CN221039066U - Asphalt viscosity and toughness testing instrument - Google Patents
Asphalt viscosity and toughness testing instrument Download PDFInfo
- Publication number
- CN221039066U CN221039066U CN202322387376.XU CN202322387376U CN221039066U CN 221039066 U CN221039066 U CN 221039066U CN 202322387376 U CN202322387376 U CN 202322387376U CN 221039066 U CN221039066 U CN 221039066U
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- Prior art keywords
- positioning ring
- asphalt
- clamping
- push
- blocks
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- 239000010426 asphalt Substances 0.000 title claims abstract description 57
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 230000000694 effects Effects 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses an asphalt viscosity and toughness testing instrument, which comprises a clamping mechanism, a positioning mechanism and a driving mechanism; the clamping mechanism comprises a sliding rail and clamping blocks, a plurality of sliding rails are arranged on the workbench, the sliding rail is provided with the clamping blocks which are in sliding connection, and the clamping blocks are provided with push rods; the positioning mechanism comprises a positioning ring and push blocks, the positioning ring is rotatably arranged, a plurality of the push blocks are arranged on the inner side of the positioning ring, and the push blocks can push the push rod to move; the driving mechanism comprises a hydraulic cylinder, a driving rack and a driven rack, wherein the hydraulic cylinder is connected with the driving rack, and the driven rack is arranged on the positioning ring in an arc shape and is meshed with the driving rack. According to the asphalt viscosity and toughness testing instrument, the asphalt container is clamped from multiple directions through the multiple clamping blocks, so that the asphalt container can be prevented from being pulled up during stretching, and the accuracy of test data is improved. And the asphalt container is clamped simultaneously from a plurality of directions, so that the asphalt container can be pushed to be positioned, and the clamping distortion of the clamp is avoided.
Description
Technical Field
The utility model relates to the technical field of asphalt tests, in particular to an asphalt viscosity and toughness testing instrument.
Background
The viscosity and toughness of the asphalt are an important index for detecting the modified asphalt, and the viscosity and toughness of the modified asphalt are measured through an asphalt viscosity and toughness test so as to evaluate the modification effect of the asphalt after the modifier is added. The asphalt viscosity toughness test is to measure the viscosity of asphalt and a metal hemisphere when the asphalt is stretched at a specified temperature, the asphalt is firstly added into a container and covered on the metal hemisphere, and the metal hemisphere can be stretched upwards through a stretching device after the asphalt is cooled and insulated.
In the prior art, the asphalt container is directly placed on a workbench below the stretching device, no corresponding fixing mechanism exists, and when the overall weight of asphalt is insufficient, the asphalt container is also pulled up to be suspended when a stretching metal hemisphere possibly appears, so that test data are inaccurate. In addition, the stretching device usually clamps the screw rod on the metal hemisphere through the clamp, if the center of the screw rod is not overlapped with that of the clamp, the screw rod is easy to clamp askew, and the accuracy of test data is affected due to uneven stress during stretching.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model provides an asphalt viscosity and toughness testing instrument which can fix an asphalt container during stretching.
In order to achieve the above object, the present utility model is realized by the following technical scheme: an asphalt viscosity and toughness testing instrument comprises a clamping mechanism, a positioning mechanism and a driving mechanism;
The clamping mechanism comprises sliding rails and clamping blocks, a plurality of sliding rails are arranged on the workbench around the circumference of the container and are radially arranged along the sliding rails, the sliding rails are provided with the clamping blocks which are in sliding connection, and one ends, far away from each other, of the clamping blocks are provided with push rods;
The positioning mechanism comprises a positioning ring and push blocks, the positioning ring is rotatably arranged on the workbench, the push blocks are uniformly arranged on the inner side of the positioning ring around the circumferential direction, one side of each push block, which is far away from the positioning ring, is provided with an inclined surface, one end of each inclined surface is far away from the positioning ring than the other end of each inclined surface, and the inclined surface is abutted with one end of each push rod, which is far away from the clamping block;
The driving mechanism comprises a hydraulic cylinder, a driving rack and a driven rack, wherein the hydraulic cylinder is connected with the driving rack, and the driven rack is arc-shaped, is circumferentially arranged on the positioning ring and is meshed with the driving rack.
Before stretching, the asphalt container is placed at the position between the clamping blocks, the driving rack is driven to axially move through the hydraulic cylinder, the driven rack and the positioning ring are driven to circumferentially rotate, the push rod can be pushed through the push block when the positioning ring rotates, and the inclined surface of the push rod pushes the push rod to axially move. The plurality of push rods respectively drive the clamping blocks to move on the slide rail, so that the plurality of clamping blocks can clamp the asphalt container from a plurality of directions simultaneously.
The asphalt viscosity and toughness testing instrument has the beneficial effects that: the asphalt container is clamped from multiple directions through the multiple clamping blocks, so that a good fixing effect is achieved, the asphalt container is prevented from being pulled up during stretching, and accuracy of test data is improved. And simultaneously clamping the asphalt container from a plurality of directions, the asphalt container with inaccurate placement position can be pushed, the center of the asphalt container is ensured to coincide with the center of the clamp of the stretching device, and the clamping is prevented from being askew.
Further, one end of the clamping block, which is far away from the push rod, is in a cambered surface shape, and the surface of the clamping block is provided with anti-skid patterns.
The cambered surface-shaped clamping blocks can increase the contact area with the asphalt container, the stress is more uniform, the friction force is improved, and the friction force can be further improved by the surface anti-skid patterns, so that a better clamping and fixing effect is achieved.
Further, a threaded hole is formed in the clamping block, an external thread is formed in one end of the push rod and is in threaded connection with the clamping block, and the other end of the push rod is abutted to the inclined surface and is provided with a round angle.
The clamp splice can be dismantled with the push rod to with changing different clamp splice according to different pitch containers, let the shape and size of clamp splice laminate pitch container more, promote the fixed effect of centre gripping. The butt end of push rod and inclined plane has the fillet, can let the atress more even.
Further, positioning mechanism still includes fixing base and fastening bolt, the fixing base sets up in the holding ring outside, and is equipped with two symmetrically, fastening bolt and fixing base threaded connection, and the tip can with holding ring outer wall butt.
After the fixed ring is rotated, the clamping blocks clamp and fix the container, at the moment, the fastening bolts can be rotated to enable the end parts of the fastening bolts to be abutted on the outer wall of the positioning ring, the positioning ring is fastened from two sides, the positioning ring is prevented from rotating, and the clamping and fixing stability is ensured.
Further, the fixing base side is equipped with articulated seat, articulated seat rotationally sets up, and one side has seted up the arc recess, be equipped with the internal thread in the arc recess, and can cover and establish on fastening bolt.
After the fastening bolt is screwed to lock the positioning ring, the hinging seat can be rotated to enable the arc-shaped groove cover of the hinging seat to be arranged on the fastening bolt, and the internal threads are overlapped with the threads of the fastening bolt, so that the fastening bolt cannot rotate, and the locking effect is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.
FIG. 1 is a top view of an asphalt toughness testing apparatus according to an embodiment of the present utility model;
FIG. 2 is a front view of a fastening bolt of the asphalt toughness testing apparatus shown in FIG. 1;
reference numerals:
11-slide rails, 12-clamp blocks and 13-push rods;
the device comprises a 21-positioning ring, a 22-pushing block, a 23-fixing seat, a 24-fastening bolt and a 25-hinging seat;
31-hydraulic cylinder, 32-driving rack and 33-driven rack.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
Referring to fig. 1 and 2, the utility model provides an asphalt viscosity and toughness experimental instrument, which comprises a clamping mechanism, a positioning mechanism and a driving mechanism, wherein the clamping mechanism and the positioning mechanism can be driven by the driving mechanism to position and clamp and fix the center of an asphalt container on a workbench.
Specifically, fixture includes slide rail 11 and clamp splice 12, and a plurality of slide rails 11 set up on the workstation around the circumference of container, and all radially set up along it, all are equipped with sliding connection's clamp splice 12 on the slide rail 11, and clamp splice 12 outwards one side all is equipped with push rod 13. The positioning mechanism comprises a positioning ring 21 and push blocks 22, the positioning ring 21 is rotatably arranged on the workbench, the center of the positioning ring is coincident with the center of a clamp of the stretching device, the push blocks 22 are uniformly arranged on the inner side of the positioning ring 21 around the circumferential direction, one side of each push block 22, far away from the positioning ring 21, is provided with an inclined surface, one end of each inclined surface is far away from the positioning ring than the other end, and the inclined surface is in butt joint with one end of each push rod 13, far away from the clamping block 12.
The driving mechanism comprises a hydraulic cylinder 31, a driving rack 32 and a driven rack 33, wherein the hydraulic cylinder 31 is fixedly arranged and connected with the driving rack 32, can drive the driving rack 32 to move along the axial direction, and the driven rack 33 is circumferentially arranged on the positioning ring 21 and is meshed with the driving rack 32. When the asphalt container clamping device is used, the driving rack 32 is driven to axially move through the hydraulic cylinder 31, so that the driven rack 33 and the positioning ring 21 are driven to rotate, the push rod 13 can be pushed to axially move under the action of the inclined plane, the clamping block 12 slides on the sliding rail 11 and clamps and fixes the asphalt container from multiple directions, and the clamping block 12 can also push the asphalt container to enable the center of the asphalt container to be aligned with the center of a clamp of the stretching device, so that the clamping is prevented from being askew.
Further, the end of the clamping block 12 far away from the push rod 13 is in a cambered surface shape, and the surface is provided with anti-skid patterns. The cambered surface shape can laminate the container surface better, increases area of contact to promote frictional force, and the antiskid line also can promote frictional force, thereby has promoted the fixed effect of container centre gripping. The clamp splice 12 is close to one side of push rod 13 and has seted up the screw hole, and the one end of push rod 13 is equipped with the external screw thread to with clamp splice 12 threaded connection, the other end and inclined plane butt and rounding. Through threaded connection, can enough conveniently dismantle, can connect again firmly, can change the clamp splice 12 that corresponds according to the container of different sizes after dismantling to guarantee the fixed effect of centre gripping. The round corner end contacts with the inclined plane, so that the stress is more uniform.
Further, the positioning mechanism further comprises a fixing seat 23 and fastening bolts 24, the fixing seat 23 is fixedly arranged on the workbench outside the positioning ring 21, two fastening bolts 24 penetrate through the fixing seat 23 and are in threaded connection with the fixing seat, and the end part of each fastening bolt can be abutted against the outer wall of the positioning ring 21. After the fixing ring is rotated, the clamping block 12 clamps and fixes the container, at the moment, the fastening bolt 24 can be rotated to enable the end part of the fastening bolt to be abutted on the outer wall of the positioning ring, the positioning ring 21 is locked from two sides, the positioning ring 21 is prevented from rotating, and the clamping and fixing stability is ensured.
The fixing base 23 side is equipped with articulated seat 25, and articulated seat 25 rotationally sets up on the workstation, and one side offered the arc recess with fastening bolt 24 looks adaptation, is equipped with the internal thread in the arc recess, and the arc recess can be covered and establish on fastening bolt 24. After the fastening bolt 24 is screwed to lock the positioning ring 21, the hinging seat 25 can be rotated to enable the arc-shaped groove cover to be arranged on the fastening bolt 24, the internal threads are overlapped with the threads of the fastening bolt, so that the fastening bolt cannot rotate, and the locking effect is further improved.
The working principle of the asphalt viscosity and toughness testing instrument is as follows: the asphalt container is placed on a workbench, the hydraulic cylinder 31 is started to drive the positioning ring 21 to rotate through the driving rack 32 and the driven rack 33, and the inclined surface of the push block 22 drives the push rod 13 to axially move, so that the clamping block 12 moves on the sliding rail 11 and is attached to the surface of the container, and clamping and fixing are completed. After the positioning ring 21 stops rotating, the fastening bolt 24 can be screwed to further lock the positioning ring 21, and the hinge seat 25 is rotated to fix the fastening bolt 24. After the fixing of the asphalt container is completed, the tensile test can be started.
By using the asphalt viscosity and toughness testing instrument, the asphalt container can be clamped from multiple directions through the clamping blocks, a good fixing effect is achieved, the asphalt container is prevented from being pulled up to be suspended during stretching, and the accuracy of test data is improved. And simultaneously clamping the asphalt container from a plurality of directions, the asphalt container with inaccurate placement position can be pushed, the center of the asphalt container is ensured to coincide with the center of the clamp of the stretching device, and the clamping is prevented from being askew.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (5)
1. An asphalt viscosity and toughness testing instrument is characterized in that: comprises a clamping mechanism, a positioning mechanism and a driving mechanism;
The clamping mechanism comprises sliding rails and clamping blocks, a plurality of sliding rails are arranged on the workbench around the circumference of the container and are radially arranged along the sliding rails, the sliding rails are provided with the clamping blocks which are in sliding connection, and one ends, far away from each other, of the clamping blocks are provided with push rods;
The positioning mechanism comprises a positioning ring and push blocks, the positioning ring is rotatably arranged on the workbench, the push blocks are uniformly arranged on the inner side of the positioning ring around the circumferential direction, one side of each push block, which is far away from the positioning ring, is provided with an inclined surface, one end of each inclined surface is far away from the positioning ring than the other end of each inclined surface, and the inclined surface is abutted with one end of each push rod, which is far away from the clamping block;
The driving mechanism comprises a hydraulic cylinder, a driving rack and a driven rack, wherein the hydraulic cylinder is connected with the driving rack, and the driven rack is arc-shaped, is circumferentially arranged on the positioning ring and is meshed with the driving rack.
2. The asphalt toughness testing apparatus according to claim 1, wherein: the clamp splice is the cambered surface form in the one end that keeps away from the push rod, and the surface is equipped with anti-skidding line.
3. The asphalt toughness testing apparatus according to claim 2, wherein: the clamping block is provided with a threaded hole, one end of the push rod is provided with an external thread and is in threaded connection with the clamping block, and the other end of the push rod is abutted to the inclined plane and is provided with a round angle.
4. The asphalt toughness testing apparatus according to claim 1, wherein: the positioning mechanism further comprises a fixing seat and fastening bolts, wherein the fixing seat is arranged on the outer side of the positioning ring and symmetrically provided with two fixing seats, the fastening bolts are in threaded connection with the fixing seat, and the end parts of the fastening bolts can be abutted against the outer wall of the positioning ring.
5. The asphalt toughness testing apparatus according to claim 4, wherein: the fixing base side is equipped with articulated seat, articulated seat rotationally sets up, and one side has seted up the arc recess, be equipped with the internal thread in the arc recess, and can cover and establish on fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322387376.XU CN221039066U (en) | 2023-09-04 | 2023-09-04 | Asphalt viscosity and toughness testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322387376.XU CN221039066U (en) | 2023-09-04 | 2023-09-04 | Asphalt viscosity and toughness testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221039066U true CN221039066U (en) | 2024-05-28 |
Family
ID=91174991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322387376.XU Active CN221039066U (en) | 2023-09-04 | 2023-09-04 | Asphalt viscosity and toughness testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221039066U (en) |
-
2023
- 2023-09-04 CN CN202322387376.XU patent/CN221039066U/en active Active
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