CN211761191U - Tool for disassembling backstop catcher - Google Patents

Abstract

The utility model relates to a screw pump disassembly tool, in particular to a tool for disassembling a backstop handle. It includes an ejector rod, a connecting plate and a nut; the ejector rod body is provided with an external thread, one end is a cone, and the other end is provided with a handle; the connecting plate is disc-shaped, and the center is provided with a circular hole adapted to the ejector rod , the end is provided with a bolt hole adapted to the backstop connector; the end face of the nut is fixed on the connecting plate, the center of the nut is provided with an internal thread that matches the external thread of the ejector rod, and the nut and the ejector rod are connected by thread. The structure is simple, the operation is convenient, the force is uniform, and the backstop is easy to disassemble to take over, saving time and effort, and improving work efficiency.

Description

A tool for removing backstop handle

technical field

The utility model relates to a screw pump disassembly tool, in particular to a tool for disassembling a backstop handle.

Background technique

The screw pump backstop takes over, the inner side and the motor shaft are connected with a flat key interference fit, the installation depth is more than 60mm, the outer side and the backstop are fixed with bolts, and the takeover needs to be removed when overhauling the motor or replacing the belt. Mechanical grasping is required when disassembling. Because the diameter difference of the receiver itself is very small, the boss is very narrow, only 10mm. It is time-consuming and labor-intensive, labor-intensive, and takes a long time to work. It also needs the cooperation of a crane to disassemble it.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a tool for disassembling the backstop handle, which has the advantages of simple structure, convenient operation, uniform force, convenient disassembly of the backstop handle, saving time and effort, and improving work efficiency.

In order to achieve the above object, the utility model adopts the following technical solutions to realize:

A tool for dismantling the handle of a backstop comprises a mandrel, a connecting plate and a nut; the mandrel body is provided with an external thread, one end is a cone, and the other end is provided with a handle; the connecting plate is disc-shaped, and the center There is a round hole adapted to the ejector rod, and the end is provided with a bolt hole adapted to the handle of the backstop; the end face of the nut is fixed on the connecting plate, and the center of the nut is provided with an inner thread adapted to the outer thread of the ejector rod. Thread, the nut and the ejector rod are connected by thread.

The handle is a regular hexagonal prism.

The apex angle of the cone is 60°.

Compared with the prior art, the beneficial effects of the present utility model are:

1) The backstop handle is separated from the motor shaft through the cooperation of the ejector rod and the bolt, which can completely protect the overall structure of the backstop handle, reduce the consumption of spare parts and improve economic benefits;

2) The structure is simple, the operation is convenient, and the labor intensity of maintenance personnel is reduced;

3) It takes less time to disassemble, which greatly improves the maintenance efficiency;

4) The handle is a regular hexagonal prism with strong torque and easy operation.

Description of drawings

1 is a schematic diagram of the three-dimensional structure of the present utility model;

2 is a schematic front view of the structure of the present utility model;

3 is a schematic top view of the structure of the present utility model;

4 is a schematic front view of the ejector rod structure of the present invention;

5 is a schematic top view of the structure of the connecting plate of the present invention;

FIG. 6 is a schematic front sectional view of the structure of the present utility model in a working state.

In the picture: 1- Ejector rod 2- Connecting plate 3- Nut 4- Motor shaft 5- Backstop handle 11- External thread 12- Cone 13- Handle 21- Round hole 22- Bolt hole

Detailed ways

The specific embodiments of the present utility model will be further described below in conjunction with the accompanying drawings:

As shown in Figure 1-3, a tool for dismantling the handle of the backstop includes an ejector rod 1, a connecting plate 2 and a nut 3.

As shown in FIG. 4 , the rod body of the ejector rod 1 is provided with an external thread 11 , one end of the ejector rod 1 is a cone 12 , and the other end of the ejector rod 1 is provided with a handle 13 . The apex angle of the cone 12 is 60°, and the handle 13 is a regular hexagonal prism, which has strong torsion force and is easy to operate.

As shown in FIG. 5 , the connecting plate 2 is disc-shaped, with a circular hole 21 in the center that is adapted to the ejector rod 1 , and eight bolt holes 22 adapted to the backstop handle are evenly distributed around the circumference of the end.

As shown in Figure 1-3, the end face of the nut 3 is fixed on the end face of the connecting plate 2, and the center of the nut 3 is provided with an internal thread that matches the external thread 11 of the ejector rod 1, and the nut 3 and the ejector rod 1 are connected by threads .

As shown in Figure 6, the working process of the present utility model is as follows:

1. First fix the connecting plate 2 on the backstop handle 5 with 8 M8 bolts.

2. Hold the handle 13 and turn the ejector rod 1 inward. When the cone 12 of the ejector rod 1 touches the central positioning hole of the motor shaft 4, turn the ejector rod 1 again. At this time, the backstop handle 5 will move outward, and then the The backstop handle 5 is removed from the motor shaft 4 .

The utility model separates the backstop handle 5 from the motor shaft 4 through the cooperation of the ejector rod 1 and the bolt, so that the overall structure of the backstop handle 5 can be completely protected, the consumption of spare parts is reduced, and the economic benefit is improved; the structure is simple and the operation is convenient. , reduces the labor intensity of the maintenance personnel; takes less time to disassemble, and greatly improves the maintenance efficiency; the handle 13 is a regular hexagonal prism, which has strong torque and is easy to operate.

The above implementation is carried out on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the above-mentioned embodiments. The methods used in the above implementation are conventional methods unless otherwise specified.

Claims (3)

1. The utility model provides a dismantle instrument that backstop catcher, its characterized in that: comprises a mandril, a connecting disc and a nut; the ejector rod body is provided with external threads, one end of the ejector rod body is conical, and the other end of the ejector rod body is provided with a handle; the connecting disc is disc-shaped, the center of the connecting disc is provided with a round hole matched with the ejector rod, and the end part of the connecting disc is provided with a bolt hole matched with the backstop catcher; the end face of the nut is fixedly connected to the connecting disc, an internal thread matched with the external thread of the ejector rod body is arranged at the center of the nut, and the nut is connected with the ejector rod through threads.

2. A tool for dismounting a backstop catcher as recited in claim 1 wherein: the handle is a regular hexagonal prism.

3. A tool for dismounting a backstop catcher as recited in claim 1 wherein: the apex angle of the cone is 60 °.

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