SU1664137A1 - Minitractor - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to small-sized agricultural machinery. The purpose of the invention is to reduce the specific pressure on the soil and increase the efficiency of the use of muscular energy. The device comprises a frame 1 composed of upper and lower parts. The lower part of the frame is made in the form of an angular lever; its vertical link links the lower part of the frame with the upper one. The lower part of the frame is equipped with a propulsor 3. The leading rollers of this propulsor are placed on the same axis with the lower sprocket of the chain drive. Its upper sprocket is located in the upper part of the cylindrical groove made inside the vertical link of the angular lever. In operation, the movement from the intermediate chain transmissions is transmitted to the chain transmission, and from it to the leading rollers of the driving unit 3. 32 Il.

Description

(L

WITH

$ 7

5TS 661

SB.

/// LH ////// /// // 7 /// LU / sV // G / G / / 4 / /// /// T /// ///// U /, qyiЈf {t /, 7 20 30 32

Fig

72

73

ON O

CO VI

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to small-sized agricultural machinery.

The aim of the invention is to reduce the specific pressure on the soil and increase the efficiency of the use of the muscular energy of the driver.

FIG. 1 shows mini tractors with a muscular drive; in fig. 2 - the same, with fixed devices for processing the native stripes of agricultural crops, top view; Fig. 3 is a kinematic diagram of the connection of the rear engine and the front wheel at maximum angles of rotation; in fig. 4 is a view I in FIG. one; in fig.

5 is a view A of FIG. four; in fig. 6 is a section BB in FIG. five; in fig. 7 is a section bb of FIG. 5; in fig. 8 - section G-Y in FIG. FIG. 9 is a section d-d in fig. eight; in fig. 10 shows section EE of FIG. eight; FIG. 11 shows a mini tractor with fixed devices for processing between the rows of regular agricultural crops, top view; in fig. 12 is a kinematic diagram of the muscular drive of the driver’s legs, side view; in fig. 13 - the same, top view; FIG. 14 is a section of an Ж-Ж in FIG. 1 and 18; in fig. 15 is a section L-I in FIG. 1 and 18; in fig. 16 — node II in FIG. one; in fig. 17 is a section view of the CK in FIG. sixteen; in fig. 18 - minitractor with an internal combustion engine T-200; in fig. 19 - the same, with fixed devices for processing the native stripes of agricultural crops, top view; in fig. 20 is a section LL in FIG. 17; in fig. 21 - L-shaped lever with a vertical pin, front view; in fig. 22 - the same, side view; in fig. 23 - the same, top view; in fig. 24 is a section M-M in FIG. 1 and 18; in fig. 25 is a section HH in FIG. 1 and 18; in fig. 26 is a section through the PP in FIG. 25; in fig. 27 is a P-P slit in FIG. 25; in fig. 28 is a C-C section in FIG. 27; in fig. 29 — node III in FIG. 27; in fig. 30 is a node IV in FIG. 6; in fig. 31 - kinematic diagram of the muscular drive of the driver's hand, axonometric; in fig. 32 is a kinematic diagram of a belt accumulator of torques of a muscular drive of a driver’s hands.

The mini tractor contains a frame 1 with a drive 2 fixed on it and kinematically interconnected propulsion 3 and front wheel 4 (Figs. 1, 2, 18 and 19).

The frame 1 is made of a composite of two parts: the top 5 (Fig. 1, 12 and 18) and the bottom

6 (FIGS. 21-23), hingedly connected to each other, with the lower part 6 made in the form of an angle lever with a vertical trunnion 7. On the sides of the angular lever 6, coaxial axles 8 are made, with rollers 10 fixed on axles 9 of these axles. , and on the axis 9 between the coaxial rear axles and between the walls of the angular lever 6 (Fig. 25) mounted lower sprocket t1

power chain transmission 12. Top sprocket 13 of power chain transmission 12 (FIG. 12) with side spherical segments 14 (FIG. 24) is hingedly mounted inside a vertical groove with a cylindrical groove

0 15 corner lever 6 on the axis 16 of the upper part 5 of the frame 1.

In the front end part 17 (Fig. 3, 14 and 15) a ring 18 is pivotally mounted, located in the eyelet 19 formed in the end part 20 of the L-shaped plug 21 of the front wheel 4 (Fig. 1, 3, 12, 15 and 18) . The lower part of the frame 1 is connected to the upper part 5 by a vertical trunnion 7 by means of a protrusion 22 of the angular lever 6 installed in the groove 23 of the upper part 5 of the frame 1 (Fig. 17 and 20), while in the protrusion 22 the ball 24 is rotatably fixed, in contact with parallel planes of the groove 23 of the upper part of the frame 1. A protrusion

5 22 provides for the connection of the lower 6 and upper 5 parts of the frame 1 and their mutual rotation in the horizontal plane.

Drive 2 (Figs. 1, 2 and 12) consists of a muscular drive 25 feet, mounted on frame 1 (Fig. 1, 2 or 12), and a muscular drive 26 of hands mounted on the steering wheel in the upper part of the steering column (Fig. 1.4 and 5).

The actuator 2 contains a coil spring5 27 (Fig. 12) with a stopper (not shown) installed, the inner end of which is kinematically connected in series with a system of chain and chain gears 28-31 with a muscular drive of 25 legs, which has a well-known chain drive, and the coil spring is kinematically connected with the sequential system of chain drives 32-34 and 12 with the driving roller 10 of the driving gear 3 (Fig. 1, 2, 12 and 25),

5 The driver’s muscular drive 26 of the driver (Figs. 1 and 4-7) is made up of holders 36 mounted on the ends of the body 35 of the roll and can be rotated on the bearings of the sleeves 37 with a diametrical web 38 in each. An asterisk 39 of the chain transmission 40 is fixed outside the hub, kinematically connected with the neighboring chain transmission 41 via sprockets 42 through 5 freely mounted on the shaft, spring-loaded and having the ability to reciprocate along the shaft axis to move with the teeth at the end face of the washer 43. 40 is secured with a ratchet ring 45, which interacts with a response driven spring-loaded ratchet ring 46 coaxially mounted with an asterisk 47 of the adjacent chain transmission 41, with the ring 46 being mounted of the shaft through the slot with the possibility of lateral rotation and is kinematically associated with the sprocket 47 freely mounted on the shaft by means of a spring-loaded ratchet washer 48, similar to a ratchet washer 43 (FIG. 6),

Coaxially with an asterisk 47 of the left side of the steering wheel (Fig. 7) of the chain transmission 41 mounted on the shaft 49, the chain transmission 50 is mounted, and coaxially with the asterisk 47 of the right side of the chain of the chain transmission 41 mounted on the shaft 51, the chain transmission 52 is mounted. gears 50 and 52 are mounted on a shaft 53, on which a belt battery 54 of torque is mounted from both rotating sleeves 37 (left and right) of the steering wheel. The torque is transmitted from the belt accumulator 54 through the chain 55 and 56 transmissions (Fig. 4) to the chain drive 30 (Fig. 12), while the sprockets of the chain gears 30 and 56 are mounted on the shaft 57 (Fig. 1 and 12).

In the driven ratchet ring 36, lateral spherical thickening 58 (Fig. 9) at the locations of the splines is formed, which are in contact with diametrically opposed spherical counterbores 59, while the angle of rotation of the driven ratchet ring 46 when exposed to the lateral spring 60 is limited by a side stop 61 (FIG. .7).

The teeth x 62 and 63 of the lead 45 and slave 46 of the ratchet rings are made from the sides with inclined brackets, moreover, in the ring 45 - on the left, and in the ring 46 - on the right (Figures 8 and 10).

Actuator 2 in combination with an internal combustion engine, such as the T-200, contains in addition to the T-200 two more chain drives 64 and 12, while the chain gear 12 is kinematically connected with the rollers 10 of the drive 3 (Figures 18, 19 and 25).

When the curvilinear motion of the mini-tractor (Fig. 3), the power chain transmission 12 has a slight lengthening of the chain, since the lower sprocket 11 rotates relative to the upper sprocket 13. Thus. for a chain drive having a long sprocket diameter of about 100 mm, an intercenter distance of 300 m and a turning angle of about 12 °, the chain elongation will be of the order of 0.4 mm, which does not affect the driving performance of the drive 3.

The angular lever 6 is made stamped from sheet material (FIG. 25).

In the propulsion unit 3, the chains 65 (FIGS. 25, 27, and 28) are made of plastic with a reinforced mesh and allow bending with a radius of 100 mm.

The steering 66, both in a muscular-driven minitraktor and in a minitractor with an internal combustion engine, is kinematically connected with the front wheel 4 and the L-shaped plug 21 by means of a known chain drive 67 (Fig. 1 and 18). In the upper part 6 of the frame 1 from the side

The 0 sides are mounted on the tubes 68, the support wheels 69, spaced apart from each other by a double step of a variety of different agricultural crops (Fig. 2 and 19).

5 A device for fastening soil-cultivating tools (shown in figs 1, 2, 11, 18 and 19) is mounted in the middle of frame 1 a cantilever 70, with which a vertical rectangular bar 73 is hinged on transverse rods 71 and 72 respectively. On a bar 73 the lower end is fixed sequentially from top to bottom two frames 74 and 75.

The upper frame 74 is sectional (straight angle with partitions) with a stamped I-beam in each section.

In the bottom frame 75 along the edges on one side on transverse vertical axes x

0 are articulated end portions of the one-dimensional plates 76, which form diagonally in plan along a straight line sequence (Figs. 2, 11 and 19). In the extreme frames 74 are fixed the holder 77, which are mounted

5, devices 78 and 79. wherein device 78 is right-handed and device 79 is left-handed and intended for weeding, loosening and hilling the natural strips of various large-scale agricultural land.

0 cultures both separately and at the same time, with the frames 75 spaced apart from one another by a single step.

In the holders 77 (Fig. 11), located in the middle and along the edges separated from the middle by a fifth step, devices 80 and 81 are mounted, the device 80 is right-handed, and the device 81 is left-handed and intended for weeding, loosening and hilling the middle

0 interdisciplinary stripes of various agricultural crops.

Tractor works as follows.

To carry out, for example, weeding,

5 loosening and hilling various variety agricultural crops 82 (figs. 2, 11, and 19) in clamps 77 installed above row crops, it is necessary to fasten various devices: for example, devices 78 and 79 for processing natural stripes

(Fig. 2 and 19) or for processing the middle interstitial strips up to a pitch of 400 mm. With a greater pitch of the radius, it is necessary to use devices 80 and 81 (wider) when processing the middle inter-row strips, starting with a pitch of radius greater than 400 mm.

Before loosening, weeding and hilling, it is necessary to set the spacing of the clips 77 and support wheels 69 when processing the surrounding strips (Figs. 2 and 18) to the spacing of the regular culture (m.). When processing the middle inter-row lanes (Fig. 11), this step is set to two steps of random crop (2t), while the support wheels 69 are divorced when processing both the natural and middle row spacing in two steps random crops (2t), with the pitch variation range from 300 to 700 mm depending on the row agricultural crop.

Before setting the pitch of the yoke 77, it is necessary to raise the devices 78 and 79 or 80 and 81 by turning the lever 83 (clockwise) with the lever 83 (FIGS. 1 and 18).

With the drive 2 (Fig. 1 and 2) running, the torque from the coil spring 27 (Fig. 12) is transmitted through successive chain drives 32-34 and 12 to propulsion 3 and the chain drive sprocket 11 turns the drive rollers 10 (Fig. 18) .

Torque transmission from muscular leg drives 25 and arms 26 to chain drive 30 (Figs. 1 and 12) is transmitted through torque band accumulators, in each of which the muscular drive torque transmission, for example, legs is produced through spring-loaded ratchet rings, interacting with their lobes, with counter slots attached to the shaft (FIG. 32) of the sleeve.

Tape accumulators for hands 54 (fig. 1), legs 84 (fig. 13) and a tape accumulator, summing up the torques from the hands of the feet, are similar in design to the well-known tape accumulator of torques.

The returning turning movements of the driver’s hands are necessary for creating additional torques. Since the pens with a variety of agricultural crops in the direction

their treatments have sides with slight curvatures, the driver can simultaneously reciprocate rotational movements and use a mini tractor with these hands, and when leaving the headland, when it is necessary to make a significant turn, the driver is already reciprocating turning movements do not make hand cysts

can.

When used as an actuator 2 for an internal combustion engine, torque is transmitted from it through chain drives 64 and 12 to propulsion 3.

The swiveling devices (figs. 3 and 14 - 17) of the wheel 4 and the driver 3 provide the necessary curvature of the track of the minitractor.

The proposed mini-tractor provides agrotechnical processing of two rows

various diverse agricultural crops.

Claims (1)

Invention Formula 1, Tractor containing articulated frame, drive with transmission, steering gear, wheel travel, device for fastening soil tillage implements, characterized in that reducing soil pressure and improving the use of muscular energy of the driver, the articulated frame is formed by the upper and lower parts, while the lower part is made in the form of an L-shaped lever, the horizontal portion of which is equipped with a propeller containing driven and leading rollers connected by an endless non-metallic chain, and the drive the roller is made of a chain, its lower sprocket is installed between the leading rollers and coaxially with them, and the upper is placed in the upper part of the cylindrical groove formed inside the vertical plot of the l-shaped lever, and mounted on an axis mounted on top of the frame. 2, Tractor pop. 1, characterized in that the steering gear is mounted on the steering column inside the steering wheel housing and made in the form of clips placed at the ends of the roll body and turning on bearing bushings having diametrically jumpers, the clips being kinematically connected by chain transmission to one of the wheels wheeling. 52 50 5if 26 66 79 78 75 Figg Fig.z 3 3S & View, 41 5052 FIG. five W 4i | 4j S3 $ 15 30 51 SB "1Q 8 76 FIG. eleven ft 2 W 1 ;; Fie.12 rs X - " Lj 22 24 23 FIG. 19 riff y j ji} tshshshshshRA to FIG. 20 77 Fig.21 70 FIG. 2 2 / T ... ... wh - & EFbJb: FIG. 23 f ± Mm 16 13 P } C Figsch //////  Yu d g.27 37 FIG. 28 FIG. thirty nn FIG. 26 FIG. 25 FIG. 29 I P5 "U €