CN204852179U - Two worm gear transmission mechanisms - Google Patents
Two worm gear transmission mechanisms Download PDFInfo
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- CN204852179U CN204852179U CN201520571152.7U CN201520571152U CN204852179U CN 204852179 U CN204852179 U CN 204852179U CN 201520571152 U CN201520571152 U CN 201520571152U CN 204852179 U CN204852179 U CN 204852179U
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- worm
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- shaft
- transmission mechanism
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Abstract
The utility model discloses a two worm gear transmission mechanisms, include the transmission case and arrange its inside two worm gear drive disk assemblys in to and locate the drive gear of worm wheel axle head, wherein, the transmission case includes box and case lid, two worm gear drive disk assemblys include the worm and respectively rather than the meshing transmission and locate the first worm wheel and the second worm wheel of its two opposite sides, first worm wheel and second worm wheel are located respectively on first worm -wheel shaft and the second worm -wheel shaft, it is epaxial that the worm is located to the worm. The deformation of avoiding each driving medium contacting area that can better is set up respectively rather than meshing driven first worm wheel and second worm wheel at two opposite sides of worm because of having adopted to each drive gear's engagement has been improved, the requirement of satisfying the power transmission that can be better.
Description
Technical field
The utility model relates to technical field of transmission equipment, particularly relates to a kind of two Worm wheel transmission mechanism.
Background technique
Worm Wheel System is used for diaxon and is crossed as 90 degree but each other in not only not parallel but also disjoint situation, usually, single worm screw is driving link, and single worm gear is Passive part, flank of tooth bearing load.Due to the distortion of each several part stressed in transmission process, cause tooth contact state to change, easily produce tooth contact state bad, there is back lash etc., finally cause during worm and gear transferring power and do not reach job requirement.
Disclosing only for auxiliary understanding design of the present utility model and technological scheme of above background technique content, it must not belong to the prior art of present patent application, show that not having tangible proof the applying date of foregoing in present patent application is in disclosed situation, above-mentioned background technology should not be used for novelty and the creativeness of evaluating the application.
Model utility content
The purpose of this utility model is to propose a kind of two Worm wheel transmission mechanism, and the bad grade of tooth contact state existed to solve above-mentioned prior art finally causes the technical problem not reaching job requirement during worm and gear transferring power.
For this reason, the utility model proposes a kind of two Worm wheel transmission mechanism, comprise transmission case and the double worm and gear transmission part being placed in its inside, and be located at the driving gear of worm gear axle head, wherein, described transmission case comprises casing and case lid; Described double worm and gear transmission part comprises worm screw and is located at the first worm gear and second worm gear of two opposite side with its engagement driving respectively, described first worm gear and the second worm gear are located on the first worm-wheel shaft and the second worm-wheel shaft respectively, and described worm screw is located on worm shaft; Described driving gear comprises the first gear, the second gear and the 3rd gear, the axle head of described first worm-wheel shaft and the second worm-wheel shaft is located at respectively by described first gear, the second gear, the axle head of its gear shaft is located at by described 3rd gear, described first gear, the second gear and the 3rd gear all expose to described case lid, and described second gear and the 3rd gear engage each other.
Preferably, the utility model can also have following technical characteristics:
Described worm screw is provided at two sections on described worm shaft, respectively corresponding described first worm gear and the second worm gear.
Described second gear is fixed by adjustable expansion sleeve, under working state, described first gear and the 3rd gear are on same axis, and both distance between shafts is amplified to described first gear by described adjustable expansion sleeve and the 3rd gear is the external engagement of gapless.
This pair of Worm wheel transmission mechanism also comprises the first adjustment spring and the second adjustment spring, the two ends of described first adjustment spring abut the wheel shaft of described first worm-wheel shaft and described 3rd gear respectively, and the two ends of described second adjustment spring abut the wheel shaft of described second worm-wheel shaft and described 3rd gear respectively.
Described first adjustment spring and the second adjustment spring are respectively constant force spring.
The wheel shaft of described 3rd gear is also provided with the positioning block with adjustment spring retention chamber, described spring retention chamber has two, holds described first adjustment spring and the second adjustment spring respectively.
Described second gear is fixed by adjustable expansion sleeve.
