CN102337909B

CN102337909B - Socket

Info

Publication number: CN102337909B
Application number: CN201010228364.7A
Authority: CN
Inventors: 李泽宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-16
Filing date: 2010-07-16
Publication date: 2015-03-25
Anticipated expiration: 2030-07-16
Also published as: CN102337909A

Abstract

The invention discloses a socket which is used for a top beam or a bottom beam of a hydraulic bracket for coal mine under the shaft. The socket comprises a socket body (5), socket top faces (8), a device connected with a hydraulic prop and a structure fixed with the top beam and is characterized in that the top faces (8) of the socket extrude out of a top face (10) of the top beam (13) or a bottom face (11) of the bottom beam (14). The bending moment suffered by the top beam or the bottom beam is reduced in such a way that all the top faces (8) of the socket are first in contact with a top plate and a bottom plate, and therefore the aims of reducing weight and cost of a bracket are achieved. The socket disclosed by the invention is particularly suitable for supporting uneven or softer top plates and bottom plates.

Description

A kind of needling

Technical field

The present invention relates to a kind of needling for coal mine underground hydraulic support frame.

Background technology

Hydraulic support divides two large classes, and a class is the support described in " hydraulic prop for sliding mine caps general technical specifications ".As hydraulic prop for moving suspended top beam (Chinese Patent Application No. 88104291.9) and chain suspension type hydraulic support (Chinese Patent Application No. ZL200510070729.7).Another kind of is hydraulic support described in " comprehensive mining hydraulic bracket general technical specifications ".The end face of needling that this two large class hydraulic support is used for being connected with hydraulic prop upper end is all located under the end face of back timber, and the object done like this is to make the end face of back timber keep a complete flat shape, to contact top board preferably.The bottom surface of the same needling be connected with hydraulic prop lower end is all located on the bottom surface of bottom girder, and the bottom surface making bottom girder is plane, to contact base plate preferably.But when run into not ceiling or not flat underside time, just there will be rough with the situation of plane contact, now actual contact point only has three points not on same straight line, and these three points are not often just to the position of needling, back timber or bottom girder is caused to bear huge moment of flexure and moment of torsion, so hydraulic support is often made very heavy, price also can be very high.

Summary of the invention

The technical problem to be solved in the present invention is exactly to overcome above-mentioned shortcoming, provides a kind of and can reduce moment of flexure suffered by back timber and/or bottom girder and moment of torsion, thus alleviate the needling of weight support frame.In order to solve the problem, a kind of needling of the present invention comprises needling body, needling end face, the device be connected with hydraulic prop, with back timber or the structure fixing with bottom girder, it is characterized in that the end face of needling protrudes on the end face of back timber;

A kind of needling on the bottom girder of the hydraulic support of underground coal mine, comprises needling body, needling end face, the device be connected with hydraulic prop, with the structure that bottom girder is fixing, it is characterized in that the bottom surface of needling protrudes under the bottom surface of bottom girder.

Described a kind of needling, the end face that it is characterized in that for the needling of back timber or bottom girder is a part for needling body.

Described a kind of needling, is characterized in that the end face of the needling fixed with back timber is a part for the back timber above needling body.

Described a kind of needling, is characterized in that the end face of the needling fixed with bottom girder is a part for the bottom girder below needling body.

Described a kind of needling, is characterized in that needling end face is offset arrangement relative to needling body in the horizontal direction.

After adopting such structure, the end face of a part of needling just at least can be made directly to contact top board or base plate, the power of hydraulic prop is directly delivered on top, base plate, reduce back timber or the power suffered by bottom girder, thus reach the object that weight reduction reduces cost.This measure not only can be applied on integral top beam and integral bottom girder, also can be applied to by the assembled integral top beam of little back timber or be applied to by the assembled integral bottom girder of little bottom girder, can also use on split back timber as hydraulic prop for moving suspended top beam or split bottom girder, so beneficial effect of the present invention extensively and obviously.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.

Fig. 1 is the present invention application site figure on comprehensive mining hydraulic bracket back timber and bottom girder.

Fig. 2 is the A-A section of Fig. 1.

Fig. 3 is the B-B section of Fig. 1.

Fig. 4 discloses sectional view when needling end face 8 is back timber above needling body 5 a part of.

Fig. 5 is the present invention application site figure on hydraulic prop for moving suspended top beam.

Fig. 6 is the C-C section of Fig. 5.

The sectional view that Fig. 7 is needling end face when being terrace with edge.

Fig. 8 is the sectional view of needling end face 8 when departing from needling body 5.

Detailed description of the invention

Position when composition graphs 1, Fig. 2 and Fig. 3, Fig. 1 give on the back timber and bottom girder that a kind of needling of the present invention is applied to fully mechanized mining supporter.This fully mechanized mining supporter comprises back timber 13, bottom girder 14, four-bar mechanism 3, pillar 4.Back timber 13 with bottom girder 14 is respectively equipped with the needling be connected with the top and bottom of hydraulic prop 4, wherein Fig. 2 gives a kind of needling of the present invention and is applied to a kind of embodiment on back timber, in this embodiment needling 1 structure that comprises needling body 5, needling end face 8, the device be connected with pillar and be connected with back timber.The device be wherein connected with pillar 4 comprises ball-and-socket 7, pin 9, little pin 12, and wherein fixing with back timber structure is Welding Structure.Needling end face 8 is parts of needling body 5 in the present embodiment, and above ball-and-socket 7.Needling body 5 is welded on back timber 1, and needling end face 8 is higher than the end face 10 of back timber 13, and the shape of needling end face 8 is a part for sphere.Ball-and-socket 7 is needling body 5 and the faying face of pillar 4, prevents pillar 4 from departing from needling body 5 by connecting pin 9.

Fig. 3 gives the second embodiment, namely the present invention is applied on bottom girder, the second embodiment and the first embodiment similar, all comprise be connected with hydraulic prop ball-and-socket 7, the end face 8 of needling and connecting pin 9, needling end face 8 be all connected with ball-and-socket 7, and end face 8 is all a part for sphere, unlike the end face 8 of the needling for being connected with back timber above ball-and-socket 7, and higher than the end face 10 of back timber 13, and be just that needling body 5 is turned around in the second embodiment, end face 8 is under the bottom surface 11 of bottom girder 14.

Composition graphs 4, the third embodiment of the present invention and the first embodiment similar, difference is only that the end face 8 of needling is not connected with needling body 5, but is in a part for the back timber above needling body 5.

Composition graphs 5, Fig. 6, Fig. 5 gives position when the present invention is applied to back timber formula hydraulic support, is the 4th kind of embodiment of the present invention.This hydraulic support comprises back timber 13, pillar 4, back timber end face 10, and some frame type also comprises bottom girder 14.Fig. 6 is the C-C section of Fig. 5, comprises back timber 13, back timber end face 10, needling end face 8, ball-and-socket 7, needling body 5 and pillar 4.4th kind of embodiment and the third embodiment similar, a part for the back timber 1 that to be all needling end face 8 be above needling body 5, farther from the distance of needling body 5 unlike needling end face 8.In addition the structure of needling body 5 is different.These structures also can be applied in other embodiment.

Composition graphs 7, the difference of the 5th kind of embodiment and other embodiment is only the surface shape of needling end face 8 being become terrace with edge, and such terrace with edge surface can also be linked up 1 to 3 needling.The shape of needling body 5 and needling end face 8 is unimportant in the present invention, needling body 5 and pillar 4 and back timber 13 and and bottom girder 14 between connected mode also inessential.As long as needling end face 8 protrudes into the moment of flexure that just can to reduce back timber or bottom girder outside back timber end face 10 or bottom girder bottom surface 11 and be subject to, thus receives the beneficial effect reducing weight support frame and cost.

Composition graphs 8, the 6th kind of embodiment, discloses the structure that needling end face 8 departs from needling body 5, is the rear that needling end face 8 has been partial to needling body 5 in fig. 8.The object done like this prevents back timber from becoming low early and high after, can regulate the specific pressure of different parts time on bottom girder.

Claims

1. a kind of needling on the back timber of coal mine underground hydraulic support frame, comprises needling body, needling end face, the device be connected with hydraulic prop, with the structure that back timber is fixing, it is characterized in that the end face of needling protrudes on the end face of back timber;

2. a kind of needling as claimed in claim 1, the end face that it is characterized in that for the needling of back timber or bottom girder is a part for needling body.

3. a kind of needling as claimed in claim 1, is characterized in that the end face of the needling fixed with back timber is a part for the back timber above needling body.

4. a kind of needling as claimed in claim 1, is characterized in that the end face of the needling fixed with bottom girder is a part for the bottom girder below needling body.

5. a kind of needling as claimed in claim 1, is characterized in that needling end face is offset arrangement relative to needling body in the horizontal direction.