Self-elevating tower crane and climbing method

Abstract

The invention belongs to the technical field of tower crane equipment, and discloses a self-elevating tower crane and a climbing method. The self-elevating tower crane comprises a tower crane main body, a climbing frame and a fixed seat, the climbing frame comprises a first climbing section and a second climbing section, the second climbing section is detachably connected to the bottom end of the first climbing section, and the first climbing section and the second climbing section can be detachably connected to the bottom of the tower crane body; the fixed seat is fixedly arranged on a steel structure of a building, the climbing frame is detachably connected to the fixed seat, the fixed seat comprises a jacking mechanism, and the jacking mechanism is configured to drive the climbing frame to move in the vertical direction; the fixed seat can be divided into a first fixed seat and a second fixed seat, the first fixed seat corresponds to the first climbing section, and the second fixed seat corresponds to the second climbing section. The first climbing section and the second climbing section are matched with each other and are alternately connected to the bottom of the tower crane body, then climbing of the tower crane body can be completed, the overall self weight is small, the climbing process is simple and convenient, and the production cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of tower crane equipment, and in particular to a self-elevating tower crane and a climbing method. Background Art

[0002] Tower cranes are widely used in the field of construction. With the development of high-rise buildings, it is necessary to ensure that the height of the tower crane can be increased as the construction plane increases, so as to complete various hoisting operations during the construction process.

[0003] The tower crane structures in the prior art can be divided into three types according to the climbing method: internal climbing type, external climbing type and self-elevating type. Among them, the internal climbing type tower crane is attached to the inside of the elevator shaft or stairwell on each floor of the core tube of the building, and has high requirements on the internal space of the core tube; the external climbing type tower crane is attached to the outer facade of the core tube of the building, and is difficult and dangerous to climb; the self-elevating tower crane has low requirements on the installation environment, and the climbing process is relatively safe. As the building rises, the number of tower sections will continue to increase, and it is heavy and costly. Summary of the invention

[0004] The object of the present invention is to provide a self-elevating tower crane and a climbing method, which have small deadweight, simple and convenient climbing process and low cost.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Self-elevating tower crane, including:

[0007] The tower crane body is configured to complete the lifting operation;

[0008] A climbing frame, comprising at least one first climbing section and at least one second climbing section, wherein the second climbing section is detachably connected to the bottom end of the first climbing section, and the first climbing section and the second climbing section can both be detachably connected to the bottom of the tower crane body;

[0009] A fixing seat, fixedly arranged on the steel structure of the building, the climbing frame is detachably connected to the fixing seat, the fixing seat comprises a lifting mechanism, and the lifting mechanism is configured to drive the climbing frame to move in a vertical direction;

[0010] There are at least two fixing seats, which can be divided into a first fixing seat and a second fixing seat. The first fixing seat corresponds to the first climbing section, and the second fixing seat corresponds to the second climbing section.

[0011] Preferably, the fixing seat further comprises a base plate, the lifting mechanism is fixedly arranged on the base plate, the base plate is provided with a limiting hole penetrating in the vertical direction, and the climbing frame passes through the limiting hole.

[0012] Preferably, the fixing seat further comprises:

[0013] A first limiting plate is fixedly disposed on the base plate and extends in a vertical direction;

[0014] The connecting beam is detachably connected to the climbing frame. The connecting beam can be pressed against the first limiting plate under the action of its own gravity. The lifting mechanism can drive the connecting beam to move upward and separate from the first limiting plate.

[0015] Preferably, two first limiting plates are arranged at intervals in the horizontal direction, and the lifting mechanism is arranged between the two first limiting plates.

[0016] Preferably, two second limit plates are arranged at intervals along the horizontal direction at the bottom of the connecting beam, the second limit plates extend along the vertical direction, and the second limit plates can be attached to the first limit plates.

[0017] Preferably, the lifting mechanism is configured as a hydraulic cylinder.

[0018] Preferably, it further comprises a climbing drive mechanism, the fixed end of the climbing drive mechanism is arranged on the climbing frame, and the climbing drive mechanism is configured to drive the tower crane body to rise relative to the climbing frame.

[0019] Preferably, it further comprises a winch, which is fixedly arranged on the steel structure and is configured to drive the climbing frame to move in a vertical direction.

[0020] Preferably, it further comprises a limit frame, which is fixedly connected to the steel structure, the climbing frame passes through the limit frame, and one limit frame is arranged between two adjacent fixing seats.

[0021] The climbing method, using the self-elevating tower crane, comprises the following steps:

[0022] S1, the jacking mechanism drives the climbing frame to move upward relative to the steel structure;

[0023] S2, the second climbing section is separated from the second fixed seat;

[0024] S3, the second climbing section is separated from the first climbing section;

[0025] S4. Connect the second climbing section between the tower crane body and the first climbing section.

[0026] Beneficial effects of the present invention:

[0027] The climbing frame is connected to the steel structure of the building through a fixed seat, without the need to rely on the space of the core tube of the building, with strong versatility, and indirectly increases the coverage of the tower crane main body operation, shortens the lever arm of the hoisted objects, and thus increases the load capacity of the self-elevating tower crane; the first climbing section and the second climbing section cooperate with each other, and after the climbing frame is driven upward relative to the fixed seat by the jacking mechanism, the second climbing section is first separated from the second fixed seat, and then the second climbing section is separated from the first climbing section, the tower crane main body is separated from the first climbing section, and the tower crane main body is hoisted and raised to a predetermined position, and finally the second climbing section is installed between the first climbing section and the tower crane main body, so that the climbing of the tower crane main body can be completed, the overall dead weight is small, the climbing process is simple and convenient, and the production cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the self-elevating tower crane of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the fixing seat of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the segment of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the winch of the present invention when hoisting the second climbing section.

[0032] In the figure:

[0033] 100. Steel structure;

[0034] 200, core tube;

[0035] 1. Tower crane body;

[0036] 2. Climbing frame; 20. Segment; 201. Pulley; 21. First climbing segment; 22. Second climbing segment; 23. Connector;

[0037] 3. Fixed seat; 31. Lifting mechanism; 32. First fixed seat; 33. Second fixed seat; 34. Base plate; 35. First limit plate; 36. Connecting beam; 361. Second limit plate;

[0038] 4. Winch;

[0039] 5. Limit frame. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar parts or parts having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, it can be a mechanical connection or an electrical connection, it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0044] like Figure 1-Figure 4 As shown, the present invention provides a self-elevating tower crane for building construction. The self-elevating tower crane includes a tower crane body 1, a climbing frame 2 and a fixed seat 3. The tower crane body 1 is configured to complete the hoisting operation; the climbing frame 2 includes at least one first climbing section 21 and at least one second climbing section 22, the second climbing section 22 is detachably connected to the bottom end of the first climbing section 21, and the first climbing section 21 and the second climbing section 22 can be detachably connected to the bottom of the tower crane body 1; the fixed seat 3 is fixedly arranged on the steel structure 100 of the building, the climbing frame 2 is detachably connected to the fixed seat 3, and the fixed seat 3 includes a jacking mechanism 31, which is configured to drive the climbing frame 2 to move in the vertical direction; the fixed seat 3 is provided with at least two, which can be divided into a first fixed seat 32 and a second fixed seat 33, the first fixed seat 32 corresponds to the first climbing section 21, and the second fixed seat 33 corresponds to the second climbing section 22.

[0045] The climbing frame 2 is connected to the steel structure 100 of the building through the fixed seat 3, without the need to rely on the space of the building core tube 200, with strong versatility, and indirectly increases the coverage of the tower crane body 1, shortens the lever arm of the hoisted objects, and thus increases the load capacity of the self-elevating tower crane; the first climbing section 21 and the second climbing section 22 cooperate with each other, and after the climbing frame 2 is driven to move upward relative to the fixed seat 3 by the jacking mechanism 31, the second climbing section 22 is first separated from the second fixed seat 33, and then the second climbing section 22 is separated from the first climbing section 21, the tower crane body 1 is separated from the first climbing section 21, and the tower crane body 1 is hoisted and raised to a predetermined position, and finally the second climbing section 22 is installed between the first climbing section 21 and the tower crane body 1, so that the tower crane body 1 can be climbed. The overall dead weight is small, the climbing process is simple and convenient, and the production cost is low.

[0046] It can be understood that after the climbing process is completed, the second climbing section 22 is located between the first climbing section 21 and the tower crane body 1, so the second climbing section 22 becomes the new first climbing section 21, and the corresponding fixed seat 3 becomes the new first fixed seat 32, and so on, the first climbing section 21 also becomes the new second climbing section 22, and the corresponding fixed seat 3 becomes the new second fixed seat 33.

[0047] It should be noted that both the tower crane body 1 and the climbing frame 2 are existing structures commonly used in the art, and their specific structures are not described here. In addition, the length of the climbing frame 2 can be determined according to actual construction requirements.

[0048] Specifically, the self-elevating tower crane further includes a winch 4, which is fixedly arranged on the steel structure 100 and is configured to drive the climbing frame 2 to move in the vertical direction. The arrangement of the winch 4 facilitates the hoisting of the second climbing section 22. It should be noted that the winch 4 is an existing device disclosed in the art, and its specific structure and principle are not described in detail herein.

[0049] More specifically, if the length of the second climbing section 22 needs to be adjusted, after the second climbing section 22 is separated from the first climbing section 21, the second climbing section 22 can be hoisted to the ground by the winch 4 and processed to lengthen or shorten it.

[0050] More specifically, both the first climbing section 21 and the second climbing section 22 are formed by connecting a plurality of segments 20 to each other, and a pulley 201 is detachably provided at the bottom of each segment 20 to facilitate movement and installation of the segment 20 .

[0051] Specifically, the self-elevating tower crane further includes a limit frame 5, the limit frame 5 is fixedly connected to the steel structure 100, the climbing frame 2 passes through the limit frame 5, and a limit frame 5 is arranged between two adjacent fixing seats 3. With the above arrangement, when the climbing frame 2 is too long, the limit frame 5 can play a role of reinforcement, further improving the stability of the climbing frame 2.

[0052] Specifically, the fixing seat 3 also includes a base plate 34, the lifting mechanism 31 is fixedly arranged on the base plate 34, the base plate 34 is provided with a limit hole penetrating in the vertical direction, and the climbing frame 2 passes through the limit hole. The above arrangement, the arrangement of the above base plate 34, can alleviate the shaking of the climbing frame 2 under the action of wind load to a certain extent and improve stability.

[0053] Specifically, the fixed seat 3 also includes a first limit plate 35 and a connecting beam 36. The first limit plate 35 is fixedly arranged on the base plate 34 and extends in the vertical direction; the connecting beam 36 is detachably connected to the climbing frame 2, and the connecting beam 36 can abut against the first limit plate 35 under the action of its own weight, and the jacking mechanism 31 can drive the connecting beam 36 to move upward and separate from the first limit plate 35. With the above arrangement, when the jacking mechanism 31 is not performing the jacking operation, the connecting beam 36 can abut against the first limit plate 35 under the action of its own weight, so that the fixed seat 3 can carry the climbing frame 2.

[0054] More specifically, one fixed seat 3 is equipped with a plurality of jacking mechanisms 31, and the plurality of jacking mechanisms 31 are symmetrically arranged about the climbing frame 2. Exemplarily, in this embodiment, two jacking mechanisms 31 are arranged, and the two jacking mechanisms 31 are arranged at intervals at two positions in the horizontal direction of the climbing frame 2.

[0055] More specifically, a connecting member 23 is detachably provided on one side of the climbing frame 2 close to the jacking mechanism 31 , and the connecting member 23 is detachably connected to the top of the connecting beam 36 to achieve a detachable connection between the climbing frame 2 and the fixing seat 3 .

[0056] Preferably, in this embodiment, the connecting member 23 is connected to the connecting beam 36 by bolts. In other embodiments, the connecting member 23 may also be welded to the connecting beam 36, which is not specifically limited here.

[0057] More specifically, two first limit plates 35 are arranged at intervals in the horizontal direction, and the lifting mechanism 31 is arranged between the two first limit plates 35. In the above arrangement, one lifting mechanism 31 is equipped with two first limit plates 35 to enhance the stability of the connecting beam 36.

[0058] More specifically, two second limit plates 361 are arranged at intervals along the horizontal direction at the bottom of the connecting beam 36, and the second limit plates 361 extend along the vertical direction, and the second limit plates 361 can be attached to the first limit plates 35. The second limit plates 361 can improve the stability of the climbing frame 2 in the horizontal direction.

[0059] Specifically, the lifting mechanism 31 is configured as a hydraulic cylinder. The hydraulic cylinder is an existing device commonly used in the art, and the specific structure is not repeated here. In other embodiments, the lifting mechanism 31 can also be other publicly known linear drive mechanisms, which are not specifically limited here.

[0060] Specifically, the self-elevating tower crane further includes a climbing drive mechanism (not shown in the figure), the fixed end of the climbing drive mechanism is arranged on the climbing frame 2, and the climbing drive mechanism is configured to drive the tower crane body 1 to rise relative to the climbing frame 2. The arrangement of the above-mentioned climbing drive mechanism can realize the climbing of the tower crane body 1 without the aid of external lifting equipment.

[0061] It should be noted that the above-mentioned climbing drive mechanism is a linear drive mechanism that has been disclosed in the art, and its specific structure and principle are not described here in detail.

[0062] The climbing method, using the self-elevating tower crane, comprises the following steps:

[0063] S1, the lifting mechanism 31 drives the climbing frame 2 to move upward relative to the steel structure 100;

[0064] In this step, the output end of the lifting mechanism 31 presses against the connecting beam 36 , so that the connecting beam 36 is separated from the first limiting plate 35 .

[0065] S2, the second climbing section 22 is separated from the second fixing seat 33;

[0066] In this step, the output end of the lifting mechanism 31 on the second fixing seat 33 is reset, so that the entire gravity of the climbing frame 2 acts entirely on the first fixing seat 32 , and the connecting member 23 is disassembled from the connecting beam 36 .

