Double-rectangular-spring lifting winch

Abstract

The utility model belongs to the technical field of lifting winches, and particularly relates to a double-rectangular-spring lifting winch which comprises a base, a motor support and a gearbox support, and a lifting device is arranged between the motor support and the gearbox support. According to the double-rectangular-spring lifting winch, the two rectangular springs are arranged, the rectangular springs belong to square wires with the square cross sections, the strength of the springs made of the square wires is larger than the elastic force of common springs, the deformation resistance and the fracture resistance are better, and the double-rectangular-spring lifting winch better conforms to the scene with the limited installation space; the requirements for high-speed compression and overweight load are met, the durability and applicability of equipment in use are improved, the overall sealing performance of the device is improved by arranging the sealing assembly, the situation that rainwater permeates into the motor and the gearbox assembly in rainy and snowy weather, and consequently the motor and the gearbox assembly are damaged is avoided, and the service life of the device is prolonged. And the durability and the service life of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting winches, in particular to a double rectangular spring lifting winch. Background Art

[0002] Winch is a commonly used traction tool. At present, there are many types of winches at home and abroad, which are widely used in leisure off-road, engineering rescue, metallurgy, exploration, forestry, fishery, petroleum, mineral mining, etc. Among them, the market demand for lifting winches is also increasing. The biggest difference between lifting winches and leisure off-road winches is that the working condition of lifting winches is vertical lifting, while leisure off-road winches can only pull heavy objects horizontally. Vertical lifting requires higher performance of winches. The main structures are motors, drums, brakes, reducers, etc., especially the braking performance of winches. It is also particularly important when the steel wire is fixed to the drum at the beginning. The winches in the prior art are not equipped with a device to fix the steel wire, which makes the initial fixation between the steel wire and the drum a big problem.

[0003] For example, Chinese patent publication No. CN212269310U discloses an electric winch for lifting. When in use, when the steel wire is fixed to the drum, the steel wire passes through the fixing groove, and the upper and lower fixing rods press the steel wire through the fixing plate, and then the limit bolt is fixedly screwed with the limit groove to fix the steel wire, wherein the limit groove has a certain depth so that the fixing rod can press steel wires of different diameters, thereby improving the practicality of the winch. A positioning bolt is also provided on the nut, and the positioning bolt passes through the nut and is connected with the fixing rod; the positioning bolt can prevent the limit bolt from loosening after being fixed, thereby affecting the fixation of the steel wire.

[0004] However, the motor of the electric winch for lifting in the above application is exposed to the outdoor environment. When it rains, rainwater may flow into the interior of the motor through the gap between the motor and the drum, thereby causing damage to the motor. Therefore, there are certain limitations.

[0005] For this reason, we urgently need to provide a double rectangular spring lifting winch. Utility Model Content

[0006] The purpose of the utility model is to provide a double rectangular spring lifting winch to solve the problem that the electric winch for lifting proposed in the above-mentioned background technology, whose motor is exposed to the outdoor environment, may have rainwater enter the interior of the motor through the gap between the motor and the drum when it rains, thereby causing damage to the motor.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double rectangular spring lifting winch, comprising a base, a motor bracket and a gearbox bracket, wherein the motor bracket and the gearbox bracket are respectively fixedly connected to the left and right sides of the upper surface of the base, and a lifting device is arranged between the motor bracket and the gearbox bracket.

[0008] The lifting device includes a motor, a positioning assembly, a transmission assembly, a gearbox assembly, and a sealing assembly. The motor is installed on the left side of the motor bracket, and its head extends into the interior of the transmission assembly. The three groups of positioning assemblies are respectively fixedly connected to the top front and rear ends and the bottom center of the motor bracket and the gearbox bracket. The transmission assembly is connected to the output end of the motor, the gearbox assembly is installed at the right end of the transmission assembly, and the sealing assembly is installed between the motor and the transmission assembly and the gearbox assembly.

[0009] A further improvement is that the positioning assembly includes a positioning rod, a hexagonal screw, and a spring washer. The positioning rod is installed between the motor bracket and the gearbox bracket. The two hexagonal screws are respectively threadedly connected to the two ends of the positioning rod. The two spring washers are respectively placed between the hexagonal screw and the positioning rod. The setting of the positioning rod connects the motor bracket and the gearbox bracket, improves the operating stability of the device, and when the device needs to be transferred, the positioning rod can be lifted and transferred quickly, which is more convenient to use.

[0010] A further improvement is that the transmission assembly includes a first coupling, a rectangular spring, a second coupling, a compression spring, a hexagonal transmission rod, and a roller mechanism. The first coupling is connected to the output end of the motor, and the two rectangular springs are respectively installed on the upper and lower sides of the first coupling. The second coupling is connected to the right side of the first coupling, the compression spring is installed on the outside of the second coupling, and the hexagonal transmission rod is connected to the right side of the second coupling. The roller mechanism is installed between the motor bracket and the gearbox bracket through a sealed bearing. The first coupling is driven by the motor to operate, thereby driving the second coupling to operate, thereby driving the hexagonal transmission rod to operate, and then driving the roller to operate to complete the lifting work. Two rectangular springs are provided because the rectangular spring belongs to a square wire with a square cross-section. The spring made of square wire has greater elasticity than ordinary springs, and its anti-deformation and anti-fracture performance are also better, which is more suitable for scenarios with limited installation space, meets the requirements of high-speed compression and overload, and improves the durability and applicability of the equipment itself.

[0011] A further improvement is that the sealing assembly includes an A-type sealing ring, a wheel hub bearing, and a plum blossom-shaped sealing ring, the A-type sealing ring is installed at the left connection between the motor and the transmission assembly, the wheel hub bearing is installed at the connection between the transmission assembly and the gearbox assembly, and the plum blossom-shaped sealing ring is installed on the outside of the wheel hub bearing.

[0012] A further improvement is that the A-type sealing ring and the plum blossom-shaped sealing ring are both made of nitrile rubber, the motor is fixedly connected to the motor bracket, and an A-type sealing ring is also arranged on the outside thereof, and a hub bearing and a plum blossom-shaped sealing ring are installed at the connection between the transmission assembly and the gearbox assembly, thereby improving the overall sealing of the device, avoiding rainwater from seeping into the interior of the motor and gearbox assembly in rainy and snowy weather, causing damage thereto, thereby improving the durability and service life of the device.

[0013] A further improvement is that a steel wire rope is wound around the outer surface of the drum mechanism, and a hook is fixedly connected to the bottom of the steel wire rope. The steel wire rope is pulled by the rotation of the drum mechanism, thereby lifting the objects suspended at the bottom of the hook.

[0014] A further improvement is that a threading hole is formed through the front end of the upper surface of the base, and the steel wire rope passes through the inside of the threading hole, which plays a certain limiting and fixing function, thereby preventing the steel wire rope from shaking disorderly during lifting, thereby causing the wound steel wire rope to become disordered or even entangled and knotted.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The double rectangular spring lifting winch has two rectangular springs set in the transmission assembly. The rectangular spring is a square wire with a square cross-section. The spring made of square wire has greater elasticity than ordinary springs, and its deformation and fracture resistance are also better. It is more suitable for scenarios with limited installation space, meets the needs of high-speed compression and overload, and improves the durability and applicability of the equipment itself.

[0017] 2. The double rectangular spring lifting winch has a motor that is fixedly connected to a motor bracket, and an A-type sealing ring is provided on its outer side. A hub bearing and a plum blossom-shaped sealing ring are installed at the connection between the transmission assembly and the gearbox assembly, thereby improving the overall sealing of the device and preventing rainwater from seeping into the interior of the motor and gearbox assembly in rainy and snowy weather, causing damage thereto, thereby improving the durability and service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 This is a front view structural diagram of the lifting device of the utility model;

[0020] Figure 3 This is a schematic cross-sectional structural diagram of the lifting device of the utility model;

[0021] Figure 4It is a partial cross-sectional structural schematic diagram of the lifting device of the utility model.

[0022] In the figure: 1. base; 2. motor bracket; 3. gearbox bracket; 301. motor; 302. positioning assembly; 3021. positioning rod; 3022. hexagonal screw; 3023. spring washer; 303. transmission assembly; 3031. first coupling; 3032. rectangular spring; 3033. second coupling; 3034. compression spring; 3035. hexagonal transmission rod; 3036. drum mechanism; 304. gearbox assembly; 305. sealing assembly; 3051. A-type sealing ring; 3052. wheel hub bearing; 3053. plum blossom sealing ring; 401. wire rope; 402. hook. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0025] A double rectangular spring lifting winch comprises a base 1, a motor bracket 2 and a gearbox bracket 3. The motor bracket 2 and the gearbox bracket 3 are respectively fixedly connected to the left and right sides of the upper surface of the base 1, and a lifting device is arranged between the motor bracket 2 and the gearbox bracket 3.

[0026] The lifting device includes a motor 301, a positioning assembly 302, a transmission assembly 303, a gearbox assembly 304, and a sealing assembly 305. The motor 301 is installed on the left side of the motor bracket 2, and its head extends into the interior of the transmission assembly 303. Three groups of positioning assemblies 302 are fixedly connected to the top front and rear ends and the bottom center of the motor bracket 2 and the gearbox bracket 3, respectively. The transmission assembly 303 is connected to the output end of the motor 301, the gearbox assembly 304 is installed at the right end of the transmission assembly 303, and the sealing assembly 305 is installed between the motor 301 and the transmission assembly 303 and the gearbox assembly 304.

[0027] The positioning assembly 302 includes a positioning rod 3021, a hexagonal screw 3022, and a spring washer 3023. The positioning rod 3021 is installed between the motor bracket 2 and the gearbox bracket 3. The two hexagonal screws 3022 are respectively threadedly connected to the two ends of the positioning rod 3021. The two spring washers 3023 are respectively placed between the hexagonal screws 3022 and the positioning rod 3021. The setting of the positioning rod 3021 connects the motor bracket 2 and the gearbox bracket 3, improves the operating stability of the device, and when the device needs to be moved, the positioning rod 3021 can be lifted and moved quickly, which is more convenient to use.

[0028] The transmission assembly 303 includes a first coupling 3031, a rectangular spring 3032, a second coupling 3033, a compression spring 3034, a hexagonal transmission rod 3035, and a roller mechanism 3036. The first coupling 3031 is connected to the output end of the motor 301. Two rectangular springs 3032 are respectively installed on the upper and lower sides of the first coupling 3031. The second coupling 3033 is connected to the right side of the first coupling 3031. The compression spring 3034 is installed on the outside of the second coupling 3033. The hexagonal transmission rod 3035 is connected to the right side of the second coupling 3033. The roller mechanism 3036 is installed on the motor bracket 2 through a sealed bearing. Between the gearbox bracket 3, the first coupling 3031 is driven by the motor 301 to operate, which in turn drives the second coupling 3033 to operate, thereby driving the hexagonal transmission rod 3035 to operate, and then driving the roller mechanism 3036 to operate to complete the lifting work, and two rectangular springs 3032 are set. Because the rectangular spring 3032 is a square wire with a square cross-section, the spring made of square wire has greater elasticity than ordinary springs, and has better resistance to deformation and fracture, which is more suitable for scenarios with limited installation space, meets the requirements of high-speed compression and overweight load, and improves the durability and applicability of the equipment itself.

[0029] The sealing assembly 305 includes an A-type sealing ring 3051, a hub bearing 3052, and a plum blossom-shaped sealing ring 3053. The A-type sealing ring 3051 is installed at the left connection between the motor 301 and the transmission assembly 303, the hub bearing 3052 is installed at the connection between the transmission assembly 303 and the gearbox assembly 304, and the plum blossom-shaped sealing ring 3053 is installed on the outer side of the hub bearing 3052.

[0030] The A-type sealing ring 3051 and the plum blossom-shaped sealing ring 3053 are both made of nitrile rubber. The motor 301 is fixedly connected to the motor bracket 2, and an A-type sealing ring 3051 is also arranged on the outside thereof. A hub bearing 3052 and a plum blossom-shaped sealing ring 3053 are installed at the connection between the transmission assembly 303 and the gearbox assembly 304, thereby improving the overall sealing of the device and preventing rainwater from seeping into the interior of the motor 301 and the gearbox assembly 304 in rainy and snowy weather, causing damage thereto, thereby improving the durability and service life of the device.

