Online intelligent detector for density of mud layer

Abstract

The utility model discloses an on-line intelligent detector for the density of a mud layer. The on-line intelligent detector comprises a detection sensor, a lifting mechanism and a guide mechanism, wherein the lifting mechanism is used for driving the detection sensor to lift to move mud layers at different depth positions up and down; the guide mechanism is arranged at a detection inlet and is used for guiding the lifting of the detection sensor; the cleaning mechanism is used for cleaning slurry on the detection sensor after each detection is completed; the cleaning mechanism comprises an annular cleaning pipe, the annular cleaning pipe is communicated with the water tank through a water pump, and a nozzle facing the direction of the detection sensor is arranged on the annular cleaning pipe; according to the utility model, the guide mechanism is arranged to ensure that the detection sensor is lifted stably, so that equipment damage caused by collision at a detection inlet is avoided; the annular cleaning pipe surrounding the periphery of the detection sensor is used for cleaning the detected sensor, attached mud is removed, the accuracy of each time of detection is effectively guaranteed, meanwhile, the detection sensor does not need to be taken out, and the detection efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of density detection equipment, in particular to an online intelligent detector for mud layer density. Background Art

[0002] In the mining production process, it is necessary to detect the state of mud layers at different depths. Generally, a radioactive density meter is used to penetrate into the mud layer for detection. During the lifting process of the detection sensor, if the speed is faster or it descends to a certain depth, the cable and sensor will have a large shake. The detection entrance is a circle about 20 larger than the diameter of the sensor. If the shake is large, the sensor will collide at the entrance during the lifting process, resulting in the sensor being unable to descend or lift out of the installation bottom surface. If a collision occurs, the detection sensor will also be damaged. At the same time, during the detection, mud will adhere to the detection sensor, affecting the subsequent detection results of the mud layer density. Taking out the sensor for cleaning and then installing the test will affect the detection efficiency. Utility Model Content

[0003] Technical purpose: In view of the above-mentioned deficiencies in the existing mud layer density detection, the utility model discloses an online intelligent mud layer density detector which can stably guide the lifting and lowering of the detection sensor and can clean the mud attached to the sensor surface.

[0004] Technical solution: To achieve the above technical objectives, the utility model adopts the following technical solution:

[0005] An online intelligent detector for mud layer density comprises a detection sensor, a lifting mechanism for driving the detection sensor to move up and down in mud layers at different depths, a guiding mechanism arranged at a detection entrance for guiding the lifting of the detection sensor; and a cleaning mechanism for cleaning the mud on the detection sensor after each detection is completed; the cleaning mechanism comprises an annular cleaning pipe, the annular cleaning pipe is connected to a water tank through a water pump, and a nozzle is arranged on the annular cleaning pipe facing the direction of the detection sensor.

[0006] Preferably, the guiding mechanism of the utility model comprises a base and a guiding support plate, wherein the base is arranged at the detection entrance and a center hole matching the detection entrance is opened in the center of the base; the guiding support plates are located on both sides of the center hole, and cable guiding wheels are installed on the guiding support plates, through which the movement of the cable connected to the detection sensor is guided; a detection sensor guide wheel is rotatably provided under the base, which guides the up and down movement of the detection sensor at the detection entrance.

[0007] Preferably, a guide wheel mounting frame is rotatably arranged on the guide support plate of the utility model, and a counterweight block is arranged on one side of the guide wheel mounting frame. The counterweight block applies torque to the rotation center of the guide wheel mounting frame on the guide support plate, so that the cable guide wheel abuts against the cable and maintains contact with the cable.

[0008] Preferably, a first proximity switch for detecting the position of the cable guide wheel is arranged on the guide support plate of the utility model, and the descending state of the detection sensor is determined by the detection signal of the first proximity switch.

[0009] Preferably, the base of the utility model is provided with a second proximity switch and a third proximity switch at both sides of the central hole for judging whether the detection sensor has risen into place, and the second proximity switch and the third proximity switch are offset from each other in the horizontal direction.

