CN110864963A - Pavement wear resistance test device - Google Patents
Pavement wear resistance test device Download PDFInfo
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- CN110864963A CN110864963A CN201911204002.1A CN201911204002A CN110864963A CN 110864963 A CN110864963 A CN 110864963A CN 201911204002 A CN201911204002 A CN 201911204002A CN 110864963 A CN110864963 A CN 110864963A
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- connecting frame
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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Abstract
The invention discloses a road surface wear resistance test device, which comprises: a first base frame provided with an opening for allowing the test wheel to partially penetrate out to contact with the road surface; the second base frame comprises an upright post, a fixed mounting plate and a movable connecting frame, the upright post is fixedly arranged on the first base frame, the movable connecting frame is connected to the upright post in a sliding manner, and the test wheel is arranged on the movable connecting frame; the measuring piece is used for measuring the distance change between the fixed mounting plate and the movable connecting frame; a first driving member. In the test process, the test wheel sinks along with the abrasion of the road surface, so that the distance between the fixed mounting plate and the movable connecting frame is changed, and the distance difference is measured to represent the abrasion resistance of the road surface; the test can be carried out on the road surface, the test environment can be formed by means of the actual climate environment, the artificial environment and the like, the environment of the road surface in the actual use process is simulated more accurately, and therefore a more accurate test result is obtained.
Description
Technical Field
The invention relates to the technical field of highway tests, in particular to a pavement wear resistance test device.
Background
The wear resistance is one of the important use indexes of the road surface, and the friction force between the vehicle tire and the road surface is a direct power source for vehicle movement, so that the road surface has to have excellent anti-skid performance and long-term wear resistance. If the pavement is not wear-resistant, the surface layer material is loosened and peeled off, so that water permeates into the pavement material, and finally the pavement is damaged in a flaky manner.
The prior art discloses a concrete wear resistance test device, which comprises a test bench and a tire clamping unit. The test bed comprises a test groove for bearing a concrete test piece, a base, a motor and a spring; the tire clamping unit is arranged above the test groove and used for clamping a tire; the tire braking unit is used to limit the rolling of the tire. In the test process, a test piece is placed in a test groove, and the test groove realizes reciprocating motion under the combined action of the elasticity of a motor and the elasticity of a spring, so that the abrasion test of the tire on the concrete test piece is realized.
However, the concrete wear resistance test device can only sample to form a concrete sample during concrete construction, the concrete sample is placed in the test groove to be tested in the laboratory, and the weight difference of the concrete sample is measured to obtain parameters representing the wear resistance of the concrete sample, so that the test process is only limited to a sampling test and cannot carry out a field test on a formed pavement, the test environment cannot be simulated more accurately, and the test result is not accurate enough.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem of overcoming the defect that the test result is not accurate enough due to the fact that the on-site test cannot be carried out on the wear resistance of the road surface in the prior art, and provides the road surface wear resistance test device.
A road surface wear resistance test device comprises:
the test wheel comprises a first base frame, a second base frame and a test wheel part, wherein the first base frame is provided with an opening allowing the test wheel part to penetrate out to be in contact with the road surface;
the second base frame is arranged on the first base frame and comprises an upright post, a fixed mounting plate and a movable connecting frame, the upright post is fixedly arranged on the first base frame, the movable connecting frame is connected to the upright post in a sliding mode, the test wheel is arranged on the movable connecting frame, and the fixed mounting plate is arranged above the movable connecting frame;
one end of the measuring piece is fixedly connected with the fixed mounting plate, and the other end of the measuring piece is not higher than the highest position of the movable connecting frame and is used for measuring the distance change between the fixed mounting plate and the movable connecting frame;
the first driving piece is arranged on the first base frame, connected with the test wheel and used for driving the test wheel to rotate.
Further, the movable connecting frame comprises a counterweight component connected with the movable connecting frame, and the counterweight component is used for applying different acting forces to the movable connecting frame.
Further, the counterweight assembly comprises a plurality of counterweights and a pressure sensor arranged on the movable connecting frame, wherein the counterweights apply acting force to the movable connecting frame through counterweight mounting rods penetrating through the fixed mounting plate and fixed on the movable connecting frame.
Further, the first base frame comprises a fixed frame and a movable base plate, and the movable base plate is arranged on the fixed frame
The second driving piece moves along the fixed frame under the action of the second driving piece.
Further, the gear rack is arranged on the fixed frame, and the gear is arranged at the output end of the second driving piece and is meshed with the gear rack.
Further, the device also comprises an electromagnetic feeder, wherein an output port of the electromagnetic feeder faces to the test wheel, and the abrasive is output to the road surface below the test wheel through the electromagnetic feeder.
Further, the road surface heating device comprises a heating element, wherein the heating element is arranged on one side, facing the road surface, of the movable substrate and is used for heating the road surface.
Furthermore, the road temperature detection device further comprises an infrared probe, wherein the infrared probe is arranged on one side, facing the road surface, of the movable substrate and is used for detecting the temperature of the road surface.
Furthermore, the device also comprises a guide rail and a sliding block, wherein the guide rail is fixed on the fixed frame, and the sliding block is sleeved on the guide rail and fixed on the movable base plate.
Furthermore, the movable connecting frame comprises a connecting beam and supporting vertical plates which are symmetrically arranged, the supporting vertical plates are respectively positioned on two sides of the test wheel and connected with the test wheel, and the connecting beam is connected with the supporting vertical plates and connected with the stand columns in a sliding manner.
The technical scheme of the invention has the following advantages:
1. the invention provides a pavement wear resistance test device, which comprises: the test wheel comprises a first base frame, a second base frame and a test wheel part, wherein the first base frame is provided with an opening allowing the test wheel part to penetrate out to be in contact with the road surface; the second base frame is arranged on the first base frame and comprises an upright post, a fixed mounting plate and a movable connecting frame, the upright post is fixedly arranged on the first base frame, the movable connecting frame is connected to the upright post in a sliding mode, the test wheel is arranged on the movable connecting frame, and the fixed mounting plate is arranged above the movable connecting frame; one end of the measuring piece is fixedly connected with the fixed mounting plate, and the other end of the measuring piece is not higher than the highest position of the movable connecting frame and is used for measuring the distance change between the fixed mounting plate and the movable connecting frame; the first driving piece is arranged on the first base frame, connected with the test wheel and used for driving the test wheel to rotate. According to the pavement wear resistance testing device with the structure, the first base frame can be placed on the pavement to enable the testing wheel to be in contact with the pavement, the testing wheel sinks along with the abrasion of the pavement in the testing process and is attached to the pavement, so that the distance between the fixed mounting plate and the movable connecting frame is changed, the distance between the fixed mounting plate and the movable connecting frame before the test is finished and the distance between the fixed mounting plate and the movable connecting frame after the test is finished are sequentially measured, and therefore the distance difference is obtained to represent the wear resistance of the pavement; the test can be directly carried out on the road surface, the test environment can be formed by means of the actual climate environment, the artificial environment and the like, the environment of the road surface in the actual use process is more accurately simulated, and therefore a more accurate test result is obtained.
2. The invention provides a pavement wear resistance test device, wherein a counterweight component comprises a plurality of counterweights and a pressure sensor arranged on a movable connecting frame, wherein the counterweights apply acting force to the movable connecting frame through counterweight mounting rods which penetrate through a fixed mounting plate and are fixed on the movable connecting frame. The road surface wear resistance test device of this structure through being provided with balancing weight and pressure sensor, can increase the heavy burden of test wheel and obtain the concrete numerical value of heavy burden to survey the influence to the wear resistance on road surface under the different pressure circumstances.
3. The invention provides a pavement wear resistance test device, wherein a first base frame comprises a fixed frame and a movable base plate, and the movable base plate moves along the fixed frame under the action of a second driving piece. The road surface wear resistance test device with the structure has the advantages that the fixed frame and the movable base plate are arranged, the movable base plate can drive the test wheel to move on the road surface, and the influence of the test wheel on the wear resistance of the road surface under the normal driving condition is simulated.
4. The invention provides a pavement wear resistance test device which further comprises an electromagnetic feeder, wherein an output port of the electromagnetic feeder faces to a test wheel, and abrasive materials are output to a pavement below the test wheel through the electromagnetic feeder. The road surface wear resistance test device with the structure is provided with the electromagnetic feeder, and abrasive materials can be continuously added between the test wheel and the road surface, so that the test wheel continuously abrades the road surface to simulate a test environment.
5. The invention provides a pavement wear resistance test device which further comprises a heating element, wherein the heating element is arranged on one side, facing the pavement, of the movable substrate and used for heating the pavement. The road surface temperature detection device is characterized by further comprising an infrared probe, wherein the infrared probe is arranged on one side, facing the road surface, of the movable base plate and used for detecting the temperature of the road surface. According to the pavement wear resistance test device with the structure, the heating element is arranged, so that the pavement can be heated, and the influence on the wear resistance of the pavement under different temperature conditions can be measured; and the infrared probe is arranged, so that the specific heating value of the heating element heated on the road surface can be measured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a pavement wear resistance testing device provided by the invention;
FIG. 2 is a right side view of the pavement wear resistance testing apparatus shown in FIG. 1;
FIG. 3 is a bottom view of the pavement wear resistance testing apparatus shown in FIG. 1;
description of reference numerals:
11-fixed frame, 12-movable base plate, 121-opening;
21-upright column, 22-fixed mounting plate, 231-connecting beam, 232-supporting vertical plate and 24-linear bearing;
3-test wheel, 31-connecting shaft;
4-a measuring member;
51-a first driving member, 52-a second driving member, 53-a mounting frame plate, 541-a transmission belt, 542-a transmission wheel, 543-a first bearing seat;
61-a pressure sensor, 62-a balancing weight, 63-a balancing weight mounting rod and 64-a supporting bulge;
71-gear, 72-rack;
8-an electromagnetic feeder;
91-heating element, 92-infrared probe;
101-guide rail, 102-slide block.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The road surface wear resistance test device shown in fig. 1 to 3 comprises a first base frame, a second base frame, a test wheel 3, a measuring member 4, a first driving member 51, a second driving member 52, a counterweight component, a gear 71, a rack 72, an electromagnetic feeder 8, a heating member 91, an infrared probe 92, a guide rail 101 and a slide block 102.
As shown in fig. 1 and 3, the first base frame in this embodiment includes a fixed frame 11 and a movable base plate 12, and the movable base plate 12 moves along the fixed frame 11 by a second driving member 52. Wherein the movable base plate 12 is provided with an opening 121 for allowing the test wheel 3 to partially come out to contact with the road surface, and the test wheel 3 is tested by directly contacting the road surface through the opening 121. Through being provided with fixed frame 11 and movable base plate 12, movable base plate 12 can drive test wheel 3 and remove on the road surface to the influence of test wheel 3 to the wear resistance on the road surface under the normal driving condition.
Specifically, the second drive member 52 is a second motor or the like. The second driving member 52 is fixedly disposed on the movable substrate 12, and a gear 71 is fixed at an output end of the second driving member 52, and a rack 72 is disposed along a side of the fixed frame 11 close to the output end of the second driving member 52, wherein the gear 71 is engaged with the rack 72. When the output end of the second driving member 52 is operated, the gear 71 is driven to rotate, and the gear 71 moves on the rack 72, so that the linear movement of the movable base plate 12 is realized.
As shown in fig. 1 and 2, the second base frame is mounted on the first base frame, and specifically includes a vertical column 21, a fixed mounting plate 22 and a movable connecting frame. Wherein the stand 21 symmetry is fixed to be located on the movable base plate 12, and swing joint frame sliding connection is on stand 21 and the swing joint shelf location has test wheel 3, and fixed mounting panel 22 is installed in the top of swing joint frame and fixed connection on stand 21.
Referring to fig. 1 and fig. 2 specifically, the movable connection frame in this embodiment includes a connection cross beam 231 and support vertical plates 232 symmetrically arranged, the support vertical plates 232 are respectively located at two sides of the test wheel 3 and connected to the test wheel 3, and the connection cross beam 231 is connected to the support vertical plates 232 and is slidably connected to the upright post 21 through the linear bearing 24. The end of the supporting vertical plate 232 close to one side of the test wheel 3 is provided with a U-shaped groove, and the opening 121 of the U-shaped groove faces the connecting shaft 31 of the test wheel 3 and is inserted into the connecting shaft 31 of the test wheel 3.
As shown in fig. 1, the measuring member 4 is a dial indicator, one end of the measuring member 4 is fixedly connected with the fixed mounting plate 22, and the other end is a telescopic end, and the telescopic end is not higher than the highest position of the connecting beam 231 of the movable connecting frame and is used for measuring the distance change between the fixed mounting plate 22 and the movable connecting frame. Namely, the measuring position of the telescopic end on the movable connecting frame is between the lowest position of the supporting vertical plate 232 and the highest position of the connecting cross beam 231, and comprises the lowest position and the highest position. Specifically, the distance between the fixed mounting plate 22 and the movable mounting bracket can be measured by fixing the measurement positions of the telescopic end of the measuring member 4 and the connecting beam 231 of the movable mounting plate or manually aligning the measurement positions of the telescopic end of the measuring member 4 and the connecting beam 231 of the movable mounting plate.
As shown in fig. 1 and 2, the first driving member 51 is a first motor or others. The first driving member 51 is fixedly arranged on the mounting frame plate 53, wherein the mounting frame plate 53 covers the second driving member 52 and is connected with the test wheel 3 through the belt transmission assembly to drive the test wheel 3 to rotate. Specifically, the belt drive assembly includes drive belt 541, drive wheel 542, first bearing and first bearing seat 543, drive wheel 542 locates respectively on the output of first driving piece 51 and the connecting axle 31 of test wheel 3, drive belt 541 overlaps and establishes and connects on drive wheel 542, first bearing seat 543 sets firmly on supporting riser 232 and is located supporting riser 232 and locates between the drive wheel 542 on the connecting axle 31 of test wheel 3, first bearing overlaps and locates on the connecting axle 31 of test wheel 3 and is located first bearing seat 543.
The weight assembly in this embodiment is connected to the articulating frame for applying different forces to the articulating frame. Referring specifically to fig. 1 and 2, the counterweight assembly includes a plurality of counterweights 62 disposed on the movable connecting frame, and a pressure sensor 61 connected to the counterweights 63, wherein the counterweights 62 apply an acting force to the movable connecting frame through counterweight mounting rods 63 penetrating through the fixed mounting plate 22 and fixed on the movable connecting frame. Wherein counter weight installation pole 63 is equipped with support protrusion 64 along its circumference, and support protrusion 64 is located the one side that fixed mounting plate 22 kept away from test wheel 3, and the balancing weight 62 cover is located counter weight installation pole 63 and is located support protrusion 64 to balancing weight 62 is through the application of force on support protrusion 64 and the application of force on counter weight installation pole 63, makes pressure sensor 61 obtain the heavy burden of balancing weight 62 application of force in test wheel 3.
Through being provided with balancing weight 62 and pressure sensor 61, the heavy burden of multiplicable test wheel 3 obtains the concrete numerical value of heavy burden to survey the influence to the wear resistance on road surface under the different pressure circumstances.
As shown in fig. 1, the output port of the electromagnetic feeder 8 in this embodiment faces the test wheel 3, and an abrasive material such as diamond abrasive is output onto the road surface below the test wheel 3 through the electromagnetic feeder 8, so as to increase the friction force between the two, thereby causing the road surface to be worn. By providing the electromagnetic feeder 8, it is possible to constantly add abrasive material between the test wheel 3 and the road surface so that the test wheel 3 continuously wears the road surface to simulate the test environment.
As shown in fig. 3, the heating member 91 in the present embodiment is a heating pipe, and the heating member 91 is provided on the side of the movable substrate 12 facing the road surface for heating the road surface. As shown in fig. 3, the infrared probe 92 in this embodiment is provided on the side of the movable substrate 12 facing the road surface, and is used for detecting the temperature of the road surface.
By arranging the heating member 91, the road surface can be heated, so that the influence on the wear resistance of the road surface under different temperature conditions can be measured; and by providing an infrared probe 92, it is possible to measure a specific heating value of the heating member 91 heated to the road surface.
As shown in fig. 1 and 3, the guide rails 101 are guide shafts, and the guide rails 101 arranged symmetrically are arranged on the fixed frame 11 along the moving direction of the movable substrate 12; and the slide block 102 is sleeved on the guide rail 101 and fixed on the movable base plate 12. When the second driving member 52 drives to move the movable substrate 12, the guide rail 101 and the slider 102 are provided to improve the moving accuracy of the movable substrate 12.
According to the pavement wear resistance test device, the first base frame can be placed on a pavement to enable the test wheel 3 to be in contact with the pavement, the test wheel 3 is in friction with the pavement under the action of the first driving piece 51 and the second driving piece 52, the test wheel 3 sinks along with the abrasion of the pavement in the test process and is attached to the pavement, so that the distance between the fixed mounting plate 22 and the movable connecting frame is changed, the distance between the fixed mounting plate and the movable connecting frame before the test and the distance between the fixed mounting plate and the movable connecting frame after the test are finished are sequentially measured, and the distance difference is obtained to represent the wear resistance of the pavement; the test can be directly carried out on the road surface, the test environment can be formed by means of the actual climate environment, the artificial environment and the like, the environment of the road surface in the actual use process is more accurately simulated, and therefore a more accurate test result is obtained.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The utility model provides a road surface wear resistance test device which characterized in that includes:
a first base frame provided with an opening (121) allowing a part of the test wheel (3) to pass through to contact with the road surface;
the second pedestal is arranged on the first pedestal and comprises an upright post (21), a fixed mounting plate (22) and a movable connecting frame, the upright post (21) is fixedly arranged on the first pedestal, the movable connecting frame is connected to the upright post (21) in a sliding manner, the movable connecting frame is provided with the test wheel (3), and the fixed mounting plate (22) is arranged above the movable connecting frame;
one end of the measuring piece (4) is fixedly connected with the fixed mounting plate (22), and the other end of the measuring piece is not higher than the highest position of the movable connecting frame and is used for measuring the distance change between the fixed mounting plate (22) and the movable connecting frame;
the first driving piece (51) is arranged on the first base frame, connected with the test wheel (3) and used for driving the test wheel (3) to rotate.
2. The device for testing the wear resistance of a road surface according to claim 1, further comprising a counterweight component connected with the movable connecting frame, wherein the counterweight component is used for applying different acting forces to the movable connecting frame.
3. The device for testing the wear resistance of the pavement according to claim 2, wherein the weight assembly comprises a plurality of weights (62) and a pressure sensor (61) arranged on the movable connecting frame, wherein the weights (62) exert the acting force on the movable connecting frame through weight mounting rods (63) penetrating through the fixed mounting plate (22) and fixed on the movable connecting frame.
4. A pavement wear resistance testing device according to any one of claims 1-3, wherein the first base frame comprises a fixed frame (11) and a movable base plate (12), and the movable base plate (12) moves along the fixed frame (11) under the action of the second driving member (52).
5. The pavement wear resistance test device according to claim 4, further comprising a gear (71) and a rack (72), wherein the rack (72) is arranged on the fixed frame (11), and the gear (71) is arranged at the output end of the second driving member (52) and is meshed with the rack (72).
6. A pavement wear resistance testing device according to any one of claims 1-3, further comprising an electromagnetic feeder (8), wherein the output port of said electromagnetic feeder (8) faces said testing wheel (3), and abrasive is output onto said pavement under said testing wheel (3) through said electromagnetic feeder (8).
7. The pavement wear resistance test device according to claim 4, further comprising a heating element (91), wherein the heating element (91) is disposed on a side of the movable substrate (12) facing the pavement for heating the pavement.
8. The pavement wear resistance test device according to claim 4, further comprising an infrared probe (92), wherein the infrared probe (92) is disposed on a side of the movable substrate (12) facing the pavement for detecting the temperature of the pavement.
9. The road surface wear resistance test device according to claim 4, characterized by further comprising a guide rail (101) and a slide block (102), wherein the guide rail (101) is fixed on the fixed frame (11), and the slide block (102) is sleeved on the guide rail (101) and fixed on the movable base plate (12).
10. The pavement wear resistance test device according to any one of claims 1-3, wherein the movable connecting frame comprises connecting beams (231) and symmetrically arranged supporting vertical plates (232), the supporting vertical plates (232) are respectively located at two sides of the test wheel (3) and connected to the test wheel (3), and the connecting beams (231) are connected with the supporting vertical plates (232) and slidably connected with the upright columns (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911204002.1A CN110864963A (en) | 2019-11-29 | 2019-11-29 | Pavement wear resistance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911204002.1A CN110864963A (en) | 2019-11-29 | 2019-11-29 | Pavement wear resistance test device |
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| Publication Number | Publication Date |
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| CN110864963A true CN110864963A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911204002.1A Pending CN110864963A (en) | 2019-11-29 | 2019-11-29 | Pavement wear resistance test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790952A (en) * | 2021-10-12 | 2021-12-14 | 安徽施耐德成套电气有限公司 | Abrasion test equipment for electric power fitting and working method thereof |
| CN113804570A (en) * | 2021-11-16 | 2021-12-17 | 中建安装集团有限公司 | Cement-based material surface detection device and detection method thereof |
-
2019
- 2019-11-29 CN CN201911204002.1A patent/CN110864963A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790952A (en) * | 2021-10-12 | 2021-12-14 | 安徽施耐德成套电气有限公司 | Abrasion test equipment for electric power fitting and working method thereof |
| CN113804570A (en) * | 2021-11-16 | 2021-12-17 | 中建安装集团有限公司 | Cement-based material surface detection device and detection method thereof |
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