A gear reducer bearing disassembly device

Abstract

This invention discloses a reducer bearing disassembly device, belonging to the technical field of disassembly devices. It includes a threaded screw rod, a conical positioning sleeve, a disassembler bracket, a threaded guide rod, a connecting rod, a tensioning column, a positioning sleeve, and bearing claws. The threaded screw rod is fixed to the center of the top of the disassembler bracket and can rotate. The rotation axis is coaxial with the center line of the disassembler bracket. The threaded screw rod has a through-hole with an internal thread. The threaded screw rod and the threaded guide rod are threadedly engaged. When the threaded screw rod is rotated clockwise or counterclockwise, the threaded guide rod can reciprocate along the rotation axis of the threaded screw rod. This invention solves the problem of difficulty in removing bearings from the bearing hole of the housing. The structure of this bearing disassembler allows for quick and convenient removal of bearings from the housing without damaging the housing or the bearing. Compared with commonly used disassembly tools and pullers in the industry, it has the advantages of compact structure, simple operation, convenient bearing disassembly, speed and efficiency, and guaranteed quality of disassembled parts.

Description

Technical Field

[0001] This invention belongs to the field of disassembly device technology, specifically a gearbox bearing disassembly device. Background Technology

[0002] Traditional tools used in the industry for disassembling bearings inside reducer housings are generally three-jaw (expanding core) pullers. This structure is not compact enough, is relatively cumbersome to operate, and the disassembly positioning force point is prone to slippage, which can easily damage the workpiece being disassembled. It requires two people to disassemble, resulting in low efficiency.

[0003] A tool for disassembling an inner bore bearing, patent number CN 217453779U, is a three-jaw type tool. The bearing is hooked by three claws in the center and supported by three outer support pillars. The bearing is pulled out of the inner bore by rotating the central screw. This tool is cumbersome to adjust before pulling out the bearing, requires manual assistance to stabilize the tool during the process to prevent displacement or slippage, requires two people to complete, and the support positions of the three outer support pillars can be affected by the complexity of the casing structure. Summary of the Invention

[0004] To address the above problems, this invention provides a reducer bearing disassembly device, comprising a threaded screw rod, a tapered positioning sleeve, a disassembler bracket, a threaded guide rod, a connecting rod, a tensioning column, a positioning sleeve, and bearing hooks. The threaded screw rod is fixed to the center of the top of the disassembler bracket and is rotatable. The rotation axis is coaxial with the center line of the disassembler bracket. The threaded screw rod has a through-hole with an internal thread. The threaded screw rod and the threaded guide rod are threadedly engaged. When the threaded screw rod is rotated clockwise or counterclockwise, the threaded guide rod reciprocates along the rotation axis of the threaded screw rod. This invention solves the problem of difficulty in removing bearings from the bearing hole in the housing. The structure of this bearing disassembler allows for quick and convenient removal of bearings from the housing without damaging the housing or the bearing. Compared to commonly used disassembly tools and pullers in the industry, it has the advantages of compact structure, simple operation, convenient bearing disassembly, speed and efficiency, and guaranteed quality of disassembled parts.

[0005] The technical solution of the present invention is as follows: a reducer bearing disassembly device, comprising: a reducer bearing disassembly device, including a threaded screw rod, a conical positioning sleeve, a disassembly bracket, a threaded guide rod, a connecting rod, a tensioning column, a positioning sleeve, and a bearing hook, wherein the threaded screw rod is fixed at the middle of the top of the disassembly bracket, the threaded screw rod is rotatable, the rotation axis is coaxial with the center line of the disassembly bracket, the center of the threaded screw rod is provided with a through internal threaded hole, the threaded screw rod and the threaded guide rod are threadedly engaged, when the threaded screw rod is rotated clockwise or counterclockwise, the threaded guide rod can reciprocate along the rotation axis of the threaded screw rod.

[0006] The disassembly bracket has two first through holes. The tensioning column passes through the first through holes and is fixed on the side wall of the disassembly bracket. The tensioning column is perpendicular to the connecting rod.

[0007] The threaded guide rod has a second through hole at its end inside the disassembly bracket. The connecting rod is fixed to the end of the threaded guide rod through the second through hole. The connecting rod is perpendicular to the threaded guide rod, and the threaded guide rod is perpendicular to the tensioning column.

[0008] The conical positioning sleeve is fixed inside the disassembly bracket by bolts. The conical positioning sleeve has a conical surface inside, which can hold the two bearing claws in an inverted conical structure.

[0009] One end of the bearing claw is inverted conical, and the bearing claw is provided with a fourth through hole. The connecting rod is connected to the bearing claw through the fourth through hole with clearance. There are two bearing claws, which are set on both sides of the threaded guide rod.

[0010] When the two bearing claws are engaged, a groove is formed at the engagement point.

[0011] The tensioning column can reciprocate relative to the bearing claw within the groove of the contact part of the bearing claw.

[0012] The connecting rod passes through the side wall of the positioning sleeve and is interference-fitted with the third through hole on the positioning sleeve. The positioning sleeve is located below the disassembly bracket.

[0013] Furthermore, the threaded rod is secured to the disassembly bracket by a pressure cap.

[0014] Furthermore, the groove is thicker at one end and thinner at the other.

[0015] Furthermore, the chute is funnel-shaped.

[0016] The beneficial effects of this invention are as follows:

[0017] This invention solves the problem of difficulty in removing bearings from the bearing bore of a housing. The bearing remover of this invention has a structure that allows for quick and convenient removal of bearings from the housing without damaging the housing or the bearing. Compared to commonly used disassembly tools and pullers in the industry, it has the advantages of compact structure, simple operation, convenient bearing removal, speed and efficiency, and guaranteed quality of disassembled parts. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the device of the present invention.

[0019] Figure 2 This is a schematic diagram of the threaded screw of the present invention.

[0020] Figure 3 This is a schematic diagram of the conical positioning sleeve of the present invention.

[0021] Figure 4 This is a schematic diagram of the disassembly bracket of the present invention.

[0022] Figure 5 This is a schematic diagram of the threaded guide rod of the present invention.

[0023] Figure 6 This is a schematic diagram of the connecting rod of the present invention.

[0024] Figure 7 This is a schematic diagram of the tensioning column of the present invention.

[0025] Figure 8 This is a schematic diagram of the positioning sleeve of the present invention.

[0026] Figure 9 This is a schematic diagram of the bearing hook of the present invention.

[0027] In the picture:

[0028] 1. Threaded screw rod, 2. Bolt, 3. Conical positioning sleeve, 4. Disassembly bracket, 5. Threaded guide rod, 6. Bolt, 7. Pressure cap, 8. Connecting rod, 9. Tensioning column, 10. Nut, 11. Positioning sleeve, 12. Bearing claw, 401 First through hole, 501 Second through hole, 1101 Third through hole, 1201 Fourth through hole. Detailed Implementation

[0029] It should be noted that in the description of this invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; a connection can be a mechanical connection or an electrical connection; a link can be a direct connection or an indirect connection through an intermediate medium, and can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] The technical solution of the present invention is as follows: a reducer bearing disassembly device, comprising: a reducer bearing disassembly device, including a threaded screw rod 1, a conical positioning sleeve 3, a disassembly bracket 4, a threaded guide rod 5, a connecting rod 8, a tensioning column 9, a positioning sleeve 11, and a bearing claw 12, wherein the threaded screw rod 1 is fixed at the middle of the top of the disassembly bracket 4, the threaded screw rod 1 is rotatable, the rotation axis is coaxial with the center line of the disassembly bracket 4, the threaded screw rod 1 has a through internal threaded hole at its center, the threaded screw rod 1 and the threaded guide rod 5 are threadedly engaged, when the threaded screw rod 1 is rotated clockwise or counterclockwise, the threaded guide rod 5 can reciprocate along the rotation axis of the threaded screw rod 1.

[0032] The disassembly bracket 4 is provided with two first through holes 401. The tensioning column 9 passes through the first through holes 401 and is fixed on the side wall of the disassembly bracket 4. The tensioning column 9 is perpendicular to the connecting rod 8.

[0033] The threaded guide rod 5 has a second through hole 501 at its end inside the disassembly bracket 4. The connecting rod 8 is fixed to the end of the threaded guide rod 5 through the second through hole 501. The connecting rod 8 is perpendicular to the threaded guide rod 5, and the threaded guide rod 5 is perpendicular to the tensioning column 9.

[0034] The conical positioning sleeve 3 is fixed inside the disassembly bracket 4 by bolts. The conical positioning sleeve 3 has a conical surface inside, which can hold the inverted conical structure of the two bearing claws 12.

[0035] One end of the bearing claw 12 is inverted tapered, and the bearing claw 12 is provided with a fourth through hole 1201. The connecting rod 8 is connected to the bearing claw 12 through the fourth through hole 1201 with clearance. There are two bearing claws 12, which are set on both sides of the threaded guide rod 5.

[0036] When the two bearing 12 hooks are engaged, a groove is formed at the engagement part.

[0037] The tensioning column 9 can reciprocate within the groove of the bearing claw 12 relative to the claw.

[0038] The connecting rod 8 passes through the side wall of the positioning sleeve 11 and is press-fitted with the third through hole 1101 on the positioning sleeve 11. The positioning sleeve 11 is located below the disassembly bracket 4.

[0039] The groove is thicker at one end and thinner at the other.

[0040] The chute is funnel-shaped.

[0041] Steps for disassembling the reducer housing bearing using a bearing remover:

[0042] Step one: First, rotate the threaded rod 1 counterclockwise. The threaded guide rod 5 moves downwards during the rotation of the threaded rod 1, which in turn pushes the bearing hook 12 downwards via the connecting rod 8, causing it to move downwards as shown. Figure 1Position. At this time, the upper conical surface of the bearing claw 12 is pressed tightly against the conical surface of the conical positioning sleeve 3, thereby causing the two bearing claws 12 to automatically merge together.

[0043] Step two: Vertically insert the bearing claw 12 of the bearing remover (in the combined state from Step one) into the bearing inner hole of the bearing to be removed on the housing, so that the lower end face of the positioning sleeve 11 is in contact with the upper end face of the bearing. Figure 1 .

[0044] Rotating the threaded rod 1 clockwise causes the lower end face of the positioning sleeve 11 to engage with the upper end face of the bearing, without any vertical displacement relative to the bearing. Meanwhile, the disassembly bracket 4 drives the tensioning column 9 downwards as the threaded rod rotates clockwise. When the tensioning column 9 moves into the inclined plane of the middle part of the bearing hook 12, it gradually and automatically separates the two closed bearing hooks to both sides until the tensioning column 9 moves into the vertical plane below the inclined plane between the two bearing hooks 12. At this point, the two bearing hooks 12 are separated to their maximum distance, and the lowermost hook, being spread open, hooks onto the lower end face of the bearing to be disassembled. At this time, the lower end face of the disassembly bracket 4 is pressed tightly against the end face of the bearing's inner bore and outer shell.

[0045] Continue turning the threaded rod 1 to the right. At this time, the disassembly bracket 4 cannot move further down because the end plane of the housing is tightly attached. Meanwhile, the bearing hook 12 hooks onto the lower end face of the bearing and moves upward relative to the disassembly bracket 4 and the positioning sleeve 10.

[0046] Continue turning the threaded rod 1 to the right. The bearing claw 12 hooks the lower end face of the bearing together with the positioning sleeve 11 and continues to move upward relative to the bracket 4 until the lower end face of the bearing is flush with the lower end face of the bracket 4. At this time, the bearing is completely removed from the bearing inner hole of the housing.

[0047] In summary, the above details the working steps and sequence of actions of the bearing remover. For the operator, the disassembly process consists of two steps: Step 1, turn the threaded rod 1 of the bearing remover counterclockwise, causing the bearing claw 12 to extend out of the lower end face of the remover bracket 4 and move it to the lowest position (at this point, the counterclockwise threaded rod reaches its limit and cannot be turned counterclockwise any further); Step 2, insert the bearing claw into the bearing inner hole on the housing, and turn the threaded rod 1 clockwise until the lower end face of the bearing is flush with the lower end face of the bracket 4, so that the bearing is completely removed from the inner hole of the housing.

[0048] This bearing remover can be easily operated by one person. The operation is simple and the remover is easy and reliable to position. The disassembly process will not slip or damage the workpiece, and the bearing can be removed in 1 minute.

[0049] This invention pertains to an auxiliary disassembly tool used in assembly processes. It is used to remove bearings press-fitted onto a reducer housing. Typical applications include troubleshooting and rework of reducer products, product review, and disassembly verification analysis during product design. It can also be used to disassemble bearings press-fitted onto similar housing structures.

[0050] The overall structure enables the bearing hooks to automatically achieve the working states of each step in the process: (1) Before disassembling the bearing, as the threaded rod rotates to the left, the hooks will automatically extend out of the inner hole of the disassembly device bracket, and the two bearing hooks will automatically close, reaching a closed state that allows them to enter the inner hole of the bearing; (2) During the disassembly of the bearing, the two bearing hooks will automatically open as the threaded rod rotates to the right, completely hooking the lower end face of the inner ring of the bearing. As the threaded rod continues to rotate to the right, the bearing will be automatically removed from the bearing hole of the housing.

[0051] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, and within the spirit and principles of the present invention, should be included within the scope of protection of the present invention. Furthermore, all content not described in detail in this specification is prior art known to those skilled in the art.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A reducer bearing disassembly device, characterized in that, include: The disassembler includes a threaded rod, a conical positioning sleeve, a disassembler bracket, a threaded guide rod, a connecting rod, a tensioning column, a positioning sleeve, and bearing claws. The threaded rod is fixed to the center of the top of the disassembler bracket and can rotate. Its rotation axis is coaxial with the center line of the disassembler bracket. The threaded rod has a through-hole with an internal thread. The threaded rod and the threaded guide rod are threaded together. When the threaded rod is rotated clockwise or counterclockwise, the threaded guide rod reciprocates along the rotation axis of the threaded rod. The disassembler bracket has two first through holes through which the tensioning column passes and is fixed to the side wall of the disassembler bracket. The tensioning column is perpendicular to the connecting rod. The threaded guide rod has a second through hole at its end inside the disassembler bracket, through which the connecting rod passes. Fixed to the end of the threaded guide rod, the connecting rod is perpendicular to the threaded guide rod, and the threaded guide rod is perpendicular to the tensioning column. The conical positioning sleeve is fixed inside the disassembler bracket by bolts. The conical positioning sleeve has a conical surface inside, which can hold the inverted conical structure of the two bearing claws. One end of the bearing claw is inverted conical, and the bearing claw has a fourth through hole. The connecting rod is connected to the bearing claw through the fourth through hole with clearance. There are two bearing claws, which are set on both sides of the threaded guide rod. When the two bearing claws are in contact, the contact part forms a groove. The tensioning column can reciprocate relative to the claw in the groove of the contact part of the bearing claw. The connecting rod passes through the side wall of the positioning sleeve and is interference-fitted with the third through hole on the positioning sleeve. The positioning sleeve is located below the disassembler bracket. Steps for disassembling the reducer housing bearing using a bearing remover: The S1 left-hand rotating threaded rod, through the downward movement of the threaded guide rod during the rotation of the threaded rod, in turn pushes the bearing claw downwards via the connecting rod, causing the upper conical surface of the bearing claw to press tightly against the conical surface of the conical positioning sleeve, thereby automatically merging the two bearing claws together. S2 vertically inserts the bearing claw of the bearing remover in the combined state of S1 into the bearing inner hole of the bearing to be removed on the housing, so that the lower end face of the positioning sleeve fits against the upper end face of the bearing. Rotate the threaded rod to the right. At this time, the lower end face of the positioning sleeve is in contact with the upper end face of the bearing. There is no vertical displacement relative to the bearing. The disassembly bracket drives the tensioning column to move down continuously as the threaded rod rotates to the right. When the tensioning column moves down into the inclined surface of the middle part of the bearing claw, it gradually separates the two closed bearing claws to both sides automatically until the tensioning column moves down into the vertical plane below the inclined surface between the two bearing claws. At this time, the two bearing claws are separated to the maximum distance. The lowermost claw of the bearing claw is opened and can hook the lower end face of the bearing to be disassembled. The lower end face of the disassembly bracket is pressed tightly against the end face of the bearing inner hole and outer shell. Continue turning the right-hand threaded rod. The disassembly bracket cannot move further down because the end plane of the housing is tightly attached. At this time, the bearing hook catches the lower end face of the bearing and moves upward relative to the disassembly bracket and the positioning sleeve. Continue turning the threaded rod clockwise. The bearing claw hooks onto the lower end face of the bearing along with the positioning sleeve, and continues to move upward relative to the bracket until the lower end face of the bearing is flush with the lower end face of the bracket. At this point, the bearing is completely removed from the bearing bore of the housing.

2. The reducer bearing disassembly device as described in claim 1, characterized in that, The threaded swivel is fixed to the disassembly bracket by a pressure cap.

3. The reducer bearing disassembly device as described in claim 1, characterized in that, The groove is thicker at one end and thinner at the other.

4. The reducer bearing disassembly device as described in claim 3, characterized in that, The chute is funnel-shaped.

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