CN113137261A - Three-stage telescopic mechanism with two symmetrically arranged groups of guide rods for hydraulic support - Google Patents
Three-stage telescopic mechanism with two symmetrically arranged groups of guide rods for hydraulic support Download PDFInfo
- Publication number
- CN113137261A CN113137261A CN202110598502.9A CN202110598502A CN113137261A CN 113137261 A CN113137261 A CN 113137261A CN 202110598502 A CN202110598502 A CN 202110598502A CN 113137261 A CN113137261 A CN 113137261A
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- CN
- China
- Prior art keywords
- guide sleeve
- guide
- base
- hydraulic support
- primary
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- 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
- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 239000003245 coal Substances 0.000 description 5
- 238000005065 mining Methods 0.000 description 5
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
Abstract
The invention relates to the technical field of hydraulic supports, in particular to a three-stage telescopic mechanism with two symmetrically arranged guide rods for a hydraulic support, which comprises a top beam, the guide rods, a primary guide sleeve, a secondary guide sleeve, a base and an upright post, wherein the top beam is connected with the guide rods; the rear side of the base protrudes upwards to form a left base groove and a right base groove, the two secondary guide sleeves are respectively in sliding fit with the base grooves, the primary guide sleeve is inserted into the secondary guide sleeve and is in sliding fit with the secondary guide sleeve, the guide rod is inserted into the primary guide sleeve and is in sliding fit with the primary guide sleeve, the upper portion of the guide rod is hinged to the top beam, and four upright posts are arranged between the top beam and the base. This structure adopts tertiary flexible guide arm mechanism, and minimum highly the same, the highest altitude increase has increased the difference in height of support, and support adaptability further improves.
Description
Technical Field
The invention relates to the technical field of hydraulic supports, in particular to a three-stage telescopic mechanism with two symmetrically arranged guide rods for a hydraulic support.
Background
The hydraulic support is a hydraulic power device which generates supporting force by utilizing liquid pressure and realizes automatic movement to support and manage a top plate, and is indispensable supporting equipment for comprehensive mechanized coal mining. The hydraulic support is mainly used for a horizontal plane and a long-wall fully-mechanized mining face for once caving coal mining and full-height mining of a slowly-inclined thick coal seam with the angle less than or equal to 10 degrees along a bottom plate, and is also suitable for a horizontal layered caving coal fully-mechanized mining face of a steeply-inclined super-thick coal seam. Traditional hydraulic support mainly adopts two-stage flexible and only a set of telescopic machanism, leads to the lift not steady enough, and easy fracture.
Disclosure of Invention
The invention aims to overcome the defects of the technology and provides a three-stage telescopic mechanism for a hydraulic support, which is symmetrically provided with two groups of guide rods.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a hydraulic support is with tertiary telescopic machanism of two sets of guide arms of symmetrical arrangement which characterized in that: comprises a top beam, a guide rod, a primary guide sleeve, a secondary guide sleeve, a base and an upright post; the rear side of the base protrudes upwards to form a left base groove and a right base groove, the two secondary guide sleeves are respectively in sliding fit with the base grooves, the primary guide sleeve is inserted into the secondary guide sleeve and is in sliding fit with the secondary guide sleeve, the guide rod is inserted into the primary guide sleeve and is in sliding fit with the primary guide sleeve, the upper portion of the guide rod is hinged to the top beam, and four upright posts are arranged between the top beam and the base.
Preferably, the upper parts of the primary guide sleeve and the secondary guide sleeve are respectively provided with a guiding and limiting mechanism.
Preferably, the guide limiting mechanism is a limiting pin, annular bosses are respectively arranged on the peripheries of the bottoms of the guide rod, the primary guide sleeve and the secondary guide sleeve, and the upper parts of the annular bosses are limited by the limiting pin.
Preferably, the cross sections of the primary guide sleeve and the secondary guide sleeve are square.
The hydraulic support has the advantages that the guide rod mechanism on the traditional hydraulic support is of a two-stage telescopic structure at most, the three-stage telescopic guide rod mechanism is adopted, the lowest height is the same, the highest height is increased, the height difference value of the support is increased, and the adaptability of the support is further improved.
The guide rod mechanisms of the traditional hydraulic support are arranged into a group, and the guide rod mechanisms are symmetrically arranged left and right by adopting two groups of guide rod structures, so that the unbalance loading resistance of the support is enhanced.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is an enlarged view of a portion of the present invention;
fig. 4 is a cross-sectional view of fig. 3.
Detailed Description
The following detailed description of the preferred embodiments will be made with reference to the accompanying drawings. Referring to fig. 1 and 2, a hydraulic support uses a three-stage telescopic mechanism with two symmetrically arranged guide rods, which comprises a top beam 1, guide rods 2, a first-stage guide sleeve 3, a second-stage guide sleeve 4, a base 5 and a vertical column 7; the rear side of the base protrudes upwards to form a left base groove and a right base groove, the two base grooves are of an integral structure with the base, so that the integral structure is more stable, the top beam is lifted more stably, the two secondary guide sleeves are respectively in sliding fit with the base grooves, the primary guide sleeve is inserted into the secondary guide sleeve and is in sliding fit with the secondary guide sleeve, the guide rod is inserted into the primary guide sleeve and is in sliding fit with the primary guide sleeve, the primary guide sleeve 3 is matched with the secondary guide sleeve 4, the primary guide sleeve is ensured not to be separated through a limiting pin 8, the extension amount of the primary guide sleeve 3 relative to the secondary guide sleeve 4 is ensured, and the limiting pin 8 is fixed through a split pin 9. The guide rod 2 and the primary guide sleeve 3 adopt the same structure in the same way, and the secondary guide sleeve 4 and the base 5 adopt the same structure in the same way. The upper part of the guide rod is hinged with the top beam, and four upright posts are arranged between the top beam and the base. The upright post is a hydraulic rod and drives the top beam to lift up and down.
In order to be capable of radially limiting the primary guide sleeve and the secondary guide sleeve, the upper parts of the primary guide sleeve and the secondary guide sleeve are respectively provided with a guiding and limiting mechanism 6.
The mechanism is installed on a vertical guide rod type hydraulic support and used for keeping the posture of the support, a guide rod is hinged to a support top beam, the guide rod, a first-level guide sleeve, a second-level guide sleeve and a base are sequentially matched layer by layer from high to low, all the parts extend out by a fixed amount according to the design requirement through a guide limiting device, all the parts are ensured not to be separated, and when the support receives the unbalance loading in the horizontal direction or the left and right directions, the guide rod mechanism plays a balance role.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides a hydraulic support is with tertiary telescopic machanism of two sets of guide arms of symmetrical arrangement which characterized in that: comprises a top beam, a guide rod, a primary guide sleeve, a secondary guide sleeve, a base and an upright post; the rear side of the base protrudes upwards to form a left base groove and a right base groove, the two secondary guide sleeves are respectively in sliding fit with the base grooves, the primary guide sleeve is inserted into the secondary guide sleeve and is in sliding fit with the secondary guide sleeve, the guide rod is inserted into the primary guide sleeve and is in sliding fit with the primary guide sleeve, the upper portion of the guide rod is hinged to the top beam, and four upright posts are arranged between the top beam and the base.
2. The hydraulic support of claim 1, wherein the two sets of guide rod three-stage telescoping mechanisms are symmetrically arranged, and the hydraulic support is characterized in that: and the upper parts of the primary guide sleeve and the secondary guide sleeve are respectively provided with a guide limiting mechanism.
3. The hydraulic support of claim 1, wherein the two sets of guide rod three-stage telescoping mechanisms are symmetrically arranged, and the hydraulic support is characterized in that: the guide limiting mechanism is a limiting pin, annular bosses are arranged on the bottom peripheries of the guide rod, the primary guide sleeve and the secondary guide sleeve respectively, and the upper portions of the annular bosses are limited by the limiting pin.
4. The hydraulic support of claim 1, wherein the two sets of guide rod three-stage telescoping mechanisms are symmetrically arranged, and the hydraulic support is characterized in that: the cross sections of the first-stage guide sleeve and the second-stage guide sleeve are square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598502.9A CN113137261A (en) | 2021-05-31 | 2021-05-31 | Three-stage telescopic mechanism with two symmetrically arranged groups of guide rods for hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598502.9A CN113137261A (en) | 2021-05-31 | 2021-05-31 | Three-stage telescopic mechanism with two symmetrically arranged groups of guide rods for hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113137261A true CN113137261A (en) | 2021-07-20 |
Family
ID=76815836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110598502.9A Pending CN113137261A (en) | 2021-05-31 | 2021-05-31 | Three-stage telescopic mechanism with two symmetrically arranged groups of guide rods for hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113137261A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003198A (en) * | 2009-09-03 | 2011-04-06 | 李秋生 | Hydraulic support without tail beam |
| CN203655314U (en) * | 2013-12-24 | 2014-06-18 | 天津鹏程煤矿设备有限公司 | Light thin seam guide rod-type hydraulic support |
| CN205047241U (en) * | 2015-09-28 | 2016-02-24 | 沈阳天安科技股份有限公司 | Tunnel quick travel formula advance support support |
| CN110094222A (en) * | 2019-04-29 | 2019-08-06 | 北京诚田恒业煤矿设备有限公司 | A kind of advanced hydraulic prop in underground mine use double-guide-bar type erosion control tunnel |
| CN111577349A (en) * | 2020-04-20 | 2020-08-25 | 郑州四维机电装备制造有限公司 | Hydraulic support |
| CN112576295A (en) * | 2020-12-16 | 2021-03-30 | 郑州煤矿机械集团股份有限公司 | Supporting advancing mechanism for transportation roadway |
-
2021
- 2021-05-31 CN CN202110598502.9A patent/CN113137261A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003198A (en) * | 2009-09-03 | 2011-04-06 | 李秋生 | Hydraulic support without tail beam |
| CN203655314U (en) * | 2013-12-24 | 2014-06-18 | 天津鹏程煤矿设备有限公司 | Light thin seam guide rod-type hydraulic support |
| CN205047241U (en) * | 2015-09-28 | 2016-02-24 | 沈阳天安科技股份有限公司 | Tunnel quick travel formula advance support support |
| CN110094222A (en) * | 2019-04-29 | 2019-08-06 | 北京诚田恒业煤矿设备有限公司 | A kind of advanced hydraulic prop in underground mine use double-guide-bar type erosion control tunnel |
| CN111577349A (en) * | 2020-04-20 | 2020-08-25 | 郑州四维机电装备制造有限公司 | Hydraulic support |
| CN112576295A (en) * | 2020-12-16 | 2021-03-30 | 郑州煤矿机械集团股份有限公司 | Supporting advancing mechanism for transportation roadway |
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Legal Events
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210720 |