9results about How to "Avoid operational hazards" patented technology

This utility model discloses a tool magazine control sub-panel device for a multi-spindle machining center, relating to the technical field of tool magazine control panels. It includes: a panel body with four sets of mounting holes on its surface, each set of holes having a threaded mounting base connected to its inner wall; and four mounting bases having an emergency stop button, an invalid button, a tool forward rotation button, and a tool reverse rotation button respectively secured to their inner walls; and a limiting mechanism including a flexible fixing base and a side-mounted bracket. This device, by setting up a tool magazine control sub-panel, allows operators to control the machine frame and tool magazine movements simultaneously while performing tool magazine-related operations. This is efficient, allows for real-time observation, and prevents accidents caused by other personnel operating the machine frame and tool magazine from the front panel. The sub-panel also enables the machine frame to stop, preventing the dangers of multiple operators.

The embodiment of the utility model provides a sealing structure for a vacuum pump, and relates to the technical field of vacuum pumps. The sealing structure for the vacuum pump comprises an upper cylinder body, a lower cylinder body, a first bearing seat, a second bearing seat, a sealing gasket and two sealing rings, and the upper cylinder body and the lower cylinder body are connected to form a pump body; one end of the pump body is connected with the first bearing seat, and the other end of the pump body is connected with the second bearing seat; a first sealing groove is formed in the surface, connected with the upper cylinder body, of the lower cylinder body; second sealing grooves are formed in the surfaces, connected with the first bearing seat and the second bearing seat, of the pump body; and the first sealing groove is communicated with the second sealing groove. The sealing gasket is located between the upper cylinder body and the lower cylinder body and installed in the first sealing groove. The two sealing rings are located between the pump body and the first bearing seat and between the pump body and the second bearing seat correspondingly, and the sealing rings are installed in the second sealing grooves. According to the sealing structure for the vacuum pump, the vacuum pump can be sealed without sealant, combined sealing is adopted, and the sealing performance is improved.

The present invention belongs to the field of fine chemicals, and discloses an electrochemical method for preparing cis-hexahydrophthalic anhydride from phthalic anhydride in one step. By developing a supported Pt3Rh electrocatalyst for efficient benzene ring hydrogenation, it is highly selectively converted into high-value-added chemical cis-hexahydrophthalic anhydride in one step, thereby realizing resource utilization of phthalic anhydride. The method uses clean and sustainable water as a hydrogen source, with mild reaction conditions and is green and environmentally friendly. With a proton exchange membrane reactor as a reaction device, continuous production can be achieved and catalyst coking and deactivation caused by traditional thermal catalysis can be effectively avoided. The conversion rate of phthalic anhydride, the selectivity of cis-hexahydrophthalic anhydride, and the current efficiency can all reach more than 90%.

The present invention belongs to the technical field of energetic ion compound synthesis application, and in particular, relates to a method for synthesizing energetic ion compounds by bipolar membrane electrodialysis filtration plus electric reaction. The present invention provides a method for synthesizing energetic ion compounds by bipolar membrane electrodialysis filtration plus electric reaction, utilizing potential difference, by bipolar membrane-cationic membrane electrodialysis filtration plus electric reaction, to realize the transfer and removal of metal ions; or by bipolar membrane-anion membrane electrodialysis filtration plus electric reaction, to realize the transfer of anionic energetic compounds, and finally realize the synthesis of anionic energetic compound ammonium salt or hydrazine salt and the removal of metal ions, avoiding the use of organic solvents, avoiding the drying and dehydration of energetic compounds, avoiding the yield loss caused by repeated transfer of solid materials and the danger of operation. At the same time, the energetic ion compounds are separated and concentrated by membrane filtration concentration, effectively avoiding the problems of high energy consumption, easy decomposition, and easy explosion generated in the conventional concentration process.

The utility model discloses a kind of rope saw cutting monitoring system and rope saw cutting device, the system includes for monitoring rope tension tension sensor, for monitoring device vibration acceleration sensor, for monitoring driving motor load load sensor, for monitoring device feed displacement displacement sensor, for monitoring cutting temperature temperature sensor and for monitoring cooling water flow rate flow sensor;Tension sensor is installed on the tensioning wheel of rope;Acceleration sensor is arranged at rack or rope protection shell;Load sensor is arranged on the loop of driving motor and can monitor the current of driving motor, or, it is arranged on the main shaft of driving motor and can monitor the torque of driving motor;Displacement sensor cooperates with feed mechanism and can monitor the displacement of rack;Temperature sensor is arranged near cut joint or rope;Flow sensor is arranged on cooling water pipeline.The system can be accurately grasped by operator Device state, cutting temperature and cooling water flow rate can also be monitored.

The invention discloses a multifunctional solid-liquid mixing tank and a mixing method thereof. The multifunctional solid-liquid mixing tank comprises a closed tank body and a conical tank bottom arranged at the lower end of the closed tank body, an annular partition plate extending downwards from the top end is arranged in the closed tank body, a main stirring area is formed in the annular partition plate, and an auxiliary stirring area is formed between the outer side of the annular partition plate and the inner wall of the closed tank body and communicated with the main stirring area through the lower end of the annular partition plate; a main stirrer and an auxiliary stirrer which extend to the main stirring area and the auxiliary stirring area are respectively arranged at the top end of the closed tank body; an overflow check ring is arranged on the inner wall of the closed tank body in the circumferential direction, and an overflow groove is formed between the overflow check ring and the inner wall of the closed tank body; a plurality of overflow ports are circumferentially formed in the outer wall of the closed tank body; the top end of the closed tank body is provided with a liquid feeding hole and a solid feeding hole corresponding to the main stirring area; the top end of the closed tank body is provided with observation ports corresponding to the main stirring area and the auxiliary stirring area. The device can effectively control the equivalent diameter and content of solid insoluble substances in the slurry / solution, realizes high-efficiency uniform mixing, and reduces the stirring energy consumption.

The invention discloses a heald frame positioning and installing device which comprises a main body frame, a power and guide assembly and a positioning assembly, the power and guide assembly comprises a jack, a jack top plate, a guide shaft and a heald frame top plate, the jack is fixedly installed at the bottom in the main body frame, and the jack top plate is fixedly installed at the top end of an ejector rod of the jack; the guide shaft is fixedly mounted on the jack top plate and upwards penetrates through the top plate of the main body frame, and a heald frame top plate is fixedly mounted at the top end; the positioning assembly comprises a positioning rod, a positioning plate and a locking sleeve, the positioning rod is installed between the heald frame top plate and the jack top plate, the positioning rod is sleeved with the positioning plate and the locking sleeve, and the locking sleeve is located below the positioning plate. The device is simple in structure and convenient to operate, can assist manpower in completing height positioning installation of the heald frame, greatly reduces the physical labor of installation personnel, avoids operation danger, can reduce half of the installation personnel, improves the installation efficiency and precision, and ensures the product quality and consistency of the air jet loom.

The utility model discloses a special remote control module for an intelligent distribution box, which is mounted in the distribution box and comprises a shell and a circuit board mounted in the shell. A power supply unit, a storage unit, an indication unit, a driving unit used for cooperating with remote operation to control power-on of a main loop of the distribution box, a data processing unit, a single-chip microcomputer, and a communication unit used for transmitting real-time data of the distribution box to a remote monitoring center are integrated on the circuit board. The single chip microcomputer is respectively connected with the power supply unit, the memory, the indicating unit, the driving unit, the data processing unit and the communication unit, a wiring terminal with a plurality of wiring ports is arranged on the circuit board, and the wiring terminal is positioned outside the shell. The power distribution box is additionally arranged in the power distribution box, a maintainer carries out examination and approval electrification in a mobile phone code scanning mode before maintenance, the maintenance safety is improved, the danger of non-professional personnel operation is avoided, the communication unit can transmit real-time data of the power distribution box to a remote monitoring center, maintenance and management are convenient, and the labor cost is reduced.

The utility model relates to the technical field of waste processing equipment, in particular to a waste briquetting machine convenient for feeding and discharging, which comprises a compacting bin, a hopper mounted at the top of the compacting bin, a feeding conveyor belt mounted on one side of the hopper, a pushing component mounted inside the compacting bin, a discharging port arranged at the bottom of one end of the compacting bin, and a discharging port arranged at the bottom of the other end of the compacting bin. A collecting bin is arranged on the lower portion of the compacting bin, and the pushing component presses materials into blocks, discharges the blocks from the discharging port and collects the blocks into the collecting bin. According to the waste briquetting machine facilitating feeding and discharging, the design that the feeding conveying belt is matched with the hopper is adopted, automatic conveying of materials is achieved, manual feeding is not needed, and manpower input is reduced; the material pushing component drives a pressing plate and a material blocking plate to act through a material pushing air cylinder, the process that materials enter the compaction bin is accurately controlled, and waste and accumulation of the materials are avoided; and a discharging air cylinder, a switch shaft and a switch baffle of the discharging part are matched with one another, the briquetting materials can be rapidly and stably discharged from a discharging opening and enter a collecting bin, and the whole feeding and discharging process is smooth.