CN207683644U - High reliability wheel design and excavator - Google Patents
High reliability wheel design and excavator Download PDFInfo
- Publication number
- CN207683644U CN207683644U CN201721480807.5U CN201721480807U CN207683644U CN 207683644 U CN207683644 U CN 207683644U CN 201721480807 U CN201721480807 U CN 201721480807U CN 207683644 U CN207683644 U CN 207683644U
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- CN
- China
- Prior art keywords
- wheel
- sealing
- bearing block
- directive wheel
- seal joint
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of high reliability wheel design and excavators, are related to engineering machinery field, and to improve the performance of existing wheel design, reducing even prevents it from Leakage occur.The wheel design includes directive wheel, wheel shaft and bearing block；Wheel shaft passes through the through-hole on directive wheel and bearing block, and the sealing structure that bilayer or multilayer is used to prevent oil leakage is equipped in the mating surface of directive wheel and bearing block.The wheel design that above-mentioned technical proposal provides can effectively reduce the probability for oil leak occur, it can be achieved that multi-layer sealed, improve the performance and used life of wheel design, have practicability.
Description
Technical field
The utility model is related to engineering machinery fields, and in particular to a kind of high reliability wheel design and excavator.
Background technology
Directive wheel is one of ground-engaging element of excavator, and on the one hand it play the guiding role, separately with chain rail assembly relative motion
On the one hand it is realized with swelling device synergy and is adjusted to the tensioner of crawler belt.The technology of directive wheel requires height, easily damages.
The directive wheel of excavator carries out mechanical seal usually using float grease seal to the lubricating oil in seal cavity at present.For
A certain amount of lubricating oil is injected by the oil filler point on bearing block in directive wheel closed cavity by lubrication, when assembly, is used in combination
Plug cock realizes sealing.When two pairs of floating sealing rings relatively rotate, a part of lubricating oil can enter between two floating sealing ring contact surfaces, and
One layer of lubricating oil film is formed on two contact surfaces, to realize the dual purpose of lubrication and sealing.
Inventor has found, at least there are following problems in the prior art：Currently, directive wheel is dynamic close using floating sealing ring realization
Envelope, the factor of leakage is more, and the difficulty for solving leakage problem is big.Seal failure is to lead to the main reason of directive wheel oil leak,
And seal failure once occurs, the lubricating oil in directive wheel can be revealed quickly, and then directive wheel is caused to lack lubrication because of inside
And it fails rapidly.During excavator operation, directive wheel often occurs and is damaged because of caused by the reasons such as oil leak.And once
Directive wheel, which is damaged, must just stop constructing, and re-replace new directive wheel, this has seriously affected the production efficiency of construction, together
When also increase the labor intensity of worker.
Utility model content
One of the utility model purpose is a kind of wheel design of proposition and excavator, to improve existing guiding
The performance of wheel construction, reducing even prevents it from Leakage occur.
To achieve the above object, the utility model provides following technical scheme：
The utility model provides a kind of wheel design, including directive wheel, wheel shaft and bearing block；The wheel shaft passes through
Through-hole on the directive wheel and the bearing block is equipped with bilayer or multilayer in the mating surface of the directive wheel and the bearing block
Sealing structure for preventing oil leakage.
In an alternate embodiment of the invention, the sealing structure includes the first sealing structure, and the first sealing structure setting exists
In lubricating oil cavity.
In an alternate embodiment of the invention, the directive wheel and the bearing block are designed with concave inward structure, two indent knots
Structure is pieced together to form the lubricating oil cavity.
In an alternate embodiment of the invention, the sealing structure further includes second seals structure, the second seals structure setting
In side of first sealing structure far from the wheel shaft axial line.
In an alternate embodiment of the invention, the second seals structure includes the first sealing ring and seal joint, the sealing pressure
Ring is fixed with the directive wheel, and first sealing ring is pressed on the directive wheel to block described lead by the seal joint
Gap at wheel and the bearing block mating surface.
In an alternate embodiment of the invention, the mating surface of the seal joint and first sealing ring is equipped with the second sealing ring.
In an alternate embodiment of the invention, first sealing ring is used to be bonded the side of the seal joint equipped with groove, institute
The second sealing ring is stated in the groove.
In an alternate embodiment of the invention, the directive wheel is equipped with lug boss, the outer surface of the lug boss and the bearing block
Between there is gap, first sealing ring to be set to the gap, the seal joint is removably installed in the protrusion
Portion.
In an alternate embodiment of the invention, the seal joint is installed on the lug boss by bolt.
In an alternate embodiment of the invention, sealing is equipped between the outer circle of the bearing block and the mating surface of the seal joint
Part.
The utility model embodiment also provides a kind of excavator, including the guiding that any technical solution of the utility model provides
Wheel construction.
Based on the above-mentioned technical proposal, the utility model embodiment can at least have the following technical effects：
The wheel design that above-mentioned technical proposal provides is equipped with double-deck or more in the mating surface of directive wheel and the bearing block
Layer breaks down or can not be complete for preventing the sealing structure of oil leakage in the sealing structure positioned at oil leak direction upstream
Full when preventing oil leak, the sealing structure positioned at downstream can further function as the effect for preventing oil leak, it can be achieved that multi-layer sealed, and
Sealing element replacement easy to disassemble, maintains easily, therefore can effectively reduce the probability for oil leak occur, improves the sealing of wheel design
Unfailing performance and service life have practicability, while can promote and apply in the four-wheels such as excavator one on train product.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is the schematic cross-sectional view for the wheel design that the utility model embodiment provides；
Fig. 2 is the enlarged diagram of a-quadrant in Fig. 1.
Fig. 3 is the assembling schematic diagram of the first sealing ring and the second sealing ring in Fig. 1
Fig. 4 is the schematic front view of seal joint in Fig. 1；
Fig. 5 is the schematic side view of Fig. 4.
Specific implementation mode
Technical solution provided by the utility model is illustrated in more detail with reference to Fig. 1~Fig. 5.
Referring to Fig. 1, the utility model embodiment provides a kind of wheel design, including directive wheel 1, wheel shaft 2 and bearing
Seat 3.Wheel shaft 2 passes through the through-hole 4 on directive wheel 1 and bearing block 3, is equipped in the mating surface of directive wheel 1 and bearing block 3 double-deck or more
Sealing structure of the layer for preventing oil leakage.
Referring to Fig. 1, the both sides of directive wheel 1 are designed with bearing block 3, and two sides of directive wheel 1 are all pasted with bearing block 3
It closes.It is formed and is coordinated in the binding face of directive wheel 1 and bearing block 3, multi-layer sealing structure is equipped at mating surface, to prevent from putting in advance
Set the oil leakage in product lubricant reservoir.In the present embodiment, it is designed with bearing block 3 in 1 both sides of directive wheel, therefore is being oriented to
It takes turns and is designed with sealing structure at the mating surface of 1 both sides.
Referring to Fig. 1, wheel design includes directive wheel 1, bearing block 3 and the concentric holes on directive wheel 1 and bearing block 3
Wheel shaft 2.
Referring to Fig. 1, sealing structure includes the first sealing structure 5, and the first sealing structure 5 includes being arranged in lubricating oil cavity 6
In floating sealing ring 51 and floating rubber ring 52.Floating sealing ring 51 and floating rubber ring 52 coordinate jointly, achieve the purpose that floating seal,
Constitute first layer sealing.
Referring to Fig. 1, directive wheel 1 and bearing block 3 are designed with concave inward structure, and two concave inward structures are pieced together to form lubricating oil cavity
6.The structure is easily installed the first sealing structure 5.
Referring to Fig. 1 and Fig. 2, further, sealing structure further includes second seals structure 7, and the setting of second seals structure 7 exists
First side of the sealing structure 5 far from 2 axial line of wheel shaft.Second seals structure 7 is located at the downstream of the first sealing structure 5, if the
The oil of seal failure at one sealing structure 5, lubricating oil cavity 6 will be sealed by second seals structure 7, it is seen then that second seals structure 7
The sealing function of the second layer can be played.
Referring to Fig. 2, in the present embodiment, second seals structure 7 includes the first sealing ring 71 and seal joint 72, seal joint
72 fix with directive wheel 1, and the first sealing ring 71 is pressed on directive wheel 1 to block directive wheel 1 and bearing block 3 by seal joint 72
Gap at mating surface.
Seal joint 72 and the first sealing ring 71 are used cooperatively, composition second layer sealing, to reinforce the sealing of directive wheel 1
Performance prevents directive wheel 1 from oil leak occurs.
Referring to Fig. 1 and Fig. 2, the mating surface of seal joint 72 and the first sealing ring 71 is equipped with the second sealing ring 73.Second is close
Seal 73 can play sealing function, prevent fluid from being revealed from the mating surface of seal joint 72 and the first sealing ring 71.
Referring to Fig. 2 and Fig. 3, the first sealing ring 71 is equipped with groove 74, the second sealing for the side of gluing, sealing pressure ring 72
Circle 73 is set in groove 74.The cross-sectional shape of groove 74 can be U-shaped.
It is understood that groove 74 can also be arranged on seal joint 72, enhancing sealing can also be equally played
Effect.Specifically, the side of seal joint 72 is provided with U-loop slot, close with the use of that can enhance its with the first sealing ring 71
Effect is sealed, the sealing effect of second layer sealing is reinforced.
Referring to Fig. 2, directive wheel 1 is equipped with lug boss 11, has gap between lug boss 11 and the outer surface of bearing block 3, the
One sealing ring 71 is set to gap, and seal joint 72 is removably installed in lug boss 11.
Referring to Fig. 2, in the present embodiment, sealing element 13 is equipped between the outer circle and the mating surface of seal joint 72 of bearing block 3,
Specially O-ring.In the present embodiment, O-ring, the inner ring of O-ring and seal joint 72 are equipped in the baltimore groove of 3 outer circle of bearing block
Face cooperation constitutes third layer sealing, further strengthens the sealing performance of directive wheel 1, effectively prevent directive wheel 1 that oil leak occurs.
It describes in detail below in conjunction with the accompanying drawings to utility model.
As shown in Figures 1 to 5, wheel design include directive wheel 1, wheel shaft 2, bearing block 3, floating sealing rubber ring 52, bushing 16,
Floating sealing ring 51, O-ring seals 15, straight pin 14, the first sealing ring 71, third sealing ring, seal joint 72, bolt 12 and second
Sealing ring 73.
Referring to Fig. 1, bimetallic bushing 16 is fitted in the through-hole of directive wheel 1, and inside is equipped with wheel shaft 2, wheel shaft 2 and left and right
Bearing block 3 realizes connection and by the realization axially position of straight pin 14 by being interference fitted.Then bearing block 3 is connected by bolt 12
The mode connect is connect with swelling device.Space between 1 both ends of directive wheel and left and right bearing block 3 is called floating envelope room, wherein floating envelope
Cooperation is equipped with two pairs of floating sealing rings 51 and floating sealing rubber ring 52 in room.
Referring to Fig. 1, O-ring seals 15 are placed in the baltimore groove at 2 both ends of wheel shaft, are located at the periphery and bearing of wheel shaft 2
Between the inner headed face of seat 3, it can prevent from revealing in gap of the lubricating oil between wheel shaft 2 and bearing block 3.
Referring to Fig. 2, the first sealing ring 71 is positioned among the annulus between bearing block 3 and directive wheel 1, and first is close
The second sealing ring 73 is placed in the lateral grooves 74 of seal 71.First sealing ring 71 and the second sealing ring 73 are with the use of can be with
Enhance its sealing effect, while their cooperations constitute second layer sealing, strengthen the sealing performance of directive wheel 1, prevent from being oriented to
Take turns 1 oil leak.
Referring to Fig. 1 and Fig. 2, the first sealing ring 71 and the second sealing ring 73 are pressed on bearing block 3 and led by seal joint 72
Into the annulus between wheel 1.One side end face of seal joint 72 closely connects with the first sealing ring 71 and the second sealing ring 73
It touches, constitutes second layer sealing.The inner ring surface of seal joint 72 is in close contact with sealing element 13 simultaneously, constitutes third layer sealing, from
And realize compact-sized, the strong dual purpose of leakproofness.Seal joint 72 is connected in the lug boss 11 of directive wheel 1 by bolt 12
End face on, facilitate realization installation and dismounting.
Referring to Fig. 2, sealing element 13 is positioned in the groove 74 of 3 outer circle of bearing block, and is matched with the inner ring surface of seal joint 72
It closes and constitutes third layer sealing.The sealing performance for further enhancing directive wheel 1 effectively prevents directive wheel 1 and oil leak occurs, in turn
Extend the service life of directive wheel 1.
The utility model embodiment also provides a kind of excavator, including the guiding that any technical solution of the utility model provides
Wheel construction.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown only is the utility model and simplified description for ease of description, rather than indicates or imply meaning
Device or element must have a particular orientation, be specific azimuth configuration and operation, thus should not be understood as new to this practicality
Type protects the limitation of content.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
It is same to replace, but these modifications or replacements, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (11)
1. a kind of high reliability wheel design, which is characterized in that including directive wheel (1), wheel shaft (2) and bearing block (3)；Institute
Through-hole (4) of the wheel shaft (2) on the directive wheel (1) and the bearing block (3) is stated, in the directive wheel (1) and the axis
The mating surface of bearing (3) is equipped with the sealing structure that bilayer or multilayer is used to prevent oil leakage.
2. wheel design according to claim 1, which is characterized in that the sealing structure includes the first sealing structure
(5), first sealing structure (5) is arranged in lubricating oil cavity (6).
3. wheel design according to claim 2, which is characterized in that the directive wheel (1) and the bearing block (3) are all
Equipped with concave inward structure, two concave inward structures are pieced together to form the lubricating oil cavity (6).
4. wheel design according to claim 2, which is characterized in that the sealing structure further includes second seals structure
(7), second seals structure (7) setting is in side of first sealing structure (5) far from the wheel shaft (2) axial line.
5. wheel design according to claim 4, which is characterized in that the second seals structure (7) includes first close
Seal (71) and seal joint (72), the seal joint (72) is fixed with the directive wheel (1), and the seal joint (72) will
First sealing ring (71) is pressed on the directive wheel (1) to block the directive wheel (1) and the bearing block (3) cooperation
Gap at face.
6. wheel design according to claim 5, which is characterized in that the seal joint (72) and first sealing
The mating surface for enclosing (71) is equipped with the second sealing ring (73).
7. wheel design according to claim 6, which is characterized in that first sealing ring (71) is described for being bonded
The side of seal joint (72) is equipped with groove (74), and second sealing ring (73) is set in the groove (74).
8. wheel design according to claim 5, which is characterized in that the directive wheel (1) is equipped with lug boss (11), institute
Stating has gap between lug boss (11) and the outer surface of the bearing block (3), first sealing ring (71) is set to the sky
At gap, the seal joint (72) is removably installed in the lug boss (11).
9. wheel design according to claim 8, which is characterized in that the seal joint (72) is pacified by bolt (12)
Loaded on the lug boss (11).
10. wheel design according to claim 5, which is characterized in that the outer circle of the bearing block (3) and the sealing
Sealing element (13) is equipped between the mating surface of pressure ring (72).
11. a kind of excavator, which is characterized in that including any wheel designs of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721480807.5U CN207683644U (en) | 2017-11-09 | 2017-11-09 | High reliability wheel design and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721480807.5U CN207683644U (en) | 2017-11-09 | 2017-11-09 | High reliability wheel design and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207683644U true CN207683644U (en) | 2018-08-03 |
Family
ID=62988234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721480807.5U Withdrawn - After Issue CN207683644U (en) | 2017-11-09 | 2017-11-09 | High reliability wheel design and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207683644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745754A (en) * | 2017-11-09 | 2018-03-02 | 徐工集团工程机械有限公司 | High reliability wheel design and excavator |
-
2017
- 2017-11-09 CN CN201721480807.5U patent/CN207683644U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745754A (en) * | 2017-11-09 | 2018-03-02 | 徐工集团工程机械有限公司 | High reliability wheel design and excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190419 Address after: 221004 26 Tuo Lan Shan Road, Xuzhou economic and Technological Development Zone, Jiangsu Patentee after: JIANGSU XUGONG ENGINEERING MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: 221004 26 Tuo Lan Shan Road, Xuzhou economic and Technological Development Zone, Jiangsu Patentee before: XCMG CONSTRUCTION MACHINERY Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180803 Effective date of abandoning: 20230801 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180803 Effective date of abandoning: 20230801 |