An automatic loading system for weighbridge

Abstract

The present invention discloses an automatic loading system for a weighbridge, comprising a track, a cart unit, and a ramp body, wherein the track is arranged on the top of the weighbridge unit, the cart unit can carry a truck, two groups of ramp bodies are arranged at both ends of the track, an obstacle clearing component is arranged at the bottom of a bearing plate, and the obstacle clearing component comprises an obstacle clearing head, and a gap is provided between the obstacle clearing head and the track and the weighbridge unit, and the obstacle clearing head can clear the material on the track by reciprocating motion. When the truck travels along the ramp body onto the bearing plate, the weighbridge unit can weigh the truck, the driving component can drive the cart unit to reciprocate, and when the truck moves with the cart unit, the unloading unit starts to transport the material into the truck, and the truck is loaded during the movement, thereby ensuring the uniformity and stability of the loading, and the weighbridge unit can monitor the weight of the truck in real time, and after the truck is loaded, it drives down from the ramp body at the other end of the track; the obstacle clearing component reciprocates with the cart unit, and the obstacle clearing head can clear the material on the track, thereby improving the reliability of loading.

Description

Technical Field

[0001] The invention relates to the technical field of bulk cargo weighing equipment and peripheral supporting facilities thereof, and in particular to an automatic loading system for a floor scale. Background Art

[0002] A floor scale is also called a truck scale. It is a large scale set on the ground. It is usually used to weigh the tonnage of cargo carried by a truck. It is the main weighing equipment used by factories, mines, businesses, etc. for measuring bulk goods.

[0003] In the prior art, the loading method is to install a weighbridge on the ground, the truck driver drives the car onto the weighbridge, and then the loader on the side opens the discharge valve of the silo above the weighbridge to discharge the material, and instructs the driver to move the truck according to the height of the pile until it is full; there are also industrial monitors installed near the discharge port to remotely monitor the loading situation, and instruct the driver to move the truck through the speaker voice, or set a display in front to let the truck driver judge the loading situation by himself and then move the vehicle. During the loading process, the truck driver needs to move the vehicle according to the instructions of the loading operator or the loading status of the on-site video; the upper unloading often fluctuates, and if it is not moved in time, it will be too full, causing the material to spill out and fall on the weighbridge. At the same time, the overloaded material needs to be manually flattened to avoid spilling on the road due to bumps during road transportation; after loading a car, the weighbridge needs to be cleaned, and the loading efficiency is low; because during the loading process, the truck needs to move, resulting in frequent starting and braking, which causes impact damage to the weighbridge, and the life of the weighbridge is greatly reduced.

[0004] Therefore, how to change the current situation in the prior art where loading on a scale requires frequent movement of the vehicle and uneven material loading leads to low loading efficiency has become an urgent problem to be solved by those skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide an automatic loading system for a weighbridge to solve the problems existing in the above-mentioned prior art and enable a truck to be loaded stably and evenly on the weighbridge.

[0006] To achieve the above-mentioned purpose, the present invention provides the following scheme: The present invention provides an automatic loading system for a floor scale, comprising a track, a cart unit, and a ramp body, wherein the track is arranged at the top of the floor scale unit, the track is connected to the floor scale unit, the cart unit can carry a truck, the cart unit comprises a driving assembly, a bearing plate, and an obstacle removal assembly, the driving assembly can drive the cart unit to reciprocate, the cart unit can be slidably arranged on the track, the number of the ramp bodies is two groups, the two groups of the ramp bodies are arranged at both ends of the track, the higher end of the ramp body is arranged close to the track, the higher end of the ramp body is flush with the top surface of the bearing plate, and the top surface of the ramp body is inclined downward from the end close to the track; the obstacle removal assembly is arranged at the bottom of the bearing plate, the obstacle removal assembly comprises an obstacle removal head, there is a gap between the obstacle removal head and the track and the floor scale unit, and the reciprocating motion of the obstacle removal head can clear the material on the track.

[0007] Preferably, the cart unit also includes a frame body and wheels, the load-bearing plate is arranged on the top of the frame body, the wheels are rotatably connected to the frame body, the wheels are slidably arranged on the track, the wheels are grooved double-edge wheels, and the cross-section of the track is a rectangle that matches the groove of the wheels.

[0008] Preferably, the obstacle clearing assembly also includes a mounting bracket and a hinge shaft, the mounting bracket is detachably connected to the frame body and the connection position can be adjusted, the obstacle clearing head is hinged to the mounting bracket by means of the hinge shaft, the axis of the hinge shaft is parallel to the axis of the wheel, the cross-section of the obstacle clearing head is V-shaped, and the tip of the obstacle clearing head is parallel to the track; two groups of the obstacle clearing assemblies are symmetrically arranged on both sides of the wheel, the obstacle clearing heads are arranged in a direction away from the wheel, and the number of the obstacle clearing assemblies is twice the number of the wheels.

[0009] Preferably, the maximum width of the obstruction clearing head is wider than the width of the track, and the height of the part of the obstruction clearing head protruding from the track is higher than the height of the tip of the obstruction clearing head; a wear-resistant plate is provided on the side of the obstruction clearing head away from the wheel, and the wear-resistant plate is detachably connected to the obstruction clearing head, and the wear-resistant plate can abut against the track and the scale unit; the mounting bracket is also provided with an adjusting bolt, and the adjusting bolt is threadedly connected to the mounting bracket, and the adjusting bolt is located at the top of the obstruction clearing head, and the obstruction clearing head can abut against the adjusting bolt.

[0010] Preferably, the driving assembly includes a wire rope, a pulley, and a driver. The pulley is rotatably arranged in the ramp body. There are two pulleys and they correspond one to one to the ramp body. One end of the wire rope is detachably connected to one end of the cart unit. The other end of the wire rope passes around the two pulleys in turn and is connected to the other end of the cart unit. The driver is transmission connected to the pulley.

[0011] Preferably, a ring, a pin, a connecting block and an adjusting screw are arranged between the steel wire rope and the cart unit, the steel wire rope is passed around the ring and clamped by a rope clamp, the adjusting screw is hinged to the ring by means of the pin, the connecting block is rotatably connected to the cart unit, the connecting block is sleeved on the outside of the adjusting screw, the adjusting screw is threadedly connected to the connecting block, and an adjusting handwheel is connected to the end of the adjusting screw away from the steel wire rope.

[0012] Preferably, a lock assembly is arranged between the ramp body and the cart unit, and the lock assembly includes a lock hook plate, a lock hook seat, a hammer, and an electromagnet. The lock hook plate is hinged to the ramp body, and the lock hook seat is arranged on the cart unit. One end of the lock hook plate can be engaged with the lock hook seat, and the hammer is hinged to the other end of the lock hook plate. The hammer is arranged at the top of the electromagnet and can abut against the electromagnet. The hinge point between the lock hook plate and the ramp body is located between the lock hook seat and the hammer; a guide plate is arranged on the side of the lock hook seat close to the ramp body, and the guide plate is arranged to be inclined downward from the top of the lock hook seat.

[0013] Preferably, the cart unit further comprises a safety stopper, which comprises a wooden stopper arm, which is rotatably connected to the frame body and can extend out of the load-bearing plate.

[0014] Preferably, the automatic loading system for the weighbridge also includes a measuring gate body and a control unit. Along the driving direction of the truck, the measuring gate body is arranged on one side of the slope body located at the rear, and the measuring gate body is located on the side of the slope body away from the cart unit. The measuring gate body includes a column and a lifting rod body, and the lifting rod body is rotatably connected to the column. The measuring gate body also has a license plate recognizer, a laser radar ranging sensor, an anti-collision detector and a traffic light; the measuring gate body, the cart unit and the weighbridge unit are all connected to the control unit.

[0015] Preferably, the longitudinal cross-section of the slope body is triangular, and the top surface of the slope body includes a plurality of steel bars arranged side by side, and the steel bars are perpendicular to the relative sliding direction of the cart unit and the track.

[0016] Compared with the prior art, the present invention has achieved the following technical effects: the automatic loading system for a floor scale of the present invention comprises a track, a cart unit and a ramp body, the track is arranged at the top of the floor scale unit, the track is connected to the floor scale unit, the cart unit can carry a truck, the cart unit comprises a driving assembly, a bearing plate and an obstacle removal assembly, the driving assembly can drive the cart unit to reciprocate, the cart unit can be slidably arranged on the track, the number of the ramp bodies is two groups, the two groups of ramp bodies are arranged at both ends of the track, the higher end of the ramp body is arranged close to the track, the higher end of the ramp body is flush with the top surface of the bearing plate, and the top surface of the ramp body is inclined downward from the end close to the track; the obstacle removal assembly is arranged at the bottom of the bearing plate, the obstacle removal assembly comprises an obstacle removal head, there is a gap between the obstacle removal head and the track and the floor scale unit, and the reciprocating motion of the obstacle removal head can clear the material on the track. By utilizing the automatic loading system for the weighbridge of the present invention, the truck travels along the slope onto the load-bearing plate, the weighbridge unit can weigh the truck, the driving component can drive the cart unit to reciprocate, and when the truck moves with the cart unit, the unloading unit starts to transport materials into the truck, and the truck is loaded during movement, thereby ensuring the uniformity and stability of loading. The weighbridge unit can monitor the weight of the truck in real time, and after the truck is loaded, it drives down the slope at the other end of the track. In addition, the present invention is provided with a barrier clearing component, which reciprocates with the cart unit, and the barrier clearing head can clear the materials on the track to prevent the falling materials from affecting the reciprocating motion of the cart unit, thereby improving the loading reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the automatic loading system for weighbridge of the present invention when it is working;

[0019] Figure 2 It is a side view schematic diagram of the automatic loading system for weighbridge of the present invention when it is working;

[0020] Figure 3 It is a partial structural schematic diagram of the automatic loading system for weighbridge of the present invention;

[0021] Figure 4 It is a front view schematic diagram of a barrier clearing assembly of an automatic loading system for a floor scale of the present invention;

[0022] Figure 5 It is a side view schematic diagram of the obstacle removal component of the automatic loading system for the floor scale of the present invention;

[0023] Figure 6 It is a top view schematic diagram of the obstacle removal component of the automatic loading system for the floor scale of the present invention;

[0024] Figure 7 It is a partial structural schematic diagram of a driving assembly of an automatic loading system for a floor scale of the present invention;

[0025] Among them, 100a is an automatic loading system for a weighbridge, 1 is a track, 2 is a cart unit, 201 is a drive assembly, 202 is a load-bearing plate, 203 is a barrier assembly, 204 is a barrier head, 205 is a frame body, 206 is a wheel, 207 is a mounting bracket, 208 is a hinge shaft, 209 is a wear-resistant plate, 210 is an adjusting bolt, 211 is a wire rope, 212 is a rope pulley, 213 is a sleeve ring, and 214 is a pin shaft. , 215 is a connecting block, 216 is an adjusting screw, 217 is an adjusting hand wheel, 218 is a safety car stopper, 3 is a slope body, 301 is a steel bar, 4 is a floor scale unit, 5 is a locking assembly, 501 is a locking hook plate, 502 is a locking hook seat, 503 is a hammer, 504 is an electromagnet, 505 is a guide plate, 6 is a measuring gate body, 601 is a column, 602 is a lifting rod body, 7 is a unloading unit, 8 is a truck, and 9 is a control unit. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The object of the present invention is to provide an automatic loading system for a weighbridge to solve the problems existing in the above-mentioned prior art and enable a truck to be loaded stably and evenly on the weighbridge.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Please refer to Figure 1 - 7, among which, Figure 1 This is a schematic diagram of the automatic loading system for the weighbridge of the present invention when it is working. Figure 2 It is a side view schematic diagram of the automatic loading system for weighbridge of the present invention when it is working. Figure 3 It is a partial structural schematic diagram of the automatic loading system for weighbridge of the present invention, Figure 4 It is a front view schematic diagram of the obstacle removal component of the automatic loading system for the weighbridge of the present invention, Figure 5It is a side view schematic diagram of the obstacle removal component of the automatic loading system for the floor scale of the present invention, Figure 6 1 is a top view schematic diagram of an obstacle removal component of an automatic loading system for a floor scale of the present invention, Figure 7 This is a partial structural schematic diagram of the driving assembly of the automatic loading system for the weighbridge of the present invention. It should be explained here that: Figure 3 In order to better illustrate the system structure, two ramp bodies 3 are disposed at both ends of the cart unit 2 , and the actual ramp bodies 3 are located at both ends of the track 1 .

