CN202369310U - Safety detection and control device for amplitude variation of movable arm of crane - Google Patents
Safety detection and control device for amplitude variation of movable arm of crane Download PDFInfo
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- CN202369310U CN202369310U CN2011205392218U CN201120539221U CN202369310U CN 202369310 U CN202369310 U CN 202369310U CN 2011205392218 U CN2011205392218 U CN 2011205392218U CN 201120539221 U CN201120539221 U CN 201120539221U CN 202369310 U CN202369310 U CN 202369310U
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- luffing
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- swing arm
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- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 230000006698 induction Effects 0.000 claims description 6
- 238000011897 real-time detection Methods 0.000 claims description 4
- 230000008602 contraction Effects 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 238000012797 qualification Methods 0.000 description 1
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Abstract
A safety detection and control device for the amplitude variation of a movable arm of a crane comprises a main arm and the movable arm, wherein the safety detection and control device comprises a main arm angle sensor, a movable arm angle sensor, a controller, a main arm extension proportional valve and a main arm contraction proportional valve; the main arm angle sensor and the movable arm angle sensor are respectively used for detecting the angle between the main arm and the movable arm in real time and accessing an angle signal to the controller; the controller controls the extending speed of the main arm through the main arm extension proportion valve according to different intervals of an included angle between the main arm and the movable arm, and controls the retraction speed of the main arm through the main arm retraction proportion valve. The utility model discloses can be according to the different intervals that the contained angle between main arm and the swing arm was located, come the speed limit or cut off main arm and stretch the proportional valve or the main arm contracts the proportional valve output to the flexible speed of control main arm, therefore can improve the security that the swing arm becomes the width of cloth.
Description
Technical field
The utility model relates to a kind of safety detection and control setup of hoisting crane luffing jib.
Background technology
The swing arm of hoisting crane is mounted in the principal arm head, can realizes the small-sized tower arm of electrodeless luffing by a small margin through the luffing steel rope.In stretching the principal arm process, swing arm under luffing steel rope tractive along with stretching out of principal arm luffing upwards; In the principal arm process that contracts, swing arm bounces back and downward luffing under the deadweight effect along with principal arm.For increasing work efficiency, it is flexible at full speed that the hoisting crane principal arm keeps as far as possible, also brought the potential safety hazard of luffing jib in the principal arm telescopic process thereupon.When stretching principal arm at full speed, swing arm possibly surpass the upwards end position of luffing, cause anti-hypsokinesis cylinder because of the hypertonia detonation, even swing arm is tumbled backward; In the principal arm process that contracts at full speed; The downward luffing of swing arm is during to end position, and swing arm deadweight meeting carries out the transition to the protection drag-line from the luffing steel rope suddenly, causes the luffing jib bounce-back to be rocked; If after the luffing steel rope loses traction force, reclaim again, then cause the luffing wire rope roll around disorder cable.
The utility model content
The utility model technical matters to be solved is, a kind of safety detection and control setup that improves the safety of hoisting crane luffing jib is provided.
The utility model is to realize like this; A kind of safety detection and control setup of hoisting crane luffing jib are provided; Said hoisting crane comprises principal arm and swing arm, and said safety detection and control setup comprise that principal arm angular transducer, swing arm angular transducer, controller, principal arm stretch apportioning valve and the principal arm apportioning valve that contracts; Said principal arm angular transducer and swing arm angular transducer are respectively applied for the angle of said principal arm of real-time detection and said swing arm, and angle signal is inserted said controller; Said controller is according to said principal arm and the residing different intervals of the angle between the said swing arm, and the speed of stretching out of stretching the said principal arm of proportional valve control through said principal arm is through the contract retraction speed of the said principal arm of proportional valve control of said principal arm.
Further, said controller set between the normal area of luffing jib, early warning interval and alarm, brake point; Angle between said principal arm and the said swing arm is on the swing arm between the luffing early warning point and following luffing early warning point the zone between the luffing normal area; It is interval for last luffing early warning that angle between said principal arm and the said swing arm is on the swing arm between the luffing early warning point and last luffing alarm set point the zone; It is regional between luffing early warning point and the following luffing alarm set point under angle between said principal arm and the said swing arm is in for the luffing early warning is interval down; When the angle between said principal arm and the said swing arm is in luffing early warning interval; Said controller is stretched the speed of stretching out that apportioning valve reduces principal arm through said principal arm; When the angle between said principal arm and the said swing arm is in down luffing early warning when interval, said controller reduces the retraction speed of principal arm through the said principal arm apportioning valve that contracts.
Further; Said safety detection and control setup comprise that also the detector switch that leans forward, hypsokinesis detector switch, the said detector switch that leans forward are used to detect the end position of the downward luffing of said swing arm; Said hypsokinesis detector switch is used to detect the make progress end position of luffing of said swing arm; The induction of signal point of the said detector switch that leans forward is following luffing alarm, brake point, and the induction of signal point of said hypsokinesis detector switch is last luffing alarm, brake point.
Further, said detector switch and the said hypsokinesis detector switch of leaning forward is installed on the anti-hypsokinesis cylinder of said hoisting crane.
Further, said safety detection and control setup also comprise buzzer phone, said controller control buzzer warning; When the angle between said principal arm and the said swing arm is in the interval or following luffing early warning of luffing early warning interval, the interrupted buzzing early warning of said buzzer phone; When the angle between said principal arm and the said swing arm reached luffing alarm set point or following luffing alarm set point, the continuous buzzing of said buzzer phone was reported to the police.
Further, said safety detection and control setup comprise further and said controller bonded assembly telltale that said telltale shows the angle numerical value between said principal arm and the said swing arm.
Further, said swing arm angular transducer is installed in the luffing hinge place of swing arm, and said principal arm angular transducer is installed in principal arm head place.
Compared with prior art; When safety detection of the utility model and control setup are used for the hoisting crane swing arm; Controller can detect the angle of principal arm and swing arm through principal arm angular transducer and swing arm angular transducer respectively in real time, and according to the residing different intervals of principal arm and the angle between the swing arm, comes speed limit or cut-out principal arm to stretch apportioning valve or the principal arm apportioning valve that contracts and exports; Thereby the stretching speed of control principal arm, the safety that improves luffing jib.
Above-mentioned explanation only is the general introduction of the utility model technical scheme; In order more to know the technological means of understanding the utility model; And can implement according to the content of specification sheets, and for let the above-mentioned of the utility model with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is the safety detection of hoisting crane luffing jib among the utility model one embodiment and the electrical schematic diagram of control setup.
Fig. 2 is used for the structural representation of the swing arm of hoisting crane for safety detection among the utility model one embodiment and control setup.
The specific embodiment
In order to make the utility model technical matters to be solved, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Shown in Figure 1 is the safety detection of hoisting crane luffing jib among the utility model one embodiment and the electrical schematic diagram of control setup 100.Shown in 1 figure, safety detection and control setup 100 comprise that the detector switch 120 that leans forward, hypsokinesis detector switch 130, swing arm angular transducer 140a, principal arm angular transducer 140b, controller 150, principal arm stretch apportioning valve 160, principal arm contract apportioning valve 170, buzzer phone 180 and telltale 190.Lean forward detector switch 120, hypsokinesis detector switch 130, swing arm angular transducer 140a, principal arm angular transducer 140b, principal arm stretched contract apportioning valve 170, buzzer phone 180 and telltale 190 of apportioning valve 160, principal arm and linked to each other with controller 150 respectively.
Fig. 2 is used for the scheme drawing of the swing arm of hoisting crane for safety detection among the utility model one embodiment and control setup 100.As shown in Figure 2, hoisting crane comprises principal arm head 210, swing arm 220, anti-hypsokinesis cylinder 230, luffing steel rope 240 and protection drag-line 250.Principal arm head 210, swing arm 220, anti-hypsokinesis cylinder 230, luffing steel rope 240 and protection drag-line 250 can existing connection mode fit together.
When safety detection and control setup 100 were used for the swing arm of hoisting crane, as shown in Figure 2, the detector switch 120 that leans forward can be installed on the anti-hypsokinesis cylinder 230 with hypsokinesis detector switch 130.Wherein, the detector switch 120 that leans forward can be used for detecting the end position of swing arm 220 downward luffings, and hypsokinesis detector switch 130 can be used for detecting the upwards end position of luffing of swing arm 220.
Swing arm angular transducer 140a can be installed in swing arm 220 luffing hinge places, in order to the angle value of real-time detection swing arm.Principal arm angular transducer 140b can be installed on the principal arm head 210, in order to the angle value of real-time detection principal arm.Wherein, the angle value that equals principal arm angular transducer 140b of the angle between principal arm and the swing arm deducts the angle value of swing arm angular transducer 140a.Lean forward, the signal access controller 150 of hypsokinesis detector switch 120,130 and swing arm, principal arm angular transducer 140a, 140b.Controller 150 signal logic is handled and set between the luffing jib normal area, early warning interval and alarm, brake point.Angle between principal arm and the swing arm 220 is on the swing arm between the luffing early warning point and following luffing early warning point the zone between the luffing normal area; It is interval for last luffing early warning that angle is on the swing arm between the luffing early warning point and last luffing alarm set point the zone, angle be in down between the luffing early warning point and following luffing alarm set point the zone be under luffing early warning interval.The detector switch 120 induction of signal points that lean forward are following luffing alarm, brake point, and hypsokinesis detector switch 130 induction of signal points are last luffing alarm, brake point.
Stretch out in the process at principal arm, when the angle between principal arm and the swing arm 220 was between the luffing normal area, telltale 192 can green show angle numerical value, does not limit the principal arm speed of stretching.When the angle between principal arm and the swing arm 220 was in luffing early warning interval, controller 150 reduced principal arm and stretches apportioning valve 160 outputs, reduced principal arm and stretched out speed, while telltale 190 yellow demonstration angle numerical value, buzzer phone 180 interrupted buzzing early warning.When the angle between principal arm and the swing arm 220 reached on the swing arm luffing alarm set point, controller 150 cut off principal arms and stretches apportioning valve 160 outputs, telltale 190 red display angle numerical value simultaneously, buzzer phone 180 continuous buzzings warnings.
In the principal arm retraction process, when the angle between principal arm and the swing arm 220 was between the luffing normal area, the telltale 190 green angle numerical value that show did not limit the principal arm speed that contracts.When the angle between principal arm and the swing arm 220 is in down luffing early warning when interval, controller 150 reduces principal arm apportioning valve 170 outputs of contracting, and reduces the principal arm retraction speed, and telltale 190 is yellow simultaneously shows angle numerical value, buzzer phone 180 interrupted buzzing early warning.When the angle between principal arm and the swing arm 220 is in when arriving down the luffing alarm set point, controller 150 cuts off principal arms apportioning valve 170 outputs of contracting, telltale 190 red display angle numerical value, buzzer phone 180 continuous buzzings warnings.
In sum; When safety detection in the utility model and control setup 100 are used for the swing arm of hoisting crane; Can set between the luffing jib normal area, early warning interval and alarm set point; Controller 150 can through lean forward, hypsokinesis detector switch 120,130 and swing arm, principal arm angular transducer 140a, 140b detect in real time that swing arm leans forward, hypsokinesis end position and angle are come speed limit or cut off principal arm and stretch the apportioning valve output of contracting of apportioning valve or principal arm, and utilize buzzer phone 180 to report to the police.Like this, safety detection in the utility model and control setup 100 safety that can improve luffing jib.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. the safety detection of a hoisting crane luffing jib and control setup; Said hoisting crane comprises principal arm and swing arm; It is characterized in that said safety detection and control setup comprise that principal arm angular transducer, swing arm angular transducer, controller, principal arm stretch apportioning valve and the principal arm apportioning valve that contracts; Said principal arm angular transducer and swing arm angular transducer are respectively applied for the angle of said principal arm of real-time detection and said swing arm, and angle signal is inserted said controller; Said controller is according to said principal arm and the residing different intervals of the angle between the said swing arm, and the speed of stretching out of stretching the said principal arm of proportional valve control through said principal arm is through the contract retraction speed of the said principal arm of proportional valve control of said principal arm.
2. the safety detection of hoisting crane luffing jib as claimed in claim 1 and control setup is characterized in that, said controller is set between the normal area of luffing jib, early warning interval and alarm, brake point; Angle between said principal arm and the said swing arm is on the swing arm between the luffing early warning point and following luffing early warning point the zone between the luffing normal area; It is interval for last luffing early warning that angle between said principal arm and the said swing arm is on the swing arm between the luffing early warning point and last luffing alarm set point the zone; It is regional between luffing early warning point and the following luffing alarm set point under angle between said principal arm and the said swing arm is in for the luffing early warning is interval down; When the angle between said principal arm and the said swing arm is in luffing early warning interval; Said controller is stretched the speed of stretching out that apportioning valve reduces principal arm through said principal arm; When the angle between said principal arm and the said swing arm is in down luffing early warning when interval, said controller reduces the retraction speed of principal arm through the said principal arm apportioning valve that contracts.
3. the safety detection of hoisting crane luffing jib as claimed in claim 2 and control setup; It is characterized in that; Said safety detection and control setup comprise that also the detector switch that leans forward, hypsokinesis detector switch, the said detector switch that leans forward are used to detect the end position of the downward luffing of said swing arm; Said hypsokinesis detector switch is used to detect the make progress end position of luffing of said swing arm; The induction of signal point of the said detector switch that leans forward is following luffing alarm, brake point, and the induction of signal point of said hypsokinesis detector switch is last luffing alarm, brake point.
4. the safety detection of hoisting crane luffing jib as claimed in claim 3 and control setup is characterized in that, said detector switch and the said hypsokinesis detector switch of leaning forward is installed on the anti-hypsokinesis cylinder of said hoisting crane.
5. the safety detection of hoisting crane luffing jib as claimed in claim 3 and control setup is characterized in that, said safety detection and control setup also comprise buzzer phone, said controller control buzzer warning; When the angle between said principal arm and the said swing arm is in the interval or following luffing early warning of luffing early warning interval, the interrupted buzzing early warning of said buzzer phone; When the angle between said principal arm and the said swing arm reached luffing alarm set point or following luffing alarm set point, the continuous buzzing of said buzzer phone was reported to the police.
6. like the safety detection and the control setup of each described hoisting crane luffing jib of claim 1 to 3; It is characterized in that; Said safety detection and control setup comprise further and said controller bonded assembly telltale that said telltale shows the angle numerical value between said principal arm and the said swing arm.
7. like the safety detection and the control setup of each described hoisting crane luffing jib of claim 1 to 3, it is characterized in that said swing arm angular transducer is installed in the luffing hinge place of swing arm, said principal arm angular transducer is installed in principal arm head place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205392218U CN202369310U (en) | 2011-12-21 | 2011-12-21 | Safety detection and control device for amplitude variation of movable arm of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205392218U CN202369310U (en) | 2011-12-21 | 2011-12-21 | Safety detection and control device for amplitude variation of movable arm of crane |
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| CN202369310U true CN202369310U (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205392218U Expired - Lifetime CN202369310U (en) | 2011-12-21 | 2011-12-21 | Safety detection and control device for amplitude variation of movable arm of crane |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101838A (en) * | 2013-01-31 | 2013-05-15 | 中联重科股份有限公司 | Tower arm follow-up control equipment, method and system and engineering machinery |
| CN103626060A (en) * | 2013-12-10 | 2014-03-12 | 徐工集团工程机械股份有限公司 | Limiting device of included angle between components, and crane |
| CN104692267A (en) * | 2015-01-22 | 2015-06-10 | 徐工集团工程机械股份有限公司 | Anti-hypsokinesis safe control device of crane arm frame |
| CN108715410A (en) * | 2018-08-08 | 2018-10-30 | 浙江三装备有限公司 | A kind of crawler crane tower condition intelligence cantilever lifting falls arm control device and control method |
-
2011
- 2011-12-21 CN CN2011205392218U patent/CN202369310U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101838A (en) * | 2013-01-31 | 2013-05-15 | 中联重科股份有限公司 | Tower arm follow-up control equipment, method and system and engineering machinery |
| CN103626060A (en) * | 2013-12-10 | 2014-03-12 | 徐工集团工程机械股份有限公司 | Limiting device of included angle between components, and crane |
| CN103626060B (en) * | 2013-12-10 | 2015-11-25 | 徐工集团工程机械股份有限公司 | The inhibiting device of angle and hoisting crane between parts |
| CN104692267A (en) * | 2015-01-22 | 2015-06-10 | 徐工集团工程机械股份有限公司 | Anti-hypsokinesis safe control device of crane arm frame |
| CN104692267B (en) * | 2015-01-22 | 2016-09-14 | 徐工集团工程机械股份有限公司 | A kind of crane arm support anti-hypsokinesis safety control |
| CN108715410A (en) * | 2018-08-08 | 2018-10-30 | 浙江三装备有限公司 | A kind of crawler crane tower condition intelligence cantilever lifting falls arm control device and control method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |