Oil passage sealing mechanism on the inner wall of electric drive housing
By combining a base plate, a telescopic device, and a linear movement device, the problem of limited operating space for sealing the oil passage openings on the inner wall of the electric drive housing is solved, enabling precise sealing of the oil passage openings on the inner wall of the electric drive housing and improving the convenience and accuracy of sealing performance testing.
Patent Information
- Application Number
- CN202522766599.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-26
AI Technical Summary
The small operating space for sealing the oil passage openings on the inner wall of the electric drive housing makes it difficult to test the sealing performance.
The sealing mechanism employs a base plate, a telescopic device, and a linear movement device. By converting the telescopic motion into linear movement through a reversing mechanism, the sealing plug is precisely sealed.
Effective sealing of the oil passage openings on the inner wall of the electric drive housing was achieved within a limited space, improving the convenience and accuracy of sealing performance testing.
Smart Images
Figure CN224945586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical engineering, specifically to an automotive parts testing device. Background Technology
[0002] With the popularization of new energy electric vehicles and the expansion of the demand for lightweight automobiles, the structural design of automotive parts is becoming increasingly complex. In particular, the oil passage design of the electric drive housing of electric vehicles is more prone to quality defects such as poor sealing. Testing the sealing performance of the oil passage during the quality inspection stage is the main means of quality control in the workshop.
[0003] The oil passage structure of the electric drive housing is complex, with openings communicating with the oil passages on the inner wall of the housing (e.g., ...). Figure 1 As shown in the figure, this opening needs to be closed when performing a sealing performance test. However, due to the relatively small external dimensions and complex internal structure of the electric drive housing, the space for sealing this opening is very small. Utility Model Content
[0004] In order to seal the oil passage openings on the inner wall of the electric drive housing within a limited space, this utility model provides an oil passage sealing mechanism for the inner wall of the electric drive housing. The key features are: a base plate on which a telescopic device and a linear moving device are provided, wherein the telescopic direction of the telescopic device is perpendicular to the moving direction of the linear moving device. A reversing mechanism is connected between the telescopic part of the telescopic device and the moving part of the linear moving device, which converts the telescopic movement of the telescopic device into the linear moving movement of the linear moving device. The moving part of the linear motion device is equipped with a sealing plug. Attached Figure Description
[0005] Figure 1 This is a schematic diagram of the electric drive housing. Figure 2 This is a schematic diagram of the oil passage opening sealing device from a first-view perspective. Figure 3 This is a schematic diagram of the oil passage opening sealing device from a second perspective. Detailed Implementation
[0006] The present invention will be further described below with reference to the embodiments and accompanying drawings.
[0007] like Figure 1 , 2 As shown in Figure 3, an oil passage sealing mechanism for the inner wall of an electric drive housing includes a base plate 1, on which a telescopic device 2 and a linear moving device 3 are provided. The telescopic direction of the telescopic device 2 is perpendicular to the moving direction of the linear moving device 3. A reversing mechanism is connected between the telescopic part of the telescopic device 2 and the moving part of the linear moving device 3. The reversing mechanism converts the telescopic movement of the telescopic device 2 into the linear movement of the linear moving device 3. The moving part of the linear motion device 3 is provided with a sealing plug 4.
[0008] The reversing mechanism includes a wedge block 51, which is fixed to the telescopic part of the telescopic device 2. The wedge block 51 is provided with a reversing inclined surface, which faces and contacts the moving part of the linear moving device 3. When the wedge block 51 extends with the telescopic part of the telescopic device 2, the moving part of the linear moving device 3 moves linearly under the action of the reversing inclined surface.
[0009] The reversing mechanism also includes a first roller 52, which is rotatably mounted on the moving part of the linear moving device 3. The outer rotating surface of the first roller 52 is in contact with the reversing inclined surface. When the inclined block 51 extends with the telescopic part of the telescopic device 2, the first roller 52 rolls relative to the reversing inclined surface.
[0010] The telescopic device 2 includes a telescopic cylinder, the cylinder barrel of which is fixed on the base plate 1, and the free end of the piston rod of the telescopic cylinder is fixed with the inclined block 51, which extends and retracts with the piston rod of the telescopic cylinder.
[0011] The base plate 1 is also provided with a telescopic guide portion, which constrains the inclined block 51 to perform linear telescopic movement. The telescopic guide portion includes a guide bracket 61, which is fixed to the base plate 1. A second roller 62 is rotatably mounted on the guide bracket 61. The inclined block 51 is located between the first roller 52 and the second roller 62, and the inclined block 51 is in contact with the outer rotating surface of the second roller 62.
[0012] The linear motion device 3 includes a sliding bracket 31 and a sliding seat 32. The sliding bracket 31 is fixed on the base plate 1, and the sliding seat 32 is slidably assembled on the sliding bracket 31. The first roller 52 and the sealing plug 4 are installed on the sliding seat 32.
[0013] The sliding seat 32 includes a slider, a wheel frame, and a sliding rod. The wheel frame, the sliding rod, and the sealing plug 4 are respectively fixed on the slider. The wheel frame and the sliding rod are located on the same side of the slider. The first roller 52 is mounted on the wheel frame. The sliding bracket 31 is provided with two sliding holes. There are two sliding rods, which are parallel to each other. The two sliding rods correspond one-to-one with the two sliding holes, and the sliding rods slide through the corresponding sliding holes.
[0014] A sliding reset mechanism is provided between the sliding seat 32 and the sliding bracket 31. The first roller 52 and the slider are located on both sides of the sliding bracket 31. One end of the sliding rod is fixedly connected to the slider, and the other end of the sliding rod is provided with an anti-detachment head. The anti-detachment head and the slider are located on both sides of the sliding bracket 31. A reset spring is fitted on the sliding rod between the anti-detachment head and the sliding bracket 31, and the reset spring forms the sliding reset mechanism.
[0015] Beneficial effects: The technical solution of this utility model uses the cooperation of telescopic device and linear movement device to push out the sealing plug, which is used to seal the oil passage opening on the inner cavity side wall of the electric drive housing. It is easy to arrange and install in a small space, and the sealing effect is good.
[0016] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.
Claims
1. A sealing mechanism for oil passage openings on the inner wall of an electric drive housing, characterized in that: Includes a base plate (1), on which a telescopic device (2) and a linear moving device (3) are provided, wherein the telescopic direction of the telescopic device (2) is perpendicular to the moving direction of the linear moving device (3); A reversing mechanism is connected between the telescopic part of the telescopic device (2) and the moving part of the linear moving device (3), which converts the telescopic action of the telescopic device (2) into the linear moving action of the linear moving device (3). The linear motion device (3) is provided with a sealing plug (4) on its moving part.
2. The oil passage sealing mechanism on the inner wall of the electric drive housing according to claim 1, characterized in that: The reversing mechanism includes a wedge block (51), which is fixed to the telescopic part of the telescopic device (2). The wedge block (51) is provided with a reversing slope, which faces and contacts the moving part of the linear moving device (3). When the wedge block (51) extends with the telescopic part of the telescopic device (2), the moving part of the linear moving device (3) moves linearly under the action of the reversing slope.
3. The oil passage sealing mechanism on the inner wall of the electric drive housing according to claim 2, characterized in that: The reversing mechanism also includes a first roller (52), which is rotatably mounted on the moving part of the linear moving device (3). The outer rotating surface of the first roller (52) contacts the reversing inclined surface. When the inclined block (51) extends with the telescopic part of the telescopic device (2), the first roller (52) rolls relative to the reversing inclined surface.
4. The oil passage sealing mechanism on the inner wall of the electric drive housing according to claim 2 or 3, characterized in that: The telescopic device (2) includes a telescopic cylinder, the cylinder barrel of which is fixed on the base plate (1), and the free end of the piston rod of the telescopic cylinder is fixed with the inclined block (51), which extends and retracts with the piston rod of the telescopic cylinder.
5. The oil passage sealing mechanism on the inner wall of the electric drive housing according to claim 3, characterized in that: The substrate (1) is also provided with a telescopic guide portion, which constrains the inclined block (51) to perform linear telescopic movement.
6. The oil passage sealing mechanism on the inner wall of the electric drive housing according to claim 5, characterized in that: The telescopic guide includes a guide bracket (61) which is fixed on the base plate (1). A second roller (62) is rotatably mounted on the guide bracket (61). The inclined block (51) is located between the first roller (52) and the second roller (62). The inclined block (51) is in contact with the outer rotating surface of the second roller (62).
7. The oil passage sealing mechanism on the inner wall of the electric drive housing according to claim 3, 5 or 6, characterized in that: The linear motion device (3) includes a sliding bracket (31) and a sliding seat (32). The sliding bracket (31) is fixed on the base plate (1), and the sliding seat (32) is slidably mounted on the sliding bracket (31). The first roller (52) and the sealing plug (4) are mounted on the sliding seat (32).
8. The oil passage sealing mechanism on the inner wall of the electric drive housing according to claim 7, characterized in that: The sliding seat (32) includes a slider, a wheel frame and a sliding rod. The wheel frame, the sliding rod and the sealing plug (4) are respectively fixed on the slider. The wheel frame and the sliding rod are located on the same side of the slider. The first roller (52) is installed on the wheel frame. The sliding bracket (31) is provided with two sliding holes. There are two sliding rods. The two sliding rods are parallel to each other. The two sliding rods correspond one-to-one with the two sliding holes. The sliding rods slide through the corresponding sliding holes.
9. The oil passage sealing mechanism on the inner wall of the electric drive housing according to claim 8, characterized in that: A sliding reset mechanism is provided between the sliding seat (32) and the sliding bracket (31).
10. The oil passage sealing mechanism on the inner wall of the electric drive housing according to claim 9, characterized in that: The first roller (52) and the slider are located on both sides of the sliding bracket (31). One end of the sliding rod is fixedly connected to the slider. The other end of the sliding rod is provided with an anti-detachment head. The anti-detachment head and the slider are located on both sides of the sliding bracket (31). A return spring is fitted on the sliding rod between the anti-detachment head and the sliding bracket (31). The return spring forms the sliding return mechanism.