135results 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.

To provide a highly reliable vibration isolation device capable of isolating vibration in various direction inexpensively over a wide range through simple adjustment and capable of easily controlling vibration absorption performance and damping performance.SOLUTION: A vibration isolation device includes: a bolt; a first disc spring having a first insertion hole, a first inner peripheral part and a first outer peripheral part; a second disc spring having a second insertion hole, a second inner peripheral part and a second outer peripheral part; a sleeve including a pair of end surfaces through which a bolt is inserted, that oppose to each other in the axial direction and on which the first inner peripheral part and the second inner peripheral part are nipped, respectively by using a fastening tool; and a fixation plate in which the first outer peripheral part and the second outer peripheral part are fixed in an overlapped state and a displacement region of the bolt and the sleeve is opened. The first disc spring has a plurality of first vibration isolation bodies, and the second disc spring has a plurality of second vibration isolation bodies. When vibration is input to the bolt via a vibration isolated member, each of the first vibration isolation bodies and each of the second vibration isolation bodies absorb the vibration and damp the vibration, respectively at positions apart from the sleeve.SELECTED DRAWING: Figure 2

An annular cantilever beam spring is capable of exhibiting low friction and hysteresis and stiffness and specifically stiffness / volume far exceeding currently available COTS springs. The spring includes first and second sets of N stand-offs evenly positioned around opposing top and bottom surfaces of a flat annular beam at 360 / N degree intervals and angularly offset with respect to each other by 360 / 2N degrees such that each said stand-off is evenly spaced between adjacent pairs of stand-offs on the opposing surface. The first and second sets of stand-offs are responsive to opposing axial loads to deflect the flat annular beam axially at each stand-off in opposing directions to induce a curvature to the annular beam and store energy in the beam. The spring stiffness is determined by the elastic material properties of the flat annular beam, not the initial geometry as is common with the COTS springs.

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 support mechanism (30) for rotatably supporting both axial ends of a screw shaft (21) is provided with: a bearing unit (41) provided with a moving-side bearing housing (51) and a pair of angular ball bearings (33B); a support table (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) has: a support table-side member (61) provided on the support table (43) side; a bearing housing-side member (62) provided on the bearing housing (51) side and capable of moving relative to the support base-side member (61) in the axial direction; a working fluid housed in a pressure chamber (66) formed between the support table-side member (61) and the bearing housing-side member (62), a reservoir chamber (71) formed in either the support table-side member or the bearing housing-side member, and a damping hole (72) connecting the pressure chamber (66) and the reservoir chamber (71); a belleville spring (80) disposed in a compressed state within the pressure chamber (66) between opposing axial end surfaces of the support table-side member (61) and the bearing housing-side member (62); and a hollow member (90) housed in the storage chamber (71). Thus, even if the axial lengths of the screw shaft and the rotating shaft change due to the influence of heat, the axial support rigidity can be continuously and stably maintained.

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).

The utility model discloses a belleville spring set with a lubricating film and a quasi-zero stiffness combined spring using the belleville spring set with the lubricating film. The lubricating film can reduce the friction between the overlapped contact surfaces of the disc springs through the lubricating effect of the lubricating film, the dynamic stiffness of the disc spring group device under the micro-vibration condition is reduced, and the vibration isolation system can obtain a better vibration control effect. The spiral spring is installed in the outer cylinder, and the belleville spring set with the lubricating film is installed on the outer cylinder. When the guide column slides, the spiral spring in the outer cylinder and the belleville spring set on the guide column can be compressed at the same time, the negative stiffness characteristic can be obtained by adopting different overlapping and involution combinations of the belleville spring, and the spiral spring is further combined to achieve the high-performance vibration reduction, vibration isolation and vibration double-control effect of the quasi-zero stiffness principle.

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.

The invention relates to a high-toughness forged and pressed belleville spring and a manufacturing process, and relates to the technical field of belleville springs.The high-toughness forged and pressed belleville spring comprises a body, the body comprises a first section, a second section and a third section which are sequentially arranged from top to bottom, the second section comprises a second inner line and a second outer line which are parallel to each other, the inner line is an inner bus of the body, and the outer line is an outer bus of the body; the first section comprises an outer line I, extension lines of the outer line I and the outer line II form an included angle I, the third section comprises an inner line III, and extension lines of the inner line III and the inner line II form an included angle II. The method has the advantage that the force value change can be discontinuous.

The invention relates to an electromagnetic actuator, which is designed to be connected to a backside of a plate like structure and which comprises an annular coil arrangement and a magnet system being designed to generate a magnetic field transverse to the annular coil arrangement. The annular coil arrangement and the magnet system are connected to each other by a plurality of springs, which are arranged inside of the annular coil arrangement.

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 present disclosure provides a load spring washer configured for use with a medical injection device, the load spring washer having a body and one or more protrusions, the body having a proximal surface and a distal surface, and the one or more protrusions extending proximally away from the proximal surface of the body.

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.

The utility model relates to a high heat dissipation diaphragm spring which comprises a diaphragm spring body, a plurality of radial grooves are formed in the surface of the diaphragm spring body in an array mode with a center hole of the diaphragm spring body as the center, and the end, away from the center hole, of each radial groove is communicated with a stress hole of the diaphragm spring body. A plurality of radial grooves are formed in the diaphragm spring body, heat conduction columns are embedded in the radial grooves, a plurality of circles of heat dissipation blocks are embedded in the positions, located between every two adjacent radial grooves, of the surfaces of the two sides of the diaphragm spring body in a circumferential array mode with the center hole as the circle center, the two ends of each heat dissipation block are connected with the corresponding heat conduction columns, and heat dissipation holes are formed in the heat dissipation blocks. The diaphragm spring has the advantages that when the diaphragm spring body generates heat, the heat can be transmitted through the heat conduction column, so that the heat can be rapidly transmitted from the center to the outer side, the heat is prevented from being gathered inside, and the heat in the heat conduction column can be rapidly extracted through the heat dissipation block connected with the heat conduction column.

The present disclosure provides a measuring head (80) that detects the amount of movement of a contact (85) by detecting the amount of movement of the arm member (83) that performs a seesaw-type movement by supporting an arm member (83) having a contact (85) attached to the tip thereof by means of a swing fulcrum member configured as a cross-shaped spring (10) from a cross-shaped thin plate section (10-1), the swing fulcrum member being configured as a cross-shaped thin plate section (10-1), and the swing fulcrum member being configured as a cross-shaped thin plate section (10-1), and the swing fulcrum member being configured as a cross-shaped spring (10) from a cross-shaped thin plate section (10-1). The cross spring (10) is provided with a hole in a manner of penetrating through the central part (10-3) of the cross spring (10), so that the same deformation can be obtained by a smaller load in the measurement direction, the cross spring has sufficient rigidity aiming at the torsional load in the other direction, the center of a fulcrum does not shift, and the repetition accuracy is also improved.

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 present disclosure relates to a diaphragm spring (1) for a torque limiter, comprising a body (10) having an annular shape about a central axis (X) and comprising an inner side wall (12) and an outer side wall (13), the inner side wall (12) and the outer side wall (13) being offset in the direction of the central axis (X), where the body (10) comprises a heterogeneous region (11). The present disclosure also relates to a torque limiter comprising such a diaphragm spring (1).