Belt pulley assembly for transmission of automobile air conditioner clutch
By designing a detachable gear carrier and mounting bracket connection method, and adopting anti-rotation limiting components and lubrication structures, the high maintenance cost and wear problems of traditional pulley assemblies are solved, achieving stable meshing and extended service life.
Patent Information
- Application Number
- CN202511294618.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2025-11-18
AI Technical Summary
In traditional automotive air conditioning clutch transmission systems, the gear carrier and mounting bracket of the pulley assembly are an integrated structure, resulting in high maintenance costs and a lack of effective lubrication measures, which affects the meshing effect and service life.
A pulley assembly for automotive air conditioning clutch transmission was designed. The gear frame and mounting bracket are detachably connected. It adopts anti-rotation limiting components and lubrication structure, including limiting groove, limiting block, retaining ring and oil reservoir, to ensure meshing stability and reduce wear.
It reduces maintenance costs, improves meshing stability and service life, and extends the service life of pulleys.
Smart Images
Figure CN120969446A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of belt pulley, in particular to a belt pulley assembly for automobile air conditioner clutch transmission. BACKGROUND
[0002] In the automobile air conditioner clutch transmission system, the belt pulley assembly is one of the key components. The gear frame and the mounting frame of the traditional belt pulley assembly are usually in an integrated structure or a fixed connection mode. When the teeth on the gear frame are severely worn, the mounting frame and the gear frame need to be replaced at the same time, which results in high maintenance cost of the belt pulley.
[0003] Moreover, the existing belt pulley assembly is not perfect in structure for preventing the rotation of the gear frame, and the gear frame is prone to rotating relative to the mounting frame, which affects the meshing effect of the teeth and the surface rack of the belt, and further affects the stability and reliability of the automobile air conditioner clutch transmission.
[0004] In addition, during the rotation of the belt pulley, the teeth and the surface of the belt have large friction, and there is a lack of effective lubrication measures, which will accelerate the wear of the teeth and the belt and reduce the service life. SUMMARY
[0005] The purpose of the present application is to provide a belt pulley assembly for automobile air conditioner clutch transmission to solve the problems raised in the background.
[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a belt pulley assembly for automobile air conditioner clutch transmission, comprising a mounting frame, the mounting frame is a "T" shaped circular plate, one end of the mounting frame is sleeved with a gear frame, the outer ring surface of the gear frame is integrally formed with a plurality of teeth, a rotation preventing limiting piece is arranged between the mounting frame and the gear frame to prevent the gear frame from rotating after being sleeved on the mounting frame, a blocking ring is sleeved on one end of the mounting frame, the gear frame is clamped between the other end plate body of the mounting frame and the blocking ring, a connecting piece penetrating through the gear frame is arranged between the mounting frame and the blocking ring, an installation groove is formed on the surface of the blocking ring, a limiting assembly is arranged in the installation groove, the limiting assembly limits the connecting piece on the blocking ring, lubricating oil is filled in the other end side plate of the mounting frame, and the lubricating oil seeps out to the surface of the teeth through the oil seepage hole formed on the surface of the mounting frame.
[0007] Preferably, the rotation preventing limiting piece comprises a limiting groove formed in the inner ring surface of the gear frame and a limiting block fixed on the outer ring surface of the mounting frame, the limiting groove and the limiting block are both provided with a plurality of limiting grooves and limiting blocks, the plurality of limiting grooves and limiting blocks are arranged in a circular manner around the center axis of the mounting frame, the gear frame is sleeved on the mounting frame, the limiting block is inserted into the corresponding limiting groove, and a connecting disc is fixed in the inner ring opening of the mounting frame.
[0008] Preferably, one end of the mounting bracket is provided with a side groove on the outer ring surface. The side groove is an annular groove. The retaining ring is sleeved in the side groove. The outer ring diameter of the retaining ring is equal to the outer ring diameter of the other end of the mounting bracket. Rubber pads are fixed on the opposite surfaces of the retaining ring and the other end of the mounting bracket. The two rubber pads are respectively clamped between the plate body at the other end of the mounting bracket and the gear bracket and between the retaining ring and the gear bracket to generate elastic deformation.
