Amplitude variation system for deep foundation pit rotary chute device

Abstract

The invention discloses a luffing system for a rotary chute device of a deep foundation pit, which comprises a support frame fixedly arranged on two sides of an axis pump pipe along the diameter direction, a luffing groove aligned to the downstream end of the axis pump pipe, and a core pump pipe arranged below the luffing groove in a communicated manner, and the support frame is provided with a head end and a tail end; the rod piece connector is vertically arranged on the core pump pipe and extends out of the two ends of the core pump pipe, the automatic telescopic rod is hinged to the head end of the supporting frame and the upper end of the rod piece connector, the automatic telescopic rod is connected with a control box, and the two inclined supports are distributed on the two sides of the core pump pipe in the length direction and connected between the variable amplitude groove and the supporting frame. One end of the inclined support is hinged to the upstream end of the variable amplitude groove, and the other end of the inclined support is fixedly arranged at the tail end of the supporting frame. The angle of the telescopic pipe relative to the axis pump pipe can be automatically adjusted, and the material distribution device is suitable for material distribution operation of deep foundation pits with different depths and different plane sizes.

Description

Technical Field

[0001] This invention relates to the field of construction equipment, and in particular to a variable amplitude system for a rotary chute device for deep foundation pits. Background Technology

[0002] When constructing basements or other building structures within a foundation pit, a chute can be used to deliver concrete slurry from the ground into the pit for pouring the structure. A traditional deep foundation pit rotary chute consists of a hopper, a central pump pipe, a bend, and a telescopic pipe, with the telescopic pipe being the final stage. The central pump pipe rotates relative to the hopper. Because the bend is at a fixed angle, the angle of the telescopic pipe relative to the central pump pipe is also fixed, making it impossible to adjust the angle according to the construction depth. This requires stopping the delivery of concrete slurry and manually adjusting the chute's inclination angle to deliver concrete slurry to different depth areas. This method suffers from low angle adjustment efficiency and high safety risks. Summary of the Invention

[0003] The purpose of this invention is to provide a variable amplitude system for a rotary chute device for deep foundation pits, in order to solve the problems of low angle adjustment efficiency, high safety risks, and impact on the continuous delivery of concrete slurry caused by the need to stop the delivery of slurry and manually adjust the angle of the telescopic pipe relative to the axial pump pipe when transporting concrete slurry to different depth areas using traditional chutes.

[0004] To solve the above-mentioned technical problems, the technical solution provided by the present invention is: a variable amplitude system for a rotary chute device for deep foundation pits, comprising a support frame fixedly arranged on both sides of a central pump pipe along the diameter direction, the support frame having a head end and a tail end, aligned with a variable amplitude chute at the downstream end of the central pump pipe, connecting to a core pump pipe arranged below the variable amplitude chute, a rod connector vertically arranged on the core pump pipe and extending out of its two ends, an automatic telescopic rod hinged to the head end of the support frame and the upper end of the rod connector, the automatic telescopic rod being connected to a control box, and two oblique supports distributed on both sides of the core pump pipe along the length direction connecting the variable amplitude chute and the support frame, one end of the oblique support being hinged to the upstream end of the variable amplitude chute, and the other end of the oblique support being fixedly arranged at the tail end of the support frame.

[0005] Compared with the prior art, the beneficial effects of the present invention are as follows: The luffing system for a rotary chute device in deep foundation pits provided by this invention replaces the bend. Control commands are sent to the automatic telescopic rod of the luffing system via a control box. The automatic telescopic rod can automatically adjust the adjustment angle of the luffing chute relative to the axial pump pipe according to its extension length, thereby automatically adjusting the angle of the luffing chute and its connected telescopic pipe relative to the axial pump pipe, and thus changing the delivery distance of the concrete placement direction. It is suitable for concrete placement operations in deep foundation pits of different depths and planar dimensions. When conveying concrete slurry to different depth areas, the angle of the telescopic pipe relative to the axial pump pipe can be adjusted while continuously conveying the concrete slurry, without affecting the continuous delivery of the concrete slurry or the efficiency of the pouring construction. It has the advantages of good adaptability and low safety risk.

[0006] Furthermore, the luffing system for a rotary chute device in a deep foundation pit provided by the present invention includes a counterweight at the tail end of the support frame. The counterweight enables the luffing system and its directly connected or indirectly connected telescopic pipe system via an electric flow regulating valve to achieve gravity balance, thereby improving the stability of the luffing system during use and adjustment.

[0007] Furthermore, in the luffing system for a rotary chute device in a deep foundation pit provided by the present invention, the head end of the support frame is a closed structure, and the automatic telescopic rod is hinged to the center of the head end of the support frame. By hinged the automatic telescopic rod to the center of the head end of the support frame, the reliability of the connection between the automatic telescopic rod and the support frame is ensured, and the support frame provides a linear force-bearing hinge point for the automatic telescopic rod.

[0008] Furthermore, the luffing system for a rotary chute device in deep foundation pits provided by the present invention has a conical luffing chute. The conical chute can accurately receive the discharge from the central pump pipe when adjusting its angle relative to any angle.

[0009] Furthermore, in the luffing system for a rotary chute device in a deep foundation pit provided by the present invention, the upper end of the rod connector is a zigzag shape offset away from the luffing chute. By providing a zigzag shape at the upper end of the rod connector, the extension length of the automatic telescopic rod can be increased.

[0010] Furthermore, the variable amplitude system for a rotary chute device in a deep foundation pit provided by the present invention comprises two parallel and opposing bent plates tangentially welded to both sides of the core pump pipe, with fixing or hinged components connecting the upper and lower ends of the two bent plates. This type of rod connector improves its structural stability.

[0011] Furthermore, the luffing system for a rotary chute device for deep foundation pits provided by the present invention has an automatic telescopic rod that is a hydraulic cylinder.

[0012] Furthermore, the luffing system for a rotary chute device for deep foundation pits provided by the present invention has an electric telescopic rod as its automatic telescopic rod. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of an automatic slewing and amplitude-changing chute device for deep foundation pits. Figure 2 This is a schematic diagram of the main structure of an automatic slewing and amplitude-changing chute device for deep foundation pits; Figure 3 This is the control principle diagram of an automatic slewing and amplitude-changing chute device for deep foundation pits; Figure 4 This is a three-dimensional structural diagram of the rotary system; Figure 5 This is a three-dimensional structural diagram of the amplitude conversion system; Figure 6 This is a three-dimensional structural diagram of the telescopic pipe system; As shown in the figure: 100. Automatic swing-amplitude chute device for deep foundation pits; 110. Hopper; 111. Bucket; 112. Pipe; 113. Connecting frame; 114. Connecting plate; 115. Connecting rib. 120. Rotary system; 121. Shaft pump pipe; 122. Rotary support; 122a. External gear; 123. Rotary motor; 123a. Rotary gear; 123b. Gearbox. 130. Luffing system; 131. Luffing groove; 132. Core pump pipe; 133. Rod connector; 134. Automatic telescopic rod; 135. Support frame; 136. Diagonal support; 137. Counterweight. 140. Telescopic pipe system; 141. Multi-stage telescopic pump pipe; 142. Telescopic support rod; 142-1. Rod; 142-2. Cylindrical component; 143. Adapter; 150. Control box; 160. Electric flow regulating valve; 170. Material racking system; 200. Support beam. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0015] Please refer to Figures 1 to 6This invention provides an automatic slewing and luffing chute device 100 for deep foundation pits, comprising a hopper 110, a slewing system 120, a luffing system 130, a telescopic pipe system 140, and a control box 150, wherein: Hopper 110 is used for filling materials such as concrete.

[0016] The rotary system 120 includes a rotatable pump pipe 121 mounted on the downstream end of the hopper 110, a rotary support 122 with an external gear 122a sleeved on the downstream end of the hopper 110, the external gear 122a of the rotary support 122 being fixedly mounted on the upstream end of the pump pipe 121, the rotary support 122 extending horizontally out of the hopper 110, and a rotary motor 123 with a rotary gear 123a mounted vertically on the rotary support 122 parallel to the hopper 110. The rotary gear 123a of the rotary motor 123 meshes with the external gear 122a of the rotary support 122. When the rotary motor 123 starts, it drives the rotary gear 123a to rotate, which in turn drives the external gear 122a to rotate, causing the pump pipe 121 to rotate relative to the hopper 110.

