CN209212891U - A kind of axial positioning structure - Google Patents
A kind of axial positioning structure Download PDFInfo
- Publication number
- CN209212891U CN209212891U CN201822038262.3U CN201822038262U CN209212891U CN 209212891 U CN209212891 U CN 209212891U CN 201822038262 U CN201822038262 U CN 201822038262U CN 209212891 U CN209212891 U CN 209212891U
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- Prior art keywords
- output shaft
- hole
- left part
- transmission gear
- annular groove
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Abstract
The utility model discloses a kind of axial positioning structures, including gear box casing, installation groove is formed in the middle part of the right wall of the left side wall of the gear box casing, there is bearing mounting groove on the inner sidewall of installation groove, the outer ring of internal bearings is fixed on the inner sidewall of bearing mounting groove, the left part sleeve of transmission gear is in installation groove, the lateral wall of the left part of transmission gear is fixed on the inner ring of internal bearings, internal spline through-hole is formed in the middle part of transmission gear, output shaft is in gear box casing, the left part lateral wall of output shaft forms external splines, the left part sleeve of output shaft is in internal spline through-hole, external splines is matched with the spline of internal spline through-hole, it is characterized by: forming annular groove at the left part of the external splines, there is positioning annular groove to communicate and right for annular groove and the left part lateral wall of output shaft It answers.It may ensure that transmission gear not will do it axial float, guarantee the normal operation of transmission gear.
Description
Technical field:
The utility model relates to transmission technology field, more specifically to a kind of axial positioning structure.
Background technique:
In speed changer on existing industrial machinery speed changer such as fork truck, the biography of the output axis connection in speed changer
Moving gear is generally straight-tooth, however, being driven using straight-tooth, noise is larger, since it is desired that optimization noise, straight-tooth is changed to tiltedly
Tooth；And after transmission gear is changed to helical teeth, axial force can be generated in transmission, the inner end of output shaft is directly by spline sleeve
In the internal splined hole of transmission gear, transmission gear can thus be made to carry out axial float along output shaft, it is serious to make
Reduce at interference, gear Bite size, seriously affects the service life.
Utility model content:
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of axial positioning structure, it may ensure that
Output shaft is connected firmly with transmission gear, and transmission gear will not be made to carry out axial float, guarantee the normal operation of transmission gear.
The scheme that the utility model solves the technical problem is:
A kind of axial positioning structure, including gear box casing, the middle part of the right wall of the left side wall of the gear box casing
Installation groove is formed, there is bearing mounting groove on the inner sidewall of installation groove, the outer ring of internal bearings is fixed on bearing installation
On the inner sidewall of slot, in installation groove, the lateral wall of the left part of transmission gear is fixed on the left part sleeve of transmission gear
Internal spline through-hole is formed on the inner ring of internal bearings, in the middle part of transmission gear, output shaft is in gear box casing, output shaft
Left part lateral wall form external splines, the left part sleeve of output shaft in internal spline through-hole, external splines and internal spline through-hole
Spline matches, it is characterised in that: annular groove, a left side for annular groove and output shaft are formed at the left part of the external splines
There is portion's lateral wall positioning annular groove to communicate and correspond to, the inner ring formed on the inner sidewall of annular groove and internal spline through-hole
Shape card slot communicates, and snap ring sleeve is in annular groove, positioning annular groove and annular card slot.
The snap ring is C-shaped snap ring.
The left end of the external splines and right end form oblique guide end.
The right end of the splined projections of the internal spline through-hole forms oblique guide end.
Splined projections at the right side wall of the annular card slot of the internal spline through-hole have interior oblique guide end.
The right part of the output shaft by bearing hinge connection on the right end connecting plate of gear box casing, the right end of output shaft at
Type has helical teeth portion.
The protrusion effect of the utility model is:
Compared with prior art, it uses snap ring sleeve in annular groove, positioning annular groove and annular card slot, from
And can guarantee that output shaft is fixed with transmission gear junction position, so that transmission gear not will do it axial float, guarantee to pass
The normal operation of moving gear.
Detailed description of the invention:
Fig. 1 is existing attachment structure schematic diagram；
The partial structural diagram of Fig. 2 the utility model；
Fig. 3 is the partial structural diagram of the output shaft of the utility model；
Fig. 4 is the partial structural diagram of the gear box casing of the utility model；
Fig. 5 is the partial enlarged view of Fig. 2.
Specific embodiment:
Embodiment is shown in as shown in Figures 2 to 5, a kind of axial positioning structure, including gear box casing 10, the gearbox
Installation groove 11 is formed in the middle part of the right wall of the left side wall of shell 10, and there is bearing installation on the inner sidewall of installation groove 11
Slot 12, the outer ring of internal bearings 13 are fixed on the inner sidewall of bearing mounting groove 12, and the left part sleeve of transmission gear 14 is being pacified
It fills in groove 11, the lateral wall of the left part of transmission gear 14 is fixed on the inner ring of internal bearings 13, in transmission gear 14
Portion forms internal spline through-hole 141, and output shaft 15 is in gear box casing 10, and the left part lateral wall of output shaft 15 forms outer
Spline 151, the left part sleeve of output shaft 15 is in internal spline through-hole 141, the spline of external splines 151 and internal spline through-hole 141
It matches, annular groove 152, the left part outside of annular groove 152 and output shaft 15 is formed at the left part of the external splines 151
There is wall positioning annular groove 153 to communicate and correspond to, and form on the inner sidewall of annular groove 152 and internal spline through-hole 141
Annular card slot 142 communicates, and 16 sleeve of snap ring is in annular groove 152, positioning annular groove 153 and annular card slot 142.
