CN116223306B - Rubber asphalt viscosity testing device - Google Patents
Rubber asphalt viscosity testing device Download PDFInfo
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- CN116223306B CN116223306B CN202310287435.8A CN202310287435A CN116223306B CN 116223306 B CN116223306 B CN 116223306B CN 202310287435 A CN202310287435 A CN 202310287435A CN 116223306 B CN116223306 B CN 116223306B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/14—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application relates to the technical field of viscosity test, in particular to a rubber asphalt viscosity test device, which comprises a bottom plate; the bottom plate is of an isosceles triangle structure, a heating mechanism for heating the rubber asphalt is arranged on the right side of the bottom plate, a testing machine main body is arranged on the left side of the heating mechanism, and a testing mechanism for stirring and detecting the rubber asphalt is arranged on the testing machine main body; the application solves the problems that the existing asphalt heating flame or electric heater mainly existing in the use process of the existing rubber asphalt viscosity testing device directly heats the asphalt, which is easy to cause uneven heating of the asphalt and affects the accuracy of asphalt viscosity testing; and heating, stirring and testing of asphalt are performed by using different equipment, so that the operation process of the asphalt needs to be carried out for multiple times, and the asphalt is moved, thereby causing the tedious detection process of the viscosity of the asphalt; the application ensures the uniform heating of the rubber asphalt and simplifies the asphalt stirring and testing process.
Description
Technical Field
The application relates to the technical field of viscosity test, in particular to a rubber asphalt viscosity test device.
Background
In order to avoid the conditions of segregation of asphalt and mixture, rolling non-compaction and the like when the asphalt is used, the viscosity of the asphalt is required to be detected so as to adjust the viscosity of the asphalt and ensure the use quality of the asphalt; the viscosity test method of the asphalt comprises a capillary method, a rotary method, an outflow cup method and the like;
because the heated temperature can influence the viscosity of asphalt, the asphalt is heated to a specific temperature to be melted before detection, so that a test value is ensured; if the rotation method is mainly used, the Brinell viscometer is mainly used for measurement, and the use method is that the stirring is continuously carried out in the process of heating asphalt by using a stirrer, so that the heating is uniform, the rotor is obliquely inserted into the asphalt after the heating is finished, then the rotor is placed at the edge position of an asphalt tank in a vertical state, the heating and stirring of the asphalt are continued, the rotor is preheated, then the stirring is stopped, the rotor is connected with the Brinell viscometer, and the rotor is moved to the middle part of the asphalt to drive the rotation of the rotor by using the Brinell viscometer, so that the viscosity of the asphalt is tested.
However, the current rubber asphalt viscosity testing device has the following problems in the use process: 1. the existing asphalt heating mode is directly heated through flame or an electric heater, asphalt is heated unevenly easily in the mode, bumping occurs, the temperature of asphalt at the bottom is higher, the asphalt is not timely and easy to burn, and finally the accuracy of asphalt viscosity test is affected.
2. The heating, stirring and testing of asphalt are carried out by using different equipment, so that the operation process of the asphalt needs to be carried out for multiple times, and the asphalt is moved, thereby leading to complicated asphalt viscosity detection process.
Disclosure of Invention
In view of the above problems, the embodiment of the application provides a rubber asphalt viscosity testing device, which aims to solve the technical problems of uneven heating of rubber asphalt, complicated asphalt stirring and testing of separate equipment in the related art and the like.
In order to achieve the above object, the embodiment of the present application provides the following technical solutions:
the embodiment of the application provides a rubber asphalt viscosity testing device, which comprises a bottom plate; the bottom plate be isosceles triangle structure, the bottom plate right side is provided with the heating mechanism that is used for heating rubber asphalt, the left side of heating mechanism is provided with the test machine main part, is provided with the testing mechanism that is used for stirring and detecting rubber asphalt on the test machine main part.
As the preferred scheme, heating mechanism include the heater, the right side up end of bottom plate is provided with the heater, the up end of heater is provided with the section of thick bamboo post, the circumference outer wall of section of thick bamboo post is provided with the heat preservation, the inside of section of thick bamboo post is annotated there is heat conduction liquid, the inner chamber diapire of section of thick bamboo post is provided with the heat-resisting plate, evenly offered the mesh on the heat-resisting plate, the up end of heat-resisting plate has placed the heat-conducting cylinder that is used for holding rubber asphalt, the upper portion of section of thick bamboo post is provided with the spacing unit that is used for restricting the heat-conducting cylinder and removes, the right side of section of thick bamboo post is provided with the circulation piece that is used for driving heat conduction liquid flow.
As the preferred scheme, spacing unit include the arc, the up end of section of thick bamboo post evenly slidable mounting along its circumference direction has a plurality of arcs, and a plurality of arcs constitute a ring, and one side that section of thick bamboo post axle center was kept away from to a plurality of arcs is provided with an annular spring jointly, the air vent is seted up to one side that section of thick bamboo post axle center was kept away from to two adjacent arcs, the outer circular arc department on arc upper portion is the inclined plane, section of thick bamboo post upper portion slidable mounting has a pressure section of thick bamboo, the inner chamber bottom of pressure section of thick bamboo is provided with the pressure ring piece that supports that contradicts with the inclined plane of arc, is provided with the locking piece that is used for fixed pressure section of thick bamboo on the section of thick bamboo post.
As the preferred scheme, the circulation piece include the base, the right side circumference externally mounted of section of thick bamboo post has the base, misplaces respectively around the inside of base and has offered a runner, has offered the through-hole that is linked together with two runners on the section of thick bamboo post respectively, the circular slot that is linked together with two runners is offered at the middle part of base, the inside axostylus axostyle that rotates of circular slot is installed, the right side of axostylus axostyle extends to the outside of base, installs the turbine on the axostylus axostyle of circular slot inside, stepper motor is installed through the motor cabinet on the right side of base, stepper motor's output shaft passes through the shaft coupling and is connected with the axostylus axostyle.
As the preferred scheme, the testing mechanism include the dead lever, the output shaft position coaxial arrangement of test machine main part has the dead lever, and dead lever and test machine main part's output shaft normal running fit, rectangular channel has been seted up to the terminal surface under the dead lever, rectangular channel is interior from left to right slidable mounting in proper order has puddler and double-screw bolt, square channel has been seted up to the terminal surface under test machine main part's output shaft, puddler and double-screw bolt's up end all be with square channel complex rectangular structure, the regulating plate is installed in the terminal surface rotation under the dead lever, be provided with the adjusting unit who is used for adjusting puddler and double-screw bolt position on the regulating plate.
As the preferred scheme, the locking piece include an otic placode, press section of thick bamboo right side to be provided with an otic placode, be provided with No. two otic placodes on the section of thick bamboo post under the otic placode, terminal surface installation spacing post under the otic placode, spacing post lower extreme downwardly extending just with No. two otic placodes sliding fit, two ring grooves have been seted up along its axial direction to spacing post, no. two otic placodes keep away from one side of section of thick bamboo post and are provided with the barrier plate, the barrier plate divide into arc section and horizontal segment, the horizontal segment of barrier plate is connected with No. two otic placodes rotation through a torsional spring cooperation, the arc section and the ring groove cooperation of barrier plate are used for restricting the removal of spacing post.
As the preferred scheme, the adjusting unit include the guide way, the guide way has been seted up on the regulating plate, and the guide way is tangent by three sections circular arc sections and is constituteed, the spacing groove has been seted up along its orbit to the guide way inner wall, puddler and double-screw bolt all pass through bearing and spacing groove sliding fit, the circumference outer wall bilateral symmetry of dead lever respectively is provided with a fixed plate, puddler outer wall and double-screw bolt outer wall below the regulating plate all rotate and install the sliding ring, be provided with the extension spring between fixed plate and the corresponding sliding ring, the front side of regulating plate is provided with the locating part.
As the preferred scheme, the locating part include the limiting plate, the limiting plate is installed through No. two torsional spring cooperation rotations to the front side of regulating plate, and the limiting plate is L type structure, two with limiting plate complex constant head tank have been seted up along its circumference direction to the circumference outer wall of dead lever.
Preferably, the inner arc at the upper part of the arc-shaped plate is an inclined plane.
The above technical solutions in the embodiments of the present application have at least one of the following technical effects:
1. the heating mechanism provided by the application heats asphalt by taking the heat-conducting liquid as a heat transfer medium, thereby ensuring uniform heating of the asphalt, avoiding the situations of bumping and scorching of the asphalt during direct heating and influencing the detection precision of asphalt viscosity.
2. The adjusting unit provided by the application adjusts the positions of the stirring rod and the stud for mounting the rotor by manually rotating the adjusting plate, so that the stirring rod and the stud for mounting the rotor are subjected to stirring and viscosity testing by the same equipment, the operation is less, the testing is convenient, the heated asphalt is ensured to be tested in time, the uniform cleaning can be performed after the testing, and the steps are simplified.
3. The fixing unit controls the pressing cylinder to move up and down through the locking piece, so that the heat conduction cylinder is conveniently limited, the heat conduction cylinder is prevented from shaking in the testing process, the testing result is prevented from being influenced, the service life of the rotor is prevented from being influenced by damage, meanwhile, the flexible fit of the heat conduction cylinder is kept through the annular spring, and part of heat conduction liquid on the surface of the heat conduction cylinder can be scraped in the process of taking out the heat conduction cylinder, so that the follow-up cleaning work is facilitated.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of the present application.
Fig. 2 is a cross-sectional view of the heating mechanism and the testing mechanism of fig. 1.
FIG. 3 is an exploded view (bottom plate cut away) of a portion of the structure of the heating mechanism of the present application.
Fig. 4 is a schematic view of the heating mechanism (base of the cutting part) according to the present application.
Fig. 5 is an enlarged view of the structure at a in fig. 2.
Fig. 6 is a partial cross-sectional view of a endless member of the present application.
Fig. 7 is a schematic structural view of a testing mechanism (a main body of a testing machine in a cut-out part) of the present application.
Fig. 8 is an exploded view of a portion of the structure of fig. 7.
Fig. 9 is an enlarged view of the structure at B in fig. 2.
Fig. 10 is a bottom view of fig. 7.
Fig. 11 is an enlarged view of the structure at C in fig. 3.
Reference numerals
1. A bottom plate; 2. a tester main body.
3. A heating mechanism; 30. a heater; 31. a cylinder column; 32. a heat-blocking plate; 33. a heat conduction tube.
5. A limit unit; 50. an arc-shaped plate; 51. an annular spring; 52. a vent hole; 53. pressing a cylinder; 54. pressing the ring block; 55. a locking member; 550. a first ear plate; 551. a second ear plate; 552. a limit column; 553. an annular groove; 554. and a blocking plate.
6. A circulation member; 61. a base; 62. a flow passage; 63. a circular groove; 64. a shaft lever; 65. a turbine; 66. a stepper motor.
4. A testing mechanism; 40. a fixed rod; 41. rectangular grooves; 42. a stirring rod; 43. a stud; 44. a square groove; 45. and an adjusting plate.
7. An adjusting unit; 70. a guide groove; 71. a limit groove; 72. a fixing plate; 73. a slip ring; 74. a tension spring; 75. a limiting piece; 750. a limiting plate; 751. and a positioning groove.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
As shown in fig. 1, a rubber asphalt viscosity testing device comprises a bottom plate 1; the base plate 1 is isosceles triangle structure, the right side of the base plate 1 is provided with a heating mechanism 3 for heating rubber asphalt, the left side of the heating mechanism 3 is provided with a testing machine main body 2, and the testing machine main body 2 is provided with a testing mechanism 4 for stirring and detecting the rubber asphalt.
As shown in fig. 1, 2 and 3, the heating mechanism 3 comprises a heater 30, the right side up end of the bottom plate 1 is provided with the heater 30, the up end of the heater 30 is provided with a cylinder 31, the circumference outer wall of the cylinder 31 is provided with a heat insulation layer, the inside of the cylinder 31 is filled with heat conducting liquid, the bottom wall of the inner cavity of the cylinder 31 is provided with a heat-insulating plate 32, meshes are uniformly arranged on the heat-insulating plate 32, the up end of the heat-insulating plate 32 is provided with a heat-conducting cylinder 33 for containing rubber asphalt, the upper part of the cylinder 31 is provided with a limiting unit 5 for limiting the movement of the heat-conducting cylinder 33, and the right side of the cylinder 31 is provided with a circulating piece 6 for driving the heat conducting liquid to flow.
During specific operation, a proper amount of asphalt is manually taken out and placed into the heat conduction barrel 33, then the heat conduction barrel 33 with the asphalt is placed onto the heat-resisting plate 32, the heat conduction barrel 33 is fixed through the limiting unit 5 to ensure stability during subsequent stirring, then the heater 30 is electrified to heat the heat conduction liquid (such as silicone oil) in the barrel column 31, in the heating process, the circulating piece 6 enables the heat conduction liquid to flow so as to uniformly heat the heat conduction liquid, the heat conduction liquid is used as a heat conduction medium to ensure that the asphalt in the heat conduction barrel 33 is uniformly heated, meanwhile, the testing mechanism 4 stirs the asphalt, and after the asphalt reaches a specific temperature, the testing mechanism 4 tests the viscosity of the asphalt in the state.
As shown in fig. 2, fig. 3, fig. 4, fig. 5 and fig. 11, the limiting unit 5 comprises arc plates 50, a plurality of arc plates 50 are uniformly and slidably mounted on the upper end surface of the cylinder 31 along the circumferential direction of the upper end surface, the arc plates 50 form an annular member, one side, far away from the axis of the cylinder 31, of each arc plate 50 is jointly provided with an annular spring 51, one side, far away from the axis of the cylinder 31, of each arc plate 50 is provided with a vent hole 52, an outer arc part on the upper part of each arc plate 50 is an inclined surface, a pressure cylinder 53 is slidably mounted on the upper part of the cylinder 31, a pressure ring block 54 which is abutted against the inclined surface of each arc plate 50 is arranged at the bottom of the inner cavity of the pressure cylinder 53, and a locking member 55 for fixing the pressure cylinder 53 is arranged on the cylinder 31.
During specific operation, the pressure cylinder 53 is opened manually through the locking piece 55, then the pressure cylinder 53 is moved upwards manually to enable the pressing ring block 54 to be far away from the arc plate 50, then the pressure cylinder 53 is fixedly kept to be far away from the arc plate 50 through the locking piece 55, then the heat conduction cylinder 33 filled with asphalt is placed on the heat-resistant plate 32 through the arc plate 50 manually, in the process of placing the heat conduction cylinder 33, the arc plate 50 can be subjected to position adjustment along with the movement of the heat conduction cylinder 33, the size of a closed opening formed by the plurality of arc plates 50 is changed, so that the heat conduction cylinder 33 is placed on the heat-resistant plate 32, then the locking piece 55 is used for unlocking the pressure cylinder 53, then the pressure cylinder 53 is moved downwards manually to enable the pressing ring block 54 to be in contact with the inclined plane of the arc plate 50 to limit the movement of the arc plate 50, and then the pressure cylinder 53 is locked through the locking piece 55, so that the stability of the heat conduction cylinder 33 is ensured in the process of stirring asphalt, and at the moment, the air vent 52 is communicated with the inner cavity of the cylinder 31, so that the air pressure inside the cylinder 31 is kept at a certain value in the process of being heated stably; after the asphalt detection is cooled, the locking piece 55 is used for unlocking the pressing cylinder 53 again, the pressing cylinder 53 is moved upwards, then the heat conduction cylinder 33 is manually taken out, and the arc-shaped plate 50 is always attached to the heat conduction cylinder 33 due to the action of the annular spring 51, so that part of heat conduction liquid adhered to the outer wall of the heat conduction cylinder 33 is scraped in the process of removing the heat conduction cylinder 33, and the later cleaning of the heat conduction cylinder 33 is facilitated.
As shown in fig. 2, 3 and 4, the locking piece 55 comprises a first ear plate 550, the right side of the pressing cylinder 53 is provided with a first ear plate 550, a second ear plate 551 is arranged on the cylinder column 31 under the first ear plate 550, a limit column 552 is mounted on the lower end face of the first ear plate 550, the lower end of the limit column 552 extends downwards and is in sliding fit with the second ear plate 551, two annular grooves 553 are formed in the limit column 552 along the axial direction of the limit column, a blocking plate 554 is arranged on one side, far away from the cylinder column 31, of the second ear plate 551, the blocking plate 554 is divided into an arc section and a horizontal section, the horizontal section of the blocking plate 554 is in rotary connection with the second ear plate 551 through a first torsion spring, and the arc section of the blocking plate 554 is matched with the annular grooves 553 to limit the movement of the limit column 552.
Specifically, during operation, the blocking plate is manually pushed to rotate, the arc section of the blocking plate 554 is made to rotate away from the annular groove 553, then the thermal conduction cylinder 53 is manually moved upwards, meanwhile, the limiting column 552 is made to move upwards, at this time, the blocking plate 554 is released, under the action of the first torsion spring, the blocking plate 554 is close to the limiting column 552, then the annular groove 553 located below can move to the position of the blocking plate 554 along with the upward movement of the limiting column 552, the arc section of the blocking plate 554 can be made to rotate into the current annular groove 553 under the action of the first torsion spring to limit the limiting column 552, so that the upward movement of the thermal conduction cylinder 53 is kept, at this time, the thermal conduction cylinder 33 containing asphalt can be manually placed on the thermal insulation plate 32, then the blocking plate 554 is manually rotated away from the current annular groove 553, the thermal conduction cylinder 53 is then released, the annular groove 553 at the upper part of the limiting column 552 moves to the position of the blocking plate 554, and the blocking plate 554 is rotated into the annular groove 553 at this time under the action of the first torsion spring to limit the thermal conduction cylinder 53 at this time, so that the movement of the arc plate 50 is limited, so that the thermal conduction cylinder 33 is ensured.
As shown in fig. 2, 3, 4 and 6, the circulating member 6 includes a base 61, the base 61 is mounted on the outer circumference of the right side of the column 31, a runner 62 is provided in front of and behind the base 61, through holes communicating with the two runners 62 are provided on the column 31, a circular groove 63 communicating with the two runners 62 is provided in the middle of the base 61, a shaft 64 is rotatably mounted in the circular groove 63, the right side of the shaft 64 extends to the outer side of the base 61, a turbine 65 is mounted on the shaft 64 in the circular groove 63, a stepping motor 66 is mounted on the right side of the base 61 through a motor base, and an output shaft of the stepping motor 66 is connected with the shaft 64 through a coupling.
When the heater 30 is powered on to heat the heat-conducting liquid, the stepping motor 66 drives the shaft lever 64 to rotate, the shaft lever 64 drives the turbine 65 to rotate, the heat-conducting liquid is sucked out from the rear side flow channel 62 in the rotating process of the turbine 65 and then is flushed into the barrel column 31 again through the circular groove 63 and the front side flow channel 62, so that the heat-conducting liquid in the barrel column 31 can be circularly flowed, uniform heating of the heat-conducting liquid is ensured, multi-angle synchronous constant-temperature heating of asphalt is further improved, and meanwhile, the stirring of the testing mechanism 4 is matched, stable temperature rise of the asphalt is ensured, and the viscosity testing precision is improved.
