39results about How to "Achieve balance adjustment" patented technology

The invention discloses a traction return current balancing device and method for a railway electrified section. The traction return current balancing device comprises an unbalance testing module and an impedance adjusting module. The unbalance testing module is connected to two ends of a choke transformer traction ring, and the impedance adjusting module is connected between a steel rail and the choke transformer traction ring. The unbalance testing module collects the traction return current in the steel rail, analyzes the sampled data, and displays the unbalanced degree of the traction return current and impedance adjustment advises. The impedance adjusting module adjusts the impedance according to the impedance adjustment advises to minimize the unbalanced degree. By the aid of the device, balance adjustment of the steel rail traction return current in the railway electrified section can be implemented, on the premise that the smoothness of the steel rail traction return current is free of being influenced, the unbalanced degree of the steel rail traction return current is reduced, and operating stability of a track circuit and vehicular device.

The invention discloses an earphone left-right volume adjusting method, and the method comprises the steps: setting a first sensor on an in-ear part of a main earphone, and setting a second sensor onan in-ear part of a slave earphone; the method comprises the following steps that: a main earphone acquires a first volume heard by a user according to a first vibration signal detected by a first sensor; the main earphone acquires a second volume of the slave earphone, wherein the second volume is obtained by a second vibration signal detected by a second sensor; and the main earphone adjusts atleast one of the earphone volume of the home terminal and the earphone volume of the slave earphone according to the first volume and the second volume, so that the left and right ear volumes of the user are balanced. The invention also discloses an earphone and a storage medium. The volume of the left and right ears of the user is adjusted according to the volume actually heard by the user, if the fitting degree of the main earphone and the left ear canal is different from the fitting degree of the auxiliary earphone and the right ear canal, hearing imbalance of the left and right ears of theuser is normal, balance adjustment can be performed automatically, the user does not need to wear the earphone again, and wearing convenience is brought to the user.

The invention relates to an adjustment method for operation balance of a rod-pumped well and belongs to the technical field of oil production of oil fields. The adjustment method aims at achieving convenient and practical measurement of balance adjustment of the rod-pumped well on site. The adjustment method is characterized in that an active power average value and an upstroke and downstroke net torque superposition value P<up and down> are obtained; an annulus working fluid level HY is obtained according to P<up and down>; according to an upstroke active power average value <up> and a downstroke active power average value <down>, whether balance blocks need to be moved and adjusted and whether the moving directions of the balance blocks need to be adjusted are judged; if adjustment is needed, the adjustment moving amount of the balance blocks of a pumping unit is determined, and the balance blocks of the pumping unit are adjusted. By the adoption of the power method, the relation is established between the adjustment amount of the balance blocks and the variation of a working fluid level HY actually measured when balance adjustment is needed and a working fluid level HY<before> obtained when balance adjustment is not needed, stored work condition information is perfected according to the model as for the same rod-pumped well, the stored information can be freely called during testing, actually measured data are used for correcting working condition parameters, and the method used for conducting practical measurement of balance adjustment of the rod-pumped well and conducting adjustment on site after measurement is achieved.

The invention relates to a flight capacitor voltage balancing circuit of a three-level step-down DC-DC converter, and belongs to the technical field of electronic circuits. The flight capacitor voltage balancing circuit comprises a sampling hold circuit, a comparison selection circuit, a logic control circuit and a VCF adjusting circuit, wherein the input end of the sampling hold circuit is connected with the VA end of a three-level DC-DC main circuit, the output signal VHOLD of the sampling hold circuit is connected with the input end of the comparison selection circuit, the input end of a logic control signal is connected with the output signals VCMP2 and VCMP3 of the comparison selection circuit and detection signals V phi 2 and V phi 4 of phases phi 2 and phi 4, the input signal of the VCF adjusting circuit is connected with the output signal VCH of the logic control circuit, and the output signal of the VCF adjusting circuit is connected with the VA end of the three-level DC-DC main circuit, so that a closed loop is formed. According to the invention, the circuit does not need to be compensated by a duty ratio signal during flight capacitance balance, so that inductive current ripples and output voltage ripples are reduced, and the energy conversion efficiency of a system is improved.

Provided is a precise automatic adjustment method and device of balance of an instrument machine core. Glue spraying is carried out on a machine core by using a glue spraying valve to achieve balance adjustment of the machine core, the glue spraying valve does not make contact with the machine core, interference and damage to the machine core in the glue spraying process are prevented, the angle of a meter pointer is measured in real time by using an image sensor and is fed back to a computer, the computer calculates glue spraying amount and glue spraying positions, and a main controller is used for controlling glue spraying action. An automatic adjusting device comprises a rack, a machine core action module, an image sensor detecting module, a micro-mass adjusting module, the computer and the main controller, the machine core action module controls a clamp and the machine core to rotate, the image sensor detects the angle of the pointer in the machine core, and the micro-mass adjusting module comprises the glue spraying valve and a movement mechanism. The precise automatic adjustment method and device of the balance of the instrument machine core achieves automatic precise adjustment of the balance of instruments, the balance errors of the instruments can be adjusted to less than 0.05 degree, and the precise automatic adjustment method and device of the balance of the instrument machine core is good in consistency, high in production efficiency and stable in product quality.

The invention discloses an electric balance adjusting device of a bending machine and belongs to the field of bending machines. The electric balance adjusting device comprises two wall plates and a balance shaft arranged between the two wall plates, and a balance adjusting mechanism; the balance adjusting mechanism comprises an adjusting seat, a bearing seat, a screw rod, a supporting plate, an eccentric sleeve and a speed reducing motor; the adjusting seat is mounted on an outer side face of one wall plate; the bearing seat is connected with the adjusting seat through a pin shaft; one end of the screw rod is arranged in the bearing seat and is driven through the speed reducing motor; a screw rod nut sleeves the screw rod; one end of the supporting plate is connected with the screw rod nut and the other end of the supporting plate is connected with the eccentric sleeve; the eccentric sleeve is mounted on the wall plates; one end of the balance shaft is mounted in the eccentric sleeve through a bearing. By adopting an electric driving manner, the height difference of two ends of the balance shaft is adjusted so that the aim of adjusting the parallelism degree of a sliding block is realized; the electric balance adjusting device of the bending machine has the advantages of simplicity and convenience in adjustment, high precision and high efficiency and the bending precision of a sheet material is guaranteed.

The invention discloses an automatic star-finding portable station pedestal and a supporting assembly thereof. The supporting assembly, through an elastic flexible assembly and a horizontal positioning connecting piece, can co-operate rotary movement of a horizontal rotating shaft and the rotary movement of the vertical rotating shaft so as to realize inclination supporting to the pedestal during being used and folding and unfolding of the pedestal during not being used. In the automatic star-finding portable station pedestal of the invention, a supporting bracket is used to support the pedestal. An inclined supporting bar and the special supporting assembly are used in the pedestal. A supporting plate assembly is installed on the supporting assembly. Balance adjustment of the pedestal can be realized during folding and unfolding the supporting assembly on the pedestal.

The invention discloses a humidity balance device which comprises a main water tank, a moisturizing water tank, a water flow control box and a water level control box, wherein the water level control box is positioned above the main water tank; the water flow control box is positioned above the water level control box; the water flow control box, the water level control box and the main water tank are connected in series in sequence through pipelines to form water path circulation; the pipeline between the water flow control box and the water level control box is also communicated with a U-shaped pipeline; the other end of the U-shaped pipeline is connected with the moisturizing water tank; the height of the moisturizing water tank is equal to the water level control box. Due to the mode, the moisture balance device which is simple in structure and convenient to use is provided, so that moisture balance adjustment can be quickly realized; furthermore, the humidity adjustment value can be precisely controlled, and the aim of fine adjustment is fulfilled.

The invention discloses a method for adjusting the left and right volume of earphones. A first sensor is arranged on the ear-in portion of the main earphone, and a second sensor is arranged on the ear-in portion of the slave earphone; A vibration signal obtains the first volume heard by the user; the main earphone obtains the second volume of the slave earphone, and the second volume is obtained from the second vibration signal detected by the second sensor; the main earphone adjusts the volume according to the first volume and the second volume. At least one of the earphone volume of the terminal and the earphone volume of the slave earphone, so that the user's left and right ear volumes are balanced. The invention also discloses an earphone and a storage medium. The present invention adjusts the volume of the user's left and right ears according to the volume actually heard by the user. If the degree of fit between the main earphone and the left ear canal is different from that between the slave earphone and the right ear canal, the hearing imbalance between the left and right ears of the normal user can be automatically adjusted. The balance adjustment does not require the user to wear the headset again, which brings convenience to the user.

The invention relates to the field of building construction, and concretely relates to automatic glass bead repairing equipment and a building construction vehicle. The invention aims to solve the problems that in the prior art, it is difficult for an existing construction process to ensure that glass beads are just located at proper inlaying positions, or after the glass beads are embedded into an adhesive layer, along with solidification of the adhesive layer, with repairing cannot be carried out. The equipment comprises a rotating main body, a micro-bead laying module, an adhesive layer laying module, a rotating scraping plate and a melting module, and has the functions of automatic laying, reminding, repairing and the like.

The invention discloses a power grid rush-repair ladder capable of being used on a slope. The power grid rush-repair ladder capable of being used on the slope comprises an electric control box for theladder, wherein a working cavity is formed in the electric control box for the ladder; a forking assembly is arranged in the working cavity; and the forking assembly comprises an annular slide groovewhich is fixedly formed in the inner wall of the right side of the working cavity and annular, and a first through hole formed in the inner wall of the right side of the working cavity and communicating with the outside. According to the power grid rush-repair ladder capable of being used on the slope, a fan-shaped slide block with front-rear symmetry is adopted, and forking for floor support plates at a front side and a rear side is realized through the slide of the fan-shaped slide block in the annular slide groove; and the toothed slide block capable of sliding upwards and downwards is adopted, balance adjustment for the rush-repair ladder is realized through the downward slide of the toothed slide block at a relatively low terrain and the relative levelness of the front floor supportplate and the rear floor support plate, an adjustment time for the power grid rush-repair ladder on the slope can be reduced through automatic adjustment, so that the rush-repair efficiency is increased, and meanwhile, the safety of electric power workers during rush-repair working is guaranteed.

The invention discloses a display stand based on a mobile phone sales booth, which belongs to the field of mobile phone stands. A display stand based on a mobile phone sales booth includes a base, a support rod is vertically connected in the middle of the base, a display platform is arranged above the base, a groove is formed on the top surface of the display platform, and the interior of the display platform is The center of the bottom surface of the hollow setting is provided with a limit hole with a diameter larger than that of the support rod. The support rod passes upward through the limit hole and is in contact with the bottom surface of the groove inside the display platform. The groove is provided with an electromagnetic block for adsorbing the mobile phone. There is a stable reinforcement device inside the platform. The rotating connection between the support rod and the display platform of the present invention allows the display platform to be inclined and adjusted at will. The electromagnetic block in the slot is set to be stably clamped with increasing inclination, enhancing the anti-drop protection of the display phone.

The invention provides a foldable dual-mode electric vehicle. A vehicle body module is divided into three parts of a front wheel part, a vehicle body part and a rear wheel part; the front wheel part is connected with the vehicle body part through a front partition plate and a front folding partition plate on the two sides, and the rear wheel part is connected with the vehicle body part through a rear partition plate and a rear folding partition plate on the two sides; the front folding partition plate is connected with the front wheel part and the vehicle body part through two pairs of front rotating shaft hinges; one end of the front partition plate is fixedly connected with a front wheel bracket of the front wheel part, and the other end of the front partition plate is detachably connected with the vehicle body part; the rear folding partition plate is connected with the rear wheel part and the vehicle body part through two pairs of rear rotating shaft hinges; and one end of the rearpartition plate is fixedly connected with a rear wheel bracket of the rear wheel part, and the other end of the rear partition plate is detachably connected with the vehicle body part. The foldable dual-mode electric vehicle has the beneficial effects that under a single-track electric bicycle mode, single wheel or all wheel driving can be achieved through a front wheel hub motor and a rear wheelhub motor, and the quick passing ability is achieved; under a double-track balance vehicle mode, the function of riding instead of walking is high; and meanwhile, the vehicle body part is provided with a balance adjusting device, the mass center of a vehicle body is adjusted autonomously, stable driving is achieved, and traveling safety and reliability are achieved.

The invention discloses a method for controlling the balance of vertical and horizontal imbalances of a secondary network. By setting the temperature sensor, the water supply temperature, return water temperature and indoor temperature are collected; the dynamic flow balance valve is set on the heating pipeline of each user; each unit is respectively equipped with a collection concentrator, which is used to collect the water supply temperature and return water temperature of each household and indoor temperature, the collection concentrator communicates with the remote control center. During regulation, according to the indoor target temperature and outdoor temperature, as well as the current indoor temperature, supply water temperature and return water temperature, the target value of the average temperature of the user's supply and return water is calculated and sent to the dynamic flow balance valve. The average temperature of the water level controls the increase and decrease of the flow rate until the stabilized indoor temperature reaches the indoor target temperature. The invention solves the problem that it is difficult to adjust the vertical and horizontal imbalances in the secondary network system at the same time, and the problem that the indoor temperature of each household is unbalanced leads to large measurement errors.

The invention provides a foldable dual-mode electric vehicle. A vehicle body module is divided into three parts of a front wheel part, a vehicle body part and a rear wheel part; the front wheel part is connected with the vehicle body part through a front partition plate and a front folding partition plate on the two sides, and the rear wheel part is connected with the vehicle body part through a rear partition plate and a rear folding partition plate on the two sides; the front folding partition plate is connected with the front wheel part and the vehicle body part through two pairs of front rotating shaft hinges; one end of the front partition plate is fixedly connected with a front wheel bracket of the front wheel part, and the other end of the front partition plate is detachably connected with the vehicle body part; the rear folding partition plate is connected with the rear wheel part and the vehicle body part through two pairs of rear rotating shaft hinges; and one end of the rearpartition plate is fixedly connected with a rear wheel bracket of the rear wheel part, and the other end of the rear partition plate is detachably connected with the vehicle body part. The foldable dual-mode electric vehicle has the beneficial effects that under a single-track electric bicycle mode, single wheel or all wheel driving can be achieved through a front wheel hub motor and a rear wheelhub motor, and the quick passing ability is achieved; under a double-track balance vehicle mode, the function of riding instead of walking is high; and meanwhile, the vehicle body part is provided with a balance adjusting device, the mass center of a vehicle body is adjusted autonomously, stable driving is achieved, and traveling safety and reliability are achieved.

A washing machine includes a plurality of sump tanks located round the rotation axis of the dehydration bucket and the water is retained through the centrifugal force. A water supply unit feeds water to the chambers without being in contact with them. A rotation controlling device controls the motor of the drive dehydration bucket. An eccentric load detection device forms eccentric load biased in the dehydration bucket to wqashings. A motion control device controls the water supply unit and rotation controlling device.

The present invention belongs to the field of the spectral analysis technology, and especially relates to an all-fiber Fourier expansion spectrum analyzer capable of accurate analysis and measurement of each light source spectrum. The analyzer comprises a light source to be measured 1, a connector 2, a first three-port fiber circulator 3, a second three-port fiber circulator 4, a first wavelength division multiplexer 5 and a second wavelength division multiplexer 6, a dual-port connected fiber coupler 7, a differential light path scanning device 8, a narrowband semiconductor laser 9, a first difference photoelectric detection signal amplifier 10 and a second difference photoelectric detection signal amplifier 11. The all-fiber Fourier expansion spectrum analyzer employs one input end of a difference photoelectric detection signal amplifier to use an adjustable attenuator so as to realize the balance adjusting of the optical path, eliminate the influence on the direct current intensity signal and the detector dark current, improve the dynamic scope of the system measurement, enhance the intensity of the interference signals and further improve the signal to noise ratio of the system.