Hydraulic capacity increasing device for prolonging pressure maintaining duration

Abstract

The utility model discloses a hydraulic capacity increasing device for prolonging pressure maintaining duration, which comprises a hydraulic capacity increasing cylinder assembly, an oil conveying joint assembly and an oil discharge adjusting assembly, an oil discharge adjusting assembly is arranged at the upper end of the hydraulic capacity increasing cylinder assembly; an oil conveying joint assembly is arranged at the lower end of the hydraulic capacity increasing cylinder assembly; the hydraulic capacity increasing cylinder assembly comprises a cylinder body; a spring moving cavity is formed in the cylinder body; hydraulic oil compensation cavities are formed in the lower ends of the spring moving cavities; and a pressurizing spring is arranged in the spring moving cavity. Hydraulic oil stored in the hydraulic oil compensation cavity is squeezed into a decompression hydraulic system through resilience force of the pressurizing spring for hydraulic oil supplementation, the decompression speed of hydraulic power output equipment is effectively relieved, follow-up first-aid repair is facilitated, hydraulic stability of the system is kept, and safety of the hydraulic system is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic pressure boosting equipment, and in particular to a hydraulic pressure boosting equipment for extending the pressure holding time. Background Technology

[0002] Pressure loss and oil leakage in hydraulic systems are common and serious malfunctions, often caused by aging and wear of seals, loose pipe joints, cracks in component housings, etc. When hydraulic oil leaks through the damaged parts, the internal pressure of the system drops sharply, disrupting the original power transmission balance.

[0003] Existing hydraulic systems often lack efficient real-time oil replenishment mechanisms in their design. On the one hand, most systems are not equipped with precision sensors that monitor oil leaks in real time, making it difficult to quickly locate the fault point in the early stages of leakage. On the other hand, oil replenishment devices usually require manual operation, and the replenishment of hydraulic oil must strictly follow processes such as venting and filtration, which cannot be completed quickly while the equipment is running. This lag in oil replenishment can directly lead to the failure of power output equipment. For example, the hydraulic motor of construction machinery will suddenly stop running after losing pressure, and the hydraulic cylinder of lifting equipment will be unable to maintain the load due to insufficient oil, which will lead to work stoppage, equipment damage, or even safety accidents. Especially in industrial scenarios with continuous production, the power interruption caused by the loss of pressure in the hydraulic system may paralyze the entire production line, resulting in significant economic losses. Utility Model Content

[0004] In order to overcome the problem that in existing hydraulic systems, when hydraulic oil leaks and loses pressure due to malfunctions, it is often difficult to replenish the hydraulic oil in time, which causes the power output equipment of the hydraulic system to fail, this utility model provides a hydraulic pressure booster for extending the pressure holding time.

[0005] The technical solution is as follows: A hydraulic expansion vessel for extending the pressure holding time includes a hydraulic expansion cylinder assembly, an oil supply connector assembly, and an oil discharge adjustment assembly; the upper end of the hydraulic expansion cylinder assembly is provided with the oil discharge adjustment assembly; the lower end of the hydraulic expansion cylinder assembly is provided with the oil supply connector assembly; the hydraulic expansion cylinder assembly includes a cylinder body; the inside of the cylinder body is provided with a spring movable cavity, and the spring movable cavity is integrally formed with the cylinder body; the lower end of the spring movable cavity is provided with a hydraulic oil compensation cavity, and the hydraulic oil compensation cavity is integrally formed with the cylinder body; a pressure boosting spring is provided inside the spring movable cavity; a second spring baffle is provided at the lower end of the pressure boosting spring; a piston rod is provided at the lower end of the second spring baffle; a first spring baffle is provided at the upper end of the pressure boosting spring; an adjusting screw is provided at the upper end of the cylinder body; an oil inlet baffle is provided below the piston rod; a connecting connector is provided inside the oil inlet baffle.

[0006] Furthermore, the piston rod is fixedly connected to the second spring baffle, and the piston rod is arranged to move along the inside of the hydraulic oil compensation chamber, and the piston rod is located inside the hydraulic oil compensation chamber.

[0007] Further, the first spring block and the second spring block are internally provided with air holes vertically penetrating the first spring block and the second spring block.

[0008] Further, the cylinder is fixedly connected with the oil inlet block, and the oil inlet block is fixedly connected with the connecting joint.

[0009] Further, the connecting joint is internally provided with oil delivery pipelines which are integrally formed with the interior of the connecting joint and are provided with two groups, and the oil delivery pipelines are in communication with the interior of the hydraulic oil compensation cavity.

[0010] Further, the adjusting screw is threadedly connected with the cylinder, and the lower end of the adjusting screw is fixedly connected with the upper end surface center of the first spring block.

