Automatic rotary amplitude-changing chute device for deep foundation pit

Abstract

The invention discloses an automatic rotary amplitude-changing chute device for a deep foundation pit. The automatic rotary amplitude-changing chute device comprises a hopper, a rotary system, an amplitude-changing system, a telescopic pipe system and a control box, wherein the rotary system comprises an axis pump pipe, a rotary support with an outer gear and a rotary motor with a rotary gear; wherein the amplitude variation system comprises a supporting frame, an amplitude variation groove, a core pump pipe, a rod piece connector, an automatic telescopic rod and an inclined support; wherein the telescopic pipe system comprises a multi-stage telescopic pump pipe and a telescopic supporting rod; and the control box is connected with the rotary motor and the automatic telescopic rod. The rotary system can drive the pipe stretching system to rotate in the circumferential direction so as to distribute materials in any direction within the radiation radius range of the pipe stretching system, and the variable amplitude system can adjust the included angle of the telescopic pipe system relative to the axis pump pipe and change the delivery distance in the material distribution direction. The device can be suitable for material distribution operation of deep foundation pits with different depths and different plane sizes, and has the advantages of being large in material distribution coverage area and good in adaptability.

Description

Technical Field

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

[0002] In deep foundation pit construction, the vertical and horizontal transport of materials such as concrete is a crucial process. Traditional chutes are mostly fixed or simply hinged, and have the following typical drawbacks: 1. It has poor flexibility, limited range of adjustment for delivery direction and angle, requires frequent manual movement or chute connection, resulting in low construction efficiency and inability to achieve full coverage of material placement in the foundation pit.

[0003] 2. The level of automation is low. Material flow rate and delivery distance mainly rely on worker experience for control, resulting in poor precision and a tendency for material to accumulate or segregate, affecting construction quality.

[0004] 3. High safety risks. When working at the edge of a deep foundation pit, personnel must be close to the dangerous area near the edge to make adjustments, posing a risk of falls from height and being struck by falling objects. Additionally, the chute lacks stability and is prone to swaying or overturning under load.

[0005] 4. Limited adaptability. It is difficult to adapt to foundation pits of different depths and planar dimensions, and cannot effectively meet the requirements for amplitude (i.e., angle adjustment). Summary of the Invention

[0006] The purpose of this invention is to provide an automatic slewing and amplitude-changing chute device for deep foundation pits, so as to solve the problems of poor flexibility, low degree of automation, high safety risk and weak adaptability of traditional chute slewing and amplitude adjustment.

[0007] To solve the above-mentioned technical problems, the technical solution provided by the present invention is: an automatic slewing and amplitude-changing chute device for deep foundation pits, comprising: hopper; The rotary system includes a rotatable pump tube mounted on the downstream end of the hopper, a rotary support with an external gear mounted on the downstream end of the hopper, the external gear of the rotary support being fixedly mounted on the upstream end of the pump tube, the rotary support extending horizontally out of the hopper, and a rotary motor with a rotary gear mounted vertically on the rotary support parallel to the hopper, the rotary gear of the rotary motor meshing with the external gear of the rotary support; The luffing system includes a support frame horizontally fixed on both sides of the central pump tube along the diameter direction below the slewing system. The support frame has a head end and a tail end, aligned with the luffing groove at the downstream end of the central pump tube of the slewing system, and connected to the core pump tube below the luffing groove. A rod connector is vertically mounted on the core pump tube and extends out of its two ends. An automatic telescopic rod is hinged to the head end of the support frame and the upper end of the rod connector. Two oblique supports are distributed on both sides of the core pump tube along the length direction and connected between the luffing groove and the support frame. One end of the oblique support is hinged to the upstream end of the luffing groove, and the other end of the oblique support is fixedly mounted on the tail end of the support frame. The telescopic tube system includes a nested multi-stage telescopic pump tube connected to the downstream end of the core pump tube of the luffing system, and a telescopic support rod located below the multi-stage telescopic pump tube. The telescopic support rod includes a rod body and a telescopically connected cylindrical component. One end of the rod body is hinged to the rod connector of the luffing system, and the other end is fixedly installed at the upstream end of the multi-stage telescopic pump tube through an adapter. The downstream end of the cylindrical component is supported on the last stage or the second-last stage of the multi-stage telescopic pump tube. The control box is connected to the slewing motor of the slewing system and to the automatic telescopic boom of the luffing system.

[0008] Furthermore, the automatic slewing and amplitude-changing chute device for deep foundation pits provided by the present invention also includes: The flow control system includes an electrically operated flow regulating valve connected to the downstream end of the axial pump pipe or connected between the core pump pipe and the multi-stage telescopic pump pipe; the control box is connected to the electrically operated flow regulating valve.

[0009] Furthermore, the automatic slewing and amplitude-changing chute device for deep foundation pits provided by the present invention also includes: The material rack system is installed on the support beams inside the deep foundation pit and is used to install the material hoppers.

[0010] Furthermore, the deep foundation pit automatic slewing and luffing chute device provided by the present invention includes a telescopic support rod located below the multi-stage telescopic pump pipe. The telescopic support rod includes a rod body and a telescopically connected cylindrical component. One end of the rod body is hinged to the rod connector of the luffing system, and the other end is fixedly installed at the upstream end of the multi-stage telescopic pump pipe through an adapter. The downstream end of the cylindrical component is supported on the last stage or the second-last stage of the multi-stage telescopic pump pipe.

[0011] Furthermore, in the deep foundation pit automatic slewing amplitude chute device provided by the present invention, the slewing motor of the slewing system is connected to the slewing gear through a reduction gearbox.

[0012] Furthermore, in the deep foundation pit automatic slewing amplitude chute device provided by the present invention, the slewing motor of the slewing system is a stepper motor or a slewing motor with braking function.

[0013] Furthermore, in the deep foundation pit automatic slewing luffing chute device provided by the present invention, a counterweight is provided at the tail end of the support frame of the luffing system.

[0014] Furthermore, in the deep foundation pit automatic slewing luffing chute device provided by the present invention, the automatic telescopic rod of the luffing system is a hydraulic cylinder or an electric telescopic rod.

[0015] Furthermore, in the deep foundation pit automatic slewing chute device provided by the present invention, the slewing chute of the slewing system is a conical chute.

[0016] Compared with the prior art, the beneficial effects of the automatic slewing and amplitude-changing chute device for deep foundation pits provided by the present invention are as follows: The control box sends control commands to the slewing motor of the slewing system. The slewing motor starts and rotates relative to the external gear of the slewing support through the slewing gear, causing the shaft pump pipe to rotate relative to the hopper. This drives the luffing system and its connected telescopic pipe system to rotate around the circumference, realizing the 360-degree rotation of the automatic slewing luffing chute device in the deep foundation pit. This changes the material feeding direction of the telescopic pipe system, allowing it to distribute material in any direction within its radiation radius. This achieves omnidirectional material distribution within the radiation radius of the telescopic pipe system, increasing the coverage area, making the distribution more uniform, and improving the distribution effect. Compared with manual adjustment of the slewing angle, it has the advantages of saving time and labor, and high adjustment efficiency, realizing the automatic adjustment of the material feeding direction.

[0017] Control commands are sent to the automatic telescopic boom of the luffing system via the control box. The automatic telescopic boom can automatically adjust the adjustment angle of the luffing trough relative to the axial pump pipe of the slewing system according to its telescopic length. This automatically adjusts the angle of the luffing trough and its connected telescopic pipe system relative to the axial pump pipe, thereby changing the delivery distance of the concrete placement direction. This reduces the risk of material accumulation or segregation caused by excessive delivery angles, improving the quality and uniformity of the concrete placement, and enhancing the placement effect. It is also suitable for concrete placement operations in deep foundation pits of different depths and planar dimensions. When delivering concrete slurry to areas of different depths, the angle of the telescopic pipe relative to the axial pump pipe can be adjusted while continuously delivering 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.

[0018] The automatic adjustment of the fabric direction and delivery distance via a rotary motor and an automatic telescopic rod offers advantages such as high flexibility and automation. It eliminates the need for manual rotary adjustment and length changes via overlapping chutes, thus improving adjustment efficiency and fabric delivery. Furthermore, it avoids the difficulties and inaccuracies associated with manual adjustments of the rotary and telescopic systems by workers, and eliminates the risks of falls from heights and falling objects associated with manually adjusting the telescopic length near dangerous edges.

[0019] By automatically extending the telescopic rod and hinged between the luffing trough and the support frame, and by hinged between the luffing trough and the inclined support, the stability of the luffing trough and its telescopic tube system connected to the core pump tube is ensured while the angle of the luffing trough relative to the shaft pump tube is adjusted. This avoids the problem of falling off relative to the shaft pump tube, thus ensuring the safety and stability of the whole machine.

[0020] The multi-stage telescopic pump pipe system allows for adjustment of the telescopic length before material distribution by adjusting the angle, enabling initial adjustment before distribution. The telescopic support rods, supported by the final or second-to-last stage pump pipe, provide overall load-bearing for the multi-stage telescopic pump pipe and the material being transported within it. This improves the load-bearing capacity of the multi-stage telescopic pump pipe and ensures safety during material transport. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of an automatic rotary amplitude-changing chute device for deep foundation pits. Figure 2 This is a schematic diagram of the main structure of an automatic rotary amplitude 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; Figure 7 This is a three-dimensional structural diagram of the material rack system and support beams in a dismantled state; Figure 8 This is a three-dimensional structural diagram of the material rack system and support beams in the installation state; Figure 9 This is a three-dimensional structural diagram of the hopper being installed on the support beam via a material rack 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. Support frame; 132. Luffing groove; 133. Core pump pipe; 134. Rod connector; 135. Automatic telescopic rod; 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 rack system; 171. Upper support beam; 171a. Ear hole; 171b. End plate; 172. Lower support beam; 173. Vertical support rod; 174. Horizontal support rod; 175. Diagonal support rod; 176. Bolt; 176a. Four-corner bolt; 176b. Nut; 177. Tie rod; 178. C-shaped base; 178a. Square hole; 178b. Strip hole; 179. Box frame; 200. Support beam. Detailed Implementation

[0022] 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.

[0023] Please refer to Figures 1 to 6 This 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] Please refer to this carefully. Figures 7 to 9 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.

[0039] The material rack system 170 consists of a vertical frame composed of multiple vertical support rods 173 and multiple horizontal support rods 174, and a T-shaped frame composed of the vertical frame and multiple upper support beams 171. The vertical frame can be composed of two vertical support rods 173 and three horizontal support rods 174. Lower support beams 172 are located on the vertical support members 173 of the vertical frame of the T-shaped frame on the same side. The lower support beams 172 are parallel to and aligned with the upper support beams 171. Tie rods 177 are connected between the upper support beams 171 and the lower support beams 172 by bolts 176. The lower support beams 172 and the upper support beams 171 on the same side and the vertical frame form a hoop for installation on the support beam 200. A hopper mounting base 178 is connected between the two upper support beams 171 on the opposite side of the lower support beams 172. The hopper mounting base 178 and the upper support beams 171 on the same side form a hopper mounting frame for installing the hopper 110.

[0040] The automatic rotary chute device 100 for deep foundation pits provided in this embodiment of the invention detachably connects the material rack system 170 to the support beam 200 via ring clamps. This ring clamp connection avoids drilling into the support beam 200 and installing expansion bolts or other anchoring components, thus preserving the structural strength of the support beam 200 and maintaining its support effect. The hoppers 110 of each level of the deep foundation pit chute are installed on hopper mounting frames and then clamped onto the support beam 200 via the material rack system 170. This achieves suspended installation of the hoppers 110 and the support beam 200, eliminating the need for drilling, expansion bolts, or other anchoring components, thus avoiding anchoring connections. Furthermore, the hoppers do not need to be suspended between two trestle planks, ensuring unobstructed passage on the trestle. The absence of gaps between the two trestle planks during construction also ensures safe passage on the trestle.

[0041] To achieve the connection of the tie rod 177 to the corresponding upper support beam 171 and lower support beam 172, the deep pit automatic slewing and luffing chute device 100 provided in this embodiment of the invention includes a material rack system 170. Both the upper support beam 171 and the lower support beam 172 are H-beams or channel steel. The lower support beam 173 and the ends of the upper support beam 171 on its side are welded with end plates 171b. The bolts 176 include a four-corner screw 176a and a nut 176b threaded onto it. The four-corner screw 176a can be positioned between the upper and lower flanges and the web of the H-beam or channel steel, penetrating the end plate 171b. Tightening the nut 176b connects the tie rod 177 to the end plate 171b. The use of the four-corner screw 176a, which can be positioned between the upper and lower flanges and the web of the H-beam or channel steel, provides the advantage of stable assembly.

[0042] To ensure stable connections between the upper support beams 171 and the lower support beams 172, the automatic slewing and amplitude-changing chute device 100 for deep foundation pits provided in this embodiment of the invention includes a material rack system 170. Transverse support members 174 connect the ends of adjacent lower support beams 172 and the ends of the upper support beams 171 on their respective sides. Diagonal support members 175 connect the lower support beams 172 and the upper support beams 171 on their respective sides to their corresponding transverse support members 174. Thus, the structural stability is improved by adding transverse support members 174 and diagonal support members 175 between the upper support beams 171 and the lower support beams 172.

[0043] To improve the versatility of the installation of the support beam 200, the automatic rotary chute device 100 for deep foundation pits provided in this embodiment of the invention includes a material rack system 170 in which the lower support beam 172 is adjustablely mounted on the vertical support rod 174, and the corresponding tie rod 177 is an adjustable rod. By adjusting the distance between the lower support beam 172 and the upper support beam 171, and by adjusting the length of the tie rod 177, different openings at the top and bottom of the rings can be formed to accommodate support beams 200 of different thicknesses, thus improving the applicability to the support beam 200. The adjustable rod can be formed by connecting two steel sections with threaded rods, and the ends of the steel sections are provided with ear plates. Because the main body of this type of adjustable rod is made of H-beams or channel steel, it can increase the contact surface with the support beam 200, improving the reliability and stability of the material rack system 170 installed on the support beam 200.

[0044] To improve the stability of the hopper 110 installation, the deep pit automatic slewing chute device 100 provided in this embodiment of the invention includes a hopper mounting base 178 in the material rack system 170. The C-shaped plate is connected between the vertical frame and two upper support beams 171. A square hole 178a is provided between the C-shaped plate and the vertical support rod 173. A strip hole 178b is opened inward from the arc-shaped edge of the C-shaped plate towards its end face. The C-shaped plate can consist of two pieces, upper and lower. Laterally penetrating ear holes 171a are provided at the intersection of the upper support beam 171 and the vertical support rod 173, as well as at one end of the upper support beam 171 on the side where the hopper mounting base 178 is installed.

[0045] The hopper 110 includes a material barrel 111, a material pipe 112, a connecting frame 113, a connecting plate 114, and a connecting rib 115. The material pipe 112 is connected to the lower end of the material barrel 111, and the connecting frame 113 is horizontally connected to the upper end of the material barrel 111. The connecting frame 113 extends horizontally outward from the material barrel 111, and the shape of the horizontally extending connecting frame 113 matches that of the hopper mounting base 178. The connecting frame 113 is supported and installed on the hopper mounting base 178 to bear the weight of the hopper 110. The connecting frame 113 is provided with a connecting plate 114 for passing through the square hole 178a. The connecting frame 113 is also provided with an ear plate for aligning with the ear hole 178a. The connecting frame 113 and the extended rotary support 122 are vertically connected as one unit through the connecting plate 113 and the connecting rib 115 to improve the stability of the connection between the hopper 110 and the rotary system 120. The connecting ribs 115 are connected to the material barrel 111, the material pipe 112, and the slewing support 122, and there are multiple connecting ribs 115. The slewing support 122 has a protective shell that encloses the external gear 122a and the slewing gear 123a.

[0046] During installation, the hopper 110 is placed vertically within the opening of the hopper mounting base 178 and the upper support beam 171. The hopper 110 is supported by the connecting frame 113 and mounted on the hopper mounting base 178. The connecting frame 113, with its vertically downward-facing lugs aligned with the lug holes 171a of the upper support beam 171, and the connecting plate 114 inserted into the slotted hole 178b, achieves the positioning and installation of the hopper 110. Fasteners are then used to suspend the hopper 110 on the rack system 170 through the connecting frame 113 and the upper support beam 171. After installation, the hopper 110 is detachably connected to the upper support beam 171 via the connecting frame 113 and fasteners, and bears the load by abutting against the hopper mounting base 178 through the connecting frame 113. Preferably, the connecting plate 114 can also be connected to the vertical frame by fasteners to improve the stability of the connection to the hopper 110.

