Hydraulic control reversing valve of mining hydraulic system
Through innovative design of the guiding and supporting components, the problem of low flow rate in mining hydraulic control directional valves has been solved, enabling rapid response and safe adaptation of mining equipment, and improving mining efficiency and safety.
Patent Information
- Application Number
- CN202520321092.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-02-27
AI Technical Summary
When the valve core switches positions, the hydraulic control directional valve used in mining cannot effectively guide the oil to pass through quickly, resulting in a slowdown in flow rate, which affects the operating efficiency of mining equipment and increases mining costs.
The design employs guide and support components. The motor drives the transmission shaft to move the wheel and piston rapidly within the guide column, and the spring reset further enhances the flow rate. The support component adjusts the valve body angle through a pin and clamping plate structure to adapt to changes in the mining environment.
It increases the flow rate of the hydraulic directional valve, shortens the action time of mining equipment, improves mining efficiency, and can quickly adjust the support angle to ensure operational safety.
Smart Images
Figure CN223814202U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of liquid control reversing valve, especially relates to the liquid control reversing valve of mine hydraulic system. BACKGROUND
[0002] The mine hydraulic system is the power transmission and control system of coal mining and other mine operations, the pressure energy of hydraulic oil is converted into mechanical energy, and various mine equipment is driven to operate. The liquid control reversing valve plays a key role, is responsible for controlling the flow direction of hydraulic oil, and then realizes the accurate control of the action of the execution element such as hydraulic cylinder, hydraulic motor, like the cutting of coal winning machine, traction, the operation of scraper conveyor, the lifting of hydraulic support, etc. The orderly development of mine exploitation work is ensured.
[0003] The liquid control reversing valve is mainly composed of a valve body, a valve core, a control piston, a spring and a sealing element. The valve body is made of high-strength alloy steel material, can withstand high pressure and harsh working conditions, and is provided with a flow channel for the flow of hydraulic oil. The valve core is the core of controlling the flow direction of oil, and has a slide valve type and a rotary valve type. The control piston receives the control oil pressure signal and drives the valve core to act. The spring is installed at one end of the valve core and is used for controlling the reset of the valve core when the pressure disappears. The sealing element is distributed at the connection between the valve body and the valve core, the control piston and the valve body, etc. to prevent hydraulic oil leakage.
[0004] When the valve core switches position, the mine liquid control reversing valve cannot effectively guide the oil to flow quickly, and the flow rate will also slow down. In addition, if the sealing element is not reasonably installed or is not properly selected, it may protrude in the flow channel and partially block the flow of oil, thereby reducing the flow rate. The low flow rate caused by these structural problems will make the action of the mine equipment become slow, such as the cutting speed of the coal winning machine being limited, the transportation efficiency of the scraper conveyor being reduced, and the working efficiency of the mine exploitation being seriously affected, and the mining cost being increased. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a liquid control reversing valve of mine hydraulic system, which aims at improving the problem of low flow rate in the prior art, which will make the action of the mine equipment become slow and affect the working efficiency of the mine exploitation.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: the liquid control reversing valve of mine hydraulic system, comprising a valve body, the valve body side wall is fixedly connected with a guide column, the guide column is internally provided with a guide assembly, and the valve body bottom is provided with a supporting assembly.
[0007] The guide assembly includes rotating plates, a plurality of the rotating plates are rotationally connected inside the guide column, a motor is fixedly connected at the top of the guide column, a transmission shaft is fixedly connected at the output end of the motor, a rotating wheel is fixedly connected at the bottom end of the transmission shaft, a plurality of push plates are fixedly connected at the outer wall of the rotating wheel, a connecting shaft is rotationally connected at the inside of the rotating plate, the connecting shaft is slidingly connected inside the guide column, a piston is fixedly connected at the other end of the connecting shaft, a spring is sleeved at the outer wall of the connecting shaft, one end of the spring is fixedly connected at the side wall of the rotating plate, the other end of the spring is fixedly connected at the outer wall of the rotating plate, and a guide plug is slidingly connected inside the guide column.
[0008] Further, the support assembly includes support plates, and a plurality of the support plates are arranged at the bottom of the valve body.
[0009] Further, a connecting plate is fixedly connected to the upper surface of the support plate, a hanging table is rotationally connected to the top of the connecting plate.
[0010] Further, a top plate is fixedly connected to the top of the hanging table, and a support frame is fixedly connected to the side wall of the top plate.
[0011] Further, a clamping table is fixedly connected to the upper surface of the support plate, and a clamping groove is formed in the inside of the clamping table.
[0012] Further, a support table is rotationally connected to the lower surface of the top plate, and a rotating table is rotationally connected to the bottom of the support table.
[0013] Further, a clamping plate is fixedly connected to the bottom of the rotating table, and the clamping plate is slidingly connected inside the clamping groove.
[0014] Further, a plurality of latches are slidingly connected inside the clamping groove.
[0015] The utility model has the advantages of the following beneficial effects:
[0016] 1. In the utility model, first, the motor drives the rotating wheel at the bottom of the transmission shaft to rotate inside the guide column, so that the piston can flow in the pipeline inside the guide column and further push the guide plug, then the spring resets, the flow rate inside the guide column is increased, the execution element responds faster, the action time is shortened, and the overall mining efficiency is improved.
[0017] 2. In the utility model, the latch slides out inside the clamping plate under stress, the locking of the clamping table is released, the hanging table at the bottom of the top plate also rotates at the top of the connecting plate, and the support angle of the support frame can be changed at this time, so that the hydraulic support can quickly adjust the support angle when faults, rock hardness changes and the like are encountered, and the operation safety is ensured. DRAWINGS
[0018] Figure 1 A perspective view of the hydraulic control reversing valve of the mine hydraulic system according to the present application is provided;
[0019] Figure 2 A schematic view of the guide column structure of the hydraulic control reversing valve of the mine hydraulic system according to the present application is provided;
[0020] Figure 3 A schematic view of the support plate structure of the hydraulic control reversing valve of the mine hydraulic system according to the present application is provided.
[0021] Legend:
[0022] 1, valve body; 2, guide column; 3, motor; 4, transmission shaft; 5, runner; 6, push plate; 7, rotating plate; 8, connecting shaft; 9, spring; 10, piston; 11, guide plug; 12, support plate; 13, connecting plate; 14, clamping table; 15, clamping groove; 16, top plate; 17, support frame; 18, hanging table; 19, support table; 20, rotating table; 21, clamping plate; 22, bolt. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0024] Reference Figures 1-2 , the present application provides an embodiment: the hydraulic control reversing valve of the mine hydraulic system, including valve body 1, the valve body 1 side wall is fixedly connected with guide column 2, guide column 2 inside is provided with guide assembly, the valve body 1 bottom is provided with support assembly;
[0025] The guide assembly includes rotating plate 7, a plurality of rotating plates 7 are rotatably connected inside the guide column 2, the top of the guide column 2 is fixedly connected with the motor 3, the output end of the motor 3 is fixedly connected with the transmission shaft 4, the bottom end of the transmission shaft 4 is fixedly connected with the runner 5, the outer wall of the runner 5 is fixedly connected with a plurality of push plates 6, the inside of the rotating plate 7 is rotatably connected with the connecting shaft 8 one end, the connecting shaft 8 is slidably connected inside the guide column 2, the other end of the connecting shaft 8 is fixedly connected with the piston 10, the outer wall of the connecting shaft 8 is sleeved with the spring 9, one end of the spring 9 is fixedly connected with the side wall of the rotating plate 7, the other end of the connecting shaft 8 is fixedly connected with the outer wall of the rotating plate 7, the guide plug 11 is slidably connected inside the guide column 2.
[0026] Specifically, when the flow rate inside the guide column 2 needs to be increased to enable it to quickly respond to the liquid guide, first start the motor 3, the motor 3 will power output to the transmission shaft 4, with the rotation of the transmission shaft 4, the runner 5 also starts to rotate inside the guide column 2, in the process of rotating the runner 5, the push plate 6 will follow the runner 5 to do the circular motion, thereby pushing the rotating plate 7, under the pushing of the push plate 6, the rotating plate 7 rotates around its own rotating shaft inside the guide column 2, the rotating plate 7 rotates and exerts a pushing force on the connecting shaft 8, after the connecting shaft 8 is stressed, it will move along its axial direction, further pushing the piston 10 connected to one end of the connecting shaft 8, under the pushing of the connecting shaft 8, the piston 10 can quickly flow in the pipeline inside the guide column 2, in the process of pushing forward, the piston 10 pushes the guide plug 11, thereby increasing the flow rate of the liquid inside the guide column 2, when completing a pushing action, the elastic force of the spring 9 makes the piston 10 and the connecting shaft 8 and other components return to the initial position, realizing the flow rate enhancement inside the guide column 2, so that the execution element associated with the guide column 2 can respond faster, greatly shortening the action time, and effectively improving the overall mining efficiency.
[0027] With reference to Figure 3 The support assembly comprises a support plate 12, a plurality of support plates 12 are arranged at the bottom of the valve body 1, the upper surface of the support plate 12 is fixedly connected with a connecting plate 13, the top of the connecting plate 13 is rotatably connected with a hanging table 18, the top of the hanging table 18 is fixedly connected with a top plate 16, the side wall of the top plate 16 is fixedly connected with a support frame 17, the upper surface of the support plate 12 is fixedly connected with a clamping table 14, the clamping table 14 is provided with a clamping groove 15 inside, the lower surface of the top plate 16 is rotatably connected with a support table 19, the bottom of the support table 19 is rotatably connected with a rotating table 20, the bottom of the rotating table 20 is fixedly connected with a clamping plate 21, the clamping plate 21 is slidably connected inside the clamping groove 15, and a plurality of latches 22 are slidably connected inside the clamping groove 15.
[0028] Specifically, when the angle of the valve body 1 needs to be adjusted, hold the latch 22 and pull it outward with force, the latch 22 slides out along the slide way inside the clamping plate 21 after being stressed, and at the same time the locking of the clamping table 14 is released, the clamping plate 21 can switch positions in the clamping groove 15 inside the clamping table 14 after the locking is released, the position of the clamping plate 21 changes, driving the support table 19 to rotate at the bottom of the top plate 16, thereby changing the inclination angle of the top plate 16, in the process of changing the angle of the top plate 16, the hanging table 18 at the bottom of the top plate 16 also rotates at the top of the connecting plate 13, in this way, the support angle of the support frame 17 changes, in the process of mining, once encountering faults, changes in rock hardness and other situations, with the aid of this structure, the hydraulic support can quickly adjust the support angle, ensuring the safety of the operation.
[0029] Working principle: the realization needs to increase the flow rate inside the guide column 2 to make it quickly respond to the liquid guide, start the motor 3, the motor 3 to the transmission shaft 4 output drive transmission shaft 4 bottom runner 5 in the guide column 2 inside rotation, at this time the runner 5 both sides of the push plate 6 can push the rotating plate 7, so that the rotating plate 7 in the guide column 2 inside rotation and push the connecting shaft 8, connecting shaft 8 after stress further push its one end of the piston 10, so that the piston 10 can flow in the guide column 2 inside the pipeline and further push the guide plug 11, then through the spring 9 reset, realize the flow rate enhancement inside the guide column 2, make the actuator faster response, shorten the action time, and further improve the overall mining efficiency, when you need to adjust the angle of the valve body 1, pull out the bolt 22, the bolt 22 after stress in the card plate 21 inside slide out, at the same time release the locking of the card table 14, so that the card plate 21 can switch position in the card groove 15 inside the card table 14, further drive the support table 19 in the top plate 16 bottom rotation change the inclination angle of the top plate 16, at the same time the top plate 16 bottom hanging platform 18 also in the connecting plate 13 top rotation, at this time the support angle of the support frame 17 can be changed, such as in the case of fault, rock hardness change, etc., can make the hydraulic support quickly adjust the support angle, guarantee the safety of operation.
[0030] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.
Claims
1. A pilot operated directional control valve for a hydraulic system for mining, comprising a valve body (1), characterised in that: The valve body (1) side wall is fixedly connected with a guide column (2), the guide column (2) is internally provided with a guide assembly, and the valve body (1) bottom is provided with a supporting assembly; The guide assembly includes a rotating plate (7), a plurality of rotating plates (7) are rotatably connected in the guide column (2), the guide column (2) top is fixedly connected with a motor (3), the motor (3) output end is fixedly connected with a transmission shaft (4), the transmission shaft (4) bottom end is fixedly connected with a rotating wheel (5), the rotating wheel (5) outer wall is fixedly connected with a plurality of push plates (6), the rotating plate (7) is rotatably connected with a connecting shaft (8) one end in the inside, the connecting shaft (8) is slidably connected in the guide column (2), the connecting shaft (8) the other end is fixedly connected with a piston (10), the connecting shaft (8) outer wall is sleeved with a spring (9), the spring (9) one end is fixedly connected in the rotating plate (7) side wall, the connecting shaft (8) the other end is fixedly connected in the rotating plate (7) outer wall, the guide column (2) inside is slidably connected with a guide plug (11).
2. The pilot operated directional control valve of a hydraulic system for a mine according to claim 1, characterized in that: The supporting assembly includes a support plate (12), and a plurality of support plates (12) are arranged on the bottom of the valve body (1).
3. The pilot operated directional control valve of a hydraulic system for mining according to claim 2, characterized in that: The support plate (12) upper surface is fixedly connected with a connecting plate (13), and the connecting plate (13) top is rotatably connected with a hanging table (18).
4. The pilot operated directional control valve of a hydraulic system for a mine according to claim 3, characterized in that: The hanging table (18) top is fixedly connected with a top plate (16), and the top plate (16) side wall is fixedly connected with a support frame (17).
5. The pilot operated directional control valve of a hydraulic system for mining according to claim 4, characterized in that: The support plate (12) upper surface is fixedly connected with a clamping table (14), and the clamping table (14) is internally provided with a clamping groove (15).
6. The pilot operated directional control valve of a hydraulic system for a mine according to claim 5, characterized in that: The top plate (16) lower surface is rotatably connected with a supporting table (19), and the supporting table (19) bottom is rotatably connected with a rotating table (20).
7. The pilot operated directional control valve of a hydraulic system for mining according to claim 6, characterized in that: The rotating table (20) bottom is fixedly connected with a clamping plate (21), and the clamping plate (21) is slidably connected in the clamping groove (15).
8. The pilot operated directional control valve of a hydraulic system for mining according to claim 7, characterized in that: The clamping plate (21) is slidably connected with a plurality of latches (22) in the inside, and the latches (22) are slidably connected in the clamping groove (15).