Flexible suspension with nonlinear characteristics

FIELD: transport.

SUBSTANCE: invention relates to machine building, namely to flexible suspensions of vehicles with nonlinear characteristics. Flexible suspension of vehicle wheel contains link and resilient member. By its one end, the link is gimbal-mounted on vehicle body, and by its other end it is connected with wheel spindle. Top surface of the link is made flat. Resilient member is made in the form of slightly bent elongated plate. One end of the plate is gimbal-mounted on vehicle body in link swinging plane. The other end of the plate is rigidly connected with the link so that plate end adheres to flat surface of the link, and convex side of the plate interacts with flat surface of the link in burnishing mode during operation.

EFFECT: providing nonlinearity of vehicle suspension characteristic.

2 dwg

 

The invention relates to the field of engineering, namely the elastic suspensions of vehicles with non-linear elastic characteristic.

Known conical spring with nonlinear characteristic feature of which is that when loading the springs the greatest deformation, and hence the change of the elevation angle of the orbits of larger radius [Ponomarev S.D., Andreeva LE Calculation of elastic elements of machines and devices. - M.: Mashinostroenie, 1980, s, Fig].

The disadvantage of this non-linear elastic element is negligible nonlinearity characteristics.

Known leaf spring with a nonlinear characteristic, which contains a bundle of stapled sheets of the same width and different length, decreasing in one direction, and a thrust plate fixed through the sheet at their ends and with clearance [U.S. Pat. 1255781, IPC F16F 1/18. Leaf spring [Text] / Seacow, Egipet No. 3802965/25-28; Appl. 15.10.1984; publ. 07.09.1986 and others].

The disadvantages of this elastic element is a complex design, increased weight, dry milestone friction, the stepped elastic properties.

Closest to the proposed technical solution design is a diagram of the rear suspension containing a lever, one end of which is hinged to the vehicle body and the other United is with the axis of rotation of the wheel, an elastic element in the form of a cylindrical springs, whose ends are fixed to the vehicle body and the lever [the design of the car. Chassis / Under the General editorship Allerona. - M.: MAMI, 2000, s, Fig].

This pendant is simple in design, but has a linear characteristic and does not allow to realize the benefits of suspensions with nonlinear characteristics.

The objective of the invention is to provide a suspension with a nonlinear characteristic.

The problem is solved in that the elastic suspension of a wheel of a vehicle, containing a lever, one end of which is hinged to the vehicle body and the other connected with the axis of rotation of the wheel, and an elastic element, the ends of which are fixed to the vehicle body and the lever, the upper surface of the lever is made flat, and the elastic element is designed in the form of a slightly curved elongated plate, one end of which is hinged to the vehicle body in the plane of the swing lever, and the other is rigidly connected to the lever so that the end plate is adjacent to the flat surface of the lever, and the convex side of the plate in the process interacts with the planar surface of the lever in the mode of spinning.

Diagram of the rear suspension of the vehicle shown in figure 1.

The device consists of a lever 1, is which one end pivotally fixed to the body 2 of the vehicle, and the other is connected with the axis 3 of rotation of the wheel 4, and the elastic element 5 in the form of a bent plate, one end of which is pivotally fixed to the body 2 of the vehicle, and the other is rigidly connected to the lever 1 by means of screw connection or rivet 6. The proposed elastic suspension has a simple construction and provides a significant nonlinearity.

Elastic suspension works as follows.

When loading the suspension force F, the flexible plate 5 gently touching, interacts with the surface of the lever 1 in the mode of spinning. With increasing deformation of the plate 5 hardness of the elastic element gradually increases because there is less free length of the plate 5, and its characteristic receives a nonlinear view (figure 2).

The technical result is ensured by the nonlinear characteristic of the suspension of the vehicle.

Elastic wheel suspension of a vehicle, containing a lever, one end of which is hinged to the vehicle body and the other connected with the axis of rotation of the wheel, and an elastic element, the ends of which are fixed to the vehicle body and the lever, wherein the upper surface of the lever is made flat, and the elastic element is designed in the form of a slightly curved elongated plate, one end of which is hinged to the housing of the TRANS is Ortego means in the plane of swing of the lever, and the other is rigidly connected to the lever so that the end plate is adjacent to the flat surface of the lever, and the convex side of the plate in the process interacts with the planar surface of the lever in the mode of spinning.



 

Same patents:

Vibration absorber // 2179664
The invention relates to leaf springs with means for changing the characteristic of the spring

Vibratory bearing // 2426920

FIELD: machine building.

SUBSTANCE: vibratory bearing consists of flat flexible elements arranged in form of arc. The flexible element is made in form of convex bearing plate (1) whereto there are perpendicular hinged compensating plates (5) in deformed condition. Reaction forces from the side of compensating plates (5) are directed towards each other. Opposite ends of the plates are secured in stops. The stops are controlled with a travelling bush with a self-locking threaded part.

EFFECT: increased service life and control of vibratory bearing rigidity.

1 dwg

FIELD: machine building.

SUBSTANCE: spring plate of combined profile has thick central part with central platform, thin end parts of continuous profile and working parts positioned between central and end parts. The working parts are made out of combination of parts of continuous profile adjacent to the central part and of parts of alternate profile adjacent to the end parts. Distance between their dividing cross sections on both arms of the plate is equal to working length of the following spring of a short plate in a package. According to the second version an additional distinguished feature of the spring plate is like follows: working parts of continuous profile adjacent to the central part have thickness equal to thickness of the central part. The combined spring has several spring plates. Also, the root plate has a combined profile, while the last plate has an alternate profile. The spring plates contact each other along projection of the central platform and ends of the last plate of alternate profile. Thickness of the central part of the plate of combined profile is equal to thickness of the last plate of alternate profile. Few-plates trapezoidal spring consists of a package of overlaid plates of combined profile with step-by-step decreasing working length and of a following plate of alternate profile. All plates contact each other along whole plane of contact. A combined two-step spring includes a main spring and an additional spring set in a lower position. The main spring consists of plates of similar combined profile where distance between cross sections dividing working parts of continuous and alternate profile on both arms of the plate is equal to working length of the additional spring.

EFFECT: raised efficiency of metal use.

5 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: device consists of two flat, in essence, identical elastically deformed plates (12, 14) each with two opposite ends and of two thrust elements (16, 18) for connection of corresponding ends of two plates and for retaining plates in state of rest, in essence, parallel to each other without any mechanical connection between said plates. Each of the said two parts is designed to be attached to the corresponding plate; also two parts can considerably travel one relative to another in the direction perpendicular to two plates; at the same time the said parts perform extremely restricted travels one relative to another in two other directions of the rectangular system of coordinates. The device for positioning a back stop of a sheet-metal press consists of two fixed cheeks and of a movable support for the said stop; the device also consists of the two first guides attached to the cheeks parallel to direction XX', of the two second guides attached to each side of the support and parallel to direction RR' perpendicular to direction XX', of two coupling units each positioned between the first and the second guides. Additionally, the device consists of the first driving element to transfer the said unit relative to the first guide and of the second driving element to transfer the second guide relative to the said unit. Each connecting unit contains the said connecting device positioned between the first and the second driving elements so, that the plates of the connecting device are parallel to planes defined with directions XX' and RR'.

EFFECT: alignment of connected mechanisms with high precision.

12 cl, 10 dwg

Bow spring // 2364772

FIELD: mechanical engineering.

SUBSTANCE: invention refers to resilient elements of blade gasodynamic bearings used in small-sized high-speed turbomachines. The spring cut out from one plate contains multiple elementary arc-shaped springs (2) and (3). Springs (2) and (3) are located alternatively. Short springs (2) have equal length between reference edges. Long springs (3) also have equal length. The elementary springs (2) and (3) are interconnected by narrow bonding strips (8). Variable dependence of bow spring total tension on load is achieved due to difference in lengths for springs (2) and (3). Variable tension of bow spring in direction of elementary springs location is achieved due to variable width for springs (2) and/or variable width for springs (3).

EFFECT: reduction of shaft and bearing friction surfaces deterioration at start and stop of turbine rotor, reduction of rotor radial shift in bearing under action of heavy load and providing high limit carrying capacity of bearing at high rotor speed, providing assignment of various maximum inflection values to elementary springs and providing ease of bow spring manufacturing.

7 cl, 12 dwg

FIELD: transport.

SUBSTANCE: laminated spring support contains pair of laminated spring packets that are directed opposite to each other on floating and fixed support elements with certain gap for coned part of fixed support element. Each pair of packets is secured individually by fastening elements to floating support.

EFFECT: securing even rigidity during spring support work part deformation and increase of reliability of laminated spring support fastening.

4 dwg

FIELD: mechanical engineering; protection of technological equipment against vibrations.

SUBSTANCE: proposed spring-type vibration insulator has base, strut, spring-type flexible member and bearing unit. Spring-type flexible member has varying section in mutually perpendicular planes. Cross-sectional area increases from bearing unit on which object to be vibration insulated is secured towards strut where other end of flexible member is rigidly secured.

EFFECT: enhanced efficiency of vibration insulation due to equifrequency.

1 dwg

FIELD: mechanical engineering; protection of technological equipment against vibrations.

SUBSTANCE: proposed spring-type vibration insulator has base, strut, spring-type flexible member and bearing units. Flexible member has section varying in plane passing through its axis of symmetry perpendicularly to base. Cross-sectional area increases from bearing platform towards termination of flexible member. Bearing platform is made in form of closed profile embracing at spaced relation end of flexible member to ensure its motion.

EFFECT: enhanced efficiency of vibration insulation due to equifrequency.

3 dwg

FIELD: mechanical engineering.

SUBSTANCE: compound spring support comprises the stack of springs, means for locking the spring made of through opening in the basic inner part of the spring with corresponding pin and locking the sheet springs against movement or rotation in the transverse plane of the support, members for fastening the stack of springs, and units for securing the compound spring support. The support is made of at least two individual springs which are diverging from the basic (inner) ends within the angle from 0° to 180°. The means for locking the springs and the spring support is made of a nonsolid sleeve provided with openings for the pin on its base and grooves on the cylindrical part for fitting the stack of the springs. The fastening member of the stack of the springs comprises two flange bushings. The inner bushing is provided with the thread on the outer surface, and the outer bushing is provided with a threaded opening. The fastening member also has two dummy hollows for the pins which define a cylindrical body provided with outer ring space for nonsolid sleeve which has inner ends of the springs with pins. The first ends of the pins are set into the openings in the sleeve base. The second ends are set into the dummy openings in the outer flange bushing . The member for fastening the support to the object to be insulated is made of a threaded opening provided in the inner flange bushing. The member for fastening the working outer section to the frame is composed of two ring segments interconnected trough fastening members.

EFFECT: expanded functional capabilities.

1 dwg

The invention relates to the field of engineering, namely, the leaf springs of motor vehicles

The invention relates to the field of General engineering, in particular to methods of forming leaf springs

Oversnow vehicle // 2256581

FIELD: transport engineering.

SUBSTANCE: invention relates to suspension of propulsion unit of oversnow vehicle. Axle 5 of motor-in-wheel 4 is coupled with body 1 by two pairs of telescopic shock absorbers 6,7 hinge-connected with body and arranged at angle not less than 90° relative to each other. Front pair of shock absorbers 6 is rigidly connected with axle 5 of motor-in-wheel to form rocking levers. Rear pair of shock absorbers 7 is hinge-connected with axle 5. Upper hinge joints 8 of rear pair of shock absorbers are arranged on one axle 9.

EFFECT: enhanced conditions of operation.

1 dwg

Oversnow vehicle // 2256581

FIELD: transport engineering.

SUBSTANCE: invention relates to suspension of propulsion unit of oversnow vehicle. Axle 5 of motor-in-wheel 4 is coupled with body 1 by two pairs of telescopic shock absorbers 6,7 hinge-connected with body and arranged at angle not less than 90° relative to each other. Front pair of shock absorbers 6 is rigidly connected with axle 5 of motor-in-wheel to form rocking levers. Rear pair of shock absorbers 7 is hinge-connected with axle 5. Upper hinge joints 8 of rear pair of shock absorbers are arranged on one axle 9.

EFFECT: enhanced conditions of operation.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building, namely to flexible suspensions of vehicles with nonlinear characteristics. Flexible suspension of vehicle wheel contains link and resilient member. By its one end, the link is gimbal-mounted on vehicle body, and by its other end it is connected with wheel spindle. Top surface of the link is made flat. Resilient member is made in the form of slightly bent elongated plate. One end of the plate is gimbal-mounted on vehicle body in link swinging plane. The other end of the plate is rigidly connected with the link so that plate end adheres to flat surface of the link, and convex side of the plate interacts with flat surface of the link in burnishing mode during operation.

EFFECT: providing nonlinearity of vehicle suspension characteristic.

2 dwg

FIELD: transport.

SUBSTANCE: invention relates to machine building, particularly, to automotive resilient suspensions with nonlinear resilient characteristics. Proposed suspension comprises lever, resilient element and extra resilient element. One end of said lever is articulated with carrier body while is connected with the wheel axle. Resilient element is composed of slightly bent long plate with one end articulated with carrier body in the lever swing plane. Lever opposite end is rigidly coupled with said lever so that plate end abuts on the lever flat surface while the plate convex side in operation interacts with the lever flat plane in run-in mode. Extra resilient element is composed of slightly bent long plate with one end articulated with the lever. Opposite end of the lever is rigidly secured to carrier body to make plate end abuts on carrier body. Plate convex side interacts with the body flat surface in run-in mode.

EFFECT: decreased load at suspension resilient element at puncture and higher stiffness at release.

3 dwg

FIELD: mechanical engineering.

SUBSTANCE: compound spring support comprises the stack of springs, means for locking the spring made of through opening in the basic inner part of the spring with corresponding pin and locking the sheet springs against movement or rotation in the transverse plane of the support, members for fastening the stack of springs, and units for securing the compound spring support. The support is made of at least two individual springs which are diverging from the basic (inner) ends within the angle from 0° to 180°. The means for locking the springs and the spring support is made of a nonsolid sleeve provided with openings for the pin on its base and grooves on the cylindrical part for fitting the stack of the springs. The fastening member of the stack of the springs comprises two flange bushings. The inner bushing is provided with the thread on the outer surface, and the outer bushing is provided with a threaded opening. The fastening member also has two dummy hollows for the pins which define a cylindrical body provided with outer ring space for nonsolid sleeve which has inner ends of the springs with pins. The first ends of the pins are set into the openings in the sleeve base. The second ends are set into the dummy openings in the outer flange bushing . The member for fastening the support to the object to be insulated is made of a threaded opening provided in the inner flange bushing. The member for fastening the working outer section to the frame is composed of two ring segments interconnected trough fastening members.

EFFECT: expanded functional capabilities.

1 dwg

FIELD: mechanical engineering; protection of technological equipment against vibrations.

SUBSTANCE: proposed spring-type vibration insulator has base, strut, spring-type flexible member and bearing units. Flexible member has section varying in plane passing through its axis of symmetry perpendicularly to base. Cross-sectional area increases from bearing platform towards termination of flexible member. Bearing platform is made in form of closed profile embracing at spaced relation end of flexible member to ensure its motion.

EFFECT: enhanced efficiency of vibration insulation due to equifrequency.

3 dwg

FIELD: mechanical engineering; protection of technological equipment against vibrations.

SUBSTANCE: proposed spring-type vibration insulator has base, strut, spring-type flexible member and bearing unit. Spring-type flexible member has varying section in mutually perpendicular planes. Cross-sectional area increases from bearing unit on which object to be vibration insulated is secured towards strut where other end of flexible member is rigidly secured.

EFFECT: enhanced efficiency of vibration insulation due to equifrequency.

1 dwg

FIELD: transport.

SUBSTANCE: laminated spring support contains pair of laminated spring packets that are directed opposite to each other on floating and fixed support elements with certain gap for coned part of fixed support element. Each pair of packets is secured individually by fastening elements to floating support.

EFFECT: securing even rigidity during spring support work part deformation and increase of reliability of laminated spring support fastening.

4 dwg

Bow spring // 2364772

FIELD: mechanical engineering.

SUBSTANCE: invention refers to resilient elements of blade gasodynamic bearings used in small-sized high-speed turbomachines. The spring cut out from one plate contains multiple elementary arc-shaped springs (2) and (3). Springs (2) and (3) are located alternatively. Short springs (2) have equal length between reference edges. Long springs (3) also have equal length. The elementary springs (2) and (3) are interconnected by narrow bonding strips (8). Variable dependence of bow spring total tension on load is achieved due to difference in lengths for springs (2) and (3). Variable tension of bow spring in direction of elementary springs location is achieved due to variable width for springs (2) and/or variable width for springs (3).

EFFECT: reduction of shaft and bearing friction surfaces deterioration at start and stop of turbine rotor, reduction of rotor radial shift in bearing under action of heavy load and providing high limit carrying capacity of bearing at high rotor speed, providing assignment of various maximum inflection values to elementary springs and providing ease of bow spring manufacturing.

7 cl, 12 dwg

FIELD: machine building.

SUBSTANCE: device consists of two flat, in essence, identical elastically deformed plates (12, 14) each with two opposite ends and of two thrust elements (16, 18) for connection of corresponding ends of two plates and for retaining plates in state of rest, in essence, parallel to each other without any mechanical connection between said plates. Each of the said two parts is designed to be attached to the corresponding plate; also two parts can considerably travel one relative to another in the direction perpendicular to two plates; at the same time the said parts perform extremely restricted travels one relative to another in two other directions of the rectangular system of coordinates. The device for positioning a back stop of a sheet-metal press consists of two fixed cheeks and of a movable support for the said stop; the device also consists of the two first guides attached to the cheeks parallel to direction XX', of the two second guides attached to each side of the support and parallel to direction RR' perpendicular to direction XX', of two coupling units each positioned between the first and the second guides. Additionally, the device consists of the first driving element to transfer the said unit relative to the first guide and of the second driving element to transfer the second guide relative to the said unit. Each connecting unit contains the said connecting device positioned between the first and the second driving elements so, that the plates of the connecting device are parallel to planes defined with directions XX' and RR'.

EFFECT: alignment of connected mechanisms with high precision.

12 cl, 10 dwg

Up!