CN109519203A - Laterally scissor bottom raising mechanism - Google Patents
Laterally scissor bottom raising mechanism Download PDFInfo
- Publication number
- CN109519203A CN109519203A CN201811583392.3A CN201811583392A CN109519203A CN 109519203 A CN109519203 A CN 109519203A CN 201811583392 A CN201811583392 A CN 201811583392A CN 109519203 A CN109519203 A CN 109519203A
- Authority
- CN
- China
- Prior art keywords
- lift
- raising mechanism
- scissor
- transverse direction
- right part
- 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
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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
-
- 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
- E21D23/08—Advancing mechanisms
Abstract
The invention discloses a kind of scissor bottom raising mechanisms of transverse direction, hydraulic support foundation includes left part and right part, it is connected between left part and right part by bridge crossing plate, gap position between left part and right part is equipped with pusher rod, laterally scissor bottom raising mechanism includes two lift bottom upper frames, the middle part of two lift bottom upper frames is hinged with left part and right part respectively, and the upper end for lifting bottom upper frame is connected by carried bottom jack, and the lower end of lift bottom upper frame is set to the top of the pusher rod.The scissor bottom raising mechanism of the transverse direction is arranged in the front of bridge crossing plate.Solve the problems, such as that girdle bottom raising mechanism space is small, lift bottom effect is poor.
Description
Technical field
The present invention relates to a kind of hydraulic support for low coal seam more particularly to a kind of scissor bottom raising mechanisms of transverse direction.
Background technique
The hydraulic support major function of thin coal bed fully-mechanized mining face is exactly supporting, girdle support apparatus is guaranteed reliable
Support capacity will meet the following: 1, have enough safety coefficients；2, beam body thickness cannot be too thick, it is necessary to meet three
The mating requirement of machine crosses machine height with enough；3, there is enough pedestrian spaces；4, there is good shifting frame ability.
Above several points require while bracket beam body meets that three machines are mating to be required as far as possible by top beam enlarged in thickness, to obtain
Higher safety coefficient.This results in upper and lower beam body to see that space is smaller, can not meet while setting conventional bottom raising mechanism
The each design height of bracket.For the coal seam of some soft seats, bracket must be provided with reliable bottom raising mechanism, just can guarantee bracket
Frame can smoothly be moved.For many years, major Mei Ji producer has all selected that conventional bottom raising mechanism is arranged, and can only go into the well in bracket
After being installed, rise to rack-mount again using height.This just virtually increases the labor intensity of down-hole miner.
Summary of the invention
The object of the present invention is to provide a kind of scissor bottom raising mechanisms of transverse direction.
The purpose of the present invention is what is be achieved through the following technical solutions:
The scissor bottom raising mechanism of transverse direction of the invention, hydraulic support foundation includes left part and right part, between left part and right part
It is connected by bridge crossing plate, the gap position between left part and right part is equipped with pusher rod, which is characterized in that the scissor lift of transverse direction
Bottom mechanism includes two lift bottom upper frames, and two lift bottom upper frames are hinged with the left part and right part respectively, described to lift the upper of bottom upper frame
End is connected by carried bottom jack.
As seen from the above technical solution provided by the invention, the scissor lift bottom machine of transverse direction provided in an embodiment of the present invention
Structure solves the problems, such as that girdle bottom raising mechanism space is small, lift bottom effect is poor.
Detailed description of the invention
Fig. 1 is the scissor bottom raising mechanism structural schematic diagram of transverse direction provided in an embodiment of the present invention.
Fig. 2 is that pedestal of the embodiment of the present invention starts lifting status figure.
Fig. 3 is that bracket of the embodiment of the present invention integrally lifts bottom schematic diagram.
In figure:
1. carried bottom jack, 2. lift bottom upper frames, 3. pusher rods, 4 pedestals.
Specific embodiment
The embodiment of the present invention will be described in further detail below.What is be not described in detail in the embodiment of the present invention is interior
Appearance belongs to the prior art well known to professional and technical personnel in the field.
The scissor bottom raising mechanism of transverse direction of the invention, preferable specific embodiment is:
Hydraulic support foundation includes left part and right part, is connected between left part and right part by bridge crossing plate, left part and right part it
Between gap position be equipped with pusher rod, the scissor bottom raising mechanism of transverse direction includes two lift bottom upper frames, and two lift bottom upper frames divide
Not hinged with the left part and right part, the upper end of the lift bottom upper frame is connected by carried bottom jack.
The hinge joint of the lift bottom upper frame and pedestal is set to the middle part of lift bottom upper frame, and the lower end of the lift bottom upper frame is set to institute
State the top of pusher rod.
The scissor bottom raising mechanism of the transverse direction is arranged in the front of the bridge crossing plate.
The scissor bottom raising mechanism of transverse direction of the invention, solves the problems, such as girdle bottom raising mechanism, solves girdle lift bottom
Mechanism space is small, lifts the problem of bottom effect difference.
Specific embodiment:
Scissor bottom raising mechanism principle:
Straight down, carried bottom jack is vertical arrangement to the lift bottom power of conventional bottom raising mechanism, above and below Bracket in Thin Coal Seam
Distance is smaller between beam body, therefore considers to convert vertical lift bottom power for cross force by lever mechanism, can will thus lift bottom thousand
Jin top is using lateral arrangement, and under the premise of guaranteeing has lift bottom amount enough, can satisfy bottom raising mechanism can be any high in bracket
Degree state normal mounting and work.
If carried bottom jack can be extended to longest state when not needing lift bottom by Fig. 1, lift bottom upper frame is in retracted state；
Such as Fig. 2, when needing to lift bottom, carried bottom jack epicoele feed liquor, jack is shunk, when lift bottom upper frame contacts pusher rod
When, pedestal starts to lift.
The convergent force of jack acts on A point, and the torque to B point is M1=F1×L1；When lift bottom upper frame touches pusher rod
When can to pusher rod generate a directed force F2, F2Torque to B point is M2=F2×L2, and M2=M1；Two lift bottom upper frames pair
2 × F of active force of pusher rod22 × F of reaction force2xThe as lift bottom power of bottom raising mechanism generation.
Such as Fig. 3, as 2 × F2x×L3> G × L4When, the movement of lift bottom can be completed, advancing jack is then cooperated to complete to draw
Frame movement.
Beneficial effects of the present invention:
Carried bottom jack uses the pattern of lateral arrangement, it is ensured that has sufficient space to place jack, to guarantee bracket
It is measured with enough lift bottoms.
The bottom raising mechanism of conventional type is typically located at pedestal front gap bridge postlaminar part, and the pattern bottom raising mechanism is arranged in bottom
Seat gap bridge front, the lift bottom force arm L of this bottom raising mechanism just made3It is greater than the bottom raising mechanism of conventional type, to increase
Lift bottom torque.
Bottom raising mechanism is arranged in base bridge front, dismounts and repairs convenient for underground.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (3)
1. a kind of scissor bottom raising mechanism of transverse direction, hydraulic support foundation includes left part and right part, is passed through between left part and right part
Bridge plate connection, the gap position between left part and right part are equipped with pusher rod, which is characterized in that the scissor bottom raising mechanism of transverse direction
Including two lift bottom upper frames, two lift bottom upper frames are hinged with the left part and right part respectively, and the upper end of the lift bottom upper frame passes through
Carried bottom jack connection.
2. the scissor bottom raising mechanism of transverse direction according to claim 1, which is characterized in that the hinge of lift the bottom upper frame and pedestal
Contact is set to the middle part of lift bottom upper frame, and the lower end of the lift bottom upper frame is set to the top of the pusher rod.
3. the scissor bottom raising mechanism of transverse direction according to claim 1 or 2, which is characterized in that the lateral scissor lift bottom machine
Structure is arranged in the front of the bridge crossing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811583392.3A CN109519203A (en) | 2018-12-24 | 2018-12-24 | Laterally scissor bottom raising mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811583392.3A CN109519203A (en) | 2018-12-24 | 2018-12-24 | Laterally scissor bottom raising mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109519203A true CN109519203A (en) | 2019-03-26 |
Family
ID=65797090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811583392.3A Pending CN109519203A (en) | 2018-12-24 | 2018-12-24 | Laterally scissor bottom raising mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109519203A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190576Y (en) * | 2008-05-26 | 2009-02-04 | 郑州四维机电设备制造有限公司 | Thrust gear suitable for hydraulic support |
| CN101694162A (en) * | 2009-10-27 | 2010-04-14 | 三一重型装备有限公司 | Hydraulic support and bottom lifting device thereof |
| CN201874598U (en) * | 2010-12-09 | 2011-06-22 | 郑州四维机电设备制造有限公司 | Shield type hydraulic support for thin coal seam |
| CN201884040U (en) * | 2010-12-09 | 2011-06-29 | 郑州四维机电设备制造有限公司 | Base lifting mechanism for hydraulic support in thin coal seam |
| CN102536286A (en) * | 2010-12-09 | 2012-07-04 | 郑州四维机电设备制造有限公司 | Shield-type hydraulic support for thin coal seam |
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| CN203463132U (en) * | 2013-08-29 | 2014-03-05 | 郑州煤矿机械集团股份有限公司 | Crotch type base of hydraulic support for coal mines |
| CN103821548A (en) * | 2014-01-22 | 2014-05-28 | 三一重型装备有限公司 | Bottom lifting mechanism and hydraulic support |
| WO2015038089A1 (en) * | 2013-09-13 | 2015-03-19 | Общество С Ограниченной Ответственностью "Корум Групп" | Mechanized support section |
| CN104564116A (en) * | 2015-01-04 | 2015-04-29 | 内蒙古北方重工业集团有限公司 | Bottom lifting mechanism and hydraulic support with same |
| CN204591328U (en) * | 2015-05-11 | 2015-08-26 | 山东天晟煤矿装备有限公司 | Bottom lifting mechanism of hydraulic support |
| CN107939432A (en) * | 2017-12-13 | 2018-04-20 | 中煤北京煤矿机械有限责任公司 | Mine hydraulic bracket derives from bottom raising mechanism |
| CN209483404U (en) * | 2018-12-24 | 2019-10-11 | 中煤北京煤矿机械有限责任公司 | Laterally scissor bottom raising mechanism |
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2018
- 2018-12-24 CN CN201811583392.3A patent/CN109519203A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190576Y (en) * | 2008-05-26 | 2009-02-04 | 郑州四维机电设备制造有限公司 | Thrust gear suitable for hydraulic support |
| CN101694162A (en) * | 2009-10-27 | 2010-04-14 | 三一重型装备有限公司 | Hydraulic support and bottom lifting device thereof |
| CN201874598U (en) * | 2010-12-09 | 2011-06-22 | 郑州四维机电设备制造有限公司 | Shield type hydraulic support for thin coal seam |
| CN201884040U (en) * | 2010-12-09 | 2011-06-29 | 郑州四维机电设备制造有限公司 | Base lifting mechanism for hydraulic support in thin coal seam |
| CN102536286A (en) * | 2010-12-09 | 2012-07-04 | 郑州四维机电设备制造有限公司 | Shield-type hydraulic support for thin coal seam |
| CN203463132U (en) * | 2013-08-29 | 2014-03-05 | 郑州煤矿机械集团股份有限公司 | Crotch type base of hydraulic support for coal mines |
| CN103410546A (en) * | 2013-08-29 | 2013-11-27 | 郑州煤矿机械集团股份有限公司 | Crotch type base of hydraulic support for coal mines |
| WO2015038089A1 (en) * | 2013-09-13 | 2015-03-19 | Общество С Ограниченной Ответственностью "Корум Групп" | Mechanized support section |
| CN103821548A (en) * | 2014-01-22 | 2014-05-28 | 三一重型装备有限公司 | Bottom lifting mechanism and hydraulic support |
| CN104564116A (en) * | 2015-01-04 | 2015-04-29 | 内蒙古北方重工业集团有限公司 | Bottom lifting mechanism and hydraulic support with same |
| CN204591328U (en) * | 2015-05-11 | 2015-08-26 | 山东天晟煤矿装备有限公司 | Bottom lifting mechanism of hydraulic support |
| CN107939432A (en) * | 2017-12-13 | 2018-04-20 | 中煤北京煤矿机械有限责任公司 | Mine hydraulic bracket derives from bottom raising mechanism |
| CN209483404U (en) * | 2018-12-24 | 2019-10-11 | 中煤北京煤矿机械有限责任公司 | Laterally scissor bottom raising mechanism |
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