CN220037136U - Gas-oil balance cylinder - Google Patents
Gas-oil balance cylinder Download PDFInfo
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- CN220037136U CN220037136U CN202321528551.6U CN202321528551U CN220037136U CN 220037136 U CN220037136 U CN 220037136U CN 202321528551 U CN202321528551 U CN 202321528551U CN 220037136 U CN220037136 U CN 220037136U
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- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims description 109
- 238000004891 communication Methods 0.000 claims description 15
- 239000010720 hydraulic oil Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 5
- 229920001973 fluoroelastomer Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene ring Polymers 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 2
- 238000005192 partition Methods 0.000 claims 2
- 230000003139 buffering effect Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 206010061688 Barotrauma Diseases 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
The utility model discloses a gas-oil balance cylinder which comprises a cylinder body, wherein one end of the cylinder body is provided with an inflation valve, an exhaust electromagnetic valve is arranged below the inflation valve, one end of the cylinder body, which is far away from the inflation valve, is provided with a first oil port, the outer surface of the cylinder body longitudinally penetrates through the cylinder body and is provided with a second oil port, the middle part of the inner cavity of the cylinder body is provided with a separation block for dividing the inner cavity space of the cylinder body, the inner cavity of the cylinder body is divided into a first oil cavity, a second oil cavity and an air cavity by the separation block and a piston plate, the side end surface of the separation block is provided with a piston rod, the outer surface of the piston rod is provided with a piston plate, and the contact surfaces of the piston plate and the outer diameter surface of the piston rod and the inner diameter surface of the cylinder body are respectively provided with a Y-shaped sealing ring, a Gelai ring, a Style seal and a sealing ring. The product generates dynamic balance through the relative volumes of the second oil cavity and the air cavity, so that after the air-oil balance cylinder is installed, the same station can realize the effects of air pressure buffering and hydraulic supporting simultaneously, and the installation space is greatly saved.
Description
Technical Field
The utility model relates to the technical field of gas-liquid oil cylinder equipment, in particular to a gas-oil balance cylinder.
Background
The hydraulic cylinder is used as an important component of a hydraulic element, plays an irreplaceable role as an executing element in a hydraulic system, and the balance cylinder is pneumatic conveying equipment for lifting or lowering the weight by balancing the gravity of the weight and the pressure in the cylinder. With the rapid development of science and technology, more requirements are put on the hydraulic cylinder in the market, such as improvement of working efficiency, energy conservation, environmental protection, service life extension, automation and intellectualization of control/monitoring and various characteristics;
the existing balance cylinder is generally a balance cylinder or a balance hydraulic cylinder, and the balance cylinder balances the pressure generated by compressed gas and the energy of the piston motion to obtain a buffering effect. The balance hydraulic cylinder is used for maintaining a certain back pressure value by utilizing a hydraulic actuating element so as to balance the gravity load. The application number CN202121492273.4 discloses a hydraulic cylinder with a balance mechanism, which comprises a hydraulic cylinder platform, a hydraulic cylinder body, a hydraulic cylinder main shaft, a pressing block and a pressing block balance mechanism, wherein the hydraulic cylinder body is fixed on the hydraulic cylinder platform, and the hydraulic cylinder main shaft is arranged in the middle of the hydraulic cylinder body and performs up-and-down reciprocating motion; the pressing block is arranged at the upper end of the hydraulic cylinder main shaft and is fixedly connected with the hydraulic cylinder main shaft; the briquetting balance mechanism is arranged to be fixed at one end of the hydraulic cylinder platform, which is far away from the target object of the briquetting. A hydraulic cylinder with a balance mechanism is provided with a pressing block balance block on the opposite side of a target object, so that a pressing block is pressed down to contact with the target object and simultaneously contacts with the pressing block balance block, the main shaft of the hydraulic cylinder is uniformly stressed, and mechanical faults and execution failure of the hydraulic cylinder are reduced.
