SU32512A1 - Trailed snow plow for non-road roads - Google Patents

Description

The invention relates to trailed snow plows for non-track roads using a rotary cutter located across the road with radially arranged blades for raking the snow mass.

 The snow blower is driven into rotation by the tractor engine. The cutter rotates in the direction opposite to the tractor's movement, cuts off the snow in the form of chips and dumps it into a trough located inside it. Here, the snow is caught by the rotating auger and is led out at the end of the trough, where the rapidly rotating scattering screw is removed outside, being placed on the roadside in a uniform layer, not forming so dangerous rollers in the event of a new skid. The length of the cutter is usually 3 times the width of the path, and the road, therefore, is cleaned in two passes. The transmission for transmitting movement from the tractor engine to parts of the snow blower is designed so that it cannot be upset when lifting it from the lower working position to the upper non-working one.

In the schematic drawing of FIG. 1 shows a side view of a snow plow attached to the rear of the tractor; FIG. 2-side view of the snow blower from the side of the transmission; FIG. 3-side

a & 7) -;

view of the snow blower from the side of the bell; FIG. 4-plan snowplow, and FIG. 5-axial longitudinal section of the snow plow.

A snowplow consists of three main parts: 1) cutters with radially located blades 2 of FIG. 2 and 4), 2) fixedly fortified inside the cutter trough 17 and 3) screw 19, rotating in the trough 77 and carrying the spreading screw 26 at its end.

As the snowplow moves progressively (in a trailer to a tractor or other engine) and simultaneously rotates the cutter, the latter, with its blades 2, captures the snow and throws it into the trough 77. goes to the side.

The snow blower milling cutter consists of four annular disks 5 (FIGS. 4 and 5) centered on one axis. Between the discs in the radial direction are welded or riveted blades 2, which, with the discs, make up the openwork cylindrical drum system with a free passage between adjacent blades.

For a more uniform loading of the trough 77 with snow during one revolution of the shaft, the blades 2 in each link of the cutter are shifted relative to the adjacent link by a certain angle (Fig. 4). The milling cutter at one end rests on the main one. shaft 3 by means of a sliding ball bearing 4 attached to the outermost disk 5 of the cutter. The other end of the mill is supported by roller rollers on the flange of the discharge socket 7, which serves as a guide for the rollers during the rotation of the mill. Discharge bell 7 tightly attached to the main frame 8 snowplow.

On frame 8, finger 9 is fastened on which sleeve W (Fig. 5) with spur gear // and sprocket / 2 is loosely mounted. The gear / 7 is engaged with the internal gear / J attached to the milling disc 5. The rotation of the hub is transmitted using an asterisk / 2, which is connected by a Gall chain or another transmission by an asterisk / 4 (Fig. 1), mounted on a drive shaft J6, located on a tractor or another engine. Measles / 7 at one end is supported by a ball bearing fS on v, al 5 and at the other end open from the end to release the snow, tightly attached to the main frame 8 of the snow blower. Thus, the trough is kept constant in a stationary state. Auger J9, placed inside the trough / 7, serves to move the snow, trapped in the trough, to its exit free end. The screw surface of the screw / P is attached to the main working shaft 3 and is integral with it. The working shaft 3 at one end rests on the main frame 8 using a ball bearing 20 and the sub-stick 2 /, and the other on the ball bearing 22 (Fig. 5), fixed to the output end of the trough / 7 using radial struts 23 (Fig. 3) tightly attached to the trough. Rotation of the auger / Rososveshcheno using an asterisk 24, tightly mounted on its shaft and connected by a flexible transmission with an asterisk 25 (Fig. 1 and 2), sitting on the drive shaft / b. At the end of the screw shaft in the socket 7 of the trough / 7, the snow spreading screw 26 is strengthened. The purpose of the screw 26 is to disperse the outgoing snow mass in an even layer to avoid the formation of snow banks on the sides of the strip being cleaned - which greatly contribute to the new drift of the cleaned strip .

The main frame 8 is, in plan, a rectangle made of iron of a channel section. To one side of the frame 8 are attached tightly suspension 29 (Fig. 1), which are freely seated on the manufactured bushings of the bearings supporting the drive shaft / 6. Thus, the frame with all parts of the mechanism attached to it can have free rotation around the axis of the drive shaft / 5, which allows unimpeded operation of the transmission resulting in rotation, auger and cutter, with all the frame positions. With its other longitudinal side, the frame is attached to the tractor cab with the help of the bracket 32 (Fig. 1), attached tightly to the frame, and the telescopic struts 33, pivotally fastened on one side with the bracket 32, and on the other side with the bracket 34 attached to tractor cab. The telescopic strand 33 consists of two hollow tubes that are inserted one into the other and have coincident holes 35 for securing with a cotter pin and for a certain strand length. In order to facilitate the operation of raising or lowering the snowplow using a strut, each of them has a device consisting of an internal toothed rack 36 welded into the inner tube, a cylindrical gear 37 fixed on the tide 38 to the outer tube and in engagement with the rail through a corresponding hole, located in the outer tube, and the handle 39, sitting on the same axis with the gear and enabling it to rotate. the gears push in or out the inner tube and thereby lengthen or shorten the tie rod. Upon reaching the desired position of the snow blower, a pin, a check or a bolt is inserted into the apertures 35, and thus the hanger is secured in the working position. In order to protect the outside spaces from the snow, where the transmission parts of the mechanism are located, an apron 40 (Fig. 5) is attached to the frame on one side,

in its form represents the smallest resistance to movement of the device, and on the other hand another apron in the form of a scraper 41. Scraper 41 has a rotation around a vertical axis 42, fixed to the frame 8 in order to install the scraper at any angle of inclination to the direction of movement of the snowplow. The set angle is fixed by the tie 48, with one end pivotally fastened to the scraper, and at the other, hook-shaped, laid into the corresponding hole on the bar. When moving the snow blower, the scraper moves the snow to the side and thus protects the socket 7 from snow. On top of the snow plow covered with a casing 29 (Fig. 2 and 3), which is attached to the main frame 8.

The drive shaft / 5, from which the rotational movement is transmitted to the snowplow mechanism, is attached to the brackets on the brackets, which in turn are bolted to the rear beam i46, on the tractor frame / frame (Fig. 1 and 4). A bevel gear 48 (Fig. 4) is mounted on the drive shaft 16, which is in engagement with the bevel gear P on the tractor 50 main shaft. To turn the snowplow on and off, the bevel gear 48 is mounted on the shaft freely and can be inserted into the clutch with the gear coupling 5 / using a lever from the driver’s cab.

In front of the tractor, a small snow plow 55 is installed in front of each track, which clears snow to the width necessary for the tractor to move freely.

To prevent breakage of the cutter, the snow blower 1tel, in case it is caught by the blades together with snow, of any random objects that may appear on the road bed (stones, etc.), a safety device is attached to the main frame 8 in the form of comb, consisting of vertically, set by the scheme 59 (figs. 2, 3 and 5), fastened together by longitudinal rods 55. The entire comb is attached to the frame 8 of the snow blower with the help of the bar 62. When clearing the road the snow plow is first passed one half of the canvas road and snow on it clears a width equal to the length of its working part. Reverse occurs on the other half of the road bed, which is cleared to the same width. Thus, in two passes of the snowplow, the entire roadbed is cleaned.

;

The subject matter of the invention.

Claims (4)

1. A trailer snow plow for non-track roads using a rotating milling cutter with blades radially arranged in it for raking snow mass, characterized in that inside the snow milling cutter a fixed trough 7P with rotating screw 7P in it, on the shaft 5 of which is in the socket 7, a spreading screw 26 is disposed to spray the snow mass on the sides of the road 77 in an even layer without forming rollers (Fig. 5). 2. A trailer snow plow according to claim 1, characterized in that in order to effect free rotation when raising and lowering the snow plow into the working position, without disturbing the transmission, it is fixedly attached by one side of its frame to the suspension 29 which is freely mounted on the drive shaft 16, and the other side of the frame is suspended from the tractor cab by means of brackets 32, 34 pivotally connected by telescopic tubular straps 33, which are fastened together with pins in holes 35 (Fig. 1). . 3. A trailer snow plow according to claims 1 and 2, characterized in that for raising and lowering the snow plow into the working position by means of tubular straps 33, a handle 39 is provided with a gear 37 fixed on the outer tubular straps 38 tide 38 and coupled to the rack 36 on the inner tubular sleeves ( Fig. 1). 4. In the case of a snow plow according to claim 1, use for protecting the cutter from breakage of vertical rods 59 attached to the frame, fastened between themselves by longitudinal rods 5 forming a comb (Fig; 5).