Roadway surrounding rock supporting equipment with adjustable supporting force

Abstract

The utility model relates to the technical field of roadway supporting, in particular to roadway surrounding rock supporting equipment with adjustable supporting force, which comprises a main supporting beam and an auxiliary supporting beam, the main supporting beam is fixedly connected with the auxiliary supporting beam, and a protective net is arranged between the main supporting beam and the auxiliary supporting beam. A plurality of anchor rods are fixedly installed on the outer side of the outer wall of the main supporting beam through bolts, and symmetrically-distributed adjusting assemblies are arranged on the inner side of the outer wall of the main supporting beam. According to the roadway surrounding rock supporting equipment capable of adjusting the supporting force, through cooperative use of the main supporting beams, the auxiliary supporting beams, the anchor rods, the protective net, the anchor rods and the adjusting assemblies, the supporting force can be adjusted in real time according to the actual deformation condition and stress state of roadway surrounding rock, the supporting effect is guaranteed, and meanwhile the supporting effect is improved. The problems caused by too large or too small supporting force are avoided, and the safety and stability of the roadway are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to roadway support technical field, concretely is a kind of adjustable roadway surrounding rock support equipment. BACKGROUND

[0002] In underground engineering such as mine exploitation, tunnel construction, the stability of roadway surrounding rock is the key factor to guarantee construction safety and subsequent operation. The existing roadway surrounding rock support equipment is mostly traditional fixed structure, its supporting force is determined when installing, it is difficult to flexibly adjust according to the actual stress condition and deformation degree of roadway surrounding rock in different stages

[0003] With the use of roadway, surrounding rock stress distribution can dynamically change due to various factors, such as the rise and fall of underground water level, the influence of surrounding mining activities, etc. When the stress of surrounding rock increases, the fixed support equipment may not be able to provide sufficient support, resulting in cracks, peeling and even collapse of surrounding rock, which seriously threatens the safety of personnel and equipment; while the stress of surrounding rock is small, the fixed larger support force will cause waste of materials and increase of cost.

[0004] Therefore, it is necessary to provide a roadway surrounding rock support equipment with adjustable supporting force to solve the above technical problems. SUMMARY

[0005] The utility model aims at providing a roadway surrounding rock support equipment with adjustable supporting force to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A roadway surrounding rock support equipment with adjustable supporting force comprises:

[0008] Main support beam and vice support beam, the main support beam and vice support beam are fixedly connected, the main support beam and vice support beam are provided with protective net between, the outer side of the outer wall of the main support beam is fixedly installed with a plurality of anchor rods through bolt, the inner side of the outer wall of the main support beam is provided with symmetrically distributed adjusting assembly, a plurality of annular grooves are formed on the outer wall of the anchor rod.

[0009] Preferably, the adjusting assembly comprises a base, a circular box is fixedly installed on the top of the base, a support column is slidingly inserted into the top of the circular box, a lifting plate is fixedly installed on the bottom end of the support column, a hydraulic telescopic rod is fixedly installed on the bottom of the circular box, and the driving end of the hydraulic telescopic rod is fixedly connected with the bottom of the lifting plate, an adapter platform is arranged on the top end of the support column, a connecting piece is fixedly installed on the top of the adapter platform, and the connecting piece is fixedly connected with the inner side of the outer wall of the main support beam, a pressure sensor is arranged at the connecting position of the connecting piece and the main support beam.

[0010] Preferably, the bottom of the connecting table is provided with a connecting groove, the top of the supporting column is fixedly provided with a connecting column, and the connecting column is clamped with the connecting groove.

[0011] Preferably, the two sides of the circular box body are fixedly provided with limiting rods, the lifting plate is provided with sliding holes matched with the limiting rods, and the lifting plate is slidably connected with the limiting rods through the sliding holes.

[0012] Preferably, the outer side of the top of the base is provided with a plurality of metal expansion anchor bolts.

[0013] Preferably, the top of the circular box body is fixedly provided with a sealing sliding sleeve, and the sealing sliding sleeve is slidably connected with the supporting column.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The utility model discloses a main supporting beam, a vice supporting beam, an anchor rod, a protective net, the cooperation of the adjusting assembly, can according to the deformation condition and stress state of actual roadway surrounding rock real -time adjustment support force's size, guarantee the supporting effect, avoid the problem that the support force is too big or too small at the same time, improve the security and stability of roadway.

[0016] 2. The utility model discloses the cooperation of connecting column and connecting groove, realized the quick disassembly between supporting column and connecting table, and this quick disassembly's characteristic greatly improved the work efficiency of adjusting assembly local overhauling maintenance, reduced the equipment downtime, reduced maintenance cost, effectively guaranteed the sustained and stable operation of roadway surrounding rock support equipment. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model;

[0018] Figure 2 It is the front view sectional structure schematic diagram of the utility model;

[0019] Figure 3 It is the sectional structure schematic diagram of the circular box body in the utility model;

[0020] Figure 4 It is the Figure 2 enlarged structure schematic diagram of the utility model in A place.

[0021] In the drawing: 1, main supporting beam;2, vice supporting beam;3, protective net;4, anchor rod;5, adjusting assembly;6, connecting piece;7, supporting column;8, circular box body;9, base;10, connecting table;11, sealing sliding sleeve;12, limiting rod;13, lifting plate;14, metal expansion anchor bolt;15, hydraulic telescopic rod;16, connecting column;17, connecting groove;18, pressure sensor. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model will be further described below in combination with specific embodiments.

[0023] In the description of the utility model, it should be pointed out that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled persons in the art without creative labor belong to the scope of protection of the utility model.

[0026] Please refer to Figures 1-4 The utility model provides an embodiment:

[0027] A roadway surrounding rock supporting device with adjustable supporting force comprises:

[0028] The main supporting beam 1 and the auxiliary supporting beam 2 are fixedly connected, the protective net 3 is arranged between the main supporting beam 1 and the auxiliary supporting beam 2, a plurality of anchor rods 4 are fixedly installed on the outer side of the outer wall of the main supporting beam 1 through bolts, the adjusting assembly 5 is symmetrically arranged on the inner side of the outer wall of the main supporting beam 1, a plurality of annular grooves are arranged on the outer wall of the anchor rod 4, the annular grooves arranged on the anchor rod 4 increase the contact area with the anchoring agent or surrounding rock, enhance the friction force and the adhesive force between the anchor rod 4 and the surrounding medium, and improve the anchoring effect.

[0029] The adjusting assembly 5 comprises a base 9, a circular box 8 is fixedly installed on the top of the base 9, a support column 7 is slidingly inserted into the top of the circular box 8, a lifting plate 13 is fixedly installed at the bottom end of the support column 7, a hydraulic telescopic rod 15 is fixedly installed at the bottom of the inside of the circular box 8, and the driving end of the hydraulic telescopic rod 15 is fixedly connected with the bottom of the lifting plate 13, a connecting table 10 is arranged at the top end of the support column 7, a connecting piece 6 is fixedly installed on the top of the connecting table 10, and the connecting piece 6 is fixedly connected with the inner side of the outer wall of the main support beam 1, and a pressure sensor 18 is arranged at the connecting position of the connecting piece 6 and the main support beam 1.

[0030] In one of the embodiments, the bottom of the connecting table 10 is provided with a connecting groove 17, and the top of the support column 7 is fixedly installed with a connecting column 16 which is clamped with the connecting groove 17.

[0031] In one of the preferred embodiments, the two sides of the inside of the circular box 8 are fixedly installed with limiting rods 12, and the lifting plate 13 is provided with sliding holes which are matched with the limiting rods 12, and the lifting plate 13 is slidingly connected with the limiting rods 12 through the sliding holes, so as to guarantee the straightness of the lifting plate 13 in the lifting movement, prevent the deviation or shaking of the lifting plate 13 in the movement, and enable the support column 7 to stably perform the lifting action.

[0032] In one of the embodiments, the outer side of the top of the base 9 is provided with a plurality of metal expansion anchor bolts 14, so as to enhance the connection stability of the base 9 and the roadway ground, and guarantee the stable support of the adjusting assembly 5.

[0033] In one of the preferred embodiments, the top of the circular box 8 is fixedly installed with a sealing sliding sleeve 11, and the sealing sliding sleeve 11 is slidingly connected with the support column 7, so as to guarantee the smooth sliding of the support column 7, prevent the sundries and dust from entering the circular box 8, and improve the sealing property and stability of the equipment.

