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11 results about "Roll center" patented technology

The roll center of a vehicle is the notional point at which the cornering forces in the suspension are reacted to the vehicle body. There are two definitions of roll center. The most commonly used is the geometric (or kinematic) roll center; the Society of Automotive Engineers uses a force-based definition.

High-ground-clearance chassis and bundling equipment

The invention discloses a high-ground-clearance chassis and bundling equipment. The diameter of a front wheel is smaller than that of a rear wheel. The rear wheels are driving wheels, and the two rear wheels are rigidly connected with the frame through the rear axle; the front wheels are non-driving wheels, and trundle rotating shafts of the two front wheels are connected with the frame through oblique arm type independent suspensions respectively; the frame inclines upwards from the center of the rear wheel to the front plane, and the height from the forefront of the frame to the ground is larger than the set height; the oblique arm type independent suspension comprises a damping element, a first connecting rod almost perpendicular to the transverse plane and a second connecting rod almost perpendicular to the longitudinal plane. The first end of the damping element is connected with the frame, and the second end of the damping element is connected with a trundle rotating shaft of the front wheel. The first connecting rod and the second connecting rod are hinged to trundle rotating shafts of the front wheels, the second connecting rod and the frame are hinged to a first oblique arm hinge point, the first connecting rod and the frame are hinged to a second oblique arm hinge point, the first oblique arm hinge point is higher than the second oblique arm hinge point, and the side inclination center of the oblique arm type independent suspension is higher than the gravity center of the whole machine.
Owner:JIANGSU XCMG CONSTRUCTION MACHINERY RESEARCH INSTITUTE LTD

Low-abrasion rough rolling centering device and equipment

The invention relates to the technical field of rough rolling conveying, in particular to a low-abrasion rough rolling centering device and equipment which comprises a supporting ball, a correcting plate, a driving unit and a linear driver. The supporting balls are arranged in a rectangular array and form a bearing end face, the bearing end face is used for bearing steel, and the supporting balls are in rolling fit with the bottom of the steel. The number of the correcting plates is two, the two correcting plates are arranged on the two sides of the bearing end face correspondingly, rotating rollers are rotationally arranged on the sides, close to each other, of the two correcting plates correspondingly, and the rotating rollers are in rolling fit with the side wall of the steel. The driving unit is arranged above the bearing end face and comprises a driving roller, the driving roller is used for making contact with the upper portion of the steel and driving the steel to move, and the axis of the driving roller is parallel to the arrangement direction of the two correcting plates; and the linear driver is vertically arranged at the upper part of the driving unit. The defects such as scratches and crush damage on the surface of the steel are avoided, and abrasion of the steel to device parts is reduced.
Owner:NINGBO ZHONGCHAO MASCH CO LTD

Crawler belt automatic roll unfolding and centering system and method

The invention provides an automatic crawler belt unfolding and rolling centering system and method, and belongs to the technical field of factory automatic assembly in the engineering machinery industry, and the system comprises two subsystems which are symmetrically arranged along a production line and used for assembling crawler belts on the two sides of a lower vehicle frame assembly at the same time. Each subsystem comprises an automatic centering device and an automatic roll unfolding device; the automatic centering device is used for realizing automatic centering and positioning of the crawler belt; the automatic unrolling device is provided with a clamping piece used for clamping the first tail end of the crawler belt and dragging the crawler belt to unroll automatically, the clamping piece is provided with at least two working positions, the first working position corresponds to the to-be-assembled position of the crawler belt, and the second working position corresponds to the combined assembly station of the crawler belt. According to the invention, the two working stations of the clamping piece are arranged to realize automatic rolling of the crawler belt after the crawler belt is flattened and traction centering, the flattened crawler belt is centered and positioned by matching with the automatic centering device, and the whole set of system is combined with intelligent control, so that the automation degree of crawler belt assembly can be improved, the bottleneck of the production process is solved, and the assembly safety is improved.
Owner:XCMG EXCAVATOR MACHINERY CO LTD

Roller centering monitoring equipment

The utility model provides a roll centering monitoring equipment, including fixing mechanism, elevating mechanism, monitoring device and protection mechanism, elevating mechanism includes elevating portion and connecting portion, elevating portion is connected on the fixing mechanism and can move up and down along the vertical direction, the top end of elevating portion is used for contact with the roll neck of roll, and the connecting portion is used for connecting with the monitoring device. The monitoring device is used for monitoring vertical displacement of the roller, and the protection mechanism is connected to the side face of the fixing mechanism. Therefore, after the top of the lifting part is in contact with the roller neck, when the vertical position of the roller is changed due to abrasion of a side tile and a bottom tile of a grinding machine or other reasons, the whole lifting mechanism can simultaneously perform displacement linkage, the displacement is monitored and fed back to technicians through the monitoring device, timely adjustment can be performed when the range is exceeded, operation is simple, and working efficiency is high. Monitoring and actual abrasion are linked in time, the adjustment efficiency is greatly improved, measurement errors can be eliminated different from measurement of measurement personnel, and the adjustment accuracy is improved.
Owner:HUNAN VALIN LIANYUAN IRON & STEEL CO LTD

Roll center height adjustment mechanism

The present invention provides a roll center height adjustment mechanism that allows the roll center position to be set to approximately the same position even for vehicles with different vehicle specifications. [Solution] An adjustment mechanism for adjusting the roll center height position in a suspension device 1 used in a vehicle, comprising: a lower arm 11 that supports the wheel 20 so as to be able to swing vertically relative to the vehicle body and is provided with an inclination that is lower to the vehicle body from below the rotation center Ax of the wheel and is directed upward toward the vehicle body; an upper arm 12 that supports the wheel so as to be able to swing vertically relative to the vehicle body and is provided with an inclination that is higher to the vehicle body from above the rotation center of the wheel and is directed downward toward the vehicle body; an intermediate mounting member 15 provided between the upper arm and the vehicle body and fixing the upper arm to the vehicle body; and a vehicle body mounting point 12a provided on the intermediate mounting member and to which the upper arm is fixed to the vehicle body, wherein the roll center height position is set according to different vehicle specifications at the vehicle body mounting point.
Owner:SUBARU CORP

Vertical roll centering device

The utility model belongs to the technical field of steel coil overturning and transporting systems, and provides a vertical coil centering device which comprises a fixed saddle, a diameter measuring element, a centering mechanism and a carrier roller. The fixed saddle, the centering mechanism and the carrier roller are symmetrically arranged on the two sides of the center line of the inlet steel coil conveying device. The diameter measuring element, the centering mechanism and the carrier roller are all installed on the fixed saddle. When deviation exists in the transverse position of the vertical roll, the vertical roll centering device can push the vertical roll to move to eliminate the transverse deviation, and vertical roll centering is completed. According to the coil upender, impact on the coil upender when a vertical coil is turned into a horizontal coil can be reduced, so that the service life of the coil upender is prolonged, and potential safety hazards during coil upender are reduced.
Owner:CHINA NAT HEAVY MACHINERY RES INSTCO

Vehicle control method, control equipment, vehicle and storage medium

The embodiment of the invention provides a vehicle control method, control equipment, a vehicle and a storage medium, and the method comprises the steps: obtaining current vehicle data and a current vertical input value corresponding to the vertical input of a road surface when the vehicle passes through a large-curvature curve; inputting the current vertical input value into a predetermined roll center height function relational expression, and determining a roll center height expression corresponding to the height from the roll center to the ground; based on the roll center height expression and the current vehicle data, target dynamic models of the front wheel turning angle and the wheel camber angle in the yaw degree of freedom, the lateral degree of freedom and the roll degree of freedom are constructed; carrying out optimization solution on the target kinetic model, and determining an optimal rotation angle value corresponding to a front wheel rotation angle and an optimal camber angle value corresponding to a wheel camber angle; and based on the optimal corner value and the optimal camber angle value, a target component of the vehicle is controlled to work. According to the method, the vehicle can be stably controlled to pass through the large-curvature curve without reducing the speed of the vehicle, and the passing efficiency of the vehicle is improved.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

A vertical roll center line calibration method and device, electronic equipment and storage medium

ActiveCN117772819BGuaranteed accuracyCalibration operation is simpleControl engineeringControl theory
The application belongs to the technical field of hot rolling production, and provides a vertical roll center line calibration method and device, electronic equipment and storage medium, the method comprises the following steps: setting a calibration block at the end of the two-side roll way baffle on the vertical roll rack cross beam, placing a measuring scale on the calibration block and making the measuring scale contact with the calibration block, moving the vertical roll at the same side of the calibration block, making the end face of the vertical roll bearing seat contact with the measuring scale, calibrating the center of the vertical roll opening as the vertical roll center line, and adjusting the vertical roll center line according to the preset strip deviation value. The calibration operation of the application is simple and efficient, and the calibration operation can be completed by the operator outside the rolling mill without stopping the rolling calibration, which eliminates the safety hazard and improves the production efficiency.
Owner:CHONGQING IRON & STEEL CO LTD

Wire storage device for producing wires in high-speed wire factory

ActiveCN224030413UFilament handlingWire rodRoll center
The utility model discloses a wire storage device for producing wires in a high-speed wire factory, which belongs to the field of wire storage devices and comprises a bottom frame, universal wheels are arranged on the bottom surface of the bottom frame, two vertical rods are arranged on the top surface of the bottom frame, the tops of the two vertical rods are connected together through a first connecting rod, the front sides of the vertical rods are connected with inclined rods through second connecting rods, and the inclined rods are arranged on the bottom surface of the bottom frame. A plurality of first placing grooves are formed in the front side of the inclined rod, and a position-adjustable supporting assembly is arranged between every two first placing grooves which correspond to each other in the left-right direction. The supporting assembly with the adjustable position is arranged between the two first containing grooves which correspond to each other in the left-right direction, one end of a center shaft of a wire roll is placed on the first containing grooves, the other end of the center shaft of the wire roll is placed on the supporting assembly, and the wire roll cannot be damaged by pressing; and the position of an adjusting frame in the supporting assembly can be adjusted, adjustment can be conveniently conducted according to wire coils with different diameters, and practicability is high.
Owner:HEBEI PUYANG IRON & STEEL

A roll changing device for an aluminum roll

The utility model discloses a kind of aluminium roll winding uses roll changing drum device, including mobile base and top frame.There is beneficial effect: the utility model uses liftable hook, when being to aluminium roll change drum, staff can push this device to hook is below aluminium roll, subsequently, start drive motor to drive screw rotation, drive lifting seat to go up, drive hook to hang the both ends of aluminium roll, subsequently, after releasing the fixation of aluminium roll center winding drum of winding machine, staff can push this device to drive aluminium roll to move to aluminium roll storage position, subsequently, new aluminium roll winding drum is placed into hook inside, hook bottom is arc structure, aluminium roll winding drum is naturally in hook inside bottom, it can drive winding drum to move to the fixed position of winding drum of winding machine by the lifting of hook, new winding drum is fixed, complete entire replacement process, the trouble of using hoisting equipment is saved, and the working efficiency of aluminium roll winding replacement is improved.
Owner:HENAN HENGTONG NEW MATERIALS CO LTD

Torsion beam suspension movement mechanism with side inclination working condition and building method of torsion beam suspension movement mechanism

The invention relates to the technical field of automobile suspensions, and provides a torsion beam suspension movement mechanism with a roll working condition and a building method of the torsion beam suspension movement mechanism. The construction method of the torsion beam suspension movement mechanism with the side inclination working condition comprises the following steps that S1, parts are imported into a CATIA DMU module according to hard point information obtained through benchmarking or platform development; s2, an auxiliary part is guided in, and a side inclination center line is drawn; s3, constructing a constraint; and S4, directly outputting the envelope body by using the envelope body scanning command. According to the construction method of the torsion beam suspension movement mechanism with the side inclination working condition, the step of manually placing the side inclination working condition can be omitted, different suspension working conditions can be achieved more flexibly and more accurately, a part envelope body can be output, the repeated workload is reduced, and project development is accelerated.
Owner:SINO TRUK JINAN POWER CO LTD