CN214692981U - Crane counterweight adjusting mechanism - Google Patents

Crane counterweight adjusting mechanism Download PDF

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Publication number
CN214692981U
CN214692981U CN202120839716.6U CN202120839716U CN214692981U CN 214692981 U CN214692981 U CN 214692981U CN 202120839716 U CN202120839716 U CN 202120839716U CN 214692981 U CN214692981 U CN 214692981U
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CN
China
Prior art keywords
swing arm
counterweight
drive arrangement
connecting rod
adjustment mechanism
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Active
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CN202120839716.6U
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Chinese (zh)
Inventor
金福民
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Jiangsu Zhengdong Port Machinery Manufacyuring Co ltd
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Jiangsu Zhengdong Port Machinery Manufacyuring Co ltd
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Priority to CN202120839716.6U priority Critical patent/CN214692981U/en
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Publication of CN214692981U publication Critical patent/CN214692981U/en
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Abstract

The utility model discloses a hoist counter weight adjustment mechanism, include: revolving stage, support, jib subassembly, first flexible drive arrangement and the flexible drive arrangement of second, the jib subassembly includes first swing arm, second swing arm, connecting rod and counterweight, first swing arm pin joint is on the support, first flexible drive arrangement sets up between revolving stage and first swing arm, the front end pin joint of second swing arm and first swing arm, the connecting rod pin joint is at the rear end of second swing arm, the counterweight pin joint is between connecting rod tail end and first swing arm tail end, the flexible drive arrangement of second sets up between first swing arm and counterweight. In this way, hoist counter weight adjustment mechanism, can carry out the swing of counterweight through the flexible drive arrangement's of second flexible, change the focus position of counterweight, drive the swing of second swing arm simultaneously, in addition first flexible drive arrangement is to the rotary drive of first swing arm, carries out the balance adjustment.

Description

Crane counterweight adjusting mechanism
Technical Field
The utility model relates to a hoist technical field especially relates to a hoist counter weight adjustment mechanism.
Background
The crane is usually equipped with a counterweight system, and the counterweight system is used for balancing the cantilever and an object during hoisting, so that the damage to the structural strength of the crane is reduced.
The counterweight system usually adopts fixed cement blocks or iron blocks, and can select counterweight systems with different tonnages according to different tonnages of objects, but the operation is more complicated. In addition, utility model No. 201420404030.4 discloses a high pedestal jib crane experimental model, and cantilever crane balancing unit can adjust along with the swing of cantilever crane device, but because the difference of hoist and mount article tonnage, its cantilever crane balancing unit can not adjust alone to the article of different tonnages, needs the improvement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a hoist counter weight adjustment mechanism, realizes the nimble regulation of configuration, promotes the adaptability to hoist and mount article tonnage and hoist and mount height.
In order to solve the technical problem, the utility model discloses a technical scheme be: there is provided a crane counterweight adjustment mechanism comprising: revolving stage, support, jib subassembly, first flexible drive arrangement and the flexible drive arrangement of second, the support sets up on the revolving stage, jib subassembly includes first swing arm, second swing arm, connecting rod and weight, first swing arm pin joint is on the support, first flexible drive arrangement sets up between revolving stage and first swing arm, carries out the upset drive of first swing arm, the second swing arm is connected with the front end pin of first swing arm, and the front end of second swing arm extends to revolving stage the place ahead, the connecting rod pin joint is at the rear end of second swing arm, and the connecting rod tail end extends to the revolving stage rear, the weight pin joint is between connecting rod tail end and first swing arm tail end, the flexible drive arrangement of second sets up between first swing arm and weight, carries out the upset drive of weight.
In a preferred embodiment of the present invention, the first telescopic driving device and the second telescopic driving device are respectively hydraulic cylinders.
In a preferred embodiment of the present invention, the two ends of the weight member are respectively provided with a first pin seat.
In a preferred embodiment of the present invention, a second pin seat is disposed at a middle portion of the weight member and is pin-connected to the second telescopic driving device.
In a preferred embodiment of the present invention, a hook is suspended from a front end of the second swing arm.
In a preferred embodiment of the present invention, when the second telescopic driving device extends to drive the weight member to swing counterclockwise, the second swing arm is driven to swing counterclockwise through the connecting rod.
The utility model has the advantages that: the utility model provides a hoist counter weight adjustment mechanism can carry out the swing of counterweight through the flexible drive arrangement's of second flexible, changes the focus position of counterweight, drives the swing of second swing arm simultaneously, changes the focus position of second swing arm and article, and in addition first flexible drive arrangement carries out the balance adjustment to the rotary drive of first swing arm, and the flexible operation has promoted the adaptability to hoist and mount article tonnage and hoist and mount height, and application scope is extensive.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic structural diagram of a preferred embodiment of a counterweight adjustment mechanism of a crane according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention includes:
the crane counterweight adjustment mechanism shown in fig. 1 comprises: revolving stage 1, support 5, jib subassembly, first flexible drive arrangement 9 and the flexible drive arrangement 4 of second, support 5 sets up on revolving stage 1, and in this embodiment, support 5 can adopt the portal frame, sound construction.
The jib assembly includes first swing arm 6, second swing arm 8, connecting rod 7 and counterweight 3, and 6 pin joints of first swing arm are on support 5, and first flexible drive arrangement 9 sets up between revolving stage and first swing arm 6, carries out the upset drive of first swing arm 6, and is specific, carries out the swing of first swing arm 6 through the flexible swing that carries out of first flexible drive arrangement 9, changes 6 front end position heights of first swing arm, promotes the adaptability to the hoist and mount height.
As shown in fig. 1, the second swing arm 8 is pin-connected with the front end of the first swing arm 6, the front end of the second swing arm 8 extends to the front of the turntable 1, a lifting hook 10 is suspended at the front end of the second swing arm 8, and the lifting hook 10 can be lifted through a steel wire rope, so that the lifting of an article is realized.
In this embodiment, with connecting rod 7 pin joint at the rear end of second swing arm 8, and the connecting rod 7 tail end extends to the revolving stage rear, the pin joint of counterweight 3 is between connecting rod 7 tail end and 6 tail ends of first swing arm, and 3 both ends of counterweight are provided with first round pin base 11 respectively, conveniently with being connected of connecting rod 7 tail end and 6 tail ends of first swing arm for first swing arm 6, second swing arm 8, connecting rod 7 and counterweight 3 form four-bar linkage.
The second telescopic driving device 4 is arranged between the first swing arm 6 and the counterweight 3, and the counterweight 3 is driven to turn over by the extension and contraction of the second telescopic driving device 4. In this embodiment, connecting rod 7 is located the top of first swing arm 6, and when the flexible drive arrangement 4 of second extended and driven counterweight 3 anticlockwise upset, connecting rod 7 pulling second swing arm 8 also carried out the anticlockwise upset, and 8 front ends of second swing arm follow the in-process of upwards swinging from the bottom, carry out the antedisplacement of lifting hook 10 and focus, and at this moment, 3 centrobarics of counterweight are backward to balanced regulation has been realized.
In this embodiment, the middle of the weight member 3 is provided with the second pin seat 2 pinned with the second telescopic driving device 4, so that the assembly is convenient. The counterweight 3 can be a metal cylinder with a solid structure and short length, but has large weight, and the gravity center during swinging can be flexibly adjusted.
The first telescopic driving device 9 and the second telescopic driving device 4 respectively adopt hydraulic cylinders, can be controlled to stretch out and draw back through the electromagnetic valve and the corresponding controller, respectively carry out the swing adjustment of the first swing arm 6 and the counterweight 3, can meet the hoisting height of different articles, and can also carry out balance adjustment when hoisting different tonnage articles, thereby improving the structural stability.
To sum up, the utility model discloses a hoist counter weight adjustment mechanism who points out, the structure is succinct, and the counter weight is adjusted in a flexible way, and is balanced effectual.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the present invention, or directly or indirectly applied to other related technical fields, and all included in the same way in the protection scope of the present invention.

