CN217380593U - Supporting frame for fully mechanized coal mining roadway of coal mine - Google Patents
Supporting frame for fully mechanized coal mining roadway of coal mine Download PDFInfo
- Publication number
- CN217380593U CN217380593U CN202221343100.0U CN202221343100U CN217380593U CN 217380593 U CN217380593 U CN 217380593U CN 202221343100 U CN202221343100 U CN 202221343100U CN 217380593 U CN217380593 U CN 217380593U
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- Prior art keywords
- arch
- supporting frame
- fully mechanized
- rotating shaft
- coal mine
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- 239000003245 coal Substances 0.000 title claims abstract description 35
- 238000005065 mining Methods 0.000 title claims abstract description 16
- 238000013016 damping Methods 0.000 claims abstract description 19
- 230000003139 buffering effect Effects 0.000 claims abstract description 11
- 239000011435 rock Substances 0.000 abstract description 21
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 238000007569 slipcasting Methods 0.000 abstract description 4
- 101150097977 arch-1 gene Proteins 0.000 description 10
- 239000002734 clay mineral Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The utility model relates to a coal petrography tunnel support technical field, concretely relates to combined mining for tunnel braced frame in colliery, include: the top arch, the buffering arch layer, the arch beam, the connection damping rotating shaft, the fixed bottom plate and the limiting sliding beam, wherein the top arch and the arch beam are rotatably connected through the connection damping rotating shaft, the top arch and the buffering arch layer are fixedly connected through a connecting pin, the arch beam is slidably mounted on the limiting sliding beam, and the limiting sliding beam is arranged on the top surface of the fixed bottom plate. The support frame of traditional rigid connection is reformed, adopts the stronger frame of moving property to replace to add the structure of establishing reinforcing self intensity in support frame, prevent because can't realize the slip casting and consolidate support frame deformation that causes. Meanwhile, a supporting buffer structure is additionally arranged at the top of the supporting frame, so that the condition that rock stratum loosening and falling caused by the weak property of the coal rock roadway cause damage to constructors is prevented.
Description
Technical Field
The utility model relates to a coal petrography tunnel support technical field, concretely relates to combined mining for tunnel braced frame in colliery.
Background
Along with the development, construction, crushing and extremely soft rock roadway support problems of a new coal area are gradually highlighted, the roadway deformation presents continuous nonlinear large deformation characteristics, and great difficulty is brought to coal mine construction. The special surrounding rock contains expansive clay minerals with high proportion, has poor rock stratum cementation degree and belongs to an extremely soft rock stratum with mechanical strength. Compared with the traditional complex condition roadway, the hard rock stratum is not formed in the occurrence range of the coal seam, the rock stratum is difficult to form a bearing structure, the strong expansion deformation is easy to cause the loss of the prestress of the anchor rod, and the stable and effective bearing structure is difficult to form for anchoring and supporting; the traditional shed type support is difficult to resist the huge expansion deformation energy of surrounding rocks, and meanwhile, because the specific gravity of the clay minerals with strong expansibility is large, a grouting reinforcement mode is difficult to implement, and the combination of the existing support mode and the related support mode cannot achieve the expected support effect at all.
Among the prior art, traditional roadway support frame often adopts and erects matched with frame construction according to the tunnel specification scene to this frame construction adopts rigid connection usually, in case fixed just can't change. Meanwhile, because the rock stratum of the coal rock roadway is weak, the grouting reinforcement mode is difficult to realize. And the specific gravity of the strongly expansive clay mineral is large, and the strongly expansive clay mineral needs to be coped with by a supporting and buffering structure so as to prevent loose rock falling.
In view of this, it is urgently needed to design a supporting frame for a fully mechanized coal mining roadway for a coal mine, reform a traditional rigidly connected supporting frame, replace the supporting frame with a frame with strong mobility, and add a structure for enhancing self strength in the supporting frame to prevent the deformation of the supporting frame caused by the incapability of grouting reinforcement. Meanwhile, a supporting buffer structure is additionally arranged at the top of the supporting frame, so that the condition that rock stratum loosening and falling caused by the weak property of the coal rock roadway cause damage to constructors is prevented.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough of above prior art, the utility model aims to provide a supporting frame for colliery full mechanized mining tunnel reforms traditional rigid connection's supporting frame, adopts the stronger frame of moving property to replace to add the structure of establishing reinforcing self intensity in supporting frame, prevent because can't realize that the slip casting reinforces the supporting frame deformation that causes. Simultaneously, a supporting and buffering structure is additionally arranged at the top of the supporting frame, so that the condition that rock stratum is loosened and falls due to the weak property of the coal-rock roadway and the damage of constructors is avoided.
In order to realize the above object, the technical scheme of the utility model is that: a supporting frame for a fully mechanized coal mining roadway of a coal mine comprises: the top arch, the buffering arch layer, the arch beam, the connection damping rotating shaft, the fixed bottom plate and the limiting sliding beam, wherein the top arch and the arch beam are rotatably connected through the connection damping rotating shaft, the top arch and the buffering arch layer are fixedly connected through a connecting pin, the arch beam is slidably mounted on the limiting sliding beam, and the limiting sliding beam is arranged on the top surface of the fixed bottom plate.
Further, the crown includes: the rigid beam unit is provided with a certain curvature, and the rigid beam unit is rotatably connected with the connecting damping rotating shaft.
Furthermore, a bolt head is fixedly installed on the upper outer wall surface of the rigid beam unit, and threads are carved on the inner diameter surface of the bolt head.
Furthermore, the buffer arch layer is provided with a bolt head clamping groove, the tail end of the inner diameter surface of the clamping groove is carved with threads, and the rigid beam unit is in threaded connection with the buffer arch layer through a connecting bolt.
Further, spacing sliding beam includes: spacing latch groove, slip girder and flexible spacing tooth, spacing latch groove bottom is provided with flexible spacing tooth, slip girder fixed mounting be in spacing latch groove top surface, the arched door roof beam is worn to establish slip girder outer diameter face.
Furthermore, the bottom of the arched door beam is provided with a limiting clamping groove, and the limiting clamping groove is matched with the telescopic limiting teeth.
Has the advantages that:
the utility model provides a pair of supporting frame for coal mine fully mechanized mining tunnel reforms traditional rigid connection's supporting frame, adopts the stronger frame of moving property to replace to add the structure of establishing reinforcing self intensity in supporting frame, prevent because unable realization slip casting is consolidated and the supporting frame deformation that causes. Meanwhile, a supporting buffer structure is additionally arranged at the top of the supporting frame, so that the condition that rock stratum loosening and falling caused by the weak property of the coal rock roadway cause damage to constructors is prevented.
Drawings
Fig. 1 is a schematic structural view of a supporting frame for a fully mechanized coal mining roadway of the utility model;
the labels in the figure are: 1-top arch, 2-buffer arch layer, 3-arch beam, 4-connection damping rotating shaft, 5-fixed bottom plate, 6-limit sliding beam, 11-rigid beam unit, 111-bolt head, 21-bolt head clamping groove, 61-limit clamping groove, 62-sliding main beam, 63-telescopic limit tooth and 64-limit clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in the figure, the utility model discloses a fully mechanized mining of coal mine is braced frame for tunnel, include: the top arch 1, the buffering encircles layer 2, arched door roof beam 3, connects damping pivot 4, PMKD 5 and spacing sliding beam 6, rotate through connecting damping pivot 4 between top arch 1 and the arched door roof beam 3 and be connected, the top arch 1 with cushion encircles and pass through connecting pin fixed connection between the layer 2, arched door roof beam 3 slidable mounting is in on the spacing sliding beam 6, spacing sliding beam 6 sets up PMKD 5 top surface.
Further, the crown 1 includes: the rigid beam unit 11 and connect damping pivot 4, the rigid beam unit 11 is provided with certain camber, the rigid beam unit 11 passes through connect damping pivot 4 and rotate the connection.
Further, a bolt head 111 is fixedly mounted on the outer wall surface of the rigid beam unit 11, and threads are carved on the inner diameter surface of the bolt head 111.
Further, the buffer arch layer 2 is provided with a bolt head clamping groove 21, the tail end of the inner diameter surface of the clamping groove is carved with threads, and the rigid beam unit 11 is in threaded connection with the buffer arch layer 2 through a connecting bolt.
Further, the limiting sliding beam 6 comprises: spacing bayonet socket 61, slip girder 62 and flexible spacing tooth 63, spacing bayonet socket 61 bottom is provided with flexible spacing tooth 63, slip girder 62 fixed mounting be in spacing bayonet socket 61 top surface, arched beam 3 wears to establish slip girder 62 external diameter face.
Furthermore, the bottom of the arched door beam 3 is provided with a limiting clamping groove 64, and the limiting clamping groove 64 is matched with the telescopic limiting teeth 63.
The working principle is as follows:
firstly, the amplitude of the crown arch 1 is adjusted according to the specification of the coal rock roadway, the crown arch 1 is provided with a rigid beam unit 11 and a connecting damping rotating shaft 4, the rigid beam unit 11 is provided with a certain amplitude and is rotationally connected through the first connecting damping rotating shaft 4, the connecting damping rotating shaft 4 only rotates in a single direction, a limiting block is arranged towards the face of the crown arch 1 and is arranged at the tail end of the rigid beam unit 11, and the span of the crown arch 1 can be adjusted.
Because the rigid beam unit 11 adjusts the arched door beam 3 and the rigid beam unit 11 by connecting the damping rotating shaft 4, after the adjustment is completed, because the rigid beam unit 11 of the top arch 1 is provided with the bolt head 111, and the bolt head 111 passes through the bolt head 111 through the connecting bolt and is fixedly connected with the bolt head clamping groove 21 of the buffer arch layer 2, so that the buffer arch layer 2 is fixedly installed on the top surface of the top arch 1.
Wherein, through bolt head 111 and bolt head draw-in groove 21 interconnect to fixed crown arch 1 and buffering hunch layer 2, through buffering hunch layer 2, thereby prevent that the coal seam is not hard up and produce the rockfall.
The fixed bottom plate 5 is provided with the limiting clamping tooth groove 61, the arched door beam 3 is connected in the limiting clamping tooth groove 61 in a sliding mode, the bottom of the limiting clamping tooth groove 61 is provided with the telescopic limiting teeth 63, the arched door beam 3 slides on the fixed bottom plate 5 in a sliding mode, the telescopic limiting teeth 63 rise and are embedded into the arched door beam 3, and therefore the arched door beam 3 is fixed and limited in the limiting clamping tooth groove 61.
Different spans of the whole support in the roadway are realized by utilizing the arched door beam 3 and the connecting damping rotating shaft 4 to be matched with the rigid beam unit 11.
The utility model provides a pair of fully mechanized roadway support frame in coal mine reforms the support frame of traditional rigid connection, adopts the stronger frame of moving property to replace to add the structure of establishing reinforcing self intensity in support frame, prevent because can't realize the slip casting and consolidate the support frame deformation that causes. Meanwhile, a supporting buffer structure is additionally arranged at the top of the supporting frame, so that the condition that rock stratum loosening and falling caused by the weak property of the coal rock roadway cause damage to constructors is prevented.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A supporting frame for a fully mechanized coal mining roadway of a coal mine comprises: the roof arch structure comprises a roof arch (1), a buffering arch layer (2), an arch beam (3), a connecting damping rotating shaft (4), a fixed base plate (5) and a limiting sliding beam (6), and is characterized in that the roof arch (1) is rotatably connected with the arch beam (3) through the connecting damping rotating shaft (4), the roof arch (1) is fixedly connected with the buffering arch layer (2) through a connecting pin, the arch beam (3) is slidably mounted on the limiting sliding beam (6), and the limiting sliding beam (6) is arranged on the top surface of the fixed base plate (5).
2. A support frame for a fully mechanized coal mining roadway for a coal mine according to claim 1, wherein the crown arch (1) comprises: the rigid beam unit (11) and the connection damping rotating shaft (4), the rigid beam unit (11) is provided with a certain curvature, and the rigid beam unit (11) is rotatably connected through the connection damping rotating shaft (4).
3. The supporting frame for the fully mechanized coal mining roadway of the coal mine according to claim 2, wherein a bolt head (111) is fixedly installed on the outer wall surface of the rigid beam unit (11), and the inner diameter surface of the bolt head (111) is carved with threads.
4. The supporting frame for the fully mechanized coal mining roadway of the coal mine according to claim 3, wherein the buffer arch layer (2) is provided with a bolt head clamping groove (21), the tail end of the inner diameter surface of the clamping groove is carved with threads, and the rigid beam unit (11) is in threaded connection with the buffer arch layer (2) through a connecting bolt.
5. A supporting frame for a fully mechanized coal mining roadway of a coal mine according to claim 4, wherein the limiting sliding beam (6) comprises: spacing bayonet socket (61), slip girder (62) and flexible spacing tooth (63), spacing bayonet socket (61) bottom is provided with flexible spacing tooth (63), slip girder (62) fixed mounting be in spacing bayonet socket (61) top surface, arched door roof beam (3) are worn to establish slip girder (62) outer diameter face.
6. The supporting frame for the fully mechanized mining roadway of the coal mine according to claim 5, wherein a limiting clamping groove (64) is formed at the bottom of the arched door beam (3), and the limiting clamping groove (64) is matched with the telescopic limiting teeth (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221343100.0U CN217380593U (en) | 2022-05-31 | 2022-05-31 | Supporting frame for fully mechanized coal mining roadway of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221343100.0U CN217380593U (en) | 2022-05-31 | 2022-05-31 | Supporting frame for fully mechanized coal mining roadway of coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217380593U true CN217380593U (en) | 2022-09-06 |
Family
ID=83090822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221343100.0U Expired - Fee Related CN217380593U (en) | 2022-05-31 | 2022-05-31 | Supporting frame for fully mechanized coal mining roadway of coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217380593U (en) |
-
2022
- 2022-05-31 CN CN202221343100.0U patent/CN217380593U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |