CN104696448A - Stepless reduction transmission - Google Patents
Stepless reduction transmission Download PDFInfo
- Publication number
- CN104696448A CN104696448A CN201510149226.2A CN201510149226A CN104696448A CN 104696448 A CN104696448 A CN 104696448A CN 201510149226 A CN201510149226 A CN 201510149226A CN 104696448 A CN104696448 A CN 104696448A
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- CN
- China
- Prior art keywords
- speed
- axle sleeve
- speed governing
- governing
- gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/06—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion with worm and worm-wheel or gears essentially having helical or herring-bone teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/42—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion with gears having teeth formed or arranged for obtaining multiple gear ratios, e.g. nearly infinitely variable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/039—Gearboxes for accommodating worm gears
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention relates to the technical field of mechanical transmission devices, in particular to a stepless reduction transmission, comprising a box, an output shaft, a worm gear, a worm, a central base, a speed change component, a cross-slot component and a speed governor. The top of the worm gear is provided with a first groove; the lower portion of the central base is embedded into the first groove; the bottom of the central base is provided with a speed-governing oblique groove, the top of the speed governor is provided with a speed-governing wedge, and the speed-governing wedge is aligned with and embedded in the speed-governing oblique groove; the central base is connected with the output shaft through the speed change component and the cross-slot component. The stepless reduction transmission has the advantages that the traditional bevel gear drive is replaced by worm-gear drive, the rotational radius of the central base and that of the speed change component during the central base and the speed change component cycling in a plane are changed, speed of the output shaft is changed accordingly, and reduction and stepless speed change are achieved; the stepless reduction transmission is simple and compact in structure, the functions of the traditional reduction case and those of the traditional stepless transmission case are integrated, the size of mechanical equipment can be reduced, and mechanical efficiency can be improved.
Description
Technical field
The present invention relates to mechanical transmission technical field, especially a kind of by the infinite speed reduction speed changer slowed down and stepless shift function combines together.
Background technique
Known, the low speed power of stepless modulation is power source indispensable in the industries such as automobile, weaving or machining, and it directly has influence on the normal operation of correlation machine equipment, the realization of production technology and the quality etc. of final products.In the prior art, for obtaining the low speed power of stepless modulation, the following two kinds of modes of main employing, that is: a kind of is that the mode utilizing speed reducer and infinitely variable transmission two kinds of equipment to combine realizes; Another kind is realized by the control of variable-frequency electric Force system.
But, adopt first kind of way but to there is following drawback: 1, the combination of two kinds of equipment will inevitably cause the structural complexity of whole device and correlation machine equipment, increase the volume of machinery equipment; 2, because infinitely variable transmission mainly utilizes taper cone pulley to realize the effect of transmission gear shift, it relies on frictional force to carry out transferring power, so just easily causes heating and the wearing and tearing of parts, and then affects its mechanical efficiency, make its poor durability.And also there are the requirements of the times that control system is too complicated, power consumption is high, do not meet energy-conserving and environment-protective in the second way.
Therefore, how proposing improvement project to existing stepless modulation low speed power device, is relevant industries technical problems urgently to be resolved hurrily.
Summary of the invention
For the deficiency that above-mentioned prior art exists, the object of the invention is to a kind of simple and compact for structure, durable, directly utilize gear transmission to realize deceleration and the infinite speed reduction speed changer of stepless change effect.
To achieve these goals, the present invention adopts following technological scheme:
A kind of infinite speed reduction speed changer, it comprises:
One casing, is provided with the first axle sleeve inside the underside wall of described casing, the position coincided in the top wall of described casing, with the center line of the first axle sleeve is fitted with an output shaft;
One worm gear, described worm gear set is loaded on the first axle sleeve, and the top of described worm gear offers the first embedded slot;
One worm screw, described worm screw through casing side walls and be meshed with worm gear;
One center base, the end face of described center base is provided with on spindle part, bottom surface and offers speed governing skewed slot, and the center line of described speed governing skewed slot is crossing with the center line of center base, and the bottom contraposition of described center base is embedded in the first embedded slot;
One speed change assembly, described speed change assembly is set on spindle part, and the top of described speed change assembly offers the second embedded slot;
One cross recess mechanism, the lug boss that described cross recess mechanism comprises main part, is opened in the cross recess portion on main part end face and is arranged on main part bottom surface, tail end and the contraposition of cross recess portion of described output shaft are fitting to connection, and described lug boss is embedded in the second embedded slot;
With
One speed governing part, the top of described speed governing part is provided with speed governing skewback, and described speed governing part is installed on casing by the first axle sleeve, and described speed governing skewback is chimeric with the contraposition of speed governing skewed slot.
