CN111853199B - Power gear-shifting speed variator for wheel excavator - Google Patents
Power gear-shifting speed variator for wheel excavator Download PDFInfo
- Publication number
- CN111853199B CN111853199B CN202010778150.0A CN202010778150A CN111853199B CN 111853199 B CN111853199 B CN 111853199B CN 202010778150 A CN202010778150 A CN 202010778150A CN 111853199 B CN111853199 B CN 111853199B
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- gear
- driving shaft
- driven shaft
- planet carrier
- spline
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- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 16
- 230000033001 locomotion Effects 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000009365 direct transmission Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- 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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
- F16H47/08—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type the mechanical gearing being of the type with members having orbital motion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a power shift transmission of a wheel type excavator, which aims to solve the defect that the existing wheel type excavator cannot realize automatic speed change.
Description
Technical Field
The invention relates to a transmission, in particular to a power gear transmission of a wheel excavator.
Background
Chinese patent CN206419442U discloses such an improved transmission assembly, which is structurally characterized in that: the gear shifting fork shaft assembly comprises a box body, a two-shaft assembly, an intermediate shaft assembly and a gear shifting fork shaft assembly, wherein the two-shaft assembly comprises a two-shaft and a fourth five-speed tooth sleeve, a fourth five-speed tooth seat, a fifth speed cone, a fifth speed gear, a third speed gear, a first needle roller bearing, a second three-speed tooth sleeve, a second three-speed tooth seat, a second gear, a second needle roller bearing, a third needle roller bearing, a first speed taper ring, a first reverse speed tooth seat, a synchronizer tooth seat, a first reverse speed tooth sleeve, a needle roller bearing ring, a fourth needle roller bearing, a reverse gear, a contact ball bearing, a spacer, a speedometer driving gear, a centripetal ball bearing and a flange; the intermediate shaft assembly comprises an intermediate shaft and a first-stage speed reduction gear, a fifth-speed gear, a third-speed gear and a second-speed gear which are arranged on the intermediate shaft, and two ends of the intermediate shaft are connected with the box body through an intermediate bearing; the speed change fork shaft assembly comprises a speed change fork shaft, a gear shifting pulling block, a fourth five-speed change fork, an interlocking plate, a second three-speed change fork, a first speed and reverse speed change fork, and a second gear is coaxially arranged on one end face of the reverse gear; a plurality of tooth bodies which are uniformly distributed along the circumferential direction are arranged on the reversing gear 1; the second gear is provided with a plurality of cones uniformly distributed along the circumferential direction, the inner wall of the first reversing gear sleeve is provided with a plurality of reversing cones uniformly distributed along the circumferential direction, and the plurality of cones are meshed with the reversing cones. Therefore, this structure cannot realize automatic shifting.
Disclosure of Invention
The invention aims to provide a power gear-shifting transmission of a wheel excavator, which can realize automatic speed change and has a compact structure.
In order to achieve the purpose, the power-on transmission of the wheel type excavator comprises a box body, a hydraulic torque converter, a power take-off device, an output gear box, a reverse gear planetary gear, a forward gear planetary gear, a three-gear planetary gear, a two-gear planetary gear, a driving shaft I, a driving shaft II and a driven shaft, wherein the hydraulic torque converter which is in transmission connection with an engine is connected with the power take-off device through a power taking through-axle gear, the driving shaft I in the hydraulic torque converter is in transmission connection with one end of the driving shaft II in the box body through a sleeve, the other end of the driving shaft II is connected with the box body through a bearing, a planet carrier II and the bearing, the driving shaft II is sleeved with the reverse gear planetary gear and the forward gear planetary gear, a planet carrier I on the reverse gear planetary gear is connected with the reverse gear brake, a gear II on the forward gear planetary gear is sleeved with the planet carrier II on the forward gear planetary gear, the planet carrier II on the forward gear planetary gear is connected with the planet carrier III on the driven shaft, the driven shaft is sleeved with the three-gear planetary gear carrier III which is arranged on the driven shaft, the three-gear planetary gear carrier II is sleeved with the driven shaft II is connected with the driven shaft III through the bearing, the three-gear carrier planetary gear carrier III is further connected with the driven shaft III through the bearing, and the driven shaft III is connected with one end of the driven shaft III through the brake cylinder III, and the output gear carrier is connected with the output gear box III.
