CN204628484U - A kind of speed change gear - Google Patents
A kind of speed change gear Download PDFInfo
- Publication number
- CN204628484U CN204628484U CN201520061181.9U CN201520061181U CN204628484U CN 204628484 U CN204628484 U CN 204628484U CN 201520061181 U CN201520061181 U CN 201520061181U CN 204628484 U CN204628484 U CN 204628484U
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- China
- Prior art keywords
- gear
- speed change
- change gear
- driving cog
- face
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Abstract
The utility model provides a kind of speed change gear, belongs to field of mechanical technique.It solve the problems such as existing speed change gear manufacture cost is high, structure is not compact.This speed change gear comprises gear, and gear axially offers splined hole, offers the fork slot of a ring shape in the middle part of the outer circumferential face of gear, and the outer circumferential face of gear has the driving cog being symmetrical in moving tooth groove and arranging.The utility model has compact structure, the advantage such as easily manufactured.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of gear, particularly a kind of speed change gear.
Background technique
Speed changer to fix or stepping changes the gear drive of output shaft and input shaft velocity ratio, also known as gearbox.Speed changer is made up of driving mechanism and gear, can be made into independent gear or attaches together in same housing with driving mechanism.The large multiplex ordinary gear transmission of driving mechanism, what also have uses Planetary Gear Transmission.
Ordinary gear transmission shifting mechanism generally uses shifting slide gear and synchronizer etc., and shifting slide gear has multi-joint shifting slide gear and conjugates dividing of shifting slide gear.By three shifting slide gear speed changes, axial dimension is large; With displacement shifting slide gear speed change, compact structure, but velocity ratio change is little.Synchronizer have engagement type and friction type point.During with engagement type synchronizer, speed change should be carried out when stopping or speed discrepancy is very little; Can carry out speed change during on-stream any speed discrepancy with friction type synchronizer, but bearing capacity is little, and diaxon stringent synchronization can not be ensured.For overcoming this shortcoming, friction plate being loaded onto by engagement type synchronizer, engaging again after first follower being taken to synchronous speed by friction plate during speed change.Planetary Gear Transmission speed changer available brake device controls speed change.Speed changer be widely used in lathe, vehicle and other need on the machine of speed change.
Speed change gear in speed changer requires that conversion is brisk, the efficiency of transferring power wants high, and bearing capacity is strong, but the speed change gear quantity in current speed changer is more, combination with one another has coordinated speed change task, this spline structure is comparatively complicated, and matching requirements are high, and manufacturing costly, manufacturing cycle is long, running energy consumption is high, and the frequency producing fault in using process is high, and user cost is high.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of compact structure, the easily manufactured and speed change gear that transmission efficiency is high.
The purpose of this utility model realizes by following technical proposal: a kind of speed change gear, comprise gear, described gear axially offers splined hole, it is characterized in that, offer the fork slot of a ring shape in the middle part of the outer circumferential face of described gear, the outer circumferential face of described gear has the driving cog being symmetrical in described moving tooth groove and arranging.
In this speed change gear, fork slot is for gearshift, this speed change gear possesses transmission and gearshift two kinds of functions, this sample speed change gear instead of driving gear in the past and power shift gear, makes easily manufactured, reduces manufacture cost, and compact structure, eliminate the power transmission loss in the past between driving gear and power shift gear, transmission efficiency is high, and the symmetrical fork slot of driving cog is arranged in addition, symmetrical configuration makes dimensional accuracy high, and transmission process is stablized.
In above-mentioned a kind of speed change gear, the hole wall of described splined hole has 12 or 14 or 16 or 18 or 20 spline tooths, wherein has the space width between two adjacent spline tooths to be 2 times of the space width between all the other adjacent spline tooths.Space width between two adjacent spline tooths is maximum, space width between all the other adjacent spline tooths is consistent, space width quantity between such spline tooth and spline tooth is even number, splined shaft accuracy of manufacturing is high, and (splined shaft side face 360 ° of even numbers can be divided equally, engage effective, transmission efficiency is good), the detection axis accuracy of manufacturing that when in like manner detecting, insertion splined hole engages with spline tooth is high, place is snapped in the maximum tooth spacing of two adjacent spline teeth for locating during detection, positioning precision is high, easy to detect and precision is high.
In above-mentioned a kind of speed change gear, the outer end of described driving cog is provided with face, oblique angle, and described face, oblique angle makes the length of driving cog teeth be less than the length of driving cog tooth root and the angle of described face, oblique angle and horizontal plane is 45 °.Face, oblique angle be arranged so that speed change switch more smooth and easy.
In above-mentioned a kind of speed change gear, described gear offers the inner conical groove being positioned at described splined hole two ends.Inner conical groove alleviates deadweight, and makes gear easy for installation.
Compared with prior art, this speed change gear compact structure, easily manufactured, low cost of manufacture, and also from heavy and light, speed change is slim and graceful, and transmission efficiency is high, and manufacturing dimension precision is high in addition, and transmission process is stablized, and long service life, user cost is low.
Accompanying drawing explanation
Fig. 1 is the side-looking structural representation of this speed change gear.
Fig. 2 is the sectional structure schematic diagram of this speed change gear.
In figure, 1, gear; 2, splined hole; 3, fork slot; 4, driving cog; 5, spline tooth; 6, face, oblique angle; 7, inner conical groove.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, this speed change gear comprises gear 1, gear 1 axially offers splined hole 2, the hole wall of splined hole 2 has 16 spline tooths 5, the space width between two adjacent spline tooths 5 is wherein had to be 2 times of the space width between spline tooth 5 that all the other are adjacent, gear 1 also offers the inner conical groove 7 being positioned at splined hole 2 two ends, the fork slot 3 of a ring shape is offered in the middle part of the outer circumferential face of gear 1, the outer circumferential face of gear 1 has the driving cog 4 being symmetrical in moving tooth groove and arranging, the outer end of driving cog 4 is provided with face, oblique angle 6, face, oblique angle 6 makes the length of driving cog 4 teeth be less than the length of driving cog 4 tooth root and face, oblique angle 6 is 45 ° with the angle of horizontal plane.
In this speed change gear, fork slot 3 is for gearshift, this speed change gear possesses transmission and gearshift two kinds of functions, the driving cog 4 that this sample speed change gear instead of in the past is taken turns and power shift gear, makes easily manufactured, reduces manufacture cost, and compact structure, eliminate driving cog 4 in the past and take turns the power transmission loss between power shift gear, transmission efficiency is high, and the symmetrical fork slot 3 of driving cog 4 is arranged in addition, symmetrical configuration makes dimensional accuracy high, and transmission process is stablized.
Space width between two adjacent spline tooths 5 is maximum, space width between all the other adjacent spline tooths 5 is consistent, space width quantity between such spline tooth 5 and spline tooth 5 is even number, splined shaft accuracy of manufacturing is high, and (splined shaft side face 360 ° of even numbers can be divided equally, engage effective, transmission efficiency is good), the detection axis accuracy of manufacturing that when in like manner detecting, insertion splined hole 2 engages with spline tooth 5 is high, place is snapped in the maximum tooth spacing of two adjacent spline teeth 5 for locating during detection, positioning precision is high, easy to detect and precision is high.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as gear 1, splined hole 2, fork slot 3, driving cog 4, spline tooth 5, face, oblique angle 6, inner conical groove 7 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (5)
1. a speed change gear, comprise gear (1), described gear (1) axially offers splined hole (2), it is characterized in that, offer the fork slot (3) of a ring shape in the middle part of the outer circumferential face of described gear (1), the outer circumferential face of described gear (1) has the driving cog (4) being symmetrical in described fork slot (3) and arranging.
2. a kind of speed change gear according to claim 1, it is characterized in that, the hole wall of described splined hole (2) has 12 or 14 or 16 or 18 or 20 spline tooths (5), wherein has the space width between two adjacent spline tooths (5) to be 2 times of the space width between all the other adjacent spline tooths (5).
3. a kind of speed change gear according to claim 1 and 2, it is characterized in that, the outer end of described driving cog (4) is provided with face, oblique angle (6), and described face, oblique angle (6) makes the length of driving cog (4) teeth be less than the length of driving cog (4) tooth root and described face, oblique angle (6) is 45 ° with the angle of horizontal plane.
4. a kind of speed change gear according to claim 1 and 2, is characterized in that, described gear (1) offers the inner conical groove (7) being positioned at described splined hole (2) two ends.
5. a kind of speed change gear according to claim 3, is characterized in that, described gear (1) offers the inner conical groove (7) being positioned at described splined hole (2) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520061181.9U CN204628484U (en) | 2015-01-29 | 2015-01-29 | A kind of speed change gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520061181.9U CN204628484U (en) | 2015-01-29 | 2015-01-29 | A kind of speed change gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628484U true CN204628484U (en) | 2015-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520061181.9U Expired - Fee Related CN204628484U (en) | 2015-01-29 | 2015-01-29 | A kind of speed change gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595456A (en) * | 2015-01-29 | 2015-05-06 | 台州富特传动机械有限公司 | Speed change gear |
-
2015
- 2015-01-29 CN CN201520061181.9U patent/CN204628484U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595456A (en) * | 2015-01-29 | 2015-05-06 | 台州富特传动机械有限公司 | Speed change gear |
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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: 20150909 Termination date: 20220129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |