Indicating device for measuring deviation displacement analog quantity of belt

Abstract

An indicating device for measuring belt deviation displacement analog quantity belongs to the technical field of belt conveyors and comprises a conveyor frame, a conveying belt is arranged on the conveyor frame, supporting frames are uniformly distributed on two sides of the conveying belt, the lower ends of the supporting frames are mounted on the conveyor frame, and belt displacement conversion vertical rollers are hinged to the upper ends of the supporting frames. The swinging direction of the belt displacement conversion vertical roller is perpendicular to the conveying direction of the conveying belt, the inner side of the swinging direction of the belt displacement conversion vertical roller is connected with a belt displacement conversion module installed on the supporting frame, and the outer side of the swinging direction of the belt displacement conversion vertical roller abuts against a spring telescopic sleeve rod installed on the supporting frame. The initial inclination angle of the belt displacement conversion vertical roller is stable through abutting of the spring telescopic sleeve rod and the belt displacement conversion module, after the conveying belt deviates, the belt displacement conversion module is pulled by the belt displacement conversion vertical roller, the specific offset is recorded, and the accuracy of the offset is improved. The limitation that a traditional switch can only judge by outputting on-off signals is overcome.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of belt conveyors, and particularly relates to an indicating device for measuring a displacement analog quantity of belt deviation. BACKGROUND

[0002] In the technical field of belt conveying, a belt conveyor has been widely applied to agricultural, industrial and mining, and transportation industries for conveying various solid bulk materials or piece goods due to its advantages of continuity, high efficiency, large angle of inclination, etc. The belt conveyor not only has safe operation and simple maintenance, but also can effectively reduce transportation cost and shorten transportation distance, and has significant economic benefits. However, in actual operation, belt deviation is one of the most common and serious faults. The belt deviation not only easily triggers emergency shutdown and affects production continuity, but also causes abnormal axial force on the drum and the carrier roller, accelerates bearing damage and belt wear, and even causes safety and environmental problems such as material spilling, dust pollution, and belt tearing. Therefore, timely and accurate monitoring and control of the belt deviation are of great significance to ensure stable operation of the equipment and improve work efficiency and safety.

[0003] At present, common belt deviation monitoring methods mainly include mechanical deviation switch and manual inspection. The deviation switch is usually based on the structural design of a vertical roller and a micro switch trigger. The switch signal is triggered after the belt edge contacts the vertical roller, and light deviation alarm or heavy deviation shutdown is realized. However, this kind of device can only output a switch signal, and cannot reflect the actual displacement size and change trend of the belt deviation. Moreover, due to long-term work in a dusty and vibrating environment, node faults and false actions are prone to occur, maintenance frequency is high, and power-off operation is required, which affects production. On the other hand, depending on the operation or maintenance personnel to inspect through the scene or monitoring, due to factors such as large dust in the environment and insufficient clarity of the monitoring picture, there are problems such as identification lag and subjective judgment, and it is difficult to prevent the belt deviation from worsening in time. SUMMARY

[0004] In order to solve the problems that the current deviation monitoring method cannot monitor the deviation of the belt and the monitoring method is invalid due to the influence of the scene environment, the application provides an indicating device for measuring a displacement analog quantity of belt deviation.

[0005] The application is realized by the following technical solutions: The utility model provides an indicating device for measuring the analog quantity of belt deviation displacement, comprising a conveyor frame, a conveyor belt provided on the conveyor frame, support frames provided on both sides of the conveyor belt, the lower end of the support frame being installed on the conveyor frame, and a belt displacement conversion vertical roller hinged to the upper end of the support frame, wherein the swinging direction of the belt displacement conversion vertical roller is perpendicular to the conveying direction of the conveyor belt, the inner side of the swinging direction of the belt displacement conversion vertical roller is connected to a belt displacement conversion module installed on the support frame, and the outer side of the swinging direction of the belt displacement conversion vertical roller abuts against a spring telescopic sleeve rod installed on the support frame.

