CN209892259U - Bolt pad and anchor rod roadway support frame and metal arched support using same - Google Patents
Bolt pad and anchor rod roadway support frame and metal arched support using same Download PDFInfo
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- CN209892259U CN209892259U CN201920761841.2U CN201920761841U CN209892259U CN 209892259 U CN209892259 U CN 209892259U CN 201920761841 U CN201920761841 U CN 201920761841U CN 209892259 U CN209892259 U CN 209892259U
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- China
- Prior art keywords
- elastic gasket
- support frame
- anchor rod
- elastic
- bolt
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Abstract
The embodiment of the utility model discloses bolt pad and stock tunnel support frame, metal arch support of using thereof, the bolt pad includes elastic gasket, elastic gasket is the domes that the high both ends in middle part are low to seted up the through-hole at elastic gasket's middle part, made elastic gasket install additional on support frame's connector. The embodiment of the utility model provides a through setting up arched elastic gasket, make elastic gasket's deformation initial force at least one times the moment of torsion load of support frame hookup location regulation, and install elastic gasket additional at the hookup location that the support frame pressurized is destroyed easily, utilize elastic gasket's deformability to improve the moulding ability of support frame, make the connector can allow the deformation volume to be many times ordinary hookup material under great load, reduce the damage, guarantee the validity of strutting, reduce the roof fall condition and take place, prevent to collapse the person of flying injury because of the bolt, and elastic gasket adopts the elastic steel to make, but reuse.
Description
Technical Field
The embodiment of the utility model provides a relate to roadway support technical field, concretely relates to bolt pad and stock tunnel support frame, metal arch support of using thereof.
Background
Common supporting modes of underground roadways of mine enterprises at the present stage are anchor bolt supporting and metal arch supporting. The theory applied by the two kinds of support is the gravity pressure of the rock mass under the condition of rock looseness. However, as time is prolonged, cracks in the rock body are increased, the rock body is expanded and the total volume is increased under the influence of temperature, humidity and rock weathering, so that surrounding rocks generate an expansion pressure on the supporting material. The inflation pressure value rises geometrically much greater than the calculated load gravitational pressure. The roadway support material cannot resist expansion pressure no matter how large the theoretical load is, so that the roadway support material can deform, break and lose support effectiveness no matter how strong the roadway support material is designed theoretically, and further roof collapse or people injury can be caused.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a bolt pad and stock tunnel support frame, metal arch support of using thereof to solve among the prior art because the supporting member pressurized deformation in tunnel leads to collapsing easily disconnected, lose the problem of strutting the utility.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
according to the utility model discloses an in the first aspect, a bolt pad is applied to tunnel support frame's connector, the bolt pad includes resilient gasket, wherein, resilient gasket is the domes that the high both ends in middle part are low, has seted up the through-hole at resilient gasket's middle part for install the hookup end at support frame additional.
Furthermore, the elastic gasket is provided with preformed holes on two sides of the through hole.
Further, the elastic gasket is made of elastic steel materials.
According to the utility model discloses in the second aspect of the embodiment, an anchor rod tunnel support frame, including stock, roof and stock dish, the anchor rod tunnel support frame still includes the utility model provides a bolt pad, the stock dish sets up on the bottom surface of roof, elastic gasket sets up in the below of stock dish, and elastic gasket's opening orientation stock dish, the stock passes roof, stock dish, elastic gasket from top to bottom in proper order to be equipped with the first nut of threaded connection on the stock in elastic gasket's below, make elastic gasket fastened between stock dish and first nut.
According to the utility model discloses the third aspect of embodiment, a metal arch support, including U type calorie of cable, fixing bolt, metal arch support still includes the utility model provides a bolt pad, elastic gasket sets up in the top of U type calorie of cable tip, and elastic gasket's opening towards the tip of U type calorie of cable, fixing bolt passes tip, the elastic gasket of U type calorie of cable from the bottom up in proper order to be equipped with the second nut of threaded connection on fixing bolt in the top of elastic gasket, make elastic gasket fasten between the tip of second nut and U type calorie of cable.
Furthermore, the two ends of the U-shaped clamping cable are respectively provided with a group of pressure yielding mechanisms comprising fixing bolts, elastic gaskets and second nuts.
The embodiment of the utility model provides a have following advantage: through setting up the arched elastic gasket, and install the elastic gasket additional in the hookup position that the support frame received the pressure easy destruction, make the initial force of deformation of elastic gasket at least one times the moment of torsion load of support frame hookup position regulation, utilize the deformability of elastic gasket to improve the moulding ability of support frame, make the coupling member can allow the deflection number under great load to be many times ordinary hookup material, reduce the damage, guarantee the validity of strutting, reduce the roof fall condition and take place, prevent to collapse the flier because of the bolt, and the elastic gasket adopts the elastic steel to make, but reuse.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic view of an overall structure of a bolt pad provided in embodiment 1 of the present invention;
fig. 2 is a structural side view of a bolt pad provided in embodiment 1 of the present invention;
FIG. 3 is a graph of the stress curve of a roadway support in the prior art;
fig. 4 is a stress curve diagram of a roadway support using a bolt pad provided in embodiment 1 of the present invention;
fig. 5 is a schematic view of an overall structure of a bolt pad according to embodiment 2 of the present invention;
fig. 6 is a schematic view of an overall structure of a bolt pad provided in embodiment 3 of the present invention.
In the figure: 1. an elastic pad; 11. a through hole; 12. reserving a hole; 2. an anchor rod; 3. a top plate; 4. an anchor plate; 5. a first nut; 6. a U-shaped clamping cable; 7. fixing the bolt; 8. a second nut.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 and fig. 2, the embodiment of the utility model provides a bolt pad, mainly be applied to the connector of tunnel support, including resilient gasket 1, wherein, resilient gasket 1 adopts the elastic steel material to make, make resilient gasket 1 have better elastic deformation ability, and set up resilient gasket 1 to be the low domes in the high both ends in middle part, when resilient gasket 1's convex part receives pressure, fix resilient gasket 1, make resilient gasket 1 can transmit the pressure branch that the load that the top bore produced to the both sides hunch foot and bear, and each cross-section of encircleing body all receives compressive stress, can not receive the bending like the roof beam, the lower part is drawn, ensure that resilient gasket 1 can bear great load. The through hole 11 has been seted up at the middle part of elastic gasket 1, install elastic gasket 1 additional on the connector of tunnel support frame through hole 11, make elastic gasket 1's deformation initial force at least one times the moment of torsion load of support frame hookup position regulation, utilize elastic gasket 1's deformability to improve the shaping ability of support frame, make the connector can allow the deformation volume to be many times ordinary hookup material under great load, reduce the damage, guarantee the validity of strutting, reduce the roof fall condition and take place, prevent to collapse the person of flying injury because of the bolt, and elastic gasket adopts the elastic steel to make, repeatedly usable. Preferably, the preformed holes 12 have been all seted up to the both sides that lie in through-hole 11 on elastic gasket 1, are convenient for process elastic gasket 1 based on setting up of two preformed holes 12.
As described above, the present application, through practical tests, obtains the following effects: the roadway pressure is set to be F, the deformation force of the supporting material is set to be L, the same initial pressure F0 is applied to the existing roadway support and the roadway support additionally provided with the elastic gasket 1 in the application, and the roadway pressure is gradually increased, referring to fig. 3, in the existing roadway support, when the deformation force of the supporting material reaches F1 under the action of the roadway pressure, the supporting material is broken; in addition, the roadway support using the elastic gasket 1 of the embodiment is added, when the deformation force of the support material reaches the maximum deformation under the action of the roadway pressure, the deformation force of the support material can continuously bear the roadway pressure (refer to fig. 4) under the buffer action of the elastic gasket 1, and the support material is easy to break when reaching L2, and at this time, the deformation force of the support material F2 is far greater than F1, so that the support effectiveness can be ensured.
Example 2
The embodiment of the utility model provides an anchor rod tunnel support frame, as shown in fig. 5, including stock 2, roof 3 and anchor rod dish 4, wherein, the anchor rod tunnel support frame still includes the utility model discloses the bolt pad that embodiment 1 provided, it is specific, anchor rod dish 4 sets up on the bottom surface of roof 3, elastic gasket 1 sets up in the below of anchor rod dish 4, and elastic gasket 1's opening towards anchor rod dish 4, and stock 2 passes roof 3, anchor rod dish 4, elastic gasket 1 from top to bottom in proper order to be equipped with threaded connection in elastic gasket 1's below and first nut 5 on the stock, make elastic gasket 1 fasten between anchor rod dish 4 and first nut 5, wherein, elastic gasket 1's through-hole 11 supplies stock 2 to pass.
The principle is that a support damage point of an anchor rod roadway is usually positioned at a thread position at the tail end of an anchor rod 2, namely, when the anchor rod roadway support frame is used for dealing with expansion pressure, support materials are damaged due to insufficient self plastic capacity, when the anchor rod roadway support frame is installed, the elastic gasket 1 is additionally installed in the mode, the deformation initial force of the elastic gasket 1 is at least one time of the torque load specified by the connection position of the support frame, the shaping capacity of the anchor rod 2 is improved by utilizing the deformability of the elastic gasket 1, the allowable deformation quantity of the anchor rod 2 under large load is multiple of that of common connection materials, damage is reduced, the support effectiveness is guaranteed, roof collapse is reduced, and people are prevented from being injured due to bolt collapse and flying.
Example 3
The embodiment of the utility model provides a metal arch support, as shown in fig. 6, including U type card cable 6, fixing bolt 7, wherein, stock tunnel support still includes the utility model discloses the bolt pad that embodiment 1 provided, it is specific, elastic gasket 1 sets up in the top of U type card cable 6 tip, and elastic gasket 1's opening towards U type card cable 6's tip, fixing bolt 7 from bottom to top passes U type card cable 6's tip, elastic gasket 1 in proper order to be equipped with threaded connection second nut 8 on fixing bolt 7 in elastic gasket 1's top, make elastic gasket 1 fasten between second nut 8 and U type card cable 6's tip. Wherein, the through hole 11 of the elastic gasket 1 is used for the fixing bolt 7 to pass through.
The principle is that a breaking point of a common metal arch support is usually located at the position of a U-shaped clamping cable 6 of the metal arch support, namely, when the metal arch support is used for coping with expansion pressure, support materials are damaged due to insufficient self plastic capability, when the U-shaped clamping cable 6 is installed on the metal arch support, the elastic gasket 1 is additionally installed in the mode, the deformation initial force of the elastic gasket 1 is at least one time of the torque load specified by the connection position of the support frame, the shaping capability of the U-shaped clamping cable 6 is improved by utilizing the deformability of the elastic gasket 1, the allowable deformation number of the U-shaped clamping cable 6 under large load is multiple of that of common connection materials, the damage is reduced, the support effectiveness is ensured, the roof collapse situation is reduced, and people are prevented from being injured due to bolt collapse.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. The utility model provides a bolt pad, is applied to the connector of tunnel support frame which characterized in that: the bolt pad comprises an elastic gasket (1), wherein the elastic gasket (1) is of an arch structure with high middle part and low two ends, and a through hole (11) is formed in the middle of the elastic gasket (1) and is used for being additionally arranged at the connecting end of the support frame.
2. The bolt pad of claim 1, wherein: preformed holes (12) are formed in the two sides, located in the through holes (11), of the elastic gasket (1).
3. The bolt pad of claim 1, wherein: the elastic gasket (1) is made of elastic steel materials.
4. The utility model provides an anchor rod tunnel support frame, includes stock (2), roof (3) and stock dish (4), its characterized in that: the anchor rod roadway support frame further comprises the bolt pad as claimed in any one of claims 1 to 3, wherein the anchor rod disc (4) is arranged on the bottom surface of the top plate (3), the elastic gasket (1) is arranged below the anchor rod disc (4), the opening of the elastic gasket (1) faces the anchor rod disc (4), the anchor rod (2) sequentially penetrates through the top plate (3), the anchor rod disc (4) and the elastic gasket (1) from top to bottom, a first nut (5) which is in threaded connection with the anchor rod (2) is arranged below the elastic gasket (1), and the elastic gasket (1) is fastened between the anchor rod disc (4) and the first nut (5).
5. The utility model provides a metal arch support, includes U type card cable (6), fixing bolt (7), its characterized in that: the metal arch support further comprises a bolt pad as claimed in any one of claims 1 to 3, wherein the elastic gasket (1) is arranged above the end part of the U-shaped clamping cable (6), the opening of the elastic gasket (1) faces the end part of the U-shaped clamping cable (6), the fixing bolt (7) sequentially penetrates through the end part of the U-shaped clamping cable (6) and the elastic gasket (1) from bottom to top, and a second nut (8) in threaded connection with the fixing bolt (7) is arranged above the elastic gasket (1), so that the elastic gasket (1) is fastened between the second nut (8) and the end part of the U-shaped clamping cable (6).
6. A metal dome support in accordance with claim 5, wherein: the two ends of the U-shaped clamping cable (6) are respectively provided with a set of yielding mechanisms comprising fixing bolts (7), elastic gaskets (1) and second nuts (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920761841.2U CN209892259U (en) | 2019-05-24 | 2019-05-24 | Bolt pad and anchor rod roadway support frame and metal arched support using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920761841.2U CN209892259U (en) | 2019-05-24 | 2019-05-24 | Bolt pad and anchor rod roadway support frame and metal arched support using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209892259U true CN209892259U (en) | 2020-01-03 |
Family
ID=69001275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920761841.2U Expired - Fee Related CN209892259U (en) | 2019-05-24 | 2019-05-24 | Bolt pad and anchor rod roadway support frame and metal arched support using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209892259U (en) |
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2019
- 2019-05-24 CN CN201920761841.2U patent/CN209892259U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 Termination date: 20210524 |