CN213173298U

CN213173298U - Inverted arch trestle with large-angle approach bridge lifting device

Info

Publication number: CN213173298U
Application number: CN202021406003.2U
Authority: CN
Inventors: 谢玉军; 曹传刚; 陈煜�; 谢韵睿; 吕光辉; 王明光
Original assignee: Chengdu Ruilong Machinery Manufacturing Co ltd
Current assignee: Chengdu Ruilong Machinery Manufacturing Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-05-11
Anticipated expiration: 2030-07-16

Abstract

The utility model provides an invert trestle with wide-angle approach lifting device, include the well bridge and set up in the approach bridge of well bridge both sides, the well bridge is articulated with the approach bridge, still includes slide, slider, hydro-cylinder, two pulleys, wire rope, wherein, two pulleys set up in the upper end of well bridge and the articulated department of approach bridge, the slide sets firmly the one end of keeping away from the approach bridge in the pulley, and the slider sets up in the slide, and the hydro-cylinder level sets up between slider and approach bridge and the cylinder body of hydro-cylinder is connected with well bridge upper end, and the piston rod is connected with the slider, and wire rope's one end is connected with the slider top, and the other end is connected with the approach bridge after passing the clearance between two sets of pulleys.

Description

Inverted arch trestle with large-angle approach bridge lifting device

Technical Field

The utility model belongs to the technical field of the landing stage, concretely relates to invert landing stage with wide-angle approach lifting device.

Background

In the tunnel construction process, the approach bridge at the side part of the trestle needs to be lifted, then the excavator is adopted to clean up the slag soil between the trestle and the tunnel, the lifting angle of the approach bridge is higher, the space left is larger, and the slag removal is more convenient. In the prior art, a lifting oil cylinder is usually arranged at the hinged position of a middle bridge and an approach bridge of a trestle, as shown in the specification and attached figure 1, the approach bridge is lifted by extending the lifting oil cylinder, and due to the limitation of the length, the strength and the installation space of the lifting oil cylinder, the lifting angle of the lifting oil cylinder relative to the horizontal plane is limited and is usually difficult to exceed 50 degrees, so that enough space is difficult to be made for a muck machine to operate; on the other hand, the influence of gravity after the approach bridge is lifted up can produce a reaction force that is a certain contained angle with the cylinder body to the hydro-cylinder, has exerted a radial power to the piston rod promptly, can influence the axiality of piston rod and hydro-cylinder when reaction force is too big to increase the frictional resistance of piston rod and cylinder body, influence the efficiency of hydro-cylinder, still can lead to interior leakage, the piston rod is crooked when serious, leads to the hydro-cylinder to damage, still goes out the incident easily.

SUMMERY OF THE UTILITY MODEL

Based on above problem, an object of the utility model is to provide an invert landing stage with wide-angle approach lifting device.

In order to realize the above purpose, the utility model discloses a technical scheme be: the utility model provides an invert trestle with wide-angle approach pulling device, includes the well bridge and sets up in the approach bridge of well bridge both sides, the well bridge is articulated with the approach bridge, still includes slide, slider, hydro-cylinder, two pulleys, wire rope, wherein, two pulleys set up in the upper end of well bridge and the articulated department of approach bridge, the slide sets firmly in the one end that the approach bridge was kept away from to the pulley, and the slider sets up in the slide, and the hydro-cylinder level sets up between slider and approach bridge and the cylinder body of hydro-cylinder is connected with well bridge upper end, and the piston rod is connected with the slider, and wire rope's one end and slider top are connected, and the other end is connected with the approach bridge after passing the clearance.

The utility model provides an invert landing stage with wide-angle approach lifting device, during the use, the hydro-cylinder extension, piston rod promote the slider and remove in the slide to it lifts up for the bridge wide-angle to drive the approach.

Specifically, the two ends of the steel wire rope are hinged with the sliding block and the approach bridge respectively, so that the flexibility of the steel wire rope in the pulling process is improved, and meanwhile, the bending deformation of the two ends of the steel wire rope is avoided.

Specifically, a cylinder body and a piston rod of the oil cylinder are respectively hinged with the middle bridge and the sliding seat, so that no bending moment exists in the telescopic process of the oil cylinder, and the oil cylinder is protected.

Specifically, the upper end of the hinged part of the middle bridge and the approach bridge extends vertically upwards to form a connecting block, and the cylinder body of the oil cylinder is hinged with the connecting block and is connected to protect the oil cylinder.

Furthermore, the two pulleys are an upper pulley and a lower pulley which are respectively arranged at the top of the connecting block and close to one side of the approach bridge, when the approach bridge is lifted up, the steel wire rope slides on the upper pulley, and when the approach bridge is put down, the steel wire rope slides on the lower pulley.

The utility model has the advantages that:

(1) the utility model provides an invert trestle with wide-angle approach lifting device, during the use, the hydro-cylinder extension, piston rod promote the slider and remove in the slide to drive the approach and lift up for the bridge wide-angle, the angle of lifting up of approach for the horizontal plane can reach more than 60.

(2) The utility model provides an invert trestle with wide-angle approach lifting device promotes the slider through the hydro-cylinder and follows spout horizontal motion, and the hydro-cylinder receives the reaction force of slider also for the level, when avoiding the direct promotion approach of oil cylinder in the background art, and the approach applies the reaction force that takes the angle to the hydro-cylinder and makes the piston rod produce the deviation and lead to the hydro-cylinder to damage for the cylinder body.

Drawings

Fig. 1 is a schematic view illustrating an approach bridge of a conventional trestle;

FIG. 2 is a schematic view of an inverted trestle with a large-angle approach pulling device in example 1;

FIG. 3 is a schematic illustration of the approach bridge being lifted;

wherein, 1 is the bridge, 2 is the approach bridge, 3 is the slide, 4 is the slider, 5 is the hydro-cylinder, 6 is the upper pulley, 7 is the lower pulley, 8 is wire rope, 9 is the connecting block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

As shown in fig. 2, the embodiment provides an inverted arch trestle with a large-angle approach bridge lifting device, which comprises a middle bridge 1 and approach bridges 2 arranged at two sides of the middle bridge 1, wherein the middle bridge 1 is hinged with the approach bridges 2, and further comprises a slide way 3, a slide block 4 and an oil cylinder 5, two pulleys, wire rope 8, the upper end of the articulated department of medium bridge 1 and approach 2 upwards extends perpendicularly and forms connecting block 9, two pulleys are for installing respectively in connecting block 9 top and being close to upper pulley 6 and lower pulley 7 of approach 2 one side, slide 3 sets firmly the one end of keeping away from approach 2 in the pulley, slider 4 sets up in slide 3, hydro-cylinder 5 level sets up between slider 4 and approach 2 and the cylinder body of hydro-cylinder 5 is articulated with connecting block 9, the piston rod is articulated with slider 4, wire rope 8's one end is articulated with slider 4 top, the other end passes behind the clearance between upper pulley 6 and the lower pulley 7 and articulates with approach 2.

In the inverted arch trestle with the large-angle approach bridge lifting device provided by the embodiment, as shown in fig. 3, the oil cylinder 5 extends, and the piston rod pushes the sliding block 4 to move in the slideway 3, so that the approach bridge 2 is driven to lift at a large angle relative to the middle bridge 1, and in the embodiment, the lifting angle of the approach bridge 2 relative to a horizontal plane can reach 67 degrees.

The above embodiments of the present invention are merely examples for illustrating the present invention and are not intended to limit the embodiments of the present invention. Variations and modifications in other variations will occur to those skilled in the art upon reading the foregoing description. Not all embodiments are exhaustive. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.

Claims

1. The utility model provides an invert trestle with wide-angle approach pulling device, includes the well bridge and sets up in the approach bridge of well bridge both sides, the well bridge is articulated with the approach bridge, its characterized in that still includes slide, slider, hydro-cylinder, two pulleys, wire rope, wherein, two pulleys set up in the upper end of well bridge and the articulated department of approach bridge, the slide sets firmly in the one end that the approach bridge was kept away from to the pulley, and the slider sets up in the slide, and the hydro-cylinder level sets up between slider and approach bridge and the cylinder body of hydro-cylinder is connected with well bridge upper end, and the piston rod is connected with the slider, and wire rope's one end and slider top are connected, and the other end is connected with the approach bridge after passing the clearance.

2. The inverted arch trestle with the large-angle approach bridge lifting device as recited in claim 1, wherein two ends of the steel wire rope are respectively hinged with the sliding block and the approach bridge.

3. The inverted arch trestle with the large-angle approach lifting device as defined in claim 1, wherein the cylinder body and the piston rod of the oil cylinder are respectively hinged with the middle bridge and the sliding seat.

4. The inverted arch trestle with the large-angle approach bridge lifting device as recited in claim 1 or 3, wherein the upper end of the hinged part of the middle bridge and the approach bridge extends vertically upwards to form a connecting block, and the cylinder body of the oil cylinder is hinged with the connecting block.

5. The inverted arch trestle with the large-angle approach lifting device as claimed in claim 4, wherein the two pulleys are an upper pulley and a lower pulley which are respectively installed on the top of the connecting block and on the side close to the approach.