CN218879271U

CN218879271U - Counterweight device and operation vehicle

Info

Publication number: CN218879271U
Application number: CN202223503472.8U
Authority: CN
Inventors: 李良双
Original assignee: Hunan Sany Medium Lifting Machinery Co Ltd
Current assignee: Hunan Sany Medium Lifting Machinery Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-04-18
Anticipated expiration: 2032-12-27

Abstract

The application provides a counter weight device and operation car, including the counter weight, the revolving stage, hoist mechanism, the revolving stage has relative prelude and afterbody on its length direction of edge, the prelude is used for connecting control room isotructure, hoist mechanism sets up on the afterbody of revolving stage, the counter weight is equipped with the junction, can with frame location connection's location structure, hoist mechanism can be connected and drive the counter weight through the junction and go up and down, be equipped with at least two and distribute along the length direction of revolving stage, the counter weight distributes along the straight line direction has a plurality of location structures, so that the junction can be relative with each hoist mechanism homoenergetic, the problem of adjusting the centrobaric position of counter weight in order to adapt to different load requirements among the prior art has been solved.

Description

Counterweight device and operation vehicle

Technical Field

The application relates to the technical field of engineering machinery, in particular to a counterweight device and an operation vehicle.

Background

Different counter weights need to be loaded at the tail of the rotary table in the operation process of the crane, so that the operation requirements of different working conditions are met. Along with the continuous enhancement of crane performance, the counter weight is also heavier and heavier, and the cost also promotes relatively constantly. Therefore, the distance between the gravity center of the counterweight and the rotation center is increased, the stability of the whole machine is guaranteed, the distance between the gravity center of the counterweight and the rotation center is adjusted to meet different load requirements, the weight of the counterweight can be reduced, the cost of the counterweight is reduced, and the transportation cost of the counterweight is reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a counterweight device and a working vehicle to solve the problem of adjusting the position of the center of gravity of a counterweight to meet different load requirements in the prior art.

In order to achieve the above purpose, the present application provides the following technical solutions:

a counterweight device comprising:

the counterweight is provided with a connecting position and a positioning structure which can be connected with the frame in a positioning way;

a turntable;

the lifting mechanisms can be connected through the connecting positions and drive the balance weight to lift, and at least two lifting mechanisms are arranged and distributed along the length direction of the rotary table;

the counterweight is provided with a plurality of positioning structures along the linear direction, so that the connecting positions can be opposite to the lifting mechanisms.

Optionally, the lifting mechanism includes an oil cylinder connected to the turntable, and the oil cylinder is connected to the counterweight through the connecting position and drives the counterweight to ascend and descend.

Optionally, a hanging structure is arranged on the connecting position, and the oil cylinder can be locked with the hanging structure after being extended.

Optionally, the hanging structure comprises a connecting column, a stepped hole with open side faces and an open top face is formed in the connecting column, a flange is arranged at the end of a piston rod of the oil cylinder, and the flange can enter the stepped hole from the side face of the connecting column and is clamped in the stepped hole upwards.

Optionally, the lifting mechanism includes two oil cylinders symmetrically arranged about the rotary table, and the hoisting structure includes two connecting columns symmetrically arranged about the center line of the counterweight.

Optionally, a positioning seat is arranged on the frame, and the positioning structure is a positioning hole capable of being inserted into the positioning seat.

Optionally, the lifting mechanism is provided with two groups of front lifting mechanisms and two groups of rear lifting mechanisms, the front lifting mechanisms are closer to the rotation center of the turntable than the rear lifting mechanisms, and the positioning holes are divided into front positioning holes and rear positioning holes, when the front positioning holes are inserted into the positioning seats, the front lifting mechanisms are right above the connecting seats, and when the rear positioning holes are inserted into the positioning seats, the rear lifting mechanisms are right above the connecting seats.

Optionally, the rear lifting mechanism is arranged near the end of the turntable.

Optionally, the side wall of the cylinder barrel of the oil cylinder is connected with the side wall of the rotary table.

A work vehicle, comprising the counterweight device of any one of the above.

The application provides a counter weight device, the counter weight passes through hoist mechanism and loads on the revolving stage, because the counter weight has a plurality of positions of placing on the frame, when the counter weight is located different positions in proper order, its connection position just is relative with each hoist mechanism position in proper order, again by the hoist mechanism that corresponds with the counter weight connection promotion, thereby accomplish the counter weight and load the operation, because each hoist mechanism distributes along the length direction of revolving stage, when the counter weight is connected by different hoist mechanism, its focus has just changed for the distance of the centre of rotation of revolving stage, the problem of adjusting the position of counter weight focus among the prior art in order to adapt to different load requirements has been solved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a front lifting mechanism and a counterweight according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view illustrating a connection between a rear lifting mechanism and a counterweight according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural view of a counterweight and a frame according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of the connection column and the oil cylinder lock joint provided in the embodiment of the present application.

In fig. 1-4:

1-counterweight, 2-turntable, 3-connecting column, 4-stepped hole, 5-flange, 6-front lifting mechanism, 7-rear lifting mechanism, 8-front positioning hole, 9-rear positioning hole, 10-positioning seat, 11-vehicle frame and 12-rotation center.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

As shown in fig. 1-3, the present application provides a counterweight device, including a counterweight 1, a turntable 2, and a lifting mechanism, where the turntable 2 has a head portion and a tail portion opposite to each other along a length direction thereof, the head portion is used to connect a control cabin, the lifting mechanism is disposed on the tail portion of the turntable 2, the counterweight 1 is provided with a connection location and a positioning structure capable of being connected to a frame 11 in a positioning manner, and the lifting mechanism can be connected to drive the counterweight 1 to ascend and descend through the connection location, the at least two positioning structures are disposed and distributed along the length direction of the turntable 2, and the counterweight 1 is provided with a plurality of positioning structures distributed along a straight line direction, so that the connection location can be opposite to each lifting mechanism. So set up, counter weight 1 loads on revolving stage 2 through hoist mechanism, because counter weight 1 has a plurality of positions of placing on frame 11, when counter weight 1 is located different positions in proper order, its connection position just is relative with each hoist mechanism position in proper order, again by corresponding hoist mechanism with counter weight 1 connection promotion, thereby accomplish counter weight 1 and load the operation, because each hoist mechanism is along the length direction distribution of revolving stage 2, when counter weight 1 is connected by different hoist mechanism, its focus has just changed for the distance of the centre of rotation 12 of revolving stage 2, the problem of adjusting the focus position of counter weight 1 in order to adapt to different load requirements among the prior art has been solved. Moreover, compare in prior art, through the mode that mechanical swing arm changes the hoist mechanism's that is used for promoting counter weight 1 position, this application can break away from the complicated structure of mechanical swing arm, is favorable to manufacturing cost's control.

In a preferred embodiment, the lifting mechanism comprises an oil cylinder connected with the rotary table 2, the oil cylinder is extended and can be connected with the counterweight 1 through a connecting position, and the oil cylinder is shortened and can drive the counterweight 1 to ascend. Of course, the lifting mechanism can be set to other mechanisms capable of executing linear motion, such as a rack and pinion structure, preferably, the lifting mechanism is set to a hydraulic cylinder, and the arrangement is reliable in operation, compact in structure and small in occupied space, so that the tail portion of the rotary table 2 can be arranged in a plurality of ways, and the embodiment is guaranteed to have high implementability.

In order to ensure the structural stability of the oil cylinder, the side wall of the cylinder barrel provided with the oil cylinder is connected with the side wall of the rotary table 2, and the installation stress area is large.

In a specific embodiment, a hanging structure capable of being locked with the oil cylinder is arranged on the connecting position, the oil cylinder can be locked with the hanging structure when being extended, the oil cylinder can be shortened to drive the balance weight 1 to ascend, and after the oil cylinder drives the balance weight 1 to descend onto the frame 11, the oil cylinder can be separated from the balance weight 1, namely, the oil cylinder and the balance weight 1 are detachably connected. In this way, a specific structure is arranged on the counterweight 1 to provide a connecting medium for the suspension of the oil cylinder, so that no special structural requirements are required on the main body part of the counterweight 1, and the counterweight can be in any common form.

Further, as shown in fig. 4, the hanging structure comprises a connecting column 3, a stepped hole 4 with open side surfaces and top surfaces is formed in the connecting column 3, a flange 5 is arranged at the end of a piston rod of the oil cylinder, the flange 5 on the oil cylinder can enter the stepped hole 4 from the side surface of the connecting column 3 in the rotating process of the rotary table 2, the oil cylinder shortens and lifts the balance weight 1, and the flange 5 is upwards clamped in the stepped hole 4, so that the oil cylinder and the balance weight 1 are detachably locked. By the arrangement, the locking function is completed by utilizing a simplified structure, the practicability is high, and the production cost is favorably controlled.

In addition, set up hoist mechanism and include two hydro-cylinders about 2 symmetry settings of revolving stage, hang and connect the structure and include two spliced poles 3 about 1 central line symmetry settings of counter weight, so, the connecting point position of hydro-cylinder and counter weight 1 distributes along the length direction of counter weight 1, and is comparatively steady when counter weight 1 promotes, reduces the range of rocking that probably produces, is favorable to the safety of complete machine and operation environment.

In a specific embodiment, a columnar positioning seat 10 is arranged on the frame 11, and the positioning structure is a positioning hole capable of being inserted into the positioning seat 10; of course, it may also be configured that the frame 11 is provided with a strip-shaped positioning seat, the positioning structure is a strip-shaped groove engaged with the positioning seat, and the plurality of grooves are arranged in parallel.

In an optional embodiment, two sets of lifting mechanisms are provided, namely, a front lifting mechanism 6 and a rear lifting mechanism 7, or a front oil cylinder and a rear oil cylinder, the front lifting mechanism 6 is closer to the rotation center 12 of the turntable 2 than the rear lifting mechanism 7, that is, the front oil cylinder is located inside the rear oil cylinder, and the positioning holes are divided into a front positioning hole 8 and a rear positioning hole 9, when the front positioning hole 8 is plugged with the positioning seat 10, the front lifting mechanism 6 is directly over the connecting column 3 on the connecting position, and when the rear positioning hole 9 is plugged with the positioning seat 10, the rear lifting mechanism 7 is directly over the connecting column 3 on the connecting position, so that multiple loading positions of the counterweight 1 can be realized by designing the positioning holes of the counterweight 1 and adaptively designing the number of the oil cylinders, and at least two load requirements are met. Of course, when the load requirement is more, the number of the positioning holes and the oil cylinders can be adaptively designed.

Furthermore, the rear lifting mechanism 7 is arranged close to the tail end of the rotary table 2, so that the limited installation space at the tail part of the rotary table 2 is favorably fully utilized, and the structural arrangement is optimized.

Based on the counterweight device, the embodiment of the application also provides the working vehicle which comprises the counterweight device. Since the working vehicle has the counterweight device, please refer to the above contents for the beneficial effects brought by the counterweight device, and the details are not repeated herein.

In an alternative embodiment, the work vehicle is provided as a crane. It should be noted that the adjustment of the position of the counterweight 1 on the frame 11 is carried by the boom of the crane without depending on external mechanical equipment.

The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.

The block diagrams of devices, apparatuses, systems referred to in this application are only given as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".

It should also be noted that in the devices, apparatuses, and methods of the present application, the components or steps may be decomposed and/or recombined. These decompositions and/or recombinations are to be considered as equivalents of the present application.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

It should be understood that the terms "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used for clearly explaining the technical solutions, and are not used for limiting the protection scope of the present application. The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

Claims

1. A counterweight device, comprising:

the counterweight (1) is provided with a connecting position and a positioning structure which can be connected with the frame (11) in a positioning way;

a turntable (2);

the lifting mechanisms can be connected through the connecting positions and drive the balance weight (1) to lift, and at least two lifting mechanisms are arranged and distributed along the length direction of the rotary table (2);

the counterweight (1) is provided with a plurality of positioning structures along the linear direction, so that the connecting position can be opposite to each lifting mechanism.

2. The counterweight device according to claim 1, characterized in that said lifting mechanism comprises a cylinder connected to said turntable (2), said cylinder being connected to said counterweight (1) via said connection point and driving said counterweight (1) to rise and fall.

3. The counterweight device according to claim 2 wherein said attachment location has a hitch structure, and said cylinder is extendable to latch with said hitch structure.

4. The counterweight device according to claim 3, characterized in that the hanging structure comprises a connecting column (3), a stepped hole (4) which is open on the side surface and the top surface is arranged on the connecting column (3), a flange (5) is arranged at the end part of the piston rod of the oil cylinder, and the flange (5) can enter the stepped hole (4) from the side surface of the connecting column (3) and is clamped upwards in the stepped hole (4).

5. Counterweight device according to claim 4, characterized in that said lifting mechanism comprises two said cylinders arranged symmetrically with respect to said turntable (2), and said suspension structure comprises two said connecting columns (3) arranged symmetrically with respect to the center line of said counterweight (1).

6. The counterweight device according to claim 1, wherein a positioning seat (10) is provided on the frame (11), and the positioning structure is a positioning hole capable of being inserted into the positioning seat (10).

7. The counterweight device according to claim 6, wherein said lifting mechanism is provided with two sets of front lifting mechanism (6) and rear lifting mechanism (7), said front lifting mechanism (6) is closer to the rotation center (12) of said turntable (2) than said rear lifting mechanism (7), and said positioning holes are divided into a front positioning hole (8) and a rear positioning hole (9), when said front positioning hole (8) is inserted into said positioning seat (10), said front lifting mechanism (6) is right above said connection position, when said rear positioning hole (9) is inserted into said positioning seat (10), said rear lifting mechanism (7) is right above said connection position.

8. Counterweight device according to claim 7, characterized in that said rear lifting means (7) are arranged close to the end of said turntable (2).

9. A counterweight device according to claim 2, characterized in that the side wall of the cylinder barrel of the cylinder is connected to the side wall of the turntable (2).

10. A work vehicle comprising a counterweight according to any one of claims 1-9.