CN116735477A - Device and method for testing interlayer bonding shear strength of regenerated pavement - Google Patents
Device and method for testing interlayer bonding shear strength of regenerated pavement Download PDFInfo
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- CN116735477A CN116735477A CN202310417093.7A CN202310417093A CN116735477A CN 116735477 A CN116735477 A CN 116735477A CN 202310417093 A CN202310417093 A CN 202310417093A CN 116735477 A CN116735477 A CN 116735477A
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- 238000012360 testing method Methods 0.000 title claims abstract description 109
- 239000011229 interlayer Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003550 marker Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 2
- 238000011069 regeneration method Methods 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims 4
- 239000000853 adhesive Substances 0.000 claims 2
- 230000001070 adhesive effect Effects 0.000 claims 2
- 239000010426 asphalt Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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Abstract
The application relates to the technical field of shear strength testing, and discloses a device and a method for testing interlayer bonding shear strength of a regenerated pavement. According to the application, during testing, the test result is drawn on paper, so that the test result is observed intuitively and rapidly, the longer the drawing line is, the stronger the surface shear strength is, and the convenience of use is further improved.
Description
Technical Field
The application relates to the technical field of shear strength testing, in particular to a device and a method for testing interlayer bonding shear strength of a regenerated pavement.
Background
Shear strength, also known as shear strength, is the ultimate strength produced when a material shears, reflecting the ability of the material to resist shear sliding, and is numerically equal to the tangential stress value at the shear plane, i.e., the ratio of the shear force developed at the shear plane to the area of failure. In the case of double shears, the breaking area is twice the cross-sectional area of the test piece, and the asphalt pavement is usually required to be subjected to shear strength test.
The conventional device for testing the interlayer bonding shear strength of the regenerated pavement is not visual enough in testing, the shear strength of the asphalt pavement can be calculated only by calculating various values, and in addition, when the asphalt pavement sample is fixed, the pavement is required to be fixed independently, so that the time for testing the asphalt pavement sample is wasted, the use effect is reduced, and therefore, the device and the method for testing the interlayer bonding shear strength of the regenerated pavement are required to be redesigned to solve the problems in the background technology.
Disclosure of Invention
The application aims to solve the defects in the prior art, and provides a device and a method for testing the interlayer bonding shear strength of a regenerated pavement.
In order to achieve the above purpose, the present application adopts the following technical scheme:
the utility model provides a bonding shear strength testing arrangement between regeneration road surface layer, includes testboard and U type frame, two vertical fixed mounting in testboard top both sides center departments of U type frame, and U type frame horizontal side below level is provided with the joint board, joint board below level is provided with the diaphragm, and the equal vertical fixed mounting in diaphragm top both ends has flexible loop bar, two flexible loop bar top equal fixed mounting in joint board bottom, and two flexible loop bar surfaces have all cup jointed first spring, every first spring both ends are fixed mounting respectively in diaphragm top and joint board bottom, the vertical fixed mounting in joint board bottom has the limiting plate, and limiting plate one side has seted up the circular slot that runs through, annular channel and circular slot intercommunication have been seted up to the limiting plate inside, and the inside rotation of circular slot is provided with three chuck that grabs, three chuck external fixation cup joints the ring and slide in annular channel inside, and annular channel and ring are used for carrying out spacing to three chuck that grabs, three chuck internal fixation has the mark, vertical fixed mounting in diaphragm bottom one end has the fixed plate, and fixed mounting has two fixed plate and fixed plate have fixed establishment of paper, two fixed test board one side are equipped with fixed test board, and fixed test board one side is equipped with fixed test specimen.
As a further technical scheme of the application, the top of the transverse edge of the U-shaped frame is vertically provided with a hydraulic telescopic rod, an output shaft of the hydraulic telescopic rod is arranged at the center of the top of the connecting plate, and two ends of the bottom of the test bench are provided with supporting legs.
As a further technical scheme of the application, sliding grooves are formed in opposite side surfaces of two vertical edges of the U-shaped frame, sliding blocks are respectively and slidably arranged in the two sliding grooves, and two ends of the connecting plate are respectively and fixedly arranged on opposite side surfaces of the two sliding blocks.
As a further technical scheme of the application, a connecting rod is vertically and fixedly arranged at the center of the bottom of the transverse plate, a test plate is fixedly arranged at the tail end of the connecting rod, and a transverse groove penetrating through the center of the top of the test table is formed.
As a further aspect of the present application, the first fixing mechanism includes: the pressing plate, pressing plate one end and fixed plate butt, and fixed plate opposite side both ends equal fixed mounting have L template, every the horizontal limit of L template is equal fixed mounting has the spring lever, and two other both ends of spring lever are fixed mounting respectively in pressing plate one side both ends.
As a further aspect of the present application, the second fixing mechanism includes: the two clamping plates respectively slide at the top of the test bench and are symmetrically arranged, and two ends of the top of the test bench are provided with penetrating strip-shaped notches.
As a further technical scheme of the application, the two sliding plates are connected, the two sliding plates respectively slide at two ends of the bottom of the test bench, the tops of the two sliding plates are fixedly provided with the convex blocks, the two convex blocks respectively pass through the two strip-shaped notches and are respectively and fixedly arranged at the bottoms of the two clamping plates, the two sides of the bottom of the test bench are fixedly provided with the U-shaped limiting rods, and the surfaces of the transverse edges of the two U-shaped limiting rods respectively slide in the two sliding plates.
As a further technical scheme of the application, a screw rod is rotatably arranged at the bottom of the test bench, a gear is rotatably arranged at one side of the test bench, one end of the screw rod and one side of the gear are fixedly connected with the same connecting shaft, the surface of the screw rod is connected inside the two sliding plates through threads, and the directions of the threads of the screw rod connected with the two sliding plates are opposite.
As a further technical scheme of the application, one vertical edge of the U-shaped frame vertically slides and is provided with a strip-shaped plate, the side surface of the strip-shaped plate is uniformly and fixedly arranged on a plurality of convex teeth at equal intervals in a straight line, the upper part of the strip-shaped plate is provided with teeth, the gear is meshed with the convex teeth, the top of the strip-shaped plate is fixedly provided with a folding rod, and the other end of the folding rod is fixedly arranged on one side of the connecting plate.
The application discloses a use method of a regenerated pavement interlayer bonding shear strength testing device, which comprises the following steps:
s1: firstly, placing a sample on the top of a test bench, then pulling a pressing plate to separate from a fixed plate, and then placing paper on the side surface of the fixed plate;
s2: the connecting plate is driven to move downwards through the hydraulic telescopic rod, the connecting plate moves downwards to drive the limiting plate, the folding rod, the telescopic sleeve rod and the first spring to move downwards, the limiting plate moves downwards to drive the annular groove and the annular ring to move downwards, the annular groove and the annular ring move downwards to drive the three-grabbing chuck and the marker pen to move downwards, the telescopic sleeve rod and the first spring move downwards to drive the transverse plate to move downwards, the transverse plate moves downwards to drive the connecting rod and the fixing plate to move downwards, and the fixing plate moves to drive paper to move downwards, so that the paper and the marker pen initially move together;
s3: the folding rod moves to drive the strip-shaped plate and the convex teeth to move downwards, when the convex teeth are meshed with the gears, the gears are driven to rotate, the screws are driven to drive the two sliding plates to move, the two sliding plates are driven to move, the two clamping plates are driven to move to fix the sample, then the connecting rod moves to drive the test plate to move downwards and contact the sample, when the test plate just contacts the sample, the test plate, the connecting rod and the transverse plate slowly descend, the moving speed of the connecting plate is inconvenient, and the downward moving speed of the marking pen is further greater than the downward moving speed of paper on the fixing plate, so that a line can be drawn on the paper;
s4: the longer the drawing line, the larger the expansion path of the expansion loop bar and the expansion path, the stronger the further shear strength, because the test board and the test sample contact and then want to move downwards, the larger the elasticity is, the more likely the test board cuts the test sample by the elasticity generated by the first spring when the connecting board moves downwards, the lower the elasticity is, the test board and the transverse board can move downwards until the test sample is completely cut, at the moment, the drawing line is stopped, the paper can be visually observed after being taken down, otherwise, the shorter the drawing line is, the worse the shear strength is indicated.
