Quick dismounting device for supporting roll bearing seat of medium and heavy plate straightening machine

Abstract

The utility model discloses a quick dismounting device for a supporting roller bearing seat of a medium plate straightening machine, which comprises an operation table, a supporting roller positioning seat, a movable seat, a jack, a jack bracket and a stress application plate, the supporting roller positioning seat is fixed on the operation table, and the supporting roller positioning seat is provided with a positioning groove for accommodating and positioning a roller body of a supporting roller. Positioning structures for limiting the axial movement of the supporting roller body are arranged at the two ends of the supporting roller positioning seat; the movable seat is placed on the back-up roll positioning seat and surrounds the roll body of the back-up roll with the back-up roll positioning seat; the jack bracket is arranged beside the back-up roll positioning seat, the jack is placed in the jack bracket, and the ejection direction of the jack is parallel to a roll body of the back-up roll; the stress application plate is fixed to the outer end face of the bearing seat through a locking piece, and the ejection end of the jack abuts against the stress application plate. The utility model solves the problems that the back-up roll bearing seat of the existing medium and heavy plate straightening machine is difficult to dismount and low in dismounting efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing pedestal dismantling technical field especially a kind of quick dismantling device of middle-thick plate straightening machine supporting roll bearing pedestal. BACKGROUND

[0002] The supporting roll bearing of middle-thick plate straightening machine has high working load, and is in high temperature and humid harsh working condition environment for a long time. In view of this situation, to ensure that the supporting roll can rotate smoothly and prevent the occurrence of jamming phenomenon, the supporting roll bearing needs to be replaced regularly. The supporting roll bearing is usually installed in the form of hot mounting, and there is a certain interference fit between the bearing and the bearing pedestal, which undoubtedly increases the difficulty of dismantling the straightening machine supporting roll bearing pedestal, and the dismounting process is cumbersome.

[0003] When adopting the traditional method to dismantle the bearing pedestal, the bearing pedestal usually needs to be baked and heated, and after reaching the appropriate hot dismounting temperature, the bearing pedestal is separated from the bearing by the way of external force hitting. But this method has many shortcomings: first, in the process of dismantling, the high-temperature grease in the bearing is easy to splash due to hitting, causing the worker to be scalded and reducing the safety of work; second, when the worker hits the bearing pedestal, if the operation is improper, the hitting direction is easy to deviate, which not only may damage the equipment, but also may injure the personnel; third, because the fitting force is difficult to control uniformly in the process of hitting and dismantling, the bearing pedestal is often inclined, which causes the bearing pedestal to be stuck, so that the dismantling work cannot be carried out smoothly, and the worker needs to take additional measures to correct the inclination, which increases the difficulty of dismantling and prolongs the time required for dismantling, not only increases the labor intensity of the worker, but also reduces the overall work efficiency.

[0004] Therefore, it is of great significance to design an efficient and safe straightening machine supporting roll bearing pedestal dismantling device to reduce the difficulty of dismantling, improve work efficiency and safety, and reduce the labor intensity of workers. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of quick dismantling device of middle-thick plate straightening machine supporting roll bearing pedestal, and this device can solve the problems of existing middle-thick plate straightening machine supporting roll bearing pedestal dismantling difficulty and low dismantling efficiency.

[0006] In order to solve the above problems, the utility model adopts the technical scheme: this kind of quick dismantling device of plate straightening machine supporting roller bearing seat includes operation platform, support roll positioning seat, movable seat, jack, jack bracket, force plate, the support roll positioning seat is fixed on the operation platform, the support roll positioning seat is equipped with the positioning groove that contains and positions support roll body, both ends of the support roll positioning seat are provided with the positioning structure that restricts the axial movement of support roll body, the movable seat is placed on the support roll positioning seat and the support roll positioning seat embraces the support roll body, the jack bracket is set up in the side of support roll positioning seat, the jack is placed in the jack bracket, the ejecting direction of jack is parallel with the support roll body, the force plate is fixed on the outer end face of bearing seat through locking piece, and the ejecting end of jack is in contact with the force plate.

