CN1044276C - Changeable diameter mechanical stepless speed regulator - Google Patents
Changeable diameter mechanical stepless speed regulator Download PDFInfo
- Publication number
- CN1044276C CN1044276C CN94100793A CN94100793A CN1044276C CN 1044276 C CN1044276 C CN 1044276C CN 94100793 A CN94100793 A CN 94100793A CN 94100793 A CN94100793 A CN 94100793A CN 1044276 C CN1044276 C CN 1044276C
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- wheel
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- speed regulator
- wheel hub
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Abstract
The present invention relates to a mechanical stepless speed regulator with a variable diameter. The present invention is composed of belt pulleys fixed on a shaft, a regulating arm, a regulating screw rod, a hand wheel, etc., wherein at least one of the belt pulleys is a combined variable diameter wheel which is formed by combining a plurality of wheel blocks and wheel spokes, the wheel blocks are arranged on the outer margin of the periphery of a hub and can slide along the radial direction, and the wheel spokes connect the wheel blocks and a pair of wheel drums which are arranged on the shaft; the regulating arm is respectively connected with the wheel drums, and a driving belt is arranged on the wheel blocks. The present invention has the advantages that the transmitted power of the present invention can be as high as thousands of kilowatts and as low as a couple of kilowatts; besides, the present invention is in a power-constant type and can run for a long time at any rotational speed. The running efficiency of the present invention can be more than 95 percent, and the present invention has low manufacturing cost.
Description
A kind of mechanical stepless speed regulator of variable-diameter, it belongs to mechanical transmission fields.
The stepless change transmission occupies an important position in mechanical transmission fields, industry that it relates to and scope also are extremely widely, current people have higher requirement to various machinery, and this just makes a lot of machinery must use continuously variable transmittion, in order to obtaining effect better.
At present, the mechanical stepless speed-changing transmission device mainly is the gap that is contained in the fixed dish of two tapered diameter on the axle with change, thus change driving belt on this wheel disc operating radius and reach infinite variable speed purpose.This device can't transmit bigger power at present, and the cost height, particularly can not long-time running under a certain fixed rotating speed.
The present invention is exactly according to above-mentioned deficiency, develops a kind of variable-diameter formula mechanical stepless speed regulator that contains.
The present invention contains the belt wheel that is fixed on the axle, be used to connect and the regulating arm of regulating two belt wheels and the adjusting screw rod that links to each other of regulating arm and handwheel etc. with it, main points of the present invention are that described belt wheel has at least 1 also can be a plurality of, be can be along the wheel piece of the radial expansion of taking turns by several are housed on the circumference radially outer edge of wheel hub, each is taken turns piece and links to each other with wheel hub on sliding over axle by spoke, and the combined type of the variable-diameter of forming wheel, driving belt is contained on the wheel piece, and the wheel hub on the combined type wheel is connected with an end of the regulating arm that has fixed support.
Wheel hub of the present invention is for to have several equally spaced radial holes on the circumference radially outer edge.The wheel piece is fan-shaped polyhedron, and at the polyhedron inner side surface bar of footpath less than the wheel hub radial hole is housed radially always, and bar is sleeved on the radial hole of wheel hub.Wheel hub of the present invention can be 1, also can be 2, slides over respectively on wheel hub two side shafts.
The invention has the advantages that this device since can be easily many belts combinations, thereby its transmitted power can be up to thousands of KW, also can be little to several KW, it is again a constant power type simultaneously, has excellent economy.This device can be realized zero load starting easily in the position of when starting fixed support by changing regulating arm, this is very important for the equipment of high moment of inertia, it will prolong the working life of equipment, energy saving, the motive force of reduction equipment is supporting, another characteristics of this device are can long-time running under any rotating speed, and this is that other mechanical stepless speed-changing machine tool institute is unapproachable.The operational efficiency of this device can be up to more than 95%, and need not special material and manufacture, and is cheap.
This device also can install control mechanisms such as actuating motor, hydraulic efficiency servo-valve additional by regulating leading screw, makes this device realize distant control and control automatically easily.
Below in conjunction with accompanying drawing the present invention is described further.
Fig. 1 is a kind of embodiment's of variable-diameter mechanical stepless speed regulator structure and a fundamental diagram.
Fig. 2 is speed regulator embodiment's a side view.
Fig. 3 is the structural representation of speed regulator embodiment diameter-variable wheel.
Fig. 4 is side-looking and the partial sectional view of diameter-variable wheel when minimum diameter.
Fig. 5 is side-looking and the partial sectional view of diameter-variable wheel when maximum diameter.
1 is that the wheel piece, 2,2 of taking turns on the input shaft is respectively a pair of spoke among the figure, the 3, the 3rd, and a pair of wheel hub, the 4th, axle, the 5th, band driving belt, 6,6 is respectively fixed support on a pair of regulating arm, and 7,7 is respectively a pair of regulating arm, the 8th, and the wheel piece of taking turns on the output shaft, the 9th, output shaft, 10, the 10th, a pair of spoke, 11, the 11st of taking turns on the output shaft, a pair of wheel hub on the output shaft, the 12nd, regulate leading screw, the 13rd, handwheel, the 14th, wheel hub, the 15th, the hole on the wheel hub, the 16th, the bar on the wheel piece, the 17th, pin.
Present embodiment Fig. 1 has shown a kind of combining form of the present invention, as can be seen from FIG., it is combined by the V-shape belt 5 that is contained on the wheel piece by the diameter-variable wheel on diameter-variable wheel on the input shaft 1 and the output shaft 9, and each take turns a pair of spoke on the piece (2,2 ', 10,10 ') respectively with each on a pair of wheel hub (3,3 ', 11,11 ') link to each other.Wheel hub 3 on the input shaft is connected by the regulating arm 7 usefulness pins that have fixed support 6 with wheel hub 11 on the output shaft, wheel hub 3 on the input shaft is connected by the regulating arm 7 usefulness pins that have fixed support 6 with wheel hub 11 on the output shaft, two regulating arm one ends link to each other with the adjusting leading screw 12 that has positive and negative two kinds of screw threads respectively, regulate on the leading screw handwheel 13 is housed.
Fig. 3 has shown the structure that spoke and wheel piece link to each other with wheel hub, and spoke 2 all is connected by pin 17 with taking turns between piece 1 wheel hub 3 as can be seen from Figure, and spoke is connected on the circumference of wheel hub.
Fig. 4, Fig. 5 demonstrate the schematic representation of diameter when minimum and maximum of wheel respectively.Have several equally spaced radial holes 15 as seen from the figure on the circumference radially outer edge of wheel hub 14, the bar 16 that is fixed on the sectional wheel piece 1 is sleeved on the radial hole of wheel hub, along with the variation of the diameter of taking turns, the position of the bar on the sector unit in wheel bore changes relatively.
Working principle of the present invention is: rotate adjusting screw rod 10 by rotating handwheel 13, two regulating arms 7,7 are regulated the end thrust of positive and negative two screw threads on the leading screw and are changed simultaneously in the other direction the position of two arms, thereby changed four wheel hubs (3,3 ', 11,11 ') relative position, wheel hub drive spoke 2,2 ', 10,10 ', the position of wheel piece 1,8 is changed, thereby realized changing the diameter of belt wheel.And since adjustable two regulating arms on fixed support 6,6 ' effect, the diameter inverse variation of two-wheeled, thus reached infinite variable speed purpose by belt 5.And adjustable fixed support only just makes its position move when the zero load starting equipment of needs, the starting finish then locked motionless, specific operation process is for when the wheel on the input shaft directly is in minimum position, just two regulating arms are in when drawing close the position regulating the leading screw end, regulate fixed support simultaneously and regulate leading screw, make the pulley diameters on the output shaft also be in minimum position, this moment, belt made output shaft not have moment of torsion output because of skidding, then do not rotated by drive equipment, and input shaft end is implemented in the starting under zero load, after starting finishes,, make the pulley diameters on the output shaft reach maximum with preceding fulcrum of counter regulation mutually and adjusting leading screw, be the minimum output speed of this invention at this moment, lock fixed support then, regulate leading screw, make the rotating speed that equipment reaches to be needed.
Claims (2)
1. the mechanical stepless speed regulator of a variable-diameter, it is by being separately fixed on the input and output axle two by a plurality of combined type wheels that can form along the wheel piece (1) of wheel hub (14) radial expansion, and two pairs of regulating arms (7,7 ') of control two-wheeled envelope diameter and be contained on two combination wheels belt compositions such as (5) in order to transferring power, it is characterized in that described combined type wheel is symmetrical structure, it takes turns the spoke (2,2 ') that the axial two ends of piece all are hinged with symmetrical placement, and the spoke outside all is equipped with the adjusting drum (3,3 ') that is hinged with it.
2. according to the described speed regulator of claim 1, it is characterized in that described center of taking turns piece (1) has been provided with the slide bar (16) of slide rail and transmitting torque effect, this bar slides over wheel hub (14) and goes up in the corresponding hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94100793A CN1044276C (en) | 1994-02-04 | 1994-02-04 | Changeable diameter mechanical stepless speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94100793A CN1044276C (en) | 1994-02-04 | 1994-02-04 | Changeable diameter mechanical stepless speed regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1137104A CN1137104A (en) | 1996-12-04 |
| CN1044276C true CN1044276C (en) | 1999-07-21 |
Family
ID=5029847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94100793A Expired - Fee Related CN1044276C (en) | 1994-02-04 | 1994-02-04 | Changeable diameter mechanical stepless speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1044276C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817983B (en) * | 2012-09-05 | 2015-11-18 | 李龙 | Stepless speed changing mechanism |
| CN104015518B (en) * | 2014-05-29 | 2015-09-30 | 深圳市精密达机械有限公司 | A kind of publish books infinitely variable speeds guiding mechanism and passage of publishing books thereof of centre-stitched train line |
| CN113663347A (en) * | 2021-08-21 | 2021-11-19 | 叶丽珊 | Variable speed centrifugal spray drying equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2645946A (en) * | 1951-10-18 | 1953-07-21 | Schleif Edwin Henry | Variable-speed pulley assembly |
| CN1031753A (en) * | 1988-06-28 | 1989-03-15 | 方俊昌 | Expansion type stepless speed variator |
-
1994
- 1994-02-04 CN CN94100793A patent/CN1044276C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2645946A (en) * | 1951-10-18 | 1953-07-21 | Schleif Edwin Henry | Variable-speed pulley assembly |
| CN1031753A (en) * | 1988-06-28 | 1989-03-15 | 方俊昌 | Expansion type stepless speed variator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1137104A (en) | 1996-12-04 |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |