Intrinsic safety type electro-hydraulic control operation box for heading machine

Abstract

The utility model relates to the technical field of intrinsic safety type electro-hydraulic control operation boxes, and discloses an intrinsic safety type electro-hydraulic control operation box for a heading machine, which comprises a control box main body and an assembly hole, an operation handle is arranged at the bottom of the front end of the control box main body, and a protective cover is connected outside a hollow ring. By adopting a control mode of combining a plurality of operating handles and toggle switches, the utility model has various state indications to facilitate state analysis and maintenance, the position of the indicator lamp can obtain indication information, the operating mode highly restores the original mechanical operation of a unit, and the opening size of an oil path of the electromagnetic valve is controlled. According to the control box, the operation of a unit is accurately controlled, the service life is long, the operation handle and the toggle switch of the control box main body adopt corrosion-resistant silicone rubber sheaths, and the positions of the enabling keys and the indicating lamps are protected by adopting protective covers, so that operation interlocking is physically realized, and the overall safety is better improved in the working process.

Description

Technical Field

[0001] The utility model relates to the technical field of an intrinsically safe electro-hydraulic control operating box, in particular to an intrinsically safe electro-hydraulic control operating box for a tunneling machine. Background Art

[0002] Roadheaders are mechanical equipment used for underground mining or tunneling. Roadheaders are widely used in mining because they have greater advantages in efficiency, safety and environmental protection compared to traditional mining methods. They can be configured according to different needs and adapt to various mining conditions. Therefore, they can be used in different mines.

[0003] In order to build a smart mine, it is necessary to provide an intrinsically safe electro-hydraulic control operation box to assist in operation, meet the harsh operating conditions of the underground working face, and realize efficient, safe and green mining of the comprehensive excavation working face. The traditional intrinsically safe electro-hydraulic control operation box has poor anti-misoperation performance when in use, and it is difficult to meet the combination of most electro-hydraulic control systems and voice systems, which can directly affect the safe application of smart mines. Utility Model Content

[0004] The purpose of the utility model is to provide an intrinsically safe electro-hydraulic control operating box for a tunnel boring machine, so as to solve the problem mentioned in the above background technology that the traditional intrinsically safe electro-hydraulic control operating box has poor anti-misoperation performance when in use, and is difficult to meet the combination of most electro-hydraulic control systems and voice systems, which can directly affect the safety application of smart mines.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intrinsically safe electro-hydraulic control operation box for a tunnel boring machine, comprising a control box body and an assembly hole, an operating handle is installed at the bottom position of the front end of the control box body, an indicator light is installed at the left position of the front end of the control box body near the top, a button switch is installed at the right position of the front end of the control box body near the top, a base plate is installed at the right position of the top of the control box body, an audible and visual alarm is installed at the top of the base plate, a hollow ring is installed at the top of the base plate at the outside position of the audible and visual alarm, a hollow groove is formed inside the hollow ring, an outer wall of the hollow ring is fixed with an external thread, and a protective cover is connected to the outside of the hollow ring.

[0006] Preferably, an internal thread is installed on the inner wall of the protective cover near the bottom, and a threaded connection is formed between the internal thread and the external thread.

[0007] Preferably, the inner diameter of the hollow groove is larger than the outer diameter of the sound and light alarm, and the protective cover is designed to be transparent.

[0008] Preferably, the indicator lights are evenly distributed in four groups at the front end of the control box body, and the button switches are evenly distributed in five groups at the front end of the control box body.

[0009] Preferably, a wiring head is installed on the left side of the control box body near the bottom, a hollow groove is formed in the middle of the wiring head, an insulating rubber layer is fixed to the inner wall of the hollow groove, and a rubber ring is connected to the outside of the insulating rubber layer.

[0010] Preferably, an adhesive connection is formed between the insulating rubber layer and the rubber ring, a first insulating belt is fixed inside the terminal head, a flame retardant layer is fixed outside the first insulating belt, and a second insulating belt is fixed outside the flame retardant layer.

[0011] Preferably, the outer side wall of the control box body is coated with an anti-corrosion layer, the outer side wall of the anti-corrosion layer is coated with a wear-resistant layer, and reinforcing components are evenly distributed inside the shell plate of the control box body.

[0012] Preferably, the reinforcement assembly comprises a first reinforcement rod and a second reinforcement rod, and a connecting rod is fixed between the first reinforcement rod and the second reinforcement rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the intrinsically safe electro-hydraulic control operation box for the tunnel boring machine not only improves the ability to prevent misoperation, but also improves the protection ability and use strength of the intrinsically safe electro-hydraulic control operation box;

[0014] By adopting a control method combining multiple operating handles and button switches, it has multiple status indications to facilitate status analysis and maintenance. The position of the indicator light can obtain indication information. The operation method highly restores the original mechanical operation of the unit, making it easier and more convenient for the driver of the tunnel boring machine to operate. The controller collects the signal output of the operating handle and filters it through the algorithm. The controller transmits the data to the controller through communication to control the opening size of the solenoid valve oil circuit, so as to achieve precise control of the unit action and have a long service life. The operating handle and button switch of the control box body are protected by corrosion-resistant silicone rubber sheaths, and the position of the enable button and the indicator light are protected by protective covers to meet the harsh working conditions of the underground working face and realize efficient, safe and green mining of the comprehensive excavation working face. The switch hydraulic action of the tunnel boring machine is driven by a motor, and there is an interlocking relationship between the positive and negative actions. The three-speed self-locking button switch is used to physically realize the operation interlock, thereby achieving the purpose of preventing misoperation, thereby better improving the overall safety during the work process.

[0015] The alarm is performed by using the sound and light alarm, and the outer part of the sound and light alarm forms a thread lock by the mutual cooperation between the inner thread and the outer thread, so the protective cover can be assembled on the outer part of the hollow ring, so that the sound and light alarm can be protected by the protective cover during operation, and at the same time, when the line is output at the position of the empty slot, the rubber ring forms a certain contact protection, and under the distribution of the first insulation belt, the flame retardant layer and the second insulation belt, it plays a certain flame retardant and heat insulation effect, so the overall use protection ability is better improved during the operation;

[0016] Anti-corrosion protection is formed by coating the anti-corrosion layer on the outer wall of the control box body, and the wear-resistant layer is coated on the outside of the anti-corrosion layer to achieve the purpose of wear-resistant protection. At the same time, with the uniform distribution of the reinforcement components, the first reinforcement rod, the second reinforcement rod and the connecting rod are used to reinforce the component panels of the control box body, thereby improving the overall strength of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the system block diagram structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the side cross-sectional structure of the wiring head of the utility model;

[0020] Figure 4 For the utility model Figure 1 A schematic diagram of the enlarged cross-section structure at the middle A;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the control box body of the utility model.

[0022] In the figure: 1. Control box body; 2. Indicator light; 3. Toggle switch; 4. Sound and light alarm; 5. Operating handle; 6. Terminal block; 7. Assembly hole; 8. Empty slot; 9. Insulating rubber layer; 10. Rubber ring; 11. First insulation belt; 12. Flame retardant layer; 13. Second insulation belt; 14. Protective cover; 15. Internal thread; 16. External thread; 17. Bottom plate; 18. Hollow ring; 19. Hollow slot; 20. Anti-corrosion layer; 21. Wear-resistant layer; 22. Reinforcement assembly; 23. First reinforcement rod; 24. Second reinforcement rod; 25. Connecting rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides an embodiment: an intrinsically safe electro-hydraulic control operation box for a tunnel boring machine, comprising a control box body 1 and an assembly hole 7. An operating handle 5 is installed at the bottom of the front end of the control box body 1, an indicator light 2 is installed at the left position of the front end of the control box body 1 near the top, a button switch 3 is installed at the right position of the front end of the control box body 1 near the top, a bottom plate 17 is installed at the right position of the top of the control box body 1, an audible and visual alarm 4 is installed at the top of the bottom plate 17, a hollow ring 18 is installed at the top of the bottom plate 17 at the outside of the audible and visual alarm 4, a hollow groove 19 is formed inside the hollow ring 18, an outer wall of the hollow ring 18 is fixed with an external thread 16, and the outside of the hollow ring 18 is connected with a protective cover 14.

[0025] An internal thread 15 is installed at a position near the bottom of the inner wall of the protective cover 14 , and a threaded connection is formed between the internal thread 15 and the external thread 16 .

[0026] The inner diameter of the hollow groove 19 is larger than the outer diameter of the sound and light alarm 4, and the protective cover 14 is designed to be transparent.

[0027] The indicator lights 2 are evenly distributed in four groups at the front end of the control box body 1 , and the button switches 3 are evenly distributed in five groups at the front end of the control box body 1 .

[0028] A terminal head 6 is installed near the bottom of the left side of the control box body 1, and a slot 8 is formed in the middle of the terminal head 6. An insulating rubber layer 9 is fixed to the inner wall of the slot 8, and a rubber ring 10 is connected to the outside of the insulating rubber layer 9.

[0029] An adhesive connection is formed between the insulating rubber layer 9 and the rubber ring 10 . A first insulating belt 11 is fixed inside the terminal head 6 . A flame retardant layer 12 is fixed outside the first insulating belt 11 . A second insulating belt 13 is fixed outside the flame retardant layer 12 .

[0030] The outer wall of the control box body 1 is coated with an anti-corrosion layer 20 , the outer wall of the anti-corrosion layer 20 is coated with a wear-resistant layer 21 , and reinforcement components 22 are evenly distributed inside the shell plate of the control box body 1 .

[0031] The reinforcement assembly 22 includes a first reinforcement rod 23 and a second reinforcement rod 24, and a connecting rod 25 is fixed between the first reinforcement rod 23 and the second reinforcement rod 24;

[0032] Furthermore, an enabling button is installed at the upper right corner of the front end of the control box body 1. When the enabling button is pressed, even if any button of the control box body 1 is operated, the oil circuit action cannot be controlled to protect the crew driver and surrounding personnel;

[0033] Further, the enabling button and indicator light 2 are protected by a cover;

[0034] Furthermore, the control box body 1 is composed of a plurality of stainless steel plates, so the first reinforcing rod 23, the second reinforcing rod 24, and the connecting rod 25 are evenly distributed in the stainless steel plate, and the anti-corrosion layer 20 and the wear-resistant layer 21 are coated on the outer wall of the stainless steel plate;

[0035] A controller is further installed in the control box body 1 for processing the signal algorithm.

[0036] Working principle: First, when working, the control box body 1 collects the signal output of the operating handle 5 through the controller, filters it through the algorithm, and transmits the data to the controller through communication, so as to control the opening size of the solenoid valve oil circuit and realize precise control of the unit action. The system detects each button before power-on, and the system can operate normally only when it is in the normal position. An enable button is installed in the upper right corner of the front end of the control box body 1. When the enable button is pressed, even if any button of the control box body 1 is operated, the oil circuit action cannot be controlled to protect the unit driver and surrounding personnel. The wiring method of the quick-plug aviation plug is used. When the line is output at the position of the empty slot 8, the rubber ring 10 forms a certain contact protection to prevent interference and extrusion of key wiring signals.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An intrinsically safe electro-hydraulic control operating box for a roadheader, comprising a control box body (1) and an assembly hole (7), characterized in that: An operating handle (5) is installed at a position at the bottom of the front end of the control box body (1), an indicator light (2) is installed at a left position near the top of the front end of the control box body (1), a button switch (3) is installed at a right position near the top of the front end of the control box body (1), a bottom plate (17) is installed at a right position at the top of the control box body (1), a sound and light alarm (4) is installed at the top of the bottom plate (17), a hollow ring (18) is installed at a position outside the sound and light alarm (4) at the top of the bottom plate (17), a hollow groove (19) is formed inside the hollow ring (18), an outer wall of the hollow ring (18) is fixed with an external thread (16), and the outside of the hollow ring (18) is connected to a protective cover (14).

2. The intrinsically safe electro-hydraulic control operation box for a roadheader according to claim 1, characterized in that: An internal thread (15) is installed at a position close to the bottom of the inner wall of the protective cover (14), and a threaded connection is formed between the internal thread (15) and the external thread (16).

3. The intrinsically safe electro-hydraulic control operation box for a roadheader according to claim 1, characterized in that: The inner diameter of the hollow groove (19) is larger than the outer diameter of the sound and light alarm (4), and the protective cover (14) is designed to be transparent.

4. The intrinsically safe electro-hydraulic control operation box for a roadheader according to claim 1, characterized in that: The indicator lights (2) are evenly distributed in four groups at the front end of the control box body (1), and the button switches (3) are evenly distributed in five groups at the front end of the control box body (1).

5. The intrinsically safe electro-hydraulic control operation box for a roadheader according to claim 1, characterized in that: A wiring head (6) is installed at a position near the bottom of the left side of the control box body (1), a hollow groove (8) is formed in the middle of the wiring head (6), an insulating rubber layer (9) is fixed to the inner wall of the hollow groove (8), and a rubber ring (10) is connected to the outside of the insulating rubber layer (9).

6. The intrinsically safe electro-hydraulic control operation box for a roadheader according to claim 5, characterized in that: An adhesive connection is formed between the insulating rubber layer (9) and the rubber ring (10); a first insulating belt (11) is fixed inside the terminal head (6); a flame retardant layer (12) is fixed outside the first insulating belt (11); and a second insulating belt (13) is fixed outside the flame retardant layer (12).

7. The intrinsically safe electro-hydraulic control operation box for a roadheader according to claim 1, characterized in that: The outer wall of the control box body (1) is coated with an anti-corrosion layer (20), the outer wall of the anti-corrosion layer (20) is coated with a wear-resistant layer (21), and reinforcement components (22) are evenly distributed inside the shell plate of the control box body (1).

8. The intrinsically safe electro-hydraulic control operation box for a roadheader according to claim 7, characterized in that: The reinforcement assembly (22) comprises a first reinforcement rod (23) and a second reinforcement rod (24), and a connecting rod (25) is fixed between the first reinforcement rod (23) and the second reinforcement rod (24).

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