Device to facilitate control over agricultural tractor for increasing its efficiency

FIELD: transport.

SUBSTANCE: invention relates to machine building. Proposed device comprises retaining appliance arranged perpendicular to tractor motion. Said retaining device comprises central part with appliance to provide three-point joint with tractor front and rear. Said appliance to provide three-point joint with tractor front and rear comprises three jointing elements, namely, top central element and two bottom lateral elements, as well as lateral ledges arranged on both sides of central part and furnished with hooking appliance to coupling with suspended whatever equipment.

EFFECT: improved control.

12 cl, 11 dwg

 

The invention relates to a device to facilitate control trim agricultural tractor to increase its performance.

The ability of the tractor to transfer the force to the ground is determined by the coefficient of coupling of the tractor to the ground. This coefficient, which corresponds to the ratio of tractive effort to the weight of the tractor varies depending on the state of the earth and the elements of the linkage of the tractor by land, air or tracked.

Develop a thrust force is equal to the coefficient-of-friction multiplied by the weight, withstand the elements, which transmit traction couple.

Weight, withstand the propulsion elements of the tractor driving wheels or crawler tracks is the factor on which the user can influence to increase the power of thrust for a given coefficient of adhesion. Thus, there is a method of balancing the tractor with additional masses that are installed in the wheels, or the pumping of water in the wheel of the tractor.

However, the added weight causes the resistance movement, the seal land and premature wear due to the growing fatigue of mechanical components.

It is desirable to have the possibility to increase or decrease the excess weight of the tractor to quickly adapt to working conditions.

So the e regulation regarding lightened at the front of the tractor with the front lifting device, as shown, for example, in patent applications FR 2864818 or FR 2814038.

To the rear of the tractor often clings processing equipment. In this case, the direct engagement of the weight in the rear lifting device is a source of mutual opposition, even if it is only about a pull behind equipment. Furthermore, the presence of rear mass limits the observation of the rear equipment.

The objective of the invention is to develop tools to facilitate the management of the trim agricultural tractors and improve, thus, its performance, facilitating removal and installation of the balancing masses without the use of equipment for mounting on the tractor.

It is preferable that the device called for the use of equipment installed in the rear of the tractor, without compromising the main rear view and provide passage without interference of flexible hoses for supply of hydraulic equipment.

When it is installed in the front of the device should preferably be reduced longitudinal displacement of the mass in the frontal position and to eliminate interference with the lighting system.

In General, the device is designed to increase overall performance by increasing the counterbalancing masses or working equipment, which is nabbit tractor.

In accordance with the invention, the device for easier control trim agricultural tractors and increasing, thus, its performance is characterized by the fact that it comprises retaining means located perpendicular to the direction of movement of the tractor, and this holding means has a Central portion with means for coupling with the three-point lifting device on the front or rear of the tractor and on both sides of this Central part and side wings, provided with means for engagement of the mass of the load or equipment.

Preferably, the means of engagement of each side of the ledge was a means of engagement at three points, standardized with triangle hitch agricultural equipment or mass.

Means of engagement of the side wings may contain lower point of engagement, provided with a hinged clamps for holding mass or equipment, coupled with the suspension points.

The retaining means may include a transverse beam rigidly connected to vertical posts pointing downwards and distributed along the longitudinal direction of the beam, means a three-point engagement of the side tabs contain two hooks located at the bottom part of the two pillars, and one ve is JNI hook, coupled with the beam.

Preferably, the distance between the two lower hooks corresponded to a standardized distance of the lower points of engagement of the equipment, and the lower point of engagement by a lifting device located at the lower ends of the uprights from the side of the tractor.

If the device is intended for coupling with the front lifting device of the tractor, it may contain a means of engagement for forward and rearward facing at the level of the lateral protrusions, in order to ensure the engagement of the two masses on each side, one in front and the other behind the retaining means.

The retaining means may be formed by the frame containing the two side ledge shifted to the tractor, in order to reduce the offset of the masses attached to these side tabs.

The device may contain side wings held lifting means associated with the Central part of the retaining means thereby to raise the mass to pass under them hitch boom polyprolene equipment.

Means of ascent may contain at least one Jack, located transversely to control the lifting and lowering of the side wings connected to a Central base frame, at least one articulated lever.

When the means of ascent contain one Jack city is defined transversely to control the lifting and lowering of the lateral protrusions, top and bottom are provided supports for exceptions to the mass extends beyond the end point of the path.

Means of ascent may contain two jacks, one for the lever that is located transversely.

Each lateral protrusion may be associated with the Central part of the mechanism in the form of a deformable parallelogram.

The invention is further explained in the following description, which is not restrictive, with reference to the accompanying figures, in which:

Figure 1 depicts an axonometric view of the device according to the invention to facilitate the control trim agricultural tractor.

Figure 2 schematically depicts a top view of the device of figure 1, attached to the tractor at the rear.

Figure 3 schematically depicts a top view of a tractor equipped with a device according to the invention both the front and rear.

Figure 4 depicts a partial top view of a variant of the equipment of the tractor in front.

Figure 5 depicts similar to figure 4, another variant on the tractor in front.

6 depicts a top view of another embodiment of the tractor in front.

7 and 8 depict like 3 other two options on the tractor.

Figure 9 schematically depicts in frontal view option exercise device according to the invention.

Figure 10 depicts a top view of the device for Fig and

11 schematically depicts in frontal view of another variant embodiment of the invention.

Figure 1 shows the claimed device D according to the invention to facilitate the control trim agricultural tractor and, consequently, increase its productivity. The device D includes holding means And provided for cross-posting, mainly orthogonal to the direction x-X of the tractor. This holding means And contains in its Central part of the tool Into the clutch three-point lifting device placed on the front or rear of the tractor. As is known, the three-point lifting device of a tractor contains two points of the clutch provided at the ends of the racks b2, b3 (2)controlled by a lifting means, and a third upper point, equidistant to the two bottom points of the clutch, usually associated thrust b1 (figure 2) with the third point of coupling equipment.

The clutch means In the Central part contains three coupling element, namely the upper middle element 1 and the two lower lateral element 2, 3. These connecting elements can be made in the form of a forked bracket containing two separate loops with holes, between which are placed the earrings C1, C2, C3 (figure 2)placed at the ends of the arms of the lifting device of the tractor. Tie is between the ears and earrings provided by axis, passing through the respective ears and earrings.

The retaining means And is placed on either side of the Central coupling means In the lateral part of the AA, Ab, respectively provided with lateral siteplease means EA, Eb, providing for the suspension of the masses, loads or equipment and easy uncoupling when the user has no need for these tools.

Preferably, each side siteplease tool EA, Eb was the type of engagement at three points 4A, 5A, 6A and 4b, 5b and 6b, standardized with satanum triangle agricultural equipment or mass. Each tool EA, Eb allows you to lock the balancing weight or equipment associated with the three-point lifting device of a tractor. Installation and removal of the balancing mass or equipment, coupled with the resources of EA, Eb, is carried out quickly, without the use of tools. As shown hereinafter in the description, a load which is coupled with the means EA, Eb, can be tanks with liquid or, for example, portable pallets.

The top of the gear 4A, 4b are formed by the hooks located at the same distance from the lower point of engagement, respectively, 5A, 6A or 5b, 6b.

Siteplease means EA, Eb facing away from the retaining means And to the side, opposed the th tool In the clutch.

The dimensions of the lateral protrusions AA, Ab normalized to their interaction with the drawbar equipment or weight for ease of interchangeability.

Bottom siteplease elements 5A, 6A and 5b, 6b provided with a hinged clamps 7 to ensure the retention of the masses or equipment geared lower hooks 5A, 6A or 5b, 6b.

In accordance with the embodiment of figure 1 and 2, the retaining means And comprises a frame 8 formed in the cross bar, which is rigidly connected downstream vertical racks 9a, 10A and 9b, 10b, evenly distributed along the bed 8. The lower engagement elements 5A, 6A and 5b, 6b are placed on the lower ends of the vertical posts.

Preferably, the distance between the inner struts 10A and 10b correspond standardized distance between the lowest point of engagement of the equipment so that the clevis brackets were placed on the lower ends of the uprights 10A, 10b opposite SitePlayer elements 6A, 6b.

Figure 2 depicts the top view of the device D, and connected with a tractor behind the wheel Wa, Wb. The rear lifting device of the tractor is a schematic representation of a thrust b1 associated with the third highest point, and the lower rods b2, b3. The direction of movement of the tractor is schematically represented by the arrow F.

Mass MA, Mb depicted hanging with the sides of the x saralaya means Ea, Eb. Equipment can be attached instead of one or the other of the masses.

It should be noted that the Central area 11 between siteplease means Ea, Eb remains free, which allows the user to have a good view to the rear, as mass placed behind the right and left wheels, i.e. in the area where the view is restricted.

Free behind the Central zone 11 allows the engagement of the equipment to the towing system of the tractor, which can be made in the form of a hook or draw bar.

The transverse size of the frame 8 is usually chosen less than or equal to the maximum transverse size of the tractor, the width of which, therefore, does not increase.

Figure 3 depicts the top view of the tractor 12, containing the rear frame 8 is attached to the rear lifting device with two masses Ma, Mb, attached to the side ledges of the frame 8 at the rear of the tractor. The equipment attached to the rear hook of the tractor hard traction element 13. Review 14 rear driver free in the Central part.

Another bed 8' concatenated with the front lifting device 15 of the tractor via a Central means of gearing, facing backwards, i.e. to the tractor, and side saralaya funds E a, E b, facing forward. Mass M a, M b are attached in front to the frame 8', leaving the Central portion free.

P and the setting of the frame 8' on the front lifting device of a tractor, as shown in figure 3, lateral displacement of mass M a, M b, or equipment, or tanks, attached to the frame 8', allows not to block the beam's headlights.

Figure 4 depicts an implementation option, in which the bed is 8", attached to the front of the lifting device of a tractor, includes means for lateral engagement E"a, E"b, rotated to the tractor so that the balancing elements, in particular, hooked masses M a, M b, were converted to the tractor relative to the frame 8". Lateral displacement of mass M a, M b of the tractor is reduced in comparison with the solution in figure 3.

Figure 5 depicts similar to figure 4, another variant implementation, in which the bed is 8"placed in front of the tractor, contains at its lateral edges dual means of engagement, that is to the left of the tool engagement E a, forward facing, and means gearing E"a, turned back, and the right tool engagement E b, forward facing, and means gearing E"b, turned back, all these tools are gearing standard three-point type.

It becomes thus possible to increase the counterbalancing capacity with four masses, respectively, M a, M a and M b, M b. These masses can be standard, cheap to manufacture and simple to operate. When these masses are formed by the tanks, Zap lennemi liquid, in particular, water, every tank attached to the Hoop, is equipped with three standard mounting points.

6 depicts similar to figure 4, another variant implementation, in accordance with which the tank 8", placed ahead of the tractor, contains from the front side of the Central standardized three-point means of engagement of the EU in addition to SitePlayer E a and E b, turned back and placed on the side ledges. Three masses or loads can be coupled with the frame 8, namely two lateral masses M a and M b are turned back, and a mass M c, forward facing.

Fig.7 depicts similar to figure 3 an implementation option, in accordance with which the base 108', concatenated with the front lifting device of a tractor, includes two lateral protrusion 108'a, 108'b, facing backwards, i.e. to the tractor. Lateral displacement of mass M a, M b, meshed front side protrusions 108'a, 108'b on intermediate means of E a and E b, thus, limited. In the top view base 108' has a Central portion formed as an isosceles trapezoid, facing forward, while the side lugs 108'a, 108'b, turned back, connected by the inclined parts of the line with a small base.

It should be noted that in accordance with 7 base 108' has a transverse dimension greater than the overall width tracto is for to attach a larger load.

In the same way the rear frame 108 7 has a transverse dimension greater than the width of the tractor, allowing you to increase the size of the lateral protrusions and placement of larger tanks 16A, 16b, for example, filled with water. Each tank attached to the Hoop (not shown)containing three standardized saralaya point for the clutch side siteplease means EA, Eb.

Fig depicts similar to option 3 on the tractor 12, whereby the rear frame 8, and the front frame 8'are attached respectively to the rear lifting device and the front lifting device equipped with side tabs of the fork 17 for lifting pallets. Two forks 17, oriented to the rear, linked at three points with the side siteplease means Ea, Eb of the rear frame 8. Two forks, oriented in the front, linked at three points with the side siteplease means of E a and E b front frame 8'.

The tractor, thus, equipped with four forks for serving trays, which greatly improves its performance. Installation and removal of these forks 17 are fast, thanks to the standard three-point link.

To stannum 8, 8' can be attached and other equipment, in addition to forks for pallets 17, for example, Ripper.

Devices which D has increased versatility.

Fig.9 depicts in frontal view option exercise device D, intended for installation at the rear of the tractor in combination with a semi-mounted equipment. In this case, the two lower Central point of the clutch is used to engage the retaining means 18 (figure 10), provided with a rear plate 19 for articulated connection according to the arrow 20 about the vertical axis for towing equipment.

The device D comprises a frame 208, made in the form of a U-shaped inverted frame, from the side facing the tractor, provided with a means In the three-point coupling with a lifting device of a tractor, and on the opposite side of the lower side hooks 21, 22 for engagement equipment.

The side projections 23a, 23b are placed on each side of the frame 208. Each lateral protrusion 23a, 23b contains three points of engagement of the triangle so that the weight or load, coupled with a lateral lug, which was maintained with the exception of the possibility of fluctuations on this ledge.

The side projections 23a, 23b can be made in the form of U-shaped inverted frame.

In accordance with the implementation of the invention in figure 9, each lateral protrusion 23a, 23b associated with side vertical protrusion 24A, 24b of the frame 208, a deformable parallelogram 25A, 25b. Large sides of this parallelogram pinned her to nzami, on the one hand, the protrusions 24A, 24b and, on the other hand, in the vertical lugs 26a, 26b provided on the upper cross beam, the width of the frames 23a, 23b.

The lower end of the large sides of each parallelogram hinge mounted on the protrusions 24A, 24b, is rigidly connected with an upward protrusion 27A, 27b exact right angle.

At least one hydraulic cylinder 28 located transversely parallel to the top side of the frame 208, pivotally connected respectively to its cylinder and the end of its piston with the tabs 27A, 27b on the distance of the pivot point of the big bottom part.

When there is one hinge 28 between the two protrusions 27A, 27b, for simultaneous action includes the upper stop 27ah, 27bh and lower stop 27ab, 27bb, rigidly connected to the frame 208. These lugs prevent exit of the mass for the extreme points of its trajectory, otherwise symmetrical relative position of the masses or lateral forces relative to the frame can not be provided.

This disadvantage is eliminated by the presence of two hydraulic cylinders 28, each of which is provided on one arm, which is more expensive. However, the technical result is the same.

In the bottom position of the part 23a, 23b, strapontin depicted in Fig.9, the masses MA, Mb can be on earth, when the cylinder rods 28 are vioden the m position, and parallelograms 25A, 25b directed large parties down.

Powered cylinder 28 oil under pressure in order to force to return the piston rod of the Jack into the cylinder, causing the convergence of the upper ends of the projections 27A, 27b and deformation of parallelograms 25A, 25b in the direction of ascending to the position represented by the dashed lines in figure 9. During this movement of the frame 23a, 23b and masses MA, Mb are moved parallel to each other.

11 depicts an implementation option of the device in figure 9, according to which each side ledge 23'a, 23'b, instead, to be bound by a deformable parallelogram frame 208, is connected by a lever 29A, 29b, one end of which hinged on the protrusions 24A, 24b, is rigidly connected to the protrusion 27A, 27b at a right angle. Thus, the hydraulic cylinder 28 pivotally connected to the top ends of the projections 27A, 27b.

With this arrangement, when the side tabs 23'a, 23'b move from the lower position, shown in solid line, to the upper position shown by the dashed line, the masses MA, Mb change orientation and are no longer parallel to one another.

The device according to Fig.9-11 allows you to provide easy engagement and disengagement of the masses MA, Mb, placed on the ground.

Geared masses MA, Mb can be raised using a hydraulic cylinder(s) 28, which eliminates the risk of usaimage the negative effects of the boom 20 with attached equipment during maneuvering.

Top view figure 10 depicts the degree obtained maneuverability, providing passage arrows 20 polyprolene equipment under lateral mass.

1. The device for easier control trim agricultural tractor to improve its performance, containing the retaining means (A)placed perpendicular to the direction of movement of the tractor, characterized in that the retaining means (a) contains the Central part of the tool (In) three-point coupling with the front and rear of the tractor, and this tool (In) clutch contains three coupling element, namely the upper middle element (1) and two bottom side of the element (2, 3), and one and the other parties specified in the Central portion of the side ledge (AA, Ab; 23a, 23b; 23 a, 23'b), provided with a means (EA, Eb; E a, E b; E"a, E"b) gearing weight, load or equipment.

2. The device according to claim 1, characterized in that siteplease tool (EA, Eb; E a, E b; E"a, E"b) each lateral protrusion is a three-point SitePlayer tool, compatible with triangle grip agricultural equipment or mass.

3. The device according to claim 1 or 2, characterized in that siteplease funds (EA, Eb; E a, E b; E"a, E"b) lateral protrusions contain the lower siteplease point (5A, 6A; 5b, 6b), equipped with a hinged clamps (7) is provided for the I hold mass or equipment coupled with these siteplease points.

4. The device according to claim 1 or 2, characterized in that the retaining means (a) contains the crossmember(8, 8'; 108; 108'), rigidly connected to vertical posts (9a, 10A, 9b, 10b)facing down and placed along the beam, while the three-point lateral siteplease tools contain two hooks (5A, 6A; 5b, 6b), located in the lower part of the two racks, and one upper hook (4A, 4b), rigidly connected with the beam.

5. The device according to claim 4, characterized in that the distance between the inner struts (10A, 10b) corresponds to the standard distance points lower gearing equipment, at this point the lower gears (2, 3) with a lifting device of the tractor is placed in the lower part of the uprights (10A, 10b) from the side facing the tractor.

6. The device according to claim 1 or 2, characterized in that concatenates with the front lifting device of a tractor and includes means for engagement of a forward-facing (E a, E b) and backward (E"a, E"b) at the level of the lateral protrusions for engagement of the two masses (M a, M a, M b, M b) on each side, one in front and the other behind the retaining means (A).

7. The device according to claim 6, characterized in that the retaining means (A) formed by the frame (108'), containing two side ledge shifted to the tractor (108 a, 108'b) to reduce the displacement of the mass (M a, M b), geared on the side tabs.

8. The device is about to claim 1 or 2, characterized in that it comprises lateral projections (23a, 23b; 23 a, 23'b), held by the lifting means (25A, 25b; 29a, 29b; 28)associated with the Central part (208) retaining means for lifting mass to pass under them tack arrows (20) polyprolene equipment.

9. The device according to claim 8, characterized in that the lifting means include at least one hydraulic cylinder (28), placed transversely, to control the lifting or lowering of the lateral protrusions (23a, 23b; 23 a, 23'b)associated with the Central frame (208) via at least one articulated arm (25A, 25b; 29a, 29b).

10. The device according to claim 9, characterized in that the lifting means include one hydraulic cylinder (28)located transversely, to control the lifting or lowering of the lateral protrusions (23a, 23b; 23 a, 23'b), and upper (27ah, 27bh) and lower (27ab, 27bb) stops are designed to prevent out of stock at the extreme points of its trajectory.

11. The device according to claim 9, characterized in that the lifting means includes two hydraulic cylinders, one on the lever, located transversely.

12. Device according to one of PP-11, characterized in that each lateral protrusion (23a, 23b) is associated with the Central part (208) a deformable parallelogram (25A, 25b).



 

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