CN2544139Y - Stepless speed variator for car - Google Patents
Stepless speed variator for car Download PDFInfo
- Publication number
- CN2544139Y CN2544139Y CN 02234879 CN02234879U CN2544139Y CN 2544139 Y CN2544139 Y CN 2544139Y CN 02234879 CN02234879 CN 02234879 CN 02234879 U CN02234879 U CN 02234879U CN 2544139 Y CN2544139 Y CN 2544139Y
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- variable
- control valve
- speed
- clutch
- gear
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Abstract
The utility model relates to a variable-speed control mechanism of a vehicle gearing. An engine is connected with an input axis of a clutch. An output axis is connected with a two-stage planetary reducer. A belt gear is arranged between the variable-speed disk of the reducers with different stages and the output axis of the clutch. The clutch is provided with a hydraulic pump. The outlet of the pump is connected with a manual control valve with three gear-shifting. The outlet of the valve is respectively connected with the throttle of the flow control valve for backing and going forward. The relative outlet is respectively connected with the corresponding control port of the clutch. The flow control valve is connected with a guyed mechanism acting synchronously with the automobile throttle pedal. The two variable-speed disks are variable diameter disks driven by hydraulic pressure. The utility model makes full use of the character of the planetary reducer with compactness, high efficiency driving, flexible and convenient variable control to realize the big torque driving of high power engines. The variable control makes full use of the dependable hydraulic control mechanism to realize the variable-speed with no stage. And the variable speed process is smooth and easy to operate. The utility model has the prominent advantages of variable-speed with no stage and strong ability of loading.
Description
Technical field
The utility model relates to the speed Control mechanism of vehicle transmission gear.
Background technique
Existing automobile steel band stepless speed variator is a kind of similar scooter v-belt stepless speed variator of the later stage seventies in last century developing, formally coming into operation in 82 years.Because this stepless speed variator is to rely on steel band and the tapered dish that matches with steel band transmits the power of motor, and is therefore very high to the requirement of its material.In order to cool off and to lubricate, steel band in the actual device and tapered dish must be designed to the immersion oil mode.However, pulling force and wear-resisting property that the steel band stepless speed variator can bear are limited, can only use at the less miniature proud car of load, and can not be used for the bigger automobile of load.
Summary of the invention
The utility model is in order to solve the less technical problem of load-carrying ability that existing automobile steel band stepless speed variator exists, and proposes a kind of auto continuously variable transmission.
The utility model is taked following technological scheme for the above-mentioned technical problem that solves existing automobile steel band stepless speed variator existence: engine spindle and multi-disc wet clutch input shaft join, its output shaft is connected with compound epicyclic reduction gear, be provided with belt gear between the speed change dish of planetary reducers at different levels and the Clutch input shaft: multi-disc wet clutch is provided with the oil hydraulic pump that is transmitted in engine spindle, pump discharge is connected to and advances, fall back and close three gear hand control valves, advance, the valve outlet port of gear of falling back joins with the reversing oil circuit of flow control valve and the valve inlet of preceding in-line respectively, its corresponding valve outlet port mouthful joins with the corresponding control of multi-disc wet clutch respectively, and the controlling rod of flow control valve is connected to the thread drawing mechanism with the accelerator pedal of automobile synchronization motion; Two speed change dishes of planetary reducers at different levels are hydraulic driving reducing dishes, and its oil circuit is communicated in oil hydraulic pump, are connected to the reducing control valve with the accelerator pedal of automobile synchronization motion in the oil circuit.
The utility model can also be taked following technical measures:
The belt gear that is provided with between the speed change dish of described planetary reducers at different levels and the clutch output shaft, its belt are synchronous bands.
The output shaft of described compound epicyclic reduction gear is connected to the control pump by its revolution control, and pump discharge is connected to pressure control valve inlet flow control valve, identical with the thread drawing mechanism effect and joins.
The beneficial effects of the utility model and advantage are: make full use of planetary reducer mechanism compactness, transmission efficiency height and the flexible characteristics of speed Control, realize the large torque transmission of high power engine.Speed Control then makes full use of reliable hydraulic control and realizes stepless change, and the speed change quiet run is simple.The utlity model has the stronger outstanding advantage of stepless change and load-carrying ability.
Appended drawings 1 the utility model drive part schematic diagram.Accompanying drawing 2 drive part structural representations.Accompanying drawing 3 Fig. 2 A are to schematic representation.Accompanying drawing 4 the utility model clutches and control section structural representation.
Drawing reference numeral: 1 Clutch input shaft, 2 casings, 3 belts, 4 speed change dishes, 5 tumbler gears, 6 multi-disc wet clutch, 7 compound epicyclic reduction gears, 8 speed regulating mechanisms, 9 ptos, 10 oil hydraulic pumps, 11 hand control valves, 12 valve rods, 13 flow control valves, 14 cams, 15 backguys, 16 gas pedals, 17 pressure controlled valves, 18 control pumps, 19 reducing control valves.
Embodiment
Further specify the utility model below in conjunction with drawings and Examples.As shown in Figure 1, active force M is that motor output is passed through to arrive A behind the clutch, and B, C two speed change dishes are in order to regulate the velocity ratio of compound epicyclic reduction gear, and D, E, F, G constitute the one-level planetary reducer, and H, I, J, K constitute second planetary reducer, and N is power output.
Shown in Fig. 2,3 is drive part of the present utility model, be installed in the multi-disc wet clutch 6 in the casing 2, its Clutch input shaft 1 is connected with engine spindle, and clutch output shaft is connected with compound epicyclic reduction gear 7, and pto 9 is arranged at casing 2 one ends.
The speed regulating mechanism 8 of planetary reducers at different levels is respectively established a speed change dish 4, and belt gear and the Clutch input shaft be made up of belt 3 and tumbler gear 5 be in transmission connection, and belt is a tooth form synchronous belt.
Fig. 4 clutch and control section structural representation, multi-disc wet clutch 6 is provided with the oil hydraulic pump 10 that is transmitted in engine spindle, pump discharge is connected to by what valve rod 12 was handled and advances, falls back and close three gear hand control valves 11, the valve outlet port of gear of advancing, fall back joins with the reversing oil circuit of flow control valve 13 and the valve inlet of preceding in-line respectively, its corresponding valve outlet port mouthful joins with the corresponding control of multi-disc wet clutch respectively, and the controlling rod of flow control valve 13 is connected to the thread drawing mechanism that is made of cam 14 and backguy 15 with accelerator pedal of automobile 16 synchronization motions; Two speed change dishes 4 of planetary reducers at different levels are hydraulically powered reducing dishes, and its oil circuit is communicated in oil hydraulic pump 10, are connected to the reducing control valve 19 with the accelerator pedal of automobile synchronization motion in the oil circuit.The output shaft of compound epicyclic reduction gear is connected to the control pump 18 by its revolution control, and pump discharge is connected to pressure controlled valve 17 inlets flow control valve, identical with the thread drawing mechanism effect and joins, and this valve output is connected to 1 mouthful of flow control valve 13.
Working procedure of the present utility model is: after the engine rotation, have only hand control valve 11 to be in to advance or flow control valve 13 is corresponding when falling back gear goes out eloquence and have oil pressure to send to finish to multi-disc wet clutch 6 and advance or fall back clutch action, the thread drawing mechanism of flow control valve 13 and gas pedal synchronization motion, it is soft that clutch action is changed.Simultaneously reducing control valve 20 also with the gas pedal synchronization motion, make two speed change dishes, 4 corresponding reducings finish the stepless change action of planetary reducer.When the output shaft revolution of planetary reducer was a certain amount of, the oil pressure of control pump 19 was opened pressure controlled valve 17, made flow control valve 13 be in automatic enable possition.
Claims (3)
1, auto continuously variable transmission, it is characterized in that: engine spindle and multi-disc wet clutch input shaft join, its output shaft is connected with compound epicyclic reduction gear, be provided with belt gear between the speed change dish of planetary reducers at different levels and the Clutch input shaft: multi-disc wet clutch is provided with the oil hydraulic pump that is transmitted in engine spindle, pump discharge is connected to and advances, fall back and close three gear hand control valves, advance, the valve outlet port of gear of falling back joins with the reversing oil circuit of flow control valve and the valve inlet of preceding in-line respectively, its corresponding valve outlet port mouthful joins with the corresponding control of multi-disc wet clutch respectively, and the controlling rod of flow control valve is connected to the thread drawing mechanism with the accelerator pedal of automobile synchronization motion; Two speed change dishes of planetary reducers at different levels are hydraulic driving reducing dishes, and its oil circuit is communicated in oil hydraulic pump, are connected to the reducing control valve with the accelerator pedal of automobile synchronization motion in the oil circuit.
2, auto continuously variable transmission according to claim 1 is characterized in that: the belt gear that is provided with between the speed change dish of described planetary reducers at different levels and the Clutch input shaft, its belt are synchronous bands.
3, auto continuously variable transmission according to claim 1, it is characterized in that: the pto of described compound epicyclic reduction gear is connected to the control pump by its revolution control, and pump discharge is connected to pressure control valve inlet flow control valve, identical with the thread drawing mechanism effect and joins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02234879 CN2544139Y (en) | 2002-05-22 | 2002-05-22 | Stepless speed variator for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02234879 CN2544139Y (en) | 2002-05-22 | 2002-05-22 | Stepless speed variator for car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2544139Y true CN2544139Y (en) | 2003-04-09 |
Family
ID=33709545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02234879 Expired - Fee Related CN2544139Y (en) | 2002-05-22 | 2002-05-22 | Stepless speed variator for car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2544139Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978951B (en) * | 2005-12-06 | 2012-10-03 | 现代自动车株式会社 | Manual valve of a hydraulic pressure control system for an automatic transmission |
-
2002
- 2002-05-22 CN CN 02234879 patent/CN2544139Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978951B (en) * | 2005-12-06 | 2012-10-03 | 现代自动车株式会社 | Manual valve of a hydraulic pressure control system for an automatic transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |