Intelligent laying machine for prefabricated track slabs

Abstract

A connecting mechanism is installed on the rear portion of a machine frame and used for being connected with a flat-bed trailer for loading a prefabricated track plate and driving the machine frame and the flat-bed trailer to move synchronously, a horizontal guide rail is horizontally arranged in the advancing direction of the machine frame, and a walking mechanism is installed on the horizontal guide rail and can move in a reciprocating mode along the horizontal guide rail. The lifting tool module is mounted on the walking mechanism, can do lifting motion and transverse rotation relative to the walking mechanism, can penetrate through the rack under the driving of the walking mechanism to lift the prefabricated track plate from the flat-bed trailer, and releases the lifted prefabricated track plate to the position over the pavement to be paved; according to the intelligent laying machine for the prefabricated road plate, the flat-bed trailer loaded with the prefabricated road plate is driven by the driving mechanism to move synchronously with the rack, the prefabricated road plate on the flat-bed trailer is lifted to the position over a road surface to be laid through the lifting tool module to be released, and the lifting tool module has the multiple functions of intelligent leveling, locking, vibrating, lifting and the like; therefore, the requirement for efficient laying of the prefabricated road plate is met, and high-quality intelligent operation is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a prefabricated pavement slab intelligent laying machine, which is suitable for the fields of road construction, maintenance and industrial ground laying. BACKGROUND

[0002] With the development of the transportation and civil aviation industry, the demand for the original airport design standard load has increased, and the damage caused by long-period use of the runway, such as pavement slab fracture, joint breakage and potholes, has also increased. With the warming of the climate and the increase in temperature, the structural bearing capacity and the service performance of the runway are deteriorated. In order to repair the large area of the airport concrete pavement, especially to improve the load of the pavement slab, the most common method is to add a certain thickness of cement or asphalt concrete overlay on the surface of the old pavement slab, which is commonly known as "covering" or "overlaying". When the airport pavement is overlaid with asphalt, the surface layer is generally divided into three layers, from top to bottom, which are the upper surface layer, the middle surface layer and the lower surface layer, and the total thickness is controlled to be about 20 cm. One typical overlay structure is 5 cm thick SMA-13 asphalt concrete + 6.5 cm thick AC-13 + 6.5 cm thick AC-13 from top to bottom, with a total thickness of 18 cm. The asphalt concrete overlay needs to be completed in three stages, which is long in period and complicated in process. At the same time, due to the material properties of asphalt, the airport may be prone to diseases such as loosening, water damage and rutting after a period of operation, and even serious peeling diseases, which pose a certain safety hazard. For example, in a certain airport in Central China, a 3200m x 45m runway is overlaid with 21 cm of asphalt covering, with a total area of 144000 square meters, and the construction period is 126 days. After a short time of operation, diseases such as bulging, shifting and whole layer lifting occurred, which seriously threatened the safe operation of the airport. When cement concrete covering is used, the cement concrete hardens and condenses for a long time, which requires at least 7-14 days of curing period, so it is impossible to realize non-stop construction. The temperature of asphalt overlay is usually 160℃, and the construction temperature of cement concrete overlay should be controlled to be above 5℃ and below 35℃. In winter, the cement concrete cannot be fully hydrated, and the asphalt cannot be constructed (the construction period is short in the north). In addition, when the asphalt is overlaid, it cannot penetrate into the capillary pores and cracks of the concrete, and the adhesion is low, the material strength and the elastic modulus are quite different; when the concrete is overlaid, the new and old layers cannot form a superposition. Therefore, both of them cannot be bonded with the original pavement to form a whole performance. With the progress of science and technology, the new high polymer material involved in the present technology can penetrate into the capillary pores and cracks of the concrete, and has the effects of permeation repair and strong adhesion on the original pavement. At the same time, in order to minimize the impact on the normal operation of the airport, protect the environment and realize rapid and large-area delivery, the prefabricated airport pavement slab has emerged as the times require.

[0003] For the laying of prefabricated pavement slabs, on the one hand, in the face of a large number of prefabricated pavement slabs, how to improve the laying efficiency as much as possible to meet the non-stop construction requirements is always the primary consideration of prefabricated pavement slab laying operation. On the other hand, when laying prefabricated pavement slabs, hoisting is generally required. However, the polyurethane concrete prefabricated pavement slab is different from the traditional concrete prefabricated pavement slab. Because it belongs to a semi (rigid) flexible material, using the traditional steel cable direct hoisting method is easy to produce bending deformation in all directions; due to the material properties, before laying the polyurethane concrete prefabricated pavement slab on the surface of the base layer, a leveling and bonding layer needs to be added at the bottom, and the prefabricated pavement slab and the bonding material are fully combined through vibration and other means. Utility model content

[0004] The technical problem to be solved by the utility model is to provide a prefabricated pavement slab intelligent laying machine capable of meeting the efficient laying requirements of prefabricated pavement slabs and realizing high-quality intelligent operation in view of the above-mentioned prior art status.

[0005] The utility model adopts the technical scheme that the prefabricated pavement slab intelligent laying machine comprises the following parts:

[0006] A rack;

[0007] A connecting mechanism installed at the rear part of the rack and used for connecting with a flatbed trailer loaded with prefabricated pavement slabs;

[0008] A driving mechanism used for driving the rack and the flatbed trailer connected to the rack to move synchronously;

[0009] Horizontal guide rails installed on the rack and arranged horizontally along the rack running direction;

[0010] A walking mechanism installed on the horizontal guide rails and capable of reciprocating along the horizontal guide rails;

[0011] A lifting module installed on the walking mechanism and capable of lifting and transversely rotating relative to the walking mechanism, the lifting module being capable of lifting the prefabricated pavement slabs from the flatbed trailer and releasing the lifted prefabricated pavement slabs to the directly above the pavement to be laid under the driving of the walking mechanism;

[0012] A cockpit installed on the rack.

[0013] The lifting module can be connected with the walking mechanism in multiple ways, and preferably, the walking mechanism is connected with the lifting module through a hydraulic telescopic column or a hinge or a steel wire rope.

[0014] The driving mechanism can be installed at multiple different positions of the rack, and preferably, the driving mechanism is installed at the bottom of the rack.

[0015] Further preferably, the width of the driving mechanism is less than or equal to the width of the prefabricated pavement slab.

[0016] In order to facilitate the prefabricated slabs to pass through the rack, the middle part of the rack has a width greater than the bottom part of the rack, and the width of the middle part of the rack is greater than the width of the prefabricated slabs.

[0017] The lifting module can have various structures, and preferably comprises a cross beam and a longitudinal beam, a vibrator and a locking device are mounted on the cross beam and / or the longitudinal beam, an inclination and height sensor is mounted in the middle area of the lifting module, and hoisting holes are reserved around the lifting module. In this way, the lifting module has multiple functions such as intelligent leveling, locking, vibrating and lifting, which ensures that the paving of the prefabricated slabs meets the construction quality requirements.

[0018] In order to enable the lifting module to be positioned with the prefabricated slabs, the longitudinal beam and the cross beam are flush, and the bottom of the longitudinal beam has a positioning block for positioning and cooperating with the positioning hole reserved on the prefabricated slabs.

[0019] The locking device can have various structures, and preferably comprises a height adjustment locking device and a lifting locking device, the height adjustment locking device is used to interface with a leveling element on the prefabricated slabs, the leveling element is connected to the prefabricated slabs through a nut pair, and the lifting locking device is used to interface with a lifting element on the prefabricated slabs. In this way, the prefabricated slabs can be adjusted in height through the height adjustment locking device, and the prefabricated slabs can be locked through the lifting locking device to prevent falling during lifting.

[0020] The height adjustment locking device and the lifting locking device can have various structures, and preferably comprise a sliding rail, a sliding block, a motor, a fixing frame, an upper support plate, a lower support plate, a first compression spring, a second compression spring, a spring guide rod, a wrench connecting sleeve and a wrench, the motor is mounted on the fixing frame and fixed on the sliding block, the sliding block is slidingly arranged on the sliding rail, the spring guide rod is arranged above the fixing frame, the first compression spring is sleeved on the spring guide rod, the upper end of the first compression spring abuts against the upper support plate, and the lower end of the first compression spring abuts against the fixing frame, the output shaft of the motor is vertically downward, the wrench is mounted on the output shaft of the motor through the wrench connecting sleeve, the second compression spring is sleeved on the wrench, the upper end of the second compression spring abuts against the wrench connecting sleeve, and the lower end of the second compression spring abuts against the lower support plate.

