39results about How to "With modular design" patented technology

The invention relates to a self-blowdown vibration-absorbing foot for a wall-climbing robot, which is characterized in that the device consists of an upper plate component, a lower plate component, a blowdown mechanism, a driving cam, a lathe dog bearing, a cam sleeve, an upper and lower plate connecting piece, a stabilizing ring, a fastening spring, a retaining nut and a blowdown mechanism fastening bolt, wherein the driving cam drives the cam sleeve and the upper and lower plate connecting piece to reciprocate along a guide bar through the lathe dog bearing; air absorption and discharge control of the absorption device is completed through positive and negative rotation of a motor by utilization of an eccentric unilateral bearing; and the stabilizing ring ensures that the overall stability of the robot can not be influenced by self vibration when the absorption device is used as the foot of the robot. The absorption device can be normally operated on the indoor painted metope; and when the absorption device is operated on the ceramic tile wall surface, the positive tensile load can reach 120 newtons, the power consumption is only 2 watts, the deadweight is 300 grams, and the occupied space is phi 120X50. Compared with the prior absorption device, the performance of the absorption device is obviously better.

The invention discloses an implementation method of an LCD drive circuit and a source electrode drive circuit module. The source electrode drive circuit module is characterized by consisting of a precharge voltage generation circuit (100), a gamma voltage division circuit (200), two to four groups of M-level gray scale generation circuits (300) and an equilibrium gamma load drive circuit (400), wherein, output of the precharge voltage generation circuit (100) is a precharge voltage Vper which is a positive precharge voltage Vpper or a negative precharge voltage Vnper, the output of the gamma voltage division circuit (200) is N gray scale reference voltages, namely, V1, V2 to VN, and the N gray scale reference voltages V1, V2 to VN are respectively connected with the two to four groups of M-level gray scale generation circuits (300) the output of which is two to four groups of gray scale voltages, the gray scale voltages and display data (G_DATA) are jointly connected to an input terminal of the equilibrium gamma load drive circuit (400), and the gamma drive output voltage and the precharge voltage Vper are taken as the source electrode drive output.

The invention discloses a surrounding rock weathering simulation device and a surrounding rock weathering simulation method for underground roadways, and is applicable to weathering simulation of easily-weathered roadway surrounding rock in mine shafts. The surrounding rock weathering simulation device comprises a constant temperature system, a constant temperature and humidity system, a weathering system, a ventilation system and a data acquisition system. The surrounding rock weathering simulation method includes putting a test piece simulating the surrounding rock of the roadways into a sealing box and fastened, sequentially turning on the constant temperature system and the constant temperature and humidity system, setting the temperature and the humidity as standard values specified by an experiment, and turning on the data acquisition system; turning on a negative-pressure fan to start the weathering simulation experiment, wherein the data acquisition system monitors temperature,humidity and wind speed of gases flowing into the test piece in real time, and observes and records surface weathering changes at different time through a camera in real time. The surrounding rock weathering simulation device and the surrounding rock weathering simulation method have the advantages of visually-observed detection result, high precision, modularized design, easiness in operation and low cost.

The invention relates to the field of mills, and discloses a cylinder structure of a large modular mill, which includes several cylinders connected to each other. End flanges are respectively connected to the two ends of the cylinders. At least one annular flange, one side of the cylinder is connected to the installation base of the excitation device through at least one annular flange; the other side of the cylinder is connected to a counterweight through at least one annular flange, and the counterweight is used to adjust both sides of the cylinder The weight; the lower ends of both sides of the cylinder are respectively provided with spring bases. The invention adopts a vibrating mill and arranges it horizontally to realize dry and wet grinding. An excitation device is arranged on one side of the cylinder, and a counterweight is arranged on one side. The cylinder structure is provided with a spring base and supported by springs. The large size of the mill is well completed, the processing, manufacturing and transportation are convenient, and the modular design of the mill is realized. The invention has excellent features such as high ball loading rate, low energy consumption, and common use for dry grinding and wet grinding.

The invention provides a self-propelled plant protection machine and relates to agricultural mechanical equipment. The technical problems that modular design of an existing plant protection machine is poor, spray rods cannot automatically return, the stirring effect of an agent box is poor, the structure is complex, and operation is inconvenient are solved. The self-propelled plant protection machine comprises an agricultural operation vehicle composed of a vehicle body, a drive system and a hydraulic system. A frame is arranged on the vehicle body, a water system assembly is arranged on the frame, a lifting mechanism is installed on the flange installation face of the frame, and hydraulic quick-change connectors of the frame are connected with hydraulic parts of the plant protection machine. The water system assembly is composed of an agent box, a hydraulic motor, an agent pump, a water segregator, a filter, a three-way ball valve, a direct-connection ball valve, a filter element, a water inflow manifold block, a water return manifold block, a washing water gun and a water quick-change connector. A jet flow stirring nozzle is arranged in the agent box. A spray rod system assembly is composed of a primary spray rod, a secondary spray rod and a tertiary spray rod. The self-propelled plant protection machine is used for farmland management and has the advantages that modular design is achieved, the structure is simple, operation is convenient, the stirring effect of the agent box is good, and the spray rods automatically return.

The invention relates to a DSP and FPGA based energy storage flywheel magnetic bearing control system and method. The system includes a DSP algorithm module, an FPGA drive control module, a magnetic bearing power module, a magnetic bearing signal monitoring module, a magnetic bearing signal conditioning module, an A / D conversion module, an LCD display module, a keyboard and a host computer communication module. The DSP algorithm module is in electric signal connection with the FPGA drive control module, the magnetic bearing power module is in electric signal connection to a PMW generator of the FPGA drive control module. PWM is used to complete current level control on the flywheel magnetic bearing coil, so as to complete the real-time control of the flywheel operation; the magnetic bearing signal monitoring module in electric signal connection realizes monitoring of a displacement signal of a flywheel magnetic bearing rotor and a current line signal of the magnetic bearing coil. The invention has the advantages of simple circuit, stable system and high control precision.