CN112284859A - Molding equipment for asphalt mixture test piece and using method - Google Patents
Molding equipment for asphalt mixture test piece and using method Download PDFInfo
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- CN112284859A CN112284859A CN202011364571.5A CN202011364571A CN112284859A CN 112284859 A CN112284859 A CN 112284859A CN 202011364571 A CN202011364571 A CN 202011364571A CN 112284859 A CN112284859 A CN 112284859A
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- 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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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Abstract
The invention discloses a molding device and a using method of an asphalt mixture test piece.A blanking device comprises a vertically through container, and stirring blades are arranged in the container; the rolling forming device comprises two threaded rods, two limiting rails, a rolling wheel and a telescopic device for applying pressure to the rolling wheel, wherein each threaded rod is provided with a forward thread from one end to the middle position and a reverse thread from the other end to the middle position, the two threaded rods are arranged in parallel in a right-to-right mode, and the two threaded rods can synchronously rotate around the axes of the two threaded rods; two ends of one limiting rail are correspondingly matched and connected with the forward threads of the two threaded rods respectively, and two ends of the other limiting rail are correspondingly matched and connected with the reverse threads of the two threaded rods respectively; the grinding wheel stretches over the two limiting rails, the telescopic device is arranged above the grinding wheel, the two ends of the grinding wheel are rotatably connected with the telescopic rods of the telescopic device, and the telescopic device can reciprocate along the direction of the limiting rails. The invention reduces the influence of personal errors and improves the molding efficiency of the test piece.
Description
Technical Field
The invention belongs to the field of road engineering tests, and particularly relates to a molding device and a using method of an asphalt mixture test piece.
Background
The asphalt mixture is used as one of main paving materials of high-grade pavements, has excellent performance, simple and convenient paving, convenient maintenance and good comfort, and has been widely noticed and researched by people all the time. Nowadays, more and more high-performance pavements and functional pavements are coming into the field of vision of people, and the construction technology and equipment of asphalt pavements also tend to be perfect.
In an indoor asphalt mixture performance test, a compaction method and a traditional wheel mill are usually adopted to form a test piece, but the compaction method and the traditional wheel mill have respective defects, the compaction method cannot well simulate the actual pavement compaction process, and a compaction hammer can cause stone crushing; traditional wheel mill appearance mould size is fixed, can only satisfy the requirement of few test of minority, and can only the shaping rut board once, and efficiency is not high. In addition, the two methods both need manual filling of the mixture, the influence of human factors is large, uneven filling, layered segregation and the like are easily caused, so that differences are generated among test pieces, and the test results are adversely affected.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the molding equipment and the using method of the asphalt mixture test piece, which are used for simulating the rolling process of a real pavement, optimizing the manufacturing process of the asphalt mixture test piece, reducing the influence of human errors, improving the molding efficiency of the test piece, being capable of molding test pieces with different sizes and shapes and having strong applicability.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the molding equipment for the asphalt mixture test piece comprises a blanking device and a rolling molding device, wherein the blanking device comprises a container which is communicated up and down, and stirring blades are arranged in the container; the rolling forming device comprises two threaded rods, two limiting rails, a rolling wheel and a telescopic device for applying pressure to the rolling wheel, wherein each threaded rod is provided with a forward thread from one end to the middle position and a reverse thread from the other end to the middle position, the two threaded rods are opposite and parallel, and the two threaded rods can synchronously rotate around the axes of the two threaded rods; two ends of one limiting rail are correspondingly matched and connected with the forward threads of the two threaded rods respectively, two ends of the other limiting rail are correspondingly matched and connected with the reverse threads of the two threaded rods respectively, and a forming die is placed between the two limiting rails; the running roller spanes two spacing rail top, the telescoping device sets up the top of running roller, the both ends of running roller with the telescopic link of telescoping device rotates to be connected, the telescoping device can be followed spacing rail direction reciprocating motion.
Further, unloader still includes just to two backup pads that set up, the flourishing glassware is fixed between the backup pad, it has the dwang to run through in the flourishing glassware, the one end of dwang is connected with a drive arrangement, stirring vane connects on the dwang.
Further, the dwang is cavity pole, be provided with the thermometer in the dwang, the thermometer is followed the other end of dwang inserts the dwang.
Further, the bottom of containing vessel articulates there is the striker plate, two just right position has seted up the bar hole respectively in the backup pad, two be provided with the control lever between the backup pad, two are passed respectively at the both ends of control lever the bar hole, the control lever is used for control the switching of striker plate.
Further, an arc-shaped guide chute is arranged below the container.
Furthermore, the rolling forming device also comprises two bearing seats, the two bearing seats are arranged oppositely, one threaded rod is rotationally connected to one bearing seat, and the other threaded rod is rotationally connected to the other bearing seat; two the one end of threaded rod is connected with first gear respectively, two first gear passes through first driving chain and connects, and arbitrary first gear connection has second drive arrangement, second drive arrangement sets up arbitrary on the bearing seat.
Furthermore, two sliding rods are connected between the two bearing seats, the two sliding rods are connected through two pull rods and can slide along the sliding rods, sliding boxes are sleeved on the two sliding rods in a hollow mode, and the two pull rods are located in the sliding boxes; the two pressure bearing seats are respectively provided with a second gear, the two second gears are connected through a second transmission chain, one end of the second transmission chain penetrates through the sliding box and then winds through one of the second gears and then is connected with one of the pull rods, the other end of the second transmission chain penetrates through the sliding box and then winds through the other of the second gears and then is connected with the other of the second gears, and any one of the second gears is connected with a third driving device.
Further, the rolling forming device comprises a base, and the blanking device and the rolling forming device are fixed on the base.
The use method of the molding equipment of the bituminous mixture test piece comprises the steps of pouring the bituminous mixture into a container of a blanking device, and uniformly stirring the bituminous mixture through stirring blades;
the asphalt mixture in the container uniformly falls into a forming die;
after the asphalt mixture is filled in the forming mold, compacting the asphalt mixture in the forming mold, and moving the compacted asphalt mixture to a position between two limiting rails of a rolling forming device to enable the upper end of the forming mold to be flush with the upper end surfaces of the limiting rails;
controlling the two threaded rods to synchronously rotate around the axes of the threaded rods, so that the two limiting rails are fastened and fixed on the forming die;
controlling a telescopic rod of the telescopic device to enable the grinding wheel to fall onto the limiting rail and apply preset pressure, and controlling the telescopic device to reciprocate along the direction of the limiting rail to drive the grinding wheel to grind the asphalt mixture in the forming die;
after rolling reaches the preset number of times, the telescopic rod of the telescopic device is controlled to enable the rolling wheel to ascend, the two threaded rods are controlled to rotate synchronously around the axis of the threaded rods, the two limiting rails are enabled to move outwards, and the formed test piece is taken out.
Compared with the prior art, the invention has at least the following beneficial effects: when the forming equipment for the asphalt mixture test piece is used, the asphalt mixture is added into the container of the blanking device, the asphalt mixture is continuously stirred by the stirring blades in the container, and the asphalt mixture is conveyed into the forming mold while being stirred. The positive thread and the negative thread are arranged on the threaded rod, the distance between the two limiting rails is controlled to be adjusted by synchronously rotating the two threaded rods around the axes of the threaded rods, the forming die can adapt to various forming dies with different sizes, the forming of various test pieces is realized, the forming efficiency of the test pieces is improved, the grinding wheel is matched with the expansion device for applying pressure to the grinding wheel for grinding and forming, the grinding process of a real road surface is better met, the formed test pieces are uniform in inner part, and the structure is good. The blanking device and the rolling forming device are integrally matched, so that the test piece manufacturing process is simplified, the test workload is reduced, a plurality of test pieces can be formed at one time, and the forming efficiency is improved.
Furthermore, the thermometer inserted into the rotating rod can observe the temperature change of the asphalt mixture in the container in real time, so that the temperature of the test piece during molding is accurately controlled, and the reliability of the molded test piece is improved.
Furthermore, the material blocking plate is hinged to the bottom of the material container, the opening and closing of the material blocking plate are controlled through the control rod, the adding amount of the asphalt mixture is convenient to control, and the test environment pollution and waste caused by the fact that the redundant asphalt mixture is scattered to the outside are avoided.
Furthermore, an arc-shaped guide chute is arranged below the container, so that the asphalt mixture in the container can be slowly fed into a forming die, and the addition of the asphalt mixture can be better controlled.
Furthermore, the invention realizes the synchronous rotation of the two threaded rods by utilizing the two gears and the transmission chain, has simple structure and low manufacturing cost, and is convenient to operate and control.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a blanking device of the present invention;
FIG. 3 is a schematic view of the rolling and forming apparatus of the present invention;
FIG. 4 is a schematic view of the internal structure and rolling process of the rolling forming apparatus according to the present invention;
FIG. 5 is a schematic view of the internal structure and rolling process of the rolling forming apparatus according to the present invention;
FIG. 6 is a schematic view of the internal structure of the rolling and forming apparatus according to the present invention;
FIG. 7 is a schematic view of the invention in use with a mixing pan.
In the figure: 1-a blanking device; 101-a container; 102-stirring blades; 103-a support plate; 104-rotating rods; 105-a first drive; 106-thermometer; 107-arc guide chute; 108-strip-shaped holes; 109-a control lever; 110-a striker plate; 111-a positioning ring; 112-a positioning rod; 2-rolling and forming device; 201-threaded rod; 202-limit rail; 203-a first gear; 204-a first drive chain; 205-second driving means; 206-a grinding wheel; 207-telescoping devices; 208-a telescoping rod; 209-pressure bearing seat; 210-a slide bar; 211-a slide box; 212-a pull rod; 213-a second gear; 214-a second drive chain; 215-third driving means; 3-forming a mould; 4-a base; 5-mixing pot; 6-cushion block.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As a specific embodiment of the present invention, as shown in fig. 1, a molding apparatus for an asphalt mixture test piece includes a feeding device 1, a rolling forming device 2, and a base 4, wherein the feeding device 1 and the rolling forming device 2 are fixed on the base 4, the feeding device 1 is used for stirring an asphalt mixture and feeding the asphalt mixture into a molding die 3, and the rolling forming device 2 is used for rolling and forming the asphalt mixture in the molding die 3.
Specifically, as shown in fig. 1 and fig. 2, the blanking device 1 includes a container 101, a stirring blade 102, two supporting plates 103, a rotating rod 104 and a first driving device 105, the two supporting plates 103 are oppositely disposed and fixed on the base 4, the container 101 is fixed between the supporting plates 103, preferably, in order to ensure the stability of the container 101, a positioning ring 111 is further clamped on the upper portion of the container 101, and the positioning ring 111 is fixed between the supporting plates 103. Dwang 104 runs through container 101, and the one end of dwang 104 is connected with first drive arrangement 105, and stirring vane 102 is connected on dwang 104, and first drive arrangement 105 is used for driving dwang 104 to rotate, and then drives stirring vane 102 and carry out abundant stirring to the bituminous mixture in container 101, and in this embodiment, first drive arrangement 105 adopts the motor.
In order to accurately grasp the temperature of the asphalt mixture in the container 101 in real time, the rotating rod 104 is of a hollow structure, the thermometer 106 is arranged in the rotating rod 104, the thermometer 106 is an electronic thermometer, the thermometer 106 is inserted into the rotating rod 104 from the other end of the rotating rod 104, and the temperature of the asphalt mixture in the container 101 is measured in real time by the thermometer 106. Simultaneously, articulated in the bottom of container 101 have striker plate 110, bar hole 108 has been seted up respectively to the just right position on two backup pads 103, is provided with control lever 109 between two backup pads 103, and two bar holes 108 are passed respectively at the both ends of control lever 109, and control lever 109 is used for controlling striker plate 110's switching. During the stirring, support striker plate 110 through control rod 109 and make striker plate 110 close, when bituminous mixture's temperature cooled to the temperature that is fit for rolling the shaping, stir control rod 109 and make striker plate 110 open, send into forming die 4 with the bituminous mixture in the container 101 in.
Preferably, in order to slowly feed the asphalt mixture in the container 101 into the forming mold 4, an arc-shaped material guiding chute 107 is further disposed below the container 101, as shown in fig. 2, a positioning rod 112 is fixed between the two supporting plates 103, the arc-shaped material guiding chute 107 is fixedly mounted on the positioning rod 112, and after the material blocking plate 110 is opened, the asphalt mixture slowly flows into the forming mold 4 through the arc-shaped material guiding chute 107.
As shown in fig. 1, 3, 4, 5 and 6, the rolling forming device 2 includes two threaded rods 201, two limit rails 202, a rolling wheel 206, a telescopic device 207 for applying pressure to the rolling wheel 206 and two bearing seats 209, the two bearing seats 209 are fixed on the base 4, one threaded rod 201 is rotatably connected to one bearing seat 209, and the other threaded rod 201 is rotatably connected to the other bearing seat 209; each threaded rod 201 is provided with a forward thread from one end to the middle position, a reverse thread from the other end to the middle position, the two threaded rods 201 are arranged oppositely and in parallel, and the two threaded rods 201 can rotate synchronously around the axis of the two threaded rods 201. The two ends of one limit rail 202 are respectively and correspondingly matched and connected with the forward threads of the two threaded rods 201, the two ends of the other limit rail 202 are respectively and correspondingly matched and connected with the reverse threads of the two threaded rods 201, and the two limit rails 202 are used for placing the forming die 3. When two threaded rods 201 rotate around self axis in step, the distance between two spacing rails 202 can increase or reduce, can adapt to the forming die 3 of multiple not unidimensional, realizes the shaping of multiple test piece.
In this embodiment, as shown in fig. 4 and 5, one end of each of the two threaded rods 201 is connected to a first gear 203, the two first gears 203 are connected by a first transmission chain 204, any one of the first gears 203 is connected to a second driving device 205, the second driving device 205 is a motor, the second driving device 205 is disposed on any one of the pressure bearing seats 209, and the second driving device 205 drives the first gear 203 to rotate so as to drive the two threaded rods 201 to rotate synchronously by the first transmission chain 204.
As shown in fig. 1 and 5, the grinding wheel 206 spans over the two limit rails 202, the expansion device 207 is disposed above the grinding wheel 206, two ends of the grinding wheel 206 are rotatably connected with the expansion rods 208 of the expansion device 207, the expansion device 207 can reciprocate along the direction of the limit rails 202, and the expansion and contraction of the expansion rods 208 of the expansion device 207 are controlled to adjust the pressure when the grinding wheel 206 grinds the asphalt mixture. In this embodiment, the telescopic device 207 is a hydraulic cylinder, but a pressure device such as an air cylinder may be used.
As shown in fig. 5 and 6, two sliding rods 210 are fixedly connected between the two bearing seats 209, the two sliding rods 210 are connected through two pull rods 212, the two pull rods 212 can slide along the sliding rods 210, sliding boxes 211 are also sleeved on the two sliding rods 210, and the two pull rods 212 are located in the sliding boxes 211; the two pressure bearing seats 209 are respectively provided with a second gear 213, the two second gears 213 are connected through a second transmission chain 214, one end of the second transmission chain 214 passes through the sliding box 211 and then winds through one second gear 213 to be connected with one pull rod 212, the other end of the second transmission chain passes through the sliding box 211 and then winds through the other second gear 213 to be connected with the other pull rod 212, and any one second gear 213 is connected with a third driving device 215. In this embodiment, the third driving device 215 selects a motor, the third driving device 215 drives the second gear 213 to rotate, when the second driving chain 214 rotates, the pull rod 212 is pulled by the second driving chain 214 to slide along the slide bar 210, when the pull rod 212 slides along the slide bar 210, the pull rod 212 slides along the slide bar 210 against the slide box 211, and then the telescopic device 207 is driven to slide left and right, and then the rolling wheel 206 is driven to continuously roll the asphalt mixture, so as to complete the molding of the asphalt mixture test piece.
As shown in fig. 7, when the present invention is used, the present invention is used in combination with an existing mixing pot 5, and in addition, the present invention is also provided with a cushion block 6, after a forming mold 3 is placed between two limit rails 202, the height of the forming mold 3 is adjusted by using the cushion block 6, so that the upper end surface of the forming mold 3 and the upper end surface of the limit rails 202 are positioned in the same horizontal plane.
As shown in fig. 7, the steps of the present invention are as follows:
pouring the prepared mineral aggregate, mineral powder and asphalt into a mixing pot in sequence for stirring, rotating the mixing pot 6 after stirring to pour the asphalt mixture into a container of a blanking device, starting a first driving device switch, further stirring the asphalt mixture uniformly at a slow speed, and observing the temperature change on a thermometer inserted in a rotating rod;
placing a forming die prepared in advance under an arc-shaped guide chute of a blanking device, opening a material baffle plate when the temperature of the asphalt mixture reaches the rolling temperature, and simultaneously keeping the stirring blades to continue rotating so that the mixture uniformly falls into the forming die;
after the asphalt mixture is filled in the forming mold, closing the material baffle plate, filling the next forming mold, slightly compacting the asphalt mixture in the filled forming mold, and moving the filled asphalt mixture between two limit rails of the rolling forming device;
placing the forming die filled with the mixture on the upper part of the cushion block, enabling the upper end of the forming die to be flush with the navigation end face of the limit rail, starting a second driving device, enabling the two limit rails to be fastened and fixed with the forming die and then closed, starting a pressurizing system, namely controlling the grinding wheel to fall onto the limit rails through the telescopic device and applying preset pressure, and starting a third driving device to enable the grinding wheel to grind the mixture back and forth;
after rolling for a preset number of times, the third driving device is closed, the pressurizing system is started, the rolling wheel is controlled to ascend through the telescopic device, the second driving device is started, the two limiting rails are enabled to move outwards, the formed test piece is taken out, and the power supply and the cleaning device are turned off.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The molding equipment for the asphalt mixture test piece is characterized by comprising a blanking device (1) and a rolling molding device (2), wherein the blanking device (1) comprises a container (101) which is communicated up and down, and stirring blades (102) are arranged in the container (101); the rolling forming device (2) comprises two threaded rods (201), two limiting rails (202), a rolling wheel (206) and a telescopic device (207) for applying pressure to the rolling wheel (206), wherein each threaded rod (201) is provided with a forward thread from one end to the middle position and a reverse thread from the other end to the middle position, the two threaded rods (201) are arranged oppositely and parallelly, and the two threaded rods (201) can rotate synchronously around the axis of the threaded rods; two ends of one limiting rail (202) are correspondingly matched and connected with the forward threads of the two threaded rods (201) respectively, two ends of the other limiting rail (202) are correspondingly matched and connected with the reverse threads of the two threaded rods (201) respectively, and a forming die (3) is placed between the two limiting rails (202); the utility model discloses a spacing track (202) of rolling wheel (206), including limit rail (202), telescoping device (207), the rolling wheel (206) span two limit rail (202) top, telescoping device (207) set up the top of rolling wheel (206), the both ends of rolling wheel (206) with telescopic link (208) swivelling joint of telescoping device (207), telescoping device (207) can follow limit rail (202) direction reciprocating motion.
2. The molding equipment for the asphalt mixture test piece according to claim 1, wherein the blanking device (1) further comprises two support plates (103) which are arranged oppositely, the container (101) is fixed between the support plates (103), a rotating rod (104) penetrates through the container (101), one end of the rotating rod (104) is connected with a first driving device (105), and the stirring blade (102) is connected to the rotating rod (104).
3. The equipment for molding the asphalt mixture test piece according to claim 2, wherein the rotating rod (104) is a hollow rod, a thermometer (106) is arranged in the rotating rod (104), and the thermometer (106) is inserted into the rotating rod (104) from the other end of the rotating rod (104).
4. The forming equipment for the asphalt mixture test piece according to claim 2, wherein a material baffle (110) is hinged to the bottom of the container (101), strip-shaped holes (108) are respectively formed in positions, which are opposite to the two support plates (103), a control rod (109) is arranged between the two support plates (103), two ends of the control rod (109) respectively penetrate through the two strip-shaped holes (108), and the control rod (109) is used for controlling the material baffle (110) to be opened and closed.
5. The molding equipment for the asphalt mixture test piece according to claim 1, wherein an arc-shaped guide chute (107) is arranged below the container (101).
6. The molding equipment for the asphalt mixture test piece according to claim 1, wherein the rolling molding device (2) further comprises two pressure bearing seats (209), the two pressure bearing seats (209) are arranged oppositely, one threaded rod (201) is rotatably connected to one pressure bearing seat (209), and the other threaded rod (201) is rotatably connected to the other pressure bearing seat (209); one end of each of the two threaded rods (201) is connected with a first gear (203), the two first gears (203) are connected through a first transmission chain (204), any one of the first gears (203) is connected with a second driving device (205), and the second driving device (205) is arranged on any one of the pressure bearing seats (209).
7. The molding equipment for the asphalt mixture test piece according to claim 6, wherein two sliding rods (210) are connected between the two pressure bearing seats (209), the two sliding rods (210) are connected through two pull rods (212), the two pull rods (212) can slide along the sliding rods (210), a sliding box (211) is sleeved on the two sliding rods (210) in a hollow manner, and the two pull rods (212) are positioned in the sliding box (211); two be provided with second gear (213) on bearing seat (209) respectively, two second gear (213) are connected through second driving chain (214), the one end of second driving chain (214) is passed around one behind sliding box (211) with one behind second gear (213) pull rod (212) are connected, and the other end passes around another behind sliding box (211) with another behind second gear (213) with another pull rod (212) are connected, arbitrary second gear (213) are connected with third drive arrangement (215).
8. The equipment for molding the asphalt mixture test piece according to any one of claims 1 to 7, further comprising a base (4), wherein the blanking device (1) and the rolling and molding device (2) are fixed on the base (4).
9. The forming equipment and the using method of the asphalt mixture test piece according to claim 8 are characterized in that,
pouring the asphalt mixture into a container (101) of the blanking device (1), and uniformly stirring the asphalt mixture through stirring blades (102);
the asphalt mixture in the container (101) uniformly falls into the forming die (3);
after the forming mold (3) is filled with the asphalt mixture, compacting the asphalt mixture in the forming mold (3) and then moving the asphalt mixture to a position between two limiting rails (202) of the rolling forming device (2) to enable the upper end of the forming mold (3) to be flush with the upper end surfaces of the limiting rails (202);
controlling the two threaded rods (201) to synchronously rotate around the axes of the threaded rods, so that the two limit rails (202) are fastened and fixed on the forming die (3);
controlling a telescopic rod (208) of the telescopic device (207) to enable the grinding wheel (206) to fall onto the limiting rail (202) and apply preset pressure, controlling the telescopic device (207) to reciprocate along the direction of the limiting rail (202) to drive the grinding wheel (206) to grind the asphalt mixture in the forming die (3);
after rolling for a preset number of times, the telescopic rod (208) of the telescopic device (207) is controlled to enable the rolling wheel (206) to ascend, the two threaded rods (201) are controlled to synchronously rotate around the axis of the threaded rods, the two limiting rails (202) are enabled to move outwards, and a molded test piece is taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011364571.5A CN112284859A (en) | 2020-11-27 | 2020-11-27 | Molding equipment for asphalt mixture test piece and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011364571.5A CN112284859A (en) | 2020-11-27 | 2020-11-27 | Molding equipment for asphalt mixture test piece and using method |
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| CN112284859A true CN112284859A (en) | 2021-01-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049341A (en) * | 2021-04-12 | 2021-06-29 | 武汉理工大学 | Indoor rolling forming device for asphalt mixture and test piece manufacturing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049341A (en) * | 2021-04-12 | 2021-06-29 | 武汉理工大学 | Indoor rolling forming device for asphalt mixture and test piece manufacturing method |
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