CN214247829U - Hydraulic slow-release system - Google Patents
Hydraulic slow-release system Download PDFInfo
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- CN214247829U CN214247829U CN202120030458.7U CN202120030458U CN214247829U CN 214247829 U CN214247829 U CN 214247829U CN 202120030458 U CN202120030458 U CN 202120030458U CN 214247829 U CN214247829 U CN 214247829U
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Abstract
The utility model discloses a hydraulic pressure slowly lets out system belongs to hydraulic system technical field. The hydraulic slow-release system comprises an oil tank, a hydraulic oil pump, a hydraulic valve block and a hydraulic oil cylinder; the oil tank, the hydraulic oil pump and the hydraulic valve block are communicated in sequence through pipelines to form a loop; the rod cavity and the rodless cavity of the hydraulic oil cylinder are respectively communicated with the hydraulic valve block through pipelines; an overflow valve is communicated between an oil inlet main pipeline and an oil return pipeline of the hydraulic valve block through an internal oil way, and the pressure of a main oil way is controlled by adjusting the overflow valve; the hydraulic oil pump is elastically connected with the motor through the coupler and the pump sleeve, the motor is electrified and then rotates to drive the hydraulic oil pump to rotate, and hydraulic oil is sucked out of the oil tank and then is pressurized and conveyed to the hydraulic valve block. The hydraulic slow-release system controls the pressure of a rodless cavity of the hydraulic oil cylinder by setting the pressure of an electro-hydraulic proportional overflow valve in the hydraulic valve block, so that the purposes of slow pressure release and adjustable pressure are achieved.
Description
Technical Field
The utility model relates to a hydraulic system technical field, in particular to hydraulic pressure slowly lets out system.
Background
The hydraulic oil cylinder is generally directly decompressed, but the speed is high, but the sealing performance and the like of the oil cylinder are damaged by the caused impact; and cannot meet the requirements of all operating conditions.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydraulic pressure slowly lets out system to the impact that solves the direct pressure release of current hydraulic system and produce has certain harm to the leakproofness of hydro-cylinder itself, and can not satisfy the problem of all operating mode demands.
In order to solve the technical problem, the utility model provides a hydraulic slow-release system, which comprises an oil tank, a hydraulic oil pump, a hydraulic valve block and a hydraulic oil cylinder;
the oil tank, the hydraulic oil pump and the hydraulic valve block are communicated in sequence through pipelines to form a loop;
the rod cavity and the rodless cavity of the hydraulic oil cylinder are respectively communicated with the hydraulic valve block through pipelines;
an overflow valve is communicated between an oil inlet main pipeline and an oil return pipeline of the hydraulic valve block through an internal oil way of the hydraulic valve block, and the pressure of a main oil way is controlled by adjusting the overflow valve;
the hydraulic oil pump is elastically connected with the motor through the coupler and the pump sleeve, the motor is electrified and then rotates to drive the hydraulic oil pump to rotate, and hydraulic oil is sucked out of the oil tank and then is pressurized and conveyed to the hydraulic valve block.
Optionally, the hydraulic valve block, the electromagnetic directional valve, the hydraulic control one-way valve, the pressure relay, the electromagnetic valve and the electro-hydraulic proportional overflow valve form a control module.
Optionally, an input port of the electromagnetic directional valve is communicated with an oil inlet main pipeline, a first output port and a second output port are respectively communicated with a rod cavity and a rodless cavity of the hydraulic oil cylinder through pipelines, and the reciprocating motion of the hydraulic oil cylinder is realized through the conduction of the first output port or the conduction of the second output port.
Optionally, one end of the hydraulic control one-way valve is communicated with the second output port of the electromagnetic directional valve, and the other end of the hydraulic control one-way valve is communicated with the rodless cavity of the hydraulic oil cylinder.
Optionally, the pressure relay is communicated with a rodless cavity of the hydraulic oil cylinder, and the pressure of the rodless cavity of the hydraulic oil cylinder is observed, so that subsequent slow-release adjustment is facilitated;
one end of the electromagnetic valve is communicated with an oil way of the pressure relay, the other end of the electromagnetic valve is communicated with the electro-hydraulic proportional overflow valve, and the electromagnetic valve plays a pressure maintaining role;
one end of the electro-hydraulic proportional overflow valve is communicated with the electromagnetic valve, the other end of the electro-hydraulic proportional overflow valve is communicated with the oil return pipeline, and the pressure of the rodless cavity of the hydraulic oil cylinder is controlled by setting the pressure of the electro-hydraulic proportional overflow valve, so that the purposes of slow pressure relief and adjustable pressure are achieved.
