U-shaped bayonet pin pulling device of mining hydraulic system

Abstract

The utility model belongs to the field of mechanical equipment, and particularly discloses a mining hydraulic system U-shaped bayonet pin pulling device which comprises a base, a guide rail stand column is fixedly installed on one side of the upper end face of the base, a hydraulic cylinder is fixedly installed on the other side of the upper end face of the base, and the guide rail stand column is connected with one end of a movable plate in a sliding mode. The other end of the movable plate is connected with the end of a piston rod of the hydraulic cylinder, a pulling piece is fixed to the side, away from the guide rail stand column, of the movable plate, the piston rod of the hydraulic cylinder stretches out and draws back to drive the movable plate to ascend and descend along the guide rail stand column, then the pulling piece is driven to ascend and descend, and pulling of the U-shaped clamping pin is achieved. The piston rod of the hydraulic cylinder stretches out and draws back to drive the movable plate to ascend and descend along the guide rail stand column, so that the U-shaped bayonet lock is pulled up, and the operation process is simple and easy to master.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical equipment, and in particular relates to a U-shaped bayonet pulling device for a mining hydraulic system. Background Art

[0002] Background and function: The hydraulic system pressure of the coal mining face in a coal mine reaches 31.5 MPa. There are many connecting pipes in the system. Each connection between the high-pressure pipes and the connection between the pipes and the valve body uses a U-shaped bayonet with a pipe joint for clamping connection. Due to its own elasticity, long-term rusting in a humid environment, and high pressure, when disassembling and replacing the pipes, the U-shaped bayonet is time-consuming and labor-intensive and difficult to pull out without special tools, which seriously restricts safe production. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a U-shaped bayonet lifting device for a mining hydraulic system to solve the problems pointed out in the above background technology.

[0004] In order to achieve the above-mentioned utility model purpose, the technical solutions adopted are as follows:

[0005] A U-shaped pin lifting device for a mining hydraulic system includes a base, a guide rail column is fixedly installed on one side of the upper end surface of the base, a hydraulic cylinder is fixedly installed on the other side of the upper end surface of the base, one end of a movable plate is slidably connected to the guide rail column, the other end of the movable plate is connected to the end of the piston rod of the hydraulic cylinder, and a lifting piece is fixed on the side of the movable plate away from the guide rail column. The movable plate is driven to rise and fall along the guide rail column by the extension and contraction of the piston rod of the hydraulic cylinder, thereby driving the lifting piece to rise and fall, thereby realizing the lifting of the U-shaped pin.

[0006] As a further improvement of the present invention, a guide hole is provided on the movable plate, a guide sleeve is installed at the upper end of the guide hole, and the guide rail column passes through the guide hole and the guide sleeve.

[0007] As a further improvement of the present invention, the lifting member includes a connecting piece, a lifting rod and a lifting hook, one end of the connecting piece is connected to the movable plate, the other end of the connecting piece is connected to the upper end of the lifting rod, and the lifting hook is located at the lower end of the lifting rod.

[0008] As a further improvement of the present invention, the hydraulic cylinder adopts a manual oil pressure cylinder.

[0009] As a further improvement of the present invention, a limit stop ring is provided at the upper end of the guide rail column.

[0010] The beneficial effects of the utility model are:

[0011] 1. Simple structure and easy operation: The movable plate is driven to rise and fall along the guide rail column by the extension and contraction of the piston rod of the hydraulic cylinder, thereby realizing the pulling out of the U-shaped bayonet. The operation process is simple and easy to master.

[0012] 2. Safe and efficient: The hydraulic drive has strong power and fast starting and pulling speed, which improves work efficiency. At the same time, the hydraulic drive reduces the labor intensity of the operator and improves the safety of the operation.

[0013] 3. Precise positioning: A guide hole is opened on the movable plate, and the guide rail column passes through the guide hole and the guide sleeve, which ensures the stability of the lifting and lowering parts during the rising and falling process, and avoids inaccurate positioning due to shaking.

