Large-area steel structure roof panel paving vehicle

Abstract

The invention belongs to the field of steel structure roof panel construction, and particularly relates to a large-area steel structure roof panel paving vehicle. Comprising a main frame and a sliding suspension arm, two train wheels are distributed at the bottom of the main frame and can be clamped on a convex edge of a paved roof panel; the sliding suspension arm is parallel to the track and is slidably connected to the main frame, the sliding suspension arm can bidirectionally extend out relative to the main frame, a track plate passing space is arranged on the main frame and below the sliding suspension arm, and a hoisting machine tool capable of sliding along the arm length of the sliding suspension arm is hung on the sliding suspension arm; the sliding lifting arm extends backwards, the lifting machine tool moves to the position above the track plate to lift the track plate, the sliding lifting arm extends forwards, and the lifting machine tool moves to the position above the track plate mounting position to put down the track plate; installation personnel can easily complete movement and installation operation of the light roof panel on the steel structure roof with the help of the tool, use of hoisting machinery is reduced, rapid paving of the light roof panel can be achieved, and the installation construction efficiency of the roof panel is improved.

Description

Technical Field

[0001] The invention belongs to the field of steel structure roof panel construction, and in particular relates to a large-area steel structure roof panel paving vehicle. Background Art

[0002] At present, the steel structure roof construction is in the form of steel structure light roof panels, which not only achieves lightness and multi-function, but also highlights the safety and durability of the structure.

[0003] The construction method is to determine the size of the roof panel according to the site and divide and layout the entire roof. Generally, it is composed of 1.5m*7.5m standard panels and special-shaped panels of other sizes. When installing, use a car crane to hoist it, and push it from one end of the roof to the other end in sequence. It must not be installed in a disorderly manner. After each panel is in place, it must be welded to the steel structure beam in time.

[0004] The above construction method can only transport the lightweight roof panels to the edge of the roof where they have been installed, and workers move them to the middle area of ​​the roof for installation and fixation. This operation method greatly reduces the construction efficiency and has poor economic benefits. In addition, workers are required to operate on the steel structure beams of the roof during construction, which is very dangerous and is prone to safety accidents such as falling from heights.

[0005] In the prior art, the invention application with publication number CN111910853A discloses an auxiliary installation tool for lightweight roof panels of steel structures and its operation method; a track and a steel frame, the track length is 4 to 12 meters, the width matches the roof beam, the steel frame is formed by connecting a long side frame and a wide side frame by bolts, the bottom of the long side frame or the wide side frame is provided with a frame foot, the bottom of the frame foot is connected to a wheel and a limit device, and the bottom of the long side frame is provided with a plurality of hanging points of a hand chain hoist; the installer uses the installation tool to complete the movement and installation of lightweight roof panels on the steel structure roof. Those skilled in the art believe that the auxiliary installation tool has the following disadvantages:

[0006] 1. The roof panels are hung by several hand hoists directly below the steel frame. When installing the roof panels, workers still have to work on the edge, and the safety of use is not guaranteed;

[0007] 2. When hoisting the roof panels at the edge of the roof, the steel frame needs to be put on the outside of the stacked roof panels as a whole. If the roof panels are not stacked regularly, the steel frame cannot be put in, which increases the difficulty of hoisting the roof panels to the roof by the crane;

[0008] 3. The manual states that the width of the track matches the roof beams, and the steel frame is supported on the track by wheels at the bottom; the width of the roof panel is slightly smaller than the spacing of the roof beams; combined Figure 1, the width of the steel frame is equal to the width of the track, and the roof panel needs to be hoisted in the steel frame. Obviously, there will be interference between the roof panel and the steel frame. This technical solution has shortcomings;

[0009] 4. After the installation of the current row of roof panels is completed, the auxiliary installation tools cannot cross over to the next row to continue construction. Summary of the invention

[0010] The purpose of the present invention is to provide a roof panel paving vehicle which does not require workers to work along the edge during roof panel installation, can cross the working track by themselves, reduces the time occupied by hoisting machinery, and has a practical solution.