[0021] Further preferably, the wrench of the height adjustment locking device is a multi-angle wrench, and the wrench of the lifting locking device is provided with threads. In this way, when the height adjustment locking device works, the multi-angle wrench drives the leveling element to rotate under the driving of the motor, the leveling element can be a bolt, and since the leveling element cooperates with the nut embedded in the prefabricated slabs, the prefabricated slabs can be moved up and down, thereby adjusting the installation height of the prefabricated slabs, and when the lifting locking device works, the threaded wrench is screwed into the nut embedded in the prefabricated slabs to achieve locking.

[0022] Compared with the prior art, the precast pavement slab intelligent laying machine has the following advantages: the flatbed trailer loaded with the precast pavement slab is connected to the rear part of the rack and moves synchronously with the rack under the driving of the driving mechanism, the lifting module can move up and down and rotate laterally relative to the walking mechanism, the precast pavement slab on the flatbed trailer can be lifted to the top of the pavement to be laid and released, the lifting module has multiple functions such as intelligent leveling, locking, vibrating and lifting, so that the efficient laying of the precast pavement slab is realized, high-quality intelligent operation is realized, and the intelligent laying machine can be used for parallel synchronous construction, laying operation is performed along the pavement simultaneously, the efficiency of the precast pavement slab laying operation is significantly improved, and the intelligent laying machine can meet the non-stop construction requirement when applied to the airport pavement slab repair. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of the intelligent laying machine of the embodiment of the utility model;

[0024] Figure 2 is Figure 1 is another angle structural schematic view of the intelligent laying machine shown in the figure;

[0025] Figure 3 is Figure 1 is another angle structural schematic view of the intelligent laying machine shown in the figure;

[0026] Figure 4 is Figure 1 is another angle structural schematic view of the intelligent laying machine shown in the figure;

[0027] Figure 5 is a structural schematic view of the lifting module of the embodiment of the utility model;

[0028] Figure 6 is a separation structural schematic view of the lifting module and the precast template of the embodiment of the utility model;

[0029] Figure 7 is a cooperation structural schematic view of the lifting module and the precast template of the embodiment of the utility model;

[0030] Figure 8 is a structural schematic view of the lifting locking device of the embodiment of the utility model;

[0031] Figure 9 is Figure 8 is another angle structural schematic view of the lifting locking device shown in the figure;

[0032] Figure 10 is a structural schematic view of the height adjusting locking device of the embodiment of the utility model;

[0033] Figure 11 The structure schematic diagram of parallel and synchronous construction of multiple intelligent laying machines is shown. DETAILED DESCRIPTION

[0034] The utility model will be described further in detail below in combination with the drawings.

[0035] As Figures 1 to 4 shown, the prefabricated pavement slab intelligent laying machine of the embodiment comprises a rack 1, a connecting mechanism 2, a driving mechanism 3, a horizontal guide rail 4, a walking mechanism 5, a lifting appliance module 6, a cockpit 7 and a flatbed trailer 8 and the like components. The direction shown by the arrow A is forward, the connecting mechanism 2 is installed at the rear of the rack 1, the flatbed trailer 8 is connected at the rear of the rack 1 through the connecting mechanism 2 and is used to load the prepared prefabricated pavement slab 9, and the cockpit 7 is installed at the top of the rack 1. The driving mechanism 3 is installed at the bottom of the rack 1 and is used to drive the synchronous movement of the rack 1 and the flatbed trailer 8, and the width of the driving mechanism 3 is less than or equal to the width of the prefabricated pavement slab 9. The horizontal guide rail 4 is installed on the rack 1 and is horizontally arranged along the forward and backward direction of the rack 1. The walking mechanism 5 is installed on the horizontal guide rail 4 and can reciprocate forward and backward along the horizontal guide rail 4;

[0036] The lifting appliance module 6 is installed on the walking mechanism 5, and the walking mechanism 5 is connected with the lifting appliance module 6 through the hydraulic telescopic column 10 or the hinge or the steel wire rope, so that the lifting appliance module 6 can make lifting and lateral rotation relative to the walking mechanism 5. The middle width of the rack 1 is greater than the bottom width of the rack 1, and the width of the middle of the rack 1 is greater than the width of the prefabricated pavement slab 9, so that the lifting appliance module 6 can pass through the rack 1 backward under the driving of the walking mechanism 5, and the prefabricated pavement slab 9 is lifted from the flatbed trailer 8. After that, the lifting appliance module 6 passes through the rack 1 forward, and the lifted prefabricated pavement slab 9 is released to the directly above the pavement to be laid.

[0037] As Figures 5 to 7 shown, the lifting appliance module 6 of the embodiment comprises a cross beam 61 and a longitudinal beam 62, a vibrator 63 and a locking device are installed on the cross beam 61 and / or the longitudinal beam 62, an inclination and height sensor 64 is installed in the middle region of the lifting appliance module 6, and hoisting holes 65 are reserved around the lifting appliance module 6 and are used in cooperation with the container lifting appliance. The longitudinal beam 62 of the embodiment is flush with the cross beam 61, the bottom of the longitudinal beam 62 has a positioning block 620 used for positioning and cooperation with the positioning hole 90 reserved on the prefabricated pavement slab 9, and the positioning block 620 of the embodiment is a conical positioning block and can be quickly positioned with the positioning hole 90.

[0038] The locking device comprises a height adjustment locking device 66a and a lifting locking device 66b. After the positioning block 620 is positioned in the empty hole 90, the height adjustment locking device 66a is connected with the leveling element 91 on the prefabricated slab 9, and the leveling element 91 is connected with the prefabricated slab 9 through the embedded nut 93. The lifting locking device 66b is connected with the prefabricated slab 9 through the lifting element 92.

[0039] As shown in Figures 8 to 10 The height adjustment locking device 66a and the lifting locking device 66b both comprise a sliding rail 660, a sliding block 661, a motor 662, a fixed frame 663, an upper support plate 664, a lower support plate 665, a first compression spring 666, a second compression spring 667, a spring guide rod 668, a wrench connecting sleeve 669 and a wrench 6610. The motor 662 is installed on the fixed frame 663 and fixed on the sliding block 661. The sliding block 661 is slidingly arranged on the sliding rail 660. The spring guide rod 668 is arranged above the fixed frame 663. The first compression spring 666 is sleeved on the spring guide rod 668, and the spring guide rod 668 can ensure that the first compression spring 666 does not come out when compressed. The upper support plate 664 and the lower support plate 665 are both fixed on the sliding rail 660. The upper end of the first compression spring 666 abuts against the upper support plate 664, and the lower end of the first compression spring 666 abuts against the fixed frame 663. The output shaft of the motor 662 is vertically downward. The wrench 6610 is installed on the output shaft of the motor 662 through the wrench connecting sleeve 669. The second compression spring 667 is sleeved on the wrench 6610. The upper end of the second compression spring 667 abuts against the wrench connecting sleeve 669, and the lower end of the second compression spring 667 abuts against the lower support plate 665. The wrench connecting sleeve 669 connects the motor 662 and the wrench 6610, and the second compression spring 667 supports the motor 662 and the fixed frame 663. The wrench 6610 of the height adjustment locking device 66a is a multi-angle wrench, and the wrench 6610 of the lifting locking device 66b is provided with threads.

[0040] The first compression spring 666 and the second compression spring 667 are respectively located above and below the motor 662 to keep the motor 662 in the middle position. Preferably, the elastic coefficient of the first compression spring 666 is greater than that of the second compression spring 667. During leveling and lifting, since the motor 662 rotates to drive the wrench 6610 to move downward, the motor 662 is ensured to move downward along the sliding rail 660 synchronously under the push of the first compression spring 666, so that the wrench 6610 is kept connected with the leveling element 91 and the lifting element 92.

[0041] The prefabricated pavement slab intelligent laying machine works as follows: first, the flatbed trailer 8 is hung on the frame 1, and then the flatbed trailer 8 is pulled on the laying site plane by the driving mechanism 3, preferably by GPS navigation to synchronously travel to the target position. After the device moves to the target position under the control of the intelligent control system, the walking mechanism 3 moves along the horizontal guide rail 4 until it reaches directly above the prefabricated pavement slab 9 of the flatbed trailer 8 under the control of the machine vision system, and then the lifting tool module 6 is vertically lowered. After the lifting tool module 6 is aligned with the prefabricated pavement slab 9 through the positioning hole 90, the height locking device 66a is docked with the leveling element 91. The leveling element 91 of the embodiment is a bolt, and forms a nut pair with the embedded nut 93. The lifting locking device 66b is docked with the lifting element 92, i.e., the prefabricated pavement nut.

[0042] The lifting locking device 66b starts to act, and the lifting element 92, i.e., the prefabricated pavement nut, is screwed down, so that the lifting tool module 6 is closely attached to the prefabricated pavement slab 9. The lifting tool frame has high rigidity, which ensures that the prefabricated pavement slab 9 will not bend under the action of gravity. When it is necessary to lower the prefabricated pavement slab 9, the lifting locking device 66b is reversely rotated to be released from the lifting element 92, i.e., the prefabricated pavement nut, and the whole lifting tool module 6 is separated from the prefabricated pavement slab 9.

[0043] During paving, after the device lifts the prefabricated pavement slab 9 from the flatbed trailer 8, the prefabricated pavement slab 9 is vertically placed on the adhesive material base pavement under the control of the machine vision system until it moves to the pavement laying position. At this time, the inclination and height sensors 64 on the lifting tool module 6 continuously detect the inclination and elevation of the pavement slab. When an abnormal deviation from the target value is detected, the height locking device 66a is automatically controlled to screw down the leveling element 91. The leveling element 91 adopts a bolt, and forms a nut pair with the embedded nut 93. Therefore, after the leveling element 91 contacts the ground, the prefabricated pavement slab 9 is automatically lifted to realize plane angle and height adjustment until the deviation is reduced to the allowable range.

[0044] The prefabricated pavement slab leveling method of the embodiment mainly includes the steps of initial measurement, data transmission, analysis and calculation, linkage leveling, and result re-measurement.

[0045] (1) Initial measurement: After the prefabricated pavement slab is lifted, laid and positioned, the plane position has reached the construction requirements, and only the elevation and slope need to be adjusted. The inclination and elevation data of the fixed position are measured and collected by the inclination and height sensors on the lifting tool module in combination with the data acquisition device.

[0046] (2) Data transmission: The elevation inclination and data measured and collected by the data acquisition device are packaged and sent to the intelligent controller. After receiving the data from the data acquisition device, the intelligent controller analyzes and calculates. The data transmission preferably uses Bluetooth, a special network or a special transmission device.

[0047] (3) Analysis and calculation: the intelligent controller compares the received actual inclination and elevation data with the design inclination and elevation data input in advance, analyzes and calculates the travel and number of turns of the lifting module locking device that needs to be adjusted.

[0048] (4) Linkage leveling: a paving panel is designed with multiple leveling points, preferably 4, and the multiple points are leveled in linkage through synchronous control of the locking devices, so as to achieve one-time leveling and ensure leveling accuracy and efficiency.

[0049] (5) Result retest: the inclination and elevation data measured and collected by the sensor combined with the data acquisition device are sent to the intelligent controller for analysis and calculation, compared with the design value, and whether the leveling process needs to be repeated is judged. If the error value is within the allowable range, the leveling is ended. If the error exceeds the allowable range, the leveling process is repeated until the data error meets the design requirement.

[0050] After the whole prefabricated paving panel 9 is leveled, the vibrator 5 starts to work, and the lifting module 6 and the prefabricated paving panel 9 start to vibrate together, so that the polyurethane concrete or other high molecular adhesive material pre-paved on the to-be-paved pavement can be completely attached to the prefabricated paving panel 10. After the vibrating is completed, all the locking devices are loosened, and the prefabricated paving panel 9 and the lifting module 6 are separated, i.e. the installation of one prefabricated paving panel 9 is completed. Each link of the above work flow is automatically controlled by the intelligent control system under the support of the machine vision system provided by the equipment, and unmanned operation can be realized.

[0051] In addition, in order to realize intelligent sequencing, identification and positioning of the paving panel, as a preferred scheme, an RFID electronic tag (radio frequency identification chip) can be built-in in the paving panel during the prefabrication of the paving panel, so as to realize intelligent sequencing of the prefabricated paving panel. A radio frequency identification reader is correspondingly installed on the intelligent paving machine, which can read / write the electronic tag information by using radio waves, so as to automatically and non-contactly identify the prefabricated paving panel. The intelligent control system lifts the prefabricated paving panel with the required number by the lifting module according to the radio frequency identification result, and accurately moves and positions the prefabricated paving panel to the target position under the support of the preferred machine vision system to implement paving operation on the prefabricated paving panel. The intelligent control system mainly comprises an intelligent controller, a machine vision camera and a sensor, an inclination sensor, a height sensor, a data acquisition device and the like.

[0052] As shown in Figure 11 , multiple paving machines are used for parallel and synchronous construction, and each paving machine performs paving operation along the respective pavement 100 direction at the same time, so that the prefabricated paving panel paving operation efficiency can be significantly improved, and the "non-stop" construction requirement can be met.

