Guide tool, mounting shaft of motor, motor and vehicle

Abstract

The utility model relates to a guide tool, a mounting shaft of a motor, the motor and a vehicle. The guiding tool is used for assisting a mounting shaft of a motor in mounting a power assembly, the mounting shaft comprises a power shaft part used for mounting the power assembly, a guiding shaft part coaxially connected with the power shaft part and a positioning part arranged on the guiding shaft part, the guiding shaft part is provided with a guiding surface, and the guiding tool comprises a body and a positioning matching part. The body is provided with an annular peripheral surface, the positioning matching part is connected to the body, and the positioning matching part is used for being in positioning connection with the positioning part and used for guiding the power assembly to penetrate through the annular peripheral surface and the guiding surface of the guiding shaft part to be connected to the power shaft part in a sleeving mode. The guide length of the mounting shaft in the axial direction is increased through the external guide tool, so that when the axial size of the guide shaft part on the mounting shaft is designed, the guide length can be designed to be smaller than that of the prior art, the axial length of the guide shaft part can be reduced, the axial length of the mounting shaft of the motor is reduced, and the size and the weight of the motor are reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of motors, and in particular, to a guide tool, a mounting shaft of a motor, a motor, and a vehicle. Background Art

[0002] With the improvement of power density and torque density of electric drive assembly of new energy vehicles, very high requirements are put forward for the quality and volume of electric drive. In order to reduce mass and volume, the axial dimension of electric drive needs to be extremely compressed. For example, in the motor of electric drive, the size of the mounting shaft used to install the stator or rotor is constantly shrinking. The stator core or rotor core and the pressure ring at the end of the stator core or rotor core need to be sleeved on the mounting shaft of the motor to realize the function of the rotor or stator. Taking the rotor as an example, a guide shaft portion for guiding the installation of the rotor core and the pressure ring will be provided on the rotating shaft (installation shaft) of the rotor. In order to facilitate the installation of the rotor core and the pressure ring, the guide shaft portion usually has a longer axial length. Therefore, the guide shaft portion on the rotating shaft will occupy the axial dimension of the motor shaft, which will make the overall axial dimension of the rotating shaft longer. Utility Model Content

[0003] The purpose of the present disclosure is to provide a guide tool, a motor mounting shaft, a motor and a vehicle, wherein the guide tool can assist power components (such as a stator core, a rotor core and a pressure ring, etc.) to be installed on the motor mounting shaft, so that when designing the axial dimension of the guide shaft portion on the mounting shaft, it can be designed to be smaller, thereby reducing the dimension of the motor mounting shaft in the axial direction, reducing the weight and volume of the motor mounting shaft, so as to at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned object, the present disclosure provides a guide tool for assisting the installation shaft of the motor to install the power component, the installation shaft includes a power shaft portion for installing the power component, a guide shaft portion coaxially connected to the power shaft portion, and a positioning portion provided on the guide shaft portion, the guide shaft portion has a guide surface, and the guide tool includes:

[0005] A body having an annular outer peripheral surface;

[0006] The positioning and matching portion is connected to the main body and is used for positioning and matching with the positioning portion so as to guide the power component to pass through the annular outer peripheral surface and the guide surface of the guide shaft portion and then be sleeved on the power shaft portion.

[0007] Optionally, the positioning fitting portion is configured as a positioning protrusion or a positioning groove.

[0008] Optionally, a guide groove is provided on the main body, the guide groove is recessed in the annular outer peripheral surface and penetrates the main body in the axial direction, and the guide groove is used to communicate with a key groove on the mounting shaft.

[0009] Optionally, the positioning fitting portion includes two positioning protrusions protruding axially from the body, an extension groove connected to the guide groove is formed between the two positioning protrusions, and the guide groove is connected to the key groove through the extension groove.

[0010] Optionally, a positioning mating surface is provided on a side of the positioning protrusion facing away from the extension groove.

[0011] Optionally, the body is an annular body.

[0012] A second aspect of the present disclosure provides an installation shaft of a motor, wherein the installation shaft has a power shaft portion for installing a power component and a guide shaft portion coaxially connected to the power shaft portion, the guide shaft portion has a guide surface, and the installation shaft also has a positioning portion arranged on the guide shaft portion, the positioning portion is used to position and cooperate with a positioning and matching portion on a main body of a guide tooling, so that the power component passes through the annular outer circumferential surface of the main body and the guide surface and then is sleeved on the power shaft portion.

[0013] Optionally, the axial length of the guide shaft portion is less than or equal to 15 mm.

