Automatic roller changing device

Abstract

The utility model relates to the technical field of rolling mill auxiliary equipment, and provides an automatic roll changing device which comprises a bottom frame. The suspender is rotationally arranged relative to the underframe; the plurality of clamping bases are arranged in a sliding manner relative to the suspender; the clamping piece is rotationally arranged on the clamping base, a first included angle is formed between the clamping piece and the clamping base, and a clamping opening used for clamping a roller is formed between the clamping piece and the clamping base; by means of the technical scheme, the problems that in the prior art, the types of tools for replacing rollers are multiple, and universality is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for rolling mills, and particularly to an automatic roll changing device. Background Art

[0002] The backup roll is a component of the rolling mill and is also one of the components with a relatively high frequency of maintenance and repair in the rolling mill. Therefore, after the backup roll is used for a certain period of time or when an abnormal failure occurs, the backup roll needs to be replaced and maintained.

[0003] There are differences in the model sizes of the backup rolls. At the same time, in addition to the backup rolls in the rolling mill, there are also other rolls involved. Generally, enterprises will have roll changing equipment. Generally, one type of tooling corresponds to one type of roll. Therefore, multiple types of tooling need to be prepared on site to match multiple rolls, resulting in poor versatility of the tooling. Moreover, these toolings occupy a relatively large space in the rolling mill workshop and increase the cost of equipment maintenance. Therefore, it is necessary to improve and optimize the existing technology and provide a device with high versatility to realize the replacement and maintenance of rolls. Summary of the Utility Model

[0004] The utility model provides an automatic roll changing device, which solves the problems of multiple types of tooling and poor versatility for roll replacement in the related art.

[0005] The technical solution of the utility model is as follows:

[0006] An automatic roll changing device includes:

[0007] A chassis;

[0008] A suspension rod rotatably arranged relative to the chassis;

[0009] A plurality of clamping bases slidably arranged relative to the suspension rod;

[0010] A clamping member rotatably arranged on the clamping base, with a first included angle between the clamping member and the clamping base, and a clamping opening for clamping the roll formed between the clamping member and the clamping base.

[0011] As a further technical solution, the number of the clamping bases is preferably two, and the two clamping bases are symmetrically distributed on both sides of the roll.

[0012] As a further technical solution, two clamping members are rotatably arranged on any one of the clamping bases, the two clamping members are symmetrically distributed, and the rotation directions of the two clamping members are opposite.

[0013] As a further technical solution, it further includes:

[0014] A number of linear drivers I, one end of any one of the linear drivers I is only hinged to one of the clamping members, and the other end is only hinged to one of the clamping bases.

[0015] As a further technical solution, it further includes:

[0016] A base, which is slidably and rotatably arranged relative to the boom;

[0017] A slide bar, which is arranged on the clamping base and is slidably connected to the base, and the sliding direction of the slide bar is perpendicular to the sliding direction of the base;

[0018] A toothed belt, which is arranged on the slide bar;

[0019] A transmission gear, which is rotatably arranged on the base and is meshed with the toothed belt;

[0020] A rotation driver I, which is arranged on the base, and the output power is used to drive the transmission gear to rotate.

[0021] As a further technical solution, it further includes:

[0022] A limit member I, which is arranged at the end of the slide bar and is used to prevent the slide bar from separating from the base;

[0023] A guide member, which is arranged on the slide bar and is slidably connected to the base.

[0024] As a further technical solution, it further includes:

[0025] A turntable I, which is rotatably arranged on the boom;

[0026] A rotation driver II, which is arranged on the boom, and the output power is used to drive the turntable I to rotate;

[0027] A guide rod, which is arranged on the turntable I;

[0028] A turntable II, which is slidably arranged on the guide rod, and the base is arranged on the turntable II;

[0029] A linear driver II, which is arranged on the turntable I, and the output power is used to drive the turntable II to slide.

[0030] As a further technical solution, it further includes:

[0031] A wheel seat I, which is rotatably arranged on the chassis;

[0032] A runner I, which is rotatably arranged on the wheel seat I and is in rolling connection with the ground.

[0033] As a further technical solution, it further includes:

[0034] A vertical rod, which is arranged on the suspension rod and rotatably connected to the chassis;

[0035] A rotary drive three, which is arranged on the chassis, and the output power is used to drive the vertical rod to rotate.

[0036] As a further technical solution, it further includes:

[0037] A counterweight bracket, which is rotatably arranged on the chassis;

[0038] A rotary drive four, which is arranged on the chassis, and the output power is used to drive the counterweight bracket to rotate;

[0039] A counterweight, which is slidably arranged on the counterweight bracket;

[0040] A linear drive three, which is arranged on the counterweight bracket, and the output power is used to drive the counterweight to slide;

[0041] A wheel seat two, which is rotatably arranged on the counterweight bracket;

[0042] A runner two, which is rotatably arranged on the wheel seat two and is in rolling connection with the chassis.

[0043] The working principle and beneficial effects of the present utility model are as follows:

[0044] In the present utility model, the roll changing device includes a chassis, a suspension rod, a plurality of clamping bases and clamping members; at least one clamping member is arranged on any one clamping base; when there is one clamping member on the clamping base, the clamping opening is V-shaped, and when the number of clamping members is more than one, the inner wall of the clamping opening is polygonal; during use, the chassis is moved to the working area, and the suspension rod is driven to rotate by an external force until the suspension rod rotates to the upper part of one end of the roll; the clamping base and the clamping member are driven to approach the roll until the clamping member and the clamping base are in extrusion contact. At this time, a clamping opening is formed by the clamping base and the clamping member and is clamped on the outer circumference of the roll. Multiple clamping bases are used to form multiple clamping connections on the outer circumference of the roll to complete the fixation of the roll; then the chassis is moved to take out the roll to be maintained, and correspondingly, the roll to be replaced can be placed at the working position through the roll changing device.

[0045] When changing the roll, there is a roll-changing device at each end of the roll, and the two roll-changing devices respectively fix and clamp one end of the roll. During normal operation, the clamping member and the clamping base are relatively fixed. When the roll model changes greatly, the clamping member can be driven to rotate, thereby adjusting the size of the first angle, and further adjusting the size and shape of the bayonet, so that the bayonet can better adapt to the roll to be maintained and improve the applicable range of the roll-changing device. At the same time, if the sizes of the two ends of the roll are inconsistent, the sizes of the first angles on the two roll-changing devices can be adaptively adjusted respectively, and then the clamping and fixing of the roll can be completed to realize the roll-changing operation. Through the above settings, the versatility of the roll-changing device can be improved, the types and quantities of roll-changing tooling can be reduced, and the input cost of maintaining equipment can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The following will further illustrate the above-mentioned characteristics, technical features, advantages and their implementation manners of the present invention in a clear and easy-to-understand manner in conjunction with the drawings of the preferred embodiments.

[0047] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0048] Figure 2 is Figure 1 a partial enlarged view of part A in

[0049] Figure 3 is Figure 1 a partial enlarged view of part B in

[0050] Figure 4 is a schematic structural diagram of the joint of the clamping base, the base and the turntable II of the present invention;

[0051] In the figure: 1, chassis; 2, suspension rod; 3, clamping base; 4, clamping member; 5, linear drive I; 6, base; 7, sliding rod; 8, toothed belt; 9, transmission gear; 10, rotary drive I; 11, stopper I; 12, guide member; 13, turntable I; 14, rotary drive II; 15, guide rod; 16, turntable II; 17, linear drive II; 18, wheel seat I; 19, runner I; 20, vertical rod; 21, rotary drive III; 22, counterweight bracket; 23, rotary drive IV; 24, counterweight; 25, linear drive III; 26, wheel seat II; 27, runner II. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and other embodiments can be obtained.

[0053] For the sake of simplicity of the drawings, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product as a whole. In addition, for the sake of simplicity and easy understanding of the drawings, for the components with the same structure or function in some drawings, only one of them is schematically shown, or only one of them is labeled. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0054] In this article, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0055] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0056] Example 1, referring to Figures 1 - 2 and Figure 4 , which is the first embodiment of the present utility model, and an automatic roll changing device is proposed.

[0057] In this embodiment, the roll changing device includes a chassis 1, a suspension rod 2, several clamping bases 3 and clamping members 4; at least one clamping member 4 is provided on any one clamping base 3; when there is one clamping member 4 on the clamping base 3, the clamping opening is V-shaped, and when the number of clamping members 4 is more than one, the inner wall of the clamping opening is polygonal; during use, the chassis 1 is moved to the working area, and the suspension rod 2 is driven to rotate by an external force until the suspension rod 2 rotates to the upper part of one end of the roll; the clamping base 3 and the clamping member 4 are driven to approach the roll until the clamping member 4 and the clamping base 3 are in pressing contact. At this time, a clamping opening is formed by the clamping base 3 and the clamping member 4 and is clamped on the outer circumference of the roll. Multiple clamping bases 3 are used to form multiple clamping connections on the outer circumference of the roll to complete the fixation of the roll; then the chassis 1 is moved to remove the roll to be maintained, and correspondingly, the roll to be replaced can be placed at the working position through the roll changing device.

[0058] When changing the roll, there is a roll-changing device at each end of the roll, and the two roll-changing devices respectively fix and clamp one end of the roll. During normal operation, the clamping member 4 and the clamping base 3 are relatively fixed. When the roll model changes greatly, the clamping member 4 can be driven to rotate, thereby adjusting the size of the first included angle and further adjusting the size and shape of the bayonet, so that the bayonet can better adapt to the roll to be maintained and improve the applicable range of the roll-changing device. At the same time, if the sizes of the two ends of the roll are inconsistent, the sizes of the first included angles on the two roll-changing devices can be adaptively adjusted respectively, and then the clamping and fixing of the roll can be completed to realize the roll-changing operation. Through the above settings, the versatility of the roll-changing device can be improved, the types and quantities of roll-changing tooling can be reduced, and the input cost of maintenance equipment can be reduced.

[0059] Embodiment 2, referring to Figures 1 - 2 and Figure 4 , which is the second embodiment of the present invention. On the basis of Embodiment 1, in this embodiment, the number of clamping bases 3 is further limited. In this embodiment, the number of clamping bases 3 is preferably two. During operation, the two clamping bases 3 are respectively located on both sides of the roll. On the basis of realizing the clamping and fixing of the roll, the number of clamping bases 3 is reduced, the equipment structure is simplified, and the operation difficulty is reduced.

[0060] Embodiment 3, referring to Figures 1 - 2 and Figure 4 , which is the third embodiment of the present invention. On the basis of Embodiment 2, in this embodiment, the number of clamping members 4 is further limited, and a linear driver 1 5 is added. In this embodiment, two clamping members 4 are provided on each clamping base 3; the two clamping members 4 are symmetrically distributed on both sides of the clamping base 3. When the roll model changes, the linear driver 1 5 is started. The linear driver 1 5 is preferably hydraulically driven with stable working pressure; the linear driver 1 5 extends or contracts, thereby driving the clamping member 4 to rotate on the clamping base 3 to complete the adjustment of the first included angle.

[0061] Embodiment 4, referring to Figures 1 - 2 and Figure 4, which is the fourth embodiment of the present utility model. On the basis of the second embodiment, this embodiment further adds a base 6, a slide bar 7, a toothed belt 8, a transmission gear 9, a first rotation driver 10, a first limiting member 11 and a guiding member 12. When in use, an external force is applied to drive the hanging rod 2 to move above the roller. At this time, the two clamping bases 3 are respectively located on both sides of the roller. Start the first rotation driver 10, and the first rotation driver 10 is preferably a motor driven by electricity. The power output by the first rotation driver 10 drives the transmission gear 9, the toothed belt 8 and the slide bar 7 in sequence. The number of the slide bar 7 and the toothed belt 8 is preferably two. The sliding directions of the two slide bars 7 are opposite. The slide bar 7 drives the clamping base 3 and the clamping member 4 to gradually approach the roller until the bayonet is clamped to the outer circumferential surface of the roller. At this time, the first rotation driver 10 stops power output. The clamping and fixing of the roller is completed. By means of the transmission gear 9 driving the two toothed belts 8 to slide synchronously, the overall displacement speed of the clamping base 3 and the clamping member 4 is increased, and at the same time, by virtue of its symmetric distribution characteristics, the stability of the clamping and fixing of the roller is improved. When the slide bar 7 slides, with the guiding function of the guiding member 12, the rotation of the slide bar 7 is prevented, resulting in the failure of the clamping operation. The limiting member can prevent the slide bar 7 from separating from the base 6, improving the stability and safety of the operation of the roll changing device.

[0062] Embodiment Five, referring to Figures 1 - 2 and Figure 4 , which is the fifth embodiment of the present utility model. On the basis of the second embodiment, this embodiment further adds a base 6, a slide bar 7, a toothed belt 8, a transmission gear 9, a first rotation driver 10, and further adds a first turntable 13, a second rotation driver 14, a guiding rod 15, a second turntable 16 and a second linear driver 17. Both the first rotation driver 10 and the second rotation driver 14 are selected as motors driven by electricity, and the second linear driver 17 is selected as an electric cylinder or a hydraulic cylinder driven by electricity. When in use, the hanging rod 2 first drives the clamping base 3 to move above the roller. Then start the second linear driver 17, and the second linear driver 17 outputs power to drive the second turntable 16 to slide downward along the guiding rod 15 until the two clamping bases 3 are respectively located on both sides of the roller, and then the second linear driver 17 stops power output. At this time, start the first rotation driver 10, and drive the clamping bases 3 and the clamping members 4 on both sides of the roller to approach each other by means of the power output by the first rotation driver 10 until the clamping and fixing of the roller are completed. Then start the second linear driver 17 again to drive the second turntable 16 to slide upward along the guiding rod 15 to complete the operation of taking out the roller.

[0063] The second rotation driver 14 can be started to drive the first turntable 13, the guiding rod 15 and the second turntable 16 to rotate synchronously, facilitating the roll changing device to be applicable to various working environments and improving the application range of the roll changing device.

[0064] Embodiment Six, referring to Figure 1, which is the sixth embodiment of the present utility model. On the basis of the first embodiment, in this embodiment, a wheel seat 18 and a runner 19 are further added, which facilitate the movement of the chassis 1 and the adjustment of the movement direction.

[0065] Embodiment Seven. Refer to Figures 1 - 3 , which is the seventh embodiment of the present utility model. On the basis of the first embodiment, in this embodiment, a vertical rod 20, a rotary actuator three 21, a counterweight bracket 22, a rotary actuator four 23, a counterweight 24, a linear actuator three 25, a wheel seat two 26 and a runner two 27 are further added; both the rotary actuator three 21 and the rotary actuator four 23 are preferably motors driven by electricity, and the linear actuator three 25 is an electric cylinder or a hydraulic cylinder driven by electricity.

[0066] During use, the power output by the rotary actuator three 21 drives the pre-set meshing-connected gears and toothed rings to drive the boom 2 to adjust its orientation, and then move the clamping base 3 and the clamping member 4 above the roller; at the same time, start the rotary actuator four 23, and the power output by the rotary actuator four 23 drives the counterweight bracket 22 to rotate on the chassis 1 until the orientation of the counterweight bracket 22 is opposite to that of the boom 2, and then stop the power output of the rotary actuator four 23; then start the linear actuator three 25, and drive the counterweight 24 to slide a certain distance on the counterweight bracket 22 through the power output by the linear actuator three 25, and then the counterweight 24 stops sliding; with the help of the counterweight bracket 22 and the counterweight 24, it is ensured that the center of gravity of the roll changing device will not deviate greatly, improving the overall stability of the roll changing device during operation; avoiding the tipping phenomenon of the roll changing device; when the counterweight bracket 22 rotates, the runner two 27 rotates on the chassis 1, and with the help of the wheel seat two 26 and the runner two 27, the friction force received during the rotation of the counterweight bracket 22 is reduced, the wear is reduced, and the operation efficiency of the roll changing device is improved.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. An automatic roll changing device, characterized in that, Comprising: A chassis (1); A suspension rod (2), rotatably arranged relative to the chassis (1); A plurality of clamping bases (3), slidably arranged relative to the suspension rod (2); A clamping member (4), rotatably arranged on the clamping base (3), having a first included angle between the clamping member (4) and the clamping base (3), and a clamping opening for clamping a roller is formed between the clamping member (4) and the clamping base (3).

2. The automatic roll changing device according to claim 1, characterized in that, The number of the clamping bases (3) is two, and the two clamping bases (3) are symmetrically distributed on both sides of the roller.

3. The automatic roll changing device according to claim 2, characterized in that, Two of the clamping members (4) are rotatably arranged on any one of the clamping bases (3), the two clamping members (4) are symmetrically distributed, and the rotation directions of the two clamping members (4) are opposite.

4. The automatic roll changing device according to claim 3, characterized in that, Further comprising: A plurality of linear actuators I (5), one end of any one of the linear actuators I (5) is only hinged to one of the clamping members (4), and the other end is only hinged to one of the clamping bases (3).

5. An automatic roll changing device according to claim 2, characterized in that, Further comprising: A base (6), slidably and rotatably arranged relative to the suspension rod (2); A sliding rod (7), arranged on the clamping base (3) and slidably connected to the base (6), the sliding direction of the sliding rod (7) is perpendicular to the sliding direction of the base (6); A toothed belt (8), arranged on the sliding rod (7); A transmission gear (9), rotatably arranged on the base (6), meshed and connected to the toothed belt (8); A rotary actuator I (10), arranged on the base (6), and the output power is used to drive the transmission gear (9) to rotate.

6. The automatic roll changing device according to claim 5, characterized in that, Further comprising: A limiting member I (11), arranged at the end of the sliding rod (7) for preventing the sliding rod (7) from separating from the base (6); A guiding member (12), arranged on the sliding rod (7) and slidably connected to the base (6).

7. An automatic roll changing device according to claim 5, characterized in that, Further comprising: A turntable I (13), rotatably arranged on the suspension rod (2); A rotary actuator II (14), arranged on the suspension rod (2), and the output power is used to drive the turntable I (13) to rotate; A guiding rod (15), arranged on the turntable I (13); A turntable II (16), slidably arranged on the guiding rod (15), and the base (6) is arranged on the turntable II (16); A linear actuator II (17), arranged on the turntable I (13), and the output power is used to drive the turntable II (16) to slide.

8. An automatic roll changing device according to claim 1, characterized in that, Further comprising: A wheel seat I (18), rotatably arranged on the chassis (1); A runner I (19), rotatably arranged on the wheel seat I (18), and in rolling connection with the ground.

9. An automatic roll changing device according to claim 1, characterized in that Further comprising: A vertical rod (20), arranged on the suspension rod (2) and rotatably connected to the chassis (1); A rotary actuator III (21), arranged on the chassis (1), and the output power is used to drive the vertical rod (20) to rotate.

10. An automatic roll changing device according to claim 9, characterized in that, Further comprising: A counterweight bracket (22), rotatably arranged on the chassis (1); A rotary actuator IV (23), arranged on the chassis (1), and the output power is used to drive the counterweight bracket (22) to rotate; A counterweight member (24), slidably arranged on the counterweight bracket (22); Linear drive three (25), which is arranged on the counterweight bracket (22), and the output power is used to drive the counterweight (24) to slide; Wheel seat two (26), which is rotatably arranged on the counterweight bracket (22); Runner two (27), which is rotatably arranged on the wheel seat two (26) and is in rolling connection with the chassis (1).

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