RU212910U1 - Device for automatic leveling of the layer thickness of the pressed mass of the baler - Google Patents

Abstract

The utility model relates to the field of agriculture, namely to the field of agricultural engineering, in particular to round balers for hay or straw materials.

The device for automatic leveling of the thickness of the pressed mass layer of the round baler contains a pressing device made in the form of two support rollers and a chain-slat conveyor thrown over the drive and driven shafts. The pressing chamber, the pick-up, the stacker, the drive shaft of the chain-slat conveyor are connected to the support rollers by a chain drive. The rollers, in turn, are provided with ribs located on the outer surfaces at regular intervals. The leveling rotors are connected to hydraulic motors. The cases of leveling rotors are connected to hydraulic cylinders. Their input is connected to a control device connected to a layer thickness sensor. 2 ill.

Description

The utility model relates to the field of agriculture, namely to the field of agricultural engineering, in particular to round balers for hay or straw materials.

Known roll baler, consisting of a press chamber with chain conveyors, a pick-up mechanism, a clamping grate, augers narrowing the roll, a winding apparatus. [Round baler PPR-150. Manual. Official site of the company "Klever"].

The disadvantage of this round baler is:

When picking up a roll of hay, the mass is fed unevenly across the width of the hay, because the roll initially has a cross section in the form of an isosceles trapezoid, then in the process of subsequent picking and pressing in the middle part of the roll, the highest pressing density is observed, and the smallest at the edges. The augers installed along the edges of the pick-up do not provide the necessary uniformity across the bale width.

Known roll baler containing a pressing device, made in the form of two support rollers and a chain-slat conveyor thrown over the drive and driven shafts, a press chamber, a pick-up, a stacker and a strapping device, the drive shaft of the chain-slat conveyor is connected to the support rollers by a chain transmission , which reduces the peripheral speed of the rollers compared to the peripheral speed of the conveyor, the rollers, in turn, are equipped with ribs located on the outer surfaces with equal intervals, and on the front roller the number of ribs is twice as large as on the rear, and their height is correspondingly less, at the same time, the stacker is equipped with an articulated shock-absorbing rod connected to the tine arm pivotally fixed on the crankshaft. [RU 2263440, A01F 15/07].

This round baler works in conjunction with a tractor. When the unit moves along the swath and the press mechanisms rotate with a cardan drive, the pick-up picks up the swath and feeds it into the space between the pressure grate, producing a preliminary compaction, then the stacker captures, compresses the stalk mass and pushes it through the inlet window into the pressing chamber. Under the action of the rotation of the chain-slat conveyor and the supporting rollers, the stem mass arriving as an endless tape is twisted into a roll, flattened and pressed. When the bale reaches the set density, the pressure in the hydraulic system increases and the twine start signal turns on. The tying machine feeds the twine by hydraulic motor until it is caught by the bale, then the twine is wound on the bale along the helical line with the reciprocating leash, when the bale binding is finished, the twine is pressed against the knife and cut off, at the same time the back of the bale chamber is opened and the bale is under the action of rotating rollers and rolls on a spring-loaded platform to the ground. After the roll is rolled out, the rear part of the bale chamber returns to its original position and the process is repeated in the same sequence.

The disadvantage of this device is:

1. In the process of picking up a hay swath, the shape of the swath practically does not change, but only its compaction occurs with the help of a pressure grate. With further bale formation, the uneven distribution of hay across the width of the bale is aggravated as a result of swirling the roll into a bale. The uneven distribution of hay across the width of the bale leads to a decrease in the safety of the edges of the bale as a result of insufficient pressing density.

The closest in technical essence to the claimed is a roll baler [RU 157147, A01F 15/07], in which the technical solution lies in the fact that the increase in the uniformity of the density of pressing hay in rolls is ensured by leveling the roll of hay with the same thickness across the entire width of capture picker.

The technical solution is achieved by the fact that in a roll baler containing a pressing device made in the form of two support rollers and a chain-slat conveyor thrown over the drive and driven shafts, a pressing chamber, a pick-up, a stacker and a strapping device, a chain-slat conveyor drive shaft of the conveyor is connected to the support rollers by a chain transmission, the rollers, in turn, are equipped with ribs located on the outer surfaces at regular intervals, and the pick-up is equipped with a disk leveling device installed above the pick-up drum of the pick-up, the leveling device is made in the form of two disks with fingers mounted on a hinged frame and installed with the possibility of changing the gap between the pick-up drum of the pick-up and the fingers of the disks.

In order to regulate the uniform distribution of the hay swath across the width of the pick-up, the leveling device is made in the form of two disks with inclined fingers rotating in opposite directions. The swath of hay raised by the pick-up enters the gap between the pick-up tines and the inclined tines of the rotating discs. As a result of the rotation of the discs of the leveling device, the hay is pulled apart along the width of the pick-up and compacted due to the different speeds of the hay and inclined fingers.

The disadvantages of this device are:

1. Leveling rotors are not able to move in the vertical plane depending on the current change in layer thickness, which does not allow to provide the required pressing density.

2. There is no control over the thickness of the pressed mass layer entering the pressing chamber.

The objective of the utility model is to provide prompt automatic leveling of the hay swath depending on the change in its thickness over the entire width of the pick-up.

The problem is solved due to the fact that the leveling rotors are connected to hydraulic motors, the housings of which are connected to hydraulic cylinders, the inputs of which are connected to a control device connected to a layer thickness sensor.

New significant features:

1. The drive is carried out from a hydraulic motor.

2. The spreading rotors are connected to a hydraulic motor.

3. The screed rotors with hydraulic motors are connected to hydraulic cylinders.

4. The input of hydraulic cylinders is connected to the control device.

5. The control device is connected to the layer thickness sensor.

The listed new essential features, together with the known ones, make it possible to obtain a technical result in all cases that are subject to the scope of legal protection.

The technical result consists in the fact that the leveling rotors are connected to hydraulic motors and hydraulic cylinders, the input of which is connected to a control device connected to a layer thickness sensor.

In FIG. 1 schematically shows a round baler with a device for automatically leveling the thickness of the baled material layer of the round baler.

In FIG. 2 schematically shows leveling rotors with hydraulic motors and hydraulic cylinders in top view.

The device for automatic leveling of the thickness of the compacted mass layer of the round baler contains a pressing device made in the form of two support rollers 1 and a chain-slat conveyor 2 thrown over the driving 3 and driven 4 shafts. The pressing chamber, the pick-up 5, the stacker, the drive shaft 3 of the chain-slat conveyor 2 is connected to the support rollers 1 by a chain drive. The rollers 1, in turn, are provided with ribs located on the outer surfaces at regular intervals. The leveling rotors 6 are connected to the hydraulic motors 7. The body of the leveling rotors is rigidly connected to the hydraulic cylinders 8. The inputs of the hydraulic cylinders 8 are connected to the control device 9 connected to the layer thickness sensor 10.

The round baler works as follows: when the unit moves along the swath and the press mechanisms rotate with a cardan drive, the pick-up 5 picks up the swath and feeds it into the space between the disk leveling device 6 and the top of the pick-up. The disk leveling device spreads the hay along the width of the pick-up and compacts it due to the different speeds of hay and inclined fingers, under the action of the rotation of the chain-slat conveyor 2, the disk leveling device 6 and the support rollers 1, the stalk mass is evenly distributed along the width of the capture and along the movement of the roll, twists into a roll, flattened and pressed.

Claims (1)

A device for automatic leveling of the layer thickness of the pressed mass of a round baler, containing a pressing device made in the form of two support rollers and a chain-and-slat conveyor thrown over the drive and driven shafts, a pressing chamber, a pick-up, leveling rotors, a stacker and a binding apparatus, a drive shaft the chain-slat conveyor is connected to the support rollers by a chain transmission, the rollers, in turn, are equipped with ribs located on the outer surfaces at regular intervals, characterized in that the leveling rotors are connected to hydraulic motors, the bodies of which are connected to hydraulic cylinders, and the inputs of the latter are connected to a control device, connected to a layer thickness sensor.

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