CN216711427U

CN216711427U - Small-sized crane

Info

Publication number: CN216711427U
Application number: CN202122833060.XU
Authority: CN
Inventors: 王培磊
Original assignee: Shandong Zhonglian Hoisting Installation Engineering Co ltd
Current assignee: Shandong Zhonglian Hoisting Installation Engineering Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-06-10
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses a small crane, and belongs to the technical field of cranes. The structure comprises a lifting telescopic arm, a lifting hook arranged on one side of the lifting telescopic arm, a lifting rope connected with the lifting hook, a rotary drum for fixing the lifting rope, a lower support frame, a bolt, a base, an upper support frame, a plurality of reinforcing plates, a lifting platform, a support plate, a lifting telescopic arm and the rotary drum, wherein the bolt is arranged at the side end of the lower support frame, the base is arranged at the lower end of the lower support frame, the upper support frame is fixedly arranged at the upper end of the lower support frame, the lifting platform is arranged on the upper support frame, the support plate is rotatably arranged at the upper end of the lifting platform, the lifting telescopic arm and the rotary drum are both arranged on the support plate, a counterweight plate for placing a counterweight is also arranged at one end of the support plate far away from the lifting hook, a counterweight frame is also arranged in a sliding manner in the frame body of the lower support frame, a plurality of insertion tubes are also arranged at the upper end of the upper support frame, the insertion tubes are uniformly distributed at the periphery of the lifting platform, and a stabilizing component for stabilizing the body is inserted in the insertion tubes, the utility model is small and convenient, the operation and control are simple, and the stability is high.

Description

Small-sized crane

Technical Field

The utility model relates to the technical field of cranes, in particular to a small crane.

Background

The crane is indispensable construction equipment in the building construction field, and domestic hoisting equipment for building construction mainly falls into two types: one is a tower crane and the other is a construction hoist. In some small-size building construction fields, because limited by place, construction period etc. often can't erect tower crane, perhaps use main equipment economic nature poor, the bench cost is high, and the construction elevator erects, removes inconveniently, hardly satisfies the construction requirement, so to small and exquisite light hoisting equipment that stability is high simultaneously that can conveniently shift to small-size building construction, urgent need.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a small-sized crane, which solves the problems of the background art mentioned above.

In order to achieve the purpose, the utility model provides the following technical scheme:

a small-sized crane comprises a lifting telescopic arm, a lifting hook arranged on one side of the lifting telescopic arm, a lifting rope connected with the lifting hook, a rotary drum for fixing the lifting rope, a lower support frame, the side end of the lower support frame is provided with a bolt, the lower end of the lower support frame is provided with a base, the upper end of the lower support frame is fixedly provided with an upper support frame, a plurality of reinforcing plates are arranged in the lower support frame and the upper support frame, the upper supporting frame is provided with a lifting platform which can be lifted, the upper end of the lifting platform is rotatably provided with a supporting plate, the lifting telescopic arm and the rotary drum are both arranged on a support plate, a counterweight plate for placing a counterweight is also arranged at one end of the support plate far away from the lifting hook, still the cunning is equipped with the counter weight frame in the support body of bottom suspension strut, upper bracket upper end still is provided with a plurality of intubate, and the even distribution of a plurality of intubate is equipped with the firm subassembly that is used for firm organism in the intubate in the week of elevating platform.

Adopt above-mentioned technical scheme, through setting up the elevating platform, when the roof operation, can be according to the height adjustment backup pad of different balcony rails, and then the height of adjustment jack-up telescopic boom, improve the flexibility, through setting up counterweight plate and counterweight housing, when carrying out the heavy weight lifting operation, place the counter weight on counterweight plate and counterweight housing, the stability of backup pad and support frame has been strengthened, slide the counterweight housing and set up in the support body of lower carriage, the area occupied of organism has been reduced when out of work, it is convenient to transport, simultaneously through setting up firm subassembly, the complete machine stability when having improved the organism operation, and then the complete machine need not promote self stability through excessively improving self weight when making, so complete machine weight is little, be convenient for transport, can transport the roof of small-size building through the loop wheel machine, convenient transfer, strong stability.

As a further scheme of the utility model: the improved lifting device is characterized in that a pressing plate is arranged at the upper end of the upper supporting frame, an outer barrel is arranged at the upper end of the pressing plate, the lifting platform is arranged in the outer barrel and is in threaded connection with the outer barrel, sliding rods fixed at the lower end of the pressing plate are symmetrically arranged in the upper supporting frame, sliding blocks are arranged on the sliding rods in a sliding mode, a first hydraulic motor is fixed between the sliding blocks, and the output end of the first hydraulic motor penetrates through the pressing plate and is connected with the bottom end of the lifting platform.

Adopt above-mentioned technical scheme, through controlling first hydraulic motor alright with the elevating movement of control elevating platform, through setting up the slide bar, it can only reciprocate to have injectd first hydraulic motor, simple structure, is convenient for control.

As a still further scheme of the utility model: the firm subassembly includes support arm, second pneumatic cylinder and supporting seat, intubate one end is connected with the urceolus, and the intubate lower extreme welds on last support frame body, and support arm one end is inserted and is established on the intubate, and the support arm other end has set firmly the second pneumatic cylinder, and the supporting seat sets firmly the output at the second pneumatic cylinder.

Adopt above-mentioned technical scheme, when lifting by crane the operation, insert the support arm and establish in the intubate, make the supporting seat tightly butt ground through controlling the second pneumatic cylinder, guaranteed the stability of crane support frame and urceolus when lifting by crane the operation, guaranteed the stability of elevating platform, improved the security of whole operation, make it be difficult for empting.

As a still further scheme of the utility model: the counterweight frame is a U-shaped frame, the side frames at two sides of the counterweight frame are arranged in the side frames at two sides of the lower support frame in a sliding mode, one side, far away from the counterweight frame, of the lower support frame is provided with a first hydraulic cylinder, and the output end of the first hydraulic cylinder is connected with the other side frame of the counterweight frame through a shaft pin.

Adopt above-mentioned technical scheme, when carrying out the heavy weight operation, place the stability that the complete machine can't be guaranteed to the counter weight thing on the weight plate, just need control first pneumatic cylinder at this moment and push out the counter weight frame, place the counter weight thing, further guaranteed the stability of organism, through setting up the counter weight frame into the U type, when need not the counter weight, alright in order to slide counter weight frame both sides frame in the lower support frame both sides frame, reduce area, be convenient for remove.

As a still further scheme of the utility model: the lifting platform is characterized in that a rotary support is arranged at the upper end of the lifting platform, an annular rack is arranged on the inner ring of the rotary support, a supporting plate is fixed on the outer ring of the rotary support, a third hydraulic motor is arranged at the upper end of the supporting plate, the output end of the third hydraulic motor penetrates through the supporting plate and is connected with a gear, and the gear is meshed with the rack.

By adopting the technical scheme, the gear rotates along the rack by controlling the third hydraulic motor, so that the rotation of the supporting plate on the lifting platform can be realized, the lifting angle can be changed, the structure is simple, and the control is convenient.

As a still further scheme of the utility model: the upper end of the supporting plate is provided with a second fixing frame connected with the hoisting telescopic arm, the second fixing frame is provided with a pull rope, and one end of the pull rope is connected with one end, far away from the supporting plate, of the counterweight plate.

By adopting the technical scheme, the pull rope connected with the counterweight plate is arranged, so that the stability of the counterweight plate is improved.

Compared with the prior art, the utility model has the beneficial effects that: small and exquisite convenience, control simply, stability is high, and the flexibility is good, is convenient for remove at the construction place.

Drawings

FIG. 1 is a structural view of a small-sized crane;

FIG. 2 is a layout of the insertion tube of the small-sized crane;

FIG. 3 is a front view of the compact crane;

fig. 4 is a structure view of a weight frame of a small crane.

