Automobile speed reducer shell air tightness detection tool
By designing a testing fixture that includes a base plate, top plate, support plate, pressure rod, and cylinder, and utilizing the spring-connected point pressure block and ring plate, a complete seal is achieved on the reducer housing. This solves the leakage problem caused by poor sealing of existing testing fixtures and ensures the accuracy of airtightness testing.
Patent Information
- Application Number
- CN202423281036.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing automotive gearbox housing airtightness testing fixtures are ineffective when sealing gearbox housings with many openings, leading to serious leakage problems.
A testing fixture comprising a base plate, a top plate, a support plate, a pressure rod, a contour sealing block, and a cylinder was designed. The pressure block and the ring plate are connected by a spring, and the side contour sealing block driven by the cylinder is used to achieve complete sealing of the reducer housing.
This improved the sealing effect, ensured the accuracy of subsequent airtightness testing, and avoided leakage problems caused by poor sealing.
Smart Images
Figure CN223727333U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to detection technical field, especially a kind of automobile speed reducer shell air tightness detection tool. BACKGROUND
[0002] Speed reducer plays the role of matching rotational speed and transmitting torque between prime mover and working machine or actuator, and it is a kind of relatively precise machinery, and the purpose of using it is to reduce rotational speed and increase torque, which is widely used in modern machinery. Gear speed reducer requires airtightness, which can effectively prevent the leakage of lubricating oil in the box body and ensure the lubrication condition for long-term stable operation of the speed reducer.
[0003] At present, due to the large number of openings on the automobile speed reducer shell, the plugging effect of the air tightness detection tool is extremely limited, and leakage is likely to occur, so a new type of automobile speed reducer shell air tightness detection tool needs to be designed to solve the above problems. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a kind of automobile speed reducer shell air tightness detection tool to solve the problem that the plugging effect of the existing air tightness detection tool for the automobile speed reducer shell with more openings is extremely limited and leakage is likely to occur.
[0005] To solve the above technical problems, the utility model provides a kind of automobile speed reducer shell air tightness detection tool, which comprises a bottom plate, the top end of the bottom plate is fixed with a top plate through a plurality of stand columns and is provided with a support plate, the bottom end of the top plate is fixed with a plurality of first pressure rods, the support plate is fixedly connected with the bottom plate through a plurality of straight rods, and a clamping groove is opened at the top end of the support plate, a lower profiled plugging block is fixed in the clamping groove, and a speed reducer shell is arranged, the speed reducer shell is located on the outer surface of the lower profiled plugging block, and a ring plate and a point pressure block matched with the lower profiled plugging block are arranged above the speed reducer shell, a plurality of second pressure rods are fixed at the top end of the ring plate, a third pressure rod is fixed at the top end of the point pressure block, and the top ends of the second pressure rods and the third pressure rod are connected with the first pressure rod through springs.
[0006] A first air cylinder and a bearing plate horizontally arranged are further installed at the top end of the bottom plate, a side profiled plugging block matched with the bearing plate is fixed on the side of the bearing plate close to the speed reducer shell, and a moving block is fixed at the bottom end of the bearing plate, and the piston rod of the first air cylinder is connected with the moving block.
[0007] Optionally, a plurality of positioning blocks are arranged at the top end of the support plate, and the positioning blocks are arranged around the speed reducer shell and matched with the speed reducer shell.
[0008] Optionally, one side of the bearing plate is also fixed with a plurality of horizontally arranged second air cylinders, a T-shaped rod is fixed on each of the plurality of second air cylinders and uniformly surrounds the side profiled blocking block, a driving rod is connected to the piston rod of each second air cylinder, the other end of the driving rod is movably connected with a clamping rod through a first rotating shaft, the other end of the T-shaped rod is movably connected with a movable rod through a second rotating shaft, and the other end of the movable rod is movably connected with the side surface of the clamping rod through a third rotating shaft.
[0009] Optionally, the top end of the bottom plate is also provided with two sliding rails, and the bottom end of the bearing plate is fixed with two sliding blocks, which are located on the two sliding rails and are in sliding connection with the two sliding rails.
[0010] In the automobile speed reducer shell air tightness detection tool provided by the utility model, the top end of the bottom plate is fixed with a top plate through a plurality of stand columns and is provided with a supporting plate, a plurality of first pressing rods are fixed to the bottom end of the top plate, the supporting plate and the bottom plate are fixedly connected through a plurality of straight rods, and a clamping groove is formed in the top end of the straight rods, a lower profiled blocking block is fixed in the clamping groove and is provided with a speed reducer shell, the speed reducer shell is located on the outer surface of the lower profiled blocking block, a ring plate and a point pressing block matched with the lower profiled blocking block are arranged above the speed reducer shell, a plurality of second pressing rods are fixed to the top end of the ring plate, a third pressing rod is fixed to the top end of the point pressing block, and the top end of the plurality of second pressing rods and the third pressing rod is connected with the first pressing rod through springs; a gas filling hole is formed in the side surface of the supporting plate, a gas conveying hole is formed in the bottom surface of the clamping groove and located outside the speed reducer shell, the gas conveying hole extends into the gas filling hole, a first air cylinder and a bearing plate arranged horizontally are also arranged at the top end of the bottom plate, a side profiled blocking block matched with the speed reducer shell is fixed to the side of the bearing plate close to the speed reducer shell, a moving block is fixed to the bottom end of the bearing plate, and the piston rod of the first air cylinder is connected with the moving block; the detection tool is used, the blocking effect is good, and the subsequent air tightness detection is not affected due to the poor blocking effect. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structural schematic view of the automobile speed reducer shell air tightness detection tool provided by the utility model.
[0012] Figure 2 It is a partial structural schematic view of the automobile speed reducer shell air tightness detection tool provided by the utility model.
[0013] Figure 3 It is Figure 2 It is an enlarged view of A in FIG. DETAILED DESCRIPTION
[0014] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0015] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or intervening components can also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components can also be present. When a component is referred to as being "disposed" on another component, it can be directly on the other component or intervening components can also be present. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.
[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0017] The utility model provides a kind of automobile speed reducer shell air tightness detection tool, its structure as Figures 1 to 3As shown, including the base plate 1, the base plate 1 top end through several columns 2 fixed with the top plate 3 and is equipped with support plate 5, the top plate 3 bottom end is fixed with several first pressure bar 9, support plate 5 and base plate 1 through several straight bar 4 fixed connection and its top end open has clamping groove 29, clamping groove 29 fixed with the lower profiled sealing block 30 and is equipped with reducer housing 6, reducer housing 6 is located in the outer surface of the lower profiled sealing block 30 and its top is equipped with ring plate 10 and with the lower profiled sealing block 30 adapt point pressure block 7, ring plate 10 top end fixed with several second pressure bar 11, point pressure block 7 top end fixed with third pressure bar 8, several second pressure bar 11 and third pressure bar 8 top end are all connected with first pressure bar 9 through spring 12;Support plate 5 side open has inflation hole 28, clamping groove 29 bottom surface open has located in the outer side of reducer housing 6 gas inlet 31, gas inlet 31 extends to inflation hole 28 in;The base plate 1 top end is also installed with the first cylinder 13 and the bearing plate 14 which are horizontally arranged, the bearing plate 14 is fixed with the side profiled sealing block 15 which is adapted to it on the side close to the reducer housing 6 and its bottom end is fixed with the moving block 16, the piston rod of the first cylinder 13 is connected with the moving block 16, and the air tightness detection instrument is used to detect the air tightness of the completed sealing reducer housing 6, the point pressure block 7 is matched with the lower profiled sealing block 30 and the ring plate is pressed down the reducer housing 6 through the elastic effect of several springs 12, so as to seal the top opening and bottom opening of the reducer housing 6, and then the moving block 16 is moved by the first cylinder 13, so that the bearing plate 14 drives the side profiled sealing block 15 to seal the side of the reducer housing 6. The air tightness detection tool for automobile reducer housing is used, the sealing effect is good, and the subsequent air tightness detection is affected due to the poor sealing effect.
[0018] Further, the support plate 5 top end is equipped with several positioning blocks 25, several positioning blocks 25 are located around the reducer housing 6 and are all adapted to it, so that the reducer housing 6 can be accurately placed in the appropriate place.
[0019] Further, the bearing plate 14 side is also fixed with several horizontally arranged second cylinders 17, the T-shaped rods 18 are fixed on the several second cylinders 17 and uniformly surround the side profiled sealing block 15, the piston rod of the second cylinder 17 is connected with the driving rod 19, the other end of the driving rod 19 is movably connected with the clamping rod 21 through the first rotating shaft 20, the other end of the T-shaped rod 18 is movably connected with the movable rod 23 through the second rotating shaft 22, the other end of the movable rod 23 is movably connected with the side of the clamping rod 21 through the third rotating shaft 24, the clamping rod 21 one end rotates around the third rotating shaft 24 by driving the driving rod 19 to move through the piston rod of several second cylinders 17, at this time, the other end of several clamping rods 21 is pressed tightly to the reducer housing 6, so that it is tightly attached to the side profiled sealing block 15.
[0020] Further, the bottom plate 1 top end is also provided with two sections of slide rails 26, the bearing plate 14 bottom end is fixed with two slide blocks 27, the two slide blocks 27 are respectively located on the two sections of slide rails 26 and are all in sliding connection with the same, so that the bearing plate 14 moves more stably.
[0021] The working principle of the utility model is as follows: firstly, under the elastic action of the several springs 12, the point pressure block 7 cooperates with the lower profiled plugging block 30 and the ring plate presses down the speed reducer shell 6 to block the top opening and the bottom opening of the speed reducer shell 6, at this time, the first cylinder 13 is started, the piston rod drives the moving block 16 to move, so that the bearing plate 14 drives the side profiled plugging block 15 to block the side of the speed reducer shell 6, finally, the air tightness detection instrument is used to detect the air tightness of the blocked speed reducer shell 6.
[0022] The above description is only the description of the preferred embodiment of the utility model, and does not limit the scope of the utility model, and any change and modification of the ordinary skill in the art according to the above disclosure belongs to the protection scope of the claims.
Claims
1. An automobile speed reducer housing airtightness detection tool, comprising a bottom plate (1), characterized in that, The top end of the bottom plate (1) is fixed with a top plate (3) through several columns (2) and is provided with a support plate (5), the bottom end of the top plate (3) is fixed with several first pressing rods (9), the support plate (5) is fixedly connected with the bottom plate (1) through several straight rods (4), the top end of the support plate (5) is provided with a clamping groove (29), a lower profiling plugging block (30) is fixed in the clamping groove (29), and a speed reducer housing (6) is arranged on the outer surface of the lower profiling plugging block (30), an annular plate (10) and a point pressing block (7) matched with the lower profiling plugging block (30) are arranged above the speed reducer housing (6), the top end of the annular plate (10) is fixed with several second pressing rods (11), the top end of the point pressing block (7) is fixed with a third pressing rod (8), the top ends of the several second pressing rods (11) and the third pressing rod (8) are connected with the first pressing rod (9) through springs (12); the side surface of the support plate (5) is provided with an inflation hole (28), the bottom surface of the clamping groove (29) is provided with a gas inlet hole (31) located outside the speed reducer housing (6), and the gas inlet hole (31) extends into the inflation hole (28); The top end of the bottom plate (1) is also provided with a first cylinder (13) and a bearing plate (14) arranged horizontally, the side of the bearing plate (14) close to the speed reducer housing (6) is fixed with a side profiling plugging block (15) matched with the speed reducer housing (6), and the bottom end of the bearing plate (14) is fixed with a moving block (16), the piston rod of the first cylinder (13) is connected with the moving block (16).
2. The automotive deceleration machine shell airtightness detection tooling of claim 1, wherein, The top end of the support plate (5) is provided with several positioning blocks (25), and the several positioning blocks (25) are located around the speed reducer housing (6) and are matched with the speed reducer housing (6).
3. The automotive deceleration machine housing airtightness detection tooling of claim 1, wherein, The side of the bearing plate (14) is also fixed with several second cylinders (17) arranged horizontally, the T-shaped rods (18) are fixed on the several second cylinders (17) and uniformly surround the side profiling plugging block (15), the piston rods of the second cylinders (17) are connected with driving rods (19), the other ends of the driving rods (19) are movably connected with clamping rods (21) through first rotating shafts (20), the other ends of the T-shaped rods (18) are movably connected with movable rods (23) through second rotating shafts (22), and the other ends of the movable rods (23) are movably connected with the side surfaces of the clamping rods (21) through third rotating shafts (24).
4. The automotive deceleration machine housing airtightness detection tooling of claim 1, wherein, The top end of the bottom plate (1) is also provided with two slide rails (26), and the bottom end of the bearing plate (14) is fixed with two sliding blocks (27), the two sliding blocks (27) are located on the two slide rails (26) respectively and are movably connected with the two slide rails (26).