CN-117227362-B - Novel wheel pair structure is adjusted to counter weight based on section of jurisdiction arc face

Abstract

The invention discloses a novel balance weight adjusting wheel pair structure based on a segment arc surface, and relates to the technical field of novel balance weight adjusting wheel pair structures of segment arc surfaces, comprising an upper wheel frame, wherein the upper wheel frame is in a T shape, a central supporting shaft is fixedly arranged at the lower part of the upper wheel frame, walking brackets are respectively rotatably arranged at the left side and the right side of the central supporting shaft, rollers are arranged at one end of the walking brackets, which is far away from the central supporting shaft, through bearings, an elastic supporting structure is arranged between the upper part of the upper wheel frame and the upper part of the upper wheel frame, and a lower module is fixedly arranged on the upper surface of the upper wheel frame; the device has the beneficial effects that the device structure can realize the smooth movement of the inner wall of the shield segment and the effect of obstacle regulation and guiding, meanwhile, the obstacle passing rate of the segment under the floating situation can be improved by adopting the independent elastic support of the two traveling brackets, the stable steering movement can be effectively realized, the smooth movement of the whole structure device is realized, and the site construction efficiency is improved.

Inventors

• QIN YINPING
• WANG KAI
• CHEN RUIXIANG
• LI MENGYU
• WAN XUEYU
• GAO SHICHEN
• BAO PENG
• ZENG CHUIGANG
• LI FENGYUAN
• LI ZHANGUO
• WANG PENG
• YANG LUWEI
• LIU LI
• FANG DONGYANG
• SHEN QISHENG

Assignees

• 盾构及掘进技术国家重点实验室
• 中铁隧道局集团有限公司

Dates

Publication Date

20260512

Application Date

20231012

Claims (4)

1. 1. The novel balance weight adjusting wheel set structure based on the arc surface of the duct piece comprises an upper wheel frame (1) and is characterized in that the upper wheel frame (1) is in a T shape, a central supporting shaft (4) is fixedly arranged at the lower part of the upper wheel frame (1), walking brackets (2) are respectively arranged at the left side and the right side of the central supporting shaft (4) in a rotating mode, one ends of the walking brackets (2) far away from the central supporting shaft (4) are provided with idler wheels (3) through bearings, an elastic supporting structure (5) is arranged between the upper parts of the walking brackets (2) and the upper part of the upper wheel frame (1), a lower module (7) is fixedly arranged on the upper surface of the upper wheel frame (1), the lower module (7) is formed by two discs with small upper parts and large lower parts, the upper surface of the discs with the upper parts being provided with convex spherical surfaces, an upper module (6) is arranged above the lower module (7), the lower surface of the upper module (6) is provided with a concave spherical surface corresponding to the upper surface of the lower module (7), the lower module (7) and the middle module (6) is provided with a locating ring (8) corresponding to the upper locating ring and the lower locating ring (8) is provided with a locating ring (11), the upper surface of the upper module (6) and the upper end of the positioning column (11) are fixedly arranged on the running gear.
2. 2. The novel balance weight adjusting wheel set structure based on the segment arc surface, which is disclosed in claim 1, is characterized in that the elastic supporting structure (5) comprises a telescopic column fixedly arranged on the upper surface of the traveling support (2) and a telescopic sleeve fixedly arranged on the upper wheel frame (1), the telescopic column is inserted into the telescopic sleeve, a telescopic spring is sleeved at the lower position of the telescopic column corresponding to the telescopic sleeve, the lower end of the telescopic spring is fixedly connected with the traveling support (2), and the upper end of the telescopic spring is fixedly connected with the telescopic sleeve.
3. 3. The novel wheel set structure for adjusting the counterweight based on the arc surface of the pipe piece is characterized in that four limiting blocks (9) are uniformly arranged on the edge of a circular disc below the lower module (7) at intervals, and the limiting blocks (9) are propped against the side surface of the circular disc above the lower module (7) and the side surface of the upper module (6).
4. 4. The novel balance weight adjusting wheel set structure based on the arc surface of the duct piece, which is disclosed in claim 1, is characterized in that the contour line of the lower edge of the roller (3) is arc-shaped and is mutually attached to the arc surface of the duct piece.

Description

Novel wheel pair structure is adjusted to counter weight based on section of jurisdiction arc face Technical Field The invention relates to the technical field of novel wheel pair structures for adjusting counterweights of arc surfaces of segments, in particular to a novel wheel pair structure for adjusting counterweights based on arc surfaces of segments. Background Along with the great development of the foundation industry in China, the shield is widely applied to engineering fields such as highways, water conservancy, subways, railways and the like, and the total length of tunnels such as subways, highways, railways and the like in China is predicted to exceed 10000 km in 2022 years, wherein the medium-length tunnels and extra-length tunnels occupy about 2/3. The difficulty of attitude control of the shield machine in downhill driving is also more and more prominent when the shield machine is applied to tunnel engineering. When the shield machine is driven down a slope, the posture of the shield machine has larger gradient, the load condition acted on the shield machine is different from the horizontal state, the posture problem is easy to occur, and the shield machine main machine is in a 'head heavy and foot light' state, so that the shield machine main machine is exposed to higher head planting ('head knocking') risk, and particularly, the head cutting problem is easier to occur under the conditions of loose geology, uneven softness and hardness, unstable stratum crushing and the like. Therefore, the design of the novel walking adjusting equipment is extremely important, so that the novel walking adjusting equipment has important significance for researching the attitude problem and the adjusting technology of the shield machine. The invention designs a novel balance weight adjusting wheel set structure based on a segment arc surface, aiming at the situation that shield head raising amount of a shield cannot be counteracted with head planting amount during a stop period or is smaller than the head planting amount in the tunneling process of soft rock or uneven stratum, wherein the device can realize the effects of smooth movement and obstacle adjustment and guiding on the inner wall of a shield segment, has a certain effect on the adjustment of segment floating, and achieves the aim of assisting in adjusting the shield head planting. Disclosure of Invention The invention aims to solve the problems and provides a novel balance weight adjusting wheel set structure based on a segment arc surface. The invention realizes the above purpose through the following technical scheme: The novel wheel set structure for adjusting the counterweight based on the arc surface of the duct piece comprises an upper wheel frame, wherein the upper wheel frame is in a T shape, a central supporting shaft is fixedly arranged at the lower part of the upper wheel frame, locating holes penetrating up and down are correspondingly formed in the middle positions of the lower module and the upper module, locating columns are inserted into the locating holes, limiting rings are arranged at the lower ends of the locating columns, elastic supporting structures are arranged between the upper part of the upper wheel frame and the upper part of the upper wheel frame, a lower module is fixedly arranged on the upper surface of the upper wheel frame and consists of two discs with small upper part and big lower part, the upper surface of the disc above is a convex sphere, an upper module is arranged above the lower module, the lower surface of the upper module corresponds to the upper surface of the lower module, locating holes penetrating up and down are correspondingly formed in the middle positions of the lower module, the locating columns are internally provided with locating columns, the limiting rings are clamped below the lower module, and the upper surface of the upper module and the upper end of the locating columns are fixedly arranged on the walking device. Preferably, the elastic supporting structure comprises a telescopic column fixedly arranged on the upper surface of the walking support and a telescopic sleeve fixedly arranged on the upper wheel frame, the telescopic column is inserted into the telescopic sleeve, a telescopic spring is sleeved at the lower position of the telescopic column corresponding to the telescopic sleeve, the lower end of the telescopic spring is fixedly connected with the walking support, and the upper end of the telescopic spring is fixedly connected with the telescopic sleeve. Preferably, four limiting blocks are uniformly arranged at intervals on the edge of the lower circular disc of the lower module, and the limiting blocks are propped against the side face of the upper circular disc of the lower module and the side face of the upper module. Preferably, the contour line of the lower edge of the roller is arc-shaped and is mutually attached to the arc surface of the same segment. Compared with the p