CN218520957U - Back folding davit for lifting crane - Google Patents

Abstract

The utility model provides a crane is with back folding davit, crane is the crawler crane, including davit and last davit down, lower davit is rotatable to be installed on walking chassis, and the top fixedly connected with link of davit down goes up the rotatable installation of davit on the link, and it has hydraulic cylinder one to splice on the link, and hydraulic cylinder one's output is articulated with last davit, and hydraulic cylinder one can stimulate the davit and inwards fold or outwards rotate, and it has hydraulic cylinder two to articulate on the walking chassis, and hydraulic cylinder two's output is articulated with lower davit. The utility model discloses an go up the davit and can inwards fold or outwards rotate through hydraulic cylinder one, hydraulic cylinder two can stimulate down the davit and inwards fold or outwards rotate, and then reduce the space that occupies, be convenient for install and use in mountain area or the limited region of area, and more safe convenient, equipment transportation area of occupation is half a little, and structural design is simple reasonable, and convenient to use is swift, has very strong practicality.

Description

Back folding davit for lifting crane

Technical Field

The utility model relates to a wind-powered electricity generation hoist and mount technical field specifically is a lifting crane is with back folding davit.

Background

The crawler crane is a crawler crane for short, and is a crane with a lower chassis which is a crawler traveling mechanism and travels by a crawler. The lifting weight is large, and the lifting device can lift and walk. Has stronger hoisting capacity, is suitable for large-scale factories and works in factories. The crawler crane can be divided into several functions of crawler walking, turning disc, lifting and amplitude changing according to the operation structure, the crawler crane has good field operation performance, exceeds the truck crane, and the main dangerous factors influencing the safety of the crawler crane are the stability of the foundation, whether overload or sudden gust occurs and the like.

Present crawler crane is when equipment or transportation, and area can be very big, but wind power equipment often sets up in the mountain area, and when mountain area installation transportation, the space is limited, often can meet the not big enough condition of transportation equipment area, just because last davit can't fold backward, and occupation length overlength is waited for to improve urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a folding davit in back for crane, the space that occupies during the installation is little, is applicable to mountain area.

To achieve the above objective, the present invention provides the following technical solutions: the rear folding suspension arm for the crane is a crawler crane and comprises a lower suspension arm and an upper suspension arm, wherein the lower suspension arm is rotatably installed on a walking chassis, the top of the lower suspension arm is fixedly connected with a connecting frame, the upper suspension arm is rotatably installed on the connecting frame, a first hydraulic cylinder is connected onto the connecting frame in an intersecting mode, the output end of the first hydraulic cylinder is hinged to the upper suspension arm, the first hydraulic cylinder can pull the upper suspension arm to be folded inwards or rotated outwards, a second hydraulic cylinder is hinged to the walking chassis, and the output end of the second hydraulic cylinder is hinged to the lower suspension arm.

Further, the utility model discloses in, still include swing arm one and swing arm two, swing arm one and two rotatable installations in the link of swing arm, it has hydraulic cylinder three to articulate on the link, hydraulic cylinder three's output is articulated with swing arm one.

Further, be provided with the portal on the walking chassis, all be provided with on portal, swing arm one, swing arm two and the last davit and become the width of cloth assembly pulley, become and become to be provided with wire rope one and wire rope two on the width of cloth assembly pulley, be provided with the hoist engine that the drive becomes the width of cloth assembly pulley on the walking chassis, the hoist engine passes through the hydraulic motor drive action, controls receiving and releasing of wire rope one and wire rope two, becomes the width of cloth assembly through the difference and realizes rising the realization that will, become width of cloth and folding davit action.

Further, the utility model discloses in, the tip of going up the davit is provided with the goose head subassembly, goose head subassembly angle can carry out angle modulation through hydraulic cylinder four, the bottom of goose head subassembly is provided with and plays to rise wire rope.

Furthermore, the utility model discloses in, it prevents wind anti-overturning protector to be provided with on the walking chassis.

Furthermore, the utility model discloses in, the weight box is still installed on back walking chassis, be provided with the balancing weight in the weight box.

The beneficial effects are that the technical scheme of this application possesses following technological effect:

1. the utility model discloses an go up the davit and can inwards fold or the external rotation through hydraulic cylinder one, and then reduce the space that occupies, be convenient for install and use in mountain area or the limited region of area, it is more safe convenient, equipment transportation area occupation is half little, structural design is simple reasonable, and convenient to use is swift, has very strong practicality.

2. The distance of the pull arm is halved, the pulling force is halved, the counterweight is halved, the manufacturing cost is reduced, the transportation cost is reduced, the installation cost is also low, and the device is convenient, rapid and safe.

It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments in accordance with the teachings of the present invention.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic diagram of the inward folding of the upper boom of the present invention.

In the figures, the meaning of the reference numerals is as follows: 1. a lower suspension arm; 2. a connecting frame; 3. an upper suspension arm; 4. a first hydraulic oil cylinder; 5. a first swing arm; 6. a hydraulic oil cylinder III; 7. a second swing arm; 8. a walking chassis; 9. a winch; 10. a first steel wire rope; 11. a second steel wire rope; 12. a goose head assembly; 13. a hydraulic oil cylinder IV; 14. hoisting a steel wire rope; 15. a second hydraulic oil cylinder; 16. a wind-proof anti-turnover protector; 17. a weight box.

Detailed Description

For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings. In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily defined to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

Referring to fig. 1-2, a rear folding boom for a crane, the crane is a crawler crane and includes a lower boom 1 and an upper boom 3, the lower boom 1 is rotatably mounted on a walking chassis 8, the walking chassis of this embodiment includes a main body, a crawler and a crawler frame, a connecting frame 2 is fixedly connected to the top of the lower boom 1, the upper boom 3 is rotatably mounted on the connecting frame 2, a first hydraulic cylinder 4 is connected to the connecting frame 2, an output end of the first hydraulic cylinder 4 is hinged to the upper boom 3, the first hydraulic cylinder 4 can pull the upper boom 3 to fold inward or rotate outward, a second hydraulic cylinder 15 is hinged to the walking chassis 8, an output end of the second hydraulic cylinder 15 is hinged to the lower boom 1, and the second hydraulic cylinder 15 can pull the lower boom 1 to fold inward or rotate outward. When using, the utility model discloses an go up davit 3 through hydraulic cylinder 4 can inwards fold or outside rotatory, and then reduce the space that occupies, be convenient for install and use in mountain area or the limited region of area, more safe convenient, equipment transportation area occupied is half little, structural design is simple reasonable, and convenient to use is swift, has very strong practicality.

In this embodiment, still include swing arm one 5 and swing arm two 7, swing arm one 5 and swing arm two 7 are rotatable installs at link 2, and it has three hydraulic cylinder 6 to articulate on link 2, and hydraulic cylinder three 6's output is articulated with swing arm one 5, and hydraulic cylinder three 6 can stimulate swing arm one 5 and inwards fold or outwards rotate, and swing arm one 5 and swing arm two 7 can be along with last davit 3 invagination, reach the whole mesh that reduces occupation space.

In this embodiment, a gantry is arranged on the traveling chassis 8, amplitude-variable pulley blocks are arranged on the gantry, the first swing arm 5, the second swing arm 7 and the upper boom 3, a first steel wire rope 10 and a second steel wire rope 11 are arranged on the amplitude-variable pulley blocks, a winch 9 for driving the amplitude-variable pulley blocks is arranged on the traveling chassis 8, the winch 9 is driven to operate through a hydraulic motor, retraction and release of the first steel wire rope 10 and the second steel wire rope 11 are controlled, and lifting, amplitude-variable and folding boom operation are realized through different amplitude-variable pulley blocks.

In this embodiment, the tip of going up davit 3 is provided with goose head subassembly 12, goose head subassembly 12 angle can carry out the angle modulation through hydraulic cylinder four 13, the bottom of goose head subassembly 12 is provided with plays to rise wire rope 14, if hoist and mount wind power equipment, the angle of goose head subassembly 12 needs to be adjusted, open hydraulic cylinder four 13, hydraulic cylinder four 13 drives the goose head arm rotatory, can adjust the angle of goose head subassembly, avoid wind power equipment to touch davit 3, this embodiment hoist and mount are nimble changeable and multi-functional, have very strong adaptability and practicality.

In the embodiment, the traveling chassis 8 is provided with the windproof and anti-overturn protector 16, the windproof and anti-overturn protector 16 is a patent previously applied by the applicant, CN202123245255.9, and the windproof and anti-overturn protector for the crawler crane of the wind power equipment can play a role of preventing toppling, the crawler crane can freely travel when being lifted, the annular track of the device is adjusted up and down, the device can freely travel and resist wind and overturn, the probability of overturning accidents of the lifted wind power equipment is reduced, and any structure of the crawler crane is not damaged.

Further, the utility model discloses in, weight box 17 is still installed on back walking chassis 8, is provided with the balancing weight in the weight box, can place instrument, product debris etc. when weight box 18 transports, reduces the cost of transportation, and in addition when desert hoist and mount, can adorn the sand and increase the counter weight, and on the same way, when marine hoist and mount, can adorn the sea water and increase the counter weight, when mountain region hoist and mount, can adorn the stone and increase the counter weight, can adapt to multiple environment.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means of mature bolt, rivet, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, the control mode is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming of technicians in the field, the control circuit belongs to the common knowledge in the field, and the present application document is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the present application.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims (6)

1. The utility model provides a lifting crane is with folding davit in back, lifting crane is crawler crane, its characterized in that: the lifting device comprises a lower lifting arm (1) and an upper lifting arm (3), wherein the lower lifting arm (1) is rotatably installed on a walking chassis (8), the top of the lower lifting arm (1) is fixedly connected with a connecting frame (2), the upper lifting arm (3) is rotatably installed on the connecting frame (2), a first hydraulic oil cylinder (4) is connected onto the connecting frame (2) in an intersecting manner, the output end of the first hydraulic oil cylinder (4) is hinged to the upper lifting arm (3), the first hydraulic oil cylinder (4) can pull the upper lifting arm (3) to be folded inwards or rotated outwards, a second hydraulic oil cylinder (15) is hinged to the walking chassis (8), and the output end of the second hydraulic oil cylinder (15) is hinged to the lower lifting arm (1).

2. A rear folding boom for a hoisting crane according to claim 1, characterized in that: the hydraulic lifting mechanism is characterized by further comprising a first swing arm (5) and a second swing arm (7), wherein the first swing arm (5) and the second swing arm (7) are rotatably installed on the connecting frame (2), a third hydraulic oil cylinder (6) is hinged to the connecting frame (2), and the output end of the third hydraulic oil cylinder (6) is hinged to the first swing arm (5).

3. A rear folding boom for a hoisting crane according to claim 2, characterized in that: the crane is characterized in that a portal frame is arranged on the walking chassis (8), amplitude-variable pulley blocks are arranged on the portal frame, the first swing arm (5), the second swing arm (7) and the upper suspension arm (3), a first steel wire rope (10) and a second steel wire rope (11) are arranged on the amplitude-variable pulley blocks, a winch (9) for driving the amplitude-variable pulley blocks is arranged on the walking chassis (8), the winch (9) is driven to move through a hydraulic motor to control the first steel wire rope (10) and the second steel wire rope (11) to be retracted and retracted, and the lifting, amplitude-variable and suspension arm folding actions are realized through different amplitude-variable pulley blocks.

4. A rear folding boom for a hoisting crane according to claim 3, characterized in that: the end part of the upper suspension arm (3) is provided with a goose head component (12), the angle of the goose head component (12) can be adjusted through a hydraulic oil cylinder four (13), and the bottom of the goose head component (12) is provided with a lifting steel wire rope (14).

5. A rear folding boom for a hoisting crane according to claim 4, characterized in that: the walking chassis (8) is provided with a windproof and anti-overturning protector (16).

6. A rear folding boom for a hoisting crane according to claim 5, characterized in that: the walking chassis (8) is further provided with a weight box (17), and a balancing weight is arranged in the weight box (17).

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