34results about How to "The processing technology is simple and reliable" patented technology

The invention discloses an operating mechanism of an electricity leakage reclosure circuit breaker, relating to the technical field of circuit breakers and overcoming the defects that the radial force of a motor rotating shaft of the existing electricity leakage reclosure circuit breaker is unbalanced to cause the damage of a motor. The operating mechanism comprises a handle and a motor which are arranged on a body, the handle is connected with the motor by a connecting rod, a ratchet wheel is arranged on the motor, the connecting rod is connected with a pawl through a crank, the ratchet wheel and the pawl are meshed, an elastic sheet is arranged between the connecting rod and the crank, and a manual push rod is arranged on the connecting rod; when the motor works, a multi-pawl structure can ensure the balance of radial force of the motor rotating shaft, thus avoiding the damage to the motor due to radial force generated in rotation of a crank connecting rod mechanism; when the motor is not needed to work, the ratchet wheel does not work when manual operation is adopted, the pawls and the ratchet wheel can be separated by rotating a shaft on the crank, so that the crank connecting rod mechanism can successfully run reliably towards one way.

The model type super statically combined bearing beam large scale vibrating screen comprises screening plate, beam connection formed screening box, elastic support under the screening box, laser vibrator, motor and drive device on the motor base, model like super statically combined bearing beam inside the screening box, connecting with the screening box through high intensity hinging screw, output and inlet end of the screening box having rectangular closed beam connected with the combined bearing beam, and forming an enclosed big rigid container. It has increased structural rigidity, alleviated vibrating weight, improved efficiency, simplified structure, and simple processing. Due to its structural reliability, improved composite mechanical reliable life, it can meet extensive application in many industries.

The invention discloses a thermal expansion valve with a one-way control function, which comprises a valve body (1), a temperature-sensing component (2), and a first valve core component ( 4), the first valve core part (4) includes a valve stem (41) and a first valve core (42), and the valve body (1) is also provided with a housing part, and a cover body ( 5), the inner hole (16) of the cover body (5) communicates with the inlet channel (11) and the inner cavity (13) to form a fluid auxiliary channel. Compared with the prior art, the belt The thermal expansion valve with one-way control function simplifies the processing technology of the valve body by providing a cover body on the valve body. And in the preferred solution, the valve port and sealing position can be processed at one time by stretching, and the guiding part or restricting part is set by stamping, which makes the processing process simpler and more reliable, and is suitable for mass production.

The invention relates to the technical field of semiconductor memories, and discloses a nanoscale non-volatile resistive random access memory unit utilizing a hemi-spherical grain (HSG) electron beam resist and a preparation method thereof. The memory mainly comprises a first conductive electrode, a through-hole, a first resistive material, a second resistive material, a second metal nano layer, a third resistive material and a third conductive electrode, wherein the through-hole and the first resistive material are formed after a hydrogen silsequioxane (HSQ) electron beam resist is exposed and developed via electron beams. A part left after the HSQ electron beam resist is exposed and developed is utilized as the through-hole, the diameter of the through-hole can be as small as a nano magnitude, and the HSQ electron beam resist which is not completely developed at the bottom of the through-hole can be used as a part or the whole of the first resistive material. By utilizing the preparation method, the resistance changing memory which has the advantages of small device area, high yield and good performance can be obtained; and the semiconductor memory is apt to large-scale integration and practicality.

The invention discloses a preparation method of a polycarboxylate superplasticizer. The method comprises the following steps: adding an initiation assistant and a single-molecular unsaturated monomer containing a polyether long chain to a reaction kettle, rapidly adding unsaturated carboxylic acid, a reducing agent and a chain transferring agent in a dropwise manner, copolymerizing the unsaturated monomer and the unsaturated carboxylic acid at normal temperature, carrying out heat insulation, and neutralizing the obtained material to neutrality in order to obtain the polycarboxylate superplasticizer. The polycarboxylate superplasticizer has a high water reducing rate, and the preparation method has the advantages of simplicity, no need of a heat source, short reaction period and low energy consumption.

The invention relates to a wedge-block type one-way clutch. The surface of a star wheel inner hole is a smooth cylindrical face. A drive gear in a drive gear assembly is arranged in the star wheel inner hole, and the peripheral surface of the drive gear is a smooth cylindrical face. A plurality of wedge blocks are arranged between the star wheel inner hole and the periphery of the drive gear, and the multiple wedge blocks are tightly arranged to form a circle in a surrounding manner in the circumferential direction. Each wedge block is provided with a slotted groove with an opening located in the outer end of the wedge block. The bottom faces of the slotted grooves are inclining faces, and the inclining directions of the bottom faces of the slotted grooves of all the wedge blocks are the same. Elastic rings are embedded in the slotted grooves of the wedge blocks forming one circle in the surrounding manner and have inward tightening force for the wedge blocks forming one circle in the surrounding manner. Under the action of the tightening force of the elastic rings, the outer ends of the wedge blocks conduct wedge-caulking on the surface of the star wheel inner hole, and the inner ends of the wedge blocks conduct wedge-caulking on the surface of the periphery of the drive gear. The wedge-block type one-way clutch is compact in structure, ingenious in design, small in size, small in weight, large in transmission power and high in machining precision, and the one-way clutch can have more stable work performance, higher reliability and longer service life.

The invention discloses a grounding installation plate of an electric control cabinet and an electric control cabinet, which are designed to solve the problems of unsafe use of the existing electric control cabinet and the like. The grounding mounting plate of the electric control cabinet includes a base plate, the two side edges of the base plate are respectively bent inwards and provided with first bending edges, and the outer edges of the first bending edges are respectively bent outwards and provided with second bending edges. Bending edges; the base plate and the first bending edges on both sides enclose an accommodating space for accommodating the grounding bar and the grounding terminal; the base plate has a ground terminal installation hole; the second bending edge There are fixing holes for fixing the grounding mounting plate on the top. At the same time, an electric control cabinet with the grounding mounting plate is proposed. By setting the grounding mounting plate supporting the grounding bar, the grounding bar is in contact with the guide rail of the handcart to realize the grounding of the handcart and effectively protect the safety of operators and carrying instruments.

The invention discloses a soft rock roadway anchored concrete filled steel tube anti-floor heave device and a construction method thereof. The construction method comprises the following steps: punching pile holes at the two sides of the floor of a roadway, embedding a steel tube body in the pile holes, pouring cement mortar, fixing the steel tube body in the pile holes, pouring concrete in the steel tube body to form a steel pipe pile, enabling an anchor rod or an anchor cable to penetrate the through holes of the steel tube pile and be anchored in rock formation at the two base angles of the roadway, sheathing cushion blocks, and fastening by nuts to form an anchoring structure. The invention can effectively control the roadway floor heave, improve stress distribution, and have the advantages of simple and convenient construction process, low cost, short time limit, superior cost performance, and stable physical mechanical properties.

The invention discloses a fire-responsive temperature-controlled battery, a preparation method and application thereof, and belongs to the technical field of fire monitoring. The temperature-controlled battery of the present invention includes an electrode and an electrolyte, and a phase change protection layer is arranged between the electrode and the electrolyte to isolate the contact between the electrolyte and the electrode. The temperature-controlled battery of the present invention has no electric energy output in a natural environment, but in a high-temperature environment, the phase change material changes to make the battery work and output electric energy, so that the temperature can control the power output of the battery. The temperature-controlled battery is low in cost, suitable for large-area control in a natural environment, and can effectively increase the placement density of fire monitoring nodes.

The invention discloses a low-pressure casting method of an aluminum alloy motor shell internally provided with a spiral coil pipe water way. A stainless steel or copper or aluminum spiral coil pipe water way is prefabricated, a water inlet and a water outlet are formed in the side faces of the spiral coil pipe water way, a boss for positioning is arranged on the water inlet and the water outlet, according to the structure of the spiral coil pipe water way, a motor shell low-pressure casting mold is prepared, the spiral coil pipe water way is positioned and assembled in the motor shell low-pressure casting mold, the assembled motor shell low-pressure casting mold is placed above a heat preservation furnace of a low-pressure casting machine to be subject to low-pressure casting forming, and through low-pressure casting, the prefabricated spiral coil pipe water way is casted in the aluminum alloy motor shell. The casting auxiliary process and the auxiliary time can be greatly saved, production efficiency is improved, after casting, no sand core in the motor shell needs to be cleaned, the casted aluminum alloy motor shell is few in defect, high in precision, and not prone to deformation, cracking and water leaking, the aluminum alloy motor shell is high in casting quality, and the production cost is low.