CN212616159U - Novel gearbox of wheel type excavator - Google Patents
Novel gearbox of wheel type excavator Download PDFInfo
- Publication number
- CN212616159U CN212616159U CN202020932621.4U CN202020932621U CN212616159U CN 212616159 U CN212616159 U CN 212616159U CN 202020932621 U CN202020932621 U CN 202020932621U CN 212616159 U CN212616159 U CN 212616159U
- Authority
- CN
- China
- Prior art keywords
- gear
- speed
- speed gear
- low
- planetary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Structure Of Transmissions (AREA)
Abstract
The utility model discloses a gearbox of a novel wheel type excavator, which comprises a shell, an output shaft pivoted on the shell, a planetary speed reducing mechanism arranged in the shell, a shaft connecting sleeve, a transmission gear, an output gear and two high-speed and low-speed clutch mechanisms; the planetary reduction mechanism comprises a sun gear, a planetary gear shaft, a planetary gear carrier and an internal gear which are parallel to the output shaft, the planetary gear is arranged on the planetary gear carrier through the planetary gear shaft and is simultaneously meshed with the sun gear and the internal gear, and the planetary gear carrier is rotationally sleeved on the periphery of the sun gear; the shaft is connected with the input end of the sun wheel; the transmission gear is arranged at the output end of the planetary reduction mechanism, the output gear is arranged on the output shaft, and the transmission gear and the output gear are meshed with each other; the high-low speed clutch mechanism is respectively opposite to the planetary gear carrier and the internal gear, when the former injects hydraulic oil, the speed ratio of the planetary speed reducing mechanism is minimum, and when the latter injects hydraulic oil, the speed ratio of the planetary speed reducing mechanism is maximum. The utility model discloses a compact structure, volume are littleer, and can not stop not slow down and shift.
Description
Technical Field
The utility model relates to a gearbox technical field especially indicates a novel gearbox of wheeled excavator.
Background
At present, hydraulic drive walking boxes of wheel type excavators mainly have three types: firstly, the mechanical gear is engaged, and the gear can be shifted only after the whole vehicle is completely stopped; the gear shifting mechanism is provided with the synchronizer and the clutch at the input end, but the gearbox is arranged on a lower frame of the wheel type excavator, so that certain difficulty is brought to clutch control of the clutch, the clutch cannot realize semi-linkage through a flexible shaft, the clutch is engaged by pneumatic or hydraulic pressure, the engaging speed is too high, the whole vehicle needs to be decelerated during gear shifting, the whole vehicle cannot shake during gear shifting, and the smoothness of gear shifting is poor; and the friction clutch for the gear clutch can realize gear shifting without stopping or decelerating, but the existing hydraulic drive walking box adopting the friction clutch has large volume, so that the ground clearance of the lower frame of the wheel excavator is low, and the friction is more likely to occur during running on an undulating road surface, so that the outer surface of the walking box is abraded and even broken.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel gearbox of wheeled excavator, its compact structure, volume are littleer, can realize the demand of not stopping and not slowing down the speed change again.
In order to achieve the above purpose, the solution of the present invention is:
a gearbox of a novel wheel type excavator comprises a shell, an output shaft which is in pin joint fit with the shell, a planetary speed reducing mechanism arranged in the shell, a shaft connecting sleeve for mounting an input shaft of a traveling motor, a transmission gear, an output gear, a normally open type hydraulic high-speed gear clutch mechanism and a normally open type hydraulic low-speed gear clutch mechanism; the planetary reduction mechanism comprises a sun gear, a planetary gear shaft, a planetary gear carrier and an internal gear which are arranged in parallel with the output shaft, the planetary gear is arranged on the planetary gear carrier through the planetary gear shaft and is simultaneously meshed with the sun gear and the internal gear, and the planetary gear carrier is sleeved on the periphery of the sun gear and rotates around the sun gear; the shaft connecting sleeve is arranged outside the shell and is connected with the input end of the sun wheel; the transmission gear is arranged at the output end of the planetary reduction mechanism, the output gear is arranged on the output shaft, and the transmission gear and the output gear are meshed with each other; normally open hydraulic pressure high-speed clutch mechanism with planet wheel carrier sets up relatively, normally open hydraulic pressure low-speed gear clutch mechanism with the internal gear sets up relatively, works as when normally open hydraulic pressure high-speed gear clutch mechanism pours into hydraulic oil into, planetary reduction mechanism's velocity ratio is minimum, works as when normally open hydraulic pressure low-speed gear clutch mechanism pours into hydraulic oil into, planetary reduction mechanism's velocity ratio is the biggest.
The normally-open hydraulic high-speed gear clutch mechanism comprises a high-speed gear static friction plate fixed internal spline and a high-speed gear piston seat which are connected with the planet carrier, a high-speed gear piston, a high-speed gear friction plate group, a high-speed gear dynamic friction plate fixed wheel and a high-speed gear spring; the high-speed gear piston seat and the high-speed gear piston form a first closed cavity; the moving plate of the high-speed gear friction plate set is connected with the sun gear through the high-speed gear moving friction plate fixed wheel, and the static plate of the high-speed gear static friction plate set is connected with the high-speed gear static friction plate fixed internal spline; the high-speed gear spring is arranged outside the first closed cavity and opposite to the high-speed gear piston, the stator and the rotor of the high-speed gear friction sheet set are separated when the oil pressure of the first closed cavity is zero, the stator and the rotor of the high-speed gear friction sheet set are tightly pressed with the planet wheel carrier when the oil pressure of the first closed cavity is not zero, and the sun wheel, the planet wheel carrier, the high-speed gear static friction sheet fixed internal spline, the high-speed gear dynamic friction sheet fixed wheel and the high-speed gear piston seat are all locked to rotate together, so that the output rotating speed with the motor input shaft speed ratio of one is realized.
The transmission gear is connected with the high-speed gear piston seat.
And a high-speed gear piston ejector rod is arranged between the high-speed gear piston and the high-speed gear spring.
The transmission gear is provided with a high-speed-stop hydraulic oil inlet which is communicated to the first closed cavity.
The normally-open hydraulic low-speed clutch mechanism comprises a low-speed piston seat, a low-speed piston, a low-speed spring baffle, a low-speed friction plate group and a low-speed spring; the low-speed piston seat and the low-speed piston form a second closed cavity; the low-speed gear friction plate group is fixed on the low-speed gear piston seat; the low-speed gear friction plate set is opposite to the low-speed gear friction plate set baffle, the low-speed gear friction plate set baffle is fixed on the low-speed gear piston seat, and a stator of the low-speed gear friction plate set baffle is connected with the internal gear; the low-speed gear spring with low-speed gear spring baffle sets up relatively, and the second closed cavity oil pressure promotes when zero low-speed gear spring baffle so that low-speed gear friction disc's stator and rotor separate when the second closed cavity oil pressure is not zero the low-speed gear piston promotes low-speed gear friction disc's stator and rotor compress tightly low-speed gear friction disc baffle makes the internal gear for the low-speed gear piston seat is motionless, sun gear input rotational speed warp planetary gear reduction mechanism is by behind the speed reduction planetary gear carrier output, through fixing the fixed internal spline of high-speed gear static friction disc, high-speed gear piston seat and the transmission gear transmission of planetary gear carrier arrive output gear.
The shell is provided with a low-speed gear hydraulic oil inlet which is communicated to the second closed cavity.
The novel gearbox of wheel type excavator still including setting up plunger pump in the casing, the casing is provided with plunger pump oil outlet and lubricating oil inlet, be provided with eccentric portion on the output shaft, eccentric portion with the plunger pump linkage, the oil feed end of plunger pump is provided with the check valve, the end of producing oil of plunger pump with plunger pump oil outlet intercommunication, plunger pump oil outlet pass through the pipeline with lubricating oil inlet intercommunication.
After the technical scheme is adopted, the utility model adopts two friction clutches of the normally open type hydraulic high-speed gear clutch mechanism and the normally open type hydraulic low-speed gear clutch mechanism, so that the requirements of no-stop and no-speed-reduction gear shifting can be met, and the high-speed gear and the low-speed gear are respectively controlled, so that the function is more stable; adopt planetary reduction mechanism, compare in traditional multiaxis, the transmission structure of many gears, the structure in the gearbox casing is compacter, is favorable to reducing the volume of gearbox, uses on wheeled excavator, can raise the terrain clearance of frame down, more is applicable to going on the rough road surface, and then improves wheeled excavator's transition efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
the reference numbers illustrate: a housing 1; a low-speed gear hydraulic oil inlet 11; an oil outlet 12 of the plunger pump; a lubricating oil inlet 13; an output shaft 2; an eccentric portion 21; a sun gear 31; the planet wheels 32; the planetary gear shaft 33; the planetary carrier 34; an internal gear 35; a shaft coupling sleeve 4; a transmission gear 5; a high-speed gear hydraulic oil inlet 51; an output gear 6; the high-speed gear static friction plate fixes the internal spline 71; a high-speed gear piston seat 72; a high-speed gear piston 73; high speed set of friction plates 74; a high-speed-shift friction-plate fixed wheel 75; a high-speed gear spring 76; a high-speed gear piston ram 77; a first enclosed cavity 78; a low-speed piston seat 81; a low-speed piston 82; a low-speed spring stop 83; low range friction pack stop 84; a low-speed gear friction plate group 85; a low-speed spring 86; a low-gear piston mandril 87; a second enclosed cavity 88; a plunger pump 9; a one-way valve 10.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
The utility model relates to a novel gearbox of wheeled excavator, including casing 1, pin joint cooperation output shaft 2 on casing 1, set up planetary reduction mechanism in casing 1, be used for installing walking motor input shaft's hub connection cover 4, drive gear 5, output gear 6, the high-speed clutch mechanism that keeps off of open hydraulic pressure and the low-speed clutch mechanism that keeps off of open hydraulic pressure.
The planetary reduction mechanism comprises a sun gear 31, a planetary gear 32, a planetary gear shaft 33, a planetary gear carrier 34 and an internal gear 35 which are arranged in parallel with the output shaft 2, the planetary gear 32 is arranged on the planetary gear carrier 34 through the planetary gear shaft 33 and is simultaneously meshed with the sun gear 31 and the internal gear 35, and the planetary gear carrier 34 is sleeved on the periphery of the sun gear 31 and rotates around the sun gear 31.
The shaft coupling sleeve 4 is disposed outside the housing 1 and is spline-connected to an input end of the sun gear 31.
The transmission gear 5 is arranged at the output end of the planetary speed reducing mechanism, the output gear 6 is arranged on the output shaft 2, and the transmission gear and the output gear are meshed with each other.
Normally open type hydraulic high-speed gear clutch mechanism and planet wheel carrier 34 set up relatively, and normally open type hydraulic low-speed gear clutch mechanism sets up with internal gear 35 relatively, and when normally open type hydraulic high-speed gear clutch mechanism injected hydraulic oil, planetary reduction mechanism's velocity ratio was minimum, and when normally open type hydraulic low-speed gear clutch mechanism injected hydraulic oil, planetary reduction mechanism's velocity ratio was the biggest.
Referring to fig. 1, a specific embodiment of the present invention is shown.
The normally open hydraulic high-speed clutch mechanism comprises a high-speed gear static friction plate fixing internal spline 71 and a high-speed gear piston seat 72 which are rigidly connected with the planet carrier 34, a high-speed gear piston 73, a high-speed gear friction plate group 74, a high-speed gear dynamic friction plate fixing wheel 75 and a high-speed gear spring 76. The high-speed gear piston seat 72 and the high-speed gear piston 73 form a first closed cavity 78; the moving plate of the high-speed gear friction plate group 74 is in splined connection with the sun gear 31 through a high-speed gear moving friction plate fixed wheel 75, and the static plate of the high-speed gear static friction plate group is in splined connection with the high-speed gear static friction plate fixed internal spline 71; the high-speed gear spring 76 is arranged outside the first closed cavity 78 and opposite to the high-speed gear piston 73, and separates the static piece and the moving piece of the high-speed gear friction piece group 74 when the oil pressure of the first closed cavity 78 is zero, and presses the static piece and the moving piece of the high-speed gear friction piece group 74 against the planet carrier 34 when the oil pressure of the first closed cavity 78 is not zero, and the sun gear 31, the planet carrier 34, the high-speed gear static friction piece fixing internal spline 71, the high-speed gear dynamic friction piece fixing wheel 75 and the high-speed gear piston seat 72 are all locked to rotate together, so that the output rotating speed with the motor input shaft speed ratio of one is realized.
The transmission gear 5 is rigidly connected to the high-speed gear piston seat 72.
A high-speed-stage piston rod 77 is provided between the high-speed-stage piston 73 and the high-speed-stage spring 76.
The transmission gear 5 is provided with a high-speed gear hydraulic oil inlet 51, and the high-speed gear hydraulic oil inlet 51 is communicated to the first closed cavity 78.
The normally open hydraulic low-speed clutch mechanism includes a low-speed piston seat 81, a low-speed piston 82, a low-speed spring retainer 83, a low-speed friction plate set retainer 84, a low-speed friction plate set 85, and a low-speed spring 86. The low-speed piston seat 81 and the low-speed piston 82 form a second closed cavity 88; the moving plate of the low-speed gear friction plate group 85 is fixed on the low-speed gear piston seat 81; the low-speed gear friction plate group 85 and the low-speed gear friction plate group baffle 84 are arranged oppositely, the low-speed gear friction plate group baffle 84 is fixed on the low-speed gear piston seat 81, and a stator of the low-speed gear friction plate group baffle 84 is in splined connection with the internal gear 35; the low-speed gear spring 86 and the low-speed gear spring baffle 83 are arranged oppositely, the low-speed gear spring baffle 83 is pushed when the oil pressure of the second closed cavity 88 is zero so as to separate a stator and a rotor of the low-speed gear friction plate group 85, the low-speed gear piston 82 pushes the stator and the rotor of the low-speed gear friction plate group 85 to press the low-speed gear friction plate group baffle 84 when the oil pressure of the second closed cavity 88 is not zero, the internal gear 35 is fixed relative to the low-speed gear piston seat 81, the input rotating speed of the sun gear 31 is output by the planet carrier 34 after being reduced by the planetary gear speed reduction mechanism, and the input rotating speed is transmitted to the output gear 6 through the high-speed gear static plate fixed internal spline 71 fixed on the planet carrier 34, the high-.
A low-speed piston rod 87 is provided between the low-speed piston 82 and the low-speed spring 86.
The housing 1 is provided with a low-speed hydraulic oil inlet 11, and the low-speed hydraulic oil inlet 11 is communicated to the second closed cavity 88.
The utility model discloses still including setting up plunger pump 9 in casing 1, casing 1 is provided with plunger pump oil outlet 12 and lubricating oil inlet 13, is provided with eccentric portion 21 on the output shaft 2, and eccentric portion 21 and the linkage of plunger pump 9, the oil feed end of plunger pump 9 are provided with check valve 10, and the end of producing oil of plunger pump 9 and plunger pump oil outlet 12 intercommunication, plunger pump oil outlet 12 pass through pipeline and lubricating oil inlet 13 intercommunication. When the output shaft 2 rotates, the eccentric part 21 on the output shaft drives the plunger of the plunger pump 9 to move up and down, when the plunger moves up, lubricating oil is sucked in through the one-way valve 10, when the plunger moves down, the one-way valve 10 is closed, the lubricating oil is pressed out of the oil outlet 12 of the plunger pump, and circularly flows into the lubricating oil inlet 13 through a pipeline, and each oil duct flows to a gear, a bearing, a friction plate and the like in the gearbox for lubrication, so that the lubricating oil in the gearbox does not need extra power in the circulating process, a lubricating oil circulating mechanism is not needed, and the volume of the gearbox can be further reduced.
The utility model discloses a theory of operation does:
firstly, when hydraulic oil passes through a low-speed gear hydraulic oil inlet 11 to a low-speed gear piston seat 81 to push a low-speed gear piston 82 to push a low-speed gear friction plate group 85 to the left, a stator plate and a rotor plate in the low-speed gear friction plate group 85 are pressed, an internal gear 35 connected with a stator plate spline is locked and fixed, then a sun gear 31 drives a planet carrier 34 to decelerate and rotate, the speed ratio is the largest, a high-speed gear static friction plate fixed internal spline 71 rigidly connected with the planet carrier 34, a high-speed gear piston seat 72 and a transmission gear 5 rotate together and also drive an output gear 6 to rotate, at the moment, because the hydraulic oil does not flow through a high-speed gear hydraulic oil inlet 51, the hydraulic oil pressure in a first closed cavity 78 formed by the high-speed gear piston seat 72 and a high-speed gear piston 73 is zero, a high-speed gear spring 76 pushes a high-speed gear piston mandril 77 to push the high-speed gear piston 73 to, the rotation of the sun gear 31 drives only the high-speed stopper friction plate fixing wheel 75 spline-coupled to the sun gear 31 and the high-speed stopper friction plate 74 spline-coupled to the high-speed stopper friction plate fixing wheel 75, and the stator in the high-speed stopper friction plate 74 is not directly affected by the rotation of the sun gear 31.
Secondly, when hydraulic oil passes through a high-speed gear hydraulic oil inlet 51 and passes through the transmission gear 5 to the high-speed gear piston seat 72 to push the high-speed gear piston 73 to right push the high-speed gear friction plate group 74, so that a static plate and a dynamic plate in the high-speed gear friction plate group 74 are pressed, a high-speed gear static friction plate fixed internal spline 71 connected with the static plate spline is locked and fixed through a high-speed gear dynamic friction plate fixed wheel 75 connected with the dynamic plate spline and a sun wheel 31 connected with the high-speed gear dynamic friction plate fixed wheel 75 in a spline mode, because the high-speed gear static friction plate fixed internal spline 71 is rigidly connected with the high-speed gear piston seat 72 and the transmission gear 5, the sun wheel 31 drives the transmission gear 5 to rotate, the speed ratio is minimum 1, then the output gear 6 and the output shaft 2 are driven to rotate, and at the time, because hydraulic oil does not flow through the low-speed gear hydraulic oil inlet 11, the hydraulic force in a second closed cavity, the low-speed gear spring 86 pushes the low-speed gear spring baffle 83 to jack the low-speed gear piston 82 to the right, so that the static piece and the moving piece in the low-speed gear friction piece group 85 are separated, the sun gear 31 rotates to drive the planet gear 32 to rotate, and the planet gear 32 rotates to drive the inner gear 35 to rotate freely, so that the rotation of the planet gear carrier 34 is not influenced.
Through the scheme, the utility model adopts two friction clutches of the normally open type hydraulic high-speed gear clutch mechanism and the normally open type hydraulic low-speed gear clutch mechanism, can meet the requirements of no-stop and no-speed-reduction gear shifting, and the two friction clutches respectively control the high-speed gear and the low-speed gear, so that the function is more stable; adopt planetary reduction mechanism, compare in traditional multiaxis, the transmission structure of many gears, the structure in the gearbox casing 1 is compacter, is favorable to reducing the volume of gearbox, uses on wheeled excavator, can raise the terrain clearance of frame down, more is applicable to going on the rough road surface, and then improves wheeled excavator's transition efficiency.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.
Claims (8)
1. The utility model provides a gearbox of novel wheeled excavator which characterized in that: the transmission device comprises a shell, an output shaft which is in pin joint fit with the shell, a planetary speed reducing mechanism arranged in the shell, a shaft connecting sleeve for mounting an input shaft of a walking motor, a transmission gear, an output gear, a normally-open type hydraulic high-speed gear clutch mechanism and a normally-open type hydraulic low-speed gear clutch mechanism;
the planetary reduction mechanism comprises a sun gear, a planetary gear shaft, a planetary gear carrier and an internal gear which are arranged in parallel with the output shaft, the planetary gear is arranged on the planetary gear carrier through the planetary gear shaft and is simultaneously meshed with the sun gear and the internal gear, and the planetary gear carrier is sleeved on the periphery of the sun gear and rotates around the sun gear;
the shaft connecting sleeve is arranged outside the shell and is connected with the input end of the sun wheel;
the transmission gear is arranged at the output end of the planetary reduction mechanism, the output gear is arranged on the output shaft, and the transmission gear and the output gear are meshed with each other;
normally open hydraulic pressure high-speed clutch mechanism with planet wheel carrier sets up relatively, normally open hydraulic pressure low-speed gear clutch mechanism with the internal gear sets up relatively, works as when normally open hydraulic pressure high-speed gear clutch mechanism pours into hydraulic oil into, planetary reduction mechanism's velocity ratio is minimum, works as when normally open hydraulic pressure low-speed gear clutch mechanism pours into hydraulic oil into, planetary reduction mechanism's velocity ratio is the biggest.
2. The gearbox of a novel wheeled excavator of claim 1 wherein:
the normally-open hydraulic high-speed gear clutch mechanism comprises a high-speed gear static friction plate fixed internal spline and a high-speed gear piston seat which are connected with the planet carrier, a high-speed gear piston, a high-speed gear friction plate group, a high-speed gear dynamic friction plate fixed wheel and a high-speed gear spring;
the high-speed gear piston seat and the high-speed gear piston form a first closed cavity; the moving plate of the high-speed gear friction plate set is connected with the sun gear through the high-speed gear moving friction plate fixed wheel, and the static plate of the high-speed gear static friction plate set is connected with the high-speed gear static friction plate fixed internal spline; the high-speed gear spring is arranged outside the first closed cavity and opposite to the high-speed gear piston, the stator and the rotor of the high-speed gear friction sheet set are separated when the oil pressure of the first closed cavity is zero, the stator and the rotor of the high-speed gear friction sheet set are tightly pressed with the planet wheel carrier when the oil pressure of the first closed cavity is not zero, and the sun wheel, the planet wheel carrier, the high-speed gear static friction sheet fixed internal spline, the high-speed gear dynamic friction sheet fixed wheel and the high-speed gear piston seat are all locked to rotate together, so that the output rotating speed with the motor input shaft speed ratio of one is realized.
3. The gearbox of a novel wheeled excavator of claim 2 wherein:
the transmission gear is connected with the high-speed gear piston seat.
4. The gearbox of a novel wheeled excavator of claim 2 wherein:
and a high-speed gear piston ejector rod is arranged between the high-speed gear piston and the high-speed gear spring.
5. The gearbox of a novel wheeled excavator of claim 2 wherein:
the transmission gear is provided with a high-speed-stop hydraulic oil inlet which is communicated to the first closed cavity.
