CN108286603A - The upper gear box of excavator - Google Patents
The upper gear box of excavator Download PDFInfo
- Publication number
- CN108286603A CN108286603A CN201810108695.3A CN201810108695A CN108286603A CN 108286603 A CN108286603 A CN 108286603A CN 201810108695 A CN201810108695 A CN 201810108695A CN 108286603 A CN108286603 A CN 108286603A
- Authority
- CN
- China
- Prior art keywords
- oil
- connection
- shell
- storage pool
- seal cover
- 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.)
- Granted
Links
- 239000003921 oil Substances 0.000 claims abstract description 256
- 238000007789 sealing Methods 0.000 claims abstract description 48
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052742 iron Inorganic materials 0.000 claims abstract description 23
- 230000001050 lubricating effect Effects 0.000 claims abstract description 14
- 239000010687 lubricating oil Substances 0.000 claims abstract description 10
- 239000002828 fuel tank Substances 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 4
- 239000012208 gear oil Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 5
- 208000035212 Ring chromosome 19 syndrome Diseases 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 9
- 239000011148 porous material Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000005574 cross-species transmission Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 108090000565 Capsid Proteins Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- 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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
-
- 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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
- F16H57/0452—Oil pans
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of upper gear box of excavator, including shell, power input assembly and power output assembly, power output assembly includes output shaft, lower bearing, driven gear, and oil sealing combination, chip guard and oil seal cover etc. below driven gear.The inner fovea part of oil seal cover is convexly equipped with oil scraper ring, and chip guard is covered on the oil scraper ring, and oil sealing combination is covered in oil sealing intracavitary.Concave ring is formed between the inner fovea part and oil scraper ring of oil seal cover, is equipped with the oil storage pool being connected with cavity in shell, oil storage pool is connected with external lubricating system.The oil level height of oil storage pool prevents the oil return for being mixed with iron filings from flowing into oil sealing intracavitary less than the level height of the upper surface of oil scraper ring.Upper gear box using the present invention, the iron filings in shell can be fallen in cavity, and the impurity such as the iron filings in cavity are taken away in lubricating oil return to oil storage pool, prevent oil sealing combination from being damaged by iron filings, or even cause oil leak.
Description
Technical field
The present invention relates to excavator transmission systems, more particularly to a kind of upper gear box of excavator.
Background technology
The transmission system of excavator is made of the part such as gearbox and upper gear box, and engine output shaft accesses gearbox,
Gearbox transmission is connected to upper gear box, and upper gear box delivers power to lower transmission case, and lower transmission case passes through its front and back output
Axis is docked with front-rear axle deceleration assembly, delivers power to front and back drive axle.
Upper gear box includes shell, power input assembly and power output assembly.Wherein, power input assembly includes corresponding
The components such as the input shaft, driving gear, bearing block, bearing, spline housing and the spacer that are assembled together form；Power output assembly packet
Include the components such as the output shaft being accordingly assembled together, driven gear, lower bearing, oil sealing and flange.Wherein, oil sealing is located at driven tooth
The lower section of wheel.The defect of traditional power output assembly is：The impurity such as the iron filings in shell can driven gear and lower bearing it
Between fall, remain in above oil sealing, cause iron filings impurity to be not easily cleaned so that the lower oil sealing of damage.
In traditional lubricating system, oil sealing is immersed in oil return (i.e. lubricating oil), when oil sealing is damaged due to iron filings etc.
Bad when, can cause oil seepage, cause driving gear and driven gear and the lubrication of corresponding bearing to be not enough, be easy to make
At damage, the use cost of component is increased.
Invention content
In view of this, the purpose of the present invention is to provide a kind of upper gear box of excavator, it have it is reasonable in design,
It can prevent lubricating system from damaging, solve Leakage, extend the service life of upper gear box.
In order to achieve the above objectives, technical scheme of the present invention：
A kind of upper gear box of excavator, including shell, power input assembly and power output assembly, the power output
Assembly includes output shaft, lower bearing and driven gear, and for the lower bearing sleeve together on the driven gear, the power output is total
At further including oil sealing combination, chip guard and oil seal cover, the chip guard and oil sealing combination are sequentially arranged in the driven gear
And the underface of the lower bearing, axial hole is offered on the oil seal cover, which is located at concentric with the output shaft
On line, the one end of the output shaft is sleeved on the oil seal cover by the axial hole, the oil seal cover under the shell
Portion is fixed together；
The oil seal cover has inner fovea part, is convexly equipped with oil scraper ring on the bottom wall of the inner fovea part, the chip guard is covered on institute
It states on oil scraper ring, also, forms oil sealing chamber between the periphery wall of the output shaft and the oil scraper ring, the oil sealing combination is embedded in
In the oil sealing intracavitary；
Cavity, the enclosure interior are formed between the peripheral wall of the inner fovea part of the oil seal cover and the periphery wall of the oil scraper ring
Equipped with the oil storage pool being connected with the cavity, the oil storage pool is connected with external lubricating system, the external lubricating system packet
The fuel tank for storing lubricating oil is included, the fuel tank is located at outside the shell, and the oil level height of the oil storage pool is less than described
The level height of the upper surface of oil scraper ring.
