Special bearing sleeve for motor shell of heading machine
By designing a bearing sleeve including a connecting ring, a jacket, a limiting groove, a limiting cylinder, a locking screw, a connecting rod, an extrusion block and an extrusion sleeve, the gap between the bearing sleeve and the bearing in the prior art is solved. The problems of large, low rotation accuracy and complex disassembly achieve high-precision rotation of the bearing and convenient disassembly and oil filling process.
Patent Information
- Application Number
- CN202421537379.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-07-02
AI Technical Summary
During the assembly and disassembly of existing boring machine motor housing bearing sleeves, the bearing sleeves are prone to gaps between the bearings and bearing sleeves, resulting in low rotational accuracy of the bearings and complex disassembly.
A bearing sleeve is designed including a connecting ring, outer sleeve, limit groove, limit cylinder, locking screw, connecting rod, extrusion block and extrusion sleeve. The bearing is tightened by the design of extrusion block and extrusion sleeve. Fitting and limit installation and removal through rotation of the locking screw.
It effectively reduces the gap between the bearing and the bearing sleeve, improves the rotation accuracy of the bearing, and simplifies the bearing disassembly and oil filling process.
Smart Images
Figure CN222526717U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing sleeves, in particular to a special bearing sleeve for a motor housing of a tunnel boring machine. 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. However, in practical applications, many bearings encounter various difficulties during assembly and disassembly, especially the assembly of bearings inside the housing is restricted by conditions. Therefore, bearing sleeves are often used to solve such problems.
[0003] During the use of the existing bearing sleeve of the motor housing of the tunnel boring machine, a large gap is easily left between the bearing sleeve and the bearing, and the accuracy of the bearing rotation cannot be guaranteed. Therefore, we have launched a new bearing sleeve dedicated to the motor housing of the tunnel boring machine. Utility Model Content
[0004] The main purpose of the utility model is to provide a bearing sleeve dedicated to a motor housing of a tunnel boring machine, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A bearing sleeve specially used for a motor housing of a tunneling machine comprises a connecting ring, wherein a plurality of mounting holes are provided on the outer side of the upper end of the connecting ring, an outer casing is fixedly connected to the middle part of the upper end of the connecting ring, a limiting groove is provided inside the outer casing, and four limiting cylinders are fixedly connected to the outer surface of the outer casing, and the four limiting cylinders are provided with through holes at one end away from the outer casing, and threaded holes are provided on the upper parts of the outer surfaces of the four limiting cylinders, and locking screws are threadedly connected to the four threaded holes. Four connecting rods are inserted and connected to the outer surface of the outer casing, and the four connecting rods are fixedly connected to connecting handles at one end away from the outer casing, and the four connecting rods are fixedly connected to connecting blocks at one end away from the connecting handles, and the four connecting blocks are fixedly connected to extrusion blocks at one end away from the connecting rods, and the four extrusion blocks are fixedly connected to the extrusion sleeves at one end away from the connecting blocks, and the outer surfaces of the four extrusion blocks are fixedly connected to two movable rods and two springs, and the ends of several movable rods away from the extrusion blocks are fixedly connected to the limiting blocks.
[0007] Preferably, the four connecting rods are respectively connected with the four through holes through insertion.
[0008] Preferably, the ends of the four locking screws are tightly fitted with the outer surfaces of the four connecting rods respectively.
[0009] Preferably, the four extrusion blocks are all located in the limiting grooves.
[0010] Preferably, the four extrusion blocks are distributed in a ring array.
[0011] Preferably, the plurality of springs are respectively located outside the plurality of movable rods, and ends of the plurality of springs away from the extrusion block are fixedly connected to the inner wall of the limiting groove.