The transmission driving link of this pair of Worm wheel transmission mechanism is the ratchet being located at a described worm shaft axle head.
Another axle head of described worm shaft is provided with for regulating this pair of Worm wheel transmission mechanism to the pull bar link plate of working position and off-position.
The beneficial effect that the utility model is compared with the prior art comprises: arrange respectively and the first worm gear of its engagement driving and the second worm gear at worm screw two opposite sides because have employed, the distortion of each driving component contact position can be avoided preferably, thus improve the engagement of each driving gear, the requirement of transmission of power can be better met.
In preferred version, owing to have employed the first adjustment spring and the second adjustment spring, what can adjust and balance between described first gear and the 3rd gear be stressed, and enable described first gear and the 3rd gear remain the external engagement of gapless, avoid the generation of tooth contact state unfavorable condition.
Accompanying drawing explanation
Fig. 1 is the exploded view of the utility model embodiment one.
Fig. 2 is the partial structurtes schematic diagram of the utility model embodiment one.
Fig. 3 is another partial structurtes schematic diagram of the utility model embodiment one.
Embodiment
Contrast accompanying drawing below in conjunction with embodiment the utility model is described in further detail.It is emphasized that following explanation is only exemplary, instead of in order to limit the scope of the invention and apply.
With reference to the following drawings 1-3, will describe the embodiment of non-limiting and nonexcludability, wherein identical reference character represents identical parts, unless stated otherwise.
Embodiment one:
Two Worm wheel transmission mechanisms of the present embodiment comprise transmission case and are placed in the double worm and gear transmission part of its inside, and are located at the driving gear of worm gear axle head, wherein, as Figure 1-3,
Described transmission case comprises casing 15 and case lid 17.
Described double worm and gear transmission part comprises worm screw 24 and is located at the first worm gear 251 and the second worm gear 252 of two opposite side with its engagement driving respectively, described first worm gear 251 and the second worm gear 252 are located on the first worm-wheel shaft 7 and the second worm-wheel shaft 27 respectively, and described worm screw 24 is located on worm shaft 13.
Described driving gear comprises the first gear 2, second gear 11 and the 3rd gear 12, the axle head of described first worm-wheel shaft 7 and the second worm-wheel shaft 27 is located at respectively by described first gear 2, second gear 11, the axle head of its gear shaft 16 is located at by described 3rd gear 12, described first gear 2, second gear 11 and the 3rd gear 12 all expose to described case lid 17, and described second gear 11 and the 3rd gear 12 engage each other.
In the present embodiment, described worm screw 24 is provided at two sections on described worm shaft 13, respectively corresponding described first worm gear 251 and the second worm gear 252; Obviously, described worm screw 24 also can be one section that unites two into one, and two position is corresponding described first worm gear 251 and the second worm gear 252 respectively.Described second gear 11 is fixed by adjustable expansion sleeve 26, in working order, described first gear 2 and the 3rd gear 27 are on same axis, and both distance between shafts is amplified to described first gear 2 by described adjustable expansion sleeve 26 and the 3rd gear 27 is the external engagement of gapless, as shown in Figure 3, described first gear 2 and the 3rd gear 27 respectively with described driving rack 9 tight mesh.
The transmission driving link of this pair of Worm wheel transmission mechanism is the ratchet 14 being located at described worm shaft 13 1 axle heads, and obviously, described ratchet 14 also can be sent parts to by other interval and replace, and is not limited to the concrete structure in figure.
In addition, in this pair of Worm wheel transmission mechanism, another axle head of described worm shaft 13 is provided with for regulating this pair of Worm wheel transmission mechanism to the pull bar link plate 20 of working position and off-position, the modes such as pull bar can be threaded are connected with described pull bar link plate 20, and change its present position by pull bar.
Embodiment two:
The main distinction of the present embodiment and previous embodiment one is: the two Worm wheel transmission mechanisms in this embodiment also comprise the first adjustment spring 31 and second and adjust spring 23, the two ends of described first adjustment spring 31 abut the wheel shaft of described first worm-wheel shaft 7 and described 3rd gear 12 respectively, and the two ends of described second adjustment spring 23 abut the wheel shaft of described second worm-wheel shaft 27 and described 3rd gear 12 respectively.One preferably way be, the wheel shaft of described 3rd gear 12 is also provided with the positioning block 10 with adjustment spring retention chamber (two) 101,102, described two spring retention chamber 101,102 hold described first adjustment spring 31 and the second adjustment spring 23 respectively.Further, described first adjustment spring 31 and the second adjustment spring 23 are respectively constant force spring.
Those skilled in the art will recognize that, it is possible for making numerous accommodation to above description, so embodiment and accompanying drawing are only used to describe one or more particular implementation.
Although described and described and be counted as example embodiment of the present utility model, it will be apparent to those skilled in the art that and can make various change and replacement to it, and spirit of the present utility model can not have been departed from.In addition, many amendments can be made so that particular case is fitted to religious doctrine of the present utility model, and the utility model central concept described here can not be departed from.So the utility model is not limited to specific embodiment disclosed here, but the utility model also may comprise all embodiments and equivalent thereof that belong to the utility model scope.
Claims (8)
1. a two Worm wheel transmission mechanism, is characterized in that: comprise transmission case and the double worm and gear transmission part being placed in its inside, and be located at the driving gear of worm gear axle head, wherein,
Described transmission case comprises casing and case lid;
Described double worm and gear transmission part comprises worm screw and is located at the first worm gear and second worm gear of two opposite side with its engagement driving respectively, described first worm gear and the second worm gear are located on the first worm-wheel shaft and the second worm-wheel shaft respectively, and described worm screw is located on worm shaft;
Described driving gear comprises the first gear, the second gear and the 3rd gear, the axle head of described first worm-wheel shaft and the second worm-wheel shaft is located at respectively by described first gear, the second gear, the axle head of its gear shaft is located at by described 3rd gear, described first gear, the second gear and the 3rd gear all expose to described case lid, and described second gear and the 3rd gear engage each other.
2. two Worm wheel transmission mechanism as claimed in claim 1, is characterized in that: described worm screw is provided at two sections on described worm shaft, respectively corresponding described first worm gear and the second worm gear.
3. two Worm wheel transmission mechanism as claimed in claim 1, it is characterized in that: described second gear is fixed by adjustable expansion sleeve, under working state, described first gear and the 3rd gear are on same axis, and both distance between shafts is amplified to described first gear by described adjustable expansion sleeve and the 3rd gear is the external engagement of gapless.
4. two Worm wheel transmission mechanism as claimed in claim 1, it is characterized in that: this pair of Worm wheel transmission mechanism also comprises the first adjustment spring and the second adjustment spring, the two ends of described first adjustment spring abut the wheel shaft of described first worm-wheel shaft and described 3rd gear respectively, and the two ends of described second adjustment spring abut the wheel shaft of described second worm-wheel shaft and described 3rd gear respectively.
5. two Worm wheel transmission mechanism as claimed in claim 4, is characterized in that: described first adjustment spring and the second adjustment spring are respectively constant force spring.
6. the two Worm wheel transmission mechanisms as described in claim 4 or 5, it is characterized in that: the wheel shaft of described 3rd gear is also provided with the positioning block with adjustment spring retention chamber, described spring retention chamber has two, holds described first adjustment spring and the second adjustment spring respectively.
7. two Worm wheel transmission mechanism as claimed in claim 1, is characterized in that: the transmission driving link of this pair of Worm wheel transmission mechanism is the ratchet being located at a described worm shaft axle head.
8. Worm wheel transmission mechanism as claimed in claim 7 two, is characterized in that: another axle head of described worm shaft is provided with for regulating this pair of Worm wheel transmission mechanism to the pull bar link plate of working position and off-position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571152.7U CN204852179U (en) | 2015-07-31 | 2015-07-31 | Two worm gear transmission mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520571152.7U CN204852179U (en) | 2015-07-31 | 2015-07-31 | Two worm gear transmission mechanisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852179U true CN204852179U (en) | 2015-12-09 |
Family
ID=54742729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520571152.7U Active CN204852179U (en) | 2015-07-31 | 2015-07-31 | Two worm gear transmission mechanisms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852179U (en) |
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2015
- 2015-07-31 CN CN201520571152.7U patent/CN204852179U/en active Active
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |