CN114837718A - Integrated forepoling for head of reversed loader - Google Patents
Integrated forepoling for head of reversed loader Download PDFInfo
- Publication number
- CN114837718A CN114837718A CN202210602909.9A CN202210602909A CN114837718A CN 114837718 A CN114837718 A CN 114837718A CN 202210602909 A CN202210602909 A CN 202210602909A CN 114837718 A CN114837718 A CN 114837718A
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- hydraulic cylinder
- head
- reversed loader
- plate
- cylinder barrel
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- 239000003245 coal Substances 0.000 claims description 14
- 238000005065 mining Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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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
- E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices
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- 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
- E21D23/0472—Supports specially adapted for people walking or transporting material
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- 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
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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)
- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses an integrated forepoling for a head of a reversed loader, which comprises a top beam, wherein vertical guide cylinders are respectively arranged at the positions, positioned at the front side and the rear side of the reversed loader motor, below the top beam, a column shoe is arranged below the guide cylinders, a transverse fixing plate is arranged in the middle of the guide cylinders, and an upper upright column is arranged at the position, positioned above the fixing plate, in the guide cylinders and used for driving the top beam to move up and down; and a lower upright post is arranged at the position below the fixed plate in the guide cylinder and is used for driving the column shoe to move up and down. The loader head and the fore support are designed integrally, when the loader head moves, the fore support moves along with the loader head at the same time, and a traditional frame moving mechanism is not needed, so that the fore support is compact in structure and small in occupied roadway space, and the problem that the roadway width needs to be temporarily enlarged when the fore support is arranged at the loader head in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of supporting equipment for fully mechanized mining and fully mechanized caving face haulage roadways of underground coal mines, in particular to an integrated forepoling for a head of a reversed loader.
Background
The strengthening support (including end support and advance support) of the transportation roadway of the fully mechanized mining and fully mechanized caving face of the coal mine is an important link influencing the safety and high-efficiency mining of the coal all the time, and the regulation of coal mine safety regulation is as follows: in the range of 20m of the connection between all safety exits and the roadway of the coal face, the support must be strengthened; the national coal mine safety administration notice on strengthening coal mine rock burst prevention and control stipulates that the advance support range of the junction of a coal face safety exit with impact risk and a roadway is not less than 70 meters, the advance support range of the junction of a fully mechanized top coal caving face or a coal face safety exit with medium or above impact risk area and the roadway is not less than 120 meters, and a hydraulic support is preferentially adopted for the advance support.
When the requirement on the advance support range is large, the head of the reversed loader is usually contained, however, the head of the reversed loader is usually the widest part of the whole reversed loader, for a transportation roadway with a small width, the head of the reversed loader cannot be generally provided with a conventional two-frame one-group type, single-row type or other types of advance supports, a single hydraulic prop is still adopted for reinforcing support, and the requirements of various administrative departments on the relevant regulations of the advance support and the construction of an intelligent working face cannot be met. At present, for the advance support at the head of a reversed loader, no other feasible technical scheme is available except that the width of a roadway is increased to arrange an advance support.
Disclosure of Invention
The invention provides an integrated fore support for a head of a reversed loader, which is integrated with the head of the reversed loader, has a compact structure and small occupied roadway space and solves the technical problems that in the prior art, the head of the reversed loader often cannot be provided with a fore support due to larger width, and the width of the roadway is often temporarily enlarged if the fore support needs to be arranged, so that the production period is long, the normal propulsion of a wrong working face is often realized, the roadway tunneling cost is high, and the roadway is difficult to maintain.
In order to solve the technical problems, the invention adopts the following technical scheme:
the integrated fore support for the head of the reversed loader comprises a top beam, wherein vertical guide cylinders are respectively arranged at the positions, located on the front side and the rear side of the reversed loader motor, below the top beam, a column shoe is arranged below each guide cylinder, a transverse fixing plate is arranged in the middle of each guide cylinder, an upper upright column is arranged in each guide cylinder and located above each fixing plate, each upper upright column comprises an upper hydraulic cylinder barrel and an upper movable column located in each upper hydraulic cylinder barrel, the upper end of each upper hydraulic cylinder barrel is hinged to the top beam, and the lower end of each upper movable column is fixedly connected with the top surface of each fixing plate; the upper hydraulic cylinder barrel moves in the guide barrel and is used for driving the top beam to move up and down;
a lower upright post is arranged in the guide cylinder and below the fixed plate, the lower upright post comprises a lower hydraulic cylinder barrel and a lower movable post arranged in the lower hydraulic cylinder barrel, the lower end of the lower hydraulic cylinder barrel is hinged with a post shoe, and the top end of the lower movable post is fixedly connected with the bottom surface of the fixed plate; the lower hydraulic cylinder barrel moves in the guide barrel and is used for driving the column shoe to move up and down.
In the technical scheme, in the coal mining working process, the forepoling is in a supporting state, the lower hydraulic cylinder barrel moves downwards along the guide cylinder to enable the column shoe to move downwards to the bottom surface of the roadway to play a role in supporting the lower part, and the upper hydraulic cylinder barrel moves upwards along the guide cylinder to enable the top beam to move upwards and contact the top surface of the roadway to play a role in supporting the top; when the head of the reversed loader needs to move, the lower hydraulic cylinder barrel moves upwards along the guide cylinder, the column shoe is separated from the bottom, the upper hydraulic cylinder barrel moves downwards, the top beam is separated from the top, the withdrawing of the fore support is realized, at the moment, the head of the reversed loader is driven to move by adopting a self-moving mechanism or other power mechanisms, and the fore support can move along with the head of the reversed loader.
Preferably, the outer sides of the groove bodies on the front side and the rear side of the reversed loader motor are respectively provided with a connecting seat, the connecting seat is provided with at least two groups of connecting lug plates, a mounting plate is arranged on the guide cylinder corresponding to the connecting seat, mounting lug plates are respectively arranged on the mounting plate corresponding to the connecting lug plates of each group, and the mounting lug plates are fixedly connected with the corresponding connecting lug plates. The guide cylinder and the reversed loader are fixedly installed together through the ear plates between the connecting seat and the mounting plate, so that the mounting and the dismounting of the advance support are facilitated.
Preferably, the connecting ear plate is provided with a vertical long round hole, the mounting ear plate is provided with a round fixing hole, and the mounting ear plate is fixedly connected with the corresponding connecting ear plate through a pin shaft.
Preferably, the fixing hole of the mounting lug plate is not positioned at the lowest end of the long round hole of the connecting lug plate. When the mounting lug plate and the connecting lug plate are connected through the pin shaft, the fixing hole in the mounting lug plate is not located at the lowest position of the long circular hole of the connecting lug plate, so that when the column shoe is connected to the bottom, the reversed loader does not bear the supporting force of the upper and lower columns of the advance support, and the stress stability of the advance support during supporting is facilitated.
Preferably, the front end of the top beam is hinged with a front beam, the front end of the front beam is hinged with a side protection plate, a first mounting seat is arranged at the lower part of the top beam close to the front beam, a second mounting seat is arranged at the lower part of the front beam close to the top beam, the bottom end of the front beam jack is hinged with the first mounting seat, and the front end of a telescopic rod of the front beam jack is hinged with the second mounting seat; and a third mounting seat is arranged at the position, close to the front beam, of the lower part of the side protection plate, the bottom end of the side protection jack is hinged with the second mounting seat, and the front end of a telescopic rod of the side protection jack is hinged with the third mounting seat.
Preferably, the bottom end of the lower hydraulic cylinder barrel is provided with a ball universal joint, and the top end of the column shoe is provided with a connector matched with the ball universal joint. The lower hydraulic cylinder barrel is connected with the column shoe through a spherical universal joint, and the angle of the bottom of the column shoe contacting with the bottom surface of the roadway can be adjusted when the column shoe is connected with the bottom of the roadway, so that the condition that the bottom surface of the roadway is uneven is adapted.
Preferably, the top end of the upper hydraulic cylinder barrel is hinged with the top beam through a pin shaft.
Preferably, when coal mining work is carried out, the lower hydraulic cylinder barrel moves downwards along the guide cylinder to enable the column shoe to be connected with the bottom, the upper hydraulic cylinder barrel moves upwards along the guide cylinder to enable the top beam to be connected with the top, and the forepoling is in a supporting state;
when the reversed loader moves, the lower hydraulic cylinder barrel moves upwards along the guide cylinder to enable the column shoe to be separated from the bottom, the upper hydraulic cylinder barrel moves downwards along the guide cylinder to enable the top beam to be separated from the top, and the forepoling is in a retraction state.
