Explosion-proof type electro-hydraulic control box

Abstract

The utility model discloses an explosion-proof type electro-hydraulic control box which comprises an explosion-proof box, an electrical device and a hydraulic device, and the electrical device and the hydraulic device are assembled in the explosion-proof box. The explosion-proof box comprises a box body, an electrical end cover and a hydraulic end cover which are combined to form a complete explosion-proof surface for blocking and explosion prevention, a partition plate is arranged in the box body to divide the box body into an electrical cavity and a hydraulic cavity, a cable leading-in device communicated with the electrical cavity is arranged at the bottom of the explosion-proof box, and a cable is led into the explosion-proof box. One side of the explosion-proof box is provided with a hydraulic pipeline which is communicated with the hydraulic cavity and used for hydraulically controlling an oil path, and the problems that existing components are large in size and large in occupied space, cables connected between the components are large in number and long in length, and the components are distributed dispersedly are solved through the structure.

Description

Technical Field

[0001] This utility model relates to the field of electrical control technology for underground equipment in coal mines, and in particular to an explosion-proof electro-hydraulic control box. Background Technology

[0002] Currently, the automatic control of underground coal mine equipment uses a decentralized approach, with electrical control boxes, hydraulic valves, and sensors distributed throughout. These are connected to various valve groups and explosion-proof components via external cables. The components are large, occupying significant space, and the numerous, long cables connecting them hinder equipment layout and maintenance. Furthermore, the equipment lacks integration.

[0003] Therefore, there is an urgent need for an electro-hydraulic control box that can solve the problems of large component size, large space occupation, large number and length of cables connecting components, and dispersed component layout. This application provides an explosion-proof electro-hydraulic control box to overcome the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an explosion-proof electro-hydraulic control box that integrates the controller, hydraulic valve and sensor and places them in an explosion-proof box, thereby reducing the number of cables and improving the integration of the product.

[0005] To solve the above-mentioned technical problems, this utility model provides an explosion-proof electro-hydraulic control box, comprising:

[0006] An explosion-proof enclosure, electrical equipment, and hydraulic equipment, wherein the electrical equipment and hydraulic equipment are assembled inside the explosion-proof enclosure;

[0007] The explosion-proof enclosure includes a enclosure body, an electrical end cover, and a hydraulic end cover;

[0008] The enclosure, electrical end cap, and hydraulic end cap are combined to form a complete explosion-proof surface for explosion protection. The enclosure is equipped with a partition, and the enclosure is divided into an electrical cavity and a hydraulic cavity based on the partition. The bottom of the explosion-proof enclosure is equipped with a cable introduction device that is connected to the electrical cavity to introduce the cable into the explosion-proof enclosure. A hydraulic pipe is provided on one side of the explosion-proof enclosure and connected to the hydraulic cavity for hydraulic control oil circuit.

[0009] As an improvement of this utility model, the cable introduction device introduces the cable into the explosion-proof box by means of adhesive sealing.

[0010] As an improvement of this utility model, the electrical device is electrically connected to the hydraulic device, and the operation of the hydraulic device is controlled by an electrical signal;

[0011] The electrical device includes a controller and a current signal acquisition module, and the hydraulic device includes a proportional control valve and a pressure sensor;

[0012] The controller controls the proportional control valve as an actuator to check the valve core position, and the current signal acquisition module acquires the signals from the pressure sensor and the valve core position.

[0013] As an improvement of this utility model, the hydraulic device further includes:

[0014] The system includes a flow sensor, an electro-proportional relief valve, a hydraulic valve block, and a mechanical relief valve. The hydraulic valve block is connected to the proportional control valve. The pressure sensor is mounted on one end of the hydraulic valve block, and the mechanical relief valve is mounted on the proportional control valve. The electro-proportional relief valve is located at one end of the pressure sensor and is connected to the flow sensor.

[0015] As an improvement of this utility model, the flow sensor is used to detect the flow rate of hydraulic oil through the valve core of the proportional control valve.

[0016] As an improvement to this utility model, the electrical device further includes:

[0017] The device includes a tilt sensor, an electrical mounting plate, a wiring assembly, and terminal blocks. The controller is installed inside the electrical cavity and connected to the electrical mounting plate. The current signal acquisition module, tilt sensor, and terminal blocks are mounted on the electrical mounting plate.

[0018] As an improvement of this utility model, the cable guide assembly is installed on the partition to connect the electrical cavity and the hydraulic cavity, and the cable is connected to the electrical cavity and the hydraulic cavity through the cable guide assembly.

[0019] As an improvement of this utility model, the tilt sensor is used to detect the deflection angle of the explosion-proof box.

[0020] With this design, the present invention has at least the following advantages:

[0021] This explosion-proof electro-hydraulic control box integrates electrical and hydraulic devices within an explosion-proof enclosure. The enclosure comprises a body, electrical end caps, and hydraulic end caps, forming a complete explosion-proof surface for protection. Inside the enclosure, a partition separates the electrical and hydraulic chambers. A cable entry device connected to the electrical chamber is located at the bottom of the enclosure, allowing cables to be introduced into the enclosure. A hydraulic pipe on one side of the enclosure connects to the hydraulic chamber for hydraulic control. By integrating multiple components within the enclosure, the system's integration is improved, the number of cables is reduced, and a programmable electro-hydraulic integrated device is provided for intelligent equipment in coal mines. Attached Figure Description

[0022] The above is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, the following describes this utility model in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a structural schematic diagram of an explosion-proof electro-hydraulic control box according to one embodiment of the present invention.

[0024] Figure 2 This is a structural schematic diagram of the explosion-proof box of this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the box in this utility model.

[0026] Figure 4 This is a schematic diagram of the hydraulic device in this utility model.

[0027] Figure 5 This is a schematic diagram of the electrical device in this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Explosion-proof enclosure; 11. Enclosure body; 111. Hydraulic chamber; 112. Electrical chamber; 113. Hydraulic pipeline; 12. Hydraulic chamber end cap; 13. Electrical chamber end cap; 14. Cable entry device; 2. Electrical device; 21. Controller; 22. Current signal acquisition module; 23. Tilt sensor; 24. Electrical mounting plate; 25. Cable guide; 26. Terminal block; 3. Hydraulic device; 31. Proportional control valve; 32. Flow sensor; 33. Electro-proportional relief valve; 34. Pressure sensor; 35. Hydraulic valve block; 36. Mechanical relief valve. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0031] Please see Figures 1 to 5 This illustrates a specific embodiment of an explosion-proof electro-hydraulic control box.

[0032] like Figure 1As shown, in this embodiment, the explosion-proof electro-hydraulic control box includes an explosion-proof box 1, an electrical device 2, and a hydraulic device 3. The electrical device 2 and the hydraulic device 3 are assembled inside the explosion-proof box 1. The explosion-proof box 1 includes a box body 11, a hydraulic chamber end cover 12, and an electrical chamber end cover 13, which together form a complete explosion-proof surface for explosion protection. The box body 11 is provided with a partition to separate the electrical chamber 112 and the hydraulic chamber 111. The bottom of the explosion-proof box 1 is provided with a cable introduction device 14 that communicates with the electrical chamber 112 to introduce the cable into the explosion-proof box 1. A hydraulic pipe 113 is provided on one side of the explosion-proof box 1 and communicates with the hydraulic chamber 111 for hydraulic control oil circuit. By integrating multiple components into the box body 11, the system integration is improved and the number of cables is reduced, providing a programmable electro-hydraulic integrated device for intelligent equipment in coal mines.

[0033] Preferably, such as Figures 1 to 3 As shown, the cable entry device 14 uses adhesive sealing to introduce the cable into the explosion-proof box 1.

[0034] Specifically, such as Figure 4 As shown, the hydraulic device 3 includes a proportional control valve 31, a flow sensor 32, an electro-proportional relief valve 33, a pressure sensor 34, a hydraulic valve block 35, and a mechanical relief valve 36. The proportional control valve 31 is connected to the hydraulic valve block 35. The pressure sensor 34 is installed at one end of the hydraulic valve block 35, and the mechanical relief valve 36 is disposed on the proportional control valve 31. The electro-proportional relief valve 33 is disposed at one end of the pressure sensor 34 and is connected to the flow sensor 32. The proportional control valve 31 serves as an actuator for checking the displacement of the valve core, and the flow sensor 32 is used to detect the flow rate of hydraulic oil passing through the valve core of the proportional control valve 31.

[0035] Specifically, such as Figure 5 As shown, the electrical device 2 includes a controller 21, a current signal acquisition module 22, an tilt sensor 23, an electrical mounting plate 24, a wiring assembly 25, and a terminal block 26. The controller 21 is installed inside the electrical cavity 112 and connected to the electrical mounting plate 24. The current signal acquisition module 22, the tilt sensor 23, and the terminal block 26 are installed on the electrical mounting plate 24. The wiring assembly 25 is installed on the partition and connects the electrical cavity 112 and the hydraulic cavity 111. The cable is connected to the electrical cavity 112 and the hydraulic cavity 111 through the wiring assembly 25. The controller 21 is used to control the proportional control valve 31. The tilt sensor 23 is used to detect the deflection angle of the explosion-proof box 1. The current signal acquisition module 22 is used to acquire the signal from the pressure sensor 34.

[0036] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes or alterations made by those skilled in the art using the above-disclosed technical content shall fall within the protection scope of the present utility model.

Claims

1. An explosion-proof electro-hydraulic control box, characterized in that, include: An explosion-proof enclosure, electrical equipment, and hydraulic equipment, wherein the electrical equipment and hydraulic equipment are assembled inside the explosion-proof enclosure; The explosion-proof enclosure includes a enclosure body, an electrical end cover, and a hydraulic end cover; The enclosure, electrical end cap, and hydraulic end cap are combined to form a complete explosion-proof surface for explosion protection. The enclosure is equipped with a partition, and the enclosure is divided into an electrical cavity and a hydraulic cavity based on the partition. The bottom of the explosion-proof enclosure is equipped with a cable introduction device that is connected to the electrical cavity to introduce the cable into the explosion-proof enclosure. A hydraulic pipe is provided on one side of the explosion-proof enclosure and connected to the hydraulic cavity for hydraulic control oil circuit.

2. The explosion-proof electro-hydraulic control box according to claim 1, characterized in that, The cable entry device uses adhesive sealing to introduce the cable into the explosion-proof box.

3. The explosion-proof electro-hydraulic control box according to claim 1, characterized in that, The electrical device is electrically connected to the hydraulic device and controls the operation of the hydraulic device through electrical signals; The electrical device includes a controller and a current signal acquisition module, and the hydraulic device includes a proportional control valve and a pressure sensor; The controller controls the proportional control valve as an actuator to check the valve core position, and the current signal acquisition module acquires the signals from the pressure sensor and the valve core position.

4. The explosion-proof electro-hydraulic control box according to claim 3, characterized in that, The hydraulic device also includes: The system includes a flow sensor, an electro-proportional relief valve, a hydraulic valve block, and a mechanical relief valve. The hydraulic valve block is connected to the proportional control valve. The pressure sensor and the mechanical relief valve are mounted on the hydraulic valve block. The electro-proportional relief valve is located at one end of the pressure sensor and is connected to the flow sensor.

5. The explosion-proof electro-hydraulic control box according to claim 4, characterized in that, The flow sensor is used to detect the flow rate of hydraulic oil through the valve core of the proportional control valve.

6. The explosion-proof electro-hydraulic control box according to claim 3, characterized in that, The electrical device also includes: The device includes a tilt sensor, an electrical mounting plate, a wiring assembly, and terminal blocks. The controller is installed inside the electrical cavity and connected to the electrical mounting plate. The current signal acquisition module, tilt sensor, and terminal blocks are mounted on the electrical mounting plate.

7. The explosion-proof electro-hydraulic control box according to claim 6, characterized in that, The cable guide assembly is installed on the partition to connect the electrical cavity and the hydraulic cavity, and the cable is connected to the electrical cavity and the hydraulic cavity through the cable guide assembly.

8. The explosion-proof electro-hydraulic control box according to claim 6, characterized in that, The tilt sensor is used to detect the deflection angle of the explosion-proof enclosure.

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