CN221140967U - Lifting equipment - Google Patents

Abstract

The present disclosure relates to a lifting apparatus comprising: a turntable (21); a main arm (1) for connection with the turntable (21); the bracket assembly (3) comprises a first tower arm bracket (31) and a second tower arm bracket (32), wherein the arm tail of the first tower arm bracket (31) and the arm tail of the second tower arm bracket (32) are respectively and detachably connected with the arm head of the main arm (1); the arm tail of the tower arm (4) is detachably connected with the arm head of the main arm (1); wherein the connection positions of the second tower arm support (32) and the tower arm (4) and the arm head of the main arm (1) are not coincident.

Description

Lifting equipment

Technical Field

The present disclosure relates to the field of lifting devices, and in particular, to a lifting device.

Background

The crawler crane is a truss type cantilever crane structure crane adopting a crawler walking chassis, and can perform operations such as lifting and hoisting materials. The crawler crane cannot run on a highway, long-distance transfer is required to be disassembled and transported, and the crawler crane is reassembled after reaching a construction site.

The crawler crane in the related art adopts a truss type arm support structure, the arm sections need to be tiled and assembled in a one-by-one mode in the assembling process, and the arm support is pulled up by using the amplitude-variable system of the crawler crane after the assembly, so that the required assembling field is larger, the longer the arm support system is, the larger the required assembling field is, and the adaptability to a narrow construction field is poor.

Disclosure of utility model

In view of this, the embodiments of the present disclosure provide a lifting device, which is helpful to reduce the space requirement of the boom dismounting operation on the field.

In one aspect of the present disclosure, there is provided a lifting apparatus comprising:

A turntable;

The main arm is used for being connected with the turntable;

the bracket assembly comprises a first tower arm bracket and a second tower arm bracket, and the arm tail of the first tower arm bracket and the arm tail of the second tower arm bracket are respectively detachably connected with the arm head of the main arm;

The arm tail of the tower arm is detachably connected with the arm head of the main arm;

Wherein, the connection positions of the second tower arm support and the tower arm and the arm head of the main arm are not coincident.

In some embodiments, the arm head of the main arm comprises:

The first tower arm support and the second tower arm support are respectively connected with the mounting frame; and

And the connecting device is connected with the mounting frame, and the tail of the tower arm is connected with the connecting device.

In some embodiments, the attachment means is triangular in shape, a first edge of the attachment means is attached to the mounting bracket, and a first apex of the attachment means opposite the first edge is attached to the tail of the tower arm.

In some embodiments, the mounting frame is quadrilateral, and has a first connection position, a second connection position and a third connection position, wherein the first connection position and the second connection position are respectively positioned at two adjacent vertexes of the quadrilateral, the third connection position is positioned at a side edge adjacent to the second connection position, and the second connection position is positioned between the first connection position and the third connection position;

The first tower arm support is connected with the first connecting position, the second tower arm support is connected with the second connecting position, and the connecting device is connected with the third connecting position.

In some embodiments, further comprising:

The first amplitude changing device is connected among the main arm, the first tower arm support and the second tower arm support and is configured to adjust the included angles between the first tower arm support and the second tower arm support and the main arm respectively in the amplitude changing plane of the main arm.

In some embodiments, the first horn comprises:

and the first steel wire rope can adjust the included angle between the main arm and the first tower arm support and/or the included angle between the main arm and the second tower arm support.

In some embodiments, further comprising:

One end of the second amplitude changing device is connected with the arm head of the second tower arm support, and the other end of the second amplitude changing device is detachably connected with the arm head of the tower arm through the first traction piece.

In some embodiments, the second horn comprises:

The second luffing pulley block comprises a first pulley and a second pulley which is closer to the ground than the first pulley;

and the second variable-amplitude steel wire rope is wound between the first pulley and the second pulley so as to adjust the distance between the first pulley and the second pulley.

In some embodiments, a first tower arm support and a second tower arm support are located between the main arm and the tower arm, the first tower arm support being located between the main arm and the second tower arm support.

In some embodiments, further comprising:

the turntable is rotatably arranged on the chassis;

a main arm luffing mechanism connected with the turntable and configured to luffing the main arm.

Therefore, according to the embodiment of the disclosure, the second tower arm support and the tower arm are detachably connected with different positions of the main arm head independently, and enough movement space is reserved between the second tower arm support and the connection positions of the tower arm and the main arm head, so that the angle between the second tower arm support and the tower arm can be adjusted in the disassembling and assembling process, and the tower arm can be conveniently integrally hoisted after being assembled. When the boom system is assembled, the first boom support and the second boom support can be connected with the main boom, the main boom is lifted up by a certain angle through the luffing operation of the main boom, and then the boom and the main boom are installed after enough installation sites are vacated for the boom, so that the boom does not need to be tiled and installed with the main boom in sequence, the space requirement on the installation sites can be greatly reduced, and the boom system has good adaptability to the disassembly and assembly sites under different application scenes.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural view of some embodiments of a lifting apparatus according to the present disclosure;

FIG. 2 is a partial structural schematic diagram of some embodiments of a lifting apparatus according to the present disclosure;

Fig. 3 is a partial schematic view of a second horn in accordance with some embodiments of the lifting apparatus of the present disclosure.

It should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale. Further, the same or similar reference numerals denote the same or similar members.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative, and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.

The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

In this disclosure, when a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device. When it is described that a particular device is connected to other devices, the particular device may be directly connected to the other devices without intervening devices, or may be directly connected to the other devices without intervening devices.

All terms (including technical or scientific terms) used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

The crawler crane cannot run on a highway, long-distance transfer is required to be disassembled and transported, and the crawler crane is reassembled after reaching a construction site. Because the weight of the parts is heavy, auxiliary cranes are required to carry out auxiliary hoisting in the assembling process, and the larger the ton level of the assembled crawler crane is, the larger the ton level of the required auxiliary cranes is, and the higher the cost is. The crawler crane adopts a truss type arm support structure, the arm sections of the main arm need to be tiled and assembled one by one in the assembling process, the tower arms in the working condition of the tower type auxiliary arm also need to be laid out one by one in sequence, and the required assembling field is larger, the longer the arm support system is, the larger the required assembling field is, and the adaptability to the narrow construction field is poor.

The related art generally designs and installs tower auxiliary arm (tower arm for short), tower auxiliary arm rear bracket (rear bracket for short) and tower arm are arranged at different hinge points on the main arm head, tower arm front bracket (front bracket for short) is arranged at tower arm bottom section arm lower part, and middle-small tonnage tower arm working condition front and rear brackets can also be simultaneously arranged at tower arm bottom section arm lower part. The tower arm is connected with the front support through a tower arm front pulling plate (for short, a front pulling plate), the tower arm is in a triangle structure with a fixed angle, a tower arm amplitude-variable steel wire rope is wound between the front support and the rear support, the angle change of the tower arm is realized through the retraction and the extension of the tower arm amplitude-variable steel wire rope on the tower arm amplitude-variable mechanism, and the change of the angle of the main arm is realized through the retraction and the extension of the main amplitude-variable system steel wire rope.

When the tower arm working condition is assembled, all arm sections are tiled and assembled one by one in sequence, the required assembly field is large, the adaptability of the construction field in a narrow space is poor, the main arm and the arm sections of the tower arm all need auxiliary cranes to assist in the assembly process, the auxiliary crane station needs a certain space, and the use of the auxiliary cranes can increase a certain cost.

In view of this, in one aspect of the disclosed embodiments, a lifting apparatus is provided, including but not limited to a crawler crane.

The hoisting device comprises: the boom system comprises a main arm 1, a turntable 21, a bracket assembly 3 and a tower arm 4, wherein the turntable 21 is arranged on a chassis 23, a luffing system 22 is connected with the turntable 21, and the main arm 1 of the boom system is connected with the turntable 21.

The bracket assembly 3 includes a first tower arm bracket 31 and a second tower arm bracket 32, and the arm tail of the first tower arm bracket 31 and the arm tail of the second tower arm bracket 32 are detachably connected with the arm head of the main arm 1, respectively. The arm tail of the tower arm 4 is detachably connected with the arm head of the main arm 1, and the connection positions of the second tower arm bracket 32 and the tower arm 4 with the arm head of the main arm 1 are not coincident.

In this embodiment, the second tower arm support 32 and the tower arm 4 are detachably connected to different positions of the arm head of the main arm 1 independently, and there is enough movement space between the connection positions of the second tower arm support 32 and the tower arm 4 and the arm head of the main arm 1, so that the angle between the second tower arm support 32 and the tower arm 4 can be adjusted in the disassembly and assembly process, and the tower arm 4 can be conveniently lifted integrally after being assembled. When the crane boom is assembled, the first tower boom support 31 and the second tower boom support 32 can be connected with the main boom 1, the main boom 1 is lifted up by a certain angle through the amplitude-variable operation of the main boom 1, and the tower boom 4 and the main boom 1 are installed after enough installation sites are left for the tower boom 4, so that the tower boom 4 does not need to be tiled and installed with one section of the main boom 1 in sequence, the space requirement on the installation sites can be greatly reduced, and the boom system has good adaptability to the disassembly and assembly sites under different application scenes.

Referring to fig. 1 and 2, in some embodiments, the arm head of the main arm 1 comprises: a mounting frame 10 and a connecting device 7. The first tower arm support 31 and the second tower arm support 32 are respectively connected with the mounting frame 10, the connecting device 7 is connected with the mounting frame 10, and the arm tail of the tower arm 4 is connected with the connecting device 7.

In this embodiment, the main arm 1 may include a mounting frame 10 for connecting with the first tower arm support 31 and the second tower arm support 32, respectively, and a connecting device 7 connected with the mounting frame 10 and used for mounting the tower arm 4, where the connecting device 7 is configured so that the tower arm 4 does not need to be fixedly connected with the second tower arm support 32, allowing the second tower arm support 32 and the tower arm 4 to be mounted with the main arm 1, respectively, and the connecting device 7 may further improve the connection stability of the tower arm 4.

Referring to fig. 1 and 2, in some embodiments, the attachment means 7 is triangular in shape, a first edge 71 of the attachment means 7 is attached to the mounting frame 10, and a first apex 72 of the attachment means 7 opposite the first edge 71 is attached to the tail of the tower arm 4.

In this embodiment, the connection device 7 includes, but is not limited to, a triangle, and the connection device 7 is hinged to the main arm 1 through a side edge, and is hinged to the tower arm 4 through a vertex corresponding to the side edge, so that the arm head position of the main arm 1 has enough space for the posture adjustment of the first tower arm support 31, the second tower arm support 32 and the tower arm 4 on the premise of guaranteeing the connection reliability of the tower arm 4 and the main arm 1, so as to facilitate the installation of the tower arm 4.

Referring to fig. 1 and 2, in some embodiments, the mounting frame 10 has a quadrilateral shape with a first connection location 11, a second connection location 12, and a third connection location 13, the first connection location 11 and the second connection location 12 being located at two adjacent vertices of the quadrilateral, respectively, the third connection location 13 being located at a side adjacent to the second connection location 12, and the second connection location 12 being located between the first connection location and the third connection location 13. The first tower arm holder 31 is connected to the first connection point 11, the second tower arm holder 32 is connected to the second connection point 12, and the connection device 7 is connected to the third connection point 13.

In this embodiment, the first tower arm support 31, the second tower arm support 32 and the connecting device 7 are respectively connected with different connection positions on the mounting frame 10 in a matching manner, the tower arm 4 and the second tower arm support 32 can be respectively and independently connected with the main arm 1, so that the included angle between the tower arm 4 and the second tower arm support 32 is allowed to be adjusted, the space between the connection positions of all arm frames on the arm head of the main arm 1 is increased, the tower arm 4 is convenient to automatically assemble and integrate with the main arm 1 after the main arm 1 is assembled, the space occupied in the assembling and disassembling process is reduced to the length of the longer one of the main arm 1 and the tower arm 4 by the sum of the lengths of the main arm 1 and the tower arm 4 in the prior art, the assembly and disassembly can be flexibly performed in a narrow space, and the operation requirement of large lifting height is met.

Referring to fig. 1, in some embodiments, the lifting apparatus further comprises a first horn 5 connected between the main boom 1, the first tower boom support 31, and the second tower boom support 32, configured to adjust the angles of the first tower boom support 31 and the second tower boom support 32, respectively, with the main boom 1 in the horn plane of the main boom 1.

The main arm 1 has a first working position and a second working position, and the angle between the second working position and the ground of the main arm 1 is larger than the angle between the first working position and the ground of the main arm 1. When the main arm 1 is positioned on the first working rotary table, the main arm 1 can be assembled in sections in parallel with the ground or forms a small included angle with the ground. The number of second working positions may be plural, and the main arm 1 may be in the second working position, including but not limited to an angle of 70-90 ° with the ground, so that sufficient assembly and installation space for the tower arm 4 may be provided.

In this embodiment, the first amplitude changing device 5 may adjust the included angles between the main arm 1 and the first tower arm support 31 and the second tower arm support 32 respectively during the amplitude changing of the main arm 1 to the second working position or after the amplitude changing of the main arm 1 to the second working position, so as to improve the hanging capability of the main arm 1 and the first tower arm support 31 and the second tower arm support 32, and facilitate the hanging operation and unfolding of the tower arm 4.

Referring to fig. 1, in some embodiments, the first horn 5 comprises a first wire rope capable of adjusting the angle between the main boom 1 and the first tower boom mount 31 and/or the angle between the main boom 1 and the second tower boom mount 32. In this embodiment, the amplitude of the main arm 1 can be achieved by winding and unwinding the first wire rope, so as to adjust the posture of the main arm 1, and switch the main arm 1 between the first working state and the second working state.

Referring to fig. 1 and 3, in some embodiments, the lifting apparatus further comprises: and one end of the second amplitude changing device 6 is connected with the arm head of the second tower arm bracket 32, and the other end of the second amplitude changing device 6 is detachably connected with the arm head of the tower arm 4 through a first traction piece 63.

In this embodiment, the angle between the second tower arm support 32 and the tower arm 4 may be changed by adjusting the second amplitude variation device 6, so that the tower arm 4 is convenient to be hung and mounted on the arm section of the tower arm 4 and pulled up after the tower arm 4 is assembled in the installation process of the tower arm 4, so that the assembled tower arm 4 is connected with the arm head of the main arm 1.

Referring to fig. 1 and 3, in some embodiments, the second luffing device 6 comprises a second luffing tackle 61 and a second luffing cable 62. The second luffing sheave block 61 includes a first sheave 611 and a second sheave 612 that is closer to the ground than the first sheave 611. The second luffing cable 62 is wound between the first pulley 611 and the second pulley 612 to adjust the spacing of the first pulley 611 and the second pulley 612.

The second pulley 612 is detachably connected to the tail of the tower arm 4 so as to pull the tail of the tower arm 4 up to the arm head of the main arm 1 by adjusting the distance between the first pulley 611 and the second pulley 612.

In this embodiment, the position of the second pulley 612 is adjustable by adjusting the length of the second luffing cable 62 so that the second pulley 612 can be connected to different positions of the tower arm 4, as well as the pulling and lifting of the tower arm 4.

Referring to fig. 1, in some embodiments, a first tower arm support 31 and a second tower arm support 32 are located between the main arm 1 and the tower arm 4, the first tower arm support 31 being located between the main arm 1 and the second tower arm support 32. In this embodiment, the first tower arm support 31 and the second tower arm support 32 of the lifting apparatus are located between the main arm 1 and the tower arm 4, and the first tower arm support 31 is located at a side close to the main arm 1.

In some embodiments, the lifting further comprises: chassis 23 and main arm horn 22. The turntable 21 is rotatably provided on the chassis 23, and the main arm horn 22 is connected to the turntable 21 and configured to horn the main arm 1.

In this embodiment, the main boom 1 is luffing by the main boom luffing mechanism 22, and when the main boom 1 is lifted to the second working position, the tower boom 4 is installed with the main boom 1 after a sufficient installation space is left for the tower boom 4, and the tower boom 4 does not need to be tiled and installed with a section of the main boom 1 in sequence, so that the space requirement of hoisting equipment on the installation space can be greatly reduced, and the boom system has good adaptability to the installation and disassembly spaces under different application scenes.

Referring to fig. 1, in some embodiments, the boom system further comprises a third horn 8, the third horn 8 being connected between the turntable 21, the first tower arm support 31, the second tower arm support 32, and the tower arm 4, configured to adjust the distance between the first tower arm support 31 and the turntable 21. The third luffing device 8 comprises a third wire rope 81, the length of the third wire rope 81 being adjustable. The third horn 8 also includes a hanger 82, the hanger 82 being disposed at the end of the third wire rope 81 and extending relative to the tower arm 4. In this embodiment, the hanging member 82 is disposed at the end portion of the third steel wire rope 81 extending out of the tower arm 4, so that the object can be conveniently lifted during the lifting operation of the boom system.

