Self-positioning automobile synchronizer

Abstract

The utility model belongs to the technical field of automobile synchronizers, and particularly relates to a self-positioning automobile synchronizer which comprises a supporting framework, a movable block is arranged outside the supporting framework, an inner circular ring is fixedly arranged in the supporting framework, four strip-shaped grooves are formed in the front face of the supporting framework, a limiting rail is arranged on the front face of the supporting framework, and the movable block is arranged on the movable block. Through the arrangement of the telescopic rods, the limiting columns, the limiting grooves and the sliding blocks, the movable blocks can move when the extrusion force between the movable blocks and the inner wall of the outer circular ring is reduced, the movable blocks can drive the two limiting columns at the bottom when moving, the limiting grooves are formed in the outer circular ring, and therefore the movable blocks can move to the inner wall of the outer circular ring; the limiting columns move in the limiting grooves, the limiting grooves can limit the limiting columns, therefore, limiting of the moving blocks is achieved, transverse movement of the moving blocks is prevented, the situation that pressure buffering cannot be achieved due to the fact that the first springs incline when equipment runs can be effectively eradicated through the arrangement of the limiting columns and the telescopic rods, and the pressure buffering quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile synchronizers, in particular to a self-positioning automobile synchronizer. Background Art

[0002] The function of the automobile synchronizer is to synchronize the coupling sleeve with the gear ring to be meshed quickly, shorten the shifting time, prevent the coupling sleeve from meshing with the gear ring to be meshed before synchronization and causing impact between the coupling teeth, make the shifting smoother, and reduce the gear shifting noise. The function of the synchronizer is very obvious. That is, when shifting, the speed of the gear at the power output end is faster than the gear that is about to be shifted into this gear. If there is no synchronizer, forcing a slow-rotating gear into a high-speed rotating gear will definitely cause tooth knocking. Since the traditional synchronizer is subjected to a large extrusion force inside during use, the internal parts of the synchronizer are greatly worn and the service life is short. Therefore, patent CN215980537U proposes "a self-positioning lock pin type automobile synchronizer". By setting a pressure relief component, when the movable block rotates, the internal moving block of the pressure relief component is extended and retracted, the spring is squeezed, and the pressure on the outer wall of the outer ring is relieved, the friction between the outer ring and the movable block is reduced, and the service life of the movable block is extended.

[0003] However, in this solution, there is no limiting structure in the pressure relief assembly, and pressure relief is achieved only through the cooperation between the spring and the moving block. Since the moving block will generate friction with the moving block when it rotates, the spring will be skewed when the moving block and the moving block are fitted together, and the pressure relief effect is poor. Therefore, a self-positioning automobile synchronizer is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a self-positioning automobile synchronizer.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a self-positioning automobile synchronizer, including a supporting frame, a movable block is provided on the outside of the supporting frame, an inner ring is fixedly provided inside the supporting frame, four strip grooves are provided on the front of the supporting frame, a limiting track is provided on the front of the supporting frame, an outer ring is sleeved on the outside of the movable block, a plurality of mounting cavities are provided on the outer ring, two limiting grooves are provided on the bottom inner wall of the mounting cavity, a pressure relief assembly is provided in the mounting cavity, two placement grooves are provided on the top of the mounting cavity, a clamping groove is provided on one side inner wall of the two placement grooves, and a blocking structure is clamped on the top of the mounting cavity.

[0006] As a further description of the above technical solution:

[0007] The pressure relief assembly includes a telescopic rod fixedly connected to the inner wall of the installation cavity, a moving block is fixedly provided at the output end of the telescopic rod, the bottom of the moving block is movably connected to a limiting groove, a first spring is sleeved on the telescopic rod, one end of the first spring is in contact with one side of the moving block, and the other end of the first spring is fixedly connected to the inner wall of the installation cavity.

[0008] As a further description of the above technical solution:

[0009] Two limiting columns are fixedly provided at the bottom of the moving block, and the two limiting columns are movably connected to the two limiting grooves.

[0010] As a further description of the above technical solution:

[0011] Slide blocks are fixedly provided on both sides of the limiting column, and sliding grooves are provided on the inner walls on both sides of the limiting groove, and the slide blocks and the sliding grooves are movably connected.

[0012] As a further description of the above technical solution:

[0013] The blocking structure includes a baffle plate that is clamped with the installation cavity, and receiving grooves are provided on both sides of the baffle plate. Two second springs are fixedly provided on the inner wall of one side of the receiving groove, and the same clamping plate is fixedly provided at one end of the two second springs. A pin hole is provided on the upper surface of the clamping plate, and the clamping plate and the receiving groove are movably connected, and the clamping plate and the clamping slot are adapted to each other.

