CN201651170U - Gear transmission device - Google Patents
Gear transmission device Download PDFInfo
- Publication number
- CN201651170U CN201651170U CN2010201318574U CN201020131857U CN201651170U CN 201651170 U CN201651170 U CN 201651170U CN 2010201318574 U CN2010201318574 U CN 2010201318574U CN 201020131857 U CN201020131857 U CN 201020131857U CN 201651170 U CN201651170 U CN 201651170U
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- CN
- China
- Prior art keywords
- gear
- shaft
- gear shaft
- output
- eccentric
- 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 discloses a gear transmission device capable of adjusting clearance between gears very conveniently. The gear transmission device comprises a gearbox; an input gear shaft, an output shaft and at least one counter gear shaft are arranged in the gearbox; a transmission gear is arranged on the counter gear shaft; an output gear is arranged on the output shaft; the input gear shaft is linked with the output shaft through a body gear of the input gear shaft, a body gear on the counter gear shaft, the transmission gear and the output gear on the output shaft; the input gear shaft and the counter gear shaft are arranged in an eccentric sleeve; and both ends of the eccentric sleeve are supported on the gearbox. By adopting the gear transmission device, distances between counter gear shafts, the counter gear shaft and the input gear shaft, as well as the counter gear shaft and the output shaft can be changed conveniently, so the transmission clearance caused by gear processing and assembly errors can be recovered, and clearance caused by abrasion in the use process can be compensated; therefore, the accuracy requirements to gear processing can be relaxed, the manufacture cost is lowered, and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of transmission device, refers more particularly to a kind of gear drive.
Background technique
As everyone knows, error is difficult to avoid in the processing of gear and assembling, so just make gear excesssive gap and too small problem in the engagement of reality, occur, in transmission process, the failure mode that causes gears such as break of gear tooth, tooth surface abrasion, thereby reduced the working life of gear, increased cost of production.Traditional solution is to improve processing and assembly precision.But this method can increase the fabricating cost of gear greatly, and, can't overcome because the problem that the inter-lobe clearance that causes of wearing and tearing increases in the using process, thereby head it off is fundamentally cured the symptoms, not the disease.
The model utility content
Technical problem to be solved in the utility model is: a kind of gear drive that can adjust inter-lobe clearance easily is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of gear drive, comprise: gear-box, be provided with input gear shaft and output shaft and at least one intermediate gear shaft in the gear-box, also be provided with driving gear on the intermediate gear shaft, output shaft is provided with output gear, the input gear shaft is by its body gear, body gear and driving gear on the intermediate gear shaft, and output gear on the output shaft and output shaft interlock, described input gear shaft and all intermediate gear shafts all are arranged in the eccentric bushing, and the two ends of eccentric bushing all are bearing on the gear-box.
Described eccentric bushing comprises eccentric sleeve body, the middle part of sleeve body offers meets the tooth gap, the two ends of sleeve body are respectively arranged with the cylindrical shaft bearing, a bearing support therein is provided with positioning disk, positioning disk is provided with several arc bolt via holes and several eccentric adjustment holes of circumferential distribution, and all arc bolt via holes and eccentric adjustment hole distribute with one heart with the center line of bearing support; The body gear of described intermediate gear shaft and input gear shaft stretches out the tooth gap with respective gears from meeting of eccentric bushing and meshes.
The beneficial effects of the utility model are: the utility model change between the intermediate gear shaft by the eccentric bushing that intermediate gear shaft and input gear shaft rotate to be installed and intermediate gear shaft and input gear shaft and output shaft between wheelbase, to remedy the drive gap that Gear Processing and assembly error produce, and the wearing and tearing that cause in the using process are carried out gap compensation, so just can relax the required precision of Gear Processing, thereby reduced manufacture cost, simultaneously, also improve the transmission accuracy of gear, prolonged working life.In addition, two bearing positions of eccentric bushing are integral structure, greatly facilitate to regulate and precision control.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of eccentric bushing.
Fig. 3 is an A-A sectional structure schematic representation among Fig. 2.
Fig. 4 is a B-B sectional structure schematic representation among Fig. 2.
Fig. 5 is the perspective view of eccentric bushing.
Fig. 6 is a perspective view of the present utility model.