[0030] The present invention provides an automatic loading system 100a for a weighbridge, comprising a track 1, a cart unit 2, and a ramp body 3. The track 1 is arranged on the top of the weighbridge unit 4, the track 1 is connected to the weighbridge unit 4, the cart unit 2 can carry a truck 8, the cart unit 2 comprises a driving component 201, a load plate 202, and a barrier clearing component 203, the driving component 201 can drive the cart unit 2 to reciprocate, the cart unit 2 can be slidably arranged on the track 1, the number of the ramp bodies 3 is two groups, and the two groups of ramp bodies 3 are arranged on the track 1. The slope body 3 is arranged at both ends of the track 1, and the higher end of the slope body 3 is arranged close to the track 1. The higher end of the slope body 3 is flush with the top surface of the supporting plate 202, and the top surface of the slope body 3 is inclined downward from the end close to the track 1; the obstacle clearing component 203 is arranged at the bottom of the supporting plate 202, and the obstacle clearing component 203 includes an obstacle clearing head 204. There is a gap between the obstacle clearing head 204 and the track 1 and the weighing unit 4. The reciprocating motion of the obstacle clearing head 204 can clear the materials on the track 1.

[0031] By utilizing the automatic loading system 100a for the weighbridge of the present invention, the truck 8 travels along the slope body 3 to the load-bearing plate 202, the weighbridge unit 4 can weigh the truck 8, the driving component 201 can drive the cart unit 2 to reciprocate, and when the truck 8 moves with the cart unit 2, the unloading unit 7 starts to transport materials into the truck 8, and the truck 8 is loaded during the movement, thereby ensuring the uniformity and stability of the loading. The weighbridge unit 4 can monitor the weight of the truck 8 in real time, and after the truck 8 is loaded, it drives down from the slope body 3 at the other end of the track 1; in addition, the present invention is provided with a barrier clearing component 203, and the barrier clearing component 203 reciprocates with the cart unit 2, and the barrier clearing head 204 can clear the materials on the track 1 to prevent the falling materials from affecting the reciprocating motion of the cart unit 2, thereby improving the loading reliability.

[0032] The cart unit 2 further includes a frame body 205 and wheels 206. The load plate 202 is disposed on the top of the frame body 205. The wheels 206 are rotatably connected to the frame body 205. The wheels 206 are slidably disposed on the track 1. The cart unit 2 is provided with wheels 206 to reduce the resistance to reciprocating motion and improve the stability of the movement of the truck 8. In this specific embodiment, the wheels 206 are grooved double-edge wheels, and the track 1 is a shape that matches the groove of the wheels 206. The wheels 206 cooperate with the track 1 to limit the movement trajectory of the cart unit 2, avoid the misalignment of the truck 8, and improve the movement accuracy.

[0033] Specifically, the obstacle clearing component 203 also includes a mounting bracket 207 and a hinge shaft 208. The mounting bracket 207 is detachably connected to the frame body 205 and the connection position can be adjusted to ensure that the obstacle clearing head 204 can abut against the track 1 to remove the materials dropped on the track 1. The obstacle clearing head 204 is hinged to the mounting bracket 207 by the hinge shaft 208. The axis of the hinge shaft 208 is parallel to the axis of the wheel 206. During the reciprocating motion of the obstacle clearing head 204, if the track 1 is uneven, the obstacle clearing head 204 and the mounting bracket 207 rotate relative to each other, so that the obstacle clearing head 204 can smoothly cross the obstacle; the cross section of the obstacle clearing head 204 is V-shaped. 4 is parallel to the track 1. During the reciprocating motion of the obstacle clearing head 204, the tip of the obstacle clearing head 204 faces forward in the direction of motion, and the fallen materials are pushed away and removed, ensuring that the wheel 206 can reciprocate along the track 1. In order to ensure the cleaning efficiency of the obstacle clearing assembly 203, two groups of obstacle clearing assemblies 203 are symmetrically arranged on both sides of the wheel 206, and the obstacle clearing head 204 is arranged in a direction away from the wheel 206. The number of obstacle clearing assemblies 203 is twice the number of wheels 206. Obstacle clearing assemblies 203 are arranged on both sides of each wheel 206. When the moving direction of the cart unit 2 changes, the obstacle clearing assembly 203 can clean the materials, ensuring the normal operation of the cart unit 2.

[0034] In this specific embodiment, the maximum width of the obstacle clearing head 204 is wider than the width of the track 1, and the height of the part of the obstacle clearing head 204 protruding from the track 1 is higher than the height of the tip of the obstacle clearing head 204, so that the obstacle clearing head 204 can not only contact the track 1, but also abut against the scale unit 4, thereby clearing the materials dropped on the scale unit 4, and preventing the dropped materials from affecting the weighing of the scale unit 4; in order to extend the service life of the obstacle clearing head 204, a wear-resistant plate 209 is provided on the side of the obstacle clearing head 204 away from the wheel 206, and the wear-resistant plate 209 can abut against the track 1 and the scale unit 4, and the wear-resistant plate 209 is detachably connected to the obstacle clearing head 204, and the wear-resistant plate 209 is convenient to replace after being worn, thereby reducing the use cost; in addition, the mounting bracket 207 is also provided with an adjusting bolt 210, and the adjusting bolt 210 is threadedly connected to the mounting bracket 207, and the adjusting bolt 210 is located at the top of the obstacle clearing head 204, and the obstacle clearing head 204 can abut against the adjusting bolt 210. By adjusting the relative position of the adjusting bolt 210 and the mounting bracket 207, the rotation angle of the obstacle clearing head 204 can be limited, thereby preventing the obstacle clearing head 204 from being "lifted" too high, and ensuring that the obstacle clearing head 204 can smoothly play the role of clearing materials.

[0035] More specifically, the driving assembly 201 includes a wire rope 211, a pulley 212, and a driver. The pulley 212 is rotatably disposed in the ramp body 3. There are two pulleys 212 and they correspond one to one to the ramp body 3. One end of the wire rope 211 is detachably connected to one end of the cart unit 2. The other end of the wire rope 211 passes around the two pulleys 212 in sequence and is connected to the other end of the cart unit 2. The driver is transmission-connected to the pulley 212. The driver drives the pulley 212 to rotate. Driven by the pulley 212, the wire rope 211 pulls the cart unit 2 to move along the track 1. The driving assembly 201 consists of two groups to ensure the normal reciprocating motion of the cart unit 2.

[0036] In addition, a ring 213, a pin 214, a connecting block 215, and an adjusting screw 216 are arranged between the wire rope 211 and the cart unit 2. The wire rope 211 passes through the ring 213 and is clamped by a rope clamp. The adjusting screw 216 is hinged to the ring 213 by means of the pin 214. The connecting block 215 is rotatably connected to the cart unit 2. The connecting block 215 is sleeved on the outside of the adjusting screw 216. The adjusting screw 216 is threadedly connected to the connecting block 215. An adjusting handwheel 217 is connected to the end of the adjusting screw 216 away from the wire rope 211. The adjusting handwheel 217 is used to drive the adjusting screw 216 to rotate, and then the wire rope 211 is tightened through the ring 213, thereby playing a tensioning role, so that the wire rope 211 and the rope wheel 212 cooperate with each other to smoothly drive the cart unit 2 to move.

[0037] Furthermore, a lock assembly 5 is provided between the ramp body 3 and the cart unit 2. The lock assembly 5 can fix the relative position of the ramp body 3 and the cart unit 2, and improve the stability and operational safety of the cart unit 2 when the truck 8 enters or exits the cart unit 2. The lock assembly 5 includes a lock hook plate 501, a lock hook seat 502, a hammer 503, and an electromagnet 504. The lock hook plate 501 is hinged to the ramp body 3, the lock hook seat 502 is provided on the cart unit 2, one end of the lock hook plate 501 can be engaged with the lock hook seat 502, the hammer 503 is hinged to the other end of the lock hook plate 501, the hammer 503 is provided on the top of the electromagnet 504, the hammer 503 can abut against the electromagnet 504, the hinge point of the lock hook plate 501 and the ramp body 3 is located between the lock hook seat 502 and the hammer 503, the lock hook plate 501 is connected to the ramp body 3, and the lock hook plate 501 and the lock hook seat When 502 is engaged, the relative position of the ramp body 3 and the cart unit 2 can be fixed. When the cart unit 2 moves, the electromagnet 504 is energized and works, and the electromagnet 504 attracts the hammer 503 until the two are in contact, the lock hook plate 501 rotates, and the lock hook plate 501 is disengaged from the lock hook seat 502, so that the cart unit 2 can move smoothly; a guide plate 505 is set on the side of the lock hook seat 502 close to the ramp body 3, and the guide plate 505 is tilted downward from the top of the lock hook seat 502. The guide plate 505 can ensure that the lock hook plate 501 moves smoothly to the lock hook seat 502 and cooperates with the lock hook seat 502 to lock the cart unit 2.

[0038] In order to further improve the safety of the truck 8, the flatbed unit 2 also includes a safety stopper 218, which includes a wooden stopper arm, which is rotatably connected to the frame body 205, and can extend out of the load board 202. When the truck 8 enters the load board 202, the wooden stopper arm "retracts" to the bottom of the load board 202. When the truck 8 completely enters the load board 202, the wooden stopper arm "extends", effectively preventing the truck 8 from slipping and improving the safety factor of loading. The wooden stopper arm is connected to a driving element for easy control. It should also be noted that a guardrail is provided on the side of the load board 202, and the guardrail cooperates with the wooden stopper arm to protect the safety of the truck 8 in all directions.

[0039] In addition, the automatic loading system 100a for the weighbridge also includes a measuring gate body 6 and a control unit 9. The measuring gate body 6 is arranged on one side of the slope body 3 located at the rear along the driving direction of the truck 8. The measuring gate body 6 is located on the side of the slope body 3 away from the car unit 2. The measuring gate body 6 includes a column 601 and a lifting rod body 602. The lifting rod body 602 is rotatably connected to the column 601. The measuring gate body 6 also has a license plate recognition device, a laser radar ranging sensor, an anti-collision detector and a traffic light. After the last loading cycle is completed, the measuring gate body 6 can raise the lifting rod body 602 to avoid subsequent personnel or vehicles affecting the loading process, thereby improving the test accuracy of the weighbridge unit 4. The measuring gate body 6, the car unit 2, and the weighbridge unit 4 are all connected to the control unit 9, which can control the working state of the measuring gate body 6, the drive assembly 201, the weighbridge unit 4, the locking assembly 5, and the unloading unit 7, thereby improving the automation of the system and reducing the labor burden of the operator.

[0040] In other specific embodiments of the present invention, the longitudinal cross-section of the slope body 3 is a triangle, and the top surface of the slope body 3 includes a plurality of steel bars 301 arranged side by side. The steel bars 301 are perpendicular to the relative sliding direction of the cart unit 2 and the track 1. The steel bars 301 can also increase the friction force, reduce the difficulty of the truck 8 to climb the slope, and improve the safety factor of operation.

[0041] In the automatic loading system 100a for weighbridges of the present invention, when the truck 8 travels to the measuring gate body 6, the license plate recognizer can read the license plate information. After the system confirms that it is correct, the lifting rod body 602 is lifted, and the truck 8 travels to the cart unit 2 through the slope body 3. The lifting rod body 602 falls, and the system controls the locking assembly 5, the electromagnet 504 is energized, and the electromagnet 504 attracts the hammer 503 to move downward, the lock hook plate 501 is disengaged from the lock hook seat 502, the weighbridge unit 4 weighs and records, and the driving assembly 201 uses the wire rope 211 to pull the cart unit 2 to move at a set speed. When it reaches the unloading unit 7, it stops moving, and the unloading unit 7 starts unloading. The weighbridge Unit 4 monitors the weight of the truck 8 in real time. When the initial loading weight is reached, the drive component 201 uses the wire rope 211 to drive the truck 8 to move at the calculated speed and unload at the same time, loading and moving at the same time until it reaches the final loading position, stops unloading, and the weighing unit 4 weighs and records. Finally, the drive component 201 is started to drive the cart unit 2 to the ramp body 3 at the other end of the track. The lock component 5 here works, the lock hook plate 501 is engaged with the lock hook seat 502, fixing the relative position of the cart unit 2 and the ramp body 3, and the wooden barrier arm of the safety car stop 218 retracts, allowing the truck 8 to drive away smoothly. The cart unit 2 is reset to enter the next loading cycle.

[0042] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An automatic loading system for a weighbridge, characterized in that: It comprises a track, a cart unit and a ramp body, wherein the track is arranged at the top of the weighbridge unit, the track is connected to the weighbridge unit, the cart unit can carry a truck, the cart unit comprises a driving assembly, a bearing plate and an obstacle clearing assembly, the driving assembly can drive the cart unit to reciprocate, the cart unit can be slidably arranged on the track, the number of the ramp bodies is two groups, the two groups of the ramp bodies are arranged at both ends of the track, the higher end of the ramp body is arranged close to the track, the higher end of the ramp body is flush with the top surface of the bearing plate, and the top surface of the ramp body is inclined downward from the end close to the track; the obstacle clearing assembly is arranged at the bottom of the bearing plate, the obstacle clearing assembly comprises an obstacle clearing head, there is a gap between the obstacle clearing head and the track and the weighbridge unit, and the reciprocating movement of the obstacle clearing head can clear the materials on the track; The cart unit further comprises a frame body and wheels, the bearing plate is arranged on the top of the frame body, the wheels are rotatably connected to the frame body, the wheels are slidably arranged on the track, the wheels are groove-type double-edge wheels, and the cross section of the track is a rectangle that matches the groove of the wheels; The obstacle clearing assembly further comprises a mounting bracket and a hinge shaft, wherein the mounting bracket is detachably connected to the frame body and the connection position is adjustable, the obstacle clearing head is hinged to the mounting bracket by means of the hinge shaft, the axis of the hinge shaft is parallel to the axis of the wheel, the cross section of the obstacle clearing head is V-shaped, and the tip of the obstacle clearing head is parallel to the track; two groups of obstacle clearing assemblies are symmetrically arranged on both sides of the wheel, the obstacle clearing heads are arranged in a direction away from the wheel, and the number of obstacle clearing assemblies is twice the number of wheels; The maximum width of the obstacle clearing head is wider than the width of the track, and the height of the part of the obstacle clearing head protruding from the track is higher than the height of the tip of the obstacle clearing head; a wear-resistant plate is provided on the side of the obstacle clearing head away from the wheel, and the wear-resistant plate is detachably connected to the obstacle clearing head, and the wear-resistant plate can abut against the track and the scale unit; the mounting bracket is also provided with an adjusting bolt, and the adjusting bolt is threadedly connected to the mounting bracket, and the adjusting bolt is located at the top of the obstacle clearing head, and the obstacle clearing head can abut against the adjusting bolt.

2. The automatic loading system for a weighbridge according to claim 1, characterized in that: The driving assembly includes a wire rope, a pulley, and a driver. The pulley is rotatably arranged in the ramp body. There are two pulleys and they correspond one to one to the ramp body. One end of the wire rope is detachably connected to one end of the cart unit. The other end of the wire rope passes around the two pulleys in turn and is connected to the other end of the cart unit. The driver is transmission connected to the pulley.

3. The automatic loading system for a weighbridge according to claim 2, characterized in that: A ring, a pin, a connecting block and an adjusting screw are arranged between the wire rope and the cart unit. The wire rope passes over the ring and is clamped by a rope clamp. The adjusting screw is hinged to the ring by means of the pin. The connecting block is rotatably connected to the cart unit. The connecting block is sleeved on the outside of the adjusting screw. The adjusting screw is threadedly connected to the connecting block. An adjusting handwheel is connected to the end of the adjusting screw away from the wire rope.

4. The automatic loading system for a weighbridge according to claim 1, characterized in that: A lock assembly is arranged between the ramp body and the cart unit, and the lock assembly includes a lock hook plate, a lock hook seat, a hammer, and an electromagnet. The lock hook plate is hinged to the ramp body, and the lock hook seat is arranged on the cart unit. One end of the lock hook plate can be engaged with the lock hook seat, and the hammer is hinged to the other end of the lock hook plate. The hammer is arranged on the top of the electromagnet and can abut against the electromagnet. The hinge point between the lock hook plate and the ramp body is located between the lock hook seat and the hammer; a guide plate is arranged on a side of the lock hook seat close to the ramp body, and the guide plate is arranged to be inclined downward from the top of the lock hook seat.

5. The automatic loading system for a weighbridge according to claim 1, characterized in that: The cart unit also includes a safety stopper, which includes a wooden stopper arm. The wooden stopper arm is rotatably connected to the frame body and can extend out of the load-bearing plate.

6. The automatic loading system for a weighbridge according to claim 1, characterized in that: It also includes a measuring gate body and a control unit. Along the driving direction of the truck, the measuring gate body is arranged on one side of the slope body located at the rear, and the measuring gate body is located on the side of the slope body away from the cart unit. The measuring gate body includes a column and a lifting rod body, and the lifting rod body is rotatably connected to the column. The measuring gate body also has a license plate recognition device, a laser radar ranging sensor, an anti-collision detector and a traffic light; the measuring gate body, the cart unit and the weighing scale unit are all connected to the control unit.

7. The automatic loading system for a weighbridge according to claim 1, characterized in that: The longitudinal cross-section of the slope body is triangular, and the top surface of the slope body includes a plurality of steel bars arranged side by side, wherein the steel bars are perpendicular to the relative sliding direction of the cart unit and the track.

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