CN207975201U - Axis movement becomes the two stage speed change mechanism of centre-to-centre spacing - Google Patents
Axis movement becomes the two stage speed change mechanism of centre-to-centre spacing Download PDFInfo
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- CN207975201U CN207975201U CN201721922086.9U CN201721922086U CN207975201U CN 207975201 U CN207975201 U CN 207975201U CN 201721922086 U CN201721922086 U CN 201721922086U CN 207975201 U CN207975201 U CN 207975201U
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- China
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- axis
- sprocket
- holder
- chain
- shell
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Abstract
A kind of axis movement becomes the two stage speed change mechanism of centre-to-centre spacing, including shell, lower axis mechanism, upper axis mechanism and chain wheel speed-changing mechanism.Shell is equipped with axial trough and track, and lower axis mechanism is equipped with lower block, and lower block is equipped with axis, upper axis mechanism is equipped with upper pulley, and upper pulley is equipped with axis, lower block and lower block are equipped in track, lower block and upper pulley lower in orbit can move, to realize that lower axle and upper axis move up and down；Chain wheel speed-changing mechanism is the chaindriven gear of two level, it can realize large transmission ratio, lower axle is connected to upper axis by chain wheel speed-changing mechanism, by the way of installing sprocket wheel on two swinging mountings, realizes the gear that transmission ratio is constant and the movement of transmission shaft relative position changes.
Description
Technical field
The utility model is related to a kind of mechanical transmission mechanism, especially a kind of transmission ratio is constant and is driven shaft position movement and becomes
The axis movement of change becomes the two stage speed change mechanism of centre-to-centre spacing.
Background technology
In mechanical speed change transmission, the centre-to-centre spacing of two axis is typically relatively-stationary, but some situations need two axis
Centre-to-centre spacing be variation, the problem of especially two axis change centre-to-centre spacing during exercise is difficult to solve, and typically uses flexible axle
Transmission, but flexible axle cannot be driven large torque, especially not applicable step-up drive.
Invention content
To solve the above-mentioned problems, the utility model provides a kind of two stage speed change mechanism of axis movement change centre-to-centre spacing.Using
Movable axle and two level sprocket wheel gear, you can solve the problems, such as this.
Technical solution adopted by the utility model to solve its technical problems is：A kind of axis movement becomes the two level change of centre-to-centre spacing
Fast mechanism, including shell, lower axis mechanism, upper axis mechanism and chain wheel speed-changing mechanism.Shell is equipped with axial trough and track；Lower axis mechanism by
Lower axle, bearing, bearing block, lower block, big sprocket wheel, key, locking set and lock nut composition；Upper axis mechanism is by upper axis, bearing, axis
Bearing, upper pulley, axle sleeve, minor sprocket, key, locking set and lock nut composition；Chain wheel speed-changing mechanism by big sprocket wheel, minor sprocket,
Duplicate sprocket, holder, jackshaft and chain composition.
Shell is symmetrical cuboid cavity structure, and shell front is equipped with axial trough, two are equipped in the cavity of shell
Track, every track point preceding orbital plane and rear orbital plane.
The structure of lower axis mechanism and upper axis mechanism is essentially identical, and lower axle and upper axis are multi-diameter shafts, is mounted on bearing, locking
Set and lock nut, for bearing in bearing block, bearing block and locking set are fixedly mounted on upper pulley and lower block both sides, locking set
External screw thread is made, screws and connect with lock nut, has 4 sheaves, sheave to be rolled by orbital plane on lower block and upper pulley
It is dynamic；Holder and big sprocket wheel are installed, big sprocket wheel is key connection on the small shaft end of lower axle；Be equipped on the small shaft end of upper axis axle sleeve,
Holder and minor sprocket, minor sprocket make key connection.
In chain wheel speed-changing mechanism, there are two holders, is mutually isostructural long-armed part, and respectively there is a circular hole at holder both ends,
The other end of lower axle upper bracket and the other end of upper bracing strut are hinged by jackshaft, and duplicate sprocket, duplex chain are cased on jackshaft
Wheel includes big sprocket wheel and minor sprocket, and respectively there is a baffle ring at jackshaft both ends for axially position duplicate sprocket and two holders, two
Holder can be rotated around jackshaft.The minor sprocket in big sprocket wheel and duplicate sprocket in lower axle is connected by chain；In duplicate sprocket
Big sprocket wheel is connect with the minor sprocket of upper axis by chain, forms two level chain drive.
The utility model has the beneficial effects that：Keep two transmission shafts removable using lower axis mechanism and upper axis mechanism；Using chain
Wheel gear makes mechanical variable speed device can large transmission ratio transmission.Realize that transmission ratio is constant and the movement of transmission shaft relative position becomes
The gear of change.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the integrally-built isometric front view of expression；
Fig. 2 is the integrally-built rear isometric view of expression；
Fig. 3 is front view；
Fig. 4 is rearview；
Fig. 5 is the left view in Fig. 4 upper edge AA cuttings；
Fig. 6 is the rearview in Fig. 5 upper edge BB cuttings；
Fig. 7 is that two axis move on to the next front view；
Fig. 8 is that two axis move on to the next partial cutaway rearview.
1. shell in figure, 2. axial troughs, 3. lower axles, 4. lock nuts, 5. lockings cover, 6. chains, 7. duplicate sprockets, on 8.
Axis, 9. axle sleeves, 10. lower blocks, 11. bearings, 12. bearing blocks, 13. tracks, 14. minor sprockets, 15. big sprocket wheels, 16. upper pulleys,
17. holder, 18. keys, 19. jackshafts.
Specific implementation mode
In Fig. 1 to Fig. 6, the connection of the contexture and parts of expression and position relationship and two axis move on to
The embodiment of position.The utility model includes shell（1）, lower axis mechanism, upper axis mechanism and chain wheel speed-changing mechanism.Shell（1）It is equipped with
Axial trough（2）And track（13）；Lower axis mechanism is by lower axle（3）, bearing（11）, bearing block（12）, lower block（10）, big sprocket wheel
（15）, key（18）, locking set（5）And lock nut（4）Composition；Upper axis mechanism is by upper axis（8）, bearing（11）, bearing block（12）、
Upper pulley（16）, axle sleeve（9）, minor sprocket（14）, key（18）, locking set（5）And lock nut（4）Composition；Chain wheel speed-changing mechanism
By big sprocket wheel（15）, minor sprocket（14）, duplicate sprocket（7）, holder（17）, jackshaft（19）And chain（6）Composition.
Shell（1）It is symmetrical cuboid cavity structure, shell（1）Front is equipped with axial trough（2）, shell（1）Sky
Intracavitary is equipped with two tracks（13）, every track（13）Divide preceding orbital plane and rear orbital plane.
The structure of lower axis mechanism and upper axis mechanism is essentially identical, lower axle（3）With upper axis（8）It is multi-diameter shaft, is mounted on axis
It holds（11）, locking set（5）And lock nut（4）, bearing（11）In bearing block（12）It is interior, bearing block（12）It is covered with locking（5）Gu
Dingan County is mounted in upper pulley（16）And lower block（10）Both sides, locking set（5）External screw thread is made, with lock nut（4）Connection is screwed,
Lower block（10）And upper pulley（16）On have 4 sheaves, sheave is rolled by orbital plane；Lower axle（3）Small shaft end on pacify
Equipped with holder（17）And big sprocket wheel（15）, big sprocket wheel（15）It is key connection；Upper axis（8）Small shaft end on axle sleeve is installed（9）, branch
Frame（17）And minor sprocket（14）, minor sprocket（14）It is key connection.
In chain wheel speed-changing mechanism, holder（17）There are two, it is mutually isostructural long-armed part, holder（17）Both ends respectively have
One circular hole, lower axle（3）Upper bracket（17）The other end and upper axis（8）Holder（17）The other end by jackshaft（19）It is hinged, in
Countershaft（19）On be cased with duplicate sprocket（7）, duplicate sprocket（7）Including big sprocket wheel and minor sprocket, jackshaft（19）Both ends respectively have one
Baffle ring is used for axially position duplicate sprocket（7）With two holders（17）, two holders（17）It can be around jackshaft（19）Rotation.Lower axle
（3）On big sprocket wheel（15）With duplicate sprocket（7）In minor sprocket by chain（6）Connection；Duplicate sprocket（7）In big sprocket wheel with
Upper axis（8）Minor sprocket（14）By chain（6）Connection forms two level chain drive.
In application, it can also be to slow down that the utility model, which can be speedup, lower axle（3）As driving shaft, upper axis（8）As
It is speedup when output shaft, drive path is from lower axle（3）Big sprocket wheel（15）It is transferred to duplicate sprocket（7）Pinion gear, arrive duplex
Sprocket wheel（7）Gear wheel, to upper axis（8）Output.Upper axis（8）As driving shaft, lower axle（3）As output shaft when be slow down, pass
Dynamic route is the inverse process of speedup situation.The utility model can also lock an axis（Lower axle or upper axis）, allow another axis
（Upper axis or lower axle）It is mobile.When operation, lower axle is needed（3）With upper axis（8）It is mobile simultaneously：Unscrew lower axle（3）With upper axis（8）Two
A lock nut（4）, adjust close to shell（1）Lock nut（4）Leave shell（1）A distance, then lock another lock
Determine nut（4）, form double nut self-locking.Need the mobile and another axis of an axis motionless：As long as locking unmoving axle close to shell（1）'s
Lock nut（4）With shell（1）Contact, then lock another lock nut（4）.
Fig. 7 and Fig. 8 is that two axis move on to the next embodiment, indicates that two axis of the utility model move on to the next construction group
At with parts connection and position relationship.
Claims (1)
1. a kind of axis movement becomes the two stage speed change mechanism of centre-to-centre spacing, including shell（1）, lower axis mechanism, upper axis mechanism and sprocket wheel become
Fast mechanism；Shell（1）Equipped with axial trough（2）And track（13）；Lower axis mechanism is by lower axle（3）, bearing（11）, bearing block（12）, under
Coaster（10）, big sprocket wheel（15）, key（18）, locking set（5）And lock nut（4）Composition；Upper axis mechanism is by upper axis（8）, bearing
（11）, bearing block（12）, upper pulley（16）, axle sleeve（9）, minor sprocket（14）, key（18）, locking set（5）And lock nut（4）Group
At；Chain wheel speed-changing mechanism is by big sprocket wheel（15）, minor sprocket（14）, duplicate sprocket（7）, holder（17）, jackshaft（19）And chain
（6）Composition, it is characterized in that：Shell（1）It is symmetrical cuboid cavity structure, shell（1）Front is equipped with axial trough（2）, shell
Body（1）Cavity in be equipped with two tracks（13）, every track point preceding orbital plane and rear orbital plane；Lower axis mechanism and upper axis mechanism
Structure it is essentially identical, lower axle（3）It is multi-diameter shaft with upper axis, is mounted on bearing（11）, locking set（5）And lock nut（4）,
Bearing（11）In bearing block（12）It is interior, bearing block（12）It is covered with locking（5）It is fixedly mounted on upper pulley（16）And lower block（10）
Both sides, locking set（5）External screw thread is made, with lock nut（4）Screw connection, lower block（10）And upper pulley（16）On have 4
A sheave, sheave are rolled by orbital plane；Lower axle（3）Small shaft end on holder is installed（17）And big sprocket wheel（15）, big chain
Wheel（15）It is key connection；Upper axis（8）Small shaft end on axle sleeve is installed（9）, holder（17）And minor sprocket（14）, minor sprocket（14）
It is key connection；In chain wheel speed-changing mechanism, holder（17）There are two, it is mutually isostructural long-armed part, holder（17）Both ends are each
There are a circular hole, lower axle（3）Upper bracket（17）The other end and upper axis（8）Holder（17）The other end by jackshaft（19）It is hinged,
Jackshaft（19）On be cased with duplicate sprocket（7）, duplicate sprocket（7）Including big sprocket wheel and minor sprocket, jackshaft（19）Both ends respectively have
One baffle ring is used for axially position duplicate sprocket（7）With two holders（17）, two holders（17）It can be around jackshaft（19）Rotation；Under
Axis（3）On big sprocket wheel（15）With duplicate sprocket（7）In minor sprocket by chain（6）Connection；Duplicate sprocket（7）In big sprocket wheel
With upper axis（8）Minor sprocket（14）By chain（6）Connection forms two level chain drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721922086.9U CN207975201U (en) | 2017-12-31 | 2017-12-31 | Axis movement becomes the two stage speed change mechanism of centre-to-centre spacing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721922086.9U CN207975201U (en) | 2017-12-31 | 2017-12-31 | Axis movement becomes the two stage speed change mechanism of centre-to-centre spacing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975201U true CN207975201U (en) | 2018-10-16 |
Family
ID=63768715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721922086.9U Expired - Fee Related CN207975201U (en) | 2017-12-31 | 2017-12-31 | Axis movement becomes the two stage speed change mechanism of centre-to-centre spacing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207975201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071758A (en) * | 2017-12-31 | 2018-05-25 | 沈阳工业大学 | Axis movement becomes the two stage speed change mechanism of centre-to-centre spacing |
-
2017
- 2017-12-31 CN CN201721922086.9U patent/CN207975201U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071758A (en) * | 2017-12-31 | 2018-05-25 | 沈阳工业大学 | Axis movement becomes the two stage speed change mechanism of centre-to-centre spacing |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181016 Termination date: 20191231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |