Oil tank assembly for electro-hydraulic integrated push rod

Abstract

The oil tank assembly for the electro-hydraulic integrated push rod comprises an oil tank body, and an oil tank inner cavity is formed in the center of the oil tank body. A mounting flange conveniently connected with a hydraulic cylinder is arranged at the front end of the oil tank main body, and a lug plate conveniently connected with a valve block is arranged on the peripheral side of the tail end of the oil tank main body; two oil tank oil conveying pipes which are oppositely arranged are arranged on the side wall of the oil tank body, oil outlets of the oil tank oil conveying pipes are connected with oil pipes on the hydraulic cylinder, and oil inlets of the oil tank oil conveying pipes are connected with the valve block; an oil suction pipe communicated with the two-way gear pump is arranged on the side wall of the oil tank body, and the other end of the oil suction pipe is communicated with the valve block. The connecting flange and the lug plate are arranged at the two ends of the oil tank body respectively, the oil tank assembly can be detachably connected with a hydraulic cylinder and a hydraulic control valve conveniently, internal components of the oil tank assembly can be independently overhauled, oil ways are integrated in the side wall of the oil tank body, and the oil ways can be prevented from being exposed in the external environment for a long time to be aged.

Description

Technical Field

[0001] This utility model relates to the field of electro-hydraulic actuator technology, specifically to an oil tank assembly for an electro-hydraulic integrated actuator. Background Technology

[0002] Electro-hydraulic actuators are hydraulically driven manipulators that integrate mechanics, electricity, and hydraulics. They are suitable for reciprocating push-pull and linear / rotational movements at a certain angle. They are universal drives, similar to servo motors and cylinders, and are widely used in metallurgy, mining, power, coal, machinery, transportation, grain, chemical, cement, water conservancy, building materials, and transportation industries.

[0003] During operation, the electro-hydraulic actuator controls the forward and reverse rotation of the servo motor to drive the bidirectional gear pump to output pressure oil in both directions. This oil is then sent to the cylinder via the hydraulic control valve, thus realizing the reciprocating motion of the cylinder piston rod and achieving its basic working principle. However, existing oil tank assemblies are mainly integrated with the hydraulic cylinder and hydraulic control valve, and cannot be separately connected to the hydraulic cylinder and hydraulic control valve to allow for individual maintenance of the internal components of the oil tank assembly and simplify the maintenance process. Therefore, an oil tank assembly that can be separately connected to the hydraulic cylinder and hydraulic control valve is needed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an oil tank assembly for an electro-hydraulic integrated push rod, which can be separately connected to the hydraulic cylinder and hydraulic control valve, so as to facilitate the individual maintenance of the internal components of the oil tank assembly.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0006] An oil tank assembly for an electro-hydraulic integrated actuator includes an oil tank body with an inner cavity at its center; a mounting flange for easy connection to a hydraulic cylinder is provided at the front end of the oil tank body, and ear plates for easy connection to a valve block are provided on the periphery of the rear end of the oil tank body; two oil supply pipes are provided on the side wall of the oil tank body, with their outlets connected to oil pipes on the hydraulic cylinder and their inlets connected to the valve block; and a suction pipe for communication with a bidirectional gear pump is provided on the side wall of the oil tank body, with the other end of the suction pipe connected to the valve block.

[0007] The aforementioned oil tank assembly for an electro-hydraulic integrated actuator is further provided with an oil tank inlet pipe and an oil tank vent seat that communicate with the inner cavity of the oil tank on the side wall of the main body of the oil tank, and the oil tank inlet pipe is connected to the oil tank.

[0008] The above-mentioned oil tank assembly for an electro-hydraulic integrated actuator has a base plug at the front end of the inner cavity of the oil tank, a piston installed on the inner side of the inner cavity of the oil tank near the base plug, and the piston and the base plug are connected by a spring; an exhaust hole is provided on the side wall of the oil tank body located between the base plug and the piston.

[0009] The aforementioned oil tank assembly for an electro-hydraulic integrated actuator has two feet on the outer side of the oil tank body for supporting the oil tank body.

[0010] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0011] This utility model provides an oil tank assembly for an electro-hydraulic integrated push rod. By setting connecting flanges and ear plates at both ends of the oil tank body, it is easy to detachably connect to the hydraulic cylinder and hydraulic control valve, thereby allowing for separate maintenance of the internal components of the oil tank assembly. Furthermore, by integrating the oil circuits inside the side wall of the oil tank body, it is possible to avoid the oil circuits from aging due to long-term exposure to the external environment. Attached Figure Description

[0012] Figure 1 This is a side view of the present invention;

[0013] Figure 2 for Figure 1 Sectional view along line AA in the middle;

[0014] Figure 3 for Figure 1 BB-direction sectional view in the middle;

[0015] Figure 4 This is a partial cross-sectional view of the present invention;

[0016] Figure 5 This is a schematic diagram of the specific structure of the oil suction pipe described in this utility model.

[0017] Among them: 2300. Fuel tank body, 2301. Fuel tank inner cavity, 2302. Fuel suction pipe, 2303. Foot, 2304. Fuel tank oil delivery pipe, 2305. Fuel tank oil inlet pipe, 2306. Fuel tank exhaust seat, 2307. Ear plate, 2308. Exhaust port. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] An oil tank assembly for an electro-hydraulic integrated actuator, such as Figures 1 to 5 As shown, it includes an oil tank body 2300, an oil tank cavity 2301 is provided at the center of the oil tank body 2300, and an installation flange is provided at the front end of the oil tank body 2300 to facilitate connection with the hydraulic cylinder.

[0020] Two feet 2303 are provided on the outside of the fuel tank body 2300 to support the fuel tank body 2300.

[0021] The rear end of the oil tank body 2300 is provided with a lug plate 2307 for easy connection with the valve block. The lug plate 2307 is connected to the valve block by a bolt assembly.

[0022] Two oil tank supply pipes 2304 are provided on the side wall of the oil tank body 2300, which are arranged opposite to each other. The oil outlet of the oil tank supply pipe 2304 is connected to the oil pipe on the hydraulic cylinder, and the oil inlet of the oil tank supply pipe 2304 is connected to the valve block, which is used to supply oil to the hydraulic cylinder and drive the piston rod to move.

[0023] An oil suction pipe 2302 connected to a bidirectional gear pump is provided on the side wall of the oil tank body 2300. The other end of the oil suction pipe 2302 is connected to a valve block, which facilitates the delivery of oil in the inner cavity 2301 of the oil tank to the bidirectional gear pump, and then to the oil tank delivery pipe 2304 via the valve block.

[0024] The side wall of the main body 2300 of the oil tank is also provided with an oil tank inlet pipe 2305 and an oil tank vent seat 2306 that are connected to the inner cavity 2301 of the oil tank. The oil tank inlet pipe 2305 is connected to the oil tank and is used to deliver oil to the inner cavity of the oil tank. The oil tank vent seat 2306 is used to balance the pressure in the inner cavity of the oil tank.

[0025] A base plug is provided at the front end of the inner cavity 2301 of the oil tank to seal the inner cavity of the oil tank. A piston is installed on the inner side of the inner cavity 2301 of the oil tank near the base plug, and the piston is connected to the base plug by a spring.

[0026] An exhaust port 2308 is provided on the side wall of the oil tank body 2300 located between the base plug and the piston, which can balance the pressure on both sides of the piston when the piston moves.

[0027] This utility model provides an oil tank assembly for an electro-hydraulic integrated push rod. By setting connecting flanges and ear plates at both ends of the oil tank body, it is easy to detachably connect to the hydraulic cylinder and hydraulic control valve, thereby allowing for separate maintenance of the internal components of the oil tank assembly. Furthermore, by integrating the oil circuits inside the side wall of the oil tank body, it is possible to avoid the oil circuits from aging due to long-term exposure to the external environment.

Claims

1. A hydraulic tank assembly for an electro-hydraulic integrated actuator, characterized in that: The system includes an oil tank body (2300), with an oil tank cavity (2301) at its center; a mounting flange for easy connection to a hydraulic cylinder is provided at the front end of the oil tank body (2300), and an ear plate (2307) for easy connection to a valve block is provided on the circumference of the rear end of the oil tank body (2300); two oil tank supply pipes (2304) are provided on the side wall of the oil tank body (2300), with the oil outlet of the oil tank supply pipes (2304) connected to the oil pipes on the hydraulic cylinder, and the oil inlet of the oil tank supply pipes (2304) connected to the valve block; an oil suction pipe (2302) for communication with a bidirectional gear pump is provided on the side wall of the oil tank body (2300), and the other end of the oil suction pipe (2302) is connected to the valve block.

2. The oil tank assembly for an electro-hydraulic integrated actuator according to claim 1, characterized in that: The oil tank body (2300) is also provided with an oil tank inlet pipe (2305) and an oil tank vent seat (2306) that are connected to the oil tank cavity (2301) on the side wall. The oil tank inlet pipe (2305) is connected to the oil tank.

3. The oil tank assembly for an electro-hydraulic integrated actuator according to claim 1, characterized in that: A base plug is provided at the front end of the inner cavity (2301) of the oil tank. A piston is installed on the inner side of the inner cavity (2301) of the oil tank near the base plug. The piston and the base plug are connected by a spring. An exhaust hole (2308) is provided on the side wall of the main body (2300) of the oil tank located between the base plug and the piston.

4. The oil tank assembly for an electro-hydraulic integrated actuator according to claim 1, characterized in that: The outer side of the fuel tank body (2300) is provided with two feet (2303) for supporting the fuel tank body (2300).

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