CN217230041U

CN217230041U - Crawler crane with host self-detaching function

Info

Publication number: CN217230041U
Application number: CN202220778130.8U
Authority: CN
Inventors: 毕琳琳; 田洪杰; 周玉龙
Original assignee: Construction Machinery Branch of XCMG
Current assignee: Construction Machinery Branch of XCMG
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-08-19
Anticipated expiration: 2032-04-06

Abstract

The utility model discloses a crawler crane with host computer is from tearing open function of hoisting machinery technical field aims at solving among the prior art crawler crane host installation inefficiency, the loaded down with trivial details scheduling problem of mounting means. The device comprises a rotary table, a front supporting leg, a rear supporting leg, a first supporting leg structure and a second supporting leg structure; the front supporting leg and the first supporting leg structure are fixed on the front side of the rotary table through a pin shaft; a first jacking mechanism is arranged between the front supporting leg and the first supporting leg structure; the rear supporting leg and the second supporting leg structure are fixed on the rear side of the rotary table through a pin shaft; a second jacking mechanism is arranged between the rear supporting leg and the second supporting leg structure; during transportation, the front supporting legs and the rear supporting legs are rotatably folded to the side faces of the rotary table, and overlapping placement is not generated; during operation, the front supporting leg and the rear supporting leg rotate to be perpendicular to the ground; the utility model is suitable for a crawler crane can promote track machine heavy machinery operating efficiency greatly.

Description

Crawler crane with host self-detaching function

Technical Field

The utility model relates to a crawler crane with host computer is from tearing open function belongs to hoisting machinery technical field.

Background

The crawler crane is a hoisting machine which runs by a crawler and is used for hoisting and hoisting, and can perform the operations of material hoisting, transportation, loading and unloading, installation and the like. The kiloton crawler crane is complex in structure, large in size and complex in dismounting process, and the key problem of improving product competitiveness and gaining favor of customers is how to reasonably design the dismounting process of the crawler crane and improve the assembling performance of the crawler crane. Because the kiloton-level crawler crane is large in size, the kiloton-level crawler crane does not have a long-distance running function. Therefore, the work site needs to be disassembled for transportation and assembled for work. The existing crawler crane host machine is low in installation efficiency, the assembly method is generally passively installed from bottom to top, a truck frame, a turntable assembly, a hoisting mechanism and a variable amplitude winch are sequentially installed by means of an auxiliary crane, the installation mode cannot realize synchronous installation of a plurality of unrelated mechanisms, the truck frame and the hoisting mechanism cannot be simultaneously installed on the turntable because the position of the turntable assembly is not fixed, the hoisting mechanism can only be installed inside the turntable after the turntable and a truck frame are installed, and the installation mode is relatively low in efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a crawler crane with host computer is from tearing open function, contain and take crane host computer dismouting function, can promote the heavy quick-witted operating efficiency of crawler crane greatly.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides a crawler crane with a host self-dismounting function, which comprises a rotary table, a front supporting leg, a rear supporting leg, a first supporting leg structure and a second supporting leg structure; the front supporting leg and the first supporting leg structure are fixed on the front side of the rotary table through a pin shaft; a first jacking mechanism is arranged between the front supporting leg and the first supporting leg structure; the rear supporting leg and the second supporting leg structure are fixed on the rear side of the rotary table through a pin shaft; a second jacking mechanism is arranged between the rear supporting leg and the second supporting leg structure; during transportation, the front supporting legs and the rear supporting legs are rotationally retracted to the side faces of the rotary table and are not overlapped; during operation, the front supporting leg and the rear supporting leg rotate to be perpendicular to the ground.

Further, the front leg and the rear leg are provided with telescopic members.

Further, the telescoping member comprises a hydraulic ram.

Furthermore, an inclined pull rod is arranged between the front/rear supporting legs and the rotary table.

Furthermore, a first supporting leg fixing part for fixing the front supporting leg in a transportation state is arranged on the rotary table.

Furthermore, a second supporting leg fixing part for fixing the rear supporting leg in a transportation state is arranged on the rotary table.

Further, the first/second jacking mechanism comprises a hydraulic oil cylinder.

Furthermore, the frame is provided with a second positioning lug plate which is used for accurately positioning with the first positioning lug plate arranged on the rotary table.

Compared with the prior art, the utility model discloses the beneficial effect who reaches:

the utility model provides a crawler crane with host computer is from tearing open function, the side of revolving stage is packed up to preceding landing leg, back landing leg on this revolving stage each other not producing overlap when transporting, can rationally effectually avoid the revolving stage to exceed the transportation width.

The height of each front supporting leg and each rear supporting leg can be adjusted through various hydraulic oil cylinders, the rotary table is lifted to the required height to perform operation during installation, and the operation mode is simple and efficient.

The turntable and the frame required to be assembled can be accurately positioned by the positioning lug plate and the second positioning lug plate, so that the assembly effect is improved, manual adjustment is reduced, and time and labor are saved.

Drawings

FIG. 1 is a schematic front view of a crawler crane with a main frame self-detaching function;

FIG. 2 is a top view of the FIG. 1 operating condition;

FIG. 3 is an enlarged view of the mainframe of FIG. 1 installed;

in the figure: 1. a turntable; 2. a front leg; 3. a rear leg; 4. a first leg structure; 5. a second leg structure; 6. a first jacking mechanism; 7. a second jacking mechanism; 8. a first leg fixing member; 9. a second leg mount; 10. a diagonal member; 11. a slewing bearing; 12. a seat ring; 13. a first positioning ear plate; 14. and a second positioning ear plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of 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 construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The first embodiment is as follows:

referring to fig. 1, the embodiment provides a crawler crane with a main machine self-detaching function, and the crawler crane includes a rotary table 1, a front leg 2, a rear leg 3, a first leg structure 4, and a second leg structure 5. The front supporting leg 2 and the first supporting leg structure 4 are fixed on the front sides of the left side and the right side of the rotary table 1 through pin shafts, and the rear supporting leg 3 and the second supporting leg are fixed on the rear sides of the left side and the right side of the rotary table 1 through pin shafts. One end of the first jacking mechanism 6 is connected with the front supporting leg 2 through a pin shaft, and the other end of the first jacking mechanism is connected with the first supporting leg structure 4 through a pin shaft. One end of the second jacking mechanism 7 is connected with the rear supporting leg 3 through a pin shaft, and the other end of the second jacking mechanism is connected with the second supporting leg structure 5 through a pin shaft.

Referring to fig. 2, during transportation, the front leg 2 and the rear leg 3 are respectively and correspondingly rotated and stored on the side of the turntable 1 under the action of the first jacking mechanism 6 and the second jacking mechanism 7, and the two mechanisms do not overlap. Such setting can guarantee in the transportation, effectively avoids 1 holistic width of revolving stage to exceed the transportation width. Specifically, the front support legs 2 which are rotatably accommodated on the side face of the rotary table 1 can be placed in a parallel state with the ground, the rear support legs 3 can be placed at a certain angle with the ground, the front support legs and the rear support legs can be arranged in an opposite mode, or the front support legs and the rear support legs can be placed at a certain angle with the ground, and any one placing mode needs to be paid attention to avoid the overlapping state of the front support legs and the rear support legs. During operation, the front supporting legs 2 and the rear supporting legs 3 are rotated to be vertical to the ground under the action of the corresponding first jacking mechanism 6 and the corresponding second jacking mechanism 7 respectively.

Specifically, the front leg 2 and the rear leg 3 are respectively provided with a telescopic member for conveniently adjusting the height of the turntable 1 in the operating state. The telescoping members may be hydraulic rams.

Preferably, diagonal draw bars 10 are provided between the front leg 2 and the turntable 1, and the same diagonal draw bars 10 are also provided between the rear leg 3 and the turntable 1. The diagonal draw bar 10 limits the rotary table 1, and can ensure the sufficient stability of the rotary table 1.

Preferably, the turntable 1 is provided with a first leg fixing part 8 for fixing the front leg 2, so that the front leg 2 and the turntable 1 are fixed together by the first leg fixing part 8 in the transportation process, and the front leg 2 is prevented from swinging back and forth in the transportation process; also be provided with second landing leg mounting 9 that is used for fixed back landing leg 3 on the revolving stage 1, be convenient for in the transportation, second landing leg mounting 9 is together fixed back landing leg 3 and revolving stage 1, prevents back landing leg 3 swing back and forth in the transportation.

Specifically, the first jacking mechanism 6 comprises a hydraulic oil cylinder, and the second jacking mechanism 7 also comprises a hydraulic oil cylinder. The first jacking mechanism 6 and the second jacking mechanism 7 respectively control the rotating angles of the front supporting leg 2 and the rear supporting leg 3 through respective hydraulic oil cylinders.

Preferably, the crawler crane with the host self-detaching function further comprises a frame to be mounted, and the frame is provided with a second positioning lug plate 14; in addition, the turntable 1 is provided with a first positioning lug plate 13, so that the turntable and the frame can be accurately assembled through a second positioning lug plate 14 during assembly; specifically, the crawler crane with the main machine self-detaching function is further provided with a slewing bearing 11, and a seat ring 12 is arranged on the frame.

The second embodiment:

referring to fig. 3, the host installation process includes: the front supporting leg 2 and the rear supporting leg 3 of the rotary table 1 are supported on the ground, and the inclined pull rods 10 are used for limiting the rotary table 1, so that the sufficient stability of the rotary table 1 can be ensured. Then the transport vehicle is driven away after the turntable 1 is adjusted to a proper height, and at the moment, the hoisting mechanism and the variable-amplitude winch can be placed into the turntable 1 by an auxiliary crane for installation. At the same time, the transport vehicle with the frame is driven to the vicinity of the turntable 1, and the position of the transport vehicle is adjusted so that the relative position of the turntable 1 and the frame is as close as possible to that shown in fig. 3. In fig. 3, the first positioning lug plate 13 and the second positioning lug plate 14 are correspondingly connected with the turntable 1 by using a tool such as a steel wire rope or a zipper and the like through a flexible connection technology, and after the connection, the height of the turntable 1 is adjusted to enable the steel wire rope or the zipper to be in a tensioning state in the vertical direction. The purpose of this is to make the slewing bearing 11 on the turntable 1 and the circle center of the seat ring 12 on the vehicle frame accurately align, and then slowly drop the turntable 1, ensuring that the turntable 1 and the vehicle frame are accurately butted.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. A crawler crane with a host self-detaching function is characterized by comprising a rotary table, a front supporting leg, a rear supporting leg, a first supporting leg structure and a second supporting leg structure; the front supporting leg and the first supporting leg structure are fixed on the front side of the rotary table through a pin shaft; a first jacking mechanism is arranged between the front supporting leg and the first supporting leg structure; the rear supporting leg and the second supporting leg structure are fixed on the rear side of the rotary table through a pin shaft; a second jacking mechanism is arranged between the rear supporting leg and the second supporting leg structure; during transportation, the front supporting legs and the rear supporting legs are rotatably folded to the side faces of the rotary table, and overlapping placement is not generated; during operation, the front supporting leg and the rear supporting leg rotate to be perpendicular to the ground.

2. A crawler crane having a self-disassembling function of a main unit according to claim 1, wherein the front and rear legs have telescopic members.

3. A crawler crane having a self-disassembling function of the main unit according to claim 2, wherein said telescopic member comprises a hydraulic cylinder.

4. The crawler crane with the self-disassembling function of the main unit as claimed in claim 1, wherein a diagonal draw bar is provided between the front/rear support legs and the turntable.

5. The crawler crane with the self-detaching function of the main unit as claimed in claim 1, wherein the turntable is provided with a first leg fixing member for fixing the front leg in the transportation state.

6. The crawler crane with the self-detaching function of the main unit as claimed in claim 1, wherein the turntable is provided with a second leg fixing member for fixing the rear leg in the transportation state.

7. The crawler crane with the self-disassembling function of the main machine as claimed in claim 1, wherein the first/second jacking mechanism comprises a hydraulic cylinder.

8. The crawler crane with the host self-detaching function as claimed in claim 1, further comprising a frame, wherein the frame is provided with a second positioning ear plate for positioning with the first positioning ear plate provided on the turntable.