[0014] As a further description of the above technical solution:

[0015] A groove is arranged on the top of the storage slot, a clamping block is fixedly arranged on the top of the clamping plate, and the clamping block is movably connected to the groove.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, the self-positioning automobile synchronizer, by setting a telescopic rod, a limit column, a limit groove and a slider, the moving block will move when the extrusion pressure between the active block and the inner wall of the outer ring is reduced. When the moving block moves, it will drive the two limit columns at the bottom. The limit columns move in the limit grooves. The limit grooves can limit the limit columns, thereby limiting the moving block and preventing the moving block from moving laterally. The setting of the limit column and the telescopic rod can effectively prevent the first spring from being skewed during the operation of the equipment, resulting in the inability to relieve pressure, thereby ensuring the quality of pressure relief.

[0018] 2. Compared with the prior art, the self-positioning automobile synchronizer, by setting a baffle, a receiving groove, a second spring, a card plate, a placement groove and a card slot, when the components in the installation cavity are damaged and need to be repaired or replaced, a screwdriver is inserted into the pin hole on the upper surface of the baffle, and then the two baffles are pulled toward each other, the baffle squeezes the second spring, and when one end of the baffle is out of the card slot, the baffle can be pulled upward to be taken out, thereby realizing rapid disassembly of the baffle and facilitating subsequent replacement of components in the installation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a self-positioning automobile synchronizer proposed by the utility model;

[0020] Figure 2 This is a plan view of a self-positioning automobile synchronizer proposed by the utility model after removing the blocking structure;

[0021] Figure 3 This is a three-dimensional structural schematic diagram of the inner and outer rings of a self-positioning automobile synchronizer proposed by the utility model;

[0022] Figure 4 This is an enlarged structural schematic diagram of part A in a self-positioning automobile synchronizer proposed by the utility model;

[0023] Figure 5 This is an enlarged structural schematic diagram of part B in a self-positioning automobile synchronizer proposed by the utility model;

[0024] Figure 6 It is a front cutaway perspective schematic diagram of a blocking structure in a self-positioning automobile synchronizer proposed by the utility model;

[0025] Figure 7 The utility model is a three-dimensional structural schematic diagram of a moving block in a self-positioning automobile synchronizer.

[0026] Legend:

[0027] 1. Support frame; 2. Movable block; 3. Inner ring; 4. Strip groove; 5. Limiting track; 6. Outer ring; 7. Installation cavity; 8. Limiting groove; 9. Pressure relief assembly; 901. Telescopic rod; 902. First spring; 903. Moving block; 904. Limiting column; 905. Slider; 10. Placement groove; 11. Card slot; 12. Blocking structure; 121. Baffle; 122. Storage groove; 123. Second spring; 124. Card plate. 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 described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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] Reference Figures 1 to 7 The utility model provides a self-positioning automobile synchronizer: comprising a support frame 1, a movable block 2 is arranged outside the support frame 1, an inner ring 3 is fixed inside the support frame 1, four strip grooves 4 are arranged on the front of the support frame 1, a limiting track 5 is arranged on the front of the support frame 1, an outer ring 6 is sleeved outside the movable block 2, a plurality of mounting cavities 7 are arranged on the outer ring 6, and two limiting grooves 8 are arranged on the bottom inner wall of the mounting cavity 7;

[0030] Reference Figure 4 In order to achieve the purpose of pressure relief, a pressure relief component 9 is provided in the installation cavity 7. The pressure relief component 9 includes a telescopic rod 901 fixedly connected to the inner wall of the installation cavity 7. A moving block 903 is fixedly provided at the output end of the telescopic rod 901. The bottom of the moving block 903 is movably connected to the limiting groove 8. Two limiting columns 904 are fixedly provided at the bottom of the moving block 903. The two limiting columns 904 are movably connected to the two limiting grooves 8. Slide blocks 905 are fixedly provided on both sides of the limiting columns 904. Slide grooves are provided on the inner walls of both sides of the limiting groove 8. The slide blocks 905 and the slide grooves are movably connected. Then, a first spring 902 is sleeved on the telescopic rod 901, one end of the first spring 902 is fitted with one side of the moving block 903, and the other end of the first spring 902 is fixedly connected to the inner wall of the installation cavity 7. The setting of the pressure relief component 9 can relieve the pressure on the outer wall of the outer ring 6, reduce the friction between the outer ring 6 and the movable block 2, and extend the service life of the movable block 2. By setting the limit column 904 and the telescopic rod 901, it can effectively prevent the first spring 902 from tilting during the operation of the equipment, resulting in the inability to relieve pressure, thereby ensuring the quality of pressure relief;

