CN101984221A

CN101984221A - Suspended hydraulic column

Info

Publication number: CN101984221A
Application number: CN 201010189693
Authority: CN
Inventors: 李炳文; 张晓青; 赵建宝; 杨银生
Original assignee: JINHU XIAOQINGQING ELECTROMECHANICAL DEVICE CO Ltd
Current assignee: JINHU XIAOQINGQING ELECTROMECHANICAL DEVICE CO Ltd
Priority date: 2010-05-28
Filing date: 2010-05-28
Publication date: 2011-03-09

Abstract

The invention discloses a suspended hydraulic column, wherein, a hemispheroid is connected with a cylinder to form a top cover (1) and a base (5); a limit boss (21) is arranged on an external cylindrical surface at the lower part of a movable column (4) which is a circular straight cylinder; a welding block (7) is welded on an outer wall of a middle cover (2) which is a short circular tube, and the welding block (7) is equipped with a liquid in-out through hole (20); a welding block (6) is welded on an external cylindrical surface at the lower part of a cylinder body (3) which is a circular straight tube, and the welding block (6) is provided with a liquid in-out through hole (19); the base (5) is welded with the cylinder body (3) to form a whole; the liquid in-out through hole (19) on the welding block (6) of the base (5) is communicated with a cavity of the cylinder body (3); the movable column (4) is arranged in the cavity of the cylinder body (3); and the middle cover (2) is arranged above the cylinder body (3) for fixing the movable column (4). The suspended hydraulic column has the advantages of compact and rational structure, good stability, high strength of the cylinder body and the movable column, strong bearing capacity, long operating stroke, light weight, low cost and wide practicability.

Description

Suspended type hydraulic vertical prop

Technical field

The present invention relates to a kind of suspended type hydraulic vertical prop, be particularly useful on the hydraulic support of down-hole, mine fully-mechanized mining working.

Background technology

Hydraulic support is one of down-hole, mine fully-mechanized mining working imperative equipment, the use of hydraulic support brings great convenience to fully-mechanized mining working, the hydraulic support that uses in China mine is by different standing support, shield and the chock shields of being divided into design feature of its support pattern to top board, and column is one of requisite parts of hydraulic support, but with regard to column, exist following problem: 1) under the effect of bump, cylinder body sharply expands, because of seal failure causes interior leakage; 2) complex structure, reliability is low, and the damage amount is many; 3) anufacturability is poor, the cost of production height; 4) maintenance difficult, the maintenance maintenance amount is big, the labour intensity height.Therefore, the hydraulic vertical prop of hydraulic support is improved have great importance.

Summary of the invention

The objective of the invention is: a kind of suspended type hydraulic vertical prop is provided, and compact conformation is reasonable, the intensity height, and cost of production is low, and supporting capacity is big.

Technical solution of the present invention is: this hydraulic vertical prop comprises top cover, live post, middle cover, cylinder body and base; Hemisphere connects cylinder and forms top cover; The post of living is the straight tube of circle, and the bottom external cylindrical surface of the post of living is provided with positive stop lug boss; Middle cover is one a section short pipe, and the inwall of short pipe is a ladder hole, welding block of outer wall welding of short pipe, and welding block is provided with the liquid in-out through hole; Cylinder body is the circle straight tube, welding block of welding on the bottom external cylindrical surface of circle straight tube, and welding block is provided with the liquid in-out through hole; Hemisphere connects cylinder and forms base; The bottom of the cylinder insertion cylinder body of base is integrally welded, liquid in-out through hole on the welding block of base is communicated with the inner chamber of cylinder body, the top of the cylinder insertion post alive of top cover is integrally welded, the post of living is installed in the inner chamber of cylinder body, the outer wall of post alive and the inwall of cylinder body form separate space, the fixing post of living of middle cover is installed above cylinder body, and the liquid in-out through hole on the welding block of middle cover is communicated with separate space.

Wherein, on the bottom external cylindrical surface of post of living, clip is installed, clip seal is installed respectively up and down.

Wherein, guide ring is set on the clip, the outer round surface of guide ring and the inner surface of cylinder body are slidingly matched, and post alive can be slided vertically relatively at inner chamber of cylinder block.

Wherein, middle cover is one a section short pipe, short round tube inner wall is a ladder hole, the inwall of its going up or down stairway through hole is provided with a plurality of ring-shaped grooves, form slipper seal by dust ring, guide ring, sealing ring and back-up ring with the external surface of the post of living in the ring-shaped groove of epimere ladder hole and cooperate, the ring-shaped groove of hypomere ladder hole interior by sealing ring and back-up ring and be connected steel wire and cylinder body on cylindrical be sealedly connected and fixed.

Wherein, top cover or base are connected and composed by otic placode and pipe.

The course of work: highly pressurised liquid enters in the cavity of post alive and cylinder body by the liquid in-out through hole of cylinder body, and along with the injection of liquid, when reaching certain pressure, live post and top cover rise upright supports when rising to certain altitude; When post fell in column, the liquid in-out through hole by middle cover injected liquid in the separate space that live post and cylinder body form, and when pressure reached certain pressure, the liquid in live post and the cylinder body released by the liquid in-out through hole of cylinder body; The every injection of liquid and releasing once, column just supports and falls post once, and pillar is just finished a working cycles like this.

The present invention has the following advantages: 1, compact conformation is reasonable, the sealing good stability, and supporting capacity is big, and impulse stroke is long, and cost of production is low; 2, the live intensity height of post, column in light weight, antiseptic property height, long service life; Only need when 3, dismantling middle cover is shed, the post of living can be taken out from cylinder body, remove and install conveniently, working service is convenient, has practicality widely.

Description of drawings

Fig. 1 is the main shape assumption diagram of looking of the present invention.

Fig. 2 is a sectional structure chart of the present invention.

Among the figure: 1 top cover, 2 middle covers, 3 cylinder bodies, 4 posts alive, 5 bases, 6,7 welding blocks, 8 connect steel wire, 9 sealing rings, 10 back-up rings, 11 dust rings, 12 guide rings, 13 sealing rings, 14 back-up rings, 15,16 seals, 17 clips, 18 guide rings, 19,20 liquid in-out through holes, 21 positive stop lug boss.

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing.

As shown in Figure 1, 2, this hydraulic vertical prop comprises top cover 1, post 4 alive, middle cover 2, cylinder body 3 and base 5; Hemisphere connects cylinder and forms top cover 1; The post 4 of living is the straight tube of circle, and the bottom external cylindrical surface of the post 4 of living is provided with positive stop lug boss 21; Middle cover 2 is one a section short pipe, and the inwall of short pipe is a ladder hole, welding block 7 of outer wall welding of short pipe, and welding block 7 is provided with liquid in-out through hole 20; Cylinder body 3 is the circle straight tube, welding block 6 of welding on the bottom external cylindrical surface of circle straight tube, and welding block 6 is provided with liquid in-out through hole 19; Hemisphere connects cylinder and forms base 5; The bottom of the cylinder insertion cylinder body 3 of base 5 is integrally welded, liquid in-out through hole 19 on the welding block 6 of base 5 is communicated with the inner chamber of cylinder body 3, the top of the cylinder insertion post 4 alive of top cover 1 is integrally welded, the post 4 of living is installed in the inner chamber of cylinder body 3, the outer wall of post alive and the inwall of cylinder body form separate space, the middle cover 2 fixing posts 4 of living are installed above cylinder body 3, and the liquid in-out through hole 20 on the welding block 7 of middle cover 2 is communicated with separate space.

Wherein, clip 17 is installed on the bottom external cylindrical surface of post 4 of living, clip 17

seal

15,16 is installed respectively up and down.

Wherein, guide ring 18 is set on the clip 17, the inner surface of the outer round surface of guide ring 18 and cylinder body 3 is slidingly matched, and post 4 alive can be slided vertically relatively at cylinder body 3 inner chambers.

Wherein, middle cover 2 is one a section short pipe, short round tube inner wall is a ladder hole, the inwall of its going up or down stairway through hole is provided with a plurality of ring-shaped grooves, form slipper seal by dust ring 11, guide ring 12, sealing ring 13 and back-up ring 14 with the external surface of the post 4 of living in the ring-shaped groove of epimere ladder hole and cooperates, the ring-shaped groove of hypomere ladder hole is interior by sealing ring 9 and back-up ring 10 and be connected steel wire 8 and cylinder body 3 upper end cylindricals are sealedly connected and fixed.

Wherein, top cover 1 or base 5 are connected and composed by otic placode and pipe.

The course of work: highly pressurised liquid enters in the cavity of post 4 alive and cylinder body 3 by the liquid in-out through hole 19 of cylinder body 3, and along with the injection of liquid, when reaching certain pressure, live post 4 and top cover 1 rise upright supports when rising to certain altitude; When post fell in column, the liquid in-out through hole 20 by middle cover 2 injected liquid in the separate space that live post 4 and cylinder body 3 form, and when pressure reached certain pressure, the liquid in live post and the cylinder body released by the liquid in-out through hole 19 of cylinder body 3; The every injection of liquid and releasing once, column just supports and falls post once, and pillar is just finished a working cycles like this.

Claims

1. suspended type hydraulic vertical prop is characterized in that: this hydraulic vertical prop comprises top cover (1), live post (4), middle cover (2), cylinder body (3) and base (5); Hemisphere connects cylinder and forms top cover (1); The post (4) of living is the straight tube of circle, and the bottom external cylindrical surface of the post (4) of living is provided with positive stop lug boss (21); Middle cover (2) is one a section short pipe, and the inwall of short pipe is a ladder hole, an outer wall welding welding block (7) of short pipe, and welding block (7) is provided with liquid in-out through hole (20); Cylinder body (3) is the circle straight tube, a welding welding block (6) on the bottom external cylindrical surface of circle straight tube, and welding block (6) is provided with liquid in-out through hole (19); Hemisphere connects cylinder and forms base (5); The bottom of the cylinder insertion cylinder body (3) of base (5) is integrally welded, liquid in-out through hole (19) on the welding block (6) of base (5) is communicated with the inner chamber of cylinder body (3), the top of the cylinder insertion post alive (4) of top cover (1) is integrally welded, the post (4) of living is installed in the inner chamber of cylinder body (3), the outer wall of post alive and the inwall of cylinder body form separate space, the fixing post (4) of living of middle cover (2) is installed in the top of cylinder body (3), and the liquid in-out through hole (20) on the welding block (7) of middle cover (2) is communicated with separate space.

2. a kind of suspended type hydraulic vertical prop according to claim 1 is characterized in that: wherein, on the bottom external cylindrical surface of post (4) of living, clip (17) is installed, clip (17) seal (15,16) is installed respectively up and down.

3. a kind of suspended type hydraulic vertical prop according to claim 2, it is characterized in that: wherein, guide ring (18) is set on the clip (17), and the inner surface of the outer round surface of guide ring (18) and cylinder body (3) is slidingly matched, and post alive (4) can be slided vertically relatively at cylinder body (3) inner chamber.

4. a kind of suspended type hydraulic vertical prop according to claim 1, it is characterized in that: wherein, middle cover (2) is one a section short pipe, short round tube inner wall is a ladder hole, the inwall of its going up or down stairway through hole is provided with a plurality of ring-shaped grooves, form slipper seal by dust ring (11), guide ring (12), sealing ring (13) and back-up ring (14) with the external surface of the post (4) of living in the ring-shaped groove of epimere ladder hole and cooperate, the ring-shaped groove of hypomere ladder hole interior by sealing ring (9) and back-up ring (10) and be connected steel wire (8) and cylinder body (3) on cylindrical be sealedly connected and fixed.

5. a kind of suspended type hydraulic vertical prop according to claim 1 is characterized in that: wherein, top cover (1) or base (5) are connected and composed by otic placode and pipe.