Inner ring phosphating protection tool for cylindrical roller bearing

Abstract

The utility model discloses an inner ring phosphating protection tool for a cylindrical roller bearing, which comprises a shaft sleeve, a bottom ring and a top ring, the bottom ring is provided with an accommodating through groove for accommodating the inner ring of the bearing, the bottom ring and the top ring are connected in a fastening manner through a connecting piece, and the shaft sleeve is fixedly connected with the bottom ring through the connecting piece. The inner circumferential wall of the top ring is provided with an abutting flange used for abutting against the end face of a bearing inner ring, a rubber ring abuts against the position between the bottom ring and the top ring, the rubber ring extends into the containing through groove to form a positioning flange, and a gap groove used for being connected with a protrusion on the edge of the bearing inner ring in a clamped mode is formed between the positioning flange and the abutting flange. The device is simple and reasonable in structure, can effectively isolate and protect the roller path and the flange in the phosphorization process, and has a good use effect.

Description

Technical Field

[0001] The utility model relates to an inner ring phosphating protection tooling for a cylindrical roller bearing. Background Art

[0002] At present, the rings of double-row cylindrical roller bearings used in rail transit axle boxes need to be phosphated to improve the corrosion resistance and oxidation resistance of bearing parts. The bearing industry usually adopts an overall phosphating process for the rings, that is, the rings are integrally immersed in a phosphate solution at a certain temperature to form a phosphating film on the surface. However, this phosphating process will damage the finish surface of the raceway of the bearing ring, ultimately resulting in a significant reduction in the service life of the bearing. And some bearing enterprises first perform overall phosphating on the rings, and then grind the raceway and rib of the phosphated rings and perform superfinishing on the raceway to remove the phosphating layer on the surface of the raceway and rib, so as to improve the surface accuracy of the raceway of the ring and obtain a good microtopography. However, this process easily causes the phosphating layer on the end face of the bearing ring to be worn during the grinding and superfinishing processes, resulting in poor appearance. At the same time, this production process has low efficiency and unstable bearing quality. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides an inner ring phosphating protection tooling for a cylindrical roller bearing, which has a simple and reasonable structure, can effectively isolate and protect the raceway and rib during the phosphating process, and has a good use effect.

[0004] To achieve the above object, the utility model provides an inner ring phosphating protection tooling for a cylindrical roller bearing, including a bottom ring and a top ring. A receiving through groove for receiving the inner ring of the bearing is formed in the bottom ring. The bottom ring and the top ring are fixedly connected by a connecting member. A contact flange for contacting the end face of the inner ring of the bearing is arranged on the inner peripheral wall of the top ring. A rubber ring is abutted between the bottom ring and the top ring. The rubber ring extends into the receiving through groove with a positioning flange. A clearance groove for clamping with the edge protrusion of the inner ring of the bearing is formed between the positioning flange and the contact flange.

[0005] The beneficial effect of such a setting is as follows: By setting the bottom ring and the top ring, the inner ring of the bearing can be fastened, so as to isolate the raceway and rib of the inner ring, avoid damaging the microtopography of the raceway and rib of the inner ring of the bearing during the phosphating process. At the same time, the contact flange and the positioning flange can better position and protect the rib of the inner ring. The structure is simple and the positioning is reliable. Further, as a preference, the material of the rubber ring has the properties of high temperature resistance, acid and alkali resistance, such as acrylate or fluororubber, etc., and the hardness is moderate, preventing problems such as corrosion, aging, and deformation of the rubber in contact with the phosphating solution during the phosphating process of the ring, which affects the sealing effect. This structure is simple, the connection is reliable, and it has a good use effect.

[0006] As a further configuration of the utility model, a plurality of connecting ports are provided on the end surface of the bottom ring, the connecting member is provided on the top ring, the connecting member includes a connecting seat, a swing arm and a connecting rod, the connecting seat is connected to the top ring, the swing arm is rotatably connected to the connecting seat through a connecting shaft, an eccentric flange is formed on the connecting shaft, the connecting rod and the connecting seat are clearance-matched, one end of the connecting rod is rotatably connected to the eccentric flange, and the other end is circumferentially provided with a resistance platform and provided in the connecting port, and a clamping step is circumferentially provided in the connecting port corresponding to the position of the resistance platform.

[0007] The beneficial effect of such an arrangement is that by so arranging, the swing arm can be rotated, and the connecting rod can be driven to move up and down through the eccentric flange structure on the connecting rod, so that when tightening is required, the connecting rod is pulled so that the abutment platform on the connecting rod abuts against the clamping step, thereby fixing the bottom ring and the top ring; when loosening is required, the connecting rod can be loosened by rotating the swing arm, thereby unlocking the connection. This structure is simple, the fastening is reliable, the operation is convenient, and it has a good use effect.

