Telescopic clamping jaw type bearing extrusion device

Abstract

The utility model discloses a telescopic clamping jaw type bearing extrusion device which comprises a lower cover plate and an upper cover plate, a T-shaped clamping jaw and a U-shaped clamping jaw are installed in the lower cover plate, the two sides of the T-shaped clamping jaw are connected with the lower cover plate through first springs respectively, and the middle of the U-shaped clamping jaw is connected with the lower cover plate through a second spring; a through hole is formed in the middle of the upper cover plate, and an abutting block is installed in the through hole. Through the elastic effect of the first spring and the second spring, the T-shaped clamping jaw and the U-shaped clamping jaw are popped out, in order to prevent the T-shaped clamping jaw and the U-shaped clamping jaw from contracting when being stressed, the abutting block is arranged for blocking and preventing loosening, the T-shaped clamping jaw and the U-shaped clamping jaw are arranged in a matched mode, the contractibility is improved, the adaptability is wide, and the use is convenient. Labor intensity can be relieved, safety and rapidness are achieved, and the bearing outer ring is not damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing extrusion, in particular to a telescopic claw type bearing extrusion device. Background Art

[0002] Tapered roller bearings are separable bearings, and both the inner and outer rings of the bearings have tapered raceways. This type of bearing is divided into single-row, double-row and four-row tapered roller bearings according to the number of rows of rollers installed. Single-row tapered roller bearings can withstand radial loads and axial loads in a single direction. When the bearing is subjected to radial loads, an axial force component will be generated, so another bearing that can withstand the axial force in the opposite direction is needed to balance it.

[0003] Pairs of tapered roller bearings are usually used in heavy truck axle structures. They are installed back to back and pressed into the housing. The outer rings of the two tapered roller bearings are pressed into the housing holes in advance, and then the shaft with the inner ring of the bearing is installed. However, when it is necessary to repair and dismantle, it is very difficult to press out the shaft with the inner ring in the reverse operation and then remove the outer ring. The commonly used chiseling method will damage the outer ring of the bearing, and manual operation is labor-intensive and unsafe. Utility Model Content

[0004] The purpose of the utility model is to provide a telescopic claw type bearing extrusion device, which has the advantages of stable engagement, convenient extrusion operation by a press machine, reduced labor intensity, safety, speed and no damage to the outer ring of the bearing, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A telescopic claw type bearing extrusion device comprises a lower cover plate and an upper cover plate, wherein a T-shaped claw and a U-shaped claw are movably installed inside the lower cover plate, the two sides of the T-shaped claw are respectively connected to the lower cover plate through a first spring, and the middle part of the U-shaped claw is connected to the lower cover plate through a second spring;

[0007] A through hole is provided in the middle of the upper cover plate, and a stop block is movably installed inside the through hole.

[0008] Preferably, threaded holes are provided on both sides of the lower cover plate, and the upper cover plate is fixedly mounted on the lower cover plate by means of inner hole bolts.

[0009] Preferably, a first insertion portion is provided at one end of the T-shaped claw, a second insertion portion is provided at one end of the U-shaped claw, a first outlet and a second outlet are respectively provided at both ends of the lower cover plate, the T-shaped claw is movably arranged in the first outlet, and the U-shaped claw is movably arranged in the second outlet.

[0010] Preferably, a first movable groove is provided in the middle of the T-shaped claw, and a first stopper is fixedly provided on one side of the lower cover plate, and the first stopper is located inside the first movable groove.

[0011] Preferably, second movable grooves are provided on both sides of the U-shaped claw, and two second stoppers are provided on the other side of the lower cover plate, and the two second stoppers are respectively located inside the second movable grooves on both sides.

[0012] Preferably, the upper cover plate is provided with a clamping groove at the edge of the through hole, and an anti-slip plate is fixedly provided at the bottom edge of the stop block, and the anti-slip plate is clamped inside the clamping groove.

[0013] Preferably, the shape of the stop block is compatible with the T-shaped claw and the U-shaped claw.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model uses the elastic action of the first spring and the second spring to pop out the T-shaped claw and the U-shaped claw, so that the T-shaped claw and the U-shaped claw are guided to retract along the inner conical surface of the outer ring of the tapered roller bearing. After passing over the smallest hole of the outer ring, the claw extends out to clamp the end face of the shaft shoulder step, and the center of the device is pressed by an external transition pad to press the center of the device, so that the outer ring of the bearing can be pressed out in the reverse direction and stably. In order to prevent the T-shaped claw and the U-shaped claw from shrinking when being stressed, a stop block is provided to block them, that is, when the press machine is pressed downward, the stop block is clamped between the T-shaped claw and the U-shaped claw, so that the ends of the T-shaped claw and the U-shaped claw are blocked to prevent loosening. The T-shaped claw and the U-shaped claw are mutually adapted to improve the shrinkage, have a wide adaptability, can reduce labor intensity, and are safe, fast and do not damage the outer ring of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the inner structure of the lower cover of the utility model;

[0018] Figure 3 It is a schematic diagram of the explosion of the upper cover plate of the utility model.

[0019] In the figure: 1. lower cover; 2. upper cover; 3. first outlet; 4. second outlet; 5. T-shaped claw; 6. first spring; 7. U-shaped claw; 8. second spring; 9. through hole; 10. clamping groove; 11. first insertion part; 12. second insertion part; 13. first movable groove; 14. first stopper; 15. second movable groove; 16. second stopper; 17. threaded hole; 18. inner hole bolt; 19. stopper; 20. anti-drop plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 , the utility model provides a technical solution:

[0022] A telescopic claw type bearing extrusion device comprises a lower cover plate 1 and an upper cover plate 2, wherein a T-shaped claw 5 and a U-shaped claw 7 are movably installed inside the lower cover plate 1, the two sides of the T-shaped claw 5 are respectively connected to the lower cover plate 1 through a first spring 6, and the middle part of the U-shaped claw 7 is connected to the lower cover plate 1 through a second spring 8;

[0023] A through hole 9 is formed in the middle of the upper cover plate 2 , and a stopper 19 is movably installed inside the through hole 9 .

[0024] In order to connect the upper cover plate 2 and the lower cover plate 1 to maintain integrity, in this embodiment, preferably, threaded holes 17 are opened on both sides of the lower cover plate 1, and the upper cover plate 2 is fixedly mounted on the lower cover plate 1 by inner hole bolts 18.

[0025] In order to enable the T-shaped claw 5 and the U-shaped claw 7 to shoulder the step end surface and facilitate the engagement operation of the bearing, in the present embodiment, preferably, one end of the T-shaped claw 5 is provided with a first insertion portion 11, one end of the U-shaped claw 7 is provided with a second insertion portion 12, and the two ends of the lower cover plate 1 are respectively provided with a first outlet 3 and a second outlet 4, the T-shaped claw 5 is movably arranged in the first outlet 3, and the U-shaped claw 7 is movably arranged in the second outlet 4.

[0026] In order to prevent the T-shaped claw 5 from excessively moving when the first spring 6 pops out, in the present embodiment, preferably, a first movable groove 13 is opened in the middle of the T-shaped claw 5, and a first stopper 14 is fixedly provided on one side of the lower cover plate 1, and the first stopper 14 is located inside the first movable groove 13.

[0027] In order to prevent the U-shaped claw 7 from excessive movement when the second spring 8 pops out, in the present embodiment, preferably, second movable grooves 15 are provided on both sides of the U-shaped claw 7, and two second blocks 16 are fixedly provided on the other side of the lower cover plate 1, and the two second blocks 16 are respectively located inside the second movable grooves 15 on both sides.

[0028] In order to prevent the stop block 19 from falling, in the present embodiment, preferably, the upper cover plate 2 is provided with a snap-in groove 10 at the edge of the through hole 9 , and an anti-slip plate 20 is fixedly provided at the bottom edge of the stop block 19 , and the anti-slip plate 20 is snap-fitted inside the snap-in groove 10 .

[0029] In order to enable the stopper 19 to adaptively support the T-shaped claw 5 and the U-shaped claw 7 , in this embodiment, preferably, the shape of the stopper 19 is adapted to the T-shaped claw 5 and the U-shaped claw 7 .

[0030] Working principle: When in use, the device is pressed into the outer ring of the tapered roller bearing, and the T-shaped claw 5 and the U-shaped claw 7 are guided and retracted along the inner conical surface of the outer ring of the tapered roller bearing. After passing the smallest hole of the outer ring, the T-shaped claw 5 and the U-shaped claw 7 are extended, that is, the T-shaped claw 5 is popped out under the action of the first spring 6, and the U-shaped claw 7 is popped out under the action of the second spring 8. In order to prevent the T-shaped claw 5 and the U-shaped claw 7 from popping out excessively, a first movable groove 13 is opened in the middle of the T-shaped claw 5, and a first stopper 14 is provided in the first movable groove 13 to limit the movement of the T-shaped claw 5. Similarly, second movable grooves 15 are opened on both sides of the U-shaped claw 7, and two second movable grooves 15 are provided in the second movable groove 15. The second stopper 16 limits the movement of the U-shaped claw 7, and the first insertion part 11 and the second insertion part 12 clamp the end face of the shoulder step, and use the external transition pad to press the center of the device, and the stopper 19 is pressed down, so that the stopper 19 can be adapted to be located between the T-shaped claw 5 and the U-shaped claw 7, so as to support the T-shaped claw 5 and the U-shaped claw 7 and prevent the T-shaped claw 5 and the U-shaped claw 7 from shrinking into the lower cover plate 1 and the upper cover plate 2 during the force process, and then press through the press to smoothly press out the outer ring of the bearing in the reverse direction, and the T-shaped claw 5 and the U-shaped claw 7 are adapted to each other to improve the shrinkage, have a wide adaptability, can reduce labor intensity, and are safe, fast and do not damage the outer ring of the bearing.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic claw type bearing extrusion device, characterized in that: It comprises a lower cover plate (1) and an upper cover plate (2), wherein a T-shaped claw (5) and a U-shaped claw (7) are movably mounted inside the lower cover plate (1), the two sides of the T-shaped claw (5) are respectively connected to the lower cover plate (1) via a first spring (6), and the middle part of the U-shaped claw (7) is connected to the lower cover plate (1) via a second spring (8); A through hole (9) is provided in the middle of the upper cover plate (2), and a stop block (19) is movably installed inside the through hole (9).

2. A telescopic claw type bearing extrusion device according to claim 1, characterized in that: Threaded holes (17) are provided on both sides of the lower cover plate (1), and the upper cover plate (2) is fixedly mounted on the lower cover plate (1) by means of inner hole bolts (18).

3. The telescopic claw type bearing extrusion device according to claim 1, characterized in that: One end of the T-shaped claw (5) is provided with a first insertion portion (11), and one end of the U-shaped claw (7) is provided with a second insertion portion (12). Both ends of the lower cover plate (1) are provided with a first outlet (3) and a second outlet (4), respectively. The T-shaped claw (5) is movably arranged in the first outlet (3), and the U-shaped claw (7) is movably arranged in the second outlet (4).

4. The telescopic claw type bearing extrusion device according to claim 1, characterized in that: A first movable groove (13) is provided in the middle of the T-shaped claw (5), and a first stopper (14) is provided on one side of the lower cover plate (1), wherein the first stopper (14) is located inside the first movable groove (13).

5. The telescopic claw type bearing extrusion device according to claim 1, characterized in that: Second movable grooves (15) are provided on both sides of the U-shaped claw (7), and two second stoppers (16) are fixedly provided on the other side of the lower cover plate (1), the two second stoppers (16) being respectively located inside the second movable grooves (15) on both sides.

6. The telescopic claw type bearing extrusion device according to claim 1, characterized in that: The upper cover plate (2) is provided with a clamping groove (10) at the edge of the through hole (9), and an anti-slip plate (20) is fixedly provided at the bottom edge of the stop block (19), and the anti-slip plate (20) is clamped inside the clamping groove (10).

7. The telescopic claw type bearing extrusion device according to claim 1, characterized in that: The shape of the stop block (19) is compatible with the T-shaped claw (5) and the U-shaped claw (7).

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