High-efficiency loading and unloading logistics gantry crane
By using a servo motor-driven chain and sprocket system and a bidirectional threaded rod clamping plate structure, the gantry crane can simultaneously lift and stably clamp multiple loads, solving the problems of low efficiency and unstable clamping of traditional gantry cranes, and improving lifting efficiency and practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN SHENGRUI CONSTR MASCH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-19
Smart Images

Figure CN224377560U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of gantry cranes, and in particular to a high-efficiency loading and unloading logistics gantry crane. Background Technology
[0002] A gantry crane is a common type of lifting machinery, typically used for material handling operations in large outdoor areas. It is characterized by having two supporting arms and a portal-shaped structure, hence the name "gantry crane". The main components of a gantry crane include a lifting trolley, main beam, supporting arms, guide rails, etc. Its working principle is to drive the trolley to move laterally on the main beam through an electric or hydraulic system, and to lift and transport materials through hooks or other gripping devices.
[0003] A search revealed Chinese Patent Publication No. CN219950273U, which discloses a railway tire-mounted container gantry crane. The crane includes a crane body with a trolley frame mounted on it. A spreader for lifting containers is connected to the bottom of the trolley frame. This crane uses six laser sensors to accurately measure the flatbed train or open containers, assisting the driver in safely and efficiently placing containers into the designated center position of the carriage. It can also detect the status of the train pallet or container under the spreader. A display device in the driver's cab guides the driver in placing and lifting containers. A video monitoring system monitors important locations such as the tire-mounted crane's operating area and the truck lane area. During tire-mounted crane operations, real-time image transmission monitors the equipment's operation and the safety of the surrounding lanes as the trolley moves, providing an efficient, safe, and reliable operating area.
[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: 1. Traditional gantry cranes can only lift and lower goods individually, and cannot lift goods simultaneously. The efficiency of lifting and lowering goods individually is extremely slow. For some large-volume ports, using a single lifting method greatly delays lifting efficiency. 2. It is impossible to clamp and handle small cargo containers. Using a hook method makes the cargo containers prone to swaying, reducing the practicality of the gantry crane. Utility Model Content
[0005] To address the problems mentioned in the background section, this application provides a high-efficiency loading and unloading gantry crane.
[0006] This application provides a high-efficiency loading and unloading gantry crane for logistics, which adopts the following technical solution:
[0007] Optionally, the crane includes: a main body plate;
[0008] Two support frames are fixedly connected to the bottom sides of the main body plate, and each support frame has a sliding groove inside;
[0009] Both sliding plates are slidably connected inside the groove, and both sliding plates have two telescopic columns fixedly connected to their bottoms;
[0010] One swing rod is movably connected to one side of the outer surface of the sliding plate, and another swing rod is movably connected to one side of the outer surface of the first swing rod;
[0011] The outer casing is fixedly installed on the top of the main body plate, and a rotating shaft is movably embedded inside the outer casing.
[0012] Optionally, the bottom ends of the two telescopic columns are fixedly connected to the inner wall of the chute, and the two ends of the rotating shaft are respectively fixedly connected to the outer surfaces of the two swing rods.
[0013] Optionally, a servo motor is fixedly installed at the top center of the main body plate, and a sprocket is fixedly connected to the output end of the servo motor.
[0014] Optionally, a chain is movably connected to the outer surface of the second sprocket.
[0015] Optionally, a sprocket is fixedly sleeved on the outer surface of the rotating shaft, and the outer surface of the sprocket is movably connected to the inner wall of the chain.
[0016] Optionally, multiple support plates are fixedly connected to one side of the outer surface of the two sliding plates, and two hollow plates are fixedly connected to the top of the multiple support plates.
[0017] Optionally, one of the hollow plates has a bidirectional threaded rod movably connected to both sides of its inner wall, and a rotating motor is fixedly installed on one side of the outer surface of the hollow plate. The output end of the rotating motor is fixedly connected to one end of the bidirectional threaded rod. The other hollow plate has a limit post fixedly connected to both sides of its inner wall, and two clamping plates are threadedly connected to the outer surface of the bidirectional threaded rod. The interior of the two clamping plates is movably sleeved on the outer surface of the limit post.
