CN113339463B - Combined tooth speed reducer with adjustable clearance - Google Patents
Combined tooth speed reducer with adjustable clearance Download PDFInfo
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- CN113339463B CN113339463B CN202110594154.8A CN202110594154A CN113339463B CN 113339463 B CN113339463 B CN 113339463B CN 202110594154 A CN202110594154 A CN 202110594154A CN 113339463 B CN113339463 B CN 113339463B
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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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
- F16H57/08—General details of gearing of gearings with members having orbital motion
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Abstract
The invention discloses a gap-adjustable combined tooth speed reducer which adopts a structure that movable teeth and fixed teeth are in compound transmission at the same reduction ratio, and the movable teeth with equal reduction ratios are added on the side surfaces of the fixed teeth gears on the basis of fixed teeth transmission, so that the transmission precision is effectively improved, and the bearing capacity of the speed reducer is improved. According to the invention, through the structure of the combined teeth, the processing difficulty is reduced, and the application range is enlarged; the clearance adjusting structure eliminates the side clearance of fixed gear transmission, realizes stepless pre-tightening of the mechanism, and makes the transmission mechanism more suitable for the field of precision transmission; the invention has the advantages of adjustable side clearance, high transmission precision, large bearing capacity, wide transmission ratio range and the like, and is suitable for large-scale application.
Description
Technical Field
The invention relates to an oscillating tooth transmission device, in particular to a combined tooth speed reducer with adjustable clearance.
Background
With the continuous development of movable tooth transmission, a plurality of novel movable tooth speed reducers are developed in succession, the movable tooth transmission can meet the requirements of compact structure, high transmission efficiency, wide transmission ratio range, large bearing capacity and the like, and the corresponding movable tooth transmission theory and technology are more mature.
The fixed gear transmission technology is the most mature and widely applied, but the problem of the side clearance of the fixed gear transmission cannot be effectively solved all the time. And the existence of backlash reduces the transmission accuracy of the fixed gear transmission. Therefore, a reducer with backlash elimination is required to be developed to meet the development requirements of more new technology and new equipment.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a combined tooth speed reducer with adjustable gaps, which adopts a structure that movable teeth and fixed teeth are simultaneously meshed for transmission at the same speed reduction ratio, and the movable teeth with equal speed reduction ratios are added on the side surface for transmission on the basis of the transmission of the fixed teeth, so that the transmission precision is effectively improved, and the bearing capacity of the speed reducer is improved; through the structure of combination tooth, reduced the processing degree of difficulty, increased application scope. The clearance adjusting structure eliminates the side clearance of the fixed gear transmission, so that the device is more suitable for the field of precision transmission; the invention has the advantages of eliminating side clearance, stepless pre-feeding, high transmission precision, large bearing capacity and the like, and is suitable for large-scale application.
The technical scheme adopted by the invention is as follows:
the invention provides a gap-adjustable combined-tooth speed reducer which comprises a first shell, a second shell, an input shaft, an output shaft, a clamp spring, a movable fluted disc, an adjusting block, transmission balls, a combined-tooth track part, a combined-tooth fixed tooth part, constant-speed balls, crossed roller bearings, a first deep groove ball bearing, a second deep groove ball bearing and a third deep groove ball bearing, wherein the first shell is arranged on the first shell;
the first shell and the second shell are of circular structures, the adjusting block, the movable fluted disc, the combined tooth track piece and the combined tooth fixing tooth piece are of circular structures with through holes arranged in the middle, the adjusting block, the movable fluted disc, the combined tooth track piece and the combined tooth fixing tooth piece are arranged inside the first shell and the second shell, and the input shaft sequentially penetrates through the adjusting block, the first shell, the movable fluted disc, the combined tooth track piece, the combined tooth fixing tooth piece and the crossed roller bearing and then is connected with the output shaft;
the first shell is fixedly connected with the second shell; the inner wall of the first shell comprises a threaded portion and a smooth portion, the top and the bottom of the smooth portion are respectively provided with a slide way, the second shell comprises a first circular portion and a second circular portion, the diameter of the first circular portion is smaller than that of the second circular portion, and internal fixed teeth are arranged inside the first circular portion;
the outer surface of the adjusting block comprises a first step for guiding and a second step in threaded connection with the first shell, the diameter of the first step is smaller than that of the second step, the outer surface of the first step is a smooth plane, an external thread matched with the threaded portion of the first shell is arranged on the outer surface of the second step, the outer surface of the first step of the adjusting block is abutted against the first side face of the movable fluted disc, the adjusting block and the first shell form a gap adjusting structure, and the gap adjusting structure can be used for adjusting the position of the movable fluted disc by adjusting the depth of the external thread of the second step of the adjusting block screwed into the threaded portion of the first shell;
the top and the bottom of the movable fluted disc are respectively provided with a rectangular tangent plane for limiting, the rectangular tangent planes at the top and the bottom of the movable fluted disc are matched with the slide way in the first shell, the second side surface of the movable fluted disc is matched with the combined tooth track piece, a plurality of movable fluted disc grooves are uniformly arranged on the circumference of the movable fluted disc, and a transmission ball is fixedly arranged in each movable fluted disc groove of the movable fluted disc;
the combined tooth track piece and the combined tooth fixed tooth piece are fixedly installed to form combined teeth, and the circumference of the side surface of the combined tooth track piece is provided with a wavy track which is matched with the movable toothed disc to install the transmission balls; the outer teeth of the wavy fixed teeth on the peripheral side of the combined tooth fixing tooth part are meshed with the fixed teeth inside the second shell, and a plurality of grooves are uniformly formed in the periphery of the side surface of the combined tooth fixing tooth part; the wavy fixed teeth of the combined tooth fixed tooth piece are matched with the fixed teeth in the second shell;
the input shaft comprises a first end, an eccentric shaft section and a second end, the first end of the input shaft is hinged to an inner hole of a movable toothed disc of the movable toothed disc through a bearing, the combined tooth fixing toothed piece is hinged to the eccentric shaft section of the input shaft through a bearing, and the second end of the input shaft is matched with an inner hole of an output shaft of the output shaft through a bearing;
the output shaft comprises a circular ring part arranged on the first side and a boss arranged on the second side, the circular ring part is provided with grooves, each groove on the first side of the output shaft and the groove of the combined tooth fixing tooth part are fixedly provided with a constant-speed ball, and the boss on the second side of the output shaft is matched with an inner ring of the crossed roller bearing;
when the combined tooth orbit component works, the input shaft is rotated, the eccentric shaft section of the input shaft drives the combined tooth orbit component to revolve around the axis of the input shaft, so that the transmission balls are pushed to move along the wavy orbit of the combined tooth orbit component, the combined tooth orbit component and the input shaft rotate in opposite directions, and the reduction ratio of the combined tooth orbit component and the input shaft is the cycloid wave number of the wavy orbit; meanwhile, the fixed teeth on the peripheral side of the combined tooth fixed gear and the fixed teeth on the inner side of the second shell are in meshing transmission at the same transmission ratio; the fixed tooth part of the combined teeth rotates, and the grooves on the side surfaces of the fixed tooth part can drive the constant-speed balls to rotate, so that the output shaft is driven to rotate.
Preferably, the first end of the input shaft is hinged to the inner hole of the movable fluted disc through two first deep groove ball bearings; the combined tooth fixing tooth piece is hinged to the input shaft eccentric shaft section of the input shaft through two second deep groove ball bearings; and a non-eccentric shaft section at the second end of the input shaft is fixedly provided with a third deep groove ball bearing, the outer ring of the third deep groove ball bearing is matched with the inner hole of the output shaft, and one side of the first deep groove ball bearing in the inner hole of the movable fluted disc is fixed through a clamp spring.
Preferably, threaded holes are uniformly formed in the circumference of the second side boss of the output shaft, the threaded holes of the output shaft are fixedly mounted with the crossed roller bearings through screws, and the crossed roller bearings are fixedly mounted at the right threaded holes of the second shell through screws.
Preferably, the side circumferences of the combined tooth track part and the combined tooth fixing tooth part are respectively provided with a pin hole, the combined tooth track part and the combined tooth fixing tooth part are fixedly installed into a combined tooth through a positioning pin, and the combined tooth does not rotate relatively in the circumferential direction, so that synchronous transmission is realized.
Preferably, the transmission balls are arranged inside the movable fluted disc groove of the movable fluted disc in any one of uniformly distributed distribution, non-uniformly distributed distribution or close-packed distribution.
Preferably, a plurality of mounting holes are formed in the circular side walls of the first shell and the second shell, and the first shell and the second shell are fixed together by means of mounting pieces.
Preferably, the combined-teeth fixing teeth and the fixing teeth of the second housing are both string fixing teeth.
Compared with the prior art, the invention has the following beneficial effects:
(1) compared with other types of fixed gear transmission speed reducers and movable gear transmission speed reducers, the movable gear transmission mechanism has the advantages that the movable gears and the fixed gears are simultaneously meshed for transmission at the same speed reduction ratio, and movable gear transmission with equal speed reduction ratios is added on the side surface on the basis of fixed gear transmission, so that the side surface gap of fixed gear transmission is eliminated, and the transmission precision is improved.
(2) The movable teeth and the fixed teeth are simultaneously meshed for transmission, so that the bearing capacity of the speed reducer is improved. The gap of the transmission mechanism can be adjusted in a stepless manner, and the installation precision of the speed reducer is improved. The combined tooth structure reduces the processing difficulty of parts and enlarges the application range of the speed reducer.
(3) The invention has compact structure, and the reduction ratio of the cycloidal raceway transmission on the left side of the combined tooth track part and the fixed tooth transmission on the peripheral side of the combined tooth fixed tooth part is the same during working, so that the movable teeth and the fixed teeth are in composite transmission, the meshing area is increased, and the bearing capacity is improved. Meanwhile, the side surface is subjected to stepless gap adjustment by a gap adjustment structure, so that the side gap is eliminated, and the transmission precision, the bearing capacity and the transmission stability are improved.
Drawings
FIG. 1 is a schematic view of the overall assembly structure of the present invention;
FIG. 2 is a schematic structural view of an input shaft according to the present invention;
FIG. 3 is a schematic structural view of a removable toothed disc according to the present invention;
FIG. 4 is a schematic view of the structure of the adjusting block according to the present invention;
FIG. 5 is a schematic view of a first housing part according to the present invention;
FIG. 6 is a schematic view of a component of the composite tooth rail member according to the present invention;
FIG. 7 is a second schematic view of the structure of the combined tooth rail member according to the present invention;
FIG. 8 is a schematic view of a component of the composite tooth fixing tooth according to the present invention;
FIG. 9 is a second schematic view of the structure of the fixed tooth member of the composite tooth of the present invention;
FIG. 10 is a schematic view of a second housing part according to the present invention;
FIG. 11 is a schematic view of an output shaft according to the present invention;
FIG. 12 is a second schematic view of the structure of the output shaft according to the present invention;
fig. 13 is a third schematic structural diagram of the output shaft according to the present invention.
Some of the reference numbers in the figures are as follows:
1-an input shaft; 2-a clamp spring; 3-a movable fluted disc; 4-adjusting the block; 5-a first housing; 6-a transmission ball; 7-a combination tooth track member; 8-the combined tooth fixing tooth part; 9-a second housing; 10-an output shaft; 11-constant velocity balls; 12-crossed roller bearings; 131-a first deep groove ball bearing; 132-a second deep groove ball bearing; 133-a third deep groove ball bearing; 14-a locating pin; 15-a gasket; 101-a first end; 102-an eccentric shaft section; 103-a second end; 301-oscillating fluted disc grooves; 302-inner hole of the oscillating fluted disc; 303-rectangular section; 401-adjusting block threads; 402-adjusting block clamp holes; 501-first housing thread; 502-a first housing slide; 701-the track of the combination tooth track member; 702-pin holes of the combination tooth track pieces; 801-fixed teeth of the combined tooth fixed tooth element; 802-grooves of the combination tooth fixing tooth elements; 803-pin holes of the combined tooth fixing tooth piece; 902-stationary teeth inside the second housing; 903-right threaded hole of the second shell; 1001 — groove of output shaft; 1002-output shaft inner hole; 1003-boss of the output shaft; 1004-threaded hole of output shaft.
Detailed Description
Exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
Specifically, the invention provides a clearance-adjustable combined tooth speed reducer which comprises an input shaft 1, a clamp spring 2, a movable toothed disc 3, an adjusting block 4, a first shell 5, a transmission ball 6, a combined tooth rail member 7, a combined tooth fixing toothed member 8, a second shell 9, an output shaft 10, constant-speed balls 11, a crossed roller bearing 12, a first deep-groove ball bearing 131, a second deep-groove ball bearing 132, a third deep-groove ball bearing 133, a positioning pin 14, a gasket 15, a first end 101, an eccentric shaft section 102, a second end 103, a movable toothed disc groove 301, a movable toothed disc inner hole 302, a rectangular tangent plane 303, an adjusting block thread 401, an adjusting block clamp hole 402, a first shell thread 501, a first shell slide way 502, a combined tooth rail member track 701, a combined tooth rail member pin hole 702, a combined tooth fixing toothed member fixing tooth 801, a combined tooth fixing toothed member pin hole 802, a combined tooth fixing toothed member groove 803, a second shell fixing tooth 902, a combined tooth rail member pin hole 701, a combined tooth rail member pin hole 103, a combined tooth groove 103, a second end 103, a first end of a second deep-adjustable gear, a third deep-tooth-adjustable gear, a third deep-type gear, a third gear, a fourth gear, Second housing right threaded hole 903, output shaft recess 1001, output shaft inner hole 1002, output shaft boss 1003 and output shaft threaded hole 1004.
The adjusting block 4 is partially matched with a first shell thread 501 of the first shell 5 through an adjusting block thread 401 and is contacted with the side surface of the rectangular tangent plane 303 of the oscillating-tooth disc 3; the first shell 5 is fixedly arranged on the left side of the second shell 8 through screws; the rectangular section 303 of the movable fluted disc 3 is matched with the first shell slideway 502 of the first shell 5; each movable fluted disc groove 301 of the movable fluted disc 3 is fixedly provided with a transmission ball 6; the transmission ball 6 is arranged on the combined tooth track piece track 701 of the combined tooth track piece 7; the first end 101 of the input shaft 1 is hinged to an inner hole 302 of the movable toothed disc 3 through two first deep groove ball bearings 131; the left side of the first deep groove ball bearing 131 in the movable toothed disc inner hole 302 of the movable toothed disc 3 is fixed through a clamp spring 2; the combined tooth fixing tooth part 8 is hinged on the eccentric shaft section 102 of the input shaft 1 through two second deep groove ball bearings 132; the combined tooth track member 7 and the combined tooth fixing tooth member 8 are fixedly installed into a combined tooth through a positioning pin 14; the external teeth of the combined tooth fixing teeth 801 on the peripheral side of the combined tooth fixing teeth 8 are in internal tooth engagement with the second housing fixing teeth 902 of the second housing 9; a third deep groove ball bearing 133 is fixedly arranged on the non-eccentric shaft section of the second end 103 of the input shaft 1, and the outer ring of the third deep groove ball bearing 133 is matched with an output shaft inner hole 1002 of the output shaft 10; a constant-speed ball 11 is fixedly arranged in each output shaft groove 1001 on the left side of the output shaft 10; the constant velocity ball 11 is arranged on the combined tooth fixing tooth piece groove 803 at the right side of the combined tooth fixing tooth piece 8; an output shaft boss 1003 on the right side of the output shaft 10 is matched with an inner ring of the crossed roller bearing 12; the output shaft 10 is fixedly mounted with the crossed roller bearing 12 through a screw in the output shaft threaded hole 1004; the cross roller bearing 12 is fixed to the second housing right screw hole 903 of the second housing 9 by a screw.
Further, the adjustable clearance's combination tooth reduction gear, its characterized in that: the method is characterized in that: the combined tooth track piece 7, the combined tooth fixing teeth 8 and the positioning pins 14 form a combined tooth structure; the combined teeth formed by combining the combined tooth track part 7 and the combined tooth fixing tooth part 8 through positioning and connecting the combined tooth track part and the combined tooth fixing tooth part by the positioning pin 14 do not rotate relatively in the circumferential direction, so that synchronous transmission is realized.
Further, the adjustable clearance's combination tooth reduction gear, its characterized in that: the adjustable tooth disc 3 and the first shell 5 three of the adjusting block 4 form a clearance adjusting structure, the adjusting block thread 401 of the adjusting block 4 is in threaded connection with the first shell thread 501 of the first shell 5, and the side clearance inside the mechanism can be adjusted through the depth of threaded connection, so that stepless pre-tightening of the whole transmission mechanism is realized, the clearance on the side surface is eliminated, the return difference is eliminated, and the transmission precision is improved.
Further, the adjustable clearance's combination tooth reduction gear, its characterized in that: the transmission balls 6 can be arranged in the movable fluted disc grooves 301 of the movable fluted disc 3 in any one of uniformly distributed distribution, non-uniformly distributed distribution and close-packed distribution.
Examples
As shown in figure 1, a combined gear reducer with adjustable clearance is designed for certain application occasions, and the overall size of the combined gear reducer is 70mm in outer diameter and 61.1mm in total length; the track on the left side of the combined tooth track piece 7 is a cycloid track, and the fixed teeth on the peripheral side of the combined tooth fixed teeth 8 are string gears; the models of the four deep groove ball bearings 132 and 133 are 6200; the model of the deep groove ball bearing 131 is 688 open; the cross roller bearing 12 is model XRU2012UUCC0P 5; the theoretical parameters of the oscillating and fixed gear transmissions are shown in table 1.
TABLE 1 structural theory parameter table
The working principle of the invention is as follows: when the present invention is used, taking the above-mentioned embodiment as an example, the input shaft 1 is rotated, and the eccentric shaft section 102 thereon will drive the combined toothed orbital member 7 to revolve around the axis of the input shaft 1, so as to push the driving steel ball 6 to move along the cycloid raceway of the combined toothed orbital member 7, and since the movable toothed disc 3 is fixed, the combined toothed orbital member 7 and the input shaft 1 rotate in opposite directions, and the reduction ratio is cycloid wave number 49; meanwhile, the string fixing teeth on the peripheral side of the combined tooth fixing tooth piece 7 and the string fixing teeth on the inner side of the second shell 9 are in meshing transmission at the same transmission ratio; the composite-teeth fixing tooth member 8 rotates, and the composite-teeth fixing tooth groove 803 on the right side thereof carries the constant velocity balls 11 to rotate, thereby rotating the output shaft 10. Because the reduction ratio of the cycloidal raceway transmission on the left side of the combined tooth track part 7 and the reduction ratio of the fixed tooth transmission on the peripheral side of the combined tooth fixed tooth part 8 are both 49, the movable teeth and the fixed teeth are in composite transmission, the meshing area is increased, and the bearing capacity is improved. Meanwhile, the side surface is subjected to stepless gap adjustment by a gap adjustment structure, so that the side gap is eliminated, and the transmission precision, the bearing capacity and the transmission stability are improved.
Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides an adjustable clearance's combination tooth reduction gear which characterized in that: the device comprises a first shell, a second shell, an input shaft, an output shaft, a clamp spring, a movable fluted disc, an adjusting block, transmission balls, a combined tooth track piece, a combined tooth fixing tooth piece, constant-speed balls, a crossed roller bearing, a first deep groove ball bearing, a second deep groove ball bearing and a third deep groove ball bearing;
the first shell and the second shell are both of circular structures, the adjusting block, the movable fluted disc, the combined tooth track piece and the combined tooth fixing tooth piece are all circular structures with through holes arranged in the middle, the adjusting block, the movable fluted disc, the combined tooth track piece and the combined tooth fixing tooth piece are arranged inside the first shell and the second shell, and the input shaft sequentially penetrates through the adjusting block, the first shell, the movable fluted disc, the combined tooth track piece and the combined tooth fixing tooth piece and then is connected with the output shaft;
the first shell is fixedly connected with the second shell; the inner wall of the first shell comprises a threaded portion and a smooth portion, the top and the bottom of the smooth portion are respectively provided with a slide way, the second shell comprises a first circular portion and a second circular portion, the diameter of the first circular portion is smaller than that of the second circular portion, and internal fixed teeth are arranged inside the first circular portion;
the outer surface of the adjusting block comprises a first step for guiding and a second step in threaded connection with the first shell, the diameter of the first step is smaller than that of the second step, the outer surface of the first step is a smooth plane, an external thread matched with the threaded portion of the first shell is arranged on the outer surface of the second step, the outer surface of the first step of the adjusting block is abutted against the first side face of the movable fluted disc, the adjusting block and the first shell form a gap adjusting structure, and the gap adjusting structure can be used for adjusting the position of the movable fluted disc by adjusting the depth of the external thread of the second step of the adjusting block screwed into the threaded portion of the first shell;
the top and the bottom of the movable fluted disc are respectively provided with a rectangular tangent plane for limiting, the rectangular tangent planes at the top and the bottom of the movable fluted disc are matched with the slide way in the first shell, the second side surface of the movable fluted disc is matched with the combined tooth track piece, a plurality of movable fluted disc grooves are uniformly arranged on the circumference of the movable fluted disc, and a transmission ball is fixedly arranged in each movable fluted disc groove of the movable fluted disc;
the combined tooth track piece and the combined tooth fixing tooth piece are fixedly installed to form combined teeth, and the circumference of the side surface of the combined tooth track piece is provided with a wavy track which is matched with the movable tooth disc to install the transmission ball; the outer circumference of the combined tooth fixing tooth piece is provided with wavy fixing teeth, the outer teeth of the wavy fixing teeth on the circumferential side of the combined tooth fixing tooth piece are meshed with the internal fixing teeth of the second shell, and the circumference of the side surface of the combined tooth fixing tooth piece is uniformly provided with a plurality of grooves; the wavy fixed teeth of the combined tooth fixed tooth piece are matched with the fixed teeth in the second shell;
the input shaft comprises a first end, an eccentric shaft section and a second end, the first end of the input shaft is hinged to an inner hole of a movable toothed disc of the movable toothed disc through a bearing, the combined tooth fixing toothed piece is hinged to the eccentric shaft section of the input shaft through a bearing, and the second end of the input shaft is matched with an inner hole of an output shaft of the output shaft through a bearing;
the output shaft comprises a circular ring part arranged on the first side and a boss arranged on the second side, the circular ring part on the first side of the output shaft is provided with grooves, each groove on the first side of the output shaft and the groove of the combined tooth fixed tooth part are fixedly provided with a constant-speed ball, and the boss on the second side of the output shaft is matched with an inner ring of the crossed roller bearing;
when the combined tooth orbit component works, the input shaft is rotated, the eccentric shaft section of the input shaft drives the combined tooth orbit component to revolve around the axis of the input shaft, so that the transmission balls are pushed to move along the wavy orbit of the combined tooth orbit component, the combined tooth orbit component and the input shaft rotate in opposite directions, and the reduction ratio of the combined tooth orbit component and the input shaft is the cycloid wave number of the wavy orbit; meanwhile, the fixed teeth on the peripheral side of the combined tooth fixed gear and the fixed teeth on the inner side of the second shell are in meshing transmission at the same transmission ratio; the fixed tooth part of the combined teeth rotates, and the grooves on the side surfaces of the fixed tooth part can drive the constant-speed balls to rotate, so that the output shaft is driven to rotate.
2. The adjustable-gap combination gear reducer according to claim 1, wherein: the first end of the input shaft is hinged to the inner hole of the movable fluted disc through two first deep groove ball bearings; the combined tooth fixing tooth piece is hinged to the eccentric shaft section of the input shaft through two second deep groove ball bearings; and a third deep groove ball bearing is fixedly installed at the second end of the input shaft, the outer ring of the third deep groove ball bearing is matched with the inner hole of the output shaft, and one side of the first deep groove ball bearing in the inner hole of the movable toothed disc is fixed through a clamp spring.
3. The adjustable-gap combination gear reducer according to claim 1, wherein: threaded holes are uniformly formed in the circumference of the boss on the second side of the output shaft, the threaded holes of the output shaft are fixedly installed with the crossed roller bearings through screws, and the crossed roller bearings are fixedly installed at the right threaded holes of the second shell through screws.
4. The adjustable-gap combination gear reducer according to claim 1, wherein: the combined tooth track piece and the combined tooth fixing tooth piece are fixedly installed into a combined tooth through positioning pins, and the combined tooth does not rotate relatively in the circumferential direction, so that synchronous transmission is realized.
5. The adjustable-gap combination gear reducer according to claim 1, wherein: the transmission balls are arranged in the movable fluted disc groove of the movable fluted disc in any one mode of uniform dispersion distribution, non-uniform dispersion distribution or close-packed distribution.
6. The adjustable-gap combination gear reducer according to claim 1, wherein: a plurality of mounting holes are formed in the circular side walls of the first shell and the second shell, and the first shell and the second shell are fixed together through the mounting pieces.
7. The adjustable-gap combination gear reducer according to claim 1, wherein: the combined tooth fixing tooth piece and the fixing teeth of the second shell are both string fixing teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110594154.8A CN113339463B (en) | 2021-05-28 | 2021-05-28 | Combined tooth speed reducer with adjustable clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110594154.8A CN113339463B (en) | 2021-05-28 | 2021-05-28 | Combined tooth speed reducer with adjustable clearance |
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| CN113339463A CN113339463A (en) | 2021-09-03 |
| CN113339463B true CN113339463B (en) | 2022-07-01 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5514045A (en) * | 1991-03-14 | 1996-05-07 | Synkinetics, Inc. | Speed converter with zero backlash |
| CN1115499C (en) * | 2001-08-06 | 2003-07-23 | 重庆大学 | Space cam-moving gear driver |
| JP2003172419A (en) * | 2001-12-10 | 2003-06-20 | Nsk Ltd | Ball type transmission |
| CN110513443B (en) * | 2019-08-16 | 2020-08-11 | 燕山大学 | Eccentric driving two-stage plane oscillating tooth speed reducer |
| CN112377579A (en) * | 2020-11-25 | 2021-02-19 | 河南烛龙高科技术有限公司 | Lightweight cycloid oscillating tooth speed reducer |
| CN112343972B (en) * | 2020-10-23 | 2023-06-09 | 燕山大学 | Movable tooth and fixed tooth compound transmission reducer without backlash |
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- 2021-05-28 CN CN202110594154.8A patent/CN113339463B/en active Active
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