Decision inputs
- Load spectrum and impact rating
- Tension stroke and space
- Environmental protection needs
- Maintenance interval
APPLICATION SOLUTION
Coal mining preload & buffering
Coal mining hoisting and conveying equipment uses disc spring stacks for tension retention, impact buffering and overload protection; this entry page lists selection decision points and evidence sources.
ENGINEERING PROBLEM
Under heavy loads, impact and dust, tension fluctuation and overload damage drivetrain components.
BOUNDARY
This page describes a decision pattern and does not promise size or performance for another operating condition.
Solution pattern
- Disc spring stacks hold constant tension and compensate elongation
- Spring packs absorb impact energy
- Combine with limiters for overload protection
Key risks
- Dust and corrosion cause sticking
- Impact overload solidifies stacks
- Characteristics decay when overdue
Verification plan
- Load-stroke characteristic verification
- Impact and life tests
- Protection and lubrication checks
Source-backed correspondences
| Summary | Load | Travel | Source |
|---|---|---|---|
| 煤矿预紧——按preload目标预选产品族；场景摘要仅供决策参考，不构成对其他工况的产品承诺。 | 按预紧目标 | 补偿行程 | Source ↗ |
Evidence (library locators)
Every technical claim traces to a specific asset version and page; restricted sources show locator metadata only.
- 415 CN204034772U 圆锥破碎机锁紧机构 碟形弹簧组 PDF p.3 (OCR) · mechanism(internal source; excerpt not public)
- 486b AU2010243223A1 Hydraulic pressure relief valve 综采液压支架大流量安全阀碟簧组 PDF p.5 (OCR) · mechanism(internal source; excerpt not public)
Asset details → · access method in preparation
- 416 CN203728064U 刮板捞渣机的碟簧张紧机构 PDF p.1 (OCR) · mechanism(internal source; excerpt not public)
- 414 CN2550552Y 湿式安全盘式制动器 煤矿井下无轨胶轮车 PDF p.1 (OCR) · mechanism(internal source; excerpt not public)
- 486b AU2010243223A1 Hydraulic pressure relief valve 综采液压支架大流量安全阀碟簧组 PDF p.1 (OCR) · mechanism(internal source; excerpt not public)
Asset details → · access method in preparation
- 416 CN203728064U 刮板捞渣机的碟簧张紧机构 PDF p.2 (OCR) · mechanism(internal source; excerpt not public)
- 486b AU2010243223A1 Hydraulic pressure relief valve 综采液压支架大流量安全阀碟簧组 PDF p.4 (OCR) · mechanism(internal source; excerpt not public)
Asset details → · access method in preparation
- 415 CN204034772U 圆锥破碎机锁紧机构 碟形弹簧组 PDF p.4 (OCR) · numeric(internal source; excerpt not public)
- 486b AU2010243223A1 Hydraulic pressure relief valve 综采液压支架大流量安全阀碟簧组 PDF p.9 (OCR) · numeric(internal source; excerpt not public)
Asset details → · access method in preparation
Cases illustrate decisions and do not constitute a specification promise for any other operating condition.
ENGINEERING REVIEW