CN213205700U - Swing arm device of waterproof cloth laying trolley - Google Patents

Abstract

The utility model relates to a tunnel construction field especially relates to a swing arm device of tarpaulin laying trolley. The method comprises the following steps: a reel for winding the tarpaulin and axially rotating the tarpaulin; and the telescopic swing arm mechanism is used for supporting the reel and enabling the reel to move annularly. The to-be-solved technical problem of the utility model lies in providing a swing arm device of tarpaulin laying trolley for install on simple and easy rack-type tarpaulin trolley, can launch the automatic intensity of labour that alleviates the workman with the tarpaulin, convenient operation and safety. The utility model has the advantages that: according to the shape of the tunnel, the distance between the swing arm device and the tunnel wall is adjusted through the telescopic swing arm mechanism, and the assembly is more convenient and faster. The waterproof cloth laying mechanism of the winch traction trolley walking rail type can be replaced by an arc-shaped rail, a traction system, a circular trolley and the like, traction movement through the winch traction trolley walking rail is not needed, and the operation is safer.

Description

Swing arm device of waterproof cloth laying trolley

Technical Field

The utility model relates to a tunnel construction field especially relates to a swing arm device of tarpaulin laying trolley.

Background

The waterproof cloth laying trolley is a working trolley specially designed for laying waterproof cloth in tunnel construction. The waterproof cloth trolley used at present mainly comprises a simple rack type and a winch traction trolley traveling track type. Simple and easy rack is formed by the shaped steel tailor-welding, and operating personnel lays and compresses tightly the tarpaulin on the rack, and is very laborious and time-consuming, and is not enough safe during the operation, and the efficiency of construction is low. The winch traction trolley is in a rail type, a traction steel wire rope or a traction chain is arranged on the walking trolley, and the walking trolley is dragged to move by the winch on the trolley. The waterproof cloth trolley is dragged by the steel wire rope or the chain, so that the safety risk is high, and the operation of a constructor is inconvenient.

Disclosure of Invention

The to-be-solved technical problem of the utility model lies in providing a swing arm device of tarpaulin laying trolley for install on simple and easy rack-type tarpaulin trolley, can launch the automatic intensity of labour that alleviates the workman with the tarpaulin, convenient operation and safety.

The utility model discloses a realize like this:

the utility model provides a swing arm device of tarpaulin laying trolley, includes:

a reel for winding the tarpaulin and axially rotating the tarpaulin;

and the telescopic swing arm mechanism is used for supporting the reel and enabling the reel to move annularly.

Further:

the telescopic swing arm mechanism comprises:

the primary swing arms are vertically arranged at two ends of the scroll;

the second-stage swing arm drives the first-stage swing arm to swing, is movably connected with the first-stage swing arm, and is adjusted by a hydraulic cylinder to form a connection angle with the first-stage swing arm;

the driving shaft drives the secondary swing arm to swing, and the driving motor drives the driving shaft to rotate.

The hydraulic cylinder is connected with the servo motor and is controlled to move through the servo motor.

The servo motor is connected with the PLC.

The utility model has the advantages that: according to the shape of the tunnel, the distance between the swing arm device and the tunnel wall is adjusted through the telescopic swing arm mechanism, and the assembly is more convenient and faster. The waterproof cloth laying mechanism of the winch traction trolley walking rail type can be replaced by an arc-shaped rail, a traction system, a circular trolley and the like, traction movement through the winch traction trolley walking rail is not needed, and the operation is safer.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

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

Fig. 2 is a schematic view of the installation of the present invention on the trolley.

Fig. 3 is a using state diagram of the utility model on the trolley.

Fig. 4 is a side view of fig. 2.

Fig. 5 is a structural position diagram.

Detailed Description

Referring to fig. 1, the swing arm device of the tarpaulin laying trolley of the present invention comprises: the waterproof cloth winding device comprises a winding shaft 1 for winding waterproof cloth and enabling the waterproof cloth to axially rotate, and a telescopic swing arm mechanism for supporting the winding shaft and enabling the winding shaft to annularly move. As shown in fig. 2, 3 and 4, the swing arm device is fixedly mounted on the vertical support bar 10 of the bogie frame 100 through a bearing seat 11, and extends to the outside of the bogie through the centers of all the cross members 101.

The telescopic swing arm mechanism comprises: the primary swing arms 2 are vertically arranged at two ends of the scroll 1; the secondary swing arm 3 drives the primary swing arm 2 to swing, the secondary swing arm 3 is movably connected with the primary swing arm 2, and the connection angle of the secondary swing arm 3 and the primary swing arm 2 is adjusted through a hydraulic cylinder 4; a driving shaft 5 driving the secondary swing arm 3 to swing, and a driving motor 6 driving the driving shaft 5 to rotate.

Wherein, the first-stage swing arm 2 drives and adjusts the swing arm angle through the hydraulic cylinder 4, and the second-stage swing arm 3 drives the driving shaft 5 to rotate and drive through the motor reducer 6. The PLC controller controls the servo motor 7, and the servo motor 7 controls the hydraulic cylinder 4 to do linear motion. The control system is controlled by a PLC programmable controller in a wireless remote control mode, and the telescopic length of the hydraulic cylinder can be accurately calculated. According to the shape of the tunnel, the connecting angle of the second-level swing arm 3 and the first-level swing arm 2 is adjusted, and further the distance between the swing arm device and the tunnel wall 200 is adjusted.

By utilizing the PLC, the telescopic length of the hydraulic cylinder can be rapidly calculated, and the method specifically comprises the following steps:

as shown in FIG. 5, set up A as the tunnel centre of a circle, B is the position of the centre of rotation of swing arm device promptly driving shaft, C is the spool position, D is the tie point of second grade swing arm and one-level swing arm, E is the tie point of pneumatic cylinder and second grade swing arm, F is the tie point of pneumatic cylinder and one-level swing arm, EF is the flexible distance of pneumatic cylinder.

It is known that: 2080, 7200, 500.25, 2790.29, 230, 805, mm, AC, BD, ED, and mm; if the angle CBA is equal to 70 °, the angle FDC is equal to 30 °, the angle BDE is equal to 6.5 °, the following are obtained: the FE length.

Solution:

1. firstly, the angle ACB is calculated (sine theorem)

sin∠ACB＝AB/(AC/sin∠CBA)

2. Further calculating the angle of < BAC (inner angle of triangle)

∠BAC＝180°-∠ACB-∠CBA

3. Further determine the length of CB (sine theorem)

CB＝BA/sin∠ACB*sin∠BAC

4. Further calculating the angle of ^ BDC (cosine theorem)

cos∠BDC＝(CD²+DB²-CB²)/(2*CD*DB)

5. Further solving the angle of the angle EDF

∠EDF＝∠BDC-30°-6.5°

6. Further determine the length of FE (cosine theorem)

FE²＝DF²+ED²-2*DF*ED*cos∠EDF

Finally, the telescopic distance of the hydraulic cylinder can be obtained, namely the PLC controls the telescopic length of the servo hydraulic cylinder, so that the waterproof cloth on the reel is pressed and attached to the tunnel wall. Through the transformation of the position of the C point, the telescopic length of the hydraulic cylinder is accurately calculated, so that the waterproof cloth is continuously compressed and attached to the tunnel wall, and the laying of the tunnel waterproof board is completed.

Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.

Claims (4)

1. The utility model provides a swing arm device of platform truck is laid to tarpaulin which characterized in that: the method comprises the following steps:

a reel for winding the tarpaulin and axially rotating the tarpaulin;

and the telescopic swing arm mechanism is used for supporting the reel and enabling the reel to move annularly.

2. The swing arm apparatus of a tarpaulin laying carriage of claim 1, wherein: the telescopic swing arm mechanism comprises:

the primary swing arms are vertically arranged at two ends of the scroll;

the second-stage swing arm drives the first-stage swing arm to swing, is movably connected with the first-stage swing arm, and is adjusted by a hydraulic cylinder to form a connection angle with the first-stage swing arm;

the driving shaft drives the secondary swing arm to swing, and the driving motor drives the driving shaft to rotate.

3. The swing arm apparatus of a tarpaulin laying carriage of claim 2, wherein: the hydraulic cylinder is connected with the servo motor and is controlled to do linear motion through the servo motor.

4. The swing arm apparatus of a tarpaulin laying carriage of claim 3, wherein: the servo motor is connected with the PLC.

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