A dismounting device

Abstract

This application discloses a disassembly device, relating to the field of mechanical equipment technology, to solve the problem that striking the inner ring of a bearing during disassembly can easily cause irreversible damage to the pump shaft and bearing. The disassembly device includes a fixing mechanism, a pressing mechanism, and two clamping members. The two clamping members are respectively connected to the fixing mechanism and interlock to form a limiting hole; at least one of the clamping members has a protrusion on its surface near the fixing mechanism, and the protrusion is located around the limiting hole. The pressing mechanism is connected to the fixing mechanism, with a portion located on the clamping member near the protrusion, and can reciprocate relative to the fixing mechanism along the axial direction of the limiting hole, extending into or out of the limiting hole. This disassembly device is used for disassembling bearings.

Description

Technical Field

[0001] This application relates to the field of mechanical equipment technology, and in particular to a disassembly device. Background Technology

[0002] During routine maintenance and upkeep of the oil pump, it is necessary to disassemble and inspect the rolling bearings of the oil pump to ensure reliable operation.

[0003] Generally, since the bearing and pump shaft are usually interference fit, it is necessary to use a copper rod and a hammer to strike the inner ring of the bearing to disassemble it.

[0004] However, striking the inner ring of the bearing can easily cause irreversible damage to the pump shaft and the bearing. Summary of the Invention

[0005] This application provides a disassembly device to solve the problem that striking the inner ring of a bearing with a copper rod can easily damage the pump shaft and the bearing.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides a disassembly device, including a fixing mechanism, a pressing mechanism, and two clamping members. The two clamping members are respectively connected to the fixing mechanism and interlock to form a limiting hole; at least one of the clamping members has a protrusion on its surface near the fixing mechanism, and the protrusion is located around the limiting hole. The pressing mechanism is connected to the fixing mechanism, a portion of which is located on the clamping member near the protrusion, and can reciprocate relative to the fixing mechanism along the axial direction of the limiting hole, extending into or out of the limiting hole.

[0008] According to the above-described technical means, this embodiment provides a disassembly device. Two clamping members are connected to a fixing mechanism, which provides an installation position for the two clamping members. The two clamping members are joined to form a limiting hole. At least one clamping member has a protrusion on its surface near the fixing mechanism, and the protrusion is located around the limiting hole. A pressing mechanism is fixed to the fixing mechanism, which provides an installation position for the pressing mechanism. The pressing mechanism is partially located on the clamping member near the protrusion. It can reciprocate relative to the fixing mechanism along the axial direction of the limiting hole, extending into or out of the limiting hole.

[0009] After the two clamping parts are joined on the side of the bearing away from the pump shaft end face, the pump shaft is located within the limiting hole, while the bearing is positioned between the clamping parts and the extrusion mechanism. When the extrusion mechanism extends towards the clamping parts along the axis of the limiting hole, the pump shaft end face is subjected to the force of the extrusion mechanism and moves backward relative to the fixing mechanism. The bearing is limited by the protrusion. As the extrusion mechanism extends, the pump shaft disengages from the limiting hole, and the bearing separates from the pump shaft, completing the bearing disassembly. During the disassembly process, only the inner ring of the bearing contacts the protrusion and is subjected to force, while the balls and the outer ring of the bearing are not subjected to force, thus avoiding bearing damage caused by force on the outer ring of the bearing.

[0010] Understandably, in order to ensure that the protrusion only abuts against the inner ring of the bearing, the size of the protrusion and the limiting hole can be designed according to the actual situation, as long as the limiting hole can allow the pump shaft to pass through and the protrusion can only abut against the inner ring of the bearing.

[0011] In some embodiments, the two clamps are detachably connected to each other.

[0012] According to the above technical means, when the disassembly device disassembles the bearing, the two clamping parts contact the bearing and are subjected to force respectively, and the two clamping parts connected to each other can make the bearing inner ring subjected to force evenly.

[0013] In some embodiments, the disassembly device further includes a first fastener that passes through one clamping member and is threadedly connected to another clamping member, the two clamping members being connected to each other by the first fastener.

