Illuminating device for mine

Abstract

The invention belongs to the technical field of lighting equipment, and particularly relates to a mine lighting device which comprises a lifting rod and a lighting lamp, the lighting lamp is arranged in a dust cover fixedly connected with the lifting rod, a gradually-shrunk air channel for accelerating airflow is formed between the inner wall of the dust cover and a shell of the lighting lamp, and fan blades are rotationally arranged on the upper portion of the dust cover. A transmission assembly connected with the fan blades is arranged in the dustproof cover, the output end of the transmission assembly drives the piston plate to intermittently blow air to the illuminating lamp shell, and a filtering module is installed on the rear side of the dustproof cover. Through cooperation of the structure, intermittent forced heat dissipation is conducted on the illuminating lamp without a power source, meanwhile, dust is prevented from being attached to the surface of the illuminating lamp, the service life of the illuminating lamp is prolonged, and meanwhile the adverse effect of the dust on the illuminating effect is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of lighting equipment, in particular to a lighting device for mines. Background Art

[0002] An open-pit mine refers to a production and operation unit that mines mineral resources using open-pit mining. According to the terrain and burial conditions of the ore deposit, open-pit mines can be divided into hillside open-pit mines and depression open-pit mines. Since open-pit mines are not convenient for the layout of power supplies, mobile lighting vehicles are required.

[0003] However, the above-mentioned existing lighting devices still have the following defects: for example, due to the high dust content in the mining environment in which they are used, when the wind speed reaches level 4 or above, dust will be raised, and the air will contain a large amount of suspended dust particles. After the lighting lamp has been used in this environment for a period of time, a large amount of dust will adhere to the protective mirror and the surface of the protective shell, thereby affecting the lighting effect of the lighting device and reducing the heat dissipation effect of the heat dissipation fins provided on the protective shell. This requires regular cleaning of the lighting lamp of the lighting device to keep it in the best lighting state.

[0004] To this end, the present invention provides a lighting device for mines. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a lighting device for mines described in the present invention includes a lifting rod and a lighting lamp, the lighting lamp is arranged at the front part of a dust cover fixedly connected to the lifting rod, and a tapered air duct for accelerating the airflow is formed between the inner wall of the dust cover and the outer shell of the lighting lamp, an air storage chamber connected to the tapered air duct is provided in the dust cover, and a slidable piston plate is built in the dust cover, a transmission assembly is provided in the dust cover, and the output end of the transmission assembly drives the piston plate to intermittently supply air to the tapered air duct, the input end of the transmission assembly passes through the dust cover and is connected to a fan blade, a filter module is installed at the rear part of the dust cover, and an air guide channel is provided in the side wall of the dust cover to bypass the piston plate and connect to the air storage chamber.

[0007] Furthermore, the transmission assembly includes a planetary transmission mechanism, the ring gear of the planetary transmission mechanism is rotatably connected to the dust cover, one side of the ring gear is connected to a sector gear, one side of the piston plate is connected to a rack matching the sector gear, a guide column is provided through one side of the piston plate, and the outer sleeve of the two guide columns is provided with a return spring for driving the piston plate.

[0008] Furthermore, the exhaust port of the tapered air duct is provided with an air guide frame, and the angle between the cross section of the air guide frame and the mirror surface of the lighting lamp is in the range of 10°-15°, and the four inner corners of the air guide frame are integrated with pressure blocks for fixing the lighting lamp.

[0009] Furthermore, a side of the pressing block close to the dust cover is inlaid with an arc-shaped spring piece, and the dust cover is provided with a positioning groove matching the arc-shaped spring piece.

[0010] Furthermore, guide fins are evenly arranged on the inner side of the air guide frame.

[0011] Furthermore, the windward side of the guide fin is 15°, and the leeward side thereof is 45°.

[0012] Furthermore, the cross-sectional contraction ratio of the tapered air duct is not less than 1:3.

[0013] Furthermore, an asymmetric teardrop-shaped loop is provided in the middle section of the air guide channel.

[0014] Furthermore, an electromagnetic clutch is provided between the ring gear and the sector gear of the planetary transmission mechanism.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The mining lighting device described in the present invention adopts wind as a power source to drive the fan blades, so that no additional energy supply is required, and adopts a transmission component to intermittently drive the piston plate to blow air to the lighting lamp, thereby achieving forced heat dissipation of the lighting lamp, thereby increasing the service life of the lighting lamp and preventing dust from adhering to the outer casing of the lighting lamp and causing the lighting lamp's own heat dissipation effect.

[0017] 2. The lighting device for mining described in the present invention provides a tapered air duct on the inner wall of the corresponding section of the dust cover and the lighting lamp housing, so that the air flowing through is accelerated, so that the exhausted air has higher kinetic energy, which improves the effect of removing dust attached to the mirror surface of the lighting lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is a perspective view of the present invention;

[0020] Figure 2 It is a front view of the dust cover of the present invention;

[0021] Figure 3 It is a cross-sectional view of the dust cover of the present invention;

[0022] Figure 4 is a partial perspective view of the transmission assembly in embodiment 1 of the present invention;

[0023] Figure 5 It is a three-dimensional diagram of the air guide frame of the present invention;

[0024] Figure 6 yes Figure 5 A partial enlarged view of the middle part;

[0025] Figure 7 It is a partial three-dimensional diagram of the transmission component in the second embodiment of the present invention.

[0026] In the figure: 1. lifting rod; 2. dust cover; 3. lighting lamp; 4. transmission assembly; 5. fan blade; 6. piston plate; 7. filter module; 8. air guide frame; 9. pressure block; 10. guide fin; 11. arc-shaped spring; 12. electromagnetic clutch; 40. planetary transmission mechanism; 41. guide column; 42. sector gear; 43. rack; 44. return spring; 200. tapered air duct; 201. air storage chamber; 202. air guide channel. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] Example 1: Figures 1 to 6 As shown, the lighting lamp 3 described in the embodiment of the present invention is arranged at the front part of the dust cover 2 fixedly connected to the lifting rod 1, and the fan blade 5 is rotatably installed on the upper end of the dust cover 2. The fan blade adopts a parabolic cone wind cup style design, and the diameter of the wind cup is designed to be not less than 200 mm. As the wind force in the environment pushes the fan blade 5 to rotate, the fan blade 5 drives the sun gear of the planetary transmission mechanism 40 set in the dust cover 2 to rotate synchronously, wherein a planetary transmission mechanism with a transmission ratio of 2.5 to 5 is adopted, and then the ring gear drives the sector gear 42 to rotate slowly through the transmission of the planetary gear, and at the same time, the planetary transmission is used to The transmission characteristics of the driving mechanism 40 ensure that it has sufficient torque for driving under weak wind conditions (wind speed ≥ 3m / s, equivalent to level 2 wind), and can operate normally before the wind speed reaches the speed of blowing dust (wind speed ≥ 5.5m / s, equivalent to level 4 wind), so that the fan gear 42 can drive the rack 43 to pull the piston plate 6 to slide slowly backward, thereby creating a negative pressure state in the air storage chamber 201 and pressurizing the chamber on the rear side of the piston plate 6. At the same time, a filter module 7 is installed on the rear side of the dust cover 2, so that the filtered air is replenished into the air storage chamber 201 through the air guide channel 202.

[0029] like Figure 3As shown, an air exhaust flow channel is formed between the inner wall of the dust cover 2 and the outer shell of the lighting lamp 3, and the flow channel is designed to be a tapered air duct 200 with a cross-sectional contraction ratio of 1:3, thereby realizing a flow channel section with a Venturi acceleration effect, so that the flow rate of the air flowing through is increased, thereby increasing the exhaust air's ability to blow away dust attached to the mirror surface of the lighting lamp.

[0030] like Figure 3 、 Figure 5 and Figure 6 As shown, the fixing frame 9 is fixed to the dust cover 2 so that the lighting lamp 3 can be quickly installed and fixed. At the same time, guide fins 10 are evenly arranged on the inner side of the fixing frame 9 so that the exhausted air is evenly distributed and discharged. The windward side of the guide fins 10 is designed to be 15°, and the leeward side is designed to be 45°, so that the intermittently exhausted air generates a pulsed vortex, further improving the efficiency of the exhausted air in blowing away the dust attached to the mirror surface of the lighting lamp 3.

[0031] like Figure 3 As shown, in order to prevent the gas from flowing back through the gas guide channel 202, an asymmetric teardrop-shaped loop is opened in the middle section of the gas guide channel 202, so that when the gas flows back, turbulence is triggered to increase the counteracting resistance.

[0032] Example 2:

[0033] In a specific implementation process, when the external environmental wind speed is greater than 8m / s, the piston plate 6 reciprocates too quickly, which may easily cause partial backflow of air entering the tapered air duct 200, and the mechanical mechanism may be prone to fatigue damage. Compared with Example 1, another embodiment of the present invention is as follows:

[0034] like Figure 7 As shown, an electromagnetic clutch 12 is provided between the ring gear of the planetary transmission mechanism 40 and the sector gear 42. When it is detected that the wind speed of the external environment is greater than 8 m / s, the electromagnetic clutch 12 is powered off, so that the ring gear of the planetary transmission mechanism 40 is separated from the sector gear 42, so that the wind force no longer drives the sector gear 42 to operate.

[0035] Working principle: The wind force of the external environment is used to drive the fan blade 5 to rotate, so that the fan blade 5 drives the sun gear of the planetary transmission mechanism 40 to rotate synchronously, and then the ring gear drives the sector gear 42 to rotate slowly through the transmission characteristics of the planetary transmission mechanism 40. At the same time, the transmission characteristics of the planetary transmission mechanism 40 are used to make a smaller wind force produce a larger torque. The meshing transmission between the sector gear 42 and the rack 43 is used to make the rack 43 pull the piston plate 6 to slide outward along the inner wall of the air storage chamber 201, causing the inner cavity of the air storage chamber 201 to be in a negative pressure state, so that the external air is filtered by the filter module 7 and then enters the air storage chamber 201 through the air guide channel 202. At the same time, The piston plate 6 squeezes the return spring 44 to deform and store force. When the piston plate 6 slides to the outermost part of the air storage chamber 201, the tooth portion of the sector gear 42 engages with the rack 43 to end the transmission. At the same time, the force accumulated by the deformation of the return spring 44 is used to push the piston plate 6 to slide into the air storage chamber 201, so that the air in the air storage chamber 201 flows toward the tapered air duct 200, thereby forcing the improvement of the fluidity of the air outside the lighting lamp 3, thereby improving the heat dissipation efficiency of the lighting lamp 3 and avoiding the deposition of dust on the outside of the lighting lamp 3. At the same time, the structural characteristics of the tapered air duct 200 are used to accelerate the air flowing through, so that the dust on the mirror surface of the lighting lamp 3 is blown away by the air.

[0036] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the scope of protection of the present invention.

[0038] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A lighting device for mines, comprising a lifting rod (1) and a lighting lamp (3), characterized in that: The lighting lamp (3) is arranged at the front of the dust cover (2) fixedly connected to the lifting rod (1), and a tapered air duct (200) for accelerating the air flow is formed between the inner wall of the dust cover (2) and the outer shell of the lighting lamp (3). An air storage chamber (201) communicating with the tapered air duct (200) is provided in the dust cover (2), and a slidable piston plate (6) is built in the dust cover. A transmission component (4) is provided in the dust cover (2), and the output end of the transmission component (4) drives the piston plate (6) to intermittently supply air to the tapered air duct (200). The input end of the transmission component (4) passes through the dust cover (2) and is connected to a fan blade (5). A filter module (7) is installed at the rear of the dust cover (2), and an air guide channel (202) is provided in the side wall of the dust cover (2) to bypass the piston plate (6) and communicate with the air storage chamber (201).

2. A mine lighting device according to claim 1, characterized in that: The transmission assembly (4) includes a planetary transmission mechanism (40), a ring gear of the planetary transmission mechanism (40) is rotatably connected to the dust cover (2), one side of the ring gear is connected to a sector gear (42), one side of the piston plate (6) is connected to a rack (43) matching the sector gear (42), a guide column (41) is provided through one side of the piston plate (6), and the outer portion of the two guide columns (41) is provided with a return spring (44) for driving the piston plate (6).

3. A mine lighting device according to claim 2, characterized in that: The exhaust port of the tapered air duct (200) is provided with an air guide frame (8), and the angle between the cross section of the air guide frame (8) and the mirror surface of the lighting lamp (3) is in the range of 10°-15°. The four inner corners of the air guide frame (8) are all integrated with pressing blocks (9) for fixing the lighting lamp (3).

4. A mine lighting device according to claim 3, characterized in that: The pressing block (9) is inlaid with an arc-shaped spring piece (11) on one side close to the dust cover (2), and the dust cover (2) is provided with a positioning groove matching the arc-shaped spring piece (11).

5. A mine lighting device according to claim 4, characterized in that: Guide fins (10) are evenly arranged on the inner side of the air guide frame (8).

6. The mine lighting device according to claim 5, characterized in that: The windward side of the guide fin (10) is 15°, and the leeward side thereof is 45°.

7. A mine lighting device according to claim 6, characterized in that: The cross-sectional contraction ratio of the tapered air duct (200) is not less than 1:

3.

8. The mine lighting device according to claim 7, characterized in that: An asymmetric teardrop-shaped loop is provided in the middle section of the air guide channel (202).

9. The mine lighting device according to claim 2, characterized in that: An electromagnetic clutch (12) is provided between the ring gear and the sector gear (42) of the planetary transmission mechanism (40).

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