Heat treatment tool for shaping planeness of bearing ring

Abstract

The utility model relates to a heat treatment tool, in particular to a heat treatment tool for shaping the planeness of a bearing ring, which comprises a flat base, at least two kidney-shaped holes are arranged on the base, the kidney-shaped holes are oppositely arranged or uniformly distributed on the base, bolts are arranged in the kidney-shaped holes in a sliding mode, and the bolts are perpendicular to the base. The outer side of the bolt and the inner ring of the bearing ring are arranged in an attached mode or arranged at intervals, the cushion block is arranged on the inner side of the bolt, the pressing block is arranged on a screw rod of the bolt in a sleeved mode, the pressing block is arranged at the top of the bearing ring and the cushion block in a press fit mode, the nut is arranged above the pressing block, and the nut is matched with the bolt in a threaded mode. The device has the advantages of being low in manufacturing cost, easy to operate, durable, capable of saving labor and high in efficiency.

Description

Technical Field

[0001] The utility model relates to a heat treatment tool, in particular to a heat treatment tool for shaping the flatness of a bearing ring. Background Art

[0002] Conventional bearing rings have an outer diameter of φ300mm to φ500mm and a thickness of 30mm to 40mm. After quenching, the bearing rings have large warping deformation and a wavy surface, which cannot meet the requirements of use. The existing solutions are:

[0003] 1. Using complex heat treatment processes to reduce the large warping deformation and wavy shape of the bearing ring after quenching. This method has the problems of complex process, time-consuming and difficult operation;

[0004] 2. Using complex heat treatment tooling or correction tooling to solve the problem of large flat warping deformation and wavy flat surface of bearing ring after quenching. This method has the problems of high cost of purchasing tooling, low efficiency, high labor and high maintenance cost. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, a heat treatment tool is provided for shaping the flatness of a bearing ring.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a heat treatment tool for flatness shaping of a bearing ring, comprising a flat base, the base having at least two waist holes, the waist holes being relatively arranged or evenly distributed on the base, bolts being slidably arranged in the waist holes, the bolts being in a vertical state with the base, the outer side of the bolts being fitted with or spaced apart from the inner ring of the bearing ring, a pad being arranged on the inner side of the bolt, a pressure block being sleeved on the screw rod of the bolt, the pressure block being press-fitted on the top of the bearing ring and the pad, a nut being arranged above the pressure block, the nut being matched with the bolt thread.

[0007] Furthermore, a lifting ring hole is provided on the base, and a lifting ring is provided in the lifting ring hole.

[0008] Furthermore, the base is cross-shaped, and waist holes are provided on the horizontal section or the vertical section of the cross-shaped base; and hanging ring holes are provided on the horizontal section or the vertical section between the waist holes.

[0009] Furthermore, a stepped countersink is processed at the bottom of the waist hole, and the bolt passes through the waist hole from bottom to top, and the bolt head at the bottom of the bolt is submerged in the countersink.

[0010] Furthermore, the lower half of the screw is a smooth section, and the upper half of the screw is a threaded section.

[0011] The beneficial effects of the utility model are as follows: the utility model is a heat treatment tool for flatness shaping of a bearing ring, which has the characteristics of low cost, easy operation, durability, labor saving and high efficiency. Specifically:

[0012] First, the conventional heat treatment process is used, which is mature and stable.

[0013] Secondly, the simple structure of the present application is adjusted according to the size of the bearing ring, which has strong applicability; the tooling is only a cross-like pattern, replacing the previous flat tooling shape, saving costs; the bearing ring needs to be tempered after quenching, and the tooling is used to clamp the bearing ring before tempering. By measuring the high and low points of flatness, the high point is placed at the position where pressure is applied;

[0014] The bearing ring is also tightened and fixed by the tightening nut. The tooling and the bearing ring are subjected to force at the same time, will not be deformed, and can be reused; the warped product is restored to a flat surface, which is easy for operators to use and efficient, and can be completed by one person. The transfer is carried out through the lifting ring to ensure that the bearing ring is not damaged during the transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a structural diagram of the utility model after the bearing ring is installed;

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure from another angle;

[0018] Figure 3 It is a structural diagram of the base of the utility model.

