Visual lubricating grease detecting and sampling equipment

Abstract

The utility model discloses a visual lubricating grease detection sampling equipment, including controller, sampling arm, sampling head, camera shooting subassembly, sample collection module and detection module, the sampling arm vertically extends from the front side part of controller, controller is equipped with control module and display screen, camera shooting subassembly is connected with the input end of display screen, the sample collection module is connected with the detection module, and the detection module is connected with the sampling head. The sample collection module and the detection module are integrated on the controller, the sample collection module comprises a negative pressure pump, a sampling bottle and a one-way valve, and the detection module comprises a detection bottle and a sensor; according to the sampling equipment, the camera shooting assembly is arranged at the tail end of the sampling arm so as to visually collect lubricating grease, grease samples can be accurately collected in a dark narrow space, the collection accuracy is improved, the sampling needle can be contracted for sampling, and the representativeness, uniformity and consistency of the samples are guaranteed; a sample collection module and a detection module are integrated in the controller, and collection and online detection of samples are achieved at the same time, so that key parameters of the samples are detected and analyzed in real time to serve as a field decision basis.

Description

Technical Field

[0001] The utility model relates to the technical field of lipid substance sampling, in particular to a visual lubricating grease detection sampling device. Background Art

[0002] Lubrication management of equipment is one of the core aspects of maintenance of the core components of the equipment, and its good lubrication status is the key to the normal operation of the equipment. Therefore, regular testing of lubricants is currently the most commonly used method of quality control. In order to ensure the accuracy of laboratory testing, it is necessary to ensure the consistency, uniformity and representativeness of the test samples. However, the current equipment operation and maintenance personnel generally lack awareness of the importance of sampling, there is no unified sampling process and method, and the samples obtained are not representative, so that the final test results cannot truly represent the lubrication status of the entire equipment, resulting in misunderstanding of the equipment's lubrication status, affecting equipment maintenance, delaying subsequent processing, and causing huge economic losses.

[0003] For the lubrication management of equipment such as wind turbines, rail transit, environmental protection, pipelines, and large mechanical parts, the equipment disassembly operation is complicated and the accuracy of the sampling and detection positions cannot be guaranteed; and the lubricant monitoring technology mainly adopts an offline detection method that takes samples on site, conducts laboratory tests, and then feeds back the test results. Due to the long offline detection test cycle, abnormal changes in the equipment lubricant status are often not discovered in real time, there is a lag in information feedback, and the fault warning effect is not good.

[0004] Therefore, based on the characteristics of on-site operation and maintenance of the equipment, the utility model designs an efficient and high-quality visual sampling device, and can display the test results in real time, so as to provide guidance for lubrication management operations on site in real time. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a visual lubricating grease detection sampling device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A visual lubricating grease detection sampling device, characterized in that it comprises a controller, a sampling arm, a sampling head, a camera assembly, a sample collection module and a detection module, the sampling arm vertically extends from the front side of the controller, the controller is equipped with a control module and a display screen, the camera assembly is connected to the input end of the display screen, and the sample collection module and the detection module are integrated on the controller; wherein;

[0008] The sampling head includes a needle seat, a sampling needle and a driving mechanism. The needle seat is arranged at the end of the sampling arm, the driving mechanism is arranged in the inner cavity of the needle seat, the sampling needle is driven by the driving mechanism and can be retracted and arranged on the needle seat, and the needle head of the sampling needle extends out of the end of the needle seat. The camera assembly is used to collect the environmental image of the front end of the sampling needle. The camera assembly is installed on the end of the needle seat and is located beside the sampling needle. The control module is electrically connected to the driving mechanism;

[0009] The sample collection module includes a negative pressure pump, a sampling bottle and a one-way valve. The sampling bottle is connected to the negative pressure pipeline through a second sample suction branch. The negative pressure pump and the one-way valve are arranged on the negative pressure pipeline. The one-way valve is located at the rear end of the negative pressure pump. A first solenoid valve is arranged on the negative pressure pipeline. The first solenoid valve is a two-position three-way valve. Its P port is connected to the negative pressure pipeline, and its A port is connected to the second sample suction branch. The sampling bottle is connected to the sampling needle through a sampling pipeline inserted in the sampling arm. The control module is electrically connected to the negative pressure pump and the first solenoid valve;

[0010] The detection module includes a detection bottle and a sensor. The detection bottle is connected to the negative pressure pipeline through the first sample suction branch, the first sample suction branch is connected to the B port of the first solenoid valve, the detection bottle is connected to the sampling bottle through the filling branch, and a sensor for detecting the performance of the oil is arranged in the detection bottle. The sensor feeds back the detection signal to the control module, and the control module inputs the parameter value and displays it on the display screen.

