CN110067857A - Stake machine and its power device sealing structure - Google Patents
Stake machine and its power device sealing structure Download PDFInfo
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- CN110067857A CN110067857A CN201810138435.0A CN201810138435A CN110067857A CN 110067857 A CN110067857 A CN 110067857A CN 201810138435 A CN201810138435 A CN 201810138435A CN 110067857 A CN110067857 A CN 110067857A
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- power device
- power
- sealing
- seal closure
- ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 157
- 230000003068 static effect Effects 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 238000002955 isolation Methods 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 8
- 230000036346 tooth eruption Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 description 14
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007937 lozenge Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/003—Bearing, sealing, lubricating details
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geometry (AREA)
- Gasket Seals (AREA)
Abstract
Stake machine and its power device sealing structure.The invention discloses a kind of power device sealing structures, the output main shaft of power device is fixedly installed with power wheel, seal closure is provided between power device body and power wheel, the first end of seal closure is fixedly installed in power device body, the second end of seal closure is set in power axle sleeve, and static seal element is provided between the first end and power device body of seal closure, moving sealing element is provided between the second end and power axle sleeve of seal closure.Power device sealing structure of the invention has the advantages that sealing effect is good.
Description
It is that " on 01 22nd, 2018 " application No. is " 201820104884.9 ", entitled " tools the present invention claims the applying date
The priority of the Chinese utility model patent application of the stake machine chain broaching of dynamic device sealing structure ", the whole of the application
Content is documented in the patent application document.
Technical field
The present invention relates to stake machine technical fields, and in particular to stake machine and its power device sealing structure.
Background technique
Cement mixing method is generally drilled with twist bit, and power is located at outside hole, i.e., sets on power.This twist bit
The ground size cut down is larger, sometimes even can at bulk, this be easy to cause with cement mixing unevenness, thus influence pile
Quality.
For this purpose, installing chain type stake on the drill headstock of drilling rod bottom applicant proposed a kind of scheme of chain broaching
Machine drill head, wherein chain type drill bit of pile machine includes chain type carrier, and many cuttings of array distribution are provided on the chain type carrier
Tooth is advantageously implemented uniform stirring in this way convenient for smashing the soil body.
This chain broaching is loaded on drilling rod bottom, it is difficult to using the scheme set on power；Otherwise transmission chain is too long, is laid out
It is extremely difficult.In view of this, applicant uses the underlying scheme of power, but this seal request pole underlying to power
It is high；Once sealing is bad, hole Nei Shui, mud etc. thereby result in equipment damage possibly into engine.
Existing power device sealing structure is primarily upon the sealing problem between power spindle and engine body end cover, seal means
Install sealing ring or oil sealing additional mainly between power spindle and engine body end cover.Problem is, the operating environment in severe hole
Under, sealing ring or oil sealing between power spindle and engine body end cover may fail because ground particle scratches.Therefore, this sealing
Structure is unable to satisfy the underlying requirement of a mechanomotive force, and it is necessary to improve thus.
Summary of the invention
This application provides a kind of good power device sealing structures of sealing effect.
The technical solution of the present invention is as follows: a kind of power device sealing structure, the output main shaft of power device is fixedly installed with
Power wheel, is provided with seal closure between power device body and power wheel, the first end of the seal closure is fixedly installed in power
Device body, the second end of the seal closure are set in power axle sleeve, and the first end of the seal closure and power device machine
It is provided with static seal element between body, is provided with moving sealing element between the second end and power axle sleeve of the seal closure.
The sealing that the application is socket-connected using first end and the fixed setting of power device body, second end and power axle sleeve
It covers and the link position between power device output main shaft and power wheel is protected, also, seal closure first end and power fill
It sets and forms static seal, seal closure second end and power axle sleeve formation dynamic sealing between body, so that power device exports main shaft
Link position between link position, power device body between power wheel and power device output main shaft is in close always
Under seal ring border, external impurities are difficult to invade, and sealing effect is good, and the service life of power device and power wheel greatly prolongs.
In above-mentioned power device sealing structure, the moving sealing element includes sealing ring, the sealing delineation
On the inside of seal closure, and the sealing ring is fitted closely with the inner peripheral surface and power axle sleeve outer peripheral surface of seal closure simultaneously.Tightly
Closely connected conjunction can be further ensured that sealing performance.
In above-mentioned power device sealing structure, the sealing ring sliding sleeve is loaded on power axle sleeve, and described
Several annular grooves are provided on the annular sealing surface of sealing ring inner circumferential, so that the sealing ring can be along the axis of power axle sleeve
To deformation.When sealing ring is under pressured state, the presence of annular groove makes sealing ring have deformation space, and deformation occurs
Afterwards, the inner sidewall of annular groove and the outer peripheral surface of power axle sleeve fit closely, so that sealing ring can be realized self-tightening sealing, into
One step improves sealing effect.
In above-mentioned power device sealing structure, the cross section of the annular groove is in rectangle, arc, wedge shape
Any one.The cross-sectional shape of annular groove can be specifically arranged according to specific needs；General setting principle is easy for phase
Sealing ring position between adjacent two annular grooves deforms, and farthest reduces the stress damage of sealing ring itself；And
And the inner sidewall of annular groove can realize larger area with power axle sleeve outer peripheral surface to the maximum extent after sealed ring deformation
Contact.
In above-mentioned power device sealing structure, the cross section close to the annular groove of power device body side is in wedge
Shape, and the depth of wedge shape is laterally away from power device body side from close power device body one and gradually increases.In sealing ring
When compression, the annular groove of wedge-shaped in cross-section can not only deformation occurs rapidly, and lozenges can also as early as possible and maximum journey
Degree ground is in sealing contact with power axle sleeve outer peripheral surface；The depth of wedge shape is smaller in close power device body side, then close
Power device body side can earlier, more change places between power axle sleeve outer peripheral surface and sealing ring and realize self-tightening sealing, guarantee
Power wheel and the connecting portion of power device obtain the seal protection of priority.
In above-mentioned power device sealing structure, the sealing ring periphery is set with elastic ring, and the elastic ring can
Be pressurized the fitting sealing ring and the seal closure.Elastic ring distinguishes gluing, sealing circle and seal closure, annular after compression
The presence of groove enables to sealing ring to be easier to, and deformation occurs.
In above-mentioned power device sealing structure, the end of the periphery of the sealing ring is provided with annular notch, institute
The elastic ring in pressured state is embedded in the annular notch stated.Annular notch in sealing ring end sealing
It is capable of forming the excellent dynamic sealing position in sealing ring end between circle and power wheel, as long as the seal shape of sealing ring end
State is excellent, then even if other positions, there are nothing too big influences poor sealing.
During elastic ring compressive deformation, annular notch should be only towards an opening of seal closure side, should
Opening is only used for transmitting the pressure from seal closure, and the amount of elastic deformation that the opening in other directions will lead to elastic ring, which is deactivated, to be turned
Change.Therefore, the annular notch, which can be, has the annular notch that there are three side wall, cross section is in flat U-typed, the annular
Notch itself is only one opening towards seal closure；It is arranged in addition, the annular notch can also be on sealing ring side
Edge position, with two side walls, section is L-shaped, the annular notch of anti-" L " type or inverted "L" shape, although the annular notch sheet
Body has the opening towards both direction, but after the sealing ring assembly, has an opening (in addition to court on the annular notch
To the opening of seal closure side) it can be blocked by other components (seal closure end cap and/or isolation ring described as follows), finally exist
In actual use, the annular notch also only one be open.The form of both annular openings is all to be suitable for the application
's.
In above-mentioned power device sealing structure, the moving sealing element at least there are two, in adjacent dynamic sealing member
The isolation ring for being set in power axle sleeve is provided between part.Multiple moving sealing elements make on different moving sealing elements
Annular groove can generate different deformation, thus realize it is multi-stage sealed, guarantee power axle sleeve outer peripheral surface each position at
All have good sealing effect.Isolation ring is set between adjacent moving sealing element and is able to extend moving sealing element and power
The width between sealing surface between axle sleeve enhances sealing effect.
In the application, the sealing ring and isolation ring be all made of hard nonmetallic wear-resistant material, it is non-by hard
Sealing ring and isolation ring made of metal wear resistant material can not only improve the service life of sealing ring and isolation ring, and can
Power axle sleeve outer peripheral surface is prevented to be worn.
In above-mentioned power device sealing structure, it is equipped in the seal closure in moving sealing element axial limiting
Stop circle, the seal closure end are fixedly installed with the seal closure end cap as outer stop circle.Interior stop circle and seal closure end
The annular accommodating space for accommodating the moving sealing element is formed between lid, while axial limit also is carried out to moving sealing element
Position guarantees that axial sliding will not occur for moving sealing element.
In above-mentioned power device sealing structure, the first end of the seal closure is fixedly installed in power device body
Ontology or cover, and carried out between the seal closure first end and the ontology or cover of power device body with gasket seal quiet
Sealing.It can so protect the link position between seal closure first end and power device body that asking for sundries intrusion will not occur
Topic.
In above-mentioned power device sealing structure, the output main shaft of the power device is provided with ring flange, described
Power axle sleeve is fastenedly connected with the ring flange, and between output main shaft and the ring flange and/or the power axle sleeve
Static seal is carried out with gasket seal between the ring flange.
Using in the stake machine of underlying power, working environment locating for stake power plants is very severe, needs to soak for a long time
Bubble is in mud, and mud pressure increases with depth of mud locating for stake power plants and increased.If stake mechanomotive force fills
Good seal approach is not taken in setting, it is more likely that will appear the leakage of internal gear oil or slurry compounding is exported to power device
The problems such as gap between main shaft and power wheel, the service life of drill bit is caused to be had a greatly reduced quality.
Therefore present invention also provides a kind of machine, this machine includes drilling rod, is pacified on the drill headstock of the drilling rod bottom
Equipped with chain type drill bit of pile machine, the chain type drill bit of pile machine includes chain type carrier, is provided with cutting on the chain type carrier
Tooth array, wherein the power wheel of chain type carrier is installed on outside drill headstock, and the application is configured between the power wheel and power device
The power device sealing structure.
Compared with prior art, the beneficial effects of the present invention are embodied in:
The sealing that the application is socket-connected using first end and the fixed setting of power device body, second end and power axle sleeve
It covers and the link position between power device output main shaft and power wheel is protected, also, seal closure first end and power fill
It sets and forms static seal, seal closure second end and power axle sleeve formation dynamic sealing between body, so that power device exports main shaft
Link position between link position, power device body between power wheel and power device output main shaft is in close always
Under seal ring border, external impurities are difficult to invade, and sealing effect is good, and the service life of power device and power wheel greatly prolongs.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of power device sealing structure of the present invention；
Fig. 2 is the enlarged drawing in Fig. 1 at sealing ring；
Fig. 3 is the enlarged drawing of sealing ring in Fig. 2；
Fig. 4 is the enlarged drawing of part A in Fig. 1；
The enlarged drawing of part B in Fig. 5 bitmap 1；
Fig. 6 is the structural schematic diagram of a kind of machine of the invention.
Specific embodiment
Further details of the technical solution of the present invention with reference to the accompanying drawings and detailed description.
Embodiment 1
As shown in Figure 1, a kind of power device sealing structure of the present embodiment, the sealing mechanism are configured in power device (such as
Hydraulic motor, motor etc.) and power wheel 2 between, be illustrated in the present embodiment using motor reducer 1 as power device.
As shown in Figure 1 and Figure 4, power wheel 2 is fixedly installed on the output main shaft 11 of motor reducer 1, wherein power wheel
Axle sleeve 23 is set in output 11 outer peripheral surface of main shaft；It is fixedly mounted on output main shaft 11 and is sealed with ring flange 13, in direction
The end of 12 one end of motor reducer body, 23 inner circumferential of power axle sleeve are equipped with ring-shaped step 24, which is resisted against
On ring flange 13；Several first mounting holes 25 through power axle sleeve 23, the first mounting hole 25 are equipped in power axle sleeve 23
It is in bar shaped and axially extending along power axle sleeve 23, position and aperture with each first mounting hole 25 are then offered on ring flange 13
One-to-one second mounting hole, is equipped with interior hexagonal cylindrical head spiral shell in matched first mounting hole 25 and the second mounting hole
Nail 21；To which power wheel 2 is fixedly installed on the output main shaft 11 of motor reducer 1.
It is dismantled to be easily installed, in the present embodiment, hexagon socket cap head screw 22 is from power wheel axle sleeve 23 far from motor
The end of 12 one end of speed reducer body is installed in power axle sleeve 23, in hexagon socket cap head screw 22 and power axle sleeve
Spring washer 22 is equipped between 23 end faces.In addition, the position can also install gasket seal additional；Be connected through a screw thread in this way sealing and
Gasket seal sealing, realizes better seal effect.
Certainly, in addition to hexagon socket cap head screw 21, the screw-type of other routines can also be selected；In addition to spring washer
22, the elastomeric pad that other can also be selected conventional.
Static seal can be realized using gasket seal or oil sealing between ring flange 13 and output main shaft 11.
As shown in Figure 1, the sealing mechanism of the present embodiment includes seal closure 3, seal closure 3 includes the first end 32 being wholely set
With second end 33.The seal closure 3 can be the tubular in Fig. 1, and the second end opening of cylinder, first end is with a central hole
Cylinder bottom.Certainly, seal closure 3 can also be using structures such as hemispherical caps, as long as being easy to implement sealing.
As shown in Figure 5, wherein the first end 32 of seal closure 3 is fixedly installed on motor reducer body 12, first end 32
The first annular end face 34 fitted closely with 14 outer peripheral surface of cover with motor reducer body 12 and and motor reducer
The second annular end face 35 that 15 outer peripheral surface of ontology of body 12 fits closely, first annular end face 34 and the second annular end face 35
Joint face 36 is to fit with the outer end face of cover 14, and several the are opened up on the location of joint face 36, first end 32
Three mounting holes 37, offer on cover 14 with one-to-one several 4th mounting holes 16 in the position of each third mounting hole 37,
Fastening bolt can be set between matched third mounting hole 37 and the 4th mounting hole 16；It simultaneously can also be in first annular end face
Between 34 and 14 outer peripheral surface of cover, between 15 outer peripheral surface of the second annular end face 35 and ontology and joint face 36 and 14 outer end of cover
Gasket seal is set between face to form static seal.In the present embodiment, the aperture of third mounting hole 37 is greater than the 4th mounting hole 16
Aperture, so that the nut of fastening bolt can be resisted against the rims of the 4th mounting hole 16.
As shown in Fig. 2, the second end 33 of seal closure 3 is then set in power axle sleeve 23；In power axle sleeve 23 towards horse
Up to the end of 12 one end of speed reducer body, which is equipped with guide surface 26, seal closure 3 is being installed to power
When in axle sleeve 23, which can form seal closure 3 and guide.Certainly, guide surface 26 can be plane or arcwall face.
As shown in Figures 2 and 3, it is provided with moving sealing element between the second end 33 and power axle sleeve 23 of seal closure 3, it is close
The interior stop circle 31 to moving sealing element axial limiting is equipped in sealing cover 3, and 3 end of seal closure is then fixedly installed with and is used as outer stop
The seal closure end cap 4 of ring washer.In the present embodiment, seal closure end cap 4 includes being connected by fastening bolt 43 and the fastening of 3 end face of seal closure
The lid 41 connect, lid 41 have between seal closure 3 and power axle sleeve 23 and respectively with seal closure 3 and power wheel shaft
The extension 42 of 23 sealing cooperation of set, extension 42 and interior stop circle 31 are oppositely arranged, are formed for accommodating moving sealing element
Annular accommodating space.It is understood that can also be provided directly as being threadedly engaged (i.e. between seal closure end cap 4 and seal closure 3
Extension 42 has external screw thread, and seal closure has the internal screw thread matched with the external screw thread), rotatory sealing can be passed through in this way
Cover end cap 4 is come the fixation both realized.
In the present embodiment, moving sealing element includes sealing ring 5, and sealing ring 5 is positioned at 3 inside of seal closure, and sealing ring 5 is same
When fitted closely with the inner peripheral surface and 23 outer peripheral surface of power axle sleeve of seal closure 3.
5 sliding sleeve of sealing ring is loaded on power axle sleeve 23, is provided with several rings on the annular sealing surface 53 of 5 inner circumferential of sealing ring
Connected in star 52, each annular groove 52 are distributed along 23 axially spaced-apart of power axle sleeve；And the end of the periphery of sealing ring 5 is provided with ring
V notch v 51 is embedded with the elastic ring 6 in pressured state in the annular notch 51.When not being pressurized, elastic ring 6 is being sealed
The size of circle 5 radially is greater than size of the annular notch 51 in sealing ring 5 radially, therefore elastic ring 6 can be towards 3 side of seal closure
To the outside for protruding from annular notch 51, squeezed so that seal closure 3 forms elastic ring 6；Elastic ring 6 under pressured state can
It is fitted closely respectively with sealing ring 5 and seal closure 3.
In the present embodiment, the cross section of annular groove 52 be can be in rectangle, arc or wedge shape, and the application does not have this
Limitation.But, the cross section close to the annular groove 52 of 12 side of motor reducer body is preferably wedge shaped, and wedge shape
Depth is laterally away from 12 side of motor reducer body from close motor reducer 1 and gradually increases.This is because cross section is in
The annular groove 52 of wedge shape can not only deformation occurs rapidly, and lozenges can also as early as possible and farthest with power wheel shaft
It is in sealing contact to cover 23 outer peripheral surfaces；The depth of wedge shape is smaller in close 12 side of motor reducer body, then slows down close to motor
12 side of machine body is easier to realize sealing between 23 outer peripheral surface of power axle sleeve and sealing ring 5, guarantees that power wheel 2 subtracts with motor
Connecting portion, output main shaft 11 between the output main shaft 11 of fast machine 1 and the connecting portion between motor reducer body 12 obtain
To preferential seal protection.
In the present embodiment, moving sealing element at least there are two, be provided between adjacent moving sealing element and be set in power
The isolation ring 7 of axle sleeve 23.Sealing ring 5 and isolation ring 7 are used made of hard nonmetallic wear-resistant material, wherein macromolecule
Wear-resistant material can be ceramic composite, silicon carbide (SiC), silicon nitride (Si3N4), toughened zirconium oxide (Y2O3+ZrO2), increasing
Tough aluminum oxide (Al2O3/ZrO2) etc..
The working principle of the present embodiment power device sealing structure are as follows:
After the assembly is completed, interior stop circle 31 and seal closure end cap 4 play the work to the equal moving sealing elements positioning of sealing ring 5
With wherein sealing ring 5 is adjacent to 3 inner sidewall of seal closure and 23 outer peripheral surface of power axle sleeve, and elastic ring 6 is squeezed and elastic shape occurs
Become, swelling further makes 5 deformation of sealing ring, be achieved in self-tightening, thus between the annular notch and seal closure 3 of sealing ring 5
Play the role of better seal.Its annular recess 52 is convenient for 5 deformation of sealing ring, to improve sealing effect.
Just in case when the gap for having foreign matter to enter seal closure end cap 4 and seal closure 3, elastic ring 6 is further pressurized, so that sealing
Circle 5 follows deformation, so that sealing ring 5 is bonded closer with power axle sleeve 23 and seal closure 3, to effectively improve sealing
Effect.
Embodiment 2
As shown in fig. 6, a kind of machine of the present embodiment, this machine include drilling rod M1 and the drill headstock set on the lower end drilling rod M1
M2 is equipped with chain type drill bit of pile machine M3 on drill headstock, and chain type drill bit of pile machine M3 includes chain type carrier M4, is arranged on chain type carrier M4
Have cutting teeth M5 array, wherein the power wheel 2 of chain type carrier M4 is installed on outside drill headstock M2, the power wheel 2 and power device 1 it
Between be configured with power device sealing structure same as Example 1.
