Bearing dismounting tool

Abstract

The utility model discloses a bearing dismounting tool, which comprises a support cross arm, a bearing, a bearing, a bearing, a bearing, a bearing, a bearing, a bearing, a bearing, a bearing, a bearing, a bearing and a bearing, and is characterized in that the support cross arm extends along a first direction; the middle of the support cross arm is provided with a threaded hole extending along a second direction; the screw rod is arranged in the threaded hole and is in threaded connection with the threaded hole; the two pull rods extend in the second direction and are arranged at the two ends of the supporting cross arm at intervals in the first direction, the first ends of the pull rods are connected with the supporting cross arm, and clamping hooks are arranged at the second ends of the pull rods; the pull rod comprises a first rod body and a second rod body which are sequentially connected in the second direction, and the relative position between the first rod body and the second rod body is adjustable so as to adjust the length of the pull rod; the locking piece is arranged between the first rod body and the second rod body and used for locking the relative position between the first rod body and the second rod body. According to the bearing dismounting tool, the adaptability of the bearing dismounting tool and the working efficiency of workers can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance of a rolling machine, in particular to a bearing disassembly tool. Background Art

[0002] Bearings are often used in mechanical equipment to install shafts or rollers. After long-term operation of mechanical equipment, bearings are severely worn and need to be replaced. Especially for mechanical equipment with high precision requirements, bearing replacement frequency is more frequent. In actual application, most types of bearing removal tools are single-specification, and their structure cannot be flexibly adjusted according to the use requirements. This results in the need for workers to use special removal tools that can reach the depth of the bearing position for bearings at different depths during disassembly operations, resulting in low applicability of bearing removal tools, low work efficiency of workers, and failure to meet the needs of modern production.

[0003] Therefore, it is necessary to develop a bearing disassembly tool that can solve the above problems. Utility Model Content

[0004] The utility model aims to solve the problem that existing bearing removal tools are not suitable for removing bearings of various depths. The utility model provides a bearing removal tool with a simple structure, which can be used to remove bearings of various depths, thereby improving the applicability of the bearing removal tool and the work efficiency of the staff.

[0005] In order to solve the above technical problems, the embodiment of the utility model discloses a bearing removal tool, comprising:

[0006] A supporting cross arm extends along a first direction, and a threaded hole extending along a second direction is provided in the middle of the supporting cross arm, and the second direction is perpendicular to the first direction;

[0007] A screw rod is arranged in the threaded hole, and the screw rod is threadedly connected with the threaded hole;

[0008] Two pull rods extend along the second direction, the two pull rods are spaced apart at two ends of the support cross arm along the first direction, the first end of the pull rod is connected to the support cross arm, and the second end of the pull rod is provided with a hook; the pull rod comprises a first rod body and a second rod body connected in sequence along the second direction, and the relative position between the first rod body and the second rod body is adjustable to adjust the length of the pull rod;

[0009] The locking member is arranged between the first rod body and the second rod body, and is used for locking the relative position between the first rod body and the second rod body.

[0010] By adopting the above technical solution, when it is necessary to disassemble the bearings at different depths, it is only necessary to adjust the relative positions of the first rod body and the second rod body along the second direction to adjust the length of the pull rod so that the hook can extend into the position where the bearing is located and hook the end of the outer ring of the bearing. Thus, the bearing removal tool can disassemble the bearings at different depths, solving the problems of low applicability of the bearing removal tool and low work efficiency of the staff, and achieving the effect that the staff can adjust the length of the pull rod according to the actual installation position of the bearing to disassemble the bearing.

[0011] According to another specific embodiment of the utility model, the embodiment of the utility model discloses that the first rod body is provided with a plurality of first connecting holes arranged in sequence along the second direction, and the second rod body is provided with a plurality of second connecting holes arranged in sequence along the second direction; the locking member is a bolt, and the bolt can pass through the first connecting hole and the second connecting hole in corresponding positions to connect the first rod body and the second rod body.

[0012] According to another specific embodiment of the utility model, the embodiment of the utility model discloses that a plurality of protrusions are provided on the side wall of the first rod body at intervals along the second direction, and a plurality of grooves are provided on the side wall of the second rod body at intervals along the second direction, the position of each protrusion corresponds to the position of each groove one by one, and each protrusion can be inserted into each groove corresponding to its position.

[0013] According to another specific embodiment of the utility model, the embodiment of the utility model discloses that the first end of the first rod body is provided with a socket, the end of the supporting cross arm is inserted into the socket, the first end of the second rod body is connected to the second end of the first rod body by a bolt, and the second end of the second rod body is provided with a hook.

[0014] According to another specific embodiment of the present utility model, the embodiment of the present utility model discloses a bearing removal tool which also includes a driving mechanism, and the driving mechanism is used to be connected to the screw rod to drive the screw rod to rotate.

[0015] According to another specific embodiment of the present utility model, the embodiment of the present utility model discloses that the driving mechanism is configured as a hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a bearing removal tool according to a specific embodiment of the utility model is shown;

[0017] Figure 2 Showing a specific embodiment of the utility model Figure 1 Side view of

[0018] Figure 3 A schematic structural diagram of a support cross arm according to a specific embodiment of the utility model is shown;

[0019] Figure 4 A schematic structural diagram of a first rod body in a specific embodiment of the utility model is shown; DETAILED DESCRIPTION

[0020] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0021] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0022] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0024] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a bearing removal tool, including: a support cross arm 1, a screw rod 2, a pull rod 3 and a locking piece (not shown in the figure).

[0027] Specifically, the support cross arm 1 is arranged along a first direction (such as Figure 2 The middle part of the supporting cross arm 1 is provided with a second direction (such as Figure 2 The threaded hole 11 extends in the Y direction (in the second direction), and the second direction is perpendicular to the first direction.

[0028] The screw rod 2 is disposed in the threaded hole 11 , and the screw rod 2 is threadedly connected to the threaded hole 11 .

[0029] Two pull rods 3 extend along the second direction. The two pull rods 3 are spaced apart at the two ends of the support cross arm 1 along the first direction. The first end of the pull rod 3 is connected to the support cross arm. The second end of the pull rod 3 is provided with a hook 31. The hooks 31 on the two pull rods 3 are arranged opposite to each other and bent toward the inner side of the pull rod 3. The pull rod 3 includes a first rod body 32 and a second rod body 33 connected in sequence along the second direction. The relative position of the first rod body 32 and the second rod body 33 along the second direction is adjustable to adjust the length of the pull rod 3.

[0030] The locking member is disposed between the first rod body 32 and the second rod body 33 , and is used to lock the relative position between the first rod body 32 and the second rod body 33 , so as to lock the length of the pull rod 3 .

[0031] The applicant has fully considered the problems that may arise when the staff removes the bearing 4. By setting the length of the pull rod 3 to be adjustable, the hook 31 can be extended to different depths, so that the bearing removal tool can remove the bearing 4 at different depths.

[0032] Specifically, when removing the bearing, first adjust the relative position of the first rod body 32 and the second rod body 33 along the second direction so that the length of the pull rod 3 is adjusted to a preset length (based on being able to extend into the position of the bearing 4). Then use the locking piece to lock the relative position of the first rod body 32 and the second rod body 33 to prevent the first rod body 32 and the second rod body 33 from relative movement. Then, the operator extends the pull rod 3 into the equipment so that the two pull rods 3 are placed on both sides of the bearing 4, and uses the hook 31 to hook the end face of the outer ring of the bearing 4, and then rotates the screw 2 to move the screw 2 along the second direction until the end face of the screw 2 abuts against the end face of the shaft body 41 inserted into the bearing 4. Then, the operator continues to rotate the screw 2. Since the screw 2 is now in contact with the shaft, the screw 2 will not continue to move along the second direction. Therefore, the support cross arm 1 will drive the two pull rods 3 together along the third direction (such as Figure 2The hook 31 moves in the Z direction as shown in the figure. At this time, the hook 31 applies a force along the third direction to the bearing 4 to remove the bearing 4 from the shaft, thereby realizing the disassembly of the bearing 4.

[0033] Furthermore, the first rod body 32 is provided with a plurality of first connection holes 34 arranged in sequence and spaced apart along the second direction, and the second rod body 33 is provided with a plurality of second connection holes 35 arranged in sequence and spaced apart along the second direction; the locking member is a bolt (not shown in the figure). When adjusting the relative position of the first rod body 32 and the second rod body 33 along the second direction, the second rod body 33 is first moved to a suitable position so that the second connection hole 35 on the second rod body 33 is aligned with the first connection hole 34 on the first rod body 32, and then the bolt is passed through the first connection hole 34 and the second connection hole 35 at the corresponding positions and locked, so that the first rod body 32 and the second rod body 33 are connected.

