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30results about How to "Change speed ratio" patented technology

Method and device for automatic spinning repiece

The present invention relates to an automatic spinning new end forming method and its equipment. The roving machine utilizes the coder positioned at the drafting portion position to detect the full-yarn length when the bobbin can be fulled, and makes the roving machine spin to a certain length in low speed, after the roving is spun to a certain length, makes the roving machine operate in low speed, at the moment makes the spindle rail stop lifting movement and makes the yarn be in said height position, winds 2-3 turns of halching and makes the spindle rail be quickly lowered to form large thread pitch wind so as to make the roving do not take-off in its transportation process; changes the speed ratio of flywer and roller so as to reduce roving twist, and obtain undertwisted roving, and when the ultralowering of spindle rail is made to place, the yarn is stretch-broken to produce fuzzy fibre whose length can be suitable for secondary automatic spinning new end formation.
Owner:TIANJIN HONGDA TEXTILE MACHINERY

Production device of fiber color points and spinning method of color point yarns

The invention provides a production device of fiber color points and a spinning method of color point yarns, and improves the common cotton spinning machinery, i.e. adding a cotton feeding system on various carding machines, simultaneously being dispensed with a cotton stripping device, installing a stripping and conveying device, configuring all the technological parameters (e.g. transmission rate, cutting die, doffer space and the like) of the carding machines, and being reformed into a device capable of producing various fiber color points. The spinning method utilizes the production device, selects the kind and the dosage of an adhesive suitable for the fiber to produce color points with different size specifications, different tightness and extensive color change according to different fiber types during the production process of the color points.
Owner:广东广纺检测技术股份有限公司

Multi-functional integrated type hydraulic cylinder

The invention discloses a multi-functional integrated type hydraulic cylinder. The multi-functional integrated type hydraulic cylinder comprises a main cylinder barrel, a main cylinder cover, a barrel-shaped main cylinder piston rod, a rapid cylinder guide sleeve, an isolating ring, a three-section card key and a main cylinder guide sleeve and is characterized in that: a first oil port, a second oil port and a third oil port are formed on the main cylinder barrel; a fourth oil port and a sixth oil port are formed on the main cylinder cover; a positioning cylinder guide sleeve is matched with the inner wall of the left end part of the main cylinder barrel; the inner wall of the positioning cylinder guide sleeve is matched with the outer wall of the main cylinder guide sleeve; the left end part of a barrel-shaped rapid cylinder piston rod is matched with the inner wall of the barrel-shaped main cylinder piston rod; the right end of the barrel-shaped rapid cylinder piston rod is connected with a locknut in a matching way; a rapid cylinder head is connected with the inner wall of the left end part of the barrel-shaped main cylinder piston rod in a matching way; a low-pressure oil inlet pipe is fixedly connected in the barrel-shaped rapid cylinder piston rod; and the right end of the low-pressure oil inlet pipe is a fifth oil port. The multi-functional integrated type hydraulic cylinder has the advantages of compact structure, high circulating operation speed, high working pressure, large thrust force of a working condition, high power density and convenient installation.
Owner:泸州众大科技液压件有限公司

Lathe sliding box

The invention relates to a lathe sliding box; a transverse knife feeding gear and a longitudinal knife feeding gear are installed on front and rear sides of a middle gear on a wheel shaft; the middle gear, the transverse knife feeding gear and the longitudinal knife feeding gear are respectively engaged with an annular gear; a control handle shaft is parallel to the wheel shaft; a handle capable of driving the control handle shaft to rotate or slide forwards and backwards is installed on the control handle shaft; the annular gear is rotationally connected to one end of a sliding link rod, and the middle part of the sliding link rod is installed on a sliding link rod shaft that is parallel to the control handle shaft; a sliding link rod driving plate is fixedly installed on the control handle shaft and provided with a sliding link rod slot extending along the circumference, and the other end of the sliding link rod is inserted into the sliding link rod slot. A concave arc cam is installed on the control handle shaft, the rear end face of the concave arc cam is provided with a concave arc groove in which a link rod pin is inserted, and the outer end of the link rod pin is hinged to the upper end of a half nuts control link rod. According to the sliding box, interlocking of the transverse knife feeding gear, the longitudinal knife feeding gear and the half nuts is achieved by the control handle.
Owner:YANGZHOU SUPER MASCH TOOL CO LTD

