A crane spreader used in ports

Abstract

A crane spreader used in a port belongs to the technical field of crane spreaders and includes a connecting frame II fixedly mounted on a frame mechanism, a positioning clamping rod placed in the middle of the connecting frame II, an insert connecting the connecting frame II and the positioning clamping rod, a positioning slide rod I slidably mounted in a slide groove provided at the lower end of the positioning clamping rod, a slide rod II slidably mounted in a slide groove provided at the lower end of the positioning slide rod I, a transverse positioning roller rotatably mounted in a groove provided under the slide rod II and connected to a motor, and a wire wheel connected to the motor and wound around a steel wire rope connected to the positioning slide rod I; the vertical positioning roller II rotates to vertically move the device relative to a container for vertical alignment, and cooperates with the positioning slide rod II to vertically align the device with the container; the positioning clamping rod is flipped and tilted to laterally align the container with the device, thereby automatically aligning the device with the container, facilitating the subsequent process of the device clamping the container.

Description

Technical Field

[0001] The present invention relates to the technical field of crane spreaders, and in particular to a crane spreader used in ports. Background Art

[0002] With the acceleration of global economic integration, international trade is experiencing explosive growth. As the core mode of transport carrying over 90% of global cross-border freight, the maritime shipping industry is experiencing unprecedented development opportunities. Amidst the continued rise in container throughput, port operational efficiency has become a key bottleneck restricting the smooth flow of the logistics supply chain. As the core hub connecting shipping and land transport, container terminals handle an average daily throughput of tens of thousands of standard containers (TEUs). Lifting operations, a crucial component of this process, have a direct impact on the overall port's operational efficiency, driven by their automation and intelligent capabilities.

[0003] In the current container handling system, crane spreaders, as key equipment that directly affects the container, still rely heavily on manual intervention for their operation. Traditional spreader systems require operators to visually determine the position of the container's lock holes and manually adjust the spreader's torsion angle and telescopic distance. This semi-automated operation mode presents three core pain points: First, the average manual alignment process is time-consuming, which can easily cause berth congestion during periods of concentrated berthing of large container ships; second, operators must maintain high levels of concentration for extended periods, and visual errors can lead to high alignment deviation rates during operations in inclement weather or at night; third, manual intervention presents significant safety risks. This traditional operation mode is in stark contrast to the demands of smart port development. Summary of the Invention

[0004] In view of the above problems, the present invention provides a crane spreader for use in ports to solve the problem that existing spreaders cannot be automatically aligned.

[0005] The technical solution used in the present invention is: a crane spreader used in a port, comprising a frame mechanism, a connecting mechanism, a fixed clamping mechanism, a vertical positioning mechanism, and a horizontal positioning mechanism; the horizontal positioning mechanism comprises a connecting frame II fixedly mounted on the frame mechanism, a positioning clamping rod placed in the middle of the connecting frame II, a plug connecting the connecting frame II and the positioning clamping rod, a positioning slide rod I slidably mounted in a slide groove provided at the lower end of the positioning clamping rod, a slide rod II slidably mounted in a slide groove provided at the lower end of the positioning slide rod I, a horizontal positioning roller rotatably mounted in a groove provided under the slide rod II and connected to a motor, and a wire wheel connected to the motor and wound around a steel wire rope connected to the positioning slide rod I;

[0006] The vertical positioning mechanism includes a hydraulic cylinder Ⅰ which contacts the end of the hydraulic rod with the positioning clamping rod (side contact, a turning frame Ⅰ which is rotatably mounted on the shaft provided on both sides of the lower end of the positioning slide rod Ⅰ, a vertical positioning roller Ⅰ which is rotatably mounted in a groove provided on the lower end surface of the turning frame Ⅰ, a coil spring which connects the turning frame Ⅰ and the positioning slide rod Ⅰ and drives the turning frame Ⅰ to turn, a turning frame Ⅱ which is rotatably mounted in a groove provided on the side of the positioning clamping rod, a vertical positioning roller Ⅱ which is rotatably mounted in a groove provided on the lower end surface of the turning frame Ⅱ, a rotating cylinder which is fixedly mounted on the shaft connecting the turning frame Ⅱ and the positioning clamping rod, a limiting clamp which is fixedly mounted in the fixed clamping mechanism, and a positioning slide rod Ⅱ which is slidably mounted with the limiting clamp.

[0007] Preferably, the connecting mechanism includes a rotating shaft with handles on both end faces, cams fixedly mounted on both ends of the rotating shaft, a slide rod I in contact with the outer wall of the cam, a block fixedly mounted on the other end of the slide rod I, and a connecting slide shaft with a slot on the outer wall for engaging the block.

[0008] Preferably, the fixed clamping mechanism includes a clamping plate frame with connecting sliding shafts fixedly installed on both sides, a clamping plate rotatably installed with the shaft and the clamping plate frame, a push rod rotatably installed with the upper end of the clamping plate through a rotating connecting block, and a hydraulic cylinder II that pushes the two push rods to move in opposite directions.

[0009] Preferably, the frame mechanism includes a lower frame rotatably mounted with a rotating shaft, four corner blocks fixedly mounted at the four corners of the lower frame, an upper frame arranged above the lower frame, a transverse steel frame fixedly mounted at the upper end of the upper frame, a plurality of hydraulic fixing frames fixedly mounted on the transverse steel frame, and a plurality of connecting frames I fixedly mounted on the lower frame and the upper frame.

[0010] Preferably, steel wire ropes are installed on the connecting frame I, and the ends of the steel wire ropes are connected together and connected to the crane.

[0011] Preferably, there are two fixed clamping mechanisms arranged in a mirror-symmetrical manner and respectively installed on both sides of the frame mechanism.

[0012] Preferably, there are multiple connecting mechanisms, which connect the two fixing mechanisms to the frame mechanism to facilitate the fixing mechanisms to clamp the container.

[0013] Preferably, the insert connects the positioning clamp rod to the connecting frame II. After removing the insert, the positioning clamp rod can be separated from the connecting frame II, and the positioning slide rod II can be taken out from the limiting clamp. At this time, vertical positioning mechanisms and horizontal positioning mechanisms of different quantities and positions are installed on the frame device and the fixing device according to needs to adapt to different situations.

[0014] Beneficial effects of the present invention:

[0015] 1. The vertical positioning roller II rotates to move the device vertically relative to the container, thereby vertically aligning the device with the container. It cooperates with the positioning slide bar II to vertically align the device with the container. After the positioning clamping rod is flipped and tilted, the container and the device are horizontally aligned through the inclined surface of the positioning clamping rod. This can automatically align the device with the container without manual alignment, facilitating the subsequent process of the device clamping the container.

[0016] 2. The horizontal positioning rollers rotate and cooperate with the four slide bars II to align the two containers horizontally; the vertical positioning rollers I rotate to move the two containers vertically until they are aligned vertically. This allows the containers to be aligned and stacked during transportation without manual container alignment.

[0017] 3. Connect the positioning clamp rod to the connecting frame II through the insert. After removing the insert, the positioning clamp rod and the connecting frame II can be separated, and the positioning slide bar II can be taken out of the limiting clamp. At this time, different numbers and positions of vertical positioning mechanisms and horizontal positioning mechanisms can be installed on the frame device and the fixing device according to needs to suit different situations.

[0018] 4. The fixed clamping mechanism is connected to the frame mechanism through a connecting mechanism, so that when the fixed clamping mechanism fails, the fixed clamping mechanism can be quickly replaced without replacing the entire spreader, saving time. A single spreader is equipped with multiple fixed clamping mechanisms, avoiding the problem of having to replace the entire spreader after a fixed clamping mechanism fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first angle.

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention from a second angle.

[0021] Figure 3 It is a structural diagram of the framework mechanism part of the present invention.

[0022] Figure 4 It is a structural schematic diagram of another part of the frame mechanism of the present invention.

[0023] Figure 5 It is a structural schematic diagram of the vertical positioning mechanism part and the horizontal positioning mechanism part of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the wire wheel, positioning slide rod I and turning frame I of the present invention.

[0025] Figure 7It is a structural schematic diagram of the vertical positioning roller I, slide bar II and nearby parts of the present invention.

[0026] Figure 8 It is a structural schematic diagram of the slide bar II and the transverse positioning roller of the present invention.

[0027] Figure 9 It is a structural schematic diagram of the positioning slide bar I and the coil spring of the present invention.

[0028] Figure 10 It is a structural schematic diagram of the vertical positioning mechanism part of the present invention.

[0029] Figure 11 It is a structural schematic diagram of the connecting mechanism of the present invention.

[0030] Figure 12 It is a structural schematic diagram of the connecting mechanism and the fixing clamping mechanism of the present invention.

[0031] Figure 13 It is a schematic diagram of the internal structure of the fixed clamping mechanism of the present invention.

[0032] Figure 14 It is a structural schematic diagram of the fixed clamping mechanism, the limiting clamp and the positioning slide bar II of the present invention.

[0033] Figure numbers: 1. Lower frame; 2. Connecting frame I; 3. Corner block; 4. Rotating shaft; 5. Cam; 6. Slide rod I; 7. Clamping block; 8. Upper frame; 9. Horizontal steel frame; 10. Hydraulic fixing frame; 11. Hydraulic cylinder I; 12. Connecting frame II; 13. Insert; 14. Positioning clamp rod; 15. Wire wheel; 16. Positioning slide rod I; 17. Turning frame I; 18. Vertical positioning roller I; 19. Slide rod II; 20. Horizontal positioning roller; 21. Coil spring; 22. Turning frame II; 23. Vertical positioning roller II; 24. Rotating cylinder; 25. Clamp frame; 26. Connecting slide shaft; 27. Limit clamp; 28. Clamp; 29. ​​Push rod; 30. Hydraulic cylinder II; 31. Positioning slide rod II. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be further described in detail below through examples and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] In the description of the present invention, it should be noted that the terms "upper," "lower," "front," "rear," "left," and "right" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed during use. These terms are intended to simplify the description of the present invention and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, for ease of description, spatially relative terms, such as "below," "below," "below," "above," and the like, may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the drawings. Spatially relative terms are intended to encompass different orientations of the device during use or operation other than the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly. It should be noted that, in this document, certain connection methods, such as "fixed connection" and "fixed installation," include, but are not limited to, the fixing of two components by methods such as welding, screw-nut fixing, gluing, riveting, and interference fit. For those skilled in the art, the specific meanings of the above terms in this application can be understood based on specific circumstances.

[0036] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0037] Implementation example Figures 1-14 As shown, a crane spreader used in a port includes a frame mechanism, a connecting mechanism, a fixing and clamping mechanism, a vertical positioning mechanism, and a horizontal positioning mechanism.

[0038] Implementation example Figure 3 、 Figure 4As shown, the frame mechanism includes: a lower frame 1, a connecting frame I2, a corner block 3, an upper frame 8, a transverse steel frame 9, and a hydraulic fixing frame 10; a plurality of connecting frames I2 are provided on the lower frame 1, and each connecting frame I2 is installed with a steel wire rope, and the four corners of the lower frame 1 are fixedly installed with corner blocks 3, the lower ends of the corner blocks 3 are provided with sliding holes for installing connecting slide shafts 26, and the sides are provided with sliding holes for sliding mounting blocks 7; the upper frame 8 is arranged on the upper part of the lower frame 1, and a plurality of connecting frames I2 are provided on the upper frame 8, and each connecting frame I2 is installed with a steel wire rope, the steel wire rope installed on the connecting frame I2 on the lower frame 1 is connected to the ends of the steel wire rope installed on the connecting frame I2 on the upper frame 8, and the crane is connected to these steel wire rope connection positions; the transverse steel frame 9 is fixedly installed at the middle position of the upper end of the upper frame 8, and four hydraulic fixing frames 10 are fixedly installed on the transverse steel frame 9.

[0039] Implementation example Figure 3 、 Figure 11 、 Figure 12 As shown, the connecting mechanism includes: a rotating shaft 4, a cam 5, a slide rod Ⅰ6, a block 7, and a connecting slide shaft 26; the rotating shaft 4 axially passes through the lower frame 1, and both ends of the rotating shaft 4 are fixedly connected to the cam 5, and both end surfaces of the rotating shaft 4 are provided with handles for rotating the rotating shaft 4; two cams 5 are installed at one end of the rotating shaft 4, and two cams 5 are also installed at the other end; the outer wall of the cam 5 contacts one end of the slide rod Ⅰ6, and the slide rod Ⅰ6 is slidably connected to the lower frame 1, and the outside of the slide rod Ⅰ6 is wrapped with a spring, which connects the slide rod Ⅰ6 and the lower frame 1. The lower frame 1 and the other end of the slide rod Ⅰ6 are fixedly installed with a clamping block 7, which is slidably installed in the sliding hole provided on the side of the corner block 3. The clamping block 7 is used to be clamped into the clamping groove provided on the outer wall of the connecting slide shaft 26 to fix the connecting slide shaft 26; the lower end of the connecting slide shaft 26 is fixedly installed on the clamping plate frame 25, and the connecting slide shaft 26 can slide into the sliding hole provided at the lower end of the corner block 3; there are multiple connecting mechanisms, which are used to fix different connecting slide shafts 26 respectively, and then the two fixing mechanisms are connected to the frame mechanism, so as to facilitate the fixing mechanism to clamp the container.

[0040] Implementation example Figure 12 、 Figure 13 、 Figure 14As shown, the fixed clamping mechanism includes: a clamping frame 25, a clamping plate 28, a push rod 29, and a hydraulic cylinder II 30; connecting slide shafts 26 are fixedly installed on both sides of the upper end surface of the clamping frame 25, and the position of the connecting slide shaft 26 coincides with the position of the sliding hole provided at the lower end of the corner block 3; the clamping plate 28 is rotatably installed with the clamping frame 25 through the axis, and the upper end of the clamping plate 28 is rotatably installed on the rotating connecting block provided at one end of the push rod 29, and the other end of the push rod 29 is fixedly connected to the hydraulic cylinder II 30; push rods 29 are fixedly installed on both sides of the hydraulic cylinder II 30; a clamping plate 28 is installed on both sides of a clamping frame 25; two push rods 29 and hydraulic cylinder II 30 are installed inside the clamping frame 25; the hydraulic cylinder II 30 pushes the two push rods 29 to move in opposite directions, thereby pushing the two clamping plates 28 to flip, so that the two clamping plates 28 clamp the container; the fixed clamping mechanism has two mirror-symmetrical arrangements, which are respectively installed on both sides of the lower frame 1.

[0041] Implementation example Figure 5-Figure 7 、 Figure 9 、 Figure 10 、 Figure 14As shown, the vertical positioning mechanism includes: a hydraulic cylinder Ⅰ11, a turning frame Ⅰ17, a vertical positioning roller Ⅰ18, a coil spring 21, a turning frame Ⅱ22, a vertical positioning roller Ⅱ23, a rotating cylinder 24, a limiting clamp 27, and a positioning slide Ⅱ31; the end of the hydraulic rod of the hydraulic cylinder Ⅰ11 contacts the side of the positioning clamp rod 14, and the hydraulic cylinder Ⅰ11 is fixedly installed on the hydraulic fixing frame 10; the turning frame Ⅰ17 is rotatably installed on the shafts provided on both sides of the lower end of the positioning slide Ⅰ16; at the same time, coil springs 21 are installed on the shafts provided on both sides of the lower end of the positioning slide Ⅰ16, and the coil springs 21 connect the turning frame Ⅰ17 and the positioning slide Ⅰ16 to drive the turning frame Ⅰ17 to turn over. A groove is provided on the lower end surface of the turning frame Ⅰ17, and a vertical positioning roller Ⅰ18 is rotatably installed in the groove. At the same time, the vertical positioning roller Ⅰ18 is connected to the motor, and the motor is fixedly connected to the turning frame Ⅰ17. The motor drives the vertical positioning roller Ⅰ18 to rotate, thereby rotating the vertical positioning roller Ⅰ18 on the container provided below, so that the device and the container clamped by the device are vertically aligned with the container placed below, until the container placed below is completely in contact with the side of the positioning slide bar Ⅱ31, thereby aligning the two containers through the positioning slide bar Ⅱ31; the turning frame Ⅱ22 is rotatably installed on the side of the positioning clamping rod 14 In some grooves, at the same time, one end of the shaft connecting the turning frame Ⅱ 22 and the positioning clamp rod 14 is fixedly installed with a rotating cylinder 24, and the rotating cylinder 24 is fixedly installed on the positioning clamp rod 14; the lower end surface of the turning frame Ⅱ 22 is provided with a groove, and a vertical positioning roller Ⅱ 23 is rotatably installed in the groove. The shaft of the vertical positioning roller Ⅱ 23 is connected to the motor, and the motor is fixedly connected to the turning frame Ⅱ 22, and the motor drives the vertical positioning roller Ⅱ 23 to rotate; thereby causing the vertical positioning roller Ⅱ 23 to rotate on the container, and then driving the device to move vertically relative to the container so that the device is vertically aligned with the container; until the container and the side of the positioning slide bar Ⅱ 31 are completely aligned. After full contact, the container and the device are aligned through the positioning slide bar II 31; the limiting clamp 27 is fixedly installed on the side of the clamping frame 25, and two limiting clamps 27 are provided on each clamping frame 25; the positioning slide bar II 31 is slidably installed in the limiting clamp 27 and can slide within the limiting clamp 27; when the crane places the device on the container, the positioning slide bar II 31 contacts the container, and the container pushes the positioning slide bar II 31 to move upward under the restriction of the limiting clamp 27. After the positioning slide bar II 31 is no longer in contact with the container, the positioning slide bar II 31 slides down and is outside the container. At this time, the motor drives the vertical positioning roller II 23 to rotate;This causes the vertical positioning roller II 23 to rotate on the container, which in turn drives the device to move vertically relative to the container, thereby vertically aligning the device relative to the container. At this time, the side of the positioning slide II 31 outside the container contacts the outer wall of the container. The positioning slide II 31 on the container moves to the outside of the container. At this time, the positioning slide II 31 slides down, causing the side of the positioning slide II 31 to contact the container. At this time, the four positioning slides II 31 confine the container in the middle of the device. When aligning two containers, the same process is used. The motor drives the vertical positioning roller I 18 to rotate, thereby rotating the vertical positioning roller I 18 on the container located below, thereby vertically aligning the device and the container clamped by the device relative to the container placed below, until all four positioning slides II 31 slide down and contact the outer wall of the container placed below. The device, the container fixed in the device, and the container placed below are vertically aligned through the four positioning slides II 31.

[0042] Implementation example Figure 5-Figure 8As shown, the lateral positioning mechanism includes: a connecting frame II 12, an insert 13, a positioning clamping rod 14, a wire wheel 15, a positioning slide rod I 16, a slide rod II 19, and a lateral positioning roller 20; the connecting frame II 12 is fixedly installed on the lower frame 1, and a positioning clamping rod 14 can be placed in the middle of the connecting frame II 12. After the positioning clamping rod 14 is placed in the middle of the connecting frame II 12, the insert 13 is inserted into the connecting hole of the connecting frame II 12 and the connecting hole provided on the positioning clamping rod 14 to connect the connecting frame II 12 and the positioning clamping rod 14; the lower end of the positioning clamping rod 14 is provided with a slide groove, and the slide groove is provided with a plurality of slots. A positioning slide bar Ⅰ 16 is slidably installed, and a slide groove is provided at the lower end of the positioning slide bar Ⅰ 16. A slide bar Ⅱ 19 is slidably installed in the slide groove. A spring is provided on the slide bar Ⅱ 19, and the spring connects the slide bar Ⅱ 19 and the positioning slide bar Ⅰ 16. A groove is provided under the slide bar Ⅱ 19, and a transverse positioning roller 20 is rotatably installed in the groove. One end of the transverse positioning roller 20 is provided with an axis connected to the motor through a chain group, and the motor is fixedly installed in the groove provided on the side of the slide bar Ⅱ 19; a groove is provided on the upper part of the positioning clamping rod 14, and a wire wheel 15 is rotatably installed in the groove, and the wire wheel 15 is connected to the motor. Thus, the motor drives the wire wheel 15 to rotate; a wire rope is wound around the wire wheel 15, and the end of the wire rope is fixedly connected to the upper end of the positioning slide rod Ⅰ 16; when the transverse positioning roller 20 contacts the upper end of the container placed below, the container pushes the transverse positioning roller 20 to drive the slide rod Ⅱ 19 to move upward, compressing the spring provided on the slide rod Ⅱ 19. At this time, the motor drives the transverse positioning roller 20 to rotate, and then drives the device and the container fixed in the device to move horizontally relative to the container placed below, until the compressed spring of the slide rod Ⅱ 19 pops out. At this time, the side of the slide bar II 19 contacts the container. At this time, the four slide bars II 19 align the device and the container fixed in the device with the container placed below in the horizontal direction; the positioning clamp rod 14 is connected to the connecting frame II 12 through the insertion strip 13. After removing the insertion strip 13, the positioning clamp rod 14 can be separated from the connecting frame II 12, and the positioning slide bar II 31 can be taken out from the limiting clamp 27. At this time, different numbers and positions of vertical positioning mechanisms and horizontal positioning mechanisms can be installed on the frame device and the fixing device according to needs to adapt to different situations.

[0043] Working principle: When it is necessary to use this equipment to transport containers at the port, first install the two fixing mechanisms on both sides of the lower frame 1, insert the connecting slide shaft 26 into the slide hole provided at the lower end of the corner block 3, and then rotate the rotating shaft 4 through the handle provided on the rotating shaft 4, thereby driving the cam 5 to rotate, and then push the slide rod Ⅰ6 to move through the cam 5, and then drive the card block 7 to be inserted into the card groove provided on the outer wall of the connecting slide shaft 26, and connect the fixing mechanism to the corner block 3; then install different numbers and different positions of vertical positioning mechanisms and horizontal positioning mechanisms according to needs, and then connect the crane to the wire rope provided on this equipment, so that the crane can lift the frame mechanism in this equipment through the wire rope, and then lift this equipment;

[0044] Then the hydraulic cylinder I11 drives the positioning clamp rod 14 to flip, so that the positioning clamp rod 14 flips a certain angle relative to the connecting frame II12. At this time, the equipment is moved to the top of the container by the crane, and then the equipment is lowered. At this time, the rotating cylinder 24 drives the turning frame II22 to flip, and flips the turning frame II22 out of the groove provided on the side of the positioning clamp rod 14. At this time, the vertical positioning roller II23 is perpendicular to the upper end face of the container. Then, the equipment is lowered. After the tilted positioning clamp rod 14 contacts the container, the equipment is gradually moved to the container position for horizontal alignment. Then, the vertical positioning roller II23 contacts the upper end of the container, and then the vertical positioning roller II23 rotates under the drive of the motor to perform vertical alignment. After alignment, the positioning slide bar II31 slides off the limiting clamp 27, and the lower end of the positioning slide bar II31 exceeds the lower end of the container, which is convenient for aligning the two containers through the positioning slide bar II31.

[0045] After alignment, the hydraulic cylinder II 30 drives the clamping plate 28 to clamp and fix the container, thereby fixing the device to the container. At this time, the crane lifts the device and the fixed container and transports them to the designated location. At this time, the motor connected to the wire wheel 15 rotates to drive the wire wheel 15 to rotate, thereby driving the positioning slide rod I 16 to move downward until the positioning slide rod I 16 drives the turnover frame I 17 to move to a position beyond the container. The turnover frame I 17 rotates under the drive of the coil spring 21, so that there is a certain distance between the upper end of the turnover frame I 17 and the lower end of the container. At this time, the wire wheel 15 stops rotating.

[0046] The crane then lowers the container, causing the vertical positioning rollers I 18 to contact the container below for vertical alignment, while the horizontal positioning rollers 20 and the slide bars II 19 align the two containers horizontally, thereby aligning the two containers for easier stacking. The hydraulic cylinder I 11 then drives the positioning clamping rods 14 to flip, thereby driving the positioning slide bars I 16 and then the flip frame I 17 to remove it from the gap between the two containers. The two containers are now stacked together, not only overlapping in position but also stacked more tightly.

[0047] While 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 these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crane spreader used in ports, comprising a frame mechanism, a connecting mechanism, a fixing and clamping mechanism, a vertical positioning mechanism, and a horizontal positioning mechanism; characterized in that: The lateral positioning mechanism includes a connecting frame II (12) fixedly mounted on the frame mechanism, a positioning clamping rod (14) placed in the middle of the connecting frame II (12), a plug (13) connecting the connecting frame II (12) and the positioning clamping rod (14), a positioning slide rod I (16) slidably mounted in a slide groove provided at the lower end of the positioning clamping rod (14), a slide rod II (19) slidably mounted in a slide groove provided at the lower end of the positioning slide rod I (16), a lateral positioning roller (20) connected to the motor and rotatably mounted in a groove provided under the slide rod II (19), and a wire wheel (15) connected to the motor and wound with a wire rope connected to the positioning slide rod I (16); The vertical positioning mechanism includes a hydraulic cylinder I (11) whose end of the hydraulic rod contacts the side of the positioning clamp rod (14), a turning frame I (17) rotatably mounted on the shaft provided on both sides of the lower end of the positioning slide rod I (16), a vertical positioning roller I (18) rotatably mounted in a groove provided on the lower end surface of the turning frame I (17), a coil spring (21) connecting the turning frame I (17) and the positioning slide rod I (16) to drive the turning frame I (17) to turn, a turning frame II (22) rotatably mounted in a groove provided on the side of the positioning clamp rod (14), a vertical positioning roller II (23) rotatably mounted in a groove provided on the lower end surface of the turning frame II (22), a rotating cylinder (24) fixedly mounted on the shaft connecting the turning frame II (22) and the positioning clamp rod (14), a limiting clamp (27) fixedly mounted in the fixed clamping mechanism, and a positioning slide rod II (31) slidably mounted on the limiting clamp (27); The connecting mechanism comprises a rotating shaft (4) with handles provided on both end surfaces, a cam (5) fixedly mounted on both ends of the rotating shaft (4), a slide rod I (6) in contact with the outer wall of the cam (5), a clamping block (7) fixedly mounted on the other end of the slide rod I (6), and a connecting slide shaft (26) with a clamping groove provided on the outer wall for clamping the clamping block (7); The fixed clamping mechanism includes a clamping plate frame (25) with a connecting sliding shaft (26) fixedly installed on both sides, a clamping plate (28) rotatably installed with the clamping plate frame (25) through the shaft, a push rod (29) rotatably installed with the upper end of the clamping plate (28) through a rotating connecting block, and a hydraulic cylinder II (30) that pushes the two push rods (29) to move in opposite directions; The frame mechanism includes a lower frame (1) rotatably mounted with a rotating shaft (4), four corner blocks (3) fixedly mounted at four corner positions of the lower frame (1), an upper frame (8) arranged above the lower frame (1), a transverse steel frame (9) fixedly mounted on the upper end of the upper frame (8), a plurality of hydraulic fixing frames (10) fixedly mounted on the transverse steel frame (9), and a plurality of connecting frames I (2) fixedly mounted on the lower frame (1) and the upper frame (8).

2. A crane spreader used in a port according to claim 1, characterized in that: The connecting frame I (2) is equipped with steel wire ropes, the ends of which are connected together and connected to the crane.

3. The crane spreader used in a port according to claim 1, characterized in that: The two fixed clamping mechanisms are arranged in a mirror-symmetrical manner and are respectively installed on both sides of the frame mechanism.

4. The crane spreader used in a port according to claim 1, characterized in that: There are multiple connecting mechanisms, which connect the two fixing mechanisms with the frame mechanism, making it easier for the fixing mechanisms to clamp the container.

5. The crane spreader used in a port according to claim 1, characterized in that: The insert (13) connects the positioning clamp rod (14) to the connecting frame II (12). After removing the insert (13), the positioning clamp rod (14) and the connecting frame II (12) are separated, and the positioning slide II (31) can be taken out from the limiting clamp (27). At this time, vertical positioning mechanisms and horizontal positioning mechanisms of different numbers and positions are installed on the frame device and the fixing device to adapt to different situations.

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