Portal crane with precise positioning function

Abstract

The invention discloses a precise positioning portal crane, and relates to the technical field of cranes. The precise positioning portal crane comprises a rack, a cross beam, a driving mechanism and a hoisting mechanism, the driving mechanism comprises a shell, a controller and a hydraulic cylinder, driving wheels are installed at the bottom of an inner cavity of the shell, the telescopic end of the hydraulic cylinder is fixedly connected with a Z-shaped plate, and a camera is fixedly installed in the middle of the surface of the Z-shaped plate; the lifting mechanism comprises a servo motor and a rotating roller, the servo motor is fixedly installed on the side of the surface of the shell, the rotating roller is rotatably installed in the middle of an inner cavity of the shell, a steel wire rope is wound around the middle of the outer circle face of the rotating roller, and the bottom end of the steel wire rope penetrates through the center of the bottom of the shell. The purpose of accurate positioning is achieved, clamping positioning can be carried out, deviation is not prone to occurring, batch hoisting is facilitated, and the overall hoisting efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and specifically to a gantry crane with precise positioning. Background Art

[0002] With the rapid production of large-sized materials, the handling of large-sized materials becomes particularly important, and cranes are required for the handling of large-sized materials. A crane refers to a multi-action hoisting machine that hangs heavy objects with a hook or other lifting devices and vertically lifts and horizontally transports heavy objects within a certain range. It is also called a hoist and belongs to the material handling machinery. A gantry crane is a hoisting device widely used in outdoor freight yards, material yards, ports and other places. Its metal structure is similar to a portal frame and can directly move on the ground track. The gantry crane has the characteristics of high site utilization rate, large operation range, wide adaptability, strong versatility, etc. When hoisting materials, there will be situations of batch hoisting. The hoisting positions and hoisting end positions of a large number of objects are fixed, and accurate positioning hoisting is required to improve the overall hoisting efficiency.

[0003] At present, when a crane is moving for material transfer, it is inconvenient to perform positioning and is prone to deviation. Especially for some materials with batch hoisting, it is not convenient to accurately position them to the specified position, which affects the overall use of the crane. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A gantry crane with precise positioning, comprising: A frame, and a cross beam fixedly installed on the top of the frame. A trapezoidal groove is opened at the side of the top of the cross beam; A driving mechanism, which is used to move the lifting appliance. The driving mechanism is installed in the middle of the top of the frame; Among them, the driving mechanism includes a housing, a controller and a hydraulic cylinder. A driving wheel is installed at the bottom of the inner cavity of the housing. The housing is installed on the top of the frame through the driving wheel. The controller is installed in the middle of the top of the housing. The hydraulic cylinder is installed at the side of the top of the housing. The telescopic end of the hydraulic cylinder extends into the interior of the housing. The telescopic end of the hydraulic cylinder is fixedly connected to a Z-shaped plate. A camera is fixedly installed in the middle of the surface of the Z-shaped plate. A trapezoidal positioning block is fixedly connected to the bottom of the Z-shaped plate. By the rolling of the driving wheel, the housing is driven to move, and the lifting sling can be driven to move linearly, so that the position of the lifting sling can be adjusted. And by evenly installing four driving wheels at the bottom of the inner cavity of the housing, the overall movement of the housing can be made stable and not prone to skewing, which is safe and reliable; A lifting mechanism, which is used to hoist and lift materials. The lifting mechanism is installed at the bottom of the housing; Among them, the lifting mechanism includes a servo motor and a rotating roller. The servo motor is fixedly installed on the side of the outer shell surface, and the rotating roller is rotatably installed in the middle of the inner cavity of the outer shell. The output end of the servo motor is fixedly connected to the rotating roller through a coupling. A steel wire rope is wound around the middle of the outer circumferential surface of the rotating roller. The bottom end of the steel wire rope passes through the center of the bottom of the outer shell, and a hook is installed at the bottom end of the steel wire rope. By rotating the output end of the servo motor forward, the rotating roller can be driven to rotate, so as to wind up the steel wire rope, making the hook move upward under the action of tension, and the material can be lifted and hoisted by the hook. By rotating the output end of the servo motor in reverse, the rotating roller can be driven to rotate in the reverse direction, and the steel wire rope wound on the surface of the rotating roller can be lowered, so as to lower and unload the heavy object.

[0005] Preferably, there are four hydraulic cylinders, and the four hydraulic cylinders are evenly installed on the side of the top of the outer shell. The hydraulic cylinders are electrically connected to the controller through solenoid valves, and the camera is electrically connected to the controller. As the driving wheels drive the whole outer shell to move, when the outer shell moves to a position, the camera takes pictures and collects information on the position of the trapezoidal groove under the trapezoidal positioning block, and transmits the information to the controller. The controller processes the collected information, and then can control the driving wheels through the controller. By rolling the driving wheels, the position of the outer shell is finely adjusted, so that the trapezoidal positioning block is directly above the trapezoidal groove, making the position of the outer shell more accurate.

[0006] By controlling the hydraulic cylinder through the controller and using the telescopic end of the hydraulic cylinder to extend, the Z-shaped plate can be pushed downward, and then the trapezoidal positioning block can be driven to move downward together. Considering that the trapezoidal positioning block is directly above the trapezoidal groove, the trapezoidal positioning block can be inserted into the trapezoidal groove, thus achieving precise positioning and not being prone to deviation.

[0007] Preferably, the trapezoidal positioning block is installed directly above the trapezoidal groove. There are four driving wheels, and the four driving wheels are evenly installed at the bottom of the inner cavity. The surface of the driving wheels is in contact with the top of the cross beam. As the Z-shaped plate is pushed downward by the telescopic end of the hydraulic cylinder, the arc-shaped concave surface at the top of the Z-shaped plate moves towards the outer circumferential surface of the driving wheels. When the arc-shaped concave surface at the top of the Z-shaped plate is stuck on the driving wheels, the driving wheels can be braked, making it difficult for the driving wheels to roll randomly, and the overall structure is more stable.

[0008] Preferably, the rotating roller is horizontally installed. By rotating the rotating roller, the steel wire rope is wound up and lowered. The servo motor and the rotating roller are installed at the same height.

[0009] Preferably, the lifting hook includes a metal hook. The top end of the metal hook is fixedly connected to the bottom end of a steel wire rope. A bent rod is hinged to the top of the surface of the metal hook. The middle line of the surface of the bent rod is fixedly connected with a crescent lock tooth. An elastic sheet is fixedly connected between the bottom of the crescent lock tooth and the surface of the metal hook. A C-shaped plate is fixedly connected to the surface of the metal hook and away from the crescent lock tooth. A U-shaped leg is slidably installed in the groove at the center of the C-shaped plate. As the steel wire rope is lowered, the whole lifting hook moves downward. The bottom end of the U-shaped leg contacts the top of the material to be lifted. Combining the action and reaction forces, the U-shaped leg receives an upward pushing force from the material. Under the guidance of the C-shaped plate, the U-shaped leg moves upward. By using the bottom of the metal hook to contact the top of the material, three-point support can be achieved, making the metal hook in a vertical state and not prone to tipping over.

[0010] As the U-shaped leg moves upward, the top of the U-shaped leg can apply an upward pushing force to the bottom end of the bent rod. The bent rod drives the crescent lock tooth to rotate clockwise to adjust the angle, and the elastic sheet is compressed. The bottom end of the crescent lock tooth is separated from the arc-shaped hook end of the metal hook, making the metal hook in an open state, facilitating the hooking of the rope of the material to be lifted.

[0011] Preferably, the elastic sheet is arc-shaped. The opening of the U-shaped leg faces downward, and the U-shaped leg is installed directly below the bottom end of the bent rod. As the steel wire rope is wound up, a pulling force is applied to the metal hook through the steel wire rope, driving the whole lifting hook to move upward. The bottom end of the U-shaped leg is separated from the top of the material, so that the upward pushing force of the U-shaped leg on the bottom end of the bent rod disappears. Under the elastic force of the elastic sheet, the bent rod drives the crescent lock tooth to rotate counterclockwise to reset, so that the bottom end of the crescent lock tooth fits with the arc-shaped hook end of the metal hook, achieving self-locking and preventing the rope of the material to be lifted from unhooking.

[0012] Preferably, an auxiliary mechanism is installed at the bottom of the housing. The auxiliary mechanism includes a sliding sleeve and a right-angle rod. The surface of the sliding sleeve is fixedly connected to the side of the housing surface. The surface of the right-angle rod is slidably installed at the center of the sliding sleeve. The bottom end of the right-angle rod is fixedly connected with a connecting block. A rectangular notch is opened at the bottom of the connecting block. One end of the connecting block away from the right-angle rod is fixedly connected with a cylinder. The steel wire rope passes through the center of the cylinder. A cleaning component is installed at the top of the cylinder. Using the support of the right-angle rod for the cylinder and combining the fact that the steel wire rope passes through the center of the cylinder, the steel wire rope can be limited. As the metal hook drives the C-shaped plate to move upward, the top of the C-shaped plate is embedded into the internal part of the rectangular notch. As the metal hook drives the C-shaped plate to continue moving upward, the connecting block receives an upward pushing force, causing the right-angle rod to slide upward. Using the support and guidance of the right-angle rod, the metal hook is lifted smoothly and not prone to shaking, reducing the influence of external wind.

[0013] Preferably, the top end of the right-angled rod passes through the center of the sliding sleeve, and the connecting block and the cylinder are installed directly below the outer shell.

[0014] Preferably, the cleaning component includes an arc-shaped support member. The bottom end of the arc-shaped support member is hinged to the middle of the surface of the cylinder. A roller is rotatably installed at the top end of the arc-shaped support member. An elastic brush is fixedly connected to the arc-shaped concave surface of the roller surface. One end of the elastic brush away from the roller fits against the surface of the steel wire rope. A ring-shaped tension spring is fixedly connected to the middle of the surface of the arc-shaped support member. Through the elastic pulling force of the ring-shaped tension spring, the arc-shaped support member is subjected to an elastic pulling force, which can promote the elastic brush to fit against the surface of the steel wire rope. By winding and lowering the steel wire rope, when the steel wire rope moves, the roller can be driven to roll, so that the elastic brush is always in a dynamic state. By using the elasticity of the elastic brush itself, when the elastic brush separates from the steel wire rope, the elastic brush automatically straightens, thereby cleaning the dust and impurities attached to the surface of the steel wire rope.

[0015] Preferably, there are two arc-shaped support members, and the two arc-shaped support members are symmetrically installed along the axis of the center of the cylinder. The elastic brushes are evenly distributed on the arc-shaped concave surface of the roller surface.

[0016] The present invention provides a gantry crane with precise positioning, having the following beneficial effects: First, for this gantry crane with precise positioning, when the staff starts the driving wheels to work, the rolling of the driving wheels drives the outer shell to move, and the lifting spreader can be driven to move linearly, so as to adjust the position of the lifting spreader. Moreover, since the four driving wheels are evenly installed at the bottom of the inner cavity of the outer shell, the overall movement of the outer shell is stable and not prone to skewing, which is safe and reliable.

[0017] Second, for this gantry crane with precise positioning, the camera captures and collects information on the position of the trapezoidal groove below the trapezoidal positioning block and transmits the information to the controller. The controller processes the collected information, and then can control the driving wheels through the controller. By rolling the driving wheels, the position of the outer shell is finely adjusted, so that the trapezoidal positioning block is directly above the trapezoidal groove, making the position of the outer shell more accurate.

[0018] Third, for this gantry crane with precise positioning, when the telescopic end of the hydraulic cylinder extends, the Z-shaped plate can be pushed downward, driving the trapezoidal positioning block to move downward together. Combined with the trapezoidal positioning block being directly above the trapezoidal groove, the trapezoidal positioning block can be inserted into the trapezoidal groove, thus achieving precise positioning and not being prone to deviation, which is convenient for batch hoisting.

[0019] IV. For this accurately positioned gantry crane, as the Z-shaped plate is pushed downward by the telescopic end of the hydraulic cylinder, the arc concave surface at the top of the Z-shaped plate moves towards the outer circular surface of the driving wheel. When the arc concave surface at the top of the Z-shaped plate is stuck on the driving wheel, the driving wheel can be braked, making it difficult for the driving wheel to roll randomly, and the overall structure is more stable.

[0020] V. For this accurately positioned gantry crane, by the forward rotation of the output end of the servo motor, the rotating roller can be driven to rotate, and then the steel wire rope can be wound up. As a result, the lifting hook is pulled upward by the tension, and the materials can be lifted and hoisted by the lifting hook. By the reverse rotation of the output end of the servo motor, the rotating roller can be driven to rotate in the reverse direction, and the steel wire rope wound on the surface of the rotating roller can be lowered, so that the heavy object can be unloaded.

[0021] VI. For this accurately positioned gantry crane, as the steel wire rope is lowered, the entire lifting hook moves downward. The bottom end of the U-shaped leg contacts the top of the material to be hoisted. Combining the action and reaction forces, the U-shaped leg receives an upward pushing force from the material. Under the guidance of the C-shaped plate, the U-shaped leg moves upward. And by the contact of the bottom of the metal hook with the top of the material, three-point support can be achieved, making the metal hook in a vertical state and not prone to tipping over.

[0022] VII. For this accurately positioned gantry crane, by applying an upward pushing force to the bottom end of the bent rod with the top of the U-shaped leg, the crescent lock tooth is driven by the bent rod to rotate clockwise to adjust the angle, and the elastic piece is compressed. The bottom end of the crescent lock tooth is separated from the arc hook-shaped end of the metal hook, making the metal hook in an open state, which is convenient for hooking the rope of the material to be hoisted.

[0023] VIII. For this accurately positioned gantry crane, when the bottom end of the U-shaped leg is separated from the top of the material, the upward pushing force of the U-shaped leg on the bottom end of the bent rod disappears. Under the elastic force of the elastic piece, the bent rod drives the crescent lock tooth to rotate counterclockwise to reset, so that the bottom end of the crescent lock tooth fits with the arc hook-shaped end of the metal hook, and self-locking can be achieved, preventing the rope of the material to be hoisted from unhooking.