The beneficial effects of the application are as follows:
firstly, the marking pen, the fixing plate and the limiting plate are arranged, so that a test result can be drawn on paper during testing, the test result is visual and quick to observe, the longer the drawing line is, the stronger the surface shear strength is, and the convenience of use is further improved;
secondly, the clamping device can automatically clamp the sample before testing through the arrangement of the clamping plate, the gear and the strip-shaped plate, so that the condition that a worker is required to fix the sample by extra manual operation is avoided, and further the efficiency and the use synchronism of the device during testing are improved.
Drawings
FIG. 1 is a schematic diagram of a device and a method for testing the interlayer bonding shear strength of a regenerated pavement;
FIG. 2 is a schematic view showing the structure of a device and a method for testing the interlayer bonding shear strength of a regenerated pavement according to the present application;
FIG. 3 is a schematic view of a U-shaped frame structure of a device and a method for testing the interlayer bonding shear strength of a regenerated pavement according to the application;
FIG. 4 is a schematic view of a joint plate and a connection structure thereof for a device and a method for testing the interlayer bonding shear strength of a regenerated pavement according to the present application;
FIG. 5 is a schematic diagram of a clamping plate and its connection structure for a device and a method for testing the interlayer bonding shear strength of a regenerated pavement according to the present application;
FIG. 6 is a schematic diagram of a separation structure of a limiting plate and a three-grip chuck of a device and a method for testing the interlayer bonding shear strength of a regenerated pavement according to the present application;
FIG. 7 is a schematic cross-sectional view of a device and method for testing the interlayer bond shear strength of a regenerated pavement according to the present application;
fig. 8 is an enlarged schematic view of the portion a in fig. 4.
In the figure: 1. a test bench; 2. a U-shaped frame; 3. a hydraulic telescopic rod; 4. a strip-shaped plate; 5. folding the rod; 6. a gear; 7. a sample; 8. a clamping plate; 9. a test board; 10. a connecting rod; 11. a splice plate; 12. a chute; 13. a slide block; 14. a transverse groove; 15. a bar-shaped notch; 16. a slide plate; 17. a screw rod; 18. a U-shaped limit rod; 19. a cross plate; 20. a limiting plate; 21. a telescopic loop bar; 22. a first spring; 23. convex teeth; 24. a three-grip chuck; 25. marking pen; 26. an annular groove; 27. a circular ring; 28. a pressing plate; 29. an L-shaped plate; 30. a spring rod; 31. and a fixing plate.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1-8, a regenerated pavement interlayer bonding shear strength testing device comprises a test bench 1 and a U-shaped frame 2, two vertical edges of the U-shaped frame 2 are vertically and fixedly installed at the centers of two sides of the top of the test bench 1, a joint plate 11 is horizontally arranged below the transverse edge of the U-shaped frame 2, a transverse plate 19 is horizontally arranged below the joint plate 11, telescopic loop bars 21 are vertically and fixedly installed at two ends of the top of the transverse plate 19, the tops of the two telescopic loop bars 21 are fixedly installed at the bottom of the joint plate 11, first springs 22 are sleeved on the surfaces of the two telescopic loop bars 21, two ends of each first spring 22 are fixedly installed at the top of the transverse plate 19 and the bottom of the joint plate 11 respectively, a limiting plate 20 is vertically and fixedly installed at one side of the limiting plate 20, a circular groove penetrating through the bottom of the limiting plate 20 is formed, an annular groove 26 is formed inside and is communicated with the circular groove, a three-grabbing chuck 24 is rotatably arranged inside the circular groove, a circular ring 27 is fixedly arranged outside the three-grabbing chuck 24 and slides inside the annular groove 26, the three-grabbing chuck 24 is fixedly arranged at the inner side of the circular groove 24, the three-grabbing chuck 24 is fixedly arranged at the two ends of the circular groove 24, the three-grabbing chuck 31 is fixedly arranged at the two sides of the paper, a paper surface is fixedly arranged at the two sides of the top of the test bench, a paper surface is fixedly arranged at the two ends 31, a paper surface is fixedly arranged at the two ends of the paper surface, a test bench 31, a paper is fixedly arranged at one side of the paper surface is fixedly, and is fixedly arranged at the top of the paper surface is fixedly arranged at the paper surface 31, and is fixedly arranged at one side 31, and is fixedly and is fixed at one and 31.
Referring to fig. 1-2, in a preferred embodiment, a hydraulic telescopic rod 3 is vertically installed at the top of the transverse edge of a U-shaped frame 2, an output shaft of the hydraulic telescopic rod 3 is installed at the center of the top of a connecting plate 11, supporting legs are installed at two ends of the bottom of a test board 1, sliding grooves 12 are formed in opposite sides of two vertical edges of the U-shaped frame 2, sliding blocks 13 are sliding in the two sliding grooves 12, two ends of the connecting plate 11 are fixedly installed on opposite sides of the two sliding blocks 13 respectively, a connecting rod 10 is vertically and fixedly installed at the center of the bottom of a transverse plate 19, a test board 9 is fixedly installed at the tail end of the connecting rod 10, a through transverse groove 14 is formed in the center of the top of the test board 1, the connecting plate 11 is limited through the sliding grooves 12 and the sliding blocks 13, stability of the connecting plate 11 during movement is effectively guaranteed, and a test sample 7 is a test sample of an asphalt pavement.
Referring to fig. 6-8, in a preferred embodiment, the first securing mechanism includes: the clamp plate 28, clamp plate 28 one end and fixed plate 31 butt, and the equal fixed mounting in fixed plate 31 opposite side both ends have L template 29, and the equal fixed mounting in the horizontal limit of every L template 29 has spring bar 30, and two other both ends of spring bar 30 are fixed mounting respectively in clamp plate 28 one side both ends, through the setting of first fixed establishment for fix the paper, and fixed convenience only need pulling clamp plate 28 and fixed plate 31 separation, can take off or place the paper.
Referring to fig. 2-7, in a preferred embodiment, the second securing mechanism includes: clamp plate 8 and slide 16, clamp plate 8 has two, and two clamp plates 8 slide respectively in test bench 1 top and symmetry setting, test bench 1 top both ends all are offered and are run through bar notch 15, slide 16 has even, and two slide 16 slide respectively in test bench 1 bottom both ends, two slide 16 tops all fixed mounting have the lug, and two lugs pass two bar notch 15 respectively and fixed mounting respectively in two clamp plate 8 bottoms, test bench 1 bottom both sides equal fixed mounting has U type gag lever post 18, and two U type gag lever post 18 horizontal limit surface slides respectively in two slide 16 insidely, test bench 1 bottom rotation installs lead screw 17, and test bench 1 one side rotates and installs gear 6, lead screw 17 one end and gear 6 one side fixedly connected with same connecting axle, lead screw 17 surface passes through threaded connection in two slide 16 insidely, and lead screw 17 connects two slide 16's screw opposite directions, one of them vertical sliding of them has strip 4, and strip 4 side is equidistant evenly fixed mounting in protruding tooth 23, a plurality of strip 4 upper portions and rolling over tooth 23, and tooth 23 are installed to the strip 7 in the positive and the tooth 5, the sample is to the test bench 7 is carried out to the sample, the sample can be connected with the sample to the test bench 7, the sample is to the test bench is arranged to the test bench 7, the sample is connected to the sample is fixed to the sample to the other end.
From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects: firstly, a sample 7 is placed on the top of a test bench 1, a pressing plate 28 and a fixed plate 31 are pulled to separate, then, paper can be placed on the side surface of the fixed plate 31, a connecting plate 11 is driven to move downwards through a hydraulic telescopic rod 3, a limiting plate 20, a folding rod 5, a telescopic sleeve rod 21 and a first spring 22 are driven to move downwards through the downward movement of the connecting plate 11, a limiting plate 20 and a circular ring 27 are driven to move downwards through the downward movement of the limiting plate 20, a three-grabbing chuck 24 and a marker pen 25 are driven to move downwards through the downward movement of the circular ring 26 and the circular ring 27, a transverse plate 19 is driven to move downwards through the downward movement of the telescopic sleeve rod 21 and the first spring 22, a connecting rod 10 and the fixed plate 31 are driven to move downwards through the downward movement of the transverse plate 19, so that the paper and the marker pen 25 can move together initially, a strip-shaped plate 4 and a convex tooth 23 are driven to move downwards through the movement of the folding rod 5, when the convex teeth 23 are meshed with the gear 6, the gear 6 is driven to rotate, the gear 6 rotates to drive the screw rod 17 to rotate, the screw rod 17 rotates to drive the two sliding plates 16 to move, the two sliding plates 16 move to drive the clamping plates 8 to move, the two clamping plates 8 move to fix the sample 7 (and the convex teeth 23 after being fixed continuously move downwards but are not contacted with the gear 6), then the connecting rod 10 moves to drive the test plate 9 to move downwards and contact with the sample 7, when the test plate 9 just contacts with the sample 7, the test plate 9, the connecting rod 10 and the transverse plate 19 slowly descend, the moving speed of the connecting plate 11 is inconvenient, the further downward moving speed of the marking pen 25 can be greater than the downward moving speed of paper on the fixed plate 31, so that the line drawing can be carried out on the paper, the longer the line drawing is needed to be described, the larger the telescopic path of the telescopic sleeve rod 21 and the telescopic path is larger, the stronger the shear strength is, because the test board 9 and the sample 7 are contacted and then want to move downwards, the larger the elasticity is, the more likely the test board 9 cuts the sample 7 by the elasticity generated by the first spring 22 when the joint board 11 moves downwards, until the sample 7 is completely cut, the lower the elasticity generated by the first spring 22 can lead the test board 9 and the transverse board 19 to move downwards, at this time, the drawing is stopped, the visual observation can be performed by taking down the paper, otherwise, the shorter the drawing is, the worse the shear strength is indicated, and the use effect of the device is further improved.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the application (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the application, the steps may be implemented in any order and there are many other variations of the different aspects of the application as described above, which are not provided in detail for the sake of brevity.
The present application is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present application should be included in the scope of the present application.
Claims (10)
1. The utility model provides a bonding shear strength testing arrangement between regeneration road surface layer, includes testboard (1) and U type frame (2), its characterized in that, two vertical limit vertical fixed mounting in testboard (1) top both sides center department of U type frame (2), and U type frame (2) horizontal limit below level is provided with joint board (11), joint board (11) below level is provided with diaphragm (19), and diaphragm (19) top both ends are all vertical fixed mounting have telescopic handle (21), two telescopic handle (21) top all fixed mounting in joint board (11) bottom, and two telescopic handle (21) surfaces have all cup jointed first spring (22), every first spring (22) both ends are fixed mounting respectively in diaphragm (19) top and joint board (11) bottom, joint board (11) bottom vertical fixed mounting has limiting plate (20), and limiting plate (20) one side has seted up the circular slot that runs through, limiting plate (20) inside has seted up circular slot (26) and groove intercommunication, and inside are rotated in the circular slot (24) and are provided with three ring groove (24) and are used for holding in the inside three ring groove (24) and are held in the inside annular groove (24) and are held in the fixed ring groove (24) and are held in the inside (27), the utility model discloses a test bench, including diaphragm (19), fixed plate (31) is installed to vertical fixed mounting of diaphragm (19) bottom one end, and fixed plate (31) one side is provided with paper, fixed plate (31) one side both ends all are equipped with the first fixed establishment that is used for fixed paper, sample (7) have been placed at testboard (1) top, and are equipped with the second fixed establishment that is used for fixed sample (7) on testboard (1).
2. The device for testing the bonding shear strength between the regenerated pavement layers according to claim 1, wherein the hydraulic telescopic rod (3) is vertically arranged at the top of the transverse edge of the U-shaped frame (2), an output shaft of the hydraulic telescopic rod (3) is arranged at the center of the top of the connecting plate (11), and supporting legs are arranged at two ends of the bottom of the test bench (1).
3. The device for testing the interlayer bonding shear strength of the regenerated pavement according to claim 2, wherein sliding grooves (12) are formed in opposite side surfaces of two vertical edges of the U-shaped frame (2), sliding blocks (13) are respectively and slidably arranged in the two sliding grooves (12), and two ends of the connecting plate (11) are fixedly arranged on opposite side surfaces of the two sliding blocks (13) respectively.
4. The device for testing the bonding shear strength between the regenerated pavement layers according to claim 1, wherein a connecting rod (10) is vertically and fixedly arranged at the center of the bottom of the transverse plate (19), a testing plate (9) is fixedly arranged at the tail end of the connecting rod (10), and a transverse groove (14) penetrating through the center of the top of the testing table (1) is formed.
5. The apparatus for testing the interlayer adhesive shear strength of a recycled road surface according to claim 1, wherein the first fixing mechanism comprises: the clamp plate (28), clamp plate (28) one end and fixed plate (31) butt, and fixed plate (31) opposite side both ends equal fixed mounting have L template (29), every L template (29) horizontal limit equal fixed mounting has spring rod (30), and two other both ends of spring rod (30) are fixed mounting respectively in clamp plate (28) one side both ends.
6. The apparatus for testing the interlayer adhesive shear strength of a recycled road surface according to claim 1, wherein the second fixing mechanism comprises: the two clamping plates (8) are respectively arranged at the top of the test bench (1) in a sliding mode, the two clamping plates (8) are symmetrically arranged, and two ends of the top of the test bench (1) are respectively provided with a penetrating strip-shaped notch (15).
7. The device for testing the interlayer bonding shear strength of the regenerated pavement according to claim 6, wherein the number of the sliding plates (16) is one, the two sliding plates (16) are respectively slid at two ends of the bottom of the test bench (1), the tops of the two sliding plates (16) are fixedly provided with the protruding blocks, the two protruding blocks respectively penetrate through the two strip-shaped notches (15) and are respectively fixedly arranged at the bottoms of the two clamping plates (8), the two sides of the bottom of the test bench (1) are respectively fixedly provided with the U-shaped limiting rods (18), and the transverse edge surfaces of the two U-shaped limiting rods (18) are respectively slid inside the two sliding plates (16).
8. The device for testing the bonding shear strength between the regenerated pavement layers according to claim 7, wherein a screw rod (17) is rotatably arranged at the bottom of the test table (1), a gear (6) is rotatably arranged at one side of the test table (1), one end of the screw rod (17) and one side of the gear (6) are fixedly connected with the same connecting shaft, the surface of the screw rod (17) is connected inside two sliding plates (16) through threads, and the directions of the threads of the screw rod (17) for connecting the two sliding plates (16) are opposite.
9. The device for testing the bonding shear strength between the regenerated pavement layers according to claim 8, wherein one vertical edge of the U-shaped frame (2) vertically slides and is provided with a strip-shaped plate (4), the side surface of the strip-shaped plate (4) is uniformly and fixedly arranged on a plurality of convex teeth (23) at equal intervals in a straight line, the upper part of the strip-shaped plate (4) is provided with teeth, the gear (6) is meshed with the convex teeth (23), the top of the strip-shaped plate (4) is fixedly provided with a folding rod (5), and the other end of the folding rod (5) is fixedly arranged on one side of the connecting plate (11).
10. The method of using a device for testing the interlaminar bond shear strength of a recycled pavement according to claims 1-9, comprising the following steps:
s1: firstly, placing a sample (7) on the top of a test bench (1), then pulling a pressing plate (28) to separate from a fixed plate (31), and then placing paper on the side surface of the fixed plate (31);
s2: the connecting plate (11) is driven to move downwards through the hydraulic telescopic rod (3), the connecting plate (11) moves downwards to drive the limiting plate (20), the folding rod (5), the telescopic sleeve rod (21) and the first spring (22) to move downwards, the limiting plate (20) moves downwards to drive the annular groove (26) and the annular ring (27) to move downwards, the annular groove (26) and the annular ring (27) move downwards to drive the three-grabbing chuck (24) and the marker (25) to move downwards, the telescopic sleeve rod (21) and the first spring (22) move downwards to drive the transverse plate (19) to move downwards, the transverse plate (19) moves downwards to drive the connecting rod (10) and the fixing plate (31) to move downwards, and the fixing plate (31) moves to drive paper to move downwards so that the paper and the marker (25) move together when being preliminary.
S3: the folding rod (5) moves to drive the strip-shaped plate (4) and the convex teeth (23) to move downwards, when the convex teeth (23) are meshed with the gear (6), the gear (6) rotates to drive the screw rod (17) to rotate, the screw rod (17) rotates to drive the two sliding plates (16) to move, the two sliding plates (16) move to drive the clamping plates (8) to move, the two clamping plates (8) move to fix the sample (7), then the connecting rod (10) moves to drive the test plate (9) to move downwards and contact the sample (7), when the test plate (9) just contacts the sample (7), the test plate (9), the connecting rod (10) and the transverse plate (19) slowly descend, and the moving speed of the connecting plate (11) is inconvenient, and the moving speed of the marking pen (25) downwards is further greater than the moving speed of paper on the fixing plate (31), so that line drawing can be performed on the paper;
s4: the longer the drawing line, the larger the expansion path of the expansion loop rod (21) and the expansion path, the stronger the further shear strength, because the test board (9) and the sample (7) are contacted and then want to move downwards, the larger the elasticity is, the more likely the test board (9) cuts the sample (7) until the sample (7) is cut completely, the elasticity generated by the first spring (22) can enable the test board (9) and the transverse board (19) to move downwards, at the moment, the drawing line is stopped, the paper can be visually observed after being taken down, and conversely, the shorter the drawing line is, the worse the shear strength is indicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310417093.7A CN116735477A (en) | 2023-04-19 | 2023-04-19 | Device and method for testing interlayer bonding shear strength of regenerated pavement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310417093.7A CN116735477A (en) | 2023-04-19 | 2023-04-19 | Device and method for testing interlayer bonding shear strength of regenerated pavement |
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| CN116735477A true CN116735477A (en) | 2023-09-12 |
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| CN202310417093.7A Withdrawn CN116735477A (en) | 2023-04-19 | 2023-04-19 | Device and method for testing interlayer bonding shear strength of regenerated pavement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117168813A (en) * | 2023-11-02 | 2023-12-05 | 南通市嘉诚机械有限公司 | Bearing high temperature performance test equipment |
| CN117514143A (en) * | 2023-12-26 | 2024-02-06 | 西北核技术研究所 | Geophysical well logging measuring device |
-
2023
- 2023-04-19 CN CN202310417093.7A patent/CN116735477A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117168813A (en) * | 2023-11-02 | 2023-12-05 | 南通市嘉诚机械有限公司 | Bearing high temperature performance test equipment |
| CN117168813B (en) * | 2023-11-02 | 2024-03-08 | 南通市嘉诚机械有限公司 | Bearing high temperature performance test equipment |
| CN117514143A (en) * | 2023-12-26 | 2024-02-06 | 西北核技术研究所 | Geophysical well logging measuring device |
| CN117514143B (en) * | 2023-12-26 | 2024-05-31 | 西北核技术研究所 | Geophysical well logging measuring device |
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Application publication date: 20230912 |