New energy gearbox air tightness detection mechanism
By designing an automated transmission air tightness testing mechanism, which utilizes an electric telescopic arm and hydraulic cylinders to achieve automated positioning and sealing of the transmission, the problem of low automation in the testing of transmissions for new energy vehicles is solved, reducing labor costs and human error.
Patent Information
- Application Number
- CN202520016848.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-06
AI Technical Summary
The air tightness testing of new energy vehicle transmissions has a low degree of automation, and the testing process is labor-intensive and prone to human error.
An airtightness testing mechanism including a testing base and a support platform was designed. It uses an electric telescopic arm and a hydraulic cylinder to achieve automated positioning and sealing of the gearbox, and then performs testing using an airtightness tester.
The automated testing process for transmissions has been implemented, reducing labor costs and human error.
Smart Images

Figure CN223650090U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of airtightness testing equipment technology, specifically to an airtightness testing mechanism for new energy transmissions. Background Technology
[0002] The transmission, by combining different gears to change the gear ratio, controls the vehicle's speed and direction, enabling the car to adapt to various driving conditions. It is a crucial component of new energy vehicles. Currently, the airtightness testing of new energy vehicle transmissions has a low level of automation. Furthermore, the transmissions are relatively heavy, making them inconvenient to move during testing, resulting in high labor costs and a greater chance of human error during the testing process.
[0003] Based on this, this utility model proposes a new energy transmission air tightness testing mechanism. Utility Model Content
[0004] To address the shortcomings of the existing technology, this utility model provides a new energy transmission airtightness testing mechanism to solve the aforementioned technical problems.
[0005] A new energy transmission air tightness testing mechanism includes a testing base and a support platform. The testing base includes a side support, a testing platform, and an outer peripheral platform. A bottom electric telescopic arm is installed on the testing platform. A left electric telescopic arm, a right electric telescopic arm, a rear electric telescopic arm, a top electric telescopic arm, and a first translational electric telescopic arm are installed on the outer peripheral platform via an extension platform. An air tightness tester is slidably connected to the outer peripheral platform. A front movable plate is fixedly connected to the first translational electric telescopic arm. A front electric telescopic arm is installed on the front movable plate. The bottom electric telescopic arm, left electric telescopic arm, right electric telescopic arm, rear electric telescopic arm, front electric telescopic arm, and top electric telescopic arm are each connected to a sealing block via a distribution frame.
[0006] A vertical hydraulic cylinder is fixedly connected to the bottom of the bearing platform, and a support plate is slidably connected to the bearing platform. The support plate is provided with a support groove that matches the bottom of the gearbox. When the vertical hydraulic cylinder extends, the bearing platform aligns with the side support, and the support plate slides onto the side support.
[0007] Furthermore, the bearing platform is equipped with a horizontal hydraulic cylinder, which is fixedly connected to the support plate. When the horizontal hydraulic cylinder extends, the support plate slides onto the side support.
[0008] Furthermore, the outer peripheral platform is equipped with a second translation electric telescopic arm, which is fixedly connected to the air tightness tester. When the second translation electric telescopic arm extends, the air tightness tester's inflation nozzle comes into close contact with the gearbox's detection port.
[0009] Furthermore, the bottom of the support plate is provided with a long slider, and the bearing platform and the side support are provided with slide rails that cooperate with the long slider.
[0010] Due to the adoption of the above technical solution, the beneficial effects of this utility model compared with the prior art include:
[0011] By extending the vertical and horizontal hydraulic cylinders, the gearbox is moved to the position to be tested. Then, the extension of each electric telescopic arm seals the remaining open holes. Finally, the gearbox is inflated and pressure is maintained for testing. This automated operation process reduces labor costs and human error. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 A schematic diagram of the structure supporting the sliding of the disk towards the edge support;
[0014] Figure 3 This is a schematic diagram of the structure of the testing base;
[0015] The attached diagram shows the following reference numerals: 1-Bearing platform, 2-Side support, 3-Detection base, 4-Outer perimeter platform, 5-Bottom electric telescopic arm, 6-Left electric telescopic arm, 7-Right electric telescopic arm, 8-Rear electric telescopic arm, 9-Top electric telescopic arm, 10-First translation electric telescopic arm, 11-Air tightness gauge, 12-Front movable plate, 13-Front electric telescopic arm, 14-Dispersion frame, 15-Sealing block, 16-Vertical hydraulic cylinder, 17-Support plate, 18-Horizontal hydraulic cylinder, 19-Second translation electric telescopic arm, 20-Inflation nozzle. Detailed Implementation
[0016] 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, other implementation methods or equivalent substitutions obtained by those skilled in the art without creative effort are all within the protection scope of the present utility model.
[0017] like Figure 1-3As shown, a new energy transmission air tightness testing mechanism includes a testing base and a support platform 1. The testing base includes a side support 2, a testing platform 3, and an outer peripheral platform 4. The testing platform 3 is equipped with a bottom electric telescopic arm 5. The outer peripheral platform 4 is equipped with a left electric telescopic arm 6, a right electric telescopic arm 7, a rear electric telescopic arm 8, a top electric telescopic arm 9, and a first translation electric telescopic arm 10 via an extension platform. An air tightness meter 11 is slidably connected to the outer peripheral platform 4. A front movable plate 12 is fixedly connected to the first translation electric telescopic arm 10. A front electric telescopic arm 13 is installed on the front movable plate 12. The bottom electric telescopic arm 5, the left electric telescopic arm 6, the right electric telescopic arm 7, the rear electric telescopic arm 8, the front electric telescopic arm 13, and the top electric telescopic arm 9 are respectively connected to sealing blocks 15 via a dispersion frame 14.
[0018] A vertical hydraulic cylinder 16 is fixedly connected to the bottom of the bearing platform 1. The vertical hydraulic cylinder 16 can be set as two symmetrical cylinders that extend or retract synchronously. The bearing platform 1 is slidably connected to a support plate 17. The support plate 17 is provided with a support groove that matches the bottom of the gearbox, so that gearboxes of the same model are in a uniform testing state. When the vertical hydraulic cylinder 16 is in the retracted state, the bearing platform 1 is at a low position and there are no obstructions on all sides, which makes it easy to place the gearbox to be tested on the support groove of the support plate 17. When the vertical hydraulic cylinder 16 extends, the bearing platform 1 moves upward until it is aligned with the side support 2. After the support plate 17 slides onto the side support 2;
[0019] When the first translation electric telescopic arm 10 is in the retracted state, the support plate 17 can slide smoothly towards the side support 2. When the first translation electric telescopic arm 10 extends, the front movable plate 12 drives the front electric telescopic arm 13 to move. The gearbox under test is in the space surrounded by each distribution frame 14. The front electric telescopic arm 13, bottom electric telescopic arm 5, left electric telescopic arm 6, right electric telescopic arm 7, rear electric telescopic arm 8 and top electric telescopic arm 9 extend respectively. The elastic sealing block is tightly abutted against the gearbox, sealing the remaining open holes in each direction of the gearbox. The extension length of each electric telescopic arm and the number and length of each support of the distribution frame 14 are matched with the corresponding open holes. The sealing block connected to the bottom electric telescopic arm 5 can penetrate the support plate 17 to seal the open holes at the bottom of the gearbox. The air inlet 20 of the air tightness meter 11 inflates and pressurizes the gearbox. The air tightness meter 11 gives parameters to show whether the gearbox is leaking air.
[0020] The support platform 1 is equipped with a horizontal hydraulic cylinder 18, which is fixedly connected to the support plate 17. When the horizontal hydraulic cylinder 18 extends, the support plate 17 slides onto the side support 2. A proximity switch can be installed at the side of the support platform 1. When the support platform 1 is aligned with the side support 2, the horizontal hydraulic cylinder 18 begins to extend, causing the support plate 17 to slide onto the side support 2. By setting the extension length of the horizontal hydraulic cylinder 18, the gearbox on the support plate 17 reaches the position to be tested. A proximity switch can also be installed on the outer peripheral platform 4. After the support plate 17 moves into place, each electric telescopic arm extends in sequence.
[0021] The outer platform 4 is equipped with a second translation electric telescopic arm 19, which is fixedly connected to the air tightness meter 11. When the second translation electric telescopic arm 19 extends, the air inlet 20 of the air tightness meter 11 comes into close contact with the gearbox. The outer periphery of the air inlet 20 is provided with a sealing ring. After the elastic sealing block seals the remaining open holes in all directions of the gearbox, the second translation electric telescopic arm 19 extends, and the air tightness meter 11 moves towards the gearbox until the air inlet 20 of the air tightness meter 11 comes into close contact with the gearbox, and inflation and pressure maintenance are performed. The air tightness meter 11 provides parameters to show whether the gearbox is leaking air.
[0022] The support plate 17 has a long slider at its bottom, and the bearing platform 1 and the side support 2 are equipped with slide rails that cooperate with the long slider.
[0023] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A new energy transmission air tightness testing mechanism, characterized in that: The test base includes a test base and a support platform (1). The test base includes a side support (2), a test base (3), and an outer peripheral platform (4). The test base (3) is equipped with a bottom electric telescopic arm (5). The outer peripheral platform (4) is equipped with a left electric telescopic arm (6), a right electric telescopic arm (7), a rear electric telescopic arm (8), a top electric telescopic arm (9), and a first translation electric telescopic arm (10) via an extension platform. The outer peripheral platform (4) is slidably connected to an airtightness meter (11). The first translation electric telescopic arm (10) is fixedly connected to a front movable plate (12). The front movable plate (12) is equipped with a front electric telescopic arm (13). The bottom electric telescopic arm (5), left electric telescopic arm (6), right electric telescopic arm (7), rear electric telescopic arm (8), front electric telescopic arm (13), and top electric telescopic arm (9) are respectively connected to a sealing block (15) via a distribution frame (14). The bottom end of the bearing platform (1) is fixedly connected to a vertical hydraulic cylinder (16), and the bearing platform (1) is slidably connected to a support plate (17). The support plate (17) is provided with a support groove that matches the bottom of the gearbox. When the vertical hydraulic cylinder (16) extends, the bearing platform (1) aligns with the side support (2), and the support plate (17) slides onto the side support (2).
2. The airtightness testing mechanism for new energy transmissions as described in claim 1, characterized in that: The bearing platform (1) is equipped with a horizontal hydraulic cylinder (18), which is fixedly connected to the support plate (17). When the horizontal hydraulic cylinder (18) extends, the support plate (17) slides onto the side support (2).
3. The airtightness testing mechanism for new energy transmissions as described in claim 1, characterized in that: The outer peripheral platform (4) is equipped with a second translation electric telescopic arm (19), which is fixedly connected to the air tightness instrument (11). When the second translation electric telescopic arm (19) extends, the air inlet (20) of the air tightness instrument (11) is tightly abutted against the gearbox.
4. The airtightness testing mechanism for new energy transmissions as described in claim 1, characterized in that: The bottom of the support plate (17) is provided with a long slider, and the bearing platform (1) and the side support (2) are provided with slide rails that cooperate with the long slider.