Disassembly and assembly method of HGC hydraulic cylinder of wide and thick plate full hydraulic multi-roller warm straightening machine

Abstract

A method for disassembling and assembling the HGC hydraulic cylinder of a wide and thick plate full hydraulic multi-roller warm straightening machine, wherein the disassembling method of the HGC hydraulic cylinder includes: S1) the step of releasing the peripheral connection parts of the HGC hydraulic cylinder, S2) the step of removing the valve table and / or the valve table of the booster cylinder, S3) the step of installing the slide frame, and S4) the step of moving out and disassembling the HGC hydraulic cylinder; the installation method of the HGC hydraulic cylinder is: s1) the step of moving in and installing the HGC hydraulic cylinder, s2) the step of removing the slide frame, s3) the step of installing the valve table and / or the valve table of the booster cylinder, and s4) the step of connecting the peripheral connection parts of the HGC hydraulic cylinder, that is, the reverse process operation of the HGC hydraulic cylinder disassembling method. The present invention assists in the disassembly and assembly of the HGC hydraulic cylinder through the slide frame, which not only avoids the tilting and lifting of the HGC hydraulic cylinder, a major component, but also avoids the large-scale disassembly and assembly method of removing the upper crossbeam, which facilitates the operation and ensures the safety of personnel and equipment.

Description

Technical Field

[0001] The invention relates to a disassembly and assembly method of an HGC hydraulic cylinder of a wide and thick plate full hydraulic multi-roller warm straightening machine, belonging to the technical field of repair and maintenance of steel plate straightening machines. Background Art

[0002] The wide and thick plate fully hydraulic multi-roller warm straightening machine is one of the main equipment on the hot rolling production line. It is an important equipment to ensure that the steel plate obtains good quality. It is used to overcome the defects of wide and thick steel plates such as warping or wavy bending caused by uneven deformation due to uneven temperature after the wide and thick steel plates pass through the rolling mill or rapid cooling.

[0003] The existing wide and thick plate full hydraulic multi-roller warm straightening machine usually adopts a parallel multi-roller design, such as Figure 1 As shown, it includes two upper beams set up side by side and a pressing frame installed at the bottom of the upper beam, as well as a booster cylinder, a valve table, an HGC hydraulic cylinder and an operating platform, etc., wherein:

[0004] The booster cylinder and the valve table for controlling the HGC hydraulic cylinder are installed side by side on the upper part of the back side of the two upper crossbeams, and the bottom of the upper crossbeam is provided with a seating hole corresponding to the installation position of the HGC hydraulic cylinder;

[0005] The HGC hydraulic cylinder is arranged below the booster cylinder and the HGC hydraulic cylinder, and the HGC hydraulic cylinder is connected to the upper crossbeam through the seating seat at the bottom thereof, and the piston rod of the HGC hydraulic cylinder is connected to the pressing frame;

[0006] In addition, the HGC hydraulic cylinder is also connected to the valve table through hydraulic pipelines, and connected to the valve table and the displacement sensor installed at the bottom of the HGC hydraulic cylinder for measuring the movement of the HGC hydraulic cylinder piston rod through electrical lines;

[0007] The operating platform is arranged on the outer periphery of the upper cross beam and is located between the upper cross beam and the pressing frame.

[0008] HGC hydraulic cylinder is the abbreviation of hydraulic gap control (HGC for short). The wide and thick plate full hydraulic multi-roller warm straightening machine uses HGC hydraulic cylinder to control the roll gap. The signals sent by the displacement sensor and the pressure sensor close and open the inlet and outlet roll gaps to achieve the purpose of constant roll gap and meet the straightening requirements of the head and tail of the steel plate. It is one of the main components of the wide and thick plate full hydraulic multi-roller warm straightening machine.

[0009] When the HGC hydraulic cylinder is initially installed, it is usually put in place before the upper beam is installed. Since the upper beam and the equipment on it are not in place, there is no equipment component blocking the top of the HGC hydraulic cylinder. Therefore, the HGC hydraulic cylinder can be directly hoisted into place using a crane and in conjunction with a hoist.

[0010] However, during the maintenance of the wide and thick plate full hydraulic multi-roller warm straightening machine, due to the obstruction of equipment such as the upper crossbeam, the operating space is very small and the disassembly, assembly and replacement of the HGC hydraulic cylinder is very difficult. Generally, it is necessary to call on a crane and two hoists to disassemble it by oblique reverse transportation. When reinstalling, the same method of oblique pulling and reverse transportation is also required to complete the position.

[0011] Since the working space on the wide and thick plate fully hydraulic multi-roller warm straightening machine is very small and it is inconvenient for personnel to stand, the traditional HGC hydraulic cylinder disassembly and assembly method is difficult to operate and has great risks. Summary of the invention

[0012] In order to overcome the shortcomings of the prior art, the embodiment of the present invention provides a method for disassembling and assembling a HGC hydraulic cylinder of a wide and thick plate full hydraulic multi-roller warm straightening machine, the purpose of which is to:

[0013] On the basis of ensuring safety, the disassembly and assembly of the HGC hydraulic cylinder of the wide and thick plate full hydraulic multi-roller warm straightening machine can be completed quickly and efficiently, avoiding the crooked pulling and slanting lifting during traditional disassembly and assembly operations, reducing the risks of edge operations for operators and mechanical damage, and ensuring the safety of employees' operations.

[0014] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0015] A method for disassembling and assembling a HGC hydraulic cylinder of a wide and thick plate fully hydraulic multi-roller warm straightening machine;

[0016] The wide and thick plate fully hydraulic multi-roller warm straightening machine is used to eliminate the wide and thick steel plate defects such as warping or wave bending caused by uneven deformation due to uneven temperature after the wide and thick steel plate passes through the rolling mill or rapid cooling, including:

[0017] Two upper beams set up side by side and a pressing frame installed at the bottom of the upper beams, as well as a booster cylinder, a valve table, an HGC hydraulic cylinder and an operating platform, wherein:

[0018] The boost cylinder and the valve station for controlling the HGC hydraulic cylinder are installed side by side on the upper part of the back side of the two upper cross beams;

[0019] The HGC hydraulic cylinder is arranged below the booster cylinder and the valve table, and the HGC hydraulic cylinder is connected to the upper crossbeam through a seating seat at the bottom thereof, the piston rod of the HGC hydraulic cylinder is connected to the pressing frame, and the HGC hydraulic cylinder is also connected to the valve table through a hydraulic pipeline, and is connected to the valve table and a displacement sensor installed at the bottom of the HGC hydraulic cylinder for measuring the movement of the piston rod of the HGC hydraulic cylinder through an electrical line;

[0020] The operating platform is arranged on the periphery of the upper crossbeam and between the upper crossbeam and the pressing frame;

[0021] It is characterized in that the disassembly and assembly method of the HGC hydraulic cylinder of the wide and thick plate full hydraulic multi-roller warm straightening machine includes a disassembly method of the HGC hydraulic cylinder and an installation method of the HGC hydraulic cylinder, wherein:

[0022] The disassembly method of the HGC hydraulic cylinder includes:

[0023] S1) The steps for releasing the peripheral connection parts of the HGC hydraulic cylinder include:

[0024] S11) lowering the pressing frame to the lowest position, manually removing the compression ring bolts connecting the piston rod of the HGC hydraulic cylinder to be removed and the pressing frame, removing the clamping ring, and then manually controlling the operation in the operation room to separately retract the piston rod of the HGC hydraulic cylinder and the piston rod of the booster cylinder;

[0025] S12) using a pressure plate and bolts to fix the piston rod of the HGC hydraulic cylinder and the piston rod of the booster cylinder respectively to prevent the piston rod of the HGC hydraulic cylinder and the piston rod of the booster cylinder from sliding down after the oil pipe is removed;

[0026] S13) shutting down the hydraulic operating system of the wide and thick plate full hydraulic multi-roller warm straightening machine and releasing the pressure, then locking it with a sign and prohibiting starting;

[0027] S14) removing the electrical circuits connecting the HGC hydraulic cylinder with the valve station and the displacement sensor, and removing the hydraulic pipelines connected to the HGC hydraulic cylinder and marking them and wrapping the oil ports, so that the HGC hydraulic cylinder is free;

[0028] S2) The steps for removing the valve table and / or booster cylinder valve table include:

[0029] S21) removing the hydraulic pipelines connected to the valve station and the booster cylinder, and sealing the oil ports of the valve station and the booster cylinder;

[0030] S22) fastening the lifting lugs, shackles and wire ropes around the valve platform and the booster cylinder, and adjusting the level with a hoist;

[0031] S23) slowly lifting and transferring the valve platform and / or the booster cylinder from their installation positions by means of the steel wire rope using a crane to avoid collision of the valve block of the valve platform, and then slowly placing the valve platform and / or the booster cylinder on a sleeper pad pre-placed on the ground;

[0032] S3) The installation steps of the slide frame include:

[0033] S31) connecting two steel sections with slide grooves to four positioning holes of the upper crossbeam corresponding to the positions of the HGC hydraulic cylinders by bolt connection to form a slide groove frame, and making most of the slide groove frame located above the operating platform;

[0034] S32) connecting and fixing the tails of the two steel sections located on the operating platform with a connecting plate to form the tail of the chute frame, so as to prevent the tail of the chute frame from opening due to force when the HGC hydraulic cylinder moves into the chute frame;

[0035] S33) placing two jacks at the tail of the chute frame as support after the HGC hydraulic cylinder is moved to the tail of the chute frame, and applying lubricating oil in the chute of the chute frame;

[0036] S4) The removal and disassembly steps of the HGC hydraulic cylinder include:

[0037] S41) removing the bolts connecting the HGC hydraulic cylinder and the upper crossbeam, so that the seat of the HGC hydraulic cylinder is inserted into the slide groove of the slide groove frame;

[0038] S42) removing the operating platform table and its supporting beams located below the chute frame, and removing all obstructions that prevent the HGC hydraulic cylinder from moving out of its seated position and entering the outside of the chute frame;

[0039] S43) tying a rope on the cylinder body of the HGC hydraulic cylinder and connecting a power-assisting hoist, pulling the rope and using the power of the hoist to make the HGC hydraulic cylinder slide from its position through the chute frame to the tail of the chute frame;

[0040] S44) fastening the lifting lug, shackle and wire rope to the mounting base of the HGC hydraulic cylinder, slowly lifting and transferring the HGC hydraulic cylinder with the wire rope fastened from the chute frame by a crane, and avoiding collision, and then slowly placing the HGC hydraulic cylinder on the sleeper pad pre-placed on the ground, thus completing the disassembly of the HGC hydraulic cylinder;

[0041] The installation method of the HGC hydraulic cylinder includes:

[0042] The installation of the HGC hydraulic cylinder can be completed by performing the operations in the reverse process of steps S1) to S4), including:

[0043] s1) Steps for moving and installing the HGC hydraulic cylinder;

[0044] s2) Disassembly steps of the slide frame;

[0045] s3) Installation steps of valve table and / or booster cylinder valve table;

[0046] s4) Steps for connecting the peripheral connection parts of the HGC hydraulic cylinder.

[0047] Furthermore, the specification of the jack is 10 tons.

[0048] Furthermore, the specification of the gourd is 1 ton.

[0049] Compared with the prior art, the embodiments of the present invention have the following beneficial effects and significant improvements:

[0050] 1) The method for disassembling and assembling the HGC hydraulic cylinder of the wide and thick plate fully hydraulic multi-roller warm straightening machine provided in the embodiment of the present invention comprises the following steps: installing two groups of beams to form a slide frame by bolting on four positioning holes of the upper beam corresponding to the position of the HGC hydraulic cylinder, and making the outer side of the slide frame located above the operating platform; after removing the operating platform table and its supporting beams located at the bottom of the outer side of the slide frame, removing all obstructions that prevent the HGC hydraulic cylinder from moving out of its positioning position and entering the outer side of the slide frame, and releasing the connecting parts around the HGC hydraulic cylinder, the HGC hydraulic cylinder can be translated from the lower part of the upper beam in its position to the position of the operating platform, and then The crane is lifted vertically, moved out, and finally placed on the sleeper pad on the ground to complete the disassembly of the HGC hydraulic cylinder. When reinstalling, just follow the reverse order of disassembly, that is, first lift the HGC hydraulic cylinder vertically from the ground, then move it horizontally to the top of the slide frame on the operating platform, lower the HGC hydraulic cylinder to the slide frame, push the HGC hydraulic cylinder at the lower part of the upper beam into place, and then perform other installation operations to complete the installation of the HGC hydraulic cylinder. During the whole process, there is no tilting or slanting of the HGC hydraulic cylinder, and the operator does not need to compete with the HGC hydraulic cylinder for the limited operating space on the operating platform, which facilitates the operation and ensures the safety of personnel and equipment.

[0051] 2) The disassembly and assembly method of the HGC hydraulic cylinder of the wide and thick plate full-hydraulic multi-roller warm straightening machine provided in the embodiment of the present invention is specific, detailed and ingenious. It not only fully considers the safety, but also has strong versatility and operability. It not only avoids the tilting and slanting of the HGC hydraulic cylinder, a major component, and ensures safety, but also avoids the large-scale disassembly and assembly method such as removing the upper crossbeam, saves disassembly and assembly ring connections, improves work efficiency and work quality, and provides an inspiring and guiding method for the disassembly and assembly of similar equipment, which is of great promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention.

[0053] Obviously:

[0054] The drawings described below are only drawings of some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, but these other drawings also belong to the drawings required for use in the embodiments of the present invention.

[0055] Figure 1A schematic diagram of the structure of a full hydraulic multi-roller warm straightening machine for thick and wide plates in a method for disassembling and assembling a hydraulic cylinder of the HGC hydraulic straightening machine for thick and wide plates provided by an embodiment of the present invention;

[0056] Figure 2 A schematic block diagram of a method for disassembling and assembling a HGC hydraulic cylinder of a wide and thick plate fully hydraulic multi-roller warm straightening machine provided by an embodiment of the present invention;

[0057] Figure 3 A schematic diagram of the three-dimensional structure of a slide frame in a method for disassembling and assembling a HGC hydraulic cylinder of a full hydraulic multi-roller warm straightening machine for wide and thick plates provided in an embodiment of the present invention.

[0058] In the figure:

[0059] 10-upper beam, 20-pressing frame, 30-boosting cylinder, 40-valve table, 50-HGC hydraulic cylinder, 60-operating platform;

[0060] 70-slide frame, 71-steel, 72-connecting plate. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution, beneficial effects and significant progress of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the drawings provided in the embodiments of the present invention. Obviously, all the described embodiments are only partial embodiments of the present invention, rather than all embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0062] It should be noted that:

[0063] The terms "first", "second", etc. in the specification and claims of the present invention and the drawings of the embodiments of the present invention are only used to distinguish different objects, rather than to describe a specific order. In addition, the term "comprising" and any variation thereof 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 limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0064] It should be understood that in the description of the embodiments of the present invention, some indicative orientation or position words used are only based on the orientation or position relationship shown in the drawings of the embodiments of the present invention, and are for the convenience of describing the embodiments of the present invention and simplifying the explanation, rather than indicating or implying the specific orientation, specific orientation structure and operation that the device or element described must have. Therefore, it should not be understood as a limitation of the present invention.

[0065] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "connection" and "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a movable connection, or an integrated 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 limited.

[0066] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] It should also be noted that:

[0068] The following specific embodiments may be combined with each other, and the same or similar concepts or processes therein may not be described in detail in some embodiments.

[0069] The technical solution of the present invention is described in detail below with specific embodiments.

[0070] Example

[0071] This embodiment provides a method for disassembling and assembling a HGC hydraulic cylinder of a full hydraulic multi-roller warm straightening machine for wide and thick plates.

