CN113184728A

CN113184728A - Crane with a movable crane

Info

Publication number: CN113184728A
Application number: CN202110654480.3A
Authority: CN
Inventors: 林华; 孟进军; 邢文清; 周前进; 陈国亮; 丁美莲
Original assignee: Construction Machinery Branch of XCMG
Current assignee: Construction Machinery Branch of XCMG
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-07-30

Abstract

The invention relates to a crane, comprising: a swing mechanism; the rotary table is detachably arranged at the top of the rotary mechanism; and the frame is detachably arranged at the bottom of the slewing mechanism. The main machine structure of the crane integrates the rotary table and the frame in a detachable assembly connection mode through the swing mechanism, the rotary table, the frame and the swing mechanism can be disassembled when the crane is transferred to a construction site, the rotary table, the frame and the swing mechanism are changed into a small-size structure to be transported, the main machine structure is also disassembled in the height direction, the single piece transportation volume and the single piece transportation weight of the main machine structure are reduced, the transportation weight and size limitation exceeding regulations are met, the transportation time is shortened, and the transportation cost is reduced.

Description

Crane with a movable crane

Technical Field

The invention relates to the field of engineering machinery, in particular to a crane.

Background

Among the large components of the crawler crane, the main machine structure formed by the turntable and the frame is a key bearing structure for the crawler crane to connect with a vehicle. In the existing crawler crane products, most of the main machines of the products below 400 tons adopt the traditional integral structure. With the increase of the lifting capacity of the crawler crane, particularly the demand of products with ultra-large tonnage above kiloton, all parts (a rotary table, a frame and a swing mechanism) of a main machine are obviously increased in weight and volume, and are limited by the condition that the main machine cannot be over-high and over-heavy in transportation, and the transportation is difficult.

Disclosure of Invention

Some embodiments of the invention provide a crane for alleviating the problem of difficulty in transportation.

Some embodiments of the invention provide a crane comprising:

a swing mechanism;

the rotary table is detachably arranged at the top of the rotary mechanism; and

the frame is detachably arranged at the bottom of the slewing mechanism.

In some embodiments, the swing mechanism comprises:

the first flange plate is detachably connected with the rotary table;

the second flange plate is detachably connected with the frame; and

and the slewing bearing is connected with the first flange plate and the second flange plate.

In some embodiments, the crane further comprises a first connecting member, and the bottom of the rotating platform is provided with a first annular member, and the first annular member and the first flange plate are connected through the first connecting member.

In some embodiments, the first connecting member includes a first pin, and a plurality of first pins are disposed along a circumferential direction of the first ring member to connect the first ring member and the first flange.

In some embodiments, the first flange is an annular flange.

In some embodiments, the crane further comprises a second connecting member, and the top of the frame is provided with a second ring member, and the second ring member is connected with the second flange plate through the second connecting member.

In some embodiments, the second connecting member includes a second pin, and a plurality of second pins are disposed along a circumferential direction of the second ring member to connect the second ring member and the second flange.

In some embodiments, the second flange is an annular flange.

In some embodiments, the swing mechanism further includes a swing reducer disposed on the first flange or the second flange and drivingly connected to the swing support.

Based on the technical scheme, the invention at least has the following beneficial effects:

in some embodiments, the turntable and the frame are detachably assembled and connected into a whole through the swing mechanism by the main machine structure of the crane, the turntable, the frame and the swing mechanism can be disassembled when the construction site is transferred, the turntable, the frame and the swing mechanism are changed into a small-volume structure for transportation, namely the turntable, the frame and the swing mechanism are disassembled in the height direction of the main machine structure, the transportation volume and the weight of single pieces of the main machine structure are reduced, the regulation limit of transportation weight and size overrun is met, the transportation time is shortened, and the transportation cost is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic illustration of a partial structure of a crane provided in accordance with some embodiments of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic view of a slewing mechanism of a crane provided according to some embodiments of the present invention.

The reference numbers in the drawings illustrate the following:

1-a slewing mechanism; 11-a first flange; 12-a second flange; 13-a slewing bearing; 14-a first connector; 15-a second connector; 16-a rotary reducer;

2-a turntable; 21-a first annular member;

3-a frame; 31-second ring member.

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. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.

The main machine structure of the crane comprises a rotary table, a frame and a slewing mechanism. The rotary table and the frame are key bearing structural members of a main machine of the crane. With the increasing tonnage of cranes, the size of a main machine structure consisting of a rotary table and a frame is also increasing, in the related technology, most main machines of cranes adopt traditional integral structures, and with the emergence of cranes of kiloton or above, the single-piece overall dimension and weight of the integral main machine structure cannot meet the requirements of national road regulations.

Based on this, some embodiments of the present disclosure provide a crane, which is used for alleviating the problem of large volume and difficult transportation of a super-tonnage crane main machine.

As shown in fig. 1, in some embodiments, the crane includes a slewing mechanism 1, a turntable 2, and a carriage 3.

The turntable 2 is detachably arranged on the top of the slewing mechanism 1.

The rotary table 2 is a rotary platform which is used for mounting a suspension arm, a rotary mechanism 1, a hoisting mechanism, a power system, a hydraulic system and a cab on the crane.

The frame 3 is detachably arranged at the bottom of the swing mechanism 1.

The frame is a load transmission structure used for connecting the slewing mechanism 2 and the walking crawler on the crane.

The slewing mechanism 1 is arranged between the turntable 2 and the frame 3 and is used for driving the loading turntable 2 to rotate.

In the embodiment, the turntable 2 and the frame 3 are separated from the swing mechanism 1 into an upper, middle and lower three-part structure, the turntable 2 and the frame 3 are assembled and connected into a whole through the swing mechanism 1 in the middle, the turntable 2, the frame 3 and the swing mechanism 1 can be disassembled when a construction site is transferred, the turntable, the frame and the swing mechanism are changed into a small-volume structure for transportation, namely, the turntable, the frame and the swing mechanism are disassembled in the height direction, the transportation volume and the weight of single pieces of the host structure are reduced, the regulatory limit of transportation weight and size overrun is met, the transportation time is shortened, and the transportation cost is reduced.

In some embodiments, the swing mechanism 1 includes a first flange 11, a second flange 12, and a swing support 13.

The first flange 11 is detachably connected to the turntable 2. The second flange 12 is detachably connected to the frame 3. The slewing bearing 13 connects the first flange 11 and the second flange 12.

The swing mechanism 1 is a double-flange structure comprising a first flange 11 and a second flange 12, the double-flange structure can be respectively connected with the rotary table 2 and the frame 3, and can be disassembled into an upper part, a middle part and a lower part in the height direction during transferring, the swing mechanism 1, the rotary table 2 and the frame 3 can be respectively and independently transported in a single piece, the transportation size and weight of a single piece of a host are reduced, the problem that transportation is difficult due to the limitation of the transportation weight and size during transferring of an ultra-large tonnage crane is solved, and the transportation is more convenient.

In some embodiments, the crane further comprises a first connecting member 14, the bottom of the turntable 2 is provided with a first ring member 21, and the first ring member 21 is connected to the first flange 11 through the first connecting member 14.

In some embodiments, the first connecting member 14 includes a first pin, and a plurality of first pins are disposed along the circumference of the first ring member 21 to connect the first ring member 21 and the first flange 11.

In some embodiments, the first flange 11 is an annular flange.

First ring flange 11 is the annular, and first ring member 21 of first ring flange 11 and revolving stage 2 bottom is through first round pin hub connection, and it is convenient to connect the dismantlement, can realize the split many times.

In some embodiments, the crane further comprises a second connecting member 15, the top of the frame 3 is provided with a second annular member 31, and the second annular member 31 is connected with the second flange 12 through the second connecting member 15.

In some embodiments, the second connecting member 15 includes a second pin, and a plurality of second pins are disposed along the circumference of the second annular member 31 to connect the second annular member 31 and the second flange 12.

In some embodiments, the second flange 12 is an annular flange.

The second flange 12 is annular, and the second flange 12 is connected with a second annular part 31 at the top of the frame 3 through a second pin shaft, so that the connection and the disassembly are convenient, and the repeated disassembly can be realized.

The swing mechanism 1 is independently separated by pulling a first pin shaft between the first annular part 21 and the first flange plate 11 at the bottom of the rotary table 2 and pulling a second pin shaft between the second annular part 31 and the second flange plate 12 at the top of the frame 3, so that the upper, middle and lower parts of the main machine structure are realized, the weight and size of each separated part are reduced to a great extent after the parts are separated, the transportation limit requirements of road regulations can be well met, and the problems of large volume, difficult transportation and high transportation cost of super-tonnage products are solved. The assembling process is opposite, and three split single parts are assembled together by assembling the first pin shaft and the second pin shaft.

The slewing mechanism 1 is respectively connected with the first ring-shaped piece 21 at the bottom of the turntable 2 and the second ring-shaped piece 31 at the top of the frame 3 through the annular first flange plate 11 and the annular second flange plate 12, and the flange plates and the ring-shaped pieces are connected through a plurality of pin shafts arranged in the circumferential direction, so that the slewing mechanism is convenient to connect, uniform in load transfer distribution and good in force transfer.

In some embodiments, the slewing gear 1 further comprises a slewing reducer 16, and the slewing reducer 16 is disposed on the first flange 11 or the second flange 12 and is drivingly connected to the slewing bearing 13.

Optionally, the crane comprises a crawler crane. The crawler crane is a truss type arm frame structure crane adopting a crawler traveling chassis.

Based on the embodiments of the invention described above, the technical features of one of the embodiments can be advantageously combined with one or more other embodiments without explicit negatives.

In the description of the present invention, it should be understood that the terms "first", "second", "third", etc. are used to define the components, and are used only for the convenience of distinguishing the components, and if not otherwise stated, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present invention.

Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.

Claims

1. A crane, comprising:

a swing mechanism (1);

the rotary table (2) is detachably arranged at the top of the rotary mechanism (1); and

the frame (3) is detachably arranged at the bottom of the slewing mechanism (1).

2. Crane according to claim 1, characterized in that the slewing mechanism (1) comprises:

the first flange plate (11) is detachably connected with the rotary table (2);

the second flange (12) is detachably connected with the frame (3); and

and the slewing bearing (13) is connected with the first flange plate (11) and the second flange plate (12).

3. A crane as claimed in claim 2, further comprising a first connecting member (14), wherein a first ring member (21) is provided at the bottom of the turntable (2), and wherein the first ring member (21) is connected to the first flange (11) via the first connecting member (14).

4. A crane as claimed in claim 3, wherein said first connecting member (14) comprises a first pin, a plurality of said first pins being provided along the circumference of said first annular member (21) for connecting said first annular member (21) to said first flange (11).

5. A crane as claimed in claim 3, characterized in that the first flange (11) is an annular flange.

6. A crane according to claim 2, further comprising a second connecting member (15), wherein a second annular member (31) is provided on the top of the frame (3), and the second annular member (31) is connected to the second flange (12) via the second connecting member (15).

7. A crane as claimed in claim 6, wherein said second coupling member (15) comprises a second pin, a plurality of said second pins being provided along the circumference of said second annular member (31) for coupling said second annular member (31) to said second flange (12).

8. A crane as claimed in claim 6, characterized in that the second flange (12) is an annular flange.

9. A crane as claimed in claim 2, characterized in that said slewing gear (1) further comprises a slewing reducer (16), said slewing reducer (16) being arranged on said first flange (11) or said second flange (12) and being drivingly connected to said slewing bearing (13).