HMB Series Elevators: Bevel Gear Orthogonal Drive & Bidirectional Load-Bearing Solution

I. Product Overview

Weigao HMB Series Elevators (including HMB screw lifting type and nut lifting type) are high-stability integrated transmission devices combining precision bevel gear (umbrella gear) drive and ball screw technology, tailored for industrial scenarios requiring orthogonal layout, bidirectional load bearing, and stable operation in complex spatial environments. As a versatile spatial transmission product in Weigao's lineup, this series addresses the pain points of limited spatial layout, poor bidirectional force resistance, and unstable operation of traditional worm gear elevators in lateral load scenarios, tower equipment, and multi-angle lifting tasks. Compliant with ISO 3408 international ball screw standards and certified by ISO 9001 quality management system and IP66 protection level, it integrates spiral bevel gear structure, bidirectional load-optimized ball screw pair, and integral cast aluminum alloy housing. The product features orthogonal space-saving layout, strong bidirectional force bearing, smooth transmission, and wide spatial adaptability, capable of stably operating in temperature ranges from -20℃ to +95℃. It is widely applied in tower maintenance platforms, lateral load lifting workbenches, architectural formwork adjustment, and outdoor lifting equipment, providing reliable spatial transmission support for global industrial fields.

II. Core Advantages

1. Bevel Gear Orthogonal Drive, Space-Saving Layout

Adopting spiral bevel gear (umbrella gear) orthogonal transmission design, the HMB series realizes 90° power direction conversion, saving over 40% lateral installation space compared with parallel-shaft worm gear elevators, ideal for narrow and complex spatial layouts. The screw lifting type drives the screw to move axially via bevel gear transmission, suitable for small-stroke vertical lifting with lateral force; the nut lifting type fixes the screw and drives the nut to move, adapting to large-stroke lifting with stable lateral load bearing. The spiral bevel gear pair is made of 20CrMnTi alloy steel (carburized and quenched to HRC 58-62), with precision ground tooth surface and optimized meshing angle, ensuring contact area over 90% and effectively reducing slippage and heat generation. Equipped with C6-level precision ball screw pair, it achieves transmission efficiency up to 88%-91%, with repeat positioning accuracy controlled within ±0.05mm, fully meeting the precision requirements of spatial orthogonal transmission scenarios.

2. Bidirectional Load Optimization, Strong Stability

The HMB series is optimized for bidirectional load-bearing scenarios, effectively solving the problem of poor lateral force resistance of traditional elevators. The ball screw adopts 42CrMo alloy steel with nitriding treatment, surface hardness up to HRC 60-63, supporting rated loads from 3kN to 120kN and lateral loads up to 15% of rated load. The bevel gear box adopts integral cast aluminum alloy housing with reinforced rib structure, optimized by finite element simulation to evenly disperse axial and lateral forces, ensuring no deformation under 1.2 times composite load. Equipped with double-row self-aligning roller bearings, it enhances radial load capacity by 30% compared with ordinary bearings, avoiding jitter caused by lateral force. It supports multi-unit linkage control with synchronization error ≤0.08mm, enabling stable lifting of large-area platforms with uneven load distribution, fully adapting to complex load scenarios.

3. All-Environment Protection, Wide Adaptability

Integrating all-environment protective design, the HMB series ensures stable operation in indoor and outdoor complex conditions. Adopting IP66 high-level protection, the multi-stage sealing system combines fluorine rubber double-lip oil seals, stainless steel telescopic dust covers, and waterproof wire joints, effectively preventing dust, heavy rain, and corrosive media intrusion, suitable for outdoor and humid environments. The housing surface undergoes electrophoretic anti-corrosion treatment, with corrosion resistance grade reaching C4 level, adapting to coastal and industrial corrosive environments. Aiming at outdoor temperature fluctuations, it is equipped with thermal insulation and heat dissipation composite structure, maintaining stable performance at -20℃ to +95℃. The operating noise is controlled within ≤53dB at 1m distance, meeting the requirements of indoor precision equipment and outdoor noise-sensitive scenarios.

4. Modular Lubrication, Easy Maintenance

The optimized lubrication system adopts multi-purpose synthetic lithium-based grease, featuring excellent high and low temperature adaptability and anti-wear performance, forming a stable oil film for core components under complex load conditions. The bevel gear and ball screw pair share a centralized lubrication circuit, with a visual oil level window and one-key oil injection port for convenient daily inspection and maintenance. The recommended maintenance cycle is extended to 15000 hours, significantly reducing downtime. The modular design of core components allows quick disassembly and replacement of bevel gear pairs, screws, and nuts, with standardized accessories reducing maintenance costs. The dedicated grease effectively reduces meshing wear of bevel gears, extending the overall service life to over 30000 hours under normal working conditions.

III. Typical Application Fields

• Tower Equipment: Wind turbine maintenance platforms, communication tower lifting mechanisms, orthogonal layout adapting to narrow tower space
• Architectural Engineering: Building template adjustment devices, curtain wall installation lifting platforms, bidirectional load bearing withstanding lateral force
• Outdoor Lifting: Warehouse outdoor stacking platforms, port auxiliary lifting equipment, IP66 protection adapting to harsh weather
• Precision Equipment: Lateral load worktables, mechanical arm auxiliary lifting mechanisms, stable operation ensuring positioning accuracy
• Industrial Production: Heavy-duty material lateral lifting lines, production line edge lifting devices, wide adaptability meeting multi-scenario needs

IV. Key Technical Parameters

V. Installation & Maintenance

Select models and lifting modes based on load type, spatial layout, and working environment. During installation, ensure orthogonal coaxiality error ≤0.04mm and fix the housing with anti-vibration gaskets. Adopt dedicated multi-purpose synthetic lithium-based grease, and replenish or replace it every 15000 hours. Regularly inspect sealing performance, bevel gear meshing status, and ball screw wear. For outdoor use, clean the dust cover and anti-corrosion layer periodically. For multi-unit linkage systems, calibrate synchronization accuracy regularly, and perform maintenance by professional technicians when abnormal noise or jitter occurs.

Weigao HMB Series Elevators adhere to the design philosophy of "orthogonal precision, bidirectional stability, and all-environment adaptation", focusing on the core needs of spatial transmission and complex load scenarios. With advantages of bevel gear orthogonal layout, strong bidirectional load bearing, and high-level protection, it breaks through the limitations of traditional elevators in spatial adaptability and load resistance. The product provides high-quality lifting solutions for tower equipment, architectural engineering, and outdoor applications, supported by strict quality control and professional after-sales services. Compliant with international precision transmission standards, it is committed to becoming a trusted partner in the global spatial industrial lifting field.

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