33results about How to "No mechanical shock" patented technology

A two-stage bearing using electromagnetically driven speed regulation between two stages is composed of an electromagnetically driven speed regulating mechanism and a two-stage bearing mechanism. It can increase the extreme rotation speed of whole bearing to maximum and decrease the relative rotation speed between two stages to minimum if it is used as a single-stage bearing for longer service life.

The invention discloses an electromagnetic docking structure of a traction robot, which is applied between two devices of a traction robot and a material vehicle, and is used to establish and disconnect the traction connection relationship between the two, including a first docking unit and a second docking unit One of the two is installed on the traction robot, and the other is installed on the material vehicle; the first docking unit includes two electromagnets and a controller, and the controller can control the communication between the two electromagnets. 1. Power off; the second docking unit includes a bar-shaped unit that can be attracted by a magnet; the distance between the two electromagnets is smaller than the length of the bar-shaped unit. In the electromagnetic docking structure and method of the traction robot of the present invention, the first docking unit and the second docking unit are respectively arranged on the traction robot and the material vehicle, and when docking is required, the electromagnet is energized to make it attract with the strip unit, and the docking accuracy is improved. The requirements are low, the success rate is greatly improved, and there is no large mechanical impact during docking, and the docking process is soft and smooth.

The invention discloses a fish mouth type distributing and sequencing mechanism, which comprises an operation platform, wherein a material charging conveying belt, a frequency-division conveying mechanism and a sequencing conveying belt are sequentially arranged on the operation platform from left to right; a guide arrangement plate is arranged above the material charging conveying belt; one end of the guide arrangement plate is arranged at the material charging side of the frequency-division conveying mechanism; the frequency-division conveying mechanism comprises a material passing bottom plate; two conveying belts are arranged at both sides of the material passing bottom plate and synchronously move; the surface of each conveying belt is vertical to the operation platform; the material discharging end of the material passing bottom plate is arranged on the sequencing conveying belt; a rotary passage cover is arranged on the sequencing conveying belt at one side of the material discharging end of the material passing bottom plate, and a plurality of sequencing passages are arranged at one side of the rotary passage cover. The fish mouth type distributing and sequencing mechanism has the advantages that a material can be continuously distributed and sequenced without impact in a transmitting process, the poor quality of the material is avoided, and the production speed is increased.

The present invention relates to the technical field of mechanical self-locking structures, in particular to a planetary backstop, which includes a cylinder body in which a shaft sleeve I, a locking piece and a shaft sleeve II are sequentially set, one end of the locking piece and the shaft sleeve II The sleeve is fixed, one end of the locking piece is set on the end of the shaft sleeve I, and the circumference of the shaft sleeve I close to the shaft sleeve II is provided with teeth I; The mounting holes for the connection of the shaft sleeve I and the shaft sleeve II, the frame body is evenly distributed around the center of the circle to open a plurality of grooves, the grooves are connected to the mounting holes, the grooves are provided with wedges, and the side of the wedges away from the shaft sleeve I is provided with Elastic part, the center line of elastic part is perpendicular to the center line of axle sleeve 1, and the both sides of elastic part are respectively provided with ball. The device guarantees the precision requirement of synchronous transmission, realizes the reliability of mechanical self-locking, and at the same time ensures that no mechanical impact occurs when the drive shaft transmission stops, and is worthy of popularization.

The invention discloses a platform door direction self-adaption control method and platform door control equipment. An initial speed direction coefficient is set; an operation speed of a motor is associated with the initial speed direction coefficient to automatically judge consistency of a door opening / closing instruction and an actual door opening / closing motion of a movable door; if so, the present initial speed direction coefficient is matched with the actual door opening / closing instruction, and the initial speed direction coefficient is recorded as a final door opening / closing direction coefficient; and if not, the present initial speed direction coefficient is not matched with the actual door opening / closing instruction, the coefficient is reversed, and the reversed speed direction coefficient serves as the final door opening / closing direction coefficient to guarantee consistency of the door opening / closing instruction and the actual door opening / closing motion of the movable door. The method can automatically calibrate the operation direction of the motor during door opening / closing according to the moving direction of a door body of the movable door during opening to guarantee consistency of the actual operation direction of the movable door and the preset motor operation direction without initially adjusting the operation direction of a platform door manually.

A wire-feeding mechanism for a wire-cutting machine tool, relating to an auxiliary device for a wire-cutting machine tool, including a motor, a wire storage barrel, a crank-rocker mechanism, and a rack-and-pinion transmission mechanism. The output shaft of the motor is connected to the crank end of the crank-rocker mechanism , the rocker end of the crank rocker mechanism is connected with the transmission shaft of the wire storage drum through the rack and pinion transmission mechanism. The crank-rocker mechanism includes a crank, a connecting rod, and a balance wheel. One end of the crank is fixed on the output shaft of the motor through a crank fixing key, the other end of the crank is connected to one end of the connecting rod through a hinge, and the other end of the connecting rod is connected by a fastener. It is connected with the balance wheel, and the balance wheel is installed on the balance wheel shaft; the balance wheel is also connected with the transmission shaft of the silk storage drum through a rack and pinion transmission mechanism. The present invention realizes the forward and reverse rotation of the wire storage drum by controlling the crank rocker mechanism by the motor, avoids the frequent forward and reverse rotation of the motor in the prior art, has the advantages of low energy consumption, long service life, low maintenance cost, simple structure and convenient manufacture. Easy to promote and use.

An internal combustion engine implements an optimized scheme and a function scheme according to the invention by an intelligent configuration for intelligent control. The transmission period and the magnitude of five-stage time of the powering period are controlled by the intelligent configuration, control modes such as the control and the pre-control of constant fuel supply, the pre-control of constant power and constant rotation speed powering can be carried out by controlling the periodic unit. The characteristic of the invention is that: the intelligent engine is numerically controlled inthe powering process and the transmission process. There is no starting state, no idling state and no energy consumption, braking energy is stored for use, and the pressure is sufficiently used in the latter powering period. The engine is automatically adapted to various energy sources, the powering period is separately controlled in independence of the last period and power is sufficient in low rotation speed period and energy consumption is low. The engine is driven by programs to operate without vibration according to data gotten in experiments.

The invention provides a laser perforation device and a method thereof and belongs to the technical field of oil and gas underground mining. The laser perforation device and the method thereof aim to solve the problems that in the prior art, perforated holes are distributed fixedly and cannot be adjusted flexibly, only round holes can be formed, mechanical shock is large in the working process, damage to pipe strings and well cementation is severe, and the reuse rate of perforating gun bodies is low. A perforator comprises a miniature high power laser device located at the top end in the perforator. A reflector is fixed to the upper end of a movement adjustment mechanism, the movement adjustment mechanism drives the reflector to do circumferential rotation movement and vertical direction movement, data are collected through a displacement sensor and an encoder, and lasers emitted by the miniature high power laser device are focused through a parallel focusing path, emitted through an emitting hole in the lower end of the perforator and then reflected through the reflector so as to conduct perforation operation. A power source supplies electricity to underground equipment, a ground control system achieves integral control, and the ground control system is connected with the displacement sensor and the encoder through data transmission lines.

An embodiment of the invention disclose a power dividing multistage stepless variable-speed transmission device and a stage changing method thereof and relates to a multistage power dividing variable-speed transmission device using a friction type and hydraulic stepless transmission to regulate speed. The device has multiple different zero-distribution speed ratios which include a dividing speed ratio. The speed regulating range of the device is divided into multiple or at least two speed ratio stages through the dividing speed ratio. Due to the fact that stage changing is performed at the dividing speed ratio, continuous regulating and changing of operating speed ratios during stage changing can be achieved, completely smooth and stepless speed regulation in a wide and continuous speed ratio range can be achieved, and high-efficiency transmission is achieved.

The invention discloses a solid fertilizer quantificationally fertilizing machine for a seedbed, which is hung in front of a tractor and comprises a power transmission unit, a hopper, a support frame and an L-shaped clutch pole. The power transmission unit is used for transmitting power generated by friction between a friction wheel and a front wheel of the tractor to a fertilizing roller to rotate the fertilizing roller to fertilize; the hopper is used for accommodating fertilizers; the support frame is used for supporting the fertilizing machine and fixing the hopper on the tractor, is fixedly connected with the hopper and can be arranged on a front beam of the tractor; and the L-shaped clutch pole is used for engaging and disengaging the power of the fertilizing machine, making the friction wheel be tightly pressed against the front wheel of the tractor through the tension of a tension spring in an engaging state and making the friction wheel disengaged from the front wheel of the tractor by overcoming the tension of the tension spring with the tension of a steel wire rope in a disengaging state. The fertilizing machine has the advantages of simple manufacturing, low cost, simple and convenient operation, and capability of improving the production efficiency.