CN214297786U - Tension detection adjusting device for belt conveyor - Google Patents
Tension detection adjusting device for belt conveyor Download PDFInfo
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- CN214297786U CN214297786U CN202023090189.8U CN202023090189U CN214297786U CN 214297786 U CN214297786 U CN 214297786U CN 202023090189 U CN202023090189 U CN 202023090189U CN 214297786 U CN214297786 U CN 214297786U
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Abstract
The utility model belongs to the technical field of belt conveyors, in particular to a tension detection and adjustment device for a belt conveyor, which comprises a conveyor belt and a tail frame, wherein one end of the tail frame is provided with a tail transmission roller, the other end is provided with a turnabout roller, a tension detection device is arranged between the tail transmission roller and the turnabout roller, and the tension detection device comprises a tension sensor; the tension sensor transmits a tension signal of the conveying belt to the controller, and the controller combines data transmitted by the encoder and the tension sensor to control the rotating speed of the transmission motor through the frequency converter, so that the speed and tension double-closed-loop control of the conveying belt is formed. The utility model forms double closed loop control of the speed and the tension of the conveyor belt; reduce the damage that the afterbody driving pulley and conveyer belt take place to skid and cause, improve its life.
Description
Technical Field
The utility model belongs to the technical field of belt conveyor, concretely relates to tension detects adjusting device for belt conveyor.
Background
The belt conveyor is a common transport machine in the mine industry and plays a key role in production and transportation of mines. The device has the advantages of simple structure, stable system, large transportation amount, simple operation and convenient maintenance, becomes an ideal electromechanical device for transportation of numerous industrial production flow lines and various mineral bulk materials, and plays an extremely important role in industrial production.
When the belt conveyor is used for conveying at a long conveying distance, slipping is easy to occur, and the service life of the roller and the rubber belt is shortened to a great extent due to the slipping.
In the prior art, most of the tension detection and adjustment devices measure the tension of the conveying belt through the tension sensor, and then adjust the tension of the conveying belt through the tension adjustment device, so as to achieve the purpose of preventing slipping.
However, the tensioning devices have a certain hysteresis in the adjustment, and in particular in long-distance transport, slippage still occurs during the time before the tensioning is brought to the desired effect, and damage is still caused to the shortened roller and the adhesive tape.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a tension detects adjusting device for belt conveyor.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a tension detection and adjustment device for a belt conveyor comprises a conveyor belt and a tail rack, wherein the tail rack is a rectangular frame rack, a tail transmission roller is installed at one end of the tail rack, a turnabout drum is installed at the other end of the tail rack, a tension detection device is installed between the tail transmission roller and the turnabout drum and comprises a tension detection roller, an installation frame and a tension sensor, the tension detection roller is installed on the installation frame, one side of the installation frame is hinged to the top of the tail rack, the other end of the installation frame is matched with the tension sensor, the tension sensor is installed at the top of the tail rack through a fixing seat, and the conveyor belt sequentially bypasses the turnabout drum, the tension detection roller and the tail transmission roller; the tension sensor transmits a tension signal of the conveying belt to the controller, and the controller combines data transmitted by the encoder and the tension sensor to control the rotating speed of the transmission motor through the frequency converter, so that the speed and tension double-closed-loop control of the conveying belt is formed.
Further, the controller is a PLC, the tail transmission roller is provided with a braking device, and the controller also controls the braking device. The braking device is matched with the frequency converter to reduce the rotating speed of the transmission motor.
Furthermore, a head-tail surface increasing roller is further mounted at one end of the turnabout drum of the tail machine frame, and the head-tail surface increasing roller is mounted below the turnabout drum; the conveyer belt sequentially bypasses the turnabout drum, the tension detection drum, the tail transmission drum and the head and tail surface increasing drums.
Furthermore, the head-tail surface increasing roller and the tail transmission roller are driven by the transmission motor, and the conveying belt is conveyed from the bottom of the tail transmission roller to the top of the head-tail surface increasing roller and inclines upwards. The contact area between the conveying belt and the tail transmission roller is increased through the head and tail surface increasing rollers, the friction force is enhanced, and the conveying of the conveying belt is facilitated; on the other hand, the position of the head-tail surface increasing roller is arranged, so that the conveying belt between the tail transmission roller and the head-tail surface increasing roller tends to be raised, and the contact area between the conveying belt and the lower part of the tail transmission roller is increased.
Further, the tension detection roller enables the conveying belt between the tail transmission roller and the direction-changing roller to be in a V shape. Therefore, the contact area between the conveying belt and the upper part of the tail transmission roller can be increased.
