CN205118183U - Drive assembly , derailleur and vehicle - Google Patents
Drive assembly , derailleur and vehicle Download PDFInfo
- Publication number
- CN205118183U CN205118183U CN201520844687.7U CN201520844687U CN205118183U CN 205118183 U CN205118183 U CN 205118183U CN 201520844687 U CN201520844687 U CN 201520844687U CN 205118183 U CN205118183 U CN 205118183U
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- driving gear
- transmitting assemblies
- speed changer
- conical surface
- Prior art date
- 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.)
- Active
Links
Landscapes
- General Details Of Gearings (AREA)
Abstract
The utility model provides a drive assembly, derailleur and vehicle, drive assembly includes: transmission shaft and drive gear, the transmission shaft with drive gear complex part structure is the conical surface, drive gear interference fit is in the transmission shaft conical surface department, the tip of transmission shaft be equipped with be used for with drive gear locking is in fastener on the conical surface. Drive assembly, the assembly precision of drive gear and transmission shaft is high, little, the easy detection of transmission error, and is quieter in the course of the work.
Description
Technical field
The utility model relates to technical field of vehicle, particularly a kind of transmitting assemblies, speed changer and vehicle.
Background technique
Traditional external gear pump input shaft and the connection of actuation gear adopt spline connection structure mostly.Spline structure is easy to assembling, but its accuracy of manufacturing requires high and not easily detects, and transmission error is large.Actuation gear and mechanical pump input shaft adopt gap spline fitted mode, axial position uses snap ring to carry out spacing, this structure causes actuation gear all to there is certain gap with input shaft in the radial and axial directions, the stable working of oil pump and noise are all had a certain impact, and due to gear inner spline diameter less, not easily process and detect, quality of product is difficult to control.
Model utility content
In view of this, the utility model is intended to propose a kind of transmitting assemblies, with improve driving gear and transmission shaft assembly precision, reduce transmission error and work time noise.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of transmitting assemblies, comprise: transmission shaft and driving gear, the part that described transmission shaft coordinates with described driving gear is configured to the conical surface, described driving gear is interference fitted in the described conical surface place of described transmission shaft, and the end of described transmission shaft is provided with the fastening piece for being locked at by described driving gear on the described conical surface.
Further, described transmission shaft is connected with described driving gear key.
Further, described key is flat key.
Further, described fastening piece is nut, and the end of described transmission shaft is provided with the screw thread with described nut screw connection.
Further, described fastening piece is snap ring, and the end of described transmission shaft is provided with the draw-in groove coordinated with described snap ring.
Further, described transmission shaft is the mechanical pump input shaft of speed changer, and described driving gear is the driven by mechanical pump gear of speed changer.
Further, the described conical surface has first end and the second end, the distance of described first end and described nut is less than the distance of described second end and described nut, and the radial dimension of described first end is less than the radial dimension of described second segment, described nut be resisted against described driving gear towards on the side of described nut.
Relative to prior art, transmitting assemblies described in the utility model has following advantage:
Transmitting assemblies described in the utility model, adopts the mode of interference fit to carry out transmitting torque between transmission shaft and driving gear, the assembly precision of driving gear and transmission shaft can be improved and transmission error little, be easy to detect, quieter in the course of the work.
In addition, relative to the transmission shaft adopting spline to carry out coordinating and driving gear, the requirement of transmitting assemblies to accuracy of manufacturing adopting interference fit to be fixed is low, and then reduces the cost of transmitting assemblies at least to a certain extent.
Another object of the present utility model is to propose a kind of speed changer, and this speed changer comprises above-mentioned transmitting assemblies, noise during to reduce the cost of speed changer and to work.
Relative to prior art, speed changer described in the utility model has following advantage:
Speed changer described in the utility model is more steady in the running; Neutral position switch and neutral positioning seat integrated with one, reduce the risk of speed changer development cost and speed changer leakage of oil; Can effectively reduce because actuation gear engages the oil pump noise steadily do not caused.
Another object of the present utility model is to propose a kind of vehicle, and this vehicle comprises above-mentioned speed changer, and stationarity during to improve work also reduces the cost of vehicle.
Relative to prior art, vehicle described in the utility model has following advantage:
Vehicle of the present utility model is more steady in operation engineering, noise is lower, and reduces the cost of vehicle at least to a certain extent.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram in a direction of the speed changer described in the utility model embodiment;
Fig. 2 is the schematic diagram in another direction of the speed changer described in the utility model embodiment.
Description of reference numerals:
110-transmission shaft, 120-driving gear, the 111-conical surface, 130-fastening piece, 140-key,
200-speed changer.
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
1 to Fig. 2 in conjunction with the embodiments describe the transmitting assemblies of the utility model embodiment in detail below with reference to the accompanying drawings, the transmitting assemblies of the utility model embodiment can be used on speed changer 200 but to be not limited thereto.
Can comprise transmission shaft 110 and driving gear 120 according to the transmitting assemblies of the utility model embodiment, the part that transmission shaft 110 coordinates with driving gear 120 is configured to the conical surface 111, and driving gear 120 is interference fitted in the conical surface 111 place of transmission shaft 110.
Be understandable that, because transmission shaft 110 and driving gear 120 are interference fit, therefore, driving gear 120 can not be moved in axis or radial direction, and the moment of torsion of transmission shaft 110 passes to driving gear 120 by the frictional force between the conical surface 111 and driving gear 120.
Owing to adopting the mode transmitting torque of interference fit between transmission shaft 110 and driving gear 120, therefore transmission shaft 110 is with driving gear 120 assembly precision is high, transmission error is little, and be easy to detect, transmitting assemblies is quieter in the course of the work.
The end of transmission shaft 110 is provided with the fastening piece 130 for being locked at by driving gear 120 on the conical surface 111, and the end due to transmission shaft 110 is provided with fastening piece 130, and therefore driving gear 120 is folded between the conical surface of transmission shaft 110 and fastening piece 130.
According to the transmitting assemblies of the utility model embodiment, the mode of interference fit is adopted to carry out transmitting torque between transmission shaft 110 and driving gear 120, the assembly precision of driving gear 120 and transmission shaft 110 can be improved and transmission error little, be easy to detect, quieter in the course of the work.
In addition, relative to the transmission shaft adopting spline to carry out coordinating and driving gear, the requirement of transmitting assemblies to accuracy of manufacturing adopting interference fit to be fixed is low, and then reduces the cost of transmitting assemblies at least to a certain extent.
In embodiments more of the present utility model, as shown in Figure 1, transmission shaft 110 is connected with driving gear 120 key.That is, between transmission shaft 110 and driving gear 120, moment of torsion not only can be transmitted by the interference fit at the conical surface 111 place, can also be transmitted by key 140.Alternatively, above-mentioned key 140 can be flat key.
Certainly, key 140 is set between transmission shaft 110 and driving gear 120 and is not only in order to transmitting portions moment of torsion, main still in order to facilitate it to install when being combined together with driving gear 120 by transmission shaft 110.
In embodiments more of the present utility model, as depicted in figs. 1 and 2, fastening piece 130 can be nut, and the end of transmission shaft 110 can be provided with the screw thread with nut screw connection.In installation process, can nut be moved to the direction near driving gear 120 tightening nut, and then can driving gear 120 is squeezed on the conical surface 111, to realize the interference fit between transmission shaft 110 and driving gear 120.
Further, the conical surface 111 has first end and the second end, and the distance of first end and nut is less than the distance of the second end and nut, and the radial gear of first end is less than the radial gear of the second end, nut be resisted against driving gear 120 towards on the side of nut.
Alternatively, fastening piece 130 can be snap ring, and the end of transmission shaft 110 can be provided with the draw-in groove coordinated with snap ring.First setting tool can be adopted in installation process to be pressed on the conical surface 111 by driving gear 120, then snap ring to be joined and be arranged in draw-in groove, realize the interference fit between driving gear 120 and transmission shaft 110 thus.
The transmission shaft 110 of the lower the utility model embodiment of simple description and the installation process of driving gear 120 below.
Because nut is in the process screwed, transmission shaft 110 inevitably can have the trend of rotation, therefore fixed conveyor gear 120 is first needed, driving gear 120 can not be rotated, and be arranged between transmission shaft 110 and driving gear 120 due to key 140, therefore transmission shaft 110 also just can not rotate, and then can be successfully arranged on transmission shaft 110 by nut, and driving gear 120 is locked on the conical surface 111 of transmission shaft 110.
In installation process, can by screwing force apart from judging that whether driving gear 120 is to reach spacing, the side of fastening nut key 140 in the process screwed in can contact with gear key 140 groove side all the time, and therefore key 140 can play certain transmitting torque effect.
Transmission shaft 110 can be the mechanical pump input shaft of speed changer 200, and driving gear 120 can be the driven by mechanical pump gear of speed changer 200.
The speed changer 200 of the utility model embodiment is simply described below.
Comprise the transmitting assemblies of above-described embodiment according to the speed changer 200 of the utility model embodiment, because the speed changer 200 of the utility model embodiment is provided with above-mentioned transmitting assemblies, therefore this speed changer 200 is more steady in the running; Neutral position switch and neutral positioning seat integrated with one, reduce the risk of speed changer 200 development cost and speed changer 200 leakage of oil; Can effectively reduce because actuation gear engages the oil pump noise steadily do not caused.
The vehicle of the utility model embodiment is simply described below.
The speed changer 200 of above-described embodiment is comprised according to the vehicle of the utility model embodiment, vehicle set due to the utility model embodiment has above-mentioned speed changer 200, therefore this vehicle is more steady in operation engineering, noise is lower, and reduces the cost of vehicle at least to a certain extent.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a transmitting assemblies, it is characterized in that, comprise: transmission shaft and driving gear, the part that described transmission shaft coordinates with described driving gear is configured to the conical surface, described driving gear is interference fitted in the described conical surface place of described transmission shaft, and the end of described transmission shaft is provided with the fastening piece for being locked at by described driving gear on the described conical surface.
2. transmitting assemblies according to claim 1, is characterized in that, described transmission shaft is connected with described driving gear key.
3. transmitting assemblies according to claim 2, is characterized in that, described key is flat key.
4. the transmitting assemblies according to any one of claim 1-3, is characterized in that, described fastening piece is nut, and the end of described transmission shaft is provided with the screw thread with described nut screw connection.
5. the transmitting assemblies according to any one of claim 1-3, is characterized in that, described fastening piece is snap ring, and the end of described transmission shaft is provided with the draw-in groove coordinated with described snap ring.
6. the transmitting assemblies according to any one of claim 1-3, is characterized in that, described transmission shaft is the mechanical pump input shaft of speed changer, and described driving gear is the driven by mechanical pump gear of speed changer.
7. transmitting assemblies according to claim 4, it is characterized in that, the described conical surface has first end and the second end, the distance of described first end and described nut is less than the distance of described second end and described nut, and the radial dimension of described first end is less than the radial dimension of described second segment, described nut be resisted against described driving gear towards on the side of described nut.
8. a speed changer, is characterized in that, comprises the transmitting assemblies according to any one of claim 1-7.
9. a vehicle, is characterized in that, comprising: the speed changer described in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520844687.7U CN205118183U (en) | 2015-10-28 | 2015-10-28 | Drive assembly , derailleur and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520844687.7U CN205118183U (en) | 2015-10-28 | 2015-10-28 | Drive assembly , derailleur and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205118183U true CN205118183U (en) | 2016-03-30 |
Family
ID=55573798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520844687.7U Active CN205118183U (en) | 2015-10-28 | 2015-10-28 | Drive assembly , derailleur and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205118183U (en) |
-
2015
- 2015-10-28 CN CN201520844687.7U patent/CN205118183U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205118183U (en) | Drive assembly , derailleur and vehicle | |
| CN204459069U (en) | Worm screw, worm gear worm backlash regulating mechanism, commutator and automobile | |
| CN103511504A (en) | Unidirectional rotation joint fork | |
| CN202431699U (en) | Wheel bolt with double locking function | |
| CN204572956U (en) | A kind of input gear case and there is its bicycle shift speed change system | |
| US20180172134A1 (en) | Worm reducer and electric assist device | |
| CN202756419U (en) | Rotary shaft | |
| CN205172643U (en) | Section -variable nozzle ring for turbocharger | |
| CN104455286A (en) | Spiral lifting mechanism | |
| CN202690718U (en) | Motor shaft | |
| WO2017033571A1 (en) | Power transmission device | |
| CN204253592U (en) | Air-conditioning mute precision bearing | |
| CN108297013B (en) | Press mounting tool for riveting fixing sleeve | |
| CN203655930U (en) | Quick-change hexagonal universal joint | |
| CN207712807U (en) | A kind of chain transmission line auxiliary clamp mechanism | |
| CN208651476U (en) | A kind of multimode clutch | |
| CN205172646U (en) | But turbo charger is with variable cross section nozzle cascade subassembly | |
| CN204658294U (en) | A kind of crank screw cutter | |
| CN205780238U (en) | A kind of anti abrasive double crosslinking gear shaft | |
| CN205780226U (en) | The electric planer rotating shaft that a kind of transmission performance is high | |
| CN207621199U (en) | A kind of constant velocity driving shaft pad | |
| CN205206885U (en) | But turbo charger is with variable cross section nozzle cascade subassembly | |
| CN108637111B (en) | Press mounting tool for riveting fixed ring | |
| CN203110829U (en) | Drive axle half shaft in novel structure | |
| CN220180907U (en) | Input shaft connecting structure of automobile steering gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |