Buffer structure of hydraulic hoist

Abstract

The utility model relates to the technical field of hydraulic hoists, in particular to a buffer structure of a hydraulic hoist, which comprises a hoist shell, a piston rod, a damping rod and a buffer return spring, the damping rod is arranged in the hoist shell, the upper end of the damping rod is sleeved with the buffer return spring, the upper end of the damping rod is fixedly connected with a piston, and the piston is fixedly connected with the piston. A limiting block is arranged at the upper end of the piston, a piston rod is fixedly connected into the piston, and one side of the hoist shell is connected with an oil tank. Through the structure, an effective energy absorption mechanism is provided through combination of the damping rod and the buffer return spring, when the piston moves under the action of pressure, the damping rod generates resistance through the buffer return spring to slow down the movement speed of the piston, so that impact force is reduced, and the limiting block ensures that the movement of the piston is within a safe range; damage possibly caused by excessive movement is prevented, the stability and the service life of equipment are improved, and meanwhile the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic hoists, in particular to a buffer structure of a hydraulic hoist. Background Art

[0002] A hydraulic gate hoist is a mechanical device that uses hydraulic pressure to open or close. It is mainly composed of a hydraulic cylinder, a hydraulic pump, a control valve, and a fuel tank. When working, the hydraulic pump sends the hydraulic oil pressure in the fuel tank to the hydraulic cylinder, and controls the movement of the piston in the hydraulic cylinder by adjusting the control valve, thereby realizing the opening and closing of the gate hoist. During the operation of the hydraulic gate hoist in the related technology, due to the lack of an effective buffering mechanism, a large impact force is often generated when starting or stopping, which not only affects the stability and accuracy of the equipment, but also may cause damage to the equipment structure, shorten the service life, and increase maintenance costs. In addition, the hydraulic gate hoist is often unable to achieve precise control of the flow of oil during operation, which limits the working efficiency and response speed of the gate hoist, and also reduces the reliability of the system. In view of this, it is necessary to improve the structure of the current hydraulic gate hoist to solve the above problems;

[0003] The above information disclosed in this Background section is only for understanding the background of the present inventive concept and therefore it may contain information that does not constitute prior art. Utility Model Content

[0004] The purpose of the utility model is to provide a buffer structure of a hydraulic gate hoist to solve the problem that the hydraulic gate hoist proposed in the above background technology often generates a large impact force when starting or stopping due to the lack of an effective buffer mechanism during operation, which not only affects the stability and accuracy of the equipment, but also may cause damage to the equipment structure, shorten the service life, and increase maintenance costs. In addition, the hydraulic gate hoist is often unable to accurately control the flow of oil during operation, which limits the working efficiency and response speed of the gate hoist and also reduces the reliability of the system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A buffer structure of a hydraulic gate hoist comprises a gate hoist housing, a piston rod, a damping rod and a buffer return spring. A damping rod is arranged inside the gate hoist housing, a buffer return spring is sleeved on the upper end of the damping rod, the upper end of the damping rod is fixedly connected to a piston, a limiting block is arranged on the upper end of the piston, the inside of the piston is fixedly connected to the piston rod, and one side of the gate hoist housing is connected to an oil tank.

[0007] As a preferred technical solution, an oil pump motor is provided at the lower end of the oil tank, the upper end of the oil pump motor is connected to the oil pump, an oil hole is provided inside the oil tank, the oil hole passes through the oil tank and is connected to the opening and closing machine housing, and a solenoid valve is provided inside the oil hole.

[0008] As a preferred technical solution, a servo motor is provided at the upper end of the gate hoist housing, the servo motor is connected to the piston rod through a coupling, an upper flange is provided at the upper end of the gate hoist housing, and a lower flange is provided at the lower end of the gate hoist housing.

[0009] As a preferred technical solution, the lower end of the gate opening and closing machine housing is fixedly connected to the base plate, and the piston rod passes through the base plate and is fixedly connected to the hanging head.

[0010] As a preferred technical solution, a controller is provided on one side of the oil tank, and the controller is electrically connected to the servo motor, the oil pump, the oil pump motor, and the solenoid valve.

[0011] The beneficial effects of the utility model are:

[0012] Through this structure, the combination of the damping rod and the buffer return spring provides an effective energy absorption mechanism. When the piston moves under pressure, the damping rod generates resistance through the buffer return spring, slowing down the movement speed of the piston, thereby reducing the impact force. The limit block ensures that the movement of the piston is within a safe range, preventing damage that may be caused by excessive movement, improving the stability and service life of the equipment, and reducing maintenance costs. The connection between the oil tank and the gate hoist housing and the configuration of the oil pump motor and the oil pump form a complete hydraulic system. The solenoid valve makes it possible to accurately control the flow of oil, thereby realizing precise adjustment of the movement speed and force of the gate hoist, improving the working efficiency and response speed of the gate hoist, and also enhancing the reliability of the hydraulic gate hoist. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a buffer structure of a hydraulic gate hoist proposed by the utility model;

[0014] Figure 2 This is a structural schematic diagram of a buffer structure of a hydraulic gate hoist proposed by the utility model;

[0015] Figure 3 A buffer structure of a hydraulic gate hoist proposed by the utility model Figure 2 A is an enlarged view of the middle image.

[0016] In the figure: 1 gate housing, 2 upper flange, 3 piston rod, 4 servo motor, 5 coupling, 6 oil tank, 7 controller, 8 oil pump, 9 oil pump motor, 10 damping rod, 11 lower flange, 12 bottom plate, 13 piston, 14 hanging head, 15 oil hole, 16 solenoid valve, 17 limit block, 18 buffer return spring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] Reference Figure 1-3 A buffer structure of a hydraulic gate hoist includes a gate hoist housing 1, a piston rod 3, a damping rod 10 and a buffer return spring 18. The damping rod 10 is arranged inside the gate hoist housing 1, and the buffer return spring 18 is sleeved on the upper end of the damping rod 10. The upper end of the damping rod 10 is fixedly connected to the piston 13, and a limiting block 17 is arranged on the upper end of the piston 13. The inside of the piston 13 is fixedly connected to the piston rod 3.

[0021] Through this design, the combination of the damping rod 10 and the buffer return spring 18 provides an effective energy absorption mechanism. When the piston 13 moves under pressure, the damping rod 10 generates resistance through the buffer return spring 18, slowing down the movement speed of the piston 13, thereby reducing the impact force. The limit block 17 ensures that the movement of the piston 13 is within a safe range, preventing damage that may be caused by excessive movement, improving the stability and service life of the equipment, and reducing maintenance costs.

[0022] Among them, one side of the gate opening and closing machine housing 1 is connected to the oil tank 6, the lower end of the oil tank 6 is provided with an oil pump motor 9, the upper end of the oil pump motor 9 is connected to the oil pump 8, the inside of the oil tank 6 is provided with an oil hole 15, the oil hole 15 passes through the oil tank 6 and is connected to the gate opening and closing machine housing 1, and the inside of the oil hole 15 is provided with a solenoid valve 16.

[0023] Through this design, the connection between the oil tank 6 and the gate hoist housing 1 and the configuration of the oil pump motor 9 and the oil pump 8 form a complete hydraulic system. The solenoid valve 16 allows the flow of oil to be accurately controlled, thereby achieving precise adjustment of the movement speed and force of the gate hoist, improving the working efficiency and response speed of the gate hoist, and also enhancing the reliability of the hydraulic gate hoist.

[0024] In other embodiments, a servo motor 4 is provided at the upper end of the gate hoist housing 1, the servo motor 4 is connected to the piston rod 3 through a coupling 5, an upper flange 2 is provided at the upper end of the gate hoist housing 1, a lower flange 11 is provided at the lower end of the gate hoist housing 1, the lower end of the gate hoist housing 1 is fixedly connected to a base plate 12, and the piston rod 3 passes through the base plate 12 and is fixedly connected to a hanging head 14.

[0025] Through this design, the servo motor 4 provides precise control capability for the gate hoist. The servo motor 4 is connected to the piston rod 3 through the coupling 5, and can precisely control the position and speed of the piston rod 3, thereby achieving more precise opening and closing operations. The arrangement of the upper flange 2 and the lower flange 11 ensures the stability of the entire mechanism and improves the operating accuracy and stability of the gate hoist.

[0026] In other embodiments, a controller 7 is provided on one side of the oil tank 6 , and the controller 7 is electrically connected to the servo motor 4 , the oil pump 8 , the oil pump motor 9 , and the solenoid valve 16 .

[0027] In this embodiment, the combination of the damping rod 10 and the buffer return spring 18 provides an effective energy absorption mechanism. When the piston 13 moves under pressure, the damping rod 10 generates resistance through the buffer return spring 18, slowing down the movement speed of the piston 13, thereby reducing the impact force. The limit block 17 ensures that the movement of the piston 13 is within a safe range, preventing damage that may be caused by excessive movement, improving the stability and service life of the equipment, and reducing maintenance costs. The connection between the oil tank 6 and the gate hoist housing 1 and the configuration of the oil pump motor 9 and the oil pump 8 form a complete hydraulic system. The solenoid valve 16 makes it possible to accurately control the flow of oil, thereby realizing precise adjustment of the movement speed and force of the gate hoist, improving the working efficiency and response speed of the gate hoist, and also enhancing the reliability of the hydraulic gate hoist.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A buffer structure of a hydraulic gate hoist, comprising a gate hoist housing (1), a piston rod (3), a damping rod (10) and a buffer return spring (18), characterized in that: A damping rod (10) is arranged inside the hoist housing (1), a buffer return spring (18) is sleeved on the upper end of the damping rod (10), the upper end of the damping rod (10) is fixedly connected to the piston (13), a limit block (17) is arranged on the upper end of the piston (13), the interior of the piston (13) is fixedly connected to the piston rod (3), and one side of the hoist housing (1) is connected to an oil tank (6).

2. The buffer structure of the hydraulic hoist according to claim 1 is characterized in that: An oil pump motor (9) is disposed at the lower end of the oil tank (6), the upper end of the oil pump motor (9) is connected to the oil pump (8), an oil hole (15) is disposed inside the oil tank (6), the oil hole (15) penetrates the oil tank (6) and is connected to the housing (1) of the hoist, and a solenoid valve (16) is disposed inside the oil hole (15).

3. The buffer structure of the hydraulic hoist according to claim 1 is characterized in that: A servo motor (4) is disposed at the upper end of the gate hoist housing (1), and the servo motor (4) is connected to a piston rod (3) via a coupling (5). An upper flange (2) is disposed at the upper end of the gate hoist housing (1), and a lower flange (11) is disposed at the lower end of the gate hoist housing (1).

4. The buffer structure of the hydraulic hoist according to claim 1, characterized in that: The lower end of the gate hoist housing (1) is fixedly connected to a base plate (12), and the piston rod (3) passes through the base plate (12) and is fixedly connected to a hanging head (14).

5. The buffer structure of the hydraulic hoist according to claim 1, characterized in that: A controller (7) is provided on one side of the oil tank (6), and the controller (7) is electrically connected to the servo motor (4), the oil pump (8), the oil pump motor (9), and the solenoid valve (16).

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