Asphalt concrete cutting and sampling device

Abstract

The asphalt concrete cutting and sampling device comprises a rectangular shell with an opening in the bottom, a vertical cutting mechanism and a horizontal cutting mechanism, the vertical cutting mechanism and the horizontal cutting mechanism are arranged in the rectangular shell, the vertical cutting mechanism comprises a lifting plate, an electric telescopic rod and a double-shaft motor, and rotating shafts are installed on two output shafts of the double-shaft motor; the horizontal cutting mechanism comprises two parallel double-end lead screws, first nut seats and second nut seats, the two ends of the double-end lead screws are sleeved with the first nut seats and the second nut seats, linear cutting knives are installed between the two first nut seats and between the two second nut seats, and cutting edges of the two linear cutting knives are oppositely arranged. The cutting and sampling device disclosed by the utility model can ensure that a concrete test block can be completely taken out, so that the integrity of a sample is ensured, and the test efficiency and the detection accuracy are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt concrete, and in particular relates to an asphalt concrete cutting and sampling device. Background Art

[0002] Asphalt concrete cutting sampling is a systematic process aimed at obtaining representative asphalt concrete samples for subsequent performance testing and quality assessment. According to the experimental requirements and road conditions, sampling is selected at the center or edge of the road surface. The specific sampling process is as follows: first, determine the area of ​​the road surface to be cut according to the purpose and needs, and mark the cutting position on the road surface at the sampling location; then align the road surface cutting machine vertically with the road surface cutting position, slowly press the saw blade to the required depth, carefully push forward, and lift the saw blade after the required length is reached. After all four sides are sawed, use a pickaxe or shovel to carefully remove the sample; but since asphalt concrete is a flexible material with low tensile strength, when the sampling specimen is long, the bottom of the specimen cannot be effectively cut off due to the small thickness of the specimen, and the specimen often breaks in the middle or is damaged at the four corners due to uneven force during the extraction process. Therefore, an asphalt concrete cutting sampling device that is easy to operate and has high sampling integrity should be provided. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an asphalt concrete cutting sampling device in view of the deficiencies in the above-mentioned prior art, which has a simple structure and a reasonable design. The cutting sampling device can ensure that the concrete test block can be taken out completely, thereby ensuring the integrity of the sample and improving the test efficiency and detection accuracy.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an asphalt concrete cutting and sampling device, characterized in that it includes a rectangular shell with an opening at the bottom, a vertical cutting mechanism and a horizontal cutting mechanism arranged inside the rectangular shell, the vertical cutting mechanism includes a lifting plate slidably installed inside the rectangular shell, an electric telescopic rod for driving the lifting plate to slide up and down, and a double-axis motor installed on the lifting plate, a rotating shaft is installed on the two output shafts of the double-axis motor, a circular cutting knife is installed on the end of the rotating shaft, a circular cutting knife installation cavity is opened in the two oppositely arranged side walls of the rectangular shell, and a clearance groove for the rotating shaft to pass through is opened on the inner side wall of the circular cutting knife installation cavity, the horizontal cutting mechanism includes two parallel double-headed screw rods, a first nut seat and a second nut seat mounted on both ends of the double-headed screw rods, the two double-headed screw rods are driven by two driving motors respectively, and a linear cutting knife is installed between the two first nut seats and between the two second nut seats, and the cutting blades of the two linear cutting knives are arranged relatively.

[0005] The above-mentioned asphalt concrete cutting and sampling device is characterized in that handles are provided on the outer sides of two oppositely arranged side walls of the rectangular shell.

[0006] The above-mentioned asphalt concrete cutting and sampling device is characterized in that the number of the electric telescopic rods is two or four, the two or four electric telescopic rods are synchronously controlled by the controller, the dual-axis motor is controlled by the controller, and the two drive motors are synchronously controlled by the controller.

[0007] Compared with the prior art, the utility model has the following advantages:

[0008] 1. The utility model sets a rectangular shell with an opening at the bottom, and installs a vertical cutting mechanism and a horizontal cutting mechanism inside the rectangular shell. In actual use, under the support of the rectangular shell, the vertical cutting mechanism can realize vertical cutting on the asphalt concrete layer, and then the horizontal cutting mechanism can realize separation between the bottom of the sample to be taken and the asphalt concrete layer. The structure is ingenious, the operation is simple, and the use effect is good.

[0009] 2. The vertical cutting mechanism of the utility model includes a lifting plate, an electric telescopic rod, a dual-axis motor, a rotating shaft and a circular cutting knife. During actual installation, a circular cutting knife installation cavity is provided in two oppositely arranged side walls of the rectangular shell, and a clearance groove for the rotating shaft to pass through is provided on the inner side wall of the circular cutting knife installation cavity. Therefore, when the electric telescopic rod drives the lifting plate to slide up and down in the rectangular shell, it can drive the circular cutting knife to move up and down in the circular cutting knife installation cavity. When performing vertical cutting on the asphalt concrete layer, the inferior arc part at the bottom of the circular cutting knife will extend out of the circular cutting knife installation cavity, and the dual-axis motor drives the two rotating shafts to rotate at the same time, and the two rotating shafts drive the two circular cutting knives to rotate at the same time, thereby achieving the purpose of vertical cutting on the asphalt concrete layer.

