Asphalt plant cold feed control damper

Abstract

The utility model discloses a kind of asphalt mixing station cold material supply amount control baffle, belong to cold material supply technical field, including cold material bin body, the bottom end of cold material bin body is provided with discharge gate, the front and back sides of discharge gate are respectively provided with supply amount control mechanism, discharge gate inside is connected with material conveying baffle, discharge gate lower end is provided with conveying belt;Supply amount control mechanism includes the sliding frame of being set to the sidewall of discharge gate, sliding frame sidewall is opened with sliding slot, sliding slot inside is inserted with sliding block, the other end of sliding block is connected with control baffle, the other end of control baffle inserts discharge gate inside.The utility model uses above-mentioned one kind of asphalt mixing station cold material supply amount control baffle, can adjust the cold material supply amount of cold material bin body according to actual demand, prevent large particle cold material from entering cold material bin body simultaneously, make cold material bin body feed balanced.

Description

Technical Field

[0001] This utility model relates to the field of cold material supply technology, and in particular to a baffle for controlling the cold material supply of an asphalt mixing plant. Background Technology

[0002] Currently, the most common cold aggregate supply system in intermittent asphalt mixing plants for hot-mix asphalt concrete on highways is the intelligent variable frequency motor. However, the speed of most intelligent variable frequency motors cannot be kept constant after the speed is below or above a certain range. For example, when producing certain types of asphalt mixtures, the amount of aggregate used is relatively small, and the amount of stone required will be lower than the speed requirement of the variable frequency motor. This leads to the instability of the corresponding hot aggregate gradation, resulting in structural instability and deviation of the volume, mechanical and other physical properties from the optimal requirements for production. Utility Model Content

[0003] The purpose of this utility model is to provide a cold material supply control baffle for asphalt mixing plants, which can adjust the cold material supply of the cold material bin according to actual needs, while preventing large particles of cold material from entering the cold material bin and ensuring a balanced supply of material to the cold material bin.

[0004] To achieve the above objectives, this utility model provides a cold aggregate supply control baffle for an asphalt mixing plant, including a cold aggregate bin body, a discharge port at the bottom of the cold aggregate bin body, a supply control mechanism on the front and rear sides of the discharge port, a conveying baffle connected inside the discharge port, and a conveyor belt at the lower end of the discharge port. The supply control mechanism includes a sliding frame set on the side wall of the feed port, a sliding groove is opened on the side wall of the sliding frame, a slider is inserted inside the sliding groove, and a control baffle is connected to the other end of the slider. The other end of the control baffle is inserted into the feed port.

[0005] Preferably, a one-way screw is inserted inside the slide groove, and the one-way screw is rotatably connected to the slide frame. The slider is sleeved on the one-way screw and slides along the slide groove via the one-way screw. A transverse groove is opened inside the slide frame. One end of the one-way screw passes through the transverse groove and is connected to a first bevel gear. A rotating rod is inserted inside the transverse groove and is rotatably connected to the slide frame. A second bevel gear is connected to the rotating rod, and the first bevel gear and the second bevel gear mesh with each other.

[0006] Preferably, the slide frame sidewall is connected to an insert cylinder, and one end of the rotating rod passes through the insert cylinder and is connected to a handle.

[0007] Preferably, the insert has a first through hole on its side wall, a positioning pin is inserted into the first through hole, and a second through hole is opened on the rotating rod, with the positioning pin passing through the first through hole and the second through hole in sequence.

[0008] Preferably, a limiting block is provided on the side wall of the end of the control baffle that is inserted into the feed port, and a limiting groove is provided at the position where the inner wall of the feed port contacts the limiting block, and the limiting block is inserted into the limiting groove and slides along the limiting groove.

[0009] Preferably, a hinge is provided on the inner wall of the discharge port, the top of the conveying baffle is hinged to the hinge, and the conveying baffle is rotatably connected to the discharge port through the hinge.

[0010] Preferably, the rotation direction of the lower end of the conveying baffle is consistent with the conveying direction of the conveyor belt.

[0011] Preferably, a tension spring is provided on the side wall of the conveying baffle, and the top of the tension spring is connected to the inner wall of the discharge port.

[0012] Therefore, this utility model adopts the above-mentioned cold material supply control baffle of an asphalt mixing plant, which can adjust the cold material supply of the cold material bin according to actual needs, while preventing large particles of cold material from entering the cold material bin, so as to make the cold material bin supply balanced.

[0013] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the asphalt mixing plant cold material supply control baffle in this utility model. Figure 2 This is a schematic diagram of the specific structure of the supply control mechanism in this utility model; Figure 3 This is an enlarged view of point A in this utility model; Figure 4 This is a cross-sectional view of the internal structure of the feed port in this utility model.

[0015] Figure Labels 1. Cold material bin body; 2. Conveying baffle; 3. Conveyor belt; 4. Discharge port; 5. Sliding frame; 6. One-way lead screw; 7. Sliding block; 8. First bevel gear; 9. Rotating rod; 10. Second bevel gear; 11. Rotating handle; 12. Control baffle; 13. Slide groove; 14. Horizontal groove; 15. Insert cylinder; 16. Positioning pin; 17. First through hole; 18. Second through hole; 19. Limiting block; 20. Limiting groove; 21. Hinge; 22. Tension spring. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0017] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] like Figure 1 As shown, a cold aggregate supply control baffle for an asphalt mixing plant includes a cold aggregate bin 1, a supply adjustment mechanism, a conveying baffle 2, a conveyor belt 3, and a discharge port 4. The discharge port 4 is provided at the bottom of the cold aggregate bin 1 and is connected to the interior of the cold aggregate bin 1. Two supply adjustment mechanisms are respectively provided on the front and rear sides of the discharge port 4. The conveying baffle 2 is provided inside the discharge port 4 and is hinged to the discharge port 4. The conveyor belt 3 is provided at the lower end of the discharge port 4, and the lower end of the conveying baffle 2 is close to the conveyor belt 3.

[0019] like Figure 2 , Figure 3 As shown, the supply control mechanism includes a sliding frame 5, a one-way screw 6, a slider 7, and a control baffle 12. The sliding frame 5 is fixedly connected to the side wall of the discharge port 4. A groove 13 is provided on the side wall of the sliding frame 5. The one-way screw 6 is inserted into the groove 13 and is rotatably connected to the sliding frame 5. A through hole is provided on the slider 7. An internal thread matching the one-way screw 6 is provided inside the through hole. The slider 7 is sleeved on the one-way screw 6 through the through hole and slides along the groove 13 in cooperation with the one-way screw 6 through the internal thread inside the through hole. The other end of the slider 7 is fixedly connected to the control baffle 12, and the other end of the control baffle 12 is inserted into the discharge port 4.

[0020] The supply control mechanism also includes a first bevel gear 8, a rotating rod 9, a second bevel gear 10, and a handle 11. A transverse groove 14 is provided inside the end of the slide frame 5 away from the feed port 4. One end of the one-way screw 6 passes through the transverse groove 14 and is connected to the first bevel gear 8. The rotating rod 9 is inserted into the transverse groove 14 and is rotatably connected to the slide frame 5. The second bevel gear 10 is sleeved on the rotating rod 9 and is connected to the rotating rod 9. The first bevel gear 8 and the second bevel gear 10 mesh with each other. An insert 15 is provided on the side wall of the slide frame 5. One end of the rotating rod 9 passes through the insert 15 and is connected to the handle 11.

[0021] The supply control mechanism also includes a positioning pin 16. The upper and lower sides of the insert 15 are provided with first through holes 17, and the rotating rod 9 is provided with a second through hole 18. The second through hole 18 is cross-shaped. The positioning pin 16 passes through the first through hole 17 and the second through hole 18 on the upper side of the insert 15 in sequence and passes through the first through hole 17 on the lower side of the insert 15 to fix the position between the rotating rod 9 and the insert 15, thereby fixing the position of the control baffle 12.

[0022] A limit block 19 is fixedly connected to one end of the control baffle 12 inserted into the feed port 4. A limit groove 20 is opened at the position where the inner wall of the feed port 4 contacts the limit block 19. The limit block 19 is inserted into the limit groove 20 and slides horizontally along the limit groove 20.

[0023] like Figure 4 As shown, a hinge 21 is provided on the inner wall of the discharge port 4. A pin is inserted on the hinge 21. The top of the conveying baffle 2 is hinged to the hinge 21 through the pin. The conveying baffle 2 is rotatably connected to the discharge port 4 through the hinge 21. The conveying baffle 2 is inclined and the rotation direction of the lower end of the conveying baffle 2 is consistent with the conveying direction of the conveyor belt 3 to avoid damaging the conveyor belt 3 and affecting the supply efficiency.

[0024] The side wall of the conveying baffle 2 is provided with a hook (not shown in the figure). The bottom end of the tension spring 22 is hung on the hook on the side wall of the conveying baffle 2. The inner wall of the discharge port 4 is provided with a hook (not shown in the figure). The top end of the tension spring 22 is hung on the hook on the inner wall of the discharge port 4. The tension spring 22 is used to reset the conveying baffle 2.

[0025] Working principle: The cold material in the cold material bin 1 is conveyed outward through the discharge port 4. The conveyor belt 3 below receives and transfers the cold material. The entire feeding process achieves precise control and stable feeding through the coordinated action of the supply quantity adjustment mechanism and the conveying baffle 2.

[0026] In terms of cold material supply adjustment, the supply adjustment mechanism on the front and rear sides of the discharge port 4 plays a core role. The sliding frame 5 of the adjustment mechanism is fixed to the side wall of the discharge port 4. A rotatable one-way screw 6 is provided in the internal sliding groove 13. The slider 7 is engaged with the one-way screw 6 through the internal thread of the inner wall, and one end of the slider 7 is connected to the control baffle 12 that extends into the discharge port 4.

[0027] When the handle 11 connected to the insert 15 of the slide frame 5 is rotated, the handle 11 drives the rotating rod 9 that passes through the insert 15 to rotate. The second bevel gear 10 on the rotating rod 9 meshes with the first bevel gear 8 that extends into the transverse groove 14 of the slide frame 5 with the one-way screw 6, transmitting the rotation to the one-way screw 6, causing the one-way screw 6 to rotate and drive the slider 7 to slide horizontally along the slide groove 13, thereby driving the control baffle 12 to move synchronously.

[0028] Meanwhile, the limiting block 19 of the control baffle 12 extends into the feeding port 4 and slides along the limiting groove 20 on the inner wall of the feeding port 4 to ensure the stable movement of the control baffle 12. After adjusting to the required supply amount, the positioning pin 16 passes through the first through hole 17 on the side wall of the insert 15 and the cross-shaped second through hole 18 on the rotating rod 9 to fix the relative position of the rotating rod 9 and the insert 15, thereby locking the position of the control baffle 12 and realizing the precise adjustment of the opening size of the feeding port 4 to meet the actual needs of different cold material supply amounts.

[0029] In terms of ensuring balanced material supply and protection, the material conveying baffle 2, which is hinged to the discharge port 4 by the hinge 21, plays a key role. The material conveying baffle 2 is set at an angle, and its top end is hinged to the hinge 21 to achieve rotation around the discharge port 4. The rotation direction of the lower end is consistent with the material conveying direction of the conveyor belt 3, so as to avoid damage caused by reverse friction with the conveyor belt 3.

[0030] A tension spring 22 is connected between the side wall of the conveying baffle 2 and the inner wall of the discharge port 4 via a hook. After the cold material impacts, the conveying baffle 2 can be pulled to reset. At the same time, the conveying baffle 2 can prevent large particles of cold material discharged from the previous cold material bin 1 from entering the discharge port 4 and interior of this cold material bin 1, avoiding blockage or uneven feeding caused by large particles of cold material, and ensuring that the cold material bin 1 feeds the conveyor belt 3 continuously and evenly.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A baffle for controlling the cold aggregate supply at an asphalt mixing plant, characterized in that: It includes a cold material hopper, a discharge port is provided at the bottom of the cold material hopper, a supply control mechanism is provided on the front and rear sides of the discharge port, a material conveying baffle is connected inside the discharge port, and a conveyor belt is provided at the lower end of the discharge port; The supply control mechanism includes a sliding frame disposed on the side wall of the discharge port. The side wall of the sliding frame has a sliding groove, and a slider is inserted inside the sliding groove. The other end of the slider is connected to a control baffle, and the other end of the control baffle is inserted into the discharge port.

2. The asphalt mixing plant cold aggregate supply control baffle according to claim 1, characterized in that: A one-way lead screw is inserted inside the slide groove, and the one-way lead screw is rotatably connected to the slide frame. The slider is sleeved on the one-way lead screw and slides along the slide groove via the one-way lead screw. A transverse groove is opened inside the slide frame. One end of the one-way lead screw passes through the transverse groove and is connected to a first bevel gear. A rotating rod is inserted inside the transverse groove and is rotatably connected to the slide frame. A second bevel gear is connected to the rotating rod, and the first bevel gear and the second bevel gear mesh with each other.

3. The asphalt mixing plant cold aggregate supply control baffle according to claim 2, characterized in that: The sliding frame sidewall is connected to an insert cylinder, and one end of the rotating rod passes through the insert cylinder and is connected to a handle.

4. The asphalt mixing plant cold aggregate supply control baffle according to claim 3, characterized in that: The insert has a first through hole on its side wall, and a positioning pin is inserted into the first through hole. The rotating rod has a second through hole, and the positioning pin passes through the first through hole and the second through hole in sequence.

5. A cold aggregate supply control baffle for an asphalt mixing plant according to claim 1, characterized in that: A limiting block is provided on one side wall of the control baffle that is inserted into the feed port. A limiting groove is provided at the position where the inner wall of the feed port contacts the limiting block. The limiting block is inserted into the limiting groove and slides along the limiting groove.

6. The asphalt mixing plant cold aggregate supply control baffle according to claim 1, characterized in that: The inner wall of the discharge port is provided with a hinge, the top of the conveying baffle is hinged to the hinge, and the conveying baffle is rotatably connected to the discharge port through the hinge.

7. A cold aggregate supply control baffle for an asphalt mixing plant according to claim 5, characterized in that: The rotation direction of the lower end of the conveying baffle is consistent with the conveying direction of the conveyor belt.

8. A cold aggregate supply control baffle for an asphalt mixing plant according to claim 1, characterized in that: A tension spring is provided on the side wall of the conveying baffle, and the top of the tension spring is connected to the inner wall of the discharge port.

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