A bearing disassembly device and a bearing disassembly method

Abstract

The present invention discloses a bearing disassembly device and a bearing disassembly method. Multi-point positioning is achieved by means of a plurality of support members and a push rod respectively cooperating with the shaft. During the process of disassembling the bearing, the shaft can always maintain the expected extension direction, reducing the possibility of deviation, and will not cause damage to the shaft or the bearing. Moreover, while positioning the shaft by the push rod, the push rod can also provide a resistance to limit the movement of the shaft along its own axis direction, ensuring that the shaft will not move synchronously with the bearing when disassembling the bearing. In addition, the push rod can move along the axis direction of the shaft. After the bearing is separated from the shaft, the push rod can be used as a buffer rod, so that the bearing can be temporarily sleeved on the push rod. After the push rod withdraws from positioning and restricting the shaft, the push rod can unload the bearing to the expected position while resetting, avoiding the phenomenon that the bearing flies away without restriction after being pushed out. Moreover, multiple bearings can be disassembled simultaneously during the disassembly process, greatly improving the disassembly efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical fibers, and particularly relates to a bearing disassembly device and a bearing disassembly method. Background Art

[0002] A texturing machine is a textile machine that can process non-twisted filaments such as polyester and polypropylene into elastic filaments with medium or low elastic properties through false twist deformation. There are many motors on the texturing machine, and each motor has a corresponding shaft and a bearing that cooperates with the shaft. During maintenance, it is necessary to disconnect the shaft from the bearing, that is, to remove the bearing from the shaft, remove the damaged or defective shaft or bearing, and then replace it with a new bearing or shaft.

[0003] Currently, the methods for removing the bearing from the shaft include:

[0004] (1) The heating method: The bearing is subjected to an expansion diameter treatment by heating, and then a bearing disassembly tool using a puller is used to pull down the bearings one by one; however, this method will cause the grease inside the bearing to deteriorate and the grease to flow out, affecting the lubrication effect of the bearing, shortening the service life of the bearing, and making there a risk of damage to the bearings that are okay.

[0005] (2) Directly using a disassembly tool for cold disassembly and assembly. Since the bearing has a relatively large area in the radial direction, generally, the bearing is fixed, and then an external force is applied to the shaft to push the shaft out of the bearing; however, this method has the following problems:

[0006] ①. When the external force is applied to the shaft, the bearing is easily driven to rotate or slide and shift, resulting in uneven force on the shaft when the shaft is pushed out. This may cause damage to the shaft or the bearing, and may also force an increase in the resistance, making it difficult to push out the shaft under the preset external force. If the external force is further increased, on the one hand, the operation difficulty is increased, and the requirements for the equipment providing the external force are relatively high; on the other hand, it may also cause damage to the shaft or the bearing.

[0007] ②. Generally, for an assembly with multiple bearings arranged on one shaft, the existing tools can only disassemble one bearing at a time, making the disassembly process time-consuming and inefficient; for example, Chinese Utility Model Patent CN205453425U discloses a bearing disassembly and assembly tool for a small motor of a texturing machine. When disassembling the small motor of the texturing machine, the motor bearing is stuck at the opening, with the motor bearing on top and the rotor below, and a press is pressed on the motor shaft, and the front and rear bearings can be removed separately in two times. Summary of the Invention

[0008] The object of the present invention is to overcome one or more deficiencies in the prior art, and provide an improved bearing disassembly device that can be applicable to simultaneous disassembly of multiple bearings, has a good disassembly effect, and can avoid unexpected damage to the shaft or the bearing.

[0009] The present invention also provides a method for disassembling a bearing, which uses the above-mentioned bearing disassembly device to disassemble the bearing.

[0010] To achieve the above object, a technical solution adopted by the present invention is:

[0011] A bearing disassembly device for disassembling an assembly formed by a shaft and at least one bearing provided on the shaft, the bearing disassembly device comprising:

[0012] A shaft support seat having at least two support members, each of the support members being respectively used to support different positions on the shaft along its own axis direction;

[0013] A ejector rod assembly including an ejector rod capable of restricting the movement of the shaft along its own axis direction, and the ejector rod being capable of moving along the axis direction of the shaft;

[0014] A pushing-away mechanism including a movably arranged pushing-away member;

[0015] The bearing disassembly device includes a first state, a second state and a third state. When the bearing disassembly device is in the first state, the pushing-away member and the support member are away from each other, and the axis of the ejector rod is parallel to the axis of the shaft;

[0016] When the bearing disassembly device is in the second state, the pushing-away member and the support member are close to each other, the axis of the ejector rod coincides with the axis of the shaft, the ejector rod abuts against the shaft, and the pushing-away member can act on the end face extending in the radial direction of the bearing and can move the at least one bearing from the shaft to the ejector rod respectively;

[0017] When the bearing disassembly device is in the third state, the pushing-away member is away from the support member and close to the ejector rod, and the at least one bearing can be sleeved on the ejector rod.

