CN203069298U - Landing leg counter-force sensor, anti-tipping control system and landing leg type engineering machinery - Google Patents
Landing leg counter-force sensor, anti-tipping control system and landing leg type engineering machinery Download PDFInfo
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- CN203069298U CN203069298U CN 201320085304 CN201320085304U CN203069298U CN 203069298 U CN203069298 U CN 203069298U CN 201320085304 CN201320085304 CN 201320085304 CN 201320085304 U CN201320085304 U CN 201320085304U CN 203069298 U CN203069298 U CN 203069298U
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a landing leg counter-force sensor, an anti-tilt control system and a beat landing leg formula engineering machine tool to accurate, timely reflection engineering machine tool's stable situation improves engineering machine tool's security. The landing leg reaction force sensor includes: the elastic body is provided with at least one sensing element arrangement cavity, a supporting leg oil cylinder penetrating hole in the middle and a group of mounting holes in the periphery, and the elastic body is fixed between the bottom of the supporting leg beam and a supporting leg oil cylinder flange through a fastener arranged in the group of mounting holes; the deformation sensing elements are correspondingly arranged in the sensing element arrangement cavities; and the wiring device is in signal connection with each deformation sensing element and is provided with an output port.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to anti-rollover control system and a kind of formula engineering machinery that makes a jack of a kind of outrigger reaction sensor, a kind of formula engineering machinery that makes a jack.
Background technology
The formula that makes a jack engineering machinery, for example concrete mixer, aerial ladder, lorry-mounted crane, truck-mounted crane etc. support whole engineering machinery and load gross weight with four supporting legs when work, and the complete and ground of wheel disengages.Owing to roadbed injustice, roadbed subside or meet reasons such as soft roadbed, overthrow accident takes place through regular meeting in the formula that makes a jack engineering machinery when operation; In addition, actions such as the luffing of support jib, revolution also can cause the center of gravity of engineering machinery to change, and this also is a key factor that causes engineering machinery to be tumbled.
In order to prevent that engineering machinery from overthrow accident taking place when the operation, the formula engineering machinery of making a jack realizes STABILITY MONITORING by limiter of moment usually.Limiter of moment generally includes pressure transducer, linear transducer, angular transducer and controller, pressure transducer is measured the beam hanger cavity pressure of amplitude oil cylinder and the weight of assumed (specified) load according to this, linear transducer is measured the length of jib, angular transducer is measured the change angle of jib, controller obtains detecting moment according to above parameter, in case when this detection moment reaches the tilting moment threshold value of engineering machinery, send alerting signal, remind operating personnel to stop current operation.
The defective that prior art exists is, limiter of moment can not reflect the stressing conditions of each supporting leg and the safety case of engineering machinery accurately, timely, when operator's misoperation (for example starting suddenly, anxious action such as stop), engineering machinery is very easily tumbled because bigger inertia produces earlier; If situations such as softly sink in ground, the leakage of supporting leg hydraulic lock also very easily produced overthrow accident before limiter of moment is reported to the police.
The utility model content
The utility model provides anti-rollover control system and a kind of formula engineering machinery that makes a jack of a kind of outrigger reaction sensor, a kind of formula engineering machinery that makes a jack, and in order to reflect the stability state of engineering machinery accurately, timely, improves the security of engineering machinery.
The utility model outrigger reaction sensor comprises:
Elastic body has at least one sensing element and arranges chamber, and the support oil cylinder that is positioned at the middle part passes the hole and be positioned at one group of mounting hole of periphery, and described elastic body is fixed between supporting leg beam bottom and the support oil cylinder flange by the securing member that is arranged at one group of mounting hole;
Correspondence is arranged at the distortion sensing element in each sensing element layout chamber;
Wiring unit is connected with each distortion sensing element signal and has an output port.
Preferably, described elastic body has and passes the support oil cylinder safety valve that the hole is communicated with support oil cylinder and dodge opening.
