CN112879060B - Fixing device for hydraulic support pushing rod connector - Google Patents
Fixing device for hydraulic support pushing rod connector Download PDFInfo
- Publication number
- CN112879060B CN112879060B CN202110177448.0A CN202110177448A CN112879060B CN 112879060 B CN112879060 B CN 112879060B CN 202110177448 A CN202110177448 A CN 202110177448A CN 112879060 B CN112879060 B CN 112879060B
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- groove
- pushing
- base groove
- pushing rod
- hydraulic
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- 230000000903 blocking effect Effects 0.000 claims abstract description 46
- 230000009471 action Effects 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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
- E21D23/04—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
- E21D23/049—Connecting devices between the head or foot of a prop and the cap or base of the roof support
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a fixing device of a pushing rod connector of a hydraulic support, which comprises a hydraulic pushing rod and a pushing groove; the connecting head of the hydraulic pushing rod is arranged in the groove at the end part of the pushing groove through a pin shaft; the pushing device also comprises a base groove, wherein the pushing groove is arranged in the base groove, and a pair of first blocking strips are arranged on the inner side wall of the base groove above the pushing groove; a pair of second blocking strips are arranged on the outer side wall of the pushing groove corresponding to the first blocking strips; the first blocking strip and the second blocking strip are used for preventing the pushing groove from picking out the base groove under the pulling action of the hydraulic pushing rod; a pair of pin rods used for pressing the pin shafts are arranged above the pin shafts on two sides of the connecting head of the hydraulic pushing rod, and the pin rods are arranged on the supporting seat. The invention has the advantages of simple and convenient improvement scheme and low cost, effectively reduces the problem that the tail part of the pushing rod lifts up the groove when the jack is pulled and moved, and improves the use reliability of equipment.
Description
Technical Field
The invention relates to a mine tool, in particular to a pushing rod of a hydraulic support.
Background
The hydraulic support for caving the top coal is a supporting and coal caving device for a fully-mechanized coal mining face of a thick coal seam, and is suitable for mining of the thick coal seam and an extra thick coal seam and mining of a steeply inclined thick coal seam; the device can effectively support and manage the top plate, control caving the top coal and isolate the goaf; the device can push the front scraper conveyor to move forward and push the front scraper conveyor and pull the rear scraper conveyor; the mechanical working face is matched with equipment such as a coal cutter, a conveyor and the like for use, so that the mechanization of the coal face is realized. Meanwhile, the method plays an important role in improving work efficiency, increasing yield, guaranteeing personnel and equipment safety, reducing labor intensity and the like.
On the stoping face, the hydraulic support ZF4800-14/28 is used to push the rod to generate slot-out blocking and damage is repeated. Through many times of field operation check, it is found that when the end support pushes the working face scraper-trough conveyer aircraft nose or tail, the pushing phenomenon will appear in the push groove extension pushing slip, need many times of operations make the push rod extend and withdraw and accomplish pushing slip, because support push rod connector department atress makes the push rod afterbody pick up the groove when the drawing of jack moves, will lead to push rod card dead or damage when the plot is serious, need the manual replacement to handle the damage push rod, because the end support push rod length is very big at the degree of difficulty when 2.25 meters is changed, bring very big inconvenience for the work.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the fixing device for the pushing rod connector of the hydraulic support, which has the advantages of simple structure and convenience in use.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a fixing device of a hydraulic support pushing rod connector comprises a hydraulic pushing rod and a pushing groove; the connecting head of the hydraulic pushing rod is arranged in the groove at the end part of the pushing groove through a pin shaft; the pushing groove is arranged in the first base groove;
The pushing device also comprises a second base groove, wherein the pushing groove is arranged in the second base groove, a pair of first blocking strips are arranged on the inner side wall of the second base groove above the pushing groove; a pair of second blocking strips are arranged on the outer side wall of the pushing groove corresponding to the first blocking strips; the first blocking strip and the second blocking strip are used for preventing the pushing groove from picking out the second base groove under the pulling action of the hydraulic pushing rod; the second base groove is arranged at the end part of the first base groove;
a pair of pin rods used for pressing the pin shafts are arranged above the pin shafts on two sides of the connecting head of the hydraulic pushing rod, and the pin rods are arranged on the supporting seat.
Further, the supporting seat is a pair of supporting blocks arranged on two sides of the pin shaft, the pin rod is fixedly arranged on the pair of supporting blocks in a penetrating mode, and the pair of supporting blocks are fixedly arranged in the pushing groove.
Further, the first blocking strip is arranged in the second base groove in an extending mode, and the first blocking strip and the second base groove are integrally arranged.
Further, at least two reinforcing ribs are arranged on the first blocking strip, the reinforcing ribs are arranged on the inner wall of the second base groove in an extending mode, and the reinforcing ribs are perpendicular to the first blocking strip.
Further, the second blocking strip is a round steel pipe welded on the outer wall of the pushing groove, the length of the round steel pipe is 200-300 mm, the pipe diameter of the round steel pipe is 20-30 mm, and the gap between the round steel pipe and the second base groove is 10-20 mm.
Further, an oil film for lubrication is further arranged between the round steel pipe and the second base groove.
Further, a chute with a rectangular section is arranged on the connecting surface of the first base groove and the second base groove, and a clamping groove with an inverted trapezoid section is arranged below the chute;
The connecting surface of the second base groove and the first base groove is provided with a T-shaped clamping block, a vertical block of the T-shaped clamping block is matched with the sliding groove, a transverse bottom block of the T-shaped clamping block is clamped in the trapezoidal clamping groove, and a supporting clamping piece matched with the cavity is arranged in a clamping groove cavity below the transverse bottom block.
Further, a connecting nose for assembling and disassembling the second base groove is arranged on the second base groove.
The beneficial effects of the invention are as follows: the invention has the advantages of simple and convenient improvement scheme and low cost, effectively reduces the problem that the tail part of the pushing rod lifts up the groove when the jack is pulled, strengthens the strength of the connecting pin rod, reduces the safety and labor intensity of personnel and the damage rate to equipment in the production process of a mine, ensures safe production, improves the use reliability of the equipment, and saves the production cost by about 3 ten thousand yuan.
Drawings
FIG. 1 is a schematic top view of embodiment 1 of the present invention;
FIG. 2 is a schematic diagram showing the front view of embodiment 1 of the present invention;
FIG. 3 is a schematic view showing the structure of the connection surface of the second base groove according to embodiment 2 of the present invention;
Fig. 4 is a schematic view showing the structure of the connection surface of the first base groove in embodiment 2 of the present invention.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
In the stoping working face in the pit, the ZF4800-14/28 hydraulic support pushing rod is often used for showing a groove blocking phenomenon, so that the pushing rod is blocked or damaged, the difficulty is great when the length of the end support pushing rod is changed by 2.25 meters, inconvenience is brought to stoping work, the problem is solved simply and with low cost by adopting the blocking strips which are arranged on the base groove and the pushing groove in a matching way, meanwhile, the strength of a connecting head pin shaft of the hydraulic pushing rod is increased by adopting the pair of pin rods 5, the strength of the connecting head is effectively increased, and the service life of the hydraulic pushing rod 2 is prolonged.
Example 1: as shown in fig. 1, a fixing device of a pushing rod connector of a hydraulic support comprises a hydraulic pushing rod 2 and a pushing groove 1; the connector 21 of the hydraulic pushing rod 2 is arranged in the groove at the end part of the pushing groove 1 through the pin shaft 3; the pushing groove 1 is arranged in the first base groove 6;
The pushing device also comprises a second base groove 4, wherein the pushing groove 1 is arranged in the second base groove 4, and a pair of first blocking strips 41 are arranged on the inner side wall of the second base groove 4 above the pushing groove 1; a pair of second blocking strips 42 are arranged on the outer side wall of the pushing groove 1 corresponding to the first blocking strips 41; the first blocking strip 41 and the second blocking strip 42 are used for preventing the pushing groove 1 from picking out the second base groove 4 under the pulling action of the hydraulic pushing rod 2; the first blocking strip 41 is extended and arranged in the second base groove 4, and the first blocking strip 41 and the second base groove 4 are integrally arranged. At least two reinforcing ribs 43 are arranged on the first blocking strip 41, and the reinforcing ribs 43 are arranged on the inner wall of the second base groove 4 in an extending mode and are perpendicular to the first blocking strip 41. The second base groove 4 is arranged at the end part of the first base groove 6;
The second blocking strip 42 is a round steel pipe welded on the outer wall of the pushing groove 1, the length of the round steel pipe is 200-300 mm, and the pipe diameter of the round steel pipe is 20-30 mm. The gap between the round steel pipe and the second base groove 4 is 10-20 mm.
Above the pin shafts 3 on both sides of the connecting head 21 of the hydraulic pushing rod 2, a pair of pin rods 5 for pressing the pin shafts 3 are provided, and the pair of pin rods 5 are mounted on a supporting seat 52. The supporting seat 52 is a pair of supporting blocks arranged on two sides of the pin shaft 3, the pin rod 5 is fixedly arranged on the pair of supporting blocks in a penetrating way, and the pair of supporting blocks are fixedly arranged in the pushing groove 1.
The second base groove 4 is provided with a connecting nose 44 for attaching and detaching the second base groove 4.
When the hydraulic pushing rod 2 is subjected to pushing and pulling force in the underground stoping working face, the second blocking strip 42 is clamped on the first blocking strip 41, so that the pushing groove 1 is prevented from picking out the second base groove 4 under the pulling and moving action of the hydraulic pushing rod 2, the production safety is ensured, the first blocking strip 41 is provided with the reinforcing ribs 43, and the blocking force of the first blocking strip 41 is increased; meanwhile, a pin rod is fixed above the pin shaft 3, so that the strength and the service life of the pin shaft are improved.
Example 2 is the same as example 1, except that: a chute 61 with a rectangular section is arranged on the connecting surface of the first base groove 6 and the second base groove 4, and a clamping groove 62 with an inverted trapezoid section is arranged below the chute 61;
The connecting surface of the second base groove 4 and the first base groove 6 is provided with a T-shaped clamping block 45, a vertical block of the T-shaped clamping block 45 is matched with the sliding groove 61, a transverse bottom block of the T-shaped clamping block 45 is clamped in the trapezoidal clamping groove 62, and a supporting clamping piece matched with the cavity is arranged in a cavity of the clamping groove 62 below the transverse bottom block.
In order to further increase the strength of the end part of the moving rod, the invention is completed by adopting the sliding groove 61 and the trapezoid clamping groove 62 to be matched with the T-shaped clamping block 45 and the supporting clamping piece, and simultaneously, the installation of the second base groove 4 is also convenient, when the second base groove 4 is installed, the connecting nose 44 is lifted, the T-shaped clamping block 45 is installed in the sliding groove 61 and clamped through the communicating channel of the sliding groove 61 and the trapezoid clamping groove 62, and then the supporting clamping piece is used for clamping, so that the installation is completed.
Example 3: the same as in example 1, except that: the second blocking strip 42 is a round steel pipe welded on the outer wall of the pushing groove 1, the length of the round steel pipe is 20mm, and the pipe diameter of the round steel pipe is 20mm. The clearance between the round steel pipe and the second base groove 4 is 20mm.
Example 4 is the same as example 3, except that the second blocking strip 42 is a round steel pipe welded to the outer wall of the pushing groove 1, the length of the round steel pipe is 300mm, and the pipe diameter is 30mm. The clearance between the round steel pipe and the second base groove 4 is 10mm.
Example 5 is the same as example 3, except that the second blocking strip 42 is a round steel pipe welded to the outer wall of the pushing groove 1, the length of the round steel pipe is 250mm, and the pipe diameter is 25mm. The clearance between the round steel pipe and the second base groove 4 is 15mm.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The fixing device of the hydraulic support pushing rod connector is characterized by comprising a hydraulic pushing rod (2) and a pushing groove (1); the connector (21) of the hydraulic pushing rod (2) is arranged in the groove at the end part of the pushing groove (1) through the pin shaft (3); the pushing groove (1) is arranged in the first base groove (6);
The pushing device also comprises a second base groove (4), wherein the pushing groove (1) is arranged in the second base groove (4), a pair of first blocking strips (41) are arranged on the inner side wall of the second base groove (4) above the pushing groove (1); a pair of second blocking strips (42) are arranged on the outer side wall of the pushing groove (1) corresponding to the first blocking strips (41); the first blocking strip (41) and the second blocking strip (42) are used for preventing the pushing groove (1) from picking out the second base groove (4) under the pulling action of the hydraulic pushing rod (2); the second base groove (4) is arranged at the end part of the first base groove (6);
A pair of pin rods (5) for pressing the pin shafts (3) are arranged above the pin shafts (3) on two sides of the connector (21) of the hydraulic pushing rod (2), and the pin rods (5) are arranged on the supporting seat (52);
The supporting seat (52) is a pair of supporting blocks arranged on two sides of the pin shaft (3), the pin rod (5) is fixedly arranged on the pair of supporting blocks in a penetrating way, and the pair of supporting blocks are fixedly arranged in the pushing groove (1);
The first blocking strip (41) is arranged in the second base groove (4) in an extending mode, and the first blocking strip (41) and the second base groove (4) are integrally arranged.
2. The fixing device of the pushing rod connector of the hydraulic support according to claim 1, wherein at least two reinforcing ribs (43) are arranged on the first blocking strip (41), and the reinforcing ribs (43) are arranged on the inner wall of the second base groove (4) in an extending manner and are perpendicular to the first blocking strip (41).
3. The fixing device of the pushing rod connector of the hydraulic support according to claim 1, wherein the second blocking strip (42) is a round steel pipe welded on the outer wall of the pushing groove (1), the length of the round steel pipe is 200-300 mm, the pipe diameter is 20-30 mm, and the gap between the round steel pipe and the second base groove (4) is 10-20 mm.
4. A fixing device for a hydraulic support pushing rod connector according to claim 3, characterized in that an oil film for lubrication is also provided between the round steel pipe and the second base groove (4).
5. The fixing device of the pushing rod connector of the hydraulic support according to claim 1, characterized in that a chute (61) with a rectangular cross section is arranged on the connecting surface of the first base groove (6) and the second base groove (4), and a clamping groove (62) with an inverted trapezoid cross section is arranged below the chute (61);
The connecting surface of the second base groove (4) and the first base groove (6) is provided with a T-shaped clamping block (45), a vertical block of the T-shaped clamping block (45) is matched with the sliding groove (61), a transverse bottom block of the T-shaped clamping block (45) is clamped in the trapezoidal clamping groove (62), and a supporting clamping piece matched with the cavity is arranged in a cavity of the clamping groove (62) below the transverse bottom block.
6. A fixing device for a hydraulic carrier bar connection according to any one of claims 1-5, characterized in that a connection nose (44) for attaching and detaching the second base groove (4) is provided on the second base groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110177448.0A CN112879060B (en) | 2021-02-09 | 2021-02-09 | Fixing device for hydraulic support pushing rod connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110177448.0A CN112879060B (en) | 2021-02-09 | 2021-02-09 | Fixing device for hydraulic support pushing rod connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112879060A CN112879060A (en) | 2021-06-01 |
| CN112879060B true CN112879060B (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110177448.0A Active CN112879060B (en) | 2021-02-09 | 2021-02-09 | Fixing device for hydraulic support pushing rod connector |
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| Country | Link |
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| CN (1) | CN112879060B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214366155U (en) * | 2021-02-09 | 2021-10-08 | 陕西陕煤韩城矿业有限公司 | Fixing device for hydraulic support pushing rod connector |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3315313A1 (en) * | 1983-04-27 | 1984-10-31 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | CONTROL VALVE WITH DEAD MAN CONTROL |
| CN101852085B (en) * | 2010-05-27 | 2012-05-23 | 周超 | Bracket special for safety exit of coal face |
| 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 |
| DE102012102458B3 (en) * | 2012-03-22 | 2013-05-23 | Halbach & Braun Industrieanlagen GmbH & Co. KG | Height control system for a coal planer and coal planer |
| CN102877873A (en) * | 2012-09-29 | 2013-01-16 | 淮南矿业(集团)有限责任公司 | Hydraulic support assembly device and hydraulic support assembly system |
| CN211314258U (en) * | 2019-11-28 | 2020-08-21 | 神华国能集团有限公司 | Equipment train for mine |
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2021
- 2021-02-09 CN CN202110177448.0A patent/CN112879060B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214366155U (en) * | 2021-02-09 | 2021-10-08 | 陕西陕煤韩城矿业有限公司 | Fixing device for hydraulic support pushing rod connector |
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| CN112879060A (en) | 2021-06-01 |
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