CN204175875U - A kind of adjustable twin worm speed reducer - Google Patents
A kind of adjustable twin worm speed reducer Download PDFInfo
- Publication number
- CN204175875U CN204175875U CN201420365372.XU CN201420365372U CN204175875U CN 204175875 U CN204175875 U CN 204175875U CN 201420365372 U CN201420365372 U CN 201420365372U CN 204175875 U CN204175875 U CN 204175875U
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- Prior art keywords
- worm
- wheel shaft
- casing
- speed reducer
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 24
- 210000003746 feather Anatomy 0.000 claims description 38
- 239000003921 oil Substances 0.000 claims description 12
- 239000010705 motor oil Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to a kind of speed reducer, especially relates to a kind of adjustable twin worm speed reducer.It mainly solves speed reducer existing for prior art when running into power failure or electrical fault, and the moving link that speed reducer is fixed on output shaft may be in irrational position, the technical problem that cannot to reset smoothly etc.The utility model comprises casing, one-level worm screw is provided with in described casing, one-level worm screw is connected with motor by the motor key on motor shaft, one-level worm meshing has first-stage worm gear, first-stage worm gear is connected with worm and worm gear axle by key, worm screw on worm and worm gear axle engages with second-stage worm gear, second-stage worm gear connects output worm-wheel shaft by lockup device, export the push rod that worm-wheel shaft inside is provided with the output worm-wheel shaft that lockup device can be made to throw off or connect, the end exporting worm-wheel shaft through hole is provided with guide rail, guide rail has spiral-shaped guide groove, the jacking block that can contact push rod is provided with in guide rail, jacking block is slidably connected in spiral-shaped guide groove by screw.
Description
Technical field
The utility model relates to a kind of speed reducer, especially relates to a kind of adjustable twin worm speed reducer.
Background technique
Reducing motor is a kind of actuating unit, mainly utilizes gear to carry out rate conversion, the output winding number of motor shaft is decelerated to required winding number, just obtains the device of larger torque.Chinese patent discloses a kind of reducing motor (Authorization Notice No.: CN201383736), it reduction gear casing comprising motor and be fixedly connected with motor, reduction gears mechanism is provided with in reduction gear casing, be provided with rotor and motor output shaft in motor, motor output shaft end has profile of tooth and this end is meshed with reduction gears mechanism; Reduction gears mechanism comprises and is arranged on gear shaft on reduction gear casing and output shaft, gear shaft is coordinated by axle key and is connected with one-level gear, and gear shaft is provided with profile of tooth is meshed with secondary gear, secondary gear is coordinated by axle key and is connected with output shaft, and above-mentioned one-level gear is meshed with the toothed end of motor output shaft; One-level gear and secondary gear are helical gear; Gear shaft and be equipped with bearing between output shaft and reduction gear casing.But when power failure or electrical fault, the moving link be fixed on output shaft may be in irrational position, cannot reset smoothly.
Model utility content
The utility model is to provide a kind of adjustable twin worm speed reducer, it mainly solves speed reducer existing for prior art when running into power failure or electrical fault, the moving link that speed reducer is fixed on output shaft may be in irrational position, the technical problem that cannot to reset smoothly etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
The adjustable twin worm speed reducer of one of the present utility model, comprise casing, one-level worm screw is provided with in described casing, one-level worm screw is connected with motor by the motor key on motor shaft, one-level worm meshing has first-stage worm gear, first-stage worm gear is connected with worm and worm gear axle by key, worm screw on worm and worm gear axle engages with second-stage worm gear, second-stage worm gear connects output worm-wheel shaft by lockup device, export the push rod that worm-wheel shaft inside is provided with the output worm-wheel shaft that lockup device can be made to throw off or connect, the end exporting worm-wheel shaft through hole is provided with guide rail, guide rail has spiral-shaped guide groove, the jacking block that can contact push rod is provided with in guide rail, jacking block is slidably connected in spiral-shaped guide groove by screw.Guide rail is provided with can for the helical guide groove of screw movement, when electrical fault or when having a power failure, be fixed on the moving link exported on worm-wheel shaft and may be in irrational position, at this moment jacking block can be rotated by inner hexagon spanner, screw on jacking block moves along the helical guide groove of guide rail, make push rod promote feather key to move in feather key moving trough, feather key can be controlled like this and throw off second-stage worm gear.Due to push rod will be moved comparatively not easily, push rod conveniently moving should be solved, the volume shared by whole speed reducer can not be increased again, therefore have employed to be inlaid in and export guide rail in worm-wheel shaft and jacking block, so both solve transmission problem, do not increase volume again.
As preferably, described lockup device includes the worm wheel aperture, the feather key draw-in groove that are provided with in second-stage worm gear, second-stage worm gear is connected with output worm-wheel shaft by feather key, feather key can slide in the feather key draw-in groove of the feather key moving trough of output worm-wheel shaft, second-stage worm gear, feather key cross-under is in output worm-wheel shaft, and the both sides of feather key arrange stage clip, push rod respectively.Feather key is between stage clip and push rod, and through exporting worm-wheel shaft, feather key can move left and right, after mobile push rod in the feather key moving trough exporting worm-wheel shaft, when being fixed in the feather key draw-in groove of second-stage worm gear under the effect of feather key at stage clip, namely can realizing second-stage worm gear drives and exporting worm-wheel shaft and rotate.Reverse mobile push rod in addition, makes feather key leave feather key draw-in groove, enters into worm wheel aperture place, and feather key and second-stage worm gear are thrown off, and like this, under external force, more easily can rotate the moving link be fixed on output worm-wheel shaft and be positioned at reasonable, safe position.
As preferably, the casing at described worm and worm gear axle place is provided with worm screw end cap, be provided with worm screw end bracket enclosed part between worm screw end cap and casing, the casing exporting worm-wheel shaft place is provided with worm-wheel shaft end cap, is provided with worm-wheel shaft end bracket enclosed part between worm-wheel shaft end cap and casing.Worm screw end bracket enclosed part, worm-wheel shaft end bracket enclosed part can prevent dust from invading.
As preferably, the casing of described stage clip outer end is provided with the first plug cock, and the casing of one-level worm end is provided with the second plug cock.First plug cock, the second plug cock place can be provided with O-ring seals, can play seal action like this.
As preferably, between one end of described output worm-wheel shaft and casing, be provided with the first worm-wheel shaft bearing, export between the other end of worm-wheel shaft and worm-wheel shaft end cap and be provided with the second worm-wheel shaft bearing.The rotation exporting worm-wheel shaft can be made so more smooth and easy.
As preferably, between one end of described worm and worm gear axle and casing, be provided with the first worm bearing, between the other end of worm and worm gear axle and worm screw end cap, be provided with the second worm bearing.The rotation of worm and worm gear axle can be made so more smooth and easy.
As preferably, between the inner of described guide rail and the through hole exporting worm-wheel shaft, be provided with worm-wheel shaft inner oil seal.Worm-wheel shaft inner oil seal can prevent the lubricant oil of casing from seepage the through hole exporting worm-wheel shaft.
As preferably, between the two ends of described output worm-wheel shaft and casing, worm-wheel shaft end cap, be respectively equipped with a worm-wheel shaft oil sealing; Electric engine oil seal is provided with between one-level worm screw and casing.Worm-wheel shaft oil sealing can prevent the lubricant oil of casing from seepage in casing.
As preferably, be provided with the 3rd worm bearing between described one-level worm screw and casing, the 3rd is provided with cutting ferrule between worm bearing and electric engine oil seal.
As preferably, described guide rail is made for strengthening nylon, and its external diameter has handling hole with the through hole entrance through hole interference fit exporting worm-wheel shaft, the end exporting worm-wheel shaft.Guide rail also can select other nonmetallic material that friction factor is larger, its external diameter with export the right hand inlet port through hole interference fit of worm-wheel shaft, be pushed down in the effect of external force and export worm-wheel shaft and become to be integrated.Can easily screw be screwed in the helical guide groove of guide rail by handling hole.
Therefore, the utility model is by the slip of feather key in second-stage worm gear, worm-wheel shaft is exported by connecting or throwing off, can be under external force, more easily make to be fixed on the moving link exported on worm-wheel shaft and be positioned at reasonable, safe position, this structure has easy to operate, safe and reliable feature.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is A-A cross-sectional view of Fig. 1;
Accompanying drawing 3 is that the K of Fig. 1 is to structural representation;
Accompanying drawing 4 is B-B cross-sectional view of Fig. 3;
Accompanying drawing 5 is C-C cross-sectional view of Fig. 1;
Accompanying drawing 6 for the utility model feather key move after structural representation;
Accompanying drawing 7 is the axle side structure schematic diagram of the utility model guide rail.
