Auxiliary dismounting device for roll shaft

Abstract

The utility model relates to the technical field of roll shaft dismounting, in particular to a roll shaft auxiliary dismounting device which comprises a main body frame and a roll shaft, supporting frames are welded to the lower portions of the two sides of the main body frame, a jack is fixedly installed at the bottom of the interior of the main body frame, and a mounting plate is fixedly installed at the driving end of the jack. According to the auxiliary dismounting device for the roll shafts, the main body frame, the supporting frame, the base plate, the first limiting mechanism, the second limiting mechanism, a jack, a mounting plate, an ejector rod, a sliding sleeve and the roll shafts are used in cooperation, in the using process of the auxiliary dismounting device, dismounting operation can be conducted on the two roll shafts at the same time through symmetric arrangement of dismounting structures, the operation efficiency is improved, and the practicability is high. The overall dismounting time is shortened, and the first limiting mechanism and the second limiting mechanism can be adjusted according to roll shafts of different specifications. Therefore, no matter how the specification of the roll shaft is, the stability of the roll shaft in the dismounting process can be ensured by accurately adjusting the limiting mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to roll shaft dismantling technical field, concretely is a roll shaft auxiliary dismantling device. BACKGROUND

[0002] In modern industrial production, roll shafts and rollers are key mechanical components, widely used in steel, papermaking, textile and other industries. These roll shafts and rollers need to be regularly disassembled for maintenance or replacement due to wear, aging or maintenance needs during long-term operation.

[0003] The traditional roll shaft auxiliary dismantling device is through the bottom end clamping of the roll shaft, and then the roller at the upper end of the roll shaft is jacked out through the limiting structure. In actual use, first, the device can only operate one roll shaft at a time, which is too low in efficiency. Secondly, the limiting structure position of the roll shaft on the device is fixed and cannot be adjusted in distance, resulting in instability of the roll shaft during operation and easy shaking, increasing the difficulty and risk of operation and being inconvenient for people to use. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a roll shaft auxiliary dismantling device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A roll shaft auxiliary dismantling device comprises:

[0007] The main body frame is provided with a support frame on the lower side of each side, a jack is fixedly installed at the bottom of the inside of the main body frame, an installation plate is fixedly installed on the driving end of the jack, a sliding sleeve is fixedly inserted and installed on the top of the main body frame, a top rod is fixedly installed on the top of the installation plate, the top rod is in sliding connection with the sliding sleeve, and the top end of the top rod extends above the top of the main body frame.

[0008] The top end of the top rod is provided with a second limiting mechanism, the front and back of the main body frame are provided with a first limiting mechanism, and the lower side of the front and back of the main body frame is welded with a backing plate.

[0009] Preferably, the first limiting mechanism comprises two horizontal rails symmetrically fixed on the front and back of the main frame, a first threaded rod rotatably installed in the horizontal rail, left and right threads symmetrically arranged on the outer wall of the first threaded rod, a motor fixed on one end of the horizontal rail, the driving end of the motor penetrating through the horizontal rail and fixedly connected with one end of the first threaded rod, and an adjusting block symmetrically sleeved on the outer wall of the first threaded rod and slidably connected with the horizontal rail.

[0010] Preferably, the second limiting mechanism comprises a rectangular plate fixedly installed on the top end of the top rod, a through slot formed in the rectangular plate, a second threaded rod rotatably installed in the through slot, left and right threads symmetrically arranged on the outer wall of the second threaded rod, a movable block symmetrically sleeved on the outer wall of the second threaded rod and slidably connected with the through slot, a top plate fixedly installed on the front and back of the movable block, and a hand wheel fixed on one end of the second threaded rod.

[0011] Preferably, the opposite surfaces of the two clamping plates are provided with arc-shaped grooves, and a plurality of rolling balls are movably installed in the inner walls of the arc-shaped grooves.

[0012] Preferably, the adjusting block is provided with a threaded hole matched with the first threaded rod, and the adjusting block is threadedly connected with the first threaded rod through the threaded hole.

[0013] Preferably, the movable block is provided with a threaded hole matched with the first threaded rod, and the movable block is threadedly connected with the first threaded rod through the threaded hole.

[0014] Compared with the prior art, the device has the advantages that:

[0015] 1. The device comprises a main frame, a supporting frame, a pad, a first limiting mechanism, a second limiting mechanism, a jack, a mounting plate, a top rod, a sliding sleeve and a roller shaft, and the device can simultaneously disassemble two roller shafts at a time, improving the operation efficiency and shortening the overall disassembly time.

[0016] 2、The utility model discloses a cooperation of arc -shaped groove and ball, and the clamp plate is clamped and is limited to the roll shaft through the arc -shaped groove, the arc -shaped groove is more in line with the outer wall of roll shaft, and the limiting effect is better, and simultaneously in the early stage of dismounting, the roll shaft is driven to go up with the second limiting mechanism, will make the roll shaft and the ball on the inner wall of arc -shaped groove rolling contact, both ensure that through the clamp plate can effectively clamping effect of roll shaft maintains the upright state, and also does not influence the vertical movement effect of roll shaft between two clamp plates, improves the stability and reliability of device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of roll shaft auxiliary dismounting device of an embodiment of the utility model.

[0018] Figure 2 It is the front view structural schematic diagram of roll shaft auxiliary dismounting device of an embodiment of the utility model.

[0019] Figure 3 It is the structural schematic diagram of first limiting mechanism of an embodiment in the utility model.

[0020] Figure 4 It is the structural schematic diagram of second limiting mechanism of an embodiment in the utility model.

[0021] In the drawing: 1, main body frame;2, support frame;3, backing plate;4, first limiting mechanism;5, second limiting mechanism;6, jack;7, mounting plate;8, top rod;9, sliding sleeve;10, roll shaft;11, clamp plate;12, arc -shaped groove;13, cross rail;14, adjusting block;15, ball;16, first threaded rod;17, motor;18, top plate;19, movable block;20, rectangular plate;21, second threaded rod;22, hand wheel;23, through slot. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the following further describes the utility model in combination with specific implementation manners.

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figures 1-4 The utility model provides a kind of roll shaft auxiliary dismounting device, it includes:

[0025] The body frame 1 is provided with the support frame 2 on the lower side of both sides, the jack 6 is fixedly installed on the bottom of the body frame 1, the mounting plate 7 is fixedly installed on the driving end of the jack 6, the sliding sleeve 9 is fixedly inserted and installed on the top of the body frame 1, the top rod 8 is fixedly installed on the top of the mounting plate 7 and is in sliding connection with the sliding sleeve 9, and the top end of the top rod 8 extends above the top of the body frame 1;

[0026] The top end of the top rod 8 is provided with the second limiting mechanism 5, the front face and the back face of the body frame 1 are provided with the first limiting mechanism 4, and the gusset plate 3 is welded on the lower side of the front face and the back face of the body frame 1.

[0027] In one or more embodiments of the utility model, the first limiting mechanism 4 includes the cross rail 13, the number of cross rails 13 is two, the two cross rails 13 are symmetrically distributed and fixedly installed on the front face and the back face of the body frame 1, the first screw rod 16 is rotatably installed in the cross rail 13, the left-hand thread and the right-hand thread that are symmetrically distributed are arranged on the outer wall of the first screw rod 16, the motor 17 is fixedly installed on one end of the cross rail 13, the driving end of the motor 17 penetrates through the cross rail 13 and extends to the inside of the cross rail 13 and is fixedly connected with one end of the first screw rod 16, the adjusting block 14 that is symmetrically distributed is sleeved on the outer wall of the first screw rod 16, the adjusting block 14 is in sliding connection with the cross rail 13, the clamping plate 11 is fixedly installed on the side of the adjusting block 14 away from the body frame 1, and the lower end clamping effect of the roller shaft 10 of different specifications is achieved.

[0028] In one or more embodiments of the utility model, the second limiting mechanism 5 includes the rectangular plate 20, the rectangular plate 20 is fixedly installed on the top end of the top rod 8, the through groove 23 is formed in the rectangular plate 20, the second screw rod 21 is rotatably installed in the through groove 23, the left-hand thread and the right-hand thread that are symmetrically distributed are arranged on the outer wall of the second screw rod 21, the movable block 19 that is symmetrically distributed is sleeved on the outer wall of the second screw rod 21, the movable block 19 is in sliding connection with the through groove 23, the top plate 18 is fixedly installed on the front face and the back face of the movable block 19, one end of the second screw rod 21 penetrates through one side of the inner wall of the through groove 23 and extends to one side outside the rectangular plate 20, the hand wheel 22 is fixedly installed on one end of the second screw rod 21, the roller on the roller shaft 10 can be directly lifted out and disassembled through the vertical movement of the second limiting mechanism 5, and the operation of the roller shaft 10 of different specifications can be adapted through the adjustability of the top plate 18 on the second limiting mechanism 5.

[0029] In one preferred embodiment, the arc-shaped grooves 12 are formed in the opposite sides of the two clamping plates 11, and the plurality of rolling balls 15 are movably installed on the inner walls of the arc-shaped grooves 12, so that the roller shaft 10 can be effectively clamped and kept in an upright state by the clamping plate 11, and the vertical movement effect of the roller shaft 10 between the two clamping plates 11 is not affected, and the stability and reliability of the device are improved.

[0030] In one or more embodiments, the adjusting block 14 is provided with a threaded hole adapted to the first threaded rod 16, and the adjusting block 14 is threadedly connected with the first threaded rod 16 through the threaded hole provided thereon, and the threaded connection provides a reliable fixing mode. The adjusting block 14 moves when the first threaded rod 16 rotates, and can be stably fixed at a desired position, reducing the loosening or displacement phenomenon that may occur during adjustment, thereby improving the stability of the overall device.

[0031] In one or more preferred embodiments, the movable block 19 is provided with a threaded hole adapted to the first threaded rod 16, and the movable block 19 is threadedly connected with the first threaded rod 16 through the threaded hole provided thereon.

[0032] The electric elements appearing in the application are all externally connected with power supply and control switch during use. During use, the roll shafts 10 to be processed are placed in vertical state on the top of the base plate 3, and the roll shafts 10 will pass between the two clamping plates 11 on the first limiting mechanism 4 and between the two top plates 18 on the second limiting mechanism 5. Since the dismounting structure of the device is symmetrically arranged, two roll shafts 10 can be placed at one time for dismounting operation. After the roll shafts 10 are placed, the lower end of the roll shaft 10 is first limited, and the control motor 17 starts to work. The driving end of the motor 17 drives the first threaded rod 16 to rotate, and through the threaded transmission of the left-handed thread and the right-handed thread on the first threaded rod 16 and the sliding relationship between the adjusting block 14 and the cross rail 13, the two adjusting blocks 14 can simultaneously move relative to each other or move in opposite directions. The movement of the adjusting block 14 drives the clamping plate 11 to move. When the two clamping plates 11 move relative to each other, the spacing between the two clamping plates 11 will adapt to the outer diameter of the roll shaft 10, so that the roll shaft 10 stands vertically on the top of the base plate 3. The limiting of the clamping plate 11 to the roll shaft 10 is under the premise of ensuring the normal vertical movement of the roll shaft 10. Another first limiting mechanism 4 is controlled in the same way to limit another roll shaft 10. Then the worker manually rotates the hand wheel 22. The rotation of the hand wheel 22 drives the second threaded rod 21 to rotate. Through the threaded transmission of the left-handed thread and the right-handed thread on the second threaded rod 21 and the sliding relationship between the movable block 19 and the through slot 23, the two movable blocks 19 simultaneously move relative to each other or move in opposite directions. The movement of the movable block 19 drives the two groups of top plates 18 to move, adjusts the spacing of the two groups of top plates 18, so that the spacing between the two top plates 18 is slightly larger than the outer diameter of the roll shaft 10 and does not contact the outer wall of the roll shaft 10, avoiding damage to the outer wall of the roll shaft 10 in the subsequent roll dismounting process on the roll shaft 10. The subsequent control of the jack 6 starts to work. The driving end of the jack 6 drives the mounting plate 7 to move vertically. The mounting plate 7 drives the second limiting mechanism 5 to move through the top rod 8. The second limiting mechanism 5 is controlled to move upward. The top plate 18 on the second limiting mechanism 5 will directly abut against the bottom of the roll on the roll shaft 10 and drive the entire roll shaft 10 to move upward until the lower end of the roll shaft 10 is clamped by the clamping plate 11 and cannot continue to move upward. At this time, the continuous upward movement of the second limiting mechanism 5 will directly lift the roll from the roll shaft 10, completing the dismounting operation of the roll shaft 10.

[0033] The relative movement of the two clamping plates 11 on the first limiting mechanism 4 will clamp and limit the roller shaft 10 through the arc-shaped slot 12 when limiting the roller shaft 10, the arc-shaped slot 12 is more matched with the outer wall of the roller shaft 10, the limiting effect is better, and meanwhile, the upward movement of the roller shaft 10 driven by the second limiting mechanism 5 in the initial stage of disassembly will make the roller shaft 10 rollingly contact with the rolling balls 15 on the inner wall of the arc-shaped slot 12, which not only ensures that the roller shaft 10 can be effectively clamped by the clamping plates 11 to keep the vertical state, but also does not affect the vertical movement effect of the roller shaft 10 between the two clamping plates 11, thereby improving the stability and reliability of the device.

[0034] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A roll shaft assisted dismounting device, characterized by, It includes: The body frame (1) and the roller shaft (10), the lower side of both sides of the body frame (1) is welded with support frame (2), the bottom of the inside of the body frame (1) is fixedly installed with jack (6), the driving end of the jack (6) is fixedly installed with mounting plate (7), the top of the body frame (1) is fixedly inserted and installed with sliding sleeve (9), the top of the mounting plate (7) is fixedly installed with top rod (8), and the top rod (8) is slidably connected with the sliding sleeve (9), and the top end of the top rod (8) extends above the top of the body frame (1); The top end of the top rod (8) is provided with a second limiting mechanism (5), the front and back of the body frame (1) are provided with a first limiting mechanism (4), and the lower side of the front and back of the body frame (1) is welded with a backing plate (3).

2. A roll assist dismounting device according to claim 1, characterized in that The first limiting mechanism (4) includes a cross rail (13), and the number of the cross rail (13) is two, the two cross rails (13) are symmetrically fixedly installed on the front and back of the body frame (1), a first threaded rod (16) is rotatably installed in the cross rail (13), left-handed threads and right-handed threads are symmetrically arranged on the outer wall of the first threaded rod (16), a motor (17) is fixedly installed at one end of the cross rail (13), and the driving end of the motor (17) penetrates through the cross rail (13) and extends to the inside of the cross rail (13) and is fixedly connected with one end of the first threaded rod (16), symmetrically distributed adjusting blocks (14) are sleeved on the outer wall of the first threaded rod (16), and the adjusting blocks (14) are slidably connected with the cross rail (13), and a clamping plate (11) is fixedly installed on the side of the adjusting block (14) away from the body frame (1).

3. A roll assist dismounting device according to claim 2, characterized in that: Arc-shaped grooves (12) are formed in the opposite sides of the two clamping plates (11), and a plurality of rolling balls (15) are movably installed on the inner wall of the arc-shaped grooves (12).

4. The roll assist dismounting device of claim 2, wherein: Threaded holes are formed in the adjusting blocks (14) and matched with the first threaded rod (16), and the adjusting blocks (14) are threadedly connected with the first threaded rod (16) through the threaded holes.

5. The roll assist dismounting device of claim 2, wherein: The second limiting mechanism (5) includes a rectangular plate (20) fixedly installed at the top end of the top rod (8), a through groove (23) is formed in the rectangular plate (20), a second threaded rod (21) is rotatably installed in the through groove (23), left-handed threads and right-handed threads are symmetrically arranged on the outer wall of the second threaded rod (21), symmetrically distributed movable blocks (19) are sleeved on the outer wall of the second threaded rod (21), and the movable blocks (19) are slidably connected with the through groove (23), top plates (18) are fixedly installed on the front and back of the movable blocks (19), one end of the second threaded rod (21) penetrates through one side of the inner wall of the through groove (23) and extends to one side outside the rectangular plate (20), and a hand wheel (22) is fixedly installed at one end of the second threaded rod (21).

6. A roll assist dismounting device according to claim 5, characterized in that: A threaded hole is formed in the movable block (19) and is adapted to the first threaded rod (16), and the movable block (19) is threadedly connected with the first threaded rod (16) through the threaded hole formed therein.

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