CN102926791B - Thrust gear capable of providing effective torque and hydraulic support of thin coal seal - Google Patents
Thrust gear capable of providing effective torque and hydraulic support of thin coal seal Download PDFInfo
- Publication number
- CN102926791B CN102926791B CN201210359356.5A CN201210359356A CN102926791B CN 102926791 B CN102926791 B CN 102926791B CN 201210359356 A CN201210359356 A CN 201210359356A CN 102926791 B CN102926791 B CN 102926791B
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- junction plate
- shaped junction
- pusher rod
- thrust gear
- effective torque
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Abstract
The invention discloses a thrust gear capable of providing an effective torque and a hydraulic support of a thin coal seal. The rear end of the thrust gear is hinged with the front end of the middle part of a T-shaped connecting plate; inclined slot holes inclining outwards from front to back are respectively arranged at two side parts of the T-shaped connecting plate; the end faces of the two side parts of the T-shaped connecting plate are of arc surfaces; hinge lugs are respectively arranged at the rear ends of two split bases of the hydraulic support of the thin coal seal; round holes are arranged on the hinge lugs; the inclined slot holes at the two side parts of the T-shaped connecting plate are respectively hinged with round holes on the hinge lugs at the rear ends of the two split bases; inclined planes inclining outwards from front to back are arranged at the front parts of the hinge lugs; the arc surfaces at the two side parts of the T-shaped connecting plate resist against the inclined plane; and the inclined slot holes on the T-shaped connecting plate and the arc surfaces at the side ends are combined with the hinge lugs at the rear parts of the bases and the inclined plane to act when the support is pulled or pushed under the effect of an advancing jack. Therefore, larger effective torque can be provided, and smooth pulling of the split base support can be ensured.
Description
Technical field
The present invention relates to a kind of hydraulic support for low coal seam, particularly relate to a kind of thrust gear and hydraulic support for low coal seam that effective torque is provided.
Background technology
According to the criteria for classifying of current this area to coal seam thickness, 0.8 ~ 1.3m is girdle.In the design of Bracket in Thin Coal Seam, owing to limiting by structure, bracket base generally is the form of complete split, and this form is unfavorable for support " trying to stop people from fighting each other " undoubtedly.Therefore, how to ensure that trying to stop people from fighting each other smoothly of split base support just becomes the difficult point of thrust gear and associated components design, also do not have effective technical scheme to solve this difficult problem at present.
Summary of the invention
The object of this invention is to provide a kind of thrust gear and hydraulic support for low coal seam that the provided effective torque that split base support is tried to stop people from fighting each other smoothly can be provided.
The object of the invention is to be achieved through the following technical solutions:
The thrust gear that effective torque is provided of the present invention, comprise anterior pusher rod, rear portion pusher rod, advancing jack is connected with between described anterior pusher rod and rear portion pusher rod, also comprise T-shaped junction plate, front end in the middle part of described T-shaped junction plate and the rear end of described pusher rod hinged, the both sides of described T-shaped junction plate are respectively equipped with plagioclase hole outward-dipping from front to back, and the end face of the both sides of described T-shaped junction plate is arcwall face.
Hydraulic support for low coal seam of the present invention, comprise two pieces of Split type bases, the thrust gear of above-mentioned provided effective torque is provided between described two pieces of Split type bases, the rear end of described two pieces of Split type bases is respectively equipped with hinged ear, described hinged ear is provided with circular hole, the plagioclase hole of the both sides of described T-shaped junction plate is hinged with the circular hole on the hinged ear of two pieces of separate bottom base rear ends respectively, the front portion of described hinged ear is provided with inclined-plane outward-dipping from front to back, and the arcwall face of the both sides of described T-shaped junction plate leans against on described inclined-plane.
As seen from the above technical solution provided by the invention, the thrust gear of the provided effective torque that the embodiment of the present invention provides and hydraulic support for low coal seam, owing to comprising T-shaped junction plate, front end in the middle part of T-shaped junction plate and the rear end of pusher rod hinged, the both sides of T-shaped junction plate are respectively equipped with plagioclase hole outward-dipping from front to back, and the end face of the both sides of T-shaped junction plate is arcwall face; The rear end of two pieces of Split type bases is respectively equipped with hinged ear, hinged ear is provided with circular hole, the plagioclase hole of the both sides of T-shaped junction plate is hinged with the circular hole on the hinged ear of two pieces of separate bottom base rear ends respectively, the front portion of hinged ear is provided with inclined-plane outward-dipping from front to back, and the arcwall face of the both sides of T-shaped junction plate leans against on inclined-plane.When support is at the effect lower tie frame of advancing jack or pushing and sliding, the hinged ear of the plagioclase hole on T-shaped junction plate and side arc surface and base rear portion and inclined-plane synergy, can provide larger effective torque, ensures trying to stop people from fighting each other smoothly of split base support.
