CN202729586U - Opening and closing mechanism of single rope grab bucket - Google Patents
Opening and closing mechanism of single rope grab bucket Download PDFInfo
- Publication number
- CN202729586U CN202729586U CN 201220199998 CN201220199998U CN202729586U CN 202729586 U CN202729586 U CN 202729586U CN 201220199998 CN201220199998 CN 201220199998 CN 201220199998 U CN201220199998 U CN 201220199998U CN 202729586 U CN202729586 U CN 202729586U
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- China
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- lock
- deck beam
- grab bucket
- tapered end
- case
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- Withdrawn - After Issue
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model relates to an opening and closing mechanism of a single rope grab bucket, which belongs to the technical field of a crane device. The opening and closing mechanism of the single rope grab bucket mainly comprises a lifting beam, a steel wire rope, an upper deck beam, a stay bar, a bucket body, a sliding rod, a sliding base, spin lock boxes, spin locks, a lock head box, a lower deck beam and a lock head. Moveable pulleys are connected on both sides of the sliding base, and the sliding base is connected with a pulley of the upper deck beam on the upper deck beam integrally through the steel wire rope. The upper end of the steel wire rope is fixedly arranged on the lifting beam. One end of the stay bar is connected with the upper deck beam while the other end of the stay bar is connected with the bucket body. The bucket body is connected with the lower deck beam. The upper deck beam is internally provided with the sliding rod. The sliding base is connected with the sliding rod through a connecting pin. Spin lock boxes are respectively connected with the sliding base front and back. The spin locks are installed in the spin lock boxes. The lower ends of the spin locks are connected with the lock head which is installed in the lock head box. The lock head box is connected with the lower deck beam. The opening and closing mechanism of the single rope grab bucket provided by the utility model is simple, compact and reasonable in structure, is contacted with the ground to unload, and lower in initial speed when the grab bucket is opened. Impact-free unload can be realized for the grab bucket, so that the grab bucket is better protected, longer in service life, low in cost and stable and reliable to use.
Description
Technical field
The utility model relates to a kind of switching mechanism of single rope grab, belongs to the crane facility technical field.
Background technology
Single rope grab is the mechanical equipment for loading and unloading bulk goods on the hoisting crane.In prior art, the 138th page of the hoisting crane load-engaging device of editing and publishing in 86 years such 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 comprised of star-wheel and baffle plate.Single rope grab comprises jaw, strut, deck beam, middle bolster, be installed in star-wheel, through beam on the middle bolster, 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 crawl of grab bucket material; When baffle plate pushes up star-wheel, when making star-wheel rotate groove on the column that comes off, middle bolster separates with through beam, promotes hoist rope 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 just can be finished the This move process, and grab bucket can't be suspended in the air discharging in container or the stove; Simultaneously, grab bucket is impacted very large 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 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 has leakage, 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 namely finished discharging, causing 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 the grab bucket cushion cylinder to be housed, but just reduce like this digging force of grab bucket, reduce the Grasping skill of grab bucket.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 large, and maintenance cost is large.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thereby a kind of switching mechanism of single rope grab is provided, and this mechanism is stable action when unloading, and simple in structure, cost is lower, dependable performance.
The technical scheme that provides according to the utility model, a kind of switching mechanism of single rope grab mainly comprises lifting beam, steel rope, deck beam, strut, bucket body, sliding bar, slip base and through beam, the slip base both sides connect mobile pulley, are connected as a single entity by steel rope and the deck beam pulley that is located on the deck beam.The upper end of described steel rope is fixed on the 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 the described deck beam, slip base is connected on the sliding bar by connecting pin, it is characterized in that: also comprise revolve the lock case, revolve lock, tapered end case and tapered end, connect respectively one before and after the slip base and revolve the lock case, revolve to install in the lock case and revolve lock, revolve the lock lower end and connect tapered end, tapered end is installed in the tapered end case.Described tapered end case and through beam link together.
Lock pin is installed in the described lock case both sides of revolving.
Described cambered surface of revolving lock is provided with a circle locked groove.
The described lock that revolves can slide up and down in revolving the lock case.
Compared with the prior art the utility model has the following advantages: the utility model 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 grab bucket without shock discharge, better protection grab bucket, longer service life; Cheap, use reliable and stable.
Description of drawings
Fig. 1 is the utility model front view.
Fig. 2 is the utility model lateral plan.
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 the lock case, 13-revolves lock, 14-tapered end case, 15-through beam, 16-locked groove, 17-tapered end.
The specific embodiment
Following the utility model is further described in connection with the embodiment in the accompanying drawing:
Shown in Fig. 1 ~ 2, the utility model 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 that is located on the deck beam 4.The upper end of described steel rope 2 is fixed on the lifting beam 1.Described strut 5 one ends connect deck beam 4, and the other end connects bucket body 6.Described bucket body 6 links together with through beam 15.Described deck beam 4 interior installation sliding bars 7.Described slip base 8 is connected on the sliding bar 7 by connecting pin 9.
Shown in Fig. 3 ~ 4, slip base 8 front and back connect respectively one and revolve lock case 12, revolve the 12 interior installations of lock case and revolve lock 13, and revolving lock 13 can slide up and down in revolving lock case 12.Described lock 13 lower ends of revolving connect tapered end 17, and tapered end 17 is installed in the 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 an end of lock pin 11 is installed in the locked groove 16.Principle of work of the present utility model is: during work, and the hoisting crane lifting beam 1 of slinging, lifting beam 1 up moves with the sliding bar 7 on the slip base 8 by steel rope 2 slip base 8 of slinging.At this moment, deck beam 4, strut 5 and bucket body 6 positions remain unchanged.Be installed in revolving on the slip base 8 and revolve lock position 13 this moment as shown in Figure 4 in the lock case 12, 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, until slip base 8 upper ends touch the lower end of deck beam 4.This moment, through beam 15 was decontroled, and bucket body 6 is opened automatically.
After bucket body 6 behind the crawl material moved to discharging place, hoisting crane put down lifting beam 1, and lifting beam 1 puts down slip base 8 by 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 again slinging, bucket body 6 is opened, and has realized discharging.
Claims (4)
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) that is located on the deck beam (4); The upper end of described steel rope (2) is fixed on the lifting beam (1); Described strut (5) one ends connect 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 the described deck beam (4), slip base (8) is connected on the sliding bar (7) by connecting pin (9), it is characterized in that: also comprise revolve the lock case (12), revolve lock (13), tapered end case (14) and tapered end (17), connect respectively one before and after the slip base (8) and revolve lock case (12), revolve to install in the 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); 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 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: described cambered surface of revolving lock (13) is provided with a circle locked groove (16).
4. the switching mechanism of a kind of single rope grab as claimed in claim 1 is characterized in that: the described lock (13) that revolves can slide up and down in revolving lock case (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220199998 CN202729586U (en) | 2012-05-05 | 2012-05-05 | Opening and closing mechanism of single rope grab bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220199998 CN202729586U (en) | 2012-05-05 | 2012-05-05 | Opening and closing mechanism of single rope grab bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202729586U true CN202729586U (en) | 2013-02-13 |
Family
ID=47655308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220199998 Withdrawn - After Issue CN202729586U (en) | 2012-05-05 | 2012-05-05 | Opening and closing mechanism of single rope grab bucket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202729586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674147A (en) * | 2012-05-05 | 2012-09-19 | 无锡市新华起重工具有限公司 | Opening and closing mechanism for single-cable grab bucket |
-
2012
- 2012-05-05 CN CN 201220199998 patent/CN202729586U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674147A (en) * | 2012-05-05 | 2012-09-19 | 无锡市新华起重工具有限公司 | Opening and closing mechanism for single-cable grab bucket |
| CN102674147B (en) * | 2012-05-05 | 2014-06-25 | 无锡市新华起重工具有限公司 | Opening and closing mechanism for single-cable grab bucket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130213 Effective date of abandoning: 20140625 |
|
| RGAV | Abandon patent right to avoid regrant |