CN117811277A - Motor structure of winch - Google Patents
Motor structure of winch Download PDFInfo
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- CN117811277A CN117811277A CN202410221015.4A CN202410221015A CN117811277A CN 117811277 A CN117811277 A CN 117811277A CN 202410221015 A CN202410221015 A CN 202410221015A CN 117811277 A CN117811277 A CN 117811277A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 122
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- 238000004804 winding Methods 0.000 claims description 15
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention provides a motor structure of a winch, which comprises a motor body, an output shaft, a transmission shaft, a self-locking mechanism and the like, wherein the transmission shaft is arranged on one side of a rotor of the motor body and is in transmission fit with the rotor; the self-locking mechanism is arranged around the transmission shaft, the rotor is in transmission fit with the self-locking mechanism, and the self-locking mechanism is in transmission fit with the transmission shaft teeth through the delay gear; the self-locking mechanism is used for reversely self-locking the transmission shaft, the delay gear is used for delaying the driving of the transmission shaft when the rotor is switched and turned to change the self-locking direction of the self-locking mechanism, and the self-locking mechanism is distributed between the rotor and the output shaft to serve as a transmission component, so that the self-locking mechanism is compatible with the self-locking function of the motor body and can lock the winch disc at one step, the motor is protected, and meanwhile, rescue car slipping accidents are avoided.
Description
Technical Field
The invention relates to the technical field of winches, in particular to a motor structure of a winch.
Background
The winch is a traction device and mainly used for self-rescue and rescue of vehicles in severe environments, and when the vehicles are in a mire or rugged terrain and are difficult to land on four wheels, the winch can drag the vehicles to leave dangerous situations by taking other objects as fulcrums. Winch can also be used to tow or tow large obstacles such as trees. The existing electric winch mainly comprises a motor body, a transmission shaft, a reduction transmission case, a winch drum and other structures, and the reduction transmission case is used for connecting power between the motor body and the winch drum, so that a steel wire rope wound on the winch drum can generate larger traction force, and the winch traction function is realized.
The motor body generally has a self-locking function, and the coil is kept in an electrified and attracted state by utilizing an auxiliary contact of the contactor. The winch device is mainly used in emergency and severe environments, and the motor body of the winch device is often overloaded to cause the problems of overload, too high rotating speed, sudden locking caused by sudden torque reduction and burning out of the motor body. In addition, the self-locking function of the power supply can be influenced by the power supply interruption. All can cause the risk of rescue accidents.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a motor structure of a winch, which is characterized in that an external self-locking mechanism is used as a transmission component between a rotor of a motor body and an output shaft of a winch drum, so that the motor structure can be compatible with and used with the self-locking function of the motor body, the winch drum can be locked by one step by the motor body, and the motor is protected.
In order to solve the technical problems, the invention solves the problem that the motor body in the existing winch device is damaged due to overload or power supply is stopped to cause rescue and sliding.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a motor structure of a winch, comprising:
a motor body having a rotor;
the transmission shaft is arranged at one side of the rotor and is in transmission fit with the rotor;
the output shaft is used for being in transmission fit with the transmission shaft teeth;
the self-locking mechanism is arranged around the transmission shaft, the rotor is in transmission fit with the self-locking mechanism, and the self-locking mechanism is in transmission fit with the transmission shaft teeth through the delay gear;
the self-locking mechanism is used for reversely self-locking the transmission shaft, and the delay gear is used for delaying the driving of the transmission shaft when the rotor is switched and turned so as to change the self-locking direction of the self-locking mechanism.
Preferably, the self-locking mechanism comprises driven shafts arranged on two sides of the transmission shaft, the delay gears are arranged on the driven shafts, the two delay gears are in transmission fit with the teeth of the transmission shaft, and the rotor is in transmission fit with the teeth of the driven shafts so as to control the two driven shafts to synchronously rotate.
Preferably, the self-locking mechanism comprises a ratchet wheel and a pawl, and the two ratchet wheels are reversely arranged on the transmission shaft and meshed with the pawl respectively; only one set of the ratchet wheel and the pawl are contacted with each other when the transmission shaft rotates.
Preferably, the self-locking mechanism comprises an elastic transmission member which is arranged on the side edge of the driven shaft and is in transmission fit with the teeth of the driven shaft, and the pawl is supported by the middle part, one end of the pawl is used for being meshed with the ratchet wheel, and the other end of the pawl is connected with the elastic transmission member.
Preferably, the elastic transmission member is driven by the driven shaft for controlling engagement and disengagement of the ratchet and the pawl, and the two elastic transmission members are rotated in opposite directions.
Preferably, the elastic transmission piece comprises a toothed plate, a rack and a pull rod, wherein the toothed plate is slidably arranged on the bracket and is in transmission fit with the driven shaft teeth, two ends of the toothed plate are connected with the rack through the elastic piece, and the pull rod is fixed on the toothed plate and is used for being connected with the pawl.
Preferably, the support is provided with a sliding groove for installing the toothed plate, the sliding groove is used for limiting the moving distance of the toothed plate, and the toothed plate controlled to move to the end part of the sliding groove is in transmission fit with the driven shaft through the rack.
Preferably, the delay gear comprises an inner gear and an outer gear, the inner gear is arranged on the driven shaft and rotates synchronously with the driven shaft, the outer gear is sleeved on the inner gear, a first tooth is arranged on the inner side of the outer gear, a second tooth is arranged on the surface of the inner gear, and the first tooth is meshed with the second tooth.
Preferably, the first teeth and the second teeth are provided in not more than two.
Preferably, the output shaft is used for mounting a winding drum for winding the rope.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a motor structure of a winch, which surrounds a motor body and is externally provided with a self-locking mechanism, wherein the self-locking mechanism is distributed between a rotor and an output shaft of the motor body as a transmission component, can be compatible with and used for the self-locking function of the motor body, can lock a winch drum of the winch by one step, protects the motor and simultaneously avoids rescue car sliding accidents.
The self-locking mechanism is realized by utilizing the unidirectional transmission relation of the ratchet wheel and the pawl, the ratchet wheel and the pawl assemblies are arranged in the forward and backward rotation directions of the transmission shaft, the ratchet wheel and the pawl in the forward and backward directions are not meshed at the same time, and the meshing direction of the ratchet wheel and the pawl is opposite to the rotation reverse direction of the transmission shaft, so that the normal operation of the transmission shaft is not disturbed, the transmission shaft can realize reverse locking, and the problem of sliding is avoided.
According to the delay gear, the transmission shaft provided with the ratchet wheel is driven by the delay gear, and the engagement and separation of the ratchet wheel and the pawl are regulated in a limited way, so that the phenomenon of locking the ratchet wheel and the pawl due to rotor reversing is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram showing a connection structure between a rotor of a motor body and an output shaft through a self-locking mechanism;
fig. 2 is a schematic diagram II of a connection structure between a rotor of a motor body and an output shaft through a self-locking mechanism;
FIG. 3 is a schematic diagram of a self-locking mechanism according to the present invention;
FIG. 4 is a schematic diagram of the transmission cooperation structure of the transmission shaft and the driven shaft of the present invention;
FIG. 5 is a second schematic diagram of the self-locking mechanism of the present invention;
FIG. 6 is a schematic diagram of a driving engagement structure of a rotor and a driven shaft according to the present invention;
FIG. 7 is a schematic view of a ratchet and pawl configuration of the present invention;
FIG. 8 is a schematic view of an elastic transmission member according to the present invention;
FIG. 9 is a schematic diagram showing a sectional and separated structure of a delay gear according to the present invention
FIG. 10 is a schematic diagram of a connection structure between a motor body and a hoisting frame according to the present invention;
fig. 11 is a schematic view showing the overall structure of the hoist drum and the hoist frame of the present invention after being sectioned.
Description of the figure: 1. a motor body; 2. a rotor; 3. a transmission shaft; 4. an output shaft; 5. a winding frame; 6. a winding drum; 7. a self-locking mechanism; 71. a driven shaft; 72. a ratchet wheel; 73. a pawl; 74. an elastic transmission member; 741. a toothed plate; 742. a rack; 743. a pull rod; 744. a bracket; 8. a delay gear; 81. an internal gear; 82. an external gear; 83. a first tooth; 84. and a second tooth.
Detailed Description
The present invention is described in further detail below with reference to the accompanying drawings.
