Dismounting device for backing bearing of rolling mill

Abstract

The utility model relates to a rolling mill backing bearing dismounting device which comprises a dismounting device body, two connecting rods arranged on the dismounting device body, two bearing baffles and a backing bearing, and the opposite side faces of the two connecting rods are movably connected with supporting rods through bearings. The opposite side faces of the two supporting rods are movably connected with screw rods with one ends extending into the supporting rods, the opposite side faces of the two screw rods are fixedly connected with fixing plates, and the two fixing plates are attached to a backing bearing. According to the dismounting device for the backing bearing of the rolling mill, the backing bearing is limited through attachment between the fixing plate and the backing bearing, the stability of the backing bearing is improved, the dismounting efficiency is improved, under the action of a baffle, a central spindle is limited, the stability of the central spindle is improved, and meanwhile through sliding connection between a sliding block and a sliding groove, the dismounting efficiency is improved. And the fixing plate is supported, the stability of the fixing plate is improved, and more convenience and practicability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of backing bearing disassembly, in particular to a backing bearing disassembly device for a rolling mill. Background Art

[0002] Backing bearings have particularly thick outer rings and are installed in groups on stationary shafts to become support roller bearings. The pressure on the working rolls is transmitted to the support rolls through the intermediate rolls and transmitted to the frame through the saddle system. They are generally used on multi-roller cold rolling mill equipment and can also be used in other occasions. The backing bearings are multi-row cylindrical roller bearings, and the bearings themselves require very high precision.

[0003] Chinese patent CN203245575U discloses a rolling mill backing bearing disassembly device, which discloses a technical solution with low labor intensity, short working time and high work efficiency, and solves the problem that the backing bearings of the existing steel strip rolling mill are heavy in weight, and manual disassembly requires the use of a crane to erect the entire backing bearing assembly and then lift the bearings out one by one, which has high labor intensity, long working time and low work efficiency.

[0004] When the device is in use, the core shaft in the center of the backing bearing group is pushed out by extending the hydraulic rod to disassemble the backing bearing. However, the backing bearing is placed between two connecting rods, and its stability is poor, which can easily cause the backing bearing to shake and reduce the disassembly efficiency. Therefore, a device for disassembling the backing bearing of a rolling mill is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a device for disassembling the backing bearing of a rolling mill, which has the advantage of high stability and solves the problem that when the device is in use, the core shaft in the center of the backing bearing group is pushed out by extending the hydraulic rod to disassemble the backing bearing, but the backing bearing is placed between two connecting rods, and its stability is poor, which can easily cause the backing bearing to shake, thereby reducing the disassembly effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a device for disassembling a backing bearing of a rolling mill, comprising a disassembly device body and two connecting rods, two bearing baffles and a backing bearing arranged on the disassembly device body, wherein the opposite sides of the two connecting rods are movably connected to support rods through bearings.

[0007] The opposite sides of the two support rods are movably connected to a screw with one end extending into the interior thereof, and the opposite sides of the two screw rods are fixedly connected to a fixing plate, and the two fixing plates are both fitted with the backing bearing, and a clamping plate is placed at the bottom of the bearing baffle at the bottom.

[0008] A supporting assembly is provided between the two connecting rods for supporting the core shaft.

[0009] A limiting component is provided between the two connecting rods to limit the clamping plate.

[0010] Furthermore, threaded holes are provided on opposite sides of the two support rods, and the two screw rods extend into the inside of the two threaded holes respectively and are threadedly connected thereto.

[0011] Furthermore, the support assembly includes two support plates, the two support plates are respectively fixedly connected to the side surfaces of the two connecting rods away from the support rods, the bottom surfaces of the two support plates are fixedly connected with telescopic rods, the two telescopic rods are fixedly connected to the clamping plates, the outer peripheral walls of the two telescopic rods are respectively provided with springs fixedly connected to the support plates and the clamping plates, and the top surface of the clamping plate is provided with a placement hole.

[0012] Furthermore, the telescopic rod is composed of a sleeve and a moving rod, one end of the moving rod penetrates and extends into the interior of the sleeve, the outer side of the moving rod is fixedly connected to a limiting block located inside the sleeve, and one side of the sleeve is provided with a through hole adapted to the moving rod.

[0013] Furthermore, the limit assembly includes two limit plates, and the two limit plates are respectively fixedly connected to the left side and the right side of the clamping plate. The two connecting rods are provided with limit grooves on the side away from the support rod. The two limit plates extend to the inside of the two limit grooves respectively. The top surface of the bearing baffle plate at the bottom is provided with two sliding grooves, and the bottom surfaces of the two fixed plates are fixedly connected to a slider with one end extending to the inside of the sliding groove.

[0014] Furthermore, the two limiting plates are both L-shaped plates, the limiting plates are slidably connected to the limiting grooves, and the sliding blocks are slidably connected to the sliding grooves.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The device for disassembling the backing bearing of a rolling mill restricts the backing bearing through the fit between the fixing plate and the backing bearing, thereby improving the stability of the backing bearing and the disassembly efficiency. The device restricts the core shaft through the action of the baffle plate, thereby improving the stability of the core shaft. At the same time, the fixing plate is supported through the sliding connection between the slider and the slide groove, thereby improving the stability of the fixing plate, and is more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 A is a schematic diagram of the structure enlargement;

[0019] Figure 3 It is a left side schematic diagram of the right side limiting plate in the structure of the utility model.

[0020] In the figure: 1 disassembly device body, 2 connecting rod, 3 bearing baffle, 4 limit groove, 5 limit plate, 6 support plate, 7 telescopic rod, 8 spring, 9 clamping plate, 10 support rod, 11 screw, 12 placement hole, 13 slider, 14 slide groove, 15 fixing plate, 16 backing bearing. DETAILED DESCRIPTION

[0021] 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 in 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.

[0022] See also Figure 1-3 The rolling mill backing bearing disassembly device in this embodiment includes a disassembly device body 1 and two connecting rods 2, two bearing baffles 3 and a backing bearing 16 arranged on the disassembly device body 1. The opposite sides of the two connecting rods 2 are movably connected to support rods 10 through bearings.

[0023] The opposite sides of the two support rods 10 are movably connected to a screw rod 11 with one end extending into the interior thereof, and the opposite sides of the two screw rods 11 are fixedly connected to a fixing plate 15, and the two fixing plates 15 are both fitted with the backing bearing 16, and a clamping plate 9 is placed at the bottom of the bearing baffle plate 3 at the bottom.

[0024] The two support rods 10 have threaded holes on opposite sides thereof, and the two screw rods 11 extend into the two threaded holes respectively and are threadedly connected thereto.

[0025] Specifically, the backing bearing 16 is placed on the top bearing baffle plate 3, and the support rod 10 is turned to rotate the support rod 10. Through the threaded connection between the support rod 10 and the screw rod 11, the screw rod 11 drives the fixed plate 15 to move, and the fixed plate 15 and the backing bearing 16 are fitted to fix the backing bearing 16. The disassembly device body 1 is started, and the output end of the disassembly device body 1 pushes the core shaft to move to disassemble the backing bearing 16.

[0026] In this embodiment, a support assembly is provided between the two connecting rods 2, and the support assembly includes two support plates 6. The two support plates 6 are respectively fixedly connected to the side surfaces of the two connecting rods 2 away from the support rod 10. The bottom surfaces of the two support plates 6 are fixedly connected with telescopic rods 7. The two telescopic rods 7 are fixedly connected to the clamping plate 9. The outer peripheral walls of the two telescopic rods 7 are respectively provided with springs 8 fixedly connected to the support plates 6 and the clamping plate 9. The top surface of the clamping plate 9 is provided with a placement hole 12.

[0027] Among them, the telescopic rod 7 is composed of a sleeve and a moving rod. One end of the moving rod penetrates and extends into the interior of the sleeve. The outer side of the moving rod is fixedly connected to a limiting block located inside the sleeve. A through hole matching the moving rod is opened on one side of the sleeve.

[0028] Specifically, the mandrel enters into the placement hole 12, thereby pushing the clamping plate 9 to move, stretching the telescopic rod 7 and the spring 8. After the mandrel is disassembled, the elasticity of the spring 8 drives the clamping plate 9 to reset.

[0029] In this embodiment, a limit assembly is provided between the two connecting rods 2, and the limit assembly includes two limit plates 5, and the two limit plates 5 are respectively fixedly connected to the left side and the right side of the clamping plate 9. The two connecting rods 2 are provided with a limit groove 4 on the side away from the support rod 10, and the two limit plates 5 extend to the inside of the two limit grooves 4 respectively. The top surface of the bearing baffle 3 at the bottom is provided with two slide grooves 14, and the bottom surfaces of the two fixed plates 15 are fixedly connected to a slider 13 with one end extending to the inside of the slide groove 14.

[0030] The two limiting plates 5 are both L-shaped plates, the limiting plates 5 are slidably connected to the limiting grooves 4 , and the sliding blocks 13 are slidably connected to the sliding grooves 14 .

[0031] Specifically, through the sliding connection between the slider 13 and the slide groove 14, the screw rod 11 drives the fixed plate 15 to move, and through the sliding connection between the limiting plate 5 and the limiting groove 4, the card plate 9 is supported to improve the stability of the card plate 9.

[0032] The working principle of the above embodiment is:

[0033] Place the backing bearing 16 on the top bearing baffle 3, turn the support rod 10 to make the support rod 10 rotate, and through the threaded connection between the support rod 10 and the screw rod 11 and the sliding connection between the slider 13 and the slide groove 14, the screw rod 11 drives the fixed plate 15 to move, and the fixed plate 15 and the backing bearing 16 fit together to fix the backing bearing 16, start the disassembly device body 1, and the output end of the disassembly device body 1 pushes the core shaft to move, and the core shaft enters the inside of the placement hole 12, and then pushes the card plate 9 to move, stretching the telescopic rod 7 and the spring 8. After the core shaft is disassembled, the elasticity of the spring 8 drives the card plate 9 to reset, and the card plate 9 is supported by the sliding connection between the limit plate 5 and the limit groove 4 to improve the stability of the card plate 9.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A disassembly device for a backing bearing of a rolling mill, comprising a disassembly device body (1), two connecting rods (2), two bearing baffles (3) and a backing bearing (16) arranged on the disassembly device body (1), characterized in that: The opposite sides of the two connecting rods (2) are movably connected to support rods (10) via bearings; The opposite side of the two support rods (10) is movably connected to a screw rod (11) with one end extending into the inside thereof, and the opposite side of the two screw rods (11) is fixedly connected to a fixing plate (15), and the two fixing plates (15) are both fitted with a backing bearing (16), and a clamping plate (9) is placed at the bottom of the bearing baffle (3) at the bottom; A support assembly is provided between the two connecting rods (2), and a limit assembly is provided between the two connecting rods (2).

2. The device for removing the backing bearing of a rolling mill according to claim 1, characterized in that: The two support rods (10) are each provided with a threaded hole on one side opposite to the other, and the two screw rods (11) respectively extend into the inside of the two threaded holes and are threadedly connected thereto.

3. The device for removing the backing bearing of a rolling mill according to claim 1, characterized in that: The support assembly comprises two support plates (6), the two support plates (6) being respectively fixedly connected to one side surface of the two connecting rods (2) away from the support rod (10), the bottom surfaces of the two support plates (6) being fixedly connected to telescopic rods (7), the two telescopic rods (7) being fixedly connected to a clamping plate (9), the outer peripheral walls of the two telescopic rods (7) being respectively provided with springs (8) fixedly connected to the support plates (6) and the clamping plate (9), and the top surface of the clamping plate (9) being provided with a placement hole (12).

4. The device for removing the backing bearing of a rolling mill according to claim 3, characterized in that: The telescopic rod (7) is composed of a sleeve and a moving rod, one end of the moving rod penetrates and extends into the sleeve, the outer side of the moving rod is fixedly connected to a limiting block located inside the sleeve, and one side of the sleeve is provided with a through hole adapted to the moving rod.

5. The device for removing the backing bearing of a rolling mill according to claim 3, characterized in that: The limit assembly comprises two limit plates (5), the two limit plates (5) are respectively fixedly connected to the left side and the right side of the clamping plate (9), the two connecting rods (2) are provided with limit grooves (4) on the side away from the support rod (10), the two limit plates (5) respectively extend to the inside of the two limit grooves (4), the top surface of the bearing baffle (3) at the bottom is provided with two slide grooves (14), and the bottom surfaces of the two fixed plates (15) are fixedly connected to a slider (13) with one end extending to the inside of the slide groove (14).

6. The device for removing the backing bearing of a rolling mill according to claim 5, characterized in that: The two limiting plates (5) are both L-shaped plates, the limiting plates (5) are slidably connected to the limiting grooves (4), and the sliding blocks (13) are slidably connected to the sliding grooves (14).

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