A device and method for simultaneously replacing a plurality of carrier rollers on a swing door

Abstract

The application discloses a device and method capable of simultaneously replacing multiple rollers on a swing door of a loop system, belonging to the technical field of loop system internal roller replacement technology, and comprises a longitudinal moving platform, a transverse moving base, a fixed frame, multiple rolling arms and multiple jacking arms.The transverse moving base is arranged on the longitudinal moving platform in a transverse moving mode.The fixed frame is arranged in a vertical direction and connected with the transverse moving base.The multiple rolling arms are linearly arranged in the vertical direction and connected with the fixed frame.The lifting frame is arranged on the fixed frame in a lifting mode.The multiple jacking arms are linearly arranged below the rolling arms in the vertical direction and connected with the lifting frame.The jacking arms and the rolling arms are alternately arranged in the vertical direction.The application realizes batch replacement of the rollers on the swing door, greatly improves the construction efficiency, reduces the installation height of the rollers on the top of the fixed frame, and greatly improves the safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inside roll replacement of loop system, in particular to a device and method for simultaneously replacing multiple rolls on swing doors of a loop. BACKGROUND

[0002] In the cold rolling area, horizontal loops are widely distributed in hot galvanizing, electroplating zinc, silicon steel and other units. Its main function is to store strip steel, and to ensure the normal operation of the unit during roll changing, strip welding and operation. Due to the structure and function of the loop, it is generally arranged in a relatively closed space such as a pit or a steel structure frame, and the entire loop area is often tens of meters long, but only two ends of the loop area are provided with lifting ports, so that the crane, crane and other lifting equipment cannot directly lift the internal components, thereby making it difficult to lift and transport the loop internal equipment during replacement.

[0003] In most cases, a single roll on the swing door of the loop needs to be manually operated by four workers, two workers lifting the roll from below, and two workers pulling the roll upward using a pulley and a rope from a high place, thereby moving the roll to an installation position or a disassembly position. 0.5m~4m, and then installing or disassembling. The above manual replacement method not only occupies a large amount of human resources, but also has the problems of low replacement efficiency, high labor intensity and high safety risk.

[0004] The patent document with publication number CN109834116B discloses a replacement system and method for the top roll of a horizontal loop. The device rotates the roll horizontally to the upper walkway, and then lifts it to the ground, reducing the labor intensity of the workers, ensuring the safety of the workers, and improving the roll replacement efficiency. However, this device can only replace a single roll, and the improvement in roll replacement efficiency is limited, making it increasingly difficult to meet the requirements of the production workshop for roll replacement efficiency. For example, in a loop area, there are 6 pairs of swing doors, each swing door has 5 rolls, that is, there are a total of 60 rolls. When replacing the rolls, each roll is replaced one by one, which will result in a long replacement cycle, seriously affecting the production efficiency of the cold rolling area. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a device that can simultaneously replace multiple rolls on swing doors of a loop, in order to solve the technical problem of low efficiency of the existing roll replacement method.

[0006] The technical solution adopted by the present application is as follows: a device for simultaneously replacing multiple rolls on swing doors of a loop, comprising:

[0007] a longitudinal moving platform, which can move longitudinally along the track inside the loop;

[0008] A horizontal moving base is arranged on the longitudinal moving platform and is capable of moving horizontally;

[0009] A fixed frame is arranged in the vertical direction and is connected with the horizontal moving base;

[0010] A plurality of rolling arms are linearly arranged in the vertical direction and are connected with the fixed frame, and are used for supporting the rollers;

[0011] A lifting frame is arranged on the fixed frame and is capable of lifting;

[0012] A plurality of jacking arms are linearly arranged below the rolling arms in the vertical direction and are connected with the lifting frame; in the vertical direction, the jacking arms and the rolling arms are arranged alternately, so that the jacking arms can roll onto the rolling arms after jacking the rollers.

[0013] Preferably, the horizontal moving base comprises a horizontal moving part and a rotating part; the horizontal moving part is connected with the longitudinal moving platform and is capable of moving horizontally, and is used for driving the fixed frame to move horizontally and approach or move away from the swing door; the rotating part is arranged on the horizontal moving part and is capable of rotating, and is used for driving the fixed frame to rotate horizontally.

[0014] Preferably, the horizontal moving part comprises a horizontal moving frame, a horizontal moving wheel and a horizontal moving motor; the horizontal moving frame is arranged on the longitudinal moving platform; the horizontal moving wheel is arranged on the horizontal moving frame and is in rolling connection with the longitudinal moving platform; and the horizontal moving motor is arranged on the horizontal moving frame and is in transmission connection with the horizontal moving wheel, and is used for driving the horizontal moving frame to move horizontally and reciprocally on the longitudinal moving platform.

[0015] Preferably, the rotating part comprises a rotating motor, a rotating bearing and a rotating bottom plate; the rotating bearing is arranged in the horizontal moving frame of the horizontal moving part; the rotating bottom plate is arranged above the rotating bearing and is connected with the rotating bearing; and the rotating motor is arranged on one side of the rotating bearing and is in transmission connection with the rotating bearing, and is used for driving the rotating bearing to rotate reciprocally in the horizontal plane.

[0016] Preferably, the fixed frame comprises a lower support frame, an upper turnover frame and a turnover hydraulic cylinder; the bottom end of the upper turnover frame is in rotary connection with the top end of the lower support frame; one end of the turnover hydraulic cylinder is hinged with the upper turnover frame, and the other end is hinged with the lower support frame, so as to drive the upper turnover frame to switch between the vertical state and the horizontal state through the extension and contraction of the turnover hydraulic cylinder.

[0017] Preferably, the top of the upper turnover frame is provided with a top baffle which cooperates with the upper rolling arm and is used for limiting the rollers.

[0018] Preferably, a turnover positioning mechanism is arranged between the lower support frame and the upper turnover frame, the turnover positioning mechanism comprises an upper positioning plate, a positioning screw and a lower positioning plate, the upper positioning plate is fixedly connected with the bottom end of the upper turnover frame, the lower positioning plate is fixedly connected with the top end of the lower support frame, and the positioning screw is arranged between the upper positioning plate and the lower positioning plate in the vertical direction and is threadedly connected with the upper positioning plate or the lower positioning plate, and is used for adjusting the turnover angle of the upper turnover frame.

[0019] Preferably, the number of the rolling arms is 4-6.

[0020] Preferably, the rolling arm comprises a support frame, a transition plate and an axial baffle, one end of the support frame is fixedly connected with the fixed frame, and the other end of the support frame away from the fixed frame is upwardly curved; the transition plate is arranged at the end of the support frame away from the fixed frame; and the axial baffle is fixedly arranged at the two sides of the support frame and is used for axially limiting the carrier roller.

[0021] Preferably, the jacking arms are arranged below the rolling arms in one-to-one correspondence and are liftable, and the jacking arm comprises a connecting frame, a jacking plate and a stop protrusion; one end of the connecting frame is fixedly connected with the lifting frame; the jacking plate is L-shaped, the horizontal end of the jacking plate is fixedly connected with the connecting frame, the vertical end is provided with a jacking inclined surface for rolling the carrier roller towards the fixed frame; and the stop protrusion is arranged at the side of the jacking inclined surface away from the lifting frame and is used for preventing the carrier roller from excessively rolling.

[0022] Preferably, the longitudinal moving platform comprises a longitudinal moving frame, a longitudinal moving motor and longitudinal moving wheels, the transverse moving base is transversely movably arranged in the longitudinal moving frame; the longitudinal moving wheels are arranged at the four corner positions of the longitudinal moving frame, and the longitudinal moving motor is arranged at one side of the longitudinal moving frame and is drivingly connected with the longitudinal moving wheels and is used for driving the longitudinal moving frame to longitudinally reciprocate on the inner track of the loop.

[0023] Another object of the present application is to provide a method for simultaneously replacing multiple carrier rollers on the swing door of the loop, wherein the method uses the device for simultaneously replacing multiple carrier rollers on the swing door of the loop, and the method comprises the following steps:

[0024] S10: old roller removal operation; comprising

[0025] S11: controlling the longitudinal moving platform to longitudinally move to one side of the swing door along the inner track of the loop;

[0026] S12: controlling the transverse moving base to rotate on the longitudinal moving platform until the jacking arm is rotated to the vertical position of the swing door;

[0027] S13: controlling the transverse moving base to transversely move on the longitudinal moving platform until the jacking inclined surface of the jacking arm is transversely moved to the position directly below the carrier roller on the swing door;

[0028] S14: driving the lifting frame and the jacking arm to rise by the lifting hydraulic cylinder until the jacking slope of the jacking arm jacks the carrier roller out of the positioning groove of the swing door and rolls to the rolling arm;

[0029] S15: driving the lifting frame and the jacking arm to descend by the lifting hydraulic cylinder;

[0030] S16: controlling the reverse lateral movement of the lateral base on the longitudinal platform to move the jacking arm out from below the swing door,

[0031] S17: controlling the longitudinal movement of the longitudinal platform along the inner track of the loom to below the hoisting hole;

[0032] S20: carrier roller hoisting operation; comprising

[0033] S21: driving the upper turnover frame to turn over from the vertical state to the horizontal state by the turnover hydraulic cylinder;

[0034] S22: hoisting the old roller on the rolling arm upward;

[0035] S23: lowering the new roller onto the rolling arm;

[0036] S24: driving the upper turnover frame to turn over from the horizontal state to the vertical state by the turnover hydraulic cylinder;

[0037] S30: new roller installation operation; comprising

[0038] S31: controlling the longitudinal movement of the longitudinal platform along the inner track of the loom to one side of the swing door;

[0039] S32: controlling the lateral movement of the lateral base on the longitudinal platform until the jacking slope of the jacking arm moves to the exact below of the carrier roller on the swing door;

[0040] S33: driving the lifting frame and the jacking arm to rise to the installation position by the lifting hydraulic cylinder;

[0041] S34: manually pulling the carrier roller on the rolling arm to roll laterally to the jacking slope;

[0042] S35: driving the lifting frame and the jacking arm to descend by the lifting hydraulic cylinder and making the carrier roller fall into the positioning groove on the swing door;

[0043] S36: controlling the reverse lateral movement of the lateral base on the longitudinal platform,

[0044] S37: controlling the longitudinal movement of the longitudinal platform along the inner track of the loom.

[0045] The beneficial effects of the present application are:

[0046] 1. The application adopts the mode of simultaneously mechanically lifting and disassembling multiple rollers, first sets a longitudinal moving platform on the inner rail of the loop, realizes the automatic longitudinal movement of the roller between the swing door and the hoisting opening by the longitudinal movement of the longitudinal moving platform on the inner rail of the loop, then sets a transverse moving base capable of transverse movement on the longitudinal moving platform, realizes the movement of the roller in the transverse direction by the transverse movement of the transverse moving base on the longitudinal moving platform, finally sets a fixed frame on the transverse moving base, the fixed frame is fixedly connected with multiple rolling arms, sets a liftable lifting frame on the fixed frame, and the lifting frame is fixedly connected with a jacking arm, the jacking action of the jacking arm on the roller can automatically separate the roller from the swing door and roll the roller onto the rolling arm, and the roller is supported by the rolling arm, realizing the simultaneous disassembly of multiple rollers on the swing door, the support and lowering action of the jacking arm on the roller can realize the simultaneous installation of multiple rollers on the swing door, which can improve the replacement efficiency of the roller, shorten the replacement cycle, reduce the labor intensity, and ensure the personal safety of the workers.

[0047] 2. The fixed frame in the application comprises an upper turnover frame and a lower support frame, the bottom end of the upper turnover frame is hinged with the top end of the lower support frame through a rotating shaft, and a turnover hydraulic cylinder is further arranged between the lower support frame and the upper turnover frame, the extension and shortening of the turnover hydraulic cylinder can make the upper turnover frame rotate in the vertical plane, so that the upper turnover frame can be switched between the horizontal state and the vertical state, thereby reducing the hoisting height of the roller and facilitating the hoisting of the old roller and the lowering of the new roller.

[0048] 3. The transverse moving base in the application comprises a transverse moving part and a rotating part, the transverse moving part is transversely movably arranged on the longitudinal moving platform, the rotating part is rotatably arranged on the transverse moving part and fixedly connected with the fixed frame, the rotating part can drive the fixed frame to rotate, so that the rolling arm and the jacking arm can replace the rollers of the movable door on both sides of the inner rail of the loop. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 It is one of the structure schematic views of the device capable of simultaneously replacing multiple rollers on the swing door of the loop of the application;

[0050] Figure 2 It is the second structure schematic view of the device capable of simultaneously replacing multiple rollers on the swing door of the loop of the application.

[0051] Figure 3 It is the front view of the device capable of simultaneously replacing multiple rollers on the swing door of the loop of the application;

[0052] Figure 4 It is the structure schematic view of the longitudinal moving platform and the transverse moving base;

[0053] Figure 5 It is the structure schematic view of the rolling arm;

[0054] Figure 6 Fig. 1 is a schematic view of the connection of the rolling arm and the fixed frame;

[0055] Figure 7 Fig. 2 is a schematic view of the structure of the jacking arm;

[0056] Figure 8 Fig. 3 is a schematic view of the structure of the overturning positioning mechanism;

[0057] Figure 9 Fig. 4 is a reference view of the use state of the device for simultaneously replacing multiple rollers on the swing door of the live roll according to the present application;

[0058] Explanation of reference numerals in the drawings:

[0059] 10, roller;

[0060] 20, swing door;

[0061] 30, track;

[0062] 100, longitudinal moving platform;

[0063] 110, longitudinal moving frame; 120, longitudinal moving motor; 130, longitudinal moving wheel;

[0064] 200, transverse moving base;

[0065] 210, transverse moving part; 220, transverse moving frame; 230, transverse moving wheel; 240, transverse moving motor; 250, rotating part; 260, rotating bearing; 270, rotating base plate; 280, rotating motor;

[0066] 300, fixed frame;

[0067] 310, lower support frame; 320, upper overturning frame; 330, top baffle; 340, overturning positioning mechanism; 350, overturning hydraulic cylinder; 360, rotating shaft; 370, connecting plate; 380, reinforcing rib plate; 390, longitudinal channel steel;

[0068] 341, upper positioning plate; 342, positioning screw; 343, positioning nut; 344, lower positioning plate;

[0069] 400, rolling arm;

[0070] 410, lower rolling arm; 420, upper rolling arm; 430, support frame; 440, transition plate; 450, axial baffle; 460, vertical plate; 470, hinged shaft; 480, horizontal plate; 490, adjusting bolt;

[0071] 500, lifting frame;

[0072] 510, upper lifting frame; 520, upper lifting frame;

[0073] 600, lifting arm;

[0074] 610. Lower lifting arm; 620. Upper lifting arm; 630. Connecting frame; 640. Lifting plate; 650. Stop protrusion; 660. Lifting ramp;

[0075] 700. Lifting hydraulic cylinder;

[0076] 710. Lifting hydraulic cylinder; 720. Lifting hydraulic cylinder. Detailed Implementation

[0077] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0078] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0079] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0080] Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0081] Examples, such as Figures 1-8 As shown, a device capable of simultaneously replacing multiple rollers on a sliding swing door is used to simultaneously replace five rollers 10 on the sliding swing door 20 in the sliding area; the device includes:

[0082] The longitudinal moving platform 100, after being placed on the inner loop track 30, can move along the longitudinal direction of the inner loop track 30 (the length direction of the inner loop track 30, i.e., the longitudinal direction of the inner loop track 30). Figure 9 (The double arrows indicate the direction of movement) moving back and forth.

[0083] A transverse base 200 is disposed on a longitudinal platform 100 and is capable of moving in the lateral direction ( Figure 9 (Move back and forth in the direction of the single arrow).

[0084] A fixed frame 300 is provided in a vertical direction. Its bottom end is detachably fixed to the horizontal sliding base 200. It can move away from or closer to the swing door 20 under the action of the horizontal sliding base 200.

[0085] Rolling arms 400, multiple rolling arms 400 are arranged linearly in the vertical direction, and one end of the rolling arms 400 is detachably and fixedly connected to the fixed frame 300, for supporting and transporting the idler roller 10.

[0086] A lifting frame 500 is mounted within a fixed frame 300 and can be raised and lowered.

[0087] Lifting arms 600, multiple lifting arms 600 are arranged linearly in the vertical direction, and one end of the lifting arm 600 is detachably and fixedly connected to the lifting frame 500.

[0088] A lifting hydraulic cylinder 700 is provided, with one end fixedly connected to a fixed frame 300 and the other end fixedly connected to a lifting frame 500, so that the lifting frame 500 can be raised or lowered within the fixed frame 300 by extending or shortening the lifting hydraulic cylinder 700.

[0089] In the vertical direction, the lifting arm 600 and the rolling arm 400 are alternately arranged, with the lifting arm 600 located below the rolling arm 400 in a one-to-one correspondence, so that after the lifting arm 600 lifts the roller 10, it can roll onto the rolling arm 400.

[0090] The application adopts the mode of simultaneously mechanically lifting and disassembling multiple rollers 10, first sets a longitudinal moving platform 100 on the inner loop track 30 of the loop, uses the longitudinal reciprocating movement of the longitudinal moving platform 100 on the inner loop track 30 of the loop to realize the automatic movement of the roller 10 between the swing door 20 and the hoisting opening; then sets a transverse moving base 200 capable of moving transversely on the longitudinal moving platform 100, can realize the automatic movement of the roller 10 in the transverse direction by using the transverse reciprocating movement of the transverse moving base 200 on the longitudinal moving platform 100; finally sets a fixed frame 300 on the transverse moving base 200, the fixed frame 300 is fixedly connected with multiple rolling arms 400, and a liftable lifting frame 500 is arranged on the fixed frame 300, and the lifting frame 500 is fixedly connected with a jacking arm 600, the jacking arm 600 can lift the roller 10, the roller 10 is automatically separated from the swing door 20 and rolled onto the rolling arm 400, the roller is supported and transported by the rolling arm 400, and the simultaneous disassembly of multiple rollers 10 on the swing door 20 is realized; at the same time, the simultaneous installation of multiple rollers 10 on the swing door 20 can be realized by supporting and placing the roller 10 by the jacking arm 600, which not only can improve the replacement efficiency of the roller 10 and shorten the replacement cycle, but also can reduce the labor intensity and ensure the personal safety of the workers.

[0091] In one embodiment, as shown in Figure 1 、 Figure 2 、 Figure 4 The transverse moving base 200 includes a transverse moving part 210 and a rotating part 250, the transverse moving part 210 is arranged on the longitudinal moving platform 100 and can move reciprocally in the transverse direction, and is used to drive the fixed frame 300 to move transversely, so as to approach or move away from the swing door. The rotating part 250 is arranged on the transverse moving part 210 and can rotate reciprocally in the horizontal plane, and is used to drive the fixed frame 300 to rotate horizontally.

[0092] The reason for such arrangement is that: in the loop area, the swing doors 20 are arranged in pairs on both sides of the track 30, and when the replacement operation of the carrier roller 10 is performed, the carrier roller 10 on the swing door 20 on both sides of the track 30 needs to be replaced. In the embodiment, the horizontal moving base 200 is arranged as two parts of the horizontal moving part 210 and the rotating part 250 connected in rotation, the fixed frame 300 can be driven to rotate in the horizontal plane by the rotating part 250, thereby changing the horizontal position of the rolling arm 400 and the jacking arm 600 on the lifting frame 500 on the fixed frame 300, preventing the rolling arm 400 and the jacking arm 600 from interfering with the swing door 20 during the longitudinal movement, thereby affecting the transportation of the carrier roller 10; at the same time, the fixed frame 300 can be driven to rotate in the horizontal plane by the rotating part 250, changing the orientation of the rolling arm 400 and the jacking arm 600 in the horizontal plane, so that the rolling arm 400 and the jacking arm 600 are aligned with the swing doors 20 on different sides, and the replacement operation of the carrier roller 10 on both sides of the swing door 20 is realized, thereby simplifying the structure of the device.

[0093] In a specific embodiment, as shown in Figure 1 、 Figure 2 、 Figure 4 The horizontal moving part 210 includes a horizontal moving frame 220, horizontal moving wheels 230 and a horizontal moving motor 240. The horizontal moving frame 220 is a rectangular frame and is arranged inside the longitudinal moving frame 110 of the longitudinal moving platform 100. In the longitudinal direction, four horizontal moving wheels 230 are arranged on both sides of the horizontal moving frame 220 and are rolling connected to the inside channel steel of the longitudinal moving frame 110 of the longitudinal moving platform 100. The horizontal moving motor 240 is fixedly arranged inside the horizontal moving frame 220 and is driving connected to the two horizontal moving wheels 230 at one end of the horizontal moving frame 220 through a transmission chain and a transmission shaft, so as to drive the horizontal moving wheels 230 to rotate by the horizontal moving motor 240, and then to realize the reciprocating horizontal movement of the horizontal moving part 210 on the longitudinal moving platform 100 by the rolling of the horizontal moving wheels 230 inside the longitudinal moving frame 110 of the longitudinal moving platform 100.

[0094] The rotating part 250 includes a rotating motor 280, a rotating bearing 260 and a rotating base plate 270. The fixed part of the rotating bearing 260 is fixedly arranged in the middle of the inner cavity of the horizontal moving frame 220. The rotating base plate 270 is arranged directly above the rotating bearing 260 and is fixedly connected to the rotating part of the rotating bearing 260 through a connecting rod. The rotating motor 280 is fixedly arranged inside the horizontal moving frame 220 and is located at one side of the rotating bearing 260. The rotating motor 280 is driving connected to the rotating bearing 260, so as to drive the rotating of the rotating base plate 270 connected with the rotating bearing 260 by the rotation of the rotating motor 280, and then to drive the fixed frame 300 to rotate in the horizontal plane.

[0095] In a specific embodiment, as shown in Figure 2 、 Figure 3As shown, the fixed frame 300 comprises a lower support frame 310, an upper turnover frame 320 and a turnover hydraulic cylinder 350; wherein the bottom end of the lower support frame 310 is detachably fixedly connected with the transverse base 200, the top end of the lower support frame 310 is fixedly connected with the bottom end of the connecting plate 370, the top end of the connecting plate 370 is rotatably connected with the bottom end of the upper turnover frame 320 through the rotating shaft 360, so that the bottom end of the upper turnover frame 320 is hinged with the top end of the lower support frame 310; a reinforcing rib plate 380 is arranged on one side of the lower support frame 310, the top end of the reinforcing rib plate 380 is fixedly connected with the lower support frame 310, and the bottom end of the reinforcing rib plate 380 is fixedly connected with the transverse base 200, so as to enhance the stability of the connection between the lower support frame 310 and the transverse base 200. A longitudinal channel steel 390 is arranged on the top of the two reinforcing rib plates 380, and the two ends of the longitudinal channel steel 390 are fixedly connected with the reinforcing rib plates 380 one by one. The top end of the turnover hydraulic cylinder 350 is hinged with the bottom end of the upper turnover frame 320, and the bottom end of the turnover hydraulic cylinder 350 is hinged with the longitudinal channel steel 390, so as to drive the upper turnover frame 320 to switch between the vertical state and the horizontal state through the extension and shortening of the turnover hydraulic cylinder 350.

[0096] The reason for such arrangement is that: at the hoisting port of the looping area, the old roller needs to be hoisted vertically out, and the new roller needs to be hoisted vertically in; for the carrier roller 10 at a low position (below 1.5 m), the operator can manually control the carrier roller 10 to roll on the rolling arm 400 to facilitate the disengagement of the old roller from the device or to make the new roller to be lowered onto the rolling arm 400; but for the carrier roller 10 at different high positions (2 m to 4 m), the operator needs to stand on a ladder and manually push the carrier roller 10 to roll on the rolling arm 400, which increases the safety risk of the operator. In the present embodiment, the fixed frame 300 is arranged as the upper turnover frame 320 and the lower support frame 310 which are independent of each other, and the bottom end of the upper turnover frame 320 is hinged with the top end of the lower support frame 310, so that the upper turnover frame 320 can be turned clockwise to the horizontal state under the action of the turnover hydraulic cylinder 350, and then the rolling arm 400 and the jacking arm 600 are turned to the vertical state, which not only reduces the installation height of the carrier roller 10 on the upper turnover frame 320, but also reduces the obstruction directly above the carrier roller 10, realizes the direct hoisting and lowering of the carrier roller 10 on the upper turnover frame 320, reduces the degree of manual participation of the operator, and reduces the labor intensity and safety risk.

[0097] Specifically, the upper lifting frame 520 is provided with lifting rollers on both sides, which are rolling connected in the inner side channel steel of the upper turnover frame 320; the top end of the upper lifting hydraulic cylinder 720 is fixedly connected with the upper turnover frame 320, and the bottom end is fixedly connected with the upper lifting frame 520, so as to drive the upper lifting frame 520 to rise and fall in the upper turnover frame 320 through the extension and shortening of the upper lifting hydraulic cylinder 720. Two upper rolling arms 420 are arranged on one side of the upper turnover frame 320, and the two upper rolling arms 420 are arranged in parallel one above the other, one end of the upper rolling arm 420 is fixedly connected with the upper turnover frame 320, and the other end of the upper rolling arm 420 away from the upper turnover frame 320 is upwardly tilted, so as to prevent the carrier roller 10 from rolling off the upper rolling arm 420; two upper lifting arms 620 are arranged on one side of the upper lifting frame 520, the upper lifting arms 620 are arranged one by one below the upper rolling arms 420, one end of the upper lifting arm 620 is fixedly connected with the upper lifting frame 520, and the other end is provided with a stop protrusion 650 or a limiting baffle, which is used to prevent the carrier roller 10 from excessively rolling and falling off when rolling from the upper rolling arm 420 to the upper lifting arm 620.

[0098] The upper lifting frame 510 is provided with lifting rollers on both sides, which are rolling connected in the inner side channel steel of the lower support frame 310; the top end of the upper lifting hydraulic cylinder 710 is fixedly connected with the lower support frame 310, and the bottom end is fixedly connected with the upper lifting frame 510, so as to drive the upper lifting frame 510 to rise and fall in the lower support frame 310 through the extension and shortening of the upper lifting hydraulic cylinder 710. Three lower rolling arms 410 are arranged on the other side of the lower support frame 310, and the three lower rolling arms 410 are arranged in parallel along the vertical direction, one end of the lower rolling arm 410 is fixedly connected with the lower support frame 310, and the other end of the lower rolling arm 410 away from the lower support frame 310 is downwardly tilted, so as to prevent the carrier roller 10 from rolling off the lower rolling arm 410; three lower lifting arms 610 are arranged on one side of the upper lifting frame 510, the lower lifting arms 610 are arranged one by one below the lower rolling arms 410, one end of the lower lifting arm 610 is fixedly connected with the upper lifting frame 510, and the other end is provided with a stop protrusion 650 or a limiting baffle, which is used to prevent the carrier roller 10 from excessively rolling and falling off when rolling from the lower rolling arm 410 to the lower lifting arm 610.

[0099] Preferably, as shown in Figure 2 、 Figure 3 The top baffle 330 is arranged on the top of the upper turnover frame 320, cooperates with the upper rolling arm 420, and is used to limit the carrier roller 10.

[0100] The reason is that the uppermost roller 10 is easy to fall off from the upper rolling arm 420 due to inertia during the process of turning the upper turnover frame 320 from the vertical state to the horizontal state, thereby affecting the lifting of the roller 10. In the embodiment, the top baffle 330 is arranged at the top end of the upper turnover frame 320, and the top baffle 330 is located on the same side of the upper turnover frame 320 as the upper rolling arm 420. During the process of turning the upper turnover frame 320 from the vertical state to the horizontal state, the limiting and stopping effect of the top baffle 330 on the roller 10 can effectively prevent the roller 10 from falling off, so as to ensure the smooth lifting of the roller 10.

[0101] In a specific embodiment, as shown in Figure 3 、 Figure 8 The turnover positioning mechanism 340 is arranged between the bottom end of the lower support frame 310 and the top end of the upper turnover frame 320. The turnover positioning mechanism 340 includes an upper positioning plate 341, a positioning screw 342, a positioning nut 343, and a lower positioning plate 344. The upper positioning plate 341 is horizontally arranged and fixedly connected to the bottom end of the upper turnover frame 320. The lower positioning plate 344 is horizontally arranged and fixedly connected to the top end of the lower support frame 310. The positioning screw 342 is arranged in a vertical direction and located between the upper positioning plate 341 and the lower positioning plate 344. The positioning screw 342 is threadedly connected to the threaded hole of the upper positioning plate 341 or the lower positioning plate 344. The positioning nut 343 is threadedly connected to the positioning screw 342 and abuts against the upper positioning plate 341 or the lower positioning plate 344. By changing the axial length of the positioning screw 342 between the upper positioning plate 341 and the lower positioning plate 344, the maximum turnover angle of the upper turnover frame 320 is adjusted, thereby ensuring that the roller 10 does not fall off from the rolling arm 400 during the longitudinal movement and the transverse movement.

[0102] In a specific embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 The number of the rolling arms 400 is 4-6.

[0103] The reason is that the number of the rollers 10 on the different swing doors 20 is different, so that the number of the rolling arms 400 needs to be set to be the same as the number of the rollers 10 on the swing door 20 in order to complete the replacement of all the rollers 10 on the swing door 20 at one time.

[0104] In a specific embodiment, as shown in Figure 2 、 Figure 5 、 Figure 6As shown, the rolling arm 400 comprises a support frame 430, a transition plate 440 and an axial baffle 450; the support frame 430 is a U-shaped support frame, and the open end of the U-shaped support frame is fixedly connected with the fixed frame 300, and the closed end (i.e. the end away from the fixed frame 300) is upwardly curved to prevent the roller 10 from accidentally falling off the rolling arm 400; the transition plate 440 is arranged at the end of the support frame 430 away from the fixed frame 300, and is used to guide the roller 10 to roll onto the rolling arm 400 after the jacking arm 600 jacks up the roller 10 from the mounting groove of the swing door 20; and the axial baffle 450 is fixedly arranged at both sides of the support frame 430, and is used to axially limit the roller 10 to prevent the roller 10 from moving axially and falling off the rolling arm 400. The axial baffle 450 can be fixedly connected with the fixed frame 300, or can be directly fixedly connected with the support frame 430.

[0105] The reason for such an arrangement is that the swing door 20 is provided with a plurality of cantilevers, and the roller 10 is arranged in the mounting groove behind the cantilevers, so that there is a large gap between the support frame 430 of the rolling arm 400 and the jacked-up roller 10, and it is difficult to ensure that the roller 10 will necessarily roll onto the rolling arm 400 after being jacked up. In this embodiment, the transition plate 440 is arranged on the support frame 430 of the rolling arm 400, and when the horizontal moving base 200 moves horizontally, the transition plate 440 can move horizontally above the cantilever, so that the roller 10 can directly fall on the transition plate 440 after being jacked up, and continue to roll onto the support frame 430 under the guidance of the transition plate 440. The axial baffles 450 arranged at both sides of the support frame 430 can prevent the rolling arm 400 from moving axially, thereby preventing the roller 10 from accidentally falling off, and meeting the safety requirements for replacing the roller 10.

[0106] Specifically, a vertical plate 460 and a horizontal plate 480 are vertically and fixedly connected on one side of the fixed frame 300, one end of the support frame 430 is hingedly connected with the vertical plate 460 through a hinge shaft 470, and the horizontal plate 480 is provided with a connecting threaded hole, a adjusting bolt 490 is threadedly connected in the threaded hole, and one end of the adjusting bolt abuts against the support frame 430.

[0107] The reason for such an arrangement is that the end of the rolling arm 400 away from the fixed frame 300 is upwardly curved, i.e. the rolling arm 400 needs to be arranged at an angle, and the rolling of the roller 10 on the rolling arm 400 is different at different angles of the end of the rolling arm 400 upwardly curved. In this embodiment, the end of the rolling arm 400 is hingedly connected with the fixed frame 300, so that the angle of the rolling arm 400 upwardly curved can be adjusted, and the angle of the rolling arm 400 upwardly curved can be fixed by screwing the adjusting bolt 490.

[0108] In a specific embodiment, as shown in FIG. 6, the horizontal moving base 200 comprises a horizontal moving frame 210 and a horizontal moving mechanism 220; the horizontal moving frame 210 is provided with a plurality of horizontal moving wheels 211, and the horizontal moving mechanism 220 is arranged on the horizontal moving frame 210 and is used to drive the horizontal moving wheels 211 to move horizontally. Figure 2 , Figure 7As shown, the number of jacking arms 600 is equal to the number of rolling arms 400, and each jacking arm 600 is arranged below a corresponding rolling arm 400 in a one-to-one correspondence and is liftable. The jacking arm 600 includes a connecting frame 630, a jacking plate 640, and a stop protrusion 650. The connecting frame 630 is a horizontally arranged rectangular frame, one end of which is fixedly connected to the lifting frame 500. The jacking plate 640 is in the shape of an L as a whole, and a horizontal end of the jacking plate 640 is fixedly connected to the other end of the connecting frame 630. A vertical end of the jacking plate 640 is provided with a jacking inclined surface 660 for rolling the carrier roller 10 toward the fixed frame 300. The jacking inclined surface 660 can automatically roll the jacked carrier roller 10 toward the rolling arm 400. The stop protrusion 650 is arranged on a side of the jacking inclined surface 660 away from the lifting frame 500, and is used for limiting the rolling of the carrier roller 10 from the rolling arm 400 toward the jacking arm 600, thereby preventing the carrier roller 10 from being accidentally dropped due to excessive rolling.

[0109] The jacking plate 640 is arranged at one end of the connecting frame 630 of the jacking arm 600 in an L shape, so that the carrier roller 10 can be directly jacked by the vertical end of the jacking plate 640, and the jacked carrier roller 10 can be automatically rolled onto the rolling arm 400 by the guiding action of the jacking inclined surface 660.

[0110] In a specific embodiment, as shown in Figure 1 , Figure 2 , Figure 4 As shown, the longitudinal moving platform 100 includes a longitudinal moving frame 110, longitudinal moving motors 120, and longitudinal moving wheels 130. The longitudinal moving frame 110 is a rectangular frame, and the transverse moving base 200 is arranged inside the longitudinal moving frame 110 and can move transversely. The four longitudinal moving wheels 130 are arranged one by one below the four corner positions of the longitudinal moving frame 110. The two longitudinal moving motors 120 are arranged on one side of the longitudinal moving frame 110 in the longitudinal direction. Each longitudinal moving motor 120 is chain transmission connected to one longitudinal moving wheel 130, so as to drive the longitudinal moving wheel 130 to rotate by the longitudinal moving motor 120, thereby driving the longitudinal moving frame 110 to move longitudinally and reciprocally on the live loop inner rail 30.

[0111] The reason is that the lowest position of the roller 10 on the swing door 20 is about 0.5m from the ground, which requires the height of the horizontal moving base 200 on the longitudinal moving platform 100 to be less than 0.4m. In the embodiment, the longitudinal moving platform 100 includes a longitudinal moving frame 110, a longitudinal moving motor 120 and a longitudinal moving wheel 130, the longitudinal moving motor 120 and the longitudinal moving wheel 130 are arranged outside the longitudinal moving frame 110, so that the horizontal moving base 200 can be horizontally moved inside the longitudinal moving frame 110, which is beneficial to reduce the height of the horizontal moving base 200. At the same time, the horizontal moving base 200 also uses the built-in mode of the horizontal moving motor 240, the rotating motor 280 and the rotating bearing 260, which is also beneficial to reduce the height of the horizontal moving base 200.

[0112] As shown in the embodiment, a method for simultaneously replacing a plurality of rollers on a swing door is provided, which uses the device for simultaneously replacing a plurality of rollers on a swing door, and the method comprises the following steps: Figure 9

[0113] S10: performing roller removal operation on the swing door;

[0114] Specifically, the method comprises the following steps:

[0115] S11: driving the longitudinal moving platform 100 to move longitudinally along the inner track 30 of the loop to one side of the swing door 20 by controlling the longitudinal moving motor 120.

[0116] S12: driving the horizontal moving base 200 to rotate on the longitudinal moving platform 100 by controlling the rotating motor 280, until the jacking arm 600 is rotated to a position perpendicular to the swing door 20.

[0117] S13: driving the horizontal moving base 200 to move horizontally on the longitudinal moving platform 100 by controlling the horizontal moving motor 240, until the jacking slope 660 of the jacking arm 600 moves horizontally to the position directly below the roller 10 on the swing door 20.

[0118] S14: driving the lifting frame 500 and the jacking arm 600 to rise by controlling the lifting hydraulic cylinder 700 to shorten, until the jacking slope 660 of the jacking arm 600 jacks the roller 10 out of the positioning groove of the swing door 20 and rolls onto the rolling arm 400.

[0119] S15: driving the lifting frame 500 and the jacking arm 600 to descend and reset by controlling the lifting hydraulic cylinder 700 to lengthen.

[0120] ​S16: By controlling the horizontal moving motor 240, the horizontal moving base 200 is reversely horizontally moved on the longitudinal moving platform 100, so that the jacking arm 600 is moved out from below the swing door 20 until the horizontal moving base 200 is horizontally moved to the middle position of the longitudinal moving platform 100; then by controlling the rotating motor 280, the horizontal moving base 200 is rotated on the longitudinal moving platform 100 until the jacking arm 600 is rotated to the parallel position with the swing door 20.

[0121] S17: By controlling the longitudinal moving motor 120, the longitudinal moving platform 100 is longitudinally moved along the inner loop 30 of the loop to below the hoisting hole.

[0122] S21: By controlling the extension of the overturning hydraulic cylinder 350, the upper overturning frame 320 is driven to overturn clockwise from the vertical state to the horizontal state.

[0123] S22: The old roller on the rolling arm 400 is hoisted upward from the hoisting hole.

[0124] S23: The new roller is lowered onto the rolling arm 400 from the hoisting hole.

[0125] S24: By controlling the shortening of the overturning hydraulic cylinder 350, the upper overturning frame 320 is driven to overturn counterclockwise from the horizontal state to the vertical state.

[0126] S30: New roller installation operation is performed; specifically including:

[0127] S31: By controlling the longitudinal moving motor 120, the longitudinal moving platform 100 is longitudinally moved along the inner loop 30 of the loop to one side of the swing door 20.

[0128] S32: By controlling the horizontal moving motor 240, the horizontal moving base 200 is horizontally moved on the longitudinal moving platform 100 until the jacking slope 660 of the jacking arm 600 is horizontally moved to directly below the roller 10 on the swing door 20.

[0129] S33: By controlling the shortening of the lifting hydraulic cylinder 700, the lifting frame 500 and the jacking arm 600 are driven to rise to the installation position.

[0130] S34: The operator on the upper walkway manually pulls the roller 10 on the rolling arm 400 to horizontally roll onto the jacking slope 660.

[0131] S35: By controlling the extension of the lifting hydraulic cylinder 700, the lifting frame 500 and the jacking arm 600 are driven to descend, and the roller 10 falls into the positioning groove on the swing door 20.

[0132] S36: By controlling the horizontal moving motor 240, the horizontal moving base 200 is reversely horizontally moved on the longitudinal moving platform 100.

[0133] S37: by controlling the longitudinal movement motor 120, driving the longitudinal movement platform 100 to move along the loop inner track 30.

[0134] Compared with the prior art, the present application has at least the following beneficial technical effects:

[0135] 1. The present application realizes batch replacement of the upper carrier roller of the swing door, greatly improving the construction efficiency.

[0136] 2. The present application switches the upper turnover frame between the horizontal state and the vertical state through the turnover hydraulic cylinder, reduces the installation height of the carrier roller at the top of the fixed frame, and greatly improves the safety and construction efficiency.

[0137] 3. The present application drives the longitudinal movement platform to carry the carrier roller in the loop through the longitudinal movement motor, avoiding the danger of manual lifting.

[0138] 4. The replacement device in the present application is simple and reliable, can be popularized in the replacement project of the carrier roller of the swing door of the galvanizing, silicon steel, hot-dip galvanizing and other units, and has great promoting significance for improving labor efficiency, reducing personnel investment and consumption, ensuring the quality and safety of project implementation, so the prospect of popularization and application is very good.

[0139] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A device capable of simultaneously replacing a plurality of carrier rollers on a live roll swing door, characterized in that, The application relates to a longitudinal and transverse moving platform for a looper, which comprises the following parts: a longitudinal moving platform (100) capable of moving along a looper inner track (30); a transverse moving base (200) arranged on the longitudinal moving platform (100) and capable of moving transversely; a fixed frame (300) arranged along a vertical direction and connected with the transverse moving base (200); a plurality of rolling arms (400) linearly arranged along the vertical direction and connected with the fixed frame (300) and used for supporting a carrier roller (10); a lifting frame (500) arranged on the fixed frame (300) and capable of lifting; a plurality of jacking arms (600) linearly arranged along the vertical direction below the rolling arms (400) and connected with the lifting frame (500); the jacking arms (600) and the rolling arms (400) are alternately arranged along the vertical direction, so that the carrier roller (10) can be rolled onto the rolling arms (400) after being jacked up by the jacking arms (600); the fixed frame (300) comprises a lower support frame (310), an upper turnover frame (320) and a turnover hydraulic cylinder (350); the bottom end of the upper turnover frame (320) is rotationally connected with the top end of the lower support frame (310); one end of the turnover hydraulic cylinder (350) is hingedly connected with the upper turnover frame (320), and the other end is hingedly connected with the lower support frame (310), so that the upper turnover frame (320) can be switched between a vertical state and a horizontal state through the extension and retraction of the turnover hydraulic cylinder (350); the number of the rolling arms (400) is 4-6; the rolling arm (400) comprises a support frame (430), a transition plate (440) and an axial baffle (450); one end of the support frame (430) is fixedly connected with the fixed frame (300), and the other end of the support frame (430) away from the fixed frame (300) is upwardly bent; the transition plate (440) is arranged at the end of the support frame (430) away from the fixed frame (300); the axial baffle (450) is fixedly arranged on both sides of the support frame (430) and used for axially limiting the carrier roller (10); the jacking arms (600) are arranged below the rolling arms (400) in a one-to-one correspondence and are capable of lifting; the jacking arm (600) comprises a connecting frame (630), a jacking plate (640) and a stop protrusion (650); one end of the connecting frame (630) is fixedly connected with the lifting frame (500); the jacking plate (640) is L-shaped, the horizontal end of the jacking plate (640) is fixedly connected with the connecting frame (630), the vertical end is provided with a jacking inclined surface (660) for rolling the carrier roller (10) towards the fixed frame (300); the stop protrusion (650) is arranged on the side of the jacking inclined surface (660) away from the lifting frame (500) and used for preventing the carrier roller (10) from excessively rolling. ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. A device capable of simultaneously replacing a plurality of carrier rollers of a swing door with a live roll according to claim 1, characterized in that, The horizontal moving base (200) comprises a horizontal moving part (210) and a rotating part (250), the horizontal moving part (210) is connected to the longitudinal moving platform (100) and can move horizontally, and is used for driving the fixed frame (300) to move horizontally and approach or move away from the swing door (20); the rotating part (250) is arranged on the horizontal moving part (210) and can rotate, and is used for driving the fixed frame (300) to rotate horizontally.

3. A device capable of simultaneously replacing a plurality of carrier rollers of a swing door with a live roll according to claim 2, characterized in that, The horizontal moving part (210) comprises a horizontal moving frame (220), a horizontal moving wheel (230) and a horizontal moving motor (240), the horizontal moving frame (220) is arranged on the longitudinal moving platform (100), the horizontal moving wheel (230) is arranged on the horizontal moving frame (220) and is in rolling connection with the longitudinal moving platform (100), and the horizontal moving motor (240) is arranged on the horizontal moving frame (220) and is in transmission connection with the horizontal moving wheel (230), and is used for driving the horizontal moving frame (220) to move horizontally and reciprocally on the longitudinal moving platform (100); and / or The rotating part (250) comprises a rotating motor (280), a rotating bearing (260) and a rotating bottom plate (270), the rotating bearing (260) is arranged in the horizontal moving frame (220) of the horizontal moving part (210), the rotating bottom plate (270) is arranged above the rotating bearing (260) and is connected with the rotating bearing (260), and the rotating motor (280) is arranged on one side of the rotating bearing (260) and is in transmission connection with the rotating bearing (260), and is used for driving the rotating bearing (260) to rotate reciprocally in a horizontal plane.

4. A device capable of simultaneously replacing a plurality of carrier rollers of a swing door with a live roll according to claim 1, characterized in that, The top of the upper turnover frame (320) is provided with a top baffle (330) matched with the upper rolling arm (420) and used for limiting the carrier roller (10).

5. A device capable of simultaneously replacing a plurality of carrier rollers of a swing door with a live roll as claimed in claim 1, characterized in that, The turnover positioning mechanism (340) is arranged between the lower support frame (310) and the upper turnover frame (320), and comprises an upper positioning plate (341), a positioning screw (342) and a lower positioning plate (344), the upper positioning plate (341) is fixedly connected with the bottom end of the upper turnover frame (320), the lower positioning plate (344) is fixedly connected with the top end of the lower support frame (310), and the positioning screw (342) is arranged between the upper positioning plate (341) and the lower positioning plate (344) in a vertical direction and is in threaded connection with the upper positioning plate (341) or the lower positioning plate (344), and is used for adjusting the turnover angle of the upper turnover frame (320).

6. A device capable of simultaneously replacing a plurality of carrier rollers of a swing door with a live roll as claimed in claim 1, characterized in that, The longitudinal moving platform (100) comprises a longitudinal moving frame (110), a longitudinal moving motor (120) and a longitudinal moving wheel (130), the horizontal moving base (200) is arranged in the longitudinal moving frame (110) and can move horizontally, the longitudinal moving wheel (130) is arranged at four corner positions of the longitudinal moving frame (110), and the longitudinal moving motor (120) is arranged on one side of the longitudinal moving frame (110) and is in transmission connection with the longitudinal moving wheel (130), and is used for driving the longitudinal moving frame (110) to move longitudinally and reciprocally on the live roll inner track (30).

7. A method for simultaneously replacing a plurality of idler rollers of a swing door with a live roll, using the device for simultaneously replacing a plurality of idler rollers of a swing door with a live roll according to any one of claims 1 to 6, characterized in that The method comprises: S10: old roller removal operation; comprising S11: Control the longitudinal movement platform (100) to move longitudinally along the inner track (30) of the loop to one side of the swing door (20); S12: Control the horizontal movement base (200) to rotate on the longitudinal movement platform (100) until the jacking arm (600) rotates to a vertical position with the swing door (20); S13: Control the horizontal movement base (200) to move horizontally on the longitudinal movement platform (100) until the jacking slope (660) of the jacking arm (600) moves horizontally to the exact position below the supporting roller (10) on the swing door (20); S14: Drive the lifting frame (500) and the jacking arm (600) to rise by the lifting hydraulic cylinder (700) until the jacking slope (660) of the jacking arm (600) jacks the supporting roller (10) out of the positioning groove of the swing door (20) and rolls onto the rolling arm (400); S15: Drive the lifting frame (500) and the jacking arm (600) to descend by the lifting hydraulic cylinder (700); S16: Control the horizontal movement base (200) to move reversely horizontally on the longitudinal movement platform (100) so that the jacking arm (600) moves out from below the swing door (20), S17: Control the longitudinal movement platform (100) to move longitudinally along the inner track (30) of the loop to below the hoisting hole; S20: Supporting roller hoisting operation; including S21: Drive the upper turnover frame (320) to turn over from the vertical state to the horizontal state by the turnover hydraulic cylinder (350); S22: Hoist the old roller on the rolling arm (400) upward; S23: Lower the new roller onto the rolling arm (400); S24: Drive the upper turnover frame (320) to turn over from the horizontal state to the vertical state by the turnover hydraulic cylinder (350); S30: New roller installation operation; including S31: Control the longitudinal movement platform (100) to move longitudinally along the inner track (30) of the loop to one side of the swing door (20); S32: Control the horizontal movement base (200) to move horizontally on the longitudinal movement platform (100) until the jacking slope (660) of the jacking arm (600) moves horizontally to the exact position below the supporting roller (10) on the swing door (20); S33: Drive the lifting frame (500) and the jacking arm (600) to rise to the installation position by the lifting hydraulic cylinder (700); S34: Manually pull the supporting roller (10) on the rolling arm (400) to roll horizontally onto the jacking slope (660); S35: Drive the lifting frame (500) and the jacking arm (600) to descend by the lifting hydraulic cylinder (700) and make the supporting roller (10) fall into the positioning groove on the swing door (20); S36: Control the horizontal movement base (200) to move reversely horizontally on the longitudinal movement platform (100), S37: Control the longitudinal movement platform (100) to move longitudinally along the inner track (30) of the loop.

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