SU1244301A1 - Working member of excavating cutter-loader - Google Patents

Description

The invention relates to the mining industry and is intended for

underground excavation ang.

The aim of the invention is to increase reliability when transmitting increased power. .

Figure 1 shows the kinematic scheme of the proposed executive body; figure 2 - section aa in figure 1. .

The executive body of the excavation combine includes a rotary gearbox-handle 1 with intermediate gear wheels 3 and 4 mounted between the inlet 5 and outlet 6 wheels mounted on the fixed axes 2. In this case, the gears 4.5 and 6 have single wide gear rims, and the wheels 3, connected to the wheels 4.5 and 6, are provided in the form of two separate gear wheels with narrow toothed gears. Each gear wheel 3 is mounted on one spherical bearing 7 wheels 4 are mounted on two roller spherical bearings 8. Elastic-damping elements 9 are placed between the inner face surfaces of wheels 3. Output gear wheel 6 rests on bearings 10 through gear coupling 11 by means of a torsion shaft 12 is associated with a unit of identical small central wheels 13 of a planetary gearbox. Figure 1 shows a block of four gears. In practice, this block can also be made in the form of one wide toothed wheel- & and with grooves. The small central wheels 13 of the planetary gearbox are connected by meshes with satellites 14 placed in gaps between flat parallel rings of rings 15 connected, in turn, between the ribs 16 and forming with them the carrier 17.

Satellites 14 of each row are installed on common axes x 18 ,. fixed motionless on the rings 15 drove 17.,.

Each satellite 14 is mounted on an axis 18 on its spherical bearing 19. The carrier 17 has supports 20 and 21. The satellites 14 of each row are internally engaged with their fixed large cent.

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Spanning wheels 22 having external rims with a b. point-shaped teeth. External gear rims large central gear wheels 22, in its

Stage 5 is connected by internal-engagement with the toothed yoke 23 rigidly fixed to the cantilever part of the housing of the gearbox-knob 1 by means of a detachable connection 24.

10 Such a structure provides a floating suspension for fixed large central wheels 22. Between the ends of the large central wheels 22, as well as between the ends of the extreme large

The tS of the center wheels 22 and the toothed casing 23 are fitted with elastic damping elements 25, for example, in the form of rubber rings reinforced with metal. Between the cams (not shown) of the neighbor 20 of them, the end surfaces of the carrier 17 of the planetary gearbox and the cover 26, the hub 27 of the working body rigidly connected by detachable connection 28, are installed elastic-damping

25 links 29. The hub 27 of the working body 30 with cutting tools (cutters) 31 is mounted on rolling bearings 32 located on the console part of the gearbox housing body 1. Work tool 30 from cutter No. 1 31 is mounted on hub 27 and rigidly fixed. n on the bridge 26 detachable connection 33.

The executive body of the excavation combine works in the following way.

35

The rotation from the single input gear 5 is transmitted to one or two double gear wheels, which are formed as two separate parallel gear wheels 3. The transmitted power flow is split in two. On a single wheel 4 with a wide toothed rim, the flow of transmitted power is summed, and then again divided into two streams, and so on. until the output single wheel 6, where this stream is summed again. The wheels mounted on their single spherical bearings 7; 3 are easily adapted to the possible deformations of the gearbox-stick housing 1 and axles 2 by turning them on the bearings 7, while maintaining the linear contact of the mating teeth of the wheels 4 and 3. Elastic damping elements .9 between the inner face surfaces

wheels 3 ensures that the wheels return to their original position after their possible deviations in the process of work of the executive body. In order to avoid unnecessary degrees of movement; gearwheels 3 of the gearbox-handle 1, it is recommended to alternate single gears 4 through one or two (but not more) double cogs 3 connected to at least the input 5 and weekends about wheels.

From the output wheel 6, through the gear coupling 11 and the torsion shaft 12, rotation is transmitted to the block of small central wheels 13 of the planetary gearbox. From gears 13 through satellites 14 mounted in the gaps between flat parallel rings 15 drove 17 on stationary axes 18 on spherical bearings 19 and meshed with corresponding large central gears

ten

22, rotation is transmitted to the carrier 17 "° ™ reducts

uMKJio | /, 25 body of the combine.

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Bearing support. In this case, the floating suspensions of large large ones are central on the toothed cage 23, ensuring their reliable operation when they are skewed during the installation process.

From the carrier 17, through its jaws, the covers 26 and the elastic links 29 are installed between their depressions, the rotation of the hub 27 and the working edge of the cutters 31, which beat the corner of the array of developed rigs, the damper links 29 decrease dynamically on the executive harvester.

Elastic omemplate 1e elele prevent axial displacement of large moving central 22s and dampen loads from distortions of these wheels in the work of planetary gearbox

15

20

ten

° ™ reducts

5 body of the combine.

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Bearing on bearings 20 and 21 In this case, the floating suspension of the stationary large central wheels 22 on the toothed casing 23 ensures their reliable operation with possible distortions in the process of installation and operation.

From the carrier 17, through its cams, the cams of the cover 26 and the elastic-damping links 29 installed between their depressions, the rotation is transmitted to the hub 27 and the working body 30 with the cutters 31 hitting the coal from the mass of the reservoir being developed. Elastic damping links 29 reduces the dynamic loads on the executive body of the excavation combine.

Elastic Odempfiruyush 1E elements 25 prevent axial displacement of the stationary large central wheels 22 and dampen the load from the possible distortions of these wheels during the operation of the planetary gearbox ism15

20

thirty

78

75

22

Editor L. Veselovska

Compiled by A. Shestimir

Tehred O.SopkO Proofreader M.Sharoshi

Order 3791/34 Circulation 470. Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Claims (2)

1. EXECUTIVE BODY OF THE DRAWING COMBINE, comprising a working body with a planetary gear located in its hub with small and large central wheels, a carrier with axles on which the satellites are mounted, each satellite on its own spherical bearing, a gear-handle with input and output wheels and intermediate gears mounted in its housing on fixed axles in series, connected by gears, characterized in that, in order to increase reliability during transmission of increased power, the planetary carrier the eductor is equipped with flat parallel colds located between the rows of satellites and interconnected ribs, while the axes of the setallites are fixed on the carrier rings, the satellites of each row are connected with their large central wheels, equipped with outer rims with barrel-shaped teeth, connected to the gear ring, rigidly fixed on the cantilever part of the gear-handle housing, and between the ends of the large central wheels and between the ends of the extreme large central wheels and the cage, an elastic modulator is installed firuyuschie elements. 2. The executive body according to claim 1, characterized in that between the input and output wheels of the intermediate sequentially connected gears of the gears of the arm are made of alternating single and double wheels made in the form of two separate parallel gears, each of which is mounted on one spherical bearing, moreover, single gears can alternate through both one and two double gears associated with at least the input and output wheels, and between the internal the surfaces of the double gears are equipped with elastic damping elements. 1244301 A1