Accompanying drawing explanation
Fig. 1 a is the structural representation of T-shaped junction plate in embodiments of the invention;
Fig. 1 b is the lateral view of Fig. 1 a;
Fig. 2 is the structural representation of symmetrical split base in embodiments of the invention;
Fig. 3 a is the side structure schematic diagram of thrust gear in embodiments of the invention;
Fig. 3 b is the plane structure schematic diagram of thrust gear in embodiments of the invention;
Fig. 4 is the integral installation distribution structure schematic diagram of thrust gear and base in embodiments of the invention;
Fig. 5 is the stressed schematic diagram of base in embodiments of the invention;
Fig. 6 is the structural representation of the hydraulic support for low coal seam in embodiments of the invention.
Detailed description of the invention
To be described in further detail the embodiment of the present invention below.
The thrust gear that effective torque is provided of the present invention, its preferably detailed description of the invention be:
Comprise anterior pusher rod, rear portion pusher rod, advancing jack is connected with between described anterior pusher rod and rear portion pusher rod, also comprise T-shaped junction plate, front end in the middle part of described T-shaped junction plate and the rear end of described pusher rod hinged, the both sides of described T-shaped junction plate are respectively equipped with plagioclase hole outward-dipping from front to back, and the end face of the both sides of described T-shaped junction plate is arcwall face.
The middle part of described anterior pusher rod is connected by the piston rod of fixed axis with described advancing jack, and the cylinder body of described advancing jack is connected with described rear portion pusher rod and fixes.
Hydraulic support for low coal seam of the present invention, its preferably detailed description of the invention be:
Comprise two pieces of Split type bases, the thrust gear of above-mentioned provided effective torque is provided between described two pieces of Split type bases, the rear end of described two pieces of Split type bases is respectively equipped with hinged ear, described hinged ear is provided with circular hole, the plagioclase hole of the both sides of described T-shaped junction plate is hinged with the circular hole on the hinged ear of two pieces of separate bottom base rear ends respectively, the front portion of described hinged ear is provided with inclined-plane outward-dipping from front to back, and the arcwall face of the both sides of described T-shaped junction plate leans against on described inclined-plane.
Specific embodiment, as shown in Figures 1 to 6:
As described in Fig. 1 a, 1b, T-shaped junction plate 5---formed by two block plate weldings, also can be formed by a block plate blanking according to specific design.Be provided with a circular hole before this plate, be connected with thrust gear rear end; Be arranged with two plagioclase holes 6 below, be connected with base bearing pin.
As shown in Figure 2, base 7 is symmetrical, complete split, and base 7 rear portion is provided with hinged ear 10, and hinged ear 10 is provided with circular hole 11, and hinged with the plagioclase hole 6 of T-shaped junction plate 5 respectively, the size of circular hole 11 is consistent with the plagioclase hole 6 of T-shaped junction plate 5.The front portion of hinged ear 10 is provided with inclined-plane 9.
As shown in Fig. 3 a, 3b, thrust gear is made up of anterior pusher rod 1, advancing jack 2 and rear portion pusher rod 3, advancing jack and rear portion pusher rod are fixed, anterior pusher rod is welded with fixed axis 4 at middle part, fix with the piston rod of advancing jack, anterior pusher rod can be slided under advancing jack effect in the pusher rod of rear portion, and pusher rod rear portion, rear portion is provided with hinge hole and T-shaped junction plate front portion is hinged.
As shown in Figure 4, after base 7 and T-shaped junction plate 5 combine, when " pushing and sliding ", advancing jack cavity of resorption feed liquor, support stretching top board, thrust gear is to T-shaped junction plate 5 one active force backward, connection bearing pin between T-shaped junction plate 5 and base 7 is stressed, and transporter is normally advanced.When " trying to stop people from fighting each other ", T-shaped junction plate by thrust gear 1 be drawn forward into, two, T-shaped junction plate rear portion outside plagioclase hole effect under, base rear portion has the trend expanded outwardly.Meanwhile, the contact of incline plane of the external arc in T-shaped junction plate plagioclase hole and the hinged ear clip plate of base, produces higher effective torque.
