CN220850594U - Gearbox assembly for electric loader - Google Patents
Gearbox assembly for electric loader Download PDFInfo
- Publication number
- CN220850594U CN220850594U CN202322407593.0U CN202322407593U CN220850594U CN 220850594 U CN220850594 U CN 220850594U CN 202322407593 U CN202322407593 U CN 202322407593U CN 220850594 U CN220850594 U CN 220850594U
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- gear
- shaft
- clutch
- reverse
- assembly
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- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000005461 lubrication Methods 0.000 claims description 25
- 239000003921 oil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of gearboxes, and particularly discloses a gearbox assembly for an electric loader, which comprises a box body, wherein an input shaft and an intermediate shaft are arranged in the box body, the input shaft is in transmission connection with an output shaft, a sun gear is arranged on the intermediate shaft, and a reverse gear clutch, a first gear clutch, a second gear clutch, an output shaft assembly and a speed change valve for gear shifting are also arranged in the box body; the reverse gear clutch, the first gear clutch and the second gear clutch are switched through the speed change valve, and the output shaft assembly is in transmission connection; the input end cover is arranged on the box body and on the shaft side of the input shaft, the driving motor is arranged on the end cover and is directly connected with the input shaft through the spline, the efficiency is higher, the structure is simple and compact, the switching of three gears of front two and back one is realized, the torque converter assembly, the power takeoff gear, the triaxial assembly and the overrunning clutch are omitted, the structure is simpler, the reliability is higher, the efficiency is higher, and the cost is lower.
Description
Technical Field
The utility model belongs to the technical field of gearboxes, and particularly relates to a gearbox assembly for an electric loader.
Background
The traditional gearbox assembly for the engineering machinery fuel vehicle generally comprises a torque converter assembly, a power takeoff gear, a three-shaft assembly, an overrunning clutch, a variable speed pump, a reverse gear clutch, a first gear clutch, a second gear clutch and an output shaft assembly. The engine is connected with the torque converter assembly, the torque converter assembly converts mechanical energy into hydraulic energy, then the hydraulic energy is converted into mechanical energy and is output to the triaxial assembly, the overrunning clutch is used for completing automatic switching between light load and heavy load, power is transmitted to the gear clutch, the variable speed pump is used for pumping the oil to the variable speed valve, the combination and the release of the gear clutch are controlled by the variable speed valve so as to complete gear shifting, and finally the gear shifting is output by the output shaft assembly.
At present, the electric loader is in a starting stage in China, a traditional gearbox for a fuel vehicle is widely used, and a special gearbox is not used for the electric loader. The existing gearbox assembly has the disadvantages of large volume, complex structure, low efficiency, unmatched speed ratio and high manufacturing and maintenance cost, and therefore, a special gearbox assembly for an electric loader needs to be provided to solve the problem
Disclosure of utility model
Aiming at the problems of large volume, complex structure and high manufacturing and maintenance cost of the gearbox assembly in the prior art, the gearbox assembly for the electric loader is provided. The utility model provides the following technical scheme:
The gearbox assembly for the electric loader comprises a box body, wherein an input shaft and an intermediate shaft are arranged in the box body, the input shaft is in transmission connection with an output shaft, a sun gear is arranged on the intermediate shaft, and a reverse gear clutch, a first gear clutch, a second gear clutch, an output shaft assembly and a speed change valve for gear shifting are also arranged in the box body; the reverse gear clutch, the first gear clutch and the second gear clutch are switched through the speed change valve, and the output shaft assembly is in transmission connection; an input end cover is arranged on the box body and on the shaft side of the input shaft, and a driving motor is arranged on the end cover and is in driving connection with the input shaft.
Preferably, the first-gear clutch comprises a first-gear friction pair, a first-gear planet carrier, a first-gear annular gear, a first-gear planet wheel and a connecting disc, wherein the first-gear planet carrier is arranged on the sun wheel, the first-gear annular gear is arranged on the periphery of the first-gear planet carrier, and the first-gear friction pair is arranged on the periphery of the first-gear annular gear; the first gear friction pair is operatively connected to the shift valve and to the second gear clutch via the connecting disc.
Preferably, the second-gear clutch comprises a second-gear pressure receiving disc, a second-gear shaft, a second-gear wheel connected with the output shaft assembly, and a second-gear friction pair for switching connection of the second-gear pressure receiving disc and the second-gear shaft, wherein the second-gear pressure receiving disc is in pressure contact connection with the connecting disc, the second-gear pressure receiving disc is rotationally connected to the second-gear shaft, the second-gear wheel is fixedly connected with the second-gear pressure receiving disc, and the second-gear friction pair is arranged between the pressure receiving disc and the second-gear shaft.
Preferably, the output shaft assembly comprises an output shaft, an output gear, a front output flange and a rear output flange, wherein the output shaft is rotationally connected to the front output flange and the rear output flange, and the output gear is arranged on the output shaft and is meshed and connected with the second gear.
Preferably, the reverse clutch is arranged on the shaft side of the first-gear clutch in parallel and comprises a reverse friction pair, a reverse planet carrier, a reverse annular gear and a reverse planet wheel, wherein the reverse planet carrier is arranged on the sun wheel, the reverse annular gear is arranged on the periphery of the reverse planet carrier, and the reverse friction pair is arranged on the periphery of the reverse annular gear; the reverse friction pair is operatively connected to the shift valve.
Preferably, the intermediate shaft and the input shaft are provided with gear pairs in meshed connection.
Preferably, the box body is provided with a forced lubrication oil inlet, and the forced lubrication oil inlet is arranged on the side of the intermediate shaft and is communicated with the intermediate shaft, the second gear shaft, the first gear clutch and the reverse gear clutch.
Preferably, the intermediate shaft is provided with a first lubrication hole, and the first lubrication hole is arranged on the side edge of the gear pair.
Preferably, a second lubrication hole is formed in the intermediate shaft, and the second lubrication hole is formed in the sun gear and faces the gear clutch.
Compared with the prior art, the utility model has the following beneficial effects:
1. The input end cover is arranged on the box body and on the shaft side of the input shaft, the driving motor is arranged on the end cover and is directly connected with the input shaft through a spline, so that the efficiency is higher, and the structure is simple and compact;
2. The three gears of the front two gears and the rear one are switched, so that the design of a torque converter assembly, a power takeoff gear, a three-shaft assembly and an overrunning clutch is omitted, the structure is simpler, the reliability is higher, the efficiency is higher, and the cost is lower;
3. The novel lubricating oil way is provided, and the intermediate shaft, the bearings and the gear parts can be lubricated through the forced lubrication oil inlet.
Drawings
FIG. 1 is a schematic diagram of a structure in an embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic diagram of the present utility model;
In the attached drawings, 1, a box body; 2. a driving motor; 3. an input end cap; 4. an input shaft; 5. a gear pair; 6. forced lubrication oil inlet; 7. a first lubrication hole; 8. an intermediate shaft; 9. a positioning sleeve; 10. a sun gear; 11. a reverse clutch; 111. reverse gear friction pair; 112. reverse gear planet carrier; 113. reverse gear inner gear ring; 114. a reverse gear planet wheel; 12. a first gear clutch; 121. a first-gear friction pair; 122. a first gear planet carrier; 123. a first-gear annular gear; 124. a first-gear planetary gear; 125. a connecting disc; 13. a second gear clutch; 131. a second gear; 132. a second-gear pressure receiving plate; 133. a second-gear friction pair; 134. a second gear shaft; 14. an output shaft assembly; 141. a rear output flange; 142. an output gear; 143. an output shaft; 144. a front output flange; 15. and a second lubrication hole.
Detailed Description
The directional words such as "upper", "lower", "left", "right", and the like, used in the following embodiments are merely directions with reference to the drawings, and thus, the directional words used are intended to illustrate, not to limit, the utility model.
1-3, A gearbox assembly for an electric loader comprises a box body 1, wherein an input shaft 4 and an intermediate shaft 8 are arranged in the box body 1, the input shaft 4 is in transmission connection with an output shaft 143, a sun gear 10 is arranged on the intermediate shaft 8, and a reverse gear clutch 11, a first gear clutch 12, a second gear clutch 13, an output shaft assembly 14 and a speed change valve for gear shifting are also arranged in the box body 1; the reverse gear clutch 11, the first gear clutch 12 and the second gear clutch 13 are switched through a speed change valve, and the output shaft assembly 14 is in transmission connection; the input end cover 3 is arranged on the box body 1 and on the shaft side of the input shaft 4, the driving motor 2 is arranged on the end cover, the driving motor 2 is directly connected with the input shaft 4 through a spline, the efficiency is higher, the structure is simple and compact, the switching of three gears of front two and back one is realized, the torque converter assembly, the power takeoff gear, the triaxial assembly and the overrunning clutch are omitted, the structure is simpler, the reliability is higher, the efficiency is higher, and the cost is lower.
Further, the first gear clutch 12 includes a first gear friction pair 121, a first gear planet carrier 122, a first gear ring gear 123, a first gear planet wheel 124 and a connecting disc 125, wherein the first gear planet carrier is mounted on the sun gear 10, the first gear ring gear 123 is arranged at the periphery of the first gear planet carrier 122, and the first gear friction pair 121 is arranged at the periphery of the first gear ring gear 123; the first gear friction pair 121 is operatively connected to the shift valve and to the second gear clutch 13 via a land 125.
Further, the second-gear clutch 13 includes a second-gear pressure-receiving plate 132, a second-gear shaft 134, a second-gear 131 for connecting with the output shaft assembly 14, and a second-gear friction pair 133 for switching connection between the second-gear pressure-receiving plate and the second-gear shaft 134, where the second-gear pressure-receiving plate is in press-contact connection with the connecting disc 125, the second-gear pressure-receiving plate is rotatably connected to the second-gear shaft 134, the second-gear is fixedly connected to the second-gear pressure-receiving plate, and the second-gear friction pair is disposed between the pressure-receiving plate and the second-gear shaft 134.
Further, the output shaft assembly 14 includes an output shaft 143, an output gear 142, a front output flange 144 and a rear output flange 141, the output shaft 143 is rotatably connected to the front output flange 144 and the rear output flange 141, and the output gear 142 is mounted on the output shaft 143 and is meshed with the second gear.
Further, the reverse clutch 11 is arranged on the shaft side of the first gear clutch 12 in parallel, and comprises a reverse friction pair 111, a reverse planet carrier 112, a reverse annular gear 113 and a reverse planet gear 114, wherein the reverse planet carrier is arranged on the sun gear 10, the reverse annular gear is arranged on the periphery of the reverse planet carrier, and the reverse friction pair is arranged on the periphery of the reverse annular gear; the reverse friction pair is operatively connected to the shift valve.
Furthermore, the intermediate shaft 8 and the input shaft 4 are provided with a gear pair 5 which is in meshed connection, the speed ratio and the wheelbase can be adjusted, the complete machine matching is facilitated, the intermediate shaft 8 is provided with a positioning sleeve 9 which can separate bearings, and the gear pair 5 and the sun gear 10 are positioned.
Further, a forced lubrication oil inlet 6 is arranged on the box body 1, and the forced lubrication oil inlet 6 is arranged on the shaft side of the intermediate shaft 8 and is communicated with the intermediate shaft 8, the second gear shaft 134, the first gear clutch 12 and the reverse gear clutch 11. The intermediate shaft 8 is provided with a first lubrication hole 7, and the first lubrication hole 7 is arranged on the side edge of the gear pair 5. The intermediate shaft 8 is provided with a second lubrication hole 15, and the second lubrication hole 15 is provided on the sun gear 10 and faces the gear clutch. The input shaft 4 and the intermediate shaft 8 are respectively provided with a first bearing at two sides of the gear pair 5, a second bearing is also arranged on the intermediate shaft 8 at the shaft side of the first-gear planet carrier 122, and a third bearing is also arranged on the intermediate shaft 8 at the shaft side of the sun gear 10; the first lubrication holes 7 are provided between the first bearings, and the second lubrication holes 15 are provided between the second bearings, so that splash lubrication can be performed when the intermediate shaft 8 rotates.
Specifically, the gear switching process is as follows:
Forward first gear: drive motor 2 → input shaft 4 → intermediate shaft 8 → sun gear 10 → first gear planet carrier 122 → connecting disc 125 → pressure receiving disc → second gear 131 → output gear 142 → output shaft 143 → front output flange 144 and rear output flange 141.
Forward second gear: drive motor 2→input shaft 4→intermediate shaft 8→sun gear 10→secondary gear shaft 134→secondary gear 131→output gear 142→output shaft 143→front output flange 144 and rear output flange 141.
Backing up for one gear: drive motor 2→input shaft 4→intermediate shaft 8→sun gear 10→reverse gear ring gear 113→first gear planet carrier 122→connecting disc 125→pressure plate→second gear 131→output gear 142→output shaft 143→front output flange 144 and rear output flange 141.
Claims (9)
1. The gearbox assembly for the electric loader comprises a box body (1), wherein an input shaft (4) and an intermediate shaft (8) are arranged in the box body (1), and the input shaft (4) is in transmission connection with an output shaft (143), and is characterized in that a sun gear (10) is arranged on the intermediate shaft (8), and a reverse gear clutch (11), a first gear clutch (12), a second gear clutch (13), an output shaft assembly (14) and a speed change valve for switching gear positions are also arranged in the box body (1); the reverse gear clutch (11), the first gear clutch (12) and the second gear clutch (13) are switched through a speed change valve, and the output shaft assembly (14) is in transmission connection; an input end cover (3) is arranged on the box body (1) and on the shaft side of the input shaft (4), a driving motor (2) is arranged on the end cover, and the driving motor (2) is in driving connection with the input shaft (4).
2. The gearbox assembly for the electric loader according to claim 1, wherein the first-gear clutch (12) comprises a first-gear friction pair (121), a first-gear planet carrier (122), a first-gear annular gear (123), a first-gear planet wheel (124) and a connecting disc (125), the first-gear planet carrier is arranged on the sun gear (10), the first-gear annular gear (123) is arranged on the outer periphery of the first-gear planet carrier (122), and the first-gear friction pair (121) is arranged on the outer periphery of the first-gear annular gear (123); a first gear friction pair (121) is operatively connected to the shift valve and to the second gear clutch (13) via a connecting disc (125).
3. The gearbox assembly for an electric loader according to claim 2, wherein the second-gear clutch (13) comprises a second-gear pressure-receiving disc (132), a second-gear shaft (134), a second-gear wheel (131) for connecting with the output shaft assembly (14), and a second-gear friction pair (133) for switching connection of the second-gear pressure-receiving disc and the second-gear shaft (134), the second-gear pressure-receiving disc is in pressure contact connection with the connecting disc (125), the second-gear pressure-receiving disc is rotatably connected to the second-gear shaft (134), the second-gear wheel is fixedly connected with the second-gear pressure-receiving disc, and the second-gear friction pair is arranged between the pressure-receiving disc and the second-gear shaft (134).
4. A gearbox assembly for an electric loader according to claim 3, characterised in that the output shaft assembly (14) comprises an output shaft (143) and an output gear (142), a front output flange (144) and a rear output flange (141), the output shaft (143) being rotatably connected to the front output flange (144) and the rear output flange (141), the output gear (142) being mounted on the output shaft (143) and being in meshed connection with the second gear.
5. The gearbox assembly for the electric loader according to claim 1, wherein the reverse gear clutch (11) is arranged on the shaft side of the first gear clutch (12) in parallel, and comprises a reverse gear friction pair (111), a reverse gear planet carrier (112), a reverse gear annular gear (113) and a reverse gear planet wheel (114), the reverse gear planet carrier is arranged on the sun gear (10), the reverse gear annular gear is arranged on the periphery of the reverse gear planet carrier, and the reverse gear friction pair is arranged on the periphery of the reverse gear annular gear; the reverse friction pair is operatively connected to the shift valve.
6. Gearbox assembly for an electric loader according to claim 1, characterised in that the intermediate shaft (8) and the input shaft (4) are provided with a gear pair (5) in meshing connection.
7. The gearbox assembly for an electric loader according to any one of claims 1-6, wherein a forced lubrication oil inlet (6) is arranged on the box body (1), and the forced lubrication oil inlet (6) is arranged on the shaft side of the intermediate shaft (8) and is communicated with the intermediate shaft (8), the second gear shaft (134), the first gear clutch (12) and the reverse gear clutch (11).
8. The gearbox assembly for an electric loader according to claim 7, characterized in that the intermediate shaft (8) is provided with a first lubrication hole (7), and the first lubrication hole (7) is arranged at the side of the gear pair (5).
9. The gearbox assembly for an electric loader according to claim 7, characterized in that the sun gear (10) is provided with a second lubrication hole (15), which second lubrication hole (15) is provided on the intermediate shaft (8) and faces the gear clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322407593.0U CN220850594U (en) | 2023-09-05 | 2023-09-05 | Gearbox assembly for electric loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322407593.0U CN220850594U (en) | 2023-09-05 | 2023-09-05 | Gearbox assembly for electric loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850594U true CN220850594U (en) | 2024-04-26 |
Family
ID=90781488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322407593.0U Active CN220850594U (en) | 2023-09-05 | 2023-09-05 | Gearbox assembly for electric loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850594U (en) |
-
2023
- 2023-09-05 CN CN202322407593.0U patent/CN220850594U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |