CN211278084U

CN211278084U - Portable large-scale lifting machine plate link chain maintenance frock

Info

Publication number: CN211278084U
Application number: CN201921771623.3U
Authority: CN
Inventors: 果玉海
Original assignee: Tianjin Jidong Cement Co ltd
Current assignee: Tianjin Jidong Cement Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-08-18
Anticipated expiration: 2029-10-21

Abstract

The utility model relates to a portable large-scale lifting machine plate link chain maintenance frock, including last hook, lower hook and tensioning lead screw, it is type L type with lower hook to go up the hook, the minor face of going up hook and lower hook all is equipped with rolls cover complex hook groove with the plate link chain, the long limit of going up hook and lower hook all is equipped with the screw thread through-hole, the both ends of tensioning lead screw are equipped with the screw thread respectively, and the screw specification at tensioning lead screw both ends is the same, revolve to opposite, the both ends of tensioning lead screw respectively with last hook and lower hook threaded connection. The utility model discloses small and exquisite portable saves space, simple structure, and the equipment is convenient, and the operation is high-efficient, and maintenance efficiency is high, when using the inspection socket directly with the frock install on bad chain with the tensioning lead screw tensioning can, inside the human body got into the hoisting machine casing, reduced safe risk.

Description

Portable large-scale lifting machine plate link chain maintenance frock

Technical Field

The utility model belongs to the technical field of the lifting machine maintenance, in particular to portable large-scale lifting machine plate link chain maintenance frock.

Background

At present, material lifting equipment in the production process of the existing cement industry is mainly a lifter. The hoister with the length of less than 50 meters is basically a plate chain hoister, and a chain plate is inevitably worn or broken along with the prolonging of time in the use process of the hoister, so that the hoister needs to be periodically checked and replaced. In the past, tools such as a sling chain and a steel wire rope buckle are used for fixing two ends of a damaged chain plate when the chain plate of the elevator is replaced, the sling chain is used for dragging the damaged chain plate to reach the pitch size of the chain plate, and then the chain plate is replaced with a new chain plate, so that the operation is time-consuming and labor-consuming. In the process of hanging the hanging chain and the rope buckle, the body of a person is required to enter the shell of the lifting machine, and the potential safety hazard is large. And the chain can be distorted and deformed after being tensioned by the hanging chain, the centers of the upper and lower chain plates are not aligned, the problems of the installation of a new chain plate and the like are influenced, and the chain can be installed in place by adjusting the angle for many times. Therefore, it is necessary to develop a tool capable of rapidly replacing the damaged link plate.

Disclosure of Invention

The utility model discloses a solve the technical problem that exists among the well-known technique and provide a portable large-scale lifting machine plate link chain maintenance frock, this frock can improve lifting machine maintenance efficiency, operation convenient to use is swift, small and exquisite portable, save space.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be:

the utility model provides a portable large-scale lifting machine plate chain maintenance frock, includes the knuckle, lower knuckle and tensioning lead screw, it is type L type with lower knuckle to go up the knuckle, the minor face of going up the knuckle and lower knuckle all is equipped with rolls cover complex hook groove with the plate chain, the long limit of going up the knuckle and lower knuckle all is equipped with the screw thread through-hole, the both ends of tensioning lead screw are equipped with the screw thread respectively, and the screw thread specification at tensioning lead screw both ends is the same, revolve to opposite, the both ends of tensioning lead screw respectively with last knuckle and lower knuckle threaded connection.

In the above technical solution, preferably, the threads at both ends of the tensioning screw rod are T-shaped threads.

In the above technical solution, preferably, a torsion buckle is arranged in the middle of the tensioning screw rod.

In the above technical solution, it is further preferable that the torsion buckle is hexagonal.

In the above technical solution, preferably, the short sides of the upper and lower fingers are both structures gradually contracting from the root to the tip of the finger.

The utility model has the advantages and positive effects that:

the tool of the utility model is adopted in the maintenance process of the hoister, so that 1-person operation of replacing the plate link chain of the hoister can be realized, and the number of maintenance personnel is reduced; the utility model has the advantages that the stress direction is parallel to the chain direction, the chain is not twisted and deformed, and the problem of difficult installation of a new plate chain is solved, thereby improving the working efficiency; the utility model discloses small and exquisite portable saves space, simple structure, and the equipment is convenient, and the operation is high-efficient, and maintenance efficiency is high, when using the inspection socket directly with the frock install on bad chain with the tensioning lead screw tensioning can, inside the human body got into the hoisting machine casing, reduced safe risk.

Drawings

Fig. 1 is a schematic structural diagram of a maintenance tool according to a preferred embodiment of the present invention;

fig. 2 is a schematic structural view of an upper claw provided in the preferred embodiment of the present invention;

fig. 3 is a schematic structural view of a lower claw according to a preferred embodiment of the present invention;

FIG. 4 is a left side view of FIG. 4;

fig. 5 is a schematic structural diagram of a tensioning screw according to a preferred embodiment of the present invention;

FIG. 6 is a side view of FIG. 5;

fig. 7 is a schematic structural diagram of a service state of the maintenance tool according to the preferred embodiment of the present invention.

