CN109720999A - One kind is rushed to summit limiting device - Google Patents
One kind is rushed to summit limiting device Download PDFInfo
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- CN109720999A CN109720999A CN201910015348.0A CN201910015348A CN109720999A CN 109720999 A CN109720999 A CN 109720999A CN 201910015348 A CN201910015348 A CN 201910015348A CN 109720999 A CN109720999 A CN 109720999A
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- connecting rod
- pedestal
- limiting device
- chain
- weight
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Abstract
It rushes to summit limiting device the invention discloses one kind, belongs to handling machinery field.The limiting device includes: pedestal, pullswitch, connecting rod, chain, weight, hit component, the cantilever crane of pedestal one end and crane is hinged, pullswitch is fixedly mounted on pedestal, connecting rod is slideably inserted on pedestal, and connecting rod is arranged perpendicular to horizontal plane, one end of connecting rod and the bracing wire of pullswitch link together, the other end of connecting rod is removably installed together with chain, the other end of chain is removably installed together with weight, component is hit to be fixed on the suspension hook of the underface of weight, component is hit for hitting weight.Weight can be lifted to different height by the present invention according to demand, thus meet the limit demand of different height.
Description
Technical field
The invention belongs to handling machinery field, in particular to one kind is rushed to summit limiting device.
Background technique
Crane is widely used in the occasions such as building, transport, harbour, workshop as important handling machinery.It rushes to summit
Limiting device is the important component of crane, is mounted on the cantilever crane of crane, and is located at the cantilever crane of crane and hangs
Between hook, for avoiding crane in hoisting heavy, suspension hook is collided due to rising is too fast with cantilever crane, and then influences personnel or goods
The safety of object.
Existing limiting device of rushing to summit is usually the position by monitoring suspension hook relative to cantilever crane close to switch, thus real
The limit of existing suspension hook, avoids suspension hook and cantilever crane is hit.
However due to being fixed close to the position of switch, so when needing weight being lifted to different height, existing punching
Top limiting device is unable to satisfy the limit demand of different height.
Summary of the invention
It rushes to summit limiting device the embodiment of the invention provides one kind, can satisfy the limit demand of different height.The skill
Art scheme is as follows:
It rushes to summit limiting device the embodiment of the invention provides one kind, the limiting device includes: pedestal, pullswitch, company
The cantilever crane of extension bar part, chain, weight, shock component, described pedestal one end and crane is hinged, and the pullswitch is fixedly mounted
On the base, the connecting rod slideably inserts on the base, and the connecting rod is perpendicular to horizontal plane
Arrangement, one end of the connecting rod and the bracing wire of the pullswitch link together, and the other end of the connecting rod can
It is removably installed together with the chain, the other end of the chain is removably installed together with the weight, described
It hits component to be fixed on the suspension hook of the underface of the weight, the shock component is for hitting the weight.
In a kind of implementation of the invention, the both ends of the chain are respectively installed with shackle, one end of the chain
Linked together by a shackle with the connecting rod, the other end of the chain by another described shackle with
The weight links together.
In another implementation of the invention, the pedestal includes first base and second base, first bottom
One end and the cantilever crane of seat are hinged, the orthogonal connection in one end of the other end of the first base and the second base
Together, the connecting rod is slideably inserted into the second base.
In another implementation of the invention, the limiting device further includes free bearing, the free bearing include pedestal and
Hinged shaft, the hinged shaft are fixed on the pedestal, and the pedestal is fixedly connected with the cantilever crane, and the first base is rotationally
It is sleeved on the hinged shaft.
In another implementation of the invention, the first split pin, the first base position are fitted on the hinged shaft
Between first split pin and the pedestal.
In another implementation of the invention, one end of the connecting rod is set there are two otic placode, two ears
Plate is arranged parallel, and the bracing wire is folded between two otic placodes, and the bracing wire and two otic placodes are hinged.
In another implementation of the invention, nut is set on the connecting rod, the nut is located at described
Between pullswitch and the second base.
In another implementation of the invention, it is set with hose on the chain, at the upper and lower opening of the hose
The hose and the chain are fixed together with the second split pin.
In another implementation of the invention, the weight includes left hammers into shape and right hammer, the left hammer and the right hammer
It is removably mounted on together, is folded with rubber tube between the left hammer and the right hammer, the wirerope for hanging the suspension hook is worn
It is inserted in the rubber tube.
In another implementation of the invention, the shock component includes collision block, and the collision block is fixed on described hang
Hook is gripped on plate, and the collision block is sleeved on the wirerope.
Technical solution provided in an embodiment of the present invention has the benefit that
By the way that the cantilever crane of one end of pedestal and crane is hinged, so that when the cantilever crane of crane carries out pitching work,
Pedestal is rotated relative to cantilever crane, remains the center of gravity of pedestal vertically downward.Pullswitch is fixedly mounted on pedestal, makes bracing wire
The motion state of switch is consistent with pedestal.Connecting rod is slideably inserted on pedestal, and connecting rod is perpendicular to water
Horizontal layout, so that connecting rod can only be slided up and down along the direction perpendicular to horizontal plane with respect to pedestal.The one of connecting rod
The bracing wire with pullswitch is held to link together, the other end of connecting rod is removably installed together with chain, chain
The other end is removably installed together with weight, so that pullswitch, connecting rod, chain, weight connect into an entirety,
When needing to carry out the limit of different height, it can according to need the different positions that connecting rod and weight are separately mounted to chain
It sets.It hits component to be fixed on the suspension hook of the underface of weight, hits component by hitting weight, so that pullswitch
Relaxation, and then alarm is triggered, to realize the limit of different height.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of limiting device provided in an embodiment of the present invention of rushing to summit；
Fig. 2 is the structural schematic diagram of pedestal provided in an embodiment of the present invention；
Fig. 3 is free bearing structural schematic diagram provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of connecting rod provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of weight provided in an embodiment of the present invention；
Fig. 6 is the right view of heavy hammer structure provided in an embodiment of the present invention；
Fig. 7 is shock component scheme of installation provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of collision block provided in an embodiment of the present invention；
Fig. 9 is the top view of collision block structure provided in an embodiment of the present invention.
Each symbol indicates that meaning is as follows in figure:
100- limiting device, 200- cantilever crane, 300- suspension hook, 310- grip plate, 400- wirerope, 1- pedestal, the first bottom 11-
Seat, 12- second base, 2- pullswitch, 21- bracing wire, 3- connecting rod, 31- otic placode, 4- chain, 5- weight, the left hammer of 51-,
The right hammer of 52-, 53- rubber tube, 6- hit component, 61- collision block, 7- shackle, 8- free bearing, 81- pedestal, 82- hinged shaft, the opening of 9- first
Pin, 10- nut, 101- hose, the second split pin of 102-, 103- nylon block.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
It rushes to summit limiting device the embodiment of the invention provides one kind, Fig. 1 is limit dress provided in an embodiment of the present invention of rushing to summit
The structural schematic diagram set, referring to Fig. 1, in the present embodiment, which includes: pedestal 1, pullswitch 2, connecting rod
The cantilever crane 200 of part 3, chain 4, weight 5, shock component 6,1 one end of pedestal and crane is hinged, and pullswitch 2 is fixedly mounted on
On pedestal 1, connecting rod 3 is slideably inserted on pedestal 1, and connecting rod 3 is arranged perpendicular to horizontal plane, connecting rod 3
One end and the bracing wire 21 of pullswitch 2 link together, the other end of connecting rod 3 removably and with chain 4 is mounted on
Together, the other end of chain 4 is removably installed together with weight 5, is hit component 6 and is fixed on positioned at the underface of weight 5
Suspension hook 300 on, hit component 6 for hitting weight 5.
By the way that the cantilever crane 200 of 1 one end of pedestal and crane is hinged, so that the cantilever crane 200 when crane carries out pitching work
When making, pedestal 1 is rotated relative to cantilever crane 200, remains the center of gravity of pedestal 1 vertically downward.Pullswitch 2 is fixedly mounted on bottom
On seat 1, it is consistent the motion state of pullswitch 2 with pedestal 1.Connecting rod 3 is slideably inserted on pedestal 1, and
Connecting rod 3 is arranged perpendicular to horizontal plane, so that connecting rod 3 can only be along the direction perpendicular to horizontal plane with respect to above and below pedestal
Sliding.One end of connecting rod 3 and the bracing wire 21 of pullswitch 2 link together, the other end of connecting rod 3 removably and
Chain 4 is installed together, and the other end of chain 4 is removably installed together with weight 5, so that pullswitch 2, connecting rod
3, chain 4, weight 5 connect into an entirety, when needing to carry out the limit of different height, can according to need connecting rod
3 and weight 5 be separately mounted on the different location of chain 4.It hits component 6 and is fixed on the suspension hook 300 positioned at the underface of weight 5
On, component 6 is hit by hitting weight 5, so that the relaxation of pullswitch 2, and then alarm is triggered, to realize different height
Limit.
With continued reference to Fig. 1, in the present embodiment, the both ends of chain 4 are respectively installed with shackle 7, and one end of chain 4 passes through one
A shackle 7 links together with connecting rod 3, and the other end of chain 4 is linked together by another shackle 7 with weight 5.
In above-mentioned implementation, because the both ends of chain 4 are respectively installed with shackle 7, one end of chain 4 is unloaded by one
Button 7 links together with connecting rod 3, and the other end of chain 4 is linked together by another shackle 7 with weight 5, Ke Yigen
The height to be lifted by crane according to weight adjusts position of the shackle 7 on chain 4, changes what chain 4 was connect with connecting rod 3 and weight 5
Length, to realize limit of the limiting device 100 to different height.
Fig. 2 is the structural schematic diagram of pedestal provided in an embodiment of the present invention, and referring to fig. 2, in the present embodiment, pedestal 1 wraps
Include first base 11 and second base 12, one end of first base 11 and cantilever crane 200 are hinged, the other end of first base 11 and the
One end of two pedestals 12 is orthogonal to link together, and connecting rod 3 is slideably inserted into second base 12.
In above-mentioned implementation, because one end of first base 11 and cantilever crane 200 are hinged, pedestal 1 and cantilever crane are realized
200 connection, and pedestal 1 can be rotated relative to cantilever crane 200.The other end of first base 11 and one end of second base 12 are mutual
Vertical links together, so that first base 11 and second base 12 connect into an entirety, and slidably for connecting rod 3
Ground is inserted into second base 12 and provides installation space.
Fig. 3 is free bearing structural schematic diagram provided in an embodiment of the present invention, referring to Fig. 3, in the present embodiment, limiting device
100 further include free bearing 8, and free bearing 8 includes pedestal 81 and hinged shaft 82, and hinged shaft 82 is fixed on pedestal 81, and pedestal 81 and cantilever crane 200 are solid
Fixed connection, first base 11 are rotatably mounted around on hinged shaft 82.
In above-mentioned implementation, because pedestal 81 is fixedly connected with cantilever crane 200, first base 11 is rotatably mounted around
On hinged shaft 82, first base 11 is rotated around hinged shaft 82, so that the center of gravity of pedestal 1 is always vertically downward.
Referring again to Fig. 1, in the present embodiment, the first split pin 9 is fitted on hinged shaft 82, first base 11 is located at first
Between split pin 9 and pedestal 81.
In above-mentioned implementation, by being fitted with the first split pin 9 on hinged shaft 82, and first base 11 is located at first
Between split pin 9 and pedestal 81, it can prevent pedestal 1 from falling when opposite free bearing 8 is swung from the end of hinged shaft 82.
Fig. 4 is the structural schematic diagram of connecting rod provided in an embodiment of the present invention, referring to fig. 4, in the present embodiment, connection
One end of rod piece 3 is set there are two otic placode 31, and two otic placodes 31 are arranged parallel, and bracing wire 21 is folded between two otic placodes 31,
The bracing wire 21 of pullswitch 2 and two otic placodes 31 are hinged (referring to Fig. 1).
In above-mentioned implementation, because one end of connecting rod 3 is set there are two otic placode 31, two otic placodes 31 are parallel to each other
Arrangement, the bracing wire 21 of pullswitch 2 and two otic placodes 31 are hinged, realize the connection of pullswitch 2 Yu connecting rod 3.Because
Bracing wire 21 is folded between two otic placodes 31, so that 21 uniform force of bracing wire of pullswitch 2.
Referring again to Fig. 1, in the present embodiment, nut 10 is set on connecting rod 3, nut 10 is located at pullswitch 2
Between second base 12.
In above-mentioned implementation, by being set with nut 10 on connecting rod 3, and nut 10 is located at pullswitch 2
Between second base 12, it can use nut 10 and block connecting rod 3, prevent when the bracing wire 21 of pullswitch 2 is broken,
Weight 5 is fallen.
With continued reference to Fig. 1, in the present embodiment, it is set with hose 101 on chain 4, is used at the upper and lower opening of hose 101
Hose 101 and chain 4 are fixed together by the second split pin 102.
In above-mentioned implementation, by being set with hose 101 on chain 4, at the both ends of hose 101 respectively by second
The tail portion of split pin 102 sequentially passes through hose 101 and chain 4, and then the tail portion by the second split pin 102 pulls open, and makes hose 101
Be fixed together with chain 4, can prevent wirerope 400 during shaking with chain 4 winding cause chain 4 be broken or
100 false alarm of limiting device.
Fig. 5 is the structural schematic diagram of weight provided in an embodiment of the present invention, and referring to Fig. 5, in the present embodiment, weight 5 is wrapped
Left hammer 51 and right hammer 52 are included, left hammer 51 and right hammer 52 are detachably arranged in together, and left hammer into shape between in 51 and right hammer 52 is folded with
The wirerope 400 of rubber tube 53, suspension suspension hook 300 is interspersed in rubber tube 53 (referring to Fig. 6).
In above-mentioned implementation, because left hammer 51 and right hammer 52 are detachably arranged in together, by 51 Hes of left hammer
Rubber tube 53 is folded between right hammer 52, and the wirerope 400 for hanging suspension hook 300 is interspersed in rubber tube 53, it can be to avoid steel
Cord 400 rubs between weight 5 when swinging, to influence the service life of wirerope 400.
Fig. 7 is shock component scheme of installation provided in an embodiment of the present invention, referring to Fig. 7, in the present embodiment, shock group
Part 6 includes collision block 61, and collision block 61 is fixed on the gripping on plate 310 of suspension hook 300, and collision block 61 is sleeved on wirerope 400.
In above-mentioned implementation, because collision block 61 is fixed on the gripping on plate 310 of suspension hook 300, so that collision block 61 and suspension hook
300 motion state is identical, and collision block 61 is sleeved on wirerope 400, and collision block 61 and weight 5 can be made to hit together.
With continued reference to Fig. 7, in the present embodiment, hitting component 6 may include two collision blocks 61, and two collision blocks 61 are right respectively
What is claimed is fixed on the gripping on plate 310 of suspension hook 300, since wirerope 400 will become two strands after around suspension hook 300, so each
A collision block 61 can be set on strand steel wire rope 400.
In above-mentioned implementation, because the wirerope 400 for being fixed on suspension hook 300 of two collision blocks 61 respectively symmetrically is consolidated
Fixed end is gripped on plate 310, so that 300 uniform force of suspension hook, and increase the contact area for hitting component 6 and weight 5.
Fig. 8 is the structural schematic diagram of collision block provided in an embodiment of the present invention, referring to Fig. 8, in the present embodiment, in collision block 61
On be fixedly installed with nylon block 103.
In above-mentioned implementation, nylon block 103 plays the role of protection, when can prevent collision block 61 and weight 5 from hitting
Damage weight 5 because of mutual active force with collision block 61.
Fig. 9 is the top view of collision block structure provided in an embodiment of the present invention, referring to Fig. 9, in the present embodiment, 61 He of collision block
The identical through-hole of shape is equipped on nylon block 103, the wirerope 400 of suspension suspension hook 300 is located in through-hole.
In above-mentioned implementation, by being respectively provided with the identical through-hole of shape on collision block 61 and nylon block 103, it will hang
The wirerope 400 of suspension hook 300 is placed in through-hole, so that reducing wirerope 400 when operating 300 ascending motion of suspension hook and hitting
Phase mutual friction between block 61.
Optionally, the shape for the through-hole being arranged on collision block 61 and nylon block 103 is round rectangle, and round rectangle is four
Right angle is the shape of fillet.
It, can by the way that the shape of the through-hole on collision block 61 and nylon block 103 is set as round rectangle in above-mentioned implementation
To prevent wirerope 400 from being cut off when swinging by sharp rectangle right angle.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
- The limiting device 1. one kind is rushed to summit, which is characterized in that the limiting device (100) include: pedestal (1), pullswitch (2), Connecting rod (3), weight (5), hits component (6) at chain (4), and the cantilever crane (200) of described pedestal (1) one end and crane is cut with scissors It connects, the pullswitch (2) is fixedly mounted on the pedestal (1), and the connecting rod (3) is slideably inserted into the bottom On seat (1), and the connecting rod (3) is arranged perpendicular to horizontal plane, one end of the connecting rod (3) and the pullswitch (2) bracing wire (21) links together, and the other end of the connecting rod (3) is removably mounted on one with the chain (4) It rises, the other end of the chain (4) is removably installed together with the weight (5), and the shock component (6) is fixed in place In on the suspension hook (300) of the underface of the weight (5), the shock component (6) is for hitting the weight (5).
- 2. limiting device according to claim 1, which is characterized in that the both ends of the chain (4) are respectively installed with shackle (7), one end of the chain (4) is linked together by a shackle (7) with the connecting rod (3), the chain (4) the other end is linked together by another described shackle (7) with the weight (5).
- 3. limiting device according to claim 1, which is characterized in that the pedestal (1) includes first base (11) and Two pedestals (12), one end of the first base (11) and the cantilever crane (200) hingedly, the other end of the first base (11) With one end of the second base (12) is orthogonal links together, the connecting rod (3) is slideably inserted into institute It states on second base (12).
- 4. limiting device according to claim 3, which is characterized in that the limiting device (100) further includes free bearing (8), The free bearing (8) includes pedestal (81) and hinged shaft (82), and the hinged shaft (82) is fixed on the pedestal (81), the pedestal (81) it is fixedly connected with the cantilever crane (200), the first base (11) is rotatably mounted around on the hinged shaft (82).
- 5. limiting device according to claim 4, which is characterized in that be fitted with the first split pin on the hinged shaft (82) (9), the first base (11) is between first split pin (9) and the pedestal (81).
- 6. limiting device according to claim 1, which is characterized in that one end of the connecting rod (3) is set there are two ear Plate (31), two otic placodes (31) are arranged parallel, and the bracing wire (21) is folded between two otic placodes (31), institute It is hinged with two otic placodes (31) to state bracing wire (21).
- 7. limiting device according to claim 3, which is characterized in that nut (10) are set on the connecting rod (3), The nut (10) is between the pullswitch (2) and the second base (12).
- 8. limiting device according to claim 1, which is characterized in that be set with hose (101), institute on the chain (4) It states and is fixed on the hose (101) and the chain (4) with the second split pin (102) at the upper and lower opening of hose (101) Together.
- 9. limiting device according to claim 1, which is characterized in that the weight (5) includes left hammer (51) and right hammer (52), the left hammer (51) and the right hammer (52) are removably mounted on together, the left hammer (51) and the right hammer (52) Between be folded with rubber tube (53), the wirerope (400) for hanging the suspension hook (300) is interspersed in the rubber tube (53).
- 10. limiting device according to claim 9, which is characterized in that the shock component (6) includes collision block (61), institute It states collision block (61) and is fixed on the gripping on plate (310) of the suspension hook (300), the collision block (61) is sleeved on the wirerope (400) On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015348.0A CN109720999A (en) | 2019-01-08 | 2019-01-08 | One kind is rushed to summit limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015348.0A CN109720999A (en) | 2019-01-08 | 2019-01-08 | One kind is rushed to summit limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109720999A true CN109720999A (en) | 2019-05-07 |
Family
ID=66298924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910015348.0A Pending CN109720999A (en) | 2019-01-08 | 2019-01-08 | One kind is rushed to summit limiting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109720999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111217247A (en) * | 2020-01-09 | 2020-06-02 | 武汉港迪电气传动技术有限公司 | Top-impact-prevention control system and control method for lifting mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07215677A (en) * | 1994-01-27 | 1995-08-15 | Riyoubi Kiso:Kk | Contact preventing device for swivel type working vehicle |
| CN201932833U (en) * | 2010-10-08 | 2011-08-17 | 南通润邦重机有限公司 | Crane with approach switches |
| CN102491182A (en) * | 2011-11-18 | 2012-06-13 | 武汉船用机械有限责任公司 | Heavy hammer type lifting limiter |
| CN205855843U (en) * | 2016-08-10 | 2017-01-04 | 河南新科起重机股份有限公司 | The double stopping means of a kind of fork type flexible weight |
| CN207811100U (en) * | 2018-01-23 | 2018-09-04 | 华德起重机（天津）股份有限公司 | A kind of protective device for crane |
-
2019
- 2019-01-08 CN CN201910015348.0A patent/CN109720999A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07215677A (en) * | 1994-01-27 | 1995-08-15 | Riyoubi Kiso:Kk | Contact preventing device for swivel type working vehicle |
| CN201932833U (en) * | 2010-10-08 | 2011-08-17 | 南通润邦重机有限公司 | Crane with approach switches |
| CN102491182A (en) * | 2011-11-18 | 2012-06-13 | 武汉船用机械有限责任公司 | Heavy hammer type lifting limiter |
| CN205855843U (en) * | 2016-08-10 | 2017-01-04 | 河南新科起重机股份有限公司 | The double stopping means of a kind of fork type flexible weight |
| CN207811100U (en) * | 2018-01-23 | 2018-09-04 | 华德起重机（天津）股份有限公司 | A kind of protective device for crane |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111217247A (en) * | 2020-01-09 | 2020-06-02 | 武汉港迪电气传动技术有限公司 | Top-impact-prevention control system and control method for lifting mechanism |
| CN111217247B (en) * | 2020-01-09 | 2021-08-17 | 武汉港迪技术股份有限公司 | Top-impact-prevention control system and control method for lifting mechanism |
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Application publication date: 20190507 |
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