Further, the external lubricating system further includes oil return pipe, enters oil pipe and the oil for extracting lubricating oil
Pump, the oil pump be installed on it is described enter oil pipe pipeline on, it is described enter oil pipe one end be equipped with the first oil connection, the other end is set
There is the second oil connection, first oil connection, which is connected, is connected to the bottom of the fuel tank, and second oil connection connects
It is connected to the upper shell of the shell；
One end of the oil return pipe is equipped with third oil connection, and the other end of the oil return pipe is equipped with the 4th oil connection,
The third oil connection is fixed on the bottom of the shell, and the oil return pipe passes through the third oil connection and the oil storage
Pond is connected connection, and the other end of the oil return pipe is connected by the 4th oil connection is connected to the top of the fuel tank
Portion, the mounting height of the third oil connection are less than the level height of the upper surface of the oil scraper ring, and the 4th oil pipe connects
The mounting height of head is less than the mounting height of the third oil connection.
Further, the inside of the fuel tank is divided into settling zone and filtering area, between the settling zone and the filtering area
Every equipped with filter screen, the bottom of the settling zone of the fuel tank is equipped with the magnetic block for magnetic iron filings.
Further, the oil pump uses plunger pump or double-direction gearpump.
Further, the peripheral wall of the oil seal cover is at least opened up along the radial direction of the oil seal cover there are two oil return hole,
The cavity, which is connected by the oil return hole with the oil storage pool, to be connect.
Further, the oil storage pool is located at the lower section of the input shaft, while the oil storage pool is located at the lower bearing
With the lower section of the driven gear.
Further, the power output assembly further includes flange, end of the flange sleeve together in the output shaft.
Further, the lower bearing is taper roll bearing.
After adopting the above technical scheme, a kind of upper gear box of excavator of the present invention, has the advantages that：First,
Iron filings in shell can be fallen in cavity, and chip guard can prevent the iron filings in shell from falling into and be piled up in the upper of oil sealing combination
Side.Secondly, it is equipped with the oil storage pool being connected with cavity in shell, oil storage pool is connected with external lubricating system, can be in time to oil return
Carry out timely discharge processing, prevent from being mixed with the oil return liquid levels of iron filings higher than the upper surface of oil scraper ring level height and spill-over
Flow into oil sealing intracavitary.The impurity such as the iron filings in cavity are taken away in lubricating oil return to oil storage pool.It is seen in synthesis, upload of the invention
Dynamic case can avoid oil sealing combination and be soaked in while ensureing that the components such as gear and bearing obtain external lubricating system sufficient lubrication
In oil return, or even the occurrence of damaged by iron filings, can avoid causing oil leak.In this way, the service life of upper gear box increases
Add.
Description of the drawings
Fig. 1 is the sectional view of the present invention.
In figure：
Gearbox-a；Shell -01；
Driving gear -02；Input shaft -03；
Connecting plate -04；Round nut -05；
Oil sealing -06；Bearing block -07；
Bearing -08；Driven gear -09；
Upper bearing (metal) -10；Oil sealing combination -11；
Oil seal cover -12；Chip guard -13；
Flange -14；Head cover -15；
Bearing platen -16；Output shaft -17；
Lower bearing -18；Oil scraper ring -19；
Oil sealing chamber -20；Cavity -21；
Oil storage pool -22；Oil return hole -23；
Oil pump -24；Oil return pipe -25；
Enter oil pipe -26；Fuel tank -27；
First oil connection -28；Second oil connection -29；
Third oil connection -30；4th oil connection -31；
Settling zone -32；Filtering area -33；
Filter screen -34.
Specific implementation mode
In order to further explain the technical solution of the present invention, being explained in detail the present invention below by specific embodiment
It states.
