A counterweight steel plate rolling device using a full-surface limiting structure

Abstract

The invention discloses a counterweight steel plate rolling device adopting a full-surface limiting structure. The device is for hot rolling of steel plates. The device is basically the same as a conventional rolling process in that two groups of co-located rolling rollers are used to complete the step-by-step rolling process. The difference is that an indentation strip, a pressure component and an auxiliary component are additionally provided for the rolling roller. The function of the indentation strip is to actively roll out a groove of corresponding depth, which can "actively cooperate" with the stress bending process of the steel plate during rolling, and is mainly used to cooperate with the subsequent pressure component. The pressure component is mainly used to detect the thickness of the plate after rolling, and to collect the detection data obtained from the pressure components at multiple positions, to further analyze the curvature of the plate after rolling, and finally to force the curvature to change by the pressure regulating roller in the auxiliary component. The pressure regulating roller does not actively participate in the rolling process, but assists the subsequent rolling process by adjusting the pressure angle of the plate.

Description

Technical Field

[0001] The invention relates to the technical field of steel plate rolling, and in particular to a counterweight steel plate rolling device adopting a full-surface limiting structure. Background Art

[0002] The steel plate rolling process in the production process of elevator counterweight blocks is explained. Since the counterweight block is one of the key structures that affect the operating performance of the elevator, in the process of making the steel plate required for the counterweight block, it is necessary to pay attention to the flatness, thickness, width and other related dimensions of the steel plate.

[0003] The width is determined by the subsequent sawing process parameters, while the flatness and thickness are determined by the rolling process parameters. The essence of the rolling process is to utilize the gap between multiple groups of rollers with different diameters, and to control the flatness by controlling the rolling parameters. However, it should be noted that: because the rolling distance is relatively long and there is a temperature conversion, from the perspective of direct visual judgment, the steel plate after rolling does not have an obvious deformation process, but in fact there are large-span bending, warping and other problems that affect the flatness, which directly affects the subsequent finishing process.

[0004] This application proposes a solution to this problem. Summary of the invention

[0005] The purpose of the present invention is to provide a counterweight steel plate rolling device adopting a full-surface limiting structure. During the rolling process of the elevator counterweight steel plate, because there are temperature changes and pressure effects in the overall process, and the length of the plate during the rolling process is relatively long, the rolled plate has large-span bending, warping and other related problems that affect the flatness.

[0006] The object of the present invention can be achieved by the following technical scheme: A counterweight steel plate rolling device adopting a full-surface limiting structure comprises a support bracket, a plate body and a plurality of rolling rollers, wherein the rolling rollers are arranged at the upper and lower sides of the plate body in the up-down direction, and the rolling rollers are arranged in the support bracket in a direction parallel to the width of the support bracket;

[0007] The support bracket is provided with a pressure component and an auxiliary component corresponding to the rolling roller shaft, the pressure component and the auxiliary component are arranged along the transmission direction of the sheet body, and the pressure component and the auxiliary component are arranged at the middle position of the rolling roller shafts at two adjacent positions;

[0008] The pressure-bearing component includes a displacement sensor, a pressure-bearing arc plate and a connecting arc plate. The auxiliary component consists of a pressure-adjusting roller and an auxiliary roller. The pressure-bearing component and the auxiliary component are arranged on the upper and lower sides of the sheet body. An indentation strip corresponding to the width direction of the supporting bracket is installed on the outer wall of the rolling roller. The cross-section of the pressure-adjusting roller along the width direction of the supporting bracket is polygonal, and the outer curved surface of the pressure-adjusting roller is in the shape of a curved arch along the direction pointing to the sheet body.

[0009] It is further configured as follows: a first motor assembly and a second motor assembly corresponding to the pressure regulating roller and the rolling roller are installed on the outer position of the support bracket, and the pressure regulating roller, the rolling roller and the auxiliary roller are rotatably connected in the support bracket.

[0010] It is further configured as follows: the setting angles of the indentation strips on the rolling roller shaft are different along the vertical direction, and the indentation strips decrease equidistantly along the transmission direction of the sheet body.

[0011] It is further configured as follows: the auxiliary rollers are arranged in mirror symmetry along the arrangement position of the pressure regulating roller, and the auxiliary rollers located at the lower position and the upper tangent plane of the rolling roller are in the same plane.

[0012] It is further configured as follows: the connecting arc plate and one end of the pressure arc plate are hinged, and the hinge position between the connecting arc plate and the pressure arc plate matches the transmission direction of the sheet material body, the pressure arc plate is located close to the sheet material body, and the connecting arc plate is located away from the sheet material body and connected to the transmission rod of the displacement sensor.

[0013] It is further configured that: the cross section of the compressed arc plate is in a curved arch shape along the direction close to the plate body, and the cross section of the connecting arc plate is in a curved arch shape along the direction away from the plate body.

[0014] It is further configured that: the tangent plane on the lower side of the auxiliary roller shaft located at the upper side is higher than the tangent plane on the lower side of the rolling roller shaft located at the upper side.

[0015] It is further configured as follows: a spherical joint is arranged between the end position of the displacement sensor transmission rod and the center point position of the connecting arc plate, the connecting arc plate and the pressure arc plate are arranged in sequence along the width direction of the sheet metal body, and the sum of the widths of each connecting arc plate is greater than or equal to the width of the sheet metal body.

[0016] It is further configured as follows: a connecting arc rod is provided at the other end of the connecting arc plate and the compressed arc plate, the upper end of the connecting arc rod is fixedly connected to the connecting arc plate, the compressed arc plate and the connecting arc rod are slidingly connected, and a connecting spring is provided at the middle position of the connecting arc rod corresponding to the connecting arc plate and the compressed arc plate.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the hot rolling process of steel plates, the process is basically the same as the conventional rolling process in that two sets of rolling rollers are used to complete the step-by-step rolling process. The difference is that the rolling rollers are additionally provided with indentation strips, pressure components and auxiliary components. The function of the indentation strips is to actively form grooves of corresponding depths on the plate in cooperation with the rolling process. The function of the grooves is to "actively cooperate" with the stress bending process of the steel plate during the pressing process. However, its key function is to cooperate with the subsequent rolling process, cooperate with the pressure arc plate and the grooves to detect the thickness of the plate after rolling, and finally gather the pressure components in multiple positions to uniformly calculate the curvature of the plate during rolling;

[0019] 2. In combination with the above content, it should be explained that the auxiliary components do not participate in the rolling process, but cooperate with the pressure-bearing components to perform post-operation, with the pressure-adjusting roller as the main one. By limiting the setting angle of the pressure-adjusting roller, the pressure-adjusting roller may not contact the sheet body, or apply pressure to the sheet body at a small angle. The purpose is to force the curvature to be changed through the pressure-adjusting roller in the auxiliary component, assist the subsequent rolling process by adjusting the pressure angle of the sheet, and reduce the curvature of the entire surface through multi-part fine-tuning actions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic structural diagram of a counterweight steel plate rolling device using a full-surface limiting structure proposed by the present invention;

[0022] Figure 2 This is a front view of a counterweight steel plate rolling device using a full-surface limiting structure during rolling process proposed by the present invention;

[0023] Figure 3 This is a schematic structural diagram of a pressure-bearing component in a counterweight steel plate rolling device using a full-surface limiting structure proposed by the present invention;

[0024] Figure 4 The invention proposes a counterweight steel plate rolling device with a full surface limiting structure. Figure 3 A partial front view of

[0025] Figure 5 The invention proposes a counterweight steel plate rolling device with a full surface limiting structure. Figure 4 The expanded diagram of

[0026] Figure 6 The invention proposes a counterweight steel plate rolling device with a full surface limiting structure. Figure 2 Schematic diagram of the structure of part A.

[0027] In the figure: 1. Support bracket; 2. Pressure regulating roller; 3. Displacement sensor; 4. First motor assembly; 5. Second motor assembly; 6. Sheet body; 7. Pressure arc plate; 8. Connecting arc plate; 9. Rolling roller; 10. Ball joint; 11. Connecting arc rod; 12. Connecting spring; 13. Auxiliary roller; 14. Indentation strip. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: In the rolling process of elevator counterweight steel plate, due to the temperature change and pressure effect in the whole process, and also because the length of the plate is relatively long during the rolling process, the rolled plate has large-span bending, warping and other related problems that affect the flatness. The following technical solution is proposed:

[0030] Reference Figures 1 to 6 In this embodiment, a counterweight steel plate rolling device adopting a full-surface limiting structure comprises a support bracket 1, a plate body 6 and a plurality of rolling rollers 9, wherein the rolling rollers 9 are arranged at the upper and lower sides of the plate body 6 in the up-down direction, and the rolling rollers 9 are arranged in the support bracket 1 in a direction parallel to the width of the support bracket 1;

[0031] The support bracket 1 is provided with a pressure component and an auxiliary component corresponding to the rolling roller shaft 9, and the pressure component and the auxiliary component are arranged along the transmission direction of the sheet body 6, and the pressure component and the auxiliary component are arranged at the middle position of the rolling roller shafts 9 at two adjacent positions;

[0032] The pressure-bearing component includes a displacement sensor 3, a pressure-bearing arc plate 7 and a connecting arc plate 8. The auxiliary component consists of a pressure-adjusting roller 2 and an auxiliary roller 13. The pressure-bearing component and the auxiliary component are arranged on the upper and lower sides of the sheet body 6. An indentation strip 14 corresponding to the width direction of the support bracket 1 is installed on the outer wall of the rolling roller 9. The cross-section of the pressure-adjusting roller 2 along the width direction of the support bracket 1 is polygonal, and the outer curved surface of the pressure-adjusting roller 2 is in the shape of a curved arch along the direction pointing to the sheet body 6. The first motor assembly 4 and the second motor assembly 5 corresponding to the pressure-adjusting roller 2 and the rolling roller 9 are installed on the outer position of the support bracket 1. The pressure-adjusting roller 2, the rolling roller 9 and the auxiliary roller 13 are rotatably connected in the support bracket 1. The setting angle of the indentation strip 14 on the rolling roller 9 is different along the vertical direction, and the indentation strip 14 decreases equidistantly along the transmission direction of the sheet body 6.

[0033] Working principle: Figure 2 Explanation: The sheet body 6 heated to a certain temperature is transmitted at a low speed from right to left and gradually passes through each rolling roller 8. In this process, the gap between the rolling rollers 8 in each group of positions can be adjusted to achieve the purpose of controlling the rolling thickness. This part will not be explained in detail.

[0034] It should be noted that: the rolling roller 8 is further optimized and an indentation strip 14 is added to the rolling roller 8. The nature of the indentation strip 14 will not interfere with the rolling process. Its key purpose is that when the sheet body 6 is rolled to a certain thickness, the indentation strip 14 will form grooves on the upper and lower surfaces of the rolled sheet body 6, and in order to match the formation position of the groove, it is necessary to further limit the setting angle of the indentation strip 14. Because the two rolling rollers 8 are rotating at the same speed and in opposite directions, when the two rolling rollers 8 rotate at the same time, it is necessary to ensure that the two indentation strips 14 are just completely overlapped and close to each other, so as to prevent the sheet body 6 from being rolled to a certain thickness. Figure 6 For example, the rolling roller 8 at the upper position keeps rotating clockwise, and the rolling roller 8 at the lower position keeps rotating counterclockwise. Figure 6 Taking the setting position of the middle indentation strip 14 as an example, when the two rolling rollers 8 rotate 90° at the same time, the two indentation strips 14 just overlap and approach to form a groove;

[0035] The purpose of the groove is mainly to cooperate with the subsequent pressure-bearing components, and it can also play a role in positioning and pulling the slowly moving sheet body.

[0036] Embodiment 2: This embodiment is to explain the pressure-bearing component in Embodiment 1:

[0037] The connecting arc plate 8 and one end of the compressed arc plate 7 are hinged, and the hinge position between the connecting arc plate 8 and the compressed arc plate 7 matches the transmission direction of the sheet material body 6. The compressed arc plate 7 is located close to the sheet material body 6, and the connecting arc plate 8 is located away from the sheet material body 6 and connected to the transmission rod of the displacement sensor 3. The cross-section of the compressed arc plate 7 is in a curved arch shape along the direction close to the sheet material body 6, and the cross-section of the connecting arc plate 8 is in a curved arch shape along the direction away from the sheet material body 6.

[0038] Solution Description: This section refers to Figure 4 and Figure 5 In the initial state, under the action of the connecting spring 12, the compressed arc plate 7 at the upper position rotates counterclockwise along the rotation point at the right position, while the compressed arc plate 7 at the lower position rotates clockwise, which is specifically manifested as follows: Figure 5 In the state represented in the figure, in this state, the gap between the two compressed arc plates 7 is always smaller than the gap between the two rolling rollers 9 in the front position, but when the rolling rollers 9 pass between the two compressed arc plates 7, the compressed arc plates 7 gradually approach the connecting arc plates 8 and the elasticity of the connecting springs 12 reaches the maximum value, thereby driving the connecting arc plates 8 to move upward or downward by a corresponding distance, so that the thickness of the sheet after rolling can be directly obtained in this way;

[0039] It should be noted that the purpose of setting the compressed arc plate 7 to be movable is that: because there will be a cooling process in the overall rolling process, the sheet body 6 will undergo slight changes in the continuous rolling process, and the sheet body 6 may generate vibrations during the rolling process, resulting in the compressed arc plate 7 being able to maintain a certain buffer protection range between the connecting arc plates 8 to avoid excessive stroke changes affecting the displacement sensor 3, and cooperating with the spherical joint 10 therein. Its key role is to ensure that the overall compressed arc plate 7 and the connecting arc plate 8 have a certain range of motion, but it is also necessary to ensure that each compressed arc plate 7 and the connecting arc plate 8 are closely arranged in sequence along the width direction of the sheet body 6, so that the surface of the local part of the sheet body 6 can be fully inspected for thickness, and the thickness value of the sheet body 6 can be obtained by combining the display values ​​on the two displacement sensors 3.

[0040] Embodiment 3: The pressure-bearing component in Embodiment 1 is described in combination with Embodiment 2;

[0041] The auxiliary roller 13 is arranged in a mirror-symmetrical manner along the setting position of the pressure regulating roller 2, and the upper tangent planes of the auxiliary roller 13 and the rolling roller 9 at the lower position are in the same plane, and the lower tangent plane of the auxiliary roller 13 at the upper position is higher than the lower tangent plane of the rolling roller 9 at the upper position. A spherical joint 10 is arranged between the end position of the transmission rod of the displacement sensor 3 and the center point position of the connecting arc plate 8. The connecting arc plate 8 and the pressure arc plate 7 are arranged in sequence along the width direction of the sheet metal body 6, and the sum of the widths of each connecting arc plate 8 is greater than or equal to the width of the sheet metal body 6. A connecting arc rod 11 is arranged at the other end position of the connecting arc plate 8 and the pressure arc plate 7. The upper end position of the connecting arc rod 11 is fixedly connected to the connecting arc plate 8, and the pressure arc plate 7 and the connecting arc rod 11 are slidingly connected. A connecting spring 12 is arranged at the middle position of the connecting arc rod 11 corresponding to the connecting arc plate 8 and the pressure arc plate 7.

[0042] Solution description: The second embodiment is described below. Since the overall sheet material body 6 is relatively long, only a partial thickness inspection cannot fully reflect the overall completeness. Figure 2 To explain: multiple groups of rolling rollers 9 are required to cooperate to complete the rolling work, and the grooves pressed by the indentation strips 14 on each group of rolling rollers 9 can also serve as separation marks, but it should be noted that: there is no indentation strip 14 on the last group of rolling rollers 9. In addition, because the thickness of the sheet body 6 gradually decreases after multiple rollings of the rolling rollers 9, it is also necessary to cooperate to gradually reduce the thickness of the indentation strips 14 until it is reduced to 0;

[0043] It should also be noted that: because the groove surface of the groove is lower than the surface position of the sheet body 6, when the groove position on the sheet body 6 moves to the position corresponding to the compressed arc plate 7, the compressed arc plate 7 is limited by the structural shape of the compressed arc plate 7. In the process of corresponding to the groove, the compressed arc plate 7 is affected by the connecting spring 12 and is close to the inner groove surface position of the groove in a short time. In this state, the displayed value on the displacement sensor 3 is significantly reduced, which can be indicated that the sheet body 6 has been subjected to a period of rolling.

[0044] The key content of this embodiment is that it is necessary to collect the working information of multiple groups of rolling rollers 9 when cooperating with the pressure-bearing components. The working information is mainly represented by the displayed value in the displacement sensor 3. It is necessary to further explain that it is necessary to ensure the rolling action of the rolling roller 9 on the sheet body 6, and it is also necessary to ensure that the entire sheet body 6 is in a relatively flat state. It can be understood that the auxiliary roller 13 located at the lower position will also play a role in supporting the sheet body 6, so that the displayed values ​​of multiple displacement sensors 3 located at the lower position can be used to directly feedback the flatness of the lower position of the sheet body 6. Combined with the steel rolling process, the displayed values ​​on each displacement sensor 3 located at the lower position are not completely consistent, but show a constant fluctuation state along the transmission direction of the sheet body 6. If there is an error in the displayed value of a certain displacement sensor 3 located at the lower position, the second motor assembly 5 can be used to drive the pressure regulating roller 2 located at the lower position to rotate at a small angle, mainly to change the pressure application process of the pressure regulating roller 2 on the sheet body 6;

[0045] On the contrary, the auxiliary roller 13 at the upper position may not contact the sheet body 6. Under normal conditions, the displayed value of the displacement sensor 3 at the upper position will also show a constant fluctuation state. During this process, the auxiliary roller 13 and the pressure regulating roller 2 at the upper position will not contact the sheet body 2. On the contrary, when the displayed value of the displacement sensor 3 in the local position deviates, the pressure application process of the upper part of the sheet body 6 can also be changed by rotating the pressure regulating roller 2 at the upper position, so as to control the entire surface by fine-tuning the local position.

[0046] In summary: for the hot rolling process of steel plates, what is basically the same as the conventional rolling process is that two sets of co-located rolling rollers are used to complete the step-by-step rolling process. The difference is that indentation strips, pressure components and auxiliary components are added to the rolling rollers. The function of the indentation strips is to actively roll out grooves of corresponding depths, which can "actively cooperate" with the stress bending process during steel plate rolling, and is mainly used to cooperate with subsequent pressure components. The pressure components are mainly used to detect the thickness of the plate after rolling, and collect the detection data obtained from the pressure components in multiple positions, further analyze the curvature of the plate after rolling, and finally force the curvature to change through the pressure regulating roller in the auxiliary component. The pressure regulating roller does not actively participate in the rolling process, but adjusts the pressure angle of the plate to assist the subsequent rolling process.

