CN215879665U - Tunnel engineering grid steel bow member self-control mould - Google Patents

Abstract

The utility model discloses a self-made mould of a tunnel engineering grating steel arch frame, which comprises a base, wherein a base is fixedly arranged on the base, two groups of fixed blocks are fixedly arranged on the base, a chute is arranged on each fixed block, two groups of electric push rods are fixedly arranged on the base, one end of a piston rod of the electric push rod is fixedly connected with a fixing piece, a first extrusion block is fixedly connected on the fixing piece, the two ends of the first extrusion block are both slidably arranged in the sliding groove, and one side of the first extrusion block is fixedly connected with the steel plate, the arch center unit is segmented and the segment length is adjusted according to the design contour and radian, so that the situations of main rib performance damage and incorrect positioning are reduced, the pre-bending base of the splayed rib machine is reformed, the pre-bending height is improved, welding and fitting are facilitated, hole positions can be checked through bolts in the manufacturing process, and adjustment is facilitated when angle steel hole positions are machined.

Description

Tunnel engineering grid steel bow member self-control mould

Technical Field

The utility model relates to the technical field of self-made molds, in particular to a self-made mold for a grid steel arch centering of tunnel engineering.

Background

In the construction process of the tunnel, a grid steel arch is required, the arch is mostly a manufacturing process of four-limb grid steel arches, main ribs are mechanically pre-bent, splayed ribs are prefabricated, the splayed ribs are welded and assembled manually, and the connecting angle steel is calibrated through the ruler amount after manual drilling.

However, in the prior art, tunnel designs such as a relieving line of a golden platform railway speed of 120m/h, except for four-limb grating arches, have the defects that a plurality of sections of mileage are three-limb grating steel arches, the section of the tunnel is small, the angle change of the arc length of the arch is large, the unit length is long, the performance of a main rib is easily damaged due to the angle change in the pre-bending process, and the positioning is not correct.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a self-made mold for a grid steel arch in tunnel engineering, which is used for segmenting an arch unit and adjusting the length of the segment according to a design outline and radian, reducing the situations of damaged main rib performance and incorrect positioning, improving a pre-bending base of a splayed rib machine, improving the pre-bending height so as to facilitate welding and fitting, checking hole positions through bolts in the manufacturing process so as to facilitate adjustment during processing of angle steel hole positions, and solving the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the self-made mold for the grid steel arch centering in tunnel engineering comprises a base, wherein a base is fixedly installed on the base, two groups of fixed blocks are fixedly installed on the base, sliding grooves are formed in the fixed blocks, two groups of electric push rods are fixedly installed on the base, one ends of piston rods of the electric push rods are fixedly connected with fixed plates, first extrusion blocks are fixedly connected onto the fixed plates, two ends of each first extrusion block are slidably installed in the sliding grooves, one side of each first extrusion block is fixedly connected with a steel plate, two groups of limit blocks are fixedly installed on the base, two groups of fixed plates are fixedly installed on the base, top plates are fixedly installed on the two groups of fixed plates, second extrusion blocks are fixedly installed at the lower ends of the top plates, connecting blocks are fixedly installed at the lower ends of the second extrusion blocks, at least three groups of support columns are fixedly installed on the base, be provided with the one-tenth profile base on the support column, the second recess has been seted up on the one-tenth profile base, second recess and second extrusion piece are corresponding the setting, the interior top fixed mounting of base has the pneumatic cylinder, the one end of pneumatic cylinder runs through the base and contradicts in the bottom of one-tenth profile base, fixed mounting has the workstation on the base, be provided with the location fetal membrane on the workstation, the one end of workstation has the bolt through fixed frame welding, first recess has been seted up on the location fetal membrane, be provided with the reinforcing bar in the first recess, the welding has the angle steel on the reinforcing bar, the through-hole has been seted up on the angle steel.

Preferably, four groups of first grooves are formed, and the four groups of first grooves are symmetrically arranged.

Preferably, four groups of steel bars are arranged, and the angle steel is welded on the two groups of steel bars.

Preferably, two groups of through holes are formed in the angle steel, the two groups of through holes are located on the same horizontal straight line, and one end of the bolt is inserted into the through holes.

