CN215946595U - Single-drive traction winch device with adjustable and measurable friction wrap angle - Google Patents
Single-drive traction winch device with adjustable and measurable friction wrap angle Download PDFInfo
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- CN215946595U CN215946595U CN202120357583.9U CN202120357583U CN215946595U CN 215946595 U CN215946595 U CN 215946595U CN 202120357583 U CN202120357583 U CN 202120357583U CN 215946595 U CN215946595 U CN 215946595U
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Abstract
The utility model discloses a single-drive traction winch device with an adjustable and measurable friction wrap angle, which comprises a cable outlet tension measuring wheel, a cable outlet tension sensor, a driven winch, a driven triangular belt wheel, a tension sensor, a tension pulley, a triangular belt, a driving winch, a driving triangular belt wheel, a cable inlet tension sensor, a cable inlet tension measuring wheel, a speed reducing motor, a PLC and a touch screen, wherein the cable outlet tension measuring wheel is connected with the driven winch through the driven triangular belt wheel; the driving triangular belt wheel is coaxially connected with the driving winch, the driven triangular belt wheel is coaxially connected with the driven winch, the speed reduction motor is connected with the driving winch, the cable inlet tension sensor is installed on a shaft of the cable inlet tension measuring wheel, the cable outlet tension sensor is installed on a shaft of the cable outlet tension measuring wheel, the driven and driving triangular belt wheels are connected through a triangular belt, the tensioning wheel is in contact with the triangular belt, and the tension sensor is installed on the tensioning wheel. The utility model can change the friction wrap angle of the cable and the winch by changing the tension force of the tension wheel, can adapt to cables with different friction coefficients, and improves the application range of equipment.
Description
Technical Field
The utility model relates to the technical field of traction winches, in particular to a single-drive traction winch device with an adjustable and measurable friction wrap angle.
Background
The existing large-capacity cable winding and unwinding systems generally adopt a traction winch to lift loads, and a cable storage winch stores a large number of cables. The cable is wound on a pair of winch rope grooves of the traction winch by a plurality of circles, the load tension is gradually attenuated by using the friction principle after each circle of winding, and finally the cable outlet end enters the cable storage winch for storage by smaller tension meeting the requirements. The degree of tension attenuation has a great relationship with the effective friction wrap angle of the cable wound on the winch of the traction winch, and under the condition of a certain friction coefficient, the friction wrap angle is large, the tension attenuation is much larger, and otherwise, the friction wrap angle is less. In order to meet the use requirement, the size of the friction wrap angle must be designed and calculated, and the friction wrap angle is closely related to the number of rope grooves of the winch.
The conventional design has the following ways: 1) the mode that two winches are respectively driven is adopted, so that the advantage is that the wrap angle is equal to the effective groove number wound by the cable multiplied by pi, namely, the effective grooves of the two winches can play a role in tension attenuation, the number of grooves of the single winch is small, and the axial dimension is small. But the disadvantage is also obvious, because two motors are adopted to drive the respective winches, the space is larger no matter the winches are arranged vertically or horizontally, the application is not favorable for the condition that the working space is limited, and the cost is higher; 2) a single motor is used to drive one winch, and the other winch floats. When the tension attenuation device is installed, the axis of the motor is consistent with the length direction of the box body, so that the space in the length direction is reasonably utilized, but only the winch connected with the motor can generate a friction wrap angle, so that the number of grooves of the winch is inevitably increased and the axial size is increased in order to achieve the final tension attenuation effect, and the tension attenuation device is not suitable for occasions with limitation on working space; 3) a single motor is adopted to drive one winch, and the other winch is connected through gear transmission. Thus, the friction wrap angle is doubled compared with the 2 nd case under the same groove number, and the axial size of the capstan is small. But the disadvantage is also obvious, the gear transmission is not impact-resistant due to the rigid connection, the noise generated by the transmission is large, and the manufacturing cost of the gear is high.
Because the traction winch is a key device for retracting and releasing a load object, whether the wrap angle is proper or not can become a key for successfully retracting and releasing a task, a too small wrap angle can cause a cable to slip in a rope groove, and a too large wrap angle can be limited by the installation space of the device or cause waste of cost. Therefore, with limited size of the equipment structure, how to make the friction wrap angle adjustable within a certain range is a key issue faced by the design of the traction winch.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a single-drive traction winch device with an adjustable and measurable friction wrap angle, aiming at the technical problems and the defects in the prior art.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a single-drive traction winch device with an adjustable and measurable friction wrap angle mainly comprises a cable outlet tension measuring wheel, a cable outlet tension sensor, a driven winch, a driven triangle belt wheel, a tension sensor, a tension wheel, a triangle belt, a driving winch, a driving triangle belt wheel, a cable inlet tension sensor, a cable inlet tension measuring wheel, a speed reducing motor, a PLC and a touch screen; the driving triangle belt wheel is coaxially connected with the driving winch, and the driven triangle belt wheel is coaxially connected with the driven winch; the speed reducing motor is connected with the driving winch, and the axis of the speed reducing motor is parallel to the central lines of the driving winch and the driven winch; the cable inlet tension sensor is mounted on a shaft of the cable inlet tension measuring wheel, and the cable outlet tension sensor is mounted on a shaft of the cable outlet tension measuring wheel; the driven triangle belt wheel and the driving triangle belt wheel are connected through a triangle belt, the tension wheel is contacted with the triangle belt, and the tension sensor is arranged on the tension wheel; the cable inlet tension sensor, the cable outlet tension sensor and the tension sensor are respectively connected with the PLC; the PLC is also connected with the touch screen.
Preferably, the driving winch and the driven winch are horizontally arranged, and the speed reduction motor is horizontally mounted.
Preferably, the cable is fed from the lower part of the cable feeding tension measuring wheel, is wound by a section of arc length and then enters a first rope groove on the upper part of the driving winch, then horizontally enters a first rope groove of the driven winch, is wound by a half circle and then enters a second rope groove of the driving winch, and so on, and finally is discharged from the last rope groove of the driven winch, enters the lower part of the cable discharging tension measuring wheel and is horizontally discharged.
Preferably, the force measuring direction of the cable entry tension sensor is consistent with the angle bisector of the included angle of the cable entry and exit of the cable entry tension measuring wheel, and the included angle of the cable entry and exit of the cable entry tension measuring wheel is 120 degrees.
Preferably, the force measuring direction of the cable outlet tension sensor is consistent with the angle bisector of the included angle of the cable inlet and outlet of the cable outlet tension measuring wheel, and the included angle of the cable inlet and outlet of the cable inlet tension measuring wheel is 120 degrees.
Preferably, the actual effective frictional wrap angle of the cable and the groove of the winch is calculated by the following formula
Wherein: theta is cable and rope grooveActual effective frictional wrap angle of the winding; f is the static friction coefficient between the cable and the rope groove; f1The tension of the loading cable is loaded, and is measured by a tension measuring wheel of the loading cable, and the value of the tension measuring wheel is determined by the load; f2The tension of the cable is measured by a cable outlet tension sensor, and the tension wheel can apply different tension forces to the V-belt
So that F2With consequent changes.
Preferably, the cable outlet tension sensor, the cable inlet tension sensor and the tension sensor are all collected by a PLC, and the actually measured static friction coefficient f between the cable and the rope groove can be input into the touch screen. After the data are calculated in the PLC, the cable tension F is displayed on a touch screen2Tension F of cable1The tension force and the actual effective wrap angle theta, and when the actual effective wrap angle theta is out of the design range, the system gives an alarm.
The utility model has the advantages and beneficial effects that:
(1) the installation of the cable inlet tension sensor and the cable outlet tension sensor enables the respective force measuring direction to be consistent with the angle bisector of the included angle between the respective cable inlet and outlet, the reading of the sensors is directly the tension of the cable, and extra calculation is not needed;
(2) different tension forces are applied to the tensioning wheel, so that different friction wrap angles can be obtained, the device is suitable for various cables with different friction coefficients, and the application range of the device is expanded;
(3) when the actual effective friction wrap angle is out of the design range during the use of the equipment, the system gives an alarm, and the safety of the equipment is improved.
Drawings
FIG. 1 is a schematic elevation view of a single drive drawworks apparatus of the present invention having an adjustable and measurable friction wrap angle;
FIG. 2 is a schematic top view of a single drive drawworks apparatus with adjustable and measurable friction wrap angle of the present invention;
FIG. 3 is a block diagram of data acquisition for a single-drive drawworks apparatus with adjustable and measurable friction wrap angle of the present invention.
Detailed Description
The technical scheme of the utility model is further specifically described by taking the tension attenuation winch for a certain lift-off recovery device as an embodiment and combining the attached drawings.
As shown in fig. 1 and fig. 2, the single-drive traction winch device mainly includes an outgoing cable tension measuring wheel 1, an outgoing cable tension sensor 2, a driven winch 3, a driven triangular belt wheel 4, a tension sensor 5, a tension wheel 6, a triangular belt 7, a driving winch 8, a driving triangular belt wheel 9, an incoming cable tension sensor 10, an incoming cable tension measuring wheel 11, a speed reducing motor 13, a PLC14 and a touch screen 15; the driving triangular belt wheel 9 is coaxially connected with the driving winch 8, and the driven triangular belt wheel 4 is coaxially connected with the driven winch 3; the speed reducing motor 13 is connected with the driving winch 8, and the axis of the speed reducing motor 13 is parallel to the central lines of the driving winch 8 and the driven winch 3; the cable inlet tension sensor 10 is arranged on a shaft of the cable inlet tension measuring wheel 11, and the cable outlet tension sensor 2 is arranged on a shaft of the cable outlet tension measuring wheel 1; the driven triangle belt wheel 4 and the driving triangle belt wheel 9 are connected through a triangle belt 7, a tension pulley 6 is in contact with the triangle belt 7, and the tension sensor 5 is installed on the tension pulley 6; the cable inlet tension sensor 10, the cable outlet tension sensor 2 and the tension sensor 5 are respectively connected with a PLC 14; the PLC14 is also connected to the touch screen 15.
The driving winch (8) and the driven winch (3) are horizontally arranged, and the speed reducing motor (13) is horizontally mounted.
The mooring rope 12 enters the mooring rope from the lower part of the mooring rope tension measuring wheel 11, enters the first rope groove on the upper part of the driving winch 8 after being wound by a section of arc length, then horizontally enters the first rope groove of the driven winch 3, enters the second rope groove of the driving winch 8 after being wound by half a circle, and so on, finally goes out of the mooring rope from the last rope groove of the driven winch 3, enters the lower part of the mooring rope tension measuring wheel 1, and goes out of the mooring rope horizontally.
The force measuring direction of the cable entry tension sensor 10 is consistent with the angle bisector of the included angle of the cable entry and exit of the cable entry tension measuring wheel 11, and the included angle of the cable entry and exit of the cable entry tension measuring wheel 11 is 120 degrees. The force measuring direction of the cable outlet tension sensor 2 is consistent with the angle bisector of the included angle of the cable inlet and outlet of the cable outlet tension measuring wheel 1, and the included angle of the cable inlet and outlet of the cable inlet tension measuring wheel 1 is 120 degrees.
The actual effective frictional wrap angle of the cable 12 and the winch groove is calculated by the following formula
Wherein: θ is the actual effective friction wrap angle of the rope 12 and rope groove wrap; f is the static friction coefficient between the cable 12 and the rope groove; f1In order to load the cable tension, the cable tension is measured by a cable tension measuring wheel 1, and the value of the cable tension is determined by the load; f2For the cable outlet tension, the cable outlet tension is measured by the cable outlet tension sensor 2, and the tension wheel 6 applies different tension forces to the V-belt 7 to enable the tension F2The influence relation of the tension on the wrap angle can be researched along with the change of the tension.
Fig. 3 is a block diagram showing data acquisition of the single-drive traction winch device with adjustable and measurable friction wrap angle, wherein the cable outlet tension sensor 2, the cable inlet tension sensor 10 and the tension sensor 5 are all acquired by a PLC14, and the PLC14 is provided with a CPU module, a relay input and output module, an analog quantity acquisition module and a module capable of communicating with a touch screen. The touch screen 15 can be fed with the actually measured static friction coefficient f between the cable 12 and the rope groove. The data are calculated in the PLC14 and the cable tension F is displayed on the touch screen 152Tension F of cable1The tension force and the actual effective wrap angle theta, and when the actual effective wrap angle theta is out of the design range, the system gives an alarm.
Before the system runs, the average static friction coefficient between the wound cable and the rope groove is measured through related instruments, the friction coefficient value is input into the touch screen 15, and the upper limit and the lower limit of the obtained actual effective wrap angle are calculated according to the design. The cable 12 is wound in the mode as shown in fig. 1 and 2, the speed reducing motor 13 is started and runs at a low speed after the detection is finished, the numerical value of the actual effective wrap angle theta is observed through the touch screen 15, and if the numerical value is not within the set upper and lower limit ranges, the tension force of the tension pulley 6 is adjusted until the requirement is met. This state is then used as the initial state for system operation, and after a long period of system inactivity, the touch screen 15 may alert the actual effective wrap angle, and the tensioner is further adjusted as described above.
The foregoing is only a preferred embodiment of the present invention. The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such equivalent changes and modifications as would be obvious to one skilled in the art be included herein are deemed to be within the scope and spirit of the present invention as defined by the appended claims.
Claims (5)
1. A single-drive traction winch device with an adjustable and measurable friction wrap angle is characterized by mainly comprising a cable outlet tension measuring wheel (1), a cable outlet tension sensor (2), a driven winch (3), a driven triangular belt wheel (4), a tension sensor (5), a tension wheel (6), a triangular belt (7), a driving winch (8), a driving triangular belt wheel (9), a cable inlet tension sensor (10), a cable inlet tension measuring wheel (11), a speed reducing motor (13), a PLC (14) and a touch screen (15); the driving triangle belt wheel (9) is coaxially connected with the driving winch (8), and the driven triangle belt wheel (4) is coaxially connected with the driven winch (3); the speed reducing motor (13) is connected with the driving winch (8); the cable inlet tension sensor (10) is mounted on a shaft of the cable inlet tension measuring wheel (11), and the cable outlet tension sensor (2) is mounted on a shaft of the cable outlet tension measuring wheel (1); the driven triangular belt wheel (4) is connected with the driving triangular belt wheel (9) through a triangular belt (7), the tensioning wheel (6) is in contact with the triangular belt (7), and the tension sensor (5) is installed on the tensioning wheel (6); the cable inlet tension sensor (10), the cable outlet tension sensor (2) and the tension sensor (5) are respectively connected with the PLC (14); the PLC (14) is also connected with a touch screen (15); and a cable (12) enters from the lower part of the cable entering tension measuring wheel (11), enters a first rope groove on the upper part of the driving winch (8) after being wound for a section of arc length, then horizontally enters a first rope groove of the driven winch (3), then enters a second rope groove of the driving winch (8) after being wound for a half circle, and so on, and finally exits from the last rope groove of the driven winch (3), enters the lower part of the cable exiting tension measuring wheel (1) and horizontally exits.
2. The single-drive traction winch device with adjustable and measurable friction wrap angle as claimed in claim 1, characterized in that the driving winch (8) and the driven winch (3) are horizontally arranged, and the reduction motor (13) is horizontally mounted.
3. The single-drive traction winch device with the adjustable and measurable friction wrap angle as claimed in claim 1, wherein the force measuring direction of the cable entry tension sensor (10) is consistent with the angle bisector of the included angle of the cable entry and exit of the cable entry tension measuring wheel (11), and the included angle of the cable entry and exit of the cable entry tension measuring wheel (11) is 120 degrees.
4. The single-drive traction winch device with the adjustable and measurable friction wrap angle as claimed in claim 1, wherein the force measuring direction of the cable outlet tension sensor (2) is consistent with the angle bisector of the included angle of the cable inlet and outlet of the cable outlet tension measuring wheel (1), and the included angle of the cable inlet and outlet of the cable outlet tension measuring wheel (1) is 120 degrees.
5. The single-drive traction winch device with the adjustable and measurable friction wrap angle as claimed in claim 1, characterized in that the data collected by the cable outlet tension sensor (2), the cable inlet tension sensor (10) and the tension sensor (5) are transmitted to the PLC (14), and the actually measured static friction coefficient f between the cable (12) and the rope groove can be input into the touch screen (15); the data are calculated in the PLC (14) and the cable tension F is displayed on the touch screen (15)2Tension F of cable1The tension force and the actual effective wrap angle theta, and when the actual effective wrap angle theta is out of the design range, the system gives an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120357583.9U CN215946595U (en) | 2021-02-08 | 2021-02-08 | Single-drive traction winch device with adjustable and measurable friction wrap angle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120357583.9U CN215946595U (en) | 2021-02-08 | 2021-02-08 | Single-drive traction winch device with adjustable and measurable friction wrap angle |
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| CN215946595U true CN215946595U (en) | 2022-03-04 |
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| CN202120357583.9U Active CN215946595U (en) | 2021-02-08 | 2021-02-08 | Single-drive traction winch device with adjustable and measurable friction wrap angle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117623154A (en) * | 2024-01-25 | 2024-03-01 | 河南省新乡水文水资源测报分中心 | Automatic tension control and feedback monitoring system of underwater winch |
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2021
- 2021-02-08 CN CN202120357583.9U patent/CN215946595U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117623154A (en) * | 2024-01-25 | 2024-03-01 | 河南省新乡水文水资源测报分中心 | Automatic tension control and feedback monitoring system of underwater winch |
| CN117623154B (en) * | 2024-01-25 | 2024-04-19 | 河南省新乡水文水资源测报分中心 | Automatic tension control and feedback monitoring system of underwater winch |
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