Referring to fig. 1, in some embodiments, the boom system further comprises a second pull 91 and a third pull 92. A second pulling member 91 is connected between the main boom 1 and the first tower boom support 31 and a third pulling member 92 is arranged between the luffing system 22 of the lifting device and the boom head of the main boom 1. The first, second and third pullers 63, 91 and 92 include, but are not limited to, in the form of pulling plates and/or cables. In this embodiment, the second pulling member 91 and the third pulling member 92 may increase the lifting capacity of the boom system and weaken the deformation of the boom.

Thus, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.

Claims (10)

1. A lifting apparatus, comprising:

a turntable (21);

A main arm (1) for connection with the turntable (21);

The bracket assembly (3) comprises a first tower arm bracket (31) and a second tower arm bracket (32), wherein the arm tail of the first tower arm bracket (31) and the arm tail of the second tower arm bracket (32) are respectively and detachably connected with the arm head of the main arm (1);

the arm tail of the tower arm (4) is detachably connected with the arm head of the main arm (1);

Wherein the connection positions of the second tower arm support (32) and the tower arm (4) and the arm head of the main arm (1) are not coincident.

2. Hoisting device according to claim 1, characterized in that the arm head of the main arm (1) comprises:

The first tower arm support (31) and the second tower arm support (32) are respectively connected with the mounting frame (10); and

And the connecting device (7) is connected with the mounting frame (10), and the tail of the tower arm (4) is connected with the connecting device (7).

3. Hoisting device according to claim 2, characterized in that the connecting means (7) are triangular, a first edge (71) of the connecting means (7) being connected to the mounting frame (10), a first vertex (72) of the connecting means (7) opposite the first edge (71) being connected to the tail of the tower arm (4).

4. Hoisting device according to claim 2, characterized in that the mounting frame (10) is in the form of a quadrilateral with a first connection location (11), a second connection location (12) and a third connection location (13), the first connection location (11) and the second connection location (12) being located at two adjacent vertices of the quadrilateral, respectively, the third connection location (13) being located at a side adjacent to the second connection location (12), the second connection location (12) being located between the first connection location and the third connection location (13);

The first tower arm support (31) is connected with the first connecting position (11), the second tower arm support (32) is connected with the second connecting position (12), and the connecting device (7) is connected with the third connecting position (13).

5. The lifting apparatus of claim 1, further comprising:

The first amplitude changing device (5) is connected between the main arm (1), the first tower arm support (31) and the second tower arm support (32) and is configured to adjust included angles between the first tower arm support (31) and the second tower arm support (32) and the main arm (1) respectively in an amplitude changing plane of the main arm (1).

6. Hoisting device as claimed in claim 5, characterized in that the first luffing device (5) comprises:

The first steel wire rope can adjust an included angle between the main arm (1) and the first tower arm support (31) and/or an included angle between the main arm (1) and the second tower arm support (32).

7. The lifting apparatus of claim 1, further comprising:

The second amplitude changing device (6), one end of the second amplitude changing device (6) is connected with the arm head of the second tower arm support (32), and the other end of the second amplitude changing device (6) is detachably connected with the arm head of the tower arm (4) through a first traction piece (63).

8. Hoisting device as claimed in claim 7, characterized in that the second luffing means (6) comprises:

A second luffing pulley block (61) comprising a first pulley (611) and a second pulley (612) closer to the ground than the first pulley (611);

A second luffing cable (62) wound between the first pulley (611) and the second pulley (612) for adjusting the spacing between the first pulley (611) and the second pulley (612).

9. Hoisting device according to claim 1, characterized in that the first tower arm support (31) and the second tower arm support (32) are located between the main arm (1) and the tower arm (4), the first tower arm support (31) being located between the main arm (1) and the second tower arm support (32).

10. The lifting apparatus of claim 1, further comprising:

a chassis (23), the turntable (21) being rotatably provided on the chassis (23);

a main arm luffing mechanism (22) connected to the turntable (21) and configured to luffing the main arm (1).