76results about How to "Eliminate wobble" patented technology

A hand held dispenser system with associated dispensed material supply assembly as in separate source chemical foam precursor feeding into, for example, streamlined chemical passageways preferably each comprised of, in series, a castellated swivel hose filter, a valve assembly housing, a wing extensions of a manifold, which manifold supports a high efficiency drive system and is supported by a handle that provides for a compact assembly and receives a rugged trigger assembly. The manifold design provides for elongated filter and, temperature controlled cartridge heater insertion. There is further provided in a preferred embodiment a readily releasable electric source feed line plug connection at the butt end of the dispenser. The dispenser is well suited for the dispensing of methane foam as in a product packaging setting.

A transport equipment comprises at least a carrier that is disposed on the window platform or balcony and thus becomes one part of a building in normal condition, or that is pushed out of the window or balcony for personnel and commodity transportation through a cantilever beam of a slow descending mechanism when in need, to descend or ascend along the outer wall of a building. In this manner, personnel or commodity can be transported by the carrier to reach ground directly or in relay-floor connection mode. For example, personnel or precious commodity can be evacuated at the first instant of fire. Even in the case of electricity disconnection due to the happening of a fire, the slow descending mechanism of the transport equipment can be operated by uninterruptible power supply or by hand.

A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top edge of the voice coil bobbin with that ring mating with a flat diaphragm at a right angle directly above the top edge of the bobbin. The outer edge of the diaphragm connects to the inner edge of the surround at the point where a sloping side of the “triangle” is also connected and slopes down to the top edge of the bobbin where the opposite end is connected. The outer portion of the diaphragm provides the third side of the triangle.

A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top edge of the voice coil bobbin with that ring mating with a flat diaphragm at a right angle directly above the top edge of the bobbin. The outer edge of the diaphragm connects to the inner edge of the surround at the point where a sloping side of the “triangle” is also connected and slopes down to the top edge of the bobbin where the opposite end is connected. The outer portion of the diaphragm provides the third side of the triangle.

An exterior door handle assembly for motor vehicles is configured to reduce or eliminate wobble or looseness during operation of the door handle. The handle assembly may include a handle member or strap having vertically extending pins at forward and rearward ends of the handle strap, wherein the pins have non-circular cross-sectional shapes to tightly engage a slot in a finger of a bellcrank to thereby prevent wobble of the handle strap in use. The non-circular shapes may be substantially similar to that of a waxing gibbous moon.

The invention relates to a space tether capturing system keeping stage tether in-plane and out-plane angle stable control method. Firstly, a space tether capturing system keeping stage kinetic model is built; according to a sliding mode variable equation, a space tether capturing system keeping stage kinetic equation is sorted; a space tether capturing system keeping stage Super-Twisting control law is designed; and the magnitude of the space tether capturing system keeping stage tether in-plane and out-plane angle stable control torque is calculated. The method of the invention has the beneficial effects that the designed control law can quickly eliminate swing of in-plane and out-plane angles in an interference condition, and the tether in-plane and out-plane angles can be controlled to be expected values; and in comparison with the traditional sliding mode method, the designed control law can realize continuous control input and eliminate chattering.

The invention provides an H-shaped steel welding pure mechanism wire feeding method and gantry type equipment. A gantry frame, a transmission system, a moving system and a welding system are mainly included. The welding system mainly comprises a welding support, a welding gun mechanism and a wire feeding mechanism. The method and the equipment are characterized in that through the design of the wire feeding mechanism without motor driving, a synchronous wire feeding process in which rotating clamping wires of a wire feeding disc is fed by being pushed forward replaces motor wire feeding, through the design that a dovetail groove of a support horizontal beam is matched with a movable sliding block and the bolt tightening and fixing design, welding gun moving and locating are effectively achieved, through the welding arm design that two supporting columns are increased, welding gun swinging is removed, and welding quality is improved. The structure is simple, energy is saved, and the method and the equipment are suitable for production practice.

The invention discloses a PLC frequency-converting speed-governing control system for eliminating the swing of the gantry crane goods based on a ZVD time-delayed filter, which is developed by the following steps: establishing an inertia pole coordinate system, a non-inertia cartesian coordinate system and a non-inertia sphere coordinate system of a gantry crane; establishing a nonlinear dynamics model and a linear dynamics model of the gantry crane. The control system comprises an operation console, a controller, a PLC, a frequency-converting set, a hoisting mechanism motor, a brake, a hoisting mechanism, a trolley motor, a trolley mechanism, a cart motor and a cart mechanism. The controller consists of a goods swing frequency and damping ratio calculation unit, a system parameter calculation unit and a time-delayed filter calculation unit. The invention provides the PLC frequency-converting speed-governing control system based on the ZVD time-delayed filter, which has simple structure, low cost, convenient operation and effective elimination of goods swing.

