Press fitting tool for refrigerator fan

By designing the compression tooling of positioning components and pressing components, the installation difficulties and inclination problems of the fan and motor shaft are solved, and efficient and stable installation quality is achieved.

CN223251018UActive Publication Date: 2025-08-22重庆欧盼科技发展有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422942647.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-08-22
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

In the prior art, the installation of the refrigerator fan and the motor shaft is difficult and prone to tilt, resulting in poor installation quality.

Method used

A press-fit tooling including a positioning assembly and a press-fit assembly is designed. The motor is placed through the positioning assembly, and the fan is pressed into the motor shaft by using the press-fit assembly to achieve the installation of interference fit.

Benefits of technology

The installation process of the fan and motor is simplified, the installation quality is ensured, and the fan tilt phenomenon is avoided.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223251018U_ABST
    Figure CN223251018U_ABST
Patent Text Reader

Abstract

The utility model discloses a refrigerator fan press-fitting tool which comprises a bottom plate, a positioning assembly used for positioning and placing a motor is arranged on the bottom plate, a vertical plate extending upwards is arranged at the right end of the bottom plate, a pressing assembly corresponding to the positioning assembly is arranged on the vertical plate, and the pressing assembly can press the fan into a motor shaft. The positioning assembly and the pressing assembly are arranged, placement of the motor is achieved through the positioning assembly, the draught fan is pressed into the motor shaft through the pressing assembly, interference installation between the draught fan and the motor is achieved, installation is convenient, and the installation quality can be effectively guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerator component assembly, and particularly relates to a press-fitting tool for a refrigerator fan. Background Art

[0002] To dissipate heat from the refrigerator compressor, a fan is installed, driven by a separate motor. During installation, the fan needs to be mounted on the motor shaft. Currently, manual installation is the primary method. However, due to the interference fit between the fan and the motor shaft, manual installation is difficult and can easily cause the fan to tilt after installation. Utility Model Content

[0003] The utility model proposes a press-fitting tool for a refrigerator fan, which not only facilitates the installation between the fan and the motor, but also ensures the installation quality.

[0004] To this end, the technical solution adopted by the present invention is: a pressing tool for a refrigerator fan, including a base plate, a positioning assembly for positioning the power motor is provided on the base plate, a vertical plate extending upward is provided at the right end of the base plate, and a clamping assembly corresponding to the positioning assembly is provided on the vertical plate, and the clamping assembly can press the fan onto the motor shaft.

[0005] As a preferred option in the above scheme, the positioning assembly includes a positioning plate and a positioning seat arranged on the base plate, the positioning seat is provided with a placement hole for placing the motor, which is larger at the top and smaller at the bottom than a conical cone, the top surface of the positioning seat is provided with two positioning grooves which are opposite to each other and extend front and back, and the placement hole is located between the two positioning grooves, the positioning plate is arranged in a door shape, and the lower end of the positioning plate can be placed in the positioning groove, and the positioning plate is provided with a motor shaft hole for the motor shaft of the motor placed in the placement hole to extend out.

[0006] Further preferably, the positioning plate is further provided with a limiting groove for limiting the press-fitting position of the fan, and the limiting groove is configured to be larger at the top and smaller at the bottom and to be in the shape of a truncated cone.

[0007] Further preferably, the clamping assembly includes a clamping cylinder arranged between two clamping seats, the clamping seats are arranged on the vertical plate, a clamping block is arranged at the output end of the clamping cylinder, and an adjustment assembly for adjusting the stroke of the clamping cylinder is arranged on the vertical plate.

[0008] Further preferably, the adjustment assembly includes a pneumatic adjustment filter arranged on the right side of the vertical plate and a pneumatic switch arranged on the front side of the vertical plate.

[0009] The beneficial effects of the utility model are as follows: a positioning component and a clamping component are provided, the motor is placed by the positioning component, and the fan is pressed onto the motor shaft by the clamping component, thereby achieving interference installation between the fan and the motor, which is not only convenient for installation but also can effectively ensure the installation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the utility model.

[0011] Figure markings: base plate-1, vertical plate-2, positioning plate-3, motor shaft hole-3a, limiting groove-3b, positioning seat-4, positioning groove-4a, placement hole-4b, pressing seat-5, pressing cylinder-6, pressing block-7, pneumatic adjustment filter-8, pneumatic switch-9. DETAILED DESCRIPTION

[0012] The present invention will be further described below with reference to the following embodiments and accompanying drawings:

[0013] like Figure 1 The figure shows a press-fitting tool for a refrigerator fan, which mainly consists of a base plate 1, a vertical plate 2, a positioning assembly, and a clamping assembly. The vertical plate 2, which extends upward, is located at the right end of the base plate 1. The base plate 1 is provided with a positioning assembly for positioning the fan. The vertical plate 2 is provided with a clamping assembly corresponding to the positioning assembly, and the clamping assembly is used to press the fan onto the motor shaft.

[0014] The positioning assembly includes a positioning plate 3 and a positioning seat 4 mounted on the base plate 1. The positioning seat 4 has a truncated cone-shaped placement hole 4b for positioning the motor, which is larger at the top and smaller at the bottom. Two positioning slots 4a are positioned on the top surface of the positioning seat 4, extending from side to side and extending forward and backward. The placement hole 4b is located between the two positioning slots 4a. The positioning plate 3 is designed in a door-like shape, with its lower end positioned within the positioning slot 4a. The positioning plate 3 has a motor shaft hole 3a, through which the motor shaft of a motor placed in the placement hole 4b extends. This arrangement of placement holes allows the entire device to accommodate motors of various sizes.

[0015] To facilitate the removal of the positioning plate, the positioning plate is made up of two L-shaped plates, one of which has a protrusion on the opposite surface and the other has a groove, and the placement hole is made up of two plates spliced ​​together. Preferably, there are at least two groups of protrusions and grooves spaced apart.

[0016] Preferably, a limiting groove 3b is provided on the positioning plate 3 to limit the fan press-fitting position. The limiting groove 3b is set to be larger at the top and smaller at the bottom and is in the shape of a truncated cone. The positioning plate can ensure that the fan will not tilt when it is fitted with the motor shaft.

[0017] The clamping assembly includes a clamping cylinder 6 arranged between two clamping seats 5, and the clamping seat 5 is arranged on the vertical plate 2. A clamping block 7 is arranged at the output end of the clamping cylinder 6. Preferably, an adjustment assembly for adjusting the stroke of the clamping cylinder 6 is arranged on the vertical plate 2.

[0018] The regulating component includes a pneumatic regulating filter 8 arranged on the right side of the vertical plate 2 and a pneumatic switch 9 arranged on the front side of the vertical plate 2, and air pipes for connection are sequentially arranged between the pneumatic switch, the pneumatic regulating filter, and the compression cylinder. A flow regulating valve for monitoring the gas flow entering the compression cylinder is arranged on the air pipe between the pneumatic regulating filter and the compression cylinder. By setting the flow regulating valve, the stroke of the compression cylinder can be changed, and the water vapor in the air pipe can be filtered through the pneumatic regulating filter. At the same time, the air pressure can be adjusted according to the use requirements to ensure the stability of the output air pressure.

[0019] During operation, first place the motor in the placement hole, then place the positioning plate into the positioning groove, and at the same time make the motor shaft extend out of the motor shaft hole, then place the fan on the motor shaft, and then adjust the flow control valve according to the fan and motor shaft to be assembled, and start the pneumatic switch to achieve coordination between the fan and motor shaft.

Claims

1. A press-fitting tool for a refrigerator fan, characterized by: The invention comprises a base plate (1), a positioning assembly for positioning and placing a fan is provided on the base plate (1), a vertical plate (2) extending upward is provided at the right end of the base plate (1), a pressing assembly corresponding to the positioning assembly is provided on the vertical plate (2), and the pressing assembly can press the fan onto the motor shaft.

2. The press-fitting tool for the refrigerator fan according to claim 1, characterized in that: The positioning assembly comprises a positioning plate (3) and a positioning seat (4) arranged on a bottom plate (1); the positioning seat (4) is provided with a placement hole (4b) for placing a motor and having a larger upper portion and a smaller lower portion and a truncated cone shape; the top surface of the positioning seat (4) is provided with two positioning grooves (4a) opposite to each other and extending forward and backward, and the placement hole (4b) is located between the two positioning grooves (4a); the positioning plate (3) is arranged in a door shape, and the lower end of the positioning plate (3) can be placed in the positioning groove (4a); the positioning plate (3) is provided with a motor shaft hole (3a) for the motor shaft of the motor placed in the placement hole (4b) to extend out.

3. The press-fitting tool for the refrigerator fan according to claim 2, characterized in that: The positioning plate (3) is also provided with a limiting groove (3b) for limiting the press-fitting position of the fan, and the limiting groove (3b) is configured to be larger at the top and smaller at the bottom and to be in the shape of a truncated cone.

4. The press-fitting tool for a refrigerator fan according to claim 1, characterized in that: The clamping assembly comprises a clamping cylinder (6) arranged between two clamping seats (5), the clamping seat (5) being arranged on a vertical plate (2), a clamping block (7) being arranged at the output end of the clamping cylinder (6), and an adjusting assembly for adjusting the stroke of the clamping cylinder (6) being arranged on the vertical plate (2).

5. The press-fitting tool for a refrigerator fan according to claim 4, characterized in that: The regulating assembly comprises a pneumatic regulating filter (8) arranged on the right side of the vertical plate (2) and a pneumatic switch (9) arranged on the front side of the vertical plate (2).