CN202768788U - Dragger - Google Patents
Dragger Download PDFInfo
- Publication number
- CN202768788U CN202768788U CN 201220488329 CN201220488329U CN202768788U CN 202768788 U CN202768788 U CN 202768788U CN 201220488329 CN201220488329 CN 201220488329 CN 201220488329 U CN201220488329 U CN 201220488329U CN 202768788 U CN202768788 U CN 202768788U
- Authority
- CN
- China
- Prior art keywords
- shaft
- gear shaft
- gravity brake
- transmission gears
- gear
- 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
The utility model provides a dragger, and relates to a machine tool for power transmission and transformation construction, in particular to a dragger machine tool which can replace common hank grinding. The dragger comprises an input shaft, a transmission shaft, an output shaft and a plurality of transmission gears, one end of the output shaft is provided with a gravity brake gear shaft in sleeved mode, the gravity brake gear shaft is provided with threads, and the right end of the gear shaft is fixedly connected with a static friction piece. The gravity brake gear shaft is further provided with the transmission gears which can move in spiral mode, a kinetic friction piece and a clamping gear are arranged between the transmission gears moving in spiral mode and the static friction piece, and the left end of the gravity brake gear shaft is in thread connection with a limiting nut, and a thrust roller bearing is arranged between the limiting nut and the transmission gears moving in spiral mode. An original basket is replaced by the special push roller bearing, the fact that the transmission gears moving in spiral mode can normally move in spiral mode is ensured, a zero gravity brake state can not occur, the dangerous phenomenon of running grinding of hank grinding is resolved completely, and safe accidents are avoided.
Description
Technical field
The utility model relates to the construction of power transmission and transformation facility, is specially a kind of novel trailing equipment that replaces common strand mill.
Background technique
In the prior art, but what install between the stop nut in the common strand mill speed reducer on the threaded gravity brake gear shaft and the driving gear of spiral motion is pad, when the strand mill also needs in the process of falling at hoisting heavy, but the driving gear of spiral motion is left-handed mobile to the left, and finally withstand pad, thereby stop spiral motion.In this process, but the gear mesh pad of spiral motion has been implemented huge axial positive pressure, and has produced thus huge frictional force.Often when weight need upwards promote, because the effect of huge friction torque is that pad is stuck with the driving gear of spiral motion but cause driving torque less than friction torque, and can't separates, to such an extent as to agravic braking state occurs, thereby the dangerous phenomenon of " running mill " occur.
Summary of the invention
The purpose of this utility model is the root problem that solves said structure, provides a kind of safe and reliable, the gravity brake can not occur and lose efficacy, thus the novel traction facility of the dangerous phenomenon that appearance " is run mill ".
Realize that the above-mentioned purpose technological scheme is: a kind of tractor, comprise the input shaft that is arranged in parallel in gear-box, transmission shaft, output shaft, and some driving gears, end at output shaft is equipped with threaded gravity brake gear shaft, the right-hand member of this gear shaft is fixedly connected with decides friction plate, but also be provided with the driving gear of spiral motion on the gravity brake gear shaft, but the driving gear of spiral motion and decide to be provided with between the friction plate movable friction plate and one clamp gear, the left end of the gravity brake gear shaft limited location nut that is threaded, it is characterized in that: but between the driving gear of stop nut and spiral motion, thrust roller bearing is installed, guarantee that thrust roller bearing is bearing in the situation of huge axial force, but the driving gear of spiral motion all can forward and reverse spiral motion.
The utility model adopts extraordinary thrust roller bearing to replace original pad, can guarantee under the traction overload condition, extraordinary thrust roller bearing can bear huge axial force, and under the state that produces thus huge friction torque, but the driving gear of spiral motion can move by normal erect type spin, agravic braking state can not occur, thereby thoroughly solve the dangerous phenomenon that the strand mill " runs mill ", avoid the generation of security incident.
Description of drawings
Fig. 1 is the utility model partial structurtes schematic representation;
Fig. 2 is the utility model overall structure schematic representation.
Embodiment
Such as Fig. 1, shown in 2, the utility model comprises the input shaft 1 that is arranged in parallel in gear-box 12, transmission shaft 3,4, output shaft 2, and some driving gears, end at output shaft 2 is equipped with threaded gravity brake gear shaft 5, the right-hand member of this gear shaft 5 is fixedly connected with decides friction plate 6, but also be provided with the driving gear 9 of spiral motion on the gravity brake gear shaft 5, but the driving gear 9 of spiral motion and decide to be provided with between the friction plate 6 movable friction plate 7 and one clamp gear 8, the left end of the gravity brake gear shaft 5 limited location nut 10 that is threaded, but between the driving gear 9 of stop nut 10 and spiral motion, thrust roller bearing 11 is installed, guarantee that thrust roller bearing 11 is bearing in the situation of huge axial force, but the driving gear 9 of spiral motion all can forward and reverse spiral motion.
Claims (1)
1. tractor, comprise the input shaft that is arranged in parallel in gear-box, transmission shaft, output shaft, and some driving gears, end at output shaft is equipped with threaded gravity brake gear shaft, the right-hand member of this gear shaft is fixedly connected with decides friction plate, but also be provided with the driving gear of spiral motion on the gravity brake gear shaft, but the driving gear of spiral motion and decide to be provided with between the friction plate movable friction plate and one clamp gear, the left end of the gravity brake gear shaft limited location nut that is threaded, it is characterized in that: but between the driving gear of stop nut and spiral motion, thrust roller bearing is installed, guarantee that thrust roller bearing is bearing in the situation of huge axial force, but the driving gear of spiral motion all can forward and reverse spiral motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220488329 CN202768788U (en) | 2012-09-24 | 2012-09-24 | Dragger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220488329 CN202768788U (en) | 2012-09-24 | 2012-09-24 | Dragger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768788U true CN202768788U (en) | 2013-03-06 |
Family
ID=47775364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220488329 Expired - Fee Related CN202768788U (en) | 2012-09-24 | 2012-09-24 | Dragger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768788U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829162A (en) * | 2012-09-24 | 2012-12-19 | 扬州国电通用电力机具制造有限公司 | Traction engine |
| CN104944304A (en) * | 2015-06-23 | 2015-09-30 | 扬州国电通用电力机具制造有限公司 | Double-winding-drum transmission device of motor-driven winch |
-
2012
- 2012-09-24 CN CN 201220488329 patent/CN202768788U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829162A (en) * | 2012-09-24 | 2012-12-19 | 扬州国电通用电力机具制造有限公司 | Traction engine |
| CN104944304A (en) * | 2015-06-23 | 2015-09-30 | 扬州国电通用电力机具制造有限公司 | Double-winding-drum transmission device of motor-driven winch |
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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: 20130306 Termination date: 20150924 |
|
| EXPY | Termination of patent right or utility model |