Oil seal press-fitting structure for crossed roller bearing

Abstract

The utility model discloses an oil seal press-fitting structure for a crossed roller bearing, and relates to the technical field of bearing production, the oil seal press-fitting structure comprises a device main body, a lifting block, a base, a bearing body and a sliding rod, a support is installed in the device main body through bolts, an air cylinder is installed at one end of the top of the support, and the lifting block is sleeved outside the telescopic end of the bottom of the air cylinder; in the using process of the device, the lifting block moves downwards under the action of the air cylinder, and the pressing block is pushed to move downwards so as to press an oil seal on the surface of a bearing body; in the press-fitting process, an operator can place a new bearing body and a new oil seal on the top of the other end of the sliding seat, so that after the press-fitting of the previous oil seal is completed, the sliding seat is driven by the motor to move back and forth, and the oil seal at the other end is directly press-fitted; by means of the design, the press-fitting time is remarkably saved, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing manufacturing technology, specifically to an oil seal press-fit structure for crossed roller bearings. Background Technology

[0002] Crossed roller bearings are a common type of bearing. During assembly, the oil seal needs to be placed in the corresponding groove on the bearing surface, and then pressed into the bearing through a press-fitting structure. A search revealed that Chinese patent publication number CN218110645U discloses a skeleton oil seal press-fitting device for crossed roller bearings. Although this skeleton oil seal press-fitting device has the advantages of simple structure and convenient use, and is suitable for small batch assembly, the operator needs to wait until the current oil seal is pressed into place before the next bearing and oil seal can be placed, which reduces work efficiency and wastes a lot of time. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an oil seal press-fitting structure for crossed roller bearings, which solves the problem mentioned in the background art that in the existing device, the operator needs to wait on the side until the current oil seal is press-fitted before the next bearing and oil seal can be placed, thus reducing work efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an oil seal press-fitting structure for crossed roller bearings, comprising a main body, a lifting block, a base, a bearing body, and a sliding rod. A bracket is bolted inside the main body. A cylinder is mounted on one top end of the bracket. A lifting block is fitted onto the outer side of the bottom telescopic end of the cylinder. A base is positioned below the lifting block. A pressure block is located inside the bottom end of the base, used to press the oil seal. The bottom diameter of the pressure block matches the diameter of the oil seal. A drive motor is mounted on the top of the other end of the main body. The drive motor is mounted on the outer side of one end of a sliding groove. The bottom of the sliding groove is screwed to the top of the main body. A second threaded rod is fitted onto the outer side of the output end of the drive motor. The second threaded rod is threadedly connected to one end of a connecting plate. The other end of the connecting plate is welded to a sliding seat. The bottom of the sliding seat slides in contact with the surface of the main body. Bearing fixing positions are provided at both ends of the top of the sliding seat. The bearing body is placed at both ends of the top of the sliding seat. A control button is mounted on the front end of the main body for controlling the overall operation of the device.

[0005] Preferably, a spring is provided between the bottom of the lifting block and the base. The spring is fitted outside the slide rod. One end of the bottom of the slide rod is welded to the top of the base. The outer wall of the slide rod slides in contact with the inside of the lifting block. The springs are distributed in a ring with equal spacing. The springs elastically push the pressure block at the bottom of the base to move downward, thereby enabling the pressure block to apply elastic pressure to the oil seal. The rigid contact between the surface pressure block and the oil seal causes the oil seal to be under excessive pressure, resulting in damage.

[0006] Preferably, the base has a circular slot at the bottom, and the inner wall of the circular slot at the bottom of the base slides in contact with the outer wall surface of the pressure block, so that the pressure block can be quickly inserted into the bottom of the base for fixation.

[0007] Preferably, the base has two arc-shaped slots on one side, and a vertical strip slot is provided between the two arc-shaped slots, so that the inner wall of the base can be tightened under the action of the knob and the first threaded rod to clamp the outer wall of the pressure block.

[0008] Preferably, the inner wall of the base is welded to one end of the first threaded rod, the other end of the first threaded rod passes through the inner wall of the base, and the other end of the first threaded rod is threadedly connected to the knob, which is located on the outside of the base.

[0009] This utility model provides an oil seal press-fit structure for crossed roller bearings. It has the following advantages:

[0010] (1) The oil seal press-fitting structure for crossed roller bearings, in use, by placing the bearing body and oil seal at the top of one end of the sliding seat, the driving force of the drive motor causes the first threaded rod to move the connecting plate, thereby pushing the sliding seat to move, so that the bearing body and oil seal at the top of the sliding seat are moved below the pressure block; then, the lifting block moves downward under the action of the cylinder, pushing the pressure block to press the oil seal on the surface of the bearing body; during the press-fitting process, the operator can place a new bearing body and oil seal at the top of the other end of the sliding seat, so that after the previous oil seal is pressed-fitted, the sliding seat can be moved back and forth by the motor to directly press the oil seal at the other end; this design significantly saves press-fitting time and improves work efficiency.

[0011] (2) The oil seal press-fitting structure for crossed roller bearings can push the pressure block at the bottom of the base downward by the spring during the downward movement of the lifting block, so that the pressure block can apply elastic pressure to the oil seal. The surface pressure block and the oil seal are in rigid contact, which causes the oil seal to be damaged due to excessive pressure. In addition, by loosening the knob, the inside of the base can be loosened, so that the pressure block can be loosened and the pressure block can be replaced, thus making it suitable for oil seals of different diameters.

[0012] This solves the problem that in existing devices, operators have to wait until the current oil seal is installed before the next bearing and oil seal can be placed, which reduces work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a side view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the support structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the base structure of this utility model.

[0018] In the diagram, 1. Main body of the device; 2. Support; 3. Cylinder; 4. Lifting block; 5. Base; 6. Pressure block; 7. Slide rod; 8. Knob; 9. First threaded rod; 10. Spring; 11. Drive motor; 12. Second threaded rod; 13. Slide groove; 14. Connecting plate; 15. Control button; 16. Sliding seat; 17. Bearing body. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1:

[0020] Please see Figure 1-5This utility model provides a technical solution: an oil seal press-fitting structure for crossed roller bearings, including a device body 1, a lifting block 4, a base 5, and a sliding rod 7. A bracket 2 is bolted inside the device body 1. A cylinder 3 is mounted on one top end of the bracket 2. The lifting block 4 is fitted onto the outer side of the bottom telescopic end of the cylinder 3. A base 5 is located below the lifting block 4. A pressure block 6 is located inside the bottom end of the base 5. The pressure block 6 is used to press the oil seal, and the bottom diameter of the pressure block 6 matches the diameter of the oil seal. A drive motor 11 is mounted on the top of the other end of the device body 1. The drive motor 11 is mounted on the outer side of one end of a slide groove 13. The bottom of the slide groove 13 is screwed to the top of the device body 1. A second threaded rod 12 is fitted onto the outer side of the output end of the drive motor 11. The second threaded rod 12 is threadedly connected to one end of a connecting plate 14. The other end of the connecting plate 14 is welded to a sliding seat 16. The bottom of the sliding seat 16 slides in contact with the surface of the device body 1. Bearing fixing positions are provided at both ends of the top of the sliding seat 16. The bearing body 17 is placed... The control buttons 15 are installed at the front end of the main body 1 of the device, which are located at both ends of the top of the sliding seat 16. The control buttons 15 are used to control the operation of the entire device. When the device is in use, the bearing body 17 and the oil seal are placed on the top of one end of the sliding seat 16. Then, driven by the drive motor 11, the first threaded rod 9 can drive the connecting plate 14 to move, which in turn drives the sliding seat 16 to move. The bearing body 17 and the oil seal on the top of the sliding seat 16 can move to the bottom of the pressure block 6. Then, under the action of the cylinder 3, the lifting block 4 is pushed to move downward, which allows the pressure block 6 to move downward, thereby pressing the oil seal on the surface of the bearing body 17. During the pressing process, the operator can place the bearing body 17 and the oil seal on the top of the other end of the sliding seat 16. After the previous oil seal is pressed, the motor drives the sliding seat 16 to move back and forth, which can directly press the oil seal on the other end of the sliding seat 16, thus greatly saving pressing time and improving work efficiency. Example 2:

[0021] This utility model embodiment provides a technical solution: an oil seal press-fit structure for crossed roller bearings, wherein a spring 10 is provided between the bottom of the lifting block 4 and the base 5, the spring 10 is fitted outside the slide rod 7, one end of the bottom of the slide rod 7 is welded to the top of the base 5, the outer wall of the slide rod 7 slides in contact with the inside of the lifting block 4, the springs 10 are distributed in a ring at equal intervals, a circular groove is provided at the bottom of the base 5, the inner wall of the circular groove at the bottom of the base 5 slides in contact with the outer wall surface of the pressure block 6, two arc-shaped grooves are provided on one side of the base 5, and a vertical strip groove is provided between the two arc-shaped grooves, the inner wall of the base 5 and the first screw One end of the threaded rod 9 is welded, and the other end of the first threaded rod 9 passes through the inner wall of the base 5. The other end of the first threaded rod 9 is threadedly connected to the knob 8. The knob 8 is located on the outside of the base 5. When the lifting block 4 moves downward, it can elastically push the pressure block 6 at the bottom of the base 5 downward through the spring 10, so that the pressure block 6 can elastically apply pressure to the oil seal. The surface pressure block 6 is in rigid contact with the oil seal, which causes the oil seal to be under excessive pressure and thus damaged. In addition, by loosening the knob 8, the inside of the base 5 can be loosened, so that the pressure block 6 can be loosened, so that the pressure block 6 can be replaced, thus making it suitable for oil seals of different diameters.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An oil seal press-fit structure for crossed roller bearings, characterized in that: The device includes a main body (1), a lifting block (4), a base (5), a bearing body (17), and a slide rod (7). A bracket (2) is installed inside the main body (1) by bolts. A cylinder (3) is installed at one end of the top of the bracket (2). The lifting block (4) is fitted on the outside of the telescopic end of the bottom of the cylinder (3). A base (5) is set below the lifting block (4). A pressure block (6) is set inside the bottom end of the base (5). The pressure block (6) is used to press the oil seal, and the bottom diameter of the pressure block (6) matches the diameter of the oil seal. A drive motor (11) is installed at the top of the other end of the main body (1). The drive motor (11) is installed at one end of the slide groove (13). Externally, the bottom of the slide groove (13) is installed on the top of the device body (1) by screws. The output end of the drive motor (11) is fitted with a second threaded rod (12). The second threaded rod (12) is threaded to one end of the connecting plate (14). The other end of the connecting plate (14) is welded to the sliding seat (16). The bottom of the sliding seat (16) slides in contact with the surface of the device body (1). The top two ends of the sliding seat (16) are provided with bearing fixing positions. The bearing body (17) is placed at the top two ends of the sliding seat (16). The front end of the device body (1) is equipped with a control button (15). The control button (15) is used for overall equipment control.

2. The oil seal press-fit structure for crossed roller bearings according to claim 1, characterized in that: A spring (10) is provided between the bottom of the lifting block (4) and the base (5). The spring (10) is fitted on the outside of the slide rod (7). One end of the bottom of the slide rod (7) is welded to the top of the base (5). The outer wall of the slide rod (7) slides in contact with the inside of the lifting block (4). The springs (10) are distributed in a ring with equal spacing.

3. The oil seal press-fit structure for crossed roller bearings according to claim 1, characterized in that: The base (5) has a circular slot at the bottom, and the inner wall of the circular slot at the bottom of the base (5) slides in contact with the outer wall surface of the pressure block (6).

4. The oil seal press-fit structure for crossed roller bearings according to claim 1, characterized in that: The base (5) has two arc-shaped slots on one side, and a vertical strip slot is provided between the two arc-shaped slots.

5. The oil seal press-fit structure for crossed roller bearings according to claim 1, characterized in that: The inner wall of the base (5) is welded to one end of the first threaded rod (9), the other end of the first threaded rod (9) passes through the inner wall of the base (5), and the other end of the first threaded rod (9) is threadedly connected to the knob (8), the knob (8) being located on the outside of the base (5).

Images