CN112124939B - Conveying track device and conveying method for steel bars penetrating through silo - Google Patents
Conveying track device and conveying method for steel bars penetrating through silo Download PDFInfo
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- CN112124939B CN112124939B CN202011038400.3A CN202011038400A CN112124939B CN 112124939 B CN112124939 B CN 112124939B CN 202011038400 A CN202011038400 A CN 202011038400A CN 112124939 B CN112124939 B CN 112124939B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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Abstract
The invention discloses a conveying track device for reinforcing steel bars penetrating through a silo and a conveying method. The transmission method comprises the following steps: the method comprises the steps of conveying track closing, sliding baffle height adjusting, m circumferential steel bar inserting, free falling of one or two circumferential steel bars and circumferential steel bar positioning and binding. The invention guides the circumferential reinforcing steel bars to penetrate to the position near the position needing to be bound along the conveying track during closing, and automatically leads the reinforcing steel bars to fall off during opening, thereby being suitable for penetrating the circumferential reinforcing steel bars in silo slip form construction. In addition, the steel bar sliding formwork is matched with a curved arc conveyor, so that automatic steel bar conveying is realized, the working strength and the working load of site construction workers are greatly reduced, the construction difficulty is reduced, the steel bar penetrating efficiency is improved, the sliding formwork period is shortened, the construction period is shortened, and the construction cost is reduced.
Description
Technical Field
The invention relates to a silo slip form construction auxiliary device, in particular to a conveying track device for reinforcing steel bars penetrating through a silo and a conveying method.
Background
The concrete silo is widely applied to industrial production, can be used for uniformly mixing various solid materials and also can be used for storing the production materials to be used. Early designs of concrete silos mostly adopt non-prestressed reinforced concrete systems, and the construction of such concrete silos usually adopts a slip form technology.
The silo slip form is an important link in the building construction process and has the advantages of high construction efficiency, short construction period, low construction cost and the like, but the silo slip form belongs to continuous construction and has large usage amount of circumferential reinforcing steel bars.
At present, the annular reinforcing steel bars are conveyed mainly manually, so that the labor intensity of workers is high, the conveying efficiency of the annular reinforcing steel bars is low, and the construction period of the slip form is long.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a conveying track device and a conveying method for silo steel bars, which guide the circumferential steel bars to penetrate to the position near the position to be bound along the conveying track when the conveying track device and the conveying method are closed, and automatically drop the steel bars when the conveying track device and the conveying method are opened, so that the conveying track device and the conveying method are suitable for the automatic penetration of the circumferential steel bars in the silo slip form construction, save labor and improve the slip form efficiency.
In order to solve the technical problems, the invention adopts the technical scheme that:
a conveying track device for reinforcing steel bars penetrating through a silo comprises an arc-shaped upper rail, a sliding lower rail, a lower rail radial sliding driving device and an arc-shaped conveyor.
The silo slip form comprises a plurality of open-type frames which are uniformly distributed along the circumferential direction of the slip form, and each open-type frame comprises an inner side upright post, an outer side upright post and a cross beam which is used for connecting the inner side upright post and the outer side upright post.
The arc upper rail is arranged below the cross beam of the open-type frame along the circumferential direction of the sliding form, and the bottom of the arc upper rail is provided with an arc circumferential through groove.
The lower sliding rail is positioned below the upper arc rail, and an annular steel bar inserting groove can be formed between the lower sliding rail and the upper sliding rail.
The lower sliding rail comprises a plurality of sliding baffles which are arranged in an arc shape along the circumferential direction, and a circumferential spacing space is arranged between every two adjacent sliding baffles.
Each sliding baffle is connected with a lower rail radial sliding driving device arranged on the open-type frame, and the sliding baffle can slide along the radial direction of the sliding form under the action of the corresponding lower rail radial sliding driving device.
The curved arc conveyor is arranged at the circumferential spacing space and used for the circumferential reinforcement to run round and automatically conveying the circumferential reinforcement after the circumferential reinforcement runs round to the circumferential reinforcement through slot.
The lower rail radial sliding driving device comprises a horizontal fixing plate, a driving unit, a sliding block and a horizontal connecting plate. The horizontal fixing plate is installed on the lower side of the cross beam through the vertical fixing plate, and a sliding guide rail along the radial direction of the sliding form is arranged on the top surface of the horizontal fixing plate. The sliding block is arranged on the sliding guide rail in a sliding mode and connected with the driving unit located at the tail end of the sliding guide rail. The bottom surface of the horizontal connecting plate is arranged at the top of the sliding block, and the top surface of the horizontal connecting plate is provided with a sliding baffle. An operating handle is arranged on the sliding baffle.
The section of the arc-shaped circumferential through groove is arc-shaped or U-shaped.
The height of each sliding baffle can be adjusted, so that the automatic conveying device is suitable for the automatic conveying of annular reinforcing steel bars with different diameters. Along the transmission direction of the annular reinforcing steel bars, the height of each sliding baffle is lower in the front and higher in the rear.
Each sliding baffle is a straight-line-like horizontal baffle, and the length of the horizontal baffle is greater than the distance between the two letter opening frames but less than the distance between the three letter opening frames. The horizontal baffle plate spans the two open frames.
The vertical column is arranged on the slotted frame and used for limiting radial movement of the annular reinforcing steel bars in the annular reinforcing steel bar penetrating grooves.
The annular reinforcing steel bar inserting groove is used for inserting the annular reinforcing steel bar into the annular reinforcing steel bar inserting groove.
A method for conveying reinforcing bars through a silo comprises the following steps.
And 7, repeating the step 5 and the step 6 until the nth circumferential steel bars completely enter the arc bending conveyor, and pushing forward by the arc bending conveyor for the distance of c each time, wherein one or two circumferential steel bars at the foremost end freely fall.
In step 3, assuming that the circumference of the circle where the conveying track is located is T, the ratio L/T =1, 1/2, 1/3, 1/4, … … of the sliding mode arc length L to the circumference T where the conveying track is located is set. And (4) automatically conveying the required annular reinforcing steel bars by adopting a curved arc conveyor for each set sliding mode arc length L.
And 3, in the step 8, a sleeve cap is arranged between two annular reinforcing steel bars in the annular reinforcing steel bar inserting groove, and the sleeve cap is coaxially sleeved at the head end of the rear annular reinforcing steel bar. The annular steel bar inserting groove can only accommodate one sleeve cap in the radial direction.
The invention has the following beneficial effects: the invention guides the circumferential reinforcing steel bars to penetrate to the position near the position needing to be bound along the conveying track when being closed, and automatically leads the reinforcing steel bars to fall off when being opened, thereby being suitable for penetrating the circumferential reinforcing steel bars in silo slip form construction. In addition, the steel bar conveying device is matched with a curved arc conveyor, so that automatic steel bar conveying is realized, the working strength and the workload of site construction workers are greatly reduced, the steel bar penetrating efficiency is improved, the sliding formwork period is shortened, the construction period is shortened, and the construction cost is reduced.
Drawings
Fig. 1 is a schematic view showing an overall layout position of a conveying rail device for reinforcing bars to be inserted into a silo according to the present invention.
FIG. 2 is a schematic view showing a partial layout position of the arc upper rail in the present invention.
FIG. 3 is a schematic view showing a partial layout position of the slip lower rail according to the present invention.
Fig. 4 is a view showing a construction of a transfer rail apparatus for reinforcing bars to be inserted into a silo according to the present invention.
Fig. 5 shows a schematic view of the conveying track of the invention when the conveying track is suitable for reinforcing steel bars to be conveyed with the diameter of 16-20 mm.
Fig. 6 shows a schematic view of the transfer rail of the present invention adapted for use with 18-25mm diameter bars to be transferred.
Fig. 7 shows a first combination of an arcuate upper rail and a glide lower rail of the present invention.
Fig. 8 shows a second combination of the arcuate upper rail and the glide lower rail of the present invention.
Among them are:
1. an arc-shaped cover plate; 101. a cover plate fixing plate; 2. a horizontal baffle; 201. a horizontal connecting plate; 3. a letter opening frame; 7. a slider; 8. a drive unit; 9. a sliding guide rail; 10. a horizontal fixing plate; 11. a vertical fixing plate; 12. an operating handle; 13. a circumferentially spaced space.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
In the description of the present invention, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
As shown in fig. 1 to 4, a conveying rail device for reinforcing steel bars passing through a silo comprises an arc-shaped upper rail, a sliding lower rail, a lower rail radial sliding driving device, a vertical upright post 4, a position detection sensor 5 and a curved arc conveyor 6.
The silo slip form comprises a plurality of open-type frames 3 which are uniformly distributed along the circumferential direction of the slip form, and each open-type frame comprises an inner side upright post, an outer side upright post and a cross beam which is used for connecting the inner side upright post and the outer side upright post.
The arc-shaped upper rail is arranged below a cross beam of the open-type frame along the circumferential direction of the sliding form, and is specifically arranged at the position of the steel bar according to the circumferential direction to be transmitted. When the device is used for conveying the circumferential reinforcing steel bars outside the silo, the arc-shaped upper rail is arranged at the bottom of the cross beam positioned outside the silo, and the radius of the arc-shaped upper rail is preferably 150mm larger than the outer diameter of the silo; when the device is used for conveying the circumferential reinforcing steel bars on the inner side of the silo, the arc-shaped upper rail is arranged at the bottom of the cross beam on the inner side of the silo, and the radius of the arc-shaped upper rail is preferably 150mm smaller than the inner diameter of the silo. Alternatively, the curved upper track may be mounted both inside and outside the silo. In the present embodiment, only the arc-shaped upper rail is disposed outside the silo as an example.
The arc-shaped upper rail comprises arc-shaped cover plates 1 and movable cover plates which are staggered along the circumferential direction.
The lengths of the arc-shaped cover plate 1 and the movable cover plate are preferably determined according to the length of a circumferential steel bar to be conveyed. In this embodiment, preferably, the length of one ring to be conveyed to the reinforcing steel bar is 9m, and the distance between two adjacent frames is preferably c =1.5 m; the movable cover plate is detachably erected at the bottoms of the cross beams of the two H-shaped frames, and the length of the movable cover plate is preferably 1.5 m; the arc-shaped cover plates 1 positioned at both sides of the movable cover plate are preferably fixed on the open-type frame 3 by welding the cover plate fixing plates 101 thereon. The length of each arc-shaped cover plate 1 is preferably 7.5m, and the arc-shaped cover plates are erected on 6 open frames. In fig. 1 to 4, it is shown that the arc-shaped cover plate is arranged under the cross beam between the vertical reinforcing bars and the upright posts outside the open frame 3.
The bottom of the arc upper rail is provided with an arc circumferential through groove, the arc circumferential through groove is preferably an arc groove or a U-shaped groove and the like, and the arc upper rail is a large arc plate or a large U-shaped plate and the like.
Firstly, when the head end or the tail end of the annular reinforcing steel bar to be conveyed is not sleeved with the sleeve cap, the size of the arc-shaped circumferential through groove is preferably set as follows.
When the arc circumferential through groove is an arc groove, the diameter of the arc groove is larger than the diameter of the largest reinforcing steel bar to be transmitted by more than 3mm, and is at least 4mm smaller than 2 times of the diameter of the smallest reinforcing steel bar to be transmitted, and the range of the applicable reinforcing steel bars is determined according to the rule after the intermediate value is generally selected as the inner diameter.
When the arc circumference logical groove is U type groove, the height and the width in U type groove preferably more than 3mm than the diameter of the biggest reinforcing bar of awaiting transmission, and the while is 4mm less than 2 times of minimum reinforcing bar diameter of awaiting transmission at least. Similarly, after the intermediate value is selected as the inner diameter, the range of the applicable reinforcing steel bars is determined according to the rule.
The lower sliding rail is positioned below the upper arc rail, and an annular steel bar inserting groove can be formed between the lower sliding rail and the upper sliding rail.
The longitudinal section of the sliding lower rail is preferably a small arc, a small U-shaped or a horizontal flat plate. Thus, the arcuate upper rail and the glide lower rail can be formed in various combinations, two preferred combinations of which are described below.
And secondly, when the head end or the tail end of the annular reinforcing steel bar to be conveyed is coaxially sleeved with the sleeve cap, the size of the arc-shaped circumferential through groove can not be limited by the diameter of the annular reinforcing steel bar to be conveyed.
A first combination of: big arc-shaped upper rail and small arc-shaped lower rail capable of sliding
As shown in fig. 4 and 7, the arc-shaped circumferential through groove of the arc-shaped upper rail is a large arc with a downward opening, and the sliding lower rail is a small arc with a downward opening.
The large arc of the arc-shaped upper rail and the small arc of the sliding lower rail can be obtained by cutting a bent circular tube with the radius about 150mm larger than that of the silo, so that the material is not wasted, and the cost is saved. The processing method is simple, and only the seamless stainless steel tube needs to be bent and then split. When splitting, the arc length of the section of the arc upper rail is larger than that of the section of the sliding lower rail.
The second combination, U-shaped arc upper rail and horizontal flat plate sliding lower rail
As shown in fig. 8, the arc circumferential through groove of the arc upper rail is a U-shaped groove with a downward opening, and the sliding lower rail is a horizontal flat plate. If the U-shaped groove is cut open, the lower rail only needs one flat plate. If the shape is a little curved or U-shaped, the bending rigidity can be improved.
Alternatively, the combination of the arc-shaped upper rail and the sliding lower rail can be in the form of a rectangular pipe, a square pipe, a rhombic pipe and the like.
The sliding lower rail preferably comprises a plurality of sliding baffles which are arranged in an arc shape along the circumferential direction, and circumferential space is reserved between every two adjacent sliding baffles.
Further, as shown in fig. 3, each sliding baffle is preferably a straight-line-like horizontal baffle, and the length of the horizontal baffle is greater than the distance between two frames, but less than the distance between three frames. The horizontal baffle plate spans the two open frames.
Above-mentioned horizontal baffle 2 is the little arc that the pipe cutting that the radius is unanimous with arc apron 1 formed, and 2 openings of horizontal baffle are down to weld a horizontal connecting plate 201 in the below. The arc-shaped cover plate 1 and the horizontal baffle plate 2 are preferably made of stainless steel materials, the surfaces are smooth, and the friction resistance is extremely low.
According to a control scheme, the length of each horizontal baffle is preferably 2.0-2.5 m, the horizontal baffles are erected on two letter opening frames, the length of the two ends of each horizontal baffle extending into the circumferential spacing space is preferably 0-500mm, so that the length of the circumferential spacing space is 0.5-1.5 m, in fig. 3, the circumferential spacing space is normally 0.5m, and when a curved arc conveyor needs to be installed, the circumferential spacing space is increased to about 1.5 m. The curved arc conveyor is used for the circular running of the circumferential reinforcing steel bars and automatically conveying the circular running circumferential reinforcing steel bars into the circumferential reinforcing steel bar inserting grooves.
Along the transmission direction of the circumferential reinforcing steel bar, the tail end of the previous horizontal baffle is slightly higher than the initial end of the next horizontal baffle during installation. That is, the height of each sliding baffle is front low and back high, the initial end of each sliding baffle is at the same height, and the tail end is at the same height. The benefits of this arrangement are: the lower setting before, the interlude groove of formation is big, and the hoop reinforcing bar of being convenient for gets into. The back is high, and the annular reinforcing steel bar is convenient for resume the normal position, and the annular reinforcing steel bar direction is properly adjusted, aligns and wears the slot. In addition, prevent that the hoop reinforcing bar from pushing up to the border of interlude groove downwards because deformation such as gravity when passing through the circumference interval space between two baffles that slide.
Each sliding baffle is connected with a lower rail radial sliding driving device arranged on the open-type frame, and the sliding baffle can slide along the radial direction of the sliding form under the action of the corresponding lower rail radial sliding driving device.
As shown in fig. 4, the lower rail radial sliding driving device includes a horizontal fixing plate 10, a driving unit, a slider 7, and a horizontal connecting plate 201. The horizontal fixing plate is installed at the bottom of the cross beam through a vertical fixing plate 11, and a sliding guide rail 9 along the radial direction of the sliding form is arranged on the top surface of the horizontal fixing plate.
The slide block is arranged on the sliding guide rail in a sliding mode, the slide block is connected with a driving unit arranged at the tail end of the sliding guide rail, and the driving unit 8 is fixedly arranged on the character opening frame 3. The drive unit 8 may be pneumatic, hydraulic or electric. The pneumatic driving unit comprises a cylinder, an air compressor and pneumatic pipeline accessories such as an electromagnetic limit, a filter, an electromagnetic valve and the like. The electric driving unit comprises a linear screw rod or a linear motor and the like.
The bottom surface of the horizontal connecting plate is arranged at the top of the sliding block, and the top surface of the horizontal connecting plate is preferably welded with a horizontal baffle. The horizontal connecting plate 201 welded on the horizontal baffle 2 is connected with the sliding block 7 through a preferable screw, the adjustable cushion block is added in the middle to control the height, or the height is adjusted through the oval hole, the space between the arc-shaped cover plate 1 and the horizontal baffle 2 is adjusted to adapt to reinforcing steel bars with different diameters, and the adjusting times are reduced as much as possible.
Above-mentioned vertical bumping post 4 is preferred to be set up on the frame of opening a word outside transfer orbit begins end and horizontal baffle clearance department for prevent that the hoop reinforcing bar from along with the radial slip of horizontal baffle 2, ensure the hoop reinforcing bar free fall.
In order to control the circumferential steel bars to accurately reach the designated positions, a plurality of position detection sensors 5 are installed, namely the position detection sensors are used for detecting whether the circumferential steel bars in the circumferential steel bar inserting grooves penetrate to the set target positions.
Further, all be provided with operating handle 12 on every baffle that slides, when the electrical apparatus trouble, can artifical pulling the baffle that slides, the switching of manual operation control horizontal baffle.
A method for conveying reinforcing bars through a silo comprises the following steps.
The curved arc conveyer is located the circumference interval space of automatic conveying initiating terminal, and curved arc conveyer forehead reinforcing bar export aims at the terminal surface space center of arc apron, is responsible for running the hoop reinforcing bar circle and sending into the transfer orbit, promotes the hoop reinforcing bar and advances.
The curved arc conveyor is used for automatically conveying the annular reinforcing steel bars required by setting the arc length L of the slip form for binding, and if the circumference of the circle where the conveying track is located is T, the ratio L/T =1, 1/2, 1/3, 1/4 and … … of the arc length L of the slip form to the circumference T where the conveying track is located is set. And (4) automatically conveying the required annular reinforcing steel bars by adopting a curved arc conveyor for each set sliding mode arc length L.
When L = T, a curved arc conveyor is adopted to automatically convey the annular reinforcing steel bars needed by the whole circle of silo. According to the construction efficiency and the size of the silo, a plurality of sets of the conveying track device can be repeatedly arranged in sections, so that a plurality of conveyors can be used for working simultaneously. That is, the whole silo is repeatedly provided with a plurality of groups of conveying track devices according to the specifications to form a complete circular conveying track.
And when L/T =1/2, 1/3, 1/4 and … …, each set of conveying track devices is arc-shaped.
Firstly, when the head end or the tail end of the annular reinforcing steel bar to be conveyed is not sleeved with the sleeve cap, the height of the sliding baffle is adjusted as follows.
The invention preferably adapts to reinforcing steel bars with different diameters by adjusting the distance a between the upper edge of the horizontal baffle 2 and the center of the arc-shaped cover plate 1, and the method comprises the following steps:
if the diameter of the conventional circumferential steel bar is 16-25mm, a stainless steel pipe with the inner diameter of 28mm can be selected as the track, namely, the arc circumferential through groove of the arc upper track is selected as an arc groove with the diameter of 28 mm.
As shown in fig. 6, when the circumferential reinforcement with the diameter of 25mm is conveyed, the upper edge of the horizontal baffle 2 is adjusted to the position with the vertical distance a =14mm downwards from the center, and the minimum gap distance between the horizontal baffle 2 and the cover plate 1 is 28mm, so that the circumferential reinforcement with the diameter of 18-25mm can be accommodated.
As shown in fig. 5, when a steel bar with a diameter of 16mm is to be replaced, the horizontal baffle 2 can be moved upwards by about 4mm, a =10mm, and at this time, the gap vertical spacing is 24mm, the horizontal spacing is 28mm, and only one 16mm-20mm circumferential steel bar can be penetrated. In the present invention, units marked with respect to dimensions in the drawings are mm.
The invention adapts to the continuous transmission of reinforcing steel bars with different diameters by adjusting the position of the horizontal baffle 2, and can simultaneously install a plurality of arc-shaped cover plates corresponding to a silo with extremely large height and larger diameter change of the reinforcing steel bars.
And secondly, when the head end or the tail end of the annular steel bar to be conveyed is coaxially sleeved with the sleeve cap, the height adjustment of the sliding baffle plate is only related to the outer diameter of the sleeve cap and is not limited by the diameter of the annular steel bar to be conveyed. The advantages of the cap arrangement are that: by adopting the sleeve cap, the penetrating groove space can be far larger than the diameter of the steel bar to be conveyed, and only the outer diameter side wall surface of the sleeve cap is in sliding contact with the arc circumferential through groove during conveying, so that the friction force can be reduced, and the pushing is facilitated. The limitation is that the curved conveyor must be reversed to allow room for the cap to open.
And 3, inserting the m circumferential reinforcing steel bars.
When binding joints with the set length of b are arranged between every two adjacent annular reinforcing steel bars, the total number of the annular reinforcing steel bars needed by the binding of the sliding mode arc length L is set to be n. In the present embodiment, b =1m is preferable.
When two adjacent circumferential reinforcing steel bars are only in end-to-end contact without overlapping, the total number of the circumferential reinforcing steel bars corresponding to the arc length L of the slip form is set to be m, and m is less than n.
Conveying the first ring to the steel bar: starting the curved arc conveyor 6, sending the one end of the first hoop reinforcing steel bar into between the guide wheel and the compression roller of the curved arc conveyor and slightly pushing forward, the first hoop reinforcing steel bar advances under the drive of the curved arc conveyor, the first hoop reinforcing steel bar enters into the hoop reinforcing steel bar penetrating slot formed in the middle of the arc cover plate 1 and the horizontal baffle plate 2, and the hoop reinforcing steel bar penetrating slot advances under the limitation of the horizontal baffle plate 2 and the arc cover plate 1 until the first hoop reinforcing steel bar penetrates the slot to leave the curved arc conveyor.
When the sleeve cap is not needed, the conveying method of the first annular reinforcing steel bar is directly repeated, and the m annular reinforcing steel bars sequentially pass through the arc bending conveyor to run and be conveyed into the annular reinforcing steel bar inserting grooves in the step 2.
When the sleeve cap is needed, the sleeve cap is coaxially sleeved at the tail end of the first annular reinforcing steel bar or the head end of the second annular reinforcing steel bar, and then the arc bending conveyor is started and rotates for a distance to enable the sleeve cap to be opened. And then, repeating the conveying method and the cap sleeving action of the first annular reinforcing steel bar, and conveying the m annular reinforcing steel bars to the annular reinforcing steel bar inserting grooves in the step 2 after the m annular reinforcing steel bars sequentially pass through the arc bending conveyor to run circles.
Under the automatic conveying of curved arc conveyer, the preceding hoop reinforcing bar of mode promotion (because the hoop reinforcing bar interlude groove is not enough to send into two hoop reinforcing bars simultaneously side by side or the two hoop reinforcing bars that the cover was equipped with the cap) is supported tightly with the head and the tail to the back hoop reinforcing bar in the m root ring reinforcing bar, moves forward along the hoop reinforcing bar interlude groove and alternates until the first hoop reinforcing bar that is located foremost reachs the settlement target location.
Because the joint of the binding steel bars is provided with the overlapping joint, the total length required by a circle of steel bars is larger than the circumference of the silo, when the first annular steel bar penetrates out of the annular steel bar inserting groove, because the arc cover plate and the horizontal baffle plate at the tail end are lower in position and slightly downward and inward in direction, the first annular steel bar basically keeps an arc shape and penetrates in from the lower part of the inner side of the annular steel bar inserting groove due to self gravity deformation. The appointed position sensor 5 detects that the first ring is in place to the steel bar and sends a signal, and at the moment, the transmission action of the arc bending conveyor is stopped.
The preferred method is as follows: the first section of guide rail key is started to be opened, the air compressor drives the control valve to exchange directions, the air cylinder is pulled back or the linear motor works to drive the first root ring to withdraw a stroke towards the horizontal baffle 2 below the reinforcing steel bar, and the notch below the arc-shaped cover plate 1 is opened. The first hoop reinforcing steel bar is blocked by the vertical stop column 4 arranged at the end part of the track and the middle gap, and cannot be withdrawn along with the horizontal baffle 2, and can only fall into the opening below the arc-shaped cover plate 1 so as to fall onto the sliding form platform or the ground.
The preferred method is as follows: and (3) inserting the (m + 1) th hoop into the curved arc conveyor, starting the curved arc conveyor again, pushing the (m) th hoop in the hoop inserting slot into the steel bar by about 1.4-1.5m (the distance c between the two open frames is preferably 1.5 m), and allowing the second and third steel bars to drop circumferentially.
And 7, repeating the step 5 and the step 6 until the nth circumferential steel bars completely enter the arc bending conveyor, wherein the arc bending conveyor forwards for a distance of about c (preferably about 1.4-1.5 meters) each time, and the two circumferential steel bars at the foremost ends freely fall at the same time.
If need more rapid efficiency to wear to send the hoop reinforcing bar, can not divide into two sections with the whole circle propelling movement with the arc track, symmetrical arrangement, the position that first hoop reinforcing bar wore to send exceeds about 800mm for opposite open frame. And (3) feeding the subsequent circumferential steel bars by 1.4-1.5m (the distance between two open frames) more than the previous group of steel bars, and feeding the subsequent circumferential steel bars by using a curved arc conveyor to penetrate about half of the circumference in the forward and reverse directions. If the silo is large in size, the silo can be divided into more sections, and the method is similar.
The invention reduces the manual workload of penetrating the ring-direction reinforcing steel bars by more than 80%, improves the efficiency by more than 1 time, and reduces the required manual work by 50-80%. The labor cost of slip form construction is greatly saved, the construction period is shortened, and the construction efficiency is improved.
In addition, the invention can also be used for the threading of steel ropes. When the annular slot is worn to send, only the circumferential spacing space between the sliding baffles needs to be eliminated, namely, the circumferential spacing space is set to be zero, and an almost complete annular slot is formed. When inserting a plurality of circles of steel strands, the arc-shaped upper rails are arranged to be plane spiral rails, the sliding baffle plates cover the lower side openings of all the arc-shaped upper rails at the same time, and preferably, the plane arc-shaped baffle plates are used, and the sliding stroke of the plane arc-shaped baffle plates covers the radial distance of the spiral rails. When the steel cable is threaded, the sliding lower rail does not need to be opened and closed for multiple times, and the lower rail only needs to be opened and closed once for one circle.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the embodiments, and various equivalent modifications can be made within the technical spirit of the present invention, and the scope of the present invention is also within the scope of the present invention.
Claims (10)
1. A silo wears reinforcing bar and uses conveying method, characterized by that: the method comprises the following steps:
step 1, closing a conveying track: the sliding baffles slide along the radial direction of the sliding mould under the action of a radial sliding driving device corresponding to the lower rail, so that all the sliding baffles are positioned under the arc-shaped upper rail, and an annular reinforcing steel bar inserting groove is formed between each sliding baffle and each sliding upper rail; at the moment, the position of the sliding baffle is called a steel bar inserting position;
step 2, adjusting the height of the sliding baffle: adjusting the height of each sliding baffle according to the diameter of the to-be-transmitted annular steel bar or the sleeve cap, so that the annular steel bar inserting slot formed in the step 1 can only accommodate one to-be-transmitted annular steel bar or one sleeve cap in the radial direction; the sleeve cap can be coaxially sleeved at the head end of the annular reinforcing steel bar to be conveyed;
step 3, inserting m circumferential steel bars: assuming that the curved arc conveyor is used for automatically conveying the circumferential steel bars required by slip form arc length L binding, and when binding joints with the set length of b are arranged between two adjacent circumferential steel bars, setting the total number of the circumferential steel bars required by slip form arc length L binding to be n; when two adjacent circumferential reinforcing steel bars are only in end-to-end contact without overlapping, setting the total number of the circumferential reinforcing steel bars corresponding to the arc length L of the slip form to be m, wherein m is less than n; sequentially enabling the m circumferential steel bars to pass through a curved arc conveyor to run circles and convey the circles to the circumferential steel bar inserting grooves in the step 2; under the automatic transmission of the curved arc conveyor, the next circumferential steel bar in the m circumferential steel bars pushes the front circumferential steel bar in a head-to-tail abutting contact mode, and the circumferential steel bar moves forwards along the circumferential steel bar inserting groove for inserting until the first circumferential steel bar at the foremost end reaches a set target position;
step 4, freely falling the first hoop steel bar: all the sliding baffles positioned under the first annular reinforcing steel bar slide away from the reinforcing steel bar inserting position under the action of the corresponding lower rail radial sliding driving device; meanwhile, the first annular steel bar cannot move along with the sliding baffle under the limitation of the vertical upright column, and the free falling body falls to the slip form platform;
step 5, freely falling the second and third annular steel bars: if the distance between two adjacent Chinese character opening frames is c, pushing the (m + 1) th ring forward to the reinforcing steel bar by the distance of c; at the moment, all the sliding baffles positioned under the second and third annular reinforcing steel bars slide away from the reinforcing steel bar inserting position under the action of the corresponding lower rail radial sliding driving device, and the second and third annular reinforcing steel bars freely fall to the sliding formwork platform;
step 6, freely falling the fourth and/or fifth annular steel bars: pushing the (m + 2) th ring forward to the steel bar by a distance of c; at the moment, the sliding baffle plate positioned right below the fourth and/or fifth annular steel bars slides away from the steel bar inserting position under the action of the radial sliding driving device of the corresponding lower rail, and the fourth and/or fifth annular steel bars freely fall to the sliding form platform; at the moment, if the fourth and fifth annular reinforcing steel bars fall one or two, the length of the reinforcing steel bar needs to be determined to be the shortest by manually pulling back the annular reinforcing steel bar when the binding joint is ensured to be b;
7, repeating the step 5 and the step 6 until the nth circumferential steel bars completely enter the arc bending conveyor, wherein the arc bending conveyor forwards pushes the distance of c each time, and one or two circumferential steel bars at the foremost end freely fall;
step 8, pushing the nth ring forward to the steel bar: sending the steel bar joint into a curved arc conveyor to push the nth ring forward to the steel bar, and then reversing the curved arc conveyor to take out the steel bar joint; meanwhile, the sliding baffles for supporting all the residual annular reinforcing steel bars in the annular reinforcing steel bar inserting slots completely slide away from the reinforcing steel bar inserting positions, so that all the residual annular reinforcing steel bars in the annular reinforcing steel bar inserting slots can freely fall down to the slip form platform;
step 9, positioning and binding the circumferential steel bars: moving the circumferential reinforcing steel bars on the slip form platform to enable the length of a binding joint between every two adjacent circumferential reinforcing steel bars to be b; the circumferential bars are then tied to the corresponding vertical bars.
2. The conveying method for reinforcing bars threaded into silos according to claim 1, characterized in that: in step 3, assuming that the circumference of the circle where the transmission track is located is T, setting the ratio L/T =1, 1/2, 1/3, 1/4 and … … of the sliding mode arc length L and the circumference T where the transmission track is located; and (4) automatically conveying the required annular reinforcing steel bars by adopting a curved arc conveyor for each set sliding mode arc length L.
3. The conveying method for reinforcing bars threaded into silos according to claim 1, characterized in that: in the steps 3 to 8, a sleeve cap is arranged between two annular reinforcing steel bars in the annular reinforcing steel bar inserting groove, and the sleeve cap is coaxially sleeved at the head end of the next annular reinforcing steel bar; the annular steel bar inserting groove can only accommodate one sleeve cap in the radial direction.
4. The conveying method for reinforcing bars threaded into silos according to claim 1, characterized in that: the device comprises a conveying track device, wherein the conveying track device comprises an arc-shaped upper rail, a sliding lower rail, a lower rail radial sliding driving device and an arc-shaped conveyor;
the silo sliding formwork comprises a plurality of open-type frames uniformly distributed along the circumferential direction of the sliding formwork, and each open-type frame comprises an inner side upright post, an outer side upright post and a cross beam for connecting the inner side upright post and the outer side upright post;
the arc-shaped upper rail is arranged below a cross beam of the open-type frame along the circumferential direction of the sliding form, and an arc-shaped circumferential through groove is formed in the bottom of the arc-shaped upper rail;
the sliding lower rail is positioned below the arc-shaped upper rail, and an annular steel bar inserting groove can be formed between the sliding lower rail and the sliding upper rail;
the sliding lower rail comprises a plurality of sliding baffles which are arranged in an arc shape along the circumferential direction, and a circumferential spacing space is formed between every two adjacent sliding baffles;
each sliding baffle is connected with a lower rail radial sliding driving device arranged on the open-type frame, and the sliding baffle can slide along the radial direction of the sliding mould under the action of the corresponding lower rail radial sliding driving device;
the curved arc conveyor is arranged at the circumferential spacing space and used for the circumferential reinforcement to run round and automatically conveying the circumferential reinforcement after the circumferential reinforcement runs round to the circumferential reinforcement through slot.
5. The conveying method for reinforcing bars threaded into silos according to claim 4, characterized in that: the lower rail radial sliding driving device comprises a horizontal fixing plate, a driving unit, a sliding block and a horizontal connecting plate; the horizontal fixing plate is arranged on the lower side of the cross beam through the vertical fixing plate, and the top surface of the horizontal fixing plate is provided with a sliding guide rail along the radial direction of the sliding mould; the sliding block is arranged on the sliding guide rail in a sliding mode and is connected with the driving unit positioned at the tail end of the sliding guide rail; the bottom surface of the horizontal connecting plate is arranged at the top of the sliding block, and the top surface of the horizontal connecting plate is provided with a sliding baffle; an operating handle is arranged on the sliding baffle.
6. The conveying method for reinforcing bars threaded into silos according to claim 4, characterized in that: the section of the arc-shaped circumferential through groove is arc-shaped or U-shaped.
7. The conveying method for reinforcing bars threaded into silos according to claim 4, characterized in that: the height of each sliding baffle can be adjusted, so that the automatic conveying device is suitable for the automatic conveying of annular reinforcing steel bars with different diameters; along the transmission direction of the annular reinforcing steel bars, the height of each sliding baffle is lower in the front and higher in the rear.
8. The conveying method for reinforcing bars threaded into silos according to claim 4, characterized in that: each sliding baffle is a linear-like horizontal baffle, and the length of the horizontal baffle is greater than the distance between two character opening frames but less than the distance between three character opening frames; the horizontal baffle plate spans the two open frames.
9. The conveying method for reinforcing bars threaded into silos according to claim 4, characterized in that: the vertical column is arranged on the slotted frame and used for limiting radial movement of the annular reinforcing steel bars in the annular reinforcing steel bar penetrating grooves.
10. The conveying method for reinforcing bars threaded into silos according to claim 4, characterized in that: the annular reinforcing steel bar inserting groove is used for inserting the annular reinforcing steel bar into the annular reinforcing steel bar inserting groove.
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| CN202011038400.3A CN112124939B (en) | 2020-09-28 | 2020-09-28 | Conveying track device and conveying method for steel bars penetrating through silo |
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| JPH04120372A (en) * | 1990-09-11 | 1992-04-21 | Shimizu Corp | Assembling method for pre-assembled steel beam reinforcing bars |
| CN201972312U (en) * | 2011-03-10 | 2011-09-14 | 中国建筑第六工程局有限公司 | Vertical steel bar positioning device in slip-forming construction |
| KR20140017410A (en) * | 2012-07-30 | 2014-02-11 | 주식회사 정우비엔씨 | Steel reinforcement transfer device |
| CN104847119A (en) * | 2015-04-09 | 2015-08-19 | 山东建筑大学 | Manual steel bar binding machine |
| CN205077856U (en) * | 2015-09-08 | 2016-03-09 | 广州市恒盛建设工程有限公司 | A control of concrete protection layer and horizontal rebar positioning device for silo sliding formwork construction |
| CN213387714U (en) * | 2020-09-28 | 2021-06-08 | 南京师范大学 | Silo wears reinforcing bar and uses conveying rail set |
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2020
- 2020-09-28 CN CN202011038400.3A patent/CN112124939B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04120372A (en) * | 1990-09-11 | 1992-04-21 | Shimizu Corp | Assembling method for pre-assembled steel beam reinforcing bars |
| CN201972312U (en) * | 2011-03-10 | 2011-09-14 | 中国建筑第六工程局有限公司 | Vertical steel bar positioning device in slip-forming construction |
| KR20140017410A (en) * | 2012-07-30 | 2014-02-11 | 주식회사 정우비엔씨 | Steel reinforcement transfer device |
| CN104847119A (en) * | 2015-04-09 | 2015-08-19 | 山东建筑大学 | Manual steel bar binding machine |
| CN205077856U (en) * | 2015-09-08 | 2016-03-09 | 广州市恒盛建设工程有限公司 | A control of concrete protection layer and horizontal rebar positioning device for silo sliding formwork construction |
| CN213387714U (en) * | 2020-09-28 | 2021-06-08 | 南京师范大学 | Silo wears reinforcing bar and uses conveying rail set |
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