Device for preventing steel wire rope from disengaging from groove

Abstract

The invention relates to the technical field of silicon single crystal rod processing equipment, in particular to a device for preventing a steel wire rope from disengaging from a groove, which comprises a weighing sensor, a fixed pulley mounted at the weighing end of the weighing sensor, a steel wire rope placed on the fixed pulley, a feeding pipe mounted at one end of the steel wire rope, and a weight transmitter connected with the weighing sensor through a line. The weight transmitter is connected with a voltage comparison module through a line, the voltage comparison module is connected with a crystal drop relay through a line, the crystal drop relay is connected with a motor through a line, and an output shaft of the motor is connected with the other end of the steel wire rope. According to the device for preventing the steel wire rope from disengaging from the groove, by integrating the weighing sensor, the weight transmitter, the voltage comparison module, the crystal drop relay and other assemblies, the device can monitor the weight change of the steel wire rope in real time. And when the weight of the steel wire rope is abnormal, the device can automatically respond to stop the action of the motor in time, so that the steel wire rope is prevented from falling off from the groove due to no-load descending after weightlessness, and equipment damage and safety accidents are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of single crystal silicon rod processing equipment, and specifically, to a device for preventing wire ropes from coming out of grooves. Background Art

[0002] In the technical field of single crystal silicon rod processing equipment, wire ropes are often used in various lifting, traction or positioning mechanisms. Especially in single crystal furnace equipment, wire ropes are used to lift or rotate crystals. The wire rope coming out of the groove means that it disengages from the groove of the pulley or drum, which will affect the operation of the equipment, cause equipment damage, and even lead to safety accidents. The wire rope coming out of the groove in a single crystal furnace may be caused by various reasons. Common reasons include: (1) Uneven wire rope tension: The tension of the wire rope is not adjusted properly during installation, resulting in unbalanced force and deviation from the pulley groove during operation. (2) Misalignment of the pulley / drum: The axis of the pulley or drum is not perpendicular to the wire rope running direction, causing the wire rope to slide laterally. (3) Initial position deviation: The wire rope is not correctly inserted into the groove during installation and gradually comes out during operation. (4) Pulley groove wear: Long-term use causes deformation, wear or edge breakage of the pulley groove, making it unable to effectively restrain the wire rope. (5) Wire rope aging or deformation: The wire rope forms hard bends due to fatigue, rust, broken wires or local bending, and cannot fit the groove shape. (6) Loose bearings or brackets: The pulley bearings are worn or the brackets are not firmly fixed, resulting in pulley wobbling and causing the wire rope to come out of the groove. (7) Overload operation: The load weight exceeds the design load-bearing capacity of the wire rope or pulley, causing the wire rope to be pulled out of the groove position. (8) Weightless operation: The wire rope continues to descend after weightlessness at the load-bearing end, which will cause the wire rope to swing inertially and disengage from the pulley groove. (9) Vibration or impact: External vibration of the equipment (such as the operation of nearby machinery) or internal impact (such as crystal collision) causes the wire rope to jump out of the groove.

[0003] During the production of single crystal silicon rods, a refueling device is often required for secondary feeding. The feeding pipe filled with polycrystalline materials is hoisted at the end of the wire rope and slowly descends above the liquid level for secondary feeding. During the feeding process, material jamming may occasionally occur, resulting in weightless operation of the wire rope and its coming out of the groove. The consequences are either that the feeding pipe cannot be lifted normally and the furnace has to be stopped, leading to the scrapping of the entire furnace of materials, or that the wire rope is misaligned and continues to run outside the pulley groove and is pulled off, not only causing the scrapping of the entire furnace of materials but also damaging the lifting device.

[0004] Traditionally, in order to prevent the wire rope from coming out of the groove, operators need to regularly check the state of the wire rope and make timely adjustments or replacements when abnormalities are found. However, this method has obvious limitations, especially for the wire rope coming out of the groove during the secondary feeding of a hot single crystal furnace as described above, which cannot be checked manually. Therefore, there is an urgent need for a device for preventing wire ropes from coming out of the groove that can monitor the state of the wire rope in real time and automatically take corresponding measures. Summary of the Invention

[0005] The object of the present invention is to provide a device for preventing wire ropes from coming off the grooves, so as to solve the problem that the wire ropes of single crystal furnaces may come off the grooves due to various reasons, especially weightless operation, as mentioned in the above background art.

[0006] To achieve the above object, the present invention provides a device for preventing wire ropes from coming off the grooves, which includes a weighing sensor. A fixed pulley is installed at the weighing end of the weighing sensor. The wire rope is placed on the fixed pulley. One end of the wire rope is installed with a charging pipe. The weighing sensor is connected with a weight transmitter through a wire. The weight transmitter is connected with a voltage comparison module through a wire. The voltage comparison module is connected with a crystal dropping relay through a wire. The crystal dropping relay is connected with a motor through a wire. The output shaft of the motor is connected with the other end of the wire rope.

[0007] Preferably, the weighing sensor is used to sense the weight of the wire rope and transmit the weight signal to the weight transmitter. The weight transmitter receives the weight signal, performs signal conversion and amplification, and then transmits it to the voltage comparison module. The voltage comparison module receives the amplified voltage signal and compares it with the set voltage.

[0008] Preferably, the control end of the crystal dropping relay is connected with the output end of the voltage comparison module. The crystal dropping relay is electrically connected with the input end of the motor through a contactor. The crystal dropping relay controls the action of the motor according to the comparison result of the voltage comparison module.

[0009] Preferably, when the voltage signal transmitted by the weight transmitter is less than the set voltage, the voltage comparison module controls the crystal dropping relay to stop working, and then the motor stops acting, preventing the wire rope from continuing to descend.

[0010] Preferably, the set voltage is the voltage value transmitted by the weight transmitter after the weighing sensor senses the weight of the wire rope when the charging pipe is hung.

[0011] Preferably, the motor is electrically connected with the crystal dropping relay. The crystal dropping relay controls the action of the motor to drive the wire rope to descend.

[0012] Preferably, the voltage comparison module is connected with a motor control board and an industrial control computer through wires. The voltage comparison module is also connected with a power supply through a wire.

[0013] Preferably, it further includes an alarm device. The alarm device is connected with the voltage comparison module. When the voltage signal transmitted by the weight transmitter is less than the set voltage, the alarm device emits an alarm signal to remind the operator to pay attention.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In this wire rope anti - derailment device, by integrating components such as a weighing sensor, a weight transmitter, a voltage comparison module, and a crystal - dropping relay, the device can monitor the weight change of the wire rope in real - time. When the weight of the wire rope is abnormal (for example, the weight of the feeding pipe decreases due to material jamming), the device can automatically respond and stop the motor operation in time, preventing the wire rope from continuing to drop idly after weight loss and causing derailment, effectively avoiding equipment damage and safety accidents.

[0016] This device can realize real - time monitoring and automatic control of the wire rope state, greatly improving the safety and reliability of the equipment. By automatically stopping the motor operation, the device can prevent potential safety hazards in the first time and ensure the smooth progress of the production process. The device of the present invention avoids the interference of human judgment through automatic monitoring and control, improving the accuracy and reliability of monitoring. Brief Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the present invention;

[0018] Figure 2 is the partial structural schematic diagram of the present invention;

[0019] The meanings of each label in the figure are as follows:

[0020] 1. Voltage comparison module; 2. Weighing sensor; 3. Weight transmitter; 4. Crystal - dropping relay; 5. Fixed pulley; 51. Wire rope; 52. Feeding pipe; 6. Motor; 7. Contactor; 8. Motor control board; 9. Industrial control computer; 10. Power supply. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] The present invention provides a wire rope anti - derailment device, as Figure 1 - Figure 2As shown in the figure, it includes a weighing sensor 2. A fixed pulley 5 is installed at the weighing end of the weighing sensor 2. A wire rope 51 is placed on the fixed pulley 5. One end of the wire rope 51 is installed with a feeding pipe 52. The weighing sensor 2 is connected to a weight transmitter 3 through a wire. The weight transmitter 3 is connected to a voltage comparison module 1 through a wire. The voltage comparison module 1 is connected to a crystal drop relay 4 through a wire. The crystal drop relay 4 is connected to a motor 6 through a wire. The output shaft of the motor 6 is connected to the other end of the wire rope 51. The weighing sensor 2 accurately senses the weight of the wire rope 51 and the feeding pipe 52, and transmits this weight signal to the weight transmitter 3 through a wire for signal conversion and amplification. Subsequently, the amplified signal is transmitted to the voltage comparison module 1 and compared with a preset set voltage. This comparison result directly determines the working state of the crystal drop relay 4, and thus controls the operation of the motor 6.

[0023] When the weight of the wire rope 51 changes abnormally (such as the weight of the feeding pipe 52 decreases due to material jamming), the voltage comparison module 1 will quickly identify this change and immediately stop the operation of the motor 6 through the crystal drop relay 4. This automatic response mechanism effectively prevents the wire rope 51 from continuing to drop empty after weight loss and getting out of the groove, avoiding possible equipment damage and safety accidents caused thereby.

[0024] In this embodiment, the weighing sensor 2 is used to sense the weight of the wire rope 51 and transmit the weight signal to the weight transmitter 3. The weight transmitter 3 receives the weight signal, performs signal conversion and amplification, and then transmits it to the voltage comparison module 1. The voltage comparison module 1 receives the amplified voltage signal and compares it with the set voltage. The weighing sensor 2 can accurately sense the weight of the wire rope 51 and stably transmit this weight signal to the weight transmitter 3. After receiving the weight signal, the weight transmitter 3 performs signal conversion and amplification to ensure that the signal can be accurately and clearly transmitted to the next-level voltage comparison module 1. This design ensures the accurate transmission and processing of the weight signal, providing a reliable basis for subsequent monitoring and control.

[0025] Specifically, the control end of the crystal drop relay 4 is connected to the output end of the voltage comparison module 1. The crystal drop relay 4 is electrically connected to the input end of the motor 6 through a contactor 7. The crystal drop relay 4 controls the operation of the motor 6 according to the comparison result of the voltage comparison module 1. The voltage comparison module 1 receives the amplified voltage signal and compares it with the set voltage. This design realizes the real-time monitoring and automatic judgment of the weight of the wire rope 51, providing the possibility for quickly responding to abnormal situations.

[0026] Furthermore, when the voltage signal transmitted by the weight transmitter 3 is less than the set voltage, the voltage comparison module 1 controls the crystal drop relay 4 to stop working, thereby causing the motor 6 to stop operating and preventing the wire rope 51 from continuing to descend. This mechanism effectively prevents the wire rope 51 from continuing to descend idly after losing weight and causing it to come out of the groove, avoiding equipment damage and safety accidents.

[0027] Furthermore, the set voltage is the voltage value transmitted through the weight transmitter 3 after the weighing sensor 2 senses the weight of the wire rope 51 when hanging the feeding pipe 52. This setting ensures that when the wire rope is in a normal state, the voltage signal can be stabilized near the set voltage, providing a benchmark for accurately judging abnormal situations.

[0028] Furthermore, the motor 6 is electrically connected to the crystal drop relay 4, and the crystal drop relay 4 controls the operation of the motor 6 to drive the wire rope 51 to descend. This design realizes precise control of the motor 6, enabling the wire rope 51 to descend as expected.

[0029] Furthermore, the voltage comparison module 1 is connected to the motor control board 8 and the industrial control computer 9 through lines, and the voltage comparison module 1 is also connected to the power supply 10 through lines. This design makes the entire system more intelligent and controllable. The motor control board 8 can further refine the control of the motor 6, while the industrial control computer 9 can realize functions such as remote monitoring and data recording.

[0030] Furthermore, it also includes an alarm device. The alarm device is connected to the voltage comparison module 1. When the voltage signal transmitted by the weight transmitter 3 is less than the set voltage, the alarm device emits an alarm signal to remind the operator to pay attention. This design enhances the safety performance of the system, enabling the operator to handle abnormal situations in a timely manner and ensuring the safety and smooth progress of production.

[0031] When the anti-wire-rope-out-of-groove device of the present invention is in use, first, the weighing sensor 2 is installed at the weighing end of the fixed pulley 5 to accurately sense the load weight of the wire rope 51. When the weights of the wire rope 51 and the feeding pipe 52 change, the weighing sensor 2 will transmit this weight signal to the weight transmitter 3 through a line.

[0032] The weight transmitter 3 receives the weight signal from the weighing sensor 2 and performs signal conversion and amplification. The amplified signal is transmitted to the voltage comparison module 1 for subsequent comparison processing.

[0033] The voltage comparison module 1 receives the amplified voltage signal and compares it with the preset set voltage. The set voltage is the voltage value transmitted through the weight transmitter 3 after the weighing sensor 2 senses the weight of the wire rope 51 when hanging the feeding pipe, representing the voltage corresponding to the weight signal when the wire rope 51 is in a normal state.

[0034] According to the comparison result of the voltage comparison module 1, if the amplified voltage signal is less than the set voltage, it indicates that the weight of the wire rope 51 has changed abnormally. At this time, the voltage comparison module 1 will output a control signal to the crystal drop relay 4 to control it to stop working. The crystal drop relay 4 is electrically connected to the input end of the motor 6 through the contactor 7. When the crystal drop relay 4 stops working, the motor 6 will also stop operating. The stop operation of the motor 6 effectively prevents the wire rope 51 from continuing to descend without load after losing weight and getting out of the groove, avoiding possible equipment damage and safety accidents caused thereby.

[0035] The voltage comparison module 1 is also connected with a motor control board 8, an industrial control computer 9, and a power supply 10 through lines. The motor control board 8 can further refine the control of the motor 6 to achieve more precise motion control. The industrial control computer 9 can realize functions such as remote monitoring and data recording, facilitating the operator to understand the equipment status at any time.

[0036] The system also includes an alarm device. When the voltage signal transmitted by the weight transmitter 3 is less than the set voltage, the alarm device will emit an alarm signal. The alarm signal reminds the operator to pay attention to the equipment status and handle abnormal situations in a timely manner to ensure the safe and smooth progress of production.

[0037] Finally, it should be noted that the electronic components in the voltage comparison module 1, the weighing sensor 2, the weight transmitter 3, the crystal drop relay 4, etc. in this embodiment are all general standard components or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or obtained through conventional experimental methods. At the idle place of this device, all the above electrical components are respectively connected through wires. The specific connection means should refer to the working sequence of each electrical component in the above working principle to complete the electrical connection, which are all well-known technologies in the art.

[0038] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preventing a steel wire rope from slipping out of a groove, comprising a weighing sensor (2), characterized in that: The weighing end of the weighing sensor (2) is equipped with a fixed pulley (5), a steel wire rope (51) is placed on the fixed pulley (5), one end of the steel wire rope (51) is equipped with a feeding tube (52), the weighing sensor (2) is connected to a weight transmitter (3) via a line, the weight transmitter (3) is connected to a voltage comparison module (1) via a line, the voltage comparison module (1) is connected to a crystal drop relay (4) via a line, the crystal drop relay (4) is connected to a motor (6) via a line, and the output shaft of the motor (6) is connected to the other end of the steel wire rope (51).

2. The device for preventing a steel wire rope from slipping out of a groove according to claim 1, characterized in that: The weighing sensor (2) is used to sense the weight of the steel wire rope (51) and transmit the weight signal to the weight transmitter (3). The weight transmitter (3) receives the weight signal and performs signal conversion and amplification before transmitting the signal to the voltage comparison module (1). The voltage comparison module (1) receives the amplified voltage signal and compares it with a set voltage.

3. The device for preventing a steel wire rope from slipping out of a groove according to claim 1, characterized in that: The control end of the crystal drop relay (4) is connected to the output end of the voltage comparison module (1), and the crystal drop relay (4) is electrically connected to the input end of the motor (6) through the contactor (7). The crystal drop relay (4) controls the action of the motor (6) according to the comparison result of the voltage comparison module (1).

4. The device for preventing a steel wire rope from slipping out of a groove according to claim 3, characterized in that: When the voltage signal transmitted by the weight transmitter (3) is less than the set voltage, the voltage comparison module (1) controls the crystal drop relay (4) to stop working, thereby stopping the motor (6) and preventing the steel wire rope (51) from continuing to descend.

5. The device for preventing a steel wire rope from slipping out of a groove according to claim 4, characterized in that: The set voltage is the voltage value transmitted through the weight transmitter (3) after the weighing sensor (2) senses the weight of the steel wire rope (51) when the feeding tube (52) is hung.

6. The device for preventing a steel wire rope from slipping out of a groove according to claim 1, characterized in that: The motor (6) is electrically connected to the crystal lowering relay (4), and the crystal lowering relay (4) controls the action of the motor (6) to drive the steel wire rope (51) to descend.

7. The device for preventing a steel wire rope from slipping out of a groove according to claim 6, characterized in that: The voltage comparison module (1) is connected to a motor control board (8) and an industrial computer (9) via a line, and the voltage comparison module (1) is also connected to a power supply (10) via a line.

8. The device for preventing a steel wire rope from slipping out of a groove according to claim 1, characterized in that: It also includes an alarm device, which is connected to the voltage comparison module (1). When the voltage signal transmitted by the weight transmitter (3) is less than the set voltage, the alarm device sends an alarm signal to alert the operator.

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