A caster wear detection device with in-situ particle monitoring

Abstract

The application belongs to the technical field of caster wear resistance detection devices, and discloses a caster wear resistance detection device with in-situ particle monitoring, which comprises an equipment table, a concrete roller and a detection frame are arranged on the equipment table, a test caster is arranged in the detection frame, and a self-circulation closed detection part is arranged on the equipment table and used for monitoring particles generated by the wear of the test caster. The bidirectional screw is driven by the motor, the sealing sleeve is quickly sleeved on the detection frame to form a closed space in cooperation with the elastic self-opening part, the particles generated by the wear of the test caster are effectively prevented from drifting, the circulating assembly constructs self-circulation airflow by means of the fan, the flow guide sleeve and the metal pipe, the particles in the sealing sleeve are uniformly distributed, and the particles generated by the wear of the test caster can be monitored in real time in cooperation with the inclined sleeve guide. The caster wear resistance detection device can meet the detection requirements of particle pollution in scenes such as precision instruments and clean workshops, and can judge the wear speed through the change of particle concentration.

Description

Technical Field

[0001] This invention belongs to the technical field of caster wear resistance testing devices, specifically a caster wear resistance testing device with in-situ particle monitoring. Background Technology

[0002] Casters are key rolling components that integrate wheel body, bracket, axle and bearing. With their flexible steering and stable load-bearing characteristics, they are widely used in various products that need to be moved, such as suitcases, industrial turnover vehicles, medical devices, and logistics and warehousing equipment. Their performance directly affects the ease of movement, safety of use and service life of the equipment. Wear resistance, as one of the core quality indicators of casters, plays a decisive role in the overall reliability of the product.

[0003] During the production and processing of casters, in order to ensure that the products meet the requirements for use, wear resistance performance must be tested by simulating actual working conditions using a wear resistance testing machine. Currently, caster wear resistance testing machines can only indirectly evaluate wear resistance performance by measuring parameters such as weight loss, size reduction, and surface scratches of the caster after testing. They cannot capture particles generated during the wear process of the caster in real time, which means that casters cannot meet the detection requirements for particle contamination in scenarios such as precision instruments and clean rooms. They also cannot determine the real-time wear rate and abnormal wear trend of the caster by changes in particle concentration, thus limiting the application and promotion of casters in high-end scenarios. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides a caster wear resistance testing device with in-situ particle monitoring, comprising a device platform, on which a concrete roller and a testing frame are mounted, and a test caster is disposed inside the testing frame, and further comprising: A self-circulating, sealed detection component is mounted on the equipment platform to monitor particles generated by the wear of test casters. The self-circulating sealed detection device includes a bidirectional drive mechanism with two symmetrically connected sealing sleeves. During detection, the sealing sleeves on both sides surround the contact area between the test caster and the concrete roller to form a sealed detection space. A laser detection device is fixedly installed on the sealing sleeve. An inclined sleeve communicating with the sealing sleeve is fitted on the detection end of the laser detection device. An elastic self-starting component is also provided on the output end of the bidirectional drive mechanism. A circulation component is provided on the inclined sleeve. The anti-misdetection cleaning component is located on one side of the equipment platform and is used to automatically remove dust from the inside of the sealing sleeve.

[0005] In the above technical solution, preferably, the bidirectional drive mechanism includes a motor fixedly connected to the equipment platform, a bidirectional screw fixedly connected to the output end of the motor, and support sleeves connected to the sealing sleeve symmetrically sleeved on the bidirectional screw. The sealing sleeve is sleeved on the detection frame. The elastic self-starting element includes a movable sleeve threadedly connected to the bidirectional screw. A spring is fixedly connected to one side of the movable sleeve, one end of the spring is fixedly connected to the support sleeve, a stop sleeve is fixedly connected to the support sleeve, and a push-button switch is fixedly connected inside the stop sleeve. One side of the push-button switch is in contact with the movable sleeve.

[0006] In the above technical solution, preferably, a limiting guide rail is fixedly connected to the equipment platform, the support sleeve and the movable sleeve are both sleeved on the limiting guide rail, and a sleeve plate is fixedly connected to the equipment platform, the sleeve plate being sleeved on the bidirectional screw.

[0007] In the above technical solution, preferably, the circulation component includes a metal tube connected to the inclined sleeve, a fan connected to one side of the metal tube, a sealing sleeve connected to one side of the fan, and a flow guide sleeve fixedly connected inside the sealing sleeve, the flow guide sleeve being located on one side of the fan.

[0008] In the above technical solution, preferably, the anti-misdetection cleaning component includes a dust collection device installed on one side of the equipment platform. The air inlet of the dust collection device is connected to a one-way valve pipe. One end of the one-way valve pipe is connected to a sealing sleeve. Two air inlets are symmetrically opened on the sealing sleeve. A sealing plate is hinged inside the sealing sleeve by a torsion spring hinge. The sealing plate is located on one side of the air inlet. An automatic opening and closing component connected to the movable sleeve is provided on the equipment platform.

[0009] In the above technical solution, preferably, the automatic opening and closing component includes a concave plate fixedly connected to the equipment platform, a square sleeve slidably connected inside the concave plate, a second push button switch located inside the concave plate fixedly connected to the equipment platform, the bottom of the square sleeve contacting the top of the second push button switch, and a trapezoidal plate located on one side of the square sleeve fixedly connected to the movable sleeve.

[0010] In the above technical solution, preferably, the square sleeve is provided with a self-cleaning component, the self-cleaning component includes a top plate fixedly connected to the square sleeve, a movable plate fixedly connected to the bottom of the top plate, the bottom end of the movable plate penetrating into the interior of the sealing sleeve and fixedly connected to a brush plate, the brush plate being located on one side of the concrete roller, and a reset component being provided inside the square sleeve.

[0011] In the above technical solution, preferably, the reset component includes a circular groove formed on the concave plate, a second spring is fixedly connected inside the circular groove, and the top end of the second spring is fixedly connected inside the square sleeve.

[0012] In the above technical solution, preferably, a limiting sleeve is provided on the moving plate, one side of the limiting sleeve is fixedly connected to the inside of the sealing sleeve, and one side of the sealing sleeve is in contact with the surface of the equipment platform.

[0013] In the above technical solution, preferably, the movable sleeve is provided with an anti-tensile member, the anti-tensile member includes a positioning plate fixedly connected to the movable sleeve, a sleeve fixedly connected to one side of the positioning plate, a trapezoidal rod slidably connected inside the sleeve, and one end of the trapezoidal rod fixedly connected to the support sleeve.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention uses a motor-driven bidirectional screw, in conjunction with an elastic self-starting component, to quickly mount a sealing sleeve onto the testing frame, forming a sealed space. This effectively prevents particles from scattering due to caster wear, ensuring a stable monitoring environment. The circulation component, with the help of a fan, guide sleeve, and metal tube, constructs a self-circulating airflow, ensuring uniform particle distribution within the sealing sleeve. Combined with the guidance of the tilting sleeve, this improves the sampling accuracy of the laser detection device. It enables real-time monitoring of particles from caster wear, meeting the particle contamination detection needs of precision instruments, cleanrooms, and other scenarios. Furthermore, it allows for the determination of wear rate through changes in particle concentration, providing precise data support for optimizing caster wear resistance.

[0015] Furthermore, after completing a caster wear resistance test, wear particles generated in the previous test will remain inside the sealing sleeve. During subsequent tests, these residual particles will mix with newly generated particles and be misdetected by the laser detection device, failing to accurately reflect the real-time wear of the caster. However, through the design of the anti-misdetection cleaning component, including the dust collection device, one-way valve tube, and automatic opening and closing mechanism, the automatic opening and closing mechanism is linked with the moving sleeve. During the opening and closing of the sealing sleeve, the trapezoidal plate pushes the square sleeve to press the second button switch, automatically activating the dust collection device. At the same time, outside air enters the sealing sleeve through the air inlet, and the dust collection device extracts the residual particles inside through the one-way valve tube, achieving automatic dust removal inside the sealing sleeve, avoiding interference from residual particles, and ensuring the accuracy of the monitoring data of the laser detection device.

[0016] Furthermore, the anti-false detection cleaning component can only remove suspended abrasive particles inside the sealed sleeve through the vacuuming device, but it cannot handle residual particles attached to the surface of the concrete roller. These particles will fall off again during subsequent tests as the concrete roller rotates and mix with newly generated particles from the test casters, still causing false detection by the laser detection device. However, through the design of the top plate, moving plate, and brush plate in the self-cleaning component, when the square sleeve moves down, the top plate and moving plate will move down, allowing the brush plate to adhere to the surface of the concrete roller. The rotation of the concrete roller will automatically clean the particles attached to the surface, preventing residual particles on the concrete roller surface from falling off again and interfering with the detection, further improving the accuracy of in-situ particle monitoring data. The reset component can provide continuous reset elasticity, improving the reset speed of the brush plate when it is not in use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the sealing sleeve of the present invention; Figure 3 This is a cross-sectional schematic diagram of the support sleeve of the present invention; Figure 4 This is a cross-sectional schematic diagram of the sealing sleeve of the present invention; Figure 5 This is a cross-sectional schematic diagram of the concave plate of the present invention; Figure 6 This is a schematic diagram of the support sleeve of the present invention; Figure 7 This is a schematic diagram of the brush plate structure of the present invention; Figure 8 This is a cross-sectional schematic diagram of the movable plate of the present invention.

[0018] In the diagram: 1. Equipment platform; 2. Concrete roller; 3. Support platform; 4. Testing frame; 5. Test casters; 6. Self-circulating sealed testing component; 61. Motor; 62. Bidirectional screw; 63. Support sleeve; 64. Sealing sleeve; 65. Laser detection device; 66. Inclined sleeve; 67. Elastic self-starting component; 671. Moving sleeve; 672. Spring 1; 673. Stop sleeve; 674. Push-button switch 1; 68. Circulation assembly; 681. Metal pipe; 682. Fan; 683. Flow guide sleeve; 7. Anti-false test cleaning component; 71 72. Dust collection device; 73. One-way valve pipe; 74. Air inlet; 75. Sealing plate; 76. Automatic opening and closing component; 77. Concave plate; 78. Square sleeve; 79. Push button switch II; 70. Trapezoidal plate; 80. Limiting guide rail; 91. Sleeve plate; 102. Self-cleaning component; 103. Top plate; 104. Moving plate; 105. Brush plate; 106. Reset component; 107. Circular groove; 108. Spring II; 11. Limiting sleeve; 12. Tensile-resistant component; 13. Positioning plate; 14. Sleeve; 15. Trapezoidal rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 4 As shown, the present invention provides a caster wear resistance testing device with in-situ particle monitoring, including a device platform 1, a concrete roller 2 mounted on the device platform 1, a support platform 3 fixedly connected to the device platform 1, a testing frame 4 disposed inside the support platform 3, and a test caster 5 disposed inside the testing frame 4, and further including: The self-circulating sealed detection component 6 is set on the equipment platform 1 and is used to monitor the particles generated by the wear of the test caster 5; The self-circulating sealed testing component 6 includes a bidirectional drive mechanism with two symmetrically connected sealing sleeves 64. During testing, the sealing sleeves 64 surround the contact area between the test caster 5 and the concrete roller 2 to form a sealed testing space. The bidirectional drive mechanism includes a motor 61 fixedly connected to the equipment platform 1. The output end of the motor 61 is fixedly connected to a bidirectional screw 62. Support sleeves 63 connected to the sealing sleeves 64 are symmetrically fitted on the bidirectional screw 62. The sealing sleeves 64 are fitted on the testing frame 4. A laser testing device 65 is fixedly installed on the sealing sleeves 64. An inclined sleeve 66 is fitted on the testing end of the laser testing device 65. One side of the inclined sleeve 66 is connected to the sealing sleeve 64. An elastic self-starting component 67 connected to the support sleeve 63 is provided on the bidirectional screw 62. A circulation component 68 is provided on the inclined sleeve 66. The bidirectional screw 62 rotates in the forward / reverse direction, driving the elastic self-starting element 67 to move the sealing sleeve 64 along the direction of approaching / moving away from the test caster 5, thereby putting / not putting it on the test frame 4; The anti-misdetection cleaning component 7 is installed on one side of the equipment platform 1 and is used to automatically remove dust from the inside of the sealing sleeve 64.

[0021] Specifically, the equipment platform 1 consists of an equipment box, a drive motor, a control panel, and other structures. The drive motor 61 is fixedly installed inside the equipment box and can drive the concrete roller 2 to rotate. The control panel can control the speed and switching time of the drive motor. The testing frame 4 consists of a pressure plate, a mounting sleeve, a disc, and a counterweight plate. The pressure plate is slidably connected inside the testing frame 4, the mounting sleeve is fixedly connected to the bottom of the pressure plate, the test casters 5 are installed inside the mounting sleeve, the disc is fixedly connected to the pressure plate, and the counterweight plate is placed on the disc. The counterweight plate can drive the test casters 5 to press against the concrete roller 2 through the disc and the pressure plate, facilitating wear resistance testing under different pressures. The laser detection device 65 is a laser dust particle counter. The equipment platform 1, the testing frame 4, and the laser detection device 65 are all mature technology applications.

[0022] like Figures 2 to 6 As shown, the elastic self-starting component 67 includes a movable sleeve 671 threadedly connected to a bidirectional screw 62. A spring 672 is fixedly connected to one side of the movable sleeve 671. One end of the spring 672 is fixedly connected to a support sleeve 63. A retaining sleeve 673 is fixedly connected to the support sleeve 63. A push-button switch 674 is fixedly connected inside the retaining sleeve 673. One side of the push-button switch 674 is in contact with the movable sleeve 671.

[0023] Specifically, the moving sleeve 671 is driven to move by the bidirectional screw 62, and the supporting sleeve 63 and the sealing sleeve 64 are moved by the spring 672, so that the sealing sleeve 64 can be quickly put on the test frame 4. The spring 672 can provide elastic cushioning. When the two sealing sleeves 64 come into contact with each other, the moving sleeve 671 will continue to move and squeeze the spring 672. Finally, the moving sleeve 671 will press the button switch 674, which will start the fan 682 to circulate. The circulation component 68 can suspend the particles. After the wear resistance test is completed, the anti-false test cleaning component 7 can effectively remove the particles and prevent the inability to effectively remove particles due to sedimentation.

[0024] like Figures 1 to 3 As shown, a limiting guide rail 8 is fixedly connected to the equipment platform 1. The support sleeve 63 and the moving sleeve 671 are both sleeved on the limiting guide rail 8. A sleeve plate 9 is fixedly connected to the equipment platform 1 and is sleeved on the bidirectional screw 62.

[0025] Specifically, the limiting guide rail 8 can accurately guide the support sleeve 63 and the moving sleeve 671, preventing them from shifting or shaking under the drive of the bidirectional screw 62, ensuring that the sealing sleeve 64 moves smoothly along the predetermined trajectory. The sleeve plate 9 can support the bidirectional screw 62, enhance its stability during rotation, prevent the bidirectional screw 62 from bending and deforming due to excessive force, and ensure the opening and closing accuracy and sealing detection effect of the sealing sleeve 64.

[0026] like Figures 4 to 8As shown, the circulation assembly 68 includes a metal tube 681 connected to the inclined sleeve 66, a fan 682 connected to one side of the metal tube 681, a sealing sleeve 64 connected to one side of the fan 682, and a flow guide sleeve 683 fixedly connected inside the sealing sleeve 64, the flow guide sleeve 683 being located on one side of the fan 682.

[0027] Specifically, the inclined sleeve 66 and the fan 682 are connected by the metal tube 681. The airflow direction is guided by the guide sleeve 683 inside the sealing sleeve 64, forming an automatic airflow circulation inside the sealing sleeve 64. The airflow can drive the particles generated by the wear of the test caster 5 to be evenly suspended and distributed, avoiding particle deposition or local aggregation. This ensures that the detection end of the laser detection device 65 can accurately capture the particle sample through the inclined sleeve 66, improving the accuracy and reliability of particle monitoring data.

[0028] like Figures 1 to 4 As shown, the anti-misdetection cleaning component 7 includes a vacuuming device 71 installed on one side of the equipment platform 1. The air inlet of the vacuuming device 71 is connected to a one-way valve pipe 72. One end of the one-way valve pipe 72 is connected to a sealing sleeve 64. Two air inlets 73 are symmetrically opened on the sealing sleeve 64. A sealing plate 74 is hinged inside the sealing sleeve 64 by a torsion spring hinge. The sealing plate 74 is located on one side of the air inlets 73. An automatic opening and closing component 75 connected to the movable sleeve 671 is provided on the equipment platform 1.

[0029] Specifically, the vacuuming device 71 is a miniature vacuum cleaner; the automatic opening and closing component 75 is linked with the moving sleeve 671. During the opening and closing of the sealing sleeve 64, the trapezoidal plate 754 pushes the square sleeve 752 to press the button switch 753, automatically starting the vacuuming device 71; at the same time, outside air enters the sealing sleeve 64 through the air inlet 73, and the vacuuming device 71 extracts the internal residual particles through the one-way valve tube 72, realizing automatic dust removal inside the sealing sleeve 64, avoiding interference from residual particles, and ensuring the accuracy of the monitoring data of the laser detection device 65.

[0030] like Figures 3 to 5 As shown, the automatic opening and closing component 75 includes a concave plate 751 fixedly connected to the equipment platform 1, a square sleeve 752 slidably connected inside the concave plate 751, a push button switch 753 fixedly connected inside the concave plate 751 on the equipment platform 1, the bottom of the square sleeve 752 contacting the top of the push button switch 753, and a trapezoidal plate 754 fixedly connected to one side of the square sleeve 752 on the movable sleeve 671.

[0031] Specifically, both push-button switch 674 and push-button switch 753 are momentary switches. Push-button switch 674 is electrically connected to fan 682, and push-button switch 753 is electrically connected to vacuum cleaner 71. In use, motor 61 drives moving sleeve 671 via bidirectional screw 62. Moving sleeve 671, through spring 672 and support sleeve 63, drives sealing sleeve 64. When the two sealing sleeves 64 come into contact, moving sleeve 671 drives trapezoidal plate 754 to move continuously, causing trapezoidal plate 754 to squeeze... The pressure sleeve 752 slides along the inside of the concave plate 751, thereby automatically pressing the second button switch 753. The second button switch 753 starts the vacuuming device 71 to vacuum. Since the trapezoidal plate 754 is relatively wide, the vacuuming device 71 is determined by the width of the trapezoidal plate 754 and the rotation speed of the motor 61. The slower the speed of the motor 61, the longer the vacuuming time. After the vacuuming is completed, the trapezoidal plate 754 will move away from the pressure sleeve 752, and at the same time, the moving sleeve 671 presses the first button switch 674 to realize automatic opening and closing.

[0032] like Figures 1 to 4 As shown, a self-cleaning assembly 10 is provided on the square sleeve 752. The self-cleaning assembly 10 includes a top plate 101 fixedly connected to the square sleeve 752. A movable plate 102 is fixedly connected to the bottom of the top plate 101. The bottom end of the movable plate 102 extends into the interior of the sealing sleeve 64 and is fixedly connected to a brush plate 103. The brush plate 103 is located on one side of the concrete roller 2. A reset member 104 is provided inside the square sleeve 752.

[0033] Specifically, when the square sleeve 752 moves down, it moves down through the top plate 101 and the moving plate 102, so that the brush plate 103 is attached to the surface of the concrete roller 2. The rotation of the concrete roller 2 realizes the automatic cleaning of the particles attached to the surface, avoiding the residual particles on the surface of the concrete roller 2 from falling off again and interfering with the detection, and further improving the accuracy of the in-situ particle monitoring data. The reset component 104 can provide continuous reset elasticity, improving the reset speed of the brush plate 103 when it is not needed.

[0034] like Figures 3 to 5 As shown, the reset member 104 includes a circular groove 1041 formed on the concave plate 751. A second spring 1042 is fixedly connected inside the circular groove 1041, and the top end of the second spring 1042 is fixedly connected inside the square sleeve 752.

[0035] Specifically, the circular groove 1041 can store and guide the second spring 1042. The second spring 1042 can push the square sleeve 752 upward through its elasticity, thereby improving the stability of the square sleeve 752 and preventing the square sleeve 752 from squeezing the second button switch 753 for a long time, which could cause the second button switch 753 to be damaged and unable to effectively rebound and reset.

[0036] like Figures 1 to 4As shown, a limiting sleeve 11 is fitted on the movable plate 102. One side of the limiting sleeve 11 is fixedly connected to the inside of the sealing sleeve 64, and one side of the sealing sleeve 64 is in contact with the surface of the equipment platform 1.

[0037] Specifically, the limiting sleeve 11 provides precise guidance and limitation for the moving plate 102, preventing the moving plate 102 from shifting or shaking when it moves the brush plate 103, ensuring that the brush plate 103 can be stably attached to the surface of the concrete roller 2, and guaranteeing the cleaning effect.

[0038] like Figures 1 to 3 As shown, the movable sleeve 671 is provided with a tensile-resistant member 12. The tensile-resistant member 12 includes a positioning plate 121 fixedly connected to the movable sleeve 671. A sleeve 122 is fixedly connected to one side of the positioning plate 121. A trapezoidal rod 123 is slidably connected inside the sleeve 122. One end of the trapezoidal rod 123 is fixedly connected to the support sleeve 63.

[0039] Specifically, when the movable sleeve 671 is reset, it can pull the support sleeve 63 through the trapezoidal rod 123 and the sleeve 122, avoiding the situation where the support sleeve 63 is pulled by the spring 672 alone, which is prone to damage to the spring 672, thus improving the service life of the spring 672.

[0040] Working principle and usage process of this invention: Install the test caster 5 in the mounting sleeve of the test frame 4, and apply the required load to the test frame 4 through the counterweight plate so that the test caster 5 fits tightly against the surface of the concrete roller 2. Start the motor 61 and the equipment platform 1. The equipment platform 1 drives the concrete roller 2 to rotate. The motor 61 drives the bidirectional screw 62 to rotate. The bidirectional screw 62 drives the moving sleeve 671 to move smoothly along the limit guide rail 8. The moving sleeve 671 pushes the support sleeve 63 to move synchronously through the spring 672, thereby driving the sealing sleeve 64 to move closer to the test frame 4 until the two sealing sleeves 64 fit together and form a sealed test space together with the surface of the equipment platform 1. After the sealing sleeve 64 is closed, the moving sleeve 671 continues to move to compress the spring 672 and drive the trapezoidal plate 754 to compress the square sleeve 752. The square sleeve 752 slides along the concave plate 751 and presses the button switch 753 to start the dust collection device 71. Outside air enters the sealing sleeve 64 through the air inlet 73, pushing open the sealing plate 74. The dust collection device 71 extracts the suspended residual particles inside through the one-way valve pipe 72. At the same time, the square sleeve 752 moves down, driving the top plate 101 and the moving plate 102 to move. Under the guidance of the limiting sleeve 11, the moving plate 102 drives the brush plate 103 to adhere to the surface of the concrete roller 2. The rotation of the concrete roller 2 is used to clean the particles attached to its surface. When the trapezoidal plate 754 moves to the point of separation from the square sleeve 752, the moving sleeve 671 will press the button switch 674 inside the stop sleeve 673, triggering the fan 682 to start. When the fan 682 is running, under the guidance of the guide sleeve 683, the airflow passes through the metal pipe 681 and the inclined sleeve 66 to form a self-circulating airflow in the sealing sleeve 64, so that the particles generated by the wear of the test caster 5 as it rotates with the concrete roller 2 are evenly suspended and distributed. Finally, the laser detection device 65 is activated to capture particle information in real time, realizing in-situ particle monitoring.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A caster wear resistance testing device with in-situ particle monitoring, comprising a platform (1), wherein a concrete roller (2) and a testing frame (4) are provided on the platform (1), and a test caster (5) is provided inside the testing frame (4), characterized in that, Also includes: A self-circulating sealed detection component (6) is set on the equipment platform (1) to monitor the particles generated by the wear of the test caster (5); The self-circulating sealed detection component (6) includes a bidirectional drive mechanism. Two sealing sleeves (64) are symmetrically connected to the bidirectional drive mechanism. During the detection, the sealing sleeves (64) on both sides surround the contact area between the test caster (5) and the concrete roller (2) to form a sealed detection space. A laser detection device (65) is fixedly installed on the sealing sleeve (64). An inclined sleeve (66) communicating with the sealing sleeve (64) is sleeved on the detection end of the laser detection device (65). An elastic self-starting component (67) is also provided on the output end of the bidirectional drive mechanism. A circulation component (68) is provided on the inclined sleeve (66). The anti-mistest cleaning component (7) is set on one side of the equipment platform (1) and is used to automatically remove dust from the inside of the sealing sleeve (64).

2. The caster wear resistance testing device with in-situ particle monitoring according to claim 1, characterized in that: The bidirectional drive mechanism includes a motor (61) fixedly connected to the equipment platform (1), a bidirectional screw (62) fixedly connected to the output end of the motor (61), a support sleeve (63) symmetrically sleeved on the bidirectional screw (62) and connected to the sealing sleeve (64), the sealing sleeve (64) sleeved on the detection frame (4), the elastic self-starting element (67) includes a movable sleeve (671) threadedly connected to the bidirectional screw (62), a spring (672) fixedly connected to one side of the movable sleeve (671), one end of the spring (672) fixedly connected to the support sleeve (63), a retainer (673) fixedly connected to the support sleeve (63), a push button switch (674) fixedly connected inside the retainer (673), and one side of the push button switch (674) in contact with the movable sleeve (671).

3. The caster wear resistance testing device with in-situ particle monitoring according to claim 2, characterized in that: The equipment platform (1) is fixedly connected to a limiting guide rail (8), and the support sleeve (63) and the moving sleeve (671) are both sleeved on the limiting guide rail (8). The equipment platform (1) is fixedly connected to a sleeve plate (9), and the sleeve plate (9) is sleeved on a bidirectional screw (62).

4. The caster wear resistance testing device with in-situ particle monitoring according to claim 3, characterized in that: The circulation assembly (68) includes a metal tube (681) connected to an inclined sleeve (66), one side of which is connected to a fan (682), one side of which is connected to a sealing sleeve (64), and a flow guide sleeve (683) is fixedly connected inside the sealing sleeve (64), the flow guide sleeve (683) being located on one side of the fan (682).

5. A caster wear resistance testing device with in-situ particle monitoring according to claim 2, characterized in that: The anti-misdetection cleaning component (7) includes a vacuuming device (71) installed on one side of the equipment platform (1). The air inlet of the vacuuming device (71) is connected to a one-way valve pipe (72). One end of the one-way valve pipe (72) is connected to a sealing sleeve (64). Two air inlets (73) are symmetrically opened on the sealing sleeve (64). A sealing plate (74) is hinged inside the sealing sleeve (64) by a torsion spring hinge. The sealing plate (74) is located on one side of the air inlet (73). An automatic opening and closing component (75) connected to the movable sleeve (671) is provided on the equipment platform (1).

6. The caster wear resistance testing device with in-situ particle monitoring according to claim 5, characterized in that: The automatic opening and closing component (75) includes a concave plate (751) fixedly connected to the equipment platform (1), a square sleeve (752) slidably connected inside the concave plate (751), a second push button switch (753) located inside the concave plate (751) fixedly connected to the equipment platform (1), the bottom of the square sleeve (752) contacting the top of the second push button switch (753), and a trapezoidal plate (754) located on one side of the square sleeve (752) fixedly connected to the movable sleeve (671).

7. A caster wear resistance testing device with in-situ particle monitoring according to claim 6, characterized in that: The square sleeve (752) is provided with a self-cleaning assembly (10). The self-cleaning assembly (10) includes a top plate (101) fixedly connected to the square sleeve (752). A movable plate (102) is fixedly connected to the bottom of the top plate (101). The bottom end of the movable plate (102) extends through the interior of the sealing sleeve (64) and is fixedly connected to a brush plate (103). The brush plate (103) is located on one side of the concrete roller (2). A reset member (104) is provided inside the square sleeve (752).

8. The caster wear resistance testing device with in-situ particle monitoring according to claim 7, characterized in that: The reset component (104) includes a circular groove (1041) formed on a concave plate (751), and a second spring (1042) is fixedly connected inside the circular groove (1041). The top end of the second spring (1042) is fixedly connected inside the square sleeve (752).

9. A caster wear resistance testing device with in-situ particle monitoring according to claim 7, characterized in that: A limiting sleeve (11) is fitted on the movable plate (102). One side of the limiting sleeve (11) is fixedly connected to the inside of the sealing sleeve (64), and one side of the sealing sleeve (64) is in contact with the surface of the equipment platform (1).

10. A caster wear resistance testing device with in-situ particle monitoring according to claim 2, characterized in that: The movable sleeve (671) is provided with a tensile-resistant member (12), the tensile-resistant member (12) includes a positioning plate (121) fixedly connected to the movable sleeve (671), a sleeve (122) is fixedly connected to one side of the positioning plate (121), a trapezoidal rod (123) is slidably connected inside the sleeve (122), and one end of the trapezoidal rod (123) is fixedly connected to the support sleeve (63).

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