Non-metal chain mud scraper operation monitoring system

Abstract

The utility model discloses an operation monitoring system for a non-metal chain mud scraper, which relates to the technical field of mud scraper monitoring and comprises a traction chain tension monitoring structure comprising a tension sensor connected with the end part of a tensioning shaft through a metal rope; the guide chain wheel stroke monitoring structure comprises a plurality of metal signal patches, the metal signal patches are evenly arranged on the periphery of a guide chain wheel, and a proximity signal sensor is arranged on a support of the guide chain wheel. The torque limiting structure comprises an overload signal sensor and a ball, the ball moves in the axial direction of the driving wheel, and the overload signal sensor is in driving connection with the ball; the monitoring unit is in control connection with the traction chain tension monitoring structure, the guide chain wheel stroke monitoring structure and the torque limiting structure; according to the monitoring system, continuous damage caused by running of the driving chain after a fault occurs can be reduced, the torque overload recovery period of the gear motor is shortened, and real-time cloud monitoring of running of the mud scraper is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the mud scraper monitoring technical field, more specifically, it relates to a non-metal chain mud scraper operation monitoring system. BACKGROUND

[0002] The existing non-metal chain mud scraper adopts double chain type traction form, every 3 meters of the traction chain of the equipment is provided with a scraper link, the scraper link is fixed with the scraper, and the whole is connected into a ring through the links. The scraper is in contact with the guide rail arranged at the pool bottom and slowly moves to scrape the pool bottom sludge into the sludge tank at the pool end, and simultaneously scrapes the dross and floating oil on the pool surface into the dross tank to create conditions for sludge and dross discharge.

[0003] The traction chain of the non-metal chain mud scraper is the main stressed component of the whole machine, is responsible for transmitting the driving force output by the driving device to each scraper, and drives the scraper to scrape the pool bottom sludge into the sludge hopper. The most common faults of the existing mud scraper mainly include two kinds:

[0004] 1. Traction chain fracture: at present, the fault signal is fed back through the scraper chain monitoring device, and the principle is that when the traction chain on one side is broken, the scraper on the side cannot feed back the running signal within the predetermined time range to judge the equipment failure;

[0005] 2. Motor overload: current overload protection and driving wheel shear pin are adopted to prevent the motor from being damaged by overload.

[0006] The existing mud scraper operation monitoring and protection measures mainly have the following problems:

[0007] The traction chain fracture (failure) monitoring period is too long, and the scraper monitoring signal interval is 3 minutes;

[0008] The driving wheel shear pin belongs to a physical protection measure, and no instant signal is fed back after fracture, so that the machine cannot be stopped in time;

[0009] The driving wheel shear pin is time-consuming and laborious to replace. UTILITY MODEL CONTENTS

[0010] The utility model aims at the deficiencies in the prior art, provides a non-metal chain mud scraper operation monitoring system, which can reduce the continuous damage caused by the driving chain operation after failure, reduce the recovery period of the torque overload of the speed reducer, and realize real-time cloud monitoring of the mud scraper operation.

[0011] In order to realize the above object, the utility model provides a non-metal chain mud scraper operation monitoring system, which comprises:

[0012] The traction chain tension monitoring structure comprises a tension sensor, and the tension sensor is connected with the end of the tensioning shaft through a metal rope;

[0013] The guiding sprocket stroke monitoring structure comprises a plurality of metal signal patches uniformly arranged on the outer periphery of the guiding sprocket, and a proximity signal sensor arranged on the support of the guiding sprocket, wherein the metal signal patches are matched with the proximity signal sensor.

[0014] The torque limiting structure comprises an overload signal sensor and a ball, wherein the ball moves along the axial direction of the driving wheel, and the overload signal sensor is drivingly connected with the ball.

[0015] The monitoring unit is in control connection with the traction chain tension monitoring structure, the guiding sprocket stroke monitoring structure and the torque limiting structure.

[0016] Optionally, the tension sensor is arranged at both ends of the tensioning shaft.

[0017] Optionally, the tension sensor is arranged in the vertical direction, the guide wheel is arranged at the same height as the tensioning shaft, and the metal rope is wound around the outer periphery of the guide wheel.

[0018] Optionally, the tension sensor is located above the liquid level of the sedimentation tank, and the tension sensor is in communication connection with the mobile phone app through the monitoring unit.

[0019] Optionally, a timing module is arranged in the proximity signal sensor, and the timing module is in control connection with the non-metal chain mud scraper.

[0020] Optionally, the material of the metal signal patch is stainless steel.

[0021] Optionally, the guiding sprocket is located in the upper region of the non-metal chain mud scraper.

