Bearing mounting and fixing structure suitable for narrow space

Abstract

The utility model discloses a bearing mounting and fixing structure suitable for a narrow space. The bearing mounting and fixing structure comprises a box body; the rotating shaft is arranged in the box body; the bearing is arranged on the periphery of the rotating shaft in a sleeving mode, and one side of the bearing is attached to a shaft shoulder of the rotating shaft; the bearing sleeve is arranged on the periphery of the bearing in a sleeving mode, a mounting groove is formed in the box body, and one end of the bearing sleeve is arranged in the mounting groove and abuts against the bottom wall of the mounting groove; the pressing plate is arranged on the other side of the bearing, and one end of the pressing plate is connected with the outer wall of one side of the box body; and the mounting pad is arranged between the pressing plate and the box body. Through the application of the bearing mounting and fixing structure, the bearing mounting and fixing structure suitable for the narrow space is provided, the axial fixation of the bearing outer ring is divided into two directions through the arrangement of the bearing sleeve, the axial space is favorably saved, and the space utilization rate is improved; and by arranging the kidney-shaped groove and the mounting pad, the size error in the machining and assembling process can be effectively compensated, and the requirement for machining precision is lowered.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a bearing mounting and fixing structure suitable for confined spaces. Background Technology

[0002] In gearbox design, due to limited internal space, bearing installation is often affected by surrounding components such as seals, sensors, and connecting discs. Traditional bearing installation methods require sufficient axial space around the bearing outer ring for fixation, inevitably leading to structural redundancy and making it impossible to meet installation requirements in compact spaces. In existing technologies, if other components are located beneath the bearing, the lack of effective fixing points makes stable bearing installation difficult using traditional methods, easily causing bearing loosening and displacement, ultimately affecting the gearbox's operational accuracy and lifespan. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a bearing mounting and fixing structure suitable for confined spaces, comprising:

[0004] Box;

[0005] A rotating shaft is disposed inside the housing;

[0006] A bearing, wherein the bearing is sleeved around the outer periphery of the rotating shaft, and one side of the bearing is in contact with the shoulder of the rotating shaft;

[0007] A bearing sleeve is fitted around the bearing. The housing has an internal mounting groove, and one end of the bearing sleeve is positioned within the mounting groove and abuts against the bottom wall of the mounting groove.

[0008] A pressure plate is disposed on the other side of the bearing, and one end of the pressure plate is connected to one outer wall of the housing.

[0009] Mounting pad, wherein the mounting pad is provided between the pressure plate and the housing.

[0010] In another preferred embodiment, it further includes: a retaining ring disposed on the other side of the bearing, wherein an annular groove is formed on the outer wall of the rotating shaft, and the retaining ring is installed in the annular groove.

[0011] In another preferred embodiment, the inner wall of the other end of the bearing sleeve has a positioning boss, and one side of the bearing abuts against the positioning boss.

[0012] In another preferred embodiment, the pressure plate has a waist-shaped hole, and the bearing sleeve has a plurality of first threaded holes evenly distributed along the circumferential direction, wherein one of the first threaded holes mates with the waist-shaped hole.

[0013] In another preferred embodiment, it further includes: a fastening bolt, one end of which passes through the oblong hole and is connected to the first threaded hole.

[0014] In another preferred embodiment, the pressure plate is provided with a first fixing hole, and the mounting pad is provided with a second fixing hole that is directly opposite to the first fixing hole.

[0015] In another preferred embodiment, a second threaded hole is provided on the outer wall of the housing, which is directly opposite to the second fixing hole.

[0016] In another preferred embodiment, it further includes: a fastening screw, one end of which passes sequentially through the first fixing hole, the second fixing hole and is connected to the second threaded hole.

[0017] In another preferred embodiment, one end of the pressure plate has a groove, and the mounting pad is disposed in the groove.

[0018] The present invention, by adopting the above-mentioned technical solution, has the following positive effects compared with the prior art: By applying the present invention, a bearing installation and fixing structure suitable for confined spaces is proposed. By setting a bearing sleeve to decompose the axial fixing of the bearing outer ring into two directions, it helps to save axial space and improve space utilization. By setting a waist-shaped groove and mounting pad, it can effectively compensate for dimensional errors during processing and assembly, ensure uniform distribution of clamping force, and reduce the requirements for processing accuracy. In addition, this structure is easy to disassemble and assemble; the bearing sleeve can be disassembled simply by loosening the fastening bolts and screws, thereby reducing maintenance time and costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a bearing mounting and fixing structure suitable for confined spaces according to the present invention;

[0020] Figure 2 This is a side view of a bearing mounting and fixing structure suitable for confined spaces according to the present invention.

[0021] In the attached image:

[0022] 1. Housing; 2. Rotating shaft; 3. Bearing; 4. Bearing sleeve; 5. Pressure plate; 6. Mounting pad; 7. Retaining ring; 8. Fastening bolt; 9. Fastening screw; 41. Positioning boss; 42. Boss; 51. Waist-shaped hole; 52. Groove. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0026] like Figure 1-2 As shown, a preferred embodiment of a bearing mounting and fixing structure suitable for confined spaces is illustrated, comprising:

[0027] Box 1;

[0028] Rotating shaft 2 is located inside housing 1;

[0029] Bearing 3 and bearing sleeve 4 are located on the periphery of rotating shaft 2. One side of bearing 3 is in contact with the shoulder of rotating shaft 2. Bearing 3 is used to provide axial limit for rotating shaft 2 to prevent rotating shaft 2 from moving in the direction from one side of bearing 3 to the other side.

[0030] Bearing sleeve 4 is fitted around the bearing 3. The housing 1 has an installation groove. One end of the bearing sleeve 4 is placed in the installation groove and abuts against the bottom wall of the installation groove.

[0031] Pressure plate 5 is located on the other side of bearing 3, and one end of pressure plate 5 is connected to the outer wall of one side of housing 1.

[0032] Mounting pad 6 is provided between the pressure plate 5 and the housing 1.

[0033] Furthermore, in a preferred embodiment, one end of the outer wall of the bearing sleeve 4 has a boss 42, which is disposed within the mounting groove and abuts against the bottom wall of the mounting groove. Furthermore, the mounting groove can provide a radial limit for the boss 42, thereby preventing radial movement of the boss 42.

[0034] Furthermore, as a preferred embodiment, it further includes a retaining ring 7, which is disposed on the other side of the bearing 3. An annular groove is formed on the outer wall of the rotating shaft 2, and the retaining ring 7 is installed in the annular groove. Further, the retaining ring 7 can provide an axial limit for the rotating shaft 2 to prevent it from moving in the direction from the other side of the bearing 3 to one side. By providing the retaining ring 7 and the bearing 3, axial movement of the rotating shaft 2 can be prevented.

[0035] Furthermore, in a preferred embodiment, the inner wall of the other end of the bearing sleeve 4 has a positioning boss 41, and one side of the bearing 3 abuts against the positioning boss 41. Further, the axial fixation of the outer ring of the bearing 3 can be decomposed into two directions by the bearing sleeve 4. One direction is the direction of one side of the bearing 3, where one side of the bearing 3 abuts against the positioning boss 41, which provides an axial limit for the bearing 3. The other direction is the direction of the other side of the bearing 3, where the other side of the bearing 3 abuts against the pressure plate 5, which also provides an axial limit for the bearing 3. Under the combined action of the positioning boss 41 and the pressure plate 5, the bearing 3 is axially fixed.

[0036] Furthermore, as a preferred embodiment, the pressure plate 5 is provided with a waist-shaped hole 51, and the bearing sleeve 4 is provided with a plurality of first threaded holes evenly distributed along the circumferential direction, wherein one of the first threaded holes is matched with the waist-shaped hole 51.

[0037] Furthermore, as a preferred embodiment, it also includes a fastening bolt 8, one end of which passes through the oblong hole 51 and connects to the first threaded hole. Furthermore, the fastening bolt 8 can be flexibly adjusted within the oblong hole 51, and radial fine-tuning is still allowed when tightening the bolt 8, thereby effectively compensating for dimensional errors during machining and assembly, ensuring uniform distribution of clamping force, and reducing the requirements for machining accuracy.