[0034] The utility model discloses a working principle is: the electric element appearing in this article is all with main control ware and power supply electric connection, and the main control ware can be the conventional known device of computer etc. and play the control, and the existing disclosure electric power connection technology, not in this article, the part not involved in the device is same with the prior art or can adopt the prior art to realize, when using the equipment, first according to the geological condition and stability evaluation result of roadway surrounding rock, using professional drilling equipment in the roadway surrounding rock and drilling the borehole that meets the design requirement, the anchor rod 4 is inserted into the borehole accurately, and adopts high -performance resin anchoring agent and is steady fixed, ensures that the anchor rod 4 and surrounding rock form firm anchoring system. Meanwhile, according to the accurate section shape and detailed size of roadway, from the various specifications and models of pre-design and manufacture, scientific selection adapts the main support beam 1 and vice support beam 2 of the main support beam 1. As the key component that directly contacts with roadway surrounding rock and bears the main support load, its design is the arc structure that is highly adapted with the roadway vault geometry shape, and this structure design can significantly improve the fitting degree of main support beam 1 and roadway surrounding rock, and then enhance the support effect, effectively disperses the surrounding rock pressure. The main support beam 1 is accurately installed in the inner wall of roadway and is positioned in the predetermined position through strict calculation, and is firmly connected with the anchor rod 4 that has been fixed through reliable connection mode, guarantees that the main support beam 1 is closely fitted with surrounding rock, realizes the effective transmission of load. As auxiliary support component, vice support beam 2 is reasonably connected with main support beam 1, further strengthens the overall stability of support structure, and optimizes the mechanical properties of support system. In order to make the protection effect of overall equipment more comprehensive and reliable, install the protective net 3 on the frame formed by main support beam 1 and vice support beam 2, the protective net 3 is made of high-strength, corrosion-resistant material, which can effectively block the falling of surrounding rock fragments and protect the safety of personnel and equipment in the roadway. Subsequently, two adjusting assemblies 5 are accurately fixed between the inner side of the outer wall of each main support beam 1 and the roadway ground, the adjusting assembly 5 is reliably anchored with the roadway ground through the metal expansion anchor bolt 14 on the base 9, ensuring that the support column 7 on the adjusting assembly 5 maintains a vertical state, to ensure the vertical transmission of support force and avoid additional lateral forces affecting the support effect. A high-precision strain pressure sensor 18 is installed between the main support beam 1 and the connecting piece 6. The pressure sensor 18 can monitor the pressure on the main support beam 1 in real time and accurately, i.e., the size of the support force, and convert the pressure signal into an electrical signal for transmission to the control system. The pressure sensor 18 is reasonably distributed at key positions of the main support beam 1 to comprehensively and accurately detect the support force of different parts of the support equipment. When the pressure sensor 18 detects that the support force is less than the pre-set safety value, the intelligent controller quickly analyzes the data and makes logical judgments, and sends accurate control instructions to start the hydraulic telescopic rod 15 on the corresponding position adjusting assembly 5. The drive end of the hydraulic telescopic rod 15 extends steadily, moving the support column 7 upwards, and through the precise cooperation of the adapter table 10 and the connecting piece 6, additional support force is applied to the main support beam 1 to meet the stability requirements of the roadway surrounding rock.Conversely, when the support force is detected to be greater than the set value, the controller also responds quickly to control the drive end of the hydraulic telescopic rod 15 to shorten, thereby reducing the support force on the main support beam 1. Through this real-time, dynamic monitoring and accurate adjustment mechanism, the support force of the support device is always kept stable within the set safe range, thereby effectively ensuring the long-term stability and safety of the surrounding rock of the roadway.

[0035] In actual operation, when local maintenance of the adjusting assembly 5 is needed, the support column 7 can be moved downward by means of the drive end of the hydraulic telescopic rod 15. Since the connecting column 16 and the connecting groove 17 are directly inserted, the downward movement of the support column 7 will make the connecting column 16 smoothly separate from the inside of the connecting groove 17 at the bottom of the connecting table 10. In this way, the quick disassembly of the support column 7 and the connecting table 10 is realized. Similarly, after the maintenance is completed, only the connecting column 16 needs to be inserted into the connecting groove 17, and the installation of the two can be quickly completed. The quick disassembly and assembly greatly improves the work efficiency of the local maintenance of the adjusting assembly 5, reduces the equipment downtime, reduces the maintenance cost, and effectively ensures the continuous and stable operation of the surrounding rock support device of the roadway.

[0036] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A roadway surrounding rock support device capable of adjusting support force, characterized by, It includes: The main support beam (1) and the auxiliary support beam (2) are fixedly connected, the main support beam (1) and the auxiliary support beam (2) are provided with a protective net (3), the outer side of the outer wall of the main support beam (1) is fixedly installed with a plurality of anchor rods (4), the inner side of the outer wall of the main support beam (1) is provided with symmetrically distributed adjusting assemblies (5), and the outer wall of the anchor rod (4) is provided with a plurality of annular grooves.

2. The adjustable support force roadway surrounding rock support device according to claim 1, characterized in that: The adjusting assembly (5) includes a base (9), the top of the base (9) is fixedly installed with a circular box (8), the top of the circular box (8) is slidably inserted with a support column (7), the bottom end of the support column (7) is fixedly installed with a lifting plate (13), the inside of the circular box (8) is fixedly installed with a hydraulic telescopic rod (15), and the driving end of the hydraulic telescopic rod (15) is fixedly connected with the bottom of the lifting plate (13), the top of the support column (7) is provided with a connecting table (10), the top of the connecting table (10) is fixedly installed with a connecting piece (6), and the connecting piece (6) is fixedly connected with the inner side of the outer wall of the main support beam (1), and the connecting piece (6) is provided with a pressure sensor (18) at the connecting position of the main support beam (1).

3. A support force adjustable roadway surrounding rock supporting device according to claim 2, characterized in that: The bottom of the connecting table (10) is provided with a connecting groove (17), the top of the support column (7) is fixedly installed with a connecting column (16), and the connecting column (16) is connected with the connecting groove (17).

4. The adjustable support force roadway surrounding rock support device according to claim 2, characterized in that: Both sides of the inside of the circular box (8) are fixedly installed with a limiting rod (12), the lifting plate (13) is provided with a sliding hole matched with the limiting rod (12), and the lifting plate (13) is slidably connected with the limiting rod (12) through the sliding hole.

5. The adjustable support force roadway surrounding rock support device according to claim 2, characterized in that: The outer side of the top of the base (9) is provided with a plurality of metal expansion anchor bolts (14).

6. The adjustable support force roadway surrounding rock support device according to claim 2, characterized in that: The top of the circular box (8) is fixedly inserted with a sealing sliding sleeve (11), and the sealing sliding sleeve (11) is slidably connected with the support column (7).

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