Winding drum with built-in speed reducer

Abstract

The utility model relates to the field of winding drums, in particular to a winding drum with a built-in speed reducer, and aims to solve the technical problems that the speed reducer of the winding drum is externally arranged, so that the risks of faults such as corrosion and dust blockage are easy to occur. According to the technical scheme, the winch winding drum with the built-in speed reducer comprises a winding drum part, an assembling end, a consolidation type platform assembly, an embedded type platform assembly and a speed reducer gear transmission set. The consolidation type platform assembly and the embedded platform assembly capable of being replaced adaptively serve as a carrying platform of the speed reducer, so that the speed reducer can stably operate in a winding drum piece, smooth operation of the winding drum of the winch is guaranteed, meanwhile, the speed reducer is tightly protected, contact with the external environment is reduced, the influence of the environment is small, and the service life of the winding drum piece is prolonged. The service life is prolonged, and the problem that the risks of faults such as rusting and dust blocking are likely to occur due to the fact that the speed reducer of the winding drum is externally arranged is solved.

Description

Technical Field

[0001] The utility model relates to the field of winch drums, in particular to a winch drum with a built-in reducer. Background Art

[0002] As a light and small lifting equipment that uses a drum to wrap a wire rope or chain to lift or pull heavy objects, the winch is widely used in various industrial production and construction engineering fields to transport workpieces and materials. Its winch drum is an important functional component on the machine body. The winch drum outputs power through the rotation of the rotor of the motor and rotates through the reduction unit composed of V-belts, shafts, gears, etc.

[0003] The reducers used in the existing winch drums are all externally mounted near the motor. Such reducers involve a gear set structure, have a certain volume, and occupy a relatively large installation space. In addition, the external reducer is also prone to rust, dust blockage and other fault risks.

[0004] Therefore, in order to solve the problem that the reducer of the above-mentioned winch drum is externally placed and is prone to the risk of rust, dust blockage and other failures, a winch drum with a built-in reducer can be designed to reduce the adverse effects of external environmental factors on the reducer. Utility Model Content

[0005] In order to overcome the problem that the reducer of the winch drum is externally placed, it is prone to the risk of rust, dust blockage and other failures.

[0006] The technical solution of the utility model is: a winch drum with a built-in reducer, comprising a drum member, an assembly end, a fixed platform component, an embedded platform component, and a reducer gear transmission group; the drum member is a hollow structure and is provided with assembly ends at both left and right ends, the assembly ends are connected to the body of the winch through a bearing structure, a fixed platform component is fixedly installed in the middle of the drum member, an embedded platform component is plugged into the fixed platform component, a reducer gear transmission group with multi-gear meshing transmission is installed on the embedded platform component, and the output end of the reducer gear transmission group is plugged and locked with the assembly end on one side of the drum member.

[0007] Preferably, the fixed platform component and the embedded platform component are fixed by magnetic locking and rotating lock to form an assembly relationship. The embedded platform component can be adaptively replaced according to the reducer gear transmission group with different gear meshing transmission relationships or different numbers of gears. The reducer gear transmission group runs inside the drum component to drive the drum component to rotate on the winch to reel in or release the cable wound on the drum component.

[0008] Preferably, an annular limit platform is provided inside the assembly end, and eight through holes are equidistantly provided on the surface of the limit platform around itself. The output end of the reducer gear transmission group is located on the limit platform on one side. The limit platform serves as a support for the output end of the reducer gear transmission group, limiting the movement of the reducer gear transmission group along the axis direction of the reel member to ensure its operating stability.

[0009] Preferably, the fixed platform component includes a support ring, a connecting frame, a slot, and a limit plate; the support ring is a circular ring structure, the support ring is located at the inner center of the reel member and the center of the circle overlaps with the center of the circle of the reel member, eight connecting frames are fixedly connected between the outer wall of the support ring and the inner wall of the reel member, four slots are evenly spaced around the inner wall of the support ring, and four rotatable limit plates are installed on the side walls of the support ring facing the limit platform. While the support ring and the connecting frame form an installation platform for the embedded platform component, they also support the middle part of the hollow structure of the reel member, which helps to avoid the reel member from being concave and deformed in the middle part. When the limit plate rotates to the surface of the embedded platform component, it limits it to prevent the embedded platform component from slipping out of the support ring.

[0010] Preferably, the embedded platform component includes a liner, a rail, an assembly hole, and a magnetic ring; the liner is a pancake-shaped structure and is inserted into the support ring, and four rails corresponding to and matching the slots are equidistantly connected around the outer wall of the liner. The surface of the liner is provided with assembly holes that are compatible with the gear transmission relationship of the reducer gear transmission group, and magnetic rings that are magnetically adsorbed and fixed to the limit plate are installed on the side walls on both sides of the liner. The liner is stably installed in the support ring through the one-to-one correspondence between the rails and the slots, and relative rotation will not occur. After the limit plate rotates to its surface, the magnetic ring and its magnetic adsorption effect prevent the limit plate from shaking and rotating out due to external force.

[0011] Preferably, the reducer gear transmission group includes an external gear and a primary positioning rod; the external gear is an annular structure and the tooth groove is on the annular inner wall, the external gear is close to the surface of the limit platform on one side, and eight primary positioning rods are fixedly connected to the surface of the external gear. The primary positioning rods are inserted into the through holes one by one and extend to the assembly end on the other side. The end of the primary positioning rod away from the external gear is threadedly connected to the fixing nut. The external gear is locked with the limit platform through the insertion of the primary positioning rod and the through hole, and can output power to the reel member. After tightening the nut, the primary positioning rod cannot fall out of the through hole.

[0012] Preferably, the reducer gear transmission group also includes a driving gear, a secondary positioning rod, an electric motor, an intermediate gear, and a tertiary positioning rod; the outer wall of the driving gear has a tooth groove and is located at the center of the outer gear, one side of the driving gear is movably connected with a secondary positioning rod inserted in the assembly hole in the center of the liner, one side of the liner is equipped with a power output element and a motor fixedly connected to the secondary positioning rod, the intermediate gear is meshingly connected to the tooth groove on the inner wall of the outer gear and the tooth groove on the outer wall of the driving gear, one side of the intermediate gear is movably connected with a tertiary positioning rod inserted in another corresponding assembly hole on the liner, one end of the tertiary positioning rod away from the intermediate gear is threadedly connected to a fixing nut, the motor outputs power to the driving gear, and the driving gear drives the intermediate gear to rotate, forming the first deceleration, and then the intermediate gear drives the outer gear to rotate, forming the second deceleration. According to the deceleration needs of different reel parts, multiple groups of intermediate gears can be set, and their diameters can also be adjusted.

[0013] Preferably, a wire mesh frame is provided on both sides of the outer wall of the reel near the assembly end. The wire mesh frame is a cylindrical frame structure wrapped with a metal wire mesh. A support frame is installed on one side of the support ring, and a blower with an air outlet facing the motor is installed between the ends of the support frame. Cables are wrapped around the outside of the wire mesh frame, and air passes through the gaps between the cables. A part of the dust is screened out by the wire mesh. The blower draws air in to blow the reducer gear transmission group, which helps to dissipate heat and remove dust.

[0014] Beneficial effects of the utility model:

[0015] 1. The fixed platform component and the adaptable and replaceable embedded platform component are used as the carrier platform of the reducer, so that the reducer can run stably inside the drum, ensuring the smooth operation of the drum of the winch. At the same time, the reducer is strictly protected, reducing contact with the external environment, being less affected by the environment, and the service life is improved;

[0016] 2. The blower installed on the fixed platform assembly cooperates with the wire mesh frame on the reel to draw in cold air, cool the reducer gear transmission group and blow and remove dust by wind to ensure the stable operation of the reducer gear transmission group;

[0017] 3. The assembly between the fixed platform component and the embedded platform component adopts the method of magnetic attraction and rotary lock limit, and does not require bolt fastening, making installation and disassembly more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The first three-dimensional structure schematic diagram of the winch drum with a built-in reducer of the utility model is shown;

[0019] Figure 2 The second three-dimensional structure schematic diagram of the winch drum with a built-in reducer of the utility model is shown;

[0020] Figure 3 The diagram shows a vertical section of the three-dimensional structure of the winch drum with a built-in reducer of the utility model;

[0021] Figure 4 The present invention is a schematic diagram of a cross-sectional three-dimensional structure of a winch drum with a built-in speed reducer;

[0022] Figure 5 The three-dimensional structure diagram of the winch drum with built-in reducer of the utility model is shown;

[0023] Figure 6 The three-dimensional structure diagram of the winch drum fixed platform assembly with built-in reducer of the utility model is shown;

[0024] Figure 7 The three-dimensional structure diagram of the winch drum embedded platform assembly with built-in reducer of the utility model is shown;

[0025] Figure 8 Shown is a schematic diagram of the structure of the winch drum with a built-in reducer connected to the reducer gear transmission group of the utility model.

[0026] Explanation of the reference numerals in the accompanying drawings: 1. reel member; 2. assembly end; 6. limit platform; 7. through hole; 8. wire mesh frame; 9. support frame; 10. blower; 301. support ring; 302. connecting frame; 303. slot; 304. limit plate; 401. liner; 402. rail; 403. assembly hole; 404. magnetic ring; 501. external gear; 502. primary positioning rod; 503. driving gear; 504. secondary positioning rod; 505. motor; 506. intermediate gear; 507. tertiary positioning rod. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] See also Figure 1-5The utility model provides an embodiment: a winch drum with a built-in reducer, comprising a drum member 1, an assembly end 2, a fixed platform component, an embedded platform component, and a reducer gear transmission group; the drum member 1 is a hollow structure and is provided with assembly ends 2 at both left and right ends, the assembly end 2 is connected to the body of the winch through a bearing structure, a fixed platform component is fixedly installed in the middle of the drum member 1, an embedded platform component is plugged into the fixed platform component, a reducer gear transmission group with multi-gear meshing transmission is installed on the embedded platform component, the output end of the reducer gear transmission group is plugged and locked with the assembly end 2 on one side of the drum member 1, an annular limit platform 6 is provided in the assembly end 2, and the surface of the limit platform 6 There are eight through holes 7 equidistantly arranged around the reducer gear transmission group. The output end of the reducer gear transmission group is on a limit platform 6 on one side. The fixed platform component and the embedded platform component are fixed by magnetic locking and rotating lock to form an assembly relationship. According to the reducer gear transmission group with different gear meshing transmission relationships or different numbers of gears, the embedded platform component can be adaptively replaced. The reducer gear transmission group runs inside the drum member 1, drives the drum member 1 to rotate on the winch, and reels or releases the cable wound on the drum member 1. The limit platform 6 serves as a support member at the output end of the reducer gear transmission group, limiting the movement of the reducer gear transmission group along the axis direction of the drum member 1 to ensure its operating stability.

[0029] See also Figure 6-8In this embodiment, the fixed platform component includes a support ring 301, a connecting frame 302, a slot 303, and a limit plate 304; the support ring 301 is a circular ring structure, the support ring 301 is located at the inner center of the reel member 1 and the center of the circle overlaps with the center of the reel member 1, eight connecting frames 302 are fixedly connected between the outer wall of the support ring 301 and the inner wall of the reel member 1, four slots 303 are evenly spaced around the inner wall of the support ring 301, and four rotatable limit plates 304 are installed on the side walls of the support ring 301 facing the limit platform 6, and the embedded platform component includes a liner 401, a rail 402, an assembly hole 403, and a magnetic ring 404; the liner 401 is a round pancake structure and is inserted into the support ring 301, and four rails 402 corresponding to and matching the slots 303 are evenly spaced around the outer wall of the liner 401, and the liner 40 1 is provided with an assembly hole 403 adapted to the gear transmission relationship of the reducer gear transmission group, and magnetic rings 404 are installed on the side walls of the liner 401 on both sides, which are fixed to the limit plate 304 by magnetic attraction. The reducer gear transmission group includes an external gear 501 and a primary positioning rod 502; the external gear 501 is an annular structure and the tooth groove is on the inner wall of the annular structure. The external gear 501 is close to the surface of the limit platform 6 on one side, and eight primary positioning rods 502 are fixedly connected to the surface of the external gear 501. The primary positioning rods 502 are plugged into the through holes 7 one by one and extend to the assembly end 2 on the other side. One end of the primary positioning rod 502 away from the external gear 501 is threadedly connected to a fixing nut. The reducer gear transmission group also includes a driving gear 503, a secondary positioning rod 504, a motor 505, an intermediate gear 506, and a tertiary positioning rod 507;The outer wall of the driving gear 503 has a tooth groove and is located at the center of the outer gear 501. One side of the driving gear 503 is movably connected with a secondary positioning rod 504 inserted in the assembly hole 403 at the center of the liner 401. One side of the liner 401 is equipped with a motor 505 with a power output element fixedly connected to the secondary positioning rod 504. The intermediate gear 506 is meshed and connected to the tooth groove on the inner wall of the outer gear 501 and the tooth groove on the outer wall of the driving gear 503. One side of the intermediate gear 506 is movably connected with a tertiary positioning rod 507 inserted in another corresponding assembly hole 403 on the liner 401. The end of the tertiary positioning rod 507 away from the intermediate gear 506 is threadedly connected to a fixing nut. The support ring 301 and the connecting frame 302 constitute the installation platform of the embedded platform component, and at the same time, it supports the middle part of the hollow structure of the reel member 1, which helps to prevent the reel member 1 from being sunken and deformed in the middle. When the limit plate 304 rotates to the surface of the embedded platform component, It plays a limiting role to prevent the embedded platform assembly from sliding out of the support ring 301. The liner 401 is stably installed in the support ring 301 through the one-to-one corresponding plug-in connection between the clamping rail 402 and the clamping groove 303, and relative rotation will not occur. After the limit plate 304 rotates to its surface, the magnetic attraction ring 404 and its magnetic attraction function prevent the limit plate 304 from shaking and rotating out due to external force. The outer gear 501 is locked with the limit platform 6 through the plug-in connection between the primary positioning rod 502 and the through hole 7, and can output power to the reel 1. After tightening the nut, the primary positioning rod 502 cannot be disengaged from the through hole 7. The motor 505 outputs power to the driving gear 503, and the driving gear 503 drives the intermediate gear 506 to rotate, forming the first deceleration. Then, the intermediate gear 506 drives the outer gear 501 to rotate, forming the second deceleration. According to the deceleration requirements of different reel parts 1, multiple groups of intermediate gears 506 can be set, and their diameters can also be adjusted. ;

[0030] See also Figure 5-6 In this embodiment, a wire mesh skeleton 8 is provided on both sides of the outer wall of the reel member 1 near the assembly end 2. The wire mesh skeleton 8 is a cylindrical frame structure wrapped with a metal wire mesh. A support frame 9 is installed on one side of the support ring 301. A blower 10 with an air outlet facing the motor 505 is installed between the ends of the support frame 9. Cables are wrapped around the outside of the wire mesh skeleton 8. Air passes through the gaps between the cables and a part of the dust is screened out by the wire mesh. The blower 10 draws in air to blow the reducer gear transmission group, which is helpful for heat dissipation and dust removal.

[0031] When working, the user first selects an embedded platform component that is compatible with the reducer gear transmission group, matches the card rail 402 with the card slot 303 one by one, inserts the liner 401 into the support ring 301, and then rotates the limit plate 304 to the surface of the liner 401, and the magnetic ring 404 magnetically absorbs and fixes the limit plate 304;

[0032] Next, the outer gear 501 is inserted into the through hole 7 through the primary positioning rod 502 to form a lock with the limit platform 6, and the other end of the primary positioning rod 502 is tightened with a nut to fix it, and then the driving gear 503 and the intermediate gear 506 are respectively installed and fixed with the corresponding through hole 7 on the liner 401 through the secondary positioning rod 504 and the tertiary positioning rod 507;

[0033] The starting motor 505 outputs power to the driving gear 503, and the driving gear 503 drives the intermediate gear 506 to rotate, performing the first deceleration. Then, the intermediate gear 506 drives the outer gear 501 to rotate, performing the second deceleration. The reel 1 rotates synchronously under the transmission action of the outer gear 501 to reel in or lower the cable. While the equipment is running, the blower 10 draws air through the wire mesh frame 8 to dissipate wind heat and remove dust from the reducer gear transmission group.

[0034] Through the above steps, the fixed platform component and the adaptable and replaceable embedded platform component are used as the mounting platform of the reducer, so that the reducer can run stably inside the drum component 1, ensuring the smooth operation of the winch drum. At the same time, the reducer is strictly protected to reduce the contact with the external environment, is less affected by the environment, and has a longer service life, so as to solve the problem that the reducer of the winch drum is externally placed and is prone to the risk of rust, dust blockage and other faults.

[0035] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A winch drum with a built-in speed reducer, comprising a drum member (1) and an assembly end (2); characterized in that: It also includes a fixed platform component, an embedded platform component, and a reducer gear transmission group; the drum component (1) is a hollow structure and is provided with assembly ends (2) at both left and right ends, the assembly ends (2) are connected to the body of the winch through a bearing structure, a fixed platform component is fixedly installed in the middle of the drum component (1), an embedded platform component is plugged into the fixed platform component, a reducer gear transmission group with multi-gear meshing transmission is installed on the embedded platform component, and the output end of the reducer gear transmission group is plugged and locked with the assembly end (2) on one side of the drum component (1).

2. The winch drum with a built-in speed reducer according to claim 1, characterized in that: An annular limiting platform (6) is arranged inside the assembly end (2), and eight through holes (7) are evenly spaced around the surface of the limiting platform (6). The output end of the reducer gear transmission group is located on the limiting platform (6) on one side.

3. A hoisting drum with a built-in reducer according to claim 2, characterized in that: The fixed platform component comprises a supporting ring (301), a connecting frame (302), a slot (303), and a limit plate (304); the supporting ring (301) is a circular ring structure, the supporting ring (301) is located at the inner center of the reel (1) and the center of the circle overlaps with the center of the circle of the reel (1), eight connecting frames (302) are fixedly connected between the outer wall of the supporting ring (301) and the inner wall of the reel (1), four slots (303) are equidistantly arranged around the inner wall of the supporting ring (301), and four rotatable limit plates (304) are respectively installed on the side walls of the supporting ring (301) facing the limit platform (6).

4. The winch drum with a built-in speed reducer according to claim 3, characterized in that: The embedded platform component comprises a liner (401), a clamping rail (402), an assembly hole (403), and a magnetic attraction ring (404); the liner (401) is a round pancake-shaped structure and is inserted into a supporting ring (301); four clamping rails (402) corresponding to and matching the clamping grooves (303) are connected equidistantly around the outer wall of the liner (401); an assembly hole (403) matching the gear transmission relationship of the reducer gear transmission group is opened on the surface of the liner (401); and magnetic attraction rings (404) fixed to the limit plates (304) by magnetic attraction are installed on the side walls of both sides of the liner (401).

5. The winch drum with a built-in speed reducer according to claim 4, characterized in that: The reducer gear transmission group comprises an external gear (501) and a primary positioning rod (502); the external gear (501) is an annular structure and the tooth groove is located on the annular inner wall; the external gear (501) is in close contact with the surface of a limit platform (6) on one side; eight primary positioning rods (502) are fixedly connected to the surface of the external gear (501); the primary positioning rods (502) are inserted into the through holes (7) one by one and extend to the assembly end (2) on the other side; and one end of the primary positioning rod (502) away from the external gear (501) is threadedly connected to a fixing nut.

6. The winch drum with a built-in speed reducer according to claim 5, characterized in that: The reducer gear transmission group also includes a driving gear (503), a secondary positioning rod (504), a motor (505), an intermediate gear (506), and a tertiary positioning rod (507); the driving gear (503) has a tooth groove on its outer wall and is located at the center of the outer gear (501); one side of the driving gear (503) is movably connected to the secondary positioning rod (504) inserted into the assembly hole (403) at the center of the liner (401); one side of the liner (401) is provided with a motor (505) with a power output element fixedly connected to the secondary positioning rod (504); the intermediate gear (506) is meshedly connected to the tooth groove on the inner wall of the outer gear (501) and the tooth groove on the outer wall of the driving gear (503); one side of the intermediate gear (506) is movably connected to the tertiary positioning rod (507) inserted into another corresponding assembly hole (403) on the liner (401); one end of the tertiary positioning rod (507) away from the intermediate gear (506) is threadedly connected to a fixing nut.

7. The winch drum with a built-in speed reducer according to claim 6, characterized in that: A wire mesh frame (8) is provided on both sides of the outer wall of the reel member (1) near the assembly end (2); the wire mesh frame (8) is a cylindrical frame structure wrapped with a metal wire mesh; a support frame (9) is installed on one side of the support ring (301); and a blower (10) with an air outlet facing the motor (505) is installed between the ends of the support frame (9).

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