Frame integral press-fitting device for side speed reducer

By designing a press-fitting device for the support plate assembly, lead screw, and pressure plate, the problem of the existing equipment being unable to efficiently press-fit the side reducer frame was solved, achieving high-precision and high-efficiency frame installation, simplifying operation, and extending the service life of the device.

CN224169713UActive Publication Date: 2026-04-28HARBIN FIRST MACHINERY GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HARBIN FIRST MACHINERY GRP
Filing Date
2024-12-25
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing assembly workshop lacks press-fitting equipment suitable for installing the side reducer frame, resulting in insufficient press-fitting accuracy and efficiency, and easy wear of the frame and housing.

Method used

Design a pressing device that includes a support plate assembly, a lead screw, a pressure plate, and a handle. The lead screw drives the rotary motion to be converted into linear motion, thereby achieving smooth pressing of the frame.

Benefits of technology

It improves pressing accuracy and efficiency, reduces operational intensity, avoids unstable frame assembly, extends the service life of the device, and simplifies the installation and maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of vehicle assembly, and particularly discloses an integral frame press-fitting device for a side speed reducer. The press-fitting device comprises a supporting disc assembly, a lead screw, a pressing plate and a handle. Rotary motion can be converted into linear motion through lead screw transmission, two thirds of working strength of an operator can be saved, efficiency can be improved, unstable frame assembly is avoided, the device has the advantages of being simple, compact, convenient to install and maintain, long in service life and the like, and the operator can operate the device easily. The press fitting device can replace a press machine for press fitting.
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Description

Technical Field

[0001] This utility model belongs to the field of vehicle assembly technology, and specifically discloses a frame integral pressing device for a side reducer. Background Technology

[0002] Currently, many armored vehicle models use planetary transmission output for their side reduction gears, and frame installation is crucial for ensuring product quality. The frame and side reduction gear housing are fitted together with a tight fit to prevent gradual wear of the housing under prolonged directional forces. The side reduction gear housing is typically between 450mm and 470mm thick, and current assembly workshops lack press-fitting equipment suitable for the stroke and pressure requirements of this product.

[0003] Therefore, it is necessary to develop a frame integral pressing device for side reducers to improve pressing accuracy and efficiency. Utility Model Content

[0004] This utility model is achieved through the following technical solution:

[0005] A frame integral pressing device for a side reducer includes a support plate assembly 1, a lead screw 2, a pressure plate 3, and a handle 4.

[0006] The support plate assembly 1 has several connecting holes on its surface for connection with the side reducer housing via fasteners; the support plate assembly 1 has a through hole in its center, through which the lead screw 2 passes and connects to the pressure plate 3 located below the through hole; the nut of the lead screw 2 is fixedly inserted into a groove above the through hole of the support plate assembly 1 to guide the lead screw 2 through; the upper part of the pressure plate 3 is connected to the lead screw 2, and the lower part of the pressure plate 3 fits the shape of the top of the side reducer frame to avoid local stress on the frame; the handle 4 passes through the top of the lead screw 2 and is perpendicular to the lead screw 2.

[0007] Preferably, the connecting hole of the support plate assembly 1 is a threaded hole, which is connected to the side reducer housing by bolts.

[0008] Preferably, the support plate assembly 1 is provided with symmetrical slots for the protrusion of the side reducer housing to pass through, so that the support plate assembly 1 is fixed to the side reducer housing in a planar state.

[0009] Preferably, the central through hole of the support plate assembly 1 is I-shaped, with an upper groove for placing a nut and a lower convex groove for placing a convex pressure plate 3.

[0010] Furthermore, the area below the pressure plate 3 is not less than the area at the top of the side reducer frame.

[0011] Preferably, the handle 4 is connected to the lead screw 2 in a T-shape.

[0012] Preferably, the lead screw 2 is a sliding lead screw.

[0013] Preferably, the pressing device is made of metal.

[0014] The beneficial effects of this utility model are:

[0015] The device provided by this utility model has a unique structure for each part. The lead screw drive can convert rotary motion into linear motion, saving the operator 2 / 3 of the workload, improving efficiency, and preventing unstable frame assembly. Furthermore, the device is simple, compact, easy to install and maintain, and has a long service life, allowing for relatively easy operation. This press-fitting device can replace a press machine for press-fitting. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of the device structure of this utility model. Detailed Implementation

[0017] To better illustrate the purpose, technical solution, and advantages of this utility model, further explanation is provided below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to illustrate the technical effects of this utility model and are not intended to limit the scope of protection of this utility model.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1

[0020] A frame integral pressing device for a side reducer includes a support plate assembly 1, a lead screw 2, a pressure plate 3, and a handle 4.

[0021] The support plate assembly 1 has several connecting holes on its surface for connection with the side reducer housing via fasteners; the connecting holes of the support plate assembly 1 are threaded holes, which are connected to the side reducer housing via bolts. The support plate assembly 1 has symmetrical slots for the protrusions of the side reducer housing to pass through, so that the support plate assembly 1 is fixed to the side reducer housing in a planar state.

[0022] The support plate assembly 1 has a through hole in the center, and the lead screw 2 passes through the through hole and is connected to the pressure plate 3 located below the through hole; the nut of the lead screw 2 is fixed in the groove provided above the through hole of the support plate assembly 1 to guide the lead screw 2 through; the through hole in the center of the support plate assembly 1 is I-shaped, with the upper groove for placing the nut and the lower convex groove for placing the convex pressure plate 3.

[0023] The pressure plate 3 is connected to the lead screw 2 at the top, and the lower part of the pressure plate 3 fits the shape of the top of the side reducer frame. The area below the pressure plate 3 is not less than the area of ​​the top of the side reducer frame to avoid local stress on the frame. The handle 4 passes through the top of the lead screw 2 and is perpendicular to the lead screw 2. The handle 4 and the lead screw 2 are connected in a T-shape. The lead screw 2 is a sliding lead screw.

[0024] The pressing device is made of metal.

[0025] In use, it is connected to the side reducer housing via bolts. Rotating the lead screw 2 downwards pushes against the frame assembly, ensuring the top of the pressure plate is fully engaged, preventing localized stress on the frame and smoothly pressing it into the housing. The lead screw 2 drive converts rotary motion into linear motion, saving the operator two-thirds of their workload, improving efficiency, preventing unstable frame assembly, and enhancing overall product quality and lifespan.

[0026] The above description is merely a specific example of this utility model and does not constitute any limitation on this utility model. Those skilled in the art, after understanding the content and principles of this utility model, may make various modifications and changes in form and detail without departing from the principles and structure of this utility model; however, these modifications and changes based on the concept of this utility model are still within the protection scope of the claims of this utility model.

Claims

1. A frame integral pressing device for a side reducer, characterized in that, Includes a support plate assembly (1), a lead screw (2), a pressure plate (3), and a handle (4); The support plate assembly (1) has several connecting holes on its surface for connection with the side reducer housing via fasteners; the support plate assembly (1) has a through hole in its center, through which the lead screw (2) passes and connects to the pressure plate (3) located below the through hole; the nut of the lead screw (2) is fixedly inserted into a groove above the through hole of the support plate assembly (1) to guide the lead screw (2) through; the pressure plate (3) is connected to the lead screw (2) at the top, and the lower part of the pressure plate (3) fits the shape of the top of the side reducer frame; the handle (4) passes through the top of the lead screw (2) and is perpendicular to the lead screw (2).

2. The frame integral pressing device for a side reducer according to claim 1, characterized in that, The connection hole of the support plate assembly (1) is a threaded hole, which is connected to the side reducer housing by bolts.

3. The integral frame pressing device for a side reducer according to claim 1, characterized in that, The support plate assembly (1) is provided with symmetrical slots for the protrusion of the side reducer housing to pass through, so that the support plate assembly (1) is fixed to the side reducer housing in a planar state.

4. The integral frame pressing device for a side reducer according to claim 1, characterized in that, The central through hole of the support plate assembly (1) is I-shaped, with an upper groove for placing a nut and a lower convex groove for placing a convex pressure plate (3).

5. The integral frame pressing device for a side reducer according to claim 4, characterized in that, The area below the pressure plate (3) is not less than the area at the top of the side reducer frame.

6. The integral frame pressing device for a side reducer according to claim 1, characterized in that, The handle (4) is connected to the lead screw (2) in a T-shape.

7. The integral frame pressing device for a side reducer according to claim 1, characterized in that, The lead screw (2) is a sliding lead screw.

8. The integral frame pressing device for a side reducer according to claim 1, characterized in that, The pressing device is made of metal.