[0014] 4. Strong applicability: The design of the puller enables it to adapt to different types of U-shaped pins and has strong versatility.

[0015] 5. Prevent overload: A limit ring is set at the upper end of the guide rail column to prevent the movable plate from rising too high and avoid equipment damage due to overload. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the pulling member of the utility model. DETAILED DESCRIPTION

[0019] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0020] In order to enable those skilled in the art to better understand the present invention, the following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0021] like Figure 1-2As shown, a U-shaped pin lifting device for a mining hydraulic system includes a base 1, a guide rail column 2 is fixedly installed on one side of the upper end surface of the base 1, and a hydraulic cylinder 3 is fixedly installed on the other side of the upper end surface of the base 1. One end of a movable plate 4 is slidably connected to the guide rail column 2, and the other end of the movable plate 4 is connected to the piston rod end of the hydraulic cylinder 3, and a lifting piece 5 is fixed on the side of the movable plate 4 away from the guide rail column 2. The piston rod of the hydraulic cylinder 3 is extended and retracted to drive the movable plate 4 to rise and fall along the guide rail column 2, thereby driving the lifting piece 5 to rise and fall, thereby realizing the lifting of the U-shaped pin.

[0022] A guide hole is formed on the movable plate 4 , a guide sleeve 6 is installed at the upper end of the guide hole, and the guide rail column 2 passes through the guide hole and the guide sleeve 6 .

[0023] The lifting member 5 includes a connecting piece 51, a lifting rod 52 and a lifting hook 53. One end of the connecting piece 51 is connected to the movable plate 4, and the other end of the connecting piece 51 is connected to the upper end of the lifting rod 52. The lifting hook 53 is located at the lower end of the lifting rod 52.

[0024] The hydraulic cylinder 3 is a manual oil pressure cylinder.

[0025] A limit stop ring 7 is provided at the upper end of the guide rail column 2 .

[0026] The device achieves the lifting and releasing operation of the U-shaped bayonet through a guide rail column 2 and a hydraulic cylinder 3 fixed to a base 1, and a movable plate 4 connected to the end of the piston rod of the hydraulic cylinder 3. The movable plate 4 is designed to slide along the guide rail column 2, thereby driving the lifting member 5 to move up and down. This design simplifies the operation process, allows workers to quickly learn, and improves work efficiency.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, improvements, component splits, or combinations that fall within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A U-shaped bayonet lifting device for a mining hydraulic system, comprising a base, characterized in that: A guide rail column is fixedly installed on one side of the upper end surface of the base, and a hydraulic cylinder is fixedly installed on the other side of the upper end surface of the base. One end of the movable plate is slidably connected to the guide rail column, and the other end of the movable plate is connected to the end of the piston rod of the hydraulic cylinder. A lifting piece is fixed on the side of the movable plate away from the guide rail column. The movable plate is driven to rise and fall along the guide rail column by the extension and contraction of the piston rod of the hydraulic cylinder, thereby driving the lifting piece to rise and fall, thereby realizing the pulling out of the U-shaped pin.

2. A U-shaped bayonet lifting device for a mining hydraulic system according to claim 1, characterized in that: A guide hole is provided on the movable plate, a guide sleeve is installed at the upper end of the guide hole, and the guide rail column passes through the guide hole and the guide sleeve.

3. A U-shaped bayonet lifting device for a mining hydraulic system according to claim 1, characterized in that: The lifting member includes a connecting piece, a lifting rod and a lifting hook, one end of the connecting piece is connected to the movable plate, the other end of the connecting piece is connected to the upper end of the lifting rod, and the lifting hook is located at the lower end of the lifting rod.

4. A U-shaped bayonet lifting device for a mining hydraulic system according to claim 2, characterized in that: The hydraulic cylinder is a manual oil pressure cylinder.

5. A U-shaped bayonet lifting device for a mining hydraulic system according to claim 2, characterized in that: A limit stop ring is provided at the upper end of the guide rail column.

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