CN204784481U - Twin worm speed reducer - Google Patents
Twin worm speed reducer Download PDFInfo
- Publication number
- CN204784481U CN204784481U CN201520474147.4U CN201520474147U CN204784481U CN 204784481 U CN204784481 U CN 204784481U CN 201520474147 U CN201520474147 U CN 201520474147U CN 204784481 U CN204784481 U CN 204784481U
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- China
- Prior art keywords
- worm
- gear
- worm screw
- tooth
- speed reducer
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Abstract
The utility model discloses a twin worm speed reducer aims at providing one kind and can effectively carry out reduction gear unit, and overall structure is reasonable, and the cooperation precision is high, and the operation is stable, can ensure that each structure instantaneous position is undulant little, error and accumulative error be all less, twin worm speed reducer that transmission precision can effectively be ensured. It includes box, motor power, go up the worm, worm, transmission worm wheel down, goes up the worm, is equipped with gear, gear down on the worm respectively down, and lower worm is connected with motor power, go up the worm, down the worm all be connected with the cooperation of transmission worm wheel, outside upward gear, lower gear are in the box, upward gear and lower gear engagement. Go up the worm the helical tooth, down the helical tooth of worm have a same profile of tooth, lower worm includes worm axle, slip cap, the spiral gear position of lower worm on the slip cap, the sliding connection of slip cap and worm axle, the worm is epaxial to have spacing neck, has the compensation clearance between slip cap one end and the spacing neck, the slip cap other end is pushed down by a white regulating spring.
Description
Technical field
The utility model belongs to worm and gear precision drive technical field, particularly relates to a kind of twin worm speed reducer.
Background technique
In precision drive, control driving error most important, no matter how high speed reducer precision used in reality be, also can not eliminate driving error completely, can only error be allowed under certain condition as far as possible less.Worm-gear speed reducer is a class relatively more conventional in speed reducer, current worm and gear speed-reduction apparatus, although transmission accuracy can be promoted from raising accuracy of manufacturing, the raising aspect such as assembly precision, rationality, but for the control aspect of the cooperation driving error caused because of concentrated wear, vibrations, and the aspect such as the elimination of cumulative error, still have obvious deficiency.
Model utility content
The utility model is to overcome deficiency of the prior art, provide one and effectively can carry out gearing down, reasonable integral structure, quality of fit is high, stable, can ensure that the fluctuation of each structure instantaneous position is little, error and cumulative error all less, transmission accuracy can obtain the twin worm speed reducer of effective guarantee.
To achieve these goals, the utility model is by the following technical solutions:
A kind of twin worm speed reducer, comprise casing, power motor, worm screw is provided with in described casing, lower worm screw, transmission worm gear, described upper worm screw, lower worm screw all has one end to stretch out outside casing, upper worm screw stretches out the same side that one end outside casing and lower worm screw one end of stretching out outside casing are in casing, upper worm screw, lower worm screw is respectively equipped with and cogs, lower gear, cog coaxial with upper worm screw, lower gear is coaxial with lower worm screw, one end that described lower worm screw stretches out outside casing is connected with power motor, upper worm screw, lower worm screw is all connected with transmission worm gear, described transmission worm gear is located on a worm-wheel shaft, described cogs, lower gear is in outside casing, cog and to engage with lower gear.
As preferably, described lower worm screw comprises worm shaft, flip sleeve, the helical tooth of lower worm screw is positioned on flip sleeve, being slidably connected of described flip sleeve and worm shaft, described worm shaft has spacing neck, have compensate for clearance between flip sleeve one end and spacing neck, the flip sleeve the other end is pushed down by a self-regulation spring.
As preferably, described casing is provided with two steps, two upper bearing brackets, be provided with in described step in lower bearing, described upper bearing bracket and be provided with upper bearing (metal), described lower worm screw and lower bearing are connected, and described upper worm screw and upper bearing (metal) are connected.
As preferably, described lower worm screw is provided with spring retainer seat, and described self-regulation spring is belleville spring, and described belleville spring is between spring retainer seat and flip sleeve, and described spring retainer seat compresses one end of belleville spring.
As preferably, described worm shaft is provided with feather key, and described flip sleeve is provided with keyway, described feather key to be in keyway and can with flip sleeve relative sliding, described feather key is connected with worm shaft.
The beneficial effects of the utility model are: rational in infrastructure, have stable spacing mechanism, and running is steady, and transmission accuracy is high, and single structure not easily causes the problem such as displacement, engagement instability because of the factor such as mild wear, vibrations; Have self-adjusting ability, adaptability is good, and effectively can reduce cumulative error, overall precision is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is plan view of the present utility model.
In figure: casing 1, power motor 2, upper worm screw 3, lower worm screw 4, transmission worm gear 5, cog 6, lower gear 7, worm-wheel shaft 8, flip sleeve 9, spacing neck 10, self-regulation spring 11, step 12, upper bearing bracket 13, lower bearing 14, upper bearing (metal) 15, spring retainer seat 16, feather key 17.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As Fig. 1, in embodiment shown in Fig. 2, a kind of twin worm speed reducer, comprise casing 1, power motor 2, worm screw 3 is provided with in described casing, lower worm screw 4, transmission worm gear 5, described upper worm screw, lower worm screw all has one end to stretch out outside casing, upper worm screw stretches out the same side that one end outside casing and lower worm screw one end of stretching out outside casing are in casing, upper worm screw, lower worm screw is respectively equipped with and cogs 6, lower gear 7, cog coaxial with upper worm screw, lower gear is coaxial with lower worm screw, one end that described lower worm screw stretches out outside casing is connected with power motor, upper worm screw, lower worm screw is all connected with transmission worm gear, described transmission worm gear is located on a worm-wheel shaft 8, described cogs, lower gear is in outside casing, cog and to engage with lower gear.Any speed reducer, no matter how high its precision is, can not eliminate driving error, can only error be reduced as far as possible.In the utility model, adopt the fit form of closed twin worm, worm gear, working in coordination furthermore between two gears is spacing, (each structure all has double limitation and transmission and coordinates effectively can to improve the precision of overall transmission, even if there is single spacing benchmark wear out failure, inaccurate problem, due to the cooperation of another limit structure, still can keep position accurately).
Described lower worm screw comprises worm shaft, flip sleeve 9, the helical tooth of lower worm screw is positioned on flip sleeve, being slidably connected of described flip sleeve and worm shaft, described worm shaft has spacing neck 10, have compensate for clearance between flip sleeve one end and spacing neck, the flip sleeve the other end is pushed down by a self-regulation spring 11.Self-regulation spring pushes down flip sleeve all the time, furthermore between flip sleeve one end and spacing neck, there is compensate for clearance, so have self-regulation, even if there is the influence factors such as Surface of action mild wear, vibrations, still can ensure that the left flank of tooth of lower worm screw closely engages mutually with the right flank of tooth of transmission worm gear.
Described casing is provided with two steps, 12, two upper bearing brackets 13, be provided with in described step in lower bearing 14, described upper bearing bracket and be provided with upper bearing (metal) 15, described lower worm screw and lower bearing are connected, and described upper worm screw and upper bearing (metal) are connected.Quality of fit and rotational stability is improved by each bearing, bearing support.
Described lower worm screw is provided with spring retainer seat 16, and described self-regulation spring is belleville spring, and described belleville spring is between spring retainer seat and flip sleeve, and described spring retainer seat compresses one end of belleville spring.Belleville spring can provide end thrust all the time, and the left flank of tooth of lower worm screw is closely engaged mutually with the right flank of tooth of transmission worm gear.
Described worm shaft is provided with feather key 17, and described flip sleeve is provided with keyway, described feather key to be in keyway and can with flip sleeve relative sliding, described feather key is connected with worm shaft.Feather key is the class in conventional flat key, can be used for the occasion of parts on shaft along axle movement.
The utility model adopts the double worm closed, and upper worm screw, lower worm screw can functionally be replaced mutually, and power motor can adopt actuating motor.Lower worm screw is power intake, turbine shaft is output terminal, upper worm screw also can be used as auxiliary output terminal, upper worm screw, lower worm screw and transmission worm gear be cooperating simultaneously, be equivalent to have dual cooperation and spacing, error amount is little and error amount can be made relatively stable, and this can well be compensated in the system adopting servo digital control.The compression being aided with self-regulation spring is spacing, and the left flank of tooth of lower worm screw is closely engaged mutually with the right flank of tooth of transmission worm gear, and the left flank of tooth of upper worm screw also engages with the right flank of tooth of transmission worm gear, can reach the effect eliminating gap precision drive.
Claims (9)
1. a twin worm speed reducer, it is characterized in that, comprise casing, power motor, worm screw is provided with in described casing, lower worm screw, transmission worm gear, described upper worm screw, lower worm screw all has one end to stretch out outside casing, upper worm screw stretches out the same side that one end outside casing and lower worm screw one end of stretching out outside casing are in casing, upper worm screw, lower worm screw is respectively equipped with and cogs, lower gear, cog coaxial with upper worm screw, lower gear is coaxial with lower worm screw, one end that described lower worm screw stretches out outside casing is connected with power motor, upper worm screw, lower worm screw is all connected with transmission worm gear, described transmission worm gear is located on a worm-wheel shaft, described cogs, lower gear is in outside casing, cog and to engage with lower gear.
