78results about How to "Reduce the vibration value" patented technology

The invention provides a method for self-lubricating steel balls for a precision bearing by ion-plating a GLC (graphite-like carbon) coating. The method comprises the following steps: ultrasonically cleaning the steel balls to be treated, then washing with deionized water and drying with cold air; placing the dried steel balls in a workpiece disk in a vacuum chamber of magnetron sputtering ion-plating equipment for sputter cleaning; depositing a pure chromium base layer; depositing a transition layer; and depositing a graphitelike working layer. The steel balls treated by the method has the characteristics of strong bearing capacity, high revolving speed, small vibration amplitude and low friction coefficient, thus being applicable to the fields such as aerospace and the like.

An carbamide-base lubricating grease contains hydrogenated mineral oil, plant oil and carbamide-base thickening agent. Its advantages are high thickening power and dripping point, and low vibration and noise of bearing.

The invention discloses a method for manufacturing a novel super-high speed precision ball bearing. The method comprises the following steps: (a) preparing a Cr-N-C gradient compound coating; (b) washing a steel ball sample and drying with cold air; (c) highly vacuumizing by putting the steel ball in a cavity; (d) introducing Ar2, exerting a negative bias after rising of the air pressure, opening a Cr target to promote the current, washing the matrix, and opening a rotary workpiece clamp to rotate the steel ball in a constant speed; (e) reducing the negative bias and the chromium target current; (f) depositing the Cr-N-C gradient compound coating by exerting a negative bias on the matrix, wherein the Cr-N-C gradient compound coating is composed of a Cr bottom layer, a Cr-N transition layer and a Cr-N-C work layer; and (9) closing the Cr target, the C target and the nitrogen, and continuously introducing an argon. By adopting the technical solution provided by the invention, the temperature rise of the precision ball bearing can be greatly reduced, the vibration of the bearing can be reduced and the vibration stationarity can be increased, and then the high speed performance of the precision ball bearing and the reliability of the performance life can be increased and simultaneously the loading ability can be increased.

The invention provides direct-connection power generation equipment for a natural gas radial turbine expansion machine, and belongs to the technical field of power generation of the radial turbine expansion machine. The natural gas radial turbine expansion machine comprises a shape ring, an impeller, a nozzle ring, a volute and a power generator main shaft. The power generator main shaft penetrates through the volute and is rotationally connected with the volute, and a gas inlet and a gas outlet which are in dry gas seal are formed in the side wall of the volute, the shape ring is installed onthe inner wall of the volute, the nozzle ring is arranged on the inner wall of the volute, and the impeller is fixedly installed at the input end of the power generator main shaft through a stay bolt. A high-speed permanent magnet synchronous generator comprises a power generator stator assembly, the power generator main shaft and a power generator shell, the power generator stator assembly is fixedly installed on the power generator shell, and the power generator main shaft is rotationally connected with the power generator shell through a first magnetic suspension bearing and a second magnetic suspension bearing. The volute is fixedly connected with the power generator shell. A speed reduction box device is omitted, the occupied area is small, and the equipment is good in performance, high in unit efficiency and small in loss.

The invention relates to a novel tripartite direct yarn drawing machine for glass fiber. The novel tripartite direct yarn drawing machine comprises a machine body, two machine heads mounted on the machine body are different in mass, and the mass difference mainly concentrates on the front end of each machine head, and the difference of mass values of the two machine heads ranges from 8 kg-15 kg; the two machine heads are a first machine head and a second machine head respectively. The novel tripartite direct yarn drawing machine has the advantages as follows: during high-speed rotation of the machine heads, the resonant frequencies of the two machine heads are not consistent due to mass difference, the two machine heads don't influence each other, and resonance cannot be caused, so that the vibration value is reduced; a balancing weight and end covers are convenient to mount and dismount, the vibration value of the machine heads can be effectively reduced, and the forming quality of a yarn ball is guaranteed.

The invention relates to a hydrodynamic transmission used for a hydrodynamic forklift and provided with a pump mechanism. A lubrication pump transmission shaft is arranged on one side of the upper part of a transmission body, a lubrication pump is arranged at an outward extending end of the lubrication pump transmission shaft, and a first lubrication pump transmission gear is arranged on the lubrication pump transmission shaft; a hollow working pump transmission shaft tube is arranged on the other side of the upper part, a forward gear clutch and a forward gear of a second lubrication pump transmission gear are sequentially fixed on one side of the working pump transmission shaft tube, the forward gear clutch includes a forward gear clutch gear, and an oil supply pump and a hydrodynamic torque converter are arranged on the other side; a working pump transmission shaft is arranged in the working pump transmission shaft tube, and the outer end part of the working pump transmission shaft is connected with a working pump; a backward gear clutch shaft is arranged below the working pump transmission shaft tube, a backward gear clutch and a backward gear are sequentially arranged on the backward gear clutch shaft, and a clutch gear is arranged on a casing of the backward gear clutch; and a transmission shaft is arranged below the lubrication pump transmission shaft, and an output gear is arranged on the transmission shaft. The hydrodynamic transmission has two power output ports, and is provided with the working pump and the lubrication pump at the same time, thereby facilitating an entire vehicle matched wet-type brake drive axle.

The invention relates to a hydrodynamic transmission for a 2-3.5t hydraulic fork truck with a pump mechanism. A lubricating pump transmission shaft is arranged at one side of the upper part of a transmission box, a lubricating pump is arranged at the extended end of the lubricating pump transmission shaft, and a lubricating pump transmission gear A is arranged on the lubricating pump transmissionshaft; a hollow working pump transmission shaft tube is arranged at the other side of the upper part of the transmission box, a forward clutch of a lubricating pump transmission gear B and a forward gear are sequentially and fixedly arranged at one side of the working pump transmission shaft tube, the forward clutch comprises a forward clutch shell gear, and an oil supply pump and a hydraulic torque converter are arranged at the other side of the working pump transmission shaft tube; a working pump transmission shaft is positioned in the working pump transmission shaft tube, and the external end of the working pump transmission shaft is connected with a working pump; a backward clutch shaft is arranged below the working pump transmission shaft tube, a backward clutch and a backward gear are sequentially arranged on the backward clutch shaft, and a clutch shell gear is arranged on a backward clutch shell; and a transmission shaft is arranged below the lubricating pump transmission shaft, and an output gear is arranged on the transmission shaft. The hydrodynamic transmission is provided with two power output ports, and the working pump and the lubricating pump are simultaneously driven, so that a wet braking drive axle can be conveniently selected for a whole vehicle.

The invention discloses a cambered surface part polishing device. The cambered surface part polishing device comprises a base, wherein the middle part of the base is provided with a cambered surface supporting plate for placing a cambered surface part, the polishing head for polishing the cambered surface part is arranged above the cambered surface supporting plate, the polishing head moves on anaxis Z, an axis X and an axis Y through a first sliding mechanism, a second sliding mechanism and a third sliding mechanism correspondingly, the cambered surface supporting plate rotates around the axis Y and the axis Z correspondingly through a first driving mechanism and a second driving mechanism to determine the position, and the polishing head is used for polishing the cambered surface part through a third driving mechanism. According to the cambered surface part polishing device, the position of the cambered surface supporting plate is adjusted by driving of a motor, the structure is compact, and the vibration value is small; and the position of the polishing head is adjusted by a mechanical structure, the structure is simple, the reliability is high, and the control precision is high.

The invention relates to an energy-saving agent special for a spindle motor of a textile machine and a preparation method thereof. The energy-saving agent comprise manometer diamond powder, base oil, diamond powder pulvis, copper anti-blushing agent, cleaning dispersing agent and polyving akohol solution, etc. The preparation method comprises the steps of: mixing the manometer diamond powder, thediamond powder pulvis with the polyving akohol solution; evenly dispersing in a stirring way with a certain rotation speed at the temperature of 45-60 DEG C for later use; raising the temperature of the base oil to the temperature of 80 DEG C and adjusting into solution; putting in to a regulating container; adding the copper anti-blushing agent and the cleaning dispersing agent; evenly stirring;and adding the mixture, and stirring for 1-2h. The product has good mechanical stability, chemical stability and colloform stability; has good thermal endurance and high dropping point; has good wear-resistance, extreme pressure performance, oxidation resistance and anti-rusting performance; has long service life under high temperature and good low-temperature starting performance; has obvious effects for saving oil and energy; can further repair the friction surface to a certain degree; and reduces the noise and the vibration amplitude caused by the rolling of a bearing.

The invention provides a rigidity-adjustable compressor damping foot pad, a compressor and a control method. The rigidity-adjustable compressor damping foot pad comprises a compressor damping foot pad body, wherein a mounting cavity is formed in the compressor damping foot pad body, a mounting groove is formed in the peripheral wall of the compressor damping foot pad body, and a first supporting wall is formed in the position, between the mounting groove and the mounting cavity, of the compressor damping foot pad body; and a rigidity adjusting device which comprises a first supporting plate, wherein the first supporting plate is arranged in the mounting cavity of the compressor damping foot pad body and abuts against the supporting wall so as to provide supporting force for the first supporting wall. The rigidity adjusting device can adjust the supporting force provided by the first supporting plate to the first supporting wall. The rigidity of the compressor damping foot pad can be adjusted according to the vibration characteristics of a compressor, a good damping effect can be achieved in the full frequency band of the compressor, the problem that a common compressor damping foot pad lacks horizontal vibration control is solved, and then abnormal sound of an outdoor unit and the vibration value of a pipeline are reduced.

The invention discloses a miniature bearing plastic retainer. The miniature bearing plastic retainer is characterized in that each pocket of the miniature bearing plastic retainer is designed in a three-section mode in the radial direction of a retainer body, the middle section of the miniature bearing plastic retainer is a cylindrical hole, the inner section and the outer section of the miniaturebearing plastic retainer are each in a cone shape with a large outside and small inside in the radial direction of the retainer body, and the cone angle of the inner section is larger than that of the outer section. Due to the fact that the inlet and the outlet of each pocket are conical, when the bearing rotates at a high speed, lubricating grease can be easily contained at the bottom close to the inner diameter end of each pocket and can easily enter the pocket, and the lubricating effect between steel balls and the pockets of the retainer is enhanced; the cone angle of the inner section isgreater than that of the outer section so that lubricating grease can be easily retained at the port of the outer section when flowing out of the pocket, and can be quickly sprayed to an outer raceway under the action of quick rotation of the steel balls and centrifugal force, thereby the contact lubricating effect between the outer raceway and the steel balls can be improved; and the designed oil groove is beneficial to oil storage and lubrication between the steel balls and the retainer when the bearing rotates at a high speed, friction and temperature rise are reduced, deformation of a locking jaw is reduced, normal guiding of the steel balls is guaranteed, and the service life of the bearing is prolonged.

The invention relates to an electric spindle adopting double supports of an electromagnetic bearing and an angular contact ball bearing. An axial magnetic bearing (3) is arranged on the spindle in anelectric spindle shell (4), and radial magnetic bearings (2) are symmetrically arranged on the two sides of the axial magnetic bearing (3). The rigidity of the magnetic suspension bearing at a balanceposition is improved by using the electric spindle structure supported by the electromagnetic bearing and the angular contact ceramic ball bearing so that the magnetic suspension bearing is no longerlimited by the current rigidity.