CN202731944U - Hinged type suspended hydraulic column - Google Patents

Hinged type suspended hydraulic column Download PDF

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Publication number
CN202731944U
CN202731944U CN 201220328878 CN201220328878U CN202731944U CN 202731944 U CN202731944 U CN 202731944U CN 201220328878 CN201220328878 CN 201220328878 CN 201220328878 U CN201220328878 U CN 201220328878U CN 202731944 U CN202731944 U CN 202731944U
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CN
China
Prior art keywords
cylinder body
cylinder
stop collar
cylindrical
inner circle
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Expired - Fee Related
Application number
CN 201220328878
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Chinese (zh)
Inventor
李炳文
王建武
洪建云
王振乾
孙泽勋
刘敏
李丽
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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Priority to CN 201220328878 priority Critical patent/CN202731944U/en
Application granted granted Critical
Publication of CN202731944U publication Critical patent/CN202731944U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a hinged type suspended hydraulic column. A movable column body is integrally welded with an upper lug support; a cylinder body is integrally welded with a lower lug support; a cylinder hoop is integrally welded with the outer circle at the upper part of the cylinder body; the lower part of the movable column body is mounted in the cylinder body in a sleeving way; the outer circle of the movable column body, the inner circle of the cylinder body, a limiting sleeve and a sealing assembly form a smaller changeable sealing cavity body in a surrounding way; the inner circle of the movable column body, the inner circle of the cylinder body, the upper lug support, the lower lug support and the sealing assembly form a larger changeable sealing cavity body in a surrounding way; a connector, an oil pipe and a cross are welded at the lower part of the outer circle of the cylinder body, and the larger changeable sealing cavity body is communicated with the lower part of the outer circle of the cylinder body; and a three-way connector is welded at the upper part of the outer circle of the cylinder body, and the smaller changeable sealing cavity body is communicated with the upper part of the outer circle of the cylinder body. The hinged type suspended hydraulic column is suitable for a hydraulic support of a coal mining working surface of an underground coal mine, and is simple in structure and process, good in stability, high in bearing capacity, light in weight and low in cost.

