CN110127542A - A kind of Combined balance weight mechanism and its application method for engineering machinery - Google Patents
A kind of Combined balance weight mechanism and its application method for engineering machinery Download PDFInfo
- Publication number
- CN110127542A CN110127542A CN201910446769.9A CN201910446769A CN110127542A CN 110127542 A CN110127542 A CN 110127542A CN 201910446769 A CN201910446769 A CN 201910446769A CN 110127542 A CN110127542 A CN 110127542A
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- CN
- China
- Prior art keywords
- counterweight
- overturning
- connecting rod
- master winch
- hinged
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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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a kind of Combined balance weight mechanisms and its application method for engineering machinery, belong to engineering machinery field.The balance weight mechanism includes fixed counterweight and overturning counterweight；The fixed counterweight is mounted on master winch bottom portion, and overturning counterweight is arranged on rear side of master winch case；Master winch case upper end and two connecting rods are hinged, and first connecting rod and second connecting rod are hinged by hinge joint and the top of overturning counterweight, and first connecting rod and second connecting rod are hinged；Master winch case and overturning counterweight lower hinge；Master winch case side is equipped with drive cylinder, and one end of drive cylinder and master winch case are hinged, connect in the middle part of the other end and second connecting rod.The present invention is by the way of increasing a set of turnover weight balance mechanism, under the conditions of guaranteeing that secondary elevator case is demountable, the distance between mounting position and the centre of gyration of mounting counterweight are increased, the weight requirements to mounting counterweight are reduced under the premise of certain stability requirement.
Description
Technical field
The present invention relates to a kind of Combined balance weight mechanisms and its application method for engineering machinery, belong to engineering machinery neck
Domain.
Background technique
Complete machine stability is the ability that hoisting machinery guarantees that complete machine is not tumbled under certain hoist amount, past in design
The critical lifting capacity determined by complete machine stability is calculated toward with equilibrant force moments method.Complete machine stability is to influence hoisting machinery hoist
One of the key index of energy, therefore weight mass is often increased into the limit that vehicle bridge can carry when designing hoisting machinery,
To improve the stability of complete machine to the maximum extent, lifting often is improved by the way of Combined balance weight for large tonnage product
Mechanical hoist performance.
Counterweight is to be typically mounted on hoisting machinery for the torque of the centre of gyration for balance crane heavy phase on hoisting machinery
Elevator case below.Really influence crane stability in principle is counterweight with respect to the torque that the centre of gyration generates, if
Balance weight is Q, and counterweight center of gravity is L with respect to the distance of the centre of gyration, then counterweight effect is in the torque of the centre of gyration are as follows: W=Q
×L.Therefore, increase counterweight center of gravity equally can be improved the complete machine stability of crane at a distance from the centre of gyration.
There are two types of the method for raising complete machine stability is usual, one is the weights for increasing counterweight by way of plug-in counterweight
Amount, another kind are by the way that the counterweight of vehicle self-carrying is mobile to the direction for deviateing the centre of gyration.In the biggish product design of tonnage
On, it is generally limited by car weight, the stability of vehicle is difficult to ensure by increasing the distance between counterweight and the centre of gyration.
It is illustrated in figure 4 on hoisting machinery and commonly mounts counterweight scheme, fixed counterweight 1.4 is fixed by bolts in master
1.2 bottom of elevator case, 1.2 rear of master winch case are respectively fixed with weight balancing oil cylinder 1.6 in the left and right sides, which realizes hanging-connecting
The installation of counterweight 1.5.It, then can be with as it can be seen that distance of the installation site of the weight balancing oil cylinder 1.6 apart from centre of gyration F is remoter in figure
The stability of bigger raising complete machine under same balance weight.It is visible in figure since secondary elevator case 1.3 is Demountable
Weight balancing oil cylinder 1.6 is mounted in and substantially at the position farthest apart from the centre of gyration.If certain major and minor elevator case 1.2,1.3 is all set
Count into it is non-removable, then can be by weight balancing oil cylinder 1.6 further away from the centre of gyration, but this is that the regulation of certain areas does not permit
Perhaps.Even allowing to be designed to fixed area, secondary elevator case 1.3 is detachable will also to increase the flexible of user's vehicle
Property, there is actual use meaning.
Since secondary elevator case 1.3 can be disassembled, causes the installation of weight balancing oil cylinder 1.6 limited, cannot be further increased counterweight
Oil cylinder 1.6 arrives the distance between centre of gyration, this will certainly increase the demand to counterweight under certain stability requirement.
Summary of the invention
The present invention is intended to provide a kind of Combined balance weight mechanism and its application method for engineering machinery, using a set of spy
Other mechanism is mobile to the direction for deviateing the centre of gyration by the mounting point of Combined balance weight；Increase counterweight to return relative to hoisting machinery
Turn the torque at center, improves complete machine stability to realize bigger hoist amount.
On the one hand the present invention is limited clear increasing in such a way that elevator case rear increases additional weight in balance weight
Torque of the counterweight with respect to the centre of gyration is increased under condition.The counterweight is supplied to mounting counterweight mounting point simultaneously, and the position is than existing
Mounting mode shown in having in technology (shown in Fig. 4) is farther from the centre of gyration.Under identical balance weight, engineering can be supplied to
Mechanical bigger trimming moment.
The present invention provides a kind of Combined balance weight mechanisms for engineering machinery, including fixed counterweight and overturning to match
Weight；The fixed counterweight is mounted on master winch bottom portion, and overturning counterweight is arranged on rear side of master winch case；
Master winch case upper end and two connecting rods are hinged, the top that first connecting rod and second connecting rod pass through hinge joint and overturning counterweight
Hingedly, first connecting rod and second connecting rod are hinged；Master winch case and overturning counterweight lower hinge；
Master winch case side is equipped with drive cylinder, and one end of drive cylinder and master winch case are hinged, in the other end and second connecting rod
Portion's connection.When drive cylinder is fully extended, two linear expansion of connecting rod, overturning counterweight is horizontally arranged, driving oil
When cylinder is shunk completely, counterweight is overturn as vertical direction setting.
Overturning counterweight one end is provided with weight balancing oil cylinder mounting hole, is equipped in weight balancing oil cylinder mounting hole removably with heavy oil
Cylinder, weight balancing oil cylinder bottom are provided with hanging-connecting counterweight.
The hanging-connecting counterweight is one or more, and hanging-connecting counterweight is mounted by weight balancing oil cylinder and is adjacent in overturning counterweight
Bottom, weight balancing oil cylinder be mounted on weight balancing oil cylinder installation bore A in, when overturn counterweight recycling when, weight balancing oil cylinder 9 also in company with become
Position can't interfere with the driving device of overturning counterweight.
The rear end of the master winch case be equipped with B, B ', C, C ', six D, D ' hinge joints, master winch case by hinge joint D,
D ' is connected and fixed formula counterweight；Master winch case passes through hinge joint C, C ' connection second connecting rod；Master winch case is connected by hinge joint B, B '
Connect the lower end of overturning counterweight.
The overturning counterweight top and one end of first connecting rod are hinged, the other end of first connecting rod and one end of second connecting rod
Hingedly, the other end of second connecting rod and master winch case are hinged, hinged with one end of drive cylinder in the middle part of second connecting rod.
The present invention provides a kind of application methods of above-mentioned Combined balance weight mechanism for engineering machinery, including following three
Kind mode:
First grade is light-load mode, fixed counterweight and overturning counterweight effect, overturns counterweight at this time and is in collapsed state；
Second gear is middle load mode, fixed counterweight and overturning counterweight effect, overturns counterweight at this time and is in release conditions；
Third gear is heavily loaded mode, fixed counterweight and overturning counterweight effect, overturns counterweight at this time and is in release conditions, turns over simultaneously
Turn other counterweights of carry under counterweight, carry quantity and weight are determined by requirement of engineering.
