47results about How to "Reduce eccentric force" patented technology

The invention relates to an aviation high-speed generator rotor structure, which comprises a plurality of V-shaped slot wedges, a wing-shaped slot wedge, a winding, two hoop rings and a magnetic pole iron core. The aviation high-speed generator rotor structure is characterized in that the V-shaped slot wedges are changed into triangular slot wedges, a wedge block is arranged on a triangular cross beam, and the upper surface of the wing-shaped slot wedge is aligned with an excircle of the magnetic pole iron core. The aviation high-speed generator rotor structure has the advantages that the magnetic pole iron core, an excitation winding, the slot wedges and the like in a main generator rotor form a whole, the work intensity problem of products at a high rotating speed is solved, in addition, because the wing-shaped slot wedge and the surface of a rotor iron core approximately form a whole circle, the problem of surface friction loss of the high-rotating-speed rotor is reduced, and the efficiency of a generator is improved. The excitation winding on the rotor is tightly pressed by the slot wedges, so the offset of the winding during the rotation at a high rotating speed is reduced, the eccentric force reduction caused by unbalance quantity due to high-rotating-speed rotation is reduced, the load is low during the bearing rotation, and the work reliability of the generator is improved.

A high-frequency napping needle punching machine, including a frame, a feeding mechanism, a brush ring curtain, a stripping board, a needle punching mechanism and a pulling mechanism; The shaft assembly and the two lancet assemblies arranged side by side, the speed of the two transmission shaft assemblies is the same and the direction of rotation is opposite. A plurality of crankshafts in between; the crankshaft includes two shaft heads and a boss integrally connected, the boss is cylindrical and its center line deviates from the axis of the shaft head; a crankshaft corresponds to a lifting transmission mechanism, and the lifting transmission mechanism includes a rocker arm , a push rod and a guide sleeve, the upper end of the rocker arm is sleeved on the boss of the corresponding crankshaft, the lower end of the rocker arm is hinged with the upper end of the push rod, and the lower end of the push rod is connected with the corresponding needle assembly. The needling mechanism of the present invention has higher needling frequency and less vibration excitation, which is beneficial to improve production efficiency and product quality.

The invention provides a motor and equipment comprising the same. The motor comprises a stator assembly and a mover assembly. The stator assembly comprises a first stator and at least one second stator; the mover assembly comprises at least one mover; stators in the stator assembly and movers in the mover assembly are oppositely arranged at intervals, and air gaps exist between the adjacent stators and movers; each stator has the same number of pole pairs; and the first stator is provided with a first winding. According to the technical scheme, the multiple stators are arranged, magnetic fluxsaturation limitation of the single stator is overcome, maximum output of the motor can be improved, and a current protection degree is reduced.

The invention discloses a main shaft of a photovoltaic tracking support, which is made of a pipe fitting with a closed section, a mounting surface of one side of the main shaft for mounting a purlineis a plane, two sides of the main shaft are vertical to the mounting surface, one side of the main shaft opposite to the mounting surface is an arc surface, and two sides of the main shaft have the same width. Due to the special shape of the main shaft of the photovoltaic tracking support adopting the technical scheme, when the main shaft is applied to the photovoltaic tracking support, the crosssection of the main shaft resists moment, compared with square and round main shafts in the prior art, under the condition that the same thickness is guaranteed, the resistance moment is greatly improved, and the main shaft has good practical application value. The resistance moment of the cross section of the main shaft is improved, the weight is lighter, the cost of the main shaft is saved, andthe eccentric force of the panel assembly is reduced. After the main shaft is applied to the photovoltaic tracking bracket, besides the technical effects, the stress of the photovoltaic tracking bracket is more uniform, and the installation is more convenient and faster.

The invention relates to an anchorage pile or tension pile head stub rod connecting device suitable for the foundation pile bearing capacity static test. The device comprises a conversion connector arranged on the pile head, a through hole allowing a pile head stub rod to penetrate is formed in the conversion connector, the portion, stretching to the upper side of the conversion connector, of the pile head stub rod forms a clamping part, a bolt hole used for being matched with a tension rod is formed in the conversion connector, and the device further comprises a clamp fixedly arranged on the clamping part. Tedious construction procedures of welding and the like of the pile head stub rod can be avoided, filed mounting and detaching are convenient, and the device is beneficial to improvement of the test result precision. Meanwhile, erecting and detaching efficiency of a foundation pile test platform is improved, and the safe stability of the test platform can be effectively ensured.

The invention belongs to the technical field of air conditioner manufacturing, and particularly relates to a machining machine for surface treatment after molding of air conditioner compressor accessories. The machining machine comprises supporting legs and a workbench; the bottom surface of the workbench is provided with a rotating motor, the rotating motor is fixedly connected with a supportingblock, the supporting block is provided with a slot matched with a lower shaft sleeve of a swash plate, the workbench is provided with supporting frames, and the top of the supporting frames is provided with a mounting plate; a sleeve, a connecting shaft, a connecting block, a connecting rod, an adjusting rod and a limiting column are mounted on the mounting plate; the diameter of the limiting column is equal to the inner diameter of the lower shaft sleeve of the swash plate; a guide groove is formed in the workbench, and a steel ball is in rolling fit in the guide groove; a bearing plate is mounted on the steel ball, a limiting rod is mounted on the bearing plate, and magnet pieces are arranged on the outer part of the limiting rod in a sleeving manner; a limiting mechanism and a wire drawing mechanism are mounted on the inner side face of each supporting frame; and a grinding mechanism is mounted on the bottom surface of the mounting plate. When the swash plate is subjected to surface grinding and drawing adopting the machining machine, longitudinal shaking does not occur on the swash plate, and the uniformity of grinding and wire drawing on the surface of the swash plate is improved.

The invention, which belongs to the field of civil engineering, discloses a test device for simulating a horizontal earthquake effect bearing by a cross-shaped beam-column joint. The test device comprises a shaft stress loading device for applying pressures on a test piece column top, a reciprocating loading device for applying a horizontal force on the side of a column end, and a fixation frame for fixing the reciprocating loading device. The bottom of the test piece column is hinged to the ground by a hinging piece; connecting rods arranged vertically are arranged between the beam end and the ground; and the two ends of the connecting rods are hinged to the beam end and the ground respectively by hinge bases. In addition, the test device also includes a first sleeve sleeving the column bottom, a second sleeve in contact with a free end of the shaft pressure loading device, and a third sleeve coating the connection part between the column top and the shaft stress loading device; the third sleeve has a structure with two open ends, one open end coats the periphery of the column top, and the other open end coats the periphery of the shaft stress loading device; a separation board isarranged between the two open ends and is in contact with the test piece column top; and the three sleeves are connected into one by connecting pieces. With the test device, the stable axial stress ratio is realized; and the actual condition of bearing the horizontal earthquake effect by the beam-column joint is reflected truly.

An electric connector includes an insulation base, a cover which is slidably connected to the base and an eccentric driving cam which is connected to the insulation base and the cover. The insulation base has a first limit surface. The cover has a second limit surface. The eccentric driving cam includes a first stop surface and a second stop surface. The first stop surface is stopped by the first limit surface and the second stop surface is stopped by the second limit surface, providing a dual-stop effect.

The invention relates to an all-dimensional planetary ball mill with directly-connected speed reduction motors. The all-dimensional planetary ball mill comprises a rack, a planetary motor, a transmission speed reducer, a transmission shaft, a planetary bearing, a rotating stand, milling tanks, a turning motor, a turning speed reducer, a turning shaft and a turning bearing. The planetary motor is fixed on a fixed frame which is fixed at the lower end of the rack, rotated by 90 degrees and shaped like a Chinese character 'zhong', an output shaft of the transmission speed reducer penetrates through a bottom plate seat at the lower end of the rack to be connected with the bottom end of the transmission shaft, the top end of the transmission shaft penetrates through a regular octagon installation platform to be connected with the rotating stand, the milling tanks are fixed on the rotating stand, a main shaft of the turning motor is connected with an input shaft of the turning speed reducer, an output shaft of the turning speed reducer is connected with one end of the turning shaft, and the other end of the turning shaft is connected with the side end of the rack. According to the all-dimensional planetary ball mill with the directly-connected speed reduction motors, the unique structure and principle of the speed reducers are utilized, original additional tension force and eccentric force are reduced, and meanwhile the size can be decreased; therefore, the effects of reducing abrasion, reducing noise and prolonging the service life are achieved.

