94results about "Belleville-type springs" patented technology

A bicycle seat suspension can include one or more movable body members. The one or more movable body members can be configured to be operatively connected to a bicycle saddle. The one or more movable body members can be configured to change configuration when a load is applied to the bicycle saddle. The bicycle seat suspension can also include a vibration isolator. The vibration isolator can be configured to exhibit a non-linear stiffness profile including a region of quasi-zero stiffness. The vibration isolator can be operatively positioned such that, when the one or more movable body members change configuration responsive to a load being applied to the bicycle saddle, the one or more movable body members can engage the vibration isolator. As a result, the vibration isolator can isolate a person seated on the bicycle saddle from vibrations transferred through the bicycle saddle.

SOLUTION: A plate spring 28 includes a disc member 30 and a plurality of claws 32 provided on the disc member, positioned between an outer peripheral end 30t2 of the disc member and an inner peripheral end 30t1 of the disc member, and arranged along a circumferential direction CD of the disc member, wherein each of the plurality of claws extends along a radial direction RD of the disc member and warps in a thickness direction TD of the disc member.SELECTED DRAWING: Figure 3

A locking washer (10) for a torsional damper (30), wherein the locking washer (10) has a corrugated shape in the circumferential direction, which is pronounced in the axial direction to reduce axial play of components of the torsional damper (30).

This pressurization mechanism comprises: a reaction force generation body that is provided between a first member and a second member, which face each other in a first direction and for which the distance therebetween changes, and that elastically deforms following displacement of the first member or the second member; a first rigid body plate that is positioned closer to the second member than the reaction force generation body; and a first pressure equalization layer that is sandwiched between the first rigid body plate and the second member in the first direction. The reaction force generation body is partially in contact with a surface of the first rigid body plate that faces the first-member side. The first pressure equalization layer disperses and transmits, to the second member in a direction intersecting the first direction, a load that is partially applied to the first rigid body plate from the reaction force generation body.

A pre-tightening disc spring that includes a disc-shaped body formed with a central hole and having opposite first and second contact sides in a thickness direction. The disc-shaped body being a rotation solid formed by rotating a radial section about a central rotation axis by 360 degrees The central rotation axis coinciding with a central axis of the central hole The radial section having a first line segment and an opposing second line segment The first contact side being defined by rotating the first line segment, the second contact side being defined by rotating the second line segment, and a medium-diameter axis being defined to passing a mid-point of the second line segment and extending normally relative to the second line segment The the radial section being mirror-symmetrical relative to the medium-diameter axis.

The invention relates to an electric machine having a rotor shaft (4), a floating bearing (1) and a bearing cover (3), the floating bearing (1) being provided for rotatably supporting the rotor shaft (4), the floating bearing (1) having an inner ring and an outer ring, the outer ring of the floating bearing being received in a bearing receptacle formed in the bearing cover (3), the inner ring being mounted on the rotor shaft (4), and the bearing cover (3) being provided with an outer ring. The elastic gasket (2) is arranged between the outer ring and the bearing cover in the axial direction, and the elastic gasket (2) is provided with a coating at least on a first surface area and a second surface area.

The utility model discloses a curved surface belleville spring, the upper end surface and the lower end surface of the cross section of a belleville spring body are wave-shaped, the upper end surface of the cross section of the belleville spring body is provided with an odd number A of wave crests, wave troughs and the wave crests on the cross section of the belleville spring body are arc-shaped, and the radian radius R0 of the wave crests and the radian radius R0 of the wave troughs are the same. The ratio of the maximum compression amount h0 of the belleville spring body to the thickness t of the belleville spring body is larger than or equal to 1.6 and smaller than or equal to 3, the ratio of the outer diameter phi D to the inner diameter phi d of the belleville spring body 1 is larger than or equal to 1.8 and smaller than or equal to 3, and the ratio of the arc radius R0 of the wave, the peak and the trough to the thickness t of the belleville spring body is larger than or equal to 6 and smaller than or equal to 10. The stress distribution and the bearing characteristic are optimized through the structural design of the curved surface belleville spring, the stress concentration of the belleville spring is reduced, and the buffering capacity and the fatigue resistance of the spring are improved; and after the compression amount of the curved surface belleville spring reaches a certain amount, the rigidity tends to be constant rigidity, and stable pre-tightening force can be provided.

