Vehicle commutator convenient to disassemble and maintain

Abstract

The utility model relates to the technical field of vehicle reversers, in particular to a vehicle reverser convenient to disassemble and maintain, which comprises a reverser body and a main shaft matched with the reverser body, a screwing cover is arranged above the main shaft, a rotating rod is arranged on the lower surface of the screwing cover, a driving block is sleeved on the surface of the rotating rod, and a T-shaped groove is annularly arranged on the side surface of the driving block. The inner wall of the T-shaped groove is slidably connected with a plurality of end blocks, the ends, close to the inner wall of the cavity, of the end blocks are slidably connected with sliding blocks in a clamped mode, and one ends of the sliding blocks slidably penetrate through the main shaft and extend into the first positioning groove. According to the utility model, the first through hole is clamped with the screwing cover, so that the rotating rod cannot rotate, the sliding block cannot shake in the first positioning groove, and the commutator body and the main shaft are firmly connected; and meanwhile, the plurality of sliding blocks are arranged, and the commutator body is fixed by the plurality of sliding blocks at a plurality of angles, so that the fixation is very firm.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle commutators, in particular to a vehicle commutator which is easy to disassemble and maintain. Background Art

[0002] The commutator is a crucial automotive component. Its function is to alternate the direction of the current in the armature winding, thereby maintaining the direction of the electromagnetic torque. Commutators are widely used in automotive generators and gasoline generators.

[0003] For example, the patent application "CN219610947U" for a long-life automotive commutator, which uses a mounting assembly to quickly and easily install and remove the commutator body and spindle, facilitates repair of the commutator in the event of damage, and addresses the current cumbersome mounting method for automotive commutators, which makes maintenance and disassembly difficult in the event of damage. However, vibration of the knob can cause the active rod to rotate, which in turn causes the fixing block to wobble within the fixing slot, loosening the connection between the commutator body and spindle. Furthermore, the two fixing blocks are not securely fixed to the commutator body. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a vehicle commutator that is easy to disassemble and maintain.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A vehicle commutator that is easy to disassemble and maintain is designed, comprising a commutator body and a main shaft matched therewith, wherein a cavity is provided inside the main shaft, a first limiting ring is provided in an annular manner on the surface of the main shaft, a plurality of guide grooves extending in the axial direction are provided on the inner wall of the commutator body, a plurality of first positioning grooves are provided on the inner wall of the upper part of the guide grooves, a screw cover is provided above the main shaft, the cross section of the screw cover is polygonal, a rotating rod is provided on the lower surface of the screw cover, a first fixing block is provided on the inner wall of the cavity, the lower end of the rotating rod slides through the upper surface of the main shaft, the rotating rod is rotatably connected to the first fixing block, a driving block is sleeved on the surface of the rotating rod, and a driving block side surface is provided in an annular manner The cam is provided with a plurality of springs, and the cam is provided with a plurality of first retaining rings, and the cam is provided with a plurality of second retaining rings.

[0007] Preferably, the surface of the mounting cover is evenly provided with a plurality of second through holes, the lower inner wall of the second positioning groove is provided with a plurality of thread grooves, the plurality of thread grooves correspond one-to-one to the plurality of second through holes, and bolts are provided inside the plurality of second through holes, and the lower ends of the bolts are threadedly connected to the thread grooves.

[0008] Preferably, a spherical bump is provided at one end of the sliding block close to the first positioning groove, and the spherical bump is a hemisphere.

[0009] Preferably, a second fixing block is provided on the inner wall of the cavity, and the rotating rod is rotatably connected to the second fixing block.

[0010] Preferably, a third positioning groove is provided in an annular shape on the surface of the rotating rod, and a positioning through hole is provided on the surface of the first fixing block. The positioning through hole is arranged circumferentially around the third positioning groove, and the diameter of the positioning through hole is smaller than the diameter of the rotating rod.

[0011] Preferably, the cross section of the sliding block is rectangular, and the cross section of the through hole of the sliding block passing through the main shaft matches the cross section of the sliding block.

[0012] The utility model proposes a vehicle commutator that is easy to disassemble and maintain, and has the beneficial effects of: the protruding part of the driving block is matched with the end block, and the installation cover plate is fixed by bolts, and is clamped with the screw cover through the first through hole to prevent the screw cover from rotating. When the screw cover vibrates, it is clamped with the screw cover through the first through hole to prevent the rotating rod from rotating, thereby ensuring that the sliding block does not shake in the first positioning groove, ensuring that the commutator body and the main shaft are firmly connected, and multiple sliding blocks slide along the guide groove. The sliding blocks are subjected to pressure from the guide groove, so that the spring is in a stretched state, so that the multiple sliding blocks all enter the corresponding first positioning groove, and the installation and fixation are convenient and quick; multiple sliding blocks are set at the same time, and the multiple sliding blocks fix the commutator body at multiple angles, and the fixation is very reliable. During disassembly, multiple bolts are unscrewed from the threaded grooves, the mounting cover is removed, and the cover is rotated and screwed with a wrench so that the recessed portion of the drive block corresponds to the end block. The end block is driven by the T-slot, thereby pulling the sliding block inward, causing the sliding block to disengage from the first positioning groove. The commutator body can then be removed. Disassembly is very convenient, which is conducive to the maintenance of the vehicle commutator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural sectional view of the utility model;

[0014] Figure 2 It is a structural diagram of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the drive block of the utility model;

[0016] Figure 4 This is a schematic structural diagram of the end block and the sliding block of the utility model;

[0017] Figure 5 This is an enlarged view of position A of the utility model;

[0018] Figure 6 This is an enlarged view of position B of the utility model;

[0019] Figure 7 This is an enlarged view of position C of the present invention.

[0020] In the figure: commutator body 1, main shaft 2, cavity 3, first limiting ring 4, guide groove 5, first positioning groove 6, screw cover 7, rotating rod 8, first fixing block 9, driving block 10, T-slot 11, end block 12, sliding block 13, second limiting ring 14, spring 15, second positioning groove 16, mounting cover 17, first through hole 18, second through hole 19, threaded groove 20, bolt 21, spherical bump 22, second fixing block 23, third positioning groove 24, positioning through hole 25. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-7 A vehicle commutator that is easy to disassemble and maintain includes a commutator body 1 and a matching main shaft 2. A cavity 3 is provided inside the main shaft 2, and a first limiting ring 4 is provided in an annular shape on the surface of the main shaft 2. The inner wall of the commutator body 1 is provided with a plurality of guide grooves 5 extending in the axial direction, which facilitates the sliding block 13 to slide axially along the commutator body 1 for installation. The upper inner walls of the plurality of guide grooves 5 are all provided with a first positioning groove 6. A screw cover 7 is provided above the main shaft 2. The cross-section of the screw cover 7 is polygonal and the screw cover 7 is a regular hexagon. The screw cover 7 can be rotated using a wrench on the market. A rotating rod 8 is provided on the lower surface of the screw cover 7, and a first fixed block 9 is provided on the inner wall of the cavity 3. The lower end of the rotating rod 8 slides through the upper surface of the main shaft 2. The rotating rod 8 is rotatably connected to the first fixed block 9. A driving block 10 is sleeved on the surface of the rotating rod 8. The driving block 10 is composed of four protrusions and four recesses. A T-shaped groove 11 is provided in an annular shape on the side surface of the driving block 10. A plurality of end blocks 12 are slidably connected to the inner wall of the T-shaped groove 11. A sliding block 13 is slidably and clamped to one end of each of the end blocks 12 close to the inner wall of the cavity 3. By sliding and clamping the end blocks 12 and the sliding blocks 13, the sliding blocks 13 can be pulled by the end blocks 12, and the sliding blocks 13 can also slide along the end blocks 12. The plurality of sliding blocks 13 correspond one-to-one to the plurality of first positioning grooves 6. There are four sliding blocks 13 and four first positioning grooves 6. The first positioning grooves 6 are evenly arranged in four directions on the circumference of the inner wall of the commutator body 1. One end of the sliding block 13 slides through the main shaft 2 and extends into the first positioning groove 6. A second limiting ring 14 is provided in an annular shape on the surface of the sliding block 13. The second limiting ring 14 serves to connect and support the spring 15. Springs 15 are circumferentially sleeved on the outer circumference of multiple sliding blocks 13, one end of the spring 15 is connected to the inner wall of the cavity 3, and the other end of the spring 15 is connected to the side surface of the second limiting ring 14. A second positioning groove 16 is provided on the upper surface of the main shaft 2, and a matching mounting cover 17 is provided on the lower inner wall of the second positioning groove 16. A first through hole 18 matching the screw cover 7 is provided on the surface of the mounting cover 17.

[0023] A plurality of second through holes 19 are evenly arranged on the surface of the mounting cover 17, and a plurality of thread grooves 20 are arranged on the lower inner wall of the second positioning groove 16. The plurality of thread grooves 20 correspond one-to-one to the plurality of second through holes 19, and bolts 21 are arranged inside the plurality of second through holes 19, and the lower ends of the bolts 21 are threadedly connected to the thread grooves 20.

[0024] The end of the sliding block 13 close to the first positioning groove 6 is provided with a spherical bump 22, which is a hemisphere. The spherical bump 22 can reduce the friction between the sliding block 13 and the guide groove 5.

[0025] The inner wall of the cavity 3 is provided with a second fixing block 23, and the rotating rod 8 is rotatably connected to the second fixing block 23. By rotatably connecting the second fixing block 23 to the rotating rod 8, the rotation of the rotating rod 8 can be made more stable.

[0026] A third positioning groove 24 is provided in an annular manner on the surface of the rotating rod 8, and a positioning through hole 25 is provided on the surface of the first fixing block 9. The positioning through hole 25 is arranged circumferentially of the third positioning groove 24, and the diameter of the positioning through hole 25 is smaller than the diameter of the rotating rod 8. The positioning through hole 25 can limit the rotating rod 8.

