CN207393888U - A kind of single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox - Google Patents

Abstract

Current hydraulic mechanical stepless gearbox is mostly using the form of multiple rows of planetary gear series connection, it is but complicated there are drive mechanism, the utility model provides a kind of simple in structure, process and assemble facility, Multi sectional, efficient single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox.It is characterized in that：Three planetary gears 6 are made of three gears, and common planet carrier bar 8, with there are three three planetary gears, 6 intermeshing sun gears, then by being engaged with ring gear 7, you can form single compound planetary gear train；Three sun gear hollow shafts are mutually nested, and the power that input shaft 1 transmits is transferred to 16 fixed displacement motor 15 of variable pump through hub 13 outside engaging tooth wheel set B14 to clutch through engaging tooth wheel set C17, and hydraulic power is transferred to three sun gears by the switching of clutch respectively；Machine power is transferred to planet hack lever 8, is exported after confluence by ring gear 7, and the transmission configuration is simple, and processing and manufacturing assembling is easy, its main feature is that transmission efficiency, to transfer power big etc..

Description

A kind of single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox

Technical field

The utility model is related to a kind of buncher, more particularly to single dual planetary gear formula Multi sectional hydraulic press Tool buncher, belongs to mechanical transmission fields.

Background technology

Variable speed is considered as optimal system of vehicle transmission form, can be according to the stepless variation of vehicle operation load condition Gearratio realizes better governor control characteristics.Hydraulic mechanical stepless gearbox at present, due to make use of machinery driving efficiency high, liquid The advantages that pressure transmission stepless speed regulation, therefore better speed adjustable range can be obtained.At present, hydraulic mechanical stepless gearbox is in order to meet The output of the lower speed of different work load of Multi sectional, generally mostly results in transmission knot using multiple rows of planetary gear cascade Structure is complicated, processing and manufacturing assembling is difficult, such as：Patent 2011203880950, there are speed changer volume is big, double planet row installation The problems such as location difficulty.

The purpose of this utility model is to provide a kind of with simple in structure, assembling facility, the wide scope of Multi sectional, high efficiency A kind of Hydrostatic-mechanical Transmission feature buncher.

Utility model content

As previously mentioned, in order to solve the problems, such as present in existing technology, the utility model provides a kind of single compound Planetary gear type Multi sectional hydraulic mechanical stepless gearbox, including hub outside main clutch 2, variable pump 16, motor 15, clutch 13rd, low-speed sun pinion 10, middling speed sun gear 11, high-speed sun pinion 12, three planetary gears 6, planet hack lever 8, ring gear 7, low Speed clutch 3, middle speed clutch 4, high-speed clutch 5；It is characterized in that：Three planetary gears 6 are made of three gears, and altogether With planet hack lever 8, which is connected by main clutch 2 with input shaft 1, intermeshing too with three planetary gears 6 Sun wheel is low-speed sun pinion 10, middling speed sun gear 11, high-speed sun pinion 12 respectively, and three planetary gears 6 pass through engaging tooth wheel set A9 is engaged with ring gear 7, you can forms single compound planetary gear train；The internal friction disc and low-speed sun pinion of low-speed clutch 3 10 by hollow axis connection, and the hollow shaft housing is on planet hack lever 8, internal friction disc and the middling speed sun gear 11 of middle speed clutch 4 Again by a hollow axis connection, the hollow shaft housing is outside the hollow shaft being connected with low-speed sun pinion 10, high-speed clutch 5 Internal friction disc and high-speed sun pinion 12 again by a hollow axis connection, which is connected in middling speed sun gear 11 Hollow shaft outside.

For the single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox it is characterized in that：Input shaft 1 It is connected by engaging tooth wheel set C17 with variable pump 16, motor 15 is connected by gear pair B14 with hub outside clutch 13.

Description of the drawings

Fig. 1 is single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox structure diagram.

In attached drawing：1. 5. high-speed clutch 6. 3 of speed clutch in 2. main clutch of input shaft, 3. low-speed clutch 4. 7. ring gear of planetary gear, 8. planet hack lever, 9. 11. middling speed sun gear of engaging tooth wheel set 10. low-speed sun pinions of A, the 12. high speed sun Take turns 14. 16. variable pump of grinding tooth circle Meshing Pair 15. motors of B of the outer hub of 13. clutches, 17. engaging tooth wheel set C.

Specific embodiment

The utility model is further described below in conjunction with the accompanying drawings.

Single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox as shown in the figure, 1 power of input shaft is through engagement Gear pair C17, variable pump 16, motor 15, engaging tooth wheel set B14 pass to the outer hub 13 of clutch, when low-speed clutch 3 acts on When, power passes to low-speed sun pinion 10 through internal friction disc of the hub outside clutch 13 through clutch 3, when middle speed clutch 4 acts on, Power passes to middling speed sun gear 11 through internal friction disc of the hub outside clutch 13 through clutch 4, when high-speed clutch 5 acts on, moves Power passes to high-speed sun pinion 12 through internal friction disc of the hub outside clutch 13 through clutch 5, above-mentioned to be transferred for hydraulic power；Input 1 power of axis passes to planet hack lever 8 through main clutch 2, this is transferred for machine power.

Single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox as shown in the figure, three planetary gears 6 are by three A planetary gear is formed, and can be engaged respectively with low-speed sun pinion 10, middling speed sun gear 11, the formation of high-speed sun pinion 12, and should Three planetary gears, 6 common planet carrier bar 8, and single compound planetary gear train is formed with ring gear 7, the single compound planetary wheel System is more simple in structure compared with multiple rows of planetary gear, assembling facility.

Single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox as shown in the figure, when low-speed clutch 3 and master When clutch 2 combines, middle speed clutch 4 is separated with high-speed clutch 5 at this time, interior friction of the hydraulic power through low-speed clutch 3 Disk imparts power to low-speed sun pinion 10, and machine power comes from planet hack lever 8, when continuous control variable pump（16）Positive reflux After amount output, motor 15 can continuous rotating, at this time single compound planetary gear train hydraulic power and machine power are converged Afterwards, outputed power by ring gear 7, realize the variable speed run at a low speed of advance and the retroversion of vehicle.

Single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox as shown in the figure, speed clutch 4 is with leading in the middle When clutch 2 combines, low-speed clutch 3 is separated with high-speed clutch 5 at this time, and hydraulic power in low-medium speed clutch 4 through rubbing It wipes disk and imparts power to middling speed sun gear 11, machine power comes from planet hack lever 8, when 16 positive reflux of continuous control variable pump After amount output, motor 15 can continuous rotating, at this time single compound planetary gear train hydraulic power and machine power are converged Afterwards, outputed power by ring gear 7, realize the variable speed driven at moderate speed of advance and the retroversion of vehicle.

Single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox as shown in the figure, when high-speed clutch 5 and master When clutch 2 combines, low-speed clutch 3 is separated with middle speed clutch 4 at this time, and hydraulic power in low high-speed clutch 5 through rubbing It wipes disk and imparts power to high-speed sun pinion 12, machine power comes from planet hack lever 8, when 16 positive reflux of continuous control variable pump After amount output, motor 15 can continuous rotating, at this time single compound planetary gear train hydraulic power and machine power are converged Afterwards, outputed power by ring gear 7, realize the variable speed run at high speed of advance and the retroversion of vehicle.

Single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox as shown in the figure, speed changer by variable pump 16, The hydraulic circuit that motor 15 is formed, power transfers 1/5~1/3 that design is only entire gearbox general power design, and works as When 16 discharge capacity of variable pump is zero, speed changer is the purely mechanic way of output at this time, can further promote the transmission efficiency of speed changer, because This speed changer can realize high-power gear box hydraulic machinery confluence nothing by the stepless output characteristics of low power Hydraulic Elements Grade speed change output performance, merged the advantages of hydraulic stepless speed change is flexible, machinery driving efficiency is high, and can realize low speed, in The variable speed way of output of speed, at a high speed three sections, so as to promote the transmission efficiency of entire transmission system and operate control Flexibility.

Finally illustrating, embodiment of above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although The utility model is described in detail with reference to better embodiment, it will be understood by those of ordinary skill in the art that, it can be with It modifies to the technical solution of the utility model or equivalent substitution, without departing from the objective and scope of the present invention program, Because covering among the right of the utility model.

Claims (2)

1. a kind of single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox, it is characterised in that：Including main clutch （2）, variable pump（16）, motor（15）, the outer hub of clutch（13）, low-speed sun pinion（10）, middling speed sun gear（11）, the high speed sun Wheel（12）, three planetary gears（6）, planet hack lever（8）, ring gear（7）, low-speed clutch（3）, middle speed clutch（4）, at a high speed Clutch（5）；It is characterized in that：Three planetary gears（6）It is made of three gears, and common planet carrier bar（8）, the planet carrier Bar（8）Pass through main clutch（2）With input shaft（1）Connection, with three planetary gears（6）Intermeshing sun gear is low respectively Fast sun gear（10）, middling speed sun gear（11）, high-speed sun pinion（12）, three planetary gears（6）Pass through engaging tooth wheel set A（9） With ring gear（7）Engagement, you can form single compound planetary gear train.

2. single dual planetary gear formula Multi sectional hydraulic mechanical stepless gearbox as described in claim 1, low-speed clutch（3） Internal friction disc and low-speed sun pinion（10）By hollow axis connection, the hollow shaft housing is in planet hack lever（8）On, middle speed clutch （4）Internal friction disc and middling speed sun gear（11）Again by a hollow axis connection, the hollow shaft housing in low-speed sun pinion （10）Outside the hollow shaft of connection, high-speed clutch（5）Internal friction disc and high-speed sun pinion（12）It is hollow again by one Axis connection, the hollow shaft housing in middling speed sun gear（11）Outside the hollow shaft of connection.