Description of the drawings: the tension sensor detects the tension of the conveying belt, the encoder judges the rotating speed of the transmission motor, and if the tension is too small, the controller controls the frequency converter to reduce the current so as to reduce the rotating speed of the transmission motor, thereby reducing the idle running of the tail transmission roller, reducing the ineffective friction between the tail transmission roller and the conveying belt, reducing the damage of the tail transmission roller and the conveying belt and prolonging the service life of the tail transmission roller; when the tension is gradually increased, the controller controls the motor to increase the rotating speed so as to enable the rotating speed to correspond to the tension; in this manner, a double closed loop control of conveyor belt speed and tension is created.
Has the advantages that: the utility model combines the data transmitted by the encoder and the tension sensor through the controller to control and adjust the rotating speed of the transmission motor through the frequency converter, thereby forming the double closed loop control of the speed and the tension of the conveyor belt; reduce the damage that the afterbody driving pulley and conveyer belt take place to skid and cause, improve its life.
Drawings
FIG. 1 is a schematic view of a part of a tension detecting and adjusting device for a belt conveyor;
FIG. 2 is a front view of the tail of the belt conveyor;
FIG. 3 is a schematic control diagram of a tension detecting and adjusting device for a belt conveyor;
in the figure, a tail transmission roller 1, a tail frame 2, a head and tail surface increasing roller 3, a tension detection device 4, a tension sensor 41, a brake device 5, a controller 6, a bend roller 7, an encoder 8, a transmission motor 9, a frequency converter 10 and a conveyer belt 11.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 to 3 show a tension detection adjusting device 4 for a belt conveyor, which includes a conveyor belt 11 and a tail frame 2, the tail frame 2 is a rectangular frame, a tail transmission roller 1 is installed at one end of the tail frame 2, a direction-changing roller 7 is installed at the other end of the tail frame 2, a tension detection device 4 is installed between the tail transmission roller 1 and the direction-changing roller 7, the tension detection device 4 includes a tension detection roller, an installation frame and a tension sensor 41, the tension detection roller is installed on the installation frame, one side of the installation frame is hinged to the top of the tail frame 2, the other end of the installation frame is matched with the tension sensor 41, the tension sensor 41 is installed at the top of the tail frame 2 through a fixing seat, and the conveyor belt 11 sequentially bypasses the direction-changing roller 7, the tension detection roller and the tail transmission roller 1; the device further comprises a controller 6, an encoder 8, a frequency converter 10 and a transmission motor 9, wherein the encoder 8 transmits a rotating speed signal of the transmission motor 9 to the controller 6, the tension sensor 41 transmits a tension signal of the conveying belt 11 to the controller 6, and the controller 6 combines data transmitted by the encoder 8 and the tension sensor 41 so as to control the rotating speed of the transmission motor 9 through the frequency converter 10, so that double closed-loop control of the speed and the tension of the conveying belt 11 is formed.
The controller 6 is a PLC, the tail transmission roller 1 is provided with a braking device 5, and the controller 6 also controls the braking device 5. The braking device 5 is matched with the frequency converter 10 to reduce the rotating speed of the transmission motor 9.
The tail frame 2 is also provided with a head-tail surface increasing roller 3 at one end of a turnabout drum 7, and the head-tail surface increasing roller 3 is arranged below the turnabout drum 7; the conveyer belt 11 sequentially bypasses the bend pulley 7, the tension detection pulley, the tail transmission pulley 1 and the head and tail surface increasing pulley 3.
The head-tail surface increasing roller 3 and the tail transmission roller 1 are both driven by the transmission motor 9, and the conveying belt 11 is conveyed from the bottom of the tail transmission roller 1 to the top of the head-tail surface increasing roller 3 and inclines upwards. The contact area between the conveyer belt 11 and the tail transmission roller 1 is increased through the head and tail surface increasing rollers 3, the friction force is enhanced, and the conveying of the conveyer belt 11 is facilitated; on the other hand, the position of the head-tail surface increasing roller 3 is arranged, so that the conveying belt 11 between the tail transmission roller 1 and the head-tail surface increasing roller 3 tends to be raised, and thus, the contact area between the conveying belt 11 and the lower part of the tail transmission roller is increased.
The tension detection roller makes the conveyer belt 11 between the tail transmission roller 1 and the bend roller 7 in a V shape. Thus, the contact area between the conveyor belt 11 and the upper part of the tail transmission roller 1 can be increased.
Description of the drawings: the tension sensor 41 detects the tension of the conveying belt 11, the encoder 8 judges the rotating speed of the transmission motor 9, if the tension is too small, and the condition that the conveying belt 11 slips is achieved, the controller 6 controls the frequency converter 10 to reduce the current, so that the rotating speed of the transmission motor 9 is reduced, the idle running of the tail transmission roller 1 is reduced, the ineffective friction between the tail transmission roller and the conveying belt 11 is reduced, the damage to the tail transmission roller and the conveying belt is reduced, and the service life of the tail transmission roller and the conveying belt is prolonged; when the tension is gradually increased, the controller 6 controls the motor to increase the rotating speed to enable the rotating speed to correspond to the tension; in this manner, a double closed loop control of the speed and tension of the conveyor belt 11 is formed. The embodiment can also assist the tension adjusting device in the prior art, and the tail driving force is controlled by controlling the transmission motor 9, so that the tail driving force is ensured to be approximately equal to the running resistance of the return conveyer belt. Real-time detection ensures that the tail transmission roller 1 does not slip during any operation.
To sum up, the utility model discloses obvious beneficial effect: the utility model combines the data transmitted by the encoder 8 and the tension sensor 41 through the controller 6 to control and adjust the rotating speed of the transmission motor 9 through the frequency converter 10, thereby forming the double closed loop control of the speed and the tension of the conveyer belt 11; reduce the damage that the afterbody driving pulley 1 and conveyer belt 11 take place to skid and cause, improve its life.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. A tension detection and adjustment device for a belt conveyor comprises a conveyor belt and a tail frame, and is characterized in that the tail frame is a rectangular frame, a tail transmission roller is installed at one end of the tail frame, a direction-changing roller is installed at the other end of the tail frame, a tension detection device is installed between the tail transmission roller and the direction-changing roller and comprises a tension detection roller, an installation frame and a tension sensor, the tension detection roller is installed on the installation frame, one side of the installation frame is hinged to the top of the tail frame, the other end of the installation frame is matched with the tension sensor, the tension sensor is installed at the top of the tail frame through a fixing seat, and the conveyor belt sequentially bypasses the direction-changing roller, the tension detection roller and the tail transmission roller; the tension sensor transmits a tension signal of the conveying belt to the controller, and the controller combines data transmitted by the encoder and the tension sensor to control the rotating speed of the transmission motor through the frequency converter, so that the speed and tension double-closed-loop control of the conveying belt is formed.
2. The tension sensing adjustment device for a belt conveyor according to claim 1, wherein the controller is a PLC, the tail drum is provided with a brake device, and the controller further controls the brake device.
3. The tension detecting and adjusting device for the belt conveyor according to claim 1, wherein the tail frame is further provided with a head-tail surface increasing roller at one end of the direction-changing roller, and the head-tail surface increasing roller is arranged below the direction-changing roller; the conveyer belt sequentially bypasses the turnabout drum, the tension detection drum, the tail transmission drum and the head and tail surface increasing drums.
4. The tension detecting and adjusting device for a belt conveyor according to claim 3, wherein the head-tail surface-added roller and the tail transmission roller are both driven by the transmission motor, and the conveyor belt is conveyed from the bottom of the tail transmission roller to the top of the head-tail surface-added roller and is inclined upward.
5. The tension sensing adjustment device for a belt conveyor of claim 1, wherein the tension sensing rollers cause the belt between the tail drive roller and the direction-changing rollers to be V-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023090189.8U CN214297786U (en) | 2020-12-21 | 2020-12-21 | Tension detection adjusting device for belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023090189.8U CN214297786U (en) | 2020-12-21 | 2020-12-21 | Tension detection adjusting device for belt conveyor |
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| Publication Number | Publication Date |
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| CN214297786U true CN214297786U (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023090189.8U Active CN214297786U (en) | 2020-12-21 | 2020-12-21 | Tension detection adjusting device for belt conveyor |
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| CN (1) | CN214297786U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114194724A (en) * | 2021-11-03 | 2022-03-18 | 淮北矿业股份有限公司 | Spiral tensioning device at tail part of adhesive tape machine |
| CN115027907A (en) * | 2022-04-13 | 2022-09-09 | 武汉科技大学 | Conveying belt tension cooperative self-adaptive adjusting method based on PID control |
-
2020
- 2020-12-21 CN CN202023090189.8U patent/CN214297786U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114194724A (en) * | 2021-11-03 | 2022-03-18 | 淮北矿业股份有限公司 | Spiral tensioning device at tail part of adhesive tape machine |
| CN115027907A (en) * | 2022-04-13 | 2022-09-09 | 武汉科技大学 | Conveying belt tension cooperative self-adaptive adjusting method based on PID control |
| CN115027907B (en) * | 2022-04-13 | 2024-02-09 | 武汉科技大学 | PID control-based cooperative self-adaptive adjustment method for tension of conveyor belt |
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