38results about How to "Reduce mechanical impact" patented technology

A method for operating a sealed for life compact secondary substation including a transformer, a high voltage side and a ring main unit arranged at the high voltage side and connected to a primary side of a the transformer, a secondary side of the transformer is connected a low voltage switch gear. An enclosure includes watertight material capable of withstanding corrosion at least for a life time of the compact secondary substation. The compact secondary substation is cooled with a cooling system that includes a heat exchanger. The compact secondary substation is protected with an extended arc eliminator. The compact secondary sub-station is connected to a remote control for surveillance and operation, which remote control is communicating with a fault protection equipment.

The invention discloses a hand-held electromagnetic riveting gun buffering and guiding mechanism which is used for solving the technical problem that the existing hand-held electromagnetic riveting gun is strong in mechanical impaction. The technical scheme adopted by the invention is as follows: the mechanism comprises a buffering mechanism and two guide mechanisms, wherein the buffering mechanism is arranged above a mass block (1); the two guide mechanisms are arrange below the mass blocks (1); the buffering mechanism and the guide mechanisms are distributed in an isosceles triangle mode; in the buffering mechanism, a damping spring (4) and a buffer (3) are combined; and in each guide mechanism, two guide shafts (14) are matched with a linear bearing (13) and guide shaft springs (10), so as to realize the relative slip of the guide shafts (14) and the mass blocks (1). Since the buffering mechanism and the two guide mechanisms are adopted, and the buffer mechanism adopts a scheme that the damping spring is combined with the buffer, the mechanical impaction of the hand-held electromagnetic riveting gun is reduced; and each guide mechanism adopts a scheme that the two guide shafts are matched with the linear bearing and the guide shaft springs, so that the guiding of the mass blocks is realized.

The invention discloses a high-voltage circuit breaker and a connector used for connecting a transmission pulling rod and an internal crankarm; one end of the connector is used for being articulated with a crankarm and the other end thereof is used for connecting with the transmission pulling rod; the connector is designed as a concave structure at least at one side facing to the rotating shaft ofthe crankarm. The connector adopts an arc-shaped structure which can shorten the length of the internal crankarm, thus reducing the operation moment during the operation process of the circuit breaker, reducing the mechanical impact of all linked mechanism parts and the arc-extinguishing chambers of the circuit breaker during the operation process of the circuit breaker and reducing noise and mechanical vibration during the operation process; furthermore, the connector and the circuit breaker relieve the mechanical fatigue and abrasion deformation of the mechanical parts, are beneficial for the working stability of the circuit breaker and improve the working reliability and service life of the circuit breaker.

The invention discloses a continuous constant-speed operation type electrode foil rolling device, comprising a foil rolling motor, a vertically-arranged rack, a transmission assembly arranged by being matched with the rack and driven by a foil rolling motor of an electrode foil, and a control mechanism which is arranged between the foil rolling motor and the transmission assembly in a matched manner, and is used for controlling a foil rolling speed of the foil rolling motor by detecting a position of the transmission assembly. With the adoption of the continuous constant-speed operation type electrode foil rolling device provided by the invention, the defects in the prior art of large energy consumption, large mechanical impact, high fault rate, poor deviation rectification effect can be overcome; and the advantages of small energy consumption, small mechanical impact, low fault rate and good deviation rectification effect can be realized.

The invention relates to an auxiliary packing machine for cigarette packet transparent paper and a cigarette packet conveying system thereof. An outlet of a host packing machine is connected with a differential transverse conveying belt moving toward the same direction as cigarette packets, and the rear part of the host packing machine is connected with a cigarette packet down-slide groove plate which is connected with a transverse conveying belt, wherein the rear part of the transverse conveying belt is connected with a turning corner, and the rear part of the turning corner is connected witha barrel-shaped cigarette packet down-slide channel. The auxiliary packing machine is provided with an on-board transverse conveying belt which is connected with an outlet of the down-slide channel and a lifting mechanism, wherein a cigarette pulling mechanism is arranged above the lifting mechanism; a pulling block is jointed with the rear side of the lifted cigarette packet; a joint cycle of the pulling block and the lifted cigarette packet is synchronous with a reciprocating cycle of the cigarette packet lifting mechanism. A conveying mode of vertically lying and longitudinally arraying ofthe cigarette packets is changed into a conveying mode of transversely lying so as to avoid the hitting of both ends of the cigarette packet during conveying. After entering the auxiliary machine, the cigarette packets are conveyed by the on-board transverse conveying belt, thus, the cigarette packets transversely enter a cigarette pressing mechanism of the auxiliary machine so as to avoid the hitting of one end of the cigarette packet with a positioning plate. The invention can thoroughly avoid the defects of 'empty ends' and interconnection of the cigarettes.

The invention discloses a high-thrust servo electric cylinder which comprises a bottom plate, a mounting box and a servo electric cylinder body. The top of the bottom plate is fixedly connected with the bottom of the mounting box. The invention relates to the technical field of servo electric cylinders. According to the high-thrust servo electric cylinder provided in the invention, first sliding plates are fixedly connected to the two sides of the bottom of the inner wall of the mounting box. First sliding blocks are connected to the tops of the two first sliding plates in a sliding manner. First sliding grooves matched with the first sliding blocks are formed in the tops of the first sliding plates. The tops of the first sliding blocks are fixedly connected with first rotating blocks. Oneside of the first rotating blocks is rotationally connected with a first movable rod through a rotating shaft. One end of the first movable rod is rotationally connected with a second rotating blockthrough a rotating shaft. The top of a second movable block is fixedly connected with a first supporting plate, so that a very good protection effect can be achieved on the machine body of the servo electric cylinder through the structural arrangement. The degree of mechanical damage to the servo electric cylinder is reduced, and the service life of the servo electric cylinder is prolonged.

The invention discloses an engine start control method. The engine start control method comprises the steps that zero clearing is conducted on control commands of a motor and a clutch, and the motor and the clutch are in an uncontrolled mode; a clutch combination command is sent, and a position state of the clutch is monitored; when the position state of the clutch is combination, a control mode of the motor is set as torque control; a torque value changing curve of the torque control is a given curve which comprises a period of eliminating gaps and a period of rapidly increasing torsion. According to the engine start control method, the cooperation of the motor and a single clutch is used to drive an engine, due to the fact that the torsion of the torque value changing curve of the motor increases slowly in the period of eliminating the gaps, mechanical impact force generated by driving the torque among the driving parts in a dynamical system is reduced, and the service life of the parts can be prolonged. In addition, by means of the engine start control method, due to the fact that the engine can be driven to the default rotating speed as soon as possible in the period of rapidly increasing the torsion, the start efficiency of the engine is improved.