Cylindrical roller bearing with dismounting groove and special dismounting tool thereof

Abstract

The utility model discloses a cylindrical roller bearing with dismounting grooves, which comprises a bearing outer ring and a bearing inner ring, the bearing outer ring is sleeved on the outer side of the bearing inner ring, a retainer is arranged between the bearing outer ring and the bearing inner ring, a plurality of cylindrical rollers are uniformly distributed on the retainer, and the dismounting grooves are formed in the cylindrical rollers. A plurality of linear grooves are formed in the end face of one side of the bearing outer ring in the width direction, a circle of first dismounting grooves are formed in the outer wall of the bearing outer ring and communicate with the linear grooves, a circle of second dismounting grooves are formed in the outer wall of the bearing inner ring, and the first dismounting grooves and the second dismounting grooves are formed in the same side of the bearing. The dismounting grooves are formed in the bearing inner ring and the bearing outer ring so as to facilitate dismounting, especially the bearing outer ring which is most difficult to dismount, the special dismounting tool is arranged while the dismounting grooves are formed, and the bearing outer ring which is mounted in a tight fit mode can be dismounted through the special dismounting tool. The cylindrical roller bearing can well meet the practical requirement of a user for conveniently dismounting and replacing the cylindrical roller bearing.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing product and its matched tool technical field, more specifically, it relates to a cylindrical roller bearing with dismounting groove and its special dismounting tool. BACKGROUND

[0002] Cylindrical roller bearing is a kind of common bearing product, cylindrical roller bearing has big load capacity, mainly bears the characteristics of radial load, and cylindrical roller bearing is widely applied in the equipment of machinery, automobile, aviation and other fields.Conventional cylindrical roller bearing needs to cooperate with bearing seat and other components to use, and conventional cylindrical roller bearing is tightly fitted and installed in bearing seat and other bearing installation positions.Bearing is the vulnerable part on equipment, and there is the demand of replacing new bearing after old bearing is damaged, since bearing and bearing mounting component are tightly fitted, old bearing has the difficulty of dismounting, and users generally reflect that bearing is difficult to dismount, in view of the above situation, enterprises need to improve the structure of conventional cylindrical roller bearing to meet the practical needs of users. SUMMARY

[0003] The utility model aims at solving the demand of prior art, provide a cylindrical roller bearing with dismounting groove and its special dismounting tool, the utility model is equipped with dismounting groove on bearing inner ring and bearing outer ring, to facilitate dismounting, especially the most difficult dismounting bearing outer ring, while being equipped with the special dismounting tool, the special dismounting tool can dismount the bearing outer ring that is tightly fitted and installed, and the utility model can meet the practical needs of users for conveniently dismounting cylindrical roller bearing.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A cylindrical roller bearing with dismounting groove, comprising a bearing outer ring and a bearing inner ring, the bearing outer ring is sleeved on the outer side of the bearing inner ring, a retainer is installed between the bearing outer ring and the bearing inner ring, a plurality of cylindrical rollers are uniformly installed on the retainer, a plurality of straight grooves are formed on one side of the width direction of the end face of the bearing outer ring, a first dismounting groove is formed on the outer wall of the bearing outer ring, the first dismounting groove is communicated with the straight grooves, a second dismounting groove is formed on the outer wall of the bearing inner ring, and the first dismounting groove and the second dismounting groove are on the same side of the bearing.

[0006] Further, the straight grooves penetrate the thickness direction of the bearing outer ring, the plurality of straight grooves are uniformly arranged, and the number of the straight grooves is not less than two.

[0007] Further, an outer wall of the bearing outer ring is formed with a limiting stopper, the limiting stopper is protruded from the outer wall of the bearing outer ring, the limiting stopper is arranged at the side of the first dismounting groove, and the limiting stopper plays a role of limiting the installation depth of the bearing.

[0008] The utility model provides a special dismounting tool of cylindrical roller bearing, apply to a cylindrical roller bearing with dismounting groove, including main dish, pull board and pull -out ring rod, the edge of main dish is uniformly connected with a plurality of bifurcation board, the setting number and width size of bifurcation board correspond with linear slot on bearing outer ring match, main dish is connected to the side of bearing outer ring through bifurcation board flat -paving, pull board is arc, pull board inboard is connected with the insertion of connecting strip, the size of insertion connecting strip matches first dismounting groove, pull board is connected to first dismounting groove through insertion connecting strip, both ends of pull board are fixedly connected on two adjacent bifurcation board, pull -out ring rod right angle is connected to the central position of main dish.

[0009] Further, the pull-out ring rod is a threaded rod, a rod support is fixedly installed outside the dismounting direction of the bearing outer ring, the pull-out ring rod is screw installed in the rod support, the pull-out ring rod is installed through the rod support, a rod connecting seat is fixedly installed at the central position of the main dish, one end of the pull-out ring rod is rotatably connected to the rod connecting seat, and a power handle is fixedly connected to the other end of the pull-out ring rod.

[0010] The utility model discloses a beneficial effect is:

[0011] The utility model discloses dismounting groove is set up on bearing inner ring and bearing outer ring, to facilitate dismounting, especially the most difficult bearing outer ring of dismantling, is equipped with special dismounting tool while setting up dismounting groove, and the bearing outer ring of tight fit installation can be removed through special dismounting tool, the special dismounting tool of the utility model has the advantages of convenient assembly, convenient to use, and the utility model can satisfy the practical demand of user to convenient dismantling and replacing cylindrical roller bearing. ACCURACY OF DRAWINGS

[0012] Figure 1 It is a front view structural drawing of a cylindrical roller bearing with dismounting groove in the embodiment;

[0013] Figure 2 It is Figure 1 A-A section view structure diagram in;

[0014] Figure 3 It is Figure 2 The enlarged view of B in;

[0015] Figure 4 It is Figure 2 The enlarged view of C in;

[0016] Figure 5 It is Figure 1 D direction partial view in;

[0017] Figure 6 is a front view structural drawing of a special dismounting tool for a cylindrical roller bearing in the embodiment;

[0018] Figure 7 is a schematic view of dismounting a cylindrical roller bearing using a special dismounting tool for the cylindrical roller bearing.

[0019] The reference numerals: bearing outer ring 1, straight slot 11, first dismounting slot 12, limit stop 13, bearing inner ring 2, second dismounting slot 21, retainer 3, cylindrical roller 4, main disc 5, connecting rod seat 51, bifurcated plate 6, pull plate 7, insertion strip 71, pull ring rod 8, power handle 81, rod support 9. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] As shown in Figures 1-5 a cylindrical roller bearing with dismounting slots, comprising a bearing outer ring 1 and a bearing inner ring 2, the bearing outer ring 1 is sleeved on the outside of the bearing inner ring 2, a retainer 3 is installed between the bearing outer ring 1 and the bearing inner ring 2, and a plurality of cylindrical rollers 4 are uniformly installed on the retainer 3. The above is the basic structure to ensure that the present application has the basic function of the cylindrical roller bearing. To solve the problem of dismounting the bearing inner and outer rings, a first dismounting slot 12 is formed on the outer wall of the bearing outer ring 1, and a second dismounting slot 21 is formed on the outer wall of the bearing inner ring 2. The first dismounting slot 12 and the second dismounting slot 21 are respectively used for dismounting the bearing outer ring 1 and the bearing inner ring 2. The first dismounting slot 12 and the second dismounting slot 21 are arranged on the same side of the bearing in the present application. In this way, after the bearing product is installed, the first dismounting slot 12 and the second dismounting slot 21 are exposed on the same direction side, which is convenient for dismounting. In actual dismounting operation, the bearing inner ring 2 is relatively easy to dismount, so that the bearing inner ring 2 can be dismounted by directly applying a certain pulling force to the second dismounting slot 21 position. The bearing outer ring 1 is tightly connected with the bearing seat and other bearing supporting components, and cannot be dismounted from the bearing seat without applying a large force. In view of the above problem, a plurality of straight slots 11 are formed on the width direction side end face of the bearing outer ring 1. The straight slots 11 are formed on the end close to the first dismounting slot 12. The first dismounting slot 12 is in communication with the straight slots 11. Through the above design, a special dismounting tool can be installed on the side end face of the straight slots 11. The bearing outer ring 1 is pulled out by the special dismounting tool.

[0022] As shown in Figure 1 , the straight slot 11 penetrates the thickness direction of the bearing outer ring 1, and a plurality of through notches are formed on the thickness direction side end face of the bearing outer ring 1, the plurality of straight slots 11 are uniformly arranged, and the number of straight slots 11 is not less than two, so as to facilitate the connection with the special dismounting tool, such as Figure 1 , the number of straight slots 11 is 6, which is more conducive to the installation of the special dismounting tool.

[0023] As shown in Figure 2 and Figure 4 , a limiting stop 13 is formed on the outer wall of the bearing outer ring 1, the limiting stop 13 protrudes from the outer wall of the bearing outer ring 1, the limiting stop 13 is arranged on the side of the first dismounting slot 12, and the bearing product is installed with the unslotted side of the bearing, the limiting stop 13 limits the installation depth of the bearing, as shown in Figure 7 , when the limiting stop 13 abuts against the bearing seat, the bearing product is installed in place, at this time, the first dismounting slot 12 of the bearing outer ring 1 and the straight slot 11, and the second dismounting slot 21 on the bearing inner ring 2 are exposed, which can not only meet the use requirements of the bearing, but also expose the dismounting space of the bearing inner and outer rings, and facilitate the dismounting requirement in the future.

[0024] As shown in Figure 6 and Figure 7 , a special dismounting tool for cylindrical roller bearings, applied to the aforementioned cylindrical roller bearing with dismounting slots, the special dismounting tool is used after the bearing inner ring 2, the retainer 3 and the cylindrical roller 4 are removed, the special dismounting tool is mainly used to solve the dismounting problem of the bearing outer ring 1, the special dismounting tool includes a main disc 5, a pull plate 7 and a pull ring rod 8, a plurality of bifurcated plates 6 are uniformly connected on the edge of the main disc 5, the number and width of the bifurcated plates 6 correspond to the straight slots 11 on the bearing outer ring 1, the main disc 5 and the bifurcated plates 6 form a tool body, the tool body can be flatly connected to the side of the bearing outer ring 1, the bifurcated plates 6 are one-to-one corresponding to each straight slot 11, the pull plate 7 is arc-shaped, the pull plate 7 is connected with an insertion strip 71 on the inner side, the size of the insertion strip 71 matches the first dismounting slot 12, the pull plate 7 is installed by aligning the first dismounting slot 12 with the insertion strip 71, the pull plate 7 is connected to the first dismounting slot 12 through the insertion strip 71, the insertion strip 71 is matched and installed in the first dismounting slot 12, and the two ends of the pull plate 7 are fixedly connected to two adjacent bifurcated plates 6, as shown in Figure 6As shown, one pull plate 7 is connected and installed between every two adjacent bifurcated plates 6, and a plurality of pull plates 7 form the connection of one circle of the bearing outer ring 1 in the circumferential direction, when pulling, the bearing outer ring 1 is uniformly forced in the circumferential direction through the pull plate 7, so that the pulling is smooth, and the bearing outer ring 1 is not damaged, and the circle pulling rod 8 is connected at the central position of the main disc 5, and the circle pulling rod 8 is installed towards the outside of the dismounting direction of the bearing outer ring 1, and the circle pulling rod 8 can form the uniform force effect of the tool body on the bearing outer ring 1 in the circumferential direction, so that the bearing outer ring 1 is pulled out.

[0025] Since the bearing outer ring 1 is installed tightly, it is very laborious to directly force the circle pulling rod 8 to dismount, therefore, as shown, Figure 7 The utility model discloses a circle pulling rod 8 adopts a threaded rod, and a rod support 9 is fixedly installed on the outside of the dismounting direction of the bearing outer ring 1, the circle pulling rod 8 is screw-mounted on the rod support 9, the circle pulling rod 8 penetrates the rod support 9 and is installed, the central position of the main disc 5 is fixedly installed with a rod connecting seat 51, one end of the circle pulling rod 8 is rotationally connected to the rod connecting seat 51, and the other end of the circle pulling rod 8 is fixedly connected with a power-assisted handle 81, the power-assisted handle 81 is used to assist in screwing the circle pulling rod 8, since the circle pulling rod 8 is rotationally connected to the rod connecting seat 51, the screwing of the circle pulling rod 8 will not cause the rotation trend of the bearing outer ring 1, but only pull the linear movement of the bearing outer ring 1, since the bearing seat and other components are fixedly installed, the bearing outer ring 1 can be dismounted from the bearing seat and other components under the linear movement of the bearing outer ring 1, of course, the power-assisted handle 81 is only used to manually screw the circle pulling rod 8, and other electric devices can also be used to replace the power-assisted handle 81 to screw the circle pulling rod 8, so that the dismounting work of the bearing outer ring 1 is more labor-saving.

[0026] The preferred embodiments of the utility model are described above, the protection scope of the utility model is not only limited to the above-mentioned embodiments, and all technical schemes under the idea of the utility model belong to the protection scope of the utility model. It should be noted that, for ordinary skilled persons in the art, some improvements and decorations without departing from the principle of the utility model can also be considered as the protection scope of the utility model.

Claims

1. A cylindrical roller bearing with a disassembly groove, characterized in that, The bearing includes an outer ring (1) and an inner ring (2). The outer ring (1) is fitted onto the outside of the inner ring (2). A cage (3) is installed between the outer ring (1) and the inner ring (2). Several cylindrical rollers (4) are evenly distributed on the cage (3). Several straight grooves (11) are opened on one end face of the outer ring (1) in the width direction. A first disassembly groove (12) is opened on the outer wall of the outer ring (1). The first disassembly groove (12) is connected to the straight groove (11). A second disassembly groove (21) is opened on the outer wall of the inner ring (2). The first disassembly groove (12) and the second disassembly groove (21) are on the same side of the bearing.

2. The cylindrical roller bearing with a disassembly groove according to claim 1, characterized in that, The straight groove (11) extends through the thickness direction of the outer ring (1) of the bearing, and a plurality of the straight grooves (11) are evenly distributed, with no less than two straight grooves (11) being provided.

3. The cylindrical roller bearing with a disassembly groove according to claim 1, characterized in that, A limiting stop (13) is formed on the outer wall of the bearing outer ring (1). The limiting stop (13) protrudes from the outer wall of the bearing outer ring (1) and is located on the side of the first disassembly groove (12). The limiting stop (13) serves to limit the bearing installation depth.

4. A special disassembly tool for cylindrical roller bearings, applied to a cylindrical roller bearing with a disassembly groove as described in any one of claims 1-3, characterized in that, The assembly includes a main plate (5), a pull plate (7), and a pull rod (8). The main plate (5) has several bifurcated plates (6) evenly distributed around its edge. The number and width of the bifurcated plates (6) correspond to the straight groove (11) on the outer ring (1) of the bearing. The main plate (5) is flatly connected to the side of the outer ring (1) of the bearing through the bifurcated plates (6). The pull plate (7) is arc-shaped. A connecting strip (71) is connected to the inner side of the pull plate (7). The size of the connecting strip (71) matches the first disassembly groove (12). The pull plate (7) is connected to the first disassembly groove (12) through the connecting strip (71). The two ends of the pull plate (7) are fixedly connected to two adjacent bifurcated plates (6). The pull rod (8) is connected at a right angle to the center of the main plate (5).

5. A special disassembly tool for cylindrical roller bearings according to claim 4, characterized in that, The pull rod (8) is a threaded rod. A rod bracket (9) is fixedly installed on the outside of the bearing outer ring (1) in the removal direction. The pull rod (8) is threadedly installed on the rod bracket (9). The pull rod (8) is installed through the rod bracket (9). A rod receiving seat (51) is fixedly installed at the center of the main plate (5). One end of the pull rod (8) is rotatably connected to the rod receiving seat (51). The other end of the pull rod (8) is fixedly connected to an assist handle (81).

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