An electric winch

Abstract

The utility model belongs to capstan technology field provides a kind of electric capstan, comprising: support frame, rotatably arranged with drum thereon;Driving part, it is set on support frame;Reduction assembly, it includes oppositely arranged first reduction part and second reduction part, and connecting the shaft between first reduction part and second reduction part, first reduction part is arranged in the one end of drum along the axial direction, and is connected between the output end of driving part and shaft, second reduction part is arranged in the other end of drum along the axial direction;Transmission part, it is movably arranged between second reduction part and drum.Compared with prior art, the utility model is through setting reduction part in the both ends of drum and being connected by shaft, realizes bilateral power input, improves the stress uniformity of drum, improves structural stability and service life;At the same time, through movable transmission part, the switching of electric and manual mode is realized, and the rope can be quickly released in manual mode, and electric energy is saved.

Description

Technical Field

[0001] This utility model belongs to the field of winch technology, specifically relating to an electric winch. Background Technology

[0002] Electric winches, as important traction and deployment devices, are widely used in rescue, engineering operations, off-road extrication, and marine applications, primarily for the automatic winding and unwinding of ropes. A typical electric winch usually includes a support frame, a drum rotatably mounted on the support frame, a drive unit (such as a DC motor), and a reduction gear mechanism connecting the drive unit and the drum. During operation, the drive unit transmits power to the drum through the reduction gear mechanism, thereby rotating the drum and enabling the winding and unwinding of the rope.

[0003] However, existing electric winches still have many shortcomings in terms of structural design and performance. First, the reduction gear mechanism of most traditional electric winches is concentrated at one end of the drum, and the power is driven to rotate the drum through a single-sided input. This single-sided transmission structure not only leads to uneven force on the drum, making it prone to flexing deformation and off-center loading under load, affecting the smoothness of operation and service life, but also requires increasing the drum shaft diameter or strengthening the support structure to ensure the overall structural strength, thus significantly increasing the overall size and weight of the equipment, which is not conducive to the miniaturization and lightweight development of the equipment.

[0004] Secondly, during rope release, existing reduction mechanisms (especially planetary gear reducers) have a self-locking characteristic, making free rope release impossible. Users must perform "electric release" by reversing the motor, which is not only slow and sluggish, making it difficult to meet the rapid rope-laying needs in emergency situations, but also consumes a large amount of electrical energy due to continuous reverse operation. For portable electric winches powered by built-in batteries, frequent electric rope releases significantly shorten battery life, reduce the equipment's continuous operating capability, and limit its application in environments without external power.

[0005] Furthermore, existing electric winches commonly suffer from uneven rope distribution during the winding process. Due to the lack of an effective rope guiding mechanism, as the rope continues to wind, if it cannot be promptly moved to the other side when it reaches the axial edge of the drum, it is prone to repeated overlapping and entanglement at the edge, resulting in "rope piling" or "rope jamming." At this point, severe friction occurs between the rope and the drum end, support frame, or other components, which not only increases traction resistance but may also lead to rope wear, knotting, or even jamming, seriously affecting winding efficiency and operational safety. Simultaneously, localized concentrated entanglement of the rope can also cause eccentric load on the drum, exacerbating mechanical vibration and structural fatigue.

[0006] More importantly, most existing electric winches lack a reliable manual quick-release function. In the event of a power outage, motor failure, or emergency release, users cannot easily release the locking state of the reduction mechanism to allow the drum to enter free rotation mode, resulting in the winch rope not being released quickly. This severely restricts the equipment's emergency response capability and operational flexibility.

[0007] In summary, existing electric winches still have significant shortcomings in terms of transmission layout, energy efficiency, rope laying performance, and emergency operation. There is an urgent need for a new type of electric winch that is structurally sound, flexible in operation, has efficient rope laying function, and supports electric / manual mode switching, in order to improve the overall performance of the equipment and the user experience. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide an electric winch in light of the current state of the technology.

[0009] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: An electric winch is provided for winding and unwinding ropes, the electric winch comprising:

[0010] A support frame on which a roller is rotatably mounted, and one end of the twisted rope is wound around the roller;

[0011] A driving component, which is mounted on the support frame;

[0012] A speed reduction assembly includes a first speed reduction component and a second speed reduction component disposed opposite to each other, and a rotating shaft connected between the first speed reduction component and the second speed reduction component. The first speed reduction component is disposed at one end of the roller along the axial direction and connected between the output end of the drive component and the rotating shaft. The second speed reduction component is disposed at the other end of the roller along the axial direction.

[0013] A transmission component, which is movably disposed between the second reduction component and the drum along the axial direction of the drum, is used to transmit the power of the second reduction component to the drum;

[0014] The electric winch has both an electric mode and a manual mode; wherein...

[0015] When in electric mode, one end of the transmission component is connected to the drum drive and the other end is connected to the second reduction component, so that when the drive component is working, it can drive the drum to rotate for winding or unwinding of the rope.

[0016] When in manual mode, one end of the transmission component is disconnected from the second reduction component, so that the drum is in a free state, allowing the rope to be released quickly relative to the drum.

