28 results about "Axial projection" patented technology

This utility model relates to the field of agricultural machinery power output technology, and discloses a transmission device for an agricultural work machine, including a power unit and a transmission housing. The power unit is drively connected to the transmission housing. A clutch unit, supported by a power shaft and used to connect or disconnect power transmission, is disposed within the transmission housing. A maintenance port for maintaining the clutch unit is provided on the transmission housing, located on the radial projection side of the clutch unit and / or the axial projection side opposite to the power unit. This facilitates the inspection and maintenance of the clutch unit, allowing for quick disassembly, replacement, and installation.

The utility model discloses a kind of aromatherapy, including the container cavity for placing aromatherapy substance, the opening of container cavity is equipped with cover, the cover includes the upper cover and lower cover that can relatively rotate, the upper cover is equipped with the through-hole for the first sealing member passing, the lower cover is equipped with the key type hole for the first sealing member passing, the first sealing member includes the key type portion, connecting portion and sealing portion sequentially arranged along axial direction, the key type portion penetrates the key type hole, the axial projection of the sealing portion covers the through-hole, the upper cover is equipped with the support for being abutted with the connecting portion, when the upper cover rotates, the support is changed with the abutted position of connecting portion along with rotation and make the sealing portion control the through-hole opening and closing.The utility model has the advantages that the relative positions of first sealing member, second sealing member and third sealing member can be kept, and they are opened synchronously at different speeds.

The present invention relates to a pressing tool for forming a green cutting blade blank (8) by compacting powder. The pressing tool includes a stamping device (3) comprising: an axially extending front section having a front end in a cavity, the front section being operable to present an initial orientation and a target orientation; and an axially extending rear section connected to the front section and located axially rear of the front section. The pressing tool further includes: a movably arranged spacer element (10) operable to translate from a starting position to a target position; and an arm member (17) extending axially along the rear section (14) at a distance from the rear section (14). A connector unit (18) connects the arm member (17) and the rear section such that the distance from the rear section (14) to the arm member (17) is adjustable at a position axially forward of the connector unit (18). The spacer element (10) is arranged and configured to engage the arm member (17) via the arm contact point (19) and the rear section via the rear contact point (20). When the spacer element (10) is in the initial position, the distance from the arm contact point (19) to the rear contact point (20) in the axial projection on the axial plane is the rear starting distance, thereby the joint unit (18) is in the initial state and the front section (11) is in the initial orientation. When the spacer element (10) is in the target position, the distance from the arm contact point (19) to the rear contact point (20) in the axial projection on the axial plane is the rear target distance (24), thereby the joint unit (18) is in the target state biased toward the initial state and the front section (11) is in the target orientation.

The invention relates to a suspension bump stop for a motor vehicle, comprising an upper cup (2) and a lower cup (3) forming a relative rotation interface between them, said lower cup having a lower bearing wall (4) against which a suspension spring (1) is intended to bear, said bearing wall having an annular bearing surface (4a) extending along a radial dimension, the bearing wall (4) having a wall (6) which extends axially in projection from the radial bearing surface (4a) over a height H, said radial bearing surface having at least one set of three bosses (7a) distributed angularly and which extend in axial projection over a height h which is less than the height H. Figure 1

This disclosure provides a clamping pliers, including a jaw assembly, a lever assembly, a housing, a clamping drive mechanism, and a reset mechanism. The lever assembly is connected to the housing, the jaw assembly is connected to the distal end of the lever assembly, the clamping drive mechanism is configured to drive the clamp into the jaw assembly, and the reset mechanism includes an operating member and a clamping reset drive member. In response to the operating member driving the clamping reset drive member to move along a first direction, the clamping pliers switch from a first state to a second state, such that the axial projections of the second drive portion of the clamping reset drive member and the first drive portion of the clamping drive mechanism at least partially overlap, driving the clamping drive mechanism to move axially towards the proximal side to achieve the reset of the clamping drive mechanism. This disclosure allows for manual reset of the clamping drive mechanism with a single operation of the operating member, resulting in a simple structure and convenient use.

This utility model discloses an inverted drainage pump with improved self-priming performance, comprising a pump cover component, a pump casing component, and a rotor-impeller assembly. The impeller cover of the impeller body component has an impeller suction port at its center, with blades extending into the axial projection position of the impeller suction port, and the blades forming an inclined portion at the axial projection position of the impeller suction port. The rotor chamber of the pump casing component is equipped with an exhaust channel connecting to the outside. When water enters through the inlet of the pump cover component, the air in the rotor chamber of the pump casing component is driven by pressure and discharged to the outside along the exhaust channel. This utility model mainly solves the problem of how to improve the self-priming performance of an inverted drainage pump. When the liquid medium is sucked into the impeller chamber, the air retained in the rotor chamber is driven by pressure and discharged to the outside along the exhaust channel, resulting in a higher negative pressure in the impeller chamber and rotor chamber, thereby improving the self-priming performance of the inverted drainage pump.

This disclosure relates to a method for designing compressor blades and the compressor blades themselves. The method includes: determining the suction surface profile of a basic blade profile with a blade height section, which includes: giving the leading edge metal angle β of the suction surface profile. in Trailing edge metallic angle β out And the axial projection length L of the suction surface profile, where β out <β in Establish a rectangular coordinate system OXY, with the X-axis parallel to the axial direction. The coordinate of the leading edge S of the suction surface profile is 0 on the X-axis, and the coordinate of the trailing edge C of the suction surface profile is L on the X-axis. Given the maximum turning point A of the suction surface profile, the coordinate of the maximum turning point A on the X-axis is greater than 90% and L is less than L. Given the metal angle β of the maximum turning point A. A ,β A <β out The suction surface profile is determined by making the metal angle of the suction surface profile gradually decrease from the leading edge point S to the maximum turning point A, and gradually increase from the maximum turning point A to the trailing edge point C. This disclosure is used to improve the aerodynamic performance of compressors and achieve precise control of the suction surface Mach number.

The application belongs to the technical field of robots and relates to a leg structure of a humanoid robot and the humanoid robot, aiming to synchronously solve the problems of high processing cost of the existing thigh structure, easy shearing failure of the connecting fastener and influence on the appearance caused by exposure. The leg structure comprises an integrated rotary joint, a thigh structure, a lower leg structure and a bearing assembly. The arc-shaped first connecting end of the thigh structure is provided with interval protrusions, the first shell of the joint shell is provided with matching grooves in a split manner, the protrusions are embedded in the grooves and locked by the fasteners arranged along the joint rotation axis. The bearing assembly is arranged in the lower leg sleeve part and rotationally supported outside the second shell of the joint. The flange part is fixedly connected with the joint output flange, and the axial projection of the fastener is located in the sleeve part. The scheme considers the connection strength and appearance concealment, simplifies the processing and reduces the cost.

This utility model discloses a speaker shell fixing and sealing structure and a speaker shell. The speaker shell fixing and sealing structure includes a lead wire side plate disposed on the speaker shell, which is used to pass through the lead wire. A glue storage box is disposed on the inner side of the lead wire side plate, and the lead wire passes through the glue storage box. One side wall of the glue storage box is open, and the opening direction is perpendicular to the lead wire's exit direction. A glue injection hole is opened on the side plate of the speaker shell near the opening of the glue storage box. The axial projection of the outline edge of the glue injection hole opening is located inside the glue storage box. This utility model can effectively reduce the risk of glue separating and falling off from the speaker shell, and can realize automated glue injection and sealing operations, improving glue injection efficiency.