The following description is presented to enable one of ordinary skill in the art to practice the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. indicate orientations or positions based on the orientation or positional relationship shown in the drawings, which are merely for convenience in describing the present simplified description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus the above terms are not to be construed as limiting the present invention.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
Referring to fig. 1-11, the invention provides a motor structure of a winch, which comprises a motor body 1, wherein the motor body is provided with a rotor 2, a transmission shaft 3 is arranged at one side of the end part of the rotor 2 in parallel, an output shaft 4 is arranged at the side of the end part of the transmission shaft 3 in parallel, the rotor 2 is in transmission fit with a self-locking mechanism 7, the self-locking mechanism 7 is in tooth transmission fit with the transmission shaft 3 through a delay gear 8, and the transmission shaft 3 is in transmission fit with the output shaft 4 through a gear. That is, the motor body 1 finally outputs power through the output shaft 4, and in the embodiment of the present application, the winding drum 6 is mounted on the output shaft 4, and the winding rope is wound on the winding drum 6 to be wound and unwound under the control of the motor.
In the embodiment of the application, the self-locking mechanism 7 is arranged around the transmission shaft 3 and is also used for locking and fixing the transmission shaft 3, but the self-locking mechanism 7 is mainly used for reverse self-locking, namely, the self-locking direction is opposite to the driving direction of the motor body 1, so that the aim is to prevent the motor body 1 from working once the winch drum 6 is stopped, when the winch drum 6 is reversely rotated by external force, the self-locking mechanism 7 locks the transmission shaft 3 to prevent the transmission shaft from reversely rotating, and the self-locking mechanism 7 cannot interfere the normal driving of the motor body 1.
In the embodiment of the application, a winding frame 5 is installed beside the motor body 1, the output shaft 4 and the winding drum 6 are rotatably installed on the winding frame 5, an installation space is further formed on the winding drum 6, the ends of the rotor 2 and the output shaft 4 of the motor body 1 penetrate into the installation space, and the transmission shaft 3 and the self-locking mechanism 7 are installed in the installation space.
In the embodiment of the application, the rotor 2 of the motor body 1 rotates to drive the transmission shaft 3 to rotate, the transmission shaft 3 drives the output shaft 4 to rotate, and then the winding drum 6 rotates, so that the effect of winding and unwinding the traction rope is achieved. The self-locking mechanism 7 is a rotating fit assembly which is arranged around the transmission shaft 3 and used as the rotor 2 and the transmission shaft 3, and the self-locking mechanism 7 has the effect that when the rotor 2 drives the transmission shaft 3, the rotor 2 can synchronously and stably drive the transmission shaft 3 to rotate no matter whether the rotor 2 rotates positively or negatively, once the motor body 1 stops working, when the winch drum 6 rotates reversely under the action of external force, the self-locking mechanism 7 locks the transmission shaft 3 in a locking manner to prevent the reverse rotation of the transmission shaft 3. The self-locking mechanism 7 is compatible with the existing mechanism which is provided with the motor body 1 and is used for keeping the coil in a power-on attraction state by utilizing the auxiliary contact of the contactor, and can be used on a motor without self-locking, and the self-locking mechanism 7 acts on the outside of the motor, cannot be influenced by the conditions of the load, the rotating speed, the torque and the like of the motor, and can avoid burning out of the motor body 1. Moreover, the winch can adapt to the severe and changing environment when being used outdoors by the self-locking mechanism 7.
In the embodiment of the application, the self-locking mechanism 7 comprises a driven shaft 71, a ratchet wheel 72, a pawl 73, an elastic transmission piece 74 and the like, wherein in the implementation, two driven shafts 71 are arranged on two sides of the transmission shaft 3 in parallel, the two driven shafts 71 are in tooth transmission fit with the transmission shaft 3 through a delay gear 8, and the transmission shaft 3 is driven by the driven shafts 71; the ratchet wheel 72 is arranged on the transmission shaft 3, the elastic transmission member 74 is arranged on the side edge of the driven shaft 71 and is in tooth transmission fit, the pawl 73 is supported by the middle part and is respectively connected with the ratchet wheel 72 and the elastic transmission member 74, and the two driven shafts 71 are in tooth transmission fit with the rotor 2 so as to realize synchronous and same-direction rotation of the two driven shafts 71.
