152 results about "Tappet" patented technology

An electromechanical brake actuator (10) for a brake of a vehicle (100) has a brake tappet (14) that can be moved substantially translationally for transmitting a compressive force (F) in the direction of a brake pad (6, 6′), a drive member (16) that generates a drive movement (A) and a coupling gear (18) that operatively connects the drive member (16) to the brake tappet (14). The coupling gear (18) converts the drive movement (A) of the drive member (16) into an adjustment movement (B) of the brake tappet (14). The coupling gear (18) has a coupling member (38) in contact with the brake tappet (14) that moves along a cam path (40, 60) and converts the substantially uniform drive movement into an adjustment movement (B) of the brake tappet (14) at, in portions, a non-uniform adjustment speed (B′).

Recess and protrusion features on a brake pad backing plate and an air disc brake tappet create a unique interface that keys the backing plate for use with the tappet. If the backing plate and / or tappet move during braking, the force applied by the protrusion of the tappet against the inner wall of the recess, or vice versa, can cause stress or damage to the backing plate, tappet, and / or other parts of the braking system. To accommodate such movement, the inner dimensions of the recess can be made greater than the outer dimensions of the protrusion. In one embodiment, the minimum dimensions of the recess are determined from a stack-up of tolerances of various components in the braking system. In another embodiment, maximum dimensions of the recess are determined to avoid overlapping step-down transitions in the backing plate and tappet during braking.

A cam-driven valve assembly comprises a valve body that defines a plurality of fluid passages and supports a group of fluid valves within those passages to control fluid flow. The assembly includes a plurality of cams supported on a camshaft. The camshaft is arranged such that each cam is associated with a corresponding valve. Rotation of the camshaft actuates the valves via the cams. Each cam comprises a pair of cam discs that interact to define an inner cam track. A valve body for each fluid valve includes a cam tappet that is received in the cam track of a corresponding cam. The cam tracks can be configured such that at least one of the valves is actuated at a time different from the actuation time of another valve.

This invention belongs to the field of heat treatment, specifically a heat treatment device for an integrated ball-and-socket valve tappet with an anti-deformation structure. It includes: a material-holding mechanism for supporting the tappet within a heating furnace; and a limiting mechanism disposed on the material-holding mechanism for limiting the lugs at the top of the tappet, reducing deformation during heat treatment. The material-holding mechanism includes a material rack and at least one material tray disposed on the rack. The bottom of the material tray has a grid structure and multiple mounting holes that are interference-fitted with guide bodies for loading the tappet. The limiting mechanism includes a transmission mechanism and a limiter. By setting the limiter, the two thinner lugs on the tappet can be limited to reduce deformation during heat treatment. The mounting holes also allow the tappet to be placed vertically during heat treatment, reducing elliptical deformation of the top lugs due to gravity.

The application discloses a kind of wind turbine single blade installation process dynamic response analysis methods considering wind load action, comprising: according to the wind turbine blade installed and construction sea area, establish blade airfoil database and turbulent wind field database;When the position of lifting point and the position of tappet vertex are described, homogeneous transformation matrix is used to describe the motion of each mechanism of ship-mounted crane;When the position of lifting point is described, the position of tappet vertex is described, and the position of blade centroid in space is described by lifting point position, sling length and generalized coordinate;Wind load at each time point in the process of blade installation is obtained;The sling tension in the process of blade installation is obtained;The dynamics model of single blade installation system is established by using Lagrange method;The method can accurately analyze the coupling motion response between crane ship, ship-mounted crane, sling and blade in the installation process, and simultaneously by selecting generalized coordinate and modeling and analyzing the system based on energy method, the system modeling efficiency is effectively improved.

Pallet transport device, including: a mobile pallet transport rack; a pallet support arrangement which is carried on the pallet transport frame for a back-and-forth movement relative to the frame and comprises pallet supports which are spaced and shaped to accommodate and support pallets; a lifting frame fixed to the frame and containing guides shaped to support and guide the pallet carrier assembly by a reciprocating lifting and lowering motion, so that the pallet carrier assembly raises and lowers all pallets arranged to be supported by the pallet carriers; a drive machine which is supported by the frame and operatively connected to the pallet carrier assembly and configured to move the pallet carrier assembly by its reciprocating lifting and lowering motion; and a motion control system that is connected to the drive machine and configured to plan the reciprocating lifting and lowering motion of the pallet carrier assembly, wherein the motion control system comprises a mechanical linkage that operatively connects the drive machine to the arrangement, wherein the linkage comprises a cam that is driven by the drive machine and is shaped to plan the reciprocating motion of the arrangement via a movement of a cam tappet that is operatively connected to the arrangement.

The utility model relates to the technical field of engines, in particular to an engine valve tappet layout structure which comprises a cam shaft arranged in an engine box body, tappets are arranged on the engine box body and correspond to two valve cams arranged on the cam shaft in pairs, the upper ends of the tappets are used for being connected with valve push rods, and the lower ends of the tappets are used for being connected with valve push rods. The upper ends of the valve push rods extend upwards and are arranged on a cylinder cover above an engine cylinder head; an oil pump is arranged on the engine box body and corresponds to a pressure supply cam arranged on the cam shaft, and the pressure supply cam is matched with the pressure supply end of the oil pump. The paired two valve cams are arranged at one end of the cam shaft, and the pressure supply cam is arranged at the other end of the cam shaft. The utility model has the characteristics that the structural design is simpler and more reasonable, the layout is more compact, and the working reliability can be improved.

The invention belongs to the technical field of multi-tube grenade launchers, and particularly discloses an ejection mechanism of a multi-tube remote launcher, which comprises an ejection jack seat, a guide part, an ejection jack and an ejection driving part, the ejection tappet is movably arranged between the two bullet holes in the middle layer, and four mounting arms are arranged on the ejection tappet in the circumferential direction of the ejection tappet; the number of the ejection stiles is four, the ejection stiles are correspondingly installed on the four installation arms respectively, the installation positions of the four ejection stiles form four vertexes of a rectangle, three bullet holes are evenly distributed in the outer side of each ejection stile, and the end, away from the ejection stile base, of each ejection stile movably penetrates through the rear linkage and is provided with ejection bullet teeth. Each ejection tooth is configured to synchronously eject cartridge cases in three cartridge holes in the outer side of the corresponding ejection jack; and the ejection driving piece is connected to the rear link. According to the ejection mechanism, the limited space under the 323 layout is fully utilized, ejection operation is efficiently and accurately conducted on the cartridge cases in all the cartridge holes, and the ejection problem under the specific layout is solved.

The utility model relates to the technical field of engines, and discloses a plane tappet, an engine valve mechanism, an engine system and a vehicle, the plane tappet comprises a base and a tappet body, the tappet body is located on the side, away from a contact face, of the base, and the top end of the tappet body is used for abutting against a push rod; an oil passing channel is formed in the plane tappet, a first opening and a second opening are formed in the two ends of the oil passing channel respectively, the first opening is located in the top end, and the second opening is located in the contact face. In the working process, engine oil flows to the top end of the tappet body, then flows into the oil passing channel through the first opening and finally flows out of the second opening. Therefore, due to the arrangement of the oil passing channel, it can be guaranteed that enough engine oil flows to the gap between the contact face and the cam shaft, the lubricating performance between the plane tappet and the cam shaft is improved, and then the working efficiency of an engine valve mechanism is improved.

The utility model relates to the technical field of environmental test equipment, in particular to an adjustable locking mechanism of environmental test equipment, which comprises a test box, a spring and a locking component. A box door is arranged on one side of the test box, a fixing block is arranged on one side of the box door, a connecting block is arranged on one side of the test box, a locking assembly is arranged on one side of the box door, a spring is arranged on the inner side of the fixing block, a limiting block is arranged on one side of the spring, a first rotating shaft is arranged on the inner side of the limiting block, and a threaded ejector rod is arranged on the inner side of the fixing block. A groove is formed in the position, corresponding to the limiting block, of the fixing block, the limiting block is movably connected into the groove of the fixing block, and a groove is formed in the position, corresponding to the first rotating shaft, of the fixing block. According to the device, through an anti-reversion mode, after the device is locked, the device is fixed and prevented from reversion, and therefore the problems that locking is conducted in a most threaded connection mode, threaded connection is vibrated and impacted in the working state of the device, and connection looseness or failure or premature fatigue damage can be possibly caused are solved.

This invention relates to the field of clutch assembly technology, and discloses an automotive clutch tappet mechanism, including a clutch pedal. A hinge rod is hinged to one side of the bottom of the clutch pedal, and the end of the hinge rod away from the clutch pedal is connected to a clutch master pump. A hydraulic oil pipe is connected to the output end of the clutch master pump, and an oil supply mechanism is connected to the top of the clutch master pump. A clutch slave pump is connected to the end of the hydraulic oil pipe away from the clutch master pump, and a mounting bracket is fixedly connected to the side of the clutch slave pump. A rotating shaft is rotatably mounted on the mounting bracket, and a pusher head is movably engaged on the rotating shaft. Multiple pushers head are arranged in a ring shape, and the side of the upper pusher head abuts against a release bearing. Through the cooperation of an on / off valve, a flow sensor, a high-pressure pump, and branch pipelines, the output force of the clutch slave pump is increased, avoiding faults such as incomplete clutch disengagement and increased pedal resistance caused by insufficient pressure or abnormal flow, thereby improving the working stability of the clutch.

The invention relates to a sanitary valve (1) comprising a main valve (2), which has a movable switching element (3), by means of which the main valve (2) can be actuated between a closed position, in which the switching element (3) abuts against a valve seat (5) of the main valve (2) in a sealing manner, and an open position, in which the switching element (3) abuts against the valve seat (5) of the main valve (2) in a sealing manner, the pilot valve (4) can be actuated by means of a valve tappet (6) between a closed position and an open position, the valve tappet (6) in the closed position is seated on a pilot valve seat (8) of the switching element (3) with a seating region (7), and at least the seating region (7) has a greater hardness than the pilot valve seat (8). The invention further relates to a sanitary fitting comprising a sanitary valve (1) according to the invention.

A rocker arm assembly is rotatable about a rocker arm shaft and comprises a first section and a second section. The first section is configured to accommodate a valve lift profile. The second section is configured to interact with one or more valves. The rocker arm assembly also includes an actuating assembly, which is switchable between a first state and a second state, and a tappet assembly, which is provided in a tappet bore and has a tappet axis angled with respect to a longitudinal axis of the actuating assembly.

The following embodiments relate to pneumatic disc brake tappets and brake pad backplates with interface features. In one embodiment, a pneumatic disc brake tappet is provided, comprising: a top surface; and a support member coupled with the top surface; wherein the top surface includes an interface feature configured to engage with a corresponding interface feature of a brake pad backing plate. In another embodiment, a pneumatic disc brake pad assembly is provided, comprising: a friction material; and a backing plate coupled with the friction material; wherein the backplate includes interface features configured to engage with corresponding interface features of a top surface of the pneumatic disc brake tappet.

The application discloses a replaceable cam diesel engine valve tester, and belongs to the technical field of diesel engine testing equipment. The replaceable cam structure is used to realize the uniform installation of test cams with different shape parameters on the top of a valve rod, the position of a tappet is fixed through a clamping piece, the convex surface direction of the test cam is fixed through an elastic pin, the arc surface of the test cam contacts the end surface of the tappet through a moving shell frame, the initial position of the test cam is determined through the positioning of the test cam and the tappet and the fixation of a locking part, the device has high universality, the driving test of different test cams and valves can be realized only by replacing the test cam, the support structure of the test cam is correctly positioned during the installation of the test cam, and the support structure specially designed and manufactured for different test cams is not needed, thereby saving equipment occupation and reducing the difficulty of test part replacement.

The utility model discloses a stair climbing wheelchair which comprises a driving mechanism, a seat frame assembly, a tappet balance mechanism and an operation controller. The driving mechanism is installed on the seat frame assembly. The utility model has the beneficial effects that a control signal is sent by the operation controller controlled by a person, the motor controller sends a signal to the three mechanisms after receiving the signal: the balance wheel mechanism, and the balance wheel mechanism controls the balance driving device to drive the balance wheel to start lifting or descending operation after receiving the signal; after the tappet balance mechanism receives the signal, the tappet balance mechanism controls a tappet driving device to drive a tappet to start lifting or descending operation; and the driving mechanism is used for controlling the two tires to start to rotate or stop after the driving motor receives the signal. Angles of the three mechanisms can be dynamically adjusted according to factors such as inclination of a stair or an obstacle, weight of a human body and gravity center of the human body, so that the stair or the obstacle can be climbed more stably and safely.

The utility model relates to a normally open solenoid valve for a double-cavity air spring, which comprises a shell, a movable iron core axially moving and a coil assembly controlling the movable iron core to move are arranged in the shell, a base is mounted at one end of the shell, a base is mounted between the base and the coil assembly, and a valve port is arranged on the base. A tappet capable of moving axially is arranged at the position, corresponding to the valve port, between the base and the base, one end of the tappet penetrates through the base to abut against the movable iron core, an elastic piece is arranged at the second end of the tappet, and an auxiliary sealing piece is arranged between the tappet and the base and comprises a sealing body which is in a circular ring shape. The upper end and the lower end of the sealing body are each provided with an outer lip part and an inner lip part, the two outer lip parts, the two inner lip parts and the whole vertical section of the sealing body are in an X shape, the two inner lip parts are in interference fit with the outer wall of a tappet, and the two outer lip parts are in interference fit with a base. A brand new auxiliary sealing piece structure is designed, and the difference value of dynamic and static friction force can be reduced as much as possible through the design.

The utility model discloses a balance supporting device for a wheelchair, which comprises a tappet balance mechanism, and the tappet balance mechanism is hinged to the rear part of a walking mechanism and is used for supporting the walking mechanism. The utility model has the beneficial effects that the tappet balance mechanism is arranged behind the walking mechanism, the walking mechanism and the tappet balance mechanism can be controlled by the controller to achieve better balance when encountering obstacles or climbing stairs, the structure is simple, reasonable and compact, the manufacturing cost is low, the operation is convenient, and the working efficiency is improved. In addition, the walking mechanism is further provided with a balance driving device, different control modes can be selected according to different working conditions, the applicability is wide, and operation is convenient.

The present invention discloses a valve stem (1, 1”) for a valve (100, 100”) in a metering system (200) for metering substances, wherein the valve stem (1, 1”) has an elongated, substantially cylindrical body having a stem tip (60) at a front side end (B), a stem head (10) in an opposite head region (A), and at least a first guide sleeve section (20), a tapered section (30), a second guide sleeve section (40), and a fluid section (50) formed between the stem tip and the stem head from the stem head (10) to the stem tip (60), wherein the outer diameter (30d, 30d”) of the tapered section (30) is reduced relative to the outer diameter (20d, 20d”, 40d, 40d”) of the first and second guide sleeve sections (20, 40). The present invention also relates to a valve (100, 100”) having such a valve tappet (1, 1”) and a metering system (200) having such a valve (100, 100”) or valve tappet (1, 1”).

The utility model provides an air pipe connector, which relates to the technical field of vehicle pipeline connectors, and comprises a connecting pipe, a partition plate is arranged on the edge of one end close to the connecting pipe, a communicating hole and a vent hole are arranged on the partition plate, and the other end of the connecting pipe is connected with a joint; a communicating hole is formed in the connecting pipe, a tappet is arranged in the connecting pipe, one end of the tappet penetrates through the communicating hole in a sliding mode and extends out of the connecting pipe, an abutting ring is arranged at the other end of the tappet, an assembling groove is formed in the end, close to the abutting ring, of the connecting pipe, and the abutting ring is detachably connected with the assembling groove. According to the utility model, the connector is detachably connected with the connecting pipe, and one end, far away from the connecting pipe, of the connector is connected with the vehicle body, so that when the abutting ring abuts against the assembling groove formed in the connecting pipe, a gas circulation channel of the connecting pipe is separated, and compressed air from the connector cannot leak.

A drum brake assembly that includes a brake drum, first and second brake shoes, a cam shaft, a first tappet, a second tappet, and a wear adjuster mechanism. The wear adjuster mechanism has a cross shaft and a sensor. The sensor is configured to detect rotation of the cross shaft about a longitudinal axis to monitor wear of the first and second brake shoes and a braking surface of the brake drum.

The utility model relates to the technical field of material sorting, in particular to a modular sorting executing mechanism and an intelligent dry separator, the modular sorting executing mechanism comprises a power device and a cam driving module, and the power device is connected with the cam driving module to provide a power source for the cam driving module; the cam driving module comprises a cam shaft assembly, a tappet assembly, a shifting fork assembly and a push plate assembly, the push plate assembly is matched with the cam shaft assembly in the Z direction through the tappet assembly, and the shifting fork assembly is used for pushing the curved surface contour of the cam shaft assembly to move according to the signal instruction; the position change of the tappet assembly between the low position and the high position of the curved surface contour of the cam shaft assembly is achieved, and then the push plate assembly is driven to generate displacement change in the Z direction. It is ensured that one end of the shifting fork assembly makes stable contact with the low position of the cam shaft assembly all the time, unnecessary Z-direction displacement is avoided, and the system stability and the energy utilization efficiency are remarkably improved.

An electromagnetically actuable flow control valve with a pressure equalization space delimited by a tappet of the valve.

The utility model provides a valve tappet bottom surface thickness testing fixture, which relates to the technical field of valve tappet testing fixtures and comprises a base, a measuring mechanism is mounted at the top end of the base close to the front surface, a fixing assembly is mounted at the top end of the base close to the back surface, and a valve tappet body is fixed in the fixing assembly. A driving assembly is installed in the base and located at the bottom of the measuring mechanism, a zero returning assembly is installed on the left side of the base and located on the right side of the fixing assembly, the measuring mechanism comprises a fixing frame, the fixing frame is installed at the top end of the driving assembly, and the measuring assembly can be driven to move up and down by rotating a second lead screw. By sliding the push-pull rod left and right, the back surface of the laser transmitter is tightly attached to the front surface of the valve tappet main body and uniformly slides, the thickness of the bottom surface of the valve tappet main body can be accurately and comprehensively measured, and the practicability is effectively improved.

This invention discloses an intake and exhaust control mechanism and a four-stroke high-power valve incorporating the mechanism, including a valve, a rocker arm for driving valve opening and closing, a cam, and a transmission assembly connecting the cam and the rocker arm; it also includes a lift adjustment assembly and a buffer assembly; the transmission assembly includes an axially extendable tappet, the bottom end of which rolls in contact with the cam, and the top end of which abuts against one end of the rocker arm; this invention belongs to the technical field of internal combustion engine valve train mechanisms, and its purpose is to solve the problems of fixed or discontinuous lift adjustment, large impact under high load, and mismatched buffer characteristics in existing valve mechanisms. The technical effect achieved is: by driving the tappet to extend and retract through a threaded adjusting pair and a bevel gear transmission pair, stepless adjustment of valve lift is realized, which reduces the lift and enhances swirl under low load, and increases the lift and improves charging efficiency under high load, while the thread self-locking ensures stable adjustment and optimizes intake and exhaust performance under all operating conditions.

The invention discloses a double-actuator integrated control mechanism and an operation method, the double-actuator integrated control mechanism comprises a shell, a driving motor, a first lifting cam and a second lifting cam, a load shaft is integrally formed on the first lifting cam and the second lifting cam, and the output end of the driving motor drives the load shaft through a transmission structure; the first roller tappet is matched with the first lifting cam to drive sliding, and the second roller tappet is matched with the second lifting cam to drive sliding. Through forward rotation and reverse rotation of a driving motor, a turbine drives a first lifting cam and a second lifting cam to perform required working rotation, and under the action of the first lifting cam and the second lifting cam, a first roller tappet and a second lifting tappet perform ejection operation on a first sliding rod and a second sliding rod; and a rotary locking structure is formed based on the combination of the locking block, the wave teeth and the inclined sharp teeth, so that the position locking and unlocking control of the first sliding rod and the second sliding rod is realized.

A pneumatic actuator (1) for a metering valve (4) for metering material to be metered (DS) is described, the pneumatic actuator (1) having a tappet (2) for dispensing material to be metered (DS) from the metering valve (4). The tappet (2) is formed in one piece and comprises a piston (20) at the end, the piston being mounted in a cylinder (10) of the pneumatic actuator (1) without any sealing action with respect to the cylinder (10). A pressure medium (DL) can be applied to at least one side (21, 21') of the piston (20) in order to move the tappet (2) in a direction (R). The invention further relates to an actuator module (3) having such a pneumatic actuator (1), to a metering head (9) having at least one actuator module (3), to a metering valve (4) having a pneumatic actuator (1), and to a method for controlling a pneumatic actuator (1).

The utility model relates to the technical field of brake pad steel backing machining, and discloses a brake pad steel backing stamping die which comprises a bearing table, a drawing and collecting assembly is arranged at the bottom of the bearing table, and the drawing and collecting assembly is used for temporarily collecting waste generated in machining and facilitating transfer. And an ejection assembly is embedded in the front face of the interior of the bearing table, and the ejection assembly is used for ejecting out the brake pad steel backing and taking down the brake pad steel backing conveniently. According to the brake pad steel backing stamping die, the ejection assembly is installed, an extrusion disc can be driven to compress a supporting spring by pulling a connecting rod, the supporting spring can provide pushing force for resetting, and in the pulling process, the extrusion disc drives an arc-shaped ejection rod to slide along an arc-shaped groove structure on the inner side through a driving rod; the area at the tail end of the arc-shaped ejector rod can be controlled to push out the brake pad steel backing through sliding, the machined brake pad steel backing can be directly pushed out through control of the ejection assembly, and replacement and maintenance are convenient.

The invention relates to a tappet for a high-pressure fuel pump of a heavy-duty internal combustion engine, comprising a hollow cylindrical housing which accommodates a cam roller at the upper end thereof, which cam roller runs on a bolt via a sliding bearing lubricated by pressure oil, which bolt is arranged in a planar portion of the housing, a bridging part integrally connected with the inner circumferential face penetrates through the shell and extends below the cam roller, an independent bottom gasket is arranged on the lower surface of the bridging part, a concave notch located in the center is formed in the lower end face of the bottom gasket, and the bottom of the notch is used as a bearing face of the end face of a pump piston. The wall of the recess serves as a direct holding means for the circumferential section of the pump piston, the lower end face of the bottom gasket has an annular bearing at the edge thereof for supporting the pump piston spring, the upper end face of the bottom gasket rests on the lower surface of the bridge, and a pressure oil path supplied by a radial channel in the housing is provided in the upper end face. And the pressure oil path leads to an axial through hole which is formed in the bridging part and is directly opened at the inner end face of the plane part.

The following embodiments relate to air disc brake tappet and brake pad backing plate with interface features. In one embodiment, an air disc brake tappet is provided comprising: a top surface; and a support member coupled with the top surface; wherein the top surface comprises an interface feature that is configured to engage with a corresponding interface feature of a brake pad backing plate. In another embodiment, an air disc brake pad assembly is provided comprising: a friction material; and a backing plate coupled with the friction material; wherein the backing plate comprises an interface feature that is configured to engage with a corresponding interface feature of a top surface of an air disc brake tappet. Other embodiments are provided.