CN110887614A - Motor flange end cover air tightness detection device - Google Patents
Motor flange end cover air tightness detection device Download PDFInfo
- Publication number
- CN110887614A CN110887614A CN201911301338.XA CN201911301338A CN110887614A CN 110887614 A CN110887614 A CN 110887614A CN 201911301338 A CN201911301338 A CN 201911301338A CN 110887614 A CN110887614 A CN 110887614A
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- flange
- end cover
- air
- motor
- water tank
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/10—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for containers, e.g. radiators
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a motor flange end cover air tightness detection device; the flange is pressed by descending the upper air cylinder, the flange spigot is formed on the motor flange end cover body and sealed with the flange base, the lower air cylinder drives the water tank to ascend upwards, the liquid level in the water tank is enabled to be beyond the motor flange end cover body, air with certain air pressure is introduced into a ventilation hole channel of the flange base through an external air source, the air enters a containing cavity formed between the end cover body and the flange base, whether bubbles are generated in the water tank is observed, through a simple mechanical structure, the air tightness of the motor flange end cover can be rapidly and visually detected, the air tightness of the motor flange end covers of different models can be tested by replacing a flange positioning ring, a corrugated rubber pad is arranged on the lower portion of the pressing plate, when the upper air cylinder presses the motor flange end cover downwards, the connection between the flange end cover and the flange base is enabled to be more compact and stable, and the accuracy.
Description
Technical Field
The invention relates to the technical field of motor quality detection devices, in particular to a motor flange end cover air tightness detection device.
Background
In order to prevent the internal structure of the motor from being corroded, particularly the motor which needs to be used underwater, the high requirement on the air tightness of the motor is met, and the phenomenon that water enters a motor shell to corrode the internal structure is avoided. In the production process of the motor shell, the problem of poor air tightness possibly caused by machining errors or burrs on a flange of a motor shell end cover exists, and how to efficiently detect the air tightness of the motor flange end cover through a simple detection structure is a problem which needs to be solved urgently.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the motor flange end cover air tightness detection device is simple in structure and high in detection efficiency.
In order to solve the technical problems, the invention adopts the technical scheme that:
a motor flange end cover air tightness detection device comprises a frame, a lower air cylinder, a water tank, a flange base, a flange positioning ring and an upper air cylinder;
the lower cylinder is vertically and upwards fixed at the lower part of the rack, the water tank is fixed at the upper end of a piston rod of the lower cylinder, the flange base is fixed on the rack and positioned right above the water tank, and the flange base is immersed in the water tank under the condition that the lower cylinder drives the water tank to rise;
the flange base is provided with a vent hole, the initial end of the vent hole is positioned at the side part of the flange base, the tail end of the vent hole is positioned at the upper part of the flange base, and the vent hole is in ventilation connection with an air source through the initial end of the vent hole;
the flange positioning ring is fixed on the upper part of the flange base and is used for positioning and connecting with a motor flange end cover body to be detected;
the upper air cylinder is vertically and downwards fixed on the upper portion of the rack, a pressing plate is arranged at the lower end of a piston rod of the upper air cylinder and located right above the flange base, and a corrugated rubber pad is arranged on the lower portion of the pressing plate.
The invention has the beneficial effects that: according to the device for detecting the air tightness of the motor flange end cover, the air tightness of the motor flange end cover can be rapidly and visually detected through a simple mechanical structure, the air tightness of different types of motor flange end covers can be tested through replacing the flange positioning ring, and the corrugated rubber pads are arranged on the lower portion of the pressing plate, so that the flange end cover and the flange base are connected more tightly and stably when the upper air cylinder presses the motor flange end cover downwards, and the accuracy of a detection result is improved.
Drawings
Fig. 1 is a schematic structural diagram of a device for detecting the airtightness of a flange end cover of a motor according to an embodiment of the present invention;
description of reference numerals:
1. a frame; 11. an upper transverse frame; 12. a middle transverse frame; 121. a column; 13. a lower cross frame; 14. a guide rail; 15. a slider; 2. a lower cylinder; 3. a water tank; 4. a flange base; 41. a vent passage; 5. a flange positioning ring; 6. an upper cylinder; 7. a compressed air station; 8. an air tube; 81. a pneumatic valve; 9. a motor flange end cover body; 10. and (7) a rubber pad.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: through simple mechanical structure, can be fast audio-visual the gas tightness of detection motor flange end cover, can test the gas tightness of the motor flange end cover of different models through changing the flange holding ring.
Referring to fig. 1, the invention relates to a motor flange end cover air tightness detection device, which comprises a frame 1, a lower air cylinder 2, a water tank 3, a flange base 4, a flange positioning ring 5 and an upper air cylinder 6;
the lower cylinder 2 is vertically and upwards fixed at the lower part of the rack 1, the water tank 3 is fixed at the upper end of a piston rod of the lower cylinder 2, the flange base 4 is fixed on the rack 1, the flange base 4 is positioned right above the water tank 3, and the flange base 4 is immersed in the water tank 3 in a state that the lower cylinder 2 drives the water tank 3 to ascend;
the flange base 4 is provided with a vent hole channel 41, the starting end of the vent hole channel 41 is positioned at the side part of the flange base 4, the tail end of the vent hole channel 41 is positioned at the upper part of the flange base 4, and the flange base is in ventilation connection with an air source through the starting end of the vent hole channel 41;
the flange positioning ring 5 is fixed on the upper part of the flange base 4 and is used for being connected with a motor flange end cover body 9 to be measured in a positioning mode;
the upper air cylinder 6 is vertically and downwards fixed on the upper portion of the rack 1, a pressing plate is arranged at the lower end of a piston rod of the upper air cylinder 6 and located right above the flange base 4, and a corrugated rubber pad 10 is arranged on the lower portion of the pressing plate.
The working principle of the motor flange end cover air tightness detection device is as follows: during testing, a motor flange end cover body 9 is positioned and placed on a flange base 4 through a flange positioning ring 5, an upper air cylinder 6 descends to apply pressure to a flange, a flange spigot is formed on the motor flange end cover body 9 to be sealed with the flange base 4, a lower air cylinder 2 drives a water tank 3 to ascend upwards, so that the liquid level in the water tank 3 does not exceed the motor flange end cover body 9, air with certain air pressure is introduced into a ventilation hole channel 41 of the flange base 4 through an external air source, the air enters a containing cavity formed between the end cover body and the flange base 4, whether bubbles are generated in the water tank 3 or not is observed, and if the bubbles are generated, the poor air tightness of the motor flange end cover is indicated; after the test is finished, the air pressure valve 81 is closed, the lower air cylinder 2 descends, the upper air cylinder 6 ascends, and the flange is taken out to finish the test.
Among the above-mentioned motor flange end cover gas tightness detection device structure, through simple mechanical structure, can be fast audio-visual the gas tightness of detection motor flange end cover, through the gas tightness of the motor flange end cover of the testable different models of change flange holding ring 5, through setting up corrugate rubber pad 10 in the lower part of clamp plate, when making last cylinder 6 push down motor flange end cover, make the connection of flange end cover and flange base 4 inseparabler and firm more to improve the accuracy of testing result.
Further, in the above structure of the device for detecting the airtightness of the flange end cover of the motor, the frame 1 includes an upper cross frame 11, a middle cross frame 12 and a lower cross frame 13, the lower cylinder 2 is fixed on the lower cross frame 13, the upper cylinder 6 is fixed on the upper cross frame 11, the flange base 4 is fixed on the middle cross frame 12, and the middle cross frame 12 is fixed on the upper cross frame 11 through more than 2 vertical columns 121.
Further, in the above structure of the device for detecting the airtightness of the flange end cover of the motor, the rack 1 is further provided with a guide rail 14 in the vertical direction, the outside of the water tank 3 is connected with a slide block 15, and the slide block 15 is movably connected with the guide rail 14.
It can be known from the above description, through set up vertical direction's guide rail 14 on frame 1, cooperate with guide rail 14 through 3 external connection's of water tank slider 15, when lower cylinder 2 drove 3 vertical direction of water tank and removes, slider 15 removed along vertical guide rail 14 direction, played spacing and supplementary fixed effect.
Further, in the structure of the device for detecting the airtightness of the flange end cover of the motor, the device further comprises a compressed air station 7 and an air pipe 8, wherein one end of the air pipe 8 is connected to an air outlet end of the compressed air station 7, and the other end of the air pipe 8 is connected to the starting end of the ventilation duct 41 of the flange base 4.
As will be appreciated from the above description, air is compressed by the compressed air station 7 and delivered through the air tube 8 into the receiving cavity formed between the flange base 4 and the end cap body.
Further, in the above structure of the device for detecting the airtightness of the flange end cover of the motor, the air pipe 8 is provided with a pressure gauge and an air pressure valve 81.
As can be seen from the above description, the pressure gauge connected to the middle of the air pipe 8 displays the air pressure inputted to the flange base 4 and is controlled by the air pressure valve 81.
Furthermore, in the structure of the device for detecting the air tightness of the flange end cover of the motor, the upper edge of the flange base 4 is provided with a sealing ring.
As can be seen from the above description, the sealing ring is arranged at the upper edge of the flange base 4, so that the influence on the accuracy of the detection structure caused by the leakage of air from the gap between the flange end cover and the flange base 4 in the detection process is avoided.
Further, in the structure of the device for detecting the air tightness of the flange end cover of the motor, the sealing ring is an annular rubber pad 10.
Further, in the above-mentioned motor flange end cover gas tightness detection device structure, still include PLC, PLC is connected with last cylinder 6, lower cylinder 2 and pneumatic valve 81 electricity respectively.
According to the above description, the upper cylinder 6, the lower cylinder 2 and the air pressure valve 81 are controlled by the PLC according to the set program, so that the air tightness detection of the flange end cover of the motor is automated, and the detection efficiency is further improved.
Example 1
The motor flange end cover air tightness detection device comprises a frame 1, a lower air cylinder 2, a water tank 3, a flange base 4, a flange positioning ring 5 and an upper air cylinder 6; the lower cylinder 2 is vertically and upwards fixed at the lower part of the rack 1, the water tank 3 is fixed at the upper end of a piston rod of the lower cylinder 2, the flange base 4 is fixed on the rack 1, the flange base 4 is positioned right above the water tank 3, and the flange base 4 is immersed in the water tank 3 in a state that the lower cylinder 2 drives the water tank 3 to ascend; the flange base 4 is provided with a vent hole channel 41, the starting end of the vent hole channel 41 is positioned at the side part of the flange base 4, the tail end of the vent hole channel 41 is positioned at the upper part of the flange base 4, and the flange base is in ventilation connection with an air source through the starting end of the vent hole channel 41; the flange positioning ring 5 is fixed on the upper part of the flange base 4 and is used for being connected with a motor flange end cover body 9 to be measured in a positioning mode; the upper air cylinder 6 is vertically and downwards fixed on the upper portion of the rack 1, a pressing plate is arranged at the lower end of a piston rod of the upper air cylinder 6 and located right above the flange base 4, and a corrugated rubber pad 10 is arranged on the lower portion of the pressing plate.
During testing, a motor flange end cover body 9 is positioned and placed on a flange base 4 through a flange positioning ring 5, an upper air cylinder 6 descends to apply pressure to a flange, a flange spigot is formed on the motor flange end cover body 9 to be sealed with the flange base 4, a lower air cylinder 2 drives a water tank 3 to ascend upwards, so that the liquid level in the water tank 3 does not exceed the motor flange end cover body 9, air with certain air pressure is introduced into a ventilation hole channel 41 of the flange base 4 through an external air source, the air enters a containing cavity formed between the end cover body and the flange base 4, whether bubbles are generated in the water tank 3 or not is observed, and if the bubbles are generated, the poor air tightness of the motor flange end cover is indicated; after the test is finished, the air pressure valve 81 is closed, the lower air cylinder 2 descends, the upper air cylinder 6 ascends, and the flange is taken out to finish the test. Through simple mechanical structure, can be fast audio-visual the gas tightness of detection motor flange end cover, through the gas tightness of the motor flange end cover of changing different models of flange holding ring 5 testable, through set up corrugate rubber pad 10 in the lower part of clamp plate, when making last cylinder 6 push down motor flange end cover, make flange end cover and flange base 4 be connected inseparabler and firm to improve the accuracy of testing result.
The frame 1 comprises an upper transverse frame 11, a middle transverse frame 12 and a lower transverse frame 13, wherein a lower air cylinder 2 is fixed on the lower transverse frame 13, an upper air cylinder 6 is fixed on the upper transverse frame 11, a flange base 4 is fixed on the middle transverse frame 12, and the middle transverse frame 12 is fixed on the upper transverse frame 11 through more than 2 upright posts 121. Still be equipped with the guide rail 14 of vertical direction on the frame 1, the outside of water tank 3 is connected with slider 15, slider 15 and guide rail 14 swing joint. Through the guide rail 14 that sets up vertical direction on frame 1, slider 15 through 3 external connection of water tank cooperates with guide rail 14, and when lower cylinder 2 drove 3 vertical direction of water tank and removes, slider 15 removed along vertical guide rail 14 direction, played spacing and supplementary fixed effect. The flange base further comprises a compressed air station 7 and an air pipe 8, wherein one end of the air pipe 8 is connected to the air outlet end of the compressed air station 7, and the other end of the air pipe 8 is connected to the starting end of the ventilation hole 41 of the flange base 4. Air is compressed through a compressed air station 7 and is conveyed into a containing cavity formed between the flange base 4 and the end cover body through an air pipe 8. The air pipe 8 is provided with a pressure gauge and an air pressure valve 81. The pressure gauge connected to the middle of the air pipe 8 displays the pressure of air input into the flange base 4 and is controlled by the air pressure valve 81. The upper edge of the flange base 4 is provided with a sealing ring. The air is prevented from leaking from the gap between the flange end cover and the flange base 4 in the detection process to influence the accuracy of the detection structure. The sealing ring is an annular rubber pad 10 sheet. The pneumatic control system further comprises a PLC, and the PLC is electrically connected with the upper air cylinder 6, the lower air cylinder 2 and the air pressure valve 81 respectively. According to the set program, the upper air cylinder 6, the lower air cylinder 2 and the air pressure valve 81 are controlled through the PLC, the automation of air tightness detection of the flange end cover of the motor is realized, and the detection efficiency is further improved.
In conclusion, in the structure of the motor flange end cover air tightness detection device provided by the invention, the air tightness of the motor flange end cover can be rapidly and visually detected through a simple mechanical structure, the air tightness of different types of motor flange end covers can be tested through replacing the flange positioning ring, and the connection between the flange end cover and the flange base is tighter and more stable when the upper air cylinder presses the motor flange end cover down through arranging the corrugated rubber pad at the lower part of the pressing plate, so that the accuracy of a detection result is improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. The device for detecting the air tightness of the flange end cover of the motor is characterized by comprising a frame, a lower cylinder, a water tank, a flange base, a flange positioning ring and an upper cylinder;
the lower cylinder is vertically and upwards fixed at the lower part of the rack, the water tank is fixed at the upper end of a piston rod of the lower cylinder, the flange base is fixed on the rack and positioned right above the water tank, and the flange base is immersed in the water tank under the condition that the lower cylinder drives the water tank to rise;
the flange base is provided with a vent hole, the initial end of the vent hole is positioned at the side part of the flange base, the tail end of the vent hole is positioned at the upper part of the flange base, and the vent hole is in ventilation connection with an air source through the initial end of the vent hole;
the flange positioning ring is fixed on the upper part of the flange base and is used for positioning and connecting with a motor flange end cover body to be detected;
the upper air cylinder is vertically and downwards fixed on the upper portion of the rack, a pressing plate is arranged at the lower end of a piston rod of the upper air cylinder and located right above the flange base, and a corrugated rubber pad is arranged on the lower portion of the pressing plate.
2. The device for detecting the airtightness of the motor flange end cover according to claim 1, wherein the frame includes an upper cross frame, a middle cross frame and a lower cross frame, the lower cylinder is fixed to the lower cross frame, the upper cylinder is fixed to the upper cross frame, the flange base is fixed to the middle cross frame, and the middle cross frame is fixed to the upper cross frame through more than 2 vertical columns.
3. The device for detecting the airtightness of the motor flange end cover according to claim 1, wherein a guide rail in the vertical direction is further arranged on the frame, a slide block is connected to the outside of the water tank, and the slide block is movably connected with the guide rail.
4. The device for detecting the airtightness of the flange end cover of the motor according to claim 1, further comprising a compressed air station and an air pipe, wherein one end of the air pipe is connected to an air outlet end of the compressed air station, and the other end of the air pipe is connected to a starting end of a ventilation duct of the flange base.
5. The device for detecting the airtightness of the motor flange end cover according to claim 4, wherein the air pipe is provided with a pressure gauge and a pneumatic valve.
6. The device for detecting the airtightness of the flange end cover of the motor according to claim 1, wherein a sealing ring is provided on an upper edge of the flange base.
7. The device for detecting the airtightness of the flange end cover of the motor according to claim 6, wherein the seal ring is an annular rubber gasket.
8. The device for detecting the airtightness of the motor flange end cover according to claim 1, further comprising a PLC electrically connected to the upper cylinder, the lower cylinder, and the pressure valve, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911301338.XA CN110887614A (en) | 2019-12-17 | 2019-12-17 | Motor flange end cover air tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911301338.XA CN110887614A (en) | 2019-12-17 | 2019-12-17 | Motor flange end cover air tightness detection device |
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| CN110887614A true CN110887614A (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911301338.XA Pending CN110887614A (en) | 2019-12-17 | 2019-12-17 | Motor flange end cover air tightness detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638014A (en) * | 2020-06-29 | 2020-09-08 | 温州市欣伟机械部件有限公司 | Flange sealing performance testing device |
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| CN205785713U (en) * | 2016-06-01 | 2016-12-07 | 江西双威电机有限公司 | A kind of air-tightness detection device of electric motor end cap |
| CN207636252U (en) * | 2017-11-10 | 2018-07-20 | 天津市盟利电机制造有限公司 | A kind of electric motor end cap air-tightness detection device |
| KR101955223B1 (en) * | 2018-07-27 | 2019-03-08 | 신세계건설(주) | Automatic filling system and method for storage vessel |
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2019
- 2019-12-17 CN CN201911301338.XA patent/CN110887614A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033318A (en) * | 2012-12-15 | 2013-04-10 | 淄博永华滤清器制造有限公司 | Filter leak-testing machine |
| CN203502175U (en) * | 2013-08-21 | 2014-03-26 | 天津众达精密机械有限公司 | Device for testing gas tightness of oil sump |
| CN105953984A (en) * | 2016-05-23 | 2016-09-21 | 湖州恒久机械有限公司 | Engine end cover water-stop detection device |
| CN205785713U (en) * | 2016-06-01 | 2016-12-07 | 江西双威电机有限公司 | A kind of air-tightness detection device of electric motor end cap |
| CN207636252U (en) * | 2017-11-10 | 2018-07-20 | 天津市盟利电机制造有限公司 | A kind of electric motor end cap air-tightness detection device |
| KR101955223B1 (en) * | 2018-07-27 | 2019-03-08 | 신세계건설(주) | Automatic filling system and method for storage vessel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638014A (en) * | 2020-06-29 | 2020-09-08 | 温州市欣伟机械部件有限公司 | Flange sealing performance testing device |
| CN111638014B (en) * | 2020-06-29 | 2022-03-18 | 温州市欣伟机械部件有限公司 | Flange sealing performance testing device |
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Application publication date: 20200317 |
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