Pull-out test device for asphalt and aggregate adhesion test

Abstract

The utility model provides a pull-out test device for asphalt and aggregate adhesion test, which comprises a bottom plate, a mounting seat, two swing arms and two semi-ring sleeves, and is characterized in that the bottom plate is horizontally arranged and is used for placing an aggregate plate; the mounting seat is arranged at the top of the bottom plate; the two swing arms are symmetrically arranged on the two sides of a middle shaft of the mounting base and rotationally connected to the mounting base through a rotating shaft, extending in the vertical direction, of a main shaft, and the two swing arms can get close to each other or get away from each other. The two semi-ring sleeves are arranged at the ends, away from the mounting base, of the two swing arms in a one-to-one correspondence mode, openings of the two semi-ring sleeves face one side and are axially through, and the two semi-ring sleeves can be driven by the two swing arms to be close to each other and buckled with each other. According to the pull-out test device for asphalt and aggregate adhesion test, asphalt with different masses can be dropped into the two buckled semi-ring sleeves, so that the adhesion strength test between asphalt with different thicknesses and an aggregate plate is realized, and the reliability of a test result is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the construction material performance detection technical field, more specifically, relate to a kind of for asphalt and aggregate adhesion test's pull-out test device. BACKGROUND

[0002] Asphalt is waterproof material and anticorrosive material, and is also widely used in road engineering pavement structure cementing material. In civil engineering field, the binding strength between asphalt and aggregate prepared by research is often studied, so asphalt and aggregate adhesion test is involved.

[0003] The existing pull-out test is to drop un-solidified asphalt on aggregate plate, then place spindle with groove on asphalt, control the thickness of asphalt with groove, and then pull out spindle with pull-out force detector after asphalt solidifies, to test the binding strength between asphalt and aggregate. However, this method can only test the adhesion strength between single-thickness asphalt and aggregate plate, and the test is not comprehensive, which affects the reliability of test results. UTILITARY MODEL

[0004] The utility model embodiment provides a kind of for asphalt and aggregate adhesion test's pull-out test device, different quality asphalt can be dropped into the two half ring sleeves of buckling, to realize the adhesion strength test between different thickness asphalt and aggregate plate, guarantee the reliability of test results.

[0005] To achieve the above object, the utility model adopts the technical scheme of providing a kind of for asphalt and aggregate adhesion test's pull-out test device, including bottom plate, mounting seat, two swing arms and two half ring sleeves, bottom plate is horizontally arranged, for placing aggregate plate;Mounting seat is arranged on the top of bottom plate;Two swing arms are symmetrically arranged on the both sides of the central shaft of mounting seat, and are rotatably connected to mounting seat by the rotating shaft extending in up-down direction, two swing arms can be close to each other or away from each other;Two half ring sleeves are respectively and one-to-one corresponding arranged on the end of two swing arms away from mounting seat, two half ring sleeves are open to one side, and axially through, two half ring sleeves can be close to each other and buckled with each other under the driving of two swing arms, for accommodating asphalt.

[0006] In a possible implementation manner, a stand is arranged on the bottom plate and threadedly connected with the bottom plate, the stand extends upward and penetrates through the mounting seat, the mounting seat is slidingly connected with the stand, and the mounting seat is locked by a locking member.

[0007] In some embodiments, a plug-in hole is arranged in the mounting seat in up-down direction, the stand is located in the plug-in hole, the locking member is threadedly connected with the mounting seat and extends into the plug-in hole, and the inner end of the locking member is used for abutting and cooperating with the outer peripheral wall of the stand.

[0008] In a possible implementation, the mounting base has a rotating cavity which is open to one side and horizontally penetrates through.

[0009] In some embodiments, the rotating shaft penetrates through the mounting base and the swing arm in the up-down direction respectively, and the rotating shaft is threadedly connected with the swing arm.

[0010] In a possible implementation, the outer end of the swing arm is provided with an extension member which extends along the length direction of the swing arm, and the half-ring sleeve is arranged at the outer end of the extension member.

[0011] In some embodiments, the extension member comprises a sleeve and a sliding rod, the sleeve is connected to the outer end of the swing arm and extends along the length direction of the swing arm, and the sliding rod is slidingly connected in the sleeve.

[0012] In some embodiments, the outer end of the sliding rod is connected with an axially extending connecting rod, a horizontally arranged fixing plate is detachably connected on the connecting rod, and the half-ring sleeve is connected to the side edge of the fixing plate away from the connecting rod.

[0013] In some embodiments, the connecting rod is provided with a clamping cavity which is open away from the sliding rod and horizontally penetrates through, the fixing plate is located in the clamping cavity, and the fixing plate is connected with the connecting rod through a connecting member.

[0014] In a possible implementation, the adjacent end faces of the two half-ring sleeves are respectively provided with an up-down penetrating positioning slot and a positioning strip which is insertedly matched with the positioning slot.

[0015] Compared with the prior art, the pulling test device for testing the adhesion of asphalt and aggregate provided by the embodiments can ensure the reliability of the test results, because the inner diameter of the two half-ring sleeves is constant after buckling, and different masses of asphalt are poured into the half-ring sleeves in multiple tests, so as to test the adhesion strength between asphalt and aggregate plates of different thicknesses. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 The structural schematic diagram of the pulling test device for testing the adhesion of asphalt and aggregate provided by the embodiments of the present application is shown in the figure.

[0018] Figure 2 The exploded structural schematic diagram of the pulling test device for testing the adhesion of asphalt and aggregate provided by the embodiments of the present application after removing the bottom plate and the column is shown in the figure.

[0019] Figure 3 for the embodiment of the utility model Figure 2 The explosion structure schematic view of two fixed plates and two half ring sleeves;

[0020] Figure 4 for the embodiment of the utility model Figure 3 The partial enlarged structure schematic view of I place.

[0021] In the drawing, various reference signs are:

[0022] 10, bottom plate; 20, mounting seat; 21, locking piece; 22, plug-in hole; 23, rotating cavity; 30, swing arm; 31, rotating shaft; 40, half ring sleeve; 41, positioning groove; 42, positioning strip; 50, stand column; 60, telescopic piece; 61, sleeve pipe; 62, sliding rod; 70, connecting rod; 71, clamping cavity; 80, fixed plate; 81, connecting piece. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model more clearly understood, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0024] It should be noted that when an element is referred to as "provided on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and do 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 utility model. The terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more than two, unless otherwise specifically limited.

[0025] Please refer to Figures 1 to 4The utility model provides a drawing test device for asphalt and aggregate adhesion test, which comprises a base plate 10, a mounting seat 20, two swing arms 30 and two half ring sleeves 40. The base plate 10 is horizontally arranged and used for placing an aggregate plate. The mounting seat 20 is arranged on the top of the base plate 10. The two swing arms 30 are symmetrically arranged on both sides of the central shaft of the mounting seat 20 and are rotatably connected to the mounting seat 20 through a rotating shaft 31 extending in the up-down direction. The two swing arms 30 can approach or move away from each other. The two half ring sleeves 40 are arranged on one end of the two swing arms 30 away from the mounting seat 20 in one-to-one correspondence. The two half ring sleeves 40 are open to one side and axially through. The two half ring sleeves 40 can approach and engage with each other under the driving of the two swing arms 30 and are used for containing asphalt.

[0026] In the actual use process of the drawing test device for asphalt and aggregate adhesion test, a certain gap is reserved between the base plate 10 and the swing arm 30 for placing the aggregate plate. Glycerin talcum powder release agent (the mass ratio of glycerin to talcum powder is 2:1) is applied to the inner circumferential wall of the half ring sleeve 40. The two swing arms 30 are swung to the measurement point of the aggregate plate, and the two half ring sleeves 40 are engaged with each other. The asphalt to be measured is dropped into the half ring sleeve 40. The thickness of the asphalt in the half ring sleeve 40 is observed. When the dropped asphalt reaches a specified thickness, the required asphalt mass is recorded. A 20mm spindle (the contact surface of the spindle and the asphalt is pre-coated with glue) is placed. When the asphalt consolidation strength is preliminarily formed, the swing arm 30 is swung in the direction away from each other, so that the two half ring sleeves 40 are separated. The aggregate plate is taken off the base plate 10. Then, the excess asphalt coating on the edge of the spindle is cut off by a 20mm cutter. After a period of time, when the asphalt bonding strength is formed, the spindle is fixed by the port of the bonding strength drawing force detector. Then, the drawing force is applied, and the bonding drawing force of the bonding material is obtained. The bonding strength is calculated. Finally, the base plate 10, the half ring sleeve 40 and the spindle are cleaned.

[0027] Because the inner diameter of the two half ring sleeves 40 is fixed after engagement, different masses of asphalt are poured into the half ring sleeve 40 in multiple tests, so that the adhesion strength test between asphalt of different thicknesses and the aggregate plate can be tested, and the reliability of the test results is ensured.

[0028] Compared with the prior art, the drawing test device for asphalt and aggregate adhesion test provided by the embodiment can test the adhesion strength test between asphalt of different thicknesses and the aggregate plate, and ensure the reliability of the test results.

[0029] In a possible implementation, the above-mentioned base plate 10 adopts the structure shown in Figure 1 and Figure 2 , and the base plate 10 is provided with a plurality of grooves 11 arranged in the same direction and arranged in the same direction as the swing arm 30.Figure 1 and Figure 2 The base plate 10 is provided with a stand 50 threadedly connected with the base plate 10, the stand 50 extends upward and penetrates the mounting seat 20, the mounting seat 20 is in sliding fit with the stand 50, and the mounting seat 20 is locked by a locking member 21.

[0030] Specifically, the locking member 21 is used to lock the position of the mounting seat 20 in the axial direction of the stand 50, by adjusting the position of the mounting seat 20 in the axial direction of the stand 50, different thicknesses of aggregate plates can be placed, and after the asphalt is dripped into the semi-ring sleeve 40, the asphalt is preliminarily formed in strength, the swing arm 30 can be slightly opened, then the mounting seat 20 is moved upward, the semi-ring sleeve 40 avoids the solidified asphalt, and the semi-ring sleeve 40 is aligned with the upper and lower test point positions on the aggregate plate, and the mounting seat 20 is moved downward, and then a plurality of test point positions on the aggregate plate are tested in sequence, thereby improving the convenience of testing.

[0031] In some embodiments, referring to Figure 1 and Figure 2 The mounting seat 20 is provided with a plug-in hole 22 penetrating in the up-down direction, the stand 50 is located in the plug-in hole 22, the locking member 21 is threadedly connected with the mounting seat 20 and extends into the plug-in hole 22, and the inner end of the locking member 21 is used to abut against the outer peripheral wall of the stand 50.

[0032] Specifically, the locking member 21 is horizontally arranged, when it is necessary to fix the position of the mounting seat 20, the locking member 21 is rotated to abut against the outer peripheral wall of the stand 50, and when it is necessary to move the position of the mounting seat 20, the locking member 21 is only needed to be rotated to be separated from the stand 50, thereby improving the convenience of use.

[0033] In a possible implementation, the mounting seat 20 adopts the structure as shown in Figure 1 and Figure 2 Referring to Figure 1 and Figure 2 The mounting seat 20 has a rotating cavity 23 horizontally penetrating and having an opening facing one side, and the rotating shaft 31 is located in the rotating cavity 23.

[0034] Specifically, the rotating cavity 23 can give the two swing arms 30 enough swing space, and avoid that the two swing arms 30 are separated by no component, thereby facilitating the buckling of the two semi-ring sleeves 40.

[0035] In some embodiments, referring to Figure 1 and Figure 2 The rotating shaft 31 penetrates the mounting seat 20 and the swing arm 30 in the up-down direction respectively, and the rotating shaft 31 is threadedly connected with the swing arm 30.

[0036] Specifically, the rotating shaft 31 is a bolt, and the bolt is rotatably matched with the mounting base 20. When the swing arm 30 needs to be disassembled, it is only necessary to rotate the bolt to separate it from the swing arm 30, which not only facilitates the swinging of the swing arm 30, but also facilitates the disassembly of the swing arm 30.

[0037] In a possible implementation, the swing arm 30 is configured as follows: Figure 1 and Figure 2 The structure shown, see Figure 1 and Figure 2 The outer end of the swing arm 30 is provided with a telescopic member 60 extending along the length direction of the swing arm 30 , and the semi-ring sleeve 40 is provided at the outer end of the telescopic member 60 .

[0038] Specifically, by extending and retracting the telescopic member 60 and coordinating with the swinging of the swing arm 30 , the adjustment range of the semi-annular sleeve 40 on the collecting plate is increased, and point position testing on the collecting plate can be increased.

[0039] In some embodiments, see Figure 1 and Figure 2 The telescopic member 60 includes a sleeve 61 and a slide rod 62 . The sleeve 61 is connected to the outer end of the swing arm 30 and extends along the length direction of the swing arm 30 ; the slide rod 62 is slidably connected in the sleeve 61 .

[0040] Specifically, there is a certain amount of pressure between the outer circumferential wall of the slide rod 62 and the inner circumferential wall of the sleeve 61 , so that the user can pull the slide rod 62 with a slight force, so that the slide rod 62 can maintain its extended length.

[0041] In some embodiments, see Figures 1 to 3 The outer end of the slide rod 62 is connected to an axially extending connecting rod 70 , and a horizontally arranged fixing plate 80 is detachably connected to the connecting rod 70 . The semi-annular sleeve 40 is connected to a side edge of the fixing plate 80 away from the connecting rod 70 .

[0042] Specifically, the semi-annular sleeves 40 with different inner diameters can be replaced by disassembling the fixing plate 80 to achieve bonding strength testing of asphalt with different bonding areas with the aggregate plate.

[0043] In some embodiments, see Figures 1 to 3 The connecting rod 70 is provided with a locking cavity 71 with an opening facing away from the slide rod 62 and running horizontally. The fixing plate 80 is located in the locking cavity 71 , and the fixing plate 80 is connected to the connecting rod 70 through a connecting piece 81 .

[0044] Specifically, the surface of the fixing plate 80 is parallel to the surface of the base plate 10, and the connecting member 81 is a screw. The connecting member 81 passes through the connecting rod 70 and the fixing plate 80 in the up and down directions, and is threadedly connected to the connecting rod 70 located at the lower part of the fixing plate 80, which is convenient.

[0045] In a possible implementation, the semi-annular sleeve 40 is formed as follows:Figures 1 to 4 The structure is shown in Fig. 1. Figures 1 to 4 The adjacent end faces of the two half ring sleeves 40 are respectively provided with positioning grooves 41 and positioning strips 42 which are inserted and matched with the positioning grooves 41.

[0046] Specifically, when the two half ring sleeves 40 are buckled, the positioning strips 42 are inserted into the positioning grooves 41, thereby improving the stability of the buckling of the two half ring sleeves 40.

[0047] Further, when the features of the positioning grooves 41 and the positioning strips 42 are used in cooperation with the telescopic members 60, under the mutual limitation of the positioning strips 42 and the positioning grooves 41, the phenomenon that the telescoping of a certain telescopic member 60 causes the separation of the two half ring sleeves 40 is avoided, thereby improving the practicability.

[0048] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pull-off test device for asphalt-aggregate adhesion testing, characterized in that, The utility model relates to a pitch storage device, including: a bottom plate arranged horizontally for placing aggregate plates; a mounting seat arranged on the top of the bottom plate; two swing arms symmetrically arranged on both sides of the central axis of the mounting seat and rotatably connected to the mounting seat through a main shaft extending in the up-down direction, the two swing arms being capable of moving closer to or further away from each other; and two half-ring sleeves each corresponding to one of the swing arms and arranged at the end of the swing arm away from the mounting seat, the two half-ring sleeves having openings facing one side and being axially through, the two half-ring sleeves being capable of moving closer to each other and being buckled to each other under the driving of the two swing arms for accommodating pitch.

2. The pull-out test device for asphalt-aggregate adhesion testing of claim 1, wherein, The bottom plate is provided with a stand arranged in threaded connection with the bottom plate, the stand extending upward and penetrating through the mounting seat, the mounting seat being in sliding fit with the stand, and the mounting seat being locked by a locking member.

3. The pull-off test device for asphalt-aggregate adhesion testing of claim 2, wherein, The mounting seat is provided with a plug-in hole penetrating in the up-down direction, the stand being located in the plug-in hole, the locking member being in threaded connection with the mounting seat and extending into the plug-in hole, and the inner end of the locking member being used for abutting fit with the outer peripheral wall of the stand.

4. The pull-out test apparatus for asphalt-aggregate adhesion testing of claim 1, wherein, The mounting seat has a rotating cavity with an opening facing one side and horizontally penetrating, and the rotating shaft is located in the rotating cavity.

5. The pull-off test device for asphalt-aggregate adhesion testing of claim 4, wherein, The rotating shaft penetrates the mounting seat and the swing arm in the up-down direction, and the rotating shaft is in threaded connection with the swing arm.

6. The pull-out test apparatus for asphalt-aggregate adhesion testing of claim 1, wherein, The outer end of the swing arm is provided with an extension member extending in the length direction of the swing arm, and the half-ring sleeve is arranged at the outer end of the extension member.

7. The pull-off test device for asphalt-aggregate adhesion testing of claim 6, wherein, The extension member includes: a sleeve connected to the outer end of the swing arm and extending in the length direction of the swing arm; and a slide rod slidably connected in the sleeve.

8. The pull-out test apparatus for asphalt-aggregate adhesion testing of claim 7, wherein, The outer end of the slide rod is connected with an axially extending connecting rod, the connecting rod being detachably connected with a horizontally arranged fixing plate, and the half-ring sleeve being connected to the side edge of the fixing plate away from the connecting rod.

9. The pull-out test device for asphalt-aggregate adhesion testing of claim 8, wherein, The connecting rod is provided with a clamping cavity with an opening facing away from the slide rod and horizontally penetrating, the fixing plate being located in the clamping cavity, and the fixing plate being connected with the connecting rod through a connecting member.

10. The pull-out test device for asphalt-aggregate adhesion testing of any one of claims 1-9, wherein, The adjacent end faces of the two half-ring sleeves are respectively provided with an up-down through positioning groove and a positioning strip in plug-in fit with the positioning groove.

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