CN212686701U

CN212686701U - Tunnel vault girder steel conveyer

Info

Publication number: CN212686701U
Application number: CN202021278744.7U
Authority: CN
Inventors: 陶一铭; 汪诤; 罗帆; 王祥宇
Original assignee: Lanzhou Jiaotong University
Current assignee: Lanzhou Jiaotong University
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-03-12
Anticipated expiration: 2030-07-03

Abstract

The utility model discloses a tunnel vault girder steel conveyer mainly includes capstan winch draw gear, track conveyor, girder steel turn to device, platform elevating gear and frame. The winch traction device is arranged on the rail surface of the rail conveying device and matched with the rail conveying device to pull the bearing trolley to convey the steel beam. The conveying device is fixed on the steering device, when the steel beam is conveyed to the working frame, the platform lifting device starts to operate, a ground worker operates the first hand wheel to enable the platform to be lifted to a required mounting height, and the working frame worker controls the steering device to adjust the angle and the direction through the second hand wheel to enable the steel beam to rotate to a corresponding position to be fixed. The self-locking mechanism of the conveyor winch ensures the parking safety in the conveying process. Four brake wheels are arranged at the bottom of the frame to ensure the stopping performance of the conveyor in the working process. In addition, due to the space limitation of the tunnel, the conveyor is installed in a modularization mode, namely, each module is installed in advance, and simple self-assembly is carried out on a construction site.

Description

Tunnel vault girder steel conveyer

Technical Field

The utility model relates to a girder steel conveying equipment, especially a tunnel arch girder steel conveyer.

Background

The existing tunnel steel beam conveying usually works in a loader conveying and manual conveying mode, namely, a building steel beam is carried to a required place by using a loader and then is manually conveyed to a mounting elevated frame to be mounted and fixed. This kind of transport mode through machinery and manual work has the defect, because the tunnel space is narrow, and the road conditions is complicated, and some shaped steel steelframes weight is great, and lifts the height relatively higher, and is great relatively to artifical consumption, and workman's security threat is great, and its conveying efficiency is unsatisfactory, therefore adopts conventional transport mode to work, has the problem of cost of labor height, conveying efficiency low and workman's potential safety hazard.

In addition, the tunnel excavation can have blasting problems, in order to ensure the safety of mechanical devices and prevent the blasting flyrock of the tunnel from damaging the devices, the mechanical devices cannot adopt hydraulic devices and electromechanical devices, and the narrow working condition of the tunnel working space is complicated, so the transportation of the tunnel steel beams cannot adopt complicated devices with overlarge volumes, and only simple pure mechanical devices can be adopted.

SUMMERY OF THE UTILITY MODEL

In order to overcome among the prior art girder steel transport in-process girder steel weight big, lift high, the workman is easy tired and the cost of labor that leads to is high, work efficiency is low and potential safety hazard defect such as big, the utility model provides an adopt cable wire to pull track to carry tunnel vault girder steel conveyer with platform lift technique, pull the track with the vault girder steel through the cable wire and carry to the platform, go up and down to required height through the platform again, turn to device through the girder steel at last and adjust suitable mounted position and accomplish the installation of tunnel vault girder steel fixed.

The utility model provides a technical scheme that its technical problem adopted is: a tunnel vault steel beam conveyor comprises a winch traction device, a track conveying device, a steel beam steering device, a platform lifting device and a frame, wherein the winch traction device is fixedly installed on an I-shaped steel rail surface of the track conveying device, the track conveying device is fixedly installed on a turntable of the steel beam steering device through bolts, the steel beam steering device is fixedly installed on a first supporting plate of the platform lifting device through a steering shaft and related components, and the platform lifting device is directly and fixedly installed on the frame through four lead screw lifters which are distributed in a rectangular shape.

The winch traction device consists of a winch frame, a third hand wheel, a first worm and gear, a steel cable roller, a steel cable and a fixed pulley. The third hand wheel is fixedly installed at the top end of the first worm, the first worm is fixedly arranged on the twisting frame, the steel cable roller is fixedly installed on the twisting frame, a first worm wheel is fixedly arranged at the protruding shaft end of the steel cable roller, one end of the steel cable is fixedly wound on the steel cable roller, the other end of the steel cable is connected onto the bearing trolley through a fixed pulley, and the fixed pulley and the twisting frame are fixedly installed on an I-shaped steel rail surface of the track conveying device.

The rail conveying device consists of an arc-shaped I-steel guide rail, a first guide rail, a bearing trolley, a second guide rail and a fixed sliding block. The bearing trolley is fixedly arranged on the guide rail spliced by the arc guide rail, the arc guide rail is fixedly arranged at one end of the support ground, the bearing trolley is clamped on the guide rail spliced by the arc guide rail and the first guide rail through wheels of the trolley body, the first guide rail is fixedly arranged at the upper end of the second guide rail, the lower end device of the second guide rail is provided with a fixed sliding block, and the fixed sliding block is fixedly arranged on a turntable of the steel beam steering device.

The steel beam steering device consists of a turntable, a turntable shaft, a second worm and gear, a bearing with a seat, a second hand wheel and a second support plate. The turntable, the steering shaft and the bearing with the seat are directly and fixedly arranged on an upper second support plate, a second worm wheel is further arranged at one end of the steering shaft, the second worm is indirectly fixed on the second support plate through the bearing with the seat, a second hand wheel is arranged at one end of the second worm, and the second support plate is directly fixed on bearing flat steel on a first support plate of the platform lifting device.

The platform lifting device comprises a screw rod lifter, a worm gear commutator, a first supporting plate, a first transmission shaft, a second transmission shaft and a first hand wheel. The lead screw lift, the worm gear commutator and the supporting plate are all fixedly mounted on the frame, the first hand wheel is directly fixed at the transmission input end of the commutator, and the output end of the worm gear commutator is connected with the lead screw lift at two ends through the second transmission shaft.

The frame is formed by welding a steel return section and a small I-shaped steel, and four brake wheels with brakes are distributed at the bottom of the frame.

The utility model has the advantages that:

the utility model discloses a pure mechanical transportation mode, the reduction of very big degree the complicated operating mode that the tunnel excavation formed and the various equipment problems that the excavation blasting brought, compared with prior art's transport, manual transport has been replaced with the mechanical transportation form, the effectual consumption that reduces artifical labour, work efficiency has been improved to a very big degree, the artifical lift of while application platform has replaced big weight, high-frequency, the personal safety of workman under complicated operating mode has also been guaranteed when having alleviated workman fatigue problem, thereby make the engineering can be with low costs, efficient mode construction, also enable the workman light, the work of peace of mind, finally guarantee engineering high quality as scheduled completion.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic engineering view of the main view of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2 according to the present invention;

fig. 4 is a partially enlarged schematic view of fig. 3 according to the present invention;

fig. 5 is a schematic structural view of the lifting device of the present invention.

In the figure: 1. the novel hydraulic brake system comprises a winch frame, 2, a first worm wheel, 3, a third hand wheel, 4, a first worm, 5, an arc-shaped guide rail, 6, a steel cable, 7, a guide block, 8, a bearing trolley, 9, a fixed pulley, 10, a first guide rail, 11, a second guide rail, 12, a fixed sliding block, 13, a flat steel, 14, a second hand wheel, 15, a first hand wheel, 16, a second transmission shaft, 17, a screw rod lifter, 18, a cushion block, 19, a brake wheel, 20, a steering shaft, 21, a second support plate, 22, a first support plate, 23, a second worm, 24, a coupler, 25, a bearing with a seat, 26, a second worm wheel, 27, a worm and worm reverser, 28, a first transmission shaft and 29, and a frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a tunnel vault girder steel conveyer as shown in fig. 1-5, including arc guide rail 5, first guide rail 10, arc guide rail 5 splices into a complete driving guide rail with first guide rail 10, gallows 1, first worm wheel 2, the capstan winch mechanism that first worm 4 and third hand wheel 3 are constituteed drives and walks around the cable wire 6 of fixing fixed pulley 9 on first guide rail 10, come the pulling card to bear the weight of dolly 8 on the concatenation track in order to accomplish the transport of vault girder steel from ground to workman's scaffold, wherein the rail face welding of arc guide rail has two guide blocks 7, guide block 7 mainly is used for realizing the guide of capstan winch cable wire 6, in order to prevent cable wire 6 and arc guide rail 5 excessive friction.

Referring to fig. 2 to 4, the splicing guide rail is fixedly installed above the second guide rail 11, and the second guide rail 11 and the fixed sliding block 12 slide relative to each other, so that the transportation of the whole steel beam and the rail transportation device can be realized, the front and rear positions of the steel beam can be adjusted, and the installation by workers is facilitated. In addition, the fixed sliding block 12 is fixedly installed on a turntable on one side of the steering shaft 20, a second worm wheel 26 is fixedly installed on the other side of the steering shaft 20, a second worm 23 is fixedly installed on the first supporting plate 22 through a bearing 25 with a seat, a second hand wheel 14 is installed at one end of the second worm 23, a worker rotates the second hand wheel 14 to transmit torque to the second worm wheel 26 through the second worm 23, the steering shaft 20 is further driven to rotate, the fixed sliding block 12 can also rotate along with the steering shaft 20, the rail conveying device installed on the fixed sliding block 12 and the whole body of a conveyed steel beam rotate together, and therefore the worker can conveniently adjust the installation angle of the steel beam during construction.

Referring to fig. 3 and 5, as the tunnel excavation blasting needs, hydraulic and electromechanical devices cannot be used for lifting, a purely mechanical lead screw lifter 17 is used for manual power input lifting through a first hand wheel 15, the first hand wheel 15 is connected with a worm gear reverser 27, the worm gear reverser 27 is arranged on the outer side of the whole lifting mechanism, the operation and construction of workers are convenient, the worm gear reverser 27 is a single-in three-out reverser, after manual power is input through the first hand wheel 15, the input power is input into the worm gear reverser and the lead screw lifters 17 distributed at two ends from three output ends of the worm gear reverser 27 through a first transmission shaft 28 and a second transmission shaft 16 respectively, the other worm gear reverser 27 outputs the input power to the lead screw lifters 17 distributed at two ends through the second transmission shafts 17 at two sides simultaneously, four lead screw lifters 17 distributed in a rectangular shape work simultaneously to lift the platform, and lifting the steel beam to be installed to the installation height of the vault for construction and installation.

The utility model discloses in, because the space restriction of tunnel work, the installation of this conveyer is that the modularization goes on, installs each module according to required part promptly in advance, then carries out the whole equipment between a simple module in the construction place.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a tunnel vault girder steel conveyer, includes arc guide rail (5), first guide rail (10), second guide rail (11), steering spindle (20), second backup pad (21), first backup pad (22), lead screw lift (17) and frame (29), its characterized in that: the arc-shaped guide rail (5) and the first guide rail (10) are spliced into a complete travelling crane guide rail and are arranged at the top of a second guide rail (11), the second guide rail (11) is arranged above a fixed sliding block (12), the sliding block (12) is fixedly arranged on a rotary disc at the top end of a steering shaft (20), the steering shaft (20) and the rotary disc are arranged on a second support plate (21), the second support plate (21) is directly and fixedly arranged on a flat steel (13) on the surface of a first support plate (22), four lead screw elevators (17) are distributed on the lower surface of the first support plate (22) in a rectangular manner, a second worm wheel (26) and a second worm (23) of a steering device are further arranged on the lower surface of the first support plate (22), the lead screw elevators (17) are connected with a worm wheel and worm commutator (27) through a coupler (24) and a second transmission shaft (16), and six cushion blocks (18) are, the four screw rod lifters (17) and the two worm and gear commutators (27) are respectively connected and supported by the cushion blocks (18).

2. The tunnel vault steel beam conveyor of claim 1, wherein: the complete running guide rail surface device formed by splicing the arc-shaped guide rail (5) and the first guide rail (10) is provided with a winch mechanism, a guide block (7), a bearing trolley (8) and a fixed pulley (9), and the winch mechanism has a self-locking function.

3. The tunnel vault steel beam conveyor of claim 1, wherein: and bolts with the model number of M24 are arranged at two ends of the second guide rail (11), so that the relative movement stroke between the fixed slide block (12) and the second guide rail (11) is limited.

4. The tunnel vault steel beam conveyor of claim 1, wherein: six cushion blocks (18) are distributed on the rack (29), the cushion blocks (18) respectively bear four lead screw lifters (17) which are distributed in a rectangular mode and worm and gear commutators (27) which are arranged at the middle points of two long sides, the worm and gear commutators (27) are single-in and three-out, the input end of each worm and gear commutators is provided with a first hand wheel (15), and the output end of each worm and gear commutators is respectively connected with the corresponding worm and gear commutators (27) and the lead screw lifters which are symmetrically distributed on two sides through a first transmission shaft (28) and a second transmission shaft (16).

5. The tunnel vault steel beam conveyor of claim 1, wherein: four brake wheels (19) with brakes are fixedly arranged at the bottom of the frame (29) and are distributed in a rectangular mode, and the stopping property of the frame is guaranteed.