CN216235754U

CN216235754U - Folding arm type super-lifting counterweight amplitude changing device for crawler crane

Info

Publication number: CN216235754U
Application number: CN202121830013.3U
Authority: CN
Inventors: 吴琼; 董广民; 张建军; 陈昶宏
Original assignee: Liaoning Fudao Mechanical Equipment Co ltd
Current assignee: Liaoning Fudao Mechanical Equipment Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-04-08
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a folding arm type super-lifting counterweight amplitude changing device for a crawler crane, which comprises a rack and a counterweight block, wherein four groups of self-locking universal wheels are fixedly arranged at the bottom of the rack through bolts, hinged seats are fixedly connected to the side surface and the top of the rack, a second clamping block is fixedly connected to the inner wall surface of the rack, and lower clamping grooves are formed in the edges of two sides of the bottom of the counterweight block. This a folding arm-type super-lift counter weight becomes width of cloth device for crawler crane is used for the joint respectively in the last draw-in groove and the lower draw-in groove of balancing weight both sides through setting up first fixture block and second fixture block, realize the fixed connection between every adjacent two sets of balancing weights with this, be convenient for assemble the configuration piece through slider and spout, and connection stability is high, through the screw rod, the effect of locating hole and connecting hole, the fixed action of realization to first fixture block, and have limiting displacement to the multiunit balancing weight through the stop lever, this a folding arm-type super-lift counter weight becomes width of cloth device for crawler crane assembles simply, safety, stability is high.

Description

Folding arm type super-lifting counterweight amplitude changing device for crawler crane

Technical Field

The utility model relates to the technical field of cranes, in particular to a folding arm type super-lift counterweight amplitude changing device for a crawler crane.

Background

The crawler crane is a truss type arm frame structure crane adopting a crawler traveling chassis. The super-lift counterweight amplitude changing device on the crawler crane consists of a super-lift mast of the crawler crane, a super-lift counterweight pulling plate, a horizontal supporting device of the super-lift counterweight and a super-lift counterweight block. The super-lift counterweight amplitude variation function is also a necessary basic function of the large crawler crane, and the structural form of the amplitude variation device determines the convenience of realizing the amplitude variation function, thereby determining the operability of the crane. Wherein, present super-lift counterweight block when using, it is inconvenient to adjust to exist, and the multiunit balancing weight is connected loaded down with trivial details, and stability is not high, easily appears the problem that drops between the balancing weight, has the potential safety hazard.

The super-lift counterweight luffing system and the crane disclosed in the prior art have the advantages that the application number CN201210229336.6 is that a power mechanism can drive a lifting piece and drive a super-lift counterweight to ascend or descend along the vertical direction at least relative to a lifting base body through the lifting piece, so that the luffing operation time and labor of the super-lift counterweight can be saved, but the super-lift counterweight of the super-lift counterweight luffing system and the crane has the problem of inconvenience in adjustment when in use, and the foldable arm type super-lift counterweight luffing device for the crawler crane is designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a folding arm type super-lift counterweight amplitude changing device for a crawler crane, which aims to solve the problems that the prior super-lift counterweight block proposed in the background technology is inconvenient to adjust, a plurality of groups of counterweight blocks are complicated to connect, the stability is not high, and the counterweight blocks are easy to fall off.

In order to achieve the above purpose, the utility model provides the following technical scheme, a folding arm type super-lift counterweight amplitude changing device for a crawler crane comprises a frame and a counterweight block, wherein four groups of self-locking universal wheels are fixedly arranged at the bottom of the frame through bolts, hinged seats are fixedly connected with the side surface and the top of the frame, a second fixture block is fixedly connected with the inner wall surface of the frame, lower clamping grooves are respectively arranged at the two side edges of the bottom of the counterweight block, upper clamping grooves are respectively arranged at the two side edges of the top of the counterweight block, a first fixture block is connected with the lower clamping groove and the upper clamping groove which are close to each other at one side, the lower clamping groove and the upper clamping groove which are close to each other at the other side are sleeved on the second fixture block, two groups of connecting holes are penetratingly arranged in the first fixture block, positioning holes are arranged in the counterweight block, a screw rod is connected in the first connecting holes and the positioning holes through a thread structure, and two groups of slide blocks are fixedly connected with the top of the counterweight block, two sets of chutes are formed in the bottom of the balancing weight, the edge of the top of the rack is communicated with a connecting hole, and a limiting rod is connected in the second connecting hole through a threaded structure.

Preferably, the first fixture block and the second fixture block are in a C-shaped structure with a symmetrical shape, and the combined shape of the lower clamping groove and the upper clamping groove is matched with the shapes of the first fixture block and the second fixture block.

Preferably, the second fixture block is provided with a plurality of groups at equal intervals along the extending direction of the height of the rack.

Preferably, two groups of the positioning holes are arranged in each group of the counterweight blocks, and the two groups of the positioning holes are respectively communicated with the inner parts of the upper clamping groove and the lower clamping groove.

Preferably, the slider and the side face of the sliding groove are of a T-shaped structure matched with each other, and the slider and the sliding groove are arranged along the length extending direction of the balancing weight.

Compared with the prior art, the utility model has the beneficial effects that: this a folding arm-type super-lift counter weight becomes width of cloth device for crawler crane is used for the joint respectively in the last draw-in groove and the lower draw-in groove of balancing weight both sides through setting up first fixture block and second fixture block, realize the fixed connection between every adjacent two sets of balancing weights with this, be convenient for assemble the configuration piece through slider and spout, and connection stability is high, through the screw rod, the effect of locating hole and connecting hole, the fixed action of realization to first fixture block, and have limiting displacement to the multiunit balancing weight through the stop lever, this a folding arm-type super-lift counter weight becomes width of cloth device for crawler crane assembles simply, safety, stability is high.

Drawings

FIG. 1 is a front structural cross-sectional view of a folding arm type super-lift counterweight luffing device for a crawler crane according to the present invention;

FIG. 2 is a schematic structural diagram of the front side of a folding arm type super-lift counterweight luffing device for a crawler crane according to the present invention;

FIG. 3 is a schematic view of a partial side view of a folding arm type super-lift counterweight luffing device for a crawler crane according to the present invention;

FIG. 4 is an enlarged view of the folding arm super lift counterweight luffing apparatus of the present invention at A of FIG. 1;

FIG. 5 is a schematic structural diagram of a first clamping block of the folding arm type super-lift counterweight luffing device for a crawler crane according to the present invention;

FIG. 6 is a schematic structural diagram of a second fixture block of the folding arm type super-lift counterweight luffing device for a crawler crane according to the present invention.

In the figure: 1. frame, 2, auto-lock universal wheel, 3, articulated seat, 4, balancing weight, 5, lower draw-in groove, 6, last draw-in groove, 7, first fixture block, 8, second fixture block, 9, first connecting hole, 10, locating hole, 11, screw rod, 12, slider, 13, spout, 14, second connecting hole, 15, gag lever post.

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 of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1-6, the present invention provides a technical solution: a folding arm type super-lifting counterweight amplitude-changing device for a crawler crane comprises a frame 1 and a counterweight block 4, wherein four groups of self-locking universal wheels 2 are fixedly arranged at the bottom of the frame 1 through bolts, hinged seats 3 are fixedly connected to the side surface and the top of the frame 1, a second clamping block 8 is fixedly connected to the inner wall surface of the frame 1, lower clamping grooves 5 are respectively arranged at the two side edges of the bottom of the counterweight block 4, upper clamping grooves 6 are respectively arranged at the two side edges of the top of the counterweight block 4, a first clamping block 7 is connected in the lower clamping groove 5 and the upper clamping groove 6 which are close to each other at one side, the lower clamping groove 5 and the upper clamping groove 6 which are close to each other at the other side are sleeved on the second clamping block 8, the first clamping block 7 and the second clamping block 8 are in a C-shaped structure with a symmetrical shape, the combined shape of the lower clamping groove 5 and the upper clamping groove 6 is matched with the shape of the first clamping block 7 and the second clamping block 8, when a plurality of counterweight blocks 4 are stacked up and down, the upper clamping groove 6 and the lower clamping groove 5 of the upper and lower groups of adjacent balancing weights 4 form a C-shaped structure, the limiting and fixing effect on the two groups of balancing weights 4 can be realized through the action of the first clamping block 7 and the second clamping block 8, the second clamping block 8 is equidistantly provided with a plurality of groups along the height extension direction of the frame 1, the distance between the two adjacent groups of second clamping blocks 8 is matched with the height of the balancing weights 4, two groups of first connecting holes 9 are communicated in the first clamping block 7, positioning holes 10 are arranged in the balancing weights 4, the first connecting holes 9 and the positioning holes 10 are connected with screw rods 11 through thread structures, the positioning holes 10 are arranged in two groups of balancing weights 4, the two groups of positioning holes 10 are respectively communicated with the upper clamping groove 6 and the lower clamping groove 5 and are connected with the first connecting holes 9 and the positioning holes 10 through the screw rods 11, the first clamping block 7 can be fixed in the upper clamping groove 6 and the lower clamping groove 5, thereby realize two sets of balancing weights 4 and the fixed connection of first fixture block 7, two sets of sliders 12 of 4 top fixedly connected with of balancing weight, two sets of spout 13 have been seted up in 4 bottoms of balancing weight, slider 12 is assorted "T" type structure with spout 13 side, and slider 12 all sets up along 4 length extending direction of balancing weight with spout 13, effect through slider 12 and spout 13, improve the stability of being connected between

multiunit balancing weight

4, 1 top edge of frame link up and has seted up second connecting hole 14, be connected with gag lever post 15 through the helicitic texture in the second connecting hole 14, gag lever post 15 has limiting displacement to the side of multiunit balancing weight 4, frame 1 is "C" type structure, and frame 1 bottom has welded a set of balancing weight 4.

The working principle is as follows: when the folding arm type super-lift counterweight amplitude changing device for the crawler crane is used, according to the working requirement of the actual super-lift counterweight, the corresponding quantity of counterweight blocks 4 are prepared, the sliding block 12 is connected into the sliding groove 13 in a sliding way, thereby realizing the connection between every two groups of balancing weights 4, assembling a plurality of groups of balancing weights 4 on the second fixture block 8, so that the second clamping block 8 is connected in the upper clamping groove 6 and the lower clamping groove 5 at one side of the balancing weight 4, the first clamping block 7 is connected in the upper clamping groove 6 and the lower clamping groove 5 at the other side of the balancing weight 4, the screw rod 11 is connected in the first connecting hole 9 and the positioning hole 10 through rotation, therefore, the fixed connection among the groups of balancing weights 4 is realized, the limiting rod 15 is rotated to be positioned on one side of the groups of balancing weights 4 close to the first clamping block 7, and the working process of the folding arm type super-lifting counterweight amplitude changing device for the crawler crane is realized.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a folding arm-type super-lift counter weight becomes width of cloth device for crawler crane, includes frame (1) and balancing weight (4), frame (1) bottom is equipped with four auto-lock universal wheels (2) of group through the bolt fastening, its characterized in that: the side and the top of the frame (1) are both fixedly connected with a hinged seat (3), the inner wall surface of the frame (1) is fixedly connected with a second clamping block (8), the edges of the two sides of the bottom of the balancing weight (4) are both provided with lower clamping grooves (5), the edges of the two sides of the top of the balancing weight (4) are both provided with upper clamping grooves (6), one side of the lower clamping grooves (5) and the upper clamping grooves (6) which are close to each other are connected with a first clamping block (7) in an interconnecting way, the other side of the lower clamping grooves (5) and the upper clamping grooves (6) which are close to each other are sleeved on the second clamping block (8), two groups of first connecting holes (9) are arranged in the first clamping blocks (7) in a communicating way, the balancing weight (4) is provided with a positioning hole (10), the first connecting holes (9) and the positioning hole (10) are connected with a screw rod (11) through a thread structure, and the top of the balancing weight (4) is fixedly connected with two groups of sliding blocks (12), two sets of sliding grooves (13) are formed in the bottom of the balancing weight (4), a second connecting hole (14) is formed in the edge of the top of the rack (1) in a penetrating mode, and a limiting rod (15) is connected into the second connecting hole (14) through a threaded structure.

2. The folding arm super lift counterweight luffing apparatus for crawler cranes of claim 1, wherein: the first clamping block (7) and the second clamping block (8) are of C-shaped structures in symmetrical shapes, and the combined shape of the lower clamping groove (5) and the upper clamping groove (6) is matched with the shapes of the first clamping block (7) and the second clamping block (8).

3. The folding arm super lift counterweight luffing apparatus for crawler cranes of claim 1, wherein: and a plurality of groups of second clamping blocks (8) are equidistantly arranged along the height extension direction of the rack (1).

4. The folding arm super lift counterweight luffing apparatus for crawler cranes of claim 1, wherein: the positioning holes (10) are arranged in two groups in each group of balancing weights (4), and the two groups of positioning holes (10) are communicated with the inner parts of the upper clamping groove (6) and the lower clamping groove (5) respectively.

5. The folding arm super lift counterweight luffing apparatus for crawler cranes of claim 1, wherein: slider (12) and spout (13) side are assorted "T" type structure, and slider (12) and spout (13) all set up along balancing weight (4) length extending direction.