Asphalt rheological test clamp

Abstract

The utility model discloses an asphalt rheological test fixture, which comprises two bases, two support frames and a clamp, the support frames are door-shaped frames, the support frames are movably connected between the two bases, the support frames are movably connected with the clamp, and the clamp is movably connected with the support frames. The clamp comprises two groups of corresponding clamping plates and pressing plates, the two groups of pressing plates are movably connected through a shaft, a torsional spring is arranged in the middle of the shaft, and two ends of the torsional spring are respectively arranged on the pressing plates; the two ends of a shaft of the clamp are movably connected to the two supporting frames, a clamping plate of the clamp faces downwards, and a pressing plate of the clamp faces upwards. The clamp is simple in structure and can be assembled and disassembled, the number of the clamps can be installed according to requirements, reserved hole grooves are formed in the clamps, samples are directly clamped in the hole grooves between the clamp plates of the clamps in the test process, and operation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of asphalt experiment device especially relates to a kind of asphalt rheological test clamps. BACKGROUND

[0002] In asphalt static rheological test, creep test method is used to make asphalt into sample of specified shape, such as cylindrical or cuboid, and the sample is placed in the clamp of test equipment, a constant axial pressure or shear pressure is applied to the asphalt sample by loading device under constant temperature environment (such as 20℃ or 60℃). Then the displacement measuring device such as displacement sensor or strain gauge is used to record the change of deformation amount of asphalt under stress with time, and the creep curve is obtained. Generally, the creep curve includes instantaneous elastic deformation, delayed elastic deformation and viscous flow deformation three stages, and the parameters such as elastic modulus, delay time and viscosity coefficient of asphalt can be analyzed from the curve.

[0003] At present, the clamp structure in asphalt rheological test device is complex and fixed, and it is cumbersome to place sample on the clamp. The sample needs to be placed in the placement cylinder, and since the placement cylinder is fixed and has fixed size, the size of the sample needs to be controlled, and it is difficult to place. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in prior art, and provides an asphalt rheological test clamp.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An asphalt rheological test clamp, comprising a base, a support frame and a clamp, the base is provided with two, the support frame is a door type frame, the support frame is movably connected between two bases, the support frame is provided with two, and the clamp is movably connected on the support frame.

[0007] The clamp comprises two groups of corresponding clamping plates and pressing plates, the two groups of pressing plates are movably connected through a shaft, a torsional spring is arranged in the middle of the shaft, and the two ends of the torsional spring are arranged on the pressing plates respectively.

[0008] The two ends of the shaft of the clamp are movably connected on two support frames, the clamping plate of the clamp faces downward, and the pressing plate of the clamp faces upward.

[0009] The clamp is provided with more than one.

[0010] The base is provided with a connecting seat corresponding to the support frame, the side surface of the connecting seat is provided with a threaded hole, a fixed screw is screw-connected in the threaded hole, and the end part of the support frame is inserted into the connecting seat and fixed by screwing the fixed screw.

[0011] The upper surface of the support frame is provided with a groove corresponding to the shaft, and the shaft is clamped between the clamping plate and the groove.

[0012] The clamping plate of the clamp is provided with a hole groove, and the hole groove is provided with two or more, and the hole grooves are uniformly arranged between the clamping plates of the clamp.

[0013] The utility model discloses the beneficial effect is: simple structure can assemble disassembly, according to the demand installation clip quantity, set up the hole groove of reservation on the clip, directly when testing, the sample is clamped in the hole groove between the clamping plate of the clip, and the operation is convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structural drawing of the utility model;

[0015] Figure 2 It is the disassembly schematic drawing of the utility model;

[0016] Figure 3 It is Figure 2 The enlarged view of the ordinal number A;

[0017] Figure 4 It is the clamp structure drawing of the utility model;

[0018] In the drawing: 1, base;11, connecting seat;12, fixed screw;2, support frame;21, recess;22, clamping plate;3, clamp, 31, clamping plate;32, pressing plate;33, shaft;34, torsional spring;35, hole groove. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be described clearly and completely in combination with the embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] Embodiment 1

[0021] The utility model provides a kind of asphalt rheological test fixture, its structure is: including base 1, support frame 2 and clip 3, the base 1 is provided with two, the support frame 2 is door type frame, the support frame 2 movably connects between two bases 1, the support frame 2 is provided with two, and clip 3 is movably connected on the support frame 2;The clip 3 includes two groups of corresponding clamping plate 31 and pressing plate 32, the two groups of pressing plate 32 are movably connected by shaft 33, torsion spring 34 is arranged in the shaft 33 middle, the both ends of torsion spring 34 are respectively on pressing plate 32;The shaft 33 both ends of clip 3 movably connect on two support frames 2, the clamping plate 31 of clip 3 is downward, the pressing plate 32 of clip 3 is upward;The clip 3 is provided with 1;The base 1 is provided with the connecting seat 11 corresponding with support frame 2, the side of connecting seat 11 is provided with threaded hole, fixed screw 12 is screw-connected in threaded hole, and the end of support frame 2 is inserted into connecting seat 11 and is fixed by fixed screw 12 tightening;The upper surface of support frame 2 is provided with the recess 21 corresponding with the shaft 33, the both sides of recess 21 are provided with clamping plate 22, and the shaft 33 is clamped between clamping plate 22 and recess 21;The clamping plate 31 of clip 3 is provided with hole groove 35, the hole groove 35 is provided with 2, and the hole groove 35 is evenly arranged on the both sides of the clamping plate 31 of clip 3.

[0022] Example 2

[0023] As Figures 1-4 The utility model provides a kind of asphalt rheological test fixture, its structure is: including base 1, support frame 2 and clip 3, the base 1 is provided with two, the support frame 2 is door type frame, the support frame 2 movably connects between two bases 1, the support frame 2 is provided with two, and clip 3 is movably connected on the support frame 2;The clip 3 includes two groups of corresponding clamping plate 31 and pressing plate 32, the two groups of pressing plate 32 are movably connected by shaft 33, torsion spring 34 is arranged in the shaft 33 middle, the both ends of torsion spring 34 are respectively on pressing plate 32;The shaft 33 both ends of clip 3 movably connect on two support frames 2, the clamping plate 31 of clip 3 is downward, the pressing plate 32 of clip 3 is upward;The clip 3 is provided with 3;The base 1 is provided with the connecting seat 11 corresponding with support frame 2, the side of connecting seat 11 is provided with threaded hole, fixed screw 12 is screw-connected in threaded hole, and the end of support frame 2 is inserted into connecting seat 11 and is fixed by fixed screw 12 tightening;The upper surface of support frame 2 is provided with the recess 21 corresponding with the shaft 33, the both sides of recess 21 are provided with clamping plate 22, and the shaft 33 is clamped between clamping plate 22 and recess 21;The clamping plate 31 of clip 3 is provided with hole groove 35, the hole groove 35 is provided with 3, and the hole groove 35 is evenly arranged on the clamping plate 31 of clip 3.

[0024] Specifically, the asphalt sample is made into a cylindrical shape, clamped in the hole slot 35 of the clamp 3 clamping plate 31, and matched with the heating constant temperature device displacement sensing device for measurement and analysis.

Claims

1. An asphalt rheology test fixture, characterized by: Including base, support frame and clip, the base is provided with two, the support frame is door type frame, the support frame is movably connected between two bases, the support frame is provided with two, the support frame is movably connected clip;The clip includes two groups of corresponding clamping plates and pressing plates, the two groups of pressing plates are movably connected through the shaft, the shaft is provided with torsion spring in the middle, the both ends of the torsion spring are respectively on the pressing plate;The both ends of the shaft of the clip are movably connected on two support frames, the clamping plate of the clip faces downward, and the pressing plate of the clip faces upward.

2. The asphalt rheological test fixture of claim 1, wherein: The clip is provided with more than 1.

3. The asphalt rheological test fixture of claim 1, wherein: The base is provided with a connecting seat corresponding to the support frame, and the side of the connecting seat is provided with a threaded hole, and the threaded hole is threadedly connected with a fixing screw.

4. The asphalt rheological test fixture of claim 1, wherein: The upper surface of the support frame is provided with a groove corresponding to the shaft, and the both sides of the groove are provided with clamping plates, and the shaft is clamped between the clamping plates and the groove.

5. The asphalt rheological test fixture of claim 1, wherein: The clamping plates of the clip are provided with hole grooves, the hole grooves are provided with more than 2, and the hole grooves are evenly arranged between the clamping plates of the clip.

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