CN115163138A - Circumferential steel bar positioning mechanism for operation of tunnel steel bar cage - Google Patents

Abstract

The invention provides a circumferential steel bar positioning mechanism for tunnel steel bar cage operation, which is arranged on a rail car and comprises a plurality of clamping hooks, an outer layer steel bar guiding assembly and an inner layer steel bar guiding assembly, wherein the clamping hooks are movably connected on the rail car and are uniformly arranged along the extension direction of the rail car so as to be clamped into one end of a circumferential steel bar, and the outer layer steel bar guiding assembly and the inner layer steel bar guiding assembly are arranged on the rail car and are respectively used for guiding and positioning the outer layer circumferential steel bar and the inner layer circumferential steel bar so as to ensure that the outer layer circumferential steel bar and the inner layer circumferential steel bar are arranged at equal intervals, equal layer intervals and concentrically. By using the annular reinforcing steel bar positioning mechanism, the operation quality and efficiency of the tunnel reinforcing steel bar cage can be improved, and the number of constructors is reduced.

Description

Circumferential steel bar positioning mechanism for operation of tunnel steel reinforcement cage

Technical Field

The invention relates to the technical field of tunnel construction, in particular to a circumferential reinforcing steel bar positioning mechanism for tunnel reinforcement cage operation.

Background

In the tunnel construction process, reinforcement cage ligature is one must process, can carry out pouring of tunnel two lining concrete after reinforcement, reinforcement cage ligature's quality and efficiency directly influence follow-up process and even whole tunnel construction's quality and progress, reinforcement cage mainly comprises hoop reinforcing bar, longitudinal reinforcement, the stirrup is constituteed, reinforcement cage ligature requirement, hoop reinforcing bar (the general 18-25mm of diameter) is the arc along tunnel arch direction and arranges, interval 200mm, and divide into inside and outside two-layer arrangement, the radius of inlayer hoop reinforcing bar is 6720mm, the radius of outer hoop reinforcing bar is different according to the country rock, inside, the interval of outer hoop reinforcing bar is between 260-360mm, longitudinal reinforcement (the general 14mm of diameter) arranges along tunnel inner wall circumference, interval 250mm, longitudinal reinforcement and inside, the laminating ligature of outer hoop reinforcing bar respectively, the stirrup (the general 8mm of diameter) is connected inside, the crossing point of outer hoop reinforcing bar and longitudinal reinforcement, its both ends are connected with inside, outer hoop reinforcing bar respectively. In the construction process, particularly, the diameter of the circumferential steel bars is generally about 18-25mm, the length is 27 meters, the weight is about 100kg, about 10-12 persons are needed, the circumferential steel bars stand at different positions on a steel bar trolley, the circumferential steel bars can be pulled onto the trolley through common relay transmission and then are lifted together to be positioned and fixed, a tunnel working unit with the length of 6 meters is formed, 60 circumferential steel bars are arranged on the inner layer and the outer layer, the operation is repeated for 60 times, the working efficiency is low, the number of workers is large, and the requirements of various binding sizes of the steel bar cage cannot be effectively met. At present, current reinforcing bar operation platform truck just acts as a scaffold frame function, stands when making things convenient for workman's operation, and it is difficult to promote quality, efficiency. Therefore, how to realize the conveying and positioning of the annular reinforcing steel bars is a technical problem to be solved urgently.

Disclosure of Invention

In view of the above, the present invention provides a circumferential reinforcement positioning mechanism for a tunnel reinforcement cage operation, so as to improve the quality and efficiency of the tunnel reinforcement cage operation and reduce the number of constructors.

The technical scheme of the invention is as follows:

the invention provides a circumferential steel bar positioning mechanism for tunnel steel bar cage operation, which is arranged on a rail car and comprises a plurality of clamping hooks, an outer layer steel bar guiding assembly and an inner layer steel bar guiding assembly, wherein the clamping hooks are movably connected on the rail car and are uniformly arranged along the extension direction of the rail car so as to be clamped into one end of a circumferential steel bar, and the outer layer steel bar guiding assembly and the inner layer steel bar guiding assembly are arranged on the rail car and are respectively used for guiding and positioning the outer layer circumferential steel bar and the inner layer circumferential steel bar so that the outer layer circumferential steel bar and the inner layer circumferential steel bar are arranged at equal intervals, equal layer distances and are concentrically arranged.

Furthermore, the trip is formed with the spacing groove of the adaptation of hoop reinforcing bar tip and the mouth of getting and putting that is linked together with the spacing groove and adapts to the external diameter of hoop reinforcing bar.

Furthermore, the device also comprises a chain, and the clamping hook is movably connected to the rail car through the chain.

Furthermore, each chain is correspondingly connected with two clamping hooks for being clamped into the outer-layer annular reinforcing steel bars and the inner-layer annular reinforcing steel bars respectively.

Further, inlayer reinforcing bar direction subassembly includes deflector and interior leading wheel, and the deflector is installed on the railcar and extends along the railcar extending direction, and a plurality of guide ways have been seted up at the interval on the deflector, and each guide way corresponds to rotate and installs an interior leading wheel, and interior leading wheel rotates and installs on the deflector.

Further, outer reinforcing bar direction subassembly includes outer leading wheel and guide bar, and the outer leading wheel has all been erect to the top that just is located each interior leading wheel on the deflector, and the guide bar erects on the deflector and parallel arrangement in the outside of outer leading wheel, forms the outer direction space that supplies outer hoop reinforcing bar to pass between outer leading wheel and the guide bar.