[0009] Preferably, the connecting member includes a through hole opened on the surface of the gear bracket, a limiting handle fixed on the surface of the plate body at the other end of the mounting bracket, and a slot opened on the surface of the retaining ring facing the mounting bracket. There are multiple through holes. The limiting handle, the slot and the through hole correspond to each other one by one. The limiting handle passes through the through hole and then is inserted into the slot.
[0010] Preferably, the mounting groove is an annular groove. There are multiple groups of limiting components. Each group of limiting components matches a limiting handle to limit the other end of the limiting handle in the slot.
[0011] Preferably, the limiting component includes a socket opened on the inner ring surface of the mounting groove, a plug handle inserted into the socket, and a pushing ring inserted into the mounting groove. One end of the plug handle extending towards the inner side of the mounting groove is provided with an inclined surface. After the pushing ring pushes the plug handle, the other end of the plug handle is inserted into the positioning hole opened on the surface of the limiting handle.
[0012] Preferably, multiple sliding grooves are opened on the surface of the retaining ring facing away from the mounting bracket. The sliding grooves and the sockets correspond to each other one by one and the sliding grooves communicate with the sockets. A traction piece fixed on the surface of the plug handle is slidably connected inside the sliding grooves. A rubber support block is fixed between the traction piece and the sliding grooves. When pushing the pushing ring and the plug handle, the plug handle pulls the traction piece to squeeze the rubber support block to generate elastic deformation. After the pushing ring is withdrawn from the mounting groove, the rubber support block rebounds to push the traction piece to pull the plug handle to move into the mounting groove.
[0013] Preferably, a clamping groove is opened at one end of the pushing ring inserted into the mounting groove. The clamping groove is an annular groove with a round mouth as the break. An introduction ring is fixed inside the mounting groove. One end of the introduction ring is sleeved and fixed with a rubber ring. The rubber ring is a ring with a round cross-section. Both the introduction ring and the rubber ring are inserted into the clamping groove. The end face diameter of the rubber ring is greater than the groove width of the clamping groove.
[0014] Preferably, a reserved groove is opened at the other end of the pushing ring. The reserved groove is an annular groove. Multiple pull rods are fixed between the inner ring surface and the outer ring surface of the reserved groove.
[0015] Preferably, an oil storage cavity is opened in the plate body at the other end of the mounting bracket. The oil storage cavity is an annular groove. An oil leakage hole communicates with the oil storage cavity. A cotton cover is fixed inside the oil storage cavity. The cotton cover is an annular plate with a "C" - shaped cross-section. The cotton cover covers the oil leakage hole. Multiple cotton wicks are fixed on the surface of the cotton cover. The cotton wicks are inserted into the corresponding oil leakage holes. An oil injection hole is opened on the surface of the plate body at the other end of the mounting bracket. A rubber block is fixed inside the oil injection hole.
[0016] Compared with the prior art, the beneficial effects of the present invention are:
[0017] The pulley assembly for automotive air conditioning clutch transmission proposed in this invention features a gear carrier that can be removed and replaced from the mounting bracket. When the teeth are severely worn, only the gear carrier with the teeth needs to be replaced, without replacing the mounting bracket, which greatly reduces the maintenance cost of the pulley.
[0018] A mounting groove and a limiting component are provided on the surface of the retaining ring. The push ring pushes the insert handle, causing it to insert into the positioning hole on the surface of the limiting handle. This limits the other end of the limiting handle in the slot, thus securing the connector to the retaining ring and preventing it from detaching from the end of the mounting bracket. This ensures that the other end plate of the mounting bracket and the mounting bracket together effectively limit the meshing of the belt teeth. Simultaneously, a rubber ring is secured in the slot, preventing the push ring from detaching from the mounting groove and ensuring stable pushing of the push ring into the positioning hole. Furthermore, when the gear frame needs to be replaced, the push ring can be pulled out of the mounting groove by squeezing the lever, allowing the insert handle to be removed from the positioning hole, thus disconnecting the retaining ring and the limiting handle for easy disassembly and replacement of the gear frame.
[0019] An oil reservoir is set in the side plate at the other end of the mounting bracket. Lubricating oil seeps out from the oil seepage hole to the tooth surface. The cotton cover in the oil reservoir covers the oil seepage hole, and the cotton core is inserted into the oil seepage hole. Before installation, lubricating oil can be injected into the oil reservoir using a syringe. After the lubricating oil permeates the cotton cover and cotton core, it seeps out and drips onto the tooth surface. During the rotation of the tooth, the lubricating oil is wiped on the belt surface, reducing the wear of the tooth and belt and extending the service life. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the present invention;
[0021] Figure 2 for Figure 1 Sectional view of the structure at point AA;
[0022] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point B;
[0023] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point C;
[0024] Figure 5 This is a schematic diagram of the mounting frame structure of the present invention;
[0025] Figure 6 This is a schematic diagram of the gear carrier structure of the present invention;
[0026] Figure 7 This is a schematic diagram of the retaining ring structure of the present invention;
[0027] Figure 8This is a schematic diagram of the push ring structure of the present invention.
[0028] In the diagram: 1. Mounting bracket; 2. Gear frame; 3. Tooth; 4. Limiting groove; 5. Limiting block; 6. Side groove; 7. Retaining ring; 8. Rubber pad; 9. Through hole; 10. Limiting handle; 11. Slot; 12. Mounting groove; 13. Insertion port; 14. Push ring; 15. Slide groove; 16. Traction plate; 17. Rubber support block; 18. Positioning hole; 19. Slot; 20. Guide ring; 21. Rubber ring; 22. Reserved groove; 23. Pull rod; 24. Oil storage chamber; 25. Oil seepage hole; 26. Cotton cover; 27. Cotton core; 28. Oil injection hole; 29. Rubber block; 30. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0030] Please see Figures 1 to 8 This invention provides a technical solution: a pulley assembly for an automotive air conditioning clutch transmission, comprising a mounting frame 1, the mounting frame 1 being a "T"-shaped annular plate, a gear frame 2 being fitted onto one end of the mounting frame 1, the outer annular surface of the gear frame 2 being integrally formed with multiple teeth 3, an anti-rotation limiting component being provided between the mounting frame 1 and the gear frame 2 to prevent the gear frame 2 from rotating after being fitted onto the mounting frame 1, the anti-rotation limiting component including a limiting groove 4 formed on the inner annular surface of the gear frame 2, and a limiting block 5 fixed on the outer annular surface of the mounting frame 1, both the limiting groove 4 and the limiting block 5 being provided in multiples, the multiple limiting grooves 4 and the limiting blocks 5 being arranged circumferentially around the mounting frame 1 as the central axis, after the gear frame 2 is fitted onto the mounting frame 1, the limiting block 5 is inserted into the corresponding limiting groove 4, and a connecting disc is fixed in the inner annular opening of the mounting frame 1.
[0031] In use, the gear carrier 2 is designed to be removable and replaceable from the mounting bracket 1. This allows for easy replacement of the gear carrier 2 with the teeth 3 installed when the teeth 3 are severely worn, without needing to replace the mounting bracket 1, thus reducing the maintenance cost of the pulley. Furthermore, after the gear carrier 2 is fitted onto the mounting bracket 1, the assembly and limiting of the limiting groove 4 and the limiting block 5 prevent the gear carrier 2 from rotating on the mounting bracket 1, thereby ensuring that the mounting bracket 1 drives the gear carrier 2 to rotate synchronously after installation, so that the teeth 3 mesh with the rack on the belt surface.
[0032] To further limit the position of gear carrier 2, the following was proposed:
[0033] One end of the mounting bracket 1 is fitted with a retaining ring 7. The gear frame 2 is clamped between the other end plate of the mounting bracket 1 and the retaining ring 7. One end of the mounting bracket 1 has a side groove 6 on its outer ring surface. The side groove 6 is an annular groove. The retaining ring 7 is fitted in the side groove 6. The outer ring diameter of the retaining ring 7 is equal to the outer ring diameter of the other end of the mounting bracket 1. Rubber pads 8 are fixed on the opposing surfaces of the retaining ring 7 and the other end of the mounting bracket 1. The two rubber pads 8 are clamped between the other end plate of the mounting bracket 1 and the gear frame 2, and between the retaining ring 7 and the gear frame 2, respectively, to produce elastic deformation. A connecting member that passes through the gear frame 2 is provided between the mounting bracket 1 and the retaining ring 7. The connecting member includes a through hole 9 opened on the surface of the gear frame 2, a limiting handle 10 fixed on the surface of the other end plate of the mounting bracket 1, and a slot 11 opened on the surface of the retaining ring 7 facing the mounting bracket 1. There are multiple through holes 9. The limiting handle 10, the slot 11 and the through hole 9 correspond one-to-one. The limiting handle 10 passes through the through hole 9 and is inserted into the slot 11.
[0034] In use, when the gear frame 2 is fitted onto the mounting bracket 1, the limiting block 5 is inserted into the limiting groove 4, and the limiting handle 10 passes through the corresponding through hole 9. When the retaining ring 7 is fitted onto the side groove 6, the slot 11 is fitted onto the end of the corresponding limiting handle 10, further limiting the gear frame 2 from rotating on the mounting bracket 1 and preventing the retaining ring 7 from rotating at the end of the mounting bracket 1.
[0035] In order to ensure that the retaining ring 7 is fixed to one end of the mounting bracket 1 without falling off, the following was proposed:
[0036] The retaining ring 7 has a mounting groove 12 on its surface, and a limiting component is provided inside the mounting groove 12. The mounting groove 12 is an annular groove, and there are multiple sets of limiting components. Each set of limiting components matches a limiting handle 10, limiting the other end of the limiting handle 10 in the slot 11. The limiting component limits the connector on the retaining ring 7. The limiting component includes an insertion port 13 on the inner annular surface of the mounting groove 12, an insertion handle 14 inserted into the insertion port 13, and a push ring 15 inserted into the mounting groove 12. The end of the insertion handle 14 extending into the inner side of the mounting groove 12 has a bevel. After the push ring 15 pushes the insertion handle 14, the other end of the insertion handle 14 is inserted into the positioning hole 19 on the surface of the limiting handle 10. The side of the retaining ring 7 facing away from the mounting bracket 1 has multiple sliding grooves 16. The sliding grooves 16 correspond one-to-one with the insertion ports 13, and the sliding grooves 16 communicate with the insertion ports 13. A traction piece 17 fixed to the surface of the insertion handle 14 is slidably connected inside the sliding grooves 16. When a rubber support block 18, a push ring 15, and an insertion handle 14 are fixed between the guide plate 17 and the sliding groove 16, the insertion handle 14 pulls the traction plate 17 to compress the rubber support block 18, causing elastic deformation. After the push ring 15 is pulled out from the mounting groove 12, the rubber support block 18 rebounds and pushes the traction plate 17 to pull the insertion handle 14 into the mounting groove 12. A retaining groove 20 is provided at one end of the push ring 15 that is inserted into the mounting groove 12. The retaining groove 20 is an annular groove with a rounded cut. An inlet ring 21 is fixed inside the push ring 15. A rubber ring 22 is fitted and fixed at one end of the inlet ring 21. The rubber ring 22 is a circular ring with a circular cross-section. Both the inlet ring 21 and the rubber ring 22 are inserted into the slot 20. The end face diameter of the rubber ring 22 is larger than the slot width of the slot 20. A reserved slot 23 is opened at the other end of the push ring 15. The reserved slot 23 is an annular slot. Multiple pull rods 24 are fixed between the inner annular surface and the outer annular surface of the reserved slot 23.
[0037] When it is necessary to fix the retaining ring 7 to the end of the mounting bracket 1, the push ring 15 is inserted into the mounting groove 12. When the push ring 15 is pushed, the push ring 15 pushes the insertion handle 14 along the inclined surface. The insertion handle 14 drives the traction plate 17 to compress the rubber support block 18 until one end of the insertion handle 14 is inserted into the positioning hole 19. At this time, one end of the limiting handle 10 is restricted on the retaining ring 7, thereby preventing the retaining ring 7 from falling off the end of the mounting bracket 1. The other end plate of the mounting bracket 1 and the mounting bracket 1 together limit the belt that meshes with the teeth 3, and the rubber ring 22 is stuck in the slot 20. To prevent the push ring 15 from falling out of the mounting groove 12, and to ensure that the push ring 15 stably pushes the insert handle 14 into the positioning hole 19; when the gear frame 2 needs to be replaced, squeeze the pull rod 24 to pull the push ring 15 out of the mounting groove 12. At this time, the end of the insert handle 14 is unobstructed, and the rubber support block 18 rebounds and pulls the insert handle 14 back to the mounting groove 12, that is, one end of the insert handle 14 is pulled out of the positioning hole 19. At this time, the connection between the retaining ring 7 and the limiting handle 10 is removed. Pull the retaining ring 7 out of the side groove 6, and then pull the gear frame 2 out of the mounting bracket 1 for replacement.
[0038] In order to lubricate the surface of the tooth 3 when the pulley rotates, the following is proposed:
[0039] The other end side plate of the mounting bracket 1 contains lubricating oil, and the lubricating oil seeps out from the oil leakage hole 26 opened on the surface of the mounting bracket 1 to the surface of the tooth 3; an oil storage cavity 25 is opened in the other end plate body of the mounting bracket 1, and the oil storage cavity 25 is in the shape of an annular groove. The oil leakage hole 26 communicates with the oil storage cavity 25. A cotton cover 27 is fixed inside the oil storage cavity 25. The cotton cover 27 is a circular ring plate with a "匚" - shaped cross - section. The cotton cover 27 covers the oil leakage hole 26. A plurality of cotton cores 28 are fixed on the surface of the cotton cover 27, and the cotton cores 28 are inserted into the corresponding oil leakage holes 26. An oil injection hole 29 is opened on the surface of the other end plate body of the mounting bracket 1, and a rubber block 30 is fixed inside the oil injection hole 29.
[0040] Before installing the mounting bracket 1, inject lubricating oil into the oil storage cavity 25 with a syringe, and then install the mounting bracket 1. After the lubricating oil soaks the cotton cover 27 and the cotton cores 28, it seeps out from the oil injection hole 29, and the seeping lubricating oil drops on the surface of the tooth 3. During the rotation of the tooth 3 following the gear rack 2, the lubricating oil on the surface is wiped on the surface of the belt.
[0041] Usage method of the pulley assembly for an automotive air - conditioner clutch drive:
[0042] The gear carrier 2 is fitted onto one end of the mounting bracket 1, which is a T-shaped annular plate. Anti-rotation limiting components are provided between the mounting bracket 1 and the gear carrier 2. These components include multiple limiting grooves 4 formed on the inner annular surface of the gear carrier 2 and multiple limiting blocks 5 fixed to the outer annular surface of the mounting bracket 1. The limiting grooves 4 and limiting blocks 5 are arranged circumferentially around the mounting bracket 1. During the fitting of the gear carrier 2, the limiting blocks 5 are inserted into the corresponding limiting grooves 4 to prevent the gear carrier 2 from rotating after being fitted onto the mounting bracket 1. This ensures that the mounting bracket 1 can drive the gear carrier 2 to rotate synchronously after installation, allowing the multiple teeth 3 integrally formed on the outer annular surface of the gear carrier 2 to mesh with the rack on the belt surface. One end of the mounting bracket 1 has an annular groove 6 on its outer annular surface. A retaining ring 7 is fitted into the retaining ring 7, at which point the gear carrier 2 is clamped between the other end plate of the mounting bracket 1 and the retaining ring 7. The outer diameter of the retaining ring 7 is equal to the outer diameter of the other end of the mounting bracket 1. Rubber pads 8 are fixed to the opposing surfaces of the retaining ring 7 and the other end of the mounting bracket 1. The two rubber pads 8 are respectively clamped between the other end plate of the mounting bracket 1 and the gear frame 2, and between the retaining ring 7 and the gear frame 2, resulting in elastic deformation. A connecting member penetrating the gear frame 2 is provided between the mounting bracket 1 and the retaining ring 7. The connecting member includes multiple through-holes 9 on the surface of the gear frame 2, multiple limiting handles 10 fixed to the surface of the other end plate of the mounting bracket 1, and multiple slots 11 on the surface of the retaining ring 7 facing the mounting bracket 1. The limiting handles 10, slots 11, and through-holes 9 correspond one-to-one. When the gear frame 2 is fitted onto the mounting bracket 1, the limiting block 5 is inserted into the limiting groove 4, causing the limiting handle 10 to pass through the corresponding through-hole 9. After the retaining ring 7 is fitted onto the side groove 6, the slot 11 is fitted onto the end of the corresponding limiting handle 10, further preventing the gear frame 2 from rotating on the mounting bracket 1, while also preventing the retaining ring 7 from rotating at the end of the mounting bracket 1. The surface of the retaining ring 7 has an annular groove 12. Multiple sets of limiting components are provided, each set matched with a limiting handle 10, preparing to insert the push ring 15 into the mounting groove 12. One end of the push ring 15 inserted into the mounting groove 12 has a retaining groove 20 with an annular groove having a circular cross-section. An guide ring 21 is fixed inside the mounting groove 12. One end of the guide ring 21 is fitted with a rubber ring 22 with a circular cross-section, and the diameter of the end face of the rubber ring 22 is larger than the width of the groove 20, so that the rubber ring 22 can be secured in the groove 20, preventing the push ring 15 from falling out of the mounting groove 12.Insert the push ring 15 into the installation groove 12. When pushing the push ring 15, since the insertion handle 14 is inserted into the insertion socket 13 opened on the inner ring surface of the installation groove 12 in the limit component, and one end of the insertion handle 14 extending towards the inner side of the installation groove 12 is provided with an inclined surface, the push ring 15 squeezes the insertion handle 14 along the inclined surface. The insertion handle 14 drives the traction piece 17 fixed on its surface and slidingly connected inside the sliding groove 16 (a plurality of sliding grooves 16 are opened on the side of the retaining ring 7 facing away from the mounting bracket 1, and the sliding grooves 16 correspond to the insertion sockets 13 one by one and communicate with the insertion sockets 13) to squeeze the rubber support block 18 fixed between the traction piece 17 and the sliding groove 16 to generate elastic deformation until one end of the insertion handle 14 is inserted into the positioning hole 19 opened on the surface of the limit handle 10. At this time, one end of the limit handle 10 is restricted on the retaining ring 7, thereby preventing the retaining ring 7 from falling off from the end of the mounting bracket 1. The other end plate body of the mounting bracket 1 and the mounting bracket 1 jointly limit the belt meshed with the teeth 3. Before installing the mounting bracket 1, inject lubricating oil into the oil storage cavity 25 (the oil storage cavity 25 in the form of an annular groove is opened in the other end plate body of the mounting bracket 1) through the oil injection hole 29 opened on the surface of the other end plate body of the mounting bracket 1 by means of a syringe. After the oil injection is completed, the rubber block 30 fixed inside the oil injection hole 29 can prevent the lubricating oil from flowing out. An oil-absorbing cover 27 in the shape of a circular ring plate with a "C" cross-section is fixed inside the oil storage cavity 25. The oil-absorbing cover 27 covers and communicates with the oil leakage holes 26 of the oil storage cavity 25, and a plurality of wicks 28 inserted into the corresponding oil leakage holes 26 are fixed on the surface of the oil-absorbing cover 27. After the lubricating oil soaks the oil-absorbing cover 27 and the wicks 28, it seeps out from the oil leakage holes 26. The seeping lubricating oil drops on the surface of the teeth 3. During the rotation of the teeth 3 following the gear rack 2, the lubricating oil on the surface is wiped on the surface of the belt to achieve lubrication of the surface of the teeth 3. Pinch the pull rod 24 between the inner ring surface and the outer ring surface of the reserved groove 23 (a plurality of pull rods 24 are fixed between the inner ring surface and the outer ring surface of the reserved groove 23) opened at the other end of the push ring 15. Pull the push ring 15 out of the installation groove 12. At this time, the end of the insertion handle 14 is unobstructed, and the rubber support block 18 rebounds to pull the insertion handle 14 back towards the installation groove 12, that is, one end of the insertion handle is pulled out of the positioning hole 19. At this time, the connection between the retaining ring 7 and the limit handle 10 is revoked. Pull the retaining ring 7 out of the side groove 6, then pull the gear rack 2 out of the mounting bracket 1 and replace it with a new gear rack 2, and then reinstall it according to the above installation steps.
[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A belt pulley assembly for an automotive air conditioning clutch drive, comprising a mounting bracket (1), characterized in that: The mounting frame (1) is a T-shaped circular plate. A gear frame (2) is fitted on one end of the mounting frame (1). The outer ring surface of the gear frame (2) is integrally formed with multiple teeth (3). An anti-rotation limiting component is provided between the mounting frame (1) and the gear frame (2) to prevent the gear frame (2) from rotating after being fitted on the mounting frame (1). A retaining ring (7) is fitted on one end of the mounting frame (1). The gear frame (2) is clamped between the other end plate of the mounting frame (1) and the retaining ring (7). A connecting component that penetrates the gear frame (2) is provided between the mounting frame (1) and the retaining ring (7). An installation groove (12) is opened on the surface of the retaining ring (7). A limiting component is provided inside the installation groove (12). The limiting component limits the connecting component on the retaining ring (7). Lubricating oil is filled in the other end side plate of the mounting frame (1). The lubricating oil seeps out from the oil seepage hole (26) opened on the surface of the mounting frame (1) to the surface of the teeth (3).
2. The belt pulley assembly for automotive air conditioning clutch transmission according to claim 1, characterized in that: The anti-rotation limiting component includes a limiting groove (4) opened on the inner ring surface of the gear frame (2) and a limiting block (5) fixed on the outer ring surface of the mounting frame (1). There are multiple limiting grooves (4) and limiting blocks (5). The multiple limiting grooves (4) and limiting blocks (5) are arranged in a circle with the mounting frame (1) as the central axis. After the gear frame (2) is sleeved on the mounting frame (1), the limiting block (5) is inserted into the corresponding limiting groove (4). A connecting plate is fixed in the inner ring of the mounting frame (1).
3. The belt pulley assembly for automotive air conditioning clutch transmission according to claim 1, characterized in that: One end of the mounting bracket (1) has a side groove (6) on its outer ring surface. The side groove (6) is an annular groove. The retaining ring (7) is fitted in the side groove (6). The outer ring diameter of the retaining ring (7) is equal to the outer ring diameter of the other end of the mounting bracket (1). Rubber pads (8) are fixed on the opposite surfaces of the retaining ring (7) and the other end of the mounting bracket (1). The two rubber pads (8) are respectively clamped between the plate at the other end of the mounting bracket (1) and the gear frame (2) and between the retaining ring (7) and the gear frame (2) to produce elastic deformation.
