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83results about How to "Avoid friction noise" patented technology

Valve element grinding equipment

The invention relates to valve element grinding equipment. The valve element grinding equipment comprises a wedge-shaped block and a fixing plate. A first magnet is arranged on the fixing plate. A first connecting rod is fixedly connected with the fixing plate. An L-shaped rod is fixedly connected with the other end of the first connecting rod. A penetrating through hole is formed in the L-shapedrod. A first supporting rod is slidably connected into the through hole. One end of the first supporting rod penetrates through the through hole and is connected with a roller. The roller abuts against the wedge-shaped block. A supporting spring is arranged on the first supporting rod in a sleeving mode. A grinding roller is fixedly connected with the other end of the first supporting rod. A driving shaft is arranged under the grinding roller. A driving plate is fixedly connected with the driving shaft coaxially. A driving rod is rotationally connected with the eccentric position of the driving plate. A first connecting rod is connected with the other end of the driving rod. A first bevel gear is fixedly connected with the driving shaft coaxially and is a sector gear. A transfer plate is arranged under the fixing plate. A vertical shaft is fixedly connected with the transfer plate and coaxially and fixedly connected with a second bevel engaged with the first bevel gear. The grinding time of the equipment is uniform.
Owner:CHONGQING QIANYAN MACHINERY CO LTD

Vehicular door-hinge device with checker

InactiveCN101553638ALoss of lock functionImprove reliabilityWing accessoriesHingesDetentEngineering
Provided is a vehicular door-hinge device with a checker, which comprises an inner cylinder (6) to be jointed to a female bracket (1), an outer cylinder (7) to be jointed to a female bracket (2), and a check force generating mechanism (20) interposed between the two cylinders (6 and 7). The mechanism (20) is constituted of a plurality of holding members (22) attached to the outer cylinder (7) and arrayed in the circumferential direction of the same, and a plurality of elastic members (23) for biasing those holding members (22) individually toward the inner cylinder (6). Each of the holding members (22) is equipped with a detent projection (26) for abutting against the outer circumference of the inner cylinder (6). The inner cylinder (6) is equipped, in its outer circumference, with a plurality of detent grooves (27), into and out of which the engagements of the detent projections (26) are made according to the relative rotations of the inner cylinder (6) and the outer cylinder (7). The pressure receiving areas of the holding members (22) for receiving the pressures from the elastic members (23) are set larger than the abutting areas of the detent projections (26) and the detent grooves (27). As a result, the vehicular door-hinge device does not lose the checking function, even if the check force generating mechanism is partially troubled, but is high in durability.
Owner:RIKEN KAKI KOGYO CO LTD

Air duct assembly and air conditioner

The invention provides an air duct assembly and an air conditioner. The air duct assembly comprises a bottom shell, a motor and a fan blade assembly. The fan blade assembly is mounted on the bottom shell and comprises a fan blade shaft and cross-flow fan blades arranged on the fan blade shaft in a sleeving mode. The fan blade shaft extends in the length direction of the bottom shell. The end, close to the motor, of the fan blade shaft is supported on the bottom shell in a suspended mode through a magnetic suspension mechanism. The end, away from the motor, of the fan blade shaft is supported on the bottom shell through a bearing seat. According to the air duct assembly, the magnetic suspension mechanism is designed at the end, close to the motor, of the fan blade assembly, and the fan blade shaft, close to one end of the motor, of the fan blade assembly is in a suspended state through the action of the magnetic suspension mechanism; and in this way, the functions that the fan blade assembly is supported, and it is ensured that the fan blade shaft and a motor output shaft are always in an aligned state are achieved, and friction abnormal sound brought by matching of supporting partsand the fan blade shaft is also overcome.
Owner:GREE ELECTRIC APPLIANCES INC

Spiral spring

A spiral (coiled) spring used for a vehicle and more particularly for a reclining adjusting mechanism for a vehicle seat. The spiral spring which is a spring plate member constructed from a band-like steel plate having high hardness has ridges formed on opposite ends in the coiling direction of the spring plate member so that the ridges project from the surfaces of the spring plate member and that the surfaces of the projected ridges are curved. The spring plate member has an outer end section, an intermediate section extending from the outer end section, and an inner end section extending from the intermediate section, and the spring plate member has a pitch coiled structure. In the pitch coiled structure, an engagement section bent in the radial direction is formed at the end of the outer end section, an engagement coiled core section is formed on the inner end section, and a gap between the intermediate section and the inner end section is set smaller than a gap between the outer end section and the intermediate section. The spiral spring reliably achieves both winding of the spiral spring (backrest is smoothly tilted to a rear position) and restoration of the spring to the original state (the backrest is smoothly returned to a forward position), which are characteristics of spiral springs. Also, abrasion, catching, and frictional noise at the time of contact can be avoided. Further, metal fatigue of the spiral spring can be reduced.
Owner:日本泰克尼卡株式会社

