An auger drive mechanism

Abstract

A auger transmission mechanism, belonging to the field of snowplow technology, is disclosed. The transmission housing consists of two identical semi-enclosed housings that are fastened together, forming upper and lower mounting cavities. The symmetrical split design greatly simplifies the assembly process of complex internal components such as the input worm, worm wheel, and output shaft. During maintenance, the housing can be opened simply by loosening the connecting bolts, directly exposing the entire transmission core, achieving the goal of quick maintenance without disassembling the entire machine. The bearing slots in the upper mounting cavity and the bearing mounting holes in the lower mounting cavity together form a precision bearing positioning system. After the two semi-enclosed housings are fastened together, the bearing slots inside can automatically clamp and fix the first bearing, ensuring the concentricity of the input worm. The traditional bearing end caps and complex fasteners are eliminated, and the bearing is accurately positioned and clamped through the housing structure itself, which simplifies the number of parts, improves assembly accuracy and overall rigidity, and effectively suppresses vibration and noise.

Description

Technical Field

[0001] This utility model belongs to the field of snow sweeper technology, specifically relating to an auger transmission mechanism. Background Technology

[0002] During winter snowfall, snow accumulation often causes road congestion on highways, urban roads, rural roads, and around houses, causing considerable inconvenience to drivers and pedestrians. To ensure unobstructed traffic and minimize or avoid traffic accidents, timely snow removal is essential.

[0003] Existing snow removal mechanisms typically use traditional methods such as gears, belts, or multi-stage sprockets for power distribution and steering, resulting in bulky structures and significant energy losses. Their transmission paths may not be perpendicular or orthogonal, making it difficult to achieve efficient 90° power conversion in a compact space. This makes the layout of the entire transmission system inflexible and space-consuming. Furthermore, traditional structures use a monolithic design to reduce space, making disassembly during maintenance quite troublesome. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a auger transmission mechanism.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a auger transmission mechanism, comprising two identical semi-enclosed shells, which are interlocked to form a transmission shell. An input worm and an output shaft are provided within the transmission shell, and a worm wheel is fixedly connected to the middle position of the output shaft. Each semi-enclosed shell includes a lower mounting cavity and an upper mounting cavity. The upper mounting cavity is longitudinally semi-cylindrical and has an input shaft hole. The lower mounting cavity is conical and hollow. Two bearing slots are provided within the upper mounting cavity, and a first bearing is installed within each bearing slot. Bearing mounting holes are provided in the lower mounting cavity. An output shaft hole is provided on the inner wall corresponding to the bearing mounting hole, and a second bearing is provided in the bearing mounting hole; the input worm is located in two interlocking upper mounting cavities, and its two ends are supported on two first bearings, one end of which extends out of the semi-enclosed housing from the input shaft hole, and the two first bearings are locked together by bearing slots in the two semi-enclosed housings; the output shaft is located in two interlocking lower mounting cavities, and its two ends are supported by second bearings, and its left and right ends extend out of the semi-enclosed housing through the output shaft hole; the input worm and the worm wheel mesh with each other in the transmission housing formed by the interlocking of the two semi-enclosed housings.

[0006] Preferably, the diameters of the ends of the input worm and the output shaft extending out of the semi-enclosed housing are both smaller than the diameter of the shaft body.

[0007] Preferably, the end of the input worm gear located outside the semi-enclosed housing is connected to a universal coupling.

[0008] Preferably, screw clamping planes are provided at both ends of the output shaft.

[0009] Preferably, a limiting groove is provided on the screw tightening plane.

[0010] Preferably, the shell walls of the two semi-enclosed shells have corresponding connecting screw holes.

[0011] The beneficial effects of this utility model are as follows: The transmission housing is formed by two identical semi-enclosed housings fastened together, which respectively constitute the upper and lower mounting cavities. The symmetrical split design greatly simplifies the assembly process of complex internal components such as the input worm, worm wheel and output shaft. During maintenance, the housing can be opened by simply loosening the connecting bolts, directly exposing the entire transmission core, thus achieving the goal of quick maintenance without disassembling the whole machine.

[0012] The bearing slot in the upper mounting cavity and the bearing mounting hole in the lower mounting cavity together form a precision bearing positioning system. After the two semi-enclosed housings are fastened together, the bearing slot inside can automatically clamp and fix the first bearing, ensuring the concentricity of the input worm gear. This eliminates the need for traditional bearing end caps and complex fasteners, and achieves precise positioning and clamping of the bearing through the housing structure itself. This simplifies the number of parts, improves assembly accuracy and overall rigidity, and effectively suppresses vibration and noise. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of a semi-enclosed shell structure of this utility model.

[0015] In the diagram: 1. Semi-enclosed housing; 2. Input worm gear; 3. Output shaft; 4. Worm wheel; 5. Lower mounting cavity; 6. Upper mounting cavity; 7. Input shaft hole; 8. Bearing slot; 9. First bearing; 10. Bearing mounting hole; 11. Output shaft hole; 12. Second bearing; 13. Universal coupling; 14. Screw tightening plane; 15. Limiting groove; 16. Connecting screw hole. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] Example: A auger transmission mechanism, such as Figures 1-2As shown, a auger transmission mechanism includes two identical semi-enclosed housings that interlock to form a transmission housing. An input worm and an output shaft are housed within the transmission housing, with a worm wheel fixedly connected to the middle of the output shaft. Each semi-enclosed housing includes a lower mounting cavity and an upper mounting cavity. The upper mounting cavity is longitudinally semi-cylindrical and has an input shaft hole. The lower mounting cavity is conical and hollow. The upper mounting cavity has two bearing slots, and a first bearing is installed within each bearing slot. The lower mounting cavity has bearing mounting holes, and the inner wall corresponding to the bearing mounting holes has… An output shaft hole is provided, and a second bearing is provided in the bearing mounting hole; the input worm is located in two interlocking upper mounting cavities, with its two ends supported on two first bearings, one end of which extends out of the semi-enclosed housing from the input shaft hole, and the two first bearings are locked together by bearing slots in the two semi-enclosed housings; the output shaft is located in two interlocking lower mounting cavities, with its two ends supported by second bearings, and its left and right ends extending out of the semi-enclosed housing through the output shaft hole; the input worm and the worm wheel mesh with each other in the transmission housing formed by the interlocking of the two semi-enclosed housings.

[0018] The diameters of the ends of the input worm and the output shaft extending out of the semi-enclosed housing are both smaller than the diameter of the shaft body; a universal coupling is connected to the end of the input worm located outside the semi-enclosed housing; screw tightening planes are respectively opened at both ends of the output shaft; a limiting groove is opened on the screw tightening plane; and corresponding connecting screw holes are opened on the shell walls of the two semi-enclosed housings.

[0019] The principle of this invention is as follows: An external drive source (such as a motor) is connected to one end of the input worm gear extending from the housing through a universal coupling to transmit power. The universal coupling can effectively compensate for installation alignment errors and ensure stable power input.

[0020] The input worm rotates at high speed inside the housing, driving the worm wheel that meshes with it to rotate. The axes of the worm and the worm wheel are perpendicularly intersecting in space, thus converting the longitudinal rotational motion of the power about its own axis into the lateral rotational motion about the output shaft axis, achieving 90-degree power steering and deceleration torque increase.

[0021] The worm gear transmits power to the output shaft that is fixedly connected to it. The output shaft is supported by the second bearings at both ends, and the increased torque is smoothly output from the output shaft holes on both sides of the housing.

[0022] The output shaft has screw clamping planes and limiting grooves machined at both ends. The end of the auger shaft can be fitted onto the end with a reduced diameter of the output shaft and pressed against the screw clamping plane by the clamping screw to achieve circumferential torque transmission. At the same time, the limiting groove cooperates with the screw to play the role of axial positioning and prevent the auger shaft from coming out.

[0023] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A auger transmission mechanism, comprising two identical semi-enclosed housings, characterized in that: Two semi-enclosed housings interlock to form a transmission housing. An input worm gear and an output shaft are housed within the transmission housing, with a worm wheel fixedly connected to the middle of the output shaft. Each semi-enclosed housing includes a lower mounting cavity and an upper mounting cavity. The upper mounting cavity is longitudinally semi-cylindrical and has an input shaft hole. The lower mounting cavity is conical and hollow. The upper mounting cavity has two bearing slots, each housing a first bearing. The lower mounting cavity has a bearing mounting hole, and an output shaft hole is formed on the inner wall corresponding to the bearing mounting hole. A second bearing is housed in the bearing mounting hole. The input worm gear is located in the two interlocking upper mounting cavities, with both ends supported by the two first bearings. One end extends from the input shaft hole out of the semi-enclosed housing. The two first bearings are secured by the bearing slots in the two semi-enclosed housings. The output shaft is located in the two interlocking lower mounting cavities, with both ends supported by second bearings. Both ends extend to the outside of the semi-enclosed housing through the output shaft hole. The input worm gear and the worm wheel mesh within the transmission housing formed by the interlocking semi-enclosed housings.

2. The auger transmission mechanism according to claim 1, characterized in that: The diameters of the ends of the input worm and the output shaft extending out of the semi-enclosed housing are both smaller than the diameter of the shaft body.

3. The auger transmission mechanism according to claim 1, characterized in that: The input worm gear is connected to a universal coupling at its end located outside the semi-enclosed housing.

4. The auger transmission mechanism according to claim 1, characterized in that: The output shaft has screw clamping surfaces at both ends.

5. The auger transmission mechanism according to claim 4, characterized in that: A limiting groove is provided on the screw tightening plane.

6. The auger transmission mechanism according to claim 1, characterized in that: The shell walls of the two semi-enclosed shells have corresponding connecting screw holes.

Images