Magnetic suspension concentration detection device

Abstract

The utility model discloses a magnetic suspension concentration detection device. The detection device comprises a shell, a precipitation tube, a liquid storage tank, a first control valve and an injection tube, wherein the precipitation tube is vertically and fixedly mounted on the shell; the liquid storage tank is fixedly mounted on the shell and is positioned above the precipitation tube; the first control valve is arranged at the bottom of the liquid storage tank; the first camera is fixedly arranged on the shell and is over against the middle part of the precipitation tube, the second camera is fixedly arranged on the shell and is over against the lower end of the precipitation tube, and the electromagnetic coil assembly is fixedly arranged on the shell and is positioned under the precipitation tube.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of magnetic suspension liquid concentration detection, more specifically, to a kind of magnetic suspension liquid concentration detection device. BACKGROUND

[0002] The suspension liquid formed by mixing magnetic powder and carrier liquid in a certain proportion is called magnetic suspension liquid.The weight (g / L) of magnetic powder contained in each liter of magnetic suspension liquid or the volume (mL / 100mL) of magnetic powder precipitated from each 100mL of magnetic suspension liquid is called magnetic suspension liquid concentration.The former is called magnetic suspension liquid preparation concentration, and the latter is called magnetic suspension liquid precipitation concentration.Magnetic suspension liquid concentration has a great influence on the sensitivity of defect display, and the detection sensitivity is different at different concentrations.If the concentration is too low, it will affect the adsorption amount of magnetic powder in the magnetic field, resulting in unclear magnetic marks and missing defects;if the concentration is too high, it will retain a lot of magnetic powder on the surface of the workpiece, forming excessive background, and even covering the relevant display.Therefore, nondestructive testing practitioners must prepare magnetic suspension liquid with appropriate concentration according to the regulations in magnetic powder detection, so as to obtain clearer and more accurate detection results.

[0003] However, during the detection of the concentration of magnetic suspension liquid, manual liquid injection and sediment volume reading operations are required, resulting in a large deviation between the detection results and the actual values of the existing magnetic suspension liquid concentration detection device, and the natural sedimentation time is relatively long and the sedimentation is not sufficient, which affects the accuracy of the detection results. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of magnetic suspension liquid concentration detection device for the above defects of prior art.

[0005] The utility model solves the technical problems thereof by adopting the technical scheme of constructing a kind of magnetic suspension liquid concentration detection device.The detection device includes a housing, a sedimentation pipe fixed vertically installed on the housing, a liquid storage tank fixedly installed on the housing and located above the sedimentation pipe, a first control valve arranged at the bottom of the liquid storage tank, an injection pipe in communication with the first control valve and used for injecting magnetic suspension liquid into the sedimentation pipe, a first camera fixedly installed on the housing and facing the middle part of the sedimentation pipe, a second camera fixedly installed on the housing and facing the lower end of the sedimentation pipe, and an electromagnetic coil assembly fixedly installed on the housing and located directly below the sedimentation pipe.

[0006] In the magnetic suspension liquid concentration detection device described in the utility model, the detection device further includes a computing module connected to the first camera and the second camera through a data line signal;

[0007] Or, the detection device further includes a computing module connected to the first camera and the second camera through a wireless signal.

[0008] The detection device further comprises a black light lamp fixedly installed on the shell and used for emitting light to the precipitation tube.

[0009] The detection device further comprises a displacement driving assembly used for driving the injection pipe to be opposite to the top end of the precipitation tube or to be away from the top end of the precipitation tube.

[0010] The displacement driving assembly comprises a guide rail, a sliding block slidably arranged on the guide rail, a mounting plate fixedly installed on the sliding block, and a displacement cylinder used for driving the sliding block to move along the guide rail, and the mounting plate is provided with a through hole through which the injection pipe passes.

[0011] The shell is fixedly provided with a first support and a second support used for placing the precipitation tube, the first support is located at the top of the precipitation tube, the second support is located at the bottom of the precipitation tube, the first support is provided with a first positioning hole through which the top of the precipitation tube passes, and the second support is provided with a second positioning hole through which the bottom of the precipitation tube passes.

[0012] The top of the first support is further provided with a liquid receiving disc, and the liquid receiving disc is located at the side of the precipitation tube.

[0013] The detection device further comprises an injection pump installed on the shell and used for injecting the magnetic suspension into the liquid storage tank, and a second control valve arranged at the water outlet of the injection pump.

[0014] The first control valve and the second control valve are both pneumatic switching valves.

[0015] The magnetic suspension concentration detection device has the following beneficial effects: when the magnetic suspension concentration detection device is used, a certain amount (such as 100 ml) of magnetic suspension is injected into the liquid storage tank, then the first control valve is controlled to be opened, the magnetic suspension in the liquid storage tank is injected into the precipitation tube through the injection pipe, the electromagnetic coil assembly is started to accelerate the precipitation of the magnetic powder in the magnetic suspension, after a predetermined precipitation time, the first camera is controlled to shoot a photo of the middle part of the precipitation tube, which is transmitted to the computer to calculate the turbidity value of the liquid in the precipitation tube through the photo, at the same time, the second camera is controlled to shoot a photo of the height of the precipitate at the bottom of the precipitation tube, which is transmitted to the computer to calculate the volume of the precipitate in the precipitation tube through the photo, and the concentration of the magnetic suspension is calculated through the volume. In the application, the electromagnetic coil assembly is arranged at the bottom of the precipitation tube, and the precipitation of the magnetic powder is accelerated by magnetic attraction. The first camera and the second camera are arranged, and the automatic detection of the concentration of the magnetic suspension can be realized. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0017] Figure 1 This is a first structural schematic diagram of the magnetic suspension concentration detection device of this utility model;

[0018] Figure 2 This is a second structural schematic diagram of the magnetic suspension concentration detection device of this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] like Figure 1 , 2 As shown, in the first embodiment of the magnetic suspension concentration detection device of this utility model, the detection device 10 includes a housing 11, a sedimentation tube 12 vertically fixedly installed on the housing 11, a storage tank 13 fixedly installed on the housing 11 and located above the sedimentation tube 12, a first control valve 14 disposed at the bottom of the storage tank 13, an injection tube 15 communicating with the first control valve 14 and used to inject magnetic suspension into the sedimentation tube 12, a first camera 16 fixedly installed on the housing 11 and facing the middle of the sedimentation tube 12, a second camera 17 fixedly installed on the housing 11 and facing the lower end of the sedimentation tube 12, and an electromagnetic coil assembly 18 fixedly installed on the housing 11 and located directly below the sedimentation tube 12.

[0021] When using the magnetic suspension concentration detection device of this invention, a certain amount (e.g., 100ml) of magnetic suspension is injected into the storage tank 13. Then, the first control valve 14 is opened, and the magnetic suspension in the storage tank 13 is injected into the sedimentation tube 12 through the injection tube 15. The electromagnetic coil assembly 18 is activated to accelerate the precipitation of magnetic powder in the magnetic suspension. After a predetermined precipitation time, the first camera 16 is controlled to take a picture of the middle part of the sedimentation tube 12, which is transmitted to the computer to calculate the turbidity value of the liquid in the sedimentation tube 12. At the same time, the second camera 17 is controlled to take a picture of the sediment height at the bottom of the sedimentation tube 12, which is transmitted to the computer to calculate the volume of sediment in the sedimentation tube 12, and the concentration of the magnetic suspension is calculated from the volume. In this application, by setting the electromagnetic coil assembly 18 at the bottom of the sedimentation tube 12, the precipitation of magnetic powder can be accelerated by magnetic attraction. By setting the first camera 16 and the second camera 17, the automatic detection of the magnetic suspension concentration can be realized.

[0022] It can be understood that, in order to realize the intelligent detection and calculation of the concentration of the magnetic suspension, the detection device 10 further comprises a calculation module connected with the first camera 16 and the second camera 17 through a data line signal. Alternatively, the detection device 10 further comprises a calculation module connected with the first camera 16 and the second camera 17 through a wireless signal. Preferably, the calculation module is a computer.

[0023] The first camera 16 and the second camera 17 transmit the photographed photos to the calculation module through wireless or wired mode, and the calculation module calculates the concentration of the magnetic suspension according to the set predetermined program.

[0024] In order to achieve better shooting effect, the detection device 10 further comprises a black light lamp 19 fixedly installed on the shell 11 and used for emitting light to the precipitation pipe 12.

[0025] In order to prevent the injection pipe 15 from injecting excessive magnetic suspension, the detection device 10 further comprises a displacement driving assembly used for driving the injection pipe 15 to be opposite to or away from the top end of the precipitation pipe 12.

[0026] Specifically, the displacement driving assembly comprises a guide rail 20, a sliding block 21 slidably arranged on the guide rail 20, a mounting plate 22 fixedly installed on the sliding block 21, and a displacement cylinder 23 used for driving the sliding block 21 to move along the guide rail 20, and the mounting plate 22 is provided with a through hole 24 through which the injection pipe 15 passes.

[0027] Further, the shell 11 is fixedly provided with a first support 25 and a second support 26 used for placing the precipitation pipe 12, the first support 25 is located at the top of the precipitation pipe 12, and the second support 26 is located at the bottom of the precipitation pipe 12, the first support 25 is provided with a first positioning hole through which the top of the precipitation pipe 12 passes, and the second support 26 is provided with a second positioning hole through which the bottom of the precipitation pipe 12 passes.

[0028] In the embodiment, the top of the first support 25 is further provided with a liquid receiving disc 27, and the liquid receiving disc 27 is located at the side of the precipitation pipe 12.

[0029] When it is needed to inject the magnetic suspension into the precipitation pipe 12, the displacement cylinder 23 is controlled to drive the sliding block 21 to move along the guide rail 20 in a first direction, and the sliding block 21 drives the mounting plate 22 and the injection pipe 15 to move to the top of the precipitation pipe 12, at this time, the injection of the magnetic suspension is started. After the injection is completed, the displacement cylinder 23 is controlled to drive the sliding block 21 to move along the guide rail 20 in a second direction, and the sliding block 21 drives the mounting plate 22 and the injection pipe 15 to move to the top of the liquid receiving disc 27, at this time, the residual magnetic suspension remaining in the injection pipe 15 can flow into the liquid receiving disc 27, so as to prevent the excessive magnetic suspension from affecting the concentration detection.

[0030] Further, in order to facilitate automatic and quantitative injection of the magnetic suspension liquid, the detection device 10 further comprises an injection pump 28 installed on the shell and used for injecting the magnetic suspension liquid into the liquid storage tank 13, and a second control valve 29 arranged at the water outlet of the injection pump 28.

[0031] When the magnetic suspension liquid is injected into the liquid storage tank 13, the injection pump 28 and the second control valve 29 can be started, after the injection is completed, the second control valve 29 can be controlled to switch to other passages to stop injecting liquid into the liquid storage tank 13, and finally the injection pump 28 is stopped.

[0032] Preferably, the first control valve 14 and the second control valve 29 are both pneumatic switching valves.

[0033] In addition, in the present application, unless otherwise clearly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A magnetic suspension fluid concentration detection device, characterized by, The detection device comprises a housing, a sedimentation tube vertically fixedly installed on the housing, a liquid storage tank fixedly installed on the housing and located above the sedimentation tube, a first control valve arranged at the bottom of the liquid storage tank, an injection pipe in communication with the first control valve and used for injecting magnetic suspension into the sedimentation tube, a first camera fixedly installed on the housing and facing the middle part of the sedimentation tube, a second camera fixedly installed on the housing and facing the lower end of the sedimentation tube, and an electromagnetic coil assembly fixedly installed on the housing and located directly below the sedimentation tube.

2. The magnetic suspension concentration detection device according to claim 1, characterized by The detection device further comprises a computing module in signal connection with the first camera and the second camera through data lines. Alternatively, the detection device further comprises a computing module in signal connection with the first camera and the second camera through wireless signals.

3. The magnetic suspension concentration detection device according to claim 1, characterized by The detection device further comprises a black light lamp fixedly installed on the housing and used for emitting light to irradiate the sedimentation tube.

4. The magnetic suspension concentration detection device according to claim 1, characterized by The detection device further comprises a displacement driving assembly used for driving the injection pipe to face or be away from the top end of the sedimentation tube.

5. The magnetic suspension concentration detection device according to claim 4, characterized by The displacement driving assembly comprises a guide rail, a sliding block slidably arranged on the guide rail, a mounting plate fixedly installed on the sliding block, and a displacement cylinder used for driving the sliding block to move along the guide rail, and the mounting plate is provided with a through hole through which the injection pipe passes.

6. The magnetic suspension concentration detection device according to claim 5, wherein The housing is fixedly provided with a first support and a second support used for placing the sedimentation tube, the first support is located at the top of the sedimentation tube, the second support is located at the bottom of the sedimentation tube, the first support is provided with a first positioning hole through which the top of the sedimentation tube passes, and the second support is provided with a second positioning hole through which the bottom of the sedimentation tube passes.

7. The magnetic suspension concentration detection device according to claim 6, wherein The top of the first support is further provided with a liquid receiving disc, and the liquid receiving disc is located at the side of the sedimentation tube.

8. The magnetic suspension concentration detection apparatus according to claim 1, wherein The detection device further comprises an injection pump installed on the housing and used for injecting magnetic suspension into the liquid storage tank, and a second control valve arranged at the water outlet of the injection pump.

9. The magnetic suspension concentration detection device according to claim 8, characterized by Both the first control valve and the second control valve are pneumatic switching valves.

Images