Safety protection device of stacker

Abstract

A safety protection device of a stacker relates to the field of stackers and comprises two groups of clamping frames, a rotating wheel is rotatably connected onto each clamping frame, a clamping groove is arranged on each rotating wheel, an anti-tearing pull rope is mounted in the two clamping grooves, and two ends of each anti-tearing pull rope are connected onto a bidirectional pull rope switch. The safety and the stability of the operation of the conveyor belt mechanism are effectively improved. The device can respond to abnormal conditions of materials on the conveying belt in time, further damage caused by tearing or blocking is avoided, and therefore the service life of the conveying belt is prolonged, and the maintenance cost is reduced. And meanwhile, the device can adapt to conveying belts with different heights through the adjusting function, and the practicability and flexibility of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stacking machines, and in particular to a safety protection device for stacking machines. Background Art

[0002] Stackers are key equipment in the field of material handling and are widely used in various industries such as mines, ports, electricity, and chemicals. As an important component of stackers, cantilever belts are responsible for transporting materials from one place to another. However, in actual operation, cantilever belts face risks such as tearing and damage, which not only affect the safe and stable operation of the equipment, but may also cause production interruptions and economic losses.

[0003] The original stacker cantilever belt tear-proof device design has certain limitations. The traditional design only sets an anti-tear device on the non-working surface of the belt return, which may be sufficient to deal with some conventional risks, but in the face of extreme situations such as instantaneous large-flow material impact or belt wire breakage on the load-bearing surface, its reaction speed and protection effect are stretched. Especially after the wire breaks, the broken wire may be entangled on the roller. As the belt continues to run, this entanglement will become more and more serious, leading to the rapid expansion of belt damage.

[0004] Chinese patent CN112938402A discloses a belt longitudinal tear protection device, the core of which is to detect the tearing of the belt through a transmission unit composed of a steel cable, a moving part and a micro switch. When the belt is torn, the steel cable will be pulled, and then the micro switch will be triggered through the moving part to achieve the protection function. However, due to the complex working environment, factors such as vibration and dust may cause the micro switch to be triggered by mistake, resulting in false alarms. Utility Model Content

[0005] The purpose of the utility model is to solve the problems raised in the above background technology, and then propose a safety protection device for a stacker.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A safety protection device for a stacker comprises two groups of clamping frames, wherein the clamping frames are rotatably connected to a rotating wheel, the rotating wheel is provided with a slot, anti-tear ropes are installed in the two slots, and the two ends of the anti-tear ropes are connected to a two-way rope switch.

[0008] Furthermore, the clamping frame is located directly below the conveyor belt mechanism, and the conveyor belt mechanism includes two rollers, and the two rollers are connected by belt drive.

[0009] Furthermore, the clamping frame includes a vertical slide groove, the top of the vertical slide groove is slidably fitted with an upper lifting rod, one side of the vertical slide groove is threadedly connected with a vertical adjustment knob, and the vertical adjustment knob can make the upper lifting rod move along the vertical slide groove and position it at a place on the vertical slide groove, the top of the upper lifting rod is provided with a rotating shaft, and the rotating shaft is rotatably connected with a rotating wheel, and a lower clamping plate is provided at the bottom of the vertical slide groove, and an upper clamping plate is slidably fitted in the vertical slide groove, and a flexible spring is provided between the upper clamping plate and the lower clamping plate, and the flexible spring drives the upper clamping plate close to the lower clamping plate.

[0010] Furthermore, a central hole for accommodating the installation of the rotating shaft is provided in the middle of the rotating wheel.

[0011] Furthermore, an adjustment plate is fixedly connected to the upper lifting rod, and a flexible sponge is installed on the adjustment plate.

[0012] Furthermore, the adjusting plate is provided with a long hole, the upper lifting rod is provided with a threaded hole, and the bolt passes through the long hole and is threadedly connected in the threaded hole.

[0013] Furthermore, the flexible sponge abuts against the bottom of the rotating wheel.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model effectively improves the safety and stability of the conveyor belt mechanism operation by setting the clamping frame, the rotating wheel, the tear-proof pull rope and other components. The device can respond to the abnormal situation of the material on the conveyor belt in time to avoid further damage caused by tearing or blockage, thereby extending the service life of the conveyor belt and reducing maintenance costs. At the same time, its adjustment function enables the device to adapt to conveyor belts of different heights, enhancing its practicality and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 is a schematic diagram of the structure of the runner;

[0017] Figure 3 for Figure 1 A partial enlarged view of the middle A;

[0018] Among them: 1 roller, 2 belt, 31 vertical slide, 32 upper lifting rod, 33 vertical adjustment knob, 34 upper clamping plate, 35 flexible spring, 36 lower clamping plate, 37 rotating wheel, 371 center hole, 372 slot, 38 adjustment plate, 39 bolt, 310 flexible sponge, 311 rotating shaft, 312 anti-tear rope. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0020] like Figure 1-Figure 3 As shown, a safety protection device for a stacker is located directly below the conveyor belt mechanism, including two sets of clamping frames, the clamping frames are located directly below the conveyor belt mechanism, a rotating wheel 37 is rotatably connected to the clamping frames, a slot 372 is provided on the rotating wheel, and anti-tear ropes 312 are installed in the two slots. When the material on the conveyor belt is abnormal, the anti-tear ropes can respond in time to prevent the tear from expanding. The two ends of the anti-tear rope 312 are connected to a two-way rope switch to achieve rapid response and timely shutdown of the conveyor belt mechanism.

[0021] The solution is refined, in which the conveyor belt mechanism includes two rollers 1, and the two rollers are driven and connected by a belt 2.

[0022] In at least one embodiment, the clamping frame includes a vertical slide 31, the top of the vertical slide is slidably matched with an upper lifting rod 32, and one side of the vertical slide is threadedly connected with a vertical adjustment knob 33, which is convenient for operators to make quick and accurate adjustments. The vertical adjustment knob can make the upper lifting rod move along the vertical slide and be positioned at a place on the vertical slide. By rotating the vertical adjustment knob, the upper lifting rod can move along the vertical slide and be positioned at any position on the vertical slide, meeting a variety of usage scenarios. A rotating shaft 311 is provided at the top of the upper lifting rod, and a rotating wheel is rotatably connected to the rotating shaft. A lower clamping plate 36 is provided at the bottom of the vertical slide, and an upper clamping plate 34 is slidably matched in the vertical slide. A flexible spring 35 is provided between the upper clamping plate and the lower clamping plate, and the flexible spring drives the upper clamping plate to approach the lower clamping plate to achieve adaptive clamping, ensuring that the protective device can maintain a stable clamping effect under various working conditions.

[0023] Furthermore, a central hole 371 for accommodating the installation of the rotating shaft is provided in the middle of the rotating wheel, so as to ensure that the rotating wheel will not fall off or produce unnecessary shaking during the rotation process.

[0024] In at least one embodiment, an adjustment plate 38 is fixedly connected to the upper lifting rod, providing the operator with more adjustment options. In conjunction with this, the adjustment plate is provided with a long hole, and the upper lifting rod is provided with a threaded hole, wherein the bolt 39 passes through the long hole and is threadedly connected in the threaded hole to achieve the fixation of the two. The adjustment plate and the upper lifting rod are firmly fixed, while ensuring the flexibility of adjustment. A flexible sponge 310 is installed on the adjustment plate.

[0025] According to a refinement of the solution, the flexible sponge abuts against the bottom of the rotating wheel.

[0026] Working method, place the protective device directly below the conveyor mechanism. Make sure that the two rollers 1 are connected by the belt 2 drive and that the belt is in normal working condition. Fix the clamping frame vertical slide slots 31 in appropriate positions, making sure that they are directly below the conveyor mechanism. Adjust the height of the upper lifting rod 32 by the vertical adjustment knob 33 to adapt it to the height of the conveyor belt. Install the rotating wheel 37 on the rotating shaft 311 at the top of the upper lifting rod 32, and make sure that the rotating wheel can rotate freely. Place the two ends of the anti-tear rope 312 in the slots 372 of the two rotating wheels 37 respectively. Make sure that the anti-tear rope is tight and will not slip out of the slot. Connect the two ends of the anti-tear rope to the two-way rope switch. Fix the adjustment plate 38 on the upper lifting rod 32, pass the bolts through the long holes on the adjustment plate and thread them into the threaded holes on the upper lifting rod. Install the flexible sponge 310 on the adjustment plate, making sure that it rests against the bottom of the rotating wheel 37,

[0027] When the conveyor belt mechanism is operating normally, the tear-resistant drawstring 312 is in a taut state and the two-way drawstring switch is in a closed state. If the material on the conveyor belt is torn or stuck, the tear-resistant drawstring 312 will be pulled, thereby triggering the two-way drawstring switch to open, thereby stopping the operation of the conveyor belt mechanism to prevent further damage. The operator can check the material on the conveyor belt, clean up the blocked or torn material, and then reset the two-way drawstring switch to restore the normal operation of the conveyor belt mechanism.

[0028] When the conveyor belt mechanism vibrates slightly, the pull rope is in the slot and the belt will first contact the wheel. A flexible sponge is provided at the bottom of the wheel to prevent the wheel from rotating when encountering slight vibrations, thereby eliminating false alarms of the conveyor belt caused by slight vibrations.

[0029] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A safety protection device for a stacker, characterized in that: The invention comprises two groups of clamping frames, wherein a rotating wheel is rotatably connected to the clamping frame, a clamping slot is arranged on the rotating wheel, and tear-proof drawstrings are installed in the two clamping slots, and the two ends of the tear-proof drawstrings are connected to the two-way drawstring switch.

2. A safety protection device for a stacker according to claim 1, characterized in that: The clamping frame is located directly below the conveyor belt mechanism, which includes two rollers, which are connected by belt drive.

3. A safety protection device for a stacker according to claim 1 or 2, characterized in that: The clamping frame includes a vertical slide groove, an upper lifting rod is slidably matched with the top of the vertical slide groove, and a vertical adjustment knob is threadedly connected to one side of the vertical slide groove. The vertical adjustment knob can make the upper lifting rod move along the vertical slide groove and position it at a place on the vertical slide groove. A rotating shaft is provided on the top of the upper lifting rod, and a rotating wheel is rotatably connected to the rotating shaft. A lower clamping plate is provided at the bottom of the vertical slide groove, and an upper clamping plate is slidably matched in the vertical slide groove. A flexible spring is provided between the upper clamping plate and the lower clamping plate, and the flexible spring drives the upper clamping plate close to the lower clamping plate.

4. A safety protection device for a stacker according to claim 3, characterized in that: The middle of the rotating wheel is provided with a central hole for accommodating the installation of the rotating shaft.

5. A safety protection device for a stacker according to claim 3, characterized in that: The upper lifting rod is also fixedly connected with an adjustment plate, and a flexible sponge is installed on the adjustment plate.

6. A safety protection device for a stacker according to claim 5, characterized in that: The adjusting plate is provided with a long hole, the upper lifting rod is provided with a threaded hole, and the bolt passes through the long hole and is threadedly connected in the threaded hole.

7. A safety protection device for a stocker according to claim 6, characterized in that: The flexible sponge abuts against the bottom of the rotating wheel.

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