Progress E 517
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Progress E 517 |
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| E 517 | |
| Manufacturer: | Combine harvester plant in Bischofswerda / Singwitz |
| Production period: | 1987 – early 1990s |
| Engines: | 8 VD 14.5 / 12.5-1 SVW (diesel, 14,250 cm³, 168 kW) |
| Length: | 8690 mm |
| Width: | 3000 mm |
| Height: | 3980 mm |
| Wheelbase: | 4390 mm |
| Gauge: | front: mm back: mm |
| Standard tires: | front: 18.4 / 15–34 AS rear: 12.5–20 AM |
| Separation system: | Horde shaker |
| Threshing system: | Tangential |
| Cutting width: | 5.8-6.7 m |
| Threshed material unloading: | from grain tank with discharge pipe |
| Grain tank volume: | 5.5 m 3 |
| Dimensions: | 9950 kg |
| Previous model: | Progress E 516 |
| Successor: | MDW Harvest Master 527 |
The progress E 517 is a self-propelled combine harvester from VEB Kombinat Progress Agricultural Machinery , which was manufactured in the combine harvester plant in Bischofswerda / Singwitz . It is the successor to the Progress E 516 . Improvements over the predecessor are the three-layer cleaning of the threshed material developed in cooperation with the TU Dresden , modified shakers, better sealing and better corrosion protection through galvanizing. The thresher was presented at the 29th International Machine Fair in Brno and the Leipzig Spring Fair in 1987.
description
The progress E 517 is a conventional straw walker combine with a hydrostatic drive. It is designed according to the longitudinal crop flow principle, which means that the crop is picked up at the front of the machine, the crop is processed in the middle of the machine and the remains of the crop processing, especially straw, leave the machine at the rear. It can be equipped for harvesting different types of fruit and used on slopes with an incline of up to 9.45 °. Two cutting units with a working width of 5771 mm or 6685 mm are available as standard for conventional grain types, and there were also six or eight-row maize pickers and sunflower cutting units ex works. The grain throughput is 16,000 kg / h.
Cutting unit
The cutting unit for grain, supplied as standard in working widths of 5.8 m or 6.7 m, has a quick-release coupling and is carried on the specially designed trailer for driving on a public road. The knife is driven by the thresher via a V-belt driven shaft and is implemented by means of a wobble shaft and a coupling arm. The cutting speed is 1.62 m / s. The cutting unit is suspended in a pendulum fashion, so that it copies the ground in the longitudinal and transverse directions. An adjustable mass balance ensures that the cutting unit is in constant equilibrium. The cutting height can be adjusted in three stages (70 mm, 95 mm, 125 mm) with sanding shoes attached below the cutting unit trough. In addition, the cutting angle of the cutting unit can be adjusted hydraulically in order to also be able to grip stored grain. Depending on the type of fruit, different stalk dividers can be attached to the cutting unit. Depending on the working width, the cutting unit has 77 or 89 fingers and a cutter bar with 78 or 90 knives. The drive direction of the cutting unit can be reversed for unblocking. The reel is suitable for harvesting stored crops . The engagement of the tines can be adjusted with a hexagon screw, the speed is continuously adjustable between 21 and 62 min −1 . The reel can be moved hydraulically both in the vertical direction and in the horizontal direction. A slip clutch prevents the reel drive from being overloaded. The cutting unit can be stopped immediately with a quick coupling. The intake auger of the cutting unit transports the crop to the elevator.
Threshing mechanism
The crop is fed to the threshing mechanism via the inclined conveyor, which is secured against overload with a slip clutch. A stone trap prevents damage to the threshing mechanism. The progress E 517 has a tangential threshing feed. The threshing channel is 1625 mm wide, the threshing drum has a diameter of 800 mm. It is occupied with 10 blow bars. The speed of the threshing drum can be continuously adjusted between 530 and 955 min −1 via a hydraulically operated V-belt variator . An additional reduction gear for the threshing drum was available as special equipment, which reduces the speed range to 287 to 516 min −1 for threshing certain special crops . The concave with 16 blow bars has a wrap angle of 120 ° and an area of 1.43 m 2 . It can be adjusted in three stages from the driver's seat. The fine adjustment is made by means of adjusting screws. In the basic position for grain and maize, the concave inlet has a distance of 17 ± 2 mm to the threshing drum, and for the concave outlet a distance of 9 ± 1 mm. The distance can be increased significantly for sunflowers.
Separation and cleaning
The mostly threshed straw is fed to the separating elements through a smooth pre-guide drum with a diameter of 315 mm and a profiled guide drum with a diameter of 395 mm. In the Progress E 517 five rack shakers with seven drop steps each and a total separation area of 7.68 m 2 are installed. A collecting cloth prevents the threshed grain from the threshing drum reaching the rack shakers. The almost completely threshed straw falls back onto the field from the last straw walker drop level in the rear area of the machine. The grains shaken out of the straw, as well as the part of the grain threshed out with the threshing drum, fall onto the step floor in the lower part of the combine harvester. Due to vibrations in the step floor, straw components separate from the grain. The crop then falls onto a cascade sieve with a rake, where the short straw is separated. The grain now falls from the cascade sieve onto the upper sieve, where the main cleaning takes place. The upper sieve, which is designed as an adjustable flap sieve, allows the grains to be finely cleaned and finally separated from the chaff on the lower sieve. The grain falls through the lower sieve onto the return floor and is conveyed with the grain elevator into the grain tank installed on the roof of the combine harvester. Unfinished, threshed crop that does not fit through the top sieve is separated at the top end and transported by the grain elevator to a separate re-threshing device on the right side of the machine, which then ejects it back onto the step floor. The total screen area is 5.14 m 2 . The wind required for the cleaning process is generated with two axial fans with a total diameter of 520 mm, which blow the wind in two steps under the step floor and cascade sieve and under the cascade sieve and flap sieve.
Grain tank and driver's cab
The grain tank has a capacity of 4.5 m³. With the lockable grain tank attachment supplied as standard, the capacity can be increased by 1 m³ to 5.5 m³. The grain is unloaded from the grain tank with a discharge auger and a discharge auger. Both can be operated from the driver's seat.
The progress E 517 has a pressurized cabin with a volume of 2.5 m³. Air conditioning for the cabin was also available ex works. The steering column can be adjusted to the height of different drivers by tilting it. The springs and dampers of the driver's seat can be adjusted to different weight loads. The height of the seat can be adjusted between 390 mm and 480 mm.
Drive, steering and braking system
The progress E 517 is powered by a naturally aspirated V8 diesel engine of the type 8 VD 14.5 / 12.5-1 SVW. This engine has twin camshafts, overhead valves , water cooling and direct injection . The injection pump is an in-line injection pump with edge control and mechanical regulation. The H process is used, in which the combustion chamber has the shape of a hyperboloid . With a cylinder bore of 125 mm and a piston stroke of 145 mm, the engine has a displacement of 14.25 liters. The maximum torque of 932 N · m at 1600 min -1 achieved. The rated power is 168 kW at 2000 min -1 , the specific fuel consumption in the best efficiency point is 235 g / kWh.
The diesel engine is installed transversely on the roof of the combine harvester. The torque is transmitted at the rear end of the crankshaft (the flywheel side) to a multiple V-belt pulley, which drives the cleaning directly and the threshing mechanism indirectly via an intermediate shaft including the liner . This V-belt pulley is used to drive the straw ripper and the fan reversing gear. The latter changes the direction of rotation of the two radiator fans for a short time from a certain temperature, so that the radiator is blown free of dust and straw residues and the engine does not overheat. The axial piston variable displacement pump of the hydrostatic travel drive with a delivery rate of 196 dm³ · min −1 is attached to the front end of the crankshaft . The travel drive pump supplies the oil pressure for the two hydraulic axial piston travel motors on the front wheels. The driving speed can be set continuously between 0 and 20 km / h in the forward direction and 0 and 7 km / h in the reverse direction.
The two working hydraulic pumps are gear pumps and are flanged to the flywheel housing. The smaller one has a delivery rate of 19 dm³ · min −1 , the larger one of 35 dm³ · min −1 . The working hydraulics are used to adjust the cutting unit position and the reel speed and position; it is also used to support the steering of the non-driven rear wheels. The combine is braked with the aid of the hydrostatic drive. There is no service brake in the form of a drum or disc brake. The parking brake is a conventional spring-loaded brake that acts on a brake disc. It is operated hydraulically. The fuel tank has a volume of 400 l.
swell
- OPERATING INSTRUCTIONS combine harvester E 517 , published by the combine progress agricultural machinery, VEB Mähdrescherwerk Bischofswerda / Singwitz, status at the end of the 1980s (in the archive of the Hohenheim Agricultural Museum)
Web links
- Historical prospectus Progress E 517 , approx. 1988, in the archive of the Hohenheim Agricultural Museum
- Spare parts catalog progress E 517 , in the archive of the Agricultural Museum Hohenheim
- Grain harvest with progress E 517 , video, 3:43 min
Individual evidence
- ↑ Driving report: Combine harvester MDW E 527 - wide threshing mechanism and five shakers , in Profi , Landwirtschaftsverlag, Hiltrup 1991, issue 12/1991, ( online )
- ↑ a b C. Noack, H. Jörns: Combine harvester FORTSCHRITT E 517 , in agrartechnik, 38th year, issue 7, VEB Verlag Technik, 1988, p. 291
- ↑ C. Noack, H. Jörns: Combine harvester FORTSCHRITT E 517 , in agrartechnik, 38th year, issue 7, VEB Verlag Technik, 1988, p. 292
- ↑ K.-J. Behrchen: New developments in progress in Brno in demand , in agrartechnik, Volume 38, Issue 1, VEB Verlag Technik, 1988, p. 46
- ↑ Hans Schneder: The agricultural machinery manufacturers face the high tasks in agrartechnik, 37th year, issue 5, VEB Verlag Technik, 1987, p. 196
- ↑ a b c d e f g h i Operating instructions p. 8
- ↑ a b c d e f g h i j k Operating instructions p. 7
- ↑ a b Operating instructions p. 50
- ↑ Operating instructions p. 38
- ↑ Operating instructions p. 9
- ↑ a b c d e Operating instructions p. 6
- ↑ Operating instructions p. 40
- ↑ Operating instructions p. 41
- ↑ Operating instructions p. 44
- ↑ Operating instructions p. 45
- ↑ Operating instructions p. 17
- ↑ Operating instructions p. 21
- ↑ Operating instructions p. 22
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