34results about How to "Short driving stroke" patented technology

The invention relates to logistics shaping and transporting equipment, in particular to a bag pressing shaper. The bag pressing shaper comprises a frame, a motor, two groups of shaping rollers and shaping roller height adjusting devices. The frame comprises an upper connecting frame, a lower connecting frame and support legs, the motor and the shaping rollers are arranged on the lower connecting frame, driving chain wheels and driven chain wheels are arranged on the shaping rollers and are connected through chains, and the driving chain wheels are connected with the motor through chains. The motor is arranged on the lower connecting frame, the mounting position of the motor is lowered, and driving distance of the chains is reduced. The motor is arranged in the middle of the lower connecting frame, the shaping rollers are symmetrically arranged on the lower connecting frame and connected with the motor. The driving chain wheels are arranged in the middle of the shaping rollers, and the driven chain wheels are arranged on the lower portions of the shaping rollers. The chains of the motor are uniformly stressed, and transmission shaking is effectively reduced.

The invention relates to the technical field of feeding transmission systems and discloses a DD motor nut rotary feeding device which solves the technical problem that due to shaking of a current fixing screw rod, transmission precision is low. The DD motor nut rotary feeding device comprises a track structure, a feeding table structure and a fixing screw rod. The feeding table structure is installed on the track structure in a sliding manner. The two ends of the fixing screw rod are fixed to the two ends of the track structure correspondingly. The fixing screw rod does not rotate. The fixingscrew rod is provided with a drive structure used for driving the feeding table structure to move in a sleeved manner. The drive structure comprises a drive part for providing torque, and a nut-like part rotating forward or reversely under driving of the drive part. The nut-like part is in thread fitting with the fixing screw rod. The drive part and the feeding table structure are mutually fixed.According to the technical scheme, the fixing screw rod is arranged not to rotate, the drive part drives the nut-like part to rotate on the fixing screw rod, the drive part and the feeding table structure are driven to move on the track structure synchronously, the problem of long shaking is avoided, and thus the purpose of improving the transmission precision is achieved.

The invention discloses a lock cylinder driving device, which comprises a micro-motor, a pendant, a bracket, and a drive output shaft. The swing of the ornament drives the bracket and drives the output shaft to move. The present invention has simple structure, convenient backup, and it is easy to form multiple sets of independent backup components without increasing the volume; the failure rate of locks using this mechanism is greatly reduced, and the reliability is greatly improved, so that the lock core of the present invention can be directly integrated into car doors and households. Anti-theft doors, safes, etc., are directly compatible with various electronic control systems, and the application is simple and has a wide range of applications.

The invention discloses an automatic transfer switch, comprising: a first switch module and a second switch module, respectively including first and second breaking units, first and second drivers, and first and second switching mechanisms, the first or second The second driver urges the first or second breaking unit to connect and disconnect the load with the first power supply or with the second power supply via the first or second switch mechanism; wherein, the first breaking unit and the second power supply The two breaking units are stacked along the thickness direction of the automatic transfer switch, and also include a coupling mechanism, which is arranged on the side of the stacked first breaking unit and the second breaking unit, for connecting the first switching mechanism and the second switching mechanism to each other connection, so that before one of the first or second breaking unit connects the load to the corresponding power source, the other of the first or second breaking unit disconnects the load from another power source. The invention inherits the original performance advantages of the parts of the switch module, and also has the advantages of small size, compact structure, high reliability, short development cycle and the like.

The invention discloses an automobile elbow core-pulling mechanism, which includes a product and a lower template, the product is located on the lower template, an arc-shaped groove is arranged inside the product, and an annular protrusion is arranged at the front end of the product. A circular groove is arranged inside the annular protrusion, the diameter of the circular groove is greater than the diameter of the arc groove and the circular groove communicates with the arc groove, and the circular groove for forming is provided in the described circular groove. The first core insert on the inner wall, the arc groove is provided with a second insert core for forming the inner wall of the arc groove, it also includes the first linear core pull for the circular groove core pull mechanism and the second arc core-pulling mechanism for core-pulling the arc groove, the first core insert and the second insert core are connected together, and the second arc core-pulling mechanism is located under On the formwork, the invention provides an automobile bent pipe core-pulling mechanism that is not easy to damage the product and has high reliability.

The invention provides an automatic presser foot lifting mechanism for a sewing machine. The automatic presser foot lifting mechanism comprises a drive source, a first lever, a first transmission shaft, a pull rod, a second lever, a second transmission shaft, a presser foot arm and a presser foot. The drive source comprises a telescoping shaft. One end of the first lever is vertically hinged to the first transmission shaft. A transmission boss is disposed between the first lever and the first transmission shaft. The other end of the first lever is movably connected with the upper end of the telescoping shaft. The second lever is vertically fixed with the second transmission shaft. The first transmission shaft and the second transmission shaft are horizontally disposed and parallel with each other. Two ends of the presser foot arm are respectively vertically hinged to the presser foot and the second transmission shaft. The swing direction, relative to the presser foot arm, of the presser foot is vertical to the swing direction, relative to the second transmission shaft, of the presser foot arm. The first transmission shaft is provided with a lever arm which is vertical to the axial direction of the first transmission shaft. The lever arm is connected with the second lever through the pull rod. The lever arm and the second lever are located on the same side of the pull rod. The automatic presser foot lifting mechanism has the advantages that force conversion between the first lever and the second lever is achieved on the same direction, the drive source is short in travel and compact and stable in structure, and low production cost is achieved.

The invention discloses an emergency release device for a low-temperature fluid loading and unloading arm. The upper valve core of the upper valve body of the self-sealing valve and the lower valve core of the lower valve body of the self-sealing valve are arranged on top of each other. The clamping force of the valve body and the lower valve body of the self-sealing valve disappears, and the emergency disengagement device starts to disengage under the force of the lower valve body of the self-sealing valve. During the disengagement process, the valve core gradually closes the valve port under the action of the return spring and the fluid medium , can effectively guarantee the sealing performance after separation, and its structure is compact and light in weight; the structure of the upper valve body of the self-sealing valve and the lower valve body of the self-sealing valve is fixed by a clamp assembly, which can ensure a small driving force and a short driving stroke; The integration of three inclined planes can ensure the correct separation logic and reliable action; by reducing the overall weight of the emergency release device and setting process threaded holes in the valve body, the workload of self-recovery after the emergency release device is disengaged is reduced.

The present invention provides a sliding table structure, which at least includes a base, a motor and a sliding seat, wherein, the sliding table uses a base and a motor to achieve the sliding displacement of the sliding seat, so as to achieve the application of automatic operation, and the base The seat presets a housing space for the installation of the motor. The depth of the housing space is greater than the axial length of the motor, and can be used as the retraction stroke of the screw, so that the structure of the slide table can not only save the assembly space of the coupling, but also has It helps to reduce the volume of the structure, and at the same time shortens the driving stroke of the slide table, greatly improves the stability of the structure, can be applied to more sophisticated operating equipment, and increases the practicability of the structure.

An in-situ environment double-inclined sample rod of a transmission electron microscope provided by the invention mainly comprises a holding handle, a sample rod body, a sample rod head and a sample bottle configured to holding a sample.

The invention relates to a self-adjusted wire crimper. The self-adjusted wire crimper comprises a crimper head and a driving mechanism. The crimper head comprises a plurality of pressing teeth, a gear ring, a rotating plate and supporting plates. The pressing teeth are evenly arranged in the gear ring. The rotating plate is arranged two sides of the pressing teeth and two sides of the gear ring. The pressing teeth are in linkage matching with the rotating plate and the gear ring at the same time. A leaf spring is integrally formed on the rotating plate. The two supporting plates are correspondingly connected to the driving mechanism. The rotating plate is connected to the inner side of each supporting plate to form rotating matching. Both the leaf spring and the gear ring are in linkage with the driving mechanism. Because the rotating plate and the leaf spring are integrally formed, when different diameters of terminals are connected in a pressed mode, elastic deformation of the leaf spring is generated so that the pressing connection motion can be completed, and the self-adaption purpose is achieved; furthermore, because the rotating plate and the gear ring are arranged in the supporting plates and are in linkage with the driving mechanism, the rotating radian of a single component is reduced through the relative motion of the rotating plate and the gear ring, and the driving travel of the driving mechanism is reduced.

The invention discloses an adaptive bending claw and a capture device. The self-adaptive bending gripper includes a first assembly and a second assembly, the first assembly includes two first elements connected by a first rotation pair; the second assembly includes two second elements connected by a second rotation pair element; the second assembly is located downstream of the extension of the first rotating pair, and the first element and the second element are correspondingly connected in rotation; the first assembly has The first end portion of the second assembly has a second end portion away from the first assembly on the first rotating pair; the distance between the first end portion and the second end portion varies with the two first end portions The surface angle θ of a component 1 increases and decreases; when the surface angle θ 1 When not 0, the surface angle θ 1 greater than or less than the angle θ between the surfaces of the two second elements 2 . The self-adaptive curved gripper of the technical solution of the present invention can self-adaptively capture objects with low cost and reduced driving stroke.