Burr removing device for crankshaft chain wheel

By designing a crankshaft sprocket deburring device with a multi-angle grinding and positioning mechanism, the problem that existing equipment can only deburr on one side has been solved, realizing simultaneous grinding on multiple sides and improving deburring efficiency and stability.

CN223834152UActive Publication Date: 2026-01-27SHANGHAI RIZHI MASCH MFG CO LTD
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Patent Information

Application Number
CN202520286655.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-01-27
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

Existing crankshaft sprocket deburring equipment can only remove burrs from one side, resulting in low deburring efficiency and affecting processing efficiency.

Method used

A crankshaft sprocket deburring device was designed, which uses multiple grinding discs set at different angles on a turntable and achieves multi-faceted grinding through a motor and cylinder drive system. Combined with adjustment and positioning mechanisms, it ensures uniform grinding of each surface.

Benefits of technology

It improves the efficiency and integrity of deburring, enables simultaneous grinding of multiple surfaces, and enhances processing efficiency and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a crankshaft chain wheel deburring device, and relates to the field of automobile engine crankshaft chain wheel machining, the crankshaft chain wheel deburring device comprises a shell and a mounting frame, the shell is internally provided with a rotating disc used for driving a crankshaft chain wheel to rotate, the rotating disc is provided with a plurality of mounting columns used for mounting the crankshaft chain wheel, and the bottom of the rotating disc is provided with an adjusting mechanism; and the mounting frame is positioned below the turntable. A rotating motor is controlled to be started, the output end of the rotating motor drives a second bevel gear to rotate, the second bevel gear rotates and drives a first bevel gear to rotate along with the second bevel gear, a rotating column is driven to rotate, and the rotating column rotates and drives a rotating disc and a plurality of crankshaft chain wheels installed on the rotating disc to move; and the position is adjusted, so that the multiple surfaces of the crankshaft chain wheel can be sequentially polished through the multiple grinding discs with different angles, and then the working efficiency of deburring can be improved.
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Description

Technical Field

[0001] This application relates to the field of machining crankshaft sprockets for automobile engines, and in particular to a deburring device for crankshaft sprockets. Background Technology

[0002] The crankshaft sprocket is an important component in an engine. Its main function is to connect the crankshaft and camshaft, ensuring the engine's normal operation. The crankshaft sprocket is connected to the crankshaft and camshaft via a chain or gear, transmitting engine power and converting it into driving force to ensure the synchronous operation of all engine components.

[0003] Currently, when deburring crankshaft sprockets, since the sprocket consists of multiple rings of teeth with small annular grooves between each ring of teeth and the adjacent ring of teeth, the current deburring methods are manual or equipment-based. However, existing equipment often only removes burrs from one side, resulting in low deburring efficiency and consequently affecting processing efficiency. Utility Model Content

[0004] To improve the deburring efficiency, this application provides a crankshaft sprocket deburring device.

[0005] The crankshaft sprocket deburring device provided in this application adopts the following technical solution: A crankshaft sprocket deburring device includes a housing and a mounting frame. The housing is provided with a turntable for driving the crankshaft sprocket to rotate. The turntable is provided with a plurality of mounting posts for mounting the crankshaft sprocket. The bottom of the turntable is provided with an adjustment mechanism. The mounting frame is located below the turntable. The outer side of the mounting frame is provided with a grinding mechanism for deburring the crankshaft sprocket.

[0006] The grinding mechanism includes multiple support frames located outside the mounting frame. Each of the multiple support frames has a sliding plate slidably mounted on its top. Each of the multiple sliding plates has a corresponding first motor, second motor, third motor, and fourth motor fixedly mounted on its top. The output ends of the first motor, second motor, third motor, and fourth motor are all connected to corresponding grinding discs via connectors. The multiple grinding discs are positioned at different angles and are located on different surfaces of the crankshaft sprocket. Each of the multiple sliding plates is equipped with a drive mechanism.

[0007] By adopting the above technical solution, the corresponding first motor, second motor, third motor and fourth motor are controlled to start and drive the corresponding grinding disc to rotate, thereby completing the grinding process.

[0008] Preferably, the driving mechanism includes a connecting plate fixedly mounted on a support frame, and two first cylinders are symmetrically fixedly mounted on one side of the connecting plate, with the output ends of the two first cylinders fixedly connected to a sliding plate.

[0009] By adopting the above technical solution, the output ends of multiple first cylinders will drive the corresponding sliding plates to move, and the movement of multiple sliding plates will drive the corresponding first motor, second motor, third motor and fourth motor to move, and move the corresponding grinding disc to the surface of the corresponding crankshaft sprocket.

[0010] Preferably, the top of the support frame is provided with a sliding groove, and a sliding block is slidably installed in the sliding groove, the sliding block being fixedly connected to the sliding plate.

[0011] By adopting the above technical solution, the sliding groove and sliding block can be set to limit the movement.

[0012] Preferably, the adjustment mechanism includes a housing fixedly installed within an installation frame, a first bevel gear rotatably mounted inside the housing, a rotating column fixedly mounted at one top end of the first bevel gear, the top end of the rotating column being fixedly connected to a turntable, a rotary motor being provided on one side of the housing, and a second bevel gear meshing with the first bevel gear being rotatably mounted on the inner wall of one side of the housing, the output end of the rotary motor being fixedly connected to the second bevel gear.

[0013] By adopting the above technical solution, the output end of the rotary motor is driven to rotate the second bevel gear, which in turn drives the first bevel gear to rotate, and drives the rotating column to rotate. The rotation of the rotating column drives the turntable and multiple crankshaft sprockets mounted on the turntable to move and adjust their positions. Thus, multiple surfaces of the crankshaft sprockets can be polished sequentially by multiple grinding discs with different angles, thereby improving the efficiency of deburring.

[0014] Preferably, a fixing frame is fixedly installed on one side of the housing, and the rotary motor is fixedly installed on the fixing frame.

[0015] By adopting the above technical solution and setting up a fixing frame, the installation can be assisted.

[0016] Preferably, a support plate is fixedly installed on the top of the mounting frame, a second cylinder is fixedly installed on the top of the support plate, and a positioning seat is fixedly installed on the output end of the second cylinder, the positioning seat being located on one side of the turntable.

[0017] By adopting the above technical solution, the output end of the second cylinder is pushed to move by controlling the start of the second cylinder. The moving positioning seat can contact one of the mounting posts and position it, thereby improving the stability during grinding and thus improving the integrity of deburring.

[0018] Preferably, the top of the housing has an observation port, and an observation window is fixedly installed inside the observation port, and the observation window is made of transparent material.

[0019] By adopting the above technical solution, observation ports can be set up to facilitate real-time observation of the situation.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application employs a combination of grinding discs and other components. By controlling the start of a rotary motor, the output of the rotary motor drives a second bevel gear to rotate. The rotation of the second bevel gear drives the first bevel gear to rotate as well, and drives a rotating column to rotate. The rotation of the rotating column drives a turntable and multiple crankshaft sprockets mounted on the turntable to move and adjust their positions. This allows multiple surfaces of the crankshaft sprockets to be polished sequentially by multiple grinding discs at different angles, thereby improving the efficiency of deburring.

[0022] 2. In this application, with the cooperation of a positioning seat, the second cylinder is started by controlling the start of the second cylinder, which in turn pushes the positioning seat to move. The moving positioning seat can contact one of the mounting posts and position it, thereby improving the stability during grinding and thus improving the integrity of deburring. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a crankshaft sprocket deburring device according to an embodiment of this application;

[0024] Figure 2 This is an exploded view illustrating the grinding structure, which is a key feature of this application's embodiments.

[0025] Figure 3 This is a schematic diagram illustrating the main positioning structure in the embodiments of this application;

[0026] Figure 4 This is a schematic diagram illustrating the main adjustment structure in the embodiments of this application;

[0027] Figure 5 This is a partial unfolded schematic diagram illustrating the main embodiment of the adjustment structure in this application;

[0028] Reference numerals: 1. Housing; 2. Observation port; 3. Observation window; 4. Mounting frame; 5. Turntable; 6. Mounting column; 7. Support frame; 8. First motor; 9. Second motor; 10. Third motor; 11. Fourth motor; 12. Connecting plate; 13. First cylinder; 14. Sliding plate; 15. Sliding groove; 16. Sliding block; 17. Support plate; 18. Second cylinder; 19. Positioning seat; 20. Box body; 21. Rotating column; 22. First bevel gear; 23. Second bevel gear; 24. Fixing frame; 25. Rotary motor; 26. Grinding disc. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0030] This application discloses a crankshaft sprocket deburring device.

[0031] Reference Figure 1-3 A crankshaft sprocket deburring device includes a housing 1 and a mounting frame 4, a turntable 5 disposed inside the housing 1 for driving the crankshaft sprocket to rotate, a mounting post 6 disposed on the turntable 5 for mounting the crankshaft sprocket, an adjustment mechanism disposed at the bottom of the turntable 5, the mounting frame 4 being located below the turntable 5, a grinding mechanism disposed outside the mounting frame 4 for deburring the crankshaft sprocket, and a positioning mechanism disposed on the mounting frame 4.

[0032] The grinding mechanism includes multiple support frames 7 located outside the mounting frame 4, multiple sliding plates 14 slidably mounted on the top of the multiple support frames 7, and a first motor 8, a second motor 9, a third motor 10, and a fourth motor 11 fixedly mounted on the top of the multiple sliding plates 14. The output ends of the first motor 8, the second motor 9, the third motor 10, and the fourth motor 11 are all equipped with corresponding grinding discs 26 via connectors. The multiple grinding discs 26 are positioned at different angles and are located on different surfaces of the crankshaft sprocket.

[0033] The grinding mechanism also includes a connecting plate 12 fixedly installed on the support frame 7, two first cylinders 13 symmetrically fixedly installed on one side of the connecting plate 12, and the output ends of the two first cylinders 13 are fixedly connected to the sliding plate 14, a sliding groove 15 opened on the top of the support frame 7, a sliding block 16 slidably installed in the sliding groove 15, and the sliding block 16 is fixedly connected to the sliding plate 14.

[0034] In use, by controlling the start of the corresponding first cylinders 13, first motors 8, second motors 9, third motors 10 and fourth motors 11, the output ends of the first cylinders 13 will drive the corresponding sliding plates 14 to move. The movement of the sliding plates 14 will drive the corresponding first motors 8, second motors 9, third motors 10 and fourth motors 11 to move, and move the corresponding grinding disc 26 to the surface of the corresponding crankshaft sprocket.

[0035] Reference Figure 3-5 The adjustment mechanism includes a housing 20 fixedly installed in the mounting frame 4, a first bevel gear 22 rotatably installed in the housing 20, a rotating column 21 fixedly installed at one top end of the first bevel gear 22, and the top end of the rotating column 21 is fixedly connected to the turntable 5, a fixed frame 24 fixedly installed on one side of the housing 20, a rotary motor 25 fixedly installed on the fixed frame 24, and a second bevel gear 23 rotatably installed on one inner wall of the housing 20 that meshes with the first bevel gear 22, and the output end of the rotary motor 25 is fixedly connected to the second bevel gear 23.

[0036] In use, by controlling the start of the rotary motor 25, the output end of the rotary motor 25 will drive the second bevel gear 23 to rotate. The rotation of the second bevel gear 23 will drive the first bevel gear 22 to rotate as well, and drive the rotating column 21 to rotate. The rotation of the rotating column 21 will drive the turntable 5 and the multiple crankshaft sprockets mounted on the turntable 5 to move and adjust their positions. Thus, multiple surfaces of the crankshaft sprockets can be polished sequentially by multiple grinding discs 26 at different angles, thereby improving the efficiency of deburring.

[0037] Reference Figure 2-4 The positioning mechanism includes a support plate 17 fixedly installed on the top of the mounting frame 4, a second cylinder 18 fixedly installed on the top of the support plate 17, and a positioning seat 19 fixedly installed at the output end of the second cylinder 18. The positioning seat 19 is located on one side of the turntable 5, an observation port 2 is opened on the top of the housing 1, and an observation window 3 is fixedly installed in the observation port 2. The observation window 3 is made of transparent material.

[0038] In use, by controlling the start of the second cylinder 18, the output end of the second cylinder 18 will push the positioning seat 19 to move. The positioning seat 19 can contact one of the mounting posts 6 and position it, thereby improving the stability during grinding and thus improving the integrity of deburring.

[0039] The implementation principle of the crankshaft sprocket deburring device in this application embodiment is as follows: When in use, the crankshaft sprocket to be deburred is first placed on the mounting column 6 in sequence. At this time, the corresponding first cylinder 13, first motor 8, second motor 9, third motor 10 and fourth motor 11 can be started. The output end of the multiple first cylinders 13 will drive the corresponding sliding plate 14 to move. The movement of the multiple sliding plates 14 will drive the corresponding first motor 8, second motor 9, third motor 10 and fourth motor 11 to move, and move the corresponding grinding disc 26 to the surface of the corresponding crankshaft sprocket for grinding.

[0040] By controlling the start of the rotary motor 25, the output of the rotary motor 25 will drive the second bevel gear 23 to rotate. The rotation of the second bevel gear 23 will drive the first bevel gear 22 to rotate as well, and drive the rotating column 21 to rotate. The rotation of the rotating column 21 will drive the turntable 5 and the multiple crankshaft sprockets mounted on the turntable 5 to move and adjust their positions. Thus, multiple surfaces of the crankshaft sprockets can be polished sequentially by multiple grinding discs 26 with different angles, thereby improving the efficiency of deburring.

[0041] By controlling the start of the second cylinder 18, the output end of the second cylinder 18 will push the positioning seat 19 to move. The positioning seat 19 can contact one of the mounting posts 6 and position it, thereby improving the stability during grinding and thus improving the integrity of deburring.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A crankshaft sprocket deburring device, comprising a housing (1) and a mounting frame (4), characterized in that: The housing (1) is provided with a turntable (5) for driving the crankshaft sprocket to rotate. The turntable (5) is provided with a plurality of mounting posts (6) for mounting the crankshaft sprocket. The bottom of the turntable (5) is provided with an adjustment mechanism. The mounting frame (4) is located below the turntable (5). The outer side of the mounting frame (4) is provided with a grinding mechanism for deburring the crankshaft sprocket. The grinding mechanism includes multiple support frames (7) located outside the mounting frame (4). Each of the multiple support frames (7) has a sliding plate (14) slidably mounted on its top. Each of the multiple sliding plates (14) has a corresponding first motor (8), second motor (9), third motor (10), and fourth motor (11) fixedly mounted on its top. The output ends of the first motor (8), second motor (9), third motor (10), and fourth motor (11) are all connected to corresponding grinding discs (26) via connectors. The multiple grinding discs (26) are positioned at different angles and are located on different surfaces of the crankshaft sprocket. Each of the multiple sliding plates (14) is provided with a drive mechanism.

2. The crankshaft sprocket deburring device according to claim 1, characterized in that: The drive mechanism includes a connecting plate (12) fixedly installed on the support frame (7). Two first cylinders (13) are symmetrically fixedly installed on one side of the connecting plate (12). The output ends of the two first cylinders (13) are fixedly connected to the sliding plate (14).

3. The crankshaft sprocket deburring device according to claim 1, characterized in that: The top of the support frame (7) is provided with a sliding groove (15), and a sliding block (16) is slidably installed in the sliding groove (15). The sliding block (16) is fixedly connected to the sliding plate (14).

4. The crankshaft sprocket deburring device according to claim 1, characterized in that: The adjustment mechanism includes a housing (20) fixedly installed in the mounting frame (4). A first bevel gear (22) is rotatably installed inside the housing (20). A rotating column (21) is fixedly installed at one top end of the first bevel gear (22). The top end of the rotating column (21) is fixedly connected to the turntable (5). A rotary motor (25) is provided on one side of the housing (20). A second bevel gear (23) that meshes with the first bevel gear (22) is rotatably installed on the inner wall of one side of the housing (20). The output end of the rotary motor (25) is fixedly connected to the second bevel gear (23).

5. A crankshaft sprocket deburring device according to claim 4, characterized in that: A fixing frame (24) is fixedly installed on one side of the housing (20), and the rotary motor (25) is fixedly installed on the fixing frame (24).

6. The crankshaft sprocket deburring device according to claim 1, characterized in that: A support plate (17) is fixedly installed on the top of the mounting frame (4), and a second cylinder (18) is fixedly installed on the top of the support plate (17). A positioning seat (19) is fixedly installed at the output end of the second cylinder (18), and the positioning seat (19) is located on one side of the turntable (5).

7. The crankshaft sprocket deburring device according to claim 1, characterized in that: The top of the housing (1) is provided with an observation port (2), and an observation window (3) is fixedly installed inside the observation port (2), and the observation window (3) is made of transparent material.