Roadbed plate intelligent transfer vehicle for construction

Abstract

The application discloses a kind of intelligent transfer vehicles for construction roadbed plate, it is related to building construction equipment technical field, including two transfer crawler vehicles;Four self-locking connection mechanisms are respectively fixedly installed in the inner side vertical surface of two described transfer crawler vehicles;Two rigid synchronous mechanisms are respectively detachably assembled between two groups of corresponding described self-locking connection mechanisms;The application relies on transfer crawler vehicle, self-locking connection mechanism, rigid synchronous mechanism, front fork mechanism and roadbed plate body to cooperate, in the process of two transfer crawler vehicles, rigid synchronous mechanism constrains both sides relative position and movement posture, effectively avoids the deflection and torsion of roadbed plate, so as to eliminate the security risks such as connection piece separation and roadbed plate falling, at the same time, rigid synchronous mechanism disperses the overall load of equipment, prevents long-term overload damage of parts, greatly improves the operation safety and equipment service life.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, and more specifically to an intelligent transfer vehicle for roadbed plates used in construction. Background Technology

[0002] Roadbed panels, made of steel plates, steel box-shaped components, hardwood slabs, high-density polyethylene boards, etc., are temporary load-bearing pads laid on soft, muddy ground to distribute the load of heavy vehicles and equipment, increase the ground contact area, and prevent the ground from collapsing and vehicles from getting stuck. They are mostly used in construction sites, oil fields, earthwork, drilling and other engineering sites to build temporary access roads and work platforms. After one work is completed, the roadbed panels need to be transported and laid to the next construction area. Unlike concrete pavement, which needs to be cured and shaped at one time, roadbed panels can be reused, thereby greatly reducing material consumption and site handling costs.

[0003] When two transfer vehicles lift the roadbed plate from both ends for transport, it is difficult to synchronize the movements of the two vehicles. In addition, the roadbed plate is long and heavy, which makes it easy for the plate to deflect, be pulled at an angle, and be twisted. This can cause the end pins and hooks to detach from each other, leading to the risk of the roadbed plate falling. It can also cause the mechanism on one side to bear a load that exceeds the design standard, resulting in overload damage to the parts and seriously affecting the safety of operation and the service life of the equipment. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent transfer vehicle for roadbed plates used in construction, so as to solve the problems of the plates twisting and detaching and the mechanism being damaged by overload on one side due to asynchronous operation when two transfer vehicles are used to transport roadbed plates in a coordinated manner.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent transfer vehicle for roadbed plates used in construction, comprising two transfer tracked vehicles;

[0006] Four self-locking connection mechanisms are respectively fixedly installed on both sides of the inner facade of the two tracked transfer vehicles facing each other;

[0007] Two rigid synchronization mechanisms are detachably assembled between two sets of corresponding self-locking connection mechanisms;

[0008] Two front fork mechanisms are respectively fixedly installed on the top of the two transfer tracked vehicles on opposite sides;

[0009] The roadbed body is clamped and installed between the two front fork mechanisms;

[0010] The rigid synchronization mechanism includes a telescopic sleeve, two guide limit frames, positive and negative screws, an adjusting worm wheel, two synchronous telescopic connecting rods, and an adjusting worm. The two guide limit frames are fixedly installed on the left and right sides of the interior of the telescopic sleeve cavity, respectively. The positive and negative screws are mounted between the opposite end faces of the two guide limit frames via bearings. The adjusting worm wheel is fixedly fitted on the middle of the outer wall of the positive and negative screws. The two synchronous telescopic connecting rods are threaded to both ends of the positive and negative screws, and the synchronous telescopic connecting rods are movably hinged to the corresponding self-locking connection mechanism. The adjusting worm is installed between the inner walls of the telescopic sleeve via bearings, and the adjusting worm meshes with the adjusting worm wheel.

[0011] Furthermore, the synchronous telescopic linkage includes a telescopic rod body, a threaded cylinder, two limiting blocks, and a pin bushing. The telescopic rod body is movably inserted into the telescopic sleeve and slides in cooperation with the corresponding guide limiting frame. The threaded cylinder is embedded in the middle of the inner end of the telescopic rod body and is threaded in cooperation with the positive and negative screws. The two limiting blocks are respectively fixedly installed on the outer walls of the inner end of the telescopic rod body near the end, which are used to limit the telescopic stroke of the telescopic rod body. The pin bushing is embedded in the outer wall of the outer end of the telescopic rod body near the end.

[0012] Furthermore, the rigid synchronization mechanism also includes four limiting grooves and an adjusting handle. The four limiting grooves are respectively opened on the inner walls of the two guide limiting frames on both sides, and the limiting grooves slide with the corresponding limiting blocks. The adjusting handle is fixedly installed on the outer end of the adjusting worm.

[0013] Furthermore, the self-locking connection mechanism includes a load-bearing mounting base, two self-locking slide rails, a rod connector, an anti-detachment limiting insert, and a insert locking nut. The load-bearing mounting base is fixedly installed at the corresponding position of the transfer tracked vehicle. The two self-locking slide rails are respectively fixedly installed on the upper inner wall and lower inner wall of the load-bearing mounting base. The rod connector is slidably assembled between the two self-locking slide rails. The anti-detachment limiting insert is vertically inserted through the front of the top of the load-bearing mounting base. The insert locking nut is threaded onto the lower side of the outer wall of the anti-detachment limiting insert.

[0014] Furthermore, the self-locking connection mechanism also includes a positioning groove, two first through holes and two second through holes. The positioning groove is formed on the inner wall of the load-bearing mounting base. The two first through holes are respectively formed on the front side of the upper inner wall and the front side of the lower inner wall of the load-bearing mounting base. The two second through holes are respectively formed on the front side of the top of the two self-locking slide rails.

[0015] Furthermore, the rod connector includes a self-locking slider, a spring positioning pin, a double-ear hinge support, and a connecting pin. The self-locking slider is slidably assembled in the guide space formed by the load-bearing mounting base and the two self-locking slide rails. The spring positioning pin is embedded in the inner end of the self-locking slider. The double-ear hinge support is fixedly set in the outer end of the self-locking slider. The connecting pin passes between the inner walls of the two sides of the double-ear hinge support and is movably hinged to the synchronous telescopic connecting rod.

[0016] Furthermore, the guide limiting frame is configured as a U-shaped structure, the synchronous telescopic link is configured as an I-shaped structure, and the synchronous telescopic link is slidably engaged with the guide limiting frame.

[0017] Furthermore, the length of the telescopic rod is greater than the length of the threaded cylinder, the length of the threaded cylinder is equal to half the length of the forward and reverse screws, and the pin bushing is made of wear-resistant material.

[0018] Furthermore, the load-bearing mounting base is welded and installed on the box of the transfer tracked vehicle, the self-locking slide rail is configured as a wedge-shaped structure, the anti-detachment limiting insert is configured as an L-shaped structure, and the column through the first through hole and the second through hole of the anti-detachment limiting insert is configured as a D-shaped structure.

[0019] Furthermore, the self-locking slider and the double-ear hinge support are integrally formed, and the self-locking slider is a dovetail structure. The spring positioning pin is a cylindrical telescopic pin with a built-in compression spring, and the spring positioning pin is limited to the positioning groove.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) The present invention relies on the cooperation of the transfer tracked vehicle, the self-locking connection mechanism, the rigid synchronization mechanism, the front fork mechanism and the road plate body. During the movement of the two transfer tracked vehicles, the rigid synchronization mechanism constrains the relative position and movement posture of the two sides, effectively preventing the road plate from deflecting or twisting, thereby eliminating safety hazards such as the disconnection of the connecting parts and the falling of the road plate. At the same time, the rigid synchronization mechanism disperses the overall load of the equipment, prevents the parts from being overloaded and damaged for a long time, and greatly improves the safety of operation and the service life of the equipment.

[0022] (2) The self-locking connection mechanism of the present invention relies on the linkage and cooperation of the internal components to achieve rapid assembly and reliable locking. The assembly process is accurately positioned. The mechanism adopts a wedge-shaped self-locking structure. When it is subjected to the tension transmitted by the rigid synchronous mechanism, the positive pressure generated by the wedge surface increases with the increase of the tension, thereby achieving the self-locking effect of tightening as it is pulled. The connection stability is enhanced with the increase of the load, and it can stably bear the force transmitted by the rigid synchronous mechanism, ensuring the continuous and stable operation of the entire linkage structure.

[0023] (3) The present invention uses a transfer tracked vehicle in conjunction with a front fork mechanism to work together. The overall height of the equipment is low, and it can directly pass under large equipment such as tracked cranes to carry out operations without having to go far around, which significantly improves the efficiency of roadbed transfer. At the same time, the front fork mechanism can clamp and lock the roadbed body, effectively constraining the roadbed posture throughout the transfer process and effectively reducing the probability of the roadbed slipping. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of a transfer tracked vehicle structure without a rigid synchronization mechanism is provided for an embodiment of the present invention;

[0027] Figure 3 An assembly diagram of the self-locking connection mechanism and the rigid synchronization mechanism is provided for embodiments of the present invention;

[0028] Figure 4 A structural cross-sectional view of the rigid synchronization mechanism is provided for embodiments of the present invention;

[0029] Figure 5 An exploded view of the rigid synchronization mechanism is provided for an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of the synchronous telescopic linkage is provided for embodiments of the present invention;

[0031] Figure 7 A schematic diagram of the self-locking connection mechanism is provided for embodiments of the present invention;

[0032] Figure 8 An exploded view of the self-locking connection mechanism is provided for an embodiment of the present invention;

[0033] Figure 9 A schematic diagram of a single transfer component is provided for an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Transfer tracked vehicle; 2. Self-locking connection mechanism; 3. Rigid synchronization mechanism; 4. Front fork mechanism; 5. Roadbed plate body; 21. Load-bearing mounting seat; 22. Self-locking slide rail; 23. Rod body connector; 24. Anti-detachment limiting insert; 25. Insert locking nut; 26. Positioning groove; 27. First through hole; 28. Second through hole; 231. Self-locking slider; 232. Spring positioning pin; 233. Double-ear hinge support; 234. Connecting pin; 31. Telescopic sleeve; 32. Guide limiting frame; 33. Positive and negative screws; 34. Adjusting worm gear; 35. Synchronous telescopic connecting rod; 36. Adjusting worm; 37. Limiting groove; 38. Adjusting crank; 351. Telescopic rod body; 352. Threaded cylinder; 353. Limiting block; 354. Pin bushing. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] As attached Figure 1 To be continued Figure 9 As shown:

[0038] Example 1:

[0039] This invention provides an intelligent transfer vehicle for roadbed plates used in construction, comprising two transfer tracked vehicles 1. The device is equipped with an intelligent control system, which can remotely or locally precisely control the start, stop, speed and direction of travel of the two transfer tracked vehicles 1, so as to realize the cooperative driving of the two vehicles.

[0040] Four self-locking connection mechanisms 2 are fixedly installed on both sides of the inner facade of the two transfer tracked vehicles 1 facing each other, and are used to bear the force transmitted by the rigid synchronization mechanism 3.

[0041] Two rigid synchronization mechanisms 3 are detachably assembled between two sets of corresponding self-locking connection mechanisms 2. They rely on mechanical linkage to constrain the relative positions of the two transfer tracked vehicles 1, and assist the intelligent system in realizing the synchronous movement of the two vehicles.

[0042] Two front fork mechanisms 4 are fixedly installed on the top of the two transfer tracked vehicles 1 facing each other. The front fork mechanisms 4 are connected to the intelligent control circuit and can receive control commands to complete clamping, lifting and lowering actions, and automatically complete the picking and placing of the road plate.

[0043] The roadbed body 5 is clamped and installed between two front fork mechanisms 4. With the dual protection of mechanical structure and intelligent control, it maintains a stable posture throughout the process and avoids displacement during transportation.

[0044] The rigid synchronization mechanism 3 includes a telescopic sleeve 31, two guide limit frames 32, positive and negative screws 33, an adjusting worm wheel 34, two synchronous telescopic connecting rods 35, and an adjusting worm 36. The two guide limit frames 32 are fixedly installed on the left and right sides of the cavity of the telescopic sleeve 31, respectively. The positive and negative screws 33 are mounted between the opposite end faces of the two guide limit frames 32 through bearings. The adjusting worm wheel 34 is fixedly fitted in the middle of the outer wall of the positive and negative screws 33. The two synchronous telescopic connecting rods 35 are threaded to the two ends of the positive and negative screws 33, and the synchronous telescopic connecting rods 35 are movably hinged to the corresponding self-locking connection mechanism 2. The adjusting worm 36 is installed between the inner walls of the telescopic sleeve 31 through bearings, and the adjusting worm 36 meshes with the adjusting worm wheel 34.

[0045] The synchronous telescopic linkage 35 includes a telescopic rod body 351, a threaded cylinder 352, two limiting blocks 353, and a pin bushing 354. The telescopic rod body 351 is movably inserted into the telescopic sleeve 31 and slides in cooperation with the corresponding guide limiting frame 32. The threaded cylinder 352 is embedded in the middle of the inner end of the telescopic rod body 351 and is threaded in cooperation with the positive and negative screws 33. The two limiting blocks 353 are respectively fixedly installed on the outer walls of the inner end of the telescopic rod body 351 near the end, which are used to limit the telescopic stroke of the telescopic rod body 351. The pin bushing 354 is embedded in the outer wall of the outer end of the telescopic rod body 351 near the end.

[0046] The rigid synchronization mechanism 3 also includes four limiting grooves 37 and an adjusting handle 38. The four limiting grooves 37 are respectively opened on the inner walls of the two guide limiting frames 32 on both sides, and the limiting grooves 37 slide with the corresponding limiting blocks 353. The adjusting handle 38 is fixedly installed on the outer end of the adjusting worm 36.

[0047] The guide limit frame 32 is set as a U-shaped structure, and the synchronous telescopic connecting rod 35 is set as an I-shaped structure. The synchronous telescopic connecting rod 35 and the guide limit frame 32 slide together, and the irregular structures are interlocked to further improve the sliding guidance effect and the overall structural strength.

[0048] The length of the telescopic rod 351 is greater than the length of the threaded cylinder 352. The reasonable size ratio ensures sufficient thread engagement length, uniform transmission force, and reduces the likelihood of thread stripping. The length of the threaded cylinder 352 is equal to half the length of the positive and negative screws 33, which can avoid interference between the thread structure and the assembly of the pin bushing 354 and the telescopic rod 351. The pin bushing 354 is made of wear-resistant material, which is suitable for high-frequency reciprocating motion scenarios and greatly improves the wear resistance of the hinge position.

[0049] Working principle: Upon arrival at the material picking position, the operator issues a work command through the intelligent control system. The system automatically sets the driving parameters of the two transfer tracked vehicles 1 according to the on-site working conditions, and synchronously controls the front fork mechanism 4 to complete the attitude calibration, so that the front fork mechanism 4 inserts into the underside of the roadbed body 5 and presses and locks the roadbed body 5. Then, the operator drives the adjusting worm 36 to rotate by adjusting the crank handle 38. The adjusting worm 36 drives the adjusting worm wheel 34 that meshes with it to rotate, which in turn drives the coaxially set positive and negative screws 33 to rotate. The positive and negative screws 33 form a threaded engagement with the threaded cylinder 352 embedded in the inner end of the telescopic rod body 351. The rotational motion is converted into linear motion by the threaded transmission, which drives the synchronous telescopic connecting rod 35 to make linear motion in opposite directions or in opposite directions. During the movement of the synchronous telescopic connecting rod 35, the limiting block 353 on it slides synchronously along the limiting groove 37 on the guide limiting frame 32, and the travel limit is achieved by the groove structure. To prevent the rods from overtraveling, the overall length of the rigid synchronization mechanism 3 can be precisely adjusted to match the size of the roadbed body 5. After the length adjustment is completed, the synchronous telescopic link 35 is locked and fixed with the self-locking connection mechanism 2 to complete the assembly of the whole machine. After assembly, the front fork mechanism 4 drives the roadbed body 5 to complete the lifting action under intelligent control, and carries out the transfer operation based on the transfer track vehicle 1. During the travel of the transfer track vehicle 1, the intelligent control system collects the travel speed and displacement data of the two vehicles in real time and dynamically corrects the travel deviation. At the same time, the rigid synchronization mechanism 3 constrains the relative position and movement posture of the two transfer track vehicles 1 through mechanical structure. When one vehicle body has a relative displacement tendency due to road bumps or load changes, this tendency will be transmitted to the other vehicle body through the synchronous telescopic link 35, effectively balancing the movement deviation of the two vehicles and ensuring that the two vehicles always maintain the preset distance and parallel posture.

[0050] Example 2:

[0051] This embodiment is basically the same as the previous embodiment, except that the self-locking connection mechanism 2 includes a load-bearing mounting base 21, two self-locking slide rails 22, a rod connector 23, an anti-detachment limiting insert 24, and an insert locking nut 25. The load-bearing mounting base 21 is fixedly installed at the corresponding position of the transfer tracked vehicle 1. The two self-locking slide rails 22 are respectively fixedly installed on the upper inner wall and the lower inner wall of the load-bearing mounting base 21. The rod connector 23 is slidably assembled between the two self-locking slide rails 22. The anti-detachment limiting insert 24 is vertically inserted through the front side of the top of the load-bearing mounting base 21. The insert locking nut 25 is threadedly installed on the lower side of the outer wall of the anti-detachment limiting insert 24.

[0052] The self-locking connection mechanism 2 also includes a positioning groove 26, two first through holes 27 and two second through holes 28. The positioning groove 26 is opened on the inner wall of the load-bearing mounting base 21. The two first through holes 27 are respectively opened on the front side of the upper inner wall and the front side of the lower inner wall of the load-bearing mounting base 21. The two second through holes 28 are respectively opened on the front side of the top of the two self-locking slide rails 22. The second through holes 28 and the first through holes 27 form a coaxial channel to improve the assembly stability of the anti-detachment limiting insert 24.

[0053] The rod connector 23 includes a self-locking slider 231, a spring positioning pin 232, a double-ear hinge support 233, and a connecting pin 234. The self-locking slider 231 is slidably assembled in the guide space formed by the load-bearing mounting base 21 and the two self-locking slide rails 22. The spring positioning pin 232 is embedded in the inner end of the self-locking slider 231. The double-ear hinge support 233 is fixedly set in the outer end of the self-locking slider 231. The connecting pin 234 is inserted between the inner walls of the two sides of the double-ear hinge support 233, and the connecting pin 234 is movably hinged to the synchronous telescopic connecting rod 35. The hinge point between the connecting pin 234 and the telescopic rod 351 in the synchronous telescopic connecting rod 35 is the mounting position of the pin bushing 354.

[0054] The load-bearing mounting base 21 is welded and installed on the box of the transfer tracked vehicle 1. The welding connection method has high strength and vibration resistance, and is suitable for complex working environments on construction sites. The self-locking slide rail 22 is set as a wedge structure. The wedge surface has a self-tightening effect, and the fit is higher during sliding, and it is not easy to loosen. The anti-detachment limiting insert 24 is set as an L-shaped structure, and the column of the anti-detachment limiting insert 24 that passes through the first through hole 27 and the second through hole 28 is set as a D-shaped structure. The irregular column can prevent the insert from rotating itself and ensure that the limiting function is continuously effective.

[0055] The self-locking slider 231 and the double-ear hinge support 233 are designed as an integral molding structure. The integral molding process improves the overall structural strength. The self-locking slider 231 is designed as a dovetail structure, which is compatible with the wedge-shaped self-locking slide rail 22, resulting in stronger guiding and load-bearing capacity. The spring positioning pin 232 is a cylindrical telescopic pin with a built-in compression spring. The spring positioning pin 232 is matched with the positioning groove 26 for limiting. When the self-locking slider 231 is fully pushed against the side wall of the load-bearing mounting base 21, the spring positioning pin 232 automatically pops out, providing a manual locking feel and preventing the self-locking slider 231 from being wedge-tightened before being pushed all the way down.

[0056] Working principle: When assembling the rigid synchronization mechanism 3, the operator aligns the rod connecting piece 23, which is movably hinged to the synchronous telescopic connecting rod 35, with the two self-locking slide rails 22 on the upper and lower inner walls of the load-bearing mounting base 21, and pushes it horizontally from the outside of the vehicle body to the inside. When the self-locking slider 231 slides to the limit position inside the load-bearing mounting base 21, the spring positioning pin 232 embedded in the inner end of the self-locking slider 231 automatically pops out and locks into the positioning groove 26 on the inner wall of the load-bearing mounting base 21. The operator can clearly feel the locking action and hear a prompt sound to determine that the assembly is in place. Then, the operator passes the anti-disengagement limiting insert 24 through the first through hole 27 and the second through hole 28 in sequence, and tightens the insert locking nut 25, aligning the rod from the outside. The body connector 23 is positioned to prevent it from sliding outwards during operation, forming a double anti-detachment guarantee. During the transfer of the equipment track plate body 5, the tension transmitted by the rigid synchronization mechanism 3 acts on the self-locking slider 231 through the connecting pin 234. The self-locking slide rail 22 has a wedge-shaped structure with the narrow end of the wedge facing the inside of the vehicle body. The tension will drive the self-locking slider 231 to wedge further inwards. The positive pressure generated by the wedge contact surface increases synchronously with the increase of tension, thereby achieving a self-locking effect that tightens as it is pulled. The self-locking connection mechanism 2, as the core force-bearing fulcrum, stably receives and transmits the synchronous constraint force applied by the rigid synchronization mechanism 3. It works in conjunction with the transfer track vehicle 1 and the front fork mechanism 4 to ensure that the entire linkage structure operates continuously and stably under heavy load conditions.

[0057] Example 3:

[0058] This embodiment is basically the same as the previous embodiment, except that the transfer tracked vehicle 1 can also be equipped with an autonomous driving module. This module includes an environmental perception unit, a positioning unit, a path planning unit and a motion control unit, which are used to realize autonomous positioning, driving route planning and automatic loading and unloading of roadbed plates. The above modules are integrated into the intelligent control system installed inside the transfer tracked vehicle 1. Their specific structure is not shown separately in the accompanying drawings.

[0059] The environmental perception unit may employ one or more of the following: lidar, visual camera, ultrasonic sensor or millimeter-wave radar, to detect obstacles ahead, ground boundaries, roadbed stacking positions and paved areas in real time.

[0060] The positioning unit calculates the absolute coordinates and attitude of the transfer tracked vehicle 1 in the construction site in real time based on one or more of the following methods: satellite positioning, inertial navigation, or real-time positioning and map building, so as to achieve autonomous positioning.

[0061] The path planning unit automatically plans a collision-free driving path from the current station to the target location on a local grid map or topology map based on the target point for board picking and the target point for board laying, and supports dynamic replanning.

[0062] The motion control unit converts the planned path into the travel speed, steering angle, and start / stop commands of the transfer tracked vehicle 1, and controls the vehicle to drive autonomously along the planned path.

[0063] Working principle: After the front fork mechanism 4 clamps and locks the roadbed plate body 5, the transfer tracked vehicle 1 can autonomously drive to the next slab laying or slab picking position according to the preset task list or the one-time transport command issued by the remote control terminal. After reaching the target point, the front fork mechanism 4 automatically unloads, releases or re-clamps the roadbed plate body 5 without the need for manual remote control or on-board operation. In addition, the two transfer tracked vehicles 1 exchange position, speed and target path information in real time through the vehicle-to-vehicle wireless communication module, and combined with the mechanical synchronization of the rigid synchronization mechanism 3, realize the autonomous driving of the two vehicles in formation, further improving the reliability of collaborative operation. The automatic driving function of the transfer tracked vehicle 1 can be started and stopped independently, and can be switched to manual remote control or local operation mode when needed to adapt to complex and ever-changing construction conditions.

[0064] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent transfer vehicle for roadbed slabs used in construction, characterized in that, include: Two tracked transfer vehicles (1); Four self-locking connection mechanisms (2) are respectively fixedly installed on the inner sides of the two transfer tracked vehicles (1) facing each other; Two rigid synchronization mechanisms (3) are detachably assembled between two sets of corresponding self-locking connection mechanisms (2); Two front fork mechanisms (4) are respectively fixedly installed on the top of the two transfer tracked vehicles (1) on opposite sides; The roadbed body (5) is clamped and installed between the two front fork mechanisms (4); The rigid synchronization mechanism (3) includes a telescopic sleeve (31), two guide limit frames (32), a positive and negative screw (33), an adjusting worm gear (34), two synchronous telescopic connecting rods (35) and an adjusting worm gear (36). The two guide limit frames (32) are respectively fixedly installed on the left and right sides inside the cavity of the telescopic sleeve (31). The positive and negative screw (33) is mounted between the opposite end faces of the two guide limit frames (32) through bearings. The adjusting worm gear (34) is fixedly fitted in the middle of the outer wall of the positive and negative screw (33). The two synchronous telescopic connecting rods (35) respectively form threaded engagement with the two ends of the positive and negative screw (33), and the synchronous telescopic connecting rods (35) are movably hinged with the corresponding self-locking connection mechanism (2). The adjusting worm gear (36) is installed between the inner walls of the telescopic sleeve (31) through bearings, and the adjusting worm gear (36) meshes with the adjusting worm gear (34).

2. The intelligent transfer vehicle for roadbed plates used in construction according to claim 1, characterized in that, The synchronous telescopic linkage (35) includes a telescopic rod body (351), a threaded cylinder (352), two limiting blocks (353), and a pin bushing (354). The telescopic rod body (351) is movably inserted into the telescopic sleeve (31) and slides in cooperation with the corresponding guide limiting frame (32). The threaded cylinder (352) is embedded in the middle of the inner end of the telescopic rod body (351) and is threaded in cooperation with the positive and negative screws (33). The two limiting blocks (353) are respectively fixedly installed on the outer walls of the inner end of the telescopic rod body (351) near the end, for limiting the telescopic stroke of the telescopic rod body (351). The pin bushing (354) is embedded in the outer wall of the outer end of the telescopic rod body (351) near the end.

3. The intelligent transfer vehicle for roadbed plates used in construction according to claim 2, characterized in that, The rigid synchronization mechanism (3) also includes four limiting grooves (37) and an adjusting handle (38). The four limiting grooves (37) are respectively opened on the inner walls of the two guide limiting frames (32) on both sides, and the limiting grooves (37) slide with the corresponding limiting blocks (353). The adjusting handle (38) is fixedly installed on the outer end of the adjusting worm (36).

4. The intelligent transfer vehicle for roadbed plates used in construction according to claim 1, characterized in that, The self-locking connection mechanism (2) includes a load-bearing mounting base (21), two self-locking slide rails (22), a rod connector (23), an anti-detachment limiting insert (24), and a insert locking nut (25). The load-bearing mounting base (21) is fixedly installed at the corresponding position of the transfer tracked vehicle (1). The two self-locking slide rails (22) are respectively fixedly installed on the upper inner wall and the lower inner wall of the load-bearing mounting base (21). The rod connector (23) is slidably assembled between the two self-locking slide rails (22). The anti-detachment limiting insert (24) is vertically inserted through the front side of the top of the load-bearing mounting base (21). The insert locking nut (25) is threadedly installed on the lower side of the outer wall of the anti-detachment limiting insert (24).

5. The intelligent transfer vehicle for roadbed plates used in construction according to claim 4, characterized in that, The self-locking connection mechanism (2) further includes a positioning groove (26), two first through holes (27) and two second through holes (28). The positioning groove (26) is opened on the inner wall of the load-bearing mounting base (21). The two first through holes (27) are respectively opened on the front side of the upper inner wall and the front side of the lower inner wall of the load-bearing mounting base (21). The two second through holes (28) are respectively opened on the front side of the top of the two self-locking slide rails (22).

6. The intelligent transfer vehicle for roadbed plates used in construction according to claim 4, characterized in that, The rod connector (23) includes a self-locking slider (231), a spring positioning pin (232), a double-ear hinge support (233), and a connecting pin (234). The self-locking slider (231) is slidably assembled in the guide space formed by the load-bearing mounting base (21) and two self-locking slide rails (22). The spring positioning pin (232) is embedded in the inner end of the self-locking slider (231). The double-ear hinge support (233) is fixedly set in the outer end of the self-locking slider (231). The connecting pin (234) is inserted between the inner walls of the two sides of the double-ear hinge support (233), and the connecting pin (234) is movably hinged to the synchronous telescopic connecting rod (35).

7. The intelligent transfer vehicle for roadbed plates used in construction according to claim 1, characterized in that, The guide limit frame (32) is configured as a U-shaped structure, and the synchronous telescopic link (35) is configured as an I-shaped structure, and the synchronous telescopic link (35) slides with the guide limit frame (32).

8. The intelligent transfer vehicle for roadbed plates used in construction according to claim 2, characterized in that, The length of the telescopic rod (351) is greater than the length of the threaded cylinder (352), the length of the threaded cylinder (352) is equal to half the length of the positive and negative screws (33), and the pin bushing (354) is made of wear-resistant material.

9. A roadbed plate intelligent transfer vehicle for construction according to claim 5, characterized in that, The load-bearing mounting base (21) is welded and installed on the box of the transfer tracked vehicle (1). The self-locking slide rail (22) is configured as a wedge structure. The anti-detachment limiting insert (24) is configured as an L-shaped structure. The column of the anti-detachment limiting insert (24) that passes through the first through hole (27) and the second through hole (28) is configured as a D-shaped structure.

10. A roadbed plate intelligent transfer vehicle for construction according to claim 6, characterized in that, The self-locking slider (231) and the double-ear hinge support (233) are integrally formed, and the self-locking slider (231) is a dovetail structure. The spring positioning pin (232) is a cylindrical telescopic pin with a built-in compression spring, and the spring positioning pin (232) is limited to the positioning groove (26).

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