31results about How to "Easy to manufacture, install and maintain" patented technology

The invention relates to a novel fully feeding combine harvester. The novel fully feeding combine harvester comprises a harvester frame, wherein a header is arranged at the front end of the harvester frame; a threshing device is directly connected and installed behind the header; a threshing cylinder in a threshing device is connected to two drive shafts in a manner of a motive power; a grain receiving hopper is arranged below the threshing cylinder; an exhaust inlet is arranged at the lower end of the grain receiving hopper; the exhaust inlet is communicated with a multi-cylinder grain and sundry separation device through an air suction pipe, so that grain and sundry in the grain receiving hopper enter into the multi-cylinder grain and sundry separation through the air suction pipe for separation; grains are discharged from a grain outlet for bagging; and sundries are blown away by a draught fan. The novel fully feeding combine harvester has the advantages of a simple and rational structure, strong practicability, convenience in production, installation as well as maintenance, and good use effects.

The invention relates to a stripping type combine harvester. A blade type crop-poking device is arranged at the front end of a harvester frame; the harvester frame is provided with upper and lower double-roller type threshing devices behind the blade type crop-poking device; a vibrating sieve and a grain receiving hopper are arranged below the upper and lower double-roller type threshing devices; a lower threshing roller is connected to the vibrating sieve and the grain receiving hopper through an eccentric wheel in a manner of a motive power; an upper threshing roller is connected to the blade type crop-poking device in a manner of the motive power; a rotary spiral roller stem-crushing device is arranged on the harvester frame and below the vibrating sieve and the grain receiving hopper; a back threshing roller is arranged on the harvester frame and behind the upper and lower double-roller type threshing devices; the vibrating sieve and the grain receiving hopper are arranged below the back threshing roller; an air suction hole is arranged at the bottoms of both the vibrating sieve and the grain receiving hopper; the air suction hole is communicated with a multi-cylinder grain and sundry separation device through an air suction pipe, so that the grains and the sundries enter into the multi-cylinder grain and sundry separation device for separation through the air suction pipe; the grains are discharged from a grain outlet for bagging; and the sundries are blown away from a draught fan opening.

The invention discloses a regeneration process and regeneration equipment for heavy metal containing nitric acid waste liquor. The regeneration process comprises the following steps of: evaporating nitric acid by virtue of an evaporative crystallization device under the action of negative pressure, condensing and recycling the nitric acid steam to obtain regenerated nitric acid; mixing heavy metal nitrate, which is recycled by a discharging system of the evaporative crystallization device, with concentrated sulfuric acid, stirring the mixture, cooling the mixture to room temperature, and filtering the mixture to obtain a heavy metal sulphate product in suction. The regeneration equipment comprises an evaporating device, a condensing and cooling device, a cooling and crystallizing device, a suction-filtering device and a horizontal ejection vacuum device, wherein the evaporating device, the condensing and cooling device and the cooling and crystallizing device are communicated in sequence. The regeneration process is high in nitric acid recovery rate, almost free of secondary pollution, capable of recycling the heavy metal to the greatest extend and high in market value of the recycled product. And the complete equipment is easy to manufacture, install, maintain and repair, low in energy consumption, and high in economical benefits and environment-friendly benefits.

The invention relates to a blowing type lifting separating device for a combine harvester. The blowing type lifting separating device is provided with an air inlet pipe which is communicated with a draught fan, the other end of the air inlet pipe is communicated with one end of an air flue at the bottom of a material collection hopper, the other end of the air flue at the bottom of the material collection hopper is connected with an air outlet pipe, a grain and impurity discharge opening is formed in the upper end of the joint of the air flue and the air outlet pipe, the grain and impurity discharge opening is communicated with the air flue and the air outlet pipe, the other end of the air outlet pipe is communicated with a grain and impurity separating device, and a spiral conveying device is arranged at the bottom of the grain and impurity separating device. The blowing type lifting separating device is simple and reasonable in structure, strong in practicability, convenient to manufacture, install and maintain, and good in use effect.

The invention relates to a reinforced convection heat exchange type water distribution and collection device for a cold source machine room. The device comprises a barrel, wherein a first overhauling flange is arranged on the middle part of the barrel, barrel end caps are arranged at two ends of the barrel, second overhauling flanges are arranged at the joints of the barrel and the barrel end caps, a plurality of stainless steel corrugated pipes are arranged in the barrel, the adjacent stainless steel corrugated pipes are connected through a corrugated pipe segmentation flange and a corrugated pipe reinforcing connecting rod, the stainless steel corrugated pipes are fixed with the barrel through a plurality of limiting supports, the stainless steel corrugated pipes positioned at two ends in the barrel are connected with corrugated pipe joints, and the corrugated pipe joints pass through the barrel end caps and are connected with a heat exchange pipeline; and a main water pipe is arranged on the top of the middle part of the barrel, a plurality of branched pipes are uniformly distributed on two sides of the main water pipe, and the main water pipe and the branched pipes extend into the barrel. The device has the advantages of two purposes, high cost performance, good heat exchange effect, low flow resistance, reasonable shunt, space saving and capability of selectively exchanging heat, and is easy and convenient to manufacture, install and maintain.

The invention provides a cooling ventilator for a locomotive traction transformer. The cooling ventilator comprises a mounting rack, two boxes, air inlets, impellers, two output-shaft motors and an outtake, wherein the two output-shaft motors are mounted on a connecting beam of the mounting rack; each of the two output-shaft motors is connected with the left impeller and the right impeller; the two boxes are used for accommodating the left impeller and the right impeller connected onto the two output-shaft motors; a partition board for partitioning each box into a front box and a rear box is arranged in each box; an air inlet mounting plate for fixing each air inlet is arranged on the air inlet side of each box and is connected with the side wall of the air inlet side of the corresponding box; the front end and rear end of each box are connected with a parallel beam of the mounting rack; and a mounting hole for allowing a motor shaft to stretch into the corresponding box is formed in a motor mounting side of the corresponding box. According to the cooling ventilator for the locomotive traction transformer, the two motors and the two boxes are directly mounted on the same mounting rack, so that the structure is simple and compact, the manufacture, installation and maintenance are convenient, the size is small and the flow rate is large.

The invention discloses a hydraulically-driven reaming-while-drilling tool. The hydraulically-driven reaming-while-drilling tool mainly solves the problem that an existing reaming-while-drilling toolis small in reaming range. The hydraulically-driven reaming-while-drilling tool is characterized by comprising three parts including a starting device main body, a driving device main body and an executing device main body; a throttling reversing valve is arranged in the starting device main body and comprises a throttling reversing valve cavity, a throttling reversing valve element, a throttlingspring and a throttling reversing valve gland; and a throttle reversing valve switch is controlled to be started by the displacement of a drilling pump, and after the throttle reversing valve is opened, a piston of a hydraulic cylinder in the driving device main body descends under the action of liquid pressure to drive a cutter wing of a four-rod mechanism in the executing device main body to extend out to start reaming work. According to the hydraulically-driven reaming-while-drilling tool, under the condition that drilling is not affected, the reaming range can be enlarged, and the reamingrate can reach 60%.

The invention discloses a thermal treatment process timed prompting and alarming device, which comprises an AC/DC power supply DC1, contactors from the first to the seventh, time relays from the first to the fifth, a double-pole double-throw power switch, a manual switch K1, a manual switch K2, a manual switch K3, indicating lamps from D1 to D4, an alarming lamp D5 and an alarming loudspeaker H. The thermal treatment process timed prompting and alarming device has the beneficial effects that: the device can prompt the operator to carry out process confirmation at regular intervals, solves the problems of instability and randomness of working parameter data acquisition during the thermal treatment production process, has obvious stable processing capability, and prevents falsification. The thermal treatment process timed prompting and alarming device has the functions of manual/automatic starting, sound-light alarming, prompting alarming of timed prompting on operator to carry out process confirmation, thermal treatment completion prompting alarming, water level abnormity alarming, furnace door abnormity alarming, calculation of duration that the operator fails to operate as required, and manual misoperation prevention. The thermal treatment process timed prompting and alarming device has the advantages of simple structure, convenient operation, good expansibility and convenient manufacturing, installation and maintenance.

An integrated kitchen range without lampblack discharge comprises a shell (6), and an air inlet (1) is arranged at the upper part of the shell (6). The integrated kitchen range is characterized in that an inner air duct body (4) is arranged in the shell (6) and located on the lower part of a range head (2), positive pressure air outlets (5) forming central negative pressure are symmetrically arranged on the inner air duct body (4), the outer side of the inner air duct body (4) is provided with an air duct (21) and a lampblack duct (22), and oily particles in a central negative pressure cavityof the inner air duct body (4) rotate downwards rapidly; an inverted cone-shaped outflow channel (8) is connected to the lower part of the inner air duct body (4), and an oil throwing wheel (9) is installed in the inverted cone-shaped outflow channel (8); and oily particles generated by center separation of the inner air duct body (4) pass through the inner air duct body (4) to fall on the oil throwing wheel (9) and flow into a waste oil container (13) arranged at the inner bottom of the shell along the inner wall of the inverted cone-shaped outflow channel (8), and a filter element (12) for filtering flue gas to achieve zero emission is arranged on the inner wall of the lower part of the shell (6). The integrated kitchen range without lampblack discharge has simple structure, is convenient to manufacture, install and maintain, and can realize zero emission without pollution.

A scrubbing tower provided with a flow blocking wall comprises a tower body, a spray layer, a catalysis layer and gas inlets and is characterized in that the spray layer is located at the upper part of the catalysis layer, the gas inlets are formed in the side surface of the lower part of the tower body, and the annular flow blocking wall is arranged on the inner wall of the tower body from the spray layer to the catalysis layer. According to the scrubber, the flow blocking wall is arranged, so that corrosion of the tower wall by a scrubbing solution is prevented, and the scrubbing tower is simple in structure and convenient to manufacture, mount and maintain.

The invention discloses an upper table top moving device for a microscope, relating to the technical field of microscope parts. The upper table top moving device for the microscope comprises a steel wire rope, a first pulley, a second pulley and a hand wheel assembly shaft, wherein the first pulley is connected with the hand wheel assembly shaft, the second pulley is fixedly connected with an upper table top, the first pulley is connected with the second pulley through the steel wire rope, at least two rings of the steel wire rope are wound on the first pulley and the second pulley, and two ends of the steel wire rope are connected through a tension spring. By adopting the steel wire rope gearing, the upper table top moving device has the advantages of simple structure, convenience for manufacture and installation and maintenance, capability of absorbing shaking, and stability in transmission.