CN105583948A - End plate transferring mechanism for pipe pile production line - Google Patents

Abstract

The invention belongs to the technical field of construction and relates to an end plate conveying mechanism used in a pipe pile production line. Including a chain conveyor, the chain conveyor includes a circular conveyor chain, the conveyor chain is fixed with a number of end plate holders for placing the end plates, when the end plates are put into the end plate holders , the edge of the end plate is in contact with the end plate fixing frame so that the position of the end plate on the conveyor chain is fixed. The invention is suitable for automatic production lines, the whole process is stable and reliable, and the working efficiency is high.

Description

End plate transfer mechanism for pipe pile production line

technical field

The invention belongs to the technical field of construction and relates to an end plate conveying mechanism used in a pipe pile production line.

Background technique

The production process of existing prefabricated piles or pipe piles is as follows:

1. Measuring and mixing of concrete raw materials. According to the designed mix ratio, sand, stone, cement, water, admixtures and admixtures are accurately measured, and a concrete forced mixer is used to make fresh concrete with a low slump of 3cm to 5cm. The design requires concrete The strength grade is not lower than C60 or C80.

2. Fabrication of centrifugal square pile end plate. The production of the end plate of the pipe pile is basically the same, but the shape of the end plate of the square pile is square, and the counterbores of the prestressed main reinforcement are evenly distributed along the four sides and corners of the end plate. Before the end plate is installed, square pile hoops made of thin steel plates with a thickness of 1.5mm to 2mm need to be welded around.

3. Skeleton production. The prestressed main reinforcement adopts low-relaxation prestressed concrete steel rods, which need to be precisely lengthened, cut, and heading; the spiral reinforcement adopts low-carbon cold-drawn steel wires with a vertebra of 4mm to 6mm; according to the design requirements of centrifugal square pile structure reinforcement, The square steel frame is processed by a special square pile frame automatic welding machine.

4. Install the steel skeleton. Place the prepared steel bar skeleton and welded hoop of the square end plate in the steel mold of the centrifugal square pile, and connect them with the prestressed steel anchor plate, tension plate, tension rod, etc.

5. Concrete cloth. According to the dosage requirements of each centrifugal square pile, fill the lower half of the mold with fresh concrete evenly along the mold, and place as much concrete as possible on the stretched end.

6. Mold closing. Lift the upper half of the steel mold of the centrifugal square pile above the lower half of the steel mold, and fix the upper and lower half of the steel mold with bolts to ensure that the mold does not loosen and the concrete does not run out of slurry during high-speed centrifugal operation.

7. Prestressed tension. A jack-type tensioning machine is used to overall tension the steel frame of the centrifugal square pile after mold closing. After the tension reaches 70% of the strength of the steel bar, the tension rod is fixed on the steel mold with a large nut.

8. Centrifugal process. The above-mentioned tensioned and anchored centrifugal square pile with mold is hoisted above the centrifuge, and accelerated step by step according to the centrifugal speed of initial speed, medium speed, medium high speed and high speed, and the centrifugation time is generally 10 minutes to 18 minutes. Through the centrifugal compacting forming process, the fresh concrete is evenly compacted along the mold periphery of the centrifugal square pile, and at the same time, the pipe pile forms a circular inner cavity. After centrifugation, raise the tension end and dump the waste slurry water generated during centrifugation.

9. Primary steam curing. Hang the molded centrifugal square pile after centrifugation into the atmospheric pressure steam curing pit, stop for 1h~2h, slowly raise the temperature to 90℃~100℃, and cure under normal pressure for 4h~8h, so that the concrete strength can reach more than 40MPa.

10. Demoulding. Lift the molded centrifugal square pile after primary steam curing to the special demoulding platform, remove the tension bolts and mold clamping bolts with a pneumatic wrench, apply prestress to the pile body, then lift the upper half mold, turn it down Half mold, unload the prestressed tensioning large screw. Clean up the upper and lower mold halves, anchor plates, tension rods, and apply release agent. For centrifugal square piles with a concrete design strength grade of C60, the demoulded centrifugal square piles are directly hoisted to the finished product yard for natural curing, and can be shipped after reaching the factory strength.

11. High pressure steaming. For centrifugal square piles whose design concrete strength grade is above C80, the demoulded centrifugal square piles need to be put into the autoclave for high-temperature steam curing. The maximum temperature is 180℃～200℃, the saturated steam pressure is 1.0MPa, and the curing time is 8h～ 12h, make the concrete strength reach more than 80MPa. The pipe piles after high pressure curing can be directly delivered to the factory for piles.

Among them, in the demoulding process, the existing technology is to use a pneumatic wrench to remove the tensioning bolts, and then remove the end plates used for tensioning. When entering the process of installing the steel skeleton, that is, the end plates have to be transported back and forth, which greatly wastes production time, the production efficiency is not high, and it is not suitable for the needs of automated production.

Contents of the invention

The object of the present invention is to solve the above problems and provide an end plate conveying mechanism for a pipe pile production line with high working efficiency.

In order to achieve the above object, the present invention adopts the following technical solutions: an end plate transmission mechanism for pipe pile production line, including a chain conveyor, and the chain conveyor includes a circular conveyor chain, on which A number of end plate fixing frames are fixed for placing the end plates. When the end plates are put into the end plate fixing frames, the edges of the end plates are in contact with the end plate fixing frames so that the position of the end plates on the conveyor chain is fixed.

In the above-mentioned end plate conveying mechanism for the pipe pile production line, the number of end plate fixing frames are evenly spaced and detachably fixed on the conveyor chain, and the chain conveyor includes active conveyors located at both ends of the chain conveyor. The transmission shaft assembly and the passive transmission shaft assembly, the conveyor chain meshes with the active transmission shaft assembly and the passive transmission shaft assembly, and the active transmission shaft assembly is connected to the main shaft drive mechanism.

In the above-mentioned end plate transmission mechanism used in the pipe pile production line, the driving transmission shaft assembly includes a driving shaft connected to the main shaft driving mechanism and a driving sprocket fixedly connected to the driving shaft, and the passive transmission shaft assembly includes The driven shaft and the driven sprocket fixedly connected with the driven shaft, and the conveying chain meshes with the driving sprocket and the driven sprocket.

In the above-mentioned end plate transmission mechanism used in the pipe pile production line, the end plate fixing frame includes two limit baffles respectively fixed on the conveying chain and opposite to each other, and the two limit baffles are connected by a The parts are fixedly connected, and every two end plate fixing frames form a group, and the interval between each group of end plate fixing frames is even.

In the above-mentioned end plate conveying mechanism for the pipe pile production line, the distance between the two limit baffles on the end plate fixing frame is suitable for the thickness of the end plate, when the end plate is inserted into the two end plate fixing frames In the middle, the end plate is vertically fixed between the two end plate fixing frames and the two surfaces of the end plate are in contact with the adjacent limit baffles respectively.

In the above-mentioned end plate conveying mechanism for the pipe pile production line, there are two conveying chains and the planes are parallel to each other, the end plate fixing frame is fixed in the middle of the two conveying chains, and the two end plate fixing frames The block limiting baffles are respectively fixed on a conveying chain, and the bottoms of the two limiting baffles are fixedly connected with the two conveying chains through connecting pins.

In the above-mentioned end plate conveying mechanism for pipe pile production line, a chain support assembly for supporting the conveying chain when the conveying chain is drooping is arranged between the active conveying shaft assembly and the passive conveying shaft assembly.

In the above-mentioned end plate conveying mechanism used in the pipe pile production line, the chain support assembly includes two support members vertically arranged up and down, and the position of the support members in the vertical direction corresponds to the conveying chain , and the two supports are parallel to each other in the horizontal direction.

In the above-mentioned end plate conveying mechanism for a pipe pile production line, the main shaft driving mechanism includes a driver, and the driver is connected to the driving transmission shaft assembly by a conveyor belt mechanism.

In the above-mentioned end plate conveying mechanism for a pipe pile production line, the conveying belt mechanism includes a pulley assembly or a sprocket assembly, and the driver includes an electric motor or a hydraulic motor.

Compared with the existing technology, the present invention has the advantage that after the end plate is unloaded from the pipe mold, it can be directly put into a fixed position on the chain conveyor and transported, which saves manpower and stacking and transportation procedures, thereby improving work efficiency. High efficiency, because the end plate is continuously conveyed by chain, the working process is safe and reliable.

Description of drawings

Fig. 1 is a structural representation provided by the present invention;

Fig. 2 is a schematic diagram of another direction of Fig. 1;

Fig. 3 is a schematic diagram of another direction of Fig. 1 .

In the figure: chain conveyor 1, conveyor chain 2, end plate fixing frame 3, active transmission shaft assembly 4, passive transmission shaft assembly 5, main shaft drive mechanism 6, driving shaft 7, driving sprocket 8, passive shaft 9, passive chain Wheel 10 , limit baffle 11 , connecting piece 12 , connecting pin 13 , chain support assembly 14 , supporting piece 15 , driver 16 , conveyor belt mechanism 17 , end plate 100 , machine base 101 .

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, an end plate conveying mechanism for a pipe pile production line includes a chain conveyor 1, and the chain conveyor 1 includes an annular conveying chain 2, and the conveying chain 2 is fixed with several The end plate fixing frame 3 for placing the end plate 100, when the end plate 100 is put into the end plate fixing frame 3, the edge of the end plate 100 is in contact with the end plate fixing frame 3 so that the end plate is in the conveyor chain 2 The upper position is fixed.

In a preferred solution, several end plate fixing frames 3 are evenly spaced and detachably fixed on the conveyor chain 2, and the chain conveyor 1 includes a driving transmission shaft assembly 4 and a passive transmission shaft assembly 5 respectively located at both ends of the chain conveyor 1, Referring again to FIG. 2 , the conveyor chain 2 is engaged with the driving transmission shaft assembly 4 and the passive transmission shaft assembly 5 , and the driving transmission shaft assembly 4 is connected to the main shaft driving mechanism 6 .

The active transmission shaft assembly 4 includes a drive shaft 7 connected to the main shaft drive mechanism 6 and a drive sprocket 8 fixedly connected with the drive shaft 7, and the passive transmission shaft assembly 5 includes a driven shaft 9 and a passive shaft fixedly connected with the driven shaft 9. The sprocket 10, the conveyor chain 2 meshes with the driving sprocket 8 and the driven sprocket 10. Those skilled in the art should understand that the driving shaft 7 is rotatably connected to the driven shaft 9 and the base 101 .

As shown in Figure 3, the end plate fixing frame 3 includes two limit baffles 11 respectively fixed on the conveyor chain 2 and facing each other, and the two limit baffles 11 are fixedly connected by a connecting piece 12, and the connecting piece 12 Can be rivets, bolts, bearing pins, etc., every two end plate fixing frames 3 form a group, and each group of end plate fixing frames 3 are evenly spaced. The shape of the limiting baffle 11 is not limited, and is preferably rectangular.

Specifically, the distance between the two limit baffles 11 on the end plate fixing frame 3 is suitable for the thickness of the end plate 100. When the end plate is inserted into the middle of the two end plate fixing frames 3, the end plate is vertical. The straight shape is fixed between the two end plate fixing frames 3 and the two surfaces of the end plates are in contact with the adjacent limit baffles 11 respectively, that is, the two ends of the end plate 100 and each end plate fixing frame 3 are opposite to each other. Block limit baffle 11 clearance fit.

There are two conveyor chains 2 and the planes are parallel to each other. The end plate fixing frame 3 is fixed in the middle of the two conveyor chains 2. The two limit baffles 11 on the end plate fixing frame 3 are respectively fixed on a conveyor chain 2. , and the bottoms of the two limit baffles 11 are fixedly connected with the two conveying chains 2 through connecting pins 13 .

A chain support assembly 14 is provided between the active transmission shaft assembly 4 and the passive transmission shaft assembly 5 for supporting the conveyor chain 2 when the conveyor chain 2 is drooping. Those skilled in the art should understand that when the conveyor chain 2 bears the load of the end plate 100, the conveyor chain 2 will sag. If there is no support, the operation of the conveyor chain 2 may be smooth. It is arranged below the conveyor chain 2 to form a support for the conveyor chain 2 .

In this embodiment, the chain support assembly 14 includes two support members 15 arranged up and down in the vertical direction, and the position of the support members 15 in the vertical direction corresponds to the conveying chain 2. They are directly pressed on the support frame 15, and the two support members 15 are parallel to each other in the horizontal direction. The supporting member 15 can be an I-beam, in a fixed position, and can be fixedly connected with the chain conveyor 1 or fixedly connected with the ground foundation.

As shown in FIG. 1 , the spindle driving mechanism 6 includes a driver 16 , and the driver 16 is connected to the driving transmission shaft assembly 4 with a transmission belt mechanism 17 . The transmission belt mechanism 17 includes a pulley assembly or a sprocket assembly, and the driver 16 includes an electric motor or a hydraulic motor.

The passive transmission shaft assembly described in the embodiment of the present invention is equipped with a tensioning device, and the chain can be tensioned by the tensioning device when the tension force is insufficient during the use and installation of the chain.

The working process of the present invention is: when the end plate 100 is removed from the pipe form used for pile making, the end plate is vertical and can be directly inserted into the end plate fixing frame 3, saving the stacking of the end plate 100 and the cost of transportation process. Start the driver 16, the driver 16 drives the driving shaft 7 to rotate through the transmission belt mechanism 17, thereby driving the driving sprocket 8 to rotate, and then drives the conveyor chain 2 to rotate, the end plate fixing frame 3 rotates synchronously with the conveyor chain 2, and the end plate 100 is driven from the conveyor chain 2 is transported from one end to the other, if a reinforcement cage placement frame is set on the other end of the conveyor chain 2, the end plate 100 can be directly removed from the conveyor chain 2 and put into cooperation with the reinforcement cage, which reduces the time spent on back and forth transportation. Manpower and time, the safety of the work process is also greatly improved, and the work efficiency is greatly improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Although the chain conveyor 1, the conveyor chain 2, the end plate fixing frame 3, the driving transmission shaft assembly 4, the passive transmission shaft assembly 5, the main shaft driving mechanism 6, the driving shaft 7, the driving sprocket 8, and the passive shaft are widely used in this paper 9. Terms such as driven sprocket 10, limit baffle 11, connector 12, connecting pin 13, chain support assembly 14, support 15, driver 16, conveyor belt mechanism 17, end plate 100, machine base 101, etc., but The possibility of using other terms is not excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims (10)

1. for an end plate connecting gear for pile tube production line, comprise chain transfer(1), it is characterized in that, described chain transfer (1) comprises ringwise carrier chain(2), on described carrier chain (2), be fixed with and somely fix for the end plate of placing end plateFrame (3), in the time that end plate is put in end plate fixed mount (3), the edge of end plate and end plateFixed mount (3) thus against contact, end plate is fixed in the upper position of carrier chain (2).

2. the end plate connecting gear for pile tube production line according to claim 1,It is characterized in that, described some end plate fixed mounts (3) interval is even and dismountable solidFix on carrier chain (2) upper, described chain transfer (1) comprises and lays respectively at chainThe active transmission shaft assembly (4) at conveyer (1) two ends and passive transmission shaft assembly (5),Carrier chain (2) engages with active transmission shaft assembly (4) and passive transmission shaft assembly (5),Described active transmission shaft assembly (4) connects main shaft drives mechanism (6).

3. the end plate connecting gear for pile tube production line according to claim 2,It is characterized in that, described active transmission shaft assembly (4) comprises with main shaft drives mechanism (6)The driving shaft (7) connecting and the drive sprocket (8) being fixedly connected with driving shaft (7),Described passive transmission shaft assembly (5) comprises driven axle (9) and solid with driven axle (9)Fixed connect by movable sprocket (10), described carrier chain (2) and drive sprocket (8) andEngaged by movable sprocket (10).

4. the end plate connecting gear for pile tube production line according to claim 1,It is characterized in that, described end plate fixed mount (3) comprises that two are separately fixed at carrier chain(2) upper and opposed postive stop baffle (11), uses between two postive stop baffles (11)Connector (12) is fixedly connected with, and every two end plate fixed mounts (3) are one group, every group of endPlate fixed mount (3) interval is even.

5. the end plate connecting gear for pile tube production line according to claim 4,It is characterized in that the distance between two postive stop baffles (11) on end plate fixed mount (3)From matching with the thickness of end plate, in the middle of end plate is inserted into two end plate fixed mounts (3)Time, end plate is vertical shape and is fixed between two end plate fixed mounts (3) and two of end plateSurface respectively with adjacent postive stop baffle (11) against contacting.

6. the end plate connecting gear for pile tube production line according to claim 4,It is characterized in that, described carrier chain (2) has two and residing plane to be parallel to each other,End plate fixed mount (3) is fixed in the middle of two carrier chains (2), end plate fixed mount (3)On two postive stop baffles (11) to be separately fixed at a carrier chain (2) upper, and twoThe bottom of postive stop baffle (11) is fixing by connecting pin (13) and two carrier chains (2)Connect.

7. the end plate connecting gear for pile tube production line according to claim 2,It is characterized in that described active transmission shaft assembly (4) and passive transmission shaft assembly (5)Between be provided with in the time that carrier chain (2) is sagging can to carrier chain (2) form supportChain supporting component (14).

8. the end plate connecting gear for pile tube production line according to claim 7,It is characterized in that, described chain supporting component (14) comprises two in the vertical directionsSupport member set up and down (15), the position of support member (15) in the vertical direction withCarrier chain (2) is corresponding, and two support members (15) are parallel to each other in the horizontal direction.

9. the end plate connecting gear for pile tube production line according to claim 2,It is characterized in that, described main shaft drives mechanism (6) comprises driver (16), described inDriver (16) with transport tape mechanism (17) connect active transmission shaft assembly (4).

10. the end plate connecting gear for pile tube production line according to claim 9,It is characterized in that, described transport tape mechanism (17) comprises pulley assembly or chain wheel setPart, described driver (16) comprises motor or hydraulic motor.