阅读说明：本技术 一种高效清洗油缸液压站以及清洗油缸的方法 (Hydraulic station for efficiently cleaning oil cylinder and method for cleaning oil cylinder ) 是由 阎军 蒋玉成 徐其军 李�灿 王杰 于 2019-10-11 设计创作，主要内容包括：本发明提供了一种高效清洗油缸液压站,包括液压站组件、清洗油缸和两个双向可逆过滤总成；液压站组件包括：油箱、齿轮泵、手动换向阀、出油管以及回油管；出油管和回油管分别与油箱的油箱出油口和油箱回油口连通,齿轮泵安装在出油管上,手动换向阀具有同侧的P、T两个阀口和与其相对的A、B两个阀口,手动换向阀的P、T两个阀口分别与出油管和回油管连通,A、B两个阀口作为液压站组件的液压站出油口和液压站回油口；清洗油缸的无杆腔和有杆腔各通过一根连通油管与手动换向阀的A、B两个阀口连通,两个双向可逆过滤总成分别安装在清洗油缸与手动换向阀之间的两根连通油管上。本发明还提供一种清洗油缸的方法。(The invention provides a hydraulic station for an efficient cleaning oil cylinder, which comprises a hydraulic station component, a cleaning oil cylinder and two bidirectional reversible filtering assemblies; the hydraulic station assembly includes: the oil tank, the gear pump, the manual reversing valve, the oil outlet pipe and the oil return pipe; the oil outlet pipe and the oil return pipe are respectively communicated with an oil tank outlet and an oil tank return port of an oil tank, the gear pump is installed on the oil outlet pipe, the manual reversing valve is provided with P, T two valve ports on the same side and A, B two valve ports opposite to the same side, P, T two valve ports of the manual reversing valve are respectively communicated with the oil outlet pipe and the oil return pipe, and A, B two valve ports are used as a hydraulic station oil outlet and a hydraulic station return port of the hydraulic station assembly; the rodless cavity and the rod cavity of the cleaning oil cylinder are respectively communicated with A, B two valve ports of the manual reversing valve through a communicating oil pipe, and the two bidirectional reversible filtering assemblies are respectively arranged on the two communicating oil pipes between the cleaning oil cylinder and the manual reversing valve. The invention also provides a method for cleaning the oil cylinder.)

1. The utility model provides a high-efficient cleaning cylinder hydraulic pressure station which characterized in that includes: the device comprises a hydraulic station assembly, a cleaning oil cylinder (7) and two bidirectional reversible filtering assemblies (6);

the hydraulic station assembly includes: the oil pump comprises an oil tank (1), a gear pump (2), a manual reversing valve (3), an oil outlet pipe (4) and an oil return pipe (5); the oil outlet pipe (4) and the oil return pipe (5) are respectively communicated with an oil outlet of the oil tank (1) and an oil return port of the oil tank, the gear pump (2) is installed on the oil outlet pipe (4), the manual reversing valve (3) is provided with P, T two valve ports on the same side and A, B two valve ports opposite to the valve ports, P, T two valve ports of the manual reversing valve (3) are respectively communicated with the oil outlet pipe (4) and the oil return pipe (5), and the A, B two valve ports are used as an oil outlet of a hydraulic station and an oil return port of the hydraulic station assembly;

the rodless cavity and the rod cavity of the cleaning oil cylinder (7) are respectively communicated with A, B two valve ports of the manual reversing valve (3) through a communicating oil pipe, and the two bidirectional reversible filtering assemblies (6) are respectively arranged on the two communicating oil pipes between the cleaning oil cylinder (7) and the manual reversing valve (3).

2. The high efficiency wash cylinder hydraulic station as set forth in claim 1, characterized in that said hydraulic station assembly further comprises an overflow oil pipe and an overflow valve (8), said overflow oil pipe communicating with said flow line (4), said overflow valve (8) being mounted on said overflow oil pipe.

3. The high efficiency wash cylinder hydraulic station as set forth in claim 1 characterized in that both of said two reversible filter assemblies (6) are fitted with a filter clogging alarm.

4. The high efficiency wash cylinder hydraulic station according to claim 1, characterized in that it further comprises a compressed air assembly for pressing compressed air into the rodless and rod chambers of the wash cylinder (7), respectively.

