Device for testing water stability of asphalt mixture for road

Abstract

The utility model relates to the technical field of asphalt mixture testing, in particular to a road asphalt mixture water stability testing device which comprises a base, a vibrating table is mounted at the top of the base, a bracket is mounted at the top end of the vibrating table, a testing barrel is mounted at the top end of the bracket, and a top cover is mounted at the top end of the testing barrel. A nozzle extending to the inner side of the testing barrel is embedded in the top cover, a bracket is mounted at the bottom end of the inner side of the testing barrel, a rotating sleeve is rotationally connected to the top end of the bracket, a test piece is clamped to the inner side of the rotating sleeve through a clamping ring, and a top slag positioning mechanism is mounted on the bracket and the testing barrel; the top slag positioning mechanism comprises a filter plate, a material pushing assembly and a clamping assembly; the device is simple in structure and convenient to operate, residues clamped in each group of filter holes do not need to be ejected and collected one by one, the labor amount of workers is reduced, the filter plates can be taken and placed by pressing and pulling once, and the working efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bituminous mixture test technical field, concretely relates to road bituminous mixture water stability testing arrangement. BACKGROUND

[0002] Water damage is one of the main diseases of asphalt pavement of expressway in our country, and is particularly serious in the expressway of rainy and humid area. Water damage is that the water in the pavement gap repeatedly produces dynamic water pressure or vacuum suction under the action of automobile wheel dynamic load after the pavement is soaked by water, and the water gradually penetrates into the interface between asphalt and aggregate, so that the adhesion of asphalt is reduced and gradually loses the cohesive force, the asphalt film falls off from the surface of aggregate, the asphalt mixture is dropped and loose, and then the diseases such as peeling and pothole of asphalt pavement are formed, therefore, the water stability test of asphalt mixture is very important. At present, the immersion Marshall test and freeze-thaw splitting test are generally used in the laboratory, these tests are based on that the adhesion between asphalt and mineral aggregate and the adhesion between mixture particles are reduced when the water stability is insufficient, so that the mechanical strength of the test piece is reduced, and the water stability is indirectly represented by testing the reduction of the mechanical properties of asphalt mixture, but the preparation stage of the test is relatively complicated and time-consuming, for example, the immersion Marshall test needs to measure the splitting force value under the same loading condition of a test piece soaked for 0.5h and a test piece soaked for 48h, and the freeze-thaw splitting test needs to be frozen for 24 or 48h, then maintained at 60 DEG C for 4h under the same water temperature, and finally the related test is carried out.

[0003] In order to solve the above technical problems, the Chinese patent with publication number CN205808855U discloses a kind of asphalt mixture water stability testing device, including the base with control panel, base is connected with bottom plate in its upper side by vibration table, and fixed pillar that can be detached is also arranged between base and bottom plate; The upper portion of bottom plate is provided with test barrel, and the bottom disc for fixing test piece is arranged in the inner side of test barrel bottom, and the bottom disc is connected with power device for driving the rotation of bottom disc; The upper portion of test barrel is provided with water inlet, and one end of water inlet is connected with water supply pipe, and the other end of water inlet is connected with several spray heads, and spray heads are all located above test piece.

[0004] Although the prior art scheme can test the water stability of asphalt mixture directly by scouring action, the time consumption is relatively short, but the sizes of the precipitates scoured down are different, after removing the large-size residues, some small residues are easily scoured to the holes of filter screen by water flow and are stuck in filter holes, and staff needs to clean and collect the residues stuck in each group of filter holes one by one after taking out filter screen, to carry out subsequent test steps, which is relatively complicated and time-consuming, increases the labor of staff, and affects work efficiency. UTILITY MODEL CONTENT

[0005] The utility model discloses a road asphalt mixture water stability testing arrangement is provided to solve the problem in the above background technology.

[0006] To realize above -mentioned purpose, the utility model provides the following technical scheme:

[0007] Road asphalt mixture water stability testing arrangement, including the base, the top of base is equipped with the vibration table, the top of vibration table is installed with the support seat, the top of support seat is installed with the test bucket, the top of test bucket is installed with the top cap, the inside embedding of top cap is installed with the shower head extending to the inside of test bucket, the inside bottom of test bucket is installed with the bracket, the top of bracket is rotatably connected with the rotating sleeve, the inside of rotating sleeve is connected with the test piece through snap ring, install top residue positioning mechanism on the bracket and test bucket, top residue positioning mechanism includes filter plate, push material subassembly and joint subassembly, push material subassembly is used for pushing out the precipitate of being jointed in the inside of filter plate filter hole, joint subassembly is used for quick dismounting filter plate.

[0008] As the preferred scheme of the utility model, the push material subassembly includes the first waterproof motor of installing in the one side of the bracket inner wall, one side of first waterproof motor is installed with fixed cylinder, the inside of fixed cylinder is rotatably connected with threaded rod, one end of threaded rod outer wall is equipped with the first bevel gear, one side of first bevel gear is connected with the second bevel gear, and the drive end of first waterproof motor extends to one end of the inside of fixed cylinder and is fixedly connected with one side of second bevel gear.

[0009] As the preferred scheme of the utility model, one side of fixed cylinder outer wall is provided with adjusting groove, the other end of threaded rod outside is connected with adjusting block in screw thread, adjusting block and adjusting groove are slidingly connected, the other end of adjusting block is installed with top frame, and the top of top frame is arranged and installed with multiple groups of top posts corresponding to filter hole on filter plate.

[0010] As the preferred scheme of the utility model, the joint subassembly includes the fixed seat of installing in one side of test bucket outer wall, one side of fixed seat is provided with the lapping groove, one side of test bucket is provided with the extension groove, the inside of lapping groove and extension groove is slidingly connected with the lapping plate, the inside wall of extension groove is embedded and installed with the sealing ring that is attached with the lapping plate outer wall.

[0011] As the preferred scheme of the utility model, the both ends in the fixed seat and one side of lapping groove are provided with the clamping groove, one side of lapping plate is installed with the clamping block that is slidingly connected with the clamping groove, one side of the fixed seat in the clamping groove is provided with reset groove, the inside of reset groove is slidingly connected with reset plate, the opposite end of reset plate and clamping block is provided with the inclined surface that is attached with each other, and the both ends of reset plate one side and reset groove are all installed with the first spring.

[0012] As the preferred scheme of the utility model, one side of the reset plate is provided with a pull rod between the two groups of first springs, one end of the pull rod extending to the outside of the fixed seat is provided with a connecting plate, and the other side of the connecting plate is provided with a pull ring in the center.

[0013] As the preferred scheme of the utility model, one side of the reset plate is provided with a pull rod between the two groups of first springs, one end of the pull rod extending to the outside of the fixed seat is provided with a connecting plate, and the other side of the connecting plate is provided with a pull ring in the center.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In the utility model, the sediment clamped in the filter hole of the filter plate is pushed out by the pushing assembly, and the filter plate is quickly disassembled and assembled by the clamping assembly, so that the labor of the workers is reduced, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic view of the utility model;

[0017] Figure 2 It is the test barrel sectional structure schematic view of the utility model;

[0018] Figure 3 It is the pushing assembly partial sectional structure schematic view of the utility model;

[0019] Figure 4 It is the filter plate three-dimensional structure schematic view of the utility model;

[0020] Figure 5 It is the fixed seat three-dimensional structure schematic view of the utility model;

[0021] Figure 6 It is the clamping assembly partial sectional structure schematic view of the utility model;

[0022] Figure 7 It is the second waterproof motor and the rotating sleeve partial structure schematic view of the utility model.

[0023] In the figure: 1, base; 2, vibration table; 3, support seat; 4, test barrel; 5, spray head; 6, bracket; 7, rotating sleeve; 8, test piece; 9, filter plate; 10, first waterproof motor; 11, fixed cylinder; 12, threaded rod; 13, first bevel gear; 14, top column; 15, fixed seat; 16, lap plate; 17, clamping block; 18, reset plate; 19, first spring; 20, pull rod; 21, connecting plate; 22, second waterproof motor; 23, first gear; 24, top frame. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. EMBODIMENT

[0025] Please refer to Figures 1-7 The utility model provides a technical scheme:

[0026] The road asphalt mixture water stability testing device, including base 1, the top of base 1 is installed vibration table 2, the top of vibration table 2 is installed support seat 3, the top of support seat 3 is installed test barrel 4, the top of test barrel 4 is installed top cap, the inside embedding of top cap is installed spray head 5 extending to the inside of test barrel 4, the inside bottom of test barrel 4 is installed bracket 6, the top of bracket 6 is rotatably connected with rotating sleeve 7, the inside of rotating sleeve 7 is clamped with test piece 8 by snap ring, bracket 6 and test barrel 4 are installed with top residue positioning mechanism, top residue positioning mechanism includes filter plate 9, push material assembly and clamping assembly, push material assembly is used for pushing out the precipitate clamped in the inside of filter hole of filter plate 9, clamping assembly is used for quickly disassembling filter plate 9, the device can push out the precipitate clamped in the inside of filter hole of filter plate 9 by push material assembly when using, clamping assembly quickly disassembles filter plate 9, and the structure is simple, convenient to operate, without pushing out and collecting the residue clamped in each group filter hole one by one, the labor of staff is reduced, and the taking and placing of filter plate 9 can be completed by one pressing and one pulling, further improve the work efficiency.

[0027] In the embodiment, as Figure 1 , Figure 3 and Figure 4As shown, the pushing assembly comprises a first waterproof motor 10 mounted on one side of the inner wall of the bracket 6, a fixed cylinder 11 is mounted on one side of the first waterproof motor 10, a threaded rod 12 is rotatably connected to the inner side of the fixed cylinder 11, a first bevel gear 13 is sleeved on one end of the outer wall of the threaded rod 12, a second bevel gear is meshingly connected on one side of the first bevel gear 13, the driving end of the first waterproof motor 10 extends to one end of the inner side of the fixed cylinder 11 and is fixedly connected with one side of the second bevel gear, an adjusting groove is formed on one side of the outer wall of the fixed cylinder 11, an adjusting block is threadedly connected to the other end of the outer side of the threaded rod 12, the adjusting block is slidably connected with the adjusting groove, a top frame 24 is mounted on the other end of the adjusting block, a plurality of top columns 14 corresponding to the filter holes of the filter plate 9 are arranged and mounted on the top of the top frame 24. First, after the test piece 8 is tested, the first waterproof motor 10 can be started to drive the second bevel gear to rotate, and the first bevel gear 13 can drive the threaded rod 12 to rotate, so that the adjusting plate slides in the adjusting groove, and the top frame 24 drives the top column 14 to approach the filter hole on the filter plate 9, so that the residue clamped on the inner side is pushed out. After being pushed out, the top frame 24 can be reset to the lowermost position, and the hollow part on the top frame 24 can allow water to flow through.

[0028] In this embodiment, as shown in Figure 1 , Figure 5 and Figure 6 , the clamping assembly comprises a fixed seat 15 mounted on one side of the outer wall of the test barrel 4, a lap joint groove is formed on one side of the fixed seat 15, an extension groove is formed on one side of the test barrel 4, a lap joint plate 16 is slidably connected in the lap joint groove and the extension groove, a sealing ring is embeddedly mounted on the inner wall of the extension groove and abuts against the outer wall of the lap joint plate 16, a clamping groove is formed on one side of the lap joint groove and at both ends in the fixed seat 15, a clamping block 17 is mounted on one side of the lap joint plate 16 and slidably connected with the clamping groove, a reset groove is formed on one side of the clamping groove in the fixed seat 15, a reset plate 18 is slidably connected in the reset groove, inclined surfaces are formed on the opposite ends of the reset plate 18 and the clamping block 17 and abut against each other, first springs 19 are mounted between the two ends of one side of the reset plate 18 and the reset groove, then the pull ring is buckled to drive the connecting plate 21 and the pull rod 20 to move upward, the reset plate 18 is pressed to retract the two groups of first springs 19, and the protruding end of the clamping block 17 is away, then the lap joint plate 16 can be pulled out together with the filter plate 9.

[0029] In this embodiment, as shown in Figure 1 , Figure 5 and Figure 6As shown, one side of the reset plate 18 is installed between the two groups of first springs 19, and a pull rod 20 is arranged outside the fixed seat 15, and a connecting plate 21 is arranged at one end of the pull rod 20, and a pull ring is arranged at the other side of the connecting plate 21, and further, after the residual sludge is removed, the lap plate 16 can be clamped into the lap slot again, the filter plate 9 is arranged inside the test barrel 4, the sealing ring can increase the sealing of the connection, the clamping block 17 is arranged inside the clamping groove and contacts the reset plate 18, the two inclined surfaces are attached, the reset plate 18 is forced to extrude the two groups of first springs 19 to retract, until the clamping block 17 is completely pushed into the clamping groove, the first spring 19 drives the reset plate 18 to pop out and abut against the protruding end of the clamping block 17, and the position of the filter plate 9 is locked.

[0030] In this embodiment, as shown in Figure 1 、 Figure 2 and Figure 7 , one side of the inner wall of the test barrel 4 is installed with a mounting plate, one end of the mounting plate is installed with a second waterproof motor 22, the driving end of the second waterproof motor 22 is installed with a first gear 23, the outer wall of the rotating sleeve 7 is sleeved with a second gear meshing with the first gear 23, and the bottom of the bracket 6 is arranged with a plurality of drainage grooves, and one end of the test barrel 4 is embeddedly installed with a drain pipe, and further, starting the second waterproof motor 22 can drive the first gear 23 to rotate, drive the second gear meshing with it to rotate, so that the rotating sleeve 7 cooperates with the clasp ring to drive the test piece 8 to rotate, and then the spray head 5 is started to spray water flow to flush and test the test piece 8.

[0031] The implementation principle of the road asphalt mixture water stability test device of the embodiment of the application is as follows: after the test of the test piece 8 is completed, the first waterproof motor 10 can be started to drive the second bevel gear to rotate, and the first bevel gear 13 can drive the threaded rod 12 to rotate, so that the adjusting plate slides in the adjusting groove, the top frame 24 drives the top column 14 to approach the filter hole on the filter plate 9, and the residual substances clamped on the inner side of the filter plate 9 are pushed out, and after the residual substances are pushed out, the top frame 24 can be reset to the lowermost position, the hollow part on the top frame 24 can allow water flow to pass through, the pull ring is buckled to drive the connecting plate 21 and the pull rod 20 to move upwards, the reset plate 18 is pressed to retract the two groups of first springs 19, and the protruding end of the clamping block 17 is away from the clamping block 17, then the lap joint plate 16 and the filter plate 9 can be pulled out together, after the residual substances are removed, the lap joint plate 16 can be clamped into the lap joint groove again, the filter plate 9 is arranged in the test barrel 4, the sealing ring can increase the sealing performance of the connection, the clamping block 17 is arranged in the clamping groove and in contact with the reset plate 18, the two inclined surfaces are in contact, the reset plate 18 is forced to retract the two groups of first springs 19, until the clamping block 17 is completely pushed into the clamping groove, the first spring 19 drives the reset plate 18 to pop out and abut against the protruding end of the clamping block 17, and the position of the filter plate 9 is locked, the second waterproof motor 22 is started to drive the first gear 23 to rotate, the second gear meshed with the first gear 23 is rotated, the rotating sleeve 7 cooperates with the clasp to drive the test piece 8 to rotate together, and then the nozzle 5 is started to spray water flow to flush and test the test piece 8.

[0032] The control mode of the utility model is controlled through the controller, the control circuit of the controller can be realized through simple programming of the person skilled in the art, the power supply also belongs to the public knowledge in the field, and the utility model is used to protect the mechanical device, so the utility model will not explain the control mode and circuit connection in detail.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. Device for testing the water stability of road asphalt mixtures, comprising a base (1), characterised in that: The top of the base (1) is provided with a vibration table (2), the top end of the vibration table (2) is provided with a support seat (3), the top end of the support seat (3) is provided with a test barrel (4), the top end of the test barrel (4) is provided with a top cover, the inside of the top cover is embeddedly provided with a shower head (5) extending to the inside of the test barrel (4), the inside bottom end of the test barrel (4) is provided with a bracket (6), the top end of the bracket (6) is rotatably connected with a rotating sleeve (7), the inside of the rotating sleeve (7) is clamped with a test piece (8) through a snap ring, the bracket (6) and the test barrel (4) are provided with a top slag positioning mechanism, the top slag positioning mechanism comprises a filter plate (9), a pushing assembly and a clamping assembly, the pushing assembly is used for pushing out the precipitate clamped into the filter hole of the filter plate (9), and the clamping assembly is used for quickly disassembling the filter plate (9).

2. The device for testing water stability of road asphalt mixture according to claim 1, characterized in that: The pushing assembly comprises a first waterproof motor (10) mounted on one side of the inner wall of the bracket (6), a fixed cylinder (11) is mounted on one side of the first waterproof motor (10), a threaded rod (12) is rotatably connected to the inside of the fixed cylinder (11), a first bevel gear (13) is sleeved on one end of the outer wall of the threaded rod (12), a second bevel gear is meshedly connected on one side of the first bevel gear (13), and the driving end of the first waterproof motor (10) extends to one end of the inside of the fixed cylinder (11) and is fixedly connected with one side of the second bevel gear.

3. The device for testing water stability of road asphalt mixture according to claim 2, characterized in that: One side of the outer wall of the fixed cylinder (11) is provided with an adjusting groove, the other end of the outer side of the threaded rod (12) is threadedly connected with an adjusting block, the adjusting block and the adjusting groove are in sliding connection, and the other end of the adjusting block is provided with a top frame (24), and the top of the top frame (24) is arranged with a plurality of top columns (14) corresponding to the filter holes of the filter plates (9).

4. The device for testing water stability of road asphalt mixture according to claim 3, characterized in that: The clamping assembly comprises a fixed seat (15) mounted on one side of the outer wall of the test barrel (4), the fixed seat (15) is provided with a lap joint groove on one side, the test barrel (4) is provided with an extension groove on one side, the lap joint groove and the extension groove are slidably connected with a lap joint plate (16) on the inside, and the inner wall of the extension groove is embeddedly provided with a sealing ring abutting against the outer wall of the lap joint plate (16).

5. The device for testing water stability of road asphalt mixture according to claim 4, characterized in that: The inside of the fixed seat (15) is provided with a clamping groove on both ends and one side of the lap joint groove, one side of the lap joint plate (16) is provided with a clamping block (17) in sliding connection with the clamping groove, the inside of the fixed seat (15) is provided with a reset groove on one side of the clamping groove, the reset groove is slidably connected with a reset plate (18) on the inside, and the opposite ends of the reset plate (18) and the clamping block (17) are provided with inclined surfaces abutting against each other, and the opposite ends of the reset plate (18) and the reset groove are provided with first springs (19).

6. The device for testing water stability of road asphalt mixture according to claim 5, characterized in that: The reset plate (18) is provided with a pull rod (20) between the two groups of first springs (19) on one side, one end of the pull rod (20) extending to the outside of the fixed seat (15) is provided with a connecting plate (21), and the other side of the connecting plate (21) is provided with a pull ring at the central position.

7. The device for testing water stability of road asphalt mixture according to claim 6, characterized in that: One side of the inner wall of the test barrel (4) is provided with a mounting plate, one end of the mounting plate is provided with a second waterproof motor (22), the driving end of the second waterproof motor (22) is provided with a first gear (23), the outer wall of the rotating sleeve (7) is sleeved with a second gear meshing with the first gear (23), the bottom of the bracket (6) is arranged with a plurality of groups of drainage grooves, and one end of the test barrel (4) is embeddedly provided with a drain pipe.

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