[0018] According to some preferred aspects of the present invention, the pushing-away member is movably arranged along the axis direction of the ejector rod, and the shaft support seat is movably arranged along a direction perpendicular to the axis direction of the ejector rod.

[0019] In some embodiments of the present invention, the shaft support seat includes a first position and a second position arranged in sequence along a direction perpendicular to the axis of the shaft;

[0020] When the bearing disassembly device is in the first state, the shaft support seat is located at the first position;

[0021] When the bearing disassembly device is in the second state or the third state, the shaft support seat is located at the second position;

[0022] The push-off component comprises a first station and a second station which are sequentially arranged along the axis direction of the shaft;

[0023] When the bearing disassembly device is in the first state or the second state, the push-off component is located at the first position;

[0024] When the bearing disassembly device is in the third state, the push-off component is located at the second station.

[0025] According to some preferred aspects of the present invention, the bearing disassembly device further comprises a bearing drop-out opening, and a blocking member disposed beside the bearing drop-out opening and formed with a clearance hole, wherein the clearance hole allows the ejector rod to pass freely and prevents the bearing from passing through;

[0026] The push rod has an extended state and a retracted state. When the push rod is in the extended state, the push rod passes through the clearance hole and is partially located directly above the bearing drop-out opening, and the push rod can rest against the shaft; when the push rod is in the retracted state, the push rod is away from the shaft, the push rod withdraws from the clearance hole and is away from directly above the bearing drop-out opening.

[0027] According to some preferred aspects of the present invention, the bearing disassembly device also includes a first displacement mechanism for driving the shaft support seat to be displaced, a second displacement mechanism for driving the push-off component to be displaced, and a third displacement mechanism for driving the push rod to move, and the first displacement mechanism, the second displacement mechanism, and the third displacement mechanism are respectively located on different sides of the bearing disassembly device.

[0028] According to some preferred aspects of the present invention, a positioning groove is formed on the shaft, and a protrusion is formed on the end of the push rod for abutting against the shaft, the shape of the protrusion is adapted to the positioning groove, and the protrusion can be inserted into the positioning groove.

[0029] According to the present invention, in some embodiments, the bearing disassembly device further includes a fourth state. When the bearing disassembly device is in the fourth state, the push rod is away from the shaft, and the at least one bearing is detached from the push rod respectively.

[0030] According to some preferred aspects of the present invention, the support member includes a support body and a first inclined surface, a second inclined surface and a recessed portion formed on the support body, the first inclined surface and the second inclined surface are symmetrically arranged and together constitute a load-bearing limit space that supports and limits the radial movement of the axis, and the recessed portion is located below the load-bearing limit space and is connected to the load-bearing limit space.

[0031] Furthermore, the depth of the recessed portion is greater than half of the distance between the bottom of the first inclined surface and the bottom of the second inclined surface.

[0032] In some embodiments, the vertical cross-section of the recessed portion is square, and a height thereof is greater than half of the distance between the bottom of the first inclined surface and the bottom of the second inclined surface.

[0033] According to some preferred aspects of the present invention, the bearing disassembly device also includes a clamping assembly, which includes a clamping part that can be raised and lowered, the clamping part can act on the upper part of the shaft from top to bottom, the support member can be supported on the lower part of the shaft from bottom to top, and the contact part between the clamping part and the shaft is located between the contact parts between any two of the support members and the shaft.

[0034] According to some preferred aspects of the present invention, the push-off component includes at least two push-off blocks arranged side by side along the axial centerline direction of the push rod, each of the push-off blocks is formed with a clearance groove and a contact end face formed on the outside of the clearance groove, the clearance groove allows the shaft to pass through, and the contact end face can act on the end face of the bearing extending in the radial direction.

[0035] According to some preferred aspects of the present invention, the bearing disassembly device also includes a first sensor for detecting the position of the shaft support seat, a second sensor for detecting the position of the push-off component, a third sensor for detecting the position of the bearing and a control system, and the first sensor, the second sensor, and the third sensor are respectively communicated with the control system.

[0036] Another technical solution provided by the present invention is a bearing disassembly method, which uses the bearing disassembly device as described above, and comprises the following steps:

[0037] placing the assembly on the support member of the shaft support seat;

[0038] The shaft support seat is driven to approach the pushing component; the push rod is driven to move along the axis of the shaft and approach the shaft, and then abut against the shaft;

[0039] The pushing-off component is disposed against the end surface of the bearing extending in the radial direction, and the pushing-off component is driven to move so as to push the at least one bearing to separate from the shaft and then move to the push rod;

[0040] The push rod is driven to move along the axis direction of the shaft and away from the shaft, so that the at least one bearing is separated from the push rod respectively.

