CN202322168U - Safety braking device for flange at tail end of crane hoisting mechanism - Google Patents
Safety braking device for flange at tail end of crane hoisting mechanism Download PDFInfo
- Publication number
- CN202322168U CN202322168U CN2011204628469U CN201120462846U CN202322168U CN 202322168 U CN202322168 U CN 202322168U CN 2011204628469 U CN2011204628469 U CN 2011204628469U CN 201120462846 U CN201120462846 U CN 201120462846U CN 202322168 U CN202322168 U CN 202322168U
- Authority
- CN
- China
- Prior art keywords
- reel
- tail end
- hoisting mechanism
- crane hoisting
- brake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A safety braking device for a flange at the tail end of a crane hoisting mechanism comprises a winding drum and a safety brake, wherein a winding drum flange plate is connected to the tail end of the winding drum, and is fastened at the tail end of the winding drum; the whole winding drum is connected with the reduction gearbox of the crane hoisting mechanism through a rotating shaft; and the winding drum flange plate is in contact with the safety brake, and can be started for safety braking automatically when the crane hoisting mechanism works abnormally. The safety braking device is characterized in that the winding drum flange plate is in indirect contact with the safety brake through a transitional device. As the winding drum flange plate is connected with the safety brake through the transitional device, the shape requirements on a hoisting reducer and the safety brake are low, which greatly saves purchasing or manufacturing cost, reduces requirements on the strength and the rigidity of structural parts, and ensures a simpler and more practical structural style. Therefore, the safety braking device is more convenient to maintain and overhaul.
Description
Technical field
The utility model relates to the block construction of hoisting crane, and the reel tail end flange that relates to a kind of crane hoisting mechanism safety catch, especially crane hoisting mechanism specifically adopts exposed gear to connect the structure of safety catch.
Background technology
In the extra high lifting mechanism of security requirement, special accident appears in a single day the actuating device that prevents lifting mechanism damages, and the installing mechanical brake is made safety arrestment usefulness on cable drum.This sure brake causes the article hypervelocity to descend in failure mechanisms or driving device damage, and descending speed works before reaching 1.5 times of command speves automatically.Main at present employing electromagnetic disc type brake or hydraulic brake directly act on the reel flange, and structure is shown in accompanying drawing 1; Because guarantee braking effect, need enough wipe contact areas, reel flange diameter is bigger, and the reductor width between centers that hoists is had relatively high expectations, and need satisfy width between centers when hoisting the reductor type selecting and causes the wasting of resources.And because of the brake braking force square is very big, impact, vibration to reel or the generation of lifting mechanism messenger chain during work are bigger, influence the work life of consumable accessory.Simultaneously; Because it is bigger as the reel flange diameter of brake disc; To consider not only when hoisting the reductor type selecting that high speed shaft allows horsepower input, peak torque and slow-speed shaft radial weight, will consider that also brake disc do not support drg to interfere with hoisting, need enough width between centerss.Be generally and satisfy width between centers, the load-carrying capacity of reductor has very big surplus, causes cost higher.For this reason, need constantly bring forth new ideas develop dependable performance, save cost, the product of succinct practical new structure.
The utility model content
The purpose of the utility model is through improving the structural arrangement of existing crane hoisting deceleration sure brake, thereby reaches dependable performance, saves cost, succinct practical effect.
The utility model is realized through following technical proposals: a kind of crane hoisting mechanism tail end safety catch; Comprise reel and sure brake; At the reel end joint connection reel flange is arranged; The reel flange is fastened on the reel tail end, and whole reel is connected with the drop-gear box of crane hoisting mechanism through S. A.; The reel flange contacts with sure brake; And can safety arrestment appear starting automatically when unusual at crane hoisting mechanism; It is characterized in that: at reel flange and sure brake is indirect contact, and the reel flange contacts with sure brake through a transition apparatus; Described reel flange is positioned at the tail end of reel, and for external diameter is the exposed gear dish, the cylindrical of reel flange is evenly equipped with external tooth; Described transition apparatus is a single shaft double plate structure; Comprise a rotating shaft, rotating shaft is installed on the bearing seat, and bearing seat is fixed on the lifting mechanism support; One of rotating shaft is a little exposed gear dish; The other end of rotating shaft is a brake disc, and the little exposed gear dish of transition apparatus is meshed with reel flange external tooth, the brake disc of transition apparatus then with the sure brake wipe contact.
Constructional feature:
1, the reel tail end flange of crane hoisting mechanism adopts exposed gear to connect the structure of sure brake; Reel flange diameter can be optimized and reduce; Requirement influence to the reductor width between centers that hoists is little, has reduced the buying or the manufacturing cost of the reductor that hoists.
2, reduce brake torque through gear transmission, the requirement of sure brake braking potential is reduced greatly, saved the buying or the manufacturing cost of sure brake greatly.
3, hoist reductor and sure brake requirements of type selecting reduces, and the layout of lifting mechanism becomes succinctly relatively, mechanism's weight reduction, and impact reduces, to the intensity and the rigidity requirement reduction of framing member.
The utility model beneficial effect is:The utility model connects reel flange and sure brake through a transition apparatus; Reductor and sure brake requirements of type selecting reduce to hoisting; Save buying or manufacturing cost greatly; Intensity and rigidity requirement to framing member reduce, and this new structure form is succinct more practical, thereby help Maintenance and Repair more easily.
Description of drawings
Fig. 1 is the arrangement plan of existing crane hoisting mechanism band sure brake structure.
Fig. 2 is the arrangement plan of the sure brake structure of the utility model band exposed gear transmission device.
The specific embodiment
To combine accompanying drawing that the utility model is done further to describe below.
Accompanying drawing 2 is a structural representation of the utility model; It improves the structure of existing crane hoisting mechanism band sure brake, can find out that from accompanying drawing the utility model relates to a kind of crane hoisting mechanism tail end safety catch; Comprise reel 1 and sure brake 2; At the reel end joint connection reel flange 3 is arranged, reel flange 3 is fastened on reel 1 tail end, and whole reel 1 is connected with the drop-gear box 4 of crane hoisting mechanism through S. A.; Reel flange 3 contacts with sure brake 2; And can safety arrestment appear starting automatically when unusual at crane hoisting mechanism; It is characterized in that: are indirect contacts at reel flange 3 with sure brake 2, and reel flange 3 contacts with sure brake 2 through a transition apparatus 5; Described reel flange 3 is positioned at the tail end of reel, and for external diameter is the exposed gear dish, the cylindrical of reel flange 3 is evenly equipped with external tooth 6; Described transition apparatus 4 is a single shaft double plate structure; Comprise a rotating shaft 7, rotating shaft 7 is installed on the bearing seat 8, and bearing seat 8 is fixed on the lifting mechanism support; One of rotating shaft 7 is a little exposed gear dish 9; The other end of rotating shaft 7 is a brake disc 10, and the little exposed gear dish 9 of transition apparatus 5 is meshed with the external tooth 6 of reel flange 3,10 of brake discs of transition apparatus 5 and sure brake 2 wipe contacts.
The utility model is through the exposed gear transmission device, and reel flange diameter reduces on the one hand, and is little to the requirement influence of the reductor width between centers that hoists; Through gear multiplication, reduce requirement on the one hand, on The selection of brake, can save cost greatly the sure brake braking potential.Through technological analysis, the utility model sure brake arrangement structure, dependable performance, saving cost, succinct practical, suitable promoting the use of.
Claims (3)
1. a crane hoisting mechanism tail end safety catch comprises reel and sure brake, at the reel end joint connection reel flange is arranged, and the reel flange is fastened on the reel tail end, and whole reel is connected with the drop-gear box of crane hoisting mechanism through S. A.; The reel flange contacts with sure brake; And can safety arrestment appear starting automatically when unusual at crane hoisting mechanism; It is characterized in that: at reel flange and sure brake is indirect contact, and the reel flange contacts with sure brake through a transition apparatus.
2. crane hoisting mechanism tail end safety catch as claimed in claim 1, it is characterized in that: described reel flange is positioned at the tail end of reel, and for external diameter is the exposed gear dish, the cylindrical of reel flange is evenly equipped with external tooth.
3. according to claim 1 or claim 2 crane hoisting mechanism tail end safety catch, it is characterized in that: described transition apparatus is a single shaft double plate structure, comprises a rotating shaft; Rotating shaft is installed on the bearing seat; Bearing seat is fixed on the lifting mechanism support, and one of rotating shaft is a little exposed gear dish, and the other end of rotating shaft is a brake disc; The little exposed gear dish of transition apparatus is meshed with reel flange external tooth, the brake disc of transition apparatus then with the sure brake wipe contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204628469U CN202322168U (en) | 2011-11-21 | 2011-11-21 | Safety braking device for flange at tail end of crane hoisting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204628469U CN202322168U (en) | 2011-11-21 | 2011-11-21 | Safety braking device for flange at tail end of crane hoisting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202322168U true CN202322168U (en) | 2012-07-11 |
Family
ID=46434158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204628469U Expired - Fee Related CN202322168U (en) | 2011-11-21 | 2011-11-21 | Safety braking device for flange at tail end of crane hoisting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202322168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107967385A (en) * | 2017-11-27 | 2018-04-27 | 北京起重运输机械设计研究院 | A kind of electrical module system and design method based on bridge crane |
-
2011
- 2011-11-21 CN CN2011204628469U patent/CN202322168U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107967385A (en) * | 2017-11-27 | 2018-04-27 | 北京起重运输机械设计研究院 | A kind of electrical module system and design method based on bridge crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20171121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |