Drive assemblies for mining apparatus |
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| 申请号 | US29502172 | 申请日 | 1972-10-04 | 公开(公告)号 | US3805631A | 公开(公告)日 | 1974-04-23 |
| 申请人 | GEWERK EISENHUETTE WESTFALIA; | 发明人 | KERKLIES B; | ||||
| 摘要 | A drive assembly with a toothed member carried on a shaft and adapted to drive the chains of a scraper chain conveyor. The shaft is mounted for rotation between side walls of a frame and the shaft is composed of portions which progressively decrease in diameter from one side wall to the other. The shaft has a portion adjacent the one side wall which has its exterior forming a drum surface. A further drum component is located on the shaft adjacent the other side wall with the toothed member disposed between the drum surfaces. A detachable blind bearing unit is located in an aperture in the other side wall for receiving the shaft. The drum component and the toothed member are splined onto the shaft so as to be withdrawable from the other side wall after removal of the bearing unit. The one side wall is apertured to permit the output shaft of drive means to be coupled to the shaft of the assembly. | ||||||
| 权利要求 | 1. A drive assembly for use with mining apparatus; said assembly comprising: a. a frame with side walls; b. a shaft rotatably mounted between the side walls, the shaft being composed of axial portions which progressively decrease in diameter from one side wall to the other side wall; c. a blind bearing unit detachably secured to the other of the side walls and receiving an end portion of said shaft; and d. a toothed member connected for rotation with the shaft and withdrawable along the shaft in the direction of said other side wall. 2. A drive assembly according to claim 1, wherein said axial shaft portion having the largest diameter has a first drum part fixed thereon for rotation therewith, and said axial shaft portion having the smallest diameter has a second drum part fixed thereon for rotation therewith, said toothed member being positioned between said drum parts. 3. A drive assembly according to claim 2, wherein the first drum part adjacent said one side wall is formed integrally with the shaft and the second drum part adjacent said other side wall is formed by a separate component connected for rotation with the shaft. 4. A drive assembly according to claim 3, wherein the shaft has a further portion provided with axial splines on its exterior surface which mate with axial splines on the interior surface of the second drum part. 5. A drive assembly according to claim 1, wherein the shaft has a central portion provided with axial splines on its exterior surface which mate with axial splines formed on an interior surface of the toothed member. 6. A drive assembly according to claim 5, wherein the shaft has an annular chamber closed by a ring and sealed with sealing rings, said chamber serving to contain lubricant for the splines of the toothed member. 7. A drive assembly according to claim 1, wherein the blind bearing unit has a housing detachably secured to an aperture in the other side wall. 8. A drive assembly according to claim 7, wherein the housing of the blind bearing unit contains a roller bearing locating a bushing surrounding the end portion of the shaft. 9. A drive assembly according to claim 8, wherein the housing of the blind bearing unit also has a chamber for containing lubricant for the roller bearing. 10. A drive assembly according to claim 7, wherein the housing of the blind bearing unit has a recess which locates a cover plate detachably secured to the shaft. 11. A drive assembly according to claim 1, wherein said one side wall is apertured to permit a further drive shaft to be coupled to the shaft. 12. A drive assembly according to claim 11, wherein the shaft has a hollow end portion adjacent said one side wall which is coupled via an axially splined coupling member to said further shaft. 13. A drive assembly according to claim 12, wherein the shaft has a blind bore which serves to contain lubricant for the splines of the coupling member. |
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