A stone conveyor for preparing asphalt concrete

Abstract

The utility model relates to a kind of stone conveyer, specifically a kind of stone conveyer of asphalt concrete preparation, including support frame;Still including inlay block, slidingly installed on support frame;Conveying part, including multiple groups of roller, conveying belt;Still including adjusting part, including extrusion plate, extrusion plate can be far away or close to inlay block;The tension of conveying belt is adjusted by adjusting part, can avoid conveying belt deviation also can reduce starting load;Extrusion plate, first spring, sliding plate constitute elastic floating structure;When conveying belt is subjected to violent impact, sliding plate can compress first spring, can effectively prevent conveying belt tear, roller bending or conveying motor overloading burn, greatly improve the reliability and service life of equipment;And when conveying belt slightly elongates due to long-term use, the elasticity of first spring will drive roller to move, to ensure that roller is always in contact with conveying belt, ensure that conveying process is stable, prevent skidding, also can reduce maintenance frequency.

Description

Technical Field

[0001] This utility model relates to a stone conveyor, specifically a stone conveyor for preparing asphalt concrete. Background Technology

[0002] Belt conveyors are indispensable key equipment in asphalt concrete production lines, mainly used for lifting and horizontally conveying aggregates (stone). Their operational stability, reliability, and efficiency directly affect the continuity of the entire production system and the quality of the final product.

[0003] Currently, common belt conveyors typically use a fixed center distance. Once the conveyor belt tension is adjusted during installation, this fixed center distance cannot be changed.

[0004] The conveyor starts unloaded, and the load gradually increases from zero to full load during operation. A fixed tension design struggles to accommodate different operating conditions: if the tension is set for full load, the tension on the unloaded conveyor belt during startup will be too high, increasing the motor's starting load and energy consumption, and accelerating wear on the conveyor belt and bearings. If the tension is set for unloaded or half-loaded operation, the conveyor belt will sag severely due to insufficient tension during heavy load operation, easily causing misalignment on the rollers, resulting in material spillage, damage to the conveyor belt edges, and even equipment shutdown. Furthermore, the impact load of heavy aggregates can create violent fluctuations, which a fixed tension cannot effectively buffer. The impact force is directly transmitted to the conveyor belt, rollers, and drive motor, posing a risk of the conveyor belt breaking, rollers bending, or the motor burning out. Utility Model Content

[0005] The purpose of this invention is to provide a stone conveyor for preparing asphalt concrete, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A stone conveyor for preparing asphalt concrete includes a support frame;

[0008] It also includes a fitting block that is slidably mounted on the support frame;

[0009] The conveying component includes multiple sets of rollers rotatably mounted on the fitting block and the support frame; the multiple sets of rollers are connected by a conveyor belt.

[0010] It also includes an adjusting element, including an extrusion plate slidably mounted on the support frame, the extrusion plate being able to move away from or close to the interlocking block; the adjusting element is used to adjust the tension of the conveyor belt.

[0011] The stone conveyor for preparing asphalt concrete as described above: the conveying component further includes a conveying motor fixedly installed on the support frame, the output end of the conveying motor being fixedly connected to one of the roller shafts; and multiple sets of partitions are fixedly installed on the conveyor belt at equal intervals.

[0012] As described above, the stone conveyor for preparing asphalt concrete includes an adjusting component that further includes a sliding plate slidably mounted on the support frame. The sliding plate is fixedly connected to the interlocking block via a connecting rod, and the extrusion plate is slidably connected to the connecting rod. A first spring is wrapped around the connecting rod, and the two ends of the first spring abut against the sliding plate and the extrusion plate, respectively.

[0013] The aggregate conveyor for preparing asphalt concrete as described above includes: an adjusting motor fixedly installed on the support frame, a first gear fixedly installed on the output end of the adjusting motor; a second gear meshing with the first gear on the support frame; a lead screw fixedly installed on the extrusion plate; and a threaded sleeve rotatably installed on the support frame and threadedly connected to the lead screw, and the threaded sleeve is fixedly connected to the second gear.

[0014] As described above, the stone conveyor for preparing asphalt concrete has multiple sets of second springs on the support frame, with the two ends of the second springs respectively contacting the support frame and the side of the sliding plate away from the extrusion plate.

[0015] The stone conveyor for preparing asphalt concrete as described above: multiple sets of slots are equally spaced on the roller.

[0016] The stone conveyor for preparing asphalt concrete as described above: a protective shell is fixedly installed on the support frame, and the two ends of the protective shell are respectively provided with an inlet and an outlet that cooperate with the conveyor belt.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: by adjusting the tension of the conveyor belt through the adjusting component, the conveyor belt can be prevented from running off-track and the starting load can be reduced; the extrusion plate, the first spring, and the sliding plate form an elastic floating structure; when the conveyor belt is subjected to severe impact, the sliding plate can compress the first spring (the elastic force of the first spring can act as a buffer force), which can effectively prevent the conveyor belt from tearing, the roller from bending, or the conveyor motor from overloading and burning out, greatly improving the reliability and service life of the equipment; and when the conveyor belt stretches slightly due to long-term use, the elastic force of the first spring will drive the roller to move, thereby ensuring that the roller is always in contact with the conveyor belt, ensuring a smooth conveying process, preventing slippage, and reducing the maintenance frequency. Attached Figure Description

[0018] Figure 1A schematic diagram of the structure of a stone conveyor for preparing asphalt concrete.

[0019] Figure 2 for Figure 1 A structural diagram from another perspective.

[0020] Figure 3 for Figure 2 A schematic diagram of the structure at point A in the middle.

[0021] Figure 4 A schematic diagram of the roller structure in a stone conveyor for preparing asphalt concrete.

[0022] Figure 5 A schematic diagram of the interlocking blocks in a stone conveyor for preparing asphalt concrete.

[0023] Figure 6 A schematic diagram of the extrusion plate in a stone conveyor for preparing asphalt concrete.

[0024] In the diagram: 1. Supporting frame;

[0025] 2. Conveyor motor;

[0026] 3. Interlocking blocks;

[0027] 4. Roller shaft; 401. Groove opening;

[0028] 5. Conveyor belt; 501. Partition plate;

[0029] 6. Protective outer casing; 601. Inlet; 602. Outlet;

[0030] 7. Connecting rod;

[0031] 8. Sliding plate;

[0032] 9. Extrusion plate; 901. Screw rod;

[0033] 10. The first spring;

[0034] 11. The second spring;

[0035] 12. Adjust the motor;

[0036] 13. First gear;

[0037] 14. Second gear; 1401. Threaded sleeve. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0039] Please see Figures 1-6 As an embodiment of the present utility model, the stone conveyor for preparing asphalt concrete includes a support frame 1;

[0040] It also includes a fitting block 3, which is slidably mounted on the support frame 1;

[0041] The conveying component includes multiple sets of rollers 4 rotatably mounted on the fitting block 3 and the support frame 1; the multiple sets of rollers 4 are connected by a conveyor belt 5.

[0042] It also includes an adjusting component, including an extrusion plate 9 slidably mounted on the support frame 1, the extrusion plate 9 being able to move away from or close to the interlocking block 3; the adjusting component is used to adjust the tension of the conveyor belt 5.

[0043] In this embodiment, before the equipment is started, the interlocking block 3 is located at the end away from the extrusion plate 9. At this time, the overall spacing between the rollers 4 is relatively small, which makes the conveyor belt 5 have relatively small tension in the early stage of equipment start-up, which can reduce the start-up load of the stone conveyor. In addition, in the early stage of equipment start-up, the stone is released on the conveyor belt 5, which will cause the load of the conveyor belt 5 to increase instantaneously, resulting in an instantaneous increase in tension. The relatively small tension can prevent the conveyor belt 5 from breaking.

[0044] As the stones are continuously released, the load on the conveyor belt 5 will continuously increase. During this process, the gravity of the stones on the conveyor belt 5 will act on the interlocking block 3, causing the interlocking block 3 to tend to move away from the extrusion plate 9 (i.e., the surface of the conveyor belt 5 tends to sag). By adjusting the tension of the conveyor belt 5 through the adjusting component, the extrusion plate 9 is moved away from the interlocking block 3, thereby driving the roller 4 to move through the interlocking block 3, increasing the overall distance between the multiple sets of rollers 4, thus tightening the conveyor belt 5 and increasing the tension of the conveyor belt 5. This prevents the excessive load from bending the conveyor belt 5, thereby reducing the probability of misalignment of the conveyor belt 5 on the roller 4 (conveyor belt 5 running off track). When the conveyor belt 5 is subjected to severe impact (such as a sudden increase in the amount of stones falling), the impact is buffered by the adjusting component, which can effectively prevent the conveyor belt 5 from tearing, the roller 4 from bending, or the conveyor motor 2 from overloading and burning out, greatly improving the reliability and service life of the equipment.

[0045] As a further embodiment of this utility model, the conveying component also includes a conveying motor 2 fixedly installed on the support frame 1, the output end of the conveying motor 2 being fixedly connected to a roller shaft 4; and multiple sets of partitions 501 are fixedly installed on the conveyor belt 5 at equal intervals.

[0046] In this embodiment, when the conveyor motor 2 operates, it drives one roller 4 to rotate, which in turn drives multiple sets of rollers 4 to rotate via the conveyor belt 5. This enables the conveyor belt 5 to move, thereby conveying the stone from one end of the conveyor belt 5 to the other. Furthermore, by increasing the resistance to stone backflow through the partition 501, the backflow of stone during upward conveying can be effectively reduced, thus ensuring conveying efficiency and avoiding affecting the preparation efficiency of asphalt concrete.

[0047] As a further embodiment of this utility model, the adjusting component also includes a sliding plate 8 slidably mounted on the support frame 1. The sliding plate 8 is fixedly connected to the fitting block 3 by a connecting rod 7, and the pressing plate 9 is slidably connected to the connecting rod 7. A first spring 10 is wrapped around the connecting rod 7, and the two ends of the first spring 10 abut against the sliding plate 8 and the pressing plate 9, respectively.

[0048] As a further embodiment of this utility model, the adjusting component also includes an adjusting motor 12 fixedly mounted on the support frame 1, and a first gear 13 fixedly mounted on the output end of the adjusting motor 12; a second gear 14 meshing with the first gear 13 is provided on the support frame 1; a lead screw 901 is fixedly mounted on the extrusion plate 9; and a threaded sleeve 1401 threadedly connected to the lead screw 901 is rotatably mounted on the support frame 1, and the threaded sleeve 1401 is fixedly connected to the second gear 14.

[0049] In this embodiment, at the initial stage of equipment startup, the elastic force of the first spring 10 acts on the interlocking block 3 (the first spring 10 has an initial compression), which enables the conveyor belt 5 to come into close contact with the roller 4, thereby preventing the conveyor belt 5 from slipping at the initial stage of startup.

[0050] As the stone is continuously released (from the initial start-up stage to the stable operation stage), the load on the conveyor belt 5 will gradually increase; during this process, the control and adjustment motor 12 will be activated, thereby driving the first gear 13 to rotate, and through meshing, driving the second gear 14 to rotate, thereby driving the threaded sleeve 1401 to rotate.

[0051] The rotating threaded sleeve 1401 drives the lead screw 901 to move horizontally along the axial direction of the threaded sleeve 1401 through the threaded engagement, thereby driving the extrusion plate 9 to move synchronously away from the roller shaft 4. During this process, the extrusion plate 9 compresses the first spring 10, increasing the elastic force of the first spring 10. The increased elastic force acts on the sliding plate 8 and is transmitted to the interlocking block 3 through the connecting rod 7, causing the interlocking block 3 to slide on the support frame 1 towards the extrusion plate 9, thereby increasing the overall distance between the roller shafts 4, thus straightening the conveyor belt 5 (increasing the tension of the conveyor belt 5), thereby weakening or offsetting the influence of the stone's gravity on the conveyor belt 5, reducing the sagging of the conveyor belt 5, and preventing the conveyor belt 5 from running off-track.

[0052] The extrusion plate 9, the first spring 10, and the sliding plate 8 form an elastic floating structure. When the conveyor belt 5 is subjected to severe impact, the sliding plate 8 can compress the first spring 10 (the elastic force of the first spring 10 can act as a buffer force), which can effectively prevent the conveyor belt 5 from tearing, the roller 4 from bending, or the conveyor motor 2 from overloading and burning out, greatly improving the reliability and service life of the equipment. Moreover, when the conveyor belt 5 is slightly elongated due to long-term use, the elastic force of the first spring 10 will drive the roller 4 to move, thereby ensuring that the roller 4 is always in contact with the conveyor belt 5, ensuring a smooth conveying process, preventing slippage, and reducing the frequency of maintenance.

[0053] As a further embodiment of this utility model, the support frame 1 is provided with multiple sets of second springs 11, and the two ends of the second springs 11 respectively abut against the support frame 1 and the side of the sliding plate 8 away from the pressing plate 9.

[0054] In this embodiment, the compression plate 9 moves towards the sliding plate 8, further compressing the first spring 10. The increased elastic force of the first spring 10 is transmitted to the second spring 11 via the sliding plate 8, increasing the pressure of the entire system and thus manifesting as increased tension. This process is flexible and gradual, avoiding potential damage to the belt caused by rigid drive.

[0055] Furthermore, when the conveyor belt 5 breaks, the elastic force of the second spring 11 buffers the elastic force of the first spring 10, which can effectively reduce the impact on the conveyor structure.

[0056] As a further improvement of this utility model, multiple sets of slots 401 are equally spaced on the roller 4.

[0057] In this embodiment, the groove 401 can increase the surface friction coefficient of the roller 4, thereby reducing the probability of the conveyor belt 5 slipping.

[0058] As a further embodiment of this utility model, a protective shell 6 is fixedly installed on the support frame 1, and the two ends of the protective shell 6 are respectively provided with an inlet 601 and an outlet 602 that cooperate with the conveyor belt 5.

[0059] In this embodiment, the stone enters the conveyor belt 5 through the feed inlet 601 and is discharged outward through the discharge outlet 602. The entire conveying process is carried out inside the protective housing 6, which can reduce the impact of dust on equipment operation and the environment.

[0060] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A stone conveyor for preparing asphalt concrete, comprising a support frame (1); Its features are, It also includes a fitting block (3), which is slidably mounted on the support frame (1); The conveying component includes multiple sets of rollers (4) rotatably mounted on the fitting block (3) and the support frame (1); the multiple sets of rollers (4) are connected by a conveyor belt (5); It also includes an adjusting element, including an extrusion plate (9) slidably mounted on the support frame (1), the extrusion plate (9) being able to move away from or close to the interlocking block (3); the adjusting element is used to adjust the tension of the conveyor belt (5).

2. The aggregate conveyor for preparing asphalt concrete according to claim 1, characterized in that, The conveying component also includes a conveying motor (2) fixedly installed on the support frame (1), the output end of the conveying motor (2) being fixedly connected to a roller (4); and multiple sets of partitions (501) are fixedly installed on the conveyor belt (5) at equal intervals.

3. The aggregate conveyor for preparing asphalt concrete according to claim 1, characterized in that, The adjusting component also includes a sliding plate (8) slidably mounted on the support frame (1). The sliding plate (8) is fixedly connected to the fitting block (3) by a connecting rod (7), and the pressing plate (9) is slidably connected to the connecting rod (7). A first spring (10) is wrapped around the connecting rod (7), and the two ends of the first spring (10) abut against the sliding plate (8) and the pressing plate (9) respectively.

4. The aggregate conveyor for preparing asphalt concrete according to claim 3, characterized in that, The adjusting component also includes an adjusting motor (12) fixedly installed on the support frame (1), a first gear (13) fixedly installed on the output end of the adjusting motor (12); a second gear (14) meshing with the first gear (13) is provided on the support frame (1); a lead screw (901) is fixedly installed on the extrusion plate (9); a threaded sleeve (1401) threadedly connected to the lead screw (901) is rotatably installed on the support frame (1), and the threaded sleeve (1401) is fixedly connected to the second gear (14).

5. The aggregate conveyor for preparing asphalt concrete according to claim 3, characterized in that, The support frame (1) is provided with multiple sets of second springs (11), and the two ends of the second springs (11) respectively abut against the support frame (1) and the side of the sliding plate (8) away from the extrusion plate (9).

6. The aggregate conveyor for preparing asphalt concrete according to claim 2, characterized in that, Multiple sets of slots (401) are equally spaced on the roller (4).

7. The aggregate conveyor for preparing asphalt concrete according to claim 1, characterized in that, A protective shell (6) is fixedly installed on the support frame (1). The protective shell (6) has an inlet (601) and an outlet (602) at both ends that cooperate with the conveyor belt (5).

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