Planetary reduction stepless variable speed coupling box of new energy automobile

The invention relates to a planetary reduction stepless variable speed coupling box of a new energy automobile. The planetary reduction stepless variable speed coupling box comprises a main drive loop formed by motors, planetary reduction mechanisms and a differential mechanism, wherein the motors are connected with sun wheels of the planetary reduction mechanisms through rotor frames to be used as power input, and planet carriers of the planetary reduction mechanisms are connected with the differential mechanism to be used as power output drive wheels. The planetary reduction stepless variable speed coupling box of the new energy automobile further comprises an auxiliary drive device for driving inner gear rings of the planetary reduction mechanisms to rotate. Compared with the prior art, the main drive loop can carry out gear switching of different speed ratios on a planet gearbox according to the working conditions of the inner gear rings, and therefore the whole gear shifting process is continuous, stable and free of impact force, so that stepless variable speed of the automobile in climbing, heavy-load starting, common-load driving at the moderate speed and light-load driving at high speed can be achieved.
Owner:廉廉机电科技发展(上海)有限公司

Magnetic transmission

A magnetic transmission is provided with an inner rotor (1), an outer rotor (2), and a magnetic field-modulating stator (3) disposed coaxially between the inner rotor (1) and the outer rotor (2). Theinner rotor (1) is provided with a first magnet row (11) and a second magnet row (12) that are disposed in parallel in the direction of the central axis (A) and disposed at different pitches along thecircumferential direction. The outer rotor (2) is provided with a magnet row that is disposed along the circumferential direction. The magnetic field-modulating stator (3) is provided with a first magnetic body row (31) and a second magnetic body row (32) that oppose the first magnet row (11) and the second magnet row (12), respectively. Moreover, by moving the inner rotor (1) and the magnetic field-modulating stator (3) in the direction of the central axis (A) while maintaining the opposing relationship between the first magnetic body row (31) and the second magnetic body row (32) and the first magnet row (11) and the second magnet row (12), the position of opposition between the outer rotor (2) and the first magnet row (11) and second magnet row (12) is varied continuously.
Owner:HITACHI METALS LTD

Stepless speed change structure for planetary gears

The invention discloses a stepless speed change structure for planetary gears, which has the advantages of high torque bearing capability, no slipping, simple structure, less parts, low manufacture and maintenance costs, superior long service life and wide speed change range, and can be applied to heavy-duty vehicles, large-scale vehicles and mini-type vehicles. Based on the structural characteristics of the planetary gears, the stepless speed change of power input and output speeds is realized when the revolution ratio between a gear ring and a sun gear is changed by changing the rotational speed of a planetary gear rack. The stepless speed change structure comprises the gear ring, the planetary gear rack and the sun gear, wherein the gear ring is connected with the power input shaft of a vehicle engine; the sun gear is connected with the power output shaft; the planetary gears are mounted on the planetary gear rack and are connected with a power adjusting control device capable of changing the speeds of the planetary gears; and the power adjusting control device comprises a control power input shaft and a control gear arranged at one end of the control power input shaft.
Owner:宏万兵

Stranding machine with frequency division lay control function

Disclosed is a stranding machine with a frequency division lay control function. The stranding machine comprises a driving winch variable-frequency controller, a traction wheel motor and a winch driving motor; and the length of a real-time stranded wire is calculated through the rotating speed of the main motor and the rotating speed of the winch, the pulse quantity of the traction wheel is changed, and the electronic gear ratio of the driver is controlled to control the speed ratio of the traction wheel motor to the winch driving motor, so that the speed ratio of the traction wheel and the winch is changed so as to achieve the purpose of controlling the lay.
Owner:GUANGZHOU HONGHUI ELECTRICIAN & MACHINERY