Preferably, described spindle part comprises and is arranged at the second axle sleeve on center base end face and is arranged in the second axle sleeve and the main shaft that distribute concentric on the second axle sleeve, described speed change assembly comprises internal gear, external gear and several are around the equally distributed elastic clamping block of internal gear, and described second embedded slot is opened in the top of external gear;
Described outer gear sleeve is connected on main shaft and between the second axle sleeve and main shaft, described inner gear housing is connected on the second axle sleeve, and described elastic clamping block is installed in the inner side of the side walls of casing and offsets with the side of internal gear.
Preferably, described elastic clamping block comprises pressure spring and compact heap, and one end of described pressure spring is connected with the side walls of casing, the other end is connected with compact heap, and the side of described compact heap and internal gear offsets.
Preferably, the monnolithic case of described internal gear is six cube structures, and described elastic clamping block amounts to four.
Preferably, described speed governing part comprises the speed governing cover be socketed in the first axle sleeve, be socketed on speed control rod in speed governing cover and for speed governing cover being locked in the lock tube in the first axle sleeve, described speed governing skewback is arranged at the top of speed control rod.
Preferably, described speed governing skewed slot is square groove body structure, and described speed governing skewback is square block body structure.
Preferably, the shape of described first embedded slot is swallow-tail form, is full of mutually with the first embedded slot and closes in the bottom of described center base.
Preferably, the shape of described second embedded slot is swallow-tail form, and described lug boss is full of mutually with the second embedded slot and closes.
Owing to have employed such scheme, the present invention replaces traditional taper cone pulley transmission with the gear transmission of worm gear and worm screw, it is by changing the size of center base and the turning radius of speed change assembly when carrying out planar circumferential motion, change the rotating speed size of output shaft, thus realize slowing down and infinite variable speed effect; It is simple and compact for structure, the function of traditional speed reducer and infinitely variable transmission became one, and is conducive to reducing the volume of machinery equipment, improves mechanical efficiency, have very strong use value and market popularization value.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As shown in Figure 1, a kind of infinite speed reduction speed changer that the embodiment of the present invention provides, it comprises:
For encapsulating the casing 1 of the internal components of speed changer, it is assembled by base plate, side plate and top board, inside the underside wall of casing 1, (i.e. base plate) is provided with first its axis hole of axle sleeve 2(through base plate and communicates with the external world), meanwhile, position that is upper in the top wall (i.e. top board) of casing 1, that coincide with the center line of the first axle sleeve 2 is fitted with an output shaft 3;
Play worm gear 4 and the worm screw 5 of power input function, wherein, worm gear 4 is set on the first axle sleeve 2, offers the first embedded slot at the top of worm gear 4, and worm screw 5 is then meshed with worm gear 4 through the side walls of casing 1 (i.e. one of them side plate of casing 1);
Be installed in the center base 6 of the top of worm gear 4, the end face of center base 6 is provided with on spindle part, bottom surface and offers speed governing skewed slot 7, the bottom contraposition of center line crossing with the center line of center base 6 (can be understood as speed governing skewed slot 7 relative to center base 6 the is tilting layouts) center base 6 of speed governing skewed slot 7 is embedded in the first embedded slot;
Be set in the speed change assembly on spindle part, offer the second embedded slot 8 at the top of speed change assembly;
Realize the cross recess mechanism of the anatomical connectivity function between output shaft 3 and speed change assembly, it lug boss 11 comprising main part 9, be opened in the cross recess portion 10 on main part 9 end face and be arranged on main part 9 bottom surface, tail end and cross recess portion 10 contraposition of output shaft 3 are fitting to connection, and lug boss 11 is then embedded in the second embedded slot 8;
With
For adjusting the speed governing part of the position of the spin axis of center base 6, the top of speed governing part is provided with speed governing skewback 12, speed governing part is installed on casing 1 by the first axle sleeve 2, and speed governing skewback 12 is then chimeric with speed governing skewed slot 7 contraposition.
So, external motor provides power by connecting worm 5 to whole speed changer, makes worm gear 4 carry out spinning motion relative to the first axle sleeve 2, and then drives output shaft 3 to rotate by center base 6 and speed change assembly, thus realizes Power output, when speed governing skewback 12 is filled in speed governing skewed slot 7 completely (under original state), the center line counterpoise of the center line of center base 6, the center line of speed change assembly and output shaft 3 is combined on the center line of worm gear 4, spinning motion due to worm gear 4 can drive center base 6 and speed governing part to rotate simultaneously, center base 6 then can drive output shaft 3 to rotate by speed change assembly, now, the state of whole speed changer belongs to a tooth difference speed reducer, when being regulated the relative position between speed governing skewback 12 and speed governing skewed slot 7 by adjusting element, because speed governing skewed slot 7 is tilting layouts, then speed governing skewback 12 inserts or is entrenched in the difference of position in speed governing skewed slot 7, the center line of center base 6 can be caused to occur the skew of different distance relative to the center line of worm gear 4, and then when worm gear 4 drives center base 6 to rotate, speed change assembly can be driven to carry out revolution motion with the center line of worm gear 4 for spin axis for center base 6 and planar circumferential is moved, so, utilize the annexation of cross recess portion 10 and output shaft 3, the rotating speed of output shaft 3 is made to occur change, the stepless change realizing speed changer regulates, based on this, the center line of center base 6, relative to the difference of the disalignment distance of worm gear 4, can cause the different of speed change assembly revolution-radius and planar circumferential moving radius, and then cause the difference of output shaft 3 rotating speed, realize infinite variable speed function with this.
Further, for ensureing infinite variable speed effect, simplify the structure of whole speed changer to greatest extent simultaneously, the spindle part of the present embodiment comprise the second axle sleeve 13 of being arranged on center base 6 end face and to be arranged in the second axle sleeve 13 and with the main shaft 14 of the second axle sleeve 13 in decentered distribution, speed change assembly then comprises internal gear 15, external gear 16 and several are around the equally distributed elastic clamping block of internal gear 15, and the second embedded slot 8 is opened in the top of external gear 16; External gear 16 is socketed on main shaft 14 and between the second axle sleeve 13 and main shaft 14, internal gear 15 is socketed on the second axle sleeve 13, and elastic clamping block is installed in the inner side of the side walls of casing 1 and offsets with the side of internal gear 15.So, internal gear 15 can being pressed on the second axle sleeve 13, making center base 6 when rotating by the setting of elastic clamping block, internal gear 15 at the enterprising parallel planes circular movement of the end face of center base 6, and can only can not carry out the spinning motion of self; Meanwhile, the setting due to external gear 16 can be convenient to the assembling of output shaft 3 and cross recess mechanism, and center base 6, when rotating, can utilize the revolution motion of external gear 16 to realize rotation and the Power output of output shaft 3.
For ensureing the pressing effect of internal gear 15, the elastic clamping block of the present embodiment comprises pressure spring 17 and compact heap 18, and one end of pressure spring 17 is connected with the side walls of casing 1, the other end is connected with compact heap 18, and compact heap 18 offsets with the side of internal gear 15.
Spinning motion is there is not while can carrying out movement on the end face of center base 6 for making internal gear 15, to ensure the planar circumferential movement effects that internal gear 15 is final, the monnolithic case of the internal gear 15 of the present embodiment adopts six cube structures, and elastic clamping block amounts to four, four sides of pressing internal gear 15 respectively.
For ease of carrying out stepless change adjustment to whole speed changer, the speed governing part of the present embodiment comprises the speed governing cover 19 be socketed in the first axle sleeve 2, be socketed on speed control rod 20 in speed governing cover 19 and for speed governing cover 19 is locked in lock tube 21 in the first axle sleeve 2, speed governing skewback 12 is arranged at the top of speed control rod 20.So, the active connections such as nut can be utilized to coordinate with lock tube 21, speed governing cover 19 to be locked to the diverse location in the first axle sleeve 2, thus adjustment or control speed governing skewback 12 are inserted into the position in speed governing skewed slot 7, finally control the Power output of output shaft 3 with this.
In addition, be ensure the textural association between associated components, and realize the precision adjustment of associated components, the speed governing skewed slot 7 of the present embodiment adopts square groove body structure, and speed governing skewback 12 adopts and speed governing skewed slot 7 is full of the square block body structure closed mutually.Meanwhile, the shape of first embedded slot of the present embodiment is swallow-tail form, and the sectional shape of the bottom of center base 6 also adopts swallowtail-shaped structure, closes to be full of mutually with the first embedded slot.
In like manner, the preferred swallow-tail form of shape of second embedded slot 8 of the present embodiment, accordingly, lug boss 11 also adopts swallowtail-shaped structure, closes to be full of mutually with the second embedded slot 8.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. an infinite speed reduction speed changer, is characterized in that: it comprises
One casing, is provided with the first axle sleeve inside the underside wall of described casing, the position coincided in the top wall of described casing, with the center line of the first axle sleeve is fitted with an output shaft;
One worm gear, described worm gear set is loaded on the first axle sleeve, and the top of described worm gear offers the first embedded slot;
One worm screw, described worm screw through casing side walls and be meshed with worm gear;
One center base, the end face of described center base is provided with on spindle part, bottom surface and offers speed governing skewed slot, and the center line of described speed governing skewed slot is crossing with the center line of center base, and the bottom contraposition of described center base is embedded in the first embedded slot;
One speed change assembly, described speed change assembly is set on spindle part, and the top of described speed change assembly offers the second embedded slot;
One cross recess mechanism, the lug boss that described cross recess mechanism comprises main part, is opened in the cross recess portion on main part end face and is arranged on main part bottom surface, tail end and the contraposition of cross recess portion of described output shaft are fitting to connection, and described lug boss is embedded in the second embedded slot;
With
One speed governing part, the top of described speed governing part is provided with speed governing skewback, and described speed governing part is installed on casing by the first axle sleeve, and described speed governing skewback is chimeric with the contraposition of speed governing skewed slot.
2. a kind of infinite speed reduction speed changer as claimed in claim 1, it is characterized in that: described spindle part comprises and is arranged at the second axle sleeve on center base end face and is arranged in the second axle sleeve and the main shaft that distribute concentric on the second axle sleeve, described speed change assembly comprises internal gear, external gear and several are around the equally distributed elastic clamping block of internal gear, and described second embedded slot is opened in the top of external gear;
Described outer gear sleeve is connected on main shaft and between the second axle sleeve and main shaft, described inner gear housing is connected on the second axle sleeve, and described elastic clamping block is installed in the inner side of the side walls of casing and offsets with the side of internal gear.
3. a kind of infinite speed reduction speed changer as claimed in claim 2, it is characterized in that: described elastic clamping block comprises pressure spring and compact heap, one end of described pressure spring is connected with the side walls of casing, the other end is connected with compact heap, and the side of described compact heap and internal gear offsets.
4. a kind of infinite speed reduction speed changer as claimed in claim 2, is characterized in that: the monnolithic case of described internal gear is six cube structures, and described elastic clamping block amounts to four.
5. a kind of infinite speed reduction speed changer according to any one of claim 1-4, it is characterized in that: described speed governing part comprises the speed governing cover be socketed in the first axle sleeve, be socketed on speed control rod in speed governing cover and for speed governing cover being locked in the lock tube in the first axle sleeve, described speed governing skewback is arranged at the top of speed control rod.
6. a kind of infinite speed reduction speed changer as claimed in claim 5, it is characterized in that: described speed governing skewed slot is square groove body structure, described speed governing skewback is square block body structure.
7. a kind of infinite speed reduction speed changer as claimed in claim 5, is characterized in that: the shape of described first embedded slot is swallow-tail form, is full of mutually with the first embedded slot and closes in the bottom of described center base.
8. a kind of infinite speed reduction speed changer as claimed in claim 5, is characterized in that: the shape of described second embedded slot is swallow-tail form, and described lug boss is full of mutually with the second embedded slot and closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149226.2A CN104696448B (en) | 2015-04-01 | 2015-04-01 | Stepless reduction transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510149226.2A CN104696448B (en) | 2015-04-01 | 2015-04-01 | Stepless reduction transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104696448A true CN104696448A (en) | 2015-06-10 |
| CN104696448B CN104696448B (en) | 2017-04-19 |
Family
ID=53343872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510149226.2A Expired - Fee Related CN104696448B (en) | 2015-04-01 | 2015-04-01 | Stepless reduction transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104696448B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0424752A2 (en) * | 1989-10-25 | 1991-05-02 | Riemscheid, Helmut, Dipl.-Ing. | Stepless variable speed drive |
| CN2212683Y (en) * | 1995-01-13 | 1995-11-15 | 高侠林 | Stepless speed variator |
| JPH09210147A (en) * | 1996-02-01 | 1997-08-12 | Masakatsu Ito | Transmission |
| DE19740406A1 (en) * | 1997-09-09 | 1999-03-25 | Helling Michael Dipl Ing Fh | Gear with continuously adjustable transmission between drive and driven shaft |
| CN1667295A (en) * | 2005-03-22 | 2005-09-14 | 广东工业大学 | Double-power bidirectional automatic switching worm reducer |
| CN203431106U (en) * | 2013-07-16 | 2014-02-12 | 杭州诠世传动有限公司 | Gear reducer capable of carrying out speed regulating without being shut down |
-
2015
- 2015-04-01 CN CN201510149226.2A patent/CN104696448B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0424752A2 (en) * | 1989-10-25 | 1991-05-02 | Riemscheid, Helmut, Dipl.-Ing. | Stepless variable speed drive |
| CN2212683Y (en) * | 1995-01-13 | 1995-11-15 | 高侠林 | Stepless speed variator |
| JPH09210147A (en) * | 1996-02-01 | 1997-08-12 | Masakatsu Ito | Transmission |
| DE19740406A1 (en) * | 1997-09-09 | 1999-03-25 | Helling Michael Dipl Ing Fh | Gear with continuously adjustable transmission between drive and driven shaft |
| CN1667295A (en) * | 2005-03-22 | 2005-09-14 | 广东工业大学 | Double-power bidirectional automatic switching worm reducer |
| CN203431106U (en) * | 2013-07-16 | 2014-02-12 | 杭州诠世传动有限公司 | Gear reducer capable of carrying out speed regulating without being shut down |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104696448B (en) | 2017-04-19 |
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Granted publication date: 20170419 Termination date: 20190401 |