Further, still including installing the radial interval adjustment mechanism between outer layer reinforcing bar direction subassembly and inlayer reinforcing bar direction subassembly to adjust the interval between outer layer hoop reinforcing bar and the inlayer hoop reinforcing bar.

Further, radial interval adjustment mechanism includes uide bushing, telescopic link and connecting rod, and a plurality of uide bushings are installed on inlayer reinforcing bar direction subassembly, and slidable mounting has the telescopic link in every uide bushing, and the connecting rod is installed on the top of two telescopic links that are located between two adjacent guide ways, and outer leading wheel is installed between two adjacent connecting rods, and the guide bar erects on the connecting rod.

Furthermore, the radial distance adjusting mechanism comprises an adjusting plate and fastening bolts, a plurality of screw holes are formed in the position, corresponding to each connecting rod, of the guide plate, one end of the adjusting plate is connected with the connecting rods, the other end of the adjusting plate is fixed to the guide plate through the fastening bolts, and the fastening bolts are in threaded connection with the screw holes of the guide plate.

Further, connect many hoop reinforcing bar one end of tunnel road surface one side respectively on the trip, start the railcar and remove the inverted arch reinforcing bar department to the tunnel road surface opposite side, make many hoop reinforcing bars of connecting on the trip be the arc and support on the platform truck, take off the hoop reinforcing bar, pass outer reinforcing bar direction subassembly and inlayer reinforcing bar direction subassembly respectively with the one end of every hoop reinforcing bar, in order to divide into many hoop reinforcing bars inside and outside two-layer and carry out equidistant location and section radial direction along the tunnel extending direction and carry out the equidistant location.

The invention has the beneficial effects that:

the hoop reinforcement positioning mechanism for the operation of the tunnel reinforcement cage is provided with the clamping hooks, the outer reinforcement guiding assembly and the inner reinforcement guiding assembly are matched, one ends of hoop reinforcements can be connected through the clamping hooks, the hoop reinforcements can be drawn to the trolley at one time under the driving of the trolley, the hoop reinforcements can be accurately positioned at equal intervals and equal layer distances to the outer hoop reinforcements and the inner hoop reinforcements on the trolley, the hoop reinforcement positioning precision is improved, the number of constructors can be greatly reduced, and the operation quality and efficiency of the tunnel reinforcement cage are effectively improved.

Preferred embodiments of the present invention and advantageous effects thereof will be described in further detail with reference to specific embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings, there is shown in the drawings,

FIG. 1 is a schematic perspective view of a construction apparatus for a steel reinforcement cage for a tunnel according to the present invention;

fig. 2 is a schematic structural view of a tunnel reinforcement cage operation device in a front view;

FIG. 3 is a schematic top view of the construction of the apparatus for working a reinforcement cage in a tunnel according to the present invention;

FIG. 4 is a schematic perspective view of a reinforcement drawing apparatus of the present invention;

FIG. 5 is a schematic structural diagram of a steel bar drawing device of the tunnel steel bar cage working equipment according to the present invention;

FIG. 6 is a schematic top view of the reinforcement drawing apparatus of the present invention;

FIG. 7 is a schematic side view of a reinforcement drawing apparatus of the present invention;

FIG. 8 is a partially enlarged view of a reinforcement drawing apparatus of the present invention;

FIG. 9 is an enlarged view of a portion of a hook of the inventive tunnel reinforcement cage work apparatus;

FIG. 10 is a reference diagram showing the use status of the steel bar pulling device of the tunnel steel bar cage working equipment of the present invention;

FIG. 11 is a schematic perspective view of a longitudinal reinforcement storage mechanism of the tunnel reinforcement cage working apparatus according to the present invention;

fig. 12 is a schematic front view of the longitudinal reinforcement storage mechanism of the tunnel reinforcement cage working equipment of the present invention;

FIG. 13 is a reference view of the longitudinal reinforcement storage mechanism of the reinforcement cage working apparatus for tunnels of the present invention in use;

fig. 14 is a reference diagram of the use state of the circumferential reinforcement positioning mechanism of the tunnel reinforcement cage working equipment of the present invention;

fig. 15 is a first use state reference view of the tunnel reinforcement cage working equipment of the present invention;

fig. 16 is a reference view showing a second use state of the tunnel reinforcement cage working equipment of the invention.

The reference numbers indicate: 1. a trolley; 2. a steel bar drawing device; 21. a rail car; 22. a circumferential reinforcing steel bar positioning mechanism; 23. a longitudinal steel bar storage mechanism; 11. an arc-shaped track; 10. outer layer circumferential reinforcing steel bars; 20. inner layer circumferential reinforcing steel bars; 30. longitudinal reinforcing steel bars; 40. hooping; 50. inverted arch reinforcement; 221. a hook is clamped; 222. an outer layer steel bar guiding component; 223. an inner layer steel bar guiding assembly; 2211. a limiting groove; 2212. a taking and placing port; 224. a chain; 2231. a guide plate; 2232. an inner guide wheel; 2230. a guide groove; 2221. an outer guide wheel; 2222. a guide bar; 3. a support mechanism; 225. a radial spacing adjustment mechanism; 2251. a guide sleeve; 2252. a telescopic rod; 2253. a connecting rod; 2254. an adjusting plate; 2255. fastening a bolt; 231. a first bayonet tube; 232. a second bayonet tube; 2311. a slot; 2321. a through groove; 233. fixing the tube; 234. a partition plate; 235. inserting a rod; 236. a stop lever; 237. a bolt; 211. a wheel seat; 212. a rail wheel; 213. a cross beam; 4. a drive mechanism; 41. an electric motor; 42. a synchronizing shaft; 43. a drive chain; 44. a drive sprocket; 45. a tension pulley; 12. a carrier; 13 traveling wheels; 14. stair treads.

Detailed Description

The following describes in detail embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Referring to fig. 1 to 3, the present invention provides a tunnel reinforcement cage operation device, including a trolley 1 and a reinforcement drawing device 2 disposed on the trolley 1, wherein the reinforcement drawing device 2 includes a rail car 21, a circumferential reinforcement positioning mechanism 22 and a longitudinal reinforcement storage mechanism 23, two ends of the trolley 1 are respectively formed with an arc rail 11 adapted to a tunnel arch, the rail car 21 is reciprocally slidably disposed on the three arc rails 11, the circumferential reinforcement positioning mechanism 22 and the longitudinal reinforcement storage mechanism 23 are both mounted on the rail car 21, as shown in fig. 10 and 14, the circumferential reinforcement positioning mechanism 22 is configured to detachably connect one end of an outer circumferential reinforcement 10 and one end of an inner circumferential reinforcement 20 to draw a plurality of outer circumferential reinforcements 10 and inner circumferential reinforcements 20 to be arc-supported on the trolley 1 under the driving of the rail car 21, and perform equidistant positioning and equidistant positioning along a tunnel extending direction and an equal layer distance positioning along a radial direction of a cross section of the plurality of outer circumferential reinforcements 10 and inner circumferential reinforcements 20 drawn onto the trolley 1. The longitudinal reinforcing steel bar storage mechanism 23 is used for storing longitudinal reinforcing steel bars 30 along the extending direction of the tunnel so as to take out the longitudinal reinforcing steel bars 30 and bind and fix the plurality of outer layer circumferential reinforcing steel bars 10 and inner layer circumferential reinforcing steel bars 20 which are positioned at equal intervals and equal layer intervals. The constructor standing on the trolley 1 binds the two ends of the stirrup 40 with the outer layer circumferential steel bars 10 and the intersections of the inner layer circumferential steel bars 20 and the longitudinal steel bars 30 respectively to form the three-dimensional reinforcement cage.

According to the tunnel reinforcement cage operation equipment, the reinforcement drawing device 2 on the trolley 1 is matched with the longitudinal reinforcement storage mechanism 23 through the rail car 21, the annular reinforcement positioning mechanism 22 and the longitudinal reinforcement storage mechanism 2. Because the middle of the tunnel must flow out of the vehicle channel, the outer layer annular reinforcing steel bars 10 and the inner layer annular reinforcing steel bars 20 are arranged on one side of the tunnel pavement and are approximately positioned at the ditch position of the tunnel, so that the collision and the interference with the vehicle passing during operation can be avoided. Stop railcar 21 in invert reinforcing bar 50 department of tunnel one side, can dismantle the one end of connecting many outer hoop reinforcing bar 10 and inlayer hoop reinforcing bar 20 through hoop reinforcing bar positioning mechanism 22, under the drive of railcar 21, draw many outer hoop reinforcing bar 10 and inlayer hoop reinforcing bar 20 to platform truck 1 on, will draw many outer hoop reinforcing bar 10 and inlayer hoop reinforcing bar 20 on platform truck 1 through hoop reinforcing bar positioning mechanism 22 and carry out equidistant location and section radial direction along the tunnel extending direction and carry out the equidistant location, and with outer hoop reinforcing bar 10 and inlayer hoop reinforcing bar 20 respectively with the outer invert reinforcing bar 50 of corresponding one by one butt joint fixed, start railcar 21 and return to the initial position section by section, railcar 21 moves one section distance each and stops, take out many outer hoop reinforcing bar 10 and inlayer hoop reinforcing bar 20 after the equidistant and equidistant location from longitudinal reinforcement storage mechanism 23 and carry out the ligature fixed. The constructor standing on the trolley 1 binds both ends of the stirrup 40 with the outer layer circumferential steel bar 10 and the intersection of the inner layer circumferential steel bar 20 and the longitudinal steel bar 30 respectively to gradually form a three-dimensional reinforcement cage. Like this, cooperate with railcar 21 through hoop reinforcing bar positioning mechanism 22, can once only draw many outer hoop reinforcing bar 10 and inlayer hoop reinforcing bar 20 to platform truck 1 is last to can carry out accurate equidistant location to many outer hoop reinforcing bar 10 and inlayer hoop reinforcing bar 20 on the platform truck 1, improve reinforcing bar positioning accuracy and operating efficiency. The outer layer circumferential steel bar 10 and the inner layer circumferential steel bar 20 are bound and fixed by the longitudinal steel bar 30 and the stirrup 40, so that the three-dimensional reinforcement cage is formed. By using the tunnel reinforcement cage operation equipment, reinforcement binding operation can be easily completed by only four persons in the whole construction process, the number of constructors can be greatly reduced, and the operation quality and efficiency of the tunnel reinforcement cage can be effectively improved.

Referring to fig. 4 to 8, in the present embodiment, the circumferential reinforcing steel bar positioning mechanism 22 includes hooks 221, an outer reinforcing steel bar guiding assembly 222, and an inner reinforcing steel bar guiding assembly 223, wherein the hooks 221 are movably connected to the track car 21 and are uniformly arranged along the extending direction of the track car 21, so as to be clamped into one end of the circumferential reinforcing steel bar (the outer circumferential reinforcing steel bar 10 and the inner circumferential reinforcing steel bar 20). The number of the hooks 221 may be set to 60 to draw 60 circumferential reinforcing bars at one time. Preferably, the interval between two adjacent hooks 221 is substantially equal to the installation interval of the circumferential reinforcing steel bar. Preferably, as shown in fig. 9, the hook 221 is formed with a limit groove 2211 adapted to the end of the circumferential steel bar and a pick-and-place opening 2212 communicating with the limit groove 2211 and adapted to the outer diameter of the circumferential steel bar, and the circumferential steel bar can be placed into the limit groove 2211 through the pick-and-place opening 2212 so that the sleeve at the end of the circumferential steel bar is limited in the limit groove 2211 to move the circumferential steel bar. Preferably, the circumferential rebar positioning mechanism 22 further comprises a chain 224, and the hook 221 is movably connected to the rail car 21 through the chain 224. Thus, the hook 221 has a wider range of movement space, which facilitates the engagement of the sleeve around the end of the steel bar into the hook 221. Preferably, each chain 224 is correspondingly connected with two hooks 221 for respectively clamping the outer layer circumferential reinforcing steel bar 10 and the inner layer circumferential reinforcing steel bar 20, but the invention is not limited thereto, and one chain 224 may be correspondingly connected with one circumferential reinforcing steel bar. During the use, bear the weight of railcar 21 of hoop reinforcing bar positioning mechanism 22 and stop in one side of platform truck 1, correspond through a plurality of trips 221 and connect many hoop reinforcing bars, start railcar 21 and remove to the opposite side of platform truck 1 for many hoop reinforcing bars are the arc and support on platform truck 1.

Outer reinforcing bar direction subassembly 222 and inlayer reinforcing bar direction subassembly 223 are used for leading the location to outer hoop reinforcing bar 10 and inlayer hoop reinforcing bar 20 respectively to make outer hoop reinforcing bar 10 and inlayer hoop reinforcing bar 20 equidistant and arrange with one heart. In this embodiment, the inner-layer steel bar guide assembly 223 includes a guide plate 2231 and inner guide wheels 2232, the guide plate 2231 is installed on the rail car 21 and extends along the extension direction of the rail car 21, a plurality of guide grooves 2230 are spaced apart from each other on the guide plate 2231, one inner guide wheel 2232 is installed on each guide groove 2230 in a corresponding manner, and the inner guide wheels 2232 are installed on the guide plate 2231 in a corresponding manner, so that each inner-layer hoop steel bar 20 supported on the trolley 1 in an arc shape passes through the corresponding guide groove 2230 and is borne on the corresponding inner guide wheel 2232, thereby being butted against each inverted arch steel bar 50 of the inner layer through the sleeve.

In this embodiment, the outer-layer steel bar guiding assembly 222 includes an outer guiding wheel 2221 and a guiding rod 2222, the outer guiding wheel 2221 is erected above each inner guiding wheel 2232 on the guiding plate 2231, the guiding rod 2222 is erected on the guiding plate 2231 and is arranged outside the outer guiding wheel 2221 in parallel, and an outer-layer guiding space for the outer-layer circumferential steel bar 10 to pass through is formed between the outer guiding wheel 2221 and the guiding rod 2222. Each outer layer circumferential steel bar 10 supported on the trolley 1 in an arc shape passes through the outer layer guide space corresponding to the outer layer circumferential steel bar 10, so that the steel bar 10 is butted with each outer layer inverted arch steel bar 50 through the sleeve.

After the inner-layer circumferential steel bars 20 and the outer-layer circumferential steel bars 10 are respectively butted with the corresponding inverted arch steel bars 50, the rail car 21 is started to return to the initial position section by section, the rail car 21 stops after moving for a distance each time, the distance that the rail car 21 moves for each time is matched with the distance between two adjacent longitudinal steel bars 30, the inner-layer circumferential steel bars 20 and the outer-layer circumferential steel bars 10 are respectively preliminarily positioned under the guiding action of the inner guide wheels 2232 and the outer guide wheels 2221, then the longitudinal steel bars 30 are taken out from the longitudinal steel bar storage mechanism 23, the inner-layer circumferential steel bars 20 and the outer-layer circumferential steel bars 10 are respectively bound with the spacing of 250mm, and then the stirrups 40 and the intersections of the inner-layer circumferential steel bars 20 and the outer-layer circumferential steel bars 10 and the longitudinal steel bars 30 are bound and fixed respectively so as to accurately position the inner-layer circumferential steel bars 20 and the outer-layer circumferential steel bars 10. Then, the rail car 21 moves to the next installation position of the longitudinal steel bar 30 and stops, and the longitudinal steel bar 30 and the stirrup 40 are repeatedly bound, so that the binding and the fixing of the whole reinforcement cage are completed from one end of the inner-layer hoop steel bar 20 and the outer-layer hoop steel bar 10 to the other end of the inner-layer hoop steel bar and the outer-layer hoop steel bar 10 in sequence. At the in-process of whole ligature, after one section distance is good in the ligature, in order to guarantee that the overall stability of the steel reinforcement cage that has been good in the ligature does not collapse, tunnel steel reinforcement cage operation equipment is still including setting up a plurality of supporting mechanism 3 that are used for supporting the steel reinforcement cage that the ligature is good on platform truck 1. The supporting mechanism 3 comprises a supporting rod and a driving piece for driving the supporting rod to stretch. When the driving piece drives the supporting rods to retract, the arc supporting surface formed by the supporting rods is lower than the arc rail 11 so as to form an arc groove for accommodating the circumferential reinforcing steel bars. When the driving piece drives the supporting rod to extend out, the supporting rod is abutted against the bound reinforcement cage, and the bound reinforcement cage is prevented from collapsing. Preferably, the support rod can rotate around its own axis and set up to reduce the frictional resistance of hoop reinforcing bar and support rod when drawing the hoop reinforcing bar.

Referring to fig. 8, in the present embodiment, the circumferential steel bar positioning mechanism 22 further includes a radial distance adjusting mechanism 225 installed between the outer steel bar guiding assembly 222 and the inner steel bar guiding assembly 223 to adjust a distance between the outer circumferential steel bar 10 and the inner circumferential steel bar 20, so that the distance can be adjusted in advance according to the surrounding rock of the tunnel, and the universality and flexibility of tunnel construction are improved. In this embodiment, the radial distance adjusting mechanism 225 includes a guide sleeve 2251, an expansion link 2252, a connecting rod 2253, an adjusting plate 2254 and a fastening bolt 2255, wherein a plurality of guide sleeves 2251 are installed on the guide plate 2231 of the inner-layer steel bar guide assembly 223, an expansion link 2252 is installed in each guide sleeve 2251, and a connecting rod 2253 is installed at the top ends of two expansion links 2252 located between two adjacent guide grooves 2230 to drive the two expansion links 2252 to perform synchronous telescopic adjustment. Outer guide wheel 2221 is mounted between two adjacent connecting rods 2253, and guide bar 2222 is mounted on connecting rods 2253. A plurality of screw holes are formed in the position, corresponding to each connecting rod 2253, of the guide plate 2231, one end of the adjusting plate 2254 is connected to the connecting rod 2253, the other end of the adjusting plate is fixed to the guide plate 2231 by a fastening bolt 2255, and the fastening bolt 2255 is screwed into the screw hole of the guide plate 2231. The distance between the inner guide wheel 2232 and the outer guide wheel 2221 is adjusted by changing the screw connection position of the fastening bolt 2255 in the screw hole, and the distance between the outer circumferential steel bar 10 and the inner circumferential steel bar 20 is adjusted. It is understood that the radial distance adjusting mechanism 225 is not limited to the above-mentioned structure, and other structures may be adopted as long as the mechanism that can slide to adjust the position and fix the position at a given position is realized, and the details are not described herein.

It is to be understood that the outer-layer bar guide 222 and the inner-layer bar guide 223 are not limited to the above-mentioned structure, and for example, the outer-layer bar guide 222 and the inner-layer bar guide 223 may be formed with two guide wheels to form a guide space for the bars to pass through. In addition, the outer layer steel bar guiding assembly 222 and the inner layer steel bar guiding assembly 223 may also adopt other deformation structures as long as the guiding and positioning of the inner and outer layer steel bars can be realized, which is not listed here.

Referring to fig. 11 to 13, in the present embodiment, four sets of longitudinal reinforcing bar storing mechanisms 23 are arranged at intervals along the extending direction of the track car 21 to support four positions of the longitudinal reinforcing bars 30, respectively. The longitudinal steel bar storage mechanism 23 comprises a first inserting pipe 231, a second inserting pipe 232, a fixed pipe 233, partition plates 234, inserting rods 235 and blocking rods 236, the same ends of the first inserting pipe 231 and the second inserting pipe 232 are arranged at the two ends of the fixed pipe 233 in parallel, a plurality of inserting grooves 2311 are formed in the first inserting pipe 231, through grooves 2321 corresponding to each inserting groove 2311 one by one are formed in the second inserting pipe 232, the partition plates 234 are inserted into the corresponding inserting grooves 2311 along the through grooves 2321, and a storage space for placing the longitudinal steel bars 30 is formed between every two adjacent partition plates 234. Through holes are formed in two ends of the partition plate 234, and two insertion rods 235 are inserted into the through holes of each partition plate 234 from one ends, far away from the fixed pipe 233, of the first insertion pipe 231 and the second insertion pipe 232 respectively so as to serially fix each partition plate 234 to the first insertion pipe 231 and the second insertion pipe 232. The stop lever 236 is movably connected to an end of the second insertion tube 232, which is far away from the fixing tube 233, the stop lever 236 is provided with a detachable bolt 237 to fix the stop lever 236 to the second insertion tube 232, so that a space for taking out the longitudinal steel bar 30 is formed between the stop lever 236 and the first insertion tube 231, and the stop lever 236 can be movably adjusted in position for placing the longitudinal steel bar 30 after the bolt 237 is removed. The total number of the longitudinal steel bars 30 that the longitudinal steel bar storage mechanism 23 can store is greater than or equal to the number of the longitudinal steel bars 30 needed by the outer layer circumferential steel bars 10 and the inner layer circumferential steel bars 20, so as to convey the needed longitudinal steel bars 30 to the position at one time. For example, the longitudinal reinforcing bar storing mechanism 23 has a reinforcing bar storing amount of 200, and is divided into 20 groups of 10 by the partition plates 234. When the steel bar stacking device is used, the bolt 237 is firstly removed, the stop rod 236 is opened so as to place the longitudinal steel bars 30 into the two partition plates 234, the partition plates 234 are gradually inserted along with the stacking height of the longitudinal steel bars 30, and after the longitudinal steel bars 30 between all the partition plates 234 are placed, the partition plates 234 are respectively locked and fixed through the two insertion rods 235. Therefore, a plurality of longitudinal steel bars 30 can be stored in order, the longitudinal steel bars 30 can be conveyed to a designated position in batches for taking out and mounting, when the longitudinal steel bars 30 need to be taken out and mounted, the two insertion rods 235 are firstly drawn out, then the separation plate 234 close to the stop rod 236 is drawn out, so that the plurality of longitudinal steel bars 30 stored on one side of the separation plate 234 slide into a space formed by the stop rod 236 and the second insertion pipe 232, and then the longitudinal steel bars 30 are taken out and mounted. After the plurality of longitudinal bars 30 of the group are installed, the next partition plate 234 is pulled out, so that the plurality of longitudinal bars 30 stored at one side of the partition plate 234 slide into the space formed by the stop rod 236 and the second inserting pipe 232, and the installation of the longitudinal bars 30 and the pulling out of the partition plates 234 one by one are repeated. The longitudinal steel bars 30 are divided into multiple groups to be stored respectively, so that the problem that a large number of longitudinal steel bars 30 are stacked together in a mixed mode to cause difficulty in taking out can be avoided, the longitudinal steel bars 30 are more convenient to take and place, and the conveying efficiency and the mounting efficiency of the longitudinal steel bars 30 are greatly improved.

Referring to fig. 8, in the present embodiment, the rail car 21 includes a wheel seat 211, rail wheels 212 and a cross beam 213, a plurality of wheel seats 211 are installed on the cross beam 213 at intervals along the extending direction thereof, two rail wheels 212 are installed on each wheel seat 211, and each rail wheel 212 is rotatably disposed in a rail groove of the arc-shaped rail 11. The two adjacent wheel seats 211 form a group, so that four rail wheels 212 arranged in pairs in an opposite manner are respectively clamped in the rail grooves on two sides of the arc-shaped rail 11. The circumferential reinforcing steel bar positioning mechanism 22 and the longitudinal reinforcing steel bar storage mechanism 23 are both mounted on the cross beam 213. Therefore, the connection strength of the rail car 21 and the arc-shaped rail 11 is enhanced, and accidents caused by the fact that the rail car 21 is separated from the arc-shaped rail 11 are avoided.

Referring to fig. 1, in the present embodiment, trolley 1 includes a loading frame 12, road wheels 13 and stair treads 14, four road wheels 13 are mounted at the bottom of loading frame 12, arc-shaped rail 11 is fixed on loading frame 12, and stair treads 14 are mounted on loading frame 12 along arc-shaped rail 11 for an administrator to stand on stair treads 14 for construction.

Referring to fig. 1 to 3, the working equipment for a reinforcement cage in a tunnel according to the present invention further includes a driving mechanism 4 mounted on the trolley 1 for driving the rail car 21 to reciprocate. The driving mechanism 4 comprises motors 41, a synchronizing shaft 42 and a driving chain 43, the two motors 41 are relatively installed on the trolley 1 and are respectively located below the two arc-shaped rails 11, output shafts of the two motors 41 are connected through the synchronizing shaft 42, a driving sprocket 44 is installed on an output shaft of each motor 41 and the synchronizing shaft 42, a tension pulley 45 is installed on the trolley 1 corresponding to a corner position of the driving chain 43, a driving chain 43 is correspondingly installed on each driving sprocket 44, two ends of each driving chain 43 are respectively connected to two sides of the trolley 21, a chain groove for accommodating the driving chain 43 is arranged on the upper surface of each arc-shaped rail 11 to guide the driving chain 43 to slide, and the driving chain 43 is wound on the tension pulley 45 and the driving sprocket 44. The two motors 41 synchronously drive the respective driving sprockets 44 to rotate, and the driving sprockets 44 drive the rail car 21 to reciprocate along the arc-shaped rail 11 through the cooperation of the driving chain 43 and the tension pulley 45. The two motors 41 and the three transmission chains 43 are used for pulling the rail car 21 to move in a reciprocating manner, so that the rail car 21 can be ensured to run smoothly and stably, large traction force can be generated, a plurality of annular reinforcing steel bars can be pulled simultaneously, and the conveying efficiency of the annular reinforcing steel bars is improved. It will be appreciated that the drive mechanism 4 is not limited to the above-described structure, and may be implemented by a motor mounted on the rail car 21 for driving the rail wheels 212 to rotate.

Referring to fig. 14 to 16, the present invention further provides a method for constructing a reinforcement cage for a tunnel based on the above-mentioned apparatus for operating a reinforcement cage for a tunnel, comprising the steps of:

placing a plurality of annular reinforcing steel bars on one side of the tunnel pavement and close to the temporary ditch of the tunnel;

adjusting the position of the trolley 1 to enable the center of the trolley 1 to coincide with the center of the tunnel, wherein the connecting position of each circumferential reinforcing steel bar of the circumferential reinforcing steel bar positioning mechanism 22 corresponds to the position of each inverted arch reinforcing steel bar 50 of the road surface one by one, so that the circumferential reinforcing steel bars can be butted with the inverted arch reinforcing steel bars 50 on two sides of the road surface after being drawn onto the trolley 1; it should be noted that, in a tunnel working unit with a length of 6 meters, 60 circumferential steel bars are arranged on the inner and outer layers, and therefore, the circumferential steel bar positioning mechanism 22 is connected with 60 circumferential steel bars in parallel at one time;

the rail car 21 is parked at the position of an inverted arch steel bar 50 on one side of the road surface, one ends of a plurality of annular steel bars on one side of the tunnel road surface are respectively connected to the annular steel bar positioning mechanisms 22, and the longitudinal steel bars 30 are stored in the longitudinal steel bar storage mechanism 23 along the extending direction of the tunnel;

starting the rail car 21 to move to the position of an inverted arch steel bar 50 on the other side of the tunnel pavement, enabling a plurality of annular steel bars connected to the annular steel bar positioning mechanism 22 to be supported on the trolley 1 in an arc shape, correspondingly moving the longitudinal steel bars 30 in the longitudinal steel bar storage mechanism 23 to the position of the inverted arch steel bar 50 on the other side of the tunnel pavement, taking down the plurality of annular steel bars on the annular steel bar positioning mechanism 22, respectively penetrating one ends of the plurality of annular steel bars through the annular steel bar positioning mechanism 22 to divide the plurality of annular steel bars into an inner layer and an outer layer, and performing equidistant positioning along the tunnel extension direction and performing equidistant positioning along the section radial direction; one end of the inner and outer layer circumferential steel bars passing through the circumferential steel bar positioning mechanism 22 is respectively butted and fixed with the corresponding inner and outer layer inverted arch steel bars 50 one by one, the rail car 21 is started to return to the initial position section by section, the rail car 21 stops when moving for a certain distance, the longitudinal steel bars 30 are taken out from the longitudinal steel bar storage mechanism 23, binding and fixing are carried out on a plurality of inner and outer layer circumferential steel bars which are positioned at equal intervals, a constructor standing on the trolley 1 binds the two ends of the stirrups 40 with the intersections of the inner and outer layer circumferential steel bars and the longitudinal steel bars 30 respectively to gradually form a three-dimensional steel bar cage, and the longitudinal steel bars 30 and the stirrups 40 are used for binding a section of the inner and outer layer circumferential steel bars when moving for a certain distance until the rail car 21 returns to the initial position, binding of the whole three-dimensional steel bar cage is completed, namely the three-dimensional steel bar cage of a tunnel working unit with the length of 6 meters is completed.

And starting the trolley 1 to move to a position corresponding to the next tunnel working unit, and repeatedly executing the corresponding steps to finish the three-dimensional reinforcement cage binding of the plurality of tunnel working units in sequence.

It can be understood that, as an alternative mode, the tunnel reinforcement cage construction method can also complete the binding of the outer-layer circumferential reinforcement and the longitudinal reinforcement 30, and then complete the binding of the inner-layer circumferential reinforcement and the longitudinal reinforcement 30, and the binding of the stirrup 40 and the inner-layer and outer-layer circumferential reinforcements.

Namely: connecting 30 circumferential steel bars to a circumferential steel bar positioning mechanism 22, enabling the 30 circumferential steel bars to be supported on a trolley 1 in an arc shape by pulling a rail car 21, respectively penetrating one end of each of the 30 circumferential steel bars through the circumferential steel bar positioning mechanism 22 to position the 30 circumferential steel bars on an outer layer firstly, performing equidistant positioning along the extending direction of a tunnel and performing equidistant positioning along the radial direction of a section, abutting and fixing one end of each of the outer circumferential steel bars penetrating through the circumferential steel bar positioning mechanism 22 with the corresponding outer inverted arch steel bar 50 one by one, starting the rail car 21 to return to an initial position section by section, stopping the rail car 21 after moving a certain distance, taking out the 30 equally spaced and positioned outer circumferential steel bars from a longitudinal steel bar storage mechanism 23 for binding and fixing, binding a section of outer circumferential steel bar when the rail car 21 moves a certain distance until the rail car 21 returns to the initial position, completing the binding of the outer circumferential steel bars and the longitudinal steel bars 30, and completing the binding of an outer steel bar mesh of a 6-meter tunnel working unit;

then, 30 circumferential rebars are connected to the circumferential rebar positioning mechanism 22, the 30 circumferential rebars are supported on the trolley 1 in an arc shape by pulling the trolley 21, one ends of the 30 circumferential rebars respectively penetrate through the circumferential rebar positioning mechanism 22 so that the 30 circumferential rebars are positioned on the inner layer and arranged at equal intervals along the extending direction of the tunnel, one ends of the inner layer circumferential rebars penetrating through the circumferential rebar positioning mechanism 22 are respectively butted and fixed with the corresponding inner layer inverted arch rebars 50 one by one, the trolley 21 is started to return to the initial position section by section, the trolley 21 stops when moving for a certain distance, the 30 inner layer circumferential rebars after being positioned at equal intervals are taken out from the longitudinal rebar storage mechanism 23 to be bound and fixed, two ends of the stirrups 40 are respectively bound with the intersections of the inner layer circumferential rebars and the outer layer circumferential rebars 30 to gradually form a three-dimensional rebar cage, and the trolley 21 binds one section of the inner layer circumferential rebars and one section of the outer layer circumferential rebars with the stirrups 40 when moving for a certain distance until the trolley 21 returns to the initial position, and the whole three-dimensional rebar cage is bound, namely, and binding of the 6-dimensional rebar work unit of the three-dimensional rebar cage is completed.

And starting the trolley 1 to move to a position corresponding to the next tunnel working unit, and repeatedly executing the corresponding steps to finish the three-dimensional reinforcement cage binding of the plurality of tunnel working units in sequence.

By using the construction method of the tunnel reinforcement cage, a plurality of circumferential reinforcements can be drawn to the trolley 1 at one time, the plurality of circumferential reinforcements on the trolley 1 can be accurately positioned at equal intervals, and the reinforcement positioning precision and the operation efficiency are improved. The inner and outer circumferential steel bars are bound and fixed by the longitudinal steel bars 30 and the stirrups 40, so that the three-dimensional reinforcement cage is formed. The whole construction process can easily complete reinforcement binding operation by only four people, the quantity of constructors can be greatly reduced, and the operation quality and efficiency of the tunnel reinforcement cage are effectively improved.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying importance; the words "bottom" and "top", "inner" and "outer" refer to directions toward and away from, respectively, a particular component geometry.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a hoop reinforcing bar positioning mechanism for tunnel steel reinforcement cage operation sets up on railcar (21), a serial communication port, hoop reinforcing bar positioning mechanism includes trip (221), outer reinforcing bar direction subassembly (222) and inlayer reinforcing bar direction subassembly (223), a plurality of trip (221) swing joint are on railcar (21) and evenly arrange along railcar (21) extending direction, the one end of hoop reinforcing bar is blocked in the confession, install on railcar (21) outer reinforcing bar direction subassembly (222) and inlayer reinforcing bar direction subassembly (223), be used for respectively carrying out the guiding orientation to outer hoop reinforcing bar (10) and inlayer hoop reinforcing bar (20), so that outer hoop reinforcing bar (10) and inlayer hoop reinforcing bar (20) equidistant, the equidistance just arranges with one heart.

2. The circumferential reinforcement positioning mechanism for tunnel reinforcement cage operation according to claim 1, wherein the hook (221) is formed with a limiting groove (2211) adapted to an end of the circumferential reinforcement and a pick-and-place opening (2212) communicating with the limiting groove (2211) and adapted to an outer diameter of the circumferential reinforcement.

3. The circumferential reinforcement positioning mechanism for the operation of the reinforcement cage for the tunnel according to claim 1, further comprising a chain (224), wherein the hook (221) is movably connected to the rail car (21) through the chain (224).

4. The circumferential reinforcement positioning mechanism for the operation of the reinforcement cage of the tunnel according to claim 3, wherein each chain (224) is correspondingly connected with two hooks (221) for being respectively clamped into the circumferential reinforcement (10) at the outer layer and the circumferential reinforcement (20) at the inner layer.

5. The circumferential rebar positioning mechanism for tunnel rebar cage work according to claim 1, wherein the inner-layer rebar guide assembly (223) comprises a guide plate (2231) and inner guide wheels (2232), the guide plate (2231) is mounted on the rail car (21) and extends along the extension direction of the rail car (21), a plurality of guide grooves (2230) are formed in the guide plate (2231) at intervals, one inner guide wheel (2232) is correspondingly and rotatably mounted in each guide groove (2230), and the inner guide wheels (2232) are rotatably mounted on the guide plate (2231).

6. The circumferential steel bar positioning mechanism for the reinforcement cage of the tunnel according to claim 5, wherein the outer layer steel bar guiding assembly (222) comprises outer guide wheels (2221) and guide rods (2222), the outer guide wheels (2221) are erected on the guide plates (2231) and above each inner guide wheel (2232), the guide rods (2222) are erected on the guide plates (2231) and arranged in parallel on the outer sides of the outer guide wheels (2221), and an outer layer guiding space for the outer layer circumferential steel bars (10) to pass through is formed between the outer guide wheels (2221) and the guide rods (2222).

7. The circumferential reinforcement positioning mechanism for the reinforcement cage working in the tunnel according to claim 6, further comprising a radial distance adjusting mechanism (225) installed between the outer layer reinforcement guide assembly (222) and the inner layer reinforcement guide assembly (223) to adjust a distance between the outer layer circumferential reinforcement (10) and the inner layer circumferential reinforcement (20).

8. The circumferential steel bar positioning mechanism for the operation of the tunnel steel bar cage according to the claim 7, wherein the radial distance adjusting mechanism (225) comprises guide sleeves (2251), telescopic rods (2252) and connecting rods (2253), a plurality of guide sleeves (2251) are installed on the inner steel bar guide assembly (223), a telescopic rod (2252) is installed in each guide sleeve (2251) in a sliding manner, a connecting rod (2253) is installed at the top end of each telescopic rod (2252) between two adjacent guide grooves (2230), an outer guide wheel (2221) is installed between two adjacent connecting rods (2253), and a guide rod (2222) is erected on the connecting rod (2253).

9. The circumferential steel bar positioning mechanism for the operation of the tunnel steel bar cage according to the claim 8, wherein the radial distance adjusting mechanism (225) comprises an adjusting plate (2254) and fastening bolts (2255), a plurality of screw holes are formed in the guide plate (2231) at positions corresponding to each connecting rod (2253), one end of the adjusting plate (2254) is connected with the connecting rod (2253), the other end of the adjusting plate is fixed on the guide plate (2231) through the fastening bolts (2255), and the fastening bolts (2255) are screwed in the screw holes of the guide plate (2231).

10. The hoop reinforcement positioning mechanism for tunnel reinforcement cage operation according to claim 1, characterized in that one ends of a plurality of hoop reinforcements on one side of a tunnel pavement are respectively connected to a hook (221), a rail car (21) is started to move to an inverted arch reinforcement (50) on the other side of the tunnel pavement, so that the plurality of hoop reinforcements connected to the hook (221) are supported on a trolley (1) in an arc shape, the hoop reinforcements are taken down, one end of each hoop reinforcement penetrates through an outer layer reinforcement guide assembly (222) and an inner layer reinforcement guide assembly (223) respectively, and the plurality of hoop reinforcements are divided into an inner layer and an outer layer and are positioned at equal intervals along the extending direction of the tunnel and positioned at equal intervals along the radial direction of the section.

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