An asphalt weighing apparatus for asphalt mixture mixing

Abstract

The utility model relates to the technical field of asphalt mixture mixing, specifically is a kind of asphalt weighing equipment for asphalt mixture mixing.The asphalt weighing equipment of the utility model includes weighing platform, electronic scale, sample bucket, discharge valve and moving mechanism, electronic scale is set on weighing platform, and electronic scale is used to weigh the asphalt to be added to asphalt mixer;Sample bucket is set on electronic scale, and sample bucket is used to contain asphalt, and discharge valve is installed on sample bucket;Moving mechanism is connected with weighing platform and asphalt mixer, when asphalt mixer needs to add asphalt, weighing platform is moved from the outside of asphalt mixer to its inside by moving mechanism, and sample bucket is added to asphalt mixer by opening discharge valve to make sample bucket contain asphalt. When asphalt is added to asphalt mixer by the asphalt weighing equipment, the value displayed based on electronic scale is directly read to improve the accuracy and safety of asphalt addition in the process of asphalt mixture mixing.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of asphalt mixture mixing, especially to an asphalt weighing equipment for asphalt mixture mixing. BACKGROUND

[0002] Asphalt pavement becomes the most popular pavement type for new construction and reconstruction due to its comfortable road performance, mature construction technology and sufficient material source. Before construction, the quality of the used asphalt and asphalt mixture must be detected, and only the asphalt with qualified quality can be applied to engineering projects. Due to the high temperature (about 190℃) of asphalt, the characteristics of not being able to be heated for multiple times (the number of heating times is not more than 2), and the characteristics of not being easy to clean due to the large viscosity, the requirements for the sample container are high. In order to prevent cross contamination of samples, the test institutions generally use original asphalt barrels or ordinary stainless steel basins for heating and sub-packaging, and the original asphalt barrels and the stainless steel basins are used once. Due to the fact that the original asphalt barrels and the stainless steel basins cannot measure the mixing volume of asphalt, the way of adding asphalt in the asphalt mixture mixing process is generally the "scooping method". Test personnel add the asphalt in multiple times according to the size of the spoon and their own experience, and the amount of the added asphalt is measured by an electronic scale. However, the operation process of the "reduction method" is complicated, and the spoon is often used as a measuring tool, and the amount of the added asphalt is often more than the required amount, which makes it difficult to guarantee the accuracy of the added asphalt. In addition, the test personnel are easy to be scalded, the clothes are easy to be stained, and the harmful gas is easy to be inhaled during the feeding process, which causes safety risks. CONTENT

[0003] In view of the above technical problems, the asphalt weighing equipment for asphalt mixture mixing improves the accuracy and safety of the added asphalt in the asphalt mixture mixing process.

[0004] The utility model embodiment provides the following scheme:

[0005] The utility model embodiment provides an asphalt weighing equipment for asphalt mixture mixing, and the equipment comprises:

[0006] A weighing platform;

[0007] An electronic scale is arranged on the weighing platform, and the electronic scale is used for weighing the asphalt to be added to the asphalt mixer;

[0008] A sample container is arranged on the electronic scale, and the sample container is used for containing the asphalt;

[0009] A feeding valve is installed on the sample container;

[0010] A moving mechanism is connected with the weighing platform and the asphalt mixer, and the moving mechanism is used for moving the weighing platform from the outside of the asphalt mixer to the inside of the asphalt mixer, so as to open the feeding valve and add the contained asphalt in the sample container to the asphalt mixer.

[0011] In an alternative embodiment, the device further comprises:

[0012] A limiting mechanism is connected with the weighing platform, and is used for limiting the moving position of the sample bucket.

[0013] In an alternative embodiment, the limiting mechanism comprises:

[0014] A fixed rod is vertically installed on the weighing platform;

[0015] A limiting ring is connected with the fixed rod, and is sleeved on the sample bucket.

[0016] In an alternative embodiment, the limiting ring comprises:

[0017] A first arc-shaped piece has one end connected with the fixed rod and the other end provided with a first fixed part outwardly curved;

[0018] A second arc-shaped piece has one end connected with the fixed rod and the other end provided with a second fixed part outwardly curved.

[0019] In an alternative embodiment, the limiting mechanism further comprises:

[0020] A clasp ring switch is installed on the first fixed part and the second fixed part.

[0021] In an alternative embodiment, the moving mechanism comprises:

[0022] A first hinged piece has a fixed part connected with a stand column of the asphalt mixer and a rotating shaft connected with the weighing platform.

[0023] In an alternative embodiment, the moving mechanism further comprises:

[0024] A second hinged piece has a fixed part connected with the stand column and is spaced apart from the first hinged piece by a preset distance in a vertical direction;

[0025] A diagonal brace has one end connected with the rotating shaft of the second hinged piece and the other end connected with the weighing platform.

[0026] In an alternative embodiment, an inner surface of the sample bucket is provided with an anti-sticking layer.

[0027] In an alternative embodiment, the discharging valve is a ball valve with an inner diameter greater than 10 mm.

[0028] In an alternative embodiment, an outer periphery of the sample bucket is provided with a pair of lifting ears symmetrically arranged along an axis thereof.

[0029] Compared with the prior art, the asphalt weighing device for asphalt mixture mixing has the following advantages:

[0030] The asphalt weighing equipment of the utility model discloses a weighing platform, electronic scale, sample bucket, discharge valve and moving mechanism, the electronic scale is arranged on the weighing platform, and the electronic scale is used for weighing the asphalt to be added to the asphalt mixer, the sample bucket is arranged on the electronic scale, and the sample bucket is used for containing the asphalt, and the discharge valve is installed on the sample bucket, and the moving mechanism is connected with the weighing platform and the asphalt mixer, when the asphalt mixer needs to add the asphalt, the weighing platform is moved from the outside of the asphalt mixer to the inside of the asphalt mixer through the moving mechanism, and the discharge valve is opened to make the sample bucket add the contained asphalt to the asphalt mixer. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present specification, and other drawings can also be obtained by those skilled in the art without creative labor.

[0032] Figure 1 The structure schematic view of the asphalt weighing equipment provided by the utility model embodiment is shown in the figure.

[0033] Figure 2 The structure schematic view of each component on the weighing platform provided by the utility model embodiment is shown in the figure.

[0034] Figure 3 The structure schematic view of the moving mechanism provided by the utility model embodiment is shown in the figure.

[0035] Figure 4 The structure schematic view of the limiting mechanism provided by the utility model embodiment is shown in the figure.

[0036] Figure 5 The structure schematic view of the sample bucket provided by the utility model embodiment is shown in the figure.

[0037] Mark 1-weighing platform, 2-electronic scale, 3-sample bucket, 4-discharge valve, 5-moving mechanism, 6-limiting mechanism, 7-lifting lug, 8-pan, 9-eccentric stirring shaft, 10-protective cover, 11-operation panel, 12-counterweight base, 13-stand;

[0038] 21-display screen, 22-key;

[0039] 51-first hinge piece, 52-second hinge piece, 53-inclined strut;

[0040] 61-fixing rod, 62-limiting ring;

[0041] 621-first arc-shaped piece, 622-second arc-shaped piece. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the protection scope of the embodiments of the present application.

[0043] A person skilled in the art can understand that the conventional process of asphalt mixture mixing operation is as follows: 1. loading aggregate into a tray according to the mixing ratio; 2. placing the separated aggregate, asphalt and mineral powder and the like into an oven for heating; 3. pouring the heated aggregate into a material holding pot and stirring uniformly; 4. accurately weighing the melted asphalt and adding it into the material holding pot and stirring uniformly; 5. accurately weighing the heated mineral powder and adding it into the material holding pot and stirring uniformly; and 6. pouring and pouring various test pieces.

[0044] The embodiment of the present application mainly optimizes the step 4 "accurately weighing the melted asphalt and adding it into the material holding pot". The traditional implementation process is as follows: first, the melted asphalt is taken out from the oven and placed on the electronic scale to remove the skin (including the spoon); then manually transported to the material holding pot of the asphalt mixer, the asphalt is scooped into the material holding pot with a metal spoon, and the weight is weighed; when the target weight is approached, the amount of each time is reduced to avoid exceeding the target value too much, until the target value is approached. This method is easy to cause the asphalt to be added in excess, and the dripping during the transfer of the asphalt causes the electronic scale, asphalt mixer, ground and other environments and equipment to be contaminated. The embodiment of the present application will specifically describe how to solve the above problems.

[0045] Please refer to Figure 1 , Figure 1 A structural schematic view of an asphalt weighing device for asphalt mixture mixing provided by the embodiment of the present application, the asphalt weighing device comprises a weighing platform 1, an electronic scale 2, a sample holding barrel 3, a discharge valve 4 and a moving mechanism 5, the asphalt weighing device can add asphalt to any asphalt mixer, and the embodiment of the present application will be specifically described taking a vertical mixer as an example.

[0046] The weighing platform 1 can be configured as a metal plate of a rectangular structure, for example, an iron plate or an aluminum alloy plate. The metal plate has high strength, and the thickness can be set to 2-5 mm, so that the load capacity is greater than 15 kg. The metal plate is arranged horizontally to form a platform capable of placing the electronic scale 2.

[0047] The model of the electronic scale 2 can be selected based on the actual weighing requirements of the asphalt, for example, an electronic scale with a range greater than 10 kg and an accuracy of not less than 0.1 g is selected. It should be noted that due to the space limitation of the vertical mixer, the height of the electronic scale is not higher than 150 mm. The electronic scale 2 is arranged on the weighing platform 1, and the electronic scale 2 is used to weigh the asphalt to be added to the asphalt mixer. Please refer to Figure 2 The electronic scale 2 is provided with a display screen 21 and a plurality of buttons 22. The weight of the asphalt being weighed can be read through the display screen 21, and the sample bucket 3 can be peeled and zeroed through the plurality of buttons 22 to obtain accurate asphalt weighing results.

[0048] The sample bucket 3 is used to hold asphalt and can be a cylindrical structure or a square structure, for example, a circular metal bucket with a diameter of 200-250 mm is selected. The specific size is as large as possible under the premise of meeting the net height difference between the material holding pot 8 and the protective cover 10 of the vertical mixer to increase the capacity of the sample bucket 3, while ensuring that the outlet of the discharge valve 4 can be directly opposite to the inside of the material holding pot 8. The sample bucket 3 is arranged on the electronic scale 2. In order to facilitate the cleaning of the asphalt in the sample bucket 3, the sample bucket 3 can be made of stainless steel; of course, a non-stick layer can also be provided on the inner surface of the sample bucket 3. A high-temperature resistant and anti-sticking coating can be sprayed on the inner wall of the sample bucket 3 for surface anti-sticking treatment. The non-stick layer has the characteristics of non-stick, high temperature resistance, wear resistance, etc. to facilitate the cleaning of the residual asphalt in the barrel and repeated use. The discharge valve 4 is installed on the sample bucket 3, and the discharge valve 4 can be a manual valve or an electric control valve based on actual requirements. Due to the high viscosity of asphalt, in order to reduce the influence of flow rate on the addition efficiency, the discharge valve 4 can be selected as a ball valve with an inner diameter greater than 10 mm, and the installation position is not higher than 10 mm from the bottom of the sample bucket 3. The length of the asphalt flow passage of the discharge valve 4 is less than a preset value to prevent the discharge valve 4 from being blocked by asphalt.

[0049] The moving mechanism 5 is connected with the weighing platform 1 and the asphalt mixer, and the moving mechanism 5 is used to move the weighing platform 1 from the outside of the asphalt mixer to the inside of the asphalt mixer to open the discharge valve 4 so that the sample bucket 3 adds the asphalt contained therein to the asphalt mixer. After completing the addition of asphalt, the discharge valve 4 is closed, and the weighing platform 1 is moved to the outside of the asphalt mixer by the moving mechanism 5.

[0050] It can be understood that the moving mechanism 5 can be a horizontal driving mechanism, for example, a linear driving mechanism with a screw structure. The driving mechanism drives the nut to rotate through the screw rod, and the weighing platform 1 is installed on the nut of the mechanism. By rotating the screw rod, the linear movement of the weighing platform 1 can be realized to move the weighing platform 1 from the outside of the asphalt mixer to the inside of the asphalt mixer. Of course, the moving mechanism 5 can also be set to other structures, which can move the weighing platform 1 to the inside of the asphalt mixer, and specific limitations are not made here.

[0051] Please continue to refer toFigure 1 The vertical mixer comprises two side columns 13, a material container 8, an eccentric stirring shaft 9, a protective cover 10, an operation panel 11, a counterweight base 12, the column 13 is installed on the counterweight base 12, the vertical mixer can be controlled by operating the operation panel 11, the material container 8 will be lifted to the position where the eccentric stirring shaft 9 is located during operation, the eccentric stirring shaft 9 rotates along the wall of the material container 8 to stir, and the material container 8 will be automatically lowered to the bottom position after the stirring time ends. The mixer is a mature technology and product, and the component characteristics and functions will not be described here.

[0052] The implementation process of the asphalt weighing equipment is as follows: the electronic scale is peeled to subtract the weight of the sample container 3; the melted asphalt is taken out from the oven and poured into the anti-sticking sample container 3, the sample container 3 is placed on the electronic scale as required, the weighing platform 1 is moved into the asphalt mixer by the moving mechanism 5, the sample container 3 is located at the top of the material container 8, the outlet of the discharging valve 4 is aligned with the material container 8, then the discharging valve 4 is opened to discharge, the addition amount of the asphalt is read through the display screen 21 of the electronic scale 2, and the discharging valve 4 is closed when the addition amount of the asphalt reaches the target value.

[0053] For example, the moving mechanism 5 comprises a first hinge 51, which can be a heavy-duty hinge with constant torque. The fixed part of the first hinge 51 is connected with the column 13 of the asphalt mixer, and the first hinge 51 can be fixedly installed on the column 13 through bolts. The rotating shaft of the first hinge 51 is connected with the weighing platform 1, and the first hinge 51 can make the weighing platform 1 rotate by an angle greater than 120°, so as to realize the rotation of the weighing platform 1 from the outside of the asphalt mixer to the inside of the asphalt mixer. While ensuring the bearing capacity, the first hinge 51 makes the weighing platform 1 hover at the specified position. When the mixture is prepared, the moving mechanism 5 can make the weighing platform 1 rotate out of the range of the eccentric stirring shaft 9 and the material container 8, so as to ensure safety; when the asphalt is added, the weighing platform 1 can be rotated above the material container 8, so as to ensure that the asphalt flows into the material container 8 in the shortest distance and reduces the heat loss of the asphalt.

[0054] In actual application, the load borne by a single hinge is limited, which may cause insufficient service life of the moving mechanism. Based on this, in a specific embodiment, the moving mechanism 5 further comprises a second hinge 52 and a diagonal brace 53.

[0055] The fixed part of the second hinge 52 is connected with the column 13 and is spaced apart from the first hinge 51 in the vertical direction by a preset distance; one end of the diagonal brace 53 is connected with the rotating shaft of the second hinge 52, and the other end is connected with the weighing platform 1. Please refer to Figure 3 , Figure 3The structure diagram of the moving mechanism 5 is shown. The interval of the first hinge 51 and the second hinge 52 in the vertical direction can be set to 100-150 mm, and both are fixedly installed on the column 13 by bolts to ensure that the bottom surface of the weighing platform 1 is 5-10 mm higher than the top surface of the sample bucket 8. The diagonal brace 53 forms a triangular support structure, which can effectively improve the bearing load of the moving mechanism 5.

[0056] During the asphalt weighing and adding process, the sample bucket 3 may be displaced due to various external factors (such as vibration when the moving mechanism 5 is running, accidental touching by humans, etc.), which will cause the sample bucket 3 to not accurately be at the center of the weighing of the electronic scale 2, thereby affecting the accuracy of the asphalt weight measurement by the electronic scale 2, and may also cause the sample bucket 3 to collide with surrounding equipment when discharging, causing asphalt to splash and other safety accidents. Based on this, in a specific embodiment, the asphalt weighing device further comprises a limiting mechanism 6.

[0057] The limiting mechanism 6 is connected with the weighing platform 1, and the limiting mechanism 6 is used for limiting the moving position of the sample bucket 3. The limiting mechanism 6 can limit the sample bucket 3 from different directions. For example, several height-adjustable baffles can be provided around the weighing platform 1. The baffles are made of high-temperature-resistant materials and will not scratch the sample bucket 3, and can effectively block the excessive movement of the sample bucket 3 when it is subjected to external forces; or a limiting structure with a clamping groove is designed to ensure that the sample bucket 3 is always in the predetermined ideal position, ensuring the smooth progress of the entire weighing and adding process.

[0058] For example, please refer to Figure 4 , Figure 4 The structure diagram of the limiting mechanism 6 is shown. In a specific embodiment, the limiting mechanism 6 comprises a fixed rod 61 and a limiting ring 62.

[0059] The fixed rod 61 can be made of metal material, and the fixed rod 61 is vertically installed on the weighing platform 1. The fixed rod 61 can be a metal rod with a diameter of about 10-20 mm and a length of 250-300 mm; the limiting ring 62 is connected with the fixed rod 61, and the limiting ring 62 is sleeved on the sample bucket 3. The inner diameter of the limiting ring 62 is greater than the outer diameter of the sample bucket 3, which can be 10-20 mm larger than the diameter of the sample bucket 3, which can ensure that the sample bucket 3 is freely placed within a certain range, and can effectively limit the horizontal displacement of the sample bucket 3 when subjected to external forces.

[0060] Further, the limiting ring 62 comprises a first arc-shaped part 621 and a second arc-shaped part 622, one end of the first arc-shaped part 621 is connected with the fixed rod 61, and the other end is provided with a first fixing part which is curved outward; one end of the second arc-shaped part 622 is connected with the fixed rod 61, and the other end is provided with a second fixing part which is curved outward. The first arc-shaped part 621 and the second arc-shaped part 622 can form a hoop structure, a through hole can be formed on the first fixing part and the second fixing part, and the first arc-shaped part 621 and the second arc-shaped part 622 are connected through the fastener passing through the through hole. It can be understood that the limiting ring 62 adopts the structure composed of the first arc-shaped part 621 and the second arc-shaped part 622, so that the sample bucket 3 can be placed on the electronic scale 2 first, and then the first fixing part and the second fixing part are fixedly connected, and the convenience of the limiting operation can be improved.

[0061] It should be noted that the first fixing part and the second fixing part can also be connected through a snap ring switch, and the snap ring switch is a ring-shaped structure of an elastic buckle. When the first arc-shaped part 621 and the second arc-shaped part 622 are folded around the sample bucket 3, the snap ring switch is sleeved on the coincident end portions of the first arc-shaped part 621 and the second arc-shaped part 622, and the elastic buckle on the inner side of the snap ring switch is automatically clamped into the clamping groove designed in advance in the first fixing part and the second fixing part, so that the connection is rapid and stable. This connection mode does not require additional tools, and an operator can complete the operation manually, which is suitable for complex environmental conditions of asphalt weighing site. At the same time, in order to prevent the snap ring switch from being accidentally loosened, a simple safety device such as a small rotary lock can be designed at the buckle of the snap ring switch. After the snap ring switch is closed, the lock is rotated to the locking position, further enhancing the safety of the connection.

[0062] Further, please refer to Figure 5 , the outer periphery of the sample bucket 3 is provided with a pair of ears 7 which are symmetrically arranged along the axis, and the pair of ears 7 can be installed at a position 30-50 mm below the bucket opening of the sample bucket 3. The shape of the ear 7 can be a semicircular or U-shaped structure, and the material is selected from metal materials such as aluminum alloy, so as to ensure that the ear 7 will not be deformed and damaged in a high-temperature environment. The connection mode of the ear 7 and the sample bucket 3 adopts welding, so as to ensure the connection strength, so that the ear 7 can withstand a certain weight of asphalt and the tension in the handling process. The inner diameter of the ear 7 is designed to ensure that the operator can conveniently insert fingers or use tools to perform lifting operation. When it is necessary to move the sample bucket 3 for cleaning, replacement or temporary adjustment of position, the operator can hold the ear 7 with both hands, and stably lift or move the sample bucket 3, so that the operation is more labor-saving and convenient. Moreover, the symmetrically arranged ears 7 can ensure that the sample bucket 3 remains balanced during the force lifting process, so as to avoid spilling of asphalt.

[0063] The technical scheme provided in the embodiment of the utility model has at least the following technical effects or advantages:

[0064] 1. The asphalt weighing device comprises a weighing platform, an electronic scale, a sample bucket, a discharge valve and a moving mechanism, the electronic scale is arranged on the weighing platform and is used for weighing asphalt to be added to an asphalt mixer; the sample bucket is arranged on the electronic scale and is used for containing asphalt, and the discharge valve is installed on the sample bucket; the moving mechanism is connected with the weighing platform and the asphalt mixer, and when the asphalt mixer needs to add asphalt, the moving mechanism is used to move the weighing platform from outside the asphalt mixer to inside the asphalt mixer, and the discharge valve is opened to add the contained asphalt in the sample bucket to the asphalt mixer. When the asphalt mixer adds asphalt through the asphalt weighing device, the amount of added asphalt can be directly read based on the value displayed by the electronic scale, the accuracy of quantity control by the "scooping method" is greatly improved, and the whole process of adding asphalt does not need to hold the sample bucket, thereby avoiding high-temperature scalding of the operator, and the accuracy and safety of asphalt addition in the asphalt mixture mixing process are improved.

[0065] 2. The asphalt weighing device simplifies the test process of asphalt mixture mixing, the process of adding asphalt is simple, time-saving, and does not cause environmental pollution and contamination of other equipment; meanwhile, consumables can be saved, the sample bucket surface is subjected to anti-sticking spraying treatment, and after use, the sample bucket does not need to be cleaned and can be directly reused after the residual asphalt is removed.

[0066] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Under", "below" and "lower" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0067] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0068] In the present application, unless specifically stated and limited otherwise, the terms "connected", "fixed", and the like should be interpreted broadly, for example, "fixed" can be fixed connection, or detachable connection, or integral; "connected" can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0069] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

Claims

1. An asphalt weighing device for asphalt mixture preparation, characterized in that, The device includes: Weighing platform; An electronic scale is installed on the weighing platform and is used to weigh the asphalt to be added to the asphalt mixer. A sample container is mounted on the electronic scale and is used to hold the asphalt. A discharge valve is installed on the sample container; The moving mechanism is connected to both the weighing platform and the asphalt mixer. The moving mechanism is used to move the weighing platform from the outside of the asphalt mixer to the inside of it, so as to open the discharge valve and allow the sample container to add the asphalt it contains to the asphalt mixer.

2. The asphalt weighing equipment for asphalt mixture preparation according to claim 1, characterized in that, The device also includes: A limiting mechanism is connected to the weighing platform, and the limiting mechanism is used to limit the movement position of the sample container.

3. The asphalt weighing equipment for asphalt mixture preparation according to claim 2, characterized in that, The limiting mechanism includes: A fixed rod is vertically installed on the weighing platform; A limiting ring is connected to the fixing rod, and the limiting ring is fitted onto the sample container.

4. The asphalt weighing equipment for asphalt mixture preparation according to claim 3, characterized in that, The limiting ring includes: The first arc-shaped component has one end connected to the fixed rod and the other end provided with a first fixing part that curves outward; The second arc-shaped component has one end connected to the fixed rod and the other end provided with a second fixing part that curves outward.

5. The asphalt weighing equipment for asphalt mixture preparation according to claim 4, characterized in that, The limiting mechanism further includes: A retaining ring switch is installed on the first fixing part and the second fixing part.

6. The asphalt weighing equipment for asphalt mixture preparation according to claim 1, characterized in that, The mobile mechanism includes: The first hinge member has a fixed part connected to the column of the asphalt mixer, and its rotating shaft is connected to the weighing platform.

7. The asphalt weighing equipment for asphalt mixture preparation according to claim 6, characterized in that, The moving mechanism also includes: The second hinge member has a fixed part that is connected to the column and is spaced at a predetermined distance from the first hinge member in the vertical direction. The diagonal brace is connected at one end to the pivot of the second hinge and at the other end to the weighing platform.

8. The asphalt weighing equipment for asphalt mixture preparation according to claim 1, characterized in that, The inner surface of the sample container is provided with an anti-stick layer.

9. The asphalt weighing equipment for asphalt mixture preparation according to claim 1, characterized in that, The discharge valve is a ball valve with an inner diameter greater than 10mm.

10. The asphalt weighing equipment for asphalt mixture preparation according to claim 1, characterized in that, The sample container is provided with a pair of handles symmetrically arranged along its central axis on its outer periphery.

Images