Similar to the hydraulic cylinder with a balancing mechanism described above, the following disadvantages still exist: according to the hydraulic cylinder of the device, the adjustable pressing block balance mechanism is additionally arranged on the opposite side of the target object, the pressing block balance mechanism and the target object are adjusted to be at the same height during use, the pressing block is enabled to be in contact with the pressing block balance mechanism and the target object simultaneously during pressing down, so that the main shaft of the hydraulic cylinder is enabled, but a single balance cylinder or a balance hydraulic cylinder is limited by certain working conditions, the cylinder can only provide small buffer effect and cannot provide large load pressure, the balance hydraulic cylinder can provide large load, but the flexibility is poor, the control is required to be matched with the electromagnetic valve to realize speed regulation and overload protection, and therefore a cylinder body for realizing rapid switching between the air balance cylinder and the hydraulic balance cylinder is required, and air pressure impact and hydraulic impact generated by the air balance cylinder and the hydraulic balance cylinder are prevented, so that the service life of the cylinder body is influenced.
Accordingly, in view of the above, research and improvement are made on the conventional structure and the conventional defects, and a gas-oil balance cylinder is proposed to achieve the purpose of having more practical value.
Disclosure of Invention
The utility model aims to provide a gas-oil balance cylinder so as to solve the problem of preventing the gas balance cylinder and the hydraulic balance cylinder from generating pneumatic impact and hydraulic impact in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the gas-oil balance cylinder comprises a cylinder body, one end of the cylinder body is provided with an inflation valve, an exhaust electromagnetic valve is arranged below the inflation valve, one end of the cylinder body, which is far away from the inflation valve, is provided with a first oil port, the outer surface of the cylinder body longitudinally penetrates through and is provided with a second oil port, the middle part of the inner cavity of the cylinder body is provided with an isolation block for dividing the inner cavity space of the cylinder body, the side end face of the isolation block is provided with a piston rod, the outer surface of the piston rod is provided with a piston plate, and the contact surface of the piston plate and the outer diameter surface of the piston rod and the inner diameter surface of the cylinder body is provided with a Y-shaped sealing ring, a Gelai ring, a Style seal and a sealing ring.
Further, the inner cavity of the cylinder body is divided into a first oil cavity, a second oil cavity and an air cavity through the isolation block and the piston plate, a through hole is transversely formed in the contact surface of the piston rod and the isolation block in a penetrating mode, the first oil cavity and the second oil cavity form a communication structure through the through hole, the first oil port, the second oil port, the first oil cavity and the second oil cavity form a communication structure, and a sliding structure is formed between the piston plate and the piston rod.
Further, the Y-shaped sealing ring and the Style seal are both provided with two groups, the two groups of the Style seals are arranged between the two groups of the Y-shaped sealing rings, the two groups of the Style seals are provided with a Gray ring, the outer diameter surfaces of the piston plate and the piston rod and the inner diameter surface of the cylinder body are respectively provided with a group of Gray rings, two groups of the Style seals and two groups of Y-shaped sealing rings, the outer surfaces of the Y-shaped sealing rings, the Gray rings and the Style seals are all provided with sealing rings, and a piston wear-resistant ring is arranged among the Y-shaped sealing rings, the Gray rings and the Style seals.
Furthermore, the shapes of the Gelai ring and the Style seal are rectangular, the Gelai ring and the Style seal are formed by overlapping an O-shaped ring and a polytetrafluoroethylene ring, and the Y-shaped seal ring is made of fluororubber.
Furthermore, the inflation valve and the exhaust electromagnetic valve form a communication structure through an air cavity, and one end of the piston rod is provided with a chamfer angle for assisting hydraulic oil to flow.
Further, sealing rings are arranged at edges of the inflation valve, the exhaust electromagnetic valve, the first oil port and the second oil port, an oil discharge port is arranged above the first oil port, and the oil discharge port and the first oil port form a communication structure.
Compared with the prior art, the utility model has the beneficial effects that: the product has the advantages that the relative volumes of the second oil cavity and the air cavity are dynamically balanced, so that after the air-oil balance cylinder is installed, the same station can realize the effects of air pressure buffering and hydraulic supporting simultaneously, the installation space is greatly saved, and the problems of air pressure impact and hydraulic impact generated by the air balance cylinder and the hydraulic balance cylinder are prevented;
the device divides the space of the inner cavity of the cylinder body into a first oil cavity, a second oil cavity and an air cavity through a separation block and a piston plate, wherein the second oil cavity and the air cavity are always in dynamic balance, and the total volume added by the second oil cavity and the air cavity is always unchanged;
the device changes according to the switching of air and oil in the cavity through the special structural design in the cavity, so that the device can realize the functions of air buffering and load holding simultaneously, and most importantly, when the piston rod and the piston plate move relatively, the second oil cavity and the air cavity are isolated by arranging a plurality of groups of Y-shaped sealing rings, style seals and Gray rings, so that a communication structure is not formed between the second oil cavity and the air cavity, hydraulic oil can be prevented from evaporating through high-pressure air, air leakage of the device can be prevented, and the service life of the device is prolonged.
Drawings
FIG. 1 is a schematic diagram of the front view of the gas-oil balance cylinder of the present utility model;
FIG. 2 is a schematic diagram of a side view of a gas-oil balance cylinder according to the present utility model;
FIG. 3 is a schematic side view of a piston plate of a gas-oil balancing cylinder according to the present utility model;
fig. 4 is a schematic diagram of the front section structure of the piston plate of the gas-oil balance cylinder of the utility model.
In the figure: 1. a cylinder; 101. a first oil chamber; 102. a second oil chamber; 103. an air cavity; 2. an inflation valve; 3. an exhaust electromagnetic valve; 4. a first oil port; 5. a second oil port; 6. a spacer block; 7. a piston rod; 8. a piston plate; 9. a Gelai circle; 10. a stoneley seal; 11. and a Y-shaped sealing ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: the gas-oil balance cylinder comprises a cylinder body 1, one end of the cylinder body 1 is provided with an inflation valve 2, the lower part of the inflation valve 2 is provided with an exhaust electromagnetic valve 3, one end of the cylinder body 1 far away from the inflation valve 2 is provided with a first oil port 4, the outer surface of the cylinder body 1 longitudinally penetrates through and is provided with a second oil port 5, the middle part of the inner cavity of the cylinder body 1 is provided with a separation block 6 for dividing the inner cavity space of the cylinder body 1, the inner cavity of the cylinder body 1 is divided into a first oil cavity 101, a second oil cavity 102 and an air cavity 103 by the separation block 6 and a piston plate 8, the side end surface of the separation block 6 is provided with a piston rod 7, the outer surface of the piston rod 7 is provided with the piston plate 8, the contact surfaces of the piston plate 8 and the outer diameter surface of the piston rod 7 and the inner diameter surface of the cylinder body 1 are respectively provided with a Y-shaped sealing ring 11, a Gelai circle 9, a Stt seal 10 and a sealing ring, the device divides the inner cavity of the cylinder body 1 into the first oil cavity 101, the second oil cavity 102 and the air cavity 103 by the separation block 6 and the piston plate 8, wherein the second oil chamber 102 and the air chamber 103 are always in dynamic balance, and the total volume added by the second oil chamber 102 and the air chamber 103 is always unchanged, when the device is in hydraulic support, hydraulic oil is infused into the inner chamber of the second oil chamber 102 through the second oil port 5, and finally flows out of the first oil chamber 101 through the through hole, in order to prevent hydraulic impact generated at the moment of pressurizing the second oil chamber 102, air is inflated into the air chamber 103, so that the piston plate 8 moves, at the moment, the air chamber 103 plays a role of buffering, when the device is in pneumatic support, air is infused into the air chamber 103 through the inflation valve 2, finally flows out through the exhaust electromagnetic valve 3, in order to prevent the moment of pressurizing the air chamber 103, hydraulic oil is infused into the second oil chamber 102, so that the piston plate 8 moves, at the moment, the second oil chamber 102 plays a role of buffering, the relative volumes of the second oil cavity 102 and the air cavity 103 are dynamically balanced, so that after the air-oil balance cylinder is installed, the same station can realize the effects of air pressure buffering and hydraulic supporting simultaneously, the installation space is greatly saved, and the problems of air pressure impact and hydraulic impact generated by the air balance cylinder and the hydraulic balance cylinder are prevented;