[0010] 3. The horizontal cutting mechanism of the utility model includes two double-ended screw rods arranged in parallel, with a first nut seat and a second nut seat mounted on both ends of the double-ended screw rod, and a linear cutting knife is installed between the two first nut seats and between the two second nut seats, and the cutting edges of the two linear cutting knives are arranged relatively to each other. In actual use, when the two double-ended screw rods are driven by two driving motors respectively, the two linear cutting knives can be driven to approach or move away from each other. It should be noted that the axes of the two double-ended screw rods are located in the same horizontal plane, and the cutting edges of the two linear cutting knives are also located in the same horizontal plane. When performing vertical cutting and manual hole expansion, the horizontal cutting mechanism must be in the initial state, that is, the two linear cutting knives are in the state of being separated as far as possible.

[0011] 4. The utility model has a simple structure, reasonable design, high sampling integrity, and is easy to promote and apply.

[0012] In summary, the utility model has a simple structure and a reasonable design. The cutting sampling device can ensure that the concrete test block can be completely taken out, thereby ensuring the integrity of the sample and improving the test efficiency and detection accuracy.

[0013] The present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the vertical cutting state of the utility model.

[0015] Figure 2 It is a schematic diagram of the use state of the utility model after manual hole expansion.

[0016] Figure 3 for Figure 2 AA section view.

[0017] Figure 4 It is a schematic diagram of the connection relationship between the rectangular shell and the horizontal cutting mechanism of the utility model.

[0018] Figure 5 It is a schematic diagram of the connection relationship between the linear cutting knife and two first nut seats of the utility model.

[0019] Description of reference numerals:

[0020] 1—rectangular housing; 1-1—circular cutting blade installation cavity; 1-2—giving way groove;

[0021] 1-3—handle; 2—electric telescopic rod; 3—lifting plate;

[0022] 4—Dual-axis motor; 5—Rotating shaft; 6—Circular cutting blade;

[0023] 7—driving motor; 8—double-ended screw rod; 9-1—first nut seat;

[0024] 9-2—second nut seat; 10—linear cutting knife; 10-1—cutting edge;

[0025] 11—Asphalt concrete layer; 12—Annular expansion groove; 13—Sample to be taken. DETAILED DESCRIPTION

[0026] like Figures 1 to 5As shown, the utility model comprises a rectangular shell 1 with an opening at the bottom, a vertical cutting mechanism and a horizontal cutting mechanism arranged inside the rectangular shell 1, the vertical cutting mechanism comprises a lifting plate 3 slidably installed inside the rectangular shell 1, an electric telescopic rod 2 for driving the lifting plate 3 to slide up and down, and a double-axis motor 4 installed on the lifting plate 3, a rotating shaft 5 is installed on the two output shafts of the double-axis motor 4, a circular cutting knife 6 is installed on the end of the rotating shaft 5, and a circular cutting knife installation is opened in the two oppositely arranged side walls of the rectangular shell 1. The circular cutting knife installation cavity 1-1 has an inner wall provided with a clearance groove 1-2 for the rotating shaft 5 to pass through. The horizontal cutting mechanism includes two parallel double-headed screws 8, a first nut seat 9-1 and a second nut seat 9-2 mounted on both ends of the double-headed screw 8. The two double-headed screws 8 are driven by two driving motors 7 respectively. A linear cutting knife 10 is installed between the two first nut seats 9-1 and between the two second nut seats 9-2. The cutting edges 10-1 of the two linear cutting knives 10 are arranged relatively.

[0027] In this embodiment, a rectangular shell 1 with an opening at the bottom is provided, and a vertical cutting mechanism and a horizontal cutting mechanism are installed inside the rectangular shell 1. In actual use, under the support of the rectangular shell 1, the vertical cutting mechanism can be used to achieve vertical cutting on the asphalt concrete layer 11, and then the horizontal cutting mechanism can be used to separate the bottom of the sample 1 to be taken from the asphalt concrete layer 11. The structure is ingenious, the operation is simple, and the use effect is good.

[0028] In this embodiment, the vertical cutting mechanism includes a lifting plate 3, an electric telescopic rod 2, a dual-axis motor 4, a rotating shaft 5 and a circular cutting knife 6. During actual installation, a circular cutting knife installation cavity 1-1 is provided in the two oppositely arranged side walls of the rectangular shell 1, and a clearance groove 1-2 for the rotating shaft 5 to pass through is provided on the inner side wall of the circular cutting knife installation cavity 1-1. Therefore, when the electric telescopic rod 2 drives the lifting plate 3 to slide up and down in the rectangular shell 1, it can drive the circular cutting knife 6 to move up and down in the circular cutting knife installation cavity 1-1. When vertical cutting is performed on the asphalt concrete layer 11, the inferior arc portion at the bottom of the circular cutting knife 6 will extend out of the circular cutting knife installation cavity 1-1, and the dual-axis motor 4 simultaneously drives the two rotating shafts 5 to rotate, and the two rotating shafts 5 simultaneously drive the two circular cutting knives 6 to rotate, thereby achieving the purpose of vertical cutting on the asphalt concrete layer 11.