[0008] As a further configuration of the utility model, a sealing strip is provided in the gap groove.

[0009] The beneficial effect of such arrangement is as follows: through such arrangement, the sealing strip is respectively adhered to the mating surfaces of the top ring and the bottom ring with high temperature resistant sealant, and after the inner ring of the cylindrical roller bearing to be phosphated is placed in a fixed position on the bottom ring of the protective tooling, the top ring of the protective tooling is placed on the upper part of the inner ring. Here, the material of the sealing strip is resistant to high temperature and acid and alkali as a mailbox, such as acrylate or fluororubber, and has moderate hardness, which prevents the rubber of the ferrule from contacting the phosphating liquid during the phosphating process, causing corrosion, aging, deformation and other problems that affect the sealing effect. The sealing strip can better perform isolation and protection, facilitate installation and positioning, and has a simple structure, which is conducive to implementation and has a good use effect.

[0010] As a further configuration of the utility model, a support step is circumferentially provided on the bottom surface of the bottom ring for contacting with the bottom surface of the inner ring of the bearing, an embedding groove is provided on the support step, a bottom sealing ring is embedded in the embedding groove, and a folded edge is formed on the bottom sealing ring for surrounding the support step.

[0011] The beneficial effect of such an arrangement is that the bottom surface of the inner ring of the bearing can be further shielded to avoid damage to the bottom surface of the inner ring caused by the phosphating process. At the same time, the structure is simple, easy to implement, and has a good use effect. At the same time, the bottom sealing ring can play an anti-slip and anti-slip effect, further improving the stability of the structure.

[0012] As a further configuration of the utility model, the rubber ring is provided with two layers, and a socket is provided at a position of the rubber ring corresponding to the connection port.

[0013] The beneficial effect of such arrangement is that the connection rod can be inserted easily and the positioning of the rubber ring can be facilitated, thereby preventing the rubber ring from deviating during use and achieving good stability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The utility model is used for the inner ring phosphating protection tooling of cylindrical roller bearings. Figure 1 and Figure 2 As shown: it includes a bottom ring 1 and a top ring 2, the bottom ring 1 is provided with an accommodating groove for accommodating the inner ring of the bearing, the bottom ring 1 and the top ring 2 are fastened together by a connecting piece, the inner circumferential wall of the top ring 2 is provided with an abutting flange 21 for abutting against the end face of the inner ring of the bearing, a rubber ring 4 abuts between the bottom ring 1 and the top ring 2, the rubber ring 4 extends a positioning flange into the accommodating groove, and a clearance groove for clamping with the edge protrusion of the inner ring of the bearing is formed between the positioning flange and the abutting flange 21. The beneficial effect of such arrangement is as follows: in such arrangement, the inner ring of the bearing can be fastened by the bottom ring 1 and the top ring 2, thereby isolating the raceway and the rib of the inner ring, avoiding damage to the microscopic morphology of the raceway and the rib of the inner ring of the bearing during the phosphating process; at the same time, the inner ring rib can be better positioned and protected by the abutting flange 21 and the positioning flange; the structure is simple and the positioning is reliable; further, the material of the rubber ring 4 is preferably resistant to high temperature and acid and alkali, such as acrylate or fluororubber, and has moderate hardness, to prevent the rubber of the ferrule from contacting the phosphating liquid during the phosphating process, causing corrosion, aging, deformation and other problems that affect the sealing effect; the structure is simple, the connection is reliable and has a good use effect.

[0017] As a further configuration of the present embodiment, a plurality of connection ports are provided on the end face of the bottom ring 1, the connection member is provided on the top ring 2, the connection member includes a connection seat 3, a swing arm 31 and a connection rod 32, the connection seat is connected to the top ring 2, the swing arm 31 is rotatably connected to the connection seat 3 through a connecting shaft, an eccentric flange is formed on the connecting shaft, the connection rod 32 is clearance-fitted with the connection seat 3, one end of the connection rod 32 is rotatably connected to the eccentric flange, and the other end is circumferentially provided with an abutment platform 33 and is provided in the connection port, and a clamping step is circumferentially provided in the connection port corresponding to the position of the abutment platform 33. The beneficial effect of such arrangement is that by such arrangement, by rotating the swing arm 31, the connecting rod 32 can be driven to move up and down through the eccentric flange structure on the connecting rod 32, so that when tightening is required, the connecting rod 32 is pulled so that the abutment platform on the connecting rod 32 abuts against the clamping step, thereby fixing the bottom ring 1 and the top ring 2. When loosening is required, the connecting rod 32 can be loosened by rotating the swing arm 31, thereby unlocking the connection. This structure is simple, the fastening is reliable, the operation is convenient, and it has a good use effect.

[0018] As a further configuration of this embodiment, a sealing strip 5 is provided in the gap groove. The beneficial effect of such configuration is that, through such configuration, the sealing strip 5 is respectively adhered to the mating surfaces of the top ring 2 and the bottom ring 1 by using a high temperature resistant sealant, and after the inner ring of the cylindrical roller bearing to be phosphated is placed in a fixed position of the bottom ring 1 of the protective tooling, the top ring 2 of the protective tooling is placed on the upper part of the inner ring. Here, the material of the sealing strip 5 has high temperature and acid and alkali resistance as a mailbox, such as acrylate or fluororubber, and has moderate hardness, so as to prevent the rubber of the ferrule from contacting the phosphating liquid during the phosphating process, causing corrosion, aging, deformation and other problems that affect the sealing effect. The sealing strip 5 can be better isolated and protected, and is convenient for installation and positioning. At the same time, the structure is simple, which is conducive to implementation and has a good use effect.

[0019] As a further configuration of this embodiment, the bottom surface of the bottom ring 1 is provided with a support step 11 for contacting with the bottom surface of the bearing inner ring along the circumferential direction, and the support step 11 is provided with an embedding groove, in which a bottom sealing ring 6 is embedded, and a folding edge is formed on the bottom sealing ring 6 for surrounding the support step 11. The beneficial effect of this configuration is that through this configuration, the bottom surface of the bearing inner ring is further shielded to avoid damage to the bottom surface of the inner ring by the phosphating process, and at the same time, the structure is simple, easy to implement, and has a good use effect, and at the same time, the bottom sealing ring 6 can play an anti-slip and anti-slip effect, further improving the stability of the structure in use.

[0020] As a further setting of this embodiment, the rubber ring 4 is provided with two layers, and the rubber ring 4 is provided with a socket corresponding to the connection port position. The beneficial effect of such a setting is that: through such a setting, it is convenient for the insertion of the connecting rod 32, and at the same time, it is convenient for the positioning of the rubber ring 4, avoiding the rubber ring 4 from running off during use, and having good use stability.

[0021] The above examples are only one of the preferred specific examples of the present invention, and the general changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are included in the protection scope of the present invention.

Claims

1. A phosphating protective tool for the inner ring of a cylindrical roller bearing, characterized in that: It includes a bottom ring and a top ring, the bottom ring is provided with an accommodating groove for accommodating the inner ring of the bearing, the bottom ring and the top ring are fastened together by a connecting piece, the inner peripheral wall of the top ring is provided with an abutting flange for abutting against the end face of the inner ring of the bearing, a rubber ring abuts between the bottom ring and the top ring, a positioning flange extends from the rubber ring into the accommodating groove, a clearance groove for clamping with the edge protrusion of the inner ring of the bearing is formed between the positioning flange and the abutting flange.

2. The inner ring phosphating protective tooling for cylindrical roller bearings according to claim 1 is characterized in that: A plurality of connection ports are arranged on the end surface of the bottom ring, the connection member is arranged on the top ring, the connection member includes a connection seat, a swing arm and a connection rod, the connection seat is connected to the top ring, the swing arm is rotatably connected to the connection seat through a connecting shaft, an eccentric flange is formed on the connecting shaft, the connecting rod and the connection seat are clearance-matched, one end of the connecting rod is rotatably connected to the eccentric flange, and the other end is circumferentially provided with an abutment platform and arranged in the connection port, and a clamping step is circumferentially provided in the connection port corresponding to the position of the abutment platform.

3. The inner ring phosphating protective tooling for cylindrical roller bearings according to claim 1 is characterized in that: A sealing strip is arranged in the gap groove.

4. The inner ring phosphating protective tooling for cylindrical roller bearings according to claim 1 is characterized in that: The bottom surface of the bottom ring is circumferentially provided with a support step for contacting the bottom surface of the bearing inner ring. The support step is provided with an embedding groove in which a bottom sealing ring is embedded. The bottom sealing ring is formed with a folded edge for surrounding the support step.

5. The inner ring phosphating protective tooling for cylindrical roller bearings according to claim 2 is characterized in that: The rubber ring is provided with two layers, and a socket is provided at a position of the rubber ring corresponding to the connection port.

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