CN103359636A - Boom gravity center compensation device for single-boom portal crane - Google Patents
Boom gravity center compensation device for single-boom portal crane Download PDFInfo
- Publication number
- CN103359636A CN103359636A CN 201210084197 CN201210084197A CN103359636A CN 103359636 A CN103359636 A CN 103359636A CN 201210084197 CN201210084197 CN 201210084197 CN 201210084197 A CN201210084197 A CN 201210084197A CN 103359636 A CN103359636 A CN 103359636A
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- China
- Prior art keywords
- boom
- compensation device
- gravity center
- crane
- portal crane
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention relates to a boom gravity center compensation device for a single-boom portal crane. The boom gravity center compensation device is characterized by comprising a weight box (1), a balance beam (2), a hinge shaft (3) and a pull rod (4), wherein the balance beam (2) is mounted on an A-frame of the portal crane; the weight box (1) is mounted at one end of the balance beam (2), the other end of the balance beam (2) is connected with one end of the pull rod (4) through the hinge shaft (3) and is rotatable; the other end of the pull rod (4) is connected with the boom of the crane. According to the boom gravity center compensation device, based on the lever principle, the oscillation of the boom generated when the portal crane changes the amplitude is utilized to drive the compensation device to oscillate, so as to compensate the ascending or descending potential energy variation of the boom gravity center, and accordingly, the driving power of a luffing mechanism is greatly reduced, and the use efficiency is also improved.
Description
Technical field
The present invention relates to a kind of single-cantilever-crane gantry crane luffing mechanism and boom system.Belong to the elevator machinery technical field.
Background technology
Single-cantilever-crane gantry crane is applicable to carry out the Ship Building and Repairing enterprise of breakbulk hoisting operation, is installed on harbour or the wing wall track, serves the ship in harbour, its peripheral waters, floating drydock.Owing to adopting the form of single arm support, realizing the luffing action by swinging jib at work.Its center of gravity was wanted lifting when jib swung, and when amount of decrease, needed to consume larger driving power; When amplification, can cause larger inertia loading, affect in-use performance.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of center of gravity compensation device is provided, this device can compensate span winch in amplitude changing process, the potential variation that the lifting of jib center of gravity brings.
The object of the present invention is achieved like this: a kind of single-cantilever-crane gantry crane jib center of gravity compensation device, it comprises weight box, equalizing bar, hinge and pull bar, described equalizing bar is installed on the Shears of span winch, described weight box is installed on an end of equalizing bar, one end of the other end of equalizing bar and pull bar passes through stud connection, and rotatable, the described pull bar other end links to each other with crane arm support.
Compared with prior art, the invention has the beneficial effects as follows:
Single-cantilever-crane gantry crane jib center of gravity compensation device of the present invention, utilize lever principle, the swing of jib during by the span winch luffing, drive the swing of this device, the rising of compensation jib center of gravity or the potential variation of decline, greatly reduce the driving power of luffing mechanism, also improved service efficiency.
Description of drawings
Fig. 1 is front view of the present invention.
Fig. 2 is the birds-eye view of Fig. 1.
Wherein:
Equalizing bar 2
Hinge 3
The specific embodiment
Referring to Fig. 1, the present invention relates to a kind of single-cantilever-crane gantry crane jib center of gravity compensation device, comprise weight box 1, equalizing bar 2, hinge 3 and pull bar 4, equalizing bar 2 is installed on the span winch Shears, weight box 1 is installed on an end of equalizing bar 2, the other end of equalizing bar 2 is connected by hinge 3 with an end of pull bar 4 and is rotatable, and the other end of pull bar 4 links to each other with crane arm support.Utilize lever principle, the swing of jib drives the swing of this device during by the span winch luffing, the rising of compensation jib center of gravity or the potential variation of decline.
Claims (1)
1. single-cantilever-crane gantry crane jib center of gravity compensation device, it is characterized in that it comprises weight box (1), equalizing bar (2), hinge (3) and pull bar (4), described equalizing bar (2) is installed on the Shears of span winch, described weight box (1) is installed on an end of equalizing bar (2), the other end of equalizing bar (2) is connected by hinge (3) with an end of pull bar (4), and rotatable, described pull bar (4) other end links to each other with crane arm support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210084197 CN103359636A (en) | 2012-03-28 | 2012-03-28 | Boom gravity center compensation device for single-boom portal crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210084197 CN103359636A (en) | 2012-03-28 | 2012-03-28 | Boom gravity center compensation device for single-boom portal crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103359636A true CN103359636A (en) | 2013-10-23 |
Family
ID=49362034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210084197 Pending CN103359636A (en) | 2012-03-28 | 2012-03-28 | Boom gravity center compensation device for single-boom portal crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103359636A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108883916A (en) * | 2015-11-24 | 2018-11-23 | 特雷克斯全球有限公司 | The main boom of relative movement formula crane bends the mobilecrane of its extension |
| US10640339B2 (en) | 2015-11-10 | 2020-05-05 | Terex Global Gmbh | Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane |
| US10647553B2 (en) | 2015-11-10 | 2020-05-12 | Terex Global Gmbh | Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane |
-
2012
- 2012-03-28 CN CN 201210084197 patent/CN103359636A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10640339B2 (en) | 2015-11-10 | 2020-05-05 | Terex Global Gmbh | Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane |
| US10647553B2 (en) | 2015-11-10 | 2020-05-12 | Terex Global Gmbh | Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane |
| CN108883916A (en) * | 2015-11-24 | 2018-11-23 | 特雷克斯全球有限公司 | The main boom of relative movement formula crane bends the mobilecrane of its extension |
| CN108883916B (en) * | 2015-11-24 | 2020-01-03 | 特雷克斯全球有限公司 | Mobile crane with bending of its extension relative to the main jib of the mobile crane |
| US10640340B2 (en) | 2015-11-24 | 2020-05-05 | Terex Global Gmbh | Mobile crane for angling a main jib extension relative to a main jib of a mobile crane |
| US10781083B2 (en) | 2015-11-24 | 2020-09-22 | Terex Global Gmbh | Mobile crane and method for angling a main boom extension in relation to a main boom of a mobile crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131023 |