CN114738446A - Thirteen-gear transmission for dump truck - Google Patents
Thirteen-gear transmission for dump truck Download PDFInfo
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- CN114738446A CN114738446A CN202210389952.1A CN202210389952A CN114738446A CN 114738446 A CN114738446 A CN 114738446A CN 202210389952 A CN202210389952 A CN 202210389952A CN 114738446 A CN114738446 A CN 114738446A
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- main shaft
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000009194 climbing Effects 0.000 claims description 31
- 230000008901 benefit Effects 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
- F16H37/046—Combinations of toothed gearings only change gear transmissions in group arrangement with an additional planetary gear train, e.g. creep gear, overdrive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0078—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratio comprising twelve or more forward speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a thirteen-gear transmission for a dump truck, which comprises a main box and an auxiliary box, wherein the main box comprises an input shaft, a main shaft, two sets of intermediate shafts, a front shell, a middle shell and a small cover assembly, the input shaft is arranged in a hole of the front shell, and the tail end of the input shaft is provided with an input shaft transmission gear; the front end of the main shaft is arranged in a hole at the rear end of the input shaft, the main shaft is sequentially provided with a sliding sleeve and a gear, and the main box realizes power transmission with different speed ratios through the sliding sleeve; the intermediate shaft is of a double-gear structure with the same gear parameters and is arranged on the front shell and the middle shell, and an intermediate shaft transmission gear and a gear are sequentially arranged on the intermediate shaft; the intermediate shaft transmission gear is meshed with the input shaft transmission gear; the auxiliary box is provided with a planetary gear train mechanism, and high-gear and low-gear switching and power transmission of the auxiliary box are realized through an auxiliary box synchronizer; the middle shell is connected with the front shell, and a small cover assembly is arranged on the middle shell to realize the functions of gear selection and gear shifting of the transmission. The invention has the advantages of simple structure, easy maintenance, high reliability and large bearing capacity, prolongs the service life of the transmission and improves the fuel economy.
Description
Technical Field
The invention relates to a thirteen-gear transmission for a dumper, and belongs to the technical field of heavy truck transmissions.
Background
Driven by policies of environmental protection, energy conservation and emission reduction, the requirements of reducing the oil consumption and emission of the whole automobile are always important directions for the development of the automobile industry. The dump truck is one of the subdivided vehicle types of the heavy truck, still is an important component of the heavy truck market, the requirements of users on the power performance, the economy, the comfort and the like of the whole vehicle are continuously improved, the fuel economy requirement of a power assembly of the whole vehicle is higher and higher, how to enable the whole vehicle to run, the fact that an engine always works in an economic rotating speed region is particularly important, the requirements on heavy-load starting, running and lowest stable vehicle speed are met, and different working conditions such as no-load high vehicle speed and the like are met, the traditional 12-gear direct-shift transmission does not have a speed ratio smaller than 1, the head gear speed ratio of an overdrive transmission is smaller than 14 or even smaller, the speed ratio range is narrow, and the working condition requirement of the whole vehicle and the fuel economy of the power assembly are limited.
Disclosure of Invention
The invention aims to solve the technical problem of providing a 13-gear transmission for a dump truck, aiming at the defects in the prior art.
