The bearing supports hydraulic downhole motor
The invention relates to the field of drilling equipment, namely, bearings bearings hydraulic downhole motors. The bearing supports hydraulic downhole motor includes a housing cylindrical support surfaces. The body is made detachable in the form of two outer casing having a cavity, and has an internal one-piece clip having a support ledge, and the liners-sectors. Assembly of the inner and outer ring form two annular cavity in which is placed the liners sector, preferably three in each cavity. Liners-sector is made of antifriction cast iron or carbon-ceramic alloys based on aluminum oxide, and clips are made of stainless steel. The support ledge of the inner cage is opposite the connector of the two outer clips. The technical result is to obtain a simple and reliable design angular contact ball bearing high wear resistance, with the ability to work with anomalous high temperatures, low coefficient of friction of the rubbing surfaces. 3 C.p. f-crystals, 1 Il.The invention relates to the field of drilling equipment, specifically to the bearings using bearing, made of two bushings - steel hardened rubber and steel, one of which is clamped in the housing, and the other on the shaft. The rubber sleeve has an annular channel with ribs, through which the entire flow of washing fluid (z Shumova, I. Sobkin. Reference turbodrills. M.: Nedra, 1968).A disadvantage of the known construction is that the rubber bushing is difficult to place in close radial clearance, an annular channel narrow it turns out, there is a pressure drop, under which the sludge is embedded in rubber and wears a steel sleeve.The closest in technical essence and the achieved result to the proposed technical solution is the thrust bearing is a sliding bearing hydraulic downhole motor (hereinafter HDM), comprising a housing of cylindrical shape with the support surfaces. The housing has a groove for filling tires and rubber lining (see THE GOST 4671-76 type.2 S. 2 “Parts rubber and rubber feet HDM”).The drawbacks of the prototype is a low resistance when drilling oil wells when working on the water or clay mortar with the addition of oil at temperatures up to 110With the complexity of manufacturing, the value is the summer residence of the invention is to develop a simple and reliable design of bearing bearing hydraulic downhole motor, at the same time perceiving the axial and radial loads, high wear resistance, with the possibility of working at higher abnormal (>110(C) with a lower coefficient debate of the rubbing surfaces (0,05-0,16).The problem is solved using the characteristics listed in the first paragraph of the claims in common with the prototype, such as bearing supports hydraulic downhole motor, comprising a housing of cylindrical shape with a support surface, and a distinctive essential features such as the casing is made detachable in the form of two outer casing having a cavity and has an internal, one-piece clip having a support ledge, and the liners-sectors of antifriction material with the Assembly of the inner and outer ring form two annular cavity in which is placed the liners sector.These conditions give the following technical result.The embodiment of the casing of the two outer clips detachable facilitates its Assembly and disassembly, as well as mounting in the housing. The presence of cavities in the outer ring and one-piece inner race allows us to rationally place in the construction of liners sector. Execution liners from ant the morning of the shroud allows us to perceive and to redistribute the load between the bearing elements.Usage type of material is reflected in paragraph 2 of the claims, namely, liners made of antifriction cast iron or carbon-ceramic alloys based on aluminum oxide, and clips from stainless steel.The design of the inner cage is reflected in paragraph 3 of the claims, namely the supporting ledge of the inner cage is opposite the connector of the two outer clips.The preferred quantity of sacks is reflected in paragraph 4 of the claims, namely in each cavity of the outer casing preferably placed in three of the liner sector.The invention is illustrated in the drawing.The bearing consists of a outer 1 and inner 2 clips, which placed six pie liners 3 of antifriction material. The inner ferrule 2 whole, has two support surfaces 4 for axial loads and the two surfaces 5 for radial loads. The inner cage is mounted on the spindle shaft (not shown) and is fastened by a compressing force on the end surfaces of the tightness of the threaded connection and thus rotates with the shaft of the spindle. Outer ring 1, detachable, and is the recipient of the radial load. Outer ring 1 is mounted in the spindle body (not shown) due to the tightness of the thread compression but furnacemen surfaces and fixed but against the casing. Assembly of the inner 2 and outer 1 clip form two annular cavities, which are placed in the sector liners 3 of 3 pieces in each cavity or 6 pieces in one bearing. In the drawing: D is the diameter of the bearing body; d is the diameter of the bearing on the spindle shaft of HDM.The bearing operates in the following way. Outer spring 1 is mounted stationary in the housing of the spindle HDM, and the inner ring 2 is fixed on the shaft of the spindle HDM.Clip the outer 1 and inner 2 Assembly form a cavity in which is placed liners-sector 3.Weight on bit (not shown) is transmitted through the inner ring 2 of the spindle shaft HDM on liners 3 the outer ring 1 through the friction surfaces 4, 6, fixedly mounted in the case: radial load on the shaft is transmitted to the housing 1 via the inner ring 2 on the liners 3 through the friction surface 5, 7.The wear resistance of the bearings of this design, depending on the material of the liners-sectors, according to calculations and conducted tests of 300 hours or more. Due to its univariant the bearing design greatly simplifies the design of the spindle HDM in General, improves maintainability.
Claims1. The bearing supports hydraulic downhole motor, comprising a housing of cylindrical shape with a support surface, wherein the body is made detachable in the form of two outer casing having a cavity, and has an internal one-piece clip having a support ledge, and the liners-sectors of antifriction material with the Assembly of the inner and outer ring form two annular cavity in which is placed the liners sector.2. Bearing on p. 1, characterized in that the inserts are made of antifriction cast iron or carbon-ceramic alloys based on aluminum oxide, and clips are made of stainless steel.3. Bearing on p. 1, characterized in that the supporting ledge of the inner cage is opposite the connector of the two outer clips.4. The bearing under item 1 or 2, characterized in that each cavity of the outer casing preferably placed in three of the liner sector.
FIELD: mechanical engineering.
SUBSTANCE: plain bearing comprises segment inserts mounted inside the race and adjustable with the use of a wedge pair. The first wedge surface is made on the insert, and the second one is made on the housing. According to another version, the plain bearing comprises segment inserts adjustable by way of a wedge pair and having a bearing sphere. The first wedge surface is made on the insert. The second wedge surface made of a bearing wedge bears on the race via the bearing surface.
EFFECT: enhanced reliability and simplified structure.
8 cl, 6 dwg
FIELD: engines and pumps.
SUBSTANCE: hydrogenerator includes rotor 1, oil bath of centre plate, which has external and internal walls 3 and 6, support elements 4, cover 7 and condensers 8 of oil vapours and detachable ring filter 9, gravity filter 10 and water ejector 11, which are arranged on cover 7 and attached to each other and through condenser 8 to air cavity of oil bath, absorption cooling chambers with oil receiver, non-return valve 13 and tight valve 22. In oil bath there installed are flexible U-shaped pipelines 23 which are rigidly pressed by means of clamps to walls 3 and 6 of oil bath and to its bottom 2. Inlet edges of face of pipelines 23, which are adjacent to wall 6, are located in air cavity of oil bath restricted with rotor 1 and wall 6 and above level of oil filling the oil bath. Outlet edges of pipelines 23 which are adjacent to wall 3 are located in air cavity of oil bath restricted with rotor 1, wall 3 and cover 7 and above level of the oil filling the oil bath and inlet edges of pipelines 23 which are adjacent to wall 6.
EFFECT: improving efficiency of the device by complete prevention of oil vapours outflow from oil bath of centre plate to atmosphere.
3 cl, 1 dwg
FIELD: machine building.
SUBSTANCE: hydroelectric turbine includes stator 12 and shaftless rotor 14. Stator 12 restricts an opening in which rotor 14 is installed with possibility of being rotated. The opening allows rotation of rotor 14 about its central axis due to its shape and size, and movement in a circumferential direction of the opening, thus moving in the direction opposite to direction of rotor 14 rotation.
EFFECT: creation of an improved turbine that is characterised with a decreased friction of bearings, which occurs at its start-up, and provides the possibility of cleaning and cooling of bearings during its functioning, which improves operating characteristics of the turbine.
12 cl, 5 dwg
FIELD: machine building.
SUBSTANCE: hydraulic machine comprises wheel fitted on shaft, both running about axis X5. Hydrostatic or hydrodynamic bearing 100 with water lubrication is composed of shaft radial peripheral surface 52 on one side and on the opposite side by inner radial surface 102 of member 101 fixed relative to said axis. Said bearing is arranged between two edges 121 and 122 to make water film removal zones created in standard operation of bearing 100. Said fixed member 101 has cavity 130 exposed to its inner radial surface 102 nearby bearing first edge 121 of said first and second edges 121, 122. Said fixed member comprises means 131, 132, 133 to communicate said cavities with those outside the bearing 100, nearby second edge 122. Said cavity 130 and said means 131, 132, 133 can remove flow parts that form water film in case removal of water film at the level of said first edge is impossible.
EFFECT: reliable operation of the bearing.
14 cl, 4 dwg