CN204327878U - A kind of 16 grades of high pulling torque speed changers - Google Patents
A kind of 16 grades of high pulling torque speed changers Download PDFInfo
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- CN204327878U CN204327878U CN201420666428.5U CN201420666428U CN204327878U CN 204327878 U CN204327878 U CN 204327878U CN 201420666428 U CN201420666428 U CN 201420666428U CN 204327878 U CN204327878 U CN 204327878U
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Abstract
The utility model discloses a kind of 16 grades of high pulling torque speed changers, object is to improve transmission torque, improve bearing capacity, the technological scheme adopted is: comprise case of transmission, and odd-side, main tank and odd-side before connecting successively in housing, front odd-side comprises an axle, an axle differential gear, front auxiliary box synchronizer and a shaftgear, one axle differential gear is arranged on an axle, and front auxiliary box synchronizer connects an axle; Main tank comprises two axles be connected with an axle, and a shaftgear of front odd-side is arranged on two axles, two axles is arranged each shifting gear biparous, and forward gear sliding sleeve and to reverse gear sliding sleeve, and the both sides of two axles are provided with two jack shafts; Odd-side comprises odd-side actuation gear, odd-side main shaft, odd-side main shaft is provided with reduction gear and auxiliary box synchronizer, and odd-side main shaft both sides are provided with odd-side jack shaft, and the bonnet of housing is provided with auxiliary box cylinder, and odd-side main shaft is by flange plate outputting power; Auxiliary box cylinder is connected air-operated control device with front auxiliary box cylinder.
Description
Technical field
The utility model relates to a kind of speed changer, is specifically related to a kind of 16 grades of high pulling torque speed changers.
Background technique
Along with the development of engine technology, highlight gradually the demand of high pulling torque speed changer, have the speed changer of 3010Nm at present abroad, domestic rarely have the speed changer reaching 2800Nm.For 16 gear gearboxes, rest on 2000-2600Nm, design a 16 grades of high pulling torques, bearing capacity is high, the speed changer that reliability is high more, meets the market demand grown to even greater heights and seems especially important.
Summary of the invention
In order to solve the problems of the prior art, the utility model provides 16 grades of high pulling torque speed changers that a kind of high pulling torque, bearing capacity are high, reliability is high.
In order to realize above object, the technological scheme that the utility model adopts is: comprise case of transmission, and odd-side, main tank and odd-side before connecting successively in housing, front odd-side comprises an axle, an axle differential gear, front auxiliary box synchronizer and a shaftgear, one axle differential gear and front auxiliary box synchronizer are arranged on an axle, and front auxiliary box synchronizer drives shifting-fork gear-shifting by being embedded in auxiliary box cylinder before in transmission upper cover;
Main tank comprises two axles be connected with an axle, one shaftgear of front odd-side is arranged on two axles, two axles are arranged each shifting gear biparous, and forward gears sliding sleeve and to reverse gear sliding sleeve, two axles by bearings on case of transmission, the axial both sides of two axles are provided with two jack shafts, and jack shaft is supported on case of transmission, the gears meshing that the gear on jack shaft is corresponding with on an axle and two axles respectively;
Odd-side comprises odd-side actuation gear and odd-side main shaft, odd-side main shaft is provided with reduction gear and auxiliary box synchronizer, the axial both sides of odd-side main shaft are provided with odd-side jack shaft, gears meshing on gear on odd-side jack shaft and odd-side main shaft, odd-side ratio wheel floats on odd-side main shaft, and supported by the axle tooth of odd-side jack shaft, the bonnet of housing is provided with auxiliary box cylinder, auxiliary box synchronizer drives odd-side shifting-fork gear-shifting by the declutch shift shaft be arranged in auxiliary box cylinder, and odd-side main shaft is by flange plate outputting power;
Described auxiliary box cylinder is connected air-operated control device with front auxiliary box cylinder, and auxiliary box cylinder is dual-gripper cylinder, declutch shift shaft offers self-locking groove, has hole, self-locking spring is housed and is pressed on declutch shift shaft by self-locking steel ball in secondary support place of cylinder block.
The bottom surface of described auxiliary box cylinder is lower than its attachment face on bonnet, and suction port place arranges transition pore.
Gear in described odd-side is helical gear, and can make odd-side jack shaft two ends stress balance, odd-side jack shaft two ends roller bearing supports.
The described each shifting gear empty set of two axles is on two axles, and two shaft rear ends are supported on case of transmission by four-point contact ball, and front end is by being connected with an axle without outer ring roller bearing.
Two described jack shafts are 180 ° of axial both sides being arranged in two axles, the plane of two jack shaft compositions and the angled setting of horizontal plane.
Two described axles are hollow structure, and it longitudinally offers the oilhole improving lubrication, and an axle spindle nose is provided with without outer ring roller bearing, and extend in the bearing hole of two axles.
Described jack shaft is provided with oil pump actuation gear, the partition wall of case of transmission is provided with cooling oil pump.
Described reverse gear and reverse gear sliding sleeve be set to circular arc in conjunction with increment face.
Servo valve is provided with above described front auxiliary box cylinder, the air inlet tracheae of servo valve receives boosting cylinder for clutch place, ventilate after clutch is thoroughly separated, the control tracheae of servo valve connects preselector valve, preselector valve is arranged on operator cabin, preselector valve is provided with preselector valve switch, the control gas circuit of servo valve can be controlled.。
Described air-operated control device is provided with shifting block and gas path control valve, and the suction tude of gas path control valve connects air-strainer, and the other two-way of gas path control valve connects the high-grade tracheae of auxiliary box cylinder and low-grade tracheae respectively.
Compared with prior art, speed changer of the present utility model is made up of front odd-side, main tank and rear odd-side, and the shift sleeve structure of main tank can effectively reduce the rotary inertia of auxiliary box synchronizer, promotes gearshift performance and reliability.High pulling torque secondary box of gearbox needs dual-gripper cylinder to obtain excellent gearshift performance, but dual-gripper cylinder cannot install traditional self-locking mechanism, and need lasting air feed just can prevent from losing rank, the utility model arranges self-locking mechanism, can effectively prevent from losing rank.
Further, the mounting point of whole cylinder in gearbox sinks, and devises new air inlet gas circuit, cylinder entirety cantilever is reduced, and increases rigidity.
Further, odd-side has synchronizer, and gear adopts helical teeth, and make transmission more steady, noise is little, and carrying is large.
Further, improve an axle assembly, shortened by an axle, be arranged on by a shaftgear on two axles, an axle spindle nose band bearing, is supported in the bearing hole of two axles, solves an axle and two axle supports place are recessed, causes the problem of engage a gear difficulty.Two axle hollows, can increase centre hardness after heat treatment, the integral rigidity of lift shaft.Longitudinally have oilhole simultaneously, improve lubrication.
Further, jack shaft is equipped with oil pump actuation gear, and housing partition wall is provided with cooling oil pump, improves high pulling torque speed changer heat dissipation problem.
Further reverse gear sliding sleeve is designed to arc surface with reverse gear in conjunction with tooth place, improves reverse gear engage a gear performance.
Further, the design adopts two H gas circuit, and gear is clear, and major-minor case gearshift logic is simple, and front odd-side adopts simple servo valve, simplifies gas circuit, reduces rate of fault.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is manipulation pneumatic diagram of the present utility model;
Fig. 3 is operator cabin preselector valve structural drawing;
Fig. 4 is cab bar key plan;
Wherein, 1-differential gear, 2-is without outer ring roller bearing, 3-upper cover, 4-mono-shaftgear, 5-bis-axle, 6-forward gears sliding sleeve, 7-reverse gear sliding sleeve, 8-reverse gear, 9-cylinder self-locking spring, 10-cylinder self-locking steel ball, 11-cylinder block, 12-odd-side declutch shift shaft, 13-cylinder gas circuit via hole, 14-bonnet, 15-mono-axle, the left roller bearing of 16-, auxiliary box synchronizer before 17-, the right roller bearing of 18-, 19-jack shaft, 20-oil pump actuation gear, 21-odd-side actuation gear, 22-auxiliary box synchronizer, 23-reduction gear, the low-grade tracheae of 24-, 25-shifting block, 26-gas path control valve, 27-preselector valve, 28-preselector valve switch, 29-servo valve, 30-air-strainer, the high-grade tracheae of 31-, 32-suction tude, 33-odd-side jack shaft, 34-odd-side main shaft.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.
See Fig. 1, the utility model comprises case of transmission, and odd-side, main tank and odd-side before connecting successively in housing, front odd-side comprises axle 15, axle differential gear 1, front auxiliary box synchronizer 17 and a shaftgear 4, one axle differential gear 1 and front auxiliary box synchronizer 17 are arranged on an axle 15, and front auxiliary box synchronizer 17 drives shifting-fork gear-shifting by being embedded in auxiliary box cylinder before in transmission upper cover 3;
Main tank comprises two axles 5 be connected with an axle 15, two axles 5 are hollow structure, it longitudinally offers the oilhole improving lubrication, one axle 15 spindle nose is provided with without outer ring roller bearing 2, and extend in the bearing hole of two axles 5, one shaftgear 4 of front odd-side is arranged on two axles 5, two axles 5 arrange each shifting gear biparous, the each shifting gear empty set of two axles is on two axles 5, and forward gears sliding sleeve 6 and the sliding sleeve 7 that reverses gear, reverse gear 8 and reverse gear sliding sleeve 7 be set to circular arc in conjunction with increment face, two axles 5 support by four-point contact ball and without outer ring roller bearing 2, the axial both sides of two axles 5 are provided with two jack shafts 19, two jack shafts 19 are arranged in the axial both sides of two axles 5 in 180 °, the plane of two jack shaft 19 compositions and the angled setting of horizontal plane, jack shaft 19 is supported on case of transmission, the gears meshing that gear on jack shaft 19 is corresponding with on an axle 15 and two axles 5 respectively, jack shaft 19 is provided with oil pump actuation gear 20, the partition wall of housing is provided with cooling oil pump.
Odd-side comprises odd-side actuation gear 21 and odd-side main shaft 34, odd-side main shaft 34 is provided with reduction gear 23 and auxiliary box synchronizer 22, the axial both sides of odd-side main shaft 34 are provided with odd-side jack shaft 33, gears meshing on gear on odd-side jack shaft 33 and odd-side main shaft 34, odd-side reduction gear 23 is floated on odd-side main shaft 34, and supported by the axle tooth of odd-side jack shaft 33, the bonnet 14 of housing is provided with auxiliary box cylinder 11, auxiliary box synchronizer 22 drives odd-side shifting-fork gear-shifting by the declutch shift shaft 12 be arranged in auxiliary box cylinder 11, odd-side main shaft 34 is by flange plate outputting power, gear in odd-side is helical gear, and can make odd-side jack shaft 33 two ends stress balance, odd-side jack shaft 33 two ends roller bearing supports.
Auxiliary box cylinder 11 is connected air-operated control device with front auxiliary box cylinder, and auxiliary box cylinder 11 is dual-gripper cylinder, declutch shift shaft 12 offers self-locking groove, and have hole in secondary support place of cylinder block, self-locking spring 9 is housed to be pressed on declutch shift shaft 12 by self-locking steel ball 10; The bottom surface of auxiliary box cylinder 11 is lower than its attachment face on bonnet 14, and suction port place arranges transition pore 13.
See Fig. 2 and Fig. 3, be provided with servo valve 29 above front auxiliary box cylinder, the air inlet tracheae of servo valve receives boosting cylinder for clutch place, ventilates after clutch is thoroughly separated; The control tracheae of servo valve 29 connects the P mouth of preselector valve, and preselector valve 27 is arranged on operator cabin, is provided with preselector valve switch 28, controls the control gas circuit of servo valve 29.Effector is provided with shifting block 25, and gas path control valve 26, suction tude 32 connects air-strainer 30, and two-way connects high-grade tracheae 31 and the low-grade tracheae 24 of auxiliary box cylinder respectively in addition.
The utility model is 16 grades of two jack shaft 2*4*2 structure speed changers, and wherein, odd-side comprises axle 15, axle differential gear 1, front auxiliary box synchronizer 17 and shaftgear 4, shaftgear 4 and is contained on two axles 5.Front auxiliary box synchronizer 17 drives shifting-fork gear-shifting by the cylinder be embedded in transmission upper cover 3.One axle 15 right-hand member band, with or without outer ring roller bearing 2, is deep in the bearing hole of two axles 5.Two axles are provided with forward gears sliding sleeve 6, reverse gear sliding sleeve 7 and each shifting gear of two axles.Forward gears sliding sleeve 6 and the sliding sleeve 7 that reverses gear are contained on two axles 5 by spline, and each shifting gear empty set of two axles 5 is on two axles 5.Wherein reverse gear 8 and reverse gear sliding sleeve 7 are circular arc in conjunction with increment face.Two axle 5 assemblies are by the four-point contact ball on the right, and the supporting without outer ring roller bearing 2 of an axle spindle nose.Upper part of gear box is operating mechanism, drives the shift fork on each sliding sleeve to shift gears.Two jack shaft 19 assemblies 180 ° are arranged in two axle 5 assembly both sides, and angled with horizontal plane.Jack shaft cogs and engages with corresponding gear on an axle 15 and two axles 5 respectively.Countershaft assembly 19 is supported on case of transmission by left roller bearing 16 and right roller bearing 18.Two axle 5 right-hand members pass through spline joint odd-side actuation gear 21 by transmission of power to odd-side.Odd-side is made up of odd-side actuation gear 21, auxiliary box synchronizer 22, reduction gear 23, odd-side main shaft 34 and odd-side jack shaft 33 assembly.The whole gear of odd-side is helical teeth, and by adjustment gear parameter, make odd-side jack shaft 33 two ends stress balance, therefore odd-side jack shaft 33 two ends can replace cone bearing to support with roller bearing, easy for installation.Auxiliary box synchronizer 22 drives odd-side shifting-fork gear-shifting by auxiliary box cylinder declutch shift shaft 12.Auxiliary box cylinder 11 is dual-gripper cylinder, declutch shift shaft 12 has self-locking groove, has hole, self-locking spring 9 is housed and is pressed on declutch shift shaft 12 by self-locking steel ball 10 in secondary support place of cylinder block.This self-locking structure is simple, reliable, attractive in appearance.Cylinder block 11 bottom surface is lower than its attachment face on bonnet 14, and suction port increases transition pore 13.This design reduces the length of cylinder cantilever support, improve cylinder rigidity, increase part life and improve auxiliary box synchronizer 22 simultaneously and to shift gears performance.Odd-side reduction gear 23 is floated on odd-side main shaft 34, relies on the odd-side jack shaft 33 axle tooth on both sides to support.
Handle gas circuit as shown in Figure 2, as shown in Figure 3, be provided with servo valve 29 above auxiliary box cylinder before upper cover 3 place, air inlet tracheae receives boosting cylinder for clutch place to preselector valve structure, ventilates after clutch is thoroughly separated.Control the P hole that gas circuit tracheae connects preselector valve 27, it is exhaust port that the air inlet S hole of preselector valve 27 connects air-strainer 30, E hole.Preselector valve 27 there is control switch 28, by upper and lower toggle switch, control the direction of servo valve 29 gas circuit, thus auxiliary box synchronizer 17 engage a gear before handling.Effector is equipped with gas path control valve 26, the suction tude 32 of gas path control valve 26 connects air-strainer 30, and two-way connects high-grade tracheae 31 and the low-grade tracheae 24 of auxiliary box cylinder respectively in addition.
The power of motor is passed to speed changer one axle 15 by clutch, is passed to front auxiliary box synchronizer 17 by spline.Stir the control switch 28 on preselector valve 27 downwards, gas circuit enters servo valve 29 and controls servo valve spool and make pore ventilation of its left side from S aperture P hole, promote piston, handle synchronizer and be linked into a shaftgear 4 to the right, after now main tank is linked into gear, gearbox is pressed odd number shelves and is exported.If upwards stir control switch 28, preselector valve gas circuit enters E hole from S hole, and servo valve 29 controls gas circuit without air inlet, spool is return under the action of the spring, and the right pore is ventilated, and handles shift fork and makes synchronizer 17 be linked into differential gear 1 left, after then main tank is linked into gear, gearbox is pressed even number shelves and is exported.Rear auxiliary box synchronizer 22 controls high and low shift.Speed changer is in Low gear state, and auxiliary box synchronizer engages with ratio wheel in conjunction with tooth.See Fig. 4, when making shifting block 25 move to 9,10 grades of neutral gear positions skies 2 from 5,6 grades of neutral gear position skies 1 by pulling preselector valve bulb 27, shifting block 25 touches the contact of gas path control valve 26, high-grade tracheae 31 is ventilated, cylinder promotes shift fork makes auxiliary box synchronizer 22 move to the diagram left side, auxiliary box synchronizer engages with odd-side driving wheel 21 in conjunction with tooth, speed changer shift to a higher gear.Pulling preselector valve 27 bulb during drag-down makes shifting block first get back to empty 2 positions, and then move to empty 1 position, unclamp gas path control valve 26 contact, low-grade gas circuit 24 is ventilated, and cylinder piston moves to right, speed changer drag-down.Odd-side ability engage a gear during this maneuverability pattern guarantee main tank neutral, avoid because main tank is on gear, auxiliary box synchronizer carries out high and low shift and switches the synchronizer abnormal damage brought.
Claims (10)
1. 16 grades of high pulling torque speed changers, it is characterized in that: comprise case of transmission, and odd-side, main tank and odd-side before connecting successively in housing, front odd-side comprises an axle (15), an axle differential gear (1), front auxiliary box synchronizer (17) and a shaftgear (4), one axle differential gear (1) and front auxiliary box synchronizer (17) are arranged on an axle (15), and front auxiliary box synchronizer (17) drives shifting-fork gear-shifting by the front auxiliary box cylinder be embedded in transmission upper cover (3);
Main tank comprises two axles (5) be connected with an axle (15), one shaftgear (4) of front odd-side is arranged on two axles (5), two axles (5) arrange each shifting gear biparous, and forward gears sliding sleeve (6) and the sliding sleeve that reverses gear (7) that is connected with reverse gear (8), two axles (5) by bearings on case of transmission, the axial both sides of two axles (5) are provided with two jack shafts (19), jack shaft (19) is supported on case of transmission, the gears meshing that gear on jack shaft (19) is corresponding with on an axle (15) and two axles (5) respectively,
Odd-side comprises odd-side actuation gear (21) and odd-side main shaft (34), odd-side main shaft (34) is provided with reduction gear (23) and auxiliary box synchronizer (22), the axial both sides of odd-side main shaft (34) are provided with odd-side jack shaft (33), gears meshing on gear on odd-side jack shaft (33) and odd-side main shaft (34), odd-side reduction gear (23) is floated on odd-side main shaft (34), and supported by the axle tooth of odd-side jack shaft (33), the bonnet (14) of housing is provided with auxiliary box cylinder (11), auxiliary box synchronizer (22) drives odd-side shifting-fork gear-shifting by the declutch shift shaft (12) be arranged in auxiliary box cylinder (11), odd-side main shaft (34) is by flange plate outputting power,
Described auxiliary box cylinder (11) is connected air-operated control device with front auxiliary box cylinder, auxiliary box cylinder (11) is dual-gripper cylinder, (12) offer self-locking groove to declutch shift shaft, have hole in secondary support place of cylinder block, self-locking spring (9) is housed self-locking steel ball (10) is pressed on declutch shift shaft (12).
2. a kind of 16 grades of high pulling torque speed changers according to claim 1, is characterized in that: the bottom surface of described auxiliary box cylinder (11) is lower than its attachment face on bonnet (14), and suction port place arranges transition pore (13).
3. a kind of 16 grades of high pulling torque speed changers according to claim 1, it is characterized in that: the gear in described odd-side is helical gear, and odd-side jack shaft (33) two ends stress balance can be made, odd-side jack shaft (33) two ends roller bearing supports.
