Electric winch with integrated braking function

Abstract

This utility model discloses an electric winch with integrated braking function, including a main support frame, with a motor assembly and a reducer assembly respectively located at both ends of the main support frame; a drum rotatably connected to the main support frame is located inside the main support frame, the drum being rotatably connected to the reducer assembly; a transmission shaft for transmission is provided between the motor assembly and the reducer assembly, and a brake assembly is provided between the transmission shaft and the motor assembly; the reducer assembly includes a planetary gear assembly and a reducer housing, and a clutch assembly for controlling the meshing state of the planetary gear assembly is provided on the reducer housing; an electronic control assembly is also provided on the main support frame, and the electronic control assembly is electrically connected to the motor assembly. This utility model provides safe and reliable gear switching by providing a manually operated clutch assembly on the reducer housing; and the brake assembly on the transmission shaft is securely installed and provides reliable braking function.

Description

Technical Field

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

[0002] Electric winches are common lifting equipment, widely used in various lifting, towing, and stretching operations. A patent with publication number CN210457273U discloses an electric winch device, including a drum end and a brake end and a power output end connected to both ends of the drum end. The power output end has a relay fixing end at its outer end, and includes an output end housing, a motor fixed inside the output end housing, and a carbon brush body connected to one end of the motor. The relay fixing end includes a fixing end housing, a support frame supporting and fixing the carbon brush body on one side, and a relay body fixed on the other side of the support frame. The relay body has a connecting wire electrically connected to the carbon brush body of the motor. A bolt is inserted into the rear end of the fixing end housing, passing through the support frame and threadedly connected to the output end housing, fixing the output end housing, support frame, and fixing end housing. Existing electric winches have relatively complex clutch mechanisms, unreliable clutch functions, and cannot smoothly switch working gears. Furthermore, the brake assembly of existing electric winches is relatively simple to fix, and there is a risk of the brake assembly disengaging after prolonged operation. Therefore, it is necessary to design an electric winch with integrated braking function to overcome the above difficulties. Summary of the Invention

[0003] This invention addresses the problems existing in the prior art by designing an electric winch with integrated braking function. This invention features a manually operated clutch assembly on the reducer housing, ensuring safe and reliable gear switching; and a brake assembly on the drive shaft, which is securely installed and provides reliable braking function.

[0004] The objective of this invention is achieved through the following technical solution: an electric winch with integrated braking function, comprising a main support frame, with a motor assembly and a reducer assembly respectively disposed at both ends of the main support frame; a drum rotatably connected to the main support frame is disposed inside the main support frame, the drum being rotatably connected to the reducer assembly, a transmission shaft for transmission is disposed between the motor assembly and the reducer assembly, and a brake assembly is disposed between the transmission shaft and the motor assembly; the reducer assembly comprises a planetary gear assembly and a reducer housing, and a clutch assembly for controlling the meshing state of the planetary gear assembly is disposed on the reducer housing; an electrical control assembly is also disposed on the main support frame, and the electrical control assembly is electrically connected to the motor assembly.

[0005] Preferably, the reducer assembly further includes an internal gear ring, which meshes with the planetary gear assembly, and the planetary gear assembly meshes with and rotates with the roller; the drive shaft is inserted into the planetary gear assembly and rotates synchronously with the planetary gear assembly; one end of the drive shaft is mounted on the brake assembly, and the other end of the drive shaft is mounted on the planetary gear assembly; a clutch assembly is mounted on the reducer housing, and the clutch assembly extends to the internal gear ring.

[0006] Preferably, the brake assembly is connected to the motor assembly, and the motor assembly drives the transmission shaft to rotate when it is working; when the transmission shaft rotates, it drives the planetary gear assembly to rotate.

[0007] Preferably, the clutch assembly includes a clutch handle, a clutch cam, a clutch base, and a clutch pin. The clutch base is fixedly mounted on the reducer housing. The clutch handle is sleeved on the clutch base and rotatably connected to the clutch base. A clutch cam is provided between the clutch base and the clutch handle, and the clutch cam is fixedly connected to the clutch handle. When the clutch handle rotates, it drives the clutch cam to rotate. A clutch pin is inserted into the clutch base, and a cylindrical pin is fixedly installed at the end of the clutch pin. The cylindrical pin is slidably mounted on the clutch cam. A return spring is provided between the clutch base and the clutch pin. The clutch pin is oriented towards the internal gear ring, and the internal gear ring has a limiting hole for inserting the clutch pin.

[0008] Preferably, the clutch cam is provided with a pair of guide rails, and the cylindrical pin is slidably mounted on the guide rails; the guide rails are provided with an initial high end and an initial low end, and the initial high end is set higher than the initial low end.

[0009] Preferably, the clutch pin has an annular protrusion, one end of the return spring abuts against the annular protrusion, and the other end of the return spring abuts against the inner wall of the clutch base; a limiting bead is provided between the clutch cam and the clutch base to limit their rotational position; a positioning sleeve is fixedly installed inside the clutch base, and the positioning sleeve contains the limiting bead and an elastic body; the elastic body is installed between the limiting bead and the clutch base, the limiting bead abuts against the open end of the positioning sleeve, and the bottom of the clutch cam has a hole for placing the limiting bead.

[0010] The internal gear ring is installed inside the reducer housing and can rotate relative to the reducer housing. When the clutch pin is inserted into the limiting hole of the internal gear ring, the internal gear ring cannot rotate relative to the reducer housing. At this time, when the motor assembly is working, it can drive the transmission shaft to rotate, which in turn drives the planetary gear assembly to rotate, and the planetary gear assembly can drive the roller to rotate. In this case, the clutch assembly is in the working position. When the clutch pin disengages from the limiting hole of the internal gear ring, the internal gear ring can rotate relative to the reducer housing. When the motor assembly drives the transmission shaft to rotate, the planetary gear assembly will be in an idling state, and the clutch assembly will be in the neutral state.

[0011] When the clutch lever is turned, the clutch cam rotates synchronously, causing the cylindrical pin on the clutch pin shaft to move along the guide rail. When the cylindrical pin is at its initial high position, the clutch pin shaft disengages from the limiting hole of the internal gear ring, and the clutch assembly is in neutral. When the clutch pin shaft is in the high position, the return spring is compressed. Turning the clutch lever causes the cylindrical pin to move from the initial high position to the initial low position. Since the clutch pin shaft may not be fully aligned with the limiting hole, the end of the clutch pin shaft will abut against the outer wall of the internal gear ring. By manually rotating the roller, the roller will drive the planetary gear assembly to rotate, which in turn drives the internal gear ring to rotate, thereby aligning the limiting hole on the internal gear ring with the clutch pin shaft. Then, under the action of the return spring, the clutch pin shaft automatically engages in the limiting hole, and the clutch assembly is in the working position. By setting a limit bead, the clutch handle can be stably positioned in the corresponding gear. The limit bead can extend and retract relative to the positioning bushing. The elastic body inside the positioning bushing is a spring, which is not shown in the attached diagram of the instruction manual. When the cylindrical pin is at the initial high position, the limit bead is just locked in the bottom hole of the clutch cam, so that the clutch cam and clutch handle are not easy to rotate. When the cylindrical pin is at the initial low position, the limit bead is also just locked in the bottom hole of the clutch cam.

[0012] Preferably, the main support includes a motor support, and the brake assembly is installed inside the motor support; the brake assembly includes a brake bushing, a first brake element, and a second brake element; the brake bushing is installed inside the motor support, and the first brake element and the second brake element are rotatably mounted inside the brake bushing, and the first brake element and the second brake element are arranged adjacent to each other; the first brake element rotates synchronously with the motor shaft of the motor assembly, and a drive shaft is mounted on the second brake element, and the second brake element and the drive shaft rotate synchronously.

[0013] Preferably, the drive shaft is a polygonal prism, with one end installed inside the second brake component and the other end installed inside the planetary gear assembly; the open end of the brake bushing is provided with a retaining groove for limiting movement, and a retaining spring is provided in the retaining groove, the retaining spring being arranged adjacent to the first brake component; the outer layer of the brake bushing is provided with several limiting protrusions, and the motor bracket is provided with several limiting grooves, the limiting protrusions being disposed within the limiting grooves; a limiting ring is also provided between the motor bracket and the brake bushing for fixing the two, the limiting ring being simultaneously engaged with the limiting protrusions and the outer wall of the motor bracket.

[0014] When the electric winch is operating normally, the motor assembly drives the first brake to rotate, which in turn drives the second brake. The second brake drives the drive shaft, which in turn drives the planetary gear assembly, which in turn drives the drum. When the electric winch needs to stop working and braking is required, the motor assembly stops rotating instantly, causing the first brake to stop immediately. However, the planetary gear assembly still has inertia, so it drives the drive shaft to continue rotating. This causes the second brake to rotate in the opposite direction relative to the first brake, immediately locking the second brake and preventing it from continuing to rotate. Then, the second brake locks the drive shaft, preventing it from driving the planetary gear assembly, thus locking the brake assembly. During normal operation, both the first and second brakes rotate in the same direction, so they will not jam.

[0015] Preferably, the main support frame includes a motor support frame and a reducer support frame, with a connecting rod fixedly connecting the motor support frame and the reducer support frame. An electrical control component is mounted on the connecting rod. The electrical control component includes an electrical control housing and a relay. A connecting plate is fixedly mounted on the bottom of the electrical control housing, and the connecting plate is fixedly mounted on the connecting rod. A relay is fixedly mounted inside the electrical control housing, and the relay is electrically connected to the motor assembly. The connecting plate and connecting rod facilitate the installation of the electrical control component.

[0016] Compared with the prior art, this utility model has the following advantages: 1. The clutch assembly drives the clutch pin to extend and retract through the clutch handle, and controls the extension and retraction position of the clutch pin through the clutch protrusion, thereby facilitating the switching of the clutch assembly's gears; 2. A limit bead is set on the clutch assembly, so that the clutch assembly can stably maintain the corresponding gear, making the working state of the clutch assembly more stable and reliable; 3. The brake assembly is installed as a whole in the motor bracket, and the connection between the motor bracket and the brake assembly is firm, making the brake assembly more reliable; 4. The brake assembly has a simple structure, and the transmission shaft can be locked immediately through the first brake component and the second brake component, making the braking function reliable. Attached Figure Description

[0017] Figure 1This is a perspective view of the present utility model;

[0018] Figure 2 This is a diagram of the internal structure of the present invention;

[0019] Figure 3 A 3D view of the electronic control components;

[0020] Figure 4 This is an exploded view of the reducer assembly;

[0021] Figure 5 This is an exploded view of the clutch assembly;

[0022] Figure 6 This is an exploded view of the brake assembly.

[0023] Figure 7 This is a 3D view of the motor bracket;

[0024] The diagram shows: 1. Main support frame; 2. Motor assembly; 3. Reducer assembly; 31. Planetary gear assembly; 32. Reducer housing; 33. Internal gear ring; 331. Limiting hole; 4. Roller; 5. Drive shaft; 6. Brake assembly; 61. Brake bushing; 62. First brake component; 63. Second brake component; 64. Slot; 65. Snap ring; 7. Clutch assembly; 71. Clutch handle; 72. Clutch cam; 73. Clutch base. 74. Clutch pin; 75. Cylindrical pin; 76. Return spring; 77. Guide rail; 771. Initial high position end; 772. Initial low position end; 78. Annular protrusion; 79. Limiting bead; 710. Positioning bushing; 8. Electrical control assembly; 81. Electrical control box; 82. Relay; 9. Limiting protrusion; 10. Limiting groove; 11. Limiting ring; 12. Motor bracket; 13. Reducer bracket; 14. Connecting rod; 15. Connecting plate. Detailed Implementation

[0025] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0026] like Figures 1 to 7 As shown, this embodiment discloses an electric winch with a concentrated braking function, including a main support 1, with a motor assembly 2 and a reducer assembly 3 respectively at both ends of the main support 1; a drum 4 is rotatably connected to the main support 1, the drum 4 is rotatably connected to the reducer assembly 3, a transmission shaft 5 for transmission is provided between the motor assembly 2 and the reducer assembly 3, and a brake assembly 6 is provided between the transmission shaft 5 and the motor assembly 2; the reducer assembly 3 includes a planetary gear assembly 31 and a reducer housing 32, and a clutch assembly 7 for controlling the meshing state of the planetary gear assembly 31 is provided on the reducer housing 32; an electrical control assembly 8 is also provided on the main support 1, and the electrical control assembly 8 is electrically connected to the motor assembly 2.

[0027] The reducer assembly 3 also includes an internal gear ring 33, which meshes with a planetary gear assembly 31, which in turn meshes with and rotates with a roller 4. A drive shaft 5 is inserted into the planetary gear assembly 31 and rotates synchronously with it. One end of the drive shaft 5 is mounted on a brake assembly 6, and the other end is mounted on the planetary gear assembly 31. A clutch assembly 7 is mounted on the reducer housing 32 and extends to the internal gear ring 33. The brake assembly 6 is connected to the motor assembly 2, which drives the drive shaft 5 to rotate when it operates. The rotation of the drive shaft 5 drives the planetary gear assembly 31 to rotate.

[0028] The clutch assembly 7 includes a clutch handle 71, a clutch cam 72, a clutch base 73, and a clutch pin 74. The clutch base 73 is fixedly mounted on the reducer housing 32. The clutch handle 71 is sleeved on the clutch base 73 and rotatably connected to the clutch base 73. A clutch cam 72 is provided between the clutch base 73 and the clutch handle 71. The clutch cam 72 is fixedly connected to the clutch handle 71, and the clutch handle 71 rotates, causing the clutch cam 72 to rotate. A clutch pin 74 is inserted into the clutch base 73, and a cylindrical pin 75 is fixedly installed at the end of the clutch pin 74. The cylindrical pin 75 is slidably mounted on the clutch cam 72. A return spring 76 is provided between the clutch base 73 and the clutch pin 74. The clutch pin 74 is oriented towards the internal gear ring 33, and the internal gear ring 33 has a limiting hole 331 for inserting the clutch pin 74. The clutch cam 72 is provided with paired guide rails 77, and the cylindrical pin 75 is slidably mounted on the guide rails 77. The guide rails 77 are provided with an initial high end 771 and an initial low end 772, with the initial high end 771 being higher than the initial low end 772. The clutch pin shaft 74 is provided with an annular protrusion 78, one end of the return spring 76 abuts against the annular protrusion 78, and the other end of the return spring 76 abuts against the inner wall of the clutch base 73. A limiting bead 79 is provided between the clutch cam 72 and the clutch base 73 to limit their rotational position. A positioning bushing 710 is fixedly installed inside the clutch base 73, and the positioning bushing 710 is provided with the limiting bead 79 and an elastic body. The elastic body is installed between the limiting bead 79 and the clutch base 73, and the limiting bead 79 abuts against the open end of the positioning bushing 710. The bottom of the clutch cam 72 is provided with a hole for placing the limiting bead 79.

[0029] The main support 1 includes a motor support 12, and the brake assembly 6 is installed inside the motor support 12. The brake assembly 6 includes a brake bushing 61, a first brake element 62, and a second brake element 63. The brake bushing 61 is installed inside the motor support 12, and the first brake element 62 and the second brake element 63 are rotatably mounted inside the brake bushing 61. The first brake element 62 and the second brake element 63 are arranged adjacent to each other. The first brake element 62 rotates synchronously with the motor shaft of the motor assembly 2, and a transmission shaft 5 is installed on the second brake element 63. The second brake element 63 and the transmission shaft 5 rotate synchronously. The drive shaft 5 is a polygonal prism. One end of the drive shaft 5 is installed in the second brake component 63, and the other end of the drive shaft 5 is installed in the planetary gear assembly 31. The open end of the brake bushing 61 is provided with a retaining groove 64 for limiting the position. A retaining spring 65 is provided in the retaining groove 64, and the retaining spring 65 is arranged adjacent to the first brake component 62. The outer layer of the brake bushing 61 is provided with several limiting protrusions 9, and the motor bracket 12 is provided with several limiting grooves 10. The limiting protrusions 9 are arranged in the limiting grooves 10. A limiting ring 11 for fixing the two is also provided between the motor bracket 12 and the brake bushing 61. The limiting ring 11 is simultaneously locked on the limiting protrusions 9 and the outer wall of the motor bracket 12. The main support 1 includes a motor support 12 and a reducer support 13. A connecting rod 14 is fixedly connected between the motor support 12 and the reducer support 13. An electrical control component 8 is installed on the connecting rod 14. The electrical control component 8 includes an electrical control box 81 and a relay 82. A connecting plate 15 is fixedly installed at the bottom of the electrical control box 81. The connecting plate 15 is fixedly installed on the connecting rod 14. The relay 82 is fixedly installed inside the electrical control box 81 and is electrically connected to the motor assembly 2.

[0030] The specific operation process of this embodiment is as follows: the internal gear ring 33 is installed in the reducer housing 32 and can rotate relative to the reducer housing 32; when the clutch pin 74 is inserted into the limiting hole 331 of the internal gear ring 33, the internal gear ring 33 cannot rotate relative to the reducer housing 32; at this time, when the motor assembly 2 is working, it can drive the transmission shaft 5 to rotate, the transmission shaft 5 can drive the planetary gear assembly 31 to rotate, the planetary gear assembly 31 can drive the roller 4 to rotate, and then the clutch assembly 7 is in the working position; when the clutch pin 74 disengages from the limiting hole 331 of the internal gear ring 33, the internal gear ring 33 can rotate relative to the reducer housing 32, and when the motor assembly 2 drives the transmission shaft 5 to rotate, the planetary gear assembly 31 will be in the idling state, and the clutch assembly 7 will be in the neutral state.

[0031] When the clutch handle 71 is turned, the clutch cam 72 will rotate synchronously, and the cylindrical pin 75 on the clutch pin 74 will move along the guide rail 77. When the cylindrical pin 75 is at the initial high position 771, the clutch pin 74 disengages from the limiting hole 331 of the internal gear ring 33, and the clutch assembly 7 is in neutral. When the clutch pin 74 is in the high position, the return spring 76 is in a compressed state. When the clutch handle 71 is rotated, the cylindrical pin 75 moves from the initial high position end 771 to the initial low position end 772. Since the clutch pin 74 may not be fully aligned with the limiting hole 331, the end of the clutch pin 74 will abut against the outer wall of the internal gear ring 33. By manually rotating the roller 4, the roller 4 will drive the planetary gear assembly 31 to rotate, and the planetary gear assembly 31 will drive the internal gear ring 33 to rotate, thereby aligning the limiting hole 331 on the internal gear ring 33 with the clutch pin 74. Then, under the action of the return spring 76, the clutch pin 74 will automatically lock into the limiting hole 331, and the clutch assembly 7 will be in the working position. By setting the limiting bead 79, the clutch handle 71 can be stably positioned in the corresponding gear. The limiting bead 79 can extend and retract relative to the positioning bushing 710. The elastic body inside the positioning bushing 710 is a spring, which is not shown in the attached drawings of the instruction manual. When the cylindrical pin 75 is at the initial high position 771, the limiting bead 79 is just locked in the bottom hole of the clutch cam 72, so that the clutch cam 72 and the clutch handle 71 are not easy to rotate. When the cylindrical pin 75 is at the initial low position 772, the limiting bead 79 is also just locked in the bottom hole of the clutch cam 72.

[0032] When the electric winch is working normally, the motor assembly 2 drives the first brake component 62 to rotate, which in turn drives the second brake component 63 to rotate. The second brake component 63 then drives the transmission shaft 5 to rotate, which in turn drives the planetary gear assembly 31 to rotate, which in turn drives the drum 4 to rotate. When the electric winch needs to stop working and braking is required, the motor assembly 2 stops rotating instantly, so the first brake component 62 stops rotating immediately. However, the planetary gear assembly 31 still has inertia, so it will drive the transmission shaft 5 to continue rotating. The second brake component 63 will then rotate in the opposite direction relative to the first brake component 62, causing the first brake component 62 to immediately lock the second brake component 63, thus preventing the second brake component 63 from continuing to rotate. Then, the second brake component 63 will lock the transmission shaft 5, preventing it from driving the planetary gear assembly 31. Thus, the brake assembly 6 is in a locked braking state. When the electric winch is working normally, the first brake component 62 and the second brake component 63 rotate in the same direction, so they will not jam against each other.

[0033] 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 replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An electric winch with integrated braking function, comprising a main support frame (1), characterized in that, The main support (1) has a motor assembly (2) and a reducer assembly (3) at its two ends respectively; the main support (1) has a roller (4) rotatably connected to it, the roller (4) is rotatably connected to the reducer assembly (3), the motor assembly (2) and the reducer assembly (3) are connected to a transmission shaft (5) for transmission, the transmission shaft (5) and the motor assembly (2) are connected to a brake assembly (6); the reducer assembly (3) includes a planetary gear assembly (31) and a reducer housing (32), the reducer housing (32) is provided with a clutch assembly (7) for controlling the meshing state of the planetary gear assembly (31); the main support (1) is also provided with an electrical control assembly (8), the electrical control assembly (8) is electrically connected to the motor assembly (2).

2. The electric winch with integrated braking function according to claim 1, characterized in that, The reducer assembly (3) also includes an internal gear ring (33), which meshes with the planetary gear assembly (31), and the planetary gear assembly (31) meshes with the roller (4) to rotate; the drive shaft (5) is inserted into the planetary gear assembly (31), and the drive shaft (5) rotates synchronously with the planetary gear assembly (31); one end of the drive shaft (5) is mounted on the brake assembly (6), and the other end of the drive shaft (5) is mounted on the planetary gear assembly (31); a clutch assembly (7) is installed on the reducer housing (32), and the clutch assembly (7) extends to the internal gear ring (33).

3. The electric winch with integrated braking function according to claim 2, characterized in that, The brake assembly (6) is connected to the motor assembly (2). When the motor assembly (2) is working, it drives the transmission shaft (5) to rotate. When the transmission shaft (5) rotates, it drives the planetary gear assembly (31) to rotate.

4. The electric winch with integrated braking function according to claim 2, characterized in that, The clutch assembly (7) includes a clutch handle (71), a clutch cam (72), a clutch base (73), and a clutch pin (74). The clutch base (73) is fixedly mounted on the reducer housing (32). The clutch handle (71) is sleeved on the clutch base (73) and rotatably connected to the clutch base (73). A clutch cam (72) is provided between the clutch base (73) and the clutch handle (71). The clutch cam (72) is fixedly connected to the clutch handle (71). When the handle (71) rotates, it drives the clutch cam (72) to rotate; a clutch pin (74) is inserted inside the clutch base (73), and a cylindrical pin (75) is fixedly installed at the end of the clutch pin (74). The cylindrical pin (75) is slidably installed on the clutch cam (72); a return spring (76) is provided between the clutch base (73) and the clutch pin (74); the clutch pin (74) is set towards the internal gear ring (33), and the internal gear ring (33) is provided with a limiting hole (331) for inserting the clutch pin (74).

5. The electric winch with integrated braking function according to claim 4, characterized in that, The clutch cam (72) is provided with a pair of guide rails (77), and the cylindrical pin (75) is slidably mounted on the guide rails (77); the guide rails (77) are provided with an initial high end (771) and an initial low end (772), and the initial high end (771) is set higher than the initial low end (772).

6. The electric winch with integrated braking function according to claim 4, characterized in that, The clutch pin (74) is provided with an annular protrusion (78), one end of the return spring (76) abuts against the annular protrusion (78), and the other end of the return spring (76) abuts against the inner wall of the clutch base (73); a limiting bead (79) for limiting the rotation position of the clutch cam (72) and the clutch base (73) is provided; a positioning bushing (710) is fixedly installed in the clutch base (73); the positioning bushing (710) is provided with a limiting bead (79) and an elastic body; the elastic body is installed between the limiting bead (79) and the clutch base (73); the limiting bead (79) abuts against the opening end of the positioning bushing (710); and the bottom of the clutch cam (72) is provided with a hole for placing the limiting bead (79).

7. The electric winch with integrated braking function according to claim 1, characterized in that, The main support (1) includes a motor support (12), and the brake assembly (6) is installed inside the motor support (12). The brake assembly (6) includes a brake bushing (61), a first brake element (62), and a second brake element (63). The brake bushing (61) is installed inside the motor support (12), and the first brake element (62) and the second brake element (63) are rotatably installed inside the brake bushing (61). The first brake element (62) and the second brake element (63) are arranged adjacent to each other. The first brake element (62) rotates synchronously with the motor shaft of the motor assembly (2), and a transmission shaft (5) is installed on the second brake element (63). The second brake element (63) and the transmission shaft (5) rotate synchronously.

8. The electric winch with integrated braking function according to claim 7, characterized in that, The drive shaft (5) is a polygonal prism. One end of the drive shaft (5) is installed in the second brake component (63), and the other end of the drive shaft (5) is installed in the planetary gear assembly (31). The open end of the brake bushing (61) is provided with a retaining groove (64) for limiting. A retaining spring (65) is provided in the retaining groove (64), and the retaining spring (65) is arranged adjacent to the first brake component (62). The outer layer of the brake bushing (61) is provided with several limiting protrusions (9), and the motor bracket (12) is provided with several limiting grooves (10). The limiting protrusions (9) are arranged in the limiting grooves (10). A limiting ring (11) for fixing the two is also provided between the motor bracket (12) and the brake bushing (61). The limiting ring (11) is simultaneously stuck on the limiting protrusions (9) and the outer wall of the motor bracket (12).

9. The electric winch with integrated braking function according to claim 1, characterized in that, The main support (1) includes a motor support (12) and a reducer support (13). A connecting rod (14) is fixedly connected between the motor support (12) and the reducer support (13). An electrical control component (8) is installed on the connecting rod (14). The electrical control component (8) includes an electrical control box (81) and a relay (82). A connecting plate (15) is fixedly installed at the bottom of the electrical control box (81). The connecting plate (15) is fixedly installed on the connecting rod (14). A relay (82) is fixedly installed inside the electrical control box (81). The relay (82) is electrically connected to the motor assembly (2).

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