CN210939016U - A chain wrench with jaws - Google Patents

Abstract

The utility model discloses a chain spanner with jaw, including sleeve pipe, lead screw, two chains, the lead screw is arranged in the sleeve pipe hole and all stretches out the sleeve pipe with sleeve pipe threaded connection and both ends outside, and the one end of two chains is fixed respectively and is equipped with the jaw, and the other end of two chains links together through a detachable pin hub connection, and two chains are detachable respectively and are installed in the sleeve pipe both sides near the position of jaw. Compared with the prior art, the utility model has the following advantages: the large-scale rotating component can be conveniently and quickly disassembled and assembled.

Description

A chain wrench with jaws

technical field

The utility model relates to a disassembly tool, in particular to a chain wrench with jaws.

Background technique

Chain spanners are widely used in the disassembly and installation of rotating components. The commonly used chain spanners rely on the protruding shaft of each link of the chain to hang on the rotating component, and use the friction between the chain and the component to drive the component to rotate, so as to realize the disassembly of the component. However, due to the defects of the traditional chain wrench itself, when the rotating member is large, since the chain cannot be fastened on the surface of the rotating member and is easy to slip, the traditional chain wrench cannot be used for disassembly.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and to provide a chain wrench with jaws, so as to realize the convenient and quick disassembly and assembly of large rotating components.

The utility model is achieved through the following technical solutions:

A chain wrench with jaws, comprising a casing, a screw rod, and two chains, the screw rod is located in the inner hole of the casing and is threadedly connected with the casing, and both ends extend out of the casing, and the two chains are One end is respectively fixed with a claws, the other ends of the two chains are connected together by a detachable pin, and the two chains are respectively detachably installed on both sides of the casing near the claws.

Bolts are respectively fixed on both sides of the outer wall of the sleeve, the chain is inserted into the bolts through the gaps of adjacent chain links, and the nuts are tightened to realize the detachable connection between the chain and the sleeve.

The screw rod is fixedly connected with a handle perpendicular to the screw rod at one end away from the two chains.

Nuts are fixed at both ends of the sleeve, and the screw rod is threadedly connected to the nuts at both ends of the sleeve.

Compared with the prior art, the utility model has the following advantages:

The utility model provides a chain wrench with jaws, which can be detachably connected to two chains through a sleeve, and the two chains can be enclosed in a ring structure, wrapped around the outer surface of a rotating member that needs to be disassembled, and rotated by rotating The screw rod makes the end of the screw rod press against the outer surface of the component, which increases the friction with the rotating component, which can effectively prevent slippage during the pulling process, and realize the convenience, speed and stability of large rotating components. disassembly. When the two chains are installed with one end of the jaws as the free end and the other end fixed on the sleeve, the bearing can be disassembled quickly and effortlessly, especially for the disassembly of the bearing with a small operating space. The chain wrench is fully achievable; the functions are diverse.

Description of drawings

FIG. 1 is a schematic diagram of the installation structure of the present invention when it is used for disassembling and assembling a rotating member.

FIG. 2 is a schematic structural diagram of the utility model when the bearing is disassembled.

Labels in the figure: 1 sleeve, 2 screw, 3 chain, 4 nut, 5 jaw, 6 removable pin, 7 bolt, 8 nut, 9 handle, 10 bearing, 11 installation shaft.

Detailed ways

The embodiments of the present utility model are described in detail below. The present embodiment is implemented on the premise of the technical solution of the present utility model, and provides detailed implementation methods and specific operation processes, but the protection scope of the present utility model is not limited to the following described embodiment.

1 and 2, the present embodiment discloses a chain wrench with jaws, including a casing 1, a screw rod 2, and two chains 3. The screw rod 2 is located in the inner hole of the casing 1, and the casing 1 Nuts 4 are fixedly welded at both ends, and the screw rod 2 is threadedly connected to the nuts 4 at both ends of the casing 1 . One end of the two chains 3 is respectively fixed with a jaw 5 , and the other ends of the two chains 3 are connected together by a detachable pin 6 . The two chains 3 are detachably installed on both sides of the casing 1 near the jaws 5. The specific connection method is as follows: bolts 7 are welded and fixed on both sides of the outer wall of the casing 1, and the chains 3 pass through the adjacent links. The space is inserted into the bolt 7, and the nut 8 is tightened to realize the detachable connection between the chain 3 and the sleeve 1.

Both ends of the screw rod 2 extend out of the casing 1 , and a handle 9 perpendicular to the screw rod 2 is fixedly connected to the one end of the screw rod 2 away from the two chains 3 to facilitate the operation of the operator.

Referring to FIG. 1 , when it is necessary to disassemble and assemble the rotating member, one end of the two chains 3 away from the jaw 5 is connected with a detachable pin 6 to form a whole chain 3 , and one end of the whole chain 3 is connected with the sleeve 1 . Then the whole chain 3 is wound on the outer side wall of the rotating member, and then the other end of the whole chain 3 is also connected with the bolt 7 on the other side of the sleeve 1, so that the whole chain 3 is set on the outer wall of the rotating member. Then, the handle 9 is rotated so that the end of the screw rod 2 is pressed against the side wall of the rotating member, that is, the fixed installation between the chain wrench and the member is completed. Then, by pulling the handle 9, the disassembly or installation of the rotating member can be realized.

Referring to FIG. 2 , when the bearing 10 needs to be removed, the detachable pin 6 is pulled out, and the two chains 3 are independent. Then, the ends of the two chains 3 away from the jaws 5 are installed on the sleeve 1, and the end with the jaws 5 is the free end. Place the handle 9 at the top, the two jaws 5 at the bottom, put the jaws 5 on the two chains 3 from top to bottom on both sides of the bearing 10 to be disassembled, and make the two jaws 5 hook the bearing 10. Then rotate the handle 9 to make the screw rod 26 press against the top of the mounting shaft 11 of the bearing 10, and continue to rotate the handle 9, the bearing 10 can be pulled upwards and disengaged from the mounting shaft 11 through the two jaws 5.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the present utility model. within the scope of protection.

Claims (4)

1. a chain wrench with jaws, it is characterized in that: comprise casing, screw rod, two chains, described screw rod is located in the inner hole of casing and is threadedly connected with casing and both ends extend out of casing. In addition, one end of the two chains is respectively fixed with jaws, the other ends of the two chains are connected together by a detachable pin, and the two chains are detachably installed on both sides of the casing at the positions close to the jaws. 2. A chain wrench with jaws as claimed in claim 1, wherein bolts are respectively fixed on both sides of the outer wall of the sleeve, and the chain is inserted into the bolts through the gaps of adjacent links, And tighten the nut to realize the detachable connection between the chain and the casing. 3 . The chain wrench with jaws according to claim 1 , wherein the screw rod is fixedly connected with a handle perpendicular to the screw rod at one end away from the two chains. 4 . 4 . The chain wrench with jaws according to claim 1 , wherein nuts are fixed at both ends of the sleeve, and the screw rod is threadedly connected to the nuts at both ends of the sleeve. 5 .

Images