Optionally, a pressure gauge is installed on an oil inlet main pipeline of the hydraulic valve block, and oil pressure in the oil inlet main pipeline is observed through the pressure gauge.
Optionally, an oil return filter is installed on the oil return pipeline, and hydraulic oil flowing back to the oil tank is filtered.
Optionally, the oil inlet main pipeline is located the end in the oil tank is installed the oil absorption filter.
Optionally, a liquid level meter, a thermometer and an air filter are mounted on the oil tank.
Optionally, the oil tank is further provided with a cleaning window and an oil drain ball valve.
The utility model provides a hydraulic slow-release system, which comprises an oil tank, a hydraulic oil pump, a hydraulic valve block and a hydraulic oil cylinder; the oil tank, the hydraulic oil pump and the hydraulic valve block are communicated in sequence through pipelines to form a loop; the rod cavity and the rodless cavity of the hydraulic oil cylinder are respectively communicated with the hydraulic valve block through pipelines; an overflow valve is communicated between an oil inlet main pipeline and an oil return pipeline of the hydraulic valve block through a pipeline, and the pressure of a main oil way is controlled by adjusting the overflow valve; the hydraulic oil pump is elastically connected with the motor through the coupler and the pump sleeve, the motor is electrified and then rotates to drive the hydraulic oil pump to rotate, and hydraulic oil is sucked out of the oil tank and then is pressurized and conveyed to the hydraulic valve block. The hydraulic slow-release system controls the pressure of a rodless cavity of the hydraulic oil cylinder by setting the pressure of an electro-hydraulic proportional overflow valve in the hydraulic valve block, so that the purposes of slow pressure release and adjustable pressure are achieved.
Drawings
Fig. 1 is a schematic diagram of a hydraulic pressure slow-relief system provided by the utility model.
Detailed Description
The hydraulic pressure slow-releasing system provided by the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Example one
The utility model provides a hydraulic slow-release system, the structure of which is shown in figure 1 and comprises an oil tank 1, a hydraulic oil pump 2, a hydraulic valve block 3 and a hydraulic oil cylinder 4; the oil tank 1, the hydraulic oil pump 2 and the hydraulic valve block 3 are communicated in sequence through pipelines to form a loop; a rod cavity and a rodless cavity of the hydraulic oil cylinder 4 are respectively communicated with the hydraulic valve block 3 through pipelines; an overflow valve 5 is communicated between an oil inlet main pipeline and an oil return pipeline of the hydraulic valve block 3 through an internal oil way of the hydraulic valve block 3, and the pressure of a main oil way is controlled by adjusting the overflow valve 5; the hydraulic oil pump 2 is elastically connected with the motor 6 through the coupler and the pump sleeve, the motor 6 is electrified and then rotates to drive the hydraulic oil pump 2 to rotate, and hydraulic oil is sucked out of the oil tank 1 and then is pressurized and conveyed to the hydraulic valve block 3.
Specifically, the hydraulic valve block 3, the electromagnetic directional valve 7, the hydraulic control one-way valve 8, the pressure relay 9, the electromagnetic valve 10 and the electro-hydraulic proportional overflow valve 11 form a control module; an input port of the electromagnetic directional valve 7 is communicated with an oil inlet main pipeline, a first output port and a second output port are respectively communicated with a rod cavity and a rodless cavity of the hydraulic oil cylinder 4 through pipelines, and the reciprocating motion of the hydraulic oil cylinder 4 is realized through the conduction of the first output port or the conduction of the second output port; one end of the hydraulic control one-way valve 8 is communicated with the second output port of the electromagnetic directional valve 7, and the other end of the hydraulic control one-way valve is communicated with a rodless cavity of the hydraulic oil cylinder 4; the pressure relay 9 is communicated with the rodless cavity of the hydraulic oil cylinder 4, and subsequent slow relief adjustment is facilitated by observing the pressure of the rodless cavity of the hydraulic oil cylinder 4; one end of the electromagnetic valve 10 is communicated with an oil way of the pressure relay 9, the other end of the electromagnetic valve is communicated with the electro-hydraulic proportional overflow valve 11, and the electromagnetic valve 10 plays a pressure maintaining role; one end of the electro-hydraulic proportional overflow valve 11 is communicated with the electromagnetic valve 10, the other end of the electro-hydraulic proportional overflow valve is communicated with the oil return pipeline, and the pressure of the rodless cavity of the hydraulic oil cylinder 4 is controlled by setting the pressure of the electro-hydraulic proportional overflow valve 11, so that the purposes of slow pressure relief and adjustable pressure are achieved.
Specifically, a pressure gauge 12 is installed on an oil inlet main pipeline of the hydraulic valve block 3, oil pressure in the oil inlet main pipeline is observed through the pressure gauge 12, a pressure switch is further arranged on a pipeline close to the pressure gauge 12, and the pressure gauge 12 can be overhauled by opening and closing the pressure switch; an oil return filter 13 is arranged on the oil return pipeline and is used for filtering the hydraulic oil flowing back to the oil tank 1 so as to prevent impurities from flowing back to the oil tank 1 along with the hydraulic oil; the tail end of the oil inlet main pipeline, which is positioned in the oil tank 1, is provided with an oil absorption filter 14, and the oil absorption filter 14 is arranged in the oil tank 1 and is generally 3-5 cm away from the bottom; the oil absorption filter 14 is used for filtering hydraulic oil, and avoiding the damage of impurities contained in the hydraulic oil sucked into the pipeline to other hydraulic components; a liquid level meter 15, a thermometer 16 and an air filter 17 are arranged on the oil tank 1; the liquid level meter 15 is arranged on the side surface of the oil tank 1 and is used for observing the oil quantity in the oil tank 1 so as to fill oil in time; the thermometer 16 is arranged at the upper end of the oil tank 1, and the temperature measuring end of the thermometer is not required to be immersed in hydraulic oil and is used for observing the oil temperature, so that other components and parts are prevented from being damaged due to overhigh or overlow oil temperature and the performance of a hydraulic station is prevented from being influenced; the air filter 17 is arranged at the top of the oil tank 1 and has the functions of balancing the pressure inside and outside the oil tank 1 on one hand and filtering hydraulic oil and air entering the oil tank 1 on the other hand so as to avoid pollution; the oil tank 1 is also provided with a cleaning window 18 and an oil drain ball valve 19, and the interior of the oil tank 1 can be cleaned after the cleaning window 18 is opened; the oil drain ball valve 19 is installed below the side of the oil tank 1, and hydraulic oil can be drained from the inside of the oil tank 1 by opening the oil drain ball valve 19 when necessary.
Specifically, when the hydraulic slow-release system works, the motor 6 drives the hydraulic oil pump 2 to rotate, the hydraulic oil pump 2 generates negative pressure, oil in the oil tank 1 is filtered by the oil absorption filter 14 and then sucked out of the oil inlet main pipeline, the oil enters the hydraulic valve block 3, the hydraulic valve block 3 controls the pressure of a main oil circuit through the overflow valve 5, and when the pressure is greater than a set pressure, the pressure is released through the overflow valve 5; the hydraulic oil of the main oil way passes through the electromagnetic directional valve 7, and a first output port of the electromagnetic directional valve 7 is connected with a rod cavity of the hydraulic oil cylinder 4 through a pipeline; the second output port is connected with the rodless cavity of the hydraulic oil cylinder 4 through a pipeline; when the left side of the electromagnetic directional valve 7 is electrified, the hydraulic oil cylinder 4 is in an extending state at the moment, after the electromagnetic valve 10 is electrified, hydraulic oil can be directly communicated with the electro-hydraulic proportional overflow valve 11, the pressure of a rodless cavity of the hydraulic oil cylinder 4 can be adjusted within the pressure adjusting range of the electro-hydraulic proportional overflow valve 11, and therefore the rodless cavity is slowly decompressed; when the right side of the electromagnetic directional valve 7 is electrified, the hydraulic oil cylinder 4 retracts, and the hydraulic oil in the rodless cavity returns to the oil tank 1 through a pipeline, the hydraulic control one-way valve 8, the electromagnetic directional valve 7 and the oil return filter 13, so that the quick pressure relief of the common oil cylinder can be realized. Two pressure relief modes are freely selected to meet the requirements of all working conditions.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (10)
1. A hydraulic slow relief system, comprising: the hydraulic oil pump comprises an oil tank (1), a hydraulic oil pump (2), a hydraulic valve block (3) and a hydraulic oil cylinder (4);
the oil tank (1), the hydraulic oil pump (2) and the hydraulic valve block (3) are communicated in sequence through pipelines to form a loop;
a rod cavity and a rodless cavity of the hydraulic oil cylinder (4) are respectively communicated with the hydraulic valve block (3) through pipelines;
an overflow valve (5) is communicated between an oil inlet main pipeline and an oil return pipeline of the hydraulic valve block (3) through an internal oil way of the hydraulic valve block (3), and the pressure of a main oil way is controlled by adjusting the overflow valve (5);
hydraulic oil pump (2) are in the same place through shaft coupling and pump housing and motor (6) elastic connection, motor (6) circular telegram back rotates and drives hydraulic oil pump (2) rotate, follow hydraulic oil suction back pressurization in oil tank (1) is carried to hydraulic valve piece (3).
2. The hydraulic slow relief system as claimed in claim 1, wherein the hydraulic valve block (3), the electromagnetic directional valve (7), the hydraulic control one-way valve (8), the pressure relay (9), the electromagnetic valve (10) and the electro-hydraulic proportional relief valve (11) form a control module.
3. The hydraulic slow-release system as claimed in claim 2, wherein an input port of the electromagnetic directional valve (7) is communicated with a main oil inlet pipe, a first output port and a second output port are respectively communicated with a rod cavity and a rodless cavity of the hydraulic oil cylinder (4) through pipes, and the reciprocating motion of the hydraulic oil cylinder (4) is realized by the conduction of the first output port or the conduction of the second output port.
4. A hydraulic slow relief system as claimed in claim 3, characterized in that one end of said pilot operated check valve (8) is in communication with said second outlet port of said electromagnetic directional valve (7), and the other end is in communication with a rodless cavity of said hydraulic ram (4).
5. A hydraulic slow relief system according to claim 2, characterized in that said pressure relay (9) is in communication with the rodless chamber of said hydraulic ram (4) for observing the pressure in the rodless chamber of said hydraulic ram (4) for subsequent slow relief adjustment;
one end of the electromagnetic valve (10) is communicated with an oil way of the pressure relay (9), the other end of the electromagnetic valve is communicated with the electro-hydraulic proportional overflow valve (11), and the electromagnetic valve (10) plays a pressure maintaining role;
one end of the electro-hydraulic proportional overflow valve (11) is communicated with the electromagnetic valve (10), the other end of the electro-hydraulic proportional overflow valve is communicated with the oil return pipeline, and the pressure of a rodless cavity of the hydraulic oil cylinder (4) is controlled by setting the pressure of the electro-hydraulic proportional overflow valve (11), so that the purposes of slow pressure relief and adjustable pressure are achieved.
6. The hydraulic slow release system as claimed in claim 1, wherein a pressure gauge (12) is mounted on a main oil inlet pipe of the hydraulic valve block (3), and oil pressure in the main oil inlet pipe is observed through the pressure gauge (12).
7. A hydraulic slow relief system according to claim 1, characterized in that said return line is provided with a return filter (13) for filtering the hydraulic oil flowing back to said tank (1).
8. A hydraulic slow relief system as claimed in claim 1, characterized in that the end of the main oil inlet pipe located in the oil tank (1) is provided with an oil absorption filter (14).
9. A hydraulic slow relief system according to claim 1, characterized in that said tank (1) is equipped with a level gauge (15), a thermometer (16) and an air filter (17).
10. A hydraulic slow relief system according to claim 1, characterized in that said tank (1) is further provided with a cleaning window (18) and a drain ball valve (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120030458.7U CN214247829U (en) | 2021-01-06 | 2021-01-06 | Hydraulic slow-release system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120030458.7U CN214247829U (en) | 2021-01-06 | 2021-01-06 | Hydraulic slow-release system |
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| Publication Number | Publication Date |
|---|---|
| CN214247829U true CN214247829U (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120030458.7U Active CN214247829U (en) | 2021-01-06 | 2021-01-06 | Hydraulic slow-release system |
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| CN (1) | CN214247829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198368A (en) * | 2021-11-22 | 2022-03-18 | 东方电气集团科学技术研究院有限公司 | Control method of ultrahigh-pressure stretching pump station |
-
2021
- 2021-01-06 CN CN202120030458.7U patent/CN214247829U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198368A (en) * | 2021-11-22 | 2022-03-18 | 东方电气集团科学技术研究院有限公司 | Control method of ultrahigh-pressure stretching pump station |
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