CN207728843U - A kind of gear that can eliminate gear-tooth inter-lobe clearance - Google Patents
A kind of gear that can eliminate gear-tooth inter-lobe clearance Download PDFInfo
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- CN207728843U CN207728843U CN201721789747.5U CN201721789747U CN207728843U CN 207728843 U CN207728843 U CN 207728843U CN 201721789747 U CN201721789747 U CN 201721789747U CN 207728843 U CN207728843 U CN 207728843U
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- gear
- pinion
- axis pin
- voussoir
- spring
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Abstract
A kind of gear that can eliminate rack-and-pinion inter-lobe clearance, it is characterized by gear and is made of the completely the same master gear of a pair of of flute profile and pinion, pinion is sleeved on outside the axle sleeve of master gear, self-lubricating gasket I is mutually separated between the two, self-lubricating gasket II and baffle ring are fixed on pinion other end, tensioning apparatus is housed on pinion, tensioning apparatus is by axis pin, spring, voussoir I, voussoir II, screw is constituted, have on master gear and the matched pin hole of axis pin, on pinion the elongated slot perpendicular with axis pin center line is designed with the junction of axis pin, axis pin passes through master gear, pinion, it is designed with spring eye on the linkage section of axis pin and pinion, tensioning apparatus is housed in elongated slot.The utility model has the advantage of pass through coaxial major and minor design of gears, tensioning apparatus is devised on pinion, major and minor gear mutually staggers so that the gear teeth of major and minor gear contact with the two sides of rack and ensure to have pressing force simultaneously respectively, eliminate the gap between wheel and rack.
Description
Technical field
The utility model belongs to gear transmission technology field, especially belongs to the gear that can eliminate gear-tooth inter-lobe clearance.
Background technology
In monocrystalline silicon, polysilicon（It is referred to as " crystal silicon " below）Cutting field, usually longer crystal bar（Polysilicon or
The cylinder or cuboid raw material of monocrystalline silicon）It is truncated into shorter bar.To improve efficiency, often there are multiple cutter heads to be carried out at the same time
Cutting.Because the blocked length of every crystal bar differs, cutter head and crystal holder（Device for supporting crystal bar）Position need energy
Enough mobile and in cutting process between them the mutual alignment long periods will remain unchanged.In general, cutter head and crystalline substance
The mobile device of support is all made of Rack and gear transmission mechanism.Rack and gear transmission mechanism is easy to use, but exists between the gear teeth
Certain drive gap.When cutting, because of inter-lobe clearance and cutting vibrating joint effect, the mutual position of cutter head and crystal holder
Setting often has subtle change, leads to the out-of-flatness of crystal bar truncation surface or is scratched, influences processing quality.
Invention content
The utility model patent is designed to provide a kind of gear that can eliminate gear-tooth inter-lobe clearance, to overcome
Adverse effect of the inter-lobe clearance of gear-tooth item to crystal bar truncation surface processing quality.
Technical solution used by the utility model is a kind of gear that can eliminate gear-tooth inter-lobe clearance, main points
It is that gear is made of the completely the same master gear of a pair of of flute profile and pinion, pinion is sleeved on outside the axle sleeve of master gear, the two
Between be mutually separated with self-lubricating gasket I, have the pit that can hold self-lubricating gasket I on the end face that pinion connects with self-lubricating gasket I
I, the depth of pit is less than the thickness of self-lubricating gasket I, and self-lubricating gasket II and baffle ring are fixed on pinion other end, from
Lubricating gasket II and baffle ring carry out axial limiting to pinion, tensioning apparatus are housed on pinion, tensioning apparatus is by axis pin, bullet
Spring, voussoir I, voussoir II, screw are constituted, and are had on master gear with the matched pin hole of axis pin, the junction on pinion with axis pin
It is designed with the elongated slot perpendicular with axis pin center line, axis pin passes through master gear, pinion, is set on the linkage section of axis pin and pinion
In respect of spring eye, spring, voussoir I, voussoir II, screw are housed in elongated slot, spring is machined on the end face that voussoir I is connect with spring
Seat, spring is between the spring eye and the spring base of voussoir I of axis pin, and the inclined-plane of voussoir I matches with the inclined-plane of voussoir II, spiral shell
Voussoir II is fixed together by nail with pinion, and voussoir II pushes I compressed spring of voussoir.
Voussoir II pushes I compressed spring of voussoir, and spring makes axis pin generate the trend that moves out, and master gear and axis pin it
Between tight fit, prevent the radial motion and rotation of axis pin, the thrust of spring to make the other end of pinion elongated slot（Threaded end）
Rotation is generated relative to gear shaft, pinion rotation, to make the gear teeth of major and minor gear be staggered, the amplitude being staggered is by gear-
Rack inter-lobe clearance limit or between axis pin and pinion elongated slot gap limitation so that the gear teeth of major and minor gear respectively with tooth
The two sides of groove contacts and ensures there is certain pressing force simultaneously, and then eliminates the gap between wheel and rack.
The width of elongated slot on pinion is more than axis pin, has gap between the two.
Spring eye is one end blind bore, as spring base hole.
With the matched pin hole of axis pin it is slot, the hole on master gear to ensure the direction in axis pin upper spring seat hole
Quadrangle rounded corner, axis pin end are similar diamond shaped structure, which is that four corner edge chamferings of rectangle are formed, and chamfering is used for
Avoid the fillet of slot on master gear.
Axis pin tabletting is fixed on the end face of pinion.It can prevent axis pin from deviating from.
The pit II of self-lubricating gasket II, the depth of pit can be held by having on the end face that pinion connects with self-lubricating gasket II
Thickness of the degree less than self-lubricating gasket II.Frictional force when pinion rotation can be reduced.
Gap between axis pin and pinion elongated slot is more than gear-tooth inter-lobe clearance.It in this way can at runtime can be maximum
Eliminate gear-tooth inter-lobe clearance.
With multiple tensioning apparatus being uniformly distributed along the circumference.Keep being staggered for pinion more steady.
On the linkage section of axis pin and pinion, it is machined with the plane with spring eye axis perpendicular, the width of plane is more than
The aperture of spring eye.First process plane, then processed springs hole in the plane on axis pin in this way, spring eye be not easy to bore it is askew,
Verticality is secure.
It is compact that the utility model has the advantage of structure designs, is easy to modularized design.It is set by coaxial major and minor gear
Meter, and devises tensioning apparatus on pinion, and major and minor gear mutually staggers so that the gear teeth of major and minor gear respectively with rack
The two sides of groove contacts and ensures there is certain pressing force simultaneously, and then eliminates the gap between wheel and rack.Selection is not
The tensioning spring of rigidity together, the tensioning apparatus of different number can form different tensile forces.According to gear size, this practicality is new
Type can design the tensioning apparatus of different number.
Description of the drawings
Fig. 1 is the application exemplary plot of the utility model（Wherein part 1 is the utility model, and part 2 is matched rack）
Fig. 2 is the front view of the utility model
Fig. 3 is the sectional view of the utility model
Fig. 4 is the B-B sectional views of Fig. 2
Fig. 5 is the structural schematic diagram of axis pin
Fig. 6 is main gear structure schematic diagram
Fig. 7 is pinion structural schematic diagram
Fig. 8 is the sectional view of pinion
Wherein：1 gear, 2 rack, 11 master gear, 111 pin hole, 12 pinion, 121 pit, I 122 elongated slot, 123 pit, II 13 bullet
173 axis pin end of spring 14 self-lubricating gasket, I 15 self-lubricating gasket, II 16 baffle ring, 17 axis pin, 171 spring base hole, 172 plane, 18 wedge
I 19 voussoir of block, II 20 screw, 21 axis pin tabletting.
