49results about How to "Easy to counterweight" patented technology

The invention discloses a vehicle three-dimensional centroid detection method, which comprises the following steps of: aiming at the problem that the stability of a vehicle is influenced by a centroidposition in the moving process, deducing a gravity center calculation formula of a complex geometry in principle, and establishing a mathematical model; taking contact points of four wheels of the vehicle and the ground as measuring points according to the established mathematic model, establishing coordinate positions based on the measuring points, detecting stress at stress points, deducing a gravity center three-dimensional coordinate position calculation formula and establishing a centroid detection model according to a principle that a moment vector of three-dimensional coordinates is '0', and giving force measuring points and coordinate values; and acquiring various parameters of the vehicle in the walking operation by means of sensors, transmitting the parameters to a computer simultaneously, and outputting signals to adjust walking operation parts of the vehicle based on a centroid position detected according to the centroid detection model and the acquired parameters by meansof the computer, and realizing steady-state driving of the vehicle. The vehicle three-dimensional centroid detection method can basically meet actual use requirements and design objectives.

The invention discloses a heat transfer film cutting device with a function of freely regulating cutters. The heat transfer film cutting device is improved on the basis of a normal cutter drive mechanism, and a plurality of cutter controllable regulating units are designed at the periphery of a cutter mounting frame driven and controlled by a cutter stamping drive air cylinder for replacing an original inflexible cutter mounting mechanism. Each cutter controllable regulating unit comprises a clamping block for fixing one cutter and perpendicular to the cutter, a transverse displacement servo drive device connected with and used for driving the clamping block to transversely move, and a horizontal rotary angle servo drive device connected with and used for driving the transverse displacement servo drive mechanism to rotate, and further comprises a PLC which is used for controlling the transverse displacement servo drive mechanism and the horizontal rotary angle servo drive device to act. By virtue of the cutter controllable regulating units, degree of freedom, in aspects of transverse movement and rotation, of the cutters are realized, so that spacing and angles of the cutters can be freely regulated within a certain range, and therefore, cutting shapes and dimensions of a heat transfer film are increased to adapt to needs, and production cost of enterprises is saved while production efficiency is improved.

The invention particularly discloses an electric vehicle low-voltage high-current battery pack combination device and a control method. A plurality of single-cell lithium batteries are parallelly connected and serially connected to form a certain-voltage certain-capacity battery pack, the plurality of battery packs integrating with a battery monitor are serially connected to form a low-voltage certain-capacity battery pack branch, and the battery pack branches are parallelly connected to form a low-voltage high-current lithium battery assembly. The combination means is flexible, and the requirements of lithium batteries with various voltages and capacities can be met. A control device for the lithium battery pack combination device is capable of controlling an IGBT (insulated gate bipolar transistor) switch to charge and discharge in different ways according to the current states of the bather pack branches, the battery pack branches can operate in an optimal operation area to the maximum extent, the service life of each battery is prolonged as far as possible, the battery assembly is guaranteed to operate in the safe operation area, and the requirements of electric vehicles for power supply are also met.

The invention discloses a dumbbell group facilitating balance weight adjustment. The dumbbell group includes a storage seat and a dumbbell; the dumbbell includes a handle and two balance weight units, wherein each balance weight unit includes a brake cover, a rotation disc, an end disc, a plurality of hook discs, a plurality of balance weight blocks and a rotation limiting member; when the dumbbell is arranged on the storage seat, a brake block on the brake disc is pushed to slide to a releasing position, the handle, the rotation disc, and the hook discs can rotate with respect to the brake disc, and then relative positions between convex portions and gaps of the hook discs and hooking convex portions of the balance weight blocks are adjusted, each balance weight block is selectively arranged in each balance weight space or released from the balance weight space, and balance weight adjustment can be achieved; when the dumbbell is away from the storage seat, the brake block slides to a brake position, and then the handle, the rotation disc and the hook discs cannot rotate with respect to the brake disc, and the balance weight blocks in the balance weight spaces cannot be released from the hook discs; and in this way, the balance weight can be easily adjusted.

The invention discloses an automatic water feeding device for drinking fountain based on binocular vision. The automatic water feeding device comprises a walking mechanism, a posture adjusting mechanism, a clamping mechanism and a sensing mechanism, wherein the posture adjusting mechanism and the sensing mechanism are arranged on the walking mechanism, and the clamping mechanism is arranged on theposture adjusting mechanism. The walking mechanism adopts a crawler-type structure to improve road adaptability and running stability; a column adopts a parallel double column structure, a diagonal bracing rib plate is fixedly connected between the column and a base to form a triangular support, the structural stability of the device is improved, the counterweight is optimized, and the operationerror caused by load-bearing problem is reduced; the clamping mechanism is driven through the cooperation of a worm gear and a worm to achieve rotation; because of a self-locking property, the devicecan keep the unchanged posture even if the power is suddenly cut off, the safety of the device is improved, and the device has the characteristics of large load-bearing capacity, stable transmission and low noise; two cameras cooperate to form the binocular vision, which can quickly search and identify a target, the clamping accuracy of the clamping mechanism is improved, effective obstacle avoidance can be achieved through a ranging sensor, and the operation safety is improved.

The invention discloses a heat transfer film cutting device with a function of freely regulating cutters. The heat transfer film cutting device is improved on the basis of a normal cutter drive mechanism, and a plurality of cutter controllable regulating units are designed at the periphery of a cutter mounting frame driven and controlled by a cutter stamping drive air cylinder for replacing an original inflexible cutter mounting mechanism. Each cutter controllable regulating unit comprises a clamping block for fixing one cutter and perpendicular to the cutter, a transverse displacement servo drive device connected with and used for driving the clamping block to transversely move, and a horizontal rotary angle servo drive device connected with and used for driving the transverse displacement servo drive mechanism to rotate, and further comprises a PLC which is used for controlling the transverse displacement servo drive mechanism and the horizontal rotary angle servo drive device to act. By virtue of the cutter controllable regulating units, degree of freedom, in aspects of transverse movement and rotation, of the cutters are realized, so that spacing and angles of the cutters can be freely regulated within a certain range, and therefore, cutting shapes and dimensions of a heat transfer film are increased to adapt to needs, and production cost of enterprises is saved while production efficiency is improved.

The invention discloses a joint power-supply control system for detector power subsystem. The joint power-supply control system comprises a backup discharge switch, a joint power-supply discharge regulator, a power-supplied detector discharge switch, a power-supply detector discharge switch and a double-device discharge switch, wherein the backup discharge switch is provided with a first connecting end, a second connecting end and a switching end, the switching end is connected between the first connecting end and the second connecting end in a switching way, and the switching end is connected with an electric circuit of a power-supplied detector through a circuit; the joint power-supply discharge regulator is connected between the switching end of the backup discharge switch and the electric circuit of the power-supplied detector through the circuit; both ends of the power-supplied detector discharge switch are respectively connected with a power supply of the power-supplied detector and the first connecting end of the backup discharge switch through circuits; the power-supply detector discharge switch is connected between the power supply of the power-supply detector and the electric circuit through the circuit; and one end of the double-device discharge switch is connected between the power-supply detector discharge switch and the electric circuit of the power-supply detector through the circuit, and the other end of the double-device discharge switch is connected with the second connecting end of the backup discharge switch through the circuit. The joint power-supply control system disclosed by the invention achieves the purpose that the short-time insufficient energy of a single detector can be supplied by other detectors jointly.

The invention provides a balance weight adjustment device for engineering machinery and the engineering machinery. The balance weight adjustment device comprises a pumping device, a first liquid storage box and a second liquid storage box, wherein the pumping device comprises a hydraulic pump; the first liquid storage box is communicated with the second liquid storage box; a hydraulic loop is formed among the first liquid storage box, the second liquid storage box and the hydraulic pump; the first liquid storage box and the second liquid storage box are mounted at different positions of the machine body of the engineering machinery; the pumping device is controlled to adjust the weight of counterweight liquid in the first liquid storage box and the second liquid storage box so as to adjust the center of gravity of the engineering machinery. According to the invention, when the balance weight adjustment device is mounted in the engineering machinery, the weight of the counterweight liquid in the first liquid storage box and the second liquid storage box is adjusted to more conveniently adjust the balance weight at the first liquid storage box and the second liquid storage box, so that the weight state of the engineering machinery can be effectively improved, the center of gravity of the engineering machinery is adjusted, and the adaptation of the engineering machinery to the working condition is improved.

The invention discloses a method for detecting a three-dimensional center of mass of a vehicle, comprising the following steps: aiming at the problem of the stability of the vehicle being affected by the position of the center of mass during motion, inferring the calculation formula of the center of gravity of a complex geometric body in principle, and establishing a mathematical model; according to the established mathematical model , take the contact points between the four wheels of the vehicle and the ground as the measuring point, establish the coordinate position with the measuring point, detect the force at the force point, and use the principle of the moment vector of the three-dimensional coordinate as "0", and introduce the calculation formula of the three-dimensional coordinate position of the center of gravity And establish the center of mass detection model, give the force measuring point and coordinate value; use the sensor to collect various parameters in the running of the vehicle, and transmit the various parameters to the computer at the same time after the collection, the computer detects the center of mass position and the collected data according to the center of mass detection model. Various parameters output control signals to adjust the various components of the vehicle's running operation to realize the steady state driving of the vehicle. The invention can basically meet the requirements of actual use and design goals.

The invention discloses a virtual instrument-based balance coefficient tester and a test method thereof. The tester includes a color sensor, a clamp current sensor, a controller, a computer (with a virtual instrument) and a printer. The clamp current sensor is clamped on any one phase of the three-phase power output by the elevator inverter, and is used to detect the current of the corresponding phase. The color sensor is used to align the white mark marked on the elevator traction wire rope when the elevator car and the counterweight are on the same horizontal line. When a detection signal is generated, the signal triggers the clamp current sensor to detect the instantaneous current of one phase of the three-phase output of the elevator inverter. This phase is the output phase of the elevator inverter clamped by the clamp current sensor. The invention does not need to manually draw balance coefficient curves, reduces errors caused by environmental influences and human influences, and improves the accuracy of test data.