An auxiliary installation device and usage method for a universal shaft of a vertical rolling mill

Abstract

The present invention provides an auxiliary installation device for a universal shaft of a vertical rolling mill, comprising a movable base, at least one pair of guide beams, and an openable clamping member; the guide beam comprises a horizontal beam and a vertical beam connected to each other, and a guide groove is provided on one side of the horizontal beam and the vertical beam; the two ends of the clamping member are respectively moved horizontally on the horizontal beam and longitudinally on the vertical beam by a lifting mechanism, so as to change the position of the universal shaft from horizontal to vertical. The present invention also provides a method for using the auxiliary installation device for a universal shaft of a vertical rolling mill. The present invention converts the universal shaft from a horizontal position to a vertical position by sliding the clamping member on the guide beam, with one end serving as the lifting end vertically rising and the other end sliding toward the lifting end, thereby realizing the horizontal-vertical state switching of the universal shaft. In terms of operation, large auxiliary devices such as a crane and a suspension device are omitted, thereby reducing the difficulty of operation, simplifying the operation steps, and improving the efficiency of shaft replacement.

Description

Technical Field

[0001] The invention belongs to the technical field of vertical rolling mill shaft replacement, and particularly relates to a vertical rolling mill universal shaft auxiliary installation device and a use method. Background Art

[0002] Multiple vertical rolling mills are used on the rolling production line for bars and wire rods. The motor of the vertical rolling mill drives the rollers to rotate through the universal joint for rolling. On the vertical rolling mill, the motor, universal joint and rollers are arranged in sequence from top to bottom. Usually, the universal joint is installed by crane hoisting, which is difficult and requires the assistance of a hoist. However, in actual hoist-assisted hoisting, it is often difficult to find the correct hanging point, the operation is cumbersome, and there are safety hazards during the hoisting process.

[0003] There is a lifting device that optimizes the auxiliary installation structure of the universal joint. The Chinese invention patent application with publication number CN105776044B discloses a special lifting device for disassembling and assembling the universal joint on a vertical rolling mill and its use method. The two lifting ears on the lifting beam are lifted by the hook on the crane to match the gravity difference between the counterweight at both ends of the lifting beam and the universal joint, so as to achieve the effect of lifting the universal joint in a balanced manner; the Chinese invention patent with publication number CN111634799B discloses a lifting tool and lifting method for the universal joint of a vertical rolling mill. A main boom and a secondary boom are set, and a universal joint is fixed at one end of the main boom and the secondary boom. The crossbeam of the secondary boom is slidably connected to the middle of the main boom, and the vertical rod of the secondary boom limits the height of the other end of the main boom to achieve balanced and stable lifting. The above two inventions both use the principle of a balance to solve the problem that the crane cannot be lifted into place, but the crane needs to be used for lifting during the installation process. The driver cannot communicate well with the installer, the driving takes a long time, the operation is cumbersome, and the universal joint has no restraint mechanism in the suspended state, which is difficult to install and has great safety hazards.

[0004] In addition to lifting, rod-like structures or bars can also be replaced by flipping, and the horizontal and vertical states can be switched during the replacement process. However, when flipping to replace the universal joint, a larger base is required to provide support, and the structure is fixed and difficult to move, and it is also easy to interfere with the equipment structure at the installation location. The existing device considering the horizontal and vertical state during the replacement of rod-like structures, the Chinese invention patent with publication number CN114130830A provides a roll changing device for a horizontal and vertical rolling mill, which combines the moving tracks of the vertical roll and the transverse roll into one, and sets a hydraulic cylinder at one end of the track to connect the vertical roll and the transverse roll respectively, so as to cooperate with the subsequent workshop overhead crane adjustment step. However, the structure involved in the device is relatively complex. Before the vertical roll is placed on the trolley, other devices are still required to assist it to transform from a horizontal state to a vertical state. There are still difficulties in operation, and the operation processes applied to the vertical roll and the transverse roll are different, and the operation is cumbersome.

[0005] In summary, there is an urgent need for a vertical rolling mill universal shaft auxiliary installation device and a method for use that can switch the universal shaft between horizontal and vertical states, is easy to operate, does not require a crane, occupies a small area, has a simple structure, and is stable and safe. Summary of the Invention

[0006] The purpose of the present invention is to address the shortcomings of the existing technology and provide a vertical rolling mill universal joint auxiliary installation device and a method for use, aiming to solve the safety problems existing in the existing vertical rolling mill lifting and shaft changing method, the cumbersome operation of the lifting method, the need for crane assistance, the large support base for the flipping shaft affecting the installation, and the inability of the existing horizontal and vertical roll changing device to switch the bars horizontally and vertically.

[0007] To solve the above technical problems, the present invention provides an auxiliary installation device for a universal shaft of a vertical rolling mill, comprising a movable base, at least one pair of guide beams, and an openable clamping member, wherein the pair of guide beams are symmetrically arranged on the top of the base, and the clamping member is slidably installed on the inner side of the pair of guide mechanisms;

[0008] The guide beam comprises a horizontal beam and a vertical beam connected to each other, and a guide groove is provided on one side of each of the horizontal beam and the vertical beam;

[0009] The clamping member slides along the guide groove through the outer sliding assembly, and the two ends of the clamping member move horizontally on the crossbeam and longitudinally on the vertical beam respectively through the lifting mechanism to realize the position change of the universal joint from horizontal to vertical.

[0010] In some embodiments, a top surface area of the base between a pair of guide beams is provided with a movable support seat with a top that can be raised and lowered, and a moving direction of the movable support seat is parallel to a length direction of the beam.

[0011] In some embodiments, the sliding assembly includes at least four pulleys, at least two pulleys arranged on the same side are connected to each other via a connecting member, and the connecting member is symmetrically arranged on the clamping member.

[0012] Furthermore, in some embodiments, the lifting mechanism is a winch, and a traction rope of the winch is fixedly connected to one end of the clamping member that moves longitudinally.

[0013] Furthermore, in some embodiments, the lifting mechanism is a pushing mechanism composed of multiple pushing cylinders, the output end of the pushing mechanism is connected to the end of the clamping member that moves laterally, and the pushing direction of the pushing mechanism is parallel to the length direction of the beam.

[0014] Furthermore, in some embodiments, the clamping member is a clamp, and the number of the clamps is at least two.

[0015] Furthermore, in some embodiments, a lifting mechanism is provided between the bottom plate of the base and the guide beam.

[0016] Furthermore, in some embodiments, a limiting member is provided in the guide groove, one side of the limiting member is slidably connected to the outer side of the pulley, and a spring is provided between the other side of the limiting member and one end of the guide groove.

[0017] The present invention also provides a method for using the vertical rolling mill universal shaft auxiliary installation device, comprising the following steps:

[0018] Install the universal joint onto the clamping piece, move the auxiliary installation device to the universal joint installation position corresponding to the vertical rolling mill to be installed, start the lifting mechanism, and make the two ends of the clamping piece slide along the guide grooves of the horizontal beam and vertical beam respectively to realize the switching between the horizontal and vertical states of the universal joint.

[0019] In some embodiments, the steps include:

[0020] S1. Move the universal joint back into the opened clamp, connect and lock it at the crossbeam area, and move the base to the installation position of the universal joint;

[0021] S2. After fixing the base, start the lifting mechanism and lift the longitudinally moving end of the clamping piece or push the transversely moving end of the clamping piece toward the vertical beam to convert the universal joint from a horizontal state to a vertical state. When one end of the universal joint is close to the reducer at the installation position, the installer will fine-tune the position of the universal joint to facilitate installation.

[0022] S3. After the universal joint is installed at the installation position, the clamping piece on the universal joint is opened, the supporting mechanism is removed, and the device is moved away from the installation position to complete the separation of the device and the universal joint.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The universal joint is fixed with a clamping piece, and a lifting mechanism is used as an external force application device for the clamping piece. The clamping piece slides on the guide beam, with one end serving as the lifting end and rising vertically, while the other end slides toward the lifting end. This allows the universal joint to be switched from a horizontal position to a vertical position, thus omitting large auxiliary devices such as a crane and a suspension device. This reduces the difficulty of operation, simplifies the operating steps, and improves the efficiency of shaft replacement.

[0025] 2. By setting a pair of L-shaped guide beams on the movable base and using the movement of the clamping parts on the guide beams to realize the horizontal and vertical switching of the universal joint, the overall structure is simplified, the floor space is reduced, and it is more conducive to the shaft changing operation with the vertical rolling mill. At the same time, the operator can provide auxiliary support or limit the universal joint according to the actual interference between the device and the vertical rolling mill, which makes the operation more flexible and safer, and there is no safety hazard of suspension.

[0026] 3. The manufacturing cost of the device is reduced through simplified structural design and operating steps. At the same time, because the moving trajectory of the universal joint in the device is fixed, the modification difficulty and cost are smaller. It is only necessary to ensure that the universal joint is always switched horizontally and vertically on the same vertical plane. It is more practical and does not require the cooperation of multiple people during operation, reducing labor costs.

[0027] 4. By combining the clamping parts and the sliding assembly with the mobile support seat, the device provides support force to the universal joint from the bottom. Compared with the crane hoisting method, it reduces the operation cost and labor cost. At the same time, the universal joint is more stable during the movement before installation. It is also more convenient for the operator to add auxiliary equipment to help the universal joint maintain its balance during movement, thereby improving the operational controllability of the universal joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the auxiliary installation device for the universal joint shaft of a vertical rolling mill provided in an embodiment of the present invention;

[0029] Figure 2 Schematic diagram of the structure of the auxiliary installation device for the cardan shaft of a vertical rolling mill in the disengaged state of the cardan shaft in step S3 provided in an embodiment of the present invention;

[0030] Figure 3 A schematic structural diagram of a clamping member, a connecting member, and a sliding assembly provided in an embodiment of the present invention;

[0031] Figure 4 This is a schematic structural diagram of a clamp and a sliding assembly provided in an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the connection structure of the horizontal beam and the vertical beam provided in an embodiment of the present invention;

[0033] Figure 6 Schematic diagram of the winch roller structure provided in an embodiment of the present invention;

[0034] Figure 7 Schematic diagram of the overall structure of the auxiliary installation device for the cardan shaft of a vertical rolling mill before the cardan shaft is disengaged in step S3 provided in an embodiment of the present invention;

[0035] Figure 8Schematic diagram of the clamp structure in the open state provided in an embodiment of the present invention.

[0036] Among them, 1. Base; 2. Crossbeam; 3. Vertical beam; 301. Roller; 4. Clamping piece; 401. Hoop; 402. Connecting piece; 403. Sliding assembly; 4011. Fixed hoop; 4012. Movable hoop; 4013. Locking piece; 4031. Pulley; 4032. Connecting rod; 5. Motor; 6. Universal joint; 7. Traction rope. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0039] The present invention will be further described below with reference to specific examples, but they are not intended to limit the present invention.

[0040] An auxiliary installation device for a cardan shaft of a vertical rolling mill comprises a movable base 1, at least a pair of guide beams, and an openable clamping member 4. The pair of guide beams are symmetrically arranged on the top of the base 1, and the clamping member 4 is slidably mounted on the inner side of the pair of guide mechanisms.

[0041] The guide beam includes a horizontal beam 2 and a vertical beam 3 connected to each other, and a guide groove is provided on one side of the horizontal beam 2 and the vertical beam 3;

[0042] The clamping member 4 slides along the guide groove through the outer sliding assembly 403, and the two ends of the clamping member 4 move horizontally on the crossbeam 2 and longitudinally on the vertical beam 3 through the lifting mechanism to achieve the position change of the universal joint 6 from horizontal to vertical.

[0043] like Figures 1 to 7As shown, the universal joint 6 is fixed by the clamping member 4, and the end of the clamping member 4 close to the vertical beam 3 is called the moving end, and the end of the clamping member 4 away from the vertical beam 3 is called the lifting end. The lifting end slides in the vertical beam 3, and the moving end slides on the cross beam 2. At this time, the universal joint 6, the clamping member 4 and the sliding assembly 403 are regarded as a moving whole. The lifting mechanism is used to apply force to this moving whole, and the sliding assembly 403 is used to slide in the guide groove so that the two ends of the clamping member 4 can move along the guide grooves on the cross beam 2 and the vertical beam respectively, and the moving end moves toward the vertical beam 3, and the lifting end is raised on the vertical beam 3, thereby realizing the transformation of the universal joint 6 from a horizontal placement state to a vertical placement state before installation. Compared with the traditional universal joint 6 movement method, that is, crane hoisting, no large equipment such as crane and suspension beam is required, which reduces the dependence on the cooperation of multiple people during the movement process and reduces the difficulty of operation to a certain extent.

[0044] The entire device is composed of a movable base 1, at least one pair of guide beams, an openable clamping member 4, a sliding assembly 403 and a lifting mechanism, which simplifies the overall structure of the device, reduces manufacturing costs, and reduces the floor space. When the device is moved to the installation position of the vertical rolling mill, the structural interference between the device and the vertical rolling mill is minimized, facilitating the subsequent installation operation of the universal joint 6.

[0045] In some preferred embodiments, a movable support seat with a top that can be raised and lowered is provided in the top surface area of the base 1 located between a pair of guide beams, which applies a supporting force upward at the bottom of the clamping member 4, thereby reducing the pressure on the sliding component 403 caused by the total mass of the clamping member 4 and the universal joint 6, and assisting the sliding component 403 to slide more smoothly in the guide groove, thereby improving the smoothness of the movement of the clamping member 4 on the guide beam.

[0046] In some specific extended embodiments, the moving direction of the movable support seat is parallel to the length direction of the beam 2, so that the movable support seat can continuously support the universal joint 6 to assist the universal joint 6 in completing the horizontal and vertical state switching within the device.

[0047] In some preferred embodiments, the sliding assembly 403 includes at least four pulleys 4031, at least two pulleys 4031 arranged on the same side are connected to each other through a connecting member 402, and the connecting member 402 is symmetrically arranged on the clamping member 4, such as Figures 1 to 4 As shown, at least four pulleys 4031 are symmetrically arranged on both sides of the clamping member 4, at least one pulley 4031 is located in a horizontal beam 2, and at least one pulley 4031 is located in a vertical beam 3, and as shown Figure 5As shown, the pulley 4031 in the area near the moving end only moves on the horizontal beam 2, and the pulley 4031 in the area near the lifting end only moves on the vertical beam 3. In this way, the horizontal and vertical switching process of the universal joint 6 in which the lifting end continues to rise and the moving end continues to move toward the vertical beam 3 can be coordinated, thereby avoiding the pulley 4031 causing structural obstruction to the process. The connecting member 402 plays a role in supporting the sliding of the universal joint 6 on the guide beam to a certain extent. The connecting member 402 is required to have a certain strength, or a movable support seat is provided to reduce the supporting pressure of the universal joint 6's own mass on the connecting member 402, so as to realize the mobility of the universal joint 6 in the device.

[0048] In some specific extended embodiments, the lifting mechanism is a winch, the traction rope 7 of the winch is fixedly connected to the lifting end of the clamping member 4, the other end of the traction rope 7 extends upward through the roller 301 at the top of the vertical beam 3, and then connects to the winch downward. The winch is set on both sides of the two vertical beams 3, such as Figure 6 As shown, the winch lifts the lifting end of the clamping member 4 by winding the traction rope 7. The lifting and lowering of the lifting end drives the movement of the moving end. During the lifting process, the horizontal beam 2 and the vertical beam 3 respectively limit the moving trajectories of the moving end and the lifting end of the clamping member 4, so that the moving end always moves horizontally and the lifting end always moves longitudinally until the universal joint 6 switches to a horizontal state. The traction rope 7 can be fixed in the connection area between the sliding component 403 and the connecting rod 4032.

[0049] In some specific extended embodiments, the lifting mechanism is a gear set powered by the motor 5, and a transmission gear is fixedly sleeved on the outer side of the pulley 4031. The outer side of the transmission gear is transmission-connected to the input end of the gear set. The gear set can adopt a driving gear and a driven gear. One side of the driving gear passes through the bottom of the vertical beam 3 and is fixedly connected to the output shaft of the motor 5. The driven gear is arranged on the top of the vertical beam 3. The driving gear and the driven gear are connected by a closed chain transmission and are located at both ends of the vertical beam 3. The outer side of the transmission gear is meshed with the inner side of the chain. The driving gear and the driven gear are meshed with each other. The gears, closed chains and transmission gears are all located inside the guide grooves of the vertical beams 3. When in use, the motor 5 is started, the driving gear rotates to drive the closed chain to move, and the closed chain drives the driven gear to rotate. The chains on both sides of the transmission gear form opposite movement directions, so that the transmission gear drives the lifting end of the clamping part 4 to rise, and the lifting end drives the movement of the moving end. During the lifting process, the movement of the moving end and the lifting end of the clamping part 4 are respectively restricted by the horizontal beam 2 and the vertical beam 3, so that the moving end always moves horizontally and the lifting end always moves longitudinally until the universal joint 6 realizes the switching of the horizontal and vertical states.

[0050] In some specific extended embodiments, the lifting mechanism is a pushing mechanism composed of multiple pushing cylinders, the output end of the pushing mechanism is connected to the end of the clamping member 4 that moves laterally, and the pushing direction of the pushing mechanism is parallel to the length direction of the beam 2. When in use, the pushing cylinder is started to push one end of the universal shaft 6 or the moving end of the clamping member 4 toward the vertical beam 3. The movement of the moving end drives the movement of the lifting end in the vertical beam 3. The horizontal beam 2 and the vertical beam 3 serve as the moving limit structures of the moving end and the lifting end respectively. During the movement process, the moving end always moves laterally and the lifting end always moves longitudinally until the universal shaft 6 realizes the switching of the horizontal and vertical states. Among them, the pushing cylinder can also be replaced by a hydraulic cylinder.

[0051] In some specific extended embodiments, the device for switching the universal joint 6 from a horizontal state to an upright state by raising the lifting end and the device for switching the universal joint 6 from a horizontal state to an upright state by pushing the moving end can be freely combined and respectively arranged at both ends of the clamping member 4 to form a lifting mechanism, and simultaneously act on the universal joint 6 or the clamping member 4 to push the moving end and raise the lifting end to drive it to switch from a horizontal state to an upright state, such as combining a winch and a pushing cylinder, combining a winch and a hydraulic cylinder, combining an electric gear set and a pushing cylinder, combining an electric gear set and a hydraulic cylinder, etc., thereby reducing the power required for a single device to drive the universal joint 6 to switch from a horizontal state to an upright state, and avoiding the inability to perform the horizontal state switching process due to a single structure not being able to provide sufficient power.

[0052] In some specific extended embodiments, the clamping member 4 is a clamp 401, and the number of the clamp 401 is at least two, such as Figure 3 and Figure 4 As shown, the clamping member 4 is two clamps 401 that are locked and opened in both directions by a locking member 4013. The two-way opening method further compresses the operating space required for the device. The two clamps 401 are connected to each other through a connecting member 402 and connected to a sliding assembly 403. An anti-slip member is provided on the inner side of the clamp 401. The anti-slip member can be a rubber layer. The mobile whole composed of the clamp 401, the connecting member 402 and the sliding assembly 403 is suitable for a universal joint 6 with a smaller mass.

[0053] In some specific extended embodiments, the clamping member 4 is an openable hollow cylinder. During operation, the clamping member 4 is installed as close to the center of the universal joint 6 as possible. An elastic pressure member is provided on the inner side of the clamping member 4 to improve the clamping stability. Rubber with a certain thickness can be distributed in a ring shape or arc shape on the inner side of the clamping member 4, or an anti-slip pattern can be formed on the inner side to achieve a stable installation of the universal joint 6 inside the clamping member 4.

[0054] In some specific extended embodiments, a lifting mechanism is provided between the bottom plate of the base 1 and the guide beam, so that the bottom end height of the universal joint 6 in the device can be adjusted according to the actual installation position, thereby facilitating the installation of the universal joint 6 in a vertical state, and further facilitating the shaft changing operation of the vertical rolling mill.

[0055] In some specific extended embodiments, a limiting member is provided in the guide groove, one side of the limiting member is slidably connected to the outer side of the pulley 4031, and a spring is provided between the other side of the limiting member and one end of the guide groove, so that the pulley 4031 is subjected to the elastic force of the limiting member when sliding on the horizontal beam 2 or the vertical beam 3, and the direction of the elastic force is as much as possible toward the vertical beam 3. In this way, the two ends of the clamping member 4 are not only subjected to the force applied by the lifting mechanism when moving, but also to the elastic force of the spring, which can improve the speed of the horizontal and vertical switching of the universal joint 6 to a certain extent, and even reduce the total power consumption of the lifting mechanism.

[0056] The present invention also provides a method for using a vertical rolling mill universal shaft auxiliary installation device, comprising the following steps:

[0057] Install the universal joint 6 onto the clamping part 4, move the auxiliary installation device to the installation position of the universal joint 6 corresponding to the vertical rolling mill to be installed, start the lifting mechanism, and make the two ends of the clamping part 4 slide along the guide grooves of the horizontal beam 2 and the vertical beam 3 respectively to realize the switching of the universal joint 6 between the horizontal state and the vertical state.

[0058] Compared with the traditional method of crane hoisting, the method of use provided by the present invention is safer and the operation process is more controllable. In the process of crane hoisting the universal joint shaft 6, the quality of the universal joint shaft 6 itself has certain requirements and dependencies on the quality of the hoisting rope and large-scale mechanical equipment due to the hoisting method. Large-scale mechanical equipment includes cranes, large hoisting beams and hoisting tools, etc., and due to the cylindrical shape of the universal joint shaft 6, it is also necessary to pay attention to whether the universal joint shaft 6 can maintain continuous horizontal balance during movement during hoisting. If the universal joint shaft 6 is hoisted and moved in a vertical state, rapid movement will cause the universal joint shaft 6 to swing, posing a safety hazard to surrounding operators. At the same time, the lifting area of the universal joint shaft 6 is also very limited, and there is a risk of the universal joint shaft 6 being unhooked. The slow movable speed will slow down the efficiency of shaft changing. In addition, when hoisted in the air, it is difficult for the operator to provide auxiliary support to the universal joint shaft 6, and the controllability of the universal joint shaft 6 during operation is poor.

[0059] The moving method of the present invention is to move on the ground, which is more stable than the moving method of hoisting that is completely suspended in the air. It does not require large-scale mechanical equipment, and the requirement for cooperation of multiple people during operation is not high. It is only necessary to maintain the balance of the universal joint 6 itself, which greatly reduces the safety hazards of the operator. The support of the universal joint 6 by the present invention mainly comes from the base 1. If the base 1 does not support the universal joint 6 enough, the operator can freely add auxiliary support structures or equipment according to actual conditions to achieve stable movement of the universal joint 6. The universal joint 6 has a certain degree of operational controllability during the movement process, and it is also less difficult to add support points or effective areas from the bottom of the universal joint 6, which reduces the difficulty of operation. The method provided by the present invention is to achieve the horizontal and vertical state switching of the universal joint 6 by lifting one end, moving the other end, and limiting the movement trajectory of both ends. Under the condition of being able to flexibly increase the supporting force, the lifting force required during the movement is smaller than that of the hoisting method, which is more conducive to reducing equipment power consumption, further reducing movement costs, and improving shaft replacement efficiency.

[0060] In some embodiments, the steps include:

[0061] S1. Move the cardan shaft 6 upside down into the opened clamping piece 4, connect and lock it in the area of the crossbeam 2, and move the base 1 to the installation position of the cardan shaft 6;

[0062] S2. After fixing the base 1, start the lifting mechanism, lift the lifting end of the clamping member 4 or push the moving end of the clamping member 4 toward the vertical beam 3, and convert the universal joint 6 from a horizontal state to a vertical state. When one end of the universal joint 6 approaches the reducer at the installation position, the installer fine-tunes the position of the universal joint 6 to facilitate installation.

[0063] Before starting the lifting mechanism, the operator can operate the auxiliary equipment at the bottom, such as adjusting the top height of the movable support base so that its top end contacts the universal shaft 6 and provides support; operating the lifting mechanism so that the bottom end height of the universal shaft 6 is as close as possible to the bottom end height of the installation position, etc.

[0064] During the process of switching the universal joint 6 between the horizontal and vertical states, the operator can add limiting mechanisms on both sides of the universal joint 6 according to the actual interference between the device and the vertical rolling mill, so that the central axis of the universal joint 6 is always in the same vertical plane during the horizontal and vertical switching process. For example, a limiting mechanism includes a rotatable limiting hoop and a fixed seat located on one side of the limiting hoop. The limiting hoop and the fixed seat are connected by a retractable push rod. The outer side of one end of the push rod slides in the limiting groove in the fixed seat and can rotate to cooperate with the horizontal and vertical state switching process of the universal joint 6.

[0065] S3, such as Figure 7As shown, the clamping member 4 on the universal shaft 6 is opened, the universal shaft 6 is installed to the installation position, the supporting mechanism is removed, and the device is moved away from the installation position to complete the separation of the device and the universal shaft 6.

[0066] The above are only preferred embodiments of the present invention and do not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of the present invention specification should be included in the protection scope of the present invention.

Claims

1. A vertical rolling mill universal shaft auxiliary installation device, characterized in that: The invention comprises a movable base, at least one pair of guide beams and an openable clamping member, wherein the pair of guide beams are symmetrically arranged on the top of the base, and the clamping member is slidably mounted on the inner side of the pair of guide mechanisms; The guide beam comprises a horizontal beam and a vertical beam connected to each other, and a guide groove is provided on one side of each of the horizontal beam and the vertical beam; The clamping member slides along the guide groove through the outer sliding assembly, and the two ends of the clamping member move horizontally on the crossbeam and longitudinally on the vertical beam respectively through the lifting mechanism to achieve the position change of the universal joint from horizontal to vertical; A movable support seat with a top that can be raised and lowered is provided on the top surface area of the base between the pair of guide beams, and the moving direction of the movable support seat is parallel to the length direction of the beam.

2. The vertical rolling mill universal shaft auxiliary installation device according to claim 1, characterized in that: The sliding assembly includes at least four pulleys, at least two pulleys arranged on the same side are connected to each other through a connecting piece, and the connecting piece is symmetrically arranged on the clamping piece.

3. The vertical rolling mill universal shaft auxiliary installation device according to claim 1, characterized in that: The lifting mechanism is a winch, and the traction rope of the winch is fixedly connected to the end of the clamping member that moves longitudinally.

4. The vertical rolling mill universal shaft auxiliary installation device according to claim 1, characterized in that: The lifting mechanism is a pushing mechanism composed of multiple pushing cylinders, the output end of the pushing mechanism is connected to the end of the clamping member that moves laterally, and the pushing direction of the pushing mechanism is parallel to the length direction of the beam.

5. The vertical rolling mill universal shaft auxiliary installation device according to claim 1, characterized in that: The clamping member is a clamping hoop, and the number of the clamping hoop is at least two.

6. The vertical rolling mill universal shaft auxiliary installation device according to claim 1, characterized in that: A lifting mechanism is provided between the bottom plate of the base and the guide beam.

7. A method for using the vertical rolling mill universal shaft auxiliary installation device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Install the universal joint onto the clamping piece, move the auxiliary installation device to the universal joint installation position corresponding to the vertical rolling mill to be installed, start the lifting mechanism, and make the two ends of the clamping piece slide along the guide grooves of the horizontal beam and vertical beam respectively to realize the switching between the horizontal and vertical states of the universal joint.

8. The method for using the vertical rolling mill universal shaft auxiliary installation device according to claim 7, characterized in that: The following steps are involved: S1. Move the universal joint back into the opened clamp, connect and lock it at the crossbeam area, and move the base to the installation position of the universal joint; S2. After fixing the base, start the lifting mechanism and lift the longitudinally moving end of the clamping piece or push the transversely moving end of the clamping piece toward the vertical beam to convert the universal joint from a horizontal state to a vertical state. When one end of the universal joint is close to the reducer at the installation position, the installer will fine-tune the position of the universal joint to facilitate installation. S3. After the universal joint is installed at the installation position, the clamping piece on the universal joint is opened, the supporting mechanism is removed, and the device is moved away from the installation position to complete the separation of the device and the universal joint.

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