CN218439396U

CN218439396U - Section steel arch frame adjusting device

Info

Publication number: CN218439396U
Application number: CN202222010782.XU
Authority: CN
Inventors: 陈伟; 张伟; 李迎阳; 熊军; 方兵; 欧阳云峰; 唐磊; 李靖
Original assignee: China Railway 11th Bureau Group Co Ltd; Fifth Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
Current assignee: China Railway 11th Bureau Group Co Ltd; Fifth Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-02-03
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a shaped steel bow member adjusting device, sleeve pipe, bottom cartridge including vertical setting to the cover intraductal lead screw and with lead screw threaded connection's nut, the top of lead screw is equipped with the steel bow member fastener, the top of steel bow member fastener is equipped with the bayonet socket that is used for the card in the bottom side of steel bow member, the nut supports on the sheathed tube top, and steel bow member fastener card is behind steel bow member bottom side, drives the lead screw through rotating the nut and stretches out or the withdrawal lead screw to this altitude mixture control that realizes the steel bow member, the sheathed tube bottom is equipped with the bottom location checkpost that is used for the card on the reinforcing bar of tunnel primary installation platform truck, through universal ball pivot universal connection between sleeve pipe and the bottom location checkpost. The butt-jointed steel arch centering can be quickly aligned and folded, the construction efficiency is improved, time and labor are saved, the folding precision of the steel arch centering is improved, and errors are reduced.

Description

Section steel arch frame adjusting device

Technical Field

The utility model relates to a technical field is adjusted to the steel bow member, concretely relates to shaped steel bow member adjusting device.

Background

The steel arch erection is the most important ring in the primary support of the tunnel, and the position of the steel arch needs to be strictly controlled in order to ensure the construction quality of the tunnel in the process of erecting the steel arch. At present, the installation of the steel arch of the arch crown of the tunnel in the tunnel is mainly carried out by combining a trolley with manual work, namely, the trolley is dragged to the front of a tunnel face through large machinery, the steel arch is placed on the trolley, and then the steel arch is folded manually and welded into a whole. However, the installation method of the steel arch frame has the disadvantages of long installation time, large physical consumption of workers, difficulty in maintaining the installation precision requirement, easy stress concentration of the upper chord and the lower chord of the steel arch frame and influence on the overall stress performance of the steel arch frame. Therefore, there is a high necessity for an adjusting device capable of adjusting the position of the steel arch.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the technical problem who exists among the prior art, innovate very much and proposed a shaped steel arch centering adjusting device, can align, fold the steel arch of butt joint fast, improve the efficiency of construction, labour saving and time saving improves the precision that the steel arch folded, reduces the error.

In order to realize the utility model discloses an above-mentioned purpose, the utility model provides a shaped steel arch centering adjusting device, including the sleeve pipe of vertical setting, bottom cartridge to the intraductal lead screw of sleeve and with lead screw threaded connection's nut, the top of lead screw is equipped with the steel arch fastener, the top of steel arch fastener is equipped with the bayonet socket that is used for the card at the bottom side of steel arch, the nut supports on the sheathed tube top, and steel arch fastener card is behind the steel arch bottom side, and it stretches out or the withdrawal lead screw to drive the lead screw through rotating the nut to this altitude mixture control that realizes the steel arch, the sheathed tube bottom is equipped with the bottom location checkpost that is used for the card on the reinforcing bar of tunnel primary installation platform truck, through universal ball pivot universal connection between sleeve pipe and the bottom location checkpost.

In the scheme, the method comprises the following steps: the nut is rotatably connected to the top of the sleeve, so that the screw rod and the sleeve are connected into a whole, the connection stability is improved, and the screw rod is prevented from being separated.

In the scheme, the method comprises the following steps: the height adjusting range of the screw rod is 1-2 m.

In the scheme, the method comprises the following steps: the both sides of nut all are equipped with the rotation handle, are convenient for rotate the nut, improve work efficiency.

In the scheme, the method comprises the following steps: the bayonet of the steel arch frame clamping piece is larger than the bayonet of the bottom positioning clip.

In the scheme, the method comprises the following steps: the steel arch clamping piece is fork-shaped, simple in structure and convenient to clamp in.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the steel arch frames which are butted with each other can be aligned and folded, the construction efficiency is improved, and time and labor are saved. The jacking mechanism is simple in structure, materials are simple and easy to obtain, only one sleeve and the screw rod nut mechanism are needed to be assembled to form the jacking mechanism, and the jacking mechanism is convenient to assemble. During jacking, with steel bow member card in steel bow member bottom side, the lead screw can't rotate, consequently rotate the nut this moment and alright stretch out the lead screw, thereby with the steel bow member jack-up that makes progress, adjust the height of steel bow member, avoid staggering from top to bottom the steel bow member of two butt joints, avoid producing the error, bottom positioning clip card through sleeve pipe bottom is on the reinforcing bar of tunnel primary erection trolley, fix sleeve pipe bottom, form the supporting force through tunnel primary erection trolley, be convenient for align with the steel bow member of butt joint. The universal ball pivot that sets up can be applicable to the condition that does not have the reinforcing bar under the steel bow member, rotates universal ball pivot for bottom locator checkpost slant card is on nearest reinforcing bar, simultaneously, rotates bottom locator checkpost through universal ball pivot, makes it can block on horizontal or fore-and-aft reinforcing bar according to the selection, in order to satisfy the card on nearest reinforcing bar.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Like figure 1, a shaped steel bow member adjusting device, including the sleeve pipe 1 of vertical setting, bottom cartridge lead screw 4 and with lead screw 4 threaded connection's nut 5 in the sleeve pipe 1, the top of lead screw 4 is equipped with steel bow member fastener 3. The top of steel bow member fastener 3 is equipped with the bayonet socket that is used for the card to be in the bottom side of steel bow member, and nut 5 rotates to be connected at the top of sleeve pipe 1, and steel bow member fastener 3 card is behind the steel bow member bottom side, drives lead screw 4 through rotating nut 5 and stretches out or retract lead screw 4 to this altitude mixture control who realizes the steel bow member. And, the nut 5 is connected on the sleeve 1 rotatably, the feed screw 4 is connected with the sleeve 1 to form an organic whole, improve the connection stability, prevent the feed screw 4 from deviating from.

The bottom of sleeve pipe 1 is equipped with and is used for the bottom locator checkpost 2 of card on the reinforcing bar of tunnel primary support installation platform truck, through universal ball pivot 1a universal connection between sleeve pipe 1 and the bottom locator checkpost 2. The bottom positioning clamp 2 can be rotated through the universal ball joint 1a, so that the bottom positioning clamp can be clamped on a transverse or longitudinal extending steel bar. And when there is not the reinforcing bar under the steel bow member, can be through universal ball angle 1a with bottom positioning clip 2 card on the reinforcing bar nearby for sleeve pipe 1 and lead screw 4 slope. Because the reinforcing bar of tunnel primary erection installation platform truck need stand the people, the interval of reinforcing bar can not be too big, and inclination can not be too big, even consequently

sleeve pipe

1 and 4 diagonal braces of lead screw, can not influence 3 cards of steel bow member fastener in steel bow member bottom side yet to hold sleeve pipe 1 through the manual work, still can satisfy the jacking demand.

Preferably, both sides of the nut 5 are provided with rotating handles 6 for rotating the nut, thereby increasing the speed of extending out of the screw rod 4 and improving the working efficiency, wherein the height adjusting range of the screw rod 4 is 1 m-2 m.

Preferably, the bayonet of the steel arch clamping piece 3 is larger than the bayonet of the bottom positioning clip 2, and the steel arch clamping piece 3 is fork-shaped, has simple structure and is convenient to be clamped into the steel arch from the lower part of the steel arch.

During the use, block 3 cards in the steel bow member bottom side earlier, block the bottom positioning clip 2 on horizontal or fore-and-aft reinforcing bar nearby again, fix sheathed tube 1's bottom. The sleeve 1 is held and the nut 5 is rotated to extend out of the screw rod 4, the steel arch is jacked upwards, and the height is adjusted. The adjusting device is supported below the steel arch until welding is completed.

Claims

1. The utility model provides a shaped steel bow member adjusting device, includes sleeve pipe (1), the bottom cartridge of vertical setting to lead screw (4) in sleeve pipe (1) and with lead screw (4) threaded connection's nut (5), the top of lead screw (4) is equipped with steel bow member fastener (3), the top of steel bow member fastener (3) is equipped with the bayonet socket that is used for the card in the bottom side of steel bow member, nut (5) support the top at sleeve pipe (1), when steel bow member fastener (3) card is in steel bow member bottom side, can drive lead screw (4) through rotating nut (5) and stretch out or retract lead screw (4) to this altitude mixture control that realizes the steel bow member, its characterized in that: the bottom end of the sleeve (1) is provided with a bottom positioning clip (2) which is used for being clamped on a steel bar of a tunnel primary support mounting trolley, and the sleeve (1) is in universal connection with the bottom positioning clip (2) through a universal ball joint (1 a); the bayonet of the steel arch frame clamping piece (3) is larger than the bayonet of the bottom positioning clamp (2).

2. The adjusting device for the steel section arch according to claim 1, wherein: the nut (5) is rotatably connected to the top of the sleeve (1).

3. The adjusting device for the steel section arch according to claim 2, wherein: the height adjusting range of the screw rod (4) is 1-2 m.

4. A section steel arch centering adjusting device according to claim 2, wherein: and both sides of the nut (5) are provided with rotating handles (6).

5. A section steel arch centering adjusting device according to claim 1, wherein: the steel arch clamping piece (3) is fork-shaped.