CN223485425U - A reducer housing air tightness detection device - Google Patents
A reducer housing air tightness detection deviceInfo
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- CN223485425U CN223485425U CN202423149974.4U CN202423149974U CN223485425U CN 223485425 U CN223485425 U CN 223485425U CN 202423149974 U CN202423149974 U CN 202423149974U CN 223485425 U CN223485425 U CN 223485425U
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- transparent cylinder
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Abstract
本实用新型涉及气密性检测技术领域，具体为一种减速器壳体气密性检测装置。包括基座、上端密封机构、充气管、手动打气机构以及检测机构；基座上设置有第二密封垫；上端密封机构包括压板、安装在压板底端的第一密封垫以及用于驱动压板竖直移动的驱动组件；手动打气机构用于向充气管内侧输送气体，充气管的输出端位于第二密封垫的上方，充气管上安装有第一单向阀；检测机构包括透明筒体、第二活塞板以及第二弹性复位组件。本技术方案具有结构精简、测试结果精准、制造成本以及使用成本低廉的优点。
The present utility model relates to the technical field of air tightness detection, specifically a reducer housing air tightness detection device. It includes a base, an upper end sealing mechanism, an air filling tube, a manual air pumping mechanism and a detection mechanism; a second sealing gasket is provided on the base; the upper end sealing mechanism includes a pressure plate, a first sealing gasket installed at the bottom end of the pressure plate and a driving assembly for driving the pressure plate to move vertically; the manual air pumping mechanism is used to deliver gas to the inside of the air filling tube, the output end of the air filling tube is located above the second sealing gasket, and a first one-way valve is installed on the air filling tube; the detection mechanism includes a transparent cylinder, a second piston plate and a second elastic reset assembly. This technical solution has the advantages of a simple structure, accurate test results, low manufacturing cost and low use cost.
Description
Technical Field
The utility model relates to the technical field of air tightness detection, in particular to a speed reducer shell air tightness detection device.
Background
The automobile speed reducer shell needs to be subjected to air tightness detection before loading so as to avoid oil leakage and other phenomena after loading.
The existing air tightness detection device generally comprises a shaft end sealing piece and a differential mechanism end sealing piece, a cavity of a sealing structure is formed inside a speed reducer shell under the sealing action of the two sealing pieces, then pressure is injected into the cavity through an air pump, a pressure gauge or an air pressure sensor is arranged to monitor the pressure, after the pressurization work is finished, the sealing performance of the shell is determined according to whether the pressure changes or not, but the air pump, the pressure gauge and control equipment are used in the test mode, so that the structure is complex, and the test cost is high.
Disclosure of utility model
The utility model aims to solve the problems in the background art and provides a device for detecting the air tightness of a speed reducer shell.
According to the technical scheme, the air tightness detection device for the speed reducer shell comprises:
The base is provided with a second sealing gasket;
the upper end sealing mechanism comprises a pressing plate, a first sealing gasket arranged at the bottom end of the pressing plate and a driving assembly used for driving the pressing plate to vertically move;
The device comprises an air charging pipe and a manual air charging mechanism for conveying air to the inner side of the air charging pipe, wherein the output end of the air charging pipe is positioned above a second sealing pad, and a first one-way valve is arranged on the air charging pipe;
The detection mechanism comprises a transparent cylinder body, a second piston plate and a second elastic reset assembly, the transparent cylinder body is arranged on the pressing plate, the transparent cylinder body penetrates through the first sealing gasket, the bottom end of the transparent cylinder body is provided with an opening, the upper end and the lower end of the inner side of the transparent cylinder body are respectively provided with an upper limiting ring and a lower limiting ring, the second piston plate is movably arranged on the inner side of the transparent cylinder body, a second sealing ring is arranged on the periphery of the second piston plate, and the second piston plate is elastically connected with the transparent cylinder body through the second elastic reset assembly.
Preferably, clamping mechanisms are arranged around the base, first sliding grooves are formed in the periphery of the base, the clamping mechanisms comprise a propping block, a second threaded rod and a second rotating handle, the bottom end of the propping block is slidably arranged in the first sliding groove on the corresponding side, the second threaded rod is rotatably arranged in the first sliding groove on the corresponding side, the propping block is in threaded connection with the second threaded rod, and the second rotating handle is arranged at the outer end of the second threaded rod.
Preferably, the manual inflating mechanism comprises an inflating cylinder body, a first piston plate, an air inlet pipe, a second one-way valve, a first piston rod, a pushing plate and a first elastic reset assembly, wherein the inflating cylinder body is arranged on a base, the inflating pipe and the air inlet pipe are communicated with the inside of the inflating cylinder body, the second one-way valve is arranged on the air inlet pipe, the first piston plate is movably arranged on the inner side of the inflating cylinder body, a first sealing ring is arranged on the periphery of the first piston plate, the first piston plate is elastically connected with the inflating cylinder body through the first elastic reset assembly, and the first piston rod movably penetrates through the inner side and the outer side of the inflating cylinder body and two ends of the first piston rod are respectively connected with the first piston plate and the pushing plate.
Preferably, the first elastic restoring component comprises a first guide rod and a first spring, the first guide rod is arranged on the inner side of the inflatable cylinder, the first piston plate is arranged on the first guide rod in a sliding mode, and the first spring is sleeved on the lower portion of the first guide rod.
Preferably, the outer wall of the transparent cylinder is provided with scale bars, and the transparent cylinder is a transparent toughened glass cylinder.
Preferably, the driving assembly comprises a sliding groove plate, a connecting sliding block, a first threaded rod and a first rotating handle, wherein the sliding groove plate is arranged on the base, a second sliding groove is vertically formed in the sliding groove plate, the first threaded rod is rotatably arranged on the inner side of the second sliding groove, the upper end of the first threaded rod extends out to the upper side of the sliding groove plate and is connected with the first rotating handle, the end part of the connecting sliding block is slidably arranged on the inner side of the second sliding groove and is in threaded connection with the first threaded rod, and the other end of the connecting sliding block is connected with the pressing plate.
Preferably, the second elastic reset component comprises a second guide rod and a second spring, the second guide rod movably penetrates through the upper end of the transparent cylinder and is connected with the second piston plate, and the second spring is sleeved on the second guide rod.
Compared with the prior art, the utility model has the beneficial technical effects that the sealing performance of the speed reducer shell is judged by adopting the modes of manual sealing, manual pumping and naked eye judgment, the structure is simple, the test result is accurate, the manufacturing cost and the use cost are low, and the practicability is strong.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a sectional view of the transparent cylinder according to the present utility model.
FIG. 3 is a cross-sectional view of the inflatable cartridge of the present utility model.
The device comprises the following components of 1, a base, 101, a first sliding chute, 2, an inflatable cylinder, 3, a transparent cylinder, 4, a pressing plate, 5, a first sealing gasket, 6, a sliding chute plate, 601, a second sliding chute, 7, a connecting sliding block, 8, a second sealing gasket, 9, a tight block, 10, a scale bar, 11, a first threaded rod, 12, a first rotating handle, 13, a second threaded rod, 14, a second rotating handle, 15, a first piston plate, 161, an inflatable tube, 162, an air inlet tube, 172, a second one-way valve, 18, a first piston rod, 19, a pushing plate, 20, a first guide rod, 21, a first spring, 22, a second piston plate, 23, a first sealing ring, 24, a second sealing ring, 25, a lower limiting ring, 26, an upper limiting ring, 27, a second guide rod, 28 and a second spring.
Detailed Description
Example 1
As shown in fig. 1-3, the device for detecting the air tightness of the housing of the speed reducer according to the present embodiment includes a base 1, an upper end sealing mechanism, an inflation tube 161, a manual inflation mechanism, and a detection mechanism.
The base 1 is provided with a second sealing gasket 8, the upper end sealing mechanism comprises a pressing plate 4, a first sealing gasket 5 arranged at the bottom end of the pressing plate 4 and a driving assembly used for driving the pressing plate 4 to move vertically, the driving assembly comprises a sliding groove plate 6, a connecting sliding block 7, a first threaded rod 11 and a first rotating handle 12, the sliding groove plate 6 is arranged on the base 1, the sliding groove plate 6 is vertically provided with a second sliding groove 601, the first threaded rod 11 is installed on the inner side of the second sliding groove 601 in a rotating mode, the upper end of the first threaded rod 11 extends out of the upper side of the sliding groove plate 6 and is connected with the first rotating handle 12, the end portion of the connecting sliding block 7 is installed on the inner side of the second sliding groove 601 in a sliding mode and is in threaded connection with the first threaded rod 11, the other end of the connecting sliding block 7 is connected with the pressing plate 4, and the connecting sliding block 7 can be driven to move up and down by adjusting the rotating direction of the first threaded rod 11.
The manual pumping mechanism is used for conveying gas to the inner side of the gas charging tube 161, the manual pumping mechanism comprises a gas charging tube 2, a first piston plate 15, a gas inlet tube 162, a second one-way valve 172, a first piston rod 18, a push plate 19 and a first elastic reset assembly, the gas charging tube 2 is arranged on the base 1, the gas charging tube 161 and the gas inlet tube 162 are both communicated with the inside of the gas charging tube 2, the second one-way valve is arranged on the gas inlet tube 162, the first piston plate 15 is movably arranged on the inner side of the gas charging tube 2, a first sealing ring 23 is arranged on the peripheral side of the first piston plate 15, the first piston plate 15 is elastically connected with the gas charging tube 2 through the first elastic reset assembly, the first elastic reset assembly comprises a first guide rod 20 and a first spring 21, the first guide rod 20 is arranged on the inner side of the gas charging tube 2, the first piston plate 15 is slidably arranged on the first guide rod 20, the periphery of the first guide rod 20 is provided with a sealing ring for guaranteeing the sealing performance between the first piston plate 15 and the first guide rod 20, the first spring 21 is sleeved on the first piston plate 20, the first piston plate is arranged on the lower portion of the first guide rod 20 and is movably connected with the first piston rod 18, the diameter of the piston rod is larger than the piston rod 2, the diameter of the piston rod is guaranteed, the piston rod is arranged on the piston rod is connected with the inner side of the first piston rod 2, and the piston rod is provided with the piston rod 18.
The detection mechanism comprises a transparent cylinder body 3, a second piston plate 22 and a second elastic reset component, wherein the transparent cylinder body 3 is arranged on a pressing plate 4, the transparent cylinder body 3 penetrates through a first sealing pad 5, the bottom end of the transparent cylinder body 3 is provided with an opening, the upper end and the lower end of the inner side of the transparent cylinder body 3 are respectively provided with an upper limiting ring 26 and a lower limiting ring 25, the second piston plate 22 is movably arranged on the inner side of the transparent cylinder body 3, the periphery of the second piston plate 22 is provided with a second sealing ring 24, the second piston plate 22 is elastically connected with the transparent cylinder body 3 through the second elastic reset component, the second elastic reset component comprises a second guide rod 27 and a second spring 28, the second guide rod 27 movably penetrates through the upper end of the transparent cylinder body 3 and is connected with the second plate 22, the second spring 28 is sleeved on the second guide rod 27, the upper end of the transparent cylinder body 3 is provided with a hole for the penetration of the second guide rod 27, the hole diameter is larger than the diameter of the second guide rod 27, the purpose of ensuring normal air outlet of the upper end of the transparent cylinder body 3, the outer wall of the transparent cylinder body 3 is provided with a scale 10, and the scale 10 is arranged on the outer wall of the transparent cylinder body 3, so that a transparent cylinder body can be accurately read by a person.
Specifically, when testing the reduction gear casing, place the differential mechanism end opening of reduction gear casing downwards on second sealed pad 8, adjust the position of reduction gear casing for the axle head opening of reduction gear casing is vertical to correspond with first sealed pad 5, and then through the drive assembly who sets up with drive clamp plate 4 down remove, clamp plate 4 removes and has driven first sealed pad 5 and remove, and first sealed pad 5 supports tightly in the axle head opening position department of reduction gear casing, and second sealed pad 8 and first sealed pad 5 form sealedly to the differential mechanism end opening of reduction gear casing and the axle head opening of reduction gear casing respectively this moment for reduction gear casing inner chamber forms seal structure.
The manual inflation mechanism is used for inflating the inside of the speed reducer shell, and the manual inflation mechanism specifically comprises the following steps that the first piston rod 18 is pushed downwards to move so as to drive the first piston plate 15 to move downwards, so that gas in the air inflation barrel 2 enters the cavity of the speed reducer shell through the inflation pipe 161, the second piston plate 22 moves upwards due to the fact that the air pressure in the speed reducer shell is increased, the first check valve can play a role in preventing the gas in the speed reducer shell from flowing backwards, after the push plate 19 is loosened, the first piston plate 15 is driven to reset under the elastic force of the first spring 21, at the moment, external gas enters the bottom cavity of the air inflation barrel 2 through the air inlet pipe 162, and the air inlet pipe 162 is arranged only to allow the gas to flow into the air inflation barrel 2 from the outside, so that the reciprocating circulation is performed until the second piston plate 22 contacts with the upper limit ring 26, at the moment, the second piston plate 22 moves to a limiting position, and then inflation work is stopped.
After waiting for a period of time, the operator observes the position corresponding to the first piston plate 15, judges whether the first piston plate 15 is displaced, and if the first piston plate 15 is displaced, the air leakage inside the reducer housing is indicated, otherwise, the tightness of the reducer housing is proved to be good.
Example two
As shown in fig. 1, in the present embodiment, compared with the first embodiment, the clamping mechanisms are all installed around the base 1, the first sliding grooves 101 are all formed around the base 1, the clamping mechanisms include the tightening blocks 9, the second threaded rods 13 and the second rotating handles 14, the bottom ends of the tightening blocks 9 are slidably installed in the first sliding grooves 101 on the corresponding sides, the second threaded rods 13 are rotatably installed in the first sliding grooves 101 on the corresponding sides, the tightening blocks 9 are in threaded connection with the second threaded rods 13, the second rotating handles 14 are arranged at the outer ends of the second threaded rods 13, and before the upper ends of the speed reducer housings are sealed, the clamping mechanisms around the clamping mechanisms are respectively adjusted, so that the tightening blocks 9 around the clamping mechanisms are respectively abutted against the periphery of the speed reducer housings, the fixing effect of the speed reducer housings can be improved, horizontal displacement of the speed reducer housings is prevented in the testing process, and the tightness of the speed reducer housings is further ensured.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.
Claims (7)
1. The utility model provides a reduction gear casing gas tightness detection device which characterized in that includes:
the base (1), is provided with the second sealing gasket (8) on the base (1);
The upper end sealing mechanism comprises a pressing plate (4), a first sealing gasket (5) arranged at the bottom end of the pressing plate (4) and a driving assembly for driving the pressing plate (4) to vertically move;
The device comprises an air charging pipe (161) and a manual air charging mechanism for conveying air to the inner side of the air charging pipe (161), wherein the output end of the air charging pipe (161) is positioned above the second sealing gasket (8), and a first one-way valve is arranged on the air charging pipe (161);
The detection mechanism comprises a transparent cylinder body (3), a second piston plate (22) and a second elastic reset component, wherein the transparent cylinder body (3) is arranged on a pressing plate (4), the transparent cylinder body (3) penetrates through a first sealing gasket (5), the bottom end of the transparent cylinder body (3) is provided with an opening, the upper end and the lower end of the inner side of the transparent cylinder body (3) are respectively provided with an upper limiting ring (26) and a lower limiting ring (25), the second piston plate (22) is movably arranged on the inner side of the transparent cylinder body (3), a second sealing ring (24) is arranged on the periphery of the second piston plate (22), and the second piston plate (22) is elastically connected with the transparent cylinder body (3) through the second elastic reset component.
2. The device for detecting the air tightness of the shell of the speed reducer according to claim 1, wherein the clamping mechanisms are arranged on the periphery of the base (1), the periphery of the base (1) is provided with first sliding grooves (101), each clamping mechanism comprises a supporting and tightening block (9), a second threaded rod (13) and a second rotating handle (14), the bottom ends of the supporting and tightening blocks (9) are slidably arranged in the first sliding grooves (101) on the corresponding sides, the second threaded rods (13) are rotatably arranged in the first sliding grooves (101) on the corresponding sides, the supporting and tightening blocks (9) are in threaded connection with the second threaded rods (13), and the second rotating handles (14) are arranged at the outer ends of the second threaded rods (13).
3. The device for detecting the air tightness of the reducer shell according to claim 1, wherein the manual air pumping mechanism comprises an air pumping barrel (2), a first piston plate (15), an air inlet pipe (162), a second one-way valve (172), a first piston rod (18), a push plate (19) and a first elastic reset component, the air pumping barrel (2) is installed on the base (1), the air pumping pipe (161) and the air inlet pipe (162) are both communicated with the inside of the air pumping barrel (2), the second one-way valve is installed on the air inlet pipe (162), the first piston plate (15) is movably arranged on the inner side of the air pumping barrel (2), a first sealing ring (23) is arranged on the periphery of the first piston plate (15), the first piston plate (15) is elastically connected with the air pumping barrel (2) through the first elastic reset component, and the first piston rod (18) movably penetrates through the inner side and the outer side of the air pumping barrel (2) and two ends of the first piston plate (15) and the push plate (19) are respectively connected.
4. A reducer casing air tightness detecting device according to claim 3, characterized in that the first elastic restoring component comprises a first guide rod (20) and a first spring (21), the first guide rod (20) is arranged on the inner side of the inflatable cylinder (2), the first piston plate (15) is arranged on the first guide rod (20) in a sliding manner, and the first spring (21) is sleeved on the lower portion of the first guide rod (20).
5. The device for detecting the air tightness of the reducer shell according to claim 1 is characterized in that a scale strip (10) is arranged on the outer wall of the transparent cylinder (3), and the transparent cylinder (3) is a transparent toughened glass cylinder.
6. The device for detecting the air tightness of the shell of the speed reducer according to claim 1, wherein the driving assembly comprises a sliding groove plate (6), a connecting sliding block (7), a first threaded rod (11) and a first rotating handle (12), the sliding groove plate (6) is arranged on the base (1), a second sliding groove (601) is vertically formed in the sliding groove plate (6), the first threaded rod (11) is rotatably arranged on the inner side of the second sliding groove (601), the upper end of the first threaded rod (11) extends out to the upper side of the sliding groove plate (6) and is connected with the first rotating handle (12), the end portion of the connecting sliding block (7) is slidably arranged on the inner side of the second sliding groove (601) and is in threaded connection with the first threaded rod (11), and the other end of the connecting sliding block (7) is connected with the pressing plate (4).
7. The device for detecting the air tightness of the reducer shell according to claim 1, wherein the second elastic reset assembly comprises a second guide rod (27) and a second spring (28), the second guide rod (27) movably penetrates through the upper end of the transparent cylinder body (3) and is connected with the second piston plate (22), and the second spring (28) is sleeved on the second guide rod (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423149974.4U CN223485425U (en) | 2024-12-20 | 2024-12-20 | A reducer housing air tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423149974.4U CN223485425U (en) | 2024-12-20 | 2024-12-20 | A reducer housing air tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223485425U true CN223485425U (en) | 2025-10-28 |
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ID=97432255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202423149974.4U Active CN223485425U (en) | 2024-12-20 | 2024-12-20 | A reducer housing air tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223485425U (en) |
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2024
- 2024-12-20 CN CN202423149974.4U patent/CN223485425U/en active Active
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