CN210307625U - Small-size bearing dismounting device - Google Patents

Abstract

The utility model discloses a small bearing dismounting device, which comprises a frame body, a screw rod which is connected with the frame body by screw thread and can move along the axial direction of a bearing, and a bracket, wherein the bracket comprises a left bracket and a right bracket which are fixedly connected, the distance between the left bracket and the right bracket is gradually reduced from high to low, and a shaft can be clamped between the left bracket and the right bracket; the left bracket and the right bracket are both provided with at least one through hole along the height direction, and the left bracket and the right bracket are connected with the frame body by the screws passing through the through holes. The utility model discloses easily dismantle the bearing and be suitable for and dismantle different diameter bearings. The utility model is suitable for a use in the dismantlement of different specification bearings, can dismantle the bearing of bearing internal diameter within 12 mm.

Description

Small-size bearing dismounting device

Technical Field

The utility model belongs to the technical field of mechanical overhaul, a bearing is dismantled, specifically speaking is a miniature bearing dismounting device.

Background

In the maintenance of electromechanical engineering equipment, the pump body bearing is often required to be dismantled for maintenance or replaced. Because equipment runs for a long time, the bearing is closely matched with the shaft, manual disassembly is difficult, and the bearing and the shaft are easily damaged by manual disassembly, so that the bearing cannot be reused. The existing bearing disassembling tool has the defects of complex structure, high manufacturing cost, easy damage and difficult repair of parts, small contact surface between a disassembling device and a bearing, easy damage of the bearing in the process of strong pulling and the like. In addition, the existing bearing disassembling tool can only disassemble the bearing with a single diameter, and cannot be suitable for disassembling the bearings with different diameters.

SUMMERY OF THE UTILITY MODEL

For solving the above not enough that exists among the prior art, the utility model aims at providing a small-size bearing dismounting device to reach easily dismantling the bearing and be suitable for the purpose of dismantling different diameter bearings.

In order to achieve the above object, the utility model adopts the following technical scheme: a small bearing dismounting device comprises a frame body, a screw rod and a bracket, wherein the screw rod is in threaded connection with the frame body and can axially move along a bearing; the left bracket and the right bracket are both provided with at least one through hole along the height direction, and the left bracket and the right bracket are connected with the frame body by the screws passing through the through holes.

As the utility model discloses a inject, fixed connection is favorable to rotating the handle of screw rod on the screw rod.

As another limitation of the utility model, the frame body comprises a left bracket arranged on the left side of the shaft and a right bracket arranged on the right side of the shaft, the left bracket and the right bracket are fixedly connected through a nut, and the nut is in threaded connection with a screw rod; the left support is connected with the left bracket through screws, and the right support is connected with the right bracket through screws.

As the utility model discloses a further inject, the through-hole one-to-one setting on left bracket and the right bracket, and the through-hole that corresponds the setting arranges same level in.

Since the technical scheme is adopted, compared with the prior art, the utility model, the beneficial effect who gains is:

(1) the utility model has the advantages that the shaft matched with the bearing is clamped on the bracket through the bracket which has the supporting function for the bearing, the shaft has reaction force for the screw by utilizing the pressure applied to the shaft by the screw, and the bracket pulls the bearing outwards under the force transfer function of the bracket body, thereby taking the bearing off from the shaft; in the whole dismounting process, the larger contact surface is arranged between the bracket and the bearing, so that the bearing and the shaft are not easily damaged in the process of drawing the bearing outwards;

(2) the utility model gradually reduces the distance between the left bracket and the right bracket along the height direction, so that the left bracket and the right bracket can be always clamped on the shaft according to the inner diameters of different bearings, thereby being suitable for the dismounting and mounting of bearings with different types and having wide applicability;

(3) the utility model arranges a plurality of through holes along the height direction on the bracket, and the bracket body can be arranged at different height positions of the bracket according to the size of the bearing, so that the axes of the screw rod, the shaft and the bearing are collinear, and the force is easy to be applied to the shaft in the dismounting process;

(4) the utility model is provided with the handle, so that the screw rod can be easily rotated by the hand of the operator;

(5) the utility model has the advantages that the left bracket and the right bracket are arranged, on one hand, the effect of stabilizing the supporting screw rod can be achieved, on the other hand, the uniform conduction force is facilitated, and the use is convenient;

to sum up, the utility model discloses use convenient, easy operation, safety, high-efficient, extensive applicability, practicality are strong.

The utility model is suitable for a use in the dismantlement of different specification bearings, can dismantle the bearing of bearing internal diameter within 12 mm.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a front view of the structure relationship of the left bracket 4 or the right bracket 9 according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a bracket according to an embodiment of the present invention.

In the figure: 1. a handle; 2. a screw; 3. a nut; 4. a left bracket; 5. a bearing; 6. a bracket; 7. a screw; 8. a through hole; 9. a right bracket; 10. a left bracket; 11. a right bracket; 12. a shaft.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the preferred embodiments described herein are for purposes of illustration and understanding only and are not intended to limit the invention.

Embodiment a small-size bearing dismounting device

In this embodiment, the bearing 5 is pulled out by applying pressure to the shaft 12 by rotating the screw 2 while the bracket 6 supports the bearing 5, and reacting the pressure applied to the shaft 12 by the bracket body to the bearing 5 by the bracket 6. As shown in fig. 1 to 3, the present embodiment includes a frame body with a screw 2 and a bracket 6.

A bracket 6

The bracket 6 is disposed at the rear side of the bearing 5 to support the bearing 5. Referring to fig. 3, the bracket 6 includes a left bracket 10 and a right bracket 11 which are integrally formed, and the left bracket 10 and the right bracket 11 are both plate-shaped to increase a contact area with the bearing 5. The distance between the left bracket 10 and the right bracket 11 gradually decreases from high to low, that is, the distance between the extreme high positions of the left bracket 10 and the right bracket 11 is greater than the distance between the extreme low positions of the left bracket 10 and the right bracket 11, in other words, a V-shaped slot is formed between the left bracket 10 and the right bracket 11, so that the shafts 12 with different diameters can be clamped between the left bracket 10 and the right bracket 11.

At least one through hole 8 capable of being connected with the frame body screw 7 is formed in the left bracket 10 in the height direction, at least one through hole 8 capable of being connected with the frame body screw 7 is formed in the right bracket 11 in the height direction, the through holes 8 in the left bracket 10 and the through holes 8 in the right bracket 11 are arranged in a one-to-one correspondence mode, and the two through holes 8 which are correspondingly arranged are arranged at the same horizontal height.

Second, the frame body

The frame body is used for transmitting force. The support body includes left socle 4, right branch frame 9 and fixes the nut 3 between left socle 4 and right branch frame 9. The left bracket 4 is arranged at the left side of the shaft 12, and the left bracket 4 is connected with the left bracket 10 through a screw 7. The right bracket 9 is arranged at the right side of the shaft 12, and the right bracket 9 is connected with the right bracket 11 through a screw 7.

A screw 2 movable in the axial direction of the shaft 12 (the axis of the bearing 5) is screwed to the nut 3. Referring to fig. 1, a handle 1 is vertically fixed to one end of a screw 2, so that the screw 2 is rotated by holding the handle 1; the other end of the screw 2 can be moved into contact with the circular flat surface of the shaft 12 to apply a force to the shaft 12.

Third, the working process

When the bearing 5 is disassembled by using the embodiment, the method comprises the following steps:

s1, a bracket 6 is arranged at the rear side of a bearing 5, so that a shaft 12 is clamped on a left bracket 10 and a right bracket 11.

S2, selecting through holes 8 with corresponding heights on the left bracket 10 and the right bracket 11, installing the left bracket 10 on the left support 4 through screws 7, and installing the right bracket 11 on the right support 9 through screws 7, so as to ensure that the axes of the screw rod 2 and the shaft 12 on the frame body are collinear.

S3, rotating the handle 1 to drive the screw rod 2 to prop against the circular plane of the shaft 12, and applying pressure to the shaft 12 by the screw rod 2; the frame body transmits the reaction force of the shaft 12 to the screw 2 to the bracket, and the bearing 5 is pulled away from the shaft 12 by the bracket, so that the bearing 5 is disassembled.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or some technical features can be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a small-size bearing dismounting device, includes support body and threaded connection can follow bearing axial displacement's screw rod on the support body, its characterized in that: the bracket comprises a left bracket and a right bracket which are fixedly connected, the distance between the left bracket and the right bracket is gradually reduced from high to low, and the shaft can be clamped between the left bracket and the right bracket; the left bracket and the right bracket are both provided with at least one through hole along the height direction, and the left bracket and the right bracket are connected with the frame body by the screws passing through the through holes.

2. The miniature bearing removal apparatus of claim 1, wherein: the handle is fixedly connected with the screw rod and is beneficial to rotating the screw rod.

3. A miniature bearing disassembly apparatus of claim 1 or 2, wherein: the frame body comprises a left bracket arranged on the left side of the shaft and a right bracket arranged on the right side of the shaft, the left bracket and the right bracket are fixedly connected through a nut, and the nut is in threaded connection with a screw rod; the left support is connected with the left bracket through screws, and the right support is connected with the right bracket through screws.

4. A miniature bearing removal apparatus as set forth in claim 3, wherein: the through holes on the left bracket and the right bracket are arranged in a one-to-one correspondence manner, and the through holes arranged in a corresponding manner are arranged at the same horizontal height.

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