CN201344251Y - Gear selector in gear case - Google Patents
Gear selector in gear case Download PDFInfo
- Publication number
- CN201344251Y CN201344251Y CNU2009203002060U CN200920300206U CN201344251Y CN 201344251 Y CN201344251 Y CN 201344251Y CN U2009203002060 U CNU2009203002060 U CN U2009203002060U CN 200920300206 U CN200920300206 U CN 200920300206U CN 201344251 Y CN201344251 Y CN 201344251Y
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- CN
- China
- Prior art keywords
- gear
- option stage
- connecting rod
- gear shaft
- selection device
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a speed regulator in a gear case, in particular to a gear selector applied in the gear case in a dynamic balance measuring instrument. The gear selector comprises a gear shaft, wherein two gears are sleeved on the gear shaft, and a driving selecting component sleeved on the gear shaft can move axially; the driving selecting component is positioned between two gears; a driven selecting component is fixed on each gear; a shifting fork which is fixed on a shifting fork rack is connected to the driving selecting component; a connecting rod is fixed on the shifting fork rack; the connecting rod is arranged on a supporting rack; and the connecting rod and the gear shaft are are arranged vertically; and an operation handle is externally connected to the connecting rod. The gear selector has the advantages of simple structure, smaller laying space, accurate transmission ratio, and convenient maintenance and installation, and solves the technical problems of complicated structure, large laying space, and inconvenient installation and maintenance of a gear selecting and shifting device in the prior art.
Description
Technical field
The utility model relates to the arrangements for speed regulation in a kind of gear-box, relates in particular to a kind of gear ratio selection device that is applied in the dynamic balancing machine associated gear case.
Background technique
It is very extensive that gear-box is used in existing mechanical equipment, selects in the gear-box on the input shaft and output shaft the gear matched of different moduluses, the number of teeth and velocity ratio to carry out transmission, thus the rotating speed of control output shaft.And corresponding to the selection of gear train, generally utilize moving up and down of breast wheel to select different gear trains to mesh more, as disclosed structure in the Chinese patent " single shifting fork axial four place gearshift mechanism (CN100348896) ", comprise input shaft, output shaft and jack shaft, input shaft is provided with driving gear, engagement cover, second gear driving gear and one grade of driving gear in turn along input direction, utilizes the intermediate gear that fixedly installs on the jack shaft to select the engaging gear of different shelves.This structure can realize the gear shift of many gears, but need select different engaging gears by jack shaft of increase, the structure more complicated, and it is cumbersome to calculate velocity ratio behind the increase breast wheel, and the arrangement space that needs is bigger, and it is inconvenient that maintenance and installation are all compared; And required manufacture cost is than higher.
Summary of the invention
It is smaller that the utility model mainly provides arrangement space a kind of simple in structure, required, and the velocity ratio convenience of calculation is safeguarded and gear selection device easy for installation; Solved the complex structure of existing in prior technology gear selection gearshift, required arrangement space is big, the technical problem of installation and maintenance inconvenience.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the gear selection device in a kind of gear-box, comprise gear shaft, on gear shaft, be socketed with two gears, be socketed with the active Option stage that can move vertically on the described gear shaft, described active Option stage is between two gears, on described gear, be fixed with driven Option stage, be connected with shift fork on the described active Option stage, described shift fork is fixed on the pressing fork rack, described pressing fork rack is supported on the connecting rod, connecting rod is arranged on the supporting frame, and described connecting rod and described gear shaft are arranged vertically, and connecting rod is circumscribed with operating grip.Initiatively Option stage can by the axial motion of active Option stage, be selected to mesh with different driven Option stages, thereby drive the gear of fixedlying connected with driven Option stage in the axial motion of gear shaft upper edge.Because initiatively Option stage is positioned on the gear shaft, has saved jack shaft, and initiatively Option stage is rotation synchronously with gear shaft, and directly the gear on the driven gear axle rotates.By the different gears on the selection gear shaft, thereby realized speed change.Of the present utility model simple in structure, transmission is accurate, because initiatively Option stage directly is socketed on the gear shaft, so installation and maintenance is convenient relatively, and has reduced cost, has saved the space.Initiatively Option stage is realized axial motion by shift fork.Shift fork is fixed on the pressing fork rack, pressing fork rack is supported on the connecting rod, along with the operating grip drivening rod on the actuating linkege rotates, thereby driving pressing fork rack and shift fork rotates, because connecting rod and gear shaft are orthogonal, the rotation of shift fork has driven the initiatively axial motion of Option stage, and the shift fork part-structure is simple, easy to operate, the rotating operation bar just can be selected gear.
