CN201826867U

CN201826867U - Socket

Info

Publication number: CN201826867U
Application number: CN2010202606437U
Authority: CN
Inventors: 李泽宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-16
Filing date: 2010-07-16
Publication date: 2011-05-11
Anticipated expiration: 2020-07-16

Abstract

The utility model discloses a socket used for a top girder or a bottom girder of a coal mine underground hydraulic support. The socket comprises a socket body (5), socket top surfaces (8), a device connected with a hydraulic prop, and a structure fixed together with the top girder, and is characterized in that the socket top surfaces (8) protrude out of the top surface (10) of the top girder (13) or the bottom surface (11) of the bottom girder (14). The socket top surfaces (8) are enabled to be in contact with a top plate and a baseplate at first to reduce bending moment born by the top girder or the bottom girder, so as to achieve the purpose of reducing the weight and the cost of the support. The socket provided by the utility model is particularly suitable for supporting uneven or softer top plates and baseplates.

Description

A kind of needling

Technical field

The utility model relates to a kind of needling that is used for coal mine underground hydraulic support frame.

Background technology

Hydraulic support divides two big 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 number 88104291.9) and chain suspension type hydraulic support (Chinese patent application ZL200510070729.7).Another kind of is hydraulic support described in " comprehensive mining hydraulic bracket general technical specifications ".The end face that this two big class hydraulic support is used for the needling that is connected with hydraulic prop upper end all is located under the end face of back timber, and the purpose of doing like this is for the end face that makes back timber keeps a complete flat shape, so that contact top board preferably.The bottom surface of the same needling that is connected with the hydraulic prop lower end all is located on the bottom surface of bottom girder, and the bottom surface that makes bottom girder is the plane, so that contact base plate preferably.But when running into not ceiling or not during base slab, rough the situation with plane contact will appear, this moment, the actual contact point had only not three points on same straight line, and these three points are not often in the position over against needling, cause back timber or bottom girder to bear huge moment of flexure and moment of torsion, so hydraulic support is often made very heavyly, price also can be very high.

The utility model content

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

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

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

Described a kind of needling is characterized in that the needling end face is an offset arrangement with respect to the needling body in the horizontal direction.

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

Description of drawings

The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.

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.

The sectional view that Fig. 4 discloses needling end face 8 when being needling body 5 top back timbers 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.

Fig. 7 is the sectional view of 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.

The specific embodiment

In conjunction with Fig. 1, Fig. 2 and Fig. 3, the position when Fig. 1 has provided the present invention a kind of needling and is applied on the back timber of fully mechanized mining supporter and the bottom girder.This fully mechanized mining supporter comprises back timber 13, bottom girder 14, four-bar mechanism 3, pillar 4.Be respectively equipped with the needling that is connected with the top and bottom of hydraulic prop 4 on back timber 13 and the bottom girder 14, wherein Fig. 2 has provided a kind of needling of the present invention and has been applied to a kind of embodiment on the back timber, and needling 1 comprises needling body 5, needling end face 8, device that is connected with pillar and the structure that is connected with back timber in this embodiment.Wherein the device that is connected with pillar 4 comprises ball-and-socket 7, pin 9, little pin 12, is welded construction with the fixing structure of back timber wherein.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 the back timber 1, and needling end face 8 is higher than the end face 10 of back timber 13, the part that is shaped as sphere of needling end face 8.Ball-and-socket 7 is bonding surfaces of needling body 5 and pillar 4, prevents that by connecting pin 9 pillar 4 breaks away from needling bodies 5.

Fig. 3 has provided second kind of embodiment, promptly the present invention is applied on the bottom girder, second kind of embodiment and first kind of embodiment are similar, the end face 8 and the ball-and-socket 7 that all comprise the end face 8 of the ball-and-socket 7 that links to each other with hydraulic prop, needling and connecting pin 9, needling all fuse, and end face 8 all is the part of sphere, different is is used for the end face 8 of the needling that is connected with back timber above ball-and-socket 7, and be higher than the end face 10 of back timber 13, and just be that needling body 5 is turned around in second kind of embodiment, end face 8 is under the bottom surface 11 of bottom girder 14.

In conjunction with Fig. 4, the third embodiment of the present invention and first kind of embodiment are similar, and difference only is that the end face 8 of needling does not fuse with needling body 5, but are in the part of the back timber of needling body 5 tops.

In conjunction with Fig. 5, Fig. 6, Fig. 5 have provided the position when the present invention is applied to back timber formula hydraulic support, are the 4th kind of embodiments of the present invention.This hydraulic support comprises back timber 13, pillar 4, and back timber end face 10, 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.The 4th kind of embodiment and the third embodiment are similar, all are that needling end face 8 is parts of the back timber 1 of needling body 5 tops, and different is that needling end face 8 is farther from the distance of needling body 5.The structure difference of needling body 5 in addition.These structures also can be applied in other embodiment.

In conjunction with Fig. 7, the difference of the 5th kind of embodiment and other embodiment only is the shape of needling end face 8 has been become the surface of 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 outside back timber end face 10 or the bottom girder bottom surface 11 and just can reduce the moment of flexure that back timber or bottom girder are subjected to, thereby receive the beneficial effect that reduces weight support frame and cost.

In conjunction with Fig. 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 purpose of doing like this is to prevent that back timber from becoming low early and high after, can regulate the specific pressure of different parts when being used on the bottom girder.

Claims

1. the back timber that is used for coal mine underground hydraulic support frame is or/and a kind of needling on the bottom girder, comprise the needling body, the needling end face, the device that is connected with hydraulic prop, with back timber or/and with the fixing structure of bottom girder, the end face that it is characterized in that needling protrudes on the end face of back timber, or/and the bottom surface of needling protrudes under the bottom surface of bottom girder.

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

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

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

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