As shown in fig. 1, 7, 8 and 9, the testing mechanism 4 includes a fixing rod 40, the fixing rod 40 is coaxially mounted at the position of the output shaft of the main body 2 of the testing machine, the fixing rod 40 is in running fit with the output shaft of the main body 2 of the testing machine, a rectangular groove 41 is formed in the lower end face of the fixing rod 40, a stirring rod 42 and a stud 43 are sequentially and slidably mounted in the rectangular groove 41 from left to right, a square groove 44 is formed in the lower end face of the output shaft of the main body 2 of the testing machine, upper end faces of the stirring rod 42 and the stud 43 are of rectangular structures matched with the square groove 44, an adjusting plate 45 is rotatably mounted on the lower end face of the fixing rod 40, and an adjusting unit 7 for adjusting the positions of the stirring rod 42 and the stud 43 is arranged on the adjusting plate 45.
During specific work, when the heat conducting liquid is used as a heat conducting medium to heat asphalt, the main body 2 of the testing machine descends, the stirring rod 42 is inserted into the asphalt, the main body 2 of the testing machine drives the stirring rod 42 to rotate, the asphalt is heated uniformly, after the asphalt is heated to a specific temperature, the external rotor is firstly inserted into the asphalt in an inclined mode, so as to reduce bubbles, then the external rotor is vertically connected with the stud 43, the stirring rod 42 continues to rotate, the heater 30 synchronously heats the external rotor, after the external rotor is preheated, the stirring rod 42 stops stirring, the stud 43 is manually driven to be close to the output shaft of the main body 2 of the testing machine by rotating the adjusting plate 45 under the action of the adjusting unit 7, the stirring rod 42 is separated from the output shaft of the main body 2 of the testing machine, the stud 43 is matched with the square groove 44 of the output shaft of the main body 2 of the testing machine, and then the stud 43 is driven by the output shaft of the main body 2 of the testing machine to rotate, and the stud 43 drives the external rotor to rotate in the asphalt so as to perform viscosity testing of the asphalt.
As shown in fig. 7, 8, 9 and 10, the adjusting unit 7 includes a guide groove 70, the adjusting plate 45 is provided with the guide groove 70, the guide groove 70 is formed by three arc sections in a tangential manner, the inner wall of the guide groove 70 is provided with a limit groove 71 along the track thereof, the stirring rod 42 and the stud 43 are in sliding fit with the limit groove 71 through bearings, the circumferential outer wall of the fixing rod 40 is provided with a fixing plate 72 in bilateral symmetry, the outer wall of the stirring rod 42 below the adjusting plate 45 and the outer wall of the stud 43 are provided with slip rings 73 in a rotating manner, a tension spring 74 is arranged between the fixing plate 72 and the corresponding slip ring 73, and the front side of the adjusting plate 45 is provided with a limit piece 75.
As shown in fig. 7 and 8, the limiting member 75 includes a limiting plate 750, the limiting plate 750 is mounted on the front side of the adjusting plate 45 through a second torsion spring, the limiting plate 750 is in an L-shaped structure, and two positioning grooves 751 matched with the limiting plate 750 are formed in the circumferential outer wall of the fixing rod 40 along the circumferential direction of the fixing rod.
Specifically, during operation, the limiting plate 750 is manually rotated to the outside, so that the limiting plate 750 is far away from the current positioning groove 751, then the adjusting plate 45 is rotated through the limiting plate 750, in the process of rotating the adjusting plate 45, the inner wall of the right circular arc section of the guide groove 70 is abutted against the stud 43, along with the rotation of the adjusting plate 45 and the limitation of the rectangular groove 41, the stud 43 is abutted against and pushed by the guide groove 70 to approach the output shaft of the main body 2 of the testing machine, meanwhile, the tension spring 74 connected with the stud is stretched, meanwhile, the other tension spring 74 in the stretched state is stretched, in the process of rotating the adjusting plate 45, the abutting position of the guide groove 70 and the stirring rod 42 is changed, under the action of the tension spring 74, the stirring rod 42 is pulled away from the output shaft of the main body 2 of the testing machine, after the limiting plate 750 is rotated to the position of the lower positioning groove 751, the rectangular section of the stud 43 is matched with the square groove 44, then the limiting plate 750 is released, and the limiting plate 750 is rotated to the position of the positioning groove 751 under the action of the second torsion spring to limit the stud 45, so that the driving of the output shaft 43 of the main body 2 of the testing machine is ensured.
