Clutch belt pulley convenient to disassemble

Abstract

The clutch belt pulley convenient to disassemble comprises a driven wheel body, and an inner cavity is formed in the driven wheel body. A driving wheel body is installed in the driven wheel body, fixing nails are symmetrically installed on the surface of one side of the driving wheel body, a belt wheel is arranged on the surface of one side of the driven wheel body in a sleeving mode, a rotating shaft is fixedly connected to the surface of the other side of the driving wheel body, and stabilizing blocks are symmetrically installed on the two sides of the rotating shaft. Protruding blocks are symmetrically installed on the two sides of the stabilizing block and connected with the inner cavity in a clamped mode. Fixing assemblies are symmetrically arranged on the two sides of the belt pulley; by arranging the fixing assembly, the belt wheel can be quickly mounted and dismounted, so that the mounting efficiency of the belt wheel can be improved, and meanwhile, by arranging a dustproof plate, a connecting plate, a limiting rod, a spring and a limiting groove, dust prevention can be conducted on an inner cavity in the driven wheel body.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, in particular to a clutch pulley which is easy to disassemble. Background Art

[0002] The centrifugal clutch is a clutch that automatically separates or engages by relying on the centrifugal body to generate centrifugal force. Its working principle is as follows: the driving wheel drives the centrifugal block, and the centrifugal block is designed with a matching tightening spring. When the engine is idling, the centrifugal block does not move. When the engine exceeds the idle speed, the centrifugal block generates centrifugal force, which presses the inner ring of the hub wheel with the pulley under the action of centrifugal force, and transmits torque under the action of friction. The faster the engine speed, the tighter the combination of the hub and the centrifugal block, the greater the output torque, and the less likely it is to slip.

[0003] Publication No. CN114294347A discloses a centrifugal clutch with a replaceable pulley. Through the detachable connection between the pulley and the driven wheel, when transmitting with different loads, only the pulley needs to be replaced, thereby expanding the universal performance of the clutch, thereby meeting the use requirements of low-speed heavy torque of the load, not easy to slip, and extending the service life. In the fields of small agricultural machinery, small engineering machinery, small garden machinery, etc., the use of mechanical clutches is reduced, making the operation simpler, reducing maintenance costs, reducing physical exertion caused by operation, and improving the mechanical operation experience. However, the patent still has the following problems in actual use:

[0004] The pulley and the driven wheel are connected by a fastener, and the fastener passes through one side of the inner cavity of the driven wheel to connect the pulley. Specifically, the driven wheel is provided with a countersunk hole on the other side of the inner cavity of the driven wheel, and the fastener is a countersunk screw whose screw head can be buried in the countersunk hole. However, when disassembling the pulley, the staff needs to frequently disassemble the screw head, which not only makes it inconvenient to disassemble the pulley, but also frequent disassembly may cause thread slippage between the screw head and the countersunk hole.

[0005] A clutch pulley that is easy to disassemble is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a clutch pulley that is easy to disassemble, so as to solve the problem proposed in the above-mentioned background technology that the pulley and the driven wheel are currently connected by fasteners, and the fasteners penetrate from one side of the inner cavity of the driven wheel to connect the pulley. Specifically, the driven wheel is provided with a countersunk hole on the other side of the inner cavity of the driven wheel, and the fastener is a countersunk screw whose screw head can be buried in the countersunk hole. However, when disassembling the pulley, the staff needs to frequently disassemble the screw head, which not only makes it inconvenient to disassemble the pulley, but also the frequent disassembly may also cause the problem of thread slippage between the screw head and the countersunk hole.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clutch pulley that is easy to disassemble, comprising a driven wheel body, wherein an inner cavity is provided inside the driven wheel body;

[0008] A driving wheel body is installed inside the driven wheel body, a fixing nail is symmetrically installed on one side surface of the driving wheel body, a pulley is sleeved on one side surface of the driven wheel body, a rotating shaft is fixedly connected to the other side surface of the driving wheel body, stabilizing blocks are symmetrically installed on both sides of the rotating shaft, and protrusions are symmetrically installed on both sides of the stabilizing block, and the protrusions are engaged and connected with the inner cavity;

[0009] Also includes:

[0010] The two sides of the pulley are symmetrically provided with fixing components;

[0011] The fixing assembly includes a fixing frame fixedly connected to the pulley, and a fixing block is connected through the middle of the top surface of the fixing frame;

[0012] Wherein, a thread groove is provided inside the fixing block, and a fixing plate is fixedly installed inside the thread groove.

[0013] Preferably, a clamping plate is symmetrically installed on the top surface of the fixed plate, a clamping rod is fitted and connected inside the clamping plate, a rotating block is threadedly connected to the top of the threaded groove, the rotating block is fit and connected to the clamping plate, and the clamping rod is through-connected to the fixed plate.

[0014] Preferably, clamping plates are symmetrically mounted on both sides of the fixing frame.

[0015] Preferably, a clamping rod is symmetrically mounted on one side surface of the driven wheel body, and a clamping groove is symmetrically opened inside the pulley, and the clamping rod is clamped and connected with the clamping groove.

[0016] Preferably, clamping grooves are symmetrically provided on both sides of the clamping rod, and the clamping grooves are clamped and connected with the clamping rod. Clamping grooves are symmetrically provided on both sides of the clamping grooves, and the clamping grooves are clamped and connected with the clamping plate.

[0017] Preferably, a dustproof plate is symmetrically installed on the other side surface of the driven wheel body, and a connecting plate is fixedly connected to one side surface of the dustproof plate. A limiting rod is penetrated and connected to one side surface of the connecting plate. A spring is sleeved on the side surface of the limiting rod away from the connecting plate, one side surface of the spring is fixedly connected to the connecting plate, and the other side surface of the spring is fixedly connected to the limiting rod, and the side surface of the connecting plate away from the spring is fit-connected to the driven wheel body.

[0018] Preferably, a side surface of the driven wheel body close to the connecting plate is symmetrically provided with limiting grooves, and the limiting grooves are engaged and connected with the limiting rods.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the clutch pulley that is easy to disassemble can be quickly installed and disassembled by setting a fixing component, thereby improving the installation efficiency of the pulley, and at the same time, by setting a dustproof plate, a connecting plate, a limiting rod, a spring and a limiting groove, the inner cavity inside the driven wheel body can be dustproof, and the specific contents are as follows:

[0020] 1. By setting a fixing component, when the pulley needs to be replaced, the rotating block is rotated so that the rotating block no longer squeezes the clamping plate, so that the clamping plate no longer squeezes the clamping rod, so that the clamping rod and the clamping slot are initially separated, and then the fixing frame is pulled by using a tool to separate the clamping plate on the fixing frame from the clamping slot, so that the pulley can be disassembled. At the same time, during installation, the clamping slot on the pulley is aligned with the clamping rod on the driven wheel body and inserted, so that the pulley is pushed so that the hole in the middle of the pulley is fitted with the rotating shaft, and after the pulley is pushed to a suitable position so as to fit with the driven wheel body, the clamping plate and the clamping slot are clamped together by a tool, and then the clamping rod is pushed so that the clamping rod and the clamping slot are clamped, and then the rotating block is rotated so that the descending of the rotating block will squeeze the clamping plate, and after the clamping plate is squeezed, the clamping rod will be clamped, so that the clamping rod is stable, thereby completing the installation of the pulley, thereby improving the installation efficiency of the pulley;

[0021] 2. By setting a dustproof plate, a connecting plate, a limit rod, a spring and a limit groove, the limit rod is pulled to separate the limit rod from the limit groove, so that the dustproof plate can be taken out. During installation, the slider on the dustproof plate is engaged with the slide groove inside the inner cavity and slides, and the dustproof plate is moved to a suitable position, the limit rod is loosened so that the limit rod returns to its original position under the action of the spring, so that the limit rod is engaged with the limit groove, thereby completing the installation of the dustproof plate, thereby reducing the entry of dust into the inner cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0024] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle A area;

[0025] Figure 4 This is a schematic diagram of the overall structure of the fixing assembly in the utility model;

[0026] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure of area B in the middle.

[0027] In the figure: 1. driven wheel body; 2. driving wheel body; 3. fixing nail; 4. pulley; 5. fixing assembly; 501. fixing frame; 502. fixing block; 503. threaded groove; 504. fixing plate; 505. clamping plate; 506. clamping rod; 507. rotating block; 508. clamping plate; 6. rotating shaft; 7. stabilizing block; 8. protrusion; 9. inner cavity; 10. clamping rod; 11. clamping groove; 12. clamping groove; 13. clamping groove; 14. dustproof plate; 15. connecting plate; 16. limiting rod; 17. spring; 18. limiting groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5The utility model provides a technical solution: a clutch pulley that is easy to disassemble, including a driven wheel body 1, an inner cavity 9 is opened inside the driven wheel body 1; a driving wheel body 2 is installed inside the driven wheel body 1, a fixing nail 3 is symmetrically installed on one side surface of the driving wheel body 2, a pulley 4 is sleeved on one side surface of the driven wheel body 1, a rotating shaft 6 is fixedly connected to the other side surface of the driving wheel body 2, and a stabilizing block 7 is symmetrically installed on both sides of the rotating shaft 6, and a protrusion 8 is symmetrically installed on both sides of the stabilizing block 7, and the protrusion 8 is engaged with the inner cavity 9; it also includes: a fixing component 5 is symmetrically arranged on both sides of the pulley 4; wherein the fixing component 5 includes a fixing frame 501 fixedly connected to the pulley 4, and a fixing block 502 is connected through the middle of the top surface of the fixing frame 501; wherein a threaded groove 503 is opened inside the fixing block 502, and a fixing plate 504 is fixedly installed inside the threaded groove 503, such as Figure 1-4 As shown, by setting the fixing component 5, the pulley 4 can be quickly installed and disassembled more conveniently, thereby improving the efficiency of installing and disassembling the pulley 4. At the same time, the cross-sectional shapes of the two sides of the inner cavity 9 and the protrusion 8 are trapezoidal, wherein the inner cavity 9 and the protrusion 8 are three-two groups that match each other, thereby increasing the friction between the centrifugal body and the hub to compensate for the lack of bonding pressure, and achieving a close combination of the centrifugal body and the hub without slipping, achieving the same use effect as the engine at high speed, and meeting the use requirements of low-speed heavy torque under load. Furthermore, the surfaces of the inner cavity 9 and the protrusion 8 are installed with a wear-resistant material layer, so as to increase the friction and wear life during mutual friction transmission.

[0030] The top surface of the fixed plate 504 is symmetrically mounted with a clamping plate 505, the inside of the clamping plate 505 is fitted with a clamping rod 506, the top of the threaded groove 503 is threadedly connected with a rotating block 507, the rotating block 507 is fitted with the clamping plate 505, the clamping rod 506 is connected to the fixed plate 504, and the two sides of the fixed frame 501 are symmetrically mounted with clamping plates 508. Figure 3 , 4As shown, by rotating the rotating block 507, the rotating block 507 no longer squeezes the clamping plate 505, so that the clamping plate 505 no longer squeezes the clamping rod 506, so that the clamping rod 506 is initially separated from the clamping groove 12, and then the fixing frame 501 is pulled by using a tool to separate the clamping plate 508 on the fixing frame 501 from the clamping groove 13, so that the pulley 4 can be disassembled. At the same time, during installation, the clamping groove 11 on the pulley 4 is aligned with the clamping rod 10 on the driven wheel body 1 and inserted, so as to push the pulley 4 so that the hole in the middle of the pulley 4 is in contact with the rotating shaft 6. After the pulley 4 is pushed to a suitable position so as to be in contact with the driven wheel body 1, the clamping plate 508 is clamped together with the clamping groove 13 by a tool. After that, by pushing the card rod 506, the card rod 506 is engaged with the card slot 12, and then by rotating the rotating block 507, the rotating block 507 is lowered, which will squeeze the clamping plate 505. After the clamping plate 505 is squeezed, the card rod 506 will be clamped, so that the card rod 506 is stable, thereby completing the installation of the pulley 4, thereby improving the installation efficiency of the pulley 4. At the same time, both sides of the clamping plate 508 and the clamping groove 13 are installed with a rubber layer with large friction force, so that the clamping plate 508 and the clamping groove 13 can be more tightly engaged. At the same time, the clamping plate 505 is made of rubber, so that the clamping plate 505 can be deformed after being squeezed by the rotating block 507, so that the card rod 506 can be clamped.

