Motor rotary transformer tool box

Abstract

The utility model provides a motor rotary transformer tool box, and relates to the field of motor testing. The motor rotary transformer tool box comprises a supporting vertical face, a connecting shaft, a rotary transformer rotor and a rotary transformer stator. The supporting vertical face is provided with a mounting hole. The connecting shaft comprises a large-diameter section and a small-diameter section extending out of the section of the large-diameter section, the outer contour of the large-diameter section and the mounting hole are configured to be in transition fit or interference fit, and the large-diameter section is detachably connected with a motor shaft and synchronously rotates with the motor shaft; the rotary transformer rotor is detachably arranged on the periphery of the small-diameter section in a limiting and sleeving mode and rotates synchronously with the small-diameter section. The rotary transformer stators are arranged on the periphery of the rotary transformer rotor in a sleeving mode at intervals, and the rotary transformer stators are detachably connected to the supporting vertical face in a limiting mode. By adopting the scheme, the rotary transformer stator and the rotary transformer rotor of different sizes and models can be adapted, and the rotary transformer stator and the rotary transformer rotor are convenient to disassemble.

Description

Technical Field

[0001] The present disclosure relates to the field of motor testing, and in particular to a motor resolver tooling box. Background Art

[0002] At present, in the development process of new energy vehicle motor controllers, it is necessary to perform functional debugging, durability testing, offline testing, etc. These tasks all require the acquisition of the motor's resolver signal. Generally, a physical motor is used to build a test bench to cooperate with the development of the motor controller. This type of development work is not only time-consuming, but also requires the motor to occupy a dynamometer in each test, and only one motor can be used on each test bench to carry out work, which undoubtedly leads to the problem of long-term occupancy of test bench resources. In addition, the heat dissipation problem of the motor when working for a long time and with high torque, as well as the safety problem of high-speed operation of the motor, must also be considered in the test.

[0003] The existing motor resolver tooling has a complex structure and cannot realize the rapid disassembly and installation of the resolver stator and the resolver rotor. Moreover, the structure can only be adapted to one set of resolver stator and resolver rotor. Furthermore, the structure is heavy and inconvenient to move and carry. Utility Model Content

[0004] The present disclosure provides a motor resolver tooling box to at least solve the above technical problems existing in the prior art.

[0005] According to a first aspect of the present disclosure, a motor resolver tooling box is provided, comprising: a supporting facade, a connecting shaft, a resolver rotor and a resolver stator, wherein the supporting facade has a mounting hole; the connecting shaft comprises a large diameter section and a small diameter section extending from a cross section of the large diameter section, an outer contour of the large diameter section and the mounting hole are configured as a transition fit or an interference fit, the large diameter section is detachably connected to a motor shaft and rotates synchronously with the motor shaft; the resolver rotor is detachably limitedly sleeved on the outer periphery of the small diameter section and rotates synchronously with the small diameter section; the resolver stator is spacedly sleeved on the outer periphery of the resolver rotor, and the resolver stator is detachably limitedly connected to the supporting facade.

[0006] In one possible implementation manner, the resolver stator has a boss structure on its end surface, and the motor resolver tooling box also includes a pressure plate, which is pressed on at least one side of the boss structure, and the resolver stator is limitedly installed between the pressure plate and the supporting vertical surface.

[0007] In one possible implementation manner, the motor resolver tooling box further includes a positioning piece, and the positioning piece passes through the end face of the small diameter section and the large diameter section along its own axial direction and is detachably connected to the motor shaft.

[0008] In one possible implementation, the motor resolver assembly box further includes an isolating member, which is installed between the positioning member and the end surface of the small-diameter section in a limiting manner, and the isolating member at least partially covers the end surface of the resolver rotor.

[0009] In one embodiment, the motor resolver tooling box also includes a first U-shaped sheet metal part and a second U-shaped sheet metal part, which are detachably connected by buckling up and down to form a box structure, and the supporting facade is formed on a side surface of the first U-shaped sheet metal part with a bottom surface.

[0010] In one possible implementation, the motor resolver tooling box further includes a motor controller, a power switch and a motor, the motor controller being electrically connected to the power switch and the motor respectively, each of the motors having a motor shaft, the motor controller and the power switch being mounted on the supporting facade, and the motor being located on the bottom surface of the first U-shaped sheet metal part.

[0011] In one possible implementation manner, the motor resolver tooling box further includes a power socket, which is installed on the other side of the first U-shaped sheet metal part, and the power socket is used to provide a current input interface.

[0012] In one possible implementation manner, the motor resolver assembly box further includes an AC servo driver, which is used to convert direct current into alternating current, and the AC servo driver is electrically connected to the motor controller.

[0013] In one possible implementation, the motor resolver tooling box also includes a bracket, which is detachably connected to the bottom surface of the first U-shaped sheet metal part, and is used to support the motor. The motor shaft extends out of a side surface of the bracket, and the bracket is spaced apart from the supporting vertical surface, and the tail of the large diameter section is embedded in the side surface of the bracket.

[0014] In one embodiment, the first U-shaped sheet metal part and the second U-shaped sheet metal part are both constructed as U-shaped plates with inner flanges on the top surfaces of the two side surfaces, each inner flange is provided with a welding nut, and the first U-shaped sheet metal part and the second U-shaped sheet metal part are detachably connected by screws matching the welding nuts;

[0015] Foot cups are arranged at the four corners of the bottom surface of the first U-shaped sheet metal component, and the bottom surface of the first U-shaped sheet metal component is detachably connected to the second U-shaped sheet metal component through the foot cups.

[0016] The motor resolver tooling box disclosed in the present invention has advantages such as simple installation structure of resolver stator and rotor, few parts, etc.; the entire motor resolver tooling box has advantages such as small size and light weight, etc. The overall structure is simple, the resolver stator and resolver rotor can be quickly disassembled and installed, and other types of resolvers can be adapted by changing very few parts, so that the motor resolver tooling box is small in size and light in weight, and is easy to move and carry.

[0017] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0019] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0020] Figure 1 The overall shaft side structure schematic diagram of the motor resolver tooling box according to the embodiment of the present disclosure is shown;

[0021] Figure 2 A schematic diagram of the box installation structure of the motor resolver tool box according to the embodiment of the present disclosure is shown;

[0022] Figure 3 A partial structural schematic diagram of a motor resolver tooling box according to an embodiment of the present disclosure is shown;

[0023] Figure 4 A schematic cross-sectional structure diagram of an assembly structure formed by a resolver stator, a resolver rotor and a motor in a motor resolver tooling box according to an embodiment of the present disclosure is shown;

[0024] Figure 5 The disassembled structure of the motor, the connecting shaft and the rotary rotor of the embodiment of the present disclosure is shown. Figure 1 ;

[0025] Figure 6 The disassembled structure of the motor, the connecting shaft and the rotary rotor of the embodiment of the present disclosure is shown. Figure 2 .

[0026] Description of the numbers in the figure:

[0027] 001-motor resolver tooling box; 1-handle; 2-second U-shaped sheet metal; 201-upper plate welding nut; 3-pressing plate; 4-resolver stator; 5-isolator; 6-resolver rotor; 7-first U-shaped sheet metal; 701-lower plate welding nut; 8-power switch; 9-motor controller; 10-power socket; 11-foot cup; 12-bracket; 13-motor; 14-AC servo drive; 15-connecting shaft; 16-positioning piece; 17, screw; 1301-first protrusion structure; 1501-first groove structure; 1502-second groove structure; 401-second protrusion structure; 601, third protrusion structure; 602-third groove structure; 20-key. DETAILED DESCRIPTION

[0028] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0029] The existing motor resolver tooling has a complex structure, and the resolver stator and resolver rotor cannot be quickly disassembled and assembled, resulting in one tooling being able to adapt to only one type of motor resolver. The overall tooling is heavy and inconvenient to move or carry around.

[0030] To alleviate the above problems, refer to Figure 1-Figure 6 The embodiment of the present disclosure provides a motor 13 rotary transformer tooling box 001, including: a first U-shaped sheet metal part 7 and a second U-shaped sheet metal part 2, wherein the first U-shaped sheet metal part 7 and the second U-shaped sheet metal part 2 are both constructed as U-shaped plates with inner flanges on the top surfaces of the two side surfaces, each inner flange is provided with a welding nut, and the first U-shaped sheet metal part 7 and the second U-shaped sheet metal part 2 are detachably connected by screws matching the welding nuts; specifically, the second U-shaped sheet metal part 2 is positioned and assembled with the first U-shaped sheet metal part 7 in a snap-fitting and moving manner from top to bottom, and a box structure is formed between the two in the assembled state. In addition, foot cups 11 are provided at the four corners of the bottom surface of the first U-shaped sheet metal part 7, and the bottom surface of the first U-shaped sheet metal part 7 is detachably connected to the second U-shaped sheet metal part 2 through the foot cups 11.

[0031] For example, four lower plate welding nuts 701 are welded at the four corner positions of the inner turning edge of the first U-shaped sheet metal part 7; four upper plate welding nuts 201 are welded at the four corner positions of the inner turning edge of the second U-shaped sheet metal part 2. When the first U-shaped sheet metal part 7 and the second U-shaped sheet metal part 2 are installed, the upper part is connected by screws, and the lower part is connected by the foot cup 11, which also has supporting and shock absorbing functions.

[0032] For example, in order to facilitate movement and carrying, a handle 1 is protruding from the top surface of the second U-shaped sheet metal part 2. The embodiment of the present disclosure does not limit the shape, structure and material of the handle, as long as it is convenient to use.

[0033] In order to rotate the motor shaft, a bracket 12 is provided on the bottom surface of the first U-shaped sheet metal 7, and the bracket 12 is detachably connected to the bottom surface of the first U-shaped sheet metal 7. The bracket 12 is used to support the motor 13. For example, the bracket 12 is constructed as an L-shaped structure, and the L-shaped structure includes a horizontal plate and a vertical plate. The motor 13 is stably arranged on the surface of a horizontal plate. For example, the motor 13 is detachably connected to the bracket 12 by screws. In addition, the motor shaft extends out of a side of the bracket 12, which can be understood as the motor shaft extending out of the vertical plate. Further, the vertical plate is spaced apart from a side of the first U-shaped sheet metal 7.

[0034] In order to realize the control of the parameters such as the rotation speed and direction of the rotary rotor, the rotary tool box 001 of the embodiment of the present disclosure also includes a supporting facade, a connecting shaft 15, a rotary rotor 6 and a rotary stator 4. The supporting facade is formed on one side of the first U-shaped sheet metal part 7, and the supporting facade has a mounting hole; the connecting shaft 15 includes a large diameter section and a small diameter section extending from the cross section of the large diameter section, and the outer contour of the large diameter section and the mounting hole are configured as a transition fit or an interference fit, and the large diameter section is detachably connected to the motor shaft and rotates synchronously with the motor shaft; the rotary rotor 6 is detachably limitedly sleeved on the outer periphery of the small diameter section and rotates synchronously with the small diameter section; the rotary stator 4 is spaced and sleeved on the outer periphery of the rotary rotor 6, and the rotary stator 4 is detachably limitedly connected to the supporting facade. In this way, the rotary stator 4 and the rotary rotor 6 can be quickly disassembled and assembled while the relevant parameters of the motor shaft can be tested, and the assembly of the rotary stator 4 and the rotary rotor 6 of motor shafts of different models can be adapted.

[0035] Considering the realization of rapid assembly and disassembly of the resolver stator 4 relative to the supporting facade, the resolver stator 4 of the embodiment of the present disclosure has a boss structure on its end surface, referring to the second protrusion structure 401. The resolver tooling box 001 also includes a pressure plate 3, which is pressed on at least one side of the aforementioned boss structure, that is, at least one side of the second protrusion structure 401, and the resolver stator 4 is limitedly installed between the pressure plate 3 and the supporting facade. In this way, the end face of one side of the resolver stator 4 is directly attached to the supporting facade, and the pressure plate 3 provides a locking force toward the supporting facade for the resolver stator 4 through the boss structure on the other side of the resolver stator 4. Specifically, the pressure plate 3 is positioned and locked with the supporting facade by a positioning bolt.

[0036] Considering that the rotary rotor 6 can rotate synchronously with the motor shaft through the connecting shaft 15, a first protrusion structure 1301 is provided on the outer peripheral surface of the motor shaft, and correspondingly, the large diameter section of the connecting shaft 15 has an inner hole, and the inner hole is provided with a first groove structure 1501 engaged with the first protrusion structure 1301. In this way, there will be no relative movement between the large diameter section of the connecting shaft 15 and the motor shaft along their own circumferential direction. In addition, a second groove structure 1502 is provided on the outer periphery of the small diameter section of the connecting shaft 15, and correspondingly, a third protrusion structure 601 engaged with the second groove structure 1502 is provided on the inner wall of the rotary rotor 6. In this way, there will be no relative movement between the small diameter section of the connecting shaft 15 and the rotary rotor 6 along their own circumferential direction. Furthermore, the embodiment of the present disclosure also includes an isolating member 5 and a positioning member 16. The positioning member 16 passes through the end face of the small diameter section and the large diameter section along its own axial direction and is detachably connected to the motor shaft. The isolating member 5 is a washer, which is limitedly installed between the positioning member 16 and the end face of the small diameter section, and the washer at least partially covers the end face of the resolver rotor 6. In this way, the positioning member 16 provides a locking force toward the connecting shaft 15 for the resolver rotor 6 through the washer, and the resolver rotor 6, the connecting shaft 15 and the motor shaft will not move along their own axial direction, so that the resolver rotor 6 can achieve synchronous rotation with the motor shaft while also achieving quick loading and unloading.

[0037] Considering the functional realization of the overall equipment, the rotary transformer tooling box 001 provided in the embodiment of the present disclosure also includes an AC servo driver 14, a motor controller 9, a power switch 8, a power socket 10 and a motor 13. Among them, the AC servo driver 14 is used to convert direct current into alternating current, the motor 13 controller 9 is used to adjust the speed, direction and other parameters of the motor 13, the power switch 8 is the tooling box current on-off switch, and the power socket 10 is the tooling box current input interface. Specifically, the AC servo driver 14 is electrically connected to the motor controller 9, and the motor controller 9 is electrically connected to the power switch 8 and the motor 13 respectively. Each motor 13 has a motor shaft. The motor controller 9 and the power switch 8 are installed on the supporting facade, and the motor 13 is located on the bottom surface of the first U-shaped sheet metal part 7; the power socket 10 is installed on the other side of the first U-shaped sheet metal part 7.

[0038] In summary, in the resolver tooling box 001 of the embodiment of the present disclosure, the inner ring of the pressure plate 3 is slightly larger than the inner ring of the resolver stator 4 to ensure the coaxiality between the resolver stator 4 and the resolver rotor 6. The first U-shaped sheet metal part 7 is welded with two lower plate welding nuts 701. Two screws fix the resolver stator 4 to the first U-shaped sheet metal part 7 through the pressure plate 3. The connecting shaft 15 is connected with the first protruding structure 1301 of the motor shaft of the motor 13 through the first groove structure 1501, and the resolver rotor 6 is connected with the second groove structure 1502 of the connecting shaft 15 through the third protruding structure 601, and finally the above parts are fastened with screws and washers. For resolver rotors 6 with protruding structures on the inner rings of different models, they can be adapted by modifying the size of the connecting shaft 15. Other parts, such as washers and pressure plates 3, can be adapted with or without modification as appropriate. When disassembling, just remove the screws, and the washers, resolver rotor 6, connecting shaft 15, pressure plate 3 and resolver stator 4 can be removed smoothly in sequence. When installing other types of resolvers, the resolver stator 4, resolver rotor 6 and their matching parts can be installed in the reverse order of disassembly, so as to achieve the purpose of quick replacement and further realize the function of testing different types of resolvers.

[0039] For the resolver rotor 6 with grooves on the inner ring, refer to Figure 6 and Figure 5 By comparison, the assembly can be achieved by using the connecting shaft 15 and the key 20. The connecting shaft 15 has a first groove structure 1501 that can match the first protrusion structure 1301 of the motor shaft; the connecting shaft 15 has a second groove structure 1502 that can match the key 20, thereby matching the third groove structure 602 of the resolver rotor 6, and then completing the assembly. Similarly, the connecting shaft 15, the key 20 and other parts can be modified to adapt to different models of resolver rotors 6 with grooves on the inner ring, thereby realizing the function of testing different models of resolvers.

[0040] The rotary transformer tool box 001 of the embodiment of the present disclosure has a small overall structure size and light weight, and is easy to move and carry.

[0041] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of this disclosure can be achieved, and this document is not limited here.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A motor resolver tooling box, characterized in that: include: A supporting facade, wherein the supporting facade has a mounting hole; A connecting shaft, the connecting shaft comprising a large diameter section and a small diameter section extending from a cross section of the large diameter section, the outer contour of the large diameter section and the mounting hole being configured as a transition fit or an interference fit, the large diameter section being detachably connected to the motor shaft and rotating synchronously with the motor shaft; A resolver rotor, the resolver rotor being detachably limitedly sleeved on the outer periphery of the small-diameter section and rotating synchronously with the small-diameter section; The resolver stator is sleeved at intervals on the outer circumference of the resolver rotor, and the resolver stator is detachably connected to the supporting vertical surface in a limited manner.

2. The motor resolver tooling box according to claim 1, characterized in that: The resolver stator has a boss structure on its end surface, and the motor resolver tooling box also includes a pressure plate, which is pressed on at least one side of the boss structure, and the resolver stator is limitedly installed between the pressure plate and the supporting vertical surface.

3. The motor resolver tooling box according to claim 1, characterized in that: The motor resolver tooling box also includes a positioning piece, which passes through the end surface of the small diameter section and the large diameter section along its own axial direction and is detachably connected to the motor shaft.

4. The motor resolver tooling box according to claim 3 is characterized in that: The motor resolver assembly box also includes an isolating member, which is installed between the positioning member and the end surface of the small-diameter section in a limiting manner, and the isolating member at least partially covers the end surface of the resolver rotor.

5. The motor resolver tooling box according to claim 1, characterized in that: The motor resolver tooling box also includes a first U-shaped sheet metal part and a second U-shaped sheet metal part, which are detachably connected by buckling up and down to form a box structure, and the supporting facade is formed on a side surface of the first U-shaped sheet metal part with a bottom surface.

6. The motor resolver tooling box according to claim 5, characterized in that: The motor resolver tooling box also includes a motor controller, a power switch and a motor. The motor controller is electrically connected to the power switch and the motor respectively. Each motor has a motor shaft. The motor controller and the power switch are installed on the supporting facade, and the motor is located on the bottom surface of the first U-shaped sheet metal part.

7. The motor resolver tooling box according to claim 6, characterized in that: The motor resolver tooling box also includes a power socket, which is installed on the other side of the first U-shaped sheet metal part and is used to provide a current input interface.

8. The motor resolver tooling box according to claim 6, characterized in that: The motor resolver tooling box also includes an AC servo driver, which is used to convert direct current into alternating current. The AC servo driver is electrically connected to the motor controller.

9. The motor resolver tooling box according to claim 5, characterized in that: The motor resolver tooling box also includes a bracket, which is detachably connected to the bottom surface of the first U-shaped sheet metal part, and is used to support the motor. The motor shaft extends out of a side surface of the bracket, and the bracket is spaced apart from the supporting vertical surface. The tail of the large diameter section is embedded in the side surface of the bracket.

10. The motor resolver tooling box according to claim 5, characterized in that: The first U-shaped sheet metal part and the second U-shaped sheet metal part are both constructed as U-shaped plates with inner flanges on the top surfaces of the two side surfaces, each inner flange is provided with a welding nut, and the first U-shaped sheet metal part and the second U-shaped sheet metal part are detachably connected by screws matching the welding nuts; Foot cups are arranged at the four corners of the bottom surface of the first U-shaped sheet metal component, and the bottom surface of the first U-shaped sheet metal component is detachably connected to the second U-shaped sheet metal component through the foot cups.

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