RU219676U1 - TEETH HARROW WITH VARIABLE WORKING WIDTH - Google Patents

Abstract

The utility model relates to agricultural engineering and can be used for soil harrowing. The technical result of the utility model is to increase the versatility of use. The technical result is achieved due to the fact that the teeth have a conical sharpening, are inserted into the holes of the frame bars with the possibility of rotation around the longitudinal axis, are fixed from displacement in the longitudinal direction with a nut and a lock nut and serve as vertical hinges for the frame bars, on the extreme right and left teeth of the harrow on top The frame is hinged and secured with a nut and a lock nut at an angle to the direction of motion. A tooth harrow with a variable working width, containing a frame with rows of teeth fixed on it, the teeth having a conical sharpening, inserted into the holes of the frame slats with the possibility of rotation around the longitudinal axis, fixed from displacement in the longitudinal direction by a nut and a lock nut and serve as vertical hinges for the frame slats , on the extreme right and left teeth of the harrow over the frame, a coupler is hinged and fixed with a nut and a lock nut at an angle to the direction of movement, consisting of two corners with matching holes, fastened with two bolts with a nut and a lock washer.

Description

The utility model relates to agricultural engineering and can be used for soil harrowing, including on ridges of various widths.

Known tooth harrow [Author's certificate SU patent No. 715040, IPC class. А01В 19/02, А01В 23/02, 1980], including longitudinal and transverse strips, teeth attached to the strips and screw ties connecting the longitudinal and transverse strips to each other.

The disadvantage of this harrow is the impossibility of changing the working width to work as part of combined tillage units of different working widths.

The closest analogue to the claimed is a harrow [Author's certificate SU patent No. 1806491, IPC class. А01В 25/00, А01В 19/02, 1993], containing a frame of strips with rows of teeth fixed on it and a flexible cutting element installed with the possibility of tension at an angle to the direction of movement of the tool.

The disadvantage of this design is the impossibility of changing the working width for working as part of combined tillage units of various working widths and for harrowing ridges of various widths.

The technical result of the utility model is to increase the versatility of use.

The technical result is achieved due to the fact that the teeth have a conical sharpening, are inserted into the holes of the frame bars with the possibility of rotation around the longitudinal axis, are fixed from displacement in the longitudinal direction with a nut and a lock nut and serve as vertical hinges for the frame bars, on the extreme right and left teeth of the harrow on top The frame is hinged and secured with a nut and a lock nut at an angle to the direction of motion.

The specified set of essential features ensures the appearance of the inventive tooth harrow with a variable width of capture of new properties that are different from the prototype.

Thus, the claimed features of the utility model meet the criterion of "novelty".

In FIG. 1 shows a diagram of a tooth harrow with a variable working width, top view.

A tooth harrow with a variable working width, containing a frame 1 with rows of teeth 2 fixed to it, and the teeth have a conical sharpening, are inserted into the holes of the frame bars with the possibility of rotation around the longitudinal axis, are fixed from displacement in the longitudinal direction by a nut and a lock nut and serve as vertical hinges for frame slats, on the extreme right and left teeth 4, 9 of the harrow over the frame is hinged and fixed with a nut and a lock nut at an angle to the direction of movement; .

Tooth harrow with variable working width is attached to the traction device with two leashes, for rings 5 and works on the principle of known tooth harrows.

The combination of the declared distinguishing features allows, by changing the length of the tie, to change the width of the tooth harrow for various uses: for completing combined tillage units of various widths, for harrowing ridges of various widths and row spacing of berry bushes, for joint work as part of tillage and sowing complexes, etc. .d., which increases the versatility of use.

Information sources

1. Author's certificate SU patent No. 715040, IPC class. A01B 19/02, A01B 23/02, 1980.

2. Author's certificate SU patent No. 1806491, IPC class. A01B 25/00, A01B 19/02, 1993.

Claims (1)

A tooth harrow with a variable working width, containing a frame with rows of teeth fixed on it, characterized in that the teeth have a conical sharpening, are inserted into the holes of the frame bars with the possibility of rotation around the longitudinal axis, are fixed from displacement in the longitudinal direction by a nut and a lock nut and serve as vertical hinges for the frame slats, on the extreme right and left teeth of the harrow over the frame, a coupler is hinged and fixed with a nut and a lock nut at an angle to the direction of movement, consisting of two corners with matching holes, fastened with two bolts with a nut and a lock washer.