CN210313259U - Winch reliable to use - Google Patents
Winch reliable to use Download PDFInfo
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- CN210313259U CN210313259U CN201920599691.XU CN201920599691U CN210313259U CN 210313259 U CN210313259 U CN 210313259U CN 201920599691 U CN201920599691 U CN 201920599691U CN 210313259 U CN210313259 U CN 210313259U
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Abstract
The utility model provides a winch reliable in use, including the motor, the transmission shaft, reduction gears, the reel, wire rope, a support, overload limiter, controller and counter, motor output shaft and reduction gears pass through transmission shaft transmission and connect, reduction gears is connected with the reel transmission in order to drive wire rope coiling on the reel, overload limiter includes first shaft coupling, the second shaft coupling, first friction disc, second friction disc and regulating part, the load on wire rope is P1, the frictional force between first friction disc and the second friction disc is P2, regulating part adjustable P2, when P1 is less than or equal to P2, first friction disc drives second friction disc synchronous revolution, when P1 > P2, first friction disc and second friction disc rotate relatively in order to break off the connection between motor output shaft and the transmission shaft, counter measurement overload limiter's disconnection number N1, be equipped with preset number N2 in the controller, when N1 is more than or equal to N2, the P2 needs to be readjusted, the controller controls the motor to be powered off, and the use reliability of the lifting winch is improved.
Description
Technical Field
The utility model relates to a capstan winch technical field especially relates to a use reliable capstan winch.
Background
The winch is a traction device for self-protection of vehicles and ships, can be used for self-rescue and rescue in severe occasions such as snowfields, swamps, deserts, beaches and the like, also has the capabilities of removing obstacles, dragging articles, installing facilities and the like, and is an essential safety device for outdoor sports. The existing winch does not have the function of load limiting, and the winch continues to pull when the load is large, so that parts of the winch are easily damaged, the winch fails, and the winch is not reliable enough to use.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a use reliable capstan winch.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a winch with reliable use comprises a motor, a transmission shaft, a speed reducing mechanism, a winding drum, a steel wire rope and a support, wherein an output shaft of the motor is in transmission connection with the speed reducing mechanism through the transmission shaft, the speed reducing mechanism is in transmission connection with the winding drum to drive the steel wire rope to be wound on the winding drum, the winch further comprises an overload limiter, a controller and a counter, the overload limiter comprises a first coupling rotating synchronously with the output shaft of the motor, a second coupling rotating synchronously with the transmission shaft, a first friction plate rotating synchronously with the first coupling, a second friction plate rotating synchronously with the second coupling, and an adjusting piece adjusting the friction force between the first friction plate and the second friction plate, the load on the steel wire rope is P1, the friction force between the first friction plate and the second friction plate is P2, when P1 is not more than P2, the first friction plate drives the second friction plate to rotate synchronously, when P1 is more than P2, the first friction plate and the second friction plate rotate relatively to disconnect the output shaft of the, the counter is arranged on the overload limiter and used for measuring the disconnection times N1 of the overload limiter, the counter is electrically connected with the controller, the controller is internally provided with a preset time N2, and when N1 is not less than N2, the controller controls the motor to be powered off.
Furthermore, the adjusting piece comprises a spring and a stop plate, the spring is sleeved on the first coupling and tightly presses the first friction plate and the second friction plate, and the stop plate is sleeved on the first coupling and can axially move along the first coupling so as to adjust the pressing force of the spring on the first friction plate and the second friction plate.
Furthermore, the first coupling is provided with an external thread, the stop plate is provided with an internal thread, and the first coupling is in threaded connection with the stop plate.
Furthermore, the spring is a disc spring, a pressure plate is arranged between the disc spring and the stop plate, and the stop plate extrudes the disc spring through the pressure plate.
Further, the counter comprises a first rotating speed sensor for measuring the rotating speed of the first coupling and a second rotating speed sensor for measuring the rotating speed of the second coupling, and the overload limiter is disconnected once when the rotating speed measured by the second rotating speed sensor is less than the rotating speed measured by the first rotating speed sensor.
Further, the first coupling and the second coupling form a mounting cavity in the radial direction, and the first friction plate and the second friction plate are located in the mounting cavity.
Furthermore, the first friction plate and the second friction plate are both provided with a plurality of friction plates, and the first friction plate and the second friction plate are arranged at intervals and are adjacent to each other.
Further, the winch further comprises a prompting lamp, and when the disconnection times are larger than or equal to the preset times, the prompting lamp is turned on.
Further, reduction gears includes the box and is located one-level gear shaft, one-level gear, secondary gear shaft, tertiary sun gear, tertiary planet wheel and the level four planet wheel of box, and the transmission shaft is connected with one-level gear shaft transmission and drives one-level gear, secondary gear shaft, tertiary sun gear, tertiary planet wheel, level four planet wheel rotation in proper order, and level four planet wheel is connected with the reel transmission, and tertiary planet wheel and level four planet wheel all are equipped with the inner race needle roller bearing.
Furthermore, the outer surface of the third-stage sun gear is matched with the inner wall of the box body through a deep groove ball bearing, and the inner surface of the third-stage sun gear is matched with the first-stage gear shaft through a thrust ball bearing.
After the technical scheme is adopted, the utility model has the advantages of as follows:
1. by arranging the overload limiter, when the load on the steel wire rope is greater than the friction force between the first friction plate and the second friction plate, the first friction plate and the second friction plate rotate relatively, the winding drum cannot rotate continuously, so that the winch is in a state of load stop, the fatigue damage of parts of the winch caused by overlarge load is avoided, and the winch is safer and more reliable to use; meanwhile, after the first friction plate and the second friction plate rotate relatively for a plurality of times, the contact surface is easy to wear, so that the friction force between the first friction plate and the second friction plate is reduced, the disconnection times of the overload limiter are measured by setting a counter, namely, the overload times of the winch are counted, when the overload times are more than or equal to the preset times, the friction force between the first friction plate and the second friction plate needs to be readjusted, the controller controls the motor to be powered off, a worker is reminded to readjust the friction force between the first friction plate and the second friction plate through the adjusting piece, the tractable load of the winch cannot be reduced along with the increase of the overload times, and the use reliability of the winch is further improved.
2. The adjusting piece comprises a spring and a stop plate, the spring tightly presses the first friction plate and the second friction plate to ensure that the first friction plate is tightly attached to the second friction plate, the deformation amount of the spring can be adjusted by adjusting the axial position of the stop plate on the first coupling, and then the pressing force of the spring acting on the first friction plate and the second friction plate is adjusted, so that the friction force between the first friction plate and the second friction plate can be adjusted, and the capacity of the winch can be adjusted.
3. The first coupling is in threaded connection with the stop plate, and the position of the stop plate is simple to adjust; meanwhile, the threads have self-locking performance, so that the connection between the stop plate and the first coupling is reliable, and the fixing effect of the stop plate on the spring is further ensured.
4. The spring is a disc spring, the disc spring needs small axial space, can provide larger pressing force with small deformation, and has large rigidity and reliable use; a pressure plate is arranged between the disc spring and the stop plate, and the stop plate extrudes the disc spring through the pressure plate, so that the disc spring is extruded more uniformly and reliably.
5. By arranging the first rotating speed sensor and the second rotating speed sensor, when the rotating speed measured by the second rotating speed sensor is less than that measured by the first rotating speed sensor, the first friction plate and the second friction plate rotate relatively, the load on the steel wire rope is overloaded, and the meter overload limiter is disconnected once.
6. The first coupling and the second coupling form an installation cavity in the radial direction, the first friction plate and the second friction plate are located in the installation cavity, the first friction plate can be matched with the outer surface of the first coupling to enable the first friction plate and the first coupling to rotate synchronously, the second friction plate can be matched with the inner surface of the second coupling to enable the second friction plate and the second coupling to rotate synchronously, and the overload limiter is compact in structure.
7. Through setting up a plurality of first friction discs and second friction disc, the adjacent interval setting of first friction disc and second friction disc increases holistic frictional force, promotes the capacity that the capstan winch can pull.
8. Through setting up the warning light, when the disconnection number of times is greater than preset number of times, explain that the frictional force between first friction disc and the second friction disc needs readjustment, the warning light is bright, reminds the staff to readjust the packing force of spring through the regulating part.
9. Through set up in-band circle needle bearing on tertiary planet wheel and level four planet wheel, improve tertiary planet wheel, the driven stationarity of level four planet wheel, prevent that the card is dead, also difficult wearing and tearing simultaneously promote the durability of tertiary planet wheel and level four planet wheel, and then make reduction gears use more reliable and more stable.
10. The outer surface of the third-level sun gear is matched with the inner wall of the box body through the deep groove ball bearing, the inner surface of the third-level sun gear is matched with the first-level gear shaft through the thrust ball bearing, the wear resistance is better, long-term wear is avoided, the third-level sun gear is enabled to move, and the transmission stability of the third-level sun gear is guaranteed.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of the winch of the present invention.
Fig. 2 is a schematic structural diagram of an overload limiter in a winch according to the present invention.
Fig. 3 is a front view of the first coupling of the winch of the present invention.
Fig. 4 is a top view of the first coupling of the winch of the present invention.
Fig. 5 is a schematic structural diagram of a first friction plate in the winch of the present invention.
Fig. 6 is a schematic structural view of a second coupling of the winch of the present invention.
Fig. 7 is a schematic structural view of a second friction plate in the winch of the present invention.
Fig. 8 is a schematic structural view of the speed reducing mechanism in the winch according to the present invention.
The names of the components marked in the figures are as follows:
1. a motor; 2. a drive shaft; 3. a speed reduction mechanism; 31. a box body; 32. a primary gear shaft; 33. a primary gear; 34. a secondary gear shaft; 35. a third-stage sun gear; 351. a deep groove ball bearing; 352. a thrust ball bearing; 36. a third planet wheel; 37. a four-stage planet wheel; 38. a needle bearing with an inner ring; 4. a reel; 5. a wire rope; 6. a support; 7. an overload limiter; 71. a first coupling; 711. positioning the surface; 72. a second coupling section; 721. an internal gear; 73. a first friction plate; 731. a limiting surface; 74. a second friction plate; 741. an outer gear; 742. a chip groove; 75. a disc spring; 76. a stopper plate; 77. a pressure plate.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments. It is to be understood that the following terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like are used in an orientation or positional relationship relative to one another only as illustrated in the accompanying drawings and are used merely for convenience in describing and simplifying the invention, and do not indicate or imply that the device/component so referred to must have a particular orientation or be constructed and operated in a particular orientation and therefore should not be considered as limiting the invention.
As shown in fig. 1 and fig. 2, the present invention provides a winch with reliable use, including a motor 1, a transmission shaft 2, a speed reducing mechanism 3, a winding drum 4, a steel wire rope 5 and a bracket 6, wherein an output shaft of the motor 1 is in transmission connection with the speed reducing mechanism 3 through the transmission shaft 2, the speed reducing mechanism 3 is in transmission connection with the winding drum 4, when the winch is in operation, the motor 1 drives the transmission shaft 2 to rotate and drives the winding drum 4 to rotate after being reduced by the speed reducing mechanism 3 so as to drive the steel wire rope 5 to wind on the winding drum 4, the winch further includes an overload limiter 7, a controller and a counter, the overload limiter 7 includes a first coupling 71 rotating synchronously with the output shaft of the motor, a second coupling 72 rotating synchronously with the transmission shaft 2, a first friction plate 73 rotating synchronously with the first coupling 71, a second friction plate 74 rotating synchronously with the second coupling 72 and an adjusting member, a load on the, the friction force between the first friction plate and the second friction plate is P2, the adjusting piece can adjust the size of P2, P1 is not more than P2, the first friction plate 73 drives the second friction plate 74 to synchronously rotate, P1 is more than P2, the first friction plate 73 and the second friction plate 74 relatively rotate to disconnect the connection between the output shaft of the motor and the transmission shaft 2, the winding drum 4 cannot continuously rotate, the winch is in a state that the load stops, the part fatigue damage of the winch caused by overlarge load is avoided, and the winch is safer and more reliable to use; after the first friction plate 73 and the second friction plate 74 rotate relatively for a plurality of times, the contact surfaces are easily worn, so that the friction force between the first friction plate 73 and the second friction plate 74 is reduced, the counter is arranged on the overload limiter 7 and measures the disconnection times N1 of the overload limiter 7, namely, the overload times of the winch are counted, the counter is electrically connected with the controller, a preset time N2 is arranged in the controller, when N1 is larger than or equal to N2, the friction force between the first friction plate and the second friction plate needs to be readjusted, the controller controls the motor to be powered off, and a worker is reminded to readjust P2 through the adjusting piece, so that the load which can be dragged by the winch cannot be reduced along with the increase of the overload times, and the use reliability of the winch is further improved.
In the embodiment, the adjusting piece comprises a spring and a stop plate 76, the spring is specifically a disc spring 75, the disc spring 75 needs a small axial space, can provide a large pressing force with small deformation, and has high rigidity and reliable use; the disc spring 75 is sleeved on the first coupling 71 and tightly presses the first friction plate 73 and the second friction plate 74, so that the first friction plate 73 is tightly attached to the second friction plate 74, the stop plate 76 is sleeved on the first coupling 71 and can axially move along the first coupling 71, the deformation amount of the disc spring can be adjusted, the pressing force of the disc spring on the first friction plate and the second friction plate can be adjusted, the friction force between the first friction plate and the second friction plate can be adjusted, and the loading capacity of the winch can be adjusted.
The first coupling 71 is provided with external threads, the stop plate 76 is provided with internal threads, the first coupling 71 is connected with the stop plate 76 through threads, and the position adjustment operation of the stop plate 76 is simple; meanwhile, the threads have self-locking performance, so that the connection between the stop plate and the first coupling is reliable, and the fixing effect of the stop plate on the spring is further ensured.
A pressure plate 77 is arranged between the disc spring 75 and the stop plate 76, and the stop plate 76 presses the disc spring 75 through the pressure plate 77, so that the pressing on the disc spring 75 is more uniform and reliable.
The counter comprises a first rotating speed sensor for measuring the rotating speed of the first coupling 71 and a second rotating speed sensor for measuring the rotating speed of the second coupling 72, and when the rotating speed measured by the second rotating speed sensor is less than the rotating speed measured by the first rotating speed sensor, the relative rotation between the first friction plate 73 and the second friction plate 74 is shown, the load on the steel wire rope 5 is overloaded, and the meter overload limiter 7 is disconnected once. The first rotating speed sensor and the second rotating speed sensor both adopt MP-992 subminiature electromagnetic rotating speed sensors.
The first coupling 71 and the second coupling 72 form a mounting cavity in the radial direction, and the first friction plate 73 and the second friction plate 74 are located in the mounting cavity such that the first friction plate 73 can be engaged with the outer surface of the first coupling 71 to cause the first friction plate 73 to rotate synchronously with the first coupling 71, and the second friction plate 74 can be engaged with the inner surface of the second coupling 72 to cause the second friction plate 74 to rotate synchronously with the second coupling 72, so that the structure of the overload limiter 7 is more compact.
Specifically, with reference to fig. 3 to 7, a positioning surface 711 is disposed on an outer surface of the first coupling 71, a limiting surface 731 engaged with the positioning surface 711 is disposed on an inner wall of the first friction plate 73, and the positioning surface 711 is engaged with the limiting surface 731 to enable the first friction plate 73 and the first coupling 71 to rotate synchronously; an internal gear 721 is provided on an inner wall of the second coupling 72, an external gear 741 engaged with the internal gear 721 is provided on the second friction plate 74, and the internal gear 721 is engaged with the external gear 741 so that the second friction plate 74 and the second coupling 72 rotate synchronously. The second friction plate 74 is provided with a chip removal groove 742 for facilitating chip removal.
The winch further comprises a prompting lamp, when the disconnection times are larger than or equal to the preset times, the fact that the friction force between the first friction plate and the second friction plate needs to be adjusted again is indicated, and the prompting lamp is turned on to remind a worker to adjust the pressing force of the spring again through the adjusting piece.
As shown in fig. 8, the speed reducing mechanism 3 includes a box 31 and a first gear shaft 32 located in the box 31, a first gear 33, a second gear shaft 34, a third sun gear 35, a third planetary gear 36 and a fourth planetary gear 37, the transmission shaft 2 is in transmission connection with the first gear shaft 32 and sequentially drives the first gear 33, the second gear shaft 34, the third sun gear 35, the third planetary gear 36, the fourth planetary gear 37 rotates, the fourth planetary gear 37 is in transmission connection with the winding drum 4, the third planetary gear 36 and the fourth planetary gear 37 are both provided with an inner ring needle bearing 38, the transmission smoothness of the third planetary gear 36 and the fourth planetary gear 37 is improved, the speed reducing mechanism is prevented from being stuck, and meanwhile, the speed reducing mechanism is not easy to wear, the durability of the third planetary gear 36 and the durability of.
The outer surface of tertiary sun gear 35 passes through deep groove ball bearing 351 and the cooperation of box 31 inner wall, and the internal surface passes through thrust ball bearing 352 and the cooperation of one-level gear shaft 32, and deep groove ball bearing 351 and thrust ball bearing 352's wearability is better, avoids long-term wearing and tearing to make tertiary sun gear 35 drunkenness, guarantees the driven stationarity of tertiary sun gear 35.
It will be appreciated that the first and second friction plates may each be provided with 1, 2, 4, 5 etc.
In addition to the preferred embodiments described above, other embodiments of the present invention are also possible, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the appended claims.
Claims (10)
1. A winch reliable in use comprises a motor, a transmission shaft, a speed reducing mechanism, a winding drum, a steel wire rope and a bracket, wherein an output shaft of the motor is in transmission connection with the speed reducing mechanism through the transmission shaft, the speed reducing mechanism is in transmission connection with the winding drum to drive the steel wire rope to be wound on the winding drum, the winch is characterized by further comprising an overload limiter, a controller and a counter, the overload limiter comprises a first coupling rotating synchronously with the output shaft of the motor, a second coupling rotating synchronously with the transmission shaft, a first friction plate rotating synchronously with the first coupling, a second friction plate rotating synchronously with the second coupling and an adjusting piece adjusting the friction force between the first friction plate and the second friction plate, the load on the steel wire rope is P1, the friction force between the first friction plate and the second friction plate is P2, when P1 is not more than P2, the first friction plate drives the second friction plate to rotate synchronously, and when P1 is more than P2, the first friction plate and the second friction plate rotate relatively to break the connection between the output shaft of the motor and the transmission shaft, the counter is arranged on the overload limiter and measures the breaking times N1 of the overload limiter, the counter is electrically connected with the controller, the controller is internally provided with preset times N2, and when N1 is not less than N2, the controller controls the motor to be powered off.
2. The winch of claim 1, wherein the adjustment member includes a spring disposed on the first coupling and pressing the first friction plate and the second friction plate, and a stopper plate disposed on the first coupling and axially movable along the first coupling to adjust pressing force of the spring against the first friction plate and the second friction plate.
3. The winch of claim 2, wherein the first coupling is provided with an external thread and the stop plate is provided with an internal thread, the first coupling being threadedly coupled to the stop plate.
4. The winch of claim 2, wherein the spring is a disc spring, and a pressure plate is disposed between the disc spring and the stop plate, and the stop plate presses the disc spring via the pressure plate.
5. The winch of claim 1, wherein the counter comprises a first speed sensor for measuring a first coupling speed and a second speed sensor for measuring a second coupling speed, wherein the meter overload limiter is disengaged once when the second speed sensor measures a speed less than the first speed sensor.
6. The winch of claim 1, wherein the first coupling and the second coupling define a mounting cavity in a radial direction, the first friction plate and the second friction plate being located within the mounting cavity.
7. The winch of claim 1, wherein a plurality of first and second friction plates are provided, the first and second friction plates being spaced apart from one another.
8. The winch of claim 1, further comprising a notification light that is illuminated when the number of disconnections is greater than or equal to a predetermined number.
9. The winch of claim 1, wherein the speed reduction mechanism comprises a box body, and a first gear shaft, a first gear, a second gear shaft, a third sun gear, a third planet gear and a fourth planet gear which are arranged in the box body, wherein a transmission shaft is in transmission connection with the first gear shaft and sequentially drives the first gear, the second gear shaft, the third sun gear, the third planet gear and the fourth planet gear to rotate, the fourth planet gear is in transmission connection with the winding drum, and the third planet gear and the fourth planet gear are both provided with inner ring needle rolling bearings.
10. The winch of claim 9, wherein the outer surface of the tertiary sun gear engages the inner wall of the housing through deep groove ball bearings and the inner surface engages the primary gear shaft through thrust ball bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920599691.XU CN210313259U (en) | 2019-04-28 | 2019-04-28 | Winch reliable to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920599691.XU CN210313259U (en) | 2019-04-28 | 2019-04-28 | Winch reliable to use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210313259U true CN210313259U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920599691.XU Active CN210313259U (en) | 2019-04-28 | 2019-04-28 | Winch reliable to use |
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| Country | Link |
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| CN (1) | CN210313259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203839A (en) * | 2019-04-28 | 2019-09-06 | 浙江诺和机电股份有限公司 | A kind of service-strong capstan winch |
| CN114439859A (en) * | 2022-01-10 | 2022-05-06 | 襄阳绿控电气科技有限公司 | Pre-compression friction coupling |
-
2019
- 2019-04-28 CN CN201920599691.XU patent/CN210313259U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203839A (en) * | 2019-04-28 | 2019-09-06 | 浙江诺和机电股份有限公司 | A kind of service-strong capstan winch |
| CN114439859A (en) * | 2022-01-10 | 2022-05-06 | 襄阳绿控电气科技有限公司 | Pre-compression friction coupling |
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