457 results about "Leaf spring" patented technology

A roller spring member for an overrunning clutch is provided. A first bridge connecting portion couples a bridge to a first spring central location of a first leaf spring. A second bridge connecting portion couples the bridge to a second spring central location of a second leaf. The roller spring member further includes at least one of, each of the first bridge connecting portion and the second bridge connecting portion including an undercut radius section, each of the first leaf spring and the second leaf spring being tapering from an associated one of the first spring central location of the first leaf spring and the second leaf spring central location of the second leaf spring to a first end and a second end, and each of the first leaf spring and the second leaf spring including a straight portion proximate the central locations.

A kind of quasi-zero stiffness vibration isolation device based on negative stiffness generated by rotatable leaf spring, quasi-zero stiffness vibration isolation device includes positive stiffness component, negative stiffness component and height adjustment pad;Positive stiffness component, negative stiffness component and height adjustment pad are all installed in outer sleeve, and the bottom surface of positive stiffness component extends from the bottom of outer sleeve, beyond the bottom surface of outer sleeve, forms height difference on level;Negative stiffness component is located above positive stiffness component, and upper end surface extends the upper end surface of outer sleeve, outer sleeve is installed in floating plate, and moves up and down with floating plate together;The negative stiffness component is the negative stiffness component formed by rotatable leaf spring combination, and negative stiffness is generated by the change of rotatable leaf spring.The rotation or movement of rotatable leaf spring negative stiffness component in the process of vibration isolation forms matching negative stiffness, so that good quasi-zero stiffness low-frequency vibration isolation performance is obtained, and the vibration isolation efficiency of floating bed system is improved;It has the characteristics of simple structure, high reliability and long service life.

An airframe for a projectile having a cylinder having a bottom spring and a piston within the cylinder is provided. The cylinder has a locking assembly having a housing. A leaf spring is in the housing and coupled thereto. The housing has a limiter where the leaf spring operatively couples with the limiter and the limiter biases the leaf spring. The piston is moveable relative to the cylinder between a retracted configuration and expanded configurations. The piston has a housing where the piston moves between the retracted configuration and the expanded configurations when the piston housing receives a fluid. The piston has a groove that receives the leaf spring. The groove can align with the leaf spring in one expanded configuration where the piston groove receives the leaf spring thereby locking the piston with cylinder. In another expanded configuration, the leaf spring is outside the piston groove.

The chair according to the invention has a seat, a backrest, a support frame, and at least one S-shaped leaf spring. The S-shaped leaf spring at a first section is fastened to the support frame, the seat is mounted at a second section, and the backrest is mounted at a third section. A first curvature is provided between the first and second sections, so that in a neutral position of the chair the first section and the second section are situated essentially in parallel to one another and are spaced apart, and the third section adjoins the second section via a second, opposite curvature. A compressible spacer that is displaceably guided in the longitudinal direction of the first section is provided between the first and the second section.

[Problem] A design is provided that is capable of suppressing the rattling of an input element. [Solution to the problem] A leaf spring 6 has: two held sections 43, which are arranged on both sides of an input-side engagement section 14 in respect of a second direction perpendicular to a first direction, which is a direction of movement of a pressing surface 33, which moves away from or towards a pressed surface 7 and a central axis of an input element 3, and are held elastically between the input-side engagement section 14 and an input-side gripped section 34; and a base section 44, which connects the two held sections 43.

The objective is to provide a magnetic unit that can properly hold a magnetic core. [Solution] The magnetic material unit 1 includes a magnetic material core 10 formed in an annular shape around a first direction X and divided along a second direction Y intersecting the first direction X, with the first core 11 and the second core 12 in contact along a third direction Z intersecting the first direction X and the second direction Y; a base member 20 that houses the magnetic material core 10 and has a bottom portion 21 and a side wall portion 22; a cover 30 having a support portion 31 provided opposite to the second core 12 and a cover side portion 32 provided opposite to the side wall portion 22; and a leaf spring 40 that biases the second core 12 toward the first core 11. The base side locking portion 25 provided on the side wall portion 22 and the cover side locking portion 35 provided on the cover side portion 32 are locked together by the cover 30 and the base member 20 moving relative to each other in a direction that brings them closer together.