[0014] Optionally, the positioning portion includes a protrusion and / or a groove.

[0015] Optionally, the mounting shaft includes a keyway and a horn groove, the horn groove gradually decreases from an opening at one end of the guide shaft portion away from the power shaft portion, extends toward the power shaft portion and is connected with the keyway, the keyway is at least partially located on the power shaft portion, the horn groove is the positioning portion, and the keyway is used to be connected axially with the guide groove on the main body.

[0016] Optionally, the connection point between the horn groove and the key groove is located on the guide shaft portion.

[0017] Optionally, the guiding surface is a conical inclined surface, and the inclination of the conical inclined surface is 5° to 10°.

[0018] Optionally, the mounting shaft further comprises a supporting portion connected to the guiding shaft portion, and the supporting portion is used for sleeve-inserting a bearing or for inserting the body.

[0019] The third aspect of the present disclosure provides an electric motor, comprising a stator core, a rotor core, a pressure ring and the mounting shaft of the electric motor provided in the second aspect of the present disclosure, wherein the power component is at least one of the stator core and the pressure ring or the power component is at least one of the rotor core and the pressure ring.

[0020] A fourth aspect of the present disclosure provides a vehicle, comprising the motor provided by the third aspect of the present disclosure.

[0021] Through the above technical solution, the guide fixture is used to assist the motor's installation shaft in installing the power component. The positioning matching portion of the guide fixture is connected to the body and is used to be positioned and connected with the positioning portion, so as to guide the power component to pass through the annular outer peripheral surface and then be sleeved on the power shaft. The setting of the guide fixture can assist the installation of the power component. Therefore, when designing the axial size of the guide shaft portion on the installation shaft, it can be designed smaller than that of the related technology, thereby reducing the axial size of the guide shaft portion on the motor shaft, thereby reducing the size of the motor's installation shaft in the axial direction, and reducing the mass and volume of the motor's installation shaft.

[0022] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0024] Figure 1 is a schematic diagram of a three-dimensional structure of a guide tool provided in an exemplary embodiment of the present disclosure;

[0025] Figure 2 is provided in the exemplary embodiment of the present disclosure, which is different from Figure 1 A schematic diagram of the structure of the guide tooling from a viewing angle;

[0026] Figure 3 is a schematic structural diagram of a mounting shaft of a motor provided in an exemplary embodiment of the present disclosure;

[0027] Figure 4 yes Figure 3 A partial enlarged view of position A in the middle;

[0028] Figure 5 yes Figure 4 A local enlarged view of position B in FIG.

[0029] Figure 6 is a schematic structural diagram of a guide tool provided in an exemplary embodiment of the present disclosure installed on a mounting shaft of a motor, wherein only a portion of the mounting shaft is shown;

[0030] Figure 7 is an exploded structural schematic diagram of a guide fixture and a mounting shaft of a motor provided in an exemplary embodiment of the present disclosure, wherein only a portion of the mounting shaft is shown;

[0031] Figure 8 It is a schematic diagram of the structure in which a power component provided in an exemplary embodiment of the present disclosure is installed on a mounting shaft of a motor; wherein only a portion of the mounting shaft is shown.

[0032] Description of Reference Numerals

[0033] 10-guide tooling; 11-main body; 110-annular body; 111-outer peripheral surface; 12-positioning fitting portion; 121-positioning protrusion; 121a-positioning fitting surface; 13-guide groove; 14-extension groove; 20-installation shaft; 21-power shaft portion; 22-guide shaft portion; 221-guide surface; 23-keyway; 24-positioning portion; 240-horn groove; 25-support portion; 26-stop portion; 30-power component. DETAILED DESCRIPTION

[0034] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0035] In the present disclosure, unless otherwise stated, directional words such as "inside" and "outside" refer to the inside and outside of the outline of a component or structure itself. "First" and "second" are used to distinguish one element from another and do not have order or importance.

[0036] The first aspect of the present disclosure provides a guide tool 10, such as Figures 1 to 8 As shown, the mounting shaft 20 for assisting the motor to install the power component 30, the mounting shaft 20 includes a power shaft portion 21 for installing the power component 30, a guide shaft portion 22 coaxially connected to the power shaft portion 21, and a positioning portion 24 arranged on the guide shaft portion 22, the guide shaft portion 22 has a guide surface 221, and the guide tooling 10 includes a main body 11 and a positioning matching portion 12. Among them, the main body 11 has an annular outer circumferential surface 111, and the positioning matching part 12 is connected to the main body 11. The positioning matching part 12 is used to position and match with the positioning part 24, so that the annular outer circumferential surface 111 of the main body 11 and the guide surface 221 of the guide shaft part 22 are combined in the axial direction of the installation shaft 20 to form a surface for guiding the guide tooling 10, so as to guide the power component 30 to pass through the annular outer circumferential surface 111 and the guide surface 221 of the guide shaft part 22 and then be sleeved on the power shaft part 21. The setting of the guide tooling 10 can perform auxiliary guiding when the power component 30 is installed on the installation shaft 20 of the motor. The guiding length of the axial direction of the installation shaft 20 is increased by the external guiding tooling 10, and then when designing the axial size of the guide shaft part on the installation shaft, it can be designed smaller than the related technology, thereby reducing the axial length of the guide shaft part 22, thereby reducing the axial length of the installation shaft 20 of the motor, thereby reducing the volume and weight of the motor.

[0037] In the above-mentioned embodiment, the power shaft portion 21 is the area of ​​the mounting shaft 20 where the power component 30 is connected to the mounting shaft 20 of the motor when the motor is working normally. When the power component 30 is in the power shaft portion 21, the power component 30 and the mounting shaft 20 of the motor are interference fit. The guide shaft portion 22 is used for guiding the power component 30 when it is installed on the mounting shaft 20 of the motor.

[0038] In addition, the power assembly 30 can be constructed in different forms according to the type of the motor. For example, when the motor is an outer rotor motor, the motor's mounting shaft 20 is a stator shaft, and the power assembly 30 can be at least one of a stator core or a pressure ring; when the motor is an inner rotor motor, the motor's mounting shaft 20 is a rotor shaft, and the power assembly 30 can be at least one of a rotor core or a pressure ring. It should be understood that the power assembly 30 can also be constructed as other components that cooperate with the mounting shaft 20, which is not limited here.

[0039] In some embodiments, the motor's mounting shaft 20 and the power assembly 30 may be matched through a keyway to make the connection between the two more stable. Usually, the motor's mounting shaft 20 includes a keyway 23, and the power assembly 30 includes a key that matches the keyway 23. When the power assembly 30 is sleeved and installed on the motor's mounting shaft 20, the key of the power assembly 30 will be inserted into the keyway 23 of the motor's mounting shaft 20. When the guide fixture 10 is used to assist in guiding the power assembly 30, a guide groove 13 may be provided on the body 11 of the guide fixture 10. The guide groove 13 is recessed in the annular outer peripheral surface 111 and axially penetrates the body 11. The guide groove 13 is used to communicate with the keyway 23 on the mounting shaft 20, so that the key of the power assembly 30 can enter the keyway 23 of the mounting shaft 20 after being guided by the guide groove 13, and it is also convenient for the key of the power assembly 30 to be inserted into the keyway 23 of the mounting shaft 20.

[0040] In some embodiments, the positioning and fitting portion 12 of the guide tooling 10 can be arbitrarily constructed in an appropriate form. For example, the positioning and fitting portion 12 can be constructed as a positioning protrusion 121 or a positioning groove, and the positioning portion 24 can be constructed as a structure that can be positioned and matched with the positioning and fitting portion 12. For example, when the positioning and fitting portion 12 is constructed as a positioning protrusion 121, the positioning portion 24 can be constructed as a groove that matches the positioning protrusion 121. When the positioning and fitting portion 12 is constructed as a positioning groove, the positioning portion 24 can be constructed as a protrusion that can be positioned and matched with the positioning groove. In short, the positioning of the guide tooling 10 when it is installed on the mounting shaft 20 can be achieved by the positioning and fitting portion 12 of the guide tooling 10 and the positioning portion 24 of the mounting shaft 20, and the present disclosure does not make specific limitations on this.

[0041] In some embodiments, Figure 1 , Figure 2 , Figure 6 as well as Figure 7As shown, the positioning fitting portion 12 includes two positioning protrusions 121 protruding axially from the body 11 , and an extension groove 14 communicating with the guide groove 13 is formed between the two positioning protrusions 121 . The guide groove 13 communicates with the key groove 23 through the extension groove 14 .

