CN202690961U - Gear without backlash - Google Patents
Gear without backlash Download PDFInfo
- Publication number
- CN202690961U CN202690961U CN 201220377382 CN201220377382U CN202690961U CN 202690961 U CN202690961 U CN 202690961U CN 201220377382 CN201220377382 CN 201220377382 CN 201220377382 U CN201220377382 U CN 201220377382U CN 202690961 U CN202690961 U CN 202690961U
- Authority
- CN
- China
- Prior art keywords
- gear
- monolithic
- gear body
- spring card
- backlash
- 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 - Lifetime
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Abstract
The utility model discloses a gear without a backlash. The gear comprises a gear body (1), wherein the center of the gear body is provided with a transmission shaft (2), and a monolithic gear (3) is sleeved on the transmission shaft; the edge of the transmission shaft is provided with a check ring groove (4), and a shaft check ring (5) is arranged in the check ring groove; a spring clamp piece (6) is arranged between the gear body and the monolithic gear, and one end of the spring clamp piece is clamped with a cylindrical pin (7) on the gear body, while the other end of the spring clamp piece is clamped with a cylindrical pin (8) on the monolithic gear. According to the gear, three uniformly distributed column-shaped pressure springs in the traditional gear without a backlash are cancelled, and the spring clamp piece with a thinner thickness is used for replacing a disc spring and the column-shaped pressure springs; and six cylindrical pins in the traditional gear without a backlash are cancelled, and two cylindrical pins and a screw are used for replacing the six cylindrical pins, so that the structures of the gear body and the monolithic gear are simplified, and meanwhile, the quantity of parts is reduced so as to ensure that the gear is easier to assemble, and the production cost is reduced. The gear without the backlash has the main advantages of simple structure and good manufacturability and assemblability, and the cost is not only saved, but also the noise of the gear when an engine is worked is reduced.
Description
Technical field
The utility model relates to a kind of anti backlash gear, belongs to the gear transmission technology field.
Background technique
In motor, adopt the engagement between gear and the gear to come transmitted power and moment of torsion, the engagement normal conditions between gear and the gear are for there being the sideshake engagement, and this engagement causes whole engine noise larger.In order to reduce noise, driven gear adopts and meshes without sideshake usually.
Existing anti backlash gear is assembled by gear body, monolithic gear, straight pin I, II, stage clip, dish spring, shaft block ring etc.Need each three of I type and II type straight pins, three of cylindricality stage clips, assembly technology is complicated, and volume is large, complex-shaped at machining gears body and monolithic gear, difficulty of processing is large, and cost is high; In addition, adopt the cylindricality stage clip to come adjusting gear body and monolithic gear magnitude of misalignment, complex structure, poor reliability.
Summary of the invention
The purpose of this utility model is, a kind of anti backlash gear simple in structure is provided.To reduce processing and device difficulty, dwindle the volume of anti backlash gear, improve the functional reliability of anti backlash gear.
The technical solution of the utility model:
A kind of anti backlash gear comprises the gear body; Gear body center is provided with transmission shaft, cover has the monolithic gear on the transmission shaft, the edge of transmission shaft is provided with circlip groove, be provided with shaft block ring in the circlip groove, between gear body and monolithic gear, be provided with spring card, straight pin clamping on spring card one end and the gear body, the straight pin clamping on the spring card the other end and the monolithic gear.
In the aforementioned anti backlash gear, be provided with annular groove between the gear teeth of the transmission shaft of described gear body and gear body, described spring card is positioned at annular groove.
In the aforementioned anti backlash gear, described spring card be shaped as the eccentric circle arcuation, circular-arc two ends are provided with bayonet socket; The bayonet socket of spring card one end and the straight pin clamping on the gear body, the straight pin clamping on the bayonet socket of the spring card the other end and the monolithic gear.
In the aforementioned anti backlash gear, described gear body is provided with tapped hole, and described monolithic gear is provided with positioning hole, is provided with positioning screwn in the positioning hole, and positioning screwn and tapped hole spin.