Specific implementation mode
Technical solutions of the utility model are described further below in conjunction with the accompanying drawings
As shown in figures 1-8, a kind of gear that can eliminate gear-tooth inter-lobe clearance, it is completely the same by a pair of of flute profile
Master gear 11 and pinion 12 form, pinion is sleeved on the intermediate lands of master gear, and self-lubricating gasket I is mutually separated between the two
14, there are the pit I 121 that can hold self-lubricating gasket I, the depth of pit small on the end face that pinion connects with self-lubricating gasket I
In being fixed with self-lubricating gasket II 15 and baffle ring 16 on the thickness of self-lubricating gasket I, pinion other end, pinion is carried out
Axial limiting has the pit II 123 that can hold self-lubricating gasket II, pit on the end face that pinion connects with self-lubricating gasket II
Depth be less than self-lubricating gasket II thickness.Tensioning apparatus is housed, tensioning apparatus is by axis pin 17, spring 13, wedge on pinion
Block I 18, voussoir II 19, screw 20 are constituted, and are had on master gear with the matched pin hole 111 of axis pin, the company on pinion with axis pin
The place of connecing is designed with the elongated slot 122 perpendicular with axis pin center line, and axis pin one end is connected on master gear, and the other end is set on secondary tooth
In the elongated slot 122 of wheel.On master gear with the matched pin hole 111 of axis pin be slot, the hole quadrangle rounded corner；Match therewith
The axis pin end 173 of conjunction is four corner edge chamferings of rectangle, and chamfering is used for avoiding the fillet of slot on master gear.Axis pin
It is to be interference fitted with the pin hole on master gear, the length perpendicular with axis pin center line is designed with the junction of axis pin on pinion
The width of slot 122, the elongated slot on pinion is more than axis pin, there is gap between the two, between 12 elongated slot of axis pin 17 and pinion between
Gap is more than gear-tooth inter-lobe clearance, can be limited to gear-tooth inter-lobe clearance when coordinating with rack, disappear to the full extent
Except gear-tooth inter-lobe clearance.Spring eye 171 is designed on the linkage section of axis pin and pinion, spring eye is that one end is closed
Hole, as spring base hole；First on the linkage section of axis pin and pinion, plane 172, then processed springs in the plane are first processed
Hole, plane 172 and spring eye axis perpendicular, the width of plane 172 are more than the aperture of spring eye.Spring is housed in elongated slot 122
13, voussoir I 18, voussoir II 19, screw 20 are machined with spring base on the end face that voussoir I is connect with spring, and spring is mounted in axis pin
Between spring eye and the spring base hole of voussoir I, the inclined-plane of voussoir I matches with the inclined-plane of voussoir II, and screw 20 fixes voussoir II
19 on pinion.During lock-screw 20, voussoir II 19 pushes after pushing I 18 compressed spring 13 of voussoir, spring 13 to compress
Axis pin 17 makes major and minor gear produce relative rotation, to make the gear teeth of major and minor gear be staggered, the flank of tooth two with rack respectively
The flank of tooth is in contact, and achievees the purpose that eliminate gear 1 and 2 gap of rack.It is fixed with axis pin tabletting 21 on the end face of pinion, uses
Axially deviate from preventing axis pin.
With multiple tensioning apparatus being uniformly distributed along the circumference, generally 2-4, keep being staggered for pinion more steady.
Claims (10)
1. a kind of gear that can eliminate gear-tooth inter-lobe clearance, it is characterised in that：Gear is by the completely the same master of a pair of of flute profile
Gear and pinion composition, pinion are sleeved on outside the axle sleeve of master gear, and self-lubricating gasket I is mutually separated between the two（14）, pinion
The pit I of self-lubricating gasket I can be held by having on the end face to connect with self-lubricating gasket I（121）, the depth of pit is less than self-lubricating
The thickness of gasket I is fixed with self-lubricating gasket II on pinion other end（15）And baffle ring（16）, self-lubricating gasket II and gear
Circle carries out axial limiting to pinion, tensioning apparatus is housed on pinion, tensioning apparatus is by axis pin（17）, spring（13）, voussoir I
（18）, voussoir II（19）, screw（20）It constitutes, has and the matched pin hole of axis pin on master gear（111）, on pinion with axis pin
Junction be designed with the elongated slot perpendicular with axis pin center line（122）, axis pin passes through master gear, pinion, axis pin and secondary tooth
It is designed with spring eye on the linkage section of wheel（171）, elongated slot（122）It is interior that spring is housed（13）, voussoir I（18）, voussoir II（19）, spiral shell
Nail（20）, spring base, spring of the spring mounted in the spring eye and voussoir I of axis pin are machined on the end face that voussoir I is connect with spring
Between seat, the inclined-plane of voussoir I matches with the inclined-plane of voussoir II, screw（20）By voussoir II（19）It is fixed on one with pinion
It rises, voussoir II（19）Push voussoir I（18）Compressed spring（13）.
2. a kind of gear that can eliminate gear-tooth inter-lobe clearance according to claim 1, it is characterised in that：Axis pin with
Pin hole on master gear is interference fit.
3. a kind of gear that can eliminate gear-tooth inter-lobe clearance according to claim 1, it is characterised in that：Pinion
On the width of elongated slot be more than axis pin, have gap between the two.
4. a kind of gear that can eliminate gear-tooth inter-lobe clearance according to claim 1, it is characterised in that：Spring eye
（171）For one end blind bore, as spring base hole.
5. a kind of gear that can eliminate gear-tooth inter-lobe clearance according to claim 1, it is characterised in that：In secondary tooth
Axis pin tabletting is fixed on the end face of wheel（21）.
6. a kind of gear that can eliminate gear-tooth inter-lobe clearance according to claim 1, it is characterised in that：Pinion
The pit II of self-lubricating gasket II can be held by having on the end face to connect with self-lubricating gasket II（123）, the depth of pit is less than certainly
The thickness of lubricating gasket II.
7. a kind of gear that can eliminate gear-tooth inter-lobe clearance according to claim 1, it is characterised in that：Axis pin
（17）With pinion（12）Gap between elongated slot is more than gear-tooth inter-lobe clearance.
8. a kind of gear that can eliminate gear-tooth inter-lobe clearance according to claim 1, it is characterised in that：With more
A tensioning apparatus being uniformly distributed along the circumference.
9. a kind of gear that can eliminate gear-tooth inter-lobe clearance according to claim 1, it is characterised in that：Axis pin with
On the linkage section of pinion, it is machined with the plane with spring eye axis perpendicular（172）, plane（172）Width be more than spring
The aperture in hole.
10. a kind of gear that can eliminate gear-tooth inter-lobe clearance according to claim 1, it is characterised in that：Master gear
The upper and matched pin hole of axis pin（111）For slot, the hole quadrangle rounded corner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721789747.5U CN207728843U (en) | 2017-12-20 | 2017-12-20 | A kind of gear that can eliminate gear-tooth inter-lobe clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721789747.5U CN207728843U (en) | 2017-12-20 | 2017-12-20 | A kind of gear that can eliminate gear-tooth inter-lobe clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207728843U true CN207728843U (en) | 2018-08-14 |
Family
ID=63085615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721789747.5U Active CN207728843U (en) | 2017-12-20 | 2017-12-20 | A kind of gear that can eliminate gear-tooth inter-lobe clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207728843U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546957A (en) * | 2020-05-11 | 2020-08-18 | 上海延锋座椅有限公司 | Adjusting mechanism of seat backrest |
| CN112594353A (en) * | 2020-12-11 | 2021-04-02 | 中国北方发动机研究所(天津) | Hydraulic shock-absorbing noise-reducing gear structure |
-
2017
- 2017-12-20 CN CN201721789747.5U patent/CN207728843U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546957A (en) * | 2020-05-11 | 2020-08-18 | 上海延锋座椅有限公司 | Adjusting mechanism of seat backrest |
| CN111546957B (en) * | 2020-05-11 | 2021-04-27 | 延锋安道拓座椅有限公司 | Adjusting mechanism of seat backrest |
| CN112594353A (en) * | 2020-12-11 | 2021-04-02 | 中国北方发动机研究所(天津) | Hydraulic shock-absorbing noise-reducing gear structure |
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