Clamping lathe chuck for preventing deformation of thin-wall sleeve ring

Abstract

The utility model relates to lathe chuck technical field, the utility model provides a kind of clamping lathe chuck of preventing thin-wall sleeve ring deformation, a kind of clamping lathe chuck of preventing thin-wall sleeve ring deformation includes disc bottom, the lateral surface of disc bottom is fixedly connected with main disc, the lateral surface of main disc is provided with chucking device, the circumference of disc bottom is equipped with mounting hole, the chucking device includes lead box, the circumference of main disc is fixedly connected in lead box, the lateral surface of lead box is provided with pneumatic cylinder, the telescopic end of pneumatic cylinder is fixedly connected with sliding block.The utility model provides a kind of clamping lathe chuck of preventing thin-wall sleeve ring deformation, through the mutual cooperation between the components such as lead box, pneumatic cylinder and sliding block in chucking device, flexible clamping and stable positioning to thin-wall sleeve ring are realized, pneumatic cylinder drives sliding block to do linear motion along the guide track of lead box, solve the technical problem of sleeve ring deformation caused by uneven clamping force or instantaneous impact in prior art.

Description

Technical Field

[0001] This utility model relates to the field of machine tool chuck technology, specifically to a lathe chuck for preventing deformation of thin-walled chuck rings. Background Technology

[0002] In the field of machining, thin-walled rings are widely used in the manufacture of various precision parts due to their advantages such as light weight, material saving, and ability to meet specific design requirements.

[0003] According to a published disclosure (Publication No.: CN214557473U), a lathe chuck coaxiality detection and correction device includes: a chuck body, one side of which is mounted on a machine tool; multiple grooves spaced apart on the other side of the chuck body; jaws slidably disposed within each groove; an adjustment mechanism inside the chuck body; and the adjustment mechanism being connected to the jaws via the grooves. The adjustment mechanism is used to adjust the movable distance of the jaws within the grooves. The end of each jaw near the center of the chuck body is used to clamp a workpiece. This utility model provides a lathe chuck coaxiality detection and correction device that enables synchronous adjustment of each movable jaw to clamp and position the workpiece, effectively improving work efficiency and positioning accuracy.

[0004] The aforementioned application, which uses an adjusting mechanism to adjust the distance between the jaws to achieve workpiece clamping and positioning, improves work efficiency and positioning accuracy to some extent. However, it still has significant shortcomings when dealing with special workpieces such as thin-walled rings. Because thin-walled rings have thin walls and poor rigidity, traditional jaw clamping methods are prone to deformation due to uneven clamping force or instantaneous impact, affecting machining accuracy and product quality, even causing workpiece scrap, increasing production costs, and potentially leading to collisions during clamping. Therefore, we propose a lathe chuck for preventing deformation of thin-walled rings. Utility Model Content

[0005] To overcome the above-mentioned defects, embodiments of this utility model provide a lathe chuck for preventing deformation of thin-walled ferrules, which solves the technical problem of ferrule deformation caused by uneven clamping force or instantaneous impact in the prior art.

[0006] According to one aspect, at least one embodiment of the present invention provides a lathe chuck for preventing deformation of thin-walled ferrules, comprising: a chuck base, a main chuck fixedly connected to the side of the chuck base, a clamping device provided on the side of the main chuck, and mounting holes formed on the circumferential surface of the chuck base.

[0007] The clamping device includes a guide box, which is fixedly connected to the circumferential surface of the main disk. A cylinder is provided on the side of the guide box. A sliding block is fixedly connected to the telescopic end of the cylinder. A connecting post is fixedly connected to the side of the sliding block. A connecting block is fixedly connected to the end of the connecting post away from the sliding block. A clamping handle is fixedly connected to the side of the connecting block. A sliding groove is opened on the side of the main disk. A spring is fixedly connected to the side of the sliding groove. A buffer plate is fixedly connected to the end of the spring away from the main disk. A fixing post is fixedly connected to the side of the main disk. An anti-collision plate is fixedly connected to the end of the fixing post away from the main disk.

[0008] For example, in a lathe chuck for preventing deformation of thin-walled rings provided in at least one embodiment of the present invention, a sliding block is further included. The side of the sliding block is located on the displacement trajectory of the side of the buffer plate. The side of the sliding block is slidably connected to the side of the slide groove. This is beneficial for the sliding block to achieve flexible buffering through the buffer plate during the sliding process, so as to avoid deformation of the thin-walled rings due to rigid collisions.

[0009] The side section of the clamping handle is set to an arc shape, and the inner circumferential surface of the clamping handle is provided with an anti-slip groove. This is beneficial for the arc-shaped side section to better fit the shape of the sling when clamping thin-walled slings. At the same time, the anti-slip groove can increase the friction during clamping and prevent the sling from sliding or shifting during processing.

[0010] The number of fixed posts is set to several and arranged in a circumferential array along the side of the main plate. The anti-collision plate is located on the side of the clamping handle. This arrangement of multiple fixed posts in a circumferential array ensures that the anti-collision plate can fully cover the clamping area. When the clamping handle is displaced due to operating errors or equipment vibration, the anti-collision plate can preferentially contact the edge of the collar and absorb the impact energy through elastic deformation, thus preventing the collar from directly bearing rigid impact force.

[0011] The circumferential surface of the cylinder extension end penetrates and slides through the side of the guide box. The side cross-section of the guide box is set in a U-shape, which helps the cylinder maintain a linear motion trajectory during extension and retraction. At the same time, the U-shaped side cross-section of the guide box can provide a stable support structure for the cylinder, preventing it from shifting or jamming due to uneven force.

[0012] According to another aspect, at least one embodiment of the present invention also provides a lathe chuck for preventing deformation of thin-walled ferrules, comprising: a maintenance device, wherein the maintenance device is provided on the circumferential surface of the main disc, the maintenance device including an oil tank, the oil tank being fixedly connected to the circumferential surface of the main disc, an oil supply pipe being fixedly connected to the side of the oil tank, an oil bladder being fixedly connected to the end of the oil supply pipe away from the oil tank, an oil outlet pipe being fixedly connected to the side of the oil bladder, an oil spray block being fixedly attached to the end of the oil outlet pipe away from the oil bladder, and an adjusting valve being provided on the circumferential surface of the oil outlet pipe. This facilitates ensuring that the oil spray block can spray and maintain the clamping area with an appropriate amount of oil, avoiding wear of components due to insufficient lubrication or waste of oil due to excessive lubrication.

[0013] For example, in a clamping lathe chuck for preventing deformation of thin-walled rings provided in at least one embodiment of the present invention, a one-way valve is further included: a one-way valve is provided on the circumferential surface of the oil supply pipe and a one-way valve is provided on the circumferential surface of the oil outlet pipe. This helps to ensure that the oil flows in one direction in the oil supply pipe and the oil outlet pipe, and prevents the oil backflow from causing abnormal operation of the maintenance device.

[0014] The top of the oil tank is provided with an oil drip port. The oil tank and the oil bladder are connected internally, and the oil tank and the oil spray block are connected internally. This allows the lubricating oil in the oil tank to be replenished through the oil drip port during equipment operation. At the same time, the internal through structure enables the natural flow and circulation of the oil.

[0015] The one-way valve allows the oil bladder to conduct in one direction only, and the one-way valve allows the oil injection block to conduct in two directions only. This helps to ensure that the oil can only flow in the preset direction, avoiding pressure abnormalities or oil leakage caused by reverse flow.

[0016] The number of oil tanks, oil bladders, and oil spray blocks is set in a ring array along the vertical central axis of the main disk. The circumferential surface of the oil spray block penetrates and is fixedly connected to the side of the guide box, and the circumferential surface of the oil bladder penetrates and is fixedly connected to the side of the guide box. This helps to ensure that all key parts of the clamping device can receive uniform lubrication and maintenance.

[0017] The beneficial effects of this utility model are as follows: 1. In this utility model, the flexible clamping and stable positioning of the thin-walled ring is achieved through the cooperation of components such as the guide box, cylinder and sliding block in the clamping device. The cylinder drives the sliding block to move linearly along the guide trajectory of the guide box. The sliding block drives the clamping handle to move synchronously through the connecting column and connecting block, so that the arc-shaped inner circumferential surface of the clamping handle is closely fitted with the shape of the thin-walled ring. The spring and buffer plate on the side of the slide groove form a flexible buffer system. When the sliding block contacts the buffer plate, the spring absorbs part of the impact energy through elastic deformation, avoiding rigid collision between the clamping handle and the thin-walled ring, thereby effectively preventing the ring deformation caused by uneven clamping force or instantaneous impact.

[0018] 2. In this utility model, the automatic lubrication and maintenance of key parts of the clamping device is achieved through the cooperation between components such as the oil tank, oil supply pipe and oil bladder in the maintenance device. The lubricating oil in the oil tank flows into the oil bladder through the oil supply pipe, and then is precisely sprayed onto friction parts such as the guide box and slide groove through the oil outlet pipe and oil spray block. The regulating valve can control the oil output to adapt to different working conditions. One-way valve one and one-way valve two ensure unidirectional flow of oil to prevent backflow contamination or leakage. The ring-shaped array of oil spray blocks and oil bladder can fully cover the clamping area, so that a uniform oil film is formed on the surface of each component, reducing friction and wear during operation, thereby extending the service life of the equipment and maintaining the processing accuracy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional side view structural schematic diagram of the present invention; Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 4 This is a three-dimensional enlarged structural schematic diagram of the clamping device of this utility model; Figure 5 This is a three-dimensional enlarged structural schematic diagram of the maintenance device of this utility model.

[0021] In the diagram: 1. Pan bottom; 2. Main pan; 3. Clamping device; 301. Lead box; 302. Cylinder; 303. Sliding block; 304. Connecting column; 305. Connecting block; 306. Clamping handle; 307. Slide groove; 308. Spring; 309. Buffer plate; 310. Fixed column; 311. Anti-collision plate; 4. Mounting hole; 5. Maintenance device; 501. Oil tank; 502. Oil supply pipe; 503. Oil bladder; 504. Oil outlet pipe; 505. Oil injection block; 506. Regulating valve; 6. One-way valve one; 7. One-way valve two. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0022] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-5 As shown, it illustrates a lathe chuck for preventing deformation of thin-walled ferrules in one embodiment of the present invention, including a chuck base 1, a main chuck 2 fixedly connected to the side of the chuck base 1, a clamping device 3 provided on the side of the main chuck 2, and mounting holes 4 opened on the circumferential surface of the chuck base 1.

[0028] The clamping device 3 includes a guide box 301, which is fixedly connected to the circumferential surface of the main plate 2. A cylinder 302 is provided on the side of the guide box 301. A sliding block 303 is fixedly connected to the telescopic end of the cylinder 302. A connecting post 304 is fixedly connected to the side of the sliding block 303. A connecting block 305 is fixedly connected to the end of the connecting post 304 away from the sliding block 303. A clamping handle 306 is fixedly connected to the side of the connecting block 305. A sliding groove 307 is provided on the side of the main plate 2. A spring 308 is fixedly connected to the side of the sliding groove 307. A buffer plate 309 is fixedly connected to the end of the spring 308 away from the main plate 2. A fixing post 310 is fixedly connected to the side of the main plate 2. An anti-collision plate 311 is fixedly connected to the end of the fixing post 310 away from the main plate 2.

[0029] The side of the sliding block 303 is located on the displacement trajectory of the side of the buffer plate 309. The side of the sliding block 303 is slidably connected to the side of the groove 307. This is beneficial for the sliding block 303 to achieve flexible buffering through the buffer plate 309 during the sliding process, and to avoid deformation of the thin-walled collar due to rigid collision.

[0030] The side section of the clamping handle 306 is set as an arc shape, and the inner circumferential surface of the clamping handle 306 is provided with an anti-slip groove. This is beneficial for the arc-shaped side section to better fit the shape of the sling when clamping thin-walled slings. At the same time, the anti-slip groove can increase the friction during clamping and prevent the sling from sliding or shifting during processing.

[0031] The number of fixed posts 310 is set to several and arranged in a circumferential array along the side of the main plate 2. The anti-collision plate 311 is located on the side of the clamping handle 306. This is conducive to ensuring that the anti-collision plate 311 can fully cover the clamping area through the circumferential array distribution of multiple fixed posts 310. When the clamping handle 306 is displaced due to operation error or equipment vibration, the anti-collision plate 311 can preferentially contact the edge of the collar and absorb the impact energy through elastic deformation, thus preventing the collar from directly bearing the rigid impact force.

[0032] The circumferential surface of the extension end of the cylinder 302 penetrates and slides through the side of the guide box 301. The side cross-section of the guide box 301 is set in a U-shape, which helps the cylinder 302 maintain a linear motion trajectory during extension and retraction. At the same time, the U-shaped side cross-section of the guide box 301 can provide a stable support structure for the cylinder 302, preventing it from shifting or jamming due to uneven force.

[0033] This embodiment provides a lathe chuck for preventing deformation of thin-walled ferrules. Through the cooperation between components such as the guide box 301, cylinder 302, and sliding block 303 in the clamping device 3, precise clamping and stable fixation of the thin-walled ferrules are achieved, as well as the safety and protection of the overall structure.

[0034] See in some examples Figures 1-5After the staff fixes the bottom plate 1 to the designated position on the lathe through the mounting hole 4, the thin-walled ring is then manually placed into the device. When it is about to contact the device, the thin-walled ring first touches the anti-collision plate 311, which acts as a protective device. After reaching the designated position, the cylinder 302 is activated. The extension end of the cylinder 302 pushes the sliding block 303 to slide linearly along the side of the guide box 301. During the sliding process, the side of the sliding block 303 moves relative to the side of the slide groove 307. At the same time, the side of the sliding block 303 will squeeze the buffer plate 309, causing the spring 308 to undergo elastic deformation, thereby achieving flexible buffering and avoiding deformation of the thin-walled ring due to rigid collision. The sliding block 303 drives the clamping handle 306 to move towards the thin-walled ring through the connecting column 304 and the connecting block 305. Since the side section of the clamping handle 306 is set as an arc shape and the inner circumferential surface is provided with anti-slip grooves, the clamping handle 306 can better fit the shape of the thin-walled ring and increase the friction during clamping through the anti-slip grooves to prevent the ring from sliding or shifting during processing. When multiple clamping handles 306 move synchronously to fully contact the outer wall of the thin-walled ring, the cylinder 302 stops and maintains the current pressure value. At this time, the thin-walled ring is subjected to a uniformly distributed clamping force in the circumferential direction.

[0035] refer to Figures 1-5 In some embodiments, a lathe chuck for preventing deformation of thin-walled rings also includes a maintenance device 5. The maintenance device 5 is provided on the circumferential surface of the main plate 2. The maintenance device 5 includes an oil tank 501, which is fixedly connected to the circumferential surface of the main plate 2. An oil supply pipe 502 is fixedly connected to the side of the oil tank 501. An oil bladder 503 is fixedly connected to the end of the oil supply pipe 502 away from the oil tank 501. An oil outlet pipe 504 is fixedly connected to the side of the oil bladder 503. An oil spray block 505 is fixedly connected to the end of the oil outlet pipe 504 away from the oil bladder 503. An adjusting valve 506 is provided on the circumferential surface of the oil outlet pipe 504. This helps to ensure that the oil spray block 505 can spray and maintain the clamping area with an appropriate amount of oil, avoiding wear of parts due to insufficient lubrication or waste of oil due to excessive lubrication.

[0036] One-way valve 6 is provided on the circumferential surface of the oil supply pipe 502, and one-way valve 7 is provided on the circumferential surface of the oil outlet pipe 504. This helps to ensure that the oil flows in one direction in the oil supply pipe 502 and the oil outlet pipe 504, and prevents the oil backflow from causing the maintenance device 5 to malfunction.

[0037] The top of the oil tank 501 is provided with an oil drip port. The oil tank 501 is internally connected to the oil bladder 503, and the oil tank 501 is internally connected to the oil spray block 505. This facilitates the replenishment of lubricating oil in the oil tank 501 through the oil drip port during equipment operation, while the internal through structure enables the natural flow and circulation of oil.

[0038] One-way valve 1 (6-way oil bladder 503) is unidirectionally open, and one-way valve 2 (7-way oil injection block 505) is unidirectionally open. This helps to ensure that the oil can only flow in the preset direction, avoiding pressure abnormalities or oil leakage caused by reverse flow.

[0039] The number of oil tanks 501, oil bladders 503 and oil spray blocks 505 is set in a ring array along the vertical central axis of the main disk 2. The circumferential surface of the oil spray block 505 penetrates and is fixedly connected to the side of the guide box 301, and the circumferential surface of the oil bladder 503 penetrates and is fixedly connected to the side of the guide box 301. This helps to ensure that all key parts of the clamping device can receive uniform lubrication and maintenance.

[0040] In this embodiment, through the direct cooperation of components such as the oil tank 501, oil pipe 502 and oil bladder 503 in the maintenance device 5, the automatic lubrication and maintenance function of key components of the lathe chuck is realized, which effectively extends the service life of the equipment and reduces maintenance costs.

[0041] In this embodiment, when the equipment is started, the lubricating oil in the oil tank 501 is naturally replenished to the preset level through the drip port. At this time, the one-way valve 6 is closed to prevent backflow of oil. When the cylinder 302 drives the sliding block 303 to reciprocate, the guide box 301 of the clamping device 3 rubs against the slide groove 307, triggering a pressure change in the oil bladder 503. The pressure change causes the one-way valve 6 to open, and the lubricating oil is injected into the oil bladder 503 through the oil supply pipe 502. Then, the one-way valve 7 opens, and the oil is delivered to the oil spray block 505 through the oil outlet pipe 504. The regulating valve 506 controls the amount of oil sprayed according to preset parameters, so that the lubricating oil is accurately sprayed onto the contact surface between the guide box 301 and the sliding block 303 to form a continuous lubricating film. At the same time, the multiple oil spray blocks 505 distributed in a ring array ensure that the contact area between the clamping handle 306 and the thin-walled collar, and the buffer area between the spring 308 and the buffer plate 309 are all uniformly lubricated. When the equipment stops operating, check valve 6 and check valve 7 automatically close to prevent oil from flowing back into the oil tank 501 and maintain stable pressure in the oil bladder 503. This design allows the maintenance device 5 to automatically adjust the oil injection cycle according to the movement frequency of the clamping device 3, avoiding both component wear caused by insufficient lubrication and oil waste caused by excessive lubrication, significantly improving the reliability of equipment operation and maintenance efficiency.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lathe chuck for preventing deformation of thin-walled ferrules, characterized in that, Includes a bottom plate (1), a main plate (2) is fixedly connected to the side of the bottom plate (1), a clamping device (3) is provided on the side of the main plate (2), and a mounting hole (4) is opened on the circumferential surface of the bottom plate (1). The clamping device (3) includes a guide box (301), which is fixedly connected to the circumferential surface of the main disk (2). A cylinder (302) is provided on the side of the guide box (301). A sliding block (303) is fixedly connected to the telescopic end of the cylinder (302). A connecting post (304) is fixedly connected to the side of the sliding block (303). A connecting block (305) is fixedly connected to the end of the connecting post (304) away from the sliding block (303). A clamping handle (306) is fixedly connected to the side of the connecting block (305). A sliding groove (307) is provided on the side of the main disk (2). A spring (308) is fixedly connected to the side of the sliding groove (307). A buffer plate (309) is fixedly connected to the end of the spring (308) away from the main disk (2). A fixing post (310) is fixedly connected to the side of the main disk (2). A collision protection plate (311) is fixedly connected to the end of the fixing post (310) away from the main disk (2).

2. A lathe chuck for preventing deformation of thin-walled ferrules according to claim 1, characterized in that, The side of the sliding block (303) is located on the displacement trajectory of the side of the buffer plate (309), and the side of the sliding block (303) is slidably connected to the side of the groove (307).

3. A lathe chuck for preventing deformation of thin-walled ferrules according to claim 2, characterized in that, The side section of the clamping handle (306) is set to an arc shape, and the inner circumferential surface of the clamping handle (306) is provided with an anti-slip groove.

4. A lathe chuck for preventing deformation of thin-walled ferrules according to claim 3, characterized in that, The number of fixed posts (310) is set to several and arranged in a circular array along the side of the main disk (2), and the anti-collision disk (311) is located on the side of the clamping handle (306).

5. A lathe chuck for preventing deformation of thin-walled ferrules according to claim 4, characterized in that, The circumferential surface of the telescopic end of the cylinder (302) penetrates and slides through the side of the guide box (301), and the side cross section of the guide box (301) is set in a U-shape.

6. A lathe chuck for preventing deformation of thin-walled ferrules according to claim 5, characterized in that, A maintenance device (5) is provided on the circumferential surface of the main plate (2). The maintenance device (5) includes an oil tank (501). The oil tank (501) is fixedly connected to the circumferential surface of the main plate (2). An oil supply pipe (502) is fixedly connected to the side of the oil tank (501). An oil bladder (503) is fixedly connected to the end of the oil supply pipe (502) away from the oil tank (501). An oil outlet pipe (504) is fixedly connected to the side of the oil bladder (503). An oil spray block (505) is fixed to the end of the oil outlet pipe (504) away from the oil bladder (503). A regulating valve (506) is provided on the circumferential surface of the oil outlet pipe (504).

7. A lathe chuck for preventing deformation of thin-walled ferrules according to claim 6, characterized in that, The oil delivery pipe (502) is provided with a one-way valve (6) on its circumferential surface, and the oil outlet pipe (504) is provided with a one-way valve (7) on its circumferential surface.

8. A lathe chuck for preventing deformation of thin-walled ferrules according to claim 7, characterized in that, The top of the oil tank (501) is provided with an oil drip port. The oil tank (501) and the oil bladder (503) are connected internally. The oil tank (501) and the spray block (505) are connected internally.

9. A lathe chuck for preventing deformation of thin-walled ferrules according to claim 8, characterized in that, The one-way valve (6) is unidirectionally connected to the oil bladder (503), and the one-way valve (7) is unidirectionally connected to the oil injection block (505).

10. A lathe chuck for preventing deformation of thin-walled ferrules according to claim 9, characterized in that, The number of oil tanks (501), oil bladders (503) and oil spray blocks (505) is set to several, and they are arranged in a ring array along the vertical central axis of the main disk (2). The circumferential surface of the oil spray block (505) penetrates and is fixedly connected to the side of the guide box (301), and the circumferential surface of the oil bladder (503) penetrates and is fixedly connected to the side of the guide box (301).

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