Centrifugal concrete pipe pile and square pile preparation equipment

Abstract

The invention relates to the technical field of concrete pile forming, in particular to centrifugal concrete pipe pile and square pile preparation equipment. Comprising a base, and a driving table is fixedly mounted at the upper end of the base; the driving table is located at one end of the base. A hydraulic chuck is rotationally installed on the face, close to the base, of the driving table. Through cooperation of the annular plate and the hydraulic push rod, the hydraulic push rod clamps a square pile mold in the center of the annular plate through the clamping blocks, the annular plate can drive the square pile mold clamped by the clamping blocks to rotate in the process that the servo motor drives the annular plate to rotate, and therefore a circular plate does not need to be additionally arranged on the surface of the square pile mold; by means of the technical scheme, use of materials is greatly reduced, in the curing process, the space, occupied by the circular plate, of the curing tank is reduced, the curing number of square pile molds in the curing tank is greatly increased, then the production efficiency of hollow square piles is improved, in the same way, the annular plate can also clamp the pipe pile molds through the clamping blocks for centrifugal forming, and the application range of the device is widened.

Description

Technical Field

[0001] The invention relates to the technical field of concrete pile forming, in particular to a centrifugal concrete pipe pile and square pile preparation device. Background Art

[0002] Concrete piles are a type of pile foundation composed of steel bars and concrete. They are widely used in the fields of construction, transportation, water conservancy, etc. Concrete piles can be divided into two categories according to their cross-sectional shape: pipe piles and square piles. Since square piles have a large surface area and are square in shape, the angle of repose between the pile body and the soil in the soil layer is much larger than that of round piles. This means that hollow square piles can obtain greater bearing capacity than pipe piles under the same geological conditions, and are suitable for foundation projects that need to bear large loads, such as high-rise buildings and large bridges. The surface of pipe piles is curved, which makes it difficult for the pipe piles to become unstable or damaged due to changes in the external environment or loads, so they have a longer service life. Square piles and pipe piles are both solid and hollow. The purpose of designing them to be hollow is, on the one hand, to reduce their own weight, save materials, and facilitate installation and transportation. On the other hand, it is to consider the effects of thermal expansion and contraction, thereby effectively reducing the stress of the pile body under temperature changes, which is especially suitable for large-diameter concrete piles. This hollow design allows the pile body to expand and contract more freely when the temperature changes, thereby reducing the internal stress caused by temperature changes and helping to maintain the stability and structural integrity of the pile body. However, the existing hollow pipe piles and square piles are formed by centrifuging the pipe pile mold and the square pile mold with a centrifuge to form the hollow inside of the pipe pile or the square pile; and the square pile mold is square, and in order to facilitate the centrifuge roller to roll and centrifuge it, it is necessary to add a circular plate to the outer wall of the square pile mold, so that the centrifuge can drive the square pile mold to rotate through the circular plate, but the addition of the circular plate not only increases the use of materials, but also increases the production cost; and during the curing process, the presence of the circular plate also limits the effective space utilization in the curing tank, which reduces the number of square pile molds that can be accommodated in each curing tank at the same time, thereby limiting the production efficiency of the hollow square piles; In view of this, in order to overcome the above technical problems, the present invention proposes a centrifugal concrete pipe pile and square pile preparation device to solve the above technical problems. Summary of the invention

[0003] In order to make up for the shortcomings of the prior art, the present invention proposes a centrifugal concrete pipe pile and square pile preparation equipment. The present invention arranges the cooperation between the annular plate and the hydraulic push rod, so that the hydraulic push rod clamps the square pile mold in the center of the annular plate through the clamping block, so that in the process of the servo motor driving the annular plate to rotate, the annular plate can drive the square pile mold clamped by the clamping block to rotate, so there is no need to add a circular plate on the surface of the square pile mold, which greatly reduces the use of materials, and during the curing process, the space occupied by the circular plate in the curing tank is reduced, which greatly increases the number of square pile molds in the curing tank, thereby improving the production efficiency of hollow square piles. Similarly, the annular plate can also be clamped by the clamping block to clamp the pipe pile mold for centrifugal forming, which increases the application scope of the present invention.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a centrifugal concrete pipe pile and square pile preparation device described in the present invention comprises: A base, wherein a driving platform is fixedly mounted on the upper end of the base; the driving platform is located at one end of the base; a hydraulic chuck is rotatably mounted on a side of the driving platform close to the base; A mounting frame, a side wall of the base is provided with a slide groove; a screw is rotatably connected in the slide groove; the mounting frame is slidably connected in the slide groove; the mounting frame is helically connected to the screw; an annular plate is provided between the mounting frame and the base; the annular plate is rotatably connected to the mounting frame; a hydraulic push rod is fixedly installed on the inner wall of the annular plate; a clamping block is fixedly connected to the end of the hydraulic push rod away from the annular plate; a servo motor is installed at the end of the base close to the driving platform; the servo motor is used to drive the screw to rotate; a transmission unit is installed at the base end; the servo motor drives the annular plate to rotate through the transmission unit.

[0005] Preferably, a mounting groove is provided inside the mounting frame; a mounting block is slidably connected in the mounting groove; the mounting block is fixedly connected to the bottom of the mounting groove by a connecting spring; an electromagnetic ring is inlaid in the bottom of the mounting groove; one end of the mounting block away from the mounting groove is helically connected to the screw; and the threads at both ends of the screw are arranged oppositely.

[0006] Preferably, the transmission unit includes a bevel gear set and a worm; the bevel gear set includes a bevel gear shaft and a bevel gear ring that mesh with each other; the bevel gear shaft is rotatably connected to the upper end of the base; the bevel gear ring is fixedly connected to the annular plate; a cavity is opened inside the base; the worm is rotatably connected in the cavity; a worm wheel that meshes with the worm is provided in the cavity; the worm wheel is fixedly connected to the lower end of the bevel gear shaft; the worm and the screw are connected by belt drive.

[0007] Preferably, the worm and the screw are both fixedly connected with spur gears at one end close to the servo motor; a transmission belt is sleeved on the surface of the spur gear; a tooth groove is formed on the inner ring wall of the transmission belt; and the transmission belt meshes with the spur gear through the tooth groove.

[0008] Preferably, a fixing groove is provided at the bottom of the slide groove; a fixing rod is slidingly and sealably connected in the fixing groove; the fixing rod is fixedly connected to the bottom of the fixing groove by a fixing spring; and a card slot matching the fixing groove is provided on the lower end surface of the mounting frame.

[0009] Preferably, a push block is slidably and sealably connected in the card slot; the card slot is connected to the mounting slot via an airway; and oblique slots facing the fixing rod are provided on both sides of the mounting frame.

[0010] Preferably, a strip groove is formed at one end of the clamping block away from the hydraulic push rod; and the clamping block is made of fluororubber material.

[0011] Preferably, an airbag is arranged in the slide groove; the airbag is sleeved on the surface of the screw; the airbag is fixedly connected to the mounting frame; an air cavity connected to the airbag is provided inside the mounting frame; an annular groove connected to the air cavity is provided on one side of the annular plate close to the mounting frame; an air hole is provided at the bottom of the strip groove; the air hole is connected to the annular groove through a hose; an air inlet is provided on the surface of the airbag; and one-way valves are installed on the air inlet and inside the air cavity.

[0012] The beneficial effects of the present invention are as follows: The present invention arranges the cooperation between the annular plate and the hydraulic push rod so that the hydraulic push rod clamps the square pile mold at the center of the annular plate through the clamping block, so that when the servo motor drives the annular plate to rotate, the annular plate can drive the square pile mold clamped by the clamping block to rotate, so there is no need to add a circular plate on the surface of the square pile mold, which greatly reduces the use of materials. In addition, during the maintenance process, the space occupied by the circular plate in the maintenance tank is reduced, which greatly increases the number of square pile molds in the maintenance tank, thereby improving the production efficiency of hollow square piles. Similarly, the annular plate can also be used to clamp the pipe pile mold through the clamping block for centrifugal forming, thereby increasing the application scope of the present invention.

[0013] The present invention sets the meshing of the teeth of the spur gear and the transmission belt, so that when the servo motor drives the spur gear connected to the screw to rotate, the screw pushes the teeth of the transmission belt through the connected spur gear, and then the spur gear pushes the transmission belt to rotate. The teeth of the transmission belt are directly meshed with the teeth of the spur gear, which can form an effective transmission connection and improve the transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0015] Figure 1 is a stereogram of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention; Figure 3 yes Figure 2 The enlarged view of point A in the middle; Figure 4 yes Figure 2 The enlarged view of point B in the middle; Figure 5 is a perspective view of a mounting frame used in the present invention; Figure 6 Schematic diagram of the transmission of the screw used in the present invention; Figure 7 yes Figure 6 Enlarged view of point C in the middle; Figure 8 is a schematic diagram of a partial structure of an airbag used in the present invention; In the figure: 1, base; 11, drive platform; 111, hydraulic chuck; 12, slide; 121, air bag; 122, air inlet; 123, one-way valve; 13, screw; 131, servo motor; 14, fixing groove; 141, fixing rod; 142, fixing spring; 15, strip groove; 2, mounting frame; 21, annular plate; 211, hydraulic push rod; 212, clamping block; 22, mounting groove; 2 21. Mounting block; 222. Connecting spring; 23. Electromagnetic ring; 24. Worm; 241. Bevel gear shaft; 242. Bevel gear ring; 243. Cavity; 244. Worm wheel; 245. Spur gear; 25. Transmission belt; 251. Tooth groove; 26. Slot; 261. Push block; 262. Air passage; 263. Bevel groove; 27. Air cavity; 28. Annular groove; 281. Air hole; 282. Hose. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0017] like Figures 1 to 8 As shown, the centrifugal concrete pipe pile and square pile preparation equipment of the present invention comprises: A base 1, a driving platform 11 is fixedly mounted on the upper end of the base 1; the driving platform 11 is located at one end of the base 1; a hydraulic chuck 111 is rotatably mounted on a side of the driving platform 11 close to the base 1; The mounting frame 2, the side wall of the base 1 is provided with a slide groove 12; the slide groove 12 is rotatably connected with a screw rod 13; the mounting frame 2 is slidably connected in the slide groove 12; the mounting frame 2 is spirally connected with the screw rod 13; an annular plate 21 is provided between the mounting frame 2 and the base 1; the annular plate 21 is rotatably connected with the mounting frame 2; a hydraulic push rod 211 is fixedly installed on the inner wall of the annular plate 21; the end of the hydraulic push rod 211 away from the annular plate 21 is fixedly connected with a clamping block 212; a servo motor 131 is installed at the end of the base 1 close to the driving platform 11; the servo motor 131 is used to drive the screw rod 13 to rotate; a transmission unit is installed at one end of the base 1; the servo motor 131 drives the annular plate 21 to rotate through the transmission unit.

[0018] As an embodiment of the present invention, a mounting groove 22 is provided inside the mounting frame 2; a mounting block 221 is slidably connected inside the mounting groove 22; the mounting block 221 is fixedly connected to the bottom of the mounting groove 22 by a connecting spring 222; an electromagnetic ring 23 is inlaid at the bottom of the mounting groove 22; the end of the mounting block 221 away from the mounting groove 22 is spirally connected to the screw 13; the threads at both ends of the screw 13 are arranged oppositely.

[0019] As an embodiment of the present invention, the transmission unit includes a bevel gear set and a worm 24; the bevel gear set includes a bevel gear shaft 241 and a bevel gear ring 242 that mesh with each other; the bevel gear shaft 241 is rotatably connected to the upper end of the base 1; the bevel gear ring 242 is fixedly connected to the annular plate 21; a cavity 243 is opened inside the base 1; the worm 24 is rotatably connected in the cavity 243; a worm wheel 244 meshing with the worm 24 is provided in the cavity 243; the worm wheel 244 is fixedly connected to the lower end of the bevel gear shaft 241; the worm 24 is connected to the screw 13 through a belt drive.

[0020] As an embodiment of the present invention, the worm 24 and the end of the screw 13 close to the servo motor 131 are both fixedly connected with a spur gear 245; a transmission belt 25 is sleeved on the surface of the spur gear 245; a tooth groove 251 is opened on the inner ring wall of the transmission belt 25; the transmission belt 25 is meshed with the spur gear 245 through the tooth groove 251; During operation, the existing hollow pipe piles and square piles are all formed by centrifuging the pipe pile mold and the square pile mold through a centrifuge, so that the hollow inside of the pipe pile or the square pile is formed; and the square pile mold is square, and in order to facilitate the centrifugal rolling of the roller of the centrifuge, a circular plate is required to be added to the outer wall of the square pile mold, so that the centrifuge drives the square pile mold to rotate through the circular plate, but the addition of the circular plate not only increases the use of materials, but also increases the production and manufacturing costs; and during the curing process, the presence of the circular plate also limits the effective space utilization in the curing tank, which reduces the number of square pile molds that can be accommodated in each curing tank at the same time, thereby limiting the production and manufacturing efficiency of the hollow square piles; In this regard, the present invention sets the cooperation between the annular plate 21 and the hydraulic push rod 211, so that the hydraulic push rod 211 clamps the square pile mold at the center of the annular plate 21 through the clamping block 212, so that when the servo motor 131 drives the annular plate 21 to rotate, the annular plate 21 can drive the square pile mold clamped by the clamping block 212 to rotate, so there is no need to add a circular plate on the surface of the square pile mold, which greatly reduces the use of materials. In addition, during the curing process, the space occupied by the circular plate in the curing tank is reduced, which greatly increases the number of square pile molds in the curing tank, thereby improving the production efficiency of hollow square piles. Similarly, the annular plate 21 can also clamp the pipe pile mold through the clamping block 212 for centrifugal molding, which increases the application scope of the present invention. In the initial state, two mounting frames 2 are provided, and both mounting frames 2 are meshed with the bevel gear shaft 241 through the bevel gear ring 242. The mounting block 221 in the mounting groove 22 extends out of the mounting groove 22 and is inserted into the thread of the screw rod 13 under the push of the restoring force of the connecting spring 222. Before the user transports the square pile mold filled with concrete to the base 1, the user needs to control the electromagnetic ring 23 in the mounting frame 2 close to the driving platform 11 to energize, so that the electromagnetic ring 23 can generate a magnetic adsorption force, thereby adsorbing the mounting block 221 in the mounting groove 22, so that the mounting block 221 can squeeze the connecting spring 222 into the mounting groove 22, so that The mounting block 221 is separated from the screw rod 13, and the mounting frame 2 close to the driving platform 11 is no longer connected to the screw rod 13 in a spiral transmission; at this time, the servo motor 131 is controlled to operate, so that the servo motor 131 can drive the mounting frame 2 away from the driving platform 11 to move in a direction away from the driving platform 11, so that the distance between the two mounting frames 2 increases; at this time, the user uses a crane and a sling to lift the square pile mold filled with concrete between the two mounting frames 2. After the concrete in the square pile mold is filled, the tension rod at one end of the square pile mold needs to be pre-tightened to tension the steel strand in the concrete; therefore, the square pile mold lifted between the two mounting frames 2 needs to maintain its tension. The pull rod is directed toward the driving platform 11; then the electromagnetic ring 23 is controlled to be de-energized, so that the mounting block 221 close to the driving platform 11 extends out of the mounting slot 22 and meshes with the screw 13 under the push of the connecting spring 222. At this time, the mounting frame 2 close to the driving platform 11 is connected with the screw 13 through a spiral transmission; because the threads at both ends of the screw 13 are arranged in opposite directions, as the servo motor 131 drives the screw 13 to rotate in the opposite direction, the screw 13 drives the two mounting frames 2 to move in a direction close to each other, so that the mounting frame 2 drives the annular plate 21 to approach the square pile mold, so that the two ends of the square pile mold pass through the center of the annular plate 21. At this time, the hydraulic push rod 211 is controlled to operate so that The hydraulic push rod 211 can push the clamping block 212 close to the square pile mold; since four hydraulic push rods 211 are fixedly installed on the surface of an annular plate 21, the screw rod hydraulic push rod 211 presses the four surfaces of the square pile mold through the clamping block 212, thereby fixing the square pile mold at the center position of the two annular plates 21; at this time, the electromagnetic ring 23 in the mounting frame 2 away from the driving platform 11 is controlled to be energized, so that the mounting frame 2 away from the driving platform 11 is separated from the screw rod 13, and at this time, the servo motor 131 is controlled to rotate forward, so that the servo motor 131 can drive the mounting frame 2 close to the driving platform 11 to continuously approach the servo motor 131 along the slide slot 12;Since the two mounting frames 2 clamp the square pile mold through the clamping block 212, and the mounting frame 2 far away from the driving platform 11 is separated from the screw 13, the mounting frame 2 close to the driving platform 11 can pull the mounting frame 2 far away from the driving platform 11 to move synchronously through the square pile mold, so that the two mounting frames 2 drive the square pile mold to approach the hydraulic chuck 111 until the bevel gear ring 242 on the mounting frame 2 contacts and meshes with the bevel gear shaft 241 on the base 1. At this time, the servo motor 131 stops, and the tension rod of the square pile mold is inserted into the hydraulic chuck 111 under the drive of the mounting frame 2, and the hydraulic chuck 111 is controlled to move The tension rod is clamped; at this time, the electromagnetic rings 23 in the two mounting frames 2 are controlled to be powered off, so that the two mounting frames 2 are not connected to the screw 13. Since the screw 13 and the worm 24 are connected by a belt drive, as the servo motor 131 is controlled to continue to rotate, the servo motor 131 can drive the worm 24 to rotate through the screw 13, so that the worm 24 can drive the worm wheel 244 meshing with it to rotate, so that the worm wheel 244 drives the bevel gear shaft 241 to rotate, so that the bevel gear shaft 241 drives the annular plate 21 to rotate through the bevel gear ring 242, so that the annular plate 2 1 drives the square pile mold clamped by the center to rotate synchronously. In order to improve the transmission efficiency between the worm 24 and the screw 13, a spur gear 245 is provided to mesh with the tooth groove 251 of the transmission belt 25, so that when the servo motor 131 drives the spur gear 245 connected to the screw 13 to rotate, the screw 13 pushes the tooth groove 251 of the transmission belt 25 through the connected spur gear 245, so that the spur gear 245 pushes the transmission belt 25 to rotate, and the tooth groove 251 of the transmission belt 25 directly meshes with the teeth of the spur gear 245, which can form an effective transmission connection and thus improve the transmission efficiency; The transmission belt 25 is made of a steel wire core rubber belt material. This transmission belt 25 is a rubber transmission belt 25 containing a metal wire core, which has high strength and wear resistance and can withstand large load transmission; and the steel wire core can effectively withstand high tension and impact loads to ensure the stability and safety of the transmission; and when clamping the pipe pile mold, only the arc-shaped clamping block 212 needs to be replaced to clamp and rotate the pipe pile mold, so that the present invention can centrifugally mold the pipe pile mold and the square pile mold, which increases the practical application range of the present invention; so that the practicality of the present invention is improved. ;

[0021] As an embodiment of the present invention, a fixing groove 14 is provided at the bottom of the slide groove 12; a fixing rod 141 is slidingly and sealably connected in the fixing groove 14; the fixing rod 141 is fixedly connected to the bottom of the fixing groove 14 by a fixing spring 142; and a card slot 26 matching the fixing groove 14 is provided on the lower end surface of the mounting frame 2.

[0022] As an embodiment of the present invention, a push block 261 is slidably sealed in the card slot 26 ; the card slot 26 is connected to the mounting slot 22 via an air passage 262 ; and oblique slots 263 facing the fixing rod 141 are provided on both sides of the mounting frame 2 .

[0023] As an embodiment of the present invention, a strip groove 15 is formed at one end of the clamping block 212 away from the hydraulic push rod 211; the clamping block 212 is made of fluororubber material.

[0024] As an embodiment of the present invention, an airbag 121 is provided in the slide groove 12; the airbag 121 is sleeved on the surface of the screw 13; the airbag 121 is fixedly connected to the mounting frame 2; an air cavity 27 connected to the airbag 121 is provided inside the mounting frame 2; an annular groove 28 connected to the air cavity 27 is provided on one side of the annular plate 21 close to the mounting frame 2; an air hole 281 is provided at the bottom of the strip groove 15; the air hole 281 is connected to the annular groove 28 through a hose 282; an air inlet 122 is provided on the surface of the airbag 121; a one-way valve 123 is installed in both the air inlet 122 and the air cavity 27; During operation, when the screw 13 drives the mounting frame 2 to move toward the hydraulic chuck 111, the mounting frame 2 drives the bevel gear ring 242 to the bevel gear shaft 241, so that the bevel gear ring 242 is meshed with the bevel gear shaft 241. At this time, the mounting frame 2 away from the hydraulic chuck 111 is not meshed with the screw 13; the mounting frame 2 away from the hydraulic chuck 111 is inertial and drives the bevel gear ring 242 to squeeze the bevel gear shaft 241; thus, it is easy to cause the bevel gear ring 242 and the bevel gear shaft to be meshed. 241, thereby reducing the service life of the bevel gear ring 242 and the bevel gear shaft 241; in the process of the mounting frame 2 driving the bevel gear ring 242 to continuously approach the bevel gear shaft 241, the mounting frame 2 will first contact the fixing rod 141. In order to prevent the mounting frame 2 from hitting the fixing rod 141, the present invention provides an inclined groove 263 so that the fixing rod 141 will contact the inclined surface of the inclined groove 263, so that the inclined surface of the inclined groove 263 blocks the fixing rod 141, so that the fixing rod 141 moves along During the sliding of the inclined surface of the inclined groove 263, the fixing rod 141 can be blocked by the inclined groove 263 and squeeze the fixing spring 142 into the fixing groove 14, so that the upper end surface of the fixing rod 141 slides in contact with the lower end surface of the mounting frame 2 located in the slide groove 12, until the bevel gear shaft 241 contacts the bevel gear ring 242, at which time the fixing groove 14 and the clamping groove 26 are directly opposite, so that the fixing rod 141 extends out of the fixing groove 14 and enters the clamping groove 26 under the push of the restoring force of the fixing spring 142, so that the fixing rod 141 enters the clamping groove 26. The fixing rod 141 can push the push block 261 to squeeze the air in the slot 26 into the mounting slot 22, and the fixing rod 141 inserted into the slot 26 can block the tendency of the mounting frame 2 to slide forward due to inertia through the slot wall of the slot 26, thereby reducing the impact and squeezing of the bevel gear ring 242 on the bevel gear shaft 241 caused by the mounting frame 2, reducing the squeezing damage of the bevel gear ring 242 and the bevel gear shaft 241, thereby increasing the service life of the bevel gear ring 242 and the bevel gear shaft 241;After the square pile mold is centrifugally formed, the electromagnetic ring 23 is controlled to be de-energized, so that the mounting block 221 extends out of the mounting slot 22 under the push of the restoring force of the connecting spring 222 and squeezes the gas in the mounting slot 22 into the card slot 26, so that the push block 261 in the card slot 26 pushes the fixing rod 141 to squeeze the fixing spring 142 into the fixing slot 14 under the action of the air thrust, until the fixing rod 141 completely enters the fixing slot 14, at this time, the mounting frame 2 is no longer fixed to the base 1 by the fixing rod 141, at this time, the mounting block 221 is controlled to contact with the screw rod 13, and the screw rod 13 is controlled to be fixed to the base 14. 13 rotates, so that the mounting block 221 enters the thread groove of the screw rod 13 under the push of the restoring force of the connecting spring 222, so that the screw rod 13 can drive the mounting frame 2 to move through the mounting block 221, and then the mounting frame 2 close to the driving platform 11 pushes the square pile mold away from the driving platform 11, and then the crane is connected to the square pile mold through the lifting device, and the hydraulic push rod 211 is controlled to reset. At this time, the square pile mold is lifted by the crane, and the screw rod 13 is controlled to drive the two mounting frames 2 to move away from each other, so that the crane can lift the square pile mold between the two mounting frames 2 and transport it to the maintenance workshop; When the hydraulic push rod 211 clamps the square pile mold through the clamping block 212; if there are impurities such as gravel or soil on the surface of the square pile mold, the gravel or soil and other impurities will hinder the clamping effect of the clamping block 212 on the square pile mold; in this regard, the present invention sets an air bag 121, and when the servo motor 131 drives the two mounting frames 2 to approach each other through the screw 13, the two mounting frames 2 approaching each other will squeeze the air bag 121 between them to shrink, so that the gas in the air bag 121 can enter the air cavity 27 connected to it, so that the gas entering the air cavity 27 will flow into the hose 282 through the annular groove 28 of the annular plate 21, and because the hose 282 is connected to the air hole 281, the gas in the hose 282 can be ejected through the air hole 281; due to the installation The mounting frames 2 are close to each other, so that the square pile mold continuously enters the annular plate 21, and the four clamping blocks 212 in the annular plate 21 face the four surfaces of the square pile mold. Therefore, at this time, the gas ejected from the air holes 281 of the clamping blocks 212 away from the hydraulic push rod 211 can be blown to the surroundings of the square pile mold, so that the soil or gravel adhering to the surroundings of the square pile mold can fall from the surface of the square pile mold under the blowing of the air flow, thereby preventing impurities such as gravel or soil from hindering the clamping blocks 212 from contacting the square pile mold, thereby ensuring that the clamping blocks 212 can effectively clamp the square pile mold, so as to improve the stability and firmness of the clamping, so that the square pile mold can rotate stably, thereby improving the molding quality of the hollow square pile mold; and the air inlet 122 and the one-way valve 123 are The purpose of the setting is to ensure that when the airbag 121 is squeezed, the gas in the airbag 121 can only enter the air hole 281 from the one-way valve 123 of the air cavity 27, and the external gas can only enter the airbag 121 through the one-way valve 123 of the air inlet 122, so that when the airbag 121 is squeezed, the internal gas will not be discharged from the air inlet 122, thereby ensuring the amount of gas ejected from the air hole 281 and the gas injection force, thereby improving the effect of the airflow on the soil and gravel on the surface of the square pile mold; thereby improving the ability of the clamping block 212 to effectively clamp the square pile mold, so that during the rotation of the square pile mold, the clamping block 212 can stably clamp the square pile mold, thereby improving the molding quality of the hollow square pile mold; and when the clamping block 212 is away from the hydraulic push rod 21 The strip groove 15 is provided at one end of the clamping block 212 to improve the roughness of the surface of the clamping block 212, thereby increasing the friction between the clamping block 212 and the square pile mold. Moreover, after the strip groove 15 is provided on the surface of the clamping block 212, the pressure distribution on the surface will be more concentrated, so that when the clamping block 212 clamps the square pile mold, the local pressure of the clamping part increases; the increase of such local pressure will make the contact between the clamping block and the square pile mold closer, thereby increasing the friction on the contact area; and the clamping block 212 is made of fluororubber material, so that the clamping block 212 is not only wear-resistant, but also has a certain elasticity, so that when the clamping block 212 is squeezed, it will be elastically deformed, thereby increasing the clamping effect of the clamping block 212 on the square pile mold;If the air hole 281 is provided in the strip groove 15 of the clamping block 212, when the clamping block 212 clamps the square pile mold and undergoes elastic deformation, the overall structure of the clamping block 212 will also undergo slight deformation and contraction; if the air hole 281 is provided in the strip groove 15, when the air hole 281 undergoes deformation and contraction, the gas in the air hole 281 will be directly discharged through the connected strip groove 15; if the air hole 281 is not in the strip groove 15, but in the contact portion between the clamping block 212 and the square pile mold, the gas in the air hole 281 will be unable to be effectively discharged due to compression. The air bag 121 is used to prevent impurities from entering the chute 12, so as to ensure that the screw 13 in the chute 12 is not blocked by impurities, thereby ensuring that the screw 13 and the mounting frame 2 can perform stable spiral transmission.

[0025] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A centrifugal concrete pipe pile and square pile preparation device, characterized in that: include: A base (1), wherein a driving platform (11) is fixedly mounted on the upper end of the base (1); the driving platform (11) is located at one end of the base (1); a hydraulic chuck (111) is rotatably mounted on a side of the driving platform (11) close to the base (1); The mounting frame (2) is provided with a slide groove (12) on the side wall of the base (1); a screw rod (13) is rotatably connected in the slide groove (12); the mounting frame (2) is slidably connected in the slide groove (12); the mounting frame (2) and the screw rod (13) are spirally connected; an annular plate (21) is provided between the mounting frame (2) and the base (1); the annular plate (21) is rotatably connected to the mounting frame (2); a hydraulic push rod (211) is fixedly installed on the inner wall of the annular plate (21); a clamping block (212) is fixedly connected to the end of the hydraulic push rod (211) away from the annular plate (21); a servo motor (131) is installed at the end of the base (1) close to the driving platform (11); the servo motor (131) is used to drive the screw rod (13) to rotate; a transmission unit is installed at the end of the base (1); the servo motor (131) drives the annular plate (21) to rotate through the transmission unit.

2. The centrifugal concrete pipe pile and square pile preparation equipment according to claim 1, characterized in that: The mounting frame (2) is provided with a mounting groove (22) inside; a mounting block (221) is slidably connected inside the mounting groove (22); the mounting block (221) is fixedly connected to the bottom of the mounting groove (22) via a connecting spring (222); an electromagnetic ring (23) is embedded in the bottom of the mounting groove (22); one end of the mounting block (221) away from the mounting groove (22) is connected to the screw rod (13) by helical transmission; and the threads at both ends of the screw rod (13) are arranged oppositely.

3. A centrifugal concrete pipe pile and square pile preparation device according to claim 2, characterized in that: The transmission unit comprises a bevel gear set and a worm (24); the bevel gear set comprises a bevel gear shaft (241) and a bevel gear ring (242) meshing with each other; the bevel gear shaft (241) is rotatably connected to the upper end of the base (1); the bevel gear ring (242) is fixedly connected to the annular plate (21); a cavity (243) is provided inside the base (1); the worm (24) is rotatably connected in the cavity (243); a worm wheel (244) meshing with the worm (24) is provided in the cavity (243); the worm wheel (244) is fixedly connected to the lower end of the bevel gear shaft (241); the worm (24) is connected to the screw (13) through a belt drive.

4. A centrifugal concrete pipe pile and square pile preparation device according to claim 3, characterized in that: The worm (24) and the screw (13) are both fixedly connected with a spur gear (245) at one end close to the servo motor (131); a transmission belt (25) is sleeved on the surface of the spur gear (245); a tooth groove (251) is formed on the inner ring wall of the transmission belt (25); and the transmission belt (25) is meshed with the spur gear (245) through the tooth groove (251).

5. A centrifugal concrete pipe pile and square pile preparation device according to claim 4, characterized in that: A fixing groove (14) is provided at the bottom of the slide groove (12); a fixing rod (141) is slidably sealed in the fixing groove (14); the fixing rod (141) is fixedly connected to the bottom of the fixing groove (14) via a fixing spring (142); and a clamping groove (26) matching the fixing groove (14) is provided on the lower end surface of the mounting frame (2).

6. A centrifugal concrete pipe pile and square pile preparation device according to claim 5, characterized in that: A push block (261) is slidably sealed in the card slot (26); the card slot (26) is connected to the mounting slot (22) via an air passage (262); and oblique slots (263) facing the fixing rod (141) are provided on both sides of the mounting frame (2).

7. The centrifugal concrete pipe pile and square pile preparation equipment according to claim 6, characterized in that: A strip groove (15) is formed at one end of the clamping block (212) away from the hydraulic push rod (211); the clamping block (212) is made of fluororubber material.

8. The centrifugal concrete pipe pile and square pile preparation equipment according to claim 7, characterized in that: An airbag (121) is arranged in the slide groove (12); the airbag (121) is sleeved on the surface of the screw rod (13); the airbag (121) is fixedly connected to the mounting frame (2); an air cavity (27) communicating with the airbag (121) is provided inside the mounting frame (2); an annular groove (28) communicating with the air cavity (27) is provided on one side of the annular plate (21) close to the mounting frame (2); an air hole (281) is provided at the bottom of the strip groove (15); the air hole (281) is communicated with the annular groove (28) through a hose (282); an air inlet (122) is provided on the surface of the airbag (121); and a one-way valve (123) is installed inside the air inlet (122) and the air cavity (27).

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