CN2656077Y - Double gear wheel backlash speed reducing drive structure - Google Patents
Double gear wheel backlash speed reducing drive structure Download PDFInfo
- Publication number
- CN2656077Y CN2656077Y CN 03278064 CN03278064U CN2656077Y CN 2656077 Y CN2656077 Y CN 2656077Y CN 03278064 CN03278064 CN 03278064 CN 03278064 U CN03278064 U CN 03278064U CN 2656077 Y CN2656077 Y CN 2656077Y
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Abstract
The utility model discloses a double-gear gap removing and deceleration drive structure, belonging to the mechanical processing device art, comprising a drive gear (1) and a driven gear (2), wherein the drive gear (1) is composed of a first drive gear (1-a) and a second drive gear (1-b) which have the same gear number and are equipped with end face gears which can be mutually engaged, the end face gears of the first drive gear (1-a) and the second drive gear (1-b) both are mutually engaged through a connection piece (4) of a disc plate (3), the first drive gear (1-a) and the second drive gear (1-b) are respectively engaged with the driven gear (2), mainly characterized in that the outer circle gear number of the first drive gear (1-a) and the second drive gear (1-b) and the end face gear number have no common divisors. The utility model solves the problem that the prior art has gaps in the gear drive, thereby the vibration and noise are generated, which affects the process accuracy or even leads to the processed part out of use and the like.
Description
Technical field
The utility model relates to the structure of a kind of pair of gear clearance elimination deceleration transmission, is applicable to the deceleration transmission system to the Digit Control Machine Tool of drive gap sensitivity.Belong to the machining equipment technology.
Background technology
General traditional gear drive, always gapped existence when interrupted cut and forward and reverse motion, will inevitably produce vibration and noise, causes the precision step-down, and the quality of processing parts descends, even causes resonance and can't process.Thereby the gear-driven crack that disappears just becomes an important techniques requirement to the Digit Control Machine Tool of drive gap sensitivity.
Summary of the invention
The purpose of this utility model is to provide a kind of structure that can effectively eliminate two gear clearance elimination deceleration transmission in gear drive gap, to overcome the deficiency of prior art, in order to satisfy the specification requirement to the Digit Control Machine Tool of drive gap sensitivity.
Realize that the technical scheme that the purpose of this utility model is taked is, a kind of structure that is applicable to two gear clearance elimination deceleration transmission of the Digit Control Machine Tool of drive gap sensitivity, have driving gear and driven gear, its improvement is: that driving gear is equated by the number of teeth and have can intermeshing end face tooth first driving gear and second driving gear form, be in the same place and said first driving gear makes both end face teeth be meshing with each other with second driving gear by the connector that has the dish spring, and said first driving gear and second driving gear are meshed with driven gear respectively; And there are not common divisor between the two in the cylindrical number of teeth of first driving gear and second driving gear and its end face number of teeth.
Can understand by above given technical scheme, the utility model is the preload by spring force, make two driving gears be meshed all the time with the tooth both sides of driven gear respectively, even gear has wearing and tearing, also owing to the effect of spring force is arranged and still can gappedly not exist, and reach the purpose of automatic anti-backlash.More than given be basic technology scheme of the present utility model, the C shaft gear that goes for the five-axle linkage machining tool crack transmission that disappears.
In order to satisfy the specification requirement of Digit Control Machine Tool such as the gear clearance elimination transmission of five-axle linkage gantry CNC milling machine A axle, the utility model has been done following further improvement to above-mentioned basic technology scheme.Said first driving gear and second driving gear are by positioning sleeve relative positioning and fixedly connected by dish spring and connecting piece; Driven gear is made up of first driven gear shaft and second driven gear that the number of teeth equates, and first driving gear is meshed with second driven gear, and second driving gear is meshed with first driven gear shaft; And on first driven gear shaft, be fixed with first idler gear, and second driven gear and second idler gear are fixedly connected and kink on first driven gear shaft, and the number of teeth of first idler gear and second idler gear equates and can misplace relatively, constitutes two gear clearance elimination deceleration transmission chain structures thereby drive extreme gear by the multi-stage speed-reducing gear pair then.
