Device for emergency braking of transport vehicle

FIELD: motor industry.

SUBSTANCE: invention is related to the field of motor industry, namely to devices of emergency braking of transport means. Device of emergency braking includes rod with tip and its drive, which interacts with transport manifold. Rod is arranged as cylindrical and stepped with lower diametre on the side of tip. Drive is equipped with hollow cylinder, which with its internal diametre is coupled with large diametre of rod and has explosive charge arranged at end wall. Rod is connected to braking device by means of rope. End of rope is arranged in the form of ring with fixture and rests on pins, covering upper parts of both legs. Lower parts of two legs are installed on roller outside and inside relative to rod with smaller diametre with the possibility of rotation at this roller till stop against tip collar. Each of legs is installed with the possibility of interaction with one of two movable pins, which are installed in cylindrical cavity of lower part of stepped rod, between which there is a low energy charge.

EFFECT: invention provides for increased reliability and efficiency of emergency braking device due to reliable retention of stepped rod in road carpet.

4 cl, 7 dwg

 

The invention relates to the automotive industry. Primary area of application of high - speed vehicles operating with a high probability of emergency situations.

Known brakes of vehicles used in those cases when the regular brakes fail or do not provide the desired rate of deceleration at occurrence of emergency situations.

These devices include an actuator in the form of a power cylinder with the rod, put forward by the pressure of compressed air or fluid, and an actuator (brake device), made in the form of the Shoe pressed against the road surface.

The disadvantage of all these design solutions is a low speed drive of the brake device and the limited magnitude of the braking force, which leads to a large roadside paths (U.S. Patent No. 2459016, CL WT 1/14, 1949).

Closest to the proposed technical solution is the emergency brake of the vehicle, which includes interacting with the highway stepped cylindrical rod with a tip and the actuator, provided with a hollow cylinder whose inner diameter is associated with a larger diameter rod and has at the end wall of the explosive charge, while serving down among the hollow cylinder of the rod with a smaller diameter is placed a ring, connected by a rope with the brake drum (RF Patent No. 2022842, publ. 15.11.1994, bull. No. 21).

Specified brake device has the following disadvantages

1. Ineffective fixing speed of the rod in the road surface, which can lead to the ejection rod in the braking process of the vehicle.

2. Not enough reliable connection cable with stepped rod through the rings, which can cause separation of the cable from the terminal.

3. Failure to comply with conditions of perpendicularity of the absolute motion of the rod to the surface of the pavement at high vehicle speed, which reduces the reliability of penetration of the rod into the road surface and its retention in the coating. The technical result of the proposed device to improve the reliability and efficiency of the emergency braking device through a reliable hold of the stepped rod in the road surface.

This technical result is achieved by the fact that:

the emergency braking of the vehicle includes interacting with the thoroughfare of the rod with a tip and the actuator, the rod is cylindrical and stepped to a smaller diameter from the tip, and the actuator has a hollow cylinder whose inner diameter is associated with a larger diameter is of terina and has the end wall of the explosive charge, when this rod is connected with the brake device through a cable, the end of which is in the form of a ring with bracket rests on the pins, covering the upper parts of the two legs, the lower part of which is installed on the shaft inside and out with respect to the rod with a smaller diameter can be rotated on the shaft until it stops on the shoulder of the handpiece;

- each of the legs mounted for engagement with one of the two movable pins arranged in the cylindrical cavity of the lower part of the stepped shaft, between which there is a charge of low-power;

the angle α between the direction of movement of the vehicle and the longitudinal axis of the stepped rod must satisfy the condition: 95,6°<α<107°;

the angle α≅98° for the speed of the vehicle in the range of 72÷200 km/h

Figure 1 schematically shows the emergency brake and its placement on the vehicle; figure 2 - node I in figure 1; figure 3 - the lower part of the stepped rod 3 and its cross-section along the axis of the roller clutches; figs.4 and 5 - end position of the stepped rod 3 during braking of the vehicle; figure 6 is a parallelogram of velocities in complex movement speed of the rod taken (for simplicity) for point.

The emergency braking of the vehicle contains placed on the frame of the car 1 brake drum 2, stupas is Naty rod 3 with the pointed tip 4, the upper part 5 of the stepped rod 3 has a larger diameter and the lower part 6 is smaller.

A stepped rod 3 to its diameter top 5 mates with the inner diameter of the hollow cylinder 7, which in its front part has a removable lid 8 and the explosive charge 9. A stepped rod 3 is held in its upper position by the stop 10. On the lower part 6 speed rod 3 in the cut cylinder 7 is placed the end of the cable 11 in the form of a ring 12 with the bracket 13. The cable 11 communicates with the brake drum 2.

The ring 12 covers the outer 14 and inner 15 feet stepped rod 3 and is supported on pins 16 located on both sides of the stepped rod 3. Legs 14 and 15 mounted to rotate on the shaft 17 is held in a predetermined position of the head 18 and the head on the screw 19.

External paw 14 covers the lower part of the stepped rod 3 with its loops on both sides, internal 15 is seated on the shaft 17 by one loop, is inserted into the window 20 of rectangular shape. The flange 21 of the tip 4 of the stepped rod 3 serves to pirania of legs 14 and 15 at their maximum rotation, as well as to ensure smooth movement of the legs with the platen when the penetration speed terminal 3 of the road surface, consisting, for example, from a layer (or layers) of 22 asphalt and concrete base 23 of the road. Explosive is a long 24 low power is used to propel the movable pins 25, turning the legs 14 and 15, so that their ends are removed from the stepped rod 3 forming device type anchors. The operation of charge 24 may occur from the capsule device from the sensor slow the movement speed of the rod 3, or using other known methods, for which the author does not claim.

Depending on the size of the explosive charge 9 and the strength characteristics of the concrete base 23 of the stepped rod 3 may be in one of the intermediate positions between the two extreme presented on figure 4 and 5. In the case shown in figure 5, it is possible the movement speed of the rod 3 in the direction indicated by the arrow. This movement is called the power cable tension 11. During this movement of the legs 14 and 15 due to the resistance of the rock on which rests the concrete base 23, rotated until then, until they rest against the flange 21 of the tip 4 and the lower part of the concrete base 23 (paw 15). The latter provides reliable fastening ring 12 of the cable 11, and creates conditions for reliable braking.

The reliability of the braking can be increased, if the original set speed terminal 3 on the stop 10 so that the legs and the rope was not lying in one plane.

In this case, the plane passing through the legs to be perpendicular to the direction of movement of the vehicle, and in case of emergency is Imogene paws will take the position, this figure 5, taking into account their rotation around the longitudinal axis of the stepped rod 3 at the angle φ=90°.

Operates emergency brake as follows. When the emergency situation, when to stop the vehicle service brake devices is not possible, for example, before a sudden obstacle in the form of another vehicle, the driver undermines the charge 9. Under the pressure of the powder gases stepped rod 3 breaks down the stop 10 and starts to move toward highways. He then punches layer 22 and the concrete base 23, and the ring 12 of the cable releases the legs 14 and 15, staying on the asphalt layer 22. In the next moment the ring forcing to this layer flange of the upper part 5 of the stepped rod 3, and the rod stops.

The backlash of the cable 11 should correspond (with some margin) the displacement S of the vehicle for the period of time from the moment of the contact layer 22 highways tip step 4 of the rod 3 until the stop of the rod in the position shown in figure 4.

As shown by calculations using known data and results (RF Patent 2048325, publ. 20.11.1995, bull. No. 32), this displacement, S, is: S1=0.1 m, S2=0.2 m and S3=0.3 m for the speed V of the vehicle, respectively: V1=100 km/h 2=200 km/h and V3=300 km/h

At the time of stop of the stepped rod 3 fires the explosive charge low power 24 and the movable pins 25, moving under the action of the powder gases affect the legs 14 and 15 so that their ends are removed from the stepped rod 3 (figure 4).

Even in the presence of axial movement stepped up the rod 3 under the action of the tension force of the rope 11 feet 14 and 15, diverges further from the speed of the rod 3, is not allowed to pull this rod, securely holding it at the bottom of the base 23 (figure 5).

(When the maximum distance of the legs 14 and 15 of the stepped rod 3 (figure 5) to the plane of the legs In A' C D', presented in figure 3 segments, will be in contact respectively with the planes AB and CD flange 21 of the handpiece 4. In this case, the restraining effect of the stepped rod 3 feet is the maximum.)

Figs.4 and 5 (RF Patent 2048325) the angle α between the direction of movement of the vehicle and the longitudinal axis of the stepped rod 3 is acute and is 74° (figure 4) and 63° (figure 5). (Data by angle α in this patent are not given in these examples are, of course, approximate.)

However, in accordance with the material related to the complex kinematics of the motion of a point, the angle α must be stupid (6) and according to the calculations is equal to: α1=95,6° at V1=100 km/h, α2=101,2° at V=200 km/h and α 3=107° at V3=300 km/h

If we put V=Ve=150 km/h, then α=98°. Then, by comparing the angles α in our case and in the case of patent RF №2048325 (see figure 4, as larger), get:or Δα%=32,4%0 - error in the determination of the angle α, the value of which is essential. Figure 6 and in the text are:the absolute speed of the stepped rod 3;

- the drive speed or the speed V of the vehicle;- relative velocity of predicates. (directed vertically. This condition of perpendicularityroads highways need for more reliable penetration pavement stepped rod 3.)

If a basis to take α=98°, and this angle to set the full cylinder 7 (and, consequently, a stepped pin 3), the speed of the vehicle, for example, Vmin=72 km/h and Vmax=200 km/h will have a mismatch (error) Δα%, equaland. This is many times smaller than the error 32,4%, related to the patent prototype of the Russian Federation No. 2048325.

Thus, it is possible to recommend to the angle α=98° when installing the hollow cylinder 7 in the rear of the vehicle speed, R is the bench in the range of 72÷200 km/h

1. The emergency braking of the vehicle, including interacting with the thoroughfare of the rod with a tip and the actuator, the rod is cylindrical and stepped to a smaller diameter from the tip, and the actuator has a hollow cylinder whose inner diameter is associated with a larger diameter rod and has at the end wall of the explosive charge, and the rod connected with the brake device through a cable, characterized in that the end of the rope in the form of a ring with bracket rests on the pins, covering the upper parts of the two legs, the lower part of which is installed on the shaft inside and out with respect to the rod with a smaller diameter can be rotated on the shaft until it stops on the shoulder of the tip.

2. The device according to claim 1, characterized in that each of the legs mounted for engagement with one of the two movable pins arranged in the cylindrical cavity of the lower part of the stepped shaft, between which there is a charge of low power.

3. The device according to claim 1, characterized in that the angle α between the direction of movement of the vehicle and the longitudinal axis of the stepped rod satises: 95,6°<α<107°.

4. The device according to claim 3, characterized in that the angle α≅98° for high-speed transport mode cf is DSTV in the range of 72÷200 km/H.



 

Same patents:

FIELD: motor industry.

SUBSTANCE: invention is related to the field of transport machine building and may be used in braking systems of transport vehicles as emergency and additional braking facility. Device of emergency braking comprises explosive charge located near sharpened stepped rod, braking drum, equipped with braking mechanism, controlled by standard braking system of transport vehicle, and cord for connection of braking drum with sharpened stepped rod. Braking drum is arranged with the possibility of cord disconnection from braking drum, if there is no necessity for further braking or blocking of braking drum rotation.

EFFECT: control of emergency braking mode, expansion of structure resources and increased reliability and efficiency.

3 dwg

FIELD: road vehicles, mounted structures, gates, road guards.

SUBSTANCE: device to deflect energy of head-on impact has movable impact surface installed before object to be protected. Said movable impact surface is provided with longitudinal or bow-shaped stops secured on object to be protected by means of joint providing lowering of stops under action on impact force. Said stops have pointed ends getting into ground at moment when object receives head-on blow or are provided with pointed end pieces ejected by pyrotechnical devices at contact with road pavement and getting into engagement with said pavement. Method of deflection of on head-on impact energy from objects having no strong coupling with ground provides deflecting of impact load by means of protective device. Head-on impact energy is deflected from object to be protected owing to transmission of part of energy to ground at moment of setting of mechanical contact between source of blow and ground by means of device described above.

EFFECT: reduced energy of initial impact falling to object to be protected, increased stability of protected object at collision with running object.

3 cl, 3 dwg

FIELD: transport engineering; brake system of vehicles.

SUBSTANCE: engagement of device increasing safety of wheeled vehicle in case of emergency is provided by applying pressure to brake pedal exceeding by 10% maximum pressure on brake pedal applied by driver.

EFFECT: provision of safety of vehicle and driver.

FIELD: transport engineering.

SUBSTANCE: invention relates to brakes designed for emergency stopping of trucks. Proposed device contains brake wedge and its suspension system arranged under body bottom near truck wheels. Suspension system contains pair of working drums with wound on flexible cables secured at top of wedge, brake drum with brake shoe, and hand winch with working and driven gears arranged on common shaft. Brake shoe is pressed to surface of brake drum by spring and is connected with armature of electromagnet connected to truck battery through emergency switch.

EFFECT: improved safety in operation, reduced wear of brakes.

3 cl, 2 dwg

FIELD: mechanical engineering; automotive industry.

SUBSTANCE: invention can be used at operation of road vehicles under heavy climatic and conditions on rough terrains. Proposed device contains hinged rods with floating shoes with nails secured on ends of rods and locks-catches of rods. Support brackets of rods are arranged on fixed parts of rear axle of automobile. Rods are made in form of mechanical lifts or lifts connected to power source through rod switch. Power is supplied to rods-lifts through switch cyclically and in turn. Switch is operated either manually or automatically. Device contains drum with tensioner and friction belt closed in to ring around rear wheel by connecting link. Drum is installed on body.

EFFECT: improved technical characteristics of device, increased safety under heavy climatic and weather conditions on terrain.

4 cl, 3 dwg

FIELD: mechanical engineering; transport engineering.

SUBSTANCE: invention can be used for quick canceling of speed, increasing efficiency of braking in emergency and safety of traffic. Proposed emergency brake of wheeled vehicle has brake members arranged at both sides of carrying frame of body before rear wheels. Each brake member has liquid and solid phases used at braking by common signal from vehicle can. Liquid phase component is made in form of sticky viscous liquid, and solid phase component, in form of arbitrary shape elements of limited size. Components of both phases and mixed in arranged in container secured on common housing with discharge port. Piston pusher is installed from side opposite to discharge port of mixed phase. Said piston pusher can be shifted to discharge port of housing by pneumatic drive. Mixed phases of components in container are separated by diaphragms from side of discharge port and piston pusher. Said diaphragms are installed for breaking in case of pressure rise in behind-the-piston space. Pneumatic drive includes compressed gas cylinder communicating through electromagnetic valve with behind-the-piston space of piston pusher.

EFFECT: increased intensity of speed canceling in emergency.

3 cl, 3 dwg

FIELD: mechanical engineering; transport engineering; brakes.

SUBSTANCE: proposed device contains brake mechanism installed of frame and brought in contact with roadbed, and brake mechanism power drive system. Device is furnished with system to absorb kinetic energy of vehicle. Said system is made in form of cross axle with outer tread rigidly secured to frame and two reels turned onto thread with opposite directions of linear displacement along thread and wire ropes wound on reels, also sets of plate disks made of viscoplastic material freely fitted on axle between outer end faces of reels and stops to secured ends of axle to frame and brought in contact with each other by identical end face rough surfaces and tube of elastic plastic material freely fitted on axle and connecting end faces of reels pointed to each other. Tube is provided with alternating slots orientated square to longitudinal axis of tube. System of power drive of brake mechanism is made in form of housing with built-in explosive cartridge furnished with electric igniter installed on vehicle frame with tilting in direction of straight-ahead movement behind axle with reels. Brake mechanism is essentially rod on end of which is driven inside housing of power drive to contact with explosive cartridge, and other end is furnished with wedge to drive rod into roadbed material. Middle part of rod has fork to connect rod with free ends of ropes wound on reels.

EFFECT: improved efficiency of braking, simplified design of device.

3 cl, 2 dwg

Emergency brake // 2274566

FIELD: mechanical engineering; brakes.

SUBSTANCE: proposed device contains brake mechanism installed o frame of vehicle and brought in contact with road bed, and power drive system of brake mechanism. Device is furnished with system to absorb kinetic energy of vehicle in form of slider made as stepped rectangular plate freely placed with clearances in space of box-section guide rigidly secured to frame. Plates of plastic material are secured inside guide to its bases by ribs to overlap working stroke of slider, plates being set at acute angle relative to direction of working stroke of slider. Power drive system of brake mechanism is made in form of housing installed on vehicle frame at tilting in direction of vehicle running with built-in explosive cartridge with electric igniter. Brake mechanism is essentially rod, one end of which is driven into housing of power drive to contact with explosive cartridge, and other end is furnished with wedge to drive rod into road bed material. Coupling link of brake mechanism with slider of energy absorbing system is freely fitted in middle part of rod between two stops.

EFFECT: improved efficiency of braking, simplified design of device.

2 dwg

The invention relates to the field of transport engineering and is intended for use in wheeled trackless vehicles during emergency braking

The invention relates to methods of emergency braking of the vehicle, primarily a vehicle, in which the bodies braking act directly on the road

Emergency brake // 2274566

FIELD: mechanical engineering; brakes.

SUBSTANCE: proposed device contains brake mechanism installed o frame of vehicle and brought in contact with road bed, and power drive system of brake mechanism. Device is furnished with system to absorb kinetic energy of vehicle in form of slider made as stepped rectangular plate freely placed with clearances in space of box-section guide rigidly secured to frame. Plates of plastic material are secured inside guide to its bases by ribs to overlap working stroke of slider, plates being set at acute angle relative to direction of working stroke of slider. Power drive system of brake mechanism is made in form of housing installed on vehicle frame at tilting in direction of vehicle running with built-in explosive cartridge with electric igniter. Brake mechanism is essentially rod, one end of which is driven into housing of power drive to contact with explosive cartridge, and other end is furnished with wedge to drive rod into road bed material. Coupling link of brake mechanism with slider of energy absorbing system is freely fitted in middle part of rod between two stops.

EFFECT: improved efficiency of braking, simplified design of device.

2 dwg

FIELD: mechanical engineering; transport engineering; brakes.

SUBSTANCE: proposed device contains brake mechanism installed of frame and brought in contact with roadbed, and brake mechanism power drive system. Device is furnished with system to absorb kinetic energy of vehicle. Said system is made in form of cross axle with outer tread rigidly secured to frame and two reels turned onto thread with opposite directions of linear displacement along thread and wire ropes wound on reels, also sets of plate disks made of viscoplastic material freely fitted on axle between outer end faces of reels and stops to secured ends of axle to frame and brought in contact with each other by identical end face rough surfaces and tube of elastic plastic material freely fitted on axle and connecting end faces of reels pointed to each other. Tube is provided with alternating slots orientated square to longitudinal axis of tube. System of power drive of brake mechanism is made in form of housing with built-in explosive cartridge furnished with electric igniter installed on vehicle frame with tilting in direction of straight-ahead movement behind axle with reels. Brake mechanism is essentially rod on end of which is driven inside housing of power drive to contact with explosive cartridge, and other end is furnished with wedge to drive rod into roadbed material. Middle part of rod has fork to connect rod with free ends of ropes wound on reels.

EFFECT: improved efficiency of braking, simplified design of device.

3 cl, 2 dwg

FIELD: mechanical engineering; transport engineering.

SUBSTANCE: invention can be used for quick canceling of speed, increasing efficiency of braking in emergency and safety of traffic. Proposed emergency brake of wheeled vehicle has brake members arranged at both sides of carrying frame of body before rear wheels. Each brake member has liquid and solid phases used at braking by common signal from vehicle can. Liquid phase component is made in form of sticky viscous liquid, and solid phase component, in form of arbitrary shape elements of limited size. Components of both phases and mixed in arranged in container secured on common housing with discharge port. Piston pusher is installed from side opposite to discharge port of mixed phase. Said piston pusher can be shifted to discharge port of housing by pneumatic drive. Mixed phases of components in container are separated by diaphragms from side of discharge port and piston pusher. Said diaphragms are installed for breaking in case of pressure rise in behind-the-piston space. Pneumatic drive includes compressed gas cylinder communicating through electromagnetic valve with behind-the-piston space of piston pusher.

EFFECT: increased intensity of speed canceling in emergency.

3 cl, 3 dwg

FIELD: mechanical engineering; automotive industry.

SUBSTANCE: invention can be used at operation of road vehicles under heavy climatic and conditions on rough terrains. Proposed device contains hinged rods with floating shoes with nails secured on ends of rods and locks-catches of rods. Support brackets of rods are arranged on fixed parts of rear axle of automobile. Rods are made in form of mechanical lifts or lifts connected to power source through rod switch. Power is supplied to rods-lifts through switch cyclically and in turn. Switch is operated either manually or automatically. Device contains drum with tensioner and friction belt closed in to ring around rear wheel by connecting link. Drum is installed on body.

EFFECT: improved technical characteristics of device, increased safety under heavy climatic and weather conditions on terrain.

4 cl, 3 dwg

FIELD: transport engineering.

SUBSTANCE: invention relates to brakes designed for emergency stopping of trucks. Proposed device contains brake wedge and its suspension system arranged under body bottom near truck wheels. Suspension system contains pair of working drums with wound on flexible cables secured at top of wedge, brake drum with brake shoe, and hand winch with working and driven gears arranged on common shaft. Brake shoe is pressed to surface of brake drum by spring and is connected with armature of electromagnet connected to truck battery through emergency switch.

EFFECT: improved safety in operation, reduced wear of brakes.

3 cl, 2 dwg

FIELD: transport engineering; brake system of vehicles.

SUBSTANCE: engagement of device increasing safety of wheeled vehicle in case of emergency is provided by applying pressure to brake pedal exceeding by 10% maximum pressure on brake pedal applied by driver.

EFFECT: provision of safety of vehicle and driver.

FIELD: road vehicles, mounted structures, gates, road guards.

SUBSTANCE: device to deflect energy of head-on impact has movable impact surface installed before object to be protected. Said movable impact surface is provided with longitudinal or bow-shaped stops secured on object to be protected by means of joint providing lowering of stops under action on impact force. Said stops have pointed ends getting into ground at moment when object receives head-on blow or are provided with pointed end pieces ejected by pyrotechnical devices at contact with road pavement and getting into engagement with said pavement. Method of deflection of on head-on impact energy from objects having no strong coupling with ground provides deflecting of impact load by means of protective device. Head-on impact energy is deflected from object to be protected owing to transmission of part of energy to ground at moment of setting of mechanical contact between source of blow and ground by means of device described above.

EFFECT: reduced energy of initial impact falling to object to be protected, increased stability of protected object at collision with running object.

3 cl, 3 dwg

FIELD: motor industry.

SUBSTANCE: invention is related to the field of transport machine building and may be used in braking systems of transport vehicles as emergency and additional braking facility. Device of emergency braking comprises explosive charge located near sharpened stepped rod, braking drum, equipped with braking mechanism, controlled by standard braking system of transport vehicle, and cord for connection of braking drum with sharpened stepped rod. Braking drum is arranged with the possibility of cord disconnection from braking drum, if there is no necessity for further braking or blocking of braking drum rotation.

EFFECT: control of emergency braking mode, expansion of structure resources and increased reliability and efficiency.

3 dwg

FIELD: motor industry.

SUBSTANCE: invention is related to the field of motor industry, namely to devices of emergency braking of transport means. Device of emergency braking includes rod with tip and its drive, which interacts with transport manifold. Rod is arranged as cylindrical and stepped with lower diametre on the side of tip. Drive is equipped with hollow cylinder, which with its internal diametre is coupled with large diametre of rod and has explosive charge arranged at end wall. Rod is connected to braking device by means of rope. End of rope is arranged in the form of ring with fixture and rests on pins, covering upper parts of both legs. Lower parts of two legs are installed on roller outside and inside relative to rod with smaller diametre with the possibility of rotation at this roller till stop against tip collar. Each of legs is installed with the possibility of interaction with one of two movable pins, which are installed in cylindrical cavity of lower part of stepped rod, between which there is a low energy charge.

EFFECT: invention provides for increased reliability and efficiency of emergency braking device due to reliable retention of stepped rod in road carpet.

4 cl, 7 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building, namely to automotive brakes. Proposed device comprises frame, braking assembly with sharpened elements, and power cylinders. Said frame comprises brackets pivoted to rear axle beam or car body. Each bracket accommodates pneumatic- or electric-drive power cylinder. Brackets are interjointed by threaded axle. Braking assembly is made up of two rollers with sharpened elements. Rollers with inner thread are fitted on axle. Spring is arranged on each side of said axle between roller and bracket.

EFFECT: simplified design.

1 dwg

Up!