CN203857000U - Gear rack and cam turnplate joint transmission mechanism - Google Patents
Gear rack and cam turnplate joint transmission mechanism Download PDFInfo
- Publication number
- CN203857000U CN203857000U CN201420274224.7U CN201420274224U CN203857000U CN 203857000 U CN203857000 U CN 203857000U CN 201420274224 U CN201420274224 U CN 201420274224U CN 203857000 U CN203857000 U CN 203857000U
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- Prior art keywords
- gear
- cam
- cylindrical
- rotary disk
- shaft
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- Expired - Fee Related
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- Gear Transmission (AREA)
- Gears, Cams (AREA)
Abstract
A gear rack and cam turnplate joint transmission mechanism comprises a cylindrical cam, a middle rotating shaft, a rotating disk, cylindrical rollers, gears and racks. A central hole is arranged in the position of the axis of the cylindrical cam, a cylindrical cam key slot used for power inputting is arranged in the hole, the cylindrical cam is meshed with the cylindrical rollers circumferentially distributed on the rotating disk matched on the middle rotating shaft, the gears connected through splines are arranged at the ends of the middle rotating shaft, and the gears are meshed with the racks. The gear rack and cam turnplate joint transmission mechanism has the advantages of simple and easy implementation, compact structure, precision in transmission, easy processing, low cost and application to low-speed overloading.
Description
Technical field
The utility model relates to a kind of mechanical transmission, particularly relates to a kind of gear rack and combines driving mechanism with cam turntable.
Background technique
Retarder is as mechanical transmission component, and improving constantly of its technical merit is most important to the development of mechanical industry.The technical merit of China's retarder is far away from American-European countries at present, and existing traditional retarder is mostly gear reducer, plane table thermoconductivity meter, worm type of reduction gearing etc.Gear reducer transmission is smaller, while adopting Multi-stage transmission, causes efficiency further to decline, and under case of heavy load, flank of tooth impact force is larger simultaneously, shakes and wear and tear corresponding larger in engagement process.Turbine and worm retarder can meet the demands on velocity ratio, stable drive simultaneously, but its volume is larger, between turbine and worm screw, is sliding friction, and under high-speed overload, wearing and tearing and frictional heating are comparatively serious, cause wearing and tearing large, also seriously reduce transmission efficiency simultaneously; And other common retarder is as high in transmission accuracies such as plane table thermoconductivity meter, planet-cycloid reducer, harmonic speed reducers, but that the moment of torsion of its transmission is difficult for is excessive, is not suitable for severe duty.
Summary of the invention
The purpose of this utility model is to provide a kind of gear rack and combines driving mechanism with cam turntable, and that this mechanism has advantages of is simple, compact structure, transmission precision, be easy to processing, cheap and be applicable to low-speed heave-load.
For achieving the above object, the technological scheme that the utility model adopts is:
Comprise cylindrical cam, shaft, rotary disk, cylindrical roller, gear, tooth bar; In cylindrical cam axle center, place is provided with center hole, in hole, be provided with the cylindrical cam keyway for power input, cylindrical cam and the rotary disk coordinating on shaft circumferentially distribute cylindrical roller be meshed, be provided with the gear by spline joint in shaft end, wheel and rack engagement simultaneously.
Be divided into double-stage driving, the transmission of cylindrical cam and rotary disk is one-level transmission, and wheel and rack engagement driving is secondary transmission.
By technique scheme, described rotary disk is evenly equipped with some cycle holes that are connected with cylindrical roller in outer ring.
By technique scheme, on described gear, there is spline keyway.
By technique scheme, described shaft axle body is provided with the shaft keyway being connected with rotary disk.
By technique scheme, described shaft one end is provided with the spline one being connected with gear.
By technique scheme, described shaft two ends are provided with the spline two and the spline three that are connected with gear, are connected respectively with gear.
By technique scheme, on described rotary disk, there is inner ring hole, in order to alleviate rotary disk quality and to save material.
The utility model has been owing to having adopted technique scheme, has advantages of simple, compact structure, transmission precision, is easy to processing, cheap and be applicable to low-speed heave-load.
Brief description of the drawings
Fig. 1 is the structure front elevational schematic of the utility model embodiment one.
Fig. 2 is the structure schematic top plan view of the utility model embodiment one.
Fig. 3 is the structure schematic side view of the utility model embodiment one.
Fig. 4 is the structural representation of the shaft of the utility model embodiment one.
Fig. 5 is the structure front elevational schematic of the utility model embodiment two.
Fig. 6 is the structure schematic top plan view of the utility model embodiment two.
Fig. 7 is the structure schematic side view of the utility model embodiment two.
Fig. 8 is the structural representation of the shaft of the utility model embodiment two.
In figure: 1. single rack, 2. rotary disk, 3. center hole, 4. cylindrical cam keyway, 5. cylindrical cam, 6. cylindrical roller, 7. cycle hole, 8. inner ring hole, 9. gear, 10. spline keyway, 11. shaft keyways, 12. shafts, 13. splines one, 14. left side tooth bars, 15. left side gear, 16. right side tooth bars, 17. right side gear, 18. spline two, 19. splines three.
Embodiment
mode of execution one
As shown in Figure 1, Figure 2, Figure 3, Figure 4, comprise single rack 1, rotary disk 2, center hole 3, cylindrical cam keyway 4, cylindrical cam 5, cylindrical roller 6, cycle hole 7, inner ring hole 8, gear 9, spline keyway 10, shaft keyway 11, shaft 12, spline 1, cylindrical cam 5 axle center places are provided with center hole 3, in center hole 3, be provided with the cylindrical cam keyway 4 for power input, cylindrical cam 5 axis are vertical with rotary disk 2 axis, the equally distributed some cylindrical rollers 6 of rotary disk 2 circumferencial direction, cylindrical roller 6 is connected with rotary disk 2 by angular contact bearing, cylindrical roller 6 curved surfaces engage with the conjugation that cylindrical cam 5 contoured surfaces are two sides, space curved surface, in the middle of shaft 12, being provided with shaft keyway 11 coordinates with rotary disk 2, be provided with spline keyway 10 in gear 9 centers is connected with shaft 12 simultaneously, gear 9 engages with tooth bar 1, angular contact bearing can fixed cylinder roller 6 axial directions displacement, but do not affect the circumferential rotation of cylindrical roller 6, thereby cylindrical roller 6 on the contoured surface of rotary disk 2 diriven motion for roll, friction is therebetween rolling friction, can greatly reduce friction, increase transmission efficiency.
Rotary disk 2 outer rings are evenly equipped with some cycle holes that are connected with cylindrical roller 7 and in order to alleviate rotary disk quality and to save the inner ring hole 8 of material.
The utility model is in the time of work, first motor by with the center hole 3 at cylindrical cam 5 axle center places on cylindrical cam keyway 4 power is inputted, drive the rotary disk 2 engaging with cylindrical cam 5 to rotate, in the middle of shaft, be provided with shaft keyway 11 and coordinate with rotary disk 2, drive shaft 12 to rotate, shaft 12 is connected with gear 9 with gear 9 center spline keyways 10, thereby driven gear 9 rotates, gear 9 engages with tooth bar 1, and both produce relative movement, i.e. the motion with carry-over bar 1.
mode of execution two
As shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8, comprise left side tooth bar 14, rotary disk 2, center hole 3, left side gear 15, right side tooth bar 16, cylindrical roller 6, cycle hole 7, inner ring hole 8, right side gear 17, spline keyway 10, spline 2 18, shaft 12, spline 3 19, cylindrical cam 5, cylindrical cam keyway 4.Cylindrical cam 5 axle center places are provided with center hole 3, in center hole 3, be provided with the cylindrical cam keyway 4 for power input, cylindrical cam 5 axis are vertical with rotary disk 2 axis, the equally distributed some cylindrical rollers 6 of rotary disk 2 circumferencial direction, cylindrical roller 6 is connected with rotary disk 2 by angular contact bearing, cylindrical roller 6 curved surfaces engage with the conjugation that cylindrical cam 5 contoured surfaces are two sides, space curved surface, rotary disk 2 coordinates with shaft keyway 4, be respectively equipped with spline 2 18 at shaft 12 two ends is connected with left side gear 15 and right side gear 17 with spline 3 19 simultaneously, left side gear 15 and right side gear 17 engage with left side tooth bar 14 and right side tooth bar 16 respectively, angular contact bearing can fixed cylinder roller 6 axial directions displacement, but do not affect the circumferential rotation of cylindrical roller 6.Thereby cylindrical roller 6 on the contoured surface of arc-shaped rack and cylindrical cam 5 diriven motion for roll, friction is therebetween rolling friction, can greatly reduce friction, increase transmission efficiency.
