Device to prevent tipping of the vehicle

 

(57) Abstract:

The invention relates to the transport industry, in particular to devices for preventing the overturning of the vehicle. The device comprises a front 1 and rear 2 beams pivotally connected to the frame 3. Beams are equipped with pivoting wheels with 4.5. Beams are also connected to the frame by means of hydraulic cylinders 6,7. Hollow cylinders 6,7 through the valves 8,9,18,19 connected in such a way that prevents overturning of the vehicle. 1 Il.

The invention relates to the transport industry, in particular to devices for preventing the overturning of mobile machines.

Known supporting device for tracked vehicles with Centerpoint suspension, consisting of longitudinal beams, rigidly fixed on the frame of the machine, on the free ends of which are mounted on the hinge supports are made with the possibility of interaction in a vertical position with limiters mounted on the longitudinal beams (ed. St. N 579215, CL 66 With 23/78, 60 P 1/48, 1977).

The known reference device has the disadvantage that prevents the motor from stalling only when the vehicle is in forward motion wie fluctuations on the outside of the vehicle body.

Also known uniaxial energy unit of an articulated vehicle containing the associated one of the ends of the frame module, the front and rear beams, on the free ends of which are mounted the supporting swivel wheels (ed. St. N 1066873, CL 62 D 49/08, 1982).

A disadvantage of the known technical solution is the impossibility of its use in multi-axis and tracked vehicles during their operation in mountainous conditions.

The aim of the invention is to increase performance.

This goal is achieved by the fact that in the device to prevent tipping of the vehicle containing the associated one ends to the frame of the vehicle front and rear beams, on the free ends of which are mounted the supporting swivel wheels, according to the invention, the front and rear beams pivotally connected with the frame of the vehicle and with the same ends of the cylinders, the other ends of which are also pivotally connected to the frame, with the housings of the cylinders are rigidly connected by two four way two-position valve, a valve which is arranged to interact with regardingany hydrologically installed on the housing front cylinder first valve, connecting in the first position of the valve front cylinder mounted on the rear of the cylinder by a third valve, which in the first position of the valve connects the front cylinder to the tank, while in the second positions of the spools of the first and third valves supply lines connecting the cavity of the front cylinder to the tank, locked and cavity of the rear cylinder are connected by hydrologically installed on the rear cylinder is the fourth valve, which in the first position of the valve connects the rear cylinder is installed on the housing front cylinder second valve connecting with the first position of the spool in the rear cylinder to the tank, and second positions of the spools of the fourth and second control valves in the supply lines connecting the cavity of the rear cylinder to the tank, locked, and each line is equipped with additional lines with non-return valves, each of which is connected in parallel to one of the valves.

Comparative analysis of the prototype shows that the proposed device to prevent tipping of the transport environment and the ends of the cylinders, the other ends of which are also pivotally connected to the frame, with the housings of the cylinders are rigidly connected by two four way two-position valve, the valves are made with the possibility of interaction with adjustable tappets, pairwise rigidly connected with the cylinders, the front cavity of which is connected by hydrologically installed on the housing front cylinder first valve connecting the first position of the valve front cylinder mounted on the rear of the cylinder by a third valve, which in the first position of the valve connects the front cylinder to the tank, while in the second positions of the spools of the first and third valves supply lines connecting the cavity of the front cylinder to the tank, locked and cavity of the rear cylinder are connected by hydrologically installed on the rear cylinder is the fourth valve, which in the first position of the valve connects the rear cylinder is installed on the housing front cylinder second valve connecting the first position of the spool in the rear cylinder to the tank,their cavity in the rear of the cylinder to the tank, locked, and each hydrological equipped with additional lines with non-return valves, each of which is connected in parallel to one of the valves.

Thus, the claimed device to prevent tipping of the vehicle meets the criterion of "novelty."

The comparison of the proposed technical solutions not only prototype, but also with other technical solutions in this field of technology not found in them the features distinguishing the claimed solution to the prototype that allows to make a conclusion on the conformity of the proposed solutions to the criterion of "significant differences".

The drawing shows a diagram of a device to prevent tipping of the vehicle.

Device to prevent tipping of the vehicle includes front 1 and rear 2 beams, connected by hinges to the frame of the vehicle 3. Front beam 1 is equipped with a self-aligning wheel, and a rear 2 - self-aligning wheel 5. Beam 1 is connected by means of hinges to the frame of the vehicle by a hydraulic cylinder 6, and the beam 2 to the hydraulic cylinder 7. On the body of the hydraulic cylinder 6 is fixed to the housing of the control valves 8 and 9. Tolkat the stem 14 of the hydraulic cylinder 6. With the bracket 13 by means of a screw connection 15 is connected and the plunger 16 of the spool 17 of the valve 9. On the body of the hydraulic cylinder 7 is fixed to the housing of the control valves 18 and 19. The plunger 20 of the spool 21 of the valve 18 by means of a screw connection 22 is connected to a bracket 23, secured ha the rod 24 of the hydraulic cylinder 7. With the bracket 23 by means of a screw connection 25 is connected and the pusher 26 of the spool 27 of the valve 19. The piston cylinder chamber 6 by the line 28, and the rod cavity - line 29 is connected to the valve 8, lines 30 and 31 is connected to the valve 19 associated branching line 32 to the tank 23. Line 28 is connected to the line 30 return valve 34 with the liquid flow through the valve 34 from line 30 to line 28. Line 29 is connected to the line 31 return valve 35 with the possibility of moving the working fluid through the valve 35 from line 29 to line 31. Line 30 is connected to the line 32 back-pressure valve 36 with the fluid through the valve 36 from line 30 to line 32. Line 31 is connected to the line 32 non-return valve 37 with the possibility of movement of the working fluid through the valve 37 from line 32 to line 31. The piston cylinder chamber 7 by line 38, and rod - the line is wetlease line 32 to the tank 33. Line 38 is connected to the line 40 non-return valve 42 with the liquid flow through the valve 42 from line 40 to line 38. Line 39 is connected to the line 41 check valve 43 with the possibility of movement of the working fluid through the valve 43 from line 39 to line 41. Line 40 is connected to the line 32 check valve 44 with the liquid flow through the valve 44 from line 40 to line 32. Line 41 is connected to the line 32 check valve 45 with the possibility of movement of the working fluid through the valve 45 from line 32 to line 41. The valves all valves are made pogrujennym. The tank 33 may be located above the rest of hidroapparatus, or can have inside a pressure above atmospheric.

Device to prevent tipping of the vehicle operates as follows. When driving on a support surface with a relatively small bias between the spool 11, 17, 21, 27 valves 8,9,18,19 and the corresponding pushers 10,16,20,26 there is a gap. The valves 11 and 17 are in the extreme left, and the valves 21 and 27 to the right (in the drawing) position. Hollow cylinders 6 and 7 through the respective valves 8,19 and 18.9 connected to the tank 33. The piston cylinder is STI with respect to the frame of the vehicle 3 and not to interfere with the work of supporting and leading bodies of the vehicle 3. Because the beams 1 and 2 are guided by the respective swivel wheels 4 and 5, rotation of the vehicle in terms of potential, and swivel wheels 4 and 5 do not affect the settings for this turn. When driving the vehicle on the supporting surface with relatively large bias, for example, up the slope starts overturning of the vehicle causes the rotation of the beam 2 relative to the vehicle counterclockwise (in the drawing), dvizhenie rod 24 in the cylinder 7. Together with the rod 24 will move and the bracket 23 with the pushers 20 and 26. After sampling gaps between the pushers 20,26 and the respective spools 21,27 valves 18,19 pushers 20,26 moves the spools 21,27 to the left (in the drawing) position, will be compressed spring spools. Cylinder cavity 6 by the valve 19 is disconnected from the tank 33. Due to the non-return valve 36 and 37 of the rod 14 of the cylinder 6 may not be promoted, dvizhenie same rod 14 is possible. Samostanowienia wheel 4 together with the beam 1 with a possible further rotation of the machine hung out and acts as a counterweight. When possible touch self-aligning wheel 4 pornoebi arrow (on the drawing), ndwiga the rod 14 of the cylinder 6. Thus, samostanowienia wheel 4 will not affect the interaction between the support and the leading bodies of the vehicle 3 with the supporting surface. Cylinder cavity 7 by the valve 18 is disconnected from the tank 33. Thanks to reverse the valves 42 and 43 of the piston rod of the hydraulic cylinder can be extended, but may not be vdvinul. Samostanowienia wheel 5 through the beam 2 and the cylinder 7 takes part of the weight of the vehicle 3, the length of the reference path of the vehicle 3 is increased, rollover stops. When reducing the slope of the supporting surface with the rod 24 of the hydraulic cylinder 7 extends vehicle 3 is returned to its original position. Beam 2 is rotated while clockwise (in the drawing), the pushers 20 and 26 free spools 21 and 27, which springs back to the right (in the drawing) position, the cavity of the hydraulic cylinders 6 and 7 is again connected via respective valves to the tank 33. Screw connections 22 and 25 allow you to adjust the spacing between the pushers 20,26 and the respective spools 21 and 27 of the valves 18 and 19, therefore, to adjust the beginning of bodemecologie can be obtained from the difference of the switching valves 18 and 19 (rapid switching valve 19 and is provided ahead of the rise of the self-aligning wheel 4 when turning the vehicle. Circuit cylinder 6 may be due to the inclusion of an acoustic warning signal in the cab.

When driving the vehicle down the slope of the forward motion of the device is the same as the above, only the beam 2 and samostanowienia wheel 5 will act as a counterweight, and samostanowienia wheel 4 - support.

Technical and economic advantage of the inventive device are increased performance, allowing you to install the device on any mobile machine and operate it in any circumstances when the safety of the driver. (56) USSR Author's certificate N 579215, CL 66 With 23/78, 1977.

USSR author's certificate N 1066873, CL 62 D 49/08, 1982.

DEVICE TO PREVENT TIPPING of the VEHICLE containing the associated one ends to the frame of the vehicle front and rear beams, on the free ends of which are mounted the supporting swivel wheels, characterized in that, to improve performance, and front and rear beams pivotally connected with the frame of the vehicle and with the same ends of the cylinders, the other ends of which are also scionix point the spools are made interoperable with adjustable tappets, pairwise rigidly connected with the cylinders, the front cavity of which is connected by hydrologically installed on the case of the first valve connecting the first position of the valve front cylinder mounted on the rear of the cylinder by a third valve, which in the first position of the valve connects the front cylinder to the tank, while in the second positions of the spools of the first and third valves supply lines connecting the cavity of the front cylinder to the tank, locked and cavity of the rear cylinder are connected by hydrologically installed on the rear cylinder is the fourth valve, which in the first position of the valve connects the rear cylinder is installed on the housing front cylinder second valve connecting the first position of the spool in the rear cylinder to the tank, and secondly the positions of the spools of the fourth and second control valves in the supply lines connecting the cavity of the rear cylinder to the tank, locked, and each hydrological supply the distributors.

 

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