Insulating bearing curing tool

Abstract

The utility model provides an insulating bearing curing tool which is used for bearing a bearing (B) and comprises a bearing part (10), the bearing part (10) is in a circular truncated cone shape or a conical shape, one axial end of the bearing part (10) forms a small end (101), the other axial end of the bearing part (10) forms a large end (102), the outer diameter of the large end (102) is larger than the inner diameter of the bearing (B), and the outer diameter of the small end (101) is smaller than the inner diameter of the bearing (B). And under the condition that the bearing (B) is sleeved on the periphery of the bearing piece (10), the bearing piece (10) is not in contact with the outer ring of the bearing (B). According to the insulation bearing curing tool, the structure is simple, the bearing can be stably borne under the condition that the outer ring of the bearing is not contacted, and transfer of the bearing and curing of an insulation coating are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bearings, and more particularly to an insulation bearing curing tool. BACKGROUND

[0002] In order to avoid damage to bearings caused by shaft current in, for example, an electric motor, one method is to provide an insulation coating on the outer ring of the bearing. The insulation coating is usually applied to the outer ring of the bearing by spraying, and after spraying is completed, the bearing is generally placed in an oven to cure the coating by heating.

[0003] Since the outer peripheral surface and the axial end surface of the outer ring of the bearing are attached with the coating in a liquid or semi-cured state before curing, suitable tooling is required to hold the bearing during transfer of the bearing to the oven and when the bearing is placed in the oven, so as to avoid damage to the uncured coating. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to overcome or at least alleviate the deficiencies of the prior art, and to provide an insulation bearing curing tool with a simple structure.

[0005] The present application provides an insulation bearing curing tool for carrying a bearing, wherein,

[0006] The tooling includes a carrier, which is in the shape of a circular truncated cone or a circular cone, with one axial end formed as a small end and the other axial end formed as a large end. The outer diameter of the large end is greater than the inner diameter of the bearing, and the outer diameter of the small end is less than the inner diameter of the bearing.

[0007] In the case where the bearing is sleeved on the outer periphery of the carrier, the carrier does not contact the outer peripheral surface and the axial end surface of the outer ring of the bearing.

[0008] In at least one embodiment, the tooling further includes a central shaft, and the center of the carrier is formed with a positioning hole extending in the axial direction of the carrier, which is a through hole or a blind hole.

[0009] The central shaft at least partially extends into the positioning hole.

[0010] In at least one embodiment, the tooling further includes a base, and the central shaft is vertically mounted on the base.

[0011] In at least one embodiment, the tooling includes a plurality of carriers, which are stacked in the axial direction in a detachable manner.

[0012] In at least one embodiment, the carrier is frustum-shaped, the positioning hole is a through hole, and the central shaft passes through the positioning holes of the multiple carriers, such that the multiple carriers are connected in series with the small end of one abutting the large end of another.

[0013] In at least one embodiment, the center of the end face of the large end of the carrier is recessed to form a positioning hole extending axially along the carrier, the contour of the inner wall of the positioning hole being the same as the contour of the small end.

[0014] The end of one of the two adjacent carriers stacked together, near the smaller end, is inserted into the positioning hole of the other to obtain positioning.

[0015] In at least one embodiment, the large end of the carrier protrudes outward to form a convex portion, and the small end of the carrier is recessed inward to form a concave portion.

[0016] In two adjacent carriers stacked together, the protrusion of one extends into the recess of the other.

[0017] In at least one embodiment, neither of the two adjacent carriers stacked together contacts the outer ring of the bearing disposed between the two adjacent carriers.

[0018] The insulating bearing curing fixture according to this application has a simple structure and can stably support the bearing without contacting the outer ring of the bearing, facilitating the transfer of the bearing and the curing of the insulating coating. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a tooling bearing according to the first embodiment of this application.

[0020] Figure 2 yes Figure 1 A cross-sectional diagram.

[0021] Figure 3 yes Figure 1 A sectional view.

[0022] Figure 4 This is a schematic diagram of a tooling bearing according to the second embodiment of this application.

[0023] Figure 5 yes Figure 4 A sectional view.

[0024] Figure 6 This is a schematic diagram of a tooling bearing according to the third embodiment of this application.

[0025] Figure 7 yes Figure 6 A cross-sectional diagram.

[0026] Explanation of reference numerals in the attached figures:

[0027] B Bearing; 10 Bearing component; 11 Locating hole; 101 Small end; 102 Large end; 20 Central shaft; 21 Shaft part; 22 Flange part; 23 Base; 30 Base; 40 Connecting component. Detailed Implementation

[0028] Exemplary embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are for teaching those skilled in the art how to implement the present invention, and are not intended to exhaustively describe all possible ways of the invention, nor to limit the scope of the invention.

[0029] First embodiment

[0030] Reference Figures 1 to 3 This paper describes an insulating bearing curing fixture according to a first embodiment of this application. Unless otherwise specified, the terms axial, radial, and circumferential refer to the axial, radial, and circumferential directions of the bearing.

[0031] The insulating bearing curing fixture of this embodiment (hereinafter referred to as the fixture) includes a carrier 10, a central shaft 20, a base 30, and a connector 40. The central shaft 20 is fixed to the base 30 via the connector 40, and the carrier 10 is mounted on the central shaft 20. The carrier 10 is used to place the bearing B to be cured.

[0032] Specifically, the carrier 10 is frustum-shaped and has a small end 101 and a large end 102. The outer diameter of the small end 101 is smaller than the inner diameter of the bearing B, and the outer diameter of the large end 102 is larger than the inner diameter of the bearing B. The bearing B is fitted onto the carrier 10 via the small end 101 and is held in the axial middle region of the carrier 10. The bearing B only contacts the carrier 10 at the end of its inner ring; the entire outer ring of the bearing B is suspended relative to the carrier 10. Therefore, the coating on the outer circumferential surface of the outer ring and the two axial end faces of the bearing B will not be damaged.

[0033] By reasonably setting the outer diameters of the small end 101 and the large end 102, the difference between the outer diameters of the small end 101 and the large end 102 can be made large, so that the bearing 10 can adapt to bearings B with different inner diameters.

[0034] In this embodiment, the carrier 10 and the central shaft 20 are fixed by interlocking. Specifically, the center of the end face of the large end 102 of the carrier 10 is recessed inward to form a positioning hole 11. The central shaft 20 includes a shaft portion 21, a flange portion 22, and a base portion 23, with the shaft portion 21 and the base portion 23 respectively connected to the axial ends of the flange portion 22. The shaft portion 21 is embedded in the positioning hole 11, the flange portion 22 abuts against the large end 102, and the base portion 23 is connected to the base 30.

[0035] It is to be noted that although the positioning hole 11 is in the form of a blind hole in the present embodiment, this is not essential and the positioning hole 11 can also be a through hole. In addition, the positioning hole 11 can also be a threaded hole, and the insertion portion of the shaft portion 21 is formed with a thread to engage with the thread of the positioning hole 11.

[0036] Second embodiment

[0037] Reference Figure 4 and Figure 5 A second embodiment of the present application will be described. The second embodiment is a modification of the first embodiment, and the same reference numerals are assigned to components that are the same as or similar to those in the first embodiment, and detailed description of these components will be omitted.

[0038] The difference between the present embodiment and the first embodiment is that the tooling has a plurality of carriers 10, and a plurality of bearings B can be carried and cured at the same time.

[0039] The positioning hole 11 in the form of a through hole extending in the axial direction is formed in the inside center of the carrier 10 in the present embodiment, and the shaft portion 21 of the center shaft 20 is inserted through the plurality of carriers 10 in order, so that the plurality of carriers 10 are connected in series with the small end 101 of one carrier 10 abutting against the large end 102 of the adjacent other carrier 10. The outer periphery of each carrier 10 is fitted with at least one bearing B, and it is to be understood that in the case where the inner diameter of the bearing B is different, the outer periphery of one carrier 10 can be fitted with two or more bearings B in a manner spaced in the axial direction.

[0040] It is to be understood that the fitting order of the adjacent carriers 10 and the bearings therebetween is (in the case where one bearing B is fitted to each carrier 10):

[0041] First, the first carrier 10 is fitted to the shaft portion 21, and then the first bearing B is placed on the first carrier 10. Of course, this step can be modified so that the first bearing B is fitted to the outer periphery of the first carrier 10, and then the first carrier 10 with the bearing B thereon is fitted to the shaft portion 21.

[0042] Second, the second carrier 10 is fitted to the shaft portion 21 so that the large end 102 of the second carrier 10 abuts against the small end 101 of the first carrier 10, and then the second bearing B is placed on the second carrier 10. Of course, this step can be modified so that the second bearing B is fitted to the outer periphery of the second carrier 10, and then the second carrier 10 with the bearing B thereon is fitted to the shaft portion 21 so that the large end 102 of the second carrier 10 abuts against the small end 101 of the first carrier 10.

[0043] Third embodiment

[0044] Reference Figure 6 and Figure 7 A third embodiment of the present application is introduced. The third embodiment is a variant of the first and second embodiments. The main difference between the third embodiment and the second embodiment is that the plurality of bearing holders 10 in the third embodiment are connected to each other in a nested manner, without the need of the central shaft 20 to achieve positioning and connection.

[0045] In the third embodiment, the end face of the large end 102 of the bearing holder 10 is inwardly recessed in the center to form a blind hole shaped positioning hole 11, the inner wall of the positioning hole 11 has substantially the same profile as the end portion near the small end 101 of the adjacent bearing holder 10, so that the end portion near the small end 101 of one of the adjacent bearing holders 10 is embedded into the positioning hole 11 of the other, to achieve detachable connection of the adjacent bearing holders 10.

[0046] It should be understood that the above embodiments and parts of aspects or features thereof can be properly combined.

[0047] The present application has at least one of the following advantages:

[0048] (i) The tooling according to the present application is simple in structure, and can carry the bearing without contacting the outer ring of the bearing, so that the insulating coating attached to the outer ring is not easily damaged during transfer or curing.

[0049] (ii) The tooling according to the present application can be provided with multiple bearing holders as needed, to carry multiple bearings in limited space, improving the curing efficiency.

[0050] Of course, the present application is not limited to the above embodiments, and those skilled in the art can make various modifications to the above embodiments of the present application under the teaching of the present application, without departing from the scope of the present application. For example:

[0051] (i) The bearing holder 10 can also be substantially conical, i.e. the small end 101 can be pointed.

[0052] (ii) For the nested connection of the adjacent bearing holders 10, one of the small ends can form a protrusion, and the other of the large ends can form a recess, or one of the small ends can form a recess, and the other of the large ends can form a protrusion, and the protrusion and the recess are connected to each other in a nested manner.

Claims

1. An insulating bearing curing fixture for supporting bearing (B), characterized in that, The tooling includes a support member (10), which is frustum-shaped or conical. One axial end of the support member (10) is formed as a small end (101), and the other axial end is formed as a large end (102). The outer diameter of the large end (102) is larger than the inner diameter of the bearing (B), and the outer diameter of the small end (101) is smaller than the inner diameter of the bearing (B). When the bearing (B) is fitted onto the outer periphery of the carrier (10), the carrier (10) does not contact the outer peripheral surface and axial end face of the outer ring of the bearing (B).

2. The insulating bearing curing fixture according to claim 1, characterized in that, The tooling also includes a central shaft (20), and a positioning hole (11) extending axially along the center of the support member (10) is formed therein. The positioning hole (11) is a through hole or a blind hole. The central shaft (20) extends at least partially into the positioning hole (11).

3. The insulating bearing curing fixture according to claim 2, characterized in that, The tooling also includes a base (30), and the central shaft (20) is vertically mounted on the base (30).

4. The insulating bearing curing fixture according to claim 2, characterized in that, The tooling includes a plurality of carriers (10), which are stacked axially in a detachable manner.

5. The insulating bearing curing fixture according to claim 4, characterized in that, The carrier (10) is frustum-shaped, the positioning hole (11) is a through hole, and the central shaft (20) passes through the positioning holes (11) of multiple carriers (10), so that multiple carriers (10) are connected in series with the small end (101) of one abutting the large end (102) of the other.

6. The insulating bearing curing fixture according to claim 4, characterized in that, The center of the end face of the large end (102) of the support member (10) is recessed inward to form a positioning hole (11) extending axially along the support member (10). The contour of the inner wall of the positioning hole (11) is the same as the contour of the small end (101). The end of one of the two adjacent carriers (10) stacked together, near the small end (101), is inserted into the positioning hole (11) of the other for positioning.

7. The insulating bearing curing fixture according to claim 4, characterized in that, The large end (102) of the support member (10) protrudes outward to form a convex portion, and the small end (101) of the support member (10) is concave inward to form a concave portion. In two adjacent carriers (10) stacked together, the protrusion of one extends into the recess of the other.

8. The insulating bearing curing fixture according to any one of claims 4 to 7, characterized in that, Neither of the two adjacent carriers (10) stacked together contacts the outer ring of the bearing (B) disposed between the two adjacent carriers (10).

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