The transmission system of excavator is made of the part such as gearbox a and upper gear box, and engine output shaft accesses gearbox
A, gearbox a are sequentially connected in upper gear box, and upper gear box delivers power to lower transmission case, and lower transmission case is front and back defeated by it
Shaft is docked with front-rear axle deceleration assembly, delivers power to front and back drive axle.
A kind of upper gear box of excavator of the present invention, including shell 01, power input assembly and power output assembly.Shell
01 is closed structure, has upper shell, lower housing, left shell, right shell body, procapsid and the back casing accordingly to link together.
The inside of shell 01 is also every equipped with interval portion.Using orientation shown in FIG. 1 as reference azimuth, the upper/lower terminal of left shell distinguishes phase
It should be connected on upper shell and interval portion.The upper/lower terminal of right shell body is accordingly connected on upper shell and lower housing respectively, interval
The left and right both ends in portion are accordingly connected on left shell and right shell body respectively, and the right end in interval portion is connected in right shell body
Lower part.
It includes driving gear 02, input shaft 03, connecting plate 04 and round nut 05 that power, which inputs assembly, is set in driving gear 02
It is useful for the axis hole of fitting input shaft 03, driving gear 02 is linked in by axis hole on input shaft 03, and round nut 05 is fastened on master
On the terminal part of moving gear 02, the upper/lower terminal of connecting plate 04 is fixed on respectively on the upper shell and lower housing of shell 01,
Input shaft 03 is rotatably mounted to by connecting plate 04 on shell 01.It is located at connecting plate 04 and active on input shaft 03
Position between the end of gear 02 is equipped with oil sealing 06.Using orientation shown in FIG. 1 as reference azimuth, the left shell of shell 01 opens up
There is the left central aperture with 02 coaxial inner conductor of driving gear, bearing block 07, bearing block 07 and active are fixed in left central aperture fitting
Bearing 08 is sheathed between gear 02.
Power output assembly includes output shaft 17, upper bearing (metal) 10, head cover 15, driven gear 09, lower bearing 18, oil sealing combination
11, chip guard 13, oil seal cover 12 and flange 14.Driving gear 02 and driven gear 09 are the bevel gear being meshed.Lower bearing 18
For taper roll bearing.The upper shell of shell 01 offers medium pore, and the lower housing of shell 01 offers lower medium pore, shell
01 interval portion offers central perforation, and central perforation, upper medium pore and lower medium pore are located at output shaft 17 concentric respectively
On line.Head cover 15 is sleeved on medium pore, and head cover 15 is in disk shape, is equipped with indent blind hole.Head cover 15 is bolted on
On the upper shell of shell 01.Bearing platen 16 is embedded in the indent blind hole of head cover 15.The hole wall of the indent blind hole of head cover 15 with
Upper bearing (metal) 10 is equipped between the top outer wall of output shaft 17, also, upper bearing (metal) 10 is matched with bearing platen 16.Head cover 15 has
There is the position-limiting action for preventing output shaft 17 from play occurring upwards.Lower medium pore is located at driven gear 09 on coaxial inner conductor.Oil sealing
Lid 12 is sleeved on lower medium pore, and is locked together by the lower housing of bolt and shell 01.
Lower bearing 18 is sleeved between driven gear 09 and the hole wall of central perforation.Chip guard 13, oil sealing combination 11 and convex
Edge 14 is sequentially arranged in the underface of driven gear 09.Axial hole is offered on oil seal cover 12, which is located at output shaft 17
On coaxial inner conductor.The one end of output shaft 17 is sleeved on oil seal cover 12 by the axial hole, and flange 14 is sleeved on 17 end of output shaft
On the spline in portion, and locked together by bolt and output shaft 17.The hole wall of the axial hole of flange 14 and oil seal cover 12 it
Between there are gaps, flange 14 to be rotated with output shaft 17.
Oil seal cover 12 has inner fovea part, is convexly equipped with oil scraper ring 19 on the bottom wall of the inner fovea part, oil scraper ring 19 is along oil seal cover 12
Axial direction be extended, i.e., oil seal cover 12 be in twin nuclei.Chip guard 13 has cover edge, cover edge and 19 phase of oil scraper ring
To match, chip guard 13 is covered on oil scraper ring 19, also, oil sealing chamber 20 is formed between the periphery wall of output shaft 17 and oil scraper ring 19,
Oil sealing combination 11 is in oil sealing chamber 20.Oil sealing combination 11 includes upper oil sealing unit and lower oil sealing unit.Upper oil sealing unit master
It is used for dust-proof, lower oil sealing unit is mainly used for oil sealing.Oil sealing combination 11 is compared to conventionally used oil sealing unit, sealing
Property is more preferable, can prevent oil leak situation.Oil sealing combination 11 is lubricated using lubricating grease.The peripheral wall of the inner fovea part of oil seal cover 12
Cavity 21 is formed between the periphery wall of oil scraper ring 19.Iron filings in shell 01 can be fallen between driven gear 09 and lower bearing
Into cavity 21.Chip guard 13 can be used for preventing the iron filings etc. in shell 01 from falling in oil sealing chamber 20, and then prevent oil sealing group
11 are closed by damages such as iron filings, avoids that oil leak situation occurs.
