Abstract: The invention relates to a mechanical arm joint which comprises a hollow shaft and a brake assembly, a motor assembly, a harmonic reducer assembly, an output assembly, a housing assembly, and a measurement assembly which are disposed outside the hollow shaft, the measurement assembly includes a torque sensor, and the torque sensor is provided inside the housing assembly and fixed to the housing assembly, the torque sensor is fixed to the harmonic reducer assembly at the same time. The torque sensor is provided in the joint, so as to ensure that the torque sensor is not damaged by external impacts during assembling and maintaining of the joint and the mechanical arm.

Abstract: A rapid mining method for sandstone-type uranium resources in a uranium and coal superposed area, which relates to the technical field of mining engineering is provided. The method includes: arranging a high-density adjustable well pattern in an in-situ leaching mining area; determining a length and a position of a filter located on the in-situ leaching mining area through a digital well construction technology; and in a production stage, carrying out operations such as pumping/injection centralized filtration, intensified leaching, high-intensity extraction, high-intensity injection, and change of layout of the high-density adjustable well pattern to rapidly obtain sandstone-type uranium resources in a uranium and coal superposed area. A recovery speed of the sandstone-type uranium resources can be improved, and service life of the in-situ leaching mining area can be shortened.

Abstract: The present disclosure relates to a method and a system for determining a well spacing for in-situ leaching mining of a high-permeability sandstone-type uranium/copper deposit.

Abstract: The invention discloses a modular robot joint, encoder reading head position adjustment mechanism and method for adjusting the position of an encoder reading head, the encoder reading head position adjustment mechanism is disposed on one side of the encoder reading head bracket, and includes a lower support and a upper support, the lower support and the upper support are connected to each other and positioned by a positioning connecting member, the upper support is pressed tightly against the lower support by a pressing connecting member, the encoder reading head is fixed to the upper surface of the upper support and is opposite to the encoder magnetic ring, the encoder magnetic ring is fixed to the motor shaft or the hollow shaft, the distance between the lower support and the upper support can be adjusted by adjusting the pressing connecting member and positioning connecting member, so that the axial distance between the reading head and the magnetic ring can be adjusted to a predetermined value, the proces

Abstract: The invention relates to a mechanical arm joint which comprises a hollow shaft and a brake assembly, a motor assembly, a harmonic reducer assembly, an output assembly, a housing assembly, and a measurement assembly which are disposed outside the hollow shaft, the measurement assembly includes a torque sensor, and the torque sensor is provided inside the housing assembly and fixed to the housing assembly, the torque sensor is fixed to the harmonic reducer assembly at the same time.

Abstract: The invention discloses a cable guided structure comprising a threading portion, a guiding portion, and a mounting portion; wherein, the threading portion includes a threading hole surrounding wall, and a threading hole is formed in the threading hole surrounding wall, and the cable can be passed through the threading hole; the guiding portion forms into a long structure, and is used to guide the cable; the mounting portion is used to fix the cable guided structure to other components. The cable guided structure of the present invention can fix the cables in the narrow space of the robot arm, and prevents the cable from rubbing against other components, and also prevent the cables from moving or abrasion during moving of the robot arm.

Abstract: The present invention discloses an in-situ leaching method and system. The ISL mining method provided by the present invention includes: constructing a vertical guiding well into an ore body; constructing a horizontal well towards the vertical guiding well, where the horizontal well includes a vertical section and a horizontal section; one end of the horizontal section is connected to the vertical section, and the other end of the horizontal section is connected to the vertical guiding well; constructing a plurality of vertical extraction wells towards the horizontal section; and simultaneously injecting lixiviant into the vertical section and the vertical guiding well by means of pressurized injection, and extracting leachate through the vertical extraction well. The ISL mining method and system provided by the present invention accomplish the injection through a horizontal well.

Abstract: The present invention discloses an in-situ leaching method and system. The ISL mining method provided by the present invention includes: constructing a vertical guiding well into an ore body; constructing a horizontal well towards the vertical guiding well, where the horizontal well includes a vertical section and a horizontal section; one end of the horizontal section is connected to the vertical section, and the other end of the horizontal section is connected to the vertical guiding well; constructing a plurality of vertical extraction wells towards the horizontal section; and simultaneously injecting lixiviant into the vertical section and the vertical guiding well by means of pressurized injection, and extracting leachate through the vertical extraction well. The ISL mining method and system provided by the present invention accomplish the injection through a horizontal well.