Magnetic suspension automatic stirring conveyor

Abstract

The present application belongs to the field of mechanical automation engineering, and specifically relates to a magnetic suspension automatic stirring conveyor, which comprises an ultrasonic liquid level sensor, a conveying water pump, a stirring barrel, a stirring mechanism and a waterproof motor, the waterproof motor is installed on the bottom surface of the stirring barrel, the output end of the waterproof motor is connected with the stirring mechanism, the stirring barrel is filled with a magnetic suspension solution, the stirring mechanism and the waterproof motor are both submerged below the liquid surface of the magnetic suspension solution, the waterproof motor drives the stirring mechanism to rotate, and the magnetic suspension solution is stirred through the stirring mechanism; the sidewall top of the stirring barrel is provided with the ultrasonic liquid level sensor for monitoring the liquid level of the magnetic suspension solution, the conveying water pump is detachably installed on the sidewall of the stirring barrel, and the bottom of the conveying water pump is submerged below the liquid surface of the magnetic suspension solution. The present application has the characteristics of simple structure, high power efficiency, continuously adjustable rotating speed, autonomous conveying and autonomous early warning, etc.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of mechanical automation engineering, in particular to a magnetic suspension automatic stirring conveyor. BACKGROUND

[0002] At present, with the development of science and technology and the wide application of robots, more and more fields realize "machine instead of people". When carrying out safety detection of storage tanks in the petrochemical industry, due to the complexity of the environment and the safety threat to people, robots gradually replace human work and realize the application of robots in the field of storage tank detection. Wall climbing robots can replace manual work to perform polishing and detection of storage tanks, which is safe and has a short construction period. Among them, when the detection robot performs magnetic powder detection, the proportion of water, magnetic powder and active agent in the magnetic suspension solution (this proportion is a known prior art) needs to be appropriate, and full stirring needs to be realized. The traditional stirring method is time-consuming and labor-intensive, cannot realize full stirring, and the magnetic powder is easy to precipitate. Therefore, a device capable of automatic stirring and automatic conveying is needed to realize the stirring and conveying of the magnetic suspension solution. SUMMARY

[0003] In order to realize automatic stirring and automatic conveying of the magnetic suspension solution when the detection robot performs weld detection, the purpose of the present application is to provide a magnetic suspension automatic stirring conveyor. The stirring speed of the magnetic suspension automatic stirring conveyor is adjustable, the automatic conveying of the magnetic suspension solution can be realized, and when the liquid level drops below the warning line, autonomous early warning can be realized.

[0004] The purpose of the present application is realized by the following technical solutions:

[0005] The present application comprises an ultrasonic liquid level sensor, a conveying water pump, a stirring barrel, a stirring mechanism and a waterproof motor, wherein the waterproof motor is installed on the bottom surface of the stirring barrel, the output end of the waterproof motor is connected with the stirring mechanism, the stirring barrel contains the magnetic suspension solution, the stirring mechanism and the waterproof motor are both immersed below the liquid surface of the magnetic suspension solution, the waterproof motor drives the stirring mechanism to rotate, and the magnetic suspension solution is stirred by the stirring mechanism; an ultrasonic liquid level sensor for monitoring the height of the liquid surface of the magnetic suspension solution is installed on the top of the side wall of the stirring barrel, the conveying water pump is detachably installed on the side wall of the stirring barrel, and the bottom of the conveying water pump is immersed below the liquid surface of the magnetic suspension solution.

[0006] The stirring mechanism comprises a vertical stirring roller, an inclined stirring roller, a connecting flange, a guide flange and a horizontal stirring roller, one end of the horizontal stirring roller is connected with the output end of a waterproof motor through the connecting flange, the other end of the horizontal stirring roller is fixedly connected with the guide flange, one end of the vertical stirring roller is rotationally connected with the guide flange, and the other end of the vertical stirring roller is suspended in the magnetic suspension solution; the two ends of the inclined stirring roller are connected with the horizontal stirring roller and the vertical stirring roller respectively.

[0007] The inclined stirring roller, the horizontal stirring roller and the vertical stirring roller form a right-angled triangle structure, and the right-angled triangle structure stirs the magnetic suspension solution.

[0008] The end of the other end of the horizontal stirring roller is spaced apart from the water conveying pump, and the initial position of the horizontal stirring roller is arranged at 90° with the water conveying pump.

[0009] The distance between the connecting position of the inclined stirring roller and the vertical stirring roller and the end of one end of the vertical stirring roller is greater than or equal to one half of the total length of the vertical stirring roller.

[0010] The distance between the connecting position of the inclined stirring roller and the horizontal stirring roller and the end of the other end of the horizontal stirring roller is greater than or equal to one half of the total length of the horizontal stirring roller.

[0011] The top of the side wall of the stirring barrel is provided with a flat plate, one end of the flat plate is fixedly connected to the top of the side wall of the stirring barrel, and the other end is provided with the ultrasonic liquid level sensor, the distance between the ultrasonic liquid level sensor and the side wall of the stirring barrel is greater than or equal to 50 mm, and the distance between the ultrasonic liquid level sensor and the liquid surface of the magnetic suspension solution is greater than or equal to 100 mm.

[0012] The height of the liquid surface of the magnetic suspension solution is at or above one half of the height of the water conveying pump.

[0013] The water conveying pump is suspended on the top of the side wall of the stirring barrel, and the suspension position is arranged at 90° with the ultrasonic liquid level sensor.

[0014] The advantages and positive effects of the present application are as follows:

[0015] 1. The device can realize automatic stirring and automatic conveying of the magnetic suspension solution, the automatic stirring speed of the device is adjustable, and different concentrations of the magnetic suspension solution can be fully stirred.

[0016] 2. The device has simple structure and high power efficiency, can realize liquid level early warning of the stirred solution, and prevents the water pump from being dry burned due to too low liquid level. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is an internal structure diagram of the present application;

[0018] Fig. 2 This is a schematic diagram of the stirring mechanism of the present invention;

[0019] Fig. 3 This is a top view of the structure of the present invention;

[0020] Wherein: 1 is an ultrasonic level sensor, 2 is a water pump, 3 is a mixing tank, 4 is a mixing mechanism, 5 is a waterproof motor, 6 is a vertical mixing roller, 7 is an inclined mixing roller, 8 is a connecting flange, 9 is a guide flange, 10 is a horizontal mixing roller, 11 is the surface of the magnetic suspension solution, and 12 is a flat plate. Detailed Implementation

[0021] The invention will now be described in further detail with reference to the accompanying drawings.

[0022] like Figs. 1-3 As shown, the present invention includes an ultrasonic level sensor 1, a water pump 2, a stirring tank 3, a stirring mechanism 4, and a waterproof motor 5. The waterproof motor 5 is installed on the bottom surface of the stirring tank 3, and its output end is connected to the stirring mechanism 4. The stirring tank 3 contains a magnetic suspension solution. Both the stirring mechanism 4 and the waterproof motor 5 are submerged below the surface 11 of the magnetic suspension solution. The waterproof motor 5 drives the stirring mechanism 4 to rotate, thereby stirring the magnetic suspension solution. An ultrasonic level sensor 1 for monitoring the level 11 of the magnetic suspension solution is installed on the top side wall of the stirring tank 3. The water pump 2 is detachably installed on the side wall of the stirring tank 3, and its bottom is submerged below the surface 11 of the magnetic suspension solution.

[0023] In this embodiment, the waterproof motor 5 is fixed to the center of the bottom of the mixing tank 3.

[0024] The stirring mechanism 4 in this embodiment includes a vertical stirring roller 6, an inclined stirring roller 7, a connecting flange 8, a guide flange 9, and a horizontal stirring roller 10. The connecting flange 8 is fixedly connected to the output end of the waterproof motor 5 and transmits the motor torque. One end of the horizontal stirring roller 10 is fixedly connected to the output end of the waterproof motor 5 through the connecting flange 8, and the other end of the horizontal stirring roller 10 is fixedly connected to the guide flange 9 by bolts. One end of the vertical stirring roller 6 is rotatably connected to the guide flange 9, and the other end of the vertical stirring roller 6 is suspended in the magnetic suspension solution. In this embodiment, one end of the vertical stirring roller 6 passes through the guide flange 9 and is rotatably connected by a retaining ring. The two ends of the inclined stirring roller 7 are connected to the horizontal stirring roller 10 and the vertical stirring roller 6, respectively. In this embodiment, the inclined stirring roller 7, the horizontal stirring roller 10, and the vertical stirring roller 6 form a right-angled triangle structure, which enables stirring of the magnetic suspension solution in all directions. The distance between the connection point of the inclined stirring roller 7 and the vertical stirring roller 6 and one end of the vertical stirring roller 6 is greater than or equal to half the total length of the vertical stirring roller 6. The distance between the connection point of the inclined stirring roller 7 and the horizontal stirring roller 10 and the other end of the horizontal stirring roller 10 is greater than or equal to half the total length of the horizontal stirring roller 10. In this embodiment, grooves are provided at half the length of the vertical stirring roller 6 and two-thirds the length of the horizontal stirring roller 10. The two ends of the inclined stirring roller 7 are connected to the grooves on the vertical stirring roller 6 and the horizontal stirring roller 10, respectively, to achieve a triangular stable structure. In this embodiment, a gap is left between the other end of the horizontal stirring roller 10 (i.e., the outermost edge of the horizontal stirring roller 10) and the water pump 2, that is, the outermost edge of the horizontal stirring roller 10 does not contact the water pump 2 and does not interfere with it. The initial position of the horizontal stirring roller 10 is set at 90° with the water pump 2.

[0025] In this embodiment, a plate 12 is provided on the top of the side wall of the mixing tank 3. One end of the plate 12 is fixed to the top of the side wall of the mixing tank 3, and an ultrasonic level sensor 1 is installed on the other end. The distance between the ultrasonic level sensor 1 and the side wall of the mixing tank 3 is greater than or equal to 50 mm, and the distance between the ultrasonic level sensor 1 and the surface of the magnetic suspension solution 11 is greater than or equal to 100 mm.

[0026] In this embodiment, the height of the magnetic suspension solution level 11 is at or above half the height of the water pump 2. The water pump 2 is suspended from the top of the side wall of the mixing tank 3, and the suspension position is set at 90° with the ultrasonic level sensor 1.

[0027] The ultrasonic level sensor 1, the water pump 2, and the waterproof motor 5 of this invention are all existing technologies.

[0028] The working principle of this invention is as follows:

[0029] After adding magnetic powder, water, and activator to the mixing tank 3 according to the existing technology ratio, the waterproof motor 5 is powered on. The waterproof motor 5 drives the mixing mechanism 4 to rotate around the center of the output shaft of the waterproof motor 5. The vertical mixing roller 6, the inclined mixing roller 7, and the horizontal mixing roller 10 in the mixing mechanism 4 drive the magnetic suspension solution to stir in various directions, so as not to generate large eddies. During the stirring process, the stirring speed can be controlled according to the actual situation, that is, the stirring speed is adjustable. After the stirring is uniform, the speed is reduced and the stirring is slowed down. At this time, the delivery water pump 2 is powered on to realize the pressurized delivery of the magnetic suspension solution. At the same time, the ultrasonic liquid level sensor 1 monitors the height of the magnetic suspension solution 11 in real time. If it is lower than the predetermined value, an alarm is issued to prevent the motor of the delivery water pump 2 from burning out. If the magnetic powder in the magnetic suspension solution precipitates after a period of time (30 minutes), the waterproof motor 5 is controlled to accelerate, driving the mixing mechanism 4 to quickly stir the magnetic suspension solution.

Claims

1. An automatic stirring and conveying machine for magnetic suspension liquid, characterized in that: The system includes an ultrasonic level sensor (1), a water pump (2), a stirring tank (3), a stirring mechanism (4), and a waterproof motor (5). The waterproof motor (5) is installed on the bottom surface of the stirring tank (3), and its output end is connected to the stirring mechanism (4). The stirring tank (3) contains a magnetic suspension solution. The stirring mechanism (4) and the waterproof motor (5) are both submerged below the surface (11) of the magnetic suspension solution. The waterproof motor (5) drives the stirring mechanism (4) to rotate, thereby stirring the magnetic suspension solution. An ultrasonic level sensor (1) for monitoring the level (11) of the magnetic suspension solution is installed on the top of the side wall of the stirring tank (3). The water pump (2) is detachably installed on the side wall of the stirring tank (3), and its bottom is submerged below the surface (11) of the magnetic suspension solution. The stirring mechanism (4) includes a vertical stirring roller (6), an inclined stirring roller (7), a connecting flange (8), a guide flange (9), and a horizontal stirring roller (10). One end of the horizontal stirring roller (10) is connected to the output end of the waterproof motor (5) through the connecting flange (8), and the other end of the horizontal stirring roller (10) is fixedly connected to the guide flange (9). One end of the vertical stirring roller (6) is rotatably connected to the guide flange (9), and the other end of the vertical stirring roller (6) is suspended in the magnetic suspension solution. The two ends of the inclined stirring roller (7) are respectively connected to the horizontal stirring roller (10) and the vertical stirring roller (6). The inclined stirring roller (7), together with the horizontal stirring roller (10) and the vertical stirring roller (6), form a right-angled triangle structure, which stirs the magnetic suspension solution. The vertical stirring roller (6) has a groove at one-half of its length and the horizontal stirring roller (10) has a groove at two-thirds of its length. The two ends of the inclined stirring roller (7) are connected to the grooves on the vertical stirring roller (6) and the horizontal stirring roller (10), respectively.

2. The automatic stirring and conveying machine for magnetic suspension fluid according to claim 1, characterized in that: There is a gap between the other end of the horizontal stirring roller (10) and the water pump (2), and the initial position of the horizontal stirring roller (10) is set at 90° with the water pump (2).

3. The automatic stirring and conveying machine for magnetic suspension fluid according to claim 1, characterized in that: The top of the side wall of the mixing tank (3) is provided with a plate (12). One end of the plate (12) is fixed to the top of the side wall of the mixing tank (3), and the other end is equipped with the ultrasonic liquid level sensor (1). The distance between the ultrasonic liquid level sensor (1) and the side wall of the mixing tank (3) is greater than or equal to 50 mm, and the distance between the ultrasonic liquid level sensor (1) and the surface of the magnetic suspension solution (11) is greater than or equal to 100 mm.

4. The automatic stirring and conveying machine for magnetic suspension fluid according to claim 1, characterized in that: The height of the magnetic suspension solution surface (11) is at or above half the height of the water pump (2).

5. The automatic stirring and conveying machine for magnetic suspension fluid according to claim 1, characterized in that: The water pump (2) is suspended on the top of the side wall of the mixing tank (3), and the suspension position is set at 90° with the ultrasonic liquid level sensor (1).

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