CN203516242U - Hydraulic circuit device with two throttling valves - Google Patents
Hydraulic circuit device with two throttling valves Download PDFInfo
- Publication number
- CN203516242U CN203516242U CN201320470512.5U CN201320470512U CN203516242U CN 203516242 U CN203516242 U CN 203516242U CN 201320470512 U CN201320470512 U CN 201320470512U CN 203516242 U CN203516242 U CN 203516242U
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- CN
- China
- Prior art keywords
- valve
- throttle valve
- oil hydraulic
- hydraulic pump
- hydraulic
- 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.)
- Expired - Fee Related
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model provides a hydraulic circuit device with two throttling valves. The hydraulic circuit device comprises a hydraulic pump, an oil tank arranged at the bottom of the hydraulic pump, a reversing pump arranged on the top of the hydraulic pump, and a hydraulic cylinder arranged on the top of the reversing valve. A closed circuit is arranged between the reversing valve and the hydraulic cylinder. The hydraulic circuit device with the two throttling vales is reasonable in design, firm in structure, reliable in working, high in working efficiency, convenient to operate, capable of lowering potential safety hazards, and safe to use.
Description
Technical field
The utility model relates to hydraulic equipment, is especially provided with the circuit apparatus for hydraulic of two throttle valve.
Background technique
Hydraulic pressure fundamental circuit comprises, direction control circuit, pressure control circuit, speed control loop, multi-cylinder control loop etc.Wherein pressure circuit is to control hydraulic system pressure in whole or in part, obtains the loop of required power or torque or maintenance stress with executive component.This class loop comprises that pressure regulation, decompression, pressurize, release, balance, off-load etc. are multiple, and when hydraulic work system, oil hydraulic pump should provide to system the hydraulic oil of required pressure, simultaneously, can save the energy again, reduce fluid heating, improve the stationarity of actuator movement.So, pressure regulation or pressure limiting loop should be set.When oil hydraulic pump is operated in the set pressure of system always, will regulate the also working pressure of stabilizing solution press pump by relief valve.In order to give the pressure of alleviating on loop, conventionally all can be provided with a throttle valve, convenient to just throttling of fluid, but many times, pressure is excessive, and a throttle valve can not carry out effectively throttling, still can cause damage to device, uses inconvenient.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of novel structure, the easy to use circuit apparatus for hydraulic that is provided with two throttle valve.
For solving above-mentioned existing technical problem, the utility model adopts following scheme: the circuit apparatus for hydraulic that is provided with two throttle valve, comprise oil hydraulic pump, be located at oil hydraulic pump bottom fuel tank, be located at oil hydraulic pump top selector valve, be located at the oil hydraulic cylinder at selector valve top, described selector valve is provided with closed-loop path with oil hydraulic cylinder centre.
As preferably, described closed-loop path is provided with one-way valve, the throttle valve that is used for controlling hydraulic flow being arranged in parallel with one-way valve, the stroke valve that is located at throttle valve one side, one-way valve can prevent fluid reverse flow, and throttle valve plays the effect of throttling to fluid, reduces the pressure on loop.
As preferably, described closed-loop path is provided with two throttle valve, and two throttle valve adopt the Placement of series connection, and being provided with two throttle valve just can the more effective effect that play throttling to fluid.
As preferably, described oil hydraulic pump is provided with the relief valve that reduces circuit pressure, connects fuel tank on relief valve, and the fluid that oil hydraulic pump discharges can flow to fuel tank by relief valve, alleviates the pressure of branch road.
Beneficial effect:
The utility model has adopted technique scheme that the circuit apparatus for hydraulic that is provided with two throttle valve is provided, and has made up the deficiencies in the prior art, reasonable in design, sound construction, and reliable operation, working efficiency is high, easy to operate, reduces potential safety hazard, uses safety.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, be provided with the circuit apparatus for hydraulic of two throttle valve, comprise oil hydraulic pump 1, be located at the fuel tank 2 of oil hydraulic pump 1 bottom, be located at the selector valve 3 at oil hydraulic pump 1 top, be located at the oil hydraulic cylinder 4 at selector valve 3 tops, described selector valve 3 and the middle closed-loop path that is provided with of oil hydraulic cylinder 4, described closed-loop path is provided with one-way valve 5, the throttle valve 6 that is used for controlling hydraulic flow being arranged in parallel with one-way valve 5, be located at the stroke valve of throttle valve 6 one sides, described closed-loop path is provided with two throttle valve 6, and two throttle valve 6 adopt the Placement of series connection, described oil hydraulic pump 1 is provided with the relief valve 8 that reduces circuit pressure, on relief valve 8, connect fuel tank 2.
During real work, oil hydraulic pump 1 is connected with the mains, selector valve 3 moves, connect in-line and oil circuit, electromagnet 1YA energising, 2YA and 3YA power-off, because pressure is little, relief valve 8 is in closed condition, and only opens a throttle valve 6, now oil-feed route: fuel tank 2 → oil hydraulic pump 1 → selector valve 3 → throttle valve 6 → stroke valve, 7 → oil hydraulic cylinder 4 left chambeies; Oil return route: the right chamber → selector valve 3 → fuel tank 2 of oil hydraulic cylinder 4, motion along with oil hydraulic cylinder 4, pressure increases gradually, electromagnet 1YA and 3YA energising, 2YA power-off, relief valve 8 is all opened with throttle valve 6, and now in-line separates two lines: article one: fuel tank 2 → oil hydraulic pump 1 → relief valve 8 → fuel tank 2; Second: 3 → two left chambeies of throttle valve 6 → oil hydraulic cylinder 4 of fuel tank 2 → oil hydraulic pump 1 → selector valve; Oil return route: the right chamber → selector valve 3 → fuel tank 2 of oil hydraulic cylinder 4; By the time oil hydraulic cylinder 4 moves to the bottom on right side, electromagnet 2YA energising, and 1YA and 3YA power-off, selector valve 3 starts mobile, and in-line and vent line change, now oil-feed route: fuel tank 2 → oil hydraulic pump 1 → selector valve 3 → oil hydraulic cylinder 4 right chambeies; Oil return route: the left chamber → one-way valve 5 → selector valve of oil hydraulic cylinder 43 → fuel tank 2, this device, at original technical throttle valve 6 that increased, can more effectively play the effect of a throttling to the fluid on loop, use convenient.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (4)
1. be provided with the circuit apparatus for hydraulic of two throttle valve, comprise oil hydraulic pump (1), be located at oil hydraulic pump (1) bottom fuel tank (2), be located at oil hydraulic pump (1) top selector valve (3), be located at the oil hydraulic cylinder (4) at selector valve (3) top, it is characterized in that: in the middle of described selector valve (3) and oil hydraulic cylinder (4), be provided with closed-loop path.
2. the circuit apparatus for hydraulic that is provided with two throttle valve according to claim 1, is characterized in that: described closed-loop path is provided with one-way valve (5), the throttle valve that is used for controlling hydraulic flow (6) being arranged in parallel with one-way valve (5), the stroke valve (7) that is located at throttle valve (6) one sides.
3. the circuit apparatus for hydraulic that is provided with two throttle valve according to claim 2, is characterized in that: described closed-loop path is provided with two throttle valve (6), and two throttle valve (6) adopt the Placement of series connection.
4. the circuit apparatus for hydraulic that is provided with two throttle valve according to claim 1, is characterized in that: described oil hydraulic pump (1) is provided with the relief valve (8) that reduces circuit pressure, the upper fuel tank (2) that connects of relief valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470512.5U CN203516242U (en) | 2013-08-02 | 2013-08-02 | Hydraulic circuit device with two throttling valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470512.5U CN203516242U (en) | 2013-08-02 | 2013-08-02 | Hydraulic circuit device with two throttling valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516242U true CN203516242U (en) | 2014-04-02 |
Family
ID=50375178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320470512.5U Expired - Fee Related CN203516242U (en) | 2013-08-02 | 2013-08-02 | Hydraulic circuit device with two throttling valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235105A (en) * | 2014-09-18 | 2014-12-24 | 芜湖高昌液压机电技术有限公司 | Gantry lifter serial connection speed conversion loop |
| CN104386617A (en) * | 2014-09-18 | 2015-03-04 | 芜湖高昌液压机电技术有限公司 | Parallel speed conversion loop of gantry lifting machine |
-
2013
- 2013-08-02 CN CN201320470512.5U patent/CN203516242U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235105A (en) * | 2014-09-18 | 2014-12-24 | 芜湖高昌液压机电技术有限公司 | Gantry lifter serial connection speed conversion loop |
| CN104386617A (en) * | 2014-09-18 | 2015-03-04 | 芜湖高昌液压机电技术有限公司 | Parallel speed conversion loop of gantry lifting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20150802 |
|
| EXPY | Termination of patent right or utility model |