[0031] A steel wire rope 401 is wound around the outer surface of the drum mechanism 3036 , and a hook 402 is fixedly connected to the bottom of the steel wire rope 401 . The steel wire rope 401 is pulled by the rotation of the drum mechanism 3036 , thereby lifting the objects suspended at the bottom of the hook 402 .

[0032] A threading hole is formed through the front end of the upper surface of the base 1, and the wire rope 401 passes through the threading hole, which plays a certain limiting and fixing function to prevent the wire rope 401 from shaking disorderly during lifting, thereby causing the wound wire rope to be disordered or even entangled and knotted.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A double rectangular spring lifting winch, comprising a base (1), a motor bracket (2) and a gearbox bracket (3), wherein the motor bracket (2) and the gearbox bracket (3) are respectively fixedly connected to the left and right sides of the upper surface of the base (1), characterized in that: A lifting device is provided between the motor bracket (2) and the gearbox bracket (3); The lifting device comprises a motor (301), a positioning assembly (302), a transmission assembly (303), a gearbox assembly (304), and a sealing assembly (305); the motor (301) is mounted on the left side of the motor bracket (2), and its head extends into the interior of the transmission assembly (303); three groups of the positioning assemblies (302) are respectively fixedly connected to the front and rear ends and the bottom center of the top of the motor bracket (2) and the gearbox bracket (3); the transmission assembly (303) is connected to the output end of the motor (301); the gearbox assembly (304) is mounted on the right end of the transmission assembly (303); and the sealing assembly (305) is mounted between the motor (301) and the transmission assembly (303) and the gearbox assembly (304).

2. A double rectangular spring lifting winch according to claim 1, characterized in that: The positioning assembly (302) comprises a positioning rod (3021), a hexagonal screw (3022), and a spring washer (3023); the positioning rod (3021) is installed between the motor bracket (2) and the gearbox bracket (3); the two hexagonal screws (3022) are respectively threadedly connected to the two ends of the positioning rod (3021); and the two spring washers (3023) are respectively placed between the hexagonal screw (3022) and the positioning rod (3021).

3. A double rectangular spring lifting winch according to claim 2, characterized in that: The transmission assembly (303) comprises a first coupling (3031), a rectangular spring (3032), a second coupling (3033), a compression spring (3034), a hexagonal transmission rod (3035), and a roller mechanism (3036); the first coupling (3031) is connected to the output end of the motor (301); the two rectangular springs (3032) are respectively installed on the upper and lower sides of the first coupling (3031); the second coupling (3033) is connected to the right side of the first coupling (3031); the compression spring (3034) is installed on the outside of the second coupling (3033); the hexagonal transmission rod (3035) is connected to the right side of the second coupling (3033); and the roller mechanism (3036) is installed between the motor bracket (2) and the gearbox bracket (3) through a sealed bearing.

4. A double rectangular spring lifting winch according to claim 3, characterized in that: The sealing assembly (305) comprises an A-type sealing ring (3051), a wheel hub bearing (3052), and a plum blossom-shaped sealing ring (3053); the A-type sealing ring (3051) is installed at the left connection between the motor (301) and the transmission assembly (303); the wheel hub bearing (3052) is installed at the connection between the transmission assembly (303) and the gearbox assembly (304); and the plum blossom-shaped sealing ring (3053) is installed at the outer side of the wheel hub bearing (3052).

5. A double rectangular spring lifting winch according to claim 4, characterized in that: The A-type sealing ring (3051) and the plum blossom-shaped sealing ring (3053) are both made of nitrile rubber.

6. A double rectangular spring lifting winch according to claim 3, characterized in that: A steel wire rope (401) is wound around the outer surface of the roller mechanism (3036), and a hook (402) is fixedly connected to the bottom of the steel wire rope (401).

7. A double rectangular spring lifting winch according to claim 6, characterized in that: A threading hole is formed through the front end of the upper surface of the base (1), and the steel wire rope (401) passes through the threading hole.

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