RU2709849C1 - Continuous action unit forming cuvette and base of motor road - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to construction of motor roads. Proposed unit comprises central frame, right frame, left frame, cantilever, rollers, rotary frame, lower frame, two endless chains, buckets, central roller, right roller, conveyor energy device and ripper power device. Right frame and left frame are hinged to conveyor medium frame. Console is pivoted to left frame. Rollers are installed on middle frame, right frame, left frame and cantilever. One part of rotary frame is pivotally connected to middle frame from below. Other part of the rotary frame is articulated with the end of the lower frame. Driving sprocket is arranged on lower frame. Two endless chains encircle rollers and drive sprocket. Buckets are attached to chains. Conveyor chain drive is combined: from the drive shaft of the conveyor drive by means of the drive sprocket and from the lifting hydraulic motor. Rollers are pivoted to middle frame. Central roller is installed in the bearings of the roller on bearings. Right roller is similarly attached to rotary frame. Middle frame is connected to energy device of conveyor. Conveyor energy device includes power take-off box, hydraulic system tank, hydraulic pump of right roller control, hydraulic accumulator of central roller control, chain tension hydraulic accumulator. Energy device of ripper is arranged similar to energy device of conveyor. On its front hinge there is a knife. Ripper frame is attached to its rear suspension. It is connected through a ball hinge to the middle frame.

EFFECT: formation of cuvette and half of automobile road bed in one pass.

1 cl, 10 dwg

Description

The invention relates to devices in the field of road construction.

Ditches and the bases of highways are formed using mainly cyclic machines: bulldozers, excavators, scrapers. Their common disadvantage is low productivity.

A device for leveling foundations and road surfaces (autosw. SU No. 1145069, A Е01С 23/09, 11/16/1983), comprising a base chassis with a cutter placed under it and a flap of an arc-shaped shape in section, pivotally mounted to the cutter hinge frame, hydraulic lift cylinders with control system. The disadvantage of the design is the lack of a device for loading the cut layer in a vehicle.

A device for excavation (JP 3460029, 2003-10-27, B2) is known, attached to a tractor and containing a chain bucket excavation mechanism, a transverse belt conveyor, their drive mechanisms, a lifting frame, a lifting mechanism, a supporting frame, a moving mechanism and a mechanism rotation. It is designed to remove wet soil from the channel and transport it to the side with a transverse belt conveyor. In this case, the chain bucket excavation mechanism can be moved vertically by raising or lowering the lifting frame by means of a lifting mechanism, horizontally, moving the support frame relative to the lifting frame by means of a moving mechanism, and rotated about a vertical axis by means of a rotation mechanism, that is, it has three degrees of freedom so the same as the working bodies of the proposed design.

The disadvantage of this device is its limited use. The rectangular profile of the channel created by him, without slopes, makes it difficult to use it to form road cuvettes. In addition, the design does not have a mechanism for leveling the extracted soil on the surface; loading of the extracted soil into the vehicle is not provided.

The analysis of patent and scientific and technical literature did not allow us to identify the closest analogue from the existing level of technology either by the totality of essential features or by the technical result achieved.

The objective of the invention is the creation of a continuous unit, forming a ditch and half the base of the road in one pass.

The proposed unit of continuous operation, forming a cuvette and the base of the road, containing working bodies having three degrees of freedom, mechanisms of their drive, excavation mechanism, frame structures, conveyor device, is structurally made in such a way that

- the right frame and the left frame are pivotally attached to the middle conveyor frame;

- the position of the right frame relative to the middle frame is controlled by two hydraulic cylinders for chain tension;

- the position of the left frame relative to the middle frame is controlled by two hydraulic cylinders for controlling the left frame;

- a console is pivotally attached to the left frame;

- the position of the console relative to the left frame is controlled by two telescopic hydraulic cylinders;

- rollers are installed on the middle frame, the right frame, the left frame and the console; the slides are also welded to the middle frame;

- one part of the swing frame is pivotally attached to the middle frame from below;

- the other part of the rotary frame is pivotally attached to the end of the lower frame, and between these parts there are hydraulic cylinders for preloading the rollers;

- the other end of the lower frame is connected to a vertical guide bar, which can vertically slide along the middle frame;

- the position of the lower frame is controlled by hydraulic cylinders for controlling the lower frame connected to the middle frame so that the lower and middle frames form a parallelogram mechanism;

- a drive sprocket is installed on the lower frame;

- two endless chains encircle the rollers and the drive sprocket;

- buckets are attached to the chains, with the possibility of a limited rotation when moving along the lower horizontal branch of the conveyor;

- the conveyor chain drive is combined: from the drive shaft of the conveyor drive by means of a drive sprocket and from a lift motor;

- guides are also welded to the middle frame with sliders placed inside them and having sliders rollers at the ends;

- on the middle frame there are two hydraulic motors that control the position of the sliders relative to the guides;

- at the top on the middle frame there is a hopper for grass seeds with a metering device;

- an air pipe is connected to the metering device on the one hand, and the seed tube on the other;

- the other end of the vas deferens is connected to the seed distributor with nozzles;

- below the middle frame pivotally connected the leads of the roller, in which the central roller is mounted on the bearings;

- the leads of the roller are also connected to the middle frame by means of hydraulic cylinders for controlling the central roller;

- the right roller is likewise attached to the swing frame;

- the middle frame is connected to the energy device of the conveyor by means of the front linkage of the energy device of the conveyor;

- the energy device of the conveyor rests on the rollers through the leads, the case of the energy device of the conveyor is also connected to the leads through the hydraulic cylinders of the auto-horizontal;

- the hydraulic cylinders of the auto-horizontal are connected to the hydraulic equipment of the auto-horizontal attached to the body of the energy device of the conveyor;

- a power take-off box is installed on the energy device of the conveyor;

- the torque from the power take-off is supplied to the drive shaft of the conveyor drive in front, to the fan at the rear, and an air duct is connected to it;

- a hydraulic system tank, a hydropneumatic accumulator for controlling the right roller, a hydropneumatic accumulator for controlling the central roller, and a hydropneumatic accumulator for chain tension are also installed on the body of the energy device of the conveyor;

- the hydropneumatic accumulator for controlling the right roller and the hydropneumatic accumulator for controlling the central roller are connected, respectively, with the hydraulic cylinders for controlling the central roller and the hydraulic cylinders for controlling the right roller;

the pneumatic accumulator of the chain tension communicates with both the hydraulic cylinders of the chain tension and the hydraulic cylinders of the roller preload;

- the energy device of the cultivator is arranged similarly to the energy device of the conveyor, but a knife is installed on its front hitch, the frame of the cultivator is attached to the rear hitch;

- the frame of the left auger is attached to the frame of the cultivator, a safety shield;

- between the frame of the cultivator and the frame of the left auger is installed the left auger, the drive of the left auger with a bearing assembly and a centrifugal safety clutch;

- in the bearing unit is a shaft with a spiral knife at one end;

- a disk is welded to the shaft, holders are attached to it;

- end knives and circumferential knives welded together, stepwise connected to the holders, while the circumferential knives have a spatial bend;

- a bearing assembly with a centrifugal safety clutch and a drive of the right screw is connected to the frame of the cultivator;

- an easily removable right auger is installed on the drive of the right auger;

- the torque from the power take-off box of the energy device of the cultivator enters through the driveshaft drive shaft of the cultivator and the chain drive to the shaft;

- the frame of the ripper through a ball joint is connected to a movable plate;

- the movable plate control cylinders of the movable plate can be moved vertically along a fixed plate welded to the middle frame;

- on the casing of the energy device of the cultivator, hydraulic equipment for the auto-ripper of the cultivator, a tank of the hydraulic system of the cultivator, a hydropneumatic accumulator for controlling the knife, a hydropneumatic accumulator for controlling the ripper and a backup hydropneumatic accumulator are also installed;

- the hydraulic control accumulator of the knife control is connected with the hydraulic cylinders of the front linkage control, and the hydraulic pneumatic accumulator of the ripper control is connected with the hydraulic cylinders of the rear linkage control.

According to the present invention, the task is solved by the fact that the continuous unit of the construction described above, with a knife, an active cultivator and two screws forms a ditch, a conveyor with buckets fixed on endless chains, cleans the slopes of the ditch, levels the ground to form the base of the road, compacts it with a roller, and the inside the slope of the cell reinforces by sowing herbs. At the same time, the depth of the cuvette and the height of the base of the road can be adjusted depending on the topography, and the degree of compaction of the soil at the base of the road can be adjusted depending on its structure. Using the proposed unit can improve the quality of roads under construction, reduce the cost of their construction.

The invention is illustrated by drawings:

In FIG. 1 shows a diagram of the unit, a top view;

in FIG. 2 - view A;

in FIG. 3 view B;

in FIG. 4 - view E;

in FIG. 5 - view B (screws and their drives are not shown);

in FIG. 6 - view of G;

in FIG. 7 - view D (lower frame in the upper position);

in FIG. 8 - view D (lower frame in the lower position);

in FIG. 9 - view E;

in FIG. 10 - arrangement of sensors.

To the middle frame 4 of the conveyor (Fig. 1, 7), the right frame 64 and the left frame 61 are pivotally connected. The position of the right frame relative to the middle frame is controlled by two hydraulic cylinders of chain tension 23. The position of the left frame relative to the middle frame is controlled by two control cylinders of the left frame 3. K the console 60 is pivotally attached to the left frame, the position of which relative to the left frame is controlled by two telescopic hydraulic cylinders 2. The rollers 59 are installed on the middle frame, the right frame, the left frame and the console (Fig. 7), the slides are also welded to the middle frame 73 shield 71. One part of the swing frame 67 is pivotally attached to the middle frame from below. Another part of the swing frame is pivotally attached to the end of the lower frame 70, and between these parts hydraulic cylinders for preloading the rollers 68 are installed. The other end of the lower frame is connected to the vertical guide rail 76 (Fig. 8), which can vertically slide along the middle frame. The position of the lower frame is controlled by the hydraulic cylinders for controlling the lower frame 69 (Fig. 7). A drive sprocket 77 is installed on the lower frame (Fig. 8). Two endless chains 1 (Fig. 1) encircle the rollers and the drive sprocket. Buckets are attached to the chains 5. The chain drive from the drive shaft of the conveyor drive 37 by means of the drive sprocket and from the lift motor 38. Guide rails 6 are also welded to the middle frame with the sliders 75 inside (Fig. 8) having the sliders roller 74 at the ends. two hydraulic motors 7 are installed in the middle frame (Figs. 1, 7), which control the position of the sliders relative to the guides. At the top on the middle frame is a hopper 27 for grass seeds with a metering device 62 (Fig. 7). On the one hand, an air pipe 36 is connected to the metering device, and on the other hand, the vas deferens 63. The other end of the vas deferens is connected to the seed distributor 24 (Figs. 1, 7) with nozzles 26. Leads of the roller 78 are pivotally attached to the middle frame (Fig. 9), which has a central roller 28 (Fig. 1, 9). The leads of the roller are also connected to the middle frame by means of hydraulic cylinders for controlling the central roller 79 (Fig. 9). The right roller 25 (Fig. 1) is likewise connected to the swing frame. The middle frame is connected to the energy device of the conveyor 33 (Fig. 1, 6) through the front linkage of the energy device of the conveyor 32, which is controlled by the hydraulic cylinder for controlling the front linkage 56. The energy device of the conveyor is supported by rollers 53 (Fig. 5, 6) through the leads 54 and hydraulic cylinders auto horizontal 55. Hydraulic cylinders auto horizontal associated with hydraulic equipment auto horizontal 35 (Fig. 1, 6), attached to the housing of the energy device of the conveyor. A power take-off box 52 is installed on the conveyor’s energy device (Fig. 6), the torque from which comes from the front through the drive shaft of the conveyor, and from the back to the fan 58, to which the duct is connected. A hydraulic system tank 34 (Figs. 1, 6), a hydraulic accumulator for controlling the right roller 29 (Fig. 1), a hydropneumatic accumulator for controlling the central roller 30, a hydropneumatic accumulator for tensioning the chains 31 are also installed on the body of the energy device of the conveyor. Hydropneumatic accumulator for controlling the right roller and a hydraulic accumulator for controlling the central roller , respectively, with the hydraulic cylinders for controlling the rollers, and the pneumatic accumulator of the chain tension communicates with both the hydraulic cylinders of the chain tension and with the hydraulic cylinders under roller compression. The energy device of the cultivator 17 (Fig. 1, 5) is arranged similarly to the energy device of the conveyor, but a knife 16 is installed on its front hinge 15, and the frame of the cultivator 9 is attached to the rear hinge 12 (Fig. 1, 2) (Fig. 1, 5). To the frame of the cultivator is attached the frame of the left screw 8 (Fig. 1, 2), a safety shield 41 (Fig. 2). Between the frame of the cultivator and the frame of the left auger there is a left auger 39, a drive of the left auger 42 with a bearing assembly 47 (Fig. 3, 5) and a centrifugal safety clutch 48. In the bearing assembly there is a shaft 45 (Fig. 3) with a spiral knife 44 on one the end. A disk 51 is welded to the shaft (Fig. 4), holders 50 are attached to it. End knives 43 (Fig. 3) and peripheral knives 46 (Figs. 3, 4) with welded blades 49 are welded together in steps. A bearing assembly with a centrifugal safety clutch and a drive of the right screw 40 is also connected to the frame of the cultivator (Fig. 2). An easily removable right auger 21 is installed on the drive of the right auger (Fig. 1, 2). The turns of the spirals of the left auger and the right auger are equipped with teeth. The torque from the power take-off box of the energy device of the cultivator enters through the driveshaft drive shaft of the cultivator 11 (Fig. 1, 2, 5) and the chain gear 10 to the shaft. The frame of the cultivator is connected through a ball joint 22 (Fig. 1) to the movable plate 66 (Fig. 7), and the hydraulic plate control cylinders of the movable plate can vertically move the movable plate along the fixed plate 65 welded to the middle frame. The hydraulic device of the auto-horizontal of the cultivator 14 (Fig. 1, 5), the hydraulic tank of the cultivator 13, the hydropneumatic accumulator for controlling the knife 18 (Fig. 1), the hydropneumatic accumulator for controlling the ripper 19 and the backup hydropneumatic accumulator for controlling the hydraulic control valve 20 are connected to the hydropneumatic accumulator the front linkage, a hydropneumatic accumulator for controlling the cultivator - with hydraulic cylinders for controlling the rear linkage 57 (Fig. 5). To automatically stop the unit when overloading its elements, sensors 80 are installed (Fig. 10).

The unit is serviced by two operators, one of which is located in the energy device of the cultivator, and the other in the energy device of the conveyor. The operator in the energy device of the cultivator includes a propeller shaft of the drive of the cultivator (Fig. 5) and transmission. Moving the energy device of the cultivator forward, it gradually lowers: the knife from position II to position I, the frame of the cultivator - from position IV (only the rear linkage, axis and shaft end are shown) to position III, to a predetermined depth of excavation to create a cuvette. The knife cuts the soil along the axis of the shaft of the cultivator. The depth of the knife can be changed by moving it and fixing it in the holes “O”. The position of the shaft axis in depth is changed by the rear linkage. Since the levers of the front linkage and the rear linkage represent a parallelogram, the knife or shaft axis when lifting or lowering the front linkage or the shaft axis when lifting or lowering the rear linkage moves in parallel.

If the cuvette is deep, the spiral knife is screwed into the ground, end knives and circular knives cut it. Since the circumferential knives have a spatial bend (Fig. 4), they rake the crushed soil inward. The left auger carries it to the dump (Fig. 2). At the same time, the left auger cuts and removes soil from the “L” space to the dump, previously forming the internal slope of the cell. The right auger cuts the soil from the “P” space, previously forming the external slope of the cuvette, and shifts the crushed soil into the cuvette. If the cuvette is shallow, only end knives and circumferential knives cut the soil. When the frame of the cultivator plunges to a predetermined depth, the machine operator in the energy device of the cultivator stops the energy device of the cultivator.

The operator in the energy device of the conveyor (Fig. 1) moves the energy device of the conveyor so that the conveyor is installed perpendicular to the axis of the future road, moves the movable plate to connect the unit. Moving the lower frame (Fig. 7), he establishes the height of the filling of the soil removed from the cuvette to the base of the road, or excludes this filling (Fig. 8). When moving the lower frame, the operator, by means of a hydraulic motor, adjusts the position of the slide roller so that the rotary frame is set to a position that cleans the internal slope of the cell.

