CN102674147B - 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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- CN102674147B CN102674147B CN201210137755.7A CN201210137755A CN102674147B CN 102674147 B CN102674147 B CN 102674147B CN 201210137755 A CN201210137755 A CN 201210137755A CN 102674147 B CN102674147 B CN 102674147B
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- grab bucket
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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 crane facility technical field.
Background technology
Single rope grab is the mechanical equipment for loading and unloading bulk goods on hoisting crane.In prior art, the 138th page of the hoisting crane load-engaging device edited and publish for 86 years as Shanghai science tech publishing house discloses a kind of four lines formula detent mechanism that can be used for single rope grab, and it is made up of star-wheel and baffle plate.Single rope grab comprises jaw, strut, deck beam, middle bolster, be arranged on star-wheel, through beam on middle bolster, be arranged on the groove on baffle plate, column and the column on through beam.In the time of groove on star-wheel wedging column, middle bolster and through beam combine, and now promote hoist rope, the closed material that captures of grab bucket; When baffle plate pushes up star-wheel, while making star-wheel rotate the groove coming off on column, middle bolster separates with through beam, now promotes hoist rope, and blowing is opened in grab bucket.Its shortcoming is that baffle plate top star-wheel rotates, and must be grab bucket contact stockpile or ground time, Panasonic's hoist rope just can complete This move process, and grab bucket cannot be suspended in the air to discharging in container or stove; Meanwhile, grab bucket is impacted very large in the time of 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 type.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 large, and oil cylinder slightly leaks, and grab bucket will exploded arrow.In addition, when remote control grab bucket is opened, grab bucket opening speed is too fast, and material moment completes discharging, causes grab bucket to impact larger, is not suitable for especially entrucking.Clamping-bar type 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 large shortcoming, to hoisting crane or all have a great impact the service life of grab bucket itself.In addition, because these two kinds of grab buckets have very large impact, in order to reduce to impact, in grab bucket, cushion cylinder to be housed, but just reduce like this digging force of grab bucket, reduce the Grasping skill of grab bucket.Meanwhile, sub-control grab bucket generally all will be installed complicated hydraulic efficiency pressure system, involves great expense, and accuracy of manufacture requires very high, and maintaining amount is large, and maintenance cost is large.
Summary of the invention
The object 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 in the time of 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 lock case, revolves lock, tapered end case, through beam and tapered end, slip base both sides connect mobile pulley, are connected as a single entity by steel rope and the deck beam pulley being located on deck beam.The upper end of described steel rope is fixed on lifting beam.Described strut one end connects deck beam, and the other end connects bucket body.Described bucket body and through beam link together.Sliding bar is installed in described deck beam.Described slip base is connected on sliding bar by connecting pin.
Connect respectively one before and after slip base and revolve lock case, revolve in lock case and install and revolve lock, revolving lock can slide up and down revolving in lock case.The described lock lower end of revolving connects tapered end, and tapered end is arranged in tapered end case.Described tapered end case and through beam link together.The described lock cambered surface of revolving is provided with a circle locked groove.Lock pin is installed in the described lock case both sides of revolving, and one end of lock pin is arranged in locked groove.
Compared with the prior art the present invention has the following advantages: the present invention is simple, compact and reasonable for structure; The unloading of can contacting to earth, rate of onset when grab bucket is opened is slower, can realize grab bucket without shock discharge, better protection grab bucket, longer service life; Cheap, use reliable and stable.
Brief description of the drawings
Fig. 1 is front view of the present invention.
Fig. 2 is lateral plan of the present invention.
Fig. 3 is for revolving lock locking schematic diagram.
Fig. 4 decontrols schematic diagram 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 lock case, 13-revolves lock, 14-tapered end case, 15-through beam, 16-locked groove, 17-tapered end.
Detailed description of the invention
The present invention is below further described in connection with the embodiment in accompanying drawing:
As shown in Figure 1 and 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 by steel rope 2 and the deck beam pulley 3 being located on deck beam 4.The upper end of described steel rope 2 is fixed on lifting beam 1.Described strut 5 one end connect deck beam 4, and the other end connects bucket body 6.Described bucket body 6 links together with through beam 15.The interior installation sliding bar 7 of described deck beam 4.Described slip base 8 is connected on sliding bar 7 by connecting pin 9.
As shown in Fig. 3 ~ 4, slip base 8 front and back connect respectively one and revolve lock case 12, revolve lock case 12 interior installation and revolve lock 13, and revolving lock 13 can slide up and down revolving in lock case 12.Described lock 13 lower ends of revolving connect tapered end 17, and tapered end 17 is arranged in tapered end case 14.Described tapered end case 14 links together with through beam 15.
Described cambered surface of revolving lock 13 is provided with a circle locked groove 16.Lock pin 11 is installed in described lock case 12 both sides of revolving, and one end of lock pin 11 is arranged in locked groove 16.Principle of work of the present invention is: when work, and the hoisting crane lifting beam 1 of slinging, lifting beam 1, by steel rope 2 slip base 8 of slinging, up moves with the sliding bar 7 on slip base 8.Now, deck beam 4, strut 5 and bucket body 6 positions remain unchanged.Now as shown in Figure 4, tapered end 17 is not locked by tapered end case 14 in position to be arranged on revolving the revolving lock 13 of lock in case 12 on slip base 8.Tapered end 17 is driven up motion by slip base 8, departs from tapered end case 14, until slip base 8 upper ends touch the lower end of deck beam 4.Now through beam 15 is decontroled, and bucket body 6 is opened automatically.
The bucket body 6 capturing after material moves to after discharging place, and hoisting crane puts down lifting beam 1, and lifting beam 1 puts down slip base 8 by steel rope 2.Bucket body 6 touches behind material or ground, and slip base 8 moves downward.Revolve the lock pin 11 of lock on case 12 and will revolve and lock 13 and stir half-twist along locked groove 16, tapered end 17 is decontroled by tapered end case 14.The slip base 8 of again slinging, 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 by steel rope (2) and the deck beam pulley (3) being located on deck beam (4); The upper end of described steel rope (2) is fixed on lifting beam (1); Described strut (5) one end connects deck beam (4), and the other end connects bucket body (6); Described bucket body (6) links together with through beam (15); Sliding bar (7) is installed in described deck beam (4), slip base (8) is connected on sliding bar (7) by 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), before and after slip base (8), connect respectively one and revolve lock case (12), revolve in lock case (12) and install and revolve lock (13), revolve lock (13) lower end and connect tapered end (17), tapered end (17) is arranged in tapered end case (14); Described 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: described in revolve lock case (12) both sides install lock pins (11).
3. the switching mechanism of a kind of single rope grab as claimed in claim 1, is characterized in that: described in revolve lock (13) cambered surface be provided with a circle locked groove (16).
4. the switching mechanism of a kind of single rope grab as claimed in claim 2, is characterized in that: one end of described lock pin (11) is arranged in locked groove (16).
5. the switching mechanism of a kind of single rope grab as claimed in claim 1, is characterized in that: described in revolve lock (13) and can slide up and down revolving in 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 CN102674147A (en) | 2012-09-19 |
| CN102674147B true 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN102674147B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495402B (en) * | 2014-12-15 | 2016-06-01 | 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 |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102674147A (en) | 2012-09-19 |
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