CN216272855U

CN216272855U - Improved connection structure of hoisting chain and tail ring shaft bracket component of chain block

Info

Publication number: CN216272855U
Application number: CN202122791944.3U
Authority: CN
Inventors: 黎欣欣; 张天恒; 李广; 张哲兴; 张贺成
Original assignee: Baoding Guangzheng Hoisting Equipment Co ltd
Current assignee: Baoding Guangzheng Hoisting Equipment Co ltd
Priority date: 2021-11-06
Filing date: 2021-11-06
Publication date: 2022-04-12
Anticipated expiration: 2031-11-06

Abstract

The utility model discloses an improved connection structure of a hoisting chain and a tail ring shaft bracket component of a chain block, which comprises the hoisting chain, and the tail ring bracket and a tail ring shaft which are fixed together, wherein two necking shaft heads of the tail ring shaft are used for being installed on two side wall plates of the chain block; the tail ring shaft is arranged in the bent part and is connected with the bent part through a connecting pin; the tail ring of the hoisting chain is positioned between the two clamping parts, and the tail ring and the two clamping parts are fixedly connected together through a fastener. After the technical scheme is adopted, the tail ring frame only consists of the clamping parts and the bending parts, the structure is simple, the manufacturing cost is low, the two clamping parts form an opening chain inlet groove for accommodating the tail ring together, and the tail ring of the hoisting chain is clamped and fixed between the two clamping parts, so that the fixing reliability of the tail ring is high.

Description

Improved connection structure of hoisting chain and tail ring shaft bracket component of chain block

[ technical field ] A method for producing a semiconductor device

The utility model relates to a chain block, in particular to an improved connection structure of a hoisting chain and a tail ring shaft bracket component of the chain block.

[ background of the utility model ]

The tail ring of the hoisting chain of the existing chain block is fixed on a tail ring connecting component, the tail ring connecting component consists of a tail ring mounting block, a mandrel, a pin shaft and a split pin, one side of the tail ring mounting block is provided with a mandrel hole, the opposite side of the tail ring mounting block is provided with two symmetrical pin shaft sleeve parts, and the two pin shaft sleeve parts are mutually spaced to form an open slot. Wherein,

the mandrel passes through the mandrel hole for installation, the tail ring of the hoisting chain is placed in the open slot, and the pin shaft passes through the two pin shaft sleeve parts and the tail ring and then is fixed on one of the pin shaft sleeve parts through the open pin.

The tail ring connecting part has the following defects: the tail ring mounting block is a precision casting piece, the structure is complex, and the manufacturing cost is high; the tail ring is in loose fit with the open slot and is not clamped and fixed.

[ Utility model ] content

The utility model aims to provide an improved connection structure of a hoisting chain and a tail ring shaft bracket component of a chain block, which overcomes the defects in the prior art.

Therefore, the utility model provides the following technical scheme:

the utility model provides a chain block's hoisting chain improves structure with being connected of tail ring pedestal part, includes hoisting chain and fixed tail ring frame and tail ring axle together, on two necking down spindle noses of tail ring axle supply to install chain block's both sides wallboard, its improvement point lies in: the tail ring frame consists of two symmetrical and mutually parallel clamping parts and a bending part connected with the clamping parts; the tail ring shaft is arranged in the bent part and is connected with the bent part through a connecting pin; the tail ring of the hoisting chain is positioned between the two clamping parts, and the tail ring and the two clamping parts are fixedly connected together through a fastener.

The two clamping parts are respectively provided with elasticity, and the free distance between the two clamping parts is larger than the diameter of the tail ring.

The tail ring frame is formed by directly forming the two clamping parts and the bent part into an integral part by a sheet.

The utility model has the following advantages and positive effects:

the tail ring frame only comprises the clamping parts and the bending parts, the structure is simple, the manufacturing cost is low, the two clamping parts jointly form an opening chain inlet groove for accommodating the tail ring, and the tail ring of the hoisting chain is clamped and fixed between the two clamping parts, so that the fixing reliability of the tail ring is high.