[0017] In the aforementioned electric winch, the drum is provided with a receiving cavity, and a first elastic element is provided in the receiving cavity. One end of the first elastic element directly or indirectly abuts against the end of the transmission element, for pushing the transmission element to drive the transmission element to connect with the second reduction element.

[0018] In the aforementioned electric winch, a transmission part is provided on the rotating shaft. The transmission part is connected to the second reduction component for transmitting power from the rotating shaft to the second reduction component. When the rotating shaft moves axially, it is used to push the transmission component and the second reduction component to disengage.

[0019] In the aforementioned electric winch, the second reduction component is a planetary gear set, comprising:

[0020] An end cap, which is fixed to the support frame and forms an installation space with the support frame;

[0021] A first internal gear ring, which is fixed to the end cap and located within the mounting space;

[0022] A gear carrier is located within the mounting space, and at least three planetary gears are evenly distributed on the gear carrier, with the outer sides of the at least three planetary gears meshing with the first internal gear ring.

[0023] The second internal gear ring is rotatably disposed within the mounting space and meshes with the outer sides of at least three planetary gears. The transmission member is provided with a first external gear ring at one end facing the second reduction member. The first external gear ring is movably meshed with the second internal gear ring. The transmission part on the rotating shaft is the second external gear ring. The second external gear ring is located within the space formed by the at least three planetary gears and meshes with at least three planetary gears.

[0024] When in the electric mode, the first external gear ring meshes with the second internal gear ring, and the first reducer transmits the output power of the drive member to at least three planetary gears through the rotating shaft. The at least three planetary gears transmit the power to the transmission member through the second internal gear ring, thereby driving the drum to rotate.

[0025] When in manual mode, the first external gear ring disengages from the second internal gear ring, and the roller is in a free state.

[0026] In one type of electric winch described above, a third internal gear ring is provided on the inner wall of the receiving cavity, and a first external gear ring is distributed along the axial direction of the transmission member on the entire outer side wall of the transmission member, and the first external gear ring meshes with the third internal gear ring, for driving the drum to rotate when the second internal gear ring drives the transmission member to rotate.

[0027] In one type of electric winch described above, a support base is provided on the end cover, and a push cover is movably provided on the support base. One end of the rotating shaft passes through the end cover and is fixedly connected to the push cover through a rolling element. The push cover is used to push the rotating shaft to move axially, so that the electric winch switches from the electric mode to the manual mode.

[0028] In the aforementioned electric winch, the support base is provided with a first sliding groove and a second sliding groove that are interconnected. The first sliding groove extends axially along the shaft, and the second sliding groove extends radially along the shaft, with a limiting part provided between them.

[0029] A limiting plate is fixedly provided on the push cover, and the end of the limiting plate is movably disposed in the first slide groove and the second slide groove;

[0030] When the limiting plate rotates from the first slide groove to the second slide groove and the end of the limiting plate abuts against the limiting part, it is used to push the transmission member to disengage from the second internal gear ring and keep the electric winch in the manual mode.

[0031] When the end of the limiting plate passes the limiting part in the second slide groove and rotates into the first slide groove and moves to a predetermined position in the first slide groove in a direction away from the second slide groove, it is used to drive the electric winch to switch from the manual mode to the electric mode.

[0032] In the aforementioned electric winch, the support frame is provided with a fixed shaft, a rotating shaft, and a pressure plate, and a limiting space is formed between the fixed shaft and the rotating shaft for the winch rope to pass through.

[0033] A roller is rotatably mounted on the fixed shaft. A second elastic element is provided between each end of the roller along the axial direction and the support frame. An annular groove is provided on the outer circumferential surface of the roller. The annular groove is used to limit the movement of the twisted rope.

[0034] One end of the pressure plate is rotatably mounted on the support frame, and a third elastic element is provided between the other end and the support frame; wherein...

[0035] The third elastic element is used to apply pre-pressure to the rope between the electric winch and the drum through the pressure plate when the electric winch winds up the rope, so that the rope is evenly arranged on the outer surface of the drum; when the electric winch winds up and unwinds the rope, the rope engages with the annular groove of the roller to reduce the frictional resistance between the rope and the support frame.

[0036] The second elastic element provides axial thrust to the roller as the rope winds toward its extreme position on the drum, so as to ensure that the rope is evenly distributed on the drum.

[0037] In the aforementioned electric winch, the first reduction component includes:

[0038] First gear;

[0039] The second gear is disposed at the output end of the drive member, and the outer diameter of the first gear is larger than the outer diameter of the second gear and the two mesh with each other.

[0040] A connecting pin is fixedly mounted on the first gear;

[0041] A connecting sleeve, one end of which is fixedly connected to the connecting pin, and one end of the rotating shaft is slidably inserted into the connecting sleeve.

[0042] The aforementioned electric winch also includes a housing, a battery assembly, a controller, and a display.

[0043] The battery assembly is electrically connected to the drive unit and is used to provide operating power to the drive unit;

[0044] The display is fixed to the outer surface of the housing;

[0045] The controller is electrically connected to the driver and the display respectively, and is used to control the operating status of the driver and to collect the operating current signal of the driver and transmit it to the display so that the display can display the operating current value of the driver in real time.

[0046] Compared with the prior art, the present invention has the following beneficial effects:

[0047] (1) By setting speed reduction components at both ends of the drum and connecting them with a rotating shaft, dual-side power input is achieved, which significantly improves the uniformity of the drum's force, reduces the risk of off-center loading and deflection, and enhances the structural stability and service life. At the same time, the electric and manual modes can be switched through movable transmission components. In manual mode, the winch can be released quickly, responding promptly and saving energy. This is conducive to improving the endurance of the built-in battery-powered equipment and enhancing the emergency operation performance of the equipment in emergency situations.

[0048] (2) The automatic reset function of the transmission component is realized through the first elastic element, which ensures the stability and reliability of the transmission connection in electric mode and effectively avoids the loosening of the connection due to vibration or load fluctuation. This design not only simplifies the operation process and improves the automation level of the system, but also enhances the safety and stability of the electric winch under complex working conditions.

[0049] (3) The transmission part on the rotating shaft is not only used to transmit power to the second reduction component, but also has a pushing function. When the rotating shaft moves axially, its transmission part can directly push the transmission component, causing it to disengage from the second reduction component. Attached Figure Description

[0050] Figure 1 This is a perspective view of an electric winch according to this utility model.

[0051] Figure 2 yes Figure 1 Floor plan.

[0052] Figure 3 yes Figure 2 Sectional view along the AA direction.

[0053] Figure 4 yes Figure 1 A 3D view omitting the casing and battery assembly.

[0054] Figure 5 yes Figure 4 A view from another direction.

[0055] Figure 6 It is a three-dimensional view of the connection between the drive component, the first reduction component, and the rotating shaft.

[0056] Figure 7 It is a 3D view of the connection between the rotating shaft and the second reduction gear.

[0057] Figure 8 yes Figure 7 A magnified view of a section at point B in the middle.

[0058] Figure 9 yes Figure 6 Floor plan.

[0059] Figure 10 yes Figure 9 Sectional view at point CC.

[0060] Figure 11 It is a partial sectional view of the connection between the shaft, transmission components and the roller.

[0061] In the diagram, 100 is the outer casing; 200 is the support frame; 210 is the fixed shaft; 220 is the rotating shaft; 230 is the roller; 231 is the annular groove; 240 is the second elastic element; 250 is the pressure plate; 260 is the third elastic element; 300 is the driving element; 400 is the reduction assembly; 410 is the first reduction element; 411 is the first gear; 412 is the second gear; 413 is the connecting pin; 414 is the connecting sleeve; 420 is the second reduction element; 421 is the end cover; and 422 is the first internal gear. 423. Gear carrier; 424. Planetary gear; 425. Second internal gear ring; 426. Support base; 426a. First slide groove; 426b. Second slide groove; 426c. Limiting part; 427. Push cover; 428. Rolling element; 429. Limiting plate; 430. Rotating shaft; 440. Transmission part; 500. Transmission element; 510. First external gear ring; 600. Roller; 610. Receiving cavity; 620. Third internal gear ring; 700. Battery assembly; 800. Winding rope. Detailed Implementation

[0062] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0063] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0064] like Figures 1 to 11 As shown, an electric winch of this solution is used for winding and unwinding rope. The electric winch includes: a support frame 200, a drum 600, a drive component 300, a reduction gear assembly 400, and a transmission component 500.

[0065] The roller 600 is rotatably mounted on the support frame 200, serving as the winding and unwinding structure for the rope 800, with one end of the rope 800 wound around the roller 600. When the roller 600 rotates, the rope 800 is wound or unwound. One end of the rope 800 is equipped with a hook for pulling the object during winding and unwinding.

[0066] The drive component 300 is mounted on the support frame 200, and is preferably a motor, serving as the power source for the roller 600. The drive component 300 and the support frame 200 can be fixed together by means of threaded connection or other methods.

[0067] The deceleration assembly 400 is used to transmit the output power of the drive unit 300 to the drum 600, while simultaneously reducing speed and increasing torque, making the winding and unwinding operation of the rope 800 smoother.

[0068] The reduction assembly 400 includes a first reduction element 410 and a second reduction element 420 disposed opposite to each other, and a rotating shaft 430 connecting the two. The first reduction element 410 is located at one end along the axis of the roller 600 and is connected between the output end of the drive element 300 and the rotating shaft 430; the second reduction element 420 is located at the other end of the roller 600. The rotating shaft 430 serves as the power transmission component between the first reduction element 410 and the second reduction element 420, allowing power to be transmitted sequentially through the first reduction element 410, the rotating shaft 430, and the second reduction element 420 to the roller 600.

[0069] By setting the first reducer 410 and the second reducer 420 at the two ends of the axial direction of the drum 600, the overall layout of the electric winch is optimized, making the structure more compact and reasonable.

[0070] The transmission component 500 is movably disposed between the second reduction component 420 and the drum 600 along the axis of the drum 600, and is used to transmit the power of the second reduction component 420 to the drum 600. Its movable arrangement realizes the on / off control of the transmission connection between the second reduction component 420 and the drum 600.

[0071] The electric winch has both electric and manual modes:

[0072] When in electric mode, one end of the transmission component 500 is connected to the drum 600 and the other end is connected to the second reducer 420. When the drive component 300 is working, it drives the drum 600 to rotate, thereby realizing the winding or unwinding of the rope 800.

[0073] When in manual mode, the transmission component 500 is disconnected from the second reduction component 420, allowing the drum 600 to be in a free state. The rope 800 can be quickly released relative to the drum 600 without the need for a motor.

[0074] This solution achieves dual-sided power input by setting speed reduction components at both ends of the roller 600 and connecting them with the rotating shaft 430. This significantly improves the uniformity of force distribution on the roller 600, reduces the risk of off-center loading and deflection, and enhances structural stability and service life.

[0075] Meanwhile, the movable transmission component 500 enables switching between electric and manual modes. In manual mode, the winch 800 can be released quickly, providing timely response and saving energy. This helps improve the battery life of the built-in battery-powered equipment and enhances the emergency operation performance of the equipment in emergency situations.

[0076] Furthermore, the roller 600 is provided with a receiving cavity 610, and a first elastic member is installed in the receiving cavity 610, one end of which is directly or indirectly pressed against the end of the transmission member 500.

[0077] This structure is designed to automatically push the transmission component 500 back to its original position in electric mode, so that it can stably engage with the second reduction component 420 and ensure reliable power transmission.

[0078] When the first elastic element and the transmission element 500 are directly pressed together, refer to 3. At this time, one end of the transmission element 500 is connected to the drum 600, and the other end is engaged with the second reduction element 420. The electric winch is in electric working state.

[0079] Power is transmitted to the transmission component 500 via the first reducer 410, the rotating shaft 430, and the second reducer 420, ultimately driving the drum 600 to rotate, thereby enabling the winding or unwinding of the rope 800.

[0080] When it is necessary to switch to manual mode, the transmission component 500 is moved to the right side of the figure by external operation (such as pushing the rotating shaft 430), squeezing the first elastic component until it disengages from the second reduction component 420.

[0081] At this point, the power transmission path is cut off, and the power of the drive component 300 is only transmitted to the second reduction component 420 and cannot continue to be output. The drum 600 enters a free rotation state, and the winch 800 can be released quickly.

[0082] When manual operation ends and external force is removed, the first elastic element recovers its deformation under its own elastic force, pushing the transmission element 500 to move to the left again until its end engages with the second reduction element 420 again, the power transmission path is restored, and the electric winch automatically switches back to electric mode.

[0083] When the first elastic element and the transmission element 500 are indirectly abutted, an indirect abutment between them can be achieved by adding a shim between the first elastic element and the transmission element 500.

[0084] The shim can be used to compensate for the axial dimension of the transmission component 500—for example, when the axial length of the transmission component 500 is insufficient due to machining errors, a shim can be added between the first elastic element and the transmission component 500 for compensation.

[0085] The gasket can be freely placed between the two, or it can be fixed to the first elastic element or transmission element 500 by adhesive or welding.

[0086] This design utilizes a first elastic element to achieve the automatic reset function of the transmission component 500, ensuring the stability and reliability of the transmission connection in electric mode and effectively preventing loosening of the connection due to vibration or load fluctuations. This design not only simplifies the operation process and improves the automation level of the system, but also enhances the operational safety and stability of the electric winch under complex working conditions.

[0087] Furthermore, a transmission part 440 is provided on the rotating shaft 430. The transmission part 440 is connected to the second reduction member 420 for transmitting the power of the rotating shaft 430 to the second reduction member 420. When the rotating shaft 430 moves axially, it is used to push the transmission member 500 and the second reduction member 420 to disengage.

[0088] The transmission unit 440 provided on the rotating shaft 430 is not only used to transmit power to the second reduction component 420, but also has a pushing function.

[0089] Specifically, when the rotating shaft 430 moves axially, its transmission part 440 can directly or indirectly (for example, by adding a shim or other component between the two) push the transmission component 500 to disengage it from the second reduction component 420.

[0090] This design integrates power transmission and mode switching functions into the 430 shaft structure, simplifying the switching mechanism, reducing additional drive components, and making the switching process from electric mode to manual mode more direct and efficient, while improving structural compactness and response speed.

[0091] It should be noted that the end of the transmission component 500 facing the roller 600 is provided with a first elastic element, which is used to push the transmission component 500 and the second reduction component 420 to achieve transmission connection.

[0092] However, the elastic force of the first elastic element is precisely designed and calculated so that, in electric mode, its thrust on the transmission element 500 will not cause the transmission element 500 to rigidly abut against the transmission part 440 on the rotating shaft 430.

[0093] Therefore, the friction between the transmission part 440 and the transmission member 500 is small and insufficient to directly drive the transmission member 500 to rotate without passing through the second reduction member 420.

[0094] This design ensures that the power of the electric winch must be transmitted sequentially through the first reducer 410, the shaft 430, and the second reducer 420 to the transmission component 500, ultimately driving the drum 600 to rotate, thus guaranteeing the accuracy and reliability of the power transmission path.

[0095] Furthermore, the second reduction component 420 is a planetary gear set 424, including:

[0096] End cap 421, which is fixed on support frame 200 and forms an installation space with support frame 200;

[0097] The first internal gear ring 422 is fixed on the end cap 421 and located in the mounting space;

[0098] A gear carrier 423 is located within the installation space. At least three planetary gears 424 are evenly distributed on the gear carrier 423, and the outer sides of the at least three planetary gears 424 mesh with the first internal gear ring 422.

[0099] The second internal gear ring 425 is rotatably disposed in the installation space and meshes with the outer sides of at least three planetary gears 424. The transmission member 500 is provided with a first external gear ring 510 at one end facing the second reduction member 420. The first external gear ring 510 is movably meshed with the second internal gear ring 425. The transmission part 440 on the rotating shaft 430 is the second external gear ring. The second external gear ring is located in the space formed by the at least three planetary gears 424 and meshes with at least three planetary gears 424.

[0100] When in electric mode, the first external gear ring 510 meshes with the second internal gear ring 425. The first reduction component 410 transmits the output power of the drive component 300 to at least three planetary gears 424 through the rotating shaft 430. The at least three planetary gears 424 transmit the power to the transmission component 500 through the second internal gear ring 425, which then drives the roller 600 to rotate.

[0101] When in manual mode, the first external gear ring 510 disengages from the second internal gear ring 425, and the roller 600 is in a free state.

[0102] The planetary gear set 424 is used as the second reduction component 420, which has a compact structure, high transmission efficiency, and strong load-bearing capacity. By setting a rotatable second internal gear ring 425 and making it mesh with the first external gear ring 510 on the transmission component 500, controllable power transmission is achieved.

[0103] In electric mode, power is transmitted to the second internal gear ring 425 via planetary gear 424, which then drives the transmission component 500 to rotate. The transmission path is clear and stable.

[0104] In manual mode, the first outer gear ring 510 disengages from the second inner gear ring 425, and the roller 600 rotates freely.

[0105] The planetary gear 424 structure, combined with a disengaged meshing design, ensures both powerful traction output and fast, reliable mode switching, balancing high load performance with rapid release requirements.

[0106] A third internal gear ring 620 is provided on the inner wall of the receiving cavity 610. The first external gear ring 510 is distributed along the axial direction of the transmission member 500 on the entire outer side wall of the transmission member 500, and the first external gear ring 510 meshes with the third internal gear ring 620 to drive the roller 600 to rotate when the second internal gear ring 425 drives the transmission member 500 to rotate.

[0107] The third internal gear ring 620 can be integrally formed with the inner wall of the receiving cavity 610, or an independent gear ring can be fixed to the inner wall of the receiving cavity 610 by welding or gluing.

[0108] In this design, a third internal gear ring 620 is provided on the inner wall of the receiving cavity 610, and it meshes with the first external gear ring 510 on the transmission component 500.

[0109] When the transmission component 500 rotates under the drive of the second internal gear ring 425, the torque is transmitted to the roller 600 through the meshing of the first external gear ring 510 and the third internal gear ring 620.

[0110] This structure enables a stable and efficient power connection between the transmission component 500 and the roller 600, ensuring reliable traction output.

[0111] Meanwhile, since the transmission component 500 and the drum 600 are driven by meshing internal and external gear rings, this connection method allows the transmission component 500 to move relative to each other along the axial direction while transmitting torque. It can accommodate the axial displacement required during the switching between electric mode and manual mode, effectively improving the system's fault tolerance and operational stability.

[0112] It is worth mentioning that a support base 426 is provided on the end cover 421, and a push cover 427 is movably provided on the support base 426. One end of the rotating shaft 430 passes through the end cover 421 and is fixedly connected to the push cover 427 through the rolling element 428. The push cover 427 is used to push the rotating shaft 430 to move axially so that the electric winch can switch from electric mode to manual mode.

[0113] Reference Figure 3 At this time, the electric winch is in electric mode.

[0114] When a thrust is applied to the push cover 427 to the right of the figure, the push cover 427 drives the rotating shaft 430 to move axially to the right via the rolling element 428.

[0115] During the movement of the rotating shaft 430, the transmission part 440 (second external gear ring) on ​​it pushes the transmission component 500, causing it to disengage from the second internal gear ring 425 in the second reduction component 420, thereby cutting off the power transmission path, switching the electric winch to manual mode, and allowing the drum 600 to enter a free rotation state.

[0116] In this solution, a support base 426 is provided on the end cover 421, and a movable push cover 427 is installed on the support base 426. One end of the rotating shaft 430 is fixedly connected to the push cover 427 through a rolling element 428.

[0117] Users can switch modes by directly pushing the cover 427 to drive the rotating shaft 430 to move axially.

[0118] This design provides a simple and intuitive manual switching method that does not rely on electrical control. It is convenient and reliable to operate and is particularly suitable for the need to quickly release the winch 800 in case of power failure or emergency.

[0119] Preferably, the rolling element 428 can be a bearing sleeved on the outside of the rotating shaft 430, or a roller, or other hollow columnar structure with rolling function.

[0120] The support base 426 is provided with a first slide groove 426a and a second slide groove 426b that are interconnected. The first slide groove 426a extends along the axial direction of the rotating shaft 430, and the second slide groove 426b extends along the radial direction of the rotating shaft 430. A limiting part 426c is provided between the two.

[0121] A limiting plate 429 is fixedly installed on the push cover 427, and the end of the limiting plate 429 is movably disposed in the first slide groove 426a and the second slide groove 426b;

[0122] When the limiting plate 429 rotates from the first slide groove 426a to the second slide groove 426b and the end of the limiting plate 429 abuts against the limiting part 426c, it is used to push the transmission member 500 to disengage from the second internal gear ring 425 and keep the electric winch in manual mode.

[0123] When the end of the limiting plate 429 passes the limiting part 426c in the second slide groove 426b and rotates into the first slide groove 426a, and moves to a predetermined position in the first slide groove 426a in a direction away from the second slide groove 426b, it is used to drive the electric winch to switch from manual mode to electric mode.

[0124] The combined design of the first slide groove 426a and the second slide groove 426b, together with the limiting plate 429 and the limiting part 426c, forms a locking mechanism of "rotation + axial movement".

[0125] When the limiting plate 429 enters the second slide groove 426b and abuts against the limiting part 426c, the push cover 427 is locked in the starting position of axial movement, ensuring that the transmission component 500 is completely disengaged and the electric winch is stably kept in manual mode to prevent misoperation.

[0126] When the limiting plate 429 passes the limiting part 426c and enters the first slide groove 426a, the push cover 427 can move axially to reset, realizing the switch from manual mode to electric mode.

[0127] This structure enables mechanical self-locking in manual mode, improving safety and preventing accidental reversion to electric mode during release.

[0128] The support frame 200 is provided with a fixed shaft 210, a rotating shaft 220 and a pressure plate 250, and a limiting space is formed between the fixed shaft 210 and the rotating shaft 220 for the winding rope 800 to pass through;

[0129] A roller 230 is rotatably mounted on the fixed shaft 210. A second elastic element 240 is provided between both ends of the roller 230 along the axial direction and the support frame 200. An annular groove 231 is provided on the outer circumferential surface of the roller 230, which is used to limit the movement of the rope.

[0130] One end of the pressure plate 250 is rotatably mounted on the support frame 200, and the other end is provided with a third elastic element 260 between it and the support frame 200; wherein,

[0131] The third elastic element 260 is used to apply pre-pressure to the rope 800 between the electric winch and the drum 600 through the pressure plate 250 when the electric winch winds up the rope 800, so that the rope 800 is evenly arranged on the outer surface of the drum 600.

[0132] When the electric winch winds up and down the rope 800, the rope 800 engages with the annular groove 231 of the roller 230 to reduce the frictional resistance between the rope 800 and the support frame 200.

[0133] The second elastic element 240 is used to provide axial thrust to the roller 230 when the rope 800 is wound toward the limit position on the drum 600, so as to ensure that the rope 800 is evenly distributed on the drum 600.

[0134] In this embodiment, the second elastic element 240 is preferably a compression spring, and the third elastic element 260 is preferably a torsion spring. One pin of the torsion spring is fixed on the support frame 200, and the other pin is pressed against the pressure plate 250.

[0135] Of course, the number of third elastic elements 260 can be one, two, or more. Preferably, when the number of third elastic elements 260 is one, refer to... Figure 5 The third elastic element 260 is pressed against both sides of one end of the pressure plate 250 as an integral structure.

[0136] By setting a fixed shaft 210, a rotating shaft 220 and a pressure plate 250 on the support frame 200, and installing a rotatable roller 230 on the fixed shaft 210, the rope 800 forms rolling contact with the roller 230 during the winding and unwinding process. Rolling friction replaces sliding friction, which effectively reduces the frictional resistance between the rope 800 and the support frame 200, reduces wear, and thus extends the service life of the rope.

[0137] In addition, the outer circumferential surface of the roller 230 is provided with an annular groove 231. This structure not only plays a lateral limiting role for the twisted rope 800 to prevent it from shifting and coming off during winding and unwinding, but also makes the damaged part easier to observe when the twisted rope 800 is damaged because it is clearly contrasted with the edge of the groove, which is conducive to timely detection of damage and improves the safety of use.

[0138] The pressure plate 250 is elastically connected to the support frame 200 via the third elastic element 260. During the winding process of the twisted rope 800, the pressure plate 250 applies appropriate pre-pressure to the twisted rope located between it and the drum 600, which helps to guide the twisted rope to be arranged tightly layer by layer, further ensuring that it is wound evenly and orderly on the surface of the drum 600.

[0139] Meanwhile, the second elastic element 240 provides continuous axial thrust to the roller 230, which drives the roller 230 to move the twisted rope 800 along the axial direction of the drum 600, achieving multi-layer uniform arrangement. This effectively avoids the phenomenon of the twisted rope accumulating, jamming, or knotting at the end of the drum, and significantly improves the rope winding efficiency and operational reliability.

[0140] The first reduction component 410 includes: a first gear 411; a second gear 412, which is disposed at the output end of the drive component 300, wherein the outer diameter of the first gear 411 is larger than the outer diameter of the second gear 412 and the two mesh with each other; a connecting pin 413, which is fixedly disposed on the first gear 411; and a connecting sleeve 414, one end of which is fixedly connected to the connecting pin 413, and one end of the rotating shaft 430 is slidably inserted into the connecting sleeve 414.

[0141] The first reduction component 410 uses a large-diameter first gear 411 meshing with a small-diameter second gear 412 to achieve initial speed reduction and torque increase, thereby improving transmission efficiency.

[0142] The structural design of the connecting pin 413 and the connecting sleeve 414 allows the rotating shaft 430 to slide within the connecting sleeve 414, thus accommodating the axial movement requirements of the rotating shaft 430.

[0143] This structure not only achieves reliable power transmission between the drive component 300 and the rotating shaft 430, but also provides a structural basis for subsequent mode switching through axial movement of the rotating shaft 430. It has both transmission and guiding functions, and is simple and reliable in structure.

[0144] This solution also includes a housing 100, a battery pack 700, a controller, and a display;

[0145] The battery assembly 700 is electrically connected to the drive unit 300 and is used to provide operating power to the drive unit 300.

[0146] The display is fixed to the outer surface of the housing 100;

[0147] The controller is electrically connected to the drive unit 300 and the display respectively. It is used to control the operating status of the drive unit 300 and to collect the operating current signal of the drive unit 300 and transmit it to the display so that the display can display the operating current value of the drive unit 300 in real time.

[0148] By integrating the battery assembly 700, controller, and display onto the housing 100 and electrically connecting them to the drive unit 300, the electric winch achieves independent power supply and intelligent control, eliminating the need for an external power source. This significantly improves the portability and flexibility of the equipment, making it particularly suitable for scenarios without a fixed power source, such as in the field or during rescue operations.

[0149] This integrated design simplifies equipment configuration, facilitates rapid deployment and operation, and enhances the product's practicality and market competitiveness. The display shows the real-time operating current value of the 300Ω drive unit, allowing users to monitor the equipment's operating status and improving ease of use and safety.

[0150] This solution discloses an electric winch with both electric and manual modes, aiming to solve the problems in the prior art, such as the bulky structure and uneven force caused by the single-sided arrangement of the deceleration mechanism, as well as the slow release speed, high power consumption and short battery life caused by the release of the winch 800 relying on the reverse rotation of the motor. At the same time, it improves the problems of the winch 800 being prone to deflection, rope stacking and jamming during the winding process.

[0151] The electric winch achieves dual-sided power input by setting a first reduction element 410 and a second reduction element 420 at both ends of the drum 600 and connecting them with a rotating shaft 430, which significantly improves the uniformity of force distribution and structural stability of the drum 600.

[0152] The core innovation lies in the design of an axially movable transmission component 500 and a corresponding switching mechanism, which allows the equipment to switch freely between electric and manual modes. In electric mode, the transmission component 500 connects the reduction gear 400 and the drum 600 to achieve efficient traction operations. In manual mode, the transmission component 500 automatically disengages, the drum 600 enters a free rotation state, and the winch 800 can be quickly released without consuming electrical energy, greatly improving emergency response capabilities and extending the battery life.

[0153] In addition, this solution also effectively reduces frictional resistance by setting up a guide mechanism with elastic pre-tensioned rollers 230, and continuously pushes the axial movement of the twisted rope 800 during the rope winding process, ensuring that it is evenly distributed on the surface of the drum 600, avoiding edge accumulation and rope jamming problems, and significantly improving the safety and reliability of use.

[0154] In summary, the electric winch provided in this solution integrates dual-side drive, rapid electric / manual switching, automatic rope laying, and built-in power supply. It has outstanding advantages such as reasonable structure, flexible operation, rapid release, energy efficiency, and uniform rope laying. It is especially suitable for outdoor rescue and vehicle extrication applications where portability, response speed, and endurance are required. It has good practical value and market prospects.

[0155] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0156] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0157] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An electric winch for winding and unwinding a rope, characterized in that, The electric winch includes: A support frame on which a roller is rotatably mounted, and one end of the twisted rope is wound around the roller; A driving component, which is mounted on the support frame; A speed reduction assembly includes a first speed reduction component and a second speed reduction component disposed opposite to each other, and a rotating shaft connected between the first speed reduction component and the second speed reduction component. The first speed reduction component is disposed at one end of the roller along the axial direction and connected between the output end of the drive component and the rotating shaft. The second speed reduction component is disposed at the other end of the roller along the axial direction. A transmission component, which is movably disposed between the second reduction component and the drum along the axial direction of the drum, is used to transmit the power of the second reduction component to the drum; The electric winch has both an electric mode and a manual mode; wherein... When in electric mode, one end of the transmission component is connected to the drum drive and the other end is connected to the second reduction component, so that when the drive component is working, it can drive the drum to rotate for winding or unwinding of the rope. When in manual mode, one end of the transmission component is disconnected from the second reduction component, so that the drum is in a free state, allowing the rope to be released quickly relative to the drum.

2. An electric winch as described in claim 1, characterized in that, The roller is provided with a receiving cavity, and a first elastic element is provided in the receiving cavity. One end of the first elastic element directly or indirectly abuts against the end of the transmission element, and is used to push the transmission element to connect with the second speed reduction element.

3. An electric winch as described in claim 1, characterized in that, The rotating shaft is provided with a transmission part, which is connected to the second speed reducer. The transmission part is used to transmit the power of the rotating shaft to the second speed reducer, and when the rotating shaft moves axially, it is used to push the transmission part and the second speed reducer to disengage.

4. An electric winch as described in claim 3, characterized in that, The second reduction component is a planetary gear set, comprising: An end cap, which is fixed to the support frame and forms an installation space with the support frame; A first internal gear ring, which is fixed to the end cap and located within the mounting space; A gear carrier is located within the mounting space, and at least three planetary gears are evenly distributed on the gear carrier, with the outer sides of the at least three planetary gears meshing with the first internal gear ring. The second internal gear ring is rotatably disposed within the mounting space and meshes with the outer sides of at least three planetary gears. The transmission member is provided with a first external gear ring at one end facing the second reduction member. The first external gear ring is movably meshed with the second internal gear ring. The transmission part on the rotating shaft is the second external gear ring. The second external gear ring is located within the space formed by the at least three planetary gears and meshes with at least three planetary gears. When in the electric mode, the first external gear ring meshes with the second internal gear ring, and the first reducer transmits the output power of the drive member to at least three planetary gears through the rotating shaft. The at least three planetary gears transmit the power to the transmission member through the second internal gear ring, thereby driving the drum to rotate. When in manual mode, the first external gear ring disengages from the second internal gear ring, and the roller is in a free state.

5. An electric winch as described in claim 4, characterized in that, A third internal gear ring is provided on the inner wall of the receiving cavity, and the first external gear ring is distributed along the axial direction of the transmission member on the entire outer side wall of the transmission member. The first external gear ring meshes with the third internal gear ring and is used to drive the roller to rotate when the second internal gear ring drives the transmission member to rotate.

6. An electric winch as described in claim 4, characterized in that, The end cap is provided with a support base, and a push cover is movably disposed on the support base. One end of the rotating shaft passes through the end cap and is fixedly connected to the push cover through a rolling element. The push cover is used to push the rotating shaft to move axially, so that the electric winch switches from the electric mode to the manual mode.

7. An electric winch as described in claim 6, characterized in that, The support base is provided with a first sliding groove and a second sliding groove that are interconnected. The first sliding groove extends along the axial direction of the rotating shaft, and the second sliding groove extends along the radial direction of the rotating shaft. A limiting part is provided between the two. A limiting plate is fixedly provided on the push cover, and the end of the limiting plate is movably disposed in the first slide groove and the second slide groove; When the limiting plate rotates from the first slide groove to the second slide groove and the end of the limiting plate abuts against the limiting part, it is used to push the transmission member to disengage from the second internal gear ring and keep the electric winch in the manual mode. When the end of the limiting plate passes the limiting part in the second slide groove and rotates into the first slide groove and moves to a predetermined position in the first slide groove in a direction away from the second slide groove, it is used to drive the electric winch to switch from the manual mode to the electric mode.

8. An electric winch as described in claim 1, characterized in that, The support frame is provided with a fixed shaft, a rotating shaft and a pressure plate, and a limiting space is formed between the fixed shaft and the rotating shaft for the winding rope to pass through; A roller is rotatably mounted on the fixed shaft. A second elastic element is provided between each end of the roller along the axial direction and the support frame. An annular groove is provided on the outer circumferential surface of the roller. The annular groove is used to limit the movement of the twisted rope. One end of the pressure plate is rotatably mounted on the support frame, and a third elastic element is provided between the other end and the support frame; wherein... The third elastic element is used to apply pre-pressure to the rope between the electric winch and the drum through the pressure plate when the electric winch winds up the rope, so that the rope is evenly arranged on the outer surface of the drum. When the electric winch retracts or extends the rope, the rope engages with the annular groove of the roller to reduce the frictional resistance between the rope and the support frame. The second elastic element provides axial thrust to the roller as the rope winds toward its extreme position on the drum, so as to ensure that the rope is evenly distributed on the drum.

9. An electric winch as described in claim 1, characterized in that, The first speed reduction component includes: First gear; The second gear is disposed at the output end of the drive member, and the outer diameter of the first gear is larger than the outer diameter of the second gear and the two mesh with each other. A connecting pin is fixedly mounted on the first gear; A connecting sleeve, one end of which is fixedly connected to the connecting pin, and one end of the rotating shaft is slidably inserted into the connecting sleeve.

10. An electric winch as described in claim 1, characterized in that, It also includes the casing, battery assembly, controller, and display; The battery assembly is electrically connected to the drive unit and is used to provide operating power to the drive unit; The display is fixed to the outer surface of the housing; The controller is electrically connected to the driver and the display respectively, and is used to control the operating status of the driver and to collect the operating current signal of the driver and transmit it to the display so that the display can display the operating current value of the driver in real time.

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