Description

Articulated type suspension hydraulic vertical prop
Technical field
The utility model relates to a kind of articulated type suspension hydraulic vertical prop, is particularly useful for the hyperstatic hydraulic support of mechanical coal mining work plane.
Background technology
Hydraulic support is one of requisite equipment of fully-mechanized coalface under the coal mine.The hydraulic support of at present colliery use generally is the hydraulic support of four-bar linkage structure, also claim four bar hydraulic supports, the upper and lower movement locus of four bar hydraulic support back timbers is a lemniscate, see specifically that the Coal Industry Press published in 1993 " the 5th piece of chapter 4 second section content of coal mine support handbook and publishing house of China Mining University in Eleventh Five-Year Plan institution of higher education national planning teaching material " mining machinery " book of publishing in 2010 about the support apparatus content.Because the design feature of four bar hydraulic supports, the hydraulic vertical prop of its use are two flexible hydraulic vertical props and with the flexible hydraulic vertical prop of the list of extension bar; Two flexible hydraulic vertical props exist complex structure, poor reliability, support force is little, cost is high, the problems such as ability are pressed on shock resistance ground; Exist the problems such as impulse stroke is little, the scope of application is little, adjusting is inconvenient, shock resistance ground pressure ability with the flexible hydraulic vertical prop of the list of extension bar.Therefore, the hydraulic vertical prop New Product of development of new has important practical significance and historic significance.
The utility model content
Technical problem: the purpose of this utility model is the deficiency that overcomes in the prior art, provides a kind of simple in structure, the articulated type suspension hydraulic vertical prop that supporting capacity is large, impulse stroke is large, cost is low.
Technical scheme: articulated type suspension hydraulic vertical prop of the present utility model comprises that cylinder alive, cylinder body, upper ear seat, lower ear base, cylinder hoop, clip, stop collar, wedge back-up ring, double-screw bolt, dust ring, guide ring, three-way interface, interface, oil pipe, four-way, bearing bar and black box, oil block up; Described upper ear seat is welded as a whole with the cylinder of living, and lower ear base and cylinder body are welded as a whole, and cylinder hoop and cylinder body cylindrical upper end are welded as a whole, and the cylinder of living is sleeved in the cylinder body; The top of described cylinder cylindrical alive and cylinder body inner circle is provided with stop collar, and stop collar top is provided with double-screw bolt, and the inside and outside circle of stop collar is respectively equipped with inside and outside round stop collar black box; The bottom of described cylinder cylindrical alive and cylinder body inner circle is provided with clip, the upper/lower terminal of clip is respectively equipped with upper and lower clip black box, is formed than I change seal chamber by the cylindrical of the cylinder of living, inner circle, stop collar, clip, front band black box and the inside and outside round stop collar black box encirclement of cylinder body; Form larger variable seal chamber by the inner circle of the cylinder of living, inner circle, upper ear seat, lower ear base and the encirclement of lower catch hoop black box of cylinder body; The cylindrical lower end of described cylinder body is provided with the interface of the larger variable seal chamber of connection, and interface is provided with oil pipe, and oil pipe is provided with four-way; The cylindrical upper end of cylinder body is provided with and is communicated with the three-way interface that becomes seal chamber than I.
The cylindrical of described double-screw bolt and stop collar contact surface is provided with the wedge back-up ring; Be provided with guide ring in the described stop collar inner circle groove, be provided with lower guide ring in the described clip cylindrical groove.Described upper ear seat is provided with the jointed shaft round tube hole, and described lower ear base is provided with the jointed shaft round tube hole; Have the groove of installing dust ring in the described double-screw bolt.
Beneficial effect: the utility model is applicable on the hyperstatic hydraulic support of coal mine lower roof plate supporting, compared with prior art, it is simple in structure, and safety is good, reliability is strong, supporting capacity is large, impulse stroke is large, removes and installs conveniently, and shock resistance ground pressure energy power is strong, the scope of application is wide, easy to adjust, cost is low, has widely practicality.
Description of drawings
Fig. 1 is shape assumption diagram of the present utility model.
Fig. 2 is sectional structure chart of the present utility model.
Among the figure: upper ear seat-14, lower ear base-1, the cylinder-7 of living, cylinder body-2, cylinder hoop-8, stop collar-10, wedge back-up ring-16, double-screw bolt-12, clip-5, dust ring-15, three-way interface-18, interface-23, oil pipe-22, four-way-21, bearing bar-20, upper and lower guide ring-11,4, upper and lower clip black box-6,3, inside and outside round stop collar black box-9,17, oil blocks up-19,24,25,26,27,28, blind hole-13, jointed shaft round tube hole-30,29.
