New energy flat wire motor bearing installation tool

Abstract

The utility model discloses a new energy flat wire motor bearing installation tool which comprises a bearing press-fitting tool and a bearing installation tool, the bearing press-fitting tool comprises a bearing press-fitting rod and a first guide pin, the bearing installation tool comprises a positioning base, the top of the positioning base is provided with a guide pressing plate, and the guide pressing plate is connected with the bearing press-fitting rod. A bearing pressing plate is arranged in the bearing installation tool and connected with a bearing maintaining assembly, the bearing maintaining assembly comprises a sliding block, the sliding block is in sliding connection with the bearing pressing plate, the bottom of the sliding block is connected with a sliding rod, the end, away from the sliding block, of the sliding rod is rotationally connected with a bearing maintaining block, and a second guide pin is arranged at the front end of the bearing maintaining block. According to the utility model, through the arrangement of the bearing holding assembly, the falling of the inner ring of the four-point contact ball bearing and the falling of the bearing can be prevented, and through the positioning and guiding of the motor rotor main shaft guiding shaft and the bearing installation tool in the assembling process, the damage of an oil seal can be avoided, and the phenomenon that the inner wall of a stator and the outer wall of a rotor rub each other in the assembling process can also be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of motor bearing technology, and specifically relates to a bearing installation fixture for a new energy flat wire motor. Background Technology

[0002] For flat wire motors, due to the operating conditions, a four-point contact ball bearing is used at the front end of the rotor. To ensure lubrication of this bearing and prevent gearbox oil from entering the motor, a double oil seal structure is adopted at the front end of the motor. The entire assembly process is as follows: first, assemble the motor rotor and the rear end cover of the motor together; then, install the two oil seals into the grooves at the front end of the housing; then, slide the housing onto the motor rotor; finally, install the four-point contact ball bearing onto the motor spindle and the front end of the housing.

[0003] In actual production, the stator and rotor assembly process is generally carried out manually. Because the rotor contains magnets that can attract the stator, it is easy to cause the spindle to tilt and damage the oil seal lip. In addition, since the inner ring of the four-point contact ball bearing is a split structure, the auxiliary fixing and installation of the four-point contact ball bearing is also very difficult. If the inner ring of the four-point contact ball bearing is not supported, it is very likely to fall off during the installation process, affecting the assembly. Utility Model Content

[0004] The main purpose of this utility model is to provide a bearing installation fixture for a new energy flat wire motor, which solves the problem that in the existing flat wire motor stator and rotor assembly process, the inner ring of the four-point contact ball bearing is very likely to fall off during the installation process, affecting the assembly.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a bearing installation fixture for a new energy flat wire motor, comprising a bearing press-fit fixture and a bearing installation fixture. The bearing press-fit fixture includes a bearing press-fit rod and a first guide pin. The bearing installation fixture includes a positioning base, a guide pressure plate is provided on the top of the positioning base, a bearing pressure plate is provided inside the bearing installation fixture, and a bearing retaining assembly is connected to the bearing pressure plate. The bearing retaining assembly includes a slider, the slider and the bearing pressure plate are slidably connected, a sliding rod is rotatably connected to the bottom of the slider, a bearing retaining block is rotatably connected to the end of the sliding rod away from the slider, and a second guide pin is provided at the front end of the bearing retaining block. Preferably, a spring is sleeved on the second guide pin.

[0006] Furthermore, a spring is fitted onto the second guide pin.

[0007] Furthermore, it also includes the motor rotor spindle guide shaft.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. This utility model can prevent the inner ring of the four-point contact ball bearing from falling off and the bearing from falling off by setting a bearing retaining assembly. When the bearing pressing fixture is pressed down, the bearing retaining assembly retracts and then the bearing pressing fixture is pressed down again. The bearing is pressed into the housing and rotor by the bearing pressing plate. During this process, the rotor positioning guide fixture is always in the positioning state, which ensures the concentricity of the stator and rotor.

[0010] 2. This utility model uses the positioning and guidance of the motor rotor main shaft guide shaft and the bearing installation fixture to avoid damage to the oil seal even if the rotor has a suction force on the stator, and also avoids the phenomenon of the inner wall of the stator and the outer wall of the rotor rubbing against each other during the assembly process, thus ensuring the production quality of the flat wire motor. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of a new energy flat wire motor bearing installation fixture according to the present invention;

[0012] Figure 2 This is a bottom view of the mounting fixture for a new energy flat wire motor bearing according to the present invention.

[0013] Figure 3 This is a schematic diagram of the bearing retaining assembly of a new energy flat wire motor bearing mounting fixture according to the present invention.

[0014] In the diagram: 1. Bearing press-fit fixture; 11. Bearing press-fit rod; 12. First guide pin; 2. Bearing installation fixture; 21. Positioning base; 22. Guide pressure plate; 3. Bearing retaining assembly; 31. Protective cover; 32. Slider; 33. Bearing retaining block; 34. Second guide pin; 35. Slide rod; 36. Spring; 4. Bearing pressure plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] See Figure 1 This utility model discloses a bearing installation fixture for a new energy flat wire motor, including a bearing pressing fixture 1 and a bearing installation fixture 2. The bearing pressing fixture 1 includes a bearing pressing rod 11 and a first guide pin 12. The bearing installation fixture 2 includes a positioning base 21, and a guide pressure plate 22 is provided on the top of the positioning base 21. Further, see [link to related documentation]. Figure 2 The bearing mounting fixture 2 has a bearing pressure plate 4 inside. Furthermore, the bearing pressure plate 4 is connected to a bearing retaining assembly 3. (See [reference]). Figure 3 The bearing retaining assembly 3 includes a slider 32, which is slidably connected to the bearing pressure plate 4. Further, a slide rod 35 is rotatably connected to the bottom of the slider 32, and a bearing retaining block 33 is rotatably connected to the end of the slide rod 35 away from the slider 32. Further, a second guide pin 34 is provided at the front end of the bearing retaining block 33. Preferably, a spring 36 is sleeved on the second guide pin 34.

[0017] Furthermore, the new energy flat wire motor bearing installation fixture of this utility model also includes a motor rotor main shaft guide shaft.

[0018] This utility model, by setting a bearing retaining component 3, can prevent the inner ring of the four-point contact ball bearing from falling off and the bearing from falling off. When the bearing pressing fixture 1 is pressed down, the bearing retaining component 3 retracts, and then the bearing pressing fixture 1 continues to be pressed down. The bearing is pressed into the housing and rotor by the bearing pressing plate 4. During this process, the rotor positioning guide fixture is always in the positioning state, ensuring the concentricity of the stator and rotor.

[0019] The working principle of this utility model is as follows: During the assembly process of motor production, the motor rotor main shaft guide shaft is first installed on the motor main shaft, and the bearing mounting fixture 2 is installed on the front end of the stator housing. Then, the stator and rotor are assembled. In this way, even if the rotor has a suction force on the stator during the assembly process, the positioning and guidance of the motor rotor main shaft guide shaft and the bearing mounting fixture 2 can avoid damage to the oil seal and also avoid the phenomenon of the inner wall of the stator and the outer wall of the rotor rubbing against each other during the assembly process, thus ensuring the production quality of the flat wire motor. Moreover, since the motor main shaft can be straightened, the installation of the bearing is also easier.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new energy flat wire motor bearing installation tool, characterized in that: The application relates to a bearing press-fitting tool (1) and a bearing installation tool (2), wherein the bearing press-fitting tool (1) comprises a bearing press-fitting rod (11) and a first guide pin (12), the bearing installation tool (2) comprises a positioning base (21), the top of the positioning base (21) is provided with a guide pressing plate (22), the inside of the bearing installation tool (2) is provided with a bearing pressing plate (4), the bearing pressing plate (4) is connected with a bearing holding assembly (3), the bearing holding assembly (3) comprises a sliding block (32), the sliding block (32) and the bearing pressing plate (4) are in sliding connection, the bottom of the sliding block (32) is rotationally connected with a sliding rod (35), the end of the sliding rod (35) away from the sliding block (32) is rotationally connected with a bearing holding block (33), the front end of the bearing holding block (33) is provided with a second guide pin (34), and the second guide pin (34) is sleeved with a spring (36).

2. The new energy flat wire motor bearing installation tool according to claim 1, characterized in that: The application also relates to a motor rotor main shaft guide shaft.

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