[0017] To control the rotation speed stably, the rotary motor 123 of the rotary system 120 can be connected to the rotary gear 123a via a reduction gearbox 123b. The reduction gearbox 123b reduces the rotation speed, ensuring stability during the adjustment of the rotation angle of the shaft pump pipe 121 relative to the hopper 110. To control the rotation direction, the rotary motor 123 of the rotary system 120 can be a stepper motor or a rotary motor with braking function. This allows the motor to stop in any rotation direction, avoiding rotation based on inertia, avoiding manual rotation, avoiding excessive adjustment of the rotation angle, avoiding the rebound of the rotation angle caused by manual rotation, and avoiding the problem of easy disengagement of traditional locking mechanisms.

[0018] The luffing system 130 includes a support frame 131 horizontally fixed along the diameter direction on the central pump tube 121 below the slewing system 120. The support frame 131 has a head end and a tail end in the length direction, aligned with the luffing groove 132 at the downstream end of the central pump tube 121 of the slewing system 120, and connected to the core pump tube 133 below the luffing groove 132. A rod connector 133 is vertically arranged on the core pump tube 133 and extends out of its two ends. An automatic telescopic rod 135 is hinged to the head end of the support frame 131 and the upper end of the rod connector 133 of the slewing system 120. Two oblique supports 136 are distributed on both sides of the core pump tube 133 in the length direction and connected between the luffing groove 132 and the oblique support 136. One end of the oblique support 136 is hinged to the upstream end of the luffing groove 132, and the other end of the oblique support 136 is fixedly arranged at the tail end of the support frame 131. The support frame 131 is asymmetrically arranged relative to the axial pump tube 121 in the length direction, but symmetrically arranged relative to the axial pump tube in the width direction. Both the head and tail ends can be closed structures, with the tail end also being an open structure. The support frame 131 can be a clamp-type structure or a spliced ​​structure. To improve stability, the amplitude-changing groove 132 and the inclined support 136 can both be hinged to the axial pump tube 121. To more stably and reliably receive the discharge from the downstream end of the axial pump tube 121, the amplitude-changing groove 132 can be a conical groove with a large-diameter opening, allowing for precise reception of the discharge from the axial pump tube 121 at any angle relative to it. To prevent material splashing, a corrugated soft material can be used to wrap between the amplitude-changing groove 132 and the axial pump tube 121, causing the corrugation spacing of the soft material to change when the angle of the amplitude-changing groove 132 is adjusted. Both ends of the automatic telescopic rod 135 are hinged. Preferably, the automatic telescopic rod 135 is hinged to the center of the head end of the support frame 131. This hinged connection ensures the reliability of the connection between the automatic telescopic rod 135 and the support frame 131, and provides a linear force-bearing hinge point for the automatic telescopic rod 135 through the support frame 131. The automatic telescopic rod 135 can be a hydraulic cylinder or an electric telescopic rod. To increase the telescopic length of the automatic telescopic rod 135, the upper end of the rod connector 133 can be offset away from the amplitude transformer slot 132 in a zigzag shape. In this case, the rod connector 133 can be a bent plate vertically tangentially welded to both sides of the core pump pipe 131. A fixed rod or hinge rod is connected to the upper end of the two bent plates, and multiple crossbars can be connected between the two bent plates to ensure the structural stability of the rod connector 133.

[0019] The telescopic tube system 140 includes a nested multi-stage telescopic pump tube 141 connected to the downstream end of the core pump tube 133 of the luffing system 130, and a telescopic support rod 142 located below the multi-stage telescopic pump tube 141. The telescopic support rod 142 includes a rod body 142-1 and a telescopically connected cylindrical member 142-2. One end of the rod body 142-1 is hinged to the rod connector 133 of the luffing system 130, and the other end is fixedly disposed at the upstream end of the multi-stage telescopic pump tube 141 via an adapter 143. The downstream end of the cylindrical member 142-2 is supported on the final or second-final stage pump tube of the multi-stage telescopic pump tube 141. The figure illustrates a four-stage telescopic pump tube consisting of a first-stage pump tube 141-1, a second-stage pump tube 141-2, a third-stage pump tube 141-3, and a fourth-stage pump tube 141-4, which increases in size stepwise, but is not limited to four stages. In this case, the fourth-stage pump tube 141-4 is the final stage pump tube. The multi-stage telescopic pump pipe 141 is not limited to a progressively increasing size configuration, and each stage of the pump pipe is not limited to an open structure but can also be a closed structure. The adapter 143 can be bolted or welded to the first-stage pump pipe 141-1.

[0020] The control box 150 is connected to the slewing motor 123 of the slewing system 120 and to the automatic telescopic rod 135 of the luffing system 130.

[0021] Please refer to this carefully. Figures 1 to 3 The automatic slewing and luffing chute device 100 for deep foundation pits provided in this embodiment of the invention sends control commands to the slewing motor 123 of the slewing system 120 through the control box 150. The slewing motor 123 starts and rotates relative to the external gear 122a of the slewing support 122 through the slewing gear 123a, causing the shaft pump pipe 121 to rotate relative to the hopper 110. This drives the luffing system 130 and its connected telescopic pipe system 140 to rotate around the circumference, realizing the 360-degree rotation of the automatic slewing and luffing chute device 100 in the deep foundation pit to change the material feeding direction. This allows the telescopic pump system to distribute material at any position within the radiation radius, realizing all-round material distribution of the telescopic pipe system 140 within its radiation radius, increasing the coverage area of ​​the material distribution, making the material distribution more uniform, and improving the material distribution effect.

[0022] Please refer to this carefully. Figures 1 to 3The automatic slewing and luffing chute device 100 for deep foundation pits provided in this embodiment of the invention sends control commands to the automatic telescopic rod 135 of the luffing system 130 via the control box 150. The automatic telescopic rod 135 can automatically adjust the adjustment angle of the luffing chute 132 relative to the axial pump pipe 121 of the slewing system 120 according to its extension length. This achieves angle adjustment of the luffing chute 132 and its connected telescopic pipe system 140 relative to the axial pump pipe 121, changing the feeding distance of the concrete placement direction. This reduces the risk of material accumulation or segregation due to excessive feeding angles, improves the quality of concrete placement, makes the placement more uniform, and enhances the placement effect. Furthermore, it is applicable to concrete placement operations in deep foundation pits of different depths and planar dimensions, exhibiting good adaptability. Figures 1 to 2 The example illustrates the working condition of the luffing system 130 and its connected telescopic tube system 140 as they change from an obtuse angle to a right angle.

[0023] Please refer to this carefully. Figures 1 to 2 The automatic rotary chute device 100 for deep foundation pits provided in this embodiment of the invention automatically adjusts the material placement direction and delivery distance through a rotary motor 123 and an automatic telescopic rod 135, which has the advantages of high adjustment flexibility and high degree of automation. It avoids the operation of manual rotary adjustment and chute overlap to change the length, thus improving adjustment efficiency and improving material placement efficiency. It avoids the problem of difficult and inaccurate adjustment caused by workers adjusting the rotary system 120 and telescopic pipe system 140, and avoids the problem of falling from height and falling object risks when manually adjusting the telescopic pipe system 140 in dangerous areas near the edge.

[0024] Please refer to this carefully. Figure 2 The automatic slewing and luffing chute device 100 for deep foundation pits provided in this embodiment of the invention is hinged between the luffing chute 132 and the support frame 131 by an automatic telescopic rod 135. The hinge between the luffing chute 132 and the inclined support 136 ensures the stability of the luffing chute 132 and its telescopic pipe system 140 connected by the core pump pipe 133 while the angle of the luffing chute 132 relative to the axial pump pipe 121 is adjusted. This avoids the problem of falling off relative to the axial pump pipe 121, thereby ensuring the safety and stability of the whole machine.

[0025] Please refer to this carefully. Figure 1 , Figure 2 and Figure 6The automatic slewing and amplitude-changing chute device 100 for deep foundation pits provided in this embodiment of the invention uses a multi-stage telescopic pump pipe 141 of a telescopic pipe system 140. The telescopic length can be adjusted by adjusting the angle before material placement, achieving initial adjustment before material placement. The telescopic support rod 142's cylindrical component 142-2 supports the final or second-final stage pump pipe of the multi-stage telescopic pump pipe 141, thereby providing overall load-bearing capacity for the multi-stage telescopic pump pipe 141 and the material transported within it, improving the load-bearing capacity of the multi-stage telescopic pump pipe 141 and ensuring safety during material transport.

[0026] Please refer to this carefully. Figure 1 , Figure 2 and Figure 5 To achieve automatic control of material flow, the deep foundation pit automatic slewing and amplitude-changing chute device 100 provided in this embodiment of the invention further includes: The flow control system includes an electrically operated flow regulating valve 160 connected to the downstream end of the axial pump pipe 121 or connected between the core pump pipe 133 and the multi-stage telescopic pump pipe 141; the control box 150 is connected to the electrically operated flow regulating valve 160. By sending control commands to the electrically operated flow regulating valve 160 through the control box 150, the flow rate entering the telescopic pipe system 140 can be automatically adjusted.

[0027] Please refer to this carefully. Figure 2 To improve the stability of the luffing system 130, the automatic luffing chute device 100 for deep foundation pits provided in this embodiment of the invention has a counterweight 137 at the tail end of the support frame 131. The counterweight 137 enables the luffing system 130 and its directly connected or indirectly connected telescopic pipe system 140 via an electric flow regulating valve 160 to achieve gravity balance, thereby improving the stability of the luffing system 130 during use and adjustment.

[0028] The automatic slewing and luffing chute device 100 for deep foundation pits provided in this embodiment of the invention has the following material transport path for concrete slurry and other materials filled into the hopper 110: hopper 110, axial pump pipe 121, luffing chute 132, core pump pipe 133, and multi-stage telescopic pump pipe 141. When the electric flow regulating valve 160 is involved, the material transport path is: hopper 110, axial pump pipe 121, luffing chute 132, core pump pipe 133, electric flow regulating valve 160, and multi-stage telescopic pump pipe 141.

[0029] The automatic slewing and luffing chute device 100 for deep foundation pits provided in this embodiment of the invention automates the slewing, luffing and flow control of the telescopic pipe system 140.

[0030] Please refer to this carefully. Figures 1 to 2 The automatic slewing and amplitude-changing chute device 100 for deep foundation pits provided in this embodiment of the invention may further include: The material rack system 170 is mounted on the support beam 200 inside the deep foundation pit and is used to install the material hopper 110. The support beam 200 serves as a concrete or steel support for various sections of the foundation pit.

[0031] The variable amplitude system 130 in this embodiment of the invention is an improvement on the connection method of fixing the installation angle of the telescopic pipe relative to the axial pump pipe 121 through the bend. It is not only applicable to the deep foundation pit automatic rotary variable amplitude chute device 100 using the above-mentioned rotary system 120, but also applicable to the traditional deep foundation pit rotary chute device.

[0032] This invention is not limited to the specific embodiments described above. Obviously, the embodiments described above are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of this invention are within the scope of protection of this invention. Those skilled in the art can make other modifications and variations to this invention. Therefore, if these modifications and variations of this invention fall within the scope of the claims of this invention, then this invention also intends to include these modifications and variations.

Claims

1. A variable amplitude system for a rotary chute device in deep foundation pits, characterized in that, The system includes support frames fixedly mounted on both sides of a central pump tube along its diameter. Each support frame has a head end and a tail end, aligned with an amplitude-changing groove at the downstream end of the central pump tube, and connected to a core pump tube located below the amplitude-changing groove. A rod connector is vertically mounted on the core pump tube and extends from both ends thereto. An automatic telescopic rod is hinged between the head end of the support frame and the upper end of the rod connector. The automatic telescopic rod is connected to a control box. Two oblique supports are distributed on both sides of the core pump tube along its length, connecting the amplitude-changing groove and the support frame. One end of each oblique support is hinged to the upstream end of the amplitude-changing groove, and the other end is fixedly mounted on the tail end of the support frame.

2. The luffing system for a rotary chute device for deep foundation pits according to claim 1, characterized in that, A counterweight is provided at the tail end of the support frame.

3. The luffing system for a rotary chute device for deep foundation pits according to claim 1, characterized in that, The head end of the support frame is a closed structure, and the automatic telescopic rod is hinged to the center of the head end of the support frame.

4. The luffing system for a rotary chute device for deep foundation pits according to claim 1, characterized in that, The amplitude-changing groove is a conical groove.

5. The luffing system for a rotary chute device for deep foundation pits according to claim 1, characterized in that, The upper end of the rod connector is a zigzag shape that is offset away from the amplitude groove.

6. The luffing system for a rotary chute device for deep foundation pits according to claim 1, characterized in that, The rod connector consists of two parallel and opposite bent plates tangentially welded to both sides of the core pump pipe, with fixing or hinged components connecting the upper and lower ends of the two bent plates.

7. The luffing system for a rotary chute device for deep foundation pits according to claim 1, characterized in that, The automatic telescopic boom of the luffing system is a hydraulic cylinder.

8. The luffing system for a rotary chute device for deep foundation pits according to claim 1, characterized in that, The automatic telescopic boom of the luffing system is an electric telescopic boom.

Images