Optionally, described sensing element arranges that the chamber is round tube hole, and quantity is three, and described three round tube holes and support oil cylinder safety valve are dodged opening and be distributed in support oil cylinder and pass the circumferential of hole;
Described distortion sensing element is four piezoresistive strain sheets, is attached at 45 degree directions, 135 degree directions, 225 degree directions and the 315 degree directions of round tube hole hole wall respectively, and forms bridge circuit.
Optionally, described elastomeric lower surface has four horizontal breach, described four horizontal breach are distributed in circumferential and relative support oil cylinder safety valve that support oil cylinder passes the hole and dodge opening and be symmetrically distributed, described elastomeric upper surface has three horizontal grooves, each horizontal groove between two adjacent horizontal breach, described three horizontal grooves and support oil cylinder safety valve dodge opening be distributed in support oil cylinder pass the hole circumferentially;
Described sensing element arranges that the chamber is blind hole, and quantity is six, and each blind hole is positioned at being connected root and leading to the elastomeric outside of adjacent a pair of horizontal breach and horizontal groove;
Described distortion sensing element is two piezoresistive strain sheets, and square crossing is attached at the bottom of blind hole, is 45 degree angles with horizontal direction, forms bridge circuit.
Optionally, described sensing element arranges that the chamber is horizontal grooving, and quantity is four, is distributed in circumferential and relative support oil cylinder safety valve that support oil cylinder passes the hole and dodges opening and be symmetrically distributed;
Described distortion sensing element is to be positioned at pressure-sensitive of described horizontal grooving.
Preferably, described wiring unit is the terminal box of fixedlying connected with elastic body, and described terminal box inside is integrated with mould/number signal processing circuit.
The make a jack anti-rollover control system of formula engineering machinery of the utility model comprises:
Corresponding each bar supporting leg institute is the described outrigger reaction sensor of arbitrary technical scheme as described above of setting respectively, the reaction of bearing that each outrigger reaction sensor bears for detection of corresponding supporting leg;
Control device, signal connects the output port of each outrigger reaction sensor, be used for when the reaction of bearing sum of any two adjacent legs during less than the unstability threshold value of setting, export the control signal that stops operation, the jib of control engineering machinery stops operation, wherein, the unstability threshold value of described setting is the reaction of bearing sum of engineering machinery adjacent two supporting legs when being in the unstability critical conditions of setting.
Preferably, described control device also is used for exporting conventional alerting signal when the reaction of bearing of arbitrary supporting leg is not more than zero; Described anti-rollover control system also comprises:
The warning device that is connected with the control device signal is used for carrying out routine according to described conventional alerting signal and reports to the police.
Preferably, described warning device also is used for carrying out danger warning according to the described control signal that stops operation;
Described control device when also surpassing the time threshold of setting for report to the police when routine duration or danger warning duration, is exported the control signal of cutting off the power supply, the outage of control engineering machinery.
The utility model formula engineering machinery that makes a jack comprises the described anti-rollover control system of aforementioned arbitrary technical scheme.
In technical solutions of the utility model, the reaction of bearing sum that four outrigger reaction sensors detect is the gross weight of engineering machinery and platform load, when the reaction of bearing sum of any two adjacent legs during less than the unstability threshold value set, control device can in time be exported the control signal that stops operation, and the jib of control engineering machinery stops operation.Compared with prior art, the outrigger reaction sensor can be measured the stressing conditions of supporting leg accurately, timely and reflect the safety case of whole engineering machinery, control device output stop operation control signal in time the jib of control engineering machinery stop operation, thereby avoid the generation of overthrow accident, therefore, the security of engineering machinery is greatly enhanced.
Description of drawings
Fig. 1 a is the structural representation of the utility model outrigger reaction sensor first embodiment;
Fig. 1 b is the structural representation that sensing element is arranged chamber and distortion sensing element among the utility model outrigger reaction sensor first embodiment;
Fig. 2 a is the structural representation of the utility model outrigger reaction sensor second embodiment;
Fig. 2 b is the structural representation that sensing element is arranged chamber and distortion sensing element among the utility model outrigger reaction sensor second embodiment;
Fig. 3 is the structural representation of the utility model outrigger reaction sensor the 3rd embodiment;
Fig. 4 is the utility model outrigger reaction sensor installation site synoptic diagram;
Fig. 5 is the structural representation of the utility model anti-rollover control system one embodiment.
Reference numeral:
10-outrigger reaction sensor 11-control device 12-warning device
13-elastic body 14-sensing element arranges that chamber 15-support oil cylinder passes the hole
16-mounting hole 17-supporting leg beam 18-support oil cylinder flange
19-distortion sensing element 20-wiring unit 21-output port
22-support oil cylinder safety valve is dodged the horizontal breach 24-of opening 23-horizontal groove
The 25-securing member passes through the hole
Embodiment
In order to reflect the stability state of the formula engineering machinery that makes a jack accurately, timely, improve the security of engineering machinery, the utility model embodiment provides anti-rollover control system and a kind of formula engineering machinery that makes a jack of a kind of outrigger reaction sensor, a kind of formula engineering machinery that makes a jack.In this technical scheme, be provided with the outrigger reaction sensor on each bar supporting leg, the reaction of bearing sum that four outrigger reaction sensors detect is the gross weight of engineering machinery and platform load, when the reaction of bearing sum of any two adjacent legs during less than the unstability threshold value set, control device can in time be exported the control signal that stops operation, the jib of control engineering machinery stops operation, and has improved the security of engineering machinery greatly.Below with specific embodiment and be described with reference to the accompanying drawings the utility model.
As Fig. 1 a and Fig. 1 b illustrated embodiment, the utility model outrigger reaction sensor comprises:
Correspondence is arranged at the distortion sensing element 19 in each sensing element layout chamber 14;
Support oil cylinder passes hole 15 and can pass when flexible for support oil cylinder, and mounting hole 16 is convenient to the outrigger reaction sensor is fixed.As shown in Figure 4, outrigger reaction sensor 10 is fixed between supporting leg beam 17 bottoms and the support oil cylinder flange 18 by securing member, the quantity of mounting hole 16 is specifically as follows four, securing member can adopt bolt, like this, the installation site of outrigger reaction sensor 10 is higher, is difficult for being damaged, also be not subject to the influence of roadbed situation or ground humidity, serviceable life is longer.
Preferably, elastic body 13 has and passes the support oil cylinder safety valve that hole 15 is communicated with support oil cylinder and dodge opening 22.This support oil cylinder safety valve is dodged opening 22 can make the outrigger reaction sensor by the safety valve of support oil cylinder, avoids bumping with it, and is convenient to install.
The wiring unit 20 preferred terminal boxes of fixedlying connected with elastic body 13 that adopt, terminal box inside is integrated with mould/number signal processing circuit.In addition, also can groove be set in elastomeric end, wiring unit be fixed in the groove of elastic body end.
Embodiment shown in Fig. 1 a and Fig. 1 b is first preferred embodiment of the present utility model.The concrete structure of this embodiment outrigger reaction sensor is:
Sensing element arranges that chamber 14 be round tube hole, and quantity is three, and three round tube holes and support oil cylinder safety valve are dodged opening 22 and be distributed in support oil cylinder and pass the circumferential of hole 15;
Among this embodiment, the peripheral shape of elastic body 13 is square, sensing element is arranged concrete shape, the quantity in chamber 14, and the structural design of distortion sensing element 19 can make the outrigger reaction sensor better, more uniform stressed, testing result is more accurately, comprehensively.