[0022] Optionally, the torque limiting structure further comprises a driven wheel corresponding to the driving wheel, one side of the driving wheel close to the driven wheel is connected with the ball, and the other side of the driving wheel away from the driven wheel is provided with a spring.

[0023] Optionally, the monitoring frequency of the monitoring unit is 10s.

[0024] The utility model provides a kind of nonmetal chain mud scraper operation monitoring system, it has beneficial effect to be in that monitoring system sets three part structures, traction chain tension monitoring structure can be to the tension monitoring of tension shaft, when traction chain appears fracture, tension shaft is not in the restraint of traction chain, the tension of tension shaft is instantaneously reduced to zero, traction chain tension monitoring structure can immediately send monitoring result to monitoring unit, in addition, guiding sprocket stroke monitoring structure can be to the rotation of guiding sprocket It is monitored, when mud scraping plate appears failure, the rotation speed of guiding sprocket changes, so that the frequency of signal produced by proximity signal sensor changes, when the time of signal feedback exceeds set range, guiding sprocket stroke monitoring structure will send fault signal to monitoring unit;Torque limiting structure monitors the torque of mud scraper, when torque exceeds preset value, ball will move to make driving wheel and driven wheel disconnect, so that mud scraper is not overloaded to run, avoid the phenomenon that driving system is damaged.

[0025] Other features and advantages of the utility model will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and other objects, features and advantages of the utility model will become more apparent from the following detailed description of exemplary embodiments of the utility model, taken in conjunction with the accompanying drawings in which like reference characters commonly refer to the same or similar elements throughout the drawings of which, in the utility model exemplary embodiments, the same reference characters are generally used to refer to the same members.

[0027] Fig. 1 It shows the structure diagram of nonmetal chain mud scraper with nonmetal chain mud scraper operation monitoring system according to one embodiment of the utility model.

[0028] Fig. 2 It shows the structure diagram of traction chain tension monitoring structure according to one embodiment of the utility model.

[0029] Fig. 3 It shows the structure diagram of guiding sprocket stroke monitoring structure according to one embodiment of the utility model.

[0030] Fig. 4 It shows the structure diagram of torque limiting structure according to one embodiment of the utility model.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] 1, tension sensor;2, metal rope;3, tension shaft;4, metal signal patch;5, guiding sprocket;6, proximity signal sensor;7, ball;8, driving wheel;9, guide wheel;10, driven wheel;11, spring. DETAILED DESCRIPTION

[0033] Preferred embodiments of the present application will be described in more detail below. Although the following describes preferred embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application is more thorough and complete, and to convey the scope of the present application to those skilled in the art.

[0034] The utility model provides a kind of non-metal chain mud scraper operating monitoring system, comprising:

[0035] Tow chain tension monitoring structure, including tension sensor, tension sensor is connected with the end of tensioning shaft by metal rope;

[0036] Guiding sprocket stroke monitoring structure, including multiple metal signal patches, metal signal patch is evenly arranged on the outer periphery of guiding sprocket, proximity signal sensor is provided on the support of guiding sprocket, and metal signal patch is matched with proximity signal sensor;

[0037] Torque limiting structure, including overload signal sensor and ball, ball moves along the axial direction of driving wheel, and overload signal sensor is drivenly connected with ball;

[0038] Monitoring unit, with tow chain tension monitoring structure, guiding sprocket stroke monitoring structure and torque limiting structure control connection.

[0039] Specifically, the monitoring system takes the tension value of tensioning shaft, the rotating speed of guiding sprocket and operating torque value as monitoring object, when abnormal tension value, rotating speed and abnormal torque of mud scraper appear, alarm signal can be sent to monitoring unit, and staff can stop the operation of mud scraper, to avoid causing greater damage to mud scraper.

[0040] Optionally, tension sensor is arranged at both ends of tensioning shaft respectively.

[0041] Specifically, the tow chain tension monitoring structure is provided with tension sensor at both ends of tensioning shaft respectively, since mud scraper is driven by tow chain on both sides to drive scraper to scrape mud and push dregs, when one side tow chain appears rotating abnormality, it will affect the operation effect of mud scraper, and both ends are provided with tension sensor, so that the operation of two tow chains of mud scraper can be more accurately monitored.

[0042] Optionally, tension sensor is arranged along vertical direction, guiding wheel is arranged at the same height position with tensioning shaft, and metal rope is wound on the outer periphery of guiding wheel.

[0043] Optionally, tension sensor is located above the liquid level of sedimentation tank, and tension sensor is communicated and connected with mobile phone app through monitoring unit.

[0044] Specifically, the tension sensor is connected with the tensioning shaft through a metal rope, so that the running state of the traction chain can be accurately monitored, and the guide wheel is arranged in the traction chain tension monitoring structure, so that the tension sensor can be arranged away from the moving range of the scraper, and the tension sensor is arranged above the liquid level, so that the sewage in the sedimentation tank does not pollute the tension sensor, and the service life of the monitoring system is improved.

[0045] Optionally, a timing module is arranged in the proximity signal sensor, and the timing module is connected with the non-metal chain mud scraper in control.

[0046] Optionally, the material of the metal signal patch is stainless steel.

[0047] Optionally, the guide sprocket is located in the upper region of the non-metal chain mud scraper.

[0048] Specifically, a timing module is arranged in the guide sprocket stroke monitoring structure, when the traction chain rotates normally, the guide sprocket rotates synchronously with the chain, so that the metal signal patch on the guide sprocket generates a proximity signal periodically, and when the interval time of the proximity signal changes or is interrupted under the condition that the running speed of the mud scraper is unchanged, it proves that the mud scraper has a problem, and the staff can check the mud scraper, so that the traction chain is prevented from being continuously damaged and causing greater failure. In addition, the guide sprocket stroke monitoring structure is arranged on the upper guide sprocket of the mud scraper, so that the metal signal patch is not affected by the sludge at the bottom of the sedimentation tank, and the normal generation of the proximity signal is ensured.

[0049] Optionally, the torque limiting structure further comprises a driven wheel corresponding to the driving wheel, the driving wheel is connected with the ball on the side close to the driven wheel, and the driving wheel is provided with a spring on the side away from the driven wheel.

[0050] Specifically, a torque limiter is arranged in the torque limiting structure, which has the same structure as the torque limiter on the market, and the driving wheel is driven to displace in the axial direction by the spring, when the torque does not exceed the preset value, the spring abuts against the driving wheel on the driven wheel, power output is realized through the clamping transmission of the ball, when the torque exceeds the preset value, the spring is extruded, the driving wheel is separated from the driven wheel, and power transmission is disconnected, so as to avoid damage to the driving system. When the overload is eliminated, the speed reducer is started, the torque limiter is automatically reset, the driven wheel receives power again, and the driving chain and the driving wheel do not need to be disassembled.

[0051] Optionally, the monitoring frequency of the monitoring unit is 10s.

[0052] Specifically, the non-metal chain mud scraper operation monitoring system can reduce the traction chain breakage fault judgment time from 3 minutes to within 10 seconds, reduce the continuous damage caused by the driving chain operation after the fault occurs, reduce the recovery period of the overload torque of the speed reducer, and realize real-time cloud monitoring of the mud scraper operation.

[0053] The use method of the non-metal chain mud scraper operation monitoring system is:

[0054] The traction chain tension monitoring structure monitors the tension value of the tension shaft, and sends an alarm information to the monitoring unit when the tension changes abnormally;

[0055] The guide sprocket stroke monitoring structure monitors the signal generated by the proximity signal sensor, and sends a fault information to the monitoring unit when the signal cannot be received;

[0056] The torque limiting structure monitors the torque value of the non-metal chain mud scraper, and the ball moves to stop the operation of the non-metal chain mud scraper when the torque value is greater than the preset value.

[0057] Embodiment

[0058] As Figs. 1 to 4 shown, the utility model provides a non -metal chain mud scraper operation monitoring system, include:

[0059] Traction chain tension monitoring structure, including tension sensor 1, and tension sensor is connected with the end of tension shaft 3 through metal rope 2;

[0060] The guide sprocket stroke monitoring structure, including a plurality of metal signal patches 4, the metal signal patches 4 are uniformly arranged on the outer periphery of the guide sprocket 5, the proximity signal sensor 6 is arranged on the support of the guide sprocket 5, and the metal signal patch 4 is matched with the proximity signal sensor 6;

[0061] Torque limiting structure, including overload signal sensor and ball 7, ball 7 moves along the axial direction of driving wheel 8, and the overload signal sensor is drivenly connected with the ball 7;

[0062] Monitoring unit, traction chain tension monitoring structure, guide sprocket stroke monitoring structure and torque limiting structure control connection.

[0063] In this embodiment, the tension sensor 1 is arranged at both ends of the tension shaft 3.

[0064] In this embodiment, the tension sensor 1 is arranged along the vertical direction, the guide wheel 9 is arranged at the same height position as the tension shaft 3, and the metal rope 2 is wound around the outer periphery of the guide wheel 9.

[0065] In the embodiment, the tension sensor 1 is located above the liquid surface of the sedimentation tank, and the tension sensor 1 is in communication connection with the mobile phone app through the monitoring unit.

[0066] In the embodiment, a timing module is arranged in the proximity signal sensor 6, and the timing module is in control connection with the non-metal chain mud scraper.

[0067] In the embodiment, the material of the metal signal patch 4 is stainless steel.

[0068] In the embodiment, the guide sprocket 5 is located in the upper region of the non-metal chain mud scraper.

[0069] In the embodiment, the torque limiting structure further includes a driven wheel 10 corresponding to the driving wheel 8, the driving wheel 8 is connected with the ball 7 on the side close to the driven wheel 10, and the driving wheel 8 is provided with a spring 11 on the side away from the driven wheel 10.

[0070] In the embodiment, the monitoring frequency of the monitoring unit is 20s.

[0071] In summary, the monitoring system adds a steel wire rope and a tension sensor 1 at both ends of the tension shaft 3, when one side or both sides of the traction chain breaks, according to the feedback signal generated by the change of the tension, it is determined that the mud scraper fails, the tension sensor 1 can feedback the running tension of the traction chain of the mud scraper in real time, and sends it to the PLC and then to the mobile phone app through remote transmission, so that the running condition of the mud scraper can be monitored at any time, and when the tension changes abnormally, the machine stops immediately and sends an alarm information to the worker. In addition, the guide sprocket stroke monitoring structure is added to the guide sprocket support part in the upper region of the mud scraper, 12 pieces of stainless steel signal patches are evenly embedded on the guide sprocket 5, and a proximity signal sensor 6 is installed on the support of the guide sprocket 5. When the mud scraper runs normally, the guide sprocket 5 will rotate at a constant speed with the traction chain driven by the speed reducer motor, at this time, the proximity signal sensor 6 will receive a proximity signal of a stainless steel patch every 10s, when the mud scraper fails and stops running, the guide sprocket will stop rotating at the first time, the guide sprocket monitoring signal feedback time will exceed the set range, it is determined that the mud scraper fails, the signal feedback time is set to 20s, if no feedback signal is received within 20s, the system determines that the equipment fails, and the signal is fed back to the PLC. A torque limiter is further added between the driving wheel 8 and the speed reducer motor of the mud scraper, so as to replace the existing shear pin, when the torque exceeds the preset value, the ball 7 and the driving wheel 8 and the driven wheel 10 are separated and freely roll, so that the driving and driven parts are completely separated, preventing damage to the driving system; when the torque limiter is overloaded, the signal sensor will feed back the fault signal to the PLC and stop running, when the overload is eliminated, the speed reducer motor is started, and the torque limiter will automatically restore the transmission without disassembling the driving chain and the driving wheel.

[0072] The above has described various embodiments of the present application, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A non-metallic chain scraper operation monitoring system, characterized in that: include: A traction chain tension monitoring structure includes a tension sensor connected to the end of a tensioning shaft via a metal rope; The guide sprocket travel monitoring structure includes a plurality of metal signal patches, which are evenly arranged on the outer periphery of the guide sprocket. A proximity signal sensor is provided on the support of the guide sprocket, and the metal signal patches cooperate with the proximity signal sensor. The torque limiting structure includes an overload signal sensor and a ball, wherein the ball moves along the axial direction of the driving wheel, and the overload signal sensor is drivingly connected to the ball; The monitoring unit is controllably connected to the traction chain tension monitoring structure, the guide sprocket stroke monitoring structure and the torque limiting structure.

2. The non-metallic chain scraper operation monitoring system according to claim 1 is characterized in that: The tension sensors are respectively arranged at both ends of the tensioning shaft.

3. The non-metallic chain scraper operation monitoring system according to claim 1 is characterized in that: The tension sensor is arranged in a vertical direction, the guide sprocket is arranged at the same height as the tensioning shaft, and the metal rope is wound around the outer circumference of the guide sprocket.

4. The non-metallic chain scraper operation monitoring system according to claim 1 is characterized in that: The tension sensor is located above the liquid level of the sedimentation tank, and the tension sensor is connected to the mobile phone app through the monitoring unit.

5. The non-metallic chain scraper operation monitoring system according to claim 1 is characterized in that: A timing module is provided in the proximity signal sensor, and the timing module is control-connected to the non-metallic chain scraper.

6. The non-metallic chain scraper operation monitoring system according to claim 1 is characterized in that: The material of the metal signal patch is stainless steel.

7. The non-metallic chain scraper operation monitoring system according to claim 1 is characterized in that: The guide sprocket is located in the upper area of ​​the non-metallic chain scraper.

8. The non-metallic chain scraper operation monitoring system according to claim 1 is characterized in that: The torque limiting structure further includes a driven wheel corresponding to the driving wheel. A side of the driving wheel close to the driven wheel is connected to the ball bearing, and a side of the driving wheel away from the driven wheel is provided with a spring.

9. The non-metallic chain scraper operation monitoring system according to claim 1, characterized in that: The monitoring frequency of the monitoring unit is 10s.

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