Counter weight translation subassembly and hoist
阅读说明:本技术 一种配重平移组件及起重机 (Counter weight translation subassembly and hoist ) 是由 杨春 杨尚峰 苏龙 于 2019-10-31 设计创作,主要内容包括:本发明公开了一种配重平移组件及起重机,涉及工程机械技术领域。包括固定设置在转台上的驱动件,所述驱动件的输出端与摆动臂的一端转动连接,所述摆动臂上设置有配重,所述配重的重心远离所述摆动臂与所述输出端转动连接的一端。在移动配重重心时不需要拆卸配重和占用额外的纵向空间,能够适用狭窄施工场地作业,进而提升作业效率。(The invention discloses a balance weight translation assembly and a crane, and relates to the technical field of engineering machinery. Including the fixed driving piece that sets up on the revolving stage, the output of driving piece is rotated with the one end of swing arm and is connected, be provided with the counter weight on the swing arm, the focus of counter weight is kept away from the swing arm with the output rotates the one end of connecting. Need not dismantle the counter weight and occupy extra vertical space when removing the counter weight focus, can be suitable for narrow construction site operation, and then promote the operating efficiency.)
1. The utility model provides a counter weight translation subassembly, its characterized in that, is including the fixed driving piece that sets up on the revolving stage, the output of driving piece is connected with the one end rotation of swing arm, be provided with the counter weight on the swing arm, the focus of counter weight is kept away from the swing arm with the output rotates the one end of connecting.
2. The counterweight translation assembly of claim 1 wherein said output end of said drive member includes a flange spline shaft, and wherein said swing arm is rotatably connected to said output end at one end thereof with a mounting hole, and wherein said mounting hole has a spline shaft sleeve, and wherein said flange spline shaft is cooperatively connected to said spline shaft sleeve.
3. The counterweight translation assembly according to claim 2, wherein a first bushing is disposed between the mounting hole and the spline bushing, and positioning holes are correspondingly disposed on the side walls of the spline bushing, the first bushing and the mounting hole, and are used for passing a pin shaft through the positioning holes, so that the spline bushing, the first bushing and the swing arm are fixedly connected.
4. The weight translation assembly according to claim 1, wherein the weight is removably connected to the swing arm by a connector.
5. The counterweight translation assembly according to claim 3, further comprising an upper connecting seat disposed on the turntable, wherein a connecting flange is disposed on the upper connecting seat, and the driving member is fixedly connected to the upper connecting seat through the connecting flange.
6. The counterweight translation assembly of claim 5 further comprising a lower connecting seat disposed on said turntable, said upper and lower connecting seats being vertically disposed in correspondence, one end of said swing arm pivotally connected to said output end being disposed between said upper and lower connecting seats.
7. The counterweight translation assembly of claim 5 wherein a second bushing is disposed between the flange spline shaft and the connecting flange, a first bearing is disposed between the connecting flange and the first bushing, and a stop washer is disposed between the first bearing and the second bushing.
8. The weight translation assembly according to claim 6, wherein the lower attachment mount includes a support plate and a race disposed on the support plate, a second bearing disposed between the first bushing and the race.
9. The counterweight translation assembly of claim 5 wherein said upper link base has a locking pin disposed thereon and said swing arm has a corresponding through hole disposed thereon, said locking pin being configured to lock and unlock said swing arm through said through hole.
10. The crane is characterized by comprising a rotary table and counterweight translation assemblies arranged on the rotary table in pairs, wherein the counterweight translation assemblies are positioned on one side, far away from a suspension arm, of the rotary table, and are symmetrically arranged.
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a counterweight translation assembly and a crane.
Background
The crane is used as a hoisting machine, and is more and more widely applied due to the advantages of convenient operation, large hoisting capacity and the like, and the hoisting process of the crane comprises the following steps: and lifting the object from the object taking place, then lifting the object to move to a designated place, and finally putting down the object to complete a lifting task.
Generally, the object lifted by the crane has a heavy weight, and the crane is prone to unstable operation due to the fact that one end (namely a lifting end) of the object lifted by the crane is too heavy in the lifting process. In order to avoid the situation, the tail end of the existing crane far away from the lifting end is provided with the counterweight assembly, namely the weight of the tail end is increased, so that the weight of the lifting end after lifting an object is balanced, the unstable situation of the crane is reduced, and the difficulty in operation caused by the unstable situation of the crane is also reduced.
At present, the crane loaded with the movable counterweight can realize backward movement of the weight center of the whole crane, so that the stability of the whole crane is improved, and the hoisting performance of the crane is improved. However, the crane with the movable counterweight occupies a large longitudinal space when the counterweight is translated, and the longitudinal space requirement during translation cannot be met for a large-tonnage crane, particularly a super-tonnage crane.
Disclosure of Invention
The invention aims to provide a counterweight translation assembly and a crane, which do not need to disassemble a counterweight and occupy extra longitudinal space when the gravity center of the counterweight is moved, can be suitable for operation in a narrow construction site, and further improve the operation efficiency.
The embodiment of the invention is realized by the following steps:
in one aspect of the embodiment of the present invention, a counterweight translation assembly is provided, which includes a driving element fixedly disposed on a turntable, an output end of the driving element is rotatably connected to one end of a swing arm, a counterweight is disposed on the swing arm, and a center of gravity of the counterweight is far away from one end of the swing arm rotatably connected to the output end.
Optionally, the output end of the driving part comprises a flange-type spline shaft, the swing arm is provided with a mounting hole at one end rotatably connected with the output end, a spline shaft sleeve is arranged in the mounting hole, and the flange-type spline shaft is connected with the spline shaft sleeve in a matched mode.
Optionally, a first shaft sleeve is arranged between the mounting hole and the spline shaft sleeve, positioning holes are correspondingly formed in the side walls of the spline shaft sleeve, the first shaft sleeve and the mounting hole, and the positioning holes are used for penetrating pin shafts, so that the spline shaft sleeve, the first shaft sleeve and the swing arm are fixedly connected.
Optionally, the counterweight is removably connected to the swing arm by a connector.
Optionally, the counterweight translation assembly further comprises an upper connecting seat arranged on the turntable, a connecting flange is arranged on the upper connecting seat, and the driving piece is fixedly connected with the upper connecting seat through the connecting flange.
Optionally, the counterweight translation assembly further comprises a lower connecting seat arranged on the turntable, the upper connecting seat and the lower connecting seat are correspondingly arranged in the vertical direction, and one end, rotatably connected with the output end, of the swing arm is arranged between the upper connecting seat and the lower connecting seat.
Optionally, a second shaft sleeve is arranged between the flange-type spline shaft and the connecting flange, a first bearing is arranged between the connecting flange and the first shaft sleeve, and a stop washer is arranged between the first bearing and the second shaft sleeve.
Optionally, the lower connecting seat includes a support plate and a seat ring disposed on the support plate, and a second bearing is disposed between the first shaft sleeve and the seat ring.
Optionally, a lock pin is arranged on the upper connecting seat, a through hole is correspondingly formed in the swing arm, and the lock pin is used for locking or unlocking the swing arm through the through hole.
In another aspect of the embodiment of the invention, a crane is provided, which includes a rotary table and counterweight translation assemblies arranged on the rotary table in pairs, the counterweight translation assemblies are located on one side of the rotary table far away from a boom, and the counterweight translation assemblies are symmetrically arranged.
The embodiment of the invention has the beneficial effects that:
according to the counterweight translation assembly and the crane provided by the embodiment of the invention, the output end of the driving part is rotatably connected with one end of the swinging arm through the driving part arranged on the rotary table, and the driving part can drive the swinging arm to rotate around one end, so that a required swinging route is realized. By arranging the counterweight on the swing arm, and the gravity center of the counterweight is far away from one end of the swing arm, which is rotatably connected with the output end of the driving part, when the swing arm changes the position, the gravity center position of the counterweight changes along with the change. Above-mentioned structure is compared with the portable counter weight that conventional adoption cylinder or hydro-cylinder directly promoted the counter weight, and the counter weight translation subassembly of this structure need not dismantle the counter weight and occupy extra vertical space when removing the counter weight focus, can be suitable for narrow construction place operation, and then promotes the operating efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a counterweight translation assembly according to an embodiment of the present invention;
FIG. 2 is a second schematic structural view of a counterweight translation assembly according to an embodiment of the present invention;
FIG. 3 is a third schematic structural view of a counterweight translation assembly according to an embodiment of the present invention;
FIG. 4 is a fourth schematic view of the counterweight translation assembly according to the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a locking pin provided in an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a swing arm according to an embodiment of the present invention.
Icon: 100-a counterweight translation assembly; 105-a turntable; 107-a limiting block; 110-a drive member; 112-flange spline shaft; 114-a second bushing; 116-a first bearing; 118-a stop washer; 120-a swing arm; 121-via holes; 122-mounting holes; 123-positioning blocks; 124-spline shaft sleeve; 126-a first bushing; 128-positioning holes; 129-pin shaft; 130-a counterweight; 140-an upper connection seat; 142-a connecting flange; 144-a locking pin; 1442-pin barrel; 1444-plug pin; 150-lower connecting seat; 152-a support plate; 154-race; 156-second bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by "inside" and "outside" are based on the directions or positional relationships shown in the drawings or the directions or positional relationships which are usually placed when the product of the present invention is used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to be referred must have a specific direction, be constructed and operated in a specific direction, and thus, cannot be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present embodiment provides a
It should be noted that, firstly, the structural form of the driving member 110 is not particularly limited in the embodiment of the present invention, as long as the required transmission of the rotational connection can be satisfied. Illustratively, the driving member 110 may be a rotary cylinder or a rotary motor, and the present embodiment is described by taking a rotary cylinder as an example, which applies hydraulic pressure in a small space to integrate very high torque, and they can be controlled accurately and easily in spite of high power, thereby facilitating control of the position of the
Secondly, when the
The
As shown in fig. 2, the output end of the driving element 110 includes a
Specifically, the
As shown in fig. 2, a
Specifically, the
Optionally, the
Specifically, as shown in fig. 1, the
As shown in fig. 2, the
Specifically, the upper connecting
As shown in fig. 2, the
Specifically, the upper and lower connecting
As shown in fig. 2, a
Specifically, the connecting
Through the
As shown in fig. 2, the lower connecting
Specifically, the
As shown in fig. 3 and 6, the upper connecting
Specifically, as shown in fig. 5, the
The embodiment of the invention also provides a crane, which comprises a rotary table 105 and
In the
The crane includes the same structure and benefits as the
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
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