Bearing disassembling and assembling equipment suitable for continuous spinning small processing roller

Abstract

A supporting plate is arranged on a machine frame, a clamping mechanism and a shaft pulling device are arranged on the supporting plate, when the continuous spinning small processing roller bearing is detached or installed, the clamping mechanism clamps a small processing roller, sliding blocks on the two sides of a guide rail I of a fixing mechanism move towards the middle, and the small processing roller is pulled out of the shaft pulling device. By arranging the pulling-out mechanism, an output shaft of a hydraulic cylinder stretches out to drive a hydraulic cylinder top head base to move in the direction away from the small processing roller, and therefore the joint bearing can be pulled out through the pulling-out mechanism. The transmission column on the top sleeve of the hydraulic cylinder pulls the sleeve frame to move in the direction away from the small processing roller, so that the fixing mechanism is driven to move in the direction away from the small processing roller, a bearing on the small processing roller is pulled out, the fixing mechanism is driven to move through the hydraulic cylinder, the structure is simple, operation is convenient, and the bearing assembly of the continuous spinning small processing roller can be rapidly disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing disassembly and assembly equipment, in particular to a bearing disassembly and assembly equipment suitable for small processing rollers in continuous spinning. Background Art

[0002] The small processing rollers of continuous spinning are used to assist the large processing rollers in driving the filaments to move in the coagulation area, leaching area, sizing area, and drying area to complete the chemical and physical reactions of the filaments in each area. Therefore, the small processing rollers have been operating under acidic and high-humidity conditions, and the working environment is harsh. In addition, they operate 24 hours a day and have high speeds during operation, so the bearings are severely worn and need to be replaced every two months on average. Figure 6 The figure shows the structure of a small processing roller, including a roller body and a bearing assembly. The roller bodies at both ends of the roller body are respectively provided with bearing sleeves along the length line of the small processing roller. The bearing assembly includes a small roller spinning surface shaft, a small roller bearing and a spherical bearing. One end of the small roller spinning surface shaft extends into the bearing sleeve. A small roller bearing is sleeved on one end of the small roller spinning surface shaft in the bearing seat. The small roller bearing is clearance-matched with the inner wall of the bearing sleeve. A spherical bearing is sleeved on one end of the small roller spinning surface shaft outside the bearing seat.

[0003] The following problems mainly exist during the disassembly and assembly of bearing components:

[0004] 1. The small processing roller has been running under acidic and high humidity conditions, and its joint bearings are seriously corroded. When it is taken off the platform for maintenance, the joint bearings are often unable to be removed. The current situation is to cut off the small roller spinning shaft and replace the small roller bearings, resulting in serious waste of materials.

[0005] 2. During the assembly process, hammers are often used to force installation, which can easily lead to improper installation and low installation accuracy. In more serious cases, the bearings and bearing seats may be damaged, so that the small processing rollers will heat up seriously and wear more when running at high speed.

[0006] 3. When the bearing is installed, the small processing roller is usually placed at a 45° angle, which may easily cause the concentricity of the bearing and the bearing seat to fail to meet the assembly requirements, and may easily cause increased vibration and noise when the small processing roller rotates at high speed.

[0007] 4. When disassembling the bearing, it is necessary to use a vise to fix the small processing roller. The tightness of the fixation depends entirely on the worker's feeling. There is no fixed standard, which can easily cause deformation of the surface of the small processing roller, affect the movement of the wire strip, and thus affect the yield rate.

[0008] 5. The replacement cycle of a small processing roller is long and the maintenance efficiency is not high.

[0009] The utility model patent with patent publication number CN219152071U discloses a bearing disassembly device, including a base, a hydraulic cylinder and a vertical support, two vertical supports are symmetrically arranged on the left and right sides of the base, a top plate is arranged between the two horizontal supports, the top plate is connected to the telescopic end of the hydraulic cylinder, the hydraulic cylinder is fixed to the upper surface of the sliding plate through a cylinder seat, the sliding plate is slidably connected to the vertical support through an L-shaped sliding block arranged at the end, a pressure head mounting plate is arranged on the lower surface of the sliding plate, a lower pressure head is arranged on the lower surface of the pressure head mounting plate, a movable frame is arranged between the lower pressure head and the base, the movable frame is arranged on the outer side surface of the fixed shaft, the fixed shaft is arranged through the adjustment hole on the vertical support, and the bearing seat plate is connected to the movable frame by bolts. The device replaces manual labor with machinery, improves the efficiency of bearing disassembly, reduces the labor intensity of manual labor, avoids the step of changing the puller clamp model, and expands the scope of use of the device.

[0010] However, the bearings removed by the patent are different from the bearing structure of this patent, and cannot be applied to the joint bearings of the patent and cannot be removed normally; and the small processing roller has high requirements on the roller surface, so the roller body needs to be fixed separately and the roller structure cannot be damaged. If the patent is removed, the surface of the small roller will be damaged, causing the small processing roller to be scrapped as a whole.

[0011] Therefore, providing a bearing disassembly and assembly device suitable for continuous spinning small processing rollers is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0012] The utility model aims to provide a bearing disassembly and assembly device suitable for small processing rollers for continuous spinning, to improve the installation accuracy of the small processing roller bearings during the assembly process, to reduce the possibility of the bearings and bearing seats being damaged during the installation process; to unify the installation standards, to improve the identity of the spinning machines, to avoid the influence of the spinning process due to artificial installation differences, and to improve the yield rate of the yarns.

[0013] In order to achieve the above-mentioned object of the invention, the technical solution of the present invention is as follows:

[0014] A device for disassembling and assembling bearings of small processing rollers for continuous spinning, comprising a frame, a clamping mechanism and a shaft pulling device.

[0015] A support plate is horizontally arranged on the frame.

[0016] The clamping mechanism comprises an upper fixing plate and a lower fixing plate, wherein the upper fixing plate is fixedly mounted above the support plate, and the lower fixing plate is fixedly mounted below the mounting plate, wherein a small roller clamp is arranged on the upper fixing plate, and a hydraulic cylinder I is arranged on the lower fixing plate, wherein an output shaft of the hydraulic cylinder I is fixedly connected to the small roller clamp;

[0017] The shaft pulling device includes a fixing mechanism, which is installed on the support plate through a sleeve frame, and the sleeve frame is slidably matched with the support plate. The fixing mechanism includes a slider and a guide rail I, and the guide rail I is fixedly connected to the sleeve frame along the width direction of the frame. Slide blocks are respectively provided on both sides of the guide rail I, and clamping pieces for clamping the spherical bearing are respectively provided near the center position of the sliders on both sides;

[0018] The shaft pulling device also includes a pulling mechanism, which includes a hydraulic cylinder II, a head seat, a head sleeve and a transmission column. The hydraulic cylinder II is fixedly installed on the support plate, and the output shaft of the hydraulic cylinder II is arranged in a direction away from the fixing mechanism. The top end of the output shaft of the hydraulic cylinder II is fixedly connected to the head seat, and the head seat is fixedly connected to the head sleeve. Transmission columns are arranged on both sides of the head sleeve, and the transmission columns are fixedly connected to the sleeve frame.

[0019] The small roller clamp comprises a fixed pressure plate, a movable pressure plate and a guide rail II. The fixed pressure plate is fixedly connected to the upper fixed plate, the movable pressure plate is connected to the upper fixed plate through the guide rail II, and the output shaft of the hydraulic cylinder I is fixedly connected to the bottom of the movable pressure plate.

[0020] The hydraulic cylinder II is fixedly connected to the support plate through a fixed seat, the fixed seat includes two fixed plates, a guide column is arranged between the two fixed plates, the guide column is horizontally arranged along the length direction of the frame, the two fixed plates are perpendicular to the guide column, the hydraulic cylinder II is fixedly installed on the fixed plate on the side away from the clamping mechanism, the output shaft of the hydraulic cylinder II passes through the center position of the fixed plate on the side away from the clamping mechanism and is fixedly connected to the head seat, a movable sleeve is arranged on the guide column, and the sleeve frame is fixedly connected to the movable sleeve.

[0021] The clamping mechanism is provided with two or more groups along the length direction of the frame, so as to clamp the small processing roller more stably.

[0022] The guide rail I of the fixing mechanism is a screw guide rail, and the thread on the screw of the screw guide rail is a trapezoidal thread, which can greatly improve the load capacity and self-locking ability of the thread; the thread at one end of the screw is left-handed, and the thread at the other end of the screw is right-handed. Due to the different rotation directions, it can be ensured that the slider can move towards and away from each other when the screw rotates in one direction.

[0023] Beneficial effects of the utility model:

[0024] 1. In the utility model, a support plate is arranged on the frame, and a clamping mechanism and a shaft pulling device are arranged on the support plate. When disassembling or installing the small processing roller bearing of continuous spinning, the output shaft of the hydraulic cylinder I on the lower fixed plate is pushed out to drive the small roller clamp to clamp the small processing roller; the sliders on both sides of the guide rail I of the fixing mechanism are moved toward the middle, thereby driving the clamping members on both sides to close and clamp the joint bearing, and the fixing mechanism is slidably matched with the support plate, and the fixing mechanism can be pulled out in a direction away from the small processing roller or squeezed in a direction close to the small processing roller, thereby realizing the disassembly and assembly of the small processing roller bearing of continuous spinning.

[0025] 2. In the utility model, a pull-out mechanism is provided, and the output shaft of the hydraulic cylinder II is extended to drive the head seat to move away from the small processing roller. The transmission column on the head sleeve pulls the sleeve frame to move away from the small processing roller, thereby driving the fixing mechanism to move away from the small processing roller, and the bearing on the small processing roller is pulled out. When installing the bearing, the output shaft of the hydraulic cylinder II can be retracted, and the fixing mechanism is driven to move by the hydraulic cylinder II. The structure is simple and the operation is convenient, and the disassembly and assembly of the bearing assembly of the small processing roller for continuous spinning can be completed quickly.

[0026] 3. In the utility model, a guide column is provided between the front fixed plate and the rear fixed plate, a movable sleeve is provided on the guide column, and the sleeve frame is fixedly connected to the movable sleeve to prevent the sleeve frame from deviating from the direction when moving under the drive of the hydraulic cylinder II, thereby improving the installation accuracy of the small processing roller bearing during the assembly process and reducing the possibility of the bearing and the bearing seat being damaged during the installation process.

[0027] 4. In the utility model, the guide rail I of the fixing mechanism is a ball screw guide rail, and the thread on the ball screw is a trapezoidal thread. The unique shape of the trapezoidal thread can generate greater pressure and a larger surface contact area, thereby improving the friction performance, preventing the thread from loosening and falling off, and greatly improving the load capacity and self-locking ability of the thread. The thread at one end of the screw is left-handed, and the thread at the other end of the screw is right-handed. Due to the different rotation directions, it can be ensured that the slider can move towards and away from each other when the screw rotates in one direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The utility model is a schematic diagram of the structure of the small processing roller bearing disassembly and assembly equipment suitable for continuous spinning.

[0029] Figure 2 This is a schematic diagram of the frame structure of the utility model.

[0030] Figure 3 It is a schematic diagram of the structure of the clamping mechanism of the utility model.

[0031] Figure 4 It is a schematic diagram of the fixing mechanism structure of the utility model.

[0032] Figure 5 It is a schematic diagram of the structure of the extraction mechanism of the utility model.

[0033] Figure 6 It is a schematic diagram of the structure of the small continuous spinning processing roller of the utility model.

[0034] Among them, 1. frame; 11. support plate; 2. clamping mechanism; 21. upper fixed plate; 22. lower fixed plate; 23. small roller clamp; 231. fixed pressure plate; 232. movable pressure plate; 3. shaft pulling device; 31. fixing mechanism; 311. slider; 312. clamping piece; 313. sleeve rack; 32. pulling mechanism; 321. head seat; 322. transmission column; 323. guide column; 324. head sleeve; 325. movable sleeve; 4. small processing roller; 41. roller body; 42. bearing assembly; 43. bearing sleeve seat; 421. small roller spinning surface shaft; 422. small roller bearing; 423. spherical bearing. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the embodiments, but the implementation manner of the present invention is not limited thereto.

[0036] Example 1

[0037] This embodiment provides a Figure 1 The bearing disassembly and assembly equipment for small processing rollers suitable for continuous spinning includes a frame 1, a clamping mechanism 2 and a shaft pulling device 3, as shown in FIG. Figure 2 As shown, a support plate 11 is horizontally arranged on the frame 1. Figure 3 As shown, the clamping mechanism 2 includes an upper fixing plate 21 and a lower fixing plate 22, wherein the upper fixing plate 21 is fixedly mounted above the support plate 11, and the lower fixing plate 22 is fixedly mounted below the mounting plate, a small roller clamp 23 is disposed on the upper fixing plate 21, and a hydraulic cylinder 1 is disposed on the lower fixing plate 22, and an output shaft of the hydraulic cylinder 1 is fixedly connected to the small roller clamp 23;

[0038] The shaft pulling device 3 includes a fixing mechanism 31, such as Figure 4 As shown, the fixing mechanism 31 is installed on the support plate 11 through a sleeve frame 313, and the sleeve frame 313 is slidably matched with the support plate 11. The fixing mechanism 31 includes a slider 311 and a guide rail I. The guide rail I is fixedly connected to the sleeve frame 313 along the width direction of the frame 1. Sliders 311 are respectively provided on both sides of the guide rail I. Clamping pieces 312 for clamping the spherical bearing 423 are respectively provided near the center position of the sliders 311 on both sides; the shaft pulling device 3 also includes a pulling mechanism 32;

[0039] like Figure 5As shown, the pulling mechanism 32 includes a hydraulic cylinder II, a head seat 321, a head sleeve 324 and a transmission column 322. The hydraulic cylinder II is fixedly installed on the support plate 11. The output shaft of the hydraulic cylinder II is arranged in a direction away from the fixing mechanism 31. The top end of the output shaft of the hydraulic cylinder II is fixedly connected to the head seat 321. The head seat 321 is fixedly connected to the head sleeve 324. Transmission columns 322 are arranged on both sides of the head sleeve 324. The transmission columns 322 are fixedly connected to the sleeve frame 313. The clamping mechanism 2 is arranged in two groups along the length direction of the frame 1.

[0040] The small roller clamp 23 includes a fixed pressure plate 231, a movable pressure plate 232 and a guide rail II. The fixed pressure plate 231 is fixedly connected to the upper fixed plate 21, the movable pressure plate 232 is connected to the upper fixed plate 21 through the guide rail II, and the output shaft of the hydraulic cylinder I is fixedly connected to the bottom of the movable pressure plate 232; the small processing roller 4 is as shown in FIG. Figure 6 As shown, it includes a roller body 41 and a bearing assembly 42. Bearing sleeves 43 are respectively arranged inside the roller body 41 at both ends of the roller body 41 along the length line of the small processing roller 4. The bearing assembly 42 includes a small roller spinning surface shaft 421, a small roller bearing 422 and a joint bearing 423. One end of the small roller spinning surface shaft 421 extends into the bearing sleeve 43. A small roller bearing 422 is sleeved on one end of the small roller spinning surface shaft 421 in the bearing seat. The small roller bearing 422 is clearance-matched with the inner wall of the bearing sleeve 43. A joint bearing 423 is sleeved on one end of the small roller spinning surface shaft 421 outside the bearing seat.

[0041] In this embodiment, the small processing roller 4 whose bearing needs to be removed or installed is placed in the gap between the fixed pressure plate 231 and the movable pressure plate 232 of the small roller clamp 23, and the hydraulic cylinder I on the lower mounting plate is started. The output shaft of the hydraulic cylinder I extends upward, thereby driving the movable pressure plate 232 to move upward, thereby clamping the small processing roller 4. The clamping mechanism 2 is provided with two groups along the length direction of the frame 1, which can clamp the small processing roller 4 more stably; after clamping the small processing roller 4, the sliders 311 on both sides of the guide rail I of the fixing mechanism 31 are moved toward the middle, thereby driving the clamping members 312 on both sides to close, and the clamping members 312 are closed to clamp the joint bearing 42 3. The fixing mechanism 31 is slidably matched with the support plate 11. By setting a pulling mechanism 32, the output shaft of the hydraulic cylinder II is extended to drive the head seat 321 to move away from the small processing roller 4. The transmission column 322 on the head sleeve 324 pulls the sleeve frame 313 to move away from the small processing roller 4, thereby driving the fixing mechanism 31 to move away from the small processing roller 4, and pulling out the bearing on the small processing roller 4. When installing the bearing, the output shaft of the hydraulic cylinder II can be retracted, and the fixing mechanism 31 is driven to move by the hydraulic cylinder II. The structure is simple and the operation is convenient, and the disassembly and assembly of the bearing assembly 42 of the small processing roller 4 for continuous spinning can be completed quickly.

[0042] Example 2

[0043] Compared with the embodiment 1, the present embodiment is different in that, in the present embodiment, the hydraulic cylinder II of the pulling mechanism 32 is fixedly connected to the support plate 11 through a fixed seat, the fixed seat includes two fixed plates, a guide column 323 is arranged between the two fixed plates, the guide column 323 is arranged horizontally along the length direction of the frame 1, the two fixed plates are perpendicular to the guide column 323, the hydraulic cylinder II is fixedly installed on the fixed plate away from the clamping mechanism 2, the output shaft of the hydraulic cylinder II passes through the center position of the fixed plate away from the clamping mechanism 2 and is fixedly connected to the head seat 321, a movable sleeve 325 is arranged on the guide column 323, and the sleeve frame 313 is fixedly connected to the movable sleeve 325;

[0044] The guide rail I of the fixing mechanism 31 is a ball screw guide rail, and the thread on the screw of the ball screw guide rail is a trapezoidal thread, which can greatly improve the load capacity and self-locking ability of the thread; the thread at one end of the screw is left-handed, and the thread at the other end of the screw is right-handed. Due to the different rotation directions, it can be ensured that the slider 311 can move towards and away from each other when the screw rotates in one direction.

[0045] In this embodiment, a guide column 323 is provided between the front fixed plate and the rear fixed plate, and a movable sleeve 325 is provided on the guide column 323. The sleeve frame 313 is fixedly connected to the movable sleeve 325 to prevent the sleeve frame 313 from deviating from the direction when moving under the drive of the hydraulic cylinder II, thereby improving the installation accuracy of the bearing of the small processing roller 4 during the assembly process and reducing the possibility of damage to the bearing and the bearing seat during the installation process; the guide rail I of the fixing mechanism 31 is a ball screw guide rail, and the thread on the ball screw is a trapezoidal thread. The unique shape of the trapezoidal thread can generate greater pressure and a larger surface contact area, thereby improving the friction performance, preventing the thread from loosening and falling off, and greatly improving the load capacity and self-locking ability of the thread. The thread at one end of the screw is left-handed and the thread at the other end of the screw is right-handed. Due to the different rotation directions, it can be ensured that the slider 311 can move towards and away from each other when the screw rotates in one direction, which is more convenient and quick.

[0046] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A device for disassembling and assembling bearings of small processing rollers suitable for continuous spinning, characterized in that: The invention comprises a frame (1), a clamping mechanism (2) and a shaft pulling device (3), wherein a support plate (11) is horizontally arranged on the frame (1); the clamping mechanism (2) comprises an upper fixing plate (21) and a lower fixing plate (22), wherein the upper fixing plate (21) is fixedly mounted above the support plate (11), and the lower fixing plate (22) is fixedly mounted below the mounting plate; a small roller clamp (23) is arranged on the upper fixing plate (21), and a hydraulic cylinder I is arranged on the lower fixing plate (22), wherein the output shaft of the hydraulic cylinder I is fixedly connected to the small roller clamp (23); the shaft pulling device (3) comprises a fixing mechanism (31), wherein the fixing mechanism (31) is mounted on the support plate (11) via a sleeve frame (313), wherein the sleeve frame (313) is slidably matched with the support plate (11), and wherein the fixing mechanism (31) comprises a slider (311) and a guide rail I, wherein the guide rail I extends along the width of the frame (1). The guide rail I is fixedly connected to the sleeve frame (313) in the direction of rotation; sliders (311) are respectively provided on both sides of the guide rail I; clamping pieces (312) for clamping the joint bearing (423) are respectively provided near the center of the sliders (311) on both sides; the shaft pulling device (3) further comprises a pulling mechanism (32); the pulling mechanism (32) comprises a hydraulic cylinder II, a head seat (321), a head sleeve (324) and a transmission column (322); the hydraulic cylinder II is fixedly mounted on the support plate (11); the output shaft of the hydraulic cylinder II extends in a direction away from the fixing mechanism (31); the top end of the output shaft of the hydraulic cylinder II is fixedly connected to the head seat (321); the head seat (321) is fixedly connected to the head sleeve (324); transmission columns (322) are provided on both sides of the head sleeve (324); and the transmission columns (322) are fixedly connected to the sleeve frame (313).

2. The bearing disassembly and assembly equipment for small processing rollers for continuous spinning according to claim 1, characterized in that: The small roller clamp (23) comprises a fixed pressing plate (231), a movable pressing plate (232) and a guide rail II, wherein the fixed pressing plate (231) is fixedly connected to the upper fixed plate (21), the movable pressing plate (232) is connected to the upper fixed plate (21) via the guide rail II, and the output shaft of the hydraulic cylinder I is fixedly connected to the bottom of the movable pressing plate (232).

3. The bearing disassembly and assembly equipment for small processing rollers for continuous spinning according to claim 1, characterized in that: The hydraulic cylinder II of the pulling mechanism (32) is fixedly connected to the support plate (11) via a fixed seat, the fixed seat comprising two fixed plates, a guide column (323) being arranged between the two fixed plates, the guide column (323) being arranged horizontally along the length direction of the frame (1), the two fixed plates being perpendicular to the guide column (323), the hydraulic cylinder II being fixedly mounted on the fixed plate on the side away from the clamping mechanism (2), the output shaft of the hydraulic cylinder II passing through the center position of the fixed plate on the side away from the clamping mechanism (2) and being fixedly connected to the head seat (321), the guide column (323) being provided with a movable sleeve (325), and the sleeve frame (313) being fixedly connected to the movable sleeve (325).

4. The bearing disassembly and assembly equipment for small processing rollers for continuous spinning according to claim 1, characterized in that: The clamping mechanisms (2) are arranged in two or more groups along the length direction of the frame (1).

5. The bearing disassembly and assembly equipment for small processing rollers for continuous spinning according to claim 1, characterized in that: The guide rail I of the fixing mechanism (31) is a screw guide rail.

6. The disassembly and assembly equipment for small processing roller bearings for continuous spinning according to claim 5, characterized in that: The thread on the screw rod of the screw rod guide rail is a trapezoidal thread.

7. The bearing disassembly and assembly equipment for small processing rollers for continuous spinning according to claim 5, characterized in that: The thread at one end of the screw rod is left-handed, and the thread at the other end of the screw rod is right-handed.

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