CN103510972A - Pillar connecting device - Google Patents
Pillar connecting device Download PDFInfo
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- CN103510972A CN103510972A CN201210206754.3A CN201210206754A CN103510972A CN 103510972 A CN103510972 A CN 103510972A CN 201210206754 A CN201210206754 A CN 201210206754A CN 103510972 A CN103510972 A CN 103510972A
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- screw bolt
- arch screw
- connecting pin
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Abstract
The invention discloses a pillar connecting device applied to a hydraulic support of an underground coal mine coal face. The pillar connecting device comprises a nest column plate (1) integrated with a beam body (6), an arc bolt (2) with a thread (14), a connecting pin (3), a tight nut (4) and a column head (5). A horizontal hole (17) is formed in the column head (5), the column head is provided with a semispherical top (9), and the column head is integrally connected with a hydraulic prop. A groove (7) is formed in the column nest plate (1), the bottom of the groove is an arc face, the arc portion of the arc bolt (2) is matched with the arc face of the bottom of the groove, the arc portion of the arc bolt penetrates through the groove (7), and the column nest plate (1), the arc bolt (2) and the column head (5) are connected. By means of the structure, an allowable swing angle of a top beam can be expanded through movement of the arc bolt and rotation of the column head around the connecting pin (3). When the swing angle is transfinite, the arc bolt can be pulled and broken to prevent the hydraulic prop from being bent. Furthermore, the arc bolt is easy to replace, strong in corrosion resistance and capable of reducing maintenance load and maintenance cost.
Description
Technical field
The present invention relates to for a kind of Pole beam connector on the hydraulic support of coal-face under coal mine.
Background technology
Linkage in existing most of hydraulic supports between hydraulic prop and back timber all comprise that needling plate, connecting pin and the top with spherical nest and pinned hole is sphere with the column cap of wearing the cross-drilled hole that pin uses.Connecting pin passes from the cross-drilled hole of needling plate and column cap.In order to prevent hydraulic prop and back timber disengagement like this.Because in using can there is certain relative swing with respect to bottom girder in back timber, once the amplitude swinging transfinites, will cause very large destructive power, not that connecting pin is not curved, be exactly hydraulic prop is not disconnected.In order to address this problem, some remedial measures in hydraulic support in the past, have all been adopted.Such as adopted the measures such as reinforcing back timber, caving shield, four-bar mechanism in comprehensive mining hydraulic bracket, the amplitude that restriction back timber swings, thus can avoid pillar and connecting pin to be subject to moment of flexure, but the result of doing so has but increased the weight of support greatly.
In order to alleviate the weight of support, we once attempted with wire rope, hydraulic prop being hung in the solution on needling plate on hydraulic prop for moving suspended top beam (Chinese Patent Application No. 88104291.9), when back timber beat amplitude transfinites, huge moment of flexure can force wire rope to skid in wire rope clip, effectively avoided connecting pin by not curved and hydraulic prop by the problem of not breaking, make cantilever support promote more than 50,000, still along with the increase of use amount, also exposed its shortcoming.The common problem that we run into be re-tensioning be elongated wire rope time maintenance capacity larger, especially run into corrosivity Qiang colliery, because steel wire is too thin, will soon be disconnected by rust.
In chain suspension type hydraulic support (Chinese Patent Application No. ZL200520019152.2), because back timber is wider, back timber pendulum angle reduces than hydraulic prop for moving suspended top beam is obvious, we adopted spherical linkage Pole beam connector, resistance to corrosion improves greatly than wire rope, pivot angle allowable also improves greatly than connecting pin scheme, and the scene that still gets rid of bulb when having for supporting the top board that easily emits false roof still happens occasionally.
Summary of the invention
The object of the invention is to overcome the weak point of prior art, the scope that provides a kind of Pole beam connector than connecting pin formula and spherical linkage formula to adapt to pivot angle is large, the Pole beam connector of and a little repair stronger than steel cord structure corrosion resistance.In order to address the above problem, a kind of Pole beam connector of the present invention, comprises that connecting pin 3, hydraulic supporting cornice cross-drilled hole 17 top are the column caps 5 of sphere 9.Connector and with the needling plate 1 of spherical nest 8, it is characterized in that described connector is arch screw bolt 2, arch screw bolt 2 is through the deep-slotted chip breaker 7 on needling plate 1, deep-slotted chip breaker 7 on the shape of arch screw bolt and needling plate 1 matches, and connecting pin 3 passes the cross-drilled hole 17 on column cap 5 and is connected with the two ends of arch screw bolt 2.
The TBE (threaded both ends) 14 of described arch screw bolt is also passed from connecting pin 3 Shang Liangge holes, and passes in the cross-drilled hole 17 of connecting pin 3 from column cap 5, and nut 4 is connected with the screw thread 14 at arch screw bolt two ends.
One end of described arch screw bolt is with holes 10, and threaded 14, with holes 11 the nut 12 of the other end is connected with the screw thread 14 of arch screw bolt, in the cross-drilled hole (17) of connecting pin 3 from arch screw bolt Shang hole 10, nut 12 hole 11 and column cap 5, passes.
Described arch screw bolt is that one end is connected, two bolts of the other end threaded 14, threaded 14Na one end is passed respectively from pressing plate 13Liang Ge hole, and with nut 4 positioning pressuring plates 13, and connecting pin 3 is through junction and the pressing plate 13 top of two bolts, from the cross-drilled hole 17 of column cap 5, pass.
Described arch screw bolt is the bolt of two TBE (threaded both ends) 14 arranged side by side, its left end passes from pressing plate 13Liang Ge hole, its right-hand member passes from another pressing plate 13Liang Ge hole, and is located by nut 4, and connecting pin 3 passes from the cross-drilled hole 17 of column cap 5 through two pressing plate 13 tops.
Described arch screw bolt is two bolts of parallel arranged, one end of arch screw bolt is connected with the gusset 15 of with holes 16, the other end threaded 14, two arch screw bolt structures are identical, from both direction, through passing another gusset 15Shang hole 16 deep-slotted chip breaker 7, fix with nut respectively, connecting pin 3 passes from the cross-drilled hole 17 of column cap 5 through two gusset 15 tops again again.
Adopt after such structure; just can around connecting pin, rotate the pivot angle allowable that these two kinds of manner of execution expand back timbers by arch screw bolt vibration and column cap in the deep-slotted chip breaker of needling plate; just in case there is the situation that back timber pivot angle transfinites, can also protect hydraulic prop not by not curved by breaking arch screw bolt.Once arch screw bolt is pulled off, to change easily, fittings cost is low.When normal operation, the erosion-resisting energy of the parts such as arch screw bolt, connecting pin force rate wire rope is strong, so also reduced daily maintenance load.As can be seen here, the beneficial effect of a kind of Pole beam connector of the present invention is obvious.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the front view of the first embodiment of the present invention.
Fig. 2 is the left view of the first embodiment of the present invention.
Fig. 3 is the front view of the second embodiment of the present invention.
Fig. 4 is the left view of the second embodiment of the present invention.
Fig. 5 is that the K of nut 12 in Fig. 4 is to view.
Fig. 6 is the front view of the third embodiment of the present invention.
Fig. 7 is the left view of the third embodiment of the present invention.
Fig. 8 is the front view of the 4th kind of embodiment of the present invention.
Fig. 9 is the top view of the 4th kind of embodiment of the present invention.
Figure 10 is the top view of arch screw bolt in the 5th kind of embodiment of the present invention.
The specific embodiment
In conjunction with Fig. 1, Fig. 2, the first embodiment of the present invention, comprises the needling plate 1 that is welded into one with back timber or bottom girder 6, arch screw bolt 2, connecting pin 3, obstinate nut 4, with cross-drilled hole 17 and domed top 9 column cap 5 that is connected with the post alive of hydraulic prop.The groove 7 that is wherein cambered surface with bottom on needling plate 1, the arch section of arch screw bolt 2 and the cambered surface of this trench bottom match; Below needling plate 1, with ball-and-socket 8, the domed top 9 of column cap 5 is withstood needling plate 1 ball-and-socket 8 below; Arch screw bolt 2 passes from groove 7, again through the Liang Ge hole that is arranged in the connecting pin 3 of cross-drilled hole 17, and then with the screw thread at obstinate female locking arch screw bolt two ends, needling plate 1 and column cap 5 are coupled together, column cap 5 can either be rotated around connecting pin 3 front and back, can realize swinging of column cap 5 by arch screw bolt 2 vibration in groove 7 again.So just can make the relative column cap 5 of back timber 6 in all directions, realize larger pendulum angle.
In conjunction with Fig. 3, Fig. 4, Fig. 5, the second embodiment of the present invention and the first embodiment are similar, difference is one end band porose 18 of arch screw bolt, on threaded 14. screw threads of the other end, connecting with holes 11 nut, connecting pin 3 is through nut Shang hole 11, cross-drilled hole 17 and arch screw bolt Shang hole 18, and then available little pin 21 the whole bag of tricks such as grade prevent that connecting pin 3 from coming off.The beneficial effect of the second embodiment is identical with the first embodiment.
In conjunction with Fig. 6, Fig. 7, the difference of the third embodiment of the present invention and first two embodiment is that arch screw bolt 2 is changed into two by 1, certainly the groove 7 on needling plate 1 also becomes two, the two ends of arch screw bolt are respectively through in pressing plate 13 hole 16, and with obstinate female locking pressing plate 13 position, then connecting pin 3 is passed from cross-drilled hole 17 through two pressing plate 13 tops.
In conjunction with Fig. 8, Fig. 9, the 4th kind of embodiment of the present invention and the third embodiment are similar, difference is the pressing plate 13 of the arch screw bolt one end in the third embodiment to remove, and this one end of two arch screw bolts is connected, form a new double joint arch screw bolt 2, advantage is simple in structure.
In conjunction with Figure 10, the 5th kind of embodiment of the present invention just carried out a bit simple conversion on the basis of the third embodiment, the pressing plate on the left end of an arch screw bolt and the left side is welded into one and forms the gusset with this arch screw bolt disjunctor, the pressing plate on another root arch screw bolt and the right is welded into one, and this simple conversion can be played the effect of some simplified structures.Can carry out in addition some other simple transformation, for example the pressing plate 13 of Ba Tu7Zhong the same side and two arch screw bolts are welded into one and just become the structure of Fig. 9, and simple like this conversion all drops among protection of the present invention.
Claims (6)
1. for a kind of Pole beam connector on the hydraulic support of coal-face under coal mine, the top that comprises connecting pin (3), band cross-drilled hole (17) is the column cap (5), connector of sphere (9) and with the needling plate (1) of spherical nest (8), it is characterized in that described connector is arch screw bolt (2), arch screw bolt (2) is through the deep-slotted chip breaker (7) on needling plate (1), deep-slotted chip breaker (7) on the shape of arch screw bolt and needling plate (1) matches, and connecting pin (3) passes the cross-drilled hole (17) on column cap (5) and is connected with the two ends of arch screw bolt (2).
2. a kind of Pole beam connector as claimed in claim 1, it is characterized in that the TBE (threaded both ends) (14) of described arch screw bolt and pass from connecting pin (3) Shang Liangge hole, and pass in the cross-drilled hole (17) of connecting pin (3) from column cap (5), nut (4) is connected with the screw thread (14) at arch screw bolt two ends.
3. a kind of Pole beam connector as claimed in claim 1, the one end (10) with holes that it is characterized in that described arch screw bolt, the other end threaded (14), the nut of (11) with holes (12) is connected with the screw thread (14) of arch screw bolt, and connecting pin (3) passes from the hole (11) of arch screw bolt Shang hole (10), nut (12) and the cross-drilled hole (17) column cap (5).
4. a kind of Pole beam connector as claimed in claim 1, it is characterized in that described arch screw bolt Shi Qi one end is connected, two bolts of the other end threaded (14), that one end of threaded (14) is passed respectively from the Liang Ge hole (16) of pressing plate (13), and with nut (4) positioning pressuring plate (13), and connecting pin (3) is through two junctions of bolt and the top of pressing plate (13), from the cross-drilled hole (17) of column cap (5), pass.
5. a kind of Pole beam connector as claimed in claim 1, it is characterized in that described arch screw bolt is the bolt of two TBE (threaded both ends) (14) arranged side by side, its left end passes from the Liang Ge hole of pressing plate (13), its right-hand member passes from the Liang Ge hole of another pressing plate (13), and by nut (4) location, connecting pin (3) passes from the cross-drilled hole (17) of column cap (5) through the top of two pressing plates (13).
6. a kind of Pole beam connector as claimed in claim 1, it is characterized in that described arch screw bolt is two bolts of parallel arranged, one end of arch screw bolt is connected with the gusset (15) of (16) with holes, the other end threaded (14), two arch screw bolt structures are identical, from both direction, through passing another gusset (15) Shang hole (16) deep-slotted chip breaker (7), fix with nut respectively, connecting pin (3) passes from the cross-drilled hole (17) of column cap (5) through the top of two gussets (15) again again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210206754.3A CN103510972B (en) | 2012-06-21 | 2012-06-21 | A kind of Pole beam connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210206754.3A CN103510972B (en) | 2012-06-21 | 2012-06-21 | A kind of Pole beam connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103510972A true CN103510972A (en) | 2014-01-15 |
| CN103510972B CN103510972B (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210206754.3A Active CN103510972B (en) | 2012-06-21 | 2012-06-21 | A kind of Pole beam connector |
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| Country | Link |
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| CN (1) | CN103510972B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089683A (en) * | 2015-08-27 | 2015-11-25 | 淮南矿业(集团)有限责任公司 | U-type shed leg clamping device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004771A (en) * | 1972-09-09 | 1977-01-25 | Gewerkschaft Eisenhutte Westfalia | Ball-and-socket type connections for use with mining apparatus |
| GB2098255A (en) * | 1981-05-12 | 1982-11-17 | Alsace Mines Potasse | Mechanical connecting device between head or foot of a prop and the cap or base of roof supports |
| DE3340888C1 (en) * | 1983-11-11 | 1985-02-07 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Hydraulic prop with rock-burst valve for a self-advancing powered support assembly |
| CN201502383U (en) * | 2009-09-16 | 2010-06-09 | 北京诚田恒业煤矿设备有限公司 | Single hydraulic prop for sliding hydraulic support |
| CN201857981U (en) * | 2010-10-29 | 2011-06-08 | 三一重型装备有限公司 | Fixing device for reverse splayed structure of upright post of hydraulic support |
| CN102337909A (en) * | 2010-07-16 | 2012-02-01 | 李泽宇 | Socket |
| CN202645608U (en) * | 2012-06-21 | 2013-01-02 | 李泽宇 | Column beam connecting device |
-
2012
- 2012-06-21 CN CN201210206754.3A patent/CN103510972B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004771A (en) * | 1972-09-09 | 1977-01-25 | Gewerkschaft Eisenhutte Westfalia | Ball-and-socket type connections for use with mining apparatus |
| GB2098255A (en) * | 1981-05-12 | 1982-11-17 | Alsace Mines Potasse | Mechanical connecting device between head or foot of a prop and the cap or base of roof supports |
| DE3340888C1 (en) * | 1983-11-11 | 1985-02-07 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Hydraulic prop with rock-burst valve for a self-advancing powered support assembly |
| CN201502383U (en) * | 2009-09-16 | 2010-06-09 | 北京诚田恒业煤矿设备有限公司 | Single hydraulic prop for sliding hydraulic support |
| CN102337909A (en) * | 2010-07-16 | 2012-02-01 | 李泽宇 | Socket |
| CN201857981U (en) * | 2010-10-29 | 2011-06-08 | 三一重型装备有限公司 | Fixing device for reverse splayed structure of upright post of hydraulic support |
| CN202645608U (en) * | 2012-06-21 | 2013-01-02 | 李泽宇 | Column beam connecting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089683A (en) * | 2015-08-27 | 2015-11-25 | 淮南矿业(集团)有限责任公司 | U-type shed leg clamping device |
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| CN103510972B (en) | 2016-12-07 |
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