CN214309311U - Air tightness detection device of motor bearing bush guide cylinder - Google Patents
Air tightness detection device of motor bearing bush guide cylinder Download PDFInfo
- Publication number
- CN214309311U CN214309311U CN202022397698.9U CN202022397698U CN214309311U CN 214309311 U CN214309311 U CN 214309311U CN 202022397698 U CN202022397698 U CN 202022397698U CN 214309311 U CN214309311 U CN 214309311U
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- Prior art keywords
- air
- bearing bush
- guide cylinder
- screw rod
- guide
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 34
- 239000007789 gas Substances 0.000 claims description 23
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- 238000009423 ventilation Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- Motor Or Generator Frames (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The utility model provides an air tightness detection device of motor axle bush guide cylinder, connect including backing plate, clamp plate and ventilating, the backing plate fills up in the axle bush lower extreme to plug up the lower extreme of the air guide way of axle bush, the backing plate axial is equipped with a screw rod, the vertical setting of screw rod and its lower extreme connect in on the backing plate, the clamp plate overlap in the screw rod upper end, the screw rod top is equipped with a fastener, the fastener compresses tightly fixedly the clamp plate, the joint of ventilating is compressed tightly in the upper end of air guide way, and ventilates and connect an air duct even, the beneficial effects of the utility model are that: the air tightness detection device can block the lower ends of the air guide channels in the guide cylinder and the bearing bush, and high-pressure gas is introduced from the upper ends of the air guide channels, so that the air tightness between the guide cylinder and the bearing bush is detected, whether the connection between the guide cylinder and the bearing bush meets the requirement or not is determined, the device is simple to operate, high in reliability and capable of effectively improving the air tightness detection efficiency of the guide cylinder and the bearing bush.
Description
Technical Field
The utility model discloses the assembly quality field is made to the motor, especially relates to an air tightness detection device of motor axle bush guide cylinder.
Background
The guide cylinder and the bearing bush of the motor are connected in a hot sleeve mode, a gas guide channel is formed in the guide cylinder and the bearing bush, and the gas tightness of the guide cylinder and the bearing bush of the motor needs to be guaranteed, so that whether the gas guide channel leaks or not needs to be detected after the guide cylinder and the bearing bush are connected in the hot sleeve mode, and the assembly connection of the guide cylinder and the bearing bush meets the requirements.
SUMMERY OF THE UTILITY MODEL
In view of this, an embodiment of the present invention provides an air tightness detecting device for a motor bearing bush guide cylinder, is used for detecting the air tightness between the guide cylinder and the bearing bush by detecting whether the guide cylinder leaks air or not and the air duct in the bearing bush, the detection device comprises a base plate, a pressure plate and a ventilation joint, wherein the base plate is padded at the lower end of the bearing bush, and block all the lower ends of the air guide channels, a screw rod is axially arranged on the base plate, the screw rod is vertically arranged, the lower end of the screw rod is connected to the base plate, the middle part of the pressure plate is provided with a rectangular hole, the pressure plate is sleeved at the upper end of the screw rod, a fastener is arranged above the screw rod, the fastener is used for pressing and fixing the pressure plate, the air vent joint is pressed at the upper end of the air guide channel, and the ventilation connecting head is connected with an air duct which is used for guiding high-pressure gas into the air guide duct so as to judge whether the air guide duct leaks air.
Furthermore, the backing plate is a circular plate, an annular sealing gasket is arranged between the backing plate and the lower end of the bearing bush, and the sealing gasket is pressed at the lower end of the bearing bush by the backing plate.
Further, the sealing gasket is made of rubber.
Furthermore, the ventilation connector comprises an air inlet pipe, an air outlet pipe and a pressing block, the air inlet pipe is connected to the upper end of the pressing block, the air outlet pipe is connected to the lower end of the pressing block, the air inlet pipe and the air outlet pipe are communicated with each other, the air inlet pipe is connected with the air guide pipe, the air outlet pipe is inserted into the upper end of the air guide pipe, and the pressing plate presses the pressing block to tightly press the ventilation connector on the upper end of the air guide pipe.
