Hydraulic multifunctional dismounting tool

Abstract

The utility model discloses a hydraulic multifunctional dismounting tool which is characterized by comprising a valve body and a piston rod movably mounted in the valve body, the valve body and the piston rod are respectively provided with a fixed end pull lug and a ball head pull lug; the fixed end pull lug and the ball head pull lug are installed on the valve body and the piston rod in an exchangeable mode, and the multifunctional effects of disassembly, assembly and assembly are achieved respectively. The dismounting tool is compact in structure, small in overall size and convenient to carry and use; the fixed end pull lug and the ball head pull lug are installed on the valve body and the piston rod in an exchangeable mode, the screw rod piece and the ball head can be conveniently installed and detached, and therefore the multifunctional use effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic disassembly and assembly tools, in particular to a hydraulic multifunctional disassembly and assembly tool. Background Art

[0002] The connection between the screw parts and the parts installed by interference fit or interference fit during long-term use is relatively tight, which is troublesome to remove, so it is necessary to use a hydraulic removal tool to remove them. However, in the existing technology, the main body of the hydraulic removal tool used is mostly cast, with a large overall volume and a large weight, which is not convenient to carry around, and workers need to spend a lot of effort to use it. Therefore, a hydraulic multifunctional disassembly tool that can be carried around and is convenient for workers to install and disassemble screw parts is proposed. Summary of the invention

[0003] The utility model aims to solve the above problems and provides a hydraulic multifunctional disassembly and assembly tool.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic multifunctional disassembly and assembly tool, which is characterized by comprising a valve body and a piston rod movably installed in the valve body; a fixed end pull ear and a ball head pull ear are respectively installed on the valve body and the piston rod; the fixed end pull ear and the ball head pull ear can be interchangeably installed on the valve body and the piston rod, respectively realizing the multifunctional effects of disassembly and installation.

[0005] Preferably, the piston rod is also connected to a fixing ring for fixing the ball head pull ear.

[0006] Preferably, a wire retaining ring is installed between the piston rod and the ball head pull ear, and between the valve body and the fixed end pull ear to facilitate the installation of the fixed end pull ear and the ball head pull ear.

[0007] Preferably, the ball head pull ear is further provided with a plurality of limiting grooves.

[0008] Preferably, a limiting ring for limiting the position of the fixed end pull ear is further connected to the valve body.

[0009] Preferably, a tail cover and a hydraulic quick connector are also installed on the valve body; and a return spring is installed between the piston rod and the tail cover.

[0010] Preferably, a dust ring, an anti-wear ring, an open retaining ring and a sealing ring are also installed between the piston rod and the valve body.

[0011] The beneficial effects of the utility model are as follows: the disassembly and assembly tool has a compact structure, a small overall volume, and is easy to carry and use;

[0012] The fixed end pull ear and the ball head pull ear can be interchangeably installed on the valve body and the piston rod, which is convenient for installation and disassembly of the screw rod and the ball head, thereby achieving a multifunctional use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a cross-sectional view of the utility model.

[0015] Legend: 1. Valve body; 101. Limiting ring; 102. Tail cover; 103. Hydraulic quick connector; 104. Return spring; 105. Dust seal; 106. Anti-wear ring; 107. Open retaining ring; 108. Sealing ring; 2. Piston rod; 3. Fixed end pull ear; 4. Ball head pull ear; 401. Fixed ring; 402. Wire retaining ring; 403. Limiting groove. DETAILED DESCRIPTION

[0016] Below we further illustrate the hydraulic multifunctional disassembly and assembly tool described in the utility model in conjunction with the accompanying drawings.

[0017] See attached Figure 1-2 As shown, in this embodiment, a hydraulic multifunctional disassembly and assembly tool is characterized by comprising a valve body 1 and a piston rod 2 movably installed in the valve body 1; a fixed end pull ear 3 and a ball head pull ear 4 are respectively installed on the valve body 1 and the piston rod 2; the fixed end pull ear 3 and the ball head pull ear 4 can be interchangeably installed on the valve body 1 and the piston rod 2, respectively, to achieve the multifunctional effect of disassembly and installation; the fixed end pull ear 3 and the ball head pull ear 4 can be interchangeably installed on the valve body 1 and the piston rod 2, which facilitates the installation and disassembly of the screw member and the ball head, thereby achieving a multifunctional use effect.