6. The gearbox of a novel wheeled excavator of claim 2 wherein:
the normally-open hydraulic low-speed clutch mechanism comprises a low-speed piston seat, a low-speed piston, a low-speed spring baffle, a low-speed friction plate group and a low-speed spring;
the low-speed piston seat and the low-speed piston form a second closed cavity; the low-speed gear friction plate group is fixed on the low-speed gear piston seat; the low-speed gear friction plate set is opposite to the low-speed gear friction plate set baffle, the low-speed gear friction plate set baffle is fixed on the low-speed gear piston seat, and a stator of the low-speed gear friction plate set baffle is connected with the internal gear; the low-speed gear spring with low-speed gear spring baffle sets up relatively, and the second closed cavity oil pressure promotes when zero low-speed gear spring baffle so that low-speed gear friction disc's stator and rotor separate when the second closed cavity oil pressure is not zero the low-speed gear piston promotes low-speed gear friction disc's stator and rotor compress tightly low-speed gear friction disc baffle makes the internal gear for the low-speed gear piston seat is motionless, sun gear input rotational speed warp planetary reduction mechanism is by behind the speed reduction planet wheel carrier output, through fixing the fixed internal spline of high-speed gear static friction disc, high-speed gear piston seat and the transmission gear transmission of planet wheel carrier arrive output gear.
7. The gearbox of a novel wheeled excavator of claim 6 wherein:
the shell is provided with a low-speed gear hydraulic oil inlet which is communicated to the second closed cavity.
8. The gearbox of a novel wheeled excavator of claim 1 wherein:
the oil outlet end of the plunger pump is communicated with the oil outlet of the plunger pump, and the oil outlet of the plunger pump is communicated with the lubricating oil inlet through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020932621.4U CN212616159U (en) | 2020-05-28 | 2020-05-28 | Novel gearbox of wheel type excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020932621.4U CN212616159U (en) | 2020-05-28 | 2020-05-28 | Novel gearbox of wheel type excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212616159U true CN212616159U (en) | 2021-02-26 |
Family
ID=74749601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020932621.4U Active CN212616159U (en) | 2020-05-28 | 2020-05-28 | Novel gearbox of wheel type excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212616159U (en) |
-
2020
- 2020-05-28 CN CN202020932621.4U patent/CN212616159U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111536214A (en) | Novel gearbox of wheel type excavator | |
| CN102221076B (en) | Multi-gear planet type hydraulic transmission driving mechanism | |
| CN202203359U (en) | Multi-gear planet type hydraulic gearbox transmission mechanism | |
| CN102673369A (en) | Power transmission apparatus for hybrid vehicle | |
| CN201342939Y (en) | Driving axle for counter balanced forklift truck | |
| CN103407435A (en) | Hydraulic control type device capable of eliminating pumping loss and improving low-speed performance of hydraulic retarder | |
| CN104329433B (en) | Double-flow transmission gearbox for hydraulic machine of tractor | |
| CN206234335U (en) | Working truck hydraulic machinery is combined continuously variable transmission device | |
| CN206571931U (en) | A kind of Light-duty Vehicle Hydrodynamic transmission | |
| CN107327556A (en) | A kind of two grades of planetary gears gearbox drive axle system and method | |
| CN107091305B (en) | Planetary gear gearbox for electric automobile | |
| CN212616159U (en) | Novel gearbox of wheel type excavator | |
| CN1281799A (en) | Energy-storing power-taking driving device for automobile | |
| CN206049355U (en) | A kind of automatic speed derailleur for electric vehicle | |
| CN202091447U (en) | Dual-speed planetary walking speed reducer | |
| CN202674221U (en) | Six-gear planetary type hydrodynamic drive device | |
| CN106678326A (en) | Hydrodynamic transmission for light vehicle | |
| CN103303116A (en) | Single-motor power-split coupled transmission system | |
| CN110758083A (en) | New energy vehicle power system and control method thereof | |
| CN105564227A (en) | Sandwich mechanical hydraulic compound transmission case, and road maintenance truck power control method | |
| CN115355299A (en) | High-low speed full-time four-wheel drive transmission with HST | |
| CN209365888U (en) | A kind of oil electric mixed dynamic loading machine transmission device | |
| CN210003762U (en) | Stepless speed change mechanism of hydraulic driving wheel type excavator | |
| CN108583273B (en) | Integrated two-gear variable-speed electric drive bridge with electronic parking function | |
| CN209309269U (en) | A kind of combined type wheel bridge gearbox |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |