CN208252738U - Loading machine gearbox power taking mouth bearing forced lubrication structure - Google Patents
Loading machine gearbox power taking mouth bearing forced lubrication structure Download PDFInfo
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- CN208252738U CN208252738U CN201820755952.8U CN201820755952U CN208252738U CN 208252738 U CN208252738 U CN 208252738U CN 201820755952 U CN201820755952 U CN 201820755952U CN 208252738 U CN208252738 U CN 208252738U
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- speed
- bearing
- drive shaft
- variable pump
- right bearing
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Abstract
The utility model discloses a kind of loading machine gearbox power taking mouth bearing forced lubrication structures, including shell, drive shaft, cabinet, speed-variable pump and spacer ring；Drive shaft installs left and right bearing, and left bearing and housing bore cooperate, and right bearing and box body hole cooperate, thus fixed drive shaft；Spacer ring is installed, and the speed-variable pump on the right side of spacer ring is bonded with merging with casing end face with drive shaft, and speed-variable pump and cabinet is locked by bolt on the right side of right bearing；Speed-variable pump includes cover board, the pump housing and oil sealing, and oil sealing and drive shaft, which cooperate to form speed-variable pump, to be sealed；Oilhole and plug screw are added on the pump housing and cover board, makes to form asphalt channel between oil sealing and right bearing, pressure oil passes through the pump housing and cover board along oilhole and reaches right bearing, and plug screw is by pump housing processing technology hole plug in order to avoid oil leak, the final forced feed lubrication realized to right bearing.The utility model solves the problems, such as that the prior art can not work normally because lack of lubrication causes bearing and speed-variable pump to damage so as to cause gear box hydraulic system pressure deficiency.
Description
Technical field
The utility model relates to a kind of engineering machinery planet row type gearboxes, and in particular to, loading machine gearbox power taking mouth
Structure at ton Wheel type loader transmission case speed-variable pump power taking mouth of bearing forced lubrication structure, especially 5.
Background technique
China's wheel loader is mainly to grow up phase early 1970s, with 5 tons of type loading machines for main artificial delivery
Product, by the development of many years, quality level is continuously improved, and has formed independent product line and industry class.5 tons of wheeled dresses
Carrier aircraft gearbox is cast using planet row type transmission assembly because of the advantage that its maintainability is good, high reliablity and cost performance are high
It will be difficult to be substituted, therefore still occupy the half of the country in market.Power taking mouth structure in the transmission assembly generallys use change
Speed pump provides power, which provides pressure oil for gear box hydraulic system.Structure is generally adopted at the power taking mouth of the prior art
It is formed with by a drive shaft and bearings at both ends, since power taking mouth position is in gearbox top position, bearing is mainly by gear
The splashing of part lubricates.It has the disadvantage that bearing revolving speed is high at power taking mouth, it is big to bear torque, because position of bearings is higher, and splashes
Lubrication is influenced by temperature, revolving speed, oil product, causes bearing lubrication insufficient, bearing damage and speed-variable pump damage occurs, so as to cause
Gear box hydraulic system pressure is insufficient, causes can not work normally.
Summary of the invention
The purpose of the utility model is to provide a kind of structures simply, production is low with maintenance cost, easy to use and reliable efficiently
Loading machine gearbox power taking mouth bearing forced lubrication structure, with solve in the prior art loading machine gearbox power taking mouth bearing because
Lack of lubrication and cause bearing and speed-variable pump to damage, so as to cause gear box hydraulic system pressure is insufficient and can not work normally
Problem.
To achieve the above object, the utility model loading machine gearbox power taking mouth bearing forced lubrication structure include shell,
Left bearing, drive shaft, right bearing, cabinet, cover board, the pump housing, oil sealing, speed-variable pump and spacer ring；Drive shaft the right and left difference
Left bearing and right bearing are filled, left bearing and housing bore cooperate, and right bearing and box body hole cooperate, to realize the fixation of drive shaft；
Spacer ring is installed on the right side of the right bearing, and the speed-variable pump on the right side of spacer ring is bonded with merging with casing end face with drive shaft, and
Speed-variable pump and cabinet are locked by bolt；The speed-variable pump belongs to sub-assembly, is respectively fitted with cover board, the pump housing and oil sealing, oil
Envelope cooperates with drive shaft, is formed and is sealed to speed-variable pump；Oilhole and plug screw are added on the pump housing and cover board on speed-variable pump, makes oil sealing
Asphalt channel is formed between right bearing, pressure oil passes through the pump housing along oilhole and cover board reaches right bearing, and plug screw will be at the pump housing
Machining of oil hole technique hole plug is to avoid oil leak, the final forced feed lubrication realized to right bearing.
In practical work process, since there are the lower pressure oils of pressure at oil sealing, by being processed on the pump housing and cover board
Oilhole, pressure oil is guided to oilhole, to right bearing carry out forced feed lubrication.
The utility model loading machine gearbox power taking mouth bearing forced lubrication structure passes through in prior art loading machine speed change
On the basis of case power taking mouth bearing arrangement, increase oilhole 9 and plug screw 10 on the pump housing 7 and cover board 6 on speed-variable pump 12, have with
Lower technical characterstic and the utility model has the advantages that
1, it by adding oilhole on the speed-variable pump pump housing and cover board, without changing part blank and remaining size, need to only adopt
With numerical control machining center processing i.e. can guarantee two oilholes connect, and with plug screw by processing technology hole plug at the pump housing to avoid leakage
Oil, it is ensured that oil can pass through；
2, speed-variable pump oil sealing position pressure oil is oily mainly from the normal leakage of pump, and forced feed lubrication oil is drawn from oil sealing,
It can reduce the pressure of oil sealing position pressure oil, flow reduced, to reduce the risk of oil sealing oil leak；
3, forced feed lubrication is carried out to bearing at power taking mouth, can be improved the service life of bearing and speed-variable pump, reduce product
Three guarantees expense.
