CN-115640627-B - Spiral chute design method and rail accurate compensation spiral chute system

Abstract

The invention provides a spiral chute design method and a track precise compensation spiral chute system, wherein the method comprises the steps of firstly enabling mass points projected on a turntable by a rotating bearing to move along the chute; the method comprises the steps of obtaining a track equation of the center of a rotating bearing of a sliding groove, obtaining an optimal track equation of a contact point with a bearing boundary, translating the optimal track equation of the contact point of the rotating center track equation and the bearing boundary to obtain a design curve equation of the sliding groove, and finally designing the spiral sliding groove according to the design curve equation. The method solves the problem that when the tunnel passes through the active fault, the related measures are needed to be adopted to realize real-time adjustment of the structural deformation of the track, and the purpose of real-time accurate adjustment is to be achieved. A spiral chute design method and an adjusting system for rail accurate compensation.

Inventors

• TU HONGLIANG
• XU FUTONG
• ZHOU HUI
• ZHANG CHUANQING
• LU JINGJING
• GAO YANG
• HU MINGMING
• HU DAWEI
• YANG LIU
• XIAO JIANCHENG

Assignees

• 中国科学院武汉岩土力学研究所

Dates

Publication Date

20260505

Application Date

20220928

Claims (4)

1. 1. The design method of the spiral chute is characterized by comprising the following steps of: Displacing the particles; Acquiring a rotation center equation of the chute; acquiring an optimal track equation of a bearing boundary contact point; Translating the optimal trajectory equation of the contact point between the rotation center equation and the bearing boundary to obtain a design curve equation of the spiral chute; designing and obtaining the spiral chute according to the design curve equation; the mass point is shifted further comprises the step of applying external force to enable the sliding chute to be shifted in a preset mode; applying an external force to cause the chute to perform a predetermined displacement includes applying an external force to cause the chute to perform a predetermined translational and rotational movement; The rotation center equation is obtained as follows: (1) (2) wherein l represents an initial moment arm, x represents an x-axis coordinate value of a point on a chute, y represents a y-axis coordinate value of the point on the chute, alpha represents a transmission coefficient, R represents a radius of a large bevel gear, R' represents a radius of a small bevel gear, and s represents a stroke of a screw rod; the optimal track equation of the contact point with the bearing boundary is obtained as follows: (3) wherein, l represents an initial moment arm, x represents an x-axis coordinate value of a point on the chute, y represents a y-axis coordinate value of the point on the chute, alpha represents a transmission coefficient, r represents a radius of the rotating bearing; Translating the optimal trajectory equation of the contact point between the rotation center equation and the bearing boundary, and when the rotation center equation moves down by m, obtaining a design curve equation of the spiral chute comprises: (4) (5) Wherein l represents an initial moment arm, x represents an x-axis coordinate value of a point on the chute, y represents a y-axis coordinate value of the point on the chute, alpha represents a transmission coefficient, r represents a radius of the rotating bearing, and m represents a moving distance of the rotating bearing.
2. 2. The method of claim 1, wherein displacing the mass points comprises: the gear is caused to slide along the inner boundary of the chute and is tangential to the chute.
3. 3. The method of claim 1, further comprising, prior to the displacing the mass point: The opening direction of the chute is upward or downward.
4. 4. Spiral chute system based on accurate compensation of track under dislocation of striding active fault tunnel, its characterized in that: The chute system is applied to the spiral chute design method as claimed in any one of the preceding claims 1-3.

Description

Spiral chute design method and rail accurate compensation spiral chute system Technical Field The invention belongs to the technical field of rail transit, and particularly relates to a spiral chute design method and a rail accurate compensation spiral chute system. Background To adapt to the rapid development of the economy in China, a large amount of traffic infrastructures such as highways, railways and the like need to be built, the mountain-oriented severe mountain is inevitably traversed, and the traversing mode is usually based on tunnels. The method is characterized in that the method comprises the steps that the method is characterized in that China is positioned between an annular Pacific earthquake zone and an European earthquake zone, a fracture zone is very active, the method belongs to a country with frequent earthquakes, a tunnel passes through an active fault, fault dislocation has an important influence on the tunnel and facilities in the tunnel in terms of a high-speed railway tunnel, and due to the fact that the high-speed railway has very high standard on the deformation requirement of a track, the track structural deformation can be adjusted in real time by adopting relevant measures when the tunnel passes through the active fault, and the purpose of real-time accurate adjustment is achieved; The high-speed rail has very high standard requirements on the deformation of the rail, so that the deformation of the rail structure can be adjusted in real time by adopting related measures when the tunnel passes through the active fault, the aim of real-time accurate adjustment is fulfilled, and accurate theoretical calculation and mechanical design of the adjusting device are required. It can be seen how to provide a precise design manner of the spiral chute is a technical problem which needs to be solved by those skilled in the art. Disclosure of Invention The invention provides a mechanical self-adaptive regulation and control system based on a fault dislocation lower rail, which at least solves the technical problems; In order to solve the problems, a first aspect of the present invention provides a design method of a spiral chute, where the spiral chute includes a chute, the design method includes displacing mass points, obtaining the rotation center equation of the chute, obtaining an optimal trajectory equation of a contact point with the bearing boundary, translating the rotation center equation and the optimal trajectory equation of the contact point with the bearing boundary to obtain a design curve equation of the spiral chute, and designing the spiral chute according to the design curve equation. In the first aspect, the displacing the mass point further comprises applying an external force to cause a preset displacement of the chute. In a first aspect, applying an external force to cause a predetermined displacement of the chute includes applying an external force to cause a predetermined translational and rotational movement of the chute. In the first aspect, the rotation center equation of the chute is obtained as follows: α=2πr′/(Rs) (2) wherein l represents an initial moment arm, x represents an x-axis coordinate value of a point on a chute, y represents a y-axis coordinate value of the point on the chute, alpha represents a transmission coefficient, R represents a radius of a large bevel gear, R' represents a radius of a small bevel gear, and s represents a stroke of a screw. In a first aspect, the optimal trajectory equation for the contact point with the bearing boundary is obtained as: Wherein l represents an initial moment arm, x represents an x-axis coordinate value of a point on the chute, y represents a y-axis coordinate value of the point on the chute, alpha represents a transmission coefficient, and r represents a radius of the rotating bearing. In the first aspect, translating (taking the following shift m as an example) the trajectory equation of the center of the rotating bearing and the optimal trajectory equation of the bearing boundary contact point to obtain the design curve equation of the spiral chute includes: Wherein l represents an initial moment arm, x represents an x-axis coordinate value of a point on the chute, y represents a y-axis coordinate value of the point on the chute, alpha represents a transmission coefficient, r represents a radius of the rotating bearing, and m represents a moving distance of the rotating bearing. In a first aspect, displacing the mass point includes sliding the gear along an inner boundary of the chute, and the gear is tangential to the chute. In a first aspect, the method further comprises directing the opening of the chute upward or downward prior to displacing the mass point. In a second aspect, the present invention provides a spiral chute system based on accurate compensation of a lower track moving across a fault tunnel, where the chute system is applied to any one of the spiral chute design methods described above. Th