In the figure: 1. a lower support frame; 2. a counterweight frame; 3. an upper support frame; 4. a reinforcing plate; 5. a slider; 6. a first hydraulic motor; 7. a slide bar; 8. inserting a tube; 9. a weight plate; 10. pulling a rope; 11. a support plate; 12. a first fixing frame; 13. a rotating drum; 14. a second hydraulic motor; 15. a lifting rope; 16. a lifting telescopic arm; 17. a hook; 18. a second fixing frame; 19. a third hydraulic motor; 20. a gear; 21. a rack; 22. a slewing bearing; 23. a lifting platform; 24. an outer cylinder; 25. pressing a plate; 26. a first hydraulic cylinder; 27. a base; 28. a support arm; 29. a second hydraulic cylinder; 30. a supporting seat; 31. a bolt; 32. a vehicle body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present embodiment provides a small crane, including a telescopic crane boom 16, a hook 17 disposed on one side of the telescopic crane boom 16, a lifting rope 15 connected to the hook 17, and a drum 13 for fixing the lifting rope 15, where the telescopic crane boom 16, the hook 17, the lifting rope 15, and the drum 13 are all in the prior art and are not described again, and further including a lower support frame 1, a plug 31 is disposed at a side end of the lower support frame 1, a base 27 for preventing slipping is disposed at a lower end of the lower support frame 1, referring to fig. 3, when the crane needs to be transported, the lower support frame 1 is placed on a car body 32 and is connected and fixed to the car body through the plug 31, so as to transport the crane, an upper support frame 3 is fixedly disposed at an upper end of the lower support frame 1, and referring to fig. 1, 2, and 4, a plurality of reinforcing plates 4 are disposed in the lower support frame 1 and the upper support frame 3, the lifting platform 23 capable of lifting is arranged on the upper support frame 3, specifically, a press plate 25 is arranged at the upper end of the upper support frame 3, the press plate 25 is welded on a side frame and a reinforcing plate 4 of the upper support frame 3, the supporting performance of the press plate 25 is improved by the reinforcing plate 4, an outer cylinder 24 is arranged at the upper end of the press plate 25, the lifting platform 23 is arranged in the outer cylinder 24 and is in threaded connection with the outer cylinder 24, slide rods 7 fixed at the lower end of the press plate 25 are symmetrically arranged in the upper support frame 3, slide blocks 5 are arranged on the slide rods 7 in a sliding manner, a first hydraulic motor 6 is fixed between the slide blocks 5, the output end of the first hydraulic motor 6 penetrates through the press plate 25 and is connected with the bottom end of the lifting platform 23, a support plate 11 is rotatably arranged at the upper end of the lifting platform 23, specifically, a rotary support 22 is arranged at the upper end of the lifting platform 23, an annular rack 21 is arranged at the inner ring of the rotary support 22, the support plate 11 is fixed on the outer ring of the rotary support 22, the slewing bearing 22 is a mature technology in the prior art, and is not described again, a third hydraulic motor 19 is arranged at the upper end of the supporting plate 11, an output end of the third hydraulic motor 19 penetrates through the supporting plate 11 and is connected with a gear 20, the gear 20 is engaged with a rack 21, the lifting telescopic arm 16 and the rotary drum 13 are both arranged on the supporting plate 11, a first fixing frame 12 and a second fixing frame 18 for supporting the rotary drum 13 and the lifting telescopic arm 16 are arranged on the supporting plate 11, the rotary drum 13 is driven by a second hydraulic motor 14 arranged on one side of the first fixing frame 12, a counterweight plate 9 for placing a counterweight is further arranged at one end of the supporting plate 11 far away from the lifting hook 17, with reference to fig. 1, a pull rope 10 is arranged on the second fixing frame 18, one end of the pull rope 10 is connected with one end of the counterweight plate 9 far away from the supporting plate 11, and a counterweight frame 2 is further slidably arranged in a frame body of the lower supporting frame 1, specifically, referring to fig. 1 and 4, the weight frame 2 is a U-shaped frame, two side frames of the U-shaped frame are slidably disposed in the side frames at two sides of the lower support frame 1, one side of the lower support frame 1 away from the weight frame 2 is provided with a first hydraulic cylinder 26, an output end of the first hydraulic cylinder 26 is connected to the other side frame of the weight frame 2 through a shaft pin, the upper support frame 3 is further provided with a plurality of insertion tubes 8, the insertion tubes 8 are uniformly distributed around the lifting platform 23, and a stabilizing component for stabilizing the machine body is inserted into the insertion tubes 8, specifically, referring to fig. 1 and 2, the stabilizing component includes a support arm 28, a second hydraulic cylinder 29 and a support seat 30, one end of each insertion tube 8 is connected to the outer cylinder 24, four insertion tubes 8 are uniformly arranged in this embodiment, a lower end of each insertion tube 8 is welded to the support body of the upper support frame 3, one end of the support arm 28 is inserted into the insertion tube 8, and the other end of the support arm 28 is fixedly provided with the second hydraulic cylinder 29, the support base 30 is fixed at the output end of the second hydraulic cylinder 29.

When the crane needs to be transported, the crane is placed on a vehicle body 32 and fixed on the vehicle body 32 through a bolt 31 on a lower support frame 1, after the crane arrives at a specified place, a support arm 28 can be directly inserted into an insertion pipe 8, a second hydraulic cylinder 29 is controlled to enable a support seat 30 to abut against the ground, small-weight hoisting is directly carried out, when roof operation needs to be carried out, the bolt 31 is pulled out, the crane is lifted to the roof by the crane, then the support arm 28 is inserted into the insertion pipe 8 to be stabilized, then a counterweight is placed on a counterweight plate 9, when large-weight operation needs to be carried out, a first hydraulic cylinder 26 is controlled to enable a counterweight frame 2 to slide out, the counterweight is further placed on the counterweight frame 2, the operation stability of the crane is improved, then a lifting platform 23 and a support plate 11 are controlled to adjust the operation height and angle, and finally a crane telescopic arm 16 is controlled to carry out operation.

It should be noted that, the above embodiments are only specific and clear descriptions for technical solutions and technical features of the present application. However, to those skilled in the art, aspects or features that are part of the prior art or common general knowledge are not described in detail in the above embodiments.

In addition, the technical solutions of the present application are not limited to the above-described embodiments, and a person skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined, so that other embodiments understood by a person skilled in the art may be formed.

Claims

1. The utility model provides a small crane, includes flexible arm (16), the lifting hook (17) of setting in flexible arm (16) one side of jack-up, lifting rope (15) be connected with lifting hook (17) and be used for rotary drum (13) of fixed lifting rope (15), its characterized in that still includes under bracing frame (1), under bracing frame (1) side is provided with bolt (31), and under bracing frame (1) lower extreme is provided with base (27), under bracing frame (1) upper end has set firmly upper bracket (3), all is provided with a plurality of gusset plates (4) in under bracing frame (1) and upper bracket (3), be provided with liftable elevating platform (23) on upper bracket (3), elevating platform (23) upper end is rotated and is provided with backup pad (11), flexible arm (16) of jack-up and rotary drum (13) all set up in backup pad (11), backup pad (11) still are provided with counterweight plate (9) that are used for placing the thing keeping away from the one end of lifting hook (17) and are used for placing counterweight plate (9) ) The utility model discloses a support frame, still the cunning is equipped with counter weight frame (2) in the support body of bottom suspension strut (1), top suspension strut (3) upper end still is provided with a plurality of intubate (8), and a plurality of intubate (8) even distribution is inserted in elevating platform (23) week side, and intubate (8) are equipped with the firm subassembly that is used for firm organism.

2. The small-sized crane is characterized in that a pressing plate (25) is arranged at the upper end of the upper supporting frame (3), an outer cylinder (24) is arranged at the upper end of the pressing plate (25), the lifting platform (23) is arranged in the outer cylinder (24) and is in threaded connection with the outer cylinder (24), sliding rods (7) fixed at the lower end of the pressing plate (25) are symmetrically arranged in the upper supporting frame (3), sliding blocks (5) are arranged on the sliding rods (7) in a sliding mode, a first hydraulic motor (6) is fixed between the sliding blocks (5), and the output end of the first hydraulic motor (6) penetrates through the pressing plate (25) and is connected with the bottom end of the lifting platform (23).

3. The small-sized crane as claimed in claim 2, wherein the stabilizing assembly comprises a supporting arm (28), a second hydraulic cylinder (29) and a supporting base (30), one end of the insertion tube (8) is connected with the outer cylinder (24), the lower end of the insertion tube (8) is welded on the frame body of the upper supporting frame (3), one end of the supporting arm (28) is inserted into the insertion tube (8), the other end of the supporting arm (28) is fixedly provided with the second hydraulic cylinder (29), and the supporting base (30) is fixedly arranged at the output end of the second hydraulic cylinder (29).

4. A small-sized crane according to claim 1, characterized in that the counterweight frame (2) is a U-shaped frame, two side frames of the U-shaped frame are slidably arranged in the side frames at two sides of the lower supporting frame (1), a first hydraulic cylinder (26) is arranged at one side of the lower supporting frame (1) far away from the counterweight frame (2), and the output end of the first hydraulic cylinder (26) is connected with the other side frame of the counterweight frame (2) through a shaft pin.

5. The small-sized crane is characterized in that a slewing bearing (22) is arranged at the upper end of the lifting platform (23), an annular rack (21) is arranged on the inner ring of the slewing bearing (22), the supporting plate (11) is fixed on the outer ring of the slewing bearing (22), a third hydraulic motor (19) is arranged at the upper end of the supporting plate (11), the output end of the third hydraulic motor (19) penetrates through the supporting plate (11) and is connected with a gear (20), and the gear (20) is meshed with the rack (21).

6. A small-sized crane according to claim 1, characterized in that the upper end of the supporting plate (11) is provided with a second fixing frame (18) connected with a telescopic lifting arm (16), the second fixing frame (18) is provided with a pull rope (10), and one end of the pull rope (10) is connected with one end of the counterweight plate (9) far away from the supporting plate (11).