5. The hydraulic station of the high-efficiency cleaning oil cylinder according to claim 4, wherein the compressed air assembly comprises an air pump and an air filter, the air filter is communicated with the rodless cavity and the rod cavity of the cleaning oil cylinder (7), and compressed air pumped by the air pump is filtered by the air filter and then is respectively pressed into the rodless cavity and the rod cavity of the cleaning oil cylinder (7).

6. The hydraulic station of an efficient cleaning cylinder according to claim 5, characterized in that the compressed air assembly further comprises two on-off valves, and the two on-off valves are respectively installed on a communicating pipeline of the air filter and the rodless cavity of the cleaning cylinder (7).

7. A method of cleaning rams performed using the high efficiency cleaning rams hydraulic station of any of claims 1 to 6, the method comprising the steps of:

s1) starting a gear pump (2) in the hydraulic station assembly;

s2) manually operating the manual reversing valve (3) to enable hydraulic oil in the oil tank (1) to enter a rodless cavity of the cleaning oil cylinder (7) through the bidirectional reversible filtering assembly (6), wherein an oil cylinder piston rod in the cleaning oil cylinder (7) moves towards a rod cavity under the action of the hydraulic oil;

s3) under the condition that the oil cylinder piston rod moves to completely extend out of the oil cylinder cavity of the cleaning oil cylinder (7), the manual reversing valve (3) is manually operated to reverse, so that hydraulic oil in the oil tank (1) enters a rod cavity of the cleaning oil cylinder (7) through the other bidirectional reversible filtering assembly (6), and the oil cylinder piston rod in the cleaning oil cylinder (7) moves towards the direction of a rodless cavity under the action of the hydraulic oil until the oil cylinder piston rod moves to completely retract into the oil cylinder cavity of the cleaning oil cylinder (7);

s4) repeating the steps S2) to S3) until the cleaning operation of the hydraulic oil in the cleaning oil cylinder (7) is completed.

8. The hydraulic station cleaning method of claim 7, further comprising:

after cleaning operation of hydraulic oil in the cleaning oil cylinder (7) is finished, compressed air is successively pressed into a rod cavity and a rodless cavity of the cleaning oil cylinder (7) by using the compressed air assembly, so that the hydraulic oil in the cleaning oil cylinder (7) returns to an oil tank (1) of the hydraulic station assembly through the two bidirectional reversible filtering assemblies (6);

and disassembling the cleaning oil cylinder (7), and plugging an oil port of the cleaning oil cylinder (7).

Technical Field

The invention relates to the technical field of water conservancy tunnel construction, in particular to a hydraulic station for efficiently cleaning an oil cylinder and a method for cleaning the oil cylinder.

Background

In the engineering machinery, an oil cylinder is a working executor and is a mechanical arm of an engineering machinery product. The engineering mechanical equipment has high working strength and large working pressure, a common oil cylinder is provided with a self-locking mechanism such as a balance valve, and hydraulic oil in the oil cylinder must reach the NAS9 level or above.

The existing traditional process uses an oil cylinder cleaning station to clean an oil cylinder, cleaning fluid pressure oil is filled in an oil tank of the oil cylinder cleaning station, when the oil cylinder is cleaned by the oil cylinder cleaning station, particles in an inner cavity of the oil cylinder are washed into the oil tank, so that the cleaning fluid in the oil tank becomes more and more dirty, the oil cylinder is cleaned more and more dirty by the cleaning fluid, if the cleaning fluid is replaced regularly, the cost is high, the effect is not obvious, and the cleaned oil cylinder cannot meet the set requirement of specified cleanliness.

Disclosure of Invention

The invention provides a hydraulic station for efficiently cleaning an oil cylinder and a hydraulic station cleaning method, which can ensure that the cleaning oil cylinder meets the set requirement of cleanliness; meanwhile, frequent hydraulic oil replacement is avoided, and the use cost is reduced.

The invention provides a high-efficiency cleaning oil cylinder hydraulic station, which comprises: the device comprises a hydraulic station component, a cleaning oil cylinder and two bidirectional reversible filtering assemblies; the hydraulic station assembly includes: the oil tank, the gear pump, the manual reversing valve, the oil outlet pipe and the oil return pipe; the oil outlet pipe and the oil return pipe are respectively communicated with an oil tank outlet and an oil tank oil return port of the oil tank, the gear pump is installed on the oil outlet pipe, the manual reversing valve is provided with P, T two valve ports on the same side and A, B two valve ports opposite to the same side, the P, T two valve ports of the manual reversing valve are respectively communicated with the oil outlet pipe and the oil return pipe, and the A, B two valve ports are used as a hydraulic station oil outlet and a hydraulic station oil return port of the hydraulic station assembly; the rodless cavity and the rod cavity of the cleaning oil cylinder are respectively communicated with A, B two valve ports of the manual reversing valve through a communicating oil pipe, and the two bidirectional reversible filtering assemblies are respectively arranged on the two communicating oil pipes between the cleaning oil cylinder and the manual reversing valve.

