Chuck bearing dismounting device

Abstract

The utility model relates to the field of bearing dismounting, and discloses a chuck bearing dismounting device which comprises a puller disc, a lead screw is in threaded connection with the center of the top of the puller disc, the lead screw vertically penetrates through the puller disc, the top end of the lead screw is fixedly connected with a rotating handle, and six adjusting holes are formed in the top of the puller disc. The adjusting holes are evenly distributed in a radial mode with the lead screw as the circle center and extend outwards, two semi-annular chucks are arranged below the puller disc and symmetrically distributed to form a ring, three threaded holes are formed in the top of each chuck and correspond to the adjusting holes in position, and a fixing plate is fixedly connected to the inner edge of the top of each chuck. The two semi-annular chucks are connected in a fastening mode through the bolts to form a stable annular structure, the chucks can be effectively prevented from falling off in the disassembling process, the chucks and the bearing are in surface contact in the disassembling process, the bearing damage risk caused by single-point stress is reduced, and the integrity of the bearing is protected.

Description

Technical Field

[0001] The utility model relates to the field of bearing disassembly, and in particular to a chuck bearing disassembly device. Background Art

[0002] In the field of mechanical maintenance and assembly, bearing disassembly is a common and important operation. Various bearing disassembly tools have emerged, such as hydraulic pullers and mechanical pullers. However, these puller tools are easy to slip when disassembling bearings and are unstable in fixation. Especially in some places where space is limited or it is difficult to directly apply force to the bearing installation position, the current disassembly tools are even more difficult to handle. When disassembling the bearing, the force-bearing surface with the bearing is small, which can easily damage the bearing. Utility Model Content

[0003] In order to overcome the above-mentioned deficiencies, the utility model provides a chuck bearing removal device.

[0004] The technical solution adopted by this utility model:

[0005] A chuck bearing removal device includes a puller plate, a screw rod is connected to the center of the top of the puller plate through a thread, the screw rod passes through the puller plate up and down, the top of the screw rod is fixedly connected to a handle, six adjustment holes are opened on the top of the puller plate, the adjustment holes are evenly distributed radially with the screw rod as the center, and the adjustment holes extend outward. There are two semi-annular chucks under the puller plate, and the two chucks are symmetrically distributed to form a ring. Three threaded holes are opened on the top of the chuck, and the positions of the threaded holes and the adjustment holes are corresponding. The inner edge of the top of the chuck is fixedly connected It is connected to a fixing plate, and connecting bolts are inserted and installed between the two ends of the two fixing plates. There are three pull rods between the puller disk and the two chucks. The three pull rods are distributed in an equilateral triangle. The bottom end of the pull rod is threadedly connected to the threaded hole, and the outer wall of the bottom end of the pull rod is threadedly connected to the lower locking nut, and the top of the lower locking nut abuts against the bottom of the chuck. The top end of the pull rod passes through the adjustment hole, and the pull rod and the adjustment hole are clearance-matched. The outer wall of the top end of the pull rod is threadedly connected to the upper locking nut, and the bottom of the upper locking nut abuts against the top of the puller disk.

[0006] Beneficial effects of the utility model:

[0007] The utility model adopts two semi-annular chucks that are fastened together by bolts to form a stable annular structure, which can effectively prevent the chuck from falling off during the disassembly process. By adjusting the position of the pull rod in the threaded hole and the tightness of the upper locking nut and the lower locking nut, it can adapt to the disassembly needs of bearings of different sizes and shapes, thereby improving the versatility and flexibility of the device. During the disassembly process, there is surface contact between the chuck and the bearing, which reduces the risk of bearing damage caused by single-point force and is conducive to protecting the integrity of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 yes Figure 1 Front view of

[0010] Figure 3 yes Figure 2 Cross-section at AA;

[0011] Figure 4 It is a structural schematic diagram of the utility model with one chuck removed.

[0012] The specific reference numerals in all the drawings are: 1. puller plate; 2. screw rod; 3. handle; 4. adjustment hole; 5. pull rod; 6. upper locking nut; 7. chuck; 8. threaded hole; 9. fixing plate; 10. connecting bolt; 11. lower locking nut. DETAILED DESCRIPTION

[0013] like Figure 1-4 As shown: A chuck bearing removal device includes a puller plate 1, a screw rod 2 is connected to the top center of the puller plate 1 through a thread, the screw rod 2 passes through the puller plate 1 up and down, and a handle 3 is fixedly connected to the top of the screw rod 2. Six adjustment holes 4 are opened on the top of the puller plate 1. The adjustment holes 4 are evenly distributed radially with the screw rod 2 as the center. The adjustment holes 4 extend outward. There are two semi-annular chucks 7 below the puller plate 1. The two chucks 7 are symmetrically distributed to form a ring. Three threaded holes 8 are opened on the top of the chuck 7. The threaded holes 8 correspond to the positions of the adjustment holes 4. The inner edge of the top of the chuck 7 is fixedly connected It is connected to a fixing plate 9, and connecting bolts 10 are inserted and installed between the two ends of the two fixing plates 9. There are three pull rods 5 between the puller disk 1 and the two chucks 7. The three pull rods 5 are distributed in an equilateral triangle. The bottom end of the pull rod 5 is threadedly connected to the threaded hole 8, and the outer wall of the bottom end of the pull rod 5 is threadedly connected to the lower locking nut 11, and the top of the lower locking nut 11 abuts against the bottom of the chuck 7. The top end of the pull rod 5 passes through the adjustment hole 4, and the pull rod 5 and the adjustment hole 4 are clearance-fitted. The outer wall of the top end of the pull rod 5 is threadedly connected to the upper locking nut 6, and the bottom of the upper locking nut 6 abuts against the top of the puller disk 1.

[0014] First, place the two semi-annular chucks 7 symmetrically on both sides of the bearing to be disassembled, ensuring that they can fit tightly against the outer ring of the bearing. Then, align the fixing plates 9 on the top of the two chucks 7, and use connecting bolts 10 to pass through the two ends of the fixing plates 9 to fasten the two chucks 7 together to form a complete annular structure. This can effectively prevent the chucks from falling off during the disassembly process.

[0015] Then, according to the position of the bearing, adjust the extension length of the screw rod 2 so that the screw rod 2 does not directly interfere with the installation of the chuck 7. Next, screw the bottom ends of the three pull rods 5 into the threaded holes 8 on the top of the chuck 7 respectively, and tighten the lower locking nut 11 appropriately to ensure that the pull rod 5 is firmly connected to the chuck 7. At this time, the top end of the pull rod 5 will pass through the adjustment hole 4 of the puller disk 1, but will not be locked yet.

[0016] Then, above the puller plate 1, by rotating the upper locking nut 6, the top end of the pull rod 5 is fixed on the puller plate 1, and at the same time, it is ensured that the bottom of the upper locking nut 6 is tightly abutted against the top of the puller plate 1, thereby achieving the positioning and locking of the pull rod 5 in the vertical direction. At this time, the three pull rods 5 are distributed in an equilateral triangle, providing a stable three-point support for the disassembly process.

[0017] Finally, by rotating the handle 3, the screw rod 2 gradually descends and presses against the shaft inside the bearing, driving the puller plate 1 and the pull rod 5 connected to it to rise. Since the bottom end of the pull rod 5 is tightly connected to the chuck 7, as the puller plate 1 rises, the chuck 7 will tightly clamp the bearing and apply an upward pulling force, thereby gradually removing the bearing from the installation position.

Claims

1. A chuck bearing removal device, characterized in that: The invention comprises a puller disc (1), wherein a screw rod (2) is connected to the center of the top of the puller disc (1) by a thread, the screw rod (2) passes through the puller disc (1) from top to bottom, and a turning handle (3) is fixedly connected to the top of the screw rod (2). Six adjustment holes (4) are opened on the top of the puller disc (1), and the adjustment holes (4) are evenly distributed in a radial shape with the screw rod (2) as the center of the circle. The adjustment holes (4) extend outward. Two semi-annular chucks (7) are provided below the puller disc (1), and the two chucks (7) are symmetrically distributed to form a ring shape. Three threaded holes (8) are opened on the top of the chuck (7), and the positions of the threaded holes (8) and the adjustment holes (4) correspond to each other. A fixing plate (9) is fixedly connected to the inner edge of the top of the chuck (7). , connecting bolts (10) are inserted and installed between the two ends of the two fixing plates (9), and there are three pull rods (5) between the puller disc (1) and the two chucks (7). The three pull rods (5) are distributed in an equilateral triangle. The bottom end of the pull rod (5) is threadedly connected to the threaded hole (8), and the outer wall of the bottom end of the pull rod (5) is threadedly connected to a lower locking nut (11). The top of the lower locking nut (11) abuts against the bottom of the chuck (7). The top end of the pull rod (5) passes through the adjustment hole (4). The pull rod (5) and the adjustment hole (4) are clearance-matched. The outer wall of the top end of the pull rod (5) is threadedly connected to an upper locking nut (6), and the bottom of the upper locking nut (6) abuts against the top of the puller disc (1).

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