Transmission

FIELD: transport.

SUBSTANCE: gearbox is arranged right behind the engine, while the clutch with engine flywheel is mounted behind the gearbox. The engine flywheel seats on the input shaft output, the clutch pressure plate being fitted between the gearbox and engine flywheel and furnished with linkage between the pressure diaphragm spring and flywheel. The clutch driven plate is fitted on the gearbox drive tubular shaft. The later supports the gear that accommodates two-position one-way coupling. Similar coupling, turned towards opposite side, is fitted on the output shaft gear. Both couplings are articulated by the shifter fork. All gears run free on the gearbox shafts.

EFFECT: improved repairability, perfected design.

2 dwg

 

The invention relates to transport machinery, transmission vehicles.

Known transmission units with speed change gear ratios, containing gears, shafts, bearings, gear used on domestic and foreign cars (Usachov CENTURIES, Frumkin, A. Car: Analysis of structures, the elements of the calculation. - M.: Mashinostroenie, 1989. - 304 S.).

These units are structurally complex and bulky.

Closest to the proposed transmission is a traditional transmission-based non-axial twin-shaft six-speed gearbox (gearbox) patent RU NO. 2149767, UK 17/08 (27.05.2000 bull. No. 15).

In traditional transmission clutch installed between the engine and gearbox, parallel housed in a gearbox input and output shafts freely mounted four pairs vzaimozachetnykh gears, number of gears reverse, and four gear input shaft merged into the block on the input shaft between the gear train and a separate gear set three-position clutch switch, next to the clutch on the output shaft is a block of two gears and a two-position clutch.

Accommodation clutch immediately after the engine layout limits the possibility of transmission because of the size of the flywheel, so Yves due to shifting of the differential from the middle of the gauge, what causes problems with the layout of the cardan gear drive wheels: the necessity of application of shafts of different lengths, installation of balance of goods etc. Traditional layout of the powertrain (engine, clutch, gearbox) reduces maintainability. The replacement of short-lived clutch disc for wear of the friction lining paired with complex operations.

Object of the invention is improved layout capabilities and maintainability of the transmission.

The technical result is achieved due to the moving vehicle's flywheel with the clutch on the periphery of the transmission that lets you shift differential is closer to the axis of the vehicle.

The achievement of the technical result is ensured by the fact that the transmission containing the clutch with pressure plate diaphragm spring, the housing of the unit hosting the non-axial twin-shaft transmission, the main transmission and differential, drive shafts of the drive wheels, in parallel placed in the gearbox input and output shafts freely mounted four pairs vzaimozachetnykh gears, number of gears reverse, and four gear input shaft joint in the unit, on the output shaft has two three-position clutch, the gearbox is installed immediately behind the engine, and the scene is executed with the flywheel of the engine for transmission, the flywheel is fixed on the output shaft, the clutch disc clutch is located between the transmission and the flywheel, it has a mechanical connection between the clutch diaphragm spring and the flywheel, the clutch disc is installed on the tubular shaft of the drive transmission, the gear of the shaft is a two-position clutch unilateral actions similar coupling deployed in the other direction, is installed on the gear output shaft, two clutch interconnected with a fork switch.

Figure 1 shows the kinematic diagram of the transmission on the basis of non-axial twin-shaft six-speed gearbox 6R2 (6 speeds forward and 2 reverse gears) with symmetric differential. Clutches a, b and C shown in the neutral position, in fact, couplings And in this position is not fixed, and only pass it when shifting gears. At the bottom, under the scheme, within the circles of the figures 1, 2, 3 and 4, indicating the rooms above them pairs of gears, and the letter R indicating the number of gears reverse.

Figure 2 presents the radial chart table provisions of the coupling switch to a different gear: R - right, L - left, H - neutral. The number of speeds forward (6-1) are indicated on the upper horizontal. Reverse gear is indicated by the lower horizontal (2R, 1R). In the upper part of the table shows the number of pairs of gears, working on the transmission. On the horizontal beam scales chart in logarithmic form presents the values of the ratios of pairs of gears and gear. On average horizontal left t corresponds to the input shaft, in the extreme contours of the magnitude of the ratios is given to the output shaft. The inclination of the beam to the right characterizes the slow mode of operation of the pair of gears than the provisions of the beam, the greater the gear ratio. The inclination of the beam to the left indicates an accelerating mode of the pair of gears. The tilt of the beam of each pair of gears is constant on any part of the radiation diagram.

In bearings of the casing unit 1 are input shaft 2 and output shaft 3. The output of the input shaft 2 is fixed to the flywheel of the engine 3, which with the help of the guide device 4 fixed pressure plate of the clutch 5. A guiding device 4 communicates with a pressure diaphragm (disc flap) spring 6, which has bilateral support 7 on the flywheel 3. The inner ends of the diaphragm spring 6 is located on the clutch, the clutch 8 with the clutch release bearing 9 mounted on the rail 10, within which is located a bearing of the input shaft 2. Fork clutch 11 has a support 12 in the housing unit 1, the inner end of this plug is located in PA is the coupling of the clutch 8. The clutch disc 13 with a friction linings disposed between the flywheel 3 and the pressure disc 4 is mounted on the tubular shaft 14 of the drive gearbox on this shaft is fixed a leading gear 15. On the input shaft 2 freely mounted gear train 16, 17, 18 and 19. The gears 15, 16, 17 and 18 are meshed respectively with the gears 20, 21, 22 and 23, which are freely mounted on the output shaft 3, which is also freely set the slave reverse gear 24. Led by the reverse gear 24 through the intermediate gear 25 meshed with the gear 19 of the gear train. Dip the clutch unilateral action 26 is installed on the crown gear 15 of the actuator CP is similar to the clutch 27 is deployed to the other side and set on the crown gear 21 and the driven shaft 3. Plug the switch 28 connects the clutch 26 and 27 (A). Three-position clutch 29 (C) is installed on the hub of the output shaft 3 between the gears 21 and 22, similar to the clutch 30 (C) is located between the gears 23 and 24. At the end of the output shaft 3 fixed leading gear 31, which is meshed with a driven gear 32 main gear. The housing of the differential gear 33 fixed on the driven gear 32 on the cross (axis) 34 differential installed satellites 35, meshed with the gear 36 of drive shafts 37 of the drive wheels.

Another possible placement of the couplers And the coupler 26 on the wide crown gear 16,and the coupling 27 on the wide crown gear 20.

The operation of the transmission is as follows.

Currently, promising clutch with push pull diaphragm (disc flap) spring. When the clutch cover diaphragm spring 6, based on bilateral support 7 of the flywheel 3 through a guiding device 4 pulls the pressure plate 5 in the direction of the flywheel 3 and clamps the clutch disc 13 with a friction lining between the flywheel 3 and the pressure disk 5. Friction in friction pairs (flywheel - clutch disc and flywheel - pressure plate) transfer the torque to the clutch disc 13 and the tubular shaft 14 of the drive gearbox. A guiding device 4 allows only axial movement and prevents angular displacement of the pressure disc 5 relative to the flywheel 3. Fixation of the pressure disc 5 relative to the flywheel 3 (not shown in figure 1) is possible in various ways: special grooves in the flywheel or window in the casing of the clutch, including the projections of the pressure disc; guide pins; keyed connection type. At the present time are applied tangential elastic plate, evenly spaced and riveted on one side to the pressure disc, and on the other hand to clutch cover fixed to the flywheel.

For gear or enable the neutral position in the CP stephaniewylde through the clutch (not shown in figure 1), which moves the outer end of the plug off 11. Plug 11 rests on a support 12 in the housing unit 1 and moves along the guide 10 sleeve off 8 clutch release bearing 9 and the inner part of the clutch diaphragm spring 6 in the direction of the flywheel 3. Diaphragm spring 6 rests on bilateral support 7 of the flywheel 3 and the guide device 4 removes the pressure disk 5 from the flywheel 3, providing the gaps between the slave disk 13 and the flywheel 3 with one hand, and pressure disk 5 with the other hand. Torque does not come on CP, which allows you to change gear.

The first transmission

Coupling a and C are in the left position and the clutch is in neutral (see table. over V.1 figure 2).

Torque from the input shaft 2 is transmitted to the flywheel 3, a guiding device 4 and the pressure plate 5, on the clutch disc 13, the tubular shaft 14, the pair of gears 15-20, the clutch 27 (A) in the left position is fed to the pair of gears 16-21, then the unit for a couple of gears 18-23, the clutch 30 (C) in the left position on the output shaft 3, a pair of gears 31-32 main gear, the differential case 33, the cross-piece 34, 35 satellites, they are on gear 36 of drive shafts 37 of the drive wheels.

Radiation diagram (see figure 2) this transmission is represented by three rays emerging from t on the middle horizontal line. Gentle beam 1 is directed supravalvar to v.3, then the beam 2 to the right, down and beam 4 right up to vol.1

A second pass

The clutch switch in the right position, and the clutch is in neutral. A pair of gears 18-23 off from work, instead, it includes a pair of 17-22. Radiation diagram this transmission is represented by three beams: beam 1 is directed to the right up to v.3, then the beam 2 to the right, down and beam 3 right up to volume 2.

Third gear

The clutch switch in the left position. From treharne links go to onopordum. The torque is transmitted by a pair of gears 14-20, then the clutch 27 (A) on the pinion housing 21, the clutch 29 (C) in the left hand position on the output shaft 3 and further, as in the previous transmission. Radiation diagram this transmission is represented by beam 1 to volume 3.

The fourth transfer

Switchable coupling And in the right position, in neutral and With - in the left position. Torque from the input shaft 2 to the tubular shaft 14 is transmitted, as in the previous transmission, then the clutch 26 (A) in the right position comes to the gear train, a pair of gears 18-23 and clutch 30 (C) in the left position on the output shaft 3 and further, as in the previous transmission. Radiation diagram this transmission is represented by the beam 4 to vol.4.

The fifth transmission

Switchable clutch in the right position, and the clutch is in neutral. From the input shaft 2 through the gear train torque is transmitted as in the previous paragraph is the transfer, then a pair of gears 17-22 and clutch 29 (C) in the right position on the output shaft 3 and further, as in the previous transmission. Radiation diagram this transmission is represented by the beam 3 to V.5.

The sixth transmission

The clutch switch in the left position. The torque is transmitted by a pair of gears 16-21 and clutch 29 (C) in the left position. Unlike the first and second gears this pair of gears works in the other direction, she previously transmitted torque from the gear 21 on the output shaft 3 to the gear train input shaft 2 in slow mode, on the sixth transmission this pair of gears running in an accelerating mode from the input shaft 2 to the outlet 3. Radiation diagram this transmission is represented by beam 2 from t to V.6.

The first back - 1R

The clutch And in the left position, in neutral, With - in the right position. In contrast to the first transmission instead of a pair of gears 18-23 includes a number of gears reverse 19-25-24. Radiation diagram this transmission is represented by rays: 1 - from t right up to v.3, 2 - right, down, R - right down to .1R.

The second reverse

The clutch And in the right position. The torque to the gear train is transmitted as 3-6 speeds forward, next gears reverse 19-25-24. Radiation diagram this transmission is represented by a ray R right down to .2R.

Transmission containing coupling with a pressure diaphragm PR is Inoi, the body of the unit hosting the non-axial twin-shaft transmission, the main transmission and differential, drive shafts of the drive wheels, in parallel placed in the gearbox input and output shafts freely mounted four pairs vzaimozachetnykh gears, number of gears reverse, and four gear input shaft joint in the unit, on the output shaft has two three-position clutch, characterized in that the transmission is installed immediately behind the engine, and the clutch with the flywheel of the engine - gearbox, flywheel fixed to the output shaft, the clutch disc clutch is located between the transmission and the flywheel he has a mechanical connection between the clutch diaphragm spring and the flywheel, the clutch disc is installed on the tubular shaft of the drive transmission, the gear of the shaft is a two-position clutch unilateral actions similar coupling deployed in the other direction, is installed on the gear output shaft, two clutch interconnected with a fork switch.



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: invention is related to hybrid power units of vehicles and may be used in city transport, for instance bus. Hybrid power unit of vehicle comprises primary power supply source (1), energy accumulator in the form of, for instance flywheel (18) or accumulator, and also drive comprising planetary disc variator (4), mechanism (12) for forced variation of gear ratio of planetary disc variator (4), which is arranged, for instance in the form of screw-nut gear, system (14) for control of mechanism for variation of gear ratio of planetary disc variator (4), periodically switched unit, for instance demultiplicator (29) comprising one or several gear switched drives, which transmits rotation from planetary disc variator (4) to drive of traction wheels (35) of vehicle. Range of gear ratios variation of periodically switched unit is arranged as lower than range of planetary disc variator variation.

EFFECT: saving of fuel and improved ecological compatibility of vehicle.

18 cl, 5 dwg

Gearbox // 2352476

FIELD: transport.

SUBSTANCE: gearbox crankcase represents housing with the main cover bolted to the housing mounting place to form a cavity there between designed to accommodate two primary shafts and one secondary shaft. The said primary shafts represent a hollow outer and an all-metal inner shafts fitted coaxially. A pair of driving gear wheels is fitted on the outer primary shaft and three gear wheels are mounted on the inner primary shaft. The said gear wheels are made integral with the primary shafts so that uneven gearings are driven from the inner primary shaft and even gearings are driven from the outer primary shaft via the clutches. The said clutches are fitted on the secondary shaft. The said gearshift clutches are fitted on the secondary shaft between appropriate gear wheels fitted on the shaft unfixed. The housing accommodates the reverse gears assembly with its primary gear wheel in mesh with the gear wheel made integral with the inner primary shaft, while its secondary gear wheel is in mesh with reverse gear wheel fitted on the secondary shaft. The aforesaid cover is bolted the gearbox housing and, depending upon the axle and engine arrangement, can have an outlet hole and flange sealing device.

EFFECT: higher efficiency of power plant and automatic gear shifting.

1 dwg

FIELD: transport.

SUBSTANCE: invention relates to vehicle transmissions, particularly, to differentials with automatic wheels locking. The proposed differential comprises drive housing accommodating moving ball closed chains incorporating with half-axle components. The said components are fitted aligned on half-axles. The drive element represents a plate, the ball chains being fitted in the holders furnished with axles mounted in through slots of the drive housing at equal radial distance from the drive housing axis. The ball chains are arranged so as to allow the balls to pass along the variable-depth figurate paths arranged in symmetry on the flange opposite end faces. The said flanges seat on the aforesaid half-axle elements.

EFFECT: higher reliability, compact design.

6 cl, 6 dwg

FIELD: transport.

SUBSTANCE: gearshift clutch and toothed rim with internal and external gearing, controlled by one sliding bar, allow operating planetary mechanism in three operating conditions. The first operating condition is direct transmission, the second operating condition means reduction gear with maximum gear ratio and stopped epicyclical wheel and the third operating condition means reduction gear with output shaft reverse rotation and stopped pinion frame.

EFFECT: better operating performances due to increased number of forward speeds, increased efficiency.

2 dwg

FIELD: transport.

SUBSTANCE: proposed gearbox incorporates an input and output shafts running in bearings and a lay shaft arranged parallel to the said input and output shafts. The output and lay shafts are furnished with the supports in the gearbox housing intermediate wall. The input shaft rear end is fitted in the output shaft end. The input shaft comprises a reverse drive gear and three forward running gears made integral with the aforesaid shaft. The input shaft supports also dual-direction gear free running thereon and accommodating a two-position coupling. One driven gear runs free on the output shaft end, while two other driven gears are fitted on the output shaft unfixed with a three-position coupling arranged there between. Three drive gears, dual-direction gear and three forward running driven gears in mesh with the input and output shaft gears run on the lay shaft. The reverse gear is fitted unfixed on the lay shaft to engage with the additional reverse gear. The said lay shaft supports two unfixed three-position coupling seating between the lay shaft gears. Similar coupling is fitted on the output shaft end.

EFFECT: reduced metal input, higher efficiency.

2 dwg

FIELD: transport.

SUBSTANCE: automatic multiple speed transmission based on a stepped planetary gear train includes input and output shafts. The input shaft has a stepped planetary gear train and reverse planetary gear mounted thereon. The output shaft has driven gears and centrifugal governor mounted thereon. The stepped planetary gear train contains several sun gears fixedly connected to the input shaft and integrated into a train with several sets of pinions mounted on the common carrier block and rotating around the gears. The annulus gears of the stepped planetary gear train are installed so that they can freely rotate on the input shaft. There are two driving gears located on each end of the carrier block, out of which two are connected to the carrier block in a fixed manner and the other two are connected to the carrier block through forward friction clutches. The driving gears are engaged with respective forward driven gears on the output shaft. The outer collars of one-way clutches and the drive portion of the friction clutches have permanent magnets installed and lock slots provided thereon. The planetary gear casing and the driven portion of the friction clutches contain rotation speed sensors and locks; the outer collar of a one-way clutch is fixed by a lock that is controlled by the control unit based on speed sensor parameters transmitted to it.

EFFECT: higher efficiency and smaller size of a multiple speed transmission; reduced power losses as required to maintain pressure in the hydraulic system.

5 dwg

Planetary gearbox // 2324850

FIELD: transportation, trackless surface vehicles.

SUBSTANCE: invention pertains to the field of motor transport engineering and relates to staggered planetary gear box. The automatic hydro mechanical gear box consists of casing (1), input link (3), output link (4) and planetary reduction gear. In the planetary reduction gear, there are three frictional clutches and four friction brakes. The first planetary gear set consists of central gear (5), drive (6) for satellites and crown gear (7). The second planetary gear set consists of central gear (8), drive (9) for satellites and crown gear (10). The third planetary gear set consists of central gear (11), drive (12) for satellites and crown gear (13). The input link (3) is joined to rigidly interconnected drive (6) and the central gear (8). The crown gear (13) is connected to the output link (4) of the gear box. Drive (9) is connected to the control frictional clutch (15) through drive (6), which is rigidly connected to the central gear (8). Crown gear (10) is connected through the control frictional clutch (16) to drive (12), which is rigidly fixed to the central gear (5). Frictional brakes (17) joins the crown gear (7) to the casing (1) of the gear box. Frictional brakes (18) connect interconnected drive (9) and central gear (11) to the casing (1) of the gear box. Frictional brakes (19) connects the crown gear (10) to the casing (1) of the gear box. Frictional brakes (20) connects interconnected drive (12) and the central gear (5) to the casing (1) of the gearbox. This allows for enhancement of dynamic properties and broadening of the range of transmission ratios.

EFFECT: enhancement of dynamic properties and broadening of the range of transmission ratios.

5 cl, 6 dwg

FIELD: transport engineering.

SUBSTANCE: input shaft 2 and primary shaft 3 are coaxially installed in supports of gearbox housing. Secondary shaft 4, carrier shaft 5 and output shaft 6 are arranged parallel to coaxial shafts 2 and 3. Gear 7 is fixed on primary shaft 3, gear 8 is freely fitted at one side and gear cluster consisting of two gears 9 and 10 is installed at other side. Gear cluster consisting of gears 11 and 12 engaging with gears 8 and 7 of primary shaft and gears 13 and 14 engaging with cluster of gears 9 and 10 on primary shaft are installed on secondary shaft 4. Sun gear 15a of planetary mechanism is secured at output of secondary shaft 4, said gear being engaged with planet pinions 16 arranged on axles of carrier 17H. Planet pinions 16 are in meshing with epicyclic wheel 18b. Gear 8 is connected by tubular shaft 19 with gear rim 20, gear rim 21 is secured on primary shaft 3, and three-position gear rim 22 is secured on input shaft 2, three-position shifter clutch 23A being fitted on gear rim 22. Two position twin clutch B consists of clutches 24 and 25 interconnected by shifter fork 26. Clutch 24 is installed on gear rim of gear 7 of primary shaft 3, and clutch 25, on gear rim of gear 13 of secondary shaft 4. Two-position clutch 27C is fitted on hub of secondary shaft 4 between gears 13 and 14. Gear rim 28 is secured on tubular shaft 29 of housing of epicyclic wheel 18. Two-position gear rim 30 is secured on carrier shaft 5. Three-position gear rim 31 is secured on output shaft 6 which carries shifter clutch 32 connected for sliding with slider 33. Gear rim 34 with internal and external meshing is secured on slider 33, external teeth being engaged with three-position gear rim 35 of housing 1, and gear rim 36 of carrier 17 and gear rim 37 of housing of epicyclic wheel 18 are arranged opposite to external gearing.

EFFECT: reduced metal usage, simplified design of gearbox.

2 dwg

FIELD: transport engineering.

SUBSTANCE: proposed gearbox contains coaxial input, primary and secondary shafts and countershaft parallel to them, two-position twin clutch consisting of two one-way clutch members intercoupled by shifter fork, shifter clutch installed on gear rim of input shaft and shifter clutch installed on gear rim of outer shaft. Simple three-link planetary mechanism is installed on secondary shaft of gearbox.

EFFECT: enlarged operating capabilities of vehicle owing to increased number of speeds and range of gearbox.

2 dwg

FIELD: transport engineering.

SUBSTANCE: invention can be used in vehicles and in drives of mounted equipment of special vehicles. Shifter clutch of gearbox output shaft is brought out of reduction gear part. Cluster of two gears is freely fitted on secondary shaft and one gear is fixed. Shifter clutch is arranged in between, being coupled by slider with other clutch arranged between gears of primary shaft. Carrier shaft gear rim is two-position, and gear rim of output shaft is three-position one. Shifter clutch on said rim is provided with three internal gear rims. Gear rim with internal and external meshings is rigidly secured on slider of shifter clutch. External gearing of rim is engaged with three-position gear rim of housing.

EFFECT: enlarged operating capabilities of vehicle, reduced metal usage of set.

2 dwg

FIELD: transport engineering; tractors.

SUBSTANCE: invention relates to hydraulically operated friction clutches. Proposed friction clutch contains hub secured on shaft of gearbox, hydraulic cylinder with radial projections made on hub, piston with pressure disk, thrust disk, inner drum made integral with driven gear and connected by gear joint with driving disks, driven disks connected with outer drum, ring groove made on inner surface of outer drum, and lockring. Novelty is that outer drum and thrust disk are made in form of common part, outer drum is provided with longitudinal projections, with outer projections of driven disks fitted in slots between longitudinal projections. Ends of projections of outer drum are installed between radial projections of hydraulic cylinder, and lockring is arranged in ring channel formed by ring grooves made on inner surface of outer drum and on outer surface of hydraulic cylinder.

EFFECT: reduced wear of disks, increased transmitted power and improved repairability of clutch.

2 dwg

Gear box // 2253781

FIELD: mechanical engineering.

SUBSTANCE: gear box comprises shafts (3)-(5) with gear wheels (6)-(9), housing (18) provided with load-bearing wall (19) with supports (20) and (21), shafts (4) and (5), three-link differential mechanism (15) whose one link is connected with the secondary shaft (5), mechanism for shifting gears, and device for control of the differential mechanism. Wall (19) is made of detachable lid which encloses the differential mechanism (15) and mates the longitudinal wall of housing (18).

EFFECT: enhanced reliability.

9 cl, 11 dwg

Gear box // 2254507

FIELD: mechanical engineering.

SUBSTANCE: gear box comprises housing (1) made of the front and rear cap-shaped parts whose longitudinal walls are mating in the transverse plane. The housing receives input shaft (16) with pinion (22), side shaft (17) with pinions (23)-(25), intermediate shaft (19), output shaft (18), and three-link planet mechanism (37) with the device for its locking and connecting its link with the reactive gear member (38) connected with housing (1). Shafts (16)-(19) with pinions and planet mechanism (37) are arranged in the single space between front (5) and rear (10) outer walls of housing (1) which define supports for the shafts.

EFFECT: decreased sizes and reduced metal consumption.

4 cl, 4 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention can be used in different vehicles and in devices and mechanisms for clashless engagement of driven shafts. Proposed torque converter contains drive and driven units of converter. Drive unit is made in form of disks 2-5 with slots freely fitted on splined shaft 1. Movable blades are fitted in said slots. Driven unit of converter is made in form of cylindrical housing 7 with driven shaft 16 and rings 11 and 12 fitted on shaft. Disks 2-5 with blades 6 of drive unit of converter are arranged inside rings. Slots in disks 2-5 of drive unit of converter are made through being arranged tangentially. Each of rings 11, 12 in cylindrical housing 7 of converter driven unit is installed for rolling on guide 13, being connected with axle-shaft 14 flush-fitted in cradle of step bearing 15 whose body is in rigid engagement with cylindrical housing 7. With drive unit rotating, summary driven torque is formed from its hydraulic and inertia components. Formulas for calculating the torque are given in description of invention.

EFFECT: improved efficiency of hydraulic - inertia converter, its control system, gearbox of converter and method of torque conversion.

24 cl, 1 tbl, 10 dwg

FIELD: transport engineering; vehicle transmissions.

SUBSTANCE: proposed gearbox contains input shaft 2 and output shaft 4 arranged in parallel. Four gears 9, 11, 12, 19 are united to form cluster by shaft 3. Gears 16-18 of output shaft 4 are in pair meshing with gears 9-12 of cluster. Gear 19 of cluster engages with gear 22 of output shaft through idler gear or cluster of two reverse gears 21-21. Two shifter sleeves 32, 33 are installed on hubs of output shaft 4. Input shaft 2 is arranged coaxially to four gear cluster shaft. One of gears 6 of input shaft is fixed, and gears 7, 8 are freely fitted. Said three gears are in pair meshing with gears 13-15 freely fitted on output shaft 4. Three two-position twin shifter sleeves A, B, C are installed between four pairs of gears being arranged on gears of parallel shafts. One member is installed on rim of gear of input shaft 2, other member is installed opposite to first member on rim of gear of output shaft 4. Members are intercoupled by three shifter forks 25, 28, 31. Invention provides up to 24 forwards speeds and up to 8 reverse speeds.

EFFECT: enlarged operating capabilities of vehicle.

1 tbl, 2 dwg

FIELD: transport engineering; vehicle transmissions.

SUBSTANCE: proposed gearbox has housing 1, input shaft 2 and output shaft 5 arranged parallel to each other, four gears 9, 11, 12, 17 united into cluster by shaft 3 arranged coaxially with input shaft 2, tubular shaft 20 with gears 12 and 13 freely fitted on output shaft 5 and gears 14, 15, 19 in meshing with cluster gears. Three-position sleeve A installed on input shaft 2 between first and second rows of gears. Three-position shifter sleeves C, D are installed on hubs of out[put shaft 5 between pairs of low gears and row of reverse gears. Gear 8 is freely fitted on input shaft 2 between hub of three-position shifter sleeve A and shaft 3 of gear cluster, said gear being in meshing with gear 13 of tubular shaft 20. Gear 14 which is in meshing with cluster gear 9 is freely fitted near gear 13 on outer shaft 5. Two position twin shifter sleeve B is arranged between second and third rows of gears. Said shifter sleeve consists of two-position members 22 and 23. Member 22 is installed on rim of gear 8 of input shaft 2. Member 23 is installed opposite to first member on rim of gear 14 of output shaft 5. Members are intercoupled by shifter fork 24. Invention provides up to 12 forwards speeds and up to reverse speeds.

EFFECT: enlarged operating capabilities of vehicle owing to increased number of forward and reverse speeds.

1 tbl, 2 dwg

FIELD: transport engineering; vehicle transmissions.

SUBSTANCE: proposed gearbox has housing 1, drive shaft 2, main shaft 3 and countershaft 4. Drive shaft 2 and main shaft 3 are installed coaxially. Countershaft 4 is arranged in parallel with shafts 2 and 3. Gears 9-12 of countershaft 4 are engaged in pairs with gears 15-18 freely fitted on main shaft 3. Low-speed gears 10-12 and reverse gear 19 are secured on countershaft 4. Reverse idler gear 20 s arranged on axle 5 between countershaft 4 and main shaft 3. Tubular shaft 13 with gears 7 and 8 is installed on countershaft 4. Gears 7 and are in meshing with gears 6, 14 freely fitted on drive shaft 2 and main shaft 3. Hub of three position shifter sleeve A is secured on drive shaft 2. Three-position shifter sleeves D, E are arranged on hubs main shaft 3 at gearbox outlet between row of reverse gears and three pairs of low-speed gears. Two two-position twin shifter sleeves B and C, each consisting of two-position members, are placed between second, third and fourth rows of gears. Said members are fitted on gears of adjacent rows of parallel shafts and are interconnected by shifter forks 27, 30. Invention provides up to 24 forwards speeds and up to 8 reverse speeds.

EFFECT: enlarged operating capabilities of vehicle owing to increased number of forwards and reverse speeds.

1 tbl, 2 dwg

FIELD: mechanical engineering.

SUBSTANCE: planet mechanism comprises solar pinion (43), carrier (41) with satellites (42), gear wheel (39) with synchronizers (54) and (55), and ring spring pusher (61) of the synchronizer that cooperates with teeth (48) of wheel (39). Pusher (61) is interposed between satellites (42) and synchronizer (54). Teeth (48) of wheel (39) in the zone of cooperation with pusher (61) are provided with transverse grooves (62-64).

EFFECT: reduced axial size.

6 cl, 10 dwg

FIELD: transport engineering.

SUBSTANCE: proposed multi-speed gearbox has housing 1, input shaft 2 and output shaft 4 arranged in parallel. Gear 6 is fixed, and gears 7 and 8 are installed for sliding on input shaft 2. gears 9, 11, 12, 19 are combined into cluster by shaft 3. Gears 6-12 are engaging in pairs with gears 13-18 freely fitted on output shaft 4. Three two-position twin shifter sleeves A, B and C are installed between four pairs of gears 6-13, 7-14, 8-15 and 9-16. Each shifter sleeve consists of two-position members located on gears of adjacent rows of parallel shafts intercoupled by shifter for. Member 23 is installed on rim of hear 7 of input shaft 2, and member 24 is installed opposite to first member on rim of gear 13 of output shaft 4. Two shifter sleeves D and C are installed on hubs of output shaft 4 between two pairs of low gears and reverse gear.

EFFECT: enlarged operating capabilities of vehicle owing to increased number of speeds.

1 tbl, 2 dwg

Gear box // 2267675

FIELD: mechanical engineering.

SUBSTANCE: gear box comprises housing (1), shafts (16), (17), (18), and (19) with pinions, and three-sprocket planet mechanism (37) provided with a device for its locking. Crown wheel (39) of the planet mechanism is connected with the reaction gearing member (38) mounted on the inner surface of back outer wall (10) of the housing.

EFFECT: reduced sizes.

5 cl, 4 dwg

Up!