A two-speed winch clutch and a two-speed electric winch having the winch clutch

Abstract

The present application relates to a dual-speed winch clutch and a dual-speed electric winch having the winch clutch, and relates to the field of winches. It solves the defect that most existing electric winches are single-speed winches with clutch control and can only use a single rated pulling force under different load conditions. The housing, the primary planetary gear assembly, the secondary planetary gear assembly, the tertiary planetary gear assembly and the speed regulating assembly arranged on the housing are sequentially connected to the housing in rotation; the primary planetary gear assembly and the secondary planetary gear assembly and the tertiary planetary gear assembly are sequentially connected to form a reduction gear, the secondary planetary gear assembly includes two planetary gear sets with different transmission ratios, both planetary gear sets have a second internal gear that is rotatably connected to the housing, and the outer wall of the second internal gear is provided with at least one positioning hole; the speed regulating assembly includes a clutch pin, and the clutch pin can be slidably inserted into or out of the positioning hole. The present application has the effect of being different from the existing dual-speed winch in terms of gear shift interference and difficulty in identifying functions.

Description

Technical Field

[0001] The present application relates to the field of winches, and in particular to a dual-speed winch clutch and a dual-speed electric winch having the winch clutch. Background Art

[0002] An electric winch is a device that can be used for traction, such as a car winch, which can be used for self-rescue and rescue in harsh environments. A car winch is a tool that uses its own power engine to rotate and pulls a car stuck in trouble through a fixed or towed steel rope or special cable at the other end. It is one of the essential tools for off-road vehicles.

[0003] In the related art, in addition to the traction function, the electric winch is often provided with a clutch mechanism in the reduction gear box, which is used to cut off the power connection between the motor and the winch drum to facilitate the pulling operation of the wire rope on the winch drum; however, most of the existing electric winches are single-speed winches with clutch control, and the application scope of single-speed winches is relatively limited, and there is still room for improvement. Summary of the invention

[0004] In order to realize dual-speed belt clutch control of an electric winch and improve the application scope of the electric winch, the present application provides a winch clutch and a winch having the winch clutch.

[0005] In a first aspect, the present application provides a winch clutch, which adopts the following technical solution:

[0006] A dual-speed winch clutch comprises a housing, and further comprises a primary planetary gear assembly, a secondary planetary gear assembly, a tertiary planetary gear assembly which are sequentially rotatably connected in the housing, and a speed regulating assembly arranged on the housing and cooperating with the secondary planetary gear assembly for speed regulation;

[0007] The first-stage planetary gear assembly is sequentially connected with the second-stage planetary gear assembly and the third-stage planetary gear assembly to form a reduction gear, the second-stage planetary gear assembly includes two planetary gear sets with different transmission ratios, both of the two planetary gear sets have a second internal gear rotatably connected to the housing, and at least one positioning hole is provided on the outer side wall of the second internal gear;

[0008] The speed regulating assembly includes a clutch pin which is passed through the housing and corresponds one-to-one with the second internal gear. The clutch pin can be inserted into or out of the positioning hole along the axial direction of the clutch pin relative to the housing. At most, one clutch pin is inserted into the positioning hole corresponding to the second internal gear.

[0009] By adopting the above technical solution, the clutch pin slides and inserts into the positioning hole along its length direction. When both ends of the two clutch pins close to the second internal gear are received in the sliding holes, the first-stage planetary gear assembly is separated from the third-stage planetary gear assembly, which is the clutch state; the two-speed of the winch clutch is realized by inserting different clutch pins into the positioning holes of the corresponding second internal gears. That is, when the clutch pin close to the first-stage planetary gear assembly is inserted into the positioning hole of the corresponding second internal gear, and one end of the other clutch pin close to the second internal gear is received in the sliding hole, it is in the low-speed state. When the clutch pin far from the first-stage planetary gear assembly is inserted into the positioning hole of the corresponding second internal gear, and one end of the other clutch pin close to the second internal gear is received in the sliding hole, it is in the high-speed state, realizing the two-speed with clutch control of the electric winch.

[0010] Optionally, the speed regulation assembly further includes a base plate fixed on the housing, a driving member rotatably connected to the side of the base plate away from the housing, and an elastic member sleeved on the clutch pin. The elastic member makes the clutch pin have a tendency to move towards the housing and insert into the positioning hole;

[0011] One end of the clutch pin away from the housing penetrates through the base plate and is connected to the driving member. There is a rotating ramp on the outer side wall of the driving member away from the base plate. A driving column that reciprocates in the rotating ramp is fixed at one end of the clutch pin away from the housing. The driving member includes a clutch position, a low-speed position, and a high-speed position;

[0012] When the driving member is in the clutch position, both clutch pins are located outside the positioning hole, and the elastic member is in a compressed state; when the driving member is in the low-speed position or the high-speed position, one clutch pin is inserted into the positioning hole of the corresponding second internal gear, and the other clutch pin is located outside the positioning hole.

[0013] By adopting the above technical solution, the elastic member makes the clutch pin have a tendency to move towards the housing, so that when the driving member is in the clutch position, the driving column presses against the bottom of the groove of the rotating ramp under the action of the elastic member to increase the friction force between the driving column and the driving member, making the driving member not easy to rotate without manual operation, improving the stability of the winch clutch during use. When the driving member is in the high-speed position or the low-speed position, the clutch pin is inserted into the positioning hole of the corresponding second internal gear under the drive of the elastic member, realizing the two-speed with clutch control of the electric winch.

[0014] Optionally, a limiting ring is provided on the outer side wall of the clutch pin passing through the housing. One end of the elastic member abuts against the base plate and the other end abuts against the limiting ring.

[0015] By adopting the above technical solution, first sleeve the elastic member on the clutch pin, and then pass the clutch pin through and install it on the base plate, so that one end of the elastic member abuts against the base plate and the other end abuts against the limiting ring. The installation is convenient and the assembly efficiency of the clutch pin, the elastic member, and the base plate is improved.

[0016] Optionally, at least one limiting groove for the driving column to be inserted is further provided on the outer side wall of the driving member, and the limiting groove is located at the bottom of the rotating ramp;

[0017] Wherein, when the driving column is inserted into the limiting groove, one end of the clutch pin corresponding to the driving column close to the second internal gear is received in the side wall of the housing.

[0018] By adopting the above technical solution, the setting of the limiting groove enables the driving column to be kept inserted in the limiting groove under the action of the elastic member, so that the driving member is not easily rotated during non-artificial operation, and the stability of the winch clutch during use is improved.

[0019] Optionally, the speed regulating assembly further includes a handle fixed to the end of the driving member away from the housing.

[0020] By adopting the above technical solution, the setting of the handle increases the holding area of the driving member, facilitates the user to hold and rotate the driving member, and improves the use efficiency of the winch clutch.

[0021] Optionally, a gear position indicator disk is provided at the end of the handle away from the housing, the gear position indicator disk is rotatably connected to the handle, the gear position indicator disk is fixedly connected to the housing, and an indicator block for cooperating with the gear position indicator disk is provided at the end of the handle away from the housing.

[0022] By adopting the above technical solution, the indicator block cooperates with the gear position indicator disk to indicate the current state of the winch clutch, which facilitates the user to intuitively understand the current state of the winch clutch for convenient adjustment and improves the use efficiency of the winch clutch.

[0023] Optionally, the speed regulating assembly further includes a sealing cover covering the base plate and a sealing ring sleeved on the end of the driving member away from the housing. The sealing cover has a through hole for the end of the driving member away from the housing to pass through, and an embedding groove for the sealing ring to be embedded is provided on the outer side wall of the end of the driving member away from the housing.

[0024] By adopting the above technical solution, the setting of the sealing cover and the sealing ring covers and seals the base plate and the driving member, improving the sealing performance of the winch clutch.

[0025] Optionally, the first-stage planetary gear assembly includes a first internal gear fixedly connected to the inside of the housing, two first base plates respectively provided at both ends of the first internal gear and rotating synchronously, a first sun gear embedded in the first internal gear, and a first planetary gear rotatably connected between the two first base plates. The first sun gear rotates with the output shaft of the motor, the first sun gear and the first internal gear are concentrically arranged, and both the first internal gear and the first sun gear mesh with the first planetary gear.

[0026] By adopting the above technical solution, the first-stage planetary gear assembly uses a planetary gear train for transmission, which has a compact structure, small size, light weight, high efficiency, small power loss, balanced transmission, and strong anti-impact and vibration resistance.

[0027] Optionally, the second-stage planetary gear assembly includes a driving gear that rotates synchronously with the first substrate, two second internal gears that are rotatably connected to the inside of the housing and are concentrically arranged, three second substrates that are parallel to each other and rotate synchronously, at least one second planetary gear that is rotatably connected to the second substrate, a second sun gear that rotates synchronously with the driving gear and meshes with the second planetary gear, a third planetary gear that is rotatably connected to the second substrate, and a transmission gear that rotates synchronously with the second substrate. The second planetary gear meshes with the second internal gear close to the first-stage planetary gear assembly, and the third planetary gear meshes with the second internal gear far from the first-stage planetary gear assembly.

[0028] By adopting the above technical solution and used in conjunction with the speed regulation assembly, it is possible to adjust the output speed of the winch clutch by locking different second internal gears with the clutch pins, achieving two-speed and clutch control of the electric winch.

[0029] Optionally, the third-stage planetary gear assembly includes a third internal gear that is rotatably connected to the inside of the housing, two third substrates respectively provided at both ends of the third internal gear, and at least one fourth planetary gear that is rotatably connected to the two third substrates. The fourth planetary gear meshes with the transmission gear, and the fourth planetary gear meshes with the third internal gear.

[0030] By adopting the above technical solution, the third-stage planetary gear assembly uses a planetary gear train for transmission, which has a compact structure, small size, light weight, high efficiency, small power loss, balanced transmission, and strong anti-impact and vibration resistance.

[0031] In a second aspect, the present application provides a two-speed electric winch, adopting the following technical solution:

[0032] A two-speed electric winch includes a motor and a winch drum rotatably connected to one end of the motor, and also includes a winch clutch as described above. The input end of the winch clutch rotates synchronously with the output shaft of the motor, and the output end of the winch clutch drives the winch drum to rotate.

[0033] By adopting the above technical solution, the clutch pin is driven to slide along its length direction by the rotation driving member. When both sides of the two clutch pins close to the housing are received in the sliding holes, the first-stage planetary gear assembly is separated from the third-stage planetary gear assembly, which is the clutch state. The two-speed of the winch clutch is realized by inserting different clutch pins into the positioning holes of the corresponding second internal gears. That is, when the clutch pin close to the first-stage planetary gear assembly is inserted into the positioning hole of the corresponding second internal gear, it is in the low-speed state, and when the clutch pin far from the first-stage planetary gear assembly is inserted into the positioning hole of the corresponding second internal gear, it is in the high-speed state, realizing the two-speed with clutch control of the electric winch.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] The NGW type three-stage planetary reduction structure is adopted, and the second-stage planetary gear assembly is provided with a variable-speed structure with two different speed ratios. The clutch pin cooperates with the two second internal gears of the second-stage planetary gear assembly, and the clutch, high-speed and low-speed states of the winch clutch are respectively realized by the fixed or movable states of the two second internal gears. This design focuses on the shift reliability different from other two-speed winches and the function recognition of each working condition under the two-speed change state, different from the shift interference and difficult function recognition of the existing two-speed winches. Brief Description of the Drawings

[0036] Figure 1 It is a schematic structural diagram of a two-speed electric winch according to Embodiment 1 of the present application.

[0037] Figure 2 It is a partial cross-sectional view of the winch clutch according to Embodiment 1 of the present application.

[0038] Figure 3 It is an exploded view of the gearbox and the first-stage planetary gear assembly according to Embodiment 1 of the present application.

[0039] Figure 4 It is an exploded view of the second-stage planetary gear assembly according to Embodiment 1 of the present application.

[0040] Figure 5 It is an exploded view of the third-stage planetary gear assembly according to Embodiment 1 of the present application Figure 1 。

[0041] Figure 6 It is an exploded view of the third-stage planetary gear assembly according to Embodiment 1 of the present application Figure 2 。

[0042] Figure 7 It is a partial cross-sectional view of the gearbox and the speed regulation assembly according to Embodiment 1 of the present application.

[0043] Figure 8 It is a schematic structural diagram of the driving member, the clutch pin, the driving column, the elastic member and the base plate according to Embodiment 1 of the present application.

[0044] Figure 9 It is an exploded schematic view of the gear position indicator disk, fixed screw, connecting sleeve, indicating base plate, and handle in Embodiment 1 of the present application.

[0045] Explanation of reference numerals: 1, winch clutch; 110, housing; 111, gearbox; 1111, sliding hole; 1112, external gear ring; 1113, clamping groove; 1114, snap ring; 1115, stepped groove; 112, end cover; 120, first-stage planetary gear assembly; 121, first sun gear; 122, first internal gear; 123, first planetary gear; 124, first base plate; 1241, transmission hole; 125, first base column; 130, second-stage planetary gear assembly; 131, second internal gear; 1311, positioning hole; 132, second base plate; 133, driving gear; 134, second sun gear; 135, second planetary gear; 136, second base column; 137, third planetary gear; 138, transmission gear; 140, third-stage planetary gear assembly; 141, third internal gear; 142, third base plate; 143, third base column; 144, fourth planetary gear; 145, output gear; 150, speed regulation assembly; 151, clutch pin; 152, driving column; 153, driving member; 1531, rotating ramp; 1532, limiting groove; 1533, embedding groove; 1534, plugging block; 154, base plate; 155, limiting ring; 156, elastic member; 157, handle; 1571, gear position indicator disk; 1572, connecting sleeve; 1573, fixed screw; 1574, indicating base plate; 1575, accommodating groove; 1576, indicating block; 158, sealing cover; 1581, through hole; 159, sealing ring; 2, motor; 3, winch drum; 4, connecting rod. Detailed implementation manners

[0046] The following further elaborates on the present application in conjunction with the attached Figures 1-9 for a more detailed description.

[0047] Embodiment 1 of the present application discloses a two-speed electric winch.

[0048] Embodiment 1

[0049] Referring to Figure 1 , the two-speed electric winch includes a motor 2, a winch drum 3, and a winch clutch 1; a connecting rod 4 is fixed between the motor 2 and the winch clutch 1 by screws, the winch drum 3 is installed between the motor 2 and the winch clutch 1, the winch drum 3 is rotationally connected to both the motor 2 and the winch clutch 1, the output shaft of the motor 2 is concentric with the winch drum 3, the output shaft of the motor 2 passes through the winch drum 3 and then is connected to the input end of the winch clutch 1, and the output end of the winch clutch 1 is connected to the winch drum 3 to drive the winch drum 3 to rotate. The winch clutch 1 is used to adjust the winding speed of the winch drum 3.

[0050] Reference Figure 2 , 3 The capstan clutch 1 includes a housing 110, a primary planetary gear assembly 120, a secondary planetary gear assembly 130, a tertiary planetary gear assembly 140 and a speed regulating assembly 150; the housing 110 includes a gear box 111 and an end cover 112, the primary planetary gear assembly 120 and the secondary planetary gear assembly 130 and the tertiary planetary gear assembly 140 are sequentially installed in the gear box 111, the primary planetary gear assembly 120 is transmission-connected with the secondary planetary gear assembly 130 and the tertiary planetary gear assembly 140, and the end cover 112 is fixed to the opening of the gear box 111 by bolts to limit the transmission connection between the primary planetary gear assembly 120 and the secondary planetary gear assembly 130 and the tertiary planetary gear assembly 140 within the gear box 111.

[0051] The first-stage planetary gear assembly 120 includes a first internal gear 122, a first base plate 124, a first sun gear 121 and a first planetary gear 123; the first internal gear 122 is embedded and installed at the bottom of the gear box 111, the outer wall of the first internal gear 122 abuts against the inner wall of the gear box 111, and a clamping groove 1113 is provided on the inner wall of the gear box 111, and a retaining spring 1114 is clamped in the clamping groove 1113 to limit the first internal gear 122 to the bottom of the gear box 111; an outer gear ring 1112 is also integrally provided on the inner wall of the bottom of the gear box 111, and the outer gear ring 1112 is meshed with the first internal gear 122 to prevent the first internal gear 122 from rotating relative to the gear box 111; the first sun gear is embedded in the first internal gear 122 and is concentrically arranged with the first internal gear 122, and the first sun gear is sleeved on the output of the motor 2 The first sun gear 123 is fixed to the output shaft of the motor 2, and the first sun gear rotates synchronously with the output shaft of the motor 2; there are two first substrates 124, and the two first substrates 124 are respectively arranged at the two ends of the first internal gear 122, and the two first substrates 124 are connected by a first base column 125 so that the two substrates rotate synchronously, and the two first substrates 124 have a center hole through which the output shaft of the power supply machine 2 passes; there are at least one first planetary gear 123, and in this embodiment, three first planetary gears 123 are introduced as an example, the first planetary gear 123 is located between the two first substrates 124, and the first planetary gears 123 are correspondingly sleeved on the first base column 125 one by one, the first planetary gear 123 is rotatably connected to the first base column 125, and the first planetary gear 123 is meshed with the first internal gear 122 and the first sun gear 121.

[0052] Reference Figure 3 , 4, the secondary planetary gear assembly 130 includes a driving gear 133, a second internal gear 131, a second base plate 132, a second planetary gear 135, a second sun gear 134, a third planetary gear 137, and a transmission gear 138; a transmission hole 1241 is formed on the first base plate 124 near the opening of the gearbox 111, and one end of the driving gear 133 is inserted into the transmission hole 1241 to drive the driving gear 133 to rotate synchronously through the first base plate 124; the number of the second internal gears 131 is two, and the two second internal gears 131 are arranged side by side and embedded in the gearbox 111 and rotatably connected to the gearbox 111. The two second internal gears 131 are concentrically arranged, and the second internal gear 131 is concentric with the first internal gear 122 and the driving gear 133. A stepped groove 1115 is formed on the inner side wall of the gearbox 111. The end face of the second internal gear 131 near the primary planetary gear assembly 120 abuts against the bottom of the stepped groove 1115, and the second internal gear 131 abuts against the inner side wall of the gearbox 111; the number of the second base plates 132 is three, and the three second base plates 132 are parallel to each other. Two second base plates 132 correspond to one second internal gear 131, and the three second base plates 132 are fixed by second base posts 136 so that the three second base plates 132 rotate synchronously. Each of the three second base plates 132 has a central hole for the driving gear 133 to pass through, and the driving gear 133 sequentially passes through the two second base plates 132 near the primary planetary gear assembly 120; the second sun gear 134 is located between the two second base plates 132 near the primary planetary gear assembly 120. The second sun gear 134 is concentric with the second internal gear 131, and the second sun gear 134 is sleeved on the driving gear 133 and rotates synchronously with the driving gear 133; the number of the second planetary gears 135 is at least one. In this embodiment, three second planetary gears 135 are taken as an example for introduction. The second planetary gears 135 are located between the two second base plates 132 near the primary planetary gear assembly 120. The second planetary gears 135 are sleeved on the second base posts 136 and rotatably connected to the second base posts 136. The second planetary gears 135 mesh with the second internal gear 131 near the primary planetary gear assembly 120, and the second planetary gears 135 mesh with the second sun gear 134; the number of the third planetary gears 137 is at least one. In this embodiment, three third planetary gears 137 are taken as an example for introduction. The third planetary gears 137 are located between the two second base plates 132 far from the primary planetary gear assembly 120. The third planetary gears 137 are sleeved on the second base posts 136 and rotatably connected to the second base plates 132. The third planetary gears 137 mesh with the second internal gear 131 far from the primary planetary gear assembly 120. The diameter of the third planetary gears 137 is smaller than that of the second planetary gears 135, and the third planetary gears 137 mesh with the driving gear 133; the transmission gear 138 is fixed on the second base plate 132 far from the primary planetary gear assembly 120, and the transmission gear 138 rotates synchronously with the second base plate 132;At least one positioning hole 1311 is formed on the outer side wall of each of the two second internal gears 131. When the number of the positioning holes 1311 is two or more, the positioning holes 1311 are evenly arranged circumferentially along the outer side wall of the second internal gear 131.

[0053] Refer to Figure 5 、 6 As shown in FIGS.

[0054] Refer to Figure 7 、 8, the speed regulation assembly 150 is used to cooperate with the secondary planetary gear assembly 130 to adjust the output speed of the winch clutch 1. The speed regulation assembly 150 includes a clutch pin 151, a driving column 152, a driving member 153, a limiting ring 155, a base plate 154 and an elastic member 156. The base plate 154 is fixed to the outer side wall of the gearbox 111 by screws. The clutch pins 151 correspond to the second internal gears 131 one by one. The length direction of the clutch pin 151 is perpendicular to the axis of the second internal gear 131. The upper end of the clutch pin 151 passes through the base plate 154 and is slidably connected to the base plate 154. A sliding hole 1111 is formed in the outer side wall of the gearbox 111. The sliding hole 1111 penetrates the outer side wall of the gearbox 111. The sliding hole 1111 allows the clutch pin 151 to pass through and slide along its length direction, so that the clutch pin 151 can be inserted into the positioning hole 1311 of the second internal gear 131 through the sliding hole 1111. The driving columns 152 are inserted into the upper ends of the clutch pins 151 one by one. The two driving columns 152 are arranged oppositely. The driving member 153 is rotatably connected to the side of the base plate 154 away from the gearbox 111. A rotating ramp 1531 is formed on the outer side wall of the driving member 153. The rotating ramp 1531 penetrates the end face of the driving member 153 away from the base plate 154. The lower side of the driving column 152 abuts against and slides on the bottom of the rotating ramp 1531. The limiting ring 155 is integrally arranged on the outer side wall of the clutch pin 151. The limiting ring 155 is located below the base plate 154. The elastic member 156 is sleeved on the clutch pin 151. One end of the elastic member 156 abuts against the base plate 154, and the other end of the elastic member 156 abuts against one end of the limiting ring 155 close to the base plate 154, so that the clutch pin 151 has a tendency to slide in a direction away from the driving member 153. The elastic member 156 can be an elastic corrugated pipe, an elastic rubber sleeve, or a compression spring. In this embodiment, the elastic member 156 is introduced by taking a compression spring as an example. When the driving member 153 rotates, at most one clutch pin 151 is inserted into the positioning hole 1311 of the second internal gear 131.

[0055] Three limiting grooves 1532 are formed on the driving member 153. The three limiting grooves 1532 are arranged at intervals of 90° along the circumferential direction of the driving member 153. The limiting grooves 1532 are located at the bottom of the rotating ramp 1531. The limiting grooves 1532 are for the lower sides of the driving columns 152 to be embedded, so that the driving member 153 is not easily rotated during non-artificial operation. When the lower side of the driving column 152 is embedded in the limiting groove 1532, the end of the clutch pin 151 corresponding to the driving column 152 close to the housing 110 is received in the sliding hole 1111.

[0056] The speed regulation assembly 150 further includes a sealing cover 158 covering the base plate 154. The sealing cover 158 is fixed to the outer side wall of the gearbox 111 by screws. There is a through hole 1581 on the sealing cover 158. The through hole 1581 penetrates through the end of the driving member 153 away from the gearbox 111. The outer side wall of the end of the driving member 153 away from the gearbox 111 abuts against the inner side wall of the through hole 1581, and the driving member 153 is rotatably connected to the sealing cover 158. Embedding grooves 1533 are formed on the outer side walls of the driving member 153 and the sealing cover 158, and sealing rings 159 are embedded in the embedding grooves 1533 to seal the gap between the sealing cover 158 and the end of the driving member 153 away from the gearbox 111.

[0057] The speed regulation assembly 150 further includes a handle 157. The handle 157 is fixed to the end of the driving member 153 away from the gearbox 111 to increase the gripping area of the driving member 153, facilitating the user to rotate the driving member 153 to adjust the output speed of the winch clutch 1. One end of the driving member 153 away from the gearbox 111 has a plug-in block 1534, and the plug-in block 1534 is plugged into the inner hole of the handle 157.

[0058] Refer to Figure 7 、 9 On the end of the handle 157 away from the driving member 153, there is also an indicating base plate 1574. One side of the indicating base plate 1574 close to the housing 110 has a connecting sleeve 1572. The connecting sleeve 1572 sequentially penetrates through the handle 157 and the driving member 153, and the driving member 153 is rotatably connected to the connecting sleeve 1572. The indicating base plate 1574 is fixed to the housing 110 by fixing screws 1573. The fixing screws 1573 sequentially penetrate through the indicating base plate 1574, the connecting sleeve 1572 and then are threadedly connected to the housing 110.

[0059] A receiving groove 1575 is formed on the end face of the handle 157 away from the gearbox 111 for the indicating base plate 1574 to be embedded and received. The gear position indicating disc 1571 is fixed to the indicating base plate 1574. An indicating block 1576 is provided on the end face of the handle 157 away from the gearbox 111. The indicating block 1576 cooperates with the gear position indicating disc 1571 to indicate the output gear position of the winch clutch 1.

[0060] The implementation principle of Embodiment 1 is: by the driving member 153 and the elastic member 156, the clutch pin 151 is driven to slide along the length direction of the clutch pin 151 to form a clutch working position, a high-speed working position and a low-speed working position; Figure 7 、 Figure 8The state in [it] is the initial position. At this time, the clutch pin 151 close to the third internal gear 141 is inserted into the positioning hole 1311 of the second internal gear 131 close to the third internal gear 141, and one end of the clutch pin 151 far from the third internal gear 141 is received in the sliding hole 1111. The power of the motor 2 is transmitted through the first-stage planetary gear assembly 120, the driving gear 133, the third planetary gear 137, the second internal gear 131, the second base plate 132, the transmission gear 138 and the third-stage planetary gear assembly 140, which is the low-speed working position; the holding handle 157 rotates 90° along the direction indicated by the arrow A. At this time, one end of the two clutch pins 151 close to the gearbox 111 is received in the sliding hole 1111, which is the clutch working position, that is, the motor 2 is separated from the winch drum 3; the holding handle 157 rotates 90° again along the direction indicated by the arrow A. At this time, the clutch pin 151 far from the third internal gear 141 is inserted into the positioning hole 1311 of the second internal gear 131 far from the third internal gear 141, and one end of the clutch pin 151 close to the third internal gear 141 is received in the sliding hole 1111. The power of the motor 2 is transmitted through the first-stage planetary gear assembly 120, the driving gear 133, the second sun gear 134, the second planetary gear 135, the second internal gear 131, the second base plate 132, the transmission gear 138 and the third-stage planetary gear assembly 140, which is the high-speed working position.

[0061] Embodiment 2

[0062] The difference between this embodiment and Embodiment 1 is that the speed regulation assembly 150 includes clutch pins 151; the number of the clutch pins 151 is two, and the two clutch pins 151 correspond to the two second internal gears 131 one by one. The clutch pins 151 penetrate through the side wall of the housing 110 and are threadedly connected to the housing 110.

[0063] The implementation principle of Embodiment 2 is as follows: in the clutch state, both of the two clutch pins 151 are located outside the positioning hole 1311; rotating one of the clutch pins 151 so that one of the clutch pins 151 is inserted into the positioning hole 1311 of the corresponding second internal gear 131 can realize the high-speed state and the low-speed state of the two-speed electric winch.

[0064] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. A two-speed winch clutch, comprising a housing (110), characterized in that: It also includes a primary planetary gear assembly (120), a secondary planetary gear assembly (130), a tertiary planetary gear assembly (140) which are rotatably connected in sequence within the housing (110), and a speed regulating assembly (150) which is arranged on the housing (110) and cooperates with the secondary planetary gear assembly (130) to regulate speed; The first-stage planetary gear assembly (120) is sequentially connected to the second-stage planetary gear assembly (130) and the third-stage planetary gear assembly (140) in a transmission manner to form a reduction gear, the second-stage planetary gear assembly (130) comprising two planetary gear sets with different transmission ratios, both of the two planetary gear sets comprising a second internal gear (131) rotatably connected to the housing (110), and at least one positioning hole (1311) is provided on the outer side wall of the second internal gear (131); The speed regulating assembly (150) comprises a clutch pin (151) which is penetrated through the housing (110) and corresponds one-to-one with the second internal gear (131); the clutch pin (151) can be inserted into or slid out of the positioning hole (1311) along the axial direction of the clutch pin (151) relative to the housing (110); at most one clutch pin (151) is inserted into the positioning hole (1311) corresponding to the second internal gear (131); The speed regulating assembly (150) further comprises a base plate (154) fixed on the housing (110), a driving member (153) rotatably connected to a side of the base plate (154) away from the housing (110), and an elastic member (156) sleeved on the clutch pin (151), wherein the elastic member (156) enables the clutch pin (151) to maintain a tendency to move in a direction close to the housing (110) so as to be inserted into the positioning hole (1311); The end of the clutch pin (151) away from the housing (110) passes through the base plate (154) and is connected to the driving member (153); the outer wall of the driving member (153) away from the base plate (154) has a rotating ramp (1531); the end of the clutch pin (151) away from the housing (110) is fixed with a driving column (152) that reciprocates in the rotating ramp (1531); the driving member (153) includes a clutch position, a low-speed position and a high-speed position; At least one limiting groove (1532) for the driving column (152) to be embedded is also provided on the outer side wall of the driving member (153), and the limiting groove (1532) is located at the bottom of the rotating ramp (1531); When the driving column (152) is embedded in the limiting groove (1532), an end of the clutch pin (151) corresponding to the driving column (152) close to the second internal gear (131) is received in the side wall of the housing (110); When the driving member (153) is in the clutch position, the two clutch pins (151) are both located outside the positioning hole (1311), and the elastic member (156) is in a compressed state; when the driving member (153) is in the low speed position or the high speed position, one clutch pin (151) is inserted into the positioning hole (1311) corresponding to the second internal gear (131), and the other clutch pin (151) is located outside the positioning hole (1311).

2. The two-speed winch clutch according to claim 1, characterized in that: The clutch pin (151) is provided with a limit ring (155) on the outer side wall inside the housing (110), and one end of the elastic member (156) abuts against the base plate (154) and the other end abuts against the limit ring (155).

3. The two-speed winch clutch according to claim 1, characterized in that: The speed regulation assembly (150) further includes a handle (157) fixed to the end of the driving member (153) away from the housing (110).

4. A two-speed winch clutch according to claim 3, characterized in that: A gear position indicator disc (1571) is provided at the end of the handle (157) away from the housing (110). The gear position indicator disc (1571) is rotatably connected to the handle (157), the gear position indicator disc (1571) is fixedly connected to the housing (110), and an indicating block (1576) for cooperating with the gear position indicator disc (1571) is provided at the end of the handle (157) away from the housing (110).

5. A two-speed winch clutch according to claim 1, characterized in that: The first-stage planetary gear assembly (120) includes a first internal gear (122) fixedly connected inside the housing (110), two first base plates (124) respectively disposed at both ends of the first internal gear (122) and rotating synchronously, a first sun gear (121) embedded in the first internal gear (122), and a first planetary gear (123) rotatably connected between the two first base plates (124). The first sun gear (121) rotates with the output shaft of the motor (2). The first sun gear (121) and the first internal gear (122) are concentrically arranged. The first internal gear (122) and the first sun gear (121) are both meshed with the first planetary gear (123).

6. The double-speed winch clutch according to claim 5, characterized in that: The second-stage planetary gear assembly (130) includes a driving gear (133) rotating synchronously with the first base plate (124), two second internal gears (131) rotatably connected inside the housing (110) and concentrically arranged, three second base plates (132) parallel to each other and rotating synchronously, at least one second planetary gear (135) rotatably connected to the second base plate (132), a second sun gear (134) rotating synchronously with the driving gear (133) and meshed with the second planetary gear (135), a third planetary gear (137) rotatably connected to the second base plate (132), and a transmission gear (138) rotating synchronously with the second base plate (132). The second planetary gear (135) is meshed with the second internal gear (131) close to the first-stage planetary gear assembly (120), and the third planetary gear (137) is meshed with the second internal gear (131) away from the first-stage planetary gear assembly (120).

7. The two-speed winch clutch according to claim 6, wherein: The third-stage planetary gear assembly (140) includes a third internal gear (141) rotatably connected inside the housing (110), two third base plates (142) respectively disposed at both ends of the third internal gear (141), and at least one fourth planetary gear (144) rotatably connected between the two third base plates (142). The fourth planetary gear (144) is meshed with the transmission gear (138), and the fourth planetary gear (144) is meshed with the third internal gear (141).

8. A two-speed electric winch, comprising a motor (2) and a winch drum (3) rotatably connected to one end of the motor (2), characterized in that: It further includes a two-speed winch clutch (1) as described in any one of claims 1-7, wherein the input end of the two-speed winch clutch (1) rotates synchronously with the output shaft of the motor (2), and the output end of the two-speed winch clutch (1) drives the hoisting drum (3) to rotate.

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