CN202628966U

CN202628966U - Novel 16 gear shifting helical tooth double intermediate shaft lockpin type synchronizer gearbox

Info

Publication number: CN202628966U
Application number: CN 201220302873
Authority: CN
Inventors: 任宪群; 王辉; 胡凯; 杨伟玲; 潘书军; 欧阳平
Original assignee: China National Heavy Duty Truck Group Jinan Power Co Ltd
Current assignee: Sinotruk Jinan Power Co Ltd; China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date: 2012-06-27
Filing date: 2012-06-27
Publication date: 2012-12-26
Anticipated expiration: 2022-06-27

Abstract

The utility model discloses a novel 16 gear shifting helical tooth double intermediate shaft lockpin type synchronizer gearbox which comprises a main box part and a vice box part, wherein an input shaft and a main shaft connected with the input shaft are arranged in the main box part, the main shaft is connected with a sun wheel in the vice box part through a spline transition sleeve, the front end of the main shaft and the back end of the main shaft are respectively provided with a main shaft front positioning mechanism and a main shaft back positioning mechanism, and a plurality of helical gears are arrange on the main shaft. The input shaft in the main box part is provided with an input inserting-dividing mechanism, positions between a first gear shifting and a second gear shifting, and between a third gear shifting and a fourth gear shifting are respectively provided with a set of lockpin type synchronizer. A planetary gear train mechanism is arranged in the vice box part. The gear box is labor-saving in operation, stable in gear shifting operation, stable in transmission and low in noise, and can prolong service life.

Description

The two jack shaft pin-type synchronizer gearboxes of novel 16 retaining helical teeth

Technical field

The utility model relates to a kind of gearbox, the two jack shaft pin-type synchronizer gearboxes of especially a kind of novel 16 retaining helical teeth.

Background technique

At present, in the common heavy type lorry transmission-gear box structure, adopt the gearshift of engagement cover; During from a gear ratio conversion to another ratio transmissions; Because the line of contact speed of a pair of gear that will mesh during gearshift or engagement cover is unequal,, cause noise so when engagement, will impact; Even the damage gear teeth, cause premature wear.And the driver needs the rapid and correct at short notice completion gearshift of bigger gearshift power when operation, be prone to cause fatigue.Existing problems when shifting gears in view of above-mentioned heavy type lorry transmission-gear box need on gearbox designs, take measures, and it is smooth-going promptly to guarantee to put into gear, and makes simple to operateization again, alleviates driver's labor intensity.

The model utility content

The purpose of the utility model is for overcoming the deficiency of above-mentioned existing technology, provide a kind of rapid operation, gear shift operation steadily, stable drive, noise be low, the two jack shaft pin-type synchronizer gearboxes of novel 16 retaining helical teeth that can prolong the gearbox physical life.

For realizing above-mentioned purpose, the utility model adopts following technical proposals:

The two jack shaft pin-type synchronizer gearboxes of a kind of novel 16 retaining helical teeth; Comprise main tank part and odd-side part; The main shaft that is provided with input shaft and links to each other in the said main tank part with input shaft; Main shaft through spline spacer shell and odd-side partly in sun gear be connected, the front end and back end of main shaft is respectively equipped with positioning means behind main shaft prelocalization mechanism and the main shaft, main shaft is provided with some helical gears; Input shaft is provided with input and inserts sub-agencies in the said main tank part, on the main shaft in the main tank part between one or two retainings, a cover pin-type synchronizer is housed respectively between three or four retainings; Be provided with planetary wheel mechanism in the said odd-side part.

Said main shaft prelocalization mechanism comprises input shaft, and the input shaft end extend in the hole of front-end of spindle, and the oil leab of input shaft and main shaft is connected through oil pipe; The position that combines with main shaft on the input shaft is equipped with thrust-bearing mechanism; Said input shaft front end is installed on fore shell through bearing of input shaft and input shaft end covers, and said fore shell is fixedly connected with the input shaft end cap; On the said input shaft by the underneath drive gear is installed behind the forward direction successively, sub-agencies and high driving gear are inserted in input.

Said thrust-bearing mechanism comprises and is arranged on the input shaft thrust-bearing behind the input shaft forward thrust bearing before and after the high driving gear and input shaft; The thrust-bearing rear portion contacts with bearing race on being enclosed within input shaft behind the input shaft; Be provided with lining between bearing race and the input shaft, and lining radially and gapped between the input shaft.

Said main shaft and bearing race surface of contact are the main shaft locating face.

Said main shaft forward gear gear dextrorotation structure, the left-handed structure of main shaft reverse gear.

It is single conical surface lock ring type synchronizer that sub-agencies is inserted in said input.

Said pin-type synchronizer comprises the tooth cover that links to each other with shift fork, and tooth puts and is provided with some mounting holes, and locating stud and lock pin pass the mounting hole that tooth puts respectively, and locating stud and lock pin two ends are riveted on respectively in the mounting hole of high retaining synchronizing ring and low retaining synchronizing ring; The male cone (strobilus masculinus) of high retaining synchronizing ring and low retaining synchronizing ring matches with the inner conical surface of its pairing gear respectively; Tooth puts and below locating stud, is provided with blind hole, is provided with pushing block in the blind hole, and the pushing block set inside has spring; The tooth cover is installed on the main shaft through spline.

All be bonded with friction material layer on the male cone (strobilus masculinus) of said high retaining synchronizing ring and low retaining synchronizing ring.

Said planetary wheel mechanism comprises sun gear that is arranged at rear-end of spindle and the some planet wheels that are arranged on the planet carrier that are meshed with sun gear, and the sun gear rear end is provided with thrust-bearing.

The main tank gear of the utility model adopts the helical teeth design, is different from the helical gear rotation direction of conventional design, and main shaft forward gear gear is dextrorotation, makes axial force point to left end.Main shaft adopts forward and backward two location, and main tank is when retaining, and axial force and conventional design that each corresponding shaft of gearbox receives are opposite; The axial force to the right that bearing of input shaft is given by driving gear; Main shaft receives axial force left, is balancing main shaft and input shaft axial force, the diaxon position that combines; Thrust bearing is installed, offsets the axial force of input shaft and main shaft; When main tank was shifted gears to low gear, main shaft bore gearshift power to the right, and the sun gear rear end is equipped with thrust-bearing, through the planet carrier balancing axial thrust.

The utility model adopts major and minor case modular design, the two jack shaft structures of main tank, and gear adopts helical teeth.Main shaft adopts forward and backward pair of location, and thrust-bearing is adopted in the sun gear rear end, offsets the axial force that helical teeth produces, and bears the axial force that produces when shifting gears.Separation structure is inserted in input, adopts single conical surface lock ring type synchronizer gearshift, and compact structure combines preposition slotting branch retaining structure and main tank together, under the little situation of increase gearbox entire length, the gear of gearbox is doubled, and each gear speed ratio jump is little.Between one or two retainings, install a cover pin-type synchronizer between three or four retainings respectively additional, purpose is to increase the synchronizer friction torque, reduces gearshift power, the impact and the noise that produce when reducing gearshift.Odd-side planetary gear train structure improves odd-side bearing capacity and life-span, has reduced the transmission assembly noise significantly, has improved the gearbox bearing capacity, realizes that gear shift operation is light, steady.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is a front-end of spindle location schematic representation;

Fig. 3 is a main shaft rear positioning structure schematic representation;

Fig. 4 is one or two retaining pin-type synchronizer structural representations;

Wherein: 1, input shaft end cap; 2, fore shell; 3, bearing of input shaft; 4, underneath drive gear; 5, insert the single conical surface lock ring type synchronizer of branch retaining; 6, input shaft forward thrust bearing; 7, high driving gear; 8, thrust-bearing behind the input shaft; 9, bearing race; 10, lining; 11, oil pipe; 12, input shaft; 13, main shaft; 14, toothholder jump ring; 15, insert branch retaining toothholder; 16, spline spacer shell; 17, main shaft sun gear adjustment pad; 18, sun gear; 19, thrust-bearing behind the sun gear; 20, pad behind the sun gear; 21, planet carrier, 22, the main shaft second gear; 23, declutch shift shaft; 24, shift fork; 25, high retaining synchronizing ring; 26, locating stud; 27, tooth cover; 28, pushing block; 29, spring; 30, main shaft first gear; 31, lock pin; 32, low retaining synchronizing ring; A is the main tank part of two jack shaft structures; B is the odd-side part of planetary gear train structure; C inserts sub-agencies for input; D is three or four retaining pin-type synchronizers; E is one or two retaining pin-type synchronizers.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Shown in Fig. 1-4; The two jack shaft pin-type synchronizer gearboxes of novel 16 retaining helical teeth; Comprise main tank part A and odd-side part B, the main shaft 13 that is provided with input shaft 12 in the main tank part A and links to each other with input shaft 12, main shaft 13 is connected through sun gear 18 among spline spacer shell 16 and the odd-side part B; The front end and back end of main shaft 13 is respectively equipped with positioning means behind main shaft prelocalization mechanism and the main shaft, and main shaft 13 is provided with some helical gears; Input shaft 12 is provided with input and insert divides C among the said main tank part B, on the main shaft in the main tank part A between one or two retainings, a cover pin-type synchronizer is housed respectively between three or four retainings; Be provided with planetary wheel mechanism among the said odd-side part B.