Preferably, the two sets of limiting blocks are symmetrically arranged, and the steel plate is located between the two sets of limiting blocks.

Preferably, the workbench is a circular arc-shaped workbench, and at least three groups of positioning tire membranes are arranged at equal intervals.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the arch frame unit is segmented and the segment length is adjusted according to the design contour and radian, so that the situations of main rib performance damage and incorrect positioning are reduced;

2. through the design of the steel plate, one side of the first extrusion block is fixedly connected with the steel plate, the steel plate is arranged to be a steel plate with a radian on one side, and the steel plate is positioned between the two groups of limiting blocks, so that the extrusion degree of the splayed rib is increased;

3. through the design of bolts, one end of the workbench is welded with the bolts, and four groups of bolts are arranged in the bolt array.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic view of the positioning of the tire membrane and the first groove of the present invention;

FIG. 3 is a schematic view of the hydraulic cylinder, the forming base and the second extrusion block of the present invention;

FIG. 4 is a schematic structural view of the positioning tire membrane and the reinforcing steel bars of the present invention;

fig. 5 is a schematic structural view of the angle steel and the bolt of the utility model.

In the figure: 1. a base; 2. an electric push rod; 3. a fixing sheet; 4. a base; 5. a fixed block; 6. a chute; 7. a first extrusion block; 8. a steel plate; 9. a limiting block; 10. a top plate; 11. a work table; 12. positioning the fetal membrane; 13. a first groove; 14. a second extrusion block; 15. a fixing plate; 16. connecting blocks; 17. a hydraulic cylinder; 18. a support pillar; 19. forming a base; 20. a second groove; 21. reinforcing steel bars; 22. angle steel; 23. a bolt; 24. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the self-made mold for the grid steel arch centering of the tunnel engineering comprises a base 1, a base 4 is fixedly installed on the base 1, two groups of fixing blocks 5 are fixedly installed on the base 4, a chute 6 is formed in each fixing block 5, two groups of electric push rods 2 are fixedly installed on the base 1, one end of a piston rod of each electric push rod 2 is fixedly connected with a fixing piece 3, a first extrusion block 7 is fixedly connected onto each fixing piece 3, each electric push rod 2 drives each first extrusion block 7 to slide in the chute 6, two ends of each first extrusion block 7 are slidably installed in the chute 6, a steel plate 8 is fixedly connected onto one side of each first extrusion block 7, each steel plate 8 is a steel plate with a radian on one side, the splayed ribs can be conveniently extruded, two groups of limiting blocks 9 are fixedly installed on the base 4, the two groups of limiting blocks 9 are symmetrically arranged, the splayed ribs can be conveniently shaped, and the steel plates 8 are positioned between the two groups of limiting blocks 9, the steel plate 8 extrudes the middle of the splayed rib;

two groups of fixing plates 15 are fixedly installed on a base 1, a top plate 10 is fixedly installed on the two groups of fixing plates 15, a second extrusion block 14 is fixedly installed at the lower end of the top plate 10, a connecting block 16 is fixedly installed at the lower end of the second extrusion block 14, at least three groups of supporting columns 18 are fixedly installed on the base 1, supporting forming seats 19 are supported, forming seats 19 are arranged on the supporting columns 18, second grooves 20 are formed in the forming seats 19, the second grooves 20 and the second extrusion blocks 14 are correspondingly arranged, a hydraulic cylinder 17 is fixedly installed at the inner top of the base 1, one end of the hydraulic cylinder 17 penetrates through the base 1 and abuts against the bottom of the forming seats 19, the hydraulic cylinder 17 is started, the hydraulic cylinder 17 drives the forming seats 19 to move upwards, the second extrusion blocks 14 are inserted into the second grooves 20, and the splayed ribs are extruded and bent;

fixed mounting has workstation 11 on the base 1, be provided with location fetal membrane 12 on the workstation 11, workstation 11 sets up to circular-arc workstation, be convenient for buckle reinforcing bar 21, location fetal membrane 12 equidistant sets up at least three groups, first recess 13 has been seted up on location fetal membrane 12, four groups have been seted up to first recess 13, four groups of first recess 13 are the symmetry setting, be provided with reinforcing bar 21 in the first recess 13, reinforcing bar 21 is provided with four groups, the welding has angle steel 22 on reinforcing bar 21, angle steel 22 welds on two groups of reinforcing bar 21, the welding has bolt 23 on workstation 11, bolt 23 array is provided with four groups, two groups of through-hole 24 have been seted up on the angle steel 22, two groups of through-hole 24 are located same horizontal straight line, and the one end of bolt 23 is pegged graft in the inside of through-hole 24, be convenient for check the hole site.