Compared with prior art, the utility model has been cancelled three uniform column type stage clips in the existing anti backlash gear, spring card with a thinner thickness has substituted the column type stage clip, six straight pins in the existing anti backlash gear have been cancelled, six straight pins have been substituted with two straight pins and a screw, simplify the structure of gear body and monolithic gear, reduced gear body and monolithic Gear Processing difficulty; Reduce simultaneously number of spare parts, so that assemble up easilier, reduced cost of production.Major advantage of the present utility model is simple in structure, and manufacturability and assembling capacity are good, has not only saved cost but also guaranteed gear reaches the noise reduction environmental protection when engine operation purpose.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is assembling schematic representation of the present utility model;
Fig. 4 is the mesh schematic representation of the utility model and driving gear.
Being labeled as among the figure: 1-gear body, 2-transmission shaft, 3-monolithic gear, the 4-circlip groove, 5-shaft block ring, 6-spring card, straight pin on the 7-gear body, the straight pin on the 8-monolithic gear, the gear teeth of 9-gear body, the 10-annular groove, 11-bayonet socket, 12-tapped hole, the 13-positioning hole, the 14-positioning screwn, the gear teeth of 15-monolithic gear, 16-driving gear.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, but not as to any restriction of the present utility model.
Embodiment.A kind of anti backlash gear, as depicted in figs. 1 and 2.Gear body 1 center is provided with transmission shaft 2, cover has monolithic gear 3 on the transmission shaft 2, the edge of transmission shaft 2 is provided with circlip groove 4, be provided with shaft block ring 5 in the circlip groove 4, between gear body 1 and monolithic gear 3, be provided with spring card 6, straight pin 7 clampings on spring card 6 one ends and the gear body, straight pin 8 clampings on spring card 6 the other ends and the monolithic gear.Be provided with annular groove 10 between the transmission shaft 2 of described gear body 1 and the gear teeth 9 of gear body, described spring card 6 is positioned at annular groove 10.Described spring card 6 be shaped as the eccentric circle arcuation, circular-arc two ends are provided with bayonet socket 11; The bayonet socket 11 of spring card 6 one ends and straight pin 7 clampings on the gear body, the bayonet socket 11 of spring card 6 the other ends and straight pin 8 clampings on the monolithic gear.Described gear body 1 is provided with tapped hole 12(and sees Fig. 2), described monolithic gear 3 is provided with positioning hole 13(and sees Fig. 3), be provided with positioning screwn 14(in the positioning hole 13 and see Fig. 3), positioning screwn 14 spins with tapped hole 12.
Erection drawing of the present utility model assembles the front straight pin 7 of installing on the gear body at gear body 1 first as shown in Figure 3, the straight pin 8 on monolithic gear 3 installation monolithic gears; Spring card 6 is placed in the annular groove 10 of gear body 1, the bayonet socket 11 of spring card 6 one ends and the straight pin 7 on the gear body are fitted, again the straight pin 8 on the monolithic gear and the bayonet socket 11 of spring card 6 the other ends are fitted; Then monolithic gear 3 is pasted to be incorporated in the circlip groove 4 with gear body 1 and load onto shaft block ring, adopt the special tooling monolithic gear 3 that turns clockwise, when the positioning hole 13 that rotates on the monolithic gear 3 aligns with tapped hole 12 on the gear body 1, and the gear teeth 9 that make the gear body and the gear teeth 15 of monolithic gear are fixed gear body 1 and the position of monolithic gear 3 with positioning screwn 14 when the teeth directional direction overlaps fully.Then the engine gear case of anti backlash gear of the present utility model being packed into must unload positioning screwn 14 before running, realizes without the sideshake transmission.
Working principle of the present utility model as shown in Figure 4, the arrow among Fig. 4 is depicted as the sense of rotation of two gears, when driving gear 16 turns clockwise, drives anti backlash gear of the present utility model and is rotated counterclockwise.The stress surface that the force surface of the driving gear gear teeth promotes the gear body gear teeth is rotated counterclockwise gear body 1, sideshake can appear in the non-stress face at gear body gear, because the monolithic gear 3 in the utility model along the non-force surface dieback of angle of transmission opposite spin and driving gear gear, has been eliminated the sideshake between driving gear and the utility model anti backlash gear under the effect of spring card 6.Because the opposite spin angle of monolithic gear 3 can be regulated under the effect of spring card 6 automatically, so can guarantee to move without sideshake all the time between two gears, make the noise of motor when work reach minimum.
