A device for replacing bearings of rollers in a strip rolling line

Abstract

The utility model provides a strip rolling line roller bearing replacement device, comprising a U-shaped frame; a support platform, arranged at the bottom middle position of the U-shaped frame for supporting the roller; a clamping mechanism, arranged on the two opposite inner walls of the U-shaped frame for clamping the central axis ends on both sides of the roller; and a moving installation and removal mechanism, comprising a lower push plate, an upper push plate, a longitudinal moving mechanism and a transverse moving mechanism; the upper push plate is rotatably connected to the lower push plate through an electric rotating assembly, so that the other end of the upper push plate rotates to the other end of the lower push plate; the longitudinal moving mechanism is used to adjust the height between the lower push plate and the central axis; the transverse moving mechanism is used to drive the upper and lower push plates to produce reciprocating linear displacement along the axial direction of the roller, and clamp and push the bearing to be installed or removed on the roller. Through the coordinated work of various components, this device can achieve fast, accurate and stable replacement of bearings.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing replacement, in particular to a bearing replacement device for a plate and strip rolling line roller. Background Art

[0002] In the production of cold-rolled steel strips, rollers are the core components of the strip conveyor, and their performance and stability are crucial to the smooth operation of the production line. The bearings in the rollers are responsible for supporting and rotating the rollers. Improving the replacement efficiency of roller bearings can effectively ensure that maintenance projects are completed ahead of schedule, thereby improving production efficiency.

[0003] However, in the actual maintenance process, the replacement of roller bearings is a complex and tedious task. The traditional practice often requires manual prefabrication of a large number of tooling to cope with various needs in the maintenance operation. This process not only consumes a lot of manpower, time and material resources, but also because the accuracy and quality of tooling production are difficult to guarantee, there are also many uncontrollable safety risk factors in the operation process. Utility Model Content

[0004] The utility model aims to provide a device for replacing bearings of plate and strip rolling line rollers in view of the deficiencies of the prior art.

[0005] The specific technical solutions are as follows:

[0006] A strip rolling line roller bearing replacement device, comprising:

[0007] U-shaped rack;

[0008] A support platform is provided at the bottom middle position of the U-shaped frame for supporting the rollers;

[0009] A clamping mechanism, provided on two opposite inner walls of the U-shaped frame, for clamping the ends of the central axis on both sides of the roller; and

[0010] The mobile installation and disassembly mechanism includes a lower push plate, an upper push plate, a longitudinal moving mechanism and a transverse moving mechanism; the upper push plate is rotatably connected to the lower push plate through an electric rotating assembly, so that the other end of the upper push plate rotates to the other end of the lower push plate; the longitudinal moving mechanism is used to adjust the height between the lower push plate and the central axis; the transverse moving mechanism is used to drive the upper and lower push plates to produce reciprocating linear displacement along the axial direction of the roller, so as to clamp and push the bearing to be replaced on the roller.

[0011] Optionally, the clamping mechanism includes a driving assembly, a first slider and a first hydraulic cylinder, the driving assembly includes a first screw rod and a first motor, the first screw rod is rotatably connected to the inner side opposite to the U-shaped frame, the first motor is installed on the U-shaped frame, and the output shaft of the first motor is coaxially fixedly connected to the first screw rod, the first slider is slidably connected to the inner wall opposite to the U-shaped frame, and the slider is threadedly connected to the first screw rod, and the first hydraulic cylinder is provided on the opposite inner sides of the two sliders, and the output end of the first hydraulic cylinder abuts against the center axis of the roller.

[0012] Optionally, the longitudinal moving mechanism is provided with two groups, and the longitudinal moving mechanism includes a plurality of second hydraulic cylinders and a support plate, the support plate is provided on the plurality of second hydraulic cylinders, and the push-down plate is provided on the support plate.

[0013] Optionally, the lateral movement mechanism adopts a screw slider mechanism.

[0014] Optionally, two hydraulic push rods are arranged between the lower push plate and the upper push plate.

[0015] Optionally, a limiting mechanism for preventing the roller from deviating is provided on the supporting platform.

[0016] Optionally, the limiting mechanism includes a bidirectional threaded rod and two clamping blocks, the bidirectional threaded rod is rotatably connected to the support platform, the two clamping blocks are respectively slidably connected to the support platform, and the two clamping blocks are respectively symmetrically threadedly connected to both ends of the bidirectional threaded rod.

[0017] Optionally, a side surface of the two clamping blocks that is close to each other is configured as an inclined surface.

[0018] Optionally, the U-shaped frame is provided with a driving member for driving the supporting platform to rotate.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model provides a strip rolling line roller bearing replacement device, the U-shaped frame is provided to provide stable support for other components; the support platform is mainly used to support the roller; the clamping mechanism is used to clamp the center axis ends on both sides of the roller; the mobile installation and removal mechanism includes a lower push plate, an upper push plate, a longitudinal moving mechanism and a transverse moving mechanism, the lower push plate and the upper push plate are connected by an electric rotating assembly, so that the upper push plate can automatically rotate to the lower push plate to facilitate the subsequent clamping and pushing of the bearing, making the installation and removal process of the bearing more convenient and improving work efficiency; wherein, the longitudinal moving mechanism can ensure that the bearing always maintains a stable position during the installation and removal process through precise adjustment; the transverse moving mechanism is used to drive the upper and lower push plates to produce reciprocating linear displacement to push the bearing to be installed or removed. The strip rolling line roller bearing replacement device provided by the utility model can realize the rapid, accurate and stable replacement of bearings through the coordinated work of various components; the device has a simple structure, convenient operation, stable performance, and good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall structure of a strip rolling line roller bearing replacement device provided in an embodiment of the utility model;

[0022] Figure 2 The present invention is a schematic diagram of the overall structure of a limiting mechanism in a strip rolling line roller bearing replacement device provided in an embodiment of the present invention.

[0023] In the figure: 1. U-shaped frame; 2. Support platform; 3. Clamping mechanism; 31. First screw rod; 32. First slider; 33. First hydraulic cylinder; 4. Moving and disassembling mechanism; 40. Hydraulic push rod; 41. Lower push plate; 410. Accommodating groove; 42. Upper push plate; 43. Longitudinal moving mechanism; 431. Second hydraulic cylinder; 432. Support plate; 44. Lateral moving mechanism; 441. Second screw rod; 442. Second slider; 45. Electric rotating assembly; 5. Limiting mechanism; 51. Bidirectional threaded rod; 52. Clamping block; 6. Roller; 60. Center axis; 61. Bearing. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0027] The utility model provides a strip rolling line roller bearing replacement device, referring to Figure 1-2 ,include

[0028] U-shaped rack 1;

[0029] A support platform 2 is provided at the bottom middle position of the U-shaped frame 1 and is used to support the roller 6;

[0030] A clamping mechanism 3, provided on two opposite inner walls of the U-shaped frame 1, for clamping the ends of the central axis 60 on both sides of the roller 6; and

[0031] The movable installation mechanism 4 includes a lower push plate 41, an upper push plate 42, a longitudinal moving mechanism 43 and a transverse moving mechanism 44; the upper push plate 42 is rotatably connected to the lower push plate 41 through an electric rotating component 45, so that the other end of the upper push plate 42 rotates to the other end of the lower push plate 41 to clamp the central axis 60 of the roller 6; the longitudinal moving mechanism 43 is used to adjust the height between the lower push plate 41 and the central axis 60, and the transverse moving mechanism 44 is used to drive the upper and lower push plates 41 to produce reciprocating linear displacement along the axial direction of the roller to clamp and push the bearing 61 to be replaced.

[0032] Specifically, the U-shaped frame 1 serves as the basic structure of the entire device, providing stable support for other components; the supporting platform 2 is located in the middle of the bottom of the U-shaped frame 1, and is mainly used to support the roller 6; the clamping mechanism 3 is arranged on the two opposite inner walls of the U-shaped frame 1, and is used to clamp the ends of the central axis 60 on both sides of the roller 6; the mobile installation and removal mechanism 4 includes a lower push plate 41, an upper push plate 42, a longitudinal moving mechanism 43 and a transverse moving mechanism 44, and the lower push plate 41 and the upper push plate 42 are connected by an electric rotating component 45, so that the upper push plate 42 can automatically rotate to the lower push plate 41 to facilitate the subsequent clamping and pushing of the bearing 61, making the installation and removal process of the bearing 61 more convenient and improving work efficiency; wherein, the longitudinal moving mechanism 43 can ensure that the bearing 61 always maintains a stable position during the installation and removal process through precise adjustment; the transverse moving mechanism 44 is used to drive the upper and lower push plates 41 to produce reciprocating linear displacement to push the bearing 61 to be installed or removed. The plate strip rolling line roller bearing 61 replacement device provided by the utility model realizes the rapid, accurate and stable replacement of the bearing 61 through the coordinated work of various components. The device has a simple structure, convenient operation, stable performance and good application prospects.

[0033] The electric rotating assembly 45 can be configured as an electric motor, a hydraulic or pneumatic motor, a gear box or other device that can realize the rotation of the rod.

[0034] The clamping mechanism 3 includes a driving assembly, a first slider 32 and a first hydraulic cylinder 33. The driving assembly includes a first screw rod 31 and a first motor. The first screw rod 31 is rotatably connected to the inner side opposite to the U-shaped frame 1. The first motor is installed on the U-shaped frame 1, and the output shaft of the first motor is coaxially fixedly connected to the first screw rod 31. The first slider 32 is slidably connected to the inner wall opposite to the U-shaped frame 1, and the slider is threadedly connected to the first screw rod 31. Among them, the first motor is responsible for converting electrical energy into mechanical energy to provide power for the entire mechanism. The first screw rod 31 transmits the power of the motor to the first slider 32 by rotation, and the first slider 32 is threadedly connected to the first screw rod 31. This connection method enables the slider to achieve precise displacement according to the rotation of the screw rod. In addition, the first hydraulic cylinder 33 is provided on the opposite inner sides of the two sliders. The hydraulic cylinder achieves thrust by compressing oil. This thrust can be precisely controlled. The output end of the first hydraulic cylinder abuts against the central axis of the roller, so that the clamping mechanism 3 is more stable and reliable when working. In summary, the clamping mechanism 3 realizes an efficient and precise clamping function through the coordinated work of the driving assembly, the first slider 32 and the first hydraulic cylinder 33 .

[0035] The longitudinal moving mechanism 43 is provided with two groups, which are respectively installed on both sides of the roller 6. The longitudinal moving mechanism 43 includes multiple second hydraulic cylinders 431 and support plates 432. The hydraulic cylinder serves as a driving device and can provide a strong thrust, so that the equipment can be moved quickly and accurately in the vertical direction; and the support plate 432 plays the role of bearing and stabilizing the equipment. It is firmly installed on the hydraulic cylinder to ensure the stability of the equipment during movement; the transverse moving mechanism 44 adopts a screw slider mechanism, which includes a second motor, a second screw rod 441 and a second slider 442. The second motor is installed on the support plate 432, the second screw rod 441 is rotatably connected to the support plate 432, the second slider 442 is slidably connected to the support plate 432 and is threadedly connected to the second screw rod 441, and the upper push plate 42 and the lower push plate 41 are both connected to the second slider 442. The mechanism has the advantages of simple structure, stable operation, and large bearing capacity, so that the equipment can be moved accurately and efficiently in the horizontal direction. In summary, the arrangement of the longitudinal moving mechanism 43 and the transverse moving mechanism 44 enables the equipment to achieve efficient and precise movement in both the vertical and horizontal directions, thereby greatly improving production efficiency.

[0036] In addition, two hydraulic push rods 40 are arranged between the lower push plate 41 and the upper push plate 42. The hydraulic cylinder serves as the power source of the push rod. The piston is driven to reciprocate in the cylinder body by hydraulic oil, thereby realizing the reciprocating motion of the push rod between the two plates to achieve the height adjustment between the upper and lower push plates 41 to realize the installation and removal of bearings 61 of different sizes.

[0037] like Figure 1As shown, in the present embodiment, a support block is provided on the hydraulic push rod 40 on the second slider 442, and a receiving groove 410 is provided on the support block so that the upper push plate 42 can be just engaged in the receiving groove 410 after rotation. In this way, the upper push plate 42 can be stably located on the lower push plate 41 during the movement, avoiding malfunctions caused by shaking or displacement.

[0038] The support platform 2 is provided with a limiting mechanism 5 for preventing the roller 6 from deviating. The limiting mechanism 5 includes a bidirectional threaded rod 51 and two clamping blocks 52. The bidirectional threaded rod 51 is rotatably connected to the support platform 2. The two clamping blocks 52 are respectively slidably connected to the support platform 2, and the two clamping blocks 52 are respectively symmetrically threadedly connected to the two ends of the bidirectional threaded rod 51. In this embodiment, the bidirectional threaded rod 51 is driven to rotate by a motor. The forward and reverse rotation of the motor can realize specific adjustment between the two clamping blocks 52, so that rollers 6 of different sizes can be clamped. In addition, the side surface where the two clamping blocks 52 are close to each other is set as a slope. Due to the existence of the slope, a greater friction force can be generated, thereby increasing the clamping force and making the workpiece more firmly fixed on the fixture. In addition, the design of the slope can make the clamping block 52 first contact the lower end of the slope when contacting the workpiece. As the clamping block 52 moves, the friction force generated by the slope on the workpiece will gradually increase. In this way, the workpiece can be clamped progressively, reducing the resistance during clamping, and the clamping force can be adjusted according to the requirements of different workpieces.

[0039] The U-shaped frame 1 is provided with a driving member for driving the support platform 2 to rotate. The driving member is responsible for driving the support platform 2 to rotate, so as to adjust the direction of the roller 6, thereby realizing the installation and removal of the bearings 61 at both ends on one platform, thereby improving the construction efficiency. The driving member can be configured as a motor and a gear arranged on the U-shaped frame 1 below the support platform 2. The motor is fixedly mounted on the U-shaped frame 1, and the gear is coaxially fixedly connected to the motor. The outer periphery of the support platform 2 is provided with a latch gear for meshing with the gear, thereby realizing the driving support platform 2 to rotate.

[0040] In this embodiment, the motors are all motors that can achieve a self-locking function, such as a stepper motor, a servo motor or other drive structures that can achieve a self-locking function.

[0041] The working process of a strip rolling line roller bearing replacement device provided in the utility model is as follows:

[0042] The first stage of bearing 61 disassembly: first, the roller 6 is placed on the support platform 2 by the lifting equipment. Then, the limiting mechanism 5 on both sides of the roller 6 rotates the two-way threaded rod 51 to make the two clamping blocks 52 clamp the roller 6 to prevent the roller 6 from rolling and falling during the disassembly and installation of the bearing 61, causing a safety accident. The clamping mechanism 3 clamps the ends of the central axis 60 at both ends of the roller 6 through the first hydraulic cylinder 33, and then the lower push plate 41 is moved between the bearing 61 and the roller by the lateral movement mechanism 44 and the longitudinal movement mechanism 43. The upper push plate 42 is rotated into the receiving groove 410 by the electric rotating component 45. The hydraulic push rod 40 adjusts the distance between the upper and lower push plates 41, and the spacing is slightly larger than the diameter of the shaft (about 1-3mm). By moving through the lateral displacement mechanism, the bearing 61 can be finally disassembled. Similarly, by rotating the support platform 2, the roller 6 can be reversed and the bearing 61 at the other end can also be disassembled.

[0043] The second stage of bearing 61 installation: first, the roller 6 is placed on the support platform 2 by means of a lifting device. Secondly, the limiting mechanism 5 on both sides of the roller 6 rotates the two-way threaded rod 51 so that the two clamping blocks 52 clamp the roller 6 to prevent the roller 6 from rolling and falling during the disassembly and installation of the bearing 61, thereby causing a safety accident. The clamping mechanism 3 clamps the ends of the central axis 60 at both ends of the roller 6 through the first hydraulic cylinder 33, and then moves the lower push plate 41 to between the bearing 61 and the roller 6 through the lateral movement mechanism 44 and the longitudinal movement mechanism 43. The upper push plate 42 is rotated into the accommodating groove 410 through the electric rotating component 45. The hydraulic push rod 40 adjusts the distance between the upper and lower push plates 41 so that the upper and lower push plates 41 clamp the central axis 60 of the roller 6. By adjusting one end of the clamping component, the first hydraulic cylinder 33 applies a thrust to push the bearing 61 along the shaft head into the bearing position. Similarly, the support platform 2 is rotated to complete the installation of the bearing 61 at the other end.

[0044] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A strip rolling line roller bearing replacement device, characterized in that: include U-shaped rack; A support platform is provided at the bottom middle position of the U-shaped frame for supporting the rollers; A clamping mechanism, provided on two opposite inner walls of the U-shaped frame, for clamping the ends of the central axis on both sides of the roller; and The mobile installation and disassembly mechanism includes a lower push plate, an upper push plate, a longitudinal moving mechanism and a transverse moving mechanism; the upper push plate is rotatably connected to the lower push plate through an electric rotating assembly, so that the other end of the upper push plate rotates to the other end of the lower push plate; the longitudinal moving mechanism is used to adjust the height between the lower push plate and the central axis; the transverse moving mechanism is used to drive the upper and lower push plates to produce reciprocating linear displacement along the axial direction of the roller, so as to clamp and push the bearing to be replaced on the roller.

2. The strip rolling line roller bearing replacement device according to claim 1, characterized in that: The clamping mechanism includes a driving assembly, a first slider and a first hydraulic cylinder. The driving assembly includes a first screw and a first motor. The first screw is rotatably connected to the inner side opposite to the U-shaped frame. The first motor is installed on the U-shaped frame, and the output shaft of the first motor is coaxially fixedly connected to the first screw. The first slider is slidably connected to the inner wall opposite to the U-shaped frame, and the slider is threadedly connected to the first screw. The opposite inner sides of the two sliders are provided with first hydraulic cylinders, and the output end of the first hydraulic cylinder abuts against the central axis of the roller.

3. The strip rolling line roller bearing replacement device according to claim 1, characterized in that: The longitudinal moving mechanism is provided with two groups, and the longitudinal moving mechanism comprises a plurality of second hydraulic cylinders and a support plate, the support plate is provided on the plurality of second hydraulic cylinders, and the push-down plate is provided on the support plate.

4. The strip rolling line roller bearing replacement device according to claim 1, characterized in that: The lateral movement mechanism adopts a screw slider mechanism.

5. The strip rolling line roller bearing replacement device according to claim 1, characterized in that: Two hydraulic push rods are arranged between the lower push plate and the upper push plate.

6. The strip rolling line roller bearing replacement device according to claim 1, characterized in that: The support platform is provided with a limiting mechanism for preventing the roller from deviating.

7. The strip rolling line roller bearing replacement device according to claim 6, characterized in that: The limiting mechanism includes a bidirectional threaded rod and two clamping blocks. The bidirectional threaded rod is rotatably connected to the support platform. The two clamping blocks are respectively slidably connected to the support platform, and the two clamping blocks are respectively symmetrically threadedly connected to the two ends of the bidirectional threaded rod.

8. The strip rolling line roller bearing replacement device according to claim 7, characterized in that: A side surface of the two clamping blocks that is close to each other is arranged as an inclined surface.

9. The strip rolling line roller bearing replacement device according to claim 1, characterized in that: The U-shaped frame is provided with a driving member for driving the supporting platform to rotate.

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