CN213478375U - Temporary supporting structure for underground coal mine roadway - Google Patents
Temporary supporting structure for underground coal mine roadway Download PDFInfo
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- CN213478375U CN213478375U CN202022455789.3U CN202022455789U CN213478375U CN 213478375 U CN213478375 U CN 213478375U CN 202022455789 U CN202022455789 U CN 202022455789U CN 213478375 U CN213478375 U CN 213478375U
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- lifting device
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- cross beam
- supporting structure
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Abstract
The utility model discloses a temporary supporting structure of a coal mine underground tunnel, belonging to the field of coal mining equipment devices; the lifting device comprises a cross beam and lifting hydraulic jacks hinged to two ends of the cross beam, wherein the lifting hydraulic jacks are connected with a hydraulic driving device to form a lifting device, and the lifting device is divided into a front lifting device and a rear lifting device; two ends of the connecting rod are respectively and fixedly connected to the cross beams of the front lifting device and the rear lifting device; the utility model discloses solved current hydraulic support effectively because too heavy and metal prop and post when strutting, transportation and installation need consume a large amount of time, problem that supporting construction is safe enough moreover.
Description
Technical Field
The utility model relates to a coal mining equipment device field, concretely relates to temporary support structure in colliery underworkings.
Background
Due to the national conditions and the complexity of geological conditions of coal fields, blasting excavation and fully-mechanized excavating machines are still the most main mining modes of coal mines. The top of the blasting and excavating working face is supported by mostly single hydraulic props and hinged top beams, and individual local coal mines are also supported by metal props or wood pillars. The hydraulic support is a hydraulic power device which utilizes hydraulic pressure to generate supporting force to support and manage a top plate, and is indispensable supporting equipment for comprehensive mechanized coal mining. However, since the conventional hydraulic support is excessively heavy, it takes a lot of time to transport to the goaf and install. Also for the support using metal pillars and wooden poles, the erection takes longer, not to mention the effect on the efficiency of coal mining, which would cause an unpredictable loss if the coal wall collapsed due to stress changes during this period.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a colliery underworkings' temporary support structure to when solving current hydraulic support because too heavy and metal support and timber support strut, transportation and installation need consume a large amount of time, the not safe problem of supporting construction moreover.
In order to solve the above problem, the utility model provides a following technical scheme:
a temporary supporting structure of a coal mine underground roadway comprises a cross beam and jacking hydraulic jacks hinged to two ends of the cross beam, wherein the jacking hydraulic jacks are connected with a hydraulic driving device to form a lifting device, and the lifting device is divided into a front lifting device and a rear lifting device; two ends of the connecting rod are respectively and fixedly connected to the cross beams of the front lifting device and the rear lifting device.
The connecting rods are more than two and are uniformly arranged on the cross beams of the front lifting device and the rear lifting device.
A hydraulic telescopic rod is hinged to the beam along the longitudinal direction of the top supporting device; the number of the hydraulic telescopic rods is more than two, and an angle adjusting jack is hinged between the bottom of each hydraulic telescopic rod and the cross beam.
The cross beam comprises a cavity and two expansion jacks oppositely arranged in the cavity; the piston rod of the expansion jack faces outwards and is hinged with the piston rod of the jacking hydraulic jack.
A protective shell is arranged outside the jacking hydraulic jack; the protective shell is as high as the cylinder barrel of the jacking hydraulic jack.
The distance between the hinged position of the hydraulic telescopic rod and the angle adjusting jack and the cross beam is more than one third of the length of the rod body of the hydraulic telescopic rod.
The utility model discloses beneficial effect:
the utility model discloses a colliery underworkings's temporary support structure, simple structure, for metal pillar and post, the structure is more stable durable. And the weight is lighter than that of a traditional hydraulic support, and large-scale equipment is not needed to be used for conveying the hydraulic support to a coal face, so that a large amount of installation time can be saved. And the connecting rods can be disassembled for segmental transportation and installation, so that the supporting structure can be installed in place in the shortest time on the roadway working face, and the production safety is ensured. Meanwhile, the width of the temporary supporting structure is adjusted by adjusting the expansion jack in the cross beam so as to adapt to roadways with different widths, and the applicability is greatly increased. Moreover, the top supporting device is further provided with a hydraulic telescopic rod, so that the supporting area can be increased, the mounting work of the net bag can be assisted, and the practicability of the temporary supporting structure is greatly improved.
Drawings
Fig. 1 is a schematic mechanism diagram of the present invention;
fig. 2 is a schematic cross-sectional view of the cross beam of the present invention.
Description of reference numerals: 1. hydraulic telescopic rod, 2, jacking hydraulic jack, 3, crossbeam, 4, connecting rod, 5, angle adjusting jack.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
example (b):
referring to fig. 1, the temporary supporting structure for the underground roadway of the coal mine comprises a cross beam 3 and jacking hydraulic jacks 2 hinged to two ends of the cross beam 3, wherein the jacking hydraulic jacks 2 are connected with a hydraulic driving device to form a lifting device. The lifting device is divided into two groups of a front lifting device 6 and a rear lifting device 7; two ends of the connecting rod 4 are respectively fixedly connected to the cross beams 3 of the front lifting device 6 and the rear lifting device 7. Connecting rod 4 can be followed crossbeam 3 and pulled down, then separately transport to the tunnel working face assemble can, make things convenient for temporary support structure's transportation and installation. The utility model discloses an interim supporting construction simple structure, weight compare in traditional hydraulic support lighter, and the installation is also convenient more saves time. The supporting structure can be mounted in place in the shortest time at the top of the roadway working face, and the time that the top of the roadway structural face is short of supporting is reduced. And after the coal mining machine tunnels to a certain distance, replacing the temporary supporting structure with a traditional hydraulic support.
The hydraulic telescopic rod 1 is hinged to the cross beam 3 along the longitudinal direction of the top supporting device, so that the supporting area of the temporary supporting structure is increased, and the practicability of the device is improved; the number of the hydraulic telescopic rods 1 is more than two, and an angle adjusting jack 5 is hinged between the bottom of the hydraulic telescopic rods 1 and the cross beam 3. The angle adjusting jack 5 has the function of supporting the hydraulic telescopic rod 1. Can also adjust jack 5 through the shrink angle with the end of hydraulic telescoping rod 1 down, make things convenient for the staff to place devices such as string bag on hydraulic telescoping rod 1, hydraulic telescoping rod 1 delivers to the tunnel top with the string bag, the staff only need beat the rivet etc. can, need not to reuse long things such as bamboo poles and operate, increase the security of site operation.
As shown in fig. 2, the cross beam 3 includes a cavity 31 and two expansion jacks 32 installed in the cavity 31 in opposite directions; the piston rod of the expansion jack 32 faces outwards and is hinged with the piston rod of the jacking hydraulic jack 2. The top supporting device can be transversely expanded, the extending amount of the expansion jack is adjusted according to the width of a roadway, and the applicability of the temporary hydraulic support structure is improved.
A protective shell is arranged outside the jacking hydraulic jack 3; the protective shell is as high as the cylinder barrel of the jacking hydraulic jack 3. So as to ensure that the jacking hydraulic jack is not impacted by large coal blocks to cause the deformation of the cylinder barrel.
The distance between the hinged position of the hydraulic telescopic rod 1 and the angle adjusting jack 5 and the cross beam 3 is more than one third of the length of the rod body of the hydraulic telescopic rod 1. To ensure that the angle adjusting jack 5 has the force to support the hydraulic telescopic rod 1 against the top of the roadway.
Claims (6)
1. The utility model provides a colliery underworkings's temporary support structure, it includes by crossbeam (3) and articulate jacking hydraulic jack (2) at crossbeam (3) both ends, and jacking hydraulic jack (2) are connected with hydraulic drive device and are constituted elevating gear, its characterized in that: the lifting devices are divided into two groups, namely a front lifting device (6) and a rear lifting device (7); two ends of the connecting rod (4) are respectively and fixedly connected with the cross beam (3) of the front lifting device (6) and the rear lifting device (7).
2. The temporary supporting structure of the underground coal mine roadway according to claim 1, characterized in that: more than two connecting rods (4) are uniformly arranged on the cross beams (3) of the front lifting device (6) and the rear lifting device (7).
3. The temporary supporting structure of the underground coal mine roadway according to claim 1, characterized in that: a hydraulic telescopic rod (1) is hinged to the cross beam (3) along the longitudinal direction of the top supporting device; the number of the hydraulic telescopic rods (1) is more than two, and an angle adjusting jack (5) is hinged between the bottom of each hydraulic telescopic rod (1) and the cross beam (3).
4. The temporary supporting structure of the underground coal mine roadway according to claim 1, characterized in that: the cross beam (3) comprises a cavity (31) and two expansion jacks (32) which are oppositely arranged in the cavity (31); the piston rod of the expansion jack (32) faces outwards and is hinged with the piston rod of the jacking hydraulic jack (2).
5. The temporary supporting structure of the underground coal mine roadway according to claim 1, characterized in that: a protective shell is arranged outside the jacking hydraulic jack (2); the protection shell is as high as the cylinder barrel of the jacking hydraulic jack (2).
6. The temporary supporting structure of the underground coal mine roadway according to claim 3, wherein: the distance between the hinged position of the hydraulic telescopic rod (1) and the angle adjusting jack (5) and the cross beam (3) is more than one third of the length of the rod body of the hydraulic telescopic rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022455789.3U CN213478375U (en) | 2020-10-29 | 2020-10-29 | Temporary supporting structure for underground coal mine roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022455789.3U CN213478375U (en) | 2020-10-29 | 2020-10-29 | Temporary supporting structure for underground coal mine roadway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213478375U true CN213478375U (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202022455789.3U Active CN213478375U (en) | 2020-10-29 | 2020-10-29 | Temporary supporting structure for underground coal mine roadway |
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| CN (1) | CN213478375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183182A (en) * | 2021-12-24 | 2022-03-15 | 山东里能鲁西矿业有限公司 | Pressure-adjustable hydraulic gun supporting structure for fully mechanized mining of underground coal mine |
-
2020
- 2020-10-29 CN CN202022455789.3U patent/CN213478375U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183182A (en) * | 2021-12-24 | 2022-03-15 | 山东里能鲁西矿业有限公司 | Pressure-adjustable hydraulic gun supporting structure for fully mechanized mining of underground coal mine |
| CN114183182B (en) * | 2021-12-24 | 2024-03-19 | 山东里能鲁西矿业有限公司 | Pressure-adjustable hydraulic gun support structure for fully mechanized coal mining |
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