41results about How to "Realize reverse self-locking" patented technology

The invention relates to a mixing device and a mixing method and aims to overcome defect that the conventional mixing device is non-uniform in mixing and low in mixing efficiency. The mixing device comprises a vertical two-sided bracket, a mixing barrel and a driving device, wherein a rotating shaft penetrates the center of the mixing barrel, bearing blocks for supporting the rotating shaft are arranged at two ends of the bracket, the driving device is mounted on a platform on one side of the bracket and connected with the rotating shaft through a pair of mutually meshed gears, a through hole is formed in the center of one end of the rotating shaft and serves as a shield gas inlet, a handle type butt clamp butterfly valve is arranged at a top feeding port of the mixing barrel, materials are fed through an opening of the butterfly valve, and a fixed flange is arranged at a bottom outlet of the mixing barrel and is controlled by a valve on one side to open and close. During mixing, the mixing barrel can turn over in the range of 0-360 degrees, the materials at the bottom of the barrel can be conveyed to the upper part of the barrel for mixing, a mixing dead angle is avoided, the materials are mixed more sufficiently and uniformly, and the mixing efficiency is high and can reach 2 ton / h.

The invention discloses a bisection moving rocker arm mechanism driven by worm wheels and a worm, which comprises a worm, a left worm wheel, a right worm wheel, a left rocker arm, a right rocker arm, a left shaft and a right shaft, wherein the worm is respectively meshed with the left worm wheel and the right worm wheel; the left worm wheel and the right worm wheel are respectively rigidly connected with the left rocker arm and the right rocker arm; the center line of the left shaft and the center line of the right shaft are respectively coincident with the center line of the left worm wheel and the center line of the right worm wheel; the left shaft and the right shaft are respectively fixedly connected with the left rocker arm and the right rocker arm; the left worm wheel and the right worm wheel are driven by the worm to rotate relatively to the respective center line, i.e. the left shaft and the right shaft; and the left rocker arm and the right rocker arm fixedly connected with the left worm wheel and the right worm wheel are driven to respectively move relatively to the left shaft and the right shaft so as to realize the moving bisection of the two rocker arms. The bisection moving rocker arm mechanism driven by the worm wheels and the worm has the advantages of compact structure, excellent performance and good application prospect in the technical field of machinery and automotive engineering, and the bisection movement and the self-locking function of the mechanism can be realized.

The invention relates to a positioning device, in particular to a frame welding positioning structure. The frame welding positioning structure comprises a whole machine bracket, a power mechanism, a transverse movement mechanism, a vertical movement mechanism, a transmission mechanism I, a transmission mechanism II, a switching mechanism, a switching fixed block, a horizontal movement mechanism, asliding support rod, a positioning part and a sliding column. The power mechanism drives the transverse movement mechanism and the vertical movement mechanism to rotate simultaneously, and the switching mechanism controls the power switching of the lateral motion mechanism and the vertical motion mechanism when the switching fixed block slides. When the transverse movement mechanism moves, the positioning part is driven to slide on the sliding support rod, the lateral position of the positioning part is changed, when the vertical movement mechanism rotates, the vertical movement mechanism drives the sliding support rod to move up and down, the sliding support rod drives the positioning part in a sliding groove to slide to change the upper and lower positions of the positioning part, a horizontal moving handle is turned to drive the positioning part to move horizontally, and the positioning part can be controlled and moved by three freedom degrees in the space.

The invention belongs to the technical field of railway vehicle equipment and relates to a sleeper power-driven lifting device for going to bed and getting out of bed. The sleeper power-driven lifting device comprises a stand column, a handle, a pedal device, a control device and a drive motor. A vertical lead screw is arranged in a guiding sliding groove in the stand column. The output end of the driving motor is connected with the lead screw, the handle is fixedly connected with a first lead screw nut, and the first lead screw nut is arranged on the lead screw in a sleeving mode. The pedal device is fixedly connected with a second lead screw nut, and the second lead screw nut is arranged on the lead screw in a sleeving mode and located below the first lead screw nut. The handle and the pedal device are arranged on the same side of the stand column. The control device comprises a control switch and a limiting switch. The control switch is arranged on the handle, and the limiting switch is arranged on the stand column. The control switch and the limiting switch are electrically connected with the driving motor. The sleeper power-driven lifting device is simple in structure and high in practicality and stability. The pedal device and the handle synchronously ascends and descends, a passenger can go to bed and get out of bed conveniently, fall accidents are avoided, and time and labor are saved when the passenger goes to bed and gets out of bed.

The invention provides a peripheral type pressing and locking device of a large-sized space unfolding structure. The peripheral type pressing and locking device comprises a box body, a worm fixed on one side of the box body, a worm wheel which is meshed with the worm and is connected with the box body through a worm wheel rotating shaft, a pressing and locking hook, one end of which is connected with the box body to enable the pressing and locking hook to rotate in the box body, the other end of which is provided with a sliding chute, and the tail end of which acts on a pressing point, and a swing rod, wherein one end of the swing rod is fixedly connected with the worm wheel rotating shaft and the other end of the swing rod is connected with the sliding chute of the pressing and locking hook in a sliding manner. The invention further provides a pressing method of the peripheral type pressing and locking device of the large-sized space unfolding structure. The peripheral type pressing and locking device provided by the invention is mounted and fixed at the periphery of a folded array plane to enable an unfolding mechanism to be of a compact and reliable structure in a launching stage, and can avoid the effective working surface of the array plane; and the peripheral type pressing and locking device is simple in mechanical structure and easy to operate.

The invention relates to a charging barrel overturning device and a method for overturning a charging barrel. The charging barrel overturning device comprises a gantry frame formed by welding vertical channel steel on two sides, an upper transverse beam and a lower transverse beam, a front fork at the bottom end of the frame, a concave lifting fork above the front fork, a stand column, a horizontal hoisting rod, a barrel cover oil cylinder, a funnel type barrel cover, the charging barrel, a holding device, a rotary shaft, a speed reducing device, a main oil cylinder and chain wheels and chains on the two sides of the top of the main oil cylinder; a control cabinet and a control cabinet panel are mounted on an operation platform; a bracket hoisting control rod is arranged on one side of the platform; the main oil cylinder drives pulleys on the two sides of the rear end of the concave lifting fork through the chain wheel and the chain to roll up and down along hollow cavities of the channel steel so that the concave lifting fork is hoisted along the rolling. The charging barrel overturning device is used for lifting and overturning the charging barrel and has good safety; the operation is easy and time is saved, the labor intensity of workers is greatly alleviated, the working efficiency is improved, and the effective conveying of metal powder materials is realized.

A coaxial double-winding-drum self-locking winch comprises a base, wherein a drive motor, a coupler, a speed changer and a winding-drum device are arranged on the base. The coaxial double-winding-drum self-locking winch is characterized in that the winding-drum device comprises a pair of winding drums arranged on the same spindle, the speed changer is a turbine worm speed changer and located between the two winding drums, a turbine key is connected onto the spindle and rotates with the spindle synchronously, and a worm and a turbine are matched and connected with the drive motor through the coupler. A brake is arranged on the spindle on the outer sides of the winding drums and comprises a brake shoe and an electric hydraulic thruster, wherein the brake shoe is held on a brake wheel at the outer end of the spindle in a surrounding mode, and the electric hydraulic thruster controls opening and closing of the brake shoe through a lever. The coaxial double-winding-drum self-locking winch has the advantages that security coefficients are improved by adopting double coaxial winding drums, inverted self locking is achieved through the worm and the turbine, outage and braking are achieved through the additional brake, and the security coefficients are improved obviously.

The invention discloses a fixed caliper disc type electronic parking brake. The electronic parking brake comprises a drive motor, a first speed reducing mechanism, a second speed reducing mechanism and a third speed reducing mechanism which are sequentially connected. Output torque of the drive motor is amplified through three-stage speed reduction. Motion converting mechanisms are connected behind the three-stage speed reducing mechanisms, and convert circular motion output by the third speed reducing mechanism into linear motion. The two motion converting mechanisms are arranged. Each motion converting mechanism is connected with one friction plate. The friction plates can do linear motion under driving of the motion converting mechanisms so as to clamp a brake disc. The fixed caliper disc type electronic parking brake is simple in structure, small in occupied space and size, easy to arrange, short in brake response time and high in safety, physical output of a driver is small, and hill starting operation is easy. The invention further discloses a car, a motorcycle, a refitted vehicle and a racing bicycle with an internal combustion engine as a power source.

The invention discloses an energy-saving and body-building simple lifting parking device. The energy-saving and body-building simple lifting parking device comprises a steel structure frame, a transmission system, a lifting vehicle plate and a counterweight system, wherein the transmission system includes a handwheel assembly, a reducer assembly, a traction sprocket group and a direction changingdevice, and the handwheel assembly is arranged on one of rear columns; a sprocket of the handwheel assembly and a sprocket of the direction changing device form a circular chain, a bevel gear of the direction changing device meshes with a bevel gear of the reducer assembly, the reducer assembly is in key connection with a driving shaft, double-row sprockets are arranged at the two ends of the driving shaft, one ends of chains on the double-row sprockets are connected with lifting points of the lifting vehicle plate, and the other ends of the double-row sprockets are connected with the counterweight system; the lifting points are arranged on the four corners of the lifting vehicle plate; the counterweight system is pulled to move up and down by the chains of the double-row sprockets; the handwheel assembly is rotated, so that power is transmitted to the direction changing device by chain transmission of the sprockets, and the direction changing device transmits the power to the reducerassembly through the bevel gear to drive the up-and-down movement of the lifting vehicle plate by transmission of a worm and a gear. The energy-saving and body-building simple lifting parking device has the advantages that the power source is manpower, body building and health are achieved, and the energy is saved.

The invention provides an adjustable tray warehouse which comprises a tray frame (1), a width adjustment mechanism and a depth adjustment mechanism, wherein the tray frame (1) comprises a left side wall (2), a right side wall (3) and a rear side wall (4); the width adjustment mechanism is used to adjust the distance between the left side wall (2) and the right side wall (3); and the depth adjustment mechanism is used to adjust the depth of the tray frame (1). The width and the depth of the adjustable tray warehouse are adjustable, and the warehouse can be used to store trays with different specifications.

The invention relates to a manual and automatic dual-mode rotating device and computer equipment. The manual and automatic dual-mode rotating device comprises a center shaft driving an object to rotate, a compound worm gear sleeving an excircle of the center shaft and capable of adjusting holding force, a self-locking worm meshed with the worm gear, and a motor driving the self-locking worm to rotate. The device solves the problem that when external torsion (a manual rotating mode) is applied onto the motor with a workload (an automatic rotating mode), the motor is not influenced by the external torsion, so that the motor is avoided from damage in the manual rotating mode. The manual and automatic dual-mode rotating device and computer equipment are applied to the field of rotating devices.

The invention discloses a fixed-caliper disc type electronic parking brake, which comprises a sequentially connected driving motor, a first deceleration mechanism, a second deceleration mechanism and a third deceleration mechanism, and the output torque of the driving motor is amplified after three stages of deceleration. The three-stage reduction mechanism is connected with a motion conversion mechanism, which converts the circular motion output by the third reduction mechanism into a linear motion. The motion conversion mechanism is provided with two sets, and each set of motion conversion mechanism is connected to a friction plate. Driven by the motion conversion mechanism, the sheet can move linearly to clamp the brake disc. The fixed caliper disc type electronic parking brake provided by the present invention has the advantages of simple structure, small space occupation, easy arrangement, short braking response time, little physical exertion for the driver, simple start-up operation on a slope, and high safety. The invention also discloses an automobile, a motorcycle, a modified car and a racing car with an internal combustion engine as a power source.

The invention discloses a bisection moving rocker arm mechanism driven by worm wheels and a worm, which comprises a worm, a left worm wheel, a right worm wheel, a left rocker arm, a right rocker arm, a left shaft and a right shaft, wherein the worm is respectively meshed with the left worm wheel and the right worm wheel; the left worm wheel and the right worm wheel are respectively rigidly connected with the left rocker arm and the right rocker arm; the center line of the left shaft and the center line of the right shaft are respectively coincident with the center line of the left worm wheel and the center line of the right worm wheel; the left shaft and the right shaft are respectively fixedly connected with the left rocker arm and the right rocker arm; the left worm wheel and the right worm wheel are driven by the worm to rotate relatively to the respective center line, i.e. the left shaft and the right shaft; and the left rocker arm and the right rocker arm fixedly connected with the left worm wheel and the right worm wheel are driven to respectively move relatively to the left shaft and the right shaft so as to realize the moving bisection of the two rocker arms. The bisection moving rocker arm mechanism driven by the worm wheels and the worm has the advantages of compact structure, excellent performance and good application prospect in the technical field of machinery and automotive engineering, and the bisection movement and the self-locking function of the mechanism can be realized.

The invention discloses a goods delivery device of a vending machine goods channel.The goods delivery device comprises a drive motor, a worm, a worm gear, a cylindrical gear, an output gear, a circuit board, a main control panel and a block piece; a motor shaft of the drive motor is connected with the worm, the worm is meshed with the worm gear, a coaxial gear on the worm gear is meshed with the cylindrical gear, a coaxial gear on the cylindrical gear is meshed with the output gear, and the output gear is provided with a gear connecting piece; the main control panel is connected with the circuit board, the circuit board is connected with a microswitch and the drive motor, and the microswitch is provided with an elastic sheet; the block piece is arranged on the plane of the output gear, and the position of the elastic sheet and the position of the block piece meet the requirement that a rotating circle formed by the rotating center of the block piece and the rotating center of the output gear intersects with the elastic sheet.According to the goods delivery device, the structure is small and exquisite, a gear box is small in size, the occupied space is small, the goods storage space of the goods channel is increased, disassembly and assembly are convenient, the resource utilization rate of the gear box is increased, and the maintenance cost is reduced.

The invention discloses a thin-walled parts turning fixture, which comprises a cylindrical clamping body. The clamping body includes an intermediate clamping body, a rear cover plate fixed on the rear end surface of the intermediate clamping body, and a front cover fixed on the front end surface of the intermediate clamping body plate, a stepped surface is provided between the front outer peripheral surface of the intermediate folder body and the rear outer peripheral surface of the intermediate folder body, and cylindrical positioning pins and diamond-shaped positioning pins are arranged on the stepped surface; the front part of the intermediate folder body passes through After the annular chassis of the thin-walled parts is to be processed, the annular chassis is matched with the step surface, and the cylindrical positioning pin and the diamond-shaped positioning pin on the step surface are respectively inserted into two of the three holes on the annular chassis; It is provided with an inner support mechanism and a pressing plate mechanism that cooperate with each other to realize the fixing of the thin-walled parts to be processed. The invention can well solve the positioning or clamping of the thin-walled parts to be processed and the deformation in the processing process, thereby ensuring the processing accuracy requirements of the thin-walled parts to be processed.

An extensible three-dimensional parking platform based on internet of things comprises three parking platform layers for storing vehicles, a lifting device for driving the vehicles to rise or fall, atraversing device for conveying a vehicle to a specific parking space, a vehicle carrying plate for conveying a vehicle to a specific parking space and stably parking the vehicle, a man-machine interaction panel for a user to operate and a control box of a system. According to the system of the internet of things, an STM32 master control chip is connected to the internet through a wifi module or a4G module, and is connected to a cloud server, centralized parking space resource information storage and management deploying are realized through the cloud server, and meanwhile, various service interfaces such as Wechat and APP are provided for parking customers. While the space utilization rate is ensured, the vehicle storage efficiency is improved, secondarily, the movement module is highlyintegrated, the extensibility is high, the system of the internet of things is introduced, functions of storage ordering, parking space sharing and the like are fulfilled, and the problem of difficulty in parking is solved from the perspective of mismatch between supply and demand of parking spaces.

The invention discloses an auxiliary tooling for grinding machine processing, which comprises a base and a horizontal clamping device; a fixing groove is arranged on the top of the base, and a plurality of annular vacuuming grooves are arranged in the fixing groove, the overall shape of the vacuuming groove is concave, and the pumping The cross-section of the vacuum tank is circular; and several vacuum tanks are connected to each other, the top of the vacuum tank is provided with a number of branch holes, the vacuum tank is connected with an air hole, and one side of the fixed tank is provided with a horizontal clamping device , at the same time, the horizontal clamping device is located in the inner recess of the overall concave-shaped vacuum pumping groove; the horizontal clamping device includes a movable groove, a trapezoidal screw and a screw nut, the movable groove is set at the bottom of the fixed groove, and the horizontal of the movable groove The cross-section is convex; the invention provides vertical binding force for the processed workpiece through the vacuum groove, and provides horizontal binding force for the workpiece through horizontal clamping and fixing grooves, so that the workpiece can be fixed easily and conveniently.

The invention discloses a multilateral well completion pipe string reentry leader which relates to the technical field of manufacturing of downhole tools of the petroleum and natural gas industries. The multilateral well completion pipe string reentry leader comprises a central pipe, an upper body, an elastic claw, a lower body, a horse tooth-shaped ring and an adjustment ring, wherein the upper body is sleeved outside the central pipe and connected with the central pipe together, and the lower body is sleeved outside the central pipe and connected with the central pipe together; the upper end of the elastic claw is of a conical elastic claw structure, and the elastic claw is positioned between the upper body and the lower body and can be axially slid between the upper body and the lower body; the horse tooth-shaped ring is arranged between the elastic claw and the central pipe; and the adjustment ring is arranged between the elastic claw and the central pipe below the horse tooth-shaped ring. The multilateral well completion pipe string reentry leader has the advantages of novel conception and simple structure, and the technical problem in the prior art that when the multilateral well completion pipe string is sent into a multilateral well hole, the completion pipe string cannot be correctly judged whether to pass through a multilateral well window in real time through the change of the suspending weight of the pipe string is solved.

The invention relates to a stepless telescopic mechanism and a stepless telescopic screwdriver. Firstly, a containing cavity is formed in a connecting rod and a connecting handle is arranged in the containing cavity so as to form the telescopic mechanism, the connecting handle is arranged in different depth of the containing cavity, so that the overall length adjustment can be realized; secondly,a self-locking body and a self-locking part are arranged, the self-locking body is arranged between the self-locking part and the connecting handle, an inclined abutting surface is arranged on the self-locking body, so that the single-direction pulling can be realized, and meanwhile, in the direction opposite to the pulling direction, the self-locking body is driven by the friction force of the connecting handle, the self-locking body abuts against the inclined and narrowed abutting surface, the reverse self-locking is realized, so that a single-direction locking action force is provided.

The invention relates to a torsion bar suspension realizing circumferential rotation adjustment and self-locking by a worm and a wheel, wherein, one end of a torque tube is connected with a worm wheel of a worm-and-wheel drive part, while the other end of the torque tube is connected with a shell of a coaxial rotary oscillating damper; a torsion lever is arranged in the torque tube; one end of the torque tube is connected with the worm wheel of the worm-and-wheel drive part, while the other end of the torsion lever is connected with a balance arm; a limit disc is fixed on the balance arm; thelimit disc is connected with a rotating shaft of the coaxial rotary oscillating damper; a plurality of heaves are circumferentially and evenly distributed on the limit disc; a plurality of limitatorscorresponding to the heaves are circumferentially and evenly distributed on the shell of the coaxial rotary oscillating damper; and the outside of the balance arm is connected with an end cover of the balance arm. The invention can realize circumferential rotating adjustment of a torsion bar suspension system to ensure the torsion bar suspension realizes rotation in a certain angle, even in 360 degrees and above, and dead locking at an arbitrary position, thereby meeting the requirement of normal running and vehicle crossing over a barrier.

The invention relates to the technical field of face recognition machines, and discloses a convenient face recognition device, which includes a box, the inner wall of the box is provided with a vertical T-shaped slot, and the inner wall of the T-shaped slot is slidably connected with a T-shaped block. , one end of the T-shaped block located outside the T-shaped slot is fixedly connected with a mounting plate, the top of the mounting plate is provided with a rotating hole arranged in a vertical direction, the bottom of the rotating hole is provided with a mounting hole, and the inside of the rotating hole is provided with a worm. The top is located outside the rotating hole, and is fixedly connected with a knob. The bottom of the worm is connected to the inner bottom of the mounting hole through the rotating shaft. The inner wall of the mounting hole is connected to the rotating rod arranged in the horizontal direction through the rotating shaft. A worm gear is connected, and the worm gear is meshed with the worm, the spur gear is fixedly sleeved on the side wall of the rotating rod, and the top of the mounting plate is provided with a chute communicating with the mounting hole. This convenient face recognition device can provide identity verification in any public place at will, and is convenient for mobile transportation.

The present invention relates to a method for processing threaded steel transverse rib grooves on rolls, comprising the following steps: S1, before starting milling, leave a space of 30° to 60° before the milling cutter on the rotating cutter bar contacts the rolls; S2 1. During the milling process, the rotating tool bar rotates 240°, so that the milling cutter forms a transverse rib groove in the ring groove of the roll; The position of the transverse rib groove corresponds to the milling position of the milling cutter; S4. Steps S2 and S3 are repeated until the machining of the transverse rib groove in the annular groove is completed. The invention has high processing efficiency, is beneficial to reduce the "tailing" phenomenon of broken knives and transverse rib grooves, and ensures the quality of steel bar processing. By reserving space in advance, it is used to eliminate the tailing caused by the pause each time when the roll is milled , reasonable design, low tool consumption, high processing precision, which is beneficial to reduce processing costs, safe and reliable.