CN206287085U - Dismantle the instrument of bearing - Google Patents

Abstract

The utility model provides a tool for disassembling a bearing, which comprises a stator (1), a rotor (2) matched with the stator (1), a fastening part (3), and the stator (1) and the fastening part (3 ) are connected through a movable connection part (4), one end of the rotor (2) can be in contact with the end face of the shaft where the bearing is located, and the fastening part (3) can fix the inner ring of the bearing. The utility model solves the problems that traditional tools take up a lot of space and takes time and effort to disassemble the bearing. The force is uniform during the disassembly process of the inner ring of the bearing, which can well protect the mechanical equipment and avoid unnecessary losses. The utility model has the advantages of simple structure, convenient installation, low manufacturing cost and high use efficiency, and can conveniently and quickly complete the disassembly work of the inner ring of the bearing, and is especially suitable for dismantling the inner ring of the bearing at the end side of a large motor or a high-power dynamometer.

Description

Tools for removing bearings

technical field

The utility model belongs to a mechanical dismantling tool, in particular to a dismantling tool for the inner ring of the end side support bearing of a large-scale motor or a high-power dynamometer.

Background technique

Bearing is an important part of contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy.

At present, large motors and high-power dynamometers generally use bearings as end-side supports. After long-term use, the inner wear of the bearings will gradually increase, which will eventually affect the normal operation of the machine. In this case, it is generally necessary to repair and replace the bearings.

There are two problems in the replacement process: 1. The installation method of interference fit is generally used between the bearing and the shaft. The traditional disassembly will often damage the main shaft of the machine, causing unnecessary losses and increasing the difficulty and cost of maintenance; 2. For The support bearings of large motors, high-power dynamometers and other equipment are generally far away from the end face of the shaft, and there is often no large space inside the bearings. Traditional pulling tools are inconvenient to use, and it is difficult to successfully disassemble the bearings.

Utility model content

The utility model provides a tool for disassembling a bearing.

The tool for dismounting the bearing of the utility model includes a stator 1, a rotor 2 matched with the stator 1, and a fastening part 3. The stator 1 and the fastening part 3 are connected through a movable connection part 4, and one end of the rotor 2 can be connected to the bearing The end face of the shaft where it is located is in contact, and the fastening component 3 can fix the inner ring of the bearing.

The stator 1 preferably cooperates with the rotor 2 through threads.

The rotor 2 is preferably a screw; the end of the rotor 2 in contact with the shaft end surface where the bearing is located is preferably tapered to facilitate positioning and close contact with the shaft end where the bearing is located.

The fastening part 3 preferably includes two semicircular assemblies, and the two semicircular assemblies are connected by screws. In use, the two semicircular components can be tightly held on the inner ring of the bearing by tightening the two screw screws.

The movable connection part 4 preferably includes two or more movable connection subparts 5 . The connection points of the two or more movable connection sub-components 5 on the stator 1 and the fastening component 3 are distributed evenly in the axial direction.

The movable connection part 5 is preferably a hinge part 6 .

The hinged part 6 preferably includes a connecting piece 7 and a connecting rod 8, the upper and lower ends of the connecting piece 7 are respectively hinged together with the stator 1 and the connecting rod 8 through screw nuts, and the other end of the connecting rod 8 is fastened to Part 3 is connected.

The utility model solves the problems that traditional tools take up a lot of space and takes time and effort to disassemble the bearing. The force is uniform during the disassembly process of the inner ring of the bearing, which can well protect the mechanical equipment and avoid unnecessary losses. The utility model has the advantages of simple structure, convenient installation, low manufacturing cost and high use efficiency, and can conveniently and quickly complete the disassembly work of the inner ring of the bearing, and is especially suitable for dismantling the inner ring of the bearing at the end side of a large motor or a high-power dynamometer.

Description of drawings:

Fig. 1 is a structural diagram of a bearing removal tool of the present invention.

Fig. 2 is a structural diagram of a preferred bearing removal tool of the present utility model.

Fig. 3 is a structural view of the preferred bearing dismounting tool of the present utility model when in use.

detailed description

Below in conjunction with accompanying drawing, the utility model is described further.

Example 1

As shown in Figure 1, the tool for removing the bearing includes a stator 1, a rotor 2 matched with the stator 1, and a fastening part 3. The stator 1 and the fastening part 3 are connected through a movable connection part 4. One end of the rotor 2 It can be in contact with the end face of the shaft where the bearing is located, and the fastening component 3 can fix the inner ring of the bearing. The stator 1 cooperates with the rotor 2 through threads, the rotor 2 is a screw, and the movable connection part 4 includes three movable connection subparts 5 .

When in use, one end of the rotor 2 in the tool of the present invention is pressed against the end face of the shaft where the bearing is located, the fastening part 3 is fixed on the inner ring of the bearing, and the three movable connection sub-parts 5 are adjusted according to the distance between the bearing and the end face of the shaft. Its length is consistent to ensure that the stress on the point of force is even. Rotating the rotor 2, the stator 1 will move in the opposite direction of the bearing, thereby driving the movable connecting part 4 to pull the inner ring of the bearing to move outward. During the movement, the length of the movable connecting part 4 can be adjusted as required until the inner ring of the bearing falls off.

Example 2

As shown in Figure 2, the tool for removing the bearing includes a stator 1, a rotor 2 matched with the stator 1, and a fastening part 3. The stator 1 and the fastening part 3 are connected through a movable connection part 4, and one end of the rotor 2 It can be in contact with the end face of the shaft where the bearing is located, and the fastening component 3 can fix the inner ring of the bearing. The stator 1 is matched with the rotor 2 through threads, and the rotor 2 is a screw rod. The fastening part 3 includes two semicircle assemblies connected by screws. The movable connection part 4 includes three movable connection parts. Part 5, the movable connection sub-part 5 is a hinged part 6, and the hinged part 6 includes a connecting piece 7 and a connecting rod 8, and the upper and lower ends of the connecting piece 7 are respectively hinged with the stator 1 and the connecting rod 8 through screw nuts Together, the other end of the connecting rod 8 is connected with the fastening part 3 .

When in use, see Figure 3, where the shaft is marked as 9, and the inner ring of the bearing is marked as 10. Put one end of the rotor 2 in the utility model against the end face of the shaft 9; the two semicircular components of the fastening part 3 hold the inner ring 10 of the bearing tightly; adjust the three connecting rods 8 according to the distance between the bearing and the end face of the shaft so that their lengths are consistent , to ensure that the force is evenly applied to the force point; when the rotor 2 is rotated, the stator 1 will move toward the outside of the bearing along the axial direction of the bearing, as shown by the arrow in the figure, thereby driving the connecting rod 8 to pull the inner ring of the bearing to move outward, during the moving process Can adjust the length of movable connecting rod 8 as required, until the bearing inner ring falls off.

During the use of the utility model, the force on the inner ring of the bearing is uniform, the shaft will not be damaged, and the operation is safe and reliable.

The utility model discloses a preferred embodiment, but it is not limited thereto. Therefore, different extensions and changes made by those skilled in the art according to the above-mentioned embodiments and the spirit of the utility model should be within the scope of protection of the utility model Inside.

Claims (10)

1. a kind of instrument for dismantling bearing, including rotor (2), the secure component (3) that stator (1) is engaged with stator (1), it is fixed Sub (1) is connected with secure component (3) by articulating members (4), and one end of the rotor (2) can be with axle where bearing End contact, the secure component (3) being capable of fixing bearing inner ring.

2. according to the instrument described in claim 1, it is characterised in that the stator (1) is engaged by screw thread with rotor (2).

3. according to the instrument described in claim 2, it is characterised in that the rotor (2) is screw rod.

4. according to the instrument described in claim 1, it is characterised in that the rotor (2) is in contact with axial end where bearing One end is set to taper.

5. according to the instrument described in claim 1, it is characterised in that the secure component (3) includes two semicircle components, two It is connected by screw rod screw between semicircle component.

6. according to the instrument that one of claim 1-5 is described, it is characterised in that the articulating members (4) including two or More than two flexible connections sub-unit (5).

7. according to the instrument described in claim 6, it is characterised in that described two or more than two flexible connection sub-units (5) connection site on stator (1) and secure component (3) is uniformly distributed in axial direction.

8. according to the instrument described in claim 7, it is characterised in that the flexible connection sub-unit (5) is hinge member (6).

9. according to the instrument described in claim 8, it is characterised in that the hinge member (6) includes connection sheet (7) and connecting rod (8)。

10. according to the instrument described in claim 9, it is characterised in that the upper and lower ends of the connection sheet (7) pass through screw rod respectively Nut is hinged with stator (1) and connecting rod (8), and the other end of the connecting rod (8) is connected with secure component (3).