Dismounting device for push-up cylinder of rolling mill

Abstract

The invention relates to the technical field of rolling mill push-up cylinders, in particular to a rolling mill push-up cylinder dismounting device which is provided with a walking assembly, a lifting assembly and a jacking assembly, and the whole dismounting process is easy and convenient to operate, time-saving and labor-saving. Meanwhile, the connecting assembly is arranged to be capable of bearing pulling force enabling the rolling mill push-up cylinder to be separated from the rolling mill base, the connecting assembly can be prevented from being disconnected when the jacking frame is jacked, and therefore the dismounting process is safer.

Description

Technical Field

[0001] The invention relates to the technical field of rolling mill push-up cylinders, in particular to a rolling mill push-up cylinder disassembly device. Background Art

[0002] The rolling mill push cylinder is an indispensable part of the rolling mill, and the rolling mill push cylinder is usually installed on the rolling mill base. When the rolling mill push cylinder needs to be disassembled, it is generally pulled up by hand with a chain hoist to separate it from the base. The rolling mill push cylinder is placed on a transport trolley and moved out by the transport trolley. Since the rolling mill push cylinder is firmly matched with the base and its own weight is relatively large, when the hand chain hoist is used for pulling, multiple people are required to operate, which is time-consuming and laborious. In addition, when the hand chain hoist is used to pull the rolling mill push cylinder out of the base, the tension on the wire rope of the hand chain hoist is greater than the gravity of the rolling mill push cylinder, and the wire rope is prone to breakage, causing safety hazards. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a rolling mill push cylinder disassembly device, which is used to solve the problem that when a hand winch is used to disassemble the rolling mill push cylinder in the prior art, it is time-consuming and labor-intensive, and the wire rope of the hand winch is easily broken, causing safety hazards.

[0004] To achieve the above-mentioned purpose and other related purposes, the present invention provides a rolling mill push cylinder disassembly device, the disassembly device comprises a walking assembly, a lifting assembly and a jacking assembly, the jacking assembly is configured to push the rolling mill push cylinder out of the rolling mill base, the jacking assembly comprises a jacking frame, a plurality of jacks and a connecting assembly, the plurality of jacks are evenly and vertically fixedly arranged along the peripheral wall of the jacking frame, the connecting assembly is used to fix the rolling mill push cylinder with the jacking frame and can withstand the pulling force that causes the rolling mill push cylinder to be separated from the rolling mill base;

[0005] The lifting assembly is connected to the lifting frame, and the lifting assembly is configured to lift the rolling mill push cylinder that is separated from the rolling mill base;

[0006] The lifting assembly is connected to the traveling assembly, and the traveling assembly is configured to push the lifting cylinder of the rolling mill to an open area.

[0007] Optionally, the connecting assembly includes a plurality of connecting bolts, and the plurality of connecting bolts are respectively passed through each lifting ring of the rolling mill push cylinder, and threaded holes corresponding to the lifting rings are opened on the jacking frame, and the connecting bolts can be threadedly connected to the jacking frame through the threaded holes.

[0008] Optionally, a plurality of the jacks may be lifted synchronously.

[0009] Optionally, the traveling assembly includes a traveling track and a mobile platform trolley, the traveling track is arranged directly above the rolling mill push cylinder, and the mobile platform trolley is configured to be movable along the traveling track.

[0010] Optionally, the mobile platform trolley includes a mobile platform, a plurality of transmission shafts and rollers, a driving assembly and a transmission assembly, the length direction of the transmission shaft is perpendicular to the length direction of the mobile platform, the plurality of transmission shafts are arranged at intervals along the length direction of the mobile platform, the plurality of transmission shafts can be rotatably arranged on the mobile platform along their own axes, and the rollers are coaxially fixedly arranged at both ends of each transmission shaft, and the rollers are rollingly fitted on the walking track;

[0011] The driving assembly includes a reducer, a sprocket and a chain, wherein the reducer is fixedly arranged on the mobile platform, a sprocket is coaxially fixedly arranged on the output shaft of the reducer, a sprocket is coaxially fixedly arranged on one of the transmission shafts, and the sprocket on the reducer is connected to the sprocket on the transmission shaft through the chain transmission;

[0012] The transmission assembly includes a plurality of pulleys and belts. The plurality of pulleys are coaxially fixedly arranged on each of the transmission shafts and are connected through the belt transmission.

[0013] Optionally, the lifting assembly includes a plurality of electric guide chains, and the plurality of electric guide chains are all arranged on the walking assembly.

[0014] Optionally, the lifting frame is provided with lifting ears, and the electric guide chain can be connected to the lifting frame through the lifting ears.

[0015] Optionally, the disassembly device further includes a remote controller, and the walking assembly, the lifting assembly and the jacking assembly are all electrically connected to the remote controller.

[0016] Optionally, the jacking frame is made by welding I-beams and steel plates.

[0017] Optionally, the mobile platforms are all made by welding I-beams.

[0018] In summary, the beneficial effects of the present invention are:

[0019] By setting the traveling assembly, the lifting assembly and the jacking assembly, when it is necessary to dismantle the rolling mill push-up cylinder, the jacking frame cover is set on the rolling mill push-up cylinder, and the rolling mill push-up cylinder is fixedly connected to the lifting frame through the connecting assembly. And the lifting force of the jack is used to lift the lifting frame together with the rolling mill push-up cylinder upward until the rolling mill push-up cylinder is pushed out of the rolling mill base. Then the lifting assembly is connected to the jacking frame, and the lifting assembly is used to lift the jacking frame together with the rolling mill push-up cylinder. Then the lifting assembly is connected to the traveling assembly, and the traveling assembly is used to drive the lifting assembly together with the rolling mill push-up cylinder to an open area, so that subsequent work can be carried out. The entire disassembly process is simple and convenient to operate, saving time and effort. At the same time, the connecting assembly is set to be able to withstand the pulling force that causes the rolling mill push-up cylinder to be separated from the rolling mill base, which can prevent the connecting assembly from being disconnected when the jacking frame is lifted, thereby making the disassembly process safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a rolling mill push cylinder disassembly device according to an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A front view structural diagram of

[0022] Figure 3 It is a schematic diagram of the connection structure between the connection bolts and the jacking frame;

[0023] Figure 4 It is a schematic diagram showing the structure of the sprocket and the chain;

[0024] Figure 5 It is a schematic diagram showing the structure of pulleys and belts. DETAILED DESCRIPTION

[0025] Refer to the following Figures 1 to 5 To describe a rolling mill push cylinder disassembly device of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0026] Unless otherwise clearly defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0027] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0029] like Figure 1-Figure 5As shown, an embodiment of the present invention provides a rolling mill push cylinder disassembly device, and the disassembly device includes a walking assembly, a lifting assembly and a jacking assembly. The jacking assembly is configured to push the rolling mill push cylinder 5 out of the rolling mill base so that the rolling mill push cylinder 5 is separated from the rolling mill base. The jacking assembly includes a jacking frame 31, a plurality of jacks 32 and a connecting assembly. The plurality of jacks 32 are evenly and vertically fixedly arranged along the peripheral wall of the jacking frame 31 so as to jack up the jacking frame 31 through the jacks 32. The connecting assembly is used to fix the rolling mill push cylinder 5 with the jacking frame 31. When the jacking frame 31 is jacked up, the rolling mill push cylinder 5 will also move upward with the jacking frame 31. The connecting assembly can withstand the pulling force that causes the rolling mill push cylinder 5 to detach from the rolling mill base, so as to prevent the connection assembly from being disconnected when the jacking frame 31 is jacked up, and the rolling mill push cylinder 5 cannot be jacked up, and there are certain safety hazards. The lifting assembly is connected to the lifting frame 31, and the lifting assembly is configured to lift the rolling mill push cylinder 5 that is separated from the rolling mill base. The lifting assembly is connected to the walking assembly, and the walking assembly is configured to move the lifted rolling mill push cylinder 5 to an open area for subsequent operation.

[0030] When it is necessary to dismantle the rolling mill push-up cylinder 5, the jacking frame 31 is covered on the rolling mill push-up cylinder 5, and the rolling mill push-up cylinder 5 is fixedly connected to the jacking frame 31 through the connecting assembly. Open the jack 32 so that one end of the jack 32 abuts against the rolling mill platform. Using the lifting force of the jack 32, the jacking frame 31 is lifted upward together with the rolling mill push-up cylinder 5 until the rolling mill push-up cylinder 5 is pushed out of the rolling mill base. Then, the lifting assembly is connected to the jacking frame 31, and the lifting assembly is used to lift the jacking frame 31 together with the rolling mill push-up cylinder 5. Then, the lifting assembly is connected to the walking assembly, and the walking assembly is used to drive the lifting assembly together with the rolling mill push-up cylinder 5 to an open area, so that subsequent work can be carried out. The entire disassembly process is simple and convenient to operate, saving time and effort. At the same time, the connection assembly is configured to withstand the pulling force that causes the rolling mill push cylinder 5 to separate from the rolling mill base, which can prevent the connection assembly from being disconnected when the lifting frame 31 is lifted, thereby making the disassembly process safer.

[0031] Optionally, the lifting frame 31 is a rectangular parallelepiped frame structure as a whole, and the lifting frame 31 is made of I-beam welding. Four jacks 32 are provided, and the four jacks 32 are respectively installed at the four corners of the lifting frame 31. Specifically, the four corners of the lifting frame 31 are provided with mounting frames 33, and the jacks 32 are arranged in the mounting frames 33. The mounting frame 33 includes two vertical plates and a horizontal plate, one end of the vertical plate is fixedly connected to the side wall of the lifting frame 31, and the other end is fixedly connected to the horizontal plate, and the jacks 32 are vertically fixedly arranged on the horizontal plate, and the output end passes through the horizontal plate.

[0032] Further, the connection assembly includes a plurality of connection bolts 34, and the plurality of connection bolts 34 are respectively passed through the respective lifting rings 51 of the rolling mill push-up cylinder 5. Optionally, there are four lifting rings 51 on the rolling mill push-up cylinder 5, and they are respectively arranged at the four corners of the top surface of the rolling mill push-up cylinder 5. Correspondingly, four connection bolts 34 are also provided. The jacking frame 31 is provided with threaded holes 311 corresponding to the lifting rings 51, and the connection bolts 34 can be threadedly connected to the jacking frame 31 through the threaded holes 311.

[0033] When the rolling mill push cylinder 5 needs to be connected to the lifting frame 31, the connecting bolt 34 is passed through the lifting ring 51, and the screw end is threadedly connected in the threaded hole 311. By using the connecting bolt 34 to connect the rolling mill push cylinder 5 to the lifting frame 31, the structure is simple and easy to disassemble. At the same time, the bearing capacity of the connecting bolt 34 is stronger than that of the wire rope.

[0034] Furthermore, multiple jacks 32 can be lifted synchronously. Optionally, the disassembly device further includes a hydraulic pump 35, and the jack 32 is a hydraulic jack. Multiple jacks 32 are all powered by the same hydraulic pump 35, so as to achieve synchronous lifting of the jacks 32. The lifting frame 31 also includes a steel plate welded on the I-beam, and the hydraulic pump 35 is fixedly arranged on the steel plate. Of course, each jack 32 can also be equipped with a hydraulic pump 35, and by controlling multiple hydraulic pumps 35 to start simultaneously, synchronous lifting of the jacks 32 can also be achieved.

[0035] By setting multiple jacks 32 for synchronous lifting, it is easier to maintain the uniformity of the force on the rolling mill push cylinder 5 compared with manual operation, so as to avoid the rolling mill push cylinder 5 from tilting when being lifted, causing quality accidents such as damage to the sealing ring and oil leakage.

[0036] Furthermore, the travel assembly includes a travel track 11 and a mobile platform 12 trolley. The travel track 11 is arranged directly above the rolling mill push cylinder 5. The mobile platform 12 trolley is configured to move along the travel track 11. Optionally, the travel track 11 uses the original track of the rolling mill, and no additional track is required, saving resources. The lifting assembly is connected to the mobile platform 12 trolley, and the mobile platform 12 trolley moves along the travel track 11 to drive the rolling mill push cylinder 5 lifted by the lifting assembly to move.

[0037] Further, the mobile platform 12 trolley includes a mobile platform 12, a plurality of transmission shafts 13 and rollers 14, a driving assembly and a transmission assembly. The length direction of the transmission shaft 13 is perpendicular to the length direction of the mobile platform 12, and the plurality of transmission shafts 13 are arranged at intervals along the length direction of the mobile platform 12. The plurality of transmission shafts 13 can be rotatably arranged on the mobile platform 12 along their own axes, and rollers 14 are coaxially fixedly arranged at both ends of each transmission shaft 13. The rollers 14 roll on the walking track 11. The driving assembly includes a reducer, a sprocket 16 and a chain 17. The reducer is fixed on the mobile platform 12. A sprocket 16 is coaxially fixed on the output shaft of the reducer, and a sprocket 16 is also coaxially fixed on one of the transmission shafts 13. The sprocket 16 on the reducer is connected to the sprocket 16 on the transmission shaft 13 through a chain 17. The transmission assembly includes a plurality of pulleys 18 and a belt 19. The plurality of pulleys 18 are coaxially fixed on each transmission shaft 13, and the plurality of pulleys 18 are connected through a belt 19.

[0038] Optionally, two transmission shafts 13 are provided, four corresponding rollers 14 are provided, and two pulleys 18 are also provided.

[0039] When the mobile platform 12 is required to move along the travel track 11, the drive motor 15 is started, and the drive motor 15 drives the sprocket 16 on the output shaft to rotate, and drives the sprocket 16 on the transmission shaft 13 to rotate through the chain 17, thereby driving the transmission shaft 13 to rotate synchronously. The rotation of the transmission shaft 13 drives the pulley 18 to rotate, and drives the pulleys 18 on other transmission shafts 13 to rotate synchronously through the belt 19, thereby driving all transmission shafts 13 to rotate synchronously. The rotation of the transmission shaft 13 will drive the roller 14 to rotate, so that the roller 14 can roll along the travel track 11.

[0040] Furthermore, the mobile platform 12 is made of I-beams welded together, and the mobile platform 12 is a rectangular frame structure as a whole. The four corners of the upper surface of the mobile platform 12 are respectively provided with lifting ears 4, so as to facilitate the use of a crane to lift the mobile platform 12 trolley onto the walking track 11.

[0041] Furthermore, the lifting assembly includes a plurality of electric guide chains 2, and the plurality of electric guide chains 2 are all arranged on the traveling assembly. Specifically, four electric guide chains 2 are provided and are configured to be lifted synchronously. The four corners of the lower surface of the mobile platform 12 and the four corners of the upper surface of the jacking frame 31 are also respectively provided with lifting ears 4, one end of the electric guide chain 2 is hung on the lifting ear 4 of the mobile platform 12, and the other end is correspondingly hung on the lifting ear 4 of the jacking frame 31. By synchronously driving the four electric guide chains 2, the rolling mill can be lifted by the push cylinder 5, and the structure is relatively simple and easy to operate.

[0042] Furthermore, the disassembly device also includes a remote controller, and the traveling assembly, the lifting assembly, and the jacking assembly are all electrically connected to the remote controller. Specifically, the drive motor 15, the electric guide chain 2, and the hydraulic pump 35 are electrically connected to the remote controller. The traveling assembly, the lifting assembly, and the jacking assembly can be remotely controlled by the remote controller to perform corresponding actions, which is convenient for operation.

[0043] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A rolling mill push cylinder disassembly device, characterized in that: The disassembly device comprises a walking assembly, a lifting assembly and a jacking assembly, wherein the jacking assembly is configured to eject the rolling mill push cylinder from the rolling mill base, and the jacking assembly comprises a jacking frame, a plurality of jacks and a connecting assembly, wherein the plurality of jacks are evenly and vertically fixedly arranged along the peripheral wall of the jacking frame, and the connecting assembly is used to fixedly connect the rolling mill push cylinder with the jacking frame and can withstand the pulling force that causes the rolling mill push cylinder to be separated from the rolling mill base; The lifting assembly is connected to the lifting frame, and the lifting assembly is configured to lift the rolling mill push cylinder that is separated from the rolling mill base; The lifting assembly is connected to the traveling assembly, and the traveling assembly is configured to push the lifting cylinder of the rolling mill to an open area.

2. The rolling mill push cylinder disassembly device according to claim 1, characterized in that: The connecting assembly includes a plurality of connecting bolts, which are respectively passed through the respective lifting rings of the rolling mill push cylinder. The lifting frame is provided with threaded holes corresponding to the lifting rings, and the connecting bolts can be threadedly connected to the lifting frame through the threaded holes.

3. The rolling mill push cylinder disassembly device according to claim 1, characterized in that: A plurality of the jacks can be lifted synchronously.

4. The rolling mill push cylinder disassembly device according to claim 1, characterized in that: The travel assembly comprises a travel track and a mobile platform trolley. The travel track is arranged directly above the rolling mill push cylinder, and the mobile platform trolley is configured to be movable along the travel track.

5. The rolling mill push cylinder disassembly device according to claim 4, characterized in that: The mobile platform trolley comprises a mobile platform, a plurality of transmission shafts and rollers, a driving assembly and a transmission assembly, wherein the length direction of the transmission shaft is perpendicular to the length direction of the mobile platform, the plurality of transmission shafts are arranged at intervals along the length direction of the mobile platform, the plurality of transmission shafts can be rotatably arranged on the mobile platform along their own axes, and the rollers are coaxially fixedly arranged at both ends of each transmission shaft, and the rollers are rollingly fitted on the walking track; The driving assembly includes a reducer, a sprocket and a chain, wherein the reducer is fixedly arranged on the mobile platform, a sprocket is coaxially fixedly arranged on the output shaft of the reducer, a sprocket is coaxially fixedly arranged on one of the transmission shafts, and the sprocket on the reducer is connected to the sprocket on the transmission shaft through the chain transmission; The transmission assembly includes a plurality of pulleys and belts. The plurality of pulleys are coaxially fixedly arranged on each of the transmission shafts and are connected through the belt transmission.

6. The rolling mill push cylinder disassembly device according to claim 1, characterized in that: The lifting assembly includes a plurality of electric guide chains, and the plurality of electric guide chains are all arranged on the walking assembly.

7. The rolling mill push cylinder disassembly device according to claim 6, characterized in that: The lifting frame is provided with lifting eyes, and the electric guide chain can be connected to the lifting frame through the lifting eyes.

8. The rolling mill push cylinder disassembly device according to claim 1, characterized in that: The disassembly device also includes a remote controller, and the walking assembly, the lifting assembly and the jacking assembly are all electrically connected to the remote controller.

9. The rolling mill push cylinder disassembly device according to claim 1, characterized in that: The jacking frame is made by welding I-beams and steel plates.

10. The rolling mill push cylinder disassembly device according to claim 5, characterized in that: The mobile platforms are all made by welding I-beams.

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