Tail rope protection device of multi-rope friction type hoister

Abstract

The utility model relates to the technical field of mechanical equipment, in particular to a multi-rope friction type elevator tail rope protection device which comprises a tail rope brake and protection wheels matched with tail ropes, the protection wheels correspond to the tail ropes in a one-to-one mode, the tail ropes penetrate through the corresponding protection wheels respectively, detection sensors are arranged on the two sides of the protection wheels, cameras are further arranged at the tail ropes, and the cameras are connected with the tail rope brake. The detection sensor and the camera are electrically connected with the tail rope brake. When the tail rope is twisted or deflected, the tail rope can act in a delimited area, then the detection sensor or the camera sends a signal to the tail rope brake, the tail rope brake brakes and stops, and the elevator brakes safely. The tail rope twisting and deflection detection device is reasonable in structure, detection of twisting and deflection of the tail rope is achieved, accidents are prevented from being expanded, and meanwhile the safety of equipment and personnel can be guaranteed; the detection effect is good and the anti-interference capability is strong.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical equipment, and in particular relates to a tail rope protection device for a multi-rope friction hoist. Background Art

[0002] As the throat equipment of mining production, the multi-rope friction hoist bears the important responsibility of transporting personnel and equipment. During the normal operation of the hoisting system, the balance tail rope at the bottom of the well will be severely twisted and deflected, which brings hidden dangers to the safe operation of the hoist. The patent document with application number 202311561569.0 discloses a tail rope kink detection device and a hoisting system, the device comprising: a collision component, one end of the collision component is fixed after passing through the tail rope, and a module to be tested is arranged on the other end; a detection module, the detection module is arranged close to the module to be tested, and the module to be tested is in the detection area of ​​the detection module, when the collision component drives the module to be tested to leave the detection area due to the kink of the tail rope, the detection module sends a detection signal. This patent realizes detection by inserting a collision component at the end of the tail rope, and then using the kink of the tail rope to drive the collision component to pull the module to be tested out of the detection area. However, after the tail rope deviates to a certain extent and contacts the collision component, the detection effect can only be achieved by pulling the module to be tested out of the detection area. The detection sensitivity is low and the detection effect is poor. Therefore, a multi-rope friction hoist tail rope protection device is needed to solve the above technical problems. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, the utility model provides a multi-rope friction hoist tail rope protection device, including a tail rope, a tail rope brake and a protection wheel matched with the tail rope, the tail rope passes through the corresponding protection wheel, detection sensors are provided on both sides of the protection wheel, and a camera is also provided at the tail rope, and the detection sensor and the camera are electrically connected to the tail rope brake. When the tail rope is kinked or deflected, the tail rope will move in the designated area, and then the detection sensor or camera will send a signal to the tail rope brake, the tail rope brake will stop the machine, and the hoist will brake safely. Through both hardware and software methods, the detection of tail rope kinks and deflections can be realized, which not only prevents the expansion of accidents, but also plays an important role in ensuring the safety of equipment and personnel.

[0004] Preferably, it also includes a bottom-hole signal box, a winch room signal box and an elevator electronic control system, wherein the bottom-hole signal box is provided with a control module 1 and an optical fiber transceiver 1 connected to the control module 1, the winch room signal box is provided with a control module 2 and an optical fiber transceiver 2 connected to the control module 2, the detection sensor and the camera are connected to the control module 1, the control module 1 is connected to the control module 2, and the control module 2 is connected to the elevator electronic control system. The detection sensor and the camera collect the tail rope kink signal and transmit the signal to the bottom-hole signal box, the bottom-hole signal box transmits the signal to the winch room signal box through optical fiber, the winch room signal box receives the signal from the bottom-hole signal box, and converts it into a dry contact signal and sends it to the elevator electronic control system, and the elevator electronic control system takes action according to the situation, such as the tail rope brake is engaged and stopped, and the elevator is safely braked.

[0005] Preferably, the detection sensor is an infrared sensor.

[0006] Preferably, the protection wheel comprises a fixed circular ring, a rotating ring is arranged on the fixed circular ring, a circle of grooves is arranged on the inner ring surface of the fixed circular ring, the outer ring of the rotating ring is rotatably connected to the grooves via a bearing, a plurality of arc-shaped protrusions are arranged on the inner ring surface of the rotating ring along the circumferential direction, and the tail rope passes through the center of the rotating ring. The arrangement of the rotating ring and the arc-shaped protrusions allows the rotating ring to rotate under force when the tail rope is kinked and contacts the protrusions, thereby avoiding wear caused by hard friction between the tail rope and the fixed ring.

[0007] Preferably, the inner diameter of the rotating ring is smaller than the inner diameter of the fixed ring, and the induction probe of the detection sensor is fixed on the fixed ring. This arrangement improves the accuracy of detection.

[0008] The utility model also includes other components that enable a multi-rope friction hoist tail rope protection device to be used normally, which are all conventional technical means in the field. In addition, the devices or components not limited in the utility model, such as the tail rope brake, infrared sensor, camera, bottom signal box, winch room signal box and hoist electronic control system, etc., all adopt conventional technical means and conventional equipment in the field.

[0009] The beneficial effects of the utility model are as follows: reasonable structure, realizing detection of kinks and deflections of the tail rope, preventing accidents from expanding, and protecting the safety of equipment and personnel; more sensitive detection, good detection effect, and strong anti-interference ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 It is a structural schematic diagram of a tail rope protection device of a multi-rope friction hoist in an embodiment of the utility model;

[0012] Figure 2 It is a principle diagram of an embodiment of the utility model;

[0013] Figure 3 It is a schematic diagram of the structure of the protection wheel in the embodiment of the utility model.

[0014] In the figure: 1. tail rope; 2. camera; 3. fixed ring; 4. detection sensor; 5. induction probe; 6. bottom hole signal box; 7. winch room signal box; 8. hoisting machine electrical control system; 9. rotating ring; 10. arc-shaped protrusion. DETAILED DESCRIPTION

[0015] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0016] Example

[0017] like Figure 1-3 As shown, the utility model provides a multi-rope friction hoist tail rope protection device, including a tail rope, a tail rope brake and a protection wheel matched with the tail rope 1, the tail rope is provided with multiple roots, the protection wheel is provided with multiple wheels, the protection wheel corresponds to each tail rope 1, the tail rope 1 passes through the corresponding protection wheel, both sides of the protection wheel are provided with detection sensors 4, the tail rope 1 is also provided with a camera 2, the detection sensor 4 and the camera 2 are electrically connected to the brake of the tail rope 1. The protection wheel, the camera and the detection sensor are respectively fixed at the corresponding positions by a bracket, which is the prior art, and the specific structure and fixing method of the bracket are not repeated. When the tail rope 1 is kinked or deflected, the tail rope 1 will move in a designated area (for example, moving a certain range in the protection wheel), and then the detection sensor 4 or the camera 2 will send a signal to the tail rope brake, the tail rope 1 brake is braked and stopped, and the hoist is safely braked. Through hardware and software methods, the detection of kinks and deflections of the tail rope 1 is realized, which prevents the expansion of accidents and plays an important role in ensuring the safety of equipment and personnel.

[0018] It also includes a bottom-hole signal box 6, a winch room signal box 7 and an elevator electric control system 8. The bottom-hole signal box 6 is provided with a control module 1 and an optical fiber transceiver 1 connected to the control module 1. The winch room signal box 7 is provided with a control module 2 and an optical fiber transceiver 2 connected to the control module 2. The detection sensor 4 and the camera 2 are both connected to the control module 1. The camera is an explosion-proof camera with AI function, which can send explosion-proof intelligent video to the bottom-hole signal box 6. The control module 1 is connected to the control module 2, and the control module 2 is connected to the elevator electric control system 8. The detection sensor 4 and the camera 2 collect the kink signal of the tail rope 1 and transmit the signal to the bottom-hole signal box 6. The bottom-hole signal box 6 transmits the signal to the winch room signal box 7 through optical fiber. The winch room signal box 7 receives the signal from the bottom-hole signal box 6 and converts it into a dry contact signal and sends it to the elevator electric control system 8. The elevator electric control system 8 takes action according to the situation, such as the brake of the tail rope 1 is engaged and stopped, and the elevator is safely braked.

[0019] The detection sensor 4 is an infrared sensor.

[0020] The protection wheel includes a fixed circular ring 3, a rotating ring 9 is provided on the fixed circular ring 3, a circle of grooves is provided on the inner ring surface of the fixed circular ring 3, the outer ring of the rotating ring 9 is rotatably connected with the groove through a bearing, a plurality of arc-shaped protrusions 10 are provided on the inner ring surface of the rotating ring 9 along the circumferential direction, and the tail rope 1 passes through the center of the rotating ring 9. The arrangement of the rotating ring 9 and the arc-shaped protrusions 10 allows the rotating ring 9 to rotate under force when the tail rope 1 is kinked and contacts the protrusions, thereby avoiding hard friction between the tail rope 1 and the fixed ring to cause wear.

[0021] The inner diameter of the rotating ring 9 is smaller than the inner diameter of the fixed ring 3, and the induction probe 5 of the detection sensor 4 is fixed on the fixed ring 3. This arrangement improves the accuracy of the detection.

[0022] Working principle: When the tail rope 1 is kinked or deflected, the tail rope 1 will move in the designated area, and then the detection sensor 4 or camera 2 will send a signal to the tail rope brake, the tail rope 1 brake will stop, and the hoist will brake safely. Through hardware and software methods, the detection of kinks and deflections of the tail rope 1 can be realized, which not only prevents the expansion of accidents, but also plays an important role in ensuring the safety of equipment and personnel.

[0023] Specifically, when the tail rope is kinked or deflected, the detection sensor sends an action signal and feeds the signal back to the control module 1 in the bottom of the well signal box. The control module 1 controls the output through the internal logic operation, sends an alarm signal, and transmits the alarm signal to the control module 2 in the winch room signal box through optical fiber. Through internal conversion, the control module 2 outputs the alarm signal, and transmits the alarm signal to the hoist electronic control system through optical fiber. An explosion-proof camera with AI function is installed at the tail rope. Through the intelligent video AI algorithm and the demarcation area (this is the existing technology and will not be repeated), the deflection and kink of the tail rope are analyzed and identified. When the tail rope is kinked, the tail rope will move in the demarcated area, and then the camera will send the explosion-proof intelligent video signal to the bottom of the well signal box. Through the internal logic operation control output of the control module 1, an alarm signal is sent, and the alarm signal is transmitted to the control module 2 in the winch room signal box through optical fiber. Through internal conversion, the control module 2 outputs the alarm signal, and the alarm signal is transmitted to the hoist electronic control system.

[0024] Through hardware and software, the detection of tail rope kinks and deflections is realized, with strong anti-interference ability and alarm recording function. The alarm action delay time is adjustable. The alarm signal can be shielded under special circumstances.

[0025] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tail rope protection device for a multi-rope friction hoist, comprising a tail rope, a tail rope brake and a protection wheel matched with the tail rope, characterized in that: The tail rope passes through the corresponding protection wheel. Detection sensors are arranged on both sides of the protection wheel. A camera is also arranged at the tail rope. The detection sensor and the camera are electrically connected to the tail rope brake.

2. A multi-rope friction hoist tail rope protection device according to claim 1, characterized in that: It also includes a bottom hole signal box, a winch room signal box and an elevator electronic control system. The bottom hole signal box is provided with a control module 1, the winch room signal box is provided with a control module 2, the detection sensor and the camera are connected to the control module 1, the control module 1 is connected to the control module 2, and the control module 2 is connected to the elevator electronic control system.

3. A multi-rope friction hoist tail rope protection device according to claim 1, characterized in that: The detection sensor is an infrared sensor.

4. The tail rope protection device of a multi-rope friction hoist according to claim 1, characterized in that: The protection wheel includes a fixed circular ring, a rotating ring is provided on the fixed circular ring, a circle of grooves is provided on the inner ring surface of the fixed circular ring, the outer ring of the rotating ring is rotatably connected to the groove through a bearing, a plurality of arc-shaped protrusions are provided on the inner ring surface of the rotating ring along the circumferential direction, and the tail rope passes through the center of the rotating ring.

5. A multi-rope friction hoist tail rope protection device according to claim 4, characterized in that: The inner diameter of the rotating ring is smaller than the inner diameter of the fixed circular ring, and the sensing probe of the detection sensor is fixed on the fixed circular ring.

Images