RU2338861C2 - Dudin twin rotor stepping turbine - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: invention can be used as a hydraulic turbine for producing electric power, as a pneumatic and hydraulic turbine making a drive in heading machines, as well as in drilling gas and oil holes. Twin rotor stepping turbine incorporates an asynchronous reduction gear. Inner (5) and outer (6) rotors are fitted aligned on the aligned shafts, the outer and inter rotor vanes entering their inter-vane space to come into contact with the inner rotor outer surface and the outer rotor inner surface, respectively, so as to turn the said rotors in turn one way through the designed angle from the acting working clearance which allows filling the rotors' inter-vane space via the slide valves fitted on the turbine inner and outer rotors. Note that the aforesaid rotors are rigidly linked with the aforesaid inner and outer aligned shafts of the asynchronous variable gear ratio reduction gear to allow asynchronous one-way rotation of the twin turbine inner and outer rotors.

EFFECT: smaller turbine overall sizes and higher output.

5 dwg

Description

The invention relates to mechanical engineering and can be used as a hydraulic turbine to generate electricity, pneumatic and hydraulic turbines as a drive in mining, as well as when drilling oil and gas wells.

Known currently used single-rotor and bi-rotor vane turbines, which are used to rotate the rotor. The high-speed flow of the working fluid (water, gas, working solution) does not give a large torque on the working shaft.

Known biirotor turbines (patent No. 80162 and patent No. 1716173), which have the same disadvantages as single-rotor, they are structurally designed only for reverse rotation of the working shaft.

The prototype was taken turbine gear turbodrill (patent RU No. 2112856).

The aim of this invention is to provide a turbine whose power is an order of magnitude higher than existing with smaller dimensions.

This goal is achieved due to the fact that the turbine blades are affected by the static pressure of the working fluid created by the height of the liquid column above the turbine (Pascal's law P = f (N), where N is the height of the liquid column).

The bi-rotor stepper turbine is characterized in that it contains an asynchronous gearbox with gear transmission, while the inner and outer rotors are placed coaxially on the coaxially located shafts, and the blades of the inner and outer rotors enter each other's interscapular space until they touch the inner cylindrical surface of the outer rotor and with the outer cylindrical surface of the inner rotor with the ability to alternately rotate the rotors in one direction relative to each other on the estimated ol from the action of the working solution, which has the ability to fill the interscapular space of the rotors through spools mounted on the inner and outer rotors of the turbine, which are respectively rigidly connected to the inner and outer coaxially located shafts of the asynchronous gearbox with oval gears and a variable gear ratio, providing asynchronous rotation in one side of the inner and outer rotors of the biotor turbine.

On figa and 1b presents a General diagram of the biotor stepper turbine.

Figure 2 - diagram of the relative position of the inner and outer rotors of the biotor turbine.

Figure 3 presents the layout of the oval gears of the asynchronous gearbox with a variable gear ratio.

Figure 4 presents a graph of the angular velocities of the rotors of the turbine internal - (W5) and external - (W6).

The birotor stepping turbine (1) includes a gearbox (2) and a differential (3) with housings rigidly connected to each other, equipped with shafts located in a common oil-filled chamber having hydraulic channels for connecting to the oil cavity of the diaphragm lubricator (4). The turbine has internal (5) and external (6) rotors, the blades of which are mutually included in each other's interscapular space, and the rotors themselves are mounted on the internal (7) and external (8), respectively, shafts of the asynchronous gearbox with a variable gear ratio (2) There are also spool valves-inlet (9) and exhaust (10), rigidly fixed to the outer and inner rotors of the turbine.

The operation of the turbine is as follows.

The working fluid (water, gas, working solution) has the ability to pass through the annular channel (11) inside the turbine through the spool (9) into the interscapular space of the rotors and rotate the working shaft (17) through the differential (3) alternately from the internal (5) or from external (6) rotors of the biotor turbine, which are rigidly connected, respectively, with the internal (13) and external (14) shafts of the asynchronous gearbox with a variable gear ratio, and go through the spool (10) into the hollow shaft (17) through the channel (12) and further into the annulus. For alternating step-by-step turning of the internal and external rotors of the biotor turbine in one direction at a certain angle α5 and angle α6 (Fig. 2), there is a two-stage asynchronous gearbox (2) with a variable gear ratio, connected by shafts (13 and 14) to the internal (5) and by the outer (6) rotors of the biotor turbine, respectively, one of the stages (20) of the gearbox is designed to alternately (stepwise) move the rotors during rotation, the other stage (21) to return the relative position of the rotors to their original state for a period of one the first rotation of the central gear (18) (Fig. 3), mounted on the inner shaft (13) of the asynchronous gearbox, and also for one revolution of the central gear (19), mounted on the outer shaft (14) of the gearbox. The teeth of oval gears (18, 19, 20, 21) are power to absorb the load of the working shaft of the turbine (17).

Literature

1. Patent RU No. 2112856 "Gear turbodrill".

2. Patent RU No. 30414 "Dudin's asynchronous gearbox with variable gear ratio."

3. Litvin F.L. "Non-circular gears." Mashgiz, 1950

4. Kiyasbeyli A.Sh. and others. "Counters with oval gears." 1983 year

Claims (1)

A bi-rotor step turbine, characterized in that it contains an asynchronous gearbox with a gear, the inner and outer rotors are placed coaxially on the coaxially located shafts, and the blades of the inner and outer rotors enter each other's interscapular space until they touch, respectively, with the inner cylindrical surface of the outer rotor and with the outer cylindrical surface of the inner rotor with the ability to alternately rotate the rotors in one direction relative to each other on the estimated the goal from the action of the working solution, which has the ability to fill the interscapular space of the rotors through the spools mounted on the inner and outer rotors of the turbine, which are respectively rigidly connected to the inner and outer coaxially located shafts of the asynchronous gearbox with oval gears and a variable gear ratio, providing asynchronous rotation in one side of the inner and outer rotors of the biotor turbine.

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