Method and system for dynamically adjusting installation distance of conveyor according to chain tension

Through state control and modular design, the chain tension is calculated using start-stop information and basic parameters, and the installation distance is dynamically adjusted. This solves the problems of low sensor accuracy and high maintenance costs in conveyor chain tensioning technology, and achieves stable operation of the chain and efficient operation of the equipment.

CN120793468APending Publication Date: 2025-10-17TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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Patent Information

Application Number
CN202511243293.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

In the existing automatic conveyor chain tensioning technology, the sensor precision and accuracy are low, and the maintenance cost is high, which leads to problems such as chain sagging, chain stacking and chain jumping.

Method used

Through state control, the chain tension is calculated using the start and stop information, basic parameters and low-cost sensor information of the conveyor, and the installation distance is dynamically adjusted. A modular design is adopted, including a sensor module, a tensioning execution module and a control module, to achieve automatic tension adjustment.

Benefits of technology

It improves the accuracy of chain tension calculation, reduces maintenance costs, avoids chain sagging, chain stacking and chain jumping problems, and improves equipment operation stability and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a method and system for dynamically adjusting the installation distance of a conveyor according to chain tension, and relates to the technical field of conveyor control, the system comprises a conveyor body, a sensor module, a tensioning oil cylinder and a control module, and the sensor module comprises a torque sensor, a pressure sensor and an angle sensor. The adjusting method comprises the steps that firstly, starting and stopping information of the conveyor is obtained, the tensioning oil cylinder is controlled to be located at the initial set position during shutdown, and plastic deformation of a chain accumulated due to ratchet behaviors is eliminated; during starting, real-time chain tension on a driving chain wheel side is calculated based on basic parameters of a conveyor and information collected by a sensor, loose edge tension serves as a core adjusting target, a threshold value is set, if the loose edge tension exceeds the threshold value, a tensioning oil cylinder is controlled to stretch out and draw back to change the installation distance, and adjustment is not conducted within the threshold value interval. The method does not need to depend on a high-precision complex sensor, the maintenance cost and the error risk are reduced, chain faults are effectively avoided, the operation stability of equipment is improved, and the method is suitable for multiple types and high in practicability.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of conveyor control technology, in particular to a method and system for dynamically adjusting the installation distance of a conveyor according to chain tension. BACKGROUND

[0002] Referring to Figure 3 As shown in the figure, 1 is a drive frame; 2 is a guide wheel; 3 is a rack; 4 is a scraper chain; 5 is a torque sensor; 6 is a tension cylinder; 7 is a pressure sensor; 8 is an angle sensor. During the movement of the conveyor, the transport chain is deformed under stress, and the chain tension will also change due to the change in the density and volume of the goods, and the upper and lower chain lengths are inconsistent. If the lower chain is loose, it will sag, and in severe cases, it will pile up, causing the chain to jump and affecting the normal operation of the equipment. Due to the influence of the working environment, the current automatic tensioning technology for the conveyor chain has low sensor precision and accuracy, and high maintenance cost.

[0003] In view of the above, the present application is proposed. SUMMARY

[0004] The present application aims to provide a method and system for dynamically adjusting the installation distance of a conveyor according to chain tension, to solve the problem of low sensor precision and accuracy and high maintenance cost in the automatic tensioning technology for the conveyor mentioned in the background.

[0005] To solve the above technical problems, the present application provides a method for dynamically adjusting the installation distance of a conveyor according to chain tension, comprising the following steps:

[0006] Step 1: Obtain the start and stop information of the conveyor, and determine whether the conveyor is in the on or off state;

[0007] Step 2: If the conveyor is in the off state, control the tension cylinder for adjusting the tension of the conveyor to be in the initial set position. At the initial set position, the pressure of the tension cylinder is P and the displacement is L1, and the initial set position can eliminate the plastic deformation amount accumulated by the conveyor chain due to the ratchet behavior;

[0008] Step 3: If the conveyor is in the on state, calculate based on the basic parameters of the conveyor and the sensor information to obtain the real-time chain tension information on the drive sprocket side of the conveyor; wherein the basic parameters include the initial meshing point diameter D1 of the drive sprocket tight side, the meshing out point diameter D4 of the drive sprocket loose side, the number of teeth n of the drive sprocket, and the cross-sectional area s of the bottom cavity of the tension cylinder; the sensor information includes the drive torque T drieve measured at the output end of the reducer, the pressure P measured at the tension cylinder, and the rotational speed Ω of the drive sprocket; the real-time chain tension information at least includes the tension F4 on the drive sprocket side of the lower chain;

