Vibration device special for tunnel concrete lining table and driven by magnetic coupling type rodless air cylinder

Abstract

The utility model discloses a special vibration device for a tunnel concrete lining table driven by a magnetic coupling rodless cylinder, and belongs to the field of engineering machinery. According to the technical scheme, a magnetic coupling type rodless air cylinder and a pneumatic vibrator are installed in a lifting frame shell of the device in a threaded mode, and a pneumatic throttling valve for limiting the lifting speed and the descending speed is installed on the magnetic coupling type rodless air cylinder; the upper end of the pneumatic vibrator penetrates through a rotating disc installed in a trolley formwork, an oil seal seat is fixed to the lower portion of the rotating disc through threads, and an oil seal for preventing concrete from leaking is installed in the oil seal seat. The trolley template is welded with the fixing plate, the fixing plate is fixed with the stop blocks through bolts, and the four stop blocks are welded into a whole by the stop block I and the stop block II; a reinforcing plate I is fixed to the upper end of the lifting frame shell, a reinforcing plate II is fixed to the lower end of the lifting frame shell, the reinforcing plate I and a rotating disc are welded into a whole, and a blocking piece is welded below the rotating disc. The device has the beneficial effects that the tunnel concrete secondary lining construction is mechanized and intelligent, the design is novel, the structure is reasonable, and the device is safe and reliable.

Description

Technical Field

[0001] The invention discloses a special vibration device for a tunnel concrete lining platform driven by a magnetic coupling type rodless cylinder and belongs to the field of engineering machinery. Background Art

[0002] With the sustained and rapid development of my country's national economy, railways, highways, water conservancy projects, etc. all require the construction of a large number of tunnels. Concrete secondary lining operations must be carried out during tunnel construction. Concrete lining trolleys are indispensable equipment in the secondary lining process of tunnel construction. Concrete lining trolleys currently mainly include simple lining trolleys, fully hydraulic automatic walking lining trolleys, and grid lining trolleys. Regardless of the type of concrete lining trolley, a concrete vibration device must be used to vibrate and compact the concrete after the secondary lining to ensure the density of the concrete structure and the quality of the secondary lining. The concrete vibration devices currently used in various concrete lining trolleys include flat plate vibrators, planetary insertion vibrators, and high-frequency pneumatic external vibrators. Flat-plate vibrators are suitable for shallow vibration compaction of concrete. For thick concrete structures such as tunnel concrete secondary lining operations that are often measured in meters, flat-plate vibrators cannot make the underlying concrete dense; planetary insertion vibrators have the disadvantage of having to be knocked when started, and require manual hand-held operation. Currently, they are only used on a small number of simple lining trolleys; high-frequency pneumatic external vibrators need to be equipped with air compressors, and also have the same disadvantages as flat-plate vibrators. To this end, our company has developed "an insertion vibrator driven by an air motor" and has obtained a national patent with patent number 202122180982.5, but it still needs to be equipped with an air compressor, which has the disadvantages of occupying a large space and a large volume. Therefore, there is an urgent need to innovate and develop a special vibration device suitable for use in tunnel concrete lining trolleys to meet the urgent needs of railways, highways, water conservancy and other fields. Summary of the invention

[0003] The purpose of the utility model is to innovatively develop a special vibration device for a tunnel concrete lining platform driven by a magnetic coupling rodless cylinder to meet the urgent needs of tunnel concrete lining trolley construction.

[0004] The technical scheme of the utility model is as follows: a magnetic-coupled rodless cylinder and a pneumatic vibrator are threadedly installed in a lifting frame shell of the device, and a pneumatic throttle valve for limiting the lifting and lowering speed is installed on the magnetic-coupled rodless cylinder; the upper end of the pneumatic vibrator passes through a rotating disk installed in a trolley template, an oil seal seat is threadedly fixed under the rotating disk, and an oil seal is installed in the oil seal seat to prevent concrete leakage; the trolley template is welded to a fixed plate, the fixed plate and the block are fixed by bolts, and the four blocks are welded into one by I block and II block; an I reinforcement plate is fixed on the upper end of the lifting frame shell, and an II reinforcement plate is fixed on the lower end, the I reinforcement plate is welded to the rotating disk as a whole, and a baffle is welded under the rotating disk.

[0005] The beneficial effects of the utility model are: effectively overcoming the various drawbacks of the existing concrete vibration device for tunnel lining trolleys, meeting the urgent needs of tunnel construction in the fields of railways, highways, water conservancy, etc., having explosion-proof function, self-starting vibration, occupying a small space, small volume, penetrating into the concrete structure of the secondary lining, ensuring the vibration compaction quality, making the tunnel concrete secondary lining construction mechanized and intelligent, reducing the labor intensity of workers, with high operating efficiency and good compaction effect, novel design, reasonable structure, comfortable operation, simple maintenance, safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural stereoscopic schematic diagram of the utility model.

[0007] Figure 2 yes Figure 1 Schematic diagram of a partial cross-section of the structure.

[0008] Figure 3 yes Figure 2 Schematic top view of .

[0009] Figure 4 yes Figure 2 A is a partial enlarged schematic diagram of .

[0010] Figure 5 yes Figure 2 B is a partial enlarged schematic diagram. DETAILED DESCRIPTION

[0011] The details and working process of the present invention are described in detail in conjunction with the attached drawings of the present utility model. A magnetic rodless cylinder 2 and a pneumatic vibrator 3 are threadedly installed in the lifting frame housing 1 of the device, and a pneumatic throttle valve 4 for limiting the lifting and lowering speed is installed on the magnetic rodless cylinder 2; the upper end of the pneumatic vibrator 3 passes through a rotating disk 6 installed in the trolley template 5, and an oil seal seat 7 is threadedly fixed under the rotating disk 6, and an oil seal 8 for preventing concrete leakage is installed in the oil seal seat 7; the trolley template 5 is welded with a fixed plate 9, and the fixed plate 9 is fixed with a stopper 10 by bolts, and the four stoppers 10 are welded into one by I stopper 11 and II stopper 12; the upper end of the lifting frame housing 1 is fixed with I reinforcement plate 13, and the lower end is fixed with II reinforcement plate 14, I reinforcement plate 13 is welded with the rotating disk 6 as a whole, and a stopper 15 is welded under the rotating disk 6.

[0012] During the tunnel construction, when the secondary concrete lining is being constructed, after the concrete is layered and poured alternately and symmetrically on the left and right sides, the power supply is turned on, and the magnetic rodless cylinder 2 starts to operate, driving the pneumatic vibrator 3 to move up and down, and penetrate into the concrete structure of the secondary lining to vibrate the concrete, forming a disturbing force on the concrete structure, overcoming the friction resistance between the concrete mixtures to make them flow, perform relative movement and rearrangement, and remove the gas between the concrete mixtures, so that the concrete structure of the secondary lining is compacted. The rotating disk 6 can rotate in the trolley template 5, so that the pneumatic vibrator 3 rotates eccentrically to avoid the steel bars. When the pneumatic vibrator 3 moves up and down and penetrates into the concrete structure of the secondary lining to vibrate the concrete, the oil seal 8 installed in the oil seal seat 7 can effectively prevent concrete leakage. The four-piece block 10 welded together by the I block 11 and the II block 12 prevents the device from falling off the trolley template 5. The block 15 welded under the rotating disk 6 cooperates with the block 10 to prevent the device from deviating upward.

[0013] The beneficial effects of the utility model are: effectively overcoming various drawbacks of existing concrete vibrators used in tunnel lining trolleys, meeting the urgent needs of tunnel construction in the fields of railways, highways, water conservancy, etc., having explosion-proof function, self-starting vibration, occupying small space and small volume, penetrating deep into the concrete structure of the secondary lining, ensuring the vibration compaction quality, making the tunnel concrete secondary lining construction mechanized and intelligent, reducing the labor intensity of workers, having high operating efficiency, good compaction effect, novel design, reasonable structure, comfortable operation, simple maintenance, safety and reliability.

Claims

1. A special vibration device for tunnel concrete lining platform driven by a magnetic coupling rodless cylinder, characterized in that: A magnetic rodless cylinder (2) and a pneumatic vibrator (3) are threadedly mounted in a lifting frame housing (1) of the device. A pneumatic throttle valve (4) for limiting the lifting and lowering speed is mounted on the magnetic rodless cylinder (2). The upper end of the pneumatic vibrator (3) passes through a rotating disk (6) mounted in a trolley template (5). An oil seal seat (7) is threadedly fixed below the rotating disk (6). An oil seal (8) for preventing concrete leakage is mounted in the oil seal seat (7). The trolley template (5) is welded to a fixing plate (9). The fixing plate (9) is fixed to a stopper (10) by bolts. The four stoppers (10) are welded together by stopper I (11) and stopper II (12). A reinforcement plate I (13) is fixed to the upper end of the lifting frame housing (1), and a reinforcement plate II (14) is fixed to the lower end. The reinforcement plate I (13) is welded to the rotating disk (6) as a whole. A stopper (15) is welded below the rotating disk (6).

Images