SOLUTION: A plate spring 28 includes a disc member 30 and a plurality of claws 32 provided on the disc member, positioned between an outer peripheral end 30t2 of the disc member and an inner peripheral end 30t1 of the disc member, and arranged along a circumferential direction CD of the disc member, wherein each of the plurality of claws extends along a radial direction RD of the disc member and warps in a thickness direction TD of the disc member.SELECTED DRAWING: Figure 3

A measuring head 80 includes a rocking fulcrum member configured to support an arm member 83 having a tip end to which a contactor 85 is attached, the measuring head 80 detecting an amount of movement of the contactor 85 by detecting an amount of movement of the arm member 83 making a seesaw motion, in which the rocking fulcrum member is configured as a cross-shaped spring 10 with a cross-shaped thin plate part 10-1, the cross-shaped spring 10 having a hole to penetrate a center part 10-3 of the cross-shaped spring 10. With the measuring head, the same deformation can be obtained in a measuring direction with a smaller load, the torsional load in the other direction has sufficient rigidity, the fulcrum center is not shifted, and the repetition accuracy is improved.

The friction clutch device 7 includes a retaining ring 32 fitted onto the second member 102, a pressure plate 36 facing the side surface on one axial direction of the friction plate which is located furthest on the axial direction out of the first friction plate 45 and the second friction plate 46 and fitted onto the second member 102 so as to be movable toward and away from the friction plate located furthest on the axial direction, an elastic member 37 sandwiched between the retaining ring 32 and the pressure plate 36 and elastically urging the pressure plate 36 toward the other axial direction, and a spacer 33 and a snap ring 34 which are engaged with the engaging groove 15 of the second member 102 and which prevent the retaining ring 32 from being displaced towards one axial direction.

To provide a braking device which is excellent in energy absorption performance, can be repeatedly used, and can shorten a length in an action direction of external force.SOLUTION: A braking device 1 for absorbing energy generated by external force includes: a pair of sliders 2, 2 moving in an action direction of the external force; a spring 3 interposed between the pair of sliders and having an extension / contraction direction almost orthogonal to the action direction; a core material 4 inserted into a hollow 3a of the spring and allowing the pair of sliders to move; and a body 5 for fixing both ends of the core material and controlling a moving direction of the slider. When the external force is applied to the slider and the slider is moved to the action direction, a gap between the pair of sliders is narrowed accordingly, and the spring is contracted, and at the same time, energy absorption by sliding is performed between the body and the slider and between the spring and the slider.SELECTED DRAWING: Figure 1

To suppress wear of a portion coming into contact with a disc spring.SOLUTION: A power transmission device includes a first rotary member, a second rotary member, a friction member, and a biasing mechanism. The second rotary member is disposed so as to be rotatable relative to the first rotary member. The friction member is disposed between the first rotary member and the second rotary member in an axial direction. The biasing mechanism biases the friction member toward the first rotary member or the second rotary member. The biasing mechanism includes: a first disc spring; and a second disc spring stacked on the first disc spring in series.SELECTED DRAWING: Figure 2

Linear actuator, comprising a push tube (50), a joint head (51) and a damping system (10), which comprises: - a first assembly (20) with a first axial stop surface (20a) and a second axial stop surface (20b), - a resilient spring arrangement (30) which, in an initial position, abuts axially against the first and second stop surfaces (20a, 20b) under a predetermined preload, and - a second assembly (40) which is mounted so as to be axially displaceable relative to the first assembly (20) and is designed to lift the spring arrangement (30) from the first stop surface (20a) or from the second stop surface (20b) during an axial movement relative to the first assembly (20), characterized in that the damping system (10) has a housing (21) which is rigidly connected to the push tube (50) and forms at least part of the first assembly (20), and the joint head (51) forms at least part of the second assembly (40) or is at least rigidly connected to the second assembly (40).

A support mechanism (30) for rotatably supporting both axial end portions of a screw shaft (21) comprises: a bearing unit (41) having a moving-side bearing housing (51) and a pair of angular ball bearings (33B); a support base (43); and a housing position adjustment mechanism (44) disposed between the bearing unit (41) and the support base (43). The housing position adjustment mechanism (44) comprises: a support-base-side member (61) provided on the support base (43) side; a bearing-housing-side member (62) provided on the bearing housing (51) side, and capable of relative movement in the axial direction with respect to the support-base-side member (61); a working fluid accommodated in a pressure chamber (66) formed between the support-base-side member (61) and the bearing-housing-side member (62), in a storage chamber (71) formed in either the support-base-side member or the bearing-housing-side member, and in an orifice (72) establishing communication between the pressure chamber (66) and the storage chamber (71); a disc spring (80) disposed inside the pressure chamber (66) in a state compressed between the opposing axial end surfaces of the support-base-side member (61) and the bearing-housing-side member (62); and a hollow member (90) accommodated in the storage chamber (71). Consequently, the support rigidity in the axial direction can be continuously and stably maintained, even if the axial length of a screw shaft or a rotary shaft changes owing to the effect of heat.

To provide a more robust load spring washer to allow greater load recovery.SOLUTION: Provided herein is a load spring washer configured for use with a medical injection device, having: a main body having a proximal surface and a distal surface; and one or more protrusions extending proximally away from the proximal surface of the main body.SELECTED DRAWING: Figure 2

The application provides a superimposed pair of wave springs, comprising: a plurality of superimposed layer wave springs, each of which is spirally curved along an axial direction, and each layer wave is arranged in a superimposed manner; and at least one connecting spring, which connects two adjacent superimposed layer wave springs arranged in a superimposed manner to make the first wave valley and the second wave peak of the two adjacent superimposed layer wave springs abut against each other, and the first wave peak and the second wave valley are arranged in an upper-lower manner. The inventor ingeniously connects the superimposed layer wave springs arranged in an upper-lower manner through the connecting spring, and makes the two arranged in a pair of abutment, so that the wave spring has better verticality, greater elasticity and longer service life. In addition, the rigidity of the wave spring can be improved by increasing the layer number of the superimposed layer wave spring under the condition that the overall material thickness is unchanged, and various wave springs with different rigidity can be produced by changing the layer number of the superimposed layer wave spring. In addition, the wave spring can form a variable rigidity characteristic by changing the layer number of each superimposed layer.

The utility model discloses a wave spring for pre-tightening a bearing, which comprises a top gasket, the bottom of the top gasket is fixedly connected with a wave spring elastic sheet mechanism, the bottom of the wave spring elastic sheet mechanism is fixedly connected with a bottom gasket, the top of the top gasket is provided with a plurality of groups of slots, and inserting shafts are arranged right below the slots. The wave spring with four waves has small working stress, the fatigue life of the wave spring is prolonged, the problem of fatigue fracture of the wave spring in a severe application scene is avoided, the ring width of the wave washer is set to be of a narrow ring structure, the ring width of the wave washer is smaller than that of the wave spring under the technical condition of JB / T 7590-2005, and the service life of the wave spring is prolonged. Therefore, the wave crest of the wave washer can be in large-area contact with the bearing outer ring, and after the wave washer is pressed by axial force, the wave crest of the wave washer is still in large-area contact with the end face of the bearing outer ring, so that the contact stress is reduced, the problem that the contact part is greatly abraded is solved, and meanwhile, the service life of the bearing is also prolonged.

The utility model discloses a garbage can cover plate traction damper, belongs to the technical field of garbage cans, and solves the problems that when a support of an existing device is adjusted, the support needs to be detached, the operation mode is troublesome, and a damper and a support occupy a large space in a garbage can. A volute spiral spring is arranged in the storage box, a through hole is formed in the middle of the cambered surface of the storage box, one end of the volute spiral spring penetrates through the through hole, extends to the outside of the storage box and is connected with a connector installed on a garbage can cover plate, and an adjusting assembly for adjusting the screwing degree of the volute spiral spring is arranged on the front side of the storage box. The winding column is driven by the handle to rotate, the volute spiral spring can be wound on the outer surface of the volute spiral spring, the elastic force of winding of the volute spiral spring can be adjusted, then the force and duration when the cover plate is closed can be adjusted, the adjusting mode is simple and convenient, and the storage box is small in size and small in occupied space.

Multi-plate shift element (LSE) for a drive device of a motor vehicle, comprising a plurality of first plates (LM1) connected to a first plate carrier (LT1) and axially displaceable, and a plurality of second plates (LM2) connected to a second plate carrier (LT2) and axially displaceable, wherein the first plates (LM1) and the second plates (LM2) are arranged alternately in the axial direction, wherein the plates (LM1, LM2) can be brought into frictional engagement with one another, wherein a wave spring (WF) is arranged between each two first plates (LM1), wherein each wave spring (WF) is arranged so as to enclose one of the second plates (LM2) or is enclosed by one of the second plates (LM2), wherein at least one of the wave springs (WF) is constructed with a corrugation (aW) formed in the axial direction, wherein the wave spring (WF) is designed as an open wave spring with a first butt end (SE1) and a second butt end (SE2). is designed,wherein the wave spring (WF) has at least a first circumferential section (UA1), a second circumferential section (UA2) and a third circumferential section (UA3) in the circumferential direction, wherein the first circumferential section (UA1) comprises the first butt end (SE1), the second circumferential section (UA2) comprises the second butt end (SE2) and the third circumferential section (UA3) circumferentially connects the first and the second circumferential section (UA1, UA2) to one another, wherein the first and the second circumferential section (UA1, UA2), - a radial extension (rE) different from the third circumferential section (UA3) and / or - has a corrugation (aW_1_2) formed in the axial direction with a wavelength (WL_1_2) deviating from the third circumferential section (UA3) in the circumferential direction.

The invention relates to a high-torque adjustable bearing which comprises an outer ring and an inner ring, a plurality of rolling bodies are arranged between assembly grooves of the outer ring and the inner ring, the rolling bodies are evenly distributed through a retainer arranged between the outer ring and the inner ring, and a sealing ring is further connected between the outer ring and the inner ring. The inner ring is provided with an extending part, a compressible spring and an adjusting piece are arranged on the extending part, the far end of the spring abuts against one face of the friction plate, and the other face of the friction plate abuts against the end face of the outer ring; the extension part is arranged on the inner ring, the threads are arranged on the extension part, and the torsion adjusting precision can be improved through threaded connection of the adjusting part. By precisely and linearly controlling the pressure applied to the friction plate, the output torque of the bearing can be continuously adjusted in a wide range from 0.2 Nm to 0.8 Nm with high precision.

Provided is a flow path control device which includes a fourth on-off valve 304 for opening or closing a fourth communication path through which oil flows from a jack chamber to a reservoir chamber, a third on-off valve 303 which controls the opening and closing of the fourth on-off valve 304 by transiting between a first state in which the fourth on-off valve 304 is moved to a position where the fourth communication path is closed and a second state in which the fourth on-off valve 304 is moved to a position where the fourth communication path is opened, and a push rod 316 which includes a push rod main body 316a of which one end is pressed and moved to the other side and the other end causes the third on-off valve 303 to transition from the first state to the second state and a washer 700 which protrudes radially outward of the push rod main body 316a from an outer peripheral surface of the push rod main body 316a so as to receive pressure of oil flowing from the jack chamber to the reservoir chamber.

In one aspect, a vibration damper (26; 26a; 26b) includes first and second diaphragm flexures (48a; 48b; 48c) defining a cavity (76) therebetween, a damping material (50, 50a, 50b) disposed in the cavity (76), and a mass (46, 46b, 46c) connecting the first and second diaphragm flexures (48a; 48b; 48c). In another aspect, an assembly includes a load cell body (32) having two opposed sides, a first vibration damper (26a, 26b) operably connected to the load cell body (32) at the first side and a second vibration damper (26b) operably connected to the load cell body (32). In yet other aspects, a machine (20) and method are used to test a tire and wheel assembly (24), wherein the machine (20) includes a road surface simulator (14), a spindle hub (34), a spindle housing (28), a frame (52), a spindle support (56), and a damper assembly (26, 26a, 26b, 60). The damper assembly (26, 26a, 26b, 26c, 60) is joined to the spindle housing (28) or to the spindle support (56) and is configured to attenuate forces or motions of the spindle hub (34) or the spindle support (56).

The present invention relates to a damping device with an adjustable elastic constant, the damping device comprising a membrane spring and an adjustment system for adjusting the elastic constant of the membrane spring. The membrane spring comprises at least one circular bending crown with at least two annular bending arms, one continuous circular crown adjacent to and concentric with the circular bending crown, and one groove associated with each annular bending arm. Each groove is adjacent to and concentric with the annular bending arm along at least a portion of its length. The adjustment system further comprises a fixation element inserted into each of the grooves and configured to move along each corresponding groove to change the portion of the length of the annular bending arm adjacent the groove, which flexes to change the elastic constant of the damping device.

The application relates to a high-toughness forged disc spring and a manufacturing process, and relates to the technical field of disc springs. The disc spring comprises a body, the body comprises a first section, a second section and a third section arranged in sequence from top to bottom, the second section comprises mutually parallel inner line two and outer line two, the inner line is an inner generatrix of the body, and the outer line is an outer generatrix of the body, the first section comprises outer line one, the outer line one and the outer line two form an included angle one, and the third section comprises inner line three, and the inner line three and the inner line two form an included angle two. The application has the advantages that the force value change is discontinuous.

Provided is a method of manufacturing a spring for inspecting the stress distribution of the spring under load. The method for manufacturing a spring (1) includes the steps of applying a load to the spring (1), measuring the stress of the spring (1) under the load, and releasing the load applied to the spring (1), the measuring the stress of the spring (1) being made by measuring the stress on the surface of the active part of the spring (1) using X-ray diffraction with the cosα method, and the method further including the step of determining whether the magnitude of the stress of the spring (1) meets a criterion.

The application provides a convex closed wave spring and a preparation method thereof. The spring sheet of the convex closed wave spring is in a closed circular shape and has a plurality of wave crests and troughs connected in sequence, and a spherical convex structure is further arranged on the wave crest and trough. The preparation method of the convex closed wave spring comprises the following steps: a) material selection and preparation, b) blanking, c) cutting, d) wave forming, e) boss forming, f) turning inner and outer circles, and g) aging and shaping. The application adopts linear cutting or laser cutting for blanking, reserves a shrinkage allowance for subsequent forming, ensures compensation of the diameter size of the inner and outer circles, forms the wave shape and the convex structure in two steps through a mold, ensures the radial position accuracy of the bulge, avoids changes of the convex position caused by the material flowing to the radial center direction when the convex size is formed into a wave shape, and avoids cracking phenomena at the convex position, shrinkage defects and bulge deviation phenomena near the convex position caused by poor material fluidity.