一种用于胀紧套的锁紧机构
The combination design of inner ring sleeve, interlocking ring groove, expansion groove, expansion block, first outer ring sleeve, expansion bolt, inner expansion ring and single-sided contact seat enhances the multi-stage self-locking vibration resistance of the expansion sleeve locking mechanism, solves the problems of bolt loosening and slippage, and improves the stability and torque bearing capacity of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI BAOLIANG MASCH CO LTD
- Filing Date
- 2025-10-22
- Publication Date
- 2026-07-17
AI Technical Summary
The existing expansion sleeve locking mechanism lacks multi-stage self-locking vibration resistance, which makes it easy for bolts to loosen, expansion force to decrease and slip under vibration. Long-term use may lead to equipment shutdown and overload breakage.
The design employs an inner ring sleeve, interlocking ring groove, expansion groove, expansion block, first outer ring sleeve, expansion bolt, inner expansion ring, and single-sided contact seat. Through the combination of threaded self-locking and contact head, the friction is enhanced to resist high-frequency vibration, achieving multi-level self-locking vibration resistance.
It effectively prevents bolts from loosening and slipping, increases shaft clamping force, can bear greater torque, and avoids equipment downtime and overload breakage.
Smart Images
Figure CN224515715U_ABST
Abstract
Claims
1. A locking mechanism for a tensioner boot, the locking mechanism comprising: include Inner ring sleeve (1) is used to tighten the main body of the shaft rod; The insert ring groove (2) is opened at both ends of the inner ring sleeve (1) for assembly with the outer ring. The insert ring groove (2) is provided with a tightening groove (3). The tightening groove (3) is inlaid with a tightening block (4). The first outer ring sleeve (5) is fixedly installed on the outside of the tightening block (4). The front end of the tightening block (4) is threaded with an expansion bolt (6). An inner expansion ring (10) is fixedly installed inside the inner ring sleeve (1) to enhance the friction between the expansion sleeve and the shaft. The inner expansion ring (10) has a self-locking thread (11) inside. A single-sided contact seat (12) is fixedly installed outside the inner ring sleeve (1). A single-sided contact head (13) is fixedly installed inside the single-sided contact seat (12). A top contact bolt (14) is threaded through the top of the single-sided contact seat (12).
2. A locking mechanism for an expansion sleeve as defined in claim 1, wherein: The expansion block (4) fixedly installed on the outside of the first outer ring sleeve (5) engages with the expansion groove (3) opened inside the interlocking ring groove (2), and the expansion block (4) and the expansion groove (3) are used together.
3. A locking mechanism for an expansion sleeve as defined in claim 1, wherein: The outer ring sleeve (5) is fixedly installed with a first pair of insert ring blocks (7), and the other end of the inner ring sleeve (1) is inlaid with a second pair of insert ring blocks (8).
4. A locking mechanism for an expansion sleeve as defined in claim 3, wherein: The second pair of insert ring blocks (8) is externally fixedly mounted with a second outer ring sleeve (9), and the first outer ring sleeve (5) and the second outer ring sleeve (9) are threadedly connected to the inner ring sleeve (1).
5. A locking mechanism for an expansion sleeve as defined in claim 1, wherein: The number of self-locking threads (11) is set to multiple, and the multiple self-locking threads (11) are distributed in a ring array inside the inner expansion ring (10).
6. A locking mechanism for an expansion sleeve as defined in claim 1, wherein: The single-sided contact head (13) is threadedly connected to the top contact bolt (14), and the single-sided contact seat (12) is symmetrically arranged with respect to the central axis of the inner ring sleeve (1).