Because two clamping parts have elasticity, the tail ring dismouting of jack-up chain is convenient to after changing the jack-up chain of different bearing specifications, the diameter of jack-up chain is its tail ring limited little, opens two elastic clamping parts and just can easily pack into the tail ring.

The tail ring frame is directly formed by two clamping parts and a bending part which are integrated by a sheet material, can realize the die pressing processing on a die, and has low manufacturing cost.

[ description of the drawings ]

FIG. 1 is a front view of the present invention;

fig. 2 is a schematic structural diagram of the present invention.

[ detailed description ] embodiments

Referring to fig. 1 and 2, an improved structure for connecting a lifting chain and a tail ring shaft bracket component of a chain block comprises a lifting chain 2, and a tail ring bracket 1 and a tail ring shaft 3 fixed together, wherein two necking shaft heads of the tail ring shaft 3 are used for being mounted on two side wall plates (a well-known component is not shown) of the chain block, and the improvement point is that: the tail ring frame 1 consists of two symmetrical and mutually parallel clamping parts 11 and a bending part 12 connected with the clamping parts; the tail ring shaft 3 is installed in the bending part 12 and the tail ring frame 1 is coupled with the tail ring shaft 3 through a coupling pin 4; the tail ring 21 of the hoisting chain 2 is positioned between the two clamping parts 11, and the tail ring 21 and the two clamping parts 11 are fixedly connected together by a fastener.

After the tail ring shaft 3 is inserted into the bent part, the left necking shaft head 3a and the right necking shaft head 3b respectively extend out of the corresponding side ends of the bent part 12; the coupling pin 4 is an elastic cylindrical pin.

The left neck shaft head 3a is installed in the shaft hole of one side wall plate, and the right neck shaft head 3b is installed in the shaft hole of the other side wall plate.

The fastener adopts a bolt 51 and a nut 52, the walls of the two clamping parts 11 are respectively provided with a through hole (not marked), the bolt 51 passes through the two through holes and the ring hole of the tail ring 21 and then is fastened by the nut 52, the top inner wall of the tail ring 21 is placed on the connecting bolt 51, and the bottom end edges of the two clamping parts 11 have a gap with a chain ring adjacent to the tail ring 21.

Both clamping portions 11 are resilient and the free distance 110 between the two clamping portions 11 is larger than the diameter of the tail ring. Thus, after the fastening member is fixedly connected, the tail ring 21 is clamped and fixed between the two clamping portions 11.

The tail ring frame 1 is formed by directly forming two clamping parts 11 and a bending part 12 into an integral part by a sheet material.

The sheet material is a steel plate with the thickness of 15mm, and a single part of the tail ring frame 1 integrally consisting of two clamping parts 11 and a bending part 12 is obtained after compression molding on a die.

An open shaft hole formed in the bent portion 12 and used for mounting the tail ring shaft 3 is communicated with an open zipper inlet groove formed by the two clamping portions 11.

Claims

1. The utility model provides a chain block's hoisting chain improves structure with being connected of tail ring pedestal part, includes hoisting chain and fixed tail ring frame and tail ring axle together, on two necking down spindle noses of tail ring axle supply to install chain block's both sides wallboard, its characterized in that: the tail ring frame consists of two symmetrical and mutually parallel clamping parts and a bending part connected with the clamping parts; the tail ring shaft is arranged in the bent part and is connected with the bent part through a connecting pin; the tail ring of the hoisting chain is positioned between the two clamping parts, and the tail ring and the two clamping parts are fixedly connected together through a fastener.

2. The improved connection structure of the hoisting chain and the tail ring shaft bracket component of the chain block according to claim 1, characterized in that: the two clamping parts are respectively provided with elasticity, and the free distance between the two clamping parts is larger than the diameter of the tail ring.

3. The improved connection structure of the hoisting chain and the tail ring shaft bracket component of the chain block according to claim 1 or 2, characterized in that: the tail ring frame is an integrated part formed by directly forming the two clamping parts and the bent part by a sheet.