[0047] To assemble structural components such as the control box 150, auxiliary tools, and materials, the deep pit automatic slewing and luffing chute device 100 provided in this embodiment of the invention includes a material rack system 170. The plane of each upper support beam 171 located on the opposite side of the lower support beam 172 and its corresponding vertical support rod 173 is formed by horizontal support rods 174 and diagonal support rods 175. Each side of the side frame is externally connected to a box frame 179. At least one box frame 179 is used to place the control box 150. Multiple diagonal support rods 175 of the side frame can be cross-connected to improve the stability of the side frame. The box frame 179 consists of a platform plate and railings.

[0048] 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. An automatic slewing and amplitude-changing chute device for deep foundation pits, characterized in that, include: hopper; The rotary system includes a rotatable pump tube mounted on the downstream end of the hopper, a rotary support with an external gear mounted on the downstream end of the hopper, the external gear of the rotary support being fixedly mounted on the upstream end of the pump tube, the rotary support extending horizontally out of the hopper, and a rotary motor with a rotary gear mounted vertically on the rotary support parallel to the hopper, the rotary gear of the rotary motor meshing with the external gear of the rotary support; The luffing system includes a support frame horizontally fixed on both sides of the central pump tube along the diameter direction below the slewing system. The support frame has a head end and a tail end, aligned with the luffing groove at the downstream end of the central pump tube of the slewing system, and connected to the core pump tube below the luffing groove. A rod connector is vertically mounted on the core pump tube and extends out of its two ends. An automatic telescopic rod is hinged to the head end of the support frame and the upper end of the rod connector. Two oblique supports are distributed on both sides of the core pump tube along the length direction and connected between the luffing groove and the support frame. One end of the oblique support is hinged to the upstream end of the luffing groove, and the other end of the oblique support is fixedly mounted on the tail end of the support frame. The telescopic tube system includes nested multi-stage telescopic pump tubes connected to the downstream end of the core pump tube of the luffing system; The control box is connected to the slewing motor of the slewing system and to the automatic telescopic boom of the luffing system.

2. The automatic slewing and amplitude-changing chute device for deep foundation pits according to claim 1, characterized in that, Also includes: The flow control system includes an electrically operated flow regulating valve connected to the downstream end of the axial pump pipe or connected between the core pump pipe and the multi-stage telescopic pump pipe; the control box is connected to the electrically operated flow regulating valve.

3. The automatic slewing and amplitude-changing chute device for deep foundation pits according to claim 1, characterized in that, Also includes: The material rack system is installed on the support beams inside the deep foundation pit and is used to install the material hoppers.

4. The automatic slewing and amplitude-changing chute device for deep foundation pits according to claim 1, characterized in that, The telescopic pipe system also includes a telescopic support rod located below the multi-stage telescopic pump pipe. The telescopic support rod includes a rod body and a telescopically connected cylindrical component. One end of the rod body is hinged to the rod connector of the amplitude-changing system, and the other end is fixedly installed at the upstream end of the multi-stage telescopic pump pipe through an adapter. The downstream end of the cylindrical component is supported on the final stage or the second final stage of the multi-stage telescopic pump pipe.

5. The automatic slewing and amplitude-changing chute device for deep foundation pits according to claim 1, characterized in that, The rotary motor of the rotary system is connected to the rotary gear via a reduction gearbox.

6. The automatic slewing and amplitude-changing chute device for deep foundation pits according to claim 1, characterized in that, The rotary motor of the rotary system is a stepper motor or a rotary motor with braking function.

7. The automatic slewing and amplitude-changing 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 of the luffing system.

8. The automatic slewing and amplitude-changing chute device for deep foundation pits according to claim 1, characterized in that, The automatic telescopic boom of the luffing system is either a hydraulic cylinder or an electric telescopic boom.

9. The automatic slewing and amplitude-changing chute device for deep foundation pits according to claim 1, characterized in that, The amplitude-changing groove of the amplitude-changing system is a conical groove.

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