CN102674147A - Opening and closing mechanism for single-cable grab bucket - Google Patents
Opening and closing mechanism for single-cable grab bucket Download PDFInfo
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- CN102674147A CN102674147A CN2012101377557A CN201210137755A CN102674147A CN 102674147 A CN102674147 A CN 102674147A CN 2012101377557 A CN2012101377557 A CN 2012101377557A CN 201210137755 A CN201210137755 A CN 201210137755A CN 102674147 A CN102674147 A CN 102674147A
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- lock
- tapered end
- case
- grab bucket
- support beam
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Abstract
The invention relates to an opening and closing mechanism for a single-cable grab bucket and belongs to the technical field of crane equipment. The opening and closing mechanism mainly comprises a lifting beam, a steel wire rope, an upper support beam, a support rod, a bucket body, a slide rod, a slide moving seat, a rotating lock box, a rotating lock, a lock box, a lower support beam and a lock, wherein the two sides of the slide moving seat are connected with moving pulleys and are connected into a whole with upper support beam pulleys arranged on the upper support beam. The upper end of the steel wire rope is fixedly arranged on the lifting beam. One end of the support rod is connected with the upper support beam, and the other end of the support rod is connected with the bucket body. The bucket body and the lower support beam are connected. The slide rod is arranged in the upper support beam. The slide moving seat is connected onto the slide rod through a connecting pin. The opening and closing mechanism has the advantages that the structure is simple, compact and reasonable; the ground contact unloading can be realized, the initial speed is lower when the grab bucket is opened, the impact-free material unloading of the grab bucket can be realized, the grab bucket is more perfectly protected, and the service life is longer; and the manufacture cost is low, and the use is stable and reliable.
Description
Technical field
The present invention relates to a kind of switching mechanism of single rope grab, belong to the crane facility technical field.
Background technology
Single rope grab is the mechanical equipment that is used for loading and unloading bulk goods on the hoisting crane.In prior art, the hoisting crane load-engaging device of editing and publishing in 86 years like Shanghai science tech publishing house discloses a kind of four lines formula detent mechanism that can be used for single rope grab for the 138th page, and it is made up of star-wheel and baffle plate.Single rope grab comprises jaw, strut, deck beam, middle bolster, be installed on the bolster star-wheel, through beam, be installed in the groove on baffle plate, column and the column on the through beam.When the groove on the star-wheel wedging column, middle bolster and through beam combine, and promote hoist rope this moment, the closed material that grasps of grab bucket; When baffle plate pushes up star-wheel, when making star-wheel rotate the groove on the column that comes off, middle bolster separates with through beam, promotes hoist rope at this moment, grabs bucket and opens blowing.Its shortcoming is that baffle plate top star-wheel rotates, and in the time of must being grab bucket contact stockpile or ground, Panasonic's hoist rope could be accomplished the This move process, and grab bucket can't be suspended in discharging in container or stove in the air; Simultaneously, grab bucket is impacted very big when unloading, the easy damaged of grabbing bucket, and work efficiency is low.
Also have a kind of single rope remote control grab bucket, be divided into cylinder top formula and clamping bar formula.The formula remote control grab bucket of cylinder top is that the mode that adopts master cylinder to withstand left and right sides eccentric disk is pinned grab bucket, and the pressure that master cylinder bears is very big, and oil cylinder has leakage slightly, and grab bucket will exploded arrow.In addition, when remote control grab bucket was opened, the grab bucket opening speed was too fast, and material moment is promptly accomplished discharging, and it is bigger to cause grab bucket to impact, and does not fit into entrucking especially.Clamping bar formula remote control grab bucket is the self-locking that friction force reaches grab bucket, and the pressure that master cylinder bears reduces greatly, but this grab bucket still exists and impact big shortcoming, still is that very big influence is all arranged in service life of grab bucket itself to hoisting crane.In addition, because these two kinds of grab buckets all have very big impact,, in the grab bucket cushion cylinder to be housed, but just reduce the digging force of grab bucket like this, reduce the extracting ability of grab bucket in order to reduce to impact.Simultaneously, inferior control grab bucket generally all will be installed complicated hydraulic efficiency pressure system, involves great expense, and accuracy of manufacture requires very high, and the maintaining amount is big, and maintenance cost is big.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby a kind of switching mechanism of single rope grab is provided, this mechanism is stable action when unloading, and simple in structure, cost is lower, dependable performance.
According to technical scheme provided by the invention; A kind of switching mechanism of single rope grab mainly comprises lifting beam, steel rope, deck beam, strut, bucket body, sliding bar, slip base, revolves the lock case, revolves lock, tapered end case, through beam and tapered end; The slip base both sides connect mobile pulley, are connected as a single entity through steel rope and the deck beam pulley that is located on the deck beam.The upper end of said steel rope is fixed on the lifting beam.Said strut one end connects deck beam, and the other end connects bucket body.Said bucket body and through beam link together.Sliding bar is installed in the said deck beam.Said slip base is connected on the sliding bar through connecting pin.
Connect one respectively before and after the slip base and revolve the lock case, revolve to install in the lock case and revolve lock, revolving lock can slide up and down in revolving the lock case.The said lock lower end of revolving connects tapered end, and tapered end is installed in the tapered end case.Said tapered end case and through beam link together.The said lock cambered surface of revolving is provided with a circle locked groove.Lock pin is installed in the said lock case both sides of revolving, and an end of lock pin is installed in the locked groove.
Compared with present technology the present invention has the following advantages: the present invention is simple, compact and reasonable for structure; The unloading of can contacting to earth, the rate of onset when grab bucket is opened is slower, can realize the no shock discharge of grab bucket, and better protection is grabbed bucket, longer service life; Cheap, use reliable and stable.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a lateral plan of the present invention.
Fig. 3 is for revolving lock locking scheme drawing.
Fig. 4 decontrols scheme drawing for revolving lock.
Description of reference numerals: 1-lifting beam, 2-steel rope, 3-deck beam pulley, 4-deck beam, 5-strut, 6-bucket body, 7-sliding bar, 8-slip base, 9-connecting pin, 10-mobile pulley, 11-lock pin, 12-revolve the lock case, 13-revolves lock, 14-tapered end case, 15-through beam, 16-locked groove, 17-tapered end.
The specific embodiment
Following the present invention will combine the embodiment in the accompanying drawing to further describe:
Shown in Fig. 1 ~ 2; The present invention mainly comprises lifting beam 1, steel rope 2, deck beam 4, strut 5, bucket body 6, sliding bar 7, slip base 8, revolves lock case 12, revolves lock 13, tapered end case 14, through beam 15 and tapered end 17; Slip base 8 both sides connect mobile pulley 10, are connected as a single entity through steel rope 2 and the deck beam pulley 3 that is located on the deck beam 4.The upper end of said steel rope 2 is fixed on the lifting beam 1.Said strut 5 one ends connect deck beam 4, and the other end connects bucket body 6.Said bucket body 6 links together with through beam 15.In the said deck beam 4 sliding bar 7 is installed.Said slip base 8 is connected on the sliding bar 7 through connecting pin 9.
Shown in Fig. 3 ~ 4, slip base 8 front and back connect one respectively and revolve lock case 12, revolve to install in the lock case 12 and revolve lock 13, and revolving lock 13 can slide up and down in revolving lock case 12.Said lock 13 lower ends of revolving connect tapered end 17, and tapered end 17 is installed in the tapered end case 14.Said tapered end case 14 links together with through beam 15.
Said cambered surface of revolving lock 13 is provided with a circle locked groove 16.Lock pin 11 is installed in said lock case 12 both sides of revolving, and an end of lock pin 11 is installed in the locked groove 16.Principle of work of the present invention is: during work, crane lifting beam 1, lifting beam 1 are through steel rope 2 slip base 8 of slinging, and the sliding bar 7 on the band slip base 8 up moves.At this moment, deck beam 4, strut 5 and bucket body 6 positions remain unchanged.Be installed on the slip base 8 revolving in the lock case 12 to revolve lock position 13 this moment as shown in Figure 4, tapered end 17 is not locked by tapered end case 14.Tapered end 17 is driven up motion by slip base 8, breaks away from tapered end case 14, touches the lower end of deck beam 4 up to slip base 8 upper ends.This moment, through beam 15 quilts were decontroled, and bucket body 6 is opened automatically.
Move bucket body 6 and be put on the material, hoisting crane puts down lifting beam 1, and lifting beam 1 puts down slip base 8 through steel rope 2, and the tapered end that revolves lock 13 17 on the slip base 8 gets into tapered end case 14.Revolving lock case 14 in the process that descends on the slip base 8, revolving lock pin 11 on the lock case 14 and will revolve lock 13 along locked groove 16 and stir half-twist.As shown in Figure 3, locked behind the tapered end half-twist of entering tapered end case 14 by tapered end case 14.The slip base 8 of slinging once more, slip base 8 is locked together in through beam 15, and through beam 15 is by in the process of slinging, and bucket body 6 closures have realized the extracting of material.
After bucket body 6 behind the extracting material moved to discharging place, hoisting crane put down lifting beam 1, and lifting beam 1 puts down slip base 8 through steel rope 2.After bucket body 6 touched material or ground, slip base 8 moved downward.Revolve the lock pin 11 of lock on the case 12 and will revolve lock 13 along locked groove 16 and stir half-twist, tapered end 17 is decontroled by tapered end case 14.The slip base 8 of slinging once more, bucket body 6 is opened, and has realized discharging.
Claims (5)
1. the switching mechanism of a single rope grab; Comprise lifting beam (1), steel rope (2), deck beam (4), strut (5), bucket body (6), sliding bar (7), slip base (8) and through beam (15); Slip base (8) both sides connect mobile pulley (10), are connected as a single entity through steel rope (2) and the deck beam pulley (3) that is located on the deck beam (4); The upper end of said steel rope (2) is fixed on the lifting beam (1); Said strut (5) one ends connect deck beam (4), and the other end connects bucket body (6); Said bucket body (6) links together with through beam (15); Sliding bar (7) is installed in the said deck beam (4); Slip base (8) is connected on the sliding bar (7) through connecting pin (9); It is characterized in that: also comprise and revolve lock case (12), revolve lock (13), tapered end case (14) and tapered end (17), connect one before and after the slip base (8) respectively and revolve lock case (12), revolve the interior installation of lock case (12) and revolve lock (13); Revolve lock (13) lower end and connect tapered end (17), tapered end (17) is installed in the tapered end case (14); Said tapered end case (14) links together with through beam (15).
2. the switching mechanism of a kind of single rope grab as claimed in claim 1 is characterized in that: said lock case (12) the both sides installation lock pin (11) that revolves.
3. the switching mechanism of a kind of single rope grab as claimed in claim 1 is characterized in that: said cambered surface of revolving lock (13) is provided with a circle locked groove (16).
4. like the switching mechanism of claim 2 or 3 described a kind of single rope grabs, it is characterized in that: an end of said lock pin (11) is installed in the locked groove (16).
5. the switching mechanism of a kind of single rope grab as claimed in claim 1 is characterized in that: the said lock (13) that revolves can slide up and down in revolving lock case (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210137755.7A CN102674147B (en) | 2012-05-05 | 2012-05-05 | Opening and closing mechanism for single-cable grab bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210137755.7A CN102674147B (en) | 2012-05-05 | 2012-05-05 | Opening and closing mechanism for single-cable grab bucket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102674147A true CN102674147A (en) | 2012-09-19 |
| CN102674147B CN102674147B (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210137755.7A Active CN102674147B (en) | 2012-05-05 | 2012-05-05 | Opening and closing mechanism for single-cable grab bucket |
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| Country | Link |
|---|---|
| CN (1) | CN102674147B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495402A (en) * | 2014-12-15 | 2015-04-08 | 无锡市新华起重工具有限公司 | Reinforced timber grab |
| CN104961049A (en) * | 2015-07-03 | 2015-10-07 | 无锡市新华起重工具有限公司 | Single-cable wood grab bucket |
| CN115517378A (en) * | 2022-05-25 | 2022-12-27 | 张木广 | Tomato cleaning equipment for agricultural product processing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2051624U (en) * | 1989-01-31 | 1990-01-24 | 上海港共青装卸公司 | Single rope grab bucket |
| CN2533113Y (en) * | 2001-08-20 | 2003-01-29 | 上海起帆科技股份有限公司 | Hand single rope bulk-cargo grab bucket |
| CN2693732Y (en) * | 2004-02-23 | 2005-04-20 | 宗胜琪 | Weight type monocable grab |
| CN201809051U (en) * | 2010-04-19 | 2011-04-27 | 无锡市新华起重工具有限公司 | Electric hydraulic dual-flap grab bucket |
| CN202729586U (en) * | 2012-05-05 | 2013-02-13 | 无锡市新华起重工具有限公司 | Opening and closing mechanism of single rope grab bucket |
-
2012
- 2012-05-05 CN CN201210137755.7A patent/CN102674147B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2051624U (en) * | 1989-01-31 | 1990-01-24 | 上海港共青装卸公司 | Single rope grab bucket |
| CN2533113Y (en) * | 2001-08-20 | 2003-01-29 | 上海起帆科技股份有限公司 | Hand single rope bulk-cargo grab bucket |
| CN2693732Y (en) * | 2004-02-23 | 2005-04-20 | 宗胜琪 | Weight type monocable grab |
| CN201809051U (en) * | 2010-04-19 | 2011-04-27 | 无锡市新华起重工具有限公司 | Electric hydraulic dual-flap grab bucket |
| CN202729586U (en) * | 2012-05-05 | 2013-02-13 | 无锡市新华起重工具有限公司 | Opening and closing mechanism of single rope grab bucket |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495402A (en) * | 2014-12-15 | 2015-04-08 | 无锡市新华起重工具有限公司 | Reinforced timber grab |
| CN104961049A (en) * | 2015-07-03 | 2015-10-07 | 无锡市新华起重工具有限公司 | Single-cable wood grab bucket |
| CN115517378A (en) * | 2022-05-25 | 2022-12-27 | 张木广 | Tomato cleaning equipment for agricultural product processing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102674147B (en) | 2014-06-25 |
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