Component in figure, position and numbering: casing 1, one-level worm screw 2, motor shaft 3, motor key 4, motor 5, first-stage worm gear 6, worm and worm gear axle 7, second-stage worm gear 8, worm wheel aperture 9, feather key moving trough 10, feather key draw-in groove 11, feather key 12, export worm-wheel shaft 13, stage clip 14, push rod 15, guide rail 16, spiral-shaped guide groove 17, jacking block 18, screw 19, worm screw end cap 20, worm screw end bracket enclosed part 21, worm-wheel shaft end cap 22, worm-wheel shaft end bracket enclosed part 23, first plug cock 24, second plug cock 25, first worm-wheel shaft bearing 26, second worm-wheel shaft bearing 27, first worm bearing 28, second worm bearing 29, worm-wheel shaft inner oil seal 30, worm-wheel shaft oil sealing 31, electric engine oil seal 32, 3rd worm bearing 33, cutting ferrule 34, handling hole 35.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the adjustable twin worm speed reducer of one of this example, as shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, comprise casing 1, be provided with one-level worm screw 2 in casing 1, the casing of one-level worm end is provided with the second plug cock 25.Electric engine oil seal 32 is provided with between one-level worm screw and casing, 3rd worm bearing 33, 3rd is provided with cutting ferrule 34 between worm bearing and electric engine oil seal, one-level worm screw is connected with motor 5 by the motor key 4 on motor shaft 3, one-level worm meshing has first-stage worm gear 6, first-stage worm gear is connected with worm and worm gear axle 7 by key, worm screw on worm and worm gear axle engages with second-stage worm gear 8, the casing at worm and worm gear axle 7 place is provided with worm screw end cap 20, worm screw end bracket enclosed part 21 is provided with between worm screw end cap and casing, the first worm bearing 28 is provided with between one end of worm and worm gear axle and casing, the second worm bearing 29 is provided with between the other end of worm and worm gear axle and worm screw end cap 20.Second-stage worm gear is connected with output worm-wheel shaft 13 by feather key 12, worm wheel aperture 9, feather key draw-in groove 11 is provided with in second-stage worm gear, feather key 12 can slide in the feather key draw-in groove of the feather key moving trough 10 of output worm-wheel shaft, second-stage worm gear, feather key cross-under is in output worm-wheel shaft 13, the casing exporting worm-wheel shaft place is provided with worm-wheel shaft end cap 22, is provided with worm-wheel shaft end bracket enclosed part 23 between worm-wheel shaft end cap and casing.Export between one end of worm-wheel shaft and casing and be provided with the first worm-wheel shaft bearing 26, export between the other end of worm-wheel shaft and worm-wheel shaft end cap 22 and be provided with the second worm-wheel shaft bearing 27.Export between the two ends of worm-wheel shaft and casing, worm-wheel shaft end cap 22 and be respectively equipped with a worm-wheel shaft oil sealing 31.The both sides of feather key are respectively equipped with stage clip 14, push rod 15, and the casing of stage clip outer end is provided with the first plug cock 24, and push rod is located in the through hole of output worm-wheel shaft.The end exporting worm-wheel shaft through hole is provided with guide rail 16, is provided with worm-wheel shaft inner oil seal 30 between the inner of guide rail and the through hole exporting worm-wheel shaft 13.As Fig. 7, guide rail has spiral-shaped guide groove 17, be provided with the jacking block 18 that can contact push rod 15 in guide rail, jacking block is slidably connected in spiral-shaped guide groove by screw 19.Guide rail is made for strengthening nylon, and its external diameter has handling hole 35 with the through hole entrance through hole interference fit exporting worm-wheel shaft 13, the end exporting worm-wheel shaft 13.
Power drives one-level worm screw 2 to input by motor 5, motor shaft 3 by motor key 4, and one-level worm screw engages with first-stage worm gear 6, and first-stage worm gear 6 drives worm and worm gear axle 7 to rotate by worm gear connecting key; Worm screw on worm and worm gear axle 7 engages with second-stage worm gear 8, is driven and exports worm-wheel shaft 13 and rotate, realize the output of power by second-stage worm gear 8 and the feather key 12 exported between worm-wheel shaft 13.
The foregoing is only specific embodiment of the utility model, but structure characteristic of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and the change done or modification are all encompassed among the scope of the claims of the present utility model.
Claims (10)
1. an adjustable twin worm speed reducer, comprise casing (1), it is characterized in that being provided with one-level worm screw (2) in described casing (1), one-level worm screw is connected with motor (5) by the motor key (4) on motor shaft (3), one-level worm meshing has first-stage worm gear (6), first-stage worm gear is connected with worm and worm gear axle (7) by key, worm screw on worm and worm gear axle engages with second-stage worm gear (8), second-stage worm gear connects output worm-wheel shaft (13) by lockup device, export the push rod (15) that worm-wheel shaft inside is provided with the output worm-wheel shaft that lockup device can be made to throw off or connect, the end exporting worm-wheel shaft through hole is provided with guide rail (16), guide rail has spiral-shaped guide groove (17), the jacking block (18) that can contact push rod (15) is provided with in guide rail, jacking block is slidably connected in spiral-shaped guide groove by screw (19).
2. the adjustable twin worm speed reducer of one according to claim 1, it is characterized in that described lockup device includes worm wheel aperture (9), the feather key draw-in groove (11) be provided with in second-stage worm gear (8), second-stage worm gear (8) is connected with output worm-wheel shaft (13) by feather key (12), feather key can slide in the feather key draw-in groove (11) of the feather key moving trough (10) of output worm-wheel shaft, second-stage worm gear, feather key cross-under is in output worm-wheel shaft, and the both sides of feather key arrange stage clip (14), push rod (15) respectively.
3. the adjustable twin worm speed reducer of one according to claim 1 and 2, it is characterized in that the casing (1) at described worm and worm gear axle (7) place is provided with worm screw end cap (20), worm screw end bracket enclosed part (21) is provided with between worm screw end cap and casing, the casing (1) exporting worm-wheel shaft (13) place is provided with worm-wheel shaft end cap (22), is provided with worm-wheel shaft end bracket enclosed part (23) between worm-wheel shaft end cap and casing.
4. the adjustable twin worm speed reducer of one according to claim 2, it is characterized in that the casing (1) of described stage clip (14) outer end is provided with the first plug cock (24), the casing (1) of one-level worm screw (2) end is provided with the second plug cock (25).
5. the adjustable twin worm speed reducer of one according to claim 3, it is characterized in that being provided with the first worm-wheel shaft bearing (26) between one end of described output worm-wheel shaft (13) and casing (1), export between the other end of worm-wheel shaft and worm-wheel shaft end cap (22) and be provided with the second worm-wheel shaft bearing (27).
6. the adjustable twin worm speed reducer of one according to claim 3, it is characterized in that being provided with the first worm bearing (28) between one end of described worm and worm gear axle (7) and casing (1), between the other end of worm and worm gear axle (7) and worm screw end cap (20), be provided with the second worm bearing (29).
7. the adjustable twin worm speed reducer of one according to claim 1 and 2, is characterized in that being provided with worm-wheel shaft inner oil seal (30) between the inner of described guide rail (16) and the through hole exporting worm-wheel shaft (13).
8. the adjustable twin worm speed reducer of one according to claim 3, is characterized in that being respectively equipped with a worm-wheel shaft oil sealing (31) between the two ends of described output worm-wheel shaft (13) and casing (1), worm-wheel shaft end cap (22); Electric engine oil seal (32) is provided with between one-level worm screw (2) and casing.
9. the adjustable twin worm speed reducer of one according to claim 8, is characterized in that being provided with the 3rd worm bearing (33) between described one-level worm screw (2) and casing (1), is provided with cutting ferrule (34) between the 3rd worm bearing and electric engine oil seal (32).
10. the adjustable twin worm speed reducer of one according to claim 1 and 2, it is characterized in that described guide rail (16) is made for strengthening nylon, its external diameter has handling hole (35) with the through hole entrance through hole interference fit exporting worm-wheel shaft (13), the end exporting worm-wheel shaft (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420365372.XU CN204175875U (en) | 2014-07-04 | 2014-07-04 | A kind of adjustable twin worm speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420365372.XU CN204175875U (en) | 2014-07-04 | 2014-07-04 | A kind of adjustable twin worm speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175875U true CN204175875U (en) | 2015-02-25 |
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ID=52564686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420365372.XU Expired - Fee Related CN204175875U (en) | 2014-07-04 | 2014-07-04 | A kind of adjustable twin worm speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196963A (en) * | 2014-07-04 | 2014-12-10 | 浙江理工大学 | Adjustable type double-worm speed reducer |
| CN104925273A (en) * | 2015-05-13 | 2015-09-23 | 上海宇航系统工程研究所 | Manual unlocking device |
-
2014
- 2014-07-04 CN CN201420365372.XU patent/CN204175875U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196963A (en) * | 2014-07-04 | 2014-12-10 | 浙江理工大学 | Adjustable type double-worm speed reducer |
| CN104196963B (en) * | 2014-07-04 | 2017-04-12 | 浙江理工大学 | Adjustable type double-worm speed reducer |
| CN104925273A (en) * | 2015-05-13 | 2015-09-23 | 上海宇航系统工程研究所 | Manual unlocking device |
| CN104925273B (en) * | 2015-05-13 | 2017-02-01 | 上海宇航系统工程研究所 | Manual unlocking device |
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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: 20150225 Termination date: 20180704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |