CN211978239U - Worm wheel housing gas tightness check out test set - Google Patents
Worm wheel housing gas tightness check out test set Download PDFInfo
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- CN211978239U CN211978239U CN202020273962.5U CN202020273962U CN211978239U CN 211978239 U CN211978239 U CN 211978239U CN 202020273962 U CN202020273962 U CN 202020273962U CN 211978239 U CN211978239 U CN 211978239U
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- die cavity
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- fixedly arranged
- air tightness
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Abstract
The utility model discloses a worm gear shell air tightness detection device, belonging to the air tightness detection field, comprising a machine body, a protection frame fixedly arranged on the upper surface of the machine body, a control box fixedly arranged on one side inside the protection frame and an air tightness detector fixedly arranged on one side inside the protection frame, which is far away from the control box; the air tightness detector is in communication connection with the control box; a workbench is fixedly arranged on the upper surface of the machine body, a lower die cavity is fixedly arranged on the upper surface of the workbench, a supporting seat is arranged in the lower die cavity, and an inflation tube longitudinally penetrating through the middle position of the supporting seat is arranged in the supporting seat; and an air pressure sensor in communication connection with the air tightness detector is arranged on the lower template. This worm wheel housing gas tightness check out test set has overcome external disturbance, has realized direct pressure difference leak hunting, and the testing result is directly perceived, has very high performance, and detection efficiency is high, can effectual reduction cost of labor.
Description
Technical Field
The utility model belongs to the technical field of the gas tightness detects, concretely relates to worm gear shell gas tightness check out test set.
Background
The worm gear shell is used for the shell of worm gear supercharging equipment, and worm gear supercharging equipment generally is used for fluid such as liquid, gas to carry out the pressure boost and uses, and in order to guarantee that the gas tightness of worm gear shell is good, after worm gear shell processing is accomplished or long-term the use, whether it is qualified to need to detect its gas tightness, especially to some special trades, its gas tightness is relatively poor can take place dangerously, therefore, the gas tightness of worm gear shell detects especially important.
The traditional method for detecting the tightness (also called leakage) of a test piece adopts a water immersion or oil immersion visual bubble method, the equipment is simple, the result is visual, but the detection precision and efficiency are low, the influence of human factors is large, the automatic quantitative leakage detection cannot be realized, meanwhile, the adverse effects of humidity rusting, impurity immersion and the like and the complex post-treatment of water (or oil) attached to the surface of the test piece are brought to a workpiece, and even some products are not allowed to be detected by the method.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a worm gear shell gas tightness check out test set to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a worm gear shell air tightness detection device comprises a machine body, a protection frame fixedly arranged on the upper surface of the machine body, a control box fixedly arranged on one side inside the protection frame, and an air tightness detector fixedly arranged on one side, far away from the control box, inside the protection frame; the air tightness detector is in communication connection with the control box; a workbench is fixedly arranged on the upper surface of the machine body, a lower die cavity is fixedly arranged on the upper surface of the workbench, a supporting seat is arranged in the lower die cavity, and an inflation tube longitudinally penetrating through the middle position of the supporting seat is arranged in the supporting seat; an air pressure sensor in communication connection with the air tightness detector is arranged on the lower die cavity; there is the backup pad directly over the workstation through support column fixed mounting, the below of backup pad is provided with the connecting plate, the last fixed surface of backup pad installs the cylinder, the movable rod of cylinder vertically run through in the backup pad and with connecting plate fixed connection, the bottom surface fixed mounting of connecting plate have with the last die cavity that the lower die cavity corresponds mutually, the inside of going up the die cavity has the apron through elasticity telescopic link fixed mounting.
The utility model discloses still possess following technical characteristic:
the supporting columns are four in number and are fixedly mounted at positions, corresponding to the four corners of the bottom surface of the supporting plate, of the upper surface of the workbench respectively.
And a telescopic rod is arranged between the end part of the connecting plate and the supporting plate.
The telescopic link includes fixed mounting fixed loop bar slidable mounting in the backup pad inside fixed loop bar, and with connecting plate fixed connection's movable rod, keep away from the one end of connecting plate with be provided with supporting spring between the fixed loop bar.
And a sealing ring for sealing the upper die cavity and the lower die cavity is bonded on the lower die cavity.
The upper surface of supporting seat with the lower surface of closing cap board all is provided with the sealed pad of sealed worm wheel shell tip.
In addition, worm wheel shell gas tightness check out test set still includes the universal wheel of installing in four corners of organism bottom surface.
Compared with the prior art, the beneficial effects of the utility model are that:
this worm wheel housing gas tightness check out test set adopts the differential pressure formula to detect, compares with traditional soaking or the visual bubble method of immersion oil, and its detection efficiency is high, can effectual reduction human factor's influence, can compare the damage of avoiding impurity to cause worm wheel housing simultaneously, convenient to use.
Drawings
FIG. 1 is a schematic structural diagram of a worm gear housing airtightness detection apparatus;
FIG. 2 is an enlarged schematic view of a worm casing airtightness detection apparatus at A in FIG. 1;
fig. 3 is a schematic structural view of a telescopic rod in the air tightness detection device for the worm gear housing.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.
As shown in fig. 1 and 2, the utility model provides a worm gear housing airtightness detection device, which comprises a machine body 1, a protection frame 2 fixedly installed on the upper surface of the machine body 1, a control box 4 fixedly installed on one side inside the protection frame 2, and an airtightness detector 5 fixedly installed inside the protection frame 2 and far away from one side of the control box 4; the air tightness detector 5 is in communication connection with the control box 4; a workbench 3 is fixedly arranged on the upper surface of the machine body 1, a lower die groove 12 is fixedly arranged on the upper surface of the workbench 3, a supporting seat 14 is arranged inside the lower die groove 12, and an inflation tube 15 longitudinally penetrating through the middle position of the supporting seat 14 is arranged inside the supporting seat 14; an air pressure sensor 16 in communication connection with the air tightness detector 5 is arranged on the lower die cavity 12; a supporting plate 11 is fixedly arranged right above the workbench 3 through a supporting column 6, a connecting plate 9 is arranged below the supporting plate 11, an air cylinder 8 is fixedly arranged on the upper surface of the supporting plate 11, a movable rod of the air cylinder 8 longitudinally penetrates through the supporting plate 11 and is fixedly connected with the connecting plate 9, an upper die groove 13 corresponding to the lower die groove 12 is fixedly arranged on the bottom surface of the connecting plate 9, and a sealing cover plate 17 is fixedly arranged in the upper die groove 13 through an elastic telescopic rod 18.
When the air tightness is detected, one end of a worm gear shell is fixed in a lower die groove 12, one port of the worm gear shell is connected with a supporting seat 14, then a control box 4 controls an air cylinder 8 to operate, a piston rod of the air cylinder 8 extends out of the cylinder body, so that a connecting plate 9 is driven to move downwards, an upper die groove 13 is driven to move downwards, a cover plate 17 in the upper die groove 13 is sealed at the other end of the worm gear shell, then an inflation mechanism is controlled by a controller 4 to fill air into the worm gear shell through an inflation tube 15, after a period of time, air pressure in the lower die groove 12 and the upper die groove 13 is detected by an air pressure sensor 16, the air pressure data is transmitted back to an air tightness detector 4, the air tightness detector 4 is compared with an original set parameter, and if an air pressure difference occurs between the air pressure data and the set air pressure parameter, the worm gear shell is; otherwise, the air pressure is judged to be qualified, and therefore the air pressure tightness is detected.
This worm wheel housing gas tightness check out test set adopts the differential pressure formula to detect, compares with traditional soaking or the visual bubble method of immersion oil, and its detection efficiency is high, can effectual reduction human factor's influence, can compare the damage of avoiding impurity to cause worm wheel housing simultaneously, convenient to use.
In order to ensure the structural stability of the supporting plate 11, as shown in fig. 1, four supporting columns 6 are provided, and the four supporting columns 6 are respectively and fixedly installed at positions, corresponding to four corners of the bottom surface of the supporting plate 11, on the upper surface of the workbench 3. Support plate 11 is supported above workstation 3 through four support columns 6 to make support plate 11 have stronger supporting capacity, make the installation of cylinder 8 more stable.
Further, in order to improve the structural stability of the upper cavity 13, as shown in fig. 1, a telescopic rod 10 is arranged between the end of the connecting plate 9 and the supporting plate 11. The connecting plate 9 is guided by the four telescopic rods 10, so that the upper mold cavity 13 can be stably moved downwards to be matched and closed with the lower mold cavity 12.
Specifically, as shown in fig. 3, the telescopic rod 10 includes a fixed rod 101 slidably mounted on the support plate 11 and a movable rod 102, 102 slidably mounted inside the fixed rod 101 and fixedly connected to the connecting plate 9, and a support spring 103 is disposed between one end of the movable rod 102 far away from the connecting plate 9 and the fixed rod 101.
Further, in order to ensure the sealing performance of the mold, as shown in fig. 2, a sealing ring 20 for sealing the upper cavity 13 and the lower cavity 12 is bonded to the lower cavity 12. The sealing ring 20 seals the connecting gap between the upper die groove 13 and the lower die groove 12, so that the air pressure in the die is prevented from leaking to influence the accuracy of the air tightness detection of the workpiece.
Still further, in order to ensure the accuracy of the air tightness detection of the workpiece, as shown in fig. 2, the upper surface of the supporting seat 14 and the lower surface of the cover plate 17 are provided with sealing gaskets 19 for sealing the end portions of the worm wheel housing. The opening position of the end part of the workpiece is sealed by the sealing gasket 19, so that the gas is prevented from being released from the end part position of the workpiece after the workpiece is inflated, the gas pressure in the die is increased, and the accuracy of gas tightness detection is influenced.
In addition, in order to facilitate the movement of the apparatus, the worm casing airtightness detection apparatus further includes universal wheels (not shown) mounted at four corners of the bottom surface of the machine body 1. The universal wheel is provided with a foot brake, and when the equipment needs to move, the equipment can be pushed only by opening the foot brake of the universal wheel, so that the equipment can be moved to a specified place; meanwhile, when the universal wheel needs to be fixed, the universal wheel can be fixed only by stepping down a foot brake of the universal wheel.
When the device is used, the foot brake of the universal wheel is firstly opened, the device is pushed to a specified working point, then the foot brake of the universal wheel is stepped down, the device is fixed at the working point, then the device is connected with an external power supply, one port of a workpiece is placed on the sealing gasket 19 of the supporting seat 14, then the control box 4 controls the operation of the air cylinder 8, the piston rod of the air cylinder 8 extends out of the cylinder body, so that the connecting plate 9 is driven to move downwards, the upper die cavity 13 is in close contact with the sealing ring 20 on the lower die cavity 12, the elastic telescopic rod in the upper die cavity 13 retracts 18 (the structure of the elastic telescopic rod 18 is the same as that of the telescopic rod 10), the sealing gasket 19 on the sealing cover plate 17 is sealed at the other end of the worm gear shell, then the controller 4 controls the inflation mechanism to inflate the air into the worm gear shell, after a period of time, detecting the air pressure in the lower die cavity 12 and the upper die cavity 13 through an air pressure sensor 16, transmitting the air pressure data back to the air tightness detector 4, comparing the air tightness data with the original set parameters in the air tightness detector 4, and judging that the worm gear shell is unqualified if the air pressure difference with the set air pressure parameters occurs; otherwise, the air pressure is judged to be qualified, and therefore the air pressure tightness is detected.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A worm gear shell air tightness detection device comprises a machine body, a protection frame fixedly arranged on the upper surface of the machine body, a control box fixedly arranged on one side inside the protection frame, and an air tightness detector fixedly arranged on one side, far away from the control box, inside the protection frame; the air tightness detector is in communication connection with the control box; the method is characterized in that: a workbench is fixedly arranged on the upper surface of the machine body, a lower die cavity is fixedly arranged on the upper surface of the workbench, a supporting seat is arranged in the lower die cavity, and an inflation tube longitudinally penetrating through the middle position of the supporting seat is arranged in the supporting seat; an air pressure sensor in communication connection with the air tightness detector is arranged on the lower die cavity; there is the backup pad directly over the workstation through support column fixed mounting, the below of backup pad is provided with the connecting plate, the last fixed surface of backup pad installs the cylinder, the movable rod of cylinder vertically run through in the backup pad and with connecting plate fixed connection, the bottom surface fixed mounting of connecting plate have with the last die cavity that the lower die cavity corresponds mutually, the inside of going up the die cavity has the apron through elasticity telescopic link fixed mounting.
2. The worm-gear housing airtightness detection apparatus according to claim 1, wherein: the supporting columns are four in number and are fixedly mounted at positions, corresponding to the four corners of the bottom surface of the supporting plate, of the upper surface of the workbench respectively.
3. The worm-gear housing airtightness detection apparatus according to claim 2, wherein: and a telescopic rod is arranged between the end part of the connecting plate and the supporting plate.
4. The worm-gear housing airtightness detection apparatus according to claim 3, wherein: the telescopic link includes fixed mounting fixed loop bar slidable mounting in the backup pad inside fixed loop bar, and with connecting plate fixed connection's movable rod, keep away from the one end of connecting plate with be provided with supporting spring between the fixed loop bar.
5. The worm-gear housing airtightness detection apparatus according to claim 1, wherein: and a sealing ring for sealing the upper die cavity and the lower die cavity is bonded on the lower die cavity.
6. The worm-gear housing airtightness detection apparatus according to claim 1, wherein: the upper surface of supporting seat with the lower surface of closing cap board all is provided with the sealed pad of sealed worm wheel shell tip.
7. The worm-gear housing airtightness detection apparatus according to any one of claims 1 to 6, wherein: the worm gear shell air tightness detection equipment further comprises universal wheels arranged at four corners of the bottom surface of the machine body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020273962.5U CN211978239U (en) | 2020-03-09 | 2020-03-09 | Worm wheel housing gas tightness check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020273962.5U CN211978239U (en) | 2020-03-09 | 2020-03-09 | Worm wheel housing gas tightness check out test set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211978239U true CN211978239U (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020273962.5U Active CN211978239U (en) | 2020-03-09 | 2020-03-09 | Worm wheel housing gas tightness check out test set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211978239U (en) |
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2020
- 2020-03-09 CN CN202020273962.5U patent/CN211978239U/en active Active
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