[0038] Furthermore, as a preferred embodiment, the pressure plate 5 is provided with a first fixing hole, and the mounting pad 6 is provided with a second fixing hole that is directly opposite to the first fixing hole.

[0039] Furthermore, as a preferred embodiment, a second threaded hole is provided on the outer wall of the housing 1, which is directly opposite to the second fixing hole.

[0040] Furthermore, as a preferred embodiment, it also includes: a fastening screw 9, one end of which passes through the first fixing hole and the second fixing hole in sequence and is connected to the second threaded hole.

[0041] Furthermore, as a preferred embodiment, a groove 52 is provided at one end of the pressure plate 5, and the mounting pad 6 is disposed in the groove 52.

[0042] The working principle of this utility model is as follows: First, the bearing 3 can be sleeved on the outer periphery of the rotating shaft 2. Then, the bearing sleeve 4 is sleeved on the outer periphery of the bearing 3, and the boss 42 is set in the mounting groove. According to the size of the groove 52, a suitable mounting pad 6 is selected. One end of the fastening screw 9 is passed through the first fixing hole and the second fixing hole in sequence and connected to the second threaded hole. Then, one end of the fastening bolt 8 is passed through the waist-shaped hole 51 in sequence and connected to the first threaded hole, so that the pressure plate 5 can be fixed relative to the housing 1, and the pressure plate 5 can provide axial limit for the bearing 3. Under the action of the pressure plate 5 and the bearing sleeve 4, the bearing 3 can be axially fixed.

[0043] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bearing mounting fixing structure suitable for a narrow space, characterized by, include: Box; A rotating shaft is disposed inside the housing; A bearing, wherein the bearing is sleeved around the outer periphery of the rotating shaft, and one side of the bearing is in contact with the shoulder of the rotating shaft; A bearing sleeve is fitted around the bearing. The housing has an internal mounting groove, and one end of the bearing sleeve is positioned within the mounting groove and abuts against the bottom wall of the mounting groove. A pressure plate is disposed on the other side of the bearing, and one end of the pressure plate is connected to one outer wall of the housing. Mounting pad, wherein the mounting pad is provided between the pressure plate and the housing.

2. The bearing mounting fixture for use in a tight space according to claim 1, characterized by Also includes: A retaining ring is provided on the other side of the bearing. An annular groove is provided on the outer wall of the rotating shaft, and the retaining ring is installed in the annular groove.

3. The bearing mounting fixture for use in tight spaces according to claim 1, wherein The other end of the bearing sleeve has a positioning boss on its inner wall, and one side of the bearing abuts against the positioning boss.

4. The bearing mounting and fixing structure suitable for confined spaces according to claim 1, characterized in that, The pressure plate has a waist-shaped hole, and the bearing sleeve has a plurality of first threaded holes evenly distributed along the circumference, wherein one of the first threaded holes mates with the waist-shaped hole.

5. The bearing mounting and fixing structure suitable for confined spaces according to claim 4, characterized in that, Also includes: A fastening bolt, one end of which passes through the oblong hole and connects to the first threaded hole.

6. The bearing mounting and fixing structure suitable for confined spaces according to claim 1, characterized in that, The pressure plate is provided with a first fixing hole, and the mounting pad is provided with a second fixing hole that is directly opposite to the first fixing hole.

7. The bearing mounting and fixing structure suitable for confined spaces according to claim 6, characterized in that, The outer wall of the box is provided with a second threaded hole that is directly opposite to the second fixing hole.

8. The bearing mounting and fixing structure suitable for confined spaces according to claim 7, characterized in that, It also includes: a fastening screw, one end of which passes through the first fixing hole and the second fixing hole in sequence and is connected to the second threaded hole.

9. The bearing mounting and fixing structure suitable for confined spaces according to claim 1, characterized in that, One end of the pressure plate has a groove, and the mounting pad is placed in the groove.

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