34results about How to "Reduce severe vibration" patented technology

A method for controlling the dehydration operation of a washing machine, comprising: detecting an initial reference eccentric position and an initial eccentric amount of the drum when the drum of the washing machine rotates at a low speed; detecting the current eccentric position of the drum when the drum rotates at a high speed and then rotates at a low speed again and the current eccentricity amount; and controlling the dehydration operation according to the detected initial reference eccentricity position, the initial eccentricity amount, the current eccentricity amount and the current eccentricity amount.

The invention discloses a buffer device for garment processing. The buffer device comprises a buffer base, ventilation pipes are fixedly connected to the two sides of the buffer base, air bags are slidably connected to the outer side walls of one ends of the ventilation pipes, rubber sleeves fixedly sleeve the outer side walls of the air bags, a first cavity, a second cavity and a supporting frame are arranged in the buffer base, a fixed pulley support is fixedly connected to the top of the supporting frame, and a driving fixed pulley is rotationally connected with the inner side wall of the fixed pulley support. According to the buffer device for garment processing, by arranging the ventilation pipes, the air bags and the rubber sleeves, the air bags expand due to inflation of air, so that a garment processing outer frame obtains a good buffering effect, and strenuous vibration generated in the processing process of a garment processing device is effectively reduced; and meanwhile, a plurality of springs is avoided, and errors caused by displacement generated in the garment processing process when the springs exceed the elastic limit range of the springs are avoided.

The invention relates to an undercurrent external heat exchanger of a circulating fluidized bed, which comprises a feeding vertical pipe, a feeding chamber, a heat exchanging chamber, a coiled pipe heating surface arranged in the heat exchanging chamber, an inlet header, an outlet header, a first partition wall, a second partition wall, an overflow chamber, an ash returning pipe, and an undercurrent hole; wherein a row of undercurrent holes are arranged at the lower part of the first partition wall between the feeding chamber and the heat exchanging chamber so that both of the upper part and the lower part of the heat exchanging chamber are supplemented by high temperature circulating ash, thus improving the flowing and heat exchanging condition of a dead zone in the heat exchanging chamber; and the upper rand lower temperature gradient of the heating exchanging chamber decreases, which is beneficial to the mixing of the circulating ash; the integral heat exchanging performance of the heat exchanging chamber is enhanced; a walling is arranged next to a side wall; the bend part of the coiled pipe heating surface is buried in the waling, not only bears the support and fixes the coiled pipe and heat exchanger, reduces the vibration of the heat exchanger, but also protects the bend of the heat exchanging surface of the coiled pipe not to be corroded by the circulating ash. The technical solution of the invention is easily realized and beneficial to solve the problems of heat transmission, vibration and abrasion of the external heat exchanger.

The invention discloses a vibration-proof noise-reducing agitator feeds. The vibration-proof noise-reducing feed agitator comprises an agitator shell; the bottom of the inner cavity of the agitator shell is fixedly provided with a discharge outlet; a fixed plate is fixedly mounted on the left side of the agitator shell; a side plate is fixedly mounted on the side surface of the fixed plate; a rotating shaft movably connected with the output shaft of a driving motor is inserted into the central part of the side plate; a rotary fin sleeves the rotating shaft; the upper and lower ends of an air blowpipe are both fixedly provided with inclined plates located in the agitator shell; the upper and lower ends of the rotating shaft are both fixedly provided with installation rods; installation blocks are fixedly mounted on the tops of the installation rods; and agitation devices are fixedly mounted on the tops of the installation blocks. The vibration-proof noise-reducing feed agitator provided by the invention has the advantages of vibration prevention and noise reduction properties and overcomes the problem that violent vibration and frictional noise of machine parts due to great vibration and shaking during agitation of materials via conventional agitation devices result in noise pollution to surrounding environments and are not beneficial for prolonging the service life of machines.

The invention discloses a driverless car seat with a shock absorbing function. The driverless car seat comprises a seat body; four supporting columns are fixedly connected to the bottom of the seat body, and the bottoms of the four supporting columns are fixedly connected with fixing plates; a shelf is arranged under the four supporting columns; and the bottoms of the fixing plates are fixedly connected with connection plates, and the front surfaces of the connection plates are movably connected with supporting rods through pin shafts. According to the driverless car seat, by arranging the supporting columns, the supporting rods, slide grooves, first springs, vertical columns and sliding wheels, when a driverless car passes through a rugged road, the comfort of the seat is improved to a certain extent; the fixing plates, a spring column, a slide sleeve and a second spring cooperate with one another, when the fixing plates are stressed and pressed downwards, the slide sleeve moves to extrud the second spring downwards and is pushed upwards through the reset effect of the second spring, and accordingly, secondary shock absorbing of the seat is achieved; and after multiple times of shock absorbing, the effect is obvious, the shock sensation is reduced, and accordingly, a driver can sit on the seat more comfortably.

The invention relates to a combined type fuel tank for a rail flaw detection vehicle, and belongs to the technical field of fuel supply for diesel locomotives. The combined type fuel tank comprises afuel tank and storage battery boxes, wherein the two storage battery boxes are symmetrically arranged along the center line of the combined type fuel tank. The storage battery boxes are provided withheat dissipation openings and box doors, and guide rails for placing trays are arranged in the boxes. A body is provided with an oil filler, an oil level gauge, an electronic level gauge, an oil suction pipe and the like. Compared with the prior art, the fuel tank and the storage battery boxes are integrated as a whole, a lifting lug is arranged to integrally suspend the combined type fuel tank onan underpan of a vehicle body, the space of the underpan is greatly saved, the installation of flaw detection equipment and arrangement of piping are facilitated, and the demand for oil supply to a power system and a generator set is met; box body accessories of the combined type fuel tank are all arranged in a position convenient to quick repair and maintain; and structural plates inside the boxbody are all provided with through holes and groove-shaped holes, the free surface can be effectively reduced to attenuate the severe vibration of fuel during the running of the locomotives, and therunning stability is ensured.

The invention relates to an internal fixation plate and a machining tool and process thereof, and belongs to the field of medical instruments. The internal fixation plate sequentially comprises a main plate, a buckling plate and a hook plate, wherein the opposite end surfaces, located in the thickness direction, of the main plate are an operation surface and a contact surface respectively, the opposite side surfaces, located in the width direction, of the main plate are threading surfaces, a plurality of threading holes are formed in the main plate, and the threading holes are formed from the operation surface to one of the threading surfaces. According to the invention, through inclined arrangement of threading holes, the feeding depth of a drilling tool during machining of the threading holes is reduced, so that the vibration amplitude of the drilling tool caused by large drilling depth is reduced, the state stability of the drilling tool during working is improved, and the effects of reducing vibration and damage of the drilling tool and improving the forming quality of the threading hole are achieved.

The invention provides an assembly comprising a shoveling and milling machine arm frame and a milling and digging device. A quick-changing device of the shoveling and milling machine arm frame is connected with the base of the milling and digging device; the milling and digging device comprises the base, a milling and digging arm, a milling and digging headstock, a milling and digging head and a stabilizing oil cylinder; the base is connected with one end of the milling and digging arm through a rotary support; the other end of the milling and digging arm is rotatably connected with the milling and digging headstock; the milling and digging head is mounted on the milling and digging headstock; one end of the stabilizing oil cylinder is rotatably connected with the milling and digging arm;and the other end of the stabilizing oil cylinder is rotatably connected with the milling and digging headstock. In the assembly, the rotary support is additionally arranged in the milling and diggingdevice to replace traditional bolt connection, so that the working range and the variable angle of the milling and digging head are greatly increased, and the usable occasions of the assembly are expanded. The quick-changing device is provided with an independent quick-changing oil cylinder and a quick-changing pin, so that the milling and digging device is quickly detached, a bucket and other types of construction equipment are mounted; and during the entire process, the quick-changing oil cylinder is adopted to lock the milling and digging device, so that the equipment universality is enhanced while lowering the manual labor intensity.

The invention discloses a vibration reduction damper of a ship hatch cover guide frame, which comprises a top plate (1) and a bottom plate (2), wherein a damper main body is arranged between the top plate (1) and the bottom plate (2); the damper main body is formed by alternately overlaying and connecting damping alloy plates (3) and damping rubber plates (4); the circumference of the damper main body is provided with a rubber flat plate (5); and an alloy pipe (6) is inserted in the damper main body and is positioned between the top plate (1) and the bottom plate (2). The vibration reduction damper of the ship hatch cover guide frame not only can effectively reduce violent vibrations generated by the guide frame to ensure the normal running of machines and equipment, but also ensure rest and health of shipmen.

The invention relates to the technical field of transformers, in particular to a high-voltage rectification integrated transformer which comprises a box body, a transformer body, a first baffle and a second baffle, the transformer body is arranged in the box body, the first baffle is hinged to one side of the upper end of the box body, and the second baffle is hinged to the other side of the upper end of the box body. The first baffle is hinged to one side of the upper end of the box body, the second baffle is hinged to the other side of the upper end of the box body, the first baffle and the second baffle are oppositely arranged, a damping base is arranged at the lower end of the box body and connected with the transformer body, and a transmission mechanism is connected to one end of the hinged position of the first baffle and the second baffle. The transmission mechanism is connected to the outer side wall of the box body and used for driving the first baffle and the second baffle to rotate. The high-voltage rectification integrated transformer not only has a good damping effect, but also can effectively play a role in shielding rain and snow, and also can conveniently remove rain and snow.

The invention discloses a track damping walking device which comprises a main shaft connected with a frame, the walking mechanisms and the damping mechanisms. The two sides of one end, away from the frame, of the main shaft are symmetrically hinged to the walking mechanisms capable of rotating, and the damping mechanisms are further arranged between the walking mechanisms and the main shaft. Eachwalking mechanism comprises a bogie, a wheel carrier and wheels, one end of the bogie is hinged to the main shaft, the other end is connected with the wheels through the wheel carrier, and a damping mechanism is further connected between the bogie and the main shaft. The invention has the advantages that the bogie is hinged with the main shaft, so that when the bogie drives at the connecting positions between the rails and enters a turnout or a small-radius curve, the bogie can rotate around the main shaft adaptively, the violent vibration occurring when the bogie runs at the positions is reduced, and the damping effect is improved; meanwhile, by arranging the damping mechanisms, the running vibration is further reduced, and the device is simple in structure and high in reliability.

A sand pit loosening machine, which relates to the field of sports auxiliary equipment, includes a motor mechanism (1), a gear mechanism (2), a handle (3), a power cord (4), a shock absorbing device (5), The motor mechanism (1) is arranged at the middle upper end of the handle (3), the gear mechanism (2) is arranged at the lower end of the motor mechanism (1), and the motor mechanism (1) is electrically connected with the gear mechanism (2), and the handle (3) ) is provided with a switch (6), the switch (6) is connected to the motor mechanism (1) through the power cord (4), and a shock absorber (5) is arranged at the lower end of the motor mechanism (1). The upper end of the gear mechanism (2) is provided with a sand baffle (7). It can make up for the deficiencies of the existing technology, save time and effort, and can greatly improve work efficiency.

The invention discloses a noise reduction device of an automobile hub shot blasting machine. The noise reduction device comprises a stainless steel shell. Acrylonitrile-modified ethylene propylene rubber is arranged in the stainless steel shell. Ni-Ti-based twin crystal memory damping alloy round steel is inserted into the middle of the acrylonitrile-modified ethylene propylene rubber in the height direction. An AL-Zn superplastic damping alloy spring is embedded into the acrylonitrile-modified ethylene propylene rubber. The stainless steel shell is filled with the acrylonitrile-modified ethylene propylene rubber. Severe vibration of the automobile hub shot blasting machine can be effectively reduced, and normal operation of a machine and equipment is ensured; and noise is lowered, and it is ensured that workers can normally work and take a rest.