[0047] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A counterweight steel plate rolling device using a full-surface limiting structure, comprising a support bracket (1), a plate body (6) and a plurality of rolling rollers (9), characterized in that: The rolling roller shaft (9) is arranged at upper and lower sides of the plate body (6) in the up-down direction, and the rolling roller shaft (9) is arranged in the support bracket (1) in a direction parallel to the width of the support bracket (1); The support bracket (1) is provided with a pressure component and an auxiliary component corresponding to the rolling roller shaft (9), the pressure component and the auxiliary component are arranged along the transmission direction of the sheet material body (6), and the pressure component and the auxiliary component are arranged at the middle position of two adjacent rolling roller shafts (9); The pressure-bearing component comprises a displacement sensor (3), a pressure-bearing arc plate (7) and a connecting arc plate (8); the auxiliary component comprises a pressure-adjusting roller shaft (2) and an auxiliary roller shaft (13); the pressure-bearing component and the auxiliary component are arranged at upper and lower sides of the sheet material body (6); an indentation strip (14) corresponding to the width direction of the support bracket (1) is installed on the outer wall of the rolling roller shaft (9); the cross section of the pressure-adjusting roller shaft (2) along the width direction of the support bracket (1) is polygonal, and the outer curved surface of the pressure-adjusting roller shaft (2) is in the shape of a curved arch in the direction pointing to the sheet material body (6); The connecting arc plate (8) and one end of the pressure arc plate (7) are hinged, and the hinge position between the connecting arc plate (8) and the pressure arc plate (7) matches the transmission direction of the sheet material body (6). The pressure arc plate (7) is located close to the sheet material body (6), and the connecting arc plate (8) is located away from the sheet material body (6) and is connected to the transmission rod of the displacement sensor (3). The cross section of the pressure arc plate (7) is in the shape of a curved arch along the direction close to the sheet material body (6), and the cross section of the connecting arc plate (8) is in the shape of a curved arch along the direction away from the sheet material body (6). The end position of the transmission rod of the displacement sensor (3) is consistent with the connecting arc plate ( 8) A spherical joint (10) is arranged between the center points, the connecting arc plate (8) and the pressure arc plate (7) are arranged in sequence along the width direction of the plate body (6), and the sum of the widths of each connecting arc plate (8) is greater than or equal to the width of the plate body (6), a connecting arc rod (11) is arranged at the other end of the connecting arc plate (8) and the pressure arc plate (7), the upper end of the connecting arc rod (11) is fixedly connected to the connecting arc plate (8), the pressure arc plate (7) and the connecting arc rod (11) are slidably connected, and a connecting spring (12) is arranged at the middle position of the connecting arc rod (11) corresponding to the connecting arc plate (8) and the pressure arc plate (7).

2. The counterweight steel plate rolling device using a full-surface limiting structure according to claim 1 is characterized in that: A first motor assembly (4) and a second motor assembly (5) corresponding to the pressure regulating roller shaft (2) and the rolling roller shaft (9) are installed at the external position of the support bracket (1); the pressure regulating roller shaft (2), the rolling roller shaft (9) and the auxiliary roller shaft (13) are rotatably connected in the support bracket (1).

3. The counterweight steel plate rolling device using a full-surface limiting structure according to claim 1 is characterized in that: The setting angles of the indentation strips (14) on the rolling roller shaft (9) are different along the vertical direction, and the indentation strips (14) decrease in an equidistant manner along the transmission direction of the sheet material body (6).

4. The counterweight steel plate rolling device using a full-surface limiting structure according to claim 1 is characterized in that: The auxiliary roller shaft (13) is arranged in a mirror-symmetrical manner along the setting position of the pressure regulating roller shaft (2), and the auxiliary roller shaft (13) located at the lower side and the upper tangent plane of the rolling roller shaft (9) are in the same plane.

5. The counterweight steel plate rolling device using a full-surface limiting structure according to claim 4 is characterized in that: The position of the tangent plane on the lower side of the auxiliary roller shaft (13) located at the upper side is higher than the tangent plane on the lower side of the rolling roller shaft (9) located at the upper side.

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