The utility model provides a kind of sealing assembly and feed pump, the sealing assembly includes pump shell, suction section, first stage middle section and stress guiding structure, pump shell includes inner axial locating surface;Suction section is equipped with inner sealing element between inner axial locating surface, and first radial end face is equipped on suction section;First stage middle section is abutted on suction section axially and is radially limited with suction section, and second radial end face is equipped on first stage middle section and faces suction section;Stress guiding structure is arranged between suction section and first stage middle section, and stress guiding structure is used to limit the stress area between first radial end face and second radial end face to make axial force on first stage middle section pass to suction section along stress area, and the axial projection area of stress area is less than the coincident area of first radial end face and second radial end face axial projection.The utility model can change stress transmission path to reduce or eliminate the overturning moment generated by first stage middle section to suction section, to guarantee that inner sealing is long-term reliable.

This application provides a bladeless fan, comprising: a housing; a central component disposed radially inside the housing; and a fan assembly disposed radially inside the housing. An air inlet is formed radially near the axis of the housing, and an air outlet is formed radially away from the axis of the housing. The axial projection of the air inlet does not coincide with the axial projection of the air outlet. By ensuring that the axial projections of the air inlet and air outlet do not coincide, the air pressure and air velocity are increased as the air flows from the air inlet to the air outlet.

The invention relates to a wheel bearing unit (10) for a vehicle, comprising a wheel hub (16) connectable to a ball joint (12) for torque transmission via a face gear (18) and rotatable about an axis of rotation (14), a bearing device (22) for rotatably mounting the wheel hub (16) on a support element (24), a sealing device (26) with at least one first sealing element (28) fixed relative to the wheel hub (16), wherein the sealing device (26) has a second sealing element (30) designed separately from the first sealing element (28) and fixed relative to the ball joint (12), and the first sealing element (28) has a first radial section (66) and a first axial projection (68) adjoining it, and the second sealing element (30) has a second radial section (72) and a second axial projection adjoining it. exhibits an axial projection (74),wherein, depending on an axial offset (82) between the first and second sealing element (28, 30), the first axial projection (68) abuts the second radial section (72) and / or the second axial projection (74) abuts the first radial section (66) in a sealing manner.

Blind rivet nut (1) for a screw connection between a support component and a fastening component, comprising: a. a sleeve-shaped shaft (10) with an internal thread (16) that can be inserted into a fastening hole of the support component, a fastening flange (20) at a first end and a folding zone (12) that can be folded into a compression bead and supported on opposite sides of the support component, wherein b. the fastening flange (20) has a knurling (22) on a radially outer side as well as axial projections (24) on the side of the fastening flange (20) facing the shaft and axial projections (26) on the side of the fastening flange (20) facing away from the shaft, each of which is arranged immediately adjacent to the radial outer side.

The present application relates to laboratory filtration equipment technical field, provide a kind of needle filter, comprising: shell, the first end of shell is provided with inlet;Pressure cylinder, along the axial projection of shell is arranged at the first end of shell, and located the outside of inlet, one end of pressure cylinder is communicated with the inside of shell, the end of pressure cylinder away from shell is closed and is provided with vent hole;Buffer cavity, set to the inside of shell, buffer cavity is communicated with pressure cylinder and inlet, and one end of buffer cavity away from pressure cylinder is provided with filter membrane;Pressure visualization component, set to pressure cylinder, pressure visualization component is configured to be able to real-time response the internal pressure of buffer cavity, and internal pressure is converted into visual pressure signal, which can be directly observed, to indicate operator to adjust injection speed;The present application is simple in structure, low in cost, operator can accurately master the pressure change in filtration process, and adjusts injection speed or stops injection according to pressure change, eliminates the operation risk of blind pressure.

The invention discloses a forming system and a production method of a socket type pipeline. The forming system comprises a feeding mechanism and a forming mechanism. The forming mechanism comprises a bottom frame which is integrally rectangular, supporting seats are arranged at the two ends of the bottom frame, each supporting seat is provided with two rolling wheel assemblies arranged side by side, each rolling wheel assembly comprises a base and rolling wheels, the rolling wheels are rotatably arranged on the bases, and the projections of the rolling wheels in the axial direction completely cover the projections of the bases; a forming mold is erected on the two supporting seats, the forming mold comprises a cylindrical mold pipe, and the outer diameter of the mold pipe is consistent with the inner diameter of a winding pipe to be formed; one end of the die pipe is provided with a socket forming section which is formed by protruding outwards in the radial direction; any supporting base is further provided with a rotation driving mechanism used for driving the forming mold to rotate. The device has the advantages of being reasonable in structural design, capable of continuously winding and forming pipe bodies and socket heads, beneficial to reducing production cost, improving production efficiency and the like.

A cycloid rotor pump comprises a pump body, a rotor cavity cover, a pump cover, an inner rotor, an outer rotor and an inner sleeve, the inner sleeve is provided with an axial through hollow hole allowing the outer rotor to be installed in a sleeved mode, and the outer wall face of the inner sleeve is provided with a first through hole and a second through hole. The first through hole and the second through hole are provided with a first partition assembly and a second partition assembly which abut against the radial outer wall face of the outer rotor in the radial direction correspondingly, and in the axial projection of the cycloid rotor pump, at least part of the projection of the face, abutting against the outer wall face of the outer rotor, of the first partition assembly falls into a first partition area D1; the projection of the face, abutting against the outer wall face of the outer rotor, of the second separation assembly at least partially falls on the second separation area D2. According to the cycloid rotor pump with the design, on the premise that a radial movement gap is formed between the inner sleeve and the outer rotor, liquid is prevented from flowing back to the position close to the suction inlet from the movement gap of the discharge port, so that the flow loss during working of the cycloid rotor pump is reduced, and the working efficiency of the cycloid rotor pump is improved.

Electric machine for an electric vehicle, comprising a radial flux rotor (40) having a radial flux rotor base body (42) and several radial flux rotor permanent magnets (44) arranged on the radial flux rotor base body (42), two axial flux rotors (50) each having an axial flux rotor base body (52) and several axial flux rotor permanent magnets (56) arranged on the axial flux rotor base body (52), and a stator (30) cooperating with the radial flux rotor (40) and the axial flux rotors (50), which has a stator base body (32) with several stator teeth (35), wherein two circumferentially adjacent stator teeth (35) each define a stator slot (37) in the circumferential direction, wherein a stator winding (34) is arranged in the stator slots (37),and wherein a first axial flow rotor (501) is arranged at a first axial end of the stator (30) and a second axial flow rotor (502) is arranged at a second axial end of the stator (30), wherein the stator teeth (35) each have a T-shaped longitudinal section, such that each stator tooth (35) has a radially inwardly extending radial projection (36), a first axial projection (381) and a second axial projection (382) extending in the opposite direction to the first axial projection (381), such that the radial projections (36) face the radial flow rotor (40) radially surrounded on the outside by the stator (30), the first axial projections (381) face the first axial flow rotor (501) and the second radial projections (382) face the second axial flow rotor (502).

A turbine blade with a blade root, each of which has two axial projections along a longitudinal axis with radial bearing surfaces for bearing against bearing surfaces of a groove of a turbine disc, wherein the blade root has a depression along a longitudinal axis, which depression extends, in particular, over at least half of the blade root in the direction of the longitudinal axis, and / or has a root projection at one end of the blade root, which root projection can make contact only with a bottom of a groove, wherein the root projection has, in particular, a cross section of at most 30% of the area of the bottom. A rotor having at least one rotor disc with at least one groove and at least one turbine blade of this type is provided.

