RU195668U1 - Motoblock - Google Patents

Abstract

The utility model relates to agriculture. The motoblock contains a gearbox (3) mounted on the frame (1), a steering wheel (4), a coulter (5) with support (transport) wheels (6) and a trailer part (10). The trailer part (10) is mounted on the frame (1), and the coulter (5) is installed at an angle of 100≤α≤110 ° relative to the horizontal component of the trailer part (10). EFFECT: increased convenience of using a motoblock. 4 ill.

Description

The claimed technical solution relates to agricultural means of small-scale mechanization and is intended for various agricultural work on tillage (cultivation, cultivating, cultivating), as well as for mowing grass, snow removal, sweeping garbage, pumping water, and transporting goods.

Motoblocks are known and produced by both Russian and foreign enterprises.

Known, for example, walk-behind tractor (RU 129334 U1, 06/27/2013, [1]). As in the claimed technical solution, the analogue [1] contains a frame on which the motor and gearbox are mounted. The opener is located on the rear of the frame.

An analogue [1] has a bracket on the back of the frame. A support is removably mounted on the bracket, on which the coulter bar is mounted vertically adjustable. The steering rack is removably attached to the upper part of the gearbox, to which the steering handles of the motoblock movement control are attached.

Also known is the "Tarpan TMZ-MK-04" motor-cultivator (G. Serikova, "Modern gardening equipment and accessories" - M: Ripol Classic, 2011 - ISBN 978-5-386-03820-5, p. 56-58, [ 2]). As in the claimed technical solution, the analogue [2] contains a frame on which the gearbox and engine are mounted, as well as the steering column, steering wheel and cutters. A coulter with wheels is fixed on the rear of the frame.

The specified analogue [2] is the set of essential features the closest analogue of the same purpose to the claimed technical solution. Therefore, it is adopted as a prototype.

The technical problem, the solution of which is provided during the implementation of the technical solution, is the need to increase the comfort and ease of use of the motor block.

An analogue of [1] and prototype [2] openers during movement of the walk-behind tractor create resistance to movement.

The technical result of the claimed technical solution is to increase the usability of the walk-behind tractor.

The technical result is achieved in that the walk-behind tractor comprises an engine mounted on a frame, a gearbox, a steering wheel, a coulter with support (transport) wheels and a trailer part, while the trailer part is mounted on the frame. The coulter is installed at an angle of 100≤α≤110 ° relative to the horizontal component of the trailer part.

The above set of essential features ensures the achievement of the claimed technical result.

The author of the claimed technical solution made a prototype of this solution, the tests of which confirmed the achievement of technical results in the above range.

In FIG. 1 shows the walk-behind tractor in operating position.

In FIG. 2 - walk-behind tractor in transport position.

In FIG. 3 - cultivator cutters in working condition.

In FIG. 4 - angle of attack of mills (knives) of the cultivator.

The motoblock (Fig. 1) contains a frame (1) on which a motor (2) and a gearbox (3) are mounted. The walk-behind tractor also contains a steering wheel (4), a coulter (5) with support wheels (6) and cutters (7).

The output shaft of the motor (2) is connected to the input shaft of the gearbox (3) (not shown).

The gearbox (3) is mechanical, gear-chain. The gear housing (3) is made of aluminum. There are stiffeners on the body. All gears and shafts of the gearbox (3) are hardened.

The steering wheel (4) is designed to control the walk-behind tractor. In order to reduce the level of vibration, the steering wheel (4) is mounted on the gearbox (3). On the steering wheel (4) there is a clutch handle (8) and a gas handle (accelerator) (9).

The clutch handle (8) is used to turn the engine (2) on and off and to start moving and stopping. When the clutch handle (8) is in the upper position, the walk-behind block is stopped, the engine (2) is turned off - the clutch is turned off. When the clutch handle (8) is in the lower position - the clutch is on, the engine (2) is on. The clutch handle (8) has a variable section, which reduces the load on the wrist.

A coulter (5) (Fig. 2) with support wheels (6) is installed on the back of the frame (1), it is designed to work with cutters (cultivators) (7) by deepening it into the ground and obtaining the necessary depth of tillage during cultivation. The coulter (5) is installed at an angle α = 106 ° relative to the horizontal component of the trailer part (10), mounted on the trailer part (10) with an axle with a cotter pin and is height-adjustable using holes on the coulter (5). On the opener (5), support (transport) wheels (6) are located, which allow you to transport the walk-behind tractor to the place of operation without damaging the lawn or paving slabs with knives. The location of the support wheels (6) in the rear of the walk-behind tractor allows you to distribute the entire mass of the walk-behind tractor to the support wheels (6) and move it without significant strain on the arms and back.

Milling cutters (7) are intended for cultivation (milling) of soil and are installed on the shaft of the gearbox (3) (Fig. 3).

Examples of specific performance.

Example 1. The speed of rotation of the gearbox shaft at the level of 80-120 rpm Due to this speed, the walk-behind tractor working on mills (7) moves forward and loosens the soil to the state necessary for planting.

Example 2. The center of mass of the walk-behind block is located above the mill (7).

Example 3. The milling knives (7) are made of special structural steel by hot forging. The design of the knives reduces vibration during operation. The angle of attack of the knife β = 90 ° allows the knife to more efficiently loosen the soil (Fig. 4).

Example 4. In the motor blocks of the MKM-2 and MKM-3 series, the Mobil K Strong Transmission 2000 gearbox is used, in which: linear forward speed is 2.58-8.34 km / h, forward gear speed is 35-120 rpm, linear speed back is 1.79-2.58 km / h, the gearbox reverse is 23-34 rpm. In the MKM-4 series motor block, a Mobil K Strong Transmission 2000+ gearbox is installed, in which the linear forward speed is 2.3-9.25 km / h, the forward speed of the gearbox is 35-120 rpm, the linear backward speed is 1.6 -2.87 km / h, the gearbox reverse is 23-34 rpm.

Example 5. On some models of the device, the coulter is installed with the ability to adjust the angular position.

Example 6. The coulter (5) is preferably installed at an angle α = 106 ° relative to the horizontal component of the trailer part (10).

The implementation of the proposed technical solution is not limited to the above examples.

Description of work and use.

To prepare the walk-behind tractor for operation, depending on the physical data of the operator, the steering wheel position is adjusted (4). The gas knob (9) is moved 2/3 towards the maximum speed. Gently press the clutch handle (8), moving it from the “off” position to the “on” position and begin to move. Changing the speed of the motoblock within the set speed is carried out by moving the gas handle (9).

Unlike the prototype [2], neither when moving forward nor when moving backward (the walk-behind tractor has a rear speed) the opener (5) does not create resistance in the ground due to the installation at an angle of 100≤α≤110 ° relative to the horizontal component of the trailer part (10) thereby making work even more comfortable and convenient.

If necessary, move the walk-behind tractor on the support (transport) wheels (6) transform the opener (5) into a transport device. To do this, the opener (5) is turned over with a knife-ripper to the top.

The claimed technical solution is implemented using industrially produced devices and materials and can be applied at any agricultural enterprise and in a personal subsidiary farm.

Claims (1)

A motoblock comprising a motor mounted on a frame, a gearbox, a steering wheel, a coulter with support transport wheels and a trailed part, the trailed part being mounted on the frame, the coulter mounted on the trailed part, characterized in that the coulter is installed at an angle α = 100-110 ° relative to the horizontal component of the trailer part.

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