Pressure monitoring device for friction wheel steel wire rope of multi-rope elevator

Abstract

A pressure monitoring device for a friction wheel steel wire rope of a multi-rope elevator comprises a data acquisition mechanism, a power supply mechanism and a control mechanism. The data acquisition mechanism comprises a plurality of pressure sensors which are correspondingly arranged in the liners on the friction wheel; the power supply mechanism comprises a mounting ring, a power supply and a plurality of wireless charging coils, the mounting ring fixedly sleeves the rotating shaft of the friction wheel, all the wireless charging coils are detachably arranged on the mounting ring and are distributed in the circumferential direction of the mounting ring, the power supply is fixedly arranged on the side of the mounting ring, and the wireless charging coils are arranged on the power supply. In the rotating process of the rotating shaft, the power supply is matched with the wireless charging coil to wirelessly supply power to all the pressure sensors, the power supply requirements of the pressure sensors are met, the generating capacity of the pressure sensors is guaranteed, the pressure sensors are more stable during data transmission, and the monitoring precision is improved. In the process, the power supply does not rotate along with the rotating shaft, and work of the power supply is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-rope hoist steel wire rope pressure monitoring, in particular to a pressure monitoring device for a multi-rope hoist friction wheel steel wire rope. Background Art

[0002] Multi-rope friction hoists are essential lifting equipment widely used in mining and other fields. They utilize friction wheels to drive wire ropes for the lifting and transportation of mineral products. Multi-rope friction hoists typically utilize multiple wire ropes to simultaneously support loads. Uneven load distribution on these multiple ropes can lead to increased friction and even serious accidents such as rope breakage. To ensure the stability and safety of multi-rope friction hoists, real-time monitoring of wire rope tension is required during operation.

[0003] Chinese patent document "CN114135611B" describes a self-propelled, intelligently monitored, integrated friction lining for a friction hoist used in a mine. It features a self-propelled, small-scale, three-dimensional intelligent sensor, which is encapsulated into the bottom of the lining using polyurethane with a similar elastic modulus to the friction lining. This sensor can monitor the friction and pressure acting on the lining in real time without affecting the integrity of the friction lining, ensuring the normal operation of the friction hoist and requiring no external power supply. However, sensors that do not require an external power supply typically generate relatively little power, and insufficient power supply can lead to instability in the data collection and transmission process. Utility Model Content

[0004] In order to solve the problems of unstable transmission and low monitoring accuracy of pressure sensors in the existing technology, the utility model provides a pressure monitoring device for the friction wheel wire rope of a multi-rope hoist, which makes the pressure sensor data transmission more stable and improves the monitoring accuracy.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: a pressure monitoring device for a friction wheel wire rope of a multi-rope hoist, comprising a data acquisition mechanism, a power supply mechanism and a control mechanism;

[0006] The data acquisition mechanism includes a plurality of pressure sensors correspondingly arranged inside the pads on the friction wheel;

[0007] The power supply mechanism includes a mounting ring, a power supply, and multiple wireless charging coils. The mounting ring is fixedly mounted on the rotating shaft of the friction wheel. All wireless charging coils are detachably mounted on the mounting ring and are distributed along the circumference of the mounting ring. The power supply is fixedly mounted on the side of the mounting ring. During the rotation of the rotating shaft, the power supply cooperates with the wireless charging coils to wirelessly power all pressure sensors.

[0008] The control mechanism is used to receive the pressure signal of the pressure sensor and wirelessly transmit the pressure signal to the host computer. The control mechanism is detachably arranged inside the roller of the friction wheel.

[0009] As a further optimization of the utility model of a pressure monitoring device for a friction wheel wire rope of a multi-rope hoist: the mounting ring is detachably mounted on the portion of the rotating shaft extending out of the drum, and all the wireless charging coils are evenly distributed on the mounting ring.

[0010] As a further optimization of the utility model, a pressure monitoring device for a friction wheel wire rope of a multi-rope hoist is provided: the mounting ring includes two half rings, and the two half rings are connected by a connecting assembly.

[0011] As a further optimization of a utility model of a pressure monitoring device for a friction wheel wire rope of a multi-rope hoist: the connecting assembly includes a connecting bolt and a connecting plate fixedly arranged at the end of the semi-ring, and a connecting screw hole matching the connecting bolt is opened on the connecting plate. When the two semi-rings are sleeved on the rotating shaft, the adjacent connecting plates are connected by connecting bolts.

[0012] As a further optimization of the utility model, a pressure monitoring device for a friction wheel wire rope of a multi-rope hoist is provided: the control mechanism is fixedly arranged in the drum through a bearing rod, and the bearing rod extends along the axial direction of the drum.

[0013] As a further optimization of the utility model, a pressure monitoring device for a friction wheel wire rope of a multi-rope hoist is provided: the pressure sensor is connected to the control mechanism via a signal transmission line.

[0014] As a further optimization of a utility model of a pressure monitoring device for a friction wheel wire rope of a multi-rope hoist: the pressure sensor is arranged in a receiving groove opened at the bottom of the liner, and the signal transmission line extends out of the liner through a channel opened on the liner.

[0015] As a further optimization of the utility model, a pressure monitoring device for a friction wheel wire rope of a multi-rope hoist is provided: the portion of the signal transmission line extending out of the channel enters the interior of the drum through a central hole opened on the pressure block.

[0016] As a further optimization of the utility model, a pressure monitoring device for a friction wheel wire rope of a multi-rope hoist is provided: the pressure sensor is connected to the power supply via a power line.

[0017] As a further optimization of a utility model of a pressure monitoring device for a friction wheel wire rope of a multi-rope hoist: the power cord is connected to the wireless charging coil after passing through the power supply channels opened on the pad, the drum and the baffle in sequence.

[0018] Beneficial effects: All the wireless charging coils of the utility model are detachably arranged on the mounting ring, and all the wireless charging coils are distributed along the circumferential direction of the mounting ring. The power supply is fixedly arranged on the side of the mounting ring. During the rotation of the rotating shaft, the power supply and the wireless charging coil cooperate to wirelessly power all the pressure sensors, thereby ensuring the power supply requirements of the pressure sensors and the power generation of the pressure sensors, making them more stable during data transmission and improving the monitoring accuracy. At the same time, during the rotation of the rotating shaft, the power supply does not rotate with the rotating shaft and will not affect the operation of the power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a diagram showing the coordination between the mounting ring and the wireless charging coil;

[0021] Figure 3 It is a partial cross-sectional view of the pressure monitoring device and the roller;

[0022] Figure 4 It is a schematic diagram of the combination of the pressure block, the gasket and the sensor;

[0023] Markings in the figure: 1. Roller, 101. Baffle, 102. Bearing rod, 103. Center hole, 104. Fixing bolt, 105. Fixing nut, 2. Rotating shaft, 201. Mounting ring, 2011. Connecting plate, 2012. Connecting bolt, 202. Power supply, 203. Wireless charging coil, 3. Control mechanism, 4. Pad, 401. Pressure sensor, 402. Groove, 403. Signal transmission line, 404. Channel, 405. Power cord, 5. Press block. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further elaborated in detail below in conjunction with specific embodiments. The parts not described and disclosed in detail in the following embodiments of the present invention should be understood as existing technologies known or should be known to those skilled in the art, such as the structure and model of the friction wheel of the multi-rope hoist, the model of the pressure sensor 401, the model and structure of the power supply 202, the model and structure of the wireless charging coil 203, etc.

[0025] A pressure monitoring device for a friction wheel wire rope of a multi-rope hoist, such as Figures 1-4As shown, it includes a data acquisition mechanism, a power supply mechanism, and a control mechanism 3. The data acquisition mechanism includes multiple pressure sensors 401 correspondingly arranged inside the pads 4 on the friction wheel. The number of pressure sensors 401 provided is determined by the number of wire ropes on each multi-rope hoist. The pads 4 are provided with grooves 402 for accommodating the wire ropes. The power supply mechanism includes a mounting ring 201, a power supply 202, and multiple wireless charging coils 203. The mounting ring 201 is fixedly mounted on the rotating shaft 2 of the friction wheel. All wireless charging coils 203 are detachably mounted on the mounting ring 201 and are distributed along the circumference of the mounting ring 201. The specific fixing method of the power supply 202 is conventional technology and will not be further described here.

[0026] During the rotation of the multi-rope hoist's shaft 2, since the power supply 202 is fixed to the side of the mounting ring 201, it does not rotate with the shaft 2, thus not affecting its operation. During the rotation of the shaft 2, the power supply 202 cooperates with the wireless charging coil 203 to wirelessly power all pressure sensors 401, ensuring their power supply needs and generating capacity, making data transmission more stable and improving monitoring accuracy.

[0027] The control mechanism 3 is configured to receive the pressure signal from the pressure sensor 401 and wirelessly transmit the pressure signal to the host computer. The manner in which the control mechanism 3 receives the pressure signal from the pressure sensor 401 and wirelessly transmits the pressure signal to the host computer is conventional in the art and will not be further elaborated upon here. The control mechanism 3 is detachably disposed within the interior of the friction wheel drum 1. The control mechanism 3 is fixedly disposed within the drum 1 via a support rod 102, which extends axially along the drum 1 and is fixed within the drum 1.

[0028] The pressure sensor 401 is connected to the control mechanism 3 via a signal transmission line 403. How the signal transmission line 403 is connected to the control mechanism 3 is conventional prior art in this field and will not be elaborated on here. The pressure sensor 401 is arranged in a receiving groove provided at the bottom of the gasket 4. When the pressure sensor 401 is placed in the receiving groove, one side of the pressure sensor 401 is in contact with the outer wall of the roller 1. The signal transmission line 403 extends out of the gasket 4 through a channel 404 provided on the gasket 4. The portion of the signal transmission line 403 extending out of the channel 404 enters the interior of the roller 1 through a central hole 103 provided on the pressure block 5. The pressure block 5 is connected to the roller 1 via a fixing bolt 104. The central hole 103 is provided on the fixing bolt 104 and passes through the fixing bolt 104 axially. A fixing nut 105 is provided at the end of the fixing bolt 104, and a countersunk hole for accommodating the fixing nut 105 is provided on the pressure block 5.

[0029] The pressure sensor 401 is connected to the power supply 202 through the power cord 405. How the power cord 405 is connected to the power supply 202 is a conventional existing technology in this field and will not be elaborated on here. The power cord 405 is connected to the wireless charging coil 203 after passing through the power supply channel 404 opened on the pad 4, the roller 1 and the baffle 101 in turn. During the rotation of the shaft 2, the power cord 405 and the wireless charging coil 203 will rotate together, so it will not affect the working process of this solution.

[0030] To facilitate replacement of the mounting ring 201, it is removably mounted on the portion of the rotating shaft 2 that extends from the drum 1. All of the wireless charging coils 203 are evenly distributed on the mounting ring 201. This distribution can be achieved by gluing the mounting ring 201, or by pre-setting a mounting space on the mounting ring 201, placing all of the wireless charging coils 203 within the space, and then simply sealing the space with tape to prevent the wireless charging coils 203 from falling out. The mounting ring 201 comprises two half-rings connected by a connecting assembly. This facilitates installation of the mounting ring 201 by simply snapping the two half-rings onto the drum 1 and then connecting them together using the connecting assembly. The connecting assembly includes connecting bolts 2012 and connecting plates 2011 fixed to the ends of the half-rings. The connecting plates 2011 have connecting screw holes that mate with the connecting bolts 2012. When the two half-rings are mounted on the rotating shaft 2, adjacent connecting plates 2011 are connected by the connecting bolts 2012.

[0031] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pressure monitoring device for a friction wheel wire rope of a multi-rope hoist, comprising a data acquisition mechanism, a power supply mechanism and a control mechanism (3); A data acquisition mechanism comprising a plurality of pressure sensors (401) correspondingly arranged inside the pads (4) on the friction wheel; The power supply mechanism comprises a mounting ring (201), a power supply (202) and a plurality of wireless charging coils (203); the mounting ring (201) is fixedly sleeved on the rotating shaft (2) of the friction wheel; all the wireless charging coils (203) are detachably arranged on the mounting ring (201); and all the wireless charging coils (203) are distributed along the circumference of the mounting ring (201); the power supply (202) is fixedly arranged on the side of the mounting ring (201); and during the rotation of the rotating shaft (2), the power supply (202) cooperates with the wireless charging coils (203) to wirelessly power all the pressure sensors (401); The control mechanism (3) is used to receive the pressure signal from the pressure sensor (401) and wirelessly transmit the pressure signal to the host computer. The control mechanism (3) is detachably arranged inside the roller (1) of the friction wheel.

2. The pressure monitoring device for the friction wheel wire rope of a multi-rope hoist according to claim 1, characterized in that: The mounting ring (201) is detachably sleeved on the portion of the rotating shaft (2) extending out of the roller (1), and all the wireless charging coils (203) are evenly distributed on the mounting ring (201).

3. The pressure monitoring device for the friction wheel wire rope of a multi-rope hoist according to claim 2, characterized in that: The mounting ring (201) comprises two half rings, and the two half rings are connected via a connecting assembly.

4. The pressure monitoring device for the friction wheel wire rope of a multi-rope hoist according to claim 3, characterized in that: The connecting assembly comprises a connecting bolt (2012) and a connecting plate (2011) fixedly arranged at the end of the semi-ring, wherein the connecting plate (2011) is provided with a connecting screw hole that cooperates with the connecting bolt (2012), and when the two semi-rings are sleeved on the rotating shaft (2), adjacent connecting plates (2011) are connected via the connecting bolt (2012).

5. The pressure monitoring device for the friction wheel wire rope of a multi-rope hoist according to claim 1, characterized in that: The control mechanism (3) is fixedly arranged in the drum (1) via a bearing rod (102), and the bearing rod (102) extends along the axial direction of the drum (1).

6. The pressure monitoring device for the friction wheel wire rope of a multi-rope hoist according to claim 1, characterized in that: The pressure sensor (401) is connected to the control mechanism (3) via a signal transmission line (403).

7. The pressure monitoring device for the friction wheel wire rope of a multi-rope hoist according to claim 6, characterized in that: The pressure sensor (401) is arranged in a receiving groove opened at the bottom of the liner (4), and the signal transmission line (403) extends out of the liner (4) through a channel (404) opened on the liner (4).

8. The pressure monitoring device for the friction wheel wire rope of a multi-rope hoist according to claim 1, characterized in that: The pressure sensor (401) is connected to the power supply (202) via a power line (405).

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