Further, the snap ring 16 is C-shaped snap ring.
Further, the left end of the external splines 151 and right end form oblique guide end.
Further, the right end of the splined projections of the internal spline through-hole 141 forms oblique guide end.
Further, the splined projections at the right side wall of the annular card slot 142 of the internal spline through-hole 141 have interior
Oblique guide end 143.
Further, the right part of the output shaft 15 passes through bearing hinge connection in the right end connecting plate of gear box casing 10
On, the right end of output shaft 15 forms helical teeth portion.
Working principle:, then, will by 16 sleeve of snap ring in annular groove 152 and positioning annular groove 153 when installation
The left end of output shaft 15 is protruded into internal spline through-hole 141, as the left end of output shaft 15 is gradually protruded into, so that external splines 151
Splined projections insertion internal spline through-hole 141 spline in, and due to the right end of the splined projections of internal spline through-hole 141 form
Have oblique guide end, in this way, snap ring 16 is extruded compression when gradually protruding into so that its to be completely in positioning annular recessed
In slot 153, i.e. the compressed maximum gauge of the snap ring 16 bottom diameter that is less than external splines 151, so that in snap ring 16 will not stop
Spline through-hole 141 and external splines 151 it is mating, then gradually pushed to the left in external splines 151, when 152 He of annular groove
When annular card slot 142 communicates, snap ring 16 is by elastic recovery, so as to realize in its partial insertion annular card slot 142
Installation positioning, which is realized, to be fixed, in this way, being achieved that being located by connecting for output shaft 15 and transmission gear 14, ensure that transmission gear 14
Play will not be generated in rotation.
And when needing repairing, when disassembly, it is only necessary to it is protruded into bottle opener or the body of rod in the spline of internal spline through-hole 141, it will
Snap ring 16 compresses, so that it is not inserted in annular card slot 142, then, can extract outward output shaft 15.
Finally, embodiment of above is merely to illustrate the utility model, and it is not limitation of the utility model, related skill
The those of ordinary skill in art field can also make various changes in the case where not departing from the spirit and scope of the utility model
Change and modification, therefore all equivalent technical solutions also belong to the scope of the utility model, the patent protection model of the utility model
Enclosing should be defined by the claims.
Claims (6)
1. a kind of axial positioning structure, including gear box casing (10), the right wall of the left side wall of the gear box casing (10)
Middle part form installation groove (11), on the inner sidewall of installation groove (11) have bearing mounting groove (12), internal bearings
(13) outer ring is fixed on the inner sidewall of bearing mounting groove (12), and the left part sleeve of transmission gear (14) is in installation groove
(11) in, the lateral wall of the left part of transmission gear (14) is fixed on the inner ring of internal bearings (13), transmission gear (14)
Middle part forms internal spline through-hole (141), and output shaft (15) is in gear box casing (10), on the outside of the left part of output shaft (15)
Wall forms external splines (151), and the left part sleeve of output shaft (15) is in internal spline through-hole (141), external splines (151) and interior flower
The spline of key through-hole (141) matches, it is characterised in that: forms annular groove at the left part of the external splines (151)
(152), there is positioning annular groove (153) to communicate and corresponding, ring for annular groove (152) and the left part lateral wall of output shaft (15)
The annular card slot (142) formed on connected in star (152) and the inner sidewall of internal spline through-hole (141) communicates, and snap ring (16) is inserted
It covers in annular groove (152), positioning annular groove (153) and annular card slot (142).
2. a kind of axial positioning structure according to claim 1, it is characterised in that: the snap ring (16) is C-shaped elastic card
Ring.
3. a kind of axial positioning structure according to claim 1, it is characterised in that: the left end of the external splines (151) and
Right end forms oblique guide end.
4. a kind of axial positioning structure according to claim 1, it is characterised in that: the flower of the internal spline through-hole (141)
The right end of key protrusion forms oblique guide end.
5. a kind of axial positioning structure according to claim 1, it is characterised in that: the internal spline through-hole (141) it is interior
Splined projections at the right side wall of annular slot (142) have interior oblique guide end (143).
6. a kind of axial positioning structure according to claim 1, it is characterised in that: the right part of the output shaft (15) passes through
For bearing hinge connection on the right end connecting plate of gear box casing (10), the right end of output shaft (15) forms helical teeth portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822038262.3U CN209212891U (en) | 2018-12-06 | 2018-12-06 | A kind of axial positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822038262.3U CN209212891U (en) | 2018-12-06 | 2018-12-06 | A kind of axial positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209212891U true CN209212891U (en) | 2019-08-06 |
Family
ID=67463316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822038262.3U Active CN209212891U (en) | 2018-12-06 | 2018-12-06 | A kind of axial positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209212891U (en) |
-
2018
- 2018-12-06 CN CN201822038262.3U patent/CN209212891U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |