CN222333800U

CN222333800U - A portal lifting device for secondary lining trolley

Info

Publication number: CN222333800U
Application number: CN202421190427.8U
Authority: CN
Inventors: 宁亮亮; 师贺龙; 张泉
Original assignee: Luoyang Shanhai Machinery Manufacturing Co ltd
Current assignee: Luoyang Shanhai Machinery Manufacturing Co ltd
Priority date: 2024-05-29
Filing date: 2024-05-29
Publication date: 2025-01-10
Anticipated expiration: 2034-05-29

Abstract

The utility model provides a portal elevating gear for two lining trolleys, includes door shape frame, arc template, stand, floorbar, auxiliary girder, supporting beam and hydraulic stem, door shape frame set up in the upper portion of platform truck, door shape frame outside is equipped with the arc template, arc template and tunnel inner wall cooperate, the four corners of door shape frame all be equipped with the stand, two stand bottoms that are in same one side all are connected with the floorbar, floorbar upper portion parallel be equipped with auxiliary girder, the both ends of auxiliary girder be connected with the stand, the middle part interval of door shape frame be equipped with the supporting beam that is on a parallel with the floorbar, supporting beam and floorbar between all be equipped with the hydraulic stem. The device has the advantages that the device is simple in structure and convenient to use, the complicated section in the tunnel is handled by adjusting the height of the portal frame, the universality is high, the safety of the trolley is ensured by arranging the auxiliary beam, and the labor intensity of operators is reduced.

Description

Portal lifting device for two-lining trolley

Technical Field

The utility model belongs to the technical field of tunnel construction equipment, and particularly relates to a portal lifting device for a two-lining trolley.

Background

In the existing tunnel construction equipment, a secondary lining trolley is used as one of key equipment and mainly acts on a formwork supporting and pouring process, a certain tunnel is often encountered in tunnel construction, the section is complex, the section heights are different, if the height difference is small, a heightening box is added on the secondary lining trolley, if the height difference is much larger, the bottom beam of the trolley needs to be lifted, so that the bottom beam is too high from the road surface, the safety is difficult to ensure, the bottom beam needs to be additionally arranged below the trolley for ensuring the safety, the difficulty exists in additionally arranging the bottom beam below the trolley, on one hand, the space in the tunnel is limited, on the other hand, the weight of the bottom beam is too large, the labor intensity of operators is large, and other schemes are needed to solve the problem.

Disclosure of utility model

Aiming at the defects existing in the prior art, the utility model aims to design a portal lifting device for a two-lining trolley, which is used for solving the problems of complex tunnel section and section height difference in the prior art and ensuring the operation safety.

The portal lifting device for the two-lining trolley comprises a portal frame, arc-shaped templates, upright posts, bottom beams, auxiliary beams, supporting beams and hydraulic rods, wherein the portal frame is arranged at the upper part of the trolley, the arc-shaped templates are arranged outside the portal frame and matched with the inner wall of a tunnel, the upright posts are arranged at four corners of the portal frame, the bottom of each upright post at the same side is connected with the bottom beams, the auxiliary beams are arranged at the upper parts of the bottom beams in parallel, two ends of each auxiliary beam are connected with the upright posts, the supporting beams parallel to the bottom beams are arranged at the middle part of the portal frame at intervals, and the hydraulic rods are arranged between the supporting beams and the bottom beams.

The lower part of the stand column is of a telescopic box structure and comprises a shell and an inner box, wherein the shell is sleeved outside the inner box and can move up and down under the limit of the inner box, one side of the bottom of the shell is connected with an auxiliary beam, and the bottom of the inner box is connected with a bottom beam.

The vertical bracing piece that is equipped with in middle part of door shape frame both sides, the quantity of bracing piece be a plurality of, a plurality of bracing pieces interval sets up and all perpendicular to auxiliary beam, all is equipped with a supporting beam between the stand at auxiliary beam both ends and the adjacent bracing piece.

One end of the hydraulic rod is arranged at the bottom of the supporting beam, the other end of the hydraulic rod is arranged on the upper surface of the bottom beam, the middle part of the hydraulic rod penetrates through the auxiliary beam, and the lifting of the auxiliary beam is controlled through the expansion and contraction of the hydraulic rod.

And a detachable bearing module is arranged between the auxiliary beam and the bottom beam and is used for supporting the auxiliary beam after the auxiliary beam ascends.

The upright post is also provided with a fastener, and the lifting states of the outer shell and the inner box are limited through the fastener.

The arc-shaped templates are additionally provided with extension templates at the bottoms of the two sides of the raised gantry, and the radian of each extension template is matched with that of the arc-shaped templates.

The device has the advantages that the device is simple in structure and convenient to use, the complicated section in the tunnel is handled by adjusting the height of the portal frame, the universality is high, the safety of the trolley is ensured by arranging the auxiliary beam, and the labor intensity of operators is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a schematic view of the gantry of the present utility model after lifting.

Fig. 3 is a side view schematic of fig. 1.

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

In the figure, 1, a door-shaped frame, 101, a supporting rod, 2, an arc-shaped template, 3, an upright post, 301, a shell, 302, an inner box, 4, a bottom beam, 5, an auxiliary beam, 6, a supporting beam, 7, a hydraulic rod, 8, a bearing module, 9 and an extension template.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is to be noted that the embodiments described are merely some, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a portal lifting device for a two-lining trolley comprises a portal frame 1, an arc-shaped template 2, upright posts 3, a bottom beam 4, an auxiliary beam 5, a supporting beam 6 and a hydraulic rod 7, wherein the portal frame 1 is arranged on the upper portion of the trolley, the arc-shaped template 2 is arranged outside the portal frame 1, the arc-shaped template 2 is matched with the inner wall of a tunnel, upright posts 3 are arranged at four corners of the portal frame 1, the bottom beams 4 are connected to the bottoms of the upright posts 3 on the same side, the auxiliary beam 5 is arranged on the upper portion of the bottom beam 4 in parallel, two ends of the auxiliary beam 5 are connected with the upright posts 3, the supporting beam 6 parallel to the bottom beam 4 is arranged in the middle of the portal frame 1 at intervals, and the hydraulic rod 7 is arranged between the supporting beam 6 and the bottom beam 4. The lower part of the upright post 3 is of a telescopic box structure and comprises a shell 301 and an inner box 302, the shell 301 is sleeved outside the inner box 302 and can move up and down under the limitation of the inner box 302, one side of the bottom of the shell 301 is connected with an auxiliary beam 5, and the bottom of the inner box 302 is connected with a bottom beam 4. The middle part of door shape frame 1 both sides vertically is equipped with bracing piece 101, the quantity of bracing piece 101 be a plurality of, a plurality of bracing pieces 101 interval sets up and all perpendicular to auxiliary beam 5, all is equipped with supporting beam 6 between stand 3 and the adjacent bracing piece 101 at auxiliary beam 5 both ends. One end of the hydraulic rod 7 is arranged at the bottom of the supporting beam 6, the other end of the hydraulic rod 7 is arranged on the upper surface of the bottom beam 4, the middle part of the hydraulic rod 7 penetrates through the auxiliary beam 5, and the lifting of the auxiliary beam 5 is controlled through the expansion and contraction of the hydraulic rod 7. A detachable bearing module 8 is arranged between the auxiliary beam 5 and the bottom beam 4, and the bearing module 8 is used for supporting the auxiliary beam 5 after the auxiliary beam 5 ascends. The upright post 3 is also provided with a fastener, and the lifting state of the outer shell 301 and the inner box 302 is limited by the fastener. The bottom of the two sides of the arc-shaped template 2 after the portal is lifted is additionally provided with an extension template 9, and the radian of the extension template 9 is matched with the radian of the arc-shaped template 2.

The utility model is used when in use:

When the tunnel section difference is high, firstly loosening fasteners on four upright posts 3, then controlling all hydraulic rods 7 to extend, lifting a supporting beam 6 and a door-shaped frame 1 connected with the hydraulic rods 7 upwards under the drive of the hydraulic rods 7, stopping when the door-shaped frame 1 rises to a proper height, generating a gap between an auxiliary beam 5 and a bottom beam 4 connected with the door-shaped frame 1, installing detachable bearing modules 8 in the gap at intervals, matching the bearing modules 8 arranged at intervals with supporting rods 101 arranged at intervals, supporting the auxiliary beam 5 by the bearing modules 8, further supporting the whole door-shaped frame 1, dispersing the stress borne by the fasteners and the hydraulic rods 7 on the upright posts 3, prolonging the service lives of the hydraulic rods 7 and the fasteners, limiting the outer shell 301 and the inner box 302 of the upright posts 3 by using the fasteners, adjusting the radian of the arc-shaped template 2 to be attached to the inner wall of the tunnel, and finally installing extension templates 9 at the bottoms of two sides of the arc-shaped template 2 to finish the lifting of the door frame;

When the tunnel section is restored to the original height, the extension template 9 is removed firstly, the receiving module 8 is removed, the fastening piece of the upright post 3 is removed, the hydraulic rod 7 is controlled to shrink, the supporting beam 6 and the door-shaped frame 1 are gradually lowered to the proper height under the driving of the hydraulic rod 7, the radian of the arc-shaped template 2 is adjusted to be attached to the inner wall of the tunnel, and the fastening piece is used for limiting the outer shell 301 and the inner box 302 of the upright post 3, so that the operation is completed.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

The utility model is not described in detail in the prior art.

Claims

1. A portal elevating gear for two lining trolleys, includes door shape frame (1), arc template (2), stand (3), floorbar (4), auxiliary girder (5), supporting beam (6) and hydraulic stem (7), characterized by door shape frame (1) set up in the upper portion of platform truck, door shape frame (1) outside is equipped with arc template (2), arc template (2) cooperate with tunnel inner wall, the four corners of door shape frame (1) all be equipped with stand (3), two stand (3) bottoms that are in same one side all are connected with floorbar (4), floorbar (4) upper portion parallel be equipped with auxiliary girder (5), the both ends and stand (3) of auxiliary girder (5) be connected, the middle part interval of door shape frame (1) be equipped with supporting beam (6) that are on a parallel with floorbar (4), supporting beam (6) and floorbar (4) between all be equipped with hydraulic stem (7).

2. The portal lifting device for the two-lining trolley is characterized in that the lower part of the upright post (3) is of a telescopic box structure and comprises a shell (301) and an inner box (302), the shell (301) is sleeved outside the inner box (302) and can move up and down under the limit of the inner box (302), one side of the bottom of the shell (301) is connected with an auxiliary beam (5), and the bottom of the inner box (302) is connected with a bottom beam (4).

3. The portal lifting device for the two-lining trolley is characterized in that support rods (101) are vertically arranged in the middle of two sides of the portal frame (1), the number of the support rods (101) is multiple, the support rods (101) are arranged at intervals and are perpendicular to the auxiliary beam (5), and support beams (6) are arranged between the upright posts (3) at two ends of the auxiliary beam (5) and the adjacent support rods (101).

4. The portal lifting device for the two-lining trolley is characterized in that one end of the hydraulic rod (7) is arranged at the bottom of the supporting beam (6), the other end of the hydraulic rod (7) is arranged on the upper surface of the bottom beam (4), the middle part of the hydraulic rod (7) penetrates through the auxiliary beam (5), and lifting of the auxiliary beam (5) is controlled through expansion and contraction of the hydraulic rod (7).

5. The portal lifting device for the two-lining trolley, as claimed in claim 1, is characterized in that a detachable bearing module (8) is arranged between the auxiliary beam (5) and the bottom beam (4), and the bearing module (8) is used for supporting the auxiliary beam (5) after the auxiliary beam (5) ascends.

6. The portal lifting device for the two-lining trolley, as claimed in claim 1, is characterized in that the upright post (3) is also provided with a fastening piece, and the lifting state of the outer shell (301) and the inner box (302) is limited by the fastening piece.

7. The portal lifting device for the two-lining trolley is characterized in that the bottoms of the two sides of the raised portal frame of the arc-shaped template (2) are additionally provided with extension templates (9), and the radian of the extension templates (9) is matched with the radian of the arc-shaped template (2).