[0031] A clamping rod 10 is symmetrically installed on one side surface of the driven wheel body 1, and a clamping groove 11 is symmetrically opened inside the pulley 4. The clamping rod 10 is clamped and connected with the clamping groove 11. Clamping grooves 12 are symmetrically opened on both sides of the clamping rod 10. The clamping grooves 12 are clamped and connected with the clamping rod 506. Clamping grooves 13 are symmetrically opened on both sides of the clamping groove 12. The clamping grooves 13 are clamped and connected with the clamping plate 508. Figure 2 , 3 As shown, the engagement of the engagement rod 10 with the engagement groove 11 facilitates the installation of the pulley 4, and the engagement of the engagement groove 12 with the engagement rod 506, and the engagement of the engagement groove 13 with the engagement plate 508, so that the stability of the pulley 4 after installation can be improved.

[0032] A dustproof plate 14 is symmetrically installed on the other side surface of the driven wheel body 1, and a connecting plate 15 is fixedly connected to one side surface of the dustproof plate 14. A limiting rod 16 is penetrated and connected to one side surface of the connecting plate 15. A spring 17 is sleeved on the side surface of the limiting rod 16 away from the connecting plate 15. One side surface of the spring 17 is fixedly connected to the connecting plate 15, and the other side surface of the spring 17 is fixedly connected to the limiting rod 16. The side surface of the connecting plate 15 away from the spring 17 is fitted and connected to the driven wheel body 1. A limiting groove 18 is symmetrically provided on one side surface of the driven wheel body 1 close to the connecting plate 15, and the limiting groove 18 is engaged and connected with the limiting rod 16. Figure 5 As shown, by pulling the limit rod 16, the limit rod 16 is separated from the limit groove 18, so that the dustproof plate 14 can be taken out. During installation, after the slider on the dustproof plate 14 is engaged and slid with the slide groove inside the inner cavity 9, after the dustproof plate 14 is moved to a suitable position, the limit rod 16 is loosened so that the limit rod 16 returns to its original position under the action of the spring 17, so that the limit rod 16 is engaged with the limit groove 18, thereby completing the installation of the dustproof plate 14, thereby reducing the entry of dust into the inner cavity 9. At the same time, the spring 17 is a rubber composite spring in the prior art, and the elastic force of the rubber composite spring is relatively large, so that the limit rod 16 can be more tightly engaged with the limit groove 18 under the action of the spring 17.

[0033] Working principle: Before using this easy-to-remove clutch pulley, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 5 As shown, first, when the pulley 4 needs to be replaced, by rotating the rotating block 507, the rotating block 507 no longer presses the clamping plate 505, so that the clamping plate 505 no longer presses the clamping rod 506, so that the clamping rod 506 is initially separated from the clamping groove 12, and then by using a tool to pull the fixing frame 501, the clamping plate 508 on the fixing frame 501 is separated from the clamping groove 13, so that the pulley 4 can be disassembled. At the same time, when installing, the clamping groove 11 on the pulley 4 is aligned with the clamping rod 10 on the driven wheel body 1 and inserted, so as to push the pulley 4, so that The hole in the middle of the pulley 4 is fitted with the rotating shaft 6, and after the pulley 4 is pushed to a suitable position to fit with the driven wheel body 1, the clamping plate 508 and the clamping groove 13 are clamped together by a tool, and then the clamping rod 506 is pushed to make the clamping rod 506 and the clamping groove 12 engage, and then the rotating block 507 is rotated to make the rotating block 507 descend, which will squeeze the clamping plate 505. After the clamping plate 505 is squeezed, the clamping rod 506 will be clamped, so that the clamping rod 506 is stabilized, thereby completing the installation of the pulley 4, thereby improving the installation efficiency of the pulley 4.