[0018] In summary, this application includes the following beneficial technical effects:
[0019] 1. This utility model securely places all the goods to be lifted on top of the pallet, then turns on the external power supply of the servo motor, starts the servo motor using the controller, and the servo motor then drives the second sprocket to rotate. The second sprocket drives the chain to rotate, and the chain drives the first sprocket to rotate. Through the continuous rotation of the first sprocket, the rotating shaft located inside the first sprocket also gradually begins to rotate. The force generated by the rotation of the rotating shaft drives the two swing rods at its two ends to make circular motion. The second swing rod then pulls the first swing rod to swing. Subsequently, the sliding plate and the pallet slide in the slide groove as a whole, thereby achieving the simultaneous lifting of goods and greatly improving lifting efficiency.
[0020] 2. This utility model allows the operator to place the cargo box on top of the pallet, turn on the external power supply of the rotating motor, and start the rotating motor using the controller. The rotating motor drives the bidirectional threaded rod to rotate forward. When the bidirectional threaded rod rotates forward, it drives the two clamping plates to move gradually to both sides of the cargo box and gradually clamp the cargo box firmly. This allows for clamping of small cargo boxes, preventing the cargo boxes from shaking and improving the practicality of the gantry crane. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0022] Figure 2 This is a side view of the structure in an embodiment of this application;
[0023] Figure 3 This is a schematic diagram of the structure viewed from below in an embodiment of this application;
[0024] Figure 4 This is an embodiment of the present application. Figure 2 A magnified structural diagram of point A in the middle.
[0025] Reference numerals in the attached drawings: 1. Main body plate; 101. Outer shell; 102. Support frame; 103. Slide groove; 104. Telescopic column; 105. Sliding plate; 106. Swing rod one; 107. Swing rod two; 108. Rotating shaft; 109. Support plate; 110. Sprocket one; 111. Chain; 112. Sprocket two; 114. Servo motor; 2. Hollow plate; 201. Limiting column; 202. Bidirectional threaded rod; 203. Clamping plate; 204. Rotating motor. Detailed Implementation
[0026] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0027] This application discloses a high-efficiency loading and unloading gantry crane for logistics. For example... Figures 1-4As shown, the crane includes: a main body plate 1; the main body plate 1 is a rectangular plate, with two support frames 102 distributed below the main body plate 1 to effectively distribute the weight and provide better support for the crane, fixedly connected to the bottom sides of the main body plate 1, and each support frame 102 has a sliding groove 103 inside; the sliding groove 103 facilitates the up and down movement of the sliding plate 105 and prevents it from getting stuck, the two sliding plates 105 facilitate the lifting of goods, both are slidably connected inside the sliding groove 103, and two telescopic columns 104 are fixedly connected to the bottom of each of the two sliding plates 105; multiple telescopic columns 1 04 provides stable support for the sliding plate 105 to prevent it from tilting. The first swing rod 106 and the second swing rod 107 then pull the first swing rod 106 to swing. The first swing rod 106 is movably connected to one side of the outer surface of the sliding plate 105, and the second swing rod 107 is movably connected to one side of the outer surface of the first swing rod 106. The outer shell 101 prevents dust from accumulating in the internal components. It is fixedly installed on the top of the main body plate 1, and the rotating shaft 108 is movably embedded inside the outer shell 101. The rotating shaft 108 can drive the two second swing rods 107 to rotate at the same time, which facilitates lifting the cargo box.
[0028] Please see Figure 2 A servo motor 114 is fixedly installed at the top center of the main body plate 1. The servo motor 114 is mechanically connected to the sprocket 112 through the output shaft, and the output end and the sprocket 112 are connected in a high-precision manner to ensure the stability and accuracy of power transmission. When the controller sends a start signal, the servo motor 114 starts to run and drives the sprocket 112 to rotate efficiently through its drive system, thereby realizing the required motion or transmission function.
[0029] Please see Figures 3-4 The bottom ends of the two telescopic columns 104 are fixedly connected to the inner wall of the slide groove 103. The multiple telescopic columns 104 provide stable support for the sliding plate 105 to prevent the sliding plate 105 from tilting. The two ends of the rotating shaft 108 are respectively fixedly connected to the outer surfaces of the two swing rods 107. The rotating shaft 108 can drive the two swing rods 107 at the same time.
[0030] Please see Figure 4A sprocket 110 is precisely fixedly fitted onto the outer surface of the rotating shaft 108. This sprocket 110 forms a tight transmission relationship with the chain 111. Through its interaction with the chain 111, the sprocket 110 effectively drives the chain 111 to rotate. When the sprocket 112 begins to drive the chain 111 to rotate, the chain 111 moves smoothly along a predetermined track, thereby driving the sprocket 110 to rotate. As the sprocket 110 continues to rotate, it gradually drives the internal rotating shaft 108 to rotate, generating continuous power output. In this process, the chain 111, as the power transmission medium connecting the sprocket 110 and the sprocket 112, plays a crucial transmission role, ensuring that power is effectively transmitted from the sprocket 112 to the sprocket 110 and the rotating shaft 108 via the chain 111.
[0031] Please see Figure 4 A chain 111 is precisely connected to the outer surface of sprocket 2 112. When sprocket 2 112 starts to rotate, the chain 111 moves along with it, thereby driving sprocket 1 110 to rotate synchronously. The rotating shaft 108 located inside sprocket 1 110 also gradually begins to rotate during the rotation of sprocket 1 110. As the rotating shaft 108 continues to rotate, the generated power is transmitted to the swing rods 2 107 at both ends through a precise transmission mechanism. The torque generated by the rotation of the rotating shaft 108 causes the swing rods 2 107 to perform regular circular motion, thereby realizing the pushing and adjustment of other mechanical parts or carriers.
[0032] Please see Figure 4 One of the hollow plates 2 has a bidirectional threaded rod 202 movably connected to both sides of its inner wall. The controller starts the rotating motor 204, which drives the bidirectional threaded rod 202 to rotate forward. The rotating motor 204 is fixedly installed on one side of the outer surface of the hollow plate 2. The output end of the rotating motor 204 is fixedly connected to one end of the bidirectional threaded rod 202. The rotating motor 204 drives the bidirectional threaded rod 202 to rotate forward. When the bidirectional threaded rod 202 rotates forward, it drives the two clamping plates 203 to move gradually towards both sides of the cargo box. The other hollow plate 2 has a limit post 201 fixedly connected to both sides of its inner wall. The outer surface of the bidirectional threaded rod 202 is threaded with two clamping plates 203. The inside of the two clamping plates 203 is movably sleeved on the outer surface of the limit post 201. As the bidirectional threaded rod 202 continues to rotate forward, the clamping plates 203 gradually move towards both sides of the cargo box, firmly clamping both ends of the cargo box. At this time, the clamping plate 203, through its close cooperation with the limiting post 201, effectively prevents the clamping plate 203 from shifting during the clamping process, ensuring that the cargo box remains in a safe and stable position throughout the entire operation.
[0033] Please see Figure 4Multiple pallets 109 are fixedly connected to one side of the outer surface of the two sliding plates 105. Cargo boxes are placed on top of the pallets 109. Two hollow plates 2 are fixedly connected to the top of the multiple pallets 109. The multiple pallets 109 can effectively support and lift a large number of cargo boxes. Through this structural design, the multiple pallets 109 can effectively distribute the load, avoiding deformation or damage to any single component due to overload. The precise spacing between each pallet 109 and its cooperation with the hollow plates 2 form a stable and efficient cargo-carrying platform, enabling the entire system to efficiently lift a large number of cargo boxes.
[0034] The implementation principle of a high-efficiency loading and unloading logistics gantry crane according to this application embodiment is as follows: In use, firstly, all the goods to be hoisted are securely placed on top of the pallet 109. Then, the external power supply of the servo motor 114 is turned on, and the servo motor 114 is started using the controller. The servo motor 114 then drives the second sprocket 112 to rotate. The second sprocket 112 drives the chain 111 to rotate, and the chain 111 drives the first sprocket 110 to rotate. Through the continuous rotation of the first sprocket 110, the rotating shaft 108 located inside the first sprocket 110 also gradually begins to rotate. The force generated by the rotation of the rotating shaft 108 drives the two swing rods 107 at both ends to perform circular motion. The second swing rod 107 then pulls the first swing rod 106 to swing. Subsequently, the sliding plate 105 and the pallet 109 move together in the sliding groove. The sliding plate 105 slides in 103 and is lifted to the desired position by the pulling force of the swing rod 107. At the same time, multiple telescopic columns 104 provide stable support for the sliding plate 105 to prevent it from tilting, thus enabling the simultaneous lifting of goods and greatly improving lifting efficiency. During lifting, after the operator places the cargo box on top of the pallet 109, the operator turns on the external power supply of the rotating motor 204 and starts the rotating motor 204 using the controller. The rotating motor 204 drives the bidirectional threaded rod 202 to rotate forward. When the bidirectional threaded rod 202 rotates forward, it drives the two clamping plates 203 to move gradually to both sides of the cargo box and gradually clamp the cargo box firmly. This allows for clamping of small cargo boxes, preventing them from shaking and improving the practicality of the gantry crane.
[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high-efficiency loading and unloading gantry crane, characterized in that, The crane includes: Main body panel (1); Two support frames (102) are fixedly connected to the bottom sides of the main body plate (1), and each support frame (102) has a sliding groove (103) inside. Two sliding plates (105) are slidably connected inside the groove (103), and two telescopic columns (104) are fixedly connected to the bottom of each sliding plate (105). A swing rod one (106) is movably connected to one side of the outer surface of the sliding plate (105), and a swing rod two (107) is movably connected to one side of the outer surface of the swing rod one (106). The outer shell (101) is fixedly installed on the top of the main body plate (1), and a rotating shaft (108) is movably embedded inside the outer shell (101).
2. The high-efficiency loading and unloading gantry crane according to claim 1, characterized in that: The bottom ends of the two telescopic columns (104) are fixedly connected to the inner wall of the slide groove (103), and the two ends of the rotating shaft (108) are fixedly connected to the outer surfaces of the two swing rods (107).
3. The high-efficiency loading and unloading gantry crane according to claim 1, characterized in that: A servo motor (114) is fixedly installed at the top center of the main body plate (1), and a sprocket (112) is fixedly connected to the output end of the servo motor (114).
4. The high-efficiency loading and unloading gantry crane according to claim 3, characterized in that: The outer surface of the second sprocket (112) is movably connected to a chain (111).
5. The high-efficiency loading and unloading gantry crane according to claim 1, characterized in that: The outer surface of the rotating shaft (108) is fixedly fitted with a sprocket (110), and the outer surface of the sprocket (110) is movably connected to the inner wall of the chain (111).
6. The high-efficiency loading and unloading gantry crane according to claim 1, characterized in that: Multiple support plates (109) are fixedly connected to one side of the outer surface of the two sliding plates (105), and two hollow plates (2) are fixedly connected to the top of the multiple support plates (109).
7. A high-efficiency loading and unloading gantry crane according to claim 6, characterized in that: One of the hollow plates (2) has a bidirectional threaded rod (202) movably connected to both sides of its inner wall. A rotating motor (204) is fixedly installed on one side of the outer surface of the hollow plate (2). The output end of the rotating motor (204) is fixedly connected to one end of the bidirectional threaded rod (202). The other hollow plate (2) has a limit post (201) fixedly connected to both sides of its inner wall. Two clamping plates (203) are threadedly connected to the outer surface of the bidirectional threaded rod (202). The interior of the two clamping plates (203) is movably sleeved on the outer surface of the limit post (201).