Snow Groomer Tiller Assembly With Sealed Direct-Drive Transmission
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Solution Overview
Problem
Existing tiller assemblies for snow groomers are constructively complex, expensive, difficult to assemble, require frequent maintenance, structurally rigid, and unreliable due to exposure to soil debris, and lack compactness and high tilling power.
Innovation Solution
A tiller assembly with a support structure made of metallic material, a gear reducer housed in a sealed casing, and direct motor connection to the tiller, eliminating belt transmissions and universal joints, ensuring structural rigidity, compactness, and simplified maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional mechanical members with interfacing elements and belt transmissions are used, then the tiller assembly can be constructed, but the device complexity increases and manufacturing cost increases
Solution Approach 1:
The motor is directly coupled to the tiller, merging the power source and working component into a single integrated unit. This eliminates the need for separate transmission elements such as belts, gears, and universal joints, thereby reducing device complexity while maintaining constructibility.
2Ease of manufacture
If traditional mechanical members with multiple interfacing elements are used, then the tiller assembly can be constructed, but the manufacturing cost increases
Solution Approach 1:
By integrating the motor directly to the tiller, the number of separate components requiring manufacturing, assembly, and interfacing is reduced. This consolidation lowers the quantity of materials and parts needed, thereby reducing overall manufacturing cost.
3Ease of manufacture
If traditional mechanical members with interfacing elements are used, then the tiller assembly can be constructed, but the assembly time increases
Solution Approach 1:
The direct coupling of the motor to the tiller eliminates multiple assembly steps required for traditional transmission systems. Fewer components mean fewer interfaces to assemble, significantly reducing assembly time while maintaining ease of manufacture.
4Ease of manufacture
If traditional mechanical members are used, then the tiller assembly can be constructed, but maintenance frequency increases
Solution Approach 1:
The direct-drive configuration eliminates belt transmissions and universal joints that require regular maintenance. By merging the motor and tiller into a single unit with fewer moving parts, the maintenance interval is extended while the assembly remains easy to manufacture.
5Ease of manufacture
If traditional mechanical members are used, then the tiller assembly can be constructed, but the structural rigidity decreases
Solution Approach 1:
The direct coupling of the motor to the tiller creates a rigid, integrated structure without flexible belts or universal joints. This merging of components enhances structural rigidity and strength while maintaining ease of manufacture through simplified construction.
6Ease of manufacture
If traditional mechanical members are used, then the tiller assembly can be constructed, but the reliability decreases due to exposure to soil debris
Solution Approach 1:
The direct-drive design merges the motor and tiller into a protected integrated unit, eliminating exposed belt transmissions and universal joints that are vulnerable to soil debris. This improves reliability while maintaining ease of manufacture through reduced component count.
7Ease of manufacture
If traditional mechanical members are used, then the tiller assembly can be constructed, but the compactness decreases
Solution Approach 1:
By merging the motor directly to the tiller, the overall volume of the assembly is reduced. The elimination of intermediate transmission components and their associated spacing requirements enables a more compact configuration while maintaining ease of manufacture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a compact, reliable, and efficient tiller assembly with reduced maintenance needs, capable of transmitting high power effectively while protecting mechanical components from soil debris, enhancing operational longevity and ease of assembly.
Implementation Method 1
a gear reducer (41) housed in a sealed casing (42), and mechanically connected to the motor (50) and to the tiller (30)
Implementation Method 2
a gear reducer (41) housed in a sealed casing (42)
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
A tiller assembly (10) for treating a surface of a soil, preferably a snowy soil, comprising a support structure (20) and a tiller (30) rotatably mounted on said support structure (20), extending along a tilling axis (M-M), and configured to rotate about said tilling axis (M-M) so as to treat said soil. Said tiller (30) comprises a first tilling portion (30a) extending along a first tilling axis (M1-M1), and a second tilling portion (30b) extending along a second tilling axis (M2-M2). There is a transmission means (40) interposed between the two portions, which comprises: an angular gear reducer (41), first connection means (60a) and second connection means (60b) configured to mechanically connect respectively said first and second portion (30a, 30b) to said gear reducer (41) and to allow a simultaneous inclination of said first and second tilling portion (30a, 30b) with respect to said tilling axis (M-M).