In order to solve the technical problem, the invention provides a thirteen-gear transmission for a dumper, which comprises a main box and an auxiliary box, wherein the main box comprises an input shaft, a main shaft, two sets of intermediate shafts, a front shell, a middle shell and a small cover assembly, the input shaft is arranged in a hole of the front shell through a deep groove ball bearing, the tail end of the input shaft is provided with an input shaft transmission gear connected through a spline, and a bushing is arranged in a hole at the rear end of the input shaft; the front end of the main shaft is arranged in a hole at the rear end of the input shaft, a five-six-gear sliding sleeve, a main shaft overspeed gear, a main shaft four-gear, a three-four-gear sliding sleeve, a main shaft three-gear, a main shaft two-gear, a two-gear sliding sleeve, a main shaft one-gear, a main shaft climbing gear, a reverse climbing sliding sleeve and a main shaft reverse gear are sequentially arranged on the main shaft, the main box is free of a synchronizer, and power transmission of different speed ratios of the main box is realized through the sliding sleeve on the main shaft; the middle shaft is of a duplex gear structure with the same gear parameters and is arranged on the front shell and the middle shell through cylindrical roller bearings, and a middle shaft transmission gear, a middle shaft overdrive gear, a middle shaft four-gear, a middle shaft three-gear, a middle shaft two-gear, a middle shaft one-gear, a middle shaft climbing gear and a middle shaft reverse gear which are integrated with the middle shaft and have the same gear parameters are sequentially arranged on the middle shaft; the intermediate shaft transmission gear is meshed with the input shaft transmission gear to transmit power to the intermediate shaft from the input shaft; the auxiliary box is provided with a planetary gear train mechanism, the planetary gear train mechanism is provided with an auxiliary box synchronizer, and the high-gear and low-gear switching and power transmission of the auxiliary box are realized through the auxiliary box synchronizer; the middle shell is connected with the front shell through bolts, and a small cover assembly is arranged on the middle shell, so that the functions of gear selection and gear shifting of the transmission are realized.
The middle shaft transmission gear, the middle shaft overspeed gear, the middle shaft four-gear, the middle shaft three-gear and the middle shaft two-gear are positioned on the middle shaft through long flat keys, and an inner hole of the middle shaft one-gear is in large interference fit with the middle shaft and is positioned on the middle shaft through a cylindrical pin.
The front end of the intermediate shaft is provided with an oil pump which lubricates a needle bearing in the idler through the inner box pipe.
A five-six-gear sliding sleeve of the main box is meshed with a main shaft overspeed gear to form a six-gear or a twelve-gear; the fifth-sixth gear sliding sleeve is meshed with the transmission gear of the input shaft to form a fifth gear or an eleventh gear; the three-fourth gear sliding sleeve is meshed with the four-gear of the main shaft to form a fourth gear or a tenth gear; the three-fourth gear sliding sleeve is meshed with the main shaft three-gear to form a third gear or a ninth gear; the first-gear sliding sleeve and the second-gear sliding sleeve are meshed with the main shaft gear to form a first gear or a second gear; the first-gear sliding sleeve and the second-gear sliding sleeve are meshed with the first-gear of the main shaft to form a first gear or a seventh gear; the reverse climbing sliding sleeve is meshed with the main shaft climbing gear to form climbing, and the reverse climbing sliding sleeve is meshed with the main shaft reverse gear to form reverse gear.
The gear climbing speed ratio 16.274, the twelve speed ratio 0.787, the average value of the speed ratio difference of each forward gear is 1.287.
The small cover assembly is provided with a double H valve and an air control locking valve, an air inlet of the double H valve is connected with an air source of the whole vehicle, an air outlet of the double H valve is connected with a low-gear air inlet pipe of the auxiliary box, an air outlet of the double H valve is connected with a high-gear air inlet of the auxiliary box, and an air inlet of the air control locking valve is connected with a handle switch and is used for controlling the air outlet of the double H valve I and the air outlet of the double H valve II to realize high-gear and low-gear switching of the auxiliary box; and a gear locking cylinder device is arranged on the small cover assembly, an air inlet of the gear locking cylinder is connected with a high gear pipe of the auxiliary box, and when the auxiliary box is positioned in a high gear area, reverse gear and climbing gear of the high gear area are locked.
Has the advantages that: the invention adopts the combined design of the main box and the auxiliary box, the main box adopts a double-intermediate shaft structure, the straight gear transmission and the sliding sleeve gear shifting are adopted, the structure is simple, the maintenance is easy, and the reliability is high; the auxiliary box adopts a planetary gear train mechanism, has large bearing capacity, adopts an oil pump for forced lubrication, and prolongs the service life of the transmission. The thirteen-gear transmission has an overdrive, the speed ratio of the first gear reaches 16.274, the advantages of a direct-gear transmission and the overdrive are taken into consideration, the defects of the highest speed of the direct-gear transmission and the starting of the overdrive are overcome, the ratio of the engine working in an economic rotating speed area is improved due to the advantage that the speed ratio range reaches 20.68, and the fuel economy is greatly improved. A reverse gear and climbing gear locking cylinder device is additionally arranged on a small cover of the thirteen-gear transmission, and a reverse gear and climbing gear of a high gear area are locked, so that the driving operation clearness and the comfort of a driver are improved. The main box intermediate shaft of the thirteen-gear transmission adopts a duplex gear structure with the same gear parameters, can adopt a high-efficiency hobbing process, and the first gear on the main box intermediate shaft adopts a hot-assembling process, so that the manufacturing difficulty of the thirteen-gear transmission caused by increasing gears is reduced. The main box of the transmission adopts double-intermediate-shaft straight gear transmission, the auxiliary box adopts a planetary gear train mechanism to form a 6 multiplied by 2+1 structure, the speed ratio range reaches 20.68, and the fuel economy and the dynamic property can be considered.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the middle shaft of the present invention;
FIG. 3 is a schematic view of the structure of the small cover assembly of the present invention.
In the figure: i, a main box; II, an auxiliary box; 1. an input shaft; 2. a deep groove ball bearing; 3. a front housing; 4. a bushing; 5. an input shaft transmission gear; 6. a fifth-sixth gear sliding sleeve; 7. a main shaft overdrive gear; 8. a main shaft; 9. A main shaft four-gear; 10. a small lid assembly; 11. a third-gear sliding sleeve and a fourth-gear sliding sleeve; 12. a main shaft three-gear; 13. a main shaft secondary gear; 14. a first and a second gear sliding sleeve; 15. a main shaft first gear; 16. a main shaft gear; 17. A reverse-climbing blocking sliding sleeve; 18. a main shaft reverse gear; 19. a middle shell; 20. a planetary gear train mechanism; 21. a sub-tank synchronizer; 22. an idler pulley; 23. a needle bearing; 24. an in-tank tube; 25. an intermediate shaft; 26. a cylindrical roller bearing; 27. an oil pump; 28. a middle shaft transmission gear; 29. a long flat bond; 30. an intermediate shaft overdrive gear; 31. a countershaft fourth gear; 32. a middle shaft three-gear; 33. a second gear of the intermediate shaft; 34. a cylindrical pin; 35. a middle shaft first gear; 36. a countershaft shifting gear; 37. a counter shaft reverse gear; 38. a pneumatic control locking valve; 39. a double H valve; 40. a shift cylinder device; A. a dual H-valve inlet; B. a first air outlet of the double H valve; C. a second double-H valve air outlet; D. blocking an air inlet of an air cylinder; e. And an air inlet of an air control locking valve.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-3, the invention provides a thirteen-gear transmission for a dump truck, which comprises a main box I and an auxiliary box II, wherein the main box I comprises an input shaft 1, a main shaft 8, two sets of intermediate shafts 25, a front shell 3, a middle shell 19 and a small cover assembly 10, the input shaft 1 is arranged in a hole of the front shell 3 through a deep groove ball bearing 2, the tail end of the input shaft is provided with an input shaft transmission gear 5 connected through a spline, and a lining 4 is arranged in a hole at the rear end of the input shaft 1; the front end of the main shaft 8 is arranged in a hole at the rear end of the input shaft 1, a five-six-gear sliding sleeve 6, a main shaft overspeed gear 7, a main shaft four-gear 9, a three-four-gear sliding sleeve 11, a main shaft three-gear 12, a main shaft two-gear 13, a two-gear sliding sleeve 14, a main shaft one-gear 15, a main shaft climbing gear 16, a reverse climbing sliding sleeve 17 and a main shaft reverse gear 18 are sequentially arranged on the main shaft 8, a synchronizer is not arranged in the main box I, and power transmission of different speed ratios of the main box I is realized through the sliding sleeve on the main shaft 8; the intermediate shaft 25 is of a duplex gear structure with the same gear parameters and is arranged on the front shell 3 and the intermediate shell 19 through a cylindrical roller bearing 26, and the intermediate shaft 25 is sequentially provided with an intermediate shaft transmission gear 28, an intermediate shaft overdrive gear 30, an intermediate shaft four-gear 31, an intermediate shaft three-gear 32, an intermediate shaft two-gear 33, an intermediate shaft first-gear 35, an intermediate shaft climbing gear 36 and an intermediate shaft reverse gear 37 which have the same gear parameters and are integrated with the intermediate shaft 25; the intermediate shaft transmission gear 28 is meshed with the input shaft transmission gear 5, and power is transmitted to the intermediate shaft 25 from the input shaft 1; the auxiliary box II is provided with a planetary gear train mechanism 20, the planetary gear train mechanism 20 is provided with an auxiliary box synchronizer 21, and the high-gear and low-gear switching and power transmission of the auxiliary box II are realized through the auxiliary box synchronizer 21; the middle shell 19 is connected with the front shell 3 through bolts, and the small cover assembly 10 is arranged on the middle shell 19, so that the gear selecting and shifting functions of the transmission are realized.
The intermediate shaft transmission gear 28, the intermediate shaft overdrive gear 30, the intermediate shaft four-gear 31, the intermediate shaft three-gear 32 and the intermediate shaft two-gear 33 are positioned on the intermediate shaft 25 through the long flat key 29, and an inner hole of the intermediate shaft one-gear 35 is in large interference fit with the intermediate shaft 25 and is positioned on the intermediate shaft 25 through the cylindrical pin 34.
The intermediate shaft 25 is provided at its front end with an oil pump 27 for lubricating the needle roller bearing 23 in the idler pulley 22 through the tank inner tube 24.
A five-six gear sliding sleeve 6 of the main box I is meshed with a main shaft overspeed gear 7 to form a six gear or a twelve gear; the five-six gear sliding sleeve 6 is meshed with the input shaft transmission gear 5 to form a fifth gear or an eleventh gear; the three-fourth gear sliding sleeve 11 is meshed with the four-gear 9 of the main shaft to form a fourth gear or a tenth gear; the three-four gear sliding sleeve 11 is meshed with a three-gear 12 of the main shaft to form a third gear or a ninth gear; a second-gear sliding sleeve 14 is meshed with a second-gear 13 of the main shaft to form a second gear or an eighth gear; a second-gear sliding sleeve 14 is meshed with a first-gear 15 of the main shaft to form a first gear or a seventh gear; the reverse climbing sliding sleeve 17 is meshed with the main shaft climbing gear 16 to form climbing, and the reverse climbing sliding sleeve 17 is meshed with the main shaft reverse gear 18 to form reverse gear.
The gear climbing speed ratio is 16.274, the speed ratio of the twelve gears is 0.787, and the average value of the speed ratio difference of each forward gear is 1.287; the transmission gear ratios are shown in the following table.
| Gear position | Climbing block | 1 gear | 2 keeps off | 3 grade | 4-gear | 5 gear | 6-gear |
| Speed ratio | 16.274 | 12.120 | 9.364 | 7.262 | 5.691 | 4.375 | 3.443 |
| Gear position | 7 gear | 8 keep off | 9 gear | 10 gear | 11 grade | 12 gear | Reverse gear |
| Speed ratio | 2.770 | 2.140 | 1.660 | 1.301 | 1.000 | 0.787 | 14.972 |
The small cover assembly 10 is provided with a double H valve 39 and a pneumatic control locking valve 38, a double H valve air inlet A is connected with an air source of the whole vehicle, a double H valve air outlet I B is connected with an auxiliary box low-gear air inlet pipe, a double H valve air outlet II C is connected with an auxiliary box high-gear air inlet, and a pneumatic control locking valve air inlet E is connected with a handle switch and used for controlling the double H valve air outlet I B and controlling the double H valve air outlet II C to give out air so as to realize high-gear and low-gear switching of the auxiliary box II; be equipped with on the tegillum assembly 10 and keep off cylinder device 40, keep off cylinder air inlet D and be connected with II high gas tubes of auxiliary tank, when auxiliary tank II is in the high gear zone time, pin the reverse gear in high gear zone, climb the fender, avoid the driver because of the risk that the maloperation leads to, promote driver's driving operation clarity simultaneously and feel and the travelling comfort.
