1. A flywheel stopper is used for stopping a flywheel (1) of an engine with a flywheel design that starting teeth are shielded by signal teeth, and a circle of starting teeth (2) are arranged on the outer peripheral surface of the flywheel (1), and is characterized by comprising a clamping plate (3), a fixed column (4) and a J-shaped hook (5);

a plurality of clamping teeth (301) matched with the starting teeth (2) are arranged on the left side of the clamping plate (3), a strip-shaped hole (302) in the left-right direction is formed in the clamping plate (3), and the fixing column (4) penetrates through the strip-shaped hole (302) and is inserted into a fixing hole formed in a cylinder body (6) of the engine;

the front surface of the clamping plate (3) is vertically provided with a guide groove;

the J-shaped hook (5) comprises a hook handle (501) and a hook part (502) located on the left side of the hook handle (501), a sliding block matched with the guide groove is arranged on the J-shaped hook (5), the J-shaped hook (5) is slidably mounted on the clamping plate (3), when the J-shaped hook (5) moves upwards to the position where the hook part (502) is separated from the fixed column (4), the clamping plate (3) and the fixed column (4) are unlocked, and the clamping plate (3) can move left and right; the J-shaped hook (5) moves downwards to the hook portion (502) to clamp the fixed column (4), the clamping plate (3) is locked with the fixed column (4), and the clamping plate (3) is fixed relative to the fixed column (4).

2. The flywheel stopper as claimed in claim 1, wherein a stopper (7) is fixedly connected to the catch plate (3), the stopper (7) is located above the J-shaped hook (5), and a compression spring (8) is arranged between the J-shaped hook (5) and the stopper (7).

3. The freewheel stopper according to claim 2 characterized in that, the face of the J-shaped hook (5) opposite to the stopper (7) is provided with a spring receiving cavity, respectively, the upper end of the compression spring (8) is located in the spring receiving cavity of the stopper (7), and the lower end of the compression spring (8) is located in the spring receiving cavity of the J-shaped hook (5).

4. The freewheel stopper according to claim 1 characterized in that, fixed connection has a locating piece (9) on the catch plate (3), and the locating piece (9) is located under the hook portion (502) of the J-shaped hook (5).

5. A freewheel stop according to claim 2, characterized in that, the end-side of the hook (502) near the freewheel (1) is provided with a chamfer (503).

6. The freewheel stopper according to claim 4 characterized in that, the top and bottom sides of the fixed column (4) are provided with horizontal anti-rotation surfaces (401), respectively, and the top end of the positioning block (9) rests on the horizontal anti-rotation surfaces (401) on the bottom side of the fixed column (4).

7. The flywheel stopper as claimed in claim 1, characterised in that vertical rotation-stopping surfaces (402) are provided on the left and right side of the fixing post (4), respectively, the distance of the two vertical rotation-stopping surfaces (402) matching the opening size of the hook (502).

8. A flywheel stopper according to claim 1 wherein the guide slot is a dovetail slot (303) and the slider is a dovetail-type slider (504) mating with the dovetail slot (303).

9. A flywheel immobilizer according to claim 1, characterized in that the right side of the catch plate (3) is provided with a handle (10).

Background

In the production process of the engine, the moment assembly or disassembly operation of the flywheel, the pressure plate and the driving wheel is involved. In the assembling process, the moment calibration of the related parts can be completed only by stopping the flywheel to rotate; likewise, it is necessary to stop the flywheel from rotating during maintenance to complete the platen removal. The flywheel locking tool used in the prior art is simple in structure, small in application range and incapable of coping with a flywheel structure with flywheel starting teeth shielded by signal teeth. This design provides a locking flywheel solution that can stretch out and draw back, can avoid sheltering from to the flywheel design that the start tooth was sheltered from by the signal tooth. Meanwhile, the locking device is convenient to use and good in locking effect.

Disclosure of Invention

In order to solve the technical problems, the invention mainly aims to provide a flywheel stop dog which is simple in structure, convenient to use, good in stop effect and reliable in stop.

In order to achieve the above object, the present invention adopts the following technical solutions.

A flywheel stopper is used for stopping a flywheel of an engine, a circle of starting teeth are arranged on the peripheral surface of the flywheel, and the flywheel stopper comprises a clamping plate, a fixing column and a J-shaped hook;

a plurality of clamping teeth matched with the starting teeth are arranged on the left side of the clamping plate, a strip-shaped hole in the left-right direction is formed in the clamping plate, and the fixing column penetrates through the strip-shaped hole and is inserted into a fixing hole formed in a cylinder body of the engine;

the front surface of the clamping plate is vertically provided with a guide groove; the J-shaped hook comprises a hook handle and a hook part positioned on the left side of the hook handle, a sliding block matched with the guide groove is arranged on the J-shaped hook, the J-shaped hook is slidably arranged on the clamping plate, when the J-shaped hook moves upwards to separate the hook part from the fixed column, the clamping plate is unlocked with the fixed column, and the clamping plate can move left and right; the J-shaped hook moves downwards to the hook part to clamp the fixed column, the clamping plate and the fixed column are locked, and the clamping plate and the fixed column are relatively fixed.

Further, fixedly connected with stopper on the cardboard, the stopper is located the top of J type hook, is provided with compression spring between J type hook and the stopper.

Furthermore, the surfaces of the J-shaped hooks, which are opposite to the limiting blocks, are respectively provided with a spring accommodating cavity, the spring accommodating cavity is positioned in the limiting blocks, and the lower ends of the compression springs are positioned in the spring accommodating cavities of the J-shaped hooks.

Furthermore, a positioning block is fixedly connected to the clamping plate and is positioned below the hook part of the J-shaped hook.

Furthermore, the side face of the end part of the hook part close to the flywheel is provided with an oblique chamfer.

Further, the last side and the downside of fixed column are provided with the level respectively and only change the face, and the upper end of locating piece supports and leans on the level of fixed column downside only changes the face.

Furthermore, vertical rotation stopping surfaces are respectively arranged on the left side surface and the right side surface of the fixing column, and the distance between the two vertical rotation stopping surfaces is matched with the opening size of the hook part.

Furthermore, the guide groove is a dovetail groove, and the sliding block is a dovetail sliding block matched with the dovetail groove.

Further, the right side face of the clamping plate is provided with a handle.

Compared with the prior art, the technical scheme of the flywheel stopper has the advantages of simple structure, convenience in operation, reliability in stopping and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a front view of one embodiment of a flywheel stop of the present invention;

FIG. 2 is a left side view of one embodiment of the flywheel stop of the present invention;

FIG. 3 is a top view of one embodiment of a flywheel stop of the present invention;

FIG. 4 is a perspective view of a stationary post in an embodiment of the flywheel stop of the present invention;

FIG. 5 is a schematic view of the flywheel stop of the present invention unlocked from the engine flywheel;

FIG. 6 is a schematic view of the flywheel stopper of the present invention locked with the engine flywheel.

In the above figures:

1, a flywheel; 2 starting the teeth; 3, clamping a plate; 301 latch; 302 strip-shaped holes; 303, a dovetail groove; 4, fixing a column; 401 horizontal rotation-stopping surface; 402 vertical rotation stop surfaces; 5J-shaped hooks; 501 hook handle; 502 hook part; 503 chamfering; 504 dovetail type sliders; 6, a cylinder body; 7, a limiting block; 8, compressing the spring; 9, positioning blocks; 10 handle.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

In the production process of the engine, the moment assembly or disassembly operation of the flywheel, the pressure plate and the driving wheel is involved. In the assembling process, the moment calibration of the related parts can be completed only by stopping the flywheel to rotate; likewise, it is necessary to stop the flywheel from rotating during maintenance to complete the platen removal. The flywheel locking tool used in the prior art is simple in structure, small in application range and incapable of coping with a flywheel structure with flywheel starting teeth shielded by signal teeth. This design provides a locking flywheel solution that can stretch out and draw back, can avoid sheltering from to the flywheel design that the start tooth was sheltered from by the signal tooth. Meanwhile, the locking device is convenient to use and good in locking effect.

Referring to fig. 1, 2 and 3, a flywheel stopper is used for stopping a flywheel of an engine with a flywheel design that starting teeth are shielded by signal teeth, a circle of starting teeth 2 is arranged on the outer peripheral surface of the flywheel 1, and the flywheel stopper comprises a clamping plate 3, a fixed column 4 and a J-shaped hook 5; a plurality of clamping teeth 301 matched with the starting teeth 2 are arranged on the left side of the clamping plate 3, a strip-shaped hole 302 in the left-right direction is formed in the clamping plate 3, and the fixing column 4 penetrates through the strip-shaped hole 302 and is inserted into a fixing hole formed in a cylinder body 6 of the engine; the front surface of the clamping plate 3 is vertically provided with a guide groove; the J-shaped hook 5 comprises a hook handle 501 and a hook part 502 positioned on the left side of the hook handle 501, a sliding block matched with the guide groove is arranged on the J-shaped hook 5, the J-shaped hook 5 is slidably mounted on the clamping plate 3, when the J-shaped hook 5 moves upwards and the hook part 502 is separated from the fixed column 4, the clamping plate 3 is unlocked with the fixed column 4, and the clamping plate 3 can move left and right; the J-shaped hook 5 moves downwards to the hook part 502 to clamp the fixing column 4, the clamping plate 3 is locked with the fixing column 4, and the clamping plate 3 is fixed relative to the fixing column 4.

In the above embodiment, the flywheel stopper is installed on the right side of the flywheel 1 for convenience of explaining the operation principle, and in practice, the flywheel 1 stopper may be installed at other positions of the flywheel 1. Referring to fig. 5 and 6, the flywheel stopper is mounted in a fixing hole on the engine block 6 through the fixing post 4, the J-shaped hook 5 is moved upward, the hook portion 502 of the J-shaped hook 5 is disengaged from the fixing post 4, the catch plate 3 is moved rightward, and the catch plate 3 is unlocked from the flywheel 1. When the flywheel 1 needs to be stopped, the clamping plate 3 is moved leftwards to enable the clamping teeth 301 to be meshed with the starting teeth 2, then the J-shaped hook 5 is moved downwards to enable the hook portion 502 to clamp the fixing column 4, and the clamping plate 3 and the flywheel 1 can be locked.

Further, a limiting block 7 is fixedly connected to the clamping plate 3, the limiting block 7 is located above the J-shaped hook 5, and a compression spring 8 is arranged between the J-shaped hook 5 and the limiting block 7. The face that J type hook 5 and stopper 7 are relative is provided with the spring respectively and holds the chamber, compression spring 8's upper end is arranged in stopper 7's spring holds the chamber, compression spring 8's lower extreme is arranged in J type hook 5's spring holds the chamber.

A positioning block 9 is fixedly connected to the clamping plate 3, and the positioning block 9 is located below the hook portion 502 of the J-shaped hook 5.

Further, the side surface of the end part of the hook part 502 close to the flywheel 1 is provided with an oblique chamfer 503.

In the above embodiment, in order to move up the limit to the J-shaped hook 5, fixedly connected with stopper 7 on the cardboard 3, in order to move down the limit to the J-shaped hook 5, fixedly connected with locating piece 9 on the cardboard 3. A compression spring 8 is arranged between the limiting block 7 and the top of the J-shaped hook 5. So as to ensure that the J-shaped hook 5 reliably blocks the fixed column 4 and realize the reliable locking of the clamping plate 3 and the flywheel 1. The end part of the hook part 502 close to one side of the flywheel 1 is provided with an oblique chamfer 503, the oblique chamfer 503 pushes the J-shaped hook 5 upwards to move upwards, the pushing force is removed after the compression spring 8 is compressed, and the oblique chamfer 503 partially abuts against the fixed column 4 under the restoring force of the compression spring 8 of the J-shaped hook 5, so that the clamping plate 3 can be ensured not to move towards the flywheel 1 in the unlocking state.

Further, referring to fig. 4, the upper side and the lower side of the fixing column 4 are respectively provided with a horizontal rotation stopping surface 401, and the upper end of the positioning block 9 abuts against the horizontal rotation stopping surface 401 on the lower side of the fixing column 4.

In the above embodiment, the upper end surface of the positioning block 9 abuts against the horizontal rotation stop surface 401 on the lower side surface of the fixing column 4, and the chuck plate 3 is prevented from rotating relative to the cylinder 6 of the engine.

Further, vertical rotation stopping surfaces 402 are respectively arranged on the left side surface and the right side surface of the fixed column 4, and the distance between the two vertical rotation stopping surfaces 402 is matched with the opening size of the hook portion 502.

In the above embodiment, the opening size of the hook 502 matches the distance between the two vertical rotation-stopping surfaces 402, so that the J-shaped hook 5 can be guided when moving up and down, and when the hook 502 catches the fixing post 4, the catch plate 3 can be further prevented from rotating relative to the cylinder 6 of the engine.

Further, the guide groove is a dovetail groove 303, and the slider is a dovetail-shaped slider 504 matched with the dovetail groove 303.

In the above embodiment, in order to allow the J-shaped hook 5 to smoothly move up and down on the card board 3, the guide groove on the card board 3 is the dovetail groove 303, and the J-shaped hook 5 is provided with the dovetail slider 504.

Further, in order to move the card board 3 conveniently, a handle 10 is arranged on the right side face of the card board 3.

Further, in order to facilitate the movement of the card, the right side surface of the card is provided with a handle 10.

Illustratively, the following is a method of using an embodiment of a flywheel stopper:

step one, pushing the J-shaped hook upwards to separate the hook part from the fixed column;

step two, mounting the flywheel stopper on a cylinder body of the engine through a fixing column;

thirdly, when the engine is overhauled and the flywheel needs to be stopped, the clamping plate is moved leftwards, the clamping teeth are meshed with the starting teeth, and the J-shaped hook clamps the fixed column under the action of the restoring force of the compression spring to stop the flywheel;

and step four, after the maintenance of the engine is finished and the flywheel needs to be unlocked, the J-shaped hook is pushed upwards to enable the hook part to be unhooked from the fixed column, the inclined chamfer surface at the end part of the hook part abuts against the fixed column, and the clamping plate and the flywheel are unlocked.

Although the present invention has been described in detail in this specification with reference to specific embodiments and illustrative embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Accordingly, such modifications and improvements are intended to be within the scope of this invention as claimed.