Upper supporting roll replacing device

Abstract

The utility model discloses an upper supporting roll changing device which comprises a base, a bedplate is arranged above the base, bearing seats are installed at the two ends of the bedplate in a sliding mode respectively, supporting frames are vertically and fixedly installed at the two ends of the bottom of each bearing seat, and every two supporting frames at the same end form a group. And a control mechanism is arranged below the platen. The platen, the bearing seat, the supporting frame, the control mechanism and other structures are arranged above the base, the roller replacing process can be easily controlled, the arc-shaped notches in the two ends of the bearing seat can effectively bear and place the replaced upper supporting roller, the process of the upper roller and the lower roller is facilitated, and the working efficiency is improved. And the control mechanism is used for controlling the distance between the two bearing seats, so that the distance between the two bearing seats can be adjusted to a proper distance according to the upper supporting rollers with different sizes, and the two ends of the upper supporting rollers can be stably placed and supported.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to an upper supporting roller changing device. Background Art

[0002] The upper backup roll changing device is a device used in hot rolling production lines, mainly used to replace the backup rolls on hot rolling mills. The backup rolls are key components of hot rolling mills, bearing the axial, radial and overturning moment loads of the working rolls. The function of the upper backup roll changing device is to quickly and efficiently replace the assembled working rolls or working rolls and intermediate rolls.

[0003] Rolling equipment in the metallurgical industry, such as hot rolling, cold rolling, and medium plate rolling mills, needs to withstand huge axial loads, radial loads, overturning moments, and other combined loads. The core components of these equipment are backup rollers. Backup roller bearings are prone to wear, fatigue, heat, and other problems when subjected to huge loads for a long time, which in turn leads to bearing damage. Bearing damage can affect the normal operation of rolling equipment and may even cause equipment failure and shutdown.

[0004] Although the existing upper support roll changing devices have played a certain role in ensuring the stable operation of rolling equipment, improving product quality and avoiding safety hazards, some roll changing devices require the disassembly and installation of a large number of parts when replacing the support rolls, and the existing roll changing devices are designed for specific types of rolling equipment, that is, one roll changing device can only replace one size of upper support roll, and its scope of application is limited.

[0005] Therefore, it is necessary to invent an upper support roll changing device to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an upper support roller changing device to solve the above-mentioned technical deficiencies.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an upper support roller changing device, comprising a base, a table plate is arranged above the base, bearing seats are slidably installed at both ends of the table plate, support frames are vertically fixedly installed at both ends of the bottom of each bearing seat, and every two support frames at the same end form a group, and a control mechanism is arranged below the table plate;

[0008] Both ends of the bearing seat are provided with arc-shaped notches, and the notches at both ends of the bearing seat are provided with limit seats;

[0009] The control mechanism comprises:

[0010] A screw rod is arranged at the lower center line of the table, and a handle is fixedly installed at the front end of the screw rod;

[0011] Two nut seats are respectively threadedly connected to the two ends of the screw rod, and the two nut seats make opposite or relative movements on the screw rod. Push rods are laterally fixedly installed on both sides of the two nut seats. Every two push rods at the same end form a group, and each group of push rods is respectively located on the outside of two groups of support frames. The front end of each push rod is fixedly connected to the outside of the corresponding support frame by bolts.

[0012] As a preferred solution of the utility model, slide grooves are provided on both sides of the upper surface of the base, the length of the slide grooves is smaller than the length of the table plate, and universal wheels are fixedly installed at the four corners of the bottom of the base.

[0013] As a preferred solution of the utility model, a roller is rotatably mounted on the bottom of each support frame, and the bottom of the roller at the bottom of each support frame is slidably connected to the corresponding slide groove.

[0014] As a preferred solution of the utility model, a unloading plate is provided at the front end of the two supporting seats, the tail end of the unloading plate is rotatably connected to the front end of the supporting seat, the length of the unloading plate is smaller than the length of the support frame, and columns are vertically fixed on both sides of the bottom of both ends of the table plate, and the columns are fixedly connected to the base.

[0015] As a preferred solution of the utility model, the table top is in an I-shaped structure, and connecting parts are fixedly installed at the middle positions of both ends of the bottom of the table top. The two ends of the screw rod are respectively inserted into the lower ends of the two connecting parts, and the two ends of the screw rod are rotatably connected to the lower ends of the two connecting parts.

[0016] As a preferred solution of the utility model, a plurality of plug holes are vertically opened on the notches at both ends of the bearing seat, and a plug block is fixedly installed at the bottom of each limit seat, and the plug block is adapted to the plug hole and plugged in and connected.

[0017] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0018] 1. By arranging structures such as a table, a bearing seat, a support frame and a control mechanism above the base, the roller changing process can be easily controlled, and the design of the arc-shaped grooves at both ends of the bearing seat can effectively carry and place the replaced upper support roller, which facilitates the process of upper and lower rollers, and the control mechanism is used to control the distance between the two bearing seats, so that the distance between the two bearing seats can be adjusted to a suitable distance according to upper support rollers of different sizes, so that the two ends of the upper support roller can be stably placed and supported. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is the general assembly drawing of the overall structure of the utility model;

[0021] Figure 2 It is a three-dimensional diagram of the overall structure of the utility model;

[0022] Figure 3 It is an exploded view from the first perspective of the overall structure of the utility model;

[0023] Figure 4 It is an exploded view from a second perspective of the overall structure of the utility model;

[0024] Figure 5 For this utility model Figure 1 Magnified view of area A.

[0025] Description of reference numerals:

[0026] 1. Base; 11. Slide; 12. Universal wheel; 2. Table; 21. Column; 22. Connector; 3. Bearing seat; 31. Notch; 32. Limit seat; 33. Insert block; 34. Socket; 4. Support frame; 41. Roller; 5. Unloading plate; 6. Control mechanism; 61. Screw rod; 62. Nut seat; 63. Push rod; 64. Handle. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The utility model provides Figure 1-5 The upper supporting roller changing device shown in the figure comprises a base 1, which provides stable support for the roller changing device to ensure that the device remains stable during the process of changing the supporting rollers. A table plate 2 is arranged above the base 1, and the table plate 2 is a placement and installation platform for a bearing seat 3 and a control mechanism 6. The two ends of the table plate 2 are respectively slidably installed with bearing seats 3, and the two ends of the bottom of each bearing seat 3 are vertically fixed with support frames 4. Every two support frames 4 at the same end form a group. A control mechanism 6 is arranged below the table plate 2, and the control mechanism 6 is used to control the spacing adjustment of the two bearing seats 3;

[0029] Both ends of the bearing seat 3 are provided with arc-shaped slots 31, and the design of the arc-shaped slots 31 facilitates the entry and exit of both ends of the upper supporting roller. The slots 31 at both ends of the bearing seat 3 are provided with limit seats 32;

[0030] The control mechanism 6 comprises:

[0031] The screw rod 61 is arranged at the center line below the table 2, and a handle 64 is fixedly installed at the front end of the screw rod 61;

[0032] The two nut seats 62 are respectively threadedly connected to the two ends of the screw rod 61, and the two nut seats 62 make opposite or relative movements on the screw rod 61. Push rods 63 are laterally fixedly installed on both sides of the two nut seats 62. Every two push rods 63 at the same end form a group. Each group of push rods 63 is respectively located on the outside of the two groups of support frames 4, and the front end of each push rod 63 is fixedly connected to the outside of the corresponding support frame 4 by bolts.

[0033] Furthermore, in the above technical solution, slide grooves 11 are provided on both sides of the upper surface of the base 1, the length of the slide grooves 11 is less than the length of the table 2, and universal wheels 12 are fixedly installed at the four corners of the bottom of the base 1, which improve the mobility and stability of the equipment.

[0034] Furthermore, in the above technical solution, a roller 41 is rotatably installed at the bottom of each support frame 4, and the bottom of the roller 41 at the bottom of each support frame 4 is slidably connected to the corresponding slide groove 11, so that the support frame 4 can drive the bearing seat 3 to move back and forth on the base 1 and the table 2, thereby facilitating the adjustment of the distance between the two bearing seats 3.

[0035] Furthermore, in the above technical scheme, a unloading plate 5 is provided at the front end of the two bearing seats 3, and the replaced upper support roller can be easily unloaded through the unloading plate 5. The tail end of the unloading plate 5 is rotatably connected to the front end of the bearing seat 3. The length of the unloading plate 5 is smaller than the length of the support frame 4. Columns 21 are vertically fixed on both sides of the bottom of both ends of the table plate 2. The columns 21 are fixedly connected to the base 1, and the table plate 2 is stably supported by the columns 21.

[0036] Furthermore, in the above technical solution, the table plate 2 is in an I-shaped structure, and its I-shaped structure design can prevent the side of the upper support roller from interfering with the table plate 2. Connectors 22 are fixedly installed at the middle positions of both ends of the bottom of the table plate 2, and both ends of the screw rod 61 are respectively inserted into the lower ends of the two connecting members 22, and the two ends of the screw rod 61 are rotatably connected to the lower ends of the two connecting members 22.

[0037] Furthermore, in the above technical solution, a plurality of insertion holes 34 are vertically opened on the slots 31 at both ends of the bearing seat 3, and an insertion block 33 is fixedly installed at the bottom of each limit seat 32. The insertion block 33 is adapted to the insertion hole 34 and is plugged and connected, so that the position of the limit seat 32 on the slot 31 is adjusted according to the end diameter of the upper support roller of different sizes.

[0038] The working process of the upper support roller changing device provided by the utility model when in use is as follows:

[0039] Place the new upper support roller on the notch 31 at the rear ends of the two bearing seats 3 of the device, and install the limit seat 32 at the notch 31, then face the front end of the device toward the front of the hot rolling mill, and then push the device to the position of the old upper support roller of the hot rolling mill, remove the fixings at both ends of the old upper support roller of the hot rolling mill, and then push the old upper support roller to the notch 31 at the front ends of the two bearing seats 3 of the device, and install the limit seat 32 at the notch 31, then rotate the device to align the new upper support rollers at the rear ends of the two bearing seats 3 with the front of the hot rolling mill, and then push the new upper support roller onto the hot rolling mill, and install the fixings at both ends of the new upper support roller to connect it to the hot rolling mill.

[0040] After the new upper support roller is installed, push the device to remove it and move it to the unloading area of ​​the old support roller, then unfold the two unloading plates 5 at the front ends of the two bearing seats 3, and install the support members at the bottom of the lower ends of the two unloading plates 5 to tilt the two unloading plates 5 to a certain angle, then remove the limit seats 32 at the rear ends of the two bearing seats 3, and push the old upper support roller to make it automatically roll down along the unloading plates 5, so as to easily and quickly complete the unloading of the old support roller.

[0041] When replacing the upper support roller, according to the different sizes of the upper support roller, the screw rod 61 is rotated by the handle 64, and then the nut seats 62 at both ends of the screw rod 61 drive the push rods 63 on both sides to make relative or opposite movements. When it is necessary to reduce the distance between the two bearing seats 3, the two nut seats 62 move relative to each other on the screw rod 61, and then the push rods 63 on both sides of the two nut seats 62 push the support frame 4 at the corresponding position to make relative movements, and then the roller 41 at the bottom of the support frame 4 moves the slide groove 11 above the base 1, and the top of the support frame 4 drives the bearing seat 3 to move.

[0042] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An upper support roll changing device, comprising a base (1), characterized in that: A tabletop (2) is arranged above the base (1), and bearing seats (3) are slidably mounted at both ends of the tabletop (2), and support frames (4) are vertically fixedly mounted at both ends of the bottom of each bearing seat (3), and every two support frames (4) at the same end form a group, and a control mechanism (6) is arranged below the tabletop (2); Both ends of the bearing seat (3) are provided with arc-shaped notches (31), and the notches (31) at both ends of the bearing seat (3) are provided with limit seats (32); The control mechanism (6) comprises: A screw rod (61) is arranged at the center line below the platform (2), and a handle (64) is fixedly mounted on the front end of the screw rod (61); Two nut seats (62) are respectively threadedly sleeved on the two ends of the screw rod (61), and the two nut seats (62) make opposite or relative movements on the screw rod (61). Push rods (63) are transversely fixedly installed on both sides of the two nut seats (62). Every two push rods (63) at the same end form a group. Each group of push rods (63) is respectively located on the outside of two groups of support frames (4), and the front end of each push rod (63) is fixedly connected to the outside of the corresponding support frame (4) by bolts.

2. The upper support roll changing device according to claim 1 is characterized in that: Slide grooves (11) are provided on both sides of the upper surface of the base (1), the length of the slide grooves (11) is less than the length of the table plate (2), and universal wheels (12) are fixedly installed at the four corners of the bottom of the base (1).

3. The upper support roll changing device according to claim 2 is characterized in that: A roller (41) is rotatably mounted on the bottom of each support frame (4), and the bottom of the roller (41) at the bottom of each support frame (4) is slidably connected to the corresponding slide groove (11).

4. The upper support roll changing device according to claim 1, characterized in that: A discharge plate (5) is provided at the front end of the two bearing seats (3), the tail end of the discharge plate (5) is rotatably connected to the front end of the bearing seat (3), the length of the discharge plate (5) is smaller than the length of the support frame (4), and columns (21) are vertically fixedly installed on both sides of the bottom of both ends of the table plate (2), and the columns (21) are fixedly connected to the base (1).

5. The upper support roll changing device according to claim 1, characterized in that: The table top (2) is in an I-shaped structure, and connecting pieces (22) are fixedly installed at the middle positions of both ends of the bottom of the table top (2), and the two ends of the screw rod (61) are respectively inserted into the lower ends of the two connecting pieces (22), and the two ends of the screw rod (61) are rotatably connected to the lower ends of the two connecting pieces (22).

6. The upper support roll changing device according to claim 1, characterized in that: A plurality of insertion holes (34) are vertically provided on the notches (31) at both ends of the bearing seat (3), and an insertion block (33) is fixedly installed at the bottom of each limit seat (32), and the insertion block (33) is adapted to the insertion hole (34) and is plugged and connected.

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