An X-ray CT apparatus including an X-ray generator, an X-ray detector, a support part, and a base that rotatably supports the support part. The support part includes an exterior part made of carbon fiber reinforced plastic, and the X-ray generator and the X-ray detector are supported by the exterior part while being opposed to each other. The base rotatably supports the support part such that the X-ray generator and the X-ray detector turn about a turning axis.

A hinge mechanism includes: a bracket 2 having a rotation shaft portion insertion hole 2a for inserting through a marginal rotating shaft portion 3b thereof, and one engaging concavo-convex section 2b; a plate 5 having a mounting shaft portion insertion hole 5a; and a leaf spring 4 having a mounting shaft portion insertion hole 4a and the other engaging concavo-convex section 4c, and located between the bracket 2 and plate 5 and mounted to the rotation shaft 3, wherein the hole 5a is formed larger than the hole 4a such that the spring 4 is caulked and fixed to the end face of the shaft portion by entering of the outer wall side part of a mounting shaft portion 3c formed on the end face of the portion 3b that is collapsed by caulking into a gap 5c formed between the portion 3c and insertion hole 5a.

The invention discloses a general satellite sun wing expanding frame automatically adjusting levelness. The general satellite sun wing expanding frame automatically adjusting levelness is composed of a mechanical system and a control system. The mechanical system mainly comprises two upper guide rails, two driving mechanisms, a main beam, a hinged telescopic mechanism and a rigid connection telescopic mechanism. The mechanical system of the sun wing expanding frame is fixed to opposite brackets arranged on the two sides of an infrastructure, and the two upper guide rails are welded to the brackets. The upper guide rails are connected with the main beam. The main beam is driven by the driving mechanisms to move on the upper guide rails, and then the whole system can move in the appointed area. According to the general satellite sun wing expanding frame automatically adjusting levelness, a contact gap and unnecessary constraint are eliminated, a lifting mechanism ascends and descends freely, the clamping phenomenon in the lifting process is eliminated, swinging of a platform is eliminated, the leveling effect and stability of the system are guaranteed, the position of the expanding frame is changed freely, and the expanding frame ascends and descends freely in the height direction, and the accurate and automatic adjustment of 0.04 mm / m of the levelness of the guide rails is achieved.

The invention relates to a method for achieving automatic navigation of a vehicle based on a self-adaptive filtering algorithm, comprising the steps of: presetting the filter coefficient of the self-adaptive filtering algorithm of automatic navigation; sampling filtering data in the filtering algorithm; removing shaking sampling points with the sampling data variation direction in this time not accordant with the last time sampling data variation direction; regulating the filter coefficient according to the sampling data in this time and the variation speed of the last time sampling data; performing navigation by the vehicle according to the result of the filtering algorithm. By using the method for achieving automatic navigation of the vehicle based on the self-adaptive filtering algorithm, when the value of an angle sensor varies quickly, the filtering result can follows up in time; when the angle sensor tends to be stable, the filtering result can tend to be stable too; when the method is applied to the unmanned driving of a tractor, the swinging and shaking of the angle signals generated by the unmanned driving of the tractor can be effectively eliminated, the sensor signals of the tractor at the current corner can be accurately reflected, and the wider application range is provided.

The invention discloses a bridge crane anti-swing control method based on a neural network PID, and relates to the field of bridge cranes. A BP neural network is combined with a traditional PID controller, the neural network is adopted as an on-line estimator, and an optimal PID control parameter is given in real time. An angle neural network PID controller and a position neural network PID controller are designed, and the swing angle and position of an objected lifted by a crane are controlled. Meanwhile, in order to solve the problem that motors on the two sides are unbalanced in rotation speed due to load disturbance in the operation process of a crane cart, a motor rotation speed synchronous controller is designed and used for torque compensation. Through the bridge crane anti-swing control method, the crane can be precisely positioned, lifted object swing can be eliminated, and in addition, the rail gnawing phenomenon caused by the unequal rotation speeds of the two motors of thecart in the crane transport process can be avoided.

The invention belongs to the field of electronic measurement instruments. A digital phosphor oscilloscope random sampling phase scrambling circuit design method of the invention comprises the following steps: (1) a to-be-measured signal is used as a trigger source, a trigger circuit produces a trigger pulse when the signal level rises to exceed a rising edge trigger level or the signal level falls to be below a falling edge trigger level, the pulse activates a data acquisition circuit, and sampling is performed once under action of a sampling clock to obtain the value of a signal at a specific moment; and (2) the phase difference is a random value as the sampling clock and the signal are independent of each other, the sampling value and the phase difference value are stored at the same time, ranking is performed in order of phase difference, and all possible waveform sampling processes can be traversed when the number of superposition times is large enough, thus reconstructing the complete sampling waveform of a target signal. Accurate phase control on any position within a clock cycle is realized. The method is very suitable for sequential fine-tuning applications and plays a very critical role in setting and keeping timing alignment.

The invention discloses an eight-line symmetrical balancing type large reciprocating compressor which comprises a driving motor, crankshafts and eight lines of air cylinders. The reciprocating compressor is characterized in that four lines of air cylinders are connected with one crankshaft and arranged on one side of the driving motor; the other four lines of air cylinders are connected with the other crankshaft and arranged on the other side of the driving motor; and the two crankshafts have the same structure. Cranks corresponding to the first and second lines of air cylinders are arranged in one plane and are vertical to the planes of cranks corresponding to the third and fourth lines of air cylinders. Cranks corresponding to the fifth and sixth lines of air cylinders are arranged in one plane and form an angle of 45 degrees with the planes of the cranks corresponding to the first and second lines of air cylinders. The planes of cranks corresponding to the seventh and eighth lines of air cylinders are vertical to the planes of the cranks corresponding to the fifth and sixth lines of air cylinders. The air cylinders corresponding to the cranks in the same plane form a moving line, and the moving line is provided with a cross head for connecting a connecting rod with a piston rod, wherein the side force of one connecting rod acting on the cross head always faces downwards, and the side force of the other connecting rod acting on the cross head always faces upwards.

The present disclosure is directed to a susceptor support that includes a hub and a plurality of arms extending radially from the hub, where each arm has a terminal end positioned away from the hub. The susceptor support also includes a plurality of elongated rectangular tips formed at the terminal end of each arm, each tip having a length and a width, wherein the length is greater than the width.

An exterior door handle assembly for motor vehicles is configured to reduce or eliminate wobble or looseness during operation of the door handle. The handle assembly may include a handle member or strap having vertically extending pins at forward and rearward ends of the handle strap, wherein the pins have non-circular cross-sectional shapes to tightly engage a slot in a finger of a bellcrank to thereby prevent wobble of the handle strap in use. The non-circular shapes may be substantially similar to that of a waxing gibbous moon.

An X-ray CT apparatus including an X-ray generator, an X-ray detector, a support part, and a base that rotatably supports the support part. The support part includes an exterior part made of carbon fiber reinforced plastic, and the X-ray generator and the X-ray detector are supported by the exterior part while being opposed to each other. The base rotatably supports the support part such that the X-ray generator and the X-ray detector turn about a turning axis.

The invention discloses a rope driving device for improving the control accuracy. The rope driving device comprises a transmission wheel driven to rotate by a motor, a reel rotating along with the transmission wheel, and a rope wound on the reel; the reel can move relative to the transmission axle in the rotating process, and a spiral clamping groove used for clamping the winding of the rope is formed in the surface of the reel; and the axial movement rate of the reel is the same as that of the rope in the clamping groove, through the synchronous movement of the separation point of the reel and the rope, the swing of the rope relative to the reel is eliminated, and the output of the rope can be accurately controlled accordingly. The rope driving device has the key advantages that the rotating angle of the reel is linearly related to the input and output amount of the rope, the rope driving device is easy to control, compact in structure and easy to maintain, and the control accuracy ofthe rope is greatly improved.

A take up type vacuum vapor deposition device in which an occurrence of a thermally affected area on a film can be suppressed without impairing productivity. The take up type vacuum vapor deposition device (10) has a payout roller (13), a take up roller (15) for taking up a film (12) paid out from the payout roller (13), a cooling roller (14) disposed between the payout roller (13) and the take up roller (15) and cooling the film (12) by being in intimate contact with it, an evaporation source (16) disposed facing the cooling roller (14) and depositing an evaporation material on the film (12), and an electron beam irradiator (21) disposed between the payout roller (13) and the evaporation source (16) and irradiating the traveling film (12) with an electron beam. The electron beam irradiator (21) has a filament (31) for emitting electrons when it is heated by conduction and also has DC generation means for supplying a DC current to the filament (31).

The present disclosure is directed to a susceptor support that includes a hub and a plurality of arms extending radially from the hub, where each arm has a terminal end positioned away from the hub. The susceptor support also includes a plurality of elongated rectangular tips formed at the terminal end of each arm, each tip having a length and a width, wherein the length is greater than the width.

The invention belongs to the technical field of concrete pouring, and discloses a concrete pouring device. The concrete pouring device includes a tower crane body, the tower crane body is provided with a folding pipe for conveying concrete, one end of the folding pipe is connected with a damping conveying device, and a concrete hose is arranged at the end, away from the damping conveying conveyor,of the folding pipe. According to the concrete pouring device disclosed by the invention, a tower crane is used for concrete pouring, in the process of pouring, high floors can be poured without theneed of building pipelines layer by layer manually, disassembling of the pipelines layer by layer is not needed after pouring, operation is easy, use is convenient, the range of high-efficiency concrete pouring is expanded, the work of needing to build a plurality of conveying pipe and materials are reduced, the workload of workers is greatly reduced, the working efficiency is advantageously improved, and the construction time is shortened. According to the damping conveying device, vibration of the conveying pipes during concrete conveying is eliminated, the folding pipe cannot swing freely in the conveying process, and the stability of the tower crane body is not affected.

The invention discloses a device for replacing a winch steel wire rope. The device comprises an operation platform, sliding wheels are arranged at the bottom of the operation platform, a rotating disc is arranged at the top of the operation platform and connected with the operation platform in a rotating mode, a fixing shaft is arranged in the geometric center of the rotating disc, and multiple supporting rolling wheels are arranged between the rotating disc and the operation platform. The device for replacing the winch steel wire rope is simple in structure and easy to operate, free rotation of the rotating disc replaces hoisting, the potential safety hazards of rope disc swinging and falling are eliminated, the stability of a rope disc is improved, in this way, the safety in the process of replacing the winch steel wire rope is improved, and meanwhile labor intensity is lowered.

The invention provides an intelligent operation control system of a bridge crane. The intelligent operation control system primarily comprises a position correcting module, an anti-swing unit module,a data processing module and a PLC. The position correcting module is used for determining coordinates of an object to adjust the lifting angle of the object; the position correcting module comprisesa coordinate measuring unit, a distance induction sensor, an offset compensation sensor, an angle sensor and a coordinate guiding unit; the anti-swing unit module comprises an acceleration sensor, a height sensor, a swing prediction unit, a tracking control unit and a frequency sensor; the data processing module is used for receiving position correcting and anti-swing data, a data processing unitsends processed data to the PLC, and the data processing module comprises a receiving unit, a signal processing unit and a data quantitative analysis unit. By matching the modules, the swing amplitudeof carrying the object to move is reduced, so that an intelligent operation is achieved.

A hitch-type equipment carrier for mounting to a vehicle includes a coupling member, a brace member fixed to the coupling member, and a wedge member that is movable relative to the coupling member. A manually operable actuator is positioned between the brace member and the wedge member. When the coupling member is positioned within the hitch receiver passage, operation of the actuator moves the wedge member in a first direction toward the open end of the hitch receiver passage. The wedge member moves outwardly upon advancement through the open end of the hitch receiver passage. Such transverse movement of the wedge member brings the wedge member into contact with one or more walls of the hitch receiver, which forces the coupling member against one or more of almost walls of the hitch receiver for preventing rattle of the coupling member within the passage of the hitch receiver.

The invention relates to the technical field of medical detection, in particular to a sampling needle driving mechanism. A mechanical mechanism part of the driving mechanism is reset to achieve high accuracy; the driving mechanism comprises a pedestal, at least two guide shafts, a vertical plate and a rocker arm driving slide block, wherein the vertical plate is arranged on one side of the pedestal; the two guide shafts are arranged on the pedestal at interval; the vertical plate and the guide shafts are parallel with each other and are vertical to the pedestal; the rocker arm driving slide block is provided with guide holes corresponding to the guide shafts; and the guide shafts are in interference fit with the guide holes, so the rocker arm driving slide block can slide along the guide shafts under the power action. In the further technical scheme, the guide shafts made of a special material are matched with a shaft sleeve, so that running noise is eliminated, cost is lowered and service cycle is prolonged.

The present invention concerns a chronograph watch fitted with a going train including: a permanent seconds wheel set secured to a permanent seconds display member, a chronograph seconds wheel set cooperating with a coupling in order to be secured to a chronograph seconds display member, and a third wheel set including a first third wheel fixedly mounted in rotation, meshed either with the permanent seconds wheel set, or with the chronograph seconds wheel set. The going train further includes a second third wheel mounted to move freely, meshed on the one hand, with the permanent seconds wheel set, and on the other hand, with the chronograph seconds wheel set.

The invention provides a livestock wing hair removing machine, and relates to the technical field of livestock wing hair removing tools. The livestock wing hair removing machine comprises a hanging device, a leading-in device, a positioning device, a wing opening device and a polishing device, wherein the wing opening device comprises wing opening blades which are arranged in a turnover manner andare used for opening duck wings. The livestock wing hair removing machine solves the problems that in the prior art, in the leading-in process of duck bodies, large shaking occurs, the duck wings cannot be accurately removed, the occupied space of a driving component is large, and assembly line processing cannot be realized.