CN201110180Y

CN201110180Y - Universal placing bracket with bottom beam

Info

Publication number: CN201110180Y
Application number: CNU2007201406075U
Authority: CN
Inventors: 郝正聪; 郝莉群
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-16
Filing date: 2007-03-16
Publication date: 2008-09-03
Anticipated expiration: 2017-03-16

Abstract

The utility model relates to a general caving supporting stand with a mudsill, which is a supporting facility of a general mining and caving top coal working face and mainly comprises single hydraulic props, the mudsill and a top beam, wherein the lower ends of the single hydraulic props on two ends of the supporting stand are fixedly connected with the mudsill through a screw bolt or are cooperatively connected with the mudsill through a sleeve, and the upper end of the single hydraulic prop in the middle is connected with the top beam in a suspended mode. The supporting stand increases the integrality and the stability of the supporting facility and can prevent roof falling accidents, which guarantees personal security, simultaneously, and the supporting stand alleviates the labor intensity of workers and increases the working efficiency.

Description

The general support of putting of band bottom girder

Technical field

The utility model relates to a kind of support, is used for the general roof timbering of adopting top-coal caving face in colliery.

Background technology

General taking and placing top coal (the being called for short general putting) work plane in the colliery, roof fall accident are the very big hidden danger that personal safety was produced, threatened in influence.The surperficial reason of analyzing roof fall accident is that excessive, the soft group of roof pressure puts coal hydraulic prop excessive or that set up and just do not wait.Its basic reason is not connect mutually between the hydraulic prop, independent roof supporting separately, and post when impacting, takes place when hydraulic prop is subjected to unusual external force (roof weighting, blow out and collapse post and rock crash etc.) in the poor stability of pillar easily, causes roof fall.

In addition, the general work plane of putting moves when establishing support and advancing transporter, must remove middle hydraulic prop earlier, and then install again, and hydraulic prop frequently props up, removes in the middle of causing, and working strength of workers is big, inefficiency.

The utility model content

The technical problems to be solved in the utility model provides a kind of simple in structure, is easy to the general support of putting of the combined type band bottom girder that supporting is stable is installed, both can increase the stability of hydraulic prop, reduce the generation of roof fall accident, can reduce labour intensity again, raise labour efficiency.

The general support of putting of the utility model band bottom girder mainly is made up of three hydraulic props, back timber, a foundation beam and a corresponding connector.Bottom girder is placed on perpendicular to rib on the base plate of work plane, under the transporter.The hydraulic prop upper end supporting top beam at bottom girder two ends, the lower end is connected with bolt with bottom girder by connector or is connected with sleeve; The connector that connects with bolt is the footwear plate of fixedlying connected with the hydraulic prop base, by bolt footwear plate and bottom girder are fixed together, the connector that is connected with sleeve is the sleeve that is welded on the bottom girder, and hydraulic prop inserts in the sleeve and is combined together with bottom girder; Hydraulic prop upper end in the middle of the bottom girder hangs with back timber and is connected, and the lower end is supported on the bottom girder, and the intensity of the back-moving spring of this post can be mentioned oil cylinder after should being increased to the pillar unloading, so that support and transporter are pushed ahead.

The general support of putting of the utility model band bottom girder, base plate at work plane is set up bottom girder, hydraulic prop is linked together by connector and bottom girder, the globality and the stability of whole supporting facility have been strengthened, improved shock proof ability, can play preventing that roof fall accident from taking place, guarantee ordinary production, avoid the effect of personal injury.Simultaneously, middle hydraulic prop hangs with back timber and is connected, and moves when establishing support and advancing transporter, and hydraulic prop is suspended on the back timber, needn't prop up repeatedly again, remove, thereby alleviate labor strength, has improved operating efficiency.

Description of drawings

Fig. 1 installs connection diagram for the general support bracket bolt structure of putting of the utility model band bottom girder;

Fig. 2 is that the A of Fig. 1 is to schematic diagram;

Fig. 3 installs connection diagram for the general bracket sleeve tube structure of putting of the utility model band bottom girder;

Fig. 4 is that the A of Fig. 3 is to schematic diagram.

The specific embodiment

By Fig. 1 to Fig. 4 as seen, the general support of putting of the utility model band bottom girder comprises

pillar

2,3, back timber 1, bottom girder 4,

connector

5,6,7 etc.Pillar is generally three hydraulic props, pillar upper end supporting top beam, the pillar lower end at bottom girder two ends is connected with the bottom girder vertical fixing by connector or is connected, and the pillar lower end in the middle of the bottom girder is supported on the bottom girder, and the upper end hangs by connector with back timber and is connected.

The pillar 2 at bottom girder 4 two ends has two kinds with the connected mode of bottom girder 4: first bolt is connected (as shown in Figure 1), and the footwear plate 5 of fixedlying connected with hydraulic prop 2 bases is fixedlyed connected with bottom girder 4 by bolt; It two is that sleeve connects (as shown in Figure 3), and at the two ends of bottom girder 4 welded sleeve 6, hydraulic prop 2 inserts in the sleeves 6, is connected.

The hydraulic prop 3 in the middle of the bottom girder 4 and the connected mode of back timber 1: use bolt that hydraulic prop 3 is hung by connector 7 and be connected on the back timber 1.

The general support of putting of the utility model band bottom girder is assembled in work plane, is torn open and remove.

Moving when establishing support, can use hydraulic prop or other similar equipment (as jack), support integral body is passed forward, avoid frequent twelve Earthly Branches, removed hydraulic prop, can reduce working strength of workers, increase work efficiency.

Claims

1. general support of putting with bottom girder, described support is assembled by connector by three hydraulic props, back timber, a foundation beam; The hydraulic prop lower end that it is characterized in that described bottom girder two ends is connected with bolt with bottom girder or sleeve is connected; Hydraulic prop upper end in the middle of the described bottom girder hangs by connector with back timber and is connected.