Replaceable motor assembly of electric vehicle and use method of replaceable motor assembly

Abstract

The invention discloses a replaceable motor assembly of an electric vehicle, a using method of the replaceable motor assembly and a motor. A half shaft and a mounting mechanism are mounted on the left side of the motor, the mounting mechanism is fixedly mounted on the left side of the half shaft, the mounting mechanism comprises a mounting head fixedly connected to the left side of the half shaft, and the surface of the mounting head is sleeved with a connecting shaft; a transmission groove is formed in the half shaft, two push plates are slidably connected to the interior of the transmission groove, the outer side of the fixing block penetrates through the mounting head and extends into the connecting shaft, a pressing block is fixedly connected to the end, away from the fixing block, of the outer side of the push plate, and the outer side of the pressing block penetrates out of the half shaft. According to the invention, the worn motor rotating shaft can be effectively and rapidly replaced, the problem that the rotating shaft cannot be normally used after being used for a long time is avoided, the practicability of the motor rotating shaft is enhanced, and the phenomenon that the rotating shaft and the motor are integrated and the rotating shaft cannot be rapidly replaced after being worn is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle components, and in particular to a replaceable motor component of an electric vehicle and a use method thereof. Background Art

[0002] Electric vehicles, also known as electric-driven vehicles, are divided into AC electric vehicles and DC electric vehicles. Electric vehicles are usually referred to as vehicles that use batteries as energy sources, and use controllers, motors and other components to convert electrical energy into mechanical energy to change speed by controlling the current size. Electric vehicle motors have many styles according to their use environment and frequency of use, and different forms of motors have different characteristics. At present, electric vehicle motors generally use permanent magnet DC motors. Electric vehicle motors can be divided into two categories according to the form of motor power supply: brushed motors and brushless motors; according to the mechanical structure of the motor assembly, they are generally divided into two categories: "toothed" (the motor has a high speed and needs to be reduced by gears) and "toothed" (the motor torque output does not undergo any reduction). Permanent magnet DC motors are composed of stator poles, rotors, brushes, housings, etc. The stator poles use permanent magnets (permanent magnets), such as ferrite, aluminum nickel cobalt, and neodymium iron boron. According to its structural form, it can be divided into several types such as cylindrical type and tile type. The rotor is generally made of laminated silicon steel sheets. The enameled wire is wound between the two slots of the rotor core (three slots means three windings). Its joints are welded to the metal sheet of the commutator. The brush is a conductive component that connects the power supply and the rotor winding. It has both conductive and wear-resistant properties. The brush of the permanent magnet motor uses a single-sex metal sheet or metal graphite brush, electrochemical graphite brush. The brushless DC motor consists of a permanent magnet rotor, a multi-pole winding stator, a position sensor, etc. The brushless DC motor is characterized by being brushless and using semiconductor switching devices (such as Hall elements) to achieve electronic commutation, that is, using electronic switching devices instead of traditional contact commutators and brushes. It has the advantages of high reliability, no commutation sparks, and low mechanical noise.

[0003] According to the patent number published on the China Patent Network: 202122266428.9, it is specifically an electric vehicle motor with a waterproof structure, which belongs to the technical field of electric vehicle motors, including a box body, a positioning mechanism is arranged inside the box body, a motor body is arranged on the positioning mechanism, and a limiting mechanism is arranged on one side of the box body; the positioning mechanism includes a transmission rod, the transmission rod is rotatably installed inside the box body, the transmission rod rotates through the box body and a turntable is fixedly installed at its end, a side gear is fixedly installed at one end of the transmission rod away from the turntable, a support block is fixedly installed inside the box body, a support rod is rotatably installed in the middle of the support block, a first gear is fixedly installed at the opposite end of the support rod, and the side gear and the first gear are meshed and connected; the motor body can be clamped by a group of positioning plates, which on the one hand improves the stability of the motor body, and on the other hand makes the installation method of the motor body simple, which is convenient for the later disassembly and maintenance of the motor body, but most of the output shafts of the motors are fixed inside the motor as a whole, which causes the motor shaft to be easily worn after long-term use, and excessive wear will cause the motor shaft and accessories to shake, reducing the practicality of the electric vehicle motor.

[0004] Therefore, it is necessary to improve the electric vehicle motor to prevent the phenomenon that the rotating shaft and the motor are integrated and the rotating shaft cannot be quickly replaced after being worn. Summary of the invention

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a replaceable motor assembly for an electric vehicle and a method of using the same, which has the advantage of being easy to replace the motor shaft, and solves the problem that most of the output shafts of the motors are fixed inside the motor as a whole, which causes the motor shaft to be easily worn after long-term use. Excessive wear can cause the motor shaft and accessories to shake, reducing the practicality of the electric vehicle motor.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a replaceable motor assembly of an electric vehicle and a method for using the same, comprising:

[0007] A motor, wherein a half shaft is installed on the left side of the motor;

[0008] The mounting mechanism is fixedly mounted on the left side of the half shaft, the mounting mechanism comprises a mounting head fixedly connected to the left side of the half shaft, the surface of the mounting head is sleeved with a connecting shaft, a transmission groove is provided inside the half shaft, two push plates are slidably connected inside the transmission groove, the outer side of the push plate is fixedly connected to a fixing block, the outer side of the fixing block passes through the mounting head and extends to the inside of the connecting shaft, the outer side of the push plate is fixedly connected to a pressing block at one end away from the fixing block, and the outer side of the pressing block passes through the outside of the half shaft;

[0009] A limiting mechanism, wherein the limiting mechanism is sleeved on the surface of the connecting shaft, the mounting mechanism comprises a limiting plate fixedly connected to the surface of the connecting shaft, the surface of the connecting shaft is sleeved with a protective sleeve, the right side of the protective sleeve contacts with the left side of the motor, a rotating sleeve is arranged on the left side of the inner wall of the protective sleeve, the rotating sleeve is sleeved on the surface of the limiting plate, the left side of the rotating sleeve extends to the inside of the protective sleeve and is fixedly connected to a limiting ring, the surface of the limiting ring is slidably connected to the inner wall of the protective sleeve, the surface of the protective sleeve is sleeved with a fixing sleeve, the left side of the inner wall of the fixing sleeve contacts with the left side of the protective sleeve, the right side of the fixing sleeve contacts with the left side of the motor, four mounting plates are fixedly connected to the surface of the fixing sleeve, the left side of the mounting plate contacts with the right side of the motor, a bolt is arranged on the left side of the mounting plate, the right side of the bolt penetrates the mounting plate and extends to the inside of the motor, and the bolt is threadedly connected to the motor;

[0010] The positioning mechanism is fixedly installed on the left side of the motor and used in conjunction with the motor.

[0011] As a preferred embodiment of the present invention, the positioning mechanism includes a clamping block fixedly connected to the top and bottom of the protective sleeve, a clamping sleeve is provided on the surface of the clamping block, a slider is fixedly connected to the left side of the clamping sleeve, the left side of the slider extends to the interior of the motor and is slidably connected to the inner wall of the motor, a rebounder is fixedly connected to the outside of the clamping sleeve, a vertical plate is fixedly connected to the outside of the rebounder, and the right side of the vertical plate is fixedly connected to the left side of the motor.

[0012] As a preferred embodiment of the present invention, a pull block is fixedly connected to the left side of the ferrule, and the pull block is used in conjunction with the ferrule.

[0013] As a preferred embodiment of the present invention, two guide rods are vertically fixedly connected inside the transmission groove, and a return spring is sleeved on the surface of the guide rod, and both sides of the return spring are fixedly connected to the inner wall of the push plate.

[0014] As a preferred embodiment of the present invention, the inner wall of the fixing sleeve is fixedly connected to a limiting pad, and the inner wall of the limiting pad is in contact with the surface of the protective sleeve.

[0015] As a preferred embodiment of the present invention, the top and the bottom of the semi-shaft are both provided with openings, the width of the openings is greater than the width of the pressing block, and the openings are used in conjunction with the pressing block.

[0016] As a preferred embodiment of the present invention, a friction pad is fixedly connected to the left side of the clamping block, and the surface of the friction pad is in contact with the inner wall of the clamping sleeve.

[0017] As a preferred embodiment of the present invention, a slide groove is provided at the top and the bottom of the left side of the motor, and the right side of the slider extends into the interior of the slide groove and is slidably connected to the inner wall of the slide groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention can effectively and quickly replace the worn motor shaft, thereby avoiding the problem that the shaft cannot be used normally after long-term use, enhancing the practicality of the motor shaft, and preventing the shaft from being integrated with the motor and the shaft cannot be quickly replaced after wear.

[0020] 2. The present invention can initially limit the position of the protective sleeve by providing a positioning mechanism, thereby preventing the protective sleeve from shaking when it is not fixed by the fixing sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a partial enlarged view of the structure of the present invention;

[0023] Figure 3 It is an enlarged partial cross-sectional view of the structure of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle;

[0026] Figure 6 It is a three-dimensional diagram of the local parts of the structure of the present invention.

[0027] In the figure: 1. motor; 2. half shaft; 3. mounting mechanism; 301. mounting head; 302. connecting shaft; 303. transmission groove; 304. push plate; 305. fixing block; 306. pressing block; 4. limiting mechanism; 401. limiting plate; 402. protective sleeve; 403. rotating sleeve; 404. limiting ring; 405. fixing sleeve; 406. mounting plate; 407. bolt; 5. positioning mechanism; 501. clamping block; 502. clamping sleeve; 503. sliding block; 504. rebounder; 505. vertical plate; 6. pulling block; 7. guide rod; 8. reset spring; 9. limiting pad; 10. opening; 11. friction pad; 12. slide groove. DETAILED DESCRIPTION

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

[0029] like Figures 1 to 6 As shown, the present invention provides a replaceable motor assembly for an electric vehicle and a method for using the same, comprising:

[0030] Motor 1, a half shaft 2 is installed on the left side of the motor 1;

[0031] The mounting mechanism 3 is fixedly mounted on the left side of the half shaft 2. The mounting mechanism 3 includes a mounting head 301 fixedly connected to the left side of the half shaft 2. The surface of the mounting head 301 is sleeved with a connecting shaft 302. A transmission groove 303 is provided inside the half shaft 2. Two push plates 304 are slidably connected inside the transmission groove 303. A fixing block 305 is fixedly connected to the outer side of the push plate 304. The outer side of the fixing block 305 passes through the mounting head 301 and extends to the inside of the connecting shaft 302. A pressing block 306 is fixedly connected to the outer end of the push plate 304 away from the fixing block 305. The outer side of the pressing block 306 passes through the outside of the half shaft 2.

[0032] The limiting mechanism 4 is sleeved on the surface of the connecting shaft 302. The mounting mechanism 3 includes a limiting plate 401 fixedly connected to the surface of the connecting shaft 302. The surface of the connecting shaft 302 is sleeved with a protective sleeve 402. The right side of the protective sleeve 402 contacts the left side of the motor 1. A rotating sleeve 403 is provided on the left side of the inner wall of the protective sleeve 402. The rotating sleeve 403 is sleeved on the surface of the limiting plate 401. The left side of the rotating sleeve 403 extends to the inside of the protective sleeve 402 and is fixedly connected to a limiting ring 404. The surface of the limiting ring 404 contacts the protective sleeve 402. The inner wall of the sheath 402 is slidably connected, and a fixing sheath 405 is sleeved on the surface of the protective sheath 402. The left side of the inner wall of the fixing sheath 405 contacts the left side of the protective sheath 402, and the right side of the fixing sheath 405 contacts the left side of the motor 1. Four mounting plates 406 are fixedly connected to the surface of the fixing sheath 405. The left side of the mounting plate 406 contacts the right side of the motor 1. A bolt 407 is arranged on the left side of the mounting plate 406. The right side of the bolt 407 penetrates the mounting plate 406 and extends to the inside of the motor 1. The bolt 407 is threadedly connected to the motor 1.

[0033] The positioning mechanism 5 is fixedly mounted on the left side of the motor 1 and used in conjunction with the motor 1 .

[0034] refer to Figure 3 The positioning mechanism 5 includes a block 501 fixedly connected to the top and bottom of the protective sleeve 402, a sleeve 502 is sleeved on the surface of the block 501, a slider 503 is fixedly connected to the left side of the sleeve 502, the left side of the slider 503 extends to the inside of the motor 1 and is slidably connected to the inner wall of the motor 1, a rebounder 504 is fixedly connected to the outside of the sleeve 502, a vertical plate 505 is fixedly connected to the outside of the rebounder 504, and the right side of the vertical plate 505 is fixedly connected to the left side of the motor 1.

[0035] As a technical optimization solution of the present invention, by providing a positioning mechanism 5, the protective sleeve 402 can be initially limited to prevent the protective sleeve 402 from shaking when it is not fixed by the fixing sleeve 405.

[0036] refer to Figure 4 The left side of the ferrule 502 is fixedly connected with a pull block 6, which is used in conjunction with the ferrule 502.

[0037] As a technical optimization solution of the present invention, by providing the pull block 6, it is convenient for the user to pull the card sleeve 502 outward, thereby improving the user's comfort.

[0038] refer to Figure 5 Two guide rods 7 are vertically fixedly connected inside the transmission groove 303 , and a return spring 8 is sleeved on the surface of the guide rod 7 . Both sides of the return spring 8 are fixedly connected to the inner wall of the push plate 304 .

[0039] As a technical optimization solution of the present invention, by providing the guide rod 7 and the return spring 8, the push plate 304 can be automatically moved outward, thereby improving the practicality of the push plate 304.

[0040] refer to Figure 4 The inner wall of the fixing sleeve 405 is fixedly connected to the limiting pad 9 , and the inner wall of the limiting pad 9 contacts the surface of the protective sleeve 402 .

[0041] As a technical optimization solution of the present invention, by providing a limiting pad 9, the protective sleeve 402 can be limited, thereby improving the stability of the protective sleeve 402.

[0042] refer to Figure 5 The top and bottom of the half shaft 2 are both provided with openings 10 , the width of the opening 10 is greater than the width of the pressing block 306 , and the opening 10 is used in conjunction with the pressing block 306 .

[0043] As a technical optimization solution of the present invention, by providing the opening 10, the pressing block 306 can completely pass through the half-shaft 2 to move, thereby preventing the opening 10 from being too small and causing the pressing block 306 to get stuck.

[0044] refer to Figure 4 A friction pad 11 is fixedly connected to the left side of the clamping block 501 , and the surface of the friction pad 11 contacts the inner wall of the clamping sleeve 502 .

[0045] As a technical optimization solution of the present invention, by providing the friction pad 11, the block 501 and the sleeve 502 can be in closer contact, thereby increasing the contact area between the block 501 and the sleeve 502.

[0046] refer to Figure 4A slide groove 12 is provided at the top and the bottom of the left side of the motor 1 , and the right side of the slider 503 extends into the interior of the slide groove 12 and is slidably connected with the inner wall of the slide groove 12 .

[0047] As a technical optimization solution of the present invention, by providing the slide groove 12, the slider 503 can be guided to prevent the slider 503 from being separated from the motor 1 when moving.

[0048] The working principle and use process of the present invention are as follows: when in use, first press the pressing block 306 inwardly, the pressing block 306 drives the push plate 304 to move inwardly, and the push plate 304 drives the fixing block 305 to move inwardly, and after moving to the limit position, the connecting shaft 302 is sleeved on the surface of the mounting head 301, and after the sleeve is completed, the pressing block 306 is released, and the elastic force of the return spring 8 drives the push plate 304 and the fixing block 305 to move outward, so that the fixing block 305 is inserted into the interior of the connecting shaft 302 to preliminarily fix the connecting shaft 302, and then the protective sleeve 402 is sleeved on the surface of the connecting shaft 302 so that the protective sleeve 402 The internal rotating sleeve 403 is sleeved on the surface of the limiting plate 401. After the sleeve is sleeved, the elastic force of the rebounder 504 drives the clamping sleeve 502 to move inward, so that the clamping sleeve 502 is sleeved on the surface of the clamping block 501 to fix the protective sleeve 402. Finally, the fixed sleeve 405 is sleeved on the surface of the protective sleeve 402, so that the fixed sleeve 405 is pressed tightly against the right side of the protective sleeve 402. After the pressing is completed, the mounting plate 406 on the surface of the fixed sleeve 405 is pressed tightly against the surface of the motor 1. After the pressing is completed, the bolt 407 is twisted to make the bolt 407 pass through the mounting plate 406 and insert into the interior of the motor 1 to limit the fixed sleeve 405.

[0049] In summary, the replaceable motor assembly of the electric vehicle and its use method, by pressing the pressing block 306 inwardly, the pressing block 306 drives the push plate 304 to move inwardly, and the push plate 304 drives the fixing block 305 to move inwardly, and after moving to the limit position, the connecting shaft 302 is sleeved on the surface of the mounting head 301, and after the sleeve is completed, the pressing block 306 is released, and the elastic force of the return spring 8 drives the push plate 304 and the fixing block 305 to move outward, so that the fixing block 305 is snapped into the inside of the connecting shaft 302 to preliminarily fix the connecting shaft 302, and then the protective sleeve 402 is sleeved on the surface of the connecting shaft 302, and the rotating sleeve 403 inside the protective sleeve 402 is sleeved on the surface of the limiting plate 401, and after the sleeve is completed, the elastic force of the rebounder 504 drives the clamping sleeve 502 to move inwardly, so that The clamping sleeve 502 is sleeved on the surface of the clamping block 501 to fix the protective sleeve 402, and finally the fixing sleeve 405 is sleeved on the surface of the protective sleeve 402, so that the fixing sleeve 405 is pressed against the right side of the protective sleeve 402, and after pressing, the mounting plate 406 on the surface of the fixing sleeve 405 is pressed against the surface of the motor 1, and after pressing, the bolt 407 is twisted to make the bolt 407 pass through the mounting plate 406 and insert into the interior of the motor 1 to limit the fixing sleeve 405, thereby having the advantage of being easy to replace the motor shaft, solving the problem that most of the output shafts of the motor are fixed inside the motor as a whole, which makes the motor shaft prone to wear after long-term use, and excessive wear will cause the motor shaft and accessories to shake, reducing the practicality of the electric vehicle motor.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A replaceable motor assembly for an electric vehicle and a method of using the same, characterized in that: include: A motor (1), wherein a half shaft (2) is mounted on the left side of the motor (1); A mounting mechanism (3), wherein the mounting mechanism (3) is fixedly mounted on the left side of the half shaft (2), and the mounting mechanism (3) comprises a mounting head (301) fixedly connected to the left side of the half shaft (2), a connecting shaft (302) being sleeved on the surface of the mounting head (301), a transmission groove (303) being provided inside the half shaft (2), two push plates (304) being slidably connected inside the transmission groove (303), a fixing block (305) being fixedly connected to the outer side of the push plate (304), the outer side of the fixing block (305) passing through the mounting head (301) and extending to the inner side of the connecting shaft (302), a pressing block (306) being fixedly connected to the outer side of the push plate (304) away from the fixing block (305), and the outer side of the pressing block (306) passing through the outer side of the half shaft (2); A limiting mechanism (4), wherein the limiting mechanism (4) is sleeved on the surface of the connecting shaft (302), the mounting mechanism (3) comprises a limiting plate (401) fixedly connected to the surface of the connecting shaft (302), the surface of the connecting shaft (302) is sleeved with a protective sleeve (402), the right side of the protective sleeve (402) contacts the left side of the motor (1), a rotating sleeve (403) is provided on the left side of the inner wall of the protective sleeve (402), the rotating sleeve (403) is sleeved on the surface of the limiting plate (401), the left side of the rotating sleeve (403) extends to the interior of the protective sleeve (402) and is fixedly connected to a limiting ring (404), the surface of the limiting ring (404) contacts the protective sleeve (402), and the rotating sleeve (403) is sleeved on the surface of the limiting plate (401). The inner wall of the protective sleeve (402) is slidably connected, the surface of the protective sleeve (402) is sleeved with a fixing sleeve (405), the left side of the inner wall of the fixing sleeve (405) contacts the left side of the protective sleeve (402), the right side of the fixing sleeve (405) contacts the left side of the motor (1), the surface of the fixing sleeve (405) is fixedly connected with four mounting plates (406), the left side of the mounting plate (406) contacts the right side of the motor (1), the left side of the mounting plate (406) is provided with a bolt (407), the right side of the bolt (407) penetrates the mounting plate (406) and extends to the inside of the motor (1), and the bolt (407) is threadedly connected to the motor (1); A positioning mechanism (5), wherein the positioning mechanism (5) is fixedly mounted on the left side of the motor (1) and is used in conjunction with the motor (1).

2. The replaceable motor assembly of an electric vehicle and the method for using the same according to claim 1, characterized in that: The positioning mechanism (5) comprises a clamping block (501) fixedly connected to the top and bottom of the protective sleeve (402); the surface of the clamping block (501) is sleeved with a clamping sleeve (502); a slider (503) is fixedly connected to the left side of the clamping sleeve (502); the left side of the slider (503) extends to the inside of the motor (1) and is slidably connected to the inner wall of the motor (1); a rebounder (504) is fixedly connected to the outside of the clamping sleeve (502); a vertical plate (505) is fixedly connected to the outside of the rebounder (504); and the right side of the vertical plate (505) is fixedly connected to the left side of the motor (1).

3. The replaceable motor assembly of an electric vehicle and the method for using the same according to claim 1, characterized in that: A pull block (6) is fixedly connected to the left side of the clamping sleeve (502), and the pull block (6) is used in conjunction with the clamping sleeve (502).

4. The replaceable motor assembly of an electric vehicle and the method for using the same according to claim 1, characterized in that: Two guide rods (7) are vertically fixedly connected inside the transmission groove (303), and a return spring (8) is sleeved on the surface of the guide rod (7). Both sides of the return spring (8) are fixedly connected to the inner wall of the push plate (304).

5. The replaceable motor assembly of an electric vehicle and the method for using the same according to claim 1, characterized in that: The inner wall of the fixing sleeve (405) is fixedly connected to a limiting pad (9), and the inner wall of the limiting pad (9) is in contact with the surface of the protective sleeve (402).

6. The replaceable motor assembly of an electric vehicle and the method for using the same according to claim 1, characterized in that: The top and bottom of the semi-axle (2) are both provided with openings (10); the width of the opening (10) is greater than the width of the pressing block (306); the opening (10) and the pressing block (306) are used in conjunction with each other.

7. The replaceable motor assembly of an electric vehicle and the method for using the same according to claim 1, characterized in that: A friction pad (11) is fixedly connected to the left side of the clamping block (501), and the surface of the friction pad (11) is in contact with the inner wall of the clamping sleeve (502).

8. The replaceable motor (1) assembly of an electric vehicle and the method of using the same according to claim 2, characterized in that: A slide groove (12) is provided at the top and the bottom of the left side of the motor (1), and the right side of the slider (503) extends into the interior of the slide groove (12) and is slidably connected to the inner wall of the slide groove (12).

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