[0007] In the above-mentioned technical scheme of the quick dismantling device of plate straightening machine supporting roller bearing seat, the more specific technical scheme can also be: the support roll positioning seat is further provided with a radial limiting mechanism.

[0008] In some possible embodiments, the radial limiting mechanism comprises vertical plates fixed on both sides of the support roll positioning seat and a limiting pin movably connected between the two vertical plates.

[0009] In some possible embodiments, the positioning structure is a flange radially protruding from the end of the positioning groove.

[0010] In some possible embodiments, the force plate is provided with a rib plate.

[0011] In some possible embodiments, the jack bracket comprises a front end bracket, an intermediate bracket and a rear end bracket, the front end bracket and the intermediate bracket are fixed on the operation platform, and the rear end bracket is fixed beside the support roll positioning seat.

[0012] In some possible embodiments, the jack bracket further comprises a rear end reinforcing frame fixed on the movable support.

[0013] Compared with the prior art, the utility model has the following beneficial effects due to the adoption of the above technical scheme:

[0014] 1、By fixing the support roller positioning seat on the operating platform and cooperating with the movable seat, the support roller body can be stably fixed, ensuring that the support roller will not shake or move during the disassembly process; at the same time, by using the combination of the jack and the jack bracket, and the close fixed connection between the force plate and the outer end surface of the bearing seat, the workers can easily apply uniform pressure through the hydraulic jack, thereby quickly and smoothly ejecting the bearing seat, greatly reducing the time required for disassembly of the bearing seat; compared with the traditional disassembly method, the device does not need to be baked and heated and hit, the disassembly operation is simple, the potential risk of disassembly operation is reduced, the disassembly efficiency is significantly improved, and energy consumption is also saved; in addition, the positioning structure at both ends of the support roller positioning seat effectively limits the axial movement of the support roller body, avoiding possible deviations and unexpected situations during the disassembly process, ensuring the stability and safety of the disassembly process.

[0015] 2、The radial limiting mechanism is arranged, which can further avoid the radial jumping of the support roller during the disassembly of the bearing seat, improve the safety of the disassembly process, and reduce the potential risk to the operator and the surrounding equipment.

[0016] 3、The radial flange at the end of the positioning groove is designed, which is inserted between the support roller body and the bearing seat and in contact with the end surface of the support roller body, limiting the axial movement of the support roller body, effectively preventing the axial movement or shifting of the support roller body during the disassembly process, the radial flange increases the contact area with the support roller body, which can provide more stable and reliable limiting effect, ensuring the stable positioning of the support roller during the disassembly operation, not only improving the precision and efficiency of the disassembly operation, but also helping to reduce the potential risk caused by the movement of the support roller, providing higher safety protection for the operator.

[0017] 4、The force plate is provided with a rib plate, which can improve the strength and stiffness of the force plate, improve its carrying capacity, and prevent deformation or damage.

[0018] 5、The combined jack bracket can provide multiple-point support for the jack, reduce the possibility of shaking and deviation, and also effectively disperse the pressure generated by the jack during the ejection process, thereby enhancing the stability of the entire bracket. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is a structural schematic view of the quick disassembly device of the support roller bearing seat of the medium plate straightening machine.

[0020] Fig. 2 is a side view of the force plate.

[0021] Fig. 3 is a structural schematic view of the support roller.

[0022] Explanation of reference numerals in the attached drawings: 1. Operating platform; 1-1. Column; 1-2. Installation platform; 2. Jack bracket; 2-1. Front bracket; 2-2. Intermediate bracket; 2-3. Rear bracket; 2-4. Rear reinforcement frame; 3. Jack; 4. Force plate; 4-1. Rib plate; 5. Movable seat; 6. Support roller positioning seat; 6-1. Flange; 7. Vertical plate; 8. Bearing seat; 9. Support roller body. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0024] Figs. 1-3 The quick removal device for the support roller bearing seat of the medium-thick plate straightening machine shown mainly includes an operating platform 1, a support roller positioning seat 6, a movable seat 5, a jack 3, a jack bracket 2, and a force-applying plate 4. The support roller positioning seat 6 is fixed to the operating platform 1 and has an internal positioning groove for accommodating and positioning the support roller body 9. Positioning structures restricting axial movement of the support roller are provided at both ends of the positioning groove. The movable seat 5 is placed on top of the support roller positioning seat 6, together with the support roller positioning seat 6, encircling the support roller body 9 to enhance stability. The jack bracket 2 is located beside the support roller positioning seat 6, providing stable support for the jack 3. The jack 3 is placed inside the bracket, with its pushing direction parallel to the support roller body 9. The force-applying plate 4 is firmly fixed to the outer end face of the support roller bearing seat to be removed by locking components, serving as the force point when the jack pushes.