[0012] Preferably, a plurality of the movable rods are interlaced and connected with the outer casing.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. By inserting the bearing into the outer sleeve, pressing the connecting rod through the connecting handle, the connecting rod moves toward the bearing through the connecting block with the extrusion block, so that the four extrusion blocks are close to each other, and the four extrusion sleeves are tightly fitted with the bearing, and then by rotating the four locking screws, the ends of the four locking screws are tightly fitted with the outer surfaces of the four connecting rods respectively, so that the four connecting rods are limited, so that the bearing can be limited and installed, and the four extrusion sleeves are tightly fitted with the bearing, which can reduce the gap between the bearing and the bearing sleeve and improve the rotation accuracy of the bearing;
[0015] 2. When the bearing needs to be disassembled and lubricated, the four locking screws are rotated to make the ends of the four locking screws away from the four connecting rods respectively. The four connecting rods are reset under the elastic force of the springs, so that the four extrusion blocks are reset, thereby making the four extrusion sleeves away from the bearings, making it convenient to disassemble and lubricate the bearings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of a bearing sleeve dedicated to a motor housing of a tunnel boring machine according to the utility model;
[0017] Figure 2 This is a top view of a bearing sleeve dedicated to a motor housing of a tunnel boring machine according to the utility model;
[0018] Figure 3 This is a schematic diagram of the overall structure of an extrusion block of a bearing sleeve dedicated to a motor housing of a tunnel boring machine according to the utility model;
[0019] Figure 4 The utility model is a schematic diagram of the overall structure of a limiting cylinder of a bearing sleeve specially used for a motor housing of a tunnel boring machine.
[0020] In the figure: 1. connecting ring; 2. mounting hole; 3. outer casing; 4. limiting groove; 5. limiting cylinder; 6. through hole; 7. threaded hole; 8. locking screw; 9. connecting rod; 10. connecting handle; 11. connecting block; 12. extrusion block; 13. extrusion sleeve; 14. movable rod; 15. spring; 16. limiting block. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 an indirect connection 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 invention can be understood according to specific circumstances.
[0024] See also Figure 1-4 , the utility model provides a technical solution:
[0025] A bearing sleeve for a motor housing of a tunnel boring machine comprises a connecting ring 1, a plurality of mounting holes 2 are provided on the outer side of the upper end of the connecting ring 1, an outer casing 3 is fixedly connected to the middle part of the upper end of the connecting ring 1, a limiting groove 4 is provided inside the outer casing 3, four limiting cylinders 5 are fixedly connected to the outer surface of the outer casing 3, through holes 6 are provided at the ends of the four limiting cylinders 5 away from the outer casing 3, threaded holes 7 are provided on the upper parts of the outer surfaces of the four limiting cylinders 5, locking screws 8 are threadedly connected in the four threaded holes 7, and four connecting rods are inserted and connected to the outer surface of the outer casing 3 9, the ends of the four connecting rods 9 away from the outer sleeve 3 are fixedly connected to the connecting handle 10, the ends of the four connecting rods 9 away from the connecting handle 10 are fixedly connected to the connecting block 11, the ends of the four connecting blocks 11 away from the connecting rod 9 are fixedly connected to the extrusion block 12, the ends of the four extrusion blocks 12 away from the connecting block 11 are fixedly connected to the extrusion sleeve 13, the outer surfaces of the four extrusion blocks 12 are fixedly connected to two movable rods 14 and two springs 15, and the ends of several movable rods 14 away from the extrusion block 12 are fixedly connected to the limiting block 16.
[0026] In this embodiment, the four connecting rods 9 are respectively connected with the four through holes 6, the ends of the four locking screws 8 are respectively tightly fitted with the outer surfaces of the four connecting rods 9, the four extrusion blocks 12 are all located in the limiting grooves 4, the four extrusion blocks 12 are distributed in a circular array, and the four extrusion sleeves 13 are tightly fitted with the bearings, which can reduce the gap between the bearings and the bearing sleeves and improve the rotation accuracy of the bearings.
[0027] In this embodiment, several springs 15 are respectively located on the outside of several movable rods 14, and the ends of several springs 15 away from the extrusion block 12 are fixedly connected to the inner wall of the limiting groove 4, and several movable rods 14 are inserted and connected with the outer sleeve 3. By rotating the four locking screws 8, the ends of the four locking screws 8 are respectively away from the four connecting rods 9. The four connecting rods 9 are reset under the elastic force of the springs 15, so that the four extrusion blocks 12 are reset, so that the four extrusion sleeves 13 are away from the bearings, which is convenient for disassembly and oiling of the bearings.
[0028] It should be noted that the utility model is a bearing sleeve specially used for the motor housing of a tunnel boring machine. During use, the bearing is inserted into the outer casing 3, the connecting rod 9 is pressed by the connecting handle 10, and the connecting rod 9 moves toward the bearing through the connecting block 11 with the extrusion block 12, so that the four extrusion blocks 12 are close to each other, and the four extrusion sleeves 13 are tightly fitted with the bearing, and then the four locking screws 8 are rotated to make the ends of the four locking screws 8 tightly fit with the outer surfaces of the four connecting rods 9 respectively, so that the four connecting rods 9 are limited, so that the bearing can be limited and installed, and the four extrusion sleeves 13 are tightly fitted with the bearing, which can reduce the gap between the bearing and the bearing sleeve and improve the rotation accuracy of the bearing. When the bearing needs to be disassembled and lubricated with oil, the four locking screws 8 are rotated to make the ends of the four locking screws 8 move away from the four connecting rods 9 respectively, and the four connecting rods 9 are reset under the elastic force of the spring 15, so that the four extrusion blocks 12 are reset, so that the four extrusion sleeves 13 are away from the bearing, which is convenient for disassembly and oiling of the bearing.
[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A bearing sleeve for a motor housing of a tunnel boring machine, comprising a connecting ring (1), characterized in that: The outer side of the upper end of the connecting ring (1) is provided with a plurality of mounting holes (2); the middle part of the upper end of the connecting ring (1) is fixedly connected with an outer casing (3); a limiting groove (4) is provided inside the outer casing (3); four limiting cylinders (5) are fixedly connected with the outer surface of the outer casing (3); the ends of the four limiting cylinders (5) away from the outer casing (3) are provided with through holes (6); the upper parts of the outer surfaces of the four limiting cylinders (5) are provided with threaded holes (7); the four threaded holes (7) are threadedly connected with locking screws (8); the outer surface of the outer casing (3) is connected with four connecting rods (9); the four connecting rods (9) are inserted and connected. 9) One end away from the outer casing (3) is fixedly connected to a connecting handle (10), one end of the four connecting rods (9) away from the connecting handle (10) is fixedly connected to a connecting block (11), one end of the four connecting blocks (11) away from the connecting rod (9) is fixedly connected to an extrusion block (12), one end of the four extrusion blocks (12) away from the connecting block (11) is fixedly connected to an extrusion sleeve (13), two movable rods (14) and two springs (15) are fixedly connected to the outer surfaces of the four extrusion blocks (12), and one end of a plurality of the movable rods (14) away from the extrusion block (12) is fixedly connected to a limiting block (16).
2. The bearing sleeve for the motor housing of a tunnel boring machine according to claim 1, characterized in that: The four connecting rods (9) are respectively inserted and connected with the four through holes (6).
3. The bearing sleeve for the motor housing of a tunnel boring machine according to claim 1, characterized in that: The ends of the four locking screws (8) are respectively tightly fitted with the outer surfaces of the four connecting rods (9).
4. The bearing sleeve for a motor housing of a tunnel boring machine according to claim 1, characterized in that: The four extrusion blocks (12) are all located in the limiting groove (4).
5. The bearing sleeve for the motor housing of a tunnel boring machine according to claim 1, characterized in that: The four extrusion blocks (12) are distributed in a ring array.
6. The bearing sleeve for the motor housing of a tunnel boring machine according to claim 1, characterized in that: The plurality of springs (15) are respectively located outside the plurality of movable rods (14), and the ends of the plurality of springs (15) away from the extrusion block (12) are fixedly connected to the inner wall of the limiting groove (4).
7. The bearing sleeve for a motor housing of a tunnel boring machine according to claim 1, characterized in that: The plurality of movable rods (14) are all connected to the outer casing (3) through insertion.