[0009] Step 4: Automatic extension and retraction control of the tension cylinder based on real-time chain tension information to change the installation center distance of the conveyor; specifically: set the maximum value F 4max =A, the minimum value F 4min =B, if the real-time calculation F4≥A or F4≤B, control the extension and retraction of the tension cylinder, and adjust F4 to If the real-time calculation F4 is in the interval [A, B], do not adjust F4 to avoid frequent system adjustments; through state-based (stop / start) control of the tension cylinder, use the initial set position to eliminate chain plastic deformation when stopped to avoid the accumulation of deformation affecting subsequent operation; when starting, calculate the tension based on the inherent basic parameters of the conveyor and the measured sensor information, without relying on high-precision complex sensors, reducing maintenance costs and precision error risks; at the same time, by setting the adjustment threshold interval and target adjustment value of F4, the system is effectively prevented from frequent adjustment, ensuring that the chain tension is stable within a reasonable range, preventing chain stacking and jumping due to abnormal tension, and improving the stability and service life of the system.

[0010] Further, in step 3: based on the basic parameters of the conveyor and sensor information, the real-time chain tension information on the drive sprocket side of the conveyor is calculated, specifically, the upper chain drive sprocket side tension F1 and the lower chain drive sprocket side tension F4 are calculated according to a preset equation; the preset equation at least includes F=Ps, where F is the output force of the tension cylinder, P is the pressure of the tension cylinder, and s is the cross-sectional area of the bottom cavity of the tension cylinder; by clearly defining the core preset equation for tension calculation (such as F=Ps), the measured pressure of the tension cylinder is directly related to the inherent cross-sectional area parameter, without introducing additional complex sensors or calculation models, the output force of the tension cylinder can be accurately derived, and F1 and F4 can be reliably calculated; this calculation method is based on measured data and fixed parameters, reducing external environmental interference and improving the accuracy of tension information, providing accurate decision-making basis for subsequent tension cylinder adjustment and further reducing the risk of equipment operation caused by calculation errors.

[0011] Further, in step 1, the start / stop information of the conveyor is obtained by establishing data interaction with the conveyor control system, which is achieved by detecting whether the drive sprocket speed Ω is 0; if Ω=0, it is determined that the conveyor is in a stopped state; if Ω>0, it is determined that the conveyor is in a started state; two feasible schemes for obtaining start / stop information are provided, which adapt to different control architectures of conveyors and directly reuse existing signals through data interaction with existing control systems without additional hardware; by using the angle sensor signal required for subsequent tension calculation, no additional dedicated start / stop detection sensor is needed, simplifying the system structure; both methods can quickly and accurately determine the state of the conveyor, providing a reliable premise for subsequent state-based control, while reducing the hardware cost and integration complexity of the system.

[0012] Further, in step 3, the rotation speed Ω of the driving sprocket is measured by an angle sensor arranged at the output end of the speed reducer and the shaft end of the driving sprocket. The angle sensor converts the collected angle signal into a rotation speed signal to obtain Ω. The measurement position and method of the rotation speed Ω are determined. The output end of the speed reducer or the shaft end of the driving sprocket is the key node of the rotation speed transmission. The angle sensor is installed at this position to directly and real-timely collect the rotation speed related signal, avoiding the attenuation or distortion of the signal in the transmission process. Compared with other rotation speed measurement devices, the angle sensor has the characteristics of stable precision, strong environmental adaptability, and low maintenance cost, can continuously provide reliable rotation speed parameters for the tension calculation, ensure the accuracy of the tension calculation in the starting state, and further improve the precision of the installation distance adjustment.

[0013] Further, in step 2, the initial set position of the tension cylinder is pre-calibrated according to the design length of the conveyor chain, the initial tensioning requirement, and the plastic deformation compensation amount. The pressure P and displacement L1 of the initial set position can be adjusted according to the parameters of different types of conveyors. The initial set position is associated with the design characteristics of the conveyor chain and the actual deformation requirement, making the calibration of the initial position more targeted and accurately eliminating plastic deformation under different working conditions. At the same time, the pressure P and displacement L1 can be adjusted according to different types of conveyors, breaking the limitation of the "fixed initial position" and improving the universality of the method. Through accurate initial position setting, it can avoid excessive relaxation or tightness of the chain during shutdown, prolong the service life of the chain, and lay a stable foundation for the next start-up tension control, reducing the adjustment frequency during the initial start-up.

[0014] A conveyor installation distance dynamic adjustment system according to chain tension, comprising:

[0015] Conveyor body: the conveyor body includes a driving frame, a guide wheel, a rack, a scraper chain, and a driving sprocket. The scraper chain is wound around the driving sprocket and the guide wheel. The driving frame is used to install the driving sprocket, and the rack provides support for the whole conveyor.

[0016] Sensor module: the sensor module includes a torque sensor, a pressure sensor, and an angle sensor. The torque sensor is arranged at the output end of the speed reducer to measure the driving torque T drieve experienced by the driving sprocket. The pressure sensor is arranged on the tension cylinder to measure the pressure P of the tension cylinder. The angle sensor is arranged at the output end of the speed reducer or the shaft end of the driving sprocket to measure the rotation speed Ω of the driving sprocket.

[0017] Tension execution module: the tension execution module is a tension cylinder connected with the driving frame, used to adjust the position of the driving frame through extension and contraction, and thus change the installation center distance of the conveyor.

[0018] The control module is electrically connected with the sensor module and the tensioning execution module, and is configured to: acquire start-stop information of the conveyor, and determine whether the conveyor is in a start state or a stop state;

[0019] If the conveyor is in the stop state, the control module controls the tensioning oil cylinder to be in an initial set position, the pressure of the tensioning oil cylinder in the initial set position is P, the displacement is L1, and the plastic deformation amount accumulated by the scraper chain due to the ratchet action can be eliminated;

[0020] If the conveyor is in the start state, based on basic parameters of the conveyor and information collected by the sensor module, the basic parameters include D1, D4, n and s, the information collected by the sensor module includes T drieve , P and Ω, real-time chain tension information on the drive sprocket side is calculated, and at least includes F4;

[0021] The tensioning oil cylinder is controlled to extend or retract based on the real-time chain tension information: F 4max is set as A, and F 4min is set as B, if F4 is greater than or equal to A or F4 is less than or equal to B, the tensioning oil cylinder is controlled to extend or retract to adjust F4 to If F4 is in the range of [A, B], no adjustment is made; the system is constructed through modular design (body, sensor, tensioning execution, control), the structure is clear, the functions of the modules are independent, and the system is convenient to install, maintain and troubleshoot; only three types of practical sensors, i.e., torque, pressure and angle, are selected for the sensor module, and the high cost and high maintenance requirement of high-precision complex sensors in the prior art are avoided; the control module realizes full-automatic control in different states, eliminates plastic deformation in the stop state, and adjusts the installation distance in real time in the start state, which can effectively avoid problems such as chain stacking and chain jumping, ensures normal operation of the equipment, does not require manual intervention, improves the automation level and operation reliability of the system, and reduces the long-term use cost.

[0022] Further, preset equations for calculating F1 and F4 are pre-stored in the control module, the preset equations at least include F = Ps and a torque-tension correlation equation related to T drieve , Ω, D1 and D4, F is the output force of the tensioning oil cylinder, and the control module calculates the real-time chain tension information by calling the preset equations; the core calculation equations are pre-stored in the control module, so that the tension calculation does not need to rely on external complex algorithms or real-time data interaction, the control module can directly call the equations to quickly complete the calculation, the efficiency of obtaining the tension information is improved, and the real-time performance of the installation distance adjustment is ensured; the preset equations are based on measured or inherent data such as the output force of the oil cylinder, torque and sprocket parameters, the calculation logic is stable and the error is small, accurate basis can be provided for the adjustment of the tensioning oil cylinder, tension out of control caused by calculation delay or error is avoided, and the stability and adjustment accuracy of system operation are further ensured.

[0023] Further, the cylinder body of the tension cylinder is fixedly connected with the rack, the piston rod of the tension cylinder is fixedly connected with the driving frame, the driving frame is driven to approach or move away from the guide wheel through the extension or retraction of the piston rod, so that the distance between the driving sprocket and the guide wheel, i.e. the installation center distance of the conveyor, is changed; the connection mode of the tension cylinder is clear, the structure that the cylinder body is fixed to the rack and the piston rod is connected to the driving frame enables the extension and retraction action of the oil cylinder to be directly and efficiently transmitted to the driving frame, so that the distance (installation center distance) between the driving sprocket and the guide wheel is quickly changed, and the response speed of adjustment is fast; the connection structure is simple and stable in stress, and is not prone to transmission gap or failure, thereby reducing energy loss and component wear during adjustment, prolonging the service life of the tension execution module, ensuring the accuracy of installation distance adjustment, and avoiding tension adjustment failure caused by transmission problems.

[0024] Further, the control module is also used for storing basic parameters D1, D4, n and s of different models of conveyors and corresponding F4 threshold values A and B, and the basic parameters and the threshold values A and B are modified and saved through a man-machine interaction interface; the control module has the parameter storage and modification function, can adapt to the parameter differences of different models of conveyors, does not need to be designed separately for each type of conveyor, and greatly improves the universality of the system; the parameters are modified through the man-machine interaction interface, the operation is convenient, the F4 threshold values A and B can be flexibly adjusted according to the actual working conditions (such as cargo density and volume change) of the conveyor, the tension adjustment is more suitable for actual needs, the adjustment inadaptation problem caused by fixed threshold values is avoided, and the flexibility and practicability of the system are further enhanced.

[0025] Further, the sensor module further comprises a displacement sensor arranged on the tension cylinder and used for measuring the real-time displacement of the tension cylinder; the control module further assists in judging whether the tension cylinder reaches the initial set position or the target adjustment position based on the displacement information collected by the displacement sensor; by adding the displacement sensor, a direct basis is provided for position judgment of the tension cylinder, and errors in position judgment caused by only relying on pressure parameters (such as pressure fluctuation affecting position judgment caused by oil temperature change) are avoided; the displacement information cooperates with information such as pressure and torque, so that the control module can more accurately confirm whether the tension cylinder reaches the initial position or the target adjustment position, and the accuracy of position control is improved; at the same time, the displacement information can also be used as an auxiliary reference for tension calculation, further reducing the tension calculation error, and ensuring the reliability and accuracy of the whole system adjustment.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] 1、The present application realizes optimization through state control, controls the tension cylinder to be in the initial set position when stopping, can eliminate the plastic deformation of the chain accumulated due to the ratchet behavior, and lays a stable foundation for the next start; when starting, the chain tension on the drive sprocket side is calculated based on the basic parameters of the conveyor and sensor information, the basic parameters include the initial meshing diameter of the tight side of the drive sprocket, the meshing point diameter of the loose side, the number of teeth and the bottom cavity cross-sectional area of the tension cylinder, the sensor information includes the drive torque, the cylinder pressure and the chain wheel speed, without relying on high-precision complex sensors, the maintenance cost and error risk are reduced, at the same time, the loose side tension adjustment threshold is set, the system is avoided from frequent action, and the problems of chain sagging, chain stacking and chain jumping are effectively prevented.

[0028] 2、The system of the present application adopts modular design, the structure is clear and the functions of each module are independent, which is convenient for installation, maintenance and fault diagnosis. The control module can store the basic parameters and loose side tension threshold of different models of conveyors, and can also modify the parameters through the man-machine interface, adapt to multiple models and different working conditions. Full-process automatic control reduces manual intervention, not only improves the stability and effective operation time of the equipment, but also reduces the wear and tear of the tension cylinder and the chain, prolongs the service life, and takes into account the technical practicability and economy, and adapts to the needs of various chain conveyors. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a flow chart of a method for dynamically adjusting the installation distance of a conveyor according to chain tension;

[0030] Figure 2 It is a force diagram of a conveyor;

[0031] Figure 3 It is a structural schematic diagram of the deformation of the transport chain caused by force during the movement of the existing conveyor. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0033] Please refer to Figures 1-3 The present application provides a technical solution: a method and system for dynamically adjusting the installation distance of a conveyor according to chain tension, aiming to solve the problems of low sensor precision and accuracy and high maintenance cost in the existing automatic tensioning technology of the conveyor chain, ensure stable operation of the conveyor under different working conditions, and avoid chain sagging, chain stacking and chain jumping failures.

[0034] Refer to Figure 2, the force diagram of the conveyor, F1 is the upper chain drive sprocket side tension (tight side drive sprocket side), obtained by calculation; F4 is the lower chain drive sprocket side tension (loose side drive sprocket side), obtained by calculation; D1 is the drive sprocket tight side initial meshing point diameter, design value; D4 is the drive sprocket loose side meshing point diameter, design value; n is the number of teeth; Ω is the speed, measured by the reducer output sensor; T is the time; T drieve is the driving torque of the drive sprocket, measured by the reducer output sensor; P is the tension cylinder pressure, measured by the sensor; s is the tension cylinder bottom cavity cross-sectional area;

[0035] The equation is as follows:

[0036] F1+F4=F-F f ;

[0037]

[0038] F=Ps;

[0039] According to the above equation, F1 and F4 can be obtained.

[0040] The method realizes dynamic adjustment of the installation distance by "state control", that is, different operations are performed according to the "stop / start" state of the conveyor, and the core is to calculate the chain tension by using basic parameters and low-cost sensor information, avoiding relying on complex sensing systems.

[0041] A method for dynamically adjusting the installation distance of a conveyor according to the chain tension, comprising:

[0042] Obtaining the start / stop information of the conveyor;

[0043] When the start / stop information is in the stop state, the extension cylinder of the conveyor tension force is in the initial set position;

[0044] When the start / stop information is in the start state, the drive sprocket side chain tension information is obtained based on the basic parameters and sensor information of the conveyor;

[0045] Based on the real-time tension information, the tension extension cylinder of the conveyor is automatically controlled to achieve the purpose of changing the installation center distance.

[0046] The specific implementation steps are as follows:

[0047] Step 1: Obtain the start / stop information of the conveyor, first determine whether the conveyor is started.

[0048] Step 2: If the conveyor is in the stop state, the tension cylinder position is in the initial set position. At this time, the cylinder pressure is P, and the displacement L1 can eliminate the plastic deformation amount accumulated by the chain due to the ratchet behavior.

[0049] Step 3: If the conveyor is in the start-up state, the conveyor chain automatic tensioning system enters the automatic control mode.

[0050] At this time, the control system calculates the driving sprocket meshing in and out of the chain tension according to the real-time tension of the conveyor, the driving sprocket speed, the torque, the tension cylinder pressure and displacement information, and controls the automatic extension and retraction of the tension cylinder.

[0051] Set F 4max = A, F 4min = B. When the real-time calculation value F4≥A, the system controls the retraction of the extension and retraction cylinder, and adjusts the F4 value to

[0052] In order to avoid frequent adjustment of the system to the tension, set the tension values A and B, and the system does not adjust the tension within this interval. If the tension value exceeds the interval, it is adjusted to

Claims

1. A method for dynamically adjusting the installation distance of a conveyor according to chain tension, characterized in that: The following steps are involved: Step 1: Obtain the start and stop information of the conveyor to determine whether the conveyor is in the start state or the stop state; Step 2: If the conveyor is in a stopped state, control the tensioning cylinder used to adjust the tension of the conveyor to the initial setting position. In the initial setting position, the pressure of the tensioning cylinder is P and the displacement is L1. The initial setting position can eliminate the plastic deformation accumulated by the ratcheting behavior of the conveyor chain. Step 3: If the conveyor is in the on state, calculate the real-time chain tension information on the conveyor drive sprocket side based on the basic parameters of the conveyor and the sensor information; the basic parameters include the initial engagement point diameter D1 of the drive sprocket tight side, the meshing point diameter D4 of the drive sprocket loose side, the number of drive sprocket teeth n, and the cross-sectional area s of the tensioning cylinder bottom cavity; the sensor information includes the drive torque T of the drive sprocket measured at the output end of the reducer. drieve , the pressure P measured at the tensioning cylinder, and the speed Ω of the drive sprocket; the real-time chain tension information includes at least the side tension F4 of the lower chain drive sprocket; Step 4: Automatically control the extension and retraction of the tensioning cylinder based on the real-time chain tension information to change the installation center distance of the conveyor; specifically: set the maximum value F of F4 4max =A, minimum value F 4min = B, if the real-time calculated F4≥A or F4≤B, the tensioning cylinder is controlled to extend and retract, and F4 is adjusted to If the F4 calculated in real time is within the interval [A, B], F4 is not adjusted to avoid frequent tension adjustments by the system.

2. The method for dynamically adjusting the installation distance of a conveyor according to chain tension according to claim 1, characterized in that: In step 3: calculation is performed based on the basic parameters of the conveyor and the sensor information to obtain the real-time chain tension information on the conveyor drive sprocket side, specifically the upper chain drive sprocket side tension F1 and the lower chain drive sprocket side tension F4 are calculated according to a preset equation; the preset equation at least includes F=Ps, where F is the output force of the tensioning cylinder, P is the tensioning cylinder pressure, and s is the cross-sectional area of ​​the tensioning cylinder bottom cavity.

