Hydro-mechanical lifting device for maintenance of wheeled vehicles
(57) Abstract:Usage: the invention relates to maintenance of vehicles, in particular for the design of hoisting-and-transport and diagnostic devices for maintenance and repair of vehicles. The inventive device comprises a U-shaped bridge 4, pivotally mounted on the base, the cylinders 1, pivotally associated with the base and a bridge mounted on the cross beam 6 hydraulic jacks 5, interacting with the nodes of the vehicle. Nagorskaya cavity of the cylinder 1 is communicated through the check valve 3 with podpisniye cavities of the hydraulic jacks 5, and Nagorskaya and podpisniye hollow cylinders communicated with each other via the control valve 12. In macropodidae highway connecting podpisniye cavity of the cylinder 1 with a reservoir (tank) 9 posted crane 7 management. To actuate the device does not require power plant, because the movement of the hydraulic Jack 5 is carried out by feeding in their cavity oil under the weight of the vehicle. 1 C.p. f-crystals, 1 Il. The invention relates to maintenance of vehicles, in particular to constructionist, in addition to tracked vehicles.Lifting devices are widely used for maintenance of trucks, tractors and other vehicles. Using these devices (lifts) of the machine are displayed in whole or in part on the frame or on the bridges in a convenient position for carrying out maintenance work.Known lift, containing the rack, the carriage supports and drives the moving carriage 
A disadvantage of such devices is that they are complex and are driven from the power plant.Known hydro-mechanical lifting device for maintenance of wheeled vehicles, containing mounted articulated on the basis of the U-shaped bridge, a hydraulic cylinder pivotally attached to the bridge and the base, and a hydraulic system with macropodidae highways and oil reservoir 
A disadvantage of the known construction is that its drive is provided from the power plant. For this purpose the unit is used such expensive units, as the hydraulic pump, a hydraulic accumulator and the control valve. In this regard, the design of the lift complex, expensive, not enough nadareski result of the invention is the reduction of energy consumption for the drive of the lifting device, improving its reliability and working conditions, and increased productivity for maintenance vehicles.This is achieved by the fact that hydro-mechanical lifting device for maintenance of wheeled vehicles, containing mounted articulated on the basis of the U-shaped bridge, a hydraulic cylinder pivotally attached to the bridge and the base, and a hydraulic system with macropodidae highways and oil reservoir, equipped with a swivel attached to the bridge and the base of the second hydraulic cylinder, the cavity of which is connected to the drains of the same cavities of the first hydraulic cylinder mounted on the cross beam base with two hydraulic jacks to communicate with nodes of the vehicle, podpisniye cavity are connected by an oil line, and the lock bridge in its horizontal position, and the hydraulic system is equipped with two check valves, one of which is installed in macropodidae highway connecting Nagorskaya hollow cylinders with podpisniye cavities of the hydraulic Jack with the possibility of oil supply in the above-mentioned cavity of the hydraulic Jack when lifting the front of the bridge under the weight tra is of indrow, and two control valves, one of which is installed in the line connecting Nagorskaya and podpisniye hollow cylinders, and the other in the drain line that tells podpisniye hollow cylinders with capacity for oil.The drawing shows a mechanical-hydraulic lifting device for vehicle maintenance.The unit is mounted in the viewing hole on the maintenance of machines and comprises a pivoting U-shaped bridge 4 mounted on the cylindrical hinge 8 at the base of the pit and connected pivotally with the rods of the two cylinders 1 double-acting; two hydraulic jacks 5, mounted on the beam 6 has a square cross-section, of the expansion tank (capacity) with non-return valve 10, the oil lines 11, a check valve 3 in macropodidae line to the hydraulic jacks 5 and valves 7 and 12 controls. In front of the bridge has lugs 2 which are mounted for movement along the bridge. When this transverse beam 6 under the jacks mounted on the base of the pit still. Hydraulic cylinders pivotally connected with the base side walls of the sight hole. Same cavity hydraulic cylinders and hydraulic jacks needed on the front, middle or rear axle.The principle of operation of the device shown in the example of putting the car on the front axle. The car its own set front wheels on the rear of the hinged bridge. Under the weight of the front part of the vehicle rear part of the bridge is lowered, and the front rises, pulling the cylinders. When this oil from nadporshnevaya cavities of the hydraulic cylinders oil line connecting them, is fed through the check valve to the cavities of the hydraulic jacks, the stocks that rise under the action of oil pressure generated in nadporshnevaya cavities of the cylinders and then locked in this position: discharge cavity hydraulic Jack closed with one hand non-return valve 3, and the other valve control 7. Podpisniye hollow cylinders thus replenished with oil from the surge tank. Then the car its course moves along the bridge until it touches the front wheel stops. Then the control valve 12 is translated in the "Open" position (lower bridge), which Nagorskaya cavity of the hydraulic cylinders are connected with podpisniye. The bridge with the car under the weight of the front of the car slowly lowered and p is avno falls on the basis of the observation of the pit to the original horizontal position. After you perform the necessary maintenance or repair of the tap 7 of the control means in the "Open" position (lowering the rods of jacks) at which the oil from the injection cavities of the hydraulic Jack through the oil lines and the crane is discharged into the surge tank. As a result, the vehicle under its own weight gently lowered the bridge to the original horizontal position. The bridge is fixed and serviced the vehicle, if necessary, removed from it on their own. After the bridge is removed from the clamp, the control valves are translated into the "Closed" position, and the lifting device is ready for posting next vehicle.When you put a car on the rear axle device works in a similar way. Thus there are two options for posting: first, when the car after service front axle moves his move forward, and second, when the car reversing set on the bridge to touch the wheels of the rear axle of the thrust collar. When servicing three-axle vehicles with a sequence of hanging them on the bridges similar, as and when the service biaxial machines. If ed is away in limbo. If three-axle vehicle is on the bridge back (if maintenance is required the rear or middle axle), it is placed on the rear axle, middle axle when this position is in limbo.Lifting device works silently, for his drive does not require power plant. While hanging out of the vehicle is carried out in parts if necessary, on the front, middle or rear axle. The device is simple, reliable and can be mounted on the maintenance of vehicles, in addition to tracked vehicles. The complexity of maintenance of vehicles using this device is not increased, and working conditions do not deteriorate. 1. Hydro-mechanical lifting device for maintenance of wheeled vehicles, containing mounted articulated on the basis of the U-shaped bridge, a hydraulic cylinder pivotally attached to the bridge and the base, and a hydraulic system with macropodidae highways and oil reservoir, characterized in that it is provided with a hinge attached to the bridge and the base of the second cylinder cavity to the Noah beam base with two hydraulic jacks to communicate with nodes of the vehicle, podpisniye cavity are connected by an oil line, and the lock bridge in its horizontal position, and the hydraulic system is equipped with two check valves, one of which is installed in macropodidae highway connecting Nagorskaya hollow cylinders with podpisniye cavities of the hydraulic Jack with the possibility of oil supply in the above-mentioned cavity of the hydraulic Jack when lifting the front of the bridge under the weight of the vehicle, and the other line connecting the oil reservoir with podpisniye cavities of the cylinders, and two control valves, one of which is installed in the line connecting Nagorskaya and podpisniye hollow cylinders, and the other in the drain line, reporting podpisniye cavity of the hydraulic jacks with capacity for oil.2. The device under item 1, characterized in that the U-shaped bridge is equipped with stoppers located in the front part can move along it, and the transverse beam for hydraulic jacks installed still.
SUBSTANCE: turner comprises base (6), turning hydraulic cylinders (7, 8), platforms (1, 2) and supporting device representing two supports for pair of carriage wheels (9). Platform rotation axes can be aligned with the axle of wheel pair fitted in the seat of supports.
EFFECT: possibility to turn over products with no special retainers and rotary supporting platform.
SUBSTANCE: device for lifting vehicle turned over in accident includes two L-shaped asymmetrical beams the ends of short arms of which are equipped with assemblies to be coupled with turned over vehicle bottom, and the ends of long arms of which are equipped with loops. In the centre of gravity of each beam, lugs for their lifting and transportation are mounted. The device is provided with longitudinal beam equipped with clamps interacting with loops of L-shaped beams and attachment fixtures at their ends for suspending onto hooks of lifting cranes. The length of longitudinal beam is not less than the length of turned over vehicle.
EFFECT: possibility to lift large-dimensioned heavy transport facilities, lifting process duration reduction and simplification.
FIELD: motor car construction.
SUBSTANCE: claimed method comprises placing of the vehicle on the bearing horizontal surface and applying the test load thereto. Tilting moment is created relative to the vehicle lengthwise axis unless the vehicle one side wheel breakaway from said bearing horizontal surface. Then, the force is applied to the vehicle sprung part perpendicular to vehicle lengthwise axis in the plane drawn through the geometrical gravity centre. Then, the sprung part bank angle is measured. In compliance with the first version, the vehicle crosswise static stability angle is defined. In compliance with the second version, the amount of tilting moment is defined and vehicle crosswise static stability angle is calculated.
EFFECT: possibility for the vehicle static crosswise stability determination without application of the bench with tilting platform.
4 cl, 5 dwg