4. a kind of 16 grades of high pulling torque speed changers according to claim 1, it is characterized in that: the described each shifting gear empty set of two axles is on two axles (5), the rear end of two axles (5) is supported on case of transmission by four-point contact ball, and front end is by being connected with an axle (15) without outer ring roller bearing (2).
5. a kind of 16 grades of high pulling torque speed changers according to claim 4, it is characterized in that: two described jack shafts (19) are arranged in two axles (5) both sides in 180 °, the plane that two jack shafts (19) form and the angled setting of horizontal plane.
6. a kind of 16 grades of high pulling torque speed changers according to claim 5, it is characterized in that: described two axles (5) are hollow structure, it longitudinally offers the oilhole improving lubrication, one axle (15) spindle nose is provided with without outer ring roller bearing (2), and extend in the bearing hole of two axles (5).
7. a kind of 16 grades of high pulling torque speed changers according to claim 1, is characterized in that: described jack shaft (19) is provided with oil pump actuation gear (20), the partition wall of case of transmission is provided with cooling oil pump.
8. a kind of 16 grades of high pulling torque speed changers according to claim 1, is characterized in that: described reverse gear (8) and reverse gear sliding sleeve (7) be set to circular arc in conjunction with increment face.
9. a kind of 16 grades of high pulling torque speed changers according to claim 1, it is characterized in that: above described front auxiliary box cylinder, be provided with servo valve (29), the air inlet tracheae of servo valve (29) receives boosting cylinder for clutch place, ventilate after clutch is thoroughly separated, the control tracheae of servo valve (29) connects preselector valve (27), preselector valve (27) is arranged on operator cabin, preselector valve (27) is provided with preselector valve switch (28), the control gas circuit of servo valve (29) can be controlled.
10. a kind of 16 grades of high pulling torque speed changers according to claim 1, it is characterized in that: described air-operated control device is provided with shifting block (25) and gas path control valve (26), the suction tude (32) of gas path control valve (26) connects air-strainer (30), and the other two-way of gas path control valve (26) connects high-grade tracheae (31) and the low-grade tracheae (24) of auxiliary box cylinder respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666428.5U CN204327878U (en) | 2014-11-10 | 2014-11-10 | A kind of 16 grades of high pulling torque speed changers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666428.5U CN204327878U (en) | 2014-11-10 | 2014-11-10 | A kind of 16 grades of high pulling torque speed changers |
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| CN204327878U true CN204327878U (en) | 2015-05-13 |
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| CN201420666428.5U Active CN204327878U (en) | 2014-11-10 | 2014-11-10 | A kind of 16 grades of high pulling torque speed changers |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641195A (en) * | 2017-01-23 | 2017-05-10 | 中国第汽车股份有限公司 | Heavy 12-gear AMT transmission assembly |
| CN109058398A (en) * | 2018-09-28 | 2018-12-21 | 陕西法士特齿轮有限责任公司 | A kind of 11 gear gearbox of commercial vehicle |
| CN109282031A (en) * | 2018-10-31 | 2019-01-29 | 西安法士特汽车传动有限公司 | A kind of mutual blocking valve of vehicular transmission major-minor case, interlock system and interlock method |
-
2014
- 2014-11-10 CN CN201420666428.5U patent/CN204327878U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641195A (en) * | 2017-01-23 | 2017-05-10 | 中国第汽车股份有限公司 | Heavy 12-gear AMT transmission assembly |
| CN109058398A (en) * | 2018-09-28 | 2018-12-21 | 陕西法士特齿轮有限责任公司 | A kind of 11 gear gearbox of commercial vehicle |
| CN109058398B (en) * | 2018-09-28 | 2024-01-02 | 陕西法士特齿轮有限责任公司 | Eleven-gear transmission of commercial vehicle |
| CN109282031A (en) * | 2018-10-31 | 2019-01-29 | 西安法士特汽车传动有限公司 | A kind of mutual blocking valve of vehicular transmission major-minor case, interlock system and interlock method |
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