[0025] In some possible embodiments, the operating platform 1 consists of four columns 1-1 and an installation platform 1-2 set on these columns 1-1. The columns 1-1 are made of channel steel and are fixed under the installation platform 1-2 by welding, which serves to support the entire structure and the support rollers.

[0026] The support roller positioning seat 6 is fixed to the plane of the mounting platform 1-2 by welding or bolting. The support roller positioning seat 6 has a semi-annular positioning groove for precisely accommodating and positioning the support roller body 9. Radially inward protruding flanges 6-1 are provided at both ends of the positioning groove as a positioning structure to prevent the support roller from axially shifting under force. The support roller positioning seat 6 can be designed as a segmented structure to reduce weight and cost. In some possible embodiments, vertical plates 7 facing each other are also fixed on both sides of the support roller positioning seat 6. Pin holes are opened on the vertical plates 7, and limiting pins passing through the pin holes are movably connected between the vertical plates 7. The vertical plates 7 and the limiting pins constitute a radial limiting mechanism to further restrict the radial movement of the support roller. Preferably, the radial limiting mechanism and the movable seat 5 are respectively located at both ends of the support roller positioning seat 6.

[0027] The movable seat 5 is placed on the support roller positioning seat 6 and is designed with a structure that cooperates with the support roller positioning seat 6. It can surround the support roller body 9, providing additional stability for the dismantling operation and ensuring the precise positioning of the support roller during the dismantling process. Preferably, one end of the movable seat 5 is also provided with a flange, and the other end is provided with a part of the jack bracket 2 to enhance the stability of the jack 3 during the jacking process. In other embodiments, the movable seat 5 and the support roller positioning seat 6 can be detachably connected by bolts or other connecting parts.

[0028] In this embodiment, the jack 3 is a hydraulic jack, which is placed inside the jack bracket 2. Its pushing direction is parallel to the axis of the support roller body 9, ensuring that the jack 3 can generate a uniform thrust when pushing the force plate 4. The jack bracket 2 not only provides a stable support structure for the jack 3, but also ensures the stability and safety of the jack 3 during the pushing process. In some possible embodiments, the jack bracket 2 consists of a front bracket 2-1, a middle bracket 2-2, and a rear bracket 2-3. The front bracket 2-1 and the middle bracket 2-2 are welded and fixed to the operating platform 1. The front bracket 2-1 is a C-shaped frame supporting the front end of the jack cylinder. The middle bracket 2-2 is a steel plate inclined at a certain angle to the vertical plane, which prevents the jack 3 from rolling and falling. The rear bracket 2-3 is fixed to the side of the support roller positioning seat 6. It includes a plate supporting the rear end of the jack cylinder and a plate that abuts against the lower half of the rear end face of the jack, providing a support point for the jack 3 to exert force and strengthening the mechanical structure. To improve stability, a rear reinforcing frame 2-4 is added to the movable seat 5. The rear reinforcing frame 2-4 is provided with a plate that abuts against the upper half of the rear end face of the jack. To ensure the smoothness of the jacking, the jack 3 and the jack bracket 2 are symmetrically arranged on both sides of the support roller positioning seat 6.

[0029] like Fig. 2 As shown, the force-adjusting plate 4 has four through holes for installing bolts and other locking components to fix it to the outer end face of the bearing housing 8. Ribs 4-1 are provided on the force-adjusting plate 4 to enhance its structural strength and ensure safety during dismantling. Furthermore, the ribs 4-1 can also serve as grippers for easy operation. The surface of the force-adjusting plate 4 is perpendicular to the jacking direction of the jack 3, ensuring uniform transmission of the jacking force and preventing uneven loading and jamming.

[0030] When using this device to remove the support roller bearing housing of the medium-thick plate straightener, place the support roller stably in the positioning groove of the support roller positioning seat 6, and fix the support roller body 9 using the flange 6-1 and the radial limiting mechanism. Then, place the movable seat 5 on the support roller positioning seat 6 and fix it to ensure the stability of the circumferential structure. Carefully inspect the outer end face of the bearing housing 8 to ensure it is clean and free of foreign objects, and then firmly fix the force plate 4 to the bearing housing 8 using bolts or other locking devices. Adjust the jack 3 so that its ejector end is in close contact with the force plate 4. Slowly start the jack 3, allowing its ejector end to gradually push the force plate 4, thereby moving the bearing housing 8. During this process, closely monitor the separation between the bearing housing 8 and the support roller body 9, as well as the stress state of the force plate 4 and the jack 3. As the jack 3 continues to push, the bearing housing 8 will gradually separate from the support roller body 9. At this point, carefully remove the bearing housing 8 from the support roller body 9 to avoid damaging the surface of the bearing housing 8 or the support roller body 9. After removing one bearing housing 8, lift the support roller and rotate it in the correct direction. Repeat the above steps until the other bearing housing 8 is successfully removed.

[0031] The quick removal device for the support roller bearing seat of this medium-thick plate straightening machine quickly and smoothly removes the bearing seat 8 by fixing the support roller body 9 and using jacks 3 and force plates 4. The structure is reasonably designed and easy to operate. There is no need to heat the bearing seat 8, saving energy consumption, avoiding grease combustion, and reducing the labor intensity and safety risks of maintenance personnel. The removal time is short, and only two workers are needed to complete the removal of the bearing seat 8 within 10 minutes, which greatly improves work efficiency.

Claims

1. A quick removal device for a support roller bearing chock of a plate straightener, characterized in that: The utility model provides a kind of supporting roller positioning seat, including operating platform, supporting roller positioning seat, movable seat, jack, jack bracket, force plate, the supporting roller positioning seat is fixed on the operating platform, the supporting roller positioning seat is equipped with the positioning slot of containing and positioning supporting roller roll body, the both ends of the supporting roller positioning seat are provided with the positioning structure of limiting the axial movement of supporting roller roll body;The movable seat is placed on the supporting roller positioning seat and the supporting roller positioning seat embraces the supporting roller roll body;The jack bracket is arranged in the side of the supporting roller positioning seat, the jack is placed in the jack bracket, the ejecting direction of the jack is parallel with the supporting roller roll body;The force plate is fixed on the outer end surface of bearing seat by locking member, and the ejecting end of the jack is in contact with the force plate.

2. The quick removal device of the support roller chock of a plate mill straightener according to claim 1, characterized in that: The supporting roller positioning seat is further provided with a radial limiting mechanism.

3. The quick removal device of the supporting roller chock of a plate straightening machine according to claim 2, characterized in that: The radial limiting mechanism includes vertical plates fixed on both sides of the supporting roller positioning seat and a limiting pin movably connected between the two vertical plates.

4. The quick removal device of the support roller chock of a plate mill according to claim 1, characterized in that: The positioning structure is a flange radially protruding from the end of the positioning slot.

5. The quick release device for the support roller chock of a plate mill straightener according to claim 1, characterized in that: The force plate is provided with a rib plate.

6. The quick release device for a plate straightening machine backup roll chock according to claim 1, characterized in that: The jack bracket includes a front end bracket, an intermediate bracket and a rear end bracket, the front end bracket and the intermediate bracket are fixed on the operating platform, and the rear end bracket is fixed beside the supporting roller positioning seat.

7. The quick release device for a support roller chock of a plate mill straightener according to claim 6, characterized in that: The jack bracket further includes a rear end reinforcing frame fixed on the movable seat.

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