Chain connecting device

Abstract

The utility model relates to the technical field of transmission chains, in particular to a chain connecting device. One end of the frame is provided with a vertical fixed pin shaft, the other end of the frame is connected with an adjusting lead screw in an inserted mode, the adjusting lead screw in the frame is connected with a vertical movable pin shaft, the movable pin shaft is limited in long-strip-shaped sliding grooves in the upper face and the lower face of the frame, and a rotary handle is welded to the tail of the adjusting lead screw. A special tool is provided, the vertical fixed pin shaft and the vertical movable pin shaft are clamped at the two ends of a chain, the distance between the vertical fixed pin shaft and the vertical movable pin shaft is adjusted by screwing the rotary handle, namely the size of a chain movable joint is adjusted, the chain movable joint can be rapidly installed by adjusting the size to the corresponding size, rapid installation of chain links is achieved, time and labor are saved, and the efficiency is improved. The method is rapid and accurate, and reduces labor intensity.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission chains, in particular to a chain connecting device. Background Art

[0002] In the prior art, during the ironmaking production process in steel mills, it is often necessary to replace the entire chain or part of the chain when repairing equipment. When connecting the new chain, maintenance personnel use manual labor to drag and connect it, and cannot install the chain links quickly, resulting in a waste of maintenance personnel's working time. Utility Model Content

[0003] The purpose of the utility model is to address the above-mentioned deficiencies and provide a chain connecting device which is conducive to the rapid installation of chain links and saves time and effort.

[0004] The technical solution of the utility model is: a chain connecting device, which is characterized in that it includes a frame, a vertical fixed pin at one end of the frame, an adjusting screw inserted and connected at the other end of the frame, a vertical movable pin connected to the adjusting screw in the frame, the movable pin confined in the long strip slide grooves on the upper and lower parts of the frame, and a rotary handle welded to the tail of the adjusting screw.

[0005] The above scheme also includes:

[0006] Two fixing nuts are welded on the inner and outer edges of the connection between the adjusting screw and the frame wall, and the adjusting screw passes through the two fixing nuts and the frame wall.

[0007] The adjusting screw is processed into a full-thread screw.

[0008] The advantages of the utility model are: providing a special tool, a vertical fixed pin shaft and a vertical movable pin shaft are clamped at both ends of the chain, and by rotating the handle, the distance between the vertical fixed pin shaft and the vertical movable pin shaft is adjusted, that is, adjusted to the size of the chain movable joint. When adjusted to the corresponding size, the chain movable joint can be quickly installed, thereby realizing rapid installation of chain links, saving time and effort, being fast and accurate, and reducing labor intensity.

[0009] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a simplified structural diagram of the utility model.

[0011] Figure 2 It is a simplified structural diagram of the utility model in use state. DETAILED DESCRIPTION

[0012] See also Figure 1 、 2The names of the parts are as follows: vertical fixed pin 1, fixed pin seat 2, long slide 3, vertical movable pin 4, adjusting screw 5, fixing nut 6, frame wall 7, rotary handle 8, frame 9, chain movable joint 10, chain 11.

[0013] See also Figure 1 、 2 The chain connection device includes a rectangular, hollow frame 9 with a vertical fixed pin 1 at one end of the frame 9. A fully threaded adjustment screw 5 is inserted and connected to the other end of the frame 9. A vertical movable pin 4 is connected to the adjustment screw 5 inside the frame 9. The movable pin 4 is confined within the long strip chute 3 on the upper and lower sides of the frame 9. The vertical movable pin 4 moves as the adjustment screw 5 rotates. A rotary handle 8 is welded to the tail of the adjustment screw 5. Two fixing nuts 6 are welded to the inner and outer edges of the connection between the adjustment screw 5 and the frame wall 7. The adjustment screw 5 passes through the two fixing nuts 6 and the frame wall 7.

[0014] The frame 9 is butt-welded with angle steel to form a square shape. Long, symmetrical slots are machined into the upper and lower center positions, and rounded slots are machined into the front end at upper and lower symmetrical positions. A fixed pin seat 2 is installed to receive the vertical fixed pin 1. A vertical movable pin 4 is machined and drilled with an internal thread in the center. The vertical movable pin 4 is installed in the long, symmetrical slot 3. A hole is drilled in the center of the iron plate at the rear end of the frame 9 to mount the adjusting screw 5. This is welded to the rear end of the square fixed slot welded to the angle steel. Two fixing nuts 6 are welded to the inside and outside of the frame wall 7 (iron plate). A rotary handle 8 is welded to the end of the adjusting screw 5 for tightening.

[0015] When in use, the vertical fixed pin 1 and the vertical movable pin 4 are clamped at both ends of the chain. By rotating the handle 8, the distance between the vertical fixed pin 1 and the vertical movable pin 4 is adjusted, that is, adjusted to the size of the chain movable joint. Once adjusted to the corresponding size, the chain movable joint 10 can be quickly installed.

[0016] The above description is only a specific implementation of the present invention, and various examples do not limit the essential content of the present invention.

Claims

1. Chain connecting device, characterized in that The invention comprises a frame (9), one end of which is provided with a vertical fixed pin shaft (1), the other end of which is inserted with an adjusting screw (5), a vertical movable pin shaft (4) is connected to the adjusting screw shaft (5) in the frame (9), the movable pin shaft (4) is confined in a long strip-shaped slide groove (3) at the upper and lower sides of the frame (9), and a rotary handle (8) is welded to the tail of the adjusting screw shaft (5).

2. The chain connecting device according to claim 1, characterized in that Two fixing nuts (6) are welded on the inner and outer edges of the connection between the adjusting screw (5) and the frame wall (7), and the adjusting screw (5) passes through the two fixing nuts (6) and the frame wall (7).

3. The chain connecting device according to claim 1 or 2, characterized in that The adjusting screw (5) is processed into a full-thread screw.

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