CN201224653Y - Gas-liquid linkage over-position buffer device for mine cage - Google Patents
Gas-liquid linkage over-position buffer device for mine cage Download PDFInfo
- Publication number
- CN201224653Y CN201224653Y CNU2008200692159U CN200820069215U CN201224653Y CN 201224653 Y CN201224653 Y CN 201224653Y CN U2008200692159 U CNU2008200692159 U CN U2008200692159U CN 200820069215 U CN200820069215 U CN 200820069215U CN 201224653 Y CN201224653 Y CN 201224653Y
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- CN
- China
- Prior art keywords
- piston
- piston rod
- upper piston
- gas
- cage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 11
- 238000007667 floating Methods 0.000 claims abstract description 7
- 239000006096 absorbing agent Substances 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000003139 buffering effect Effects 0.000 claims description 4
- 239000006071 cream Substances 0.000 claims description 2
- 239000000446 fuel Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 11
- 239000010720 hydraulic oil Substances 0.000 abstract description 10
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 5
- 206010044565 Tremor Diseases 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013017 mechanical damping Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
A gas-liquid linkage over-position buffer device for a mining cage takes a piston rod (4) as a buffer moving member, two sealing pistons are arranged in a cylinder body (18), and the cylinder body is isolated into a structure of a Y-shaped sealing ring (8)
、
Two oil storage cavities are filled with hydraulic oil respectively, and the lower part of the floating piston (13) is
The chamber is filled with high-pressure nitrogen, the piston rod (4) and the upper piston (17) are sleeved together to form a switch valve, the throttle valve (7) and the one-way valve (10) are arranged in the upper piston (17), when the lifting cage is over-positioned and over-discharged, the linkage device acts immediately, and through the mutual compression action of hydraulic oil and gas, impact load is absorbed, the lifting cage can be uniformly reduced, accelerated stop can be ensured, and the occurrence of cage heading accidents can be prevented。
Description
Technical field
The utility model relates to a kind of mine hoisting container carry shock absorber, specifically, is exactly the gas-liquid linked carry shock absorber of mine cage.
Background technology
At present, coal mine shaft lining winding cage system is used to prevent that the shock absorber of carry (cross put, pulleying) from having three kinds of forms: mechanical damping device, spring bumper and rubber draft gear.Their common defects is that absorption impact energy efficient is low, and the antagonistic force that the back that is hit produces is big, does not meet the regulation requirement of " safety regulations in coal mine " the 397th.Particularly can not automatically reset after the stretching steel band in the mechanical damping device, the stressed elongation, must spend long time manually to handle; For rubber draft gear, aging, cracked phenomenon also can take place, follows the string in rubber wherein because of long-time the use, and in a single day fracture by fatigue, damage take place the spring in the spring bumper, and then carry pier jar accident can't be avoided.
ZL98203814.3 discloses a kind of Liquid and gas damper, be characterized in that plunger and cylinder body constitute a liquid chamber, the gas-liquid separator piston matches with cylinder body and forms plunger liquid chamber and air chamber, and throttle governing plug one end is fixed on the cylinder body, and the other end cooperates the formation orifice size with cutoff port on the plunger.Plunger is subjected to impacting when lower compression, drive throttle governing plug moves down and reduces open area to closing spool fully, realizes buffer protection.The shortcoming of this Liquid and gas damper is, because the throttle governing plug adopts is the taper cylinder, the back that is impacted is regulated plug and moved down that stroke is extremely short, the buffer deceleration action is too fast, add anti-bounce-back locking mechanism, the bounce-back that also can make progress automatically of buffering back rammer, cause container to tremble up and down, be absolutely unsafe, can not be used in the safety precaution occasion of coal mine shaft lining lifting container.
Summary of the invention
The gas-liquid linked carry shock absorber of a kind of mine cage that the purpose of this utility model provides.This device is done buffering moving member rather than cylinder body with piston rod, but piston-rod lower end portion be processed with the band sealing member column annular hole slot, constitute the switch valve of coupler lock with piston ring set together.Can't upwards rebound after cage during because of the carry buffer-braking, switch valve SELF CL, cage stop rapidly and tremble, taking for occupant's safety provides guarantee.This significant improvement of carrying out from the device inner structure is the exclusive innovative design of the utility model, its safety precaution occasion that is used in the coal mine shaft lining lifting container is comparatively desirable.Through consulting domestic existing open source information, not seeing the report that the same type structure is arranged.
