CN212774334U

CN212774334U - Waterproof cloth laying trolley

Info

Publication number: CN212774334U
Application number: CN202021776696.4U
Authority: CN
Inventors: 樊龙; 郭生辉; 杨喜林
Original assignee: Fujian Zhurong Construction Machinery Co ltd
Current assignee: Fujian Zhurong Construction Machinery Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-03-23
Anticipated expiration: 2030-08-24

Abstract

The utility model relates to a tunnel construction field especially relates to a tarpaulin laying trolley. The waterproof cloth laying trolley comprises a trolley body and a telescopic swing arm device which is arranged on the trolley body and used for laying waterproof cloth. The to-be-solved technical problem of the utility model lies in providing a tarpaulin laying trolley, can launch the tarpaulin is automatic, alleviates workman's intensity of labour, convenient operation and safety. The utility model has the advantages of as follows: 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

Waterproof cloth laying trolley

Technical Field

The utility model relates to a tunnel construction field especially relates to a 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.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a tarpaulin laying trolley, can launch the tarpaulin is automatic, alleviates workman's intensity of labour, convenient operation and safety.

The utility model discloses a realize like this:

the utility model provides a tarpaulin laying trolley, includes the platform truck body, and install in the retractable swing arm device that is used for carrying out the tarpaulin and lays on the platform truck body.

Further:

the retractable swing arm device 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 trolley body comprises a plurality of trolley frames connected through longitudinal supporting rods, each trolley frame comprises a top beam, a cross beam and a fixing frame, the bottom of the cross beam is parallel to the longitudinal beams at two ends of the cross beam, and the cross beam is connected with the top beam through a plurality of parallel stand columns and inclined supporting rods symmetrically arranged on two sides. The driving shaft of the telescopic swing arm device is horizontally and vertically arranged at the center of the cross beam and is fixedly connected to the longitudinal supporting rod through a bearing seat.

And a plurality of extension rods are arranged on the outer sides of the inclined support rods and the longitudinal beams.

The above-mentioned "a number" means two or more.

The utility model has the advantages of as follows: 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 structural diagram of the retractable swing arm device.

Fig. 3 is a usage state diagram of the present invention.

Fig. 4 is a side view of fig. 1.

Fig. 5 is a structural position relationship diagram.

Detailed Description

Example 1

Referring to fig. 1 to 4, a tarpaulin laying trolley comprises a trolley body and a retractable swing arm device mounted on the trolley body for laying a tarpaulin.

The retractable swing arm device includes: 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. 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.

The trolley body comprises a plurality of trolley frames 100 connected through longitudinal support rods 10, each trolley frame 100 comprises a top beam 101, a cross beam 102 and a longitudinal beam 103 fixed at the bottom of the cross beam 102 and arranged at the two ends of the cross beam 102 in parallel, and the cross beam 102 is fixedly connected with the top beam 101 through a plurality of parallel upright columns 104 and inclined support rods 105 symmetrically arranged on two sides. The driving shaft 5 of the telescopic swing arm device penetrates through the centers of all the cross beams 102 and extends out of the trolley body, and is fixedly connected to the longitudinal support rod 10 through a bearing seat 11.

The outer sides of the inclined support rods 105 and the longitudinal beams 103 are provided with a plurality of extension rods 106, so that the operation of technicians is facilitated, and the overall stability of the trolley frame 100 can be enhanced.

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

1. The utility model provides a tarpaulin laying trolley, includes the platform truck body, its characterized in that: the trolley is characterized by also comprising a telescopic swing arm device which is arranged on the trolley body and used for laying waterproof cloth;

the retractable swing arm device includes:

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

a telescopic swing arm mechanism for supporting the reel and making the reel move annularly;

the telescopic swing arm mechanism comprises:

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

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 by the servo motor; the servo motor is connected with the PLC.

2. The tarpaulin laying carriage of claim 1, wherein: the trolley body comprises a plurality of trolley frames connected through longitudinal support rods, each trolley frame comprises a top beam, a cross beam and longitudinal beams fixed at the bottom of the cross beam and arranged at two ends of the cross beam in parallel, and the cross beam is fixedly connected with the top beam through a plurality of parallel stand columns and inclined support rods symmetrically arranged at two sides of the cross beam; the driving shaft of the telescopic swing arm device is horizontally and vertically arranged at the center of the cross beam and is fixedly connected to the longitudinal supporting rod through a bearing seat.

3. The tarpaulin laying carriage of claim 2, wherein: and a plurality of extension rods are arranged on the outer sides of the inclined support rods and the longitudinal beams.