On-site broaching device
By designing a field broding device including broaching tool, tie rod, hydraulic stretcher and support ring, the safety, speed and quality problems in the processing of bolt holes of rotor coupling of steam turbine generator set are solved, and the rapid and Safe and high precision processing effect.
CN222344353UActive Publication Date: 2025-01-14SHANGHAI BENAN IND DEV CO LTD
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Patent Information
- Application Number
- CN202323632444.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-12-28
AI Technical Summary
Technical Problem
The prior art on-site finishing method of rotor coupling bolt holes during installation of steam turbine generator sets is difficult to meet the requirements of safety, speed and quality.
Method used
A field broding device is designed, including a broach, tie rod, adjusting nut, hydraulic stretcher, support ring and hydraulic pump. The hydraulic pump drives the piston and cylinder to realize the linkage of cutting teeth of the front and rear guide part of the broach to reduce the Manual operation to improve speed and safety.
Benefits of technology
It realizes fast, safe and high-precision bolt hole processing without relying on manual operation points, reducing the operator's dependence on accuracy and improving the stability of processing.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN222344353U_ABST
Abstract
The utility model provides an on-site broaching device. The on-site broaching device comprises a broach, a pull rod, an adjusting nut, a check block nut, a hydraulic stretcher, a supporting ring and a hydraulic pump. The broach comprises a front guide part, cutting teeth, calibration teeth, a rear guide part, an inner hole and a chip pocket; the hydraulic stretcher comprises a first hydraulic joint, a second hydraulic joint, a piston and a cylinder body; a first through hole is formed in the piston, a stepped hole is formed in the rear end of the cylinder body, and the supporting ring comprises a ring body, an observation window and a second through hole; the diameters of the first through hole and the second through hole are greater than the outer diameter of the broach; and the hydraulic pump is provided with an oil outlet and an oil return port. The coupling centering device is reasonable in structure and scientific in working mode, centering of coupling holes of two sections of a coupling is achieved through the front guiding part and the rear guiding part of the broach, manual centering is not needed, and therefore the speed is higher; no rotary part is arranged, so that the operation is safer; the precision is realized by a cutter, the dependence on the skills of operators is small, and the precision is more stable.
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