Supporting table for roller detection

Abstract

The embodiment of the utility model provides a supporting table for roller detection, which comprises a rotary supporting assembly, and the rotary supporting assembly comprises a first rack and four carrier rollers which are arranged at the same height; the four carrier rollers are hinged to the top of the rack in a rectangular array mode, and rotating shafts of the carrier rollers are horizontally arranged in the left-right direction. The distance between the left and right side-by-side carrier rollers is smaller than the length of the roller and larger than the minimum distance between the left side shaft neck and the right side shaft neck of the roller; and the distance between the outer surfaces of the two adjacent front and back carrier rollers is smaller than the outer diameter of the shaft neck. After the technical scheme is adopted, the roller does not need to be detected through a grinding machine like the prior art, the special supporting table is adopted to undertake the detection task, the carrier roller is rotated in a manual mode, then the roller is controlled to rotate, the rotating speed can be matched with the detection requirement, and missed detection is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel production, in particular to a support table for roll detection. Background Art

[0002] As the main spare part for the rolling production of a rolling mill, the quality of a cold rolling work roll (or simply referred to as a roll) is extremely important. Before each use, its quality needs to be detected. The detection of a roll is divided into quality detection and flaw detection, and the roll needs to be rotated during these two detection processes. At present, there is no special support equipment for roll detection in the industry. Generally, a grinding machine is borrowed to complete the detection work. After the roll is hoisted onto the grinding machine before detection, the mechanical rotation of the grinding machine is used to drive the roll to rotate.

[0003] In the process of implementing the present utility model, the inventor found that there are at least the following problems in the prior art:

[0004] In the existing detection method, since the rotation speed of the grinding machine itself is relatively high, and the roll detection is a very delicate work that requires as slow a rotation speed as possible, and sometimes it is also desired to stop when the roll rotates to a specific angle. Therefore, there is a problem of mismatch between the rotation speed of the grinding machine and the speed required for detection, resulting in easy omission of detection. Therefore, how to make the rotation speed of the roll meet the actual detection requirements to avoid the occurrence of missed detection is a problem that needs to be solved. Content of the Utility Model

[0005] The embodiment of the present utility model provides a support table for roll detection to solve the problem of mismatch between the rotation speed of the grinding machine and the detection requirement in the prior art, which leads to missed detection.

[0006] To achieve the above object, the embodiment of the present utility model provides a support table for roll detection, including a first frame and four idler rollers arranged at the same height; the four idler rollers are respectively hinged to the top of the frame in a rectangular array, and the rotation axes of the idler rollers are all horizontally arranged in the left-right direction; the distance between two adjacent idler rollers arranged side by side is less than the length of the roll to be detected and greater than the minimum distance between the journal at the left side and the journal at the right side of the roll to be detected; two adjacent idler rollers in the front-rear direction do not contact each other, and the distance between the outer surfaces of these two idler rollers is less than the outer diameter of the journal of the roll to be detected.

[0007] Further, the idler roller includes a cylindrical roller body and a wear-resistant layer coated on the outer side of the roller body, and the material of the wear-resistant layer is nylon.

[0008] Further, the support table for roll detection further includes two first belt pulleys, the first belt pulleys are connected to the outer shaft ends of two idler rollers on the same side, and a second belt pulley is also connected to the first frame. The second belt pulley is located below the first belt pulleys on the same side, and the second belt pulley is connected to the two first belt pulleys through a synchronous belt.

[0009] Further, the support table for roll detection further includes a handwheel, and the handwheel is connected to the second pulley.

[0010] Further, a reversing mechanism is provided between the handwheel and the second pulley; the axis of the handwheel is perpendicular to the axis of the second pulley; the reversing mechanism includes a mutually perpendicular input shaft and output shaft, the head end of the input shaft is coaxially connected to the handwheel, a first bevel gear is provided at the end of the input shaft, a second bevel gear is provided at the head end of the output shaft, the end of the output shaft is coaxially connected to the second pulley, and the first bevel gear meshes with the second bevel gear.

[0011] Further, the handwheel is arranged outside the front end face of the first frame.

[0012] Further, the support table for roll detection further includes a chain, one end of the chain is connected to the first frame, and the other end of the chain is snap-fitted to the handwheel.

[0013] Further, a second frame is further connected behind the first frame, and fixing seats are symmetrically arranged at the left and right ends of the top of the second frame; the fixing seats are V-shaped structures with openings facing upward; a wear-resistant layer is provided on the upper surface of the fixing seats.

[0014] Further, first side brackets are respectively arranged at the front and rear ends of the first frame, and when the roll to be detected contacts the supporting roller, the top end of the first side bracket is higher than the top surface of the roll to be detected; second side brackets are respectively arranged at the front and rear ends of the second frame, and when the roll to be detected is placed on the fixing seat, the top end of the second side bracket is higher than the top surface of the roll to be detected.

