178 results about "Surface tooth" patented technology

A detachable fastener includes a screw element and a securing ring. The screw element and the securing ring each include cooperating wedge-shaped surface tooth arrangements and two different pairs of stop surfaces. The wedge-shaped surface tooth arrangements face one another and form sliding surfaces sliding upon one another in a loosening direction of rotation resulting in an increase of the axial force. The first pair of stop surfaces transmits torque in a tightening direction of rotation. The second pair of stop surfaces transmits torque in a loosening direction of rotation. The stop surfaces are arranged with a clearance existing between one another such that the wedge-shaped surface tooth arrangements can slide upon one another without skipping.

A locking device includes a main housing with one or more plunger sets therein for gripping a cable. The plunger sets each have two or more pieces, for example plunger pieces, that are partially within a bore in the main housing. The plunger halves or pieces have teeth on inner surfaces, for gripping a cable that runs through the bore, between the plunger halves or pieces. A spring within the bore biases the plunger set to one side of the bore, a location in which the plunger halves or pieces are pressed together, causing the inner surface teeth to bite into the cable to secure the cable. A nut is threadedly connected to a threaded outer surface of the plunger halves, outside of the bore, to allow the plunger set to be moved within the bore, to allow disengagement of the cable from the teeth.

The invention discloses an abrasive belt grinding machining center with a contact wheel depot. The abrasive belt grinding machining center comprises a base, a stand column, a five-degree-of-freedom workbench, a power device, an abrasive belt supporting tensioning device, a grinding head device, the contact wheel depot and an automatic wheel replacing device. The five-degree-of-freedom workbench is composed of an X-direction saddle, a Y-direction saddle, a Z-direction saddle, a rotating table, a centre and a servo motor, and grinding machining of planes, revolution bodies and free curve faces can be achieved; an abrasive belt and a tensioning device are arranged on an abrasive belt supporting plate, and the abrasive belt is in the tensioning state all the time under the constant pressure effect of a tensioning air cylinder; the grinding head device can move in the X direction and the Z direction, so that the movement requirements in the grinding machining process and the wheel replacing process are met; contact wheels with different diameters, hardness degrees and surface tooth shapes are distributed on a rotary disc of the contact wheel depot in a circumferential manner; and an automatic wheel replacing mechanical arm is provided with four mechanical arm claws, and every two paired mechanical arm claws are used for clamping a contact wheel component to achieve the wheel replacing function. The abrasive belt grinding machining device is suitable for grinding machining of the planes, the revolution bodies and the free curve faces, and grinding machining with different surface quality requirements and different process requirements. The machining accuracy and the stability of parts are remarkably improved, the production period is shortened, and economic benefits are improved.

The invention discloses a machining method for a spherical involute toothed oblique straight bevel gear made by taped teeth. The machining method for a bevel gear adopts methods of gear skiving, gear milling and gear grinding. The methods of gear skiving, gear milling and gear grinding have the common technical characteristics that an oblique straight line ML on the big circular plane (Q) of a spherical surface, which is tangent to a toothed portion tangent circle with the radius of R0, represents a skiving cutter edge on an imaginary gear or uses a tangent plane which contains the ML and is perpendicular to the big circular plane (Q) of a spherical surface as the rotating plane of a single angle milling cutter end edge or the end surface of a grinding wheel, so a gear blank base cone with the base cone angle Delta b is tangent to the big circular plane (Q) of a spherical surface and the relative pure rolling is completed, the involute surface tooth cutting of the base cone is carried out to obtain the oblique straight bevel gear flank with the spherical involute teeth. In order to avoiding overcutting, the ML line for representing a skiving gear cutter edge or a straight line along the gear root cuts out along a straight line of the gear root with the speed of vW which is equal to R0 Omega sinaOmega t/cos<2> t or along the ML self straight line with the speed of vW which is equal to R0 Omega/cos<2> Omega t. One side flank of a gear is cut according to single tooth division. The machining of two side flanks is completed by adopting double cutter heads and double stations to cut teeth. A new machine tool is designed according to the method.

The invention relates to the field of anti-counterfeiting techniques for seals, in particular to an intelligent seal. A service protection mechanism of the intelligent seal in an embodiment of the invention comprises a service protection barrier column 12, service protection limiting seats 15, a guide column 16, a displacement sensor 9 and a return spring 17; a protection relief mechanism of the intelligent seal comprises rotating coils 7, a fixed coil 19 and an angular displacement sensor 6; end-surface teeth are staggered from one another or are aligned with one another under the rotation actions of the rotating coils 7, so that protection or protection relief can be implemented. The intelligent seal has the advantages that service information of the intelligent seal can be traced, the intelligent seal only can be used by authorized operators, authenticity of seal impression on files can be verified, and abuse, embezzlement and counterfeiting of the intelligent seal are prevented; sealing information is recorded at first by an electronic information technique, and then sealing only can be performed after legitimacy of the sealing information is confirmed; authority authentication constraints are set, so that a seal holder is prevented from performing sealing against true will of the seal holder to a certain extent; the sealing information is stored in a management database, so that a file holder can apply for verifying the authenticity of the seal impression on the files.

The invention discloses an involute spherical gear transmission pair. The involute spherical gear transmission pair comprises two spherical gears, wherein involute gear teeth are uniformly distributed on the circumferences in the weft directions of the spherical surfaces of spherical cap sections on spherical caps; the tooth thickness directions are along the weft directions of the spherical caps; the numbers of the teeth on the wefts at different heights are variable; the number of the teeth on low-latitude parts is large; the number of the teeth on high-latitude parts is small; a plurality of tooth rings from the high latitude to the low latitude are formed. The spherical gears are sectioned over the axis; the outer contours of the sections of the tooth rings form the outer contours of the involute spherical gear teeth along the meridians in the tooth thickness directions; the outer counters of the gear teeth formed by the sections of the tooth rings are divided into two groups; odd-number groups and even-number groups are respectively the same as the shapes of the end surface teeth of two straight gears of which the gear teeth are placed in a staggered way.

A method for restoring the inner bore of a gear coupling is disclosed. Dimensions of all parts of the gear coupling are measured to check whether all the dimensions satisfy laser coating restoration standards, the surface fatigue layer of the inner bore of the gear coupling is removed, Ni55 and nanometer WC powder which are prepared in proportion are fully mixed in a mechanical powder mixer through adopting a mechanical mixing method, the Ni55 and the nanometer WC powder are coated on the surface of the inner bore of the gear coupling through adopting a coaxial powder sending method and through scanning by adopting a large-power CO2 laser, and the gear coupling undergoes heat treatment and then is slowly cooled with a furnace; and the inner bore of the cooled gear coupling is machined to obtain the gear coupling with the dimensions and the surface process which satisfy requirements, the gear coupling undergoes processing precision detection, and finally the gear coupling is packaged. Compared with the prior art, the method disclosed in the invention has the advantages of continuous use, better performances and long service life of the gear coupling, simple technology, strong controllability, less energy consumption and the like.

The invention discloses a production process of an automotive middle-rear axle transmission meshing sleeve. The production process comprises the following steps of step 1, feeding; step 2, blank forming; step 3, shot blasting; step 4, coating heating; step 5, heating and upsetting; step 6, warm forging extrusion and residual heat annealing; step 7, cold extrusion on a straight tooth spline arranged on the inner wall of a middle hole; step 8, shot blasting and turning according to design drawings; step 9, carburizing and quenching and step 10, sandblasting and oil coating packaging. According to the production process of the automotive middle-rear axle transmission meshing sleeve, the warm extrusion is combined with the cold extrusion to forge the end surface tooth shape and the straight tooth spline which is arranged on the inner wall of the middle hole, the milling machining on the end surface tooth shape and the straight tooth spline which is arranged on the inner wall of the middle hole does not need to be performed after forging, and accordingly the production processes are less, the cutting quantities are less, the tooth shape forging extrusion forming is high in accuracy and high in density, the impact resistance is good, the quality is good, and accordingly the technical requirements of the automotive middle-rear axle transmission meshing sleeve are fully met and meanwhile the production process conforms to the development trend of the current automotive manufacturing.

The invention relates to a negative pressure angle conical working tooth surface differential lock. A slidable joint sleeve and a stationary joint sleeve are connected together via the joint between an end surface tooth of the slidable joint sleeve formed on the end surface of the slidable joint sleeve and an end surface tooth of the stationary joint sleeve formed on the end surface of the stationary joint sleeve. The slidable joint sleeve is provided with an end surface tooth of the slidable joint sleeve and a slidable joint sleeve body; the tooth top surface and tooth groove surface of the end surface tooth of the slidable joint sleeve are parallel to each other in the axial section and are higher outside and lower inside; the acute angel between the tooth top surface and the tooth groove surface and a rotation axis is beta; a bore of the slidable joint sleeve body is an internal spline of the slidable joint sleeve; the stationary joint sleeve is provided with an end surface tooth ofthe stationary joint sleeve and an integrally-formed stationary joint sleeve body; the tooth top surface and tooth groove surface of the end surface tooth of the slidable joint sleeve are parallel toeach other in the axial section and are lower outside and higher inside; the acute angel between the tooth top surface and the tooth groove surface and a rotation axis is also beta; and a bore of thestationary joint sleeve body is an internal spline of the stationary joint sleeve. In the invention, slide wheels or axles are temporarily and rigidly stopped so as to improve the cross-country capability.

The invention provides a single-input double-output transmission device. The single-input double-output transmission device comprises a base, and further comprises planet wheels, an input shaft, a fixed gear, a rotary supporting frame and transmission shafts rotationally connected with the rotary supporting frame. The input shaft is provided with a central gear. The transmission shaft is provided with eccentric bearings and a transmission gear engaged with the central gear. The planet wheels are provided with inner gear rings and bearing holes, the tooth number of the inner gear rings is 1-4 larger than that of the fixed gear, and the fixed gear is fixedly connected with the base. The eccentric bearings are installed in the bearing holes. The rotary supporting frame is provided with an outer gear ring and a first end surface tooth, the outer gear ring is coaxial with the input shaft, and the plane where the first end surface tooth is located is perpendicular to the input shaft. The two ends of each transmission shaft are rotationally connected with the rotary supporting frame, the rotary supporting frame is used for supporting the transmission shafts, other supporting parts are not needed, and thus the size of the whole transmission device is relatively small.

A ratchet wrench includes a handle; a wrench head comprising a first cavity and a second cavity communicating therewith; a drive gear and socket combination rotatably disposed in the first cavity and comprising surface teeth; a reversing pawl comprising pawl teeth on one surface, the pawl teeth meshed with the teeth of the drive gear and socket; a pivotal unit pivotably disposed in the second cavity, the pivotal unit urging against the other surface of the reversing pawl and being adapted to reciprocally pivot about the reversing pawl; and a reversing button assembly moveably disposed on the wrench hand and aligned with an axial direction of the handle. The reversing button assembly is adapted to manually move along a straight line to activate the pivotal unit which pivots the reversing pawl so as to permit the drive gear and socket combination to rotate clockwise or counterclockwise.

The invention discloses a transmission system of a portable mini tiller. An output shaft of an engine (1) stretches into a main transmission case (5) and is connected with a driving wheel shaft (5a); the lower end of the driving wheel shaft (5a) stretches downwards out of the bottom surface of the main transmission case (5); end surface teeth are uniformly distributed at the periphery of the lower end of the driving wheel shaft (5a) in an integrated manner; a high-speed driving wheel (5b) and a low-speed driving wheel (5c) are arranged on the driving wheel shaft (5a); a high-speed driven wheel (5d) and a low-speed driven wheel (5e) are respectively arranged on a driven wheel shaft (5f); the lower end of the driven wheel (5f) is connected with the input end of a worm-gear transmission case (6); the worm-gear transmission case (6) is positioned under the rear end of the main transmission case(5); tilling blades (7) or walling wheels are mounted on the output shaft of the worm-gear transmission case (6). The portable transmission system disclosed by the invention has a high-speed gear and a low-speed gear, and adopts a belt to perform transmission, so that the transmission is stable and reliable; therefore, the portable transmission system is wide in application range.

The invention discloses a checking tool capable of measuring 0.7-dimension end surface teeth. A shaft jacket has a hollow cavity with two openings formed at two ends; one end of the shaft jacket fixedly sleeves the sleeve of a dial indicator; the other end of the shaft jacket sleeves one end of a guide jacket; a guide hole with two openings formed at two ends is formed in the center of the guide jacket along the axial direction of the guide jacket; a measuring head is arranged in the hollow cavity of the shaft jacket and the guide hole of the guide jacket; the measuring head can slide along the guide hole of the guide jacket; one end of the measuring head contacts with the measurement head of the dial indicator; the other end of the measuring head extends out from the guide hole of the guide jacket; a guiding jacket sleeves the other end of the guide jacket; and the guiding jacket can slide along the axial direction of the guide jacket. When the checking tool is used, the guiding jacket is attached to a standard piece, and the checking tool is vertical to the standard piece assuredly; the other end of the measuring head is located in the tooth groove of the standard piece; the shaft jacket is pressed downwards vertically; the standard piece is measured; zero setting is performed on the dial indicator; the checking tool is utilized to measure a piece; the reading of the dial indicator is the difference of the actual size of the piece and the size of the standard piece; and the actual size of the piece can be obtained based on the size of the standard piece.

The invention discloses a planetary multi-speed transmission method and device. According to the device, a driving taper gear is connected with an input shaft, and the driving taper gear is engaged with a driven taper gear; the driven taper gear is fixedly connected with a cylinder gear and rotates around a rotary arm; the end surface gear assembly comprises multiple ferrule end surface gears, each ferrule end surface gear comprises end surface teeth and straight teeth, the end surface teeth are arranged on the end surface of each circular ferrule, the straight teeth are arranged along the outer cylinder surface periphery of the circular ferrule of each ferrule end surface gear, the end surface teeth of each ferrule end surface gear are engaged with the cylinder gear, and the straight teeth of each ferrule end surface gear are selectively fixed to an inner tooth ring of a speed regulating mechanism in an engaged mode; the rotary arm is perpendicular and orthogonal to the input shaft and is fixed to the input shaft, so that an integral part is formed. According to the planetary multi-speed transmission method and device, a non-stage transmission range is changed into multiple optional fixed speed ratios, the performance of a stage transmission is achieved, the whole device is simple in structure, small in size and light in weight, and gear transmission serves as the transmission mode so that the transmission efficiency is high.

The invention provides a tooth form geometrical parameter measurement method for online machining of a large-diameter multi-thread ring gauge. The tooth form geometrical parameter measurement method for online machining of the large-diameter multi-thread ring gauge comprises the steps that machining equipment is locked, and a part measurement basis is adjusted; the thread minor diameter D1 measurement dimension is re-checked through an inside micrometer, and the thread minor diameter D1 is determined (measured); thread surface tooth form data are collected through laser scanning; the measurement value P of the thread pitch, and the measurement value theta of the tooth form angle theta are determined (measured) through fitting calculation; a steel ball calibration measurement head with the proper diameter is selected through calculation based on the theoretical thread tooth form dimension; dotting is conducted for thread measurement, the machining allowance d is determined, and the machining quantity is calculated and determined; and dotting is conducted for measuring the actual thread pitch diameter, all geometrical parameters of the tooth form of the large-diameter multi-internal-thread ring gauge are obtained. By adoption of the measurement method, the parameters of the tooth form of the ring gauge can be checked on the ring gauge machining site and are provided for machining personnel for high-precision machining, and the rate of finished ring gauges is guaranteed; and the detection precision is high, and the tooth form geometrical parameter measurement method is suitable for large-diameter multi-internal-thread ring gauges of various specifications.

The invention relates to a bicycle vibration energy conversion mechanism and a bicycle adopting the same. The bicycle vibration energy conversion mechanism comprises a force transfer mechanism and a shell used for being arranged on a fixed frame of the bicycle, wherein one end of the force transfer mechanism is in transmission connection with a swing frame, capable of vertically swinging, of the bicycle; the other end of the force transfer mechanism is in transmission connection with a swing arm which is rotatably matched with the inner wall of the shell and is suitable for the swing arm to carry out reciprocating swinging; an arc-shaped surface tooth at the lower end of the swing arm is in transmission connection with an input gear which is located on the lower part and is rotatably matched with a fixed shaft; the input gear is in transmission connection with the inner end of a clockwork spring at the rear side by a ratchet wheel mechanism; the outer end of the clockwork spring is in transmission connection with a driven gear on a rotating shaft in a matching way by utilizing a bearing and a one-way clutch provided with gear teeth on the outer side face; the driven gear is suitable for being in transmission connection with the rotating shaft; and the end part, stretching out of the shell, on the rotating shaft is suitable for being fixedly connected with a chain wheel used for driving a driving wheel of the bicycle. The bicycle vibration energy conversion mechanism is capable of accumulating vibration energy and then outputting the vibration energy to wheels so as to drive the bicycle to advance.

The invention relates to a production processing technology of dual-surface tooth profile chamfering cutter used for a cylindrical gear, belonging to the technical field of tool processing for chamfering gears, the process technology solves the problem that the processing technology of the dual-surface chamfering cutter in the prior art is complex. The production processing technology of dual-surface tooth profile chamfering cutter used for a cylindrical gear comprises the following steps of the hobbling processes: 1. the helical tooth is hobbed on a hobbing machine by a gear hob; 2. a back taper angle Alphai is hobbed, the starting position of hobbing of the gear hob is that H is equal to Rgsin Alphai and T is equal to Htg Alphai; 3. the tooth thickness of the large end is kept unchanged, the left tooth surface of the reverse tapered teeth is hobbed by a first tooth at the right end of the hob; 4. the right tooth surface of the reverse tapered teeth is hobbed by a first tooth of the left end of the hob. The process has the beneficial effects that operations completed originally by a plurality of processes and a plurality of cutters of the chamfering cutter can be completed by a single hob and special cutters are not required, the method is simple, the precision is reliable, secondary cutter is less used and the cost is low.

The invention belongs to the technical field of electric valve actuators, and in particular, relates to a pneumatic jaw clutch. The pneumatic jaw clutch comprises a left half clutching part and a right half clutching part; the left half clutching part comprises a left half clutch, a rotating shaft, a double-row angular contact ball bearing, a locking nut, a brake gasket, a spring base and a piston; the right half clutching part comprises a right half clutch, a cylinder and an output shaft; the left half clutching part and the right half clutching part are connected through end surface teeth; the end surface teeth adopt a design of self-locking structures; and a pretightening spring is arranged between the left half clutching part and the right half clutching part. The pneumatic jaw clutchachieves a coupling effect to transfer an output torque in normal work, and uses a final energy air source for driving the clutch to open a valve to achieve an emergency function in emergent work.