SU1221277A2 - Ice-breaking apparatus - Google Patents

Description

The invention relates to the equipment of machines for chipping ice and compacted snow from pavements and sidewalks.

The aim of the invention is to increase efficiency by automatically adjusting the impact force.

Fig. 1 shows a device for cleaving ice and compacted snow, top view; FIG. 2 is the same hydraulic circuit;

The ice-cleaving device includes a frame of push-rods-bars 2 installed on the base chassis, to which the front part of frame 8 is attached through hydraulic cylinder 3 with hinges 4 and 5 and hinges 6 and 7 to the front chassis. Additional frame 9 is installed on the front of frame 8 by means of central hinge 10 and two balancing springs 11 inserted into slots 12 along the edges of the front part of the frame 8 and the additional frame 9. In the additional frame 9 two guides 13 are made, on which with the help of sliders 14 in the housings 15 hydro-pneumatic impactors with housings 16 and cleavers 17, spring-loaded relative to the housings 15 by means of springs 18c axially displaced and kinematically connected with automatic impact energy control units 19 attached through flanges 20 to housings 15, the frame of the pushing bars 2 is connected to the frame of the base chassis 1 by two hydraulic cylinders 21

with hinges 22 and 23 and hinges 24, I

The hydropneumatic impactor consists of a housing 16, a piston –block 25 s 26, 27 and a shank 28, on which a movable piston 29 is installed, a piston block 25 divides the housing 16 into a platoon 30, a discharge cavity 31, and a pneumatic accumulator 32, filled compressed gas. An annular groove 33 is formed on the piston-striker 25, which with the channels 34-38 forms a control valve. In the case of the control unit 39 there is a rim 40 with an annular groove 41, which through the channel 42 is centered with the drain line 43, and through the channel 44, the pipeline 45 and channel 38 - with a discharge cavity 31; Drain radial channel 42 is made in housing 39 ta21277

In this way, at the time of discovery. the spool 40 it is cut off from the sink - a pore 31, the Zazolotnikov cavity 46 is connected through the channel 47

5 with a control piping 48 in which a check valve 49 and an automatic impact energy control unit 19 with a piston 50 and a plunger 51 are included, and the control valve

 The cavity 52 formed by them is connected to the battery 53. The stem 544 of the plunger 51 is kinematically connected with the body 16 of the percussion device, the rod 55 has a cavity through channel 56,

15, the conduit 57 is connected to the hydraulic tank 58 of the base chassis 1; the overflow channel 59, when opening the spool 50, can connect the zolotnikovy cavity 46 of the percussion device through

20 additional pipeline 60 and channel 61 with an annular groove 33 on the piston-striker 25 and then using channel 38, pipeline 45, channels 44 and 42 with a drain master 43, Hydropneumatic drummer has an axle 62 in which the rod 63 is movably mounted with a calculator 17, and can be moved in a special casing 15 with stroke limiter 64, the hydraulic system includes a hydraulic pump 65, a pressure line 66 supplied to the channel 35, and a safety valve 67, the base chassis is mounted on

35 pavement, which must be cleaned of ice and compacted snow. In the initial position, the impactor devices 16 occupy the leftmost position (according to the drawing).

40 by means of the spring 18, the left extreme position is occupied by the piston-head 25 and the movable piston 29 under the action of the pressure of the gas of the pneumatic accumulator 32 and the cleaver 17 with

45 by the rod 63, Under the action of the compressed gas of the pneumatic accumulator 32, the piston 50 and the plunger 51 with the rod 54 also occupy the right and left end (according to the drawing) position. Spool

50 of the control unit 39 under the pressure of the working fluid coming from the hydraulic pump 65 through the pressure line 66 through the channel 35, the annular groove 33, the channel 34, controlling

55 pipeline 48, check valve 49, channel 47 to the zolotolnik cavity 46, occupies the right extreme (according to the drawing) position. Hydraulic cylinders 3, 21

an additional frame 9 is installed at such an angle to the surface being cleaned, at which the best splitting conditions are provided. The transfer to the movement of the base machine is switched on for the purpose of static pressing of the cleaver and the limiter section of the control by the hydropneumatic percussion devices 16. The working fluid from the hydraulic pump 65 through the pressure line 66, the channel 35 enters the charging cavity 30 - the piston of the piston 25 starts and the gas pressure increases simultaneously in the pneumoaccumulator torus-32. During the charging period, the piston-firing pin 25 with its right-hand rim 27 cuts off the drain cavity 31 from the drain main 43 and communicates via control the pipeline 48, block 19 automatically shock control and an additional pipeline 60 with the zolotnikovaya cavity 46 of the control unit 39, while under pressure of the working fluid in the drain cavity 31, the control spool 40 moves to the left extreme position (according to the drawing), displaced the working fluid from the cavity 46 through conduit 60 and to the piston 50 through the channels 61 and 59 through the control pipeline 48, the annular groove 33, the channel 38, the pipeline 45, the channel 44, the groove 41 on the spool, the channel 42 and further to the drain line 43,

and at the end of the stroke the open spool 40 divides the channels 42 and 44, the compartment thereby the drain cavity 31 from the drain line 43. Moving the piston 50 to the left is accompanied by displacing the working fluid from the cavity 52 into the battery 53. When the spool 40 is opened, the piston stroke -break 25,

at the end of which he strikes the bar 63 of the cleaver 17, the destruction of the array occurs. In case of insufficient destruction, the expander is inserted into the array into a smaller

depth and therefore, with simultaneous movement of the base chassis 1, there is a longitudinal movement of the impactors with simultaneous compression of the springs 18 in a special housing 15, which

accompanied by an increase in pressure in the control cavity 52. Now, in order to open the valve 40, there is a need for greater pressure in the discharge cavity 31, which is achieved by a large

move the piston cocked and, consequently, more energy transferred to the array at the moment of impact on the bar 63 of the spalifier 17. With sufficient destruction under the action of the spring 18, the striker takes the initial position, and under the pressure of the gas of the battery 53 the piston 50 and plunger 51 stem 54 also occupy the original positions. Then the cycle repeats

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Compiled by G. Belotserkovsky tehred o.Sopkokorrektor v.Sinitska

Order 1556/36

Circulation 514Subscribe

VNIIPI USSR State Committee for Inventions and Discoveries

113035, Moscow, F: -35, 4/5 Raushsk Nab.

. Branch ShSh Patent, Uzhgorod, st. Project, 4

Claims (1)

CHIP DEVICE ICE by Autost. No. 1157157, which requires that, in order to increase efficiency by automatically controlling the impact force, it is equipped with a plunger with a rod, as well as a piston located in the body cavity, which is rigidly mounted on an additional frame, is hydraulically connected to the block control through a non-return valve and in communication with the battery, while the hydro-pneumatic hammer shells are mounted with axial displacement, kinematically connected with the rods of the plungers and spring-loaded relative to the bodies of the latter. SU,.,. 1221277 so that at the moment of opening the spool 40 it is cut off from the drain cavity 31. The ash-hole cavity 46 is connected 5 through the channel 47 to the control pipe 48, which includes a check valve 49 and a block 19 for automatically controlling the energy of impacts with a piston 50 and a plunger 51, wherein the control cavity 10 formed by them 52 is connected to the battery 53. The rod 54 of the plunger 51 is kinematically connected with the housing 16 of the percussion device. The rod cavity 55 through the channel 56, 15, the pipe 57 is connected to the hydraulic tank 58 of the base chassis 1. When the spool 50 is opened, the overflow channel 59 can connect the asphalt cavity 46 of the percussion device through 20 additional pipe 60 and channel 61 with the annular groove 33 on the striking piston 25 and Further, with the help of channel 38, pipeline 45, channels 44 and 42 with a drain line 25 ral 43, the Hydropneumatic hammer has an axle box 62 in which the rod 63 with a cleaver 17 is movably mounted and can be moved in a special case 15 with a stroke limiter 64. Guy the throttle system includes a hydraulic pump 65, a pressure line 66 supplied to the channel 35, and a safety valve 67. The base chassis is installed on the 35th section of the road surface, which must be cleaned of ice and compacted snow. In the initial position, the percussion devices 16 occupy the left extreme position (according to the drawing) 40 using the spring 18, the left extreme position is occupied by the striking piston 25 and the movable piston 29 under the action of gas pressure of the pneumatic accumulator 32 and the cleaver 17 with a 4 $ rod 63. Under the action of the compressed of the gas accumulator 32, the piston 50 and the plunger 51 with the stem 54 also occupy the right and left extreme (according to the drawing) position. Spool 50 40 of control unit 39 under pressure of the working fluid coming from hydraulic pump 65 through pressure line 66 through channel 35, annular groove 33, channel 34, control pipe 55 48, non-return valve 49, channel 47 into the asphalt cavity 46, occupies the rightmost ( according to the drawing) position. Hydraulic cylinders 3, 21