一种用于桥梁无称重平转的智能撑脚装置
By using an intelligent support device to monitor stress status in real time, the problems of pollution during the removal of traditional sand boxes and the complexity of counterweight weighing were solved, enabling efficient, safe and stable construction during the bridge rotation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 24TH BUREAU GROUP CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-17
AI Technical Summary
In bridge rotation construction, the traditional sand box removal process easily contaminates the slide, affecting the bridge rotation performance. In addition, the traditional counterweight weighing operation is complicated, resulting in low construction efficiency and insufficient safety.
The system employs an intelligent support device, including an outer sleeve, an inner sleeve, a hydraulic mechanism, a guide locking component, and stress sensors, to monitor the stress in the support feet in real time. This enables precise construction control without the need for traditional counterweights. By collecting data through stress sensors, the system determines the stress state, ensuring the safety and stability of the bridge rotation process.
It simplified the construction process, improved construction efficiency, reduced labor intensity, avoided pollution, and achieved high-precision stress distribution monitoring and rapid problem identification, ensuring the safety and stability of the bridge rotation process.
Smart Images
Figure CN224514072U_ABST
Abstract
Claims
1. An intelligent foot device for bridge unweighing swivel, characterized in that: The device includes an outer sleeve, an inner sleeve, a hydraulic mechanism, a guide locking assembly, and a stress sensor. The outer sleeve is fitted over the inner sleeve. The bottom of the outer sleeve has a support plate for connecting to the lower abutment of the bridge. The top of the inner sleeve has a support plate for connecting to the upper abutment of the bridge. The hydraulic mechanism is located inside the inner sleeve and drives the inner sleeve to move up and down on the outer sleeve. The guide locking assembly limits the up and down movement of the inner sleeve. The stress sensor is built into the inner sleeve and collects the stress at the connection between the bottom of the hydraulic mechanism and the outer sleeve.
2. A smart foot device for bridge unweighing swivel according to claim 1, characterized in that: The guide locking assembly includes a guide sleeve and a guide rod. The guide sleeve is sleeved on the outside of the guide rod and is fixed to the outer wall of the outer sleeve. The guide rod is fixed to the outer wall of the inner sleeve. The inner wall of the guide sleeve is provided with a guide groove, which is tightly fitted with the guide rod, so that the inner sleeve moves linearly in the direction defined by the guide sleeve.
3. The intelligent support leg device for bridge unweighted horizontal rotation according to claim 2, characterized in that: A locking device is provided between the guide sleeve and the guide rod. The locking device includes a locking bolt on the guide sleeve and a bolt slot on the guide rod. The locking bolt and the bolt slot cooperate to lock the guide rod and the guide sleeve.
4. The intelligent foot device for bridge unweighing swivel according to claim 1, characterized in that: The hydraulic mechanism includes a hydraulic cylinder, a mounting base plate, a mounting top plate, and a displacement sensor. The mounting base plate is disposed at the bottom of the cylinder barrel of the hydraulic cylinder, and the hydraulic cylinder is rigidly connected to the outer sleeve through the mounting base plate. The mounting top plate is disposed at the top of the piston rod of the hydraulic cylinder, and the hydraulic cylinder is rigidly connected to the inner sleeve through the mounting top plate. The displacement sensor is mounted on the piston rod of the hydraulic cylinder to monitor the extension length of the inner sleeve.
5. A smart foot device for bridge unweighing swivel according to claim 4, characterized in that: A stabilizing component is provided at the top of the cylinder barrel of the hydraulic cylinder, and the stabilizing component is located around the piston rod of the hydraulic cylinder; the stabilizing component includes a connecting rod and a guide wheel located at the end of the connecting rod.
6. A smart foot device for bridge unweighing swivel according to claim 4, characterized in that: The outer sleeve is equipped with a quick-connect coupling, and the hydraulic cylinder is connected to the hydraulic circuit of the external pump station through the quick-connect coupling.
7. The intelligent foot device for bridge unweighing swivel according to claim 1, characterized in that: A buffer spring is fitted around the outer periphery of the inner sleeve.
8. The intelligent foot device for bridge unweighing swivel according to claim 1, characterized in that: The support foot base plate is detachably bolted to the lower bridge abutment; the support foot support plate is detachably bolted to the upper bridge abutment.