WO2008131638A1

WO2008131638A1 - Combined multifunctional crane and hoisting device

Info

Publication number: WO2008131638A1
Application number: PCT/CN2008/000527
Authority: WO
Inventors: Rongsheng Li
Original assignee: Rongsheng Li
Priority date: 2007-04-25
Filing date: 2008-03-17
Publication date: 2008-11-06
Also published as: CN101049891A

Abstract

A combined multifunctional crane has a hoisting device (1) for hoisting heavy objects and an undercarriage (2) for shipping the hoisting device (1). The hoisting device (1) has a hoisting machine Ia) with a power system and a hoisting base (10) for supporting the hoisting machine (Ia). The hoisting base (10) is detachably connected with the undercarriage (2). The combined crane has two operating states: a combined operating state and a detached operating state. When the combined crane s in the combined operating state, the hoisting base (10) is supported on the undercarriage (2) and the combined crane can freely be moved. When the combined crane is in the detached operating state, the hoisting base (10) and the undercarriage (2) are detached and the hoisting base (10) is supported on the ground. The hoisting device (1) and the undercarriage (2) of the combined crane can be used detachably or in a combined type. The device availability of the crane is high and the production cost and the use-cost of the crane are lower. A hoisting device (1) is used for said combined crane.

Description

Combined crane and lifting device

The invention relates to a lifting device for a crane and a crane. Background technique

With the development of the national economy, some large-scale engineering constructions, such as petroleum, chemical, energy, or municipal construction, have been rapidly developed. The construction of these fields often requires the lifting and transportation of heavy goods or equipment, which has promoted The development of the heavy equipment not only requires the lifting weight of the lifting device to be high, but also requires the lifting device to have strong maneuverability, good economic efficiency, and high equipment utilization. Although the current truck crane has better maneuverability, the lifting weight is small and the scope of use is limited. However, the crawler crane has heavy weight, but the crawler crane has the weight, slow speed, difficult operation, and easy damage to the road surface. Disadvantages. And since the current crawler type and tire type cranes are integrally connected by the lifting device and the traveling device, the crane has to have a special automobile chassis or a crawler chassis to match the crane, but in the crane When there is no lifting task, the crane's running device (ie the chassis) is left idle, resulting in low utilization of the equipment. Moreover, large crawler cranes need to be removed from the track during the transition and need to be transported by another transport vehicle. When the work is reached, the track is mounted on the chassis, which is time consuming and costly. Summary of the invention

The technical problem to be solved by the present invention is to provide a combined crane. The lifting device and the traveling device of the combined crane can be used separately or in combination, and the equipment utilization rate is high, the production cost and the use cost are low.

The present invention also provides a lifting apparatus that can be used alone for lifting cargo or for use with a crane running device.

In order to achieve the above object, the technical solution adopted by the present invention is:

A combined crane includes a lifting device for lifting a heavy object, a traveling device for loading a lifting device, the lifting device includes a lifting mechanism having a power system, and a lifting base for supporting the lifting mechanism, lifting The movable connection between the base and the running device has two working states. When the combined crane is in the combined working state, the lifting base is supported on the traveling device, and the combined crane can move freely; when the combined crane Lifting base and row when in split working state The walking device is separated and the lifting base is supported on the ground.

The traveling device includes a carrier for carrying the lifting device, the lifting base is detachably coupled to the carrier, and the height of at least one of the lifting base and the carrier is adjustable.

A preferred embodiment of the lifting base is that it includes a plurality of legs and a lifting platform supported by a plurality of legs. The lifting mechanism is disposed on the lifting platform. When the combined crane is in the combined working state, the traveling device passes between the plurality of legs, and at least part of the carrier is located below the lifting platform, and the lifting platform is pressed against the carrier Upper, the legs are suspended; when the combined crane is in the split working state, the lifting platform is separated from the carrier and the legs are grounded.

The legs can be telescoped or folded in the vertical direction. The leg includes a telescopic column that can be telescoped in a vertical direction, and a horizontal strut that has a one end portion that is perpendicularly fixedly connected to an upper end portion of the telescopic column, and the other end of the horizontal strut is slidably disposed on the lifting platform in a horizontal direction. When the combined crane is in the combined working state, the horizontal strut is contracted in the lifting platform; when the combined crane is in the split working state, the horizontal strut extends out of the lifting platform, and the horizontal strut is at least partially located in the lifting The outside of the platform.

The horizontal struts are slidable in one or both of the width or length directions of the hoisting platform.

Another preferred embodiment of the above-described lifting base is that it comprises a bottom plate recessed downwardly, a connecting seat on opposite sides of the bottom plate and for connecting the above-mentioned carrier. The lifting mechanism is disposed on the bottom plate. When the combined lifting machine is in the combined working state, each of the connecting seats is respectively connected with one or more walking devices, and the bottom plate is suspended, and the walking devices are disposed in the same direction; When the crane is in the split working state, the bottom plate is supported on the ground, and the traveling device is separated from the connecting seat.

A connecting platform is connected to an upper portion of each connecting seat, and a side of the connecting platform remote from the connecting seat is detachably connected to the carrier. The connecting platform is rotatably connected to the connecting seat. The hoist base also includes a second locking mechanism disposed between the attachment platform and the connector for relatively securing the attachment platform and the connector.

The lifting mechanism of the present invention comprises a slewing bearing connecting seat provided on the lifting base, a slewing bearing rotatably connected with the slewing bearing connecting seat, a turntable provided on the slewing bearing, a cab and a boom provided on the turntable, and a setting A wire rope on the boom, a hook for lifting the cargo connected to one end of the boom, and a balance weight disposed on the turntable for balancing the lifting device.

The height of the carrier is adjustable. The traveling device is any one of a hydraulic power flatbed, a hydraulic full trailer, a hydraulic semi-trailer, and a truck. The combination crane further includes a first locking mechanism disposed between the lifting base and the traveling device, and when the combined crane is in the combined working state, the first locking mechanism is in a locked state, between the lifting base and the running device Relatively fixed; when the combined crane is in the split working state, the first locking mechanism is in an unlocked state, and the lifting base is separable from the running device.

The first locking mechanism includes a first support fixedly disposed on the lifting base, a second support disposed on the traveling device, and a pull rod connected to the first support at one end, and the other end and the second branch of the pull rod The seat is detachably connected.

A lifting apparatus for a combined crane includes a lifting mechanism having a power system, a lifting base for supporting the lifting mechanism, and the lifting base is detachably coupled to the traveling device of the crane.

A preferred embodiment of the hoist base is: The hoist base includes a plurality of legs and a hoisting platform supported by a plurality of legs, the hoisting mechanism being disposed on the hoisting platform. The legs can be telescoped or folded in the vertical direction.

The leg includes a telescopic column that can be telescoped in a vertical direction, and a horizontal strut that has a one end portion fixedly connected to the upper end of the telescopic column, and the other end of the horizontal strut is slidably disposed in the horizontal direction on the lifting on the platform.

Another preferred embodiment of the hoisting base is that it includes a downwardly recessed bottom plate, a connecting seat on opposite sides of the bottom plate for connecting the traveling device, and a lifting mechanism disposed on the bottom plate.

At least one connecting platform is connected to an upper portion of each of the connecting seats, and an outer side of the connecting platform is detachably connected to the traveling device.

The connecting platform is rotatably connected to the connecting seat. The hoist base further includes a second locking mechanism disposed between the attachment platform and the connector for relatively securing the attachment platform and the connector.

At least one set of hydraulic lifting legs is fixedly disposed on the front side and the rear side of the bottom plate, respectively.

Due to the use of the above technical solutions, the present invention has the following advantages over the prior art - the lifting device comprises a lifting mechanism having a power system and a lifting base for supporting the lifting mechanism, the lifting base being detachably connected to the running device, The lifting device can be used alone to lift heavy objects, and can also be used in combination with the running device. When only lifting the heavy objects or when idle, the traveling device is separated from the lifting device for other purposes, the equipment The utilization rate is high; since the traveling device and the lifting device that make up the crane do not need to be strictly matched, the production cost and the use cost of the combined crane are low. DRAWINGS

1 is a front elevational view showing the lifting apparatus of Embodiment 1; Figure 2 is a left side view of the lifting apparatus of Embodiment 1;

Figure 3 is a front elevational view showing the lifting device of Embodiment 2;

4 is a top plan view of the lifting base of Embodiment 2;

Figure 5 is a front elevational view showing the traveling device of Embodiment 3;

6 is a schematic view showing the combined crane of the third embodiment in a combined working state; FIG. 7 is a schematic structural view of the locking mechanism of the third embodiment;

Figure 8 is a schematic view showing the combined crane of Embodiment 4 in a combined working state;

1, lifting device; la, lifting mechanism; 10, lifting base; 11, slewing bearing joint; 12, slewing bearing; 13, turntable; 14, cab; 15, boom; 16, wire rope; 18; balance weight; 100, lifting platform; 101, legs; 1010, telescopic column; 1011, horizontal strut; 105, bottom plate; 106, connecting seat; 107, connecting platform; 109, hydraulic lifting leg; 2, walking device; 3, locking mechanism; 20, carrier; 21, suspension; 22, drive axle; 23, power module; 24, braking system; 25, driven bridge; 26, hydraulic piping system; Driving assembly; 28, electrical system; 3, the first locking mechanism; 30, the first seat; 31, the second seat; 32, drawbar. detailed description

The present invention will be described below with reference to the accompanying drawings and specific embodiments: Embodiment 1

As shown in Figs. 1 and 2, the lifting apparatus 1 according to this embodiment mainly includes a lifting mechanism la for performing a lifting task, and a lifting base 10 for supporting the lifting mechanism la.

The lifting mechanism 1a includes a slewing bearing connector 11, a slewing ring 12 rotatably coupled to the slewing ring connector 11, a turret 13 disposed on the slewing ring 12, a cab 14 and a boom 15 disposed on the turret 13, A wire rope 16 disposed on the boom 15, a hook 17 for lifting the cargo connected to one end of the boom 16, and a balance weight 18 disposed on the turntable 13 for balancing the lifting device 1 are provided.

The lifting base 10 includes a lifting platform 100, a pair of legs 101 disposed on the front side and the rear side of the lifting platform 100, and the slewing bearing connecting seat 11 of the lifting mechanism la is disposed on the lifting platform 100, and the lifting mechanism la can Rotate around the axis of the slewing ring 12. Each leg 101 is composed of a horizontal strut 1011 and a telescopic column 1010 extending in a vertical direction. The telescopic column 1010 is provided with a hydraulic lifting mechanism. When the lifting platform 100 is supported on the ground by the leg 101, the lifting platform 100 The height is adjustable with the expansion and contraction of the telescopic column 1010.

One end portion of the horizontal stay 1011 is fixedly connected to the upper end portion of the telescopic column 1010, and the other end portion thereof is inserted into the lifting platform 100 and slidable along the width direction of the lifting platform 100. When the horizontal stay 1011 slides to the outermost side of the lifting platform 100, the support of the lifting mechanism la is preferably performed by the leg 101, and the anti-overturning stability of the lifting device 1 is improved.

A space is formed between each leg 101, and the space can be enlarged as the leg 101 is extended, and the traveling device for consignment can be driven into the space, so that when the lifting platform 100 descends or the traveling device rises, The weight device 1 is driven by the driving device. The lifting device can be used in combination with a combination crane or a running device, or it can be used alone to lift heavy objects. Example 2:

As shown in Figs. 3 to 4, the lifting apparatus 1 according to this embodiment mainly includes a lifting mechanism la, and a lifting base 10 for supporting the lifting mechanism l a.

The setting of the lifting mechanism la is the same as in the first embodiment. The hoist base 10 of the present embodiment includes a bottom plate 105 that is recessed downward, and a joint 106 that is located at opposite sides of the bottom plate 105 and that is used to connect the traveling device. A slewing bearing joint 11 is provided on the bottom plate 105.

A connecting platform 107 is connected to the connecting seat 106 on each side by a hinge, and the outer side of the connecting platform 107 is detachably connected to the traveling traveling device. After the two traveling devices arranged in the same direction are respectively connected with the connecting platforms 107 on the respective sides, the entire lifting device 1 can be raised by the ascending of the traveling device, and the lifting device 1 can be freely transported under the traveling device. mobile.

A plurality of connecting platforms 107 may also be hingedly connected to the connecting seats 106 on each side, so that when each of the connecting platforms 107 is connected with a traveling device, the power is stronger and the lifting device 1 moves faster.

The lifting device 1 further includes a second locking mechanism disposed between the connecting base 106 and the connecting platform 107 for relatively fixing the connecting base 106 and the connecting platform 107, so that when the connecting platform 107 is fixedly connected, the lifting device 1 Various sports can be carried out under the driving of the walking device. Example 3:

As shown in FIGS. 5 to 7, a combined crane includes a lifting device 1, a traveling device 2, and a first locking mechanism 3. The setting of the lifting device 1 is the same as that of the first embodiment.

The traveling device 2 includes a carrier 20 whose height is adjustable. The traveling device 2 is a hydraulic power slab having a suspension 21, a drive axle 22, a driven bridge, a first cab 24, a power module 25, a brake system 26, a hydraulic piping system, and an electrical system. Hydraulic power flatbeds are hydraulically driven, hydraulically lifted, and hydraulically leveled. Drive, steering and averaging are controlled by computer. Steering modes are conventional steering, in-situ steering, traverse, and multiple modes at a certain angle. The traveling device 2 can also be other devices having a height-adjustable carrier, such as a hydraulic semi-trailer, a hydraulic trailer, and an ordinary truck.

The first locking mechanism 3 is disposed between the lifting platform 100 and the carrier 20 of the traveling device 2, and includes a first support 30 fixedly disposed on the lifting platform 100 and a second support disposed on the carrier 20. 31. A pull rod 32 connected at one end to the first support 30. The other end of the pull rod 32 is detachably connected to the second support 31. For example, the pull rod 32 has a thread, and the nut is fixed to the second support by a nut. 31 on or off from the second stand 31.

The combined crane has a combined working state, that is, a combined state, and the lifting device 1 is supported by the traveling device. 2 and performs various modes of movement under the driving of the traveling device 2; it also has a second working state, that is, is used alone. State, at this time, the lifting device 1 is fixed at a certain position to perform a lifting task or idle, and the traveling device 2 is separated from the lifting device 1 for transportation or use.

The combination and separation process of the lifting device 1 and the running device 2 is as follows:

When combined, by adjusting the length of the telescopic column 1010 to adjust the size of the space or adjusting the height of the carrier 20, the traveling device 2 can be driven into a suitable position in the space, and then the carrier 20 can be raised or the telescopic column 1010 can be shortened. Then, the carrier 20 lifts the lifting platform 100 or the lifting platform 100 is lowered into contact with the carrier 20 and supported by the carrier 20. At this time, the first locking mechanism 3 is adjusted to the locked state to ensure the relative fixation between the lifting platform 100 and the carrier 20, and the combination of the lifting device 1 and the running device 2 is completed.

When disengaging, after the locking of the first locking mechanism 3 is released, the hydraulically driven telescopic column 1010 is extended or lowered to the download base 20, so that the lower end portion of the telescopic column 1010 is in contact with the ground and plays a supporting role. At this time, the traveling device 2 can be It is taken out of the space below the lifting platform 100 for use as it.

As described above, the working state of the combined crane can be switched according to the actual application requirements, and the utilization rate of the equipment is high; and the switching operation is simple and convenient, and the use cost is greatly reduced. Walking device 2 There is no strict supporting restriction between the lifting device 1 and the lifting cost. Example 4:

As shown in Fig. 8, the combined crane of this embodiment is mainly composed of a lifting device 1 and two traveling devices 2.

The lifting device 1 is set as in the second embodiment. The traveling device 2 is a hydraulic power flatbed, and its structure is the same as that of the traveling device of the third embodiment.

When combined, the two traveling devices 2 respectively drive to the lower side of the connecting platform 107 on each side, and connect the carrier 20 with the side of the connecting platform 107 away from the connecting seat 106, the carrier 20 is raised, and the connecting platform 107 is topped. As a result, the traveling device 2 on both sides lifts the lifting device 1 and the assembly is completed. The combined crane is rotatably connected to the connecting platform 107 by the connecting seat 106. When the traveling device 2 is turned, the lifting device is fixed; in order to enable the lifting device 1 to follow the running device 2 for various modes of movement, A second locking mechanism (not shown) is disposed between the connecting base 106 and the connecting platform 107. When the locking mechanism is locked, the connecting platform 107 and the connecting base 106 are relatively fixed; otherwise, the connecting platform 107' is opposite to the connecting base. It can be rotated.

Traveling apparatus used in this embodiment may be a semi-trailer hydraulic, hydraulic, etc. is highly Trailer ^|: other base running gear carrier tone.

In summary, the lifting device of the present invention can be used alone to play the role of lifting heavy objects; the traveling device can be driven under the lifting base to make them use together, the utilization rate of the device is low, and the setting is simple. Low cost and good maneuverability.

Claims

Rights request

A combined crane comprising a lifting device (1) for lifting a heavy object, a running device (2) for loading said lifting device (1), characterized in that: said lifting The device (1) comprises a lifting mechanism (la) having a power system and a lifting base for supporting the lifting mechanism (la)

(10), the lifting base (10) is movably connected with the traveling device (2), the combined crane has two working states, when the combined crane is in a combined working state The lifting base (10) is supported on the traveling device (2), the combined crane is freely movable; when the combined crane is in a split working state, the The heavy base (10) is separated from the running device (2), and the lifting base (10) is supported on the ground.

2. A combined crane according to claim 1, wherein: said running device (2) comprises a carrier (20) for carrying said lifting device (1), said The lifting base (10) is detachably coupled to the carrier (20), and the height of at least one of the lifting base (10) and the carrier (20) is adjustable.

3. A combined crane according to claim 2, characterized in that: said lifting base (10) comprises a plurality of legs (101) and is supported by said plurality of legs (101) Lifting platform

(100), the lifting mechanism (1) is disposed on the lifting platform (100), when the combined crane is in a combined working state, the traveling device (2) is in the Passing between a plurality of legs (101), and at least a portion of said carrier (20) is located below said lifting platform (100), said lifting platform (100) being pressed against said On the carrier (20), the leg (101) is suspended; when the combined crane is in a split working state, the lifting platform (100) is opposite to the carrier (20) Separated, the legs (101) are grounded.

4. A combined crane according to claim 3, characterized in that said legs (101) are telescopic or foldable in the vertical direction.

5. A combined crane according to claim 4, wherein said leg (101) comprises a telescopic column (1010) telescopically extendable in a vertical direction and an end portion and said telescopic column ( 1010) The upper end portion is vertically fixedly connected to the horizontal strut (1011), and the other end portion of the horizontal strut (1011) is slidably disposed on the lifting platform (100) in a horizontal direction; When the combined crane is in a combined working state, the horizontal strut (1011) is contracted in the lifting platform (100), when the combined crane is in a split working state, Horizontal strut (1011) The lifting platform (100) is described, and the horizontal strut (1011) is at least partially located outside the lifting platform (100).

6. A combined crane according to claim 5, characterized in that: said horizontal strut (1011) is along one or both of the width or length of said lifting platform (100) Slide in one direction.

7. A combined crane according to claim 2, wherein: said lifting base (10) comprises a downwardly recessed bottom plate (105) on opposite sides of said bottom plate (105) And a connecting seat (106) for connecting the carrier (20), the lifting mechanism (la) is disposed on the bottom plate (105), when the combined crane is in a combined working state, Each of the connecting seats (106) is respectively connected with one or more running devices (2), and the bottom plate (105) is suspended, and the walking devices (2) are disposed in the same direction; when the combination is When the crane is in the split working state, the bottom plate (105) is supported on the ground, and the traveling device (2) is disengaged from the connecting seat (106:).

8. A combined crane according to claim 7, wherein: the upper portion of each of the connecting seats (106) is connected with a connecting platform (107), and the connecting platform (107) is remote from the One side of the connector (106) is detachably coupled to the carrier (20).

9. A combined crane according to claim 8, wherein: said connecting platform (107) is rotatably coupled to said connecting seat (106).

10. A combined crane according to claim 9, wherein: said lifting base (10) further comprises a connecting platform (107) and said connecting seat (106) A second locking mechanism for relatively fixing the connecting platform (107) to the connecting seat (106).

11. A combined crane according to any one of claims 1 to 10, characterized in that the lifting mechanism (la) comprises a slewing bearing connection provided on the lifting base (10) a seat (11), a slewing ring (12) rotatably connected to the slewing bearing joint (11), a turntable (13) provided on the slewing ring (12), and a turntable ( 13) The upper cab (14) and the boom (15), the wire rope (16) provided on the boom (15), and the end of the boom (16) are connected for hanging A hook (17) for lifting the cargo is provided on the turntable (13) for balancing the balance weight (18) of the lifting device (1).

12. A combined crane according to claim 1 wherein: said carrier The height of (20) is adjustable.

A combination crane according to claim 12, wherein: said traveling device (2) is any one of a hydraulic power flatbed, a hydraulic full trailer, a hydraulic semi-trailer and a truck.

14. A combined crane according to claim 1 or 2, wherein: said combination crane further comprises a lifting base (10) and said traveling device (2) a first locking mechanism (3), when the combined crane is in a combined working state, the first locking mechanism (3) is in a locked state, the lifting base (10) and the The traveling device (2) is relatively fixed; when the combined crane is in the split working state, the first locking mechanism (3) is in an unlocked state, and the lifting base (10) is The walking device (2) can be separated.

15. A combined crane according to claim 14, wherein: said first locking mechanism (3) comprises a first seat (30) fixedly disposed on said lifting base (10) a second support (31) disposed on the traveling device (2), a pull rod (32) having an end portion connected to the first support (30), the pull rod (32) The other end is detachably connected to the second seat (31).

16. A lifting device (1) for a combined crane, comprising a lifting mechanism (la) having a power system, characterized in that: said lifting device (1) further comprises means for supporting said lifting mechanism

(la) The lifting base (10), the lifting base (10) is detachably connected to the crane's running device (2).

17. A lifting apparatus according to claim 16, wherein: said lifting base (10) comprises a plurality of legs (101) and is supported by said plurality of legs (101) The lifting platform (100), the lifting mechanism (la) is disposed on the lifting platform (100). ―

18. A lifting apparatus according to claim 17, wherein said legs (101) are telescopic or foldable in a vertical direction.

19. A lifting apparatus according to claim 18, wherein said leg (101) comprises a telescopic column (1010) telescopically extendable in a vertical direction and an end portion and said telescopic column ( The upper end of the 1010) is vertically fixedly connected to the horizontal strut (1011), and the other end of the horizontal strut (1011) is slidably disposed on the lifting platform (100) in the horizontal direction. 20. A lifting apparatus according to claim 16, wherein: said lifting base (10) comprises a downwardly recessed bottom plate (105) on opposite sides of said bottom plate (105) And a connection seat (106) for connecting the traveling device (2), wherein the lifting mechanism (la) is disposed on the bottom plate

(105) Upper.

21. A lifting apparatus according to claim 20, wherein: each of said connecting seats

The upper portion of the (106) is connected to at least one connecting platform (107), and the outer side of the connecting platform (107) is detachably coupled to the traveling device (2).

22. A lifting apparatus according to claim 21, wherein: said connecting platform

(107) is rotatably coupled to the connector (106).

23. A lifting apparatus according to claim 22, wherein: said lifting base (10) further comprises: said connecting platform (107) and said connecting seat (106) A second locking mechanism for relatively fixing the connecting platform (107) to the connecting seat (106).

A lifting apparatus according to claim 20, characterized in that the front side and the rear side of said bottom plate (1.05) are fixedly provided with at least one set of hydraulic lifting legs (109).