Method of gear wheel lubrication

FIELD: machine building.

SUBSTANCE: method of gear wheel lubrication includes running-in of the work surfaces of the of teethe of the toothed rim, with pressing to them by lubricating element in form of pinion made out of pressed lubricating material, at that during running-in the gear wheel if provided with axial oscillating movements.

EFFECT: higher efficiency of lubrication.

 

The invention relates to mechanical engineering, namely to the machine parts, and can be used for the lubrication of gears mechanical gears.

A method of lubrication of gears by dipping the teeth of their gears in an oil bath of liquid lubricant - see, for example, "Gusenkov P. G. details of machines: Textbook. for higher education institutions. - 4-e Izd., Rev. - M.: Higher. Sch., 1986. - 359 p.: ill.", p. 214.

The disadvantage of this method of lubrication is that for lubrication, you must have the oil bath, with the upper level of the liquid lubricant is not below the acceptable time; otherwise, the ring gear would not lock lubricant, and the wheels will not be lubricated. In addition, the application of liquid lubricant is limited by the speed of rotation of the wheel.

As a prototype taken rotaprint method of lubrication of gears, which consists in rolling the working surfaces of the teeth of their gears special lubricating elements in the form of gears made from extruded lubricant; these gears are in mesh with the wheels with the preload to them; under the influence of the tightness of the lubricant is transferred to the working surfaces of gear teeth of the carrying out lubrication - see, for example, "Drozdov Yu. N. etc. Friction and wear in extreme conditions: Fair�full-time/U. N. Drozdov, V. G. Pavlov, V. N. Beams. In mechanical engineering, 1986. - 224 p.: M. - (principles of design of machines), p. 191.

The disadvantage of this method is the lack of effectiveness of the transfer of the lubricant from the lubricating gears to grease the working surfaces of the teeth of the gears, because the transfer is due to the adhesive interaction of the contacting surfaces of gear teeth and the teeth of the wheels, and this interaction is not sufficient for efficient transfer of the lubricant to the lubricated surfaces of gear teeth, due to the fact that the engagement of gear teeth and paired with them the teeth of wheels in rolling them over each other (with slight friction in areas remote from the poles of their gear).

The invention solves the problem of increasing the efficiency rotaprint lubrication of gears.

This is achieved in that rotaprint the lubrication method of the gear includes the rolling of the working surfaces of the teeth of the ring gear, with pressing to them, lubricating element in the form of gears, made of compressed lubricant, and in the process of running-gear attach to the axial oscillatory displacement.

Compared with the prototype, the proposed method allows to carry out the process of transferring lubricating material�and from the surfaces of teeth of a lubricant lubricates gears on the working surfaces of the teeth of the wheel, not only due to the forces of adhesion interaction of the contacting surfaces of gear teeth and wheels), but due to the sliding friction between these surfaces resulting from the vibrations of the gear, which is lubricated rubbing surfaces of the teeth of the wheel lubricant from the surfaces of the teeth of the gear lube that enhances the effectiveness of the lubrication of the teeth of the wheel.

The lubrication method of the gear, mostly rotaprint, comprising the rolling of the working surfaces of the teeth of the ring gear, with pressing to them, lubricating element in the form of gear, made of an extruded lubricant, characterized in that in the process of running-gear attach to axial vibration movement.



 

Same patents:

FIELD: transport.

SUBSTANCE: invention relates to vehicle transmission lubrication system. The lubrication system with transmission with shaft bearings (4-9), gear wheels hubs bearings (10-15), ring gears (16-27) of interlocking pairs (29-34) of gear shift mechanism gear wheels and with clutch synchronous members (35, 36, 37) supports installed with possibility of axial movement. Lubricant circulation in the circuit (38) is supported by means of gravity and guiding components for lubricant feeding (40). For the first, the second and the third areas (41, 42, 43) of lubrication the first, the second and the third lubrication grooves (44, 45, 46) respectively are provided which grooves have drip holes for corresponding lubrication areas (41, 42, 43) located under them. The driven bevel-pinion (50) enters lower collecting tank (49) for lubricant, and lubrication channel (51) passes from outer circumference of the bevel-pinion (50) to upper collecting tank (53) for lubricant.

EFFECT: higher compactness and effectiveness of lubrication.

7 cl, 7 dwg

Pumping device // 2549579

FIELD: engines and pumps.

SUBSTANCE: invention relates to pumping devices with two stages for drivelines. Pumping device (10) includes stage (11) of low pressure of a pump and stage (12) of high pressure of a pump. The first stage (11) of the pump supplies fluid medium under low pressure to system (13) of lubrication/cooling and to an inlet hole of the second stage (12) of the ump, which supplies fluid medium under high pressure to hydraulic control system (14). Fluid medium from both systems (13 and 14) is returned by means of tank (16) and filter (15) to the first stage (11) of the pump.

EFFECT: improvement of efficiency of the device.

14 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: liquid lubricant supply device contains lubricant sprayer 4 made as box without top lid. The box 4 is secured on one arm 10 of the rocker 6 installed on hinge 7 inside the gearbox casing with possibility of movement in vertical plane. Cam 8 is installed on the driven shaft 9 and is located with possibility of periodic contact with the second arm 5 of the rocker 6. The rocker is equipped with spring 11 moving upward the arm 10 of the rocker with box after the arm 5 release of the cam 8 until the box top exit from the oil bath 2. The device is also equipped with the limiter 12 to limit upward movement of the arm 10 of the rocker 6. At place of the absent top lid of the box 4 a sprayer of the spayed lubricant 13 is installed in form of a mesh with size equal to size of this absent lid.

EFFECT: increased efficiency of the liquid lubricant supply to friction parts of the gearbox.

2 dwg

FIELD: machine building.

SUBSTANCE: liquid lubricant supply device for gearbox has casing 1 and oil bath 2 with top level 3 of lubricant, it is lubricant sprayer made as box 4 without top lid secured on one arm 10 of the rocker 6 installed on hinge 7 inside the gearbox casing with possibility of its movement in vertical plane. Cam 8 installed on the driven shaft 9 is located with possibility of periodic contact with the second arm 5 of the rocker 6. The rocker has a spring 11 moving upward the arm 10 of the rocker after the arm 5 release of the cam 8 action until exit of the box top from the oil bath 2, and is equipped with limiter 12 of upward movement. Instead of the absent box lid a shaper of the spayed lubricant is installed, it is made as grid with size equal to size of the absent lid, and contains plates, which edges are perpendicular to the box top.

EFFECT: increased efficiency of the liquid lubricant supply.

2 dwg

FIELD: transport.

SUBSTANCE: invention refers to lubrication in transmission power unit. The transmission power unit with secondary shaft (10) contains drilling (14) for lubrication oil feed made along its central axis (12). By means of oil piping (22), the roller bearing (20) located on end portion (18) of secondary shaft (10) is indirectly connected with drilling (20).

EFFECT: higher reliability of a device.

5 cl, 1 dwg

FIELD: transport.

SUBSTANCE: invention relates to wheel drives with motors. Motor (2A) and speed reduction gear (12A) composed of planetary gearing are arranged on outer side in vehicle width direction. Motor (2B) and speed reduction gear (12B) composed of planetary gearing are arranged on outer side in vehicle width direction so that gears (12A) and (12B) are located between motors (2A) and (2B). Part of radially outer of ring gear (24A) of reduction gear (12A) or radial outer edge of ring gear (24B) of reduction gear (12B) is smaller than smaller section (P1) of radially outer edge of motor (2A) and section (P2) of radially outer edge of motor (2B).

EFFECT: enlarged space communicated with the jacket inner part.

21 cl, 12 dwg

FIELD: machine building.

SUBSTANCE: device for feeding of liquid lubricant to gear units comprises: an oil crankcase, implemented in the transmission housing; a bucket wheel, partially immersed in it and mounted on one of the transmission shafts; buckets fixed on its end and uniformly arranged along the wheel diameter, and also the oil storage vessel and the system of supply of lubricant to friction units. Each bucket is designed as enclosed vessel fitted with two internal transversal partitions, placed in the central part of its bottom surface and forming interconnecting cavities. Between partitions a drain hole is provisioned which is fitted with a final tube; opposite to it in the upper part of the vessel the hole for oil intake from crankcase is provisioned. The storage vessel for oil intake is designed as a chute with the central transversal partition fixed on the housing parallel to the wheel plane with a possibility of arranging of drain hole of the bucket, located in the upper position on the wheel above the chute. The system of supply of lubricant to friction surfaces is designed as distributive tubes embedded into the bottom of the chute.

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3 cl, 3 dwg

FIELD: transport.

SUBSTANCE: device comprises air guide plate to direct airflow under the car. Said air guide plate is secured to axle differential gear so that internal movement of the latter causes the adjustment of said air guide plate. Proposed method of cooling consists in application of said device for cooling of the axle differential gear. At carrier braking, airflow is directed to axle differential gear. In case the carrier runs at constant speed said airflow is not directed toward axle differential gear. At carrier acceleration, airflow is forced from axle differential gear so that negative pressure is developed thereat.

EFFECT: higher efficiency of cooling.

7 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention relates to gearbox lubrication. This mechanism comprises first shaft (18) arranged in crankcase (29) to run therein, lubrication channel (44) made in said shaft 18 along its axis and lubrication points (58, 59) fed with lubricant in line (44, 52) with lubrication channel (44). Section (52) of feed line (44, 52) is located between lubrication channel discharge hole and lubrication point, in the first wall (53) of crankcase (29).

EFFECT: lubrication of hard-to-reach lubrication points.

15 cl, 7 dwg

Gear wheel // 2537028

FIELD: machine building.

SUBSTANCE: gear wheel consists of body and gear rim with teeth. In slots of the toothed rim not occupied by during engagement by teeth of the match wheel the inserts are installed, they are made out of elastic material. On each end face of the toothed rim and adjacent part of the wheel body the wheel coaxial ring with L-cross-section is installed, one it part is parallel with the wheel end face, and the second one is at right angle to the wheel end face, and have diameter equal to the diameter of the circle outlined during the wheel rotation by the inserts parts looking on the mating gear. In rings the pockets for the inserts installation are made.

EFFECT: lubricating material extruded from the zone of engagement of the gear wheel back to the zone of engagement of the gear wheel is returned.

3 dwg

FIELD: mechanical engineering; vertical gear reducers.

SUBSTANCE: proposed vertical gear reducer has housing 1, three stages assembled from cylindrical gear wheels 3, 5, 7 which are rigidly connected with shafts mounted rotatably in bearings 9-12 in housing. Lubricating fluid 13 is located in lower part of housing. Third-stage wheel 7 is partially immersed in lubricating fluid. Fitted on shaft of second-stage wheel 5 is washer 15 which rotates together with pinion stem 6 performing axial and angular motion. End faces 16 and 17 of gear wheels 3 and 7 of first and third stages directed towards second-stage wheel 5 are located in one plane. Washer 15 is pressed to end faces of gear wheels 16 and 17.

EFFECT: enhanced reliability due to reliable delivery of lubricant to teeth of wheels of higher stage.

3 dwg

FIELD: mechanical engineering.

SUBSTANCE: breather comprises flexible vessel (1), which is in communication with crankcase (8) of the reduction gear through pipeline (6), and pressure gauge (10). Flexible vessel (1) is made of corrugation provided with frame (3) and compression springs (4) which arrest the flexible vessel against free lowering and define a space for compensating air rarefaction in the crankcase of the reduction gear at initial moment of operation.

EFFECT: enhanced reliability.

1 dwg

Breather // 2262020

FIELD: mechanical engineering; removal of excessive pressure from reservoirs of reduction gears, gear-boxes and other mechanisms.

SUBSTANCE: proposed breather has stepped housing 1 with air escape hole, cap 6 and hemispherical dampening element 5. Rod 2 is fitted in air escape hole. Upper part of rod 2 is provided with circular groove. Lower part of rod 2 which is taper in shape extends beyond housing. Dampening element 5 is received by circular groove of rod 2. Cap 6 mounted immovably on housing 1 is provided with slots 7 in its lower part. Clearance is formed in between bottom of cap 6 and end face of rod 2. As soon as pressure reaches its excessive level, rod moves upward letting the air outside through clearance formed between dampening element 5 and through hole of housing 1, flat and slots 7.

EFFECT: enhanced operational reliability; avoidance of water penetration inside mechanism at immersion of breather in aqua medium.

4 dwg

FIELD: mechanical engineering.

SUBSTANCE: planet mechanism comprises solar pinion (43), carrier (41) with satellites (42), and crown gear wheel (39) with synchronizers. Carrier (41) has a bearing in outer wall (10) of the housing of the gear box which is defined by ball roller bearing (13) whose outer race is secured between the lid of the housing and reactive gear clutch member (38) which is set on the bearing. In front of bearing (13) are projections with transverse grooves. The projections are provided on the face of the bearing rods of satellites (42) and carrier (41). The grooves receive the split stop ring that embraces the step washer secured to carrier (41).

EFFECT: enhanced reliability and reduced sizes.

5 cl, 11 dwg

Friction unit // 2272200

FIELD: mechanical engineering.

SUBSTANCE: friction unit comprises contacting friction surfaces (1) and lubricating agent (4). Lubricating agent (4) comprises fillers made of microscopic particles having regular spherical shape. At least one of the contacting friction surfaces (1) is provided with the microscopic profile with hollows (2) made of grooves. The radius of spherical friction particles (3) exceed the depth of hollows (2), but no more than by a factor of two.

EFFECT: enhanced efficiency.

1 dwg

FIELD: mechanical engineering.

SUBSTANCE: crankcase comprises three crankcase joints. The flange of the first crankcase joint is curved and provided with base bearing surface for bearing units of the driven pinion from the side of the plane cooperating with the crankshaft. The pinions have the second joint plane that is parallel to the first one. From the opposite side, the curved flange is closed and provided with ring port for receiving the driving pinion with bearing units containing the third joint plane. The ring port is overlapped by means of the segment projection provided on the base bearing surface of the bearing unit of the driven pinion. Each joint plane is provided with mutually perpendicular ports for cooperation with the fastening and setting members. The inner surface of the crankcase is provided with means for catching, storing, and supplying oil to the friction surfaces of the bearing units of the driving pinion. The means is made of a rectangular space with rounded corners, and its smaller side is arranged along the width of the crankcase.

EFFECT: reduced sizes.

5 dwg

Angle gear drive // 2281862

FIELD: transport engineering.

SUBSTANCE: invention can be used at designing of angle gear drives of drive axles with rigid suspension of wheels, for instance, buses or trolleybuses. Proposed angle gear drive has case 1 with oil reservoir. Driving wheel 7 is installed bearings inside cup 10 rigidly coupled with body. Cover 18 with sealing member 19 is secured on flange of cup 10. Oil deflector 11 is installed between bearings of driving wheel 7 oil collector is made in form of space 14 on inner surface of body 2 and is coupled with through holes in cup 10. Oil holes 21 are symmetrical relative to horizontal plane passing through axle of driving wheel 7 at distance not exceeding inner radius of outer race of front bearing 9 of driving wheel 7.

EFFECT: increased service life of bearing units of drive axle angle drive driving wheel and enlarged operating capabilities.

3 dwg

FIELD: mechanical engineering.

SUBSTANCE: device comprises casing (160) mounted in the vicinity of roller (100) and pipeline for supplying fluid. Peripheral section (162) of the inner side of casing (160) is positioned close to the outer periphery of the roller. Two radial sections of the inner side are in the vicinity of appropriate side surfaces of roller (100). As a result, a chamber for supplying fluid is formed between roller (100) and casing (160). The pipeline for supplying fluid is mounted for permitting supply of fluid to the chamber for receiving fluid.

EFFECT: enhanced reliability.

14 cl, 10 dwg

FIELD: mechanical engineering; hyperboloid gearings.

SUBSTANCE: invention can be used in spiroid drive with rotaprint lubrication of gearing in processes where application of liquid and plastic lubricants is not desirable or intolerable, for instance in food, chemical, textile, space and vacuum techniques and at superhigh and superlow temperatures. Worm 3 made of antifriction material contain grooves with press-fitted solid lubricating material, for instance, graphite or molybdenum disulfide. Direction of grooves corresponds to direction of cut of worm 3.

EFFECT: improved application of lubrication to friction surfaces of friction pair members.

2 cl, 3 dwg

FIELD: automotive industry.

SUBSTANCE: .gear box (10) comprises at least two sections (20) and (22) and is made for permitting partial lubricating by means of lubricant (24) from pad. Each section (20) and (22) has a part of casing. The parts form a part of the pad for lubricant.

EFFECT: enhanced reliability.

8 cl, 8 dwg

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