36results about How to "Improve force balance" patented technology

Disclosed is a snap fastener, comprising a face fastener (1) and a locating fastener (2) which are snapped with each other, wherein the face fastener (1) comprises a face shell (11) provided with an installation chamber (111), and a locating pin (12) made of plastic and integrally formed; and the locating pin (12) comprises a base (121), a rod body (122) and anti-rotation protrusions (125). In the implementation of the snap fastener of the present invention, the face fastener (1) can be separated into the face shell (11) and the locating pin (12), and the locating pin (12) is manufactured into a standard part for batch production and storage, thereby adapting face shells (11) with continuously updated designs, shortening delivery time, and reducing costs.

The invention discloses a multi-stage compressed gas engine, comprising an impeller and at least one impeller chamber in which the impeller is installed, the impeller includes a first impeller and a second impeller, and blades on the peripheral surfaces of the first impeller and the second impeller The side plates on both sides between the teeth and the blade teeth form a plurality of working chambers, the inner surface of the impeller chamber where the impeller is installed and the working chambers form a plurality of air chambers that can be relatively sealed and injected into the gas, and the first chamber is installed. A first compressed gas injection hole and a first compressed gas discharge hole are correspondingly opened in the impeller chamber of an impeller, and a second compressed gas injection hole and a second compressed gas discharge hole are correspondingly opened in the impeller chamber where the second impeller is installed. and the output of the first compressed gas injection hole is connected to the second compressed gas injection hole. The invention also discloses a motor vehicle equipped with the above-mentioned compressed gas engine. By adopting the present invention, the energy use efficiency of the compressed air can be fully improved.

A variable section nozzle includes an ejection casing and a plurality of internal flaps arranged in a ring downstream from the ejection casing. Each internal flap is connected to the ejection casing by a movable lever pivotally mounted to the downstream end of the ejection casing. Each lever is movable between a first position in which the internal flaps are in a high position and a second position in which the internal flaps are in a folded-down position. The nozzle includes a plurality of rigid movement transmission parts distributed circumferentially around the ejection casing. Each rigid movement transmission part is connected to two adjacent levers by connecting rods, and to a control actuator. Each rigid movement transmission part can move in a direction corresponding to the axial direction of the nozzle under the action of the control actuator to move the adjacent levers between the first and second positions.

A flow control system for a fuel injector for an internal combustion engine is provided and includes an inlet port, an outlet, a return port, a 2-way control valve including a control valve member, a shuttle valve and a main valve. The control valve includes a first seat, a first resilient arrangement configured to force the control valve member towards the seat so as to close the control valve, and a first abutment that limits the lift of the control valve member away from the first seat. The first seat of the control valve is slidably arranged in the shuttle control chamber. An end stop for the first seat is provided such that the pressure in a shuttle control chamber tends to move the first seat towards the end stop. The first seat, upon its mechanical contact with a valve member is able to transmit at least a part of the force of the resilient means onto a shuttle valve body in the opening direction of the shuttle valve.

The invention relates to the technical field of segmental beam hangers, and specifically discloses a segmental beam hanger, which includes a horizontal frame, a first bracket, and a second bracket; The upper end is provided with a pull ring, and the lower end of the second fixed block is provided with a first hook; the upper end of the first bracket and the upper end of the second bracket are welded and fixed with the first fixed block; the first bracket and the second bracket are equipped with There are tensile components; the structural design of the segmental beam spreader is reasonable. When the segmental beam needs to be hoisted, the rope is wound on the segmental beam, and then the tensile component on the first bracket and the second bracket The stretching assembly on the top and the first hook at the lower end of the second fixed block stretch the rope at the same time, and finally the horizontal frame is stretched by the hoisting machine, and then the segmental beam is hoisted; since there are multiple stretching points for the rope , thereby improving the force balance of the segmental beam during the hoisting process and the stability when it is raised.

The invention relates to a jack quick adjusting method in bridge four-point jacking construction. The method comprises the following steps: step 1, determining bridge jacking position precision requirements and jacking force balancing requirements; step 2, adjusting the jacking distances of four jacks so as to enable a bridge to reach a target height; step 3, judging whether the jacking forces of the jacks meet force balancing requirements or not; step 4, adjusting the jacking forces of the jacks so as to meet the force balancing requirements; step 5, judging whether the bridge meets position precision requirements or not after adjustment. The jack quick adjusting method provided by the invention ensures that repeated adjustments by constructors during bridge jacking construction can be avoided, and the construction efficiency is improved; a jacking construction way taking bridge position precision as a single indicator is improved, with the consideration to bridge jacking position precision and balance to the jacking force of the four jacks, the stress condition of the bridge is improved, risks of damages to a bridge support, caused by unbalanced stress, can be reduced, and the service life of the bridge is prolonged.

The present invention relates to the field of ore crushing equipment, and specifically discloses a pair of crusher rollers and an industrial stone crusher. A plurality of ring-shaped rolling parts are set on the outer peripheral side of the rotating roller, and the multiple rolling parts are sequentially connected with each other. Form a rolling surface. In the long-term mine work, when there are pits, deformations and other defects on the surface of the rolling parts, the user can disassemble and replace the corresponding single rolling parts separately, which improves the material utilization rate and avoids the entire replacement. The problem of high cost caused by the roll body. Through multiple split rolling parts, the user can replace the corresponding defective rolling parts separately when replacing the rolling parts, avoiding the difficulty of disassembly and installation caused by the overall disassembly of the roller body, which is convenient for users Maintenance and repair of the roller body, especially in the harsh working environment of mining machinery, the crusher roller has the characteristics of simple structure and easy replacement, which makes it easy for users to replace and maintain the rolled parts during the work process, and improve work efficiency .

The invention relates to chemical machinery, in particular to solid waste treatment equipment and an application. The solid waste treatment equipment comprises a long barrel-shaped shell which is horizontally arranged, wherein an inlet is formed in one end of the long barrel-shaped shell, and an outlet is formed in the other end of the long barrel-shaped shell; a spiral rotating shaft is arranged along the axial direction of the long barrel-shaped shell, more than one longitudinal stirring rods which are perpendicular to the spiral rotating shaft are arranged on one side, which is near the inlet, of the spiral rotating shaft, and more than one transverse stirring rods which are parallel to the spiral rotating shaft are arranged on one side, which is near the outlet, of the spiral rotating shaft; and an upper shell which can be opened is arranged on the upper part of the long barrel-shaped shell, and more than one through holes are formed in the upper shell. The solid waste treatment equipment is put in a flat-top tunnel brick kiln, high temperature in the flat-top tunnel brick kiln is utilized to treat solid waste in the solid waste treatment equipment, the spiral rotating shaft is rotated, the solid waste is stirred by the longitudinal stirring rods, so as to evaporate moisture, and the solid waste is stirred by the transverse stirring rods, so as to loosen the solid waste. According to the solid waste treatment equipment, the treatment of the solid waste can be promoted, and gas can be effectively exported.

A rotating electric machine has a drive control part and a motor having a stator and a rotor. The drive control part has an external disturbance voltage instruction generation part, a switching signal generation part, first and second drive circuits, a current acquisition part detecting an external disturbance current flowing in three phase winding in each of a first coil and a second coil of the stator, and a phase angle estimation part detecting a phase angle of the rotor of the motor based on the detected external disturbance current. The drive control part adjusts turn-on / turn-off timings of switching signals so as to reduce a timing difference between corresponding line external disturbance voltages in the three phase windings more than the time difference without performing the timing adjustment while maintaining a duty ratio of these line external disturbance voltages to that when the timing adjustment is not performed.