Device and method for detecting asphalt adhesiveness through soaking centrifugal separation

Abstract

The invention discloses a device and a method for detecting asphalt adhesiveness through soaking centrifugal separation, and mainly relates to the technical field of detection devices. Comprising a workbench, a drying oven used for drying asphalt attached to the surfaces of stones, a centrifugal machine used for separating the stones from the asphalt, an adjusting device and a discharging device, a plurality of supporting columns playing a supporting role are fixedly connected to the lower surface of the workbench, an electric control box is installed on one side of the workbench, and a central processing system is arranged in the electric control box; the drying oven and the centrifugal machine are arranged above the workbench through the discharging device, the discharging device is located on the upper surface of the workbench, the adjusting device is located on the upper surface of the workbench and comprises a material containing assembly and a transferring assembly used for transferring the material containing assembly, and the material containing assembly comprises a material barrel used for containing stones and asphalt. The asphalt adhesiveness detection device has the beneficial effects that the asphalt adhesiveness detection experiment can be automatically carried out, the working intensity of personnel can be reduced, the experiment period is shortened, and the asphalt adhesiveness detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a device and method for detecting asphalt adhesion by centrifugal separation using water. Background Art

[0002] The asphalt adhesion testing device is mainly used to quantitatively evaluate the adhesion performance between asphalt and aggregate, so as to ensure the anti-stripping durability of asphalt pavement.

[0003] Existing technologies include the invention with announcement number CN106996910B, which discloses a test device and method for testing the interface adhesion of asphalt aggregate. The key points of its technical solution are: the bottom opening of the outer cover is snapped onto the control box, the lower end of the lifting rod is connected to the output shaft of the power unit, the upper end of the lifting rod passes through the control box and is inserted into the outer cover, the first clamping device is fixed to the upper end of the lifting rod, the second clamping device is arranged on the control box, the first clamping device is opposite to the second clamping device, one end of the piece to be tested is clamped on the first clamping device, and the other end of the piece to be tested is clamped on the second clamping device, a display is provided on the outer wall of the control box, and a sensor is used to detect the vertical force between the first clamping device and the piece to be tested, the control box is connected to the control end of the power unit, the output end of the sensor and the display, and the device and method can evaluate the adhesion of asphalt aggregate.

[0004] Regarding the relevant content mentioned above, the following technical defects were found: when using the asphalt adhesion detection device in the existing technology, due to the large number of detection steps and the inability to automatically detect the adhesion of asphalt, it will increase the workload of personnel, increase the experimental cycle, and reduce the efficiency of asphalt adhesion detection. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the existing technology that the asphalt adhesion detection device cannot automatically detect the adhesion of asphalt when in use, which increases the workload of personnel, increases the experimental cycle, and reduces the efficiency of asphalt adhesion detection. A device and method for detecting asphalt adhesion by water immersion centrifugal separation is proposed.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a device for detecting asphalt adhesion by water-immersed centrifugal separation, comprising a workbench, an oven for drying asphalt attached to the surface of gravel, a centrifuge for separating gravel and asphalt, an adjusting device and a discharging device, wherein the lower surface of the workbench is fixedly connected to a plurality of supporting columns that play a supporting role, an electric control box is installed on one side of the workbench, and a central processing system is arranged inside the electric control box, the oven and the centrifuge are arranged above the workbench with the help of the discharging device, the discharging device is located on the upper surface of the workbench, the adjusting device is located on the upper surface of the workbench, the adjusting device comprises a material pocket assembly and a transfer assembly for transferring the material pocket assembly, the material pocket assembly comprises a barrel for placing gravel and asphalt, the size of the barrel is adapted to the size of the interior of the oven and the centrifuge, a plurality of circular holes are opened on the outer wall and the lower surface of the barrel, and the bottom of the inner wall of the barrel is fixedly connected to a member to prevent the bottom of the barrel from contacting the center of the centrifuge The upper end of the barrel is fitted with a feed hopper for adding asphalt and stone into the barrel, the inner wall of the feed hopper is fixedly connected with a sealing plate, the upper surface of the sealing plate is fixedly connected with a lower screen plate for screening stones, the sieve holes of the lower screen plate are connected with the feed hopper and the barrel, the outer wall of the feed hopper is fixedly connected with an ear plate that plays a supporting role, the surface of the ear plate is slidably penetrated with a limit rod for guiding the lifting process of the feed hopper, and one end of the short arm end of the limit rod is fixed with a stop rod The outer wall of the barrel is fixedly connected, and the arc surface of the long arm end of the limit rod is sleeved with a reset spring for driving the feed hopper to quickly reset. The two ends of the reset spring are respectively fixedly connected to the limit rod and the ear plate, and the lower surface of the ear plate is fixedly connected with a rack. The outer wall of the barrel is fixedly connected with a motor, and the output end of the motor is fixedly connected with a half-tooth gear for driving the rack to rise and fall, and the half-tooth gear is meshed with the rack. The upper surface of the feed hopper is fixedly connected to a material blocking cover for preventing stones from falling.

[0007] The effects achieved by the above components are: by setting the adjustment device, the asphalt adhesion test experiment can be automatically carried out, which can reduce the workload of personnel, shorten the test cycle, and improve the efficiency of asphalt adhesion testing.

[0008] Preferably, the transfer assembly includes a support frame, one side of the support frame is fixedly connected to the upper surface of the workbench, the cross-section of the support frame is "U"-shaped, one side of the support frame is rotatably connected to two transmission wheels, the arc surfaces of the two transmission wheels are transmission-connected to a belt for controlling the lateral movement of the bag material assembly, the side of the support frame away from the transmission wheel is fixedly connected to a servo motor for driving the transmission wheel to rotate, the output end of the servo motor is fixedly connected to one end of one of the transmission wheels, the lower surface of the outer wall of the belt is fixedly connected to an adjustment block, the adjustment The lower surface of the block is fixedly connected to a cylinder for driving the longitudinal movement of the material bag assembly, and the output end of the cylinder is fixedly connected to a hanging scale for weighing, and the lower surface of the hanging scale is fixedly connected to a hook, the inner wall of the hook is abutted with a hanging ring, and the outer wall of the hanging ring is fixedly connected to a plurality of hanging ropes, and the hanging ropes are fixedly connected to the upper surface of the material blocking cover, and a guide rod for guiding the movement of the adjusting block is slidably penetrated by the side surface of the adjusting block, and both ends of the guide rod are fixedly connected to a limit plate for supporting the guide rod, and the upper surface of the limit plate is fixedly connected to the support frame.

[0009] The effect achieved by the above components is: by setting the above structure, the horizontal position and vertical position of the bag material assembly can be automatically adjusted, so that the bag material assembly can be automatically transferred to an oven or centrifuge, thereby improving the convenience and automation of the asphalt adhesion detection device.

[0010] Preferably, the upper surface of the lower sieve plate is fitted with an upper sieve plate, the sieve holes of the upper sieve plate are the same size as the sieve holes of the lower sieve plate, the outer wall of the feed hopper is fixedly connected to a motor seat that plays a supporting role, the inner wall of the motor seat is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a screw rod, the arc surface of the screw rod is threadedly connected to a connecting plate for driving the upper sieve plate to move, the lower surface of the connecting plate is fixedly connected to the upper surface of the upper sieve plate, the upper surface of the connecting plate is fixedly connected to a positioning plate, the side of the positioning plate is slidably penetrated with a positioning rod for preventing the connecting plate from rotating and deviating during the movement process, and one end of the positioning rod is fixedly connected to the outer wall of the motor seat.

[0011] The effect achieved by the above components is: by setting the above structure, the size of the holes composed of the sieve holes of the upper sieve plate and the sieve holes of the lower sieve plate can be automatically adjusted, so that the device can screen stones of different sizes, and then stones of different sizes can be selected for asphalt adhesion testing. The test results of stones of a single size may have limitations, and multi-size tests provide more data points, which can enhance the statistical significance and reliability of the adhesion test results.

[0012] Preferably, a scale is provided on the upper surface of the sealing plate, and a pointer is fixedly connected to the upper surface of the upper sieve plate.

[0013] The effect achieved by the above components is that by setting the scale and the pointer, the size of the hole formed by the sieve holes of the upper sieve plate and the sieve holes of the lower sieve plate can be accurately adjusted.

[0014] Preferably, a tooth hole is provided on the side of the half-tooth gear away from the motor, and a support plate is fixedly connected to the outer wall of the barrel for supporting the gear. An electric push rod is fixedly connected to one side of the support plate, and a tooth block is fixedly connected to the output end of the electric push rod for locking the half-tooth gear, and the tooth block is adapted to the size of the tooth hole.

[0015] The effect achieved by the above components is: by setting the above structure, when the half-tooth gear rotates to drive the feed hopper to move to the appropriate position, the gear block can be automatically driven to lock the half-tooth gear, thereby improving the stability of the feed hopper after it moves to the appropriate position.

[0016] Preferably, a protective cover is fixedly connected to the outer wall of the barrel, and the motor, the half-tooth gear, the electric push rod and the gear block are located inside the protective cover.

[0017] The effect achieved by the above components is: by setting up a protective cover, the motor, half-tooth gear, electric push rod and gear block can be covered and protected, thereby increasing the service life of these parts and improving the smoothness of the operation of the upper screen plate.

[0018] Preferably, the regulating device also includes a water tank for storing water, one side of the water tank is fixedly connected to one side of the workbench, a delivery pump is installed inside the water tank, the upper surface of the water tank is fixedly connected to a water inlet pipe and a bellows, and the end of the bellows away from the water tank is fixedly connected to a nozzle for spraying water into the inside of the centrifuge.

[0019] The effect achieved by the above components is: by setting the above structure, personnel can conveniently perform the water adding step, thereby improving the convenience of using the asphalt adhesion detection device.

[0020] Preferably, the discharging device includes an oil cylinder, which is fixed to the upper surface of the workbench, and the output end of the oil cylinder is fixedly connected to a rotating seat, and the inner wall of the rotating seat is rotatably connected to a connecting plate for driving the oven and the centrifuge to move and flip, the upper surface of the connecting plate is fixedly connected to the lower surface of the oven and the centrifuge, and the upper surface of the connecting plate is fixedly connected to a sewage collecting box for receiving water and asphalt flowing out of the barrel, one side of the workbench is fixedly connected to a collection box for storing waste inside the oven, the sewage collecting box and the centrifuge, one side of the outer wall of the collection box is fixedly connected to an outlet pipe, and the inner wall of the outlet pipe is fixedly connected to a sealing plug for sealing the outlet pipe.

[0021] The effect achieved by the above components is: by setting up a discharge device, when the asphalt adhesion test operation is completed, the oven, dirt collection box and centrifuge can be automatically driven to perform a dumping action to discharge the internal waste, which facilitates the next use of the asphalt adhesion test device.

[0022] Preferably, a plurality of baffles are fixedly connected to the upper surface of the workbench so that the rotating seat can quickly move to a specified position, and one side of the baffle is in contact with the rotating seat.

[0023] The effect achieved by the above components is: by setting the rotating seat, when the oil cylinder drives the rotating seat to fit one side of the baffle, the operation of the oil cylinder can be stopped, so that the rotating seat can be quickly moved to the specified position.

[0024] A method for detecting asphalt adhesion by centrifugal separation using immersion in water comprises the following steps: S1, first screen the stones and put them into the barrel. Then use the transfer component to drive the barrel into the oven containing a certain amount of asphalt, so that the stones are coated with asphalt. S2, using the transfer assembly to drive the barrel to cool the asphalt-coated stones, and weighing the asphalt-coated stones after cooling; S3, using the transfer component, placing the gravel coated with asphalt into a centrifuge filled with water, and starting the centrifuge to separate the gravel and asphalt; S4. After the centrifuge is running, the bag material assembly is fished out from the inside of the centrifuge, and after being fished out and dried, the mass of the gravel wrapped after centrifugation is measured, and finally the mass difference is used to judge the asphalt adhesion strength.

[0025] In summary, the beneficial effects of the present invention are: In the present invention, by providing an adjustment device, the asphalt adhesion detection experiment can be automatically performed, which can reduce the workload of personnel, shorten the experimental cycle, and improve the efficiency of asphalt adhesion detection.

[0026] In the present invention, by setting up a discharge device, when the asphalt adhesion detection operation is completed, the oven, the dirt collecting box and the centrifuge can be automatically driven to perform a dumping action to discharge the waste inside, which is convenient for the next use of the asphalt adhesion detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Attachment Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Attachment Figure 2 The present invention Figure 1 The structural diagram on the left; Attachment Figure 3 It is a schematic structural diagram of the regulating device of the present invention; Attachment Figure 4 It is a schematic structural diagram of the pocket material assembly in the adjusting device of the present invention; Attachment Figure 5 This is a schematic diagram of the partial disassembly of the pocket material assembly of the present invention; Attachment Figure 6 The present invention Figure 4 The schematic diagram of the local structure shown; Attachment Figure 7 It is a partial structural schematic diagram of the pocket material assembly of the present invention; Attachment Figure 8 It is a schematic structural diagram of the interior of the barrel of the present invention; Attachment Figure 9 It is a schematic structural diagram of the transport component in the regulating device of the present invention; Attachment Figure 10 It is a schematic structural diagram of the water tank of the present invention; Attachment Figure 11 It is a structural schematic diagram of the discharge device of the present invention.

[0028] 3101, barrel; 3102, round hole; 3103, round cover; 3104, feed hopper; 3105, blocking cover; 3106, sealing plate; 3107, lower sieve plate; 3108, upper sieve plate; 3109, motor seat; 3110, drive motor; 3111, screw rod; 3112, connecting plate; 3113, positioning plate; 3114, positioning rod; 3115, scale; 3116, pointer; 3117, ear plate; 3118, limit rod; 3119, return spring; 3120, rack; 3121, motor; 3122, half-tooth gear; 3123, tooth hole; 3124, support plate; 3125, gear box; 3126, gear box; 3127, gear box; 3128, gear box; 3129, gear box; 3130, gear box; 3131, gear box; 3132, gear box; 3133, gear box; 3134, gear box; 3135, gear box; 3136, gear box; 3137, gear box; 3138, gear box; 3139, gear box; 3140, gear box; 3141, gear box; 3142, gear box; 3143, gear box; 3144, gear box; 3145, gear box; 3146, gear box; 3147, gear box; 3148, gear box; 3149, gear box; 3150, gear box; 3151, gear box; 3152, gear box; 3153, gear box; 3154, gear box; 3155, gear box; 3156, gear box; 31 125. Electric push rod; 3126. Gear block; 3127. Protective cover; 32. Transfer assembly; 3201. Support frame; 3202. Drive wheel; 3203. Belt; 3204. Servo motor; 3205. Adjustment block; 3206. Cylinder; 3207. Hanging scale; 3208. Hook; 3209. Lifting ring; 3210. Lifting rope; 3211. Guide rod; 3212. Limit plate; 33. Water tank; 34. Water inlet pipe; 35. Bellows; 36. Nozzle; 4. Discharge device; 401. Cylinder; 402. Rotating seat; 403. Connecting plate; 404. Dirt box; 405. Baffle; 406. Collection box; 407. Outlet pipe; 408. Sealing plug; 5. Electric control box; 6. Oven; 7. Centrifuge. DETAILED DESCRIPTION

[0029] Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiments are only used to illustrate the present invention and are not used in limiting the scope of the present invention.In addition, should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall equally within the scope limited by the appended claims of the application.

[0030] Reference Figure 1 and Figure 2 As shown, the present invention provides a technical solution: an immersion centrifugal separation device for detecting asphalt adhesion, comprising a workbench 1, an oven 6 for drying asphalt attached to the surface of gravel, a centrifuge 7 for separating gravel and asphalt, an adjusting device 3 and a discharging device 4. A plurality of supporting columns 2 are fixedly connected to the lower surface of the workbench 1 for supporting the workbench 1, an electric control box 5 is installed on one side of the workbench 1, and a central processing system is arranged inside the electric control box 5. The oven 6 and the centrifuge 7 are arranged above the workbench 1 with the aid of the discharging device 4.

[0031] The discharging device 4 is located on the upper surface of the workbench 1 , and the adjusting device 3 is located on the upper surface of the workbench 1 .

[0032] The specific settings and functions of the regulating device 3 and the discharging device 4 are described in detail below.

[0033] Reference Figures 3 to 10As shown, in this embodiment: the regulating device 3 includes a bag material component 31, a transfer component 32 for transferring the bag material component 31, the bag material component 31 includes a barrel 3101 for placing gravel and asphalt, the size of the barrel 3101 is adapted to the size of the inside of the oven 6 and the centrifuge 7, the outer wall and the lower surface of the barrel 3101 are provided with a plurality of circular holes 3102, the bottom of the inner wall of the barrel 3101 is fixedly connected to prevent the bottom of the barrel 3101 from contacting The central part of the centrifuge 7 is provided with a circular cover 3103 where the components collide. The upper end of the barrel 3101 is fitted with a feed hopper 3104 for adding asphalt and gravel into the barrel 3101. The inner wall of the feed hopper 3104 is fixedly connected with a sealing plate 3106. The upper surface of the sealing plate 3106 is fixedly connected with a lower sieve plate 3107 for screening gravel. The sieve holes of the lower sieve plate 3107 are connected to the feed hopper 3104 and the barrel 3101. 4 is fixedly connected to the outer wall of the barrel 3101 with an ear plate 3117 that plays a supporting role. A limit rod 3118 is slidably penetrated on the surface of the ear plate 3117 to guide the lifting process of the feed hopper 3104. One end of the short arm end of the limit rod 3118 is fixedly connected to the outer wall of the barrel 3101, and the arc surface of the long arm end of the limit rod 3118 is covered with a return spring 3119 for driving the feed hopper 3104 to quickly return. The two ends of the return spring 3119 are respectively connected to the limit rod 3118. The positioning rod 3118 is fixedly connected to the ear plate 3117, the lower surface of the ear plate 3117 is fixedly connected to the rack 3120, the outer wall of the barrel 3101 is fixedly connected to the motor 3121, the output end of the motor 3121 is fixedly connected to the half-tooth gear 3122 for driving the rack 3120 to rise and fall, the half-tooth gear 3122 is meshed with the rack 3120, and the upper surface of the feed hopper 3104 is fixedly connected to the material blocking cover 3105 for preventing stones from falling.When the gear 3122 is in meshing state with the rack 3120, the gear 3122 drives the rack 3120 to drive the ear plate 3117, and the ear plate 3117 drives the feed hopper 3104 to rise. Then, with the rotation of the gear 3122, the meshing state of the gear 3122 and the rack 3120 is changed to a non-meshing state, and the return spring 3119 drives the ear plate 3117 to move downward rapidly along the arc surface of the limit rod 3118, and the ear plate 3117 drives the feed hopper 3104 to move downward until the lower end of the feed hopper 3104 is in fit with the upper end of the barrel 3101. The half-tooth gear 3122 and the rack 3120 continuously transform between the meshing and non-meshing states, thereby controlling the vibration of the feed hopper 3104, so that the lower screen plate 3107 can screen the stones, allowing the stones to pass through the screen holes and enter the space formed by the barrel 3101 and the round cover 3103. The barrel 3101 is then placed in an oven 6 containing a certain amount of asphalt, so that the stones are coated with asphalt material. The bag assembly 31 is then taken out of the oven 6 and the stones coated with asphalt are allowed to cool. While cooling, water is added to the centrifuge 7. After the stones are cooled, they are weighed. The bag assembly 31 is then transferred to place the stones coated with asphalt into the centrifuge 7 filled with water. The centrifuge 7 is then started to separate the stones and asphalt. After the centrifuge 7 is running, the bag assembly 31 is taken out from the inside of the centrifuge 7, and after being taken out and dried, the quality of the stones coated after centrifugation is measured. Finally, the quality difference is used to judge the asphalt adhesion strength.

[0034] The transfer assembly 32 includes a support frame 3201, one side of the support frame 3201 is fixedly connected to the upper surface of the workbench 1, the cross-section of the support frame 3201 is "U"-shaped, one side of the support frame 3201 is rotatably connected to two transmission wheels 3202, the arc surface transmission connection of the two transmission wheels 3202 is used to control a belt 3203 for lateral movement of the bag material assembly 31, the side of the support frame 3201 away from the transmission wheel 3202 is fixedly connected to a servo motor 3204 for driving the transmission wheel 3202 to rotate, the output end of the servo motor 3204 is fixedly connected to one end of one of the transmission wheels 3202, the lower surface of the outer wall of the belt 3203 is fixedly connected to an adjustment block 3205, and the lower surface of the adjustment block 3205 is fixed It is connected to a cylinder 3206 for driving the longitudinal movement of the material bag assembly 31, and the output end of the cylinder 3206 is fixedly connected to a hanging scale 3207 for weighing, and a hook 3208 is fixedly connected to the lower surface of the hanging scale 3207, and the inner wall of the hook 3208 is abutted with a hanging ring 3209, and the outer wall of the hanging ring 3209 is fixedly connected to a plurality of hanging ropes 3210, and the hanging ropes 3210 are fixedly connected to the upper surface of the material blocking cover 3105, and a guide rod 3211 for guiding the movement of the adjusting block 3205 is slid through the side of the adjusting block 3205, and both ends of the guide rod 3211 are fixedly connected to a limit plate 3212 for supporting the guide rod 3211, and the upper surface of the limit plate 3212 is fixedly connected to the support frame 3201. When the transfer assembly 32 is needed to transfer the bag material assembly 31, the servo motor 3204 is first started to drive one of the transmission wheels 3202 to rotate, so that the belt 3203 runs in the limit of the two transmission wheels 3202. During the movement of the belt 3203, the adjustment block 3205 is driven to move in the guide of the guide rod 3211. The adjustment block 3205 drives the cylinder 3206, the hook 3208 and the ring 3209 to move horizontally. The ring 320 9 drives the bag material assembly 31 to move horizontally, so that the horizontal position of the bag material assembly 31 can be adjusted. When the longitudinal position of the bag material assembly 31 needs to be adjusted, the cylinder 3206 is started to drive the hook 3208 to move up and down, and the hook 3208 drives the lifting ring 3209, the lifting rope 3210 and the bag material assembly 31 to move up and down, so that the longitudinal position of the bag material assembly 31 can be adjusted. Among them, the hanging scale 3207 can weigh the weight of the stones wrapped with asphalt on the outside of the bag material assembly 31.

[0035] The upper surface of the lower sieve plate 3107 is fitted with the upper sieve plate 3108, and the sieve holes of the upper sieve plate 3108 are the same size as the sieve holes of the lower sieve plate 3107. The outer wall of the feed hopper 3104 is fixedly connected to the motor seat 3109 which plays a supporting role, and the inner wall of the motor seat 3109 is fixedly connected to the drive motor 3110, and the output end of the drive motor 3110 is fixedly connected to the screw rod 3111, and the arc surface of the screw rod 3111 is threadedly connected to the connecting plate 3112 for driving the upper sieve plate 3108 to move. The lower surface of the connecting plate 3112 is fixedly connected to the upper surface of the upper sieve plate 3108, and the upper surface of the connecting plate 3112 is fixedly connected to the positioning plate 3113. The side of the positioning plate 3113 is slidably penetrated with a positioning rod 3114 for preventing the connecting plate 3112 from rotating and deviating during the movement process. One end of the positioning rod 3114 is fixedly connected to the outer wall of the motor seat 3109. When the size of the sieve hole needs to be adjusted to screen stones of different sizes, the drive motor 3110 is started to drive the screw rod 3111 to rotate, and the screw rod 3111 drives the connecting plate 3112 to move along its arc surface. During the movement of the connecting plate 3112, the positioning plate 3113 fixed on the connecting plate 3112 will move along the arc surface of the positioning rod 3114, thereby avoiding rotational deviation during the movement of the connecting plate 3112. When the connecting plate 3112 moves, it will drive the upper screen plate 3108 to move. As the upper screen plate 3108 moves, the screen of the upper screen plate 3108 is The size of the hole formed by the sieve holes of the upper sieve plate 3108 and the sieve holes of the lower sieve plate 3107 will change. When the hole is adjusted to the appropriate size, the operation of the drive motor 3110 can be stopped. By setting the above structure, the size of the hole formed by the sieve holes of the upper sieve plate 3108 and the sieve holes of the lower sieve plate 3107 can be automatically adjusted, so that the device can screen stones of different sizes, and then stones of different sizes can be selected for asphalt adhesion testing. The test results of stones of a single size may have limitations. Multi-size tests provide more data points, which can enhance the statistical significance and reliability of the adhesion test results.

[0036] The upper surface of the sealing plate 3106 is provided with a scale 3115, and the upper surface of the upper sieve plate 3108 is fixedly connected with a pointer 3116. By setting the scale 3115 and the pointer 3116, the size of the hole formed by the sieve holes of the upper sieve plate 3108 and the sieve holes of the lower sieve plate 3107 can be accurately adjusted.

[0037] A tooth hole 3123 is provided on the side of the half-tooth gear 3122 away from the motor 3121. The outer wall of the barrel 3101 is fixedly connected to a support plate 3124 that serves as a support. One side of the support plate 3124 is fixedly connected to an electric push rod 3125. The output end of the electric push rod 3125 is fixedly connected to a tooth block 3126 for locking the half-tooth gear 3122. The tooth block 3126 is adapted to the size of the tooth hole 3123. When it is necessary to lock the half-tooth gear 3122, first start the electric push rod 3125 to drive the tooth block 3126, so that the tooth block 3126 moves toward the direction close to the tooth hole 3123. When the tooth block 3126 is inserted into the interior of the tooth hole 3123, the locking of the half-tooth gear 3122 can be completed. By setting the above structure, when the half-tooth gear 3122 rotates to drive the feed hopper 3104 to move to the appropriate position, the tooth block 3126 can be automatically driven to lock the half-tooth gear 3122, thereby improving the stability of the feed hopper 3104 after it moves to the appropriate position.

[0038] A protective cover 3127 is fixedly connected to the outer wall of the barrel 3101, and the motor 3121, the half-toothed gear 3122, the electric push rod 3125, and the gear block 3126 are located inside the protective cover 3127. By providing the protective cover 3127, the motor 3121, the half-toothed gear 3122, the electric push rod 3125, and the gear block 3126 can be covered and protected, thereby increasing the service life of these parts and improving the smooth operation of the upper screen plate 3108.

[0039] The regulating device 3 also includes a water tank 33 for storing water. One side of the water tank 33 is fixedly connected to one side of the workbench 1. A delivery pump is installed inside the water tank 33. A water inlet pipe 34 and a bellows 35 are fixedly connected to the upper surface of the water tank 33. The end of the bellows 35 away from the water tank 33 is fixedly connected to a nozzle 36 for spraying water into the interior of the centrifuge 7. When water needs to be added to the interior of the centrifuge 7, a person can move the nozzle 36 to align it with the interior of the centrifuge 7, and then start the delivery pump inside the water tank 33, so that water is sprayed into the interior of the centrifuge 7 along the bellows 35 and the nozzle 36. When the water inside the water tank 33 is scarce, a person can add water to the interior of the water tank 33 through the water inlet pipe 34. By providing the above structure, a person can conveniently perform the water adding step, thereby improving the ease of use of the asphalt adhesion detection device.

[0040] Reference Figure 11As shown, in this embodiment: the discharging device 4 includes a cylinder 401, the cylinder 401 is fixed on the upper surface of the workbench 1, and the output end of the cylinder 401 is fixedly connected to a rotating seat 402, and the inner wall of the rotating seat 402 is rotatably connected to a connecting plate 403 for driving the oven 6 and the centrifuge 7 to move and flip, the upper surface of the connecting plate 403 is fixedly connected to the lower surface of the oven 6 and the centrifuge 7, and the upper surface of the connecting plate 403 is fixedly connected to a collecting box 404 for receiving water and asphalt flowing out of the barrel 3101, and one side of the workbench 1 is fixedly connected to a collecting box 406 for storing waste materials inside the oven 6, the collecting box 404 and the centrifuge 7, and one side of the outer wall of the collecting box 406 is fixedly connected to an outlet pipe 407, and the inner wall of the outlet pipe 407 is fixedly connected to a sealing plug 408 for sealing the outlet pipe 407. When the asphalt adhesion test is completed and the waste materials in the drying oven 6, the dirt collecting box 404 and the centrifuge 7 need to be poured into the collection box 406, the oil cylinder 401 is first started to drive the rotating seat 402, so that the rotating seat 402 drives the connecting plate 403 to move toward the collection box 406, and the connecting plate 403 drives the drying oven 6, the centrifuge 7 and the dirt collecting box 404. When the oil cylinder 401 drives the rotating seat 402 to move out of the top of the workbench 1, the connecting plate 403 rotates along the inner wall of the rotating seat 402 under the action of its own gravity. At this time, the connecting plate 403 drives the drying oven 6, the centrifuge 7 and the dirt collecting box 404. The dirt collecting box 404 and the centrifuge 7 rotate synchronously, so that the drying oven 6, the dirt collecting box 404 and the centrifuge 7 can automatically perform a dumping action, so that the waste inside the drying oven 6, the dirt collecting box 404 and the centrifuge 7 can be poured into the collection box 406. When the dumping is completed, the oil cylinder 401 is started again to drive the rotating seat 402 to move in the opposite direction, so that the rotating seat 402 and the connecting plate 403 are reset. After the reset, the operation of the oil cylinder 401 can be stopped, and the waste discharge operation can be completed. When the collection box 406 is full, the sealing plug 408 can be opened to allow the waste to be discharged along the outlet pipe 407.

[0041] Several baffles 405 are fixedly connected to the upper surface of the workbench 1 to enable the rotating base 402 to move quickly to a designated position. One side of the baffle 405 is in contact with the rotating base 402. By providing the rotating base 402, once the oil cylinder 401 drives the rotating base 402 to contact one side of the baffle 405, the oil cylinder 401 can be stopped, allowing the rotating base 402 to move quickly to the designated position.

[0042] Detailed description of usage: When the device is needed to test the adhesion of asphalt, first put the stone into the material blocking cover 3105, then start the motor 3121 to drive the half-tooth gear 3122 to rotate. When the half-tooth gear 3122 is in meshing state with the rack 3120, the half-tooth gear 3122 will drive the rack 3120, so that the rack 3120 drives the ear plate 3117, and the ear plate 3117 drives the height of the feed hopper 3104 to rise, and then As the half-tooth gear 3122 rotates, the meshing state of the half-tooth gear 3122 and the rack 3120 will change to a non-meshing state. At this time, the return spring 3119 will drive the ear plate 3117, causing the ear plate 3117 to move downward rapidly along the arc surface of the limit rod 3118. The ear plate 3117 drives the feed hopper 3104 to move downward until the lower end of the feed hopper 3104 fits with the upper end of the barrel 3101. Through the continuous operation of the motor 3121 , which can make the half-tooth gear 3122 and the rack 3120 continuously transform between the meshing and non-meshing states, thereby controlling the vibration of the feed hopper 3104, so that the lower screen plate 3107 can screen the stones, so that the stones pass through the screen holes and enter the space formed by the barrel 3101 and the round cover 3103, and then the barrel 3101 is placed in the drying oven 6 containing a certain amount of asphalt, so that the stones are coated with asphalt material, and then the bag material component 31 is taken out from the drying oven 6 and the stones coated with asphalt are cooled, and water is added to the centrifuge 7 while cooling. After the stones are cooled, they are weighed, and then the bag material component 31 is transferred to put the stones coated with asphalt into the centrifuge 7 filled with water, and then the centrifuge 7 is started to separate the stones and asphalt. After the centrifuge 7 is running, the bag material component 31 is taken out from the inside of the centrifuge 7, and after being taken out and dried, the quality of the stones coated after centrifugation is measured, and finally the quality difference is used to judge the asphalt adhesion strength.

[0043] When the asphalt adhesion test is completed and the waste materials inside the drying oven 6, the dirt collecting box 404 and the centrifuge 7 need to be poured into the collection box 406, the oil cylinder 401 is first started to drive the rotating seat 402, so that the rotating seat 402 drives the connecting plate 403 to move toward the collection box 406, and the connecting plate 403 drives the drying oven 6, the centrifuge 7 and the dirt collecting box 404. When the oil cylinder 401 drives the rotating seat 402 to move out of the top of the workbench 1, the connecting plate 403 will rotate along the inner wall of the rotating seat 402 under the action of its own gravity. At this time, the connecting plate 403 will drive the drying oven 6, the dirt collecting box 404 and the centrifuge 7 to rotate synchronously, so that the drying oven 6, the dirt collecting box 404 and the centrifuge 7 can The dumping action is automatically performed, so that the waste inside the drying oven 6, the dirt collecting box 404 and the centrifuge 7 can be poured into the collection box 406. When the dumping is completed, the oil cylinder 401 is started again to drive the rotating seat 402 to move in the opposite direction, so that the rotating seat 402 and the connecting plate 403 are reset. After the reset, the operation of the oil cylinder 401 can be stopped, and the waste discharge operation can be completed. When the collection box 406 is full, the sealing plug 408 can be opened to allow the waste to be discharged along the outlet pipe 407. Among them, by setting the rotating seat 402, when the oil cylinder 401 drives the rotating seat 402 to fit with one side of the baffle 405, the operation of the oil cylinder 401 can be stopped, so that the rotating seat 402 can be quickly moved to the specified position.

[0044] A method for detecting asphalt adhesion by centrifugal separation using water, applied to claim 1 9. Any one of the apparatuses for detecting asphalt adhesion by centrifugal separation using water, comprising the following steps: S1, first screen the stones and let them enter the barrel 3101. Then, the transfer assembly 32 drives the barrel 3101 into the oven 6 containing a fixed amount of asphalt, so that the stones are coated with asphalt. S2, using the transfer assembly 32 to drive the barrel 3101 to cool the asphalt-coated stones, and weighing the asphalt-coated stones after cooling; S3, using the transfer assembly 32, the gravel coated with asphalt is placed into the centrifuge 7 filled with water, and the centrifuge 7 is started to separate the gravel and asphalt; S4, after the centrifuge 7 is running, the bag material assembly 31 is fished out from the inside of the centrifuge 7, fished out and dried, and then the mass of the stone wrapped after centrifugation is measured, and finally the mass difference is used to judge the asphalt adhesion strength.

Claims

1. A device for detecting asphalt adhesion by centrifugal separation using immersion water, comprising a workbench (1), an oven (6) for drying asphalt attached to the surface of stones, a centrifuge (7) for separating stones from asphalt, a regulating device (3) and a discharge device (4), characterized in that: The lower surface of the workbench (1) is fixedly connected to a plurality of support columns (2) for supporting the workbench (1). An electric control box (5) is installed on one side of the workbench (1). A central processing system is provided inside the electric control box (5). The oven (6) and the centrifuge (7) are arranged above the workbench (1) with the aid of the discharge device (4). The discharge device (4) is located on the upper surface of the workbench (1). The adjustment device (3) is located on the upper surface of the workbench (1). The adjustment device (3) includes a bag material component (31) and a transfer component (32) for transferring the bag material component (31). The bag material component (31) includes a container for placing stones and asphalt. The material barrel (3101) is green, and the size of the material barrel (3101) is adapted to the size of the interior of the oven (6) and the centrifuge (7). The outer wall and the lower surface of the material barrel (3101) are provided with a plurality of circular holes (3102). The bottom of the inner wall of the material barrel (3101) is fixedly connected with a circular cover (3103) for preventing the bottom of the material barrel (3101) from colliding with the components in the center of the centrifuge (7). The upper end of the material barrel (3101) is fitted with a feed hopper (3104) for adding asphalt and gravel into the material barrel (3101). The inner wall of the feed hopper (3104) is fixedly connected with a sealing plate (3106). The sealing plate (3107) is fixedly connected to the inner wall of the material barrel (3101). The upper surface of the feeding hopper (3104) is fixedly connected to a lower sieve plate (3107) for screening stones, the sieve holes of the lower sieve plate (3107) are connected to the feeding hopper (3104) and the barrel (3101), the outer wall of the feeding hopper (3104) is fixedly connected to an ear plate (3117) for supporting, the surface of the ear plate (3117 is slidably penetrated with a limit rod (3118) for guiding the lifting process of the feeding hopper (3104), one end of the short arm end of the limit rod (3118) is fixedly connected to the outer wall of the barrel (3101), and the arc surface of the long arm end of the limit rod (3118) is used to drive the feeding hopper (3104) to move quickly. The return spring (3119) is fixedly connected to the limit rod (3118) and the ear plate (3117) at both ends, and the lower surface of the ear plate (3117) is fixedly connected to the rack (3120). The outer wall of the barrel (3101) is fixedly connected to the motor (3121). The output end of the motor (3121) is fixedly connected to a half-toothed gear (3122) for driving the rack (3120) to rise and fall. The half-toothed gear (3122) is meshed with the rack (3120). The upper surface of the feed hopper (3104) is fixedly connected to a material blocking cover (3105) for preventing stones from falling.

2. The device for detecting asphalt adhesion by centrifugal separation using water immersion according to claim 1, characterized in that: The transfer assembly (32) includes a support frame (3201), one side of the support frame (3201) is fixedly connected to the upper surface of the workbench (1), the cross-section of the support frame (3201) is "U"-shaped, one side of the support frame (3201) is rotatably connected to two transmission wheels (3202), the arc surface transmission connection of the two transmission wheels (3202) is used to control a belt (3203) for lateral movement of the bag material assembly (31), the side of the support frame (3201) away from the transmission wheels (3202) is fixedly connected to a servo motor (3204) for driving the transmission wheels (3202) to rotate, the output end of the servo motor (3204) is fixedly connected to one end of one of the transmission wheels (3202), the lower surface of the outer wall of the belt (3203) is fixedly connected to an adjustment block (3205), and the lower surface of the adjustment block (3205) is fixedly connected to the upper surface of the outer wall of the belt (3203). A cylinder (3206) is connected to drive the material bag assembly (31) to move longitudinally, the output end of the cylinder (3206) is fixedly connected to a hanging scale (3207) for weighing, the lower surface of the hanging scale (3207) is fixedly connected to a hook (3208), the inner wall of the hook (3208) is in contact with a hanging ring (3209), the outer wall of the hanging ring (3209) is fixedly connected to a plurality of hanging ropes (3210), the hanging ropes (3210) are fixedly connected to the upper surface of the material blocking cover (3105), the side surface of the adjusting block (3205) is slidably penetrated by a guide rod (3211) for guiding the movement of the adjusting block (3205), both ends of the guide rod (3211) are fixedly connected to a limit plate (3212) for supporting the guide rod (3211), and the upper surface of the limit plate (3212) is fixedly connected to the support frame (3201).

3. The device for detecting asphalt adhesion by centrifugal separation using water immersion according to claim 2, characterized in that: The upper surface of the lower sieve plate (3107) is attached to the upper sieve plate (3108), and the sieve holes of the upper sieve plate (3108) are the same size as the sieve holes of the lower sieve plate (3107). The outer wall of the feed hopper (3104) is fixedly connected to a motor seat (3109) that plays a supporting role. The inner wall of the motor seat (3109) is fixedly connected to a driving motor (3110). The output end of the driving motor (3110) is fixedly connected to a screw rod (3111). The arc surface thread connection of the screw rod (3111) is useful. A connecting plate (3112) is provided for driving the upper sieve plate (3108) to move. The lower surface of the connecting plate (3112) is fixedly connected to the upper surface of the upper sieve plate (3108). The upper surface of the connecting plate (3112) is fixedly connected to a positioning plate (3113). A positioning rod (3114) is slidably penetrated through the side surface of the positioning plate (3113) to prevent the connecting plate (3112) from rotating and deviating during movement. One end of the positioning rod (3114) is fixedly connected to the outer wall of the motor base (3109).

4. The device for detecting asphalt adhesion by centrifugal separation using water immersion according to claim 3, characterized in that: A scale (3115) is provided on the upper surface of the sealing plate (3106), and a pointer (3116) is fixedly connected to the upper surface of the upper sieve plate (3108).

5. The device for detecting asphalt adhesion by centrifugal separation using water immersion according to claim 4, characterized in that: A tooth hole (3123) is provided on the side of the half-tooth gear (3122) away from the motor (3121), and a support plate (3124) is fixedly connected to the outer wall of the barrel (3101) for supporting the gear. An electric push rod (3125) is fixedly connected to one side of the support plate (3124), and a tooth block (3126) for locking the half-tooth gear (3122) is fixedly connected to the output end of the electric push rod (3125), and the tooth block (3126) is adapted to the size of the tooth hole (3123).

6. The device for detecting asphalt adhesion by centrifugal separation using water immersion according to claim 5, characterized in that: The outer wall of the barrel (3101) is fixedly connected to a protective cover (3127), and the motor (3121), the half-tooth gear (3122), the electric push rod (3125) and the gear block (3126) are located inside the protective cover (3127).

7. The device for detecting asphalt adhesion by centrifugal separation using water immersion according to claim 6, characterized in that: The regulating device (3) further comprises a water tank (33) for storing water, one side of the water tank (33) being fixedly connected to one side of the workbench (1), a delivery pump being installed inside the water tank (33), a water inlet pipe (34) and a bellows (35) being fixedly connected to the upper surface of the water tank (33), and an end of the bellows (35) away from the water tank (33) being fixedly connected to a nozzle (36) for spraying water into the interior of the centrifuge (7).

8. The device for detecting asphalt adhesion by centrifugal separation using water immersion according to claim 7, characterized in that: The discharging device (4) includes an oil cylinder (401), the oil cylinder (401) is fixed to the upper surface of the workbench (1), the output end of the oil cylinder (401) is fixedly connected to a rotating seat (402), the inner wall of the rotating seat (402) is rotatably connected to a connecting plate (403) for driving the oven (6) and the centrifuge (7) to move and flip, the upper surface of the connecting plate (403) is fixedly connected to the lower surface of the oven (6) and the centrifuge (7), and the connecting plate A dirt collecting box (404) for collecting water and asphalt flowing out of the barrel (3101) is fixedly connected to the upper surface of (403), and a collecting box (406) for storing waste materials inside the drying oven (6), the dirt collecting box (404) and the centrifuge (7) is fixedly connected to one side of the workbench (1). An outlet pipe (407) is fixedly connected to one side of the outer wall of the collecting box (406), and a sealing plug (408) for sealing the outlet pipe (407) is fixedly connected to the inner wall of the outlet pipe (407).

9. The device for detecting asphalt adhesion by centrifugal separation using water immersion according to claim 8, characterized in that: A plurality of baffles (405) are fixedly connected to the upper surface of the workbench (1) so as to enable the rotating seat (402) to quickly move to a designated position, and one side of the baffles (405) is in contact with the rotating seat (402).

10. A method for detecting asphalt adhesion by centrifugal separation using water immersion, using the device for detecting asphalt adhesion by centrifugal separation using water immersion according to any one of claims 1 to 9, characterized in that: The steps include: S1, first screen the stones, so that the screened stones enter the barrel (3101), and then use the transfer component (32) to drive the barrel (3101) into the oven (6) containing a fixed amount of asphalt, so that the stones are coated with asphalt material; S2, using the transfer assembly (32) to drive the barrel (3101) to cool the asphalt-coated stones, and weighing the asphalt-coated stones after cooling; S3, using the transfer assembly (32), the gravel coated with asphalt is placed into a centrifuge (7) filled with water, and the centrifuge (7) is started to separate the gravel and asphalt; S4, after the centrifuge (7) is running, the bag material assembly (31) is fished out from the inside of the centrifuge (7), fished out and dried, and then the mass of the stone wrapped after centrifugation is measured, and finally the mass difference is used to judge the asphalt adhesion strength.

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