1. An automatic press with adjustable power, comprising a frame (1), characterized in that: further comprising:

the transmission assembly is arranged on the rack (1), is used for outputting power of power equipment to do work and can be subjected to stepless speed change adjustment;

the detection assembly is used for detecting the resistance of the output end of the transmission assembly, and the transmission assembly is in transmission connection with the detection assembly;

the torque compensation assembly is in transmission connection with the detection assembly and can be in transmission connection with the transmission assembly, and the detection assembly can drive the torque compensation assembly to adjust the transmission ratio of the transmission assembly; the transmission assembly comprises a first support (4) and a second support (8) which are fixed on the upper surface of the rack (1), the first support (4) and the second support (8) are both vertically and upwards arranged, and the first support (4) and the second support (8) are perpendicular to each other and fixedly connected to two ends of the first sliding rod (11); the sliding rod I (11) penetrates through and is connected onto the sliding frame (7) in a sliding mode, the sliding frame (7) penetrates through and is in threaded connection with the screw rod I (5), two ends of the screw rod I (5) are respectively connected onto the support I (4) and the support II (8) in a fixed-shaft rotating mode, the screw rod I (5) and the sliding rod I (11) are arranged in parallel, one end of the screw rod I (5) is coaxially and fixedly connected with the gear (9), a rocker (10) is fixed to one end, far away from the circle center, of the end face of the gear (9), the torque compensation assembly can be in transmission connection with the gear (9), the lower end of the sliding frame (7) is fixedly provided with the connecting plate (6), two ends of the connecting plate (6) are respectively fixedly provided with the lantern ring (15), the lantern ring (15) is rotatably connected with the rotating drum (16) in a fixed-shaft mode, and the two rotating drums (16) are respectively and are coaxially and rotatably connected with the main friction wheel (14), The device comprises an auxiliary friction wheel (13), a main friction wheel (14) and the auxiliary friction wheel (13) are completely the same in mechanism, an output shaft (28) penetrates through the rack (1) and is connected with the rack in a fixed-shaft rotating mode, a main friction disc (31) is coaxially and fixedly connected to the upper end of the output shaft (28), the main friction wheel (14) is in transmission connection with the main friction disc (31), and the auxiliary friction wheel (13) is in transmission connection with a detection assembly; the detection assembly comprises a rotating shaft (22) which penetrates through and is in fixed-shaft rotating connection with the rack (1), the upper end of the rotating shaft (22) is coaxially and fixedly connected with an auxiliary friction disc (2), an auxiliary friction wheel (13) is in transmission connection with the auxiliary friction disc (2), the rotating shaft (22) and an output shaft (28) are arranged in parallel, the auxiliary friction disc (2) and a main friction disc (31) are completely identical in structure, and the distance between the rotating shaft (22) and the output shaft (28) is equal to the distance between the main friction wheel (14) and the auxiliary friction wheel (13); the detection assembly further comprises a first pump shell (29) and a second pump shell (30) which are fixed at the bottom of the rack (1), the first pump shell (29) and the second pump shell (30) are completely identical in structure, the output shaft (28) is coaxially and fixedly connected with a pump wheel in the first pump shell (29), the rotating shaft (22) is coaxially and fixedly connected with the pump wheel in the second pump shell (30), a first air pipe (39) is fixed and communicated on the side wall of the first pump shell (29), and a second air pipe (23) is fixed and communicated on the side wall of the second pump shell (30); the detection assembly further comprises an air cylinder (25) fixed at the bottom of the rack (1), a sliding plate (26) is connected in the air cylinder (25) in a sliding mode, the sliding plate (26) divides the interior of the air cylinder (25) into two cavities, the air pipe I (39) and the air pipe II (23) are respectively communicated with the two cavities, two sides of the sliding plate (26) are respectively fixedly connected with a sliding rod II (27) and a sliding rod IV (49), the sliding rod IV (49) is located on one side, facing the air pipe II (23), of the sliding plate (26), the sliding rod IV (49) penetrates through and is connected to the end wall of the air cylinder (25) in a sliding mode, and the cross sections of the sliding rod II (27) and the sliding rod IV (49) are identical;

the lateral wall both ends of inflator (25) are all fixed and are communicated with valve barrel (36), valve barrel (36) are through four (37) trachea and fix air nozzle (40) intercommunication at connecting plate (6) both ends, and the jet direction directional friction pulley of air nozzle (40) and the contact department that corresponds the friction disc, be fixed with sealing washer (45) and nose bar (48) on valve barrel (36) inner wall, sealing washer (45) are located the inside position that is close to inflator (25) of valve barrel (36), nose bar (48) are connected with ball (46) through spring two (47), and ball (46) can carry out the shutoff to sealing washer (45).