[0042] In the above-mentioned embodiment, when the positioning matching portion 12 includes two positioning protrusions 121 protruding from the body 11 in the axial direction, the positioning portion 24 of the installation shaft 20 can be constructed as a groove that matches the two positioning protrusions 121. The two positioning protrusions 121 can be inserted into the grooves to be used for positioning the guide tool 10 when it is installed on the installation shaft 20. In addition, the extension groove 14 formed between the two positioning protrusions 121 can make the key groove 23 and the guide groove 13 with a spacing in the axial direction of the installation shaft 20 communicate through the extension groove 14. When the guide tool 10 is installed on the installation shaft 20, it is not necessary to make the body 11 fit the shaft section where the key groove 23 is located in order to communicate the guide groove 13 with the key groove 23, which makes it easier for the guide tool 10 to be installed on the installation shaft 20.

[0043] It should be noted that, after the guide fixture 10 completes the auxiliary guiding of the power component 30 , the guide fixture 10 can be removed from the installation shaft 20 , so as to facilitate the subsequent installation of the installation shaft 20 in the housing of the motor.

[0044] In some embodiments, a positioning mating surface 121a is provided on one side of the positioning protrusion 121 away from the extension groove 14, and the positioning mating surface 121a is used to cooperate with the side wall of the positioning portion 24 configured as a groove to achieve the positioning mating between the positioning protrusion 121 and the positioning portion 24 configured as a groove. In addition, the positioning mating surface 121a and the side wall of the groove can be connected and fitted to complete the positioning mating between the positioning protrusion 121 and the positioning portion 24 configured as a groove.

[0045] In other possible implementations, the positioning mating surface 121a of the positioning protrusion 121 and the side wall of the positioning portion 24 configured as a groove may not be connected, as long as the positioning mating between the positioning protrusion 121 and the positioning portion 24 configured as a groove can be achieved, and no limitation is made here.

[0046] In some embodiments, Figures 1 to 8 As shown, the body 11 of the guide fixture 10 can be an annular body 110, which can facilitate the guide fixture 10 to be sleeved on the motor mounting shaft 20. The installation limit of the guide fixture 10 can be achieved through the structure of the mounting shaft 20 itself, without the need to set up a separate bracket for the guide fixture 10, saving costs and facilitating operation.

[0047] like Figures 3 to 8As shown, the second aspect of the present disclosure provides a mounting shaft 20 of a motor. As mentioned in the subject of the guide tooling 10 provided in the first aspect of the present disclosure, the mounting shaft 20 has a power shaft portion 21 for mounting a power component 30 and a guide shaft portion 22 coaxially connected to the power shaft portion 21. The guide shaft portion 22 has a guide surface 221. The mounting shaft 20 also has a positioning portion 24 arranged on the guide shaft portion 22. The positioning portion 24 is used to position and cooperate with the positioning and matching portion 12 on the main body 11 of the guide tooling 10 provided in the first aspect of the present disclosure, so that the power component 30 passes through the annular outer peripheral surface 111 of the main body 11 and the guide surface and then is sleeved on the power shaft portion 21.

[0048] In the above-mentioned embodiment, by providing a guide tool 10 for assisting the installation of the power component 30 in the axial direction of the installation shaft 20, the guide length of the installation shaft 20 in the axial direction can be increased, and then the axial length of the guide shaft portion 22 of the installation shaft 20 can be reduced, so that the axial length of the installation shaft 20 is reduced, thereby reducing the volume and weight of the installation shaft 20 and meeting the requirements of miniaturization of the motor.

[0049] In some embodiments, the axial length of the guide shaft portion 22 is less than or equal to 15 mm, so that the guide shaft portion 22 can meet the guiding requirements during the installation of the power component 30 on the mounting shaft 20, and the axial length of the mounting shaft 20 will not be longer due to the axial length of the guide shaft portion 22 being too long. In the embodiment, it is only exemplified that after using the guide tool 10, the axial dimension of the guide shaft portion 22 can be shortened to less than or equal to 15 mm, so as to significantly reduce the axial length of the mounting shaft of the motor. Of course, the axial length of the guide shaft portion 22 can also be greater than 15 mm, and the present disclosure does not make specific limitations on this. In some preferred embodiments, due to the use of the guide tool 10, the axial length of the guide shaft portion 22 can be less than or equal to 4 mm.

[0050] In some embodiments, the positioning portion 24 includes a protrusion or a groove, and the positioning matching portion 12 is configured as a structure that matches the positioning portion 24. For example, when the positioning portion 24 includes a groove, the positioning matching portion 12 may include a positioning protrusion 121 that matches the groove. This solution has been described in the first aspect of the present disclosure and will not be repeated here.

[0051] In addition, if Figures 3 to 5 As shown, the mounting shaft 20 includes a keyway 23 and a horn groove 240. The horn groove 240 extends from the end of the guide shaft portion 22 away from the power shaft portion 21 and gradually decreases toward the power shaft portion 21 and communicates with the keyway 23. The keyway 23 is at least partially located on the power shaft portion 21, the horn groove 240 is a positioning portion 24, and the keyway 23 is used to communicate with the guide groove 13 on the body 11 along the axial direction.

[0052] In the above-mentioned embodiment, the horn groove 240 is the positioning portion 24, and the positioning matching portion 12 on the guide tool 10 that is positioned and matched with the positioning portion 24 includes two positioning protrusions 121, which can be inserted into the horn groove 240 for positioning between the guide tool 10 and the installation shaft 20. The horn groove 240 extends from the end of the guide shaft portion 22 away from the power shaft portion 21 to the power shaft portion 21 and is connected with the key groove 23. That is, the opening of the horn groove 240 from the connection with the key groove 23 to the direction away from the key groove 23 is gradually enlarged, so as to facilitate the two positioning protrusions 121 of the guide tool 10 to be inserted into the horn groove 240. When the two positioning protrusions 121 of the guide tool 10 are inserted into the horn groove 240, the guide groove 13 on the body 11 of the guide tool 10 can be connected with the key groove 23 on the installation shaft 20 along the axial direction. As mentioned in the guide tooling 10 of the first aspect of the present disclosure, the guide groove 13 of the guide tooling 10 is connected to the key groove 23 on the mounting shaft 20, so that when the power component 30 is assisted in the installation by the guide tooling 10, the key of the power component 30 is guided into the key groove 23 of the mounting shaft 20 through the guide groove 13, which will not be repeated here.

[0053] In some embodiments, the connection between the horn groove 240 and the key groove 23 is located on the guide shaft portion 22, so that the entire power shaft portion 21 can be used to be inserted into the power component 30. That is, the entire power shaft portion 21 can be used to connect and cooperate with the power component 30. When the mounting shaft 20 is used for the stator or rotor, it can improve the operating power of the positioning or rotor, thereby improving the operating performance of the motor.

[0054] In addition, as described above, the guide shaft 22 is used to guide the power assembly 30 when it is installed on the motor's mounting shaft 20. After being guided by the guide shaft 22, the power assembly 30 is sleeved on the power shaft 21 of the mounting shaft 20. When the power assembly 30 begins to enter the guide shaft 22 and moves to the connection between the guide shaft 22 and the power shaft 21, the power assembly 30 and the mounting shaft 20 transition from a clearance fit to an interference fit. The connection between the horn groove 240 and the key groove 23 is located on the guide shaft 22, so that the horn groove 240 can be located in the area of ​​the guide shaft 22 for clearance fit with the power assembly 30, so as to prevent the side wall edge of the horn groove 240 from scratching the inner wall of the power assembly 30, so as to prevent the motor's operating performance from being affected.

[0055] In some embodiments not shown in the figures, the positioning portion 24 includes a protrusion or a groove, and the protrusion or the groove may also be formed on, for example, the end face of the guide shaft portion 22 facing away from the power shaft portion 21, so as to be plugged into and fit with the positioning mating portion 12 of the guide tooling 10, and the present disclosure does not make any specific limitation on this.

[0056] In some embodiments, the guide surface 221 of the guide shaft portion 22 can be configured in an appropriate form according to actual conditions. For example, the guide surface 221 can be configured as a conical surface. The conical surface abuts against the inner wall of the power component 30 to facilitate guiding the power component 30 through the guide shaft portion 22.

[0057] In addition, in order to make the power component 30 pass through the guide surface 221 more smoothly, the slope θ of the guide surface constructed as a conical slope 221 can range from 5° to 10°. It should be understood that the slope of the conical slope 221 can also take other angles, and the present disclosure does not limit this.

[0058] In some embodiments, the mounting shaft 20 further includes a supporting portion 25 connected to the guide shaft portion 22 , and the supporting portion 25 is used for plugging in a bearing or for plugging in a body 11 of the guide tooling 10 .

[0059] In the above-mentioned embodiment, after the motor is assembled, the support part 25 is used to be plugged into the bearing. When the power assembly 30 is installed on the mounting shaft 20, the support part 25 can be plugged into the body 11 of the guide fixture 10 to support the guide fixture 10. After the power assembly 30 is installed, the guide fixture 10 can be removed, and the support part 25 can be plugged into the bearing of the motor and rotatably connected to the housing or end cover of the motor in the finished state through the bearing. By sleeve-mounting the body 11 of the guide fixture 10 on the support part 25 of the mounting shaft 20, there is no need to set up a separate bracket and the guide fixture 10 can be supported, which saves costs and is easy to operate.

