An explosion-proof automatic charging device for a mining inspection robot

Abstract

A mining inspection robot explosion-proof automatic charging device comprises a charging plug and a charging socket; the charging plug comprises a plug flange base, a plug inner cylinder, a plug outer cylinder, a plug charging core, a plug insulating core, a circular slider, a plug reset spring, a limit block and a plug explosion-proof door; the charging socket comprises a socket front cylinder, a socket rear cylinder, a socket front charging core, a socket rear charging core, a socket reset spring and a socket explosion-proof door; the plug explosion-proof door and the socket explosion-proof door have the same structure, both comprising an insulating baffle, a movable baffle, a baffle reset spring, a spring limit block and a baffle limit plate, a side frame of the movable baffle adopts a wedge structure, and the wedge structure frame of the movable baffle is in contact with the end of the plug charging core; a plug charging core passage hole is provided on the insulating baffle; when not charging, the plug charging core passage hole is shielded by the wedge structure frame of the movable baffle; when charging, the plug charging core passage hole is free from the shielding of the wedge structure frame of the movable baffle.

Description

Technical Field

[0001] The invention belongs to the technical field of mining inspection robots, and in particular relates to an explosion-proof automatic charging device for mining inspection robots. Background Art

[0002] Mining inspection robots are widely used in dangerous places such as coal mines that require explosion-proof levels to replace manual inspection work. They are of great significance in alleviating labor intensity, reducing labor risks and improving production safety.

[0003] However, since the operating power of the mining inspection robot is generally provided by batteries, when the battery is low, it needs to be charged. However, the charging devices currently used in mining inspection robots do not have explosion-proof functions, which reduces the safety of the mining inspection robot when charging. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides an explosion-proof automatic charging device for a mining inspection robot, which has the characteristics of simple explosion-proof structure and high reliability, and can effectively meet the needs of safe charging of the mining inspection robot in flammable and explosive dangerous places.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an explosion-proof automatic charging device for a mining inspection robot, comprising a charging plug and a charging socket; the charging plug comprises a plug flange base, a plug inner cylinder, a plug outer cylinder, a plug charging core and a plug insulating core; one end of the plug inner cylinder is screwed and fixed on the plug flange base, the plug insulating core is fixedly installed inside the other end of the plug inner cylinder, the plug charging core is fixedly inserted on the plug insulating core, one end of the plug charging core is located inside the plug inner cylinder, and the other end of the plug charging core extends to the outside of the plug inner cylinder, and the end of the plug charging core extending to the outside of the plug inner cylinder adopts a ball head structure; the plug outer cylinder is sleeved on the plug inner cylinder, and a circular slider is screwed and fixed at the rear end of the plug outer cylinder, and the circular slider and the plug outer cylinder can move freely along the axial direction of the plug inner cylinder; a straight A wire groove, in which a plug reset spring is installed, one end of the plug reset spring is connected to the outer cylinder of the plug, and the other end of the plug reset spring is connected to the inner cylinder of the plug through a limit block; the front end of the outer cylinder of the plug adopts a conical structure, and a plug explosion-proof door is installed inside the front end cylinder mouth of the outer cylinder of the plug; the charging socket comprises a socket front cylinder, a socket rear cylinder, a socket front charging core and a socket rear charging core; the inner hole shape of the socket front cylinder is conical, the socket rear cylinder is screwed and fixedly connected to the cylinder mouth of the small diameter end of the inner hole of the socket front cylinder, and a socket explosion-proof door is installed at the connection between the socket front cylinder and the socket rear cylinder; the socket rear charging core is fixedly arranged at the rear of the socket rear cylinder, the socket front charging core is located between the socket explosion-proof door and the socket rear charging core, the socket front charging core can move freely along the axial direction of the socket rear cylinder, and a socket reset spring is arranged between the socket front charging core and the socket rear charging core.

[0006] The plug explosion-proof door and the socket explosion-proof door have the same structure, both of which include an insulating baffle, a movable baffle, a baffle reset spring, a spring limit block and a baffle limit plate; the movable baffle adopts a rectangular frame structure, the baffle limit plate is fixedly arranged on the surface of the insulating baffle, the movable baffle is sleeved on the outside of the baffle limit plate, and the movable baffle can move freely in a direction perpendicular to the baffle limit plate; the frame on one side of the movable baffle facing the baffle limit plate adopts a wedge structure, one end of the baffle reset spring is fixedly connected to the outside of the wedge-shaped frame of the movable baffle, and the baffle is fixedly connected to the outside of the wedge-shaped frame of the movable baffle. The other end of the block reset spring is fixedly connected to the spring limit block, and the spring limit block is fixedly connected to the surface of the insulating baffle; a telescopic guide rod is installed inside the block reset spring; the inclined surface of the wedge-shaped structure frame of the movable block is in contact with the end of the plug charging core; a plug charging core passage hole is opened on the insulating baffle; in the uncharged state, the plug charging core passage hole is blocked by the wedge-shaped structure frame of the movable block; in the charging state, the plug charging core passage hole is free from the shielding of the wedge-shaped structure frame of the movable block.

[0007] The front charging core of the socket comprises a front charging core insulating seat, an inner conductive copper ring of the front charging core and an outer conductive copper ring of the front charging core; the inner conductive copper ring of the front charging core is fixedly inserted on the insulating seat of the front charging core, one end of the inner conductive copper ring of the front charging core is flush with the front surface of the insulating seat of the front charging core, and the other end of the inner conductive copper ring of the front charging core extends out of the rear surface of the insulating seat of the front charging core; the outer conductive copper ring of the front charging core is fixedly inserted on the insulating seat of the front charging core, and the outer conductive copper ring of the front charging core is concentrically sleeved on the outside of the inner conductive copper ring of the front charging core, one end of the outer conductive copper ring of the front charging core is flush with the front surface of the insulating seat of the front charging core, and the other end of the outer conductive copper ring of the front charging core is flush with the rear surface of the insulating seat of the front charging core.

[0008] The rear charging core of the socket comprises a rear charging core insulating seat, an inner conductive copper ring of the rear charging core and an outer conductive copper ring of the rear charging core; the inner conductive copper ring of the rear charging core is fixedly inserted on the rear charging core insulating seat, one end of the inner conductive copper ring of the rear charging core is flush with the front surface of the rear charging core insulating seat, and the other end of the inner conductive copper ring of the rear charging core is flush with the rear surface of the rear charging core insulating seat; the outer conductive copper ring of the rear charging core is fixedly inserted on the rear charging core insulating seat, and the outer conductive copper ring of the rear charging core is concentrically sleeved on the outer side of the inner conductive copper ring of the rear charging core, one end of the outer conductive copper ring of the rear charging core is flush with the front surface of the rear charging core insulating seat, and the outer conductive copper ring of the rear charging core is flush with the rear surface of the rear charging core insulating seat; the inner conductive copper ring of the rear charging core and the outer conductive copper ring of the rear charging core are respectively conductively connected to the positive and negative poles of the power supply.

[0009] Beneficial effects of the present invention:

[0010] The explosion-proof automatic charging device for a mining inspection robot of the present invention has the characteristics of simple explosion-proof structure and high reliability, and can effectively meet the demand for safe charging of the mining inspection robot in dangerous places such as flammable and explosive places. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of an explosion-proof automatic charging device for a mining inspection robot of the present invention;

[0012] Figure 2 It is a schematic diagram of the structure of the charging plug of the present invention;

[0013] Figure 3 It is a structural schematic diagram of the charging socket of the present invention;

[0014] Figure 4 It is a structural schematic diagram of the plug explosion-proof door / socket explosion-proof door (the passage hole of the plug charging core is blocked) of the present invention;

[0015] Figure 5 It is a schematic structural diagram of the plug explosion-proof door / socket explosion-proof door (the plug charging core passage hole is out of obstruction) of the present invention;

[0016] Figure 6 It is a schematic structural diagram of the charging core in front of the socket of the present invention;

[0017] Figure 7 It is a schematic diagram of the structure of the charging core behind the socket of the present invention;

[0018] In the figure, 1 is a plug flange base, 2 is an inner cylinder of the plug, 3 is an outer cylinder of the plug, 4 is a plug charging core, 5 is an insulating core of the plug, 6 is an annular slider, 7 is a plug reset spring, 8 is a limit stopper, 9 is a plug explosion-proof door, 10 is a socket front cylinder, 11 is a socket rear cylinder, 12 is a socket front charging core, 13 is a socket rear charging core, 14 is a socket explosion-proof door, 15 is a socket reset spring, 16 is an insulating stopper, 17 is a moving stopper, 18 is a stopper reset spring, 19 is a spring limiter, 20 is a stopper limiter plate, 21 is a plug charging core passage hole, 22 is a telescopic guide rod, 23 is a front charging core insulation seat, 24 is a front charging core inner conductive copper ring, 25 is a front charging core outer conductive copper ring, 26 is a rear charging core insulation seat, 27 is a rear charging core inner conductive copper ring, 28 is a rear charging core outer conductive copper ring. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1 to 7As shown, an explosion-proof automatic charging device for a mining inspection robot includes a charging plug and a charging socket; the charging plug includes a plug flange base 1, a plug inner cylinder 2, a plug outer cylinder 3, a plug charging core 4 and a plug insulating core 5; one end of the plug inner cylinder 2 is screwed and fixed on the plug flange base 1, and the plug insulating core 5 is fixedly installed inside the other end of the plug inner cylinder 2, and the plug charging core 4 is fixedly inserted on the plug insulating core 5, one end of the plug charging core 4 is located inside the plug inner cylinder 2, and the other end of the plug charging core 4 extends to the outside of the plug inner cylinder 2, and the end of the plug charging core 4 extending to the outside of the plug inner cylinder 2 adopts a ball head structure; the plug outer cylinder 3 is sleeved on the plug inner cylinder 2, and a circular slider 6 is screwed and fixed at the rear end of the plug outer cylinder 3, and the circular slider 6 and the plug outer cylinder 3 can move freely along the axial direction of the plug inner cylinder 2; a linear groove is opened on the inner surface of the plug outer cylinder 3 along the axial direction, and a plug reset spring 7 is installed in the linear groove, and the plug One end of the reset spring 7 is connected to the outer cylinder 3 of the plug, and the other end of the reset spring 7 is connected to the inner cylinder 2 of the plug through a limit stopper 8; the front end of the outer cylinder 3 of the plug adopts a conical structure, and a plug explosion-proof door 9 is installed inside the front end of the cylinder mouth of the outer cylinder 3 of the plug; the charging socket includes a socket front cylinder 10, a socket rear cylinder 11, a socket front charging core 12 and a socket rear charging core 13; the inner hole shape of the socket front cylinder 10 is conical, and the socket rear cylinder 11 is screwed fixed A socket explosion-proof door 14 is installed at the connection between the socket front cylinder 10 and the socket rear cylinder 11, and the socket rear charging core 13 is fixed at the rear of the socket rear cylinder 11. The socket front charging core 12 is located between the socket explosion-proof door 14 and the socket rear charging core 13. The socket front charging core 12 can move freely along the axial direction of the socket rear cylinder 11, and a socket reset spring 15 is arranged between the socket front charging core 12 and the socket rear charging core 13.

[0021] The plug explosion-proof door 9 and the socket explosion-proof door 14 have the same structure, both of which include an insulating baffle 16, a movable block 17, a block reset spring 18, a spring stopper 19 and a block limit plate 20; the movable block 17 adopts a rectangular frame structure, the block limit plate 20 is fixedly arranged on the surface of the insulating baffle 16, the movable block 17 is sleeved on the outside of the block limit plate 20, and the movable block 17 can move freely in a direction perpendicular to the block limit plate 20; the side frame of the movable block 17 facing the block limit plate 20 adopts a wedge structure, and one end of the block reset spring 18 is fixedly connected to the wedge-shaped structure frame of the movable block 1 Externally, the other end of the block reset spring 18 is fixedly connected to the spring limit block 19, and the spring limit block 19 is fixedly connected to the surface of the insulating baffle 16; a telescopic guide rod 22 is installed inside the block reset spring 18; the inclined surface of the wedge-shaped structure frame of the movable block 17 is in contact with the end of the plug charging core 4; a plug charging core through hole 21 is opened on the insulating baffle 16; in the uncharged state, the plug charging core through hole 21 is blocked by the wedge-shaped structure frame of the movable block 17; in the charging state, the plug charging core through hole 21 is free from the shielding of the wedge-shaped structure frame of the movable block 17.

[0022] The front charging core 12 of the socket includes a front charging core insulating seat 23, a front charging core inner conductive copper ring 24 and a front charging core outer conductive copper ring 25; the front charging core inner conductive copper ring 24 is fixedly inserted on the front charging core insulating seat 23, one end of the front charging core inner conductive copper ring 24 is flush with the front surface of the front charging core insulating seat 23, and the other end of the front charging core inner conductive copper ring 24 extends out of the rear surface of the front charging core insulating seat 23; the front charging core outer conductive copper ring 25 is fixedly inserted on the front charging core insulating seat 23, and the front charging core outer conductive copper ring 25 is concentrically sleeved on the outside of the front charging core inner conductive copper ring 24, one end of the front charging core outer conductive copper ring 25 is flush with the front surface of the front charging core insulating seat 23, and the other end of the front charging core outer conductive copper ring 25 is flush with the rear surface of the front charging core insulating seat 23.

[0023] The socket rear charging core 13 comprises a rear charging core insulating seat 26, an inner conductive copper ring 27 of the rear charging core and an outer conductive copper ring 28 of the rear charging core; the inner conductive copper ring 27 of the rear charging core is fixedly inserted on the rear charging core insulating seat 26, one end of the inner conductive copper ring 27 of the rear charging core is flush with the front surface of the rear charging core insulating seat 26, and the other end of the inner conductive copper ring 27 of the rear charging core is flush with the rear surface of the rear charging core insulating seat 26; the outer conductive copper ring 28 of the rear charging core is fixedly inserted on the rear charging core insulating seat 26, and the outer conductive copper ring 28 of the rear charging core is concentrically sleeved on the outer side of the inner conductive copper ring 27 of the rear charging core, one end of the outer conductive copper ring 28 of the rear charging core is flush with the front surface of the rear charging core insulating seat 26, and the outer conductive copper ring 28 of the rear charging core is flush with the rear surface of the rear charging core insulating seat 26; the inner conductive copper ring 27 of the rear charging core and the outer conductive copper ring 28 of the rear charging core are respectively connected to the positive and negative poles of the power supply.

[0024] The following describes a one-time use process of the present invention in conjunction with the accompanying drawings:

[0025] When the battery of the mining inspection robot is low on power, a charging procedure needs to be executed. At this time, the mining inspection robot moves toward the charging pile along the planned route. When the mining inspection robot approaches the charging pile, it starts to slow down, so that the charging plug on the mining inspection robot slowly approaches the charging socket on the charging pile until the plug outer cylinder 3 of the charging plug enters the conical inner hole of the socket front cylinder 10 of the charging socket. When the plug outer cylinder 3 rests against the bottom of the conical inner hole of the socket front cylinder 10, the plug outer cylinder 3 no longer moves. As the mining inspection robot continues to move, the plug inner cylinder 2 will continue to move forward. During this process, the plug reset spring 7 is gradually compressed, and the plug charging core 4 will move forward synchronously with the plug inner cylinder 2. The plug charging core 4 will move forward, and the plug charging core 4 will push open the movable block 17 on the plug explosion-proof door 9 and the socket explosion-proof door 14 in turn, until it abuts against the front charging core inner conductive copper ring 24 and the front charging core outer conductive copper ring 25 of the socket front charging core 12; the plug charging core 4 continues to move forward, which will push the socket front charging core 12 to move forward. During this process, the socket reset spring 15 is compressed until the front charging core inner conductive copper ring 24 of the socket front charging core 12 abuts against the rear charging core inner conductive copper ring 27 of the socket rear charging core 13, and at the same time, the front charging core outer conductive copper ring 25 of the socket front charging core 12 abuts against the rear charging core outer conductive copper ring 28 of the socket rear charging core 13, completing the current conduction and starting charging.

[0026] Among them, the specific process of the plug charging core 4 pushing open the movable block 17 on the plug explosion-proof door 9 and the socket explosion-proof door 14 is: the plug charging core 4 first leans against the inclined surface of the wedge-shaped structure frame of the movable block 17, and at this time, the pushing force applied by the plug charging core 4 to the wedge-shaped structure frame of the movable block 17 will be converted into a translational driving force of the movable block 17, until the plug charging core through hole 21 is completely out of the obstruction of the wedge-shaped structure frame of the movable block 17, and at this time, the plug charging core 4 can smoothly pass through the plug charging core through hole 21, and at the same time, the block reset spring 18 is in a stressed compressed state.

[0027] When the battery of the mining inspection robot is fully charged, the mining inspection robot is controlled to retreat and detach from the charging pile. At this time, the charging plug on the mining inspection robot will be synchronously detached from the charging socket on the charging pile. The front charging core 12 of the socket and the rear charging core 13 of the socket will be detached first. When the mining inspection robot retreats, the plug charging core 4 retreats synchronously, and the socket reset spring 15 gradually recovers from the compressed state to the extended state. Under the action of the spring force, the front charging core 12 of the socket completes the reset; the plug charging core 4 continues to retreat and exits the plug explosion-proof door 9 and the socket explosion-proof door in turn. Door 14, since the wedge-shaped structural frame of the movable block 17 on the plug explosion-proof door 9 and the socket explosion-proof door 14 has lost the obstruction of the plug charging core 4, under the action of the block reset spring 18, the movable block 17 has also completed the reset. At this time, the plug charging core passage hole 21 is again blocked by the wedge-shaped structural frame of the movable block 17; as the mining inspection robot continues to retreat, when the plug reset spring 7 recovers from the compressed state to the extended state, the plug outer cylinder 3 will retreat synchronously with the plug charging core 4 until the plug outer cylinder 3 is completely withdrawn from the socket front cylinder 10.

[0028] The solutions in the embodiments are not intended to limit the patent protection scope of the present invention. All equivalent implementations or changes that do not deviate from the present invention are included in the patent scope of this case.

Claims

1. An explosion-proof automatic charging device for a mining inspection robot, characterized in that: It includes a charging plug and a charging socket; the charging plug includes a plug flange base, a plug inner cylinder, a plug outer cylinder, a plug charging core and a plug insulating core; One end of the plug inner cylinder is screwed and fixed on the plug flange base, the plug insulating core is fixedly installed inside the other end of the plug inner cylinder, the plug charging core is fixedly inserted on the plug insulating core, one end of the plug charging core is located inside the plug inner cylinder, and the other end of the plug charging core extends to the outside of the plug inner cylinder, and the end of the plug charging core extending to the outside of the plug inner cylinder adopts a ball head structure; the plug outer cylinder is sleeved on the plug inner cylinder, and a circular slider is screwed and fixed at the rear end of the plug outer cylinder, and the circular slider and the plug outer cylinder can move freely along the axial direction of the plug inner cylinder; A linear groove is provided on the inner surface along the axial direction, and a plug reset spring is installed in the linear groove, one end of the plug reset spring is connected to the outer cylinder of the plug, and the other end of the plug reset spring is connected to the inner cylinder of the plug through a limit block; the front end of the outer cylinder of the plug adopts a conical structure, and a plug explosion-proof door is installed inside the front end of the cylinder mouth of the outer cylinder of the plug; the charging socket comprises a socket front cylinder, a socket rear cylinder, a socket front charging core and a socket rear charging core; the inner hole shape of the socket front cylinder is conical, and the socket rear cylinder is screwed and fixedly connected to the small-diameter end cylinder mouth of the inner hole of the socket front cylinder, and the socket front cylinder and the socket rear cylinder are connected. A socket explosion-proof door is installed at the connection of the socket rear cylinder; the socket rear charging core is fixedly arranged at the rear of the socket rear cylinder, the socket front charging core is located between the socket explosion-proof door and the socket rear charging core, the socket front charging core can move freely along the axial direction of the socket rear cylinder, and a socket reset spring is arranged between the socket front charging core and the socket rear charging core; the plug explosion-proof door and the socket explosion-proof door have the same structure, both of which include an insulating baffle, a movable baffle, a baffle reset spring, a spring limit block and a baffle limit plate; the movable baffle adopts a rectangular frame structure, and the baffle limit plate is fixedly arranged on the surface of the insulating baffle, and the movable baffle is arranged on the surface of the insulating baffle. The movable block is sleeved on the outer side of the block limit plate, and the movable block can move freely in a direction perpendicular to the block limit plate; the frame on one side of the movable block directly opposite to the block limit plate adopts a wedge-shaped structure, one end of the block return spring is fixedly connected to the outside of the wedge-shaped structure frame of the movable block, and the other end of the block return spring is fixedly connected to the spring limit block, and the spring limit block is fixedly connected to the surface of the insulating baffle; a telescopic guide rod is installed inside the block return spring; the inclined surface of the wedge-shaped structure frame of the movable block is in contact with the end of the plug charging core; a plug charging core passage hole is opened on the insulating baffle; In the uncharging state, the plug charging core passage hole is blocked by the moving block wedge-shaped structure frame; in the charging state, the plug charging core passage hole is free from the blocking of the moving block wedge-shaped structure frame; the socket front charging core comprises a front charging core insulating seat, an inner conductive copper ring of the front charging core and an outer conductive copper ring of the front charging core; the inner conductive copper ring of the front charging core is fixedly inserted on the insulating seat of the front charging core, one end of the inner conductive copper ring of the front charging core is flush with the front surface of the insulating seat of the front charging core, and the other end of the inner conductive copper ring of the front charging core extends out of the rear surface of the insulating seat of the front charging core; the outer conductive copper ring of the front charging core is fixedly inserted on the insulating seat of the front charging core, and the outer conductive copper ring of the front charging core is concentrically sleeved on the outside of the inner conductive copper ring of the front charging core, one end of the outer conductive copper ring of the front charging core is flush with the front surface of the insulating seat of the front charging core, and the other end of the outer conductive copper ring of the front charging core is flush with the rear surface of the insulating seat of the front charging core.

2. The explosion-proof automatic charging device for a mining inspection robot according to claim 1 is characterized in that: The rear charging core of the socket comprises a rear charging core insulating seat, an inner conductive copper ring of the rear charging core and an outer conductive copper ring of the rear charging core; the inner conductive copper ring of the rear charging core is fixedly inserted on the rear charging core insulating seat, one end of the inner conductive copper ring of the rear charging core is flush with the front surface of the rear charging core insulating seat, and the other end of the inner conductive copper ring of the rear charging core is flush with the rear surface of the rear charging core insulating seat; the outer conductive copper ring of the rear charging core is fixedly inserted on the rear charging core insulating seat, and the outer conductive copper ring of the rear charging core is concentrically sleeved on the outer side of the inner conductive copper ring of the rear charging core, one end of the outer conductive copper ring of the rear charging core is flush with the front surface of the rear charging core insulating seat, and the outer conductive copper ring of the rear charging core is flush with the rear surface of the rear charging core insulating seat; the inner conductive copper ring of the rear charging core and the outer conductive copper ring of the rear charging core are respectively conductively connected to the positive and negative poles of the power supply.

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