CN106364946B - Collision prevention device - Google Patents
Collision prevention device Download PDFInfo
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- CN106364946B CN106364946B CN201610975110.9A CN201610975110A CN106364946B CN 106364946 B CN106364946 B CN 106364946B CN 201610975110 A CN201610975110 A CN 201610975110A CN 106364946 B CN106364946 B CN 106364946B
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- collision
- trigger
- prevention device
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- collision prevention
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- 230000002265 prevention Effects 0.000 title claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000001960 triggered effect Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241000293001 Oxytropis besseyi Species 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Emergency Lowering Means (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The present invention relates to harbour machinery fields, disclose a kind of collision prevention device, it includes the bracket for being connected with external movable mechanism, elastic collision striker positioned at bracket side, and it is fixedly connected on the signal trigger assembly of the bracket other side, elastic collision striker is connect with signal trigger assembly by connector, wherein, signal trigger assembly includes the trigger member that defines the trigger switch of safety signal trigger area and can move relative to trigger switch, trigger member is connected with connector and is limited in safety signal trigger area by it, so that when elastic collision striker is when by external impact, connector drives trigger member beyond sending collision warning signal after safety signal trigger area, or trigger member loses limitation beyond sending collision warning signal after safety signal trigger area when connector fracture.Collision prevention device of the invention can accurately trigger collision alarm under various collision situations, to improve the anticollision precision of collision prevention device.
Description
Technical field
The present invention relates to harbour machinery fields, and in particular, to a kind of collision prevention device.
Background technique
At home and abroad in port mechanical equipment, such as stacker-reclaimer, ship loader, bucket unloader etc. are usually provided with largely
Movable mechanism, such as boom device, slip cylinder.However these movable mechanisms are easy to happen collision, pole at work
The damage of equipment is easily led to, to influence the normal work of equipment, even is also possible to lead to the injures and deaths of personnel when serious.
In order to solve the collision problem of these movable mechanisms, the prior art devises corresponding collision prevention device, these
The type of collision prevention device is predominantly following several:
1) arrange that wirerope, one end and the rigid support of wirerope are fixed in anticollision region, other end installation switch limit,
The pulling force of wirerope is set to change by external collision rigid support, to trigger collision alarm；
2) anti-collision baffle plate is installed in anticollision region, so that the angle displacement of baffle is changed by external collision baffle, from
And trigger collision alarm；
3) laser scanning or ultrasonic equipment are set in anticollision region, while GPS accurate positioning equipment is installed, by real-time
Collision alarm is triggered through PLC (programmable logic controller (PLC)) analytical calculation after 3-D scanning.
However, for existing collision prevention device, mentioned kind 1) in the anticollision of collision prevention device switch only in steel
Cord can just trigger collision alarm when tensing, and in actual collision, other than collision tenses wirerope, there is also installation branch
Situations such as frame leads to steel wire rope looseness, steel wire rope fracture because of collision deformation, the collision prevention device is will not to trigger collision at this time
Signal, therefore comprehensive preventing collision protection can not be carried out.And since mounting bracket is rigidity, bracket is often resulted in when colliding
Deformation or wire cable rupture, after exiting collision area, collision prevention device can not automatically reset, i.e., can not repair and play in time
Continue the effect of protection.
And type 2) in anti-collision baffle plate limited due to its structure, cannot do too big, the anticollision of large area be needed more
The combination of a anti-collision baffle plate is carried out using therefore occupied space is big, and signal receiving point is also more, is difficult to the jib structure of long range
Realization is comprehensively protected.In addition, anti-collision baffle plate can only receive the impact force of specific direction, i.e., it can only prevent touching for specific direction
It hits, comprehensive protection can not be realized to equipment.
Type 3) in using GPS be accurately positioned and laser (ultrasonic wave) scanning collision prevention device, although precision is higher,
But higher cost, control system are complicated.The precision and reliability of anticollision are also limited by site environment and weather condition simultaneously.
In view of the deficiencies of the prior art mentioned above, there is an urgent need to seek a kind of anticollision dress by those skilled in the art
It sets, collision alarm can be accurately triggered under various collision situations, so that the anticollision precision of collision prevention device is improved,
To make up the deficiencies in the prior art place.
Summary of the invention
The object of the present invention is to provide a kind of collision prevention devices, can accurately trigger and touch under various collision situations
Signal is hit, to improve the anticollision precision of collision prevention device.
To achieve the goals above, the present invention provides a kind of collision prevention device, the collision prevention device include for it is outer
The connected bracket of the movable mechanism in portion, the elastic collision striker positioned at bracket side, and it is fixedly connected on the bracket other side
Signal trigger assembly, elastic collision striker are connect with signal trigger assembly by connector, wherein signal trigger assembly includes limiting
The trigger member that has the trigger switch of safety signal trigger area and can be moved relative to trigger switch, trigger member and connector phase
Even and it is defined in safety signal trigger area by it, so that when elastic collision striker is when by external impact, connector band
Beyond sending collision warning signal after safety signal trigger area, or when connector fracture, trigger member loses limitation to dynamic trigger member
Beyond sending collision warning signal after safety signal trigger area.
Preferably, one end of the connection connector of elastic collision striker and trigger member are located at same level axial location.
Preferably, trigger member includes the tubular shell being fixedly connected with bracket and is located at the intracorporal frizzen of tubular shell, with
And the elastic component between tubular shell and frizzen, wherein one end of frizzen passes through bracket and connect with connector, triggers
The other end of bar includes compressing end, and elastic component is arranged in by tubular shell, bracket and compresses in the region that end limits.
Preferably, trigger switch is located at the inner wall of tubular shell.
Preferably, trigger member includes the tubular shell being fixedly connected with bracket and is located at the intracorporal frizzen of tubular shell, with
And the elastic component between tubular shell and frizzen, wherein one end of frizzen passes through bracket and connect with connector, triggers
The other end of bar includes compressing end, and the outer wall of tubular shell includes the through slot being arranged in the axial direction, compresses end and extends through slot,
Elastic component is arranged in by tubular shell, bracket and compresses in the region that end limits.
Preferably, trigger switch is located at the outside of tubular shell.
Preferably, safety signal trigger area defined by trigger switch, which is located to compress to hold, is effectively compressed row to elastic component
The middle position of journey, trigger switch are triggered by the part for extending through slot for compressing end.
Preferably, through slot is symmetrically arranged two, and the part for extending each through slot for compressing end can be beyond safety letter
Number trigger area is to trigger collision warning signal.
Preferably, the front of motor of tubular shell is provided with the stop part for stopping to compress end.
Preferably, elastic collision striker and elastic component are spring, and the shear modulus of elastic collision striker is greater than elastic component
Elasticity modulus.
Preferably, end is compressed to touch the stroke that is effectively compressed of elastic component not less than the safety signal as defined by trigger switch
3 times for sending out the width in region.
Preferably, connector and frizzen are attached by flower basket bolt.
Through the above technical solutions, collision prevention device of the invention passes through setting elastic collision striker, when the elastic collision striker
When by external impact, elastic collision striker deforms, thus moved with follower link, and connector and trigger member phase
Even, the movement of connector has also driven the movement of trigger member simultaneously, at this point, when trigger member is believed in the safety limited by trigger switch
When in number trigger area, collision prevention device will not issue collision warning, therefore in a safe condition, and when trigger member is beyond safety
Collision prevention device can issue collision warning signal when signal trigger area, therefore be in non-secure states, to remind operator
Member takes correspondingly measure.In the present invention, since the elasticity of elastic collision striker itself can make it receive touching in all directions
It hits, therefore can guarantee that collision prevention device can accurately trigger collision alarm under various collision situations, to improve anticollision dress
The anticollision precision set.Meanwhile elastic collision striker is also able to achieve Self-resetting after an impact, therefore can be realized collision prevention device
Repeatedly effectively use.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the first embodiment of collision prevention device according to the present invention；
Fig. 2 is the structural schematic diagram of the second embodiment of collision prevention device according to the present invention.
Description of symbols
1 bracket, 2 elastic collision striker
3 connector, 4 trigger switch
5 trigger member, 51 tubular shell
52 frizzen, 53 elastic component
521 compress 6 stop parts of end
7 flower basket bolts
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 1 shows the structural schematic diagram of the first embodiment of collision prevention device according to the present invention.As shown in Figure 1
In embodiment, collision prevention device includes the bracket 1 for being connected with external movable mechanism, the elasticity positioned at 1 side of bracket
Collision part 2, and it is fixedly connected on the signal trigger assembly of 1 other side of bracket, elastic collision striker 2 passes through with signal trigger assembly
Connector 3 connect, wherein signal trigger assembly include define safety signal trigger area trigger switch 4 and can be opposite
In the trigger member 5 that trigger switch 4 moves, trigger member 5 is connected with connector 3 and is located in safety signal trigger area, so that
When elastic collision striker 2 is when by external impact, connector 3 is issued after driving trigger member 5 to exceed safety signal trigger area and is touched
Hit alarm signal, or trigger member 5 loses limitation beyond issuing collision warning after safety signal trigger area when connector 3 is broken
Signal.
Through the above technical solutions, collision prevention device of the invention passes through setting elastic collision striker 2, when the elastic collision striker
2 by external impact when, elastic collision striker 2 deforms, to move with follower link 3, and connector 3 and trigger member
5 are connected, and the movement of connector 3 has also driven the movement of trigger member 5 simultaneously, at this point, when trigger member 5 is limited by trigger switch 4
Safety signal trigger area in when, collision prevention device will not issue collision warning, therefore in a safe condition, and work as trigger member
5 collision prevention devices when exceeding safety signal trigger area can issue collision warning signal, therefore be in non-secure states, to mention
Awake operator takes correspondingly measure.
In the present invention, since the elasticity of elastic collision striker 2 itself can receive the impact force in all directions,
Therefore it can guarantee that collision prevention device can accurately trigger collision alarm under various collision situations, to improve collision prevention device
Anticollision precision.Meanwhile elastic collision striker 2 is also able to achieve Self-resetting after an impact, therefore can be realized the more of collision prevention device
Secondary effective use, reduces maintenance time.
Preferably, above-mentioned elastic collision striker 2 is preferably spring, rubber etc., has domed characteristic well, and it is most
Big elastic limit is able to satisfy the shock loading that the inertia of movable mechanism generates.Connector 3 can be rigid be also possible to it is soft
Property, such as the linear or shoestring such as can be wirerope.Trigger switch 4 can be the triggering of the signals such as pressure or displacement sensor
Device.
In accordance with the present invention it is preferred that one end of the connection connector 3 of elastic collision striker 2 and trigger member 5 are located at same level
Axial location.By the setting, no matter the position of one end of the connection connector 3 of elastic collision striker 2 occurs on any direction
Change, the position of trigger member 4 can the quick response variation, to keep collision prevention device sensitiveer to the induction of impact force.But
It is, it is notable that one end of the connection connector 3 of elastic collision striker 2 and trigger member 5 are not limited to same level axis peace
Holding position can also make the two by setting change course device between one end and trigger member 5 of the connection connector 3 of collision part 2
Between be in any angle.
In the embodiment shown in fig. 1, trigger member 5 include the tubular shell 51 being fixedly connected with bracket 1 and be located at pipe
Frizzen 52 in shape shell 51, and the elastic component 53 between tubular shell 51 and frizzen 52, wherein frizzen 52
One end pass through bracket 1 and connect with connector 3, the other end of frizzen 52 is including compressing end 521, and the setting of elastic component 53 is by pipe
Shape shell 51, bracket 1 and compress end 521 limit regions in.Preferably, frizzen may be selected to be T shape pull rod, and elastic component 53 can
To be selected as any elastic component with Telescopic, such as spring, sponge etc..It is further preferred that frizzen 52 passes through gaily decorated basket spiral shell
Bolt 7 is attached with connector 3.
In this embodiment, when elastic collision striker 2 collides, if connector 3 is tensed because colliding, frizzen 52
Compression elastic piece 53 to the left of end 521 are compressed, until compressing end 521 leaves safety signal trigger area, issue collision alarm；If even
Fitting 3 is loosened because of collision, then elastic component 53, which opens to the right, compresses end 521, similarly, is compressed end 521 and is left safety signal touching
Hair can also issue collision alarm behind region；And after elastic component 53 exits collision area, elastic component 53 and connector 3 are restored to just
Beginning state, elastic component 53 is also corresponding to be resetted, and is compressed end 521 and is returned in safety signal trigger area, normal state signal restores.
Preferably, trigger switch 4 is located at the inner wall of tubular shell 51, preferably to incude the change in location for compressing end 521.
In an embodiment as illustrated in figure 2, with embodiment as shown in Figure 1 the difference is that, tubular shell 51
Outer wall includes the through slot being arranged in the axial direction, compresses end 521 and extends through slot.At this point, trigger switch 4 is located at tubular shell 51
Outside.Preferably, safety signal trigger area defined by trigger switch 4, which is located at, compresses the effective of 521 pairs of end elastic component 53
The middle position of compression travel, trigger switch 4 are triggered by the part for extending through slot for compressing end 521.It is further preferred that logical
Slot is symmetrically arranged two, and the part for extending each through slot for compressing end 521 can be beyond safety signal trigger area to touch
Send out collision warning signal.
In this embodiment, it compresses end 521 and extends through slot, and can be axially moved in through slot, so that compressing end 521
The trigger switch 4 positioned at the outside of tubular shell 51 can be preferably perceived, while also making the installation of trigger switch 4 more square
Just.Preferably, trigger switch 4 is securable on a telescope support, which is fixed on bracket 1, preferably with tubular shell
Body 51 is parallel, and by the flexible of telescope support, the position of trigger switch 4 is adjusted to meet the use demand of different operating conditions.
As depicted in figs. 1 and 2, it is preferable that the front of motor of tubular shell 51 is provided with for stopping to compress stopping for end 521
Block piece 6.The stop part 6 holds 521 to skid off tubular shell 51 for preventing from compressing.
In a preferred embodiment, elastic collision striker 2 and elastic component 53 are both preferably spring, and elastic collision
The shear modulus of part 2 is greater than the elasticity modulus of elastic component 53, so that it is guaranteed that elastic component 53 deforms first when colliding
To trigger collision alarm.
It is preferably carried out in mode at another, the stroke that is effectively compressed for compressing 521 pairs of end elastic component 53 is not less than by touching
3 times for sending out the width of safety signal trigger area defined by switch 4 when ensuring collision prevention device work, compress 521 energy of end
The safety signal trigger area limited by trigger switch 4 is reliably left, collision alarm is issued.Preferably, the 521 pairs of bullets in end are compressed
Property part 53 the stroke that is effectively compressed be 3 times of the width of safety signal trigger area as defined by trigger switch 4.
Compared with prior art, collision prevention device of the invention has following advantages:
1) collision part that collision prevention device of the invention avoids collision prevention device in the prior art is led in collision deformation
The problem of can not triggering collision alarm when steel wire rope looseness, steel wire rope fracture is caused, it is ensured that various collision feelings
Condition can accurately issue collision alarm.
2) collision prevention device of the invention can be realized after an impact automatically resets, it can be achieved that collision prevention device repeatedly has
Effect uses, and reduces maintenance time.
3) collision prevention device of the invention can satisfy the three-dimensional protection to the point of impingement, and the use of combined connecting component passes through
Extend the protection scope of the extending collision prevention device of length of connector.Meanwhile it can also pass through the flexible of multiple collision prevention devices
Combination forms the anti-collision system of more extensive 3 D stereo, and such as multiple collision prevention device groups circularize, can be to cylinder etc.
The comprehensive three-dimensional collision prevention protection of the carry out such as mobile mechanism.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (12)
1. a kind of collision prevention device, which is characterized in that including the bracket (1) for being connected with external movable mechanism, be located at
The elastic collision striker (2) of bracket (1) side, and it is fixedly connected on the signal trigger assembly of the bracket (1) other side,
The elastic collision striker (2) is connect with the signal trigger assembly by connector (3), and the elastic collision striker (2) is set as
The impact force in all directions can be received and make corresponding move to trigger the signal trigger assembly by the connector (3)
Make, wherein the signal trigger assembly include define safety signal trigger area trigger switch (4) and can be relative to institute
The trigger member (5) of trigger switch (4) movement is stated, the trigger member (5) is connected with the connector (3) and is limited to by it described
In safety signal trigger area, so that when the elastic collision striker (2) is when by external impact, connector (3) band
The trigger member (5) are moved beyond sending collision warning signal after the safety signal trigger area, or when the connector (3) are disconnected
The trigger member (5) loses limitation beyond sending collision warning signal after the safety signal trigger area when splitting.
2. collision prevention device according to claim 1, which is characterized in that the connection company of the elastic collision striker (2)
One end and the trigger member (5) of fitting (3) are located at same level axial location.
3. collision prevention device according to claim 2, which is characterized in that the trigger member (5) includes and the bracket (1)
The tubular shell (51) being fixedly connected and the frizzen (52) being located in the tubular shell (51), and it is located at the tubular shell
Elastic component (53) between body (51) and the frizzen (52), wherein one end of the frizzen (52) passes through the bracket
(1) it is connect with the connector (3), the other end of the frizzen (52) includes compressing end (521), and the elastic component (53) sets
It sets and by the tubular shell (51), the bracket (1) and described is compressing in the region that end (521) limits.
4. collision prevention device according to claim 3, which is characterized in that the trigger switch (4) is located at the tubular shell
The inner wall of body (51).
5. collision prevention device according to claim 2, which is characterized in that the trigger member (5) includes and the bracket (1)
The tubular shell (51) being fixedly connected and the frizzen (52) being located in the tubular shell (51), and it is located at the tubular shell
Elastic component (53) between body (51) and the frizzen (52), wherein one end of the frizzen (52) passes through the bracket
(1) it is connect with the connector (3), the other end of the frizzen (52) includes compressing end (521), the tubular shell (51)
Outer wall include the through slot being arranged in the axial direction, the through slot is extended at the end (521) that compresses, and the elastic component (53) sets
It sets and by the tubular shell (51), the bracket (1) and described is compressing in the region that end (521) limits.
6. collision prevention device according to claim 5, which is characterized in that the trigger switch (4) is located at the tubular shell
The outside of body (51).
7. collision prevention device according to claim 6, which is characterized in that the peace defined by the trigger switch (4)
Full signal trigger area compresses end (521) to the middle position for being effectively compressed stroke of the elastic component (53), institute described in being located at
Trigger switch (4) is stated to be triggered by the part for extending the through slot for compressing end (521).
8. collision prevention device according to claim 7, which is characterized in that the through slot is symmetrically arranged two, described
The part for extending each through slot for compressing end (521) can be beyond the safety signal trigger area to trigger collision warning
Signal.
9. the collision prevention device according to any one of claim 3 to 8, which is characterized in that the tubular shell (51)
Front of motor is provided with for stopping the stop part (6) for compressing end (521).
10. the collision prevention device according to any one of claim 3 to 8, which is characterized in that the elastic collision striker (2)
It is spring with the elastic component (53), and the shear modulus of the elastic collision striker (2) is greater than the elastic component (53)
Elasticity modulus.
11. collision prevention device according to claim 10, which is characterized in that the end (521) that compresses is to the elastic component
(53) the stroke that is effectively compressed is not less than the width of the safety signal trigger area as defined by the trigger switch (4)
3 times.
12. the collision prevention device according to any one of claim 3 to 8, which is characterized in that the connector (3) and institute
Frizzen (52) are stated to be attached by flower basket bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975110.9A CN106364946B (en) | 2016-10-27 | 2016-10-27 | Collision prevention device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975110.9A CN106364946B (en) | 2016-10-27 | 2016-10-27 | Collision prevention device |
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| CN106364946A CN106364946A (en) | 2017-02-01 |
| CN106364946B true CN106364946B (en) | 2019-09-13 |
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| CN201610975110.9A Active CN106364946B (en) | 2016-10-27 | 2016-10-27 | Collision prevention device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108116767B (en) * | 2017-12-07 | 2020-03-13 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Self-tightening turn buckle |
| CN113335881B (en) * | 2021-07-06 | 2024-05-03 | 华电重工股份有限公司 | Anti-collision protection device of mobile conveying machinery |
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| JPH06247689A (en) * | 1993-02-24 | 1994-09-06 | Kansei Corp | Collision preventing device for crane |
| CN202164056U (en) * | 2011-06-24 | 2012-03-14 | 奥盛新材料股份有限公司 | Anti-collision device of travelling crane |
| KR20130088970A (en) * | 2012-02-01 | 2013-08-09 | 대우조선해양 주식회사 | Collision avoidance apparatus and method of crane |
| CN203568706U (en) * | 2013-09-27 | 2014-04-30 | 上海工程技术大学 | End part anticollision device of bridge cranes |
| CN204897209U (en) * | 2015-08-29 | 2015-12-23 | 河南真牛起重机有限公司 | Buffer stop for hoist |
| CN206108456U (en) * | 2016-10-27 | 2017-04-19 | 中国神华能源股份有限公司 | Anti -collision device |
-
2016
- 2016-10-27 CN CN201610975110.9A patent/CN106364946B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06247689A (en) * | 1993-02-24 | 1994-09-06 | Kansei Corp | Collision preventing device for crane |
| CN202164056U (en) * | 2011-06-24 | 2012-03-14 | 奥盛新材料股份有限公司 | Anti-collision device of travelling crane |
| KR20130088970A (en) * | 2012-02-01 | 2013-08-09 | 대우조선해양 주식회사 | Collision avoidance apparatus and method of crane |
| CN203568706U (en) * | 2013-09-27 | 2014-04-30 | 上海工程技术大学 | End part anticollision device of bridge cranes |
| CN204897209U (en) * | 2015-08-29 | 2015-12-23 | 河南真牛起重机有限公司 | Buffer stop for hoist |
| CN206108456U (en) * | 2016-10-27 | 2017-04-19 | 中国神华能源股份有限公司 | Anti -collision device |
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| CN106364946A (en) | 2017-02-01 |
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