CN107055367A - The central jack-up system of internally climbing tower crane - Google Patents

Abstract

The central jacking system of the inner climbing tower crane provided by the present invention includes: a jacking cylinder, and interconnected inner climbing joints and inner climbing lower joints, the inner climbing joints are provided with load-bearing beams and climbing beams, and the climbing beams and load-bearing Beam connection; there is a jacking beam in the inner climbing down section, and the jacking beam can move vertically relative to the inner climbing down section; the jacking cylinder is supported between the climbing beam and the jacking beam; The climbing claws protruding from the side, the jacking beam is provided with the climbing claws that can protrude to both sides. The central jacking system of the internal climbing tower crane provided by the present invention does not need to disassemble the jacking system when climbing, and is easy to use and high in working efficiency.

Description

Central jacking system of internal climbing tower crane

technical field

The invention belongs to the technical field of hoisting machinery, in particular to a central jacking system of an internal climbing tower crane.

Background technique

At present, the internal climbing tower crane commonly used in our country is the Potain internal climbing tower crane. The climbing technology of the Potain internal climbing tower crane adopts the frame side roof type, which is characterized in that three sets of bulk internal climbing frames and six heavy load-bearing beams are used to bear the weight of the tower crane, and the hydraulic station and hydraulic cylinder are placed outside the tower body. The tower crane is climbed by side jacking. Every time the tower crane climbs, the bottom set of internal climbing frames and two load-bearing beams must be disassembled, moved to the top floor for reinstallation, welding and flaw detection for safe treatment. At the same time, the hydraulic station and hydraulic cylinder have to be reinstalled on three or four floors for the next side lift. If the operation is smooth, it will take about two days to climb once. In case of trouble in the side jacking, it will only climb once in a few days.

Contents of the invention

Aiming at the defects in the prior art, the present invention provides a central jacking system of an internal climbing tower crane. The central jacking system does not need to be disassembled when the tower crane climbs, which is convenient to use and has high working efficiency.

The central jacking system of the inner climbing tower crane provided by the present invention comprises: a jacking cylinder, and interconnected inner climbing joints and inner climbing lower joints, the inner climbing joints are provided with load-bearing beams and climbing beams, the The climbing beam is connected with the load-bearing beam; the inner climbing section is provided with a jacking beam, and the jacking beam can move vertically relative to the inner climbing section; the jacking cylinder is supported on the Between the climbing beam and the lifting beam; the climbing beam is provided with climbing claws that can extend to both sides, and the jacking beam is also provided with downward claws that can extend to both sides.

According to an embodiment provided by the present invention, the inner climbing down section is provided with a vertical jacking channel, and the jacking beam is slidably arranged in the jacking channel.

According to an embodiment provided by the present invention, the jacking beam is connected to the jacking channel through positioning wheels.

According to an embodiment provided by the present invention, the climbing beam is provided with load-bearing double lugs, and the jacking beam is provided with jacking double lugs, and the two ends of the jacking cylinder are respectively hinged to the corresponding On the double ear plate.

According to an embodiment provided by the present invention, it further includes a first operating platform provided on the inner climbing section.

According to an embodiment provided by the present invention, the first operating platform is provided with a hydraulic oil tank, and the hydraulic oil tank is equipped with a hydraulic pump station, and the hydraulic pump station is connected to the jacking oil cylinder through a high-pressure oil pipe.

According to an embodiment provided by the present invention, it further includes a second operating platform arranged on the inner climbing down section.

According to an embodiment provided by the present invention, the inner climbing base is provided with a third operating platform.

According to an embodiment provided by the present invention, the inner climbing base is provided with telescopic outriggers.

The working principle of the central jacking system of the internal climbing tower crane provided by the present invention is as follows: in the initial state, the upper climbing claws protrude outwards and are stuck on the climbing ribs of the ladder, and the climbing ribs provide support for the central jacking system force to maintain the height of the central jacking system; since the jacking cylinder is connected to the lower end of the climbing beam, when the jacking cylinder shrinks, it can drive the jacking beam at the lower end of the jacking cylinder to move up, and when the jacking beam moves up to the preset position, stretch out the lower climbing claws, and drive the piston rod of the jacking cylinder to move outwards, so that the lower climbing claws are set on the other climbing rib plate of the ladder, so as to provide support through the jacking beam and lift upwards. The inner climbing section is raised, and the inner climbing section is driven to move at the same time, so as to realize the climbing of the tower crane. The central jacking system of the present invention does not need to dismantle the mechanism when climbing, so it is easy to use and has high working efficiency.

The beneficial effects of the present invention are as follows:

1. The central jacking mechanism of the internal climbing tower crane provided by the present invention is all cleverly installed on the internal climbing up section and the internal climbing down section, thereby realizing the mechanization and automation of the new type of internal climbing tower crane.

2. This invention cancels the burden of three sets of internal climbing frames and six load-bearing beams of the original "Potain" internal climbing tower crane. It has a compact structure, beautiful appearance, and can be installed in the elevator shaft. The scope of use of tower climbing machines.

3. The present invention adopts hydraulic central jacking, and when the tower crane climbs, the four corners of the standard joints of the tower body are evenly stressed, which eliminates various hidden dangers of side jacking of the "Potain" inner climbing tower crane.

4. The central jacking mechanism of the inner climbing tower crane provided by the present invention can also be provided with a first operating platform and a second operating platform at the inner climbing up section and the inner climbing down section respectively, so as to ensure the safety of the operator, and the inner climbing base A third operating platform is arranged on the top, wherein, the first operating platform and the second operating platform may be semi-closed structures, and the third operating platform is a fully enclosed structure. Dozens of sets of safety struts and safety pull rods can also be installed on the tower to provide all-round safety protection for climbing personnel.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific embodiments or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 is a schematic structural view of the central jacking system of an internal climbing tower crane provided by an embodiment;

Fig. 2 is the structural schematic diagram of the climbing beam that the climbing claw is set on the climbing rib;

Figure 3 is a structural schematic diagram of the jacking beam.

Explanation of reference signs

1- Inner climbing section

11- load-bearing beam

12-climbing beam

13-Load-bearing double ear plate

14- climbing claw

2- inner climbing section

21-Jacking channel

22-Jacking Beam

221-Positioning wheel

23-Jacking double ear plate

24-Climbing Claw

3- Jacking cylinder

31-cylinder liner

32-piston rod

33-hydraulic oil tank

4- Ladder ribs

detailed description

Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

Referring to Fig. 1 to Fig. 3, in one embodiment, the central jacking system of the inner climbing tower machine provided by the present invention includes: jacking cylinder 3, and interconnected inner climbing section 1 and inner climbing section 2, the inner Climbing section 1 is provided with load-bearing beam 11 and climbing beam 12, and climbing beam 12 is connected with load-bearing beam 11; The jacking cylinder 3 is supported between the climbing beam 12 and the jacking beam 22; the climbing beam 12 is provided with climbing claws 14 that can stretch out to both sides, and the jacking beam 22 is provided with claws that can stretch out to both sides. Climb claw 24 down.

In the initial state, the climbing claw 14 protrudes outwards and is clamped on the climbing rib 4 of the ladder. The climbing rib 4 provides support for the central jacking system and maintains the height of the central jacking system; since the jacking cylinder 3 Connected to the lower end of the climbing beam 12, when the jacking cylinder 3 shrinks, it can drive the jacking beam 22 at the lower end of the jacking cylinder 3 to move upward, and when the jacking beam 22 moves up to the preset position, it will stretch out and climb down. Claw 24, and drive the piston rod 32 of the jacking cylinder 3 to move outward, so that the lower climbing claw 24 is clamped on the other climbing rib plate of the ladder, so that the supporting force is provided by the jacking beam 22, and the inner climbing member is lifted up. The upper section 1 drives the inner climbing lower section 2 to move at the same time to realize the climbing of the tower crane. When the central jacking system of this embodiment climbs, it is not necessary to disassemble the central jacking system, which is convenient to use and high in work efficiency.

In this embodiment, the jacking cylinder 3 includes a cylinder liner 31 and a piston rod 32 , the cylinder liner 31 is connected to the climbing beam 12 , and the piston rod 32 is connected to the jacking beam 22 .

The inner climbing down section 2 is provided with a jacking channel 21 along the vertical direction, and a jacking beam 22 is slidably arranged in the jacking channel 21 . The jacking beam 22 is guided by the jacking channel 21 , so that the jacking beam 22 can slide up and down along the jacking channel 21 .

More specifically, the jacking beam 22 is connected to the jacking channel 21 through the positioning wheels 221 . The horizontal position of the jacking beam 22 is limited by the positioning wheel 221 to prevent the jacking beam 22 from swinging, thereby ensuring the verticality of the jacking cylinder 3 during jacking and preventing the jacking cylinder 3 from tilting, causing potential safety hazards.

More specifically, the climbing beam 12 is provided with a load-bearing double ear plate 13, and the jacking beam 22 is provided with a jacking double ear plate 23, and the two ends of the jacking cylinder 3 are respectively hinged to the corresponding double ear plates through pin shafts. In this embodiment, the jacking cylinder 3 can be rotated relative to the beam through the form of hinge, so as to eliminate the stress concentration phenomenon caused by the inclination of the beam.

More specifically, it also includes a first operating platform for climbing up section 1 provided therein. In this embodiment, the first operating platform is a semi-closed structure made of expanded metal.

More specifically, the first operating platform is provided with a hydraulic oil tank 33, and the hydraulic oil tank 33 is equipped with a hydraulic pump station, which is connected to the jacking cylinder 3 through a high-pressure oil pipe. Start the hydraulic pump station, and the high-pressure oil can enter the jacking cylinder 3 to push the jacking beam 22 down. The climbing claw 24 of jacking beam 22 just passes the jacking force of jacking oil cylinder 3 to the rib plate of climbing ladder. Since the ribs of the ladder are firmly welded to the main beam of the inner climbing frame, and the telescopic outriggers of the main beam are extended into the shear wall to fix them, the inner climbing frame and the ladder cannot go down, but can only generate reaction force to push The internal climbing tower crane climbs upwards. In this embodiment, the internal climbing tower climbs upwards by 800-1000 millimeters, and the climbing claws 14 of the climbing beam 12 can be pressed against the upper rib plate of the climbing ladder to lift and change steps.

More specifically, it also includes a second operating platform arranged inside the climbing down section 2 . In this embodiment, the second operating platform is a semi-closed structure made of expanded metal.

The central jacking system of the internal climbing tower crane provided in this embodiment further includes: an internal climbing base arranged below the internal climbing down section. The inner climbing base is provided with a fully enclosed third operating platform and telescopic outriggers. The inner climbing base is provided with a safety brace and/or a safety pull rod. After the climbing is completed, the operator pulls out the telescopic outriggers of the inner climbing base, inserts the telescopic outriggers into the reserved holes on the shear wall, fixes the base of the inner climbing tower machine, and at the same time fastens the safety struts and safety pull rods. The hoisting operation of the inner climbing tower crane can then be continued.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "inner", "outer", etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be configured in a specific orientation. and operation, and therefore should not be construed as limiting the invention.

In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the invention, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. All of them should be covered by the scope of the claims and description of the present invention.

Claims (10)

1. the central jack-up system of internally climbing tower crane, it is characterised in that including：Jacking cylinder (3) and the interior of interconnection climb up section (1) and it is interior climb down section (2), it is described in climb up section (1) and be provided with spandrel girder (11) and the crossbeam that climbs (12), the crossbeam that climbs (12) It is connected with the spandrel girder (11)；Climbed down in described and jacking cross beam (22) is provided with section (2), the jacking cross beam (22) being capable of phase The interior section (2) that climbs down vertically is moved；The jacking cylinder (3) is supported on climb crossbeam (12) and the top Between liter crossbeam (22)；The crossbeam that climbs (12) is provided with the pawl that swashes (14) that can be stretched out to both sides, the jacking cross beam (22) it is provided with being stretched out to both sides and climbs pawl (24).

2. the central jack-up system of internally climbing tower crane according to claim 1, it is characterised in that climb down section (2) in described and set There is jacking passage (21) vertically, the jacking cross beam (22) is slidably arranged in the jacking passage (21).

3. the central jack-up system of internally climbing tower crane according to claim 2, it is characterised in that the jacking cross beam (22) is led to Locating wheel (221) is crossed to be connected with the jacking passage (21).

4. the central jack-up system of internally climbing tower crane according to claim 1, it is characterised in that the crossbeam that climbs (12) sets There is load-bearing bi-lug plate (13), the jacking cross beam (22) is equipped with jacking bi-lug plate (23), the two ends point of the jacking cylinder (3) Not by hinge in corresponding bi-lug plate.

5. the central jack-up system of internally climbing tower crane according to claim 1, it is characterised in that also including being arranged in described Climb up the first operating platform of section (1).

6. the central jack-up system of internally climbing tower crane according to claim 5, it is characterised in that first operating platform is set Have a hydraulic oil container (33), the hydraulic oil container (33) is provided with hydraulic power unit, the hydraulic power unit by high-pressure oil pipe with it is described Jacking cylinder (3) is connected.

7. the central jack-up system of internally climbing tower crane according to claim 1, it is characterised in that also including being arranged in described Climb down the second operating platform of section (2).

8. the central jack-up system of internally climbing tower crane according to claim 1, it is characterised in that also including being arranged in described Climb down the internal climbing foundation below section.

9. the central jack-up system of internally climbing tower crane according to claim 8, it is characterised in that the internal climbing foundation is provided with the Three operating platforms.

10. the central jack-up system of internally climbing tower crane according to claim 8, it is characterised in that the internal climbing foundation is provided with Telescopic outrigger.