A high-frequency co-location punching machine, including a frame, a net feeding mechanism, a lower web stripping board, an upper web stripping board, a needling mechanism and a pulling mechanism; the upper needling mechanism includes two upper drive shaft assemblies and two upper The needle assembly, the lower acupuncture mechanism includes two lower transmission shaft assemblies and two lower needle assemblies, and is characterized in that: the upper transmission shaft assembly and the lower transmission shaft assembly each include a left half shaft, a right half shaft and a plurality of crankshafts, The crankshaft includes two shaft heads and a boss integrally connected. The boss is cylindrical and its center line deviates from the axis of the shaft head; one crankshaft in the upper transmission shaft assembly corresponds to an upper lifting transmission mechanism, and the upper shaking in the upper lifting transmission mechanism The upper end of the arm is socketed on the boss of the corresponding crankshaft; one crankshaft in the lower transmission shaft assembly corresponds to a lower lifting transmission mechanism, and the lower end of the lower rocker arm in the lower lifting transmission mechanism is socketed on the boss of the corresponding crankshaft. The invention has high acupuncture frequency and small vibration excitation, which is beneficial to improve production efficiency and product quality.

The invention relates to a stuffing extruding and dehydrating device, which effectively solves the problem of incomplete dehydration and difficult cleaning of stuffing; the technical solution is to include a vertical support rod, which is covered with a rotatable sleeve, A plurality of boxes are fixed on the outer circumference of the sleeve; a telescopic rod is connected between the sleeve and the box, and a tension spring is set on the telescopic rod to make the telescopic rod actively shrink; the lower end of the box is open, and the upper end is provided with a feeding port; each Each box is equipped with upper and lower support plates, both of which can move up and down and reset; there is a central hole in the middle of the support plate, and sealing devices are installed on the upper and lower parts of the box respectively. A cloth bag that runs through up and down is installed, the upper end and the lower end of the cloth bag are respectively connected to the upper and lower sealing devices, and the middle part of the cloth bag passes through the upper and lower center holes. The invention twists and squeezes the cloth bag to make the stuffing into a large ball. The shape and size of the filling are not easily damaged, and the moisture inside can be squeezed out.

The invention provides a lifting rib device for a washing machine, a washing machine having the same, and a control method thereof, wherein the lifting rib device includes a base, a rotating assembly, a telescopic assembly and a lifting rib, and the base is arranged on the inner wall of the inner cylinder of the washing machine; the rotating assembly and the telescopic assembly Under the action, the lifting ribs rotate along the circumferential direction of the inner cylinder and move radially; Clothes position, the weight detection device detects the weight of the clothes in the clothes storage position, and transmits the weight to the washing machine controller, and then the controller controls the movement of the rotating component and telescopic component of the lifting rib device, breaks up the clothes and moves them to the adjacent clothes storage In the position, the weight of clothes in each storage position is similar, avoiding large vibrations caused by uneven distribution of clothes during the dehydration process of the washing machine; the invention has simple structure, high degree of automation, uniform distribution of clothes, and stable operation of the dehydration program of the washing machine.

The invention relates to a vegetable dehydration equipment, which effectively solves the problem of incomplete dehydration and difficult cleaning of fillings; the technical solution is to include a vertical support rod, the support rod is covered with a rotatable sleeve, and the outer circumference of the sleeve is There are multiple boxes fixed; the lower end of the box is open, and the upper end is provided with a feeding port; each box is equipped with two support plates up and down, both of which can move up and down and reset; the middle of the support plate has a central hole , the upper and lower parts of the box are respectively equipped with sealing devices, and a cloth bag passing through up and down is installed between the upper and lower sealing devices. The center hole; the cloth bag can be twisted and squeezed; the present invention twists and squeezes the stuffing through the cloth bag, making the stuffing into a large ball, and the shape and size of the stuffing is not easy to be damaged.

The invention discloses a gas static pressure bearing with a floating thrust surface. The gas static pressure bearing comprises a bearing body, a bearing lining, a floating thrust surface body and an elastic plate, wherein the bearing body sleeves the bearing lining; one end of the bearing body is connected with one end of the elastic plate in a sealing manner; the other end of the elastic plate is connected with the floating thrust surface body in the sealing manner; the elastic plate and the floating thrust body are connected with one end, in the axial direction, of the bearing body in sequence; a plurality of gas holes which are communicated in a matched manner are formed in the bearing body, the elastic plate and the floating thrust body; the elastic plate is made of an elastic material. According to the technical scheme, the thrust surface is changed to be in a floating type structure, so that a gas film clearance between the gas bearing and a shaft body is uniform, eccentric force of the bearing is reduced, and the axial bearing capacity of the gas bearing is greatly improved; and therefore, the gas bearing can be used for bearing a high axial load and achieving the high flow and the high rotating speed.

The invention discloses a solid-stone bare-rock riverbed trestle used for the deepwater high-pier long-span bridge construction and a construction method thereof. The trestle includes a trestle body and a horizontal work platform located on the front side of the trestle body. The trestle body includes a lower-portion support structure, a main beam and a bridge deck; the lower-portion support structure includes one or more steel abutment anchoring piles, the lower portions of the steel abutment anchoring piles are anchored to a bare-rock riverbed, the front end of the main beam is supported ona steel cofferdam, the rear end of the main beam is supported on a shoreside surpport platform, and a concrete pumping pipe is placed on the bridge deck; the horizontal work platform is set up on thesteel cofferdam and is connected with the main beam, and each steel abutment anchoring pile includes a groined steel abutment and a steel abutment anchoring structure. The method includes the steps of1, construction of the steel abutment anchoring piles, 2, erecting of the main beam and 3, paving of the bridge deck. The solid-stone bare-rock riverbed trestle is reasonable in structural design, easy to construct and good in use effect, the steel abutment anchoring piles are stably supported on the bare-rock riverbed, the front end and rear end of the main beam are supported on the steel cofferdam and the shoreside support platform respectively, and labor and time are saved.

The invention relates to an assembly structure of an electric vehicle wheel hub, comprising a coaxial outer hub 1 and an inner hub 2, spokes are fixed at intervals in the circumferential direction between the outer hub 1 and the inner hub 2, and at the same time, there is a coaxial opening on the inner side of the outer hub 1. The outer slideway 11 is coaxially provided with an inner slideway 21 on the outer side of the inner hub 2, and a slider one 12 is embedded in the outer slideway 11, and a slider two 22 is embedded in the inner slideway 21. A connecting rod assembly 4 is installed between 12 and the second slider 22, the length of the connecting rod assembly 4 can be adjusted in the radial direction of the wheel hub, and a counterweight ring 10 is sleeved on the connecting rod assembly 4, and the counterweight ring 10 is along the The length direction of the connecting rod assembly 4 is slid or fixed, wherein the first slider 12 and the second slider 22 can adopt a block structure, wherein the weight ring can be adjusted around the center of the wheel hub and moved radially, so as to facilitate adjustment and reduce eccentricity force, saving time and manpower.

The invention provides a radial radiation-type rotational filter screen disc and a preparation method thereof. The radial radiation-type rotational filter screen disc comprises an internal rim and an external rim; a radial radiation-type filter screen which is uniformly distributed along the circumference and formed by winding a filter screen wire is arranged between the internal rim and the external rim; two axes center pressing covers are fixedly buckled to the positive surface and the reverse surface of the internal rim; and the center of the axes center pressing cover is provided with a shaft sleeve matched with the output shaft of a motor. The preparation method comprises the following steps of: firstly fixing the front end of the filter screen wire on the internal rim and leading thefront end to attach to the positive surface of the internal rim closely and enwind at the corresponding radial points of the external rim; subsequently leading the front end to closely attach to thereverse surface of the external rim, return in original route and enwind at the adjacent points of the internal rim; rotating the external rim by an angle; subsequently leading the filter screen wireto attach to the positive surface of the internal rim and enwind at another radial corresponding point of the external rim; repeatedly carrying out the above operations till all filter screen wires are uniformly weaved by one ring; and subsequently fixing the tail end of the filter screen wire on the external rim and finally using the two axes center pressing covers to clamp the internal rim fromthe positive surface and the reverse surface. The method has the advantages of good running stability and balance performance, high efficiency of intercepting dust and granules and long service life.

The present invention relates to the technical field of clothes treatment equipment, and specifically provides a vibration damping device for clothes treatment equipment and the clothes treatment equipment, aiming to solve the problem of poor vibration damping effect of the clothes treatment equipment. For this purpose, in the vibration damping device for laundry treating equipment of the present invention, which includes a housing, an outer tub accommodated in the housing, and a driving device, the vibration damping device includes a damping device provided at the bottom of the outer tub. The vibration-sliding seat and the vibration-damping sliding seat are engaged with the housing in a ball-joint manner so as to suppress vibration of the laundry treatment device. The laundry treating apparatus of the present invention includes the above vibration damping device. Under the action of the outer tub and the shell joined by the ball head, the present invention can effectively suppress the large shaking of the outer tub, avoid the collision between the outer tub and the shell, avoid the violent vibration and huge noise of the washing machine, and further improve the user experience.