Protective frame for crawler belt conveyor

Abstract

The utility model discloses a protective frame for a crawler belt conveyor, which comprises pressing plate supports arranged on belt conveyor supports on two sides of a conveying belt, a pressing plate is rotatably arranged at the top of each pressing plate support, a pressing wheel and a hopper are arranged on each pressing plate, and the pressing wheels can tightly press the conveying belt, so that the phenomenon of belt floating is effectively prevented. Abnormal abrasion of the conveying belt is reduced, the service life of the conveying belt is prolonged, and continuous and stable operation of the belt conveyor is guaranteed. In addition, the hopper timely receives the materials overflowing from the edge when the conveying belt works, potential safety hazards possibly caused by scattering of the materials are eliminated, and therefore the overall working efficiency and operation safety are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to a protective frame for a crawler belt conveyor. Background Art

[0002] As a continuous conveying equipment, the crawler belt conveyor is widely used in industries such as mines, ports, metallurgy, and chemical industries for long-distance and large-capacity conveying of various bulk materials. When the belt conveyor runs without load or with light load, due to the imbalance between the tension of the conveying belt and its own weight, the phenomenon of belt fluttering is likely to occur. This will not only affect the normal operation of the belt conveyor, but also may lead to damage to the belt conveyor and safety accidents; in addition, during the material conveying process, due to the vibration of the belt conveyor and the fluidity of the materials, some materials will overflow from the edge of the conveying belt and fall onto the rotating conveying belt, which will not only cause waste of materials, but also may cause additional wear and damage to the belt conveyor.

[0003] In order to solve the above problems, the existing technical solutions usually install protective plates or baffles on both sides of the belt conveyor to prevent material overflow. However, these solutions often have poor effects and cannot completely solve the problems of belt fluttering and material overflow. Therefore, it is very necessary to propose a new type of protective measure to make up for the above defects. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above technical deficiencies, and propose a protective frame for a crawler belt conveyor to solve the technical problems proposed in the background art.

[0005] To achieve the above technical purpose, the technical solution of the utility model provides a protective frame for a crawler belt conveyor, which includes a pressing plate support arranged on the belt conveyor supports on both sides of the conveying belt. A pressing plate is arranged on the top of the pressing plate support. A rotating shaft is arranged on the pressing plate. The rotating shaft is parallel to the conveying belt and its two ends are rotatably connected to the pressing plate support. A transmission mechanism is arranged on the belt conveyor support. The transmission mechanism is connected to the rotating shaft to drive its rotation. Pressing wheel holes and hoppers are respectively arranged on the pressing plates on both sides of the rotating shaft. A pressing wheel is arranged in the pressing wheel hole. The wheel shaft of the pressing wheel is perpendicular to the rotating shaft. When the hopper rotates to the lower part of the conveying belt, the hopper is located between the pressing plate and the belt.

[0006] Furthermore, the transmission mechanism includes a worm gear and a worm. The worm gear is arranged on the rotating shaft. The worm is rotatably arranged on the pressing plate support and meshes with the worm gear. A transmission bar and a driving mechanism are arranged on the belt conveyor support. A gear is arranged on the pressing plate support. The gear meshes with the transmission bar. The gear is connected to the worm. The driving mechanism drives the transmission bar to reciprocate along its length direction on the belt conveyor support.

[0007] Further, through holes are provided on the pressing plate bracket, the transmission bar passes through the through holes, a driving disc is provided on the central axis of the gear, and a driven disc is provided on the worm. The driving disc and the driven disc are connected by a transmission belt.

[0008] Further, the driving mechanism is a handwheel or a servo motor, and the output shaft of the handwheel or the servo motor is engaged with the transmission bar.

[0009] Further, the pressing plate bracket is arranged between two adjacent belt rollers on the belt conveyor bracket. A pressing wheel seat is provided on the pressing plate. The hopper and the pressing wheel seat are respectively arranged on two sides of the pressing plate. The wheel shaft of the pressing wheel is arranged on the pressing wheel seat and the distance between it and the pressing plate is adjustable.

[0010] Compared with the prior art, the beneficial effects of the present utility model include:

[0011] 1. In the present utility model, a pressing plate is provided at the top of the pressing plate bracket, and a pressing wheel and a hopper are provided on the pressing plate. The pressing wheel can tightly press the conveyor belt, effectively preventing the phenomenon of belt fluttering. This not only reduces the abnormal wear of the conveyor belt and extends its service life, but also ensures the continuous and stable operation of the belt conveyor. In addition, the hopper can timely receive the materials overflowing from the edge of the conveyor belt during operation, eliminating the potential safety hazards caused by material scattering, thereby greatly improving the overall work efficiency and operation safety.

[0012] 2. In the present utility model, the pressing plate is driven to rotate by a worm and worm gear. Utilizing the self-locking characteristic of its transmission, when an external force acts on the pressing plate, the worm and worm gear mechanism can effectively prevent reverse rotation, ensuring the stability and safety of the transmission. This not only makes the operation more stable and precise; in addition, the use of a handwheel or a servo motor for driving realizes the rapid switching of the working state of the pressing plate, reducing the operation difficulty. Description of the Drawings

[0013] Figure 1 is a schematic diagram of a protective frame for a crawler belt conveyor provided by the present utility model;

[0014] Figure 2 is an enlarged view of part A of the schematic diagram of a protective frame for a crawler belt conveyor provided by the present utility model;

[0015] Figure 3 is a schematic diagram of the pressing plate of the schematic diagram of a protective frame for a crawler belt conveyor provided by the present utility model.

[0016] In the figure: belt conveyor bracket 1, belt roller 2, pressing plate bracket 3, through hole 301, conveyor belt 4, pressing plate 5, rotating shaft 501, pressing wheel hole 502, pressing wheel seat 503, hopper 504, pressing wheel 6, transmission bar 7, worm 8, worm gear 9, driven disc 10, gear 11, driving disc 12, transmission belt 13. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] Reference Figures 1 - 3 The utility model provides a protective frame for a crawler belt conveyor, including a pressure plate bracket 3 arranged on a belt conveyor bracket 1 on both sides of a conveyor belt 4. In actual applications, the pressure plate bracket 3 is usually arranged between two adjacent belt rollers 2 on the belt conveyor bracket 1. A pressure plate 5 is arranged on the top of the pressure plate bracket 3, and a rotating shaft 501 is arranged on the pressure plate 5. The rotating shaft 501 is parallel to the conveyor belt 4, and its two ends are rotatably connected to the pressure plate bracket 3. In order to drive the rotation of the pressure plate 5, a transmission mechanism is arranged on the belt conveyor bracket 1. The transmission mechanism is connected to the rotating shaft 501, and drives the pressure plate 5 to rotate by driving the rotating shaft 501. Specifically, the transmission mechanism includes a worm wheel 8 and a worm 9. The worm wheel 8 is arranged on the rotating shaft 501, and the worm 9 is rotatably arranged on the pressure plate bracket 3 and meshed with the worm wheel 8. The pressure plates 5 on both sides of the rotating shaft 501 are respectively provided with pressure wheel holes 502 and hoppers 504. A pressure wheel 6 is arranged in the pressure wheel hole 502. The pressure plate 5 is also provided with a pressure wheel seat 503 for supporting the pressure wheel 6. The wheel axle of the pressure wheel 6 is arranged on the pressure wheel seat 503 and is perpendicular to the rotating shaft 501.

[0019] When the belt conveyor is unloaded, the pressure wheel 6 rotates with the pressure plate 5 to the conveyor belt 4 and presses the conveyor belt 4 against the belt roller 2 to avoid the occurrence of the "ribbon" phenomenon; the self-locking characteristics of the worm gear and the worm effectively ensure the good contact between the pressure wheel 6 and the conveyor belt 4 when working, and the pressure between the pressure wheel 6 and the conveyor belt 4 can be changed by adjusting the pressure wheel seat 503 to adapt to belts of different specifications;

[0020] When the belt conveyor is conveying materials normally, the pressing plate 5 rotates to an appropriate position, at which point the hopper 504 is exactly between the pressing plate 5 and the conveyor belt 4. At this point, materials overflowing from the edge of the conveyor belt 4 slide along the pressing plate 5 into the hopper 504 to prevent them from falling onto the rotating belt. When the pressing plate 5 rotates in the opposite direction again, the opening of the hopper 504 faces downward as the pressing plate 5 rotates, and the materials inside are discharged to the outside of the belt conveyor under the action of gravity.

[0021] Reference Figure 2, a transmission bar 7 and a driving mechanism are further provided on the belt conveyor support 1. A through hole 301 is provided on the pressing plate support 3 for the transmission bar 7 to pass through. A gear 11 is rotatably arranged on the pressing plate support 3 and meshes with the transmission bar 7, thereby restricting the transmission bar 7 on the pressing plate support 3; a driving disc 12 is arranged on the central axis of the gear 11, and a driven disc 10 is arranged on the worm 9. The driving disc 12 and the driven disc 10 are connected by a transmission belt 13; during implementation, the driving mechanism can be selected as a handwheel or a servo motor, the output shaft of the handwheel or the servo motor meshes with the transmission bar 7, and the movement of the transmission bar 7 is driven by rotating the handwheel or starting the servo motor, thereby driving the pressing plate 5 to rotate through the worm gear 8 to switch the working state of the device.

[0022] The specific implementation manners of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A protective frame for a crawler belt conveyor, comprising a pressing plate bracket arranged on a belt conveyor bracket on both sides of a conveyor belt, wherein a pressing plate is arranged at the top of the pressing plate bracket, and it is characterized in that: A rotating shaft is provided on the pressing plate. The rotating shaft is parallel to the conveyor belt and its two ends are rotatably connected to the pressing plate bracket. A transmission mechanism is provided on the belt conveyor bracket. The transmission mechanism is connected to the rotating shaft to drive it to rotate. Pressing wheel holes and hoppers are respectively provided on the pressing plates on both sides of the rotating shaft. A pressing wheel is arranged inside the pressing wheel holes. The axle of the pressing wheel is perpendicular to the rotating shaft. When the hopper rotates to the lower part of the conveyor belt, the hopper is located between the pressing plate and the belt.

2. The protective frame for a crawler belt conveyor according to claim 1, characterized in that: The transmission mechanism includes a worm gear and a worm. The worm gear is arranged on the rotating shaft. The worm is rotatably arranged on the pressing plate bracket and meshes with the worm gear. A transmission bar and a driving mechanism are provided on the belt conveyor bracket. A gear is provided on the pressing plate bracket. The gear meshes with the transmission bar. The gear is connected to the worm. The driving mechanism drives the transmission bar to reciprocate along its length direction on the belt conveyor bracket.

3. The protective frame for a crawler belt conveyor according to claim 2, wherein: A through hole is provided on the pressing plate bracket. The transmission bar passes through the through hole. A driving disk is arranged on the central axis of the gear. A driven disk is arranged on the worm. The driving disk and the driven disk are connected by a transmission belt.

4. The protective frame for a crawler belt conveyor according to claim 2 or 3, characterized in that: The driving mechanism is a handwheel or a servo motor. The output shaft of the handwheel or the servo motor meshes with the transmission bar.

5. The protective frame for a crawler belt conveyor according to claim 4, characterized in that: The pressing plate bracket is arranged between two adjacent belt rollers on the belt conveyor bracket. A pressing wheel seat is provided on the pressing plate. The hopper and the pressing wheel seat are respectively arranged on two sides of the pressing plate. The axle of the pressing wheel is arranged on the pressing wheel seat and the distance between it and the pressing plate is adjustable.

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