Claims (4)
1. an anti backlash gear comprises gear body (1); It is characterized in that: gear body (1) center is provided with transmission shaft (2), the upper cover of transmission shaft (2) has monolithic gear (3), the edge of transmission shaft (2) is provided with circlip groove (4), be provided with shaft block ring (5) in the circlip groove (4), between gear body (1) and monolithic gear (3), be provided with spring card (6), straight pin (7) clamping on spring card (6) one ends and the gear body, straight pin (8) clamping on spring card (6) the other end and the monolithic gear.
2. described anti backlash gear according to claim 1, it is characterized in that: be provided with annular groove (10) between the transmission shaft (2) of described gear body (1) and the gear teeth (9) of gear body, described spring card (6) is positioned at annular groove (10).
3. described anti backlash gear according to claim 2, it is characterized in that: circular-arc, the circular-arc two ends that are shaped as of described spring card (6) are provided with bayonet socket (11); Straight pin (7) clamping on the bayonet socket (11) of spring card (6) one ends and the gear body, straight pin (8) clamping on the bayonet socket (11) of spring card (6) the other end and the monolithic gear.
4. described anti backlash gear according to claim 3, it is characterized in that: described gear body (1) is provided with tapped hole (12), described monolithic gear (3) is provided with positioning hole (13), be provided with positioning screwn (14) in the positioning hole (13), positioning screwn (14) spins with tapped hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377382 CN202690961U (en) | 2012-08-01 | 2012-08-01 | Gear without backlash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377382 CN202690961U (en) | 2012-08-01 | 2012-08-01 | Gear without backlash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690961U true CN202690961U (en) | 2013-01-23 |
Family
ID=47546587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220377382 Expired - Lifetime CN202690961U (en) | 2012-08-01 | 2012-08-01 | Gear without backlash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690961U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522750A (en) * | 2015-12-29 | 2016-04-27 | 南京卓能机械设备有限公司 | Paper bag punching device |
| CN105840774A (en) * | 2016-05-20 | 2016-08-10 | 天津泰威齿轮有限公司 | Backlash-free gear |
| CN105864397A (en) * | 2016-05-03 | 2016-08-17 | 常州机电职业技术学院 | Clearance-eliminating skewed-tooth cylindrical gear |
| CN109434819A (en) * | 2018-11-23 | 2019-03-08 | 上海工程技术大学 | A kind of micromotion mechanism for industrial robot wrist |
| CN111140641A (en) * | 2019-12-11 | 2020-05-12 | 兰州飞行控制有限责任公司 | Backlash eliminating gear for coupling flight control shaft and angle sensor and using method thereof |
-
2012
- 2012-08-01 CN CN 201220377382 patent/CN202690961U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522750A (en) * | 2015-12-29 | 2016-04-27 | 南京卓能机械设备有限公司 | Paper bag punching device |
| CN105864397A (en) * | 2016-05-03 | 2016-08-17 | 常州机电职业技术学院 | Clearance-eliminating skewed-tooth cylindrical gear |
| CN105840774A (en) * | 2016-05-20 | 2016-08-10 | 天津泰威齿轮有限公司 | Backlash-free gear |
| CN109434819A (en) * | 2018-11-23 | 2019-03-08 | 上海工程技术大学 | A kind of micromotion mechanism for industrial robot wrist |
| CN109434819B (en) * | 2018-11-23 | 2022-02-11 | 上海工程技术大学 | Micro-motion mechanism for industrial robot wrist |
| CN111140641A (en) * | 2019-12-11 | 2020-05-12 | 兰州飞行控制有限责任公司 | Backlash eliminating gear for coupling flight control shaft and angle sensor and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |