Blind hole bearing dismounting device and dismounting method

Abstract

The present disclosure provides a blind hole bearing dismounting device and method, and relates to the technical field of bearing dismounting. The blind hole bearing dismounting device comprises a dismounting combination part, a locking mechanism and a dismounting rod. The dismounting combination part is used for connecting with an external part. The locking mechanism is connected with the dismounting combination part, and the locking mechanism keeps the dismounting combination part and the external part in a static connection state. The dismounting rod is connected with the locking mechanism, and the dismounting rod and the locking mechanism can move relative to each other, so that the dismounting rod and the dismounting combination part can move relative to each other. The blind hole bearing dismounting device and method of the present disclosure can realize the installation and dismounting of bearings of different models in a blind hole structure, and can realize both dismounting and mounting, thereby significantly improving the dismounting efficiency.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of bearing dismounting, and particularly relates to a blind hole bearing dismounting device and method. BACKGROUND

[0002] Since the bearing and the installation hole require interference fit, the bearing dismounting process under the blind hole structure is very difficult. In terms of installation, the assembly personnel usually uses the air pressure pushing or violent hammering way to install the bearing into the hole structure. However, the air pressure pushing way can be realized only with corresponding equipment, but some maintenance scenes and environments are not equipped with air pressure pushing devices. The violent hammering way is easy to damage the parts and reduce the service life of the bearing. In terms of dismounting, since the fulcrum for upward pulling cannot be obtained, the bearing in the blind hole structure is very difficult to dismount. In addition, there is a problem that the dismounting tool cannot be shared for different bearing models (inner hole diameter and outer hole diameter), which needs to be solved urgently. SUMMARY

[0003] The purpose of the present disclosure is to provide a blind hole bearing dismounting device and method, which can realize the installation and dismounting of different models of bearings in the blind hole structure.

[0004] The present disclosure provides a blind hole bearing dismounting device, comprising: a dismounting combination part for connecting with an external part; a locking mechanism connected with the dismounting combination part, the locking mechanism keeping the dismounting combination part and the external part in a static connection state; a dismounting rod connected with the locking mechanism, and the dismounting rod and the locking mechanism can move relative to each other, so that the dismounting rod and the dismounting combination part can move relative to each other.

[0005] Preferably, the locking mechanism comprises a screw rod, a fastening nut and a plurality of supports provided on the outer side of one end of the screw rod; wherein the screw rod is threadedly connected with the external thread provided on the dismounting rod through the internal thread provided on the inner side; and the fastening nut is threadedly connected with the external thread provided on the screw rod through the internal thread provided on the inner side.

[0006] Preferably, the dismounting combination part comprises a claw ring sleeved on the screw rod and capable of sliding relative to the screw rod; a plurality of claws, one end of the claw being capable of connecting with the external part, and the other end of the claw being rotationally connected with the claw ring; and a plurality of support rods, one end of the support rod being rotationally connected with the claw, and the other end of the support rod being rotationally connected with the support; wherein the fastening nut can move relative to the screw rod by abutting against the claw ring.

[0007] Preferably, the end of the claw in contact with the external component is the head of the claw, and the part of the claw other than the head is the body; the angle of connection between the body and the head is 150°; the head is chamfered in a circular arc, and the circular arc is 60°.

[0008] Preferably, the head of the claw is provided with a corrugated structure, and the corrugated structure is provided with a glue-like material.

[0009] Preferably, the claw is further provided with a hook device, the hook device comprising a first hanging arm, a second hanging arm and a bent hook; the bent hook comprises a first bend and a second bend; one end of the first hanging arm is connected to the body of the claw, the other end of the first hanging arm is connected to one end of the second hanging arm, and the other end of the first hanging arm or one end of the second hanging arm is provided with a baffle; the other end of the second hanging arm is connected to one end of the bent hook close to the first bend; and the first bend of the bent hook is rotationally connected to the head of the claw.

[0010] The present disclosure also provides a dismounting method of the blind hole bearing dismounting device, which uses the blind hole bearing dismounting device as described above and comprises the following steps: step one, the external component is a bearing, one end of the dismounting rod abuts against the bottom of the blind hole, the fastening nut is rotated to extend the plurality of claws, and the heads of the plurality of claws are tightly fitted with the inner wall of the bearing; step two, the dismounting rod is rotated, the screw rod is moved upward as the dismounting rod continuously presses downward, the claw drives the bearing to move upward, and the bearing is separated from the blind hole.

[0011] The present disclosure also provides a dismounting method of the blind hole bearing dismounting device, which uses the blind hole bearing dismounting device as described above and comprises the following steps: step one, the external component is a blind hole, one end of the dismounting rod abuts against one side of the bearing through a backing plate; step two, the fastening nut is rotated to extend the plurality of claws, and the heads of the plurality of claws are tightly fitted with the hole wall of the blind hole; step three, the dismounting rod is rotated, the backing plate is moved downward to move the bearing into the mounting hole of the blind hole as the dismounting rod continuously presses downward.

[0012] The present disclosure also provides a dismounting method of the blind hole bearing dismounting device, which uses the blind hole bearing dismounting device as described above and comprises the following steps: step one, the external component is a bearing, the hook device is pushed to rotate the bent hook to a state of hooking the bearing; step two, one end of the dismounting rod abuts against the bottom of the blind hole, the fastening nut is rotated to extend the plurality of claws, and the bent hook can hook the bottom of the bearing; step three, the dismounting rod is rotated, the screw rod drives the claw to move upward as the dismounting rod continuously presses downward, and the bent hook takes the bearing out of the blind hole.

[0013] The present disclosure also provides a dismounting method of the blind hole bearing dismounting device, which uses the blind hole bearing dismounting device as described above and comprises the following steps: step one, before installing the bearing, pulling the hook device to rotate the hook to the avoiding state; step two, one end of the dismounting rod abuts against one side of the bearing through the backing plate, rotating the fastening nut to make the plurality of claws extend, and the heads of the plurality of claws tightly abut against the hole wall of the blind hole; and step three, rotating the dismounting rod, continuously pressing the backing plate downward with the dismounting rod, and moving the backing plate downward to push the bearing into the installation hole of the blind hole.

[0014] The blind hole bearing dismounting device and the dismounting method provided by the present disclosure have the following beneficial effects: the installation and dismounting of bearings of different models in a blind hole structure can be realized, both dismounting and mounting can be realized, and the installation and dismounting efficiency is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a schematic view of a blind hole bearing dismounting device according to an embodiment of the present disclosure;

[0016] Figure 2 FIG. 2 is a schematic view of a locking mechanism of the blind hole bearing dismounting device according to an embodiment of the present disclosure;

[0017] Figure 3 FIG. 3 is a schematic view of a dismounting and mounting joint of the blind hole bearing dismounting device according to an embodiment of the present disclosure;

[0018] Figure 4 FIG. 4 is a schematic view of a claw of the locking mechanism according to an embodiment of the present disclosure;

[0019] Figure 5 FIG. 5 is a schematic view of a claw with a hook device of the locking mechanism according to an embodiment of the present disclosure;

[0020] Figure 6 FIG. 6 is another schematic view of a claw with a hook device of the locking mechanism according to an embodiment of the present disclosure;

[0021] Figure 7 FIG. 7 is a schematic view of a dismounted bearing of the blind hole bearing dismounting device according to an embodiment of the present disclosure;

[0022] Figure 8 FIG. 8 is a schematic view of an installed bearing of the blind hole bearing dismounting device according to an embodiment of the present disclosure;

[0023] Figure 9 FIG. 9 is another schematic view of a dismounted bearing of the blind hole bearing dismounting device according to an embodiment of the present disclosure;

[0024] Figure 10 FIG. 10 is another schematic view of an installed bearing of the blind hole bearing dismounting device according to an embodiment of the present disclosure.

[0025] In the diagram: 100 disassembly and assembly joint, 110 claw ring, 120 claw, 121 corrugated structure, 122 hook device, 1221 first hanging arm, 1222 second hanging arm, 1223 hook, 1224 baffle, 130 support rod, 200 locking mechanism, 210 screw, 220 fastening nut, 230 support, 300 disassembly and assembly rod, 400 pad, B bearing, P blind hole wall. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0027] like Figures 1 to 3 As shown, this embodiment of the present disclosure provides a blind bore bearing disassembly and assembly device, including: a disassembly and assembly joint 100 for connecting with an external component, the disassembly and assembly joint 100 being able to remain stationary with the external component; a locking mechanism 200 connected to the disassembly and assembly joint 100, the locking mechanism 200 keeping the disassembly and assembly joint 100 in a stationary connection state with the external component; and a disassembly and assembly rod 300 connected to the locking mechanism 200, the disassembly and assembly rod 300 being able to move relative to the locking mechanism 200, thereby allowing the disassembly and assembly rod 300 and the disassembly and assembly joint 100 to move relative to each other.

[0028] As an example, one end of the disassembly lever 300 is provided with an internal hexagonal structure and / or an external hexagonal structure, thereby enabling the disassembly lever 300 to be used with tools such as wrenches.

[0029] In the embodiments disclosed herein, such as Figure 2 Combination Figure 1 As shown, the locking mechanism 200 includes: a screw 210, a fastening nut 220, and a plurality of supports 230 disposed on the outer side of one end of the screw 210. The screw 210 is threadedly connected to the external thread of the disassembly rod 300 through an internal thread on its inner side; the fastening nut 220 is threadedly connected to the external thread of the screw 210 through an internal thread on its inner side.

[0030] Preferably, multiple supports 230 are evenly distributed circumferentially on the outer side of one end of the screw 210.

[0031] In the embodiments disclosed herein, such as Figure 3 Combination Figure 1 As shown, the disassembly and assembly joint 100 includes: a claw ring 110, which is sleeved on the screw 210 and can slide relative to the screw 210; a plurality of claws 120, one end of which can be connected to an external component, and the other end of which is rotatably connected to the claw ring 110; and a plurality of support rods 130, one end of which is rotatably connected to the claw 120, and the other end of which is rotatably connected to the support 230.

[0032] The fastening nut 220 can abut against the claw ring 110 and move relative to the screw rod 210, so that the claw ring 110 moves along the screw rod 210, and then the claw 120 also opens and closes different angles with the movement of the claw ring 110, so as to realize the claw 120 adapting to different types of bearings. Specifically, when the claw ring 110 moves upward along the screw rod 210, the claw 120 contracts; when the claw ring 110 moves downward along the screw rod 210, the claw 120 expands.

[0033] Preferably, the fastening nut 220 is a hexagonal flange nut, which can increase the contact area of the fastening nut 220 and the claw ring 110.

[0034] As an example, the other end of the claw 120 is connected with the claw ring 110 through a shaft; one end of the support rod 130 is connected with the claw 120 through a shaft, and the other end of the support rod 130 is connected with the support 230 through a shaft.

[0035] Preferably, the number of claws 120, support rods 130 and supports 230 is the same; specifically, one support rod 130 connects one claw 120 and one support 230. As an example, the number of claws 120, support rods 130 and supports 230 is 5.

[0036] In the embodiment of the present disclosure, as shown in Figure 4 The end of the claw 120 in contact with the external component is the head of the claw 120, and the part of the claw 120 other than the head is the body, and preferably, the connection angle between the body and the head is 150°. The head of the claw 120 is provided with a wave structure 121, which can increase the friction and biting force.

[0037] Preferably, the wave structure 121 is coated with a gel-like material, which can increase the stress area when extruded, thereby further increasing the friction when the claw 120 contacts the external component.

[0038] As an example, the head of the claw 120 adopts a circular arc chamfering mode, and preferably, the circular arc chamfering is 60°.

[0039] In the embodiment of the present disclosure, as shown in Figure 5 The claw 120 is also provided with a hook device 122.

[0040] Preferably, the hook device 122 is rotationally connected with the claw 120, so that the hook device 122 can rotate. Further, the hook device 122 is composed of a plurality of hook arms and hooks which are rotationally connected in sequence, so that the plurality of hook arms and hooks can rotate. As an example, the rotational connection can adopt shaft connection.

[0041] Preferably, the hook device 122 comprises a first hanging arm 1221, a second hanging arm 1222, and a hook 1223 comprising a first bend and a second bend; one end of the first hanging arm 1221 is connected to the body of the claw 120, the other end of the first hanging arm 1221 is connected to one end of the second hanging arm 1222, and a blocking piece 1224 is arranged on the other end of the first hanging arm 1221 or one end of the second hanging arm 1222; the other end of the second hanging arm 1222 is connected to one end of the hook 1223 close to the first bend, and the first bend of the hook 1223 is rotationally connected to the head of the claw 120. The hook 1223 is an integral structure.

[0042] The blocking piece 1224 is used to limit the size of the included angle a. As shown in Figure 5 When the included angle a between the first hanging arm 1221 and the second hanging arm 1222 is greater than 180° and gradually increases, the hook 1223 rotates counterclockwise. When the included angle a is greater than 180° and gradually decreases, the hook 1223 rotates clockwise. As shown in Figure 6 When the included angle a is equal to 180° and has a decreasing trend, the blocking piece 1224 causes the first hanging arm 1221 and the second hanging arm 1222 to be stuck, so that the rotation of the hook 1223 is stopped; the decreasing trend is 0°-5°. Rotating the hook 1223 can realize whether the tail of the hook 1223 exceeds the head of the claw 120; when the tail of the hook 1223 exceeds the head of the claw 120, the hook 1223 is used to hook the bearing, that is, the hook 1223 is in a hook bearing state; when the tail of the hook 1223 does not exceed the head of the claw 120, the hook 1223 is in a avoiding state.

[0043] As shown in Figure 7 The dismounting method of the blind hole bearing dismounting device provided by the embodiment of the present disclosure is as follows: (1) the external part is the bearing B, one end of the dismounting rod 300 abuts against the bottom of the blind hole, the fastening nut 220 is rotated to make the plurality of claws 120 extend, until the heads of the plurality of claws 120 are tightly attached to the inner wall of the bearing B; (2) the dismounting rod 300 is rotated by using a tool, the screw rod 210 is moved upward by continuously pushing downward of the dismounting rod 300, so that the claw 120 drives the bearing B to move upward, the bearing B is separated from the blind hole, and the dismounting of the bearing B is completed.

[0044] As shown in Figure 8As shown, this disclosure provides a method for installing a blind bore bearing using a blind bore bearing installation and removal device. The steps for installing a bearing using the blind bore bearing installation and removal device of this disclosure include: (1) The external component is the wall P of the blind bore. One end of the installation and removal rod 300 abuts against one side of the bearing B through the pad 400. The fastening nut 220 is rotated to extend the multiple claws 120, and the heads of the multiple claws 120 are tightly fitted with the wall P of the blind bore. (2) The installation and removal rod 300 is rotated using a tool. As the installation and removal rod 300 continuously presses the pad 400 downward, the pad 400 pushes the bearing B downward to move into the installation hole of the blind bore, thereby completing the installation of the bearing B.

[0045] As an example, the pad 400 is made of wood, iron plate, etc.

[0046] The following describes a method for disassembling and assembling bearings using a blind bore bearing disassembly and assembly device with a hook mechanism.

[0047] like Figure 9 As shown, this embodiment of the present disclosure provides a method for disassembling and assembling a blind hole bearing disassembly and assembly device. The steps of disassembling a bearing using a blind hole bearing disassembly and assembly device with a hook device include: (1) the external component is bearing B, push the hook 1223 to rotate it until the tail extends beyond the head of the claw 120, so that the hook 1223 is used to hook the bearing; (2) place one end of the disassembly and assembly rod 300 against the bottom of the blind hole, rotate the fastening nut 220 to extend the multiple claws 120 until the hook 1223 of the hook device 122 can hook the bottom of the bearing B; (3) use a tool to rotate the disassembly and assembly rod 300. As the disassembly and assembly rod 300 pushes downward, the screw 210 drives the claw 120 to move upward, and then the hook 1223 pulls the bearing B out of the blind hole, completing the disassembly of the bearing B.

[0048] Preferably, the hook 1223 hooks onto the bottom of the bearing B and the corrugated structure 121 fits tightly against the inner wall of the bearing B.

[0049] As an example, the hook 1223 can be rotated manually.

[0050] like Figure 10 As shown, this embodiment of the present disclosure provides a method for installing a blind hole bearing installation device, that is, the steps of installing a bearing using a blind hole bearing installation device with a hook device include: (1) before installing the bearing B, pull the hook device 122 to avoid the hole wall P, that is, the hook 1223 does not contact the hole wall P, that is, when installing the bearing B into the blind hole, the hook device 122 is not needed; (2) one end of the installation rod 300 abuts against one side of the bearing B through the pad 400, and the fastening nut 220 is rotated to extend the multiple claws 120, and the heads of the multiple claws 120 are tightly fitted with the hole wall P; (3) the installation rod 300 is rotated with a tool, and as the installation rod 300 continuously presses the pad 400 downward, the pad 400 pushes the bearing B downward to move into the installation hole of the blind hole, thereby completing the installation of the bearing B.

[0051] Thus far, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. It should be noted that the implementation manners not shown or described in the accompanying drawings or the main text are known to those skilled in the art, and are not described in detail. In addition, the definitions of the elements and methods described above are not limited to the various specific structures, shapes or manners mentioned in the embodiments, and can be simply changed or replaced by those skilled in the art.

[0052] According to the above description, those skilled in the art should have a clear understanding of the blind hole bearing dismounting device and dismounting method of the present disclosure.

[0053] In summary, the present disclosure provides a blind hole bearing dismounting device and dismounting method, which can effectively improve the installation and dismounting efficiency of the bearing, especially for the installation and dismounting of different types of bearings in the blind hole, which is more convenient and fast, and can realize both dismounting and mounting.

[0054] It should be further noted that the directional phrases mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", etc., are only the directions of the accompanying drawings, and are not intended to limit the protection scope of the present disclosure. When it may cause confusion to the understanding of the present disclosure, the conventional structures or configurations will be omitted. In addition, the shapes and sizes of the components in the drawings do not reflect the true size and ratio, but only illustrate the content of the embodiments of the present disclosure.

[0055] The ordinal numbers used in the specification and claims, such as "first", "second", "third", etc., are used to modify the corresponding elements, and do not mean that the elements have any ordinal number, nor represent the order of one element and another element, or the order of the manufacturing method. The use of these ordinal numbers is only to make the element with a certain name clearly distinguishable from another element with the same name.

[0056] In addition, unless specifically described or steps must occur in sequence, the order of the above steps is not limited to the above list, and can be changed or rearranged according to the desired design. In addition, the above embodiments can be mixed and used with each other or with other embodiments based on design and reliability considerations, that is, the technical features in different embodiments can be freely combined to form more embodiments.

[0057] The above only describes specific embodiments of the present disclosure and is not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A blind hole bearing dismounting device, characterized in that, The utility model relates to a blind hole bearing dismounting device, comprising: a dismounting and assembling part (100) for connecting with an external component; a locking mechanism (200) connected with the dismounting and assembling part (100), the locking mechanism (200) keeps the dismounting and assembling part (100) and the external component in a stationary connection state; a dismounting rod (300) connected with the locking mechanism (200), and the dismounting rod (300) can move relative to the locking mechanism (200), so that the dismounting rod (300) can move relative to the dismounting and assembling part (100); the locking mechanism (200) comprises a screw rod (210), a fastening nut (220) and a plurality of supports (230) arranged on the outer side of one end of the screw rod (210); wherein the screw rod (210) is threadedly connected with the external thread of the dismounting rod (300) through the internal thread arranged on the inner side; the fastening nut (220) is threadedly connected with the external thread of the screw rod (210) through the internal thread arranged on the inner side; the dismounting and assembling part (100) comprises: a claw ring (110) sleeved on the screw rod (210) and capable of sliding relative to the screw rod (210); a plurality of claws (120), one end of the claw (120) being capable of connecting with the external component, and the other end of the claw (120) being rotationally connected with the claw ring (110); a plurality of supporting rods (130), one end of the supporting rod (130) being rotationally connected with the claw (120), and the other end of the supporting rod (130) being rotationally connected with the support (230); wherein the fastening nut (220) can move relative to the screw rod (210) by abutting against the claw ring (110); the end of the claw (120) in contact with the external component is the head of the claw (120), and the part of the claw (120) other than the head is the body; the connection angle between the body and the head is 150°; the head adopts a circular arc chamfering mode, and the circular arc chamfering angle is 60°; the claw (120) is further provided with a hook device (122), and the hook device (122) comprises a first hanging arm (1221), a second hanging arm (1222) and a bent hook (1223); wherein the bent hook (1223) comprises a first bend and a second bend; one end of the first hanging arm (1221) is connected with the body of the claw (120), the other end of the first hanging arm (1221) is connected with one end of the second hanging arm (1222), a baffle (1224) is arranged on the other end of the first hanging arm (1221) or one end of the second hanging arm (1222), the other end of the second hanging arm (1222) is connected with one end of the bent hook (1223) close to the first bend, and the bent hook (1223) is rotationally connected with the head of the claw (120) at the bending position of the first bend.

2. A method of disassembling a blind hole bearing disassembling device, characterized by, The blind hole bearing dismounting device is used, and the steps comprise: step one: the external component is a bearing, the hook device (122) is pushed to rotate the bent hook (1223) to a state of hooking the bearing; Step two: one end of the dismounting rod (300) abuts against the bottom of the blind hole, and the fastening nut (220) is rotated to extend the plurality of claws (120), until the hook (1223) can hook the bottom of the bearing; Step three: the dismounting rod (300) is rotated, and the screw rod (210) drives the claws (120) to move upward, until the hook (1223) takes out the bearing from the blind hole.

3. A method of disassembling a blind bearing disassembling device, characterized by, The blind hole bearing dismounting device as claimed in claim 1 is used, and comprises the following steps: Step one: before the bearing is installed, the hook device (122) is pulled to rotate the hook (1223) to an avoiding state; Step two: one end of the dismounting rod (300) abuts against one side of the bearing through the backing plate (400), and the fastening nut (220) is rotated to extend the plurality of claws (120), and the heads of the plurality of claws (120) are closely combined with the hole wall of the blind hole; Step three: the dismounting rod (300) is rotated, and the dismounting rod (300) continuously presses the backing plate (400) downward, so that the backing plate (400) pushes the bearing to move downward to the installation hole of the blind hole.

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