After connecting the unit, the operator turns on the conveyor drive and fan. To ensure mutual movement during operation of the energy device of the cultivator and the energy device of the conveyor vertically, the hydraulic cylinders for controlling the movable plate are switched to the "floating" position. The energy device of the cultivator and the energy device of the conveyor begin synchronous movement (Fig. 1). Buckets scoop up the soil from the cell (Fig. 7), cleaning its outer wall, bottom and inner wall. After the bucket goes off the slide roller, it becomes possible to turn it limitedly. When moving along the lower horizontal branch of the conveyor, the buckets level the added soil, moving it from the cuvette to the center of the future road. If there is an excess of soil, or its structure does not meet the requirements for the composition of the soil of the base of the road, this soil is loaded with the vehicle "M". When approaching the bucket to the drive sprocket, it turns into a fixed position. The shield prevents the soil from falling out of the bucket when it is rotated on the drive sprocket. A lift motor moves buckets with soil up. Buckets with soil overturn when passing through the console. Soil spills out of them into the vehicle "M". The central roller (Fig. 1) compacts the soil at the base of the road. Before starting work, grass seeds are poured into the hopper. The fan pumps air into the air duct. A stream of air picks up seeds from the metering device, through the seed tube delivers them to the seed distributor, and from there through nozzles to the surface of the internal and partially external slope of the cell. The right skating rink rolls the internal slope of the cell with grass seeds to strengthen the slope.

During operation, the operator in the energy device of the conveyor controls:

- the height of the soil refill at the base of the road by changing the height of the conveyor;

- the angle of the transverse slope of the road base to the horizontal manually, or including the auto horizontal;

- the degree of compaction of the base of the road by changing the pressure in the hydropneumatic accumulator for controlling the central roller;

- the degree of compaction of the internal slope of the cell by changing the pressure in the hydropneumatic accumulator control the right roller;

- the quality of the cleaning of the external and internal slope of the cell by changing the pressure in the hydropneumatic accumulator of chain tension; if necessary, preload hydraulic cylinders can be connected to a backup hydro-pneumatic accumulator of the energy device of the cultivator;

- filling the vehicle by adjusting the position of the console.

When the auto horizontal is turned on, the case of the energy device of the conveyor and the middle frame of the conveyor will be in a strictly horizontal position. When the tracks of the energy device of the conveyor are hit by microroughnesses, the hydraulic equipment of the auto-horizontal (Fig. 6) delivers the working fluid to the necessary hydraulic cylinders of the auto-horizontal. They act on leashes, and leashes on rollers, changing their position so that the body of the energy device of the conveyor remains in a strictly horizontal position. If the surface topography is more complex, the operator sets the necessary roll on the hydraulic equipment of the auto-horizontal line, or controls the position of the body of the energy device of the conveyor, therefore, manually the middle frame of the conveyor. The operator in the energy device of the cultivator controls:

- direction of movement of the unit;

- unit speed;

- the depth of the knife;

- the depth of the cell.

The work of the auto-horizontal of the energy device of the cultivator (Fig. 5) is similar to the work of the auto-horizontal of the energy device of the conveyor. The knife is protected from damage by a shear bolt in the knife mount to the hitch and pressure limitation in the hydraulic accumulator of knife control. Since the knife is tilted in the direction of travel, when hitting an obstacle, the knife deepens from the ground, overcoming the pressure in the front linkage control cylinder, and then deepens again. When end or circular knives meet with small stones, they deviate from their path, as they are only attached to the holders and represent a system with limited movement in the radial direction. When end or circular knives meet with large stones, the centrifugal safety clutch provides protection against damage. When it is activated, the sensor (Fig. 10) sends a pulse, and the unit automatically stops. When the drive torque of the left auger is exceeded, the centrifugal safety clutch also activates. If the drive torque of the right auger is exceeded, either another centrifugal safety clutch activates, or the right auger disengages from the drive of the right auger, on which it is mounted freely. When meeting with a large stone, the frame of the cultivator with all the equipment placed on it is removed from the ground, overcoming the pressure in the rear suspension control hydraulic cylinder created in the hydropneumatic accumulator of controlling the cultivator. When the conveyor drive torque is exceeded, the safety device sensor in the power take-off is activated and the unit automatically stops.

As a result of the passage of the unit for the formation of the cuvette and the underlying layer of the road, one cuvette and half of the base of the road remain formed. For the formation of the second cuvette and the other half of the base of the road, either an oncoming passage of the unit or work with the step of the second similar unit of a mirror construction is necessary. If necessary, the energy device of the cultivator and the energy device of the conveyor with equipment installed on their hinges can be used independently.

Claims (15)

A continuous unit forming a cuvette and the base of the road, containing working bodies having three degrees of freedom, their drive mechanisms, excavation mechanism, frame structures, conveyor device, structurally designed in such a way that the right frame and the left frame are pivotally attached to the middle frame of the conveyor, while the position of the right frame relative to the middle frame is controlled by two hydraulic cylinders for chain tension, and the position of the left frame relative to the middle frame is controlled by two hydraulic cylinders for controlling the left frame, a console is pivotally attached to the left frame, the position of which relative to the left frame is controlled by two telescopic hydraulic cylinders, and rollers are installed on the middle frame, right frame, left frame and console, and the slides are also welded to the middle frame, one part of the rotary frame is pivotally attached to the middle frame from below, the other part of the rotary frame is pivotally attached to the end of the lower frame, and between these parts hydraulic cylinders for preloading the rollers are installed, the other end of the lower frame is connected to a vertical guide bar that can vertically slide along the middle frame, while the position of the lower frame is controlled by hydraulic cylinders for controlling the lower frame connected to the middle frame so that the lower and middle frames form a parallelogram mechanism, a drive sprocket is installed on the lower frame, two endless chains encircle the rollers and the drive sprocket, and buckets are attached to the chains, which have the possibility of limited rotation when moving along the lower horizontal branch of the conveyor, and the conveyor chain drive is combined: from the drive shaft of the conveyor drive through the drive sprocket and from the lift motor, guides are also welded to the middle frame with sliders placed inside them, having sliders rollers at the ends, while two hydraulic motors are installed on it that control the position of the sliders relative to the guides, in addition, on top of the middle frame there is a hopper for grass seeds with a metering device, to which an air duct is connected on one side and a seed duct on the other side, while the other end of the seed duct is connected to the seed distributor with nozzles, and the roller leads are pivotally attached to the middle frame, in which the central roller is mounted on the bearings, and the leads of the roller are also connected to the middle frame by means of hydraulic cylinders controlling the central roller, in addition, there is a right roller, which is similar to connecting n to the swing frame the middle frame is connected to the conveyor’s energy device by means of the front hitch of the conveyor’s energy device, while the conveyor’s energy device is supported by rollers through leads, the conveyor’s energy device housing is also connected to the leads through auto-horizontal cylinders, which are connected to hydraulic horizontal equipment attached to the conveyor’s energy device , a power take-off box is installed on the conveyor’s energy device, the torque from which is supplied from the front to the conveyor drive shaft, from the rear to the fan, and the duct is connected to it, in addition, a hydraulic system tank, a right-hand roller control hydro-pneumatic accumulator, a central roller control hydro-pneumatic accumulator, a chain tension hydro-pneumatic accumulator, and a right-hand roller hydraulic accumulator and a central roller hydraulic accumulator for controlling a central roller and, respectively, are connected to the hydraulic control cylinders and hydraulic cylinders roller, and the pneumatic accumulator of a tension of chains is reported as with hydro ilindrami chain tension, and bias the rollers with hydraulic cylinders, the energy device of the cultivator is similar to the energy device of the conveyor, but a knife is installed on its front hitch, and the frame of the cultivator is attached to the rear hitch, to which the frame of the left auger, a safety shield are attached, while the left auger, the drive of the left auger is installed between the frame of the cultivator and the frame of the left auger a screw with a bearing assembly and a centrifugal safety clutch, in the bearing unit there is a shaft with a spiral knife at one end, a disk is welded to the shaft, holders are attached to it, to which end knives and circumferential knives are welded together, the circumferential knives have a spatial bend, a bearing assembly with a centrifugal safety clutch and a drive of the right auger, on which an easily removable right auger is mounted, is attached to the frame of the cultivator, while the torque from the power take-off of the power device of the cultivator is supplied through the drive shaft of the cultivator of the cultivator and the chain transmission to the shaft, in addition to this frame of the cultivator through a ball joint connected to a movable plate, which the hydraulic cylinders for controlling the movable plate can vertically move along a fixed plate welded to the middle frame, hydraulic power equipment of the cultivator, a hydraulic system of the cultivator, a hydropneumatic accumulator for controlling the knife, a hydropneumatic accumulator for controlling the cultivator and a backup hydropneumatic accumulator for controlling the knife are connected to the hydraulic cylinders for controlling the front hitch for hydraulic control of the ripper.

Images