[0006] The initial inclination angle of the belt displacement conversion vertical roller is stabilized by abutting the spring telescopic sleeve rod against the belt displacement conversion module, and when the conveyor belt deviates, the belt displacement conversion module is pulled by the belt displacement conversion vertical roller, and the specific deviation is recorded, thereby overcoming the limitation that the traditional switch can only judge through an output on-off signal.

[0007] Further improvements of the utility model include that the support frame is further provided with a sliding block adjusting assembly, which can limit the angle of the belt displacement conversion vertical roller tilting to one side of the conveyor belt. The sliding block adjusting assembly allows the initial zero point of the belt displacement conversion vertical roller to be accurately set and finely adjusted, taking the system output as the zero point reference, thereby improving the initial calibration accuracy and adaptability of the measuring system, and the measuring system can adapt to different installation conditions and initial states of the conveyor belt.

[0008] Further improvements of the utility model include that the sliding block adjusting assembly comprises a sliding plate, a sliding groove is formed in the sliding plate, the length direction of the sliding groove is in the same vertical plane as the swinging direction of the belt displacement conversion vertical roller, the belt displacement conversion vertical roller passes through the sliding groove, and a sliding block is further provided in the sliding groove and abuts against the belt displacement conversion vertical roller on the inner side of the swinging direction of the belt displacement conversion vertical roller. The cooperation structure of the sliding groove and the sliding block is simple and reliable, provides a clear mechanical limit and adjustment track for the swinging of the belt displacement conversion vertical roller, and makes the adjustment action intuitive and linear, thereby facilitating the accurate initial position setting of the on-site personnel.

[0009] Further improvements of the utility model include that the sliding block is adjusted to a fixed position in the sliding groove by a locking bolt. The locking bolt is adopted for fixation in consideration of the harsh conditions of the on-site environment, and the adjustment is convenient and fastening is reliable, which can effectively prevent the sliding block from being accidentally displaced during the vibration process of the equipment operation, thereby ensuring the long-term stability of the zero point calibration.

[0010] Further improvements of the present application also have the top pressure contact piece connected with the telescopic end of the spring telescopic sleeve rod to increase the contact area with the belt displacement conversion vertical roller. The top pressure contact piece expands the force contact surface with the belt displacement conversion vertical roller, makes the reset force of the spring more uniform and stable, reduces the risk of local wear and jamming, and at the same time ensures that the belt displacement conversion vertical roller can be stably and accurately returned to the initial zero position when the belt is not deviated.

[0011] Further improvements of the present application also have the bottom of the belt displacement conversion vertical roller installed on the top of the support frame through the indicating push rod, and the indicating push rod is in contact with the spring telescopic sleeve rod, the belt displacement conversion module and the slider adjusting assembly respectively. The indicating push rod serves as a support component for the rotation of the belt displacement conversion vertical roller, avoiding the wear of the belt displacement conversion vertical roller and the adjacent contact components caused by the high-speed rotation of the belt displacement conversion vertical roller after contacting the conveying belt.

[0012] Further improvements of the present application also have the top of the support frame further provided with a displacement sensor capable of being linked with the indicating push rod. The displacement sensor is directly linked with the indicating push rod, can convert the mechanical displacement amount of the belt deviation into standard analog electrical signals in real time and continuously, realizes accurate quantitative monitoring of the size and trend of the deviation, provides continuous data for the upper computer system, thereby supporting the setting of grading alarm and tripping threshold, and realizes precise control.

[0013] Further improvements of the present application also have the top of the support frame further provided with a friction generator, the friction generator is provided with a friction wheel and an auxiliary wheel, the friction wheel and the auxiliary wheel are in abutment with the belt displacement conversion vertical roller; one side of the friction wheel is further provided with an indicating lamp, the indicating lamp can be turned on after the mechanical energy is converted into electrical energy by the friction wheel. The rotation mechanical energy of the belt displacement conversion vertical roller is converted into electrical energy by the friction wheel to drive the indicating lamp to light up, providing a completely mechanical, externally powered on-site visual alarm mode, enhancing the reliability in extreme electrical environment or as an auxiliary alarm, and realizing self-powered indication.

[0014] Further improvements of the present application also have the rubber ring outside the friction wheel. The rubber ring increases the friction coefficient, improves the energy conversion efficiency, and at the same time plays the role of buffering and noise reduction, reduces the hard impact and wear of the belt displacement conversion vertical roller, and prolongs the service life of the related components.

[0015] Further improvements of the present application also have the support frames on both sides of the conveying belt arranged in a staggered manner. The staggered arrangement avoids the concentration of the support frames and the detection devices thereon in the transverse direction of the belt, reduces the additional resistance or interference that may be generated by the transverse movement of the belt, makes the measurement more real and natural, and at the same time optimizes the space layout, facilitating installation and maintenance.

[0016] From the above technical scheme can be seen, the beneficial effects of the present application are: through the spring telescopic sleeve rod and the belt displacement conversion module abuts to realize the initial inclination angle stability of the belt displacement conversion stand roll, when the conveying belt is offset, the belt displacement conversion module is pulled by the belt displacement conversion stand roll, and the specific offset is recorded, which overcomes the limitation that the traditional switch can only judge through the output on-off signal. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and all other drawings obtained by those skilled in the art without creative labor are within the scope of protection of the present patent.

[0018] Figure 1 The structural schematic diagram of the specific embodiment of the present application.

[0019] Figure 2 The structural schematic diagram of the spring telescopic sleeve rod of the specific embodiment of the present application.

[0020] Figure 3 The structural schematic diagram of the sliding block adjusting assembly of the specific embodiment of the present application.

[0021] Figure 4 The structural schematic diagram of the friction generator of the specific embodiment of the present application.

[0022] In the drawings: 1, conveyor frame; 101, conveying belt; 2, support frame; 201, fixed seat; 202, reinforcing rib; 3, belt displacement conversion stand roll; 301, indicating push rod; 4, spring telescopic sleeve rod; 401, top pressure contact; 5, belt displacement conversion module; 6, displacement sensor; 7, sliding block adjusting assembly; 701, sliding plate; 702, sliding groove; 703, sliding block; 704, locking bolt; 8, friction generator; 801, friction wheel; 802, rubber ring; 803, auxiliary wheel; 804, indicating lamp. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical solutions in the present application will be described clearly and completely in the following description combined with the drawings in the specific embodiment. Obviously, the following described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present patent, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present patent.

[0024] As Figures 1-4The application discloses a kind of indicating device for measuring belt deviation displacement analog quantity, including conveyor frame 1, the conveyor frame 1 is equipped with conveying belt 101, the conveying belt 101 both sides are evenly distributed along the length direction of conveying belt 101 with support frame 2, the lower end of support frame 2 is installed on the conveyor frame 1, and the upper end of support frame 2 is hinged with belt displacement conversion vertical roller 3, the swinging direction of belt displacement conversion vertical roller 3 is perpendicular to the conveying direction of conveying belt 101, and the inner side of the swinging direction of belt displacement conversion vertical roller 3 is connected with belt displacement conversion module 5 installed on support frame 2, and the outer side of the swinging direction of belt displacement conversion vertical roller 3 is abutted with spring telescopic sleeve rod 4 installed on support frame 2.

[0025] The support frame 2 top is further provided with displacement sensor 6 that can be linked with indicating push rod 301.Displacement sensor 6 is directly linked with indicating push rod 301, can convert the mechanical displacement of belt deviation into standard analog electrical signal in real time and continuously, realizes the accurate quantitative monitoring of deviation size and trend, provides continuous data for host computer system, thereby supporting setting graded alarm and tripping threshold, and realizes accurate control.

[0026] The initial inclination angle of belt displacement conversion vertical roller 3 is stabilized by the abutment of spring telescopic sleeve rod 4 and belt displacement conversion module 5, when conveying belt 101 deviates, belt displacement conversion module 5 is pulled by belt displacement conversion vertical roller 3, and the specific deviation is recorded, which overcomes the limitation that traditional switch can only judge through output on-off signal.

[0027] The signal of displacement sensor 6 is transmitted to host computer through DCS system, realizes continuous acquisition of belt deviation, analog quantity display, and running personnel can view belt deviation in real time, and can view belt deviation through deviation trend chart, can set belt deviation alarm value and tripping value according to actual situation, and realizes accurate control of belt deviation.

[0028] The telescopic end of spring telescopic sleeve rod 4 is connected with top pressure contact piece 401 for increasing the contact area of belt displacement conversion vertical roller 3.The top pressure contact piece 401 expands the force contact surface of belt displacement conversion vertical roller 3, so that the reset force of spring is more uniform and stable, reduces local wear and tear and jam risk, and ensures that belt displacement conversion vertical roller 3 can be stably and accurately returned to initial zero position when belt does not deviate.

[0029] The top pressure contact piece 401 is arc-shaped structure.

[0030] The top of the support frame 2 is further provided with a friction generator 8, the friction generator 8 is provided with a friction wheel 801 and an auxiliary wheel 803, the friction wheel 801 and the auxiliary wheel 803 are in abutment with the belt displacement conversion vertical roller 3; one side of the friction wheel 801 is further provided with an indicating lamp 804, the indicating lamp 804 can be turned on after the mechanical energy is converted into electrical energy by the friction wheel 801. The rotating mechanical energy of the belt displacement conversion vertical roller 3 is converted into electrical energy by the friction wheel 801, the indicating lamp 804 is driven to light up, a completely mechanical, external power-free on-site visual alarm mode is provided, the reliability in an extreme electrical environment or as an auxiliary alarm is enhanced, and self-powered indication is realized.

[0031] The friction generator 8 is elastically connected to the support frame 2, and the swing amplitude of the friction generator 8 is smaller than the swing amplitude of the belt displacement conversion vertical roller 3. In the initial state, the friction wheel 801 and the belt displacement conversion vertical roller 3 have a certain spacing, when the belt displacement conversion vertical roller 3 is pushed by the offset of the conveying belt 101, the belt displacement conversion vertical roller 3 is in abutment with the friction wheel 801, with the deepening of the contact, the brightness of the indicating lamp 804 gradually reaches a peak value, an intuitive prompt is formed for the operator, the position can be quickly and clearly determined on site and intervention adjustment can be performed.

[0032] The outside of the friction wheel 801 is provided with a rubber ring 802. The rubber ring 802 increases the friction coefficient, improves the energy conversion efficiency, and also plays a buffering and noise reduction role, reduces the hard impact and wear of the belt displacement conversion vertical roller 3, and prolongs the service life of the related components.

[0033] The support frame 2 is further provided with a sliding block adjusting assembly 7, the sliding block adjusting assembly 7 can limit the angle of the belt displacement conversion vertical roller 3 tilting to one side of the conveying belt 101. The sliding block adjusting assembly 7 allows the initial zero point of the belt displacement conversion vertical roller 3 to be accurately set and finely adjusted, taking the system output as the zero point reference, the initial calibration accuracy and adaptability of the measurement system are improved, which can adapt to different installation conditions and initial states of the conveying belt 101.

[0034] The sliding block adjusting assembly 7 includes a sliding plate 701, the sliding plate 701 is provided with a sliding groove 702, the length direction of the sliding groove 702 is in the same vertical plane as the swing direction of the belt displacement conversion vertical roller 3, and the belt displacement conversion vertical roller 3 passes through the sliding groove 702, the sliding groove 702 is further provided with a sliding block 703 located on the inner side of the swing direction of the belt displacement conversion vertical roller 3 and in abutment with the belt displacement conversion vertical roller 3. The cooperation structure of the sliding groove 702 and the sliding block 703 is simple and reliable, which provides a clear mechanical limit and adjustment track for the swing of the belt displacement conversion vertical roller 3, so that the adjustment action is intuitive and linear, and the on-site personnel can accurately set the initial position.

