Bearing outer ring dismounting tool

Abstract

The utility model discloses a bearing outer ring dismounting tool which comprises a supporting seat, a connecting plate is arranged above the supporting seat, the top face of the supporting seat is parallel to the bottom face of the connecting plate, a through threaded hole is formed in the center of the connecting plate, a center rod is connected in the threaded hole through threads, and a bearing outer ring is arranged in the center rod. A connecting rod is arranged on each of the two sides of the connecting plate in a penetrating mode, the upper portions of the connecting rods and the connecting plate are fixed together through fasteners, the lower portions of the connecting rods penetrate out of the supporting base, and replaceable pull blocks are arranged at the bottoms of the connecting rods. By the adoption of the bearing outer ring dismounting tool, the bearing outer ring and the bearing seat can be thoroughly prevented from being damaged in the dismounting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing dismounting frock technical field, especially a bearing outer ring dismounting frock. BACKGROUND

[0002] The bearing outer ring is an important component of the bearing and plays multiple key roles in the gear box: (1) support and fixation: the bearing outer ring is the outer ring in the bearing, usually made of steel plate by cold pressing, and mainly functions to support the bearing and prevent external substances from entering the bearing interior. The outer ring is usually installed in the external housing or bearing seat and fixed through cooperation with the bearing seat to fix the entire bearing assembly. (2) bearing external load: the outer ring bears the radial load from the gear box housing through cooperation with the bearing seat and transmits these forces to the support structure, thereby maintaining the structural stability of the bearing. (3) protection of internal components: the outer ring, as the external barrier of the bearing, can prevent dust, moisture and other contaminants from entering the bearing interior, thereby protecting the internal components such as the rolling elements (rollers or balls) and the cage.

[0003] During the assembly of the gear box, the bearing outer ring and the bearing seat are in interference fit, and external force is needed to assemble the bearing outer ring into the bearing seat. During the process of repairing the gear box or overall overhaul, the bearing outer ring needs to be disassembled from the bearing seat. The traditional disassembly process usually adopts violent breaking and disassembly, and the disassembled bearing outer ring and bearing seat will be damaged and cannot be used continuously, or a complex and expensive special frock is used for disassembly. The frock has high manufacturing cost and low disassembly efficiency, and cannot realize multi-station operation at the same time.

[0004] Therefore, there is an urgent need in the art to design a dismounting frock specially for the bearing outer ring. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a bearing outer ring dismounting frock.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme as follows:

[0007] A bearing outer ring dismounting frock, comprising a support seat, a connecting plate is arranged above the support seat, the top surface of the support seat and the bottom surface of the connecting plate are parallel to each other, a through threaded hole is formed in the center of the connecting plate, a center rod is connected with the threaded hole through screw threads, one connecting rod is arranged on each side of the connecting plate, the upper part of the connecting rod is fixed with the connecting plate through a fastener, the lower part of the connecting rod is arranged to pass through the support seat, and a replaceable pull block is arranged at the bottom of the connecting rod.

[0008] The top surface of the support seat is circular.

[0009] The cross section of the connecting plate is circular.

[0010] The edges of the lower bottom surface of the support base extend downward vertically.

[0011] The bottom of the connecting rod is provided with a threaded hole, and the top of the replaceable pulling block is provided with a protruding bolt.

[0012] The cross section of the replaceable pulling block is triangular, and the end thereof is smoothly processed.

[0013] Compared with the prior art, the bearing outer ring dismounting tool has the following advantages:

[0014] The bearing outer ring dismounting tool has the advantages of simple structure, convenient use, complete avoidance of damage of the bearing outer ring and the bearing seat during dismounting, quick separation of interference fit of the bearing outer ring, single-person operation, significant reduction of labor intensity, no metal debris splashing and noise pollution during tool dismounting process, improvement of working environment, low manufacturing cost, realization of multi-station simultaneous operation, improvement of work efficiency and reduction of labor cost.

[0015] The bearing outer ring dismounting tool is further described below in combination with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 Fig. 1 is a structural schematic view of the bearing outer ring dismounting tool.

[0017] Fig. 2 Fig. 2 is a schematic view of the bearing outer ring dismounting tool in use.

[0018] Fig. 3 Fig. 3 is a schematic view of the bearing outer ring dismounting tool in use (the bearing seat is not drawn).

[0019] In the figure, 1 is a bearing outer ring, 2 is a bearing seat, 3 is a support base, 4 is a connecting rod, 5 is a fastener, 6 is a center rod, 7 is a connecting plate, and 8 is a replaceable pulling block. DETAILED DESCRIPTION

[0020] As Figs. 1-3As shown, a bearing outer ring dismounting tool comprises a support base 3, a connecting plate 7 is arranged above the support base 3, the top surface of the support base 3 and the bottom surface of the connecting plate 7 are parallel to each other, a through threaded hole is formed in the center of the connecting plate 7, a center rod 6 is threadedly connected in the threaded hole, a connecting rod 4 is arranged on each side of the connecting plate 7, the upper part of the connecting rod 4 is fixed to the connecting plate 7 by a fastener 5, the lower part of the connecting rod 4 is arranged to pass through the support base 3, and a replaceable pull block 8 is arranged at the bottom of the connecting rod 4.

[0021] The top surface of the support base 3 is circular and has a diameter greater than the maximum diameter of the bearing outer ring 1. The cross section of the connecting plate 7 is circular. The edges of the lower bottom surface of the support base 3 extend downward vertically into two guards, and the distance between the two guards is greater than the maximum diameter of the bearing outer ring 1. The fastener 5 comprises a nut and a washer.

[0022] A threaded hole is formed in the center of the bottom of the connecting rod 4, a protruding bolt is arranged at the top of the replaceable pull block 8, and the connecting rod 4 and the replaceable pull block 8 are threadedly connected together. The cross section of the replaceable pull block 8 is triangular, and the end is rounded.

[0023] The working process of dismounting the bearing outer ring using the dismounting tool is as follows:

[0024] First, the replaceable pull block 8 is installed at the bottom of the connecting rod 4, the connecting rod 4 is moved, and the replaceable pull block 8 is placed in the gap between the bearing seat 2 and the bearing outer ring 1. The outer side upper surface of the replaceable pull block 8 abuts against the lower bottom surface of the bearing outer ring 1.

[0025] The support base 3 is arranged to pass through the connecting rod 4 and is arranged on the bearing seat 2 (the two guards of the support base 3 abut against the upper surface of the bearing seat 2), the connecting plate 7 is arranged to pass through the connecting rod 4, and the connecting plate 7 and the connecting rod 4 are fixed together by the fastener 5.

[0026] The center rod 6 is screwed into the center threaded hole of the connecting plate 7, and as the screwing continues, the tightening force is applied to the replaceable pull block 8, the bearing outer ring 1 is pulled upward vertically by the replaceable pull block 8, and the bearing outer ring 1 is completely separated from the bearing seat 2.

[0027] The above-described embodiments only describe the preferred embodiments of the utility model, and do not limit the scope of the utility model, and cannot be understood as limiting the utility model. Without departing from the design spirit of the utility model, various deformations and improvements of the technical solutions of the utility model made by ordinary skilled in the art shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A bearing outer race dismounting tool, characterized by: The utility model provides a support seat (3) is provided with the connecting plate (7) on the top, the top surface of support seat (3) and the bottom surface of connecting plate (7) are parallel to each other, the central part of connecting plate (7) is provided with the through screw hole, the central rod (6) is connected in the screw hole, the both sides of connecting plate (7) are provided with a connecting rod (4), the upper portion of connecting rod (4) is fixed with connecting plate (7) through fastener (5), the lower portion of connecting rod (4) is out of support seat (3), the bottom of connecting rod (4) is provided with replaceable pull block (8).

2. The bearing cone dismounting tool according to claim 1, characterized in that: The top surface of the support seat (3) is circular.

3. The bearing cone dismounting tool of claim 1, wherein: The cross section of the connecting plate (7) is circular.

4. The bearing cone dismounting tool of claim 1, wherein: The edges of the lower bottom surface of the support seat (3) extend downward vertically.

5. The bearing cone disassembly tool of claim 1, wherein: The bottom of the connecting rod (4) is provided with a threaded hole, the top of the replaceable pull block (8) is provided with a protruding bolt, and the connecting rod (4) and the replaceable pull block (8) are connected together by threads.

6. The bearing cone disassembly tool of claim 1, wherein: The cross section of the replaceable pull block (8) is triangular, and the end is rounded.

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