A rotary guide spindle dismounting device and method by friction locking, application

Abstract

The application relates to the technical field of main shaft dismounting, and particularly discloses a rotating guide main shaft dismounting device and method and application through friction locking, which comprises a fixing assembly installed on a rotating guide main shaft, an axial limiting mechanism installed on the rotating guide main shaft, a friction locking piece, a second connecting plate and a clamping jaw; the second connecting plate is arranged outside the fixing assembly and is parallel to the axial direction of the rotating guide main shaft; one end of the adjusting plate is movably connected with the second connecting plate, and the other end is movably connected with the fixing assembly; one end of the second connecting plate is slidably arranged on the axial limiting mechanism; the clamping jaw is connected with the second connecting plate; and a telescopic piece is fixed at the fixing end and has a telescopic end pointing to the bearing. The application adopts the circumferential mode to realize that the dismounting device is fixed on the outer wall of the rotating guide main shaft, and can realize that the bearing and other hot-mounted components at any position on the rotating guide main shaft are dismounted through the axial thrust.

Description

Technical Field

[0001] This invention relates to the field of spindle disassembly technology, specifically to a rotary guide spindle disassembly device and method with friction locking, and its application. Background Technology

[0002] Currently, there are two main methods for disassembling bearings on spindles: 1) using a hammering method, where the bearing is repeatedly struck with a sledgehammer to slowly remove it. This method is not only time-consuming and labor-intensive, but also causes significant damage to the spindle; 2) using axial thrust to disassemble the bearing. This requires fixing an axial thrust disassembly device to the spindle and then using hydraulic or other telescopic components to provide axial thrust to disassemble the bearing. Existing axial thrust disassembly devices typically fix both ends of the spindle axially and then install hydraulic or other telescopic components at one end. Because using axial thrust to disassemble the bearing will produce a reverse effect on the device, fixing both ends of the spindle axially provides better stability than directly using radial circumferential fixing, such as CN216731591U - an unloading device for separating spindles and bearings. However, this method is only suitable for scenarios with shorter spindles and cannot be applied to rotary guide spindles. The length of rotary guide spindles used for drilling is usually several meters to more than ten meters. Due to their long length, bearings are usually required at both ends and in the middle of the rotary guide spindle. If the disassembly device is installed on the spindle by fixing both ends of the rotary guide spindle, the disassembly of the middle bearing cannot be achieved due to the limited extension stroke of the telescopic component.

[0003] Therefore, a spindle disassembly device needs to be designed to address the length characteristics of the rotary guide spindle. Summary of the Invention

[0004] The purpose of this invention is to provide a rotary guide spindle disassembly device that is friction-locked. The disassembly device is fixed to the outer wall of the rotary guide spindle in a circumferential manner, and can disassemble bearings and other heat-fitted components at any position on the rotary guide spindle by means of axial thrust.

[0005] Furthermore, the present invention also provides a method for using and application of the above-described rotary guide spindle disassembly device.

[0006] This invention is achieved through the following technical solution:

[0007] A rotary guide spindle disassembly device with friction locking, comprising:

[0008] The fixed component is detachably mounted on the rotary guide spindle;

[0009] An axial limiting mechanism is detachably mounted on the rotary guide spindle and located between the fixed component and the bearing to be disassembled.

[0010] The friction locking component includes an adjusting plate, a second connecting plate, and a pawl. The second connecting plate is located outside the fixed assembly and is parallel to the axial direction of the rotary guide spindle. One end of the adjusting plate is movably connected to the second connecting plate, and the other end is movably connected to the fixed assembly. One end of the second connecting plate is slidably mounted on an axial limiting mechanism, which limits the axial displacement of the second connecting plate. The pawl is connected to the second connecting plate. When the fixed assembly and the axial limiting mechanism are installed on the rotary guide spindle, the inner side of the pawl abuts against the outer wall of the rotary guide spindle. At this time, the axial directions of the adjusting plate and the rotary guide spindle form an acute angle between them on the side closest to the axial limiting mechanism.

[0011] The telescopic component has its fixed end mounted on a fixed assembly, and its telescopic end points towards the bearing.

[0012] The fixing component of the present invention can be directly installed on the rotary guide spindle and can be fixed at any position on the rotary guide spindle. By installing the telescopic component on the fixing component, the telescopic component can disassemble the bearings and other heat-fitted components at any position on the rotary guide spindle, including the middle and both ends, by applying axial thrust.

[0013] This invention addresses the issue that when disassembling bearings and other heat-fitted components by applying axial thrust, the fixing assembly experiences a reaction force. If this reaction force exceeds the friction between the fixing assembly and the rotary guide shaft, the fixing assembly moves axially away from the bearing along the outer wall of the rotary guide shaft, affecting the axial thrust applied to the bearing by the telescopic component. This invention solves this problem by installing a friction locking element on the outer wall of the fixing assembly. This friction locking element uses an axial limiting mechanism to restrict axial displacement. When the telescopic component applies axial thrust to the bearing, the fixing assembly experiences a reaction force. If this reaction force is insufficient to cause axial displacement of the fixing assembly, the entire disassembly device remains stable, with the chuck and fixing assembly working together for fixation. If the reaction force is sufficient to cause axial displacement of the fixing assembly, the fixing assembly moves away from the axial limiting mechanism. This movement increases the radial force of the chuck on the rotary guide shaft, enhancing the radial clamping force of the chuck. The radial clamping force of the chuck then prevents axial displacement of the fixing assembly, achieving overall stability of the disassembly device fixed to the rotary guide shaft.

[0014] The above structure provides the basic structural conditions for disassembling the bearings and other heat-fitted components on the rotary guide spindle. It enables the circumferential disassembly device to be fixed on the outer wall of the rotary guide spindle, and enables the disassembly of bearings and other heat-fitted components at any position on the rotary guide spindle by axial thrust.

[0015] In a preferred embodiment, the axial limiting mechanism includes an annular fixing member and a limiting plate disposed on the outer wall of the annular fixing member;

[0016] The annular fastener is detachably mounted on the rotary guide spindle. A groove is provided on the limiting plate along the radial direction of the annular fastener. One end of the second connecting plate is slidably disposed in the groove and can be displaced along the radial direction of the annular fastener.

[0017] The present invention uses a limiting plate to restrict the axial displacement of the second connecting plate. When the fixing component moves axially, the second connecting plate can only move radially within the slide groove, that is, the chuck can only move radially as well.

[0018] In a preferred embodiment, the slide is disposed on the side of the limiting plate opposite to the fixing component, or the limiting plate is provided with a through groove, and the slide is disposed on both radial sides of the through groove.

[0019] In a preferred embodiment, the annular fastener includes two symmetrically arranged second arc-shaped clamping plates, which are connected axially on both sides by bolts.

[0020] The annular fastener of the present invention can directly place the second arc-shaped clamping plate on the outside of the rotary guide spindle and fix it with bolts at the required installation position. This avoids the problem of the annular fastener using a complete annular structure, which can only be fixed by fitting it from both ends onto the rotary guide spindle and then moving it to the designated position before radial tightening.

[0021] In a preferred embodiment, the inner wall of the second arc-shaped clamping plate is provided with an elastic gasket to enhance friction. The elastic gasket has a certain degree of elasticity, ensuring that when the annular fastener is fixed to the rotary guide spindle, the elastic gasket is compressed. This ensures that, under certain assembly errors, the inner wall of the annular fastener remains in close contact with the outer wall of the rotary guide spindle, preventing issues such as poor stability of the axial limiting mechanism due to partial inability of the annular fastener's inner wall to contact the outer wall of the rotary guide spindle caused by assembly errors. Furthermore, the restoring force generated by the compression of the elastic gasket improves the stability of the axial limiting mechanism fixed to the rotary guide spindle.

[0022] In a preferred embodiment, the axial limiting mechanism further includes a second adjusting rod having a threaded section;

[0023] The end of the limiting plate away from the annular fixing part is provided with a threaded through hole, which connects the slide groove to the external space. The second adjusting rod is rotatably set in the threaded through hole through a threaded connection. By rotating the second adjusting rod, one end of the second adjusting rod is always in contact with the radial outer end of the second connecting plate. The second adjusting rod is used to limit the radial outward movement of the second connecting plate.

[0024] The present invention restricts the radial outward movement of the second connecting plate by setting a second adjusting rod, that is, restricts the radial outward movement of the chuck, so that the chuck can only move radially inward during the entire disassembly process; thus ensuring the clamping effect of the chuck on the rotary guide spindle.

[0025] In a preferred embodiment, the second connecting plate has an adjustment groove on its side wall opposite to the rotary guide spindle, and the limiting plate has a through groove.

[0026] The claw is radially slidably mounted on the second connecting plate to achieve radial displacement of the claw;

[0027] The adjusting groove is equipped with a wedge-shaped block for adjusting the radial displacement of the chuck;

[0028] The second connecting plate is equipped with an adjusting cylinder at one end that cooperates with the limiting plate. In the initial state, one end of the adjusting cylinder is placed in the adjusting groove and the top of the wedge block is in contact. A first adjusting rod is rotatably installed inside the adjusting cylinder, and the axial displacement of the wedge block is achieved by rotating the first adjusting rod.

[0029] This invention addresses the issue that after the fixing component is installed on the rotary guide spindle, assembly errors may occur, causing the central axis formed between multiple jaws to not be coaxial with the rotary guide spindle. Consequently, after the fixing component is fixed, the inner walls of some jaws may not contact the outer wall of the rotary guide spindle. If the multiple jaws do not clamp the rotary guide spindle synchronously, the friction locking component will not provide a clamping and fixing effect on the rotary guide spindle. When the fixing component undergoes axial displacement, the axial displacement of the fixing component will also occur because some jaws do not apply radial clamping force to the outer wall of the rotary guide spindle.

[0030] The structure described above in this invention enables adjustment of the radial displacement of the jaws, ensuring that when the fixing component is fixed, all jaws are in contact with the rotary guide spindle. When the fixing component undergoes axial displacement, all jaws apply radial clamping force to the outer wall of the rotary guide spindle to prevent the fixing component from undergoing axial displacement.

[0031] In a preferred embodiment, the end of the chuck placed in the adjustment groove forms a first inclined surface; the radial sides of the wedge block are a second inclined surface that mates with the first inclined surface and a vertical surface that mates with the inner wall of the adjustment groove, respectively.

[0032] This invention utilizes the relative displacement of the inclined plane to achieve radial displacement of the chuck. It has a simple structure, and the other sidewalls of the wedge block are in contact with the inner wall of the adjustment groove, which can improve the stability of the wedge block sliding in the adjustment groove.

[0033] In a preferred embodiment, a spring is provided within the adjusting groove to return the wedge block to its original position. The spring facilitates the automatic reset of the wedge block; when the first adjusting rod rotates back to its original position, the wedge block returns to its original position under the restoring force of the spring. Initially, the spring is in its natural state.

[0034] In a preferred embodiment, the system further includes a control unit, which comprises a pressure sensor, a motor, a controller, and a gear pair.

[0035] Each pressure sensor corresponds to a gripper claw and is used to collect the pressure on the inner surface of the gripper claw in real time, and transmit the collected pressure signal to the controller; each pressure sensor corresponds to a motor.

[0036] The controller determines whether the chuck is in contact with the rotary guide shaft based on the received signal, and controls the motor corresponding to the pressure sensor of the chuck that is determined not to be in contact to drive the first adjusting rod to rotate through the gear pair; until the controller determines that the chuck is in contact with the rotary guide shaft.

[0037] The above-described configuration of the present invention enables automated control of the local radial displacement of the gripper, and has the advantages of convenient operation and high accuracy.

[0038] In a preferred embodiment, the fixing assembly includes two symmetrically arranged first arc-shaped clamping plates, the axial ends of which are connected by bolts.

[0039] The above configuration allows the fixing component to be fixed at any position on the rotary guide spindle.

[0040] In a preferred embodiment, the outer wall of the first arc-shaped plate is provided with a first connecting plate along the axial direction, and one end of the adjusting plate is movably connected to the first connecting plate.

[0041] In a preferred embodiment, the inner wall of the first arc-shaped clamping plate is provided with an elastic pad to improve friction; the inner wall of the clamping claw is a rough surface.

[0042] The elastic gasket of this invention can improve the stability of the connection between the fixing component and the rotary guide spindle; the rough surface contacts the outer wall of the rotary guide spindle to generate a large frictional force, which is beneficial to improve the radial clamping of the chuck on the rotary guide spindle.

[0043] A method of using a rotary guide spindle disassembly device that is locked by friction includes the following steps:

[0044] S1. Fit the fixing component and axial limiting mechanism onto the rotary guide spindle;

[0045] S2. Fix one of the axial limiting mechanisms and fixing components, then axially displace the other until the inner wall of the chuck is in close contact with the outer wall of the rotary guide spindle, and then fix the other one.

[0046] S3. Extend the telescopic end of the telescopic component to contact the side of the bearing to be disassembled, and continue to extend it to apply axial force to the bearing until the bearing is disengaged from the rotary guide spindle.

[0047] An application of a friction-locking rotary guide spindle disassembly device is disclosed, which is used to disassemble bearings and other heat-fitted components on a spindle. The spindle includes long or short spindles, for example, rotary guide spindles several meters to tens of meters in length, or spindles used in conventional mechanical equipment with a length of about one meter. Therefore, the rotary guide spindle disassembly device of this invention has a wide range of applications.

[0048] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0049] 1. This invention achieves overall stability and ease of operation through the coordinated action of a fixed component, a friction locking element, and an axial limiting mechanism. The disassembly device is fixed to the outer wall of the rotary guide spindle in a circumferential manner, enabling the disassembly of bearings and other heat-fitted components at any position on the rotary guide spindle via axial thrust. Specifically, this invention uses a friction locking element on the outer wall of the fixed component. This friction locking element, along with the axial limiting mechanism, restricts axial displacement. Furthermore, when the fixed component undergoes axial displacement, the normal and / or radial forces exerted by the chucks on the rotary guide spindle increase. The clamping action of the chucks on the rotary guide spindle further restricts the axial displacement of the fixed component, ensuring that the fixed component remains stably fixed to the rotary guide spindle during the disassembly of bearings and other heat-fitted components.

[0050] 2. The present invention provides an adjustment groove on the side wall of the second connecting plate, and the pawl is radially slidably disposed on the second connecting plate. It is also provided with a wedge block, an adjustment cylinder and a first adjustment rod for realizing the radial displacement of the pawl. The wedge block, the adjustment cylinder and the first adjustment rod work together to realize the radial displacement of the pawl, realize the local fine adjustment of the radial displacement of the pawl, and ensure that all pawls are in contact with the rotary guide spindle, thereby ensuring the limiting effect of the friction locking component on the axial displacement of the fixing component. Attached Figure Description

[0051] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0052] Figure 1 This is a schematic diagram of the rotary guide spindle disassembly device installed on the rotary guide spindle in Embodiment 1 of the present invention;

[0053] Figure 2 This is a partial structural diagram of the friction locking component in Embodiment 1 of the present invention;

[0054] Figure 3 This is a schematic diagram of the jaws used to clamp the rotary guide spindle in Embodiment 1 of the present invention;

[0055] Figure 4 This is a schematic diagram of the axial limiting mechanism in Embodiment 1 of the present invention;

[0056] Figure 5 This is a schematic diagram of the jaws used to clamp the rotary guide spindle in Embodiment 2 of the present invention;

[0057] Figure 6 This is a schematic diagram of the engagement between the jaws and the wedge block in Embodiment 2 of the present invention;

[0058] Figure 7 This is a schematic diagram of the axial limiting mechanism in Embodiment 4 of the present invention.

[0059] The attached diagram shows the markings and corresponding component names:

[0060] 1-Fixed component; 2-Friction locking component; 3-Axial limiting mechanism; 4-Telescopic component; 5-Shaft;

[0061] 11-First arc-shaped plate; 12-First connecting plate;

[0062] 21-Adjusting plate; 22-Second connecting plate; 23-Claw; 24-Wedge block; 25-Adjusting cylinder; 26-First adjusting rod;

[0063] 111 - Protruding edge; 221 - Adjustment groove; 231 - First inclined surface; 241 - Second inclined surface;

[0064] 31-Second arc-shaped clamping plate; 32-Limiting plate; 33-Second adjusting rod;

[0065] 321-Through groove;

[0066] 100 - Rotary guide spindle. Detailed Implementation

[0067] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. The illustrative embodiments and descriptions of this invention are for illustrative purposes only and are not intended to limit the invention. The embodiments described below are some, but not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0068] In the following description, numerous specific details are set forth to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other embodiments, well-known structures, materials, or methods are not specifically described to avoid obscuring the invention. Unless otherwise specified, the materials, instruments, and reagents used in the following embodiments are commercially available. Unless otherwise specified, the techniques used in the embodiments are conventional methods well known to those skilled in the art.

[0069] Furthermore, 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. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0070] Example 1:

[0071] like Figures 1-4 As shown, a rotary guide spindle disassembly device with friction locking includes:

[0072] The fixing component 1 is detachably mounted on the rotary guide spindle 100. It can be installed at any axial position on the rotary guide spindle 100, specifically using a complete annular radial contraction structure, a clamp structure, or other structures. In this embodiment, to facilitate the installation of the fixing component 1 and consider the symmetry of installing other components, a preferred structure of the fixing component 1 in this embodiment is as follows:

[0073] The fixing assembly 1 includes two symmetrically arranged first arc-shaped clamping plates 11, and the axial ends of the two first arc-shaped clamping plates 11 are connected by bolts. Specifically, the first arc-shaped clamping plates 11 have the same axial direction as the rotary guide spindle 100, and the two axial ends of the first arc-shaped clamping plates 11 extend radially outward to form protruding edges 111. The protruding edges 111 are provided with threaded through holes, and the two protruding edges 111 are connected by bolts.

[0074] In a preferred embodiment, the inner wall of the first arc-shaped clamping plate 11 is provided with an elastic pad to improve friction. The elastic pad is an arc-shaped pad that cooperates with the first arc-shaped clamping plate 11. The specific material can be plastic. The elastic pad can be fixed to the inner wall of the second arc-shaped clamping plate 31 in any existing way, such as by bonding or snapping. Preferably, the inner wall of the elastic pad, i.e. the side that contacts the outer wall of the rotary guide spindle 100, is set as a rough surface. The rough surface can be a threaded surface, a pineapple pattern, etc.

[0075] The axial limiting mechanism 3 is detachably mounted on the rotary guide spindle 100 and is located between the fixed assembly 1 and the bearing to be disassembled. In this embodiment, the specific structure of the axial limiting mechanism 3 is as follows:

[0076] The axial limiting mechanism 3 includes an annular fixing member and a limiting plate 32 disposed on the outer wall of the annular fixing member;

[0077] The annular fastener is detachably mounted on the rotary guide spindle 100. A groove is provided on the limiting plate 32 along the radial direction of the annular fastener. One end of the second connecting plate 22 is slidably disposed in the groove and can be displaced along the radial direction of the annular fastener. Specifically, the groove is located on the side of the limiting plate 32 opposite to the fixing component 1.

[0078] In a preferred embodiment, the annular fastener includes two symmetrically arranged second arc-shaped clamping plates 31, which are connected axially on both sides by bolts. The specific connection method and effect are the same as those of the first arc-shaped clamping plate 11 described above.

[0079] In order to improve the stability of the annular fastener fixed on the rotary guide spindle 100, the inner wall of the second arc-shaped clamping plate 31 is provided with an elastic pad to improve friction.

[0080] The friction locking component 2, used to limit the axial displacement of the fixing assembly 1 under reaction force during bearing disassembly, includes an adjusting plate 21, a second connecting plate 22, and a pawl 23. The second connecting plate 22 is disposed on the outside of the fixing assembly 1 and is parallel to the axial direction of the rotary guide spindle 100. One end of the adjusting plate 21 is movably connected to the second connecting plate 22, and the other end is movably connected to the fixing assembly 1. In this embodiment, the outer wall of the first arc-shaped pawl 11 is provided with a first connecting plate 12 along the axial direction, and one end of the adjusting plate 21 is movably connected to the first connecting plate 12. Specifically, a shaft 5 is passed through both the second connecting plate 22 and the first connecting plate 12, and the adjusting plate 21 is rotatably disposed at both ends of the shaft 5. One end of the second connecting plate 22 is slidably disposed in the groove of the axial limiting mechanism 3. When the axial limiting mechanism 3 is fixed on the rotary guide spindle 100, the axial limiting mechanism 3 is used to limit the axial displacement of the second connecting plate 22. The pawl 23 is connected to the second connecting plate 22. In this embodiment, the pawl 23 is fixedly connected to the inner wall of the second connecting plate 22. Specifically, the inner wall of the second connecting plate 22 refers to the side opposite to the rotary guide spindle 100. When the fixing assembly 1 and the axial limiting mechanism 3 are installed on the rotary guide spindle 100, the inner side of the pawl 23 is connected to the rotary guide spindle 100. The outer wall of the friction locking component 2, the fixing component 1, and the axial limiting mechanism 3 work together to fix the rotary guide spindle 100, improving stability and preventing axial displacement during disassembly. At this time, the axial direction of the adjusting plate 21 and the rotary guide spindle 100 forms an acute angle near the axial limiting mechanism 3. When the fixing component 1 tends to move axially relative to the axial limiting mechanism 3, the connecting rod of the adjusting plate 21 causes the pawl 23 to tighten radially inward, improving the clamping force of the pawl 23 on the rotary guide spindle 100 and enhancing the effect of the friction locking component 2 in limiting the axial displacement of the fixing component 1. Preferably, the inner wall of the pawl 23 is a rough surface, specifically a threaded surface, to increase the friction between the pawl 23 and the outer wall of the rotary guide spindle 100. Preferably, the pawl 23 is an arc-shaped block that mates with the rotary guide spindle 100, and the inner wall of the arc-shaped block is a rough surface.

[0081] The telescopic component 4 has its fixed end mounted on the fixed assembly 1, and its telescopic end pointing towards the bearing. Specifically, the telescopic component 4 can be a hydraulic cylinder or a pneumatic cylinder, etc.

[0082] In a specific example, the first arc-shaped locking plate 11 is provided with two telescopic members 4; corresponding to the two second connecting plates 22, the claws 23 correspond one-to-one with the second connecting plates 22, that is, the friction locking member 2 in this embodiment contains 4 claws 23. The telescopic members 4 and the second connecting plates 22 are arranged at intervals, and the telescopic end of the telescopic member 4 can pass through the gap between two adjacent limiting plates 32 to push the bearing to be disassembled.

[0083] The method of using the rotary guide spindle disassembly device in this embodiment includes the following steps:

[0084] S1. Mount the fixing component 1 and the axial limiting mechanism 3 onto the rotary guide spindle 100;

[0085] S2. Fix one of the axial limiting mechanism 3 and the fixing component 1, then axially displace the other until the inner wall of the chuck 23 is in close contact with the outer wall of the rotary guide spindle 100, and then fix the other; In a specific case, first fix the axial limiting mechanism 3, move the fixing component 1 until the inner wall of the chuck 23 is in close contact with the outer wall of the rotary guide spindle 100, and then fix the fixing component 1.

[0086] S3. Extend the telescopic end of the telescopic component 4 to contact the side of the bearing to be disassembled, and continue to extend it to apply axial force to the bearing until the bearing is disengaged from the rotary guide spindle 100.

[0087] When the telescopic component 4 applies an axial thrust to the bearing, the fixed component 1 is subjected to a reaction force. If the reaction force is insufficient to cause the fixed component 1 to undergo axial displacement, the entire disassembly device has good stability. If the reaction force causes the fixed component 1 to move away from the axial limiting mechanism, this action will increase the radial force of the chuck 23 on the rotary guide spindle 100, thereby increasing the clamping force of the chuck 23. The clamping force of the chuck 23 will then prevent the fixed component 1 from undergoing axial displacement, thus achieving the overall stability of the disassembly device fixed on the rotary guide spindle 100.

[0088] The rotary guide spindle disassembly device of this embodiment can be used to disassemble bearings and other heat-fitted components on a spindle. The spindle includes a rotary guide spindle or a spindle used in mechanical equipment. The spindle can be a long spindle or a short spindle, for example, a rotary guide spindle with a length of several meters to tens of meters, or a spindle used in conventional mechanical equipment with a length of about one meter. That is, the rotary guide spindle disassembly device of this invention has a wide range of applications.

[0089] Example 2:

[0090] like Figures 1-6 As shown, this embodiment is based on embodiment 1, but differs from embodiment 1 in that the jaw 23 is set as an adjustable structure. Specifically, the jaw 23 is radially slidably connected to the second connecting plate 22 so that the radial position of the jaw 23 can be adjusted to achieve the centering of multiple jaws 23, ensuring that multiple jaws 23 are coaxial with the rotary guide spindle 100, thereby ensuring the clamping effect of the friction locking member 2 on the rotary guide spindle 100.

[0091] In this embodiment, the side wall of the second connecting plate 22 opposite to the rotary guide spindle 100 is provided with an adjustment groove 221, and the limiting plate 32 is provided with a through groove 321, which penetrates the limiting plate 32 axially. Sliding grooves are provided on both radial sides of the through groove 321, that is, sliders that cooperate with the sliding grooves can be provided on both sides of the second connecting plate 22. The sliders are slidably disposed in the sliding grooves to realize the axial restriction of the second connecting plate 22 by the limiting plate 32.

[0092] The claw 23 is radially slidably disposed on the second connecting plate 22 to achieve radial displacement of the claw 23; for example Figure 6 As shown, the chuck 23 is slidably disposed in the opening of the adjusting groove 221, specifically on both axial side walls of the chuck 23. Figure 6 The upper and lower ends of the slide are provided with sliders, and the upper and lower ends of the opening of the adjustment groove 221 are provided with sliding grooves that cooperate with the sliders.

[0093] The adjusting groove 221 is provided with a wedge block 24 for adjusting the radial displacement of the chuck 23; the axial displacement of the wedge block 24 is used to achieve this. Figure 6 The vertical displacement in the chuck achieves the radial displacement of the claw 23.

[0094] The second connecting plate 22 is equipped with an adjusting cylinder 25 at one end that cooperates with the limiting plate 32. In the initial state, one end of the adjusting cylinder 25 is placed in the adjusting groove 221 and the top of the wedge block 24 is in contact. A first adjusting rod 26 is rotatably arranged inside the adjusting cylinder 25. The axial displacement of the wedge block 24 is achieved by rotating the first adjusting rod 26. Specifically, the first adjusting rod 26 and the adjusting cylinder 25 can be rotated through a threaded connection.

[0095] When the inner wall of the chuck 23 is not in contact with the outer wall of the rotary guide spindle 100, rotate the first adjusting rod 26 so that the first adjusting rod 26 moves along... Figure 6 The direction shown is downward, pushing the wedge block 24 downward, which in turn pushes the chuck 23 to move radially inward, i.e., to the left as shown in the figure, until the inner wall of the chuck 23 contacts the outer wall of the rotary guide shaft 100; at this time, the radial sides of the chuck 23 are fixed by the rotary guide shaft 100 and the wedge block 24 respectively, and the wedge block 24 is also fixed by the radial compression of the rotary guide shaft 100, and will no longer displace in the vertical direction.

[0096] In a specific case, the specific structure for achieving the axial displacement of the wedge block 24 to drive the radial displacement of the chuck 23 is as follows:

[0097] The end of the chuck 23 placed in the adjustment groove 221 forms a first inclined surface 231. The radial width of the chuck 23 gradually increases from the end corresponding to the adjustment cylinder 25 to the other end. The radial sides of the wedge block 24 are a second inclined surface 241 that cooperates with the first inclined surface 231 and a vertical surface that cooperates with the inner wall of the adjustment groove 221, respectively. The radial width of the wedge block 24 gradually decreases from the end corresponding to the adjustment cylinder 25 to the other end.

[0098] In a specific case, a spring for returning the wedge block 24 is provided in the adjusting groove 221. The spring is located on the side opposite to the adjusting cylinder 25. After disassembly, the first adjusting rod 26 is rotated in the opposite direction to return the wedge block 24 to its original position using the restoring force of the spring. Then, a radial thrust is applied to the pawl 23 to return the pawl 23 to its original position.

[0099] Example 3:

[0100] This embodiment is based on embodiment 2. The difference between this embodiment and embodiment 2 is that this embodiment can realize the automatic alignment of multiple jaws 23. Specifically, this embodiment also includes a control unit, which includes a pressure sensor, a motor, a controller and a gear pair.

[0101] Each pressure sensor corresponds to one of the grippers 23, and is used to collect the pressure on the inner surface of the grippers 23 in real time and transmit the collected pressure signal to the controller; each pressure sensor corresponds to one motor.

[0102] The controller determines whether the chuck 23 is in contact with the rotary guide spindle 100 based on the received signal, and controls the motor corresponding to the pressure sensor of the chuck 23 that is determined not to be in contact to drive the first adjusting rod 26 to rotate through the gear pair; until the controller determines that the chuck 23 is in contact with the rotary guide spindle 100.

[0103] In this embodiment, a pressure sensor is used to monitor whether the jaws 23 are in contact with the rotary guide spindle 100, and then to determine whether the centers of the multiple jaws 23 are coaxial with the rotary guide spindle 100. If they are not coaxial, the controller controls the corresponding motor to rotate the first adjusting rod 26 to move the jaws 23 radially until all the jaws are in contact with the outer wall of the rotary guide spindle 100, so as to ensure the clamping effect of the friction locking member 2 on the rotary guide spindle 100.

[0104] Example 4:

[0105] like Figure 7As shown, this embodiment is based on any one of Embodiments 1-3. In order to restrict the radial outward movement of the chuck 23, the axial limiting mechanism 3 further includes a second adjusting rod 33, which has a threaded section. The end of the limiting plate 32 away from the annular fixing member is provided with a threaded through hole, which connects the slide groove to the external space. The second adjusting rod 33 is rotatably disposed in the threaded through hole through a threaded connection. By rotating the second adjusting rod 33, one end of the second adjusting rod 33 is always in contact with the radial outer end of the second connecting plate 22. The second adjusting rod 33 is used to restrict the radial outward movement of the second connecting plate 22.

[0106] This embodiment restricts the radial outward movement of the second connecting plate 22, thereby ensuring that the chuck 23 can only move radially inward during the bearing disassembly process, thus improving the radial clamping effect of the chuck 23 on the rotary guide spindle 100.

[0107] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0108] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the disclosed technical content. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

Claims

1. A rotary guide spindle disassembly device with friction locking, characterized in that, include: The fixed component (1) is detachably mounted on the rotary guide spindle (100); An axial limiting mechanism (3) is detachably mounted on the rotary guide spindle (100) and located between the fixing assembly (1) and the bearing to be disassembled. The friction locking component (2) includes an adjusting plate (21), a second connecting plate (22), and a pawl (23). The second connecting plate (22) is disposed on the outside of the fixing component (1), and the second connecting plate (22) is parallel to the axis of the rotary guide spindle (100). One end of the adjusting plate (21) is movably connected to the second connecting plate (22), and the other end is movably connected to the fixing component (1). One end of the second connecting plate (22) is slidably disposed on the axial limiting mechanism (3). The positioning mechanism (3) is used to limit the axial displacement of the second connecting plate (22), and the pawl (23) is connected to the second connecting plate (22); when the fixing component (1) and the axial limiting mechanism (3) are installed on the rotary guide spindle (100), the inner side of the pawl (23) abuts against the outer wall of the rotary guide spindle (100); at this time, the axial direction of the adjusting plate (21) and the rotary guide spindle (100) forms an acute angle between them on the side close to the axial limiting mechanism (3); The telescopic component (4) has its fixed end mounted on the fixed assembly (1) and its telescopic end pointing towards the bearing; The axial limiting mechanism (3) includes an annular fixing member and a limiting plate (32) disposed on the outer wall of the annular fixing member; the limiting plate (32) is used to limit the axial displacement of the second connecting plate (22); The annular fixing member is detachably mounted on the rotary guide spindle (100). A groove is provided on the limiting plate (32) along the radial direction of the annular fixing member. One end of the second connecting plate (22) is slidably disposed in the groove and can be displaced along the radial direction of the annular fixing member.

2. The rotary guide spindle disassembly device with friction locking according to claim 1, characterized in that, The groove is located on the side of the limiting plate (32) opposite to the fixing component (1).

3. The rotary guide spindle disassembly device by friction locking according to claim 1, characterized in that, The limiting plate (32) is provided with a through groove (321), and the sliding groove is provided on both radial sides of the through groove (321).

4. The rotary guide spindle disassembly device with friction locking according to claim 1, characterized in that, The annular fastener includes two symmetrically arranged second arc-shaped clamping plates (31), and the two second arc-shaped clamping plates (31) are connected on both sides of the axis by bolts.

5. The rotary guide spindle disassembly device by friction locking according to claim 4, characterized in that, The inner wall of the second arc-shaped plate (31) is provided with an elastic pad to improve friction.

6. The rotary guide spindle disassembly device by friction locking according to claim 1, characterized in that, The axial limiting mechanism (3) further includes a second adjusting rod (33), which has a threaded section; The limiting plate (32) has a threaded through hole at one end away from the annular fixing member. The threaded through hole connects the slide groove to the external space. The second adjusting rod (33) is rotatably disposed in the threaded through hole through a threaded connection. By rotating the second adjusting rod (33), one end of the second adjusting rod (33) is always in contact with the radial outer end of the second connecting plate (22). The second adjusting rod (33) is used to restrict the radial outward movement of the second connecting plate (22).

7. The rotary guide spindle disassembly device by friction locking according to claim 1, characterized in that, The second connecting plate (22) has an adjustment groove (221) on its side wall opposite to the rotary guide spindle (100), and the limiting plate (32) has a through groove (321). The claw (23) is radially slidably disposed on the second connecting plate (22) to achieve radial displacement of the claw (23); The adjustment groove (221) is provided with a wedge block (24) for adjusting the radial displacement of the claw (23); The second connecting plate (22) is provided with an adjusting cylinder (25) at one end that cooperates with the limiting plate (32). In the initial state, one end of the adjusting cylinder (25) is placed in the adjusting groove (221) and the top of the wedge block (24) is in contact. A first adjusting rod (26) is rotatably provided in the adjusting cylinder (25). The axial displacement of the wedge block (24) is achieved by rotating the first adjusting rod (26).

8. The rotary guide spindle disassembly device by friction locking according to claim 7, characterized in that, The claw (23) is placed in the adjustment groove (221) at one end to form a first inclined surface (231); the radial sides of the wedge block (24) are a second inclined surface (241) that cooperates with the first inclined surface (231) and a vertical surface that cooperates with the inner wall of the adjustment groove (221).

9. A rotary guide spindle disassembly device with friction locking according to claim 7, characterized in that, The adjustment groove (221) is provided with a spring for returning the wedge block (24) to its original position.

10. A rotary guide spindle disassembly device with friction locking according to claim 7, characterized in that, It also includes a control unit, which comprises a pressure sensor, a motor, a controller, and a gear pair; The pressure sensor corresponds one-to-one with the claw (23) and is used to collect the pressure on the inner side of the claw (23) in real time and transmit the collected pressure signal to the controller; each pressure sensor corresponds to one motor; The controller determines whether the chuck (23) is in contact with the rotary guide spindle (100) based on the received signal, and controls the motor corresponding to the pressure sensor of the chuck (23) that is determined not to be in contact to drive the first adjusting rod (26) to rotate through the gear pair; until the controller determines that the chuck (23) is in contact with the rotary guide spindle (100).

11. A rotary guide spindle disassembly device with friction locking according to claim 1, characterized in that, The fixing component (1) includes two first arc-shaped clamping plates (11) arranged symmetrically, and the axial ends of the two first arc-shaped clamping plates (11) are connected by bolts.

12. A rotary guide spindle disassembly device with friction locking according to claim 11, characterized in that, The outer wall of the first arc-shaped plate (11) is provided with a first connecting plate (12) along the axial direction, and one end of the adjusting plate (21) is movably connected to the first connecting plate (12).

13. A rotary guide spindle disassembly device with friction locking according to claim 11, characterized in that, The inner wall of the first arc-shaped card plate (11) is provided with an elastic pad to improve friction; the inner wall of the claw (23) is a rough surface.

14. A method of using a rotary guide spindle disassembly device with friction locking as described in any one of claims 1-13, characterized in that, Includes the following steps: S1. The fixing component (1) and the axial limiting mechanism (3) are sleeved on the rotary guide spindle (100); S2. Fix one of the fixing component (1) and the axial limiting mechanism (3), then axially displace the other until the inner wall of the pawl (23) is in close contact with the outer wall of the rotary guide spindle (100), and then fix the other. S3. Extend the telescopic end of the telescopic member (4) to contact the side of the bearing to be disassembled, and continue to extend it to apply axial force to the bearing until the bearing is disengaged from the rotary guide spindle (100).

15. The application of a rotary guide spindle disassembly device with friction locking as described in any one of claims 1-13, characterized in that, It is used to disassemble bearings and other heat-fitted components on a spindle, which is a rotary guide spindle.

16. The application of a rotary guide spindle disassembly device with friction locking as described in any one of claims 1-13, characterized in that, It is used to disassemble bearings and other heat-fitted components on a spindle, which is a spindle used in mechanical equipment.

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