[0034] Secondly, by pulling the limit rod 16 to separate the limit rod 16 from the limit groove 18, the dustproof plate 14 can be taken out. During installation, the slider on the dustproof plate 14 is engaged with the slide groove inside the inner cavity 9 and the dustproof plate 14 is moved to a suitable position. The limit rod 16 is loosened so that the limit rod 16 returns to its original position under the action of the spring 17, so that the limit rod 16 is engaged with the limit groove 18, thereby completing the installation of the dustproof plate 14, thereby reducing the amount of dust entering the inner cavity 9.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clutch pulley that is easy to disassemble, comprising a driven wheel body (1), wherein an inner cavity (9) is provided inside the driven wheel body (1); A driving wheel body (2) is installed inside the driven wheel body (1), a fixing nail (3) is symmetrically installed on one side surface of the driving wheel body (2), a pulley (4) is sleeved on one side surface of the driven wheel body (1), a rotating shaft (6) is fixedly connected to the other side surface of the driving wheel body (2), stabilizing blocks (7) are symmetrically installed on both sides of the rotating shaft (6), and protrusions (8) are symmetrically installed on both sides of the stabilizing block (7), and the protrusions (8) are snap-fitted and connected with the inner cavity (9); It is characterized in that Also includes: The two sides of the pulley (4) are symmetrically provided with fixing components (5); The fixing assembly (5) comprises a fixing frame (501) fixedly connected to the pulley (4), and a fixing block (502) is connected through the middle of the top surface of the fixing frame (501); A thread groove (503) is provided inside the fixing block (502), and a fixing plate (504) is fixedly installed inside the thread groove (503).

2. The easily disassembled clutch pulley according to claim 1, characterized in that: A clamping plate (505) is symmetrically mounted on the top surface of the fixed plate (504), a clamping rod (506) is fitted inside the clamping plate (505), a rotating block (507) is threadedly connected to the top of the threaded groove (503), the rotating block (507) is fitted and connected to the clamping plate (505), and the clamping rod (506) is connected to the fixed plate (504) through.

3. The easily disassembled clutch pulley according to claim 1, characterized in that: The fixing frame (501) is symmetrically provided with clamping plates (508) on both sides.

4. The easily disassembled clutch pulley according to claim 1, characterized in that: A clamping rod (10) is symmetrically mounted on one side surface of the driven wheel body (1), and a clamping groove (11) is symmetrically opened inside the pulley (4), and the clamping rod (10) is clamped and connected with the clamping groove (11).

5. The easily disassembled clutch pulley according to claim 4, characterized in that: A clamping groove (12) is symmetrically provided on both sides of the clamping rod (10), and the clamping groove (12) is clamped and connected with the clamping rod (506). A clamping groove (13) is symmetrically provided on both sides of the clamping groove (12), and the clamping groove (13) is clamped and connected with the clamping plate (508).

6. The easily disassembled clutch pulley according to claim 1, characterized in that: A dustproof plate (14) is symmetrically mounted on the other side surface of the driven wheel body (1), a connecting plate (15) is fixedly connected to one side surface of the dustproof plate (14), a limiting rod (16) is passed through one side surface of the connecting plate (15), a spring (17) is sleeved on the side surface of the limiting rod (16) away from the connecting plate (15), one side surface of the spring (17) is fixedly connected to the connecting plate (15), the other side surface of the spring (17) is fixedly connected to the limiting rod (16), and the side surface of the connecting plate (15) away from the spring (17) is fitted and connected to the driven wheel body (1).

7. The easily disassembled clutch pulley according to claim 1, characterized in that: A limiting groove (18) is symmetrically provided on a side surface of the driven wheel body (1) close to the connecting plate (15), and the limiting groove (18) is snap-fitted and connected to the limiting rod (16).

Images