Multi-way linkage reversing valve for underground tunnel full-hydraulic drilling rig

Abstract

The utility model relates to the technical field of hydraulic control valves, and discloses a multi-way linkage reversing valve for an underground tunnel full-hydraulic drilling machine, which comprises a valve body, and the valve body consists of an oil inlet valve body, a rotary valve plate, a reversing valve plate, a propelling valve plate, a drilling-up valve plate, a drilling-down valve plate and a linkage valve plate. According to the device, the rotary valve plate, the linkage valve plate and the propelling valve plate are jointly formed and are communicated with one another through oil paths, so that composite linkage control among the rotary mechanism, the propelling oil cylinder, the hydraulic chuck and the hydraulic clamp holder is realized. By means of the innovative design, the labor intensity of operators is remarkably reduced, the working efficiency is improved, the problem that the size of the multiple reversing valves in a traditional underground drill rig is too large is effectively solved, and the practicability and reliability of equipment are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic control valves, in particular to a multi-way linkage reversing valve for a fully hydraulic underground roadway drill rig. Background Technique

[0002] The fully hydraulic roadway drill rig, as a key equipment for underground coal mine construction, is mainly used for gas drainage, grouting fire extinguishing hole construction and coal seam water injection hole operation. Its structure usually includes a power source hydraulic pump, a control part (i.e., a compound linkage combined multi-way reversing valve), and an actuator, and the latter is mainly composed of an oil cylinder and a hydraulic motor.

[0003] However, there are limitations in the operation of components such as the multi-way reversing valve, rotary mechanism, propulsion oil cylinder, hydraulic chuck and hydraulic gripper used in the current roadway drill rig, that is, only independent control can be achieved between these components, and compound linkage cannot be achieved. This design not only results in a large volume of the equipment, but also increases the operation stations, thus reducing the work efficiency.

[0004] Therefore, based on the above technical problems, it is necessary for those skilled in the art to develop a multi-way linkage reversing valve for a fully hydraulic underground roadway drill rig. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multi-way linkage reversing valve for a fully hydraulic underground roadway drill rig to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A technical solution of a multi-way linkage reversing valve for a fully hydraulic underground roadway drill rig, including a valve body, the valve body is composed of an oil inlet valve body, a rotary valve plate, a reversing valve plate, a propulsion valve plate, a drilling and lowering valve plate and a linkage valve plate, an overflow valve is arranged in the valve body, and the overflow valve is connected to a rotary mechanism through a three-position four-way reversing valve I, the rotary mechanism is connected to a sequence valve II through a shuttle valve II, the sequence valve II is connected to a propulsion oil cylinder, a check valve I, a small auxiliary pump overflow valve, a sequence valve I and a forward and reverse speed regulating valve are sequentially communicated below the three-position four-way reversing valve I, a three-position four-way reversing valve II is arranged on an adjacent side of the three-position four-way reversing valve I, a three-position four-way reversing valve III is arranged on an adjacent side of the three-position four-way reversing valve II, and a shuttle valve I, a positioning rotary valve I, a throttle valve, a positioning rotary valve II and a return oil throttle valve are sequentially communicated, a check valve II is installed on the return oil throttle valve, both ends of the check valve II are respectively connected to a pressure reducing valve and a hydraulic chuck, the pressure reducing valve is communicated with an anti-slip valve, and a hydraulic gripper is connected to the anti-slip valve, and the three-position four-way reversing valve III is communicated with the sequence valve II.

[0008] As a preferred technical solution, the overflow valve is communicated with the oil inlet valve body.

[0009] As a preferred technical solution, the oil inlet valve body, the rotary valve plate, the reversing valve plate, the propulsion valve plate, the drilling and tripping valve plate, and the linkage valve plate are assembled and connected by bolts.

[0010] As a preferred technical solution, the valve bodies are all interconnected through oil circuits.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] (1) The present utility model is a multi-way linkage reversing valve for an underground tunnel full-hydraulic drill. It is composed of a rotary valve plate, a linkage valve plate, and a propulsion valve plate in combination. The three valve blocks are connected through oil circuits, enabling compound linkage control among the rotary mechanism, the propulsion cylinder, the hydraulic chuck, and the hydraulic gripper. This reduces labor intensity, improves work efficiency, and overcomes the problem of the excessive volume of multi-way reversing valves in previous tunnel drills.

[0013] (2) The present utility model is a multi-way linkage reversing valve for an underground tunnel full-hydraulic drill. It is provided with a three-position four-way reversing valve one, a three-position four-way reversing valve two, and a three-position four-way reversing valve three. Through its flexible control, the entire hydraulic system can achieve a variety of different working states and operation modes, thus meeting the requirements of the underground tunnel full-hydraulic drill under different working conditions. At the same time, the design of the three-position four-way reversing valve enables the switching of the oil circuit to be more rapid and accurate during the reversing process, thereby ensuring the continuity and stability of the drill's operation. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of a multi-way linkage reversing valve for an underground tunnel full-hydraulic drill;

[0015] Figure 2 It is a schematic diagram of the principle structure of a multi-way linkage reversing valve for an underground tunnel full-hydraulic drill.

[0016] In the reference numerals of the drawings: 1. overflow valve; 2. three-position four-way reversing valve one; 3. check valve one; 4. small auxiliary pump overflow valve; 5. sequence valve one; 6. forward and reverse speed control valve; 7. three-position four-way reversing valve two; 8. three-position four-way reversing valve three; 9. shuttle valve one; 10. positioning rotary valve one; 11. throttle valve; 12. positioning rotary valve two; 13. return oil throttle valve; 14. check valve two; 15. pressure reducing valve; 16. hydraulic chuck; 17. hydraulic gripper; 18. anti-slip valve; 19. sequence valve two; 20. propulsion cylinder; 21. shuttle valve two; 22. rotary mechanism; 23. oil inlet valve body; 24. rotary valve plate; 25. reversing valve plate; 26. propulsion valve plate; 27. drilling and tripping valve plate; 28. linkage valve plate. Detailed Embodiments

[0017] The features and exemplary embodiments of various aspects of the present utility model will be described in detail below. In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. For those skilled in the art, the present utility model can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present utility model by showing examples of the present utility model.

[0018] As Figure 1 , Figure 2 shown, the present utility model provides a technical solution for a multi-way linkage reversing valve for an underground tunnel full-hydraulic drill: including a valve body, the valve body is composed of an oil inlet valve body 23, a rotary valve plate 24, a reversing valve plate 25, a propulsion valve plate 26, a drilling and lowering valve plate 27 and a linkage valve plate 28. The oil inlet valve body 23, the rotary valve plate 24, the reversing valve plate 25, the propulsion valve plate 26, the drilling and lowering valve plate 27 and the linkage valve plate 28 are assembled and connected by bolts. An overflow valve 1 is arranged in the valve body. The overflow valve 1 is communicated with the oil inlet valve body 23, and the overflow valve 1 is connected with a rotary mechanism 22 through a three-position four-way reversing valve 1 2. The rotary mechanism 22 is connected with a sequence valve 2 19 through a shuttle valve 21. The sequence valve 2 19 is connected with a propulsion oil cylinder 20. A check valve 1 3, a small auxiliary pump overflow valve 4, a sequence valve 1 5 and a forward and reverse speed regulating valve 6 are sequentially communicated below the three-position four-way reversing valve 1 2. A three-position four-way reversing valve 2 7 is arranged on one adjacent side of the three-position four-way reversing valve 1 2. A three-position four-way reversing valve 3 8 is arranged on one adjacent side of the three-position four-way reversing valve 2 7, and is sequentially communicated with a shuttle valve 1 9, a positioning rotary valve 1 10, a throttle valve 11, a positioning rotary valve 2 12 and a return oil throttle valve 13. A check valve 2 14 is installed on the return oil throttle valve 13. Both ends of the check valve 2 14 are respectively connected with a pressure reducing valve 15 and a hydraulic chuck 16. The pressure reducing valve 15 is communicated with an anti-slip valve 18, and the anti-slip valve 18 is connected with a hydraulic gripper 17. The three-position four-way reversing valve 3 8 is communicated with the sequence valve 2 19, and the valve bodies are all communicated with each other through oil circuits.

[0019] The internal oil circuit of the valve body is designed finely, and each valve plate bears a specific hydraulic control function. The oil inlet valve body 23, as the starting point of the whole system, is responsible for distributing the power oil provided by the hydraulic pump to each working area. The rotary valve plate 24 controls the movement of the rotary mechanism, and realizes the smooth rotation of the rotary mechanism during drilling by precisely adjusting the oil circuit. The reversing valve plate 25 controls the reversing action, enabling the drill to operate flexibly in different directions.

[0020] The advancing valve plate 26 is a key component for controlling the advancing oil cylinder 20. By adjusting the on-off and flow rate of the oil circuit, it achieves precise control of the advancing oil cylinder, thereby ensuring the stability and efficiency of the drill rig during the drilling process. The hoisting and lowering valve plate 27 controls the hoisting and lowering operations of the drill rig, enabling the drill rig to conveniently replace the drill bit and adjust the drilling depth.

[0021] The linkage valve plate 28 is one of the core innovations of the present utility model. Through a complex oil circuit design, it organically combines the hydraulic control systems of components such as the rotary mechanism, the advancing oil cylinder, the hydraulic chuck 16, and the hydraulic gripper 17. When the operator issues an instruction through the joystick or the electric control system, the linkage valve plate can respond quickly and achieve compound linkage control among the components through precise oil circuit control, thereby greatly improving the working efficiency and operation quality of the drill rig.

[0022] In a specific embodiment, a plurality of three-position four-way directional control valves (2, 7, 8) and check valves (1, 14) are provided, which can achieve rapid switching and precise control of the oil circuit, enabling the drill rig to quickly respond and make adjustments in different working states. The check valve is used to prevent the reverse flow of oil, ensuring the stability and safety of the hydraulic system.

[0023] In addition, the present utility model also provides a plurality of positioning rotary valves (10, 12) and throttle valves 11. These components are used to precisely adjust and control the flow rate and pressure of the hydraulic system. By adjusting the parameters of these components, precise control of the working state of the drill rig can be achieved, thereby ensuring that the drill rig can work efficiently and stably in a complex and changeable downhole environment.

[0024] In summary, the technical solution of the multi-way linkage directional control valve for the fully hydraulic drill rig in underground tunnels provided by the present utility model has the advantages of compact structure, powerful functions, and simple operation. Through the compound linkage control design, the coordinated cooperation and efficient operation among the components of the drill rig are realized, improving the working efficiency and operation quality of the drill rig. At the same time, this technical solution also has good adaptability and scalability and can be widely applied to various fully hydraulic drill rigs in underground tunnels.

[0025] The working principle and usage process of the present utility model: After assembling the components of this solution in sequence, work according to the above-mentioned various embodiments in sequence according to actual needs, and that is all the working steps.

[0026] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "set", "connected", "fixed", "swivelly connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] According to the embodiments of the present utility model as described above, these embodiments do not elaborate on all details, nor do they limit the present utility model to only the specific embodiments. Obviously, based on the above description, many modifications and variations can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present utility model, so that those skilled in the relevant technical field can make good use of the present utility model and its modified use based on the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A multi-way linkage reversing valve for a fully hydraulic drilling rig in an underground tunnel, characterized in that: The invention comprises a valve body, wherein the valve body is composed of an oil inlet valve body (23), a rotary valve plate (24), a reversing valve plate (25), a propulsion valve plate (26), a drilling and lowering valve plate (27) and a linkage valve plate (28). A relief valve (1) is arranged in the valve body, and the relief valve (1) is connected to a rotary mechanism (22) through a three-position four-way reversing valve (2). The rotary mechanism (22) is connected to a sequence valve (19) through a shuttle valve (21). The sequence valve (19) is connected to a propulsion oil cylinder (20). A check valve (3), a small auxiliary pump relief valve (4), a sequence valve (5) and an advance and retreat speed regulating valve (6) are arranged below the three-position four-way reversing valve (2). The three-position four-way reversing valve (2) is connected to a rotary mechanism (22) through a shuttle valve (21). The sequence valve (19) is connected to a propulsion oil cylinder (20). A three-position four-way reversing valve (2) (7) is arranged on one side adjacent to the valve (2), and a three-position four-way reversing valve (3) (8) is arranged on one side adjacent to the three-position four-way reversing valve (2) (7), and is sequentially connected with a shuttle valve (9), a positioning rotary valve (10), a throttle valve (11), a positioning rotary valve (2) (12) and an oil return throttle valve (13). A check valve (2) (14) is installed on the oil return throttle valve (13), and both ends of the check valve (2) (14) are respectively connected with a pressure reducing valve (15) and a hydraulic chuck (16), and the pressure reducing valve (15) is connected with an anti-slip valve (18), and the anti-slip valve (18) is connected with a hydraulic clamp (17), and the three-position four-way reversing valve (3) (8) is connected with a sequence valve (2) (19).

2. The multi-way linkage reversing valve for a fully hydraulic drilling rig for an underground tunnel according to claim 1, characterized in that: The overflow valve (1) is in communication with the oil inlet valve body (23).

3. The multi-way linkage reversing valve for an underground tunnel full hydraulic drilling rig according to claim 2 is characterized in that: The oil inlet valve body (23), the rotary valve plate (24), the reversing valve plate (25), the propulsion valve plate (26), the drilling and lowering valve plate (27) and the linkage valve plate (28) are assembled and connected by bolts.

4. The multi-way linkage reversing valve for an underground tunnel full hydraulic drilling rig according to claim 3 is characterized in that: The valve bodies are interconnected through oil passages.

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