Claims (10)
1. the output main shaft (11) of a kind of power device sealing structure, power device (1) is fixedly installed with power wheel (2), special
Sign is, is provided between power device body (12) and power wheel (2) seal closure (3), the first end of the seal closure (3)
(32) it being fixedly installed in power device body (12), the second end (33) of the seal closure (3) is set in power axle sleeve (23),
And static seal element, the seal closure are provided between the first end (32) and power device body (12) of the seal closure (3)
(3) moving sealing element is provided between second end (33) and power axle sleeve (23).
2. power device sealing structure according to claim 1, which is characterized in that the moving sealing element includes sealing
It encloses (5), the sealing ring (5) is positioned on the inside of seal closure (3), and the sealing ring (5) while the inner circumferential with seal closure (3)
Face and power axle sleeve (23) outer peripheral surface fit closely.
3. power device sealing structure according to claim 2, which is characterized in that the sealing ring (5) slides suit
Several annular grooves are provided in power axle sleeve (23), and on the annular sealing surface (53) of described sealing ring (5) inner circumferential
(52), so that the sealing ring (5) can be along the axial deformation of power axle sleeve (23).
4. power device sealing structure according to claim 2, which is characterized in that sealing ring (5) the periphery suit
Elastic ring (6), the elastic ring (6), which can be pressurized, is bonded the sealing ring (5) and the seal closure (3).
5. power device sealing structure according to claim 4, which is characterized in that the periphery of the sealing ring (5)
End is provided with annular notch (51), and the elastic ring (6) in pressured state is embedded in the annular notch (51).
6. power device sealing structure according to claim 2, which is characterized in that the moving sealing element at least two
It is a, the isolation ring (7) for being set in power axle sleeve (23) is provided between adjacent moving sealing element.
7. power device sealing structure according to claim 1, which is characterized in that be equipped in the seal closure (3) pair
The interior stop circle (31) of moving sealing element axial limiting, the seal closure (3) end are fixedly installed with as outer stop circle
Seal closure end cap (4).
8. power device sealing structure according to any one of claims 1-7, which is characterized in that the seal closure
(3) first end (32) is fixedly installed in the ontology (15) or cover (14) of power device body (12), and the seal closure (3)
Static seal is carried out with gasket seal between first end (32) and the ontology (15) or cover (14) of power device body (12).
9. power device sealing structure according to any one of claims 1-7, which is characterized in that the power dress
The output main shaft (11) for setting (1) is provided with ring flange (13), and the power axle sleeve (23) and the ring flange (13) fastening connect
It connects, and between the output main shaft (11) and ring flange (13) and/or the power axle sleeve (23) and the ring flange (13)
Between with gasket seal carry out static seal.
10. a kind of machine, including drilling rod, which is characterized in that be equipped with chain type stake machine drill on the drill headstock of the drilling rod bottom
Head, the chain type drill bit of pile machine include chain type carrier, are provided with cutting teeth array on the chain type carrier, wherein chain type
The power wheel (2) of carrier is installed on outside drill headstock, between the power wheel (2) and power device (1) configuration just like claim 1~
Power device sealing structure described in any one of 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820104884 | 2018-01-22 | ||
| CN2018201048849 | 2018-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110067857A true CN110067857A (en) | 2019-07-30 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820242094.7U Active CN208169515U (en) | 2018-01-22 | 2018-02-10 | Stake machine and its power device sealing structure |
| CN201810138435.0A Withdrawn CN110067857A (en) | 2018-01-22 | 2018-02-10 | Stake machine and its power device sealing structure |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820242094.7U Active CN208169515U (en) | 2018-01-22 | 2018-02-10 | Stake machine and its power device sealing structure |
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| Country | Link |
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| CN (2) | CN208169515U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682511A (en) * | 2020-12-29 | 2021-04-20 | 三一重型装备有限公司 | Rotating wheel and engineering equipment |
-
2018
- 2018-02-10 CN CN201820242094.7U patent/CN208169515U/en active Active
- 2018-02-10 CN CN201810138435.0A patent/CN110067857A/en not_active Withdrawn
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| Publication number | Publication date |
|---|---|
| CN208169515U (en) | 2018-11-30 |
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Application publication date: 20190730 |
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| WW01 | Invention patent application withdrawn after publication |