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165results about How to "Increase effective space" patented technology

Open-bench blasting method capable of controlling forward stroke of blasting muck pile

An open-bench blasting method capable of controlling a forward stroke of a blasting muck pile comprises the steps of conducting deep hole arrangement, conducting drilling construction, arranging initiation bombs and detonators in deep holes, mounting explosives in the deep holes, conducting detonator delayed initiation design on an earth surface network in the same blasting area, connecting the detonators in the blast holes with detonators of the earth surface network, and initiating the detonators. The method is characterized in that the detonator delayed initiation design of the earth surface network in the same blasting area is that the blasting area is divided into an earlier initiation control area and a later initiation control area which are initiated in sequence, and blasting occurs in the two initiation areas at one time. According to the method, as the blasting area is divided into the two initiation areas, the earlier initiation control area is initiated to provide the later initiation control area with a moving space for containing goods supply and create a free face space condition for the blasting of the later initiation control area. The forward stroke of the blasting muck pile can be controlled precisely and effectively. The safety of the mining operation is ensured, the assistant workload of an electric shovel is reduced, the production efficiency is improved, and the damage and loss caused by the blasting can be reduced.
Owner:ANSTEEL GRP MINING CO LTD

Supercritical carbon dioxide circulating system

The invention relates to the technical field of thermal energy power generation and discloses a supercritical carbon dioxide circulating system. The system comprises a compressing module, a heat source module, a turbine power generation module and a cooling module which are connected sequentially. The system further comprises a constant-temperature and constant-pressure module. The cooling moduleis connected with the compressing module through the constant-temperature and constant-pressure module. The constant-temperature and constant-pressure module comprises a constant-temperature chamber and a pressure stabilizing channel arranged in the manner of penetrating through the constant-temperature chamber. A heat exchange fin is arranged on the outer side wall face of the pressure stabilizing channel. The heat exchange fin is located in the constant-temperature chamber. The pressure stabilizing channel is filled with multiple damping balls. A circulating working medium outlet of the cooling module is connected with a circulating working medium inlet of the compressing module through the pressure stabilizing channel. According to the supercritical carbon dioxide circulating system, the constant-temperature and constant-pressure module replaces a large-capacity buffering tank, temperature and pressure fluctuation of circulating working media in the ocean jolting environment is reduced, and the ability of the circulating working media to maintain constant-temperature and constant-pressure parameters at an inlet of the compressor is improved.
Owner:WUHAN SECOND SHIP DESIGN & RES INST

LED ceiling lamp

The invention discloses an LED ceiling lamp with advantages of small volume, light mass, saving of ceiling space, low temperature rise, energy conservation, environmental protection, high light efficiency and capability of replacing the conventional ceiling tube lamp. The LED ceiling lamp comprises an LED circuit substrate (1), a light distribution plate (3), a light transmission front cover (4), a lamp framework (5), a front cover clamp spring (6), a spring bracket (7), a mounting spring (8) and a power supply bracket (9), wherein an LED (2) is arranged on the LED circuit substrate (1); a reflection groove (31) is formed on the light distribution plate (3); the LED circuit substrate (1) is fixedly connected with the light distribution plate (3); the reflection groove (31) corresponds to the position of the LED (2); the light transmission front cover (4) is positioned on the front of the light distribution plate (3); the light transmission front cover (4) is fastened on the lamp framework (5) through the front cover clamp spring (6) and presses the LED circuit substrate (1) and the light distribution plate (3) to be fixed; the spring bracket (7) and the power supply bracket (9) are fixed on the lamp framework (5); the mounting spring (8) is connected with the spring bracket (7); and the front of the lamp framework (5) is provided with an annular face ring (50).
Owner:深圳市兴皓地电子有限公司

Double-stator magnetic resistance type angle sensor

The invention discloses a double-stator magnetic resistance type angle sensor which comprises an inner stator and a rotor. A first sine air gap is formed between the inner stator and the rotor. The double-stator magnetic resistance type angle sensor further comprises an outer stator outside the rotor. A second sine air gap is formed between the outer stator and the rotor. The rotor comprises a magnetism isolating ring, an inner rotor portion arranged on the inner wall of the magnetism isolating ring and an outer rotor portion arranged on the outer wall of the magnetism isolating ring. Through the combination of an inner stator and rotor assembly and an outer stator and rotor assembly are arranged, the double-stator magnetic resistance type angle sensor is particularly suitable for a double-stator servo drive motor system, the system structure can be greatly simplified, the effective space of the motor is increased, and the double-stator magnetic resistance type angle sensor has the advantages of being simple in structure, high in reliability and the like. By changing the number of teeth of the rotor, the inner stator and the outer stator, the angle sensor with 1-8 pole pairs can be obtained, and the double-stator magnetic resistance type angle sensor is suitable for the servo motor system with different numbers of pole pairs, and has the advantages of being convenient to install and suitable for batch processing production.
Owner:JIANGMEN POLYTECHNIC

Three-dimensional high-precision multi-functional heat deformation test device

The invention discloses a three-dimensional high-precision multifunctional thermal deformation test device, wherein, a computer is installed in a machine base, an electric box is installed on the electric box mounting seat, a micro-motion workbench base is installed on the machine base, and a beam splitter is installed on the machine base. On the micro-motion device, the micro-motion device is installed on the base of the micro-motion worktable, the target mirror is installed on the X-direction workbench, the measuring rod seat is installed on the X-direction workbench, the left end of the measuring rod is installed on the measuring rod seat, and the electric sensing The micrometer is connected to the thermometer through wires, the bottom plate in the box is installed on the top of the support rod, the Z-direction workbench is installed on the right and left columns through the Z-direction rail pair, and the Z-direction adjustment hand wheel is installed on the Z-direction thread pair. At the bottom, the Z-direction thread pair is installed on the Z-direction worktable, the Y-direction worktable is installed on the top surface of the Z-direction worktable through the Y-direction rail pair, and the Y-direction adjustment handwheel is installed on the first-stage bevel gear pair. The parts are installed on the top of the Y-direction table, and the electric probe is installed on the right end of the measuring rod.
Owner:诏安县鹏达机械设计部

Power-and-free material-loading and transporting apparatus used for material-basket-free thermal-treatment furnace of aluminum alloy product

A power-and-free material-loading and transporting apparatus used for a material-basket-free thermal-treatment furnace of an aluminum alloy product belongs to the technical filed of thermal treatment devices of the aluminum alloy product. By means of parts, including a transporting roller track, a pre-assembling roller track, a material pushing machine, a material-feeding detection photoelectric tube, a material-full detection photoelectric tube, a power-and-free roller track, a removing roller cylinder, a removing motor, a material-loading fork and the like, the power-and-free material-loading and transporting apparatus enables workpieces arranged in a material-loading zone on the power-and-free roller track to be changed from one row into two or more rows, wherein the workpieces are pre-arranged by a material baffle. Redundant workpieces are removed from the roller cylinder and from the material-loading zone. The pieces in the material-loading zone are sent to the thermal-treatment furnace by the material-loading fork in one step for thermal treatment. By means of the power-and-free material-loading and transporting apparatus, automatic level of the device is improved and time period during material loading is effectively prolonged. In addition, the power-and-free material-loading and transporting apparatus can increase effective space in the thermal-treatment furnace by 20%, can reduce a production cost and can increase energy resource utilization rate.
Owner:SHENYANG NEU-SANKEN IND FURNACE MFG CO LTD

Key structure and terminal equipment

The invention provides a key structure and terminal equipment, the key structure comprises a support and a key, the key comprises a pressing part and two extension limiting parts, and the extension contact part is arranged in the middle of the pressing part. And the two extension limiting parts are symmetrically arranged on the two sides of the extension contact part. The extension limiting part comprises a first connecting part connected with the pressing part and a bending part connected with the first connecting part; the two bending parts are located between the two first connecting parts,and the free ends of the two bending parts are arranged opposite to each other. The support comprises an installation part and two blocking parts. The mounting part is used for arranging a contact assembly matched with the key; the two blocking parts are connected to the installation part and are used for interfering with the two bending parts respectively so as to block the button from being separated from the support. The key structure provided by the invention only comprises the bracket and the key, is simple in structure and convenient to assemble, and can improve the assembly efficiencyof a product, namely, the production efficiency of the product can be improved, and the production and manufacturing cost of the product can be reduced.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Connecting device between tank and pump

The invention provides a connecting device between a tank and a pump. The connecting device comprises a valve element and a valve seat. The lower end of the valve seat is sleeved with a pump material inlet connecting member. The valve element is composed of a valve shoe, a valve rod and a valve head. The lower end of the valve rod is connected with the valve shoe. The upper end of the valve rod is connected with the valve head. The valve head is located outside the upper end of the valve seat. The valve rod and the valve shoe are located in the valve seat. The valve shoe is supported on a supporting plate arranged at the upper end of the pump material inlet connecting member. The bottom of the valve shoe is in an inverted-arch shape. The valve head is a circular truncated cone. The valve seat is composed of a valve seat barrel, sliding sleeve fixing poles, a sliding sleeve and a valve seat flange. The valve seat barrel is connected with the sliding sleeve through the sliding sleeve fixing poles. A notch is formed in the lower end face of the valve seat barrel. The pump material inlet connecting member is composed of a flange and a welding barrel. When the pump material inlet connecting member is connected to the lower portion of the valve seat, the valve element moves upwards and a flow pass is opened; when the pump material inlet connecting member is moved away from the lower portion of the valve seat, the valve element moves downwards and the flow pass is closed. The connecting device has the characteristics of being convenient to install, small in occupied size and visual and reliable in blocking.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Integrated plate type heave-current control cabinet

The invention relates to the field of manufacture of an electrical switch control cabinet, and specifically relates to an integrated plate type heave-current control cabinet. The integrated plate type heave-current control cabinet comprises a cabinet body and a cabinet door for closing the cabinet body, the side surface of the cabinet body is provided with a strip-shaped groove facilitating removal of an integrated plate, the cabinet body is internally provided with a slide rail frame, the slide rail frame comprises slide rails fixed at the upper surface and the lower surface of the inner wall of the cabinet body and slide strips cooperating with the slide rails, the integrated plate is fixedly connected with the slide strips, the end portions of the slide strips are connected with a baffle plate for blocking the strip-shaped groove through bolts, and the baffle plate is provided with a handle facilitating pushing and pulling. The integrated plate type heave-current control cabinet has the following advantages; during installation, the integrated plate can realize fast wiring, the integrated plate is pushed in and removed from the side surface of the cabinet body, and the integrated plate can be rapidly installed.
Owner:镇江恒昇船舶设备有限公司

Fireproof insulation board of outer wall and preparation method of fireproof insulation board

The invention discloses a fireproof insulation board of an outer wall.The fireproof insulation board is prepared from 31-34 parts of cement, 32-39 parts of fly ash, 4-7 parts of quartz powder, 2-5 parts of paper pulp, 9-14 parts of inorganic fibers, 4-9 parts of lime, 1-3 parts of a water reducing agent, 1-3 parts of a composite activity activator, 35-85 parts of fly ash, 11-42 parts of vitrified microbeads, 12-35 parts of acrylic acid emulsion, 4-9 parts of a halogen-free phosphorus series, 2-11 parts of glass fibers, 1-6 parts of a defoaming agent and 1-4 parts of a dispersing agent.The outer side of a main structure is wrapped by the fireproof insulation board of the outer wall, therefore, the main structure can be protected, and the life of a building can be prolonged; hot bridges of a building structure can be effectively decreased, the effective space of the building is increased, the wall surface water condensation phenomenon caused by cold bridges and the hot bridges can be eliminated, and the living comfort degree is improved; the physical performances such as sound insulation and heat insulation of other building materials are not influenced; the fireproof insulation board is more beneficial for volatilization of harmful substances in an outer wall heat insulation material.
Owner:GUANGXI UNIV
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