Insert to divide the single conical surface lock ring type synchronizer 5 of retaining to control that power on the input shaft 12 passes to driving gear low 4 or driving gear is high by 7 through handling, realize that the different rotating speeds of main shaft 13 reaches the purpose that increases the gearbox gear.

The input shaft front end is installed on fore shell 2 and the input shaft end cap 1 through bearing of input shaft 3, and said fore shell 2 is fixedly connected with input shaft end cap 1; Insert and divide the single conical surface lock ring type synchronizer 5 of retaining to be arranged at slotting the branch on the retaining toothholder 15, insert and divide retaining toothholder 15 to be installed on the input shaft 12, and be implemented in location on the input shaft 13 through toothholder jump ring 14.

Input shaft 12 stretches in main shaft 13 holes, and oil pipe 11 connects input shaft 12 and main shaft 13 oil leabs; Main shaft 13 is main shaft 13 locating faces with bearing race 9 surface of contact; Bearing race 9 is installed powder metallurgy lining 10, and lining 10 radially leaves the gap with input shaft 12, floats to realize main shaft 13; The dextrorotation of transmission main shaft forward gear gear; The main shaft reverse gear is left-handed; Main shaft 13 axial forces left, main tank is in when retaining, main shaft 13 axial force transmission are to bearing race 9; Then carry out the transition to input shaft 12 by thrust-bearing 8, high driving gear 7, input shaft forward thrust bearing 6 behind the input shaft, lean on input shaft 12 balances; High driving gear 7 has initiatively and two kinds of functions of passive transmission; In the time of initiatively axial force to the right, when passive axial force left, when high driving gear 7 passive during at retaining; Produce speed discrepancy between itself and the input shaft 12; Axial force is pointed to input shaft 12, is balancing axial thrust, installs input shaft forward thrust bearing 6 additional between high driving gear 7 and input shaft 12 end faces.

When main tank is shifted gears to low gear; Main shaft 12 bears axial gearshift power to the right, is delivered to sun gear 18 through main shaft sun gear adjustment pad 17, is delivered to pad 20 behind thrust-bearing 19 behind the sun gear, the sun gear then; Be delivered to planet carrier 21 at last, lean on planet carrier 21 balances.

Main tank A gear adopts the helical teeth design; The forward gear gear is dextrorotation on the main shaft 13; Axial force and conventional design that each corresponding shaft receives are opposite, and main shaft 13 axially locating move to front, main shaft 13 position that combines with input shaft 12; Thrust bearing is installed, offsets the axial force of input shaft 12 and main shaft 13.

Odd-side B adopts planetary gear train, and purpose is to improve odd-side bearing capacity and life-span.

Separation structure C is inserted in input, and compact structure combines preposition slotting branch retaining structure and main tank together, under the little situation of increase gearbox entire length, the gear of gearbox is doubled, and each gear speed ratio is differential little.

Three or four retaining pin-type synchronizer D and one or two retaining pin-type synchronizer E comprise high retaining synchronizing ring 25, low retaining synchronizing ring 32, tooth cover 27, some locating studs 26, some lock pins 31, some pushing blocks 28, some springs 29.Bonding friction material on the male cone (strobilus masculinus) of high retaining synchronizing ring 25, low retaining synchronizing ring 32.Tooth cover 27, high retaining synchronizing ring 25, low retaining synchronizing ring 32 are provided with some mounting holes, and locating stud 26, lock pin 31 pass the mounting hole on the tooth cover 27 respectively, and two ends are riveted on respectively in the mounting hole on high retaining synchronizing ring 25, the low retaining synchronizing ring 32.Below locating stud 26, be provided with blind hole on the tooth cover 27, spring 29 places pushing block 28 inside, and pushing block 28 places in the above-mentioned blind hole.Tooth cover 27 is installed on the main shaft 13 through spline.

Describe the two jack shaft helical teeth transmission lock pin-type synchronizer working procedure of the utility model 16 retainings in detail in conjunction with Fig. 4.When the manipulation gearbox changes a retaining; Declutch shift shaft 23 drive shift forks 24 are stirred tooth cover 27 and are moved to main shaft first gear 30 vertically; Leave main shaft second gear 22; Locating stud 26 drove high retaining synchronizing ring 25 before the elastic force that does not overcome spring 28, low retaining synchronizing ring 32 moves to main shaft first gear 30 vertically; Make the male cone (strobilus masculinus) of low retaining synchronizing ring 32 contact and produce friction torque with the inner conical surface of main shaft first gear 30; The lock pin that has the locking conical surface 31 that forces synchronizing ring 32 and be riveted together with it rotates, and promptly lock pin 31 rotates an angle in the mounting hole of the tooth cover 27 corresponding locking conical surfaces, makes tooth cover 27 and lock pin 31 mutual locking under the effect of friction torque.When low retaining synchronizing ring 32 is consistent with the rotating speed of main shaft first gear 30; Tooth cover 27 finishes locking with lock pin 31; Locating stud 26 overcomes spring force and presses down pushing block 28; Tooth cover 27 continues to move to main shaft first gear 30 vertically, and tooth overlaps 27 external spliness and the engagement of main shaft first gear 30 internal splines, accomplishes no crash change of speed process.

Though the above-mentioned accompanying drawing that combines is described the embodiment of the utility model; But be not restriction to the utility model protection domain; One of ordinary skill in the art should be understood that; On the basis of the technological scheme of the utility model, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection domain of the utility model.

Claims

1. keep off the two jack shaft pin-type synchronizer gearboxes of helical teeth for one kind novel 16; It is characterized in that; Comprise main tank part and odd-side part, the main shaft that is provided with input shaft and links to each other in the said main tank part, main shaft with input shaft pass through spline spacer shell and odd-side partly in sun gear be connected; The front end and back end of main shaft is respectively equipped with positioning means behind main shaft prelocalization mechanism and the main shaft, and main shaft is provided with some helical gears; Input shaft is provided with input and inserts sub-agencies in the said main tank part, on the main shaft in the main tank part between one or two retainings, a cover pin-type synchronizer is housed respectively between three or four retainings; Be provided with planetary wheel mechanism in the said odd-side part.

2. the two jack shaft pin-type synchronizer gearboxes of novel 16 retaining helical teeth as claimed in claim 1; It is characterized in that; Said main shaft prelocalization mechanism comprises input shaft, and the input shaft end extend in the hole of front-end of spindle, and the oil leab of input shaft and main shaft is connected through oil pipe; The position that combines with main shaft on the input shaft is equipped with thrust-bearing mechanism; Said input shaft front end is installed on fore shell through bearing of input shaft and input shaft end covers, and said fore shell is fixedly connected with the input shaft end cap; Fore shell is interior by underneath drive gear, the slotting sub-agencies of input and high driving gear are installed behind the forward direction successively on the said input shaft.

3. the two jack shaft pin-type synchronizer gearboxes of novel 16 retaining helical teeth as claimed in claim 2; It is characterized in that; Said thrust-bearing mechanism comprises and is arranged on the input shaft thrust-bearing behind the input shaft forward thrust bearing before and after the high driving gear and input shaft; The thrust-bearing rear portion contacts with bearing race on being enclosed within input shaft behind the input shaft, is provided with lining between bearing race and the input shaft, and lining radially and gapped between the input shaft.

4. the two jack shaft pin-type synchronizer gearboxes of novel 16 retaining helical teeth as claimed in claim 3 is characterized in that said main shaft and bearing race surface of contact are the main shaft locating face.

5. the two jack shaft pin-type synchronizer gearboxes of novel 16 retaining helical teeth as claimed in claim 1 is characterized in that said main shaft forward gear gear dextrorotation structure, the left-handed structure of main shaft reverse gear.

6. the two jack shaft pin-type synchronizer gearboxes of novel 16 retaining helical teeth as claimed in claim 1 is characterized in that it is single conical surface lock ring type synchronizer that sub-agencies is inserted in said input.

7. the two jack shaft pin-type synchronizer gearboxes of novel 16 retaining helical teeth as claimed in claim 1; It is characterized in that; Said pin-type synchronizer comprises the tooth cover that links to each other with shift fork, and tooth puts and is provided with some mounting holes; Locating stud and lock pin pass the mounting hole that tooth puts respectively, and locating stud and lock pin two ends are riveted on respectively in the mounting hole of high retaining synchronizing ring and low retaining synchronizing ring; The male cone (strobilus masculinus) of high retaining synchronizing ring and low retaining synchronizing ring matches with the inner conical surface of its pairing gear respectively; Tooth puts and below locating stud, is provided with blind hole, is provided with pushing block in the blind hole, and the pushing block set inside has spring; The tooth cover is installed on the main shaft through spline.

8. the two jack shaft pin-type synchronizer gearboxes of novel 16 retaining helical teeth as claimed in claim 7 is characterized in that, all are bonded with friction material layer on the male cone (strobilus masculinus) of said high retaining synchronizing ring and low retaining synchronizing ring.

9. the two jack shaft pin-type synchronizer gearboxes of novel 16 retaining helical teeth as claimed in claim 1; It is characterized in that; Said planetary wheel mechanism comprises sun gear that is arranged at rear-end of spindle and the some planet wheels that are arranged on the planet carrier that are meshed with sun gear, and the main shaft of sun gear rear end is provided with thrust-bearing.