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71 results about "Belt friction" patented technology

Belt friction is a term describing the friction forces between a belt and a surface, such as a belt wrapped around a bollard. When one end of the belt is being pulled only part of this force is transmitted to the other end wrapped about a surface. The friction force increases with the amount of wrap about a surface and makes it so the tension in the belt can be different at both ends of the belt. Belt friction can be modeled by the Belt friction equation.

Device and method for controlling a belt-type continuously variable transmission for a vehicle

Disclosed is a continuously variable transmission that expands the operating range over which belt-slip control is allowed, while maintaining the estimated precision of the belt-slip state. This reduces belt friction, thereby reducing the drive energy used. A belt (44) is wrapped around a primary pulley (42) and a secondary pulley (43), and the gear ratio is controlled by controlling a primary hydraulic pressure and a secondary hydraulic pressure. The disclosed belt-type continuously variable transmission for a vehicle is provided with a belt-slip control means (fig. 8) and a gear-ratio change-rate limitation means (step S23 in fig. 12). When a gear-ratio change rate is less than a given value, said gear-ratio change rate being the rate at which the gear ratio changes, the belt-slip control means controls the secondary hydraulic pressure on the basis of a phase difference ( ) between a vibration component due to oscillation in the actual gear ratio and a vibration component due to oscillation in the actual secondary hydraulic pressure. The gear-ratio change-rate limitation means uses prescribed acceleration limitation allowance conditions to determine whether or not the acceleration of the vehicle may be limited (steps S21, S22, and S26 in fig. 12), and if so, limits the gear-ratio change rate to less than the aforementioned given value.
Owner:NISSAN MOTOR CO LTD +1

Fully-automatic mechanical insulin injection pump

The invention discloses a fully-automatic mechanical insulin injection pump, which comprises a reformed mechanism of a mechanical watch, a continuously variable transmission of a belt friction wheel, an adjusting cam device of technical scheme, a gear rack precise injection and transmission mechanism, a dosage injection mechanism before meal, a medicine feeding system and the like. On the one hand, the output shaft of the mechanism drives the adjusting cam device of the technical scheme to further drive the continuously variable transmission of the belt friction wheel and the gear rack precise injection and transmission mechanism and finally drives the medicine feeding system to perform micro-injection of basic amount. On the other hand, a driven push rod on the cam device pushes a transmission belt on the continuously variable transmission of the belt friction wheel to change the axial position of the friction wheel so as to adjust the transmission ratio of the continuously variable transmission of the belt friction wheel. The fully-automatic mechanical insulin injection pump driven by fully-automatic mechanical way is environmentally friendly, safe and reliable, and can reduce the use cost. Therefore, the invention can vigorously accelerate the treatment effect of diabetes patients, alleviate the economic and spiritual pressure, improve the life quality and obtain good economic and social benefits.
Owner:HUAIHAI INST OF TECH

Underground coal mine fully mechanized coal mining face high-voltage cable no-twisting rolling device

The invention discloses an underground coal mine fully mechanized coal mining face high-voltage cable no-twisting rolling device, and belongs to the field of mine machinery. The underground coal minefully mechanized coal mining face high-voltage cable no-twisting rolling device comprises a low-speed hydraulic motor driving device, a cable conveying device, a 8-shaped device, a frame and the like;and the low-speed hydraulic motor driving device is positioned below the frame, and provides power to the 8-shaped device. The cable conveying device is positioned above the frame, and comprises a cable pressing mechanism, a flat belt friction conveying mechanism and a support roller; and the cable conveying device drags redundant cables on a working surface to convey the cables for the rolling operation of the 8-shaped device. The 8-shaped device is positioned at the middle part of the frame, and comprises a transmission gear set, a longitudinal moving crank slide block mechanism, a transverse moving crank slide block mechanism and a guide sliding mechanism; large and small gears in the transmission gear set provide power to the two sets of crank slide block mechanisms; and when relativeinitial mounting positions of two crankshafts are determined, a rotating speed ratio of the two crankshafts is 1: 2, a cable rolling rod synchronously moves in the longitudinal and transverse directions, and the tail end of the wire rolling rod moves in a similarly 8-shaped trajectory. Through use of the 8-shaped cable winding method, the torsion of the cables in the rolling process can be reduced, and the torsion margin in the cable rolling process after rolling can be effectively counteracted. The device is convenient to operate, and can solve the problems of time and labor wastes in traditional manual cable rolling operation, cable damage and difficult guarantee of the rolling quality in an underground coal mine fully mechanized coal mining face.
Owner:HENAN POLYTECHNIC UNIV

Open width sand washing machine

The invention relates to an open width sand washing machine. The open width sand washing machine comprises a sand washing addition agent container. A plurality of rows of conveying roller sets with belt friction rollers which are sequentially arrayed to the textile fabric output direction from the textile fabric input direction are arranged above the sand washing addition agent container. High-pressure spray pipes with nozzles are arranged on one side or the two sides of the conveying roller sets with the belt friction rollers, and the input ends of the high-pressure spray pipes are connected with the sand washing addition agent container or a sand washing addition agent storage mechanism through a pump. Each conveying roller set with the belt friction rollers comprises an input roller allowing textile fabric to be input, an output roller allowing the textile fabric to be output, a revolution roller allowing the textile fabric to be turned to the output direction from the input direction and at least one friction roller. Each fiction roller is provided with a friction part which allows the textile fabric to pass through in the input direction and the output direction at the same time and generates friction. The open width sand washing machine has the advantages of being large in sand washing quantity, good in sand washing effect, capable of saving energy, environmentally friendly, low in labor cost, beneficial to achieving large-scale assembly line production of the textile fabric, and the like.
Owner:王佳茹

Straightening machine and belt friction driving device thereof

ActiveCN107377678APrevent slidingAvoid Feedback Angle ErrorsMetal working apparatusEngineeringFriction force
The invention discloses a belt friction driving device used for a shaft straightening machine. Friction force generated through contact of a belt and a workpiece drives the workpiece to rotate. Compared with a traditional rolling wheel driving device, the belt friction driving device overcomes shortages of traditional driving. According to the belt friction driving device, all functions of the traditional rolling wheel driving device can be achieved, and meanwhile, the shortages of the traditional rolling wheel driving device are overcome fully. The belt friction driving device has the advantages that belt friction driving is adopted, the friction contact area and the friction coefficient are increased, relative sliding between the driving belt and the workpiece is avoided, meanwhile, a feedback angle error of an angle sensor caused by relative sliding between the driving belt and the workpiece is avoided, and the straightening efficiency is improved. The belt friction driving device mainly applied to workpiece rotating driving with an outer circle as benchmark and widely applied to straightening driving of a motor torsion bar, and a robot drive straightening driving of a motor transmission screw bar. The invention further discloses a straightening machine which applies the belt friction driving device.
Owner:CHANGCHUN HUIKAI TECH +1

Belt driving device, friction testing and aligning device of belt friction test machine

The invention discloses a belt driving, friction testing and aligning device of a belt friction testing machine. The belt driving, friction testing and aligning device comprises a belt driving device, a belt friction testing device and a belt friction test aligning device which are fixedly mounted with a working table, wherein the belt driving device comprises a movable belt driving device and a fixed belt driving device, the fixed belt driving device is fixed with the working table and is provided with a fixed belt driving swing rod, and the movable belt driving device is arranged at a movable end of the fixed belt driving swing rod; the belt friction testing device and the belt friction test aligning device are fixedly mounted with the working table, a friction testing head of the belt friction testing device is propped against a belt, and an aligning head of the belt friction test aligning device is vertically arranged above the belt friction testing device. The belt driving, friction testing and aligning device can perform different tests according to different belts, adjust the tension of the belt automatically, test the friction of the belt automatically and guarantee the stability of a belt friction test result; the mechanism structure is reasonable, the operation is convenient, the working efficiency is improved greatly, and manpower and cost are saved.
Owner:SUZHOU CHANG FEI AUTOMATION EQUIP FACTORY

Conveying device

The invention discloses a conveying device. The conveying device comprises a carrier, a guide rail, a belt, a power mechanism and a positioning mechanism. The carrier is composed of a carrying table, a sliding block, a limiting assembly and a pressing plate assembly and arranged on the guide rail in a sliding mode through the sliding block. The pressing plate assembly abuts against the belt, and friction force between the pressing plate assembly and the belt is larger than that between the sliding block and the guide rail. The carrier is in a suspended state or a moving state under the action of the positioning mechanism. The conveying device has the advantages that the guide rail plays a role in supporting, so that loads on the belt are reduced; meanwhile, the friction force between a pressing block and the belt is larger than that between the sliding block and the guide rail, so that conveying is convenient and flexible, and the structure is ingenious; the positioning mechanism is provided with a stopping part and a positioning part, the stopping part performs stopping, and then the positioning part performs accurate positioning, so that the suspending position of the carrier is more accurate through secondary positioning; the guide rail and the belt are in a cyclic ring shape, so that cyclic conveying is achieved; just one guide rail and one belt are needed, so that the conveying device is simple in structure, small in occupied space and low in cost.
Owner:IXMATION SUZHOU CO LTD

Driving device used for new energy car motor rotor balancing machine

PendingCN109505934ARealize self-adaptive rotation drive adjustmentIncrease frictionGearingStatic/dynamic balance measurementBalancing machineNew energy
The invention discloses a driving device used for a new energy car motor rotor balancing machine. A driving mechanism base is a vertical plate, an arc gap is formed in the upper portion of the drivingmechanism base, the position, on the arc gap, of the motor rotor balancing machine is horizontally supported and mounted through a supporting frame, a belt pressing-down assembly is movably connectedwith and mounted on the position between two sides of the upper portion of the driving mechanism base and crosses over the arc gap, a power assembly and a transmission assembly are arranged on the bottom of the driving mechanism base, the power assembly is connected with the transmission assembly, a driving arm clamping assembly and a belt tensioning assembly are arranged on the periphery of thearc gap, the transmission assembly, the belt pressing-down assembly and the belt tensioning assembly are connected through a belt, and the belt is pressed on a rotor. A wrap angle is increased, when arotor rotates, the large belt friction force can be obtained, slippage is avoided, the air inlet pressure of an air cylinder can be adjusted, the tensioning force of the belt can be adjusted, the belt can be compatible with a rotor with the large outer diameter range, and belts with different lengths do not need to be replaced.
Owner:杭州集智机电股份有限公司

Sorting devices for logistics sorting machine

The invention relates to logistics sorting equipment, in particular to sorting devices for a logistics sorting machine. Each of the sorting device comprises a tiltable belt transmission mechanism, anoblique wedge mechanism, a box body, a friction wheel power mechanism and a main frame, wherein the corresponding friction wheel power mechanism is mounted on the box body and comprises a power mechanism and belt friction wheels; the belt friction wheels are driven by the power mechanism so as to be rotated; the power mechanism is driven by a driving device, a plurality of sorting devices are driven by one driving device; the corresponding box body is mounted on the corresponding main frame, and is driven by the corresponding power mechanism to be moved along the main frame; the correspondingtiltable belt transmission mechanism is hinged with the corresponding box body; the corresponding oblique wedge mechanism is fixedly connected with one end of the corresponding tiltable belt transmission mechanism; the corresponding tiltable belt transmission mechanism is driven by the corresponding oblique wedge mechanism to be inclined at 1 degree to 60 degrees; after inclination is carried out,the other end of the corresponding tiltable belt transmission mechanism is in contact with the belt friction wheels; and belts are driven by the belt friction wheels to be rotated. The sorting devices for the logistics sorting machine has the advantages of energy conservation and cost reduction, and can sort over-thin and excessive small objects and can effectively prevent easily damaged parts.
Owner:辽宁黑北健科技有限公司

Belt tension adjusting device of belt friction force testing machine

The invention discloses a belt tension adjusting device of a belt friction force testing machine. The belt tension adjusting device comprises two belt tension adjusting supporting plates fixed to a belt driving fixing swing rod, a belt tension adjusting fixing plate is installed on the two belt tension adjusting supporting plates, parallel belt tension adjusting sliding rails are arranged on the belt tension adjusting fixing plate and provided with belt tension adjusting sliding blocks, the belt tension adjusting sliding blocks are provided with a belt tension adjusting transferring plate, a belt tension adjusting motor is fixedly installed on the lower end face of the belt tension adjusting fixing plate, the output shaft of the belt tension adjusting motor is connected with a belt tension adjusting moving plate, and the upper end face of the belt tension adjusting moving plate is fixedly connected with the lower end face of the belt tension adjusting transferring plate. By means of the belt tension adjusting device, different tests can be carried out according to different belts, the tension of the belts is automatically adjusted, the friction force of the belts is automatically adjusted, the stability of the friction testing result of the belts is ensured, the mechanism structure is reasonable, operation is convenient, the working efficiency is greatly improved, and manpower and cost are saved.
Owner:SUZHOU CHANG FEI AUTOMATION EQUIP FACTORY

Belt friction force testing machine

The invention provides a belt friction force testing machine comprising a case and a controller installed on the case. A working table top is installed on the case. The testing machine also comprises a belt driving device, a belt driving deflection-preventing device, a belt tension adjusting device, a belt friction testing device, a belt deflection-preventing device, and a belt friction testing positioning device. The belt driving device comprises a belt moving driving device and a belt fixed driving device, wherein the belt fixed driving device is fixed to the working table top and is provided with a belt fixed driving swing rod; the moving end of the belt fixed driving swing rod is provided with the belt driving deflection-preventing device; the upper end surface of the belt fixed driving swing rod is provided with the belt tension adjusting device. The belt friction force testing machine can be used for conducting different tests for different belts, can automatically adjust the tension of belts and testing the friction force of the belts, and can guarantee the stability of the results of the belt friction tests. The belt friction force testing machine is reasonable in structure and convenient to operate, increases the working efficiency greatly and saves the manpower and cost.
Owner:SUZHOU CHANG FEI AUTOMATION EQUIP FACTORY

Stranding machine traction stepped wheel device

The invention relates to a stranding machine traction stepped wheel device. A first traction stepped wheel, a second traction stepped wheel, a traction stepped wheel tension friction supporting plate, a traction stepped wheel friction mirror surface, a second traction stepped wheel tension friction plate fixing plate, a traction stepped wheel tension pressing plate, a traction stepped wheel spring weight and a traction stepped wheel tension nut are sequentially installed on a traction stepped wheel shaft. A first traction stepped wheel tension friction plate fixing plate is arranged on the traction stepped wheel tension friction supporting plate. A traction stepped wheel friction damping fin is fixed to the first traction stepped wheel tension friction plate fixing plate. The traction stepped wheel friction mirror surface is arranged in a traction stepped wheel tension friction supporting plate key groove. On the stepped wheel friction mirror surface, compression springs sequentially arranged on the traction stepped wheel spring weight are pressed on the traction stepped wheel tension pressing plate. During operation, the traction stepped wheel shaft is driven by a speed reducer to rotate; when a steel wire generates tension when wound around the first traction stepped wheel and the second traction stepped wheel, the stretching and retracting space of the compression springs is decreased by the traction stepped wheel spring weight by adjusting the tightness degree of the traction stepped wheel tension nut so that tension can be adjusted.
Owner:HUBEI FUXING NEW MATERIAL TECH +6

Straightening machine and its drive device with friction

ActiveCN107377678BPrevent slidingAvoid Feedback Angle ErrorsMetal working apparatusElectric machineryEngineering
The invention discloses a belt friction driving device used for a shaft straightening machine. Friction force generated through contact of a belt and a workpiece drives the workpiece to rotate. Compared with a traditional rolling wheel driving device, the belt friction driving device overcomes shortages of traditional driving. According to the belt friction driving device, all functions of the traditional rolling wheel driving device can be achieved, and meanwhile, the shortages of the traditional rolling wheel driving device are overcome fully. The belt friction driving device has the advantages that belt friction driving is adopted, the friction contact area and the friction coefficient are increased, relative sliding between the driving belt and the workpiece is avoided, meanwhile, a feedback angle error of an angle sensor caused by relative sliding between the driving belt and the workpiece is avoided, and the straightening efficiency is improved. The belt friction driving device mainly applied to workpiece rotating driving with an outer circle as benchmark and widely applied to straightening driving of a motor torsion bar, and a robot drive straightening driving of a motor transmission screw bar. The invention further discloses a straightening machine which applies the belt friction driving device.
Owner:CHANGCHUN HUIKAI TECH +1
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