CN103241665A - Automatic-balance auxiliary device of lifting arm frame - Google Patents
Automatic-balance auxiliary device of lifting arm frame Download PDFInfo
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- CN103241665A CN103241665A CN2013101833484A CN201310183348A CN103241665A CN 103241665 A CN103241665 A CN 103241665A CN 2013101833484 A CN2013101833484 A CN 2013101833484A CN 201310183348 A CN201310183348 A CN 201310183348A CN 103241665 A CN103241665 A CN 103241665A
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- equalizing
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Abstract
The invention discloses an automatic-balance auxiliary device of a lifting arm frame. The automatic-balance auxiliary device comprises two parallel balance-beam longitudinal beams between which a balance-beam cross beam is connected; a basic balance block is connected between the same ends of the two balance-beam longitudinal beams. The inner sides of the balance-beam longitudinal beams are vertically connected with an upper sliding seat and a lower sliding seat along the longitudinal direction; the two ends of the lower sliding seat are respectively connected to the basic balance block and the balance-beam cross beam; the length of the upper sliding seat is less than that of the lower sliding seat; an auxiliary balance block and a sliding-shaft assembly which are coaxial are connected between two side sliding grooves; a sliding shaft on the auxiliary balance block is positioned in the sliding grooves; and two hydraulic oil cylinders are vertically connected between the adjacent side surface of the auxiliary balance block and the balance-beam cross beam, and are symmetrically distributed at the two ends of the auxiliary balance block. The automatic-balance auxiliary device disclosed by the invention has the advantages that the auxiliary balance block is driven to slide in the sliding grooves between the balance-beam longitudinal beams by using a special hydraulic control valve to control the expansion and retraction of the hydraulic cylinders, so that the lifting arm frame is in a balanced state at the needed amplitude position.
Description
Technical field
The present invention relates to a kind of elevator boom rack, be specifically related to a kind of self-equalizing auxiliary device of elevator boom rack.
Background technology
The high pedestal jib crane elevator boom rack equilibrium system that is used on harbour, harbour, goods yard and the boats and ships mainly is made up of equalizing bar, balance block at present, and balance block is fixed on equalizing bar one end.The weight of increase and decrease balance block realized when the balance position of elevator boom rack was mainly installed by hoisting crane, but this kind elevator boom rack balance mode erecting stage bothers when regulating very much, must repeatedly regulate, and can only guarantee that elevator boom rack is in a basic balance in some or several (general three positions) position.But a plurality of amplitudes of hoisting crane in the amplitude range that the elevator boom rack design allows are difficult to guarantee that elevator boom rack all is in state of equilibrium when working.The unbalance stress of whole hoisting crane when if elevator boom rack is in non-equilibrium state, less stable, parts such as the swing type mechanism of hoisting crane, door frame are in the unbalance loading state for a long time, the luffing pulling force of luffing devices such as luffing tooth bar or luffing steel rope increases in the luffing mechanism simultaneously, corresponding luffing motor power (output) also increases, and greatly reduces the service life of whole hoisting crane and has wasted the energy.
Summary of the invention
The object of the present invention is to provide a kind of can be according to the variation of elevator boom rack amplitude and load and regulate the auxiliary device of elevator boom rack balance automatically.
This elevator boom rack self-equalizing auxiliary device provided by the invention, comprise two equalizing bar longerons that are parallel to each other, be connected with the equalizing bar crossbeam between the two equalizing bar longerons, be connected with in a basic balance between the same end of two equalizing bar longerons. between described in a basic balance and the equalizing bar crossbeam, vertically be connected with in the inboard of equalizing bar longeron along its upper saddle and lower slider longitudinally, the two ends of lower slider are connected with the equalizing bar crossbeam in a basic balance respectively, and the length of upper saddle is less than lower slider length; Be equipped with the auxiliary balance piece of coaxial line and the assembly parts of slide-bar between the chute of both sides, the slide-bar at auxiliary balance piece two ends is positioned at chute; Vertically be connected with two hydraulic rams between the adjacent side of auxiliary balance piece and equalizing bar crossbeam, they are symmetrically arranged in the two ends of auxiliary balance piece.
The cross-sectional plane of described upper saddle and lower slider is rectangle.
The shape of cross section of described slide-bar is rectangle, and the chute that forms between it and the upper and lower slide is free-running fit.
The present invention has set up between two equalizing bar longerons and can be connected with hydraulic ram between auxiliary balance piece and equalizing bar crossbeam along the auxiliary balance piece that slides in its side chute.By the stretching to drive in the chute of auxiliary balance piece between the equalizing bar longeron and slide of the dedicated hydraulic control cock on hydraulic power unit control hydraulic ram, the moment size that namely changes the relative crane rotation of auxiliary balance piece center is come the elevator boom rack of any amplitude position is realized balance.Compare with prior art, no matter all can make elevator boom rack at needed amplitude position state of equilibrium automatically according to the variation of elevator boom rack amplitude under hoisting crane zero load or the fully laden.The installation of auxiliary balance piece and hydraulic ram is simple, and it is convenient to safeguard, only elevator boom rack need be got final product by in a basic balance basic adjustment during the hoisting crane Installation and Debugging.Can reduce the luffing pulling force of luffing device such as luffing tooth bar or luffing steel rope in the luffing mechanism greatly, prolong hoisting crane complete machine service life, also reduce the luffing power of electric motor simultaneously, save the energy.
Description of drawings
Fig. 1 looks scheme drawing for master of the present invention.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is the A-A cross-sectional schematic among Fig. 2.
Fig. 4 is the B-B cross-sectional schematic among Fig. 3.
Fig. 5 is use view of the present invention.
The specific embodiment
To shown in Figure 5, this elevator boom rack self-equalizing auxiliary device provided by the invention comprises two parallel equalizing bar longerons 2, vertically is connected with an equalizing bar crossbeam 6 between them as Fig. 1, and their end is connected with in a basic balance 1.The inboard of equalizing bar longeron 2 vertically is connected with upper saddle 7 and the lower slider 8 that vertically, is parallel to each other along it, and the two ends of lower slider 8 are respectively to the side of in a basic balance 1 and equalizing bar crossbeam 6.The length of upper saddle 7 is less than the length of lower slider 8, and the one end is in a basic balance 1 side extremely, is convenient to the loading and unloading of slide-bar 3 like this.Vertically be connected with the assembly parts of slide-bar 3 and auxiliary balance piece 4 between the upper saddle 7 of two equalizing bar longerons 2, the lower slider 8, slide-bar 3 is connected on the auxiliary balance piece 4, and is positioned on its longitudinal center line.The shape of cross section of slide-bar 3 is rectangle, and the chute that forms between it and upper saddle 7 and the lower slider 8 is free-running fit.Vertically be connected with two hydraulic rams 5 between the adjacent side of auxiliary balance piece 4 and equalizing bar crossbeam 6, they are symmetrically arranged in the two ends of auxiliary balance piece 4, and hydraulic ram 5 is connected with hydraulic power unit 10.
During installation, equalizing bar longeron 2 and Shears 9 is hinged, the hinge hole of equalizing bar longeron 2 one ends is hinged by lower link bar 13 and elevator boom rack 14, near setting angle sensor 15 lower link point of elevator boom rack 14, hydraulic ram 5 is connected to hydraulic power unit 10, the control end of the dedicated hydraulic control cock that angular transducer 15 and control hydraulic ram 5 is flexible is connected to processing controller, can realize regulating automatically the function of elevator boom rack 14 balances.
Principle of work is as follows: angular transducer 15 detects the variation of elevator boom rack 14 amplitude sizes, treated controller is regulated its valve port opening that links to each other with auxiliary balance piece 4 two ends hydraulic rams 5 after handling again automatically according to the elevator boom rack 15 changes in amplitude values that detect by the dedicated hydraulic control cock in the hydraulic power unit 10 size, thereby the stroke of control auxiliary balance piece 4 two ends hydraulic rams 5 makes auxiliary balance piece 4 sway on equalizing bar longeron 2.Namely changing auxiliary balance piece 4 comes the elevator boom rack 14 of any amplitude position is realized balance with respect to the size of crane rotation central moment.
No matter all can be according to the variation of elevator boom rack 14 amplitudes under this hoisting crane zero load of this elevator boom rack self-equalizing auxiliary device or the fully laden and make elevator boom rack 14 at needed amplitude position state of equilibrium automatically.So only elevator boom rack 14 need be got final product by in a basic balance 1 basic adjustment during the hoisting crane Installation and Debugging.As shown in Figure 5, auxiliary balance piece 4 is positioned at the right-hand member of equalizing bar longeron 2 when elevator boom rack 14 is in minimum radius.If then auxiliary balance piece 4 is positioned at the left end of equalizing bar longeron 2 when elevator boom rack 14 is in amplitude peak.
Claims (3)
1. elevator boom rack self-equalizing auxiliary device, comprise two equalizing bar longerons that are parallel to each other, be connected with the equalizing bar crossbeam between the two equalizing bar longerons, be connected with in a basic balance between the same end of two equalizing bar longerons, it is characterized in that: between described in a basic balance and the equalizing bar crossbeam, vertically be connected with in the inboard of equalizing bar longeron along its upper saddle and lower slider longitudinally, in a basic balance and equalizing bar crossbeam, the length of upper saddle is less than lower slider length respectively at the two ends of lower slider; Be equipped with the auxiliary balance piece of coaxial line and the assembly parts of slide-bar between the chute of both sides, the slide-bar at auxiliary balance piece two ends is positioned at chute; Vertically be connected with two hydraulic rams between the adjacent side of auxiliary balance piece and equalizing bar crossbeam, they are symmetrically arranged in the two ends of auxiliary balance piece.
2. elevator boom rack self-equalizing auxiliary device as claimed in claim 1, it is characterized in that: the cross-sectional plane of described upper saddle and lower slider is rectangle.
3. elevator boom rack self-equalizing auxiliary device as claimed in claim 1, it is characterized in that: the shape of cross section of described slide-bar is rectangle, the chute that forms between it and the upper and lower slide is free-running fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101833484A CN103241665A (en) | 2013-05-17 | 2013-05-17 | Automatic-balance auxiliary device of lifting arm frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101833484A CN103241665A (en) | 2013-05-17 | 2013-05-17 | Automatic-balance auxiliary device of lifting arm frame |
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| Publication Number | Publication Date |
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| CN103241665A true CN103241665A (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101833484A Pending CN103241665A (en) | 2013-05-17 | 2013-05-17 | Automatic-balance auxiliary device of lifting arm frame |
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| CN (1) | CN103241665A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108584725A (en) * | 2018-06-13 | 2018-09-28 | 桂平市大众船舶修造厂 | A kind of bulk freighter handling apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86202467U (en) * | 1986-04-17 | 1987-10-03 | 赵志鹏 | Hydraulic conter-balancer for auto-balancing of crane truck |
| EP1916220A1 (en) * | 2006-10-27 | 2008-04-30 | Manitowoc Crane Companies, Inc. | Mobile lift crane with variable position counterweight |
| CN201703999U (en) * | 2010-05-25 | 2011-01-12 | 南京工程学院 | Safe tower crane |
| CN102229415A (en) * | 2011-06-30 | 2011-11-02 | 三一汽车起重机械有限公司 | Crane and movable-type balance weight mechanism thereof |
| CN203237940U (en) * | 2013-05-17 | 2013-10-16 | 湖南中铁五新重工有限公司 | Autobalance auxiliary device of jib frame |
-
2013
- 2013-05-17 CN CN2013101833484A patent/CN103241665A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86202467U (en) * | 1986-04-17 | 1987-10-03 | 赵志鹏 | Hydraulic conter-balancer for auto-balancing of crane truck |
| EP1916220A1 (en) * | 2006-10-27 | 2008-04-30 | Manitowoc Crane Companies, Inc. | Mobile lift crane with variable position counterweight |
| CN201703999U (en) * | 2010-05-25 | 2011-01-12 | 南京工程学院 | Safe tower crane |
| CN102229415A (en) * | 2011-06-30 | 2011-11-02 | 三一汽车起重机械有限公司 | Crane and movable-type balance weight mechanism thereof |
| CN203237940U (en) * | 2013-05-17 | 2013-10-16 | 湖南中铁五新重工有限公司 | Autobalance auxiliary device of jib frame |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108584725A (en) * | 2018-06-13 | 2018-09-28 | 桂平市大众船舶修造厂 | A kind of bulk freighter handling apparatus |
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Application publication date: 20130814 |