The present invention relates to an injector (1) for injecting a gaseous medium, in particular a gaseous fuel, preferably hydrogen, into a combustion chamber (20) of an internal combustion engine. The injector (1) in this case, in particular, has an axially movable valve closing member (5) for opening and closing at least one opening in a seal seat (7), an actuator (21) for operating the valve closing member (5), and a flow-influencing geometry (10) located downstream of the seal seat (7) in a flow-technically manner. According to the present invention, the flow-influencing geometry (10) is the needle stroke (I h When ) is at its maximum, the following relationship holds: 5 × I h ≥s ≥ 1.5 × I h The following holds true, in which case (s) is the distance between the radially outer contour of the valve closing member (5) in the downstream edge region of the valve closing member and the annular line at the tapered portion (12) in the flow direction of the flow-influencing geometry (10) located below it in the projection view in the axial direction, thereby generating a flow with virtually no loss downstream of the valve closing member (5).

A tubular vibration damping device includes an inner shaft member and an outer tubular member connected by a main rubber elastic body. A plurality of first identification protrusions protruding outward are formed apart in a circumferential direction on one axial end surface of the main rubber elastic body, and a plurality of second identification protrusions protruding outward are formed apart in the circumferential direction on another axial end surface. The first identification protrusion and the second identification protrusion are arranged at positions differing from each other in the circumferential direction in an axial projection, and the first identification protrusion and the second identification protrusion have a comprehensive overall pattern in which weight balance is maintained on a central axis of the main rubber elastic body.

The application discloses a rotor assembly and a servo motor, wherein the rotor assembly comprises a first rotor lamination, a second rotor lamination and a magnetic steel; the first rotor lamination is provided with a plurality of magnetic steel grooves which are arranged at intervals in the circumferential direction, and a pole shoe is formed between the magnetic steel groove and the outer side wall of the first rotor lamination; the axial projection of the second rotor lamination on the first rotor lamination is a first projection, and the magnetic steel groove and at least part of the pole shoe are located outside the first projection; at least part of the magnetic steel is arranged in the magnetic steel groove; wherein a plurality of first rotor laminations are arranged in layers to form a rotor body part, and a plurality of second rotor laminations are arranged in layers to form an inertia part. In the application, part of each pole shoe of the rotor body part is located outside the inertia part, the shielding of the end part of the pole shoe by the inertia part is reduced, and the risk of magnetic flux leakage caused by the axial overlap of the inertia part and the pole shoe structure is reduced. The rotor body part and the inertia part can be formed by one-time stacking and pressing, which is beneficial to simplifying the manufacturing process and improving the production efficiency.

The application provides an ablation catheter and an ablation system. The ablation catheter comprises a catheter assembly and a functional assembly. The catheter assembly comprises a main tube and a support strip, the support strip is arranged in the main tube and the main tube and the support strip are axially movable relative to each other; the functional assembly is connected to the support strip at a distal end and connected to the main tube at a proximal end, the proximal end and the distal end of the functional assembly are capable of moving close to or away from each other along with the axial relative movement of the support strip and the main tube, and the functional assembly is capable of presenting an expanded form or a contracted form along a radial direction; the functional assembly comprises a plurality of support members, and at least part of the support members is provided with a preset angle between one end in the length direction and the other end in the circumferential direction of the functional assembly along the axial projection of the functional assembly, so that the axis of the support member and the central axis of the functional assembly present a preset angle.

This application provides a positioning center, a centering mechanism, and a rock drilling rig, comprising: a base body with a first connecting portion and a second connecting portion, the first connecting portion being connected to the output end of a drive mechanism, and the second connecting portion located on the outer peripheral sidewall of the front end of the base body; and a plurality of first support members, each of the first support members having a first part and a second part at its axial ends, each first part being connected to the second connecting portion, the plurality of first support members being arranged sequentially along the circumference of the second connecting portion, each first support member being obliquely forward in a direction away from the axial centerline of the base body, and each second part being used to abut against a target object, wherein the second parts of the plurality of first support members together constitute a support body, and the projected area of ​​the support body in the axial direction of the base body is larger than the axial projected area of ​​the base body itself. This can improve contact stability, thereby improving the straightness of the drilling.

The application discloses an air flow distribution and seed disturbing structure of a seed metering device, which is arranged on a front shell of the seed metering device, and the front shell and a seed metering disc of the seed metering device enclose a main cavity; the air flow distribution and seed disturbing structure comprises a transition air chamber, which is arranged in an axial direction of the seed metering disc and is located in a position different from the main cavity, and an axial projection profile of the transition air chamber is located in a profile range of the main cavity; the transition air chamber has an air inlet, a first air outlet which is communicated with the main cavity, and a second air outlet; a communication air chamber is communicated with the second air outlet and is communicated with the main cavity through a partition portion provided with a ventilation hole; an axial projection profile of the communication air chamber has a part which exceeds the profile range of the main cavity; and an adjusting mechanism is arranged in the transition air chamber and is used for adjusting a ventilation area of the second air outlet. The air flow distribution and seed disturbing structure of the seed metering device is characterized in that main structures are designed or integrated on the front shell of the seed metering device, and the transition air chamber, the communication air chamber and the adjusting mechanism are reasonably arranged, so that the occupied space of the air flow distribution and seed disturbing mechanism is significantly reduced, and the compactness of the seed metering device is improved.

The utility model provides a kind of no limit positioner of rigid locking, it includes: cylinder barrel;Outer sleeve, its rear end is movably sleeved on the outside of the cylinder barrel along its axial direction;Formed with the locking spring that can be folded along the radial direction of the outer sleeve inward and outward inclined on the outer sleeve, the locking spring is formed with inward hook portion;And lock release adjustment cylinder, at least partially rotatably sleeved on the outer sleeve around the axis of the outer sleeve and with the outer sleeve in axial limit cooperation;The lock release adjustment cylinder has the concave-convex inner surface that is in contact with the locking spring;The concave-convex inner surface of the lock release adjustment cylinder rotates and drives the locking spring to fold inward or recover outward, so that in the axial projection view of the outer sleeve, the projection area of the hook portion overlaps with the projection area of the cylinder barrel or is located outside the projection area of the cylinder barrel, to lock the no limit positioner in maximum stretched state or unlock to further contract length.

Forming device (13), in particular spindle press, comprising: a) a forming machine for at least one workpiece (11) along an axis of movement (M S ) movable guided machining head (16) with at least one machining tool (22), and b) a machining area (17) opposite the machining head (16) with at least one machining station designed for forming the workpiece (11), and further comprising c) a rotary table (1) with an axis of rotation parallel to the direction of movement (M D ) and with respect to the axis of rotation (M D ) workpiece fixtures arranged circumferentially offset from one another (8), wherein d) the rotary table (1) is designed and rotatably mounted such that each of the workpiece fixtures (8) can be moved by rotating the rotary table (1) into at least one first working position (19) located within the machining area (17), and into at least one second working position (20), which in axial projection with respect to the axis of movement (M) S ) is located at least partially laterally outside a cross-sectional area (Q) of the machining head (16), wherein the machining head (16) has several upper tools (22) for forming workpiece machining and the rotary table (1) has several lower tools (8), and wherein the upper and lower tools (22, 8) are arranged such that several forming steps can be carried out in parallel by the machining head (16) during operation.

The utility model relates to a kind of stable guide wire, bending sheath and the guide system for atrial septum puncture, wherein, stable guide wire includes the support section and contact section set gradually, support section is set in proximal end, it is straight bar, for providing support force;Contact section is set in distal end, it has larger cross section than support section on axial projection, for contacting with endocardium in the process of atrial septum puncture, and the displacement caused by heart beat is buffered;Bending sheath, including first cavity and second cavity, first cavity is axially through, for the interventional instrument for setting atrial septum puncture;Second cavity is arranged in parallel with first cavity, second cavity is used for setting stable guide wire, and at least contact section of stable guide wire can be worn out by the distal end opening of second cavity.