CN221231149U - Cylinder piston rod cleaning device, pumping system and pumping machine - Google Patents
Cylinder piston rod cleaning device, pumping system and pumping machine Download PDFInfo
- Publication number
- CN221231149U CN221231149U CN202323069461.8U CN202323069461U CN221231149U CN 221231149 U CN221231149 U CN 221231149U CN 202323069461 U CN202323069461 U CN 202323069461U CN 221231149 U CN221231149 U CN 221231149U
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- air
- piston rod
- cylinder
- containing cavity
- valve
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- 238000004140 cleaning Methods 0.000 title claims abstract description 42
- 238000005086 pumping Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000013016 damping Methods 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 32
- 235000019198 oils Nutrition 0.000 description 32
- 235000019476 oil-water mixture Nutrition 0.000 description 19
- 239000007788 liquid Substances 0.000 description 16
- 239000013049 sediment Substances 0.000 description 15
- 230000009471 action Effects 0.000 description 8
- 238000005406 washing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides a pumping system, and provides a cleaning device for a piston rod of an oil cylinder, a pumping system and pumping machinery, wherein in the cleaning device, the oil cylinder comprises a cylinder cover, a piston rod penetrating through the cylinder cover and a sealing assembly arranged between the cylinder cover and the piston rod; an annular pressure containing cavity surrounding the piston rod is formed between the sealing component and the cylinder cover as well as between the sealing component and the piston rod; an air inlet channel and a drain channel which are communicated with the pressure containing cavity are arranged on the cylinder cover, and the air inlet channel and the drain channel are staggered; the air inlet component is communicated with the air inlet channel and is used for providing compressed air for the pressure containing cavity; the air resistance component is communicated with the drainage channel and is used for communicating the pressure containing cavity with the outside and damping compressed air in the pressure containing cavity to be discharged. The utility model adopts compressed air to clean the piston rod, can be continuously performed in real time, and has simple structure, low cost and less pollution.
Description
Technical Field
The present utility model relates to a pumping system, and more particularly, to a cylinder piston rod cleaning device, a pumping system, and a pumping machine.
Background
The pumping mechanism is a core part of the concrete conveying pump, and the reciprocating motion of the piston rod of the hydraulic cylinder drives the conveying cylinder and the concrete piston to realize continuous operation of concrete suction and pumping. During the working process, the piston rod of the hydraulic cylinder is soaked in the washing chamber, so that the cleaning, cooling and lubricating effects are achieved. When the piston rod of the hydraulic cylinder retreats, water in the washing chamber is easily supplied into hydraulic oil, so that the hydraulic oil is emulsified and deteriorated.
In the prior art, the cylinder in the pumping mechanism forms a pressure chamber 50 through a set of lip-facing lip-sealing rings to seal oil, and a set of dust-proof rings is used to block the invasion of external pollutants. The lip-shaped sealing ring is tightly attached to the piston rod under the action of pressure oil in the pressure containing cavity, and when the piston rod reciprocates, an oil film and a water film attached to the piston rod are scraped off by the sealing ring and enter the pressure containing cavity. Because the pumping device has extremely bad working environment, a great amount of sediment mixture is contained in the washing chamber, the surface of the piston rod soaked in the washing chamber can be adhered with impurities such as sediment, the dust ring can not completely scrape and squeeze the sediment mixture, and the sediment impurities adhered on the surface of the piston rod can be scraped and squeezed by the lip-shaped sealing ring to enter the pressure containing cavity, so that the oil-water mixture scraped and squeezed in the pressure containing cavity contains a plurality of impurities, and the mixture is deposited in the pressure containing cavity.
In chinese patent document CN 114321388A a waterproof device, pumping system, pumping machine and cleaning method are disclosed. In the method, a liquid inlet hole and a liquid outlet hole which are communicated with a pressure cavity are formed in a cylinder cover, the liquid inlet hole is connected with a liquid inlet component, the liquid outlet hole is connected with a liquid outlet component, and the liquid outlet component is enabled to open overflow by controlling the output pressure of the liquid inlet component. Thereby discharging the oil-water mixture, sundries and the like in the pressure containing cavity. In the technical scheme, the pressure in the pressure containing cavity is established through pressure oil, the pressure of the pressure containing cavity is larger than the opening pressure of the liquid outlet component by controlling the liquid inlet component, so that the oil-water mixture and sundries in the pressure containing cavity can be discharged, and when the liquid inlet component is closed or the output pressure is lower than the opening pressure of the liquid outlet component, the oil-water mixture and sundries in the pressure containing cavity can be discharged. In the technical scheme, the discharge of the oil-water mixture and sundries in the pressure containing cavity is intermittent, and the oil-water mixture and sundries which are not discharged in time in the pressure containing cavity have adverse effects on the sealing assembly; when the oil-water mixture and sundries in the pressure containing cavity are discharged by the control liquid inlet component, oil in the pressure containing cavity can be discharged, and a large amount of oil can be wasted when frequent cleaning is performed. In addition, the liquid inlet assembly is formed by a plurality of valves, and the cost is high.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art or related art. To this end, the utility model provides a cylinder piston rod cleaning device, a pumping system and a pumping machine.
The technical scheme for achieving the purpose of the utility model is as follows: the oil cylinder comprises a cylinder cover, a piston rod penetrating through the cylinder cover, and a sealing assembly arranged between the cylinder cover and the piston rod; an annular pressure containing cavity surrounding the piston rod is formed between the sealing component and the cylinder cover as well as between the sealing component and the piston rod;
An air inlet channel and a drain channel which are communicated with the pressure cavity are arranged on the cylinder cover, and the air inlet channel and the drain channel are staggered;
the cleaning device further includes:
The air inlet component is communicated with the air inlet channel and is used for providing compressed air for the pressure containing cavity;
And the air resistance component is communicated with the drainage channel and is used for communicating the pressure containing cavity with the outside and damping compressed air in the pressure containing cavity to be discharged.
In the utility model, the air inlet component provides compressed air, the air resistance component releases air in the pressure containing cavity, and pressure is built in the pressure containing cavity by utilizing the damping characteristic of the air resistance component, so that the sealing component is attached to the piston rod, and water films, oil films and silt adhered to the piston rod are removed; compressed air enters the pressure containing cavity from the air inlet channel, is discharged from the drainage channel, and brings away oil-water mixture, sediment sundries and the like when flowing through the pressure containing cavity, so that the piston rod is cleaned. In the utility model, the compressed air for cleaning the piston rod is taken from the outside, discharged and released back to the outside, so that the cost is low, the environment pollution is avoided, and the adverse effect on the hydraulic oil of the oil cylinder and the washing liquid in the piston rod washing tank is avoided. Because the cost is low and harmless, the whole process ventilation is carried out on the pressure containing cavity in the whole process of the telescopic action work of the oil cylinder, and the oil-water mixture and sediment sundries in the pressure containing cavity are removed in real time. The cleaning device is not required to be subjected to interference control after being started, and the operation is simple.
In the cleaning device for the cylinder piston rod, the communication positions of the air inlet channel and the drainage channel and the pressure containing cavity are symmetrical relative to the axis of the piston rod. The air inlet channels and the drainage channels are staggered, compressed air is divided into two paths to flow to the drainage channels after entering the pressure containing cavity from the air inlet channels, and the air inlet channels and the drainage channels are symmetrically arranged, so that the paths of the compressed air in the pressure containing cavity are identical, the air flow resistance is basically identical, and the two air paths have basically identical cleaning effects. Further, the air inlet channel is communicated with the top of the pressure containing cavity, and the drainage channel is communicated with the bottom of the pressure containing cavity. In the pressure cavity, the air flow flows to the drainage channel from top to bottom, the oil-water mixture and the sediment sundries scraped from the piston rod by the sealing component flow downwards to the drainage channel under the action of self gravity, and the flow direction of the sealing component is the same as that of the compressed air, so that the oil-water mixture and the sediment sundries can be conveniently removed and discharged.
In the oil cylinder piston rod cleaning device, the air inlet assembly comprises an air compressor connected with an air inlet channel; or the air inlet assembly comprises an air storage tank and an air compressor for supplementing compressed air for the air storage tank; the air inlet channel is communicated with the air storage tank.
In the cleaning device for the cylinder piston rod, the air inlet assembly further comprises a two-way switch valve; the two-way switch valve is arranged on a connecting gas path between the gas storage tank and the gas inlet channel and is used for controlling the connection gas path between the gas storage tank and the gas inlet channel to be switched on or off. When the oil cylinder stretches and contracts to work, or after the hydraulic pump for providing pressure oil for the oil cylinder is started, the two-way switch valve can be opened, so that the cleaning device enters a working state, and the piston rod is cleaned in real time. And closing the two-way switch valve after the oil cylinder stops the telescopic action or the hydraulic pump stops. The two-way switch valve can be an electromagnetic valve, so that the open-close operation control is facilitated.
In the cylinder piston rod cleaning device, the air inlet assembly further comprises a stop valve, and the stop valve is arranged on a connecting air passage between the air storage tank and the two-way switch valve and used for controlling the connecting air passage between the air storage tank and the two-way switch valve to be conducted or cut off. The stop valve is a normally open valve, and can be closed when the gas path between the two-way switch valve and the drainage channel is required to be detected and maintained.
In the cylinder piston rod cleaning device, the air inlet assembly further comprises a one-way valve, the one-way valve is arranged on a connecting air path between the two-way switch valve and the air inlet channel, the air inlet end of the one-way valve is communicated with the air outlet end of the two-way switch valve, and the air outlet end of the one-way valve is communicated with the air inlet channel. The one-way valve can prevent the oil-water mixture in the pressure containing cavity from flowing reversely to the air inlet assembly after the drain channel is blocked, so that the oil-water mixture is prevented from being damaged.
In the cleaning device for the cylinder piston rod, the air resistance component is a damping valve or a back pressure valve. The air resistance component realizes the exhausting function and the damping function so that the pressure cavity continuously exhausts under a certain pressure. The damping valve consists of a valve body and a damping hole arranged on the valve body; the back pressure valve is a one-way valve, when the pressure at the inlet reaches a preset value, the back pressure valve is opened to release compressed air, and the valve core can be a conical valve core or a steel ball valve core.
The technical scheme for achieving the purpose of the utility model is as follows: constructing a pumping system, wherein the pumping system comprises a conveying cylinder and an oil cylinder, and the oil cylinder is provided with the oil cylinder piston rod cleaning device;
The piston rod of the oil cylinder is connected with the piston rod of the conveying cylinder and used for pushing the piston rod in the conveying cylinder to move.
The technical scheme for achieving the purpose of the utility model is as follows: a pumping machine is constructed comprising the aforementioned cylinder piston rod cleaning device, or comprising the aforementioned pumping system.
Compared with the prior art, the utility model adopts compressed air to clean the piston rod, can be continuously carried out in real time, and has the advantages of simple structure, low cost and less pollution.
Drawings
Fig. 1 is a schematic structural view of a cylinder piston rod cleaning device of the present utility model.
Part names and serial numbers in the figure:
The cylinder comprises a cylinder 10, a piston rod 11, a cylinder cover 12, a sealing assembly 13, a pressure containing cavity 14, an air inlet channel 15 and a drain channel 16.
An air inlet assembly 20, an air compressor 21, an air storage tank 22, a two-way switch valve 23, a stop valve 24 and a one-way valve 25.
And an air blocking member 30.
Detailed Description
The following describes specific embodiments with reference to the drawings.
As shown in fig. 1, in the cylinder-piston-rod cleaning device, a cylinder 10 includes a cylinder head 12, a piston rod 11 penetrating the cylinder head 12, and a seal assembly 13 provided between the cylinder head 12 and the piston rod 11.
The sealing assembly 13 comprises a plurality of sealing rings which are distributed at intervals along the length direction of the piston rod 11, and an annular pressure containing cavity 14 which surrounds the piston rod 11 is formed between one pair of adjacent sealing rings and the cylinder cover 12 and the piston rod 11.
An intake passage 15 and a drain passage 16, both of which are communicated with the pressure chamber 14, are provided on the cylinder head 12, and the intake passage 15 and the drain passage 16 are arranged in a staggered manner. Alternatively, the positions at which the intake passage 15 and the drain passage 16 communicate with the pressure chamber 14 are symmetrical with respect to the axial center of the piston rod 11, respectively, that is, the intake passage 15 and the drain passage 16 extend in the radial direction of the piston rod 11 and are located on the same straight line, respectively. Of course, in other embodiments of the present utility model, the intake passage 15 and the exhaust passage 16 may be nonlinear.
The air inlet channel 15 and the drainage channel 16 are staggered, compressed air is divided into two paths to flow to the drainage channel 16 after entering the pressure containing cavity 14 from the air inlet channel 15, and the air inlet channel 15 and the drainage channel 16 are symmetrically arranged, so that the path length of the two air paths of the compressed air in the pressure containing cavity 14 is the same, the air flow resistance is basically the same, and the two air paths have basically the same cleaning effect.
Optionally, the air inlet channel 15 communicates with the top of the pressure chamber 14, and the drain channel 16 communicates with the bottom of the pressure chamber 14. The top and bottom refer to the relative positions of the cylinders in the up-down direction after being mounted and fixed on the pumping machine. In the pressure cavity 14, the air flow flows to the drainage channel 16 from top to bottom, the oil-water mixture and sediment sundries scraped from the piston rod 11 by the sealing component 13 flow downwards to the drainage channel 16 under the action of self gravity, and the flow direction of the oil-water mixture and sediment sundries is the same as that of the compressed air, so that the oil-water mixture and sediment sundries can be conveniently removed and discharged.
An intake assembly 20 communicates with the intake passage 15 for providing compressed air to the pressure vessel 14. The air blocking member 30 communicates with the discharge passage 16 for communicating the pressure vessel 14 with the outside and damping the discharge of compressed air in the pressure vessel 14.
The air intake assembly 20 provides compressed air, the air blocking member 30 releases air in the pressure chamber 14 and builds up pressure in the pressure chamber 14 using its damping characteristics so that the corresponding sealing ring in the sealing assembly 13 engages the piston rod 11 to scrape off water films, oil films and silt adhering to the piston rod 11 on the middle section of the pressure chamber 14. Compressed air enters the pressure containing cavity 14 from the air inlet channel 15, is discharged from the discharge channel 16, and takes away oil-water mixture, sediment, sundries and the like when flowing through the pressure containing cavity 14, so as to play a role in cleaning the piston rod 11. The compressed air for cleaning the piston rod 11 is taken from the outside, discharged and released back to the outside, so that the cost is low, the environment pollution is not caused, and the adverse effect on the hydraulic oil of the oil cylinder 10 and the washing liquid in the piston rod washing tank is not caused. Because of low cost and no harm, the whole process of the telescopic action of the oil cylinder 10 is used for ventilating the pressure containing cavity, so that the oil-water mixture and sediment sundries in the pressure containing cavity 14 are removed in real time. The cleaning device is not required to be subjected to interference control after being started, and the operation is simple.
The air intake assembly 20 includes an air compressor 21 connected to the air intake passage 15; after the machine using the cylinder piston rod cleaning device is started, the air compressor 21 is started to operate, compressed air is output to enter the pressure containing cavity 14, and air in the pressure containing cavity 14 is discharged through the discharge channel 16 and the air resistance component 30. When the compressed air flows through the pressure containing cavity 14, an oil film, a water film, sediment and the like adhered to the section of the piston rod 11 in the pressure container are taken away, so that the piston rod 11 is cleaned. Compressed air enters the pressure containing cavity 14, and the pressure containing cavity 14 is at a preset pressure due to the action of the air resistance component 30, so that a corresponding sealing ring in the sealing assembly 13 is tightly attached to the surface of the piston rod 11, and oil films, water films, sediment sundries and the like on the surface of the piston rod 11 are scraped off.
Optionally, the air intake assembly 20 further includes an air reservoir 22; the air compressor 21 is communicated with the air storage tank 22 to form a compressed air source, and the air inlet channel 15 is communicated with the air storage tank 22. The air tank 22 may store a certain amount of air so that the air compressor 21 may intermittently operate, and the air tank 22 may stabilize the air pressure.
Optionally, the air intake assembly 20 further comprises a two-way switch valve 23; the two-way switch valve 23 is disposed on a connection air path between the air storage tank 22 and the air inlet channel 15, and is used for controlling the connection air path between the air storage tank 22 and the air inlet channel 15 to be turned on or turned off. The air inlet end of the two-way switch valve 23 is communicated with the air storage tank 22, and the air outlet end of the two-way switch valve 23 is communicated with the air inlet channel 15. When the oil cylinder 10 operates in a telescopic motion, or after a hydraulic pump for supplying pressure oil to the oil cylinder is started, the two-way switch valve 23 can be opened, so that the cleaning device is in a working state, and the piston rod 11 is cleaned in real time. The two-way switching valve 23 is closed after the cylinder 10 stops the telescopic action or the hydraulic pump stops. The two-way switching valve 23 may be a solenoid valve, which facilitates the control of the opening and closing operations.
Optionally, the air intake assembly 20 further includes a stop valve 24, where the stop valve 24 is disposed on a connection air path between the air tank 22 and the two-way switch valve 23, and the two-way switch valve 23 is connected to the air tank 22 through the stop valve 24, so as to control the connection air path between the air tank 22 and the two-way switch valve 23 to be turned on or off. The shutoff valve 24 is a normally open valve, and can be closed when it is necessary to inspect and repair the gas passage between the two-way switching valve 23 and the drain passage 26.
Optionally, the air inlet assembly 20 further includes a check valve 25, the check valve 25 is disposed on a connection air path between the two-way switch valve 23 and the air inlet channel 15, an air inlet end of the check valve 25 is communicated with an air outlet end of the two-way switch valve 23, and an air outlet end of the check valve 25 is communicated with the air inlet channel 15. The check valve 25 prevents the oil-water mixture in the pressure vessel 14 from flowing backward to the air intake assembly 20 after the drain passage 16 is blocked.
The air blocking member 30 is a damping valve or a back pressure valve. The air blocking member 30 is to perform a venting function and a damping function so that the pressure vessel 14 is continuously vented under a certain pressure. The damping valve is composed of a valve body and a damping hole arranged on the valve body. The back pressure valve is a one-way valve which can be conducted in a one-way under the preset pressure, when the pressure at the inlet reaches the preset value, the back pressure valve is opened to release compressed air, and the valve core can be a conical valve core or a steel ball valve core.
The utility model also provides a pumping system, which comprises a conveying cylinder and an oil cylinder 10, wherein the oil cylinder 10 is provided with the oil cylinder piston rod cleaning device; the piston rod of the oil cylinder is connected with the piston rod of the conveying cylinder and is used for pushing the piston rod in the conveying cylinder to move.
The utility model also provides a pumping machine which comprises the oil cylinder piston rod cleaning device or the pumping system.
The utility model adopts compressed air to clean the piston rod, can continuously clean the piston rod in real time, and has simple structure, low cost and less pollution.
Claims (10)
1. The cylinder comprises a cylinder cover, a piston rod penetrating through the cylinder cover, and a sealing assembly arranged between the cylinder cover and the piston rod; an annular pressure containing cavity surrounding the piston rod is formed between the sealing component and the cylinder cover as well as between the sealing component and the piston rod;
The cylinder cover is characterized in that an air inlet channel and a drain channel which are communicated with the pressure containing cavity are arranged on the cylinder cover, and the air inlet channel and the drain channel are staggered; the cleaning device further includes:
The air inlet component is communicated with the air inlet channel and is used for providing compressed air for the pressure containing cavity;
And the air resistance component is communicated with the drainage channel and is used for communicating the pressure containing cavity with the outside and damping compressed air in the pressure containing cavity to be discharged.
2. The cylinder piston rod cleaning apparatus according to claim 1, wherein the positions at which the intake passage and the discharge passage communicate with the pressure chamber are symmetrical with respect to the axis of the piston rod.
3. The cylinder piston rod cleaning apparatus according to claim 2, wherein the intake passage communicates with a top of the pressure chamber, and the drain passage communicates with a bottom of the pressure chamber.
4. A cylinder piston rod cleaning apparatus according to any one of claims 1 to 3, wherein the air intake assembly includes an air compressor connected to an air intake passage; or the air inlet assembly comprises an air storage tank and an air compressor for supplementing compressed air for the air storage tank; the air inlet channel is communicated with the air storage tank.
5. The cylinder piston rod cleaning apparatus according to claim 4, wherein the air intake assembly further comprises a two-way on-off valve; the two-way switch valve is arranged on a connecting gas path between the gas storage tank and the gas inlet channel and is used for controlling the connection gas path between the gas storage tank and the gas inlet channel to be switched on or off.
6. The cylinder piston rod cleaning apparatus according to claim 5, wherein the air intake assembly further comprises a stop valve disposed on a connection air path between the air tank and the two-way switching valve for controlling the connection air path between the air tank and the two-way switching valve to be turned on or off.
7. The cylinder piston rod cleaning apparatus according to claim 5, wherein the air intake assembly further comprises a check valve disposed on a connection air path between the two-way switching valve and the air intake passage, an air intake end of the check valve being in communication with an air outlet end of the two-way switching valve, an air outlet end of the check valve being in communication with the air intake passage.
8. A cylinder piston rod cleaning apparatus according to any one of claims 5 to 7, wherein the air blocking member is a damping valve or a back pressure valve.
9. A pumping system, characterized in that the pumping system comprises a delivery cylinder and a cylinder, the cylinder being provided with a cylinder piston rod cleaning device according to any one of claims 1 to 8;
The piston rod of the oil cylinder is connected with the piston rod of the conveying cylinder and used for pushing the piston rod in the conveying cylinder to move.
10. A pumping machine comprising a cylinder piston rod cleaning device according to any one of claims 1 to 8 or comprising a pumping system according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323069461.8U CN221231149U (en) | 2023-11-14 | 2023-11-14 | Cylinder piston rod cleaning device, pumping system and pumping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323069461.8U CN221231149U (en) | 2023-11-14 | 2023-11-14 | Cylinder piston rod cleaning device, pumping system and pumping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221231149U true CN221231149U (en) | 2024-06-28 |
Family
ID=91616071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323069461.8U Active CN221231149U (en) | 2023-11-14 | 2023-11-14 | Cylinder piston rod cleaning device, pumping system and pumping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221231149U (en) |
-
2023
- 2023-11-14 CN CN202323069461.8U patent/CN221231149U/en active Active
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