Container lifting appliance

Abstract

The utility model discloses a container spreader, and relates to the technical field of load hanging devices which are used for transmitting lifting force to an object through mechanical devices and used for being connected with the mechanical devices, the container spreader comprises a hanging frame, rotating mechanisms, a protection frame and a claw frame, the rotating mechanisms are arranged at the two ends of the hanging frame in the length direction, the protection frame is arranged below the hanging frame, and the claw frame is arranged below the hanging frame. The two ends of the claw frame are rotationally arranged on the hanging bracket through rotating mechanisms respectively, the claw frame is vertically arranged in the protection frame in a sliding mode, a limiting block is arranged at the bottom of the protection frame, and a limiting mechanism is arranged between the claw frame and the protection frame. In the using process, the rotating mechanism drives the hanging bracket to drive the container and the protection frame to rotate in the width direction of the container, materials are discharged, and compared with an existing mode, the rotating arm of force is small, and rotating stability is good; the rotating mechanism does not need to be arranged on the side face of the container, the limitation of container intervals on the rotating structure of the bridge crane is broken through, and application of the bridge crane in the aspect of container overturning unloading is achieved.

Description

Technical Field

[0001] The utility model relates to a load hanging device which uses a mechanical device to transmit lifting force to an object and is used for connecting with these mechanisms, in particular to a container hanging device. Background Art

[0002] Long-distance transportation of bulk materials such as ore is usually completed by rail transportation. Containers have been rapidly promoted in rail transportation due to their great advantages in versatility, interchangeability, safety and economy.

[0003] Materials loaded in traditional containers are unloaded through their side doors, and the unloading speed is slow. In order to improve the unloading efficiency, the applicant disclosed "a rotating spreader for containers" in the Chinese invention patent application number 2018114210107, which has a lifting drive mechanism between the gantry and the lifting frame, and a rotating drive mechanism between the vertical arm and the lifting frame. When in use, the lifting cylinder is used to control the lifting frame to slide on the gantry to achieve the lifting and lowering of the spreader on the gantry, thereby determining the limit height of the spreader, and the rotating cylinder is used to drive the rotating arm to rotate around the rotating shaft through the rack and gear, so as to achieve the tilting or flipping unloading of the container.

[0004] In the Chinese utility model patent with application number 2013205712592, "a container sling" is also disclosed, which includes a fixed base fixed to the hanger, an adjustable base fixed to the container, and a driving mechanism connected between the fixed base and the adjustable base. The driving mechanism drives the adjustable base to rotate relative to the fixed base to achieve the purpose of adjusting the tilt angle.

[0005] It is not difficult to see that the above technical solutions all rotate the container loaded with materials along its length direction to achieve the purpose of unloading, which has the problems of large rotation arm and poor rotation stability; in actual production, in order to save transportation capacity, a general flatbed train usually loads two 20-foot standard containers along the length direction, so that the distance between the two containers is small. When the bridge crane at the station lifts the container, it is difficult to set a rotating structure at both ends of the container in the length direction, and the purpose of flipping and unloading cannot be achieved. Summary of the invention

[0006] In order to overcome the shortcomings of existing container unloading, such as large rotation arm, poor rotation stability, and inability of bridge cranes to achieve overturning unloading, the utility model provides a container spreader with simple structure and good rotation stability.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a container spreader, characterized in that it includes a hanger, a rotating mechanism, a protection frame and a claw frame, the rotating mechanism is arranged at both ends of the hanger in the length direction, the protection frame is arranged below the hanger, and its two ends are respectively rotated and arranged on the hanger through the rotating mechanism, the claw frame is arranged in the protection frame along the vertical sliding, a limit block is arranged at the bottom of the protection frame, a limit mechanism is arranged between the claw frame and the protection frame, a four-long-axis rotary lock is arranged on the claw frame, and a locking drive mechanism is arranged between the long-axis rotary lock and the claw frame.

[0008] Preferably, the limiting mechanism includes a limiting pin, two limiting rings and a limiting driving mechanism, the limiting rings are respectively fixed on the protection frame and the claw frame, and the limiting driving mechanism is arranged on the claw frame, which drives the limiting pin to penetrate into the two limiting rings or be pulled out from the two limiting rings.

[0009] Preferably, the limit drive mechanism includes a reversing connecting rod and a limit drive telescopic part, the reversing connecting rod is hinged on the claw frame, the cylinder body of the limit drive telescopic part is hinged on the claw frame, its piston rod is hinged to one end of the reversing connecting rod, and the other end of the reversing connecting rod is hinged to one end of the limit pin.

[0010] Preferably, the limiting mechanism comprises a multi-rod assembly and a supporting telescopic member, the multi-rod assembly is connected between the protection frame and the claw frame, the cylinder body of the supporting telescopic member is hinged on the protection frame, and the piston rod thereof is hinged on the multi-rod assembly.

[0011] Preferably, the hanger includes a horizontally arranged transverse frame body and two vertically arranged vertical frame bodies, the two vertical frame bodies are fixed at both ends of the length direction of the transverse frame body, and the rotating mechanisms are correspondingly arranged on the bottoms of the two vertical frame bodies.

[0012] Preferably, the rotating mechanism includes a rotating seat and a rotating shaft, the rotating seat is fixed on the hanger, one end of the rotating shaft is connected to the protection frame, and the other end is rotatably supported on the rotating seat, and a driving assembly is provided between the rotating shaft and the rotating seat.

[0013] Preferably, the driving assembly includes a gear, two racks and two bidirectional telescopic parts, the gear is assembled on the rotating shaft, the bidirectional telescopic parts are respectively arranged on the upper and lower sides of the gear, and the rack is arranged on the cylinder body corresponding to the bidirectional telescopic part and meshes with the gear.

[0014] Preferably, the protection frame includes four vertically arranged columns and a side frame body and an end frame body sequentially connected between the four columns, and the side frame body, the end frame body and the columns form a bottomless and coverless rectangular parallelepiped.

[0015] Preferably, the locking drive mechanism comprises a locking telescopic member, a cylinder body of which is arranged on the claw frame, and piston rods are respectively connected to corresponding long-axis rotary locks.

[0016] The utility model includes a hanger, a rotating mechanism, a protection frame and a claw frame, wherein the rotating mechanism is arranged at both ends of the hanger in the length direction, the protection frame is arranged below the hanger, and its two ends are respectively rotated and arranged on the hanger through the rotating mechanism, the claw frame is arranged in the protection frame along the vertical sliding, a limit block is arranged at the bottom of the protection frame, and a limit mechanism is arranged between the claw frame and the protection frame. When in use, the rotating mechanism drives the hanger to drive the container and the protection frame to rotate along the width direction of the container to unload the materials. Compared with the existing method, its rotation arm is small and the rotation stability is good; the rotating mechanism does not interfere with the long-axis rotary lock locking the container, that is, it is not necessary to place the rotating mechanism on the side of the container, which breaks the limitation of the container interval on the setting of the rotating structure of the bridge crane, and realizes the application of the bridge crane in the container flipping and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0019] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;

[0020] Figure 4 It is another structural schematic diagram of the utility model;

[0021] Figure 5 yes Figure 4 The view along the direction indicated by C in the figure;

[0022] Figure 6 yes Figure 5 Schematic diagram of the action positions of the middle multi-rod assembly and supporting telescopic parts.

[0023] Markings in the figure: 1. hanger, 11. horizontal frame, 12. vertical frame, 13. connecting seat, 2. rotating mechanism, 21. rotating seat, 22. rotating shaft, 23. driving assembly, 231. gear, 232. rack, 233. two-way telescopic part, 3. protection frame, 31. column, 32. side frame, 33. end frame, 34. limit block, 4. claw frame, 41. long axis rotary lock, 42. locking drive mechanism, 421. locking telescopic part, 5. limit mechanism, 51. limit pin, 52. limit ring, 53. limit drive mechanism, 531. reversing connecting rod, 532. limit drive telescopic part, 54. multi-rod assembly, 55. support telescopic part. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0025] like Figure 1 As shown, a container spreader comprises a hanger 1, a rotating mechanism 2, a protection frame 3 and a claw frame 4.

[0026] The hanger 1 is used to connect the suspension rope of the bridge crane, and includes a horizontally arranged cross frame body 11 and two vertically arranged vertical frames 12. Figure 1 As shown, the two vertical frames 12 are fixed on both ends of the horizontal frame 11 in the length direction.

[0027] Connecting seats 13 are provided at the four corners of the cross frame body 11 to facilitate the connection of the suspension rope of the bridge crane.

[0028] The protection frame 3 is arranged below the hanger 1, and includes four vertically arranged columns 31, and a side frame body 32 and an end frame body 33 connected in sequence between the four columns 31. The side frame body 32, the end frame body 33 and the columns 31 form a bottomless and coverless rectangular parallelepiped.

[0029] The two ends of the protection frame 3 are respectively rotated and arranged on the hanger 1 through the rotating mechanism 2. Specifically, there are two rotating mechanisms 2, which are respectively arranged on the bottom of the two vertical frame bodies 12. Figure 1 , Figure 2 As shown, the rotating mechanism 2 includes a rotating seat 21 and a rotating shaft 22, wherein the rotating seat 21 is fixed on the bottom of the vertical frame body 12 of the hanger 1, one end of the rotating shaft 22 is connected to the protection frame 3, and the other end is rotatably supported on the rotating seat 21, and a driving component 23 is provided between the rotating shaft 22 and the rotating seat 21.

[0030] like Figure 2 As shown, the driving assembly 23 includes a gear 231, two racks 232 and two bidirectional telescopic members 233. The gear 231 is assembled on the rotating shaft 22, and the two bidirectional telescopic members 233 are respectively arranged on the upper and lower sides of the gear 231. The rack 232 is arranged on the cylinder body corresponding to the bidirectional telescopic member 233 and meshes with the gear 231. When in use, the bidirectional telescopic member 233 drives the rack 232 and then drives the gear 231 to rotate, so that the rotating shaft 22 drives the protection frame 3 and the container to rotate.

[0031] like Figure 1 As shown, the claw frame 4 is vertically slidably arranged in the protection frame 3, and the bottoms of the four columns 31 of the protection frame 3 are respectively provided with limit blocks 34, and a limit mechanism 5 is provided between the claw frame 4 and the protection frame 3. In the present utility model, there are four groups of limit mechanisms 5, which are respectively arranged at the top of the claw frame 4 near the four corners, and each group of limit mechanisms 5 includes a limit pin 51, two limit rings 52 and a limit drive mechanism 53, as shown in FIG. Figure 3As shown, the limit rings 52 are fixed on the protection frame 3 and the claw frame 4 respectively; the limit driving mechanism 53 is arranged on the claw frame 4, which includes a reversing connecting rod 531 and a limit driving telescopic member 532, wherein the reversing connecting rod 531 is hinged on the claw frame 4, the cylinder body of the limit driving telescopic member 532 is hinged on the claw frame 4, its piston rod is hinged to one end of the reversing connecting rod 531, and the other end of the reversing connecting rod 531 is hinged to one end of the limit pin 51, and the limit driving mechanism 53 drives the limit pin 51 to penetrate into the two limit rings 52 or be pulled out by the two limit rings 52.

[0032] Long-axis rotary locks 41 are respectively provided on the top of the four corners of the claw frame 4, and a locking drive mechanism 42 is provided between the long-axis rotary locks 41 and the claw frame 4. Figure 3 As shown, the locking drive mechanism 42 includes a locking telescopic member 421 , a cylinder body of the locking telescopic member 421 is arranged on the claw frame 4 , and piston rods are respectively connected to corresponding long-axis rotary locks 41 .

[0033] When in use, the limit pin 51 is first driven by the limit driving mechanism 53 to be pulled out of the two limit rings 52, and then the bridge crane is used to lift the hanger 1, and the claw frame 4 slides vertically to the bottom of the protection frame 3 and is limited by the limit block 34. Then the bridge crane is used to lift the hanger 1 to the top of the container and slowly drops it until the long-axis rotary lock 41 on the claw frame 4 locks the container, and then the bridge crane is used to lift the hanger 1, and the container is lifted off the flatbed train and placed on the ground, and the hanger 1 continues to drop, and the protection frame 3 drops and is sleeved on the outside of the container. Under the support of the container, the claw frame 4 rises relative to the protection frame 3 until the two opposite limit rings 52 are aligned, and the limit driving mechanism 53 drives the limit pin 51 to penetrate the two limit rings 52, so that the claw frame 4 and the protection frame 3 are locked, and the rotating mechanism 2 drives the protection frame 3 to drive the container to rotate, and the material in the container is unloaded. Example 2

[0034] like Figure 4 As shown, the difference from Embodiment 1 is that, in this embodiment, the limiting mechanism 5 includes a multi-rod assembly 54 and a supporting telescopic member 55 .

[0035] Combination Figure 5 , Figure 6 As shown, the multi-rod assembly 54 is connected between the protection frame 3 and the claw frame 4 , the cylinder body supporting the telescopic member 55 is hinged on the protection frame 3 , and its piston rod is hinged on the multi-rod assembly 54 .

[0036] It should be noted that the multi-rod assembly 54 can be a conventionally connected multi-rod mechanism. In the present embodiment, the multi-rod assembly 54 includes an upper connecting rod and a lower connecting rod. The upper end of the upper connecting rod is hinged to the claw frame 4, and the lower end is hinged to the upper end of the lower connecting rod. The lower end of the lower connecting rod is hinged to the protective frame 3. The cylinder body supporting the telescopic member 55 is coaxially hinged to the protective frame 3 with the lower end of the lower connecting rod, and its piston rod is hinged to the upper connecting rod.

[0037] When in use, the hanger 1 is lifted to the top of the container by a bridge crane, and the piston rod of the supporting telescopic member 55 is controlled to retract first, so that the claw frame 4 falls to the lower limit position, and the long-axis rotary lock 41 extends to the bottom of the rotating mechanism 2, that is, when the rotating mechanism 2 is higher than the container, the long-axis rotary lock 41 can lock the container, and then the piston rod of the supporting telescopic member 55 is controlled to extend, and the claw frame 4 drives the container to rise until it reaches the upper limit position. At this time, the protection frame 3 surrounds the container, and finally the rotating mechanism 2 drives the protection frame 3 to drive the container to rotate, and the materials in the container are unloaded.

[0038] It should be further explained that the two-way telescopic member 233, the locking telescopic member 421, the limit drive telescopic member 532, and the supporting telescopic member 55 can be selected from cylinders or oil cylinders. In the present utility model, the two-way telescopic member is specifically a two-way cylinder, the locking telescopic member is specifically a locking oil cylinder, the limit drive telescopic member is specifically a limit drive cylinder, and the supporting telescopic member is specifically a supporting cylinder.

[0039] The utility model is that a rotating mechanism 2 drives a hanger 1 to drive a container and a protection frame 3 to rotate along the width direction of the container to unload materials. Compared with the existing method, the rotating force arm is small and the rotation stability is good; the rotating mechanism 2 does not interfere with the long-axis rotary lock 41 to lock the container, that is, there is no need to place the rotating mechanism 2 on the side of the container, which breaks the restriction of the container interval on the setting of the rotating structure of the bridge crane and realizes the application of the bridge crane in the container flipping and unloading.

Claims

1. A container spreader, characterized in that: It includes a hanger, a rotating mechanism, a protection frame and a claw frame. The rotating mechanism is arranged at both ends of the hanger in the length direction, the protection frame is arranged below the hanger, and its two ends are respectively rotated and arranged on the hanger through the rotating mechanism. The claw frame is arranged in the protection frame along the vertical sliding, a limit block is arranged at the bottom of the protection frame, a limit mechanism is arranged between the claw frame and the protection frame, a four-long-axis rotary lock is arranged on the claw frame, and a locking drive mechanism is arranged between the long-axis rotary lock and the claw frame.

2. A container spreader according to claim 1, characterized in that: The limiting mechanism includes a limiting pin, two limiting rings and a limiting driving mechanism. The limiting rings are respectively fixed on the protection frame and the claw frame. The limiting driving mechanism is arranged on the claw frame, and drives the limiting pin to penetrate into the two limiting rings or be drawn out from the two limiting rings.

3. A container spreader according to claim 2, characterized in that: The limit drive mechanism includes a reversing connecting rod and a limit drive telescopic member, the reversing connecting rod is hinged on the claw frame, the cylinder body of the limit drive telescopic member is hinged on the claw frame, its piston rod is hinged to one end of the reversing connecting rod, and the other end of the reversing connecting rod is hinged to one end of the limit pin.

4. A container spreader according to claim 1, characterized in that: The limiting mechanism comprises a multi-rod assembly and a supporting telescopic member, wherein the multi-rod assembly is connected between the protection frame and the claw frame, the cylinder body of the supporting telescopic member is hinged on the protection frame, and the piston rod thereof is hinged on the multi-rod assembly.

5. The container spreader according to claim 1, characterized in that: The hanger comprises a horizontally arranged transverse frame body and two vertically arranged vertical frame bodies, the two vertical frame bodies are fixed at both ends of the length direction of the transverse frame body, and the rotating mechanisms are respectively arranged on the bottoms of the two vertical frame bodies.

6. A container spreader according to claim 1, characterized in that: The rotating mechanism comprises a rotating seat and a rotating shaft. The rotating seat is fixed on the hanger. One end of the rotating shaft is connected to the protection frame, and the other end is rotatably supported on the rotating seat. A driving component is arranged between the rotating shaft and the rotating seat.

7. A container spreader according to claim 6, characterized in that: The driving assembly includes a gear, two racks and two bidirectional telescopic parts. The gear is assembled on the rotating shaft. The bidirectional telescopic parts are respectively arranged on the upper and lower sides of the gear. The rack is arranged on the cylinder body corresponding to the bidirectional telescopic part and meshes with the gear.

8. The container spreader according to claim 1, characterized in that: The protection frame includes four vertically arranged columns and a side frame body and an end frame body connected in sequence between the four columns. The side frame body, the end frame body and the columns form a bottomless and coverless rectangular parallelepiped shape, and the limit block is arranged at the bottom of the column.

9. The container spreader according to claim 1, characterized in that: The locking drive mechanism comprises a locking telescopic member, a cylinder body of which is arranged on a claw frame, and piston rods are respectively connected to corresponding long-axis rotary locks.

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