[0034] The bearing removal tool of the present invention can be provided with a first connecting hole 34 and a second connecting hole 35 on the first rod body 32 and the second rod body 33 respectively, so that bolts can pass through the first connecting hole 34 and the second connecting hole 35 in a corresponding position relationship to fix the first rod body 32 and the second rod body 33, thereby achieving the effect of locking the relative position of the first rod body 32 and the second rod body 33.

[0035] Furthermore, a plurality of protrusions 36 are provided on the side wall of the first rod body 32 at intervals along the second direction, and a plurality of grooves 37 are provided on the side wall of the second rod body 33 at intervals along the second direction. The position of each protrusion 36 corresponds to the position of each groove 37 one by one, and each protrusion 36 can be inserted into each groove 37 corresponding to its position.

[0036] The bearing removal tool of the present invention can be provided with multiple protrusions 36 and grooves 37 on the side walls of the first rod body 32 and the second rod body 33, and each protrusion 36 can be inserted into each groove 37 at a corresponding position. When the pull rod 3 pulls the bearing 4 along the third direction, the pulling force applied by the first rod body 32 to the second rod body 33 acts on the side walls of the protrusions 36 and the grooves 37, thereby preventing the bolts from being subjected to the force along the third direction, preventing the bolts from being damaged, and improving the structural strength of the device.

[0037] When implementing it, Figure 3 As shown, the first end of the first rod body 32 is provided with a socket 38, the end of the supporting cross arm 1 is inserted into the socket 38, the first end of the second rod body 33 is connected to the second end of the first rod body 32 by bolts, and the second end of the second rod body 33 is provided with a hook 31.

[0038] The bearing removal tool of the present invention can be provided with a plug hole 38 at the first end of the first rod body 32 to facilitate the support cross arm 1 to be inserted into the plug hole 38, so as to improve the structural strength of the device.

[0039] Furthermore, a bearing removal tool also includes a driving mechanism 5, and a driving end of the driving mechanism 5 is used to be connected to the screw rod 2 to drive the screw rod 2 to rotate.

[0040] Exemplarily, the driving mechanism 5 may be a hydraulic cylinder 51 .

[0041] Specifically, the hydraulic cylinder 51 can be an electric hydraulic cylinder or a manual hydraulic cylinder. The operator can select the type of hydraulic cylinder 51 according to actual needs to provide power for the rotation of the screw 2, thereby reducing the labor intensity of the staff and improving the work efficiency of the staff.

[0042] It should be noted that, in the examples and description of the present utility model, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0043] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A bearing removal tool, characterized in that: include: A support cross arm extending in a first direction, wherein a threaded hole extending in a second direction is provided in the middle of the support cross arm, and the second direction is perpendicular to the first direction; A screw rod is disposed in the threaded hole, and the screw rod is threadedly connected to the threaded hole; Two pull rods extending along the second direction, the two pull rods are spaced apart at two ends of the support cross arm along the first direction, the first end of the pull rod is connected to the support cross arm, and the second end of the pull rod is provided with a hook; the pull rod comprises a first rod body and a second rod body connected in sequence along the second direction, and the relative position between the first rod body and the second rod body is adjustable to adjust the length of the pull rod; The locking member is disposed between the first rod body and the second rod body, and is used to lock the relative position between the first rod body and the second rod body.

2. The bearing removal tool according to claim 1, characterized in that: The first rod body is provided with a plurality of first connecting holes arranged in sequence and spaced apart along the second direction, and the second rod body is provided with a plurality of second connecting holes arranged in sequence and spaced apart along the second direction; the locking member is a bolt, and the bolt can pass through the first connecting hole and the second connecting hole in corresponding positions to connect the first rod body and the second rod body.

3. The bearing removal tool according to claim 2, characterized in that: A plurality of protrusions are provided on the side wall of the first rod body at intervals along the second direction, and a plurality of grooves are provided on the side wall of the second rod body at intervals along the second direction. The positions of the protrusions correspond to the positions of the grooves, and the protrusions can be inserted into the grooves corresponding to their positions.

4. The bearing removal tool according to claim 3, characterized in that: The first end of the first rod body is provided with an insertion hole, the end of the supporting cross arm is inserted into the insertion hole, the first end of the second rod body is connected to the second end of the first rod body through the bolt, and the second end of the second rod body is provided with a hook.

5. The bearing removal tool according to claim 1, characterized in that: It also includes a driving mechanism, which is connected to the screw rod and is used to drive the screw rod to rotate.

6. The bearing removal tool according to claim 5, characterized in that: The driving mechanism is configured as a hydraulic cylinder.

Images