CN219366080U - Double-pushing end support special for gob-side entry retaining - Google Patents
Double-pushing end support special for gob-side entry retaining Download PDFInfo
- Publication number
- CN219366080U CN219366080U CN202223198135.2U CN202223198135U CN219366080U CN 219366080 U CN219366080 U CN 219366080U CN 202223198135 U CN202223198135 U CN 202223198135U CN 219366080 U CN219366080 U CN 219366080U
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- Prior art keywords
- pushing
- reciprocating driving
- gob
- double
- side entry
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a special double-pushing-head support for gob-side entry retaining, which comprises a main body pushing base, wherein an auxiliary pushing base is arranged on the side part of the main body pushing base; the main body pushing base is provided with a four-bar mechanism, a plurality of telescopic upright posts and two first reciprocating driving mechanisms; the upper ends of the four-bar mechanism and the plurality of telescopic upright posts are provided with top beams, the driving ends of the two first reciprocating driving mechanisms are hinged with push rods, and the driving ends of the auxiliary pushing base are provided with second reciprocating driving mechanisms. The double-pushing-end support special for gob-side entry retaining uses the push rod and the second reciprocating driving mechanism to cooperate with the pushing scraper conveyor, so that the pushing force of a single machine is increased, and the number of the end supports is reduced.
Description
Technical Field
The utility model belongs to the technical field of coal mine gob-side entry retaining supporting equipment, and particularly relates to a double-pushing-end bracket special for gob-side entry retaining.
Background
At present, each end hydraulic support of the fully mechanized mining face is provided with a set of pushing mechanism, so that in order to reliably push the scraper conveyor, more end hydraulic supports are generally arranged in an end region and simultaneously push the scraper conveyor head or tail, thereby bringing the following problems: 1) The number of the hydraulic supports at the end heads is increased; 2) The top beams of the hydraulic supports with the multiple ends have a large action range, so that the damage range to supporting structures such as roof bolts, anchor cables, steel belts and meshes in the end areas is large, the supporting strength of the roof is reduced, secondary reinforcement is needed after the support, and the workload is increased; 3) The hydraulic supports with the multiple ends repeatedly support the top plate, so that the integrity of surrounding rock of the top plate is damaged, and the self-bearing capacity of the surrounding rock is reduced.
Disclosure of Invention
The utility model aims to provide a special double-pushing-end support for gob-side entry retaining, which solves the problem that the existing scraper conveyor can be pushed only by assembling more hydraulic supports with ends.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the double-pushing-end support special for the gob-side entry retaining comprises a main body pushing base, wherein an auxiliary pushing base is arranged on the side part of the main body pushing base; the main body pushing base is provided with a four-bar mechanism, a plurality of telescopic upright posts and two first reciprocating driving mechanisms; the upper ends of the four-bar mechanism and the plurality of telescopic upright posts are provided with top beams, the driving ends of the two first reciprocating driving mechanisms are hinged with push rods, and the driving ends of the auxiliary pushing base are provided with second reciprocating driving mechanisms.
As a preferable technical scheme of the utility model, the front end of the top beam is hinged with two third reciprocating driving mechanisms, the driving end of each third reciprocating driving mechanism is hinged with an extension beam, and the extension beams are hinged at the front end of the top beam.
As a preferable technical scheme of the utility model, the first reciprocating driving mechanism, the second reciprocating driving mechanism and the third reciprocating driving mechanism are all oil cylinders.
As a preferable technical scheme of the utility model, the end part of the push rod and the telescopic end of the second reciprocating driving mechanism are both provided with connectors.
As a preferable technical scheme of the utility model, the connector is a U-shaped connector, and a pin shaft is arranged in the U-shaped connector.
The beneficial effects of the utility model are as follows: according to the double-pushing-end support special for gob-side entry retaining, disclosed by the utility model, the pushing rod and the second reciprocating driving mechanism are matched with the pushing scraper conveyor, so that the pushing force of a single unit is increased, the number of the end supports is reduced, the damage range to supporting structures such as roof bolts, anchor cables, steel belts and meshes in an end area is reduced, and the problems that the integrity of surrounding rocks of the roof is easily damaged and the self-bearing capacity of the surrounding rocks is reduced due to repeated supporting of the roof are avoided.
Drawings
Fig. 1 is a schematic structural view of a special double-pushing-end bracket for gob-side entry retaining.
FIG. 2 is a top view of the gob-side entry retaining dual push head support of the present utility model with the top beam, telescoping post and four bar linkage removed.
In the figure: 1. the main body pushing base, the telescopic upright post, the third reciprocating driving mechanism, the extension beam, the top beam, the four-bar mechanism, the first reciprocating driving mechanism, the push rod, the auxiliary pushing base, the second reciprocating driving mechanism and the connector are arranged in sequence.
Detailed Description
The technical scheme of the utility model is further described in detail below with reference to the accompanying drawings and the specific embodiments.
Referring to fig. 1, the double-pushing-head support special for gob-side entry retaining comprises a main pushing base 1 and an auxiliary pushing base 9, wherein the main pushing base is used for supporting.
With reference to fig. 2, the auxiliary pushing base 9 is welded to the side of the main pushing base 1.
Wherein: the main body pushing base 1 has a main supporting function and is used for supporting a four-bar mechanism 6, a plurality of telescopic upright posts 2 and two first reciprocating driving mechanisms 7 which are arranged on the main body pushing base; the auxiliary pushing base 9 plays an auxiliary supporting role for supporting the second reciprocating drive mechanism 10 provided thereon.
As shown in fig. 1, top beams 5 are arranged at the upper ends of the four-bar mechanism 6 and the plurality of telescopic upright posts 2, push rods 8 are hinged at the driving ends of the two first reciprocating driving mechanisms 7, and a second reciprocating driving mechanism 10 is arranged at the driving end of the auxiliary pushing base 9; the driving end of the push rod 8 and the driving end of the second reciprocating driving mechanism 10 are connected with the scraper conveyor head or tail.
When the telescopic vertical columns 2 are in an extending state during working, the top beams 5 support top plates and the like of the coal mine tunnel. After the coal cutter cuts one coal cutter, the first reciprocating driving mechanism 7 and the second reciprocating driving mechanism 10 of the double-pushing-end hydraulic support special for gob-side entry retaining extend out and push the scraper conveyor head or the scraper conveyor tail at the same time, the scraper conveyor head or the scraper conveyor tail is pushed forward by one step distance, then the telescopic upright post 2 contracts and lowers the top beam 5, and no acting force exists between the top beam 5 and the top plate at the moment. After that, the first reciprocating driving mechanism 7 and the second reciprocating driving mechanism 10 are contracted to pull the double-pushing-end hydraulic support special for gob-side entry retaining forwards by one step distance, and then the telescopic upright post 2 stretches out to enable the top beam 5 to prop against the top plate again, and the top beam returns to the initial state at the moment, so that a circulation operation is completed.
Referring to fig. 1, in the double-pushing-end support special for gob-side entry retaining, the front end of a top beam 5 is hinged with two third reciprocating driving mechanisms 3, the driving end of each third reciprocating driving mechanism 3 is hinged with an extension beam 4, and the extension beams 4 are hinged at the front end of the top beam 5.
The extension beam 4 can be driven to be flush with the top beam 5 through the third reciprocating driving mechanism 3, so that the supporting range of the top beam 5 is prolonged.
Referring to fig. 2, in the double-pushing-end support special for gob-side entry retaining according to the present utility model, the first reciprocating driving mechanism 7, the second reciprocating driving mechanism 10 and the third reciprocating driving mechanism 3 are all oil cylinders, so that sufficient power can be provided.
Referring to fig. 2, in the double-pushing-head support special for gob-side entry retaining according to the present utility model, the end portion of the push rod 8 and the telescopic end of the second reciprocating drive mechanism 10 are both provided with the connector 11.
The end of the push rod 8 and the telescopic end of the second reciprocating drive mechanism 10 can be connected with the head and the tail of the scraper conveyor through a connector 11.
Referring to fig. 2, in the special double-pushing-end bracket for gob-side entry retaining, the connector 11 is a U-shaped connector, and a pin is arranged in the U-shaped connector.
The U-shaped connector can be quickly connected with the machine head and the tail end of the scraper conveyor through the pin shaft, and the assembly is convenient.
Therefore, compared with the prior art, the double-pushing-end support special for gob-side entry retaining has the advantages that the pushing force of a single end support is increased by using the pushing rods and the second reciprocating driving mechanism to match with the pushing scraper conveyor, so that the number of the end supports is reduced, the damage range to supporting structures such as roof bolts, anchor cables, steel belts and meshes in the end areas is reduced, and the problems that the integrity of surrounding rocks of the roof is easily damaged and the self-supporting capacity of the surrounding rocks is reduced due to repeated supporting of the roof are avoided.
Claims (5)
1. The double-pushing-end support special for gob-side entry retaining is characterized by comprising a main body pushing base (1), wherein an auxiliary pushing base (9) is arranged on the side part of the main body pushing base (1); the main body pushing base (1) is provided with a four-bar mechanism (6), a plurality of telescopic upright posts (2) and two first reciprocating driving mechanisms (7); the upper ends of the four-bar mechanism (6) and the plurality of telescopic upright posts (2) are provided with top beams (5), the driving ends of the two first reciprocating driving mechanisms (7) are hinged with push rods (8), and the driving ends of the auxiliary pushing bases (9) are provided with second reciprocating driving mechanisms (10).
2. The double-pushing-end support special for gob-side entry retaining according to claim 1, wherein the front end of the top beam (5) is hinged with two third reciprocating driving mechanisms (3), the driving end of each third reciprocating driving mechanism (3) is hinged with an extension beam (4), and the extension beams (4) are hinged at the front end of the top beam (5).
3. The special double-pushing-end support for gob-side entry retaining according to claim 1, wherein the first reciprocating driving mechanism (7), the second reciprocating driving mechanism (10) and the third reciprocating driving mechanism (3) are all oil cylinders.
4. The double-pushing-head support special for gob-side entry retaining according to claim 1, wherein the end part of the push rod (8) and the telescopic end of the second reciprocating driving mechanism (10) are both provided with connectors (11).
5. The special double-pushing-end support for gob-side entry retaining according to claim 4, wherein the connector (11) is a U-shaped connector, and a pin shaft is arranged in the U-shaped connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223198135.2U CN219366080U (en) | 2022-11-30 | 2022-11-30 | Double-pushing end support special for gob-side entry retaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223198135.2U CN219366080U (en) | 2022-11-30 | 2022-11-30 | Double-pushing end support special for gob-side entry retaining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219366080U true CN219366080U (en) | 2023-07-18 |
Family
ID=87146730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223198135.2U Active CN219366080U (en) | 2022-11-30 | 2022-11-30 | Double-pushing end support special for gob-side entry retaining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219366080U (en) |
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2022
- 2022-11-30 CN CN202223198135.2U patent/CN219366080U/en active Active
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