Cold-mix asphalt mixture generating device

Abstract

The utility model discloses a cold-mix asphalt mixture generating device which comprises a fixed supporting frame, an asphalt weighing tank is arranged on the inner side of the fixed supporting frame, and a plurality of connecting plates are sequentially arranged on the side face of the asphalt weighing tank at equal intervals in the circumferential direction of the asphalt weighing tank. A weight sensor assembly is arranged between each connecting plate and the upper end of the fixed supporting frame, a first through hole is further formed in each connecting plate, a plurality of second through holes are formed in the upper end of the fixed supporting frame, and a screw is further arranged between each first through hole and the corresponding second through hole in a penetrating mode. When equipment is not used, the asphalt weighing tank and the fixed supporting frame can be fixed through installation and fastening of the screw rod, the influence of the weight of the asphalt weighing tank on the weight sensor assembly is avoided or reduced, the service life of the weight sensor assembly is indirectly prolonged, and the follow-up weighing accuracy is indirectly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt mixture production equipment, in particular to a cold mix asphalt mixture generating device. Background Art

[0002] Cold mix asphalt is an asphalt mixture made by mixing crushed stone of a certain grade with emulsified asphalt and additives. In the production process, asphalt weighing equipment is needed to control the amount of asphalt. During the production of cold mix asphalt, the asphalt is first pumped from the asphalt tank to the asphalt weighing equipment through a supply pump, and then transported to the mixing equipment by a spray pump after being weighed and monitored by the asphalt weighing equipment.

[0003] In the prior art, one type of asphalt weighing equipment is to achieve asphalt weighing by connecting an asphalt weighing tank to a support frame via a number of S-shaped tension sensors. For example, the asphalt weighing device disclosed in publication number CN219736537U includes a cylinder, a sealing member, and a first driving member. A discharge port is provided at the bottom of the cylinder, and a tension and pressure detection element is provided between the cylinder and the frame. In its technical solution, the weight of the cylinder and the asphalt inside acts on the tension and pressure detection element, and the asphalt is weighed by the change in the parameters of the tension and pressure detection element. However, in practice, it has been found that although this method can achieve asphalt weighing, when the asphalt weighing device is not in use, the weight of the cylinder does always act on the tension and pressure detection element, causing the tension and pressure detection element to always generate a strain force, which will affect the life of the tension and pressure detection element and the accuracy of subsequent weighing over a long period of time.

[0004] Based on the deficiencies in the prior art, the utility model discloses a cold-mix asphalt mixture generating device, which arranges a plurality of detachable screws between a fixed support frame and an asphalt weighing tank. The screws can be removed during the use of the equipment without affecting the detection of the weight sensor assembly. When the equipment is not in use, the asphalt weighing tank can be fixed to the fixed support frame by installing and tightening the screws, thereby avoiding or reducing the influence of the weight of the asphalt weighing tank on the weight sensor assembly, and indirectly improving the service life of the weight sensor assembly and the accuracy of subsequent weighing. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a cold mix asphalt mixture generating device to solve the technical problems raised in the background technology.

[0006] The utility model provides the following technical solutions:

[0007] A cold-mix asphalt mixture generating device comprises a fixed support frame, an asphalt weighing tank is provided on the inner side of the fixed support frame, an annular connecting seat is coaxially provided on the upper end of the side of the asphalt weighing tank, a plurality of connecting plates are provided on the outer side of the annular connecting seat at equal intervals along its circumference, a weight sensor assembly is provided between each connecting plate and the upper end of the fixed support frame, a first through hole is also provided through each connecting plate, a plurality of second through holes are provided through the upper end of the fixed support frame, and the plurality of second through holes are coaxially provided in a one-to-one correspondence with each first through hole, a screw is also passed through each group of the first through holes and the second through holes, a first fastening nut is adapted for the screw at the lower end of the first through hole, and a second fastening nut is adapted for the screw at the upper end of the second through hole.

[0008] Preferably, the screw rod is further equipped with a third fastening nut at the lower end of the second through hole.

[0009] Preferably, thermal insulation cotton is provided on the outer sides of the asphalt weighing tanks.

[0010] Preferably, the weight sensor assembly includes an S-shaped tensile sensor, the upper end of the S-shaped tensile sensor is connected to the upper end of the fixed support frame through a first connecting member, and the lower end of the S-shaped tensile sensor is connected to the connecting plate through a second connecting member, the first connecting member includes a vertical second screw, the upper end of the second screw is connected to the upper end of the fixed support frame, the lower end of the second screw is provided with a first U-shaped seat, the lower end of the first U-shaped seat is connected to a first joint bearing through a first shaft, and the end of the connecting rod outside the first joint bearing is connected to the upper end of the S-shaped tensile sensor.

[0011] Preferably, the upper end of the fixed support frame is also provided with a third through hole for the second screw to pass through, the second screw is provided with a fourth fastening nut at the upper end of the third through hole, and the second screw is provided with a fifth fastening nut at the lower end of the third through hole.

[0012] Preferably, the second connecting member includes a vertical third screw and a second connecting rod, the lower end of the third screw is connected to the connecting plate, the upper end of the third screw is provided with a second U-shaped seat, the upper end of the second U-shaped seat is connected to the second joint bearing through the second shaft, the upper end of the second connecting rod is connected to the lower end of the S-shaped tension sensor, and the lower end of the second connecting rod is connected to the outer side surface of the second joint bearing, and the connecting plate is also penetrated by a fourth through hole for the third screw to pass through, the third screw is located at the upper end of the fourth through hole and is provided with a sixth fastening nut, and the third screw is located at the lower end of the fourth through hole and is provided with a seventh fastening nut.

[0013] Preferably, a stirring shaft is coaxially arranged inside the asphalt weighing tank, and a plurality of stirring wings are sequentially arranged on the stirring shaft along its axial direction. A driving member for rotating the stirring shaft is also provided at the upper end of the asphalt weighing tank.

[0014] Preferably, the driving member includes a servo motor and a transmission, the output end of the transmission is connected to the upper end of the stirring shaft through a coupling, and the input end of the transmission is connected to the rotating shaft of the servo motor.

[0015] Preferably, a spiral heating tube is coaxially arranged inside the asphalt weighing tank, both ends of the spiral heating tube extend to the upper end surface of the asphalt weighing tank, and both ends of the spiral heating tube are respectively provided with a heat transfer oil inlet flange and a heat transfer oil outlet flange.

[0016] Preferably, an asphalt inlet is provided on the upper end surface of the asphalt weighing tank.

[0017] Preferably, the lower end surface of the asphalt weighing tank is inclined at a certain angle, and an asphalt outlet flange is provided at the lower end of the lower end surface of the asphalt weighing tank.

[0018] Preferably, the lower end surface of the asphalt weighing tank is further provided with a sewage outlet, and a valve is further provided at the sewage outlet.

[0019] Preferably, an asphalt delivery pipe is further provided at the asphalt outlet flange, a second asphalt inlet flange is provided at the input end of the asphalt delivery pipe, a butterfly valve is provided between the asphalt outlet flange and the second asphalt inlet flange, and the butterfly valve is preferably a pneumatic butterfly valve.

[0020] Preferably, an arc-shaped plate is coaxially arranged on the outside of the asphalt conveying pipe, the length direction of the arc-shaped plate is arranged along the length direction of the asphalt conveying pipe, an arc-shaped cavity is coaxially arranged inside the arc-shaped plate, and the two ends of the arc-shaped plate are respectively provided with a second heat transfer oil inlet flange and a second heat transfer oil outlet flange.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The utility model discloses a cold-mix asphalt mixture generating device. A plurality of detachable screw rods are provided between a fixed support frame and an asphalt weighing tank. When the device is in use, the screw rods can be removed without affecting the detection of a weight sensor assembly. When the device is not in use, the asphalt weighing tank and the fixed support frame can be fixed by installing and tightening the screw rods, thereby avoiding or reducing the influence of the weight of the asphalt weighing tank on the weight sensor assembly, and indirectly improving the service life of the weight sensor assembly and the accuracy of subsequent weighing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a structural diagram of the present utility model.

[0025] Figure 2 For this utility model Figure 1 A local enlarged schematic diagram of point A.

[0026] Figure 3 This is a schematic diagram of the internal structure of the asphalt weighing tank of the present utility model.

[0027] Figure 4 This is a schematic diagram of the structure of the asphalt delivery pipe of the present utility model. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] See also Figure 1-4As shown, a cold-mix asphalt mixture generating device includes a fixed support frame 1, an asphalt weighing tank 2 is provided on the inner side of the fixed support frame 1, an annular connecting seat 3 is coaxially provided on the upper end of the side of the asphalt weighing tank 2, and a plurality of connecting plates 4 are provided on the outer side of the annular connecting seat 3 at equal intervals along its circumference, and a weight sensor assembly 5 is provided between each of the connecting plates 4 and the upper end of the fixed support frame 1, and each of the connecting plates 4 is also penetrated by a first through hole up and down, and the upper end of the fixed support frame 1 is also penetrated by a plurality of second through holes coaxially corresponding to each of the first through holes up and down, and a screw 6 is also passed through each group of the first through holes and the second through holes, and the screw 6 is located at the lower end of the first through hole and is adapted to be fitted with a first fastening nut 7, and the screw 6 is located at the upper end of the second through hole and is adapted to be fitted with a second fastening nut 8. The fixed support frame 1 is in the shape of a rectangular frame, and an asphalt weighing tank 2 is suspended inside it through several weight sensor assemblies 5. By setting several detachable screws between the fixed support frame and the asphalt weighing tank, the screws 3 can be removed during the use of the equipment without affecting the detection of the weight sensor assembly; when the equipment is not in use, the asphalt weighing tank 2 is displaced upward for a distance by screwing the first fastening nut 7 and the second fastening nut 8 on the screw, thereby reducing the pulling force of the asphalt weighing tank on the weight sensor assembly due to its own gravity, so that the weight sensor assembly is not subjected to force during non-operating period, indirectly improving the life of the weight sensor assembly and the accuracy of subsequent weighing.

[0031] The screw rod 6 is located at the lower end of the second through hole and is also adapted to be equipped with a third fastening nut 9, so as to further improve the stability when the screw rod 6 is connected to the upper end of the fixed support frame 1.

[0032] The outer sides of the asphalt weighing tanks are respectively provided with thermal insulation cotton, which can achieve thermal insulation of the asphalt inside the asphalt weighing tanks to a certain extent, reducing the influence of the external temperature on the temperature of the asphalt inside the asphalt weighing tanks.

[0033] The weight sensor assembly 5 includes an S-shaped tension sensor 51. The upper end of the S-shaped tension sensor 51 is connected to the upper end of the fixed support frame 1 via a first connecting member, and the lower end of the S-shaped tension sensor 51 is connected to the connecting plate 4 via a second connecting member 53. The first connecting member includes a vertical second screw 54 and a first connecting rod 58. The upper end of the second screw 54 is connected to the upper end of the fixed support frame 1, and the lower end of the second screw 54 is provided with a first U-shaped seat 57. The lower end of the first U-shaped seat 57 is connected to a first spherical bearing 59 via a first shaft 510. The connecting rod end 58 outside the first spherical bearing 59 is connected to the upper end of the S-shaped tension sensor 51. The provision of the first spherical bearing 59 facilitates the adjustment of the force applied to the S-shaped tension sensor 51, so that the S-shaped tension sensor 51 is always in a vertical state, thereby improving detection accuracy.

[0034] The upper end of the fixed support frame 1 is further provided with a third through-hole extending vertically therethrough for the passage of the second screw rod 54. A fourth fastening nut 55 is provided at the upper end of the second screw rod 54 located within the third through-hole, and a fifth fastening nut 56 is provided at the lower end of the second screw rod 54 located within the third through-hole. This allows for adjustment of the height of the second screw rod 54, and thereby the vertical height of the S-shaped tension sensors 51, so that the plurality of S-shaped tension sensors 51 are aligned on the same horizontal plane.

[0035] The second connecting member 53 includes a vertical third screw, the lower end of the third screw is connected to the connecting plate 4, the upper end of the third screw is provided with a second U-shaped seat, the upper end of the second U-shaped seat is connected to a second joint bearing through a second shaft, and the connecting rod end of the second joint bearing is connected to the lower end of the S-shaped tension sensor 51; the connecting plate 4 is also provided with a fourth through hole for the third screw to pass through from top to bottom, the third screw is provided with a sixth fastening nut at the upper end of the fourth through hole, and the third screw is provided with a seventh fastening nut at the lower end of the fourth through hole.

[0036] A stirring shaft 10 is coaxially arranged inside the asphalt weighing tank 2. The upper end of the stirring shaft 10 is connected to the upper end surface of the asphalt weighing tank 2 through a bearing. A plurality of stirring wings 11 are arranged in sequence along the axial direction of the stirring shaft 10. The upper end of the asphalt weighing tank 2 is also provided with a driving member 12 for rotating the stirring shaft 10.

[0037] The drive element 12 includes a servo motor and a transmission. The output of the transmission is connected to the upper end of the stirring shaft 10 via a coupling, and the input of the transmission is connected to the rotating shaft of the servo motor. The rotation of the servo motor can mobilize the stirring shaft 10 and the plurality of stirring wings 11 to rotate, thereby stirring the asphalt inside the asphalt weighing tank 2 and ensuring the fluidity of the asphalt inside the asphalt weighing tank 2.

[0038] A spiral heating tube 13 is coaxially disposed within the asphalt weighing tank 2. Both ends of the spiral heating tube 13 extend to the upper end surface of the asphalt weighing tank 2. A thermal oil inlet flange 14 and a thermal oil outlet flange 15 are provided at each end of the spiral heating tube 13. The thermal oil in the spiral heating tube 13 heats and insulates the asphalt within the asphalt weighing tank 2, ensuring the fluidity and temperature of the asphalt within the asphalt weighing tank 2.

[0039] The upper end surface of the asphalt weighing tank 2 is provided with an asphalt inlet 16. The upper end of the side of the asphalt weighing tank 2 is also provided with a liquid level gauge, which is a float level gauge for controlling the maximum amount of asphalt input into the asphalt weighing tank 2.

[0040] The lower end surface of the asphalt weighing tank 2 is tilted at a certain angle, and the lower end surface of the asphalt weighing tank 2 is provided with an asphalt outlet flange 17 at the lower end. The tilted setting facilitates the output of asphalt from the asphalt outlet flange 17.

[0041] The lower end surface of the asphalt weighing tank 2 is also provided with a sewage outlet 18, and a valve is also provided at the sewage outlet 18. The lower end surface of the asphalt weighing tank 2 is also provided with a temperature sensor for detecting the temperature of the asphalt inside the asphalt weighing tank 2.

[0042] An asphalt delivery pipe 19 is further provided at the asphalt outlet flange 17. A second asphalt inlet flange is provided at the input end of the asphalt delivery pipe 19. A butterfly valve 22 is provided between the asphalt outlet flange 17 and the second asphalt inlet flange. The butterfly valve 22 is preferably a pneumatic butterfly valve.

[0043] A curved plate 20 is coaxially mounted on the outside of the asphalt delivery pipe 19. The length of the curved plate 20 extends along the length of the asphalt delivery pipe 19. A curved cavity is coaxially positioned within the curved plate 20. A second thermal oil inlet flange and a second thermal oil outlet flange 21 are respectively positioned at each end of the curved plate 20. By delivering thermal oil into the curved cavity, the temperature of the asphalt is maintained as it flows within the asphalt delivery pipe 19.

[0044] Furthermore, the outer side surfaces of the asphalt delivery pipe 19 and the arc-shaped plate 20 may be provided with a second thermal insulation cotton.

[0045] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A cold mix asphalt mixture production device, comprising a fixed support frame (1), an asphalt weighing tank (2) is provided inside the fixed support frame (1), and is characterized in that: An annular connecting seat (3) is coaxially provided at the upper end of the side of the asphalt weighing tank (2), and a plurality of connecting plates (4) are arranged in sequence at equal intervals along the circumference of the outer side of the annular connecting seat (3). A weight sensor assembly (5) is respectively provided between each connecting plate (4) and the upper end of the fixed support frame (1). A first through hole is also provided on each connecting plate (4) from top to bottom, and a plurality of second through holes coaxially corresponding to each of the first through holes are also provided on the upper end of the fixed support frame (1). A screw rod (6) is also provided between each group of the first through holes and the second through holes. The screw rod (6) is located at the lower end of the first through hole and is equipped with a first fastening nut (7), and the screw rod (6) is located at the upper end of the second through hole and is equipped with a second fastening nut (8).

2. A cold mix asphalt mixture production device according to claim 1, characterized in that: The weight sensor assembly (5) includes an S-shaped tension sensor (51), the upper end of the S-shaped tension sensor (51) is connected to the upper end of the fixed support frame (1) through a first connecting member, and the lower end of the S-shaped tension sensor (51) is connected to the connecting plate (4) through a second connecting member (53), the first connecting member includes a vertical second screw rod (54), the upper end of the second screw rod (54) is connected to the upper end of the fixed support frame (1), the lower end of the second screw rod (54) is provided with a first U-shaped seat (57), the lower end of the first U-shaped seat (57) is connected to a first joint bearing (59) through a first shaft (510), and the connecting rod end (58) outside the first joint bearing (59) is connected to the upper end of the S-shaped tension sensor (51).

3. The cold mix asphalt mixture production device according to claim 1, characterized in that: The screw rod (6) is also equipped with a third fastening nut (9) at the lower end of the second through hole.

4. The cold mix asphalt mixture production device according to claim 1, characterized in that: A stirring shaft (10) is coaxially arranged inside the asphalt weighing tank (2), and a plurality of stirring wings (11) are sequentially arranged on the stirring shaft (10) along its axial direction. A driving member (12) for rotating the stirring shaft (10) is also arranged at the upper end of the asphalt weighing tank (2).

5. The cold mix asphalt mixture production device according to claim 1, characterized in that: A spiral heating tube (13) is coaxially arranged inside the asphalt weighing tank (2), both ends of the spiral heating tube (13) extend to the upper end surface of the asphalt weighing tank (2), and both ends of the spiral heating tube (13) are respectively provided with a heat transfer oil inlet flange (14) and a heat transfer oil outlet flange (15).

6. The cold mix asphalt mixture production device according to claim 1, characterized in that: The upper end surface of the asphalt weighing tank (2) is provided with an asphalt inlet (16).

7. The cold mix asphalt mixture production device according to claim 1, characterized in that: The lower end surface of the asphalt weighing tank (2) is tilted at a certain angle, and an asphalt outlet flange (17) is provided at the lower end of the lower end surface of the asphalt weighing tank (2).

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