CN213510672U - Reusable constant-resistance suspension top beam - Google Patents
Reusable constant-resistance suspension top beam Download PDFInfo
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- CN213510672U CN213510672U CN202022474143.XU CN202022474143U CN213510672U CN 213510672 U CN213510672 U CN 213510672U CN 202022474143 U CN202022474143 U CN 202022474143U CN 213510672 U CN213510672 U CN 213510672U
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- 239000000725 suspension Substances 0.000 title claims abstract description 15
- 238000010008 shearing Methods 0.000 claims abstract description 34
- 239000011435 rock Substances 0.000 claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 72
- 230000000903 blocking effect Effects 0.000 claims description 10
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 72
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
本实用新型提供一种可复用的恒阻悬吊顶梁，恒阻悬吊顶梁包括可回收顶梁与恒阻让压装置，恒阻让压装置固定于可回收顶梁下部，可回收顶梁包括箱型顶梁与剪断器，箱型顶梁紧贴围岩设置，箱型顶梁内部形成防护空间，锚索贯穿箱型顶梁锚固在围岩上；剪断器设置在箱型顶梁的防护空间内部，剪断器套设在锚索的外露端，用于剪断锚索以便回收恒阻悬吊顶梁。可回收顶梁不仅起到了常规顶梁维护围岩的作用，而且实现了整套恒阻悬吊顶梁的回收和再利用，有效降低了支护成本，箱型顶梁构成的简易防护空间，保护了剪断器在复杂环境下不易被损坏。
The utility model provides a reusable constant-resistance suspended ceiling beam. The constant-resistance suspended ceiling beam comprises a recyclable ceiling beam and a constant-resistance pressure-receiving device. Including box-shaped roof beams and shears, the box-shaped roof beams are set close to the surrounding rock, a protective space is formed inside the box-shaped roof beams, and the anchor cables run through the box-shaped roof beams to be anchored on the surrounding rock; the shears are arranged on the side of the box-shaped roof beams. Inside the protective space, a shearing device is sleeved on the exposed end of the anchor cable to cut the anchor cable so as to recover the constant resistance suspended ceiling beam. The recyclable roof beam not only plays the role of the conventional roof beam to maintain the surrounding rock, but also realizes the recovery and reuse of the whole set of constant resistance suspension roof beam, which effectively reduces the support cost. The shears are not easily damaged in complex environments.
Description
Technical Field
The utility model belongs to the technical field of ground anchor and engineering are strutted, concretely relates to permanent resistance that can multiplex suspends back timber in midair.
Background
With the increasingly complex underground coal mine mining conditions, roadway surrounding rocks often show irresistible large deformation characteristics under difficult conditions, and particularly for a stoping roadway affected by severe mining, secondary support needs to be carried out within a certain range in front of a working face to guarantee safe production. Although the commonly used single hydraulic prop can play a better maintenance role, the single hydraulic prop not only occupies a large amount of roadway space, but also consumes a large amount of manpower, and the effective operation of production operation is seriously influenced; in addition, although the conventional anchor cable can reduce the influence of support on the roadway space, the anchor cable also has the advantages of high strength, large control range, high prestress application and the like, the extension performance and the impact resistance of the anchor cable are difficult to adapt to severe deformation of surrounding rocks. In order to solve the problems, people continuously search for new materials and structures through a large amount of practices to improve the supporting body, and obtain beneficial effects, such as constant-resistance large-deformation anchor rods, constant-resistance deformers and the like.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multiplexing constant resistance suspends back timber in midair to solve present supporting construction at least and be not convenient for retrieve and recycle, strut the higher scheduling problem of cost.
In order to achieve the above object, the present invention provides the following technical solutions:
a reusable constant resistance suspension cap, the constant resistance suspension cap comprising a recoverable cap and a constant resistance pressure-yielding device, the constant resistance pressure-yielding device being fixed to a lower portion of the recoverable cap, the recoverable cap comprising:
the box-type top beam is arranged close to the surrounding rock, a protection space is formed inside the box-type top beam, and the anchor cable penetrates through the box-type top beam and is anchored on the surrounding rock;
and the shearing device is arranged in the protective space of the box-type top beam, is sleeved at the exposed end of the anchor cable and is used for shearing the anchor cable so as to recover the constant-resistance suspension top beam.
The constant-resistance suspended top beam is preferably characterized in that the shear comprises a hydraulic cylinder, a sliding gasket and a shear head;
the movable cylinder body of the hydraulic cylinder is connected with the sliding gasket to drive the sliding gasket to move along the axial direction of the anchor cable;
the shearing head is sleeved on the anchor cable and is in sliding fit with the sliding gasket, and the sliding gasket pushes the shearing head to move radially towards the anchor cable so as to shear the anchor cable.
The constant-resistance suspended roof rail as described above, preferably, the hydraulic cylinder comprises,
the inner cylinder of the oil cylinder is sleeved on the anchor cable, and the upper end of the inner cylinder of the oil cylinder is abutted to the shearing head;
the oil cylinder outer barrel is arranged on the periphery of the oil cylinder inner barrel, the upper end of the oil cylinder outer barrel is abutted to the lower wall face of the sliding gasket, two oil cavities are formed between the oil cylinder outer barrel and the oil cylinder inner barrel, the oil quantity in the two oil cavities is changed and driven to move up and down the oil cylinder outer barrel, the sliding gasket is pushed to move, and the oil cylinder outer barrel is a movable cylinder body of the hydraulic cylinder.
According to the constant-resistance suspension top beam, preferably, the oil cylinder outer cylinder is provided with an oil inlet and an oil outlet, and the oil cylinder outer cylinder is controlled to move relative to the oil cylinder inner cylinder by connecting an oil way through the oil inlet and the oil outlet; and a blocking plug is arranged in the oil cavity so as to divide the oil cavity between the oil cylinder outer cylinder and the oil cylinder inner cylinder into two parts, and the blocking plug is positioned between the oil inlet and the oil outlet.
The constant-resistance suspended top beam as described above, preferably, the shearing head comprises two metal blocks, and the metal blocks are L-shaped;
the transverse edges of the metal blocks are mutually overlapped, holes are formed in the transverse edges of the two metal blocks, and the anchor cable penetrates through the holes;
the vertical edges of the two metal blocks are respectively in sliding fit with the two ends of the sliding gasket, and the distance between the vertical edges of the metal blocks and the inner cylinder of the oil cylinder is continuously shortened along the upward direction;
the hole is provided with grooves, when the two metal blocks are sleeved on the periphery of the anchor cable, the center of the intersection part of the coincident surfaces of the two metal blocks and the axis of the anchor cable is limited to be a central point, and the two grooves are centrosymmetric around the central point.
The constant-resistance suspended top beam is preferably formed by fixedly connecting two I-shaped steels.
The constant-resistance suspended top beam as described above, preferably, the constant-resistance yielding device comprises:
the metal pipe is sleeved on the periphery of the anchor cable, and the inner wall of the metal pipe is provided with threads;
a spring disposed within the thread;
the tapered lock is fastened on the anchor cable, the tapered lock is arranged at the pipe opening of the metal pipe, the minimum outer diameter of the tapered lock is smaller than the inner diameter of the metal pipe, and the maximum outer diameter of the tapered lock is the same as the inner diameter of the metal pipe.
In the constant-resistance suspended top beam, the thread is preferably a trapezoidal thread, and the spring is tangent to two side edges of the trapezoidal thread.
In the constant-resistance suspended top beam, preferably, a base plate is connected to the periphery of the metal pipe, the base plate is sleeved on the outer wall of the metal pipe, and the base plate and the bottom of the box-type top beam are blocked from each other so as to block the metal pipe from moving upwards.
Preferably, the sliding gasket is sleeved on the periphery of the inner cylinder of the oil cylinder, and slides along the inner cylinder of the oil cylinder in a guiding manner.
Compared with the closest prior art, the utility model provides a technical scheme has following excellent effect:
the recoverable top beam in the reusable constant-resistance suspended top beam not only plays a role of maintaining surrounding rocks of a conventional top beam, but also realizes recovery and reutilization of the whole set of constant-resistance suspended top beam, effectively reduces supporting cost, and protects the shearing device from being damaged easily in a complex environment due to a simple protection space formed by box-type top beams.
The constant-resistance yielding device arranged in the constant-resistance suspension top beam enables the anchor cable to drive the conical lockset to slide in the metal pipe when the anchor cable is subjected to a larger acting force, so that the anchor cable is prevented from being broken due to larger stress; the anchor cable is continuously yielding under constant high-strength support resistance, damage of instantaneous impact force to the cable body is effectively relieved, the yielding range of the constant-resistance yielding device can be set according to engineering conditions, and the problem that a traditional anchor cable is easy to break under the conditions of large deformation of surrounding rock and impact load is solved.
The utility model provides a constant resistance suspends back timber in midair is easy operation, convenient to use in the application, is particularly useful for the advance support in coal face both sides stoping tunnel, has solved the hydraulic prop of monomer and has strutted down occupation tunnel space betterly, consumes manpower, material resources scheduling problem, when working face rear tunnel need put the top treatment, this constant resistance suspends the back timber in midair can solve the problem that the tunnel was put the difficulty under the conventional support betterly.
Drawings
FIG. 1 is a schematic view of the installation of a reusable constant resistance suspended top beam in an embodiment of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic diagram of a recyclable header according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an L-shaped metal block in an embodiment of the present invention;
fig. 5 is a schematic structural view of a sliding gasket according to an embodiment of the present invention;
fig. 6 is a schematic structural view of the constant resistance yielding device in the embodiment of the present invention.
In the figure: 1. a constant resistance yielding device; 2. the top beam can be recycled; 3. a metal tube; 4. a spring; 5. a tapered lock; 51. a wedge block; 6. a cutter; 7. a box-shaped top beam; 8. an oil cylinder outer cylinder; 9. a sliding gasket; 10. a base plate; 11. an anchor cable; 12. surrounding rocks; 13. a thread; 14. a hole; 15. an oil inlet; 16. an oil outlet; 17. an oil cylinder inner cylinder; 18. a blocking plug; 19. a metal block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
According to the embodiment of the present invention, as shown in fig. 1-6, the present invention provides a reusable constant-resistance suspension top beam, which comprises a recoverable top beam 2 and a constant-resistance yielding device 1, wherein the recoverable top beam 2 and the constant-resistance yielding device 1 are both sleeved on the exposed end of an anchor cable 11 (i.e. the portion of the anchor cable 11 exposed from surrounding rock 12); the recoverable top beam 2 comprises a shear 6 and a box-type top beam 7; the box-type top beam 7 is tightly attached to the surrounding rock 12, the shearing device 6 is arranged in the protection space of the box-type top beam 7, the shearing device 6 is sleeved at the exposed end of the anchor cable 11, and the shearing device 6 is used for shearing the anchor cable 11 to recover the constant-resistance suspended top beam.
The shearing device 6 comprises a hydraulic cylinder, a sliding gasket 9 and a shearing head, wherein the hydraulic cylinder is used for providing shearing force for shearing the anchor cable 11; the output end of the hydraulic cylinder is connected with the sliding gasket 9 so as to drive the sliding gasket 9 to move along the axial direction of the anchor cable 11; the shearing head is sleeved on the periphery of the anchor cable 11 and is in sliding fit with the sliding gasket 9, and the sliding gasket 9 pushes the shearing head to move radially towards the anchor cable 11 so as to shear the anchor cable 11. The anchor cable 11 is cut off by the cutting head, so that the constant-resistance suspended top beam can be recycled, and the supporting cost of the roadway is reduced.
The hydraulic cylinder comprises an oil cylinder inner cylinder 17 and an oil cylinder outer cylinder 8, the oil cylinder inner cylinder 17 is sleeved on the anchor cable 11, and the upper end of the oil cylinder inner cylinder 17 is abutted to the shearing head; the cylinder outer cylinder 8 is arranged at the periphery of the cylinder inner cylinder 17, and the cylinder outer cylinder 8 is the output end of the hydraulic cylinder. An oil inlet 15 and an oil outlet 16 are arranged on the oil cylinder outer cylinder 8, an oil way is connected with the oil outlet 16 through the oil inlet 15 to control the oil cylinder outer cylinder 8 to move relative to the oil cylinder inner cylinder 17, an oil cavity is formed between the oil cylinder outer cylinder 8 and the oil cylinder inner cylinder 17, a blocking plug 18 is arranged in the oil cavity, the blocking plug 18 is located between the oil inlet 15 and the oil outlet 16, the blocking plug 18 divides the oil cavity into an upper oil cavity and a lower oil cavity, and the upper oil cavity and the lower oil cavity are driven to move up and down through. The hydraulic cylinder is simple in structure, can provide large pressure, and is convenient for shearing the head to shear the anchor cable 11.
The sliding gasket 9 is sleeved on the periphery of the oil cylinder inner cylinder 17, and the sliding gasket 9 slides along the guide of the oil cylinder inner cylinder 17, so that the sliding of the sliding gasket 9 is more stable, and the stable shearing of the shearing head is further ensured.
The shearing head comprises two metal blocks 19, the metal blocks 19 are of L-shaped structures, and the L-shaped metal blocks 19 comprise transverse edges and vertical edges; the transverse edges of the two metal blocks 19 are mutually overlapped, the transverse edges of the metal blocks 19 are provided with holes 14, and the anchor cable 11 passes through the holes 14; the hole 14 is provided with a bevel, i.e. a relatively thin edge (relatively sharp edge) is formed on the metal block 19, so as to facilitate cutting of the anchor cable 11. As shown in fig. 3, when the two metal blocks 19 are sleeved on the periphery of the anchor cable 11, the center of the intersection of the overlapping surface of the transverse edges of the two metal blocks 19 and the axis of the anchor cable 11 is defined as a central point, and the grooves on the two holes 14 are centrosymmetric around the central point, that is, the two grooves form two sharp edges which are oppositely arranged, and two sharp edges similar to scissors are oppositely arranged, so that the anchor cable 11 is easier to cut.
The vertical edges of the two metal blocks 19 are in sliding fit with the two ends of the sliding gasket 9 respectively, the vertical edges of the metal blocks and the distance between the inner cylinders of the oil cylinders are shortened along the upward direction continuously, namely, an included angle is formed between the vertical edge of the metal block 19 and the sliding surface between the sliding gasket 9 and the axial direction of the anchor cable 11, the included angle is an acute angle, namely, the contact surface between the sliding gasket 9 and the vertical edge of the metal block 19 is an inclined plane, the sliding gasket 9 moves upwards in the axial direction, the two metal blocks 19 are pushed to move outwards along the radial opposite direction, and accordingly shearing force for shearing the anchor cable 11 is provided.
The box-shaped top beam 7 is made of I-shaped steel, preferably, the box-shaped top beam 7 is formed by welding two pieces of I-shaped steel with the same type, and the shearing device 6 is arranged in a protection space of the I-shaped steel, so that the shearing device 6 is completely protected by the I-shaped steel.
The constant-resistance yielding device 1 is fixed on the lower portion of the recoverable top beam 2 and is confined at the exposed end of the anchor cable 11, the constant-resistance yielding device 1 comprises a metal pipe 3, a spring 4 and a tapered lock 5, the metal pipe 3 is sleeved on the periphery of the anchor cable 11, threads 13 are arranged on the inner wall of the metal pipe 3, the threads 13 are trapezoidal threads 13, and the side length of the inner bottom of each trapezoidal thread 13 is relatively small. The spring 4 is arranged in the thread 13, and the spring 4 is tangent to two trapezoidal side edges of the thread 13; the tapered lock 5 is arranged on the anchor cable 11, the tapered lock 5 is fastened at the opening of the metal pipe 3, the minimum inner diameter of the tapered lock 5 is smaller than the inner diameter of the metal pipe 3, and the maximum inner diameter of the tapered lock 5 is the same as the inner diameter of the metal pipe 3. Be provided with wedge 51 between tapered lock 5 and anchor rope 11, the wedge tip portion of wedge 51 is up, drives tapered lock 5 upward movement at anchor rope 11, and under the effect of wedge 51, tapered lock 5 fastens more on anchor rope 11, has guaranteed that tapered lock 5 firmly fixes on anchor rope 11.
When the surrounding rock 12 deforms and applies large stress to the anchor cable 11, the anchor cable 11 can drive the conical lock 5 to move inside the metal pipe 3, continuous yielding of the anchor cable 11 under constant high-strength supporting resistance is achieved, and damage and fracture of the anchor cable 11 due to the large stress are avoided.
The cylinder inner cylinder 17 and the metal pipe 3 in the hydraulic cylinder are of an integrated structure, so that the whole metal pipe 3 is better in integrity and higher in structural strength, and structural components in the whole constant-resistance suspension top beam are reduced. In other embodiments, the cylinder inner barrel 17 and the metal pipe 3 can be detachably connected together through threads (as shown in fig. 2 and 3), and the detachable connection facilitates the installation and detachment of the constant-resistance suspended top beam. The periphery of the metal pipe 3 is provided with a base plate 10, the base plate 10 can be connected to the outer wall of the metal pipe 3 through threads, the base plate 10 and the bottom of the box-type top beam 7 are in blocking fit with each other, when the anchor cable 11 drives the tapered lock 5 to move upwards, friction force cannot drive the metal pipe 3 and the cylinder inner cylinder 17 fixed together to extrude the metal block 19 upwards due to blocking between the base plate 10 and the box-type top beam 7, and it is ensured that the two metal blocks 19 cannot bear large static friction force, so that the metal block 19 can be displaced relatively to shear the anchor cable 11.
Preferably, a spring is further arranged between the cylinder inner cylinder 8 and the anchor cable 11, the inner diameter of the cylinder inner cylinder 8 is equal to the inner diameter of the metal pipe 3, a trapezoidal thread is arranged on the inner diameter of the cylinder inner cylinder 8, and a spring 4 is arranged in the trapezoidal thread, namely the spring 4 penetrates into the cylinder inner cylinder 8 from the metal pipe 3. The spring is arranged in the oil cylinder inner cylinder 8, so that the length of the spring in the metal pipe 3 can extend into the oil cylinder inner cylinder 8, the tapered lock 5 can slide into the oil cylinder inner cylinder 8, the sliding stroke of the tapered lock 5 in the metal pipe 3 and the oil cylinder inner cylinder 8 is increased, and the anchor cable 11 can adapt to surrounding rock deformation in a large range.
When the constant-resistance suspended top beam is used, firstly, an anchor cable 11 is punched in a roadway and installed, after an anchoring agent is solidified, the recoverable top beam 2 and the constant-resistance yielding device 1 sequentially penetrate through the exposed end of the anchor cable 11, the recoverable top beam 2 is tightly attached to the surrounding rock 12, and the tapered lock 5 is locked at the bottom of the constant-resistance yielding device 1. When the surrounding rock 12 deforms, the surrounding rock 12 deforms to drive the anchor cable 11 to displace, the anchor cable 11 drives the conical lock 5 to move, the conical lock 5 firstly extrudes the spring 4, when the anchor cable 11 deforms to a certain value, the spring 4 is completely extruded into the thread 13, and at the moment, the anchor cable 11 drives the conical lock 5 to slide in the metal pipe 3; the anchor cable 11 is prevented from being damaged and broken due to large stress, so that the pressure of the surrounding rock 12 is released and the anchor cable 11 is supported with constant resistance.
When the constant-resistance suspension top beam is recovered, an oil conveying pipe is connected to an oil inlet 15 at the upper part of the oil cylinder outer cylinder 8, hydraulic oil is input, an oil outlet pipe is connected to an oil outlet 16 at the lower part of the oil cylinder outer cylinder 8, and hydraulic oil is extruded; the oil cylinder outer cylinder 8 moves upwards relative to the oil cylinder inner cylinder 17, the oil cylinder outer cylinder 8 pushes the sliding gasket 9 to move upwards along the axial direction of the anchor cable 11, the sliding gasket 9 pushes the metal block 19 to move outwards along the radial direction of the anchor cable 11, the metal block 19 cuts the anchor cable 11, when the shearing force exceeds the limit strength of the anchor cable 11, the anchor cable 11 is sheared, the constant-resistance suspension top beam and the anchor cable 11 are separated from each other, and therefore the whole constant-resistance suspension top beam is recycled and reused.
To sum up, the utility model provides a recoverable back timber in the constant resistance suspends back timber in midair has not only played the effect that conventional back timber maintained the country rock, has realized moreover that a whole set of constant resistance suspends the recovery and recycle of back timber in midair, has effectively reduced the cost of strutting, and the simple and easy guard space of box back timber constitution has protected the ware of cutting to be difficult for being damaged under the complex environment.
The utility model provides a constant resistance suspends back timber in midair is easy operation, convenient to use in the application, is particularly useful for the advance support in coal face both sides stoping tunnel, has solved the hydraulic prop of monomer and has strutted down occupation tunnel space betterly, consumes manpower, material resources scheduling problem, when working face rear tunnel need put the top treatment, this constant resistance suspends the back timber in midair can solve the problem that the tunnel was put the difficulty under the conventional support betterly.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the following claims are intended to cover all modifications, equivalents, and improvements falling within the spirit and principles of the present invention.
Claims (10)
1. The utility model provides a recoverable top beam that suspends in midair of constant resistance which can multiplex, its characterized in that, the constant resistance suspends in midair top beam and includes recoverable top beam and the constant resistance lets pressure device, the constant resistance lets pressure device be fixed in recoverable top beam lower part, recoverable top beam includes:
the box-type top beam is arranged close to the surrounding rock, a protection space is formed inside the box-type top beam, and the anchor cable penetrates through the box-type top beam and is anchored on the surrounding rock;
and the shearing device is arranged in the protective space of the box-type top beam, is sleeved at the exposed end of the anchor cable and is used for shearing the anchor cable so as to recover the constant-resistance suspension top beam.
2. The reusable constant-resistance suspended ceiling beam as claimed in claim 1, wherein the shear comprises a hydraulic cylinder, a sliding pad and a shear head;
the movable cylinder body of the hydraulic cylinder is connected with the sliding gasket to drive the sliding gasket to move along the axial direction of the anchor cable;
the shearing head is sleeved on the anchor cable and is in sliding fit with the sliding gasket, and the sliding gasket pushes the shearing head to move radially towards the anchor cable so as to shear the anchor cable.
3. The reusable constant-resistance suspended ceiling beam of claim 2, wherein said hydraulic cylinder comprises,
the inner cylinder of the oil cylinder is sleeved on the anchor cable, and the upper end of the inner cylinder of the oil cylinder is abutted to the shearing head;
the oil cylinder outer barrel is arranged on the periphery of the oil cylinder inner barrel, the upper end of the oil cylinder outer barrel is abutted to the lower wall face of the sliding gasket, two oil cavities are formed between the oil cylinder outer barrel and the oil cylinder inner barrel, the oil quantity in the two oil cavities is changed and driven to move up and down the oil cylinder outer barrel, the sliding gasket is pushed to move, and the oil cylinder outer barrel is a movable cylinder body of the hydraulic cylinder.
4. The reusable constant-resistance suspension top beam as claimed in claim 3, wherein the cylinder outer barrel is provided with an oil inlet and an oil outlet, and an oil path is connected with the oil inlet and the oil outlet to control the cylinder outer barrel to move relative to the cylinder inner barrel;
and a blocking plug is arranged in the oil cavity so as to divide the oil cavity between the oil cylinder outer cylinder and the oil cylinder inner cylinder into two parts, and the blocking plug is positioned between the oil inlet and the oil outlet.
5. The reusable constant-resistance suspended ceiling beam as claimed in claim 3,
the shearing head comprises two metal blocks, and the metal blocks are L-shaped;
the transverse edges of the metal blocks are mutually overlapped, holes are formed in the transverse edges of the two metal blocks, and the anchor cable penetrates through the holes;
the vertical edges of the two metal blocks are respectively in sliding fit with the two ends of the sliding gasket, and the distance between the vertical edges of the metal blocks and the inner cylinder of the oil cylinder is continuously shortened along the upward direction;
the hole is provided with grooves, when the two metal blocks are sleeved on the periphery of the anchor cable, the center of the intersection part of the coincident surfaces of the two metal blocks and the axis of the anchor cable is limited to be a central point, and the two grooves are centrosymmetric around the central point.
6. The reusable constant-resistance suspended ceiling beam as claimed in any one of claims 1 to 5, wherein said box-type ceiling beam is formed by fixedly connecting two I-beams.
7. The reusable constant resistance suspended ceiling beam as claimed in claim 3, wherein said constant resistance yielding means comprises:
the metal pipe is sleeved on the periphery of the anchor cable, and the inner wall of the metal pipe is provided with threads;
a spring disposed within the thread;
the tapered lock is fastened on the anchor cable, the tapered lock is arranged at the pipe opening of the metal pipe, the minimum outer diameter of the tapered lock is smaller than the inner diameter of the metal pipe, and the maximum outer diameter of the tapered lock is the same as the inner diameter of the metal pipe.
8. The reusable constant-resistance suspended ceiling beam as claimed in claim 7, wherein said thread is a trapezoidal thread, and said spring is tangential to both sides of said trapezoidal thread.
9. The reusable constant-resistance suspended top beam as claimed in claim 7, wherein a base plate is connected to the periphery of the metal pipe, the base plate is sleeved on the outer wall of the metal pipe, and the base plate and the bottom of the box-type top beam are blocked from each other so as to block the metal pipe from moving upwards.
10. The reusable constant-resistance suspended top beam as claimed in claim 3, wherein the sliding gasket is sleeved on the periphery of the cylinder inner cylinder, and the sliding gasket slides along the cylinder inner cylinder in a guiding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022474143.XU CN213510672U (en) | 2020-10-30 | 2020-10-30 | Reusable constant-resistance suspension top beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022474143.XU CN213510672U (en) | 2020-10-30 | 2020-10-30 | Reusable constant-resistance suspension top beam |
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| CN213510672U true CN213510672U (en) | 2021-06-22 |
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| CN202022474143.XU Expired - Fee Related CN213510672U (en) | 2020-10-30 | 2020-10-30 | Reusable constant-resistance suspension top beam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228128A (en) * | 2020-10-30 | 2021-01-15 | 华北科技学院 | A reusable constant resistance suspended ceiling beam |
| CN114215174A (en) * | 2021-11-11 | 2022-03-22 | 中国矿业大学(北京) | Constant-resistance large-deformation anchoring device suitable for building structure earthquake-resistant node |
-
2020
- 2020-10-30 CN CN202022474143.XU patent/CN213510672U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228128A (en) * | 2020-10-30 | 2021-01-15 | 华北科技学院 | A reusable constant resistance suspended ceiling beam |
| CN112228128B (en) * | 2020-10-30 | 2025-04-25 | 华北科技学院 | A reusable constant resistance suspension top beam |
| CN114215174A (en) * | 2021-11-11 | 2022-03-22 | 中国矿业大学(北京) | Constant-resistance large-deformation anchoring device suitable for building structure earthquake-resistant node |
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Granted publication date: 20210622 Termination date: 20211030 |