[0018] See attached Figure 1-2 As shown, a fixing ring 401 for fixing the ball head pull ear 4 is also connected to the piston rod 2 through a thread; a wire retaining ring 402 for facilitating the installation of the fixed end pull ear 3 and the ball head pull ear 4 is installed between the piston rod 2 and the ball head pull ear 4, and between the valve body 1 and the fixed end pull ear 3; a plurality of limiting grooves 403 are also provided on the ball head pull ear 4; by installing the wire retaining ring 402 between the piston rod 2 and the ball head pull ear 4, and between the valve body 1 and the fixed end pull ear 3, the ball head pull ear 4 and the fixed end pull ear 3 are respectively fixed on the piston rod 2 and the valve body 1, thereby facilitating the limited installation of the ball head pull ear 4 and the fixed end pull ear 3.

[0019] In one embodiment, a limiting ring 101 for limiting the fixed end pull ear 3 is further connected to the valve body 1 through a thread or a wire retaining ring; the fixed end pull ear 3 on the valve body 1 is limited by the limiting ring 101, thereby facilitating the limiting of the fixed end pull ear 3 and preventing the fixed end pull ear 3 from moving during use.

[0020] See attached Figure 1-2 As shown, a tail cover 102 and a hydraulic quick connector 103 are also installed on the valve body 1; a return spring 104 is installed between the piston rod 2 and the tail cover 102; a dust ring 105, an anti-wear ring 106, an open retaining ring 107 and a sealing ring 108 are also installed between the piston rod 2 and the valve body 1.

[0021] During the use of the utility model, when disassembling the screw member, the ball head pull ear 4 is installed on the fixing ring 401 through the wire retaining ring 402, the fixed end pull ear 3 is installed on the valve body 1 through the wire retaining ring 402, the ball head pull ear 4 is attached to the flange in the disassembly direction, and at the same time, one end of the screw member is placed in the limiting groove 403 on the ball head pull ear 4, and the fixed end pull ear 3 is attached to the other end of the screw member, and then the hydraulic oil flows into the valve body 1 through the hydraulic quick connector 103, the ball head pull ear 4 is fixed, the valve body 1 drives the fixed end pull ear 3 to move along the piston rod 2, and the fixed end pull ear 3 pushes the other end of the screw member to move, thereby disassembling the screw member;

[0022] When installing the screw member, the ball head pull ear 4 is installed on the valve body 1 through the wire retaining ring 402, the fixed end pull ear 3 is installed on the fixing ring 401 through the wire retaining ring 402, the ball head pull ear 4 is attached to the flange in the installation direction, and the screw member passing through the flange is placed in the limiting groove 403 on the ball head pull ear 4, the fixed end pull ear 3 is attached to the other end of the screw member, and then the hydraulic oil flows into the valve body 1 through the hydraulic quick connector 103, the ball head pull ear 4 is fixed, the hydraulic oil pushes the piston rod 2 to move, compresses the reset spring 104, the piston rod 2 drives the fixed end pull ear 3 to move and pushes the other end of the screw member to move, the screw member is installed on the flange, and then the hydraulic oil flows out of the valve body 1 through the hydraulic quick connector 103, and the reset spring 104 drives the piston rod 2 to reset by its own elasticity.

[0023] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A hydraulic multifunctional disassembly and assembly tool, characterized in that it comprises a valve body (1) and a piston rod (2) movably mounted in the valve body (1); a fixed end pull ear (3) and a ball head pull ear (4) are respectively mounted on the valve body (1) and the piston rod (2); the fixed end pull ear (3) and the ball head pull ear (4) can be interchangeably mounted on the valve body (1) and the piston rod (2), respectively, to achieve the multifunctional effects of disassembly and assembly.

2. A hydraulic multifunctional disassembly and assembly tool according to claim 1, characterized in that: The piston rod (2) is also connected to a fixing ring (401) for fixing the ball head pull ear (4).

3. A hydraulic multifunctional disassembly and assembly tool according to claim 1, characterized in that: A wire retaining ring (402) is installed between the piston rod (2) and the ball head pull ear (4), and between the valve body (1) and the fixed end pull ear (3) to facilitate the installation of the fixed end pull ear (3) and the ball head pull ear (4).

4. A hydraulic multifunctional disassembly and assembly tool according to claim 3, characterized in that: The ball head pull ear (4) is also provided with a plurality of limiting grooves (403).

5. The hydraulic multifunctional disassembly and assembly tool according to claim 3, characterized in that: The valve body (1) is also connected to a limiting ring (101) for limiting the position of the fixed end pull ear (3).

6. The hydraulic multifunctional disassembly and assembly tool according to claim 1, characterized in that: A tail cover (102) and a hydraulic quick connector (103) are also installed on the valve body (1); and a return spring (104) is installed between the piston rod (2) and the tail cover (102).

7. A hydraulic multifunctional disassembly and assembly tool according to claim 6, characterized in that: A dust ring (105), an anti-wear ring (106), an opening retaining ring (107) and a sealing ring (108) are also installed between the piston rod (2) and the valve body (1).

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