CN208487182U - Gearbox applied to high speed wheel type excavator - Google Patents
Gearbox applied to high speed wheel type excavator Download PDFInfo
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- CN208487182U CN208487182U CN201721833868.5U CN201721833868U CN208487182U CN 208487182 U CN208487182 U CN 208487182U CN 201721833868 U CN201721833868 U CN 201721833868U CN 208487182 U CN208487182 U CN 208487182U
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Abstract
Gearbox applied to high speed wheel type excavator, it is made of the lubricating system in box part, input part, output block, preceding bridge component and box part, the input part is driven respectively by four hydraulic motors, input part and output block directly pass through gear drive, and preceding bridge component passes through the output and interruption of fork controls power；The lubricating system is combined by forcedlubricating system and splash-lubricating system, the forcedlubricating system includes the internal oil channel being arranged on the cabinet of box part and case lid respectively, the internal oil channel connects external oil pump by threaded hole and is pumped into lubricating oil, bridge spring bearing, input and output spring bearing, shift fork sliding sleeve and point of mesh before the internal oil channel is respectively communicated with；The splashing lubrication includes that gear stirs oil, oil trap guidance, and the oilhole by opening up on spacer ring is connected to bearing and lubricates bearing；The features such as it has structure simple, can improve wheel and dig highest travel speed, improve the transition efficiency that wheel is dug.
Description
Technical field
The utility model relates to a kind of gearboxes applied to high speed wheel type excavator, belong to power transmission technology field.
Background technique
Wheel excavator referred to as wheel is dug, and is gained the name because it is using tire as walking manner.The advantage that wheel is dug is being capable of long distance
From quick transition, the speed of travel is faster, and efficiency is higher.By taking 20 tons of common wheels are dug as an example, highest speed of travel foreign countries are mostly
25~40km/h, that domestic is mostly 20~35km/h, and the 20 tons of wheel diggings of certain domestic manufacturer can be up to the following high speeds of 50 km/h(
State refers both to be greater than 50km/h).And the speed of travel that wheel is dug and one of the key reason that transition efficiency is further promoted are limited, it is
Existing wheel digs gearbox, and service life will greatly reduce at high speeds, major embodiment in the following areas:
1. lubricating system: now wheel dig gearbox mostly using splash lubrication, be unable to satisfy fast state lower bearing, gear,
The lubrication needs of the key parts such as shift fork.
2. noise: existing wheel digs gearbox at high speeds, and gear Meshing stability is greatly reduced, and leads to noise mistake
Greatly, user's operation is influenced.
3. sealing: existing wheel digging gearbox mostly uses conventional oil sealing, under fast state oil sealing linear velocity be up to 16m/s with
On, oil sealing service life greatly shortens.
Summary of the invention
The purpose of the utility model is to overcome the shortcomings of the prior art, and it is simple to provide a kind of structure, user
Just, wheel digging highest travel speed reliably, can be improved, the transition efficiency that wheel is dug is improved, high-speed wheel is greatly increased and digs gearbox use
The gearbox applied to high speed wheel type excavator in service life.
The purpose of this utility model is completed by following technical solution, a kind of applied to high speed wheel type excavator
Gearbox is made of the lubricating system in box part, input part, output block, preceding bridge component and box part, described
Input part driven respectively by four hydraulic motors, input part and output block directly pass through gear drive, preceding bridge component
Pass through the output and interruption of fork controls power；The lubricating system by forcedlubricating system and splash-lubricating system in conjunction with and
At the forcedlubricating system includes the internal oil channel being arranged on the cabinet of box part and case lid respectively, and the internal oil channel is logical
It crosses threaded hole to connect external oil pump and be pumped into lubricating oil, bridge spring bearing, input and output before the internal oil channel is respectively communicated with
Spring bearing, shift fork sliding sleeve and point of mesh；
The splashing lubrication includes that gear stirs oil, oil trap guidance, and the oilhole by opening up on spacer ring is connected to bearing
And lubricate bearing.
As preferred: the input part is identical with the structure of output block, and the input part is by input shaft, defeated
Enter gear, cylinder roller bearing, end cap composition, the input shaft has internal spline and is connected with hydraulic motor；
The input gear is to be connect with input shaft by spline by the helical gear of displacement correction of the flank shape processing；Described
Input gear is machined with positioning step on spoke, is supported on input shaft by axle sleeve 11, plays axial and radial positioning function.
As preferred: the input shaft is supported in cabinet by cylinder roller bearing and deep groove ball bearing, the circle
The interior outside of column roller bearing and deep groove ball bearing passes through circlip respectively and end cap carries out axially position, and passes through respectively
Spacer ring is adjusted；
One end and hydraulic motor junction of the input shaft are provided with dynamic labyrinth seal structure, and the dynamic labyrinth is close
Seal structure is made of labyrinth seal, paraxial oil-recovery tank and distal shaft oil-recovery tank, the paraxial oil-recovery tank and distal shaft oil-recovery tank difference
It is connected to cabinet.
The utility model is intended to optimize by various innovations, breaks through the speed of travel bottleneck that existing wheel is dug, digs wheel
Highest travel speed can reach 70 km/h, greatly improve the transition efficiency that wheel is dug；Wherein, each key part of the utility model
Lubrication is abundant, damage without exception；The utility model stable transmission, noise meet the standard of using, the sound without exception；The utility model
Sealing effect is good, and service life is met the requirements.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model.
Fig. 2 is forcedlubricating system structure chart described in the utility model.
Fig. 3 is splash-lubricating system structure chart described in the utility model.
Fig. 4 is input part structural schematic diagram described in the utility model.
Fig. 5 is the dynamic seal structure schematic diagram in input part described in the utility model.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing: shown in Fig. 1-3, one kind described in the utility model
Applied to the gearbox of high speed wheel type excavator, by box part I, input part II, output block III, preceding bridge component IV and
Lubricating system composition in box part I, the input part II drives respectively by four hydraulic motors, input part II with
For output block III directly by gear drive, preceding bridge component IV passes through the output and interruption of fork controls power；The lubrication
System is combined by forcedlubricating system and splash-lubricating system, and the forcedlubricating system includes respectively in 1 He of cabinet
The internal oil channel being arranged on case lid 2, the internal oil channel connect external oil pump and are pumped into lubricating oil by threaded hole 3, the interior oil
Bridge spring bearing, input and output spring bearing, shift fork sliding sleeve and point of mesh before road is respectively communicated with；As shown in Fig. 2, including making
27, steel pipe jumper connection are lubricated for shift fork at gear oil spout point 26, two at the threaded hole 3 of lubricating oil inlet, many places bearing lubrication 25, two
28。
Shown in Fig. 3, the splashing lubrication includes that gear stirs oil, oil trap 4 guides, and passes through the oil opened up on spacer ring 5
Hole connection bearing simultaneously carries out bearing lubrication 25.
Fig. 4, shown in 5, the input part II is identical with the structure of output block III, and the input part II is by defeated
Enter axis 6, input gear 8, cylinder roller bearing 12, end cap 18 form, the input shaft 6 have internal spline 7 and with hydraulic horse
Up to be connected；
The input gear 8 is to be connect with input shaft 6 by spline 9 by the helical gear of displacement correction of the flank shape processing；
The input gear 8 is machined with positioning step 10 on spoke, is supported on input shaft 6 by axle sleeve 11, rises
Axial and radial positioning function.
The input shaft 6 is supported in cabinet 1 by cylinder roller bearing 12 and deep groove ball bearing 13, the cylinder rolling
The interior outside of sub- bearing 12 and deep groove ball bearing 13 passes through circlip 14,15,16,17 respectively and end cap 18,19 carries out axis
It is adjusted to positioning, and respectively by spacer ring 20,21.
Shown in Fig. 5, one end and hydraulic motor junction of the input shaft 6 are provided with dynamic labyrinth seal structure, described
Dynamic labyrinth seal structure is made of labyrinth seal 22, paraxial oil-recovery tank 23 and distal shaft oil-recovery tank 24, the paraxial oil-recovery tank
23 and distal shaft oil-recovery tank 24 be respectively communicated with cabinet 1.
Embodiment: Fig. 2, shown in 3, lubricating system described in the utility model is using forcedlubricating system and lubrication phase of splashing
In conjunction with mode substitute traditional single splashing lubrication.
The forcedlubricating system does internal oil channel on cabinet 1 and case lid 2 respectively as shown in Figure 1, 2, from threaded hole 3
Place is pumped into lubricating oil, the key portion such as bridge spring bearing, input and output spring bearing, shift fork sliding sleeve and point of mesh before lubricating
Position, as shown in Figure 2.
The splashing lubrication stirs oil by gear, and is guided and realized with oil trap 4, as shown in figure 3, being moistened by spacer ring 5
Plain besring.
It is provided with oilhole on the spacer ring 5, has the function of throttling while lubricating bearing, prevents lubricating oil excessive,
Pocketed oil phenomenon is generated, leads to not take away heat in time.
Fig. 4 is the input part II of the utility model, by input shaft 6, input gear 8, cylinder roller bearing 12, end cap 18
Equal parts composition.The input shaft 6 has internal spline 7, is connected with hydraulic motor, realizes power input.
As shown in figure 4, the input gear 8 is to pass through spline with input shaft 6 by the helical gear of displacement correction of the flank shape processing
9 connections.
The spline 9 uses loose fit, only plays transmitting torque.
The input gear 8 is machined with positioning step 10 on spoke, is supported on input shaft 6 by axle sleeve 11, rises
Axial and radial positioning function.The vibration during High Speed Gearing is effectively reduced in the structure, using 11 shape of axle sleeve
Formula, convenient for safeguarding and trimming.
As shown in figure 5, the utility model is born radial support power, is increased simultaneously by 12 supporting box 1 of cylinder roller bearing
Add deep groove ball bearing 13, to resist light axial power caused by input shaft axial float.Cylinder roller bearing 12 and deep-groove ball axis
13 axially position is held to pass through circlip 14,15,16,17 and end cap 18,19 respectively and realize, and can by spacer ring 20,
21 are adjusted.
The sealing of the utility model is realized by labyrinth seal 22 and oil-recovery tank 23, oil-recovery tank 24.The fan
Palace sealing 8 is as shown in figure 5, extra oil liquid is returned in cabinet 2 by oil-recovery tank 23, oil-recovery tank 24.
Output block III is same as above.
Claims (3)
1. be applied to the gearbox of high speed wheel type excavator, by box part (I), input part (II), output block (III), preceding
Lubricating system composition in bridge component (IV) and box part (I), the input part (II) is by four hydraulic motors point
It does not drive, directly by gear drive, preceding bridge component (IV) is dynamic by fork controls by input part (II) and output block (III)
The output and interruption of power；It is characterized in that the lubricating system is combined by forcedlubricating system and splash-lubricating system,
The forcedlubricating system includes the internal oil channel being arranged on cabinet (1) and case lid (2) respectively, which passes through threaded hole
(3) it connects external oil pump and is pumped into lubricating oil, bridge spring bearing, input and output support shaft before the internal oil channel is respectively communicated with
It holds, shift fork sliding sleeve and point of mesh.
2. the gearbox according to claim 1 applied to high speed wheel type excavator, it is characterised in that the input unit
Part (II) is identical with the structure of output block (III), and the input part (II) is by input shaft (6), input gear (8), cylinder
Roller bearing (12), end cap (18) composition, the input shaft (6) have internal spline (7) and are connected with hydraulic motor；
The input gear (8) is to be connect with input shaft (6) by spline (9) by the helical gear of displacement correction of the flank shape processing；Institute
The input gear (8) stated is machined with positioning step (10) on spoke, is supported on input shaft (6) by axle sleeve (11), plays axis
To with radial positioning function.
3. the gearbox according to claim 2 applied to high speed wheel type excavator, it is characterised in that the input shaft
(6) it is supported in cabinet (1) by cylinder roller bearing (12) and deep groove ball bearing (13)；
One end and hydraulic motor junction of the input shaft (6) are provided with dynamic labyrinth seal structure, and the dynamic labyrinth is close
Seal structure is made of labyrinth seal (22), paraxial oil-recovery tank (23) and distal shaft oil-recovery tank (24), the paraxial oil-recovery tank (23)
Cabinet (1) is respectively communicated with distal shaft oil-recovery tank (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721833868.5U CN208487182U (en) | 2017-12-25 | 2017-12-25 | Gearbox applied to high speed wheel type excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721833868.5U CN208487182U (en) | 2017-12-25 | 2017-12-25 | Gearbox applied to high speed wheel type excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208487182U true CN208487182U (en) | 2019-02-12 |
Family
ID=65254213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721833868.5U Active CN208487182U (en) | 2017-12-25 | 2017-12-25 | Gearbox applied to high speed wheel type excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208487182U (en) |
-
2017
- 2017-12-25 CN CN201721833868.5U patent/CN208487182U/en active Active
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