Depth Indicator
- Accuracy : Indication error ≤ 0.5%, supports digital display and analog pointer dual mode.
- Protection level : IP65, suitable for high humidity and dusty environment underground.
- Redundant design : Equipped with a mechanical backup system to prevent loss of control due to electronic failure.
-
Communication interface :
Support RS485/Modbus protocol and monitoring system linkage
- INTRODUCTION
- SPECIFICATION
- RELATED
- INQUIRY
Frame-Type Depth Indicator Technical Specifications
1. Overview
The frame-type depth indicator is a mechanical position display system for mine hoists, providing real-time container position tracking and integrated safety functions (overspeed protection, overwind braking). Widely used in both single-rope and multi-rope hoisting systems.
2. Structural Components
Drive Mechanism
90° gear connection to hoist main shaft
Bevel gear set converts rotation to vertical motion
Main Indicator Unit
Lead Screws: Dual vertical screws (right-hand thread)
Scale Column: Graduated 0-1000m with IP55 protection
Safety Features: Deceleration triggers, overwind switches
3. Working Principle
| Function | Mechanism |
|---|---|
| Position Display | Screw rotation moves pointer along vertical scale |
| Speed Control | 270-330° cam activates electrical speed limiter |
4. Technical Features
Direct visual correlation with shaft depth
Mechanical failsafe design for harsh environments
Adjustable deceleration zones (2m/s threshold)
5. Installation & Maintenance
Alignment: 0.1mm gear mesh tolerance
Lubrication: Annual oil change cycle
Inspection: Monthly wear checks on bevel gears
6. Comparison with Dial-Type Indicators
| Feature | Frame-Type | Dial-Type |
|---|---|---|
| Readability | Direct depth correlation | Requires calculation |
| Maintenance | Higher (mechanical adjustment) | Lower (electronic) |
7. Technical Parameters
Screw Pitch: 6-8mm
Scale Range: 0-1500m
Response Time: ≤0.5s
8. Summary
This robust mechanical indicator remains preferred for multi-level mines due to its intuitive operation and integrated safety triggers. Critical maintenance focus includes annual lubrication (ISO VG 220 oil) and gear alignment verification.
| Parameter | Specification | Unit | Remarks |
|---|---|---|---|
| Measuring Range | 0-2000 | m | Customizable depth |
| Accuracy | ±0.1% FS | - | Full Scale |
| Resolution | 1 | mm | Digital display |
| Operating Temperature | -20℃ to +60℃ | - | Industrial grade |
| Protection Rating | IP67 | - | Dust/water proof |
| Power Supply | 24VDC ±10% | - | Redundant input |
Technical Specifications:
Material: Aluminum alloy (EN AW-6082) with anti-corrosion coating
Communication: RS485/Modbus RTU protocol (Profinet optional)
Vibration Resistance: 5g @ 10-2000Hz (IEC 60068-2-6)
Certifications: ATEX Zone 2, ISO 13849-1 PLc
* FS = Full Scale Measurement Range
** Optional analog output: 4-20mA or 0-10VDC
† Maintenance interval: 10,000 operating hours
