Steel bar laying device for tunnel construction

Abstract

The utility model relates to the technical field of tunnel construction equipment, and discloses a steel bar laying device for tunnel construction, which comprises a door-shaped frame, a plurality of arched tracks and two power components, the door-shaped frame is fixed in the arched tracks, the arched tracks are distributed along the direction perpendicular to the plane where the arched tracks are located, and the two power components are arranged on the door-shaped frame. The two power assemblies are both installed on the top of the door-shaped frame, the tackle assemblies are installed on the arched rails, the power assemblies are used for driving the corresponding tackle assemblies to reciprocate along the arched rails, the adjacent tackle assemblies are connected through cross beams, and steel bar clamping pieces are installed on the cross beams. The reinforcing steel bar laying device for tunnel construction has the advantages that the pulley assembly walks on the arched track to drive the clamping piece to pull the reinforcing steel bar onto the arched track, and finally the reinforcing steel bar is shaped to be in an arc shape after the two ends of the reinforcing steel bar pulled onto the arched track are fixed, so that automatic laying of the reinforcing steel bar is achieved. The labor intensity of workers is reduced, and the efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel construction equipment technical field, especially a reinforcing bar laying device for tunnel construction. BACKGROUND

[0002] In tunnel construction engineering, waterproof and hoop reinforcement need to be laid along the inner wall of the tunnel before concrete pouring, and a construction trolley is usually needed.

[0003] Chinese utility model patent (authorized announcement number: CN209469438U name: tunnel excavation trolley) including bottom layer trolley and being established on bottom layer trolley upper layer trolley, the upper layer trolley has at least one layer, and the upper layer trolley can walk longitudinally relative to the bottom layer trolley, and when the upper layer trolley is multilayer, each layer of the upper layer trolley has independent walking power and can walk longitudinally relative to adjacent lower layer. Preferably, the bottom layer trolley is loaded on a wheeled frame, the upper layer trolley is composed of middle layer trolley and top layer trolley, the middle layer trolley can walk longitudinally relative to the bottom layer trolley, and the top layer trolley can walk longitudinally relative to the middle layer trolley, one end of the bottom layer trolley is provided with a trestle, a steel rail bridge or a drawbridge for the middle layer trolley to walk, and one end of the middle layer trolley is provided with a trestle or a steel rail bridge for the top layer trolley to walk. The utility model has the beneficial effects that it is in the form of multilayer combination, can adapt to full-face, double-step or three-step tunnel excavation by changing the combination state, has a wide range of adaptation, can be reused and effectively reduces the cost of tunnel excavation. However, when laying the arc-shaped reinforcement, the construction personnel need to stand on the trolley to send the reinforcement of about 9-30m long welded on the ground from the side of the trolley to the arch part, and use the elasticity of the reinforcement (generally with a diameter of 22-25mm) to form a ring on the outside of the trolley and then bundle it, which is labor-intensive for the workers during construction. SUMMARY

[0004] The utility model aims at providing a reinforcing bar laying device for tunnel construction to overcome the shortcomings of the prior art.

[0005] The utility model discloses a reinforcing bar laying device for tunnel construction, including door type frame, a plurality of arc-shaped tracks and two power components, the door type frame is fixed in the arc-shaped track, a plurality of arc-shaped tracks distribute along the direction perpendicular to the plane where they are, two power components are installed at the top of the door type frame, two power components are located at the beginning and the end of the distribution direction of the arc-shaped track respectively, the arc-shaped track is installed with the trolley assembly, the power component is used to drive corresponding trolley assembly reciprocating motion along the arc-shaped track, adjacent trolley assemblies are connected through the crossbeam, the crossbeam is installed with the reinforcing bar clamping piece, the reinforcing bar clamping piece is a plurality of and is evenly distributed along the extension direction of the crossbeam.

[0006] Preferably, the clamping piece comprises a chain, a connecting plate and a sleeve, the chain is used for suspending the connecting plate on the cross beam, the sleeve is fixed on the connecting plate and away from the chain, a notch is formed on the sleeve and extends from one end to the other end of the sleeve, and a limiting table is further fixed in the sleeve and extends from one side to the other side of the notch.

[0007] Preferably, the power assembly comprises a reduction motor and a main sprocket, the reduction motor is fixed on the top of the door-shaped frame, two reduction motors are connected through a transmission shaft, the main sprocket is rotatably installed on the door-shaped frame and is driven by the reduction motor, a plurality of auxiliary sprockets are installed on the door-shaped frame and the arc-shaped track, the auxiliary sprockets on the arc-shaped track are arranged in an arc shape, the main sprocket and the auxiliary sprockets are connected through a transmission chain, and the transmission chain is connected with the trolley assembly through a chain.

[0008] Preferably, one sleeve is fixed on each side of the connecting plate.

[0009] Preferably, the trolley assembly comprises a pair of rollers and a door-shaped support, the rollers are rotatably installed on the inner sides of the door-shaped support, the rollers are arranged on the two inner side walls of the door-shaped support respectively, the arc-shaped track is clamped between the rollers, and the chain is hingedly connected on the door-shaped support.

[0010] Compared with the prior art, the tunnel construction steel bar laying device has the advantages that:

[0011] The tunnel construction steel bar laying device provided by the utility model realizes automatic laying of the steel bar, reduces the labor intensity of workers and is high in efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Fig. 1 is a structural schematic diagram of the utility model;

[0013] Figure 2 Fig. 2 is a partial enlarged schematic diagram of A in Fig. 1; Figure 1

[0014] Figure 3 Fig. 5 is an installation structural schematic diagram of the transmission chain;

[0015] ​In the figure, 1 - door frame, 2 - arch rail, 3 - crossbeam, 4 - iron chain, 5 - connecting plate, 6 - sleeve, 7 - notch, 8 - limiting platform, 9 - speed reducer motor, 10 - main sprocket, 11 - auxiliary sprocket, 12 - transmission chain, 13 - chain, 14 - roller, 15 - door support, 16 - transmission shaft. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0019] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0020] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, still need explaining, unless another explicit provision and limitation, term "arrangement", "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through the intermediate medium indirectly connect, can be two element internal communication. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0022] As Figure 1 Indicated, a kind of reinforcing bar laying device for tunnel construction, including door frame 1, several arch tracks 2 and two power components, door frame 1 is fixed in arch track 2, several arch tracks 2 are distributed along the direction perpendicular to its plane, two power components are installed at the top of door frame 1, two power components are located at the beginning and end of the distribution direction of arch track 2, the area between door frame 1 and arch track 2 is used to build construction platform, construction platform is set to multilayer, trolley assembly is installed on arch track 2, power component is used to drive corresponding trolley assembly reciprocating motion along arch track 2, adjacent trolley assembly is connected by crossbeam 3, steel bar clamping piece is installed on crossbeam 3, steel bar clamping piece is several and is uniformly distributed along the extension direction of crossbeam 3, the reinforcing bar laying device for tunnel construction provided by the utility model, by trolley assembly walking on arch track 2 to drive clamping piece to pull steel bar on arch track 2, finally after the both ends of steel bar pulled on arch track 2 are fixed, make steel bar shaping arc, to realize the automatic laying of steel bar, not only reduce the labor intensity of worker and high efficiency.

[0023] In the embodiment, as Figure 2 Indicated, clamping piece includes iron chain 4, connecting plate 5 and sleeve 7, iron chain 4 is used to hang connecting plate 5 on crossbeam 3, sleeve 7 is fixed on connecting plate 5 and away from iron chain 4, notch 7 is formed in sleeve 7, notch 7 extends from one end of sleeve 7 to the other end, limit table 8 is also fixed in sleeve 7, limit table 8 extends from one side of notch 7 to the other side, the end of steel bar is fixed with connecting sleeve, the outer diameter of connecting sleeve is greater than the diameter of steel bar, after connecting sleeve is clamped into sleeve 7, trolley assembly is started, steel bar is pulled on arch track 2 under the action of trolley assembly, and in the process of dragging steel bar, flexible connection is formed by iron chain 4, can avoid the transmission of the force rigidity generated by jumping and bending deformation of steel bar when being pulled on trolley to clamp, lead to rigid clamp deformation or damage, prolong the service life of clamp.

[0024] In the embodiment, as Figure 1 And 3As shown, the power assembly includes a reduction motor 9 and a main sprocket 10, the reduction motor 9 is fixed on the top of the door frame 1, two reduction motors 9 are linked through a transmission shaft 16, the main sprocket 10 is rotatably installed on the door frame 1 and is driven by the reduction motor 9, the door frame 1 and the arch-shaped track 2 are both provided with a plurality of secondary sprockets 11, the secondary sprockets 11 on the arch-shaped track 2 are arranged in an arch shape, the main sprocket 10 and the secondary sprockets 11 are linked through a transmission chain 12, the transmission chain 12 is connected with the trolley assembly through a chain 13, two synchronous reduction motors 9 enhance the power when the cross beam 3 moves, avoiding the reinforcement laying process from being stuck due to insufficient power.

[0025] In the embodiment, as shown in the figure, Figure 3 The two sides of the same block connecting plate 5 are both fixed with a sleeve 7, which increases the mounting amount of the reinforcement on the single iron chain 4 and improves the reinforcement laying efficiency.

[0026] In the embodiment, as shown in the figure, Figure 3 The trolley assembly includes a pair of rollers 14 and a door-shaped support 15, the rollers 14 are rotatably installed on the inner sides of the door-shaped support 15, the same pair of rollers 14 are respectively located on the two inner side walls of the door-shaped support 15, the arch-shaped track 2 is clamped between the same pair of rollers 14, and the chain 13 is hinged on the door-shaped support 15, so that the structure is simple and the operation is stable.

[0027] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A rebar laying device for tunnel construction, comprising a portal frame (1), a plurality of arched tracks (2), and two power components, wherein the portal frame (1) is fixed inside the arched tracks (2), the plurality of arched tracks (2) are distributed along a direction perpendicular to their respective faces, and the two power components are both installed on the top of the portal frame (1), characterized in that: The two power components are located at the beginning and end of the distribution direction of the arched track (2), respectively. A trolley assembly is installed on the arched track (2). The power components are used to drive the corresponding trolley assembly to reciprocate along the arched track (2). Adjacent trolley assemblies are connected by a crossbeam (3). A steel bar clamp is installed on the crossbeam (3). The steel bar clamp consists of several clamps and is evenly distributed along the extension direction of the crossbeam (3). The clamp includes a chain (4), a connecting plate (5), and a sleeve (6). The chain (4) is used to suspend the connecting plate (5) on the crossbeam (3). The sleeve (6) is fixed on the connecting plate (5) and away from the chain (4). A notch (7) is opened on the sleeve (6). The notch (7) extends from one end of the sleeve (6) to the other end. A limiting platform (8) is also fixed inside the sleeve (6). The limiting platform (8) extends from one side of the notch (7) to the other side.

2. The rebar laying device for tunnel construction according to claim 1, characterized in that: The power assembly includes a geared motor (9) and a main sprocket (10). The geared motor (9) is fixed on the top of the portal frame (1). The two geared motors (9) are linked together through a transmission shaft (16). The main sprocket (10) is rotatably mounted on the portal frame (1) and driven by the geared motor (9). Several secondary sprockets (11) are installed on both the portal frame (1) and the arched track (2). The secondary sprockets (11) on the arched track (2) are arranged in an arch shape. The main sprocket (10) and the secondary sprockets (11) are linked together through a transmission chain (12). The transmission chain (12) is connected to the trolley assembly through a chain (13).

3. The rebar laying device for tunnel construction according to claim 1, characterized in that: A sleeve (6) is fixed on both sides of the connecting plate (5) of the same block.

4. A rebar laying device for tunnel construction according to claim 2, characterized in that: The trolley assembly includes a pair of rollers (14) and a gantry bracket (15). The rollers (14) are rotatably mounted on the inner side of the gantry bracket (15). The pair of rollers (14) are located on the two inner side walls of the gantry bracket (15). The arched track (2) is clamped between the pair of rollers (14). The chain (13) is hinged to the gantry bracket (15).

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