Bearing pulling device

Abstract

The utility model discloses a bearing pulling device, which relates to the technical field of bearing processing equipment and comprises a fixing frame, the side surface of the fixing frame is fixedly connected with a reinforcing plate through a fixing bolt, the inner side of the reinforcing plate is fixedly connected with a middle ring, and the inner side of the middle ring is fixedly connected with a hydraulic jack. The other end of a rotating sleeve in threaded connection with the bottom end of the leveling screw rod is movably connected with a connecting frame through the rotating sleeve, and the side face of the connecting frame can fix an internal bearing body through a locking rod. The inner side of a positioning groove formed in the inner side of the pulling and inserting shaft on the inner side of the bearing body is clamped with a push rod at the top end of the hydraulic jack, the bearing body can be rapidly disassembled, the problems that a bearing of mechanical equipment is difficult to disassemble and large in labor intensity are solved, the bearing is easily disassembled by using the device, time is saved, the bearing is rapidly installed, and therefore production is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing equipment, and particularly relates to a bearing pulling device. Background Art

[0002] A bearing is a precision mechanical component that changes the sliding friction between a rotating shaft and a shaft seat into rolling friction, thereby reducing frictional losses. A rolling bearing generally consists of four parts: an inner ring, an outer ring, rolling elements, and a cage. The function of the inner ring is to cooperate with the shaft and rotate together with the shaft; the function of the outer ring is to cooperate with the bearing seat and play a supporting role. After retrieval, a bearing pulling device with the publication number CN202120808382.6 includes a bearing pulling seat, a bearing magnetic positioning part, a fixing part, and a fastening part. The bearing magnetic positioning part is placed in the groove of the bearing pulling seat and fixed by the fixing part. The fastening part is screwed into the upper threaded hole provided in the bearing pulling seat. The existing bearing pulling mechanical equipment pulls out the inner ring of the bearing. Although it reduces the workload of manual operation, it is fixed by the fixing part, can only be used for bearings of specific sizes, and the bearing pulling seat is large in size and is easily blocked by shaft end components, with poor adaptability and difficult single-person operation. Content of the Utility Model

[0003] The purpose of the utility model is to provide a bearing pulling device, which has a simple structure, good applicability, low overall quality, and can be operated by a single person.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A bearing pulling device includes a fixing frame. The side of the fixing frame is fixedly connected with a reinforcing plate through a fixing bolt. The inner side of the reinforcing plate is fixedly connected with an intermediate ring. The inner side of the intermediate ring is fixedly connected with a hydraulic jack. A push rod is arranged on the front side of the hydraulic jack. A leveling screw rod is arranged on the inner side of the reinforcing plate. The top end of the leveling screw rod is fixedly connected with a limiting plate. And the end of the leveling screw rod away from the limiting plate is threadedly connected with a rotating sleeve. The other side of the rotating sleeve is movably connected with a connecting frame. A bearing body is arranged inside the connecting frame. An inserting shaft is fixedly connected to the inside of the bearing body. The present invention solves the problems that it is difficult to disassemble the bearings of mechanical equipment and the labor intensity is high. Using this device, the bearings can be easily disassembled, saving time, and quickly installed, thus not affecting production. This device is diversified. According to the size of the bearing, a suitable hook can be selected for convenient use.

[0005] As a preferred technical solution of the utility model, a clamping groove is opened on the side of the reinforcing plate, and a limiting plate is clamped inside the clamping groove.

[0006] As a preferred technical solution of the utility model, a through groove is arranged inside the clamping groove, and the outside of the leveling screw rod is movably connected with the inside of the through groove.

[0007] As a preferred technical solution of the present utility model, a convex plate is fixedly connected to the side surface of the rotating sleeve.

[0008] As a preferred technical solution of the present utility model, a rotating ring is fixedly connected to the bottom end of the connecting frame, and the rotating ring is fixedly connected to the side surface of the rotating sleeve; a reinforcing plate is installed on the side surface of the fixed frame through a fixing bolt, a leveling screw rod is installed on the side surface of the reinforcing plate through a clamping groove and a through groove, and a limiting plate installed at the top end of the leveling screw rod is clamped inside the clamping groove to fix the adjusting screw rod. To prevent it from rotating, the other end of the rotating sleeve threadedly connected to the bottom end of the leveling screw rod is movably connected to the connecting frame through the rotating sleeve. The bearing body inside can be fixed through a locking rod on the side surface of the connecting frame, and the positioning groove inside the inner side of the plug-in shaft inside the bearing body is clamped with the push rod at the top end of the hydraulic jack, so that the bearing body can be quickly disassembled.

[0009] As a preferred technical solution of the present utility model, a locking rod located on the side surface of the bearing body is threadedly connected to the side surface of the connecting frame, and the number of the locking rods is three.

[0010] As a preferred technical solution of the present utility model, a positioning groove is provided inside the plug-in shaft, and the push rod is located inside the positioning groove.

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

[0012] In the present utility model, a reinforcing plate is installed on the side surface of the fixed frame through a fixing bolt, a leveling screw rod is installed on the side surface of the reinforcing plate through a clamping groove and a through groove, and a limiting plate installed at the top end of the leveling screw rod is clamped inside the clamping groove to fix the adjusting screw rod. The other end of the rotating sleeve threadedly connected to the bottom end of the leveling screw rod is movably connected to the connecting frame through the rotating ring. The bearing body inside can be firmly held through a locking rod on the side surface of the connecting frame, and the positioning groove inside the inner side of the plug-in shaft inside the bearing body is clamped with the push rod at the top end of the hydraulic jack, so that the bearing body can be quickly disassembled.

[0013] The present utility model solves the problems that the bearings of mechanical equipment are difficult to disassemble and the labor intensity is high. With this device, the bearings can be easily disassembled, saving time, and quickly installed, thus not affecting production. This device is diversified. According to the size of the bearing, a suitable hook can be selected for convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of the three-dimensional structure of the present utility model Figure 1 ;

[0015] Figure 2 is a perspective view of the three-dimensional structure of the present utility model Figure 2 , in which components such as the hydraulic jack and the limiting plate are removed;

[0016] Figure 3 Schematic diagram of the three-dimensional structure of components such as the limit plate, rotating sleeve, and connecting frame of the present utility model;

[0017] Figure 4 Schematic diagram of the three-dimensional structure of components such as the connecting frame and locking rod of the present utility model;

[0018] Figure 5 Cross-sectional view of the leveling screw rod, rotating sleeve, and rotating ring of the present utility model.

[0019] In the figure: 1, fixed frame; 2, reinforcing plate; 3, fixing bolt; 4, intermediate ring; 5, hydraulic jack; 6, push rod; 7, limit plate; 8, leveling screw rod; 9, rotating sleeve; 10, connecting frame; 11, locking rod; 12, convex plate; 13, rotating ring; 14, bearing body; 15, plug-in shaft; 16, positioning groove; 17, clamping groove; 18, through groove. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-5 , the present utility model provides a bearing pulling device, including a fixed frame 1. A reinforcing plate 2 is installed on the side of the fixed frame 1 through a fixing bolt 3. A threaded hole is opened on the side of the fixed frame 1, and a through hole is opened on the reinforcing plate 2. The fixing bolt 3 passes through the through hole of the reinforcing plate 2 and is threadedly connected to the threaded hole on the side of the fixed frame 1.

[0022] An intermediate ring 4 is arranged inside the reinforcing plate 2. As Figure 2 shown, the intermediate ring 4 is located at the center of the reinforcing plate 2. A hydraulic jack 5 is installed inside the intermediate ring 4. The hydraulic jack 5 can be installed with bolts through the mounting plate at the bottom and the threaded hole on the intermediate ring 4, or installed with a flange. Both are common knowledge in the field and will not be repeated here. A push rod 6 is provided on the front side of the hydraulic jack 5.

[0023] Leveling screw rods 8 are arranged inside the reinforcing plate 2. There are 3 leveling screw rods 8 evenly distributed. A limit plate 7 is arranged at one end of the leveling screw rod 8, and a rotating sleeve 9 is threadedly connected to the end of the leveling screw rod 8 far from the limit plate 7. That is, an external thread is provided on the outer surface of the leveling screw rod 8, and a threaded hole is opened on the end face of the rotating sleeve 9. Of course, further, to prevent the leveling screw rod 8 from falling out of the threaded hole, a limit plate (similar to the rotating ring 13) is provided on the leveling screw rod 8.

[0024] On the other side of the rotating sleeve 9, there is a movable connection with a connecting frame 10. Inside the connecting frame 10, there is a bearing body 14, and inside the bearing body 14, there is a fixed connection with a plug-in shaft 15.

[0025] Furthermore, on the side of the reinforcing plate 2, there is a card slot 17. Inside the card slot 17, there is a snap-fitting connection with a limiting plate 7. Inside the card slot 17, there is a through slot 18. The outside of the leveling screw rod 8 is movably connected to the inside of the through slot 18, that is, the leveling screw rod 8 passes through the through slot 18. On the side of the rotating sleeve 9, there is a fixed connection with a convex plate 12.

[0026] At the bottom end of the connecting frame 10, there is a fixed connection with a rotating ring 13. The rotating ring 13 is rotatably arranged inside the end face of the rotating sleeve 9. That is, the connecting frame 10 is cylindrical, it passes through the through hole at the end of the rotating sleeve 9, and the rotating ring 13 is arranged inside the end face of the rotating sleeve 9.

[0027] On the side of the connecting frame 10, there is a threaded connection with a locking rod 11 located on the side of the bearing body 14. The number of locking rods 11 is three. Inside the plug-in shaft 15, there is a positioning groove 16, and the push rod 6 is located inside the positioning groove 16.

[0028] The fixing frame 1 is installed with the reinforcing plate 2 on the side through a fixing bolt 3. The leveling screw rod 8 is installed on the side of the reinforcing plate 2 through the card slot 17 and the through slot 18. The limiting plate 7 installed at the top end of the leveling screw rod 8 is snap-fitted inside the card slot 17, which can fixedly install the leveling screw rod 8 to prevent it from moving around. The other end of the rotating sleeve 9 threadedly connected to the bottom end of the leveling screw rod 8 is movably connected to the connecting frame 10 through the rotating ring 13. The bearing body 14 inside it can be fixed by the locking rod 11 on the side of the connecting frame 10. And the inside of the positioning groove 16 opened inside the plug-in shaft 15 inside the bearing body 14 is snap-fitted with the push rod 6 at the top end of the hydraulic jack 5 (for this design, a positioning groove 16 needs to be prefabricated on the shaft. Of course, even if the end face of the plug-in shaft 15 is a flat surface, it does not affect the use, only the stability of the push rod 6 is slightly reduced), and the bearing body 14 can be quickly disassembled.

[0029] In summary, the fixing frame 1 is installed with the reinforcing plate 2 on the side through a fixing bolt 3. The leveling screw rod 8 is installed on the side of the reinforcing plate 2 through the card slot 17 and the through slot 18. The limiting plate 7 installed at the top end of the leveling screw rod 8 is snap-fitted inside the card slot 17. The other end of the rotating sleeve 9 threadedly connected to the bottom end of the leveling screw rod 8 is movably connected to the connecting frame 10 through the rotating ring 13. The bearing body 14 inside the connecting frame 10 can be stabilized by the locking rod 11 on the side. And the inside of the positioning groove 16 opened inside the plug-in shaft 15 inside the bearing body 14 is snap-fitted with the push rod 6 at the top end of the hydraulic jack 5, and the bearing body 14 can be quickly disassembled. The present invention solves the problem that it is difficult to disassemble the bearings of mechanical equipment and the labor intensity is high. With this device, the bearings can be easily disassembled, saving time, and quickly installed, thus not affecting production. This device is diversified. According to the size of the bearing, a suitable hook can be selected for convenient use.

[0030] During specific use, first, the reinforcing plate 2 is installed on the side of the fixing frame 1 through the fixing bolt 3. The leveling screw rod 8 is installed on the side of the reinforcing plate 2 through the card slot 17 and the through slot 18. The limiting plate 7 installed at the top of the leveling screw rod 8 is clamped inside the card slot 17. The side of the connecting frame 10 can position and stabilize the internal bearing body 14 through the locking rod 11 to prevent loosening. Moreover, the inside of the positioning groove 16 opened inside the insertion and extraction shaft 15 inside the bearing body 14 is clamped with the push rod 6 at the top of the hydraulic jack 5, so that the bearing body 14 can be quickly disassembled. The present invention solves the problem that it is difficult to disassemble the bearings of mechanical equipment and the labor intensity is high. By using this device, the bearings can be easily disassembled, saving time and quickly installed, thus not affecting production. This device is diversified. According to the size of the bearing, a suitable hook is selected for convenient use.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A bearing extraction device, comprising a fixing frame (1), characterized in that: The side of the fixing frame (1) is fixedly connected to a reinforcing plate (2) via fixing bolts (3); the inner side of the reinforcing plate (2) is fixedly connected to an intermediate ring (4); the inner side of the intermediate ring (4) is fixedly connected to a hydraulic jack (5); a push rod (6) is provided on the front side of the hydraulic jack (5); a leveling screw (8) is provided on the inner side of the reinforcing plate (2); the top end of the leveling screw (8) is fixedly connected to a limiting plate (7); and the end of the leveling screw (8) away from the limiting plate (7) is threadedly connected to a rotating sleeve (9); the other side of the rotating sleeve (9) is movably connected to a connecting frame (10); a bearing body (14) is provided on the inner side of the connecting frame (10); and a plug-in shaft (15) is fixedly connected to the inner side of the bearing body (14).

2. A bearing extraction device according to claim 1, characterized in that: A slot (17) is provided on the side of the reinforcing plate (2), and the inner side of the slot (17) is engaged with the limiting plate (7).

3. A bearing extraction device according to claim 2, characterized in that: A through slot (18) is provided on the inner side of the clamping slot (17), and the inner side of the through slot (18) is movably connected to the outer side of the leveling screw rod (8).

4. A bearing extraction device according to claim 1, characterized in that: A convex plate (12) is fixedly connected to the side surface of the rotating sleeve (9).

5. A bearing extraction device according to claim 1, characterized in that: A swivel (13) is fixedly connected to the bottom end of the connecting frame (10), and the swivel (13) is fixedly connected to the side of the swivel sleeve (9).

6. A bearing extraction device according to claim 1, characterized in that: The side surface of the connecting frame (10) is threadedly connected to a locking rod (11) located on the side surface of the bearing body (14), and the number of the locking rods (11) is three.

7. A bearing extraction device according to claim 1, characterized in that: A positioning groove (16) is provided on the inner side of the plug-in / pull-out shaft (15), and the push rod (6) is located on the inner side of the positioning groove (16).

Images