[0011] In order to achieve the above-mentioned object, the present invention provides a large-area steel structure roof panel paving vehicle, comprising a main frame and a sliding boom; two train wheels are distributed at the bottom of the main frame, and the two train wheels can be clamped on the protruding edges of the paved roof panels, so that the main frame moves on the steel structure roof with the paved roof panels as tracks;

[0012] The sliding boom is slidably connected to the main frame in parallel with the track. The sliding boom can be extended in two directions relative to the main frame. The extension length is greater than the length of a single roof panel. A track plate passage space is arranged below the sliding boom on the main frame. A lifting tool that can slide along the arm length is hung on the sliding boom.

[0013] The main frame moves to the track plate stacking area, the sliding boom extends backward, the lifting equipment moves to the top of the track plate to lift the track plate, the main frame moves to the end of the paved area, the sliding boom extends forward, and the lifting equipment moves to the top of the track plate installation position to lower the track plate.

[0014] Furthermore, two rows of horizontal rollers and two rows of vertical rollers are distributed on the frame at the top of the track plate passage space on the main frame. The two rows of horizontal rollers are spaced apart in the middle, and the shaft ends close to each other are suspended in the air, and the shaft ends far away are connected to the main frame; the two rows of vertical rollers are also spaced apart in the middle and correspond to the horizontal rollers;

[0015] The sliding boom comprises an upper slide rail and a lower slide rail. The top plate of the upper slide rail is supported on two rows of horizontal rollers. The web plate is limited by vertical rollers so that it is centered between the two rows of horizontal rollers. The lifting equipment is assembled on the lower slide rail.

[0016] Furthermore, there is a sprocket at each of the front and rear ends of the same side in the lower slide rail of the sliding boom, and a chain is retained on the front and rear sprockets, the two ends of the chain are at the bottom and are respectively connected to the front and rear of the lifting equipment, and one of the nodes of the chain at the top is connected to the main frame;

[0017] A first torque output unit is installed on the main frame. A window is opened between two rows of horizontal rollers on the main frame to expose the top surface of the sliding arm. The driving wheel in the first torque output unit contacts the top surface of the sliding arm through the window. The driving wheel rotates to push the sliding arm to move, and at the same time the chain pulls the lifting equipment to move in the same direction.

[0018] Furthermore, the lifting equipment includes a winch crane and a roof panel clamp. The winch crane is clamped on the lower slide rail of the sliding boom through its shell, and the shell contacts the lower slide rail through the balls thereon; the roof panel clamp is connected to the cable of the winch crane.

[0019] Further, the roof panel clamp includes a rectangular hanger, the center of the hanger is connected to the cable, and the four corners are each connected to a lock through a rope, and the lengths of the four ropes are equal;

[0020] The lock includes a sleeve, a locking rod and a locking plate. The outer diameter of the sleeve allows it to be inserted into the lifting holes at the four corners of the roof panel. A retaining ring is arranged outside the sleeve to stop the hole. The locking rod is movably inserted in the sleeve with both ends exposed. The top of the locking rod is a hook connected to a rope, and the bottom is connected to a tray with a diameter equal to the outer diameter of the sleeve. The locking plate is hinged at the root of the locking rod. The locking rod is sunken to form a groove for accommodating the locking plate. A pull rope is connected between the locking plate and the sleeve. After the lock is lowered into the lifting hole, the locking plate is unfolded and backed against the tray. When the locking rod is lifted, the locking plate is stopped at the bottom surface of the roof panel. The locking rod falls, and when the sleeve is lifted, the pull rope first pulls the locking plate into the locking rod groove and then lifts out the locking rod.

[0021] Furthermore, a laterally expanded auxiliary frame is fixed outside the shell of the winch crane, and the auxiliary frame has two straight sides respectively aligned with the two adjacent sides of the hanger. A plate chain is installed on each straight side, and the rotating shaft of the plate chain is parallel to the straight side. The hanger is provided with slots corresponding to the two plate chains respectively, and the last chain plate of the plate chain can be plugged in and out of the slots.

[0022] Furthermore, the wheel includes a wheel body and a convex edge outside the wheel body. The wheel body rolls on the top surface of the roof panel, and the convex edge stops at the side of the roof panel to prevent the wheel body from deviating.

[0023] Furthermore, there are four wheels at the bottom of the main frame, two of which are independent and coaxial, and a driven gear is installed on the shaft. The driving gear of the second torque output unit installed on the main frame is meshed with the driven gear.

[0024] Further, it also includes a sub-frame which is sleeved inside the main frame from the bottom of the main frame. A vertical guiding mechanism and a jacking mechanism are connected between the sub-frame and the main frame. Rollers are distributed at the bottom of the sub-frame, and the rolling direction of the rollers is perpendicular to the rotation direction of the wheels. When the main frame moves along the current track, the sub-frame is received inside the main frame and the rollers are suspended. When the main frame crosses the track, the jacking mechanism lifts the main frame until the wheels are higher than the roof panel, and the rollers roll on the roof panel and the main frame is laterally moved to the next row of roof panels.

[0025] Further, the cross-section of the sliding jib is in the shape of a "king".

[0026] Compared with the prior art, the advantages of the present invention are as follows:

[0027] A large-area steel structure roof panel paving vehicle provided by the present invention enables installers to easily complete the movement and installation operations of lightweight roof panels on the steel structure roof by means of this tool, reduces the use of hoisting machinery, can achieve rapid paving of lightweight roof panels, and improves the installation construction efficiency of roof panels.

[0028] During use, it can ensure that workers always stand on the lightweight roof panels that have been laid during the operation process, minimizing the risk of workers working at the edge as much as possible, greatly improving the safety factor of construction, and solving the problems of potential safety hazards and low paving efficiency existing in current construction.

[0029] The hoisting tool has two levels of strokes. The first-level stroke is carried by the sliding jib for movement, and the second-level stroke is for movement on the sliding jib. The working range of the hoisting tool is wide, and it can reach above the stack of roof panels and above the installation position of roof panels. Moreover, the two levels of strokes use a set of drives, with a clever design, and the two levels of strokes move in the same direction and synchronously.

[0030] The roof panel clamp is convenient for clamping roof panels. Four locks are locked into the lifting holes, and the locking and unlocking processes of the locks are simple. The sub-frame is hidden inside the main frame to achieve cross-track operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the roof panel paving vehicle walking on the roof panel;

[0032] Figure 2 It is a schematic structural diagram of the roof panel paving vehicle;

[0033] Figure 3 It is for Figure 2 the front view;

[0034] Figure 4 It is for Figure 2 the side view;

[0035] Figure 5 It is a schematic structural diagram of the main frame;

[0036] Figure 6 for Figure 5 Bottom view of

[0037] Figure 7 is a structural schematic diagram of a subframe;

[0038] Figure 8 It is a schematic diagram of the structure of the sliding boom and the lifting equipment;

[0039] Fig. 9 is a structural schematic diagram of the hanger;

[0040] Fig.10 It is a schematic diagram of the sliding boom and the sliding of the lifting equipment;

[0041] Fig.11 It is a schematic diagram of the structure of the lock (locking piece is unfolded);

[0042] Fig.12 It is a schematic diagram of the structure of the lock (locking piece is buckled).

[0043] In the figure: 1-main frame; 2-sliding boom; 2.1-upper slide rail; 2.2-lower slide rail; 2.3-sprocket; 2.4-chain; 3-roof panel; 4-roof panel support beam; 5-wheel; 6-lifting equipment; 6.1-winch crane; 6.2-roof panel clamp; 6.3-lock; 6.3.1-sleeve; 6.3.2-lock rod; 6.3.3-lock plate; 6.3.4-tray; 6.4-auxiliary frame; 6.5-plate chain; 6.6-slot; 7-horizontal roller; 8-vertical roller; 9-first torque output unit; 10-driving wheel; 11-driven gear; 12-second torque output unit; 13-sub-frame; 14-lifting mechanism; 15-roller; 16-guide sleeve; 17-guide column; 18-connection between chain and main frame. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] like Figure 1 , Figure 2 , Figure 3 As shown: a large-area steel structure roof panel paving vehicle includes a main frame 1 and a sliding boom 2; the main frame 1 is a frame body welded from steel sections, which is narrow at the bottom and wide at the top, with a track plate channel formed in the middle; the sliding boom 2 is a steel section beam.

[0046] Two train wheels 5 are distributed at the bottom of the main frame 1, a total of four, the two wheels 5 are independent, the two wheels 5 are coaxial, and a driven gear 11 is installed on the shaft. The driving gear 13 of the second torque output unit 12 installed on the main frame 1 is meshed with the driven gear 11. The driving gear 13 and the driven gear 11 transmit the torque output by the second torque output unit 12 to the wheel 5, so that the main frame 1 moves along the roof panel by itself.

[0047] The two train wheels 5 can be clamped on the protruding edges of the paved roof panels, so that the main frame 1 can move on the steel structure roof with the paved roof panels as tracks; the wheels 5 include a wheel body and a convex edge on the outside of the wheel body, the wheel body rolls on the top surface of the roof panel, and the convex edge stops at the side of the roof panel to prevent the wheel body from deviating.

[0048] The sliding boom 2 is parallel to the track and slidably connected to the main frame 1. The sliding boom 2 is centered relative to the roof panel. The sliding boom 2 can be extended in both directions relative to the main frame 1. The extended length is greater than the length of a single roof panel, which meets the requirements of vertically lifting the horizontal roof panel. The sliding boom 2 is installed at the top of the track plate channel, and a lifting device 6 that can slide along its arm length is hung on the sliding boom 2. In order to prevent the main frame 1 from tipping over when the sliding boom 2 is extended and the roof panel is lifted, a counterweight is arranged on the main frame 1. The counterweight adopts a detachable installation method and is installed at the bottom of the track plate channel. The counterweight can be a steel pad.

[0049] The main frame 1 moves to the track plate stacking position, the sliding boom 2 extends backward, the lifting equipment 6 moves to the top of the track plate to lift the track plate, the main frame 1 moves to the end of the paved area, the sliding boom 2 extends forward, the lifting equipment 6 moves to the top of the track plate installation position to lower the track plate. The entire process is performed on the installed track plate, which is highly safe.

[0050] like Figure 4 , Figure 5 , Figure 6 As shown: two rows of horizontal rollers 7 and two rows of vertical rollers 8 are distributed on the frame at the top of the track plate passage space on the main frame 1. The two rows of horizontal rollers 7 are spaced in the middle, and the adjacent shaft ends are suspended and the distant shaft ends are connected to the main frame 1; the two rows of vertical rollers 8 are also spaced in the middle and correspond to the horizontal rollers 7.

[0051] Specifically, the horizontal rollers 7 and the vertical rollers 8 are fully spread along the length of the main frame 1 , and the horizontal rollers 7 and the vertical rollers 8 are alternately arranged one by one.

[0052] The cross-section of the sliding jib 2 is in the shape of a "king" character; the sliding jib 2 includes an upper slide rail 2.1 and a lower slide rail 2.2. The top plate of the upper slide rail 2.1 is supported on two rows of horizontal rollers 7, and the web is limited by vertical rollers 8 to be centered between the two rows of horizontal rollers 7. In this way, the sliding jib 2 moves more smoothly, and the lifting appliance 6 is assembled on the lower slide rail 2.2. Both ends of the upper slide rail 2.1 are closed to prevent the sliding jib 2 from slipping off the main frame 1.

[0053] As Figure 8 , Fig.10 shown: The abdominal cavity of the lower slide rail 2.2 of the sliding jib 2 is widened. There is a sprocket 2.3 at each of the front and rear ends on the same side inside the lower slide rail 2.2. A chain 2.4 is held on the front and rear sprockets 2.3. The two ends of the chain 2.4 are respectively connected to the front and rear parts of the lifting appliance 6 at the bottom, and one of the nodes of the chain 2.4 at the top is connected to the main frame 1. In this way, when the sliding jib 2 moves back and forth relative to the main frame 1, since one node of the chain 2.4 is connected to the main frame 1, the connection point 18 between the chain and the main frame is fixed relative to the main frame 1. The movement of the sliding jib 2 is converted into the reverse pulling of the chain 2.4, that is, the part of the chain 2.4 above the sprocket 2.3 moves in the opposite direction relative to the sliding jib 2, and the part of the chain 2.4 below the sprocket 2.3 moves in the same direction as the sliding jib 2, pulling the lifting appliance 6 to move in the same direction as the sliding jib 2.

[0054] Specifically, the connection position of the chain 2.4 and the main frame 1 is selected according to the length of the sliding jib 2 and the preset moving distance of the lifting appliance 6. In this embodiment, since the sliding jib 2 moves bidirectionally, the connection point 18 between the chain and the main frame is located at the 1 / 2 length of the chain 2.4 and at the midpoint of the length of the main frame 1.

[0055] A first torque output unit 9 is installed on the main frame 1. A window is opened on the main frame 1 between the two rows of horizontal rollers 7 to expose the top surface of the sliding jib 2. The driving wheel 10 in the first torque output unit 9 contacts the top surface of the sliding jib 2 through the window. The driving wheel 10 rotates to push the sliding jib 2 to move, and at the same time, the chain 2.4 pulls the lifting appliance 6 to move in the same direction. The driving wheel 10 uses a rubber wheel with patterns. Both the first torque output unit 9 and the second torque output unit 12 are motors with reducers, and the roof panel paving vehicle is powered by a towed cable or by a storage battery, and the storage battery can also be used as a counterweight.

[0056] As Figure 8As shown, the lifting equipment 6 includes a hoist crane 6.1 and a roof panel clamp 6.2. The hoist crane 6.1 is clamped on the lower slide rail 2.2 of the sliding arm 2 through its shell, and the shell contacts the lower slide rail 2.2 through the balls on it to reduce the movement resistance; the roof panel clamp 6.2 is connected to the cable of the hoist crane 6.1. The roof panel clamp 6.2 can swing, and when the roof panels are not stacked evenly, the roof panel clamp 6.2 can be twisted to align.

[0057] The roof panel clamp 6.2 comprises a rectangular hanger, the center of which is connected to a cable, and four corners of the hanger are connected to a lock 6.3 through ropes, and the lengths of the four ropes are equal.

[0058] The lock 6.3 includes a sleeve 6.3.1, a locking rod 6.3.2 and a locking plate 6.3.3. The outer diameter of the sleeve 6.3.1 allows it to be inserted into the lifting holes at the four corners of the roof panel (the roof panel has lifting holes when it leaves the factory). A retaining ring is arranged outside the sleeve 6.3.1 to stop at the hole. The locking rod 6.3.2 is movably inserted into the sleeve 6.3.1 with both ends exposed. The top of the locking rod 6.3.2 is a hook connected to a rope, and the bottom is connected to a tray 6.3.4 with a diameter equal to the outer diameter of the sleeve. The locking plate 6.3.3 is hinged at the root of the locking rod 6.3.2. The rod 6.3.2 is sunken to form a groove for accommodating the locking piece 6.3.3. A pull rope is connected between the locking piece 6.3.3 and the sleeve 6.3.1. After the lock 6.3 is lowered into the lifting hole, the locking rod 6.3.2 is allowed to fall freely. After the locking piece 6.3.3 is unfolded, it leans against the tray 6.3.4. When the locking rod 6.3.2 is lifted, the locking piece 6.3.3 stops at the bottom surface of the roof panel, and the roof panel can be lifted. The locking rod 6.3.2 falls down. When the sleeve 6.3.1 is lifted, the pull rope first pulls the locking piece 6.3.3 into the locking rod groove and then lifts out the locking rod 6.3.3.

[0059] Specifically, the sleeve 6.3.1 is an oblate tube, the locking rod 6.3.2 is an oblate rod that fits therewith, and the locking piece 6.3.3 is connected to the plane side of the locking rod 6.3.2. This design increases the width of the locking piece 6.3.3, increases the contact area between the locking piece 6.3.3 and the bottom surface of the roof panel, and prevents leaving indentations on the roof panel.

[0060] The roof panel clamp 6.2 needs to swing when clamping the roof panel, and its swing should be limited during the movement of the lifting device 6 to prevent the roof panel from hitting the main frame 1. The design is as follows: a transversely expanded auxiliary frame 6.4 is fixed outside the shell of the winch crane 6.1, and the auxiliary frame 6.4 has two straight edges respectively aligned with the two adjacent edges of the hanger, and a plate chain 6.5 is installed on each straight edge. The first section of the plate chain 6.5 is fixed on the auxiliary frame 6.4, and the rotating shaft of the plate chain 6.5 is parallel to the straight edge. The hanger is provided with slots 6.6 corresponding to the two plate chains 6.5, and the last section of the plate chain 6.5 is pluggable and connected to the slots. When the roof panel clamp 6.2 clamps the roof panel, the plate chain 6.5 is pulled out from the slot 6.6, and the lateral swing of the roof panel clamp 6.2 is not limited; after the roof panel is successfully lifted, the plate chain 6.5 is inserted into the corresponding slot 6.6, and the lateral swing of the roof panel clamp 6.2 is limited. Since the sliding boom 2 is centered relative to the installed roof panel, that is, the roof panel clamp 6.2 is also centered relative to the installed roof panel, the roof panel being hoisted is aligned with the installed roof panel, and the roof panel can be directly put down after being moved into place.

[0061] In order to realize the cross-track operation of the roof panel paving vehicle, it also includes a sub-frame 13, which is sleeved into the main frame 1 from the bottom of the main frame 1, and a vertical guide mechanism and a lifting mechanism 14 are connected between the sub-frame 13 and the main frame 1. Rollers 15 are distributed at the bottom of the sub-frame 13, and the rolling direction of the rollers 15 is perpendicular to the rotation direction of the wheels 5; when the main frame 1 moves along the current track, the sub-frame 13 is stored in the main frame 1, and the rollers 15 are suspended in the air; when the main frame 1 crosses the track, the lifting mechanism 14 lifts the main frame 1 until the wheels 5 are higher than the roof panels, and the rollers 15 roll the main frame 1 on the roof panels to move horizontally to the next row of roof panels.

[0062] Specifically, the lifting mechanism 14 is a manual hydraulic cylinder, a guide sleeve 16 is welded on the main frame 1, a guide post 17 is welded on the auxiliary frame 13, and the guide post 17 and the guide sleeve 16 are slidably assembled to form a vertical guide mechanism.

[0063] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A large-area steel structure roof panel paving vehicle, characterized by: The invention comprises a main frame (1) and a sliding boom (2); two wheels (5) are distributed at the bottom of the main frame (1); the two wheels (5) can be clamped on the protruding edges of the paved roof panels, so that the main frame (1) moves on the steel structure roof with the paved roof panels as tracks; The sliding arm (2) is slidably connected to the main frame (1) in parallel with the track. The sliding arm (2) can be extended in two directions relative to the main frame (1). The extended length is greater than the length of a single roof panel. A track plate passage space is arranged below the sliding arm (2) on the main frame (1). A lifting device (6) that can slide along the length of the arm is suspended on the sliding arm (2). The main frame (1) moves to the track plate stacking position, the sliding arm (2) extends backward, the lifting device (6) moves to the top of the track plate to lift the track plate, the main frame (1) moves to the end of the paved area, the sliding arm (2) extends forward, and the lifting device (6) moves to the top of the track plate installation position to lower the track plate.

2. A large-area steel structure roof panel paving vehicle according to claim 1, characterized in that: Two rows of horizontal rollers (7) and two rows of vertical rollers (8) are distributed on the frame body at the top of the track plate passage space of the main frame (1). The two rows of horizontal rollers (7) are spaced apart in the middle, and the adjacent shaft ends are suspended in the air, while the distant shaft ends are connected to the main frame (1); the two rows of vertical rollers (8) are also spaced apart in the middle and correspond to the horizontal rollers (7); The sliding boom (2) comprises an upper slide rail (2.1) and a lower slide rail (2.2), the top plate of the upper slide rail (2.1) is supported on two rows of horizontal rollers (7), the web plate is limited by a vertical roller (8) so that it is centered between the two rows of horizontal rollers (7), and the lifting equipment (6) is assembled on the lower slide rail (2.2).

3. A large-area steel structure roof panel paving vehicle according to claim 2, characterized in that: A sprocket (2.3) is provided at each of the front and rear ends of the same side of the lower slide rail (2.2) of the sliding boom (2), and a chain (2.4) is retained on the front and rear sprockets (2.3). The two ends of the chain (2.4) are connected to the front and rear of the lifting device (6) at the bottom, respectively, and one of the nodes of the chain (2.4) at the top is connected to the main frame (1); A first torque output unit (9) is installed on the main frame (1). A window is opened between two rows of horizontal rollers (7) on the main frame (1) to expose the top surface of the sliding arm (2). The driving wheel (10) in the first torque output unit (9) contacts the top surface of the sliding arm (2) through the window. The driving wheel (10) rotates to push the sliding arm (2) to move, and at the same time, the chain (2.4) pulls the lifting device (6) to move in the same direction.

4. A large-area steel structure roof panel paving vehicle according to claim 3, characterized in that: The lifting equipment (6) comprises a winch crane (6.1) and a roof panel clamp (6.2); the winch crane (6.1) is clamped on the lower slide rail (2.2) of the sliding boom (2) through its shell, and the shell contacts the lower slide rail (2.2) through the balls thereon; the roof panel clamp (6.2) is connected to the cable of the winch crane (6.1).

5. A large-area steel structure roof panel paving vehicle according to claim 4, characterized in that: The roof panel clamp (6.2) comprises a rectangular hanger, the center of which is connected to a cable, and four corners of which are connected to a lock (6.3) via ropes, and the lengths of the four ropes are equal; The locking device (6.3) includes a sleeve (6.3.1), a locking rod (6.3.2) and a locking piece (6.3.3). The outer diameter of the sleeve (6.3.1) allows it to be inserted into the lifting holes at the four corners of the roof panel. A retaining ring is provided outside the sleeve (6.3.1) to stop at the orifice of the hole. The locking rod (6.3.2) is movably inserted into the sleeve (6.3.1) with both ends exposed. The top of the locking rod (6.3.2) is a hook connected to a rope, and the bottom is connected to a tray (6.3.4) with a diameter equal to the outer diameter of the sleeve. The locking piece (6.3.3) is hinged at the root of the locking rod (6.3.2). A groove for accommodating the locking piece (6.3.3) is formed by the indentation of the locking rod (6.3.2). A pull rope is connected between the locking piece (6.3.3) and the sleeve (6.3.1). After the locking device (6.3) is lowered into the lifting hole, the locking piece (6.3.3) expands and leans against the tray (6.3.4). When the locking rod (6.3.2) is lifted, the locking piece (6.3.3) stops at the bottom surface of the roof panel. When the locking rod (6.3.2) drops and the sleeve (6.3.1) is lifted, the pull rope first pulls the locking piece (6.3.3) into the groove of the locking rod and then the locking rod (6.3.3) is lifted out.

6. A large-area steel structure roof panel paving vehicle according to claim 5, characterized in that: An auxiliary frame (6.4) that expands outward horizontally is fixed outside the housing of the winch crane (6.1). The auxiliary frame (6.4) has two straight edges that are respectively aligned with two adjacent edges of the hanger. A plate chain (6.5) is installed on each straight edge. The rotating shaft of the plate chain (6.5) is parallel to the straight edge where it is located. Slots (6.6) corresponding to the two plate chains (6.5) are provided on the hanger. The last link plate of the plate chain (6.5) can be inserted and removed from the slots.

7. A large-area steel structure roof panel paving vehicle according to claim 1, characterized in that: The described wheel (5) includes a wheel body and a convex edge on the outside of the wheel body. The wheel body rolls on the top surface of the roof panel, and the convex edge stops at the side surface of the roof panel to prevent the wheel body from deviating.

8. The large-area steel structure roof panel paving vehicle according to claim 1, characterized in that: There are four wheels (5) at the bottom of the main frame (1). Two wheels (5) are independent, and two wheels (5) are coaxial. A driven gear (11) is installed on the shaft. The driving gear (13) of the second torque output unit (12) installed on the main frame (1) meshes with the driven gear (11).

9. A large-area steel structure roof panel paving vehicle according to claim 7, characterized in that: It also includes a sub-frame (13). The sub-frame (13) is sleeved inside the main frame (1) from the bottom of the main frame (1). A vertical guiding mechanism and a jacking mechanism (14) are connected between the sub-frame (13) and the main frame (1). Rollers (15) are distributed at the bottom of the sub-frame (13). The rolling direction of the rollers (15) is perpendicular to the rotating direction of the wheels (5). When the main frame (1) moves along the current track, the sub-frame (13) is received inside the main frame (1) and the rollers (15) are suspended. When the main frame (1) crosses the track, the jacking mechanism (14) lifts the main frame (1) until the wheels (5) are higher than the roof panel, and the rollers (15) roll on the roof panel and the main frame (1) is horizontally moved to the next row of roof panels.

10. A large-area steel structure roof panel paving vehicle according to claim 2, characterized in that: The cross-section of the sliding jib (2) is in the shape of a "king".

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