The other end face of the driving shaft II is provided with a columnar bulge, the circumferential surface of the columnar bulge is provided with an annular groove which is convenient for placing a sealing ring, and the axial position of the driving shaft II is provided with an oil way which is communicated with an oil way on a driven shaft.
A columnar groove capable of being matched with a columnar bulge on the other end face of the driving shaft II is formed in the end face of the driven shaft arranged in the box body, an oil way is formed in the axial position of the driven shaft, the oil way is communicated with the oil way on the driving shaft II, and a brake oil way is further formed in the axial position of the driven shaft, so that the brake oil way is connected with a brake oil cylinder.
The inner hole of the planet carrier II is arranged into a stepped shape to form a large hole and a small hole, and the inner surface of the large hole facing outwards is provided with a spline which is convenient to be meshed with the planet carrier III.
And the outer surface of the planet carrier III is provided with a spline which is convenient to be meshed with the inner spline of the planet carrier II.
The inner surface of the sleeve is provided with a spline, and the outer surface of the sleeve is sleeved with a speed measuring wheel II and is contacted with a sensor II arranged on the box body.
And a spline is arranged on the outer surface of one end of the driving shaft I, which is connected with the sleeve.
And a spline is arranged on the outer surface of one end of the driving shaft II, which is connected with the sleeve.
The driving disc is connected with the driven shaft through a spline.
The axial section of the gear ring IV is Z-shaped, and the outer surfaces of the two ends of the gear ring IV are respectively provided with a spline which is convenient for installing a second-gear brake and a first-gear clutch.
After the structure is adopted, as the hydraulic torque converter which is in transmission connection with the engine is connected with the power takeoff through the power take-off bridging gear, a driving shaft I in the hydraulic torque converter is in transmission connection with one end of a driving shaft II in the box body through a sleeve, the other end of the driving shaft II is connected with the box body through a bearing, a planet carrier II and a bearing, a reverse gear planet row and a forward gear planet row are sleeved on the driving shaft II, a planet carrier I on the reverse gear planet row is connected with a reverse gear brake, a gear ring I on the reverse gear planet row is connected with a planet wheel II on the forward gear planet row, a forward gear brake is sleeved on the gear ring II on the forward gear planet row, a planet carrier II on the forward gear planet row is connected with a planet carrier III on a three-gear planet row arranged on a driven shaft, the gear ring III on the three-gear planetary row is connected with a three-gear brake, the gear ring III is connected with a planet carrier IV on the two-gear planetary row, the gear ring IV on the two-gear planetary row is connected with a two-gear brake, a brake cylinder is further arranged on a driven shaft, the brake cylinder is connected with the gear ring IV on the two-gear planetary row through a first-gear clutch, the first-gear clutch is further connected with the driven shaft through a driving disc, one end of the driven shaft is arranged in a box body and is connected with the box body through a bearing, the planet carrier III, the planet carrier II and the bearing, the other end of the driven shaft extends into an output gear box and is in transmission connection with a bevel gear in the output gear box, and the purposes of automatic speed change and compact structure can be achieved through a plurality of speed measuring wheels, sensors and hydraulic control brakes.
Drawings
The invention is described in further detail below with reference to the drawings and examples.
FIG. 1 is a schematic front view of a wheeled excavator power engagement transmission of the present invention.
In the figure: 1. a torque converter 2, drive shaft I3, tachometer wheel II 4, sleeve 5, drive shaft II 6, sensor II 7, planet carrier I8, ring gear I9, reverse gear planetary gear 10, forward gear planetary gear 11, ring gear II 12, planet gear II 13, housing 14, ring gear III 15, three gear planetary gear 16, ring gear IV 17, two gear planetary gear 18, driven shaft 19, bevel gear 20, output gearbox 21, first gear clutch 22, second gear brake 23, three gear brake 24, planet carrier III 25, planet carrier II 26, forward gear brake 27, reverse gear brake 28, power take off 29, power take off gear 30, brake cylinder 31, drive disk.
Detailed Description
The power gear-shifting transmission of the wheel type excavator shown in the attached figure 1 comprises a box body 13, a hydraulic torque converter 1, a power takeoff 28, an output gear box 20, a reverse gear planetary row 9, a forward gear planetary row 10, a three-gear planetary row 15, a two-gear planetary row 17, a driving shaft I2, a driving shaft II 5 and a driven shaft 18, wherein the hydraulic torque converter 1 which is in transmission connection with an engine is connected with the power takeoff 28 through a power-taking bridging gear 29, the driving shaft I2 in the hydraulic torque converter 1 is in transmission connection with one end of a driving shaft II 5 in the box body 13 through a sleeve 4, the other end of the driving shaft II 5 is connected with the box body 13 through a bearing, a planet carrier II 25 and a bearing, the driving shaft II 5 is sleeved with a reverse gear planetary row 9 and a forward gear planetary row 10 to form a total reverse gear and a total forward gear area, a planetary carrier I7 on the reverse gear planetary row 9 is connected with a reverse gear brake 27, a gear ring I8 on the reverse gear planetary row 9 is connected with a planetary gear II 12 on the forward gear planetary row 10, a forward gear brake 26 is sleeved on a gear ring II 11 on the forward gear planetary row 10, the total reverse gear and the total forward gear area are connected with a planetary carrier III 24 on a three-gear planetary row 15 arranged on a driven shaft 18 through a planetary carrier II 25 on the forward gear planetary row 10, three reverse gear positions and three forward gear positions extend, a three-gear planetary row 15 and a two-gear planetary row 17 are sleeved on the driven shaft 18, the gear ring III 14 on the third-gear planetary row 15 is connected with a third-gear brake 23, the gear ring III 14 is connected with a planet carrier IV on the second-gear planetary row 17, the gear ring IV 16 on the second-gear planetary row 17 is connected with a second-gear brake 22, a brake cylinder 30 is arranged on the driven shaft 18, the brake cylinder 30 is connected with the gear ring IV 16 on the second-gear planetary row 17 through a first-gear clutch 21, the first-gear clutch 21 is also connected with the driven shaft 18 through a transmission disc 31, one end of the driven shaft 18 is arranged in the box 13 and is connected with the box 13 through a bearing, a planet carrier III 24, a planet carrier II 25 and a bearing, the other end of the driven shaft 18 extends into the output gear box 20 and is in transmission connection with a bevel gear 19 in the output gear box 20, a tachometer gear and a sensor are also provided in the output gearbox 20, and a tachometer gear and a sensor are also provided in the power take-off 28; a columnar bulge is arranged on the other end face of the driving shaft II 5, an annular groove which is convenient for placing a sealing ring is arranged on the circumferential surface of the columnar bulge, and an oil way is arranged at the axial position of the driving shaft II 5 so as to be communicated with an oil way on the driven shaft 18; a columnar groove which can be matched with a columnar bulge on the other end face of the driving shaft II 5 is formed in the end face of the driven shaft 18 arranged in the box body 13, an oil way is formed in the axial position of the driven shaft 18, the oil way is communicated with the oil way on the driving shaft II 5, a brake oil way is also formed in the axial position of the driven shaft 18, and the brake oil way is connected with the brake oil cylinder 30; the inner hole of the planet carrier II 25 is arranged into a stepped shape to form a large hole and a small hole, and the inner surface of the large hole facing outwards is provided with a spline so as to be meshed with the planet carrier III 24 conveniently; the outer surface of the planet carrier III 24 is provided with a spline which is convenient to be meshed with an inner spline of the planet carrier II 25; the inner surface of the sleeve 4 is provided with a spline, and the outer surface of the sleeve 4 is sleeved with a tachometer wheel II 3 and is contacted with a sensor II 6 arranged on the box 13; a spline is arranged on the outer surface of one end of the driving shaft I2 connected with the sleeve 4; a spline is arranged on the outer surface of one end of the driving shaft II 5 connected with the sleeve 4; the transmission disc 31 is connected with the driven shaft 18 through a spline; the axial section of the gear ring IV 16 is Z-shaped, and the outer surfaces of the two ends of the gear ring IV 16 are respectively provided with a spline which is convenient for installing a second-gear brake 22 and a first-gear clutch 21.
When the power gear-shifting transmission of the wheel type excavator is in a working state, an engine drives a pump wheel in the hydraulic torque converter 1 to rotate, a power taking main gear is arranged on a shell of the pump wheel, power is transmitted to a power taking bridging gear 29 by the power taking main gear, the power taking bridging gear 29 is simultaneously transmitted to two power taking gears, the power taking gears are provided with power taking ports, hydraulic pumps required by operation can be installed on the power taking ports, meanwhile, the rotation of the pump wheel of the hydraulic torque converter 1 drives hydraulic oil in the hydraulic torque converter 1 to rotate, the rotating hydraulic oil impacts a turbine of the hydraulic torque converter 1 to enable the turbine to rotate, at the moment, the hydraulic oil is guided by a guide wheel to enable the flowing hydraulic oil to jointly impact the turbine again, so that driving torque obtained by the turbine is increased in proportion, the turbine drives a driving shaft I2 to rotate, the driving shaft I2 drives a driving shaft II 5 to rotate, and the driving shaft II 5 simultaneously drives a reverse gear sun gear and a forward gear sun gear to rotate.
When the reversing is needed, the reverse gear brake 27 is braked, the forward gear brake 26 is released, the planet carrier I7 is fixed and does not rotate, at the moment, the gear ring I8 is reversed, the planet carrier II 25 of the forward gear is also reversed, and the reversing of the wheel excavator is realized; when the forward motion is required, the forward motion stop 26 is braked, the reverse motion stop 27 is released, the gear ring II 11 of the forward motion stop is braked, and the planet carrier II 25 of the forward motion stop rotates positively at the moment, so that the wheel excavator moves forward.
The three forward gears and the three reverse gears are realized as follows: after the forward or reverse total gear is realized, when the three-gear brake 23 is braked, the gear ring III 14 of the three gears is fixed, power is input by the planet carrier III 24 of the three gears, and then is output by the sun gear of the three gears through the driven shaft 18, and the wheel type excavator runs according to the speed ratio of the three gears; when the second gear brake 22 is braked, the gear ring IV 16 of the second gear is fixed, at the moment, the second gear planetary row 17 and the third gear planetary row 15 are combined into a complex planetary row, power is input by the planet carrier III 24 of the third gear, and is output from the driven shaft 18 through the gear ring III 14 of the third gear, the planet carrier IV of the second gear and the sun gear of the second gear, and the wheel excavator runs according to the speed ratio of the second gear; when the first gear clutch 21 is locked, the driven shaft 18, the driving disc 31, the first gear clutch 21, the second gear planetary row 17 and the third gear ring III 14 are locked into a whole in a rotating way, and the transmission is direct transmission, the speed ratio is 1, so that the first gear running of the wheel type excavator is realized. Thus realizing three gears for forward movement and three gears for reverse movement.
Claims (8)
1. A wheeled excavator power shift transmission, characterized by: the hydraulic torque converter (1) which is connected with an engine through a power taking-off bridge gear (29) is connected with the power taking-off device (28), a power taking-off device (28), an output gear box (20), a reverse gear planetary gear (9), a forward gear planetary gear (10), a three-gear planetary gear (15), a two-gear planetary gear (17), a driving shaft I (2), a driving shaft II (5) and a driven shaft (18) are arranged on the driving shaft II (5), the driving shaft I (2) in the hydraulic torque converter (1) is in transmission connection with one end of the driving shaft II (5) in the box (13) through a sleeve (4), the other end of the driving shaft II (5) is connected with the box (13) through a bearing, a planet carrier II (25) and the bearing, the reverse gear planetary gear (9) and the forward gear planetary gear (10) are sleeved on the driving shaft II (5), the planet carrier I (7) on the reverse gear planetary gear (9) is connected with a reverse gear brake (27), the gear I (8) on the reverse gear planetary gear (9) is connected with the forward gear II (12), the forward gear (10) is sleeved on the planet carrier II (11), the planet carrier II (25) on the forward gear planet row (10) is connected with the planet carrier III (24) on the three-gear planet row (15) arranged on the driven shaft (18), the three-gear planet row (15) and the two-gear planet row (17) are sleeved on the driven shaft (18), the gear ring III (14) on the three-gear planet row (15) is connected with the three-gear brake (23), the gear ring III (14) is connected with the planet carrier IV on the two-gear planet row (17), the gear ring IV (16) on the two-gear planet row (17) is connected with the two-gear brake (22), the brake cylinder (30) is further arranged on the driven shaft (18) and is connected with the gear ring IV (16) on the two-gear planet row (17) through the first-gear clutch (21), the first-gear clutch (21) is further connected with the driven shaft (18) through the transmission disc (31), one end of the driven shaft (18) is arranged in the box (13) and is connected with the gear box (20) through the bearing, the planet carrier III (24), the gear carrier II (25) and the driven shaft (13) are connected with the other end of the box (18) and extend into the gear box (20); a columnar bulge is arranged on the other end face of the driving shaft II (5), an annular groove which is convenient for placing a sealing ring is arranged on the circumferential surface of the columnar bulge, and an oil way is arranged at the axial position of the driving shaft II (5) so as to be communicated with an oil way on a driven shaft (18); a columnar groove which can be matched with a columnar bulge on the other end face of the driving shaft II (5) is formed in the end face of the driven shaft (18) arranged in the box body (13), an oil way is formed in the axial position of the driven shaft (18) and is communicated with the oil way on the driving shaft II (5), and a brake oil way is further formed in the axial position of the driven shaft (18) and is connected with a brake oil cylinder (30).
2. The wheeled excavator power shift transmission of claim 1 wherein: the inner hole of the planet carrier II (25) is arranged into a stepped shape to form a large hole and a small hole, and the inner surface of the large hole facing outwards is provided with a spline which is convenient to be meshed with the planet carrier III (24).
3. The wheeled excavator power shift transmission of claim 1 wherein: and a spline is arranged on the outer surface of the planet carrier III (24) so as to be conveniently meshed with an internal spline of the planet carrier II (25).
4. The wheeled excavator power shift transmission of claim 1 wherein: the inner surface of the sleeve (4) is provided with a spline, and the outer surface of the sleeve (4) is sleeved with a speed measuring wheel II (3) and is contacted with a sensor II (6) arranged on the box body (13).
5. The wheeled excavator power shift transmission of claim 1 wherein: and a spline is arranged on the outer surface of one end of the driving shaft I (2) connected with the sleeve (4).
6. The wheeled excavator power shift transmission of claim 1 wherein: and a spline is arranged on the outer surface of one end of the driving shaft II (5) connected with the sleeve (4).
7. The wheeled excavator power shift transmission of claim 1 wherein: the driving disc (31) is connected with the driven shaft (18) through a spline.
8. The wheeled excavator power shift transmission of claim 1 wherein: the axial section of the gear ring IV (16) is Z-shaped, and the outer surfaces of the two ends of the gear ring IV (16) are respectively provided with a spline which is convenient for installing a second-gear brake (22) and a first-gear clutch (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778150.0A CN111853199B (en) | 2020-08-05 | 2020-08-05 | Power gear-shifting speed variator for wheel excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778150.0A CN111853199B (en) | 2020-08-05 | 2020-08-05 | Power gear-shifting speed variator for wheel excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111853199A CN111853199A (en) | 2020-10-30 |
| CN111853199B true CN111853199B (en) | 2024-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010778150.0A Active CN111853199B (en) | 2020-08-05 | 2020-08-05 | Power gear-shifting speed variator for wheel excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111853199B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747666A (en) * | 2015-03-26 | 2015-07-01 | 王广忠 | Novel loader transmission |
| CN107355518A (en) * | 2017-07-26 | 2017-11-17 | 福建省晋江市科华汽配有限公司 | The speed changer of hydraulic-driven wheel excavator |
| CN207178536U (en) * | 2017-09-13 | 2018-04-03 | 福建省晋江市科华汽配有限公司 | Excavator speed changer with brake |
| CN210003762U (en) * | 2019-03-31 | 2020-01-31 | 龙岩市万通机械有限公司 | Stepless speed change mechanism of hydraulic driving wheel type excavator |
| CN212717870U (en) * | 2020-08-05 | 2021-03-16 | 龙岩市万通机械有限公司 | Power gear shifting transmission of wheel type excavator |
-
2020
- 2020-08-05 CN CN202010778150.0A patent/CN111853199B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747666A (en) * | 2015-03-26 | 2015-07-01 | 王广忠 | Novel loader transmission |
| CN107355518A (en) * | 2017-07-26 | 2017-11-17 | 福建省晋江市科华汽配有限公司 | The speed changer of hydraulic-driven wheel excavator |
| CN207178536U (en) * | 2017-09-13 | 2018-04-03 | 福建省晋江市科华汽配有限公司 | Excavator speed changer with brake |
| CN210003762U (en) * | 2019-03-31 | 2020-01-31 | 龙岩市万通机械有限公司 | Stepless speed change mechanism of hydraulic driving wheel type excavator |
| CN212717870U (en) * | 2020-08-05 | 2021-03-16 | 龙岩市万通机械有限公司 | Power gear shifting transmission of wheel type excavator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111853199A (en) | 2020-10-30 |
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