[0029] In this embodiment, the horizontal cutting mechanism includes two double-headed screw rods 8 arranged in parallel, and a first nut seat 9-1 and a second nut seat 9-2 are mounted on both ends of the double-headed screw rod 8. A linear cutting knife 10 is installed between the two first nut seats 9-1 and between the two second nut seats 9-2, and the cutting edges 10-1 of the two linear cutting knives 10 are arranged relatively to each other. In actual use, when the two double-headed screw rods 8 are driven by two driving motors 7 respectively, the two linear cutting knives 10 can be driven to approach or move away from each other. It should be noted that the axes of the two double-headed screw rods 8 are located in the same horizontal plane, and the cutting edges 10-1 of the two linear cutting knives 10 are also located in the same horizontal plane. When performing vertical cutting and manual hole expansion, the horizontal cutting mechanism must be in the initial state, that is, the two linear cutting knives 10 are in the state of being separated as far as possible.

[0030] like Figure 1 and Figure 2 As shown, in this embodiment, handles 11 are provided on the outer sides of two oppositely arranged side walls of the rectangular housing 1 .

[0031] In this embodiment, the number of the electric telescopic rods 2 is two or four, the two or four electric telescopic rods 2 are synchronously controlled by the controller, the dual-axis motor 4 is controlled by the controller, and the two drive motors 7 are synchronously controlled by the controller.

[0032] In actual use, such as Figure 1 As shown, first, the cutting sampling device is placed on the asphalt concrete layer 11, and under the support of the rectangular shell 1, the vertical cutting mechanism is used to perform the first vertical cutting to form two parallel transverse cutting seams. After that, the cutting sampling device is horizontally rotated 90°, and the vertical cutting mechanism is used to perform the second vertical cutting to form two parallel longitudinal cutting seams. The two transverse cutting seams and the two vertical cutting seams together form a tic-tac-toe cutting seam; secondly, on the basis of the tic-tac-toe cutting seam, an artificial groove expansion is performed to form an annular expansion groove 12, and the annular expansion groove 12 must be able to accommodate the wall thickness of the rectangular shell 1 and the horizontal cutting mechanism in the initial state; then, as shown in FIG. Figure 2 and Figure 3 As shown, the cutting sampling device is placed in the annular expansion groove 12. At this time, the two linear cutting knives 10 of the horizontal cutting mechanism in the initial state are respectively located in two linear side grooves arranged opposite to each other in the annular expansion groove 12, and the two double-headed screw rods 8 are respectively located in the other two linear side grooves arranged opposite to each other in the annular expansion groove 12; finally, as shown in FIG. Figure 4As shown, the controller synchronously controls two driving motors 7, and the two driving motors 7 simultaneously drive two double-headed screws 8 to rotate, and the two double-headed screws 8 simultaneously drive two linear cutting knives 10 to move simultaneously and approach each other, and the two linear cutting knives 10 are used to jointly realize the separation of the bottom of the sample 13 to be taken and the asphalt concrete layer 11; the cutting sampling device is easy to automatically control, has a high sampling integrity, and is easy to promote and apply.

[0033] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. An asphalt concrete cutting sampling device, characterized in that: The invention comprises a rectangular shell (1) with an opening at the bottom, a vertical cutting mechanism and a horizontal cutting mechanism arranged inside the rectangular shell (1), the vertical cutting mechanism comprising a lifting plate (3) slidably mounted inside the rectangular shell (1), an electric telescopic rod (2) for driving the lifting plate (3) to slide up and down, and a double-axis motor (4) mounted on the lifting plate (3), a rotating shaft (5) being mounted on both output shafts of the double-axis motor (4), a circular cutting knife (6) being mounted on the end of the rotating shaft (5), and a circular cutting knife mounting cavity (1-1) being provided in two oppositely arranged side walls of the rectangular shell (1). ), a clearance groove (1-2) for the rotating shaft (5) to pass through is provided on the inner side wall of the circular cutting knife installation cavity (1-1), the horizontal cutting mechanism comprises two double-headed screw rods (8) arranged in parallel, a first nut seat (9-1) and a second nut seat (9-2) mounted on both ends of the double-headed screw rod (8), the two double-headed screw rods (8) are driven by two driving motors (7) respectively, a linear cutting knife (10) is installed between the two first nut seats (9-1) and between the two second nut seats (9-2), and the cutting edges (10-1) of the two linear cutting knives (10) are arranged relative to each other.

2. An asphalt concrete cutting sampling device according to claim 1, characterized in that: Handles (11) are provided on the outer sides of two oppositely arranged side walls of the rectangular housing (1).

3. An asphalt concrete cutting sampling device according to claim 1, characterized in that: The number of the electric telescopic rods (2) is two or four, the two or four electric telescopic rods (2) are synchronously controlled by a controller, the dual-axis motor (4) is controlled by a controller, and the two drive motors (7) are synchronously controlled by the controller.

Images