Automatic roll changing device for back-up roll and rolling mill

Abstract

The invention discloses an automatic roll changing device for a back-up roll and a rolling mill, and relates to the technical field of back-up rolls. The automatic roll changing device for the back-up roll comprises a support, a roll changing mechanism and a roll changing mechanism, the lifting mechanism is arranged on one side of the bracket; the two sliding rails are oppositely arranged on the support in the horizontal direction; the sliding frame is obliquely arranged on the side, away from the lifting mechanism, of the support and located below the sliding rail; the lifting platform is movably arranged on the two sliding rails; the connecting piece is connected with one end, far away from one side of the lifting mechanism, of the lifting platform; and the carrier is connected with one end, far away from one side of the lifting platform, of the connecting piece. According to the invention, the problems of low roller replacement efficiency and long roller replacement time due to the adoption of a mode of manually hoisting a working roller transverse moving bridge frame in the existing supporting roller replacement operation are solved.

Description

Technical Field

[0001] The invention relates to the technical field of support rollers, and in particular to an automatic support roller changing device and a rolling mill. Background Art

[0002] In recent years, my country's steel product market has undergone significant changes. The hot-rolled strip market, especially the medium and narrow strip market, is extremely hot, and the demand for medium and narrow strips has also soared.

[0003] Among them, the support roll is an important component in the rolling mill, which is used to support the working roll or the intermediate roll to prevent the working roll from bending and deformation, which may affect the output and quality of the plates and strips. The essence of the support roll is the rolling roll that supports the working roll. By setting the support roll, the diameter of the working roll can be reduced and the stiffness of the working roll can be enhanced.

[0004] However, the existing support roll replacement operation adopts the method of manually lifting the working roll away from the transverse bridge, which has the problems of low roll replacement efficiency and long roll replacement time. In view of the above problems, no effective solution has been proposed yet. Summary of the invention

[0005] Purpose of the invention: To provide a support roll automatic roll changing device and a rolling mill to solve at least one of the problems existing in the above-mentioned prior art.

[0006] Technical solution: A support roller automatic roller changing device, comprising: Bracket; A lifting mechanism is arranged on one side of the bracket; Two slide rails are arranged on the bracket opposite to each other in a horizontal direction; A slide bracket is obliquely arranged on the bracket away from the lifting mechanism and is located below the slide rail; A lifting platform is movably arranged on the two slide rails; A connecting member connected to one end of the lifting platform away from the lifting mechanism; and A carrier connected to one end of the connecting member away from the lifting platform; Wherein, the lifting mechanism is rotated in a preset direction, so that the lifting platform moves from the first preset position to the second preset position, and drives the connecting member and the carrier to move synchronously and directional.

[0007] Preferably, the lifting mechanism comprises: a driving component having one end connected to the bottom surface, an output end of the driving component is provided with a rotating member rotatably connected to the bracket, and a movable end of the rotating member is against or away from the bottom of the lifting platform.

[0008] Preferably, the driving component is a hydraulic cylinder, and the hydraulic cylinder drives the rotating member to rotate in a preset direction.

[0009] Preferably, the rotating member is a V-shaped swing arm, and the swing arm rotates in a preset direction so that the lifting platform moves along a preset trajectory.

[0010] Preferably, the connecting member is a connecting rod, and both ends of the connecting rod are rotatably connected to the lifting platform and the carrier respectively, so that the lifting platform, the connecting rod and the carrier are interlocked; Among them, when the lifting platform moves according to the preset trajectory, one end of it drives the connecting rod to move synchronously and directional, and the connecting rod drives the carrier to move in the same direction, so that the carrier carrying the support roller moves to the specified position.

[0011] Preferably, the carrier is a roller changing vehicle or a load-bearing vehicle.

[0012] Preferably, the lifting platform comprises: a lifting body, movable parts are respectively arranged at the bottom of the lifting body, and a bottom plate is arranged at the bottom of the movable parts.

[0013] Preferably, there are multiple movable parts, and the multiple movable parts are evenly arranged at the bottom of the base plate.

[0014] Preferably, the height of the connecting member at one end close to the lifting platform is greater than the height of the connecting member at one end close to the carrier.

[0015] In order to achieve the above objective, according to another aspect of the present application, a rolling mill is also provided.

[0016] The rolling mill according to the present application comprises the automatic support roll changing device as described above.

[0017] Beneficial effect: In the embodiment of the present application, an automatic roller changing method is adopted, and the lifting mechanism is rotated in a preset direction to move the lifting platform from a first preset position to a second preset position, and drive the connecting parts and the carrier to move synchronously and directional, thereby achieving the purpose of rapid roller changing, thereby achieving the technical effect of reducing roller changing time and improving efficiency, and further solving the technical problems of low roller changing efficiency and long roller changing time in the existing support roller changing operation using manual lifting from the working roller transverse bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the automatic support roller changing device of the present invention; and Figure 2 It is a schematic diagram of the supporting roller changing state of the supporting roller automatic roller changing device of the present invention.

[0019] The accompanying drawings are marked as follows: 10. Bracket; 20. Lifting mechanism; 201. Driving component; 202. Rotating member; 30. Slide rail; 40. Slide; 50. lifting platform; 501. lifting body; 502. movable part; 503. bottom plate; 60. Connectors; 70. Vehicles; 80. Support roller. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] like Figure 1-2 As shown, the present application relates to an automatic support roll changing device and a rolling mill. The automatic support roll changing device comprises: a bracket 10; the bracket 10 refers to a support frame body, which can achieve good fixing and supporting effects, and at the same time, can also achieve good coordination effects with other components, thereby achieving multiple functional effects.

[0025] The lifting mechanism 20 is arranged on one side of the bracket 10 and can achieve a good lifting effect, thereby achieving the effect of driving other components to move, thereby ensuring a stable driving effect.

[0026] Specifically, the lifting mechanism 20 drives the movement of the lifting platform 50 by controlling the extension and contraction of a hydraulic cylinder, a motor or a cylinder, and realizes the smooth and precise lifting and lowering of the platform through a precise transmission system. In the present application, a hydraulic cylinder is preferred.

[0027] The two slide rails 30 are arranged on the bracket 10 relatively in the horizontal direction, so as to realize a good sliding effect for other components, thereby realizing a directional movement effect.

[0028] Specifically, the slide rail 30 is made of a highly wear-resistant material to ensure that it can maintain smooth and stable sliding performance for a long time under frequent use. In addition, the slide rail 30 is also designed with an anti-skid device to prevent the lifting platform 50 from getting stuck or the platform from being unbalanced due to uneven load or external interference.

[0029] The slide 40 is obliquely arranged on the bracket 10 away from the side of the lifting mechanism 20 and is located below the slide rail 30; it can achieve a good sliding effect for other components, thereby ensuring a good displacement effect; wherein the slide 40 is a fixed slide 40; it can prevent displacement.

[0030] Specifically, the function of the slide 40 is to guide the lifting platform 50 to move to a specified position along the slide 40, thereby ensuring the precise positioning of the platform; at the same time, the slide 40 can reduce friction through its inclined structure, thereby ensuring the smoothness of the lifting platform 50 during movement, and enhancing the stability of the lifting platform 50 during movement, thereby preventing the platform from deflecting or getting stuck.

[0031] The lifting platform 50 can be movably arranged on the two slide rails 30, so as to achieve a good assembly effect, thereby ensuring a good activity effect of the lifting platform 50, and further achieving the effect of driving other components to move synchronously.

[0032] The connecting member 60 is connected to one end of the lifting platform 50 away from the lifting mechanism 20 , so as to achieve a good connection effect between the components, thereby ensuring a good mechanical transmission effect.

[0033] The carrier 70 is connected to one end of the connecting member 60 away from the lifting platform 50 , and can achieve a good load-bearing effect, thereby achieving the effect of driving the supporting roller 80 to move to a preset position.

[0034] The lifting mechanism 20 rotates in a preset direction to move the lifting platform 50 from the first preset position to the second preset position, and drives the connecting member 60 and the carrier 70 to move synchronously and directional.

[0035] Specifically, the lifting mechanism 20 provides a stable driving force and a transmission system to smoothly transmit the power of the lifting mechanism 20 to the lifting platform 50; the lifting platform 50 moves from the first preset position to the second preset position through the rotation of the lifting mechanism 20. During this process, the connecting member 60 and the carrier 70 also move synchronously and directional, ensuring the precise coordination between the lifting platform 50, the connecting member 60 and the carrier 70, and avoiding equipment failure or instability caused by the asynchrony of the various parts.

[0036] From the above description, it can be seen that the present application achieves the following technical effects: In the embodiment of the present application, an automatic roller changing method is adopted. The lifting mechanism 20 rotates in a preset direction to move the lifting platform 50 from the first preset position to the second preset position, and drives the connecting member 60 and the carrier 70 to move synchronously and directional, thereby achieving the purpose of rapid roller changing, thereby achieving the technical effect of reducing roller changing time and improving efficiency, and further solving the technical problems of low roller changing efficiency and long roller changing time in the existing support roller 80 roller changing operation using manual lifting from the working roller transverse bridge.

[0037] Furthermore, the lifting mechanism 20 includes: a driving component 201 connected to the bottom surface at one end, a rotating member 202 rotatably connected to the bracket 10 is provided at the output end of the driving component 201, and the movable end of the rotating member 202 is against or away from the bottom of the lifting platform 50. It can be understood that a stable driving force effect can be provided, thereby achieving a good lifting effect, and further achieving the effect of controlling the directional movement of the lifting platform 50.

[0038] Further, the driving component 201 is a hydraulic cylinder, and the hydraulic cylinder drives the rotating member 202 to rotate in a preset direction. It can be understood that the hydraulic cylinder realizes telescopic movement through the pressure change of hydraulic oil, and under the control of the hydraulic system, the thrust of the hydraulic cylinder causes the rotating member 202 to rotate in a preset direction.

[0039] The hydraulic cylinder as the driving component 201 has the advantage of providing greater thrust and stable movement. The hydraulic drive system has excellent stability and efficiency in lifting operations with large loads, and is particularly suitable for occasions that require precise control and large loads. By controlling the extension and retraction of the hydraulic cylinder, the lifting process of the lifting platform 50 can be carried out accurately.

[0040] Furthermore, the rotating member 202 is a V-shaped swing arm, and the swing arm rotates in a preset direction to move the lifting platform 50 in a preset trajectory. It can be understood that the swing arm has good mechanical properties and efficient power transmission capabilities, and the structure of the swing arm enables it to perform stable rotational motion in a preset direction after being driven by the hydraulic cylinder; by controlling the extension and contraction of the hydraulic cylinder, the swing arm can rotate along a certain angle, thereby pushing the lifting platform 50 to slide along the slide 40 in a directional manner.

[0041] The V-shaped swing arm helps to provide smooth rotation during the lifting process, reducing the deviation or vibration caused by asymmetric forces, making the movement of the lifting platform 50 smoother and more efficient.

[0042] Further, the connecting member 60 is a connecting rod, and both ends of the connecting rod are rotatably connected to the lifting platform 50 and the carrier 70 respectively, so that the lifting platform 50, the connecting rod and the carrier 70 are interlocked; Among them, when the lifting platform 50 moves according to the preset trajectory, one end of it drives the connecting rod to move synchronously and directional, and the connecting rod drives the carrier 70 to move in the same direction, so that the carrier 70 carries the support roller 80 to the specified position. It can be understood that by driving the V-shaped swing arm to rotate through the hydraulic cylinder, and cooperating with the linkage structure of the connecting rod and the carrier 70, objects such as the support roller 80 can be efficiently and accurately moved to the specified position. By accurately controlling the movement trajectory of the lifting platform 50, the connecting rod is driven to move synchronously and directional, and finally the carrier 70 carrying the support roller 80 or other items is stably moved to the target position.

[0043] Further, the carrier 70 is a roller changing vehicle or a load-bearing vehicle. It can be understood that a good load-bearing effect can be achieved, so that the supporting roller 80 that needs to be replaced can be moved to a specified position.

[0044] Furthermore, the lifting platform 50 includes a lifting body 501, a movable part 502 is respectively arranged at the bottom of the lifting body 501, and a bottom plate 503 is arranged at the bottom of the movable part 502. It can be understood that the lifting platform 50 is a device that can be lifted up and down, and its main function is to carry objects and move them within a specific height range. It is usually composed of multiple components to ensure its stability, reliability and smooth lifting process.

[0045] The lifting body 501 is the core part of the lifting platform 50, and is a key component that carries and supports the entire lifting structure. It is the main frame or structure of the lifting platform 50, and is responsible for realizing the vertical lifting movement of the platform. The lifting body 501 is usually composed of a metal frame, supporting components, etc., which can bear the load and ensure the stability of the lifting platform 50.

[0046] The movable part 502 refers to a movable part arranged at the bottom of the lifting body 501, which enables the lifting body 501 to be displaced or adjusted to a certain extent under certain conditions. The movable part 502 includes but is not limited to: wheels, sliders, rollers, etc., so that the lifting platform 50 can be easily moved or adjusted in different usage scenarios.

[0047] The movable parts 502 can help the lifting platform 50 move on the horizontal plane and provide flexibility, especially when the platform needs to be moved from one position to another. These movable parts 502 usually cooperate with the supporting structure to make it easier for the lifting platform 50 to adjust its position by sliding or rotating.

[0048] The bottom of the movable part 502 is provided with a bottom plate 503, which is a structural component located at the bottom of the movable part 502 and usually plays a supporting and stabilizing role. The arrangement of the bottom plate 503 can enhance the stability of the entire lifting platform 50, so that it can remain stable during the movement and prevent the platform from tilting or collapsing due to unstable or unbalanced forces.

[0049] The bottom plate 503 ensures that the lifting platform 50 can provide uniform support under different ground conditions. It can disperse pressure and improve the load-bearing capacity. Especially when the lifting platform 50 is loaded with a large load, the load-bearing capacity of the bottom plate 503 is particularly important. The bottom plate 503 can also effectively reduce friction when in contact with the ground, preventing unnecessary wear of the movable part 502 or the lifting platform 50 during movement.

[0050] Furthermore, there are multiple movable members 502, and the multiple movable members 502 are evenly arranged at the bottom of the bottom plate 503. It can be understood that a good assembly effect can be achieved, and at the same time, a stable structure can be ensured.

[0051] Further, the height of the connecting member 60 at one end close to the lifting platform 50 is greater than the height of the connecting member 60 at one end close to the carrier 70. It can be understood that a good transmission effect can be ensured, thereby achieving a good movement effect.

[0052] Here’s how this application works: When the support roller 80 needs to be replaced, the hydraulic cylinder in the lifting mechanism 20 extends to make the lifting platform 50 detach from the lifting mechanism 20 and fall onto the fixed slide 40. The roller replacement hydraulic cylinder pulls the support roller 80 to remove the frame, and the connecting rod 60 is connected to the lifting platform 50. The support roller 80 pushes the lifting platform 50 to slide up and down on the fixed slide 40 through the connecting rod 60. The support roller 80 moves to the roller replacement position. At this time, the upper space is completely opened, and the support roller 80 can be directly lifted and replaced. The installation of the support roller 80 is the opposite of the above process.

[0053] The present application also relates to a rolling mill, comprising the automatic support roll changing device as described above.

[0054] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. Automatic support roller changing device, characterized in that: include: Bracket (10); A lifting mechanism (20) is arranged on one side of the bracket (10); Two slide rails (30) are arranged on the support (10) in a horizontal direction and opposite to each other; A slide frame (40) is obliquely arranged on the bracket (10) at a side away from the lifting mechanism (20) and is located below the slide rail (30); A lifting platform (50) is movably arranged on the two slide rails (30); A connecting member (60) connected to an end of the lifting platform (50) away from the lifting mechanism (20); and A carrier (70) connected to one end of the connecting member (60) at a side away from the lifting platform (50); The lifting mechanism (20) is rotated in a preset direction, so that the lifting platform (50) moves from a first preset position to a second preset position, and drives the connecting member (60) and the carrier (70) to move synchronously and directional.

2. The automatic support roller changing device according to claim 1 is characterized in that: The lifting mechanism (20) comprises: a driving component (201) having one end connected to the bottom surface; an output end of the driving component (201) is provided with a rotating member (202) rotatably connected to the bracket (10); and a movable end of the rotating member (202) is against or away from the bottom of the lifting platform (50).

3. The automatic support roller changing device according to claim 2 is characterized in that: The driving component (201) is a hydraulic cylinder, and the hydraulic cylinder drives the rotating member (202) to rotate in a preset direction.

4. The automatic support roller changing device according to claim 2 is characterized in that: The rotating member (202) is a V-shaped swing arm, and the swing arm rotates in a preset direction to enable the lifting platform (50) to move along a preset trajectory.

5. The automatic support roller changing device according to claim 1, characterized in that: The connecting member (60) is a connecting rod, and both ends of the connecting rod are rotatably connected to the lifting platform (50) and the carrier (70) respectively, so that the lifting platform (50), the connecting rod and the carrier (70) are interlocked; When the lifting platform (50) moves along a preset trajectory, one end thereof drives the connecting rod to move synchronously and directional, and the connecting rod drives the carrier (70) to move in the same direction, so that the carrier (70) carrying the supporting roller moves to a specified position.

6. The automatic support roller changing device according to claim 1, characterized in that: The carrier (70) is a roller changing vehicle or a carrying vehicle.

7. The automatic support roller changing device according to claim 1, characterized in that: The lifting platform (50) comprises a lifting body (501), movable parts (502) are respectively arranged at the bottom of the lifting body (501), and a bottom plate (503) is arranged at the bottom of the movable parts (502).

8. The automatic support roller changing device according to claim 7, characterized in that: There are multiple movable parts (502), and the multiple movable parts (502) are evenly arranged at the bottom of the bottom plate (503).

9. The automatic support roller changing device according to claim 1, characterized in that: The height of the connecting member (60) at one end close to the lifting platform (50) is greater than the height of the connecting member (60) at one end close to the carrier (70).

10. A rolling mill, characterized in that It comprises the automatic support roller changing device as described in any one of claims 1 to 9.

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