CN203926663U - A kind of variable gear ratio transmission device - Google Patents
A kind of variable gear ratio transmission device Download PDFInfo
- Publication number
- CN203926663U CN203926663U CN201420295645.8U CN201420295645U CN203926663U CN 203926663 U CN203926663 U CN 203926663U CN 201420295645 U CN201420295645 U CN 201420295645U CN 203926663 U CN203926663 U CN 203926663U
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- Prior art keywords
- gear
- transmission shaft
- belt pulley
- supporting base
- gear ratio
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 63
- 238000007789 sealing Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of variable gear ratio transmission device, comprise transmission shaft, one end of transmission shaft is rotatably connected to gear, a gear in gear and engine gear system is intermeshing, supporting base is installed on end cover of engine, transmission shaft passes supporting base and is automatically connected in supporting base by bearing rotary, on overhanging section of transmission shaft, be rotatably connected to big belt pulley, small belt pulley is installed on engine body, between big belt pulley and small belt pulley, be set with belt, the rotating speed of gear is to determine according to the gear being meshed with it in this gear and engine gear case, big belt pulley rotating speed and the gear rotational speed coaxial with gear are identical, if become different velocity ratios with driven Design, the rotating speed of small belt pulley is variable, finally realize variable gear ratio, and the utility model space flexible arrangement, can adjust arbitrarily the mounting point of annex, wide adaptability, highly versatile, simple in structure, easy to use.
Description
Technical field
The utility model relates to a kind of variable gear ratio transmission device.
Background technique
The motor such as water pump, generator peripheral accessory, general independent employing gear transmission or band transmission.But, when diesel engine is arranged, often there will be limited space, cause transmitting more difficult situation.If adopt separately stage-geared, there is the problem that gear cost is high, increase motor complete machine weight, also can cause due to the impact of gear larger noise; If employing belt transmission, the limited problem of many Existential Spaces.
Model utility content
The technical problems to be solved in the utility model is for above-mentioned defect, a kind of space flexible arrangement is provided, can have realized the variable gear ratio transmission device of different speed ratios.
In order to solve the problems of the technologies described above, structural feature of the present utility model is: comprise transmission shaft, one end of described transmission shaft is rotatably connected to gear, a gear in described gear and engine gear system is intermeshing, supporting base is installed on end cover of engine, described transmission shaft passes supporting base and is automatically connected in supporting base by bearing rotary, on overhanging section of transmission shaft, be rotatably connected to big belt pulley, on the annex driving, small belt pulley is installed, between described big belt pulley and small belt pulley, is set with belt.
Described gear is connected by conical surface interference with transmission shaft, and the connecting end of described gear and transmission shaft is provided with pressing plate, and compresses by bolt, prevents gear axial float.
In described supporting base, be provided with the first deep groove ball bearing and the second deep groove ball bearing that are sleeved on transmission shaft, between described the first deep groove ball bearing and the second deep groove ball bearing, be set with spacer ring.
Described transmission shaft is provided with the circlip for shaft holding out against with the second deep groove ball bearing sidepiece, and described supporting base inwall is provided with the circlip for hole holding out against with the first deep groove ball bearing sidepiece, the axial float of restriction two bearings.
In described supporting base inner chamber, transmission shaft is set with oil sealing away from the end of gear, can prevent that the oil in gear chamber from leaking outside, the Packed effect of tool.
Described big belt pulley is connected by cylindrical interference with transmission shaft.
The connecting end of described transmission shaft and big belt pulley is provided with the shaft shoulder, and an end of big belt pulley coordinates with the shaft shoulder, and the other end fixes as one by tightening nut and transmission shaft, prevents the axial play of big belt pulley.
Described supporting base partly stretches in end cover of engine, and its external diameter that stretches into part is provided with closure gasket groove, in described closure gasket groove, seal ring is installed, and can prevent from occurring oil leakage phenomenon after supporting base from installing, and plays the effect of sealing.
Compared with prior art the utlity model has following advantage: a gear engagement in gear and engine gear system, power is spread out of, gear is connected with big belt pulley by transmission shaft, between gear and big belt pulley, supporting base is installed, small belt pulley is used and is arranged on engine body exterior according to reality, between big belt pulley and small belt pulley, by belt, connect, the rotating speed of gear is to determine according to the gear being meshed with it in this gear and engine gear case, big belt pulley rotating speed and the gear rotational speed coaxial with gear are identical, also be definite value, if become different velocity ratios with driven Design, the rotating speed of small belt pulley is variable, finally realize variable gear ratio, can design two belt wheels of different drive ratios, realize variable gear ratio, and the utility model space flexible arrangement, can adjust arbitrarily the mounting point of annex, wide adaptability, highly versatile, simple in structure, easy to use.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
Fig. 2 be in Fig. 1 A-A to sectional view.
Embodiment
With reference to accompanying drawing, this variable gear ratio transmission device comprises transmission shaft 10, one end of transmission shaft 10 is rotatably connected to gear 1, gear 1 is intermeshing with a gear in engine gear system, and power is spread out of, and gear 1 is connected by conical surface interference with transmission shaft 10, prevent gear 1 axial float, gear 1 is provided with pressing plate 15 with the connecting end of transmission shaft 10, and by hexagon head bolt 14, pressing plate 15 is compressed, thereby gear 1 and transmission shaft 10 are fixed as one.Supporting base 5 is installed on end cover of engine, transmission shaft 10 passes supporting base 5 and is rotatably connected in supporting base 5, supporting base 5 parts stretch in end cover of engine, its external diameter that stretches into part is provided with closure gasket groove 16, in closure gasket groove 16, seal ring is installed, in the present embodiment, seal ring is O RunddichtringO, can prevent from occurring oil leakage phenomenon after supporting base 5 from installing, and plays the effect of sealing.In supporting base 5, be provided with between the first deep groove ball bearing 6 of being sleeved on transmission shaft 10 and the second deep groove ball bearing 12, the first deep groove ball bearings 6 and the second deep groove ball bearing 12 and be set with spacer ring 11, spacer ring 11 separates two bearings.Transmission shaft 10 is provided with the circlip for shaft 13 holding out against with the second deep groove ball bearing 12 sidepieces, supporting base 5 inwalls are provided with the circlip for hole 7 holding out against with the first deep groove ball bearing 6 sidepieces, and circlip for shaft 13 and circlip for hole 7 can limit the axial float of two bearings.In supporting base 5 inner chambers, transmission shaft 10 is set with oil sealing 8 away from the end of gear 1, oil sealing 8 can prevent that the oil in gear chamber from leaking outside, the Packed effect of tool.
With reference to accompanying drawing, transmission shaft 10 stretches out supporting base 5, on its overhanging section, be rotatably connected to big belt pulley 2, big belt pulley 2 is connected by cylindrical interference with transmission shaft 10, magnitude of interference calculates by the moment of torsion of required transmission, if driven device load is excessive, can adopt rectangular spline or involute splines to connect herein, the moment of torsion that spline joint transmits is larger, and reliability is strong.In the present embodiment, transmission shaft 10 is provided with the location shaft shoulder with the connecting end of big belt pulley 2, one end of big belt pulley 2 coordinates with the shaft shoulder, the shaft shoulder plays the effect of axially locating to big belt pulley 2, the other end of big belt pulley 2 fixes as one by tightening nut 20 and transmission shaft 10, prevents big belt pulley 2 axial floats.For avoiding heating rear belt pulley material performance, change, belt pulley heating-up temperature must not be over 250 ℃; If belt pulley temperature is controlled at 250 ℃, and magnitude of interference still can not reach calculation requirement, can be coated with happy safe 620 anaerobic adhesives in transmission shaft 10 and the installation position of big belt pulley 2, after installing, the standing glue that makes is stable, guarantees that belt pulley and axle can not rotate.
The present embodiment middle gear 1 can stretch out at the front end of cone axis cylinder shaft part with transmission shaft 10, and it is fastening with the tightening way of transmission shaft 10 that employing is similar to big belt pulley 2.
Small belt pulley 4 is installed on the annex driving in the present embodiment, between big belt pulley 2 and small belt pulley 4, be set with belt 3, can select according to actual service condition the kind of belt, V-type band or the poly Vbelts of adopting more, by regulating the diameter of two belt pulleys, adjust the velocity ratio of two belt pulleys.In the present embodiment, small belt pulley 4 is determined according to actual service condition with the Placement of diesel engine peripheral accessory.
The rotating speed of the utility model middle gear 1 is to determine according to the gear being meshed with it in this gear 1 and engine gear case, big belt pulley 2 rotating speeds coaxial with gear 1 are identical with gear 1 rotating speed, also be definite value, if become different velocity ratios with driven Design, the rotating speed of small belt pulley 4 is variable, finally realizes variable gear ratio.
The utility model is not limited to above-mentioned embodiment, and those skilled in the art, not departing under the prerequisite of spirit and scope of the present utility model, can do some changes and modification.Protection domain of the present utility model should be as the criterion with claim of the present utility model.
Claims (8)
1. a variable gear ratio transmission device, it is characterized in that: comprise transmission shaft (10), one end of described transmission shaft (10) is rotatably connected to gear (1), described gear (1) is intermeshing with a gear in engine gear system, supporting base (5) is installed on end cover of engine, described transmission shaft (10) passes supporting base (5) and is automatically connected in supporting base (5) by bearing rotary, on overhanging section of transmission shaft (10), be rotatably connected to big belt pulley (2), small belt pulley (4) is installed on the annex driving, between described big belt pulley (2) and small belt pulley (4), be set with belt (3).
2. variable gear ratio transmission device according to claim 1, it is characterized in that: described gear (1) is connected by conical surface interference with transmission shaft (10), described gear (1) is provided with pressing plate (15) with the connecting end of transmission shaft (10), and compresses by bolt.
3. variable gear ratio transmission device according to claim 2, it is characterized in that: in described supporting base (5), be provided with the first deep groove ball bearing (6) and the second deep groove ball bearing (12) that are sleeved on transmission shaft (10), between described the first deep groove ball bearing (6) and the second deep groove ball bearing (12), be set with spacer ring (11).
4. variable gear ratio transmission device according to claim 3, it is characterized in that: described transmission shaft (10) is provided with the circlip for shaft (13) holding out against with the second deep groove ball bearing (12) sidepiece, described supporting base (5) inwall is provided with the circlip for hole (7) holding out against with the first deep groove ball bearing (6) sidepiece.
5. variable gear ratio transmission device according to claim 4, is characterized in that: in described supporting base (5) inner chamber, transmission shaft (10) is set with oil sealing (8) away from the end of gear (1).
6. variable gear ratio transmission device according to claim 1, is characterized in that: described big belt pulley (2) is connected by cylindrical interference with transmission shaft (10).
7. variable gear ratio transmission device according to claim 6, it is characterized in that: described transmission shaft (10) is provided with the shaft shoulder with the connecting end of big belt pulley (2), one end of big belt pulley (2) coordinates with the shaft shoulder, and the other end fixes as one by tightening nut (20) and transmission shaft (10).
8. variable gear ratio transmission device according to claim 1, is characterized in that: described supporting base (5) part stretches in end cover of engine, and its external diameter that stretches into part is provided with closure gasket groove (16), and described closure gasket groove is provided with seal ring in (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420295645.8U CN203926663U (en) | 2014-06-05 | 2014-06-05 | A kind of variable gear ratio transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420295645.8U CN203926663U (en) | 2014-06-05 | 2014-06-05 | A kind of variable gear ratio transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926663U true CN203926663U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420295645.8U Expired - Lifetime CN203926663U (en) | 2014-06-05 | 2014-06-05 | A kind of variable gear ratio transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926663U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930160A (en) * | 2015-06-01 | 2015-09-23 | 徐存然 | Drive rotating shaft of water passing ceiling machine |
| CN106051101A (en) * | 2016-07-08 | 2016-10-26 | 洛阳天迈传动科技有限公司 | Separating type speed adjusting device |
| CN109424726A (en) * | 2017-08-30 | 2019-03-05 | 上海旭恒精工机械制造有限公司 | A kind of steering transmission support |
| CN111287844A (en) * | 2019-12-31 | 2020-06-16 | 广西玉柴机器股份有限公司 | Rear-end supporting power output device of internal combustion engine |
| CN111520450A (en) * | 2020-06-16 | 2020-08-11 | 庄淇 | Friction and engagement mixed type transmission device with self-adjusting working condition |
-
2014
- 2014-06-05 CN CN201420295645.8U patent/CN203926663U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930160A (en) * | 2015-06-01 | 2015-09-23 | 徐存然 | Drive rotating shaft of water passing ceiling machine |
| CN106051101A (en) * | 2016-07-08 | 2016-10-26 | 洛阳天迈传动科技有限公司 | Separating type speed adjusting device |
| CN109424726A (en) * | 2017-08-30 | 2019-03-05 | 上海旭恒精工机械制造有限公司 | A kind of steering transmission support |
| CN109424726B (en) * | 2017-08-30 | 2024-04-30 | 上海旭恒精工机械制造有限公司 | Steering transmission supporting device |
| CN111287844A (en) * | 2019-12-31 | 2020-06-16 | 广西玉柴机器股份有限公司 | Rear-end supporting power output device of internal combustion engine |
| CN111520450A (en) * | 2020-06-16 | 2020-08-11 | 庄淇 | Friction and engagement mixed type transmission device with self-adjusting working condition |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |