Rapid transition device for crawler crane

Abstract

The invention relates to a crawler crane transition device, in particular to a crawler crane rapid transition device which comprises a large crawler crane, a lifting oil cylinder A-type connecting frame is installed on the large crawler crane in a hinged mode, a super-lifting tray is detachably installed at the bottom of the lifting oil cylinder A-type connecting frame, and a plurality of fixing frames are fixedly arranged on the super-lifting tray. A balancing weight is installed in the fixing frame in an inserted mode, a plurality of limiting plates are arranged on the inner side of the fixing frame in a sliding mode, the limiting plates are used for clamping and fixing the balancing weight, a height-adjustable supporting seat is fixedly arranged at the bottom of the superlift tray, and fixing plates are further symmetrically and fixedly arranged at the bottom of the superlift tray. A transport vehicle drives into the bottom of the superlift tray to carry the superlift tray; through cooperation of the limiting plates driven by the springs in the fixing frame and the anti-slip strips, rapid insertion and self-locking of the balancing weights can be achieved, the assembling and disassembling efficiency of the balancing weights is remarkably improved, and a foundation is laid for rapid transition.

Description

Technical Field

[0001] This invention relates to a crawler crane transfer device, and more particularly to a crawler crane rapid transfer device. Background Technology

[0002] In the field of large-scale lifting projects, crawler cranes are core equipment. To meet the needs of lifting ultra-large tonnage loads, a superlift system containing a large number of counterweights is usually required. This superlift system is connected to the crawler crane body via a superlift pallet. In actual construction, crawler cranes often need to be moved between different work sites.

[0003] However, existing methods for relocating superlift systems have significant problems: when crawler cranes carry superlift systems between different work sites, there are issues with low efficiency in loading and unloading counterweights, difficulties in docking the superlift pallets with transport vehicles, and insecure securing. This results in low overall relocation efficiency for crawler cranes, or the need for additional heavy lifting equipment to assist in counterweight transfer, severely restricting construction progress and increasing operating costs and risks. Summary of the Invention

[0004] The main objective of this invention is to provide a rapid transfer device for crawler cranes to solve the problems raised in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a rapid transfer device for a crawler crane is provided, comprising a large crawler crane, on which a lifting cylinder A-type connecting frame is hingedly mounted, and a super-lifting pallet is detachably mounted at the bottom of the lifting cylinder A-type connecting frame. A plurality of fixing frames are fixedly disposed on the super-lifting pallet, and counterweights are inserted into the fixing frames. A plurality of limiting plates are slidably disposed on the inner side of the fixing frames, the limiting plates being used to clamp and fix the counterweights. An adjustable-height support seat is fixedly disposed at the bottom of the super-lifting pallet, and fixing plates are also symmetrically fixedly disposed at the bottom of the super-lifting pallet. A transport vehicle drives into the bottom of the super-lifting pallet to carry the super-lifting pallet, and limiting frames are rotatably disposed at both ends of the fixing plates.

[0006] Furthermore, a horizontal guide frame is fixedly connected to one end of the large crawler crane, a pull plate is fixedly connected to the top of the horizontal guide frame, and the top of the lifting cylinder A-type connecting frame is hinged to the pull plate.

[0007] Furthermore, a slot is provided through the fixed frame, the counterweight is inserted into the slot, and several grooves communicating with the slot are provided in the fixed frame, and the limiting plate is slidably installed in the groove.

[0008] Furthermore, the upper end of the limiting plate is arc-shaped, and an anti-slip strip is fixedly provided on the inner wall of the limiting plate. Springs are symmetrically fixedly provided in the grooves, with one end of the spring fixedly connected to the inner wall of the groove and the other end fixedly connected to the side wall of the limiting plate.

[0009] Furthermore, the lifting tray is in the form of a hollowed-out mesh, and a first guide pin is fixedly installed at the center of each fixed frame on the lifting tray. Furthermore, a positioning groove is provided at the center of the bottom of the counterweight, the first guide pin is inserted into the positioning groove, and a second guide pin is fixedly provided at the center of the top of the counterweight.

[0010] Furthermore, mounting cylinders are symmetrically fixed at both ends of the lifting tray, and pin holes are opened on the mounting cylinders. Pins are symmetrically fixed on the lifting cylinder A-type connecting frame, and the two ends of the pins are respectively snapped into the pin holes of the two mounting cylinders. Furthermore, the support base includes a fixed base and a connecting base slidably disposed above the fixed base, and the top of the connecting base is fixedly connected to the bottom of the lifting tray, and a jack is fixedly disposed inside the fixed base.

[0011] Furthermore, a connecting ring is fixedly connected to the bottom of the connecting seat, and an annular groove is provided on the fixed seat. The connecting ring is slidably installed in the annular groove, and a limit ring is fixedly connected to the lower end of the outer wall of the connecting ring.

[0012] Furthermore, a sliding groove is provided on the fixed plate, an electromagnetic plate is symmetrically fixedly arranged on the inner wall of one end of the sliding groove, a ball bearing is symmetrically rotatably arranged on the inner wall of the other end of the sliding groove, and a guide wheel plate is symmetrically fixedly arranged on the top of the transport vehicle, and the guide wheel plate is slidably arranged in the sliding groove.

[0013] Furthermore, the limiting frame includes a rotating plate symmetrically rotatably disposed at one end of two fixed plates, and a connecting rod is fixedly connected between the two rotating plates.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In this crawler crane rapid relocation device, the counterweight block can be quickly inserted and self-locked by the cooperation of the spring-driven limiting plate and anti-slip strip in the fixed frame, which eliminates the cumbersome process of traditional bolt fastening, significantly improves the loading and unloading efficiency of the counterweight block, and lays the foundation for rapid relocation.

[0015] 2. In this crawler crane rapid transfer device, the combination design of an adjustable height support base, a slide with guiding and magnetic fixing functions, and a flip-up limit frame enables the super-lift pallet to quickly and accurately dock and rigidly connect with different types of transport vehicles, realizing the rapid and safe transport of the super-lift pallet and its counterweight as a whole, thereby greatly improving the transfer efficiency of the crawler crane host. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the crawler crane rapid transfer device in a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of the lifting pallet connection in a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the overall structure of the lifting tray in a preferred embodiment of the present invention; Figure 4 This is a cross-sectional view of the fixed frame in a preferred embodiment of the present invention; Figure 5 This is a cross-sectional view of the support base in a preferred embodiment of the present invention; Figure 6 This is a cross-sectional view of the fixing plate in a preferred embodiment of the present invention.

[0017] Figure label: 1. Large crawler crane; 2. Horizontal guide frame; 3. Tie plate; 4. Pin shaft; 5. Lifting cylinder A-type connecting frame; 6. Lifting pallet; 61. First guide pin; 62. Mounting cylinder; 621. Pin hole; 63. Fixed plate; 631. Slide groove; 632. Electromagnetic plate; 633. Ball bearing; 64. Limiting bracket; 641. Rotating plate; 642. Connecting rod; 7. Counterweight; 71. Second guide pin; 8. Support base; 81. Fixed base; 811. Annular groove; 82. Connecting base; 83. Jack; 84. Connecting ring; 841. Limiting ring; 9. Fixing frame; 91. Limiting plate; 911. Anti-slip strip; 92. Groove; 93. Spring; 94. Slot. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0019] This embodiment provides a rapid transfer device for a crawler crane, including a large crawler crane 1. A lifting cylinder A-type connecting frame 5 is hinged to the large crawler crane 1. A lifting pallet 6 is detachably installed at the bottom of the lifting cylinder A-type connecting frame 5. Several fixing frames 9 are fixedly installed on the lifting pallet 6. A counterweight 7 is inserted into the fixing frame 9, and several limiting plates 91 are slidably arranged inside the fixing frame 9. The limiting plates 91 are used to clamp and fix the counterweight 7. An adjustable height support seat 8 is fixedly installed at the bottom of the lifting pallet 6. Fixing plates 63 are also symmetrically fixed at the bottom of the lifting pallet 6. A transport vehicle drives into the bottom of the lifting pallet 6 to carry it. Limiting frames 64 are rotatably installed at both ends of the fixing plates 63.

[0020] like Figure 1As shown, a horizontal guide frame 2 is fixedly connected to one end of the large crawler crane 1, and a pull plate 3 is fixedly connected to the top of the horizontal guide frame 2. A lifting cylinder is mounted on the lifting cylinder A-type connecting frame 5 to perform the extension and retraction of the hydraulic rod of the lifting cylinder A-type connecting frame 5, thereby assisting the top of the lifting cylinder A-type connecting frame 5 to be hingedly connected to the pull plate 3. The entire super-lifting pallet 6 is consistent with the original process, and is connected to the upper body of the large crawler crane 1 through the lifting cylinder A-type connecting frame 5 and the horizontal guide frame 2, and connected to the super-lifting mast through the pull plate 3.

[0021] like Figure 3 and Figure 4 As shown, a slot is provided through the fixed frame 9, and the counterweight 7 is inserted and installed in the slot. In order to realize the quick installation and automatic locking of the counterweight 7, a number of grooves 92 communicating with the slot are provided in the fixed frame 9, and the limiting plate 91 is slidably installed in the grooves 92.

[0022] like Figure 3 and Figure 4 As shown, the upper end of the limiting plate 91 is arc-shaped, and an anti-slip strip 911 is fixedly provided on the inner wall of the limiting plate 91. Springs 93 are symmetrically fixed in the grooves 92. One end of the spring 93 is fixedly connected to the inner wall of the groove 92, and the other end is fixedly connected to the side wall of the limiting plate 91. When the counterweight 7 is inserted into the slot of the fixing frame 9, its lower end will press against the arc-shaped end face of the limiting plate 91, forcing the limiting plate 91 to contract into the groove 92 and compress the spring 93. When the counterweight 7 is installed in place, the rebound force of the spring 93 will push the limiting plate 91 to tightly clamp the side wall of the counterweight 7. At the same time, the anti-slip strip 911 effectively prevents the counterweight 7 from sliding up and down during transportation or hoisting.

[0023] like Figure 2 and Figure 3 As shown, the lifting tray 6 has a hollowed-out mesh shape to reduce its weight while ensuring structural strength. To further ensure the positioning accuracy and stacking stability of the counterweights 7, a first guide pin 61 is fixedly installed at the center of each fixed frame 9 on the lifting tray 6. Correspondingly, a positioning groove is opened at the center of the bottom of the counterweight 7. During installation, the first guide pin 61 is precisely inserted into the positioning groove to guide and center it. In addition, a second guide pin 71 is fixedly installed at the center of the top of the counterweight 7. When it is necessary to add counterweight, the positioning groove at the bottom of another counterweight 7 can be aligned with the second guide pin 71 at the top of the counterweight 7 below it for stacking. To enhance the safety after stacking, slots 94 are symmetrically opened on the fixed frame 9. Baffles can be installed in the slots 94 to further limit the shaking of the stacked counterweights 7 during transportation.

[0024] like Figure 2 and Figure 3As shown, mounting cylinders 62 are symmetrically fixed at both ends of the super-lifting pallet 6. The mounting cylinders 62 have pin holes 621. Pins 4 are symmetrically fixed on the lifting cylinder A-type connecting frame 5. The two ends of the pins 4 are respectively snapped into the two mounting cylinders 62 and fixed in the pin holes 621. Locking bolts are threaded through the mounting cylinders 62 and the pins 4, thereby fixing the super-lifting pallet 6 on the lifting cylinder A-type connecting frame 5 and preventing the pins 4 from coming out of the pin holes 621, so that the super-lifting operation can be achieved by the large crawler crane 1. like Figure 1 As shown, when moving the large crawler crane 1 to the working position given in the lifting plan, the site along the crane's travel route should be flat enough, and obstacles on the site and in the driveway should be cleared to ensure that the large crawler crane 1 can operate smoothly along the travel route.

[0025] like Figure 2 and Figure 5 As shown, the support base 8 includes a fixed base 81 that contacts the ground and a connecting base 82 that is slidably disposed above the fixed base 81. The top of the connecting base 82 is fixedly connected to the bottom of the lifting tray 6. A jack 83 is fixedly disposed inside the fixed base 81 for lifting the connecting base 82, thereby adjusting the height of the entire lifting tray 6.

[0026] like Figure 5 As shown, a connecting ring 84 is fixedly connected to the bottom of the connecting seat 82. An annular groove 811 is provided on the fixed seat 81. The connecting ring 84 is slidably installed in the annular groove 811, and a limiting ring 841 is fixedly connected to the lower end of the outer wall of the connecting ring 84. The limiting ring 841 can prevent the connecting ring 84 from completely detaching from the annular groove 811, ensuring the structural stability of the support seat 8 when adjusting its height. According to the height of the transport vehicle, the height of the support seat 8 is adjusted by the jack 83. During the height adjustment process, the connecting ring 84 slides in the annular groove 811.

[0027] like Figure 2 and Figure 6 As shown, the fixed plate 63 has a sliding groove 631. An electromagnetic plate 632 is symmetrically fixed to the inner wall of one end of the sliding groove 631, and a ball bearing 633 is symmetrically rotatably mounted to the inner wall of the other end of the sliding groove 631. A guide wheel plate is symmetrically fixed to the top of the transport vehicle and slides within the sliding groove 631. When the transport vehicle enters the bottom of the lifting pallet 6, the guide wheel plate on its top will align and slide into the sliding groove 631. The guide wheel plate first contacts the ball bearing 633, using the rolling of the ball bearing 633 to reduce sliding friction resistance. When the guide wheel plate moves to the end of the sliding groove 631 and contacts the electromagnetic plate 632, the electromagnetic plate 632 is energized to generate magnetic force, which firmly attracts the guide wheel plate (usually made of steel), thereby achieving the initial and rapid fixation of the lifting pallet 6 and the transport vehicle.

[0028] like Figure 6 As shown, the limiting frame 64 includes a rotating plate 641 symmetrically rotated at one end of two fixed plates 63 via a pivot axis, and a connecting rod 642 is fixedly connected between the two rotating plates 641. After the transport vehicle is fully driven into the bottom of the lifting pallet 6 and initially fixed, the limiting frames 64 on both sides are rotated so that the connecting rod 642 is tightly attached to the front and rear ends of the transport vehicle, thereby forming a mechanical limit to prevent the lifting pallet 6 from slipping off the transport vehicle due to accidents during transportation. Preferably, a certain friction damping is provided at the pivot connection between the rotating plate 641 and the fixed plate 63, or screws are used for auxiliary fixing to ensure that the limiting frame 64 will not rotate arbitrarily when not in operation.

[0029] like Figure 2 As shown, the superlift pallet 6 has no restrictions on the transport vehicle; it is suitable for both flatbed truck transport and SPMT trolley transport. When the counterweight is light, a flatbed truck can be used to crawl under the superlift pallet 6 and carry the superlift pallet 6 with the counterweight blocks 7 stacked on it to the working radius. When the counterweight exceeds the rated load of the flatbed truck on site or when no flatbed truck is available, an SPMT trolley can be used to carry the superlift pallet 6.

[0030] In practical use, the large crawler crane 1 is moved to the working position specified in the lifting plan. According to the lifting requirements, a counterweight 7 is inserted and installed in the fixed frame 9. During the insertion process, the counterweight 7 presses against the arc-shaped end of the limiting plate 91 and compresses the spring 93. After the counterweight 7 is in place, the spring 93 rebounds and pushes the limiting plate 91 to clamp the counterweight 7. The anti-slip strip 911 prevents it from sliding, and the first guide pin 61 is inserted into the bottom positioning groove of the counterweight 7 to achieve precise centering. If stacking is required, the bottom positioning groove of the upper counterweight 7 is fitted into the second guide pin 71 on the top of the lower counterweight 7, and a baffle is installed in the slot 94 for further limiting. According to the height of the transport vehicle, the height of the support seat 8 is adjusted by the jack 83. Then the transport vehicle drives into the bottom of the lifting pallet 6. Its top guide wheel plate slides in along the slide groove 631 on the fixed plate 63. The guide wheel plate first contacts the ball 633 to reduce frictional resistance. After it is in place, the electromagnetic plate 632 is energized and magnetically fixed with the guide wheel plate to achieve a preliminary connection. Rotate the rotating plate 641 of the limit frame 64 on both sides so that the connecting rod 642 abuts against both ends of the transport vehicle. The transport vehicle carries the super-lift pallet 6, which is loaded with counterweight 7, to the working radius behind the large crawler crane 1. The lifting cylinder on the lifting cylinder A-type connecting frame 5 is operated to extend and retract the hydraulic rod, assisting the top of the lifting cylinder A-type connecting frame 5 to achieve hinge connection with the pull plate 3 at the top of the horizontal guide frame 2. The two ends of the pin shaft 4 are inserted into the pin holes 621 of the Angka mounting cylinder 62 and fixed with locking bolts to complete the rigid connection between the super-lift pallet 6 and the large crawler crane 1. After installation, super-lifting operations can be performed. After a lifting task is completed, the super-lifting device is lowered to the ground, the pin shaft 4 is pulled out, the entire super-lift pallet 6 is unloaded, and the large crawler crane 1 is moved to the next working position without load. The super-lift pallet 6 can be transferred to the next task area by the transport vehicle. The above process is repeated to achieve rapid relocation.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A rapid relocation device for a crawler crane, comprising a large crawler crane (1), wherein a lifting cylinder A-type connecting frame (5) is hingedly mounted on the large crawler crane (1), and a lifting pallet (6) is detachably mounted on the bottom of the lifting cylinder A-type connecting frame (5), characterized in that, The superlift pallet (6) is fixedly provided with several fixed frames (9), and a counterweight (7) is inserted and installed in the fixed frame (9). Several limiting plates (91) are slidably provided on the inner side of the fixed frame (9). The limiting plates (91) are used to clamp and fix the counterweight (7). An adjustable height support seat (8) is fixedly provided at the bottom of the superlift pallet (6). Fixed plates (63) are also symmetrically fixed at the bottom of the superlift pallet (6). The transport vehicle drives into the bottom of the superlift pallet (6) to carry it.

2. The crawler crane rapid transfer device according to claim 1, characterized in that, The large crawler crane (1) is fixedly connected to a horizontal guide frame (2) at one end, and a pull plate (3) is fixedly connected to the top of the horizontal guide frame (2). The top of the lifting cylinder A-type connecting frame (5) is hinged to the pull plate (3).

3. The crawler crane rapid transfer device according to claim 1, characterized in that, A slot is provided through the fixed frame (9), and the counterweight (7) is inserted into the slot. Several grooves (92) communicating with the slot are provided in the fixed frame (9), and the limiting plate (91) is slidably installed in the groove (92).

4. The crawler crane rapid transfer device according to claim 3, characterized in that, The upper end of the limiting plate (91) is arc-shaped, and the inner wall of the limiting plate (91) is fixedly provided with anti-slip strips (911). Springs (93) are symmetrically fixed in the grooves (92). One end of the spring (93) is fixedly connected to the inner wall of the groove (92), and the other end is fixedly connected to the side wall of the limiting plate (91).

5. The crawler crane rapid transfer device according to claim 1, characterized in that, The lifting tray (6) is in the shape of a hollow mesh, and a first guide pin (61) is fixedly installed at the center of each fixed frame (9) on the lifting tray (6).

6. The crawler crane rapid transfer device according to claim 1, characterized in that, The counterweight (7) has a positioning groove at the bottom center, the first guide pin (61) is inserted into the positioning groove, and the second guide pin (71) is fixedly installed at the top center of the counterweight (7).

7. The crawler crane rapid transfer device according to claim 1, characterized in that, The lifting tray (6) is symmetrically fixed with mounting cylinders (62) at both ends. The mounting cylinders (62) are provided with pin holes (621). The lifting cylinder A-type connecting frame (5) is symmetrically fixed with pin shafts (4). The two ends of the pin shafts (4) are inserted and fixedly snapped into the pin holes (621) of the two mounting cylinders (62).

8. The crawler crane rapid transfer device according to claim 1, characterized in that, The support base (8) includes a fixed base (81) and a connecting base (82) slidably disposed above the fixed base (81), and the top of the connecting base (82) is fixedly connected to the bottom of the lifting tray (6), and a jack (83) is fixedly disposed inside the fixed base (81).

9. The crawler crane rapid transfer device according to claim 8, characterized in that, A connecting ring (84) is fixedly connected to the bottom of the connecting seat (82). A ring groove (811) is provided on the fixed seat (81). The connecting ring (84) is slidably installed in the ring groove (811), and a limit ring (841) is fixedly connected to the lower end of the outer wall of the connecting ring (84).

10. The crawler crane rapid transfer device according to claim 1, characterized in that, The fixed plate (63) is provided with a sliding groove (631). An electromagnetic plate (632) is symmetrically fixed on the inner wall of one end of the sliding groove (631). A ball bearing (633) is symmetrically rotatably arranged on the inner wall of the other end of the sliding groove (631). A guide wheel plate is symmetrically fixed on the top of the transport vehicle and is slidably arranged in the sliding groove (631).

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