3. The method for dynamically adjusting the installation distance of a conveyor according to chain tension according to claim 1, characterized in that: In step 1, the start and stop information of the conveyor is obtained by establishing data interaction with the conveyor control system and detecting whether the rotation speed Ω of the drive sprocket is 0; if Ω=0, it is determined that the conveyor is in the stopped state; if Ω>0, it is determined that the conveyor is in the started state.

4. The method for dynamically adjusting the installation distance of a conveyor according to chain tension according to claim 1, characterized in that: In step 3, the rotational speed Ω of the driving sprocket is measured by an angle sensor provided at the output end of the reducer and the shaft end of the driving sprocket. The angle sensor converts the collected angle signal into a rotational speed signal to obtain Ω.

5. The method for dynamically adjusting the installation distance of a conveyor according to chain tension according to claim 1, characterized in that: In step 2, the initial setting position of the tensioning cylinder is pre-calibrated according to the design length of the conveyor chain, the initial tensioning requirement and the plastic deformation compensation amount, and the pressure P and displacement L1 of the initial setting position can be adjusted according to the parameters of different types of conveyors.

6. A system for dynamically adjusting the installation distance of a conveyor according to chain tension, characterized in that: include: Conveyor body: The conveyor body includes a drive frame, guide wheels, a frame, a scraper chain and a drive sprocket. The scraper chain is wound around the drive sprocket and guide wheels. The drive frame is used to install the drive sprocket. The frame provides support for the entire conveyor. Sensor module: The sensor module includes a torque sensor, a pressure sensor and an angle sensor; the torque sensor is set at the output end of the reducer to measure the driving torque T applied to the driving sprocket. drieve The pressure sensor is set on the tensioning cylinder to measure the pressure P of the tensioning cylinder; the angle sensor is set at the output end of the reducer or the drive sprocket shaft end to measure the speed of the drive sprocket Ω; Tensioning execution module: The tensioning execution module is a tensioning cylinder, which is connected to the drive frame and is used to adjust the position of the drive frame by telescoping, thereby changing the installation center distance of the conveyor; Control module: The control module is electrically connected to the sensor module and the tensioning execution module. The control module is used to obtain the start and stop information of the conveyor and determine whether the conveyor is in the start state or the stop state; If the conveyor is in a stopped state, the tensioning cylinder is controlled to be in the initial setting position. At the initial setting position, the pressure of the tensioning cylinder is P and the displacement is L1, and the plastic deformation accumulated by the scraper chain due to the ratchet behavior can be eliminated; If the conveyor is in the on state, based on the basic parameters of the conveyor and the information collected by the sensor module, the basic parameters include D1, D4, n, s, and the information collected by the sensor module includes T drieve , P, Ω, calculate the real-time chain tension information on the driving sprocket side, including at least F4; Control the extension and contraction of the tensioning cylinder based on real-time chain tension information: Set F 4max =A, F 4min =B, if F4≥A or F4≤B, control the tensioning cylinder to adjust F4 to If F4∈[A, B], no adjustment is made.

7. A system for dynamically adjusting the installation distance of a conveyor according to chain tension as claimed in claim 6, characterized in that: The control module pre-stores a preset equation for calculating F1 and F4, which at least includes F=Ps and T drieve , Ω, D1, and D4 are related torque-tension correlation equations. F is the output force of the tensioning cylinder. The control module obtains the real-time chain tension information by calling the preset equation.

8. The system for dynamically adjusting the installation distance of a conveyor according to chain tension as claimed in claim 6, characterized in that: The cylinder body of the tensioning cylinder is fixedly connected to the frame, and the piston rod of the tensioning cylinder is fixedly connected to the driving frame. The driving frame is driven closer to or away from the guide wheel by extending or retracting the piston rod, thereby changing the distance between the driving sprocket and the guide wheel, that is, the installation center distance of the conveyor.

9. The system for dynamically adjusting the installation distance of a conveyor according to chain tension as claimed in claim 6, characterized in that: The control module is also used to store the basic parameters of different types of conveyors, D1, D4, n, s, and the corresponding F4 thresholds A and B, and to modify and save the basic parameters and thresholds A and B through the human-computer interaction interface.

10. The system for dynamically adjusting the installation distance of a conveyor according to chain tension according to claim 6, characterized in that: The sensor module also includes a displacement sensor, which is arranged on the tensioning cylinder and is used to measure the real-time displacement of the tensioning cylinder; the control module also assists in determining whether the tensioning cylinder has reached the initial set position or the target adjustment position based on the displacement information collected by the displacement sensor.