Material lift with intelligent weighing and automatic path finding

Abstract

The present invention discloses a material elevator with intelligent weighing and automatic path finding functions, including a driving mechanism, a lifting mechanism and a sliding lifting mechanism. The driving mechanism is installed on a base and drives the base to move. The lifting mechanism has a multi-stage telescopic oil cylinder. The top of the lifting mechanism is fixedly connected with a support plate. The lifting mechanism is installed on the base, and the sliding lifting mechanism is installed on the support plate. A working platform is installed on the sliding lifting mechanism. The present invention can realize the automatic driving function by setting a laser transmitter in conjunction with a preset laser positioning mark on the forward route. By setting a laser transmitter and a photoelectric detector, the intelligent anti-collision function of the elevator can be realized. By setting a liquid pressure sensor in conjunction with a central main controller, the automatic weighing function of the material can be realized. The lifting structure is installed on the base, and the lifting structure itself has a certain height, so it is more convenient to transport materials to a high place outdoors. The elevator can realize two movements: extension and retraction.

Description

Technical Field

[0001] The invention relates to a hydraulic lift, in particular to a material lift with intelligent weighing and automatic path finding functions, belonging to the technical field of lifts. Background Art

[0002] As a lifting and feeding device, the loading lift plays a very important role in both the production and manufacturing of enterprises and our daily life. The main function of the loading lift platform is to lift heavy objects. It is common in many places, such as construction site workers use it to lift building materials, and the express industry uses it for express delivery. At present, most material transfer lifts are used to lift some objects or people to a specific height, which is very common in industrial equipment applications.

[0003] Existing material lifts include a base, an electro-hydraulic control mechanism, and a lifting mechanism. Wheels are usually arranged under the base so that the entire lift can move on the ground. The lifting mechanism includes an outer cylinder fixed and vertically arranged on the base, a multi-section telescopic cylinder arranged in a socket in the outer cylinder, and a support platform fixedly connected to the innermost telescopic cylinder. The electro-hydraulic control mechanism is also arranged on the base, which usually includes a motor and an oil tank. Under the control of the electro-hydraulic control mechanism, the lift can achieve two movements: extension and retraction. When the lifting mechanism needs to rise, the hydraulic oil generates a certain pressure under the action of the hydraulic pump.

[0004] The telescopic cylinders in the outer cylinder move upward from the outer layer to the inner layer in turn, so as to raise the support platform and lift the heavy objects; when the lifting mechanism descends, the telescopic cylinders from the inner layer to the outer layer move downward in turn, and finally, the telescopic cylinders are located in the outer cylinder, and the lifting mechanism is in a retracted state. Since the lifting device is installed on the base and the lifting device itself has a certain height, it is more convenient to transport materials to high places outdoors.

[0005] However, when the elevator encounters a working scene with a certain slope, it is often unable to accurately transport materials to the destination, which limits the use of the elevator; when the elevator is working inside the factory, the complex road conditions caused by the movement of people often lead to car-hit accidents; when the elevator is manually operated, it will cause a situation of redundant personnel; when the elevator is lifting materials, the weight of the materials will cause damage to the lifting mechanism. Summary of the invention

[0006] The purpose of the utility model is to provide a material elevator with intelligent weighing and automatic path-finding functions, in which materials can be lifted and lowered and moved left and right, thereby improving the working efficiency and accuracy of material transportation on the top platform when the elevator is in an open state.

[0007] In order to solve the above problems, the present invention provides a technical solution:

[0008] Material lift with intelligent weighing and automatic path finding functions, including:

[0009] A driving mechanism is installed on the base and drives the base to move;

[0010] A lifting mechanism, wherein the lifting mechanism has a multi-stage telescopic cylinder, a support plate is fixedly connected to the top of the lifting mechanism, and the lifting mechanism is installed on a base;

[0011] A sliding jacking mechanism is installed on the support plate, and a working platform is installed on the sliding jacking mechanism;

[0012] The base is also equipped with a laser transmitter and a central processing unit. The laser transmitter is connected to a photoelectric detector. The photoelectric detector has an avalanche photodiode built in. The photoelectric detector is connected to a buzzer and synchronized in real time through the central processing unit. Anti-collision belts are installed around the base. The anti-collision belts are connected to pressure sensors. The pressure sensors realize real-time feedback of pressure. The central processing unit has a built-in linear regression fitting curve and an ant colony algorithm model. The ant colony algorithm model is written in Python and synchronized with a digital map. Laser positioning marks with highly reflective reflective plates are installed on the walls or pillars along the elevator's running path. The laser transmitter emits a laser beam, and the photoelectric detector receives the laser beam reflected by the surrounding positioning marks. The on-board computer calculates the current position and direction of movement of the vehicle and calculates the current position and direction of movement of the vehicle through the built-in The digital map is compared to correct the orientation; the digital map is drawn by topological mapping method, various special nodes in the working environment are marked on the electronic map, and the connection relationship between these nodes is represented by connecting lines between nodes, so as to establish an electronic map model composed of points and lines without obstacle features; the path planning of the automatic driving of the elevator is realized by the ant colony algorithm, firstly, the starting point in the map is established, the pheromone concentration is initialized, and the initialization pheromone concentration is updated by iteration; m ants are placed at the starting point, and by finding the path in sequence, it is continuously determined whether it is the end point; after all m ants reach the end point, the path length is compared and calculated to find the optimal solution; the optimal path is transmitted to the central processing unit, and the algorithm ends. The central processing unit realizes the automatic material transportation function of the elevator according to the path found by the optimal solution and combined with the intelligent obstacle avoidance module;

[0013] A hydraulic sensor is installed in the hydraulic cylinder circuit of the multi-stage telescopic cylinder. The hydraulic sensor measures the pressure P value in the hydraulic circuit of the elevator. The measured pressure P value is transmitted to the central processor through the AD sampling method. The standard weight block is used to obtain the corresponding values ​​of the pressure value P and the weight M of the heavy object. The pressure P and the weight M are linearly fitted according to the linear regression algorithm in machine learning to obtain the pressure-weight curve, which is stored in the central processor. The central processor calculates the specific value of the weight of the lifted material based on the actual hydraulic value P received using the above-mentioned fitted pressure-weight curve. The calculated material weight is transmitted to the display screen through the CAN bus, and the display screen displays the material weight in real time, and realizes data summary statistics, thereby realizing the intelligent weighing and data summary of the material by the elevator.

[0014] Preferably, the lifting mechanism includes an outer sleeve oil cylinder arranged on the base, and a multi-section telescopic oil cylinder which is sleeved and arranged on the outer sleeve oil cylinder.

[0015] Preferably, the base further comprises a supporting mechanism, the supporting mechanism comprising a movable portion fixedly connected to the side wall of the base and a fixed portion fixedly connected to the base, the movable portion and the fixed portion being rotatably connected via a thread;

[0016] The movable part and the fixed part are provided with through holes at corresponding positions on the two side surfaces, and the inner walls of the through holes are provided with internal threads. The bottom surface of the movable part is a horizontally arranged supporting surface for supporting the base, and the bottom surface is provided with patterns. The supporting mechanism also includes a fastening component, which includes a side plate and an external threaded part adapted to the internal threads of the through holes. The side plate is provided with through holes that respectively match the through holes on the fixed part and the through holes on the movable part.

[0017] Preferably, the sliding lifting mechanism further comprises a boss, a guide mechanism is mounted on the boss, baffles are fixedly connected to both sides of the boss, the guide mechanism is located between the baffles, the guide mechanism comprises a linear guide rail, a movable slider and a ball screw pair, the linear guide rail comprises a lower guide rail and an upper guide rail, the lower guide rail and the upper guide rail are both slidably connected with a movable slider, the lower guide rail is fixedly connected to the boss, and the upper guide rail is fixedly connected to the top of the baffle;

[0018] A lifting mechanism is fixedly connected between the two moving slide blocks through a fixed rod. The lifting mechanism is installed on a ball screw pair. The ball screw pair drives the lifting mechanism to move left and right. The ball screw pair is driven by a motor.

[0019] The jacking mechanism includes a box body, a worm gear, a gear, a rack and a coupling. The worm gear, the gear, the rack and the coupling are installed on the box body. The worm gear is driven by the driving motor to move, and the movement of the worm gear causes the worm wheel to move. The worm wheel and the two gears that transmit torque are installed on the same shaft. When the worm wheel rotates, the gear also rotates, and the gear then pushes the rack up. The end of the rack is fixedly connected to the loading working platform. The working platform performs reciprocating linear motion under the guidance of the guide rail slider and the jacking mechanism, thereby realizing the lifting and translation of heavy objects.

[0020] Preferably, the lifting mechanism is installed on the ball screw pair through a guide sleeve.

[0021] Preferably, the driving mechanism is an electric motor, the base has wheels, and the whole can move on the ground.

[0022] Preferably, the support plate is also equipped with a motor, and the motor is used to drive the ball screw pair.

[0023] The beneficial effects of the present invention are: 1. The present invention can realize the automatic driving function by setting a laser transmitter in cooperation with a preset laser positioning mark on the forward route, can realize the intelligent anti-collision function of the elevator by setting a laser transmitter and a photoelectric detector, and can realize the automatic weighing function of the material by setting a liquid pressure sensor in cooperation with a central processing unit.

[0024] 2. The lifting structure is installed on the base, and the lifting structure itself has a certain height, so it is more convenient to transport materials to high places outdoors. The lift can achieve two movements: extension and retraction.

[0025] 3. The belt drive and gear drive inside the box run slowly, the transmission is smooth, and there is no abnormal noise. The contact mode of cylindrical gears during transmission is rolling contact, and the contact mode of bevel gears during transmission is also rolling contact, while the contact mode of worm gears during transmission is sliding contact. Compared with rolling contact, sliding contact has lower noise and vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are not intended to be drawn to scale. In the accompanying drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For the sake of clarity, not every component is labeled in each figure. Embodiments of various aspects of the present utility model will now be described by way of example and with reference to the accompanying drawings, in which:

[0027] Figure 1 It is a schematic diagram of the storage state of the present invention;

[0028] Figure 2 It is a schematic diagram of the working state of the present invention;

[0029] In the figure: 1. driving mechanism; 2. base; 3. lifting mechanism; 4. support plate; 5. sliding lifting mechanism; 6. working platform; 8. supporting mechanism; 81. movable part; 82. fixed part; 83. thread; 84. perforation; 51. motor; 52. guide mechanism; 53. guide sleeve; 54. fixing rod; 55. movable slider; 56. upper guide rail; 57. driving motor; 58. box; 59. lifting mechanism; 510. boss; 511. baffle; 512. lower guide rail. DETAILED DESCRIPTION

[0030] In order to better understand the technical content of the utility model, specific embodiments are cited and described as follows in conjunction with the accompanying drawings. In this disclosure, various aspects of the utility model are described with reference to the accompanying drawings, in which many illustrative embodiments are shown. The embodiments of the present disclosure are not necessarily defined to include all aspects of the utility model. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the utility model are not limited to any implementation method. In addition, some aspects disclosed in the utility model can be used alone, or in any appropriate combination with other aspects disclosed in the utility model.

[0031] like Figure 1-2 As shown, this specific implementation adopts the following technical solutions:

[0032] Example:

[0033] The present embodiment is a material elevator with intelligent weighing and automatic path-finding functions, including a driving mechanism 1 (motor), a base 2, a lifting mechanism 3 with a multi-stage telescopic cylinder, a support plate 4, a sliding jacking mechanism 5 installed on the support plate 4, and a working platform 6 installed on the sliding jacking mechanism 5. A plurality of wheels are provided under the base 2 to realize the overall movement of the elevator.

[0034] The lifting mechanism 3 comprises an outer sleeve oil cylinder arranged on the base 2, and a plurality of telescopic oil cylinders which are sleeved and arranged on the outer sleeve oil cylinder, and the support plate 4 is arranged on the innermost telescopic oil cylinder.

[0035] The sliding lifting mechanism 5 also includes a boss 510, on which a guide mechanism 52 is installed, and baffles 511 are fixedly connected to both sides of the boss 510, respectively. The guide mechanism 52 is located between the baffles 511, and the guide mechanism 52 includes a linear guide rail, a movable slider 55 and a ball screw pair. The linear guide rail includes a lower guide rail 512 and an upper guide rail 56, and the movable slider 55 is slidably connected to the lower guide rail 512 and the upper guide rail 56. The lower guide rail 512 is fixedly connected to the boss 510, and the upper guide rail 56 is fixedly connected to the top of the baffle 511;

[0036] A lifting mechanism 59 is fixedly connected between the two movable sliders 55 through a fixing rod 54. The lifting mechanism 59 is installed on a ball screw pair. The ball screw pair drives the lifting mechanism 59 to move left and right. The ball screw pair is driven by a motor.

[0037] The lifting mechanism 59 includes a box 58, a worm gear, a gear, a rack and a coupling. The worm gear, the gear, the rack and the coupling are installed on the box 58. The worm gear, the gear, the rack and the coupling are driven by the driving motor 57, which will cause the worm to move. The movement of the worm will also cause the worm wheel to move. The worm wheel and the two gears for transmitting torque are installed on the same shaft. Under the rotation of the worm wheel, the gear also rotates, and the gear then drives the rack to rise. The end of the rack is fixedly connected to the working platform 6 for feeding. The working platform 6 performs reciprocating linear motion under the guidance of the guide rail slider and the lifting mechanism 59, so that the lifting and translation of the heavy object can be realized. When in use, the lifting mechanism 59 can be used to lift the heavy object first, then translate the heavy object, and then the lifting mechanism 3 can be used to lift the whole (including the heavy object).

[0038] The base 2 also includes a support mechanism 8, which includes a movable part 81 fixedly connected to the side wall of the base 2 and a fixed part 82 fixedly connected to the base. The movable part 81 and the fixed part 82 are rotatably connected through a thread 83, and the thread 83 is arranged at the place where the fixed part 82 and the movable part 81 contact, and the movable part 81 spirally descends through the thread 83; the corresponding positions of the two side surfaces of the movable part 81 and the fixed part 82 are provided with a through hole 84, and the inner wall of the through hole 84 is provided with an internal thread. The bottom surface 85 of the movable part 81 is a horizontally arranged support surface for supporting the base 2, and the bottom surface 85 is provided with a pattern to increase the contact friction with the ground; the support mechanism also includes a fastening assembly, which includes a side plate and an external threaded member adapted to the through hole. The side plate is provided with through holes that match the through holes on the fixed part and the through holes on the movable part respectively.

[0039] The base 2 is also equipped with a laser transmitter and a central processor. The laser transmitter is connected to a photodetector. The photodetector has an avalanche photodiode built in. The photodetector is connected to a buzzer and synchronized in real time through the central processor. An anti-collision belt is installed around the base 2. The anti-collision belt and the pressure sensor realize the real-time feedback function of pressure. The central processor has a built-in linear regression fitting curve and an ant colony algorithm model. The ant colony algorithm model is written in Python language and synchronized with the digital map.

[0040] The base 2 of the material elevator is equipped with a rotatable laser transmitter, which is connected to a photoelectric detector. The laser transmitter emits pulsed laser in the direction of the elevator. The laser is scattered when it hits an obstacle, and the scattered laser is received by the photoelectric detector. The photoelectric detector has a built-in avalanche photodiode, which can detect weak light signals, record and process the time consumed from the emission of the light pulse to the reception, so as to determine the distance between the current position of the trolley and the obstacle; the photoelectric detector is connected to a buzzer, and if the obstacle enters the warning range of the photoelectric detector, the buzzer will sound an alarm; a collision belt is installed around the sound of the material elevator, and the collision belt is connected to a pressure sensor, and the pressure sensor is connected to a buzzer. When the material elevator collides with an obstacle on the side of the vehicle body, the collision belt is deformed, and the pressure sensor detects the collision data generated by the deformation, and the buzzer sounds an alarm; the buzzer is synchronized with the braking device, the buzzer sounds an alarm, and the braking system performs emergency braking on the material elevator to achieve intelligent obstacle avoidance.

[0041] A rotatable laser transmitter is installed on the base, which can realize 360° environmental detection without blind spots. Laser positioning marks with highly reflective reflective plates are installed on the walls or pillars along the running path of the material elevator. The laser scanner emits laser beams, and the photoelectric detector receives the laser beams reflected back by the surrounding positioning marks. The on-board computer calculates the current position and direction of movement of the vehicle, and corrects the orientation through the built-in digital map for comparison, thereby realizing the automatic material transportation function without human operation. The digital map is drawn by the topological map method, and various special nodes in the working environment are marked on the electronic map. The connection relationship between these nodes is represented by connecting lines between nodes, so as to establish an electronic map model composed of points and lines without obstacle features. The path planning of the automatic driving of the elevator is realized by the ant colony algorithm. First, the starting point in the map is established, the pheromone concentration is initialized, and the pheromone concentration is initialized by iterative update; m ants are placed at the starting point, and the path is searched in sequence to continuously determine whether it is the end point; after all m ants reach the end point, the path length is compared and calculated to find the optimal solution; the optimal path is transmitted to the central processor, and the algorithm ends. The central processor finds the path according to the optimal solution and combines it with the intelligent obstacle avoidance module to realize the automatic material transportation function of the elevator.

[0042] The hydraulic cylinder circuit of the lifting mechanism 3 is equipped with a hydraulic sensor, which is connected to the central processing unit. The pressure data measured by the hydraulic sensor is combined with the linear regression algorithm built into the central processing unit to achieve real-time weighing of the material.

[0043] Specifically, a hydraulic sensor is installed in the hydraulic cylinder circuit. The hydraulic sensor measures the pressure P value in the hydraulic circuit of the elevator. The measured pressure P value is sampled by AD and the data is transmitted to the central processing unit. Using a standard weight block, the corresponding values ​​of the pressure value P and the weight M of the heavy object are obtained. The pressure P and the weight M are linearly fitted according to the linear regression algorithm in machine learning to obtain a pressure-weight curve, which is stored in the central processing unit. The central processing unit calculates the specific value of the weight of the lifted material based on the actual hydraulic value P received using the above-mentioned fitted pressure-weight curve. The calculated material weight is transmitted to the display screen through the CAN bus. The display screen displays the material weight in real time and realizes data summary statistics, thereby realizing the intelligent weighing and data summary of the material by the elevator.

[0044] There is a certain linear relationship between the maximum lifting height of the material elevator and the material weight. The measured material weight is transmitted to the central processor, and the binary linear regression algorithm in machine learning is used to fit the best curve using the least squares method through the known material weight and the maximum lifting height, so that its loss function is minimized. When the fitting curve reaches the optimal state, it is integrated into the central processor. The central processor is connected to the alarm device next to the display screen through the CAN bus. When the material lifting height is about to reach the calculated maximum lifting height, the alarm device sounds an alarm. The central processor is connected to the hydraulic system. When the material lifting height reaches the maximum lifting height, the sensor in the hydraulic system receives a signal and performs emergency braking on the hydraulic device to realize the lifting device protection function.

[0045] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0047] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Material lift with intelligent weighing and automatic path finding function, characterized in that: include: A driving mechanism (1), the driving mechanism (1) is mounted on the base (2) and drives the base (2) to move; A lifting mechanism (3), the lifting mechanism (3) having a multi-stage telescopic oil cylinder, a support plate (4) being fixedly connected to the top of the lifting mechanism (3), and the lifting mechanism (3) being mounted on a base (2); A sliding lifting mechanism (5), the sliding lifting mechanism (5) is installed on the support plate (4), a working platform (6) is installed on the sliding lifting mechanism (5), and the sliding lifting mechanism (5) can lift heavy objects and translate the heavy objects; The base (2) is also equipped with a laser transmitter and a central processing unit. The laser transmitter is connected to a photoelectric detector. The photoelectric detector has an avalanche photodiode built in. The photoelectric detector is connected to a buzzer and is synchronized in real time through the central processing unit. An anti-collision belt is installed around the base (2). The anti-collision belt is connected to a pressure sensor. The pressure sensor realizes a real-time pressure feedback function. The central processing unit has a built-in linear regression fitting curve and an ant colony algorithm model. The ant colony algorithm model is written in Python language and is synchronized with a digital map. Laser positioning marks with high reflective reflective plates are installed on the walls or pillars along the running path of the material elevator. The laser transmitter emits a laser beam. The photoelectric detector receives the laser beam reflected back by the surrounding positioning marks. The on-board computer calculates the current position and direction of movement of the vehicle. The digital map is compared with the set digital map to correct the direction; the digital map is drawn by the topological map method, various special nodes in the working environment are marked on the electronic map, and the connection relationship between these nodes is represented by connecting lines between nodes, so as to establish an electronic map model composed of points and lines without obstacle features; the path planning of the automatic driving of the material elevator is realized by the ant colony algorithm, firstly, the starting point in the map is established, the pheromone concentration is initialized, and the initialized pheromone concentration is updated by iteration; m ants are placed at the starting point, and by searching the path in sequence, it is continuously determined whether it is the end point; after all the m ants reach the end point, the path length is compared and calculated to find the optimal solution; the optimal path is transmitted to the central processing unit, and the algorithm ends. The central processing unit realizes the automatic material transportation function of the material elevator according to the path found by the optimal solution in combination with the intelligent obstacle avoidance module; A hydraulic sensor is installed in the hydraulic cylinder circuit of the multi-stage telescopic cylinder. The hydraulic sensor measures the pressure P value in the hydraulic circuit of the material elevator. The measured pressure P value is transmitted to the central processing unit through the AD sampling method. The standard weight block is used to obtain the corresponding values ​​of the pressure value P and the weight M of the heavy object. The pressure P and the weight M are linearly fitted according to the linear regression algorithm in machine learning to obtain a pressure-weight curve, and the pressure-weight curve is stored in the central processing unit. The central processing unit calculates the specific value of the lifted material weight based on the actual hydraulic value P received using the above-mentioned fitted pressure-weight curve; the calculated material weight is transmitted to the display screen through the CAN bus, the display screen displays the material weight in real time, and realizes data summary statistics, thereby realizing intelligent weighing and data summary of the material by the material elevator.

2. The material elevator with intelligent weighing and automatic path finding functions according to claim 1, characterized in that: The lifting mechanism (3) comprises an outer sleeve oil cylinder arranged on the base (2) and a multi-section telescopic oil cylinder which is sleeved and arranged on the outer sleeve oil cylinder.

3. The material elevator with intelligent weighing and automatic path finding functions according to claim 1, characterized in that: The base (2) further comprises a support mechanism (8), the support mechanism (8) comprising a movable portion (81) fixedly connected to a side wall of the base (2) and a fixed portion (82) fixedly connected to the base, the movable portion (81) and the fixed portion (82) being rotatably connected via a thread (83); The movable part (81) and the fixed part (82) are provided with through holes (84) at corresponding positions on the two side surfaces, and the inner wall of the through hole (84) is provided with an internal thread. The bottom surface (85) of the movable part (81) is a horizontally arranged support surface for supporting the base (2), and the bottom surface (85) is provided with a pattern. The support mechanism also includes a fastening component, which includes a side plate and an external threaded member adapted to the internal thread of the through hole, and the side plate is provided with through holes respectively matched with the through holes (84) on the fixed part and the through holes (84) on the movable part.

4. The material elevator with intelligent weighing and automatic path finding functions according to claim 1, characterized in that: The sliding lifting mechanism (5) also includes a boss (510), a guide mechanism (52) is installed on the boss (510), baffles (511) are fixedly connected to both sides of the boss (510), the guide mechanism (52) is located between the baffles (511), the guide mechanism (52) includes a linear guide rail, a movable slider (55) and a ball screw pair, the linear guide rail includes a lower guide rail (512) and an upper guide rail (56), the lower guide rail (512) and the upper guide rail (56) are both slidably connected with the movable slider (55), the lower guide rail (512) is fixedly connected to the boss (510), and the upper guide rail (56) is fixedly connected to the top of the baffle (511); A lifting mechanism (59) is fixedly connected between the two movable slide blocks (55) via a fixing rod (54), and the lifting mechanism (59) is installed on a ball screw pair, and the ball screw pair drives the lifting mechanism (59) to move left and right, and the ball screw pair is driven by a motor; The lifting mechanism (59) includes a housing (58), a worm gear, a gear, a rack and a coupling. The worm gear, the gear, the rack and the coupling are mounted on the housing (58). The worm gear, the gear, the rack and the coupling are driven by a driving motor (57) to move the worm. The movement of the worm gear also causes the worm wheel to move. The worm wheel and two gears for transmitting torque are mounted on the same shaft. When the worm wheel rotates, the gear also rotates. The gear then drives the rack to rise. The end of the rack is fixedly connected to a loading work platform (6). The work platform (6) performs reciprocating linear motion under the guidance of the guide rail slider and the lifting mechanism (59), thereby achieving lifting and translation of heavy objects.

5. The material elevator with intelligent weighing and automatic path finding functions according to claim 4, characterized in that: The lifting mechanism (59) is installed on the ball screw pair through a guide sleeve (53).

6. The material elevator with intelligent weighing and automatic path finding functions according to claim 4, characterized in that: The driving mechanism (1) is an electric motor, and the base (2) has wheels.

7. The material elevator with intelligent weighing and automatic path finding functions according to claim 4, characterized in that: The support plate (4) is also equipped with a motor (51), and the motor (51) is used to drive the ball screw pair.

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