[0027] The cross section of the sliding block 13 is rectangular, and the cross section of the through hole through which the sliding block 13 passes through the main shaft 2 matches the cross section of the sliding block 13. Both cross sections are rectangular, preventing the sliding block 13 from rotating.

[0028] Working principle: During installation, first, the protruding part of the driving block 10 corresponds to the end block 12, and the mounting cover 17 is fixed by the bolt 21, and the first through hole 18 is engaged with the screw cover 7 to prevent the screw cover 7 from rotating. The multiple sliding blocks 13 slide along the guide groove 5. The sliding block 13 is subjected to the pressure of the guide groove 5, so that the spring 15 is in a stretched state, so that the multiple sliding blocks 13 all enter the corresponding first positioning groove 6; during disassembly, by unscrewing the multiple bolts 21 from the threaded groove 20, and then removing the mounting cover 17, the mounting cover 17 no longer plays a fixing role for the screw cover 7, and then the screw cover 7 is rotated with a wrench so that the concave part of the driving block 10 corresponds to the end block 12, and the end block 12 is driven by the T-slot 11, and then the sliding block 13 is pulled inward, so that the sliding block 13 is disengaged from the first positioning groove 6, and the commutator body 1 can be disassembled.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vehicle commutator that is easy to disassemble and maintain, comprising a commutator body (1) and a main shaft (2) matched therewith, characterized in that: The spindle (2) is provided with a cavity (3) inside, the surface of the spindle (2) is provided with a first limiting ring (4) in an annular shape, the inner wall of the commutator body (1) is provided with a plurality of guide grooves (5) extending in the axial direction, the upper inner walls of the plurality of guide grooves (5) are provided with a first positioning groove (6), a screw cover (7) is provided above the spindle (2), the cross section of the screw cover (7) is polygonal, a rotating rod (8) is provided on the lower surface of the screw cover (7), a first fixed block (9) is provided on the inner wall of the cavity (3), the lower end of the rotating rod (8) slides through the upper surface of the spindle (2), the rotating rod (8) is rotatably connected to the first fixed block (9), a driving block (10) is sleeved on the surface of the rotating rod (8), the side surface of the driving block (10) is provided with a T-shaped groove (11) in an annular shape, and the inner wall of the T-shaped groove (11) is slidably connected to a plurality of end blocks (12 ), one end of the multiple end blocks (12) close to the inner wall of the cavity (3) slides and is clamped with a sliding block (13), the multiple sliding blocks (13) correspond one to one with the multiple first positioning grooves (6), one end of the sliding block (13) slides through the main shaft (2) and extends into the first positioning groove (6), a second limiting ring (14) is provided in an annular shape on the surface of the sliding block (13), and a spring (15) is sleeved on the outer circumference of the multiple sliding blocks (13), one end of the spring (15) is connected to the inner wall of the cavity (3), and the other end of the spring (15) is connected to the side surface of the second limiting ring (14), the upper surface of the main shaft (2) is provided with a second positioning groove (16), the lower inner wall of the second positioning groove (16) is provided with a matching mounting cover (17), and the surface of the mounting cover (17) is provided with a first through hole (18) matching the screw cover (7).

2. The vehicle commutator that is easy to disassemble and maintain according to claim 1, characterized in that: A plurality of second through holes (19) are evenly arranged on the surface of the mounting cover plate (17), a plurality of thread grooves (20) are arranged on the lower inner wall of the second positioning groove (16), the plurality of thread grooves (20) correspond one-to-one to the plurality of second through holes (19), and a bolt (21) is arranged inside the plurality of second through holes (19), and the lower end of the bolt (21) is threadedly connected to the thread groove (20).

3. The vehicle commutator that is easy to disassemble and maintain according to claim 1 is characterized in that: A spherical bump (22) is provided at one end of the sliding block (13) close to the first positioning groove (6), and the spherical bump (22) is a hemisphere.

4. The vehicle commutator that is easy to disassemble and maintain according to claim 1, characterized in that: A second fixing block (23) is provided on the inner wall of the cavity (3), and the rotating rod (8) is rotatably connected to the second fixing block (23).

5. The vehicle commutator that is easy to disassemble and maintain according to claim 1 is characterized in that: A third positioning groove (24) is provided in an annular shape on the surface of the rotating rod (8), and a positioning through hole (25) is provided on the surface of the first fixed block (9). The positioning through hole (25) is arranged in the circumferential direction of the third positioning groove (24), and the diameter of the positioning through hole (25) is smaller than the diameter of the rotating rod (8).

6. The vehicle commutator that is easy to disassemble and maintain according to claim 1, characterized in that: The cross section of the sliding block (13) is rectangular, and the cross section of the through hole of the sliding block (13) passing through the main shaft (2) matches the cross section of the sliding block (13).

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