Asphalt mixture density test wax removal tool

Abstract

The utility model discloses a paraffin removal tool for asphalt mixture density test, which relates to the technical field of building materials and comprises a rotating mechanism and a plurality of groups of spraying mechanisms, the rotating mechanism comprises a rotating rod, a supporting mechanism is arranged below the rotating rod, a clamping mechanism is arranged on the outer wall of the rotating rod, and a heating mechanism is arranged on one side of each spraying mechanism. The spraying mechanism is arranged above the clamping mechanism and comprises a spraying head. According to the device, the asphalt mixture test block rotates, hot water is sprayed to the surface of the rotating asphalt mixture test block through the spraying mechanism, wax on the surface of the asphalt mixture test block is heated and melted, meanwhile, along with water flow, spraying is stopped after the wax is melted completely, and then the surface of the asphalt mixture test block is subjected to air sweeping through the air drying mechanism; in the whole process, a tester does not need to spend a lot of time to manually remove the wax removal sealing layer, so that the workload of the tester is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building materials, and particularly relates to a wax removing tool for asphalt mixture density test. Background Technique

[0002] At present, in the asphalt mixture density test, when measuring the mixture with a water absorption rate greater than 2%, the wax sealing method is usually adopted. If other tests need to be carried out on the specimen after measuring the density, in order to facilitate the removal of paraffin, the current method is to apply a thin layer of talcum powder on the surface of the dry specimen in advance. After measuring the density, the paraffin needs to be removed and then other subsequent tests are carried out.

[0003] The above method cannot ensure that the wax removal is thorough every time. Some residual talcum powder combines with the specimen and cannot be removed, resulting in a larger error in other subsequent test items, and it is impossible to accurately evaluate the technical indicators of the product. Moreover, the wax removal process takes a lot of time for the test personnel and the workload is large. Therefore, we propose a wax removing tool for asphalt mixture density test. Content of the Utility Model

[0004] The purpose of the utility model is to provide a wax removing tool for asphalt mixture density test to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A wax removing tool for asphalt mixture density test, comprising:

[0006] A rotating mechanism, the rotating mechanism includes a rotating rod rotatably arranged, a supporting mechanism is arranged below the rotating rod, and a plurality of clamping mechanisms for fixing asphalt mixture specimens are arranged on the outer wall of the rotating rod;

[0007] A plurality of spraying mechanisms, a heating mechanism is arranged on one side of the spraying mechanism, the spraying mechanism is arranged above the clamping mechanism, and the spraying mechanism includes a spray head for spraying hot water discharged from the heating mechanism onto the asphalt mixture specimen.

[0008] Preferably, the heating mechanism includes a self-heating constant temperature water tank, an output end of the self-heating constant temperature water tank is provided with a first connecting pipe, one end of the first connecting pipe is provided with a second connecting pipe, a plurality of third connecting pipes are arranged on the outer wall of the second connecting pipe, the plurality of third connecting pipes are respectively connected with a plurality of spray heads, and first valves are installed in the middle of the plurality of third connecting pipes.

[0009] Preferably, the supporting mechanism includes a supporting seat, a plurality of fixing plates are fixedly connected to the top end of the supporting seat, the rotating rod is rotatably arranged between the plurality of fixing plates, a variable frequency DC motor is arranged above the supporting seat, and an output end of the variable frequency DC motor is in transmission connection with one end of the rotating rod.

[0010] Preferably, the clamping mechanism includes an inverted U-shaped frame. An adjusting mechanism is provided between the inverted U-shaped frame and the rotating rod. A first threaded hole is formed in the outer wall of the inverted U-shaped frame, and a first locking bolt is threadedly connected to the inner wall of the first threaded hole. A drying mechanism is provided below the inverted U-shaped frame.

[0011] Preferably, the adjusting mechanism includes a fixed tube fixedly connected to the outer wall of the rotating rod. A movable rod is fixedly connected to the top end of the inverted U-shaped frame. The outer wall of the movable rod is slidably connected to the inner wall of the fixed tube. A second threaded hole is formed in the outer wall of the fixed tube, and a second locking bolt is threadedly connected to the inner wall of the second threaded hole.

[0012] Preferably, the drying mechanism includes an air compressor. A fourth connecting pipe is provided at the output end of the air compressor. A plurality of fifth connecting pipes are provided on the outer wall of the fourth connecting pipe, and a second valve is provided in the middle of each of the plurality of fifth connecting pipes.

[0013] The technical effects and advantages of the present utility model:

[0014] The present utility model can fix the asphalt mixture test block by using the clamping mechanism, then rotate the fixed asphalt mixture test block by rotating the rotating rod, and then spray hot water on the surface of the rotating asphalt concrete test block through the spraying mechanism, so that the wax on the surface of the asphalt mixture test block is heated and melted, and at the same time flows down with the water. After complete melting, stop spraying, and then use the drying mechanism to sweep the surface of the asphalt mixture test block until the water on the asphalt mixture test block completely volatilizes, that is, the wax removal is completed. The whole process does not require the tester to spend a lot of time manually removing the wax sealing layer, effectively shortening the workload of the tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front structural schematic diagram of the present utility model.

[0016] Figure 2 is a front sectional structural schematic diagram of the inverted U-shaped frame of the present utility model.

[0017] In the figure: 101, rotating rod; 201, spray head; 301, self-heating constant temperature water tank; 302, first connecting pipe; 303, second connecting pipe; 304, third connecting pipe; 305, first valve; 401, support seat; 402, fixing plate; 501, inverted U-shaped frame; 502, first threaded hole; 503, first locking bolt; 601, fixed tube; 602, movable rod; 603, second threaded hole; 604, second locking bolt; 701, variable frequency DC motor; 801, air compressor; 802, fourth connecting pipe; 803, fifth connecting pipe; 804, second valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] The present utility model provides a Figure 1-2 wax-removing tool for asphalt mixture density test as shown, which includes a rotating mechanism and a spraying mechanism. The rotating mechanism includes a rotating rod 101 rotatably arranged. A supporting mechanism is arranged below the rotating rod 101. A plurality of clamping mechanisms for fixing asphalt mixture test blocks are arranged on the outer wall of the rotating rod 101. The asphalt mixture test blocks can be fixed through the clamping mechanisms, and then the fixed asphalt mixture test blocks are rotated by rotating the rotating rod 101. Then, hot water is sprayed onto the surface of the rotating asphalt concrete test blocks through the spraying mechanism, so that the wax on the surface of the asphalt mixture test blocks is heated and melted and flows down along with the water. After complete melting, the spraying is stopped;

[0020] Among them, the supporting mechanism includes a supporting seat 401. A plurality of fixing plates 402 are fixedly connected to the top end of the supporting seat 401. The rotating rod 101 is rotatably arranged between the plurality of fixing plates 402. A variable-frequency DC motor 701 is arranged above the supporting seat 401. The output end of the variable-frequency DC motor 701 is in transmission connection with one end of the rotating rod 101. Through the cooperation of the supporting seat 401 and the two fixing plates 402, the entire wax-removing tool can be stably used.

[0021] In a preferred embodiment, a heating mechanism is arranged on one side of the spraying mechanism. The spraying mechanism is arranged above the clamping mechanism. The spraying mechanism includes a spray head 201 for spraying the hot water discharged from the heating mechanism onto the asphalt mixture test blocks. When the rotating rod 101 drives the asphalt concrete test blocks fixed by the clamping mechanism to rotate, the spray head 201 sprays the hot water discharged from the heating mechanism onto the surface of the asphalt mixture test blocks to melt the wax. After melting is completed, an air-drying mechanism is used to sweep the surface of the asphalt mixture test blocks until the water on the asphalt mixture test blocks is completely volatilized, that is, the wax removal is completed. The whole process does not require the tester to spend a lot of time manually removing the wax-sealing layer, effectively shortening the workload of the tester.

[0022] Among them, the heating mechanism includes a self-heating constant temperature water tank 301. The output end of the self-heating constant temperature water tank 301 is provided with a first connecting pipe 302. One end of the first connecting pipe 302 is provided with a second connecting pipe 303. The outer wall of the second connecting pipe 303 is provided with a plurality of third connecting pipes 304. The plurality of third connecting pipes 304 are respectively connected to a plurality of spray heads 201. A first valve 305 is installed in the middle of each of the plurality of third connecting pipes 304. The hot water in the self-heating constant temperature water tank 301 sequentially passes through the first connecting pipe 302, the second connecting pipe 303, and the third connecting pipe 304, and finally sprays onto the clamped asphalt mixture test block through the spray head 201. Thus, the wax on the surface of the asphalt mixture test block can be melted by the hot water. The flow of the third connecting pipe 304 can be controlled by the first valve 305. When the first valve 305 is opened, the hot water in the third connecting pipe 304 can flow into the spray head 201. When the first valve 305 is closed, the third connecting pipe 304 and the spray head 201 are no longer connected, and the spraying mechanism stops working.

[0023] Preferably, the clamping mechanism includes an inverted U-shaped frame 501. An adjusting mechanism is provided between the inverted U-shaped frame 501 and the rotating rod 101. A first threaded hole 502 is opened on the outer wall of the inverted U-shaped frame 501. A first locking bolt 503 is threadedly connected to the inner wall of the first threaded hole 502. A drying mechanism is provided below the inverted U-shaped frame 501. The asphalt mixture test block is placed in the inverted U-shaped frame 501, and then the first locking bolt 503 is screwed in the first threaded hole 502, so as to hold the asphalt mixture test block in the inverted U-shaped frame 501, and the asphalt mixture test block can be fixed in the inverted U-shaped frame 501.

[0024] Furthermore, the adjusting mechanism includes a fixed pipe 601 fixedly connected to the outer wall of the rotating rod 101. The top end of the inverted U-shaped frame 501 is fixedly connected with a movable rod 602. The outer wall of the movable rod 602 is slidably connected to the inner wall of the fixed pipe 601. A second threaded hole 603 is opened on the outer wall of the fixed pipe 601. A second locking bolt 604 is threadedly connected to the inner wall of the second threaded hole 603. By sliding the movable rod 602 in the fixed pipe 601, the position of the inverted U-shaped frame 501 can be adjusted. After the adjustment is completed, the second locking bolt 604 is screwed in the second threaded hole 603 so that the second locking bolt 604 abuts against the movable rod 602 in the fixed pipe 601, and the movable rod 602 can be fixed in the fixed pipe 601, thereby fixing the inverted U-shaped frame 501 and enabling the clamping mechanism to be used stably.

[0025] Further, the air drying mechanism includes an air compressor 801. A fourth connecting pipe 802 is provided at the output end of the air compressor 801. A plurality of fifth connecting pipes 803 are provided on the outer wall of the fourth connecting pipe 802. Second valves 804 are provided in the middle of the plurality of fifth connecting pipes 803. By operating the air compressor 801, air can be exhausted into the fourth connecting pipe 802. The air passes through the fourth connecting pipe 802 and the fifth connecting pipes 803 in sequence, so that the air blows onto the clamped asphalt mixture test block until the moisture on the asphalt mixture test block completely volatilizes, that is, the dewaxing is completed. Among them, through the setting of the second valve 804, it is convenient to close the operation of the air drying mechanism. When the second valve 804 is opened, the air in the fifth connecting pipe 803 can stably blow onto the asphalt mixture test block. When the fifth connecting pipe 803 is closed, the fifth connecting pipe 803 is no longer connected to the outside, so that the air drying mechanism stops working. The self-heating constant temperature water tank 301, the variable frequency DC motor 701 and the air compressor 801 are respectively electrically connected to an external power supply through an external switch, which is convenient for the operator to control and improves the safety and convenience of the operation.

[0026] When the dewaxing tool of this solution is working, take a set of asphalt mixture test blocks whose density has been tested, place them in the inverted U-shaped frame 501, and tighten the first locking bolt 503. Start the variable frequency DC motor 701 to make the rotating rod 101 rotate. Then open the first valve 305 to make the third connecting pipe 304 discharge hot water into the spray head 201. The hot water is sprayed out from the spray head 201 onto the surface of the rotating asphalt mixture test block, so that the wax on its surface is heated and melted and separated from the test block surface with the water until there is no residual wax on the test block surface. Stop spraying. Then turn on the switch of the air compressor 801 and open the second valve 804 to make the fifth connecting pipe 803 blow air onto the test block surface until the surface of the asphalt mixture is dry, and the dewaxing is completed. Weigh the mass of the asphalt mixture test block. If it is the same as the mass of the test block before testing the density, it means that the dewaxing is complete. Otherwise, further dewaxing is required until it is completely removed.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wax removal tool for asphalt mixture density test, characterized in that: include: A rotating mechanism, the rotating mechanism comprising a rotating rod (101) that is rotatably arranged, a supporting mechanism being arranged below the rotating rod (101), and a plurality of clamping mechanisms for fixing asphalt mixture test blocks being arranged on an outer wall of the rotating rod (101); A plurality of spraying mechanisms are provided, one side of the spraying mechanism is provided with a heating mechanism, the spraying mechanism is arranged above the clamping mechanism, and the spraying mechanism comprises a spray head (201) for spraying hot water discharged from the heating mechanism onto the asphalt mixture test block.

2. The asphalt mixture density test wax removal tool according to claim 1, characterized in that: The heating mechanism comprises a self-heating constant temperature water tank (301), wherein a first connecting pipe (302) is arranged at the output end of the self-heating constant temperature water tank (301), a second connecting pipe (303) is arranged at one end of the first connecting pipe (302), a plurality of third connecting pipes (304) are arranged on the outer wall of the second connecting pipe (303), the plurality of third connecting pipes (304) are respectively connected to a plurality of sprinkler heads (201), and a first valve (305) is installed in the middle of the plurality of third connecting pipes (304).

3. The asphalt mixture density test wax removal tool according to claim 1, characterized in that: The support mechanism comprises a support seat (401), a top end of the support seat (401) is fixedly connected to a plurality of fixed plates (402), the rotating rod (101) is rotatably arranged between the plurality of fixed plates (402), a variable frequency DC motor (701) is arranged above the support seat (401), and an output end of the variable frequency DC motor (701) is transmission-connected to one end of the rotating rod (101).

4. The asphalt mixture density test wax removal tool according to claim 1, characterized in that: The clamping mechanism comprises an inverted U-shaped frame (501), an adjustment mechanism is arranged between the inverted U-shaped frame (501) and the rotating rod (101), a first threaded hole (502) is opened on the outer wall of the inverted U-shaped frame (501), a first locking bolt (503) is threadedly connected to the inner wall of the first threaded hole (502), and an air-drying mechanism is arranged below the inverted U-shaped frame (501).

5. The asphalt mixture density test wax removal tool according to claim 4, characterized in that: The adjustment mechanism comprises a fixed tube (601) fixedly connected to the outer wall of the rotating rod (101); a movable rod (602) is fixedly connected to the top of the inverted U-shaped frame (501); the outer wall of the movable rod (602) is slidably connected to the inner wall of the fixed tube (601); a second threaded hole (603) is formed on the outer wall of the fixed tube (601); and a second locking bolt (604) is threadedly connected to the inner wall of the second threaded hole (603).

6. The asphalt mixture density test wax removal tool according to claim 4, characterized in that: The air-drying mechanism comprises an air compressor (801), a fourth connecting pipe (802) is provided at the output end of the air compressor (801), a plurality of fifth connecting pipes (803) are provided on the outer wall of the fourth connecting pipe (802), and a second valve (804) is provided in the middle of each of the plurality of fifth connecting pipes (803).

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