the contact surface of the piston rod 7 and the isolation block 6 is transversely provided with a through hole in a penetrating way, the first oil cavity 101 and the second oil cavity 102 form a communication structure through the through hole, the first oil port 4, the second oil port 5, the first oil cavity 101 and the second oil cavity 102 form a communication structure, the edge of the charging valve 2, the exhaust electromagnetic valve 3, the first oil port 4 and the second oil port 5 are provided with sealing rings, the upper part of the first oil port 4 is provided with an oil discharging port, the oil discharging port and the first oil port 4 form a communication structure, the charging valve 2 forms a communication structure with the exhaust electromagnetic valve 3 through the air cavity 103, one end of the piston rod 7 is provided with a chamfer for assisting the flow of hydraulic oil, a sliding structure is formed between the piston plate 8 and the piston rod 7, the Y-shaped sealing rings 11 and the Style seals 10 are respectively provided with two groups, the two Style seals 10 are arranged between the two groups of Y-shaped sealing rings 11, the Style rings 9 are arranged between the two groups of Style seals 10, the piston plate 8 and the outer diameter surface of the piston rod 7 and the inner diameter surface of the cylinder body 1 are respectively provided with a group of Gelai ring 9, two groups of Style seals 10 and two groups of Y-shaped sealing rings 11, the outer surfaces of the Y-shaped sealing rings 11, the Gelai ring 9 and the Style seals 10 are respectively provided with sealing rings, piston wear-resistant rings are arranged among the Y-shaped sealing rings 11, the Gelai ring 9 and the Style seals 10, the outer shapes of the Gelai ring 9 and the Style seals 10 are rectangular, the Gelai ring 9 and the Style seals 10 are formed by overlapping an O-shaped ring and a polytetrafluoroethylene ring, the Y-shaped sealing rings 11 are made of fluororubber, through the special structural design of the inside of the cavity, the Y-shaped sealing rings are changed according to the switching of gas and oil in the cavity, so that the device can realize the functions of gas buffering and load holding at the same time, and the air tightness problem between the second oil cavity 102 and the air cavity 103 is the most important when the piston rod 7 and the piston plate 8 move relatively, through setting up multiunit Y type sealing washer 11, stoneley seal 10 and gray circle 9 and keeping apart second oil pocket 102 and air cavity 103 to make between second oil pocket 102 and the air cavity 103 not constitute the communication structure, can prevent that hydraulic oil from evaporating through high-pressure gas, can prevent this device to produce the gas leakage again, thereby increase the life of this device.
Working principle: when the pneumatic oil balance cylinder is used, the space in the inner cavity of the cylinder body 1 is divided into a first oil cavity 101, a second oil cavity 102 and an air cavity 103 through the isolation block 6 and the piston plate 8, wherein the second oil cavity 102 and the air cavity 103 are always in dynamic balance, the total volume added by the second oil cavity 102 and the air cavity 103 is always unchanged, when the device is in hydraulic support, hydraulic oil is infused into the inner cavity of the second oil cavity 102 through the second oil port 5 and finally flows out of the first oil cavity 101 through the through hole, in order to prevent the instant hydraulic impact generated when the hydraulic oil is pressurized into the second oil cavity 102, air is infused into the air cavity 103, so that the piston plate 8 moves, the air cavity 103 acts as a buffer function at the moment, when the device is in pneumatic support, air is infused into the air cavity 103 through the air inflation valve 2, finally flows out through the air exhaust electromagnetic valve 3, in order to prevent the instant pneumatic impact generated when the hydraulic oil is stamped into the air cavity 103, hydraulic oil is infused into the second oil cavity 102, so that the piston plate 8 moves, at this time, the second oil cavity 102 acts as a buffer, dynamic balance is generated by the relative volumes of the second oil cavity 102 and the air cavity 103, so that after the air-oil balance cylinder is installed, the same station can realize the air pressure buffer and hydraulic support effects at the same time, the installation space is greatly saved, the problems of air pressure impact and hydraulic impact generated by the air balance cylinder and the hydraulic balance cylinder are prevented, through the special structural design of the inside of the cavity, the air buffer and load holding functions can be realized at the same time according to the switching of air and oil in the cavity, the device is the most important that when the piston rod 7 and the piston plate 8 generate relative movement, the air tightness between the second oil cavity 102 and the air cavity 103 is realized, and the second oil cavity 102 and the air cavity 103 are isolated by arranging a plurality of groups of Y-shaped sealing rings 11, stocks 10 and Gelai rings 9, therefore, a communication structure is not formed between the second oil cavity 102 and the air cavity 103, not only can the hydraulic oil be prevented from evaporating through high-pressure air, but also the device can be prevented from generating air leakage, and the service life of the device is prolonged.
Claims (6)
1. The utility model provides a gas-oil balance jar, includes cylinder body (1), its characterized in that, the one end of cylinder body (1) is provided with inflation valve (2), and the below of inflation valve (2) is provided with exhaust solenoid valve (3), the one end that inflation valve (2) was kept away from to cylinder body (1) is provided with first hydraulic fluid port (4), the surface of cylinder body (1) vertically runs through and is provided with second hydraulic fluid port (5), the middle part of cylinder body (1) inner chamber is provided with partition block (6) of cutting apart cylinder body (1) inner chamber space, and the side terminal surface of partition block (6) is provided with piston rod (7), the surface of piston rod (7) is provided with piston plate (8), piston plate (8) with piston rod (7) external diameter surface with the contact surface on cylinder body (1) internal diameter surface all is provided with Y sealing washer (11), glai circle (9), scht sealing washer (10) and sealing washer.
2. A gas-oil balance cylinder according to claim 1, characterized in that the inner cavity of the cylinder body (1) is divided into a first oil cavity (101), a second oil cavity (102) and an air cavity (103) by a separation block (6) and a piston plate (8), a through hole is transversely arranged on the contact surface of the piston rod (7) and the separation block (6), the first oil cavity (101) and the second oil cavity (102) form a communication structure by the through hole, the first oil port (4), the second oil port (5), the first oil cavity (101) and the second oil cavity (102) form a communication structure, and a sliding structure is formed between the piston plate (8) and the piston rod (7).
3. A gas-oil balance cylinder according to claim 1, characterized in that the Y-shaped sealing rings (11) and the stirling seals (10) are provided with two groups, the two groups of the stirling seals (10) are arranged between the two groups of the Y-shaped sealing rings (11), the gray rings (9) are arranged between the two groups of the stirling seals (10), the outer diameter surfaces of the piston plate (8) and the piston rod (7) and the inner diameter surface of the cylinder body (1) are respectively provided with one group of the gray rings (9), two groups of the stirling seals (10) and two groups of the Y-shaped sealing rings (11), the gray rings (9) and the stirling seals (10), and the outer surfaces of the Y-shaped sealing rings (11), the gray rings (9) and the stirling seals (10) are provided with piston wear resistant rings.
4. The gas-oil balance cylinder according to claim 1, characterized in that the outer shape of the gurley circle (9) and the stirling seal (10) are rectangular, the gurley circle (9) and the stirling seal (10) are formed by overlapping an O-ring and a polytetrafluoroethylene ring, and the Y-shaped sealing ring (11) is made of fluororubber.
5. The gas-oil balance cylinder according to claim 1, characterized in that the gas charging valve (2) and the exhaust electromagnetic valve (3) form a communication structure through a gas cavity (103), and one end of the piston rod (7) is provided with a chamfer angle for assisting the flow of hydraulic oil.
6. The gas-oil balance cylinder according to claim 1, wherein sealing rings are arranged at edges of the gas charging valve (2), the gas discharging electromagnetic valve (3), the first oil port (4) and the second oil port (5), and an oil discharging port is arranged above the first oil port (4), and the oil discharging port and the first oil port (4) form a communication structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321528551.6U CN220037136U (en) | 2023-06-15 | 2023-06-15 | Gas-oil balance cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321528551.6U CN220037136U (en) | 2023-06-15 | 2023-06-15 | Gas-oil balance cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220037136U true CN220037136U (en) | 2023-11-17 |
Family
ID=88733966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321528551.6U Active CN220037136U (en) | 2023-06-15 | 2023-06-15 | Gas-oil balance cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220037136U (en) |
-
2023
- 2023-06-15 CN CN202321528551.6U patent/CN220037136U/en active Active
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