CN204267610U - Allow the worm gear box of output shaft axial float - Google Patents
Allow the worm gear box of output shaft axial float Download PDFInfo
- Publication number
- CN204267610U CN204267610U CN201420716295.8U CN201420716295U CN204267610U CN 204267610 U CN204267610 U CN 204267610U CN 201420716295 U CN201420716295 U CN 201420716295U CN 204267610 U CN204267610 U CN 204267610U
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- China
- Prior art keywords
- gear
- output shaft
- box
- worm
- helical gear
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Abstract
The utility model relates to a kind of reducing gear, especially relates to a kind of worm gear box allowing output shaft axial float.Its accuracy requirement mainly solving the speed reducer assembling existing for prior art is higher; output shaft is in the axial direction owing to carrying out play; therefore speed reducer in use produces vibration output shaft can be made stuck, thus causes the technical problem of the faults such as shutdown etc.The utility model comprises gear-box (1) and gear box cover (2), worm screw (3) is provided with in described gear-box (1), worm screw is connected with motor (5) by coupling (4), and worm meshing has helical gear (6), and helical gear is connected with helical gear output shaft (7).
Description
Technical field
The utility model relates to a kind of reducing gear, especially relates to a kind of worm gear box allowing output shaft axial float.
Background technique
At present, the gear reduction unit of being used widely, worm-gear speed reducer, be subject to volume restriction, its speed ratio is less than normal, and its transmission direction is generally parallel input output and can not meets some existing large speed ratios mini-plant having again vertical-transmission direction to require that slows down and install and use.Chinese patent discloses a kind of double worm gear reducing mechanism (Authorization Notice No.: CN 201250880Y), it comprises worm type of reduction gearing, be provided with two worm type of reduction gearings, worm screw on two worm type of reduction gearings is linked together by the coupling of axial rotation adjustable angle, realizes synchronization; Have at least the worm screw two ends of all to stretch out in himself reducer shell in two worm type of reduction gearings, the input shaft of one end as this reducing gear of coupling is not installed on this worm screw; Output shaft on each worm type of reduction gearing is connected to a small gear; With gearwheel engagement driving while of small gear, and using the transmission shaft at gearwheel place as the output shaft of this reducing gear; The two ends of the worm screw of two worm type of reduction gearings all stretch out in the housing of respective retarder itself, two worm type of reduction gearings and respectively connected small gear, there is identical specification respectively, the coupling of the axial rotation adjustable angle used is made up of two half-couplings, one of them half-coupling is uniformly distributed some screws, screw on another half-coupling described in correspondence is provided with the elongated hole of some arcs, is fastenedly connected between two half-couplings by screw.But the accuracy requirement of this speed reducer assembling is higher, output shaft is in the axial direction owing to carrying out play, and therefore speed reducer in use produces vibration output shaft can be made stuck, thus causes the faults such as shutdown.
Model utility content
The utility model is to provide a kind of worm gear box allowing output shaft axial float; its accuracy requirement mainly solving the speed reducer assembling existing for prior art is higher; output shaft is in the axial direction owing to carrying out play; therefore speed reducer in use produces vibration output shaft can be made stuck, thus causes the technical problem of the faults such as shutdown etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
The worm gear box of permission output shaft axial float of the present utility model, comprise gear-box and gear box cover, be provided with worm screw in described gear-box, worm screw is connected with motor by coupling, and worm meshing has helical gear, and helical gear is connected with helical gear output shaft.The utility model helical gear replaces worm gear, helical gear output shaft can be allowed to have larger play in the axial direction, thus can not form stuck phenomenon.Helical gear, owing to not being engage completely with worm screw, can produce certain interval, therefore can ensure that helical gear output shaft moves in the axial direction.
As preferably, the helical gear output shaft outlet port of described gear-box is provided with limiting stopper, and the inner of limiting stopper is provided with the conical surface.After helical gear output shaft axial float, limiting stopper can limit the distance that helical gear output shaft moves axially, and the conical surface can play buffer function.
As preferably, be provided with bearing between described gear-box and helical gear output shaft, bearing is positioned on gear-box by the nut of gear-box outer end.Helical gear output shaft rotation can be made more smooth and easy by bearing, the mounting point of helical gear output shaft can be adjusted by nut.
As preferably, the two ends of described worm screw are all provided with bearing.Bearing can make worm screw operably more smooth and easy.
As preferably, described helical gear output shaft is located in sleeve, and sleeve is fixed on gear-box, is provided with bearing between sleeve and helical gear output shaft.Sleeve can play dust-proof effect, and bearing can make the helical gear output shaft in sleeve more smooth and easy rotatably.
Therefore, the utility model helical gear replaces worm gear to be connected with worm screw, makes output shaft can carry out play within the specific limits, thus when speed reducer produces vibration, stuck phenomenon can not occur, prevent the generation of the faults such as shutdown, simple and reasonable for structure.
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.
Component, position and numbering in figure: gear-box 1, gear box cover 2, worm screw 3, coupling 4, motor 5, helical gear 6, helical gear output shaft 7, limiting stopper 8, the conical surface 9, bearing 10, nut 11, sleeve 12.
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 worm gear box of the permission output shaft axial float of this example, as shown in Figure 1, Figure 2, comprises gear-box 1 and gear box cover 2, worm screw 3 is provided with in gear-box, worm screw is connected with motor 5 by coupling 4, and worm meshing has helical gear 6, and helical gear is connected with helical gear output shaft 7.Helical gear output shaft 7 outlet port of gear-box is provided with limiting stopper 8, and the inner of limiting stopper is provided with the conical surface 9.Be provided with bearing 10 between gear-box and helical gear output shaft 7, bearing is positioned on gear-box by the nut 11 of gear-box outer end.The two ends of worm screw are all provided with bearing 10.Helical gear output shaft is located in sleeve 12, and sleeve is fixed on gear-box, is provided with bearing 10 between sleeve and helical gear output shaft.
During use, loaded the machinery equipment needing transmission, after motor 5 operates, drive worm screw 3 to rotate by coupling 4, worm screw drives helical gear output shaft 7 to rotate by helical gear 6, thus can other mechanical part of transmission.
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 (5)
1. one kind allows the worm gear box of output shaft axial float, comprise gear-box (1) and gear box cover (2), it is characterized in that being provided with worm screw (3) in described gear-box (1), worm screw is connected with motor (5) by coupling (4), worm meshing has helical gear (6), and helical gear is connected with helical gear output shaft (7).
2. the worm gear box of permission output shaft axial float according to claim 1, it is characterized in that helical gear output shaft (7) outlet port of described gear-box (1) is provided with limiting stopper (8), the inner of limiting stopper is provided with the conical surface (9).
3. the worm gear box of permission output shaft axial float according to claim 1 and 2, it is characterized in that being provided with bearing (10) between described gear-box (1) and helical gear output shaft (7), bearing is positioned on gear-box by the nut (11) of gear-box outer end.
4. the worm gear box of permission output shaft axial float according to claim 1 and 2, is characterized in that the two ends of described worm screw (3) are all provided with bearing (10).
5. the worm gear box of permission output shaft axial float according to claim 1 and 2, it is characterized in that described helical gear output shaft (7) is located in sleeve (12), sleeve is fixed on gear-box (1), is provided with bearing (10) between sleeve and helical gear output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716295.8U CN204267610U (en) | 2014-11-26 | 2014-11-26 | Allow the worm gear box of output shaft axial float |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716295.8U CN204267610U (en) | 2014-11-26 | 2014-11-26 | Allow the worm gear box of output shaft axial float |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267610U true CN204267610U (en) | 2015-04-15 |
Family
ID=52802481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420716295.8U Expired - Fee Related CN204267610U (en) | 2014-11-26 | 2014-11-26 | Allow the worm gear box of output shaft axial float |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267610U (en) |
-
2014
- 2014-11-26 CN CN201420716295.8U patent/CN204267610U/en not_active Expired - Fee Related
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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: 20150415 Termination date: 20211126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |