CN103539025B - The weighing device of hoisting crane and there is its hoisting crane - Google Patents
The weighing device of hoisting crane and there is its hoisting crane Download PDFInfo
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- CN103539025B CN103539025B CN201210241831.9A CN201210241831A CN103539025B CN 103539025 B CN103539025 B CN 103539025B CN 201210241831 A CN201210241831 A CN 201210241831A CN 103539025 B CN103539025 B CN 103539025B
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Abstract
The invention discloses a kind of weighing device of hoisting crane, described weighing device is located on the turntable of described hoisting crane, and described weighing device comprises: counterweight, and described counterweight can be rotatably set in the bottom rear of described turntable; Actuating device, described actuating device is connected with described counterweight with described turntable respectively for driving described counterweight to rotate predetermined angular; Locking Device, described Locking Device is connected with described actuating device and makes described counterweight can keep quiescence at described predetermined angular.According to the weighing device of the embodiment of the present invention, resistant to tipping moment is changed relative to the position of hoisting crane by the center of gravity changing counterweight, Locking Device can make counterweight keep quiescence at this predetermined angular, avoid the center of gravity travelling backwards of counterweight and eliminate potential safety hazard, thus when not increasing balance weight, enhance the transaction capabilities of craning weight of same, improve the stability of hoisting crane, safety.The invention also discloses a kind of hoisting crane with above-mentioned weighing device.
Description
Technical field
The present invention relates to automotive field, especially relate to a kind of weighing device of hoisting crane and there is its hoisting crane.
Background technology
The counterweight mainly fixed type counterweight of car hosit in the market, this counterweight is directly fixed on turntable bottom by bolt, and therefore its center-of-gravity position is static and with center of gyration apart from constant relative to turntable.Along with car hosit operation under different operating mode, amplitude, tilting moment can along with crane arm support extend and weight amplitude increase and become large.Obviously, the counterweight that fixed quality does not increase can not reach the function improving complete machine stability.
Summary of the invention
The present invention is intended at least to solve one of technical matters existed in prior art.
For this reason, one object of the present invention is the weighing device of the hoisting crane proposing a kind of adjustable weight center of gravity.
Another object of the present invention is to propose a kind of hoisting crane with above-mentioned weighing device.
According to the weighing device of the hoisting crane of the embodiment of the present invention, described weighing device is located on the turntable of described hoisting crane, and described weighing device comprises: counterweight, and described counterweight can be rotatably set in the bottom rear of described turntable; Actuating device, described actuating device is connected with described counterweight with described turntable respectively for driving described counterweight to rotate predetermined angular; Locking Device, described Locking Device is connected with described actuating device and makes described counterweight can keep quiescence at described predetermined angular.
According to the weighing device of the embodiment of the present invention, by being provided with actuating device and Locking Device, actuating device can drive counterweight to rotate predetermined angular, resistant to tipping moment is changed relative to the position of hoisting crane with the center of gravity by changing counterweight, Locking Device can make counterweight keep quiescence at this predetermined angular, avoid the center of gravity travelling backwards of counterweight and eliminate potential safety hazard, thus when not increasing balance weight, enhance the transaction capabilities of craning weight of same, improve the stability of hoisting crane, safety.
In addition, according to weighing device of the present invention, also there is following additional technical feature:
Particularly, described actuating device comprises: oil cylinder, and the piston rod of described oil cylinder is connected with described counterweight to drive described counterweight to rotate predetermined angular; With the oil pump for providing hydraulic oil to oil cylinder, wherein said oil cylinder is connected by hydraulic tubing with described oil pump.
Described Locking Device is balance cock, and described balance cock is arranged on described hydraulic tubing.Thus, weighing device structure is simple, easy to operate.
Further, weighing device also comprises change-over valve, and described change-over valve is arranged on described hydraulic tubing to control the flexible and static of described piston rod.This change-over valve has convenient and reliable advantage.
According to some embodiments of the present invention, the rear portion of described counterweight is connected with the bottom rear of described turntable, and described actuating device is arranged on the front side of described counterweight.
Further, weighing device also comprises: the first fixed support, described first fixed support is located at described turntable lower front, and the first end of described actuating device is rotatably connected on described first fixed support and the second end is rotationally attached to the front portion of described counterweight; With two the second fixed supports, described two the second fixed supports are located at rear side bottom described turntable in left-right direction at interval, and the rear portion of described counterweight is rotatably connected between described two the second fixed supports.Thus, be convenient to actuating device and counterweight is installed on turntable.
Preferably, the first end of described actuating device and described first fixed support chain connection and the second end and described counterweight chain connection, described counterweight and described second fixed support chain connection.Thus, connect simply and control comfort.
Particularly, the first end of described actuating device and described first support bracket fastened first hinge-point, the second end of described actuating device and the second hinge-point of described counterweight and described counterweight and described second support bracket fastened 3rd hinge-point perpendicular projection on one wire.Thus make counterweight spin stabilization and running accuracy is high.
The hoisting crane of embodiment according to a second aspect of the present invention, comprising: car body; Control cabin, described control cabin to be located on described car body and in establish maneuvering system; Turntable, described turntable is located at the rear side of described car body; Crane arm, one end of described crane arm to be rotatably connected on described turntable and to be controlled to rotate with weight of slinging by described maneuvering system; The weighing device of the hoisting crane of embodiment according to a first aspect of the present invention, described weighing device is located on described turntable.
According to the hoisting crane of the embodiment of the present invention, by being provided with weighing device, when not increasing balance weight, enhancing the transaction capabilities of craning weight of same, improve the stability of hoisting crane, safety, crane operation is got up more accurately with comfortable.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic diagram of hoisting crane when not rotating according to the counterweight of the embodiment of the present invention;
Fig. 2 is the schematic diagram of hoisting crane when being in solstics according to the center of gravity of the counterweight of the embodiment of the present invention; With
Fig. 3 is the control principle drawing according to the counterweight in the weighing device of the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, particular case above-mentioned term concrete meaning in the present invention can be understood.
The weighing device 100 of a kind of hoisting crane of embodiment is according to a first aspect of the present invention described, for tilting moment before balance crane 200 on the turntable 101 that this weighing device 100 is located at hoisting crane 200 below with reference to Fig. 1-Fig. 3.Those of ordinary skill of the present invention should be appreciated that, in the following describes, the gravity motion of said counterweight 1 all refers to the change in location of the center of gravity of counterweight 1 relative to hoisting crane 200, and the gravity center shift of counterweight 1 can cause the change of the resistant to tipping moment of hoisting crane 200.
According to the weighing device 100 of the hoisting crane of the embodiment of the present invention, as shown in Figure 1-Figure 3, comprising: counterweight 1, actuating device 2 and Locking Device 3, wherein, counterweight 1 can be rotatably set in the bottom rear of turntable 101.Actuating device 2 is connected with counterweight 1 for driving counterweight 1 to rotate predetermined angular with turntable 101 respectively.Locking Device 3 is connected with actuating device 2 and makes counterweight 1 can keep quiescence at predetermined angular.
Along with hoisting crane operation under different operating mode, amplitude, the tilting moment of hoisting crane can along with crane arm support extend and weight amplitude increase and become large, in order to improve the load-carrying ability of hoisting crane, just must improve resistant to tipping moment, now, counterweight 1 is driven to rotate predetermined angular to improve resistant to tipping moment, when counterweight 1 forwards predetermined angular to by actuating device 2, namely resistant to tipping moment and before tumble moment balance time, Locking Device 3 can make counterweight 1 this predetermined angular keep quiescence.
According to the weighing device 100 of the embodiment of the present invention, by being provided with actuating device 2 and Locking Device 3, actuating device 2 can drive counterweight 1 to rotate predetermined angular, resistant to tipping moment is changed relative to the position of hoisting crane 200 with the center of gravity by changing counterweight 1, Locking Device 3 can make counterweight 1 keep quiescence at this predetermined angular, avoid the center of gravity travelling backwards of counterweight 1 and eliminate potential safety hazard, thus when not increasing counterweight 1 weight, enhance the transaction capabilities of hoisting crane 200 lift heavy, improve the stability of hoisting crane 200, safety.
Particularly, actuating device 2 comprises: oil cylinder 20 and oil pump (scheming not shown), and wherein, the piston rod 21 of oil cylinder 20 is connected to drive counterweight 1 to rotate predetermined angular with counterweight 1.Oil pump is used for providing hydraulic oil to oil cylinder 20, and oil cylinder 20 is connected by hydraulic tubing 22 with oil pump.Further, Locking Device 3 is balance cock, and balance cock 3 is arranged on hydraulic tubing 22.Thus, weighing device 100 structure is simple, easy to operate.Further, weighing device 100 also comprises change-over valve 4, and change-over valve 4 is arranged on stretching with static with control plunger bar 21 on hydraulic tubing 22.Particularly, the mode of mechanical operation bar can be adopted to control change-over valve 4, this change-over valve 4 has three positions, is respectively used to control the stretching of oil cylinder 20, contracts, static three actions, and this change-over valve 4 has convenient and reliable advantage.
In the example of fig. 3, balance cock 3 is arranged on hydraulic tubing 22, change-over valve 4 is arranged on hydraulic tubing 22, when oil pump provides hydraulic oil in oil cylinder 20, handle change-over valve 4 and open balance cock 3, hydraulic oil is stretched out to promote piston rod 21 respectively through entering into after change-over valve 4 and balance cock 3 in oil cylinder 20, thus drives counterweight 1 to rotate preset distance.When piston rod 21 is retracted, reversing valve operated 4, hydraulic oil is back in oil pump through change-over valve 4.
According to some embodiments of the present invention, as depicted in figs. 1 and 2, the rear portion of counterweight 1 is connected with the bottom rear of turntable 101, and actuating device 2 is arranged on the front side of counterweight 1.
As shown in Figure 1, the piston rod 21 of oil cylinder 20 does not stretch out, and the rotational angle of counterweight 1 is 0 degree, and when oil pump provides hydraulic oil in oil cylinder 20, piston rod 21 stretches out, and counterweight 1 rotates predetermined angular along the direction of arrow shown in Fig. 1.As shown in Figure 2, the rotational angle that piston rod 21 stretches out i.e. counterweight 1 is completely 180 degree, and move on to solstics after the center of gravity of counterweight 1, now resistant to tipping moment is maximum.
Further, weighing device 100 also comprises: the first fixed support 5 and two the second fixed supports 6, wherein, first fixed support 5 is located at turntable 101 lower front, and the first end (as shown in Figure 1 front end) of actuating device 2 is rotatably connected on the first fixed support 5 and the second end (as shown in Figure 1 rear end) is rotationally attached to the front portion of counterweight 1.Two the second fixed supports 6 are located at rear side bottom turntable 101 in left-right direction at interval, and the rear portion of counterweight 1 is rotatably connected between two the second fixed supports 6.Thus, be convenient to actuating device 2 and counterweight 1 is installed on turntable 101.
Preferably, the first end of actuating device 2 and the first fixed support 5 chain connection and the second end and counterweight 1 chain connection, counterweight 1 and the second fixed support 6 chain connection.Thus, connect simply and control comfort.
Particularly, as depicted in figs. 1 and 2, the first end of actuating device 2 and the second hinge-point 8 of the first hinge-point 7 of the first fixed support 5, the second end of actuating device 2 and counterweight 1 and the 3rd hinge-point 9 of counterweight 1 and the second fixed support 6 perpendicular projection on one wire.Meanwhile, the first hinge-point 7, counterweight 1 are projected as equicrural triangle respectively with two the second fixed supports 6 hinged two the 3rd hinge-points 9 at horizontal surface.Thus make counterweight 1 spin stabilization and running accuracy is high.
Below with reference to Fig. 1-Fig. 3, the working process according to the weighing device 100 of the embodiment of the present invention is described.
First, reversing valve operated 4 and open balance cock 3, hydraulic oil in oil pump enters in oil cylinder 20 respectively through after change-over valve 4 and balance cock 3, piston rod 21 moves backward by the effect of hydraulic oil, piston rod 21 passes to the moment that counterweight 1 one rotates around the 3rd hinge-point 9, now counterweight 1 rotates along the direction of arrow in Fig. 1 around the 3rd hinge-point 9, and the center of gravity of counterweight 1 is also along with the change of counterweight 1 anglec of rotation then moves.The ultimate range of moving after counterweight 1 center of gravity depends on geometry three-dimensional shape and the space deployment scenarios of counterweight 1.
When counterweight 1 rotates to predetermined angular, due to the control of balance cock 3 and change-over valve 4, hydraulic oil can not flow back into oil pump through hydraulic tubing from oil cylinder 20, counterweight 1 keeps (action such as comprising luffing, turning round, hoist) under the state of craning weight of same operation static (center of gravity no longer changes, unless operating personnel operates again).
When moving on to solstics after the center of gravity of counterweight 1, can reversing valve operated 4 piston rod 21 be bounced back, thus drive counterweight 1 to rotate around the 3rd hinge-point 9 along the direction of arrow in Fig. 2, the center of gravity of counterweight 1 also moves forward along with the change of counterweight 1 anglec of rotation.
According to the weighing device 100 of the embodiment of the present invention, actuating device 2 can drive counterweight 1 to rotate predetermined angular, thus make the center of gravity of counterweight 1 removable to change resistant to tipping moment, when not increasing counterweight 1 weight, enhance the transaction capabilities of hoisting crane 200 lift heavy, improve the stability of hoisting crane 200, safety, hoisting crane 200 is operated more accurately with comfortable.
A kind of hoisting crane 200 of embodiment is according to a second aspect of the present invention described below with reference to Fig. 1-Fig. 3.
According to the hoisting crane 200 of the embodiment of the present invention, comprise: the weighing device 100 of car body 102, control cabin (scheming not shown), turntable 101, crane arm (scheming not shown) and hoisting crane, wherein, control cabin to be located on car body and in establish maneuvering system (scheming not shown).Turntable 101 is located at the rear side of car body.One end of crane arm to be rotatably connected on turntable 101 and to be controlled to rotate with weight of slinging by maneuvering system.The weighing device 100 of hoisting crane is the weighing device 100 of the hoisting crane of embodiment according to a first aspect of the present invention, and weighing device 100 is located on turntable 101.
According to the hoisting crane 200 of the embodiment of the present invention, by being provided with weighing device 100, when not increasing counterweight 1 weight, enhance the transaction capabilities of hoisting crane 200 lift heavy, improve the stability of hoisting crane 200, safety, hoisting crane 200 is operated more accurately with comfortable.
Be all known according to other configuration examples of the hoisting crane of the embodiment of the present invention for those of ordinary skills as operating system and driving system etc. and operation, be not described in detail here.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (6)
1. a weighing device for hoisting crane, described weighing device is located on the turntable of described hoisting crane, it is characterized in that, described weighing device comprises:
Counterweight, described counterweight can be rotatably set in the bottom rear of described turntable;
Actuating device, described actuating device is connected with described counterweight with described turntable respectively for driving described counterweight to rotate predetermined angular;
Locking Device, described Locking Device is connected with described actuating device and makes described counterweight can keep quiescence at described predetermined angular; The rear portion of described counterweight is connected with the bottom rear of described turntable, and described actuating device is arranged on the front side of described counterweight;
First fixed support, described first fixed support is located at described turntable lower front, and the first end of described actuating device is rotatably connected on described first fixed support and the second end is rotationally attached to the front portion of described counterweight; With
Two the second fixed supports, described two the second fixed supports are located at rear side bottom described turntable in left-right direction at interval, and the rear portion of described counterweight is rotatably connected between described two the second fixed supports;
The first end of described actuating device and described first support bracket fastened first hinge-point, the second end of described actuating device and the second hinge-point of described counterweight and described counterweight and described second support bracket fastened 3rd hinge-point perpendicular projection on one wire.
2. the weighing device of hoisting crane according to claim 1, is characterized in that, described actuating device comprises:
Oil cylinder, the piston rod of described oil cylinder is connected with described counterweight to drive described counterweight to rotate predetermined angular; With
For providing the oil pump of hydraulic oil to oil cylinder, wherein said oil cylinder is connected by hydraulic tubing with described oil pump.
3. the weighing device of hoisting crane according to claim 2, is characterized in that, described Locking Device is balance cock, and described balance cock is arranged on described hydraulic tubing.
4. the weighing device of hoisting crane according to claim 3, is characterized in that, comprises change-over valve further, and described change-over valve is arranged on described hydraulic tubing to control the flexible and static of described piston rod.
5. the weighing device of hoisting crane according to claim 1, is characterized in that, the first end of described actuating device and described first fixed support chain connection and the second end and described counterweight chain connection, described counterweight and described second fixed support chain connection.
6. a hoisting crane, is characterized in that, comprising:
Car body;
Control cabin, described control cabin to be located on described car body and in establish maneuvering system;
Turntable, described turntable is located at the rear side of described car body;
Crane arm, one end of described crane arm to be rotatably connected on described turntable and to be controlled to rotate with weight of slinging by described maneuvering system; With
The weighing device of the hoisting crane according to any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241831.9A CN103539025B (en) | 2012-07-12 | 2012-07-12 | The weighing device of hoisting crane and there is its hoisting crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241831.9A CN103539025B (en) | 2012-07-12 | 2012-07-12 | The weighing device of hoisting crane and there is its hoisting crane |
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| CN103539025A CN103539025A (en) | 2014-01-29 |
| CN103539025B true CN103539025B (en) | 2015-10-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444860B (en) * | 2014-12-11 | 2016-10-05 | 徐州重型机械有限公司 | A kind of hanging device, weight-balancing device and hooking method |
| WO2016119135A1 (en) * | 2015-01-28 | 2016-08-04 | 徐州重型机械有限公司 | Movable counterweight mechanism of hoisting machinery and hoisting machinery |
| US9783395B2 (en) * | 2015-03-31 | 2017-10-10 | Manitowoc Crane Companies, Llc | System and method for crane counterweight positioning |
| CN104986057B (en) | 2015-07-22 | 2017-06-09 | 北京交通大学 | Track traffic negative voltage backflow DC power-supply system |
| CN109279521A (en) * | 2018-12-12 | 2019-01-29 | 三汽车起重机械有限公司 | Counterweight mobile device and crane |
| WO2023184766A1 (en) * | 2022-03-31 | 2023-10-05 | 三一海洋重工有限公司 | Center of gravity adjusting device, construction machine, and detection device |
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| CN202245847U (en) * | 2011-09-21 | 2012-05-30 | 三一重工股份有限公司 | Counterweight device and engineering machinery |
| CN202754725U (en) * | 2012-07-12 | 2013-02-27 | 北汽福田汽车股份有限公司 | Balance weight equipment of crane and crane provided with the same |
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| JPS4924620B1 (en) * | 1970-04-07 | 1974-06-24 | ||
| JPS6039636B2 (en) * | 1978-12-27 | 1985-09-06 | 株式会社日立製作所 | Jib crane levitation balance device |
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| US5518128A (en) * | 1992-11-06 | 1996-05-21 | Mannesmann Aktiengesellschaft | Crane, particularly railway crane |
| US6102220A (en) * | 1998-07-10 | 2000-08-15 | Mannesmann Ag | Crane jib |
| CN201520606U (en) * | 2009-07-09 | 2010-07-07 | 徐州徐工随车起重机有限公司 | Counterweight bolt mechanism of lorry-mounted crane |
| CN202245847U (en) * | 2011-09-21 | 2012-05-30 | 三一重工股份有限公司 | Counterweight device and engineering machinery |
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| CN103539025A (en) | 2014-01-29 |
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