The invention adopts the combined design of a main box and an auxiliary box, the main box adopts a double-intermediate shaft structure and adopts a straight gear transmission, and the auxiliary box adopts a planetary gear train mechanism; the main box is meshed with four sliding sleeves through a plurality of gears to respectively form seven forward gears and a reverse gear, a planetary gear train mechanism of the auxiliary box realizes two gears, the main box and the auxiliary box jointly form thirteen forward gears of 6 multiplied by 2+1, the main box is at a gear climbing gear, when the auxiliary box is at a low gear position, the first gear speed ratio reaches 16.274, the main box is at a gear five (overdrive) and when the auxiliary box is at a high gear position, the highest gear speed ratio is 0.787, the speed ratio range reaches 20.68, meanwhile, a reverse and climbing gear locking cylinder device is additionally arranged on a small transmission cover, a high gear area is reversed and climbed to be locked, the driving operation clearness and comfortableness of a driver are improved, the requirements of different working conditions of the dump truck are met, and the power performance and the fuel economy of the whole dump truck are improved.
The invention has the advantages of overdrive, the first gear speed ratio reaching 16.274, direct gear transmission and overdrive transmission advantages, solving the defects of the highest speed of the direct gear transmission and the starting of the overdrive transmission, improving the ratio of the engine working in an economic speed area by the advantage that the speed ratio range reaches 20.68 and greatly improving the fuel economy.
The above-described embodiments of the invention are intended to be illustrative only and are not intended to be limiting, as all changes that come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (6)
1. The utility model provides a thirteen keep off derailleur for tipper which characterized in that: the main box (I) comprises an input shaft (1), a main shaft (8), two sets of intermediate shafts (25), a front shell (3), a middle shell (19) and a small cover assembly (10), wherein the input shaft (1) is arranged in a hole of the front shell (3) through a deep groove ball bearing (2), the tail end of the input shaft is provided with an input shaft transmission gear (5) connected through a spline, and a lining (4) is arranged in a hole at the rear end of the input shaft (1); the front end of the main shaft (8) is installed in a hole in the rear end of the input shaft (1), a five-six gear sliding sleeve (6), a main shaft overspeed gear (7), a main shaft four-gear (9), a three-four gear sliding sleeve (11), a main shaft three-gear (12), a main shaft two-gear (13), a two-gear sliding sleeve (14), a main shaft one-gear (15), a main shaft climbing gear (16), a reverse climbing sliding sleeve (17) and a main shaft reverse gear (18) are sequentially arranged on the main shaft (8), a main box (I) is free of a synchronizer, and power transmission of different speed ratios of the main box (I) is realized through the sliding sleeve on the main shaft 8; the intermediate shaft (25) is of a duplex gear structure with the same gear parameters and is arranged on the front shell (3) and the middle shell (19) through a cylindrical roller bearing (26), and an intermediate shaft transmission gear (28), an intermediate shaft overdrive gear (30), an intermediate shaft four-gear (31), an intermediate shaft three-gear (32), an intermediate shaft two-gear (33), an intermediate shaft one-gear (35), an intermediate shaft climbing gear (36) and an intermediate shaft reverse gear (37) which are integrated with the intermediate shaft (25) and have the same gear parameters are sequentially arranged on the intermediate shaft (25); the intermediate shaft transmission gear (28) is meshed with the input shaft transmission gear (5) to transmit power from the input shaft (1) to the intermediate shaft (25); the auxiliary box (II) is provided with a planetary gear train mechanism (20), the planetary gear train mechanism (20) is provided with an auxiliary box synchronizer (21), and the high-gear and low-gear switching and power transmission of the auxiliary box (II) are realized through the auxiliary box synchronizer (21); the middle shell (19) is connected with the front shell (3) through bolts, and a small cover assembly (10) is arranged on the middle shell (19) to achieve the functions of gear selection and gear shifting of the transmission.
2. The thirteen-gear transmission for the dump truck according to claim 1, wherein: the middle shaft transmission gear (28), the middle shaft overdrive gear (30), the middle shaft four-gear (31), the middle shaft three-gear (32) and the middle shaft two-gear (33) are positioned on the middle shaft (25) through the long flat key (29), and an inner hole of the middle shaft one-gear (35) is in large interference fit with the middle shaft (25) and is positioned on the middle shaft (25) through the cylindrical pin (34).
3. The thirteen-gear transmission for the dump truck according to claim 1, wherein: the front end of the intermediate shaft 25 is provided with an oil pump (27) which lubricates a needle bearing (23) in the idle gear (22) through an inner box pipe (24).
4. The thirteen-gear transmission for the dump truck according to claim 1, wherein: a five-six gear sliding sleeve (6) of the main box (I) is meshed with a main shaft overdrive gear (7) to form a six gear or a twelve gear; the five-six gear sliding sleeve (6) is meshed with the input shaft transmission gear (5) to form a fifth gear or an eleventh gear; the three-fourth gear sliding sleeve (11) is meshed with the four-gear (9) of the main shaft to form a fourth gear or a tenth gear; the three-four gear sliding sleeve (11) is meshed with a main shaft three-gear (12) to form a third gear or a ninth gear; a first-gear sliding sleeve (14) is meshed with a main shaft second-gear (13) to form a second gear or an eighth gear; a first-gear sliding sleeve (14) and a second-gear sliding sleeve (15) are meshed with a first-gear wheel of the main shaft to form a first gear or a seventh gear; the reverse climbing sliding sleeve (17) is meshed with the main shaft climbing gear (16) to form climbing, and the reverse climbing sliding sleeve (17) is meshed with the main shaft reverse gear (18) to form reverse gear.
5. The thirteen-gear transmission for the dump truck according to claim 1, wherein: the gear climbing speed ratio 16.274, the twelve speed ratio 0.787, the average value of the speed ratio difference of each forward gear is 1.287.
6. The thirteen-gear transmission for the dump truck according to any one of claims 1 to 5, wherein: the small cover assembly (10) is provided with a double H valve (39) and an air-operated locking valve (38), a double H valve air inlet (A) is connected with an air source of the whole vehicle, a double H valve air outlet I (B) is connected with a low-gear air inlet pipe of the auxiliary box, a double H valve air outlet II (C) is connected with a high-gear air inlet of the auxiliary box, and an air-operated locking valve air inlet (E) is connected with a handle switch and is used for controlling the double H valve air outlet I (B) and the double H valve air outlet II (C) to give out air so as to realize high-gear and low-gear switching of the auxiliary box (II); and a gear locking cylinder device (40) is arranged on the small cover assembly (10), a gear locking cylinder air inlet (D) is connected with a high gear pipe of the auxiliary box (II), and when the auxiliary box (II) is positioned in a high gear area, reverse gear and climbing gear of the high gear area are locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210389952.1A CN114738446A (en) | 2022-04-14 | 2022-04-14 | Thirteen-gear transmission for dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210389952.1A CN114738446A (en) | 2022-04-14 | 2022-04-14 | Thirteen-gear transmission for dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114738446A true CN114738446A (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210389952.1A Pending CN114738446A (en) | 2022-04-14 | 2022-04-14 | Thirteen-gear transmission for dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114738446A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207364194U (en) * | 2017-09-20 | 2018-05-15 | 陕西法士特齿轮有限责任公司 | One kind nine keeps off twin countershaft transmission |
| CN210397682U (en) * | 2019-07-25 | 2020-04-24 | 中国重汽集团大同齿轮有限公司 | Single H operating mechanism of heavy nine-gear transmission |
| CN214146441U (en) * | 2020-10-10 | 2021-09-07 | 苏州绿控传动科技股份有限公司 | New forms of energy truck derailleur |
| CN214617725U (en) * | 2021-02-24 | 2021-11-05 | 中国重汽集团济南动力有限公司 | Special speed changer for dumper |
-
2022
- 2022-04-14 CN CN202210389952.1A patent/CN114738446A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207364194U (en) * | 2017-09-20 | 2018-05-15 | 陕西法士特齿轮有限责任公司 | One kind nine keeps off twin countershaft transmission |
| CN210397682U (en) * | 2019-07-25 | 2020-04-24 | 中国重汽集团大同齿轮有限公司 | Single H operating mechanism of heavy nine-gear transmission |
| CN214146441U (en) * | 2020-10-10 | 2021-09-07 | 苏州绿控传动科技股份有限公司 | New forms of energy truck derailleur |
| CN214617725U (en) * | 2021-02-24 | 2021-11-05 | 中国重汽集团济南动力有限公司 | Special speed changer for dumper |
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