34results about How to "Improve job controllability" patented technology

The invention discloses a method for setting up an integrated block of a hydraulic device, and the method is characterized by comprising the following steps that cast iron or forged steel is adopted as an integrated material, a block body is machined into a cubic structure, and a superimposition form of multiple integrated blocks is adopted for the situation that the hydraulic system is complicated and multiple control valves exist; an upper surface and a lower surface of each superimposed integrated block are respectively set as a superimposition joint surface and simultaneously provided with a common pressure oil hole, a leak oil hole and three bolt holes; and one side surface of four surfaces of the integrated block is communicated with an oil pipe of a hydraulic actuation element, the other three side surfaces are used for installing a hydraulic valve, and a hole which is communicated with each valve is drilled inside the block body according to the requirement of a system diagram; and the installation position of the valve makes the communicated oil holes stay on the same horizontal plane as far as possible. The method has the beneficial effects that the movement precision of the machine is improved, the service life is prolonged, and the stress of the machine body is assisted; and the operation controllability is improved, and the labor intensity is alleviated.

The invention discloses a high-voltage pulse energy-gathering jet generating system and its application method. The system includes a high-pressure pulse energy-gathering jet generator, a gas supply system, a fluid supply system and a hydraulic oil supply system. The high-voltage pulse energy-gathering generator includes a rear End cover, pressure cylinder, piston, sliding sleeve, piston sleeve, energy-concentrating nozzle and front end cover, this system can adjust the delivery pressure of the air source supply system according to different rock hardness conditions, and can form the maximum pressure without increasing power consumption The high-pressure pulsed energy-concentrating jet that is several times stronger than the rock can achieve efficient crushing of hard rock formations and improve the efficiency of hard rock roadway excavation.

The invention discloses a simulation experiment method for drilling-blocking prevention of a rock drill in a cave. The method comprises the following steps of: firstly, controlling a rod-disassembling mechanism to pressurize a drilling rod to cause a pressure value of rotary pressure to be stabilized to 12MPa; in the process of the simulation of drilling rocks by a down-the-hole drill, controlling a propulsion handle in an operator cab to pressurize a propulsion mechanism to cause a pressure value of propulsion pressure to be stabilized to 8MPa, and simulating a normal propulsion state of the down-the-hole drill in the process of drilling the rocks; controlling the propulsion handle to depressurize the propulsion mechanism to reduce the propulsion pressure to 5MPa suddenly, and simulating a drilling-blocking phenomenon in the cave and wherein a setting value of a pressure relay of a propulsion circuit is 3MPa, which is less than a critical propulsion pressure value of the drilling-blocking prevention in the cave; and drawing a change curve of the propulsion pressure with changes with time in the process. The method provided by the invention has the beneficial effects that the drilling-blocking problem is solved, the normal drilling operation of the rock drill is ensured, the service life of the rock drill is prolonged, and the body of the rock drill can be assisted to be stressed.