Rotary disk 2 outer rings are evenly equipped with some cycle holes that are connected with cylindrical roller 7 and in order to alleviate rotary disk quality and to save the inner ring hole 8 of material.
The utility model is in the time of work, first motor by with the center hole 3 at cylindrical cam 5 axle center places on cylindrical cam keyway 4 power is inputted, drive the rotary disk 2 engaging with cylindrical cam 5 to rotate, shaft 12 coordinates with rotary disk 2 by cylindrical cam keyway 4, thereby drive shaft 12 to rotate, shaft 12 two ends are respectively equipped with spline 1 and are connected with left side gear 15 and right side gear 17 with spline 2 19, left side gear 15 and right side gear 17 engage with left side tooth bar 14 and 16 of right side tooth bars respectively, thereby make left side gear 15 left side tooth bars 14 produce relative movement, right side gear 17 produces relative movement with right side tooth bar 16, left side tooth bar 14 produces motion with right side tooth bar 16.
Claims (7)
1. gear rack is combined a driving mechanism with cam turntable, it is characterized in that: comprise cylindrical cam (5), shaft (12), rotary disk (2), cylindrical roller (6), gear, tooth bar; At cylindrical cam (5), axle center place is provided with center hole (3), is provided with the cylindrical cam keyway (4) for power input in hole, cylindrical cam (5) and the upper rotary disk (2) coordinating of shaft (12) circumferentially distribution cylindrical roller (6) be meshed; Be provided with the gear connecting by spline keyway (10) in shaft (12) end, wheel and rack engagement simultaneously.
2. gear rack according to claim 1 is combined driving mechanism with cam turntable, it is characterized in that: described rotary disk (2) is evenly equipped with some cycle holes (7) that are connected with cylindrical roller (6) in outer ring, cylindrical roller (6) is connected with rotary disk (2) by angular contact bearing, and cylindrical roller (6) curved surface engages with the conjugation that cylindrical cam (5) contoured surface is two sides, space curved surface.
3. gear rack according to claim 1 and 2 is combined driving mechanism with cam turntable, it is characterized in that: on described gear, have spline keyway (10).
4. gear rack according to claim 3 is combined driving mechanism with cam turntable, it is characterized in that: described shaft axle body is provided with the shaft keyway (11) being connected with rotary disk.
5. gear rack according to claim 4 is combined driving mechanism with cam turntable, it is characterized in that: described shaft (12) one end is provided with the spline one (13) being connected with gear, and gear engages with single rack (1).
6. gear rack according to claim 4 is combined driving mechanism with cam turntable, it is characterized in that: described shaft (12) two ends are provided with the spline two (18) and the spline three (19) that are connected with left side gear (15) and right side gear (17) respectively, left side gear (15) and right side gear (17) engage with left side tooth bar (14) and right side tooth bar (16) respectively.
7. gear rack according to claim 6 is combined driving mechanism with cam turntable, it is characterized in that: on described rotary disk (2), have inner ring hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274224.7U CN203857000U (en) | 2014-05-27 | 2014-05-27 | Gear rack and cam turnplate joint transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274224.7U CN203857000U (en) | 2014-05-27 | 2014-05-27 | Gear rack and cam turnplate joint transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203857000U true CN203857000U (en) | 2014-10-01 |
Family
ID=51606851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420274224.7U Expired - Fee Related CN203857000U (en) | 2014-05-27 | 2014-05-27 | Gear rack and cam turnplate joint transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203857000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218365A (en) * | 2017-06-30 | 2017-09-29 | 太仓宝达齿条有限公司 | A kind of spur rack damps composite driving mechanism |
-
2014
- 2014-05-27 CN CN201420274224.7U patent/CN203857000U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218365A (en) * | 2017-06-30 | 2017-09-29 | 太仓宝达齿条有限公司 | A kind of spur rack damps composite driving mechanism |
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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 |
Granted publication date: 20141001 Termination date: 20160527 |