Using above-mentioned loading machine gearbox power taking mouth bearing forced lubrication structure, power taking mouth bearing is able to solve because lubricating not
Foot causes bearing and speed-variable pump to damage, so as to cause gear box hydraulic system pressure is insufficient and the failures such as can not work normally, and
The structure can be improved bearing, speed-variable pump service life, reduce product service on 3-guarantees expense.
Detailed description of the invention
Fig. 1 is the utility model loading machine gearbox power taking mouth bearing forced lubrication structure main cross-sectional schematic diagram.
Appended drawing reference: shell 1, left bearing 2, drive shaft 3, right bearing 4, cabinet 5, cover board 6, the pump housing 7, bolt 8, oilhole 9,
Plug screw 10, oil sealing 11, speed-variable pump 12, spacer ring 13.
Specific embodiment
With reference to the accompanying drawings and detailed description to the utility model loading machine gearbox power taking mouth bearing forced feed lubrication
Structure is described in further detail.
As shown in Figure 1, the utility model loading machine gearbox power taking mouth bearing forced lubrication structure includes shell 1, left axle
Hold 2, drive shaft 3, right bearing 4, cabinet 5, cover board 6, the pump housing 7, oil sealing 11, speed-variable pump 12 and spacer ring 13；The drive shaft 3 or so
Both sides fill left bearing 2 and right bearing 4 respectively, and left bearing 2 and 1 hole of shell cooperate, and right bearing 4 and 5 hole of cabinet cooperate, to realize
The fixation of drive shaft 3；Spacer ring 13 is installed on the right side of the right bearing 4, and the speed-variable pump 12 positioned at 13 right side of spacer ring is matched with drive shaft 3
Merging is bonded with 5 end face of cabinet, and is locked speed-variable pump 12 and cabinet 5 by bolt 8；The speed-variable pump 12 belongs to sub-assembly,
It is respectively fitted with cover board 6, the pump housing 7 and oil sealing 11, oil sealing 11 and drive shaft 3 cooperate, formed and sealed to speed-variable pump 12；In speed-variable pump
Increase oilhole 9 and plug screw 10 on the pump housing 7 and cover board 6 on 12, the oil of 11 position of oil sealing is guided to oilhole 9, pressure oil edge
Oilhole 9 pass through the pump housing 7 and cover board 6 and reach right bearing 4, plug screw 10 is by processing technology hole plug is at the pump housing to avoid oil leak, most
The forced feed lubrication to right bearing 4 is realized eventually.
During the work time, drive shaft 3 rotates, and drives speed-variable pump 12 to rotate, the normal oil suction of speed-variable pump 12, due to oil sealing 11
There is the normal leakage pressure oil of speed-variable pump 12 at place, and pressure oil will be flowed along the oilhole 9 on the pump housing 7 and cover board 6, i.e. in Fig. 1
The flowing of direction shown in arrow, flows to right bearing 4, to realize the forced feed lubrication to oily right bearing 4.
This loading machine gearbox power taking mouth bearing forced lubrication structure, is able to solve power taking mouth bearing and leads because of lack of lubrication
Cause bearing damage, speed-variable pump damage, the failure that can not work normally insufficient so as to cause gear box hydraulic system pressure, the knot
Structure can improve bearing, speed-variable pump service life, while the structure drains pressure oil at oil sealing, can reduce oil sealing oil leak event
Barrier extends oil sealing service life, reduces product service on 3-guarantees expense for enterprise.
Claims (1)
1. a kind of loading machine gearbox power taking mouth bearing forced lubrication structure, it include shell, left bearing, drive shaft, right bearing,
Cabinet, cover board, the pump housing, oil sealing, speed-variable pump and spacer ring；Described drive shaft the right and left fills left bearing and right bearing, left axle respectively
It holds and cooperates with housing bore, right bearing and box body hole cooperate, to realize the fixation of drive shaft；The right bearing right side installation every
Circle, the speed-variable pump on the right side of spacer ring is bonded with merging with casing end face with drive shaft, and passes through bolt for speed-variable pump and cabinet
Locking；The speed-variable pump belongs to sub-assembly, is respectively fitted with cover board, the pump housing and oil sealing, oil sealing and drive shaft cooperate, to speed-variable pump
Form sealing；It is characterized in that: adding oilhole and plug screw on the pump housing and cover board of the speed-variable pump, make between oil sealing and right bearing
Form asphalt channel, pressure oil passes through the pump housing and cover board along oilhole and reaches right bearing, and plug screw is by machining of oil hole technique at the pump housing
Hole plug is to avoid oil leak, the final forced feed lubrication realized to right bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755952.8U CN208252738U (en) | 2018-05-21 | 2018-05-21 | Loading machine gearbox power taking mouth bearing forced lubrication structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755952.8U CN208252738U (en) | 2018-05-21 | 2018-05-21 | Loading machine gearbox power taking mouth bearing forced lubrication structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208252738U true CN208252738U (en) | 2018-12-18 |
Family
ID=66480843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820755952.8U Active CN208252738U (en) | 2018-05-21 | 2018-05-21 | Loading machine gearbox power taking mouth bearing forced lubrication structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208252738U (en) |
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2018
- 2018-05-21 CN CN201820755952.8U patent/CN208252738U/en active Active
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