In the embodiment of the present application, the delay gears 8 are mounted on the driven shaft 71, and both delay gears 8 are used for being in tooth transmission cooperation with the transmission shaft 3 to control the rotation of the transmission shaft 3; the retard gear 8 is composed of an internal gear 81 and an external gear 82, the internal gear 81 is mounted on the driven shaft 71 to rotate in synchronization therewith, the external gear 82 is sleeved on the internal gear 81, a first tooth 83 is provided on the inner side of the external gear 82, a second tooth 84 is provided on the surface of the internal gear 81, and the first tooth 83 is meshed with the second tooth 84. In practice, the first teeth 83 and the second teeth 84 are symmetrically distributed. The driven shaft 71 is meshed with the external gear 82 through a gear, and when the first tooth 83 is contacted with the second tooth 84 and meshed, the external gear 82 drives the internal gear 81 to rotate, so that delay occurs in rotation of the transmission shaft 3 each time the driven shaft 71 switches the rotation direction, the delay time is used for turning self-locking adjustment of the self-locking mechanism 7, stable operation is ensured, and locking is avoided.
Further, an elastic transmission member 74 is installed at the side of the driven shaft 71 and is in driving engagement with the teeth thereof, the pawl 73 is supported at one end thereof by the middle portion for engagement with the ratchet wheel 72, and the other end thereof is connected to the elastic transmission member 74, and the elastic transmission member 74 is driven by the driven shaft 71 for controlling engagement and disengagement of the ratchet wheel 72 and the pawl 73. The elastic transmission member 74 includes a toothed plate 741, a rack 742, a pull rod 743, etc., the toothed plate 741 is slidably mounted on a bracket 744 for being in toothed transmission engagement with the driven shaft 71, two ends of the toothed plate 741 are connected with the rack 742 via elastic members, the pull rod 743 is fixed on the toothed plate 741 for being connected with the pawl 73, a chute for mounting the toothed plate 741 is provided on the bracket 744, the chute is used for limiting the moving distance of the toothed plate 741, and the toothed plate 741 controlled to move to the end of the chute is in toothed transmission engagement with the driven shaft 71 via the rack 742.
In operation, driven shaft 71 is driven to rotate by rotor 2, and driven shaft 71 drives toothed plate 741 to move so that pawl 73 is engaged with or disengaged from ratchet wheel 72. Then, the internal gear 81 and the external gear 82 of the delay gear 8 are meshed to start to drive the transmission shaft 3 to rotate, only one group of the ratchet wheel 72 and the pawl 73 is contacted with each other in the rotation process of the transmission shaft 3, and the ratchet wheel 72 and the pawl 73 cannot be meshed and locked when the transmission shaft 3 rotates. So that the transmission shaft 3 is not affected when being driven to rotate; in addition, once the motor is stopped, the transmission shaft 3 is immediately locked by external force reverse rotation, so that the motor can be protected, and a good car sliding effect can be achieved during outdoor traction and rescue.
Further, the elastic transmission member 74 is symmetrically disposed, so that when the two driven shafts 71 are rotated in the same direction in synchronization, the moving directions of the two toothed plates 741 are opposite, and the deflection angles of the two pawls 73 are opposite, that is, when one set of ratchet wheels 72 and pawls 73 are engaged, the other set of ratchet wheels 72 and pawls 73 are disengaged.
Further, the two ends of the toothed plate 741 are elastically connected with the rack 742, the toothed plate 741 and the rack 742 can be meshed with the gear on the driven shaft 71, the gear on the driven shaft 71 is meshed with the toothed plate 741 when the driven shaft 71 is started, the toothed plate 741 is continuously meshed with the rack 742 after moving to the end of the chute, and the rack 742 not only avoids being blocked when the driven shaft 71 rotates, but also can drive the toothed plate 741 to move reversely after reversing.
One end of the pull rod 743 is fixed to the toothed plate 741 to move therewith, and the other end is movably connected to the end of the pawl 73, and the pawl 73 is controlled to move by the pull rod 743.
The self-locking mechanism 7 of the invention can be used as a spare component of the rotor 2 driving transmission shaft 3 to cope with special environment protection motors, can also be directly used for daily use,
in the invention, in order to ensure good self-locking effect and good service life, a plurality of groups of ratchet wheels 72 and pawls 73 can be arranged to share pressure.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.
Claims (10)
1. A motor structure of a winch, comprising:
a motor body (1) having a rotor (2);
a transmission shaft (3) which is arranged at one side of the rotor (2) and is in transmission fit with the rotor;
the output shaft (4) is used for being in gear transmission fit with the transmission shaft (3);
the self-locking mechanism (7) is arranged around the transmission shaft (3), the rotor (2) is in transmission fit with the self-locking mechanism (7), and the self-locking mechanism (7) is in tooth transmission fit with the transmission shaft (3) through the delay gear (8);
the self-locking mechanism (7) is used for reversely self-locking the transmission shaft (3), and the delay gear (8) is used for delaying the driving of the transmission shaft (3) when the rotor (2) is switched and turned so as to change the self-locking direction of the self-locking mechanism (7).
2. A winch motor structure according to claim 1, wherein: the self-locking mechanism (7) comprises driven shafts (71) arranged on two sides of the transmission shaft (3), the delay gears (8) are arranged on the driven shafts (71), the two delay gears (8) are both used for being in tooth transmission fit with the transmission shaft (3), and the rotor (2) is in tooth transmission fit with the driven shafts (71) so as to control the two driven shafts (71) to synchronously rotate.
3. A winch motor structure according to claim 2, characterized in that: the self-locking mechanism (7) comprises a ratchet wheel (72) and a pawl (73), and the two ratchet wheels (72) are reversely arranged on the transmission shaft (3) and meshed with the pawl (73) respectively;
only one set of ratchet wheels (72) and pawls (73) are in contact with each other when the transmission shaft (3) rotates.
4. A winch motor structure according to claim 3, characterized in that: the self-locking mechanism (7) comprises an elastic transmission part (74), the elastic transmission part (74) is arranged on the side edge of the driven shaft (71) and is in transmission fit with teeth of the driven shaft, one end of the pawl (73) is supported by the middle part to be meshed with the ratchet wheel (72), and the other end of the pawl is connected with the elastic transmission part (74).
5. The winch motor structure according to claim 4, wherein: the elastic transmission member (74) is driven by the driven shaft (71) and used for controlling engagement and disengagement of the ratchet wheel (72) and the pawl (73), and the two elastic transmission members (74) rotate in opposite directions.
6. A winch motor structure according to claim 5, wherein: the elastic transmission piece (74) comprises a toothed plate (741), a rack (742) and a pull rod (743), wherein the toothed plate (741) is slidably arranged on a bracket (744) and is used for being in tooth transmission fit with the driven shaft (71), two ends of the toothed plate (741) are connected with the rack (742) through elastic pieces, and the pull rod (743) is fixed on the toothed plate (741) and is used for being connected with the pawl (73).
7. The winch motor structure of claim 6, wherein: the rack (744) is provided with a chute for installing the toothed plate (741), the chute is used for limiting the moving distance of the toothed plate (741), and the toothed plate (741) controlled to move to the end part of the chute is in tooth transmission fit with the driven shaft (71) through the rack (742).
8. The winch motor structure of claim 7, wherein: the delay gear (8) comprises an inner gear (81) and an outer gear (82), wherein the inner gear (81) is arranged on the driven shaft (71) and rotates synchronously with the inner gear, the outer gear (82) is sleeved on the inner gear (81), a first tooth (83) is arranged on the inner side of the outer gear (82), a second tooth (84) is arranged on the surface of the inner gear (81), and the first tooth (83) is meshed with the second tooth (84).
9. A winch motor structure according to claim 8, wherein: the number of the first teeth (83) and the second teeth (84) is not more than two.
10. A winch motor structure according to claim 9, wherein: the output shaft (4) is used for installing a winding drum (6) for winding the rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410221015.4A CN117811277B (en) | 2024-02-28 | 2024-02-28 | Motor structure of winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410221015.4A CN117811277B (en) | 2024-02-28 | 2024-02-28 | Motor structure of winch |
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| CN117811277A true CN117811277A (en) | 2024-04-02 |
| CN117811277B CN117811277B (en) | 2024-05-24 |
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| CN202410221015.4A Active CN117811277B (en) | 2024-02-28 | 2024-02-28 | Motor structure of winch |
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| CN117811277B (en) | 2024-05-24 |
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