CN111426465A - Valve pressure test device - Google Patents
Valve pressure test device Download PDFInfo
- Publication number
- CN111426465A CN111426465A CN202010382847.6A CN202010382847A CN111426465A CN 111426465 A CN111426465 A CN 111426465A CN 202010382847 A CN202010382847 A CN 202010382847A CN 111426465 A CN111426465 A CN 111426465A
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- connecting pipe
- nut
- pressure test
- valve pressure
- test apparatus
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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
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a valve pressure test device which is simple in structure, low in production cost, convenient to install and capable of adapting to valves of various sizes in the largest range.
Description
Technical Field
The invention relates to the technical field of valve testing equipment, in particular to a valve pressure testing device.
Background
The valve pressure test device is provided with a valve fixing device, a connecting end sealing device, a test medium filling device and a pressurizing device, is used for a testing machine of the valve pressure test, is convenient for inserting the two ends of the valve and sealing the two ends of the valve to be tested for testing, and clamps the flange plates on the two sides of the valve through the clamping oil cylinder and the clamping plate, so that the valve is fixed.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides the valve pressure test device which is simple in structure, low in production cost, convenient to install and capable of being adapted to valves of various sizes in the largest range.
In order to achieve the technical problem, the valve pressure test device comprises a base, wherein a first clamping workpiece and a second clamping workpiece for clamping an external valve to be tested are movably arranged on the base, the first clamping workpiece and the second clamping workpiece respectively comprise a conical part capable of being inserted into the external valve to be tested, and a first fluid channel for allowing a fluid to pass through is formed in the conical part.
The further improvement is that: the outer end side of the conical part is provided with a sealing air bag, and the conical part is provided with a first ventilation channel communicated with the sealing air bag.
The further improvement is that: the conical part of the first clamping workpiece is fixedly arranged on the base, and the conical part of the second clamping workpiece can be arranged on the base in a left-right sliding mode.
The further improvement is that: the second clamping workpiece further comprises a first connecting pipe and a second connecting pipe, the first connecting pipe is arranged on the base, the second connecting pipe can be arranged on the first connecting pipe in a sliding mode in a penetrating mode, the conical portion is arranged on the second connecting pipe, the first connecting pipe and the second connecting pipe are communicated with the first fluid channel, and a sliding driving mechanism for driving the first connecting pipe and the second connecting pipe to slide relatively is arranged between the first connecting pipe and the second connecting pipe.
The further improvement is that: the sliding driving mechanism comprises a rotating ring, the rotating ring is rotatably arranged on the first connecting pipe through a bearing, the rotating ring is sleeved on the second connecting pipe, first threads are formed in the inner end face of the rotating ring, second threads matched with the first threads are formed in the outer end face of the second connecting pipe, a limiting structure for preventing relative rotation is arranged between the first connecting pipe and the second connecting pipe, and a rotation driving device for driving the rotating ring to rotate is arranged on the first connecting pipe.
The further improvement is that: the first clamping workpiece further comprises a third connecting pipe, the third connecting pipe is fixedly arranged on the base, the conical portion is arranged on the third connecting pipe, the third connecting pipe is communicated with the first fluid channel, and an inserting rod used for inserting a flange threaded hole of an external valve to be tested is arranged on the third connecting pipe.
The further improvement is that: the third connecting pipe is provided with a first waist hole for the insertion rod to pass through, the insertion rod can slide up and down in the first waist hole, and a positioning device is arranged between the insertion rod and the third connecting pipe.
The further improvement is that: the positioning device comprises a first nut and a second nut, the first nut and the second nut are sleeved on the inserted bar, external threads matched with the first nut and the second nut are arranged on the inserted bar, the first nut and the second nut are respectively arranged on two sides of the third connecting pipe, the first nut can be abutted to the third connecting pipe, a spring is sleeved on the inserted bar, and the spring is arranged between the second nut and the third connecting pipe.
The further improvement is that: the third connecting pipe is located in the first waist hole and can be provided with a sliding block in an up-and-down sliding mode, the third connecting pipe is located in the first waist hole, a plurality of sliding grooves are formed in the inner wall of the first waist hole, the sliding grooves are formed in the up-and-down direction, a plurality of protrusions are fixedly arranged on the sliding block and can be arranged in the sliding grooves in a sliding mode, and the inserting rod can be arranged in the sliding blocks in a left-and-right sliding mode.
The further improvement is that: the rotation driving device is a brushless motor.
By adopting the technical scheme, the invention has the beneficial effects that: 1. the first clamping workpiece and the second clamping workpiece respectively comprise a conical part which can be inserted into an external valve to be tested, and the conical parts are inserted into the external valve to be tested, so that the pipe diameters of different calibers can be adapted; 2. the brushless motor drives the third connecting pipe to stretch, so that the pressure between the conical part and the external valve to be tested is constant, and the tested data is more accurate; 3. by arranging the inserting rod, an operator can better preset the angle of the external valve to be tested, and the operation and the control are convenient; 4. the outer end side of the conical part is provided with a sealing air bag, so that the sealing performance between the conical part and an external valve to be tested is further improved.
Drawings
Fig. 1 is a schematic structural diagram of a valve pressure testing apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a first workpiece clamping configuration in accordance with the present invention.
FIG. 3 is a schematic diagram of a second workpiece clamping configuration in accordance with the present invention.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and specific embodiments.
Example (b): referring to fig. 1 to 3, a valve pressure testing apparatus according to an embodiment of the present invention is disclosed, which includes a base 1, a main control system (not shown in the drawings) is disposed on the base 1, two first clamping workpieces 3 are disposed on the base 1, a working plate 14 is disposed on the base 1 opposite to the first clamping workpieces 3, and two second clamping workpieces 2 are disposed on the working plate 14 corresponding to the two first clamping workpieces 3.
The second clamping workpiece 2 comprises a first connecting pipe 41 and a second connecting pipe 42, the first connecting pipe 41 is arranged on the working disc 14, the second connecting pipe 42 is slidably inserted into the first connecting pipe 41, a sealing ring is sleeved on the second connecting pipe 42 to keep the sealing performance between the first connecting pipe 41 and the second connecting pipe 42, a rotating ring 43 is concentrically and rotatably arranged on the side surface of the first connecting pipe 41 through a bearing 431, the first connecting pipe 41 is arranged on the rotating ring 43 in a penetrating manner, a first thread is arranged on the inner end surface of the rotating ring 43, a second thread matched with the first thread is arranged on the outer end surface of the second connecting pipe 42, two guide rods (not shown in the figure) are fixedly arranged on the second connecting pipe 42, two guide holes are arranged on the first connecting pipe 41 for the guide rods to pass through and act on the matching between the guide rods and the guide holes, the relative rotation of the first connection pipe 41 and the second connection pipe 42 is prevented.
A brushless motor 44 is fixedly arranged on the first connecting pipe 41, a housing of the brushless motor 44 is fixedly arranged on the first connecting pipe 41, an outer gear ring is concentrically arranged on the outer end surface of the rotating ring 43, a gear 441 is fixedly arranged on a rotating shaft of the brushless motor 44, and the gear 441 is meshed with the outer gear ring. When the brushless motor 44 rotates, the rotating ring 43 is driven to rotate, and the screw thread connection between the rotating ring 43 and the second connecting pipe 42 is acted, so that the second connecting pipe 42 is driven to extend or retract.
The second connecting pipe 42 is concentrically provided with a conical part, the outer diameter of the conical part gradually decreases from inside to outside, the conical part is provided with a first fluid channel 211 for fluid to pass through, and the first fluid channel 211 is communicated with the first connecting pipe 41 and the second connecting pipe 42.
When the brushless motor 44 drives the second connecting pipe 42 to extend out, the conical part is inserted into the fluid channel of the external valve to be tested, the first fluid channel 211 is communicated with the fluid channel of the external valve to be tested, the conical part is acted on, the conical part can be suitable for the valves to be tested with various apertures, the characteristic that the brushless motor 44 stops working when reaching a specific torque is acted on, the consistency of the pressure of the conical part when being inserted into the external valve to be tested can be ensured, and the consistency of the data during testing at each time can be ensured. And acts on the rotating ring 43, the gear 441 and the second connecting pipe 42 to form a worm gear structure, after the brushless motor 44 stops working, the extension amount of the second connecting pipe 42 can be kept, and the pressure between the second connecting pipe and an external valve to be tested is kept.
In order to further increase the sealing performance between the conical portion and the external valve to be tested, a sealing airbag 23 is arranged on the outer end side of the conical portion, a first ventilation channel 212 is formed in the conical portion and communicated with the sealing airbag 23, an air pump (not shown in the figure) is arranged on the base 1, when the brushless motor 44 stops working, a signal is sent to the main control system, the main control system controls the air pump to inflate in the sealing airbag 23 through the first ventilation channel 212, the sealing airbag 23 is made of an elastic material, and the sealing airbag 23 expands and abuts against the inner wall of the fluid channel of the external valve to be tested. And when the test is finished, releasing the pressure of the air in the air bag.
The first clamping workpiece 3 comprises a third connecting pipe 31, the third connecting pipe 31 is fixedly arranged on the base 1, the outer end part of the third connecting pipe 31 is also provided with a conical part, the third connecting pipe 31 is communicated with the first fluid channel 211 of the conical part, and the third connecting pipe 31 is provided with an inserting rod 51 which is used for inserting into a flange threaded hole of an external valve to be tested. Seted up first waist hole confession on the third connecting pipe 31 the inserted bar 51 passes, the inserted bar 51 can slide from top to bottom set up in first waist is downthehole, the both sides that the inserted bar 51 is located third connecting pipe 31 are overlapped respectively and are equipped with first nut 52, second nut 54, set up the external screw thread with first nut 52, second nut 54 matched with on the inserted bar 51, first nut 52 can with third connecting pipe 31 offsets, the cover is equipped with spring 531 on the inserted bar 51, it is equipped with annular piece 53 still to overlap on the inserted bar 51, spring 531 sets up between annular piece 53 and second nut 54, acts on the elasticity of spring 531, and annular piece 53 and first nut 52 centre gripping third connecting pipe 31 can play the positioning action of inserted bar 51 on third connecting pipe 31.
In order to avoid the deviation of the insertion rod 51, a sliding block 55 is slidably disposed in the first waist hole of the third connecting pipe 31, a plurality of sliding grooves 551 are formed in the inner wall of the first waist hole of the third connecting pipe 31, the sliding grooves 551 are formed along the vertical direction, a plurality of protrusions (not shown) are fixedly disposed on the sliding block 55, the protrusions are slidably disposed in the sliding grooves 551, and the insertion rod 51 is slidably disposed through the sliding block 55 in the left-right direction.
In order to achieve better sealing effect, the conical part comprises a hard inner layer 21, the hard inner layer 21 can be made of steel, aluminum and the like, and a sealing rubber layer 22 is wrapped outside the hard inner layer 21 and acts on the sealing rubber layer 22 to be in contact with an external valve to be tested, so that the sealing performance of the sealing rubber layer 22 and the external valve to be tested is good.
In order to further increase the adaptability of the machine station to the external valves to be tested, L-shaped clamping grooves 421 are formed in the second connecting pipe 42 and the third connecting pipe 31, L-shaped clamping portions (not shown in the figure) capable of being clamped into the L-shaped clamping grooves 421 are fixedly arranged on the tapered portions, and in-out channels for the L-shaped clamping portions to go in and out of the L-shaped clamping grooves are formed in the second connecting pipe 42 and the third connecting pipe 31.
When the valve pressure test device is used for testing an external valve to be tested, the position of the insertion rod 51 on the third connecting pipe 31 is adjusted firstly, and the elastic positioning is acted on, so that the adjustment is very convenient, the threaded hole in the flange of the external valve to be tested is aligned to the insertion rod 51 and is sleeved in, a fluid channel of the external valve to be tested is aligned to the conical part on the third connecting pipe 31 and is pushed in, the action is acted on the insertion rod 51 and the conical part, the external valve to be tested can be hung on the conical part and the insertion rod 51, the brushless motor 44 is driven, the second connecting pipe 42 is extended out, and the conical part on the second connecting pipe 42 is inserted into the fluid channel on the other side of the external valve to be. When a certain pressure is reached and the resistance on the brushless motor 44 reaches a certain value, the brushless motor 44 stops working and sends a signal to the main control system, the main control system sends a signal to the air pump, and the air pump works to inflate the sealing air bag 23, so that the sealing effect is further achieved.
