Asphalt concrete auxiliary material control addition system

Abstract

The utility model belongs to the field of concrete construction, and specifically discloses a system for controlling and adding auxiliary materials to asphalt concrete, including a delivery box for placing auxiliary materials and a delivery pump installed in the delivery box, the delivery pump is used to pump the auxiliary materials in the delivery box into the asphalt concrete, the discharge end of the delivery pump is connected with a feeding pipe, the end of the feeding pipe is closed, and a first discharge port and a second discharge port are arranged in parallel on the side wall of the feeding pipe, the first discharge port is used to deliver the auxiliary materials into the asphalt concrete, and the second discharge port is connected with the delivery box; it also includes a control mechanism, the control mechanism includes a detection part for detecting the quality of the asphalt concrete and an adjustment part for adjusting the opening of the first discharge port and the second discharge port, the adjustment part includes a slide plate slidably connected to the inner wall of the feeding pipe. The solution of the utility model can solve the problem that the auxiliary material delivery mechanism in the prior art cannot control the amount of auxiliary materials pumped in to match the quality of the asphalt mixture.

Description

Technical Field

[0001] The utility model belongs to the field of concrete construction, and in particular relates to an asphalt concrete auxiliary material control and adding system. Background Art

[0002] Asphalt concrete pavement is prone to rutting deformation under high temperature and heavy load. Therefore, in sections with longitudinal slope greater than or equal to 3.0%, in order to improve its resistance to rutting and shear deformation, it is necessary to add basalt fiber stabilizer to the asphalt concrete surface layer. The amount of additive is controlled by the dynamic stability of the rutting test not less than 3500 times / mm, and shall not exceed 0.3% of the total mass of the asphalt mixture. Therefore, the accuracy of the amount of stabilizer added is required to be high.

[0003] In the prior art, patent CN202321096381.9 discloses an asphalt mixing mechanism with a dosing mechanism, which provides a stabilizer box and installs a pump in the stabilizer box to pump the stabilizer in the stabilizer box into the mixing box and mix it with the asphalt mixture. However, the above method of directly pumping the stabilizer into the mixing box cannot control the amount of stabilizer pumped in according to the quality of the asphalt mixture in the mixing box, and it is difficult to make the stabilizer amount and the quality of the asphalt mixture compatible. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an asphalt concrete auxiliary material control addition system to solve the problem that the auxiliary material delivery mechanism in the prior art cannot control the amount of auxiliary material pumped in to match the quality of the asphalt mixture.

[0005] According to the embodiment of the utility model, the utility model adopts the following technical solution:

[0006] The asphalt concrete auxiliary material control and addition system comprises a delivery box for placing auxiliary materials and a delivery pump installed in the delivery box, the delivery pump is used to pump the auxiliary materials in the delivery box into the asphalt concrete, the discharge end of the delivery pump is connected to a feeding pipe, the end of the feeding pipe is closed, and a first discharge port and a second discharge port are opened in parallel on the side wall of the feeding pipe, the first discharge port is used to deliver the auxiliary materials into the asphalt concrete, and the second discharge port is connected to the delivery box; it also includes a control mechanism, the control mechanism includes a detection part for detecting the quality of the asphalt concrete and an adjustment part for adjusting the opening of the first discharge port and the second discharge port, the adjustment part includes a slide plate slidably connected to the inner wall of the feeding pipe, the sliding direction of the slide plate is along the arrangement direction of the first discharge port and the second discharge port, and the slide plate has three states: completely closing the first discharge port, completely closing the second discharge port, and simultaneously closing part of the first discharge port and part of the second discharge port.

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

[0008] By detecting the quality of the asphalt concrete through the detection part, the opening of the first discharge port can be adjusted according to the quality of the asphalt concrete to control the amount of auxiliary materials entering the asphalt concrete. By setting the second discharge port to be connected with the delivery box, the auxiliary materials in the delivery pipe can be diverted through the second discharge port when the power of the delivery pump remains unchanged, which makes it easier to control the amount of auxiliary materials delivered into the asphalt concrete.

[0009] Furthermore, the control mechanism also includes a controller, a signal receiving end of the controller is used to receive a detection signal from the detection member, and a signal output end of the controller is used to control the sliding of the slide plate.

[0010] Furthermore, the arrangement direction of the first discharge port and the second discharge port is perpendicular to the axis of the closed end of the feeding pipe.

[0011] Furthermore, a swing rod is hinged at the closed end of the feeding pipe, one end of the swing rod is located in the feeding pipe and hinged to the slide plate, and the other end of the swing rod is located outside the feeding pipe; the end of the swing rod located in the feeding pipe is retractable.

[0012] Furthermore, a slide groove for the slide plate to slide is provided on the inner wall of the feeding pipe.

[0013] Furthermore, the feeding pipe comprises a hose section and a hard pipe section detachably connected to the hose section, and the first discharge port and the second discharge port are both provided on the hard pipe section.

[0014] Furthermore, a first guide portion having an isosceles triangle cross section is provided on one side of the slide plate facing away from the closed end of the feeding pipe.

[0015] Furthermore, a second guide portion having an isosceles triangle longitudinal section is provided on the top surface of the skateboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0017] Figure 2 for Figure 1 Schematic diagram of a medium-hard pipe section and its internal structure.

[0018] Figure 3 for Figure 2 Enlarged view of part A.

[0019] Figure 4 It is a schematic diagram of the structure of the slide plate in the embodiment of the utility model.

[0020] Figure 5 for Figure 1 Top cross-sectional view of the middle hard tube.

[0021] Figure 6 for Figure 1 A top view of the middle swing arm extending out of one end of the feeding tube.

[0022] In the figure: 1. delivery box; 2. delivery pump; 3. hose section; 4. hard pipe section; 5. feeding pipe; 6. first discharge port; 7. slide plate; 8. closing plate; 9. rocker arm; 10. first guide part; 11. second guide part; 12. fixing part; 13. sliding part; 14. second discharge port; 15. strip hole; 16. limiting ring. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below with reference to the accompanying drawings, and specific implementation methods are given.

[0024] like Figure 1 , Figure 2 As shown, the asphalt concrete auxiliary material control addition system includes a delivery box 1 for placing auxiliary materials, a delivery pump 2 installed in the delivery box 1, and a control mechanism. The delivery pump 2 is used to pump the auxiliary materials in the delivery box 1 into the asphalt concrete. During the actual construction process, the asphalt concrete is usually mixed in a mixer, and the delivery pump 2 is used to pump the auxiliary materials in the delivery box 1 into the mixer.

[0025] The discharge end of the delivery pump 2 is connected to a feeding pipe 5, and the end of the feeding pipe 5 is closed. Specifically, the feeding pipe 5 includes a hose section 3 and a hard pipe section 4 detachably connected to the hose section 3. The hose section 3 can be made of a plastic hose or a stainless steel hose, and the hard pipe section 4 is made of a steel pipe. The end of the hard pipe section 4 is detachably connected with a closing plate 8. During the actual assembly process, the hose section 3 and the hard pipe section 4 are connected by a pipe joint in the prior art or by other detachable connection methods. The hard pipe section 4 is fixed on the top of the delivery box 1 to prevent the hard pipe section 4 from moving, and the closing plate 8 is threadedly connected to the end of the hard pipe section 4.

[0026] Combination Figure 5 As shown, a first discharge port 6 and a second discharge port 14 are arranged in parallel on the side wall of the feeding pipe 5. Specifically, the first discharge port 6 and the second discharge port 14 are both arranged on the hard pipe section 4. The arrangement of the hard pipe section 4 can prevent the first discharge port 6 and the second discharge port 14 from shifting during the process of conveying auxiliary materials. The first discharge port 6 is used to deliver auxiliary materials into the asphalt concrete, and the second discharge port 14 is connected to the delivery box 1. Specifically, the first discharge port 6 is connected to a first discharge pipe, which is connected to the mixer, and the second discharge port 14 is connected to a second discharge pipe, which is connected to the delivery box 1. The arrangement direction of the first discharge port 6 and the second discharge port 14 is perpendicular to the axis of the closed end of the feeding pipe 5. Specifically, Figure 5Taking the direction shown in as an example, the axis of the hard pipe section 4 is along the left-right direction, and the first discharge port 6 and the second discharge port 14 are arranged at the bottom of the hard pipe section 4 along the up-down direction. Such a design allows the auxiliary material entering the hard pipe section 4 to reach the first discharge port 6 and the second discharge port 14 at the same time and be evenly diverted.

[0027] The control mechanism includes a controller, a detection component for detecting the quality of asphalt concrete, and an adjustment component for adjusting the opening of the first discharge port 6 and the second discharge port 14. Specifically, the detection component selects a quality sensor used in the prior art for detecting quality, and the quality sensor can be installed at the bottom of the asphalt concrete mixer.

[0028] The adjusting part includes a slide plate 7 which is slidably connected to the inner wall of the feeding pipe 5. The inner wall of the feeding pipe 5 is provided with a slide groove for the slide plate 7 to slide. The sliding path of the slide plate 7 is limited by the slide groove. The sliding direction of the slide plate 7 is along the arrangement direction of the first discharge port 6 and the second discharge port 14. The slide plate 7 has three states: completely closing the first discharge port 6, completely closing the second discharge port 14, and simultaneously closing part of the first discharge port 6 and part of the second discharge port 14.

[0029] Combination Figure 2 , Figure 3 As shown, the closed end of the feeding tube 5 is hinged with a rocker arm 9. Specifically, the middle part of the rocker arm 9 is hinged on the closing plate 8. One end of the rocker arm 9 is located in the feeding tube 5 and is hinged to the slide plate 7. The other end of the rocker arm 9 is located outside the feeding tube 5. The end of the rocker arm 9 located in the feeding tube 5 is retractable. Specifically, the end of the rocker arm 9 located in the feeding tube 5 includes a fixed portion 12 and a sliding portion 13 connected to the fixed portion 12 along the axial sliding of the fixed portion 12. The end of the sliding portion 13 is hinged to the slide plate 7. By swinging the end of the rocker arm 9 located outside the feeding tube 5, the end of the rocker arm 9 located in the feeding plate can swing and drive the slide plate 7 to slide in the slide groove. In this process, the sliding portion 13 slides relative to the fixed portion 12. A cylinder that drives the rocker arm 9 to swing is fixed on the closing plate 8. Specifically, in combination with Figure 6 As shown, a strip hole 15 is opened on the rocker arm 9, and the output shaft of the cylinder is inserted into the strip hole 15. Limiting rings 16 are fixed on both sides of the output shaft of the cylinder on the rocker arm 9. There is actually no connection between the output shaft of the cylinder and the rocker arm 9. As the output shaft of the cylinder slides, the rocker arm 9 is pushed to swing through the limiting ring 16. During this process, the output shaft of the cylinder moves relative to the rocker arm 9 in the strip hole 15.

[0030] Combination Figure 4 As shown, a first guide portion 10 having an isosceles triangle cross section is provided on one side of the closed end of the slide plate 7 facing away from the feeding pipe 5, and a second guide portion 11 having an isosceles triangle longitudinal section is provided on the top surface of the slide plate 7. By arranging the first guide portion 10 and the second guide portion 11, the auxiliary materials accumulated on the side or top of the slide plate 7 are reduced, so that the auxiliary materials are convenient to enter the first feed port or the second feed port.

[0031] The signal receiving end of the controller is used to receive the detection signal of the detection part, and the signal output end of the controller is used to control the sliding of the slide plate 7. Specifically, after the signal receiving end of the controller receives the detection signal of the mass sensor, the signal output end of the controller controls the cylinder to start, and the cylinder pushes the rocker rod 9 to swing, thereby driving the slide plate 7 to slide, adjusting the position of the slide plate 7, and then adjusting the opening of the first feed port and the second feed port.

[0032] During specific use, in the initial state, the slide plate 7 completely closes the first discharge port 6, and the delivery pump 2 is started. At this time, the auxiliary materials pumped by the delivery pump 2 are all returned to the delivery box 1 through the second discharge port 14. When the asphalt concrete mixer starts to mix the asphalt concrete inside it, the quality of the concrete is detected by the quality sensor. The controller controls the cylinder to start according to the received quality signal, and the cylinder pushes the swing rod 9 to swing, thereby driving the slide plate 7 to slide and adjust the position of the slide plate 7. The slide plate 7 gradually opens the first discharge port 6 and gradually starts to close the second discharge port 14. According to the quality signal, the opening ratio of the first discharge port 6 and the second discharge port 14 can be controlled. Under the condition that the power of the delivery pump 2 remains unchanged, the auxiliary materials in the feeding pipe 5 can be diverted through the second discharge port 14, that is, the amount of auxiliary materials pumped into the asphalt concrete is controlled.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Asphalt concrete auxiliary material control and addition system, including a delivery box for placing auxiliary materials and a delivery pump installed in the delivery box, the delivery pump is used to pump the auxiliary materials in the delivery box into the asphalt concrete, characterized in that: The discharge end of the delivery pump is connected to a delivery pipe, the end of the delivery pipe is closed, and a first discharge port and a second discharge port are opened in parallel on the side wall of the delivery pipe, the first discharge port is used to deliver auxiliary materials into the asphalt concrete, and the second discharge port is connected to the delivery box; it also includes a control mechanism, the control mechanism includes a detection part for detecting the quality of the asphalt concrete and an adjustment part for adjusting the opening degree of the first discharge port and the second discharge port, the adjustment part includes a slide plate slidably connected to the inner wall of the delivery pipe, the sliding direction of the slide plate is along the arrangement direction of the first discharge port and the second discharge port, and the slide plate has three states: completely closing the first discharge port, completely closing the second discharge port, and simultaneously closing part of the first discharge port and part of the second discharge port.

2. The asphalt concrete auxiliary material control and addition system according to claim 1 is characterized in that: The control mechanism also includes a controller, a signal receiving end of the controller is used to receive a detection signal from the detection member, and a signal output end of the controller is used to control the sliding of the slide plate.

3. The asphalt concrete auxiliary material control and addition system according to claim 1 is characterized in that: The arrangement direction of the first discharge port and the second discharge port is perpendicular to the axis of the closed end of the feeding pipe.

4. The asphalt concrete auxiliary material control and addition system according to claim 1, characterized in that: The closed end of the feeding pipe is hinged with a swing rod, one end of the swing rod is located in the feeding pipe and hinged with the slide plate, and the other end of the swing rod is located outside the feeding pipe; the end of the swing rod located in the feeding pipe is retractable.

5. The asphalt concrete auxiliary material control and addition system according to claim 4, characterized in that: The inner wall of the feeding pipe is provided with a sliding groove for the sliding plate to slide.

6. The asphalt concrete auxiliary material control and addition system according to claim 1, characterized in that: The feeding pipe comprises a hose section and a hard pipe section detachably connected to the hose section, and the first discharge port and the second discharge port are both arranged on the hard pipe section.

7. The asphalt concrete auxiliary material control and addition system according to claim 1, characterized in that: A first guide portion having an isosceles triangle cross section is provided on one side of the slide plate facing away from the closed end of the feeding pipe.

8. The asphalt concrete auxiliary material control and addition system according to claim 1, characterized in that: The top surface of the slide plate is provided with a second guide portion with a longitudinal section in the shape of an isosceles triangle.

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