CN109264612A - Snap ring for hydraulic jack - Google Patents
Snap ring for hydraulic jack Download PDFInfo
- Publication number
- CN109264612A CN109264612A CN201811484630.5A CN201811484630A CN109264612A CN 109264612 A CN109264612 A CN 109264612A CN 201811484630 A CN201811484630 A CN 201811484630A CN 109264612 A CN109264612 A CN 109264612A
- Authority
- CN
- China
- Prior art keywords
- snap ring
- hydraulic jack
- cylinder barrel
- notch
- circular arc
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/43—Pyrotechnical jacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/05—Hydraulic jacks
- B66F2700/055—Jacks with a single cylinder
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
Snap ring for hydraulic jack of the invention, hydraulic jack includes: cylinder barrel, guide sleeve, snap ring, cylinder cap and movable post, cylinder barrel is sleeved on the excircle of movable post, guide sleeve and cylinder cap are housed on the circumferencial direction between cylinder barrel and movable post, snap ring is mounted in cylinder barrel, in annular groove between guide sleeve and cylinder cap, annular groove is opened on cylinder barrel, snap ring forms an annulus by three sections of snap ring circular arcs, the end face of snap ring circular arc is snap ring notch, snap ring notch is 40 ° to 50 ° relative to the excircle of snap ring circular arc or the angle of inner periphery, the snap ring notch of adjacent snap ring circular arc is parallel to each other；When disassembling snap ring, demounting tool can be inserted into along inclined snap ring notch, demounting tool generates biggish inside separating force, is detached from annular groove convenient for snap ring, realizes rapid disassembling.
Description
Technical field
The present invention relates to the snap rings in hydraulic pressure of the colliery supporting, for hydraulic jack.
Background technique:
Hydraulic support is fully-mechanized mining working support apparatus, its main function is supporting Stope roof, upkeep operation space,
Working face Harvesting equipment is elapsed, to mitigate labor intensity of workers, single face output is increased substantially, increases economic benefit, realize
Safety in production provides a kind of ideal fully-mechanized mining equipment.
Hydraulic jack can safe normal telescopic supporting, be to guarantee that bracket is working properly, coal mining production activity is in safety
In the case where the key that is normally carried out.Increase recently as bracket scale is remanufactured, occupy the production proportion of Mei Ji enterprise by
Year increases.The recycle value for remanufacturing middle hydraulic jack is huge, and in dismantling assembly during hydraulic jack, card
The dismantling of ring is the important component of hydraulic jack dismounting.Snap ring can be disassembled normally, and hydraulic jack could be disassembled open.Cause
The factors such as working environment, snap ring are easily corroded in cylinder barrel mouth position, and when existing snap ring is disassembled, hawkbill is inserted vertically into, due to card
The reasons such as ring corrosion, so that hawkbill can not rotate, without mobile space when dismantling snap ring, it is big to disassemble difficulty, in dismantling one it is ripe
Practicing work also can only disassemble 4 framves in one day.The damage that cylinder barrel is easily caused during dismantling, increases the cost overhauled.
Summary of the invention
The purpose of present invention is to solve the problems, such as that the existing snap ring disassembly for hydraulic jack is difficult, and provide
A kind of snap ring for hydraulic jack.
In order to complete present invention purpose, the application uses following technical scheme:
A kind of snap ring for hydraulic jack of the invention, hydraulic jack include: cylinder barrel, guide sleeve, snap ring, cylinder cap
And movable post, cylinder barrel are sleeved on the excircle of movable post, and guide sleeve and cylinder cap are housed on the circumferencial direction between cylinder barrel and movable post,
Snap ring is in the annular groove between cylinder barrel, guide sleeve and cylinder cap, and annular groove is opened on cylinder barrel, and snap ring is by three sections of snap ring circular arc groups
At an annulus, in which: the end face of snap ring circular arc is snap ring notch, excircle or inner circle of the snap ring notch relative to snap ring circular arc
The angle in week is 40 ° to 50 °, and the snap ring notch of adjacent snap ring circular arc is parallel to each other；
A kind of snap ring for hydraulic jack of the invention, in which: the snap ring notch is relative to the outer of snap ring circular arc
The angle of circumference or inner periphery is 45 °；
A kind of snap ring for hydraulic jack of the invention, in which: the snap ring is the snap ring of chromium plating；
A kind of snap ring for hydraulic jack of the invention, in which: three sections of snap ring circular arcs are in snap ring circumferencial direction
On radian it is identical.
Snap ring for hydraulic jack of the invention can cut demounting tool along inclined snap ring when disassembling snap ring
Mouth insertion, demounting tool generate biggish inside separating force, are detached from annular groove convenient for snap ring, realize rapid disassembling.It is simultaneously
Prevent that snap ring from corroding and caused by cylinder mouth damage, snap ring treatment is changed to chromium plating, improves roughness requirements.Equally making again
It makes in the production process of hydraulic jack, the use of such snap ring greatly reduces follow-up maintenance and production cost.
Detailed description of the invention
Fig. 1 is the positive schematic diagram of the installation site of the snap ring for hydraulic jack of the invention,
Fig. 2 bows for snap ring to schematic diagram；
In fig. 1 and 2, label 1 is cylinder barrel；Label 2 is guide sleeve；Label 3 is snap ring；Label 4 is cylinder cap；Label 5
For snap ring circular arc；Label 6 is movable post；Label 7 is annular groove；Label 8 is snap ring notch.