The arrangement of the inserting rod 51 can be used for adjusting the orientation of the control structure of the external valve to be tested in advance, so that the operation of an operator on the external valve to be tested is facilitated.
Modifications and variations of the present invention are within the scope of the claims and are not limited by the disclosure of the embodiments.
Claims (10)
1. Valve pressure test device, including the base, the activity is provided with first centre gripping work piece and the second centre gripping work piece that is used for the outside valve that awaits measuring of centre gripping on the base, its characterized in that: the first clamping workpiece and the second clamping workpiece respectively comprise a conical part which can be inserted into an external valve to be tested, and a first fluid channel for fluid to pass through is formed in the conical part.
2. The valve pressure test apparatus of claim 1, wherein: the outer end side of the conical part is provided with a sealing air bag, and the conical part is provided with a first ventilation channel communicated with the sealing air bag.
3. The valve pressure test apparatus of claim 1, wherein: the conical part of the first clamping workpiece is fixedly arranged on the base, and the conical part of the second clamping workpiece can be arranged on the base in a left-right sliding mode.
4. The valve pressure test apparatus of claim 2, wherein: the second clamping workpiece further comprises a first connecting pipe and a second connecting pipe, the first connecting pipe is arranged on the base, the second connecting pipe can be arranged on the first connecting pipe in a sliding mode in a penetrating mode, the conical portion is arranged on the second connecting pipe, the first connecting pipe and the second connecting pipe are communicated with the first fluid channel, and a sliding driving mechanism for driving the first connecting pipe and the second connecting pipe to slide relatively is arranged between the first connecting pipe and the second connecting pipe.
5. The valve pressure test apparatus of claim 4, wherein: the sliding driving mechanism comprises a rotating ring, the rotating ring is rotatably arranged on the first connecting pipe through a bearing, the rotating ring is sleeved on the second connecting pipe, first threads are formed in the inner end face of the rotating ring, second threads matched with the first threads are formed in the outer end face of the second connecting pipe, a limiting structure for preventing relative rotation is arranged between the first connecting pipe and the second connecting pipe, and a rotation driving device for driving the rotating ring to rotate is arranged on the first connecting pipe.
6. The valve pressure test apparatus of claim 3, wherein: the first clamping workpiece further comprises a third connecting pipe, the third connecting pipe is fixedly arranged on the base, the conical portion is arranged on the third connecting pipe, the third connecting pipe is communicated with the first fluid channel, and an inserting rod used for inserting a flange threaded hole of an external valve to be tested is arranged on the third connecting pipe.
7. The valve pressure test apparatus of claim 6, wherein: the third connecting pipe is provided with a first waist hole for the insertion rod to pass through, the insertion rod can slide up and down in the first waist hole, and a positioning device is arranged between the insertion rod and the third connecting pipe.
8. The valve pressure test apparatus of claim 7, wherein: the positioning device comprises a first nut and a second nut, the first nut and the second nut are sleeved on the inserted bar, external threads matched with the first nut and the second nut are arranged on the inserted bar, the first nut and the second nut are respectively arranged on two sides of the third connecting pipe, the first nut can be abutted to the third connecting pipe, a spring is sleeved on the inserted bar, and the spring is arranged between the second nut and the third connecting pipe.
9. The valve pressure test apparatus of claim 7, wherein: the third connecting pipe is located in the first waist hole and can be provided with a sliding block in an up-and-down sliding mode, the third connecting pipe is located in the first waist hole, a plurality of sliding grooves are formed in the inner wall of the first waist hole, the sliding grooves are formed in the up-and-down direction, a plurality of protrusions are fixedly arranged on the sliding block and can be arranged in the sliding grooves in a sliding mode, and the inserting rod can be arranged in the sliding blocks in a left-and-right sliding mode.
10. The valve pressure test apparatus of claim 5, wherein: the rotation driving device is a brushless motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010382847.6A CN111426465B (en) | 2020-05-08 | 2020-05-08 | Valve pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010382847.6A CN111426465B (en) | 2020-05-08 | 2020-05-08 | Valve pressure test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111426465A true CN111426465A (en) | 2020-07-17 |
| CN111426465B CN111426465B (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010382847.6A Active CN111426465B (en) | 2020-05-08 | 2020-05-08 | Valve pressure test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111426465B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659570A (en) * | 2022-03-23 | 2022-06-24 | 合肥通用机械研究院有限公司 | Valve flow test testing device |
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|---|---|---|---|---|
| CN202101829U (en) * | 2011-05-06 | 2012-01-04 | 苏州元华气体设备有限公司 | Valve airtight detection apparatus |
| CN203376132U (en) * | 2013-08-06 | 2014-01-01 | 宁波东生建材有限公司 | Novel valve gas tightness detection apparatus |
| CN104062116A (en) * | 2014-07-06 | 2014-09-24 | 中国石油大学(华东) | Method and system for testing stress on valve inside anti-blocking jet flow tube cleaner |
| CN108279096A (en) * | 2018-03-30 | 2018-07-13 | 重庆市骞焰机械有限责任公司 | A kind of device for detecting sealability of valve |
| CN108414165A (en) * | 2018-03-23 | 2018-08-17 | 温州大学 | A kind of valve measurement pressure testing device |
| CN108844732A (en) * | 2018-08-22 | 2018-11-20 | 邹凯 | A kind of detection device of polyethylene ball valve |
| CN208621258U (en) * | 2018-07-18 | 2019-03-19 | 天津鸿瑞橡胶有限公司 | A kind of rubber valve leakage detection apparatus |
| CN209117324U (en) * | 2018-12-02 | 2019-07-16 | 梁荣 | A kind of verifying attachment of in-line relief valve |
| CN210141973U (en) * | 2019-05-24 | 2020-03-13 | 常静 | Clamping device for valve pressure test |
| CN210269074U (en) * | 2019-09-10 | 2020-04-07 | 铜陵碧卓流体科技有限责任公司 | Sealing detection device for valve production |
-
2020
- 2020-05-08 CN CN202010382847.6A patent/CN111426465B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202101829U (en) * | 2011-05-06 | 2012-01-04 | 苏州元华气体设备有限公司 | Valve airtight detection apparatus |
| CN203376132U (en) * | 2013-08-06 | 2014-01-01 | 宁波东生建材有限公司 | Novel valve gas tightness detection apparatus |
| CN104062116A (en) * | 2014-07-06 | 2014-09-24 | 中国石油大学(华东) | Method and system for testing stress on valve inside anti-blocking jet flow tube cleaner |
| CN108414165A (en) * | 2018-03-23 | 2018-08-17 | 温州大学 | A kind of valve measurement pressure testing device |
| CN108279096A (en) * | 2018-03-30 | 2018-07-13 | 重庆市骞焰机械有限责任公司 | A kind of device for detecting sealability of valve |
| CN208621258U (en) * | 2018-07-18 | 2019-03-19 | 天津鸿瑞橡胶有限公司 | A kind of rubber valve leakage detection apparatus |
| CN108844732A (en) * | 2018-08-22 | 2018-11-20 | 邹凯 | A kind of detection device of polyethylene ball valve |
| CN209117324U (en) * | 2018-12-02 | 2019-07-16 | 梁荣 | A kind of verifying attachment of in-line relief valve |
| CN210141973U (en) * | 2019-05-24 | 2020-03-13 | 常静 | Clamping device for valve pressure test |
| CN210269074U (en) * | 2019-09-10 | 2020-04-07 | 铜陵碧卓流体科技有限责任公司 | Sealing detection device for valve production |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659570A (en) * | 2022-03-23 | 2022-06-24 | 合肥通用机械研究院有限公司 | Valve flow test testing device |
| CN114659570B (en) * | 2022-03-23 | 2025-02-07 | 合肥通用机械研究院有限公司 | Valve flow test device |
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| Publication number | Publication date |
|---|---|
| CN111426465B (en) | 2021-11-30 |
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