CN108571491A - A kind of hydraulic cylinder applied voltage test test device - Google Patents
A kind of hydraulic cylinder applied voltage test test device Download PDFInfo
- Publication number
- CN108571491A CN108571491A CN201710145208.6A CN201710145208A CN108571491A CN 108571491 A CN108571491 A CN 108571491A CN 201710145208 A CN201710145208 A CN 201710145208A CN 108571491 A CN108571491 A CN 108571491A
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- connect
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- check valve
- cylinder
- directional control
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to hydraulic cylinder technical field of measurement and test, more particularly to a kind of hydraulic cylinder applied voltage test test device, including oil groove, variable pump, speed governing valve, overflow valve, the first three position four-way directional control valve, double acting pressurized cylinder, the first check valve, the second check valve, third check valve, the 4th check valve, constant displacement pump and the second three position four-way directional control valve；Using double acting pressurized cylinder, complete, to the applied voltage test of hydraulic cylinder, to make experiment be smoothed out, while the apparatus structure is simple, of low cost by high-voltage oil liquid, simple operation has good practicability, is conducive to promote.
Description
Technical field
The present invention relates to hydraulic cylinder technical field of measurement and test, and in particular to a kind of hydraulic cylinder applied voltage test test device.
Background technology
Hydraulic cylinder is that hydraulic energy is changed into mechanical energy, does straight reciprocating motion or the hydraulic pressure of pendulum motion executes member
Part.Its simple in structure, reliable operation when realizing reciprocating motion, can remove deceleration device from it, and not have drive gap,
Stable movement, therefore be used widely in the hydraulic system of various machineries.But a hydraulic cylinder product is after design, it is past
Past to need to carry out various experiments, such as endurance test, applied voltage test etc., at runtime due to hydraulic cylinder, superpressure is run sometimes,
The applied voltage test is essential, but existing test device, complicated, cumbersome.
Invention content
The purpose of the present invention is to provide a kind of hydraulic cylinder applied voltage test test devices simple in structure, simple operation.
In order to achieve the above object, the technical solution adopted by the present invention is：A kind of hydraulic cylinder applied voltage test test device, packet
Include oil groove, variable pump, speed governing valve, overflow valve, the first three position four-way directional control valve, double acting pressurized cylinder, the first check valve, the second list
To valve, third check valve, the 4th check valve, constant displacement pump and the second three position four-way directional control valve；The double acting pressurized cylinder includes a left side
Be equipped with a piston in cylinder body and right cylinder body, the left cylinder and right cylinder body, the left cylinder by piston be divided into the first from left chamber and
The second from left chamber, the right cylinder body are divided into a right chamber and right two chambers by piston, are connected by connecting rod between the two-piston, the change
The oil inlet of amount pump is connect with oil groove, and the oil outlet of the variable pump and the oil inlet of speed governing valve connect, and the speed governing valve goes out
Hydraulic fluid port is connect with the P1 of the first three position four-way directional control valve mouths, and the T1 mouths of first three position four-way directional control valve are connect with oil groove, institute
The A1 mouths for stating the first three position four-way directional control valve are connect with the second from left chamber of double acting pressurized cylinder, first three position four-way directional control valve
B1 mouthfuls connect with one chamber of the right side of double acting pressurized cylinder, and the import of the constant displacement pump is connect with oil groove, the outlet one of the constant displacement pump
Road is connect with the import of the first check valve, and another way is connect with the import of the second check valve, the outlet of first check valve with
The first from left chamber of double acting pressurized cylinder connects, and the outlet of second check valve is connect with two chamber of the right side of double acting pressurized cylinder, described
The import of third check valve is connect with the first from left chamber of double acting pressurized cylinder, import and the double acting pressurized cylinder of the 4th check valve
The connection of the right side two chamber, the outlet of the third check valve and the outlet of the 4th check valve link together after with the second 3-position 4-way
The P2 mouths of reversal valve connect, and the T2 mouths of second three position four-way directional control valve are connect with oil groove, the second 3-position 4-way commutation
The A2 mouths of valve are connect with the rodless cavity of tested hydraulic cylinder, the B2 mouths of second three position four-way directional control valve and having for tested hydraulic cylinder
Rod cavity connects, and the oil inlet of the overflow valve and the oil outlet of variable pump connect, and the oil outlet of the overflow valve is connect with oil groove.
A kind of hydraulic cylinder applied voltage test test device as described above, further illustrates to be the variable pump and constant displacement pump
Oil inlet be equipped with oil strainer.
The beneficial effects of the invention are as follows：Using double acting pressurized cylinder, the pressurization to hydraulic cylinder is completed by high-voltage oil liquid and is tried
It tests, experiment is made to be smoothed out, while the apparatus structure is simple, of low cost, simple operation has good practicability, is conducive to
It promotes.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：1, oil groove；2, variable pump；3, speed governing valve；4, overflow valve；5, the first three position four-way directional control valve；6, double acting
Pressurized cylinder；7, the first check valve；8, the second check valve；9, third check valve；10, the 4th check valve；11, constant displacement pump；12, second
Three position four-way directional control valve；13, the first from left chamber；14, the second from left chamber；15, a right chamber；16, right two chambers；17, it is tested hydraulic cylinder；18, oily mistake
Filter.
Specific implementation mode
Embodiment of the present invention is further elaborated below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of hydraulic cylinder applied voltage test test device provided by the invention, including oil groove 1, variable pump 2, tune
Fast valve 3, overflow valve 4, the first three position four-way directional control valve 5, double acting pressurized cylinder 6, the first check valve 7, the second check valve 8, third
Check valve 9, the 4th check valve 10, constant displacement pump 11 and the second three position four-way directional control valve 12.
The double acting pressurized cylinder 6 includes left cylinder and right cylinder body, and a piston is equipped in the left cylinder and right cylinder body,
The left cylinder is divided into the first from left chamber 13 and the second from left chamber 14 by piston, and the right cylinder body is divided into one chamber 15 of the right side and the right side two by piston
Chamber 16 is connected by connecting rod between the two-piston, and when injecting high pressure liquid pressure oil into the second from left chamber 14, then piston is to moving to left
Dynamic, to which 13 volume of the first from left chamber becomes smaller, the fluid in the first from left chamber 13 then exports outward, and right two chambers, 16 volume becomes larger, then to the right
Fluid is injected in two chambers 16；Similarly, when injecting high pressure liquid pressure oil in a chamber 15 to the right, then piston moves right, to the right side two
6 volume of chamber becomes smaller, and the fluid in right two chambers 16 then exports outward, and 13 volume of the first from left chamber becomes larger, then is injected into the first from left chamber 13
Fluid, detailed process will be described in detail below.
The oil inlet of the variable pump 2 is connect with oil groove 1, and oil strainer 18 can also be arranged in the oil inlet of variable pump 2,
It can be filtered to entering the hydraulic oil in device by oil strainer 18, to make fluid more clean, protect each set
It is standby, the service life of each equipment is extended, setting oil strainer 18 is a kind of preferred embodiment, and oily filtering can not also be arranged
Device 18.
The oil outlet of the variable pump 2 is connect with the oil inlet of speed governing valve 3, the oil outlet of the speed governing valve 3 and the one or three
The P1 mouths of position and four-way reversing valve 5 connect, and the T1 mouths of first three position four-way directional control valve 5 are connect with oil groove 1, described one or three
The A1 mouths of four-way reversing valve 5 are connect with the second from left chamber 14 of double acting pressurized cylinder, the B1 mouths of first three position four-way directional control valve 5 with
The right side one chamber 15 connection of double acting pressurized cylinder.
The import of the constant displacement pump 11 is connect with oil groove 1, similarly oil strainer can be arranged in the entrance of constant displacement pump 11
18.The outlet of the constant displacement pump 11 is connect with the import of the first check valve 7 all the way, and another way and the import of the second check valve 8 connect
It connects, the outlet of first check valve 7 is connect with the first from left chamber 13 of double acting pressurized cylinder, i.e., by constant displacement pump 11 by low pressure fluid
It is injected in the first from left chamber 13 by the first check valve 7.The outlet of second check valve 10 and two chamber 16 of the right side of double acting pressurized cylinder
Connection is injected low pressure fluid in the second from left chamber 16 by the second check valve 8 by constant displacement pump 11.The third check valve 9
Import is connect with the first from left chamber 13 of double acting pressurized cylinder, the import of the 4th check valve 10 and two chamber of the right side of double acting pressurized cylinder
16 connections, the outlet of the third check valve 9 and the outlet of the 4th check valve 10 are changed after linking together with the second 3-position 4-way
It is connected to the P2 mouths of valve 12, the T2 mouths of second three position four-way directional control valve 12 are connect with oil groove 1, and second 3-position 4-way changes
It is connect to the A2 mouths of valve 12 with the rodless cavity of tested hydraulic cylinder 17, the B2 mouths and test solution of second three position four-way directional control valve 12
The rod chamber of cylinder pressure 17 connects, i.e., the high-voltage oil liquid that double acting pressurized cylinder 6 exports is transported in the second three position four-way directional control valve 12,
It is finally completed the applied voltage test to being tested hydraulic cylinder 17.
The oil inlet of the overflow valve 4 is connect with the oil outlet of variable pump 2, and oil outlet and the oil groove 1 of the overflow valve 4 connect
It connects.
The operation principle of the present invention is that：When the first three position four-way directional control valve 5 is located at left station, the height of the output of variable pump 2
Hydraulic fluid pressure oil enters after speed governing valve 3, the first three position four-way directional control valve 5 in the second from left chamber 14, to which piston is moved to the left, the right side one
Hydraulic oil in chamber 15 flows into after the first three position four-way directional control valve 5 in oil groove 1, while the fluid in the first from left chamber 13 is in piston
Extruding under pressure increase, for experiment high-voltage oil liquid is provided, pass through after the secondth three position four-way directional control valve 12 flow to be tested hydraulic pressure
In cylinder 17, realize that the applied voltage test of hydraulic cylinder, the low pressure fluid that constant displacement pump 11 exports flow into right two chambers 16 after the second check valve 8
In, and the first check valve 7 is by pressure due to being influenced, to which the low pressure fluid that constant displacement pump 11 exports cannot then enter the first from left chamber 13
In, and the 4th check valve 10 is by pressure due to being influenced, to which the low pressure water in right two chambers 16 then cannot be from the 4th check valve 10
Middle outflow.When tested hydraulic cylinder 17 is commutated, the first three position four-way directional control valve 5 and the second 3-position 4-way only need to be switched simultaneously
Reversal valve 12, simple operation are simple in structure.Using double acting pressurized cylinder, hydraulic cylinder is added by high-voltage oil liquid completion
Pressure experiment, makes experiment be smoothed out.
The present invention is not limited to examples detailed above, in claims of the present invention limited range, art technology
The various deformations or amendments that personnel can make without creative work are protected by this patent.
Claims (2)
1. a kind of hydraulic cylinder applied voltage test test device, it is characterised in that：Including oil groove (1), variable pump (2), speed governing valve (3),
Overflow valve (4), the first three position four-way directional control valve (5), double acting pressurized cylinder (6), the first check valve (7), the second check valve (8),
Third check valve (9), the 4th check valve (10), constant displacement pump (11) and the second three position four-way directional control valve (12)；The double acting increases
Cylinder pressure (6) includes left cylinder and right cylinder body, a piston is equipped in the left cylinder and right cylinder body, the left cylinder is by piston point
It is segmented into the first from left chamber (13) and the second from left chamber (14), the right cylinder body is divided into a right chamber (15) and right two chambers (16) by piston, described
Connected by connecting rod between two-piston, the oil inlet of the variable pump (2) is connect with oil groove (1), the variable pump (2) it is fuel-displaced
Mouth is connect with the oil inlet of speed governing valve (3), the oil outlet of the speed governing valve (3) and the P1 mouths of the first three position four-way directional control valve (5)
Connection, the T1 mouths of first three position four-way directional control valve (5) are connect with oil groove (1), first three position four-way directional control valve (5)
A1 mouthfuls connect with the second from left chamber (14) of double acting pressurized cylinder, and B1 mouths and the double acting of first three position four-way directional control valve (5) increase
One chamber of the right side (15) of cylinder pressure connects, and the import of the constant displacement pump (11) is connect with oil groove (1), the outlet one of the constant displacement pump (11)
Road is connect with the import of the first check valve (7), and another way is connect with the import of the second check valve (8), first check valve (7)
Outlet connect with the first from left chamber (13) of double acting pressurized cylinder, the outlet of second check valve (10) and double acting pressurized cylinder
Right two chambers (16) connect, and the import of the third check valve (9) is connect with the first from left chamber (13) of double acting pressurized cylinder, and the described 4th
The import of check valve (10) is connect with two chamber of the right side (16) of double acting pressurized cylinder, the outlet and the 4th of the third check valve (9)
The outlet of check valve (10) is connect after linking together with the P2 mouths of the second three position four-way directional control valve (12), described two or three four
The T2 mouths of logical reversal valve (12) are connect with oil groove (1), A2 mouths and the tested hydraulic cylinder of second three position four-way directional control valve (12)
(17) rodless cavity connection, the B2 mouths of second three position four-way directional control valve (12) connect with the rod chamber of tested hydraulic cylinder (17)
It connects, the oil inlet of the overflow valve (4) is connect with the oil outlet of variable pump (2), the oil outlet and oil groove of the overflow valve (4)
(1) it connects.
2. a kind of hydraulic cylinder applied voltage test test device according to claim 1, it is characterised in that：The variable pump (2)
It is equipped with oil strainer (18) with the oil inlet of constant displacement pump (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710145208.6A CN108571491A (en) | 2017-03-13 | 2017-03-13 | A kind of hydraulic cylinder applied voltage test test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710145208.6A CN108571491A (en) | 2017-03-13 | 2017-03-13 | A kind of hydraulic cylinder applied voltage test test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108571491A true CN108571491A (en) | 2018-09-25 |
Family
ID=63578229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710145208.6A Withdrawn CN108571491A (en) | 2017-03-13 | 2017-03-13 | A kind of hydraulic cylinder applied voltage test test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108571491A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026907A (en) * | 2018-10-26 | 2018-12-18 | 杭州先力液压机械有限公司 | Oil cylinder special test platform and its test method |
| CN110081044A (en) * | 2019-04-15 | 2019-08-02 | 宣化钢铁集团有限责任公司 | A kind of hydraulic leak detector valve and online leak hunting method |
| CN110864031A (en) * | 2019-11-11 | 2020-03-06 | 济南华凯葳液压科技有限公司 | Detection system for overcoming hydraulic oil temperature rise in hydraulic detection process |
| CN114483712A (en) * | 2022-02-04 | 2022-05-13 | 浙江大学 | Hydraulic cylinder micro-internal leakage detection test bed and detection method thereof |
-
2017
- 2017-03-13 CN CN201710145208.6A patent/CN108571491A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026907A (en) * | 2018-10-26 | 2018-12-18 | 杭州先力液压机械有限公司 | Oil cylinder special test platform and its test method |
| CN109026907B (en) * | 2018-10-26 | 2023-12-19 | 浙江匠心液压科技有限公司 | Test bench special for oil cylinder and test method thereof |
| CN110081044A (en) * | 2019-04-15 | 2019-08-02 | 宣化钢铁集团有限责任公司 | A kind of hydraulic leak detector valve and online leak hunting method |
| CN110081044B (en) * | 2019-04-15 | 2024-02-02 | 宣化钢铁集团有限责任公司 | Hydraulic leak detection valve and online leak detection method |
| CN110864031A (en) * | 2019-11-11 | 2020-03-06 | 济南华凯葳液压科技有限公司 | Detection system for overcoming hydraulic oil temperature rise in hydraulic detection process |
| CN114483712A (en) * | 2022-02-04 | 2022-05-13 | 浙江大学 | Hydraulic cylinder micro-internal leakage detection test bed and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180925 |
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| WW01 | Invention patent application withdrawn after publication |