And said connector is a threaded connector, or two has the minor axis of screw thread and the connector that nut is formed.And said by the end face tooth be meshing with each other together first driving gear and the supporting of second driving gear, be by with first driving gear or second driving gear is fixedly connected or the rotating shaft of integral production and by an end bearing; Or respectively by with first driving gear and the rotating shaft fixedly connected or integral production of second driving gear and positioning sleeve and by two supports.
The utility model technique scheme implemented in full the back its had can effectively eliminate the gear drive gap, when interrupted cut or forward and reverse motion, can not produce vibration and noise, characteristics such as part to be processed precision height, quality are good are conspicuous.
Description of drawings
Fig. 1 is the main pseudosection of a kind of structure of the present utility model;
Fig. 2 is the main pseudosection of another kind of structure of the present utility model;
Fig. 3 is A-A and the B-B cutaway view of Fig. 1, also is gear interlocking pattern figure simultaneously.P shown in the figure
1Be the application point of pretightning force, P
2Application point for pretightning force+driving force.
The specific embodiment
Can understand structure of the present utility model by above-listed accompanying drawing,, will and realize that the technical scheme of purpose is more clear the purpose of this utility model below in conjunction with the description of accompanying drawing by the specific embodiment.
One of specific embodiment please be joined and be read accompanying drawing 1.A kind of structure that is applicable to two gear clearance elimination deceleration transmission of the Digit Control Machine Tool of drive gap sensitivity, have driving gear 1 and driven gear 2, that driving gear 1 is equated by the number of teeth and have can intermeshing end face tooth the first driving gear 1-a and the second driving gear 1-b form, be in the same place and the connector 4 that the said first driving gear 1-a and the second driving gear 1-b minor axis 4-1 with two head threads by having dish spring 3 and nut 4-2 are formed makes both end face teeth be meshing with each other, and the said first driving gear 1-a and the second driving gear 1-b are meshed with driven gear 2 respectively; And there are not common divisor between the two in the cylindrical number of teeth of the first driving gear 1-a and the second driving gear 1-b and its end face number of teeth.And said by the end face tooth be meshing with each other together the first driving gear 1-a and the supporting of the second driving gear 1-b, be by with the rotating shaft 5 of the first driving gear 1-a integral production by an end bearing.The utility model that one of this specific embodiment is prepared is a kind of structure that is specially adapted to two gear clearance elimination deceleration transmission of five-axle linkage machining tool C axle.
Two of the specific embodiment please be joined and be read attached Fig. 1 and 2.Except in the central blind hole of the first driving gear 1-a, being provided with positioning sleeve 5-1, and on positioning sleeve 5-1, be set with the second driving gear 1-b, thereby make both relative positionings, and both are fixedly connected by dish spring 3 and threaded connector 4 by positioning sleeve 5-1; Driven gear 2 is made up of the first driven gear shaft 2-a and the second driven gear 2-b that the number of teeth equates, and the first driving gear 1-a is meshed with the second driven gear 2-b, and the second driving gear 1-b is meshed with the first driven gear shaft 2-a; And on the first driven gear shaft 2-a, the first idler gear 3-a is arranged by the spline binding, and the second driven gear 2-b and the binding of the second idler gear 3-b key and kink are on the first driven gear rotating shaft 2-a, and the number of teeth of the first idler gear 3-a and the second idler gear 3-b equates, and can link and dislocation relatively by spline, constitute two gear clearance elimination deceleration transmission chain structures thereby drive extreme gear by the multi-stage speed-reducing gear pair then; And said by the end face tooth be meshing with each other together the first driving gear 1-a and the supporting of the second driving gear 1-b, be respectively by with the fixedly connected rotating shaft 5 of the first driving gear 1-a and positioning sleeve 5-1 and by beyond the two supports, other is all identical with one of specific embodiment.Two prepared the utility model of this specific embodiment are a kind of structures that is specially adapted to two gear clearance elimination deceleration transmission of five-axle linkage machining tool A axle.