2. An automatic press with adjustable power according to claim 1, characterized in that: the transmission assembly further comprises an input shaft (3), the two ends of the input shaft (3) are respectively connected to a first support (4) and a second support (8) in a fixed-shaft rotating mode, the input shaft (3) and a first sliding rod (11) are arranged in parallel, the input shaft (3) is respectively penetrated and connected to a main friction wheel (14) and an auxiliary friction wheel (13) in a sliding mode, a protruding edge (12) axially arranged along the axis of the input shaft (3) is fixed to the outer peripheral wall of the input shaft (3), a through groove matched with the protruding edge (12) is formed in each of the main friction wheel (14) and the auxiliary friction wheel (13), and the protruding edge (12) is connected to the inside of the through groove in a sliding mode.

3. An automatic press with adjustable power according to claim 1, characterized in that: the torque compensation assembly comprises a first pump cylinder (35) fixed inside the air cylinder (25), a first piston plate (34) is connected inside the first pump cylinder (35) in a sliding mode, the sliding rod II (27) is fixedly connected with a piston plate I (34), the pump cylinder I (35) is communicated with a pump cylinder II (42) through a liquid pipe (38), the pump cylinder II (42) is fixed on the lifting plate (19), a second piston plate (43) is connected inside the second pump cylinder (42) in a sliding manner, a third sliding rod (41) is fixed on one side of the second piston plate (43) departing from the liquid pipe (38), the third sliding rod (41) is fixedly connected with the rack (17), and the rack (17) is connected on a sliding seat (18) in a sliding way, the sliding seat (18) is fixed on a lifting plate (19), the rack (17) can be meshed with the gear (9), and the rack (17) is connected with one end, away from the second pump cylinder (42), of the lifting plate (19) through a first spring (44).

4. An automatic press with adjustable power according to claim 3, characterized in that: lifter plate (19) sliding connection is on seting up spout (20) in support two (8), the lower extreme dead axle of support two (8) rotates and is connected with screw rod two (33), the cover is established and threaded connection has swivel nut (32) on screw rod two (33), swivel nut (32) are articulated through the bottom of connecting rod (21) with lifter plate (19).

5. Use of an automatic press with adjustable power according to any of claims 1-4, characterized in that: the method comprises the following steps:

the method comprises the following steps: the power equipment outputs power to do work through the transmission assembly, and the transmission ratio of the power assembly can be adjusted in a stepless manner;

step two: the resistance of the output end of the transmission assembly is detected through the detection assembly, and the torque compensation mechanism is driven to adjust the transmission ratio of the transmission assembly under the condition of increased resistance;

step three: the detection assembly pressurizes air and cools the transmission assembly during operation.

Background

An input shaft of a transmission part of the existing press machine is in transmission connection with power equipment, and does work outwards through an output shaft of the existing press machine, and the transmission part cannot perform continuous power output adjustment, so that corresponding power cannot be output according to various working conditions, and therefore the working efficiency of the press machine is poor.

Disclosure of Invention

The invention aims to provide an automatic press with adjustable power and a using method thereof, so as to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: an automatic press with adjustable power, comprising a frame and further comprising:

the transmission assembly is arranged on the rack and used for outputting power of power equipment to do work and performing stepless speed change adjustment;

the detection assembly is used for detecting the resistance of the output end of the transmission assembly, and the transmission assembly is in transmission connection with the detection assembly;

and the torque compensation component is in transmission connection with the detection component and can be in transmission connection with the transmission component, and the detection component can drive the torque compensation component to adjust the transmission ratio of the transmission component.

Preferably, the transmission assembly comprises a first support and a second support which are fixed on the upper surface of the rack, the first support and the second support are vertically upwards arranged, the first support and the second support are perpendicular and fixedly connected to two ends of the first sliding rod, the first sliding rod penetrates through and is slidably connected to the sliding frame, the first sliding frame penetrates through and is in threaded connection with a first screw rod, two ends of the first screw rod are respectively connected to the first support and the second support in a fixed-shaft rotating mode, the first screw rod and the first sliding rod are arranged in parallel, a gear is fixedly connected to one end of the first screw rod in a coaxial mode, a rocker is fixed to one end, away from the circle center, of the end face of the gear.

Preferably, the lower end of the sliding frame is fixedly provided with a connecting plate, two ends of the connecting plate are both fixedly provided with lantern rings, rotating cylinders are rotatably connected with the lantern rings in a rotating mode, the two rotating cylinders are respectively and coaxially and rotatably connected with a main friction wheel and an auxiliary friction wheel, the main friction wheel and the auxiliary friction wheel are completely identical, the rack penetrates through the rack and is rotatably connected with an output shaft in a fixed-shaft mode, the upper end of the output shaft is coaxially and fixedly connected with a main friction disc, the main friction wheel is in transmission connection with the main friction disc, and the auxiliary friction wheel is in transmission connection with the detection assembly.

Preferably, the transmission assembly further comprises an input shaft, two ends of the input shaft are respectively connected to the first support and the second support in a fixed-shaft rotating mode, the input shaft and the first sliding rod are arranged in parallel, the input shaft penetrates through and is connected to the main friction wheel and the auxiliary friction wheel in a sliding mode respectively, protruding edges axially arranged along the axis of the input shaft are fixed on the peripheral wall of the input shaft, through grooves matched with the protruding edges are formed in the main friction wheel and the auxiliary friction wheel, and the protruding edges are connected in the through grooves in a sliding mode.

Preferably, the detection subassembly is including running through and the dead axle rotates the pivot of connection in the frame, the coaxial fixedly connected with vice friction disk in upper end of pivot, and vice friction pulley is connected with vice friction disk transmission, and pivot and output shaft parallel arrangement each other, and vice friction disk is the same with main friction disk structure completely, and the distance between pivot, the output shaft equals with the distance between main friction pulley, the vice friction pulley.

Preferably, the detection assembly further comprises a first pump shell and a second pump shell which are fixed at the bottom of the rack, the first pump shell and the second pump shell are completely identical in structure, the output shaft is coaxially and fixedly connected with the pump wheel inside the first pump shell, the rotating shaft is coaxially and fixedly connected with the pump wheel inside the second pump shell, the first air pipe is fixed and communicated on the side wall of the first pump shell, and the second air pipe is fixed and communicated on the side wall of the second pump shell.

Preferably, the detection assembly further comprises an air cylinder fixed at the bottom of the frame, a sliding plate is connected in the air cylinder in a sliding manner, the sliding plate divides the interior of the inflator into two cavities, the first air pipe and the second air pipe are respectively communicated with the two cavities, two sides of the sliding plate are respectively and fixedly connected with a second sliding rod and a fourth sliding rod, the fourth sliding rod is positioned on one side of the sliding plate facing the second air pipe, the slide bar four penetrates through and is connected to the end wall of the air cylinder in a sliding manner, the cross sections of the slide bar two and the slide bar four are the same, both ends of the outer side wall of the air cylinder are fixedly and communicated with valve cylinders, the valve cylinders are communicated with air nozzles fixed at both ends of the connecting plate through an air pipe four, and the jet direction of the air nozzle points to the contact part of the friction wheel and the corresponding friction disc, a sealing ring and a convex rod are fixed on the inner wall of the valve cylinder, the sealing ring is positioned in the position, close to the air cylinder, inside the valve cylinder, the convex rod is connected with a ball through a spring II, and the ball can seal the sealing ring.

Preferably, the torque compensation assembly comprises a first pump cylinder fixed inside the inflator, the first pump cylinder is slidably connected inside the first pump cylinder, a first piston plate is fixedly connected with a second sliding rod, the first pump cylinder is communicated with a second pump cylinder through a liquid pipe, the second pump cylinder is fixed on the lifting plate, a second piston plate is slidably connected inside the second pump cylinder, a third sliding rod is fixed on one side of the second piston plate, which deviates from the liquid pipe, the third sliding rod is fixedly connected with a rack, the rack is slidably connected on the sliding seat, the sliding seat is fixed on the lifting plate, the rack can be connected with a gear in a meshed mode, and the rack is connected with one end, far away from the second pump cylinder, of the lifting plate through the first spring.

Preferably, the lifting plate is connected to a sliding groove formed in the second support in a sliding mode, a second screw rod is rotatably connected to the lower end fixed shaft of the second support, a threaded sleeve is sleeved on the second screw rod and connected with the second screw rod in a threaded mode, and the threaded sleeve is hinged to the bottom of the lifting plate through a connecting rod.

The use method of the automatic press with adjustable power comprises the following steps:

the method comprises the following steps: the power equipment outputs power to do work through the transmission assembly, and the transmission ratio of the power assembly can be adjusted in a stepless manner;

step two: the resistance of the output end of the transmission assembly is detected through the detection assembly, and the torque compensation mechanism is driven to adjust the transmission ratio of the transmission assembly under the condition of increased resistance;

step three: the detection assembly pressurizes air and cools the transmission assembly during operation.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the power equipment outputs power to do work through the transmission assembly, and the transmission ratio of the power assembly can be adjusted in a stepless manner, so that the output power of the output shaft can be adjusted according to different working conditions, and the working efficiency and the application range of the press machine are improved.

According to the invention, the resistance of the output end of the transmission assembly is detected through the detection assembly, and the torque compensation mechanism is driven to adjust the transmission ratio of the transmission assembly under the condition of increased resistance, so that the torque is automatically adjusted and increased under the condition of increased resistance, thereby avoiding the power equipment from being locked, prolonging the service life of the power equipment, automatically recovering after the resistance disappears, and having a self-adaptive adjustment function.

According to the invention, the detection assembly pressurizes air and cools the transmission assembly when in work, so that the working stability of the transmission assembly is improved.

Drawings

FIG. 1 is a first schematic view of the cross-sectional structure of the final assembly of the present invention;

FIG. 2 is a first schematic view of the cross-sectional structure of the final assembly of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 4 is a right side view of the gear and rack connection of FIG. 1;

fig. 5 is a right side view of the cross-sectional configuration of the input shaft in the present invention.

In the figure: 1. a frame; 2. an auxiliary friction disk; 3. an input shaft; 4. a first bracket; 5. a first screw rod; 6. a connecting plate; 7. a carriage; 8. a second bracket; 9. a gear; 10. a rocker; 11. a first sliding rod; 12. a rib; 13. a secondary friction wheel; 14. a main friction wheel; 15. a collar; 16. a rotating drum; 17. a rack; 18. a slide base; 19. a lifting plate; 20. a chute; 21. a connecting rod; 22. a rotating shaft; 23. a second trachea; 24. a third trachea; 25. an air cylinder; 26. a slide plate; 27. a second sliding rod; 28. an output shaft; 29. a first pump shell; 30. a second pump shell; 31. a main friction disk; 32. a threaded sleeve; 33. a second screw; 34. a piston plate I; 35. a first pump cylinder; 36. a valve barrel; 37. a fourth trachea; 38. a liquid pipe; 39. a first trachea; 40. an air nozzle; 41. a third sliding rod; 42. a second pump cylinder; 43. a second piston plate; 44. a first spring; 45. a seal ring; 46. a ball; 47. a second spring; 48. a nose bar; 49. and a slide bar IV.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: an automatic press with adjustable power, comprising a frame 1 and further comprising:

the transmission assembly is arranged on the rack 1 and is used for outputting power of power equipment to do work and performing stepless speed change adjustment;

the detection assembly is used for detecting the resistance of the output end of the transmission assembly, and the transmission assembly is in transmission connection with the detection assembly;

and the torque compensation component is in transmission connection with the detection component and can be in transmission connection with the transmission component, and the detection component can drive the torque compensation component to adjust the transmission ratio of the transmission component.

In the embodiment, as shown in fig. 1, 2 and 5, the transmission assembly includes a first support 4 and a second support 8 fixed on the upper surface of the frame 1, the first support 4 and the second support 8 are both vertically and upwardly disposed, the first support 4 and the second support 8 are perpendicular to and fixedly connected to two ends of a first sliding rod 11, the first sliding rod 11 penetrates through and is slidably connected to the carriage 7, a first screw 5 penetrates through and is threadedly connected to the carriage 7, two ends of the first screw 5 are respectively fixed to the first support 4 and the second support 8 in a fixed-axis rotating manner, the first screw 5 and the first sliding rod 11 are disposed in parallel, one end of the first screw 5 is coaxially and fixedly connected with a gear 9, a rocker 10 is fixed to one end of the end surface of the gear 9 far from the center of a circle, the torque compensation assembly can be in transmission connection with the gear 9, a connecting plate 6 is fixed to the lower end of the carriage 7, two ends of the connecting plate 6 are both fixed with collars 15, the collars 15 are internally fixed to be rotatably connected with a rotating drum 16, the two rotating drums 16 are respectively coaxially and rotatably connected with a main friction wheel 14 and an auxiliary friction wheel 13, the main friction wheel 14 and the auxiliary friction wheel 13 are completely identical in structure, an output shaft 28 penetrates through the rack 1 and is connected with the rack in a fixed-shaft rotating mode, a main friction disc 31 is coaxially and fixedly connected with the upper end of the output shaft 28, the main friction wheel 14 is in transmission connection with the main friction disc 31, the auxiliary friction wheel 13 is in transmission connection with the detection assembly, the transmission assembly further comprises an input shaft 3, and the two ends of the input shaft 3 are respectively connected to the first support 4 and the second support 8 in a fixed-shaft rotating manner, the input shaft 3 and the first sliding rod 11 are arranged in parallel, the input shaft 3 is respectively connected to the main friction wheel 14 and the auxiliary friction wheel 13 in a penetrating manner and in a sliding manner, convex edges 12 axially arranged along the axis of the input shaft 3 are fixed on the peripheral wall of the input shaft 3, through grooves matched with the convex edges 12 are formed in the main friction wheel 14 and the auxiliary friction wheel 13, and the convex edges 12 are connected in the through grooves in a sliding manner.

In this embodiment, as shown in fig. 1, 2, 3 and 5, the detecting assembly includes a rotating shaft 22 penetrating through and fixed to the frame 1, an auxiliary friction disc 2 is coaxially and fixedly connected to an upper end of the rotating shaft 22, an auxiliary friction wheel 13 is in transmission connection with the auxiliary friction disc 2, the rotating shaft 22 and an output shaft 28 are arranged in parallel, the auxiliary friction disc 2 and a main friction disc 31 have the same structure, a distance between the rotating shaft 22 and the output shaft 28 is equal to a distance between the main friction wheel 14 and the auxiliary friction wheel 13, the detecting assembly further includes a first pump casing 29 and a second pump casing 30 fixed at the bottom of the frame 1, the first pump casing 29 and the second pump casing 30 have the same structure, the output shaft 28 is coaxially and fixedly connected with a pump wheel inside the first pump casing 29, the rotating shaft 22 is coaxially and fixedly connected with a pump wheel inside the second pump casing 30, a first air pipe 39 is fixed on a side wall of the first pump casing 29, a second air pipe 23 is fixed on a side wall of the second pump casing 30, the detection assembly further comprises an air cylinder 25 fixed at the bottom of the frame 1, a sliding plate 26 is connected in the air cylinder 25 in a sliding manner, the sliding plate 26 divides the interior of the air cylinder 25 into two cavities, an air pipe I39 and an air pipe II 23 are respectively communicated with the two cavities, a sliding rod II 27 and a sliding rod IV 49 are respectively fixedly connected to the two sides of the sliding plate 26, the sliding rod IV 49 is positioned on one side, facing the air pipe II 23, of the sliding plate 26, the sliding rod IV 49 is penetrated and connected on the end wall of the air cylinder 25 in a sliding manner, the cross sections of the sliding rod II 27 and the sliding rod IV 49 are the same, valve cylinders 36 are fixedly communicated at the two ends of the outer side wall of the air cylinder 25, the valve cylinders 36 are communicated with air nozzles 40 fixed at the two ends of the connecting plate 6 through the air pipes IV 37, the injection directions of the air nozzles 40 point to the contact positions of the friction wheels and the corresponding, the protruding rod 48 is connected with the ball 46 through a second spring 47, and the ball 46 can seal the sealing ring 45.

In this embodiment, as shown in fig. 1, 2 and 4, the torque compensation assembly includes a first pump cylinder 35 fixed inside the air cylinder 25, a first piston plate 34 is slidably connected inside the first pump cylinder 35, a second piston plate 34 is fixedly connected to a second slide rod 27, the first pump cylinder 35 is communicated with a second pump cylinder 42 through a liquid pipe 38, the second pump cylinder 42 is fixed on the lifting plate 19, a second piston plate 43 is slidably connected inside the second pump cylinder 42, a third slide rod 41 is fixed on a side of the second piston plate 43 away from the liquid pipe 38, the third slide rod 41 is fixedly connected to the rack 17, the rack 17 is slidably connected to the slide carriage 18, the slide carriage 18 is fixed on the lifting plate 19, the rack 17 is connected to the gear 9 in a meshing manner, the rack 17 is connected to an end of the lifting plate 19 away from the second pump cylinder 42 through a first spring 44, the lifting plate 19 is slidably connected to a chute 20 formed in the second bracket 8, a second lower fixed shaft of the second bracket 8 is rotatably connected to a second screw 33, the second screw 33 is sleeved and connected with a threaded sleeve 32 in a threaded manner, and the threaded sleeve 32 is hinged with the bottom of the lifting plate 19 through a connecting rod 21.

The use method and the advantages of the invention are as follows: when the automatic press with adjustable power works, the working process is as follows:

the method comprises the following steps: as shown in fig. 1 and fig. 2, the power device drives the input shaft 3 to rotate, so that the input shaft 3 synchronously drives the main friction wheel 14 and the auxiliary friction wheel 13 to rotate, so that the main friction wheel 14 drives the output shaft 28 to rotate through the main friction disc 31, so that the output shaft 28 outputs work, when the output power of the output shaft 28 needs to be adjusted according to the working condition, firstly, the screw rod two 33 is rotated to enable the threaded sleeve 32 to apply a pulling force to the connecting rod 21 through threaded transmission, and the lifting plate 19 moves downwards, so that the rack 17 is far away from the gear 9, and the rocker 10 drives the gear 9 to rotate, so that the gear 9 drives the screw rod one 5 to rotate, so that the screw rod one 5 drives the carriage 7 to move on the slide rod one 11, so that the carriage 7 synchronously drives the main friction wheel 14 and the auxiliary friction wheel 13 to move through the connecting plate 6 and the collars 15 at the two ends thereof, so as to, and then realize the regulation of output power of output shaft 28, realize adjusting the output power of output shaft 28 according to the operating mode of difference to can realize stepless regulation, improve work efficiency and application scope of press, after the regulation is accomplished, the reverse rotation screw rod two 33 for swivel nut 32 passes through connecting rod 21 and drives lifter plate 19 and shift up, and makes rack 17 and gear 9 meshing be connected.

Step two: as mentioned above, when the output shaft 28 normally works, the main friction disc 31 and the sub friction disc 2 rotate at the same speed, so that the pump wheel rotates at the same speed, and further the air pressure of the air pipe i 39 and the air pipe ii 23 to the corresponding cavity in the air cylinder 25 is the same, and further the sliding plate 26 is at the neutral position, when the output shaft 28 works, the sudden situation causes the resistance to become large, so that the speed of the output shaft 28 becomes slow, and since the speed of the main friction wheel 14 and the speed of the sub friction wheel 13 does not change, the air pressure of the air pipe i 39 to the corresponding cavity becomes small, and the sliding plate 26 moves to the right under the effect of the pressure difference, and drives the piston plate i 34 through the slide rod ii 27 to transfer the oil in the pump cylinder i 35 through the liquid pipe 38 to the pump cylinder ii 42, so that the piston plate ii 43 pushes the rack 17 through the slide rod iii 41 to move to the left in fig. 4, and simultaneously compresses the spring i 44, so that the spring i 44 obtains a restoring force, the left movement of the rack 17 drives the gear 9 to rotate, so that the gear 9 drives the sliding frame 7 to move to the right in the drawing 1 through the screw rod I5, further the sliding frame 7 drives the main friction wheel 14 and the auxiliary friction wheel 13 to move to the right through the connecting plate 6, further the transmission force arms of the main friction wheel 14 and the main friction disc 31 are increased, further the torque of the output shaft 28 is increased, so that the resistance is overcome, the output shaft 28 can normally rotate, the power equipment is prevented from being stuck, the service life of the power equipment is prolonged, under the condition that the output shaft 28 is recovered to be normal, the rack 17 reversely moves and is recovered under the restoring force action of the spring I44, further the screw rod I5 drives the sliding frame 7 to recover through the reverse rotation of the gear 9, further the main friction wheel 14 and the auxiliary friction wheel 13 are reset to the left, the purpose that the torque is automatically adjusted and increased under the condition that the resistance is increased is met, and the torque is automatically recovered after the resistance disappears is achieved, the self-adaptive adjusting function is provided, after the rack 17 is reset, the sliding rod III 41 drives the piston plate II 43 to pressurize oil in the pump cylinder II 42, the oil enters the pump cylinder I35 through the liquid pipe 38, so that the piston plate I34 drives the sliding plate 26 to reset through the sliding rod II 27,

step three: because the first air pipe 39 and the second air pipe 23 are continuously conveyed to the air in the cavity, after the air pressure reaches a certain degree, the ball 46 and the compression spring 47 do not block the sealing ring 45, so that the air in the cavity is conveyed to the air nozzle 40 through the valve cylinder 36 and the fourth air pipe 37, and is blown to the corresponding friction and friction disk contact position by the air nozzle 40, and the cooling effect is achieved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.