As preferably, the outer surface of described active Option stage is a spline surface, offers groove on the circumferential surface of the centre of active Option stage, and described shift fork is positioned at groove.Be meshed with driven Option stage by spline, shift fork can be placed in it thereby groove is set on the circumferential surface of centre, drive active Option stage moves along the axial direction of gear shaft.
As more preferably, the groove both sides of described active Option stage are provided with dashpot.Dashpot be set in the both sides of groove be in order to prevent that shift fork from skidding off groove when shift fork drives initiatively Option stage stirring, can when selecting, carry out simultaneously a buffering make stir more convenient.
As preferably, described driven Option stage by dowel fixes on the end face of gear, described driven Option stage is an annular, and the internal diameter of annular is identical with the external diameter of active Option stage, and the internal surface of driven Option stage is provided with the spline that is meshed with active Option stage external peripheral surface.The internal diameter of annular is meshed with Option stage external diameter initiatively by spline, owing to driven Option stage is fixed on the gear face, thereby has driven the rotation of gear.
As preferably, the external peripheral surface that joins with the active Option stage on the described gear shaft is a spline, and initiatively the internal surface of Option stage is meshed with the outer surface of gear shaft.The initiatively motion of Option stage on gear shaft can be by orbital groove being set on gear shaft, allowing the active Option stage move in orbital groove.The utility model adopts involute splines as engagement, simple in structure, easily manufactured, engagement validity height.
As preferably, described shift fork has two, two shift forks are positioned at the initiatively same diametric two ends of Option stage, described shift fork is fixed on the pressing fork rack, attachment hole and operating grip that connecting rod passes on the supporting frame join, pressing fork rack is supported on the connecting rod by pin, and described supporting frame is fixed on the casing.The shift fork symmetric arrangement makes pressing fork rack to rotate reposefully, can be rapidly with initiatively Option stage and driven Option stage mesh when stirring shift fork.This project organization is simple, drives pressing fork rack by rotating lind rod and rotates, and Option stage moves axially thereby drive initiatively, and this is easy to operate simple and direct.
Therefore, gear selection device in the gear-box of the present utility model has following advantage: utilize shift fork to stir initiatively Option stage, thereby meshing with driven Option stage, realization active Option stage selects different working gears, and then speed governing, jack shaft and intermediate gear have been saved, structure is simpler, has saved the space; Therefore maintenance and installation are all more convenient; And required manufacture cost is also lower.
Description of drawings:
Fig. 1 is the sectional view of the gear selection device in the gear-box of the present utility model.
Fig. 2 is the B-B sectional view in Fig. 1.
Embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
As illustrated in fig. 1 and 2, gear selection device in a kind of gear-box, comprise gear shaft 1, on gear shaft 1, be socketed with two gears 2 by rolling bearing, between two gears 2, be socketed with the active Option stage 3 of annular, gear shaft 1 is a spline with the outer surface that Option stage 3 initiatively joins, and initiatively the internal surface of Option stage 3 and gear shaft 1 match by spline.Outer surface at active Option stage 3 is provided with annular groove 4, respectively is provided with a dashpot 5 in the both sides of annular groove 4.In groove 4, be provided with on the diametric(al) that 6, two shift forks 6 of two shift forks are symmetrically distributed in Option stage 3 initiatively.Shift fork 6 is fixed on the pressing fork rack 7, and pressing fork rack 7 is socketed on the connecting rod 8, and the direction of connecting rod 8 is vertical with the direction of gear shaft 1, and connecting rod 8 can just penetrate the hole on the supporting frame 9, and supporting frame 9 is fixed on the casing 11 by screw 10.Pressing fork rack 7 is supported on the connecting rod 8 by pin 12.Connecting rod 8 is circumscribed with operating grip 13, and by the rotation of operating grip 13, drivening rod 8 rotates, and rotates thereby drive pressing fork rack 7.Respectively be provided with a driven Option stage 14 on two gears 2 and active Option stage 3 opposing end faces, driven Option stage 14 is fixed on the end face of gear 2 by pin 15 for annular.The internal diameter of driven Option stage 14 is identical with the external diameter of active Option stage 3, and initiatively the outer surface of Option stage 3 is a spline, and the internal surface of driven Option stage 14 matches by spline with the outer surface of active Option stage 3.
Working principle of the present utility model is as follows:
Be provided with gear shaft 1 in gear-box, a side of gear shaft 1 is provided with the output shaft 16 parallel with gear shaft 1, and by the operating grip 13 that is operatively connected connecting rod 8, drivening rod 8 rotates, and connecting rod 8 is fixed together with pressing fork rack 7, so pressing fork rack 7 rotates synchronously.Owing to be fixed with shift fork 6 on the pressing fork rack 7, shift fork 6 is plugged on initiatively Option stage 3, moves up or down by the feasible initiatively Option stage 3 of the drive of shift fork 6, thereby makes that initiatively Option stage 3 is meshed with driven Option stage 14.Owing to Option stage 3 initiatively along with gear shaft 1 rotates, after initiatively Option stage 3 meshes with driven Option stage 14, just driven respective gears 2 rotation on the driven Option stage 14, the gear of pairing mutually that the gear 2 rotation backs on the gear shaft 1 just drive on the output shaft 16 with its engagement rotates.When needs were selected another gear 2, repetitive operation handle 13 drove shift fork 6 and active Option stage 3 is selected another driven Option stages 14, thereby drove another gear 2 rotations, had selected different rotating speeds.
Claims (8)
1. the gear selection device in the gear-box, comprise gear shaft, on gear shaft, be socketed with two gears, it is characterized in that: be socketed with the active Option stage that can move vertically on the described gear shaft, described active Option stage is between two gears, on described gear, be fixed with driven Option stage, be connected with shift fork on the described active Option stage, described shift fork is fixed on the pressing fork rack, be fixed with connecting rod on the described pressing fork rack, connecting rod is arranged on the supporting frame, and described connecting rod and described gear shaft are arranged vertically, and connecting rod is circumscribed with operating grip.
2. the gear selection device in a kind of gear-box according to claim 1, it is characterized in that: the outer peripheral surface of described active Option stage is a spline surface, offers groove on the circumferential surface of the centre of active Option stage, described shift fork is positioned at groove.
3. the gear selection device in a kind of gear-box according to claim 2, it is characterized in that: the groove both sides of described active Option stage are provided with dashpot.
4. according to the gear selection device in claim 1 or the 2 or 3 described a kind of gear-boxes, it is characterized in that: described driven Option stage by dowel fixes on the end face of gear, described driven Option stage is an annular, the internal diameter of annular is identical with the external diameter of active Option stage, and the internal surface of driven Option stage is provided with the spline that is meshed with active Option stage external peripheral surface.
5. according to the gear selection device in claim 1 or the 2 or 3 described a kind of gear-boxes, it is characterized in that: the external peripheral surface that is meshed with the active Option stage on the described gear shaft is a spline surface, and initiatively the internal surface of Option stage is meshed with the outer surface of gear shaft.
6. the gear selection device in a kind of gear-box according to claim 4, it is characterized in that: the external peripheral surface that is meshed with the active Option stage on the described gear shaft is a spline surface, initiatively the internal surface of Option stage is meshed with the outer surface of gear shaft.
7. according to the gear selection device in claim 1 or the 2 or 3 described a kind of gear-boxes, it is characterized in that: described shift fork has two, two shift forks are positioned at the initiatively same diametric two ends of Option stage, described shift fork by dowel fixes on pressing fork rack, attachment hole and operating grip that connecting rod passes on the supporting frame join, on connecting rod, described supporting frame is fixed on the casing pressing fork rack by dowel fixes.
8. the gear selection device in a kind of gear-box according to claim 6, it is characterized in that: described shift fork has two, two shift forks are positioned at the initiatively same diametric two ends of Option stage, described shift fork by dowel fixes on pressing fork rack, attachment hole and operating grip that connecting rod passes on the supporting frame join, on connecting rod, described supporting frame is fixed on the casing pressing fork rack by dowel fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203002060U CN201344251Y (en) | 2009-01-13 | 2009-01-13 | Gear selector in gear case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009203002060U CN201344251Y (en) | 2009-01-13 | 2009-01-13 | Gear selector in gear case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201344251Y true CN201344251Y (en) | 2009-11-11 |
Family
ID=41275832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009203002060U Expired - Fee Related CN201344251Y (en) | 2009-01-13 | 2009-01-13 | Gear selector in gear case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201344251Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244615A (en) * | 2013-05-15 | 2013-08-14 | 南京金腾重载齿轮箱有限公司 | Gear box for dynamic balancing machine |
| CN103671805A (en) * | 2012-09-18 | 2014-03-26 | 常州市瑞泰工程机械有限公司 | Power transmission case |
-
2009
- 2009-01-13 CN CNU2009203002060U patent/CN201344251Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671805A (en) * | 2012-09-18 | 2014-03-26 | 常州市瑞泰工程机械有限公司 | Power transmission case |
| CN103671805B (en) * | 2012-09-18 | 2017-08-25 | 常州市瑞泰工程机械有限公司 | Power transmission box |
| CN103244615A (en) * | 2013-05-15 | 2013-08-14 | 南京金腾重载齿轮箱有限公司 | Gear box for dynamic balancing machine |
| CN103244615B (en) * | 2013-05-15 | 2015-07-22 | 南京金腾重载齿轮箱有限公司 | Gear box for dynamic balancing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20170113 |