4results about How to "Realize full closed-loop control" patented technology

The embodiment of the invention provides a horizontal type primary-secondary exchange workbench. The horizontal type primary-secondary exchange workbench comprises a workbench base; the working table mother disc is connected with the working table base through a special rotary table bearing; the working table sub-disc is connected with the working table mother disc through a zero point positioning system; the power transmission system is connected with the workbench mother disc and provides a power source; the brake system is connected with the workbench mother disc and provides brake force; the angle feedback system comprises an encoder fixing seat and an angle transmission flange, the encoder fixing seat is connected with the workbench base, the angle transmission flange is connected with an oil way distribution inner ring, and the oil way distribution inner ring is connected with the workbench mother disc; and the oil path and gas path butt joint system is arranged between the workbench base and the workbench mother disc. The power transmission system selects a proper transmission structure according to specific working conditions, the angle feedback system monitors the rotating angle of a workbench mother disc in real time through an angle encoder, and full-closed-loop control is achieved through matched use of a high-precision angle encoder and a bearing special for a rotary table.

The utility model relates to the technical field of oil outlet nozzles, in particular to an oil drum self-closing oil outlet nozzle which comprises an inner push-out oil pipe. The device further comprises an outer fixing sleeve, a fixing plate, a tough plate, a locking plate, a first air return hole and a second air return hole. The upper end of the periphery of the inner push-out oil pipe is sleeved with the outer fixing sleeve. The locking plate is pulled to be far away from the outer fixing sleeve, when oil is poured, the oil enters the inner push-out oil pipe, the inner push-out oil pipe is pushed to move in the direction of the closing piston through the pressure of the inflow oil, and at the moment, the locking plate slides along the outer wall of the outer fixing sleeve; when the piston is closed, the inner push-out oil pipe is pushed to reset, after the inner push-out oil pipe is reset, the locking plate is driven to move towards the inner push-out oil pipe through the characteristics of the tough plate till the locking plate is located at the bottom of the outer fixing sleeve, the position of the inner push-out oil pipe is fixed through mutual abutting of the locking plate and the outer fixing sleeve, and the locking function is achieved.

This utility model relates to a linear motor direct drive worktable with a safety protection device. The utility model includes a linear guide rail mounted on the machine tool bed; a worktable body with a slider slidably connected to the linear guide rail at its bottom; a linear motor including a primary and a secondary component, the primary component mounted at the bottom of the worktable body and the secondary component mounted on the machine tool bed; a linear encoder ruler mounted on the machine tool bed and extending along the sliding direction of the worktable body; an encoder ruler reading head mounted on the worktable body corresponding to the linear encoder ruler; a first and a second limit buffer device, respectively mounted on the machine tool bed and located on opposite sides of the worktable body's moving direction; and a braking device mounted on the slider. This utility model achieves high-speed, stable, and safe linear motion of the worktable.

The utility model relates to cast -iron pipe production equipment technical field provides a cast -iron pipe casting device of automatic regulation pouring quantity, including tipping frame, tipping frame, servo drive motor speed reducer, pinion, big sector gear, connecting rod drive mechanism and molten iron sector package, the upper end rotatable setting turnover shaft of tipping frame, and tipping frame is fixedly installed on the turnover shaft, tipping frame is fixedly installed with molten iron sector package in, the lower end of tipping frame is installed with servo drive motor speed reducer, the both ends of servo drive motor speed reducer are connected with transmission shaft respectively, the end of transmission shaft sets up pinion, and pinion is engaged with big sector gear, big sector gear is hinged with tipping frame, big sector gear is hinged with connecting rod drive mechanism, connecting rod drive mechanism is fixedly connected with turnover shaft, the utility model can make the actual molten iron quantity of molten iron sector package more uniform equality in unit time, improves cast -iron production qualified rate.