[0041] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0042] Based on the problems existing in the prior art when disassembling a shaft and a bearing, especially when disassembling an assembly with multiple bearings arranged on a single shaft, such as low disassembly efficiency and the risk of damaging the shaft or bearing during the disassembly method, the present invention innovatively provides a novel bearing disassembly device. The disassembly device realizes multi-point positioning by means of multiple support members and a push rod respectively cooperating with the shaft, enabling the shaft to always maintain the expected extension direction during the bearing disassembly process, reducing the possibility of deviation. This not only avoids the unexpected resistance of the shaft to the bearing when pushing out the bearing but also can prevent the bearing or shaft from being damaged by too large a pushing force. In particular, while positioning the shaft with the push rod, the present invention can also provide a resistance to limit the movement of the shaft along its own axis direction through the push rod, ensuring that the shaft does not move synchronously with the bearing when disassembling the bearing and guaranteeing the disassembly effect. In addition, since the push rod can move along the axis direction of the shaft, after the bearing is separated from the shaft, the push rod can be used as a buffer rod, enabling the bearing to be temporarily sleeved on the push rod. After the push rod withdraws from positioning and restricting the shaft, the push rod can unload the bearing to the expected position while resetting, avoiding the phenomenon that the bearing flies away without restriction after being pushed out (since the force for pushing out the bearing is relatively large, if there is no restriction on the bearing after separation, it may damage the surrounding equipment or even injure the operator after flying out quickly).

[0043] Meanwhile, through the disassembly device of the present invention, it is convenient to realize the simultaneous disassembly of multiple bearings during the disassembly process. When multiple bearings are disassembled synchronously, they will not interfere with each other, greatly improving the disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0045] Figure 1 It is a schematic structural diagram of the assembly disassembled by the bearing disassembly device in the embodiment of the present invention;

[0046] Figure 2 It is a schematic structural diagram of the bearing disassembly device in the embodiment of the present invention (in the first state);

[0047] Figure 3 For Figure 2 the enlarged schematic view of part A in

[0048] Figure 4 It is a schematic structural diagram of the bearing disassembly device in the embodiment of the present invention (in the second state);

[0049] Figure 5 is Figure 4 An enlarged schematic view of position B in

[0050] Figure 6 A top view schematic diagram of the bearing disassembly device in the second state of the embodiment of the present invention;

[0051] Figure 7 Another perspective schematic diagram of the bearing disassembly device in the second state of the embodiment of the present invention;

[0052] Figure 8 is Figure 7 An enlarged schematic view of position C in

[0053] Figure 9 A structural schematic diagram of the bearing disassembly device in the third state of the embodiment of the present invention;

[0054] Figure 10 is Figure 9 An enlarged schematic view of position D in

[0055] Figure 11 A top view schematic diagram of the bearing disassembly device in the third state of the embodiment of the present invention;

[0056] Figure 12 A structural schematic diagram of the support member and the support plate in the embodiment of the present invention;

[0057] In the reference numerals: 1, assembly; 11, shaft; 111, positioning groove; 12, bearing; 2, bearing disassembly device; 211, support member; 2111, support body; 2112, first inclined surface; 2113, second inclined surface; 2114, recessed portion; 2115, bearing limit space; 212, support plate; 221, ejector rod; 2211, protrusion; 231, pushing-away member; 2311, pushing-away block; 23111, relief groove; 23112, contact end face; 24, first displacement mechanism; 241, first base; 242, first slide rail; 243, first driving component; 25, second displacement mechanism; 251, second base; 252, second slide rail; 253, second driving component; 26, third displacement mechanism; 261, third base; 262, third driving component; 271, bearing dropping port; 272, barrier member; 2721, relief hole; 28, pressing component; 281, pressing member; 2821, first force arm; 2822, second force arm; 2823, connecting member; 291, first sensor; 292, second sensor; 293, third sensor; 3, substrate. Detailed implementation manners

[0058] To make the above objects, features, and advantages of the present invention more apparent and understandable, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0059] In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0060] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0061] As Figure 1 shown, it exemplarily shows the pre-disassembly assembly structure in the following embodiments, which includes a shaft 11 and at least one bearing 12 provided on the shaft 11 (it can be 1, or 2 or more. In this example, two bearings are specifically exemplarily given, mainly to better illustrate that the bearing disassembly device of the present invention can simultaneously disassemble multiple bearings on one shaft). A positioning groove 111 is provided on the shaft 11. This positioning groove 111 is a special design that each shaft 11 has during the production process, facilitating the production of the shaft 11.

[0062] Referring to Figures 2 to 12 shown, this example provides a bearing disassembly device 2 for disassembling Figure 1 the assembly 1 formed by the shaft 11 and two bearings 12 shown. The bearing disassembly device 2 includes a base plate 3, a shaft support seat, a jacking rod assembly, a pushing-away mechanism, a bearing dropping port 271, a barrier 272, a first displacement mechanism 24, a second displacement mechanism 25, a third displacement mechanism 26, a pressing assembly 28, a first sensor 291, a second sensor 292, a third sensor 293, and a control system (not shown);

[0063] Among them, the shaft support seat has at least two support members 211, and each support member 211 is respectively used to support different positions on the shaft 11 along its own axis direction;

[0064] The jacking rod assembly includes a jacking rod 221 that can limit the movement of the shaft 11 along its own axis direction, and the jacking rod 221 can move along the axis direction of the shaft 11;

[0065] The pushing-away mechanism includes a push-away component 231 that is movably arranged;

[0066] The bearing disassembly device includes a first state (as Figures 2 - 3 shown), a second state (as Figures 4 - 8 ), a third state (as Figures 9 - 11) and the fourth state. When the bearing disassembly device is in the first state, the pushing-away member 231 and the support member 211 are away from each other, and the axis line of the ejector rod 221 is parallel to the axis line of the shaft 11;

[0067] When the bearing disassembly device is in the second state, the pushing-away member 231 and the support member 211 are close to each other, the axis line of the ejector rod 221 coincides with the axis line of the shaft 11, the ejector rod 221 abuts against the shaft 11, and the pushing-away member 231 can act on the radially extending end face of the bearing 12 and can move the two bearings 12 from the shaft 11 onto the ejector rod 221 respectively;

[0068] When the bearing disassembly device is in the third state, the pushing-away member 231 moves away from the support member 211 and approaches the ejector rod 221, and both of the two bearings 12 can be sleeved on the ejector rod 221;

[0069] When the bearing disassembly device is in the fourth state, the ejector rod 221 moves away from the shaft 11, and the two bearings 12 are separated from the ejector rod 221 respectively.

[0070] Further, the first displacement mechanism 24 is used to drive the shaft support seat to displace, the second displacement mechanism 25 is used to drive the pushing-away member 231 to displace, and the third displacement mechanism 26 is used to drive the ejector rod 221 to move;

[0071] The first displacement mechanism 24 includes a first base 241, a first slide rail 242, and a first driving component 243. The first base 241 is slidably arranged on the first slide rail 242. The first driving component 243 is used to drive the first base 241 to slide on the first slide rail 242. The shaft support seat is arranged on the first base 241 and moves synchronously with the sliding of the first base 241. The pressing component 28 is also arranged on the first base 241 and can move synchronously with the sliding of the first base 241;

[0072] The second displacement mechanism 25 includes a second base 251, a second slide rail 252, and a second driving component 253. The second base 251 is slidably arranged on the second slide rail 252. The second driving component 253 is used to drive the second base 251 to slide on the second slide rail 252. The pushing-away mechanism is arranged on the second base 251 and moves synchronously with the sliding of the second base 251. When acting on the bearing 12, the bearing 12 is separated from the shaft 11 by the power provided by the second displacement mechanism 25;

[0073] The third displacement mechanism 26 includes a third base 261 and a third driving component 262. The third driving component 262 is arranged on the third base 261. The ejector rod 221 is in transmission connection with the third driving component 262. The third driving component 262 is used to drive the ejector rod 221 to move along the axis line direction of the shaft 11, moving forward or backward;

[0074] In this example, there is no limitation on the specific forms of the first drive assembly 243, the second drive assembly 253, and the third drive assembly 262, as long as they can achieve the requirements of the present invention. For example, they can be threaded screw transmission, hydraulic cylinder transmission, pneumatic cylinder transmission, gear transmission, etc.

[0075] Further, the first displacement mechanism 24, the second displacement mechanism 25, the third displacement mechanism 26, the bearing drop-out opening 271, the blocking member 272, the first sensor 291, the second sensor 292, the third sensor 293, and the control system are respectively arranged on the substrate 3, the first displacement mechanism 24, the second displacement mechanism 25, and the third displacement mechanism 26 are respectively located on different sides of the bearing disassembly device, the blocking member 272 is arranged on the side of the bearing drop-out opening 271 and is formed with a clearance hole 2721, the clearance hole 2721 allows the ejector rod 221 to pass freely and prevents the bearing 12 from passing through, the first sensor 291, the second sensor 292, the third sensor 293, the first drive assembly 243, the second drive assembly 253, and the third drive assembly 262 are respectively connected to the control system for communication, and then automatic or semi-automatic control can be achieved according to the feedback of the sensor;

[0076] In this example, two first sensors 291 can be set, both for detecting the position of the shaft support seat, and further detecting the different positions of the shaft support seat, and transmitting the position information of the shaft support seat to the control system; two second sensors 292 are also set, both for detecting the position of the push-away component 231, and further detecting the different positions of the push-away component 231, and transmitting the position information of the push-away component 231 to the control system; one third sensor 293 can be set, for detecting whether the bearing 12 exists, and transmitting the information whether the bearing 12 exists to the control system.

[0077] The shaft support seat includes a first position and a second position sequentially arranged along a direction perpendicular to the axis of the shaft 11. In this example, one of the two first sensors 291 can be used to detect the first position, and the other can be used to detect the second position;

[0078] When the bearing disassembly device is in the first state, the shaft support seat is located at the first position (such as Figure 2 As shown), in this state, the push-off member 231 and the support member 211 are away from each other, which can facilitate the assembly 1 to be installed on the shaft support seat. After installation, an instruction can be given to move it to the second position;

[0079] When the bearing disassembly device is in the second state or the third state, the shaft support seat is located at the second position (such as Figure 4 As shown), when the shaft support seat is located at the second position, another first sensor 291 will detect and give a signal;

[0080] The push-off component 231 includes a first station ( Figure 2 , Figure 4 Position shown) and the second station (as shown Figures 9 - 10 As shown), in this example, one of the two second sensors 292 can be used to detect whether the push-away component 231 is located at the first station, and the other can be used to detect whether the push-away component 231 is located at the second station;

[0081] When the bearing disassembly device is in the first state or the second state, the push-off component 231 is located at the first position. When the push-off component 231 is located at the first position, this position can be defined as a starting position. In this position, the push-off component 231 can wait to form a matching state with the shaft 11 and the bearing 12 to be disassembled.

[0082] When the bearing removal device is in the third state, the push-off component 231 is located at the second position. When the push-off component 231 is located at the second position, this position means that the push-off component 231 has pushed the bearing 12 out of the shaft 11 and driven it to be sleeved on the push rod 221. When one of the second sensors 292 detects that the push-off component 231 reaches this position, it can issue a command, for example, to stop the movement.

[0083] When the bearing removal device is in the fourth state, the push rod 221 is away from the shaft 11, and the two bearings 12 are detached from the push rod 221 respectively, and then fall from the bearing drop opening 271 and are collected.

[0084] In this example, the push-off component 231 is movably arranged along the axial centerline direction of the push rod 221, and the shaft support seat is movably arranged along the axial centerline direction perpendicular to the push rod 221, which can reduce the space occupied.

[0085] In this example, the push rod 221 has an extended state and a retracted state. When the push rod 221 is in the extended state, the push rod 221 passes through the clearance hole 2721 and is partially located directly above the bearing drop-out opening 271, and the push rod 221 can be against the shaft 11; when the push rod 221 is in the retracted state, the push rod 221 is away from the shaft 11, the push rod 221 withdraws from the clearance hole 2721 and is away from directly above the bearing drop-out opening 271; further, the end of the push rod 221 in this example that is used to resist the shaft 11 is formed with a protrusion 2211, and the protrusion 2211 has a shape that is adapted to the positioning groove 111 on the shaft 11, so that the protrusion 2211 can be inserted into the positioning groove 111. This setting method can better achieve the restricted movement and positioning of the shaft.

[0086] In this example, the support member 211 includes a support body 2111, a first inclined surface 2112, a second inclined surface 2113, and a recess 2114 formed on the support body 2111. The first inclined surface 2112 and the second inclined surface 2113 are symmetrically arranged and jointly form a bearing limit space 2115 for supporting and restricting the axial movement of the shaft 11 in the radial direction. The recess 2114 is located below the bearing limit space 2115 and communicates with the bearing limit space 2115. The depth of the recess 2114 is greater than half of the distance between the bottom of the first inclined surface 2112 and the bottom of the second inclined surface 2113. This setting allows the lower part of the shaft 11 to be suspended when the shaft 11 is arranged in the bearing limit space 2115, avoiding contact with the bottom, because once contact occurs, a supporting force will be generated, which may cause the supporting and limiting functions of the inclined surfaces on both sides to fail, so that the shaft 11 can roll or move on the support member 211, that is, the extending direction of the shaft 11 may shift, ultimately having a negative impact on the ejection of the bearing 12. According to the setting method of this example, the shaft 11 can be supported and limited only by contacting the inclined surfaces. Further, as an optional implementation manner, the vertical cross-section of the recess 2114 is square, such as a rectangle or a square, that is, the recess 2114 is a cuboid or a cube, and its height is greater than half of the distance between the bottom of the first inclined surface 2112 and the bottom of the second inclined surface 2113.

[0087] In this example, the pressing assembly 28 includes a pressing member 281 that can be lifted and lowered, and a power assembly for driving the pressing member 281 to lift and lower. The pressing member 281 can act on the upper part of the shaft 11 from top to bottom, and the support member 211 can support the lower part of the shaft 11 from bottom to top. The contact part of the pressing member 281 and the shaft 11 is located between the contact parts of any two support members 211 and the shaft 11 respectively. This setting can enable the shaft 11 to be better supported and limited by the pressing member 281 and the support member 211, so that the shaft 11 will not tilt or fall after the subsequent pushing member 231 and the bearing 12 are separated from the shaft 11 together. Further, in this example, the structure of the pressing member 281 can be the same as that of the support member 231, except that during use, the support and limit part of the support member 211 faces upward, and the support and limit part of the pressing member 281 faces downward.

[0088] The power assembly can be a cylinder, which directly drives the pressing component to move up and down; or it can adopt the following structure: the power assembly includes a first force arm 2821, a second force arm 2822, and a connecting member 2823. The lower end of the first force arm 2821 is rotatably arranged on the first base 241. The middle part of the second force arm 2822 is rotatably connected to the upper end of the first force arm 2821. One end of the second force arm 2822 is connected to one end of the connecting member 2823. The other end of the second force arm 2822 can be used as an operating handle. The other end of the connecting member 2823 is connected to the pressing component 281. The heights of the two ends of the second force arm 2822 in the vertical direction are higher than the height of the middle part of the second force arm 2822, which is convenient for lifting the connecting member 2823 and then driving the pressing component 281 to move up and down. By cooperating with actions such as pulling the operating handle, pushing the operating handle, pressing the operating handle, and raising the operating handle, the movement of the pressing component 281 can be realized, such as the lifting action, which is convenient and fast.

[0089] In this example, the pushing-away component 231 includes at least two pushing-away blocks 2311 arranged side by side along the axial center line of the ejector rod 221 (in this example, two pushing-away blocks 2311 are provided for the fitting assembly 1, and each pushing-away block 2311 corresponds to a bearing 12). A relief groove 23111 is formed on each pushing-away block 2311 and a contact end face 23112 is formed outside the relief groove 23111. The relief groove 23111 allows the shaft 11 to pass through, and the contact end face 23112 can act on the radially extending end face of the bearing 12.

[0090] This example also provides a method for disassembling a bearing. This bearing disassembly method uses the above-mentioned bearing disassembly device and includes the following steps:

[0091] Place the fitting assembly 1 on the support member 211 of the shaft support base;

[0092] Drive the shaft support base to approach the pushing-away component 231; drive the ejector rod 221 to move along the axial center line of the shaft 11 and approach the shaft 11, and then abut against the shaft 11;

[0093] Make the pushing-away component 231 abut against the radially extending end face of the bearing 12, and by driving the pushing-away component 231 to move, push the two bearings 12 to disengage from the shaft 11 respectively and then move onto the ejector rod 221;

[0094] Drive the ejector rod 221 to move along the axial center line of the shaft 11 and away from the shaft 11, so that the two bearings 12 disengage from the ejector rod 221 respectively.

[0095] The following further describes the method for disassembling a bearing using the various state diagrams of the bearing disassembly device in this example.

[0096] As Figures 2 - 3As shown, an exemplary schematic diagram of the bearing disassembly device 2 in the first state is given. The pushing-away member 231 and the support member 211 are away from each other. The axis line of the ejector rod 221 is parallel to the axis line of the shaft 11. The shaft support base is located at the first position, the pushing-away member 231 is located at the first working station, and the ejector rod 221 has not yet protruded from the relief hole 2721 of the barrier member 272. It can be considered to be in an initial state. At this time, the assembly 1 can be placed on the support member 211 of the shaft support base, and then the shaft 11 can be further pressed by the pressing assembly 28.

[0097] Then, the first displacement mechanism 24 drives the shaft support base to move to the second position. When one of the first sensors 291 detects the shaft support base, it indicates that the shaft support base has reached the second position, and the first displacement mechanism 24 stops working. At this time, the pushing-away member 231 has approached the support member 211, and the relief groove 23111 of the pushing block 2311 included in the pushing-away member 231 has cooperated with the shaft 11, and the shaft 11 is caught in the relief groove 23111. At the same time, the abutting end face 23112 of the pushing block 2311 approaches or has contacted the radially extending end face of the bearing 12. And the ejector rod 221 moves along the axis line of the shaft 11 and approaches the shaft 11 under the drive or drive of the third displacement mechanism 26. Finally, the protrusion 2211 of the ejector rod 221 is inserted into the positioning groove 111 on the shaft 11, and the axis line of the ejector rod 221 coincides with the axis line of the shaft 11, forming a state as shown in Figures 4 - 5 As shown, at this time, the bearing disassembly device is in the second state.

[0098] After the above process is completed, the second displacement mechanism 25 drives the pushing-away member 231 to move along the axis line of the ejector rod 221. During the movement, through the interaction between the abutting end face 23112 of the pushing block 2311 and the radially extending end face of the bearing 12, when the acting force is sufficient, the bearing 12 can be disengaged from the shaft 11 along the axis line of the ejector rod 221 and move towards the ejector rod 221. During this process, due to the multi-point positioning method, the axis line of the shaft 11 always coincides with the axis line of the ejector rod 221 during the disengagement of the bearing 12, and no unexpected actions such as rotation will occur. The disassembly of the bearing 12 can be quickly completed. At the same time, this operation process enables even when there are multiple bearings, since the disassembly processes of each bearing can be independent of each other, and even simultaneous disassembly can be achieved, greatly improving the disassembly efficiency. Finally, a state as shown in Figures 9 - 10 As shown, at this time, the bearing disassembly device is in the third state, and each bearing 12 is sleeved on the ejector rod 221. In this example, there is also a connecting sleeve-like component between the two bearings 12 that is sleeved on the ejector rod 221 together with the bearing 12.

[0099] When the bearing disassembly device forms the third state as shown in Figures 9 - 10 , the third sensor 293 detects the presence of the bearing 12, and the second displacement mechanism 25 stops working. At this time, the ejector rod 221 can be driven to retract by driving the third displacement mechanism 26 until it retracts to the initial retracted state. During the retraction process, the ejector rod 221 can smoothly retract through the relief hole 2721. However, when the outermost bearing 12 from the shaft 11 (i.e., the one closest to the barrier member 272) encounters the barrier member 272, since it cannot pass through the relief hole 2721, it is blocked by the barrier member 272, while the ejector rod 221 can continue to retract. Once the ejector rod 221 is completely retracted, the bearing 12 loses the support of the ejector rod 221, and the relief groove 23111 of the push-off block 2311 cannot stably support the larger-sized bearing. Then the bearing 12 can roll into the bearing drop port 271 and be collected at a fixed point. Of course, preferably, in order to make the bearing 12 slide out of the relief groove 23111 more smoothly, the inner wall surface of the relief groove 23111 can be inclined.

[0100] Furthermore, when the bearing has fallen, at this time the third sensor 293 can no longer detect the presence of the bearing 12, and an instruction can be issued to make the second displacement mechanism 25 start working, and drive the push-off component 231 to return to the first working position. After taking away the shaft on the support member 211, the shaft support seat can be driven by the first displacement mechanism 24 to return to the first position, indicating that a disassembly process is completed. When disassembling next time, placing the assembly on the support member forms the state as shown in Figure 2 to perform the disassembly of the next assembly.

[0101] From the above process, it can be seen that the disassembly device of the present invention realizes multi-point positioning through multiple support members and ejector rods respectively cooperating with the shaft, enabling the shaft to always maintain the expected extension direction during the process of disassembling the bearing, reducing the possibility of deviation. This not only avoids the unexpected resistance generated by the shaft to the bearing when pushing out the bearing, but also can avoid damaging the bearing or the shaft due to too large a pushing force. In particular, while using the ejector rod to position the shaft, the present invention can also provide a resistance to limit the movement of the shaft along its own axis direction through the ejector rod, ensuring that the shaft will not move synchronously with the bearing when disassembling the bearing, and ensuring the disassembly effect. In addition, since the ejector rod can move along the axis direction of the shaft, after the bearing is separated from the shaft, the ejector rod can be used as a buffer rod, enabling the bearing to be temporarily sleeved on the ejector rod. After the ejector rod exits the positioning and limits the shaft, the ejector rod can unload the bearing to the expected position while resetting, avoiding the phenomenon that the bearing flies away without restriction after being pushed out (since the force for pushing out the bearing is relatively large, if there is no restriction after the bearing is separated, it may damage the surrounding equipment or even injure the operator after flying out quickly).

[0102] Meanwhile, with the disassembly device of the present invention, it is convenient to simultaneously disassemble multiple bearings during the disassembly process. When multiple bearings are disassembled synchronously, there will be no interference between them, greatly improving the disassembly efficiency.

[0103] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the protection scope of the present invention cannot be limited by this. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

[0104] In this disclosure, the endpoints and any values in the disclosed ranges are not limited to the exact ranges or values. These ranges or values should be understood to include values close to these ranges or values. For numerical ranges, the endpoints of each range, between the endpoints of each range and individual point values, and between individual point values can be combined with each other to obtain one or more new numerical ranges, and these numerical ranges should be regarded as specifically disclosed in this article.

Claims

1. A bearing disassembly device, characterized in that it is used to disassemble an assembly formed by a shaft and at least one bearing arranged on the shaft, and the bearing disassembly device includes: a shaft support seat, which has at least two support members, and each of the support members is respectively used to support different positions of the shaft along its own axis direction; a push rod assembly, which includes a push rod that can limit the movement of the shaft along its own axis direction, and the push rod can move along the axis direction of the shaft; a pushing-away mechanism, which includes a movably arranged pushing-away component, and the pushing-away component is movably arranged along the axis direction of the push rod; the shaft support seat is movably arranged along a direction perpendicular to the axis direction of the push rod; the bearing disassembly device includes a first state, a second state, a third state and a fourth state. When the bearing disassembly device is in the first state, the pushing-away component and the support member are far away from each other, and the axis of the push rod is parallel to the axis of the shaft; when the bearing disassembly device is in the second state, the pushing-away component and the support member are close to each other, the axis of the push rod coincides with the axis of the shaft, the push rod abuts against the shaft, and the pushing-away component can act on the end surface extending in the radial direction of the bearing and can make the at least one bearing move from the shaft to the push rod respectively; when the bearing disassembly device is in the third state, the pushing-away component is far away from the support member and close to the push rod, and the at least one bearing can be sleeved on the push rod; when the bearing disassembly device is in the fourth state, the push rod is far away from the shaft, and the at least one bearing is separated from the push rod respectively.

2. The bearing disassembly device according to claim 1, characterized in that the shaft support seat includes a first position and a second position arranged in sequence along a direction perpendicular to the axis of the shaft; when the bearing disassembly device is in the first state, the shaft support seat is located at the first position; when the bearing disassembly device is in the second state or the third state, the shaft support seat is located at the second position; the pushing-away component includes a first working position and a second working position arranged in sequence along the axis direction of the shaft; when the bearing disassembly device is in the first state or the second state, the pushing-away component is located at the first working position; when the bearing disassembly device is in the third state, the pushing-away component is located at the second working position.

3. The bearing disassembly device according to claim 1, characterized in that the bearing disassembly device further includes a bearing dropping port and a barrier member arranged beside the bearing dropping port and formed with a relief hole. The relief hole allows the push rod to pass through freely and prevents the bearing from passing through; the push rod has an extended state and a retracted state. When the push rod is in the extended state, the push rod passes through the relief hole and part of it is directly above the bearing dropping port, and the push rod can abut against the shaft; when the push rod is in the retracted state, the push rod is far away from the shaft, and the push rod withdraws from the relief hole and is far away from directly above the bearing dropping port.

4. The bearing disassembly device according to claim 1, characterized in that A positioning groove is formed on the shaft. A protrusion is formed at the end of the ejector rod that abuts against the shaft. The shape of the protrusion is adapted to the positioning groove, and the protrusion can be inserted into the positioning groove.

5. The bearing dismounting device according to claim 1, characterized in that the support member includes a support body, a first inclined surface, a second inclined surface and a recess formed on the support body. The first inclined surface and the second inclined surface are symmetrically arranged and jointly form a bearing limit space for supporting and restricting the shaft from moving radially. The recess is located below the bearing limit space and communicates with the bearing limit space.

6. The bearing dismounting device according to claim 5, characterized in that the depth of the recess is greater than half of the distance between the bottom of the first inclined surface and the bottom of the second inclined surface; or, the vertical cross-section of the recess is square, and its height is greater than half of the distance between the bottom of the first inclined surface and the bottom of the second inclined surface.

7. The bearing dismounting device according to claim 1, characterized in that the bearing dismounting device further includes a pressing assembly. The pressing assembly includes a pressing member that can be lifted and lowered. The pressing member can act on the upper part of the shaft from top to bottom. The support member can support the lower part of the shaft from bottom to top. The contact part of the pressing member and the shaft is located between the contact parts of any two support members and the shaft respectively; and / or, the bearing dismounting device further includes a first displacement mechanism for driving the shaft support seat to displace, a second displacement mechanism for driving the pushing-away member to displace, and a third displacement mechanism for driving the ejector rod to move. The first displacement mechanism, the second displacement mechanism and the third displacement mechanism are respectively located on different sides of the bearing dismounting device.

8. The bearing dismounting device according to claim 1, characterized in that the pushing-away member includes at least two pushing-away blocks arranged side by side along the axial center line of the ejector rod. A relief groove and a contact end surface formed outside the relief groove are formed on each pushing-away block. The relief groove allows the shaft to pass through, and the contact end surface can act on the end surface of the bearing extending in the radial direction; and / or, the bearing dismounting device further includes a first sensor for detecting the position of the shaft support seat, a second sensor for detecting the position of the pushing-away member, a third sensor for detecting the position of the bearing and a control system. The first sensor, the second sensor and the third sensor are respectively communicatively connected to the control system.

9. A bearing dismounting method, characterized in that the bearing dismounting method uses the bearing dismounting device according to claim 1, and includes the following steps: Placing the assembly on the support member of the shaft support seat; Driving the shaft support seat to approach the pushing-away member; driving the ejector rod to move along the axial center line of the shaft and approach the shaft, and then abutting against the shaft; Press the pushing-away component against the radially extending end face of the bearing, and by driving the pushing-away component to move, push the at least one bearing away from the shaft respectively and then move them onto the ejector rod; Drive the ejector rod to move along the axial center line of the shaft and away from the shaft, so that the at least one bearing is separated from the ejector rod respectively.

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