[0015] The above technical solution has the following beneficial effects:

[0016] After adopting this technical solution, instead of borrowing a grinding machine to detect the roll as in the prior art, a special support table is used to undertake the detection task, and the supporting roller is rotated manually, so that the roll is controlled to rotate, and the rotation speed can match the detection requirements, improving the detection quality, effectively avoiding missed detection, and thus ensuring the normal operation of the rolling mill.

[0017] In addition, this technical solution also has the following characteristics:

[0018] 1. When the prior art borrows a grinding machine to detect the roll, it occupies the grinding time of the grinding machine, thus affecting the grinding work efficiency. After adopting this technical solution, the grinding work will no longer be interfered by the roll detection work.

[0019] 2. In the prior art, due to the different lengths of the rolls, it is necessary to move the saddle of the grinding machine to a suitable position to manufacture good rolls during inspection. Therefore, the adjustment time is long and the detection efficiency is low. After adopting this solution, support platforms for roll detection with corresponding specifications can be prepared according to different specifications of rolls, realizing dedicated machines for dedicated use and reducing the adjustment time.

[0020] 3. When using the prior art for inspection on the grinding machine, the operation is inconvenient and there is a certain danger. Therefore, two people need to cooperate in the operation. After adopting this solution, since the equipment is dedicated to roll detection, the idler rotates at a low speed and is rotated manually, and a single person can complete the roll detection operation, thus reducing the cost.

[0021] 4. The equipment of this application does not require energy and there is no need to lay wires on the ground. At the same time, an oil receiving tank is designed for the equipment. The oil stains dripping from the idler are caught by the oil receiving tank, the equipment area is clean, and the ground is clean without oil stains, which helps to improve the sanitation condition of the workshop. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the 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 also be obtained based on these drawings.

[0023] Figure 1 is a schematic structural diagram of a support platform for roll detection according to an embodiment of the present invention;

[0024] Figure 2 is Figure 1 the schematic cross-sectional view taken along line A-A in

[0025] Reference numerals in the drawings: 1. First frame; 2. Locking chain; 3. Coupling; 4. Handwheel; 5. Idler; 6. First side bracket; 7. First pulley; 8. Timing belt; 9. Second pulley; 10. Connecting plate; 11. Second side bracket; 12. Fixed seat; 13. Second frame; 20. Roll to be detected; 21. Journal. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] Such as Figure 1 、Figure 2 As shown in Figure 2 , an embodiment of the present utility model provides a support platform for roll detection, which includes a first frame 1 and four idler rollers 5 arranged at the same height; the four idler rollers 5 are distributed in a rectangular array and are hinged to the top of the first frame 1 through bearings and bearing seats, and the rotating shafts of the idler rollers 5 are all horizontally arranged in the left-right direction; the distance between two adjacent idler rollers 5 arranged side by side is less than the length of the roll 20 to be detected and greater than the minimum distance between the journal 21 on the left side and the journal 21 on the right side of the roll 20 to be detected; the distance between the outer surfaces of two adjacent idler rollers 5 in the front-rear direction is less than the outer diameter of the journal 21.

[0028] To solve the foregoing problems, instead of borrowing a grinding machine to inspect the roll as in the prior art, the present application designs a dedicated support platform to undertake the detection task. During use, the axis of the roll 20 to be detected is aligned with the left-right direction of the support platform, and then through a lifting device, the roll 20 to be detected is lifted above the support platform and slowly lowered so that the journal 21 on the left side and the journal 21 on the right side are both placed on the corresponding idler rollers 5, that is, the journal 21 on the left side is supported by the two idler rollers 5 on the left side, and the journal 21 on the right side is supported by the two idler rollers 5 on the right side. At this time, by manually rotating one side of the idler roller 5 (so that the two idler rollers 5 on the same side rotate synchronously), the roll 20 to be detected can be driven to rotate in the reverse direction, thus facilitating the development of the roll detection work. During the detection process, the rotation speed can be controlled in real time according to needs and even stopped at any time, so that the rotation speed of the roll is controlled, enabling its rotation speed to match the detection requirements, improving the detection quality, effectively avoiding missed inspections, and thus ensuring the normal operation of the rolling mill. At the same time, two adjacent idler rollers 5 in the front-rear direction should not touch, and an appropriate distance should be left between their outer surfaces, and this distance should not be greater than the journal 21, otherwise the roll 20 to be detected cannot be supported.

[0029] In addition, the dimensions of the first frame 1 and related components should be adjusted according to each specification of the roll (the roll 20 of the 1250mm unit) to achieve dedicated machine for dedicated use, thereby reducing the adjustment time during work and improving the detection efficiency.

[0030] Further, the size of the idler 5 should be reasonably designed so that the outer diameter of the idler 5 is slightly larger than the outer diameter of the journal 21 of the roller 20 to be detected. And the distance between two adjacent idlers 5 should be reasonably set. For example, the axle distance between two idlers 5 can be 1.2 - 1.5 times the outer diameter of the journal 21. For example, in a specific implementation, for the roller 20 of the 1250mm unit, the outer diameter of its journal 21 is 250mm. At this time, the outer diameter of the idler 5 is designed to be 290mm, and the axle distance between two adjacent idlers 5 is 325mm (about 1.3 times the outer diameter of the journal 21). At this time, the distance between the outer surfaces of the two idlers 5 is 35mm. It is verified by actual measurement that good technical effects can be obtained at this time: the roller 20 to be detected can rotate flexibly on the idler 5, and is firmly supported and not easy to roll off the idler 5.

[0031] Further, since the idler 5 needs to rotate relative to the roller 20 to be detected during the detection process, it is preferably to coat a wear-resistant layer made of a non-metallic material (preferably nylon or rubber) on the outer side of the roller body made of metal to avoid abrasion to the outer surface of the roller 20 to be detected.

[0032] Further, in the way that the operator directly manually pushes the idler 5, it is very difficult to ensure that the two idlers 5 on the same side are completely synchronous. Therefore, in this technical solution, two first belt pulleys 7 are also connected to the outer shaft ends of the two idlers 5 on the same side (that is, both of the two first belt pulleys 7 are located on the left side or both are located on the right side). A second belt pulley 9 is also connected to the first frame 1, and the second belt pulley 9 is located below the two first belt pulleys 7 on the same side. The second belt pulley 9 is connected to the two first belt pulleys 7 by a synchronous belt 8. By rotating the second belt pulley 9, the two first belt pulleys 7 can be driven to rotate synchronously, so that the two idlers 5 can also rotate synchronously. It should be noted that in this application, only one side needs to be provided with a belt pulley for driving, and the idler 5 on the other side can rotate accordingly without additionally arranging a belt pulley.

[0033] Further, for the convenience of operation, it is preferably to provide a handwheel 4 on the first frame 1. The simplest solution is to coaxially connect the handwheel 4 with the second belt pulley 9. By turning the handwheel 4, the second belt pulley 9 can be rotated accordingly.

[0034] Furthermore, if the handwheel 4 is coaxially connected to the second pulley 9, it will cause the second pulley 9 to protrude too far to the side of the first frame 1, making it difficult to arrange and inconvenient for operation. Therefore, a reversing mechanism is also provided between the handwheel 4 and the second pulley 9; the axis of the handwheel 4 is perpendicular to the axis of the second pulley 9; the reversing mechanism includes a mutually perpendicular input shaft and output shaft. The head end of the input shaft is coaxially connected to the handwheel 4 (for example, through the coupling 3 in the figure), the end of the input shaft is provided with a first bevel gear, the head end of the output shaft is provided with a second bevel gear, the end of the output shaft is coaxially connected to the second pulley 9, and the first bevel gear meshes with the second bevel gear. In addition, by setting the transmission ratio in the reversing mechanism, reduction transmission can also be achieved, and the idler roller 5 can be rotated with a smaller input torque, thereby reducing the burden on the operator and achieving more precise angular control of the idler roller 5. In actual application, the reversing mechanism can be the aforementioned bevel gear transmission method, or a worm and worm gear transmission method, etc. At the same time, the reversing mechanism can use commercially available on-site products, such as commonly used transmission boxes in the market.

[0035] Furthermore, the most preferred arrangement is to set the handwheel 4 outside the front end face of the first frame 1. At this time, the operator operates in front of the equipment, which is more convenient for observing the roller 20 to be detected.

[0036] Furthermore, to avoid misoperation, the support table for roller detection also includes a locking chain 2. One end of the locking chain 2 is connected to the first frame 1, and the other end of the locking chain 2 is snap-fitted to the handwheel 4, and the snap-fitting position is on one spoke of the handwheel 4 (the handwheel 4 is a structure formed by a circular rim and several intermediate spokes). At this time, when the length of the locking chain 2 itself is designed reasonably, the locking chain 2 is tightened, making the handwheel 4 unable to rotate.

[0037] Furthermore, a second frame 13 is also provided behind the first frame 1 through a connecting plate 10. Fixed seats 12 are symmetrically arranged at the left and right ends of the top of the second frame 13. The fixed seats 12 are V-shaped structures with openings upward; a wear-resistant layer is provided on the upper surface of the fixed seats 12.

[0038] In addition to the aforementioned rotational detection part that drives the roller 20 to be detected to rotate with the idler roller 5, according to actual needs, this technical solution also provides a second frame 13, and a V-shaped fixed seat 12 is provided on the top of the second frame 13. The roller 20 to be detected can be placed inside the V-shaped opening of the fixed seat 12 to keep the roller 20 to be detected stationary for other item detections.

[0039] Further, first side brackets 6 are respectively arranged at the front and rear ends of the first frame 1. When the roller 20 to be detected contacts the supporting roller 5, the top end of the first side bracket 6 is higher than the top surface of the roller 20 to be detected; second side brackets 11 are respectively arranged at the front and rear ends of the second frame 13. When the roller 20 to be detected is placed on the fixed seat 12, the top end of the second side bracket 11 is higher than the top surface of the roller 20 to be detected. The two side brackets are arranged at the front and rear sides of the roller 20 to be detected, which can prevent the roller 20 to be detected from accidentally slipping during the detection process and causing production safety accidents.

[0040] In the above detailed description, various features are combined in a single embodiment to simplify the present disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than those clearly recited in each claim. On the contrary, as reflected by the appended claims, the present invention is in a state of having fewer features than all the features of the disclosed single embodiment. Therefore, the appended claims are hereby clearly incorporated into the detailed description, where each claim stands alone as a separate preferred embodiment of the present invention.

[0041] In order to enable any person skilled in the art to implement or use the present invention, the above disclosed embodiments have been described. For those skilled in the art; various modification methods of these embodiments are obvious, and the general principles defined herein can also be applied to other embodiments without departing from the spirit and protection scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the widest scope of the principles and novel features disclosed in this application.

[0042] The above described specific embodiments further elaborate on the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A support platform for roll detection, characterized in that, It includes a first frame (1) and four idler rollers (5) arranged at the same height; the four idler rollers (5) are respectively hinged to the top of the frame (1) in a rectangular array, and the rotation axes of the idler rollers (5) are horizontally arranged in the left-right direction; the distance between two adjacent idler rollers (5) arranged side by side left and right is less than the length of the roller to be detected (20) and greater than the minimum distance between the journal (21) on the left side and the journal (21) on the right side of the roller to be detected (20); the distance between the outer surfaces of two adjacent idler rollers (5) arranged front and back is less than the outer diameter of the journal (21).

2. The support table for roll detection according to claim 1, characterized in that, The idler roller (5) includes a cylindrical roller body and a wear-resistant layer coated on the outer side of the roller body.

3. The support table for roll detection according to claim 1, characterized in that, It further includes two first pulleys (7), the first pulleys (7) are connected to the outer shaft ends of two idler rollers (5) on the same side, a second pulley (9) is further connected to the first frame (1), the second pulley (9) is located below the first pulleys (7) on the same side, and the second pulley (9) is connected to the two first pulleys (7) through a timing belt (8).

4. The support platform for roll detection according to claim 3, characterized in that, It further includes a handwheel (4), and the handwheel (4) is connected to the second pulley (9).

5. The support platform for roll detection according to claim 4, characterized in that, A reversing mechanism is further arranged between the handwheel (4) and the second pulley (9); the axis of the handwheel (4) is perpendicular to the axis of the second pulley (9); the reversing mechanism includes a mutually perpendicular input shaft and output shaft, the head end of the input shaft is coaxially connected to the handwheel (4), a first bevel gear is arranged at the end of the input shaft, a second bevel gear is arranged at the head end of the output shaft, the end of the output shaft is coaxially connected to the second pulley (9), and the first bevel gear meshes with the second bevel gear.

6. The support table for roll detection according to claim 5, characterized in that The handwheel (4) is arranged outside the front end face of the first frame (1).

7. The support platform for roll detection according to claim 6, characterized in that, It further includes a locking chain (2), one end of the locking chain (2) is connected to the first frame (1), and the other end of the locking chain (2) is snap-connected to the handwheel (4) through a buckle.

8. The support table for roll detection according to claim 1, characterized in that, A second frame (13) is further connected behind the first frame (1), fixed seats (12) are symmetrically arranged at the left and right ends of the top of the second frame (13), and the fixed seats (12) are V-shaped structures with openings upward; a wear-resistant layer is arranged on the upper surface of the fixed seats (12).

9. The support platform for roll detection according to claim 8, characterized in that, First side brackets (6) are respectively arranged at the front and rear ends of the first frame (1), and when the roller to be detected (20) contacts the idler rollers (5), the top ends of the first side brackets (6) are higher than the top surface of the roller to be detected (20); second side brackets (11) are respectively arranged at the front and rear ends of the second frame (13), and when the roller to be detected (20) is placed on the fixed seats (12), the top ends of the second side brackets (11) are higher than the top surface of the roller to be detected (20).

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