Further, the detection device further comprises a nitrogen tank, the air guide channel is connected with the nitrogen tank and the air vent joint, and the nitrogen tank is used for providing high-pressure gas.
Furthermore, the screw rod is provided with threads, the fastening piece is a fastening nut, and the fastening nut is sleeved at the upper end of the screw rod so as to tightly press and fix the pressing plate.
The utility model relates to an air tightness detection device of motor axle bush guide cylinder's beneficial effect does: the air tightness detection device can block the lower ends of air guide channels in the guide cylinder and the bearing bush, and introduce high-pressure gas from the upper ends of the air guide channels, so that the air tightness between the guide cylinder and the bearing bush is detected, and whether the connection between the guide cylinder and the bearing bush meets the requirements is determined; and the device is simple to operate, and the reliability is high, can effectively improve the gas tightness detection efficiency of guide cylinder and axle bush.
Drawings
Fig. 1 is a connection structure diagram of a motor guide cylinder 1 and a bearing bush 2.
Fig. 2 is a top view of the guide tube 1 of fig. 1.
Fig. 3 is a schematic view of an air tightness detecting device of a motor bearing bush guide cylinder during operation.
Fig. 4 is a cross-sectional view of the air tightness detecting device of the motor bearing bush guide cylinder in fig. 3 during operation.
Fig. 5 is a top view of the air tightness detecting device of the motor bearing bush guide cylinder in fig. 3 during operation.
In the above figures: 1-guide cylinder, 11-first air guide hole, 12-air guide ring, 13-air guide channel, 2-bearing bush, 21-second air guide hole, 3-backing plate, 31-screw, 32-fastening nut, 33-sealing gasket, 4-pressing plate, 41-rectangular groove, 5-air-vent joint, 51-air inlet pipe, 52-pressing block, 53-air outlet pipe and 6-air guide pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a guide cylinder 1 and a bearing bush 2 of a motor are both in a circular sleeve shape, a first air guide hole 11 is formed in a side wall of the guide cylinder 1, a plurality of second air guide holes 21 are formed in a side wall of the bearing bush 2, the guide cylinder 1 is sleeved above the bearing bush 2, an air guide ring 12 is formed between the guide cylinder 1 and the bearing bush 2, the air guide ring 12 is communicated with the first air guide hole 11 and all the second air guide holes 21 and forms an air guide channel 13 together with the first air guide hole 11 and all the second air guide holes 21, the guide cylinder 1 and the bearing bush 2 are connected in a heat sleeve manner, so that the guide cylinder 1 and the bearing bush 2 are integrated, and the air tightness between the guide cylinder 1 and the bearing bush 2 needs to be ensured, therefore, after the guide cylinder 1 and the bearing bush 2 are connected in the heat sleeve manner, whether the air guide channel 13 leaks or not needs to detect the air tightness between the guide cylinder 1 and the bearing bush 2.
Referring to fig. 3 to 5, the present invention provides an air tightness detecting device for a motor bearing bush guide cylinder, which is used for detecting the air tightness between the guide cylinder 1 and the bearing bush 2 by detecting whether the air guide channel 13 leaks air. This detection device includes backing plate 3, clamp plate 4 and ventilation joint 5, backing plate 12 is the disc shape that the diameter is greater than axle bush 2 diameter, and this backing plate 3 fills up in axle bush 2 lower extreme to plug up the lower extreme of all second air guide holes 21, 3 axial of backing plate are equipped with a screw rod 31, the vertical setting of screw rod 31 and its lower extreme connect in on the backing plate 3, screw rod 31 upper end extends to on the guide tube 1, be equipped with the screw thread on the screw rod 31.
The pressing plate 4 is rectangular frame-shaped, a rectangular hole 41 is formed in the middle of the pressing plate 4, the pressing plate 4 is sleeved at the upper end of the screw rod 31, a fastening piece is arranged above the screw rod 31, preferably, the fastening piece is a fastening nut 32, the fastening nut 32 is connected to the upper end of the screw rod 31 in a threaded connection mode, and the pressing plate 4 is pressed and fixed.
The ventilation joint 5 comprises an air inlet pipe 51, an air outlet pipe 52 and a compression block 53, the air inlet pipe 51 is connected to the upper end of the compression block 52, the air outlet pipe 53 is connected to the lower end of the compression block 52, the air inlet pipe 51 is communicated with the air outlet pipe 53, preferably, the compression block 52 is made of rubber, the compression block 52 is cylindrical, the diameter of the compression block is larger than the width of the rectangular hole 41, the diameter of the air inlet pipe 51 is smaller than the width of the rectangular hole 41, the ventilation joint 5 is positioned at the upper end of the guide cylinder 1, the air outlet pipe 53 is inserted into the first air guide hole 11, the compression block 52 is positioned below the pressure plate 4 and is compressed by the pressure plate 41, the air inlet pipe 51 passes through the rectangular hole 41, the upper end of the air inlet pipe 51 is provided with an air guide pipe 6, one end of the air guide pipe 6 is connected with the air inlet pipe 51, the other end is connected with a nitrogen tank (the nitrogen tank is not shown in the figure), the nitrogen tank is filled with high-pressure nitrogen (2-10MPa), the compressing block 52 is used for compressing and fixing the ventilation joint 5 at the upper end of the first air guide hole 11 through the pressing plate 4 and blocking the upper end of the first air guide hole 11, and the air guide tube 6 is used for guiding high-pressure gas (nitrogen) into the air guide channel 13 in the nitrogen tank, so that the air tightness between the guide cylinder 1 and the bearing bush 2 is monitored according to whether the air guide channel 13 leaks air.
Further, an annular sealing gasket 33 is arranged between the backing plate 3 and the lower end of the bearing bush 2, the sealing gasket 33 is compressed by the backing plate 3 to the lower end of the bearing bush 2, preferably, the sealing gasket 33 is made of rubber, and the sealing gasket 33 is used for sealing the lower ends of all the second air guide holes 21 so as to prevent air leakage at the lower ends of the second air guide holes 21 from affecting air tightness detection between the guide sleeve 1 and the bearing bush 2.
The utility model relates to an air tightness detection device of motor axle bush guide cylinder's working process does: the air vent joint 5 is tightly pressed at the upper end of the first air guide hole 11 through the pressing block 4; opening a valve of the nitrogen tank, adjusting the pressure of the nitrogen output by the nitrogen tank, introducing high-pressure nitrogen in the nitrogen tank into the air guide channel 13, and putting a strip-shaped test strip (the test strip can be a plastic strip or a cloth strip) into the guide cylinder 1 and the bearing bush 2 to enable the test strip to be vertically arranged in the guide cylinder 1 and the bearing bush 2 along the axial direction; if the test strip floats and shakes in the guide cylinder 1 and the bearing bush 2, the air leakage of the air guide channel 13 is indicated, and then the air tightness difference between the guide cylinder 1 and the bearing bush 2 is judged, the connection between the guide cylinder 1 and the bearing bush 2 is not in accordance with requirements, if the test strip does not float and shake in the guide cylinder 1 and the bearing bush 2, the air tightness between the guide cylinder 1 and the bearing bush 2 is judged to be good, and the connection between the guide cylinder 1 and the bearing bush 2 is in accordance with requirements. In addition, a pressure gauge can be additionally arranged on the gas guide tube, after high-pressure gas is introduced into the gas guide tube 13, if the gas pressure value displayed by the pressure gauge is gradually reduced, the gas leakage of the gas guide tube 13 is indicated, and if the gas pressure value displayed by the pressure gauge is unchanged, the gas leakage of the gas guide tube 13 is indicated.
The utility model relates to an air tightness detection device of motor axle bush guide cylinder's beneficial effect does: the air tightness detection device can block the lower ends of air guide channels 13 in the guide cylinder 1 and the bearing bush 2, and introduce high-pressure gas from the upper ends of the air guide channels, so that the air tightness between the guide cylinder 1 and the bearing bush 2 is detected, and whether the connection between the guide cylinder 1 and the bearing bush 2 meets the requirement or not is determined; and the device is simple to operate, and the reliability is high, can effectively improve guide cylinder 1 and axle bush 2's gas tightness detection efficiency.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides an air tightness detection device of motor axle bush guide cylinder for whether leak gas through the air duct that leads that detects in guide cylinder and the axle bush to detect the air tightness between guide cylinder and the axle bush, its characterized in that: the detection device comprises a base plate, a pressing plate and a ventilation connector, wherein the base plate is arranged at the lower end of the bearing bush in a cushioning mode, the lower end of the air guide channel is blocked, a screw rod is axially arranged on the base plate, the screw rod is vertically arranged, the lower end of the screw rod is connected to the base plate, a rectangular hole is formed in the middle of the pressing plate, the pressing plate is sleeved at the upper end of the screw rod, a fastener is arranged above the screw rod, the fastener is pressed and fixed on the pressing plate, the ventilation connector is pressed at the upper end of the air guide channel, the ventilation connector is connected with an air guide tube, and the air guide tube is used for guiding high-pressure gas into the air guide channel to judge whether the air guide channel leaks gas or not.
2. The device for detecting the air tightness of the motor bearing bush guide cylinder as claimed in claim 1, wherein: the bearing bush is characterized in that the base plate is a circular plate, an annular sealing gasket is arranged between the base plate and the lower end of the bearing bush, and the sealing gasket is pressed at the lower end of the bearing bush by the base plate.
3. The device for detecting the air tightness of the motor bearing bush guide cylinder as claimed in claim 2, is characterized in that: the sealing gasket is made of rubber.
4. The device for detecting the air tightness of the motor bearing bush guide cylinder as claimed in claim 1, wherein: the ventilation connector comprises an air inlet pipe, an air outlet pipe and a pressing block, the air inlet pipe is connected to the upper end of the pressing block, the air outlet pipe is connected to the lower end of the pressing block, the air inlet pipe and the air outlet pipe are communicated with each other, the air inlet pipe is connected with the air guide pipe, the air outlet pipe is inserted into the upper end of the air guide pipe, and the pressing plate presses the pressing block to tightly press the ventilation connector on the upper end of the air guide pipe.
5. The device for detecting the air tightness of the motor bearing bush guide cylinder as claimed in claim 1, wherein: the detection device further comprises a nitrogen tank, the air guide channel is connected with the nitrogen tank and the air vent joint, and the nitrogen tank is used for providing high-pressure gas.
6. The device for detecting the air tightness of the motor bearing bush guide cylinder as claimed in claim 1, wherein: the screw rod is provided with threads, the fastening piece is a fastening nut, and the fastening nut is sleeved at the upper end of the screw rod so as to tightly press and fix the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022397698.9U CN214309311U (en) | 2020-10-23 | 2020-10-23 | Air tightness detection device of motor bearing bush guide cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022397698.9U CN214309311U (en) | 2020-10-23 | 2020-10-23 | Air tightness detection device of motor bearing bush guide cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214309311U true CN214309311U (en) | 2021-09-28 |
Family
ID=77839794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022397698.9U Expired - Fee Related CN214309311U (en) | 2020-10-23 | 2020-10-23 | Air tightness detection device of motor bearing bush guide cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214309311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888650A (en) * | 2022-06-28 | 2022-08-12 | 广东韶钢松山股份有限公司 | Static pressure bearing tile |
-
2020
- 2020-10-23 CN CN202022397698.9U patent/CN214309311U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888650A (en) * | 2022-06-28 | 2022-08-12 | 广东韶钢松山股份有限公司 | Static pressure bearing tile |
| CN114888650B (en) * | 2022-06-28 | 2023-05-30 | 广东韶钢松山股份有限公司 | Static pressure support tile |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210928 |
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| CF01 | Termination of patent right due to non-payment of annual fee |