Shallow bottom pit steel belt traction home lift

The invention discloses a shallow bottom pit steel belt traction home lift. The shallow bottom pit steel belt traction home lift comprises a steel frame, and a lift car and a counterweight device arearranged in the steel frame; a first bracket and a second bracket are arranged at the top end of the steel frame, a traction machine, a first rope hitch and an anti-bouncer are arranged on the first bracket, and a second rope hitch is arranged on the second bracket; a steel belt is arranged on the first rope hitch and comprises two rows of steel wire rope groups which are arranged in a spaced mode, an elastic rubber layer and a polyurethane layer are sequentially arranged outside each steel wire rope group, and the outer side face of each polyurethane layer is provided with skidproof stripes;and one end of the steel belt is fixedly connected with the first rope hitch, and the other end of the steel belt sequentially winds around a counterweight wheel of the counterweight device, tractionwheels of the traction machine, the anti-bouncer and car bottom wheels arranged at the bottom of the lift car and then is fixedly connected with the second rope hitch. The shallow bottom pit steel belt traction home lift has the characteristics that the later-period maintenance cost is low, a shaft can not be contaminated, a traction rope is high in strength, good in durability and long in servicelife, and the lift riding comfortability is good.
Owner:SICHER ELEVATOR

High Tension Coil Spring Structure for Bed Mattress Having Means for Preventing Friction Noise

A high tension coil spring structure for a bed mattress includes spring bodies and exposed wiring portions which absorb an external load. Diameter-increasing portions (A) are formed on at least one of upper and / or lower end wiring portions (14, 14') of body wiring portions (12), and provide spaces in which upper and / or lower exposure start wiring portions (16-5, 16-5') move upward and downward. Rigid support ends (18) are formed on at least one of the body wiring portions (12) and upper and lower exposed wiring portions (16, 16'), and absorb a compressive load. The diameter-increasing portions and the rigid ends of the coil spring structure fundamentally prevent noise caused by friction between the exposed wiring portions and surrounding wiring portions when the exposed wiring portions are compressed and significantly increase the elasticity of the exposed wiring portions.
Owner:ACE BED CO LTD

Bimetal composite radiator capable of reducing friction abnormal sound and preparation method thereof

The invention discloses a bimetal composite radiator capable of reducing friction abnormal sound and a preparation method thereof. The preparation method comprises the following steps of: coating the outer part of a low-carbon steel pipe with a layer of coating, and then drying the coating; penetrating the steel pipe with the coating into an aluminum profile for the bimetal composite radiator, and carrying out shrinkage pipe interference magnitude compounding on an aluminum pipe in the aluminum profile for the bimetal composite radiator and the low-carbon steel pipe inserted into the aluminum pipe, so that the low-carbon steel pipe and the aluminum pipe are tightly combined to obtain a bimetal composite pipe; and welding the bimetal composite pipe into a radiator, and carrying out secondary drying on the radiator to obtain the bimetal composite pipe, and welding the bimetal composite pipe into the radiator. The aluminum profile for the bimetal composite radiator comprises the aluminum pipe; and the opening ends of the aluminum pipe are respectively provided with a telescopic angle, and the diameter of the bulge of each telescopic angle is 2.8 + / - 0.1mm. The bimetal composite radiator prepared by the method can effectively solve the friction abnormal sound generated by thermal expansion and cold contraction between the low-carbon steel pipe and the aluminum pipe, and a quiet and comfortable use environment is provided for a user.
Owner:SHANDONG XINHUAXING HVAC TECH

Method for improving tear resistance and torsion performance of plate spring bushing and plate spring bushing

The invention relates to a method for improving the tear resistance and the torsion performance of a plate spring bushing and the plate spring bushing. The plate spring bushing integrally vulcanized by rubber and metal is adopted, the inner surface of a rubber elastomer of a vulcanized body is compounded on a self-lubricating sleeve, and then the self-lubricating sleeve is pressed on an inner sleeve; and meanwhile, an outer tile cover of the vulcanized body is divided into two sectioning trapezoidal seam allowance matched structures, and pressing rings are arranged at the two ends of the outer tile cover, are assembled on the inner sleeve in an interference fit manner and are inserted into a cavity of the vulcanized body. According to the method for improving the tear resistance and the torsion performance of the plate spring bushing and the plate spring bushing provided by the invention, axial movement and radial deformation limiting of the rubber elastomer are achieved by controlling the relative positions of the pressing rings at the two ends and two sectioning trapezoid seam allowances of the outer tile cover, so that the installation contact area is increased, and the bolt pre-tightening force is improved; and the self-lubricating bush is provided with a lubricating and abrasion-resistant coating, so that rubber layer abrasion and metal friction abnormal sound during torsion are avoided, and the pre-tightening force of a bolt is improved to improve the tear resistance and the torsion performance of rubber of the plate spring bushing.
Owner:BOGE RUBBER&PLASTICS ZHUZHOU CO LTD
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