CN101723256B - Articulated front-handling mobile crane and operation control system thereof - Google Patents
Articulated front-handling mobile crane and operation control system thereof Download PDFInfo
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- CN101723256B CN101723256B CN2008101732798A CN200810173279A CN101723256B CN 101723256 B CN101723256 B CN 101723256B CN 2008101732798 A CN2008101732798 A CN 2008101732798A CN 200810173279 A CN200810173279 A CN 200810173279A CN 101723256 B CN101723256 B CN 101723256B
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- mobile crane
- handling mobile
- articulated front
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Abstract
The invention discloses an articulated front-handling mobile crane. The crane comprises at least one braking device, wherein at least one of a front-left wheel or a front-right wheel of the articulated front-handling mobile crane can be independently braked by the braking device. The invention also provides an operation control system for the articulated front-handling mobile crane, which comprises at least one braking device, an independent brake switch, a safety device, a vehicle speed monitoring device and a control device. The articulated front-handling mobile crane can take a front wheel on any side thereof as the center for steering, so the articulated front-handling mobile crane can remarkably reduce steering radius and improve placing accuracy and small-space activity ability of heavy objects. At the same time, the articulated front-handling mobile crane can also ensure that the braking device cannot be started during high-speed operation further to improve safety performance and ensure the safety of personnel, equipment and loads.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly relate to a kind of operation control system of articulation steering formula front-handling mobile crane.In addition, the invention still further relates to a kind of articulation steering formula front-handling mobile crane.
Background technology
Along with China's rapid economy development, market increases day by day for the demand of front-handling mobile crane, and particularly at container wharf, front-handling mobile crane is being brought into play irreplaceable effect.
Compare with traditional fork truck, front-handling mobile crane has two big characteristics: the first can be striden casing working, be that front-handling mobile crane can be crossed over the plurality of rows freight container and hangs, puts operation to what position freight container far away carried out, even can stride across the railroad train operation; It two is that front-handling mobile crane can be lowerd crane arm and make its downward-sloping suitable angle in some cases, thereby can load and unload the lower freight container of deposit position, is particularly useful for the loading and unloading of inland river Container barge, thereby replaces the bank bridge.In addition, compare with fork truck, the hoisting capacity of front-handling mobile crane is big, operation is comparatively flexible, can make the freight container storage power of stockyard unit area and handling efficiency improve the expense of reducing investment outlay.
Obviously, front-handling mobile crane should possess higher flexibility and accuracy in operation process.But, along with people to improving constantly that the stockyard service efficiency requires, the alerting ability of conventional front-handling mobile crane can not meet the demands.
Articulated front-handling mobile crane has appearred in recent years.The two sections car bodies in the front and back of articulation steering formula front-handling mobile crane are articulated in one, and the top of the operator's compartment that is positioned at the hinge-point leading portion partly is fixed in its operation; Usually by near the articulated position turn to oil cylinder promote hinge before and after two sections car bodies relatively rotate, thereby realize turning to.When obviously, turning to the turn radius of articulation steering formula front-handling mobile crane less relatively, turn to flexible relatively.Therefore, the alerting ability of articulation steering formula front-handling mobile crane has satisfied actual demand in a quite long period.
But along with the further raising that people require the stockyard service efficiency, articulation steering formula front-handling mobile crane also can not meet the demands gradually.Existing articulation steering formula front-handling mobile crane or freight container pile up that the position is not accurate enough, the stockyard service efficiency is relatively low, or causing front-handling mobile crane to be sought repeatedly accurately piles up the position, makes its work efficiency lower.
Existing articulated front-handling mobile crane more and more can not satisfy flexibly, accurately pile up the needs of freight container, must address this problem early.Therefore, how improving the alerting ability of existing articulated front-handling mobile crane, is the present technical issues that need to address of those skilled in the art.
Summary of the invention
The purpose of this invention is to provide a kind of articulated front-handling mobile crane, turn radius is less in the steering procedure, thereby has higher flexibility and accuracy.Another object of the present invention provides a kind of operation control system of articulated front-handling mobile crane, can significantly significantly improve the alerting ability and the accuracy of articulated front-handling mobile crane operation process under the prerequisite that guarantees higher-security.
For solving the problems of the technologies described above, the invention provides a kind of articulated front-handling mobile crane, comprising:
At least one brake equipment, at least one can be by described brake equipment independent brake in the near front wheel of articulated front-handling mobile crane or the off front wheel;
Control setup, described control setup limits described brake equipment so that it can't start during the predetermined condition achievement;
Speed of a motor vehicle monitoring device, described speed of a motor vehicle monitoring device be the running velocity of the articulated front-handling mobile crane of monitoring in real time, and its monitor value is passed to described control setup; When the running velocity of articulated front-handling mobile crane during greater than setting value, described predetermined condition achievement.
Preferably, articulated front-handling mobile crane further comprises safety device, and described control setup was by the startup of the described brake equipment of described safety devices limit when described predetermined condition was achieved.
Preferably, described setting value be 5 kms/hour.
Preferably, the number of described brake equipment is one, and is used to brake the near front wheel of articulated front-handling mobile crane.
Preferably, articulated front-handling mobile crane further comprises indicating device; When described brake equipment started, described indicating device sent signal to the operator.
Articulated front-handling mobile crane provided by the present invention comprises at least one brake equipment, and at least one can be by described brake equipment independent brake in the near front wheel of articulated front-handling mobile crane or the off front wheel.Therefore, when needing to adjust attitude, can be by the side front-wheel of described brake equipment with articulated front-handling mobile crane, for example the near front wheel independent brake.This moment, articulated front-handling mobile crane can be that the center turns to described the near front wheel; Situation when not having independent brake with described the near front wheel is compared, the Turning radius of articulated front-handling mobile crane will can accurately be positioned over preposition with weight by the attitude of adjusting other wheels significantly with little (Turning radius of front-wheel can equal the width of car body substantially outside this moment) behind the independent brake in less space; That is, the weight of articulated front-handling mobile crane is put accuracy rate and little space operation ability is significantly improved.
As a kind of improvement, may further include control setup, safety device and speed of a motor vehicle monitoring device, described speed of a motor vehicle monitoring device is the running velocity of the articulated front-handling mobile crane of monitoring in real time, and its monitor value is passed to described control setup; When the running velocity of articulated front-handling mobile crane during greater than setting value, described control setup by the described brake equipment of described safety devices limit so that its can't start.Like this, when the running velocity of articulated front-handling mobile crane was higher, even the operator sends instruction, described brake equipment can not start yet; If the near front wheel independent brake when fair speed is moved, whole articulated front-handling mobile crane may be tumbled.By abovementioned technology, the safety performance of articulated front-handling mobile crane provided by the present invention significantly improves, and can avoid the generation of accident, guarantees job safety.
The present invention also provides a kind of operation control system of articulated front-handling mobile crane, comprises at least one brake equipment, the near front wheel or off front wheel that can the articulated front-handling mobile crane of independent brake; The independent brake switch can start or cut out described brake equipment according to operator's selection; Safety device can limit described brake equipment during startup so that the latter can't start; Speed of a motor vehicle control monitor unit is monitored the running velocity of articulated front-handling mobile crane in real time, and its monitor value is passed to control setup; Control setup is according to the keying from the vehicle speed signal of described speed of a motor vehicle control monitor unit and predetermined policy control fender guard.
Preferably, the running velocity of articulated front-handling mobile crane greater than 5 kms/hour situation under, described control setup starts described fender guard.
Preferably, the operation control system of articulated front-handling mobile crane further comprises indicating device; When described brake equipment started, described indicating device sent signal to the operator.
It is that the center turns to its either side front-wheel that the operation control system of articulated front-handling mobile crane provided by the present invention can make articulated front-handling mobile crane, thereby can significantly reduce Turning radius, improve weight and put accuracy rate and little space operation ability.Simultaneously, described brake equipment can not start when the operation control system of articulated front-handling mobile crane provided by the present invention can also be guaranteed the higher speed operation, and then had improved safety performance, guaranteed personnel, equipment and the safety of hanging loading.Specifically can be with reference to above about the description of articulated front-handling mobile crane provided by the present invention.
Description of drawings
Fig. 1 is the schematic side view of articulated front-handling mobile crane provided by the present invention in a kind of specific embodiment;
Fig. 2 is the schematic top plan view of articulated front-handling mobile crane shown in Figure 1;
Fig. 3 is the structural representation of the operation control system of articulated front-handling mobile crane provided by the present invention in a kind of specific embodiment.
The specific embodiment
Core of the present invention provides a kind of articulated front-handling mobile crane, and turn radius is less in the steering procedure, thereby has higher flexibility and accuracy.Another core of the present invention provides a kind of operation control system of articulated front-handling mobile crane, can significantly significantly improve the alerting ability and the accuracy of articulated front-handling mobile crane operation process under the prerequisite that guarantees higher-security.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the schematic side view of articulated front-handling mobile crane provided by the present invention in a kind of specific embodiment; Fig. 2 is the schematic top plan view of articulated front-handling mobile crane shown in Figure 1.
In a kind of specific embodiment, articulated front-handling mobile crane 1 provided by the present invention has front truck part 11 and back car part 12, and both vertically are provided with and are articulated in one by articulation piece 13 (being shown among Fig. 2).
Crane arm 14 is arranged at the top of front truck part 11.Specifically, can on front truck part 11, fixedly mount support component 15, and the rearward end of crane arm 14 is rotatably supported by support component 15.Simultaneously, amplitude oil cylinder 16 is set on the vehicle frame of front truck part 11, the bottom of amplitude oil cylinder 16 can be hinged with vehicle frame, and its top can be articulated in the middle part or the postmedian of crane arm 14; Like this, along with the elongation or the shortening of amplitude oil cylinder 16, crane arm 14 and the weight that is carried thereof can be realized luffing.
Turning to of crane arm 14 and the weight that carried thereof is the realization that turns to by front truck part 11.As shown in Figure 2, can install two between front truck part 11 and back car part 12 and turn to oil cylinder, promptly the left side turns to oil cylinder 181 and right hand steering oil cylinder 182, and both are all generally along vertical setting of articulated front-handling mobile crane 1.Simultaneously, the left side turns to oil cylinder 181 and right hand steering oil cylinder 182 should lay respectively at the both sides of articulation piece 13, like this, turns to the cooperation of oil cylinder 181 and right hand steering oil cylinder 182 flexible by side, can realize front truck part 11 turning to respect to back car part 12.
For example, can extend the left side and turn to oil cylinder 181 and shrink right hand steering oil cylinder 182 simultaneously, can realize the right-hand rotation of front truck part 11 this moment.Like this, crane arm 14 and the weight that carried thereof can be realized turning to front truck part 11.
If only turn to the problem that to avoid Turning radius excessive in the above described manner.With the right-hand rotation is example, and the turning center of above-mentioned steering procedure is positioned on the near front wheel 171 and the off front wheel 172 rotating shaft lines, and is positioned at the right side of off front wheel 172.
And articulated front-handling mobile crane 1 provided by the present invention can make turning center be positioned on the near front wheel 171 or on the off front wheel 172.
Please also refer to Fig. 3, Fig. 3 is the structural representation of the operation control system of articulated front-handling mobile crane provided by the present invention in a kind of specific embodiment.
Articulated front-handling mobile crane 1 provided by the present invention further comprises brake equipment 25, and brake equipment 25 can be provided with one or two.Can be separately when a brake equipment 25 only is set with the near front wheel 171 or separately with off front wheel 172 brakings, but for the consideration that improves safety, suggestion brake equipment 25 independent brake the near front wheels 171 this moment; When two brake equipments 25 were set, both can distinguish separately with the near front wheel 171 or off front wheel 172 brakings.
Particularly, brake equipment 25 can comprise the independent brake relay K 2 of independent brake air chamber C, change-over valve V1, bilateral check valve V2, pin relay valve V3 and control change-over valve V1, and above-mentioned each parts are according to connection shown in Figure 3.Node P1 connects braking gas source, node P2 connecting pin brake activation valve among Fig. 3.Wherein, the keying that the folding condition of independent brake relay K 2 can control brake device 25; Can control the folding condition of independent brake relay K 2 by the independent brake switch S 2 that is in series with independent brake relay K 2.Certainly, brake equipment 25 also can have other conventional structures.
During work, the operator can pass through independent brake switch S 2 control brake devices 25, and then with the braking of the front-wheel (for example the near front wheel 171) of articulated front-handling mobile crane 1 one sides, the turning center of front truck part 11 will be positioned at the position at the near front wheel 171 places at this moment, the Turning radius of outside front-wheel (being off front wheel 172) is the wheelspan of both sides front-wheel, and Turning radius significantly reduces.Since crane arm 14 with and the weight that hung year turn to front truck part 11, so the Turning radius of weight also significantly reduces, thereby the order of accuarcy of articulated front-handling mobile crane 1 operation and the mobility in less space are all strengthened.
Under the fair speed running state, if a side front-wheel of independent brake articulated front-handling mobile crane 1 may cause it to tumble; In order to improve safety performance, articulated front-handling mobile crane 1 may further include control setup 21.
Storing predetermined in advance safety control strategy in the control setup 21 can't start brake equipment 25 when predetermined condition satisfies timed unit 21 according to this safety control strategy.
Particularly, when above-mentioned predetermined condition satisfied, control setup 21 can can't start brake equipment 25 by safety device 23.Safety device 23 specifically can comprise the safety switch S4 that is connected in series mutually with independent brake relay K 2, independent brake switch S 2, and the safety relay K1 of control safety switch S4 break-make.
When above-mentioned predetermined condition satisfies, control setup 21 disconnects safety switch S4 by safety relay K1, and this moment, no matter how the operator controlled independent brake switch S 2, and independent brake relay K 2 also can't start, therefore brake equipment 25 can not be activated, thereby guarantees job safety.
Can above-mentioned predetermined condition be set according to the actual job environment, usually, should when articulated front-handling mobile crane 1 running velocity is higher, avoid the front-wheel single shoe brake.Therefore, articulated front-handling mobile crane 1 may further include speed of a motor vehicle monitoring device 22, and speed of a motor vehicle monitoring device 22 can be monitored the running velocity of articulated front-handling mobile crane 1 in real time, and its monitor value is passed to control setup 21 in real time; When the running velocity of articulated front-handling mobile crane 1 during greater than setting value, described predetermined condition achievement, brake equipment 25 can't start.
The scope of the running velocity setting value of above-mentioned articulated front-handling mobile crane 1 can be 4 kms/hour to 6 kms/hour, for example, above-mentioned setting value specifically can be set at 5 kms/hour, promptly the running velocity of articulated front-handling mobile crane 1 greater than 5 kms/hour situation under, brake equipment 25 can't start.
Articulated front-handling mobile crane 1 can further include read out instrument 26, and when starting with convenient brake equipment 25, indicating device 26 can send the signal of forms such as sound, light to the operator.Read out instrument 26 specifically can comprise braking indicator lamp H and braking detector switch S3, braking detector switch S3 closure when brake equipment 25 starts, and therefore braking indicator lamp H sends optical signal to the operator.Like this, the operator can accurately hold brake equipment 25 present located states, thereby can select the operation that suits, helps the further raising of operational security.
Certainly, conventional components such as power supply G, insurance F, source switch S1 also should possess, and its connection mode can be with reference to figure 3.
The operation control system of articulated front-handling mobile crane provided by the present invention comprises at least one brake equipment 25, independent brake switch S 2, safety device 23, speed of a motor vehicle control monitor unit 22 and control setup 21; Wherein, brake equipment 25 can independent brake articulated front-handling mobile crane 1 the near front wheel 171 or off front wheel 172; independent brake switch S 2 can start or close brake equipment 25 according to operator's selection; safety device 23 can limit brake equipment 25 so that the latter can't start when starting; speed of a motor vehicle control monitor unit 22 is the running velocity of monitoring articulated front-handling mobile crane 1 in real time; and its monitor value passed to control setup 21, control setup 22 is according to the keying from received vehicle speed signal of speed of a motor vehicle control monitor unit 21 and predetermined policy control fender guard 23.The structure of above-mentioned each component part and logical relation specifically can be with reference to Fig. 3.
Fender guard 23 can the running velocity of articulated front-handling mobile crane 1 greater than 5 kms/hour situation under controlled device 22 start; Certainly, the scope of above-mentioned running velocity as transformation point can be 4 kms/hour to 6 kms/hour.Like this, the safety of articulated front-handling mobile crane 1 can be effectively guaranteed.
The operation control system of articulated front-handling mobile crane provided by the present invention can further include indicating device 26; When brake equipment 25 started, indicating device 26 sent signals such as sound or light to the operator, be beneficial to the operator and make right judgement, guarantees job safety.
More than articulated front-handling mobile crane provided by the present invention and operation control system thereof are described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (8)
1. an articulated front-handling mobile crane is characterized in that, comprising:
At least one brake equipment, at least one can be by described brake equipment independent brake in the near front wheel of articulated front-handling mobile crane or the off front wheel;
Control setup, described control setup limits described brake equipment so that it can't start during the predetermined condition achievement;
Speed of a motor vehicle monitoring device, described speed of a motor vehicle monitoring device be the running velocity of the articulated front-handling mobile crane of monitoring in real time, and its monitor value is passed to described control setup; When the running velocity of articulated front-handling mobile crane during greater than setting value, described predetermined condition achievement.
2. articulated front-handling mobile crane as claimed in claim 1 is characterized in that, further comprises safety device, and described control setup was by the startup of the described brake equipment of described safety devices limit when described predetermined condition was achieved.
3. articulated front-handling mobile crane as claimed in claim 1 is characterized in that, described setting value be 5 kms/hour.
4. as each described articulated front-handling mobile crane of claim 1 to 3, it is characterized in that the number of described brake equipment is one, and be used to brake the near front wheel of articulated front-handling mobile crane.
5. as each described articulated front-handling mobile crane of claim 1 to 3, it is characterized in that, further comprise indicating device; When described brake equipment started, described indicating device sent signal to the operator.
6. the operation control system of an articulated front-handling mobile crane is characterized in that, comprising:
At least one brake equipment, the near front wheel or off front wheel that can the articulated front-handling mobile crane of independent brake;
The independent brake switch can start or cut out described brake equipment according to operator's selection;
Safety device can limit described brake equipment during startup so that the latter can't start;
Speed of a motor vehicle control monitor unit is monitored the running velocity of articulated front-handling mobile crane in real time, and its monitor value is passed to control setup;
Control setup is according to the keying from the vehicle speed signal of described speed of a motor vehicle control monitor unit and predetermined policy control fender guard.
7. the operation control system of articulated front-handling mobile crane as claimed in claim 6 is characterized in that, the running velocity of articulated front-handling mobile crane greater than 5 kms/hour situation under, described control setup starts described fender guard.
8. the operation control system of articulated front-handling mobile crane as claimed in claim 7 is characterized in that, further comprises indicating device; When described brake equipment started, described indicating device sent signal to the operator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101732798A CN101723256B (en) | 2008-10-31 | 2008-10-31 | Articulated front-handling mobile crane and operation control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101732798A CN101723256B (en) | 2008-10-31 | 2008-10-31 | Articulated front-handling mobile crane and operation control system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101723256A CN101723256A (en) | 2010-06-09 |
| CN101723256B true CN101723256B (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101732798A Expired - Fee Related CN101723256B (en) | 2008-10-31 | 2008-10-31 | Articulated front-handling mobile crane and operation control system thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2012203625B2 (en) * | 2012-06-21 | 2014-05-08 | Tidd Ross Todd Limited | An Articulated Pick and Carry Crane |
| WO2020154765A1 (en) * | 2019-01-30 | 2020-08-06 | Westfield Nominees Pty Ltd | Mobile crane |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3282367A (en) * | 1962-04-09 | 1966-11-01 | Matbro Ltd | Four-wheel drive tractors with trailer articulation means moved laterally automatically in response to the relative angular positions of the tractor axles |
| US3342282A (en) * | 1965-06-14 | 1967-09-19 | Harper Mfg Inc | Hydraulically driven articulated vehicle |
| US3498488A (en) * | 1968-08-27 | 1970-03-03 | Massey Ferguson Inc | Skidder with rear pivot limiting means |
| CN201325834Y (en) * | 2008-10-31 | 2009-10-14 | 徐州重型机械有限公司 | Hinged front crane and operation control system thereof |
-
2008
- 2008-10-31 CN CN2008101732798A patent/CN101723256B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3282367A (en) * | 1962-04-09 | 1966-11-01 | Matbro Ltd | Four-wheel drive tractors with trailer articulation means moved laterally automatically in response to the relative angular positions of the tractor axles |
| US3342282A (en) * | 1965-06-14 | 1967-09-19 | Harper Mfg Inc | Hydraulically driven articulated vehicle |
| US3498488A (en) * | 1968-08-27 | 1970-03-03 | Massey Ferguson Inc | Skidder with rear pivot limiting means |
| CN201325834Y (en) * | 2008-10-31 | 2009-10-14 | 徐州重型机械有限公司 | Hinged front crane and operation control system thereof |
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| CN101723256A (en) | 2010-06-09 |
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Granted publication date: 20111207 Termination date: 20191031 |