CN115182767A - Quick dismounting and mounting method for hydraulic support balance jack - Google Patents
Quick dismounting and mounting method for hydraulic support balance jack Download PDFInfo
- Publication number
- CN115182767A CN115182767A CN202210755782.4A CN202210755782A CN115182767A CN 115182767 A CN115182767 A CN 115182767A CN 202210755782 A CN202210755782 A CN 202210755782A CN 115182767 A CN115182767 A CN 115182767A
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- Prior art keywords
- balance jack
- cylinder bottom
- quick
- jack
- hydraulic support
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000003245 coal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention provides a quick dismounting method for a hydraulic support balance jack, which is characterized in that a quick dismounting tool is used for dismounting the balance jack, the quick dismounting tool comprises a transverse counterweight rod and a cylinder bottom connecting part arranged at the front end of the transverse counterweight rod, and the quick dismounting method comprises the following steps: the hydraulic support is lowered to a proper position; removing the top beam; connecting a cylinder bottom connecting part on a quick-release tool with the cylinder bottom of a balance jack, removing a pin shaft between a piston rod of the balance jack and a shield beam, and pulling the quick-release tool and the balance jack out of the front end of the shield beam together by a travelling crane; connecting a cylinder bottom connecting part on a quick-release tool with the cylinder bottom of a well-maintained balance jack, pushing a piston rod end of the balance jack to a shield beam connecting position by a travelling crane, and removing the quick-release tool after the piston rod end of the balance jack is connected by a pin shaft; and (4) installing a top beam. The quick dismounting method for the hydraulic support balance jack has the advantages of being simple in operation, few in working procedures, high in efficiency, low in dismounting cost and not prone to causing danger.
Description
Technical Field
The invention relates to the field of coal mine machinery disassembly and assembly, in particular to a quick disassembly and assembly method for a hydraulic support balance jack.
Background
As shown in fig. 1, the hydraulic support mainly comprises a base 1, a shield beam 2, a top beam 3, an upright column 4 and a balance jack 5, wherein a hinge shaft 12 between the shield beam 2 and the top beam 3 is positioned at the inner side of a side guard plate baffle 6 of the top beam 3, when the hydraulic support is subjected to general assembly inspection, the phenomenon that the jack breaks through liquid, leaks or the electroplating surface is damaged is often found, and at the moment, the installed jack needs to be detached, returned to the previous working procedure for maintenance and then installed on the hydraulic support. The balance jacks 5 are located at the lower parts of the top beam 3 and the shield beam 2 and cannot be directly disassembled and assembled through a travelling crane, the top beam 3 and the shield beam 2 are firstly disassembled in a common disassembling and assembling method, then the balance jacks 5 on the shield beam 2 are disassembled, and the balance jacks 5, the shield beam 2 and the top beam 3 are sequentially installed after the balance jacks 5 are repaired. On the one hand, the mode increases the workload of disassembly and installation, which results in long working time and high cost, and on the other hand, because the size of the hydraulic support is larger, more disassembled parts are more, and the danger is more likely to occur.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a quick dismounting method for a hydraulic support balance jack, which is simple to operate, has fewer processes and high efficiency, is low in dismounting cost and is not easy to cause danger.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a hydraulic support balancing jack quick assembly disassembly method, utilizes quick detach frock to carry out the dismouting to balancing jack, quick detach frock includes horizontal counterweight rod and sets up the cylinder bottom connecting portion at horizontal counterweight rod front end, after cylinder bottom connecting portion and balancing jack's cylinder bottom are connected, the front end top of cylinder bottom connecting portion tightly is on balancing jack's cylinder bottom, the last surface mounting of cylinder bottom connecting portion has rings, auxiliary chain pull ring is installed to horizontal counterweight rod rear end, horizontal counterweight rod weight slightly is greater than balancing jack, includes following step: the upright post retracts to enable the hydraulic support to be lowered to a proper position, the proper position cannot be too high or too low, and the shield beam is enabled to approach the horizontal direction as much as possible on the premise that the operation convenience height of workers is guaranteed; removing the top beam; connecting a cylinder bottom connecting part on a quick-release tool with the cylinder bottom of a balance jack, connecting a lifting ring with a lifting appliance on a travelling crane through a lifting chain, connecting an auxiliary chain pull ring with the lifting appliance on the travelling crane through an auxiliary chain, removing a pin shaft between a piston rod of the balance jack and a shield beam, and pulling the quick-release tool and the balance jack out of the front end of the shield beam together by the travelling crane; connecting a cylinder bottom connecting part on a quick-release tool with the cylinder bottom of a repaired balance jack, connecting a lifting ring with a lifting appliance on a travelling crane through a lifting chain, connecting an auxiliary chain pull ring with the lifting appliance on the travelling crane through an auxiliary chain, pushing a piston rod end of the balance jack to a shield beam connecting position by the travelling crane, and removing the quick-release tool after the piston rod end of the balance jack is connected by a pin shaft; and (4) installing a top beam.
Based on the above, when the top beam is disassembled, the connecting part of the upright column and the top beam is disassembled, the side guard plate baffle of the top beam is disassembled, a self-made screw with a handle is screwed into the threaded hole at the outer end of the hinged shaft of the top beam and the shield beam, the hinged shaft is pulled out, and the top beam is hoisted by a crane to be disassembled from the shield beam.
Based on the above, cylinder bottom connecting portion include two otic placodes and apron, two the vertical setting of otic placode, two set up the round pin shaft hole that the position corresponds on the otic placode, the apron welding is two the top of otic placode, it sets up to rise rings the apron upper surface, round pin shaft hole on the otic placode passes through the round pin hub connection back with the hole on the balance jack cylinder bottom, the front end top of otic placode is tightly on the cylinder bottom of balance jack.
Based on the above, the transverse weight rod is a round steel.
Compared with the prior art, the quick-release tool has outstanding substantive characteristics and remarkable progress, particularly, after the quick-release tool is connected with the balance jack, the quick-release tool and the balance jack form a whole by utilizing the jacking force between the cylinder bottom connecting part and the cylinder bottom, meanwhile, as the weight of the transverse counterweight rod is slightly larger than that of the balance jack, when the crane is hoisted, the quick-release tool and the balance jack are in a relative balance state, the auxiliary chain keeps the direction of the transverse counterweight rod stable, and the balance jack is prevented from being tilted up due to the descending of the rear end.
Drawings
Fig. 1 is a schematic structural view of a hydraulic mount.
Fig. 2 is a schematic structural view of the balance jack of the present invention when it is disassembled and assembled.
Fig. 3 is a schematic side view of the quick release tool of the present invention.
Fig. 4 is a schematic top view of the quick release tool of the present invention.
Fig. 5 is a schematic structural view illustrating a hinge shaft between a shield beam and a cap beam which are disassembled and assembled in the present invention.
In the figure: 1. a base; 2. covering the beam; 3. a top beam; 4. a column; 5. a balance jack; 6. a side guard plate baffle; 7. a transverse weight bar; 8. an ear plate; 9. a cover plate; 10. lifting a lifting ring; 11. a screw with a handle; 12. hinging shafts; 13. a pin shaft hole; 14. an auxiliary chain pull ring; 15. lifting the hoist chain; 16. an auxiliary chain; 17. and (4) a protective chain.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
As shown in fig. 2-5, a hydraulic support balance jack quick dismounting method, a special quick dismounting tool designed for a balance jack 5, the quick dismounting tool specifically includes a transverse weight rod 7 and a cylinder bottom connecting portion arranged at the front end of the transverse weight rod 7, the cylinder bottom connecting portion includes two ear plates 8 and a cover plate 9, two the ear plates 8 are vertically arranged, two the ear plates 8 are provided with pin shaft holes 13 corresponding to each other in position, the cover plate 9 is welded at two tops of the ear plates 8, the upper surface of the cover plate 9 is provided with a lifting ring 10, an auxiliary chain pull ring 14 is installed at the rear end of the transverse weight rod 7, the pin shaft holes 13 on the ear plates 8 are connected with holes on the cylinder bottom of the balance jack 5 through pin shafts, the front ends of the ear plates 8 are tightly jacked on the cylinder bottom of the balance jack 5, so as to form an integral structure, and can be pulled by a traveling crane together, the transverse weight rod 7 is specifically a round steel, and has a weight slightly larger than the balance jack 5, including the following steps:
(1) The upright post 4 retracts to enable the hydraulic support to be lowered to a proper position which can not be too high or too low, and the shield beam 2 is enabled to approach the horizontal direction as much as possible on the premise that the operation convenience height of workers is guaranteed;
(2) Detaching the top beam 3, detaching the joint of the upright post 4 and the top beam 3, detaching the side guard plate baffle 6 on the top beam 3, screwing a self-made screw 11 with a handle into a threaded hole at the outer end of a hinge shaft 12 of the top beam 3 and the shield beam 2, pulling out the hinge shaft 12, lifting the top beam 3 by a crane to be disassembled from the shield beam 2, and keeping the balance jack 5 in an upward inclined posture under the action of a protection chain 17;
(3) Connecting a cylinder bottom connecting part of a quick-release tool with a cylinder bottom of a balance jack 5, connecting a lifting ring 10 with a lifting appliance on a travelling crane through a lifting chain 15, connecting an auxiliary chain pull ring 14 with the lifting appliance on the travelling crane through an auxiliary chain 16, removing a pin shaft between a piston rod of the balance jack 5 and a shield beam 2, pulling the quick-release tool and the balance jack 5 out of the front end of the shield beam 2 together by the travelling crane, wherein in the lifting process, the quick-release tool and the balance jack 5 are in a relative balance state because the weight of a transverse counterweight rod 7 is slightly larger than that of the balance jack 5, and the auxiliary chain 16 can ensure that the direction of the transverse counterweight rod 7 is stable and prevent the balance jack 5 from being tilted up due to the descending of the rear end;
(4) Connecting a cylinder bottom connecting part on a quick-release tool with the cylinder bottom of a repaired balance jack 5, connecting a lifting ring 10 with a lifting appliance on a travelling crane through a lifting chain 15, connecting an auxiliary chain pull ring 14 with the lifting appliance on the travelling crane through an auxiliary chain 16, pushing a piston rod end of the balance jack 5 into a connecting position of a shield beam 2 by the travelling crane, and removing the quick-release tool after the piston rod end is connected by a pin shaft;
(5) The top beam 1 is installed.
Compared with the traditional dismounting method, the dismounting method cancels the step of dismounting the shield beam 2, utilizes the self-made quick-dismounting tool to dismount the balance jack 5, has the characteristics of simple operation, quickness and safety, effectively solves the problem that the balance jack 5 is difficult to repair after the support is assembled and has low pain point, and greatly improves the dismounting efficiency; taking an 8.8 m hydraulic support for caving coal as an example, the time for disassembling and assembling the support is reduced from the original 12 hours per support to 6 hours per support of a new process, the efficiency is improved by 50%, and the labor cost is reduced by 50% compared with the traditional disassembling and assembling cost.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides a hydraulic support balance jack quick assembly disassembly method, its characterized in that utilizes quick detach frock to carry out the dismouting to balance jack, quick detach frock includes horizontal counterweight rod and sets up the cylinder bottom connecting portion of horizontal counterweight rod front end, cylinder bottom connecting portion with balance jack's cylinder bottom be connected the back, the front end top of cylinder bottom connecting portion is tight on balance jack's cylinder bottom, the last surface mounting of cylinder bottom connecting portion has rings, auxiliary chain pull ring is installed to horizontal counterweight rod rear end, horizontal counterweight rod weight slightly is greater than balance jack, includes following step:
the upright post retracts, so that the hydraulic support is lowered to a proper position;
removing the top beam;
connecting a cylinder bottom connecting part on a quick-release tool with the cylinder bottom of a balance jack, connecting a lifting ring with a lifting appliance on a travelling crane through a lifting chain, connecting an auxiliary chain pull ring with the lifting appliance on the travelling crane through an auxiliary chain, removing a pin shaft between a piston rod of the balance jack and a shield beam, and pulling the quick-release tool and the balance jack out of the front end of the shield beam together by the travelling crane;
connecting a cylinder bottom connecting part on a quick-release tool with the cylinder bottom of a repaired balance jack, connecting a lifting ring with a lifting appliance on a travelling crane through a lifting chain, connecting an auxiliary chain pull ring with the lifting appliance on the travelling crane through an auxiliary chain, pushing a piston rod end of the balance jack to a shield beam connecting position by the travelling crane, and removing the quick-release tool after the piston rod end of the balance jack is connected by a pin shaft;
and (7) installing a top beam.
2. The method for quickly dismounting the hydraulic support balance jack according to claim 1, wherein the method comprises the following steps: when the top beam is disassembled, the joint of the upright post and the top beam is disassembled, the side guard plate baffle of the top beam is disassembled, a self-made screw with a handle is screwed into a threaded hole at the outer end of the hinging shaft between the top beam and the shield beam, the hinging shaft is pulled out, and the top beam is hoisted by a crane to be disassembled from the shield beam.
3. The method for quickly dismounting and mounting the hydraulic support balance jack according to claim 1 or 2, wherein the method comprises the following steps: the cylinder bottom connecting part comprises two lug plates and an cover plate, the lug plates are vertically arranged and two pin shaft holes corresponding to the positions are formed in the lug plates, the cover plate is welded at the tops of the lug plates, the lifting rings are arranged on the upper surface of the cover plate, the pin shaft holes in the lug plates are connected with holes in the cylinder bottom of the balance jack through pin shafts, and the front ends of the lug plates are tightly jacked on the cylinder bottom of the balance jack.
4. The method for quickly dismounting the hydraulic support balance jack according to claim 3, wherein the method comprises the following steps: the transverse weight rod is a round steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210755782.4A CN115182767A (en) | 2022-06-30 | 2022-06-30 | Quick dismounting and mounting method for hydraulic support balance jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210755782.4A CN115182767A (en) | 2022-06-30 | 2022-06-30 | Quick dismounting and mounting method for hydraulic support balance jack |
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| Publication Number | Publication Date |
|---|---|
| CN115182767A true CN115182767A (en) | 2022-10-14 |
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|---|---|---|---|
| CN202210755782.4A Pending CN115182767A (en) | 2022-06-30 | 2022-06-30 | Quick dismounting and mounting method for hydraulic support balance jack |
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Citations (16)
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|---|---|---|---|---|
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| RU2200843C2 (en) * | 2001-04-12 | 2003-03-20 | Долинский Аркадий Маркович | Process to support and control over roof in breakage face, support to implement this process, mechanism for telescopic tightening of clearances in roof and rock burst, connection of bases of sections, guiding beam of support, mechanism to spread sections of support, mechanism to collapse support, deflector of support floor |
| WO2013131318A1 (en) * | 2012-03-07 | 2013-09-12 | 中煤北京煤矿机械有限责任公司 | Two-prop shield hydraulic support for large centre to centre distance and ultra-high working resistance in medium-thickness coal seams |
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| CN208054770U (en) * | 2018-03-14 | 2018-11-06 | 中建八局第三建设有限公司 | A kind of adjustable hoisting balance beam device of light-duty center of gravity |
| CN111305884A (en) * | 2019-12-30 | 2020-06-19 | 山东塔高矿业机械装备制造有限公司 | Assembling method for hydraulic support |
| CN211589945U (en) * | 2019-11-20 | 2020-09-29 | 广汽乘用车有限公司 | Balance cylinder dismouting appurtenance |
| CN112775188A (en) * | 2019-11-11 | 2021-05-11 | 中冶宝钢技术服务有限公司 | Roller changing device and changing method thereof |
-
2022
- 2022-06-30 CN CN202210755782.4A patent/CN115182767A/en active Pending
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| WO2013131318A1 (en) * | 2012-03-07 | 2013-09-12 | 中煤北京煤矿机械有限责任公司 | Two-prop shield hydraulic support for large centre to centre distance and ultra-high working resistance in medium-thickness coal seams |
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