Cooling device of coal mining machine of coal mine

Abstract

The utility model discloses a heat dissipation device for a coal mining machine of a coal mine, which comprises a coal mining machine body and an electric control chamber arranged in the coal mining machine body, a water-cooling heat dissipation device is arranged in the electric control chamber, and a dust removal heat dissipation device is arranged at the top of the coal mining machine body; the top of the coal mining machine body is designed to be triangular, the dust removal and heat dissipation device comprises a dust removal box, an air blowing assembly and two cleaning assemblies, and the dust removal box is installed above the coal mining machine body in a left-right sliding mode; a power driving assembly for driving the dust removal box to reciprocate left and right is arranged at the top of the coal mining machine body; the two cleaning assemblies are symmetrically mounted in dust removal boxes on the two sides of the coal mining machine body, each cleaning assembly comprises two cleaning rollers arranged in parallel, and the air blowing assembly is arranged between the two cleaning assemblies; dust outlets are formed in the sides, far away from the air blowing assembly, of the dust removal box. According to the device, the electric control chamber of the coal mining machine can be effectively cooled, dust accumulated at the top of the coal mining machine can be effectively cleaned, and the cooling efficiency of electrical equipment in the electric control chamber is improved.

Description

Technical Field

[0001] The utility model belongs to the field of coal mining equipment, and in particular relates to a heat dissipation device for a coal mining machine. Background Art

[0002] The underground environment is relatively harsh and the ventilation is poor. The equipment on the coal mining machine has a high temperature when working for a long time. The high temperature will cause a large load on the electrical equipment in the motor and the electronic control chamber, shortening its service life. Coal mining machines generally use water cooling equipment to dissipate heat from motors, electronic control chambers, etc. However, underground coal mining will generate a large amount of dust, which will accumulate on the top of the coal mining machine. The thick dust will seriously affect the heat dissipation effect of the top of the electronic control chamber. The existing coal mining machine heat dissipation device cannot effectively clean the coal dust on the coal mining machine. Utility Model Content

[0003] In order to address the deficiencies of the prior art, the utility model aims to provide a heat dissipation device for a coal mining machine in a coal mine. The device can effectively dissipate heat in the electrical control chamber of the coal mining machine, effectively clean up the dust accumulated on the top of the coal mining machine, and improve the heat dissipation efficiency of the electrical equipment in the electrical control chamber.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A heat dissipation device for a coal mining machine in a coal mine comprises a coal mining machine body and an electric control chamber arranged therein, a water-cooled heat dissipation device is arranged inside the electric control chamber, and a dust removal and heat dissipation device is arranged on the top of the coal mining machine body; the top of the coal mining machine body is designed in a triangular shape, and the dust removal and heat dissipation device comprises a dust removal box, an air blast assembly and two groups of cleaning assemblies, the dust removal box is matched with the top of the coal mining machine body in shape and is slidably installed above the coal mining machine body left and right; a power drive assembly for driving the dust removal box to reciprocate left and right is arranged on the top of the coal mining machine body; the two groups of cleaning assemblies are symmetrically installed in the dust removal boxes on both sides of the coal mining machine body, the cleaning assembly comprises two cleaning rollers arranged in parallel and close to the top surface of the coal mining machine body, the air blast assembly is arranged between the two groups of cleaning assemblies and its two air outlets are arranged respectively towards the cleaning rollers on both sides; the dust removal box is respectively provided with dust outlets on the front and rear sides away from the air blast assembly.

[0006] Preferably, the water-cooled heat dissipation device includes a heat transfer plate, a cooling mechanism and a water circulation mechanism. The heat transfer plate is installed on the inner wall of the electric control chamber. A circulating water passage is opened in the heat transfer plate. The inlet and outlet of the circulating water passage are respectively connected to the water circulation mechanism and the cooling mechanism; the cooling mechanism is connected to the water circulation mechanism.

[0007] Preferably, the power drive assembly includes a screw and a first motor, the screw is horizontally installed on the top tip of the coal mining machine body, and the screw is connected to the power of the first motor; a bracket is fixed in the dust removal box, and the blowing mechanism and the cleaning assembly are installed on the bracket; the screw movably passes through the dust removal box and is connected to the through-hole threaded sleeve on the bracket.

[0008] Preferably, slide grooves are provided on the front and rear sides of the top surface of the coal mining machine body parallel to the screw rod, and the bottom of the dust removal box is slidably clamped in the slide grooves.

[0009] Preferably, the two cleaning rollers of the cleaning assembly rotate in opposite directions.

[0010] Preferably, the two cleaning rollers are spaced apart, and gears are coaxially fixedly provided at one end of the roller shafts of the two cleaning rollers, the two gears are meshed and one of the gears is connected to the second motor power.

[0011] Preferably, the blowing assembly includes a blower and an air guide box, the exhaust port of the blower is connected to the air inlet of the air guide box, the air guide box is divided into two exhaust chambers, and the air outlets of the two exhaust chambers are respectively arranged between two groups of cleaning rollers facing the dust outlet.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model cools down the cooling water through the cooling mechanism, and then the cooling water is circulated and supplied to the heat transfer plate by the water circulation mechanism, so as to realize the effective heat dissipation of the electric control chamber. The S-shaped design of the circulating water passage in the heat transfer plate can significantly improve the heat exchange efficiency and improve the heat dissipation and cooling effect of the electric control chamber.

[0014] 2. The screw rod movably penetrates the dust removal box and is connected with the through-hole thread sleeve on the bracket. Under the sliding limit of the dust removal box and the slide slot, when the first motor drives the screw rod to rotate, it can drive the dust removal box to slide back and forth on the top of the coal mining machine body, making the movement of the dust removal box more stable.

[0015] 3. When the two cleaning rollers sweep the coal dust on the top of the coal mining machine body to the middle, the air blowing assembly operates and the blown wind blows downward obliquely, which can discharge the coal dust swept by the two sets of cleaning rollers to the dust outlet. The coal dust removal effect on the coal mining machine body is better, which can significantly improve the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a side sectional view of the dust removal box of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation of two sets of cleaning components of the utility model;

[0019] Figure 4 It is a cross-sectional view of the heat transfer plate of the utility model. DETAILED DESCRIPTION

[0020] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of use of the present invention.

[0021] like Figure 1-4 As shown, the utility model proposes a heat dissipation device for a coal mining machine, including a coal mining machine body 1 and an electric control chamber 11 arranged inside the body, a water cooling heat dissipation device is arranged inside the electric control chamber 11, and the water cooling heat dissipation device includes a heat transfer plate 6, a cooling mechanism and a water circulation mechanism, the heat transfer plate 6 is installed on the inner wall of the electric control chamber 11, and a circulating water passage 60 with a zigzag direction is opened in the heat transfer plate 6, and the inlet and outlet of the circulating water passage 60 are respectively connected to the water circulation mechanism and the cooling mechanism; the cooling mechanism is connected to the water circulation mechanism. The water circulation mechanism can adopt a water tank and a water pump structure, the water inlet end of the water pump is connected to the water tank, and the water outlet end is connected to the inlet of the circulating water passage 60, and the cooling mechanism can adopt a water cooling row structure, and the water cooling row structure is cooled by a fan, which is a prior art, and its principle is not repeated here. The two ends of the water cooling row are respectively connected to the outlet of the circulating water passage 60 and the water tank. The cooling water is cooled by the cooling mechanism, and then the cooling water is circulated and supplied to the heat transfer plate 6 by the water circulation mechanism, so as to realize effective heat dissipation of the electric control chamber 11. The S-shaped design of the circulating water passage 60 in the heat transfer plate 6 can significantly improve the heat exchange efficiency and improve the heat dissipation and cooling effect of the electric control chamber 11.

[0022] A dust removal and heat dissipation device is provided on the top of the coal mining machine body 1. The triangular design of the top of the coal mining machine body 1 is in the shape of a roof, which can reduce the deposition of coal dust on the top of the coal mining machine body 1, and is also more conducive to the dust being swept and blown off along the inclined surface on both sides during dust removal. The dust removal and heat dissipation device includes a dust removal box 2, a blast assembly, and two sets of cleaning assemblies. The bottom of the dust removal box 2 is matched with the top of the coal mining machine body 1 in shape and is slidably installed on the top of the coal mining machine body 1 from left to right. T-shaped slide grooves 12 are provided on the front and rear sides of the top of the coal mining machine body 1 parallel to the screw 31 along its length direction. The bottom of the dust removal box 2 is slidably engaged with the slide groove 12 through a T-shaped block structure 21, which can effectively ensure the stability of the dust removal box 2 when sliding on the top of the coal mining machine body 1. A power drive assembly for driving the dust removal box 2 to reciprocate left and right is provided on the top of the coal mining machine body 1; the power drive assembly includes a screw 31 and a first motor 32. The screw 31 is horizontally installed on the top tip of the coal mining machine body 1 from left to right, and the screw 31 is connected to the first motor 32 in power. A bracket 3 is fixedly arranged in the dust removal box 2, and a blower 5 and a cleaning assembly are mounted on the bracket 3. The screw 31 movably penetrates the dust removal box 2 and is threadedly sleeved with the through hole on the bracket 3. Under the sliding limit of the dust removal box 2 and the slide 12, when the first motor 32 drives the screw 31 to rotate, the dust removal box 2 can be driven to slide back and forth on the top of the coal mining machine body 1, so that the movement of the dust removal box 2 is more stable.

[0023] Two groups of cleaning components are symmetrically arranged and installed in the dust removal box 2 on both sides of the coal mining machine body 1 close to the inclined surface of the coal mining machine body 1. Each group of cleaning components includes two cleaning rollers 4 arranged parallel to the top surface of the coal mining machine body 1 on the bracket 3. The two cleaning rollers 4 are arranged at intervals, and the two cleaning rollers 4 in the same group rotate in opposite directions, so that the coal dust on the top inclined surface of the coal mining machine body 1 can be swept to the middle of the two cleaning rollers 4. Specifically, the installation method of the cleaning roller 4 can adopt that one end of the roller shaft of the two cleaning rollers 4 is coaxially fixed with a gear 41, the two gears 41 are meshed and one of the gears 41 is connected to the power of the second motor. The second motor drives one of the driving gears 41 to rotate, and then drives the other gear 41 to rotate synchronously in the opposite direction, so that the two cleaning rollers 4 rotate in opposite directions, and the coal dust is swept to the middle of the two cleaning rollers 4.

[0024] The air blast assembly is arranged between the two groups of cleaning assemblies and its two air outlets are respectively arranged toward the cleaning rollers 4 on both sides. Specifically, the air blast assembly includes a blower 5 and an air guide box. The exhaust port of the blower 5 is connected to the air inlet of the air guide box. The air guide box is divided into two exhaust chambers 51. The air outlets of the two exhaust chambers 51 are inclined downward toward the dust outlet 20 and are arranged between the two groups of cleaning rollers 4. And the dust removal box 2 is provided with a dust outlet 20 at the front and rear away from the side of the air blast assembly and corresponding to the gap in the middle of the two cleaning rollers 4. When the two cleaning rollers 4 sweep the coal dust on the top of the coal mining machine body 1 to the middle, under the action of the air blast assembly, the blown wind is blown obliquely downward, and the coal dust swept by the two groups of cleaning rollers 4 can be discharged to the dust outlet 20. The coal dust removal effect on the coal mining machine body 1 is better, and the cleaning efficiency can be significantly improved.

[0025] When the utility model is used, the inside of the electric control chamber 11 can effectively cool the heat by water through the heat exchange of the heat transfer plate 6 through the cooperation of the cooling mechanism and the water circulation mechanism; and at the top of the coal mining machine body 1, the first motor 32 drives the screw 31 to rotate, so that the dust removal box 2 reciprocates left and right; and in the dust removal box 2, the second motor drives the cleaning rollers 4 of the two sets of cleaning components to rotate, sweeping the coal dust on the top of the coal mining machine body 1 to the middle thereof, and then the air blowing component blows the coal dust out to the dust outlets 20 on both sides.

[0026] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A heat dissipation device for a coal mining machine, comprising a coal mining machine body and an electric control chamber arranged in the coal mining machine body, characterized in that: A water-cooling heat dissipation device is provided inside the electric control chamber, and a dust removal and heat dissipation device is provided on the top of the coal mining machine body; the top of the coal mining machine body is designed in a triangular shape, and the dust removal and heat dissipation device includes a dust removal box, an air blower assembly and two groups of cleaning assemblies, the dust removal box is matched with the top of the coal mining machine body in shape and is slidably installed above the coal mining machine body left and right; a power drive assembly for driving the dust removal box to reciprocate left and right is provided on the top of the coal mining machine body; the two groups of cleaning assemblies are symmetrically installed in the dust removal box on both sides of the coal mining machine body, the cleaning assembly includes two cleaning rollers arranged in parallel and close to the top surface of the coal mining machine body, the air blower assembly is arranged between the two groups of cleaning assemblies and its two air outlets are respectively arranged towards the cleaning rollers on both sides; the dust removal box is respectively provided with dust outlets on the front and rear sides away from the air blower assembly.

2. The heat dissipation device for a coal mining machine according to claim 1, characterized in that: The water-cooling heat dissipation device includes a heat transfer plate, a cooling mechanism and a water circulation mechanism. The heat transfer plate is installed on the inner wall of the electric control chamber. A circulating water passage is opened in the heat transfer plate. The inlet and outlet of the circulating water passage are respectively connected to the water circulation mechanism and the cooling mechanism; the cooling mechanism is connected to the water circulation mechanism.

3. The heat dissipation device for a coal mining machine according to claim 2, characterized in that: The power drive assembly includes a screw and a first motor. The screw is horizontally installed on the top tip of the coal mining machine body, and the screw is connected to the power of the first motor. A bracket is fixed in the dust removal box, and the blowing mechanism and the cleaning assembly are installed on the bracket. The screw movably penetrates the dust removal box and is connected with the perforated thread on the bracket.

4. The heat dissipation device for a coal mining machine according to claim 2, characterized in that: The front and rear sides of the top surface of the coal mining machine body are provided with sliding grooves parallel to the screw rod, and the bottom of the dust removal box is slidably clamped in the sliding grooves.

5. The heat dissipation device for a coal mining machine according to claim 3, characterized in that: The two cleaning rollers of the cleaning assembly rotate in opposite directions.

6. The heat dissipation device for a coal mining machine according to claim 3, characterized in that: The two cleaning rollers are arranged at intervals, and gears are coaxially fixed on one end of the roller shafts of the two cleaning rollers. The two gears are meshed and one of the gears is connected to the second motor power.

7. The heat dissipation device for a coal mining machine according to claim 6, characterized in that: The air blowing assembly includes a blower and an air guide box. The exhaust port of the blower is connected to the air inlet of the air guide box. The air guide box is divided into two exhaust chambers. The air outlets of the two exhaust chambers are respectively arranged between two groups of cleaning rollers facing the dust outlet.

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