Light bearing puller assembly

Abstract

The utility model discloses a light bearing puller assembly, which relates to the technical field of pullers and comprises a mounting rack, a plurality of fixed arm modules, a plurality of telescopic parts, a pulling screw, a protective support group and a rotating module, a threaded hole is formed in the middle of the mounting rack, and a plurality of movable shafts are arranged on the circumferential edge of the mounting rack; the top end of one fixed arm module is hinged with one movable shaft, and the other end is inserted into a gap outside the bearing; one end of a telescopic piece is hinged to the mounting frame, and the other end of the telescopic piece is hinged to the fixed arm module; the protection supporting set is connected to the bottom end of the drawing screw so as to make contact with the bearing pedestal and can protect the contact face of the bearing pedestal. The rotating module is detachably and fixedly connected with the top end of the drawing screw rod, the rotating module is rotated to drive the drawing screw rod to rotate so that the mounting frame can be far away from or close to the protection supporting set, the structure is simple, use is convenient, and the contact face of the bearing seat is effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of pullers, in particular to a light bearing puller assembly. Background Art

[0002] A puller, namely a bearing puller, is a device for removing an inner bearing from a bearing seat. It is an internal bearing puller, which includes a mounting plate, a tension bolt and a through wire bolt; there are no less than two tension bolts, and the bottom of each tension bolt has a claw that can hook the bottom of the internal bearing. A fastening nut is installed on each tension bolt. There is no less than one long hole in the middle of the mounting plate. The width of the long hole is greater than the diameter of the tension bolt. The lower end of each tension bolt passes through the long hole and extends below the mounting plate. The fastening nut can be stuck on the mounting plate at the long hole; no less than two positioning nuts are fixed on the mounting plate outside the long hole.

[0003] For example, the utility model with the application number 201821648223.9 discloses a puller structure. In this puller, the linkage seat is fixedly connected downward through the connecting piece. The fixed seat extends obliquely downward with a plurality of first fixed arms, and the linkage seat extends outward with a plurality of second fixed arms. The positions of the first fixed arms and the second fixed arms correspond to each other, and the first fixed arm is shorter than the second fixed arm. The first fixed arm and the second fixed arm are respectively provided with a groove extending along its extension direction, and a clamping arm is respectively slidably arranged in the grooves of the two fixed arms with a convex block. However, similar to the puller in the above document, an external tool is used to rotate the central tension bolt, so that the mounting plate connecting piece will drive the fixed arm to perform vertical translation. Since the bolt needs to be screwed by an external tool, the convenience of the whole puller is reduced when it needs to be used. At the same time, the bottom of the bolt will directly abut against the bearing seat in the center of the bearing, which will wear the contact surface between the bearing seat and it to a certain extent. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a light bearing puller assembly to solve the problems existing in the above prior art. The structure is simple, easy to use, and can effectively protect the contact surface of the bearing seat.

[0005] To achieve the above purpose, the utility model provides the following scheme:

[0006] The utility model provides a light bearing puller assembly, comprising: a mounting frame, a plurality of fixed arm modules, a plurality of telescopic members, a pulling screw, a protective support group and a rotating module. A threaded hole is provided in the middle of the mounting frame, and a plurality of movable shafts are provided on the circumferential edge of the mounting frame; the top end of one fixed arm module is used for hinged connection with one movable shaft, and the other end is used for inserting into the gap outside the bearing; one end of one telescopic member is used for hinged connection with the mounting frame, and the other end is used for hinged connection with the fixed arm module. The telescopic movement of the telescopic member can drive the fixed arm module to rotate around the axis of the movable shaft; the pulling screw is in threaded connection with the threaded hole and passes through the mounting frame; the protective support group is used for connecting to the bottom end of the pulling screw to contact the bearing seat and can protect the contact surface of the bearing seat; the rotating module is used for detachably fixing connection with the top end of the pulling screw, and rotating the rotating module can drive the pulling screw to rotate so that the mounting frame moves away from or approaches the protective support group.

[0007] Preferably, the protective support group includes a connecting bottom plate, a dismounting and assembling block, a resisting block and a protective pad. The connecting bottom plate is used for fixedly connecting with the bottom of the pulling screw. The resisting block is detachably and fixedly connected with the connecting bottom plate through the dismounting and assembling block. The protective pad is attached to the bottom of the resisting block to contact the bearing seat.

[0008] Preferably, the rotating module includes a rotating handle, a connecting shaft and a fixing sleeve. The fixing sleeve is used for detachably fixing connection with the top end of the pulling screw. The connecting shaft is welded and connected to the center of the bottom of the rotating handle, and the bottom end of the connecting shaft is fixedly connected with the fixing sleeve.

[0009] Preferably, a stabilizing frame is further included. The stabilizing frame is fixedly connected below the mounting frame. A through hole is provided in the middle of the stabilizing frame for the pulling screw to pass through. One end of the telescopic member away from the fixed arm module is used for hinged connection with the stabilizing frame.

[0010] Preferably, the telescopic member is a pneumatic rod.

[0011] Preferably, the number of the movable shafts is two. The two movable shafts are respectively arranged at both ends of the mounting frame and are symmetrically arranged with respect to the threaded hole. The number of the fixed arm modules is two, and the number of the pneumatic rods is two. The two pneumatic rods are symmetrically arranged with respect to the through hole.

[0012] Preferably, the fixed arm module includes a connecting frame, a dismounting and assembling frame and a hook arm. The dismounting and assembling frame is connected to the bottom of the connecting frame, and the hook arm is detachably and fixedly connected to the bottom of the dismounting and assembling frame.

[0013] Preferably, it further includes a plurality of fixing bolts, and the hook arm and the disassembly and assembly frame are connected by the fixing bolts.

[0014] The utility model has achieved the following technical effects compared with the prior art:

[0015] The purpose of the utility model is to provide a light bearing puller assembly. By arranging a rotating module and enabling the rotating module to be detachably and fixedly connected to the top of the pulling screw, the whole rotating module can be disassembled and assembled with the pulling screw according to needs. At the same time, it is more convenient and labor-saving to adjust the pulling screw through the rotating module, improving the operation efficiency. Meanwhile, the detachable structure can reduce the space occupation during storage, improving the practicability of the whole device; at the same time, the protection and support group can protect the contact surface of the bearing seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of the light bearing puller assembly provided by the present invention;

[0018] Figure 2 It is Figure 1 the enlarged inner view of part A;

[0019] Figure 3 It is a schematic structural diagram of the fixed arm module in the light bearing puller assembly provided by the present invention;

[0020] Figure 4 It is a partial three-dimensional structural diagram of the fixed arm module in the light bearing puller assembly provided by the present invention.

[0021] In the figure: 1, mounting frame; 2, pulling screw; 3, rotating module; 301, rotating handle; 302, connecting shaft; 303, fixed screw sleeve; 4, protection and support group; 401, connecting and abutting plate; 402, disassembly and assembly block; 403, abutting block; 404, protection pad; 5, stabilizing frame; 6, movable shaft; 7, fixed arm module; 701, connecting frame; 702, disassembly and assembly frame; 703, hook arm; 704, fixing bolt; 8, pneumatic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model 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 of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] The purpose of the present utility model is to provide a light bearing puller assembly to solve the problems existing in the above-mentioned prior art. It has a simple structure, is easy to use, and effectively protects the contact surface of the bearing seat.

[0024] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] The present utility model provides a light bearing puller assembly, as Figures 1 to 4 shown, including: a mounting frame 1, a plurality of fixed arm modules 7, a plurality of telescopic members, a pulling screw 2, a protective support group 4, and a rotating module 3. A threaded hole is provided in the middle of the mounting frame 1, and a plurality of movable shafts 6 are provided on the circumferential edge of the mounting frame 1; the top end of one fixed arm module 7 is used for hinged connection with one movable shaft 6, and the other end is used for inserting into the gap outside the bearing; one end of a telescopic member is used for hinged connection with the mounting frame 1, and the other end is used for hinged connection with the fixed arm module 7. The telescopic movement of the telescopic member can drive the fixed arm module 7 to rotate around the axis of the movable shaft 6; the pulling screw 2 is threadedly connected to the threaded hole and passes through the mounting frame 1; the protective support group 4 is used to be connected to the bottom end of the pulling screw 2 to contact the bearing seat and can protect the contact surface of the bearing seat; the rotating module 3 is used to be detachably fixedly connected to the top end of the pulling screw 2. Rotating the rotating module 3 can drive the pulling screw 2 to rotate so that the mounting frame 1 moves away from or closer to the protective support group 4. By providing the rotating module 3 and making the rotating module 3 detachably fixedly connected to the top of the pulling screw 2, the entire rotating module 3 can be disassembled and assembled with the pulling screw 2 as needed. At the same time, adjusting the pulling screw 2 through the rotating module 3 is more convenient and labor-saving, improving the operation efficiency. At the same time, the detachable structure reduces the space occupation during storage and improves the practicability of the entire device; at the same time, the protective support group 4 can protect the contact surface of the bearing seat.

[0026] In a preferred embodiment, the protection and support group 4 includes a connecting bottom plate 401, a disassembly and assembly block 402, a resisting block 403, and a protection pad 404. The connecting bottom plate 401 is used for fixedly connecting with the bottom of the pulling screw 2. The resisting block 403 is detachably and fixedly connected to the connecting bottom plate 401 through the disassembly and assembly block. The protection pad 404 is attached to the bottom of the resisting block 403 to contact the bearing seat. Since the conventional puller directly contacts the top of the bearing seat through the bottom end of the pulling screw 2, and since they are both made of metal and are in mutual extrusion contact, to a certain extent, it will damage the contact surface of the bearing seat. By using the protection and support group 4 with a detachable structure, on the one hand, through the disassembly and assembly block 402, the resisting block 403 can be replaced with a corresponding size according to the diameter of the bearing seat for installation, so as to be used to deal with different situations. At the same time, the protection pad 404 attached to the bottom surface of the resisting block 403 can not only protect the contact surface between the resisting block 403 and the bearing seat, but also not affect the mutual friction, improving the stability of the contact surface.

[0027] In a preferred embodiment, the rotation module 3 includes a rotation handle 301, a connecting shaft 302, and a fixed screw sleeve 303. The fixed screw sleeve 303 is used for detachably fixing the top end of the pulling screw 2. The connecting shaft 302 is welded to the center of the bottom of the rotation handle 301, and the bottom end of the connecting shaft 302 is fixedly connected to the fixed screw sleeve 303. The top of the pulling screw 2 in the conventional puller is a structure of a multi-sided nut. When in use, it is driven to be screwed by an external tool, such as a wrench and other related tools, so as to be further used. This structural setting is relatively cumbersome. When the user does not have the relevant tools around, the use of the entire puller will be affected.

[0028] In a preferred embodiment, the light-duty bearing puller assembly further includes a stabilizing frame 5. The stabilizing frame 5 is fixedly connected below the mounting frame 1. A through hole is provided in the middle of the stabilizing frame 5 for the pulling screw 2 to pass through. The end of the telescopic member away from the fixed arm module 7 is used for hinged connection with the stabilizing frame 5. The stabilizing frame 55 is in a "U" - shaped structure, which can ensure the stability of the movement of the mounting frame 1 along the pulling screw 2.

[0029] In a preferred embodiment, the telescopic member is a pneumatic rod 8, which has a simple structure and convenient material selection.

[0030] In a preferred embodiment, the number of the movable shafts 6 is two. The two movable shafts 6 are respectively arranged at both ends of the mounting frame 1 and are symmetrically arranged with respect to the threaded hole. The number of the fixed arm modules 7 is two, and the number of the pneumatic rods 8 is two. The two pneumatic rods are symmetrically arranged with respect to the through hole, ensuring the stability during the disassembly process.

[0031] In a preferred embodiment, the fixed arm module 7 includes a connecting frame 701, a disassembly frame 702 and a hook arm 703, the disassembly frame 702 is connected to the bottom of the connecting frame 701, and the hook arm 703 is detachably fixedly connected to the bottom of the disassembly frame 702.

[0032] In a preferred embodiment, it also includes a plurality of fixing bolts 704, and the hook arm 703 is connected to the disassembly frame 702 through the fixing bolts 704. Since the fixed arm module 7 also has a detachable structure, the hook arm 703 can be quickly and easily separated or installed from the disassembly frame 702 by using the fixing bolts 704, and the hook arm 703 itself can be disassembled and replaced according to the size of the bearing, so as to meet different usage needs, thereby improving the scope of application and flexibility of the entire puller.

[0033] When in use, firstly, the entire rotating module 3 is connected to the fixing screw sleeve 303 at the bottom of the shaft 302 to vertically install the rotating handle 301 on the top of the pulling screw 2, and then, according to the size of the bearing to be disassembled and the diameter of the bearing seat, the size of the stop block 403 and the hook arm 703 are adjusted, and the stop block 403 of the corresponding size is quickly replaced by the disassembly frame 702 connected to the bottom of the stop plate 401, and then the fixing bolt 704 on the disassembly frame 702 is unscrewed, and the hook arm 703 of the corresponding size is inserted into the middle of the disassembly frame 702, and the fixing bolt 704 is used to further connect and fix;

[0034] Then, the fixed arm modules 7 on the left and right sides are respectively moved to the left and right through the movable shaft 6, which will drive the pneumatic rod 8 connected thereto to stretch the structure, and then the hook arm 703 is inserted into the gaps on the left and right sides of the bearing, and the stop block 403 is pressed vertically on the axial position of the bearing seat. At this time, the protective pad 404 attached to the bottom surface of the stop block 403 can not only protect the contact surface between the stop block 403 and the bearing seat, but also has sufficient friction to avoid sliding. Then, under the structural contraction of the pneumatic rod 8, the fixed arm modules 7 moved to the left and right sides will converge towards the direction of the central protective support group 4;

[0035] At this time, rotating the rotating handle 301 will drive the pulling screw 2 to perform synchronous axial rotation. Since the mounting frame 1 is threadedly connected to the pulling screw 2, the mounting frame 1 will translate upward in the vertical direction along the thread on its surface. At this time, the fixed arm module 7 connected to the bottom of the mounting frame 1 through the stabilizing frame 5 and the movable shaft 6 will be driven by the mounting frame 1 to synchronously pull the bearing inserted in the center of the bearing seat in the vertical direction, and the pulling screw 2 and the protective support group 4 at the bottom will rest against the center of the bearing seat. As the number of rotations of the rotating handle 301 increases, the entire mounting frame 1 together with the fixed arm module 7 will pull the bearing out from the bearing seat little by little until it is completely removed.

[0036] In this utility model, specific examples are used to expound the principle and implementation manner of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation on the utility model.

Claims

1. A light bearing puller assembly, characterized in that: include: A mounting frame, wherein a threaded hole is provided in the middle of the mounting frame, and a plurality of movable shafts are provided on the circumferential edge of the mounting frame; A plurality of fixed arm modules, wherein the top end of one of the fixed arm modules is used for being hingedly connected to one of the movable shafts, and the other end is used for being inserted into the gap outside the bearing; A plurality of telescopic members, one end of each of the telescopic members is used for hinged connection with the mounting frame, and the other end is used for hinged connection with the fixed arm module, and the telescopic movement of the telescopic member can drive the fixed arm module to rotate around the axis of the movable shaft; A pull screw, the pull screw is screwed to the threaded hole and passes through the mounting frame; a protective support group, the protective support group being used to be connected to the bottom end of the pull screw to contact with the bearing seat and to protect the contact surface of the bearing seat; and A rotating module is used to be detachably fixedly connected to the top end of the pulling screw rod. Rotating the rotating module can drive the pulling screw rod to rotate so that the mounting frame moves away from or closer to the protective support group.

2. The light-duty bearing puller assembly according to claim 1, characterized in that: The protective support group includes a connecting plate, a disassembly block, a block and a protective pad. The connecting plate is used to be fixedly connected to the bottom of the pulling screw. The block is detachably fixedly connected to the connecting plate through the disassembly block. The protective pad is attached to the bottom of the block to contact the bearing seat.

3. The lightweight bearing puller assembly according to claim 1, characterized in that: The rotating module includes a rotating handle, a connecting shaft and a fixed screw sleeve. The fixed screw sleeve is used to detachably fix the top end of the pulling screw. The connecting shaft is welded to the center of the bottom of the rotating handle, and the bottom end of the connecting shaft is fixedly connected to the fixed screw sleeve.

4. The lightweight bearing puller assembly according to claim 1, characterized in that: It also includes a stabilizing frame, which is fixedly connected to the bottom of the mounting frame. A through hole is provided in the middle of the stabilizing frame for allowing the pulling screw to pass through. One end of the telescopic member away from the fixed arm module is used for hinged connection with the stabilizing frame.

5. The lightweight bearing puller assembly according to claim 4, characterized in that: The telescopic member is a pneumatic rod.

6. The lightweight bearing puller assembly according to claim 5, characterized in that: There are two movable shafts, which are respectively arranged at two ends of the mounting frame and symmetrically arranged about the threaded hole. There are two fixed arm modules, and there are two pneumatic rods, which are symmetrically arranged about the through hole.

7. The lightweight bearing puller assembly according to claim 6, characterized in that: The fixed arm module comprises a connecting frame, a disassembling frame and a hook arm, wherein the disassembling frame is connected to the bottom of the connecting frame, and the hook arm is detachably fixedly connected to the bottom of the disassembling frame.

8. The lightweight bearing puller assembly according to claim 7, characterized in that: The device also includes a plurality of fixing bolts, and the hook arm is connected to the disassembly and assembly frame through the fixing bolts.

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