[0031] Reference Figure 6In order to achieve the purpose of reducing the use cost, two placement grooves 10 are provided at the top of the installation cavity 7, and a card slot 11 is provided on the inner wall of one side of the two placement grooves 10. A blocking structure 12 is clamped on the top of the installation cavity 7. The blocking structure 12 includes a baffle 121 clamped with the installation cavity 7, and storage grooves 122 are provided on both sides of the baffle 121. Two second springs 123 are fixedly provided on the inner wall of one side of the storage groove 122. One end of the two second springs 123 is fixedly provided with the same card plate 124, and a pin hole is provided on the upper surface of the card plate 124. The card plate 124 and the storage groove 122 are movably connected. The top of the storage groove 122 is provided with a groove, and a card block is fixedly provided on the top of the card plate 124. The card block and the groove are movably connected. The card plate 124 and the card slot 11 are adapted. The setting of the blocking structure 12 can facilitate the subsequent replacement and maintenance of equipment parts by relevant personnel. When problems occur with the equipment, there is no need to replace the entire equipment, thereby reducing the use cost.

[0032] Working principle: When the car shifts gears, the internal shaft of the inner ring 3 rotates, and the supporting frame 1 and the movable block 2 rotate at the same speed. During the rotation of the movable block 2, the movable block 903 can effectively reduce the extrusion force between the movable block 2 and the inner wall of the outer ring 6, thereby extending the service life of the synchronizer. When the movable block 903 moves, it will drive the two limiting columns 904 at the bottom. The limiting columns 904 move in the limiting groove 8. The limiting groove 8 can limit the limiting columns 904, thereby realizing the limitation of the movable block 903 and preventing the movable block 903 from moving laterally. The setting of the limit column 904 and the telescopic rod 901 can effectively prevent the first spring 902 from tilting during the operation of the equipment, resulting in the inability to relieve pressure, thereby ensuring the quality of pressure relief. When the components in the installation cavity 7 are damaged and need to be repaired or replaced, insert the screwdriver into the pin hole on the upper surface of the baffle 121, and then pull the two baffles 121 in a direction close to each other. The baffle 121 squeezes the second spring 123. When one end of the baffle 121 is out of the slot 11, the baffle 121 can be pulled upward and taken out, and the components in the installation cavity 7 can be replaced.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can 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 should be included in the protection scope of the present invention.

Claims

1. A self-positioning automobile synchronizer, comprising a support frame (1), characterized in that: A movable block (2) is provided on the outside of the support frame (1), an inner ring (3) is fixedly provided inside the support frame (1), four strip grooves (4) are provided on the front of the support frame (1), a limiting track (5) is provided on the front of the support frame (1), an outer ring (6) is sleeved on the outside of the movable block (2), a plurality of mounting cavities (7) are provided on the outer ring (6), two limiting grooves (8) are provided on the inner wall at the bottom of the mounting cavity (7), a pressure relief component (9) is provided in the mounting cavity (7), two placement grooves (10) are provided on the top of the mounting cavity (7), a clamping groove (11) is provided on the inner wall of one side of the two placement grooves (10), and a blocking structure (12) is clamped on the top of the mounting cavity (7).

2. A self-positioning automobile synchronizer according to claim 1, characterized in that: The pressure relief assembly (9) comprises a telescopic rod (901) fixedly connected to the inner wall of the installation cavity (7); a moving block (903) is fixedly provided at the output end of the telescopic rod (901); the bottom of the moving block (903) is movably connected to the limit groove (8); a first spring (902) is sleeved on the telescopic rod (901); one end of the first spring (902) is in contact with one side of the moving block (903); and the other end of the first spring (902) is fixedly connected to the inner wall of the installation cavity (7).

3. A self-positioning automobile synchronizer according to claim 2, characterized in that: Two limiting columns (904) are fixedly provided at the bottom of the moving block (903), and the two limiting columns (904) are movably connected to the two limiting grooves (8).

4. A self-positioning automobile synchronizer according to claim 3, characterized in that: Slide blocks (905) are fixedly provided on both sides of the limiting column (904), and slide blocks are provided on both side inner walls of the limiting groove (8), and the slide blocks (905) are movably connected to the slide blocks.

5. The self-positioning automobile synchronizer according to claim 1, characterized in that: The blocking structure (12) comprises a baffle (121) that is clamped with the installation cavity (7); receiving grooves (122) are provided on both sides of the baffle (121); two second springs (123) are fixedly provided on an inner wall of one side of the receiving groove (122); one end of the two second springs (123) is fixedly provided with a same clamping plate (124); a pin hole is provided on the upper surface of the clamping plate (124); the clamping plate (124) and the receiving groove (122) are movably connected; and the clamping plate (124) and the clamping groove (11) are adapted to each other.

6. A self-positioning automobile synchronizer according to claim 5, characterized in that: A groove is provided at the top of the storage slot (122), a clamping block is fixedly provided at the top of the clamping plate (124), and the clamping block and the groove are movably connected.

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