Operation principle of the present utility model is (please join and read accompanying drawing 1), and servomotor reaches the first driving gear 1-a through harmonic speed reducer with motion, and the second driving gear 1-b links to each other with the first driving gear 1-a by the end face tooth.Because the radial teeth (outer knuckle-tooth) of these two gears is to process together under the constraint of positioning sleeve 5-1 and connector 4 in end face tooth engagement back, a gear is meshed with driven gear 2 so can regard the first driving gear 1-a and the second driving gear 1-b as, and at this moment this is between the gear pair being gapped existence.And when practical set, unclamp nut 4-2 and dish spring 3, and the second driving gear 1-b is moved to right, throw off the engagement of end face tooth, be meshed with the end face tooth of the first driving gear 1-a again again after then the second driving gear 1-b being rotated to an angle.Because no any common divisor between radially (cylindrical) number of teeth of the first driving gear 1-a and the second driving gear 1-b and its end face number of teeth, so any engagement again of end face tooth, the angle that makes radial teeth stagger can be not the same.By selecting, can find a position that the mesh tooth face of the first driving gear 1-a and the second driving gear 1-b was contacted (please join and read accompanying drawing 3) with driven gear 2 different flanks respectively, make the end face tooth be in a good engagement (be engaged on certain one side and certain depth of engagement is arranged) again simultaneously.At this moment, suitable again fastening nut 4-2 makes 3 pairs of engagements of dish spring give certain pretightning force.The gear driving pair that such first driving gear 1-a, the second driving gear 1-b and driven gear 2 formed just can be eliminated the drive gap of flank.Even having grown, the time produces wearing and tearing, but because the existence of the active force of dish spring 3, flank still can not produce drive gap.
And the structure shown in the accompanying drawing 2, its crack principle that disappears is the same, only is that structure is slightly different, the structure difference is shown in its structure and the accompanying drawing 1: the first driving gear 1-a and the second driving gear 1-b are two supports, and structure shown in the accompanying drawing 1 is an end bearing; The first driven gear shaft 2-a and the second driven gear 2-b that are meshed with the first driving gear 1-a and the second driving gear 1-b, be empty mutually two cover reduction gearing of overlapping, no matter but how many gear pairs next stage also has, drive gap is therebetween all eliminated by above said technical measures.And the driven gear 2 of structure shown in the accompanying drawing 1 is the terminal travelling gear.
The scope of application of the present utility model, the restriction that not described by this specification.
Claims (4)
1, a kind of structure that is applicable to two gear clearance elimination deceleration transmission of the Digit Control Machine Tool of drive gap sensitivity, have driving gear (1) and driven gear (2), it is characterized in that: that driving gear (1) is equated by the number of teeth and have can intermeshing end face tooth first driving gear (1-a) and second driving gear (1-b) form, and said first driving gear (1-a) and second driving gear (1-b) make both end face teeth be meshing with each other together by the connector (4) that has dish spring (3), and said first driving gear (1-a) and second driving gear (1-b) are meshed with driven gear (2) respectively; And there are not common divisor between the two in the cylindrical number of teeth of first driving gear (1-a) and second driving gear (1-b) and its end face number of teeth.
2, the structure of according to claim 1 pair of gear clearance elimination deceleration transmission is characterized in that: said first driving gear (1-a) and second driving gear (1-b) both by positioning sleeve (5-1) relative positioning and fixedly connected by dish spring (3) and connector (4); Driven gear (2) is made up of first driven gear shaft (2-a) and second driven gear (2-b) that the number of teeth equates, and first driving gear (1-a) is meshed with second driven gear (2-b), and second driving gear (1-b) is meshed with first driven gear shaft (2-a); And on first driven gear shaft (2-a), be fixed with first idler gear (3-a), and second driven gear (2-b) and second idler gear (3-b) are fixedly connected and kink on first driven gear shaft (2-a), the number of teeth of sign indicating number first idler gear (3-a) and second idler gear (3-b) equates and can misplace relatively, constitutes two gear clearance elimination deceleration transmission chain structures thereby drive extreme gear by the multi-stage speed-reducing gear pair then.
3, the structure of according to claim 1 and 2 pair of gear clearance elimination deceleration transmission is characterized in that: said connector (4) is a threaded connector, or two has the minor axis of screw thread and the connector that nut is formed.
4, the structure of according to claim 1 and 2 pair of gear clearance elimination deceleration transmission, it is characterized in that: said by the end face tooth be meshing with each other together first driving gear (1-a) and the supporting of second driving gear (1-b), be by with first driving gear (1-a) or second driving gear (1-b) is fixedly connected or the rotating shaft (5) of integral production and by an end bearing; Or respectively by with first driving gear (1-a) and second driving gear (1-b) rotating shaft fixedly connected or integral production (5) and positioning sleeve (5-1) and by two supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03278064 CN2656077Y (en) | 2003-08-27 | 2003-08-27 | Double gear wheel backlash speed reducing drive structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03278064 CN2656077Y (en) | 2003-08-27 | 2003-08-27 | Double gear wheel backlash speed reducing drive structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2656077Y true CN2656077Y (en) | 2004-11-17 |
Family
ID=34331937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03278064 Expired - Fee Related CN2656077Y (en) | 2003-08-27 | 2003-08-27 | Double gear wheel backlash speed reducing drive structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2656077Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720826A (en) * | 2012-07-04 | 2012-10-10 | 无锡桥联数控机床有限公司 | Backlash eliminating transmission structure of gearbox input shaft |
| CN102788143A (en) * | 2012-07-30 | 2012-11-21 | 邵文远 | Automatic gap eliminating servo reducing mechanism |
| CN103410951A (en) * | 2013-07-22 | 2013-11-27 | 江苏威和重工有限公司 | Motor transmission shaft fixing device |
| CN104589130A (en) * | 2015-02-02 | 2015-05-06 | 芜湖瑞精机床有限责任公司 | Clearance elimination gear device for upward and downward movement of power head of numerical control drilling machine |
| CN105397552A (en) * | 2015-12-02 | 2016-03-16 | 湖南中大创远数控装备有限公司 | Gear clearance eliminating transmission mechanism |
| CN108119642A (en) * | 2016-12-30 | 2018-06-05 | 上海丰禾精密机械有限公司 | For the fixed gear-driven tooth space eliminating mechanism of centre-to-centre spacing and its removing method |
| CN111372722A (en) * | 2017-12-22 | 2020-07-03 | 斗山机床株式会社 | Spindle drive device for machine tool |
-
2003
- 2003-08-27 CN CN 03278064 patent/CN2656077Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720826A (en) * | 2012-07-04 | 2012-10-10 | 无锡桥联数控机床有限公司 | Backlash eliminating transmission structure of gearbox input shaft |
| CN102788143A (en) * | 2012-07-30 | 2012-11-21 | 邵文远 | Automatic gap eliminating servo reducing mechanism |
| CN103410951A (en) * | 2013-07-22 | 2013-11-27 | 江苏威和重工有限公司 | Motor transmission shaft fixing device |
| CN104589130A (en) * | 2015-02-02 | 2015-05-06 | 芜湖瑞精机床有限责任公司 | Clearance elimination gear device for upward and downward movement of power head of numerical control drilling machine |
| CN105397552A (en) * | 2015-12-02 | 2016-03-16 | 湖南中大创远数控装备有限公司 | Gear clearance eliminating transmission mechanism |
| CN108119642A (en) * | 2016-12-30 | 2018-06-05 | 上海丰禾精密机械有限公司 | For the fixed gear-driven tooth space eliminating mechanism of centre-to-centre spacing and its removing method |
| CN111372722A (en) * | 2017-12-22 | 2020-07-03 | 斗山机床株式会社 | Spindle drive device for machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Shinri Machinery Co., Ltd. Assignor: Jiangsu Duoleng CNC Machine Tools Co., Ltd. Contract fulfillment period: 2007.12.20 to 2013.12.20 Contract record no.: 2008320000817 Denomination of utility model: Double gear wheel backlash speed reducing drive structure Granted publication date: 20041117 License type: Exclusive license Record date: 20081012 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.12.20 TO 2013.12.20; CHANGE OF CONTRACT Name of requester: JIANGSU XINRUI MACHINERY CO., LTD. Effective date: 20081012 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041117 Termination date: 20100827 |