A split bearing self-positioning press-fitting device

Abstract

The utility model discloses a split type bearing self-positioning press-fitting device, comprising: a pressure head is fixedly connected with a flange; the flange is fixed at the upper end of the pressure head; a spring seat is arranged in the inner hole of the lower end surface of the pressure head; a spring is placed on the spring seat; the other end of the spring contacts the pressure head; a bearing positioning sleeve is arranged on the outer side of the pressure head; a limiting bolt passes through the bolt hole on the bearing positioning sleeve and the U-shaped limiting groove on the pressure head in sequence and is connected to the bolt hole on the spring seat; the lower end of the bearing positioning sleeve is connected to the bearing. The utility model realizes that the bearing will not be offset in the process of entering the inner hole of the workpiece, ensures the verticality of the inner hole of the workpiece and the outer ring of the bearing, effectively avoids damage to the bearing during the installation process, and thus ensures the installation quality.

Description

Technical Field

[0001] The utility model belongs to the field of bearing processing and relates to a split-type bearing self-positioning press-fitting device. Background Art

[0002] Bearings are an important component in contemporary mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. The accuracy of bearing assembly determines the function and life of the bearing. Improper assembly can easily cause certain damage to the bearing. In the machinery industry, bearing assembly mainly relies on manual hammering or press-fitting. Among them, the rollers of split bearings are exposed and the structure is compact. During the process of manual hammering or machine pressing, it is impossible to accurately position the outer ring of the bearing and the mounting hole of the workpiece at the same time. During the installation process, the magnitude of the bearing force is difficult to control and the distribution is uneven, which can easily cause damage to the ball and outer ring. The installation quality is difficult to guarantee, and the installation accuracy is also difficult to control, which affects the performance and life of the needle roller bearing. Utility Model Content

[0003] The utility model aims to solve the problem in the prior art that the outer ring of the bearing and the workpiece mounting hole cannot be accurately positioned simultaneously during manual hammering or machine pressing, and to provide a split bearing self-positioning press-fitting device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A split bearing self-positioning press-fitting device, comprising: a press shaft, a press head, a spring seat, a bearing positioning sleeve, a limit bolt, a spring and a flange;

[0006] The pressure head is fixedly connected with the flange; the flange is fixed at the upper end of the pressure head; the spring seat is arranged in the inner hole of the workpiece of the pressure head; a spring is placed on the spring seat; the other end of the spring is in contact with the pressure head; the bearing positioning sleeve is arranged on the outer side of the pressure head; a U-shaped limiting groove is arranged on the side of the pressure head; the limiting bolt passes through the bolt hole on the bearing positioning sleeve and the U-shaped limiting groove on the pressure head in sequence and is connected to the bolt hole on the spring seat; the lower end of the bearing positioning sleeve is connected to the bearing.

[0007] The further improvement of the utility model is:

[0008] Furthermore, an inner hole is arranged in the middle of the flange; a steel plate is arranged in the middle of the inner hole; bolt holes are arranged on the steel plate; the pressure head and the flange are fixedly connected by bolts passing through the bolt holes on the steel plate and the bolt holes on the pressure head.

[0009] Furthermore, the bearing positioning sleeve is provided with a positioning pile; the positioning pile is provided with a positioning hole; the positioning hole is provided with an elastic positioning bead; the elastic positioning bead clamps the bearing arranged in the middle of the bearing positioning sleeve to achieve the connection between the bearing positioning sleeve and the bearing.

[0010] Furthermore, there are a plurality of positioning piles.

[0011] Furthermore, the pressure head is a cylindrical part; the U-shaped limiting grooves are symmetrically arranged on the side wall of the pressure head.

[0012] Furthermore, a step limiting groove is arranged on the pressure head, and the positioning pile on the bearing positioning sleeve passes through the step limiting groove; the bearing positioning sleeve is placed in the step limiting groove.

[0013] Furthermore, there are a plurality of step limit grooves; and the limit bolts are arranged between adjacent step limit grooves.

[0014] Furthermore, the central axes of the pressing shaft, the pressing head, the spring seat, the bearing positioning sleeve, the spring and the flange coincide with each other.

[0015] Furthermore, the flange is fixed to the upper end of the pressure head by means of hexagon socket bolts.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model fixes the pressure head with the flange; the flange is fixed at the upper end of the pressure head; the spring seat is arranged in the inner hole of the workpiece of the pressure head; a spring is placed on the spring seat; the other end of the spring contacts the pressure head; the bearing positioning sleeve is arranged on the outer side of the pressure head; the limiting bolt passes through the bolt hole on the bearing positioning sleeve and the U-shaped limiting groove on the pressure head in sequence and is connected to the bolt hole on the spring seat; the lower end of the bearing positioning sleeve is connected to the bearing. The utility model realizes that the bearing will not be offset in the process of entering the inner hole of the workpiece, ensures the verticality of the inner hole of the workpiece and the outer ring of the bearing, effectively avoids damage to the bearing during the installation process, and thus ensures the installation quality.

[0018] Furthermore, the utility model adopts a split connection method, which is convenient for repair and replacement of various parts.

[0019] Furthermore, the utility model realizes external positioning of the bearing, ensures the precision and quality of press-fitting, and the bearing positioning sleeve automatically returns to its original position after press-fitting is completed, and the elastic positioning bead can effectively prevent the bearing from falling off, and automatically returns to its original state after press-fitting is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1It is a schematic diagram of the overall structure of the split bearing self-positioning press-fitting device of the utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the split bearing self-positioning press-fitting device of the utility model.

[0023] Among them, 1-pressure shaft; 2-pressure head; 3-spring seat; 4-bearing positioning sleeve; 5-limiting bolt; 6-elastic positioning bead; 7-spring; 8-hexagon socket bolt; 9-flange. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The utility model is further described in detail below with reference to the accompanying drawings:

[0031] See also Figure 1 and Figure 2 The utility model discloses a split type bearing self-positioning press-fitting device, comprising: a press shaft 1, a press head 2, a spring seat 3, a bearing positioning sleeve 4, a limit bolt 5, a spring 7 and a flange 9;

[0032] The pressure head 2 is fixedly connected to the flange 9; the flange 9 is fixed to the upper end of the pressure head 2; the spring seat 3 is arranged in the inner hole of the workpiece of the pressure head 2; a spring 7 is placed on the spring seat 3; the other end of the spring 7 is in contact with the pressure head 2; the bearing positioning sleeve 4 is sleeved on the outer side of the pressure head 2; a U-shaped limiting groove is arranged on the side of the pressure head 2; the limiting bolt 5 passes through the bolt hole on the bearing positioning sleeve 4 and the U-shaped limiting groove on the pressure head 2 in sequence and is connected to the bolt hole on the spring seat 3; the lower end of the bearing positioning sleeve 4 is connected to the bearing.

[0033] An inner hole is arranged in the middle of the flange 9; a steel plate is arranged in the middle of the inner hole; bolt holes are arranged on the steel plate; the pressure head 2 and the flange 9 are fixedly connected by bolts passing through the bolt holes on the steel plate and the bolt holes on the pressure head 2.

[0034] The flange 9 is fixed to the upper end of the pressure head 2 by means of hexagon socket bolts 8 .

[0035] The bearing positioning sleeve 4 is provided with positioning piles, the positioning piles are provided with positioning holes, the positioning holes are provided with elastic positioning beads 6, and the elastic positioning beads 6 clamp the bearing arranged in the middle of the bearing positioning sleeve 4 to achieve the connection between the bearing positioning sleeve 4 and the bearing. There are several positioning piles.

[0036] The pressure head 2 is a cylindrical part; the U-shaped limiting grooves are symmetrically arranged on the side wall of the pressure head 2. The pressure head 2 is provided with a step limiting groove, and the positioning pile on the bearing positioning sleeve 4 passes through the step limiting groove; the bearing positioning sleeve 4 is placed in the step limiting groove. There are several step limiting grooves; the limiting bolts 5 are arranged between adjacent step limiting grooves. The central axes of the pressure shaft 1, the pressure head 2, the spring seat 3, the bearing positioning sleeve 4, the spring 7 and the flange 9 coincide with each other.

[0037] The working process of the utility model is:

[0038] Start the press and press the bearing into the inner hole of the workpiece of the pressing head 2 through the pressing head 2. During the pressing process of the bearing, the spring seat 3 moves upward, driving the bearing positioning sleeve 4 to move and compressing the spring 7 to move upward. When the limit bolt 5 contacts and positions the upper end of the U-shaped limit groove; the bearing is pressed into place. During the lifting process of the pressing head 2, the bearing positioning sleeve 4 is reset under the action of the spring 7.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A split bearing self-positioning press-fitting device, characterized in that: include: A pressing shaft (1), a pressing head (2), a spring seat (3), a bearing locating sleeve (4), a limiting bolt (5), a spring (7) and a flange (9); The pressure head (2) is fixedly connected to the flange (9); the flange (9) is fixed to the upper end of the pressure head (2); the spring seat (3) is arranged in the inner hole of the workpiece of the pressure head (2); a spring (7) is placed on the spring seat (3); the other end of the spring (7) is in contact with the pressure head (2); the bearing positioning sleeve (4) is sleeved on the outer side of the pressure head (2); a U-shaped limiting groove is arranged on the side of the pressure head (2); the limiting bolt (5) passes through the bolt hole on the bearing positioning sleeve (4) and the U-shaped limiting groove on the pressure head (2) in sequence and is then connected to the bolt hole on the spring seat (3); the lower end of the bearing positioning sleeve (4) is connected to the bearing.

2. The split bearing self-positioning press-fitting device according to claim 1 is characterized in that: An inner hole is provided in the middle of the flange (9); a steel plate is provided in the middle of the inner hole; bolt holes are provided on the steel plate; the pressure head (2) and the flange (9) are fixedly connected by bolts passing through the bolt holes on the steel plate and the bolt holes on the pressure head (2).

3. The split bearing self-positioning press-fitting device according to claim 2 is characterized in that: The bearing positioning sleeve (4) is provided with a positioning pile; the positioning pile is provided with a positioning hole; the positioning hole is provided with an elastic positioning bead (6); the elastic positioning bead (6) clamps the bearing arranged in the middle of the bearing positioning sleeve (4) to achieve the connection between the bearing positioning sleeve (4) and the bearing.

4. The split bearing self-positioning press-fitting device according to claim 3 is characterized in that: There are several positioning piles.

5. The split bearing self-positioning press-fitting device according to claim 4 is characterized in that: The pressure head (2) is a cylindrical part; the U-shaped limiting grooves are symmetrically arranged on the side wall of the pressure head (2).

6. The split bearing self-positioning press-fitting device according to claim 5, characterized in that: The pressure head (2) is provided with a step limit groove, and the positioning pile on the bearing positioning sleeve (4) passes through the step limit groove; the bearing positioning sleeve (4) is placed in the step limit groove.

7. The split bearing self-positioning press-fitting device according to claim 6, characterized in that: There are a plurality of step limit grooves; and the limit bolts (5) are arranged between adjacent step limit grooves.

8. The split bearing self-positioning press-fitting device according to claim 7, characterized in that: The central axes of the pressing shaft (1), the pressing head (2), the spring seat (3), the bearing positioning sleeve (4), the spring (7) and the flange (9) coincide with each other.

9. The split bearing self-positioning press-fitting device according to claim 8, characterized in that: The flange (9) is fixed to the upper end of the pressure head (2) by means of a hexagon socket bolt (8).

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