[0067] S3, the second climbing section 22 is separated from the first climbing section 21;

[0068] In this step, after the second climbing section 22 is separated from the first climbing section 21 , the second climbing section 22 can be hoisted to the ground by the winch 4 according to actual construction requirements for further processing, such as adding or reducing segments 20 .

[0069] S4, connecting the second climbing section 22 between the tower crane body 1 and the first climbing section 21;

[0070] In this step, the tower crane body 1 is raised relative to the first climbing section 21 through the climbing drive mechanism, and the second fixed seat 33 is removed from the steel structure 100, and the second fixed seat 33 is installed on the steel structure 100 between the tower crane body 1 and the first climbing section 21, and then the second climbing section 22 is hoisted between the tower crane body 1 and the first climbing section 21 by the winch 4 and installed.

[0071] It can be understood that after the climbing process is completed, the second climbing section 22 is located between the first climbing section 21 and the tower crane body 1, so the second climbing section 22 becomes the new first climbing section 21, and the corresponding fixed seat 3 becomes the new first fixed seat 32, and so on, the first climbing section 21 also becomes the new second climbing section 22, and the corresponding fixed seat 3 becomes the new second fixed seat 33.

[0072] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A self-elevating tower crane, characterized in that: include: A tower crane body (1) is configured to perform a lifting operation; A climbing frame (2), comprising at least one first climbing section (21) and at least one second climbing section (22), wherein the second climbing section (22) is detachably connected to the bottom end of the first climbing section (21), and both the first climbing section (21) and the second climbing section (22) can be detachably connected to the bottom of the tower crane body (1); A fixed seat (3) is fixedly arranged on a steel structure (100) of a building, the climbing frame (2) is detachably connected to the fixed seat (3), the fixed seat (3) comprises a lifting mechanism (31), and the lifting mechanism (31) is configured to drive the climbing frame (2) to move in a vertical direction; The fixing seat (3) is provided with at least two, which can be divided into a first fixing seat (32) and a second fixing seat (33), the first fixing seat (32) corresponds to the first climbing section (21), and the second fixing seat (33) corresponds to the second climbing section (22).

2. The self-elevating tower crane according to claim 1, characterized in that: The fixing seat (3) also includes a base plate (34), the lifting mechanism (31) is fixedly arranged on the base plate (34), the base plate (34) is provided with a limiting hole penetrating in the vertical direction, and the climbing frame (2) passes through the limiting hole.

3. The self-elevating tower crane according to claim 2, characterized in that: The fixing seat (3) further comprises: A first limiting plate (35) is fixedly arranged on the base plate (34) and extends in a vertical direction; The connecting beam (36) is detachably connected to the climbing frame (2); the connecting beam (36) can abut against the first limiting plate (35) under the action of its own weight; and the lifting mechanism (31) can drive the connecting beam (36) to move upward and separate from the first limiting plate (35).

4. The self-elevating tower crane according to claim 3, characterized in that: Two first limit plates (35) are arranged at intervals in the horizontal direction, and the lifting mechanism (31) is arranged between the two first limit plates (35).

5. The self-elevating tower crane according to claim 4, characterized in that: Two second limit plates (361) are arranged at intervals along the horizontal direction at the bottom of the connection beam (36); the second limit plates (361) extend along the vertical direction; and the second limit plates (361) can be attached to the first limit plates (35).

6. The self-elevating tower crane according to any one of claims 1 to 5, characterized in that: The lifting mechanism (31) is configured as a hydraulic cylinder.

7. The self-elevating tower crane according to any one of claims 1 to 5, characterized in that: It also comprises a climbing drive mechanism, the fixed end of which is arranged on the climbing frame (2), and the climbing drive mechanism is configured to drive the tower crane body (1) to rise relative to the climbing frame (2).

8. The self-elevating tower crane according to any one of claims 1 to 5, characterized in that: It also comprises a winch (4), wherein the winch (4) is fixedly arranged on the steel structure (100), and the winch (4) is configured to drive the climbing frame (2) to move in a vertical direction.

9. The self-elevating tower crane according to claim 1, characterized in that: It also comprises a limit frame (5), wherein the limit frame (5) is fixedly connected to the steel structure (100), the climbing frame (2) passes through the limit frame (5), and one limit frame (5) is arranged between two adjacent fixing seats (3).

10. A climbing method, characterized in that: Using the self-elevating tower crane according to any one of claims 1 to 9 comprises the following steps: S1, the lifting mechanism (31) drives the climbing frame (2) to move upward relative to the steel structure (100); S2, the second climbing section (22) is separated from the second fixing seat (33); S3, the second climbing section (22) is separated from the first climbing section (21); S4. Connect the second climbing section (22) between the tower crane body (1) and the first climbing section (21).

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