Belt speed detection roller device with built-in induction

Abstract

The utility model belongs to the technical field of coal mine belt speed detection, and discloses a belt speed detection roller device with built-in induction, which has the specific technical scheme that the belt speed detection roller device comprises a cylindrical roller shell, one end of the roller shell is sealed by a first end cover, and the other end of the roller shell is sealed by a second end cover; one end of the center shaft is supported on the first end cover through a first bearing seat, the other end of the center shaft is supported on the second end cover through a second bearing seat, an induction round hole is formed in the roller shell, a magnet is arranged in the induction round hole, the magnet is arranged in the roller shell, a Hall sensor is arranged on the center shaft, and the Hall sensor is arranged in the roller shell. The wire through hole is axially formed in the center shaft, the Hall sensor is connected with the external acquisition unit through the signal wire, the Hall sensor senses a signal of the magnet and transmits the signal into the external acquisition unit through the signal wire, signal transmission is stable and efficient, the service life of the speed sensor can be effectively prolonged, and safe and stable operation of a transportation system is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine belt speed detection technology, specifically relating to a roller structure for a belt speed sensor. Background Technology

[0002] The mine speed sensor is installed on a belt conveyor. The roller on the speed sensor contacts the belt, and the roller and the belt are driven by friction. The electronic detection part of the mine speed sensor uses a Hall sensor to generate magnetic force with a magnet installed on the roller to detect the rotation of the roller, thereby calculating the speed.

[0003] Existing mining speed sensors on the market link the sensing unit with the sensor roller via a rotating shaft, and then generate on / off signals through a magnet and a Hall switch. The magnet is usually external, and external magnets are easily contaminated by dust and debris, which weakens the magnetic force. This leads to inaccurate Hall switch sensing after a certain period of time, frequent maintenance and repairs, and affects the speed detection of the entire conveyor belt. Utility Model Content

[0004] To address the technical problems existing in the prior art, this utility model provides a belt speed detection roller device with built-in sensing. Both the magnet and the Hall sensor are built-in, which solves the technical problem of short product lifespan after magnet contamination, improves the overall lifespan of the sensor roller, extends the maintenance cycle, and ensures the safe operation of the transportation system.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a belt speed detection roller device with built-in induction, including a cylindrical roller shell, the roller shell having a hollow structure, one end of the roller shell being sealed by a first end cap, and the other end of the roller shell being sealed by a second end cap, the first end cap and the second end cap ensuring the cleanliness of the inside of the roller shell.

[0006] This utility model also includes a central shaft, one end of which is supported on a first end cover by a first bearing seat, and the other end of which is supported on a second end cover by a second bearing seat. The roller housing can rotate relative to the central shaft.

[0007] One end of the central shaft is provided with a first clamping connector, and the other end of the central shaft is provided with a second clamping connector. The central shaft is installed on the support device through the first clamping connector and the second clamping connector.

[0008] The roller housing has a sensing hole, and a magnet is placed inside the sensing hole.

[0009] A Hall sensor is installed on the central shaft, and the Hall sensor is placed inside the roller housing.

[0010] A through hole is axially opened on the central shaft, and the through hole passes through the central shaft along the axis of the central shaft. One end of the Hall sensor is connected to the signal line, and the other end of the signal line passes through the through hole and is connected to the external acquisition unit. The signal acquired by the Hall sensor is transmitted to the external acquisition unit through the signal line.

[0011] A first dustproof baffle is arranged at the outer end of the first bearing housing, and the first dustproof baffle is fixed to the first bearing housing by multiple bolts; a second dustproof baffle is arranged at the outer end of the second bearing housing, and the second dustproof baffle is fixed to the second bearing housing by multiple bolts.

[0012] The center of the sensing hole is located in the middle of the roller housing, and the Hall sensor is arranged in the middle of the central shaft. The positions of the magnet and the Hall sensor correspond to each other to ensure the stability of signal reception.

[0013] As a preferred connection method, the Hall sensor is threaded onto the central shaft.

[0014] In one preferred connection method, the magnet is glued to the induction hole.

[0015] As a preferred connection method, the magnet is threaded into the sensing hole.

[0016] Compared with the prior art, the specific beneficial effects of this utility model are as follows: This utility model places the magnet and Hall sensor inside the roller housing, and the two ends of the roller housing are sealed by end caps to prevent the magnet and Hall sensor from being contaminated, ensuring that the roller housing maintains a clean and stable internal environment. The Hall sensor senses the signal from the magnet and transmits it to the external acquisition unit through the signal line, which can effectively extend the service life of the speed detection roller device and improve the safe and stable operation of the transportation system. Attached Figure Description

[0017] Figure 1 The three-dimensional representation of this utility model Figure 1 .

[0018] Figure 2 The three-dimensional representation of this utility model Figure 2 .

[0019] Figure 3 This is the front view of the present invention.

[0020] Figure 4 for Figure 3 Sectional view at point AA.

[0021] Figure 5 This is a side view of the present invention.

[0022] Figure 6 for Figure 5 Sectional view at point BB.

[0023] Figure 7 This is a top view of the present invention.

[0024] In the figure, 1 is the roller housing, 2 is the first end cap, 3 is the second end cap, 4 is the central shaft, 5 is the first bearing seat, 6 is the second bearing seat, 7 is the first snap connector, 8 is the second snap connector, 9 is the sensing hole, 10 is the magnet, 11 is the Hall sensor, 12 is the through hole, 13 is the first dustproof baffle, and 14 is the second dustproof baffle. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] like Figure 1-7 As shown, a belt speed detection roller device with built-in induction includes a cylindrical roller housing 1. The roller housing 1 has a hollow structure. One end of the roller housing 1 is sealed by a first end cap 2, and the other end of the roller housing 1 is sealed by a second end cap 3. The first end cap 2 and the second end cap 3 can ensure the cleanliness of the inside of the roller housing 1.

[0027] This utility model also includes a central shaft 4. One end of the central shaft 4 is supported on the first end cover 2 by a first bearing seat 5, and the other end of the central shaft 4 is supported on the second end cover 3 by a second bearing seat 6. The central axis of the roller housing 1 coincides with the central axis of the central shaft 4, and the roller housing 1 can rotate relative to the central shaft 4.

[0028] One end of the central shaft 4 is provided with a first locking connector 7, and the other end of the central shaft 4 is provided with a second locking connector 8. The first locking connector 7 and the second locking connector 8 are approximately square heads. The central shaft 4 is installed on the support device through the first locking connector 7 and the second locking connector 8.

[0029] The roller housing 1 has a sensing hole 9, and a magnet 10 is provided in the sensing hole 9. The magnet 10 can be installed in the sensing hole 9 by means of threaded connection or adhesive bonding. Placing the magnet 10 in the roller housing 1 avoids the magnet 10 from being contaminated by the external environment.

[0030] A Hall sensor 11 is provided on the central shaft 4. The Hall sensor 11 is threadedly connected to the central shaft 4 and is placed inside the roller housing 1.

[0031] A through hole 12 is axially opened on the central shaft 4. The through hole 12 passes through the central shaft 4 along the axis of the central shaft 4. The Hall sensor 11 is connected to one end of the signal line, and the other end of the signal line passes through the through hole 12 and is connected to the external acquisition unit. The signal collected by the Hall sensor 11 from the magnet 10 is transmitted to the external acquisition unit through the signal line.

[0032] A first dustproof baffle 13 is arranged at the outer end of the first bearing housing 5. The first dustproof baffle 13 is a circular baffle and is fixed to the first bearing housing 5 by multiple bolts. The first dustproof baffle 13 can prevent external dust or contaminants from entering the first bearing housing 5. A second dustproof baffle 14 is arranged at the outer end of the second bearing housing 6. The second dustproof baffle 14 is a circular baffle and is fixed to the second bearing housing 6 by multiple bolts. The second dustproof baffle 14 can prevent external dust or contaminants from entering the second bearing housing 6.

[0033] The center of the sensing hole 9 is located in the middle of the roller housing 1, the Hall sensor 11 is arranged in the middle of the central shaft 4, the position of the magnet 10 corresponds to the position of the Hall sensor 11, and the Hall sensor 11 can stably receive the signal from the magnet 10.

[0034] This invention places the magnet 10 and the Hall sensor 11 inside the roller housing 1. Both ends of the roller housing 1 are sealed with end caps to prevent the magnet 10 and the Hall sensor 11 from being contaminated, ensuring a clean and stable internal environment inside the roller housing 1. The Hall sensor 11 senses the signal from the magnet 10 and transmits it to the external acquisition unit through a signal line, transmitting the belt speed information in real time. The entire device operates smoothly and efficiently, effectively extending the service life of the speed sensor.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall be included within the scope of the present utility model.

Claims

1. A belt speed detection roller device with built-in sensing, characterized in that, It includes a cylindrical roller housing (1), the roller housing (1) is a hollow structure, one end of the roller housing (1) is sealed by a first end cap (2), and the other end of the roller housing (1) is sealed by a second end cap (3); It also includes a central shaft (4), one side of which is supported on the first end cover (2) by a first bearing seat (5), and the other side of which is supported on the second end cover (3) by a second bearing seat (6); One end of the central shaft (4) is provided with a first snap connector (7), and the other end of the central shaft (4) is provided with a second snap connector (8). The roller housing (1) has a sensing hole (9), and a magnet (10) is provided inside the sensing hole (9). The magnet (10) is placed inside the roller housing (1). A Hall sensor (11) is provided on the central shaft (4), and the Hall sensor (11) is placed inside the roller housing (1); The central shaft (4) has an axial through hole (12) on its upper axis. The Hall sensor (11) is connected to one end of the signal line, and the other end of the signal line passes through the through hole (12) and is connected to the external acquisition unit.

2. A belt speed sensing roller device with built-in induction as claimed in claim 1, wherein, The outer end of the first bearing housing (5) is provided with a first dust baffle (13), which is fixed to the first bearing housing (5) by multiple bolts; the outer end of the second bearing housing (6) is provided with a second dust baffle (14), which is fixed to the second bearing housing (6) by multiple bolts.

3. A built-in inductive belt speed detection roller device according to claim 2, characterized in that The center of the sensing hole (9) is located in the middle of the roller housing (1), and the Hall sensor (11) is arranged in the middle of the central shaft (4).

4. A belt speed sensing roller device with built-in induction as claimed in claim 3, wherein The Hall sensor (11) is threaded onto the central shaft (4).

5. A belt speed sensing roller device with built-in induction as claimed in claim 4, wherein, The magnet (10) is glued inside the sensing hole (9).

6. A built-in inductive belt speed detection roller device according to claim 4, characterized in that The magnet (10) is threaded into the sensing hole (9).

Images