Electric control oil cylinder positioning device

Abstract

The utility model belongs to the technical field of hydraulic oil cylinders, and discloses an electric control oil cylinder positioning device, an oil inlet end and an oil outlet end of a hydraulic oil cylinder are respectively communicated with a hydraulic oil tank through a hydraulic oil loop, and an electric stop valve is connected in the middle of the hydraulic oil loop; the oil inlet end of the hydraulic oil cylinder communicates with the bottom of the hydraulic oil tank through a hydraulic oil loop, and the oil outlet end of the hydraulic oil cylinder communicates with the side face of the hydraulic oil tank through the hydraulic oil loop. The electric stop valve is connected to the middle of the hydraulic oil loop, when the electric stop valve is opened, the hydraulic rod of the hydraulic oil cylinder is pushed by external force to stretch out and draw back, and hydraulic oil flows in the hydraulic oil loop. When the electric stop valve is closed, hydraulic oil cannot enter or flow out of the hydraulic oil cylinder due to disconnection of the hydraulic oil loop, and fixed-point stopping of the telescopic position of the hydraulic rod of the hydraulic oil cylinder is achieved. The overall structure is simple, the response speed is high, position deviation can be reduced, and the positioning accuracy is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic oil cylinders, and in particular relates to an electric-controlled oil cylinder positioning device. Background Art

[0002] As an actuator, the hydraulic cylinder drives the piston rod to move linearly through the pressure of the hydraulic oil, thereby driving the load to achieve the expected displacement.

[0003] Traditional hydraulic systems are difficult to achieve high-precision positioning control due to factors such as hydraulic oil pressure fluctuations, pipeline resistance, and cylinder friction. These factors can cause position deviations in the cylinder during movement, affecting the accuracy of positioning. In the absence of real-time position feedback, the controller needs to rely on complex algorithms and models to predict and compensate for the position error of the cylinder. This not only increases the complexity of the control system, but may also lead to poor control effects. The response speed of the hydraulic system is relatively slow, and when rapid positioning or position adjustment is required, the traditional hydraulic system may not be able to meet the requirements. Therefore, the utility model provides an electronically controlled cylinder positioning device, which is used to achieve the purpose of fixed-point stopping of the cylinder at the telescopic position during work. Utility Model Content

[0004] In order to overcome the problems existing in the related art, the utility model provides an electric-controlled oil cylinder positioning device.

[0005] The technical solution of the utility model is as follows:

[0006] An electronically controlled oil cylinder positioning device is provided with:

[0007] Hydraulic cylinder and electric stop valve;

[0008] The oil inlet and outlet ends of the hydraulic cylinder are respectively connected to the hydraulic oil tank through a hydraulic oil circuit;

[0009] An electric stop valve is connected in the middle of the hydraulic oil circuit.

[0010] In one embodiment, the oil inlet end of the hydraulic cylinder is connected to the bottom of the hydraulic oil tank through a hydraulic oil circuit, and the oil outlet end of the hydraulic cylinder is connected to the side of the hydraulic oil tank through the hydraulic oil circuit.

[0011] In combination with the above technical solution, the beneficial effects of the utility model are as follows:

[0012] In the present utility model, an electric shut-off valve is connected in the middle of the hydraulic oil circuit. When the electric shut-off valve is open, the hydraulic rod of the hydraulic cylinder expands and contracts under the push of an external force, and the hydraulic oil flows in the hydraulic oil circuit. When the electric shut-off valve is closed, since the hydraulic oil circuit is disconnected, the hydraulic oil can no longer enter or flow out of the hydraulic cylinder, achieving the purpose of stopping the expansion and contraction position of the hydraulic rod of the hydraulic cylinder at a fixed point. The overall structure is simple, the response speed is fast, which helps to reduce the position deviation and improve the positioning accuracy.

[0013] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the disclosure of the present utility model. Brief Description of the Drawings

[0014] The drawings herein are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure.

[0015] Figure 1 is a schematic structural diagram of the electric control cylinder positioning device provided by an embodiment of the present utility model;

[0016] In the figure: 1, hydraulic cylinder; 2, electric shut-off valve; 3, hydraulic oil tank; 4, hydraulic oil circuit. Detailed Embodiment

[0017] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0018] As Figure 1 shown, the electric control cylinder positioning device provided by an embodiment of the present utility model includes a hydraulic cylinder 1 and an electric shut-off valve 2.

[0019] The oil inlet end and the oil outlet end of the hydraulic cylinder 1 are respectively communicated with the hydraulic oil tank 3 through a hydraulic oil circuit 4; an electric shut-off valve 2 is connected in the middle of the hydraulic oil circuit 4.

[0020] In the embodiment of the present utility model, the oil inlet end of the hydraulic cylinder 1 is communicated with the bottom of the hydraulic oil tank 3 through the hydraulic oil circuit 4, and the oil outlet end of the hydraulic cylinder 1 is communicated with the side of the hydraulic oil tank 3 through the hydraulic oil circuit 4.

[0021] In the embodiment of the present utility model, the oil inlet end of the hydraulic cylinder 1 is connected to the oil pump 5 and the bottom of the hydraulic oil tank 3 through the hydraulic oil circuit 4, and the oil outlet end is communicated with the side of the hydraulic oil tank 3 through the electric stop valve 2, realizing a closed-loop control system for the hydraulic cylinder. This not only ensures the recycling of hydraulic oil but also, through the precise control of the electric stop valve 2, realizes the precise adjustment and positioning of the movement state of the hydraulic cylinder 1, improving the stability and response speed of the system.

[0022] When the present utility model is in use, the oil pump 5 is driven to rotate by an electric motor. The oil pump 5 sucks hydraulic oil from the bottom of the hydraulic oil tank 3 and transports it to the oil inlet end of the hydraulic cylinder 1 through the hydraulic oil circuit 4. Under the action of the oil pump 5, the hydraulic oil generates a certain pressure, and this pressure enters the cylinder body through the oil inlet of the hydraulic cylinder 1, pushing the piston and the hydraulic rod 7 to perform linear motion. When the electric stop valve 2 is open, the hydraulic rod of the hydraulic cylinder 1 expands and contracts under the push of an external force, and the hydraulic oil flows in the hydraulic oil circuit 4. When the electric stop valve 2 is closed, since the hydraulic oil circuit 4 is disconnected, the hydraulic oil can no longer enter or flow out of the hydraulic cylinder 1, achieving the purpose of stopping the expansion and contraction position of the hydraulic rod of the hydraulic cylinder 1 at a fixed point.

[0023] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features, and these modifications or replacements should all be covered within the protection scope of the present utility model.

Claims

1. An electronically controlled oil cylinder positioning device, characterized in that, The described electric control oil cylinder positioning device is provided with: a hydraulic oil cylinder (1) and an electric stop valve (2); The oil inlet end and the oil outlet end of the hydraulic oil cylinder (1) are respectively communicated with a hydraulic oil tank (3) through a hydraulic oil circuit (4); An electric stop valve (2) is connected in the middle of the hydraulic oil circuit (4).

2. The electric control oil cylinder positioning device according to claim 1, wherein The oil inlet end of the hydraulic oil cylinder (1) is communicated with the bottom of the hydraulic oil tank (3) through the hydraulic oil circuit (4), and the oil outlet end of the hydraulic oil cylinder (1) is communicated with the side surface of the hydraulic oil tank (3) through the hydraulic oil circuit (4).

Images