CN209311028U - A kind of pollution-free air-tightness rapid measurement device of RV retarder - Google Patents
A kind of pollution-free air-tightness rapid measurement device of RV retarder Download PDFInfo
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- CN209311028U CN209311028U CN201822166368.1U CN201822166368U CN209311028U CN 209311028 U CN209311028 U CN 209311028U CN 201822166368 U CN201822166368 U CN 201822166368U CN 209311028 U CN209311028 U CN 209311028U
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- solenoid directional
- directional control
- control valve
- speed reducer
- top cover
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Abstract
The utility model discloses a kind of pollution-free air-tightness fast automatic measurement devices of RV retarder, belong to testing equipment field.The utility model is close to the two sides of RV speed reducer ontology by top cover labyrinth and fixing seal bottom plate, constitute closed seal chamber, in the case where can fastening in no screw and be sealed without end face sealant, the offline quick detection work that speed reducer air-tightness is completed to RV speed reducer will not cause speed reducer to damage and pollute.
Description
Technical field
The utility model belongs to testing equipment field, and in particular to a kind of pollution-free air-tightness rapid survey dress of RV retarder
It sets.
Background technique
RV retarder has the series of advantages such as bearing capacity height, high, the high-efficient, stable drive of precision.It is widely applied
In fields such as industrial robot, Automation of Welding, aerospaces, the quality of leakproofness is directly influenced and is closed inside speed reducer
The lubrication of key components, and then influence speed reducer machine life.
Decelerator shell is mainly fixed with outer base using screw, is exported by existing RV retarder hermeticity experiment
Output end face and output end cap are fixed using screw after smearing sealant in end face, carry out air-tightness survey after forming seal cavity
Examination.After existing test mode has the disadvantage that sealant is smeared in (1), end face, speed reducer ontology can be polluted, after
Phase is difficult to clean up；(2), it is sealed installation using screw, can causes to damage to speed reducer ontology, the later period can not repair；
(3), test assembling process is complicated, and human cost is high；(4), be based on above 3 points, can not to speed reducer leakproofness carry out full inspection or
Bulk detection.
Summary of the invention
Utility model aims to solve defects existing for RV retarder air-leakage test in the prior art, and provide
A kind of pollution-free air-tightness rapid measurement device of RV retarder.
Specific technical solution used by the utility model is as follows:
RV retarder is pollution-free air-tightness rapid measurement device comprising pneumatic cylinder, rack, upper press cover, top cover labyrinth, branch
Support bottom plate, seal base, snorkel and three groups of infrared electro opposite type sensors；The pneumatic cylinder is fixed in rack and it is lived
Stopper rod end is protruded into rack inner cavity, and pneumatic cylinder, which is equipped with, unclamps quick-release connector and compression quick-release connector；The inner cavity of the rack
Bottom is fixed with support baseboard, is fixed with seal base on support baseboard；It is close that RV speed reducer ontology to be tested lies against fixation
On back cover plate；The piston rod of the pneumatic cylinder is fixed with upper press cover, is fixed with top cover labyrinth below upper press cover, top cover labyrinth with
The flexible of pneumatic cylinder piston rod moves up and down, and the flexible stroke of pneumatic cylinder piston rod should meet can make top cover labyrinth and fixation
Seal base is close to the two sides of RV speed reducer ontology, constitutes closed seal chamber；Be laid on the rack side three groups it is red
Outer photoelectricity opposite type sensor, and the setting height of three groups of infrared electro opposite type sensors is different, is located at the upper of top cover labyrinth
At the placing height of limit height, the lower limit height of top cover labyrinth and RV speed reducer ontology；Described snorkel one end passes through
The seal base connection seal chamber, the other end are equipped with test loop quick-release connector；The test loop quick-release connector, pine
Open quick-release connector, compression quick-release connector accesses in external control gas circuit.
Further, it is changed in the external control gas circuit including the first pressure reducing valve, the first solenoid directional control valve, the second electromagnetism
To valve, pressure switch, third solenoid directional control valve, the first one-way throttle valve, the second one-way throttle valve, the second pressure reducing valve, the 4th electricity
Magnetic reversal valve and pressure sensor；Gas source is sequentially connected air accumulator and the first pressure reducing valve by pipeline, and then pipeline is divided into first
Branch and second branch；Wherein the first branch by after the first solenoid directional control valve simultaneously with the second solenoid directional control valve, pressure
The import of power switch and third solenoid directional control valve is connected, and the one outlet of third solenoid directional control valve passes through the first one-way throttle valve
The compression quick-release connector is connected afterwards, another outlet is by connecting the fast changing-over of release after the second one-way throttle valve
Head；After the second branch passes sequentially through the second pressure reducing valve and the 4th solenoid directional control valve, at the same with pressure sensor and institute
The test loop quick-release connector stated is connected.
Further, the first pressure reducing valve front end is additionally provided with filter, and the first pressure reducing valve rear end is equipped with pressure gauge.
Further, the upper limit height of the top cover labyrinth is that top cover labyrinth disengaging RV speed reducer bodies top is hanging
When top cover labyrinth height, the lower limit height of the top cover labyrinth is that top cover labyrinth is pressed in RV speed reducer body upper surface
Constitute the top cover labyrinth height when seal chamber；The placing height of the RV speed reducer ontology is that RV speed reducer ontology is laid flat
When on fixing seal bottom plate in the altitude range of RV speed reducer ontology any point height.
Further, first solenoid directional control valve uses two-position two-way electromagnetic directional valve, and the second solenoid directional control valve is adopted
With two-position two-way electromagnetic directional valve, third solenoid directional control valve uses two-position five-way solenoid directional control valve, and the 4th solenoid directional control valve uses
3-position-3-way solenoid directional control valve, pressure switch use double pressure switch.
Further, the top cover labyrinth and fixing seal bottom plate pass through screw respectively and are fixed on upper press cover and support bottom
On plate.
Further, the frame shape that the rack is lacked in two opposite sides.
Further, the pneumatic cylinder is double-acting cylinder.
The utility model in terms of existing technologies, can no screw fasten and without end face sealant sealing the case where
Under, the offline quick detection work of speed reducer air-tightness is completed to RV speed reducer, and speed reducer will not be caused to damage and polluted.
Detailed description of the invention
Fig. 1 is the front view of the pollution-free air-tightness rapid measurement device of RV retarder；
Fig. 2 is the axonometric drawing of the pollution-free air-tightness rapid measurement device of RV retarder；
Fig. 3 is a kind of implementation schematic diagram of external control gas circuit in the utility model.
Appended drawing reference in figure are as follows: pneumatic cylinder 1, rack 2, upper press cover 3, top cover labyrinth 4, test loop quick-release connector 5, support
Bottom plate 6, RV speed reducer ontology 9, unclamps quick-release connector 10, compresses quick change at 7, three groups of infrared electro opposite type sensors 8 of seal base
Connector 11, gas source treatment loop A, automatic impaction control loop B, air tightness test circuit C, the first pressure reducing valve 20, the first electromagnetism
Reversal valve 21, the second solenoid directional control valve 22, pressure switch 23, third solenoid directional control valve 24, the first one-way throttle valve 25, second are single
To throttle valve 26, the second pressure reducing valve 27, the 4th solenoid directional control valve 28, pressure sensor 29.
Specific embodiment
The utility model is further elaborated and is illustrated with reference to the accompanying drawings and detailed description.In the utility model
The technical characteristic of each embodiment can carry out the corresponding combination under the premise of not conflicting with each other.
As shown in Figure 1, for the pollution-free air-tightness rapid survey of RV retarder in one preferred embodiment of the utility model
Device, primary structure include pneumatic cylinder 1, rack 2, upper press cover 3, top cover labyrinth 4, support baseboard 6, seal base 7, snorkel
With three groups of infrared electro opposite type sensors 8.
In the present embodiment, for rack 2 in the frame shape of two opposite side missings, two sides have the grip part for facilitating carrying
Part.Pneumatic cylinder 1 is perpendicularly fixed in rack 2 and its piston rod end is protruded into 2 inner cavity of rack, and pneumatic cylinder 1 uses double acting gas
Cylinder is alternately supplied from the two sides of piston, wherein piston rod moves down when cavity air inlet above piston, from piston lower section cavity air inlet
When piston rod move up.It is set on pneumatic cylinder 1 there are two quick-release connector, respectively release quick-release connector 10 and compression quick-release connector 11,
It unclamps quick-release connector 10 and cavity below piston is connected by pipeline, compress quick-release connector 11 by pipeline and connect chamber above piston
Body.The intracavity bottom of rack 2 is fixed with support baseboard 6, is fixed with horizontal seal base 7 on support baseboard 6 by screw, close
The sealing elements such as sealing ring can be set in 7 upper surface of back cover plate, and RV speed reducer ontology 9 to be tested lies against fixing seal bottom plate 7
On, when RV speed reducer ontology 9 is pressurized, its bottom and sealing element are closely sealed airtight.The piston rod of pneumatic cylinder 1 is fixed with upper press cover
3, top cover labyrinth 4 is fixed with by screw below upper press cover 3, top cover labyrinth 4 with 1 piston rod of pneumatic cylinder it is flexible on move down
It is dynamic, and the flexible stroke of 1 piston rod of pneumatic cylinder should meet the upper surface that top cover labyrinth 4 can be made to be close to RV speed reducer ontology 9.On
The bottom of sealing cover 4 also is provided with sealing element, and top cover labyrinth 4 and fixing seal bottom plate 7 are close to the two sides of RV speed reducer ontology 9, structure
At closed seal chamber, for carrying out pressure maintaining air tightness test.Three groups of infrared electro opposite type sensors are laid on 2 side of rack
8, and the setting height of three groups of infrared electro opposite type sensors 8 is different, it is located at the upper limit height, upper close of top cover labyrinth 4
At the lower limit height of capping 4 and the placing height of RV speed reducer ontology 9.In general, the upper limit height of top cover labyrinth 4 is
4 height of top cover labyrinth when top cover labyrinth 4 is detached from 9 top of RV speed reducer ontology vacantly, hanging distance can be adjusted as needed
It is whole, it is subject to and facilitates pick-and-place RV speed reducer ontology 9.The lower limit height of top cover labyrinth 4 is that top cover labyrinth 4 is pressed in RV speed reducer
9 upper surface of ontology constitutes 4 height of top cover labyrinth when seal chamber.The placing height of RV speed reducer ontology 9 is RV speed reducer ontology 9
The height for lying against RV speed reducer ontology 9 when on fixing seal bottom plate 7, since RV speed reducer ontology 9 itself has height,
Take the height at any point in 9 altitude range of RV speed reducer ontology itself.Infrared electro opposite type sensor 8 is transmitting terminal
The correlation type photoelectric sensor for issuing infrared light, by transmitting terminal and receiving end, when detectable substance in place after, stop optical path, receiving end
One signal is exported with regard to movement.Three groups of infrared electro opposite type sensors 8 can incude the position of different components, externally output letter
Number, in order to automatically control.Snorkel one end passes through communication seals chamber after support baseboard 6, seal base 7, and the other end, which is equipped with, to be surveyed
Try circuit quick-release connector 5.Test loop quick-release connector 5, release quick-release connector 10, compression quick-release connector 11 access external control
In gas circuit.
The specific structure of outside control gas circuit, which can according to need, to be adjusted, and is subject to and be can be realized air tightness test.
In a preferred embodiment of the utility model, as shown in figure 3, including the first pressure reducing valve 20, first in external control gas circuit
Solenoid directional control valve 21, the second solenoid directional control valve 22, pressure switch 23, third solenoid directional control valve 24, the first one-way throttle valve 25,
Two one-way throttle valves 26, the second pressure reducing valve 27, the 4th solenoid directional control valve 28 and pressure sensor 29.Wherein, the first electromagnetic switch
Valve 21 uses two-position two-way electromagnetic directional valve, and the second solenoid directional control valve 22 uses two-position two-way electromagnetic directional valve, and third electromagnetism changes
Two-position five-way solenoid directional control valve is used to valve 24, the 4th solenoid directional control valve 28 uses 3-position-3-way solenoid directional control valve, pressure switch
23 use double pressure switch.
Outside control gas circuit can be divided into gas source treatment loop A, automatic impaction control loop B, air tightness test by function
Circuit C three parts.
Gas source treatment loop A is equipped with the first pressure reducing valve 20, compress with it setting of circuit pressure.Automatic impaction control
Circuit B processed is equipped with the first solenoid directional control valve 21, the second solenoid directional control valve 22, utilizes the pressure of this group of reversal valve control pressing system
Tightly-pressure maintaining-release movement.Automatic impaction control loop B is equipped with pressure switch 23, carries out compressing circuit surge pressure using it
Setting with valley pressure and the output for completing electric control signal.Speed control loop is additionally provided on automatic impaction control loop B
D completes the conversion of pneumatic cylinder compress and release action using third solenoid directional control valve 24, is completed using the second one-way throttle valve 26
Pneumatic cylinder unclamps the setting of travel speed, and the setting of pneumatic cylinder clamping stroke speed is completed using the first one-way throttle valve 25.Gas
Close property test loop C is equipped with the second pressure reducing valve 27, and the setting of air tightness test dwell pressure is carried out using it.Air tightness test
Circuit C is equipped with the 4th solenoid directional control valve 28, completes the movement such as test loop pressurising-pressure maintaining-pressure release using it.Air tightness test
It is additionally provided with pressure sensor 29 on the C of circuit, whether there is the judgement of leakage using the reading of its completion dwell pressure value, seal chamber.
The specific connection type of outside control gas circuit is as follows: gas source is sequentially connected air accumulator and the first pressure reducing valve by pipeline
20, the pipeline at 20 rear of the first pressure reducing valve is divided into the first branch and second branch.Wherein the first branch passes through the first electromagnetic switch
It is connected simultaneously with the import of the second solenoid directional control valve 22, pressure switch 23 and third solenoid directional control valve 24 after valve 21, third electricity
Connection compresses quick-release connector 11 after the one outlet of magnetic reversal valve 24 passes through the first one-way throttle valve 25, another outlet passes through the
Quick-release connector 10 is unclamped in connection after two one-way throttle valves 26.Second branch passes sequentially through the second pressure reducing valve 27 and the 4th electromagnetic switch
After valve 28, while being connected with pressure sensor 29 and test loop quick-release connector 5.
The advantages of control loop are as follows: 1) the first pressure reducing valve 20, the achievable double pressure-controlled system of the second pressure reducing valve 27 are utilized, it is same
Gas source can meet the automatic impaction control loop B pressure demand different with air-tightness test loop C；2) circuit is opened equipped with pressure
Close 23, it is ensured that circuit pressure value guarantees the safety of circuit operation within the minimum pressure of setting and maximum pressure section
Property and stability, exportable switching value, facilitate system carry out electric automatization control；3) using the first one-way throttle valve 25,
The speed of second one-way throttle valve, 26 adjustable sealing lid downlink and uplink improves testing efficiency；4) pressure sensor 29 is utilized
With external electrical control system cooperation, it can be achieved that seal chamber pressure value real time monitoring and air-tightness whether He Ge judgement.
In addition, 20 front end of the first pressure reducing valve is also provided with filter, and rear end can be equipped with pressure gauge for gas circuit safety
Pressure is carried out to show.
The pollution-free air-tightness method for fast measuring of RV retarder based on above-mentioned measuring device, its step are as follows:
1) test loop quick-release connector 5, release quick-release connector 10, compression quick-release connector 11 are accessed as shown in Figure 3 external
It controls in gas circuit.20 pressure value of the first pressure reducing valve to top cover labyrinth 4 is adjusted to compress needed for the composition seal chamber of RV speed reducer ontology 9
Maximum pressure value (intraductal atmospheric pressure)；The second pressure reducing valve 27 is adjusted to pressure value needed for air tightness test (intraductal atmospheric pressure).Setting pressure
The surge pressure and valley pressure of power switch 23, it is however generally that, when top cover labyrinth 4 compresses RV speed reducer ontology 9, needed in gas circuit
There is certain pressure, which generally in a certain range, one can be determined according to the range and judges whether top cover labyrinth 4 presses
It is tightened to the threshold pressure of position.There may be abnormal conditions if pressure deviates the range.Therefore can be arranged according to the actual situation
Whether surge pressure and valley pressure are normally carried out judgement to 23 output signal of pressure switch.Adjust the first one-way throttle valve 25
Aperture sets the downstream rate of top cover labyrinth 4；The aperture of the second one-way throttle valve 26 is adjusted, the upper scanning frequency of top cover labyrinth 4 is set
Degree.Specific corresponding relationship between aperture and speed can be determined by debugging.
2) gas source is opened after setting, drives top cover labyrinth 4 to run to upper limit by pneumatic cylinder 1, infrared electro pair
Penetrating the detection of sensor 8 top cover labyrinth 4, whether uplink in place, stops 4 uplink of top cover labyrinth after reaching；RV speed reducer ontology 9 is put
It sets to seal base 7, infrared electro opposite type sensor 8 detects whether RV speed reducer ontology 9 is in place.
3) after RV speed reducer ontology 9 is in place, starting to test, control third solenoid directional control valve 24 works in left position,
Pneumatic cylinder 1 drives top cover labyrinth 4 to push, and constitutes closed seal chamber with RV speed reducer ontology 9 and seal base 7；Top cover labyrinth 4
During pushing, detect whether top cover labyrinth 4 compresses in place using infrared electro opposite type sensor 8, and pressure switch 23 controls
The range of pressure values of system, and output pressure value electric signal in place seal in the pressure value judgement detected by pressure switch 23
In place whether lid 4；When top cover labyrinth 4 in place after, control the first solenoid directional control valve 21 work carries out top cover labyrinth 4 in left position
Pressure maintaining guarantees that top cover labyrinth is in impaction state.
4) when infrared electro opposite type sensor 8 detect top cover labyrinth in place, the first solenoid directional control valve 21 be in left position protect
When pressure condition and normal 23 output signal of pressure switch, the work of the 4th solenoid directional control valve 28 of control carries out seal chamber in right position
Inflation, when the pressure value that pressure sensor 29 detects reaches air tightness test setting pressure maintaining value, pressure sensor 29 exports electricity
Signal is controlled, makes the work of the 4th solenoid directional control valve 28 to middle position, pressure maintaining is carried out to seal chamber.
5) after reaching the dwell time, the pressure value of pressure sensor 29 is read, if reading pressure value and setting pressure maintaining value
Unanimously, then determine that 9 air-tightness of RV speed reducer ontology is qualified, be otherwise unqualified.Using time relay reality in embodiment
The setting of existing system dwell time.
6) after 9 air tightness test of RV speed reducer ontology, control the 4th solenoid directional control valve 28 work is in left position, to close
It seals chamber and carries out pressure release, when pressure sensor 29 detects that pressure is 0, the work of the 4th solenoid directional control valve 28 of control is completed in middle position
Pressure release, and be ready for test next time.
7) test loop pressure release finishes, and infrared electro opposite type sensor 8 detects whether top cover labyrinth 4 is in lower limit, inspection
It measures after top cover labyrinth 4 is in lower limit, the work of the first solenoid directional control valve 21 of control controls third solenoid directional control valve 24 in right position
Work to right position, pneumatic cylinder 1 drives top cover labyrinth 4 to rise, and is up to when infrared electro opposite type sensor 8 detects top cover labyrinth 4
Behind position, the RV speed reducer ontology 9 currently tested is removed.
8) step 2)~7 are repeated), carry out RV speed reducer air-tightness batch testing.
9) after the completion of batch testing, gas source is first closed, the second solenoid directional control valve 22 is then controlled and works to left position, it is upper close
Capping 4 under the effect of gravity, comes downwards to lower limit, when infrared electro opposite type sensor 8 detects that top cover labyrinth 4 goes downwards to lower limit
Behind position, the second solenoid directional control valve 22 is resetted to right position, closes measuring device.
Embodiment described above is a kind of preferable scheme of the utility model, and so it is not practical to limit
It is novel.Those of ordinary skill in related technical field can be in the case where not departing from the spirit and scope of the utility model
It makes a variety of changes and modification.Therefore all mode technical solutions obtained for taking equivalent substitution or equivalent transformation, all fall within
In the protection scope of the utility model.
Claims (8)
1. a kind of pollution-free air-tightness rapid measurement device of RV retarder, which is characterized in that including pneumatic cylinder (1), rack (2),
Upper press cover (3), top cover labyrinth (4), support baseboard (6), seal base (7), snorkel and three groups of infrared electro opposite type sensors
(8)；The pneumatic cylinder (1) is fixed on rack (2) and its piston rod end is protruded into rack (2) inner cavity, on pneumatic cylinder (1)
Equipped with release quick-release connector (10) and compress quick-release connector (11)；The intracavity bottom of the rack (2) is fixed with support baseboard
(6), seal base (7) are fixed on support baseboard (6)；RV speed reducer ontology (9) to be tested lies against fixing seal bottom plate
(7) on；The piston rod of the pneumatic cylinder (1) is fixed with upper press cover (3), is fixed with top cover labyrinth (4) below upper press cover (3), on
Sealing cover (4) is with flexible the moving up and down of pneumatic cylinder (1) piston rod, and the flexible stroke of pneumatic cylinder (1) piston rod should expire
Foot can make top cover labyrinth (4) and fixing seal bottom plate (7) be close to the two sides of RV speed reducer ontology (9), constitute closed seal chamber；
Three groups of infrared electro opposite type sensors (8), and three groups of infrared electro opposite type sensors are laid on described rack (2) side
(8) setting height is different, is located at the upper limit height of top cover labyrinth (4), the lower limit height and RV of top cover labyrinth (4)
At the placing height of speed reducer ontology (9)；Described snorkel one end passes through seal base (7) connection seal chamber, separately
One end is equipped with test loop quick-release connector (5)；The test loop quick-release connector (5), unclamp quick-release connector (10), compress it is fast
Changing-over head (11) accesses in external control gas circuit.
2. the pollution-free air-tightness rapid measurement device of RV retarder as described in claim 1, which is characterized in that the outside
Control includes the first pressure reducing valve (20), the first solenoid directional control valve (21), the second solenoid directional control valve (22), pressure switch in gas circuit
(23), third solenoid directional control valve (24), the first one-way throttle valve (25), the second one-way throttle valve (26), the second pressure reducing valve (27),
4th solenoid directional control valve (28) and pressure sensor (29)；Gas source is sequentially connected air accumulator and the first pressure reducing valve by pipeline
(20), then pipeline is divided into the first branch and second branch；Wherein the first branch passes through the first solenoid directional control valve (21)
It is connected simultaneously with the import of the second solenoid directional control valve (22), pressure switch (23) and third solenoid directional control valve (24) afterwards, third
The one outlet of solenoid directional control valve (24) connects the compression quick-release connector (11) by the first one-way throttle valve (25) afterwards, separately
One outlet connects the release quick-release connector (10) by the second one-way throttle valve (26) afterwards；The second branch is successively
It is returned after the second pressure reducing valve (27) and the 4th solenoid directional control valve (28), while with pressure sensor (29) and the test
Road quick-release connector (5) is connected.
3. the pollution-free air-tightness rapid measurement device of RV retarder as described in claim 1, which is characterized in that described is upper close
The top cover labyrinth (4) covered when the upper limit height of (4) is hanging at the top of top cover labyrinth (4) disengaging RV speed reducer ontology (9) is high
Degree, the lower limit height of the top cover labyrinth (4) are that top cover labyrinth (4) are pressed in RV speed reducer ontology (9) upper surface composition
Top cover labyrinth (4) the height when seal chamber；The placing height of the RV speed reducer ontology (9) is RV speed reducer ontology
(9) height at any point in the altitude range of RV speed reducer ontology (9) when on fixing seal bottom plate (7) is lain against.
4. the pollution-free air-tightness rapid measurement device of RV retarder as claimed in claim 2, which is characterized in that described first
Solenoid directional control valve (21) uses two-position two-way electromagnetic directional valve, and the second solenoid directional control valve (22) uses bi-bit bi-pass electromagnetic switch
Valve, third solenoid directional control valve (24) use two-position five-way solenoid directional control valve, and the 4th solenoid directional control valve (28) is using 3-position-3-way electricity
Magnetic reversal valve, pressure switch (23) use double pressure switch.
5. the pollution-free air-tightness rapid measurement device of RV retarder as described in claim 1, which is characterized in that described is upper close
Capping (4) and fixing seal bottom plate (7) are fixed on upper press cover (3) and support baseboard (6) by screw respectively.
6. the pollution-free air-tightness rapid measurement device of RV retarder as claimed in claim 2, which is characterized in that described first
Pressure reducing valve (20) front end is additionally provided with filter, and the first pressure reducing valve (20) rear end is equipped with pressure gauge.
7. the pollution-free air-tightness rapid measurement device of RV retarder as described in claim 1, which is characterized in that the rack
(2) in the frame shape of two opposite side missings.
8. the pollution-free air-tightness rapid measurement device of RV retarder as described in claim 1, which is characterized in that the air pressure
Cylinder (1) is double-acting cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822166368.1U CN209311028U (en) | 2018-12-21 | 2018-12-21 | A kind of pollution-free air-tightness rapid measurement device of RV retarder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822166368.1U CN209311028U (en) | 2018-12-21 | 2018-12-21 | A kind of pollution-free air-tightness rapid measurement device of RV retarder |
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| Publication Number | Publication Date |
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| CN209311028U true CN209311028U (en) | 2019-08-27 |
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| CN201822166368.1U Active CN209311028U (en) | 2018-12-21 | 2018-12-21 | A kind of pollution-free air-tightness rapid measurement device of RV retarder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374237A (en) * | 2018-12-21 | 2019-02-22 | 浙江双环传动机械股份有限公司 | RV retarder is pollution-free air-tightness rapid measurement device and its method |
-
2018
- 2018-12-21 CN CN201822166368.1U patent/CN209311028U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374237A (en) * | 2018-12-21 | 2019-02-22 | 浙江双环传动机械股份有限公司 | RV retarder is pollution-free air-tightness rapid measurement device and its method |
| CN109374237B (en) * | 2018-12-21 | 2024-02-13 | 浙江环动机器人关节科技股份有限公司 | Pollution-free air tightness rapid measuring device and method for RV speed reducer |
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Effective date of registration: 20201021 Address after: 317600 electromechanical Industrial Park, Yucheng street, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Zhejiang environmental Robot Joint Technology Co.,Ltd. Address before: 317600 Shengyuan Road, Yuhuan City, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG SHUANGHUAN DRIVELINE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317600 electromechanical Industrial Park, Yucheng street, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Zhejiang Huandong Robot Joint Technology Co.,Ltd. Address before: 317600 electromechanical Industrial Park, Yucheng street, Yuhuan City, Taizhou City, Zhejiang Province Patentee before: Zhejiang environmental Robot Joint Technology Co.,Ltd. |