[0010] Preferably, the lifting mechanism of the utility model includes a frame, on which a reel and a control cabinet are arranged, the reel is rotatably connected to the frame, a servo motor is arranged in the control cabinet for driving the reel to rotate to lift and release the detection sensor, and the driving end of the servo motor is connected to the reel through a reducer.

[0011] Preferably, a controller for controlling the density detection process is provided in the control cabinet of the utility model, and the servo motor and the water pump are electrically connected to the controller.

[0012] Beneficial effects: The online intelligent detector for mud layer density provided by the utility model has the following beneficial effects:

[0013] 1. The utility model is provided with a guide mechanism to ensure that the detection sensor is lifted and lowered smoothly, thereby avoiding collision at the detection entrance and causing damage to the equipment.

[0014] 2. The utility model is provided with a cleaning mechanism, which uses an annular cleaning pipe surrounding the outer periphery of the detection sensor to clean the sensor after detection and remove the attached mud, thereby effectively ensuring the accuracy of each detection. At the same time, there is no need to remove the detection sensor, which can improve the detection efficiency.

[0015] 3. The cable guide wheel of the utility model is installed on the guide support plate through the guide wheel mounting frame, and the guide wheel mounting frame adopts a rotatable design. The torque provided by the counterweight block can keep the cable able to be clamped in the guide groove of the cable guide wheel, and the lifting and lowering are smoother; and when the detection sensor reaches the bottom or cannot continue to sink, the force of the cable on the cable guide wheel is reduced, and the counterweight block can drive the guide wheel mounting frame to rotate. The first proximity switch detects that the position of the cable guide wheel has changed, thereby providing a signal for the lifting and lowering control of the detection sensor, and lifting the detection sensor.

[0016] 4. The base of the utility model is provided with a second proximity switch and a third proximity switch on the left and right sides of the center hole, which can be used to determine whether the detection sensor is lifted or lowered into place, and the two proximity switches are staggered in the horizontal direction. Even if the sensor swings and displaces, the position of the sensor can be accurately obtained to ensure the accuracy of the detection.

[0017] 5. The utility model utilizes a servo motor to drive the drum to rotate, thereby realizing the pulling and releasing of the cable, and can accurately control the detection position depth of the detection sensor. In conjunction with the controller, it can automatically realize the mud layer density detection at each level. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0019] Figure 1 This is the overall structure diagram of the utility model;

[0020] Figure 2 This is the structural diagram of the lifting mechanism of the utility model;

[0021] Figure 3 This is the structural diagram of the guide mechanism of the utility model;

[0022] Figure 4 This is the structural diagram of the cleaning mechanism of the utility model;

[0023] Among them, 1-detection sensor, 2-lifting mechanism, 3-guide mechanism, 4-cleaning mechanism, 5-annular cleaning pipe, 6-water pump, 7-water tank, 8-nozzle, 9-base, 10-guide support plate, 11-cable guide wheel, 12-cable, 13-detection sensor guide wheel, 14-guide wheel mounting frame, 15-counterweight, 16-first proximity switch, 17-second proximity switch, 18-third proximity switch, 19-frame, 20-reel, 21-control cabinet, 22-servo motor, 23-reducer, 24-controller. DETAILED DESCRIPTION

[0024] Reference will now be made in detail to embodiments of the present disclosure, one or more examples of which are set forth herein below. Each embodiment and example is provided by explaining the apparatus, composition and materials of the present disclosure, rather than limiting. On the contrary, the following description provides a convenient illustration of an exemplary embodiment for implementing the present disclosure. In fact, it will be clear to those skilled in the art that various modifications and variations can be made in the teachings of the present disclosure without departing from the scope or spirit of the present disclosure. For example, a feature shown or described as a part of an embodiment can be used in conjunction with another embodiment to produce yet another embodiment. It is expected that the present disclosure covers such modifications and variations within the scope of the appended claims and their equivalents. Other objects, features and aspects of the present disclosure are disclosed in or clear from the following detailed description. It will be understood by those of ordinary skill in the art that this discussion is only a description of exemplary embodiments and is not intended to limit the wider aspects of the present disclosure.

[0025] like Figure 1-Figure 4 As shown, the utility model discloses an online intelligent detector for mud layer density, comprising a detection sensor 1, a lifting mechanism 2 for driving the detection sensor 1 to lift and lower to move mud layers at different depths, a guiding mechanism 3 arranged at the detection entrance for guiding the lifting of the detection sensor 1; and a cleaning mechanism 4 for cleaning the mud on the detection sensor 1 after each detection is completed; the cleaning mechanism 4 comprises an annular cleaning pipe 5, the annular cleaning pipe 5 is connected to a water tank 7 through a water pump 6, and a nozzle 8 facing the direction of the detection sensor 1 is arranged on the annular cleaning pipe 5.

[0026] In a specific embodiment, the guide mechanism 3 of the utility model includes a base 9 and a guide support plate 10, wherein the base 1 is arranged at the detection entrance and a center hole matching the detection entrance is opened in the center of the base 9; the guide support plate 10 is located on both sides of the center hole, and a cable guide wheel 11 is installed on the guide support plate 10, and the movement of the cable 12 connected to the detection sensor 1 is guided by the cable guide wheel 11; a detection sensor guide wheel 13 is rotatably provided under the base 9 to guide the up and down movement of the detection sensor 1 at the detection entrance.

[0027] Since the internal state of the mud layer cannot be accurately detected, when the detection sensor drops to the bottom or cannot drop, if the cable is released continuously, the cable will be separated from the cable guide wheel 11, affecting subsequent lifting operations and making it impossible to continue density detection.

[0028] To this end, a guide wheel mounting frame 14 is rotatably provided on the guide support plate 10 of the utility model, and a counterweight block 15 is provided on one side of the guide wheel mounting frame 14. The counterweight block 15 applies torque to the rotation center of the guide wheel mounting frame 14 on the guide support plate 10, so that the cable guide wheel 11 abuts against the cable 12 and maintains contact with the cable 12. A first proximity switch 16 for detecting the position of the cable guide wheel 11 is provided on the guide support plate 10, and the descending state of the detection sensor 1 is judged by the detection signal of the first proximity switch 16.

[0029] By utilizing the pulling force on the cable 12 generated when the detection sensor 1 moves, the guide wheel mounting frame 14 is set to be rotatable, and the counterweight block 15 is used to achieve balance, which can not only ensure the smooth movement during the lifting process, but also when the detection sensor 1 cannot move downward, the change in the force between the cable 12 and the cable guide wheel 11 can be used to judge the state of the detection sensor 1, and in conjunction with the first proximity switch 16, it can promptly discover the situation that the detection sensor 1 touches the bottom or cannot move downward.

[0030] In order to locate the initial position of the detection sensor so as to correspond the detection position depth and density, the base 9 of the utility model is provided with a second proximity switch 17 and a third proximity switch 18 on both sides of the center hole for judging whether the detection sensor 1 has risen into place. The second proximity switch 17 and the third proximity switch 18 are staggered with each other in the horizontal direction. The staggered design structure can cover the area range of the detection sensor at the detection entrance and accurately detect the position of the detection sensor 1.

[0031] The lifting mechanism 2 of the utility model includes a frame 19, on which a reel 20 and a control cabinet 21 are arranged. The reel 20 is rotatably connected to the frame 19. A servo motor 22 is arranged in the control cabinet 21 for driving the reel 20 to rotate to lift and release the detection sensor 1. The driving end of the servo motor 22 is connected to the reel 20 through a reducer 23. A controller 24 for controlling the density detection process is arranged in the control cabinet 21. The servo motor 22, the water pump 6 and the proximity switch are all electrically connected to the controller 24, so that the detection process can be controlled by the control program built into the controller 24.

[0032] When the utility model is in use, the signals of the second proximity switch 17 and the third proximity switch 18 are used to confirm whether the detection sensor is at the initial position of the detection entrance, and the detection starting point is determined. Then, the servo motor 22 drives the reel 20 to rotate, releases the cable 12, and the detection sensor moves downward under the action of its own weight. The downward movement distance of the detection sensor is controlled by the number of rotations of the servo motor 22, and the density of the mud layer at the corresponding depth position is detected. After a single detection is completed, the servo motor 22 rotates in the opposite direction to pull the detection sensor 1 to the detection entrance again, start the cleaning mechanism 4, and use the nozzle 8 to clean the surface of the detection sensor 1, so that it can move downward again for density detection; when the detection sensor 1 reaches the bottom or cannot move further downward, the force applied by the cable 12 to the guide wheel mounting frame 14 through the cable guide wheel 11 is reduced or disappears. Under the action of the counterweight block 15, the guide wheel mounting frame 14 rotates, the first proximity switch 16 detects the position change of the cable guide wheel 11, and the controller 24 controls the servo motor 22 to rotate, pulls up the detection sensor, and completes the detection of the mud layer density at that position.

Claims

1. An online intelligent detector for mud layer density, characterized in that: The invention comprises a detection sensor (1), a lifting mechanism (2) for driving the detection sensor (1) to move up and down to move mud layers at different depths, a guide mechanism (3) arranged at a detection entrance for guiding the detection sensor (1) to move up and down; and a cleaning mechanism (4) for cleaning mud on the detection sensor (1) after each detection is completed; the cleaning mechanism (4) comprises an annular cleaning pipe (5), the annular cleaning pipe (5) is connected to a water tank (7) via a water pump (6), and a nozzle (8) is arranged on the annular cleaning pipe (5) facing the direction of the detection sensor (1).

2. The on-line intelligent detector for mud layer density according to claim 1 is characterized in that: The guide mechanism (3) comprises a base (9) and a guide support plate (10); the base (9) is arranged at the detection entrance and a center hole matching the detection entrance is provided at the center of the base (9); the guide support plate (10) is located on both sides of the center hole, and a cable guide wheel (11) is installed on the guide support plate (10), and the movement of a cable (12) connected to the detection sensor (1) is guided by the cable guide wheel (11); and a detection sensor guide wheel (13) is rotatably provided below the base (9) to guide the up and down movement of the detection sensor (1) at the detection entrance.

3. The on-line intelligent detector for mud layer density according to claim 2 is characterized in that: A guide wheel mounting frame (14) is rotatably disposed on the guide support plate (10), and a counterweight (15) is disposed on one side of the guide wheel mounting frame (14). The counterweight (15) applies torque to the rotation center of the guide wheel mounting frame (14) on the guide support plate (10), so that the cable guide wheel (11) abuts against the cable (12) and maintains contact with the cable (12).

4. The on-line intelligent detector for mud layer density according to claim 3 is characterized in that: The guide support plate (10) is provided with a first proximity switch (16) for detecting the position of the cable guide wheel (11), and the descending state of the detection sensor (1) is determined by the detection signal of the first proximity switch (16).

5. The on-line intelligent detector for mud layer density according to claim 4 is characterized in that: The base (9) is provided with a second proximity switch (17) and a third proximity switch (18) at both sides of the central hole for judging whether the detection sensor (1) has risen to a certain position, and the second proximity switch (17) and the third proximity switch (18) are mutually offset in the horizontal direction.

6. The on-line intelligent detector for mud layer density according to claim 1 is characterized in that: The lifting mechanism (2) comprises a frame (19), a reel (20) and a control cabinet (21) are arranged on the frame (19), the reel (20) is rotatably connected to the frame (19), a servo motor (22) is arranged in the control cabinet (21) and is used to drive the reel (20) to rotate to lift and release the detection sensor (1), and a driving end of the servo motor (22) is connected to the reel (20) via a reducer (23).

7. The on-line intelligent detector for mud layer density according to claim 6 is characterized in that: A controller (24) for controlling the density detection process is provided in the control cabinet (21), and the servo motor (22) and the water pump (6) are both electrically connected to the controller (24).

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