[0014] Based on the above technical means, the two clamping parts are connected by threads, which is simple in structure, reliable in connection and easy to disassemble.

[0015] In some embodiments, the two ends of the protrusions on the two clamping members abut against each other and are arranged around the outer edge of the limiting hole.

[0016] According to the above technical means, the protrusion is designed to be annular, which has a large force-bearing area when in contact with the inner ring of the bearing, and the inner ring of the bearing is subjected to uniform force.

[0017] In some embodiments, the protrusion has a sidewall; the sidewall is inclined, with one end connected to the surface of the clamping member near the fixing mechanism, and the other end gradually approaching the axis of the limiting hole.

[0018] According to the above technical means, the diameter of the protruding end of the protrusion is smaller than the diameter of the inner ring of the bearing. The side wall is set so that the area of ​​connection between the protrusion and the clamping part is larger, the contact area is large and the force is even.

[0019] In some embodiments, the fixing mechanism includes a fixing plate, a pressing mechanism disposed on one side of the fixing plate, and a plurality of connecting rods, at least a portion of which are located on the side of the fixing plate near the pressing mechanism, one end of which is connected to the fixing plate, and the other end of which is connected to two clamping members respectively.

[0020] According to the above technical means, the two clamping members are connected to the fixing mechanism through multiple connecting rods, and the pressing mechanism is set between the fixing plate and the two clamping members. The multiple connecting rods are respectively connected to the two clamping members, so that the structure formed by splicing the two clamping members is stress-balanced.

[0021] In some embodiments, the fixing mechanism further includes a plurality of second fasteners, which are threadedly connected to the connecting rods; the plurality of connecting rods and the fixing plate are interconnected by the plurality of second fasteners.

[0022] Based on the above technical means, the fixing plate and multiple connecting rods are set to be detachable. The detachable connection facilitates the movement and transportation of the disassembly device, and also facilitates the replacement of parts in case of failure or damage.

[0023] In some embodiments, the fixing mechanism further includes a third fastener that passes through the fixing plate and is threadedly connected to the extrusion mechanism; the fixing plate and the extrusion mechanism are connected to each other by the third fastener.

[0024] According to the above technical means, the extrusion mechanism is fixed to the fixed plate by the third fastener to prevent the extrusion mechanism from deviating from the axis of the limiting hole when it is under working force.

[0025] In some embodiments, a groove is provided on the side of the fixing plate near the surface of the clamping member, and the pressing mechanism is disposed in the groove.

[0026] According to the above technical means, the extrusion mechanism is set in the groove, which makes it easy for the extrusion mechanism to be aligned and easy to fix the extrusion mechanism with the third fastener.

[0027] In some embodiments, the compression mechanism includes a jack.

[0028] Based on the aforementioned technical means, jacks are typically equipped with safety valves and height limit controls to prevent overloading and exceeding the travel limit. They are also compact, lightweight, and easy to carry. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a disassembly device provided in an embodiment of this application;

[0030] Figure 2 A partial enlarged view of a disassembly device provided in an embodiment of this application;

[0031] Figure 3 This is a structural cross-sectional view of a disassembly device provided in an embodiment of this application;

[0032] Figure 4 This is a schematic diagram of the structure of the clamping parts of a disassembly device provided in an embodiment of this application.

[0033] Figure label:

[0034] 100-Disassembly device; 1-Fixing mechanism; 11-Fixing plate; 111-Groove; 112-First screw hole; 113-First through hole; 12-Connecting rod; 13-Second fastener; 14-Third fastener; 2-Extrusion mechanism; 3-Clamping component; 31-Protrusion; 32-Notch; 33-Second through hole; 34-Second screw hole; 35-Third screw hole; 4-Limiting hole; 5-First fastener; 200-Bearing; 201-Bearing inner ring; 202-Ball; 203-Bearing outer ring; 300-Pump shaft. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "center", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0038] In the description of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "multiple" means two or more.

