Abstract: The combine may include a threshing tank that is configured to store a threshing product obtained by the threshing device and includes a lower tapered portion formed in a bottom portion. A bottom screw is provided inside the lower tapered portion and configured to discharge the threshing product from the threshing tank. A threshing discharge device is connected to the bottom screw and configured to convey the threshing product from the bottom screw and discharge the threshing product in a body outward direction. The threshing tank includes an inspection port formed in a bottom section of the lower tapered portion, and a lid configured to open and close the inspection port, and the lid opens and closes by swinging upward and downward about a swing axis that is not parallel with a screw axis of the bottom screw.

Abstract: Provided is a threshing cylinder with a threshing processing section provided on the rear side of a raking section. In the threshing processing section, a front support member, an intermediate support member, and a rear support member are supported by a threshing cylinder support shaft. A plurality of front-side divided threshing teeth support members are supported by the front support member and the intermediate support member in a state in which the front-side divided threshing teeth support members are arranged at the same arrangement pitch in the circumferential direction of the threshing processing section. A plurality of rear-side divided threshing teeth support members are supported by the intermediate support member and the rear support member in a state in which the rear-side divided threshing teeth support members are arranged at the same arrangement pitch in the circumferential direction of the threshing processing section.

Abstract: A combine harvester is provided with: a threshing device that performs a threshing process of threshing a crop; a grain tank that stores grain obtained by the threshing process; a grain discharging device that discharges grain to be stored in the grain tank to the outside of the vehicle body; a travel driving device that drives travel of the vehicle body; and an engine that serves as a power source. The combine harvester includes a first relay shaft to which power is transmitted from an output shaft of the engine, and the power of the engine is transmitted from the first relay shaft to the grain discharging device and the travel driving device in a branched manner.

Abstract: A combine includes a threshing device and a grain tank that is located above the threshing device and stores threshed grain. A threshing cylinder 31 is located in a threshing chamber and rotates about a front-rear axis, and an arc-shaped receiving net extends along an outer circumferential portion of the threshing cylinder 31. A raking unit 33 is located in a front portion of the threshing cylinder 31 and rakes in reaped culm, and a threshing processing unit 34 is located rearward of the raking unit 33 in the threshing cylinder 31 and threshes the reaped culm. A top plate 30 includes a portion that extends from a location corresponding to an upper portion of the raking unit 33 to a location corresponding to an upper portion of the threshing processing unit 34 and that is removable from a main body portion of the threshing device in a body-rearward direction.

Abstract: A threshing apparatus includes: a threshing unit 5; a first sorting unit 11 that is arranged below the threshing unit 5, is driven to reciprocate along the front-rear direction, and threshes processed material from the threshing unit 5; and a second sorting unit 12 that is arranged below the first sorting unit 11, is driven to reciprocate along the front-rear direction, and threshes processed material from the first sorting unit 11. The front end portion of the second sorting unit 12 is provided with a second grain pan 22 that conveys processed material rearward, and the front end portion of the second grain pan 22 is also provided with a wall portion 48 that is higher than the second grain pan 22 in order to be able to prevent processed material from falling forward from the second grain pan 22.

Abstract: A combine harvester includes a threshing device 4 configured to perform a threshing process of threshing reaped grain culm in a threshing chamber 23, in which the threshing chamber 23 includes a threshing cylinder 31 configured to rotate around a front-rear axis X, and an arc-shaped receiving net 32 provided extending along an outer circumferential portion of the threshing cylinder 31, and a top plate 30 covering an upper portion of the threshing chamber 23 is supported detachably along the rotation axis direction of the threshing cylinder 31.

Abstract: A lid is supported so as to be open and close by swinging upward and downward about a swing axis that is not parallel with the screw axis of a bottom screw.

Abstract: Provided is a threshing cylinder with threshing processing section provided on the rear side of a raking section. In the threshing processing section, a front support member, an intermediate support member, and a rear support member are supported by a threshing cylinder support shaft. A plurality of front-side divided threshing teeth support members are supported by the front support member and the intermediate support member in a state in which the front-side divided threshing teeth support members are arranged at the same arrangement pitch in the circumferential direction of the threshing processing section. A plurality of rear-side divided threshing teeth support members are supported by the intermediate support member and the rear support member in a state in which the rear-side divided threshing teeth support members are arranged at the same arrangement pitch in the circumferential direction of the threshing processing section.

Abstract: A combine harvester is provided with: a threshing device that performs a threshing process of threshing a crop; a grain tank that stores grain obtained by the threshing process; a grain discharging device that discharges grain to be stored in the grain tank to the outside of the vehicle body; a travel driving device that drives travel of the vehicle body; and an engine that serves as a power source. The combine harvester includes a first relay shaft to which power is transmitted from an output shaft of the engine, and the power of the engine is transmitted from the first relay shaft to the grain discharging device and the travel driving device in a branched manner.

Abstract: Provided is a steam valve (1) equipped with: a stop valve (2) capable of stopping/releasing the flow of steam when driven so as to open/close; an governing valve (3) that is provided coaxially in the interior of the stop valve (2), and that controls the flow volume of the steam when driven to open/close in the same direction as the opening/closing of the stop valve (2); and a first guide part (11) that is provided between the stop valve (2) and the governing valve (3) so as to separate the stop valve and the governing valve in the radial direction, and that guides at least the governing valve in the opening/closing direction.

Abstract: Provided is a steam valve (1) equipped with: a stop valve (2) capable of stopping/releasing the flow of steam when driven so as to open/close; an governing valve (3) that is provided coaxially in the interior of the stop valve (2), and that controls the flow volume of the steam when driven to open/close in the same direction as the opening/closing of the stop valve (2); and a first guide part (11) that is provided between the stop valve (2) and the governing valve (3) so as to separate the stop valve and the governing valve in the radial direction, and that guides at least the governing valve in the opening/closing direction.

Abstract: A valve gear in which corrosion due to a potential difference does not occur and which can reduce the corrosion occurrence even when loads due to microvibrations are given. The valve gear includes a valve stem and a valve bush that slidably supports the valve stem. The valve stem is formed from a forged part made of a Ni-based superalloy and the valve bush is formed from a cast part made of a Ni-based superalloy. The preferable surface roughness of a sliding surface of the valve stem in contact with the valve bush and the preferable surface roughness of a sliding surface of the valve bush in contact with the valve stem is 100 ?M or less in units of Rz.

Abstract: The invention improves reliability of a valve gear in which a cobalt-based alloy is welded by plasma power building up. The valve gear includes a bearing 2 having a sliding surface against a valve shaft 1. The valve gear having a welded layer 12 made of heat-resistant cobalt-based alloy, based on plasma powder building up, formed on the sliding surface against the valve shaft 1. The welded layer 12 includes a first welded layer 12a formed on the surface of the bearing 2, having a dilution ratio of 5 to 25% and a second welded layer 12b formed on the first welded layer 12a, having a dilution ratio of 50% or less of the dilution ratio of the first welded layer 12a. The dilution ratio indicates the penetration amount of the welding metal into the base metal, and is a value obtained by B/A×100 (%) wherein A represents the total amount of the welded metal and B represents the amount of the welding metal penetrating into the base metal.

Abstract: It is intended to provide a steam valve, which can reduce vibrations of each part of the steam valve, can suppress pressure loss and can cut off the steam rapidly. The steam valve 1 changes an area of a flow path between the valve seat 4 and the valve body 2 and adjusts a flow of steam passing through the flow path by moving the valve body 2 relative to the valve seat 4. The valve body 2 satisfies a relationship of r>0.6D0, where r is a curvature radius of the valve head portion 2A and D0 is a seat diameter of the valve seat 4. A tapered portion 2B is provided on an upstream side of the valve head portion 2A and its surface is tilted toward a direction of relative movement of the valve body 2 to the valve seat 4 more than that of the valve head portion 2A.

Abstract: Provided is a valve gear in which corrosion due to a potential difference does not occur and which can reduce the corrosion occurrence even when loads due to microvibrations are given. The valve gear according to the present invention comprises a valve stem 6 and a valve bush 7 that slidably supports the valve stem 6. The valve stem 6 is formed from a forged part made of a Ni-based superalloy and the valve bush 7 is formed from a cast part made of a Ni-based superalloy. The preferable surface roughness of a sliding surface of the valve stem 6 in contact with the valve bush 7 and the preferable surface roughness of a sliding surface of the valve bush 7 in contact with the valve stem 6 is 100 ?m or less in units of Rz.

Abstract: The reliability of a valve gear in which a cobalt-based alloy is welded by plasma powder building-up welding is improved. Disclosed is a valve gear including a bearing 2 having a sliding surface against a valve shaft 1, the valve gear being characterized in that: a welded layer 12 made of a heat-resistant cobalt-based alloy, based on plasma powder building-up, is formed on the sliding surface against the valve shaft 1; and the welded layer 12 includes a first welded layer 12a formed on the surface of the bearing 2, having a dilution ratio of 5 to 25% and a second welded layer 12b formed on the first welded layer 12a, having a dilution ratio of 50% or less of the dilution ratio of the first welded layer 12a. The dilution ratio is a parameter indicating the penetration amount of the welding metal into the base metal, and means a value obtained by B/A×100 (%) wherein A represents the total amount of the welded metal and B represents the amount of the welding metal penetrating into the base metal.