[0035] The sliding block 703 adjusts the fixed position of the sliding block 703 in the sliding groove 702 through the locking bolt 704. Considering the harsh conditions of the site environment, the locking bolt 704 is used for fixing, which is convenient to adjust and reliable to fasten, can effectively prevent the sliding block 703 from being accidentally displaced during the vibration process of the equipment operation, and ensures the long-term stability of the zero point calibration.

[0036] Wherein, the bottom of the belt displacement conversion vertical roller 3 is installed on the top of the support frame 2 through the indicating push rod 301, and the indicating push rod 301 is in contact with the spring telescopic sleeve rod 4, the belt displacement conversion module 5 and the sliding block adjusting assembly 7 respectively. The indicating push rod 301 serves as a supporting component for the rotation of the belt displacement conversion vertical roller 3, which avoids the abrasion of the belt displacement conversion vertical roller 3 and the adjacent contact components caused by the high-speed rotation of the belt displacement conversion vertical roller 3 after contacting the conveying belt 101.

[0037] The support frames 2 on both sides of the conveying belt 101 are arranged in a staggered manner. The staggered arrangement avoids the concentration of the support frames 2 and the detection devices thereon in the transverse direction of the belt, reduces the additional resistance or interference that may be generated by the transverse movement of the belt, makes the measurement more natural and real, and optimizes the spatial layout, facilitating installation and maintenance.

[0038] The bottom end of the support frame 2 is installed on the conveyor frame 1 through the fixing seat 201, and the inner side of the support frame 2 close to the conveying belt 101 is also provided with an inclined reinforcing rib 202, one end of the reinforcing rib 202 is connected with the support frame 2, and the other end of the reinforcing rib 202 is connected with the fixing seat 201.

[0039] Wherein, considering the need for timely and flexible adjustment after the installation of the device on the conveyor frame 1, the support frame 2 and the fixing seat 201 can be connected in a hinged manner, and the reinforcing rib 202 can be set as an adjustable telescopic rod. By adjusting the length of the telescopic rod, the inclination angle between the support frame 2 and the fixing seat 201 can be adjusted to realize a suitable layout state of the belt displacement conversion vertical roller 3 and the conveying belt 101.

[0040] The working principle of the device is as follows: the device is installed on both sides of the belt, and the core detection component, the belt displacement conversion vertical roller 3, is in initial contact with the edge of the conveying belt 101 under the action of the spring telescopic sleeve rod 4, and the system is in zero state at this time. When the belt runs, the belt edge pushes the belt displacement conversion vertical roller 3 to swing. The swing of the belt displacement conversion vertical roller 3 is transmitted through the indicating push rod 301 connected thereto, which compresses or stretches the spring telescopic sleeve rod 4 to provide a reset force, and synchronously and accurately transmits the displacement to the displacement sensor 6. The displacement sensor 6 converts the mechanical displacement into continuous analog electrical signals (such as 4-20 mA or 0-10 V) in real time and transmits them to the upper computer (DCS system) in the control room. The operator can monitor the specific value and change trend of the belt deviation in real time, and can preset the alarm and trip threshold to realize accurate early warning and automatic control. When the conveying belt 101 returns to the normal state, the reset force of the spring drives the vertical roller and the entire transmission mechanism to accurately return to the initial zero position, preparing for the next detection. In addition, through the optional self-powered indicator light 804 module, the swing of the vertical roller can drive the friction wheel 801 to rotate and generate electricity, directly lighting the on-site indicator light 804, providing intuitive auxiliary alarm and realizing rapid positioning.

[0041] From the above technical solutions, the beneficial effects of the present application are: the initial inclination angle of the belt displacement conversion vertical roller is stabilized by the spring telescopic sleeve rod and the belt displacement conversion module, and when the conveying belt deviates, the belt displacement conversion module is pulled by the belt displacement conversion vertical roller, and the specific deviation is recorded, overcoming the limitation that the traditional switch can only judge through the output on-off signal.

[0042] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An indicating device for measuring the analog quantity of belt deviation displacement, comprising a conveyor frame (1), wherein a conveyor belt (101) is arranged on the conveyor frame (1), characterized in that, Both sides of the conveying belt (101) are provided with support frames (2), the lower end of the support frame (2) is installed on the conveyor frame (1), the upper end of the support frame (2) is hinged with a belt displacement conversion vertical roller (3), the swinging direction of the belt displacement conversion vertical roller (3) is perpendicular to the conveying direction of the conveying belt (101), the inner side of the swinging direction of the belt displacement conversion vertical roller (3) is connected with a belt displacement conversion module (5) installed on the support frame (2), and the outer side of the swinging direction of the belt displacement conversion vertical roller (3) abuts against a spring telescopic sleeve rod (4) installed on the support frame (2).

2. The device for measuring the displacement of the belt deviation according to claim 1, characterized in that, The support frame (2) is further provided with a sliding block adjusting assembly (7), which can limit the angle of the belt displacement conversion vertical roller (3) tilting to one side of the conveying belt (101).

3. The device for measuring the displacement of the belt deviation according to claim 2, characterized in that, The sliding block adjusting assembly (7) comprises a sliding plate (701), a sliding groove (702) is formed in the sliding plate (701), the length direction of the sliding groove (702) is in the same vertical plane as the swinging direction of the belt displacement conversion vertical roller (3), and the belt displacement conversion vertical roller (3) passes through the sliding groove (702), and the sliding groove (702) is further provided with a sliding block (703) located on the inner side of the swinging direction of the belt displacement conversion vertical roller (3) and abutting against the belt displacement conversion vertical roller (3).

4. The device for measuring the displacement of the belt deviation according to claim 3, characterized in that, The sliding block (703) adjusts the fixed position of the sliding block (703) in the sliding groove (702) through a locking bolt (704).

5. The device for measuring the displacement of the belt deviation according to any one of claims 1 to 4, characterized in that, The telescopic end of the spring telescopic sleeve rod (4) is connected with a top pressure contact piece (401) for increasing the contact area with the belt displacement conversion vertical roller (3).

6. The device for measuring the displacement of a belt deviation according to any one of claims 1 to 4, characterized in that, The bottom of the belt displacement conversion vertical roller (3) is rotatably installed on the top of the support frame (2) through an indicating push rod (301), and the indicating push rod (301) respectively contacts the spring telescopic sleeve rod (4), the belt displacement conversion module (5) and the sliding block adjusting assembly (7).

7. The device of claim 6, wherein the device is configured to measure the displacement of the belt from the centerline of the conveyor. The top of the support frame (2) is further provided with a displacement sensor (6) capable of being linked with the indicating push rod (301).

8. The device of any one of claims 1 to 4, wherein the device is a device for measuring a displacement of a belt deviation. The top of the support frame (2) is further provided with a friction generator (8), the friction generator (8) is provided with a friction wheel (801) and an auxiliary wheel (803), the friction wheel (801) and the auxiliary wheel (803) abut against the belt displacement conversion vertical roller (3); one side of the friction wheel (801) is further provided with an indicating lamp (804), the indicating lamp (804) can be rotated by the friction wheel (801) to convert mechanical energy into electrical energy and then light up.

9. The device of claim 8, wherein the device is configured to measure the displacement of the belt from the centerline of the conveyor. The outside of the friction wheel (801) is provided with a rubber ring (802).

10. The device of any one of claims 1 to 4, wherein the device is a device for measuring a displacement of a belt deviation. The support frames (2) on both sides of the conveying belt (101) are staggered.

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