Claims (6)

1. A crane counterweight adjustment mechanism, comprising: revolving stage, support, jib subassembly, the flexible drive arrangement of first flexible drive arrangement and second, the support sets up on the revolving stage, jib subassembly includes first swing arm, second swing arm, connecting rod and weight, first swing arm pin joint is on the support, first flexible drive arrangement sets up between revolving stage and first swing arm, carries out the upset drive of first swing arm, the second swing arm is connected with the front end pin of first swing arm, and the front end of second swing arm extends to revolving stage the place ahead, the connecting rod adopts the pin joint mode to set up the rear end at the second swing arm, and the connecting rod tail end extends to the revolving stage rear, the weight pin joint is between connecting rod tail end and first swing arm tail end, the flexible drive arrangement of second sets up between first swing arm and weight, carries out the upset drive of weight.
2. The crane counterweight adjustment mechanism of claim 1 wherein said first and second telescopic drives each comprise a hydraulic cylinder.
3. The crane counterweight adjustment mechanism of claim 1 wherein said counterweight member is provided at each end with a first pin boss.
4. The crane counterweight adjustment mechanism of claim 1 wherein a second pin seat is provided in the middle of the counterweight and pinned to a second telescopic drive.
5. The crane counterweight adjustment mechanism of claim 1 wherein a hook is suspended from the front end of said second swing arm.
6. The crane counterweight adjustment mechanism of claim 1 wherein the second telescopic drive means extends to drive the counterweight member to swing counterclockwise and drives the second swing arm to swing counterclockwise via the link.
CN202120839716.6U 2021-04-23 2021-04-23 Crane counterweight adjusting mechanism Active CN214692981U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120839716.6U CN214692981U (en) 2021-04-23 2021-04-23 Crane counterweight adjusting mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120839716.6U CN214692981U (en) 2021-04-23 2021-04-23 Crane counterweight adjusting mechanism

Publications (1)

Publication Number Publication Date
CN214692981U true CN214692981U (en) 2021-11-12

Family

ID=78533103

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120839716.6U Active CN214692981U (en) 2021-04-23 2021-04-23 Crane counterweight adjusting mechanism

Country Status (1)

Country Link
CN (1) CN214692981U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A crane counterweight adjustment mechanism

Granted publication date: 20211112

Pledgee: Bank of China Limited Changshu branch

Pledgor: JIANGSU ZHENGDONG PORT MACHINERY MANUFACYURING Co.,Ltd.

Registration number: Y2024980024260