Tool for assembling motor rotor into shell
By designing the motor rotor into the shell tooling, using the combination of the shell positioning table and the rotor positioning assembly, the problem of difficulty in ensuring the concentricity of the rotor and the shell and collision damage is solved, and a high-precision and damage-free assembly effect is achieved.
Patent Information
- Application Number
- CN202421207486.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-05-30
AI Technical Summary
In the production process of large motors, the concentricity between the rotor and the shell is difficult to ensure, and it is easy to cause collision damage between the rotor and the shell during manual assembly.
A motor rotor-entry tooling is designed, including a housing positioning table and a rotor positioning assembly. Through the movement of the housing positioning table and the use of the top tightening parts, the rotor and the shell are ensured and the collision is avoided.
The concentricity between the rotor and the shell is ensured, which avoids rotor damage and improves assembly accuracy and efficiency.
Smart Images
Figure CN222563672U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor assembly, in particular to a motor rotor shell insertion tool. Background Art
[0002] In the production process of large motors, the rotor needs to be inserted into the motor housing to complete the assembly. Since the motor rotor is equipped with a magnet and has strong magnetism, and the gap between the rotor and the housing is small, during manual assembly, the rotor with the magnet is easily attracted to the housing, causing the rotor to collide with the inner wall of the housing and cause damage. In addition, manual assembly is also difficult to ensure concentricity, which affects subsequent assembly processes such as end covers. Utility Model Content
[0003] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and to provide a motor rotor shell insertion tooling, which can ensure the concentricity of the rotor and the shell while avoiding damage to the rotor.
[0004] The purpose of this utility model is achieved through the following technical solutions:
[0005] A motor rotor shell insertion tool comprises a machine base, a shell positioning platform slidably connected to the base along the length direction, brackets arranged at both ends of the base in the length direction, and rotor positioning assemblies respectively arranged on opposite surfaces of the two brackets, wherein the rotor positioning assembly comprises a fixed push rod and an adjustable push rod, the length of the fixed push rod or the adjustable push rod is greater than the length of the motor shell, and the shell positioning platform is provided with a tightening member for tightening the opposite sides of the shell.
[0006] As a preferred embodiment of the utility model, the adjusting push rod includes a rod sleeve and a telescopic rod, the telescopic rod is threadedly connected to the inner wall of the rod sleeve, and both ends of the telescopic rod extend out of the rod sleeve.
[0007] As a preferred embodiment of the present invention, a rotating hand wheel is provided at one end of the telescopic rod close to the outside of the tooling.
[0008] As a preferred embodiment of the present invention, one end of the fixed push rod and / or the adjustable push rod close to the tooling is threadedly connected with a tightening nut.
[0009] As a preferred embodiment of the present invention, the opposite ends of the fixed push rod and the adjustable push rod are both provided with conical heads.
[0010] As a preferred embodiment of the utility model, the jacking member includes an angle code and a jacking bolt, the angle code includes a horizontal plate and a vertical plate which are perpendicular to each other at one end, and the jacking bolt is threadedly connected to the vertical plate.
[0011] As a preferred embodiment of the present invention, the horizontal plate is provided with installation strip holes along the length direction of the tightening bolts.
[0012] As a preferred embodiment of the present invention, the plurality of tightening members are respectively arranged at four corners of the housing positioning platform.
[0013] As a preferred embodiment of the utility model, a screw rod and a driving motor are provided at the lower portion of the base, and a nut threadedly connected to the screw rod is provided at the lower side of the housing positioning platform.
[0014] As a preferred embodiment of the present invention, a buffer pad is provided on one side of the bracket facing the housing positioning platform.
[0015] The utility model has the advantages that the motor housing and the rotor are coaxially positioned by using the housing positioning platform and the rotor positioning assembly respectively, and then the motor housing is sleeved onto the rotor by moving the housing positioning platform, which not only ensures the concentricity between the rotor and the housing, but also avoids damage caused by collision between the rotor and the housing. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of the structure of a motor rotor shell inserting tool provided in this embodiment 1;
[0017] Figure 2 This is a schematic diagram of the use status of this embodiment 1;
[0018] Figure 3 This is a schematic diagram of the use status of this embodiment 1;
[0019] Figure 4 This is a schematic diagram of the use status of this embodiment 1;
[0020] Figure 5 This is a schematic diagram of the use status of this embodiment 1;
[0021] Figure 6 Schematic diagram of the structure of the tensioning member in Embodiment 1;
[0022] Figure 7 A schematic diagram of the structure of a motor rotor shell inserting tooling provided in this embodiment 2;
[0023] In the figure: 1-base; 2-housing positioning platform; 3-bracket; 41-fixed push rod; 42-adjustable push rod; 421-rod sleeve; 422-telescopic rod; 423-rotating hand wheel; 424-tightening nut; 5-tightening member; 511-horizontal plate; 512-vertical plate; 52-tightening bolt; 61-slide rail; 62-slider; 7-motor housing; 8-rotor; 9-driving motor. DETAILED DESCRIPTION
[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0025] Example 1
[0026] like Figure 1 As shown, this embodiment provides a motor rotor shell inserting tool, including a base 1, a shell positioning platform 2 slidably connected to the base 1 along the length direction, brackets 3 arranged at both ends of the base 1 in the length direction, and rotor positioning components respectively arranged on the opposite surfaces of the two brackets 3, the rotor positioning component includes Figure 1 The fixed push rod 41 on the right and the adjustable push rod 42 on the left, the length of the adjustable push rod 42 is greater than the length of the motor housing 7, while the length of the fixed push rod 41 is shorter; the housing positioning platform 2 is provided with a tightening member 5 for tightening the opposite sides of the housing. Among them, two slide rails 61 are provided on the base, and a corresponding slider 62 is provided at the bottom of the housing positioning platform 2 to achieve stable sliding of the housing positioning platform on the base.
[0027] The working principle of this tool is: first move the housing positioning platform 2 to below the gap between the fixed top rod 41 and the adjustable top rod 42, that is, Figure 1 The motor housing 7 is placed on the housing positioning platform, and then the housing is fixed on the housing positioning platform by a tightening member, such as Figure 2 Then the housing positioning platform 2 is moved to the left to expose the rotor assembly space between the fixed push rod 41 and the adjusting push rod 42. During this process, the adjusting push rod 42 is just inserted into the motor housing 7 and extends from the right end of the housing, as shown in FIG. Figure 3 Then, the rotor 8 is assembled between the fixed push rod 41 and the adjustable push rod 42, and the adjustable push rod 42 is adjusted toward the fixed push rod 41 to tighten and fix the rotor 8, as shown in FIG. Figure 4 Finally, the housing positioning platform with the housing fixed thereon is moved to the right so that the housing is placed on the rotor, completing the concentric assembly of the rotor and the housing, as shown in FIG. Figure 5 As shown, the tightening member 5 and the adjusting push rod 42 can then be loosened to remove the assembled motor.
[0028] Specifically, the adjusting push rod 42 includes a rod sleeve 421 and a telescopic rod 422. The telescopic rod 422 is threadedly connected to the inner wall of the rod sleeve 421, and both ends of the telescopic rod 422 extend out of the rod sleeve 421. Among them, a flange is provided at one end of the rod sleeve 421, so that it can be installed on the bracket 3 using the flange. Correspondingly, the fixed push rod 41 is also installed using the flange. The telescopic rod 422 is threadedly connected to the rod sleeve 421, so that the telescopic movement along the rod sleeve can be achieved by rotating the end of the telescopic rod close to the outside of the tooling, that is, the action of tightening the rotor can be achieved. In order to facilitate the rotation operation of the telescopic rod, a rotating hand wheel 423 can be set at the end of the telescopic rod 422 close to the outside of the tooling.
[0029] In order to ensure the concentricity of the rotor and the shell, the fixed push rod 41 and the adjusting push rod 42 are provided with conical heads 401 at the opposite ends to be inserted into the holes at the ends of the rotor 8, so that the rotor and the two push rods are in a coaxial relationship, and the push rods and the shell are in a preset coaxial relationship, so that the concentricity of the two can be ensured after the rotor is inserted into the shell.
[0030] like Figure 6 As shown, the jacking member 5 includes an angle code and a tightening bolt 52. The angle code includes a horizontal plate 511 and a vertical plate 512 which are perpendicular to each other at one end. The tightening bolt 52 is threadedly connected to the vertical plate 512. The horizontal plate 511 is used to connect the housing positioning platform 2. When in use, the motor housing 7 is placed between the angle codes, and then the tightening bolt 52 is rotated toward one side of the housing to achieve tightening and fixing of the housing. Of course, considering the stability of the fixation, the jacking member 5 has four angle codes which are arranged at four corners on the housing positioning platform 2. The installation positions of the four angle codes will also affect the accuracy of the position of the motor housing. Therefore, in order to balance the errors in the tooling processing process, the horizontal plate 511 is provided with installation strip holes along the length direction of the tightening bolt 52, so that the installation position of the angle code can be fine-tuned to ensure that the motor housing can be fixed in the correct position.
[0031] In order to reduce the labor intensity of the staff, the movement of the shell positioning platform can be designed to be electric, that is, a screw and a drive motor 9 are set at the lower part of the base, and a nut threadedly connected to the screw is set at the lower side of the shell positioning platform 2. The drive motor 9 drives the screw to rotate, and the screw drives the nut and the shell positioning platform to move. The use of electric movement will improve the movement efficiency of the shell positioning platform, and it will be more likely to collide with the brackets at both ends of the moving direction. Therefore, we can set a buffer pad on the side of the bracket 3 facing the shell positioning platform 2 to reduce collisions and avoid damage to tooling.
[0032] Example 2
[0033] like Figure 7As shown, different from Example 1, in this embodiment, the fixed push rod 41 is on the left, and its length is greater than the length of the motor housing 7, and the adjustable push rod 42 is on the right, and its length is relatively short, so that we can shorten the length of the telescopic rod 422 and reduce the friction resistance during rotation. In addition, unlike the fixing method in Example 1 in which the conical head 401 is inserted into the hole at the end of the rotor, in this embodiment, a tightening nut 424 is threadedly connected to the telescopic rod 422 of the adjustable push rod 42. When the telescopic rod 422 is adjusted to the right position but not completely tightened against the rotor, the tightening nut 424 is rotated toward the end of the rotor, and the tightening nut is used to tighten the rotor to achieve the fixation of the rotor. In this way, the problem of the telescopic rod driving the rotor to rotate can be avoided in the process of using the telescopic rod to completely tighten the rotor. At the same time, there is a larger contact area between the tightening nut and the rotor, and a reliable tightening effect can be achieved without inserting it into the rotor.
[0034] The above is only a preferred specific implementation of the utility model, which is a realization method based on the overall concept of the utility model, and the protection scope of the utility model is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A motor rotor shell inserting tool, characterized in that: It includes a machine base, a shell positioning platform slidably connected to the base along the length direction, brackets arranged at both ends of the base in the length direction, and a rotor positioning assembly respectively arranged on the opposite surfaces of the two brackets. The rotor positioning assembly includes a fixed push rod and an adjustable push rod. The length of the fixed push rod or the adjustable push rod is greater than the length of the motor shell. The shell positioning platform is provided with a tightening member for tightening the opposite sides of the shell.
2. The motor rotor housing inserting tool according to claim 1, characterized in that: The adjusting top rod comprises a rod sleeve and a telescopic rod, wherein the telescopic rod is threadedly connected to the inner wall of the rod sleeve, and both ends of the telescopic rod extend out of the rod sleeve.
3. The motor rotor housing inserting tool according to claim 2, characterized in that: A rotating hand wheel is arranged at one end of the telescopic rod close to the outside of the tooling.
4. The motor rotor housing inserting tool according to claim 2, characterized in that: One end of the fixed push rod and / or the adjustable push rod close to the tooling is threadedly connected with a tightening nut.
5. The motor rotor housing inserting tool according to claim 1, characterized in that: Conical heads are arranged at opposite ends of the fixed push rod and the adjustable push rod.
6. The motor rotor housing inserting tool according to claim 1, characterized in that: The jacking member comprises an angle code and a jacking bolt. The angle code comprises a horizontal plate and a vertical plate which are perpendicular to each other at one end. The jacking bolt is threadedly connected to the vertical plate.
7. The motor rotor housing inserting tool according to claim 6, characterized in that: The horizontal plate is provided with installation strip holes along the length direction of the tightening bolts.
8. The motor rotor housing inserting tool according to claim 1, characterized in that: The pressing members include four members which are respectively arranged at four corners of the housing positioning platform.
9. The motor rotor housing inserting tool according to claim 1, characterized in that: A screw rod and a driving motor are arranged at the lower part of the base, and a nut threadedly connected to the screw rod is arranged at the lower side of the housing positioning platform.
10. The motor rotor housing inserting tool according to claim 1, characterized in that: A buffer pad is provided on one side of the bracket facing the housing positioning platform.