Embodiment shown in Fig. 2 a and Fig. 2 b is second preferred embodiment of the present utility model.The concrete structure of this embodiment outrigger reaction sensor is:
The lower surface of elastic body 13 has four horizontal breach 23, four horizontal breach 23 are distributed in circumferential and relative support oil cylinder safety valve that support oil cylinder passes hole 15 and dodge opening 22 and be symmetrically distributed, the upper surface of elastic body 13 has three horizontal grooves 24, each horizontal groove 24 between two adjacent horizontal breach 23, three horizontal grooves 24 and support oil cylinder safety valve dodge opening 22 be distributed in support oil cylinder pass hole 15 circumferentially;
Sensing element arranges that chamber 14 is blind hole, and quantity is six, and each blind hole is positioned at being connected root and leading to the outside of elastic body 13 of adjacent a pair of horizontal breach 23 and horizontal groove 24;
Among this embodiment, horizontal breach 23 makes elastic body 13 have " semi-girder " formula elastic construction with horizontal groove 24, sensing element is arranged concrete shape, the quantity in chamber 14, and the structural design of distortion sensing element 19 can make equally the outrigger reaction sensor better, more uniform stressed, testing result is comparatively accurately, comprehensively.
More than among two embodiment, the form of electric bridge is not limit, for example can be full-bridge form, half-bridge form, 1/4 bridge form etc., the preferred full-bridge form that adopts, mV by electric bridge output or mA signal are converted to pressure and change that (connection of electric bridge belongs to existing known technology, not shown in the drawings), testing result is more fast, accurately.Because silica gel has preferable elasticity, viscosity and insulativity, therefore, the piezoresistive strain sheet is preferably pasted by silica gel.
Embodiment shown in Figure 3 is the 3rd preferred embodiment of the present utility model.The concrete structure of this embodiment outrigger reaction sensor is:
Sensing element arranges that chamber 14 be horizontal grooving, and quantity is four, is distributed in the circumferential and relative support oil cylinder safety valve that support oil cylinder passes hole 15 and dodges opening 22 symmetrical distributions;
Among this embodiment, pressure-sensitive concrete material is not limit, preferred pressure-sensitive of the pottery that adopts.Four pressure-sensitive of potteries are arranged in the horizontal grooving of 13 4 jiaos on square elastic body, and have securing member respectively by hole 25.Horizontal grooving and pressure-sensitive concrete shape is not limit, and can adopt common square etc.In like manner, because sensing element is arranged chamber 14 among this embodiment concrete shape, quantity, and the reasonable in design of distortion sensing element 19, the outrigger reaction sensor can be better, more uniform stressed, and testing result comparatively accurately, comprehensively.
As shown in Figure 5, the utility model embodiment also provides a kind of anti-rollover control system of the formula engineering machinery that makes a jack, and comprising:
Corresponding each bar supporting leg institute respectively setting outrigger reaction sensor 10(be outrigger reaction sensor a, outrigger reaction sensor b, outrigger reaction sensor c, outrigger reaction sensor d, can adopt any one version among Fig. 1 a, Fig. 2 a and Fig. 3), the reaction of bearing that each outrigger reaction sensor 10 bears for detection of corresponding supporting leg;
The reaction of bearing sum that four outrigger reaction sensors 10 detect is the gross weight of engineering machinery and platform load, when the reaction of bearing sum of any two adjacent legs during less than the unstability threshold value set, control device 11 can in time be exported the control signal that stops operation, the jib of control engineering machinery stops operation, at this moment, actions such as jib only can be done to regain, past safety zone revolution, it is constant perhaps to maintain the original state.Compared with prior art, outrigger reaction sensor 10 can be measured the stressing conditions of supporting leg accurately, timely and reflect the safety case of whole engineering machinery, control device 11 output stop operation control signal in time the jib of control engineering machinery stop operation, thereby avoid the generation of overthrow accident.Technical solutions of the utility model are subsided applicable to roadbed injustice, roadbed or various situations such as soft roadbed, and the security of engineering machinery is greatly enhanced.
Along with the continuous variation in amplitude, luffing angle and the operation orientation of jib, when adjacent two supporting leg built on stilts, the engineering machinery unstability.The reaction of bearing sum of adjacent two supporting legs when the unstability threshold value of setting refers to that engineering machinery is in the unstability critical conditions of setting.The unstability threshold value of this setting specifically can require according to specifications parameter, the relevant criterion of engineering machinery or experience is determined.For example, European EN standard-required " adjacent two supporting legs can not liftoffly maybe can not lose reaction of bearing " through the mechanical model analysis, can be made as 10% of engineering machinery and platform load gross weight with the unstability threshold value of setting.
As a more excellent embodiment, control device 11 also is used for exporting conventional alerting signal when the reaction of bearing of arbitrary supporting leg is not more than zero; Anti-rollover control system also comprises:
The warning device 12 that is connected with control device 11 signals is used for carrying out routine according to conventional alerting signal and reports to the police.
The formula that makes a jack engineering truck is in operation or experimentation; continuous variation along with amplitude, luffing angle and the operation orientation of jib; the force-bearing situation of each supporting leg is also constantly changing; certain supporting leg built on stilts fine pitch takes place through regular meeting; but this does not also mean that the engineering machinery unstability; because also have this moment other three supporting legs supporting, engineering machinery still can work on.But three supporting leg propping works machineries will cause vehicle frame and revolution to support the generation torsional deformation, thereby have influence on the serviceable life of engineering machinery critical component.When the reaction of bearing of arbitrary supporting leg is not more than zero, the conventional alerting signal of control device 11 outputs, warning device 12 carries out routine according to conventional alerting signal and reports to the police, like this, in time alert is noted the duty of supporting leg, adjust amplitude, luffing angle and the operation orientation of jib in suitable scope of work, so the technical scheme that provides of this embodiment has also further prolonged the serviceable life of engineering machinery critical component.
For example, suppose F
R, F
R+1, F
R+2, F
R+3The reaction of bearing of representing each supporting leg respectively, F
AThe reaction of bearing sum of four supporting legs of expression, the gross weight of engineering machinery and platform load just, then
Work as F
R, F
R+1, F
R+2, F
R+3Arbitrary when being not more than zero, the conventional alerting signal of control device 11 outputs;
As ∑ (F
R, F
R+1)/F
A, ∑ (F
R+1, F
R+2)/F
A, ∑ (F
R+2, F
R+3)/F
A, ∑ (F
R+3, F
R)/F
AIn arbitrary less than 10% o'clock, the control device 11 output control signal that stops operation.
As a more excellent embodiment, warning device 12 also is used for carrying out danger warning according to the control signal that stops operation;
In each embodiment of the utility model anti-rollover control system, control device 11 can adopt DSP(digital signal processor, and digital signal processing is called for short DSP) controller, also can adopt single-chip microcomputer or embedded system etc.Each outrigger reaction sensor 10 can convert the force value that detects to digital signal through conditioning amplifying circuit, mould/number conversion and transmission circuit, then by CAN(Controller Area Network, controller local area network is called for short CAN) bus is sent to control device 11; Also can be sent to control device 11 by RS485 bus, RS232 serial mode, perhaps export simulating signal, not do concrete restriction here.Warning device 12 carries out the particular type of conventional warning and danger warning not to be limit, but operating personnel are distinguished easily, for example, can select forms such as sound and light alarm, literal display alarm or figure display alarm for use.
The utility model embodiment also provides a kind of formula engineering machinery that makes a jack, and comprises the described anti-rollover control system of aforementioned arbitrary embodiment.Its particular type is not limit, and for example can be concrete mixer, aerial ladder, lorry-mounted crane, truck-mounted crane etc.The outrigger reaction sensor can be measured the stressing conditions of supporting leg accurately, timely and reflect the safety case of whole engineering machinery, control device output stop operation control signal in time the jib of control engineering machinery stop operation, thereby avoid the generation of overthrow accident, therefore, this formula engineering machinery that makes a jack has higher security.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (10)
1. an outrigger reaction sensor is characterized in that, comprising:
Elastic body (13), have at least one sensing element and arrange chamber (14), and the support oil cylinder that is positioned at the middle part passes hole (15) and is positioned at one group of mounting hole (16) of periphery, described elastic body (13) be fixed in bottom the supporting leg beam (17) by the securing member that is arranged at one group of mounting hole (16) and support oil cylinder flange (18) between;
Correspondence is arranged at the distortion sensing element (19) that each sensing element arranges that chamber (14) is interior;
Wiring unit (20) is connected with each distortion sensing element (19) signal and has an output port (21).
2. outrigger reaction sensor as claimed in claim 1 is characterized in that, described elastic body (13) has and passes the support oil cylinder safety valve that hole (15) is communicated with support oil cylinder and dodge opening (22).
3. outrigger reaction sensor as claimed in claim 2 is characterized in that,
Described sensing element arranges that chamber (14) be round tube hole, and quantity is three, and described three round tube holes and support oil cylinder safety valve are dodged opening (22) and be distributed in support oil cylinder and pass the circumferential of hole (15);
Described distortion sensing element (19) is four piezoresistive strain sheets, is attached at 45 degree directions, 135 degree directions, 225 degree directions and the 315 degree directions of round tube hole hole wall respectively, and forms bridge circuit.
4. outrigger reaction sensor as claimed in claim 2 is characterized in that,
The lower surface of described elastic body (13) has four horizontal breach (23), described four horizontal breach (23) are distributed in circumferential and relative support oil cylinder safety valve that support oil cylinder passes hole (15) and dodge opening (22) and be symmetrically distributed, the upper surface of described elastic body (13) has three horizontal grooves (24), each horizontal groove (24) is positioned between adjacent two horizontal breach (23), described three horizontal grooves (24) and support oil cylinder safety valve dodge opening (22) be distributed in support oil cylinder pass hole (15) circumferentially;
Described sensing element arranges that chamber (14) is blind hole, and quantity is six, and each blind hole is positioned at being connected root and leading to the outside of elastic body (13) of adjacent a pair of horizontal breach (23) and horizontal groove (24);
Described distortion sensing element (19) is two piezoresistive strain sheets, and square crossing is attached at the bottom of blind hole, is 45 degree angles with horizontal direction, forms bridge circuit.
5. outrigger reaction sensor as claimed in claim 2 is characterized in that,
Described sensing element arranges that chamber (14) be horizontal grooving, and quantity is four, is distributed in the circumferential and relative support oil cylinder safety valve that support oil cylinder passes hole (15) and dodges opening (22) symmetrical distribution;
Described distortion sensing element (19) is for being positioned at pressure-sensitive of described horizontal grooving.
6. outrigger reaction sensor as claimed in claim 1 is characterized in that, described wiring unit (20) is the terminal box of fixedlying connected with elastic body (13), and described terminal box inside is integrated with mould/number signal processing circuit.
7. the anti-rollover control system of formula engineering machinery that makes a jack is characterized in that, comprising:
Corresponding each bar supporting leg institute respectively setting as each described outrigger reaction sensor (10) of claim 1 ~ 6, the reaction of bearing that each outrigger reaction sensor (10) bears for detection of corresponding supporting leg;
Control device (11), signal connects the output port of each outrigger reaction sensor (10), be used for when the reaction of bearing sum of any two adjacent legs during less than the unstability threshold value of setting, export the control signal that stops operation, the jib of control engineering machinery stops operation, wherein, the unstability threshold value of described setting is the reaction of bearing sum of engineering machinery adjacent two supporting legs when being in the unstability critical conditions of setting.
8. anti-rollover control system as claimed in claim 7 is characterized in that, described control device (11) also is used for exporting conventional alerting signal when the reaction of bearing of arbitrary supporting leg is not more than zero; Described anti-rollover control system also comprises:
The warning device (12) that is connected with control device (11) signal is used for carrying out routine according to described conventional alerting signal and reports to the police.
9. anti-rollover control system as claimed in claim 8 is characterized in that, described warning device (12) also is used for carrying out danger warning according to the described control signal that stops operation;
Described control device (11) when also surpassing the time threshold of setting for report to the police when routine duration or danger warning duration, is exported the control signal of cutting off the power supply, the outage of control engineering machinery.
10. the formula engineering machinery that makes a jack is characterized in that, comprises as right wanting each described anti-rollover control system in 7 ~ 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320085304 CN203069298U (en) | 2013-02-25 | 2013-02-25 | Landing leg counter-force sensor, anti-tipping control system and landing leg type engineering machinery |
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|---|---|---|---|
| CN 201320085304 CN203069298U (en) | 2013-02-25 | 2013-02-25 | Landing leg counter-force sensor, anti-tipping control system and landing leg type engineering machinery |
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| CN203069298U true CN203069298U (en) | 2013-07-17 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600731A (en) * | 2013-11-28 | 2014-02-26 | 河北亚峰专用汽车制造有限公司 | Connecting mechanism of concrete pump truck leg and supporting cylinder |
| CN103863267A (en) * | 2014-03-24 | 2014-06-18 | 中联重科股份有限公司 | Engineering vehicle and supporting leg device and supporting leg assembly thereof |
| CN104591050A (en) * | 2014-11-28 | 2015-05-06 | 杭州爱知工程车辆有限公司 | Overhead working truck tipping prevention control method |
| CN108248567A (en) * | 2018-02-09 | 2018-07-06 | 上海宏英智能科技有限公司 | A kind of wireless pressure detects outrigger plate |
| CN110588594A (en) * | 2019-10-18 | 2019-12-20 | 三一汽车起重机械有限公司 | Supporting leg type engineering machinery |
| CN110646126A (en) * | 2019-10-25 | 2020-01-03 | 三一汽车起重机械有限公司 | Landing leg reaction force sensor and landing leg type engineering machinery |
| CN114252192A (en) * | 2020-09-22 | 2022-03-29 | 中联重科股份有限公司 | Method and apparatus for diagnosing a force reaction sensor assembly |
| CN114687561A (en) * | 2020-12-31 | 2022-07-01 | 三一汽车制造有限公司 | Method and device for controlling working machine and working machine |
-
2013
- 2013-02-25 CN CN 201320085304 patent/CN203069298U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600731A (en) * | 2013-11-28 | 2014-02-26 | 河北亚峰专用汽车制造有限公司 | Connecting mechanism of concrete pump truck leg and supporting cylinder |
| CN103863267A (en) * | 2014-03-24 | 2014-06-18 | 中联重科股份有限公司 | Engineering vehicle and supporting leg device and supporting leg assembly thereof |
| CN103863267B (en) * | 2014-03-24 | 2016-09-14 | 中联重科股份有限公司 | Engineering vehicle and supporting leg device and supporting leg assembly thereof |
| CN104591050A (en) * | 2014-11-28 | 2015-05-06 | 杭州爱知工程车辆有限公司 | Overhead working truck tipping prevention control method |
| CN108248567A (en) * | 2018-02-09 | 2018-07-06 | 上海宏英智能科技有限公司 | A kind of wireless pressure detects outrigger plate |
| CN110588594A (en) * | 2019-10-18 | 2019-12-20 | 三一汽车起重机械有限公司 | Supporting leg type engineering machinery |
| CN110646126A (en) * | 2019-10-25 | 2020-01-03 | 三一汽车起重机械有限公司 | Landing leg reaction force sensor and landing leg type engineering machinery |
| CN114252192A (en) * | 2020-09-22 | 2022-03-29 | 中联重科股份有限公司 | Method and apparatus for diagnosing a force reaction sensor assembly |
| CN114687561A (en) * | 2020-12-31 | 2022-07-01 | 三一汽车制造有限公司 | Method and device for controlling working machine and working machine |
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