The working principle is as follows: when using this device, the splayed muscle that will treat processing is put on base 4, start electric putter 2, electric putter 2 drives first extrusion piece 7 and removes, first extrusion piece 7 drives steel sheet 8 and removes, first extrusion piece 7 carries out extrusion to the splayed muscle, then weld the splayed muscle, splayed muscle after the welding is placed on one-tenth profile seat 19, start hydraulic cylinder 17, hydraulic cylinder 17 drives the profile seat 19 rebound, insert the inside of second recess 20 until second extrusion piece 14, make the splayed muscle buckle the shaping, splayed muscle after the bending welds between four groups of reinforcing bar 21, consolidate, make the bow member more firm, because the one end welding of workstation 11 has bolt 23, can check the hole site in the manufacturing process, make the adjustment when processing angle steel 22 hole site.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Tunnel engineering grid steel bow member self-control mould, including base (1), its characterized in that: the base (1) is fixedly provided with a base (4), the base (4) is fixedly provided with two groups of fixed blocks (5), the fixed blocks (5) are provided with a sliding groove (6), the base (1) is fixedly provided with two groups of electric push rods (2), one end of a piston rod of each electric push rod (2) is fixedly connected with a fixed plate (3), the fixed plate (3) is fixedly connected with a first extrusion block (7), two ends of the first extrusion block (7) are slidably arranged in the sliding groove (6), one side of the first extrusion block (7) is fixedly connected with a steel plate (8), the base (4) is fixedly provided with two groups of limit blocks (9), the base (1) is fixedly provided with two groups of fixed plates (15), two groups of fixed plates (15) are fixedly provided with a top plate (10), the lower end of the top plate (10) is fixedly provided with a second extrusion block (14), the lower end of the second extrusion block (14) is fixedly provided with a connecting block (16), at least three groups of support columns (18) are fixedly arranged on the base (1), a forming seat (19) is arranged on the support columns (18), a second groove (20) is formed in the forming seat (19), the second groove (20) and the second extrusion block (14) are correspondingly arranged, a hydraulic cylinder (17) is fixedly arranged at the inner top of the base (1), one end of the hydraulic cylinder (17) penetrates through the bottom of the base (1) and is abutted to the bottom of the forming seat (19), a workbench (11) is fixedly arranged on the base (1), a positioning tire membrane (12) is arranged on the workbench (11), one end of the workbench (11) is welded with a fixing frame bolt (23), a first groove (13) is formed in the positioning tire membrane (12), a reinforcing steel bar (21) is arranged in the first groove (13), the steel bar (21) is welded with angle steel (22), and the angle steel (22) is provided with a through hole (24).

2. The self-made mold for the steel arch of the tunnel engineering grating according to claim 1, which is characterized in that: four groups of first grooves (13) are formed, and the four groups of first grooves (13) are symmetrically arranged.

3. The self-made mold for the steel arch of the tunnel engineering grating according to claim 1, which is characterized in that: four groups of steel bars (21) are arranged, and the angle steel (22) is welded on the two groups of steel bars (21).

4. The self-made mold for the steel arch of the tunnel engineering grating according to claim 1, which is characterized in that: two groups of through holes (24) are formed in the angle steel (22), the two groups of through holes (24) are located on the same horizontal straight line, and one end of the bolt (23) is connected to the inner portion of the through hole (24) in a threaded mode.

5. The self-made mold for the steel arch of the tunnel engineering grating according to claim 1, which is characterized in that: two sets of stopper (9) are the symmetry and set up, just steel sheet (8) are located two sets of between stopper (9).

6. The self-made mold for the steel arch of the tunnel engineering grating according to claim 1, which is characterized in that: the workbench (11) is arranged to be a circular arc-shaped workbench, and at least three groups of positioning tire membranes (12) are arranged at equal intervals.

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