CN106840555A - Hydraulic cylinder air tightness detection apparatus - Google Patents
Hydraulic cylinder air tightness detection apparatus Download PDFInfo
- Publication number
- CN106840555A CN106840555A CN201611228477.0A CN201611228477A CN106840555A CN 106840555 A CN106840555 A CN 106840555A CN 201611228477 A CN201611228477 A CN 201611228477A CN 106840555 A CN106840555 A CN 106840555A
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- CN
- China
- Prior art keywords
- hydraulic cylinder
- detect tank
- air
- detection apparatus
- tightness detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
Abstract
The present invention relates to a kind of detection means, and in particular to hydraulic cylinder air tightness detection apparatus.The device includes inflator and detect tank, and air inlet pipe is connected with the inflator, and the outlet side of the air inlet pipe is provided with attachment cap；The bottom of the detect tank is provided with the base for fixer cylinder pressure, and the side of detect tank is rotatablely equipped with stopper rod chuck, the stopper rod chuck to detect tank outside side be fixedly connected with rotation dish；The graded tube for being provided with pin hole is installed with detect tank, the graded tube is connected with Taper Pipe built with marking fluid, the free end of graded tube, and the free end of the Taper Pipe is provided with snap ring.The present apparatus is easy to operate when air-tightness between hydraulic cylinder and piston is detected, the air-tightness of hydraulic cylinder can be fast and accurately judged, so as to improve detection efficiency.
Description
Technical field
The present invention relates to a kind of detection means, and in particular to hydraulic cylinder air tightness detection apparatus.
Background technology
Hydraulic cylinder is that hydraulic energy is changed into mechanical energy and straight reciprocating motion is done（Or oscillating motion）Hydraulic pressure perform unit
Part.Its simple structure, reliable operation.When being realized moving back and forth with it, deceleration device can be removed from, and without drive gap,
Stable movement, therefore be used widely in the hydraulic system of various machineries.Hydraulic cylinder power output and piston effective area and
The pressure difference on its both sides is directly proportional；Hydraulic cylinder substantially by cylinder barrel and cylinder cap, piston and piston rod, sealing device, buffer unit with
Exhaust apparatus is constituted.The most common problem of hydraulic cylinder is exactly oil leakage phenomenon, so that the hydraulic cylinder produced will carry out one
The detection of individual sealing property, the main object of detection is the sealing property between hydraulic cylinder and piston, and institute is judged by detection
Whether the hydraulic cylinder produced is qualified.Because the air-tightness of general detection hydraulic cylinder is all to use multi-faceted detection side at present
Formula, so that the comprehensive detection for realizing hydraulic cylinder, but such detection is slow, it is impossible to meet large batch of hydraulic cylinder fast
Speed detection, so that detection efficiency is relatively low.
The content of the invention
It is an object of the invention to provide a kind of hydraulic cylinder air tightness detection apparatus that can realize quick detection air-tightness.
To achieve these goals, the base case for being used is hydraulic cylinder air tightness detection apparatus, and the device includes filling
Mechanism of qi and detect tank, are connected with air inlet pipe on the inflator, the outlet side of the air inlet pipe is provided with attachment cap；The detection
The bottom of groove is provided with the base for fixer cylinder pressure, and the side of detect tank is rotatablely equipped with stopper rod chuck, the stopper rod card
Disk to detect tank outside side be fixedly connected with rotation dish；The graded tube for being provided with pin hole, the quarter are installed with detect tank
Built with marking fluid, the free end of graded tube is connected with Taper Pipe to degree pipe, and the free end of the Taper Pipe is provided with snap ring.
The operation principle of base case：This programme is placed on the base in detect tank by will need the hydraulic cylinder of detection
It is fixed, due to there is two hydraulic fluid ports on hydraulic cylinder, so when the air-tightness between hydraulic cylinder and piston is detected, by by air inlet pipe
The attachment cap of outlet side is connected with one of hydraulic fluid port, then starts inflator and is inflated in hydraulic cylinder, makes the liquid on hydraulic cylinder
Depression bar is outwards ejected, and is pushed up to on stopper rod chuck, and now hydraulic stem can not be continued to stretch out by dieback, so that corresponding piston
To stop sliding；Now Taper Pipe is connected on another hydraulic fluid port of hydraulic cylinder by snap ring, and keeps inflator to continue to fill
Gas, and constantly increase the blowing pressure of inflator, when sealing property is bad between hydraulic cylinder and piston, the gas being filled with is just
Taper Pipe can be entered from another oil port, be filled into the gas of discharge in graded tube by Taper Pipe, so that the mark in graded tube
Liquid produces movement, so as to realize the detection of air-tightness between hydraulic cylinder and piston；In addition when the rotation dish on rotation stopper rod chuck
When, will also drive hydraulic stem to rotate, and the piston passed in hydraulic cylinder will be rotated, it is produced rotation, by making work
Plug produces rotation, air-leakage test during so as to simulating piston with hydraulic cylinder generation relative motion.Compared with prior art, originally
Device is easy to operate when air-tightness between hydraulic cylinder and piston is detected, can fast and accurately judge the air-tightness of hydraulic cylinder
Can, so as to improve detection efficiency.
Base case is optimized and obtains prioritization scheme 1, the glass graduated tube of a diameter of 3-5mm of the graded tube.
The air leaked from piston during due to detection is less, so the diameter by reducing graded tube so that the mark in graded tube
Liquid movement is more obvious, so that the convenient judgement to air-tightness.
Prioritization scheme 1 is optimized and obtains prioritization scheme 2, the stopper rod chuck includes top board, support plate and multiple cylinders,
Air bag is connected between the top board and support plate, the air bag is communicated with each cylinder, and the piston rod of each cylinder is in together
In one plane and perpendicular to the hydraulic stem of hydraulic cylinder.By such setting, when the hydraulic stem of hydraulic cylinder is against stopper rod chuck
During top board, will cause that the air bag between top board and support plate is compressed, and so as to the air of air bag is extruded into connected cylinder, is made
The piston rod of each cylinder stretches out, and pushes up to hydraulic stem side face, so that the fixation to hydraulic stem is realized, while hydraulic stem is got over compressing
During top board, the active force of cylinder piston rod is bigger, so as to produce hydraulic stem to fix the effect of self-locking.
Base case and prioritization scheme 1,2 are optimized respectively and obtains prioritization scheme 3, inflation is provided with the attachment cap
The compression ring of expansion afterwards, the compression ring is communicated with air inlet pipe.By such setting, can cause that attachment cap is connected on hydraulic fluid port
When, compression ring can be by the effect of inflation so that attachment cap produces preferable sealing function with corresponding hydraulic fluid port.
Prioritization scheme 3 is optimized and obtains prioritization scheme 4, the cavity connected with outer wall is provided with the base, it is described
Cavity is provided with vavuum pump；The top surface of base is provided with slipmat, and the sucker connected with cavity is provided with the slipmat.Pass through
Such setting can firmly be held the cylinder body of hydraulic cylinder by the negative pressure produced at sucker, so as to prevent its detection when
Produce slip.
Brief description of the drawings
Fig. 1 is the structural representation of hydraulic cylinder air tightness detection apparatus；
Fig. 2 is the structural representation of attachment cap.
Specific embodiment
Drawing reference numeral explanation：Inflator 1, air inlet pipe 2, attachment cap 3, Taper Pipe 4, graded tube 5, marking fluid 6, detect tank 7, plug
Bar chuck 8, rotation dish 9, base 10, the first hydraulic fluid port 11, hydraulic stem 12, the second hydraulic fluid port 13, compression ring 14, cylinder 15.
Hydraulic cylinder air tightness detection apparatus as shown in Figure 1, including inflator 1 and detect tank 7, be connected with inflator 1 into
Attachment cap 3 is installed in tracheae 2, the outlet side of air inlet pipe 2, as shown in Fig. 2 being provided with compression ring 14 in attachment cap 3, compression ring 14 passes through pin
Pipe is connected with air inlet pipe 2.It is provided with the bottom mounting seat 10 of detect tank 7, base 10 and the outside cavity connected, peace in cavity
Equipped with vavuum pump, the top surface of base 10 is provided with one layer of slipmat of rubber, and the sucker connected with cavity is provided with slipmat.Detection
Rotate to install on the right side wall of groove 7 and rotate stopper rod chuck 8, stopper rod chuck 8 is made up of support plate and top board, connects between support plate and top board
The air bag equipped with air is connected to, the air bag is connected with multiple cylinders 15, and the piston rod of each cylinder 15 is all perpendicular to hydraulic cylinder
Hydraulic stem 12, and each piston rod is all on same plane；Rotation dish 9 is connected with the outside of support plate, is installed in rotation dish 9
There is handle.The right side wall of detect tank 7 is further fixed on graded tube 5, graded tube 5 near the side of the right side wall of detect tank 7 be provided with outward
The pin hole that boundary communicates, a diameter of 4mm of graded tube 5, and it is internal equipped with red marking fluid 6, free end and the cone of graded tube 5
Pipe 4 is connected, and snap ring is provided with Taper Pipe 4.
It is solid on the base 10 that hydraulic cylinder is placed in detect tank 7 when the air-tightness of hydraulic cylinder and itself piston is detected
It is fixed, and start vavuum pump；Due to there are two hydraulic fluid ports on hydraulic cylinder, the first hydraulic fluid port 11 and the second hydraulic fluid port 13 are set to for the time being, so
When detecting the air-tightness between hydraulic cylinder and piston, it is connected with the first hydraulic fluid port 11 by by the attachment cap 3 of the outlet side of air inlet pipe 2,
Then startup inflator 1 is inflated in hydraulic cylinder, the hydraulic stem 12 on hydraulic cylinder is outwards ejected, and push up extremely to stopper rod chuck 8
On, and piston rod on cylinder 15 will be pushed against on hydraulic stem 12, and now hydraulic stem can not be continued to stretch out by dieback, so that right
The piston answered will also stop sliding；Now Taper Pipe 4 is connected on the second hydraulic fluid port 13 of hydraulic cylinder by snap ring, and holding is filled
Mechanism of qi 1 continues to inflate, and constantly increases the blowing pressure of inflator 1, when sealing property is bad between hydraulic cylinder and piston, institute
The gas being filled with will enter Taper Pipe 4 from the second oil port, and be filled into the gas of discharge in graded tube 5 by Taper Pipe 4, so that carving
Marking fluid 6 in degree pipe 5 produces movement, so as to realize the detection of air-tightness between hydraulic cylinder and piston；In addition when rotation stopper rod
During rotation dish 9 on chuck 8, will also drive hydraulic stem 12 to rotate, and the piston passed in hydraulic cylinder will be rotated, also make it
Generation rotation, rotation is produced by making piston, air-leakage test during so as to simulating piston with hydraulic cylinder generation relative motion.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure or characteristic is not made herein in scheme
Excessive description.It should be pointed out that for a person skilled in the art, on the premise of structure of the present invention is not departed from, can be with
Some deformations and improvement are made, these should also be considered as protection scope of the present invention, these are implemented all without the influence present invention
Effect and practical applicability.This application claims protection domain should be defined by the content of its claim, in specification
Specific embodiment etc. records the content that can be used for explaining claim.
Claims (5)
1. a kind of hydraulic cylinder air tightness detection apparatus, it is characterised in that：Including inflator and detect tank, it is connected with the inflator
Air inlet pipe, the outlet side of the air inlet pipe is provided with attachment cap；The bottom of the detect tank is provided with for fixer cylinder pressure
Base, the side of detect tank is rotatablely equipped with stopper rod chuck, the stopper rod chuck to detect tank outside side be fixedly connected with and turn
Moving plate；The graded tube for being provided with pin hole is installed with detect tank, the graded tube is built with marking fluid, the free end of graded tube
Taper Pipe is connected with, the free end of the Taper Pipe is provided with snap ring.
2. hydraulic cylinder air tightness detection apparatus according to claim 1, it is characterised in that：A diameter of 3- of the graded tube
The glass graduated tube of 5mm.
3. hydraulic cylinder air tightness detection apparatus according to claim 2, it is characterised in that：The stopper rod chuck include top board,
Support plate and multiple cylinders, are connected with air bag between the top board and support plate, the air bag is communicated with each cylinder, each cylinder
Piston rod is on same plane and perpendicular to the hydraulic stem of hydraulic cylinder.
4. hydraulic cylinder air tightness detection apparatus according to claims 1 to 3 any one, it is characterised in that：The attachment cap
The compression ring of expansion after inflating inside is provided with, the compression ring is communicated with air inlet pipe.
5. hydraulic cylinder air tightness detection apparatus according to claim 4, it is characterised in that：It is provided with the base and is connected with outer wall
Logical cavity, the cavity is provided with vavuum pump；The top surface of base is provided with slipmat, is provided with the slipmat and connected with cavity
Logical sucker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228477.0A CN106840555B (en) | 2016-12-27 | 2016-12-27 | Hydraulic cylinder air tightness detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611228477.0A CN106840555B (en) | 2016-12-27 | 2016-12-27 | Hydraulic cylinder air tightness detection apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106840555A true CN106840555A (en) | 2017-06-13 |
| CN106840555B CN106840555B (en) | 2018-12-07 |
Family
ID=59136682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611228477.0A Active CN106840555B (en) | 2016-12-27 | 2016-12-27 | Hydraulic cylinder air tightness detection apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN106840555B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655892A (en) * | 2017-10-31 | 2018-02-02 | 电子科技大学中山学院 | Lithium battery monitoring device |
| CN109489910A (en) * | 2018-12-29 | 2019-03-19 | 重庆维庆液压机械有限公司 | Hydraulic cylinder detection device |
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| RU2052782C1 (en) * | 1992-04-01 | 1996-01-20 | Сергей Григорьевич Межов | Device for inspecting air-tightness of annular seals of hydraulic cylinders |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655892A (en) * | 2017-10-31 | 2018-02-02 | 电子科技大学中山学院 | Lithium battery monitoring device |
| CN107655892B (en) * | 2017-10-31 | 2023-09-12 | 安徽能通新能源科技有限公司 | Lithium battery monitoring device |
| CN109489910A (en) * | 2018-12-29 | 2019-03-19 | 重庆维庆液压机械有限公司 | Hydraulic cylinder detection device |
| CN109489910B (en) * | 2018-12-29 | 2020-07-17 | 重庆维庆液压机械有限公司 | Hydraulic cylinder detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106840555B (en) | 2018-12-07 |
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Effective date of registration: 20210223 Address after: 401120 Yubei District, Chongqing Shuangfeng bridge airport development zone, Xiangyu Road, No. 15, 2. Patentee after: Chongqing Bochuang Intellectual Property Operations Co.,Ltd. Address before: No. 999 Xingguang Avenue, Yongchuan District, Chongqing 402160 (in Fenghuang Lake Industrial Park, Yongchuan Industrial Park, Chongqing) Patentee before: CHONGQING WAYCH HYDRAULIC MACHINERY Co.,Ltd. |