[0060] In addition, the mounting shaft 20 further includes a stopper 26 disposed between the power shaft portion 21 and the support portion 25 . The stopper 26 can limit the axial position of the bearing or the guide fixture 10 , which will not be described in detail here.

[0061] The third aspect of the present disclosure provides a motor, comprising a stator core, a rotor core, a pressure ring, and a mounting shaft 20 of the motor provided in the second aspect of the present disclosure, the power component 30 being at least one of the stator core and the pressure ring, or the power component 30 being at least one of the rotor core and the pressure ring.

[0062] In the above-mentioned embodiment, when the motor is an inner rotor motor, the power component 30 is at least one of a rotor core and a pressure ring; when the motor is an outer rotor motor, the power component 30 is at least one of a positioning core and a pressure ring, which will not be repeated here.

[0063] The fourth aspect of the present disclosure provides a vehicle, comprising the motor provided in the third aspect of the present disclosure. The vehicle has all the beneficial effects of the above motor, which will not be described in detail in the present disclosure.

[0064] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0065] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0066] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A guide tool, characterized in that: The mounting shaft of the auxiliary motor is used to install the power component, the mounting shaft includes a power shaft portion for installing the power component, a guide shaft portion coaxially connected to the power shaft portion, and a positioning portion arranged on the guide shaft portion, the guide shaft portion has a guide surface, and the guide tooling includes: A body having an annular outer peripheral surface; The positioning and matching portion is connected to the main body and is used for positioning and matching with the positioning portion so as to guide the power component to pass through the annular outer peripheral surface and the guide surface of the guide shaft portion and then be sleeved on the power shaft portion.

2. The guide tooling according to claim 1, characterized in that: The positioning matching portion is configured as a positioning protrusion or a positioning groove.

3. The guide tooling according to claim 1, characterized in that: The main body is provided with a guide groove, which is recessed in the annular outer peripheral surface and penetrates the main body in the axial direction, and is used to communicate with the key groove on the installation shaft.

4. The guide tooling according to claim 3, characterized in that: The positioning matching portion includes two positioning protrusions protruding from the body along the axial direction, an extension groove communicating with the guide groove is formed between the two positioning protrusions, and the guide groove is communicated with the key groove through the extension groove.

5. The guide tool according to claim 4, characterized in that: A positioning matching surface is arranged on a side of the positioning protrusion facing away from the extension groove.

6. The guide tool according to claim 1, characterized in that: The body is an annular body.

7. A motor mounting shaft, characterized in that: The installation shaft has a power shaft portion for installing a power component and a guide shaft portion coaxially connected to the power shaft portion, the guide shaft portion has a guide surface, and the installation shaft also has a positioning portion arranged on the guide shaft portion, the positioning portion is used to position and cooperate with the positioning matching portion on the main body of the guide tooling, so that the power component passes through the annular outer circumferential surface of the main body and the guide surface and then is sleeved on the power shaft portion.

8. The mounting shaft according to claim 7, characterized in that The axial length of the guide shaft portion is less than or equal to 15 mm.

9. The mounting shaft according to claim 7, characterized in that The positioning portion includes a protrusion and / or a groove.

10. The mounting shaft according to claim 7, characterized in that The mounting shaft includes a keyway and a horn groove, wherein the horn groove gradually decreases from an opening at one end of the guide shaft portion away from the power shaft portion, extends toward the power shaft portion and is connected with the keyway, the keyway is at least partially located on the power shaft portion, the horn groove is the positioning portion, and the keyway is used to be connected axially with the guide groove on the main body.

11. The mounting shaft according to claim 10, characterized in that The connecting point between the horn groove and the key groove is located on the guide shaft portion.

12. The mounting shaft according to claim 7, characterized in that The guide surface is a conical inclined surface, and the inclination of the conical inclined surface is 5° to 10°.

13. The mounting shaft according to claim 7, characterized in that The installation shaft also includes a supporting portion connected to the guide shaft portion, and the supporting portion is used for plugging in a bearing or for plugging in the body.

14. A motor, characterized in that: It comprises a stator core, a rotor core, a pressure ring and a mounting shaft as described in any one of claims 7 to 13, wherein the power component is at least one of the stator core and the pressure ring or the power component is at least one of the rotor core and the pressure ring.

15. A vehicle, characterized in that: Comprising the motor as claimed in claim 14.

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