Specific embodiment
As shown in Figure 1, hydraulic jack of the invention includes: cylinder barrel 1, guide sleeve 2, snap ring 3, cylinder cap 4 and movable post 6, cylinder
Cylinder 1 is sleeved on the excircle of movable post 6, and guide sleeve 2 and cylinder cap 4, card are housed on the circumferencial direction between cylinder barrel 1 and movable post 6
In the annular groove 7 between cylinder barrel 1, guide sleeve 2 and cylinder cap 4, annular groove 7 is opened on cylinder barrel 1 ring 3.
As shown in Fig. 2, snap ring 3 forms an annulus by three sections of snap ring circular arcs 5, three sections of snap ring circular arcs 5 are in 3 circumference side of snap ring
Upward radian is identical.The end face of snap ring circular arc 5 be snap ring notch 8, snap ring notch 8 relative to snap ring circular arc 5 excircle or
The angle of inner periphery is 40 ° to 50 °, such as: 45 °.The snap ring notch 8 of adjacent snap ring circular arc 5 is parallel to each other.It is used in snap ring 3
Chromium plating process is carried out before.
Above description is explanation of the invention, is not intended to limit the invention, and limited range of the present invention is referring to right
It is required that the present invention can make any type of modification without prejudice to spirit of the invention.
Claims (4)
1. a kind of snap ring for hydraulic jack, hydraulic jack includes: cylinder barrel (1), guide sleeve (2), snap ring (3), cylinder cap
(4) it is sleeved on the excircle of movable post (6) with movable post (6), cylinder barrel (1), the circumferencial direction between cylinder barrel (1) and movable post (6)
It is upper that guide sleeve (2) and cylinder cap (4), annular groove (7) of the snap ring (3) between cylinder barrel (1), guide sleeve (2) and cylinder cap (4) are housed
Interior, annular groove (7) is opened on cylinder barrel (1), and snap ring (3) forms an annulus by three sections of snap ring circular arcs (5), it is characterised in that: card
The end face of ring circular arc (5) is snap ring notch (8), and snap ring notch (8) is relative to the excircle of snap ring circular arc (5) or the folder of inner periphery
Angle is 40 ° to 50 °, and the snap ring notch (8) of adjacent snap ring circular arc (5) is parallel to each other.
2. as described in claim 1 be used for hydraulic jack snap ring, it is characterised in that: the snap ring notch (8) relative to
The excircle of snap ring circular arc (5) or the angle of inner periphery are 45 °.
3. being used for the snap ring of hydraulic jack as claimed in claim 2, it is characterised in that: the snap ring (3) is the card of chromium plating
Ring.
4. being used for the snap ring of hydraulic jack as claimed in claim 3, it is characterised in that: three sections of snap ring circular arcs (5) exist
Radian on snap ring (3) circumferencial direction is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811484630.5A CN109264612A (en) | 2018-12-06 | 2018-12-06 | Snap ring for hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811484630.5A CN109264612A (en) | 2018-12-06 | 2018-12-06 | Snap ring for hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109264612A true CN109264612A (en) | 2019-01-25 |
Family
ID=65186433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811484630.5A Pending CN109264612A (en) | 2018-12-06 | 2018-12-06 | Snap ring for hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109264612A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4890055U (en) * | 1972-02-04 | 1973-10-30 | ||
| CN200952397Y (en) * | 2006-09-19 | 2007-09-26 | 中煤北京煤矿机械有限责任公司 | Cylinder head connection structure for jack and jack with the same connection structure |
| CN201650917U (en) * | 2010-01-08 | 2010-11-24 | 北京中金泰达电液科技有限公司 | Hydraulic servo cylinder with end cover and double clamp ring non-welding structure |
| CN102787852A (en) * | 2012-08-13 | 2012-11-21 | 山东鲁南装备制造有限公司 | Vertical column applied on hydraulic support |
| CN203269458U (en) * | 2013-05-23 | 2013-11-06 | 中煤北京煤矿机械有限责任公司 | Cylinder opening structure of bottom-lifting jack |
| US20170067492A1 (en) * | 2015-09-08 | 2017-03-09 | Luciano Trindade de Sousa Monteiro | Locking system for an actuating cylinder and an actuating cylinder |
| CN209276073U (en) * | 2018-12-06 | 2019-08-20 | 淮南舜立机械有限责任公司 | Snap ring for hydraulic jack |
-
2018
- 2018-12-06 CN CN201811484630.5A patent/CN109264612A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4890055U (en) * | 1972-02-04 | 1973-10-30 | ||
| CN200952397Y (en) * | 2006-09-19 | 2007-09-26 | 中煤北京煤矿机械有限责任公司 | Cylinder head connection structure for jack and jack with the same connection structure |
| CN201650917U (en) * | 2010-01-08 | 2010-11-24 | 北京中金泰达电液科技有限公司 | Hydraulic servo cylinder with end cover and double clamp ring non-welding structure |
| CN102787852A (en) * | 2012-08-13 | 2012-11-21 | 山东鲁南装备制造有限公司 | Vertical column applied on hydraulic support |
| CN203269458U (en) * | 2013-05-23 | 2013-11-06 | 中煤北京煤矿机械有限责任公司 | Cylinder opening structure of bottom-lifting jack |
| US20170067492A1 (en) * | 2015-09-08 | 2017-03-09 | Luciano Trindade de Sousa Monteiro | Locking system for an actuating cylinder and an actuating cylinder |
| CN209276073U (en) * | 2018-12-06 | 2019-08-20 | 淮南舜立机械有限责任公司 | Snap ring for hydraulic jack |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |