The conveyor drive, mainly tape
(57) Abstract:Usage: the invention is intended for heavy-duty conveyors with different traction and load-carrying bodies in the coal and mining industry. The inventive conveyor drive, mainly tape contains a drive pulley connected to the two motors through gears with a clutch, two-stage planetary gearbox with a moving planet carrier and the Central wheels are made with different diameters and rigidly connected with low-speed shafts of the respective gears, while the movable carrier is rigidly attached to the sprocket or gear for transmitting rotation of the drive drum of the conveyor. 1 Il. The invention relates to a conveyor to transport and can be used in such industries and production, using conveyors with different traction and load-carrying bodies.Known drive device conveyors with one or two driving drums, gears, couplings and motors. Drive motor power must ensure that the start of the conveyor with a full load of the tape, i.e., under the obstruction  However, after R is of the motor is already fully used and it works with incomplete download. As a result, during continuous operation of the conveyor is increased energy consumption, which reduces the efficiency of the conveyor. The use of two-speed motors does not provide the necessary low order of magnitude less than estimated, the creeping speed loaded load-bearing body at the start of the conveyor. In addition, two-speed motors are special equipment, so the high cost and scarcity restricts their use.The purpose of the invention to attain the creeping speed of the loaded tape with multiple launches of the conveyor below the dam and the estimated speed of the tape at the steady state continuous operation on a single motor, which ensures efficiency of energy consumption and reduction of loads on structural elements of the conveyor when it starts.For this purpose, the leading element of the drive unit is made in the form of a two-line planetary gear, each of the two Central wheels with different diameters are rigidly connected to the low speed shaft of the corresponding gear, and rolling stock cage leading link rigidly fixed sprocket or gear for transmitting rotation of the drive drum of the conveyor.Nivodnaha drum 1, mounted on bearings 2, is rigidly fixed to the sprocket 3 for the standard drive chain 4 (stub-roller or krupasindhu). Steam sprocket 5 is rigidly fixed to the moving body 6 and a two-line planetary gear, which is mounted in bearings 7 and is a planet carrier. Inside the split housing-led 6 has two Central wheels, the diameter of which varies. Central wheel 8 is rigidly connected with the low speed shaft of the gearbox 9. Central wheel 10 is rigidly connected to the low speed shaft of the gear 11 through the clutch 12, located between the branches of the carrying belt 13. Dvuhventsovye satellite 14 kinematically connects the two Central wheels 8 and 10. High-speed shaft of the gear 9 is driven by a motor 15 through the clutch 16, the high-speed shaft of the gearbox 11 is driven by a motor 17 via a coupling 16. The power of each motor 15 and 17 are approximately the same. Each motor shall ensure continuous operation of the conveyor at the established design speed of the carrying tape. The gears 9 and 11 are standard and can be either worm or cylindroconical.The work of the proposed drive unit osushestvlyaetsya 15 and 17. Low-speed shaft gear 9 causes the rotation of the Central wheel 8, and the low speed shaft of the gearbox 11 Central wheel 10. Due to the difference of the diameters of the Central wheels 8 and 10 dvuhventsovye satellite 14 begins not only to rotate but also to our teams around a smaller Central wheel 10 in the direction opposite to its rotation. As a result, the housing-led 6 two-line planetary gear starts to rotate, which is transmitted to the drive drum 1 through the sprocket 5 and 3 and the drive circuit 4. Due to the fact that the diameters of the Central wheels 8 and 10 differ slightly, the rotational speed of the housing-led 6 will be small, and the speed of the loaded tape 13 is creeping, which reduces the load on the structural elements of the conveyor, and the conveyor belt. When the conveyor belt will begin to move throughout its course, and with the tape begins to move carriages and goods can move on to the pipe with the estimated speed. It is enough to de-energize the motor 11. With this Central wheel 10 will be fixed and speed spinning his dvuhventsovye satellite 14 will increase. Thus the speed of the tape 13 will reach a settlement.The proposed construction of a drive service unit optional as in the case of both of the motors 15 and 17 both Central wheel 8 and 10 will be fixed. The housing-led 6 will also be fixed, as dvuhventsovye satellite 14 cannot rotate due to the difference in the diameters of its crowns.In addition, the presence of a drive unit of the creeping speed when turning on both of the motors 15 and 17 facilitates and accelerates the repair work when replacing a worn conveyor belt.After the start of the conveyor on the two motors 9 and 11 off one of them for long-term operation of the pipeline with an estimated speed of the tape is possible using, for example, time relay, i.e., automatically without human intervention. The CONVEYOR DRIVE, MOSTLY TAPE, including drive pulley connected to the two motors through gears with clutches, characterized in that it additionally has a two-stage planetary gearbox with a moving planet carrier and the Central wheels are made with different diameters and rigidly connected with low-speed shafts of the respective gears, while the movable carrier is rigidly attached to the sprocket or gear for transmitting rotation of the drive drum to
FIELD: mining industry.
SUBSTANCE: invention relates to chain wheel for underground mining, particularly, to chain scraper conveyor with chain drive. Proposed chain wheel with first rim consisting of first tooth elements uniformly spaced over perimeter of chain wheel body and at least one second rim axially displaced relative to first rim and consisting of other tooth elements uniformly distributed over perimeter. Sides of tooth elements pointed to each other are provided with cavities which serve as contact surfaces of lying links of chain. Contact surfaces in cavities of each tooth element consist of wear lining made of wear-resistant material.
EFFECT: increased service life of chain wheels.
26 cl, 10 dwg
SUBSTANCE: invention relates to rotary device for chain drive or rotary device for extraction or transportation devices incorporating chain traction. Rotary device for chain and chain wheel incorporated therewith are proposed. Note here that lateral surfaces of bends in chain belt horizontal links are lower, in every case, than equatorial line, and that they represent concaved recess, while receiving horizontal recesses of chain wheel have their lateral surfaces of teeth made barrel-like protruded to mate concaved lateral surfaces of aforesaid bends.
EFFECT: reduced specific compression force between to parts.
22 cl, 10 dwg
SUBSTANCE: invention relates to chain wheel for chain drives with rotation axis D and two chain link boxes 20, 30 arranged along chain wheel edges nearby each other and sifted relative two each other that cross chain wheel in inclined position. Each box 20, 30 has lateral wall and opposite wall, and webs 31, 21 arranged along circumference. To simplify producing chain wheel for inclined chain links and improve force distribution, this invention proposes make box lateral and opposite walls form support surfaces inclined to rotation axis D and run to box base section.
EFFECT: simplified design, better distribution of forces at chain loading bearing links.
19 cl, 13 dwg
SUBSTANCE: conveyor comprises planar conveyor belt 1 with two or one draw chains 2 running around drive and tension sprockets 3, 4 and idle rolls 5 running in guides 6 secured at conveyor frame struts 7. Intermediate drive is composed of twin or single drive sprocket 8 articulated with sprockets 9 in diameter equal to that of the drive sprocket and arranged along conveyor lengthwise axis and sprockets articulated therewith with two or one draw chain of planar belt. Diameter of intermediate drive sprockets equals that of the head drive sprocket. Articulation between intermediate shaft sprockets is composed of equal-diameter gear wheels 12, 13 fitted on every shaft 10, 11 and idle gears 14 coupled therewith. Head and intermediate drive motor rotors run in synchronism.
EFFECT: higher reliability of conveyor and intermediate drive force.
2 cl, 3 dwg
SUBSTANCE: chain transmission device for chain drives of cutter loaders contains shaft (1) of chain transmission, chain wheel, bearings (5) with bodies, seal (42) of sliding ring at chain wheel side and seal (41) of sliding ring at bearing side. One of the bearings preferably related to movable bearing system (3) is located in bearing bushing (50) which is located between bearing body (4) and outer ring (5B) of the bearing and is installed in bearing body (4) being capable for axial movement. Additional bushing of bearing provides necessary gap between rotating parts and not rotating together with them parts located at bearing body side. Herewith, the gap stays essentially constant and thus independent of play of corresponding bearings.
EFFECT: longer life of chain transmission.
12 cl, 3 dwg
FIELD: machine engineering.
SUBSTANCE: chain drive (1) contains the drive shaft (3). Drive power or drive torque is transmitted to the link chain (2) by means of the elements (4) that perform the functions of the teeth of the sprocket. Elements (4) are inserted directly into the drive shaft (3) into the sockets (6). The sockets (6) have a depth (X) and the elements (4) have a free tooth height (Y) that is measured between the outer circumference (U) of the drive shaft (3) and the engaging line (WL) of the chain link (2). The ratio of the depth (X) to the height (Y) of the free tooth is between 1:1 and 1:2.5 and preferably not more than 1:2.
EFFECT: required stability of the elements that perform the function of the teeth of the sprocket, with their coupling areas in the sockets, a reliable transfer of force from the drive shaft to the link chain.
6 cl, 3 dwg