The beneficial effects of the utility model are: owing to adopted the switch valve of the column loop configuration that links with piston rod, its cushion stroke is regulated the stroke of plug greater than intrinsic tapered column body segment stream, and stroke is ended can coupler lock, therefore when appearring in cage, carry carries out glancing impact, though the tank body braking time is very short, but whole braking procedure all keeps the even acceleration movement that subtracts always, the cushion stroke that has overcome the appearance of original design scheme is too short, it is too fast to slow down, brake not steady, stroke end of a period tank body bounce-back tremble injury occupant's defective has satisfied the regulation requirement of " safety regulations in coal mine " the 397th, if generally promoted the use of active operation significance.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing is the gas-liquid linked carry shock absorber of a mine cage schematic diagram of structure
Among the figure, 1, support girder steel, 2, seal ring, 3, upper cylinder cover, 4, piston rod, 5, seal ring, 6, oily blanking cover, 7, flow regulating valve, 8, y-type seal ring, 9, retracing spring, 10, check valve, 11, charge valve, 12, following cylinder cap, 13, floating piston, 14, poted assemblies, 15, mounting flange, 16, retainer ring, 17, upper piston, 18, cylinder body, 19, bolt.
Among the figure:
-upper oil cavitie,
-lower oil cavitie,
-nitrogen chamber.
The specific embodiment
Two packed-pistons are housed in the cylinder body (18), be upper piston (17) and floating piston (13), upper piston (17) is connected with piston mobile bar (4), piston rod (4) lower end head is sleeved in upper piston (17) centre hole, there is seal ring (5) sealing at the diameter place, with the common switch valve of forming of upper piston (17), piston rod (4) lower end head center bit has fuel feed hole, axle is outer to be equipped with retainer ring (16), and the oilhole on the piston rod (4) communicates in reference position with upper piston (17) in-to-in oil outlet.Because upper piston (17) is sleeved in the cylinder body (18), upper piston (17) just is isolated into cylinder body
Two shoe cream rooms, check valve is housed on the upper piston (17), closes by retracing spring (9), be flow regulating valve (7) again, with oily blanking cover (6) axial restraint, the effect of oily blanking cover (7) is to prevent that check valve (10), retracing spring (9), flow regulating valve (7) from ejecting in upper piston (17).Upper piston (17) uses y-type seal ring (8) sealing with cylinder body (18) inwall, and floating piston (13) seals with poted assemblies (14), and the floating piston cavity of resorption is
The chamber,
The inside, chamber perfusion hydraulic oil,
The inside, chamber inflated with nitrogen can be to cylinder body (18) by the charge valve (11) on the following cylinder cap (12)
The chamber fills high pressure nitrogen, and is manually that valve closing is dead after nitrogen charges.
The chamber is filled into behind the high-pressure inert gas nitrogen back pressure that forms and be can be system the failure-free buffering effect is provided.
Upper cylinder cover (3) is fixed on the cylinder body (18) by bolt (19), mounting flange (15) after the oil cylinder integral installation prepares, by the middle part is fixed on the crossbeam at wellbore bottom or top, a pit shaft is equipped with two pairs, the support girder steel (1) of two piston rod heads withstands the quadrangle I-beam section roof beam structure of weld together with it, and this I-beam section roof beam structure is used for holding up the lifting container of putting.Cylinder body (18) and main parts size are through the plating anti-rust treatment, and whole shock absorber is installed in the protective cover, can use under mal-conditions such as pit shaft trickle.
Concrete course of action is as follows: state when being illustrated as energy disperser and beginning to automatically reset, when lifting container generation carry situation, cage bottom bump I-beam section roof beam structure, the I-beam section roof beam structure promotes piston rod (4) downwards, piston rod (4) makes upper piston (17) center oil outlet be displaced downwardly to switch valve gradually in folding process and closes fully, is stored in
Hydraulic oil in the chamber flows to through upper piston (17) centre hole
The amount in chamber slowly reduces to and stops to flow.This course of action genus is even for the first time to subtract acceleration movement, and in-service time is extremely short, and stroke is limited; After the switch valve stroke Close All that piston rod (4) and upper piston (17) are formed, piston rod (4) promotion upper piston (17) moves down together and compresses
Chamber hydraulic oil, by compression
Chamber hydraulic oil backs down check valve (10), the retracing spring (9) on the upper piston (17), flows to upper oil cavitie through flow regulating valve (7)
Realize secondary speed-reducing, simultaneously
Chamber hydraulic oil promotes floating piston (13) to lower compression again and moves down the compressed nitrogen air chamber
In high pressure nitrogen, produce dual damping, absorb Impact energy, after this slows down, can guarantee container negative subtract acceleration/accel 3g≤-a ≯ 5g, this section stroke is long, in-service time is also longer, so that energy disperser can steadily be decelerated to is slack fully.After energy disperser is fully slack, the check valve (10) in the upper piston (17) under the promotion of retracing spring (9) elastic force, close oil inlet,
Chamber hydraulic oil can't flow to oil
Chamber, energy disperser are just automatically locked motionless, avoid the bounce-back of trembling of lifting container.
After weight was removed, the I-beam section roof beam structure was left in the cage bottom, and the I-beam section roof beam structure drives piston rod (4) and moves up, makes switch valve to open fully, is stored in
High pressure nitrogen in the chamber just promotes
Hydraulic oil in the chamber moves up together,
Hydraulic oil in the chamber is returned by the extruded center of upper piston (17) oil outlet
In the chamber, because
The different events of two chamber volume areas produce difference of pressure, oil return speed are accelerated, and system just gets back to initial protective position in the short period of time rapidly.
The utility model is owing to have secondary speed-reducing, be down-hole, mine lifting container prevent carry cross put, the comparatively desirable safety guard in place such as pulleying.
Claims (1)
1, the gas-liquid linked carry shock absorber of a kind of mine cage, it is characterized in that: piston rod (4) is the buffering moving member, piston rod (4) lower end is with seal ring (5), there is column annular hole slot at the axle journal place, axle head passes upper piston (17) internal diameter, the axle leading section has retainer ring (16), piston rod (4) is combined into a switch valve with upper piston (17), flow regulating valve (7) and check valve (10) are contained in upper piston (17) the inside, upper piston (17) is isolated into two shoe cream rooms up and down by y-type seal ring (8) with cylinder body (18) inner chamber, and top is oil pocket
The bottom is an oil pocket
Floating piston is a nitrogen chamber below (13)
The chamber internal-filling liquid is pressed oil,
The indoor high pressure nitrogen that fills, fuel feed hole are positioned at piston rod (4) center, bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200692159U CN201224653Y (en) | 2008-01-30 | 2008-01-30 | Gas-liquid linkage over-position buffer device for mine cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200692159U CN201224653Y (en) | 2008-01-30 | 2008-01-30 | Gas-liquid linkage over-position buffer device for mine cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201224653Y true CN201224653Y (en) | 2009-04-22 |
Family
ID=40597535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200692159U Expired - Fee Related CN201224653Y (en) | 2008-01-30 | 2008-01-30 | Gas-liquid linkage over-position buffer device for mine cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201224653Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518386A (en) * | 2018-05-09 | 2018-09-11 | 中山市智泰机电科技有限公司 | A kind of cushion cylinder |
| CN112849844A (en) * | 2021-04-09 | 2021-05-28 | 李峰 | Garbage disposal box structure convenient to protect and used for environmental protection |
-
2008
- 2008-01-30 CN CNU2008200692159U patent/CN201224653Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518386A (en) * | 2018-05-09 | 2018-09-11 | 中山市智泰机电科技有限公司 | A kind of cushion cylinder |
| CN108518386B (en) * | 2018-05-09 | 2024-04-26 | 中山市智泰机电科技有限公司 | Buffer oil cylinder |
| CN112849844A (en) * | 2021-04-09 | 2021-05-28 | 李峰 | Garbage disposal box structure convenient to protect and used for environmental protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20100130 |