2. a kind of twin worm speed reducer according to claim 1, it is characterized in that, described lower worm screw comprises worm shaft, flip sleeve, the helical tooth of lower worm screw is positioned on flip sleeve, being slidably connected of described flip sleeve and worm shaft, described worm shaft has spacing neck, has compensate for clearance between flip sleeve one end and spacing neck, the flip sleeve the other end is pushed down by a self-regulation spring.
3. a kind of twin worm speed reducer according to claim 1 and 2, it is characterized in that, described casing is provided with two steps, two upper bearing brackets, be provided with in described step in lower bearing, described upper bearing bracket and be provided with upper bearing (metal), described lower worm screw and lower bearing are connected, and described upper worm screw and upper bearing (metal) are connected.
4. a kind of twin worm speed reducer according to claim 2, it is characterized in that, described lower worm screw is provided with spring retainer seat, described self-regulation spring is belleville spring, described belleville spring is between spring retainer seat and flip sleeve, described spring retainer seat compresses one end of belleville spring, and described spring retainer seat is threaded with worm shaft.
5. a kind of twin worm speed reducer according to claim 2 or 4, it is characterized in that, described worm shaft is provided with feather key, and described flip sleeve is provided with keyway, described feather key to be in keyway and can with flip sleeve relative sliding, described feather key is connected with worm shaft.
6. a kind of twin worm speed reducer according to claim 1, it is characterized in that, the spiral chute that the helical tooth of described lower worm screw is provided with a continuous print, arranges along the Hand of spiral of lower worm spiral tooth, described spiral chute is opened on the tooth top of lower worm spiral tooth.
7. a kind of twin worm speed reducer according to claim 1 or 6; it is characterized in that; the gear teeth of described transmission worm gear are provided with micro-change elasticity groove; described micro-change elasticity groove is opened on the tooth top of the gear teeth residing for self; the gear teeth of transmission worm gear are provided with distortion protective hole, and distortion protective hole is communicated with the bottom land of micro-change elasticity groove.
8. a kind of twin worm speed reducer according to claim 1 or 6, it is characterized in that, described transmission worm gear comprises worm wheel body, some complete teeth, some trough of belt teeth, complete tooth, trough of belt tooth are intervally arranged successively on the lateral margin of worm wheel body, described trough of belt tooth is provided with micro-change elasticity groove, and described micro-change elasticity groove is opened on the tooth top of the gear teeth residing for self;
When complete tooth and upper worm meshing, lower worm screw engages with trough of belt tooth, and when complete tooth and lower worm meshing, upper worm screw engages with trough of belt tooth.
9. a kind of twin worm speed reducer according to claim 8, is characterized in that, described trough of belt tooth is provided with distortion protective hole, and distortion protective hole is communicated with the bottom land of micro-change elasticity groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520474147.4U CN204784481U (en) | 2015-06-30 | 2015-06-30 | Twin worm speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520474147.4U CN204784481U (en) | 2015-06-30 | 2015-06-30 | Twin worm speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784481U true CN204784481U (en) | 2015-11-18 |
Family
ID=54524535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520474147.4U Expired - Fee Related CN204784481U (en) | 2015-06-30 | 2015-06-30 | Twin worm speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784481U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090370A (en) * | 2015-06-30 | 2015-11-25 | 杭州轰驰科技有限公司 | Speed reduction transmission device |
| CN108687560A (en) * | 2018-06-20 | 2018-10-23 | 广东遂联智能装备制造有限公司 | A kind of worm and gear blind-mate device |
| CN109569971A (en) * | 2018-12-26 | 2019-04-05 | 中山松德新材料装备有限公司 | The turntable of coating machine overturns structure |
| CN109630618A (en) * | 2019-01-17 | 2019-04-16 | 杭州星河传动机械研究院有限公司 | A kind of synchronous high-mechanic speed reducer |
| CN111043244A (en) * | 2019-11-27 | 2020-04-21 | 北京建瑞伟业科技有限公司 | Double-shaft synchronous symmetric indexable speed reducer |
-
2015
- 2015-06-30 CN CN201520474147.4U patent/CN204784481U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090370A (en) * | 2015-06-30 | 2015-11-25 | 杭州轰驰科技有限公司 | Speed reduction transmission device |
| CN108687560A (en) * | 2018-06-20 | 2018-10-23 | 广东遂联智能装备制造有限公司 | A kind of worm and gear blind-mate device |
| CN109569971A (en) * | 2018-12-26 | 2019-04-05 | 中山松德新材料装备有限公司 | The turntable of coating machine overturns structure |
| CN109630618A (en) * | 2019-01-17 | 2019-04-16 | 杭州星河传动机械研究院有限公司 | A kind of synchronous high-mechanic speed reducer |
| CN111043244A (en) * | 2019-11-27 | 2020-04-21 | 北京建瑞伟业科技有限公司 | Double-shaft synchronous symmetric indexable speed reducer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160630 |