Device for testing adhesion performance of shield tail sealing grease

Abstract

The utility model discloses an adhesion performance testing device for shield tail sealing grease, and aims to provide the adhesion performance testing device for the shield tail sealing grease, which is provided with a component which is convenient for a detected object to be smoothly adhered to a detected piece. The device comprises a detection cylinder, a chassis and a cylinder cover, a motor shaft on a motor in a cylinder cavity is sleeved with a limiting disc and a testing disc, a gap is formed in the connecting position of the testing disc and the motor shaft, the limiting disc is provided with an infrared emitter, the detection cylinder is provided with an infrared receiver, a single-chip microcomputer and a displayer, and the infrared receiver is electrically connected with the single-chip microcomputer. The single-chip microcomputer is electrically connected with the displayer, the multiple injection holes in the cylinder cover are annularly distributed with the motor shaft as the center, and the positions of the injection holes correspond to the positions of the gaps in an up-and-down mode. The utility model has the beneficial effects that the purpose of installing a component which is convenient for a detected object to be smoothly adhered to a detected piece can be achieved; the rotation work of the test disc and the infrared emitter can be conveniently controlled; and the limiting effect on the limiting disc is achieved.

Description

Technical Field

[0001] This utility model relates to the field of adhesion performance testing technology, and in particular to an adhesion performance testing device for shield tail sealing grease. Background Technology

[0002] Sealing grease, also known as sealing oil, is a paste-like substance composed of liquid and solid materials. Under certain pressure, it provides a sealing effect at the connection or sealing points of joined objects (workpieces). Naturally, the joined objects are tightly connected thanks to the adhesive effect of the sealing grease. The adhesiveness of the sealing grease is the most important property for ensuring this tight connection. Therefore, before using sealing grease, it is necessary to conduct an adhesion performance test to ensure its performance. The structure and design of the device used for adhesion performance testing are crucial for successful testing.

[0003] The shield tail is a component of a tunnel boring machine (TBM), a type of tunnel excavation equipment that uses the shield tunneling method. As the machinery responsible for excavation, propulsion, and propulsion, the sealing performance of the shield tail must be strictly guaranteed. Therefore, the adhesion performance of the sealing grease is crucial during the shield tail assembly process, and the operation of the device for testing the sealing grease adhesion performance also requires rigorous attention. Of course, to facilitate the smooth conduct of the testing work, the structural design of the testing device can be reasonably adjusted.

[0004] Chinese Patent Publication No. CN107631959A, published on January 26, 2018, discloses a portable grease adhesion testing device, comprising a test box body. A hinge is bolted to one side of the top of the test box body, and a box cover is hinged to the test box body via the hinge. Evenly spaced fixing boxes are welded to the inner wall of the bottom end of the box cover, and spare test pieces are placed inside the fixing boxes. A fixing plate is welded to the center of the bottom end of the test box body, and a motor is bolted to the top of the fixing plate. A transmission rod is welded to the top of the motor's output shaft, and two fixing rods are welded to the outer wall of the transmission rod. Both ends of the test box are bolted with signal transmitters, and the signal transmission ports of the signal transmitters are located on the side away from the fixed rod. A storage box is welded to one side of the bottom of the test box body. A fixing block is bolted to one side of the outer wall of the test box body, and a signal receiver is welded to the side of the fixing block away from the test box body. A timer is bolted to one side of the outer wall of the test box body, and the timer is located on the side away from the signal receiver. Two welding plates are welded to the top of the box lid, and the tops of the two welding plates are bolted with the same handle. A test piece body, which is a bearing test piece, is sleeved on the outer wall of the transmission rod near the top. The drawback of this technical solution is that when performing adhesion testing, grease needs to be directly applied to the test piece body. This test piece body is sleeved on the outer wall of the transmission rod near the top. Under the operation of the motor, the motor output shaft drives the transmission rod to rotate, and the transmission rod drives the test piece body to rotate, thereby recording the number of rotations of the test piece body and the time taken to calculate the adhesion of the grease. However, the structural components here do not include any parts or designs for adding grease. This means that the adhesion of grease to the test piece must be done manually before testing can be carried out. This not only may result in the grease being applied to the test piece at the wrong location, but it may also lead to situations where there is no grease at the connection between the test piece and the transmission rod before testing is performed. This directly affects the test results of the grease adhesion performance.

[0005] In summary, components can be incorporated to reduce the probability of errors in the adhesion position between the object being tested and the test piece, allowing the testing process to proceed smoothly and ensuring successful test results. Utility Model Content

[0006] This invention aims to overcome the shortcomings of existing technologies where the adhesion positions of the test object and the test piece are incorrect, and provides a device for testing the adhesion performance of shield tail sealing grease, which is equipped with a component that facilitates the smooth adhesion of the test object to the test piece.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A device for testing the adhesion performance of a shield tail sealing grease includes a testing cylinder, a base, and a cover. The testing cylinder has a cavity. The base is located at the bottom of the testing cylinder, and the cover is located at the top of the testing cylinder. Both the base and the cover are detachably connected to the testing cylinder. A motor is installed inside the cavity and is detachably connected to the base. A motor shaft is mounted on the motor and connected to the motor. A limiting plate and a testing plate are mounted on the motor shaft. The testing plate is positioned between the cover and the limiting plate. The limiting plate is connected to the motor shaft. The test disc is detachably connected to the motor shaft, and a gap is provided at the connection between the test disc and the motor shaft. An infrared emitter is installed on the limiting disc, and an infrared receiver, a microcontroller, and a display are installed on the detection cylinder. The position of the infrared receiver and the position of the infrared emitter are on the same plane. The infrared receiver is electrically connected to the microcontroller, and the microcontroller is electrically connected to the display. The cylinder cover is provided with several injection holes, which are arranged in a ring around the motor shaft. The positions of the injection holes correspond vertically to the positions of the gaps.

[0009] This design, through the installation of the test cylinder, chassis, and cover, allows for the construction of an adhesion performance testing device. The chassis is positioned at the bottom of the test cylinder, and the cover at the top, thus sealing the cavity of the test cylinder. Both the chassis and cover are detachably connected to the test cylinder, facilitating installation and removal for testing, replacement, and maintenance. A motor is installed inside the cavity, also detachably connected to the chassis, providing both motor and chassis position limits. The motor is equipped with a motor shaft, which is connected to the motor. A limit plate and a test plate are mounted on the motor shaft. The test plate is positioned between the cylinder cover and the limit plate. The limit plate is connected to the motor shaft, meaning it is stably mounted on the motor shaft. The test plate is detachably connected to the motor shaft, allowing for manual installation and removal. It's important to note that there is a gap at the connection between the test plate and the motor shaft. Regardless of the size of the gap, objects can penetrate. An infrared transmitter is mounted on the limit plate, while an infrared receiver, a microcontroller, and a display are mounted on the detection cylinder. The infrared receiver and the infrared transmitter are located on the same plane. Because there is a gap at the connection between the test plate and the motor shaft, a seal is required to ensure a tight connection. Therefore, the penetration of sealing grease needs to be controlled. The cylinder cover has several injection holes arranged in a ring around the motor shaft. The position of these injection holes corresponds vertically to the position of the gap. This allows for the controlled injection of sealing grease through the injection holes. Then, the sealing grease, a paste-like substance composed of liquid and solid materials, can be pushed down by the stopper rod until it is inserted into the gap. The gap between the test disc and the motor shaft is then tightly connected by the inserted sealing grease, which finally covers the gap. The utilization and layout of this gap facilitates the smooth insertion of sealing grease into the gap between the test disc and the motor shaft, thus achieving the purpose of installing a component that allows the test object to adhere smoothly to the test piece. Finally, under the control of the motor, the motor shaft drives the test plate and the limit plate to rotate. Since the gap between the test plate and the motor shaft is filled with sealing grease, it provides resistance to the rotation of the test plate. The rotation of the infrared receiver causes the infrared light to rotate as well, which means that the infrared receiver can intermittently receive infrared light. This information is then transmitted to the microcontroller. After processing by the microcontroller, the information is transmitted to the display, which can then display the number of rotations received.At the same time, the microcontroller can also store a timing function, which is the working time of the motor. The display also shows the time it takes for the motor shaft to rotate. By calculating the number of rotations and the rotation time, the adhesion of the sealing grease can be calculated.

[0010] Preferably, the limiting plate has a first fitting hole, the diameter of which is equal to the diameter of the motor shaft, and the test plate has a second fitting hole, the diameter of which is greater than the diameter of the motor shaft. This design, with the first fitting hole on the limiting plate having a diameter equal to the diameter of the motor shaft, allows the limiting plate to be smoothly fitted onto the motor shaft, ensuring a stable and fixed connection between the limiting plate and the motor shaft. The test plate, however, has a second fitting hole, the diameter of which is greater than the diameter of the motor shaft. When the test plate is fitted onto the motor shaft, a gap will appear in the second fitting hole. This gap needs to be filled with sealing grease to ensure a tight connection between the test plate and the motor shaft. When the motor shaft rotates, it drives the test plate to rotate, allowing the number of rotations and rotation time to be recorded, thereby calculating the adhesion of the sealing grease.

[0011] Preferably, the chassis has a slot, the bottom end of the motor matches the slot, and the bottom end of the motor shaft connects to the top end of the motor. This design, by providing a slot on the chassis and allowing the bottom end of the motor to match the slot, enables motor control, allowing the bottom end of the motor to be inserted into the slot, thus limiting the motor's movement. The bottom end of the motor shaft connects to the top end of the motor, allowing the motor shaft to rotate smoothly during operation, facilitating the testing of the adhesion performance of the sealing grease.

[0012] Preferably, the cylinder cover has a rotating groove, and the top end of the motor shaft matches the rotating groove. Several injection holes are arranged in a ring around the rotating groove. This design, with the rotating groove on the cylinder cover and the top end of the motor shaft matching it, allows for control of the cylinder cover, enabling the top end of the motor shaft to be inserted into the rotating groove for positioning. The injection holes, arranged in a ring around the rotating groove, allow the sealing grease to be injected through these holes, placing it on the outer edge of the motor shaft. This further connects the test disc and the motor shaft through the sealing grease, facilitating the testing of the sealing grease's adhesion performance.

[0013] Preferably, the inner wall of the detection cylinder is provided with a limiting groove, which is annular. The infrared receiver is placed inside the limiting groove, and the limiting plate matches the limiting groove. The display is placed on the outer wall of the detection cylinder. This design, with the limiting groove on the inner wall of the detection cylinder being annular and the infrared receiver placed inside it, allows the limiting plate to be positioned relative to the limiting groove. This effectively limits the infrared emitter on the limiting plate, ensuring that the infrared light emitted by the emitter can be successfully received by the infrared receiver when the motor shaft controls the rotation of the limiting plate. This allows for the recording of the number of motor shaft rotations and the time taken, which in turn enables the calculation of the adhesion performance of the sealing grease. The display, placed on the outer wall of the detection cylinder, allows for easy viewing of the recorded values ​​of the number of motor shaft rotations and the time taken.

[0014] Preferably, the outer edge of the limiting plate is placed within a limiting groove, and a mounting groove is provided on the outer edge of the limiting plate, with the infrared emitter placed within the mounting groove. This design, by placing the outer edge of the limiting plate within the limiting groove, effectively limits the movement of the limiting plate, preventing it from disengaging from the groove during rotation. This also prevents the infrared light emitted by the infrared emitter from being unreceived by the infrared receiver when the limiting plate rotates. Furthermore, the mounting groove on the outer edge of the limiting plate, with the infrared emitter placed within it, prevents the infrared emitter from being touched by the infrared receiver during rotation, thus avoiding damage.

[0015] The beneficial effects of this utility model are: it can achieve the purpose of installing a component that facilitates the smooth adhesion of the test object to the test piece; it facilitates the control of the rotation of the test plate and the infrared emitter; and it plays a limiting role for the limiting plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of this utility model;

[0018] Figure 3 This is a schematic diagram showing the location of the injection hole and the location of the rotating groove in this utility model.

[0019] Figure 4 This is a schematic diagram showing the location of the gap in this utility model;

[0020] Figure 5 This is a schematic diagram showing the location of the limiting groove of this utility model;

[0021] Figure 6This is a schematic diagram showing the location of the infrared transmitter and the infrared receiver of the utility model.

[0022] In the diagram: 1. Detection cylinder, 2. Chassis, 3. Cylinder cover, 4. Display, 5. Injection hole, 6. Slot, 7. Motor, 8. Motor shaft, 9. Limiting plate, 10. Test plate, 11. Cylinder cavity, 12. Fitting hole one, 13. Fitting hole two, 14. Infrared transmitter, 15. Rotating groove, 16. Gap, 17. Limiting groove, 18. Infrared receiver, 19. Microcontroller. Detailed Implementation

[0023] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 In the illustrated embodiment, a device for testing the adhesion performance of a shield tail sealing grease includes a testing cylinder 1, a base 2, and a cover 3. The testing cylinder 1 has a cavity 11. The base 2 is placed at the bottom of the testing cylinder 1, and the cover 3 is placed at the top of the testing cylinder 1. Both the base 2 and the cover 3 are detachably connected to the testing cylinder 1. A motor 7 is installed inside the cavity 11 and is detachably connected to the base 2. A motor shaft 8 is mounted on the motor 7 and connected to the motor 7. A limiting plate 9 and a test plate 10 are mounted on the motor shaft 8. The test plate 10 is placed between the cover 3 and the limiting plate 9. The limiting plate 9 is connected to the motor shaft 8. The test disc 10 is detachably connected to the motor shaft 8. A gap 16 is provided at the connection between the test disc 10 and the motor shaft 8. An infrared transmitter 14 is installed on the limit disc 9. An infrared receiver 18, a microcontroller 19, and a display 4 are installed on the test cylinder 1. The position of the infrared receiver 18 and the position of the infrared transmitter 14 are on the same plane. The infrared receiver 18 is electrically connected to the microcontroller 19, and the microcontroller 19 is electrically connected to the display 4. Several injection holes 5 are provided on the cylinder cover 3. The injection holes 5 are arranged in a ring around the motor shaft 8. The position of the injection holes 5 corresponds vertically to the position of the gap 16.

[0025] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the limiting plate 9 has a fitting hole 12, the diameter of which is equal to the diameter of the motor shaft 8. The test plate 10 has a fitting hole 13, the diameter of which is greater than the diameter of the motor shaft 8. The base plate 2 has a slot 6, the bottom end of the motor 7 matches the slot 6, and the bottom end of the motor shaft 8 connects to the top end of the motor 7. The cylinder cover 3 has a rotating groove 15, the top end of the motor shaft 8 matches the rotating groove 15, and several injection holes 5 are arranged in a ring around the rotating groove 15. The inner wall of the detection cylinder 1 has a limiting groove 17, which is annular. The infrared receiver 18 is placed in the limiting groove 17, the limiting plate 9 matches the limiting groove 17, and the display 4 is placed on the outer wall of the detection cylinder 1. The outer edge of the limiting plate 9 is placed in the limiting groove 17, and the outer edge of the limiting plate 9 has a mounting groove, in which the infrared transmitter 14 is placed.

[0026] First, the adhesion performance testing device for the shield tail sealing grease is installed. This testing device includes a testing cylinder 1, a base plate 2, and a cylinder cover 3. During installation, the base plate 2 is placed at the bottom of the testing cylinder 1, and the cylinder cover 3 is placed at the top of the testing cylinder 1. This seals the cavity 11 of the testing cylinder 1 through the installation of the base plate 2 and the cylinder cover 3. The connection between the cylinder cover 3 and the testing cylinder 1, as well as the connection between the base plate 2 and the testing cylinder 1, can be made by threaded connection. The connection or disassembly of the base plate 2 and the cylinder cover 3 can be easily made by rotating them.

[0027] Of course, the motor 7 is installed inside the cavity 11 of the test cylinder 1. The bottom end of the motor 7 is inserted into the slot 6 on the chassis 2, while the top end of the motor shaft 8 can be inserted into the rotating groove 15 on the cylinder cover 3. Since the bottom end of the motor shaft 8 is connected to the top end of the motor 7, it provides a stable limiting effect for the motor 7. Of course, the motor shaft 8 will rotate. In order to facilitate the rotation of the motor shaft 8, a rolling bearing can also be installed in the rotating groove 15. The outer ring of this rolling bearing is connected to the cylinder cover 3, and the top end of the motor shaft 8 can be inserted into the inner ring of the rolling bearing. Thus, the motor shaft 8 can rotate smoothly under the limiting support of the cylinder cover 3.

[0028] Furthermore, a limiting disc 9 and a test disc 10 are mounted on the motor shaft 8. The test disc 10 is positioned between the cylinder cover 3 and the limiting disc 9. The limiting disc 9 has a first fitting hole 12, the diameter of which is equal to the diameter of the motor shaft 8. The test disc 10 has a second fitting hole 13, the diameter of which is greater than the diameter of the motor shaft 8. This means that when the test disc 10 is mounted on the motor shaft 8, a gap 16 will appear. Regardless of its size, this gap 16 will affect the rotation of the test disc 10 driven by the motor shaft 8. Therefore, to ensure that the motor shaft 8 can smoothly drive the test disc 10 to rotate, sealing grease needs to be inserted into the gap 16.

[0029] Meanwhile, a limiting groove 17 is provided on the inner wall of the detection cylinder 1. The limiting groove 17 has a circular cross-sectional shape, and the infrared receiver 18 is placed inside the limiting groove 17. Furthermore, the outer edge of the limiting disk 9 is also placed inside the limiting groove 17. An installation groove is provided on the outer edge of the limiting disk 9, and the infrared transmitter 14 is installed in the installation groove. This not only allows the limiting groove 17 to limit the limiting disk 9, preventing it from dislodging from its plane when rotating, but also ensures that the infrared transmitter 14 and the infrared receiver 18 are on the same plane. Therefore, no matter how the limiting disk 9 rotates, the infrared receiver 18 can successfully receive the infrared rays emitted by the infrared transmitter 14. Of course, the infrared transmitter 14, infrared receiver 18, display 4 and motor 7 need to be electrically connected to a switching assembly, which in turn needs to be electrically connected to an external power supply. The switching assembly can be installed on the outer wall of the detection cylinder 1 to control the switching of the infrared transmitter 14, infrared receiver 18, display 4 and motor 7.

[0030] Next, the sealing grease needs to be injected through the injection hole 5 on the cylinder cover 3. Since the sealing grease is a paste-like substance composed of both liquid and solid materials, it can be smoothly injected through the injection hole 5. However, during the injection process, external force still needs to be applied, which can be achieved by using a stopper rod to push the paste-like sealing grease downwards. Because several injection holes 5 are arranged in a ring around the rotating groove 15, that is, several injection holes 5 are arranged in a ring around the motor shaft 8, the sealing grease can flow smoothly downwards under the guidance of the motor shaft 8. The connection between the test disc 10 and the motor shaft 8 is placed as close as possible to the cylinder cover 3, so the sealing grease can be inserted into the gap 16 more smoothly. The bottom end of the test disc 10 can contact the limiting disc 9. Since the limiting disc 9 is fixedly connected to the motor shaft 8, the test disc 10 is under the stable support of the limiting disc 9, which further facilitates the injection of sealing grease. The use of gap 16 and its layout here facilitate the smooth insertion of sealing grease into the gap 16 at the connection between the test disc 10 and the motor shaft 8, thus achieving the purpose of installing a component that allows the test object to adhere smoothly to the test piece.

[0031] Then, under the control of the switching assembly, the motor shaft 8 on the motor 7 rotates smoothly. Since the motor shaft 8 rotates without resistance, the number of rotations and the time taken are fixed. However, the adhesion of the sealing grease causes the test disc 10 to act as resistance against the motor shaft 8, thus altering the number of rotations and the time taken. Driven by the rotation of the motor shaft 8, the limit disc 9 is controlled to rotate, and the infrared transmitter 14 mounted on the limit disc 9 is also driven to rotate. During rotation, the infrared rays emitted by the infrared transmitter 14 can be intermittently received by the external receiver 18. The external receiver 18 then transmits the received information to the microcontroller 19. After the microcontroller 19 operates, it transmits this information to the display 4, thus displaying the number of times the external receiver 18 receives the infrared rays, which is the number of rotations of the infrared transmitter 14. At the same time, the microcontroller 19 also stores timing information, meaning that the microcontroller 19 has timing capabilities. Thus, the microcontroller 19 also needs to be electrically connected to the switching component. The time period from the start to the end of the operation of the motor 7 is also timed by the microcontroller 19 and displayed on the display 4. In this way, the two values ​​of the number of revolutions and the number of times displayed on the display 4 on the outer wall of the detection cylinder 1 can be seen from the outside, and calculations can be performed to obtain the adhesion value of the sealing grease.

Claims

1. A device for testing the adhesion performance of shield tail sealing grease, characterized in that, The test cylinder includes a test cylinder (1), a base (2), and a cover (3). The test cylinder (1) has a cavity (11). The base (2) is placed at the bottom of the test cylinder (1), and the cover (3) is placed at the top of the test cylinder (1). The base (2) and the cover (3) are detachably connected to the test cylinder (1). A motor (7) is installed inside the cavity (11). The motor (7) is detachably connected to the base (2). A motor shaft (8) is installed on the motor (7). The motor shaft (8) is connected to the motor (7). A limit plate (9) and a test plate (10) are mounted on the motor shaft (8). The test plate (10) is placed between the cover (3) and the limit plate (9). The limit plate (9) is connected to the motor shaft (8). The test plate (10) is connected to the cover (3) and the limit plate (9). The motor shaft (8) is detachably connected. A gap (16) is provided at the connection between the test plate (10) and the motor shaft (8). An infrared transmitter (14) is installed on the limiting plate (9). An infrared receiver (18), a microcontroller (19) and a display (4) are installed on the detection cylinder (1). The position of the infrared receiver (18) and the position of the infrared transmitter (14) are on the same plane. The infrared receiver (18) is electrically connected to the microcontroller (19). The microcontroller (19) is electrically connected to the display (4). A number of injection holes (5) are provided on the cylinder cover (3). The number of injection holes (5) are distributed in a ring around the motor shaft (8). The position of the injection hole (5) corresponds vertically to the position of the gap (16).

2. The device for testing the adhesion performance of shield tail sealing grease according to claim 1, characterized in that, The limiting plate (9) is provided with a first fitting hole (12), the diameter of which is equal to the diameter of the motor shaft (8). The test plate (10) is provided with a second fitting hole (13), the diameter of which is greater than the diameter of the motor shaft (8).

3. The device for testing the adhesion performance of shield tail sealing grease according to claim 1, characterized in that, The chassis (2) is provided with a slot (6), the bottom end of the motor (7) matches the slot (6), and the bottom end of the motor shaft (8) is connected to the top end of the motor (7).

4. The device for testing the adhesion performance of shield tail sealing grease according to claim 1, characterized in that, The cylinder cover (3) is provided with a rotating groove (15), the top end of the motor shaft (8) matches the rotating groove (15), and several injection holes (5) are distributed in a ring around the rotating groove (15).

5. The device for testing the adhesion performance of shield tail sealing grease according to claim 1, characterized in that, The inner wall of the detection cylinder (1) is provided with a limiting groove (17), the limiting groove (17) is circular, the infrared receiver (18) is placed in the limiting groove (17), the limiting plate (9) matches the limiting groove (17), and the display (4) is placed on the outer wall of the detection cylinder (1).

6. The device for testing the adhesion performance of shield tail sealing grease according to claim 5, characterized in that, The outer edge of the limiting plate (9) is placed in the limiting groove (17), and the outer edge of the limiting plate (9) is provided with an installation groove, and the infrared emitter (14) is placed in the installation groove.

Images