[0053] In the description and claims of the present application, terms are used to generally identify the conceptual aspects of the embodiments. The use of these terms is intended to be illustrative and not restrictive. There can be many different examples that implement the concepts in accordance or in disagreement with the language of this description and the associated drawings, and such examples do not depart from the spirit and scope of the application.

Claims

1. A precast paving slab intelligent laying machine characterized by The utility model relates to a prefabricated road plate lifting device, which comprises the following parts: A frame (1); A connecting mechanism (2) installed at the back of the frame (1) and used for connecting with a flatbed trailer (8) loaded with prefabricated road plates (9); A driving mechanism (3) for driving the frame (1) and the flatbed trailer (8) connected to the frame (1) to move synchronously; Horizontal guide rails (4) installed on the frame (1) and arranged horizontally along the moving direction of the frame (1); A walking mechanism (5) installed on the horizontal guide rails (4) and capable of moving reciprocally along the horizontal guide rails (4); A lifting module (6) installed on the walking mechanism (5) and capable of moving up and down and rotating laterally relative to the walking mechanism (5), the lifting module (6) being capable of lifting the prefabricated road plates (9) from the flatbed trailer (8) and releasing the prefabricated road plates (9) to the top of the road to be paved under the driving of the walking mechanism (5); A driver's cabin (7) installed on the frame (1).

2. The preformed track board intelligent lay machine of claim 1, wherein: The walking mechanism (5) is connected with the lifting module (6) through hydraulic telescopic columns (10), hinges or steel wires.

3. The preformed track board intelligent laydown machine of claim 1, wherein: The driving mechanism (3) is installed at the bottom of the frame (1).

4. The preformed paving mat intelligent paver of claim 3, wherein: The width of the driving mechanism (3) is less than or equal to the width of the prefabricated road plates (9).

5. The preformed track board intelligent laydown machine of claim 3, wherein: The width of the middle part of the frame (1) is greater than the width of the bottom of the frame (1), and the width of the middle part of the frame (1) is greater than the width of the prefabricated road plates (9).

6. The preformed track board intelligent laydown machine of claim 1, wherein: The lifting module (6) comprises crossbeams (61) and longitudinal beams (62), vibrators (63) and locking devices are installed on the crossbeams (61) and / or longitudinal beams (62), an inclination and height sensor (64) is installed in the middle area of the lifting module (6), and hoisting holes (65) are reserved around the lifting module (6).

7. The preformed track board intelligent laydown machine of claim 6, wherein: The longitudinal beams (62) are flush with the crossbeams (61) in the up-down direction, and the bottom of the longitudinal beams (62) is provided with positioning blocks (620) for positioning and matching with positioning holes (90) reserved on the prefabricated road plates (9).

8. The preformed track board intelligent laydown machine of claim 6, wherein: The locking devices comprise height-adjusting locking devices (66a) and lifting locking devices (66b), the height-adjusting locking devices (66a) are used for connecting with leveling elements (91) on the prefabricated road plates (9), the leveling elements (91) are connected with the prefabricated road plates (9) through embedded nuts (93), and the lifting locking devices (66b) are used for connecting with lifting elements (92) on the prefabricated road plates (9).

9. The preformed track board intelligent laydown machine of claim 8, wherein: The height adjusting locking device (66a) and the lifting locking device (66b) each comprise a sliding rail (660), a sliding block (661), a motor (662), a fixing frame (663), an upper support plate (664), a lower support plate (665), a first compression spring (666), a second compression spring (667), a spring guide rod (668), a wrench connecting sleeve (669) and a wrench (6610), the motor (662) is installed on the fixing frame (663) and fixed on the sliding block (661), the sliding block (661) is slidingly arranged on the sliding rail (660), the spring guide rod (668) is arranged above the fixing frame (663), the first compression spring (666) is sleeved on the spring guide rod (668), the upper end of the first compression spring (666) abuts against the upper support plate (664), the lower end of the first compression spring (666) abuts against the fixing frame (663), the output shaft of the motor (662) vertically downward, the wrench (6610) is installed on the output shaft of the motor (662) through the wrench connecting sleeve (669), the second compression spring (667) is sleeved on the wrench (6610), the upper end of the second compression spring (667) abuts against the wrench connecting sleeve (669), and the lower end of the second compression spring (667) abuts against the lower support plate (665).

10. The preformed track board intelligent laydown machine of claim 9, wherein: The wrench (6610) of the height adjusting locking device (66a) is a multi-angle wrench, and the wrench (6610) of the lifting locking device (66b) is provided with threads.

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