The specific embodiment
The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:
As shown in Figure 1 and Figure 2, articulated type suspension hydraulic vertical prop mainly contains upper ear seat 14, lower ear base 1, cylinder 7 alive, cylinder body 2, cylinder hoop 8, stop collar 10, wedge back-up ring 16, double-screw bolt 12, blind hole 13, clip 5, dust ring 15, upper and lower guide ring 11,4, three-way interface 18, interface 23, oil pipe 22, four-way 21, bearing bar 20 and black box 3,6,9,17, oil stifled 19,24,25,26,27,28 forms.Described upper ear seat 14 is welded as a whole with the cylinder 7 of living, and upper ear seat 14 is provided with jointed shaft round tube hole 30; Lower ear base 1 is welded as a whole with cylinder body 2, and lower ear base 1 is provided with jointed shaft round tube hole 29.Cylinder hoop 8 is welded as a whole with cylinder body 2 upper end cylindricals, and the cylinder 7 of living is sleeved in the cylinder body 2; The top of described cylinder alive 7 cylindricals and cylinder body 2 inner circles is provided with stop collar 10, be provided with guide ring 11 in the described stop collar 10 inner circle grooves, stop collar 10 upper ends are provided with double-screw bolt 12, and double-screw bolt 12 available metal materials are made, and also the nonmetals such as available nylon, glass fiber reinforced plastic, plastics are made.Described double-screw bolt 12 is provided with wedge back-up ring 16 with the cylindrical of stop collar 10 contact surfaces, has some blind holes 13 on the upper surface of double-screw bolt 12, and double-screw bolt 12 inner circles are provided with dust ring 15 with the cylinder 7 cylindrical contact surfaces of living.The inside and outside circle of stop collar 10 is respectively equipped with inside and outside round stop collar black box 9,17; The bottom of described cylinder alive 7 cylindricals and cylinder body 2 inner circles is provided with clip 5, and clip 5 is installed in the groove of offering cylinder alive 7 cylindrical bottoms, and described clip 5 is the two halves circular ring structure, is provided with lower guide ring 4 in the clip 5 cylindrical grooves; The upper/lower terminal of clip 5 is respectively equipped with upper and lower clip black box 6,3; Lower guide ring 4 and upper and lower clip black box 6,3 and cylinder body 2 internal circular surfaces form the sealing relationship that is slidingly matched; Cylinder body 2 inner circle tops are provided with step, groove and screw thread, are provided with stop collar 10, wedge back-up ring 16, double-screw bolt 12, upper guide ring 11, dust ring 15 and inside and outside round stop collar black box 9,17 between cylinder body 2 inner circle upper step, groove and screw thread and cylinder 7 cylindricals alive; Stop collar 10, double-screw bolt 12, upper guide ring 11, inner circle stop collar black box 9 and dust ring 15 form the sealing relationship that is slidingly matched with cylinder 7 outer round surface of living.By the inner circle of the cylindrical of the cylinder 7 of living, cylinder body 2, stop collar 10, inside and outside round stop collar black box 9,17 and front band black box 6 surround and form than I change seal chamber; The cylindrical upper end of described cylinder body 2 is provided with and is communicated with the three-way interface 18 that becomes seal chamber than I; Be respectively equipped with three oil stifled 19,26,27 on three liquid in-out through holes of three-way interface 18.Form larger variable seal chamber by the inner circle of the cylinder 7 of living, inner circle, upper ear seat 14, lower ear base 1 and 3 encirclements of lower catch hoop black box of cylinder body 2; Described cylinder body 2 cylindrical lower ends are provided with interface 23, oil pipe 22 and the four-way 21 of the larger variable seal chamber of connection, interface 23 is communicated with oil pipe 22 welding, oil pipe 22 is communicated with four-way 21 welding, be respectively equipped with three oil on three liquid in-out through holes of four-way 21 and block up 24,25,28, be provided with bearing bar 20 between four-way 21 and cylinder body 2 outer round surface.
During suspension hydraulic vertical prop setting prop, highly pressurised liquid enters the larger variable seal chamber of suspension hydraulic vertical prop by the liquid in-out through hole of cylinder body 2 cylindrical bottom interfaces 23, injection along with liquid, the liquid that becomes seal chamber than I of column flows back to fuel tank by the liquid in-out through hole of cylinder body 2 cylindrical top three-way interfaces 18, thereby reaches the purpose of setting prop.
When post falls in the suspension hydraulic vertical prop, the liquid in-out through hole of highly pressurised liquid by cylinder body 2 cylindrical top three-way interfaces 18 becomes the seal chamber filling liquid to column than I, injection along with liquid, the liquid of the larger variable seal chamber of column is let out oil sump tank by the liquid in-out through hole of cylinder body 2 cylindrical bottom interfaces 23, thereby reaches the purpose of falling post.
The every injection of highly pressurised liquid and releasing once, column just supports and falls post once, and hydraulic vertical prop is just finished an operation cycle like this.

Claims (5)

1. articulated type suspension hydraulic vertical prop is characterized in that: it comprises cylinder alive (7), cylinder body (2), upper ear seat (14), lower ear base (1), cylinder hoop (8), clip (5), stop collar (10), wedge back-up ring (16), double-screw bolt (12), dust ring (15), upper and lower guide ring (11,4), three-way interface (18), interface (23), oil pipe (22), four-way (21), bearing bar (20) and black box (3,6,9,17), oil stifled (19,24,25,26,27,28); Described upper ear seat (14) is welded as a whole with the cylinder (7) of living, and lower ear base (1) is welded as a whole with cylinder body (2), and cylinder hoop (8) is welded as a whole with cylinder body (2) upper end cylindrical, and the cylinder (7) of living is sleeved in the cylinder body (2); The top of described cylinder alive (7) cylindrical and cylinder body (2) inner circle is provided with stop collar (10), and stop collar (10) top is provided with double-screw bolt (12), is respectively equipped with inside and outside round stop collar black box (9,17) in the inside and outside round groove of stop collar (10); Formed than I change seal chamber by the cylindrical of the cylinder (7) of living, inner circle, stop collar (10), clip (5), front band black box (6) and inside and outside round stop collar black box (9, the 17) encirclement of cylinder body (2); Form larger variable seal chamber by the inner circle of the cylinder (7) of living, inner circle, upper ear seat (14), lower ear base (1) and lower catch hoop black box (3) encirclement of cylinder body (2); The bottom of described cylinder alive (7) cylindrical and cylinder body (2) inner circle is provided with clip (5), the up and down two ends of clip (5) are respectively equipped with upper and lower clip black box (6,3), the cylindrical lower end of described cylinder body (2) is provided with the interface (23) of the larger variable seal chamber of connection, interface (23) is communicated with oil pipe (22) welding, and oil pipe (22) is communicated with four-way (21) welding; The cylindrical upper end of cylinder body (2) is provided with and is communicated with the three-way interface (18) that becomes seal chamber than I.
2. articulated type suspension hydraulic vertical prop according to claim 1 is characterized in that: described double-screw bolt (12) is provided with wedge back-up ring (16) with the cylindrical of stop collar (10) contact surface.
3. articulated type suspension hydraulic vertical prop according to claim 1 is characterized in that: be provided with guide ring (11) in described stop collar (10) the inner circle groove, be provided with lower guide ring (4) in described clip (5) the cylindrical groove.
4. articulated type suspension hydraulic vertical prop according to claim 1, it is characterized in that: described upper ear seat (14) is provided with jointed shaft round tube hole (30), and described lower ear base (1) is provided with jointed shaft round tube hole (29).
5. articulated type suspension hydraulic vertical prop according to claim 1, it is characterized in that: described double-screw bolt has the groove of installing dust ring (15) in (12).
CN 201220328878 2012-07-09 2012-07-09 Hinged type suspended hydraulic column Expired - Fee Related CN202731944U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220328878 CN202731944U (en) 2012-07-09 2012-07-09 Hinged type suspended hydraulic column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220328878 CN202731944U (en) 2012-07-09 2012-07-09 Hinged type suspended hydraulic column

Publications (1)

Publication Number Publication Date
CN202731944U true CN202731944U (en) 2013-02-13

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102704959A (en) * 2012-07-09 2012-10-03 中国矿业大学 Hinged type suspension hydraulic column
CN105221177A (en) * 2015-10-29 2016-01-06 中国矿业大学 Four posts are floating shakes formula hydraulic support

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102704959A (en) * 2012-07-09 2012-10-03 中国矿业大学 Hinged type suspension hydraulic column
WO2014008715A1 (en) * 2012-07-09 2014-01-16 中国矿业大学 Hinged-connection type suspended hydraulic stand column
CN102704959B (en) * 2012-07-09 2015-04-29 中国矿业大学 Hinged type suspension hydraulic column
CN105221177A (en) * 2015-10-29 2016-01-06 中国矿业大学 Four posts are floating shakes formula hydraulic support

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C14 Grant of patent or utility model
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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130213

Termination date: 20150709

EXPY Termination of patent right or utility model