CN211337705U - Power frequency transmission adhesive tape running and slipping detection device - Google Patents
Power frequency transmission adhesive tape running and slipping detection device Download PDFInfo
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- CN211337705U CN211337705U CN201922457924.5U CN201922457924U CN211337705U CN 211337705 U CN211337705 U CN 211337705U CN 201922457924 U CN201922457924 U CN 201922457924U CN 211337705 U CN211337705 U CN 211337705U
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Abstract
The invention aims to solve the problems of the existing running and slipping detection device, and provides a power frequency transmission adhesive tape running and slipping detection device and a detection method, so as to solve the problem of inaccurate detection in the prior art. The device comprises stationary mast, taut spring, digging arm, transmission shaft, passive friction pulley and atmospheric pressure formula detecting element, stationary mast fixed connection is in the sealing-tape machine frame, and the stationary mast middle part is articulated with the one end of digging arm, taut spring's one end is fixed in stationary mast lower part, the other end and is fixed in the digging arm middle part, the other end at the digging arm is connected through the transmission shaft to passive friction pulley and the internal surface friction contact of sticky tape, vapour-pressure type detecting element fixed connection is on the digging arm to with the one end fixed connection of transmission shaft.
Description
Technical Field
The utility model belongs to the technical field of industry sealing-tape machine sticky tape operation detects, specifically, relate to a power frequency transmission sticky tape operation and detection device that skids.
Background
Along with the continuous improvement of the industrial automation level, the application of the belt conveyor is more and more extensive, and the operation detection requirement of the belt conveyor is higher and higher, particularly in the field before metallurgical iron, the material transportation is almost completed by adopting the belt conveyor, and almost every belt conveyor is provided with an operation and slippage detection device for ensuring the operation reliability of the belt conveyor. However, the existing technology for detecting the operation or the slip of the belt conveyor has a series of problems in terms of accuracy, application range and the like, for example, the rotation speed of the transmission motor of the belt conveyor is commonly used as the operation speed of the belt conveyor, or the rotation speed of the head roller or the tail roller of the belt conveyor is used as the operation speed of the belt conveyor, and the detected speed does not represent the speed of the belt conveyor, because the friction transmission is adopted between the driving roller of the belt conveyor and the belt, there is a possibility of slip, that is: the operation of the driving roller of the adhesive tape machine does not represent that the adhesive tape can operate certainly; the operation of the driven roller is detected to judge whether the belt conveyor operates or not, and the operation is inaccurate, because the driven roller rotates by the friction of the belt conveyor against the driven roller, the driven roller has the possibility of slipping, and therefore the operation of the belt conveyor is judged by detecting the rotating speed of the driven roller is not accurate enough.
Therefore, further research on the power frequency transmission adhesive tape speed detection device is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a power frequency transmission sticky tape operation and the detection dress that skids to the problem that current operation and detection device exist to solve prior art and detect unsafe problem.
The technical scheme of the utility model is, a power frequency transmission sticky tape operation and detection device that skids comprises stationary mast, straining spring, digging arm, transmission shaft, passive friction pulley and atmospheric pressure formula detecting element, stationary mast fixed connection is in the sealing-tape machine frame, and stationary mast middle part is articulated with the one end of digging arm, straining spring's one end is fixed in stationary mast lower part, the other end is fixed in the middle part of digging arm, passive friction pulley passes through the transmission shaft and connects at the other end of digging arm to passive friction pulley and sticky tape internal surface friction contact, the atmospheric pressure formula detecting element fixed connection is on the digging arm to one end fixed connection with the transmission shaft;
the pneumatic detection unit consists of a cylinder shell, a large gear, a small gear, a blower, a reducing hose, a detection unit and a support frame, wherein the large gear, the small gear, the blower, the reducing hose, the detection unit and the support frame are arranged in the cylinder shell; one bottom surface of the cylinder shell is fixedly connected to the movable arm, the transmission shaft penetrates through the bottom surface, and an air pressure balance hole and a sealed wire inlet hole are formed in the side wall of the cylinder shell; the air blower is fixedly connected to the bottom surface of the cylindrical shell through a support frame, the large gear is fixedly connected with the transmission shaft, the small gear is meshed with the large gear, a driving shaft of the air blower is fixedly connected with a central shaft of the small gear, an air outlet of the air blower is connected with an air inlet end of the reducing hose, and an air outlet end of the reducing hose is connected with the detection unit;
the detection unit consists of an air inlet pipe, a pressure bearing cylinder, a pressure bearing sliding plate, a pressure bearing return spring, a linear displacement sensor and a signal wire; an air inlet pipe connected with the air outlet end of the reducing hose is arranged on the bottom surface a on one side of the pressure-bearing cylinder, a linear displacement sensor is arranged on the bottom surface b on the other side of the pressure-bearing cylinder, two rings of limiting rings are arranged on the side wall in the pressure-bearing cylinder, and an exhaust hole is arranged on the side wall between the two rings of limiting rings and close to the bottom surface b; the pressure-bearing sliding plate is sleeved inside the pressure-bearing cylinder and slides between the two rings of limiting rings, a sealing ring is arranged on the outer side of the pressure-bearing sliding plate, a connecting rod is horizontally arranged on the pressure-bearing sliding plate, one end of a pressure-bearing reset spring is fixedly connected to the center of the pressure-bearing sliding plate, the other end of the pressure-bearing reset spring is fixedly connected to the center of the bottom surface b, a pull rod of the linear displacement sensor is fixedly connected with the connecting rod, and one end of a signal wire is connected with the linear displacement sensor, and the other end.
Further, in the detection device, a spring cushion is arranged between the support frame and the blower;
further, in the detection device, the exhaust hole on the side wall of the pressure-bearing cylinder is arranged between the position of the pressure-bearing return spring at the shortest compression distance and the limiting ring close to the bottom surface b;
further, in the detection device, the detection unit is connected with the upper computer through a signal line.
Compared with the prior art, the utility model has the advantages that:
1. the detection system of the utility model directly measures the adhesive tape, and avoids the influence of slipping between the roller and the adhesive tape on the detection, so the operation signal of the adhesive tape measured by the utility model is real and reliable;
2. the utility model can adjust the slip set value according to the need, and has higher flexibility;
3. the utility model discloses each part is mechanical connection among the device, reliable, stable, longe-lived.
Drawings
FIG. 1 is a schematic view of the installation position of the device of the present invention;
FIG. 2 is a schematic view of the structure of the device of the present invention;
FIG. 3 is a schematic view of the structure of the pneumatic detecting unit in the device of the present invention;
FIG. 4 is a schematic view of the structure of the detecting unit in the device of the present invention;
the device comprises a fixed upright post, a tension spring, a movable arm, a transmission shaft, a driven friction wheel, a pneumatic detection unit, a belt conveyor rack and a belt conveyor, wherein the fixed upright post is 1, the tension spring is 2, the movable arm is 3, the transmission shaft is 4, the driven friction wheel is 5, the driven friction wheel is 6, the;
61. the device comprises a cylinder shell, 62, a gearwheel, 63, a pinion, 64, a blower, 65, a reducing hose, 66, a detection unit, 67, a support frame, 68 and a spring pad;
611. the device comprises an air pressure balance hole, 612, a sealing wire inlet hole, 661, an air inlet pipe, 662, a pressure-bearing cylinder, 663, a pressure-bearing sliding plate, 664, a pressure-bearing reset spring, 665, a linear displacement sensor, 666 and a signal wire;
6621. bottom surface a, 6622, exhaust hole, 6623, bottom surface b, 6624, spacing ring, 6631, sealing ring, 6632, connecting rod, 6651, pull rod.
Detailed Description
Example 1
A power frequency transmission rubber belt running and slipping detection device comprises a fixed upright post 1, a tensioning spring 2, a movable arm 3, a transmission shaft 4, a driven friction wheel 5 and an air pressure type detection unit 6, wherein the fixed upright post 1 is fixedly connected to a rubber belt machine frame 7, the middle part of the fixed upright post 1 is hinged to one end of the movable arm 3, one end of the tensioning spring 2 is fixed to the lower part 1 of the fixed upright post, the other end of the tensioning spring is fixed to the middle part of the movable arm 3, the driven friction wheel 5 is connected to the other end of the movable arm 3 through the transmission shaft 4, the driven friction wheel 5 is in friction contact with the inner surface of a rubber belt, and the air pressure type detection unit 6 is fixedly connected to the movable arm 3 and is;
the pneumatic detection unit 6 consists of a cylindrical shell 61, a large gear 62, a small gear 63, a blower 64, a reducing hose 65, a detection unit 66, a support frame 67 and a spring pad 68 which are arranged in the cylindrical shell; one bottom surface of the cylindrical shell 61 is fixedly connected to the movable arm 3, the transmission shaft 4 penetrates through the bottom surface, and the side wall of the cylindrical shell 61 is provided with an air pressure balance hole 611 and a sealing wire inlet hole 612; the blower 64 is fixedly connected to the bottom surface of the cylindrical shell 61 through a support frame 67, a spring pad 68 is further arranged between the support frame 67 and the blower 64, the large gear 62 is fixedly connected with the transmission shaft 4, the small gear 63 is meshed with the large gear 62, a drive shaft of the blower 64 is fixedly connected with a central shaft of the small gear 63, an air outlet of the blower 64 is connected with an air inlet end of the reducing hose 65, and an air outlet end of the reducing hose 65 is connected with the detection unit 66;
the detection unit 66 consists of an air inlet pipe 661, a pressure-bearing cylinder 662, a pressure-bearing sliding plate 663, a pressure-bearing return spring 664, a linear displacement sensor 665 and a signal line 666; an air inlet pipe 661 connected with the air outlet end of the reducing hose 65 is arranged on the bottom surface a6621 on one side of the pressure-bearing cylinder 662, a linear displacement sensor 665 is arranged on the bottom surface b6623 on the other side, two rings of limiting rings 6624 are arranged on the side wall inside the pressure-bearing cylinder, and an exhaust hole 6622 between the position of the pressure-bearing return spring when the pressure-bearing return spring is in the shortest compression distance and the limiting ring close to the bottom surface b is arranged on the side wall of the pressure-bearing cylinder; pressure-bearing sliding plate 663 suit is inside pressure-bearing cylinder 662, slides between two rings of spacing rings, and the outside of pressure-bearing sliding plate is equipped with sealing ring 6631, be equipped with horizontally placed connecting rod 6632 on the pressure-bearing sliding plate 663, pressure-bearing reset spring 664 one end fixed connection is in the center of pressure-bearing sliding plate 663, other end fixed connection is in the center of bottom surface b6623, linear displacement sensor 665 pull rod 6651 with connecting rod 6632 fixed connection, signal line 666 signal line one end is connected the other end with linear displacement sensor 665 and leads to outside and host computer connection through sealed entrance hole 612.
Example 2
A power frequency transmission adhesive tape running speed detection method adopts the detection device of the embodiment 1, and the specific method is as follows:
1) opening the adhesive tape machine and opening the detection device;
2) the upper computer receives and records the current transmitted by the linear displacement sensor, and calculates the actual running speed of the adhesive tape machine according to a formula (6);
the calculation principle is as follows:
under the action of the tensioning spring, the movable arm drives the driven friction wheel to fully contact the adhesive tape for friction transmission, and the phenomenon that the driven friction wheel loses rotation due to the vibration of the adhesive tape in the movement process of the adhesive tape is avoided because the tensioning spring is always in a tensioned state; the driven friction wheel drives the transmission shaft to rotate, the transmission shaft drives the large gear to rotate, the large gear drives the small gear to rotate, the small gear drives the main shaft of the blower to rotate, gas under pressure generated by the blower enters the pressure-bearing cylinder through the reducing hose, the gas pushes the pressure-bearing sliding plate to compress the pressure-bearing reset spring under the action of pressure, the pull rod driving the linear displacement sensor slides along the inner wall of the pressure-bearing cylinder to the bottom surface b direction, and the linear displacement sensor outputs currents with different intensities according to displacement distances;
the adhesive tape is closely contacted with the driven friction wheel, friction transmission is carried out, and the running speed S of the adhesive tapeGlueLinear velocity S of contact point of same friction wheel and adhesive tapeThreadEqual according to the radius R of the driven friction wheelMassage deviceAnd a rotational speed NMassage deviceThe actual running speed S of the adhesive tape can be calculatedGlueNamely:
Sglue＝SThread＝2πRMassage deviceNMassage device(1)
The driven friction wheel is fixedly connected with the transmission shaft, and the transmission shaft is fixedly connected with the large gear, so that the rotating speed N of the large gearBig (a)And NMassage deviceThe linear velocities of the contact points of the big gear and the small gear are equal because the big gear is meshed with the small gear, and the contact points have the following values:
2πRbig (a)NBig (a)＝2πRSmallNSmall(2)
From formula (1) and formula (2), and NMassage device＝NBig (a)The following can be obtained:
Nsmall＝RBig (a)SGlue/2πRSmallRMassage device(3)
The pinion is coaxially connected with the driving shaft of the blower, so that the rotating speed N of the blower is equal to that of the pinion; according to the fan proportional law P/P0＝(N/N0)2It can be found that:
Pfruit of Chinese wolfberry＝P0(NSmall/N0)2(4)
In the formula: p0The blower pressure (Pa) corresponds to the maximum actual running speed of the adhesive tape machine; n is a radical of0The rotating speed of the pinion corresponding to the maximum actual running speed of the adhesive tape machine is set; pFruit of Chinese wolfberryFor the actual running speed S of the adhesive tapeGlueA corresponding blower pressure (Pa);
because the pressure of the air outlet gas of the blower on the pressure-bearing sliding plate is in direct proportion to the pressure of the blower, the contraction length of the pressure-bearing return spring is in direct proportion to the elasticity, and the air outlet pressure of the blower and the elasticity of the pressure-bearing return spring on the pressure-bearing sliding plate can reach balance; since the tape is run at power frequency, SGlue＝S0When the air outlet pressure of the air blower and the pressure-bearing reset spring reach balance, the linear displacement sensor can measure the maximum displacement distance of the pressure-bearing sliding plate, and the linear displacement sensor outputs a maximum current signal I0When the adhesive tape stops running, the air pressure at the outlet of the air blower disappears, the pressure-bearing reset spring resets, the linear displacement sensor can measure the minimum displacement distance of the pressure-bearing sliding plate, and the linear displacement sensor outputs a minimum current signal IIs low inBecause the displacement distance of the pressure-bearing sliding plate measured by the linear displacement sensor, namely the pressure change of the blower, is in linear relation with the output current intensity, the corresponding output IIs low in～I0(mA) signal, the relationship between the pressure change of the blower and the current intensity is as follows:
(Pfruit of Chinese wolfberry-0)/(P0-0)＝(IFruit of Chinese wolfberry-IIs low in)/(I0-IIs low in) (5)
In the formula IFruit of Chinese wolfberryThe current measured when the adhesive tape of the adhesive tape machine is actually operated, I0The current corresponding to the maximum actual running speed of the adhesive tape machine IIs low inThe current is corresponding to the current when the adhesive tape of the adhesive tape machine does not run;
substituting the formulas (3) and (4), the measured current is IFruit of Chinese wolfberryS corresponding to timeGlueComprises the following steps:
Sglue＝[S0(IFruit of Chinese wolfberry-IIs low in)/(I0-IIs low in)]0.5(6)
In the formula, S0The maximum actual running speed of the adhesive tape machine is represented by the following unit: m/s.
Example 3
A power frequency transmission adhesive tape running slip detection method adopts the detection device of the embodiment 1, and the specific method comprises the following steps:
1) the upper computer receives and records the current transmitted by the linear displacement sensor and receives the running signal of the motor of the belt conveyor;
2) the upper computer compares the current transmitted by the linear displacement sensor with the operation signal of the motor of the adhesive tape machine, the current value corresponding to the set slight slip speed of the adhesive tape and the current value corresponding to the set severe slip speed of the adhesive tape to judge whether to give an alarm or not;
the judging method comprises the following steps:
2.1) when the upper computer does not receive the running signal of the motor of the adhesive tape machine, the current transmitted by the linear displacement sensor is larger than IIs low inJudging a fault alarm;
2.2) when the upper computer receives the operation signal of the motor of the belt conveyor:
A. the current received and transmitted by the linear displacement sensor is equal to IIs low inJudging a fault alarm;
B. the current received and transmitted by the linear displacement sensor is larger than IIs low inThe method comprises the following steps:
a. judging whether the current is less than or equal to the current value corresponding to the serious slip of the adhesive tape;
b. the current is less than or equal to the current value corresponding to the slight slippage of the adhesive tape and is greater than the current value corresponding to the serious slippage of the adhesive tape, and the judgment of the slight slippage of the adhesive tape is made;
c. and (4) judging whether the adhesive tape runs normally when the current is larger than the current signal corresponding to slight slippage of the adhesive tape.
Examples of the applications
Running speed S of adhesive tape01250mm/s, the radius R of the large gearBig (a)Is 80mm, pinion radius RSmallThe rated rotation speed 2600r/min and the rated pressure 350Pa of the blower are 20 mm; the moving distance of the linear displacement sensor is 0-75 mm; the linear displacement sensor outputs 4-20 mA signals to an upper computer, and the judgment is carried out by combining the operation signals of the motor of the adhesive tape machine, the slight slip current value of the adhesive tape and the serious slip current value of the adhesive tape as follows:
1. the operation signal of the motor of the adhesive tape machine is not received, but a signal greater than 4mA is output, and a fault alarm is given;
2. receiving the running signal of the motor of the adhesive tape machine, and judging the function according to the output current value:
a. outputting a signal equal to 4mA, and giving a fault alarm;
b. outputting a signal less than or equal to 18mA indicating that the adhesive tape 1 is seriously slipped;
c. outputting a signal less than or equal to 18.5mA and greater than 18mA, indicating that the adhesive tape 1 slightly slips;
d. the output is greater than 18.5mA signal, which indicates that the adhesive tape 1 is normally operated.
