CN2921287Y

CN2921287Y - Hydraulic support four linkage rod device

Info

Publication number: CN2921287Y
Application number: CN 200620030546
Authority: CN
Inventors: 罗恩波
Original assignee: SANYI COAL MINE MACHINERY CO Ltd ZHENGZHOU
Current assignee: SANYI COAL MINE MACHINERY CO Ltd ZHENGZHOU
Priority date: 2006-06-29
Filing date: 2006-06-29
Publication date: 2007-07-11
Anticipated expiration: 2016-06-29

Abstract

The utility model relates to a new device with four connecting rods of hydraulic support which is effectively used in miming coal and solves problem of safety in production. Connecting rods of support in singular numbers are arranged at front end and connecting rods of support in even numbers are arranged at rear end, which enable the utility model to have dual structures and advantages of four connecting rods and single swing bar. On a base, a push rod and a push jack connected with the push rod as well as a jack for moving backwards are arranged; furthermore, a stand column with a top beam on the upper part is arranged on the base. A jack for side supporting and a caving shield are provided at rear end of the top beam, meanwhile, the caving shield is positioned on upper part of the front connecting rod and the back connecting rod arranged on the base. At rear end of the caving shield, a tail boom with a jack is provided. A jack for inserted plate connected with the caving shield is provided on lower part of the tail boom and its jack. The utility model has advantages of novel and unique structure, small volume, light weight, easy movement, safe and reliable usage, good stability, high supporting intensity, simple structure, compact dimensions, as well as low cost, convenient transportation and installation, tremendous social and economic benefits.

Description

Novel four linkages of hydraulic support

One, technical field

The utility model relates to novel four linkages of the hydraulic support of using in a kind of coal production.

Two, background technology

Hydraulic support is in the coal mining, the main equipment of comprehensive mechanization work plane, it can reliably and effectively support and control face roof, isolates the goaf, the underground job space that keeps safety, and the mechanization of realization stope and relevant device thereof is passed.Hydraulic support cooperates with coal-winning machine, flexible conveyer and stage loader, has constituted the comprehensive mechanization equipment of frame mining face, has created condition thereby realize highly efficient and productive and safety in production for the colliery underground mining.Therefore, adopting the hydraulic support stand top board is the once important change of contemporary coal-mining technique, it also is the modern important symbol of Coal Production, but, in recent years, along with developing rapidly of coal undertaking, the safety of coal mines problem, problems such as resource utilization is low become increasingly conspicuous, especially medium and small colliery, the working face extraction rate less than 30% of most medium and small collieries, and also security incident occurs frequently, safety of coal mines and resource utilization problem have risen to higher requirement, especially at the improvement of the old-fashioned coal-mining method of medium and small colliery, very urgent, medium and small colliery adopts the support apparatus of which type most important especially.Though tradition comprehensive mining hydraulic bracket advanced technology, supporting performance is superior, but it is too high because of its price for medium and small colliery, invest hugely, be difficult to popularization and application, for this reason, be badly in need of a kind of support apparatus of development, make its safety that had both had fully mechanized mining supporter, stability, it is low to have price again, the advantage that medium and small colliery is easy to accept.

Three, utility model content

Based on present coal industry status of development, actual conditions at medium and small colliery production, the purpose of the utility model just provides novel four linkages of a kind of hydraulic support, can be effective to coal mining, solve the problem of safety in production, the technical scheme of its solution is, it is single before the support connecting rod adopts, back double structure, make its dual structure with four connecting rods and single wobbling pole and advantage, pusher rod and passing jack that links to each other with pusher rod and back slide jack are housed on the base, column is arranged on the base, back timber is equipped with on column top, the back timber rear portion has side to protect jack and caving shield, caving shield places the top of front rod and back link, and front rod and back link are contained on the base, and there are tail boom and tail boom jack in the caving shield rear portion, the plate jack that links to each other with caving shield is equipped with in tail boom and tail boom jack bottom thereof, the utility model novel structure uniqueness, volume is little, and is in light weight, be easy to move, safe and reliable, keeping original hydraulic support good stability, guarantee under enough supporting intensity conditions, make structure simpler, size is compact more, and cost reduces, following transportation and easy for installation, have advantages such as whole strong, the good and safety in production of drawing effectiveness.Needing the work plane of light-duty roof caving coal fully-mechanized mining equipment to have the scope of application widely for general middle and small scale coal mine, particularly half-edge coal seam, is a quantum jump of hydraulic support design, and economic and social benefit is huge.

Four, description of drawings

Fig. 1 is a structural front view of the present utility model.

Fig. 2 is a base portion vertical view of the present utility model.

Fig. 3 is a rear elevation of the present utility model.

Fig. 4 is that front and rear connecting rods is installed A-A to sectional view among Fig. 1 of the present utility model.

Five, the specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.

By Fig. 1, shown in Figure 2, the utility model is, pusher rod 7 and very heavy 9 of passing that links to each other with pusher rod and back slide jack 10 are housed on the base 6, column 8 is arranged on the base 6, a beam 1 is equipped with on column 8 tops, item beam 1 rear portion has side to protect jack 13 and caving shield 2, caving shield 2 places the top of front rod 3 and back link 4, front rod 3 and back link 4 are contained on the base 6, there are tail boom 5 and the very heavy item 11 of tail boom in caving shield 2 rear portions, and the plate jack 12 that links to each other with caving shield 2 is equipped with in tail boom 5 and tail boom jack 11 bottoms thereof.Each very heavy working condition that can be used for transferring this device is as height, gradient, length and width etc.

Safe and reliable in order to guarantee, column 8 is 4, constitutes 4 upright supports bodies; The stable support body (seeing shown in Figure 4) of Dan Houshuan before the bracing frame of caving shield 2 is made of a

front rod

3 and 2 back links 4.

By above-mentioned situation as can be seen, the preceding list of rack rod mechanism's employing of the present utility model back double structure, have quadric chain and single wobbling pole mechanism two-fold advantage, overcome shortcoming separately, it is better than single wobbling pole support stability to have, the characteristics that anti-twisting property is strong can guarantee fully that again the rear portion conveyer has the bigger coal channel of crossing when using as sublevel caving hydrau lic support.

The same existing device of mode of occupation of the present utility model.The utility model is based on present coal in China industrial expansion situation, at the medium and small colliery actual conditions, need at the client, through long research demonstration and in conjunction with domestic repeatedly, outer combining adopted the technology later development, on the basis of analysis and research support characteristics and use experience, studied successfully serial light-duty sectional shelf-unit, support tradition and design have been carried out revolutionary technological break-through, this kind of hydraulic support adopts novel quadric chain liquid, front rod adopts independent whole, back link adopts two in parallel distribution form, break through light hydraulic support design limitation in the past, not only in the intensity that satisfies the support requirement but also have the good stability of conventional heavy-duty support, anti-twisting property is strong, characteristic working curve is good, and the bigger mistake coal channel of rear portion conveyer when guaranteeing to use as sublevel caving hydrau lic support, tool fully mechanized mining supporter safety, good integrity, the characteristics that can move certainly.Overcome traditional small rack single wobbling pole instability again behind the Dan Houshuan before adopting, be used for poor stability when large-inclination-angle coal bed, use cost is high and move shortcomings such as slow, that efficient is low, has strong, in light weight, easy to operate, the advantages such as price is low, convenient transportation of compliance.

The main feature of this device is to keep the hydraulic support good stability, guaranteeing to make structure simpler under enough supporting intensity conditions, and size is compact more, and cost reduces, and down-hole transportation and easy for installation has advantages such as by force whole, the good and safety in production of drawing effectiveness.The work mask that needs the light-duty roof caving coal fully-mechanized mining equipment for general middle-size and small-size ore deposit and particularly half-edge coal seam is the scope of application widely, is a quantum jump of hydraulic support design.Its Application and Development has huge economic and social benefit.

Claims

1, novel four linkages of a kind of hydraulic support, it is characterized in that, pusher rod (7) and passing jack (9) that links to each other with pusher rod and back slide jack (10) are housed on the base (6), column (8) is arranged on the base (6), back timber (1) is equipped with on column (8) top, back timber (1) rear portion has side to protect jack (13) and caving shield (2), caving shield (2) places the top of front rod (3) and back link (4), front rod (3) and back link (4) are contained on the base (6), there are tail boom (5) and tail boom jack (11) in caving shield (2) rear portion, and the plate jack (12) that links to each other with caving shield (2) is equipped with in tail boom (5) and tail boom jack (11) bottom thereof.

2, novel four linkages of hydraulic support according to claim 1 is characterized in that, said column (8) is 4, constitute 4 upright supports bodies.

3, novel four linkages of hydraulic support according to claim 1 is characterized in that, the stable support body of Dan Houshuan before the bracing frame of said caving shield (2) is made of a front rod (3) and 2 back links (4).