[0024] IX. For this accurately positioned gantry crane, as the metal hook drives the C-shaped plate to move upward, the top of the C-shaped plate is embedded into the interior of the rectangular notch. And as the metal hook drives the C-shaped plate to continue moving upward, the connecting block receives an upward pushing force, causing the right-angle rod to slide upward. With the support and guidance of the right-angle rod, the metal hook is lifted smoothly and is not prone to shaking, reducing the influence of external wind.

[0025] X. In the gantry crane with precise positioning, due to the elastic pulling force of the annular tension spring, the arc-shaped support member is subjected to an elastic pulling force, which can promote the elastic brush to fit the surface of the steel wire rope. When the steel wire rope is wound and lowered, and the steel wire rope moves, it can drive the roller to roll, so that the elastic brush is always in a dynamic state. By using the elasticity of the elastic brush itself, when the elastic brush separates from the steel wire rope, the elastic brush automatically straightens, thereby cleaning the dust and impurities attached to the surface of the steel wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the whole gantry crane with precise positioning of the present invention; Figure 2 is a schematic structural diagram of the gantry crane with precise positioning of the present invention seen from below; Figure 3 is a schematic connection structure diagram between the driving mechanism and the cross beam of the present invention; Figure 4 is a schematic structural diagram of the whole driving mechanism of the present invention; Figure 5 is a schematic connection structure diagram between the lifting mechanism and the housing of the present invention; Figure 6 For the present invention Figure 5 partial enlarged view at A in; Figure 7 is a schematic connection structure diagram between the auxiliary mechanism and the housing of the present invention; Figure 8 is a schematic structural diagram of the whole cleaning component of the present invention.

[0027] In the figure: 1, frame; 2, cross beam; 3, trapezoidal groove; 4, driving mechanism; 5, lifting mechanism; 6, auxiliary mechanism; 41, housing; 42, controller; 43, hydraulic cylinder; 44, driving wheel; 45, Z-shaped plate; 46, camera; 47, trapezoidal positioning block; 51, servo motor; 52, rotating roller; 53, steel wire rope; 54, hook; 541, metal hook; 542, bent rod; 543, crescent lock tooth; 544, elastic sheet; 545, C-shaped plate; 546, U-shaped leg; 61, sliding sleeve; 62, right-angle rod; 63, connecting block; 64, rectangular notch; 65, cylinder; 66, cleaning component; 661, arc-shaped support member; 662, roller; 663, elastic brush; 664, annular tension spring. DETAILED DESCRIPTION OF THE INVENTION

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0029] The first embodiment is as Figures 1 to 4 shown. The present invention provides a technical solution: A gantry crane with precise positioning, comprising: A frame 1, and a cross beam 2 fixedly installed on the top of the frame 1. A trapezoidal groove 3 is provided at the side of the top of the cross beam 2; A driving mechanism 4, which is used to move the lifting appliance. The driving mechanism 4 is installed in the middle of the top of the frame 1; Among them, the driving mechanism 4 includes a housing 41, a controller 42 and a hydraulic cylinder 43. A driving wheel 44 is installed at the bottom of the inner cavity of the housing 41. The housing 41 is installed on the top of the frame 1 through the driving wheel 44. The controller 42 is installed in the middle of the top of the housing 41. The hydraulic cylinder 43 is installed at the side of the top of the housing 41. The telescopic end of the hydraulic cylinder 43 extends into the interior of the housing 41. The telescopic end of the hydraulic cylinder 43 is fixedly connected to a Z-shaped plate 45. A camera 46 is fixedly installed in the middle of the surface of the Z-shaped plate 45. The bottom of the Z-shaped plate 45 is fixedly connected to a trapezoidal positioning block 47. The staff starts the driving wheel 44 to work. By the rolling of the driving wheel 44, the housing 41 is driven to move, and the lifting sling can be driven to move linearly, so that the position of the lifting sling can be adjusted. And by evenly installing the four driving wheels 44 at the bottom of the inner cavity of the housing 41, the overall movement of the housing 41 can be made stable; There are four hydraulic cylinders 43, and the four hydraulic cylinders 43 are evenly installed at the side of the top of the housing 41. The hydraulic cylinder 43 is electrically connected to the controller 42 through an electromagnetic valve, and the camera 46 is electrically connected to the controller 42.

[0030] As the driving wheel 44 drives the housing 41 to move as a whole, when the housing 41 moves to a position, the camera 46 takes pictures and collects information on the position of the trapezoidal groove 3 below the trapezoidal positioning block 47, and transmits the information to the controller 42. The controller 42 processes the collected information, and then can control the driving wheel 44 through the controller 42. By the rolling of the driving wheel 44, the position of the housing 41 is finely adjusted, so that the trapezoidal positioning block 47 is directly above the trapezoidal groove 3, making the position of the housing 41 more accurate.

[0031] The hydraulic cylinder 43 is controlled by the controller 42 to start working. When the telescopic end of the hydraulic cylinder 43 extends, the Z-shaped plate 45 can be pushed downward, driving the trapezoidal positioning block 47 to move downward together. Considering that the trapezoidal positioning block 47 is located directly above the trapezoidal groove 3, the trapezoidal positioning block 47 can be inserted into the trapezoidal groove 3 for precise positioning.

[0032] The trapezoidal positioning block 47 is installed directly above the trapezoidal groove 3. There are four driving wheels 44, and the four driving wheels 44 are evenly installed at the bottom of the inner cavity. The surface of the driving wheels 44 is in contact with the top of the cross beam 2. As the Z-shaped plate 45 is pushed downward by the telescopic end of the hydraulic cylinder 43, the arc concave surface at the top of the Z-shaped plate 45 moves towards the outer circular surface of the driving wheels 44. When the arc concave surface at the top of the Z-shaped plate 45 catches on the driving wheels 44, the driving wheels 44 can be braked, preventing the driving wheels 44 from rolling randomly.

[0033] Second embodiment, based on the first embodiment, please refer to Figures 1 to 6 as shown: Lifting mechanism 5, which is used for lifting and hoisting materials. The lifting mechanism 5 is installed at the bottom of the housing 41; Among them, the lifting mechanism 5 includes a servo motor 51 and a rotating roller 52. The servo motor 51 is fixedly installed at the side of the surface of the housing 41, and the rotating roller 52 is rotatably installed in the middle of the inner cavity of the housing 41. The output end of the servo motor 51 is fixedly connected to the rotating roller 52 through a coupling. A steel wire rope 53 is wound around the middle of the outer circular surface of the rotating roller 52. The bottom end of the steel wire rope 53 passes through the center of the bottom of the housing 41, and a hook 54 is installed at the bottom end of the steel wire rope 53. When the staff starts the servo motor 51 to work and uses the forward rotation of the output end of the servo motor 51, the rotating roller 52 can be driven to rotate, winding up the steel wire rope 53, causing the hook 54 to move upward under tension, and the materials can be lifted and hoisted by the hook 54. By reversing the output end of the servo motor 51, the rotating roller 52 can be driven to rotate in the reverse direction to lower the steel wire rope 53 wound around the surface of the rotating roller 52.

[0034] The rotating roller 52 is installed horizontally. By rotating the rotating roller 52, the steel wire rope 53 is wound up and lowered. The servo motor 51 and the rotating roller 52 are installed at the same height.

[0035] The hook 54 includes a metal hook 541. The top end of the metal hook 541 is fixedly connected to the bottom end of the wire rope 53. A bent rod 542 is hinged at the top of the surface of the metal hook 541. A crescent lock tooth 543 is fixedly connected to the center line of the surface of the bent rod 542. An elastic piece 544 is fixedly connected between the bottom of the crescent lock tooth 543 and the surface of the metal hook 541. A C-shaped plate 545 is fixedly connected to the surface of the metal hook 541 and on the side far from the crescent lock tooth 543. A U-shaped leg 546 is slidably installed in the groove at the center of the C-shaped plate 545. As the wire rope 53 is lowered, the whole hook 54 moves downward. The bottom end of the U-shaped leg 546 contacts the top of the material to be lifted. Combining the action and reaction forces, the U-shaped leg 546 receives an upward pushing force from the material and, under the guidance of the C-shaped plate 545, the U-shaped leg 546 moves upward. And by using the bottom of the metal hook 541 to contact the top of the material, three-point support can be achieved to maintain balance.

[0036] As the U-shaped leg 546 moves upward, an upward pushing force can be applied to the bottom end of the bent rod 542 by the top of the U-shaped leg 546. The bent rod 542 drives the crescent lock tooth 543 to rotate clockwise to adjust the angle, and the elastic piece 544 is compressed. The bottom end of the crescent lock tooth 543 is separated from the arc-shaped hook end of the metal hook 541, making the metal hook 541 in an open state, facilitating the hanging of the rope of the material to be lifted.

[0037] The elastic piece 544 is arc-shaped. The opening of the U-shaped leg 546 faces downward, and the U-shaped leg 546 is installed directly below the bottom end of the bent rod 542. As the wire rope 53 is wound up, a pulling force is applied to the metal hook 541 through the wire rope 53, driving the whole hook 54 to move upward. The bottom end of the U-shaped leg 546 is separated from the top of the material, so that the pushing force of the U-shaped leg 546 on the bottom end of the bent rod 542 disappears. Under the elastic force of the elastic piece 544, the bent rod 542 drives the crescent lock tooth 543 to rotate counterclockwise to reset, so that the bottom end of the crescent lock tooth 543 fits with the arc-shaped hook end of the metal hook 541.

[0038] The third embodiment, based on the first and second embodiments, please refer to Figures 1 to 8 as shown: An auxiliary mechanism 6 is installed at the bottom of the outer shell 41. The auxiliary mechanism 6 includes a sliding sleeve 61 and a right-angle rod 62. The surface of the sliding sleeve 61 is fixedly connected to the side of the surface of the outer shell 41. The surface of the right-angle rod 62 is slidably installed at the center of the sliding sleeve 61. A connecting block 63 is fixedly connected to the bottom end of the right-angle rod 62. A rectangular notch 64 is formed at the bottom of the connecting block 63. One end of the connecting block 63 away from the right-angle rod 62 is fixedly connected to a cylinder 65. The steel wire rope 53 passes through the center of the cylinder 65. A cleaning assembly 66 is installed at the top of the cylinder 65. By using the support of the right-angle rod 62 for the cylinder 65 and combining with the steel wire rope 53 passing through the center of the cylinder 65, the steel wire rope 53 can be limited. And as the metal hook 541 drives the C-shaped plate 545 to move upward, the top of the C-shaped plate 545 is embedded into the interior of the rectangular notch 64. And as the metal hook 541 drives the C-shaped plate 545 to continue to move upward, the connecting block 63 receives an upward driving force, causing the right-angle rod 62 to slide upward. And by using the support and guidance of the right-angle rod 62, the metal hook 541 can be lifted smoothly.

[0039] The top end of the right-angle rod 62 passes through the center of the sliding sleeve 61. The connecting block 63 and the cylinder 65 are installed directly below the outer shell 41.

[0040] The cleaning assembly 66 includes an arc-shaped support 661. The bottom end of the arc-shaped support 661 is hinged to the middle of the surface of the cylinder 65. A roller 662 is rotatably installed at the top end of the arc-shaped support 661. An elastic brush 663 is fixedly connected to the arc-shaped concave surface of the surface of the roller 662. One end of the elastic brush 663 away from the roller 662 is attached to the surface of the steel wire rope 53. An annular tension spring 664 is fixedly connected to the middle of the surface of the arc-shaped support 661. Through the elastic pulling force of the annular tension spring 664, the arc-shaped support 661 receives an elastic pulling force, which can promote the elastic brush 663 to fit with the surface of the steel wire rope 53. And by winding and lowering the steel wire rope 53, when the steel wire rope 53 moves, the roller 662 can be driven to roll, so that the elastic brush 663 is always in a dynamic state. By using the elasticity of the elastic brush 663 itself, when the elastic brush 663 separates from the steel wire rope 53, the elastic brush 663 automatically straightens, thereby cleaning the dust and impurities attached to the surface of the steel wire rope 53.

[0041] There are two arc-shaped supports 661, and the two arc-shaped supports 661 are symmetrically installed along the axis of the center of the cylinder 65. The elastic brushes 663 are evenly distributed on the arc-shaped concave surface of the surface of the roller 662.

[0042] During use, first, the staff member starts the driving wheels 44 to work. By the rolling of the driving wheels 44, the outer shell 41 is driven to move, and the lifting sling can be driven to move linearly, so that the position of the lifting sling can be adjusted. Moreover, since the four driving wheels 44 are evenly installed at the bottom of the inner cavity of the outer shell 41, the overall movement of the outer shell 41 is stable. And as the driving wheels 44 drive the entire outer shell 41 to move, when the outer shell 41 reaches the position, the camera 46 takes pictures and collects information on the position of the trapezoidal groove 3 below the trapezoidal positioning block 47, and transmits the information to the controller 42. The controller 42 processes the collected information, and then can control the driving wheels 44 through the controller 42. By the rolling of the driving wheels 44, the position of the outer shell 41 is finely adjusted so that the trapezoidal positioning block 47 is directly above the trapezoidal groove 3. Then, the controller 42 controls the hydraulic cylinder 43 to start working. By the extension of the telescopic end of the hydraulic cylinder 43, the Z-shaped plate 45 can be pushed downward, which can drive the trapezoidal positioning block 47 to move downward together. And combined with the trapezoidal positioning block 47 being directly above the trapezoidal groove 3, the trapezoidal positioning block 47 can be inserted into the trapezoidal groove 3, thus achieving precise positioning. As the Z-shaped plate 45 is pushed downward by the telescopic end of the hydraulic cylinder 43, the arc-shaped concave surface at the top of the Z-shaped plate 45 moves toward the outer circumferential surface of the driving wheel 44. When the arc-shaped concave surface at the top of the Z-shaped plate 45 is stuck on the driving wheel 44, the driving wheel 44 can be braked, so that the driving wheel 44 is not likely to roll randomly. At this time, the staff member starts the servo motor 51 to work. By the forward rotation of the output end of the servo motor 51, the rotating roller 52 can be driven to rotate, and the steel wire rope 53 can be wound up, so that the hook 54 is pulled upward, and the material can be lifted and hoisted by the hook 54. By the reverse rotation of the output end of the servo motor 51, the rotating roller 52 can be driven to rotate in the reverse direction, and the steel wire rope 53 wound on the surface of the rotating roller 52 can be lowered. And as the steel wire rope 53 is lowered, the entire hook 54 moves downward. The bottom end of the U-shaped leg 546 contacts the top of the material to be hoisted. Combining with the action and reaction forces, the U-shaped leg 546 receives an upward pushing force from the material. Under the guidance of the C-shaped plate 545, the U-shaped leg 546 moves upward. And when the bottom of the metal hook 541 contacts the top of the material, three-point support can be achieved to maintain balance. As the U-shaped leg 546 moves upward, an upward pushing force can be applied to the bottom end of the bending rod 542 by the top of the U-shaped leg 546. The bending rod 542 drives the crescent lock tooth 543 to rotate clockwise to adjust the angle, and the elastic piece 544 is compressed. The bottom end of the crescent lock tooth 543 separates from the arc-shaped hook end of the metal hook 541, making the metal hook 541 in an open state, facilitating the hanging of the material rope to be lifted; Start the servo motor 51 to work again. Drive the rotating roller 52 to rotate by the output end of the servo motor 51, then the steel wire rope 53 can be wound, and the material can be lifted by the metal hook 541; At the same time, as the steel wire rope 53 is wound, a pulling force is applied to the metal hook 541 through the steel wire rope 53, driving the entire hook 54 to move upward. The bottom end of the U-shaped leg 546 separates from the top of the material, so that the upward pushing force of the U-shaped leg 546 on the bottom end of the bending rod 542 disappears. Under the elastic force of the elastic piece 544, the bending rod 542 drives the crescent lock tooth 543 to rotate counterclockwise to reset, so that the bottom end of the crescent lock tooth 543 fits with the arc-shaped hook end of the metal hook 541 for self-locking; With the support of the right-angled rod 62 for the cylinder 65, and combined with the steel wire rope 53 passing through the center of the cylinder 65, the steel wire rope 53 can be limited. As the metal hook 541 drives the C-shaped plate 545 to move upward, the top of the C-shaped plate 545 is embedded into the rectangular notch 64. As the metal hook 541 drives the C-shaped plate 545 to continue moving upward, the connecting block 63 receives an upward pushing force, causing the right-angled rod 62 to slide upward. With the support and guidance of the right-angled rod 62, the metal hook 541 is lifted smoothly; Due to the elastic pulling force of the annular tension spring 664, the arc-shaped support 661 is subjected to an elastic pulling force, promoting the elastic brush 663 to fit with the surface of the steel wire rope 53. When the steel wire rope 53 is wound and lowered, when the steel wire rope 53 moves, it drives the roller 662 to roll, keeping the elastic brush 663 in a dynamic state. Using the elasticity of the elastic brush 663 itself, when the elastic brush 663 separates from the steel wire rope 53, the elastic brush 663 automatically straightens to clean the dust and impurities attached to the surface of the steel wire rope 53; Moreover, by retracting the telescopic end of the hydraulic cylinder 43, the Z-shaped plate 45 is pulled upward, causing the trapezoidal positioning block 47 to move upward and move out of the trapezoidal groove 3. Then, by rolling the drive wheel 44 again, the housing 41 is driven to move, driving the entire lifting mechanism 5 to move, and the material can be lifted.

[0043] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0044] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precisely positioned gantry crane, characterized in that: include: A frame (1), and a crossbeam (2) fixedly mounted on the top of the frame (1), wherein a trapezoidal groove (3) is provided on the side of the top of the crossbeam (2); A driving mechanism (4), the driving mechanism (4) being used to move the lifting device, the driving mechanism (4) being installed in the middle of the top of the frame (1); The driving mechanism (4) comprises a housing (41), a controller (42) and a hydraulic cylinder (43); a driving wheel (44) is installed at the bottom of the inner cavity of the housing (41); the housing (41) is installed on the top of the frame (1) via the driving wheel (44); the controller (42) is installed in the middle of the top of the housing (41); the hydraulic cylinder (43) is installed on the side of the top of the housing (41); the telescopic end of the hydraulic cylinder (43) extends into the interior of the housing (41); the telescopic end of the hydraulic cylinder (43) is fixedly connected to a Z-shaped plate (45); a camera (46) is fixedly installed in the middle of the surface of the Z-shaped plate (45); and a trapezoidal positioning block (47) is fixedly connected to the bottom of the Z-shaped plate (45); The hydraulic cylinder (43) and the controller (42) are electrically connected via a solenoid valve, and the camera (46) and the controller (42) are electrically connected.

2. A precisely positioned gantry crane according to claim 1, characterized in that: There are four hydraulic cylinders (43), and the four hydraulic cylinders (43) are evenly installed on the sides of the top of the housing (41).

3. A precisely positioned gantry crane according to claim 1, characterized in that: The trapezoidal positioning block (47) is installed directly above the trapezoidal groove (3). There are four driving wheels (44), and the four driving wheels (44) are evenly installed at the bottom of the inner cavity. The surface of the driving wheel (44) is in contact with the top of the crossbeam (2).

4. The precise positioning gantry crane according to claim 1, characterized in that: A lifting mechanism (5) is installed at the bottom of the shell (41), and the lifting mechanism (5) includes a servo motor (51) and a rotating roller (52). The servo motor (51) is fixedly installed on the side of the surface of the shell (41), and the rotating roller (52) is rotatably installed in the middle of the inner cavity of the shell (41). The output end of the servo motor (51) is fixedly connected to the rotating roller (52) through a coupling. A steel wire rope (53) is wound around the middle of the outer cylindrical surface of the rotating roller (52). The bottom end of the steel wire rope (53) passes through the center of the bottom of the shell (41). A hook (54) is installed at the bottom end of the steel wire rope (53). The rotating roller (52) is installed horizontally, and the steel wire rope (53) is wound and lowered by rotating the rotating roller (52). The servo motor (51) and the rotating roller (52) are installed at the same height.

5. A precisely positioned gantry crane according to claim 4, characterized in that: The hook (54) comprises a metal hook (541), the top end of the metal hook (541) is fixedly connected to the bottom end of the steel wire rope (53), a bending rod (542) is hinged on the top of the surface of the metal hook (541), a crescent lock tooth (543) is fixedly connected to the middle line of the surface of the bending rod (542), an elastic sheet (544) is fixedly connected between the bottom of the crescent lock tooth (543) and the surface of the metal hook (541), a C-shaped plate (545) is fixedly connected to the surface of the metal hook (541) and the side away from the crescent lock tooth (543), and a U-shaped leg (546) is slidably installed at the groove in the center of the C-shaped plate (545).

6. A precisely positioned gantry crane according to claim 5, characterized in that: The elastic sheet (544) is arc-shaped, the opening of the U-shaped leg (546) is downward, and the U-shaped leg (546) is installed directly below the bottom end of the bending rod (542).

7. The precise positioning gantry crane according to claim 1, characterized in that: An auxiliary mechanism (6) is installed at the bottom of the housing (41), and the auxiliary mechanism (6) comprises a sliding sleeve (61) and a right-angle rod (62). The surface of the sliding sleeve (61) is fixedly connected to the side of the surface of the housing (41), and the surface of the right-angle rod (62) is slidably installed at the center of the sliding sleeve (61). The bottom end of the right-angle rod (62) is fixedly connected to a connecting block (63), and a rectangular notch (64) is provided at the bottom of the connecting block (63). One end of the connecting block (63) away from the right-angle rod (62) is fixedly connected to a cylinder (65), and the steel wire rope (53) passes through the center of the cylinder (65). A cleaning assembly (66) is installed on the top of the cylinder (65).

8. The precise positioning gantry crane according to claim 7, characterized in that: The top end of the right-angle rod (62) passes through the center of the sliding sleeve (61), and the connecting block (63) and the cylinder (65) are installed directly below the housing (41).

9. The precise positioning gantry crane according to claim 7, characterized in that: The cleaning assembly (66) comprises an arc-shaped support member (661), the bottom end of the arc-shaped support member (661) is hinged to the middle of the surface of the cylinder (65), a roller (662) is rotatably mounted on the top of the arc-shaped support member (661), an elastic brush (663) is fixedly connected to the arc-shaped concave surface of the roller (662), one end of the elastic brush (663) away from the roller (662) is in contact with the surface of the steel wire rope (53), and an annular tension spring (664) is fixedly connected to the middle of the surface of the arc-shaped support member (661).

10. The precise positioning gantry crane according to claim 9, characterized in that: There are two arc-shaped support members (661), and the two arc-shaped support members (661) are symmetrically installed along the axis at the center of the cylinder (65), and the elastic brushes (663) are evenly distributed on the arc-shaped concave surface of the roller (662).

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