The invention relates to the technical field of metal plate stamping, in particular to a one-time punch forming device for part machining and a stamping method.The one-time punch forming device for part machining comprises a rack, a stamping table and a bending mechanism, a pressing plate is arranged on the rack, and the bending mechanism comprises a first bending plate and a sliding bearing plate; the first bending plate and the sliding bearing plate are both installed on the pressing plate in a sliding and penetrating mode, a plate spring is connected between the sliding bearing plate and the first bending plate, a pressing head is fixed to the lower end of the first bending plate, a supporting spring is arranged between the pressing head and the pressing plate in a jacking mode, the lower end of the sliding bearing plate is connected with a second bending plate in a swinging mode, and a locking mechanism is arranged between the sliding bearing plate and the pressing plate. The first bending plate moves upwards relative to the pressing plate to enable the plate spring to store energy, the plate spring drives the sliding bearing plate to drive the second bending plate to move upwards, the upper end of the second bending plate swings towards the side away from the first bending plate, and then the metal plate is bent for the second time. Energy is stored for secondary bending through downward movement of the pressing plate, and the stamping and bending efficiency is improved.

The application provides a leaf spring installation auxiliary positioning device for vehicle production, and belongs to the field of leaf spring installation equipment.The leaf spring installation auxiliary positioning device for vehicle production comprises a rack, a first positioning assembly and a second positioning assembly.The first positioning assembly comprises a first telescopic frame, a positioning sleeve and a clamping piece, and the clamping piece is arranged on the upper part of the rack.The second positioning assembly comprises a supporting frame, a bidirectional linear slide rail, a second telescopic frame, a centering piece, a lifting piece and a flattening piece.In the whole use process, the centering and fixing of the axle are realized, the clamping and positioning of the leaf spring are realized, the leaf spring is conveyed to the two sides of the axle, the relative perpendicularity between the leaf spring and the axle is ensured, the parallelism between the two leaf springs is ensured, the same side distance of the two leaf springs to the axle is ensured, the time for multiple measurement and adjustment of the installation personnel is reduced, and the installation efficiency of the leaf spring is improved.

The invention relates to a power connector, which comprises an insulating base, a conductive seat and a plate spring assembly, the insulating base is provided with an accommodating space, the conductive seat is arranged in the accommodating space and comprises a pair of fixing plates, a mounting space is formed between the fixing plates, the fixing plates are provided with abutting blocks protruding towards the mounting space, and the plate spring assembly comprises a connecting part, two elastic clamping parts and two buckling claw parts. The elastic clamping parts are located in the installation space and correspond to the fixing plates, inserting space is formed between the elastic clamping parts, the connecting part is connected to one sides of the elastic clamping parts, and the buckling claw parts are connected to the other sides of the elastic clamping parts and buckled with the ends of the fixing plates respectively. Each elastic clamping part is provided with a plurality of clamping plate springs, and the ends of the clamping plate springs abut against the corresponding abutting blocks. Therefore, the clamping stability of the clamping plate springs can be effectively improved, and deformation and failure caused by structural elastic fatigue of the clamping plate springs are avoided.

Vibration and shock absorption device for equipping a multi-leaf spring, comprising: - a first buffer (1), including: a first plate (10), a first elastic coating (11), a threaded rod (12); - a second buffer (2), including: a second plate, provided with a through hole arranged to receive the threaded rod (12), a second elastic coating (21), provided with a through opening (210) arranged to face the through hole, a nut (3), arranged to cooperate with the threaded rod (12) so as to assemble the second buffer (2) to the first buffer (1) when the through hole receives the threaded rod (12), the through opening (210) being dimensioned to receive the threaded rod (12) and the nut (3). Figure 3

The utility model discloses a high-elasticity small spring, which comprises a spring main body, the lower end of the spring main body is provided with an annular lower supporting seat, the upper end of the spring main body is provided with an annular upper supporting seat, and the opposite ends of the upper supporting seat and the lower supporting seat are respectively provided with an annular mounting groove. The upper end and the lower end of the spring body extend into the mounting grooves of the upper supporting base and the lower supporting base respectively, the inner wall of the upper supporting base and the inner wall of the lower supporting base are each fixedly connected with a U-shaped flat spring, the ends, away from openings, of the two flat springs make contact with each other, and connecting sleeves are arranged at the outer side ends of the flat springs. Through mutual contact of the two flat springs in the small spring, the flat springs deform when the spring body is compressed, the flat springs reset along with the spring body in the process that the spring body is released and reset, the elastic force is increased through superposition of the elastic force of the flat springs and the spring body, the structure is simple, and machining of the small spring is convenient.

The present application relates to the technical field of plate spring assembly, in particular to a multi-plate spring arraying and stacking structure, which comprises two conveying belts I oppositely distributed in horizontal direction and two conveying wheels I arranged in each conveying belt I and distributed in up-down direction, a plurality of supporting tables are arranged between the two conveying belts I and equidistantly distributed along the track of the conveying belt I, and a center pull rod for penetrating the center hole of the plate spring is arranged on the supporting table; by adopting the automatic stacking and collecting mode of the plate spring, the manpower can be greatly saved, the tedious operation of identifying and stacking the plate spring by the workers piece by piece can be avoided, the plate spring assembly mode is simplified, the working efficiency is improved, and since the supporting table can continuously move and collect plate springs of different specifications, the stacking work can always be in a continuous state, and the waste of waiting time during the stacking of the plate spring is avoided.

The application relates to a high-voltage direct-current relay. The high-voltage direct-current relay comprises a pushing seat, a moving spring mechanism and a leaf spring located between the pushing seat and the moving spring mechanism and comprising a base and a spring arm connected to the base, the base is arranged on the pushing seat, the spring arm is in contact with the moving spring mechanism, the base comprises a fixed part and a protruding structure connected between the fixed part and the spring arm, the fixed part is connected to the pushing seat, the protruding structure protrudes towards the side of the pushing seat relative to the fixed part, and the side surface of the protruding structure away from the spring arm is in abutment with the pushing seat. The high-voltage direct-current relay can reduce stress at the abutment position of the protruding structure and the pushing seat, reduce the risk of damage or separation of the fixed part from the pushing seat caused by the stress conduction to the fixed part and the arching deformation of the fixed part, and is beneficial to improving the structural reliability of the high-voltage direct-current relay.

Provided is a refrigerator that realizes a reduction in the number of components and a reduction in manufacturing costs, and that has a configuration that enables automatic closing and free stopping. A refrigerator (1) in which a plurality of recesses (532, 533) are formed in the peripheral surface of a cam (53) for less than half a revolution, in which a heat-insulating door (16) is maintained in a state in which it is opened at a predetermined angle by being set in a state in which a leaf spring (55) engages with one of the recesses (533), and in which the heat-insulating door (16) is rotated to a state in which it closes the front of a storage compartment by rotating the leaf spring (55) along the peripheral surface of the cam (53) and engaging the leaf spring (55) with another of the recesses (532).

A multi-directional input device (1) includes an upper housing (61); a first rotating member (62a) held on the upper housing (61) so as to be rotatable about a first axial direction; a second rotating member (62b) held on the upper housing (61) so as to be rotatable about a second axial direction; and an operation shaft (63) for rotating the first rotating member (62a) and the second rotating member (62b) in accordance with a dumping operation applied by a user. And a holding mechanism (66) that is held by the upper housing (61) and that elastically holds the operation shaft (63) in a neutral state. The holding mechanism (66) is provided with an upper plate spring (9a) and a lower plate spring (9b) which are fixedly held by the upper housing (61) so as to face each other so as to be separated from each other in the height direction. The operation shaft (63) is connected to the inner frames (92) of the upper leaf spring (9a) and the lower leaf spring (9b).

The utility model discloses a test fixture, relates to the technical field of vehicles, the test fixture is used for limiting a plate spring and a vehicle frame, the test fixture comprises a support assembly, the support assembly is provided with a first support end and a second support end which are arranged at an interval, the first support end is used for abutting against the vehicle frame, and the second support end is used for abutting against the plate spring. And the distance between the first supporting end and the second supporting end is adjustable. The test fixture provided by the utility model improves the efficiency and accuracy of the vehicle straight-going stability test.

The invention discloses a road longitudinal slope estimation method, device and equipment based on front and rear axle plate spring strain comparison and fusion and a storage medium, and relates to the technical field of new energy automobiles, and the method comprises the steps: obtaining vehicle front axle plate spring strain data, vehicle rear axle plate spring strain data, vehicle speed data and vehicle angle data; based on the vehicle front axle plate spring strain data, the vehicle rear axle plate spring strain data and the vehicle speed data, determining a baseline slope angle of a road longitudinal slope; updating a road longitudinal slope angle component of a corresponding state fusion vector based on the vehicle speed data, the vehicle angle data and the baseline slope angle, and determining a fusion slope angle; and inputting a predefined deep learning model to predict a corresponding model prediction slope angle and a slope percentage based on the baseline slope angle and the fused slope angle. According to the method, the road longitudinal slope angle component of the state fusion vector is updated, and deep learning residual error correction is carried out, so that high-precision longitudinal slope estimation is realized.

The invention relates to a guide system (30) which is designed to guide a traveling body (20) of an elevator (10) along a guide rail (21). The guide system (30) has a guide shoe (33) for guiding the traveling body (20) along a guide rail (21), a first leaf spring (31), and a leaf spring bearing (34) which is suitable for being attached to a traveling body (20) of the elevator (10). A first end (51) of the first leaf spring (31) is connected to the guide shoe (33). A second end (52) of the first leaf spring (31) is connected to the leaf spring bearing (34).

To provide a vehicle lower structure that improves straight-line stability while reducing the installation space for leaf springs in the vehicle width direction. [Solution] A vehicle undercarriage structure having a pair of side members 5, 6 arranged at intervals in the vehicle width direction and extending in the fore-and-aft direction of the vehicle, leaf springs 11 arranged so as to extend in the fore-and-aft direction of the vehicle along the pair of side members 5, 6 and support the axles of the vehicle's rear wheels, and a connecting shaft 23 that swingably connects the front end of the leaf spring 11 to the side members 5, 6, and the connecting shaft 23 is arranged inclined toward the front of the vehicle and inward in the vehicle width direction.

The present disclosure relates to a rear light for a tailgate (2) of a motor vehicle (1), comprising a housing body (41) having an upper housing side (412) and a lower housing side (413). Upper stop means (45) are arranged on the upper housing side (412), wherein the upper stop means (45) have a bearing surface for bearing against an upper side (32) of a rear light pocket (3) of the tailgate (2). Lower stop means (46) are arranged on the lower housing side (413), wherein the lower stop means (46) have a bearing surface for bearing against a lower side (33) of the rear light pocket (3) of the tailgate (2). The lower stop means (46) have a leaf spring element (462) which, on its first and second broad sides, is supported at a distance from the lower housing side (413) in each case via a supporting element (461). The present disclosure further relates to a tailgate and to a motor vehicle having a rear light.

The present disclosure relates to a front suspension and a vehicle, the front suspension comprising an upper arm assembly, a lower gas chamber support, and a lower arm assembly; the upper arm assembly comprising a first upper thrust rod, a second upper thrust rod, and a leaf spring structure, the first upper thrust rod and the second upper thrust rod extending in a front-rear direction and being spaced apart in a left-right direction; front ends of the first upper thrust rod and the second upper thrust rod being configured to be hingedly connected to a guide arm support, rear ends being hingedly connected to the lower gas chamber support; the leaf spring structure being connected between the first upper thrust rod and the second upper thrust rod; the lower arm assembly being arranged below the upper arm assembly, and a front end of the lower arm assembly being configured to be hingedly connected to the guide arm support, a rear end being hingedly connected to the lower gas chamber support; the lower gas chamber support being configured to be connected to a front axle. On the one hand, the rigidity of the leaf spring structure can resist lateral force and lateral displacement in the left-right direction, and on the other hand, the leaf spring structure can be elastically deformed without being easily twisted, and can also resist twisting.

The utility model discloses a light-weight pickup truck frame which is made of aluminum alloy and replaces a traditional steel truck frame, light weight is achieved, and meanwhile the structural stability of the light-weight pickup truck frame is guaranteed. Comprising a longitudinal beam assembly, and a front longitudinal beam connecting cross beam assembly, an auxiliary frame rear mounting cross beam, a battery bracket assembly, a first rear plate spring cross beam assembly, a new energy part bracket assembly and a second rear plate spring cross beam assembly which are sequentially arranged on the longitudinal beam assembly from front to back. The auxiliary frame rear installation cross beam assembly comprises an auxiliary frame rear installation cross beam and a first reinforcing rib, and the end of the auxiliary frame rear installation cross beam is connected with the main beam. A through hole is formed in the connecting position of the main beam and the auxiliary frame rear installation cross beam, the end of the auxiliary frame rear installation cross beam is inserted into the through hole of the main beam, and then the auxiliary frame rear installation cross beam is connected with the main beam through welding. An obliquely-arranged first reinforcing rib is connected between the auxiliary frame rear installation beam and the main beam, one end of the first reinforcing rib is welded to the side surface of the auxiliary frame rear installation beam, and the other end of the first reinforcing rib is welded to the side surface of the main beam.

To obtain strong vibrations without increasing weight. [Solution] The vibration actuator is a vibration actuator that causes a movable part housed inside a housing and elastically supported by the housing to vibrate elastically by the driving force of a drive unit, the drive unit having a pair of magnets fixed inside the housing so as to face each other across space, and a coil included in the movable part and arranged in space, and generates a driving force by the interaction of the magnetic field from the magnets and the current flowing through the coil, the housing has at least a pair of first leaf springs that elastically support the movable part, the first leaf springs having a connecting part connected to the housing, a pair of arm parts that branch off symmetrically from the connecting part and curve in a meandering shape, a confluence branching part where the pair of arm parts merge and branch off midway between the connecting part and the ends of the pair of arm parts, and a pair of support parts arranged at the ends of the pair of arm parts and supporting the movable part.

The present application relates to the technical field of ground test of space liquid engine, and particularly relates to a large-thrust inclined test bench based on flexible leaf spring support and an in-situ calibration method. The test bench comprises a fixed frame platform arranged obliquely and a movable frame supported in the fixed frame gantry through multiple sets of leaf spring assemblies; the leaf spring assemblies constrain the movable frame to move only along the thrust axis direction; the front end of the movable frame is connected to a force measuring assembly through a transition frame, and the rear end is installed with a liquid engine through a adapter frame; the fixed frame is provided with an in-situ calibration assembly and a pre-tightening force assembly acting on the movable frame, and a safety limiting assembly. The in-situ calibration method applies a standard force to the movable frame through the calibration assembly, and simultaneously records the output of the force measuring assembly to establish a calibration relationship. The present application optimizes the super-large thrust bearing path through the oblique leaf spring support structure, has single-degree-of-freedom guiding and high lateral stiffness, and realizes high-precision, high-dynamic and high-reliability measurement of the thrust of the hundred-ton liquid rocket engine under real inclined working conditions in combination with in-situ hydraulic calibration.

A device 100 for pivotally holding and locking an aggregate of an aerial vehicle (AV) includes a housing 102 fixed to the body of the AV; a cam structure 104 pivotally coupled to the housing 102 for pivotal movement about a pivot axis between a deployed position, in which the aggregate fixed to the cam structure 104 is operational, and a folded position, in which the aggregate is not operational; and a plate spring 106 configured in the housing 102. Cam structure 104 is configured relative to the plate spring 106 such that, when the cam structure 104 is moved between the deployed position and the folded position, the cam structure 104 deflects the plate spring 106 to cause toggling of the aggregate between the deployed position and the folded position. The aggregate is any of a rotor arm assembly and a landing gear 108.

The present invention relates to a seismic isolation device capable of reliably isolating vibrations applied to a building from the ground in the event of an earthquake by having a structure in which upper and lower support parts are respectively provided on the upper and lower parts of a core seismic isolation part, a stopper coupled to the upper support part, and a plurality of leaf springs coupled to the stopper. Therefore, facilities and personnel in the building can be protected, and toppling or damage of the building can be reduced to the maximum extent.

The invention relates to the technical field of testing of mechanical parts, in particular to a testing device and system for automobile parts, and the testing device for the automobile parts comprises a base, a pressing assembly and two supporting assemblies. The supporting assembly comprises a sliding seat, a fixed plate, a basic shaft, a driving mechanism, two sliding rods, a movable plate, a rotating disc, a first hollow shaft, a second hollow shaft, a third hollow shaft and a fourth hollow shaft. The outer diameter of the first hollow shaft, the outer diameter of the second hollow shaft, the outer diameter of the third hollow shaft and the outer diameter of the fourth hollow shaft are consistent with the inner diameter of spring eyes of common plate springs of several specifications. The inner diameters of the first hollow shaft, the second hollow shaft, the third hollow shaft and the fourth hollow shaft are matched with the base shaft; therefore, the hollow shafts of different specifications can be switched to be matched with the basic shaft, spring eyes of plate springs of different specifications can be positioned and supported, and the plate springs of various specifications can be tested in a compatible mode.

This utility model relates to the field of steel leaf spring processing technology, specifically disclosing a portable steel plate chamfering machine for processing steel leaf springs. It includes a protective handle and a chamfering assembly installed at one end of the protective handle for chamfering the edges of the steel plate. The protective handle has an internal receiving groove. The chamfering assembly includes a chamfering grinding disc rotatably connected to one end of the protective handle and a drive motor detachably installed in the receiving groove near the end of the chamfering grinding disc for rotating the grinding disc. The chamfering grinding disc is coaxially connected to the output end of the drive motor. A protective shield is installed on the periphery of the end of the protective handle near the chamfering grinding disc to block debris generated during chamfering. This solves the problem of traditional steel leaf springs requiring separate equipment for chamfering after assembly, which is inconvenient and increases processing costs.

This invention provides a fixing structure for automotive components (e.g., magnetic components) with improved slip resistance. [Solution] The magnetic component 10 comprises at least a coil 4, a ferrite core 3, and a leaf spring 2 that presses the upper surface 30 of the ferrite core 3 against the housing 1 with elastic force. The upper surface 30 of the ferrite core 3 has a groove 31 extending in a direction intersecting the front-rear direction of the vehicle (the direction in which the vehicle moves forward and backward). The inner wall surface of the groove 31 is inclined, and the protruding portion 21 of the leaf spring 2 has a rounded R shape. The R-shaped tip portion 20 of the leaf spring 2 is pressed against the opposing inclined wall surfaces 32a and 32b, respectively, thus fixing the magnetic component at two locations 20a and 20b. The groove may also have a groove 35 extending in a direction intersecting the left-right direction of the vehicle (the direction in which the vehicle rotates), and inclined wall surfaces 36a and 36b may be formed in the same manner as described above.

An assistive ankle support device is described, usable to improve the performance of ankle foot orthoses and exoskeletons. The device has a tubular vertical member arranged medially to a user's limb. The member carries a rotational bearing and a rotational element such as a pulley. The pulley is connected to a footplate. The footplate provides joint movement assistance or resistance to the user upon rotation of the pulley. The pulley is coupled to a leaf spring mounted internally to the tubular vertical member. A clutch mechanism selectively couples the leaf spring to the pulley via a ratchet. The clutch mechanism may be automatically controlled by a controller.