As shown in Figure 5, after the contact of incline plane of T-shaped junction plate and the hinged ear clip plate of base, normal pressure F is formed, if horizontal component is F to inclined-plane
level, vertical component is F
vertically.
As shown in Figure 6, the column 12 of support bears roof pressure, with base 7 contact point for fix a point, and fixed point here and base needling 8 center (see figure 4).When base rear portion expands outwardly, be actually single-base 7 with base needling 8 center for axial extrinsic deflection, also namely base 7 front portion is to intrinsic deflection, and left and right base symmetric deflection, then whole base 7 front portion is received inward, will greatly be conducive to support like this and try to stop people from fighting each other smoothly.
Composition graphs 5 is example, does following analysis:
Here,
f
jackthe i.e. pulling force of support advancing jack;
Then, torque
Torque
Torque
L in practical application
1× tan α is much larger than L
2, therefore known by above-mentioned calculating, T-shaped junction plate provides larger effective torque for base rear portion to extrinsic deflection in process tried to stop people from fighting each other by support---i.e. core of the present invention.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (3)
1. one kind can provide the thrust gear of effective torque, comprise anterior pusher rod, rear portion pusher rod, advancing jack is connected with between described anterior pusher rod and rear portion pusher rod, it is characterized in that, also comprise T-shaped junction plate, the rear end of the front end in the middle part of described T-shaped junction plate and described rear portion pusher rod is hinged, and the both sides of described T-shaped junction plate are respectively equipped with plagioclase hole outward-dipping from front to back, and the end face of the both sides of described T-shaped junction plate is arcwall face.
2. the thrust gear that effective torque is provided according to claim 1, it is characterized in that, the middle part of described anterior pusher rod is connected by the piston rod of fixed axis with described advancing jack, and the cylinder body of described advancing jack is connected with described rear portion pusher rod and fixes.
3. a hydraulic support for low coal seam, comprise two pieces of Split type bases, it is characterized in that, the thrust gear of the provided effective torque described in claim 1 or 2 is provided between described two pieces of Split type bases, the rear end of described two pieces of Split type bases is respectively equipped with hinged ear, described hinged ear is provided with circular hole, the plagioclase hole of the both sides of described T-shaped junction plate is hinged with the circular hole on the hinged ear of two pieces of separate bottom base rear ends respectively, the front portion of described hinged ear is provided with inclined-plane outward-dipping from front to back, the arcwall face of the both sides of described T-shaped junction plate leans against on described inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210359356.5A CN102926791B (en) | 2012-09-24 | 2012-09-24 | Thrust gear capable of providing effective torque and hydraulic support of thin coal seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210359356.5A CN102926791B (en) | 2012-09-24 | 2012-09-24 | Thrust gear capable of providing effective torque and hydraulic support of thin coal seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102926791A CN102926791A (en) | 2013-02-13 |
| CN102926791B true CN102926791B (en) | 2014-12-24 |
Family
ID=47641703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210359356.5A Expired - Fee Related CN102926791B (en) | 2012-09-24 | 2012-09-24 | Thrust gear capable of providing effective torque and hydraulic support of thin coal seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102926791B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5944498A (en) * | 1982-09-03 | 1984-03-12 | 株式会社三井三池製作所 | Batch control apparatus of acute inclined self-running frame |
| SU1296727A2 (en) * | 1985-09-30 | 1987-03-15 | Донецкий Научно-Исследовательский Угольный Институт | Power support unit |
| SU1361346A1 (en) * | 1986-07-18 | 1987-12-23 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт "Казниуи" | Power support unit |
| CN201420563Y (en) * | 2009-04-27 | 2010-03-10 | 中煤北京煤矿机械有限责任公司 | Hydraulic support and traction device thereof |
| CN102226410A (en) * | 2011-05-24 | 2011-10-26 | 中煤北京煤矿机械有限责任公司 | Hydraulic support advancing mechanism and thin coal seam hydraulic support |
| CN202194673U (en) * | 2011-08-31 | 2012-04-18 | 重庆大江工业有限责任公司 | Connecting and fixing structure for connector of hydraulic support |
| CN202788902U (en) * | 2012-09-24 | 2013-03-13 | 中煤北京煤矿机械有限责任公司 | Thrust gear capable of providing effective torque and low coal seam hydraulic support |
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2012
- 2012-09-24 CN CN201210359356.5A patent/CN102926791B/en not_active Expired - Fee Related
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| CN102926791A (en) | 2013-02-13 |
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Granted publication date: 20141224 Termination date: 20160924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |