A high-viscoelastic modified ultra-thin asphalt wearing layer testing device and method

Abstract

The application relates to the technical field of asphalt viscosity detection, in particular to a high-viscoelastic modified ultra-thin asphalt wearing layer testing device and method, which comprises a frame body, a bidirectional rotating seat, a pressing mechanism, a contact switching mechanism, a plurality of asphalt placing bases, a rotating cleaning mechanism and a plurality of lifting detection mechanisms. The high-viscoelastic modified ultra-thin asphalt wearing layer testing device can automatically detect the rising process of the asphalt placing base through the lifting detection mechanism, can be applied to data detection and automatic recording in a narrow space, and can automatically separate the extrusion frame from the sliding plate during detection, so that the resistance applied to the sliding plate is avoided, the resistance applied to the asphalt placing base is avoided, the influence on the detection data is avoided, and after the detection is completed, the extrusion frame and the sliding plate are automatically in contact, the risk of falling of the sliding plate in the subsequent test process is avoided, and the sliding plate can be fixed at any height position.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of asphalt adhesion detection, and particularly relates to a high viscoelastic modified ultra-thin asphalt wearing layer testing device and method. BACKGROUND

[0002] Asphalt needs to be used in highway construction, and the adhesion of the asphalt wearing layer needs to be detected before the asphalt is used in construction. Chinese patent application No. CN202311075551.X, entitled "Asphalt Wearing Layer Adhesion Test Device", discloses that multiple detections are performed by multiple detection mechanisms, and multiple data are used to achieve better test results. In addition, during detection, the auxiliary part is used to rotate after each detection to achieve faster detection speed. However, the test device has the following shortcomings: first, during detection, the experimenter can only record each group of data by observing with the naked eye; second, when the asphalt is initially laid, the excess asphalt is difficult to remove, which makes it difficult to lay evenly and affects the test structure; third, the bottom of the second extrusion plate that has been detected cannot be cleaned during the test, and cleaning is performed after the test is completed; the asphalt at this position will dry and be difficult to clean, and the worker will find it difficult to use a scraper to clean it; and fourth, only one test can be performed at a time, and multiple groups cannot be tested simultaneously.

[0003] Therefore, a high viscoelastic modified ultra-thin asphalt wearing layer testing device needs to be designed, which can automatically record data in a small space, facilitate the laying of asphalt, automatically clean the asphalt that has been detected during the test, and switch between one-by-one detection and multiple group detection simultaneously. SUMMARY

[0004] In view of the above technical deficiencies, the present application aims to provide a high viscoelastic modified ultra-thin asphalt wearing layer testing device and method that can automatically record data in a small space, facilitate the laying of asphalt, automatically clean the asphalt that has been detected during the test, and switch between one-by-one detection and multiple group detection simultaneously.

[0005] In order to achieve the above object, the present application adopts the following technical scheme: the present application provides a high viscous modified ultra-thin asphalt wearing layer testing device, which comprises a frame body, a bidirectional rotating seat, a pressing mechanism, a contact switching mechanism, a plurality of asphalt placing bases, a rotating cleaning mechanism and a plurality of lifting detection mechanisms, the bidirectional rotating seat is fixedly installed on the frame body, the bidirectional rotating seat is provided with a right-rotating circular plate capable of rotating to the right and a left-rotating circular plate capable of rotating to the left, the left-rotating circular plate and the right-rotating circular plate are coaxially arranged, the left-rotating circular plate is located above the right-rotating circular plate, the contact switching mechanism is fixedly installed on the left-rotating circular plate, the pressing mechanism is fixedly installed on the frame body, the pressing mechanism is used for pushing the contact switching mechanism downward, the contact switching mechanism is used for switching the contact between the contact switching mechanism and the asphalt on one or more asphalt placing bases, the asphalt placing base is vertically slidably installed on the right-rotating circular plate, the rotating cleaning mechanism is vertically slidably installed on the right-rotating circular plate, the rotating cleaning mechanism is provided with a plurality of scrapers, a circular hole is formed in the middle of the scraper, the plurality of scrapers are sleeved on the outer edge of the asphalt placing base, when the asphalt is applied, the top of the scraper is flush with the top of the asphalt placing base, when the detection is performed, the top of the scraper is flush with the bottom of the contact switching mechanism, the lifting detection mechanism is fixedly installed on the rotating cleaning mechanism, and the lifting detection mechanism is used for detecting the lifting height of the asphalt placing base.

[0006] Preferably, the bidirectional rotating seat further comprises a driving motor, a middle shaft, a sleeve, an upper bevel gear, a lower bevel gear, a middle bevel gear and a rotating sleeve, the left-rotating circular plate and the lower bevel gear are fixedly connected with the middle shaft, the right-rotating circular plate and the upper bevel gear are fixedly connected with the sleeve, the bottom of the middle shaft is rotatably connected with the frame body, the rotating sleeve is sleeved on the outer edge of the sleeve, the sleeve is rotatably connected with the rotating sleeve, the rotating sleeve is fixedly installed on the frame body, the middle bevel gear is located in the middle of the middle shaft and the lower bevel gear and is engaged with both, the output end of the driving motor is fixedly connected with the middle bevel gear, and the driving motor is fixedly installed on the frame body.

[0007] Preferably, the rotating cleaning mechanism comprises a connecting ring, a vertical rod, an extrusion plate one, a locking nut one, a clamping block and a plurality of vertical plates, the top of the vertical plate is fixedly connected with the scraper, the inner edge of the plurality of vertical plates is in close contact with the outer edge of the right-rotating circular plate, the connecting ring is fixedly connected with the bottom of the plurality of vertical plates, the lifting detection mechanism is fixedly installed on the vertical plate, the vertical rod is vertically fixedly installed on the connecting ring, a strip-shaped sliding groove is formed in the middle of the vertical rod, the clamping block is inserted into the strip-shaped sliding groove, a screw hole is formed in the end of the clamping block, the end of the locking nut one passes through the extrusion plate one and is engagedly installed on the clamping block, a strip-shaped hole is formed in the middle of the extrusion plate one for the end of the locking nut one to pass through, one side of the extrusion plate one abuts against the vertical plate, when the top of the scraper is flush with the bottom of the contact switching mechanism, the bottom of the clamping block is in contact with the groove bottom of the strip-shaped sliding groove, and when the top of the scraper is flush with the top of the asphalt placing base, the top of the clamping block is in contact with the groove top of the strip-shaped sliding groove.

[0008] Preferably, the lifting detection mechanism comprises a sliding rail, a sliding plate and a magnetic strip, the sliding rail is fixedly installed on the vertical plate, the sliding plate is vertically slidably installed in the sliding rail, the magnetic strip is embedded in the vertical plate, one side of the magnetic strip is in contact with the sliding plate, the contact block is fixedly arranged on the asphalt placing base, the contact block penetrates through the vertical plate and is in contact with the bottom of the sliding plate, and a vertical avoiding slot is arranged on the vertical plate and used for allowing the contact block to penetrate through.

[0009] Preferably, the lifting detection mechanism further comprises an extrusion frame, a guide column, a protruding block and a spring, the guide column is fixedly installed on the vertical plate, the extrusion frame is slidably connected with the guide column, one side of the extrusion frame is in contact with the sliding plate, the spring is used for applying an elastic force to the extrusion frame towards the sliding plate, the push column is fixedly installed on the top of the extrusion frame, the protruding block is fixedly arranged on the left-handed circular plate and located directly above the push column, and when the push column is in contact with the protruding block, the extrusion frame is separated from the sliding plate.

[0010] Preferably, the contact switching mechanism comprises a plurality of extruders, a pushing plate and a plurality of limiting circular plates, each extruder comprises a jacking spring, a sliding column, a limiting circular plate and an extruding plate two, the sliding column is vertically slidably installed on the left-handed circular plate, the extruding plate two is fixedly installed on the bottom of the sliding column, the limiting circular plate is fixedly installed on the top of the sliding column, the jacking spring is used for applying an upward elastic force to the extruding plate two, the bottom of the stud is in contact with the top of one of the limiting circular plates, the top of the stud is rotatably connected with the output end of the pressing mechanism, the pushing plate is vertically slidably installed on the middle shaft, the stud is meshingly connected with the pushing plate, and the pushing plate is provided with a threaded hole used for meshingly connecting with the stud.

[0011] Preferably, each asphalt placing base comprises a circular plate, a guide sleeve, a screw rod, a counterweight ring and a locking nut two, the right-handed circular plate is provided with a plurality of guide holes, the guide sleeve is inserted into the guide hole, the circular plate is fixedly installed on the top of the guide sleeve, the contact block is fixedly installed on the outer edge of the circular plate, the screw rod is inserted into the middle of the guide sleeve and the top of the screw rod is fixedly connected with the circular plate, the counterweight ring is sleeved on the outer edge of the screw rod, and the locking nut two is meshingly installed on the screw rod and in contact with the bottom of the counterweight ring.

[0012] Preferably, the pressing mechanism is an electric push rod, and the output end of the electric push rod is rotatably connected with the top of the stud.

[0013] Preferably, a method for testing a high-viscous modified ultra-thin asphalt wearing layer device comprises the following steps:

[0014] Step one: rotate the bidirectional rotating seat to make the protruding block stagger with the push column, and then apply asphalt to the top of the circular plate;

[0015] Step two: push the rotating cleaning mechanism to rise, the top of the scraper is coplanar with the bottom of the extruding plate two, then rotate the bidirectional rotating seat to make the protruding block contact with the push column, and the extrusion frame is separated from the sliding plate;

[0016] Step three: according to the detection requirement, the stud can be switched to contact with a limiting circular plate, or the pushing plate can be switched to contact with multiple limiting circular plates.

[0017] Step four: the stud or the pushing plate pushes a limiting circular plate or multiple limiting circular plates to move downward in the same direction, so that the extrusion plate two extrudes the asphalt on the top of the circular plate, and then the downward pushing mechanism is retracted upward, the circular plate is pulled upward by the viscosity of the asphalt, and the separation height of the circular plate and the extrusion plate two represents the viscosity degree of the asphalt.

[0018] Step five: when the circular plate moves upward, the contact block pushes the sliding plate to move upward, and the rising height of the sliding plate can record the rising height of the circular plate.

[0019] Step six: the bidirectional rotating seat rotates, so that the top of the scraper shears the bottom of the extrusion plate two, and the asphalt on the bottom of the extrusion plate two is hung and falls, and the falling asphalt falls onto the top of the circular plate.

[0020] Step seven: while the bidirectional rotating seat rotates, the pushing column gradually separates from the protrusion, and when the separation is completed, the sliding plate is extruded, and then the next detection can be carried out, and the process of steps four to seven is repeated.

[0021] The high-viscosity modified ultra-thin asphalt wearing layer testing device has the advantages that the rising detection mechanism can automatically detect the rising process of the asphalt placement base, can be applied to data detection and automatic recording in a small space, the extrusion frame can be automatically separated from the sliding plate during detection, the resistance applied to the sliding plate is avoided, the resistance applied to the asphalt placement base is avoided, the influence on the detection data is avoided, the sliding plate can be fixed at any height position after detection, and the risk of falling of the sliding plate in the subsequent test process is avoided.

[0022] The bidirectional rotating seat can drive the left circular plate and the right circular plate to rotate, the scraper and the extrusion plate two are staggered, the asphalt on the extrusion plate two can be automatically cleaned, and when the asphalt is paved, if the asphalt is applied more, it can be directly scraped onto the scraper, so that the paving effect of the asphalt is better.

[0023] The contact switching mechanism can switch the downward pushing mechanism to push one or more limiting circular plates, so that the switching one-by-one detection or multiple detection mechanisms can be tested at the same time. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0025] Figure 1 It is a perspective view of the present application.

[0026] Figure 2 It is a front view of the present application.

[0027] Figure 3 It is a partial perspective view of the present application.

[0028] Figure 4 It is a sectional view of the present application.

[0029] Figure 5 It is a perspective view of the rotating cleaning mechanism.

[0030] Figure 6 It is a perspective view of the lifting detection mechanism.

[0031] Figure 7 It is a perspective view of the contact switching mechanism.

[0032] Figure 8 It is a schematic view of the installation state of the asphalt placing base.

[0033] Figure 9 It is a perspective view of the asphalt placing base.

[0034] Legend: 1, frame body; 2, bidirectional rotating seat; 2a, left rotating disc; 2b, right rotating disc; 2c, middle shaft; 2d, sleeve; 2e, upper bevel gear; 2f, lower bevel gear; 2h, middle bevel gear; 2j, rotating sleeve; 3, pressing mechanism; 4, contact switching mechanism; 4a, lifting spring; 4b, sliding column; 4c, limiting disc; 4d, extrusion plate two; 4e, stud; 4f, pushing plate; 5, asphalt placing base; 5a, contact block; 5b, disc; 5c, guide sleeve; 5d, screw rod; 5e, counterweight ring; 5f, locking nut two; 6, rotating cleaning mechanism; 6a, scraper; 6b, vertical plate; 6c, connecting ring; 6d, vertical rod; 6e, extrusion plate one; 6f, locking nut one; 6h, clamping block; 7, lifting detection mechanism; 7a, sliding rail; 7b, sliding plate; 7c, extrusion frame; 7c1, pushing column; 7d, guide column; 7e, protruding block; 7f, magnetic stripe; 7h, spring. DETAILED DESCRIPTION

[0035] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present application.

[0036] Embodiment: The present application provides a high-viscoelastic modified ultra-thin asphalt wearing layer testing device, such as Figures 1-4As shown, including frame body 1, two-way rotating seat 2, pressing mechanism 3, contact switching mechanism 4, a plurality of asphalt placement base 5, rotating cleaning mechanism 6 and a plurality of lifting detection mechanism 7, two-way rotating seat 2 is fixedly installed on frame body 1, two-way rotating seat 2 is provided with right-rotating circular plate 2b capable of rotating to the right and left-rotating circular plate 2a capable of rotating to the left, left-rotating circular plate 2a and right-rotating circular plate 2b are coaxially arranged, left-rotating circular plate 2a is located above right-rotating circular plate 2b, contact switching mechanism 4 is fixedly installed on left-rotating circular plate 2a, pressing mechanism 3 is fixedly installed on frame body 1, pressing mechanism 3 is used for pushing contact switching mechanism 4 downward, so that contact switching mechanism 4 contacts with asphalt on asphalt placement base 5, contact switching mechanism 4 is used for switching contact switching mechanism 4 to contact with asphalt on one asphalt placement base 5 or a plurality of asphalt placement bases 5, asphalt placement base 5 is vertically slidably installed on right-rotating circular plate 2b, when it is needed to detect the viscosity of high viscoelastic modified ultra-thin asphalt wearing layer, first, workers smear asphalt on the top of a plurality of asphalt placement bases 5, then adjust contact switching mechanism 4, and then switch pressing mechanism 3 to press downward, contact switching mechanism 4 simultaneously contacts with a plurality of asphalt placement bases 5 or contact switching mechanism 4 contacts with a plurality of asphalt placement bases 5 one by one. When detecting one by one, a plurality of two-way rotating seats 2 are needed to switch, right-rotating circular plate 2b is driven to rotate by two-way rotating seat 2, so that a plurality of asphalt placement bases 5 are switched, and the asphalt placement bases 5 contacted by contact switching mechanism 4 are changed. The working end of pressing mechanism 3 pushes contact switching mechanism 4 downward, so that contact switching mechanism 4 contacts with asphalt placement base 5, and then the working end of pressing mechanism 3 is retracted upward, so that contact switching mechanism 4 is pulled upward, and the viscosity of asphalt is used to drive asphalt placement base 5 to vertically slide upward, the gravity of asphalt placement base 5 is used to gradually separate contact switching mechanism 4 and asphalt placement base 5, and the height of asphalt placement base 5 during separation represents the viscosity of asphalt. Rotating cleaning mechanism 6 is vertically slidably installed on right-rotating circular plate 2b, a plurality of scrapers 6a are arranged on rotating cleaning mechanism 6, a circular hole is formed in the middle of scraper 6a, a plurality of scrapers 6a are sleeved on the outer edge of asphalt placement base 5, when asphalt is smeared, the top of scraper 6a is flush with the top of asphalt placement base 5, so that if more asphalt is smeared, it can be directly scraped to the top of scraper 6a, so that the paving effect of asphalt is better. After smearing is completed, scraper 6a can be lifted upward and cleaned by a scraper, which is convenient. When detecting, the top of scraper 6a is flush with the bottom of contact switching mechanism 4, because the rotating directions of left-rotating circular plate 2a and right-rotating circular plate 2b are different, that is, the rotating direction of scraper 6a is different from the rotating direction of contact switching mechanism 4, when two-way rotating seat 2 works, scraper 6a will shear the bottom of contact switching mechanism 4, and asphalt will fall on the upper surface of asphalt placement base 5 during shearing, and the bottom of contact switching mechanism 4 is cleaned at the same time, which is rapid and avoids subsequent cleaning difficulties.The elevation detection mechanism 7 is fixedly mounted on the rotary cleaning mechanism 6 , and the elevation detection mechanism 7 is used to detect the elevation height of the asphalt placement base 5 .

[0037] In order to achieve bidirectional rotation of the left-handed circular plate 2a and the right-handed circular plate 2b, and to keep the rotation angle consistent, Figure 4 As shown, the bidirectional rotating seat 2 also includes a driving motor, a central shaft 2c, a sleeve 2d, an upper bevel gear 2e, a lower bevel gear 2f, a central bevel gear 2h and a rotating sleeve 2j. The left-handed circular plate 2a and the lower bevel gear 2f are fixedly connected to the central shaft 2c, the right-handed circular plate 2b and the upper bevel gear 2e are fixedly connected to the sleeve 2d, the bottom of the central shaft 2c is rotatably connected to the frame 1, the rotating sleeve 2j is sleeved on the outer edge of the sleeve 2d, the sleeve 2d is rotatably connected to the rotating sleeve 2j, the rotating sleeve 2j is fixedly mounted on the frame 1, the central bevel gear 2h is located between the central shaft 2c and the lower bevel gear 2f and is meshed with the two, the output end of the driving motor is fixedly connected to the central bevel gear 2h, and the driving motor is fixedly mounted on the frame 1. By driving the middle bevel gear 2h to rotate with the driving motor, the upper bevel gear 2e and the lower bevel gear 2f can be rotated in both directions. That is, through the connection between the sleeve 2d and the central shaft 2c, the left-handed circular plate 2a and the right-handed circular plate 2b can be rotated in both directions, and the left-handed circular plate 2a and the right-handed circular plate 2b are ensured to be coaxial, and the rotation angles of the left-handed circular plate 2a and the right-handed circular plate 2b are the same.

[0038] In order to make the top of the scraper 6a flush with the asphalt placing base 5, and the top of the scraper 6a can also be flush with the bottom of the contact switching mechanism 4, for this purpose, as shown in FIG. Figure 3As shown, the rotating cleaning mechanism 6 comprises a connecting ring 6c, a vertical rod 6d, a pressing plate one 6e, a locking nut one 6f, a clamping block 6h and a plurality of vertical plates 6b, the top of the vertical plate 6b is fixedly connected with the scraper 6a, the inner edge of the plurality of vertical plates 6b is in close contact with the outer edge of the right-handed circular plate 2b, the connecting ring 6c is fixedly connected with the bottom of the plurality of vertical plates 6b, the lifting detection mechanism 7 is fixedly installed on the vertical plate 6b, the vertical rod 6d is vertically fixedly installed on the connecting ring 6c, a strip-shaped sliding groove is formed in the middle of the vertical rod 6d, the clamping block 6h is inserted into the strip-shaped sliding groove, a screw hole is formed in the end of the clamping block 6h, the end of the locking nut one 6f is engaged and installed on the clamping block 6h through the pressing plate one 6e, a strip-shaped hole is formed in the middle of the pressing plate one 6e for the end of the locking nut one 6f to pass through, one side of the pressing plate one 6e abuts against the vertical plate 6b, when the top of the scraper 6a is flush with the bottom of the contact switching mechanism 4, the bottom of the clamping block 6h is in contact with the groove bottom of the strip-shaped sliding groove, when the top of the scraper 6a is flush with the top of the asphalt placing base 5, the top of the clamping block 6h is in contact with the groove top of the strip-shaped sliding groove. By pushing the vertical plate 6b upward, the scraper 6a is driven to move upward, the clamping block 6h slides in the strip-shaped sliding groove of the vertical plate 6b, thereby positioning the lifting position of the scraper 6a, and when the scraper 6a rises or falls to the target position, the pressing plate one 6e is in abutment with the vertical plate 6b by rotating the locking nut one 6f, thereby fixing the vertical plate 6b.

[0039] It should be noted that the lifting detection mechanism 7 is installed on the rotating cleaning mechanism 6, and the position of the lifting detection mechanism 7 changes when the rotating cleaning mechanism 6 rises, which needs to be solved. The installation position is relatively close, the detection structure cannot be too large, and the asphalt placing base 5 needs to be lifted to automatically detect, therefore, as shown in Figure 3 and Figure 6As shown, the lifting detection mechanism 7 includes a sliding rail 7a, a sliding plate 7b and a magnetic strip 7f. The sliding rail 7a is fixedly installed on the vertical plate 6b, the sliding plate 7b is vertically slidably installed in the sliding rail 7a, and the magnetic strip 7f is embedded in the vertical plate 6b. One side of the magnetic strip 7f is in contact with the sliding plate 7b. The asphalt placement base 5 is fixedly provided with a contact block 5a, which penetrates the vertical plate 6b and is in contact with the bottom of the sliding plate 7b. The vertical plate 6b is provided with a vertical avoiding slot for the contact block 5a to penetrate. When the rotary cleaning mechanism 6 is lifted, the vertical plate 6b will drive the sliding rail 7a and the magnetic strip 7f to move upward. After the rotary cleaning mechanism 6 is lifted, the sliding plate 7b is pushed downward to contact the top of the contact block 5a. Then the detection process is started. When the asphalt placement base 5 is pulled upward by the adhesive effect of the asphalt, the contact block 5a will move upward, so that the contact block 5a pushes the sliding plate 7b to slide upward along the sliding rail 7a. After the asphalt is separated by adhesion, the contact block 5a will slide downward under the gravity of the asphalt placement base 5. At this time, the height position of the sliding plate 7b represents the degree of adhesion of the asphalt. That is, the lifting detection mechanism 7 can be installed in a small space, and the lifting process of the asphalt placement base 5 is automatically detected. After the rotary cleaning mechanism 6 is lifted, the position of the lifting detection mechanism 7 will change, so that the lifting detection mechanism 7 can start detection.

[0040] Because the asphalt placement base 5 will collide with the right-handed circular plate 2b when it falls downward, the sliding plate 7b may be shaken downward due to multiple collisions. When the asphalt placement base 5 directly below the sliding plate 7b falls downward, there is no need to worry because if the sliding plate 7b slightly descends, the detection personnel can immediately push it upward to reset. If the rotation is not convenient for the inspector to watch, it cannot be corrected and adjusted, which will affect the final detection effect. Therefore, as shown in FIG. 10, the magnetic strip 7f is provided with a plurality of magnetic strips 7f1, and the sliding plate 7b is provided with a plurality of magnetic strips 7f2. The magnetic strips 7f1 and the magnetic strips 7f2 are in contact with each other. When the sliding plate 7b is shaken downward, the magnetic strips 7f1 and the magnetic strips 7f2 will be in contact with each other, so that the sliding plate 7b will not be shaken downward. Figure 1 and Figure 6As shown, the lifting detection mechanism 7 further comprises a pressing frame 7c, a guide column 7d, a protruding block 7e and a spring 7h. The guide column 7d is fixedly installed on the vertical plate 6b, the pressing frame 7c is in sliding connection with the guide column 7d, one side of the pressing frame 7c is in abutment with the sliding plate 7b, and the spring 7h is used to apply an elastic force to the pressing frame 7c towards the sliding plate 7b. The end of the guide column 7d is provided with a baffle, the spring 7h is sleeved on the guide column 7d, and the two ends of the spring 7h are in abutment with the pressing frame 7c and the baffle respectively. The push column 7c1 is fixedly installed on the top of the pressing frame 7c, the protruding block 7e is fixedly arranged on the left-rotating circular plate 2a, and the protruding block 7e is located directly above the push column 7c1. When the push column 7c1 is in contact with the protruding block 7e, the pressing frame 7c is separated from the sliding plate 7b. Before the upward pushing of the rotating cleaning mechanism 6, the push column 7c1 is first staggered with the protruding block 7e by controlling the bidirectional rotating seat 2, then the rotating cleaning mechanism 6 is pushed upward, and finally the push column 7c1 is in abutment with the protruding block 7e by controlling the bidirectional rotating seat 2, so that the push column 7c1 pushes the spring 7h to be compressed, and at the same time the pressing frame 7c is separated from the sliding plate 7b, thereby avoiding the application of resistance to the sliding plate 7b, avoiding the increase of resistance of the sliding plate 7b, and avoiding the application of resistance to the asphalt placing base 5, that is, avoiding the influence on the detection data.

[0041] In order to be able to switch the contact switching mechanism 4 to be in contact with the asphalt on one asphalt placing base 5 or multiple asphalt placing bases 5, for this purpose, as shown in Figure 7 The contact switching mechanism 4 comprises a limiting circular plate 4c, a pushing plate 4f and multiple squeezers. Each squeezer comprises a jacking spring 4a, a sliding column 4b, a limiting circular plate 4c and a second squeezing plate 4d. The sliding column 4b is vertically slidably installed on the left-rotating circular plate 2a, the second squeezing plate 4d is fixedly installed on the bottom of the sliding column 4b, the limiting circular plate 4c is fixedly installed on the top of the sliding column 4b, the jacking spring 4a is used to apply an upward elastic force to the second squeezing plate 4d, the jacking spring 4a is sleeved on the sliding column 4b, the two ends of the jacking spring 4a are in abutment with the left-rotating circular plate 2a and the limiting circular plate 4c respectively, the bottom of the stud 4e is in contact with the top of one of the limiting circular plates 4c, the top of the stud 4e is in rotary connection with the output end of the downward pressing mechanism 3, that is, the stud 4e can rotate, and the pushing plate 4f is vertically slidably installed on the middle shaft 2c. The stud 4e is in meshing connection with the pushing plate 4f, and the pushing plate 4f is provided with a threaded hole for meshing connection with the stud 4e. When it is necessary to switch the contact switching mechanism 4 to be in contact with one asphalt placing base 5, the bottom of the stud 4e penetrates out of the bottom of the pushing plate 4f, as shown in Figure 7 When the downward pressing mechanism 3 is pushed downward, the stud 4e is pushed downward, so that the sliding column 4b is pushed downward. When the downward pressing mechanism 3 is pushed downward to the final position, the bottom of the pushing plate 4f will be in contact with the top of the asphalt placing base 5, and at this position, the pushing plate 4f will not be in contact with other limiting circular plates 4c, that is, the contact switching mechanism 4 is in contact with one asphalt placing base 5.

[0042] When it is necessary to switch the contact switching mechanism 4 to contact the multiple asphalt placement bases 5 at the same time, the push plate 4f is lowered by rotating the stud 4e. When the top of the push plate 4f contacts the top of the limiting circular plate 4c, the downward pushing mechanism 3 pushes downward, which moves the stud 4e downward, so that the stud 4e drives the push plate 4f to move downward, that is, the multiple extrusion plates two 4d are pushed downward by the push plate 4f, that is, the multiple extrusion plates two 4d contact the top of the multiple asphalt placement bases 5 at the same time, that is, the contact switching mechanism 4 contacts the multiple asphalt placement bases 5 at the same time.

[0043] In the above detection process, when the slide column 4b pushes downward, the jacking spring 4a is compressed, and in the process of the stud 4e rising, the elastic force of the jacking spring 4a pulls the extrusion plate two 4d upward, that is, the asphalt drives the asphalt placement base 5 to move upward, that is, the viscosity of the asphalt is detected.

[0044] In order to enable the asphalt placement base 5 to vertically slide on the right-handed circular plate 2b, as shown in Figure 8 and Figure 9 Each asphalt placement base 5 comprises a circular plate 5b, a guide sleeve 5c, a screw rod 5d, a counterweight ring 5e, and a locking nut two 5f. The right-handed circular plate 2b is provided with multiple guide holes, the guide sleeve 5c is inserted into the guide holes, the circular plate 5b is fixedly installed at the top of the guide sleeve 5c, the contact block 5a is fixedly installed at the outer edge of the circular plate 5b, the screw rod 5d is inserted into the middle part of the guide sleeve 5c, the top of the screw rod 5d is fixedly connected with the circular plate 5b, the counterweight ring 5e is sleeved on the outer edge of the screw rod 5d, the locking nut two 5f is engagedly installed on the screw rod 5d, and the top of the locking nut two 5f abuts against the bottom of the counterweight ring 5e. The top of the circular plate 5b is used for smearing asphalt. When the circular plate 5b is pulled upward, the guide sleeve 5c slides along the guide holes on the right-handed circular plate 2b. Due to the different viscosities of various asphalts and the limited space between the left-handed circular plate 2a and the right-handed circular plate 2b, in order to detect more kinds of asphalt, the number of the counterweight rings 5e needs to be increased. When the number of the counterweight rings 5e is increased, the separation height is lower, so that more kinds of detection can be carried out in the limited space.

[0045] The downward pushing mechanism 3 is an electric push rod, the output end of the electric push rod is rotationally connected with the top of the stud 4e. The downward pushing mechanism 3 is fixedly installed at the top of the frame body 1.

[0046] A method of a high-viscous and elastic modified ultra-thin asphalt wearing layer testing device, comprising the following steps:

[0047] Step one: rotate the bidirectional rotating seat 2, so that the convex block 7e and the push column 7c1 are staggered, and then smear asphalt on the top of the circular plate 5b;

[0048] Step two: push the rotating cleaning mechanism 6 up, the top of the scraper 6a is coplanar with the bottom of the extrusion plate two 4d, then rotate through the bidirectional rotating seat 2, so that the protruding block 7e is in contact with the push column 7c1, and the extrusion frame 7c is separated from the sliding plate 7b;

[0049] Step three: according to the detection requirements, the stud 4e can be switched to contact a limiting circular plate 4c, or the push plate 4f can be switched to contact multiple limiting circular plates 4c.

[0050] Step four: push down through the pressing mechanism 3, so that the stud 4e or the push plate 4f pushes one limiting circular plate 4c or multiple limiting circular plates 4c to move downward in the same direction, so that the extrusion plate two 4d is in contact with the top of the circular plate 5b, and then the output end of the pressing mechanism 3 is retracted upward, and the circular plate 5b is pulled upward through the viscosity of the asphalt, and the separation height of the circular plate 5b and the extrusion plate two 4d represents the viscosity degree of the asphalt;

[0051] Step five: when the circular plate 5b moves upward, the sliding plate 7b is pushed upward through the contact block 5a, and the rising height of the sliding plate 7b can record the rising height of the circular plate 5b;

[0052] Step six: rotate the bidirectional rotating seat 2, so that the top of the scraper 6a is sheared with the bottom of the extrusion plate two 4d, and the asphalt at the bottom of the extrusion plate two 4d will be hung down, and the falling asphalt will fall onto the top of the circular plate 5b;

[0053] Step seven: while the bidirectional rotating seat 2 is rotating, the push column 7c1 gradually separates from the protruding block 7e, and when the separation is completed, the 7c will extrude the sliding plate 7b, and then the next detection can be carried out, and the process of steps four to seven is repeated.

[0054] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A high-viscoelastic modified ultra-thin asphalt wearing layer testing device, characterized in that: The invention comprises a frame (1), a bidirectional rotating seat (2), a pressing mechanism (3), a contact switching mechanism (4), a plurality of asphalt placing bases (5), a rotating cleaning mechanism (6) and a plurality of lifting detection mechanisms (7), wherein the bidirectional rotating seat (2) is fixedly mounted on the frame (1), a right-handed circular plate (2b) capable of rotating to the right and a left-handed circular plate (2a) capable of rotating to the left are provided on the bidirectional rotating seat (2), the left-handed circular plate (2a) and the right-handed circular plate (2b) are coaxially arranged, the left-handed circular plate (2a) is located above the right-handed circular plate (2b), the contact switching mechanism (4) is fixedly mounted on the left-handed circular plate (2a), the pressing mechanism (3) is fixedly mounted on the frame (1), the pressing mechanism (3) is used to push the contact switching mechanism (4) downward, and the contact switching mechanism (4) is used to switch the contact switching mechanism (4) with An asphalt placing base (5) or multiple asphalt placing bases (5) are in contact with asphalt, the asphalt placing base (5) can be mounted on the right-hand circular plate (2b) in a vertically slidable manner, the rotary cleaning mechanism (6) can be mounted on the right-hand circular plate (2b) in a vertically slidable manner, a plurality of scrapers (6a) are provided on the rotary cleaning mechanism (6), a circular hole is opened in the middle of the scrapers (6a), and the plurality of scrapers (6a) are sleeved on the outer edge of the asphalt placing base (5), when applying asphalt, the top of the scraper (6a) is flush with the top of the asphalt placing base (5), and when detecting, the top of the scraper (6a) is flush with the bottom of the contact switching mechanism (4), and the lifting detection mechanism (7) is fixedly mounted on the rotary cleaning mechanism (6), and the lifting detection mechanism (7) is used to detect the rising height of the asphalt placing base (5); The bidirectional rotating seat (2) further includes a driving motor, a central shaft (2c), a sleeve (2d), an upper bevel gear (2e), a lower bevel gear (2f), a central bevel gear (2h) and a rotating sleeve (2j); the left-handed circular plate (2a) and the lower bevel gear (2f) are both fixedly connected to the central shaft (2c); the right-handed circular plate (2b) and the upper bevel gear (2e) are both fixedly connected to the sleeve (2d); the bottom of the central shaft (2c) is rotationally connected to the frame (1); the rotating sleeve (2j) is sleeved on the outer edge of the sleeve (2d); the sleeve (2d) is rotationally connected to the rotating sleeve (2j); the rotating sleeve (2j) is fixedly mounted on the frame (1); the central bevel gear (2h) is located between the central shaft (2c) and the lower bevel gear (2f) and meshes with the two; the output end of the driving motor is fixedly connected to the central bevel gear (2h), and the driving motor is fixedly mounted on the frame (1); The rotary cleaning mechanism (6) includes a connecting ring (6c), a vertical rod (6d), an extrusion plate (6e), a locking nut (6f), a clamping block (6h) and a plurality of vertical plates (6b). The top of the vertical plate (6b) is fixedly connected to the scraper (6a). The inner edges of the plurality of vertical plates (6b) are fitted with the outer edges of the right-handed circular plate (2b). The connecting ring (6c) is fixedly connected to the bottoms of the plurality of vertical plates (6b). The lifting detection mechanism (7) is fixedly installed on the vertical plate (6b). The vertical rod (6d) is vertically fixedly installed on the connecting ring (6c). A strip-shaped sliding groove is provided in the middle of the vertical rod (6d). The clamping block (6h) is inserted in the vertical plate (6b). In the strip chute, a screw hole is provided at the end of the block (6h), and the end of the locking nut (6f) passes through the extrusion plate (6e) and is engaged and installed on the block (6h). A strip hole is provided in the middle of the extrusion plate (6e) for the end of the locking nut (6f) to pass through. One side of the extrusion plate (6e) contacts the vertical plate (6b). When the top of the scraper (6a) is flush with the bottom of the contact switching mechanism (4), the bottom of the block (6h) contacts the bottom of the strip chute. When the top of the scraper (6a) is flush with the top of the asphalt placing base (5), the top of the block (6h) contacts the top of the strip chute. The lifting detection mechanism (7) includes a slide rail (7a), a slide plate (7b) and a magnetic strip (7f), wherein the slide rail (7a) is fixedly mounted on the vertical plate (6b), the slide plate (7b) is vertically slidably mounted in the slide rail (7a), the magnetic strip (7f) is embedded in the vertical plate (6b), one side of the magnetic strip (7f) contacts the slide plate (7b), a contact block (5a) is fixedly mounted on the asphalt placement base (5), the contact block (5a) passes through the vertical plate (6b) and contacts the bottom of the slide plate (7b), and a vertical avoidance groove for the contact block (5a) to pass through is provided on the vertical plate (6b). The lifting detection mechanism (7) also includes an extrusion frame (7c), a guide frame (7d), and a guide frame (7e). The guide post (7d) is fixedly mounted on the vertical plate (6b), the extrusion frame (7c) is slidably connected to the guide post (7d), one side of the extrusion frame (7c) contacts the slide plate (7b), the spring (7h) is used to apply an elastic force to the extrusion frame (7c) toward the slide plate (7b), the push post (7c1) is fixedly mounted on the top of the extrusion frame (7c), the protrusion (7e) is fixedly provided on the left-handed circular plate (2a), the protrusion (7e) is located directly above the push post (7c1), and when the push post (7c1) contacts the protrusion (7e), the extrusion frame (7c) is separated from the slide plate (7b).

2. A high-viscoelastic modified ultra-thin asphalt wearing layer testing device according to claim 1, characterized in that: The contact switching mechanism (4) includes a limiting circular plate (4c), a pushing plate (4f) and a plurality of squeezers, each squeezer including a lifting spring (4a), a sliding column (4b), a limiting circular plate (4c) and a second squeezing plate (4d), the sliding column (4b) being vertically slidably mounted on the left-handed circular plate (2a), the second squeezing plate (4d) being fixedly mounted on the bottom of the sliding column (4b), the limiting circular plate (4c) being fixedly mounted on the top of the sliding column (4b), and the lifting spring (4a). The spring (4a) is used to apply an upward elastic force to the second extrusion plate (4d), the bottom of the stud (4e) contacts the top of one of the limiting circular plates (4c), the top of the stud (4e) is rotatably connected to the output end of the pressing mechanism (3), the pushing plate (4f) can be installed on the central axis (2c) in a vertically sliding manner, the stud (4e) is engaged with the pushing plate (4f), and a screw hole for engaging with the stud (4e) is provided on the pushing plate (4f).

3. A high-viscoelastic modified ultra-thin asphalt wearing layer testing device as claimed in claim 2, characterized in that: Each asphalt placing base (5) includes a circular plate (5b), a guide sleeve (5c), a screw (5d), a counterweight ring (5e) and a second locking nut (5f). A plurality of guide holes are opened on the right-handed circular plate (2b), the guide sleeve (5c) is inserted into the guide hole, the circular plate (5b) is fixedly installed on the top of the guide sleeve (5c), the contact block (5a) is fixedly installed on the outer edge of the circular plate (5b), the screw (5d) is inserted in the middle of the guide sleeve (5c), and the top of the screw (5d) is fixedly connected to the circular plate (5b), the counterweight ring (5e) is sleeved on the outer edge of the screw (5d), and the second locking nut (5f) is meshed and installed on the screw (5d), and the top of the second locking nut (5f) is in conflict with the bottom of the counterweight ring (5e).

4. A high-viscoelastic modified ultra-thin asphalt wearing layer testing device as claimed in claim 3, characterized in that: The pressing mechanism (3) is an electric push rod, and the output end of the electric push rod is rotatably connected to the top of the stud (4e).

5. The method of testing the high-viscoelastic modified ultra-thin asphalt wearing layer according to claim 4, characterized in that: The following steps are involved: Step 1: Rotate the bidirectional rotating seat (2) so that the protrusion (7e) and the push column (7c1) are interlaced, and then apply asphalt to the top of the circular plate (5b); Step 2: Push the rotary cleaning mechanism (6) upward, so that the top of the scraper (6a) is coplanar with the bottom of the second extrusion plate (4d), and then the bidirectional rotating seat (2) is rotated so that the protrusion (7e) contacts the push column (7c1), and the extrusion frame (7c) is separated from the slide plate (7b); Step 3: According to the detection requirements, the stud (4e) can be switched to contact with a limiting circular plate (4c), or the push plate (4f) can be pushed to contact with multiple limiting circular plates (4c) at the same time; Step 4: Push downward through the pressing mechanism (3), so that the stud (4e) or the pushing plate (4f) pushes a limiting circular plate (4c) or multiple limiting circular plates (4c) to move downward in the same direction, so that the extrusion plate 2 (4d) is in contact with the asphalt on the top of the circular plate (5b), and then the output end of the pressing mechanism (3) is retracted upward. Due to the viscosity of the asphalt, the circular plate (5b) is pulled upward. The separation height between the circular plate (5b) and the extrusion plate 2 (4d) represents the viscosity of the asphalt; Step 5: When the circular plate (5b) moves upward, the contact block (5a) pushes the slide plate (7b) to move upward at the same time, and the rising height of the circular plate (5b) can be recorded by the rising height of the slide plate (7b); Step 6: The bidirectional rotating seat (2) rotates so that the top of the scraper (6a) and the bottom of the second extrusion plate (4d) are sheared, and the asphalt at the bottom of the second extrusion plate (4d) is hung and dropped, and the falling asphalt falls to the top of the circular plate (5b); Step 7: While the bidirectional rotating seat (2) rotates, the push column (7c1) gradually separates from the protrusion (7e). When the separation is completed, the extrusion frame (7c) will squeeze the slide plate (7b), and then the next test can be carried out, and the process of steps 4 to 7 is repeated.

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