Preferably, the hydraulic station assembly further comprises an overflow oil pipe and an overflow valve, the overflow oil pipe is communicated with the oil outlet pipe, and the overflow valve is installed on the overflow oil pipe.

Preferably, both of the reversible filter assemblies are fitted with a filter element blockage alarm.

Preferably, the high-efficiency cleaning oil cylinder hydraulic station further comprises a compressed air assembly, and the compressed air assembly is used for pressing compressed air into the rodless cavity and the rod cavity of the cleaning oil cylinder respectively.

Preferably, the compressed air assembly comprises an air pump and an air filter, the air filter is communicated with the rodless cavity and the rod cavity of the cleaning oil cylinder, and compressed air pumped by the air pump is filtered by the air filter and then is respectively pressed into the rodless cavity and the rod cavity of the cleaning oil cylinder.

Preferably, the compressed air assembly further comprises two on-off valves, and the two on-off valves are respectively arranged on a communicating pipeline of the air filter and a rodless cavity and a communicating pipeline of a rodless cavity of the cleaning oil cylinder.

In another aspect, the present invention provides a method for cleaning a cylinder, which is performed by using the high-efficiency cylinder cleaning hydraulic station provided by the present invention, and comprises the following steps: s1) starting a gear pump in the hydraulic station assembly; s2) manually operating the manual reversing valve to enable hydraulic oil in the oil tank to enter a rodless cavity of the cleaning oil cylinder through the bidirectional reversible filtering assembly, wherein an oil cylinder piston rod in the cleaning oil cylinder moves towards a rod cavity under the action of the hydraulic oil; s3) under the condition that the oil cylinder piston rod moves to completely extend out of the oil cylinder cavity of the cleaning oil cylinder, manually operating the manual reversing valve to reverse, enabling hydraulic oil in the oil tank to enter the rod cavity of the cleaning oil cylinder through the other bidirectional reversible filtering assembly, and enabling the oil cylinder piston rod in the cleaning oil cylinder to move towards the direction of the rodless cavity under the action of the hydraulic oil until the oil cylinder piston rod moves to completely retract into the oil cylinder cavity of the cleaning oil cylinder; s4) repeating the steps S2) to S3) until the cleaning operation of the hydraulic oil in the cleaning oil cylinder is finished.

Preferably, the method further comprises: after the cleaning operation of the hydraulic oil in the cleaning oil cylinder is finished, the compressed air component is used for sequentially pressing compressed air into the rod cavity and the rodless cavity of the cleaning oil cylinder, so that the hydraulic oil in the cleaning oil cylinder returns to an oil tank of the hydraulic station component through the two bidirectional reversible filtering assemblies; and disassembling the cleaning oil cylinder, and plugging an oil port of the cleaning oil cylinder.

According to the high-efficiency cleaning oil cylinder hydraulic station provided by the invention, the cleaning oil cylinder is cleaned through the hydraulic station component, hydraulic oil output from the hydraulic station component enters the cleaning oil cylinder for cleaning after being filtered by one bidirectional reversible filtering assembly, and the hydraulic oil output from the cleaning oil cylinder returns to the hydraulic station component after being filtered by the other bidirectional reversible filtering assembly, so that the hydraulic oil in the hydraulic station component is not polluted, the cleaning oil cylinder cleaned by the hydraulic station component can meet the set requirement of cleanliness, frequent replacement of the hydraulic oil is avoided, and the use cost is reduced.

Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:

fig. 1 is a schematic structural diagram of a hydraulic station for a high-efficiency cleaning cylinder according to an embodiment of the invention.

Description of the reference numerals

1, an oil tank; 2, a gear pump;

3, a manual reversing valve; 4, an oil outlet pipe;

5 an oil return pipe; 6 a bidirectional reversible filtration assembly;

7, cleaning the oil cylinder; 8 overflow valves.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.

The technical solution in the embodiments of the present invention is described in detail below with reference to the accompanying drawings.

In engineering machinery, generally, a cylinder has a high cleanliness requirement, a cylinder cleaning station is used for cleaning the cylinder in the traditional process, cleaning fluid pressing oil is filled in an oil tank of the cylinder cleaning station, after the cylinder cleaning station cleans the cylinder, particles in an inner cavity of the cylinder are washed into the oil tank, the cleaning fluid pressing oil can be polluted, and the oil tank is used for cleaning the cylinder to enable the cylinder to be more dirty, so that the general cylinder cleaning station cannot clean the cylinder with an expected effect, and the cleaned cylinder cannot meet the set requirement. Therefore, a hydraulic station for cleaning the oil cylinder is needed, which solves the problem that how the cleaning liquid in the oil tank presses the oil cylinder is not polluted, so that the cleaned oil cylinder can meet the set requirements.

As shown in fig. 1, the present invention provides a hydraulic station for efficiently cleaning a cylinder, comprising: the device comprises a hydraulic station component, a cleaning oil cylinder 7 and two bidirectional reversible filtering assemblies 6; the hydraulic station assembly includes: the oil pump comprises an oil tank 1, a gear pump 2, a manual reversing valve 3, an oil outlet pipe 4 and an oil return pipe 5; the oil outlet pipe 4 and the oil return pipe 5 are respectively communicated with an oil tank outlet and an oil tank oil return port of the oil tank 1, the gear pump 2 is installed on the oil outlet pipe 4, the manual reversing valve 3 is provided with P, T two valve ports on the same side and A, B two valve ports opposite to the valve ports, P, T two valve ports of the manual reversing valve 3 are respectively communicated with the oil outlet pipe 4 and the oil return pipe 5, and the A, B two valve ports are used as a hydraulic station oil outlet and a hydraulic station oil return port of the hydraulic station assembly; the rodless cavity and the rod cavity of the cleaning oil cylinder 7 are respectively communicated with A, B two valve ports of the manual reversing valve 3 through a communicating oil pipe, and the two bidirectional reversible filtering assemblies 6 are respectively arranged on the two communicating oil pipes between the cleaning oil cylinder 7 and the manual reversing valve 3.

According to the technical scheme of the invention, the hydraulic station component is used for cleaning the cleaning oil cylinder 7, hydraulic oil output from the hydraulic station component is filtered by one bidirectional reversible filtering assembly 6 and then enters the cleaning oil cylinder 7 for cleaning, and hydraulic oil output from the cleaning oil cylinder 7 is filtered by the other bidirectional reversible filtering assembly 6 and then returns to the hydraulic station component, so that the hydraulic oil in the hydraulic station component is not polluted, and the cleaning oil cylinder 7 cleaned by the hydraulic station component can meet the set requirement of cleanliness; meanwhile, frequent hydraulic oil replacement is avoided, and the use cost is reduced.

According to the technical scheme of the invention, the hydraulic station assembly comprises: the oil pump comprises an oil tank 1, a gear pump 2, a manual reversing valve 3, an oil outlet pipe 4 and an oil return pipe 5; the oil outlet pipe 4 and the oil return pipe 5 are respectively communicated with an oil tank outlet and an oil tank oil return port of the oil tank 1, the gear pump 2 is installed on the oil outlet pipe 4, the manual reversing valve 3 is provided with P, T two valve ports on the same side and A, B two valve ports opposite to the valve ports, P, T two valve ports of the manual reversing valve 3 are respectively communicated with the oil outlet pipe 4 and the oil return pipe 5, and the A, B two valve ports are used as a hydraulic station oil outlet and a hydraulic station oil return port of the hydraulic station assembly.

The mode for cleaning the oil cylinder by adopting the high-efficiency oil cylinder cleaning hydraulic station provided by the invention comprises the following steps: clean hydraulic oil is filled in the oil tank 1, the clean hydraulic oil in the oil tank 1 is pumped out through the oil outlet pipe 4 by the gear pump 2, and return oil returns to the oil tank 1 through the oil return pipe 5; p, T two valve ports of the manual reversing valve 3 are respectively communicated with the oil outlet pipe 4 and the oil return pipe 5, the manual reversing valve 3 is manually operated, so that a P valve port of the manual reversing valve 3 is communicated with a valve port A, a T valve port of the manual reversing valve 3 is communicated with a valve port B, the valve port A is an oil outlet of a hydraulic station, and the valve port B is an oil return port of the hydraulic station; and operating the valve core of the manual reversing valve 3 again to move, so that the valve port P of the manual reversing valve 3 is communicated with the valve port B, the valve port T of the manual reversing valve 3 is communicated with the valve port A, the valve port B is an oil outlet of the hydraulic station, the valve port A is an oil return port of the hydraulic station, and the flowing direction of hydraulic oil can be changed by manually operating the manual reversing valve 3.

According to the technical scheme of the invention, a rodless cavity and a rod cavity of the cleaning oil cylinder 7 are respectively communicated with A, B two valve ports of the manual reversing valve 3 through a communicating oil pipe, and the two bidirectional reversible filtering assemblies 6 are respectively arranged on the two communicating oil pipes between the cleaning oil cylinder 7 and the manual reversing valve 3.

When the manual reversing valve 3 is manually operated, a P valve port of the manual reversing valve 3 is communicated with a valve port A, when a T valve port of the manual reversing valve 3 is communicated with a valve port B, the valve port A is an oil outlet of a hydraulic station, the valve port B is an oil return port of the hydraulic station, a rodless cavity of the cleaning oil cylinder 7 is communicated with the valve port A to input clean hydraulic oil, a piston rod of the cleaning oil cylinder 7 moves towards a rod cavity, and the hydraulic oil in the rod cavity returns to the hydraulic station through the valve port B; under the condition that the piston rod of the oil cylinder moves to completely extend out of the oil cylinder cavity of the cleaning oil cylinder 7, the manual reversing valve 3 is manually operated to reverse, so that a P valve port of the manual reversing valve 3 is communicated with a B valve port, a T valve port of the manual reversing valve 3 is communicated with an A valve port, the B valve port is an oil outlet of a hydraulic station, the A valve port is an oil return port of the hydraulic station, a rod cavity of the cleaning oil cylinder 7 is communicated with the B valve port to input clean hydraulic oil, the piston rod of the cleaning oil cylinder 7 moves towards the direction of a rodless cavity, and the hydraulic oil in the rodless cavity returns to the hydraulic station through the A valve port;

because the two bidirectional reversible filtering assemblies 6 are respectively arranged on two communicated oil pipes between the cleaning oil cylinder 7 and the manual reversing valve 3, the cleaning hydraulic oil in the hydraulic station can enter the cleaning oil cylinder 7 after being filtered by the bidirectional reversible filtering assemblies 6, so that the filtered cleaning hydraulic oil enters the cleaning oil cylinder 7; the hydraulic oil output from the cleaning oil cylinder 7 can be filtered by the bidirectional reversible filtering assembly 6 and then can return to the hydraulic station, so that the hydraulic oil can be filtered by the bidirectional reversible filtering assembly 6, and cleaned impurities are removed and then the hydraulic oil returns to the oil tank 1, so that the hydraulic oil can not pollute cleaning fluid pressure oil in the oil tank 1, and the cleaned cleaning oil cylinder 7 can meet the set requirement of cleanliness.

According to one embodiment of the present invention, pressure gauges are installed on two communicating oil pipes connected to the cleaning cylinder 7, and when the piston rod reaches the end of the rod chamber or the rod-less chamber, the pressure of the communicating oil pipe corresponding to the rod chamber or the rod-less chamber will rise, so as to determine that the piston rod has completed the movement stroke, and the manual reversing valve 3 is manually operated to reverse.

According to an embodiment of the present invention, the bidirectional reversible filtering assembly 6 may be a BR series bidirectional reversible filter having 4 one-way valves, and the BR series bidirectional reversible filter has characteristics of high filtering precision, strong oil passing capability, and large dirt carrying capacity.

According to an embodiment of the present invention, preferably, the hydraulic station assembly further includes a relief pipe communicating with the flow line 4 and a relief valve 8 mounted on the relief pipe. The overflow valve 8 is a hydraulic pressure control valve, and mainly plays a role in constant pressure overflow in hydraulic equipment, can stabilize the pressure of a hydraulic system, and can perform system unloading when necessary, thereby playing a role in safety protection.

According to one embodiment of the present invention, it is preferred that both reversible filter assemblies 6 are fitted with a filter clogging alarm to prevent the filter clogging affecting the filtering effect.

According to an embodiment of the present invention, preferably, the high-efficiency cleaning cylinder hydraulic station further includes a compressed air assembly for pressing compressed air into the rodless chamber and the rod chamber of the cleaning cylinder 7, respectively, to drain hydraulic oil in the rodless chamber and the rod chamber of the cleaning cylinder 7, respectively.

According to an embodiment of the present invention, preferably, the compressed air assembly includes an air pump and an air filter, the air filter is communicated with the rodless cavity and the rod cavity of the cleaning cylinder 7, the compressed air pumped by the air pump is filtered by the air filter and then is respectively pressed into the rodless cavity and the rod cavity of the cleaning cylinder 7, and the air compressed by the air pump is filtered by the air filter and then enters the cleaning cylinder 7, so that the cleanliness of the cleaning cylinder 7 can be ensured to meet the design requirements.

According to an embodiment of the present invention, preferably, the compressed air assembly further includes two on-off valves, the two on-off valves are respectively installed on a communicating pipeline between the air cleaner and the rodless chamber and the rod chamber of the cleaning cylinder 7, and the on-off valves can cut off the communicating pipeline or connect the communicating pipeline through movement of the valve core, so as to control on-off of the communicating pipeline between the air cleaner and the rodless chamber and the rod chamber of the cleaning cylinder 7.

In practical use, the connecting pipeline for connecting the rodless cavity of the cleaning oil cylinder 7 may be first connected, compressed air may be pumped into the rodless cavity of the cleaning oil cylinder 7 to move the piston in the direction of the rod-containing cavity to discharge hydraulic oil in the rod-containing cavity, the connecting pipeline for connecting the rod-containing cavity of the cleaning oil cylinder 7 may be then disconnected, and compressed air may be pumped into the rod-containing cavity of the cleaning oil cylinder 7 to move the piston in the direction of the rodless cavity to discharge hydraulic oil in the rodless cavity.

In another aspect, the present invention provides a method for cleaning a cylinder, which is performed by using the high-efficiency cylinder cleaning hydraulic station provided by the present invention, and comprises the following steps: s1) starting a gear pump 2 in the hydraulic station assembly; s2) manually operating the manual reversing valve 3 to enable hydraulic oil in the oil tank 1 to enter a rodless cavity of the cleaning oil cylinder 7 through the bidirectional reversible filtering assembly 6, wherein an oil cylinder piston rod in the cleaning oil cylinder 7 moves towards a rod cavity under the action of the hydraulic oil; s3) under the condition that the oil cylinder piston rod moves to completely extend out of the oil cylinder cavity of the cleaning oil cylinder 7, the manual reversing valve 3 is manually operated to reverse, so that hydraulic oil in the oil tank 1 enters the rod cavity of the cleaning oil cylinder 7 through the other bidirectional reversible filtering assembly 6, and the oil cylinder piston rod in the cleaning oil cylinder 7 moves towards the direction of the rodless cavity under the action of the hydraulic oil until the oil cylinder piston rod moves to completely retract into the oil cylinder cavity of the cleaning oil cylinder 7; s4) repeating the steps S2) to S3) until the washing operation of the hydraulic oil in the washing cylinder 7 is completed.

Usually, the cleaning oil cylinder 7 performs cleaning through 5-6 back-and-forth strokes, so that the cleanliness can reach NAS7-7 level, and the cleaning effect is achieved.

According to an embodiment of the present invention, preferably, the method further comprises: after the cleaning operation of the hydraulic oil in the cleaning oil cylinder 7 is finished, the compressed air component is used for sequentially pressing compressed air into the rod cavity and the rodless cavity of the cleaning oil cylinder 7, so that the hydraulic oil in the cleaning oil cylinder 7 returns to the oil tank 1 of the hydraulic station component through the two bidirectional reversible filtering assemblies 6; and disassembling the cleaning oil cylinder 7, and plugging an oil port of the cleaning oil cylinder 7.

The cleaning oil cylinder 7 with the blocked oil port can be lifted away from the cleaning oil cylinder hydraulic station, and the next oil cylinder to be cleaned is replaced to the cleaning oil cylinder hydraulic station for installation and cleaning.

The invention aims to provide an efficient cleaning oil cylinder hydraulic station, wherein a hydraulic station component is used for cleaning a cleaning oil cylinder 7, hydraulic oil output from the hydraulic station component enters the cleaning oil cylinder 7 for cleaning after being filtered by a bidirectional reversible filtering assembly 6, the hydraulic oil output from the cleaning oil cylinder 7 returns to the hydraulic station component after being filtered by another bidirectional reversible filtering assembly 6, and the hydraulic oil in the hydraulic station component is ensured not to be polluted so as to ensure that the cleaning oil cylinder 7 cleaned by the hydraulic station component can meet the set requirement of cleanliness; meanwhile, frequent hydraulic oil replacement is avoided, and the use cost is reduced.

Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.

In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.