CN201884057U - Quick-change delivery drum steel shaft lining - Google Patents
Quick-change delivery drum steel shaft lining Download PDFInfo
- Publication number
- CN201884057U CN201884057U CN2010205836888U CN201020583688U CN201884057U CN 201884057 U CN201884057 U CN 201884057U CN 2010205836888 U CN2010205836888 U CN 2010205836888U CN 201020583688 U CN201020583688 U CN 201020583688U CN 201884057 U CN201884057 U CN 201884057U
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- quick
- shaft
- maintenance
- pit shaft
- borehole wall
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Abstract
The utility model relates to a quick-change delivery drum steel shaft lining, which belongs to the technical field of coal mine equipment and is used for reducing the maintenance time, lowering the maintenance risk and prolonging the actual utilization time of the shaft lining after the delivery drum steel shaft lining is damaged. The utility model has the technical scheme that the quick-change delivery drum steel shaft lining comprises fixed shafts and quick-change shaft linings, wherein the fixed shafts are formed by connecting a plurality of cylindrical iron barrels top and bottom; each cylindrical iron barrel is synthetized by two semicircular iron barrels; the quick-change shaft linings comprise a plurality of circular arc-shaped steel plates; the circular arcs of the circular arc-shaped steel plates are matched with the inner walls of the fixed shafts; the outer walls of the fixed shafts are fixedly connected with the drum wall of a delivery drum; and the quick-change shaft linings are arranged in sequence and connected with the inner walls of the fixed shafts. The utility model has the advantages that the integral shaft linings are changed into assembled shaft linings, and only the quick-change shaft linings at the damaged parts need to be replaced in maintenance each time, thereby, maintenance materials are saved and the maintenance work time is reduced; the weight of each quick-change shaft lining is reduced a lot relative to the integral shaft linings and the maintenance construction difficulty is reduced; hangers are used for suspension installation, thus, the operation is simple and the maintenance speed is increased.
Description
Technical field
The utility model relates to the slide coal tube borehole wall of a kind of mine coal bunker, belongs to the coal mine equipment technical field.
Background technology
The large-scale coal bunker in mine generally is made of 3 parts: top is vertical type back taper slide colliery; The middle part is the cylindrical coal bunker staple shaft of vertical type; The bottom is a tetrapyamid shape infundibulate fore shaft.Impact because of the slide colliery directly bears coal stream, form so the borehole wall adopts the more piece manganese steel plate of the above thickness of 20mm vertically to overlap usually.Main feature is the greater impact power of bearing, the length of comparing with steel concrete of wear-resisting time.But if the residing surrounding air humidity of main coal bunker is very big, when the annual production of coal was higher relatively again, under the acting in conjunction of the wearing and tearing of coal grain and corrosion, the high energy impact events of coal stream changed the metal failure mechanism.
At first, the coal grain is also removed the oxide and the polarization layer of protective effect except wear metal, and the oxidized metal is exposed, and forms microcosmic groove and load mould, and battery corrosion is concentrated, and the microcosmic surface that increases corrosion is long-pending;
Secondly, the coal grain also can be removed the strain hardening top layer, make brittle metal form splitting, in metal and the heavily stressed contact position of mineral, flow causes strain hardening, make corrosion become easy, corrosiveness makes the metal surface produce pit, causes microfissure, and the crackle at pit place causes hydraulic rupture when impacting, rough surface forms, and abrasive wear institute energy requirement is reduced;
The 3rd, also may produce H2 and be absorbed subsequently and make steel fracture, more not wear-resisting corrosion earlier mutually in crystal boundary and the heterogeneous structure, adjacent metal is died down, the flow that metal produces under coal stream percussion makes Deformation structure's constituent more perishable, and the ductility component is torn, and is chemical attack and hydraulic rupture creation place, for the wearing and tearing of coal grain provide possibility, hydraulic pressure is increased, and cavitation erosion produces, and makes metal, mineral and fluid temperature (F.T.) raise, and have increased corrosion effect.
The coal tube shaft steel casing that slips will destroy rapidly under above-mentioned three kinds of reasons interact.The reduction of shaft steel casing durability has directly caused the increase of maintenance load, the increasing of unsafe factor, remote-effects manufacturing schedule, restricted the raising of enterprises' production capacity.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of the slide can reduce maintenance time, reduction maintenance risk, the actual quick-changing type slide coal tube shaft steel casing that utilizes the time of the raising borehole wall after coal tube shaft steel casing is damaged.
The technical scheme that solves the problems of the technologies described above is:
A kind of quick-changing type slide coal tube shaft steel casing, it is by fixedly pit shaft, the quick change borehole wall are formed, fixedly pit shaft is a plurality of cylindrical shape work durms compositions that make contacts high and low, each cylindrical shape work durm is synthetic by two semicircle work durms, the quick change borehole wall is a polylith circular arc steel plate, its circular arc and fixedly shaft in wall be complementary, fixedly the pit shaft outer wall with slip coal tube barrel and fixedly connected, the quick change borehole wall is arranged in proper order and is connected fixedly on the shaft in wall.
Above-mentioned quick-changing type slide coal tube shaft steel casing, described each composition be the end welding L type angle steel of the semicircle work durm of pit shaft fixedly, and bolt hole is arranged on the angle steel, and two semicircle work durms are connected by bolt, and bolt is distributed in the two ends of semicircle work durm vertically.
Above-mentioned quick-changing type slips coal tube shaft steel casing, on the inwall of fixing pit shaft a plurality of hanging holes is arranged, and there is hook at the back side of the quick change borehole wall, and it is corresponding with the hanging hole of fixing shaft in wall to link up with the position.
Advantage of the present utility model is as follows:
1, the monolithic borehole wall is changed to the pin-connected panel borehole wall, increased the elastic buffer scope of the borehole wall, improved the durability of the borehole wall;
2, the quick change borehole wall can be prefabricated, reduced the time of maintenance work;
3, each maintenance only needs to change the quick change borehole wall at damaged position, has saved service material;
4, the every relative monolithic borehole wall of quick change borehole wall weight reduces much to have reduced the maintenance construction difficulty;
5, the every quick change borehole wall uses hook to hang installation, and is simple to operate, improved maintenance speed, reduced the maintenance risk.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the part vertical view of the quick change borehole wall;
Fig. 3 is the elevation of Fig. 2;
Fig. 4 is the A-A sectional view of Fig. 3.
Mark is as follows among the figure: fixing gap 6 between pit shaft 1, the quick change borehole wall 2, hook 3, country rock 4, internode gap 5, plate.
The specific embodiment
Show among the figure that the utility model is slipping the fixedly pit shaft 1 that more piece is set in the colliery, in order to the stable of protection country rock 4 with as the pedestal of the quick change borehole wall 2.The fixing first-selected manganese steel plate of the material of pit shaft 1, the height of every joint should determine by actual conditions, but unsuitable too high, in order to avoid increase hoisting difficulty.
Fixedly pit shaft 1 is installed by the actual conditions merogenesis, and every joint is assembled by two semicircle work durms, at the end of semicircle work durm welding L type angle steel, and on angle steel, punch, so that erection bolt, bolt are used for fixing two semicircle work durms, bolt is distributed in semicircle work durm two ends vertically.Every joint is fixedly preset hanging hole on the pit shaft 1, is used to hang the quick change borehole wall 2, and the hook 3 that the hanging hole size is pressed on the quick change borehole wall 2 is determined.
The quick change borehole wall 2 is a polylith circular arc steel plate, its circular arc and fixedly pit shaft 1 inwall be complementary.The quick change borehole wall 2 adopts the equal thickness anti-erosion material to make, and the quick change borehole wall 2 width are determined according to actual lifting ability, are arranged in coal stream impact site then successively.There is hook 3 at the back side of the quick change borehole wall 2, and the hook position is corresponding with the hanging hole of fixing shaft in wall, will link up with 3 during lifting and hang in the hanging hole.
Reserve gap 6 between internode gap 5 and plate during installation.
Job practices of the present utility model and method for maintaining
Fixing pit shaft 1 assembled formation hangs in and installs and fixes in the well and fixedly real with concrete tank between the pit shaft 1 and the borehole wall, the prefabricated quick change borehole wall 2 is hung in fixedly install in the pit shaft then.
The characteristics of the utility model maximum are changed very convenient, flexible exactly, in case certain the sheet quick change borehole wall 2 breakage needs to change, only need the quick change borehole wall 2 to be changed is in advance prefabricated, the damaged quick change borehole wall 2 promoted just can change, the new quick change borehole wall 2 is installed and need be hung over fixedly that pit shaft 1 gets final product.
Claims (3)
1. a quick-changing type slips coal tube shaft steel casing, it is characterized in that: it is by fixedly pit shaft [1], the quick change borehole wall [2] are formed, fixedly pit shaft [1] is a plurality of cylindrical shape work durms composition that makes contacts high and low, each cylindrical shape work durm is synthetic by two semicircle work durms, the quick change borehole wall [2] is a polylith circular arc steel plate, its circular arc and fixedly pit shaft [1] inwall be complementary, fixedly pit shaft [1] outer wall with slip coal tube barrel and fixedly connected, the quick change borehole wall [2] order is arranged and is connected fixedly on pit shaft [1] inwall.
2. quick-changing type slide coal tube shaft steel casing according to claim 1, it is characterized in that: described each composition is the end welding L type angle steel of the semicircle work durm of pit shaft [1] fixedly, bolt hole is arranged on the angle steel, two semicircle work durms are connected by bolt, and bolt is distributed in the two ends of semicircle work durm vertically.
3. quick-changing type according to claim 1 and 2 slips coal tube shaft steel casing, and it is characterized in that: on the inwall of described fixedly pit shaft [1] a plurality of hanging holes are arranged, there is hook [3] at the back side of the quick change borehole wall [2], and hook [3] position is corresponding with the hanging hole of fixing pit shaft [1] inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205836888U CN201884057U (en) | 2010-10-29 | 2010-10-29 | Quick-change delivery drum steel shaft lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205836888U CN201884057U (en) | 2010-10-29 | 2010-10-29 | Quick-change delivery drum steel shaft lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884057U true CN201884057U (en) | 2011-06-29 |
Family
ID=44181597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205836888U Expired - Fee Related CN201884057U (en) | 2010-10-29 | 2010-10-29 | Quick-change delivery drum steel shaft lining |
Country Status (1)
| Country | Link |
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| CN (1) | CN201884057U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157955A (en) * | 2011-12-14 | 2013-06-19 | 上海振华重工(集团)股份有限公司 | Manufacturing method of steel drum with large diameter |
| CN103510983A (en) * | 2013-10-08 | 2014-01-15 | 中国矿业大学 | Wall-mounting-type vertical coal bunker without coal feeder chamber |
| CN111608665A (en) * | 2020-06-05 | 2020-09-01 | 安徽理工大学 | Method for building coal chute |
| CN111963174A (en) * | 2020-07-08 | 2020-11-20 | 淮北矿业股份有限公司 | Process for repairing coal chute hole by open caisson method |
-
2010
- 2010-10-29 CN CN2010205836888U patent/CN201884057U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157955A (en) * | 2011-12-14 | 2013-06-19 | 上海振华重工(集团)股份有限公司 | Manufacturing method of steel drum with large diameter |
| CN103510983A (en) * | 2013-10-08 | 2014-01-15 | 中国矿业大学 | Wall-mounting-type vertical coal bunker without coal feeder chamber |
| CN103510983B (en) * | 2013-10-08 | 2015-05-20 | 中国矿业大学 | Wall-mounting-type vertical coal bunker without coal feeder chamber |
| CN111608665A (en) * | 2020-06-05 | 2020-09-01 | 安徽理工大学 | Method for building coal chute |
| CN111963174A (en) * | 2020-07-08 | 2020-11-20 | 淮北矿业股份有限公司 | Process for repairing coal chute hole by open caisson method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20111029 |