The invention has the beneficial effects that:
the head part of the reversed loader can be effectively supported by adopting an integrated design of the head part and the fore support of the reversed loader, so that no empty top exists in the range of the head part of the reversed loader; when the head of the reversed loader moves, the fore support moves along with the head of the reversed loader at the same time, and a traditional frame moving mechanism is not needed to be arranged additionally, so that the fore support is compact in structure and small in occupied roadway space; the motion relation among all parts of the forepoling is simple, the operation is smooth, safe and reliable; each part of the forepoling is light in weight, and the purchase cost is low; the elevating conveyor is connected with the fore support through the connecting seat and the lug plate, and the upper stand column and the lower stand column are connected and guided through the guide cylinders, so that the supporting and withdrawing processes of the fore support are easy to operate and high in efficiency.
Drawings
FIG. 1 is a schematic structural view of an integrated forepoling for a head of a reversed loader according to the present invention;
FIG. 2 is a schematic view of a fore support structure in a supporting state;
FIG. 3 is a schematic structural view of a portion of the guide cylinder of FIG. 2;
FIG. 4 is a schematic view of the fore carriage structure in a moving state of the reversed loader;
FIG. 5 is a schematic structural view of the top and front beams and the side wall panel sections;
FIG. 6 is a schematic side view of the connection between the guide cylinder and the reversed loader;
FIG. 7 is an enlarged view of portion A of FIG. 6;
FIG. 8 is a schematic top view of the connection position between the connecting base and the mounting plate;
reference numbers in the figures: the device comprises a top beam 1, a guide cylinder 2, a column shoe 3, a fixing plate 4, an upper hydraulic cylinder 5, an upper movable column 6, a lower hydraulic cylinder 7, a lower movable column 8, a connecting seat 9, a connecting lug plate 10, an installation plate 11, an installation lug plate 12, a front beam 13, a side protection plate 14, a first installation seat 15, a second installation seat 16, a third installation seat 17, a front beam jack 18, a side protection jack 19, a spherical universal joint 20 and a reversed loader 21.
Detailed Description
The following examples are given to illustrate specific embodiments of the present invention, but are not intended to limit the scope of the present invention in any way. The elements of the apparatus referred to in the following examples are conventional elements of the apparatus unless otherwise specified.
Example 1: an integrated fore support for a head of a reversed loader, which is shown in the figures 1-8, comprises a top beam 1, wherein vertical guide cylinders 2 are respectively arranged at the positions, located at the front side and the rear side of a motor of the reversed loader 21, below the guide cylinders 2, column shoes 3 are arranged, a transverse fixing plate 4 is arranged in the middle of the guide cylinders 2, an upper upright column is arranged in the guide cylinders 2 and located above the fixing plate 4, the upper upright column comprises an upper hydraulic cylinder 5 and an upper movable column 6 located in the upper hydraulic cylinder 5, the upper end of the upper hydraulic cylinder 5 is hinged with the top beam 1, and the lower end of the upper movable column 6 is fixedly connected with the top surface of the fixing plate 4; the upper hydraulic cylinder barrel 4 moves in the guide barrel 2 and is used for driving the top beam 1 to move up and down.
A lower upright post is arranged in the guide cylinder 2 below the fixed plate 4 and comprises a lower hydraulic cylinder barrel 7 and a lower movable post 8 positioned in the lower hydraulic cylinder barrel 7, the lower end of the lower hydraulic cylinder barrel 7 is hinged with the column shoe 3, and the top end of the lower movable post 8 is fixedly connected with the bottom surface of the fixed plate 4; the lower hydraulic cylinder barrel 7 moves in the guide barrel 2 and is used for driving the column shoe 3 to move up and down. The bottom end of the lower hydraulic cylinder barrel 7 is provided with a ball universal joint 20, and the top end of the column shoe 3 is provided with a connector matched with the ball universal joint 20. The top end of the upper hydraulic cylinder 5 is hinged with the top beam 1 through a pin shaft.
The outer sides of the groove bodies on the front side and the rear side of the motor of the reversed loader 21 are respectively provided with a connecting seat 9, the connecting seat 9 is provided with at least two groups of connecting lug plates 10, a mounting plate 11 is arranged on the guide cylinder 2 corresponding to the position of the connecting seat 9, mounting lug plates 12 are respectively arranged on the mounting plate 11 corresponding to the position of each group of connecting lug plates 10, and the mounting lug plates 12 are fixedly connected with the corresponding connecting lug plates 10.
The connecting ear plates 10 are provided with vertical long round holes, the mounting ear plates 12 are provided with circular fixing holes, and the mounting ear plates 12 are fixedly connected with the corresponding connecting ear plates 10 through pin shafts. The fixing hole of the mounting lug plate 12 is not located at the lowest end of the oblong hole of the connecting lug plate 10.
A front beam 13 is hinged at the front end of the top beam 1, a side protection plate 14 is hinged at the front end of the front beam 13, a first mounting seat 15 is arranged at the position, close to the front beam 13, of the lower part of the top beam 1, a second mounting seat 16 is arranged at the position, close to the top beam 1, of the lower part of the front beam 13, the bottom end of a front beam jack 18 is hinged with the first mounting seat 15, and the front end of a telescopic rod of the front beam jack 18 is hinged with the second mounting seat 16; and a third mounting seat 17 is arranged at the lower part of the side protection plate 14 close to the front beam 13, the bottom end of a side protection jack 19 is hinged with the second mounting seat 16, and the front end of a telescopic rod of the side protection jack 19 is hinged with the third mounting seat 17.
When coal mining work is carried out, the lower hydraulic cylinder barrel 7 moves downwards along the guide barrel 2 to enable the column shoe 3 to be connected with the bottom, the upper hydraulic cylinder barrel 5 moves upwards along the guide barrel 2 to enable the top beam 1 to be connected with the top, and the forepoling support is in a supporting state; when the reversed loader 21 moves, the lower hydraulic cylinder 7 moves upwards along the guide cylinder 2 to enable the column shoe 3 to be bottomed, the upper hydraulic cylinder 5 moves downwards along the guide cylinder 2 to enable the top beam 1 to be topped, and the forepoling is in a retracting state.
While the present invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various changes can be made in the specific parameters of the embodiments without departing from the spirit of the present invention, and that various specific embodiments can be made, which are common variations of the present invention and will not be described in detail herein.
Claims (8)
1. An integrated forepoling for a head of a reversed loader is characterized by comprising a top beam, wherein vertical guide cylinders are respectively arranged at positions, located on the front side and the rear side of the reversed loader motor, below the top beam, a column shoe is arranged below the guide cylinders, a transverse fixing plate is arranged in the middle of each guide cylinder, an upper upright column is arranged in each guide cylinder and located above the corresponding fixing plate, each upper upright column comprises an upper hydraulic cylinder barrel and an upper movable column located in the upper hydraulic cylinder barrel, the upper end of each upper hydraulic cylinder barrel is hinged to the top beam, and the lower end of each upper movable column is fixedly connected with the top surface of the corresponding fixing plate; the upper hydraulic cylinder barrel moves in the guide barrel and is used for driving the top beam to move up and down;
a lower upright post is arranged in the guide cylinder and below the fixed plate, the lower upright post comprises a lower hydraulic cylinder barrel and a lower movable post arranged in the lower hydraulic cylinder barrel, the lower end of the lower hydraulic cylinder barrel is hinged with a post shoe, and the top end of the lower movable post is fixedly connected with the bottom surface of the fixed plate; the lower hydraulic cylinder barrel moves in the guide barrel and is used for driving the column shoe to move up and down.
2. The integrated fore-bracket for the head of a reversed loader according to claim 1, wherein the connecting seats are respectively arranged outside the groove bodies on the front side and the rear side of the reversed loader motor, at least two sets of connecting lug plates are arranged on the connecting seats, the mounting plate is arranged on the guide cylinder corresponding to the connecting seats, the mounting lug plates are respectively arranged on the mounting plate corresponding to the connecting lug plates of each set, and the mounting lug plates are fixedly connected with the corresponding connecting lug plates.
3. The integrated advance support for the head of the reversed loader as claimed in claim 2, wherein the connecting ear plate is provided with a vertical long round hole, the mounting ear plate is provided with a circular fixing hole, and the mounting ear plate is fixedly connected with the corresponding connecting ear plate through a pin shaft.
4. The integrated fore-support for the head of a reversed loader according to claim 3, wherein the fixing hole for mounting the lug plate is not located at the lowest end of the oblong hole for connecting the lug plate.
5. The integrated forepoling for the head of the reversed loader according to claim 1, characterized in that a front beam is hinged at the front end of the top beam, a side protection plate is hinged at the front end of the front beam, a first mounting seat is arranged at the lower part of the top beam close to the front beam, a second mounting seat is arranged at the lower part of the front beam close to the top beam, the bottom end of a front beam jack is hinged with the first mounting seat, and the front end of a telescopic rod of the front beam jack is hinged with the second mounting seat; and a third mounting seat is arranged at the position, close to the front beam, of the lower part of the side protection plate, the bottom end of the side protection jack is hinged with the second mounting seat, and the front end of a telescopic rod of the side protection jack is hinged with the third mounting seat.
6. The integrated fore support for a head of a reversed loader according to claim 1, wherein a ball joint is provided at the bottom end of the lower hydraulic cylinder, and a connector matching the ball joint is provided at the top end of the column shoe.
7. The integrated fore support for a reversed loader head according to claim 1, characterized in that the top end of the upper hydraulic cylinder is hinged with the top beam by a pin.
8. The integrated forepoling for the head of the reversed loader according to claim 1, characterized in that when coal mining work is carried out, the lower hydraulic cylinder barrel moves downwards along the guide cylinder to connect the bottom of the column shoe, the upper hydraulic cylinder barrel moves upwards along the guide cylinder to connect the top beam with the top, and the forepoling is in a supporting state;
when the reversed loader moves, the lower hydraulic cylinder barrel moves upwards along the guide cylinder to enable the column shoe to be separated from the bottom, the upper hydraulic cylinder barrel moves downwards along the guide cylinder to enable the top beam to be separated from the top, and the forepoling is in a retraction state.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210602909.9A CN114837718A (en) | 2022-05-30 | 2022-05-30 | Integrated forepoling for head of reversed loader |
| PCT/CN2023/087622 WO2023231584A1 (en) | 2022-05-30 | 2023-04-11 | Integrated forepole used for reversed loader head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210602909.9A CN114837718A (en) | 2022-05-30 | 2022-05-30 | Integrated forepoling for head of reversed loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114837718A true CN114837718A (en) | 2022-08-02 |
Family
ID=82572740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210602909.9A Pending CN114837718A (en) | 2022-05-30 | 2022-05-30 | Integrated forepoling for head of reversed loader |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114837718A (en) |
| WO (1) | WO2023231584A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231584A1 (en) * | 2022-05-30 | 2023-12-07 | 郑州煤矿机械集团股份有限公司 | Integrated forepole used for reversed loader head |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2037349A6 (en) * | 1969-02-20 | 1970-12-31 | Gewerk Eisenhuette Westfalia | |
| SU1280127A1 (en) * | 1984-12-17 | 1986-12-30 | Подмосковный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Arrangement for moving power support unit |
| CN207847673U (en) * | 2017-12-30 | 2018-09-11 | 梁宝林 | A kind of Full-mechanized mining working face ended support shifting holder connection device |
| CN112576295B (en) * | 2020-12-16 | 2022-06-03 | 郑州煤矿机械集团股份有限公司 | Supporting advancing mechanism for transportation roadway |
| CN112576293B (en) * | 2020-12-16 | 2022-07-08 | 郑州煤矿机械集团股份有限公司 | Transportation roadway supporting and transporting integrated system |
| CN214170587U (en) * | 2020-12-25 | 2021-09-10 | 山西王家岭煤业有限公司 | Simple and easy forepoling |
| CN114412531A (en) * | 2022-03-04 | 2022-04-29 | 中煤北京煤矿机械有限责任公司 | Integrated synchronous sliding forepoling of reversed loader |
| CN114837718A (en) * | 2022-05-30 | 2022-08-02 | 郑州煤矿机械集团股份有限公司 | Integrated forepoling for head of reversed loader |
-
2022
- 2022-05-30 CN CN202210602909.9A patent/CN114837718A/en active Pending
-
2023
- 2023-04-11 WO PCT/CN2023/087622 patent/WO2023231584A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231584A1 (en) * | 2022-05-30 | 2023-12-07 | 郑州煤矿机械集团股份有限公司 | Integrated forepole used for reversed loader head |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023231584A1 (en) | 2023-12-07 |
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