[0011] Preferably, the sampling branch includes a first sampling branch and a second sampling branch, and the two are connected to the sampling pipeline through a second solenoid valve. The second solenoid valve is a two-position three-way valve, its P port is connected to the second sampling branch, its A port is connected to the sampling pipeline, and its B port is connected to the first sampling branch.

[0012] More preferably, the sampling arm includes a first telescopic arm, a second telescopic arm, a first rotation joint and a second rotation joint, one end of the first telescopic arm is connected to the controller, and the other end of the first telescopic arm is connected to one end of the second telescopic arm through the first rotation joint, the other end of the second telescopic arm is connected to one end of the second rotation joint, and the needle seat is arranged on the other end of the second rotation joint.

[0013] Further preferably, the first telescopic arm and the second telescopic arm are three-stage electric screw telescopic arms, which are electrically connected to the control module; the first rotary joint and the second rotary joint are electric rotary joints, which are electrically connected to the control module; the two rear corners of the controller extend to form two hand-held parts, on which are provided a rotation button and a telescopic button for controlling the sampling arm, which are respectively used to execute the telescopic action of the first telescopic arm and the second telescopic arm, and the rotation action of the first rotary joint and the second rotary joint.

[0014] Further preferably, two support wheels are provided on the first rotating joint, and the two support wheels are rotatably mounted outside the connecting ear of the first rotating joint and are symmetrically located on both sides of the central axis of the first telescopic arm.

[0015] Further preferably, the driving mechanism includes a sampling motor, a guide rod and a synchronization disk. There are at least two guide rods, which are arranged parallel to the central axis of the needle seat. The sampling motor is equipped with a screw rod, and the end of the screw rod is threadedly connected to the synchronization disk to drive the synchronization disk to slide along the guide rod. The sampling needle is fixed on the synchronization disk and is offset to one side of the central axis of the needle seat.

[0016] Further preferably, the sensor is a five-in-one sensor, on which a dynamic viscosity detection unit, a density detection unit, a trace moisture detection unit, a water activity detection unit and a temperature detection unit are provided.

[0017] Compared with the prior art, the visual lubricating grease detection and sampling device of the utility model has the following beneficial effects:

[0018] 1. The sampling device increases the sampling range through the sampling arm, and a camera component is configured at the end to visually collect lubricating grease, so as to accurately collect grease samples in dark and narrow spaces, improve the collection accuracy, and ensure the representativeness, uniformity and consistency of the collected samples; the sampling needle can be retracted for sampling, and the sample collection depth can be controlled, which helps to obtain more representative samples and avoid bumping the sampling needle during the sampling process;

[0019] 2. The controller integrates a sample collection module and a detection module, and uses the same negative pressure pump to simultaneously realize sample collection and online detection, so as to perform real-time detection and analysis on the key performance parameters of the collected samples or the performance parameters that cannot be detected offline, and can facilitate the online acquisition of grease performance information as a basis for on-site decision-making. After collection, the collected samples can be sealed and sent to the laboratory for more complex and in-depth testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the sampling device of the utility model;

[0021] Figure 2 This is a schematic diagram of the sampling liquid circuit of the utility model;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the controller of the present utility model.

[0023] In the figure: 1. controller; 10. display screen; 11. control button; 12. measuring window; 13. hand-held part; 131. rotation button; 132. telescopic button; 14. negative pressure pump; 15. one-way valve; 16. first solenoid valve; 17. detection bottle; 171. sensor; 17a. first sample filling branch; 17b. first sample suction branch; 18. sampling bottle; 18a. second sample filling branch; 18b. second sample suction branch; 19. second solenoid valve; 2. first telescopic arm; 3. first rotating joint; 4. support wheel; 5. second telescopic arm; 6. second rotating joint; 7. sampling head; 71. sampling needle; 72. needle seat; 73. synchronization disk; 74. guide rod; 75. sampling motor 75; 7a. sampling pipeline; 8. camera assembly; 9. sealing groove cover. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only the best embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] This embodiment provides a visual lubricating grease detection and sampling device for use in lubrication management operations of large equipment such as wind turbines, rail transportation, environmental protection, pipelines, and large mechanical parts. Figure 1-Figure 3 As shown, it is a portable integrated sampling device, including a controller 1, a sampling arm, a sampling head 7, a camera assembly 8, a sample collection module and a detection module. The sampling arm extends vertically from the front side of the controller 1 to expand the sampling radius of a narrow area. In order to understand the sampling environment in a narrow area and collect oil samples more accurately, the sampling head 7 is arranged at the end of the sampling arm, and the front end of the sampling head 7 is installed with a camera assembly 8. In order to improve the passability of the sampling arm, the camera assembly 8 should be installed parallel to the sampling arm. The camera assembly 8 is connected to the input end of the display screen 10 on the panel of the controller 1, and the environmental video recorded by the camera assembly 8 is played in real time to locate the best sampling position; the sample collection module and the detection module are integrated on the controller 1; wherein;

[0026] like Figure 2As shown, the sampling head 7 includes a needle seat 72, a sampling needle 71 and a driving mechanism. The needle seat 72 is arranged at the end of the sampling arm, and the driving mechanism is arranged in the inner cavity of the needle seat 72, which drives the sampling needle 71 to extend and retract along the axial direction of the needle seat 72, and controls the distance that the needle head of the sampling needle 71 extends out of the end of the needle seat 72 to control the sampling depth. In order to observe the sampling action of the sampling needle 71 in real time, the camera assembly 8 is installed at the end of the needle seat 72 and is located beside the sampling needle 71. In the path exploration stage, the sampling needle 71 is retracted to the rear end of the camera assembly 8. In the sampling stage, the sampling needle 71 extends from the front end of the camera assembly 8 and extends into the front grease to a certain depth to collect the grease sample. The sampling needle 71 is connected to the flexible sampling pipeline 7a, and the grease sample is poured into the sampling bottle 18 through the sampling pipeline 7a. The sampling pipeline 7a is penetrated in the sampling arm; wherein, in order to shorten the length of the sampling head 7, specifically, the driving mechanism adopts a motor screw drive mode, and again refer to Figure 2 The driving mechanism includes a sampling motor 75, a guide rod 74 and a synchronous disk 73. The sampling needle 71 is fixed on the synchronous disk 73. There are at least two guide rods 74, which are arranged parallel to the central axis of the needle seat 72. The end of the screw rod is threadedly connected to the synchronous disk 73, and the synchronous disk 73 is driven to slide along the guide rod 74, so that the sampling needle 71 is extended and retracted for sampling. The sampling needle 71 is offset to one side of the central axis of the needle seat 72. The control module is electrically connected to the sampling motor 75, and the sampling needle 71 is driven to extend and retract through the sampling button on the panel of the controller 1;

[0027] In order to improve the reliability of detection and collect more oil and fat samples to be tested, the sampling equipment is provided with a sample collection module for centralized collection. The sample collection module includes a negative pressure pump 14, a sampling bottle 18 and a one-way valve 15. The sampling bottle 18 is connected with a second sample filling branch 18a and a second sample suction branch 18b. The pipeline port of the second sample suction branch 18b should be higher than the oil and fat sample liquid height, which is used to generate a negative pressure environment in the sampling bottle 18. The pipeline port of the second sample filling branch 18a extends to the bottom of the sampling bottle 18 to inject the oil and fat sample. The second sample suction branch 18b is connected to the negative pressure pipeline through the first solenoid valve 16, the negative pressure pump 14 and the one-way valve 15 are arranged on the negative pressure pipeline, the one-way valve 15 is located at the rear end of the negative pressure pump 14, and the first solenoid valve 16 is arranged on the negative pressure pipeline. The first solenoid valve 16 is a two-position three-way valve, and its P port is connected to the negative pressure pipeline, and the A port is connected to the second sample suction branch 18b. The second sample filling branch 18a of the sampling bottle 18 is connected to the sampling pipeline 7a through the second solenoid valve 19. The sampling pipeline 7a is penetrated in the sampling arm and connected to the sampling needle 71;

[0028] The detection module includes a detection bottle 17 and a sensor 171. Similarly, a first sample filling branch 17a and a first sample suction branch 17b are connected on the detection bottle 17. The first sample suction branch 17b is connected to the negative pressure pipeline through the first solenoid valve 16, and the first sample suction branch 17b is connected to the B port of the first solenoid valve 16. Similarly, the second solenoid valve 19 is a two-position three-way valve. The first sample filling branch 17a is connected to the B port of the second solenoid valve 19, the second sample filling branch 18a is connected to the P port of the second solenoid valve 19, and the sampling pipeline 7a is connected to the A port of the second solenoid valve 19. The control module is electrically connected to the first solenoid valve 16 and the second solenoid valve 19 respectively; in the sampling state, the second sample suction branch 18b and the negative pressure pipeline of the sampling bottle 18 are cut through, and the second sample filling branch 18a and the sampling pipeline 7a are connected to the negative pressure sampling circuit of the sampling bottle 18; the oil sample in the sampling bottle 18 is used for online detection to filter out The air mixed in during the sampling process and the influence of unstable flow rate and different sample distribution on the test results during the sampling process are reduced. In the test state, the test sampling circuit of the test bottle 17 is cut through, including the first sample suction branch 17b and the negative pressure pipeline, as well as the second sample filling branch 18a and the first sample filling branch 17a, and the oil sample part after multi-point sampling and mixing in the sampling bottle 18 is sucked into the test bottle 17. The sensor 171 arranged in the test bottle 17 detects the performance parameters of the oil sample. The sensor 171 adopts a five-in-one viscosity sensor 171, and collects five key performance parameters of the oil sample online, including dynamic viscosity, density, trace moisture, water activity and temperature. The sensor 171 feeds back the detection signals of the five performances to the control module, and the control module inputs the parameter values ​​to the display screen 10 for display. The test personnel can obtain real-time performance parameters online to make on-site decisions.

[0029] The sampling device is of a portable design, in which the controller 1 serves not only as a carrier of the control module but also as a manual control handle; a display screen 10 provided on the controller panel on the front of the controller 1 displays the sampling front-end image, and a control button 11 is provided below the display screen 10, including a sampling needle 71 extension button 132, a sampling button for starting the negative pressure pump 14 and cutting through the negative pressure sampling circuit, and a detection button for cutting through the detection sampling circuit and starting the negative pressure pump 14; the chamfered end surface of the rear side of the controller 1 extends to form two horn-shaped hand-held parts 13, which are convenient for hand-held control of the position of the sampling arm The controller 1 internally integrates a sample collection module, a detection module, a first solenoid valve 16 and a second solenoid valve 19, wherein the detection bottle 17 and the sampling bottle 18 are threadedly screwed into the bottling slot provided on the back of the controller 1, and the slot opening is sealed by the sealing slot cover plate 9 to further position the bottle body, and the sampling bottle 18 is a disposable consumable. After collecting a sufficient amount of oil sample, it is disassembled and sealed for offline sample detection. Transparent measuring windows 12 are provided on the left and right sides of the controller 1, and the oil sample liquid height in the detection bottle 17 and the sampling bottle 18 can be observed for sampling control.

[0030] In this embodiment, there are often complex paths in narrow spaces during on-site sampling operations. In order to avoid disassembly of the equipment to be inspected as much as possible, the sampling arm is designed as a multi-dimensional variable structure to flexibly adapt to complex sampling paths, such as Figure 1 As shown, the sampling arm includes a first telescopic arm 2, a second telescopic arm 5, a first rotating joint 3 and a second rotating joint 6. One end of the first telescopic arm 2 is connected to the controller 1 and can rotate relatively. This is the first-dimensional rotation adjustment. After the angle adjustment of the first telescopic arm 2 is manually completed, the connection between it and the controller 1 is locked by the locking sleeve. The other end of the first telescopic arm 2 is connected to one end of the second telescopic arm 5 through the first rotating joint 3 to achieve lateral telescopic adjustment and second-dimensional rotation adjustment. The other end of the second telescopic arm 5 is provided with an electric rotating head. The second rotating joint 6 is installed on the electric rotating head and connected to the needle The needle seat 72 is used to rotate and adjust the sampling angle of the sampling needle on the needle seat 72, and realize the third-dimensional rotation adjustment of the sampling arm; the first telescopic arm 2 and the second telescopic arm 5 are three-stage electric screw telescopic arms, and the first rotating joint 3 and the second rotating joint 6 are electric rotating joints, and all four are electrically connected to the control module; the two hand-held parts 13 are provided with a telescopic button 132 for controlling the telescopic movement of the first telescopic arm 2 and the second telescopic arm 5, a rotating button 131 for controlling the rotation of the first rotating joint 3 and the electric rotating head, and an angle adjustment button for controlling the second rotating joint 6 to adjust the sampling angle is arranged on the side of the right hand-held part 13.

[0031] In order to make it easier to manipulate the sampling arm and to assist in supporting the second telescopic arm 5 that is bent at an angle when the first telescopic arm 2 is extended, two support wheels 4 are provided on the first rotary joint 3. The two support wheels 4 can be rotatably installed outside the connecting ear of the first rotary joint 3 and are symmetrically located on both sides of the central axis of the first telescopic arm 2.

[0032] The directional words "inside", "outside", "upper", "lower", "side", "end", "horizontal" and so on mentioned in this article are based on Figure 1-Figure 3 The coordinates or orientations shown in . These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation;

[0033] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the terms "on" and "inside" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A visual lubricating grease detection sampling device, characterized in that: It includes a controller, a sampling arm, a sampling head, a camera assembly, a sample collection module and a detection module, wherein the sampling arm extends vertically from the front side of the controller, the controller is equipped with a control module and a display screen, the camera assembly is connected to the input end of the display screen, and the sample collection module and the detection module are integrated on the controller; wherein, The sampling head includes a needle seat, a sampling needle and a driving mechanism, wherein the needle seat is arranged at the end of the sampling arm, the driving mechanism is arranged in the inner cavity of the needle seat, the sampling needle is driven by the driving mechanism and can be retracted and arranged on the needle seat, the needle head of the sampling needle extends out of the end of the needle seat, the camera assembly is installed on the end of the needle seat and is located beside the sampling needle, and is used to collect the environmental image of the front end of the sampling needle, and the control module is electrically connected to the driving mechanism; The sample collection module includes a negative pressure pump, a sampling bottle and a one-way valve, the sampling bottle is connected to the negative pressure pipeline through a second sample suction branch, the negative pressure pump and the one-way valve are arranged on the negative pressure pipeline, the one-way valve is located at the rear end of the negative pressure pump, a first solenoid valve is arranged on the negative pressure pipeline, the first solenoid valve is a two-position three-way valve, its P port is connected to the negative pressure pipeline, and its A port is connected to the second sample suction branch, the sampling bottle is connected to the sampling needle through a sampling pipeline penetrating the sampling arm, and the control module is electrically connected to the negative pressure pump and the first solenoid valve; The detection module includes a detection bottle and a sensor. The detection bottle is connected to the negative pressure pipeline through a first sample suction branch, and the first sample suction branch is connected to the B port of the first solenoid valve. The detection bottle is connected to the sampling bottle through a sample filling branch. A sensor for detecting oil performance is arranged in the detection bottle. The sensor feeds back the detection signal to the control module, and the control module inputs the parameter value to the display screen for display.

2. The visual lubricating grease detection sampling device according to claim 1 is characterized in that: The sample filling branch includes a first sample filling branch and a second sample filling branch, and the two are connected to the sampling pipeline through a second solenoid valve. The second solenoid valve is a two-position three-way valve, whose P port is connected to the second sample filling branch, its A port is connected to the sampling pipeline, and its B port is connected to the first sample filling branch.

3. The visual lubricating grease detection sampling device according to claim 2 is characterized in that: The sampling arm includes a first telescopic arm, a second telescopic arm, a first rotating joint and a second rotating joint. One end of the first telescopic arm is connected to the controller, and the other end of the first telescopic arm is connected to one end of the second telescopic arm through the first rotating joint. The other end of the second telescopic arm is connected to one end of the second rotating joint. The needle seat is arranged on the other end of the second rotating joint.

4. The visual lubricating grease detection sampling device according to claim 3 is characterized in that: The first telescopic arm and the second telescopic arm are three-stage electric screw telescopic arms, which are electrically connected to the control module; the first rotary joint and the second rotary joint are electric rotary joints, which are electrically connected to the control module; the two rear corners of the controller extend to form two hand-held parts, and both hand-held parts are provided with a rotation button and a telescopic button, which are respectively used to execute the telescopic action of the first telescopic arm and the second telescopic arm, and the rotation action of the first rotary joint and the second rotary joint.

5. The visual lubricating grease detection sampling device according to claim 3 is characterized in that: Two support wheels are arranged on the first rotating joint. The two support wheels are rotatably mounted outside the connecting ears of the first rotating joint and are symmetrically located on both sides of the first telescopic arm.

6. The visual lubricating grease detection sampling device according to claim 1 is characterized in that: The driving mechanism includes a sampling motor, a guide rod and a synchronization disk. There are at least two guide rods, which are arranged parallel to the central axis of the needle seat. The sampling motor is equipped with a lead screw, and the end of the lead screw is threadedly connected to the synchronization disk to drive the synchronization disk to slide along the guide rod. The sampling needle is fixed on the synchronization disk and is offset to one side of the central axis of the needle seat.

7. The visual lubricating grease detection sampling device according to claim 1 is characterized in that: The sensor is a five-in-one sensor, on which a dynamic viscosity detection unit, a density detection unit, a trace moisture detection unit, a water activity detection unit and a temperature detection unit are arranged.

Images