In the figure: 1. an upper claw; 11. a first hook groove; 12. a first threaded through hole; 2. a lower claw; 21. a hook groove II; 22. a second threaded through hole; 3. tensioning the lead screw; 31. and (6) a torsion buckle.

Detailed Description

For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified and will be described in detail with reference to the accompanying drawings:

in the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1 to 6, an embodiment of the present invention provides a portable large elevator plate chain maintenance tool, including an upper hook 1, a lower hook 2 and a tensioning screw 3, where the upper hook 1 and the lower hook 2 are L-like, a short edge of the upper hook 1 is provided with a first hook groove 11 cooperating with a plate chain rolling sleeve, a short edge of the lower hook 2 is provided with a second hook groove 21 cooperating with the plate chain rolling sleeve, the first hook groove 11 and the second hook groove 21 have the same size, a long edge of the upper hook 1 is provided with a first threaded through hole 12, a long edge of the lower hook 2 is provided with a second threaded through hole 22, the first threaded through hole 21 and the second threaded through hole 22 have opposite screw directions, two ends of the tensioning screw 3 are respectively provided with threads, the two thread specifications of the tensioning screw 3 are the same and opposite, and two ends of the tensioning screw 3 are respectively in threaded connection with the upper hook 1 and the lower hook 2.

As a preferred embodiment, the thread of the tensioning screw rod 3 is a T-shaped thread, and the T-shaped thread can ensure that the lifting distance is large and the thread is not broken.

As a preferred embodiment, the middle of the tensioning screw 3 is provided with a torsion buckle 31 for transmitting torque.

As a further preferred embodiment, the torsion buckle 31 is hexagonal, which facilitates the application of torsion at multiple angles.

As a preferred embodiment, in order to ensure the problem of large stress on the root parts of the upper and lower claws, the short sides of the upper claw 1 and the lower claw 2 are both structures which gradually contract from the root part to the tip part of the claw, so that the root part is thicker.

In this embodiment, the frock combination is divided into two types according to used hoist plate chain pitch size: one type is a combination of a tensioning screw rod 3 with the diameter of phi 32 mm, the length of 300 mm and the width of a hook claw of 35 mm; the chain hoist is suitable for being used by a hoist with a plate chain pitch of 125-200 mm. The other type is a combination of a tensioning screw rod 3 with the diameter of phi 50 mm, the length of 500 mm and the width of a hook claw of 50 mm, and is suitable for a lifter with a plate chain pitch between 200 mm and 300 mm. The purpose of designing two sets of frock is that furthest reduces frock combination weight, more be convenient for operate. The middle part of the tensioning screw rod 3 is a torque transmission part and is designed to be hexagonal so as to apply torque force at multiple angles; the upper part is designed into left-handed T3(30 x 300, 50 x 500) type threads, and the lower part is designed into right-handed T3 type threads, wherein the T type threads have the advantages of large lifting distance and no random buckling.

The first model is exemplified as follows: the thread of the upper claw 1 for processing the thread through hole is a left-handed T3 type thread (phi 30), the size of the thread is matched with the tensioning screw rod, the thread of the lower claw 2 for processing the thread through hole is a right-handed T3 type thread (phi 30), and the size of the thread is matched with the tensioning screw rod, so that the left-handed (right-handed) tensioning screw rod and the upper and lower claws on two sides can tighten (loosen) the chain pitch of the adjusting plate to realize the replacement of a new chain plate.

Referring to fig. 7, in use, the upper claw 1 and the lower claw 2 are assembled with the tensioning screw 3, the two claws are arranged in a vertically symmetrical manner, and the hook tips of the two claws face to opposite directions. Go up the knuckle 1 in the upper portion of damaged chain festival, lower knuckle 2 is in the lower part of damaged chain festival position, fastens tensioning lead screw 3 to suitable position with the spanner, can accomplish chain tensioning work, is convenient for change damaged link joint.

To sum up, the utility model provides the high maintenance speed that the flat link chain was changed to the lifting machine has reduced the potential safety hazard, has reduced intensity of labour.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and all the changes and modifications equivalent to any simple modification made by the technical entity of the present invention to the above embodiments are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a portable large-scale lifting machine plate link maintenance frock which characterized in that: including last hook, lower hook and tensioning lead screw, go up the hook and be type L with lower hook, the minor face of going up hook and lower hook all is equipped with the hook groove with plate chain rolling sleeve complex, the long limit of going up hook and lower hook all is equipped with the screw thread through-hole, the both ends of tensioning lead screw are equipped with the screw thread respectively, and the screw thread specification at tensioning lead screw both ends is the same, revolve to opposite, the both ends of tensioning lead screw respectively with last hook and lower hook threaded connection.

2. The portable large-scale hoisting machine plate chain maintenance tool of claim 1, characterized in that: and the threads at the two ends of the tensioning screw rod are T-shaped threads.

3. The portable large-scale hoisting machine plate chain maintenance tool of claim 1, characterized in that: and a torsion buckle is arranged in the middle of the tensioning screw rod.

4. The portable large-scale hoisting machine plate chain maintenance tool of claim 3, characterized in that: the torsion buckle is hexagonal.

5. The portable large-scale hoisting machine plate chain maintenance tool of claim 1, characterized in that: the short edges of the upper claw and the lower claw are both structures gradually contracted from the root part to the tip part of the claw.