Conveying device for continuously loading and unloading materials of gantry crane

Abstract

The invention relates to the technical field of gantry cranes, in particular to a continuous material loading and unloading conveying device of a gantry crane. The continuous material loading and unloading conveying device of the gantry crane comprises two moving frames, a lifting frame, two ground rails, a controller, a sliding rail, a translation frame and the like, two moving wheels are assembled at the bottom of each moving frame, the lifting frame is vertically and slidably connected between the tops of the two moving frames, the two ground rails are preassembled and fixed to the ground of an operation area, and the controller is connected with the sliding rail. The moving frames are embedded in the sliding grooves of the ground rail through bottom moving wheels, and a controller is installed on the left side wall of the left moving frame. By means of a synchronous belt transmission structure of the moving assembly, sliding blocks on the two sides and a hoisting machine can be driven to synchronously get close to or get away from each other, double-station synchronous material grabbing and hoisting are achieved, traditional single-station waiting time is avoided, the loading and unloading requirements of materials on the two sides of a truck are met, and truck materials can be sequentially and efficiently treated by combining front-back movement of the device along a ground rail; the overall loading and unloading efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gantry cranes, and particularly relates to a continuous material loading and unloading transport device of a gantry crane. BACKGROUND

[0002] In the scenarios of logistics storage and cargo transfer, gantry crane devices are widely used in material loading and unloading operations. At present, the common gantry crane usually adopts a single-station hoisting design, which has a simple structure, but can only handle a single piece of cargo each time, and has a low loading and unloading efficiency, which is difficult to meet the demand of modern logistics for efficient operation.

[0003] In order to improve the efficiency, some devices adopt a double-station design, which can hoist two pieces of cargo at the same time to a certain extent. However, such devices still have certain limitations in actual application: on the one hand, the normal operation of the device usually requires that the truck be strictly parked at the hoisting center position, and if there is a deviation in the parking position or the angle, it is difficult to realize accurate alignment, and the vehicle needs to be adjusted repeatedly by manual operation, which affects the smoothness of the operation; on the other hand, the two lifting points of some double-station devices need to be driven and adjusted separately, and the operator must control the two lifting devices on the two sides to move and align, which is a relatively complicated process, and the degree of automation is not high, and the double-station device cannot fully exert the efficiency advantage of the double-station design.

[0004] Therefore, it is necessary to develop a loading and unloading device that can adapt to the parking position of the truck and has the functions of automatic centering and synchronous control of the double lifting points, so as to improve the adaptability to the operating environment and the overall operation efficiency. SUMMARY

[0005] In order to overcome the shortcomings mentioned in the background art, the present application provides a continuous material loading and unloading transport device of a gantry crane.

[0006] The technical implementation scheme of the present application is: a gantry crane continuous loading and unloading material conveying device, comprising a moving frame, a lifting frame, a ground rail, a controller, a sliding rail, a translation frame, a mounting frame, a sliding block, a hoist, a laser ranging sensor array, an adjusting motor, a threaded rod, an adjusting block and a moving assembly, two moving frames are arranged, and two moving wheels are arranged on the bottom of each moving frame; the lifting frame is vertically and slidingly connected between the top of the two moving frames; the ground rail is provided with two ground rails, which are preassembled and fixed on the ground of the working area; the moving frame is embedded in the sliding groove of the ground rail through the bottom moving wheel; the controller is installed on the left side wall of the left moving frame; the sliding rails are symmetrically installed on the top surface of the lifting frame on both sides; the translation frame is slidingly connected between each pair of symmetric sliding rails; the mounting frame is slidingly connected between the top of the two translation frames through the support; the sliding blocks are slidingly connected on both sides of the mounting frame; the hoist is installed on the bottom of the sliding block; the laser ranging sensor array is installed on the bottom of the lifting frame; the adjusting motor is symmetrically installed on the left side of the top of the lifting frame; the threaded rod is coaxially connected on the output shaft of the adjusting motor; the adjusting block is threadedly connected on the threaded rod; each adjusting block is fixedly connected with the corresponding side translation frame; the laser ranging sensor array, the adjusting motor and the hoist are electrically connected with the controller; and the mounting frame is provided with a driving assembly.

[0007] In a preferred embodiment of the present application, a transparent protective cover is integrally formed outside the laser ranging sensor array.

[0008] In a preferred embodiment of the present application, the lifting frame adopts a frame structure welded by rectangular steel pipes.

[0009] In a preferred embodiment of the present application, the moving assembly comprises a driving motor, a synchronous wheel, a synchronous belt and a connecting block; the driving motor is symmetrically installed on the left side of the bottom of the mounting frame; the synchronous wheel is coaxially connected on the output shaft of the driving motor; another two synchronous wheels are rotatably installed on the position corresponding to the synchronous wheel on the right side of the mounting frame through a bearing seat; the synchronous belt is wound between each pair of symmetric synchronous wheels; the connecting block is connected on the front and rear ends of the bottom of the sliding block; the connecting block on the left side of the sliding block is fixedly connected with the inner circumferential segment of the synchronous belt; and the connecting block on the right side of the sliding block is fixedly connected with the outer circumferential segment of the synchronous belt.

[0010] In a preferred embodiment of the present application, the pressure spring, the clamping block and the groove block are further included; the pressure spring is sleeved outside the support on the translation frame; the upper and lower ends of the pressure spring are fixedly connected with the inner wall of the mounting frame and the lower end of the support; a plurality of clamping blocks are fixedly connected at the central positions of the front and rear sides of the bottom of the mounting frame; the clamping block penetrates through the translation frame; the groove block is installed on the central position of the top of the lifting frame; a plurality of clamping grooves matched with the clamping block are formed in the groove block; and the clamping block and the clamping groove of the groove block form a clamping fitting relationship.

[0011] In a preferred embodiment of the present application, the top rod, the inclined block, the baffle, the pulley and the reset spring are further included, the top rod is symmetrically connected to the central position of the front side in the mounting frame, the pulley is rotatably connected to the bottom end of the top rod, the two inclined blocks are slidably connected to the upper front side in the lifting frame through two guide rods, the rear side wall of the inclined block is provided as an inclined surface, the pulley and the inclined surface of the corresponding side inclined block form a sliding fit relationship, the baffle is connected between the bottom portions of the two inclined blocks, the reset spring is sleeved outside the guide rod on the inclined block, and the two ends of the reset spring are connected to the inside of the lifting frame and the end face of the inclined block, respectively.

[0012] In a preferred embodiment of the present application, the electric push rod and the distance sensor are further included, the electric push rod is installed at the central position of the moving frame, the telescopic rod of the electric push rod is fixedly connected to the two ends of the lifting frame, the distance sensor is vertically installed on the front side of the lifting frame, and the electric push rod and the distance sensor are electrically connected to the controller.

[0013] In a preferred embodiment of the present application, a polytetrafluoroethylene lubricating coating is sprayed on the inner wall of the sliding groove of the ground rail.

[0014] Compared with the prior art, the present application has the following advantages: 1. Relying on the synchronous belt transmission structure of the moving assembly, the two side sliding blocks and the hoisting machine can be driven to be synchronously close or far away, the double-station synchronous grabbing and hoisting of materials are realized, the waiting time of the traditional single-station is avoided, the material loading and unloading requirements of the two sides of the truck are adapted, the device moves forward and backward along the ground rail, the truck materials can be efficiently processed in turn, and the overall loading and unloading efficiency is improved.

[0015] 2. The laser ranging sensor array is used to detect the position deviation of the truck in real time, the linkage adjustment motor drives the moving frame to move left and right, the hoisting machine and the truck are automatically aligned, and manual intervention is not needed; even if the truck is parked obliquely, the device can still continuously adapt and adjust by moving forward and backward, the loading and unloading errors caused by the parking deviation of the truck are reduced, and the operation difficulty is reduced.

[0016] 3. In the hoisting process, the horizontal position of the moving frame is automatically locked through the embedding of the clamping block and the groove block, the unexpected deviation of the moving frame in the moving or lifting process of the hoisting machine is avoided, the hoisting machine is kept stationary during hoisting, the laser emission path of the baffle shielding laser ranging sensor array is avoided, the hoisting process is smooth, and the service life of the adjustment motor is ensured.

[0017] 4. The distance sensor collects the height of the lifting frame in real time and displays it on the controller, the hoisting machine can be accurately adjusted to the position suitable for different height trucks or unloading requirements, the single height limitation is broken, and the adaptability of the device to diversified loading and unloading scenes is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the three-dimensional structure of the present application.

[0019] Figure 2 is a schematic diagram of the three-dimensional structure of the adjusting motor, threaded rod, adjusting block and other components of the present application.

[0020] Figure 3 is a schematic diagram of the three-dimensional structure of the driving motor, synchronous wheel, synchronous belt and other components of the present application.

[0021] Figure 4 is a schematic diagram of the three-dimensional structure of the synchronous belt, sliding block, hoist and other components of the present application.

[0022] Figure 5 is a schematic diagram of the three-dimensional structure of the synchronous wheel, synchronous belt, connecting block and other components of the present application.

[0023] Figure 6 is a schematic diagram of the three-dimensional structure of the pressure spring, clamping block, slot block and other components of the present application.

[0024] Figure 7 is a schematic diagram of the three-dimensional structure of the mounting frame, clamping block, slot block and other components of the present application.

[0025] Figure 8 is a schematic diagram of the three-dimensional structure of the top rod, inclined block, baffle and other components of the present application.

[0026] Figure 9 is a schematic diagram of the three-dimensional structure of the mounting frame, pulley, top rod and other components of the present application.

[0027] Figure 10 is a schematic diagram of the three-dimensional structure of the laser ranging sensor array, baffle, inclined block and other components of the present application.

[0028] Figure 11 is a schematic diagram of the three-dimensional structure of the inclined block, baffle, return spring and other components of the present application.

[0029] Among the above drawings, the following reference signs are included: 1, moving frame, 102, lifting frame, 103, ground rail, 104, controller, 105, slide rail, 106, translation frame, 107, mounting frame, 108, sliding block, 109, hoist, 201, laser ranging sensor array, 202, adjusting motor, 203, threaded rod, 204, adjusting block, 301, driving motor, 302, synchronous wheel, 303, synchronous belt, 304, connecting block, 401, pressure spring, 402, clamping block, 403, slot block, 501, top rod, 502, inclined block, 503, baffle, 504, pulley, 505, return spring, 601, electric push rod, 602, distance sensor. DETAILED DESCRIPTION

[0030] Example 1: A gantry crane continuous loading and unloading material transport device, such as Figures 1-5As shown, including mobile frame 1, lifting frame 102, ground rail 103, controller 104, slide rail 105, translation frame 106, mounting frame 107, sliding block 108, hoist 109, laser ranging sensor array 201, adjusting motor 202, threaded rod 203, adjusting block 204 and moving assembly, the mobile frame 1 is provided with two, which are symmetrically distributed, the bottom of which is equipped with two moving wheels, the lifting frame 102 is vertically and slidingly connected between the top of the two mobile frames 1, and together constitutes the main frame structure of the gantry crane, the lifting frame 102 adopts a frame structure welded by rectangular steel pipes, which helps to reduce the weight of the equipment, realize the good balance of light weight and high load, while ensuring the rigidity and strength of the overall structure, preventing excessive deformation during hoisting, the ground rail 103 is provided with two, which are preassembled and fixed on the ground of the working area, the installation spacing of which is adapted to the spacing between the two mobile frames 1, the mobile frame 1 is embedded in the sliding groove of the ground rail 103 through the bottom moving wheels, forming a stable sliding fit along the track, the inner wall of the sliding groove of the ground rail 103 is sprayed with a polytetrafluoroethylene lubricating coating, which can reduce the sliding resistance between the moving wheels and the sliding groove, making the gantry crane body move more smoothly along the ground rail 103, reducing the manual pushing force, the left side wall of the left mobile frame 1 is provided with a controller 104 through bolt installation, the lifting frame 102 top surface front and back sides are symmetrically installed with slide rails 105, each of the two symmetric slide rails 105 is slidingly connected with a translation frame 106, the mounting frame 107 is vertically and slidingly connected between the top of the two translation frames 106 through a plurality of uniformly distributed support columns along the length direction, the mounting frame 107 is slidingly connected with a sliding block 108 on the left and right sides, the hoist 109 is installed on the bottom of the sliding block 108, the laser ranging sensor array 201 is installed on the bottom of the lifting frame 102 through bolt installation, the array emits laser downward through a plurality of sensor units, realizing the detection and centering judgment of the position of the truck, the laser ranging sensor array 201 is externally provided with an integrally formed transparent protective cover, which can effectively prevent dust, water vapor or accidental bumps during loading and unloading from polluting or damaging the precision sensor, the adjusting motor 202 is symmetrically installed on the top left side of the lifting frame 102 through bolt installation, the threaded rod 203 is coaxially connected on the output shaft of the adjusting motor 202, the right end of the threaded rod 203 is rotatably connected with the top of the lifting frame 102 through a bearing seat, the adjusting block 204 is threadedly connected on the threaded rod 203, each adjusting block 204 is fixedly connected with the corresponding side translation frame 106, the adjusting motor 202 can drive the threaded rod 203 to rotate, thereby driving the adjusting block 204 and the translation frame 106 to move horizontally along the slide rail 105, to adjust the horizontal working position of the hoist 109, the laser ranging sensor array 201, the adjusting motor 202 and the hoist 109 are electrically connected with the controller 104, and the laser ranging sensor array 201 and the adjusting motor 202 are linked to automatically control the horizontal movement of the translation frame 106 according to the position deviation of the truck, to realize the automatic centering of the hoist 109 and the truck, the mounting frame 107 is provided with a driving assembly,The mobile assembly is used for driving the two sliding blocks 108 to move synchronously towards or away from each other, so as to realize the cooperative operation of the two lifting machines 109, and support the double-station lifting operation.

[0031] As shown in Figures 2-5 The mobile assembly comprises a driving motor 301, synchronous wheels 302, a synchronous belt 303 and connecting blocks 304. The driving motor 301 is symmetrically installed on the bottom left side of the mounting frame 107 through bolts. The synchronous wheels 302 are coaxially connected to the output shaft of the driving motor 301. Another two synchronous wheels 302 are rotatably installed on the right side of the mounting frame 107 through bearing seats, corresponding to the synchronous wheels 302. The synchronous belt 303 is wound between the two synchronous wheels 302 symmetrically arranged on the left and right. The connecting blocks 304 are welded to the bottom of the sliding blocks 108. The connecting block 304 on the left sliding block 108 is fixedly connected to the inner circumferential segment of the synchronous belt 303, and the connecting block 304 on the right sliding block 108 is fixedly connected to the outer circumferential segment of the synchronous belt 303. When the synchronous belt 303 rotates under the driving of the driving motor 301, the two sliding blocks 108 are respectively pulled by the connecting blocks 304 to move synchronously towards or away from each other.

[0032] In use of the device, first, the mobile frame 1 is embedded into the slide groove of the two ground rails 103 fixed on the ground through the bottom mobile wheels, so that the gantry crane can move stably along the ground rails 103, and the initial installation and positioning of the device is completed. After the truck drives to the area below the lifting frame 102 where the materials to be loaded or unloaded are located and is parked, the controller 104 automatically triggers the laser ranging sensor array 201 to start. The laser ranging sensor array 201 emits laser light vertically downward through the multiple laser sensors contained therein, and synchronously collects two groups of data, i.e. the distance values from each sensor to the ground reference surface and the distance values from each sensor to the truck top bearing surface. The controller 104 receives the distance data transmitted by the laser ranging sensor array 201, compares the difference between the "sensor-to-truck-top distance values" measured by the sensors on both sides, judges the left-right centering state of the truck relative to the gantry crane main structure, and determines that the truck is centered and aligned with the gantry crane main structure if the difference between the left and right sides is zero. If the difference is not zero, the left-right offset direction and specific offset amount of the truck are calculated and an offset signal is generated. The laser ranging sensor array 201 immediately transmits the position deviation signal and data to the controller 104. The controller 104 sends corresponding driving instructions to the adjusting motor 202 according to the offset signal. After receiving the instructions, the output shaft of the adjusting motor 202 drives the threaded rod 203 to rotate forward or reverse. The threaded rod 203 drives the adjusting block 204 to move axially along the threaded rod 203 through thread cooperation. The adjusting block 204 further drives the translation frame 106 to move left and right along the slide rail 105 on the lifting frame 102. The translation frame 106 further drives the mounting frame 107, the sliding block 108 and the hoisting machine 109 to move synchronously until the laser ranging sensor array 201 detects that the truck is centered and aligned with the hoisting machine 109 in the left-right position. The controller 104 immediately controls the adjusting motor 202 to stop running. Then the controller 104 controls the driving motor 301 in the moving assembly to start. The output shaft of the driving motor 301 drives the left synchronous pulley 302 to rotate. The left synchronous pulley 302 drives the right synchronous pulley 302 to rotate synchronously through the synchronous belt 303. Because the connecting block 304 of the left sliding block 108 is fixedly connected with the inner circumferential segment of the synchronous belt 303, and the connecting block 304 of the right sliding block 108 is fixedly connected with the outer circumferential segment of the synchronous belt 303, when the synchronous belt 303 rotates, the movement directions of the inner circumferential segment and the outer circumferential segment are opposite. Then the connecting block 304 drives the sliding blocks 108 on both sides to move synchronously and approach or move away from each other along the mounting frame 107 until the hoisting machines 109 on both sides are respectively aligned with the materials to be loaded or unloaded on both sides of the truck. Then the driving motor 301 is turned off. Then the controller 104 drives the hoisting machines 109. The hoisting machines 109 grab the materials through the hooks and binding ropes thereon. Then the hoisting machines 109 control the hooks to move upward to lift the materials from the truck. The two hoisting machines 109 operate synchronously to realize double-station synchronous hoisting operation. After the materials are completely lifted, the controller 104 controls the driving motor 301 to operate in reverse to drive the sliding blocks 108 and the hoisting machines 109 to move away from each other synchronously until they move away from the truck area.The hoist 109 is controlled to loosen the rope to unload the materials to the preset ground stacking area, and the unloading of a batch of goods is completed. When the remaining goods on the truck are unloaded, the above operation is repeated. In this process, the laser ranging sensor array 201 monitors the positional relationship between the truck goods and the hoist 109 in real time. If the positional deviation is detected, the horizontal centering position adjustment of the translation frame 106 driven by the adjusting motor 202 is automatically controlled to achieve the adaptive purpose. At the same time, the staff can push the moving frame 1 to make the moving frame 1 slide along the sliding groove of the ground rail 103 through the bottom moving wheels to realize the overall position adjustment of the device based on the front and rear positions of the truck to unload the goods from front to back or from back to front in turn. The same method can be used for loading as for unloading. Even if the truck is in a diagonal parking state based on the device, with the position adjustment in the front and rear directions of the device, the laser ranging sensor array 201 can also automatically control the hoist 109 to keep centered and aligned with the materials, and will not be limited by the diagonal deviation and the left and right deviation of the truck. After the complete loading and unloading of the goods are completed, the driving motor 301 is controlled by the controller 104 to operate to drive the two hoists 109 to move away from each other along the mounting frame 107 synchronously, and reset to the preset standby state. At the same time, the hooks of the hoists 109 are reset, waiting for the next use.

[0033] Example 2: On the basis of example 1, as Figures 6-7As shown, it also includes pressure spring 401, clamping block 402 and groove block 403, the outer side of the support on the translation frame 106 is sleeved with pressure spring 401, the upper and lower ends of the pressure spring 401 are fixedly connected with the inner wall of the mounting frame 107 and the lower end of the support respectively, forming an elastic support structure, three clamping blocks 402 are fixedly connected at the central positions of the front and rear sides of the bottom of the mounting frame 107 along the length direction, the clamping blocks 402 are arranged through the translation frame 106, and the bottom surface of the clamping block 402 is flush with the bottom surface of the translation frame 106 initially, the groove blocks 403 are installed at the central positions of the front and rear sides of the top of the lifting frame 102, a plurality of clamping grooves matched with the clamping blocks 402 are formed on the groove blocks 403 along the length direction, and the clamping blocks 402 and the clamping grooves of the groove blocks 403 form a separable clamping matching relationship, when the hoisting machine 109 hoists the goods, the downward pulling force generated by the goods drives the mounting frame 107 to move downward along the support on the translation frame 106, the pressure spring 401 is compressed to generate a buffer elastic force, the mounting frame 107 moves downward to drive the clamping blocks 402 to move downward and penetrate through the translation frame 106, the lower end of the clamping block 402 is inserted into the corresponding clamping groove of the groove block 403, and the horizontal position of the translation frame 106 is locked, which can ensure that the position detection signal of the laser ranging sensor array 201 does not trigger the action of the adjusting motor 202 during the left and right movement and the upward and downward hoisting of the hoisting machine 109, avoid unintended translation of the translation frame 106, and ensure the stationary state of the translation frame 106 during hoisting, when the goods are unloaded, the pulling force on the hoisting machine 109 disappears, the pressure spring 401 is elastically reset, drives the mounting frame 107 to move upward along the support and reset, the mounting frame 107 drives the clamping blocks 402 to move upward and disengage from the clamping grooves of the groove blocks 403, and the translation frame 106 restores the adjustment freedom in the horizontal direction.

[0034] As shown, Figures 8-11 It also includes top rod 501, inclined block 502, baffle 503, pulley 504 and reset spring 505, the central positions of the front sides in the mounting frame 107 are symmetrically connected with the top rod 501 through screws, the bottom ends of the top rod 501 are rotatably connected with the pulleys 504, the upper front sides in the lifting frame 102 are slidably connected with the two inclined blocks 502 through two guide rods, the rear side walls of the inclined blocks 502 are inclined surfaces, the pulleys 504 and the inclined surfaces of the corresponding side inclined blocks 502 form a sliding matching relationship, the baffle 503 is connected between the bottom parts of the two inclined blocks 502, in the initial state, the baffle 503 is located at the rear side of the laser ranging sensor array 201, and the bottom surface of the baffle 503 is lower than the bottom surface of the laser ranging sensor array 201, the guide rods on the inclined blocks 502 are sleeved with the reset springs 505, forming an elastic reset structure, and the front and rear ends of the reset spring 505 are connected with the inside of the lifting frame 102 and the end surface of the inclined block 502 respectively.

[0035] When the crane 109 hoists the goods to make the mounting frame 107 force down, the mounting frame 107 drives the top rod 501 and the pulley 504 to move down while the driving block 402 is clamped into the slot block 403 to limit the position of the translation frame 106, the pulley 504 is in contact with the inclined surface of the inclined block 502 and slides relatively, the inclined block 502 is pushed to move to the front side, the return spring 505 is compressed, the inclined block 502 drives the baffle 503 to move to the front side to be directly below the laser ranging sensor array 201, blocks the laser emitting path of the laser ranging sensor array 201, and stops the position detection function, so as to avoid the damage of the adjusting motor 202 caused by the false triggering, after the hoisting operation is completed, the mounting frame 107 moves up to reset under the action of the pressure spring 401, to drive the top rod 501 and the pulley 504 to move up and be out of contact with the inclined surface of the inclined block 502, the return spring 505 is reset elastically, the inclined block 502 and the baffle 503 are driven to move back to reset, and the baffle 503 is out of the area below the laser ranging sensor array 201, so that the laser emitting and position detection functions are restored.

[0036] As shown in Figure 1 The mobile frame 1 is centrally provided with an electric push rod 601, and the two ends of the telescopic rod of the electric push rod 601 are fixedly connected with the two ends of the lifting frame 102. The lifting frame 102 is vertically provided with a distance sensor 602 at the front side, which is used for detecting the relative height of the lifting frame 102 and the ground. The electric push rod 601 and the distance sensor 602 are electrically connected with the controller 104 to form a closed-loop control structure for height adjustment. By operating the controller 104 to send a control instruction to the electric push rod 601, the telescopic end of the electric push rod 601 can be driven to extend or retract, thereby driving the lifting frame 102 to realize vertical height adjustment along the mobile frame 1. During the movement of the lifting frame 102, the distance sensor 602 moves synchronously with the lifting frame 102, collects height data of the lifting frame 102 from the ground in real time, and transmits the data to the controller 104. After receiving the height data, the controller 104 displays the numerical value on the screen synchronously, so that the staff can obtain the current height information in real time and accurately adjust the height required for the operation. This structure design improves the adaptability of the device to different height trucks and can flexibly meet the lifting height requirements of various unloading operations.

Claims

1. A gantry crane continuous loading and unloading material transport device, characterized in that: The system includes a mobile frame (1), a lifting frame (102), a ground rail (103), a controller (104), a slide rail (105), a translation frame (106), a mounting frame (107), a sliding block (108), a hoisting machine (109), a laser rangefinder sensor array (201), an adjusting motor (202), a threaded rod (203), an adjusting block (204), and a moving assembly. Two mobile frames (1) are provided, each equipped with two wheels at its bottom. The lifting frame (102) is vertically slidably connected between the tops of the two mobile frames (1). Two ground rails (103) are provided and pre-installed and fixed to the ground in the work area. The mobile frames (1) are fitted into the grooves of the ground rails (103) via the bottom wheels. A controller (104) is installed on the left side wall of the left mobile frame (1). Slide rails (105) are symmetrically installed on both sides of the top surface of the lifting frame (102). Each pair of symmetrical slide rails (105)... A translation frame (106) is slidably connected between the two translation frames (106). A mounting frame (107) is slidably connected between the tops of the two translation frames (106) via a support column. Sliding blocks (108) are slidably connected on both sides of the mounting frame (107). A hoisting machine (109) is installed at the bottom of each sliding block (108). A laser ranging sensor array (201) is installed on the front side of the bottom of the lifting frame (102). An adjusting motor (202) is symmetrically installed on the left side of the top of the lifting frame (102). A threaded rod (203) is coaxially connected to the output shaft of the adjusting motor (202). An adjusting block (204) is threadedly connected to the threaded rod (203). Each adjusting block (204) is fixedly connected to the translation frame (106) on the corresponding side. The laser ranging sensor array (201), the adjusting motor (202), and the hoisting machine (109) are all electrically connected to the controller (104). A drive assembly is provided on the mounting frame (107).

2. A gantry crane continuous loading and unloading material transport device according to claim 1, characterized in that: The laser rangefinder sensor array (201) is provided with an integrally molded transparent protective cover.

3. A gantry crane continuous loading and unloading material transport device according to claim 1, characterized in that: The lifting frame (102) adopts a frame structure welded from rectangular steel pipes.

4. A gantry crane continuous loading and unloading material transport device according to claim 1, characterized in that: The moving assembly includes a drive motor (301), a synchronous pulley (302), a synchronous belt (303), and a connecting block (304). The drive motor (301) is symmetrically mounted on the bottom left side of the mounting bracket (107). The synchronous pulley (302) is coaxially connected to the output shaft of the drive motor (301). On the right side of the mounting bracket (107), corresponding to the synchronous pulley (302), two other synchronous pulleys (302) are rotatably mounted through bearing seats. A synchronous belt (303) is wound between each pair of symmetrical synchronous pulleys (302). The front and rear ends of the bottom of the sliding block (108) are connected to the connecting block (304). The connecting block (304) on the left sliding block (108) is fixed to the inner circumference of the synchronous belt (303), and the connecting block (304) on the right sliding block (108) is fixed to the outer circumference of the synchronous belt (303).

5. A gantry crane continuous loading and unloading material transport device according to claim 1, characterized in that: It also includes a pressure spring (401), a locking block (402), and a groove block (403). The outer side of the support column on the translation frame (106) is fitted with a pressure spring (401). The upper and lower ends of the pressure spring (401) are fixedly connected to the inner wall of the mounting frame (107) and the lower end of the support column, respectively. Multiple locking blocks (402) are fixedly connected at intervals at the center of the front and rear sides of the bottom of the mounting frame (107). The locking blocks (402) are set through the translation frame (106). Grooves (403) are installed at the center of both sides of the top of the lifting frame (102). Several slots that are adapted to the locking blocks (402) are opened on the groove blocks (403). The locking blocks (402) and the slots of the groove blocks (403) form a locking engagement relationship.

6. A gantry crane continuous loading and unloading material transport device according to claim 1, characterized in that: It also includes a top rod (501), an inclined block (502), a baffle (503), a pulley (504), and a return spring (505). The top rod (501) is symmetrically connected to the center of the front side inside the mounting frame (107). The bottom end of the top rod (501) is rotatably connected to the pulley (504). The upper front side of the lifting frame (102) is slidably connected to two inclined blocks (502) through two guide rods. The rear side wall of the inclined block (502) is set as an inclined surface. The pulley (504) and the inclined surface of the corresponding side inclined block (502) form a sliding fit relationship. The bottom of the two inclined blocks (502) is connected to the baffle (503). The guide rod on the inclined block (502) is sleeved with a return spring (505). The two ends of the return spring (505) are respectively connected to the inside of the lifting frame (102) and the end face of the inclined block (502).

7. A gantry crane continuous loading and unloading material transport device according to claim 1, characterized in that: It also includes an electric push rod (601) and a distance sensor (602). An electric push rod (601) is installed in the center of the moving frame (1). The ends of the telescopic rods of the electric push rods (601) on both sides are fixedly connected to the two ends of the lifting frame (102). A distance sensor (602) is vertically installed on the front side of the lifting frame (102). The electric push rod (601) and the distance sensor (602) are electrically connected to the controller (104).

8. A gantry crane continuous loading and unloading material transport device according to claim 1, characterized in that: The inner wall of the groove of the ground rail (103) is coated with a polytetrafluoroethylene lubricating coating.

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