Tooth-forming method having tooth finishing, and combination tool therefor

The invention relates to a method for producing gears, wherein in a first step a set of teeth (6) is formed by means of a skiving wheel (4) rotationally driven by a tool spindle (2) in a workpiece gear (1) rotationally driven synchronously thereto by a workpiece spindle (5), wherein the workpiece spindle (5) and the tool spindle (2) are at an axis intersection angle ([Alpha]) to each other and theadvancement occurs in the tooth-flank extension direction, and wherein in a second step at least some teeth of the set of teeth (6) are machined by means of a tooth-machining tool (7). A combined tool is used, in the case of which the tooth-machining tool (7) and the skiving wheel (4) are fixedly connected to each other. Between the two steps, the combined tool (3) remains connected to the tool spindle (2) and the workpiece gear (1) remains connected to the workpiece spindle (5). Between the two steps, merely the relative position of the tool spindle (2) in relation to the workpiece spindle (5) and the rotational speed ratio of the two spindles (2, 5) are changed.
Owner:PROFILATOR

Control device for vehicular power transmitting apparatus

A control device is disclosed which can obtain increased fuel economy performance depending on a kind of fuel in a vehicle having an internal combustion engine and an electric motor when the kind of fuel supplied to the internal combustion engine is altered. A determining vehicle speed (V 1 ) and determining output torque (T 1 ), representing a boundary value with which a step-variable control region and a continuously variable control region of a shifting mechanism ( 10 ) are demarcated, are altered such that the higher the mixing ratio of ethanol, the lower will be the determining vehicle speed (V 1 ) and determining output torque (T 1 ). Therefore, the determination is made whether to operate a first electric motor (M 1 ) depending on the mixing ratio of ethanol, making it possible to obtain increased fuel economy performance in line with the mixing ratio of ethanol.
Owner:TOYOTA JIDOSHA KK

Chuck type stepless speed changing mechanism

InactiveCN104033551AChange speed ratioTo achieve the purpose of continuously variable speedGearingGear vibration/noise dampingTooth spacePulley
The invention relates to a chuck type stepless speed changing mechanism which comprises a driving belt pulley and a driven belt pulley. Each belt pulley comprises a rotary shaft, a rear mounting base end cover, a front mounting base end cover, spiral discs and chuck plates, each rear mounting base end cover is arranged at one end of the corresponding rotary shaft, and each front mounting base end cover is arranged at the other end of the corresponding rotary shaft. The chuck type stepless speed changing mechanism is characterized in that the spiral discs are arranged on the rear mounting base end covers, positioning tooth spaces which can be meshed with spiral tooth spaces of the spiral discs are arranged on the inner side surfaces of the chuck plates, belt wheels are arranged at the tail ends of the chuck plates, a plurality of belt clamp grooves are spliced with one another to form each belt wheel and are arranged around the axis of the corresponding rotary shaft, and the chuck plates are mounted on plate grooves of the front mounting base end covers, are fixed by the aid of fixing grooves and only can move along the radius directions of the belt wheels. The chuck type stepless speed changing mechanism has the advantages that only the radiuses of wheel discs of the two belt pulleys need to be adjusted, so that a speed regulating ratio of the mechanism can be changed, and speeds can be regulated under the condition that the belt pulleys are not changed; the chuck type stepless speed changing mechanism is flexible in regulating range, and speed regulating tasks under different working conditions can be implemented.
Owner:SHANGHAI INST OF TECH

Continuously variable transmission

InactiveCN108730469AWith continuously variable speedWide range of speed ratioFluid gearingsHigh pressureVariable displacement pump
The invention discloses a continuously variable transmission. The continuously variable transmission comprises a pump and a motor, the pump is a constant displacement pump or a variable displacement pump, the motor is a fixed displacement motor or a variable displacement motor, and at least one of the pump and the motor is a variable displacement structure; and a high-pressure input port of the motor communicates with a high-pressure output port of the pump, a low-pressure input port of the pump communicates with a low-pressure output port of the motor, an inner rotor of the pump is power input, an outer rotor of the pump is power output, and the outer rotor of the pump and an inner rotor of the motor are of a rigid connection structure or a rigid integrated structure. According to the continuously variable transmission, due to the fact that the rotating torque borne by the outer rotor of the pump and the output torque of the motor are output in an overlapping mode, the system efficiency and the output rotating speed are greatly improved, when the rotating torque required by the load is close to the rotating torque of the inner rotor of the pump, the output rotating speed of the continuously variable transmission is close to the input rotating speed, and the efficiency of the continuously variable transmission is close to 100%.
Owner:HEFEI CHUANGYUAN VEHICLE CONTROL TECH

Automatic gear shifting method of hydraulic transmission system

The invention provides an automatic gear shifting method of a hydraulic transmission system, aiming at solving the problem that the efficiency of the hydraulic transmission system changes with loads. A combination mode of step regulation and stepless regulation is adopted, wherein the step regulation plays the role of crude regulation, and the stepless regulation plays the role of fine regulation. A mechanical transmission is adopted for crude regulation, and a magnetic powder clutch or a device with similar function is adopted for fine regulation. By a certain algorithm, a hydrotransmitter can be caused to work at a high-efficiency point, thereby achieving the purposes of improving efficiency and saving energy.
Owner:SICHUAN UNIV

Intelligent glass fiber reinforced plastic automatic production machine

The invention discloses an intelligent glass fiber reinforced plastic automatic production machine. The machine comprises a base, a first sliding way is arranged in the top face of the base in a penetrating manner, a mover is arranged in the first sliding way, and a left machine body is fixedly arranged on the mover. The intelligent glass fiber reinforced plastic automatic production machine is simple in structure and convenient to use, automatic production of glass fiber reinforced plastic paste spreading work is completed through gear transmission, and compared with existing common hand molding in China, the machine has the advantages that the mechanical degree is higher, the production efficiency is higher, it can be guaranteed that paste spreading materials of all layers are the same,and the process performance of products is improved. The machine is provided with a sliding matching block, the matching block can be controlled through a control rod, the movable distance of the matching block is changed, and therefore the rotating speed ratio of a main shaft to a threaded shaft is changed, the purpose of changing the number of layers of materials spread with the paste every timeis achieved, self-changing can be conducted according to user requirements, and product diversity is improved.
Owner:南通盛瑞复合材料有限公司

Split-type supercharger for a turbocharged engine

The invention relates to a split supercharger of a turbo supercharged engine and is used for realizing the matching of the air inlet pressure of the engine and the work condition of the engine. The split supercharger consists of an air compressor, a turbine and an intermediate body and is characterized in that the intermediate body is in a split structure and comprises an air compressor end intermediate body, a turbine end intermediate body, an intermediate body casing, a rolling wheel turntable type stepless speed changer and a driving motor, the air compressor end intermediate body and the turbine end intermediate body are connected through the intermediate body casing, the intermediate body casing is connected with the driving motor through a gear engaging mechanism, and the rolling wheel turntable type stepless speed changer is arranged in an inner cavity of the intermediate body casing. The split supercharger has the advantages that the structure is simple, the manufacture cost is low, the work noise is low, the split supercharger can be matched with different work conditions of the engine, the efficiency of the engine is improved, and the NVH (noise, vibration and harshness) performance of the engine is improved.
Owner:GREAT WALL MOTOR CO LTD

Multi-functional integrated type hydraulic cylinder

The invention discloses a multi-functional integrated type hydraulic cylinder. The multi-functional integrated type hydraulic cylinder comprises a main cylinder barrel, a main cylinder cover, a barrel-shaped main cylinder piston rod, a rapid cylinder guide sleeve, an isolating ring, a three-section card key and a main cylinder guide sleeve and is characterized in that: a first oil port, a second oil port and a third oil port are formed on the main cylinder barrel; a fourth oil port and a sixth oil port are formed on the main cylinder cover; a positioning cylinder guide sleeve is matched with the inner wall of the left end part of the main cylinder barrel; the inner wall of the positioning cylinder guide sleeve is matched with the outer wall of the main cylinder guide sleeve; the left end part of a barrel-shaped rapid cylinder piston rod is matched with the inner wall of the barrel-shaped main cylinder piston rod; the right end of the barrel-shaped rapid cylinder piston rod is connected with a locknut in a matching way; a rapid cylinder head is connected with the inner wall of the left end part of the barrel-shaped main cylinder piston rod in a matching way; a low-pressure oil inlet pipe is fixedly connected in the barrel-shaped rapid cylinder piston rod; and the right end of the low-pressure oil inlet pipe is a fifth oil port. The multi-functional integrated type hydraulic cylinder has the advantages of compact structure, high circulating operation speed, high working pressure, large thrust force of a working condition, high power density and convenient installation.
Owner:泸州众大科技液压件有限公司

Stepless hydrodynamic transmission device

A stepless hydraulic transmission device, including a front-stage eccentric movable vane pump, a movable seat, a secondary eccentric movable vane pump, and a displacement control device; the front-stage eccentric movable vane pump is movably arranged on one side of the movable seat, The secondary eccentric movable vane pump is arranged on the opposite side of the movable seat; the pre-stage eccentric movable vane pump includes the first rotor of the pre-stage, several movable vanes of the pre-stage, the second rotor of the pre-stage connected with the movable vanes of the pre-stage one by one and The front-stage eccentric part; the secondary eccentric movable vane pump includes the secondary first rotor, several secondary movable vanes, the secondary second rotor and the secondary eccentric part connected to the secondary movable vanes one by one; the front-stage eccentric part It is installed on the movable seat; there is a displacement control device on the movable seat, and the displacement control device controls the rotation or translational movement of the movable seat, thereby changing the eccentric distance between the front-stage eccentric member and the front-stage first rotor. The transmission device has the advantages of large transmission torque, which can not only increase the output torque, but also increase the output speed, and can also transmit high-efficiency torque transmission under the condition that the output shaft speed exceeds the input shaft.
Owner:汤斌

Chuck type continuously variable transmission mechanism

InactiveCN104033551BChange speed ratioTo achieve the purpose of continuously variable speedGearingGear vibration/noise dampingTooth spacePulley
The invention relates to a chuck type stepless speed changing mechanism which comprises a driving belt pulley and a driven belt pulley. Each belt pulley comprises a rotary shaft, a rear mounting base end cover, a front mounting base end cover, spiral discs and chuck plates, each rear mounting base end cover is arranged at one end of the corresponding rotary shaft, and each front mounting base end cover is arranged at the other end of the corresponding rotary shaft. The chuck type stepless speed changing mechanism is characterized in that the spiral discs are arranged on the rear mounting base end covers, positioning tooth spaces which can be meshed with spiral tooth spaces of the spiral discs are arranged on the inner side surfaces of the chuck plates, belt wheels are arranged at the tail ends of the chuck plates, a plurality of belt clamp grooves are spliced with one another to form each belt wheel and are arranged around the axis of the corresponding rotary shaft, and the chuck plates are mounted on plate grooves of the front mounting base end covers, are fixed by the aid of fixing grooves and only can move along the radius directions of the belt wheels. The chuck type stepless speed changing mechanism has the advantages that only the radiuses of wheel discs of the two belt pulleys need to be adjusted, so that a speed regulating ratio of the mechanism can be changed, and speeds can be regulated under the condition that the belt pulleys are not changed; the chuck type stepless speed changing mechanism is flexible in regulating range, and speed regulating tasks under different working conditions can be implemented.
Owner:SHANGHAI INST OF TECH

Patella replacement integrated drilling device

The invention discloses a patella replacement integrated drilling device and belongs to the technical field of medical instruments, the patella replacement integrated drilling device comprises a guider, a holding rod, a drilling assembly and a power connecting rod, the holding rod is arranged on the guider and fixedly connected with the guider, the drilling assembly is arranged on the guider and rotationally matched with the guider, and the power connecting rod is detachably connected with the drilling assembly. According to the patella replacement integrated drilling device, a first gear drives three second gears to rotate, and the three second gears drive three drilling heads to rotate, so that the patella is drilled and does not need to be drilled for three times, and drilling is faster and more stable.
Owner:THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL

Variable speed pulley and bicycle driving device with the same

The present invention provides a variable speed pulley which can cause smooth change of separation distance of two pulley pieces and a bicycle driving device with the same. The variable speed pulley (10) is provided with the following components: a cylindrical hub (11) connected with a rotating a rotating shaft, two pulley sheets (12,13), two torque cams (14,15), and two force applying devices (20,21). The two pulley sheets are respectively equipped on the outer peripheral part of the hub. A V groove for keeping a wheel belt with a V-shaped section is formed between two opposite surfaces of the pulley sheets. Two torque cams are respectively set on the two cam sheets. Each torque cam is composed of two torque cam sheets (16,17(18,19)) which can movably fasten in a spiral direction and are respectively fixed on the hub and the pulley sheets (12(13)). The force applying devices are respectively provided on the two pulley sheets (12,13) and apply force to the pulley sheets (12,13) in a direction of separating the two pulley sheets.
Owner:MITSUBOSHI BELTING LTD
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