Beneficial effects of the present invention:
Compared with prior art, the present invention can be torn open by the way of increasing a set of turnover weight balance mechanism in the secondary elevator case of guarantee
Under conditions of unloading, the distance between mounting position and centre of gyration of mounting counterweight are increased, before certain stability requirement
The weight requirements reduced to mounting counterweight are put, or further increase the stability of complete machine under certain balance weight.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Combined balance weight mechanism of the present invention (overturning counterweight is in collapsed state)；
Fig. 2 is the structural schematic diagram that overturning counterweight is in release conditions in Fig. 1；
Fig. 3 is the structural schematic diagram that hanging-connecting counterweight is increased in Fig. 2；
Fig. 4 is the common structure schematic diagram of counterweight in the prior art；
1- turntable in figure, 2- master winch case, 3- overturning counterweight, 4- first connecting rod, 5- second connecting rod, 6- drive cylinder, 7- are fixed
Formula counterweight, 8- hanging-connecting counterweight, 9- weight balancing oil cylinder, A- weight balancing oil cylinder install bore, and B, B ', C, C ', D, D ' are hinge joint, and F is
The centre of gyration.
Specific embodiment
The present invention is further illustrated below by embodiment, but is not limited to following embodiment.
Embodiment 1:
As shown in Fig. 1 ~ 3, master winch case 2 and turntable 1 be it is integrated, 2 bottom of master winch case is equipped with fixed counterweight 7, this portion
Depending on repeated root is distributed according to vehicle axle load, if overweight can cancel.A kind of combined type for engineering machinery provided by the invention
Balance weight mechanism, including fixed counterweight 7 and overturning counterweight 3；The fixed counterweight 7 is mounted on 2 bottom of master winch case, and overturning is matched
3 settings are weighed in 2 rear side of master winch case；
2 upper end of master winch case and two connecting rods are hinged, and first connecting rod 4 and second connecting rod 5 by hinge joint and overturn counterweight 3
Top is hinged, and first connecting rod 4 and second connecting rod 5 are hinged；Master winch case 2 and overturning 3 lower hinge of counterweight；
2 side of master winch case is equipped with drive cylinder 6, and one end of drive cylinder 6 and master winch case 2 are hinged, and the other end and second connects
It is connected in the middle part of bar 5.When drive cylinder 6 is fully extended, two linear expansion of connecting rod, overturning counterweight 3 be it is horizontally arranged,
When drive cylinder is shunk completely, counterweight 3 is overturn as vertical direction setting.
The rear end of the master winch case be equipped with B, B ', C, C ', six D, D ' hinge joints, master winch case by hinge joint D,
D ' is connected and fixed formula counterweight；Master winch case passes through hinge joint C, C ' connection second connecting rod；Master winch case is connected by hinge joint B, B '
Connect the lower end of overturning counterweight.
Hinge B, B ' are then with overturning 3 lower hinge of counterweight, and overturning counterweight 3 is hinged with first connecting rod 4 simultaneously, first connecting rod
4 other ends and second connecting rod 5 are hinged, and second connecting rod 5 is separately respectively articulated with master winch case 2 and drive cylinder 6.When drive cylinder 6
When piston rod state shown in Fig. 1 is protruding, by the transmission of first connecting rod 4 and second connecting rod 5, counterweight 3 is overturn around hinge
B, B ' rotation, until state shown in Fig. 2, overturns counterweight 3 at this time and be in horizontality.
As shown in Figure 2, when overturning counterweight 3 is when in a horizontal state, hinge C and hinge D on master winch case 2 are exposed outside
Come, at this moment the space at master winch case rear portion can install secondary elevator case (1.3 be secondary elevator case shown in Fig. 4, and secondary elevator case is only
It is installed and used under certain specific operations.).
In addition, one group can respectively be arranged in 2 two sides of master winch case for the design for overturning 3 driving mechanism of counterweight, it can also be with
Drive cylinder 6 only is arranged in side, and first connecting rod 4, second connecting rod 5 are only arranged in the other side.
As stated above, can specify vehicle overturn under traveling or working condition counterweight 3 be can pack up be also can
It, then must be by overturning counterweight 3 release to horizontality but if needing to install additional secondary elevator case with release.
If necessary to the additional stability for increasing additional weight and further increasing vehicle, then it can use and pacify weight balancing oil cylinder
Mode in overturning counterweight, shown in Fig. 2, one end of overturning counterweight 3 is equipped with weight balancing oil cylinder and installs bore A.Compared to Fig. 4 institute
Show scheme, the distance between weight balancing oil cylinder and the centre of gyration are lengthened, and can reduce counterweight under same stable requirement
Demand.Fig. 3 is the state for completing hanging-connecting counterweight, it is seen that mounts other counterweights if necessary and overturning counterweight is similarly required to release
It puts, is allowed in horizontality.
Hanging-connecting counterweight 8 in Fig. 3, hanging-connecting counterweight can be one piece and can also be mounted and be pasted by weight balancing oil cylinder 9 with muti-piece
Tightly in overturning 3 bottom of counterweight, weight balancing oil cylinder 9 is installed in weight balancing oil cylinder installation bore A shown in Fig. 2, when overturning counterweight 3 recycles
When, weight balancing oil cylinder 9 in company with displacement, can't also interfere with the driving device of overturning counterweight.
The process narration that counterweight is mounted according to the device, can specify vehicle must be first by overturning when needing to mount counterweight
Counterweight is discharged to horizontality.Likewise, to reduce the bearing capacity of drive cylinder 6, it is desirable that necessary before withdrawing overturning counterweight 3
Guarantee cannot mount counterweight.
The present invention provides a kind of application methods of above-mentioned Combined balance weight mechanism for engineering machinery, including following three
Kind mode: first grade is light-load mode, and fixed counterweight 7 and overturning counterweight 3 act on, and overturning counterweight 3 is in shape shown in Fig. 1 at this time
State；
Second gear is middle load mode, and fixed counterweight 7 and overturning counterweight 3 act on, and overturns counterweight 3 at this time and is in state shown in Fig. 2；
Third gear is heavily loaded mode, and fixed counterweight 7 and overturning counterweight 3 act on, overturn counterweight 3 at this time and be in release conditions, together
When lower other counterweights of carry of overturning counterweight 3, as shown in figure 3, carry quantity and weight are determined by requirement of engineering.
Claims (7)
1. a kind of Combined balance weight mechanism for engineering machinery, it is characterised in that: including fixed counterweight and overturning counterweight；Institute
It states fixed counterweight and is mounted on master winch bottom portion, overturning counterweight is arranged on rear side of master winch case；
Master winch case upper end and two connecting rods are hinged, the top that first connecting rod and second connecting rod pass through hinge joint and overturning counterweight
Hingedly, first connecting rod and second connecting rod are hinged；Master winch case and overturning counterweight lower hinge；
Master winch case side is equipped with drive cylinder, and one end of drive cylinder and master winch case are hinged, in the other end and second connecting rod
Portion's connection.
2. the Combined balance weight mechanism according to claim 1 for engineering machinery, it is characterised in that: overturning counterweight one end
It is provided with weight balancing oil cylinder mounting hole, dismountable weight balancing oil cylinder, the setting of weight balancing oil cylinder bottom are installed in weight balancing oil cylinder mounting hole
There is hanging-connecting counterweight.
3. the Combined balance weight mechanism according to claim 2 for engineering machinery, it is characterised in that: the hanging-connecting is matched
Weight is one or more.
4. the Combined balance weight mechanism according to claim 2 for engineering machinery, it is characterised in that: hanging-connecting counterweight is logical
It crosses weight balancing oil cylinder to mount and be adjacent in the bottom of overturning counterweight, weight balancing oil cylinder is mounted in weight balancing oil cylinder installation bore, works as overturning
When counterweight recycles, weight balancing oil cylinder in company with displacement, can't also interfere with the driving device of overturning counterweight.
5. the Combined balance weight mechanism according to claim 1 for engineering machinery, it is characterised in that: the master winch case
Rear end be equipped with B, B ', C, C ', six D, D ' hinge joints, master winch case is connected and fixed formula counterweight by hinge joint D, D '；It is main
Elevator case passes through hinge joint C, C ' connection second connecting rod；Master winch case overturns the lower end of counterweight by hinge joint B, B ' connection.
6. the Combined balance weight mechanism according to claim 1 for engineering machinery, it is characterised in that: the overturning counterweight
Top and one end of first connecting rod are hinged, and the other end of first connecting rod and one end of second connecting rod are hinged, second connecting rod it is another
End is hinged with master winch case, hinged with one end of drive cylinder in the middle part of second connecting rod.
7. a kind of application method of the described in any item Combined balance weight mechanisms for engineering machinery of claim 1 ~ 6, special
Sign is: include the following three types mode:
First grade is light-load mode, fixed counterweight and overturning counterweight effect, overturns counterweight at this time and is in collapsed state；
Second gear is middle load mode, fixed counterweight and overturning counterweight effect, overturns counterweight at this time and is in release conditions；
Third gear is heavily loaded mode, fixed counterweight and overturning counterweight effect, overturns counterweight at this time and is in release conditions, turns over simultaneously
Turn other counterweights of carry under counterweight, carry quantity and weight are determined by requirement of engineering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446769.9A CN110127542A (en) | 2019-05-27 | 2019-05-27 | A kind of Combined balance weight mechanism and its application method for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446769.9A CN110127542A (en) | 2019-05-27 | 2019-05-27 | A kind of Combined balance weight mechanism and its application method for engineering machinery |
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| CN110127542A true CN110127542A (en) | 2019-08-16 |
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| CN201910446769.9A Pending CN110127542A (en) | 2019-05-27 | 2019-05-27 | A kind of Combined balance weight mechanism and its application method for engineering machinery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573391A (en) * | 2020-11-23 | 2021-03-30 | 宜兴市云顶机械科技有限公司 | Rotatable davit with protective structure |
| CN113651250A (en) * | 2021-08-31 | 2021-11-16 | 湖南三一中型起重机械有限公司 | Auxiliary hoisting self-disassembling crane |
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| CN101624165A (en) * | 2008-07-07 | 2010-01-13 | 徐州重型机械有限公司 | Combined counterweight device and crane using same |
| CN102583176A (en) * | 2012-03-09 | 2012-07-18 | 三一汽车起重机械有限公司 | Mobile counterweight mechanism for engineering machine |
| CN104528553A (en) * | 2015-01-28 | 2015-04-22 | 徐州重型机械有限公司 | Movable type counter weight mechanism of hoisting machine and hoisting machine |
| CN104828719A (en) * | 2014-07-24 | 2015-08-12 | 北汽福田汽车股份有限公司 | Crane and rotational weight-balancing device thereof |
| CN107188052A (en) * | 2017-07-19 | 2017-09-22 | 广东省特种设备检测研究院东莞检测院 | A kind of crane packaged type balanced controls |
| CN206569945U (en) * | 2017-03-27 | 2017-10-20 | 山东以琳智能科技有限公司 | A kind of crane arm Adaptable System of flat-top tower crane |
-
2019
- 2019-05-27 CN CN201910446769.9A patent/CN110127542A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624165A (en) * | 2008-07-07 | 2010-01-13 | 徐州重型机械有限公司 | Combined counterweight device and crane using same |
| CN102583176A (en) * | 2012-03-09 | 2012-07-18 | 三一汽车起重机械有限公司 | Mobile counterweight mechanism for engineering machine |
| CN104828719A (en) * | 2014-07-24 | 2015-08-12 | 北汽福田汽车股份有限公司 | Crane and rotational weight-balancing device thereof |
| CN104528553A (en) * | 2015-01-28 | 2015-04-22 | 徐州重型机械有限公司 | Movable type counter weight mechanism of hoisting machine and hoisting machine |
| CN206569945U (en) * | 2017-03-27 | 2017-10-20 | 山东以琳智能科技有限公司 | A kind of crane arm Adaptable System of flat-top tower crane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573391A (en) * | 2020-11-23 | 2021-03-30 | 宜兴市云顶机械科技有限公司 | Rotatable davit with protective structure |
| CN113651250A (en) * | 2021-08-31 | 2021-11-16 | 湖南三一中型起重机械有限公司 | Auxiliary hoisting self-disassembling crane |
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Application publication date: 20190816 |