CN210440067U - Movable anchor protection piece can keep somewhere tunnel support rack - Google Patents
Movable anchor protection piece can keep somewhere tunnel support rack Download PDFInfo
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- CN210440067U CN210440067U CN201921111011.1U CN201921111011U CN210440067U CN 210440067 U CN210440067 U CN 210440067U CN 201921111011 U CN201921111011 U CN 201921111011U CN 210440067 U CN210440067 U CN 210440067U
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Abstract
The utility model relates to the field of mine equipment, and provides a movable anchor protection piece capable of retaining a tunnel supporting shed frame; comprises single supporting frames connected along the longitudinal direction; the single support shed frame comprises a space frame movably arranged on the bottom plate of the roadway through a one-way brake caster, a vault support fixedly connected to the top of the space frame, an anchor net limiting clamping groove and a support plate limiting clamping groove, wherein the anchor net limiting clamping groove is arranged on the vault support and is used for detachably clamping a steel mesh sheet, and the support plate limiting clamping groove is used for detachably clamping an anchor rod support plate; the space frame comprises four telescopic vertical columns which are vertically arranged in a rectangular manner, and a rectangular ring beam fixedly connected to the top ends of the telescopic vertical columns; the arch crown support comprises a plurality of arch beams which are uniformly distributed on the ring beam along the longitudinal direction of the ring beam and are parallel to the transverse direction of the ring beam, and reinforcing beams which are fixedly connected to the inner sides of the arch beams along the longitudinal direction of the arch crown support; the telescopic upright column comprises a lower column, an upper column movably arranged in the lower column, a driving cylinder hinged between the upper column and the lower column and a power source for providing power for the driving cylinder; the driving cylinders of the telescopic upright columns are the same, and all the driving cylinders are connected in parallel.
Description
Technical Field
The utility model relates to a mine equipment field provides a mine underworkings supporting device, is a portable anchor and protects the piece and can keep somewhere tunnel support rack for immigration tunnel is strutted and compaction roof in advance to the roof before tunnel support operations such as anchor net, stock, anchor spout, for the tunnel support operation personnel provide safety protection, after tunnel support operation is accomplished, the anchor is protected and is kept somewhere in the tunnel, this portable anchor is protected the piece and can keep somewhere tunnel support rack and wholly withdraw from for reuse.
Background
The construction of a mine underground roadway and a roadway type stope (such as an upward drift fill mining drift) is mostly carried out by adopting a pneumatic rock drill, the power source of the pneumatic rock drill is an air compressor or a compressed air station, and the compressed air station is generally adopted as the power source in consideration of safety.
When a roadway roof is unstable and needs to be supported, the roadway roof is generally supported by anchor rods, anchor nets, anchor shotcrete, supports, brickwork, concrete and the like. No matter what supporting mode is adopted, in the supporting operation process, operators still need to construct under the exposed top plate and are still threatened by dangerous factors such as roof fall, roadway rib stripping and the like, and safety risks exist.
A pipe shed supporting mode belongs to advanced supporting in roadway supporting, when the technology is implemented, a pipe shed is driven into a broken rock mass in advance and is pre-grouted for reinforcement, and then the broken rock mass is continuously tunneled in the reinforced rock mass.
The anchor protection part in the scheme refers to a steel bar net piece and an anchor rod supporting plate which are used in an anchor net support or anchor net spraying support mode when a roadway is supported.
Disclosure of Invention
The utility model aims at providing a tunnel support rack can be kept somewhere to portable anchor piece for immigration tunnel is strutted and the compaction roof in advance to the roof before tunnel support operation such as anchor net, anchor net spout, provides safety protection for the tunnel support operation personnel, and after the tunnel support operation is accomplished, the anchor piece is kept somewhere in the tunnel, and this portable anchor piece can keep somewhere the tunnel support rack and can wholly withdraw from with reuse.
The utility model aims at realizing through the following technical scheme:
a movable anchor protection piece indwelling roadway supporting shed frame comprises supporting shed frame single frames which are connected along the longitudinal direction; the single support shed frame comprises a space frame movably arranged on a roadway bottom plate through a one-way brake caster, a vault support fixedly connected to the top of the space frame, a mesh limiting clamping groove and a support plate limiting clamping groove, wherein the mesh limiting clamping groove is arranged on the vault support and is used for detachably clamping a steel mesh and the support plate limiting clamping groove is used for detachably clamping an anchor rod support plate; the space frame comprises four telescopic vertical columns which are vertically arranged in a rectangular manner, and a rectangular ring beam fixedly connected to the top ends of the telescopic vertical columns; the arch crown support comprises a plurality of arch beams which are uniformly distributed on the ring beam along the longitudinal direction of the ring beam and are parallel to the transverse direction of the ring beam, and reinforcing beams which are fixedly connected to the inner sides of the arch beams along the longitudinal direction of the arch crown support; the telescopic upright column comprises a lower column, an upper column movably arranged in the lower column, a driving cylinder hinged between the upper column and the lower column and a power source for providing power for the driving cylinder; the driving cylinders of the telescopic upright columns are the same, and all the driving cylinders are connected in parallel.
The utility model has the advantages that:
when the movable anchor protection piece is used, a single support shed frame can be used independently, or a plurality of support shed frames can be connected in series to form the movable anchor protection piece which can be used for retaining the roadway support shed frame. When a single support shed frame is used independently, the movable anchor protection piece can be used for retaining the roadway support shed frame, and the movable anchor protection piece can be used for retaining the roadway support shed frame as a single section of movable anchor protection piece, so that the movement is flexible; when two or more than two supporting shed frames are combined into the movable anchor protection piece in series to be capable of keeping the roadway supporting shed frame for use, the movable anchor protection piece can keep the roadway supporting shed frame as a plurality of sections of movable anchor protection pieces which can keep the roadway supporting shed frame, and the supporting operation efficiency is high.
When in specific use:
unlocking a braking device of the one-way braking caster;
moving the movable anchor protection piece indwelling roadway support shed frame to a support operation place along a roadway bottom plate, and enabling the longitudinal direction of the ring beam (namely the longitudinal direction of the movable anchor protection piece indwelling roadway support shed frame) to be along the longitudinal direction of the roadway;
a brake device for locking the one-way brake caster; determining whether to select a steel bar mesh and an anchor rod supporting plate according to needs (requirements of supporting operation subjects), if the supporting operation subjects are anchor net supporting or anchor net spraying supporting, selecting the steel bar mesh and the anchor rod supporting plate, and respectively clamping the steel bar mesh and the anchor rod supporting plate in a mesh limiting clamping groove and a supporting plate limiting clamping groove; if the support operation subject is a support mode other than an anchor net support mode or an anchor net spraying support mode, a steel bar net sheet and an anchor rod supporting plate do not need to be selected;
the power source drives the power cylinder execution rod to extend outwards to drive the upper column to move upwards, the vault support moves upwards in a translation mode until the vault support compacts roof loose surrounding rocks, the power cylinder execution rod is locked, the length of the telescopic upright column is fixed, and the movable anchor protection piece can be kept at the fixed height of the roadway support shed frame;
supporting operation is carried out, and an operator stands in the movable type anchor protection piece retainable roadway supporting shed frame and directly presses the anchor rod body into the anchor rod hole through the anchor rod supporting plate by adopting a rock drill and compacts the supporting plate and the reinforcing mesh;
after the supporting operation is finished, the power cylinder execution rod is unlocked, the power cylinder execution rod retracts, the height of the roadway supporting shed frame can be reduced by the movable anchor protection piece, the braking device of the one-way braking trundle is unlocked, the movable anchor protection piece can be withdrawn for reserving the roadway supporting shed frame, and the steel bar net piece and the anchor rod supporting plate are left on the top plate of the roadway.
The movable anchor protection piece can be kept in the roadway supporting shed frame and is used for moving into the roadway to pre-support and compact the top plate before roadway supporting operation such as anchor net spraying and the like, safety protection is provided for roadway supporting operation personnel, after the roadway supporting operation is completed, the anchor protection piece is kept in the roadway, and the movable anchor protection piece can be kept in the roadway supporting shed frame and can be withdrawn integrally for recycling.
The movable anchor protection piece can be used for retaining a roadway support shed frame, when the area to be supported of the roadway is larger than 8 square meters, the driving cylinder is a hydraulic cylinder, and the power source is a hydraulic station.
The movable anchor protection piece can be used for keeping a roadway supporting shed frame, when the area to be supported in the roadway is not more than 8 square meters, the driving cylinder is a cylinder, and the power source is a compressed air station of a pneumatic rock drill, so that a separately configured hydraulic station is omitted, and the use safety is improved.
The movable anchor protection piece can be kept in a roadway support shed frame, the effective stroke of the hydraulic cylinder and the air cylinder is 200-400 mm, and the rigidity of the hydraulic cylinder and the air cylinder execution rod is kept.
The movable anchor protection piece can be kept in a roadway support shed frame, and the distance between two adjacent arched girders is 200-300 mm. The arch beams are densely arranged, so that the strength of the arch crown support is improved, and the support is more reliable.
The movable anchor protection piece can be kept in a roadway support shed frame, and the length of the vault support is 1.5-2.5 m.
The movable anchor protection piece can be used for keeping a roadway support shed frame, and when the length of the arch crown support exceeds 2.5m, the arch crown support further comprises crossed diagonal draw bars fixedly connected between the stiffening beams and used for increasing the rigidity of the arch crown support.
The movable anchor protection piece can be used for retaining roadway supporting shed frames, and a plurality of supporting shed frames are combined in series into the supporting shed frames by using iron chains or U-shaped locks.
Drawings
FIG. 1 is a schematic perspective view of a single frame of a supporting shed;
FIG. 2 is a schematic structural view of a single support frame of the support shed provided with the steel mesh and the anchor supporting plate;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a side view of FIG. 2;
FIG. 5 is an enlarged view at A of FIG. 3;
FIG. 6 is a bottom view of FIG. 2;
fig. 7 is a top view of a space frame.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
referring to fig. 1, 2, 3 and 4, a movable anchor protection piece capable of retaining a roadway supporting shed frame comprises supporting shed frame single frames j connected along the longitudinal direction; the single support frame j of the support shed frame comprises a space frame k movably arranged on a roadway bottom plate through a one-way brake caster 1, a vault support g fixedly connected to the top of the space frame k, a mesh limiting clamping groove 6 arranged on the vault support g and used for detachably clamping a steel mesh 5, and a support plate limiting clamping groove 9 arranged on the vault support g and used for detachably clamping an anchor rod support plate 7; the space frame k comprises four telescopic vertical columns z which are vertically arranged in a rectangular manner, and an upper ring beam 8 which is fixedly connected to the top end of each telescopic vertical column z in a rectangular manner; the arch crown support g comprises a plurality of arched beams 4 which are uniformly distributed on the upper ring beam 8 along the longitudinal direction of the upper ring beam 8 and are parallel to the transverse direction of the upper ring beam 8, and reinforcing beams 41 which are fixedly connected to the inner sides of the arched beams 4 along the longitudinal g direction of the arch crown support; the telescopic upright column z comprises a lower column 2, an upper column 21 movably arranged in the lower column 2, a driving cylinder 3 hinged between the upper column 2 and the lower column 21 and a power source (not shown in the figure) for providing power for the driving cylinder 3; the driving cylinders 3 of the telescopic columns z are the same, and all the driving cylinders 3 are connected in parallel.
And the single support frame j of the support shed frame is of a carriage type structure as a whole.
The space frame k formed by the four telescopic upright posts z and the upper ring beam 8 and the lower ring beam 81 which are respectively fixedly connected at the upper end and the lower end of the four telescopic upright posts z is a space truss.
The unidirectional braking caster 1 fixed at four corners of the space frame k is a caster with a device (braking device) for stopping the rotation of the wheel, and can be selected according to GB/T14688 + 1993 for the prior art, which is not described herein.
The upper column 2 and the lower column 21 of the telescopic column z can be made of square steel, and typically the cylinder body of the built-in driving cylinder 3 is hinged on the lower column 21, and the actuating rod thereof is hinged on the upper column 2.
The oil (gas) supply manifolds of the four same driving cylinders 3 are connected into a hydraulic station (compressed air station) after one path, so that the four same driving cylinders 3 are connected in parallel.
Habitually, the area to be supported in the roadway is the projected area of the roadway section for supporting operation on the roadway bottom plate. The movable anchor protection piece can be kept in a tunnel supporting shed frame, when the area to be supported in a tunnel is not more than 8 square meters, the driving cylinder 3 is a cylinder, and the power source is a compressed air station of a pneumatic rock drill. When the area to be supported of the roadway is larger than 8 square meters, the driving cylinder 3 is a hydraulic cylinder, and the power source is a hydraulic station. In the embodiment, the area to be supported of the roadway is not more than 8 square meters, the driving cylinder 3 is a cylinder, and the power source is a compressed air station of the pneumatic rock drill.
The movable anchor protection piece can be kept in a roadway support shed frame, the effective stroke of the hydraulic cylinder and the air cylinder is 200-400 mm (the effective stroke of the hydraulic cylinder and the air cylinder is 300mm in the scheme), and the rigidity of the hydraulic cylinder and the air cylinder actuating rod is kept.
When the movable anchor protection piece is used for retaining a roadway support shed frame for supporting, the actuating rod of the driving cylinder 3 needs to be locked at a fixed height, and during specific implementation, the driving cylinder 3 with a self-locking device can be selected and the hydraulic or pneumatic passage can also be closed.
The movable anchor protection piece can be used for retaining a roadway support shed frame, and the bending degree of the arched beam 4 is consistent with that of a roadway top plate (cambered surface). The distance between two adjacent arched beams 4 fixedly connected to the upper ring beam 8 is 200 mm-300 mm (in the present case, the distance between two adjacent arched beams 4 is 250 mm). The arch beams 4 are densely arranged, so that the strength of the arch crown support g is increased, and the support is more reliable.
The movable anchor protection piece can be kept in a roadway supporting shed frame, the length of the arch crown support g is 1.5-2.5 m, namely the length of a single frame j of the supporting shed frame is 1.5-2.5 m (in the scheme, the length is 2.5 m).
The movable anchor protection piece can be retained in a roadway support shed frame, and when the length of the arch support j exceeds 2.5m, cross diagonal draw bars (not shown in the figure) for increasing the rigidity of the arch support g are fixedly connected between the reinforcing beams 41.
In order to reduce the manufacturing cost, the mesh limiting clamping groove 6 is an angle steel fixedly connected to the shoulder of the vault support j, and the supporting plate limiting clamping groove 9 is a channel steel fixedly connected to the vault support g.
The movable anchor protection piece can be used for retaining roadway supporting shed frames, and a plurality of supporting shed frames are connected in series by using iron chains or U-shaped locks (not shown in the figure) to form the supporting shed frames. In the scheme, a plurality of single supporting shed frames j are connected in series by using a U-shaped lock to form the supporting shed frame.
When the movable anchor protection piece is used, a single support shed frame can be used independently, or a plurality of support shed frames can be connected in series to form the movable anchor protection piece which can be used for retaining the roadway support shed frame. When a single support shed frame is used independently, the movable anchor protection piece can be used for retaining the roadway support shed frame, and the movable anchor protection piece can be used for retaining the roadway support shed frame as a single section of movable anchor protection piece, so that the movement is flexible; when the U-shaped lock is used for combining two or more than two supporting shed frames in a single frame in series to form the movable anchor protection piece capable of keeping the roadway supporting shed frame for use, the movable anchor protection piece capable of keeping the roadway supporting shed frame is a multi-section movable anchor protection piece capable of keeping the roadway supporting shed frame, and the supporting operation efficiency is high.
When in specific use:
unlocking the brake device of the caster;
moving the movable anchor protection piece indwelling roadway support canopy frame to a support operation place along a roadway bottom plate to enable the longitudinal direction of a single support of the support canopy frame to be along the longitudinal direction of the roadway;
a brake device for locking the caster; determining whether to select a steel bar mesh and an anchor rod supporting plate according to needs (requirements of supporting operation subjects), if the supporting operation subjects are anchor net supporting or anchor net spraying supporting, selecting the steel bar mesh and the anchor rod supporting plate, and respectively clamping the steel bar mesh and the anchor rod supporting plate in a mesh limiting clamping groove and a supporting plate limiting clamping groove; if the support operation subject is a support mode other than an anchor net support mode or an anchor net spraying support mode, a steel bar net sheet and an anchor rod supporting plate do not need to be selected;
the compressed air station drives the cylinder actuating rod to extend outwards to drive the upper column to move upwards, the vault support moves upwards in a translation mode until the vault support compacts surrounding rocks loosened by a top plate, the cylinder actuating rod is locked, the length of the telescopic upright column is fixed, and the movable anchor protection piece can be kept at the fixed height of the roadway support shed frame;
supporting operation is carried out, and an operator stands in the movable type anchor protection piece retainable roadway supporting shed frame and directly presses the anchor rod body into the anchor rod hole through the anchor rod supporting plate by adopting a rock drill and compacts the supporting plate and the reinforcing mesh;
after the supporting operation is finished, the cylinder execution rod is unlocked, the cylinder execution rod retracts, the height of the roadway supporting shed frame can be reduced by the movable anchor protection piece, the braking device of the caster is unlocked, the movable anchor protection piece can be withdrawn to reserve the roadway supporting shed frame for later use, and the steel bar net piece and the anchor rod supporting plate are left on the roadway top plate.
The utility model has the advantages that:
the movable anchor protection piece can be kept in the roadway supporting shed frame and is used for moving into the roadway to pre-support and compact the top plate before roadway supporting operation such as anchor net and anchor net spraying, the reinforcing mesh piece can be used as a protective net to provide safety protection for roadway supporting operation personnel, after the roadway supporting operation is completed, the anchor protection piece is kept in the roadway, and the movable anchor protection piece can be kept in the roadway supporting shed frame and can be integrally withdrawn for recycling.
Simple structure, flexible movement and convenient use.
Claims (8)
1. A movable anchor protection piece capable of being kept in a roadway supporting shed frame is characterized by comprising supporting shed frame single frames which are connected along the longitudinal direction; the single support shed frame comprises a space frame movably arranged on the bottom plate of the roadway through a one-way brake caster, a vault support fixedly connected to the top of the space frame, an anchor net limiting clamping groove and a support plate limiting clamping groove, wherein the anchor net limiting clamping groove is arranged on the vault support and is used for detachably clamping a steel mesh sheet, and the support plate limiting clamping groove is used for detachably clamping an anchor rod support plate; the space frame comprises four telescopic vertical columns which are vertically arranged in a rectangular manner, and a rectangular ring beam fixedly connected to the top ends of the telescopic vertical columns; the arch crown support comprises a plurality of arch beams which are uniformly distributed on the ring beam along the longitudinal direction of the ring beam and are parallel to the transverse direction of the ring beam, and reinforcing beams which are fixedly connected to the inner sides of the arch beams along the longitudinal direction of the arch crown support; the telescopic upright column comprises a lower column, an upper column movably arranged in the lower column, a driving cylinder hinged between the upper column and the lower column and a power source for providing power for the driving cylinder; the driving cylinders of the telescopic upright columns are the same, and all the driving cylinders are connected in parallel.
2. The portable anchor protection piece indwelling roadway support canopy frame of claim 1, wherein when the area to be supported in the roadway is greater than 8 square meters, the driving cylinder is a hydraulic cylinder and the power source is a hydraulic station.
3. The portable anchor protection piece indwelling roadway support canopy frame of claim 1, wherein when the area to be supported in the roadway is not greater than 8 square meters, the driving cylinder is a cylinder and the power source is a compressed air station of a pneumatic rock drill.
4. The movable anchor-protecting piece indwelling roadway support canopy frame as claimed in any one of claims 1, 2 and 3, wherein the effective stroke of the hydraulic cylinder and the air cylinder is 200mm to 400 mm.
5. The portable type anchor and protection piece indwelling roadway support canopy frame as claimed in claim 1, wherein the distance between two adjacent arched girders is 200mm to 300 mm.
6. The portable type anchor and protection piece indwelling roadway support canopy frame as claimed in claim 1, wherein the length of the arch crown support is 1.5m to 2.5 m.
7. The portable type anchor detainable roadway support canopy frame of claim 1, wherein when the length of the arch support exceeds 2.5m, the arch support further comprises cross diagonal members fixedly connected between the reinforcing beams for increasing the rigidity of the arch support.
8. The portable type anchor keeping member retainable tunnel supporting shed frame as claimed in claim 1, wherein a plurality of supporting shed frames are combined in series into a supporting shed frame using an iron chain or a U-shaped lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921111011.1U CN210440067U (en) | 2019-07-16 | 2019-07-16 | Movable anchor protection piece can keep somewhere tunnel support rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921111011.1U CN210440067U (en) | 2019-07-16 | 2019-07-16 | Movable anchor protection piece can keep somewhere tunnel support rack |
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| Publication Number | Publication Date |
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| CN210440067U true CN210440067U (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921111011.1U Active CN210440067U (en) | 2019-07-16 | 2019-07-16 | Movable anchor protection piece can keep somewhere tunnel support rack |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047882A (en) * | 2021-02-28 | 2021-06-29 | 贵州壹站式装备科技有限公司 | Underground temporary supporting device |
| CN113622982A (en) * | 2021-09-13 | 2021-11-09 | 山东科技大学 | Supporting device for coal mine composite roof and using method thereof |
-
2019
- 2019-07-16 CN CN201921111011.1U patent/CN210440067U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047882A (en) * | 2021-02-28 | 2021-06-29 | 贵州壹站式装备科技有限公司 | Underground temporary supporting device |
| CN113622982A (en) * | 2021-09-13 | 2021-11-09 | 山东科技大学 | Supporting device for coal mine composite roof and using method thereof |
| CN113622982B (en) * | 2021-09-13 | 2023-08-08 | 山东科技大学 | Supporting device for coal mine composite roof and application method thereof |
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