CN203214835U - Balance shaft gear set structure - Google Patents
Balance shaft gear set structure Download PDFInfo
- Publication number
- CN203214835U CN203214835U CN 201320230841 CN201320230841U CN203214835U CN 203214835 U CN203214835 U CN 203214835U CN 201320230841 CN201320230841 CN 201320230841 CN 201320230841 U CN201320230841 U CN 201320230841U CN 203214835 U CN203214835 U CN 203214835U
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- CN
- China
- Prior art keywords
- trunnion shaft
- balance shaft
- shaft driving
- flange
- axial
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Abstract
The utility model relates to a balance shaft gear set structure, which comprises a balance shaft transmission flange and a balance shaft transmission gear, wherein the balance shaft transmission flange comprises a plurality of flanges arranged on an outer ring wall and an axial projecting part on an outer side face; a plurality of bumps are arranged on the inner ring wall of the balance shaft transmission gear; the bumps are correspondingly pressed against the flanges, and are sleeved on the balance shaft transmission flange; an accommodating chamber is formed between two adjacent bumps to accommodate elastic pieces; another disk-shaped spring is sleeved an annular groove of the axial projecting part, and is pressed against the outer side face of the balance shaft transmission gear; and the buckle ring is sleeved in the annular groove, and is pressed against the disk-shaped spring to prevent the disk-shaped spring from sliding outwards in an axial direction. According to the balance shaft gear set structure, balance shaft gear set elastic pieces and the disk-shaped spring are designed to absorb collision force generated by a balance shaft gear during running, so that noise is reduced.
Description
Technical field
The utility model refers to a kind of about improving the engine balance shaft gear produces noise because of bump balance shaft gear group structure about a kind of balance shaft gear group structure especially.
Background technique
General locomotive is when driving, engine can produce the vibration problem of certain degree, so locomotive can be set up the trunnion shaft structure, as shown in Figure 9, be arranged with a trunnion shaft actuation gear 71 on the bent axle 70, drive trunnion shaft driving gear 81 rotations that have the identical number of teeth and be sheathed on trunnion shaft 80, by trunnion shaft 80 rotations after the counterweight, can offset the imbalance that the part engine running produces, and reach the purpose that engine vibration reduces.
Yet, know as popular institute that gear adds in making and must allow that the part tolerance exists man-hour, so two gears will produce a back of tooth crack when gear motion, when trunnion shaft actuation gear 71 high speed rotating on the bent axle 70 and when driving trunnion shaft driving gear 81 rotation, because back of tooth crack cause will cause having the phenomenon of noise to produce; Therefore, the model utility of " the balance gear noise of engine crankshaft is prevented locking mechanism " announced as previous Taiwan patent announcement font size I312832, mention a kind of anti-locking mechanism of trunnion shaft noise of engine crankshaft in the literary composition, balance shaft gear on the trunnion shaft is divided into a master gear and a pinion, make the other next-door neighbour of master gear pinion by a torque spring, torque spring one end is plugged on the pinion, and the other end then is plugged on the loop fasteners, and loop fasteners is pressed together on trunnion shaft in the close-fitting mode; Torque spring can make the certain off normal amount of maintenance between pinion and master gear, uses and eliminates the back of tooth crack between driving gear and trunnion shaft master gear on the bent axle, and then abate the noise.
Above-mentioned model utility is to solve the noise that balance shaft gear produces because of back of tooth crack, but because moving axially with the beat of balance shaft gear of bent axle 70 is excessive, result in idling rapidly during throttle, to produce trunnion shaft driving gear 81 in axial thruster Strike note, so that its commodity is not good, so the space of improvement is still arranged.
The model utility content
Main purpose of the present utility model is providing a kind of balance shaft gear group structure, the bump that produces during the running of energy absorption equilibrium shaftgear, and then reduce noise.
For reaching above-mentioned purpose, balance shaft gear group structure of the present utility model comprises: a trunnion shaft driving flange, a trunnion shaft driving gear, plural elastic component, at least one locating stud, a cup spring and one first clasp.Above-mentioned trunnion shaft driving flange is sheathed on the trunnion shaft, and in its external annulus be provided with the plural number flange and outer side surface be provided with the first axial bump; As for the trunnion shaft driving gear, its internal ring wall is provided with plural protuberance, the trunnion shaft driving gear with its plural protuberance respectively correspondence be resisted against plural flange and be sheathed on the trunnion shaft driving flange, and can form a putting chamber between the two adjacent protuberances; This plural putting chamber can hold plural elastic component respectively, and at least one locating stud is located in one; Can make between trunnion shaft driving flange and the trunnion shaft driving gear by this design and to link the effect with buffering.In addition, above-mentioned cup spring is sheathed on the ring groove of the first axial bump, and be resisted against the outer side surface of trunnion shaft driving gear, recycling first clasp is buckled on the ring groove of being located at the first axial bump, and be resisted against cup spring, in order to limit the axially outwards slippage of this cup spring, can make the trunnion shaft driving flange produce an elastic forepressure in axially going up.
Therefore, the utility model can improve the noise that causes because of back of tooth crack by the design of plural elastic component and at least one locating stud; In addition, see through the effect of cup spring, can the absorption equilibrium axle in axially pushing away impact force, and then the Strike note on eliminating axially.
In addition, the axial length of each protuberance of above-mentioned trunnion shaft driving gear makes cup spring be resisted against the trunnion shaft driving gear but not the trunnion shaft driving flange greater than the axial length of each flange of trunnion shaft driving flange.
In addition, the utility model also includes one first pad and is sheathed on the trunnion shaft driving flange first axial bump, and is located between cup spring and first clasp, makes more firm being fixed of dish-type spring.
Moreover, on a side of above-mentioned trunnion shaft driving flange and trunnion shaft driving gear (can be inner side surface or outer side surface), more can include a mutual corresponding positioning mark, the location when being used for assembling.
Again, trunnion shaft driving flange of the present utility model is different from aforementioned, more can have one second axial bump in its inner side surface, it more can comprise one second pad and one second clasp, its second pad and second clasp are sheathed on the second axial bump in regular turn, and second clasp is buckled on the ring groove of being located at the second axial bump, and is resisted against second pad to limit the axially inwardly slippage of second pad; Its purpose makes trunnion shaft driving flange production process more simple, therefore runs through trunnion shaft driving flange plural number putting chamber in axial passage.
More can sheathed two bearings on the trunnion shaft of the present utility model, and the trunnion shaft driving gear is disposed at the outside of two bearings, and be meshing with each other with trunnion shaft actuation gear on the bent axle, this two bearings can be used as the purposes that trunnion shaft supports.
Description of drawings
Fig. 1 is the balance shaft gear group exploded view of the utility model first preferred embodiment.
Fig. 2 is the balance shaft gear group side cutaway view of the utility model first preferred embodiment.
Fig. 3 is the local A enlarged view of the balance shaft gear group side-looking section of the utility model first preferred embodiment.
Fig. 4 is the balance shaft gear group front elevation of the utility model first preferred embodiment.
Fig. 5 is the balance shaft gear group exploded view of the utility model second preferred embodiment.
Fig. 6 is the balance shaft gear group side cutaway view of the utility model second preferred embodiment.
Fig. 7 is the local B enlarged view of the balance shaft gear group side-looking section of the utility model second preferred embodiment.
Fig. 8 is bent axle and the trunnion shaft sectional view of the utility model second preferred embodiment.
Fig. 9 is existing bent axle and trunnion shaft sectional view.
[primary clustering symbol description]
1 trunnion shaft driving flange, 11 external annulus
111 flanges, 12 outer side surfaces
121 first axial bump 122 ring grooves
123 location notch holes, 124 positioning marks
2 trunnion shafves, 21 positioning keys
3 trunnion shaft driving gears, 31 internal ring walls
311 protuberances, 312 putting chambers
32 outer side surfaces, 321 positioning marks
33 elastic components, 34 locating studs
35 cup springs, 4 first pads
5 first clasps, 6 trunnion shaft driving flanges
61 external annulus, 611 flanges
62 outer side surfaces, 621 first axial bumps
622 ring grooves, 623 location notch holes
624 positioning marks, 63 inner side surfaces
631 second axial bump 632 ring grooves
7 second pads, 8 second clasps
L1 axial length L 2 axial lengths
91,92 bearings, 10 bent axles
15 trunnion shaft actuation gears, 70 bent axles
71 trunnion shaft actuation gears, 80 trunnion shafves
81 trunnion shaft driving gears
Embodiment
Understand and realization the utility model for the ease of persons skilled in the art, now describe embodiment of the present utility model by reference to the accompanying drawings.
See also Fig. 1, Fig. 2, Fig. 3 and Fig. 4, it is respectively the local A enlarged view of exploded view, side cutaway view, side-looking section and the front elevation of first preferred embodiment of the present utility model; As showing among Fig. 1, a balance shaft gear group structure mainly includes: a trunnion shaft driving flange 1, a trunnion shaft driving gear 3, plural elastic component 33, at least one locating stud 34, a cup spring 35, one first pad 4 and one first clasp 5.
Wherein, trunnion shaft driving flange 1 is sheathed on the trunnion shaft 2, and trunnion shaft driving flange 1 has and is arranged at the plural flange 111 on the external annulus 11 and is arranged at the axial bump 121 of first on the outer side surface 12.In addition, have a positioning key 21 on the trunnion shaft 2, and trunnion shaft driving flange 1 and have and engage the location notch holes 123 of locating mutually with positioning key 21, positioning key 21 and location notch hole 123 functions are to position when trunnion shaft driving flange 1 is desired to be sheathed with trunnion shaft 2.
The internal ring wall 31 of trunnion shaft driving gear 3 is provided with plural protuberance 311, and plural protuberance 311 correspondence respectively is resisted against plural flange 111 and is sheathed on trunnion shaft driving flange 1,311 adjacent of two protuberances thereby form plural putting chamber 312.Be installed with an elastic component 33 in each putting chamber 312 respectively.In present embodiment, the quantity of putting chamber 312 is six, and elastic component 33 is that spring and quantity are six.And at least one locating stud 34 is located in the one at least of plural putting chamber 312, and in present embodiment, locating stud quantity is three.Elastic component 33 purposes are the binding tool cushioning effects that make trunnion shaft driving flange 1 and trunnion shaft driving gear 3, the noise that produces because of back of tooth crack when improving 3 rotations of trunnion shaft driving gear, and locating stud 34 then can limit the displacement amount of its buffering.
See also Fig. 2 and contrast Fig. 1 simultaneously, cup spring 35 is sheathed on the ring groove 122 of the first axial bump 121 of trunnion shaft driving flange 1, and is resisted against the outer side surface 32 of trunnion shaft driving gear 3.In addition, first pad 4 and first clasp 5 are sheathed on respectively on the first axial bump 121 of trunnion shaft driving flange 1 in regular turn, and first pad 4 is resisted against cup spring 35 with axially outwards slippage of restriction cup spring 35, first clasp 5 is then buckled on the ring groove 122 of being located at the first axial bump 121, and is resisted against first pad 4 to limit the 4 outside slippages of first pad.
Please continue to consult Fig. 3, the axial length L 1 of each protuberance 311 of trunnion shaft driving gear 3 makes cup spring 35 be resisted against trunnion shaft driving gear 3 but not trunnion shaft driving flange 1 greater than the axial length L 2 of each flange 111 of trunnion shaft driving flange 1.By the effect of dish-type spring 35, trunnion shaft driving flange 1 can produce an elastic forepressure in axially going up, in order to absorption equilibrium shaft transmission gear 3 in axial thruster impact force, thereby eliminate Strike note on axial.
As shown in Figure 4, first of the trunnion shaft driving flange 1 axial bump 121 has a location mark 124; In addition, then have on the outer side surface 32 of trunnion shaft driving gear 3 and positioning mark 124 corresponding positioning mark 321 mutually, the contraposition when can be used for assembling.
Please continue to consult Fig. 5, Fig. 6 and Fig. 7, it is the local B enlarged view of exploded view, side cutaway view and side-looking section of second preferred embodiment of the present utility model; Present embodiment and first embodiment's structure is roughly the same, its difference only is that the inner side surface 63 of the trunnion shaft driving flange 6 of present embodiment has one second axial bump 631, and have one second pad 7 and one second clasp 8, trunnion shaft driving flange 6 other structures such as external annulus 61, flange 611, outer side surface 62, the first axial bump 621, ring groove 622, location notch hole 623 and positioning mark 624 are all identical with the first preferred embodiment trunnion shaft flange, 1 structure; Present embodiment second pad 7 and second clasp 8 are sheathed on the second axial bump 631 in regular turn, and second clasp 8 buckles on the ring groove 632 of being located at the second axial bump 631, and are resisted against second pad 7 to limit the second axially inwardly slippages of pad 7; Its purpose in order to simplify trunnion shaft driving flange 6 structures, more simplifies its manufacture process punching trunnion shaft driving flange 6 plural putting chambers in axial passage.
Bent axle as shown in Figure 8 and trunnion shaft sectional view, be arranged with two bearings 91 on the trunnion shaft 2 of present embodiment, 92, and trunnion shaft driving gear 3 is disposed at two bearings 91,92 the outside, and be meshing with each other with trunnion shaft actuation gear 15 on the bent axle 10, this two bearing 91,92 can be used as the purposes that trunnion shaft 2 supports.
Though described the utility model by embodiment, but those of ordinary skills know, under the situation that does not break away from spirit of the present utility model and essence, just can make the utility model that many distortion and variation are arranged, scope of the present utility model is limited to the appended claims.
Claims (8)
1. a balance shaft gear group structure is characterized in that, comprising:
One trunnion shaft driving flange is sheathed on the trunnion shaft, comprises being located at the plural flange on the external annulus and being located at the first axial bump of 1 on the outer side surface;
One trunnion shaft driving gear, its internal ring wall is provided with plural protuberance, this trunnion shaft driving gear with its plural protuberance respectively correspondence be resisted against this plural number flange and be sheathed on this trunnion shaft driving flange, form a putting chamber between two adjacent protuberances;
The plural number elastic component, correspondence is located in this plural number putting chamber respectively;
At least one locating stud, be located in this plural number putting chamber at least one of them;
One cup spring is sheathed on the ring groove of this first axial bump, and is resisted against the outer side surface of this trunnion shaft driving gear; And
One first clasp is sheathed on this ring groove of this first axial bump, and is resisted against this cup spring to limit the axially outwards slippage of this cup spring.
2. balance shaft gear group structure as claimed in claim 1 is characterized in that the axial length of this each protuberance is greater than the axial length of this each flange.
3. balance shaft gear group structure as claimed in claim 1 is characterized in that, it also comprises one first pad, is sheathed on this first axial bump, and is located between this cup spring and this first clasp.
4. balance shaft gear group structure as claimed in claim 1, it is characterized in that, it also comprises one second pad and one second clasp, and the inner side surface of this trunnion shaft driving flange has one second axial bump, this second pad and this second clasp are sheathed on this second axial bump successively, and this second clasp is buckled on the ring groove of being located at this second axial bump, and is resisted against this second pad to limit the axially inwardly slippage of this second pad.
5. balance shaft gear group structure as claimed in claim 1 is characterized in that it also comprises a positioning key, and this trunnion shaft driving flange and have and engage the location notch hole of location mutually with this positioning key.
6. balance shaft gear group structure as claimed in claim 1 is characterized in that, this elastic component thrum spring.
7. as claim 1 a described balance shaft gear group structure, it is characterized in that having a corresponding positioning mark mutually on the side of this trunnion shaft driving flange and this trunnion shaft driving gear respectively.
8. balance shaft gear group structure as claimed in claim 1 is characterized in that this trunnion shaft also is arranged with two bearings, and this trunnion shaft driving gear is disposed at the outside of this two bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320230841 CN203214835U (en) | 2013-05-02 | 2013-05-02 | Balance shaft gear set structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320230841 CN203214835U (en) | 2013-05-02 | 2013-05-02 | Balance shaft gear set structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214835U true CN203214835U (en) | 2013-09-25 |
Family
ID=49204375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320230841 Expired - Fee Related CN203214835U (en) | 2013-05-02 | 2013-05-02 | Balance shaft gear set structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3070363A1 (en) * | 2015-03-19 | 2016-09-21 | Esbe AB | Reduction gear arrangement for a valve actuator |
| DE102019120260A1 (en) * | 2019-07-26 | 2021-01-28 | Schaeffler Technologies AG & Co. KG | Gear arrangement with an axial spring means |
-
2013
- 2013-05-02 CN CN 201320230841 patent/CN203214835U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3070363A1 (en) * | 2015-03-19 | 2016-09-21 | Esbe AB | Reduction gear arrangement for a valve actuator |
| DE102019120260A1 (en) * | 2019-07-26 | 2021-01-28 | Schaeffler Technologies AG & Co. KG | Gear arrangement with an axial spring means |
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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: 20130925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |