A belt slippage prevention device
By introducing a tension adjustment mechanism into the belt drive system, and using tension sensors and encoders to monitor the belt status in real time and automatically adjust the tension, the problem of belt slippage in the existing technology is solved, and the stability and production efficiency of the system are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI HUAXING ALUMINUM CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-30
AI Technical Summary
The existing belt tensioning device cannot adjust the tension in real time, which causes the belt to slip when the load changes, affecting production efficiency and equipment stability.
A tension adjustment mechanism, including a tension roller and a drive motor, combined with a tension sensor and encoder, is adopted to monitor belt tension and speed in real time. The controller performs data analysis and automatically adjusts the tension.
It enables automatic adjustment of tension based on load changes, improving the stability and production efficiency of belt drive systems and reducing equipment failures and belt wear.
Smart Images

Figure CN224428924U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of belt technology, specifically referring to a belt slippage prevention device. Background Technology
[0002] In the field of industrial production, belt drive systems are widely used in many industries such as mining transportation, logistics sorting, and food processing due to their simple structure, low cost, and smooth transmission.
[0003] Under prolonged use, current belt conveyors experience a decrease in belt elasticity, leading to insufficient contact between the belt and the drive pulley, resulting in slippage. To prevent slippage, belt tensioning devices are installed. Most existing belt tensioning devices use fixed tensioning pulleys or simple spring structures, which can only provide a constant tension force to the belt. In actual operating conditions, the load carried by the belt is dynamically changing. For example, during material conveying, changes in the weight of the conveyed material will cause significant fluctuations in belt tension.
[0004] Because existing equipment lacks real-time adjustment capabilities, it cannot adjust the tension in a timely manner according to load changes. When the belt load increases, the constant tension is insufficient to meet the demand, and the belt is prone to slippage due to insufficient tension, which leads to a decrease in production efficiency and may even cause material spillage, equipment failure, and other problems. When the load decreases, the belt may become over-tensioned, resulting in excessive friction between the belt and the drive pulley, accelerating belt wear, shortening belt life, increasing maintenance costs, and causing unstable belt operation, which seriously restricts the continuity and stability of industrial production. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, this utility model provides an anti-belt slippage device, which effectively solves the problem of not being able to monitor the belt status in real time and automatically adjust the tension.
[0006] To achieve the above functions, the technical solution adopted by this utility model is as follows: an anti-slip belt device, including a belt and a tension adjustment mechanism disposed at the bottom of the belt; the tension adjustment mechanism includes a U-shaped support frame, the support frame is fixedly installed at the bottom of the belt, an mounting plate is rotatably installed on the side wall of the support frame, a tension roller one and a tension roller two are horizontally installed on the mounting plate, the tension roller one and the tension roller two are respectively located at the bottom of the belt, and a drive motor is fixedly installed on the support frame, the output shaft of which is connected to the mounting plate;
[0007] An encoder is installed on the shaft end of the tension roller one for measuring the linear speed of the belt, and a tension sensor is installed on the bearing seat of the tension roller two for real-time detection of belt tension.
[0008] Preferably, a controller is installed on the outer wall of the support frame. The controller is electrically connected to the tension sensor, the encoder, and the drive motor. The controller has a built-in data processing module and control algorithm for analyzing and processing the data from the tension sensor and the encoder.
[0009] Preferably, the tension sensor is a strain gauge or piezoelectric force sensor.
[0010] Preferably, the encoder is an incremental or absolute photoelectric encoder.
[0011] Preferably, the tension adjustment mechanism further includes an alarm module, which is electrically connected to the controller.
[0012] Preferably, the drive motor is a servo motor or a stepper motor.
[0013] The beneficial effects of the above-mentioned structure of this utility model are as follows: By setting a tension adjustment mechanism at the bottom of the belt, two sets of tension rollers cooperate with the drive motor to flexibly adjust the tension according to the actual working conditions. One tension roller shaft in the device is equipped with a tension sensor, and the other is equipped with an encoder, which can simultaneously and accurately detect the tension and speed of the belt. The encoder provides real-time feedback on the belt running speed. Combined with the tension data, the controller can fully grasp the belt running status, providing a more accurate basis for tension adjustment, further improving the stability and reliability of the belt drive system, eliminating the need for manual intervention and improving production efficiency. Attached Figure Description
[0014] Figure 1 This utility model provides a schematic diagram of the overall structure of an anti-belt slippage device. Figure 1 ;
[0015] Figure 2 This utility model provides a schematic diagram of the overall structure of an anti-belt slippage device. Figure 2 ;
[0016] Figure 3 This utility model provides a schematic diagram of the overall structure of an anti-belt slippage device. Figure 3 ;
[0017] Figure 4 This is a circuit diagram of an anti-belt slippage device proposed in this utility model.
[0018] The components include: 1. belt, 2. tension adjustment mechanism, 3. support frame, 4. mounting plate, 5. tension roller one, 6. tension roller two, 7. drive motor, 8. encoder, 9. tension sensor, 10. controller, and 11. alarm module. Detailed Implementation
[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0021] like Figure 1-4 As shown, the present invention proposes an anti-slip belt device, including a belt 1 and a tension adjustment mechanism 2 disposed at the bottom of the belt 1; the tension adjustment mechanism 2 includes a U-shaped support frame 3, which is fixedly installed at the bottom of the belt 1, and an mounting plate 4 is rotatably installed on the side wall of the support frame 3. Tension roller 1 5 and tension roller 2 6 are horizontally installed on the mounting plate 4, and tension roller 1 5 and tension roller 2 6 are respectively located at the bottom of the belt 1. A drive motor 7 is fixedly installed on the support frame 3, and its output shaft is connected to the mounting plate 4.
[0022] like Figure 1 , 3 As shown, an encoder 8 is installed on the shaft end of tension roller 1 5. The encoder 8 is an incremental or absolute photoelectric encoder 8, used to measure the linear speed of belt 1. A tension sensor 9 is provided on the bearing seat of tension roller 2 6. The tension sensor 9 is a strain gauge or piezoelectric force sensor, used to detect the tension of belt 1 in real time.
[0023] like Figure 1 , 3 As shown, a controller 10 is installed on the outer wall of the support frame 3. The controller 10 is electrically connected to the tension sensor 9, the encoder 8 and the drive motor 7. The drive motor 7 is a servo motor or a stepper motor. The controller 10 has a built-in data processing module and control algorithm, which is used to analyze and process the data of the tension sensor 9 and the encoder 8, and control the rotation direction and rotation angle of the drive motor 7 according to the analysis results.
[0024] like Figure 4As shown, the tension adjustment mechanism 2 also includes an alarm module 11, which is electrically connected to the controller 10. When the controller 10 determines that the belt 1 is in an abnormal running state, it controls the alarm module 11 to issue an alarm.
[0025] In practical use, the support frame 3 is fixedly installed at a suitable position at the bottom of the belt 1 in the belt drive system to ensure that the support frame 3 is stable and reliable. After the device is put into use, the tension sensor 9 monitors the tension of the belt 1 in real time, and the encoder 8 detects the running speed of the belt 1 in real time and transmits the data to the controller 10. The controller 10 analyzes and processes the received data. When it is determined that the belt 1 has insufficient tension or abnormal speed and there is a risk of slippage, it immediately issues a command to control the drive motor 7 to rotate. The drive motor 7 drives the mounting plate 4 to rotate, thereby adjusting the position of the tension roller, increasing the tension of the belt 1, and restoring the belt 1 to normal operation. During the operation of the belt 1, the controller 10 continuously monitors the status of the belt 1 and dynamically adjusts the tension according to the actual situation to ensure the stable operation of the belt 1.
[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A belt slippage prevention device, characterized in that: Includes a belt (1) and a tension adjustment mechanism (2) disposed at the bottom of the belt (1); the tension adjustment mechanism (2) includes a U-shaped support frame (3), the support frame (3) is fixedly installed at the bottom of the belt (1), an mounting plate (4) is rotatably installed on the side wall of the support frame (3), a tension roller one (5) and a tension roller two (6) are horizontally installed on the mounting plate (4), the tension roller one (5) and the tension roller two (6) are respectively located at the bottom of the belt (1), and a drive motor (7) is fixedly installed on the support frame (3), the output shaft of which is connected to the mounting plate (4); An encoder (8) is installed on the shaft end of the tension roller one (5) to measure the linear speed of the belt (1). A tension sensor (9) is provided on the bearing seat of the tension roller two (6) to detect the tension of the belt (1) in real time.
2. The anti-belt slippage device according to claim 1, characterized in that: A controller (10) is installed on the outer wall of the support frame (3). The controller (10) is electrically connected to the tension sensor (9), the encoder (8) and the drive motor (7). The controller (10) has a built-in data processing module and control algorithm for analyzing and processing the data of the tension sensor (9) and the encoder (8).
3. The anti-belt slippage device according to claim 2, characterized in that: The tension sensor (9) is a strain gauge or piezoelectric force sensor.
4. The anti-belt slippage device according to claim 3, characterized in that: The encoder (8) is an incremental or absolute photoelectric encoder (8).
5. The anti-belt slippage device according to claim 4, characterized in that: The tension adjustment mechanism (2) also includes an alarm module (11), which is electrically connected to the controller (10).
6. The anti-belt slippage device according to claim 5, characterized in that: The drive motor (7) is a servo motor or a stepper motor.