High-precision planetary gear winch device
By using the combination of worm gear and planetary gear motor and planetary gear in the winch, the problem of uncompact structure of the winch and uneven force under the roller is solved, and the compact volume and uniform force under the roller are achieved, which extends the service life.
Patent Information
- Application Number
- CN202421132353.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The existing winch structure is not compact enough, resulting in large volume and uneven force on the roller, which is prone to deformation and damage.
The high-precision planetary gear hoist device is adopted, and the worm gear reduction motor and planetary gear are used to achieve the installation of ring gears and planetary gears inside the drum assembly, and the self-locking function is used to avoid additional brake structures to ensure uniform distribution of forces.
It achieves compact structure and small size and uniform drum stress, extending service life.
Smart Images
Figure CN222225813U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of winches, in particular to a high-precision planetary gear winch device. Background Art
[0002] A winch is a light and small lifting equipment that uses a drum to wrap a wire rope or chain to lift or pull heavy objects. It can lift vertically, drag heavy objects horizontally or at an angle, and is widely used due to its simple operation, large rope winding capacity, and convenient relocation. It is mainly used for lifting or towing materials in construction, water conservancy projects, forestry, mining, docks, etc. At present, most winches are driven by motors, but because the motor speed is high and the torque is not large enough, a reducer is added between the motor and the drum to reduce speed and increase the torque. In addition, existing winches generally have a brake device installed separately to avoid self-rotation. The above structure will make the winch structure not compact enough and result in a large size. Existing winches generally only use a motor to drive the drum from one end, which causes the drum to be unevenly stressed and easily deformed and damaged. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides a high-precision planetary gear winch device, which solves the problems raised in the above-mentioned background technology.
[0005] (II) Technical solution
[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a high-precision planetary gear winch device, including a drum bracket, the drum bracket including a bracket side plate and a side plate connecting column, a bracket bearing seat is fixedly installed in the middle position of the bracket side plate by screws, a rotatable rotating shaft is installed between the bracket bearing seats, a worm gear reduction motor for driving the rotating shaft to rotate is installed on one side of the bracket side plate, a rotatable drum assembly is sleeved on the rotating shaft, the drum assembly includes an outer drum, a supporting frame is installed inside the outer drum, gear rings are installed inside the two ends of the outer drum, planetary gears meshing with the gear rings are installed on the inner side of the bracket side plate, and a sun gear meshing with the planetary gears is sleeved on the rotating shaft.
[0007] Preferably, there are four side plate connecting columns symmetrically distributed on both sides of the drum assembly, and the spacing between the side plate connecting columns is greater than the outer diameter of the drum assembly, so that there is enough space on both sides of the drum assembly to retract the cables.
[0008] Preferably, the support frame includes a steel pipe in the middle and discs at both ends. The inner diameter of the steel pipe is larger than the outer diameter of the shaft so that the shaft can pass through the support frame. A bearing is installed in the middle of the disc, and the roller assembly can rotate relatively on the shaft through the bearing connection.
[0009] Preferably, the bracket side plate and the shaft for mounting the planetary gear form a fixed planetary frame, and the planetary frame and the planetary gear are two sets and act on the gear rings at both ends of the drum assembly respectively, so that the force applied to the drum assembly is evenly distributed at both ends.
[0010] Preferably, when the worm gear reduction motor is working, it drives the rotating shaft to rotate and drives the two sun gears to rotate synchronously. When the sun gear rotates, it drives the ring gear to rotate through the three planetary gears. At this time, the drum assembly also rotates synchronously with the ring gear and retracts and releases the cable.
[0011] Preferably, the worm gear reduction motor has a self-locking function to prevent the shaft from rotating on its own. The worm gear reduction motor is connected to the shaft through a coupling and is installed on the outside of the drum bracket, so the worm gear reduction motor can be easily disassembled and replaced.
[0012] (III) Beneficial effects
[0013] The utility model provides a high-precision planetary gear winch device, which has the following beneficial effects:
[0014] 1. The high-precision planetary gear winch device has a compact structure and a small volume through the coordinated arrangement of the drum assembly, the worm gear reduction motor, the planetary gear and the sun gear. The drum is braked by the self-locking function of the worm gear reduction motor without an additional brake structure to reduce the volume. The planetary reduction structure is hidden inside the drum assembly and the planetary gear and the sun gear are arranged inside the drum assembly, so that the structure is compact and the volume is small.
[0015] 2. The high-precision planetary gear winch device, through the coordinated arrangement of the drum bracket, the rotating shaft, the drum assembly and the sun gear, enables the high-precision planetary gear winch device to have the effect that the drum is evenly stressed and not easily deformed, thereby having a long service life. Planetary gear structures are installed on both sides of the drum bracket and both ends of the drum assembly, and the planetary gear structures at both ends of the drum are synchronously driven by a rotating shaft with two sun gears installed, so that both ends of the drum are stressed at the same time, so that the drum is evenly stressed and not easily deformed, thereby having an effect of long service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the overall three-dimensional view of the utility model;
[0017] Figure 2 It is a schematic diagram of the structure of the top view of the utility model;
[0018] Figure 3 It is a structural schematic diagram of a cross-sectional view of the utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the roller assembly of the utility model;
[0020] Figure 5 It is a structural schematic diagram of a partial stereoscopic view of the utility model.
[0021] In the figure: 1. roller bracket; 101. bracket side plate; 102. side plate connecting column; 2. bracket bearing seat; 3. rotating shaft; 4. worm gear reduction motor; 5. roller assembly; 501. outer roller; 502. supporting frame; 503. ring gear; 6. planetary gear; 7. sun gear. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0023] See also Figures 1 to 5 The utility model provides a technical solution: a high-precision planetary gear winch device, including a drum bracket 1, the drum bracket 1 includes a bracket side plate 101 and a side plate connecting column 102, a bracket bearing seat 2 is fixedly installed in the middle position of the bracket side plate 101 by screws, a rotatable rotating shaft 3 is installed between the bracket bearing seats 2, a worm gear reduction motor 4 for driving the rotating shaft 3 to rotate is installed on one side of the bracket side plate 101, the worm gear reduction motor 4 has a self-locking function to prevent the rotating shaft 3 from rotating on its own, the worm gear reduction motor 4 is connected to the rotating shaft 3 through a coupling and is installed on the outside of the drum bracket 1, so the worm gear reduction motor 4 can be easily disassembled and replaced, the rotating shaft 3 is sleeved with a rotatable drum assembly 5, the drum assembly 5 includes an outer drum 501, a support frame 502 is installed inside the outer drum 501, and gear rings 503 are installed inside the two ends of the outer drum 501, and the number of side plate connecting columns 102 is four, which are symmetrically distributed on both sides of the drum assembly 5, and the spacing between the side plate connecting columns 102 on both sides is large. The outer diameter of the roller assembly 5 is such that there is enough space on both sides of the roller assembly 5 to store and unpack cables. The support frame 502 includes a steel pipe in the middle and discs at both ends. The inner diameter of the steel pipe is larger than the outer diameter of the shaft 3 so that the shaft 3 can pass through the support frame 502. A bearing is installed in the middle of the disc. The roller assembly 5 can rotate relatively on the shaft 3 through the bearing connection. A planetary gear 6 meshing with the gear ring 503 is installed on the inner side of the bracket side plate 101. The bracket side plate 101 and the shaft for installing the planetary gear 6 form a The planetary carrier is fixed, and each of the planetary carrier and the planetary gear 6 is in two sets and respectively acts on the gear rings 503 at both ends of the drum assembly 5, so that the force exerted on the drum assembly 5 is evenly distributed at both ends. A sun gear 7 meshing with the planetary gear 6 is sleeved on the rotating shaft 3. When the worm gear reduction motor 4 is working, it drives the rotating shaft 3 to rotate and drives the two sun gears 7 to rotate synchronously. When the sun gear 7 rotates, it drives the gear ring 503 to rotate through the three planetary gears 6. At this time, the drum assembly 5 also rotates synchronously with the gear ring 503 and retracts and releases the cable.
[0024] When in use, first insert the rotating shaft 3 into the drum assembly 5, then install the sun gear 7 at both ends of the rotating shaft 3, further divide the six planetary gears 6 into two groups and install them on the inner side of the bracket side plate 101, further install the two bracket bearing seats 2 in the middle of the two bracket side plates 101 respectively, and further install the bracket side plates 101 to both sides of the drum assembly 5 through four side plate connecting columns 102. At this time, the sun gear 7 is meshed with the three planetary gears 6, but the planetary gears 6 can only rotate on their own but not revolve. At this time, the ring gear 503 is meshed with the three planetary gears 6 and the ring gear 503 can rotate. When the planetary gears 6 rotate, the ring gear 503 will rotate synchronously. Further, a worm gear reduction motor of appropriate size is installed on one side of the drum bracket 1 according to the mass of the heavy object. Machine 4, since the worm gear reduction motor 4 has a self-locking function, the gear winch device does not need to install a brake device to reduce its size. Since the planetary gear 6 structure is hidden inside the outer drum 501, the size of the winch device can be reduced. When the winch device is working, the worm gear reduction motor 4 drives the rotating shaft 3 to rotate. At this time, the sun gears 7 at both ends of the rotating shaft 3 also rotate synchronously. At the same time, the sun gear 7 drives the planetary gear 6 to rotate, and further the planetary gear 6 drives the ring gear 503 to rotate. Since the ring gear 503 rotates, the entire drum assembly 5 also rotates. When the drum assembly 5 rotates, the cable can be retracted and released. Since the drum assembly 5 is driven by the planetary structures at both ends and the force is evenly applied, it is not easy to deform even if it is used for a long time.
[0025] In summary, the high-precision planetary gear winch device brakes the drum through the self-locking function of the worm gear reduction motor 4 without the need for an additional brake structure, thereby reducing the size. By installing the ring gear 503 inside the drum assembly 5 and arranging the planetary gear 6 and the sun gear 7 inside the drum assembly 5, the planetary reduction structure is hidden inside the drum to make the structure compact and small in size. Planetary gear 6 structures are installed on both sides of the drum bracket 1 and at both ends of the drum assembly 5, and the planetary gear 6 structures at both ends of the drum are synchronously driven by a rotating shaft 3 with two sun gears 7 installed, so that both ends of the drum are stressed at the same time, so that the drum is evenly stressed and not easily deformed, thereby extending the service life.
[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A high-precision planetary gear winch device, comprising a roller bracket (1), characterized in that: The roller bracket (1) comprises a bracket side plate (101) and a side plate connecting column (102); a bracket bearing seat (2) is fixedly mounted in the middle of the bracket side plate (101) by means of screws; a rotatable rotating shaft (3) is mounted between the bracket bearing seats (2); a worm gear reduction motor (4) for driving the rotating shaft (3) to rotate is mounted on one side of the bracket side plate (101); a rotatable roller assembly (5) is sleeved on the rotating shaft (3); the roller assembly (5) comprises an outer roller (501); a supporting frame (502) is mounted inside the outer roller (501); gear rings (503) are mounted inside both ends of the outer roller (501); a planetary gear (6) meshing with the gear ring (503) is mounted on the inner side of the bracket side plate (101); and a sun gear (7) meshing with the planetary gear (6) is sleeved on the rotating shaft (3).
2. The high-precision planetary gear winch device according to claim 1, characterized in that: The number of the side plate connecting columns (102) is four and they are symmetrically distributed on both sides of the roller assembly (5). The spacing between the side plate connecting columns (102) is greater than the outer diameter of the roller assembly (5), so that there is sufficient space on both sides of the roller assembly (5) to store and retract cables.
3. The high-precision planetary gear hoist device according to claim 1, characterized in that: The support frame (502) comprises a steel pipe in the middle and discs at both ends. The inner diameter of the steel pipe is larger than the outer diameter of the rotating shaft (3) so that the rotating shaft (3) can pass through the support frame (502). A bearing is installed in the middle of the disc. The roller assembly (5) can rotate relatively on the rotating shaft (3) through the bearing connection.
4. The high-precision planetary gear hoist device according to claim 1, characterized in that: The bracket side plate (101) and the shaft on which the planetary gear (6) is mounted form a fixed planetary frame. The planetary frame and the planetary gear (6) are both in two sets and act on the gear rings (503) at both ends of the roller assembly (5) respectively, so that the force applied to the roller assembly (5) is evenly distributed at both ends.
5. The high-precision planetary gear hoist device according to claim 1, characterized in that: When the worm gear reduction motor (4) is in operation, it drives the rotating shaft (3) to rotate and drives the two sun gears (7) to rotate synchronously. When the sun gear (7) rotates, it drives the ring gear (503) to rotate via the three planetary gears (6). At this time, the drum assembly (5) also rotates synchronously with the ring gear (503) and retracts and releases the cable.
6. The high-precision planetary gear hoist device according to claim 1, characterized in that: The worm gear reduction motor (4) has a self-locking function to prevent the rotating shaft (3) from rotating on its own. The worm gear reduction motor (4) is connected to the rotating shaft (3) through a coupling and is installed on the outside of the roller bracket (1), so that the worm gear reduction motor (4) can be easily disassembled and replaced.