[0019] In the figure: 1. Base, 2. Waist hole, 3. Eyelet hole, 4. Countersunk hole, 5. Bolt, 6. Bearing ring, 7. Spacer, 8. Pressure block. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Figures 1 to 3 The one shown is a heat treatment tool for flatness shaping of the bearing ring, including a base 1 with flat upper and lower surfaces. The style of the base 1 can be a cross shape as shown in the figure, or other shapes that can maintain balance. Taking the cross shape as an example, the base 1 has a waist hole 2 on the horizontal section of the cross-shaped base and a hanging eye hole 3 on the vertical section. The bottom of the waist hole 2 is processed with a stepped countersunk hole 4. The bolt 5 passes through the waist hole 2 from bottom to top, and the bolt head at the bottom of the bolt 5 is submerged in the countersunk hole 4. The bolt 4 is perpendicular to the base 1.

[0022] First, adjust the position of the bolt 5 in the waist hole 2 according to the inner diameter of the bearing ring 6, so that the outer side of the bolt 5 is in close contact with or spaced apart from the inner ring of the bearing ring 6;

[0023] Next, place a spacer 7 on the inner side of the bolt 5;

[0024] Then, a pressing block 8 is sleeved on the screw rod of the bolt 5. The pressing block 8 is a circular ring with a certain thickness. The pressing block 8 is pressed on the top of the bearing ring and the top of the spacer 7 at the same time.

[0025] Then, a nut is installed on the top of the pressing block 8. The nut is threadedly matched with the bolt 5. After tightening the nut, the bottom of the nut fixes the bearing ring 6 through the pressing block 8. The nut is not shown in the figure.

[0026] Finally, install the lifting ring in the lifting ring hole 3.

[0027] The bearing ring 6 needs to be tempered after quenching. Before tempering, the bearing ring 6 is clamped with a tool. By measuring the high and low points of the flatness, the high point is placed at the position where pressure is applied, that is, the position of the bolt 5. The bearing ring 6 is tightened and loosened by the tightening nut. When the nut is tightened, the tool and the bearing ring are subjected to force at the same time, and the warped part is restored to a flat surface, thereby achieving the shaping function.

[0028] In order to prevent the thread of the bolt 5 from damaging the bearing ring 6 during the disassembly and assembly process, the lower half of the screw is a smooth section and the upper half of the screw is a threaded section.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat treatment tool for flatness shaping of a bearing ring, characterized by: It includes a flat base with at least two waist holes on it. The waist holes are arranged relatively or evenly distributed on the base. Bolts are slidably arranged in the waist holes. The bolts and the base are in a vertical state. The outer side of the bolt is fitted with or spaced apart from the inner ring of the bearing ring. A pad is arranged on the inner side of the bolt. A pressure block is sleeved on the screw rod of the bolt. The pressure block is press-fitted on the top of the bearing ring and the pad. A nut is arranged above the pressure block, and the nut cooperates with the bolt thread.

2. The heat treatment tool for flatness shaping of a bearing ring according to claim 1, characterized in that: The base is also provided with a lifting ring hole, in which a lifting ring is arranged.

3. A heat treatment tool for flatness shaping of a bearing ring according to claim 1 or 2, characterized in that: The base is cross-shaped, with waist holes provided on the horizontal section or the vertical section of the cross-shaped base; and hanging ring holes are provided on the horizontal section or the vertical section between the waist holes.

4. The heat treatment tool for flatness shaping of a bearing ring according to claim 3, characterized in that: The bottom of the waist hole is processed with a step-shaped countersink, and the bolt passes through the waist hole from bottom to top, and the bolt head at the bottom of the bolt is submerged in the countersink.

5. The heat treatment tool for flatness shaping of a bearing ring according to claim 1, characterized in that: The lower half of the screw is a smooth section, and the upper half of the screw is a threaded section.

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