Outer ring pulling device for tapered roller bearing

Abstract

The utility model discloses a tapered roller bearing outer ring puller which comprises a base, the upper end of the base is fixedly connected with an electric hydraulic cylinder, the upper end of the electric hydraulic cylinder is fixedly connected with a top block, the side wall of the electric hydraulic cylinder is fixedly connected with three mounting lugs, the outer sides of the three mounting lugs are all rotationally connected with connecting rods, and the connecting rods are fixedly connected with the top block. Three connecting rods are fixedly connected to the upper end of the base, clamping jaws are rotatably connected to the interiors of the three connecting rods, a mounting rod is fixedly connected to the upper end of the base, a mounting groove is formed in one side of the mounting rod, a transmission motor is fixedly connected to the interior of the mounting groove, and a threaded rod is fixedly connected to an output shaft of the transmission motor. A fixing plate is driven to descend through a mounting rod, a mounting groove, a transmission motor, a threaded rod and a threaded block, the fixing plate is matched with an ejector block, a shaft is fixed, a clamping jaw is clamped on the bearing, an electric hydraulic cylinder is started, the ejector block ascends, the bearing is disassembled, the shaft rod does not need to be manually held by hand, the labor intensity is low, and the working efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of puller technology, specifically a puller for the outer ring of a tapered roller bearing. Background Technology

[0002] A puller, also known as a three-jaw puller, is a commonly used tool in mechanical maintenance. It is mainly used to remove damaged bearings axially from shafts and can be used as an internal or external puller.

[0003] When using a puller, some bearings and shafts are separate and not fixed to the mechanical equipment. When using them, the shafts need to be manually held to perform the operation, which increases the labor intensity. Utility Model Content

[0004] The purpose of this utility model is to provide a tapered roller bearing outer ring puller, which can drive the fixing plate to descend through the mounting rod, mounting groove, transmission motor, threaded rod, and threaded block, cooperate with the top block to fix the shaft, and by locking the claws on the bearing, the electric hydraulic cylinder is activated to raise the top block to disassemble the bearing. There is no need for manual handling of the shaft rod, the labor intensity is low and the work efficiency is high.

[0005] To achieve the above objectives, a tapered roller bearing outer ring puller is provided, comprising a base, an electric hydraulic cylinder fixedly connected to the upper end of the base, a top block fixedly connected to the upper end of the electric hydraulic cylinder, three mounting ears fixedly connected to the side wall of the electric hydraulic cylinder, a connecting rod rotatably connected to the outer side of each of the three mounting ears, and a pawl rotatably connected to the inner side of each of the three connecting rods.

[0006] A mounting rod is fixedly connected to the upper end of the base. A mounting groove is provided on one side of the mounting rod. A drive motor is fixedly connected inside the mounting groove. A threaded rod is fixedly connected to the output shaft of the drive motor. A threaded block is threadedly connected to the outer surface of the threaded rod. A fixing plate is fixedly connected to one side of the threaded block.

[0007] According to the aforementioned tapered roller bearing outer ring puller, the top block is a "conical block".

[0008] According to the tapered roller bearing outer ring puller, the lower end of the threaded rod is fixedly connected to a bearing, and the bearing is fixed to the bottom wall of the mounting groove.

[0009] According to the tapered roller bearing outer ring puller, one side of the threaded block is slidably connected to the side wall of the mounting groove.

[0010] According to the tapered roller bearing outer ring puller, the fixing plate is an "L-shaped plate".

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This tapered roller bearing outer ring puller, by setting up an installation rod, installation groove, transmission motor, threaded rod, and threaded block, drives the fixed plate to descend, cooperate with the top block to fix the shaft. By locking the claws on the bearing, the electric hydraulic cylinder is activated to raise the top block and disassemble the bearing. There is no need for manual handling of the shaft rod, resulting in low labor intensity and high work efficiency.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a partial structural schematic diagram of a tapered roller bearing outer ring puller according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a tapered roller bearing outer ring puller according to this utility model;

[0017] Figure 3 This is a cross-sectional view of the mounting rod of the outer ring puller of a tapered roller bearing according to this utility model.

[0018] In the diagram: 1. Base; 2. Electric hydraulic cylinder; 3. Top block; 4. Mounting ear; 5. Connecting rod; 6. Claw; 7. Mounting rod; 8. Mounting groove; 9. Drive motor; 10. Threaded rod; 11. Threaded block; 12. Bearing; 13. Fixing plate. 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 utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 This utility model provides a technical solution: a tapered roller bearing outer ring puller, including a base 1, an electric hydraulic cylinder 2 fixedly connected to the upper end of the base 1, a top block 3 fixedly connected to the upper end of the electric hydraulic cylinder 2, three mounting ears 4 fixedly connected to the side wall of the electric hydraulic cylinder 2, a connecting rod 5 rotatably connected to the outer side of each of the three mounting ears 4, and a pawl 6 rotatably connected to the inner side of each of the three connecting rods 5.

[0021] A mounting rod 7 is fixedly connected to the upper end of the base 1. A mounting groove 8 is provided on one side of the mounting rod 7. A drive motor 9 is fixedly connected inside the mounting groove 8. A threaded rod 10 is fixedly connected to the output shaft of the drive motor 9. A threaded block 11 is threadedly connected to the outer surface of the threaded rod 10. A fixing plate 13 is fixedly connected to one side of the threaded block 11. By setting up the mounting rod 7, mounting groove 8, drive motor 9, threaded rod 10, and threaded block 11, the fixing plate 13 is driven to descend and cooperate with the top block 3 to fix the shaft. By locking the pawl 6 onto the bearing, the electric hydraulic cylinder 2 is activated to raise the top block 3 and disassemble the bearing. There is no need for manual handling of the shaft, resulting in low labor intensity and high work efficiency.

[0022] The top block 3 is a "conical block". The lower end of the threaded rod 10 is fixedly connected to a bearing 12. By setting the bearing 12, the rotation of the threaded rod 10 is facilitated. The bearing 12 is fixed to the bottom wall of the mounting groove 8. One side of the threaded block 11 is slidably connected to the side wall of the mounting groove 8. By setting the threaded block 11 which is slidably connected to the side wall of the mounting groove 8, the threaded block 11 is prevented from rotating with the rotation of the threaded rod 10. The fixing plate 13 is an "L-shaped plate".

[0023] Working principle: When in use, connect the power supply, place the shaft on the top block 3, start the drive motor 9, the drive motor 9 drives the threaded rod 10 to rotate, the threaded rod 10 drives the threaded block 11 to descend, the threaded block 11 drives the fixing plate 13 to descend, fix the shaft, and lock the chuck 6 above the bearing. Start the electric hydraulic cylinder 2, the electric hydraulic cylinder 2 drives the top block 3 to rise, so that the connecting rod 5 and the chuck 6 rotate upward. Through the continuous rise of the top block 3, the bearing is disassembled.

[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A puller for the outer ring of a tapered roller bearing, comprising a base (1), characterized in that, An electric hydraulic cylinder (2) is fixedly connected to the upper end of the base (1), a top block (3) is fixedly connected to the upper end of the electric hydraulic cylinder (2), three mounting ears (4) are fixedly connected to the side wall of the electric hydraulic cylinder (2), a connecting rod (5) is rotatably connected to the outer side of each of the three mounting ears (4), and a pawl (6) is rotatably connected to the inside of each of the three connecting rods (5). An installation rod (7) is fixedly connected to the upper end of the base (1). An installation groove (8) is provided on one side of the installation rod (7). A drive motor (9) is fixedly connected inside the installation groove (8). A threaded rod (10) is fixedly connected to the output shaft of the drive motor (9). A threaded block (11) is threadedly connected to the outer surface of the threaded rod (10). A fixing plate (13) is fixedly connected to one side of the threaded block (11).

2. The tapered roller bearing outer ring puller as described in claim 1, characterized in that: The top block (3) is a "conical block".

3. A tapered roller bearing outer ring puller as described in claim 1, characterized in that: The lower end of the threaded rod (10) is fixedly connected to a bearing (12), which is fixed to the bottom wall of the mounting groove (8).

4. A tapered roller bearing outer ring puller as described in claim 1, characterized in that: One side of the threaded block (11) is slidably connected to the side wall of the mounting groove (8).

5. A tapered roller bearing outer ring puller as described in claim 1, characterized in that: The fixing plate (13) is an "L-shaped plate".

Images