CN218717799U - Hydraulic system with pressure stabilizing cylinder - Google Patents
Hydraulic system with pressure stabilizing cylinder Download PDFInfo
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- CN218717799U CN218717799U CN202222926375.3U CN202222926375U CN218717799U CN 218717799 U CN218717799 U CN 218717799U CN 202222926375 U CN202222926375 U CN 202222926375U CN 218717799 U CN218717799 U CN 218717799U
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Abstract
The utility model discloses a take hydraulic system of surge cylinder relates to novel hydraulic system and improves technical field. The system comprises an oil tank, an oil pump, a bypass valve, a filter, a proportional flow valve, a high-pressure valve, an oil rail, a pressure stabilizing cylinder and a one-way valve; the oil pump and the bypass valve are respectively connected with the oil tank and are connected in parallel between the oil tank and the filter; the filter is connected with the proportional flow valve; the proportional flow valve is connected with the high-pressure valve; the high-pressure valve is connected with the oil rail; the oil rail is connected with steady voltage jar and check valve, and the quantity of check valve is two at least. In the hydraulic system, the pressure stabilizing cylinder and the one-way valve are arranged corresponding to the position of the oil rail, so that in the working process, the pressure stabilizing cylinder can receive part of media conveyed by the oil rail, the pressure fluctuation generated in the hydraulic cylinder is partially shared by the pressure stabilizing cylinder, and the working stability of the oil rail is improved.
Description
Technical Field
The utility model discloses hydraulic system improves technical field, in particular to take hydraulic system of steady jar.
Background
The hydraulic system is a system for increasing the acting force of the device by changing the pressure of liquid, and is widely applied to industrial equipment. Hydraulic systems are classified in various ways and are complex in type.
In the related art, oil pumps with different working pressures are usually configured in a hydraulic system, and working fluid enters an oil rail to perform the overall pressurization work of the hydraulic system in a multi-stage oil pump working mode.
However, in the related art, the rail connected to the high-pressure pump is affected by the timing and frequency of plunger oil pumping and injector oil injection during operation, and the pressure fluctuation in the rail is large and difficult to control.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a hydraulic system with take steady voltage jar can improve the job stabilization nature of oil rail. The hydraulic system with the pressure stabilizing cylinder comprises an oil tank, an oil pump, a bypass valve, a filter, a proportional flow valve, a high-pressure valve, an oil rail, the pressure stabilizing cylinder and a one-way valve;
the oil pump and the bypass valve are respectively connected with the oil tank and are connected in parallel between the oil tank and the filter;
the filter is connected with the proportional flow valve;
the proportional flow valve is connected with the high-pressure valve;
the high-pressure valve is connected with the oil rail;
the oil rail is connected with steady voltage jar and check valve, and the quantity of check valve is two at least.
In an alternative embodiment, the pressure stabilizing cylinder comprises a cylinder body, a pressure stabilizing spring, a pressure stabilizing piston and a pressure stabilizing piston sleeve;
the pressure stabilizing spring and the pressure stabilizing piston are positioned in the cylinder body;
the pressure stabilizing piston sleeve is positioned at the bottom of the cylinder body;
the pressure stabilizing piston sleeve is nested and connected with the pressure stabilizing piston;
the pressure stabilizing spring is positioned above the inner part of the cylinder body and is connected with the pressure stabilizing piston;
the cylinder body has at least two openings.
In an optional embodiment, the top of the pressure stabilizing cylinder is provided with an oil outlet, and the bottom of the pressure stabilizing cylinder is provided with an oil inlet.
In an alternative embodiment, the pressure stabilizer piston sleeve is threadedly connected to the cylinder block.
In an alternative embodiment, the range of movement of the pressure-stabilizing piston is dependent on the stroke of the pressure-stabilizing spring.
The utility model provides a beneficial effect that technical scheme brought includes at least:
in the hydraulic system, the pressure stabilizing cylinder and the one-way valve are arranged corresponding to the position of the oil rail, so that in the working process, the pressure stabilizing cylinder can partially receive partial media conveyed by the oil rail, the pressure fluctuation generated in the hydraulic cylinder is partially shared by the pressure stabilizing cylinder, and the working stability of the oil rail is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.
Fig. 1 shows a schematic structural diagram of a hydraulic system with a pressure stabilizing cylinder according to an exemplary embodiment of the present application.
Fig. 2 shows a schematic structural diagram of a pressure stabilizing cylinder according to an exemplary embodiment of the present application.
Fig. 3 shows a schematic oil path direction diagram of a pressure stabilizing cylinder according to an exemplary embodiment of the present application.
The reference numbers in the drawings are as follows:
1-an oil tank, 2-an oil pump, 3-a bypass valve, 4-a filter, 5-a proportional flow valve, 6-a high-pressure valve, 7-an oil rail, 8-a stable pressure cylinder and 9-a one-way valve;
81-cylinder body, 82-pressure stabilizing spring, 83-pressure stabilizing piston and 84-pressure stabilizing piston sleeve;
101-oil inlet hole, 102-oil storage cavity, 103-gap, 104-upper surface, 105-oil cavity and 106-oil outlet hole.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of a hydraulic system with a pressure stabilizing cylinder 8 according to an exemplary embodiment of the present application, please refer to fig. 1, where the hydraulic system with the pressure stabilizing cylinder 8 includes an oil tank 1, an oil pump 2, a bypass valve 3, a filter 4, a proportional flow valve 5, a high-pressure valve 6, an oil rail 7, a pressure stabilizing cylinder 8, and a check valve 9; the oil pump 2 and the bypass valve 3 are respectively connected with the oil tank 1 and are connected in parallel between the oil tank 1 and the filter 4; the filter 4 is connected with a proportional flow valve 5; the proportional flow valve 5 is connected with the high-pressure valve 6; the high-pressure valve 6 is connected with the oil rail 7; the oil rail 7 is connected with the stable pressure cylinder 8 and the one-way valves 9, and the number of the one-way valves 9 is at least two.
Optionally, the oil pump 2 of the embodiment of the present application is the oil pump 2 with a relatively low pressure. The low-pressure oil pump 2 is combined with the oil tank 1 to constitute a pressure supply portion of the hydraulic system. In this case, the oil pump 2 is connected with the filter 4, the bypass valve 3 is connected with the oil pump 2 in parallel, the filter 4 primarily filters the working medium taken out of the oil tank 1, and the working medium finally enters the oil rail 7 through the adjustment control of the proportional flow valve 5 and the transmission of the high-pressure valve 6, and the working medium and the pressure are output to the working equipment through the one-way valve 9.
In this case, the check valve 9 connected to the surge tank 8 is provided. The pressure stabilizing cylinder 8 can convert the influence of the oil pumping time and frequency of the plunger piston and the oil injection of the injector in the oil rail 7 into potential energy for storage in the working process of the oil rail 7, so that the pressure in the oil rail 7 cannot generate overlarge fluctuation in the working process.
It should be noted that, in the embodiment of the present application, only the oil pump 2 and the oil tank 1 are named for the in-system devices that store the working medium and control the delivery of the working medium, and during the actual use, the present application does not limit the specific type of the working medium used by the hydraulic system.
In the present embodiment, the number of the check valves 9 is 2.
To sum up, the hydraulic system with the pressure stabilizing cylinder 8 provided by the embodiment of the present application, in the hydraulic system, the setting of the pressure stabilizing cylinder 8 and the check valve 9 is performed corresponding to the position of the oil rail 7, so that in the working process, the pressure stabilizing cylinder 8 can partially receive the partial medium conveyed by the oil rail 7, the pressure fluctuation generated in the hydraulic cylinder is partially shared by the pressure stabilizing cylinder 8, and the working stability of the oil rail 7 is improved.
Next, a specific structure of the pressure-stabilizing cylinder 8 in the hydraulic system with the pressure-stabilizing cylinder 8 described in the embodiment of the present application will be described:
in an exemplary embodiment of the present application, referring to fig. 2, the pressure-stabilizing cylinder 8 includes a cylinder body 81, a pressure-stabilizing spring 82, a pressure-stabilizing piston 83, and a pressure-stabilizing piston bush 84. The pressure stabilizing spring 82 and the pressure stabilizing piston 83 are located inside the cylinder 81, the pressure stabilizing piston sleeve 84 is located at the bottom of the cylinder 81, and the pressure stabilizing piston 83 reciprocates in the pressure stabilizing piston sleeve 84. The pressure stabilizing spring 82 is located above the inside of the cylinder 81 and is connected to the pressure stabilizing piston 83. The cylinder 81 has at least two openings. Alternatively, the pressure stabilization piston 83 and the pressure stabilization piston sleeve 84 are formed as a couple.
In the present embodiment, the pressure stabilizing spring 82, the pressure stabilizing piston 83 and the pressure stabilizing piston sleeve 84 are all located inside the cylinder body 81 of the pressure stabilizing cylinder 8, and the pressure stabilizing piston sleeve 84 is used for sleeving the pressure stabilizing piston 83 when the pressure stabilizing cylinder is at rest. At least two openings in the cylinder 81 are used to receive and/or discharge the working fluid in the system.
Optionally, the top of the pressure stabilizing cylinder 8 has an oil outlet 106, and the bottom of the pressure stabilizing cylinder 8 has an oil inlet 101. The oil inlet hole 101 is opposite to the oil outlet hole 106, and in one example, the oil inlet hole 101 is used for receiving the working medium output by the oil rail 7.
Optionally, the pressure stabilizing piston sleeve 84 is threadedly connected to the cylinder 81. The actual connection form of the pressure-stabilizing piston sleeve 84 and the cylinder 81 is not limited in the present application.
Alternatively, the movement range of the pressure stabilization piston 83 depends on the stroke of the pressure stabilization spring 82. In this case, the operating range of the surge tank 8 is constant due to spring installation and process limitations, and only pressure fluctuations of a relatively high oil pressure can be stabilized, but pressure fluctuations of a relatively low oil pressure are not effective.
Referring to fig. 3, the oil path of a structure of the pressure stabilizing cylinder 8 is exemplarily shown. An oil inlet hole 101 is formed in the lower side of the pressure stabilizing piston sleeve 84, and the upper surface 104 of the pressure stabilizing piston sleeve 84 serves as a mechanical limit for the pressure stabilizing piston 83. An oil reservoir chamber 102 is formed between the stabilizer piston 83 and the stabilizer piston bush 84. The surge spring 82 is fixed to the end surface of the cylinder block 81 to form an oil chamber 105. When the pressure stabilizing piston 83 is pressed by the pressure stabilizing spring 82, the clearance 103 between the pressure stabilizing piston 83 and the pressure stabilizing piston bush 84 leaks the hydraulic oil, and flows out through the oil outlet hole 106.
The above description is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. The hydraulic system with the pressure stabilizing cylinder is characterized by comprising an oil tank (1), an oil pump (2), a bypass valve (3), a filter (4), a proportional flow valve (5), a high-pressure valve (6), an oil rail (7), a pressure stabilizing cylinder (8) and a one-way valve (9);
the oil pump (2) and the bypass valve (3) are respectively connected with the oil tank (1) and are connected in parallel between the oil tank (1) and the filter (4);
the filter (4) is connected with the proportional flow valve (5);
the proportional flow valve (5) is connected with the high-pressure valve (6);
the high-pressure valve (6) is connected with the oil rail (7);
the oil rail (7) is connected with the stable pressure cylinder (8) and the one-way valves (9), and the number of the one-way valves (9) is at least two.
2. The hydraulic system with a surge cylinder according to claim 1, characterized in that the surge cylinder (8) comprises a cylinder body (81), a surge spring (82), a surge piston (83) and a surge piston sleeve (84);
the pressure stabilizing spring (82) and the pressure stabilizing piston (83) are positioned inside the cylinder body (81);
the pressure stabilizing piston sleeve (84) is positioned at the bottom of the cylinder body (81);
the pressure stabilizing piston (83) can reciprocate in the pressure stabilizing piston sleeve (84);
the pressure stabilizing spring (82) is positioned above the inner part of the cylinder body (81) and is connected with the pressure stabilizing piston (83);
the cylinder (81) has at least two openings.
3. The hydraulic system with a surge tank, according to claim 2, characterized in that the top of the surge tank has an oil outlet hole (106) and the bottom of the surge tank has an oil inlet hole (101).
4. The hydraulic system with a stabilizer cylinder according to claim 2, characterized in that the stabilizer piston sleeve (84) is screwed to the cylinder block (81).
5. The hydraulic system with a surge cylinder according to claim 2, characterized in that the range of motion of the surge piston (83) depends on the stroke of the surge spring (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222926375.3U CN218717799U (en) | 2022-11-03 | 2022-11-03 | Hydraulic system with pressure stabilizing cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222926375.3U CN218717799U (en) | 2022-11-03 | 2022-11-03 | Hydraulic system with pressure stabilizing cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218717799U true CN218717799U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222926375.3U Active CN218717799U (en) | 2022-11-03 | 2022-11-03 | Hydraulic system with pressure stabilizing cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218717799U (en) |
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2022
- 2022-11-03 CN CN202222926375.3U patent/CN218717799U/en active Active
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