Claims (4)
1. A power frequency transmission rubber belt running and slipping detection device is characterized by comprising a fixed upright post, a tensioning spring, a movable arm, a transmission shaft, a passive friction wheel and an air pressure type detection unit, wherein the fixed upright post is fixedly connected to a frame of a rubber belt machine, the middle part of the fixed upright post is hinged with one end of the movable arm, one end of the tensioning spring is fixed at the lower part of the fixed upright post, the other end of the tensioning spring is fixed at the middle part of the movable arm, the passive friction wheel is connected to the other end of the movable arm through the transmission shaft and in friction contact with the inner surface of a rubber belt, and the air pressure type detection unit is fixedly connected to the movable arm and is fixedly;
the pneumatic detection unit consists of a cylinder shell, a large gear, a small gear, a blower, a reducing hose, a detection unit and a support frame, wherein the large gear, the small gear, the blower, the reducing hose, the detection unit and the support frame are arranged in the cylinder shell; one bottom surface of the cylinder shell is fixedly connected to the movable arm, the transmission shaft penetrates through the bottom surface, and an air pressure balance hole and a sealed wire inlet hole are formed in the side wall of the cylinder shell; the air blower is fixedly connected to the bottom surface of the cylindrical shell through a support frame, the large gear is fixedly connected with the transmission shaft, the small gear is meshed with the large gear, a driving shaft of the air blower is fixedly connected with a central shaft of the small gear, an air outlet of the air blower is connected with an air inlet end of the reducing hose, and an air outlet end of the reducing hose is connected with the detection unit;
the detection unit consists of an air inlet pipe, a pressure bearing cylinder, a pressure bearing sliding plate, a pressure bearing return spring, a linear displacement sensor and a signal wire; an air inlet pipe connected with the air outlet end of the reducing hose is arranged on the bottom surface a on one side of the pressure-bearing cylinder, a linear displacement sensor is arranged on the bottom surface b on the other side of the pressure-bearing cylinder, two rings of limiting rings are arranged on the side wall in the pressure-bearing cylinder, and an exhaust hole is arranged on the side wall between the two rings of limiting rings and close to the bottom surface b; the pressure-bearing sliding plate is sleeved inside the pressure-bearing cylinder and slides between the two rings of limiting rings, a sealing ring is arranged on the outer side of the pressure-bearing sliding plate, a connecting rod is horizontally arranged on the pressure-bearing sliding plate, one end of a pressure-bearing reset spring is fixedly connected to the center of the pressure-bearing sliding plate, the other end of the pressure-bearing reset spring is fixedly connected to the center of the bottom surface b, a pull rod of the linear displacement sensor is fixedly connected with the connecting rod, and one end of a signal wire is connected with the linear displacement sensor, and the other end.
2. The power frequency transmission tape running and slipping detection device as claimed in claim 1, wherein a spring cushion is further provided between the support frame and the blower.
3. The power frequency transmission adhesive tape running and slipping detection device as claimed in claim 1, wherein the vent holes in the side wall of the pressure-bearing cylinder are arranged between the position where the pressure-bearing return spring is at the shortest compression distance and the limiting ring close to the bottom surface b.
4. The power frequency transmission belt running and slipping detection device as claimed in claim 1, wherein the detection unit is connected with an upper computer through a signal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922457924.5U CN211337705U (en) | 2019-12-31 | 2019-12-31 | Power frequency transmission adhesive tape running and slipping detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922457924.5U CN211337705U (en) | 2019-12-31 | 2019-12-31 | Power frequency transmission adhesive tape running and slipping detection device |
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| Publication Number | Publication Date |
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| CN211337705U true CN211337705U (en) | 2020-08-25 |
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| CN201922457924.5U Active CN211337705U (en) | 2019-12-31 | 2019-12-31 | Power frequency transmission adhesive tape running and slipping detection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111071735A (en) * | 2019-12-31 | 2020-04-28 | 中冶北方（大连）工程技术有限公司 | Power frequency transmission adhesive tape running and slipping detection device and detection method |
| CN113844859A (en) * | 2021-09-06 | 2021-12-28 | 呼伦贝尔安泰热电有限责任公司汇流河发电厂 | Mechanical belt slip detection device |
| CN111071735B (en) * | 2019-12-31 | 2024-05-10 | 中冶北方（大连）工程技术有限公司 | Device and method for detecting operation and slipping of power frequency transmission adhesive tape |
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2019
- 2019-12-31 CN CN201922457924.5U patent/CN211337705U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111071735A (en) * | 2019-12-31 | 2020-04-28 | 中冶北方（大连）工程技术有限公司 | Power frequency transmission adhesive tape running and slipping detection device and detection method |
| CN111071735B (en) * | 2019-12-31 | 2024-05-10 | 中冶北方（大连）工程技术有限公司 | Device and method for detecting operation and slipping of power frequency transmission adhesive tape |
| CN113844859A (en) * | 2021-09-06 | 2021-12-28 | 呼伦贝尔安泰热电有限责任公司汇流河发电厂 | Mechanical belt slip detection device |
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