[0039] In embodiments of this application, 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 a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0040] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0041] This application provides a disassembly device, such as... Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of a disassembly device 100 provided in an embodiment of this application. The disassembly device 100 may include a fixing mechanism 1, a pressing mechanism 2, and two clamping members 3. The pressing mechanism 2 is connected to the fixing mechanism 1. The two clamping members 3 are respectively connected to the fixing mechanism 1, and are joined together to form a limiting hole 4. At least one clamping member 3 has a protrusion 31 formed on its surface near the fixing mechanism 1, and the protrusion 31 is located around the limiting hole 4. A portion of the pressing mechanism 2 is located on the side of the clamping member 3 near the protrusion 31, and can reciprocate relative to the fixing mechanism 1 along the axial direction of the limiting hole 4, extending into or out of the limiting hole 4.

[0042] The disassembly device 100 provided in this embodiment consists of two clamping members 3 connected to a fixing mechanism 1, which are joined to form a limiting hole 4. The diameter of the limiting hole 4 is larger than the diameter of the pump shaft 300 but smaller than the diameter of the bearing inner ring 201. The protrusion 31 is located on the periphery of the limiting hole 4. When the two clamping members 3 are joined on the side of the bearing 200 away from the end face of the pump shaft 300, the pump shaft 300 is located inside the limiting hole 4, while the bearing 200 is located between the clamping members 3 and the pressing mechanism 2. When the pressing mechanism 2 extends towards the clamping members 3 along the axial direction of the limiting hole 4, the pump shaft 300 is subjected to the force of the pressing mechanism 2 and moves backward relative to the fixing mechanism 1. The bearing 200 is limited by the protrusion 31. As the pressing mechanism 2 continues to extend, the pump shaft 300 disengages from the limiting hole 4, and the bearing 200 and the pump shaft 300 separate, completing the disassembly of the bearing 200. During disassembly, since the protruding end of the protrusion 31 is smaller than the diameter of the bearing inner ring 201, only the bearing inner ring 201 contacts the protrusion 31 and is subjected to force, while the ball 202 and the bearing outer ring 203 are not subjected to force, thus avoiding damage to the bearing 200 caused by the bearing outer ring 203 being subjected to force.

[0043] Understandably, in order to ensure that the protrusion 31 abuts only against the inner ring 201 of the bearing, the size of the protrusion 31 and the limiting hole 4 can be designed according to the actual situation, as long as the limiting hole 4 can allow the pump shaft 300 to pass through and the protrusion 31 can abut only against the inner ring 201 of the bearing.

[0044] In some embodiments, such as Figure 4 As shown, the two clamping members 3 are detachably connected to each other. When the disassembly device 100 disassembles the bearing 200, the two clamping members 3 respectively contact and bear force with the inner ring 201 of the bearing. The two clamping members 3 connected to each other can make the inner ring 201 of the bearing bearer bear force evenly. Of course, the two clamping members 3 may also be unconnected to each other.

[0045] Of course, in other embodiments, there may be multiple clamping members 3, which are connected to the fixing mechanism 1 respectively and spliced ​​together to form the limiting hole 4.

[0046] Of course, in other embodiments, the clamping member 3 can be spliced ​​into a whole ring, with the limiting hole 4 at the center of the ring.

[0047] In some embodiments, the disassembly device 100 further includes a first fastener 5, which passes through one clamping member 3 and is threadedly connected to another clamping member 3. The two clamping members 3 are connected to each other through the first fastener 5. The threaded connection structure is simple, reliable, and easy to disassemble. Of course, the first fastener 5 can be a screw.

[0048] Of course, in other embodiments, notches 32 can be provided on the two clamping members 3. The notches 32 are radially provided from the edge of the clamping member 3 along the limiting hole 4. A second through hole 33 is provided at the splicing position of the notch 32 of one clamping member 3 and the other clamping member 3. A second screw hole 34 is provided at the position corresponding to the second through hole 33 of the other clamping member 3. The two clamping members 3 can be detached and connected by the first fastener 5.

[0049] Of course, in other embodiments, the two clamping members 3 can also be connected by a clamp. The clamp should have a reverse side, which hooks the edges of the two clamping members 3 to prevent the clamp from coming off when the two clamping members 3 are subjected to force.

[0050] In some embodiments, the two ends of the protrusions 31 on the two clamping members 3 abut against each other and are arranged around the outer edge of the limiting hole 4. The protrusions 31 are annular, so that when the two clamping members 3 are spliced ​​on the side of the bearing 200 away from the pump shaft 300 end face, the protrusions 31 only contact the inner ring 201 of the bearing and not the outer ring 203 of the bearing, thus avoiding damage to the bearing 200 due to force. Of course, in order to ensure the strength of the protrusions and to consider the portability of the disassembly device, the height of the protrusions 31 can be set to 3mm-10mm.

[0051] Of course, in other embodiments, the two ends of the protrusion 31 may not abut against each other, or may be set as protrusions arranged along the circumference of the limiting hole 4. In this case, the protrusion 31 can still preferentially contact the inner ring 201 of the bearing to receive force, and will not contact the ball 202 and the outer ring 203 of the bearing to receive force.

[0052] In some embodiments, the protrusion 31 has a sidewall, which is inclined and has one end connected to the surface of the clamping member 3 near the fixing mechanism 1, while the other end gradually approaches the axis of the limiting hole 4. The protruding end of the protrusion 31 is smaller than the diameter of the bearing inner ring 201. The sidewall on the protrusion 31 increases the contact area between the protrusion 31 and the clamping member 3, resulting in a larger contact area and more uniform force distribution. Of course, the protrusion 31 can also have a chamfered outer edge.

[0053] In some embodiments, the fixing mechanism 1 includes a fixing plate 11 and a plurality of connecting rods 12. A pressing mechanism 2 is disposed on one side of the fixing plate 11. At least a portion of the plurality of connecting rods 12 is located on the side of the fixing plate 11 near the pressing mechanism 2, with one end connected to the fixing plate 11 and the other end connected to two clamping members 3 respectively. The two clamping members 3 are connected to the fixing mechanism 1 via the plurality of connecting rods 12. The pressing mechanism 2 is disposed between the fixing plate 11 and the two clamping members 3, and the plurality of connecting rods 12 are respectively connected to the two clamping members 3, so that the structure formed by the splicing of the two clamping members 3 is stress-balanced.

[0054] Of course, in other embodiments, such as Figure 4As shown, a third screw hole 35 penetrating the thickness direction of the clamping member 3 can be provided on the clamping member 3. Multiple connecting rods 12 are screws, and the direction of the connecting rods 12 is along the axis of the limiting hole 4. The third screw hole 35 is symmetrically arranged on the two clamping members 3, and the connecting rods 12 form a symmetrical connection with the clamping member 3 through the third screw hole 35, ensuring stable force distribution. Of course, the third screw hole 35 can also be arranged asymmetrically.

[0055] Of course, in other embodiments, there may be only one connecting rod 12. In this case, the connecting rod 12 is a hollow structure, and a part of the extrusion mechanism 2 is located in the hollow structure. The two clamping members 3 are respectively connected to the connecting rod 12. In this way, the force balance of the surface formed by the splicing of the two clamping members 3 can still be maintained.

[0056] In some embodiments, the fixing mechanism 1 further includes a plurality of second fasteners 13, which are threadedly connected to the connecting rods 12. The plurality of connecting rods 12 and the fixing plate 11 are interconnected by the plurality of fasteners 13. The plurality of connecting rods 12 and the fixing plate 11 are configured to be detachably connected, which facilitates the movement and transportation of the disassembly device 100 and also facilitates the replacement of parts in case of failure or damage. Of course, the fixing mechanism 1 may also not include the plurality of second fasteners 13, and the fixing plate 11 and the plurality of connecting rods 12 may be configured to be non-detachably connected.

[0057] Of course, in other embodiments, such as Figure 3 As shown, the second fastener 13 can be a nut. The fixing plate 11 is provided with a first through hole 112. After the connecting rod 12 passes through the first through hole 112, the fixing plate 11 is limited on the connecting rod 12 by the second fastener 13.

[0058] In some embodiments, the fixing mechanism 1 further includes a third fastener 14, which passes through the fixing plate 11 and is threadedly connected to the extrusion mechanism 2. The fixing plate 11 and the extrusion mechanism 2 are interconnected by the third fastener 14. The extrusion mechanism 2 is fixed to the fixing plate 11 by the third fastener 14 to prevent the extrusion mechanism 2 from deviating from the axial direction of the limiting hole 4 when it is under working force. Of course, a first screw hole 112 can be provided on the fixing plate 11, through which the third fastener 14 passes and is threadedly connected to the extrusion mechanism 2.

[0059] Of course, in other embodiments, the fixing plate 11 and the pressing mechanism 2 can also be fixed by means of snap-fit, pin, riveting, etc.

[0060] In some embodiments, such as Figure 3 As shown, a groove 111 is provided on the side of the fixing plate 11 near the surface of the clamping member 3, and the pressing mechanism 2 is disposed in the groove 111. The groove 111 is provided to facilitate the positioning of the pressing mechanism 2 and to facilitate the use of the third fastener 14 to fix the pressing mechanism 2.

[0061] Of course, in other embodiments, the side of the fixing plate 11 near the surface of the clamping member 3 may also be provided with a mechanism such as protrusions to mark the position of the extrusion mechanism 2, so as to facilitate the extrusion mechanism 2 to find the correct position.

[0062] In some embodiments, the compression mechanism 2 may be a jack. Jacks are typically equipped with safety valves and height limit controls to prevent overloading and use beyond their stroke, while also being compact, lightweight, and easy to carry.

[0063] Of course, in other embodiments, the extrusion mechanism 2 may also be a telescopic hydraulic cylinder, a hand-cranked pump, or other similar equipment.

[0064] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A disassembly device for disassembling a bearing, characterized in that, The disassembly device includes: Fixed mechanism; The extrusion mechanism is connected to the fixing mechanism; and, Two clamping members are respectively connected to the fixing mechanism and are spliced ​​together to form a limiting hole; at least one of the clamping members has a protrusion on the surface near the fixing mechanism, and the protrusion is located around the limiting hole; A portion of the extrusion mechanism is located on the side of the clamping member near the protrusion, and can reciprocate relative to the fixing mechanism along the axial direction of the limiting hole, extending into or out of the limiting hole.

2. The disassembly device according to claim 1, characterized in that, The two clamping members are detachably connected to each other.

3. The disassembly device according to claim 2, characterized in that, The disassembly device further includes: A first fastener passes through one of the clamping members and is threadedly connected to the other clamping member; the two clamping members are connected to each other via the first fastener.

4. The disassembly device according to claim 1, characterized in that, The two ends of the protrusions on the two clamping members abut against each other and are arranged around the periphery of the limiting hole.

5. The disassembly device according to claim 4, characterized in that, The protrusion has a sidewall; the sidewall is inclined, with one end connected to the surface of the clamping member near the fixing mechanism, and the other end gradually approaching the axis of the limiting hole.

6. The disassembly device according to claim 1, characterized in that, The fixing mechanism includes: A fixed plate, wherein the pressing mechanism is disposed on one side of the fixed plate; and, Multiple connecting rods, at least a portion of which are located on the side of the fixed plate near the extrusion mechanism, with one end connected to the fixed plate and the other end connected to two of the clamping members respectively.

7. The disassembly device according to claim 6, characterized in that, The fixing mechanism also includes: Multiple second fasteners are provided, which are threadedly connected to the connecting rod; the connecting rod and the fixing plate are interconnected via the second fasteners.

8. The disassembly device according to claim 7, characterized in that, The fixing mechanism also includes: The third fastener passes through the fixed plate and is threadedly connected to the extrusion mechanism; the fixed plate and the extrusion mechanism are interconnected through the third fastener.

9. The disassembly device according to claim 8, characterized in that, The fixing plate has a groove on the side near the surface of the clamping member, and the pressing mechanism is disposed in the groove.

10. The disassembly device according to claim 1, characterized in that, The extrusion mechanism includes a jack.

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