SU1756597A1 - Motor - Google Patents

Abstract

Usage: in the pneumatic hand tool. SUMMARY OF THE INVENTION: The working section comprises a housing with channels for supplying and discharging working medium and guides. A slider is placed in the housing with the possibility of reciprocating movement. The slider has an internal cavity and inlet and outlet windows. The piston is placed in the cavity of the ram and forms the working chamber. The second working section is placed on the output shaft coaxially with the first one. The dividing wall is located between the sections. Each piston is made in the form of a disk, eccentrically mounted on the shaft. The three lateral surfaces of the slider are made concave. The pistons are displaced by 90 °. 7 il.

Description

The invention relates to a pneumatic hand tool mainly to a device for drilling (drills), in which the reciprocating movement of the slide and the rotary movement of a flat disk (plunger) are converted into rotational movement by an eccentric mounted in a flat disk shaft equipped with a cutting tool, for example, a drill.

Engines are known patent of the Republic of Czechoslovakia No. 93391, N.kl, -46d, 5/01; 88b, 2 (1)

for Great Britain No. 1479289, N.kl. F 1 B; M.K1 F 01 B 7/20; F 20 V 33/20

(2)

USSR Author's Certificate No. 1019087, M.kl. F 02 B 57/00 (3)

The motor contains a stator, a lid, a monthly protrusion made integral with the lid, a rotor made with a shaft and teeth - plungers. The guide gear is mounted on the axle eccentric with respect to the shaft, fixed in the lid.

An inlet and outlet for the energy carrier are made in the stator. The guide gear has internal teeth — cavities that mate with the eccentric surface of the stator and engage teeth with the plunger.

Under the action of the energy carrier, which enters through the inlet to the working chamber (not indicated) of the engine, simultaneous rotation of the rotor and the guide gear occurs.

The engine includes a cylinder cover, piston, slide, disc and eccentric.

A slit (groove) for a slider is made in the piston, a disk hole is made in the slider, and an eccentric pin is fixed in the disk in the cylinder.

Piston A has bottoms A1 and A2.

The slider B is mounted in a slot (slot) T The disk C is rotatably mounted in the opening of the slider.

sl C

-c

Xi

The finger is rigidly connected to the central part with the disk, and the extreme parts are rotatably mounted in the cylinder. A device connecting the slider with the cylinder provides for relative movement of the slider, piston and cylinder. The cylinder and piston in the machine tool are provided with windows, the windows of the piston opening into its internal cavity. And the piston and slider operate in two-stroke cycles with a phase shift of 90 °.

The axis of the finger is perpendicular to the axis of the cylinder. When the piston is located at the extreme points of the stroke, inside the slot T, cavities Ki and 2 2 are formed above and below the slider B and under it.

After ignition, the piston moves and rotates the eccentric pin. In this case, the slider B displaces the air from the cavity Ki through the bypass forces Fa, F4, purging the chamber H2. At the same time, air through the GI window is sucked into the cavity K2. Upon further movement of the piston A, the windows Pz, R, GI and G2 overlap, and compression occurs in the chamber Hg. Simultaneously, the slider B reaches the BMT. Further movement of the piston causes opening of the windows G2, F2, EI and lowering the slider, which sucks air through the window G2 into the cavity Ki and forces air out of cavity K2 through the windows F2, FI, Ei.

The engine (3) contains a housing, a rotor with opposed cylinders, oppositely placed pistons with rods fitted with protrusions and depressions, one of the rods made with a central protrusion, and the other with a central apad, an output shaft with eccentrics, gas exchange system and ignition, in addition, the eccentrics of the shaft are turned one with respect to the other by 180, the rod of each piston of the opposite pair is mounted on the eccentric with the possibility of the protrusion of one rod in the hollow of the other zunami and piston rods - grooves for receiving slides that are associated with the cams.

The engine closest to the claimed one is (3).

The disadvantages of the prototype - the complexity of the design, high complexity of processing.

The purpose of the claimed invention is to simplify the design and increase reliability by reducing distortions due to an increase in the support surface.

The goal is achieved by the fact that a well-known engine, including a working

a section comprising a housing with channels for supplying and discharging the working medium and guides housed therein with the possibility of reciprocating

moving the slider with an internal cavity and inlet and exhaust ports, a piston placed in the cavity of the slider to form working chambers and the output shaft is provided with an additional working section placed on the shaft coaxially with the main as well as a dividing partition located between the sections, each piston made in the form of a disk eccentrically fixed on the shaft, the outer side of the slide surfaces are made concave, and the pistons with the main and additional sections are offset by 90 ° relative to each other.

FIG. 2 shows the main view of the engines, the main disk has not reached the extreme lower position, and the additional disk is from the extreme lower position.

Figure 2 shows the right side; the main and additional disks take up the position as in FIG. one.

On fig.Z depicted right side; the main disk is in the uppermost position, and the additional disk is in

0 extreme low position

Figure 4 shows the main view of the engine; the main disk occupies the uppermost position, and the secondary disk occupies the middle position (the dashed

5 line).

Figures 5 and 6 show the main disk, respectively, in the middle and lower extreme (downward movement ended) positions.

0 Figure 7 shows the main disk in the middle position when moving up

The engine, which includes a working section (not specified) contains body 1, main 2 and additional 3 slide blocks,

5 main 4 and additional 5 disks rigidly connected by means of an eccentric 6 mounted in bearings (not indicated) of housing 1, mainly basic and additional sliders are made respectively of basic 7 and additional 8 prismatic holes through which the main 4 and additional 5 disks roll In addition, in the sliders there are 9 main and an additional 10 upper channels, as well as

5 main 11 and additional 12 lower channels. The upper 13 and lower 14 input channels and the upper 15 and lower 16 output channels are made in the housing.

Basic and additional floating top 17 v. 18 and lower 19 and 20 working chambers are formed by cylindrical surfaces (not indicated) of the main and additional disks, side surfaces of the main and additional prism openings 7 and 8, side surfaces (not indicated) of the partition wall 16 and the main 22 and additional 23 covers . In the upper (not indicated) and lower (not indicated) walls of the housing 1, the lower 24 and upper 25 channels are made, which are a continuation of the channels 13 and 14,

The main slider is installed in the main prismatic guides formed by surfaces 26, 27, 28 and 29.

An additional slider 3 is installed in the additional prismatic guides formed by the surfaces 30, 31, 32 and 33.

The claimed engine operates as follows.

Figure 1 shows the position when the main disk has not reached the bottom dead center (n.mt), and the additional disk has left the bottom dead center. That is, the main disk continues to move down, and the additional disk has finished moving down and on the drive to move up. At the same time, the energy carrier enters the main upper floating working chamber 17 via channels 13, 25, 9, and into the additional lower floating working chamber 15A through channels 14, 24, 12.

The energy carrier, for example, compressed air, drives the movement of the slider and discs, rotating the latter relative to the eccentric 6.

At the same time, the air ejected from the main lower floating working chamber 19 through the channels 11, 24, 16 and from the additional upper floating working chamber 18 through the channels 10, 25, 15 is discharged into the atmosphere.

Fixed rigidly on the eccentric 6 and rotated relative to each other at a certain, for example, 90 ° angle, the main and additional discs represent one block. This block, rotating relative to the bearings (not indicated) of the eccentric 6, moves the main and additional slider. The sliders, having made a reciprocating motion, communicate or divide the channels 9, 10, 11 and 12 of the main and additional upper 17 and 18 and lower 19 and 20 working chambers with channels 24 and 25 of the housing and with the atmosphere.

When the main disk 4 occupies the uppermost position (see Fig.4), i.e. is in the upper dead center (V.M.T.) - channels 9 and 25, 11 and 24 are separated and the energy carrier does not flow into the main upper working chamber 17 (in figure 4 the chamber 17 is not shown conventionally, in fact it is a narrow mesothelium gap located above. From V.M.T., the main disk 4 emerges with the help of an additional disk 5 (in Figure 4, disk 5 is shown by a dashed line and is located to the right of the axis passing through the axis of the centrifuge), the additional upper working chamber 18 of which is communicated via channels 13 , 25 and 10 with a source of energy carrier. At the same time, from chamber 20 (in Fig. 4, chamber 20 is shown by a stroke and located 15 to the right of the axis passing through the axis of the eccentric) the energy carrier pushed out by an additional disk 5 to the atmosphere through channels 12, 24 and 16 .

The energy source is supplied simultaneously to the upper 13, 25 and lower 14, 25 inlet channels of the housing. Due to this, an instantaneous supply of energy to the working chamber, which due to the reciprocating movement of their sliders, was communicated through the channels 9, 10, 11, 12c with the above-mentioned upper 13 and 25 and lower 14 and 24 input channels, is ensured.

Under the influence of energy

0 (see Fig. 4), the additional disk 5, rotating about the axis of the eccentric 6, goes down and takes out of the VMT. the main disk 4, the latter will move the main slider 2 to the right, and the slider 2 will report channels 13, 25

5 and 9 with the main upper working chamber 17. In this case, the additional disk 5 will occupy the lowest position (NMT.T), its axis coincides with the axis of the eccentric 6, the channel 10 of its working chamber 18 is disconnected from the upper input channel 13 and with the atmosphere. Then the main disk 4, lowering down to its N.M.T., will output from N.M.T. additional disk 5. At that, additional slider 3 will inform channels 12, 24 and 14 with the source of energy carrier, and channels 10, 25 and 15 - with the atmosphere. And so on.

Distinctive features of the claimed engine in combination with the known ones provide it with increased reliability.

0 and the simplification of the design due to;

- exclusion of the crank mechanism and valves;

- exclusion switchgear.

5 In addition, real prerequisites are created for creating powerful and cheap hand tools by increasing the number of additional working chambers, disks, sliders, etc., as well as reducing the labor intensity of manufacturing.

Claims (1)

The invention The engine includes a working section, comprising a housing with channels for supplying and discharging the working medium and guides, a slider with an internal cavity and an inlet and outlet ports for reciprocating movement, a piston located in the cavity of the slide with the formation of working chambers , and the output shaft, which is characterized by the fact that, in order to simplify the design and increase the Reliability by reducing distortions due to an increase in the support surface, it is equipped with an additional working section placed on the shaft coaxially with the main and partition walls located between the sections, each piston being made in the form of a disk, centered on the shaft, concave, and the pistons of the main and additional sections are offset relative to each other by 9 (7. Fig. " Rig i $ Yuf I G / iGS9Ga 9t 25 / 3 25