CN218995046U

CN218995046U - Asphalt mixture density detection device

Info

Publication number: CN218995046U
Application number: CN202223203589.4U
Authority: CN
Inventors: 吴志生; 饶丽霞; 杨锋
Original assignee: Hangzhou Tongzheng Construction Engineering Testing Co ltd
Current assignee: Hangzhou Tongzheng Construction Engineering Testing Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-09
Anticipated expiration: 2032-11-30

Abstract

The utility model relates to a material detection field, especially an asphalt mixture density detection device, including constant temperature water bath, detection mechanism, the water storage chamber has been seted up to the constant temperature water bath incasement, detection mechanism includes the cup, and can place in the cup and be used for carrying the thing net of material, cup fixed mounting is in the water storage chamber, be equipped with on the cup lateral wall can with water in the water storage chamber is sent into the water inlet in the cup, be provided with in the cup and be used for switching water inlet open-close state's sealing member, the preliminary treatment and the detection of material all go on in the water storage chamber, do not need to shift, reduce because of the change of material temperature in the transfer process influences the testing result.

Description

Asphalt mixture density detection device

Technical Field

The application relates to the field of material detection, in particular to an asphalt mixture density detection device.

Background

The asphalt mixture is a composite material, mainly composed of asphalt, coarse aggregate, fine aggregate and mineral powder, and polymer and wood cellulose are added, and the materials with different mass and quantity are mixed to form different structures and have different mechanical properties.

The density of the asphalt mixture is an important technical index, which refers to the dry mass per unit volume of the compacted asphalt mixture under the normal temperature condition, in the prior art, in order to measure the asphalt mixture under the normal temperature condition by a water-in-water weight method or a surface drying method, the asphalt mixture is generally pretreated in a water bath through a normal temperature water bath box to reach the required measurement temperature, and the asphalt mixture is not directly immersed in water in the water bath process, so that the water absorption of the asphalt mixture is prevented from influencing the detection result. And transferring the treated asphalt mixture to measuring equipment for density detection, wherein temperature change of the asphalt mixture is easily caused in the transferring process, so that the detection result is inaccurate.

Disclosure of Invention

In order to solve the problem that the temperature change of the asphalt mixture is easy to cause in the transferring process to influence the detection result, the application provides an asphalt mixture density detection device.

The application provides an asphalt mixture density detection device's adoption following technical scheme:

the utility model provides an asphalt mixture density detection device, includes constant temperature water bath, detection mechanism, has seted up the water storage chamber in the constant temperature water bath, and detection mechanism includes the cup, and can place in the cup and be used for carrying the thing net of material, cup fixed mounting in the water storage chamber, is equipped with the water inlet that can send into the cup with the water in the water storage chamber on the cup lateral wall, is provided with the sealing member that is used for switching water inlet open-close state in the cup.

Through adopting above-mentioned technical scheme, the cup sets up in the constant temperature water bath, control the temperature of water in the constant temperature water bath at the material measuring range, hold the thing net and bear the weight of the material and place in the cup when the water bath, carry out the temperature pretreatment through water bath treatment and heat conduction to the material, make the temperature of material be close to the temperature of water, thereby reach measuring temperature's within range, open the water inlet through the sealing member after the pretreatment, make water enter into the cup and submerge the material and measure the material density through the drainage method, do not need to carry out the material transfer, convenient and fast, eliminate the influence of temperature variation in the material transfer process to the testing result, and the water level of water storage chamber is higher than the water inlet and is not higher than the cup rim of a cup, thereby guarantee to open the water in the water storage chamber can get into the cup and prevent it from getting into from the rim of a cup and pouring on the material.

It is further preferable that a water level probe for monitoring the water level in the water storage cavity is arranged in the water storage cavity, and the water level probe is higher than the water inlet and is not higher than the cup mouth of the cup.

By adopting the technical scheme, the water level probe is arranged in the water storage cavity and used for monitoring the water level in the water storage cavity so that the water level is higher than the water inlet and not higher than the cup mouth of the cup.

Further preferably, the sealing member is a cup body which is attached to the inner wall of the cup and is rotationally connected with the cup, the axis of the cup body is overlapped with the axis of the cup, the cup mouth of the cup body is upward, a through groove is formed in the side wall of the cup body, and the through groove can be communicated with the water inlet.

Through adopting above-mentioned technical scheme, the sealing member adopts with the laminating of cup inner wall and with the cup of cup rotation connection, offer on the cup can with the logical groove of water inlet intercommunication, switch the intercommunication state of logical groove and water inlet through rotatory cup to the switch of water inlet is convenient for control.

Further preferably, the top of the cup body extends out of the cup mouth of the cup and is fixedly connected with a convex strip.

Through adopting above-mentioned technical scheme, cup rim of a cup fixed connection sand grip extends at cup top, and the convenience is made things convenient for the person to hold the sand grip and is rotated the cup to the sand grip sets up in cup rim of a cup department, reducible hand contact water's condition.

It is further preferable that the inner space of the cup is in a round table shape, the diameter of the cup mouth is smaller than the diameter of the cup bottom, and the bottom of the cup is communicated.

Through adopting above-mentioned technical scheme, the cup inner space is the setting of round platform, then also is the round platform shape with the cup appearance of cup inner wall laminating, and is narrow down wide, and the cup bottom link up and set up in making things convenient for the cup to install into the cup from the cup bottom, prevents that the cup from breaking away from cup rim of a cup department and cup.

Further preferably, the side wall of the cup is provided with an overflow port capable of overflowing water in the cup to be sent out, the horizontal height of the overflow port is higher than that of the water inlet, the side wall of the cup is provided with a through hole capable of being communicated with the overflow port, and the through groove is not communicated with the water inlet when the through hole is communicated with the overflow port.

Through adopting above-mentioned technical scheme, set up the overflow mouth on the cup, overflow mouth level is higher than the water inlet and the water level of water storage intracavity is not higher than the overflow mouth, set up the through-hole on the cup and can communicate with the overflow mouth, switch the intercommunication state of through-hole and overflow mouth through rotatory cup, reach the effect of control overflow mouth switch.

Further preferably, the bottom of the water storage cavity is fixedly provided with a base, the bottom of the cup is fixedly connected with a first supporting table, and the first supporting table is detachably connected with the base.

Through adopting above-mentioned technical scheme, cup bottom sets up first brace table, and first brace table can dismantle with the base and be connected, conveniently carries out the dismouting with detection mechanism from the water storage intracavity.

Further preferably, the first support table is provided with a groove, and the bottom of the cup is connected with the groove.

Through adopting above-mentioned technical scheme, set up the recess on the first brace table and be used for connecting the cup bottom, can be with cup direct card in the recess with first brace table is connected, convenient and fast.

Further preferably, the detection mechanism further comprises a second supporting table and a weighing mechanism which is arranged on the second supporting table and used for weighing materials in the object carrying net, and a supporting rod is connected between the second supporting table and the first supporting table and is higher than the cup.

Through adopting above-mentioned technical scheme, set up the second brace table and be used for installing weighing machine and construct, connect the bracing piece between second brace table and first brace table, the bracing piece highly is higher than the cup, makes second brace table and weighing machine construct and is located above the water level.

It is further preferable that the support rod is a telescopic rod that can adjust a distance between the first support table and the second support table.

Through adopting above-mentioned technical scheme, the bracing piece is the telescopic link, can adjust the interval between first brace table and the second brace table, increases the interval between first brace table and the second brace table when the bracing piece extends to drive weighing machine and construct and rise, and drive the thing that holds to rise on the net and remove from the cup, conveniently get, the blowing.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the application, pretreatment and detection of materials are carried out in the water storage cavity, transfer is not needed, and the influence of the change of the temperature of the materials in the transfer process on the detection result is reduced;

2. in the further arrangement of the application, the cup is provided with the water inlet and the overflow port, the cup body is arranged in the cup, the through groove and the through hole are respectively arranged on the cup body and can be communicated with the water inlet and the overflow port, and the on-off state of the water inlet and the overflow port is switched by rotating the cup body, so that the working modes of pretreatment and detection are switched;

3. in this application further sets up, set up telescopic bracing piece between first brace table and the second brace table, can adjust the interval between first brace table and the second brace table, make things convenient for artificial getting, the blowing.

Drawings

FIG. 1 is a schematic perspective view of an asphalt mixture density detection apparatus;

FIG. 2 is a sectional view showing a three-dimensional structure of an asphalt mixture density detecting apparatus;

FIG. 3 is a schematic perspective view of a detection mechanism;

FIG. 4 is a schematic top view of FIG. 1;

FIG. 5 is a schematic cross-sectional view of A-A of FIG. 4;

fig. 6 is a right side schematic view of the base.

Reference numerals illustrate: 1. a constant temperature water bath box; 2. a detection mechanism; 211. a weighing scale; 212. a boom; 213. a carrier net; 214. a hook; 221. a second support table; 222. a support rod; 223. a connecting strip; 224. a base; 225. an inverted T-shaped groove; 226. a first support table; 227. a groove; 228. an inverted T-shaped block; 231. a cup; 232. an overflow port; 233. a convex strip; 234. a water inlet; 235. a cup body; 238. a through hole; 239. a through groove; 3. a water storage chamber; 4. a case cover; 5. a water level probe.

Detailed Description

The present application is described in further detail below in conjunction with fig. 1-6.

The embodiment of the application discloses bituminous mixture density detection device, as shown in figure 1, figure 2, including constant temperature water bath 1, detection mechanism 2, offer water storage chamber 3 in the constant temperature water bath 1, detection mechanism 2 sets up in water storage chamber 3, and constant temperature water bath 1 control temperature is in the temperature range that awaits measuring, and carry out water bath treatment to the detection mechanism 2 in water storage chamber 3 and the material that awaits measuring on detection mechanism 2, make the temperature of the material that awaits measuring be close to the temperature and reach the temperature range that awaits measuring in, generally await measuring temperature range is 24.5 ℃ to 25.5 ℃. After water bath treatment, the detection mechanism 2 detects the density of the material to be detected in the water storage cavity 3, the material to be detected does not need to be taken out of the constant-temperature water bath box 1, the time interval between water bath treatment and detection is reduced, the temperature change of the material to be detected is reduced, and the accuracy of the detection result is improved.

The constant-temperature water bath box 1 is further provided with the box cover 4, the box cover 4 covers the water storage cavity 3 during water bath treatment, heat loss in the water storage cavity 3 during water bath treatment is reduced, water bath efficiency can be improved, the box cover 4 can be opened during detection, and manual operation is facilitated.

Specifically, as shown in fig. 3, the detecting mechanism 2 includes a cup 231, a carrying net 213 that can be placed in the cup 231 and is used for carrying materials, a weighing mechanism for weighing the materials in the carrying net 213, a first supporting table 226 on which the cup 231 is placed, and a second supporting table 221 on which the weighing mechanism is placed. The second supporting table 221 is positioned above the cup 231, the weighing mechanism is arranged on the second supporting table 221, the cup mouth of the cup 231 is upward, the object-bearing net 213 is positioned in the cup 231 and hung at the lower end of the weighing mechanism, and the bottom of the cup 231 is fixedly connected with the first supporting table 226; the supporting rod 222 is connected between the second supporting table 221 and the first supporting table 226, in this embodiment, the supporting rod 222 may be a telescopic rod, and the distance between the first supporting table 226 and the second supporting table 221 may be adjusted, and the second supporting table 221 is driven to move up and down by the extension of the supporting rod 222, so as to drive the weighing mechanism to move up and down, thereby driving the carrying net 213 and the material to move up and down and enter and exit the cup 231, so as to facilitate the manual taking and placing, and the height of the supporting rod 222 is higher than that of the cup 231, so that interference between the second supporting table 221, the weighing mechanism and the cup 231 is avoided.

In this embodiment, four support rods 222 are provided, in order to reduce the influence on the manual feeding and discharging operation in the carrying net 213, four connecting strips 223 radially arranged along the cup 231 are provided on the first support table 226 and the second support table 221, the upper and lower ends of the support rods 222 are connected to the connecting strips 223, and the support rods 222 are located at one end of the connecting strips 223 far away from the cup 231.

Specifically, the cup 231 is fixedly installed in the water storage cavity 3, the water level in the water storage cavity 3 is not higher than the cup mouth of the cup 231, a water inlet 234 which can convey water in the water storage cavity 3 into the cup 231 is formed in the side wall of the cup 231, the water level in the water storage cavity 3 is higher than the water inlet 234, as shown in fig. 4, a water level probe 5 which monitors the water level in the water storage cavity 3 is arranged in the water storage cavity 3, the water level of the water level probe 5 is higher than the water inlet 234 and not higher than the cup mouth of the cup 231, so that water in the water storage cavity 3 can enter the cup 231 through the water inlet 234 to soak materials, and water is prevented from entering the cup mouth to be sprayed on the materials. The water level probe 5 can only play a prompting role, the water level in the water storage cavity 3 is adjusted manually, and in other embodiments, a water inlet and drainage system can be arranged in the constant-temperature water bath tank 1, and the water level is adjusted by electrically connecting the water level probe 5 with the water inlet and drainage system.

As shown in fig. 5, a sealing member is disposed in the cup 231, the sealing member is used for switching the open/close state of the water inlet 234, and the sealing member can be a valve, but the water inlet 234 is in water, and the electric valve is adopted to prevent potential leakage, while the mechanical valve is not convenient for manual operation. In this embodiment, the sealing member is a cup 235 attached to the inner wall of the cup 231 and rotationally connected to the cup 231, the axis of the cup 235 coincides with the axis of the cup 231, the mouths of the cup 235 and the cup 231 are all arranged upwards, a through groove 239 is formed in the side wall of the cup 235, the through groove 239 can be communicated with the water inlet 234, and the top of the cup 235 extends out of the mouth of the cup 231 and is fixedly connected with a convex strip 233. By manually holding the protruding strips 233 and rotating the cup 235 around the axis of the cup 231, the communication state between the through groove 239 and the water inlet 234 is switched, and the effect of switching on and off is achieved.

The cup 231 inner space is round platform type and rim of a cup department diameter is less than the diameter of bottom of cup, and the cup 231 bottom link up the setting, because cup 235 laminating cup 231 inner wall, consequently cup 235 forms outside also is round platform type, and cup 231 inner space and cup 235 are narrow down wide, and consequently cup 231 bottom link up the setting, cup 235 need be before cup 231 is connected with first brace table 226 with cup 231 when cup 235, wears to establish its inside and laminating with its inner wall from cup 231 bottom. In this embodiment, the circular truncated cone-shaped arrangement can prevent the cup 235 from separating from the cup opening of the cup 231, and in addition, in order to prevent the cup 235 from sliding downward relative to the cup 231, the protruding strip 233 is lapped at the cup opening of the cup 231, and at this time, the diameter of the outer edge of the protruding strip 233 is larger than the diameter of the cup opening of the cup 231, so that the protruding strip 233 cannot pass through the cup opening along with the cup 235 from the bottom of the cup 231, and therefore, the protruding strip 233 and the top of the cup 235 can be fixed by means of bolts, magnetic attraction and the like.

Be equipped with the overflow mouth 232 that can send out the water overflow in the cup 231 on the cup 231 lateral wall, the level of overflow mouth 232 is higher than water inlet 234 and the water level in the water storage chamber 3 is not higher than overflow mouth 232, be equipped with on the cup 235 lateral wall can with overflow mouth 232 intercommunication's through-hole 238, through-hole 238 is not linked together with water inlet 234 with the overflow mouth 232 intercommunication time slot 239, switch the intercommunication state of through-hole 238 and overflow mouth 232 through rotatory cup 235, in the material submergence aquatic and with partial water discharge to water storage chamber 3 through-hole 238 and overflow mouth 232 when detecting, reach the effect of overflow. In other embodiments, the mouth of the cup 231 may be used as the overflow 232, but water may overflow the top of the cup 235, thereby affecting manual rotation of the cup 235.

In order to eliminate the influence of the buoyancy of the water in the water storage cavity 3 on the gravity detection of the material to be detected by the cup 231, the bottom of the water storage cavity 3 is fixedly provided with a base 224, the bottom of the first supporting table 226 is detachably connected with the base 224, in this embodiment, the bases 224 are provided with two inverted-T-shaped grooves 225, as shown in fig. 6, are formed in the right end parts of the two bases 224, two inverted-T-shaped grooves 225 are formed in each base 224, inverted-T-shaped blocks 228 matched with the inverted-T-shaped grooves 225 are arranged at the bottoms of four connecting strips 223 on the first supporting table 226, and the inverted-T-shaped blocks 228 can be integrally formed with the connecting strips 223 and the first supporting table 226. When the anti-rust support is installed, the first support table 226 and the support bar are propped against the base 224 and slide from right to left, so that the inverted T-shaped block 228 is driven to slide into the inverted T-shaped groove 225 and be connected with the base 224, the first support table 226 is limited to be separated from the base 224 upwards, the buoyancy influence of water on the cup 231 on the first support table 226 is eliminated, and in addition, the anti-rust layer can be arranged on the surfaces of the base 224, the first support table 226, the inverted T-shaped groove 225 and the inverted T-shaped block 228 as the base 224 and the first support table 226 are in water.

In other embodiments, the bottom of the first support stand 226 and the base 224 may be detachably fixed by bolts or the like, so as to limit the movement between the first support stand 226 and the base 224 in the up-down direction.

In addition, the cup 231 in this embodiment adopts a commonly used glass 231, the first support stand 226 is provided with a groove 227, the bottom of the cup 231 can be directly clamped into the groove 227 and connected with the first support stand 226, the cup 231 and the first support stand 226 can be detached and separated, and in addition, the glass 231 is transparent and is convenient for observing the material detection condition in the cup 231. In other embodiments, the cup 231 made of other materials, such as a stainless steel cup 231, may be threaded at the bottom of the stainless steel cup 231, and correspondingly, threads matching with the threads at the bottom of the cup 231 are machined on the sidewall of the groove 227, so that the cup 231 can be in threaded connection with the groove 227, and the anti-falling effect of the cup 231 and the first support stand 226 is improved; the bottom of the cup 231 can be fixed on the first support stand 226 by welding, and the mounting position of the cup 231 on the first support stand 226 can be selected according to the use requirement without being limited by the groove 227.

For the weighing mechanism, the weighing mechanism comprises a weighing scale 211 arranged on a second supporting table 221, the bottom end of the weighing scale 211 is connected with a hanging rod 212, a hanger 214 is connected to a carrying net 213, and the hanger 214 is hung on the hanging rod 212. Before the material is placed in the material carrying net 213, the material carrying net 213 is hung on the hanging rod 212 for weighing and peeling, so that the influence of the weight of the material carrying net 213 on the weighing of the material is eliminated.

The implementation steps of the asphalt mixture density detection device in the embodiment of the application are as follows:

mounting equipment: firstly, a cup 235 is inserted into the cup 231 from the bottom of the cup 231 and is adhered to the inner wall of the cup 231, and a convex strip 233 is fixed to the top of the cup 235 to complete the installation of the cup 231; secondly, the bottom of the cup 231 is clamped into the groove 227 and is connected with the first supporting table 226, the first supporting table 226 is connected with the inverted T-shaped groove 225 on the base 224 through four connecting strips 223 and an inverted T-shaped block 228, and the supporting rods 222 are arranged on the four connecting strips 223; thirdly, mounting the weighing scale 211 on a second supporting table 221, hanging a carrying net 213 on a hanger rod 212 through a hook 214, peeling and weighing the carrying net 213, and zeroing the weighing scale 211; finally, the supporting rods 222 are adjusted, the top of the supporting rods 222 is higher than the cup opening of the cup 231, the object-bearing net 213 is placed in the cup 231, four connecting strips 223 on the second supporting table 221 are correspondingly arranged on the tops of the four supporting rods 222 respectively, equipment is installed, when the equipment is installed initially, the water inlet 234 is not communicated with the through groove 239, and the overflow port 232 is not communicated with the through hole 238.

Pretreatment: firstly, the supporting rod 222 is extended, the weighing mechanism and the object carrying net 213 are moved upwards, the object to be measured is placed in the object carrying net 213 manually, the supporting rod 222 is contracted, the object carrying net 213 is placed in the cup 231 again, and the mass of the object in the air is weighed at the moment; secondly, adding water into the water storage cavity 3 until the water level reaches the position of the water level probe 5, and closing the water inlet 234 at the moment, wherein the water in the water storage cavity 3 cannot enter the cup 231 to submerge materials; thirdly, closing the box cover 4, and starting the constant-temperature water bath box 1 to perform water bath treatment until the temperature of the materials reaches the detection temperature range; finally, the constant-temperature water bath box 1 is closed, and the box cover 4 is opened to start detection.

And (3) detection: firstly, the supporting rod 222 is extended and the object supporting net 213 is moved upwards, so that materials are moved from the cup 231, the cup 235 is rotated to open the water inlet 234 until the water level in the cup 235 is the same as the water level in the water storage cavity 3, and the cup 235 is rotated to close the water inlet 234 and open the overflow port 232; secondly, manually adding water in the water storage cavity 3 into the cup 231 until water flows out from the overflow port 232, and stopping adding water at the moment until no water flows out from the overflow port 232; thirdly, the support rod 222 is contracted and the material is immersed into the water in the cup 231, and overflowed water flows into the water storage cavity 3 through the overflow port 232; and finally, weighing the mass of the immersed material in water, and calculating the density of the material according to the mass of the weighed material in air and the mass data of the weighed material in water.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides an asphalt mixture density detection device, includes thermostat bath (1), detection mechanism (2), offer water storage chamber (3) in thermostat bath (1), detection mechanism (2) are including cup (231), and can place in cup (231) and be used for carrying material hold thing net (213), its characterized in that, cup (231) fixed mounting is in water storage chamber (3), be equipped with on cup (231) lateral wall can with water in water storage chamber (3) is sent into water inlet (234) in cup (231), be provided with in cup (231) and be used for switching water inlet (234) open-close state's sealing member.

2. The asphalt mixture density detection device according to claim 1, wherein a water level probe (5) for monitoring the water level in the water storage cavity (3) is arranged in the water storage cavity (3), and the water level probe (5) is higher than the water inlet (234) and not higher than the cup mouth of the cup (231).

3. The asphalt mixture density detection device according to claim 1 or 2, wherein the sealing member is a cup body (235) attached to the inner wall of the cup (231) and rotationally connected with the cup (231), the axis of the cup body (235) is overlapped with the axis of the cup (231) and the cup mouth of the cup body is upward, a through groove (239) is formed in the side wall of the cup body (235), and the through groove (239) can be communicated with the water inlet (234).

4. A device for detecting the density of asphalt mixture according to claim 3, wherein the top of the cup body (235) extends out of the mouth of the cup (231) and is fixedly connected with a convex strip (233).

5. The asphalt mixture density detection apparatus according to claim 4, wherein an inner space of said cup (231) is in a shape of a circular truncated cone, a diameter of a cup mouth is smaller than a diameter of a cup bottom, and a bottom of said cup (231) is arranged in a through manner.

6. A device for detecting the density of asphalt mixture according to claim 3, wherein an overflow port (232) capable of overflowing water in the cup (231) is arranged on the side wall of the cup (231), the level of the overflow port (232) is higher than that of the water inlet (234), a through hole (238) capable of being communicated with the overflow port (232) is arranged on the side wall of the cup (235), and the through groove (239) is not communicated with the water inlet (234) when the through hole (238) is communicated with the overflow port (232).

7. The asphalt mixture density detection device according to claim 1, wherein a base (224) is fixedly arranged at the bottom of the water storage cavity (3), a first supporting table (226) is fixedly connected to the bottom of the cup (231), and the first supporting table (226) is detachably connected with the base (224).

8. The asphalt mixture density detection apparatus according to claim 7, wherein a groove (227) is formed in said first support base (226), and the bottom of said cup (231) is connected to said groove (227).

9. The asphalt mixture density detection apparatus according to claim 7 or 8, wherein the detection mechanism (2) further comprises a second support table (221), and a weighing mechanism mounted on the second support table (221) for weighing materials in the material-holding net (213), a support bar (222) is connected between the second support table (221) and the first support table (226), and the support bar (222) is higher than the cup (231).

10. The asphalt mixture density detection apparatus according to claim 9, wherein said support bar (222) is a telescopic bar that can adjust a distance between said first support table (226) and said second support table (221).