As shown in fig. 3 and 4, the inner arc of the upper part of the arc plate 50 is an inclined surface; in particular, the inclined surface can easily guide and push the arc plate 50 to move outwards in the process of manually placing the heat conduction barrel 33 so as to perform opening adjustment, and the heat conduction barrel 33 can be conveniently moved and placed on the heat-resisting plate 32.
When the application is used for testing the viscosity of the rubber asphalt, a proper amount of asphalt to be tested is firstly manually taken out and placed into the heat conducting barrel 33, then the heat conducting barrel 33 is placed on the heat-resisting plate 32, the heat conducting barrel 33 is limited by the limiting unit 5, so that the influence of the movement of the heat conducting barrel 33 on a test result in the asphalt stirring process is avoided, then the rubber asphalt is heated by taking heat conducting liquid as heat conducting medium, so that the uniform and stable temperature rise of the asphalt is ensured, the testing precision is improved, after the asphalt is heated to a specific temperature, the rotor is firstly inserted into the asphalt to be preheated, then the bag drives the rotor to rotate to carry out viscosity test on the asphalt, after the test is finished, the rotor is removed, the rotor is cleaned in time, and the heat conducting barrel 33 is cleaned, so that the next use is facilitated.
In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Furthermore, the terms "first," "second," "first," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second", "first", "second" may include at least one such feature, either explicitly or implicitly. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application; all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (5)
1. A rubber asphalt viscosity testing device comprises a bottom plate (1); the method is characterized in that: the base plate (1) is of an isosceles triangle structure, a heating mechanism (3) for heating the rubber asphalt is arranged on the right side of the base plate (1), a testing machine main body (2) is arranged on the left side of the heating mechanism (3), and a testing mechanism (4) for stirring and detecting the rubber asphalt is arranged on the testing machine main body (2); wherein:
the heating mechanism (3) comprises a heater (30), the right upper end face of the bottom plate (1) is provided with the heater (30), the upper end face of the heater (30) is provided with a cylinder column (31), the circumference outer wall of the cylinder column (31) is provided with a heat insulation layer, heat conduction liquid is filled in the cylinder column (31), the bottom wall of the inner cavity of the cylinder column (31) is provided with a heat-insulating plate (32), meshes are uniformly formed in the heat-insulating plate (32), the upper end face of the heat-insulating plate (32) is provided with a heat-conducting cylinder (33) for containing rubber asphalt, the upper part of the cylinder column (31) is provided with a limiting unit (5) for limiting the movement of the heat-conducting cylinder (33), and the right side of the cylinder column (31) is provided with a circulating piece (6) for driving the heat conduction liquid to flow;
the testing mechanism (4) comprises a fixed rod (40), the fixed rod (40) is coaxially arranged at the position of an output shaft of the testing machine body (2), the fixed rod (40) is in running fit with the output shaft of the testing machine body (2), a rectangular groove (41) is formed in the lower end face of the fixed rod (40), a stirring rod (42) and a stud (43) are sequentially and slidably arranged in the rectangular groove (41) from left to right, a square groove (44) is formed in the lower end face of the output shaft of the testing machine body (2), the upper end faces of the stirring rod (42) and the stud (43) are of rectangular structures matched with the square groove (44), an adjusting plate (45) is rotatably arranged on the lower end face of the fixed rod (40), and an adjusting unit (7) for adjusting the positions of the stirring rod (42) and the stud (43) is arranged on the adjusting plate (45);
the adjusting unit (7) comprises a guide groove (70), the guide groove (70) is formed in the adjusting plate (45), the guide groove (70) is formed by three sections of arc sections in a tangent mode, a limit groove (71) is formed in the inner wall of the guide groove (70) along the track of the guide groove, the stirring rod (42) and the stud (43) are in sliding fit with the limit groove (71) through bearings, a fixing plate (72) is respectively arranged on the left and right symmetrical portion of the circumferential outer wall of the fixing rod (40), a sliding ring (73) is rotatably arranged on the outer wall of the stirring rod (42) below the adjusting plate (45) and the outer wall of the stud (43), a tension spring (74) is arranged between the fixing plate (72) and the corresponding sliding ring (73), and a limiting piece (75) is arranged on the front side of the adjusting plate (45);
the limiting piece (75) comprises a limiting plate (750), the limiting plate (750) is installed on the front side of the adjusting plate (45) through the cooperation of a second torsion spring in a rotating mode, the limiting plate (750) is of an L-shaped structure, and two positioning grooves (751) matched with the limiting plate (750) are formed in the circumferential outer wall of the fixing rod (40) along the circumferential direction of the fixing rod.
2. The rubberized asphalt viscosity testing apparatus of claim 1, wherein: limiting element (5) include arc (50), the up end of section of thick bamboo post (31) evenly slidable mounting has a plurality of arcs (50) along its circumference direction, and a ring is constituteed to a plurality of arcs (50), and one side that section of thick bamboo post (31) axle center was kept away from to a plurality of arcs (50) is provided with a ring spring (51) jointly, vent (52) are offered to one side that section of thick bamboo post (31) axle center was kept away from to two adjacent arcs (50), the outer circular arc department on arc (50) upper portion is the inclined plane, section of thick bamboo post (31) upper portion slidable mounting has a section of thick bamboo (53) that presses, the inner chamber bottom of section of thick bamboo (53) is provided with pressing ring piece (54) that contradicts with the inclined plane of arc (50), be provided with on section of thick bamboo post (31) and be used for fixing locking piece (55) of pressing a section of thick bamboo (53).
3. The rubberized asphalt viscosity testing apparatus of claim 1, wherein: the circulating piece (6) include base (61), the right side circumference externally mounted of section of thick bamboo post (31) has base (61), dislocation has respectively been seted up around the inside of base (61) one runner (62), the through-hole that is linked together with two runners (62) has been seted up on section of thick bamboo post (31) respectively, circular slot (63) that are linked together with two runners (62) are seted up at the middle part of base (61), shaft lever (64) are installed in the inside rotation of circular slot (63), the right side of shaft lever (64) extends to the outside of base (61), install turbine (65) on shaft lever (64) of circular slot (63) inside, step motor (66) are installed on the right side of base (61) through the motor cabinet, the output shaft of step motor (66) is connected with shaft lever (64) through the shaft coupling.
4. The rubberized asphalt viscosity testing apparatus of claim 2, wherein: the locking piece (55) include otic placode (550), pressure section of thick bamboo (53) right side is provided with otic placode (550), be provided with No. two otic placodes (551) on barrel post (31) under otic placode (550), terminal surface installation spacing post (552) under otic placode (550), spacing post (552) lower extreme downwardly extending and with No. two otic placode (551) sliding fit, two ring grooves (553) have been seted up along its axial direction to spacing post (552), one side that barrel post (31) were kept away from to No. two otic placodes (551) is provided with barrier plate (554), barrier plate (554) divide into arc section and horizontal segment, the horizontal segment of barrier plate (554) is through No. one torsional spring cooperation and No. two otic placodes (551) rotate to be connected, the arc section and the ring groove (553) cooperation of barrier plate (554) are used for restricting the removal of spacing post (552).
5. The rubberized asphalt viscosity testing apparatus of claim 2, wherein: the inner circular arc at the upper part of the arc-shaped plate (50) is an inclined plane.
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| CN116223306A (en) | 2023-06-06 |
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