1. Passenger car torsion beam bench test system, including workstation (1), its characterized in that: a supporting fixed seat (2) is arranged at the top end of the workbench (1), a supporting structure (30) is arranged at one end, located at the supporting fixed seat (2), of the top end of the workbench (1), an electric control cabinet (31) is arranged at one side of the workbench (1), a support seat (3) is arranged at the top end of the supporting fixed seat (2), a lower clamping seat (4) is arranged at the inner side of the support seat (3), an upper clamping seat (5) is arranged at the top end of the lower clamping seat (4), a left longitudinal arm connecting plate (6) is arranged at one end of the lower clamping seat (4), a left clamping head (8) is arranged at one end, away from the lower clamping seat (4), of the left longitudinal arm connecting plate (6), a torsion beam main body (15) is arranged at one side of the left clamping head (8), a left hub connecting plate (10) is arranged at one side, away from the torsion beam main body (8), a right clamping head (9) is arranged at one side, away from the left clamping head (8), of the torsion beam main body (15), one side, far away from the torsion beam main body (15), of the right chuck (9) is provided with a right hub connecting plate (11), a bolt (12) is arranged on the right hub connecting plate (11), an electric servo cylinder (17) is installed at the top end of the supporting structure (30), an upper stop displacement sensor (27) is arranged on the electric servo cylinder (17), a first stopping nut (19) is arranged at the top end of the electric servo cylinder (17), a lubricating grease storage ring (18) is arranged on the outer wall of the electric servo cylinder (17), a zero displacement sensor (28) is arranged below the upper stop displacement sensor (27), a lower stop displacement sensor (29) is arranged below the zero displacement sensor (28), a force sensor mounting seat (20) is arranged at the top end of the first stopping nut (19), a force sensor main body (21) is arranged at the top end of the force sensor mounting seat (20), a full-thread connecting rod (22) is arranged at the top end of the force sensor main body (21), an internal-thread connecting rod (24) is arranged on the outer side of the full-thread connecting rod (22), a third stopping nut (25) is arranged at the top end of the internal-thread connecting rod (24), a touch screen (48) is arranged on the electric control cabinet (31), a servo driver (35) is arranged inside the electric control cabinet (31), a cooling fan inlet (36) is arranged on the outer wall of the electric control cabinet (31), a switch board group (46) is arranged on one side of the servo driver (35), a filter (37) is arranged below the servo driver (35), a programmable controller board group (45) is arranged below the switch board group (46), a wiring board group (43) is arranged below the programmable controller board group (45), and a branching clamping groove (44) is arranged below the wiring board group (43), and a three-phase dry-type transformer (38) is arranged below the distributing clamping groove (44).

2. The passenger car torsion beam stand testing system of claim 1, wherein: the bottom of workstation (1) is provided with stabilizer blade (16), the outside of supporting fixing base (2) is provided with clamp plate (14), and supports fixing base (2) and workstation (1) and pass through clamp plate (14) fixed connection, the inboard of workstation (1) is provided with "T" type groove.

3. The passenger car torsion beam stand testing system of claim 1, wherein: the inner side of the support (3) is provided with a lining (13), one end of the right chuck (9) is provided with a right trailing arm connecting plate (7), and the top end of the third retaining nut (25) is provided with an end joint bearing (26).

4. The passenger car torsion beam stand testing system of claim 1, wherein: the number of the electric servo cylinders (17) is two, the two electric servo cylinders (17) are symmetrically arranged with the vertical central axis of the workbench (1), and the outer wall of the full-thread connecting rod (22) is provided with a second retaining nut (23).

5. The passenger car torsion beam stand testing system of claim 1, wherein: bearing structure (30) are including shock-absorbing rubber piece (3001), double thread back shaft (3002), base supporting block (3003), servo cylinder supporting block (3004) and backing plate (3005), and the bottom of electronic servo cylinder (17) is provided with shock-absorbing rubber piece (3001), one side of shock-absorbing rubber piece (3001) is provided with base supporting block (3003), and the bottom of shock-absorbing rubber piece (3001) is provided with servo cylinder supporting block (3004), the inboard of base supporting block (3003) is provided with double thread back shaft (3002), the bottom of base supporting block (3003) is provided with backing plate (3005).

6. The passenger car torsion beam stand testing system of claim 5, wherein: double-thread support shaft (3002) and servo cylinder supporting block (3004) are connected through low rigidity shock attenuation sleeve pipe, damping rubber piece (3001) is connected through glue with electronic servo cylinder (17).

7. The passenger car torsion beam stand testing system of claim 1, wherein: the automatic control device is characterized in that a pause button (32) is arranged on the electric control cabinet (31), a servo cylinder power cable interface (39) is arranged on the inner side of the electric control cabinet (31), a total stop button (33) is arranged below the pause button (32), a start button (34) is arranged below the total stop button (33), and a sensor cable interface (40) is arranged above the servo cylinder power cable interface (39).

8. The passenger car torsion beam stand testing system of claim 1, wherein: one side of electric control cabinet (31) is provided with changer (41), the top of changer (41) is provided with heat dissipation fan export (42), the quantity of servo driver (35) is two.

9. The passenger car torsion beam stand testing system of claim 1, wherein: the top of automatically controlled cabinet (31) is provided with alarm (47), inside to automatically controlled cabinet (31) is all run through in radiator fan entry (36) and radiator fan export (42).

Background

The torsion beam of the passenger car is connected with a car body and wheels through the left and right trailing arms, belongs to a semi-independent rear suspension with specific roll stiffness, is mainly used for household cars and small buses, and a rack test is an indispensable important link in the research and development process of automobile chassis parts, and performance and reliability tests of a chassis suspension system and the parts of the chassis suspension system must be carried out on an indoor test rack.

However, when the suspension system and the parts thereof are subjected to vertical working condition tests, such as a 180-degree reverse displacement torsion fatigue endurance test of a left wheel center and a right wheel center, a parallel wheel jump fatigue endurance test of a left wheel and a right wheel and a roll stiffness test, a long time is consumed on a test bench, the test price is high, the bench test system needs to support the hydraulic actuating cylinder and the chassis parts through a complex tool, and the whole system is high in cost, limited in space expansion and complex in use and maintenance.

Disclosure of Invention

The invention aims to solve the problem that the bench test equipment cannot detect different types of parts, and provides a torsion beam bench test system for a passenger vehicle, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a torsion beam bench test system for a passenger vehicle comprises a workbench, wherein a supporting fixed seat is arranged at the top end of the workbench, a supporting structure is arranged at one end, positioned at the supporting fixed seat, of the top end of the workbench, an electric control cabinet is arranged at one side of the workbench, a support is arranged at the top end of the fixed seat, a lower clamping seat is arranged at the inner side of the support, an upper clamping seat is arranged at the top end of the lower clamping seat, a left longitudinal arm connecting plate is arranged at one end of the lower clamping seat, a left clamping head is arranged at one end of the left longitudinal arm connecting plate, far away from the lower clamping seat, a torsion beam main body is arranged at one side of the left clamping head, a left hub connecting plate is arranged at one side of the left clamping head, far away from the torsion beam main body, a right clamping head is arranged at one side of the torsion beam main body, a right hub connecting plate is arranged at one side of the right clamping head, far away from the torsion beam main body, and a bolt is arranged on the right hub connecting plate, an electric servo cylinder is installed at the top end of the supporting structure, an upper dead point displacement sensor is arranged on the electric servo cylinder, a first stopping nut is arranged at the top end of the electric servo cylinder, a lubricating grease storage ring is arranged on the outer wall of the electric servo cylinder, a zero point displacement sensor is arranged below the upper dead point displacement sensor, a lower dead point displacement sensor is arranged below the zero point displacement sensor, a force sensor installation seat is arranged at the top end of the first stopping nut, a force sensor main body is arranged at the top end of the force sensor installation seat, a full-thread connecting rod is arranged at the top end of the force sensor main body, an internal thread connecting rod is arranged on the outer side of the full-thread connecting rod, a third stopping nut is arranged at the top end of the internal thread connecting rod, a touch screen is arranged on the electric control cabinet, and a servo driver is arranged inside the electric control cabinet, the electric control cabinet is characterized in that a cooling fan inlet is formed in the outer wall of the electric control cabinet, a switch board group is arranged on one side of the servo driver, a filter is arranged below the servo driver, a programmable controller board group is arranged below the switch board group, a wiring board group is arranged below the programmable controller board group, a branching clamping groove is formed below the wiring board group, and a three-phase dry-type transformer is arranged below the branching clamping groove.

Preferably, the bottom of workstation is provided with the stabilizer blade, the outside of supporting the fixing base is provided with the clamp plate, and supports the fixing base and pass through clamp plate fixed connection with the workstation, the inboard of workstation is provided with "T" type groove.

Preferably, the inner side of the support is provided with a bushing, one end of the right chuck is provided with a right trailing arm connecting plate, and the top end of the third retaining nut is provided with an end joint bearing.

Preferably, the number of the electric servo cylinders is two, the two electric servo cylinders are symmetrically arranged on the vertical central axis of the workbench, and the outer wall of the full-thread connecting rod is provided with a second retaining nut.

Preferably, the supporting structure comprises a damping rubber block, a double-thread supporting shaft, a base supporting block, a servo cylinder supporting block and a base plate, the bottom end of the electric servo cylinder is provided with the damping rubber block, one side of the damping rubber block is provided with the base supporting block, the bottom end of the damping rubber block is provided with the servo cylinder supporting block, the inner side of the base supporting block is provided with the double-thread supporting shaft, and the bottom end of the base supporting block is provided with the base plate.

Preferably, the double-thread supporting shaft is connected with the servo cylinder supporting block through a low-hardness damping sleeve, and the damping rubber block is connected with the electric servo cylinder through glue.

Preferably, the electronic control cabinet is provided with a pause button, the inner side of the electronic control cabinet is provided with a servo cylinder power cable interface, a total stop button is arranged below the pause button, a start button is arranged below the total stop button, and a sensor cable interface is arranged above the servo cylinder power cable interface.

Preferably, one side of automatically controlled cabinet is provided with the changer, the top of changer is provided with the export of heat dissipation fan, servo driver's quantity is two.

Preferably, the top of automatically controlled cabinet is provided with the alarm, radiator fan entry and radiator fan export all run through to the inside of automatically controlled cabinet.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the support fixing seat, the left chuck, the right chuck and the electric control cabinet are arranged, the position of the torsion beam main body is adjusted through the support fixing seat, the center of a circle of the end joint bearing is adjusted through the internal thread connecting rod, the distance of the center of the end joint bearing in the vertical direction relative to the center of the bushing is adjusted, the torsion beam main bodies with different structures can be clamped and fixed through replacing the bushings and the chucks with different structures, the electric control cabinet controls the electric servo cylinder and the like to do specific vertical displacement motion, data are collected in real time through a plurality of sensors and stored in the memory of the touch screen, the vertical test requirements of the torsion beam main bodies with different configurations can be met, the cost is lower, and the problem that the bench test equipment cannot detect parts of different types is effectively solved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the workbench according to the present invention.

Fig. 3 is an enlarged schematic view of a in fig. 2 according to the present invention.

Fig. 4 is a schematic view of an electric servo cylinder of the present invention.

Fig. 5 is an enlarged view of B in fig. 4 according to the present invention.

Fig. 6 is a schematic structural view of an electric control cabinet according to the present invention.

In the figure: 1. a work table; 2. a supporting fixed seat; 3. a support; 4. a lower clamping seat; 5. an upper clamping seat; 6. a left trailing arm connecting plate; 7. a right trailing arm connecting plate; 8. a left chuck; 9. a right chuck; 10. a left hub connection plate; 11. a right hub connection plate; 12. a bolt; 13. a bushing; 14. pressing a plate; 15. a torsion beam body; 16. a support leg; 17. an electric servo cylinder; 18. a grease storage ring; 19. a first retaining nut; 20. a force sensor mount; 21. a force sensor body; 22. a full-thread connecting rod; 23. a second retaining nut; 24. an internal threaded connecting rod; 25. a third retaining nut; 26. an end knuckle bearing; 27. a top dead center displacement sensor; 28. a zero displacement sensor; 29. a bottom dead center displacement sensor; 30. a support structure; 3001. a shock-absorbing rubber block; 3002. a double-thread support shaft; 3003. a base support block; 3004. a servo cylinder support block; 3005. a base plate; 31. an electric control cabinet; 32. a pause button; 33. a master stop button; 34. a start button; 35. a servo driver; 36. an inlet of a heat dissipation fan; 37. a filter; 38. a three-phase dry-type transformer; 39. a servo cylinder power cable interface; 40. a sensor cable interface; 41. a transmitter; 42. an outlet of the heat dissipation fan; 43. a terminal plate group; 44. a branching clamping groove; 45. a set of programmable controller boards; 46. a switch plate group; 47. an alarm; 48. a touch screen.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, embodiments of a torsion beam rack test system for a passenger car according to the present invention: a passenger car torsion beam bench test system comprises a workbench 1, wherein a supporting fixed seat 2 is arranged at the top end of the workbench 1, a supporting structure 30 is arranged at one end, positioned at the supporting fixed seat 2, of the top end of the workbench 1, an electric control cabinet 31 is arranged at one side of the workbench 1, a support 3 is arranged at the top end of the supporting fixed seat 2, a lower clamping seat 4 is arranged at the inner side of the support 3, an upper clamping seat 5 is arranged at the top end of the lower clamping seat 4, a left longitudinal arm connecting plate 6 is arranged at one end of the lower clamping seat 4, a left clamping head 8 is arranged at one end, far away from the lower clamping seat 4, of the left longitudinal arm connecting plate 6, a torsion beam main body 15 is arranged at one side of the left clamping head 8, a left hub connecting plate 10 is arranged at one side, far away from the left clamping head 8, of the torsion beam main body 15 is provided with a right clamping head 9, and a right hub connecting plate 11 is arranged at one side, far away from the torsion beam main body 15, of the right clamping head 9, the right hub connecting plate 11 is provided with a bolt 12, the top end of the supporting structure 30 is provided with an electric servo cylinder 17, the electric servo cylinder 17 is provided with an upper dead point displacement sensor 27, the top end of the electric servo cylinder 17 is provided with a first stopping nut 19, the outer wall of the electric servo cylinder 17 is provided with a lubricating grease storage ring 18, the lower part of the upper dead point displacement sensor 27 is provided with a zero point displacement sensor 28, the lower part of the zero point displacement sensor 28 is provided with a lower dead point displacement sensor 29, the top end of the first stopping nut 19 is provided with a force sensor mounting seat 20, the top end of the force sensor mounting seat 20 is provided with a force sensor main body 21, the top end of the force sensor main body 21 is provided with a full-thread connecting rod 22, the outer side of the full-thread connecting rod 22 is provided with an internal thread connecting rod 24, the top end of the internal thread connecting rod 24 is provided with a third stopping nut 25, and the electric control cabinet 31 is provided with a touch screen 48, a servo driver 35 is arranged in the electric control cabinet 31, a cooling fan inlet 36 is arranged on the outer wall of the electric control cabinet 31, a switch board group 46 is arranged on one side of the servo driver 35, a filter 37 is arranged below the servo driver 35, a programmable controller board group 45 is arranged below the switch board group 46, a wiring board group 43 is arranged below the programmable controller board group 45, a branching card slot 44 is arranged below the wiring board group 43, and a three-phase dry-type transformer 38 is arranged below the branching card slot 44.

The bottom of workstation 1 is provided with stabilizer blade 16, the outside of supporting fixing base 2 is provided with clamp plate 14, and support fixing base 2 and workstation 1 and pass through 14 fixed connection of clamp plate, the inboard of workstation 1 is provided with "T" type groove, the 1 accessible 6 stabilizer blades 16 that possess screw thread elevation structure of workstation adjust the mesa horizontality, clamp plate 14 is used for fixing supporting fixing base 2 on workstation 1, the adjustment supports 2 intervals on "T" type groove of fixing base, change bush 13 and the chuck of isostructure, can switch the 15 appearance pieces of torsion beam main part of different grade type, be used for experimental detection.

The inboard of support 3 is provided with bush 13, and the one end of right chuck 9 is provided with right trailing arm connecting plate 7, and the top of third stopping nut 25 is provided with end joint bearing 26, and bush 13 is used for fixing the inboard at support 3 with last cassette 5 and lower cassette 4 of difference, and right chuck 9 can be fixed on lower cassette 4 through right trailing arm connecting plate 7, and end joint bearing 26 is used for passing through bolt 12 fixed mounting with left wheel hub connecting plate 10, right wheel hub connecting plate 11.

The quantity of electric servo cylinder 17 is two, and two electric servo cylinders 17 set up with the vertical axis symmetry of workstation 1, the outer wall of full thread connecting rod 22 is provided with second stopping nut 23, electric servo cylinder 17 symmetric distribution is in workstation 1 both sides with centre gripping and fixed torsion beam main part 15, and through last cassette 5, lower cassette 4 and bush 13 replace the connection structure with the automobile body, left wheel hub connecting plate 10, right wheel hub connecting plate 11 replaces left, right wheel core, simulate the position that torsion beam main part 15 was located in the rear axle assembly with this mode, and the position of rear axle assembly for automobile body tie point and wheel core, second stopping nut 23 is used for fixing full thread connecting rod 22.

Support structure 30 includes damping rubber block 3001, double thread support shaft 3002, base support block 3003, servo cylinder support block 3004 and backing plate 3005, and the bottom of electric servo cylinder 17 is provided with damping rubber block 3001, one side of damping rubber block 3001 is provided with base support block 3003, and damping rubber block 3001's bottom is provided with servo cylinder support block 3004, the inboard of base support block 3003 is provided with double thread support shaft 3002, base support block 3003's bottom is provided with backing plate 3005, backing plate 3005 supports double thread support shaft 3002 through base support block 3003, and double thread support shaft 3002 is connected with damping rubber block 3001 through servo cylinder support block 3004, then electric servo cylinder 17 moves, the vibrations power that produces is cushioned through damping rubber block 3001, thereby make electric servo cylinder 17 smooth operation.

The double-thread support shaft 3002 is connected with the servo cylinder support block 3004 through a low-hardness damping sleeve, the damping rubber block 3001 is connected with the electric servo cylinder 17 through glue, the electric servo cylinder 17 can perform a parallel wheel jump fatigue endurance test, a left wheel center and right wheel center 180-degree reverse displacement torsion fatigue endurance test and a roll stiffness test according to set loading times, frequency and displacement parameters, the loading times, force load data and displacement data are acquired and stored according to requirements, when the electric servo cylinder 17 operates, damping is performed through the servo cylinder support block 3004, the vibration frequency is reduced again by enabling the servo cylinder support block 3004 to pass through the low-hardness damping sleeve, accordingly, the vibration force transmitted to the double-thread support shaft 3002 is small, and the service life of the double-thread support shaft 3002 is prevented from being reduced due to strong vibration.

The electric control cabinet 31 is provided with a pause button 32, the inner side of the electric control cabinet 31 is provided with a servo cylinder power cable interface 39, a total stop button 33 is arranged below the pause button 32, a start button 34 is arranged below the total stop button 33, a sensor cable interface 40 is arranged above the servo cylinder power cable interface 39, the electric control cabinet 31 is respectively connected with the electric servo cylinder 17, the displacement sensor and the force sensor main body 21 through a specific interface and a cable, current meeting the working requirement of the electric servo cylinder 17 is provided for the electric servo cylinder 17, the operation parameters of the electric servo cylinder are set through a touch screen 48 programmable controller board set 45, the operation state of the electric control cabinet is controlled, when the electric servo cylinder 17 exceeds the set displacement range, an alarm is triggered, and the pause button 32, the total stop button 33 and the start button 34 are all used for the electric control cabinet 31 to operate.

One side of automatically controlled cabinet 31 is provided with changer 41, the top of changer 41 is provided with heat dissipation fan export 42, the quantity of servo driver 35 is two, automatically controlled cabinet 31 is through specific interface, the cable is connected with electric servo cylinder 17, displacement sensor and force sensor main part 21 respectively, provide the electric current that accords with its operating requirement for electric servo cylinder 17, and set for its operating parameter through touch-sensitive screen 48 programmable controller group of boards 45, control its running state, changer 41 is arranged in detecting various test data, heat dissipation fan export 42 is used for the air current after the heat exchange to flow away the inside heat of automatically controlled cabinet 31.

The top of automatically controlled cabinet 31 is provided with alarm 47, radiator fan entry 36 and radiator fan export 42 all run through to the inside of automatically controlled cabinet 31, automatically controlled cabinet 31 is through specific interface, the cable respectively with electronic servo cylinder 17, displacement sensor and force sensor main part 21 are connected, provide the electric current that accords with its operational requirement for electronic servo cylinder 17, and set for its operating parameter through touch-sensitive 48 programmable controller board group 45, control its running state, when electronic servo cylinder 17 exceedes and sets for the displacement scope, trigger alarm 47 operation, remind the staff to notice, radiator fan entry 36 and radiator fan export 42 all are used for the radiator fan operation, make the radiator fan carry out the cooling to automatically controlled cabinet 31 and handle.

The working principle is as follows: when the invention is used, the invention needs to be understood by simple structure, as shown in fig. 1-6, the workbench 1 can adjust the horizontal state of the table top by 6 support legs 16 with a thread lifting structure, the left chuck 8 and the right chuck 9 clamp and fix the torsion beam main body 15, the connecting structure with the vehicle body is replaced by the upper chuck 5, the lower chuck 4 and the bush 13, the left wheel hub connecting plate 10 and the right wheel hub connecting plate 11 replace the wheel centers of the left wheel and the right wheel, the position of the torsion beam main body 15 in the rear axle assembly and the position of the rear axle assembly relative to the connecting point and the wheel center of the vehicle body are simulated in this way, the running mode of the electric servo cylinder 17 and the like can be controlled by setting test parameters through the electric control cabinet 31, and the feedback signals of the upper dead point displacement sensor 27, the zero point displacement sensor 28, the lower dead point displacement sensor 29 and the force sensor main body 21 are stored, the test data are recorded, the distance between the supporting and fixing seat 2 and the workbench 1 is adjusted, the chucks of different structures are replaced, torsion beam samples of different types can be switched, the vertical test requirements of torsion beam main bodies 15 of different configurations can be met, the cost is low, the test samples are convenient to switch, the rack fatigue test and the roll stiffness test of various types of torsion beam main bodies 15 can be met, the test cost can be reduced, and the detection efficiency of chassis parts is improved.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. 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.