Shell 01 is internally provided with the oil storage pool 22 being connected with cavity 21.Oil storage pool 22 is by the right side of connecting plate 04
The left side of the right shell body of shell 01 is extended to, and oil storage pool 22 is located at the lower section of input shaft 03, while oil storage pool 22 is located at
The lower section of lower bearing 18 and driven gear 09.The peripheral wall of oil seal cover 12 offers oil return hole 23 along the radial direction of oil seal cover 12.
Oil return hole 23 is through-hole.Oil return hole 23 can open up a plurality of according to actually required at least provided with 2.Cavity 21 passes through oil return hole
23 are connected with oil storage pool 22 connect.Oil return hole 23 is convenient for the oil return being temporarily stored into oil storage pool 22 to enter cavity by oil return hole 23
In 21, iron filings are mixed into oil return, and further, the oil return for being mixed with iron filings is flowed out to by oil return hole 23 in oil storage pool 22, and band rings off
Fall within the iron filings in cavity 21.It should be noted that the oil level height of oil storage pool 22 is consistently lower than the upper surface of oil scraper ring 19
Level height.
Oil storage pool 22 is connected with external lubricating system.External lubricating system includes oil pump 24, and oil return pipe 25 enters 26 He of oil pipe
Fuel tank 27.Fuel tank 27 is located at outside shell 01, for storing lubricating oil.Oil pump 24 is secured by bolts on head cover 15, i.e., fixed
In on shell 01, oil pump 24 is located at outside shell 01.Oil pump 24 is installed on the pipeline of oil pipe 26, is used for lubricating oil by low level
It extracts to a high position.The one end for entering oil pipe 26 is equipped with the first oil connection 28, and the other end is equipped with the second oil connection 29.First oil pipe
Connector 28, which is connected, is connected to the bottom of fuel tank 27, and the second oil connection 29 is connected to the upper shell of shell 01, is in shell 01
The power transmissions associated components such as bearing, gear enough lubricating oil is provided, to reduce the frictional resistance between component, protect
Working efficiency is demonstrate,proved, the service life of upper gear box especially associated components is improved.One end of oil return pipe 25 connects equipped with third oil pipe
First 30, the other end of oil return pipe 25 is equipped with the 4th oil connection 31.Third oil connection 30 is fixed on the right shell body of shell 01
Bottom.Oil return pipe 25, which is connected by third oil connection 30 with oil storage pool 22, to be connect.The other end of oil return pipe 25 passes through the 4th
Oil connection 31, which is connected, is connected to the top of fuel tank 27.The mounting height of third oil connection 30 is less than the upper end of oil scraper ring 19
The level height in face is convenient for oil return, and the oil level height of oil storage pool 22 is prevented to be higher than the level height of the upper surface of oil scraper ring 19,
Oil return iron filings spill-over is caused to flow into oil sealing chamber 20, damage oil sealing combination 11, or even cause oil leak.The peace of 4th oil connection 31
Dress height is less than the mounting height of third oil connection 30, is convenient for oil return.It should be noted that in the unit interval, enter oil pipe 26
Enter oil mass be less than oil return pipe 25 recirculating oil quantity, can prevent in this way oil storage pool 22 oil return occur spill-over situation.
Further, the inside of fuel tank 27 is divided into settling zone 32 and filtering area 33, and settling zone 31 is located at the left side of fuel tank,
Filtering area 33 is located at the right side of fuel tank.Settling zone 32 is equipped at intervals with filter screen 34 with filtering area 33, for filtering iron filings etc.
Impurity.4th oil connection 31 is installed on the position of corresponding settling zone 32, and the first oil connection 28 is installed on corresponding filtering area 33
Position.The bottom of the settling zone of fuel tank 27 is equipped with magnetic block, the iron filings that can be used in magnetic oil return.
Further, oil pump 24 uses plunger pump or double-direction gearpump.
It should be noted that in the present invention, input shaft 03 is the axis that power enters speed changer, and power is from engine through input
Axis enters speed changer a, then is imparted power to driven gear 09 with the driving gear 04 on moving axis by input shaft 03 and driven defeated
Shaft 17 rotates, and final excavator may be implemented to move forward or back.
The product form and style of above-described embodiment and attached drawing and the non-limiting present invention, any technical field it is common
The appropriate changes or modifications that technical staff does it all should be regarded as the patent category for not departing from the present invention.
Claims (8)
1. a kind of upper gear box of excavator, including shell, power input assembly and power output assembly, the power output are total
At including output shaft, lower bearing and driven gear, the lower bearing sleeve is together on the driven gear, it is characterised in that：It is described
Power output assembly further includes oil sealing combination, chip guard and oil seal cover, and the chip guard and oil sealing combination are sequentially arranged in institute
The underface of driven gear and the lower bearing is stated, axial hole is offered on the oil seal cover, the axial hole and the output shaft
On coaxial inner conductor, the one end of the output shaft is sleeved on the oil seal cover, the oil seal cover and institute by the axial hole
The lower part for stating shell is fixed together；
The oil seal cover has inner fovea part, is convexly equipped with oil scraper ring on the bottom wall of the inner fovea part, the chip guard is covered on the gear
On oil ring, also, oil sealing chamber is formed between the periphery wall of the output shaft and the oil scraper ring, the oil sealing combination is flush-mounted in institute
State oil sealing intracavitary；
Cavity is formed between the peripheral wall of the inner fovea part of the oil seal cover and the periphery wall of the oil scraper ring, the enclosure interior is equipped with
The oil storage pool being connected with the cavity, the oil storage pool are connected with external lubricating system, and the external lubricating system includes using
In the fuel tank of storage lubricating oil, the fuel tank is located at outside the shell, and the oil level height of the oil storage pool is less than gear oil
The level height of the upper surface of ring.
2. the upper gear box of excavator according to claim 1, it is characterised in that：The external lubricating system further includes back
Oil pipe enters oil pipe and the oil pump for extracting lubricating oil, the oil pump be installed on it is described enter oil pipe pipeline on, it is described enter
One end of oil pipe is equipped with the first oil connection, and the other end is equipped with the second oil connection, and first oil connection is connected connection
In the bottom of the fuel tank, second oil connection is connected to the upper shell of the shell；
One end of the oil return pipe is equipped with third oil connection, and the other end of the oil return pipe is equipped with the 4th oil connection, described
Third oil connection is fixed on the bottom of the shell, and the oil return pipe passes through the third oil connection and the oil storage pool phase
Connection connection, the other end of the oil return pipe is connected by the 4th oil connection is connected to the top of the fuel tank, institute
State the level height of the mounting height of third oil connection less than the upper surface of the oil scraper ring, the peace of the 4th oil connection
Dress height is less than the mounting height of the third oil connection.
3. the upper gear box of excavator according to claim 2, it is characterised in that：The inside of the fuel tank is divided into settling zone
And filtering area, the filter screen that is equipped at intervals with of the settling zone and the filtering area, the bottom of the settling zone of the fuel tank, which is equipped with, to be used
In the magnetic block of magnetic iron filings.
4. the upper gear box of excavator according to claim 2 or 3, it is characterised in that：The oil pump using plunger pump or
Person's double-direction gearpump.
5. the upper gear box of excavator according to claim 1, it is characterised in that：The peripheral wall of the oil seal cover is along the oil
The radial direction of capping is at least opened up there are two oil return hole, and the cavity is connected with the oil storage pool by the oil return hole and is led to
It connects.
6. the upper gear box of excavator according to claim 1, it is characterised in that：The oil storage pool is located at the input shaft
Lower section, while the oil storage pool is located at the lower section of the lower bearing and the driven gear.
7. the upper gear box of excavator according to claim 1, it is characterised in that：The power output assembly further includes convex
Edge, end of the flange sleeve together in the output shaft.
8. the upper gear box of excavator according to claim 1, it is characterised in that：The lower bearing is taper roller axis
It holds.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011314439.3A CN112324889B (en) | 2018-02-02 | 2018-02-02 | Oil seal cover and power output assembly for transmission case on excavator |
| CN201810108695.3A CN108286603B (en) | 2018-02-02 | 2018-02-02 | Upper transmission case of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810108695.3A CN108286603B (en) | 2018-02-02 | 2018-02-02 | Upper transmission case of excavator |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011314439.3A Division CN112324889B (en) | 2018-02-02 | 2018-02-02 | Oil seal cover and power output assembly for transmission case on excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108286603A true CN108286603A (en) | 2018-07-17 |
| CN108286603B CN108286603B (en) | 2024-04-16 |
Family
ID=62836452
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810108695.3A Active CN108286603B (en) | 2018-02-02 | 2018-02-02 | Upper transmission case of excavator |
| CN202011314439.3A Active CN112324889B (en) | 2018-02-02 | 2018-02-02 | Oil seal cover and power output assembly for transmission case on excavator |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011314439.3A Active CN112324889B (en) | 2018-02-02 | 2018-02-02 | Oil seal cover and power output assembly for transmission case on excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108286603B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324889A (en) * | 2018-02-02 | 2021-02-05 | 福建省晋江市科华汽配有限公司 | Oil seal cover and power output assembly for transmission case on excavator |
| US11365766B2 (en) * | 2019-04-24 | 2022-06-21 | Magna powertrain gmbh & co kg | Protective covering |
| CN118257847A (en) * | 2024-05-31 | 2024-06-28 | 江苏苏之星减速机有限公司 | Rotational speed torque conversion equipment with anti-sticking dead structure |
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| JPH0960711A (en) * | 1995-08-28 | 1997-03-04 | Shin Caterpillar Mitsubishi Ltd | Lubricating gear device for epicyclic gear type speed reducer |
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| JP2010116967A (en) * | 2008-11-12 | 2010-05-27 | Univance Corp | Driving force distributing device |
| JP2010121707A (en) * | 2008-11-19 | 2010-06-03 | Tsubaki Emerson Co | Oil leakage preventive structure of hollow output shaft reduction gear |
| CN102261429A (en) * | 2011-04-28 | 2011-11-30 | 晋江市连盛液压机械有限公司 | Upper transmission case of excavator drive system |
| CN202790335U (en) * | 2012-09-14 | 2013-03-13 | 福建省晋江市科华汽配有限公司 | Double-drive transfer case of small excavator |
| CN203272745U (en) * | 2013-04-28 | 2013-11-06 | 福建省晋江市科华汽配有限公司 | Upper transmission case |
| CN207906410U (en) * | 2018-02-02 | 2018-09-25 | 福建省晋江市科华汽配有限公司 | The upper gear box of excavator |
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| JP2017094844A (en) * | 2015-11-20 | 2017-06-01 | Ntn株式会社 | Power transmission device for vehicle |
| CN207906406U (en) * | 2018-02-02 | 2018-09-25 | 福建省晋江市科华汽配有限公司 | Novel upper transmission box of excavator |
| CN108286603B (en) * | 2018-02-02 | 2024-04-16 | 福建省晋江市科华汽配有限公司 | Upper transmission case of excavator |
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| JP2010116967A (en) * | 2008-11-12 | 2010-05-27 | Univance Corp | Driving force distributing device |
| JP2010121707A (en) * | 2008-11-19 | 2010-06-03 | Tsubaki Emerson Co | Oil leakage preventive structure of hollow output shaft reduction gear |
| CN102261429A (en) * | 2011-04-28 | 2011-11-30 | 晋江市连盛液压机械有限公司 | Upper transmission case of excavator drive system |
| CN202790335U (en) * | 2012-09-14 | 2013-03-13 | 福建省晋江市科华汽配有限公司 | Double-drive transfer case of small excavator |
| CN203272745U (en) * | 2013-04-28 | 2013-11-06 | 福建省晋江市科华汽配有限公司 | Upper transmission case |
| CN207906410U (en) * | 2018-02-02 | 2018-09-25 | 福建省晋江市科华汽配有限公司 | The upper gear box of excavator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324889A (en) * | 2018-02-02 | 2021-02-05 | 福建省晋江市科华汽配有限公司 | Oil seal cover and power output assembly for transmission case on excavator |
| US11365766B2 (en) * | 2019-04-24 | 2022-06-21 | Magna powertrain gmbh & co kg | Protective covering |
| CN118257847A (en) * | 2024-05-31 | 2024-06-28 | 江苏苏之星减速机有限公司 | Rotational speed torque conversion equipment with anti-sticking dead structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112324889A (en) | 2021-02-05 |
| CN112324889B (en) | 2022-07-22 |
| CN108286603B (en) | 2024-04-16 |
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