Embedded bearing extractor

Abstract

The utility model relates to the technical field of dismounting tools, and discloses an embedded bearing extractor which comprises a connecting rod, a handle, a rammer and a tensioning assembly. One end of the connecting rod is connected with the handle, the other end of the connecting rod is connected with the tensioning assembly, and the rammer is of a hollow columnar structure, sleeves the connecting rod and can move between the handle and the tensioning assembly along a rod body of the connecting rod; the tensioning assembly comprises a connecting part, a plurality of clamping plate pairs and a plurality of adjusting pieces, and the distance between the clamping plates can be changed through the adjusting pieces. The embedded bearing extractor is simple and convenient to operate, and the dependence on the experience of operators is reduced; by adjusting the tensioning assembly, embedded bearings with different inner diameters can be adapted, and the universality is high; the force can be effectively controlled in the dismounting process, and the risk of damage to the bearing and equipment is reduced; and the structure is compact, operation in a narrow space in equipment is suitable, the bearing replacement efficiency is greatly improved, and the equipment maintenance time and the labor cost are saved.

Description

Technical Field

[0001] This utility model relates to the field of disassembly tools, specifically an embedded bearing remover. Background Technology

[0002] Embedded bearings are bearings in which part or all of the bearing is embedded inside the equipment component. They are also often called embedded bearings. Due to their unique structure and installation method, they are widely used in the transmission systems of various mechanical equipment assemblies to support rotating shafts or other moving parts, reduce friction and wear, and ensure the normal operation of the machinery.

[0003] During the maintenance of such mechanical equipment assemblies, it is often necessary to disassemble the embedded bearings and disassemble the assembly for further inspection and repair. Embedded bearings are typically installed in a compact space inside the equipment, tightly surrounded by other components. Ordinary disassembly tools are difficult to access, and the operating space is extremely limited. Furthermore, embedded bearings often use an interference fit with the shaft or bearing housing, resulting in a tight connection, requiring overcoming significant friction and bonding forces during disassembly. Traditional disassembly methods often employ tools such as sledgehammers and copper bars. During operation, the copper bar is placed against the inner ring of the bearing, and the sledgehammer is used to strike the copper bar, relying on the impact force to separate the bearing from the shaft. This disassembly method is difficult to control in terms of angles and relies heavily on the operator's experience, affecting replacement efficiency and easily damaging the bearing. Utility Model Content

[0004] To overcome the problems existing in related technologies, this utility model provides an embedded bearing remover with a relatively compact structure. It can extend into the narrow space inside the equipment to remove the bearing without having to consider the force and angle, which greatly improves the bearing replacement efficiency and avoids damage to the bearing.

[0005] The technical solution adopted by this utility model is as follows: an embedded bearing extractor, comprising: a connecting rod, a handle, a hammer, and a tensioning assembly. One end of the connecting rod is connected to the handle, and the other end of the connecting rod is connected to the tensioning assembly. The hammer is a hollow cylindrical structure, sleeved on the connecting rod, and can move along the connecting rod between the handle and the tensioning assembly.

[0006] The tensioning assembly includes a connecting part, several pairs of clamping plates, and several adjusting components. One end of the connecting part is connected to the connecting rod, and the other end of the connecting part is provided with the pairs of clamping plates. The pairs of clamping plates include a first clamping plate and a second clamping plate arranged opposite to each other. The first clamping plate is provided with a first through hole. The adjusting components include a first adjusting screw and a first nut. The first adjusting screw passes through the first nut and the first through hole and connects with the second clamping plate.

[0007] Furthermore, the end face of the connecting rod connected to the tensioning assembly has a protrusion, and the side of the protrusion has an external thread; the end face of the connecting part connected to the connecting rod has a recess, and the side of the recess has an internal thread; or, the end face of the connecting rod connected to the tensioning assembly has a recess in the middle, and the side of the recess has an internal thread; the end face of the connecting part connected to the connecting rod has a protrusion, and the side of the protrusion has an external thread; the connecting rod is threadedly connected to the connecting part.

[0008] Furthermore, the connecting rod and the connecting part are integrally formed.

[0009] Furthermore, the tensioning assembly includes a pair of clamping plates and an adjusting member. The first clamping plate and the second clamping plate are semi-circular clamping plates. The first clamping plate and the second clamping plate are arranged opposite each other with a gap. The gap gradually widens from the end near the connecting part to the end away from the connecting part.

[0010] Furthermore, the first clamping plate has a first semi-circular flange at the end away from the connecting part, and the second clamping plate has a second semi-circular flange at the end away from the connecting part. The first semi-circular flange and the second semi-circular flange form an annular flange with a gap, and the outer diameter of the annular flange is smaller than the inner diameter of the embedded bearing.

[0011] Furthermore, the hammer has a first impact part at one end near the handle, and a soft pad is provided on the side of the first impact part away from the handle.

[0012] Furthermore, the handle is provided with a second impact part on the side near the connecting part, which cooperates with the first impact part.

[0013] Furthermore, the hammer has anti-slip teeth in the middle for easy gripping.

[0014] Furthermore, it also includes a bearing housing fixing assembly, which includes a base, a first clamping part, a second clamping part, and a lead screw. The first clamping part and the second clamping part are disposed opposite to each other on the base. The first clamping part is fixedly connected to the base. The base is provided with a slide rail. The lead screw passes through the slide rail and is fixedly connected to the second clamping part. The second clamping part is slidably connected to the base.

[0015] This utility model of an embedded bearing extractor has the following technical advantages: (I) By setting up a structure of connecting rod, handle, and hammer, the operator only needs to push the hammer along the connecting rod to strike the handle, which can stably transmit the force to the tensioning component and the bearing. The hammer's movement trajectory along the connecting rod is stable, avoiding the problem of difficult angle control when using a traditional sledgehammer, making the operation process simpler and greatly reducing the experience requirements for the operator.

[0016] (ii) The tensioning assembly includes several clamping plate pairs and several adjusting components. By rotating the first adjusting screw, the distance between the first clamping plate and the second clamping plate is changed so that the tensioning assembly can hold embedded bearings of different inner diameters. Compared with traditional single-structure disassembly tools, it greatly improves versatility and meets the needs of disassembling embedded bearings during the maintenance of various mechanical equipment.

[0017] (III) Traditional sledgehammer strikes can easily damage bearings due to improper force control, and may even damage surrounding equipment components. This embedded bearing remover uses a hammer that moves along a connecting rod to strike the handle, generating impact force. Combined with a tensioning assembly, it locks the inner edge of the embedded bearing to disassemble it. During operation, the force can be more easily controlled without considering direction, avoiding excessive impact or uneven force on the bearing. This effectively reduces the risk of bearing damage during disassembly and also lowers the possibility of damage to other equipment components, ensuring the overall performance and service life of the equipment.

[0018] (iv) The embedded bearing extractor has a relatively compact structure and a reasonable layout of connecting rod, hammer, and tensioning assembly, allowing it to penetrate into narrow spaces inside equipment. The tensioning assembly can be flexibly adjusted to adapt to the bearing position, and the hammer is easy to move on the connecting rod, enabling disassembly operations to be carried out smoothly even in confined spaces. Compared with traditional tools, it significantly improves the operating efficiency in confined spaces and saves equipment maintenance time and labor costs.

[0019] Other features and advantages disclosed in this utility model will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of an embedded bearing extractor according to an exemplary embodiment (I).

[0022] Figure 2 This is a schematic diagram (II) of the overall structure of an embedded bearing remover according to an exemplary embodiment.

[0023] Figure 3 This is a schematic diagram of an embedded bearing extractor tensioning assembly structure according to an exemplary embodiment.

[0024] Figure 4 This is a schematic diagram of another embedded bearing extractor tensioning assembly structure according to an exemplary embodiment.

[0025] Figure 5This is a schematic cross-sectional view of an embedded bearing remover according to an exemplary embodiment.

[0026] Figure 6 This is a schematic cross-sectional view of another embedded bearing remover according to an exemplary embodiment.

[0027] Reference numerals: 10, Embedded bearing remover; 20, Connecting rod; 30, Handle; 31, Second impact part; 40, Hammer; 41, First impact part; 411, Soft pad; 42, Anti-slip teeth; 50, Tensioning assembly; 51, Connecting part; 52, Clamping plate pair; 521, First clamping plate; 5211, First semi-circular flange; 522, Second clamping plate; 5221, Second semi-circular flange; 53, Adjusting component; 531, First adjusting screw; 532, First nut; 61, Base; 62, First clamping part; 63, Second clamping part; 64, Lead screw; 70, Embedded bearing. Detailed Implementation

[0028] The specific embodiments disclosed herein will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this disclosure.

[0029] like Figures 1 to 4 The image shows a disclosed exemplary embodiment of the present invention. The embedded bearing extractor 10 of the present invention includes: a connecting rod 20, a handle 30, a hammer 40, and a tensioning assembly 50. One end of the connecting rod 20 is connected to the handle 30, and the other end of the connecting rod 20 is connected to the tensioning assembly 50. The hammer 40 is a hollow cylindrical structure, sleeved on the connecting rod 20, and can move along the body of the connecting rod 20 between the handle 30 and the tensioning assembly 50.

[0030] The tensioning assembly 50 includes a connecting part 51, a plurality of clamping plate pairs 52 and a plurality of adjusting members 53. One end of the connecting part 51 is connected to the connecting rod 20, and the other end of the connecting part 51 is provided with clamping plate pairs 52. The clamping plate pairs 52 include a first clamping plate 521 and a second clamping plate 522 arranged opposite to each other. The first clamping plate 521 is provided with a first through hole. The adjusting member 53 includes a first adjusting screw 531 and a first nut 532. The first adjusting screw 531 passes through the first nut 532 and the first through hole and connects with the second clamping plate 522.

[0031] This utility model's embedded bearing extractor 10 utilizes a linkage structure consisting of a connecting rod 20, a handle 30, and a hammer 40. When removing the embedded bearing 70, a tensioning assembly 50 holds the inner edge of the embedded bearing 70. Holding the hammer 40, the extractor pushes it along the connecting rod 20 towards the handle 30. The handle 30, under pressure, moves the connecting rod 20 in the direction of the hammer's impact, thus stably transmitting the impact force to the tensioning assembly 50 and the embedded bearing 70. The embedded bearing 70, embedded within the equipment component, gradually separates from the component under the impact force, allowing it to be removed from the equipment.

[0032] This utility model's embedded bearing extractor 10 employs a force-generating method where a hammer 40 strikes a handle 30. The hammer 40 moves stably along the connecting rod 20, avoiding the difficulty in controlling the angle when using a traditional sledgehammer. This simplifies the operation and significantly reduces the experience required of the operator. Traditional sledgehammer strikes can easily damage bearings due to improper force control, and may even damage surrounding equipment components. This embedded bearing extractor 10 utilizes the impact force generated by the hammer 40 moving along the connecting rod 20 to strike the handle 30, combined with the tensioning component 50 locking the inner edge of the embedded bearing 70 to disassemble the bearing. During operation, the force can be controlled more easily without considering direction, avoiding excessive impact or uneven force on the bearing. This effectively reduces the risk of bearing damage during disassembly and also reduces the possibility of damage to other equipment components, ensuring the overall performance and service life of the equipment.

[0033] For example, such as Figures 1 to 3 As shown, in an exemplary embodiment of this invention, the connecting rod 20 of the embedded bearing extractor 10 is integrally formed with the connecting portion 51. The tensioning assembly 50 includes a pair of clamping plates 52 and an adjusting member 53. The first clamping plate 521 and the second clamping plate 522 are semi-circular clamping plates, which are arranged opposite to each other with a gap. The gap gradually widens from the end near the connecting portion 51 to the end away from the connecting portion 51. This design allows the gap between the first clamping plate 521 and the second clamping plate 522 to be adjusted by the adjusting member 53, which is more conducive to holding embedded bearings 70 with different inner diameters. It also has a simple structure, is easy to manufacture, and has a low cost.

[0034] Furthermore, the first clamping plate 521 has a first semi-circular flange 5211 at the end away from the connecting part 51, and the second clamping plate 522 has a second semi-circular flange 5221 at the end away from the connecting part 51. The first semi-circular flange 5211 and the second semi-circular flange 5221 form an annular flange with a gap, and the outer diameter of the annular flange is smaller than the inner diameter of the embedded bearing 70. In actual operation of this embedded bearing extractor 10, firstly, according to the inner diameter of the embedded bearing 70, the distance between the first clamping plate 521 and the second clamping plate 522 is changed by rotating the first adjusting screw 531, so that the annular flange at the front end of the tensioning assembly 50 can extend into and pass through the embedded bearing 70. Then, the first adjusting screw 531 is rotated again to increase the distance between the first clamping plate 521 and the second clamping plate 522, so that the annular flange formed by the first semi-circular flange 5211 and the second semi-circular flange 5221 can lock the inner edge of the embedded bearing 70. Thus, when the operator holds the hammer 40 and pushes it along the connecting rod 20 to strike the handle 30, the impact force can be transmitted more stably to the tensioning assembly 50 and the embedded bearing 70, and the two will not separate.

[0035] For example, such as Figure 1 , Figure 2 As shown, in an exemplary embodiment of this invention, the hammer 40 of the embedded bearing extractor 10 has a first impact portion 41 at one end near the handle 30, and a soft pad 411 is provided on the side of the first impact portion 41 facing away from the handle 30. The hammer 40 has anti-slip teeth 42 in the middle for easy gripping. The handle 30 has a second impact portion 31 on the side near the connecting portion 51 that cooperates with the first impact portion 41.

[0036] The first impact part 41, located near the handle 30 of the hammer 40, is a crucial component for transmitting impact force. When disassembling the embedded bearing 70, the operator pushes the hammer 40 to strike the handle 30. The first impact part 41 directly contacts the handle 30, transferring the kinetic energy of the hammer 40 to the handle 30, which in turn drives the connecting rod 20 and the tensioning assembly 50 to act on the bearing, thus disassembling it. The soft pad 411, located on the side of the first impact part 41 facing away from the handle 30, cushions the impact force, preventing hand injury to the operator during the collision between the hammer 40 and the handle 30. In actual operation, the impact between the hammer 40 and the handle 30 generates a significant force; without the soft pad 411 for cushioning, the reaction force could easily injure the operator's hands.

[0037] The anti-slip serrations 42 in the middle of the hammer 40 significantly improve operational stability and safety. During frequent impacts of the hammer 40 against the handle 30, the operator's hands are prone to sweating or slipping due to force. The anti-slip serrations 42 increase the friction between the hand and the hammer 40, allowing the operator to grip the hammer 40 more firmly and stably.

[0038] The second impact part 31 on the side of the handle 30 near the connecting part 51 cooperates with the first impact part 41, playing a key role in the efficient transmission of impact force. When the first impact part 41 strikes the second impact part 31, the two fit tightly together, which can smoothly transmit the impact force of the hammer 40 along the connecting rod 20 to the tensioning assembly 50 and the bearing.

[0039] For example, such as Figure 2 As shown, in an exemplary embodiment of the present invention, the embedded bearing extractor 10 further includes a bearing seat fixing assembly. The bearing seat fixing assembly includes a base 61, a first clamping part 62, a second clamping part 63, and a lead screw 64. The first clamping part 62 and the second clamping part 63 are disposed opposite to each other on the base 61. The first clamping part 62 is fixedly connected to the base 61. The base 61 is provided with a slide rail. The lead screw 64 passes through the slide rail and is fixedly connected to the second clamping part 63. The second clamping part 63 is slidably connected to the base 61.

[0040] When removing the embedded bearing 70, and the bearing housing and equipment are relatively lightweight, the bearing housing fixing assembly provided by this utility model can be used to ensure more stable and smooth operation. This bearing housing fixing assembly provides a stable base platform via the base 61. During disassembly, the bearing housing is placed between the first clamping part 62 and the second clamping part 63. The lead screw 64 drives the second clamping part 63 to slide along the slide rail of the base 61, thereby firmly fixing the bearing housing. This effectively prevents the bearing housing from shaking or shifting due to force during the disassembly of the embedded bearing 70, ensuring the stability of the entire disassembly process, greatly improving the accuracy of the disassembly operation, and reducing the risk of bearing damage or damage to other equipment components due to bearing housing instability.

[0041] For example, such as Figure 5 , Figure 6 The following is another exemplary embodiment of the present invention. The end face of the connecting rod 20 of the embedded bearing extractor 10, which is connected to the tensioning assembly 50, has a protrusion with an external thread on its side. The end face of the connecting part 51, which is connected to the connecting rod 20, has a recess with an internal thread on its side. Alternatively, the middle portion of the end face of the connecting rod 20, which is connected to the tensioning assembly 50, has a recess with an internal thread on its side. The end face of the connecting part 51, which is connected to the connecting rod 20, has a protrusion with an external thread on its side. The connecting rod 20 and the connecting part 51 are threadedly connected.

[0042] The threaded connection between the connecting rod 20 and the connecting part 51 greatly facilitates the assembly and disassembly of the embedded bearing extractor 10. In equipment maintenance scenarios, maintenance personnel can easily connect and disconnect the connecting rod 20 and the tensioning assembly 50 using simple tools such as wrenches. When it is necessary to insert the embedded bearing extractor 10 into a confined space inside the equipment, the connecting rod 20 and the tensioning assembly 50 can be disassembled first, inserted separately, and then reassembled, reducing the difficulty of operation. During equipment maintenance, when disassembling embedded bearings 70 with different inner diameters, operators can quickly replace the tensioning assembly 50 with one of the appropriate diameter according to the specific inner diameter of the embedded bearing 70. If wear is found in the tensioning assembly 50, it can be easily removed and replaced with a new one using only simple tools, making the operation convenient and efficient.

[0043] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0044] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0045] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An in-line bearing extractor characterized by, The utility model relates to a tensioning device, comprising: a connecting rod, a handle, a hammer and a tensioning assembly, one end of the connecting rod is connected with the handle, the other end of the connecting rod is connected with the tensioning assembly, the hammer is a hollow columnar structure, is sleeved in the connecting rod and can move along the connecting rod between the handle and the tensioning assembly; the tensioning assembly comprises a connecting part, a plurality of clamping plate pairs and a plurality of adjusting pieces, one end of the connecting part is connected with the connecting rod, the other end of the connecting part is provided with the clamping plate pair, the clamping plate pair comprises oppositely arranged first clamping plate and second clamping plate, the first clamping plate is provided with a first through hole, and the adjusting piece comprises a first adjusting screw and a first nut, the first adjusting screw passes through the first nut and the first through hole and is connected with the second clamping plate.

2. The in-line bearing extractor of claim 1, wherein, One end surface of the connecting rod connected with the tensioning assembly is provided with a convex part, the side surface of the convex part is provided with external threads, one end surface of the connecting part connected with the connecting rod is provided with a concave part, the side surface of the concave part is provided with internal threads, or the middle part of one end surface of the connecting rod connected with the tensioning assembly is provided with a concave part, the side surface of the concave part is provided with internal threads, one end surface of the connecting part connected with the connecting rod is provided with a convex part, and the side surface of the convex part is provided with external threads; the connecting rod and the connecting part are screw-connected.

3. The in-line bearing extractor of claim 1, wherein, The connecting rod and the connecting part are integrally formed.

4. The in-line bearing extractor of claim 1, wherein, The tensioning assembly comprises a pair of clamping plate pairs and an adjusting piece, the first clamping plate and the second clamping plate are semicircular clamping plates, the first clamping plate and the second clamping plate are oppositely arranged and have a gap, and the gap gradually expands from one end close to the connecting part to one end away from the connecting part.

5. The insert bearing extractor of claim 4, wherein, The first clamping plate is provided with a first semicircular flange at one end away from the connecting part, the second clamping plate is provided with a second semicircular flange at one end away from the connecting part, the first semicircular flange and the second semicircular flange form a ring-shaped flange with a gap, and the outer diameter of the ring-shaped flange is smaller than the inner diameter of the embedded bearing.

6. The in-line bearing extractor of claim 1, wherein, The hammer is provided with a first impact part at one end close to the handle, and the surface of the first impact part away from the handle is provided with a soft pad.

7. The in-line bearing extractor of claim 6, wherein, The handle is provided with a second impact part on one side close to the connecting part, which cooperates with the first impact part.

8. The in-line bearing extractor of claim 1, wherein, The middle part of the hammer is provided with anti-slip tooth patterns for easy holding.

9. The in-line bearing extractor of claim 1, wherein, The utility model further comprises a bearing seat fixing assembly, the bearing seat fixing assembly comprises a base, a first clamping part, a second clamping part and a lead screw, the first clamping part and the second clamping part are oppositely arranged on the base, the first clamping part is fixedly connected with the base, the base is provided with a sliding rail, the lead screw passes through the sliding rail and is fixedly connected with the second clamping part, and the second clamping part is slidingly connected with the base.

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