Oil immersed electric winch

Abstract

The invention discloses an oil-immersed electric winch, comprising a winch drum, wherein two ends of the winch drum are symmetrically fixed with a side plate 1 and a side plate 2. The invention can place a driving motor, an electric brake and a reducer together inside a winch drum body to drive the winch drum, the winch drum is filled with anhydrous lubricating oil or insulating oil, and the oil is allowed to enter the driving motor, so that the oil is directly in contact with the driving motor rotor and stator winding, and the heat generated when they are working can be transferred to the inner wall of the drum body by the continuous rotation of the winch drum body, so that the heat dissipation effect of this structure is better, and the winch has good weather resistance. The winch of this structural form has many advantages such as compact structure, high transmission efficiency, low noise, long service life, stable operation, reliable operation, good sealing, small space occupation, easy installation, etc., which is very suitable for working in the high temperature and high humidity marine environment of the ship deck, and is particularly suitable for making underwater winches.

Description

Technical Field

[0001] The invention relates to the technical field of lifting equipment manufacturing, and in particular to an oil-immersed electric winch. Background Art

[0002] The traditional electric winch is a separate electric winch that drives the motor and reducer outside the winch drum. Due to the influence of factors such as the marine environment, high temperature and humidity on the deck, and seawater corrosion, the traditional electric winch is difficult to adapt. When the electric winch is running, due to the long-term operation of its drive motor, the temperature inside the body cannot be evacuated in time, the heat dissipation effect is extremely poor, and it will generate strong noise during operation. The transmission efficiency is low, and too much energy is consumed to drive the drive motor to operate, which shortens the service life of the winch and significantly increases the failure rate.

[0003] Oil-immersed electric winch is a new type of electric winch that places the motor, electric brake and reducer inside the winch drum. It is mainly used in underwater electric winches and unmanned boat electric winches, replacing the traditional motor and the separate electric winch with the reducer outside the winch drum. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: the current traditional electric winch is difficult to adapt to the harsh marine environment, which makes the electric winch easily restricted by the use environment, and its application scope has certain limitations. When the electric winch is running, due to the long-term operation of its drive motor, the temperature inside the body cannot be evacuated in time, the heat dissipation effect is extremely poor, and strong noise is generated during operation. The transmission efficiency is low and too much energy is consumed to drive the drive motor to operate, thereby shortening the service life of the winch and significantly increasing the failure rate.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An oil-immersed electric winch comprises a winch drum, wherein two ends of the winch drum are symmetrically fixed with side plates one and two, a driving motor is arranged inside the winch drum, one end of the driving motor is provided with a reducer, the output end of the driving motor is fixedly connected to the reducer, and a fixed bracket is sleeved on the outer side of the driving motor, one end of the reducer close to the driving motor is fixedly connected to the side wall of the fixed bracket, an end of the reducer away from the driving motor is fixedly provided with an output shaft, the output shaft penetrates through adjacent side plates and extends out of the outer side of the winch drum, and a transmission structure is provided at the end of the output shaft away from the reducer, a braking structure is provided at the end of the driving motor away from the reducer, and a supporting device is fixedly provided at the bottom end of the winch drum, the interior of the winch drum is filled with waterless lubricating oil or insulating oil, allowing oil to enter the interior of the driving motor and directly contact the rotor and stator winding of the driving motor.

[0007] Preferably, the transmission structure includes a roller support seat, and the end of the output shaft away from the reducer is rotatably connected to the side wall of the roller support seat through a bearing, the output shaft passes through the side wall of the roller support seat, and a winch device is provided on the side of the output shaft away from the reducer.

[0008] Preferably, the braking structure includes a brake, which is arranged on a side of the driving motor away from the reducer, and a hollow tail shaft is fixedly provided at one end of the fixed bracket away from the reducer, and the hollow tail shaft passes through the side wall of the second side plate and extends out of the winch drum. A fixed bracket support seat is fixed on the side wall of the second side plate, and the hollow tail shaft is rotatably connected to the fixed bracket support seat through bearing two, and a hollow tail shaft end cover is fixedly provided at one end of the hollow tail shaft away from the brake.

[0009] Preferably, the supporting device includes a base plate, two groups of locking clamps are symmetrically fixed on the top of the base plate, the bottom ends of the side panel one and the side panel two are respectively inserted between the corresponding groups of locking clamps, and the locking clamps and the base plate are fixedly connected together by fixing screws, an L-shaped support block is fixedly provided at one end of the base plate, and the top of the L-shaped support block is fixedly connected to the lower side wall of the roller support seat.

[0010] Preferably, the winch device includes a support plate, the end of the output shaft away from the reducer passes through the side wall of the support plate and is rotatably connected thereto through a bearing three, a sleeve is provided at the end of the output shaft close to the support plate, the sleeve is fixedly connected to the output shaft through a fixing screw one, a rotating rod is fixedly provided at the end of the sleeve away from the output shaft, a cavity is provided inside the rotating rod, and a sealing plate is fixedly connected to the end of the rotating rod away from the sleeve through a fixing screw two, a top plate is fixedly provided at the top of the support plate, a side plate is fixedly provided on one side of the top plate, and a cable is provided on the rotating rod.

[0011] Preferably, the winch drum, support plate, top plate, side plate, rotating rod, bottom plate, L-shaped support block and locking clamp block body are made of stainless steel.

[0012] The beneficial effects of the present invention are as follows: the drive motor, electric brake and reducer can be placed together inside the winch drum body to drive the winch drum. The inside of the winch drum is filled with waterless lubricating oil or insulating oil, and the oil is allowed to enter the drive motor, so that the oil is in direct contact with the drive motor rotor and stator winding, and the heat generated when they are working can be transferred to the inner wall of the drum body by the continuous rotation of the winch drum body. Therefore, this structure has better heat dissipation effect and good weather resistance. The winch of this structural form has many advantages such as compact structure, high transmission efficiency, low noise, long service life, stable operation, reliable operation, good sealing, small space occupation, easy installation, etc. It is very suitable for working in the high temperature and high humidity marine environment of the ship deck, and is particularly suitable for making underwater winches. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front structural schematic diagram of an oil-immersed electric winch proposed by the present invention;

[0014] Figure 2 It is a front view of the partial structure of the winch device;

[0015] Figure 3 for Figure 2 A magnified view of the structure in the middle;

[0016] Figure 4 for Figure 1 A magnified view of the structure in middle B.

[0017] In the figure: 1 output shaft, 2 bearing 1, 3 drum support seat, 4 winch drum, 5 reducer, 6 drive motor, 7 brake, 8 side plate 1, 9 hollow tail shaft, 10 fixed bracket support seat, 11 hollow tail shaft end cover, 12 bearing 2, 13 side plate 2, 14 bottom plate, 15 locking clamp, 16 fixing screw, 17 ferrule, 18 fixing screw 1, 19 rotating rod, 20 cavity, 21 sealing plate, 22 cable, 23 support plate, 24 top plate, 25 side plate, 26 fixing screw 2, 27 L-shaped support block, 28 fixing bracket, 29 bearing 3. DETAILED DESCRIPTION

[0018] 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 the embodiments.

[0019] Reference Figure 1-4, an oil-immersed electric winch, including a winch drum 4. This oil-immersed electric winch places a driving motor 6, an electric brake 7 and a reducer 5 together inside the winch drum 4. Different from the traditional electric winch, this arrangement makes the sealing inside the winch drum 4 better, and the stability of the equipment during operation is further improved. The two ends of the winch drum 4 are symmetrically fixed with a side plate 1 8 and a side plate 2 13. The winch drum 4 is provided with a driving motor 6 inside. The driving motor 6 is used as a power transmission source to ensure that the entire winch can obtain sufficient power. A reducer 5 is provided at one end of the driving motor 6. The output end of the driving motor 6 is fixedly connected to the reducer 5. The reducer 5 is used to effectively control the speed of the driving motor 6 during operation.

[0020] When the winch is reeling in or releasing the line, the rotation speed of the output shaft 1 can be accurately controlled, which ensures the quality of the winch winding the cable and avoids the cable being broken due to excessive force on the cable caused by the output shaft 1 rotating too fast, thereby further improving the safety of the winch during operation. Compared with the traditional electric winch, this structure has a higher degree of mechanization and is easier to control, thereby improving the safety factor in the lifting process and ensuring that the winch can operate safely and efficiently. At the same time, it can well reduce the probability of the output shaft 1 being driven by the drive motor 6 to idle, thereby reducing more energy consumption, saving energy consumption, being more environmentally friendly, meeting the purpose of enterprise production, and indirectly reducing the production cost of the enterprise, and the drive motor 6 The outer side of the reducer 5 is sleeved with a fixed bracket 28, and the end of the reducer 5 close to the drive motor 6 is fixedly connected to the side wall of the fixed bracket 28. With the help of the fixed bracket 28, the drive motor 6 inside it has a buffering and shock-absorbing effect. At the same time, the reducer 5 and the drive motor 6 are cleverly connected as a whole, and the transmission efficiency is higher. The end of the reducer 5 away from the drive motor 6 is fixedly provided with an output shaft 1. The output shaft 1 passes through the adjacent side plate 8 and extends out of the outside of the winch drum 4. A seal is provided at the position where the output shaft 1 contacts the side plate 8 to prevent external debris from entering the interior of the winch drum 4. At the same time, it can also prevent related substances (lubricating oil or insulating oil and other substances) inside the winch drum 4 from flowing out, thereby ensuring the normal operation of the equipment.

[0021] The end of the output shaft 1 away from the reducer 5 is provided with a transmission structure, and the transmission structure includes a drum support seat 3. The end of the output shaft 1 away from the reducer 5 is rotatably connected to the side wall of the drum support seat 3 through a bearing 2. The output shaft 1 penetrates the side wall of the drum support seat 3 and is driven by a drive motor 6 to rotate the winch drum 4, thereby winding the required main cables to achieve the purpose of lifting the relevant equipment. A winch device is provided on the side of the output shaft 1 away from the reducer 5. With the help of the winch device, it is combined with the output shaft 1 to reuse the power of the winch, so that the winch drum 4 rotates under the drive of the drive motor 6, and the output shaft 1 is used to make the winch device The arrangement can be used to wind some additional cables, thereby increasing the practicality of the entire oil-immersed electric winch. Considering that the original intention of the design of this electric winch is to be able to operate underwater, this design method is particularly suitable for land or non-underwater operations. The structure is more compact and easy to operate, which further improves the use efficiency. The winch device includes a support plate 23, and the end of the output shaft 1 away from the reducer 5 passes through the side wall of the support plate 23 and is rotatably connected to it through a bearing three 29. A ferrule 17 is provided at the end of the output shaft 1 close to the support plate 23. The ferrule 17 is fixedly connected to the output shaft 1 by a fixing screw one 18. A rotating rod 19 is fixedly provided at the end of the ferrule 17 away from the output shaft 1, and a cavity 20 is provided inside the rotating rod 19.

[0022] The end of the rotating rod 19 away from the ferrule 17 is fixedly connected to the sealing plate 21 by a fixing screw 26, a top plate 24 is fixedly provided at the top of the support plate 23, and a side plate 25 is fixedly provided on one side of the top plate 24. A cable 22 is provided on the rotating rod 19 (the rotating rod 19 here mainly plays the role of auxiliary lifting, and the main innovation point in the present invention is still mainly the winch drum 4 and its internal structure), a braking structure is provided at the end of the driving motor 6 away from the reducer 5, and the braking structure includes a brake 7, and the brake 7 is arranged on the side of the driving motor 6 away from the reducer 5. A hollow tail shaft 9 is fixedly provided at the end of the fixed bracket 28 away from the reducer 5, and the hollow tail shaft 9 passes through the side wall of the side plate 2 13 and extends out of the winch drum 4. A fixed bracket support seat 10 is fixed on the side wall of the side plate 2 13, and the hollow tail shaft 9 is rotatably connected to the fixed bracket support seat 10 through a bearing 2 12, and a hollow tail shaft end cover 11 is fixedly provided at the end of the hollow tail shaft 9 away from the brake 7 to seal the other side of the winch drum 4.

[0023] A supporting device is fixedly provided at the bottom end of the winch drum 4, and the supporting device includes a bottom plate 14, and two groups of locking clamps 15 are symmetrically fixed at the top of the bottom plate 14. The bottom ends of the side plates 18 and 13 are respectively inserted between the corresponding groups of locking clamps 15, and the locking clamps 15 and the bottom plate 14 are fixedly connected together by fixing screws 16. With the help of the locking clamps 15, the winch drum 4 can be effectively prevented from shaking too much in the horizontal direction when rotating, thereby enhancing the stability of its operation and avoiding excessive vibration. An L-shaped supporting block 27 is fixedly provided at one end of the bottom plate 14, and the top of the L-shaped supporting block 27 is connected to the roller The lower side wall of the drum support seat 3 is fixedly connected, and the interior of the winch drum 4 is filled with waterless lubricating oil or insulating oil, allowing the oil to enter the interior of the drive motor 6 and directly contact the rotor and stator windings of the drive motor 6. The winch drum 4, support plate 23, top plate 24, side plate 25, rotating rod 19, bottom plate 14, L-shaped support block 27, and locking clamp block 15 are made of stainless steel. Considering that this oil-immersed electric winch needs to be used in a marine environment, due to the high temperature, high humidity, seawater corrosion and other factors in the marine environment, the surface of the winch equipment is easily corroded. If things go on like this, it is easy to cause an operating failure of the winch.

[0024] In the present invention, when the oil-immersed electric winch is in operation, the oil-immersed electric winch places the driving motor 6, the electric brake 7 and the reducer 5 together inside the winch drum 4, the reducer 5 is inserted into the output shaft 1 of the winch drum 4, and the rear of the reducer 5 is fixed to the fixed bracket 28 of the reducer 5 through the flat key transmission, and the hollow tail shaft 9 on one side of the fixed bracket 28 of the reducer 5 passes through the inner ring of the bearing 2 on the side plate 8 at one end of the winch drum 4, and the two are interference fit.

[0025] And the hollow tail shaft 9 on one side of the fixed bracket 28 of the reducer 5 passes through the side plate 8 of the winch drum 4, and is fixed on the fixed bracket support seat 10 of the reducer 5 at the same time. The output shaft 1 at the other end of the winch drum 4 is fixed on the drum support seat 3 through the bearing 2. The winch drum 4 rotates around the hollow tail shaft 9 on one side of the fixed bracket 28 of the reducer 5. The driving power plug is fixed on the hollow tail shaft 9. The cable enters the inside of the winch drum 4 through the hollow tail shaft 9 to drive the motor 6 and the brake 7. If the winch is made into an underwater winch, the hollow tail shaft 9 of the fixed bracket 28 of the reducer 5 can also be connected to the balance oil bag through a hose, and the internal oil pressure of the winch drum 4 is balanced with the external water pressure. In addition, the driving power plug must use a deep-sea waterproof and watertight connector, so that the winch can work normally in the deep sea. The output shaft 1 of the winch can also be made into a hollow state for passing through a communication optical cable. After installing an electric slip ring or an optoelectronic slip ring, it can be made into a coaxial cable or optical cable winch for use.

[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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An oil-immersed electric winch, comprising a winch drum (4), characterized in that: The two ends of the winch drum (4) are symmetrically fixed with a side plate 1 (8) and a side plate 2 (13), respectively; a drive motor (6) is provided inside the winch drum (4); a reducer (5) is provided at one end of the drive motor (6); an output end of the drive motor (6) is fixedly connected to the reducer (5), and a fixed bracket (28) is sleeved on the outer side of the drive motor (6); an end of the reducer (5) close to the drive motor (6) is fixedly connected to the side wall of the fixed bracket (28); an output shaft (1) is fixedly provided at an end of the reducer (5) away from the drive motor (6); the output shaft (1) passes through the adjacent side plate 1 (8) and extends out of the outer side of the winch drum (4); and a transmission shaft (2) is provided at an end of the output shaft (1) away from the reducer (5). The invention relates to a structure in which a brake structure is provided at one end of the drive motor (6) away from the reducer (5), and a support device is fixedly provided at the bottom end of the winch drum (4); the interior of the winch drum (4) is filled with anhydrous lubricating oil or insulating oil, allowing the oil to enter the interior of the drive motor (6) and directly contact the rotor and stator winding of the drive motor (6); the transmission structure comprises a drum support seat (3); the end of the output shaft (1) away from the reducer (5) is rotatably connected to the side wall of the drum support seat (3) through a bearing 1 (2); the output shaft (1) penetrates the side wall of the drum support seat (3), and a winch device is provided on the side of the output shaft (1) away from the reducer (5); the reducer (5) is inserted into the output shaft (1) of the winch drum (4) and is driven by a flat key.

2. The oil-immersed electric winch according to claim 1, characterized in that: The braking structure comprises a brake (7), wherein the brake (7) is arranged on a side of the driving motor (6) away from the reducer (5), and a hollow tail shaft (9) is fixedly provided on one end of the fixed bracket (28) away from the reducer (5), wherein the hollow tail shaft (9) passes through the side wall of the second side plate (13) and extends out of the winch drum (4), and a fixed bracket support seat (10) is fixedly provided on the side wall of the second side plate (13), and the hollow tail shaft (9) is rotatably connected to the fixed bracket support seat (10) via a second bearing (12), and a hollow tail shaft end cover (11) is fixedly provided on the end of the hollow tail shaft (9) away from the brake (7).

3. The oil-immersed electric winch according to claim 1, characterized in that: The support device comprises a bottom plate (14), two groups of locking clamps (15) are symmetrically fixedly provided at the top of the bottom plate (14), the bottom ends of the first side plate (8) and the second side plate (13) are respectively inserted between the corresponding groups of locking clamps (15), and the locking clamps (15) and the bottom plate (14) are fixedly connected together by fixing screws (16), an L-shaped support block (27) is fixedly provided at one end of the bottom plate (14), and the top end of the L-shaped support block (27) is fixedly connected to the lower side wall of the roller support seat (3).

4. The oil-immersed electric winch according to claim 1, characterized in that: The winch device comprises a support plate (23), an end of the output shaft (1) away from the reducer (5) passes through the side wall of the support plate (23) and is rotatably connected to the support plate (23) via a third bearing (29), an end of the output shaft (1) close to the support plate (23) is provided with a sleeve (17), the sleeve (17) is fixedly connected to the output shaft (1) via a first fixing screw (18), an end of the sleeve (17) away from the output shaft (1) is fixedly provided with a rotating rod (19), a cavity (20) is provided inside the rotating rod (19), and an end of the rotating rod (19) away from the sleeve (17) is fixedly connected to a sealing plate (21) via a second fixing screw (26), a top plate (24) is fixedly provided at the top of the support plate (23), a side plate (25) is fixedly provided on one side of the top plate (24), and a cable (22) is provided on the rotating rod (19).

5. The oil-immersed electric winch according to claim 4, characterized in that: The winch drum (4), the support plate (23), the top plate (24), the side plate (25), the rotating rod (19), the bottom plate (14), the L-shaped support block (27), and the locking clamp block (15) are mainly made of stainless steel.

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