[0011] Further, when the interior of the hydraulic oil compensation cavity is filled with hydraulic oil, the booster spring is in a compressed state.

[0012] The hydraulic oil in the hydraulic oil compensation cavity is compressed downward by the booster spring, and the hydraulic oil in the hydraulic oil compensation cavity is input into the hydraulic power output device through the oil delivery pipeline, so that the oil pressure in the hydraulic power output device is supplemented, the pressure relief speed of the hydraulic power output device is effectively alleviated, the subsequent repair is facilitated, the system hydraulic pressure is kept stable, and the safety of the hydraulic system is improved.

[0013] When the hydraulic oil in the hydraulic oil compensation cavity needs to be completely discharged for maintenance, the first spring block is pressed downward by rotating the adjusting screw, the second spring block at the lower end of the booster spring and the piston rod are moved downward, and the hydraulic oil stored in the piston rod is discharged from the oil delivery pipeline, so that the complete discharge function of the hydraulic oil is realized, and the maintenance convenience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall rear-view three-dimensional structure of this utility model;

[0016] Figure 3 This is a three-dimensional cross-sectional view of the present invention.

[0017] Figure 4 This is a three-dimensional structural diagram of the cylinder body of this utility model;

[0018] Figure 5 This is a cross-sectional perspective view of the oil delivery connector assembly of this utility model.

[0019] In the attached drawings: 1. Hydraulic expansion cylinder assembly; 2. Oil supply connector assembly; 3. Oil discharge adjustment assembly; 101. Cylinder body; 102. Spring movable chamber; 103. Hydraulic oil compensation chamber; 104. Second spring baffle; 105. Piston rod; 106. Pressure boosting spring; 201. Connecting connector; 202. Oil inlet baffle; 203. Oil supply pipeline; 301. Adjusting screw; 302. First spring baffle. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-5 As shown, a hydraulic expansion vessel for extending the pressure holding time includes a hydraulic expansion cylinder assembly 1, an oil supply connector assembly 2, and an oil discharge regulating assembly 3. The upper end of the hydraulic expansion cylinder assembly 1 is provided with the oil discharge regulating assembly 3; the lower end of the hydraulic expansion cylinder assembly 1 is provided with the oil supply connector assembly 2; the hydraulic expansion cylinder assembly 1 includes a cylinder body 101; a spring movable cavity 102 is provided inside the cylinder body 101, and the spring movable cavity 102 is integrally formed with the cylinder body 101; a hydraulic oil compensation cavity 1 is provided at the lower end of the spring movable cavity 102. 03, and the hydraulic oil compensation chamber 103 is integrally formed with the cylinder body 101; a pressure boosting spring 106 is provided inside the spring movable chamber 102; a second spring baffle 104 is provided at the lower end of the pressure boosting spring 106; a piston rod 105 is provided at the lower end of the second spring baffle 104; a first spring baffle 302 is provided at the upper end of the pressure boosting spring 106; an adjusting screw 301 is provided at the upper end of the cylinder body 101; an oil inlet baffle 202 is provided below the piston rod 105; a connecting joint 201 is provided inside the oil inlet baffle 202.

[0023] The piston rod 105 is fixedly connected to the second spring baffle 104, and the piston rod 105 is arranged to move along the inside of the hydraulic oil compensation chamber 103, and the piston rod 105 is located inside the hydraulic oil compensation chamber 103.

[0024] Both the first spring baffle 302 and the second spring baffle 104 have ventilation holes inside, and the ventilation holes are vertically connected through the first spring baffle 302 and the second spring baffle 104.

[0025] The cylinder block 101 is fixedly connected to the oil inlet baffle 202; the oil inlet baffle 202 is fixedly connected to the connecting joint 201.

[0026] The connecting joint 201 is provided with an oil supply line 203, and the oil supply line 203 is integrally formed with the interior of the connecting joint 201. There are two sets of oil supply lines 203. The oil supply line 203 is connected to the interior of the hydraulic oil compensation chamber 103.

[0027] When hydraulic oil is filled into the hydraulic oil compensation chamber 103, the pressure boosting spring 106 is in a compressed state.

[0028] By inputting hydraulic oil from the external hydraulic system into the hydraulic oil compensation chamber 103 through the oil supply line 203, and then outputting it to the hydraulic power output device through another set of oil supply lines 203, this utility model, connected in series with the hydraulic system, injects hydraulic oil into the hydraulic oil compensation chamber 103. Due to the hydraulic action, the piston rod 105 is pushed upward by the hydraulic oil, and the piston rod 105 and the second spring baffle 104 move upward. At this time, the booster spring 106 is compressed by the thrust of the second spring baffle 104. When the hydraulic pressure inside the hydraulic oil compensation chamber 103 tends to be in equilibrium, the booster spring 106 and the second spring baffle 104... The spring baffle 104 and piston rod 105 remain stationary. When the external hydraulic power output device malfunctions, causing a sudden loss of hydraulic oil pressure in the system, the hydraulic pressure inside the hydraulic oil compensation chamber 103 is greater than the oil pressure in the hydraulic system. This causes the hydraulic oil inside the hydraulic oil compensation chamber 103 to be pushed downward by the reset booster spring 106. As a result, the hydraulic oil stored in the compensation chamber 103 is input along the oil supply line 203 to the depressurized hydraulic power output device to replenish the missing oil pressure. This effectively alleviates the rate of pressure loss of the hydraulic power output device, facilitates subsequent emergency repairs, maintains system hydraulic stability, and improves the safety of the hydraulic system.

[0029] Example 2

[0030] Based on Example 1, such as Figures 1-5 As shown, the adjusting screw 301 is threadedly connected to the cylinder body 101, and the lower end of the adjusting screw 301 is fixedly connected to the center of the upper end face of the first spring baffle 302.

[0031] By setting of the oil discharge adjusting assembly 3, when the hydraulic oil in the utility model needs to be completely discharged for maintenance, only the adjusting screw rod 301 is rotated to drive the first spring check piece 302 to press the booster spring 106 downward, and then the second spring check piece 104 and the piston rod 105 at the lower end of the booster spring 106 are moved downward, and then the hydraulic oil stored in the piston rod 105 is discharged from the oil pipeline 203, so that the complete discharge function of the hydraulic oil is realized, and the maintenance convenience is improved.

Claims

1. A hydraulic intensifier for prolonging the pressure maintaining duration, comprising a hydraulic intensifier cylinder assembly (1), characterized in that: The oil delivery joint assembly (2) and the oil discharge adjusting assembly (3) are further included; the upper end of the hydraulic capacity-increasing cylinder assembly (1) is provided with the oil discharge adjusting assembly (3); the lower end of the hydraulic capacity-increasing cylinder assembly (1) is provided with the oil delivery joint assembly (2); the hydraulic capacity-increasing cylinder assembly (1) includes the cylinder body (101); the inside of the cylinder body (101) is provided with the spring movable cavity (102), and the spring movable cavity (102) is integrally formed with the cylinder body (101); the lower end of the spring movable cavity (102) is provided with the hydraulic oil compensation cavity (103), and the hydraulic oil compensation cavity (103) is integrally formed with the cylinder body (101); the inside of the spring movable cavity (102) is provided with the pressure-increasing spring (106); the lower end of the pressure-increasing spring (106) is provided with the second spring baffle (104); the lower end of the second spring baffle (104) is provided with the piston rod (105); the upper end of the pressure-increasing spring (106) is provided with the first spring baffle (302); the upper end of the cylinder body (101) is provided with the adjusting screw rod (301); the lower side of the piston rod (105) is provided with the oil inlet baffle (202); the inside of the oil inlet baffle (202) is provided with the connecting joint (201).

2. The hydraulic accumulator for extending the pressure maintaining duration according to claim 1, characterized in that: The piston rod (105) is fixedly connected with the second spring baffle (104), and the piston rod (105) is arranged to move along the inside of the hydraulic oil compensation cavity (103), and the piston rod (105) is arranged in the inside of the hydraulic oil compensation cavity (103).

3. The hydraulic accumulator for extending the pressure maintaining duration according to claim 1, characterized in that: The inside of the first spring baffle (302) and the inside of the second spring baffle (104) are both provided with the air vent hole, and the air vent hole vertically penetrates the first spring baffle (302) and the second spring baffle (104).

4. The hydraulic accumulator for extending the pressure maintaining duration according to claim 1, characterized in that: The cylinder body (101) is fixedly connected with the oil inlet baffle (202); the oil inlet baffle (202) is fixedly connected with the connecting joint (201).

5. The hydraulic accumulator for extending the pressure maintaining duration according to claim 1, characterized in that: The inside of the connecting joint (201) is provided with the oil delivery pipeline (203), and the oil delivery pipeline (203) is integrally formed with the inside of the connecting joint (201), and the oil delivery pipeline (203) is provided with two groups; the oil delivery pipeline (203) is in communication with the inside of the hydraulic oil compensation cavity (103).

6. The hydraulic accumulator for extending the pressure maintaining duration according to claim 1, characterized in that: The adjusting screw rod (301) is threadedly connected with the cylinder body (101), and the lower end of the adjusting screw rod (301) is fixedly connected with the upper end surface center of the first spring baffle (302).

7. The hydraulic accumulator for extending the pressure maintaining duration according to claim 1, characterized in that: When the inside of the hydraulic oil compensation cavity (103) is filled with hydraulic oil, the pressure-increasing spring (106) is in a compressed state.

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