Among Fig. 1 to Fig. 6: 2, input gear shaft, 3, intermediate gear shaft, 4, output shaft, 5, driving gear, 6, eccentric bushing, 61, sleeve body, 62, meet the tooth gap, 63, bearing support, 64, positioning disk, 641, arc bolt via hole, 642, eccentric adjustment hole, 65, eccentric axis, 66, center line, 8, output gear.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As Fig. 1, shown in Figure 6, gear drive described in the utility model, comprise: a pair of eccentric bushing 6 and gear-box, be provided with input gear shaft 2 and output shaft 4, intermediate gear shaft 3 in the gear-box, input gear shaft 2 is provided with the body gear, on the intermediate gear shaft 3 except being provided with the body gear, also be provided with driving gear 5, output shaft 4 is provided with output gear 8, in order more clearly to reflect the drive mechanism between input gear shaft 2, intermediate gear shaft 3 and output shaft 4 threes, omitted gear-box among the figure; As Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, described eccentric bushing 6 comprises: eccentric sleeve body 61---eccentric axis 65 is with respect to center line 66 off-centre of bearing support 63, the middle part of sleeve body 61 offers meets tooth gap 62, the two ends of sleeve body 61 are respectively arranged with cylindrical shaft bearing 63, a bearing support 63 therein is provided with positioning disk 64, evenly be provided with several arc bolt via holes 641 and several eccentric adjustment holes 642 of circumferential distribution on the positioning disk 64, all arc bolt via holes 641 and eccentric adjustment hole 642 distribute with one heart with the center line 66 of bearing support 63; The bearing of input gear shaft 2 by its two ends of suit is arranged in the eccentric bushing 6, and intermediate gear shaft 3 is arranged in another eccentric bushing 6 by the bearing at its two ends of suit, and the two ends of two eccentric bushings 6 and output shaft 4 all are bearing on the gear-box; The body gear of input gear shaft 2 from meeting the tooth gap 62 of eccentric bushing 6 stretch out, with driving gear 5 engagement, the body gear of intermediate gear shaft 3 from meeting the tooth gap 62 of another eccentric bushing 6 stretch out, with output shaft 4 on output gear 8 engagements.During practical application, eccentric adjustment hole 642 can also be provided with tapped hole.
Adjustment process of the present utility model is: an end is provided with threaded regulating rod is screwed in the eccentric adjustment hole 642, pull regulating rod, make corresponding eccentric bushing 6 go to suitable angle, then, the arc bolt via hole 641 that passes on the positioning disk 64 with bolt matches with nut, and positioning disk 64 is tightened up on gear-box.
Claims (2)
1. gear drive, comprise: gear-box, be provided with input gear shaft, output shaft and at least one intermediate gear shaft in the gear-box, also be provided with driving gear on the intermediate gear shaft, output shaft is provided with output gear, the input gear shaft is by the body gear on its body gear, the intermediate gear shaft and output gear on driving gear and the output shaft and output shaft interlock, it is characterized in that: described input gear shaft and all intermediate gear shafts all are arranged in the eccentric bushing, and the two ends of eccentric bushing all are bearing on the gear-box.
2. gear drive as claimed in claim 1, it is characterized in that: described eccentric bushing comprises eccentric sleeve body, the middle part of sleeve body offers meets the tooth gap, the two ends of sleeve body are respectively arranged with the cylindrical shaft bearing, a bearing support therein is provided with positioning disk, positioning disk is provided with several arc bolt via holes and several eccentric adjustment holes of circumferential distribution, and all arc bolt via holes and eccentric adjustment hole distribute with one heart with the center line of bearing support; The body gear of described intermediate gear shaft and input gear shaft stretches out the tooth gap with respective gears from meeting of eccentric bushing and meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201318574U CN201651170U (en) | 2010-03-08 | 2010-03-08 | Gear transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201318574U CN201651170U (en) | 2010-03-08 | 2010-03-08 | Gear transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651170U true CN201651170U (en) | 2010-11-24 |
Family
ID=43116406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201318574U Expired - Fee Related CN201651170U (en) | 2010-03-08 | 2010-03-08 | Gear transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201651170U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799061A (en) * | 2010-03-08 | 2010-08-11 | 张家港金凯达机械有限公司 | Gear transmission device |
| CN102734390A (en) * | 2012-07-02 | 2012-10-17 | 江阴凯迈机械有限公司 | Gap-adjustable slewing drive device |
-
2010
- 2010-03-08 CN CN2010201318574U patent/CN201651170U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799061A (en) * | 2010-03-08 | 2010-08-11 | 张家港金凯达机械有限公司 | Gear transmission device |
| CN102734390A (en) * | 2012-07-02 | 2012-10-17 | 江阴凯迈机械有限公司 | Gap-adjustable slewing drive device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Cai Xiang Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20110308 |