CN207880075U - A kind of good dustband of low temperature seal performance energy - Google Patents
A kind of good dustband of low temperature seal performance energy Download PDFInfo
- Publication number
- CN207880075U CN207880075U CN201721872970.6U CN201721872970U CN207880075U CN 207880075 U CN207880075 U CN 207880075U CN 201721872970 U CN201721872970 U CN 201721872970U CN 207880075 U CN207880075 U CN 207880075U
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- Prior art keywords
- lip
- arcuate structure
- dashpot
- dustband
- arrangement
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- 238000010521 absorption reaction Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 230000002579 anti-swelling effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 5
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 34
- 239000000428 dust Substances 0.000 abstract description 10
- 239000012535 impurity Substances 0.000 abstract description 9
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 239000010727 cylinder oil Substances 0.000 abstract description 3
- YAFQFNOUYXZVPZ-UHFFFAOYSA-N liproxstatin-1 Chemical compound ClC1=CC=CC(CNC=2C3(CCNCC3)NC3=CC=CC=C3N=2)=C1 YAFQFNOUYXZVPZ-UHFFFAOYSA-N 0.000 description 12
- 238000009825 accumulation Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a kind of good dustbands of low temperature seal performance energy, include the epipharynx of the outer lip of outer layer and internal layer, and epipharynx is arcuate structure, and the arc back of the body and the medial surface of outer lip of arcuate structure bond；One end of arcuate structure is upper dustproof lip, and the other end of arcuate structure is lower dustproof lip, and V-arrangement dashpot is formed between outer lip and the lower dustproof lip；It is provided with several compressed springs between two inclined surface of V-arrangement dashpot, the both ends of spring described in each are fixedly connected with two inclined surface of V-arrangement dashpot respectively；The spring of compression is set, since spring is constantly in compressive state, so when dustproof lip and outer lip are shunk instantly, the spring of compression can be stretched out gradually and so that lower dustproof lip is tightly attached to always on the outer surface of piston rod, outer lip is tightly attached on the madial wall of V-arrangement dashpot, stablizes so that dustband can be installed in V-arrangement dashpot, and in-oil cylinder oil will not be leaked out, the impurity such as dust will not enter in oil cylinder, have the function that dust-proof.
Description
Technical field
The utility model belongs to hydraulic pressure dust control technology field, and in particular to a kind of low temperature seal performance energy is good dust-proof
Circle.
Background technology
Cylinders of Construction Machinery, long-term work is in severe operating mode, therefore one dustband of setting is outer to prevent outside oil cylinder
Impurity, grieshoch, the moisture on boundary etc. enter system to destroy oil cylinder and sealing system, and existing dustband only focuses on dustband and work
The water proof and dust proof of stopper rod contact surface is arranged upper dustproof lip and lower dustproof lip in the junction of dustband and piston rod, thus may be used
To prevent extraneous impurity, grieshoch from entering system；It is especially eastern but since the material for preparing dustband is expanded with heat and contract with cold
The winter in north, the low temperature environment spent subzero 30 so that dustband shrinkage is too serious, so as to cause slow between epipharynx and outer lip more
Jet-bedding is ineffective to the adjusting of the distance between epipharynx and outer lip, so lead to oil leak and the entrance of dust.
Utility model content
The purpose of this utility model is that causing dustband when temperature is too low for expanding with heat and contract with cold, between epipharynx and outer lip
Dashpot ineffective problem adjusted to the distance between epipharynx and outer lip, the utility model provides to be sealed under a kind of low temperature
Dustband of good performance.
The technical solution adopted in the utility model is as follows：
A kind of good dustband of low temperature seal performance energy, includes the epipharynx of the outer lip of outer layer and internal layer, epipharynx is arc
Structure, the arc back of the body and the medial surface of outer lip of arcuate structure bond；One end of arcuate structure be upper dustproof lip, arcuate structure it is another
End is lower dustproof lip, and V-arrangement dashpot is formed between the outer lip and the lower dustproof lip；Two inclined surface of V-arrangement dashpot it
Between be provided with several compressed springs, the both ends of spring described in each are solid with two inclined surface of V-arrangement dashpot respectively
Fixed connection；The pressometer for integrating pressure detecting and alarm is provided in upper dustproof lip.
It further limits, the arcuate structure is hollow structure, and the inside of hollow structure is cavity, is filled in cavity anti-
Swelling agent.
It further limits, is offered in the lower dustproof lip and the lubricating oil of recess in the arcuate structure is led back into hydraulic cylinder
Through-hole；It is fixed with filter screen in the through-hole.
It further limits, the outer lip is made of adiabatic hard material, and the epipharynx is made of heat absorption elastic material.
In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：
1. the utility model is solved because temperature is too low, the degree of lower dustproof lip and outer lip contraction is too big, and it is slow to have exceeded V-arrangement
The range that jet-bedding itself is adjusted, the spring of compression is arranged in problem that cannot be dust-proof, since spring is constantly in compressive state, therefore
And when dustproof lip and outer lip are shunk instantly, the spring of compression can be stretched out gradually and so that lower dustproof lip is tightly attached to always piston rod
On outer surface, outer lip is tightly attached on the madial wall of V-arrangement dashpot, stablizes so that dustband can be installed in V-arrangement dashpot,
And in-oil cylinder oil will not be leaked out, the impurity such as dust will not enter in oil cylinder, have the function that dust-proof；
Pressometer is used to detect the pressure on epipharynx, when temperature change is little, can be used for judging arcuate structure
The amount of the oil accumulation of interior recess, to determine the need for by the oil discharge of the interior recess of arcuate structure, because working as arcuate structure
Interior recess accumulation oil it is more when, the power that arcuate structure is born is bigger.
2. cavity is arranged, and anti-swelling agent is filled in cavity, when the temperature decreases, arcuate structure is shunk, and counter is expanded
Agent can expand so that the volume of itself becomes larger and supports cavity greatly, so that the side of arcuate structure expands outwardly, finally
So that upper dustproof lip, lower dustproof lip and piston rod fit closely, oil leakage and dust is avoided to enter in oil cylinder.
3. the oil of recess can inhale the heat that piston rod and lower dustproof lip, the friction of upper dustproof lip generate in arcuate structure
It receives, and oil cylinder is led back to by through-hole, on the one hand form oil circulation, play the role of cooling, on the other hand, avoid oil in arc
Recess, which accumulates, in structure makes the pressure of recess in arcuate structure increase, and generates the harm of explosion；Filter screen is fixed in through-hole,
For filtering the impurity in arcuate structure in the oil of recess.
4. outer lip is made of adiabatic hard material, avoid extraneous improper power that dustband is made to deform or fall off, it is adiabatic
The influence for avoiding ambient temperature from expanding with heat and contract with cold dustband；Epipharynx is made of heat absorption elastic material, and heat absorption can quickly will be in oil
Partial heat absorb, ensure that the temperature change of epipharynx is small, elasticity enables to epipharynx convenient for when anti-swelling agent expands
Deformation, so that lower dustproof lip and upper dustproof lip are tightly attached on piston rod lateral wall.
Description of the drawings
The utility model will illustrate by example and with reference to the appended drawing,
Fig. 1 is the structural schematic diagram of the utility model；
Wherein：1- outer lips；2- epipharynxs；3-V shape dashpots；Dustproof lip under 4-；The upper dustproof lips of 5-；6- cavitys；7- through-holes；8-
Filter screen；9- springs；10- pressometers.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.It elaborates to the utility model with reference to Fig. 1.
Embodiment one
The technical solution of the present embodiment is：A kind of good dustband of low temperature seal performance energy, includes 1 He of outer lip of outer layer
The epipharynx 2 of internal layer, epipharynx 2 are arcuate structure, and the arc back of the body and the medial surface of outer lip 1 of arcuate structure bond；One end of arcuate structure
The other end for upper dustproof lip 5, arcuate structure is lower dustproof lip 4, and it is slow that V-arrangement is formed between the outer lip 1 and the lower dustproof lip 4
Jet-bedding 3；It is provided with several compressed springs 9 between two inclined surface of V-arrangement dashpot 3, the two of spring 9 described in each
End is fixedly connected with two inclined surface of V-arrangement dashpot 3 respectively；It is one that collection pressure detecting and alarm are provided in upper dustproof lip 5
The pressometer 10 of body.
As shown in Figure 1, between the lateral wall of side and piston rod of the lower dustproof lip 4 towards oil cylinder, there are certain gaps；
Lower dustproof lip 4 and upper dustproof lip 5 are interference fitted with piston rod lateral wall, and outer lip 1 is interference fitted with groove madial wall；V-arrangement is slow
Jet-bedding 3 is for adjusting the distance between outer lip 1 and lower dustproof lip 4, and when the temperature decreases, outer lip 1 and lower dustproof lip 4 are shunk, V-arrangement
The width of dashpot 3 broadens so that and outer lip 1, lower dustproof lip 4 can be fitted closely respectively in trench wall and piston rod outer wall,
Avoid the entrance of the impurity such as leakage and the dust of oil；When the temperature increases, outer lip 1 and the expansion of lower dustproof lip 4, V-arrangement dashpot
Width narrows so that outer lip 1, lower dustproof lip 4 can respectively be fitted closely in trench wall and piston rod outer wall, avoid letting out for oil
The entrance of the impurity such as dew and dust；
When temperature is too low, the degree of lower dustproof lip 4 and the contraction of outer lip 1 is too big, has exceeded V-arrangement dashpot 3 itself adjusting
The spring 9 of compression is arranged in range, since spring 9 is constantly in compressive state, so when dustproof lip 4 and outer lip 1 are shunk instantly,
The spring 9 of compression can be stretched out gradually and so that lower dustproof lip 4 is tightly attached to always on the outer surface of piston rod, outer lip is tightly attached to V-arrangement
On the madial wall of dashpot 3, stablize so that dustband can be installed in V-arrangement dashpot 3, and will not make in-oil cylinder oil
It leaks out, the impurity such as dust will not enter in oil cylinder, have the function that dust-proof；
The pressure that pressometer 10 is used to detect on epipharynx 1 can be used for judging arcuate structure when temperature change is little
Interior recess oil accumulation amount, to determine the need for by the interior recess of arcuate structure oil discharge because work as arc knot
When the oil of the interior recess accumulation of structure is more, the power that arcuate structure is born is bigger, when the pressure on epipharynx 1 is more than setting value, pressure
Force measurement device 10 sends out alarm, and staff is notified to detect and stop the movement of piston rod.
Embodiment two
On the basis of embodiment one, the technical solution of the present embodiment is：The arcuate structure is hollow structure, hollow knot
The inside of structure is cavity 6, and anti-swelling agent is filled in cavity 6.
As shown in Figure 1, when the temperature decreases, arcuate structure is shunk, and anti-swelling agent (such as water) can expand so that itself
Volume becomes larger and supports cavity 6 greatly, final so that upper dustproof lip 5, lower anti-so that the side of arcuate structure expands outwardly
Dirt lip 4 is fitted closely with piston rod, and oil leakage and dust is avoided to enter in oil cylinder.
Embodiment three
On the basis of embodiment one, the technical solution of the present embodiment is：It is offered in the lower dustproof lip 4 by the arc
The lubricating oil of recess leads back to the through-hole 7 of hydraulic cylinder in shape structure；Filter screen 8 is fixed in the through-hole 7.
As shown in Figure 1, the oil of recess can generate piston rod and lower dustproof lip 4, the friction of upper dustproof lip 5 in arcuate structure
Heat absorption, and oil cylinder is led back to by through-hole 7, on the one hand forms oil circulation, play the role of cooling, on the other hand, keep away
Exempt from oil recess in arcuate structure and accumulate the pressure increase for making recess in arcuate structure, generates the harm of explosion；Through-hole 7 be
The deflector hole opened up along the vertical direction of lower dustproof lip 4 in lower dustproof lip 4；Filter screen 8 is fixed in through-hole 7, for filtering
Impurity in arcuate structure in the oil of recess.
Example IV
On the basis of embodiment one or two or three, the technical solution of the present embodiment is：The outer lip 1 is by adiabatic hard material
Material is made, and the epipharynx 2 is made of heat absorption elastic material.
As shown in Figure 1, outer lip 1 is made of adiabatic hard material, avoid extraneous improper power make dustband deform or
It falls off, thermal insulation avoids the influence that ambient temperature expands with heat and contract with cold to dustband；Epipharynx 2 is made of heat absorption elastic material, and heat absorption can be with
Quickly the partial heat in oil is absorbed, ensures that the temperature change of epipharynx 1 is small, elasticity is convenient for when anti-swelling agent expands, can
So that epipharynx 1 deforms upon, so that lower dustproof lip 4 and upper dustproof lip 5 are tightly attached on piston rod lateral wall.
Claims (4)
1. a kind of good dustband of low temperature seal performance energy, which is characterized in that the epipharynx of outer lip (1) and internal layer including outer layer
(2), epipharynx (2) is arcuate structure, and the arc back of the body and the medial surface of outer lip (1) of arcuate structure bond；One end of arcuate structure is upper
The other end of dustproof lip (5), arcuate structure is lower dustproof lip (4), and V is formed between the outer lip (1) and the lower dustproof lip (4)
Shape dashpot (3)；Several compressed springs (9), each institute are provided between two inclined surface of V-arrangement dashpot (3)
The both ends for stating spring (9) are fixedly connected with two inclined surface of V-arrangement dashpot (3) respectively；Collection pressure is provided on upper dustproof lip (5)
The pressometer (10) that power detects and alarm is integrated.
2. a kind of good dustband of low temperature seal performance energy according to claim 1, which is characterized in that the arc knot
Structure is hollow structure, and the inside of hollow structure is cavity (6), and anti-swelling agent is filled in cavity (6).
3. a kind of good dustband of low temperature seal performance energy according to claim 1, which is characterized in that dust-proof under described
The through-hole (7) that the lubricating oil of recess in the arcuate structure is led back to hydraulic cylinder is offered on lip (4)；It is solid in the through-hole (7)
Surely there is filter screen (8).
4. according to a kind of good dustband of low temperature seal performance energy of claim 1-3 any one of them, which is characterized in that institute
It states outer lip (1) to be made of adiabatic hard material, the epipharynx (2) is made of heat absorption elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721872970.6U CN207880075U (en) | 2017-12-28 | 2017-12-28 | A kind of good dustband of low temperature seal performance energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721872970.6U CN207880075U (en) | 2017-12-28 | 2017-12-28 | A kind of good dustband of low temperature seal performance energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207880075U true CN207880075U (en) | 2018-09-18 |
Family
ID=63504082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721872970.6U Active CN207880075U (en) | 2017-12-28 | 2017-12-28 | A kind of good dustband of low temperature seal performance energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207880075U (en) |
-
2017
- 2017-12-28 CN CN201721872970.6U patent/CN207880075U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A dustproof ring with good sealing performance at low temperatures Effective date of registration: 20231102 Granted publication date: 20180918 Pledgee: Ziyang Branch of Bank of China Ltd. Pledgor: ZIYANG SUNFULL MECHANICAL & ELECTRICAL CO.,LTD. Registration number: Y2023980063355 |