CN220035221U - Auxiliary device for installing arch rib hinge shaft - Google Patents

Abstract

The utility model provides an arch rib hinge shaft installation auxiliary device which comprises a connecting upright post, a supporting force arm, an upper force arm, a jack and a lower force arm, wherein the supporting force arm and the upper force arm are respectively and vertically connected to the opposite ends of the connecting upright post and extend towards the same side of the connecting upright post, the jack is arranged between the upper force arm and the lower force arm, the lower force arm is used for being connected with an arch rib hinge shaft, and the supporting force arm is used for being connected with a hinge shaft embedded plate. The arch rib hinge shaft mounting auxiliary device can enable the arch rib hinge shaft to be smoothly embedded into the hinge shaft embedded plate, and the mounting time of the arch rib head section is saved.

Description

Auxiliary device for installing arch rib hinge shaft

Technical Field

The utility model relates to the technical field of construction of steel tube concrete arch bridges, in particular to an arch rib hinge shaft installation auxiliary device.

Background

The steel pipe concrete arch bridge generally adopts a cable hoisting system to install arch ribs, wherein the hoisting of the arch rib head section is the most critical and complex, and the installation accuracy of the arch rib head section greatly influences the arch rib line shape. When the arch rib head section is installed, the arch rib hinge shaft at the bottom end of the arch rib head section is required to be embedded into the installation groove on the hinge shaft embedded plate in the arch seat. In the prior art, the hinge shaft embedded plate is usually embedded in advance and then is cast together with the arch center for molding. When the arch rib head section is installed, a cable hoisting system is usually adopted to hoist the arch rib head section to the vicinity of a hinge shaft embedded plate in an arch seat, so that the hinge shaft is embedded into an installation groove on the hinge shaft embedded plate, and finally, a chain block is adopted to finely adjust the position of the hinge shaft until the installation error of the arch rib head section is within a preset range. However, before the arch rib is installed, the hinge shaft embedded plate may be exposed to the nature for a long time, or there is a problem that the matching processing precision of the hinge shaft and the installation groove of the hinge shaft embedded plate is not high, so when the arch rib head section is installed, the arch rib head section is installed only by means of the cable hoisting system, and the arch rib hinge shaft is difficult to be embedded into the hinge shaft embedded plate, so that the installation time of the arch rib head section is long.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the background art, and provides an arch rib hinge shaft installation auxiliary device, by adopting the arch rib hinge shaft installation auxiliary device, an arch rib hinge shaft can be smoothly embedded into a hinge shaft embedded plate, and the installation time of an arch rib head section is saved.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides an arch rib hinge installation auxiliary device, includes connecting stand, support arm of force, goes up arm of force, jack and lower arm of force, support arm of force with go up the arm of force respectively perpendicular connect in the opposite both ends of connecting the stand and towards the same side of connecting the stand extends, the jack is located go up the arm of force with between the arm of force down, lower arm of force is used for being connected with the arch rib hinge, support arm of force is used for being connected with the hinge pre-buried board.

Further, the supporting force arm, the upper force arm and the lower force arm are all perpendicular to the connecting upright post, and the jack is parallel to the connecting upright post.

Further, the connecting upright post is a telescopic upright post.

Further, the connecting upright post comprises a sleeve, an inserting rod with one end slidingly inserted in the sleeve and at least one positioning bolt, wherein the sleeve is provided with a plurality of first connecting holes at intervals along the sliding direction of the inserting rod, the inserting rod is provided with a plurality of second connecting holes at intervals along the sliding direction of the inserting rod, and the positioning bolt penetrates one of the first connecting holes and one of the second connecting holes so as to enable the inserting rod to slide and lock relative to the sleeve; one end of the upper force arm is fixedly connected with the inserted link, and one end of the supporting force arm is connected with the sleeve.

Further, the connecting upright post and the supporting arm of force are connected together through a connecting bolt.

Further, the connecting upright post is provided with a jack and a plurality of first positioning holes communicated with the jack, the plurality of first positioning holes are distributed at intervals along the length direction of the jack, one end of the supporting arm of force is slidingly inserted into the jack, the supporting arm of force is provided with a plurality of second positioning holes at intervals along the length direction of the jack, and the connecting bolt penetrates through one of the first positioning holes and one of the second positioning holes.

Further, a sleeper is arranged below the supporting arm of force.

Further, the arch rib hinge shaft installation auxiliary device further comprises a reinforcing force arm, wherein the reinforcing force arm is obliquely arranged, one end of the reinforcing force arm is fixedly connected with one end of the upper force arm, which is far away from the connecting upright post, and the other end of the reinforcing force arm is fixedly connected with the connecting upright post.

Further, one end of the lower arm of force is fixed with the arch rib hinge shaft through welding.

Further, the jack is arranged between the upper force arm and the lower force arm, and the opposite ends of the jack are respectively abutted against the upper force arm and the lower force arm.

By adopting the technical scheme, the utility model has the following beneficial effects:

compared with the prior arch rib head section installation method, the arch rib hinge shaft installation auxiliary device is used for assisting in embedding the arch rib hinge shaft at the bottom end of the arch rib head section into the installation groove of the hinge shaft embedded plate in the arch seat, so that the hinge shaft can enter the installation groove of the hinge shaft embedded plate quickly and efficiently, the hinge shaft can be fully and compactly contacted with the groove wall of the installation groove, arch rib axis and elevation errors caused by uncompacted contact are prevented, the arch rib head section installation time is saved, and the arch rib installation precision is further improved.

Drawings

FIG. 1 is a view showing the use of an arch rib hinge installation assisting device according to a preferred embodiment of the present utility model;

FIG. 2 is an enlarged view of the structure of FIG. 1 at A;

FIG. 3 is a block diagram of the arch rib hinge mounting aid of the preferred embodiment of the present utility model with the jack and lower arm removed;

FIG. 4 is a block diagram of FIG. 3 at another view angle;

FIG. 5 is a block diagram of a plunger according to a preferred embodiment of the present utility model;

FIG. 6 is a block diagram of a support arm in accordance with a preferred embodiment of the present utility model;

FIG. 7 is a schematic illustration of a rib nose segment and abutment prior to installation;

FIG. 8 is a schematic diagram of a cable hoist system for hoisting rib hinges to hinge embedment plates;

fig. 9 is an enlarged view of fig. 8 at B;

description of the main reference signs

10. Connecting the upright posts; 11. a sleeve; 112. a first connection hole; 113. a jack; 114. a first positioning hole; 12. a rod; 121. a second connection hole; 20. supporting a force arm; 21. a second positioning hole; 30. an upper arm of force; 40. a jack; 50. a lower arm of force; 60. reinforcing a force arm; 70. a rib head section; 71. arch rib hinge shaft; 80. an arch base; 81. a hinge shaft embedding plate; 82. a mounting groove; 90. a sleeper; 91. temporary code plates; 93. and a transverse limiting code plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, 2 and 7, a rib hinge shaft mounting auxiliary device according to a preferred embodiment of the present utility model is configured to assist a rib hinge shaft 71 at one end of a rib head section 70 to smoothly enter a mounting groove 82 of a hinge shaft embedding plate 81 embedded in an abutment 80 when the rib head section 70 is mounted. The arch rib hinge shaft installation auxiliary device comprises a connecting upright post 10, a supporting force arm 20, an upper force arm 30, a jack 40 and a lower force arm 50, wherein the supporting force arm 20 and the upper force arm 30 are respectively and vertically connected to the opposite ends of the connecting upright post 10 and extend towards the same side of the connecting upright post 10, the jack 40 is arranged between the upper force arm 30 and the lower force arm 50, the lower force arm 50 is used for being connected with an arch rib hinge shaft 71, and the supporting force arm 20 is used for being connected with a hinge shaft embedded plate 81.

In this embodiment, the connecting column 10 is a telescopic column, and in particular, referring to fig. 3 to 5, the connecting column 10 includes a sleeve 11, a plug 12 with one end slidably inserted into the sleeve 11, and at least one positioning pin (not shown). The sleeve 11 is provided with a plurality of first connecting holes 112 at intervals along the sliding direction of the inserted link 12, and in the present embodiment, the sliding direction of the inserted link 12 is parallel to the length direction of the sleeve 11; the insert rod 12 is provided with a plurality of second connecting holes 121 at intervals along the sliding direction of the insert rod 12, and the positioning bolt penetrates through one of the first connecting holes 112 and one of the second connecting holes 121 so as to enable the insert rod 12 to slide and lock relative to the sleeve 11. When the positioning pin is withdrawn from the connecting column 10, the insertion rod 12 is moved in the length direction of the sleeve 11, thereby adjusting the length of the connecting column 10.

The supporting arm 20 is perpendicular to the connecting upright post 10, one end of the supporting arm 20 is connected to the sleeve 11, in this embodiment, the supporting arm 20 is connected to the connecting upright post 10 through a connecting bolt (not shown), specifically, the sleeve 11 of the connecting upright post 10 is provided with an insertion hole 113 and a plurality of first positioning holes 114 communicated with the insertion hole 113, the length direction of the insertion hole 113 is approximately parallel to the width direction of the connecting upright post 10, and the plurality of first positioning holes 114 are distributed at intervals along the length direction of the insertion hole 113; referring to fig. 6, one end of the supporting arm 20 is slidably inserted into the insertion hole 113, a plurality of second positioning holes 21 are spaced along the length direction of the insertion hole 113 from the supporting arm 20, and the connecting bolt passes through one of the first positioning holes 114 and one of the second positioning holes 21, so that the supporting arm 20 is slidably locked relative to the connecting upright post 10. When the connecting bolt is taken out from the connecting upright post 10 and the supporting force arm 20, the supporting force arm 20 can slide along the insertion hole 113, so that the supporting force arm 20 can be fixed on the hinge shaft embedded plate 81.

The upper arm 30 is perpendicular to the connecting post 10, and in this embodiment, one end of the upper arm 30 may be fixedly connected to the insert rod 12 by welding or the like. The auxiliary device for installing the arch rib hinge shaft further comprises a reinforcing force arm 60, wherein the reinforcing force arm 60 is obliquely arranged, one end of the reinforcing force arm 60 can be fixedly connected with one end of the upper force arm 30 far away from the connecting upright post 10 in a welding mode and the like, the other end of the reinforcing force arm 60 can be fixedly connected onto the inserted link 12 of the connecting upright post 10 in a welding mode and the like, and in the embodiment, the joint of the reinforcing force arm 60 and the connecting upright post 10 is positioned at one side of the upper force arm 30, which is opposite to the supporting force arm 20. The reinforcing force arm 60 can improve the strength of the upper force arm 30 and prevent the upper force arm 30 from being bent and deformed under the force. It will be appreciated that in other embodiments, the stiffening arm 60 may be disposed on the side of the upper arm 30 adjacent the lower arm 50.

The lower force arm 50 is perpendicular to the connecting upright 10, and the lower force arm 50 is located between the upper force arm 30 and the support force arm 20. In the present embodiment, one end of the lower arm 50 and the rib hinge 71 may be fixed by welding or the like. The jack 40 is parallel to the connecting column 10. In this embodiment, the jack 40 is disposed between the upper arm 30 and the lower arm 50, and opposite ends of the jack 40 are respectively abutted against the upper arm 30 and the lower arm 50 by adjusting the piston of the jack 40, so as to prevent the jack 40 from falling out from between the upper arm 30 and the lower arm 50. In this embodiment, the jack 40 is preferably a hydraulic jack, and its structure is a prior art, and for the sake of brevity, it will not be described in detail here.

When the rib pivot mounting auxiliary device of the present embodiment is used to assist in mounting the rib nose section 70, the method generally comprises the steps of:

s1, conveying the arch rib head segment 70 to the vicinity of an arch abutment 80 by using a cable hoisting system (not shown) (FIG. 7);

s2, adjusting the aerial posture of the arch rib head section 70 through the hanging point of the cable winding and unwinding hanging system, so that the upper chord tube and the lower chord tube of the arch rib head section 70 are positioned at preset positions close to the arch base 80 (figure 8);

s3, respectively welding temporary code plates 91 on the hinge shaft embedded plate 81 and the arch rib hinge shaft 71, as shown in FIG. 9;

s4, connecting the hinge shaft embedded plate 81 and the temporary code plates 91 on the arch rib hinge shaft 71 by using a chain block (not shown), and completing the movement of the arch rib hinge shaft 71 along the transverse bridge direction by tightening the chain block, after the hinge shaft embedded plate 81 is aligned with the end part of the arch rib hinge shaft 71, welding the transverse limiting code plates 93 on the hinge shaft embedded plate 81, and limiting the movement of the arch rib hinge shaft 71 along the transverse bridge direction by the transverse limiting code plates 93 at the two ends of the arch rib hinge shaft 71 as shown in FIG. 9;

s5, arranging arch rib hinge shaft installation auxiliary devices at two ends of the arch rib hinge shaft 71 respectively, as shown in fig. 2, specifically:

s51, laying sleepers 90 on the surface of the arch stand 80, then placing the supporting force arm 20 on the sleepers 90, welding one end of the supporting force arm 20 with the hinge shaft embedded plate 81, and bolting the other end of the supporting force arm 20 with the connecting upright post 10 through a connecting bolt;

s52, welding one end of the lower force arm 50 to the arch rib hinge shaft 71, installing the jack 40 between the lower force arm 50 and the upper force arm 30, synchronously using the jacks 40 at two ends of the arch rib hinge shaft 71, and jacking the arch rib hinge shaft 71 into the installation groove 82 of the hinge shaft embedded plate 81 by the reaction force generated by the jacks 40 acting on the upper force arm 30 and the lower force arm 50;

s6, measuring the axial line and elevation deviation of the hinge shaft, and repeating the step S52 until the deviation meets the requirement;

s7, respectively dismantling the chain block and the jack 40, then cutting the welding line of the temporary code plate 91 and the hinge shaft pre-embedded plate 81, the welding line of the temporary code plate 91 and the arch rib hinge shaft 71, the welding line of the transverse limiting code plate 93 and the hinge shaft pre-embedded plate 81, the welding line of the lower force arm 50 and the arch rib hinge shaft 71 and the welding line of the hinge shaft pre-embedded plate 81 for supporting the force arm 20, removing the temporary code plate 91 from the hinge shaft pre-embedded plate 81 and the arch rib hinge shaft 71, removing the transverse limiting code plate 93 from the hinge shaft pre-embedded plate 81, and removing the arch rib hinge shaft mounting auxiliary device from the hinge shaft pre-embedded plate 81 and the arch rib hinge shaft 71, thereby completing the mounting of the arch rib first section 70.

Compared with the prior method for installing the arch rib nose section 70, the arch rib hinge shaft installing auxiliary device is used for assisting in embedding the arch rib hinge shaft 71 at the bottom end of the arch rib nose section 70 into the installing groove 82 of the hinge shaft embedded plate 81 in the arch seat 80, so that the arch rib hinge shaft 71 can enter the installing groove 82 of the hinge shaft embedded plate 81 quickly and efficiently, the arch rib hinge shaft 71 can be fully and tightly contacted with the groove wall of the installing groove 82, arch rib axis and elevation errors caused by non-compact contact are prevented, the installation time of the arch rib nose section 70 is saved, and the installation precision of the arch rib is further improved.

In the rib hinge shaft installation auxiliary device of the embodiment, a sleeper 90 is also arranged below the supporting force arm 20 in a cushioning manner, and the force applied to the supporting force arm 20 can be transmitted to the arch base 80 through the sleeper 90, so that the supporting force arm 20 is prevented from being deformed under force.

In the arch rib hinge shaft installation auxiliary device of the embodiment, the connecting upright post 10 can be adjusted in length, and the supporting arm 20 can slide along the insertion hole 113 so as to meet different construction requirements, and the adaptability of the arch rib hinge shaft installation auxiliary device is improved.

It will be appreciated that in other embodiments, the connecting post 10 may not be a telescopic post structure, and the supporting arm 20 may be directly and fixedly connected to the connecting post 10 by welding or the like.

The foregoing description is directed to the preferred embodiments of the present utility model, but the embodiments are not intended to limit the scope of the utility model, and all equivalent changes or modifications made under the technical spirit of the present utility model should be construed to fall within the scope of the present utility model.

Claims (10)

1. The utility model provides an arch rib hinge installation auxiliary device, its characterized in that, including connecting stand (10), support arm of force (20), go up arm of force (30), jack (40) and lower arm of force (50), support arm of force (20) with go up arm of force (30) respectively perpendicular connection in the opposite both ends of connecting stand (10) and orientation the same side of connecting stand (10) extends, jack (40) are located go up arm of force (30) with between lower arm of force (50), lower arm of force (50) are used for being connected with arch rib hinge (71), support arm of force (20) are used for being connected with hinge pre-buried board (81).

2. The arch rib hinge mounting aid of claim 1, wherein the support moment arm (20), the upper moment arm (30) and the lower moment arm (50) are all perpendicular to the connecting upright (10), and the jack (40) is parallel to the connecting upright (10).

3. Arch rib hinge mounting aid according to claim 1, characterized in that the connecting stud (10) is a telescopic stud.

4. A rib hinge installation aid as claimed in claim 3, wherein said connecting upright (10) comprises a sleeve (11), a plug (12) with one end slidingly inserted in said sleeve (11), and at least one positioning pin, said sleeve (11) being provided with a plurality of first connecting holes (112) at intervals along the sliding direction of said plug (12), said plug (12) being provided with a plurality of second connecting holes (121) at intervals along the sliding direction of said plug (12), said positioning pin being inserted through one of said first connecting holes (112) and one of said second connecting holes (121) so as to allow said plug (12) to be slidingly locked with respect to said sleeve (11); one end of the upper force arm (30) is fixedly connected to the inserted link (12), and one end of the supporting force arm (20) is connected to the sleeve (11).

5. A rib hinge installation aid as claimed in claim 1, characterized in that the connecting stud (10) and the supporting arm (20) are connected together by means of a connecting bolt.

6. The arch rib hinge installation auxiliary device according to claim 5, wherein the connecting upright post (10) is provided with a jack (113) and a plurality of first positioning holes (114) communicated with the jack (113), the plurality of first positioning holes (114) are distributed at intervals along the length direction of the jack (113), one end of the supporting arm (20) is slidingly inserted into the jack (113), the supporting arm (20) is provided with a plurality of second positioning holes (21) at intervals along the length direction of the jack (113), and the connecting bolt penetrates through one of the first positioning holes (114) and one of the second positioning holes (21).

7. An arch rib hinge mounting aid according to claim 1, characterized in that a sleeper (90) is provided under the support moment arm (20).

8. The arch rib hinge mounting aid of claim 1, further comprising a reinforcing arm (60), wherein the reinforcing arm (60) is disposed obliquely, one end of the reinforcing arm (60) is fixedly connected to one end of the upper arm (30) remote from the connecting upright (10), and the other end of the reinforcing arm (60) is fixedly connected to the connecting upright (10).

9. A rib hinge installation aid as claimed in claim 1, characterized in that one end of the lower arm (50) is fixed to the rib hinge (71) by welding.

10. An arch rib hinge mounting aid according to claim 1, wherein the jack (40) is disposed between the upper arm (30) and the lower arm (50), and opposite ends of the jack (40) are respectively abutted against the upper arm (30) and the lower arm (50).