4. The belt pulley assembly for automotive air conditioning clutch transmission according to claim 3, characterized in that: The connector includes a through-hole (9) on the surface of the gear frame (2), a limiting handle (10) fixed on the surface of the other end plate of the mounting bracket (1), and a slot (11) on the surface of the retaining ring (7) facing the mounting bracket (1). There are multiple through-holes (9), and the limiting handle (10), slot (11) and through-hole (9) correspond one to one. The limiting handle (10) passes through the through-hole (9) and is inserted into the slot (11).
5. A belt pulley assembly for an automotive air conditioning clutch transmission according to claim 4, characterized in that: The mounting groove (12) is an annular groove. Multiple sets of limiting components are provided. Each set of limiting components is matched with a limiting handle (10), which limits the other end of the limiting handle (10) in the slot (11).
6. The belt pulley assembly for automotive air conditioning clutch transmission according to claim 5, characterized in that: The limiting component includes a socket (13) opened on the inner annular surface of the mounting groove (12), a plug handle (14) inserted into the socket (13), and a push ring (15) inserted into the mounting groove (12). One end of the plug handle (14) extending into the inner side of the mounting groove (12) is provided with a bevel. After the push ring (15) pushes the plug handle (14), the other end of the plug handle (14) is inserted into the positioning hole (19) opened on the surface of the limiting handle (10).
7. A belt pulley assembly for automotive air conditioning clutch transmission according to claim 6, characterized in that: On one side of the retaining ring (7) facing away from the mounting bracket (1), a plurality of sliding grooves (16) are provided. The sliding grooves (16) correspond to the socket openings (13) one by one, and the sliding grooves (16) communicate with the socket openings (13). A traction piece (17) fixed on the surface of the insertion handle (14) is slidably connected inside the sliding groove (16). A rubber support block (18) is fixed between the traction piece (17) and the sliding groove (16). When pushing the push ring (15) and the insertion handle (14), the insertion handle (14) pulls the traction piece (17) to squeeze the rubber support block (18) to generate elastic deformation. After the push ring (15) is withdrawn from the mounting groove (12), the rubber support block (18) rebounds to push the traction piece (17) to pull the insertion handle (14) to move into the mounting groove (12).
8. A belt pulley assembly for an automotive air conditioning clutch transmission according to claim 6, characterized in that: At one end of the push ring (15) inserted into the mounting groove (12), a clamping groove (20) is provided. The clamping groove (20) is an annular groove with a round opening at the break. An introduction ring (21) is fixed inside the mounting groove (12). A rubber ring (22) is sleeved and fixed at one end of the introduction ring (21). The rubber ring (22) is a ring with a round cross-section. Both the introduction ring (21) and the rubber ring (22) are inserted into the clamping groove (20). The end face diameter of the rubber ring (22) is larger than the groove width of the clamping groove (20).
9. A belt pulley assembly for an automotive air conditioning clutch transmission according to claim 6, characterized in that: At the other end of the push ring (15), a reserved groove (23) is provided. The reserved groove (23) is an annular groove. A plurality of pull rods (24) are fixed between the inner ring surface and the outer ring surface of the reserved groove (23).
10. A belt pulley assembly for an automotive air conditioning clutch transmission according to claim 1, characterized in that: An oil storage cavity (25) is provided in the end plate body at the other end of the mounting bracket (1). The oil storage cavity (25) is an annular groove. An oil leakage hole (26) communicates with the oil storage cavity (25). A cotton cover (27) is fixed inside the oil storage cavity (25). The cotton cover (27) is a ring plate with a "匚"-shaped cross-section. The cotton cover (27) covers the oil leakage hole (26). A plurality of cotton wicks (28) are fixed on the surface of the cotton cover (27). The cotton wicks (28) are inserted into the corresponding oil leakage holes (26). An oil injection hole (29) is provided on the surface of the end plate body at the other end of the mounting bracket (1). A rubber block (30) is fixed inside the oil injection hole (29).