CN2523749Y - Dual speed worm wheel speed reducer for hoist - Google Patents
Dual speed worm wheel speed reducer for hoist Download PDFInfo
- Publication number
- CN2523749Y CN2523749Y CN 02202807 CN02202807U CN2523749Y CN 2523749 Y CN2523749 Y CN 2523749Y CN 02202807 CN02202807 CN 02202807 CN 02202807 U CN02202807 U CN 02202807U CN 2523749 Y CN2523749 Y CN 2523749Y
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- CN
- China
- Prior art keywords
- gear
- main shaft
- worm
- speed gear
- shaft
- 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 relates to a double speed worm reducer used for a prop pulling winch, which includes a case body, a case cover and a worm; a main shaft and an output shaft that are parallel to each other are arranged on the case body; a worm wheel, a high-speed gear, a sliding bush and a low-speed gear are arranged on the main shaft, the worm wheel is fixedly connected with the main shaft by a key; one end of the high-speed gear is arranged on the main shaft through a bearing and a spline is positioned in a central hole at the other end; the sliding bush is rotatablely connected with the shaft through a key and a spline is arranged at either end of the central hole of the sliding bush, the outer circumfluence is provided with a groove used for depositing a shifting yoke; the low-speed gear is arranged on the main shaft through a bearing, an external spline which is matched with an internal spline of the sliding bush is arranged at one end of the shaft sleeve, a small gear and an output gear are arranged on the output shaft. The speed reducer can be utilized for the prop caving in the mine, material transportation and removal of chute and so on. The utility model is small in volume, light in weight, stable in movement, low in noise and can self-lock in the lifting if the power is cut off; the gear shift is flexible and reliable and the high-speed gear can be used in an unloaded state, thus greatly improving the working efficiency.
Description
Technical field
The utility model relates to drawing hoist under a kind of coal mine, specifically, relates to a kind of double speed worm reducer of drawing hoist.
Background technology
At present, the drawing hoist that is used for prop drawing caving, haul under the coal mine and moves work such as chute mostly is single speed, and the heavily loaded work-hours of drawing hoist is less relatively, time is underloading or neutral mostly, if the work speed when improving underloading and zero load effectively will be enhanced productivity greatly.In addition, the employed retarder of existing double speed drawing hoist all adopts the awl tooth to slow down, the shifting slide gear speed change, and its complex structure, volume is big, noise is big and the variable speed operation inconvenience.
The utility model content
The purpose of this utility model is in order to overcome above-mentioned defective, to improve the production efficiency in colliery, a kind of double speed worm reducer that is used for drawing hoist being provided.
The double speed worm reducer that is used for drawing hoist described in the utility model, comprise casing, case lid and worm screw, on casing, have the imput shaft and the output shaft that are parallel to each other and install, worm gear is installed on main shaft successively, high speed gear, sliding sleeve, low speed gear, described worm gear is captiveed joint with main shaft by key, one end of described high speed gear by bearing installation on main shaft, has spline in the centre hole of the other end, described sliding sleeve is connected with main shaft by key, slippage in axial direction, specifically there is spline at the two ends of the centre hole of sliding sleeve, has groove with placed shifting fork on its cylindrical, on main shaft, an end of its axle sleeve has the male splines that cooperates with the female splines of sliding sleeve to described low speed gear, and miniature gears and output gear are installed on described output shaft by bearing installation.
Described low speed gear is connected used bearing with main shaft be needle bearing.
Retarder described in the utility model and motor and reel are fixed on the same base, and motor output shaft is connected with decelerator worm, and the gear mesh on output gear and the reel drives reel work.
The double speed worm reducer volume that is used for drawing hoist described in the utility model is little, in light weight, motion steadily, noise is low, promote cut off self-lock, manually shift fork gearshift speed governing flexibility and reliability, down-hole convenient transportation, owing to when underloading and zero load, can directly use fast block, thereby improve work efficiency greatly.This double speed worm reducer can be used under the coal mine prop drawing caving, haul and moves work such as chute.
Description of drawings
Fig. 1 is the structural representation that is used for the double speed worm reducer of drawing hoist described in the utility model;
Fig. 2 is the A-A section-drawing of Fig. 1.
The specific embodiment
Referring to Fig. 1, the double speed worm reducer that is used for drawing hoist described in the utility model comprises casing 8, case lid 7, has the main shaft 10 and the output shaft 13 that are parallel to each other and install on casing.Worm gear 1, high speed gear 3, sliding sleeve 4, low speed gear 5 are installed on main shaft 10 successively.Described worm gear 1 is captiveed joint with main shaft by key, is driven by worm screw 2.One end of described high speed gear 3 is installed on the main shaft 10 by bearing 9, has spline in the centre hole of the other end.Described sliding sleeve 4 is connected with main shaft by key, slippage in axial direction, and the two ends of the centre hole of sliding sleeve 4 have spline, have groove on its cylindrical with placed shifting fork 5.Described low speed gear 6 is installed on the main shaft 10 by bearing 14, and this bearing 14 is preferably needle bearing, and low speed gear is rotated flexibly relative to main shaft 10, and an end of the axle sleeve of low speed gear 6 has the male splines that cooperates with the female splines of sliding sleeve 4.Described miniature gears 12 and the output gear 11 of on output shaft 13, being equipped with.Described miniature gears 12 and high speed gear 3 constant-meshes, output gear 11 and low speed gear 6 constant-meshes.
Double speed worm reducer described in the utility model and motor and reel are with being fixed on the base, and motor output shaft is connected with decelerator worm, and the gear mesh on output gear and the reel drives reel work.By the one-level gear, promptly high speed gear 3 or low speed gear 6 slows down, and makes its reel can be with a higher speed operation or with a lower speed operation.
When handling the shift fork handle, when stirring sliding sleeve 4 with high speed gear 3 engagements by shift fork, then reel is with higher speed operation, and on the contrary, when sliding sleeve 4 meshed with low speed gear 6, then reel was with lower speed operation.
Double speed worm reducer described in the utility model be owing to can directly use fast block in underloading and when unloaded, and it is at a slow speed 6 times fast, thereby has improved work efficiency greatly, heavy duty available slow when the underground work of colliery, underloading and unloaded available fast.This double speed worm reducer can be used under the coal mine prop drawing caving, haul and moves work such as chute.Now develop four kinds of specifications, formed JHS-8, JHS14, JHS-20, four kinds of double speed drawing hoists of JHS-30 type.
Claims (3)
1. the double speed worm reducer that is used for drawing hoist, comprise casing (8), case lid (7) and worm gear (2), it is characterized in that on casing (8), having the main shaft (10) and the output shaft (13) that are parallel to each other and install, worm gear (1) is installed on main shaft (10) successively, high speed gear (3), sliding sleeve (4), low speed gear (5), described worm gear (1) is captiveed joint with main shaft by key, one end of described high speed gear (3) is installed on the main shaft (10) by bearing (9), has spline in the centre hole of the other end, described sliding sleeve (4) is connected with main shaft by key, slippage in axial direction, specifically there is spline at the two ends of the centre hole of sliding sleeve (4), has groove on its cylindrical with placed shifting fork (5), described low speed gear (6) is installed on the main shaft (10) by bearing (14), one end of its axle sleeve has the male splines that cooperates with the female splines of sliding sleeve (4), and miniature gears (12) and output gear (11) are installed on described output shaft (13).
2. double speed worm reducer according to claim 1 is characterized in that described low speed gear (6) is connected used bearing (14) with main shaft (10) be needle bearing.
3. double speed worm reducer according to claim 1 and 2 is characterized in that this retarder and motor and reel are fixed on the same base, and motor output shaft is connected with decelerator worm, and the gear mesh on output gear and the reel drives reel work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202807 CN2523749Y (en) | 2002-01-29 | 2002-01-29 | Dual speed worm wheel speed reducer for hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202807 CN2523749Y (en) | 2002-01-29 | 2002-01-29 | Dual speed worm wheel speed reducer for hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2523749Y true CN2523749Y (en) | 2002-12-04 |
Family
ID=33685227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02202807 Expired - Fee Related CN2523749Y (en) | 2002-01-29 | 2002-01-29 | Dual speed worm wheel speed reducer for hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2523749Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224858B (en) * | 2008-01-29 | 2010-04-21 | 潍坊新奇机电工程有限公司 | Variable-speed gear for construction hoister |
| CN102120549A (en) * | 2011-04-14 | 2011-07-13 | 淮北万源工贸有限责任公司 | Winch speed reducer for mines |
-
2002
- 2002-01-29 CN CN 02202807 patent/CN2523749Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224858B (en) * | 2008-01-29 | 2010-04-21 | 潍坊新奇机电工程有限公司 | Variable-speed gear for construction hoister |
| CN102120549A (en) * | 2011-04-14 | 2011-07-13 | 淮北万源工贸有限责任公司 | Winch speed reducer for mines |
| CN102120549B (en) * | 2011-04-14 | 2013-07-10 | 淮北万源工贸有限责任公司 | Winch speed reducer for mines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |