CN216841757U - Energy-absorbing impact-resistant anchorage device assembly - Google Patents
Energy-absorbing impact-resistant anchorage device assembly Download PDFInfo
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- CN216841757U CN216841757U CN202220446501.2U CN202220446501U CN216841757U CN 216841757 U CN216841757 U CN 216841757U CN 202220446501 U CN202220446501 U CN 202220446501U CN 216841757 U CN216841757 U CN 216841757U
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Abstract
The utility model relates to an energy-absorbing anti-impact anchorage device assembly, include: the energy-absorbing impact-resistant self-aligning pad is arranged on the base plate; the energy-absorbing impact-resistant anchor ring is sleeved on the steel strand, and the outer wall of the energy-absorbing impact-resistant anchor ring is provided with external threads; the upper end part of the energy-absorbing impact-resistant anchor ring is in threaded connection with the energy-absorbing impact-resistant aligning pad, and an internal thread through hole matched with the external thread is axially formed in the energy-absorbing impact-resistant aligning pad. The utility model discloses can the effective absorption percussion power, improve under the impact load anchor built-up part shock resistance, keep the anchor power of anchor rope.
Description
Technical Field
The utility model belongs to the technical field of the colliery is strutted, a mining energy-absorbing anchorage device subassembly that shocks resistance is related to, especially a mining energy-absorbing anchorage device subassembly that shocks resistance that has anti impact load, adapts to the high earth pressure and warp greatly.
Background
The coal mining roadway needs to be supported by an anchor rope, the common anchor rope consists of a steel strand, an anchor assembly part and a tray, during construction, a hole is drilled in a coal seam (or rock stratum), a resin anchoring agent is fed into a drilled hole channel, then the steel strand is stirred to be bonded with the resin anchoring agent, the lower end of the steel strand is sleeved on the steel strand by a tray supporting anchor, the steel strand is tightly attached to the coal seam, and finally the steel strand is tensioned and anchored by a clamping piece anchor, so that the supporting function of the anchor rope is completed.
However, the coal seam dislocation and the change of the ground pressure occur at any time in the coal mining process, the anchor cable bears sudden impact load at many times, when the instant ground pressure impact force with the strength higher than the breaking force of the anchor cable is generated, the anchor cable does not generate slow extension time at all, the anchor cable can be directly broken or the anchor device slips, so that the anchoring failure is caused, the anchor device cracks, bites off the steel strand and flies and collapses, the anchoring force of the anchor cable is lost, and great potential safety hazard is caused to the coal mine.
Therefore, how to develop a mining energy-absorbing impact-resistant anchor assembly with impact load resistance and high ground pressure and large deformation adaptability is a technical problem to be solved urgently by technical personnel in the field.
Through search, the patent documents of the prior art which are the same as or similar to the present invention are not found.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide an energy-absorbing ground tackle subassembly that shocks resistance, can the effective absorption work of impact, improve under the impact load anchor built-up part shock resistance, keep the anchor power of anchor rope.
The utility model provides a its realistic problem take following technical scheme to realize:
an energy absorbing impact resistant anchor assembly comprising: the energy-absorbing impact-resistant self-aligning pad is arranged on the base plate; the energy-absorbing impact-resistant anchor ring is sleeved on the steel strand, and the outer wall of the energy-absorbing impact-resistant anchor ring is provided with external threads; the upper end part of the energy-absorbing impact-resistant anchor ring is in threaded connection with the energy-absorbing impact-resistant aligning pad, and an internal thread through hole matched with the external thread is axially formed in the energy-absorbing impact-resistant aligning pad.
And the energy-absorbing impact-resistant anchor ring is T-shaped, the small end part of the energy-absorbing impact-resistant anchor ring is in threaded connection with the energy-absorbing impact-resistant aligning pad, the large end part of the energy-absorbing impact-resistant aligning pad is in threaded connection with the anchor ring cover, and the anchor ring cover is provided with a central through hole for penetrating and installing a steel strand.
And the upper half part of the outer surface of the energy-absorbing impact-resistant aligning pad is a spherical surface and forms spherical surface contact with a base plate arranged above the energy-absorbing impact-resistant aligning pad, and the lower half part of the outer surface of the energy-absorbing impact-resistant aligning pad is a cylindrical surface.
Moreover, the backing plate is a conical surface backing plate or a plane backing plate.
Moreover, a central inner hole is arranged on the energy-absorbing impact-resistant anchor ring, and the clamping piece is detachably arranged in the central inner hole; the clamping piece is a three-part clamping piece or a four-part clamping piece, the central inner hole of the energy-absorbing impact-resistant anchor ring is made into a conical surface, and the conical surface is matched with the outer end surface shape of the three-part clamping piece or the four-part clamping piece.
Moreover, the four-segment clip is conical, comprising: the two clamping pieces are oppositely arranged, and an elastic groove is formed in the middle of each clamping piece.
The utility model has the advantages and beneficial effect:
the utility model provides an energy-absorbing ground tackle subassembly that shocks resistance loops through backing plate, energy-absorbing aligning pad that shocks resistance, energy-absorbing anchor ring, clamping piece and anchor ring lid effectively absorb the percussion power in proper order, improves anchor assembly spare shock resistance under the impact load, keeps the anchor power of anchor rope.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the energy absorbing rear impact resistant anchor assembly of the present invention in a state;
FIG. 3 is a schematic structural view of the energy-absorbing impact-resistant aligning pad of the present invention;
FIG. 4 is a schematic structural view of the energy-absorbing impact-resistant anchor ring of the present invention;
FIG. 5 is a schematic view of the anchor ring cover of the present invention;
fig. 6 is a schematic view of a four-segment clip of the present invention;
description of the reference numerals:
1-a backing plate; 2-steel strand wires; 3-energy-absorbing impact-resistant aligning pad; 4-energy-absorbing impact-resistant anchor ring; 5-a clamping piece; 6-anchor ring cover; 7-a central through hole; 8-a central inner bore; 9-an internal threaded through hole; 5-1-elastic groove.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings:
an energy absorbing impact resistant anchor assembly, as shown in figures 1 to 6, comprising: the energy-absorbing impact-resistant self-aligning pad is arranged on the base plate; the energy-absorbing impact-resistant anchor ring is sleeved on the steel strand, and the outer wall of the energy-absorbing impact-resistant anchor ring is provided with external threads; the upper end part of the energy-absorbing impact-resistant anchor ring is in threaded connection with the energy-absorbing impact-resistant aligning pad, and an internal thread through hole matched with the external thread is axially formed in the energy-absorbing impact-resistant aligning pad.
In this embodiment, the energy-absorbing impact-resistant anchor ring is T-shaped, the small end of the energy-absorbing impact-resistant anchor ring is in threaded connection with the energy-absorbing impact-resistant aligning pad, the large end of the energy-absorbing impact-resistant aligning pad is in threaded connection with the anchor ring cover, and the anchor ring cover is provided with a central through hole for penetrating and installing a steel strand.
In this embodiment, the upper half portion of the outer surface of the energy-absorbing impact-resistant aligning pad is a spherical surface, and forms a spherical contact with the pad plate installed above the energy-absorbing impact-resistant aligning pad, and the lower half portion is a cylindrical surface.
In this embodiment, the backing plate is a conical backing plate or a planar backing plate.
In this embodiment, a central inner hole is formed in the energy-absorbing impact-resistant anchor ring, and the clamping piece is detachably mounted in the central inner hole; the clamping piece is a three-part clamping piece or a four-part clamping piece, the central inner hole of the energy-absorbing impact-resistant anchor ring is made into a conical surface, and the conical surface is matched with the outer end surface shape of the three-part clamping piece or the four-part clamping piece.
In this embodiment, the four-segment clip is a cone, including: the two clamping pieces are oppositely arranged, and an elastic groove is formed in the middle of each clamping piece.
In this embodiment, the inner wall of the four split clamping pieces is in a tooth shape.
The following further explains each component of the present invention:
an inner hole of the energy-absorbing impact-resistant aligning pad is provided with an internal thread through hole, and the internal thread of the through hole is matched with the external thread of the energy-absorbing impact-resistant anchor ring;
the upper half part of the outer part of the energy-absorbing impact-resistant aligning pad is a spherical surface and forms spherical surface contact with the anchor backing plate, and the lower half part of the outer part of the energy-absorbing impact-resistant aligning pad is a cylindrical surface;
the inner hole of the energy-absorbing impact-resistant anchor ring is made into a conical surface and matched with the four-segmentation clamping piece, the outer part of the energy-absorbing impact-resistant anchor ring is made into a T shape, the outer diameter of the energy-absorbing impact-resistant anchor ring is made into an external thread, the external thread at the small end is matched with the energy-absorbing impact-resistant aligning pad, and the external thread at the large end is connected with the anchor ring cover;
the anchor ring cover is made into a through hole, the steel strand penetrates out of the through hole, the inner hole of the cover is provided with threads, and the internal threads are connected with the energy-absorbing impact-resistant anchor ring;
the shock-resistant base plate is a square steel plate, the shock-resistant base plate is in two shapes, one is a conical tray, the middle of the conical tray is punched into a cone, a through hole is formed in the middle of the raised cone, the through hole is also a spherical surface and is matched with the shock-resistant aligning pad to form surface contact; the other one is a plane backing plate, a through hole is formed in the middle of the plane backing plate, and the through hole is in a spherical shape and is matched with a common shock-resistant anchor ring;
the four-split clamping piece is made into a cone and then cut into two pieces, and an elastic groove is cut in the middle of each piece to form the four-split clamping piece which is convenient to sleeve on the steel strand to clamp the steel strand; closely attached to the steel strand, and the inner hole of the clamping piece is made into a tooth shape to be occluded with the steel strand.
The utility model discloses a theory of operation is:
when high ground pressure (mine pressure) suddenly comes, the coal bed suddenly moves downwards, impact energy acts on the conical surface (overtaking collision) base plate, the conical base plate is subjected to elastic-plastic deformation, and a small part of the impact energy is absorbed;
the conical base plate transmits force to the energy-absorbing impact-resistant aligning pad, the upper end of the energy-absorbing impact-resistant aligning pad is designed to be spherical, and when the initial installation is not correct or the aligning tray is deformed due to ground pressure change, the aligning pad can be aligned and aligned along with the deformation condition of the tray, so that the anchor cable is in an ideal stress state to the maximum extent; an inner hole of the energy-absorbing impact-resistant aligning pad is processed into threads and is in threaded connection with the energy-absorbing impact-resistant anchor ring;
the energy-absorbing impact-resistant anchor ring is designed into a T-shaped structure, the outer part of the energy-absorbing impact-resistant anchor ring is processed into threads which are matched with the threads of the aligning pad, and when high ground pressure arrives, the outer threads of the energy-absorbing impact-resistant anchor ring and the inner threads of the aligning pad generate larger extrusion deformation to absorb most of impact energy;
the clamping piece is designed into a four-segmentation shape, is more tightly attached to the steel strand than a common three-piece clamping piece, and has an impact resistance function; impact load is more effectively transferred to the steel strand;
the energy-absorbing impact-resistant anchor ring and the clamping piece transmit impact load to the steel strand, and the steel strand produces a certain amount of elongation and absorbs a part of impact energy;
an anchor ring end cover is additionally arranged at the outer end of the clamping piece, an inner hole of the anchor ring end cover is made into threads and is in threaded connection with the T-shaped anchor ring, after the steel strand is tensioned, the anchor ring end cover is screwed down to press the clamping piece, and the clamping piece is prevented from falling off when impact load comes.
The utility model discloses a working process is:
when the utility model works, as shown in figure 1 and figure 2, the steel strand is sequentially provided with a backing plate, an energy-absorbing impact-resistant aligning pad, an energy-absorbing impact-resistant anchor ring, four split clamping pieces and an anchor ring cover. The method comprises the steps of preparing a reserved hole channel on a base plate and the side wall of a mine, penetrating a steel strand, anchoring the steel strand, installing an anchorage device assembly part, and stretching and fixing.
When high ground pressure (mine pressure) suddenly arrives, the coal bed suddenly moves downwards, impact power acts on the base plate, the base plate is subjected to elastic-plastic deformation, and a small part of the impact power is absorbed; the base plate transmits force to the energy-absorbing impact-resistant aligning pad, and the threaded connection part of the energy-absorbing impact-resistant aligning pad and the energy-absorbing impact-resistant anchor ring generates large extrusion deformation, so that displacement is generated, and a large part of impact energy is absorbed;
the energy-absorbing impact-resistant anchor ring and the four-division clamping piece transmit impact load to the steel strand, and the steel strand produces a certain amount of elongation and absorbs a part of impact energy;
the four-division clamping piece and the energy-absorbing impact-resistant anchor ring generate a small amount of displacement to absorb a small amount of impact energy;
the size of the connecting thread of the energy-absorbing impact-resistant aligning pad and the energy-absorbing impact-resistant anchor ring of the utility model firstly ensures that the static load efficiency coefficient of the anchor reaches the national standard requirement; the design value of the thread bearing capacity is 80% -90% of the breaking load of the steel strand, the thread bearing capacity is ensured to be smaller than the yield load of the steel strand, and when the steel strand is safely borne and is not damaged, the thread deforms firstly, moves and absorbs impact energy.
It should be emphasized that the embodiments of the present invention are illustrative and not restrictive, and thus the present invention includes but is not limited to the embodiments described in the detailed description, and all other embodiments that can be derived from the technical solutions of the present invention by those skilled in the art also belong to the scope of the present invention.
Claims (6)
1. An energy-absorbing impact-resistant anchor assembly, characterized in that: the method comprises the following steps: the energy-absorbing impact-resistant self-aligning pad is arranged on the base plate; the energy-absorbing impact-resistant anchor ring is sleeved on the steel strand, and the outer wall of the energy-absorbing impact-resistant anchor ring is provided with external threads; the upper end part of the energy-absorbing impact-resistant anchor ring is in threaded connection with the energy-absorbing impact-resistant aligning pad, and an internal thread through hole matched with the external thread is axially formed in the energy-absorbing impact-resistant aligning pad.
2. The energy absorbing impact resistant anchor assembly of claim 1, wherein: the energy-absorbing impact-resistant anchor ring is T-shaped, the small end of the energy-absorbing impact-resistant anchor ring is in threaded connection with the energy-absorbing impact-resistant aligning pad, the large end of the energy-absorbing impact-resistant aligning pad is in threaded connection with the anchor ring cover, and the anchor ring cover is provided with a central through hole for penetrating and installing a steel strand.
3. The energy absorbing impact resistant anchor assembly of claim 1, wherein: the upper half part of the outer surface of the energy-absorbing impact-resistant aligning pad is a spherical surface and forms spherical surface contact with a base plate arranged above the energy-absorbing impact-resistant aligning pad, and the lower half part of the outer surface of the energy-absorbing impact-resistant aligning pad is a cylindrical surface.
4. The energy absorbing impact resistant anchor assembly of claim 1, wherein: the backing plate is a conical surface backing plate or a plane backing plate.
5. The energy absorbing impact resistant anchor assembly of claim 1, wherein: the energy-absorbing impact-resistant anchor ring is provided with a central inner hole, and the clamping piece is detachably arranged in the central inner hole; the clamp piece is a three-part clamp piece or a four-part clamp piece, the central inner hole of the energy-absorbing impact-resistant anchor ring is made into a conical surface, and the conical surface is matched with the shape of the outer end surface of the three-part clamp piece or the four-part clamp piece.
6. The energy absorbing impact resistant anchor assembly of claim 5, wherein: the four-segmentation clamping piece is a cone and comprises: the two clamping pieces are oppositely arranged, and an elastic groove is formed in the middle of each clamping piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220446501.2U CN216841757U (en) | 2022-03-02 | 2022-03-02 | Energy-absorbing impact-resistant anchorage device assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220446501.2U CN216841757U (en) | 2022-03-02 | 2022-03-02 | Energy-absorbing impact-resistant anchorage device assembly |
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| Publication Number | Publication Date |
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| CN216841757U true CN216841757U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220446501.2U Active CN216841757U (en) | 2022-03-02 | 2022-03-02 | Energy-absorbing impact-resistant anchorage device assembly |
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| Country | Link |
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| CN (1) | CN216841757U (en) |
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- 2022-03-02 CN CN202220446501.2U patent/CN216841757U/en active Active
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