RU2000478C1 - Rotary machine - Google Patents

Abstract

SUMMARY OF THE INVENTION: Spring-loaded spacer plates are mounted on pusher rods and mounted in radial grooves of a cylindrical body between the inlet and outlet channels of the working medium with the possibility of reciprocating movement and interaction with the radial cams of the profiled disk. The pistons of the disk rotor are placed in the annular cavity of the housing with the formation of the working chambers. The plates, pistons and cams are diametrically opposed and are made with bevels mating with each other. The stem of each pusher is made telescopic. 4 ill.

Description

The invention relates to the field of mechanical engineering.

A rotary machine is known comprising a cylindrical body with channels for exiting the working medium, and a check valve is installed in the outlet channel.

Sleeves are rigidly attached to the machine body to form an annular working chamber in which rotor pistons are rotatably contained in the annular working chamber. The rotor is rigidly fastened to a central roller to which profiled disks with negative cams are mounted rigidly mounted with the possibility of acting on spring-loaded pushers. Pusher heads generally divide the annular working chamber into suction and discharge sections, dropping into the profile of the negative cam at the moment the piston passes over the head of the pushrod, thereby providing free passage of the piston in the annular working chamber.

The relative movement of the piston and the pusher head occurs without contact with each other with a guaranteed clearance provided by the corresponding profiles of the piston, pusher head and negative cam.

The disadvantages of the known rotary machine should be attributed to its low reliability due to imperfections in the structure of the pusher, which does not ensure the trouble-free operation of the rotor machine in the event of failure of the spring of the pusher.

The aim of the invention is to increase the reliability of the machine due to a more advanced pusher design, which prevents the machine from crashing in the event of failure of the pusher spring.

The goal is achieved as follows.

In case of failure of the spring of the pusher, which makes a power closure of the pair of pusher - negative cam and providing contactless interaction of the pair of piston

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- the head is pusher, the latter does not come out of the ring working chamber area in a timely manner.

In this case, an interaction between the piston and the pusher head occurs, which bears an impact character.

The impact force at a certain number of revolutions and the structural dimensions of the piston and the ram head will be directly proportional to the inertial mass of the ram, on whose head the piston will act as a wedge, pushing the ram out of the annular working chamber.

The telescopic rod of the push rod makes it possible to reduce the impact force of the piston on the push rod head and to avoid destruction of the whole machine. In this case, to minimize the impact force, the telescopic connector in the push rod should be made as close as possible to the push rod head, thereby minimizing the mass of the upper part of the push rod.

The proposed technical solution allows to prevent the occurrence of an emergency during operation of the rotary machine.

Figure 1 presents a General view of a rotary machine; figure 2 - section aa in fig. 1: in Fig. 3, a shaft with a rotor and profiled disks designed for axonometric view; figure 4 - pusher made according to the invention.

The rotor machine comprises a cylindrical housing 1, rigidly connected to the housing of the sleeve 2 with the formation of annular working chambers 3, in which the pistons 4 of the rotor 5 are mounted, rigidly fastened to the shaft 6. To the shaft 6 are profiled disks 7 with negative cams 8, which act on the pushers 9 installed in the guides 10 of the sleeves 2. Covers 11 are rigidly attached to the sleeves 2 with tides 12 for bearings 13. The bearings 13 are pressed by the hatches 14. In the housing 1 there are channels for the input 15 and output 16 of the working medium, while in the output channel 16 install a check valve 17. The pusher 9 has a top 18 and bottom 19 of the stem, as well as a telescopic connection 20. The bottom of the rod 21 there is a roller axle 22 to the lower portion 19

the stem is fixedly fixed to the plate 23.

The rotor machine operates as follows.

When the shaft 6 is rotated, as well as the rotor 5 with pistons 4 s that are rigidly connected to it

at the same angular velocity, the pistons 4 suck and pump the working medium through channels 15 and 16. At the moment of passage of the piston 4 above the head of the pusher 9, the latter fails under the action of

the spring is pushed into the profile of the negative cam 8, after which it again takes its initial position.

When the spring of the pusher 9 fails, the piston 4 will push out the upper part 18

the pusher from the annular working chamber 3. In this case, in the telescopic connection 20, the upper part 18 of the rod of the pusher 9 will shift with respect to the lower part 19 of the rod, thereby preventing

accident of the device as a whole.

Claims (1)

SUMMARY OF THE INVENTION A rotary machine comprising a cylindrical body with inlet and outlet channels of a working medium and an annular cavity, a disk rotor with pistons and a shaped disk with radial negative cams, spring-loaded separation plates fixed on the rods of the pushers and installed in the radial grooves of the housing between the channels with the possibility of reciprocating movement and interaction with the cams, while the pistons are placed in annular cavity with the formation of the working chambers, and the plates, pistons and cams are diametrically opposed and are made with bevels mating with each other. To increase the reliability and operation of the machine, the rod of each pusher is made telescopic.