[0072] like Figure 1 A method for disassembling and assembling a hydraulic cylinder of a wide and thick plate full hydraulic multi-roller warm straightening machine HGC provided by an embodiment of the present invention is shown in a structural schematic diagram of the wide and thick plate full hydraulic multi-roller warm straightening machine:

[0073] In this embodiment, the thick and wide plate fully hydraulic multi-roller warm straightening machine is used to eliminate the defects of thick and wide steel plates such as warping or wave bending caused by uneven deformation due to uneven temperature after the thick and wide steel plates pass through the rolling mill or rapid cooling, including:

[0074] Two upper beams 10 set up side by side, a pressing frame 20 installed at the bottom of the upper beam 10, a booster cylinder 30, a valve station 40, an HGC hydraulic cylinder 50 and an operating platform 60, wherein:

[0075] The boost cylinder 30 and the valve table 40 for controlling the HGC hydraulic cylinder 50 are installed side by side on the upper part of the back side of the two upper cross beams 10;

[0076] The HGC hydraulic cylinder 50 is disposed below the booster cylinder 30 and the valve table 40, and the HGC hydraulic cylinder 50 is connected to the upper crossbeam 10 through a seating seat (not shown) at the bottom thereof, and a piston rod of the HGC hydraulic cylinder 50 is connected to the pressing frame 20;

[0077] The HGC hydraulic cylinder 50 is also connected to the valve station 40 through a hydraulic pipeline, and is connected to the valve station 40 and a displacement sensor (not shown in the figure) installed at the bottom of the HGC hydraulic cylinder 50 for measuring the movement of the piston rod of the HGC hydraulic cylinder 50 through an electrical line;

[0078] The operating platform 60 is disposed on the outer periphery of the upper beam 10 and is located between the upper beam 10 and the hold-down frame 20 .

[0079] like Figure 2 A schematic block diagram of a method for disassembling and assembling a HGC hydraulic cylinder of a wide and thick plate fully hydraulic multi-roller warm straightening machine provided by an embodiment of the present invention, Figure 3 The three-dimensional structural diagram of the slide frame in the disassembly and assembly method of the HGC hydraulic cylinder of a wide and thick plate full hydraulic multi-roller warm straightening machine provided by the embodiment of the present invention is shown as follows:

[0080] The disassembly and assembly method of the HGC hydraulic cylinder of the wide and thick plate full hydraulic multi-roller warm straightening machine includes the disassembly method of the HGC hydraulic cylinder and the installation method of the HGC hydraulic cylinder, among which:

[0081] The disassembly method of HGC hydraulic cylinder includes:

[0082] S1) The steps for releasing the peripheral connection parts of the HGC hydraulic cylinder include:

[0083] S11) lowering the pressing frame to the lowest position, manually removing the compression ring bolt (not shown in the figure) connecting the piston rod of the HGC hydraulic cylinder to be removed and the pressing frame, removing the clamping ring (not shown in the figure), and then manually controlling the operation through the operating room (not shown in the figure) to separately retract the piston rod of the HGC hydraulic cylinder and the piston rod of the booster cylinder;

[0084] S12) using a pressure plate and bolts to fix the piston rod of the HGC hydraulic cylinder and the piston rod of the booster cylinder respectively to prevent the piston rod of the HGC hydraulic cylinder and the piston rod of the booster cylinder from sliding down after the oil pipe is removed;

[0085] S13) Turn off the hydraulic operating system of the wide and thick plate full hydraulic multi-roller warm straightening machine and release the pressure, then put on a sign and lock it to prohibit starting;

[0086] S14) removing the electrical circuits connecting the HGC hydraulic cylinder with the valve table and the displacement sensor, and removing the hydraulic pipelines connected to the HGC hydraulic cylinder and marking them and wrapping the oil ports, so that the HGC hydraulic cylinder is free;

[0087] S2) The steps for removing the valve table and / or booster cylinder valve table include:

[0088] S21) Remove the hydraulic pipelines connected to the valve table and the booster cylinder, and pack the oil ports of the valve table and the booster cylinder;

[0089] S22) Fasten the lifting lugs, shackles and wire ropes around the valve table and booster cylinder, and adjust the level with a hoist;

[0090] S23) slowly lifting and transferring the valve table and / or booster cylinder from its installation position by a crane through a steel wire rope to avoid collision of the valve block of the valve table, and then slowly placing the valve table and / or booster cylinder on the sleeper pads pre-placed on the ground;

[0091] S3) The installation steps of the slide frame include:

[0092] S31) two steel sections 71 with slide grooves are respectively connected to four positioning holes of the upper crossbeam corresponding to the positions of the HGC hydraulic cylinders by bolt connection to form a slide groove frame 70, and most of the slide groove frame 70 is located above the operating platform;

[0093] S32) The tails of the two steel sections 71 located on the operating platform are connected and fixed with a connecting plate 72 to form the tail of the chute frame 70, so as to prevent the tail of the chute frame 70 from opening due to force when the HGC hydraulic cylinder moves into the chute frame 70;

[0094] S33) placing two jacks (not shown) at the tail of the chute frame 70 as support after the HGC hydraulic cylinder moves to the tail of the chute frame 70, and applying lubricating oil in the chute of the chute frame 70;

[0095] S4) The removal and disassembly steps of the HGC hydraulic cylinder include:

[0096] S41) removing the bolts connecting the HGC hydraulic cylinder and the upper crossbeam, so that the seat of the HGC hydraulic cylinder is inserted into the slide groove of the slide groove frame;

[0097] S42) dismantle the operating platform table and its supporting beams located below the chute frame, and remove all obstructions that prevent the HGC hydraulic cylinder from moving out of its seated position and into the rear of the chute frame;

[0098] S43) tying a rope on the cylinder body of the HGC hydraulic cylinder and connecting a power-assisted hoist, pulling the rope and using the power of the hoist to slide the HGC hydraulic cylinder from its position through the chute frame to the tail of the chute frame;

[0099] S44) Fasten the lifting lug, shackle and wire rope on the mounting base of the HGC hydraulic cylinder, slowly lift and transfer the HGC hydraulic cylinder with the wire rope fastened from the slide frame by a crane, and avoid collision, then slowly place the HGC hydraulic cylinder on the sleeper pad pre-placed on the ground, thus completing the disassembly of the HGC hydraulic cylinder;

[0100] The installation methods of HGC hydraulic cylinders include:

[0101] s1) Steps for moving and installing the HGC hydraulic cylinder;

[0102] s2) Disassembly steps of the slide frame;

[0103] s3) Installation steps of valve table and / or booster cylinder valve table;

[0104] s4) Steps for connecting the peripheral connection parts of the HGC hydraulic cylinder.

[0105] The installation method of the above-mentioned HGC hydraulic cylinder is the reverse process of the disassembly method of the HGC hydraulic cylinder, that is: first lift the HGC hydraulic cylinder vertically from the ground, then move it horizontally to the top of the slide frame on the operating platform, lower the HGC hydraulic cylinder onto the slide frame, push the HGC hydraulic cylinder at the bottom of the upper beam into position, and then perform other installation operations.

[0106] During the above operation:

[0107] The jack may have a lifting specification of 10 tons, and the hoist may have a specification of 1 ton.

[0108] From the above description, we can see that:

[0109] First, the method for disassembling and assembling the HGC hydraulic cylinder of the wide and thick plate full hydraulic multi-roller warm straightening machine provided in this embodiment is to install two groups of beams to form a slide frame by bolt connection on the four positioning holes of the upper beam corresponding to the position of the HGC hydraulic cylinder, and make the outer side of the slide frame located on the operating platform. After removing the operating platform table and its supporting beams located at the bottom of the outer side of the slide frame, removing all obstructions that prevent the HGC hydraulic cylinder from moving out of its positioning position and entering the outer side of the slide frame, and releasing the connecting parts around the HGC hydraulic cylinder, the HGC hydraulic cylinder can be horizontally moved from the lower part of the upper beam in its position to the position of the operating platform, and then lifted and moved out vertically by a crane, and finally placed on the sleeper pad on the ground, to complete the disassembly of the HGC hydraulic cylinder;

[0110] When reinstalling the HGC hydraulic cylinder, you only need to follow the reverse order of disassembly, that is, first lift the HGC hydraulic cylinder vertically from the ground, then move it horizontally to the top of the slide frame on the operating platform, lower the HGC hydraulic cylinder onto the slide frame, push the HGC hydraulic cylinder at the lower part of the upper beam into place, and then perform other installation operations to complete the installation of the HGC hydraulic cylinder. During the whole process, there is no tilting or lifting of the HGC hydraulic cylinder, and the operator does not need to compete with the HGC hydraulic cylinder for the limited operating space on the operating platform, which facilitates the operation and ensures the safety of personnel and equipment.

[0111] Secondly, the disassembly and assembly method of the HGC hydraulic cylinder of the wide and thick plate full-hydraulic multi-roller warm straightening machine provided in this embodiment is specific, detailed and ingenious. It not only fully considers safety, but also has strong versatility and operability. It not only avoids the tilting and slanting of the HGC hydraulic cylinder, a major component, and ensures safety, but also avoids the large-scale disassembly and assembly method of removing the upper crossbeam, saves disassembly and assembly ring connections, improves work efficiency and work quality, and provides an inspiring and guiding method for the disassembly and assembly of similar equipment, which is of great promotion and application value.

[0112] In the description of the above manual:

[0113] The terms "this embodiment", "an embodiment of the present invention", "as shown in", "further", etc., mean that the specific features, structures, materials or characteristics described in the embodiment or example are included in at least one embodiment or example of the present invention;

[0114] In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example, and the specific features, structures, materials or characteristics described may be combined or combined in a suitable manner in any one or more embodiments or examples; in addition, a person skilled in the art may combine or combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without causing any contradiction.

[0115] Finally, it should be noted that:

[0116] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. The non-essential improvements, adjustments or replacements made by those skilled in the art based on the contents of this specification are all within the scope of protection required by the present invention.

Claims

1. A method for disassembling and assembling the HGC hydraulic cylinder of a wide and thick plate fully hydraulic multi-roller warm straightening machine; The wide and thick plate fully hydraulic multi-roller warm straightening machine is used to eliminate the wide and thick steel plate bending or wave bending defects caused by uneven deformation due to uneven temperature after the wide and thick steel plate passes through the rolling mill or rapid cooling, and includes two upper beams set up side by side and a pressing frame installed at the bottom of the upper beam, as well as a booster cylinder, a valve table, an HGC hydraulic cylinder and an operating platform, wherein: The boost cylinder and the valve station for controlling the HGC hydraulic cylinder are installed side by side on the upper part of the back side of the two upper cross beams; The HGC hydraulic cylinder is arranged below the booster cylinder and the valve table, and the HGC hydraulic cylinder is connected to the upper crossbeam through a seating seat at the bottom thereof, the piston rod of the HGC hydraulic cylinder is connected to the pressing frame, and the HGC hydraulic cylinder is also connected to the valve table through a hydraulic pipeline, and is connected to the valve table and a displacement sensor installed at the bottom of the HGC hydraulic cylinder for measuring the movement of the piston rod of the HGC hydraulic cylinder through an electrical line; The operating platform is arranged on the periphery of the upper crossbeam and between the upper crossbeam and the pressing frame; It is characterized in that the disassembly and assembly method of the HGC hydraulic cylinder of the wide and thick plate full hydraulic multi-roller warm straightening machine includes a disassembly method of the HGC hydraulic cylinder and an installation method of the HGC hydraulic cylinder, wherein: The disassembly method of the HGC hydraulic cylinder includes: S1) The steps for releasing the peripheral connection parts of the HGC hydraulic cylinder include: S11) lowering the pressing frame to the lowest position, manually removing the compression ring bolts connecting the piston rod of the HGC hydraulic cylinder to be removed and the pressing frame, removing the clamping ring, and then manually controlling the operation in the operation room to separately retract the piston rod of the HGC hydraulic cylinder and the piston rod of the booster cylinder; S12) using a pressure plate and bolts to fix the piston rod of the HGC hydraulic cylinder and the piston rod of the booster cylinder respectively, so as to prevent the piston rod of the HGC hydraulic cylinder and the piston rod of the booster cylinder from sliding down after the oil pipe is removed; S13) shutting down the hydraulic operating system of the wide and thick plate full hydraulic multi-roller warm straightening machine and releasing the pressure, then locking it with a tag and prohibiting its startup; S14) removing the electrical circuits connecting the HGC hydraulic cylinder with the valve table and the displacement sensor, and removing the hydraulic pipelines connected to the HGC hydraulic cylinder and marking them and wrapping the oil ports, so that the HGC hydraulic cylinder is free; S2) The steps for removing the valve table and / or booster cylinder valve table include: S21) removing the hydraulic pipelines connected to the valve station and the booster cylinder, and sealing the oil ports of the valve station and the booster cylinder; S22) Fasten the lifting lugs, shackles and wire ropes around the valve table and the booster cylinder, and adjust the level with a hoist; S23) slowly lifting and transferring the valve table and / or the booster cylinder from their installation positions by means of the crane via the steel wire rope to avoid collision of the valve block of the valve table, and then slowly placing the valve table and / or the booster cylinder on a sleeper pad pre-placed on the ground; S3) The installation steps of the slide frame include: S31) connecting a slide frame consisting of two steel sections with slide grooves to four positioning holes of the upper crossbeam corresponding to the positions of the HGC hydraulic cylinders by bolt connection, respectively, and making most of the slide frame located above the operating platform; S32) connecting and fixing the tails of the two steel sections located on the operating platform with a connecting plate to form the tail of the slide frame, so as to prevent the tail of the slide frame from opening due to force when the HGC hydraulic cylinder moves into the slide frame; S33) placing two jacks at the tail of the chute frame as support after the HGC hydraulic cylinder is moved to the tail of the chute frame, and applying lubricating oil in the chute of the chute frame; S4) The removal and disassembly steps of the HGC hydraulic cylinder include: S41) removing the bolts connecting the HGC hydraulic cylinder and the upper crossbeam, so that the seat of the HGC hydraulic cylinder is inserted into the slide groove of the slide groove frame; S42) removing the operating platform table and its supporting beams located below the chute frame, and removing all obstructions that prevent the HGC hydraulic cylinder from moving out of its seated position and entering the rear of the chute frame; S43) tying a rope on the cylinder body of the HGC hydraulic cylinder and connecting a power-assisting hoist, pulling the rope and using the power of the power-assisting hoist to make the HGC hydraulic cylinder slide from its position through the chute frame to the tail of the chute frame; S44) fasten the lifting lug, shackle and wire rope on the mounting base of the HGC hydraulic cylinder, slowly lift and transfer the HGC hydraulic cylinder with the wire rope fastened from the slide frame by a crane, and avoid collision, then slowly place the HGC hydraulic cylinder on the sleeper pad pre-placed on the ground, thus completing the disassembly of the HGC hydraulic cylinder; The installation method of the HGC hydraulic cylinder includes: s1) Steps for moving in and installing the HGC hydraulic cylinder; s2) Disassembly steps of the slide frame; s3) Installation steps of valve table and / or booster cylinder valve table; s4) Steps for connecting the peripheral connection parts of the HGC hydraulic cylinder.

2. The method for disassembling and assembling the HGC hydraulic cylinder of the wide and thick plate full hydraulic multi-roller warm straightening machine according to claim 1, characterized in that: The specification of the jack is 10 tons.

3. The method for disassembling and assembling the HGC hydraulic cylinder of the wide and thick plate full hydraulic multi-roller warm straightening machine according to claim 1, characterized in that: The specification of the gourd is 1 ton.

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