CN202188024U - Gear box and shaft neck centering device for gear shaft of gear box - Google Patents
Gear box and shaft neck centering device for gear shaft of gear box Download PDFInfo
- Publication number
- CN202188024U CN202188024U CN2011202937152U CN201120293715U CN202188024U CN 202188024 U CN202188024 U CN 202188024U CN 2011202937152 U CN2011202937152 U CN 2011202937152U CN 201120293715 U CN201120293715 U CN 201120293715U CN 202188024 U CN202188024 U CN 202188024U
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- China
- Prior art keywords
- gear shaft
- axle journal
- cone sleeve
- gear
- hole
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- 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 - Fee Related
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Abstract
The utility model discloses a shaft neck centering device for a gear shaft, which comprises an inner cone sleeve, an outer cone sleeve and preloaded screws. The inner cone sleeve is provided with a central hole matched with a shaft neck of the gear shaft, a conical surface is arranged on the outer side of the inner cone sleeve, a first locating table is arranged at the top of the inner cone sleeve, and a plurality of preloaded holes are arranged on the first locating table. A conical surface matched with the conical surface of the inner cone sleeve is arranged on the inner side of the outer cone sleeve, an outer cylindrical surface matched with the inner circumferential face of a bearing seat is arranged on the outer side of the outer cone sleeve, a plurality of preloaded screw holes corresponding to the preloaded holes are arranged on the outer cone sleeve, a second locating table is arranged at the top of the outer cone sleeve, and a plurality of installation holes are arranged on the second locating table. One ends of the preloaded screws penetrate through the preloaded holes to be screwed tightly on the preloaded screw holes. The shaft neck centering device removes diameter clearance between the inner cone sleeve and the shaft neck by controlling screwing amount of preloaded bolts, thereby accurately centering for the gear shaft, improving concentricity of the gear shaft, and further guaranteeing reliability of meshing adjustment of a gear set. A gear box with the shaft neck centering device for the gear shaft is further disclosed.
Description
Technical field
The utility model relates to the gear-box technical field, particularly a kind of gear-box and gear shaft axle journal centring means thereof.
Background technique
At present, domestic gear shaft many high-power, slow-speed of revolution gear-box all adopts sliding bearing to support.Because operating mode is required; The bigger radial clearance of the general employing of sliding bearing; But big radial clearance will cause the gear shaft concentricity bad; Then cause the engagement adjustment reliability of gear pair not high, and the bad situations such as gear contact inequality, unbalance loading that will cause of engagement adjustment, severe patient even cause accident such as broken teeth.
Therefore; When carrying out gear pair engagement adjustment, how to reduce sliding bearing and axle journal gap, improve the concentricity of gear shaft, thereby reach reasonable centering gear shaft; Guarantee the reliability of gear pair adjustment, become the technical problem that those skilled in the art need to be resolved hurrily.
The model utility content
In view of this, the utility model provides a kind of gear-box and gear shaft axle journal centring means thereof, reducing sliding bearing and axle journal gap, to improve the concentricity of gear shaft, thereby reaches the reasonable centering to gear shaft, guarantees the reliability of gear pair adjustment.
For realizing above-mentioned purpose, the utility model provides following technological scheme:
A kind of gear shaft axle journal centring means comprises:
Inner conical drogue, it has the center hole that cooperates with the gear shaft axle journal, and its outside has conical surface, and the top has first positioning table, offers some pretensions hole on said first positioning table;
External conical sleeve; Its inboard has the conical surface that cooperates with the conical surface of said inner conical drogue; Its outside has the outer cylinder surface that cooperates with the inner peripheral surface of bearing support; Offer the corresponding pretension screw hole in some and said pretension hole on it, and its top is provided with second positioning table, offers some mounting holes on said second positioning table;
Pretension screw, one of which end pass said pretension hole, are tightened on the said pretension screw hole.
Preferably, in said gear shaft neck centring means, said inner conical drogue is a split type structure.
Preferably, in said gear shaft neck centring means, said external conical sleeve is a split type structure.
Preferably, in said gear shaft neck centring means, be provided with shock absorber between the top of said first positioning table and said external conical sleeve.
Preferably, in said gear shaft neck centring means, said shock absorber is the rubber shock absorber.
Preferably, in said gear shaft neck centring means, said pretension hole is a plurality of, and circumferentially evenly distributing along said inner conical drogue.
Preferably, in said gear shaft neck centring means, said mounting hole is a plurality of, and circumferentially evenly distributing along said external conical sleeve.
A kind of gear-box; Comprise gear shaft and bearing support; Also comprise as above each described gear shaft axle journal centring means and fixing bolt, the mounting hole that said fixing bolt passes on the said external conical sleeve is tightened on the said bearing support, and said gear shaft is inserted in the center hole of said inner conical drogue.
Can find out that from above-mentioned technological scheme the utility model provides gear shaft axle journal centring means, comprising: inner conical drogue; It has the center hole that cooperates with the gear shaft axle journal; Its outside has conical surface, and the top has first positioning table, offers some pretensions hole on said first positioning table; External conical sleeve; Its inboard has the conical surface that cooperates with the conical surface of said inner conical drogue; Its outside has the outer cylinder surface that cooperates with the inner peripheral surface of bearing support; Offer the corresponding pretension screw hole in some and said pretension hole on it, and its top is provided with second positioning table, offers some mounting holes on said second positioning table; Pretension screw, one of which end pass said pretension hole, are tightened on the said pretension screw hole.
Based on above-mentioned setting; The gear shaft axle journal centring means that the utility model provides in use; External conical sleeve is fixed on the bearing support through fixing bolt, and its outer cylinder surface cooperates with the endoporus of bearing support, makes centering reliable through the external cylindrical surface of male cone (strobilus masculinus) and the coaxality of bearing support inner cylindrical surface.External conical sleeve cooperates through conical surface with inner conical drogue; Method through the control processing technology guarantees the precision that conical surface cooperates; Inner conical drogue adopts the cylndrical surface to cooperate with the axle journal of gear shaft, eliminates the diametric clearance of inner conical drogue and axle journal through the screw-in amount of control pretension bolt, thereby gear shaft is accurately felt relieved; Improve the concentricity of gear shaft, and then guarantee the reliability of gear pair engagement adjustment.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the gear shaft axle journal centring means that Fig. 1 provides for the utility model embodiment;
The mounting structure schematic representation of the gear shaft axle journal centring means that Fig. 2 provides for the utility model embodiment.
Embodiment
The utility model discloses a kind of gear-box and gear shaft axle journal centring means thereof, reducing sliding bearing and axle journal gap, to improve the concentricity of gear shaft, thereby reach reasonable centering, guarantee the reliability of gear pair adjustment gear shaft.
To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1 and Fig. 2, the structural representation of the gear shaft axle journal centring means that Fig. 1 provides for the utility model embodiment; The mounting structure schematic representation of the gear shaft axle journal centring means that Fig. 2 provides for the utility model embodiment.
The gear shaft axle journal centring means that the utility model provides comprises inner conical drogue 3, external conical sleeve 4 and pretension screw 2.Wherein, inner conical drogue 3 has the center hole that cooperates with the gear shaft axle journal, and this center hole is a cylindrical hole, and its outside has conical surface, and the top has first positioning table, offers some pretensions hole on first positioning table.
The inboard of external conical sleeve 4 has the conical surface that cooperates with the conical surface of inner conical drogue 3; Its outside has the outer cylinder surface that cooperates with the inner peripheral surface of bearing support 5; Offer some pretension screw holes corresponding on it with the pretension hole; And its top is provided with second positioning table, offers some mounting holes on second positioning table.One end of pretension screw 2 passes the pretension hole, is tightened on the pretension screw hole.
The gear shaft axle journal centring means that the utility model provides in use; External conical sleeve 4 is fixed on the bearing support 5 through fixing bolt 1; Its outer cylinder surface cooperates with the endoporus of bearing support 5, makes centering reliable through the external cylindrical surface of male cone (strobilus masculinus) and the coaxality of bearing support 5 inner cylindrical surfaces.External conical sleeve 4 and inner conical drogue 3 cooperate through conical surface; Method through the control processing technology guarantees the precision that conical surface cooperates; Inner conical drogue 3 adopts the cylndrical surface to cooperate with the axle journal of gear shaft, eliminates the diametric clearance of inner conical drogue 3 and axle journal through the screw-in amount of control pretension bolt 2, thereby gear shaft is accurately felt relieved; Improve the concentricity of gear shaft, and then guarantee the reliability of gear pair engagement adjustment.
For the ease of assembling and debugging, inner conical drogue 3 is preferably split type structure, and external conical sleeve 4 also is preferably split type structure.The inner conical drogue 3 and the external conical sleeve 4 of the utility model all adopt modified heat treatment, improve hardness, intensity and the non-deformability of whole device.
Preferably be provided with shock absorber between the top of first positioning table and external conical sleeve 4, shock absorber is the rubber shock absorber.The utility model can be adjusted the pretightening force of pretension bolt 2 through shock absorber, and the pretension hole is a plurality of, and distributes along the circumferentially even of inner conical drogue 3, to guarantee to apply the uniformity of pretightening force.Mounting hole also is a plurality of, and distributes along the circumferentially even of external conical sleeve 4, to guarantee the stable installation property of external conical sleeve 4.
The gear-box that the utility model provides; Comprise gear shaft and bearing support 5, wherein, also comprise as above embodiment's disclosed gear shaft axle journal centring means and fixing bolt 1; The mounting hole that fixing bolt 1 passes on the external conical sleeve 4 is tightened on the bearing support 5, and gear shaft is inserted in the center hole of inner conical drogue 3.
The utility model solves effectively in assembly process and adjusts the not high defective of reliability because of gear shaft support place excesssive gap, the bad engagement that causes of gear shaft concentricity, and the utility model processing is simple, is easy to promote the use of.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiments shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. a gear shaft axle journal centring means is characterized in that, comprising:
Inner conical drogue (3), it has the center hole that cooperates with the gear shaft axle journal, and its outside has conical surface, and the top has first positioning table, offers some pretensions hole on said first positioning table;
External conical sleeve (4); Its inboard has the conical surface that cooperates with the conical surface of said inner conical drogue (3); Its outside has the outer cylinder surface that cooperates with the inner peripheral surface of bearing support (5); Offer the corresponding pretension screw hole in some and said pretension hole on it, and its top is provided with second positioning table, offers some mounting holes on said second positioning table;
Pretension screw (2), one of which end pass said pretension hole, are tightened on the said pretension screw hole.
2. gear shaft axle journal centring means as claimed in claim 1 is characterized in that said inner conical drogue (3) is a split type structure.
3. gear shaft axle journal centring means as claimed in claim 2 is characterized in that said external conical sleeve (4) is a split type structure.
4. gear shaft axle journal centring means as claimed in claim 1 is characterized in that, is provided with shock absorber between the top of said first positioning table and said external conical sleeve (4).
5. gear shaft axle journal centring means as claimed in claim 4 is characterized in that said shock absorber is the rubber shock absorber.
6. like each described gear shaft axle journal centring means of claim 1-5, it is characterized in that said pretension hole is a plurality of, and circumferentially evenly distributing along said inner conical drogue (3).
7. like each described gear shaft axle journal centring means of claim 1-5, it is characterized in that said mounting hole is a plurality of, and circumferentially evenly distributing along said external conical sleeve (4).
8. gear-box; Comprise gear shaft and bearing support (5); It is characterized in that; Comprise that also the mounting hole that said fixing bolt (1) passes on the said external conical sleeve (4) is tightened on the said bearing support (5) like each described gear shaft axle journal centring means of claim 1-7 and fixing bolt (1), said gear shaft is inserted in the center hole of said inner conical drogue (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202937152U CN202188024U (en) | 2011-08-12 | 2011-08-12 | Gear box and shaft neck centering device for gear shaft of gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202937152U CN202188024U (en) | 2011-08-12 | 2011-08-12 | Gear box and shaft neck centering device for gear shaft of gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202188024U true CN202188024U (en) | 2012-04-11 |
Family
ID=45919477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202937152U Expired - Fee Related CN202188024U (en) | 2011-08-12 | 2011-08-12 | Gear box and shaft neck centering device for gear shaft of gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202188024U (en) |
-
2011
- 2011-08-12 CN CN2011202937152U patent/CN202188024U/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: 20120411 Termination date: 20200812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |