A 360 degree continuously rotating concrete pumping apparatus

Abstract

This invention discloses a 360-degree continuously rotating concrete pumping device, comprising: a frame, a turntable, a boom, a concrete conveying pipeline, and a pumping system. The boom is mounted on the turntable, which is connected to the frame via a slewing mechanism. The pumping system is mounted on the frame. One end of the concrete conveying pipeline is connected to the pumping system, and the other end extends through the slewing mechanism to the boom. A central slewing joint assembly is provided in the middle of the slewing mechanism, and the central slewing joint assembly is connected to the frame via a fixing plate. The central axis of the central slewing joint assembly coincides with the rotation axis of the slewing mechanism. This invention, by setting a central slewing joint assembly at the turntable, utilizes the mutual rotation of the fixed and rotating bodies, allowing the second hydraulic pipe to rotate with the turntable, avoiding the problem of hydraulic pipe entanglement. This enables the turntable to drive the boom to achieve 360-degree continuous rotation, improving the convenience of construction.

Description

Technical Field

[0001] This utility model relates to the field of concrete pumping equipment technology, and in particular to a 360-degree continuously rotating concrete pumping equipment. Background Technology

[0002] Existing concrete pumping equipment consists of multiple systems, including a chassis, slewing mechanism, turntable, and boom. The turntable is rotatably connected to the chassis via the slewing mechanism. However, the boom's luffing cylinder is connected to the hydraulic system via hydraulic hoses. When the turntable rotates, the hydraulic hoses become entangled, preventing the turntable and boom from rotating continuously 360 degrees; they can only rotate ±180 degrees, or at most ±360 degrees. Limit sensors are used to restrict this rotation. When the turntable and boom reach their limit positions, the sensors are triggered, sending a signal to the controller, which issues a limiting action command, restricting the turntable from further rotation. At this point, the turntable can only rotate in the opposite direction. This limitation severely restricts the concrete pumping equipment during construction. When construction reaches a certain point, it cannot continue rotating and must reverse 360 ​​degrees to the other side, affecting construction efficiency and operational convenience. Therefore, a concrete pumping device with continuous 360-degree rotation is needed. By using a central slewing joint, the problem of hydraulic hose entanglement can be overcome, enabling continuous 360-degree boom rotation and improving the convenience of construction. Utility Model Content

[0003] To address the aforementioned issues, this invention proposes a 360-degree continuously rotating concrete pumping device. By using a central rotary joint, the problem of hydraulic hose entanglement is overcome, enabling the boom to rotate continuously 360 degrees and improving the convenience of construction.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model proposes a 360-degree continuously rotating concrete pumping device, including: a frame, a turntable, a boom, a concrete conveying pipeline, a hydraulic system, and a pumping system. The boom is mounted on the turntable, and the turntable is connected to the frame via a slewing mechanism. The pumping system is mounted on the frame. One end of the concrete conveying pipeline is connected to the pumping system, and the other end of the concrete conveying pipeline passes through the slewing mechanism and extends to the boom. A central slewing joint assembly is provided in the middle of the slewing mechanism. The central slewing joint assembly is connected to the frame via a fixing plate. The central axis of the central slewing joint assembly coincides with the rotation axis of the slewing mechanism. The hydraulic system is mounted on the frame and is connected to the hydraulic cylinder on the boom via the central slewing joint assembly.

[0006] Furthermore, the central rotary joint assembly includes a fixed body and a rotating body. The rotating body is fitted around the periphery of the fixed body, and the lower part of the fixed body is connected to the frame via a fixed body flange and a fixed plate. The concrete conveying pipe passes through the fixed body.

[0007] Furthermore, the outer periphery of the fixing body is provided with multiple grooves along the axial direction, and the lower part of the fixing body is provided with multiple first connecting holes in a ring, and the first connecting holes are connected to the grooves one by one.

[0008] Furthermore, the outer periphery of the rotating body is provided with a second connecting hole, which is staggered on the outer periphery of the rotating body, and the second connecting hole passes through the rotating body and is connected to the groove one by one.

[0009] Furthermore, a sealing ring is provided between the grooves.

[0010] Furthermore, the rotating body is provided with a rotating body connecting block, which is connected to the turntable via a connecting rod.

[0011] Furthermore, the hydraulic system is connected to the first connection hole via a first hydraulic pipe, and the hydraulic cylinder on the boom is connected to the second connection hole via a second hydraulic pipe.

[0012] Furthermore, an engine is mounted on the upper part of the frame, and the engine is connected to the pumping system and the hydraulic system via a drive shaft.

[0013] Furthermore, the lower part of the vehicle frame is equipped with a tracked chassis, and the drive wheels of the tracked chassis are connected to the engine.

[0014] The beneficial effects of this utility model are as follows: By setting a central rotary joint assembly at the turntable, the fixed body and the rotating body can rotate relative to each other, so that the second hydraulic pipe can rotate with the turntable, avoiding the problem of hydraulic pipe entanglement. This allows the turntable to drive the boom to achieve 360-degree continuous rotation, improving the convenience of construction. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the turntable of this utility model;

[0017] Figure 3 This is a schematic diagram of the installation of the rotary joint assembly in this practical center;

[0018] Figure 4 This is a schematic diagram of the structure of the central rotary joint assembly of this utility model;

[0019] Figure 5 This is a schematic diagram showing the distribution of the first connecting holes of this utility model;

[0020] In the diagram: 1-Chassis, 2-Turntable, 3-Boom, 4-Concrete delivery pipe, 5-Hydraulic system, 6-Pumping system, 7-Slewing mechanism, 8-Central slewing joint assembly, 9-Fixed body, 10-Rotating body, 11-Fixed body flange, 12-Fixed plate, 13-Groove, 14-First connecting hole, 15-Second connecting hole, 16-Rotating body connecting block, 17-First hydraulic pipe, 18-Second hydraulic pipe, 19-Engine, 20-Crawler chassis. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Throughout the description, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0024] like Figures 1 to 5As shown, one embodiment of this utility model provides a 360-degree continuously rotating concrete pumping device, including: a frame 1, a turntable 2, a boom 3, a concrete conveying pipe 4, a hydraulic system 5, and a pumping system 6. The boom 3 is mounted on the turntable 2, and the turntable 2 is connected to the frame 1 through a slewing mechanism 7. The pumping system 6 is mounted on the frame 1. One end of the concrete conveying pipe 4 is connected to the pumping system 6, and the other end of the concrete conveying pipe 4 passes through the slewing mechanism 7 and extends to the boom 3. A central slewing joint assembly 8 is provided in the middle of the slewing mechanism 7. The central slewing joint assembly 8 is connected to the frame 1 through a fixing plate 12. The central axis of the central slewing joint assembly 8 coincides with the rotation axis of the slewing mechanism 7. The hydraulic system 5 is mounted on the frame 1 and is connected to the hydraulic cylinder on the boom 3 through the central slewing joint assembly 8.

[0025] When the boom 3 needs to be extended, the hydraulic cylinders on the boom 3 are extended by controlling the valves on the hydraulic system 5, so that the end of the boom 3 extends above the construction position to be poured. After the concrete mixer truck pours the concrete into the hopper of the pumping system 6, it is delivered to the pouring position through the concrete conveying pipe 4 by the mud pump. As the construction progresses, the pouring position needs to be adjusted. The boom 3 and the turntable 2 can rotate under the drive of the slewing mechanism 7. When the turntable 2 rotates, the connecting rod drives the rotating body connecting block 16 and the rotating body 10 to rotate together, avoiding the second hydraulic pipe 18 from getting tangled on the concrete conveying pipe 4. This allows the turntable 2 to rotate continuously, improving the coverage of the boom 3 and increasing the efficiency of construction.

[0026] In a preferred embodiment, such as Figure 3 , Figure 4 As shown, the central rotary joint assembly 8 includes a fixed body 9 and a rotating body 10. The rotating body 10 is fitted around the outer periphery of the fixed body 9. The lower part of the fixed body 9 is connected to the frame 1 through the fixed body flange 11 and the fixed plate 12. The concrete conveying pipe 4 passes through the fixed body 9. The rotating body 10 can rotate on the fixed body 9, so that the second hydraulic pipe 18 can rotate synchronously with the turntable 2, thus solving the problem of the second hydraulic pipe 18 getting tangled in the concrete conveying pipe 4.

[0027] In a preferred embodiment, such as Figure 4 , Figure 5As shown, the outer periphery of the fixed body 9 is provided with multiple grooves 13 along the axial direction. The lower part of the fixed body 9 is provided with multiple first connecting holes 14 in a ring. The first connecting holes 14 are connected to the grooves 13 one by one. While the central rotary joint assembly 8 is rotating, it also needs to send the hydraulic oil generated by the hydraulic system 5 to the corresponding hydraulic cylinder through the second hydraulic pipe 18. The hydraulic oil enters the grooves 13 through the first connecting holes 14. Since the grooves 13 are blocked by the inner wall of the rotating body 10 and the fixed body 9, they can only flow out from the second connecting holes 15. The central rotary joint assembly 8 can rotate while maintaining the normal delivery of hydraulic oil.

[0028] In one specific embodiment, the rotating body 10 is provided with a second connecting hole 15 on its outer periphery. The second connecting holes 15 are staggered on the outer periphery of the rotating body 10, and the second connecting holes 15 pass through the rotating body 10 and are connected to the grooves 13 one by one. The central rotary joint assembly 8 can realize the rotational connection of multiple oil circuits. The first connecting hole 14 and the second connecting hole 15 are marked with numbers so that they can be connected one by one during connection. After the hydraulic oil flows from the first connecting hole 14 into the corresponding groove 13, the groove 13 is blocked by the fixed body 9 and the rotating body 10, forming a sealed annular cavity. At this time, the hydraulic oil can only flow out from the second connecting hole 15 connected by the groove 13, realizing the transmission of hydraulic oil. The groove 13 is annular, that is, when the rotating body 10 rotates to any angle, the hydraulic oil in the groove 13 can flow out from the second connecting hole 15 connected to it.

[0029] In one specific embodiment, a sealing ring is provided between the grooves 13. The sealing ring is fitted into the gap between the fixed body 9 and the rotating body 10. The sealing ring can seal the gap between the fixed body 9 and the rotating body 10, preventing hydraulic oil from flowing out of the gap and affecting the operation of other oil circuits. This achieves rotation while improving sealing.

[0030] In a preferred embodiment, such as Figure 4 As shown, the rotating body 10 is provided with a rotating body connecting block 16. The rotating body connecting block 16 is connected to the turntable 2 through a connecting rod. When the turntable 2 rotates under the drive of the rotary mechanism 7, it can drive the rotating body 10 to rotate through the connecting rod and the rotating body connecting block 16, so as to realize the synchronous rotation of the rotating body 10 and the turntable 2.

[0031] In a preferred embodiment, the hydraulic system 5 is connected to the first connection hole 14 via the first hydraulic pipe 17, and the hydraulic cylinder on the boom 3 is connected to the second connection hole 15 via the second hydraulic pipe 18. The oil circuit is transmitted through the first hydraulic pipe 17 and the second hydraulic pipe 18, so that the high-pressure hydraulic oil generated by the hydraulic system 5 can be sent to the hydraulic cylinder on the boom 3, so that the hydraulic cylinder can be extended and the boom 3 can be extended.

[0032] Preferably, such as Figure 1As shown, an engine 19 is mounted on the upper part of the frame 1. The engine 19 is connected to the pumping system 6 and the hydraulic system 5 through the drive shaft. The engine 19 is the power source. Through the clutch, gearbox and other devices, the power is sent to the pumping system 6 and the hydraulic system 5 through the drive shaft for the operation of pumping concrete.

[0033] In a preferred embodiment, a tracked chassis 20 is provided at the lower part of the frame 1. The drive wheels of the tracked chassis 20 are connected to the engine 19, enabling the entire device to move under the drive of the engine 19 and the tracked chassis 20. Of course, this utility model can have many other embodiments. Based on this embodiment, other embodiments obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A 360 degree continuously rotating concrete pumping apparatus, characterized in that, include: The vehicle includes a frame (1), a turntable (2), a boom (3), a concrete conveying pipe (4), a hydraulic system (5), and a pumping system (6). The boom (3) is mounted on the turntable (2), which is connected to the frame (1) via a slewing mechanism (7). The pumping system (6) is mounted on the frame (1). One end of the concrete conveying pipe (4) is connected to the pumping system (6), and the other end of the concrete conveying pipe (4) extends through the slewing mechanism (7) to the boom (3). The slewing mechanism (7) has a central slewing joint assembly (8) in the middle, which is connected to the frame (1) via a fixing plate (12). The central axis of the central slewing joint assembly (8) coincides with the rotation axis of the slewing mechanism (7). The hydraulic system (5) is mounted on the frame (1) and is connected to the hydraulic cylinder on the boom (3) via the central slewing joint assembly (8).

2. A 360 degree continuous rotation concrete pumping apparatus as claimed in claim 1, wherein, The central rotary joint assembly (8) includes a fixed body (9) and a rotating body (10). The rotating body (10) is fitted around the outer periphery of the fixed body (9). The lower part of the fixed body (9) is connected to the frame (1) through the fixed body flange (11) and the fixed plate (12). The concrete conveying pipe (4) passes through the fixed body (9).

3. A 360 degree continuous rotation concrete pumping apparatus as claimed in claim 2, wherein, The outer periphery of the fixing body (9) is provided with multiple grooves (13) along the axial direction, and the lower part of the fixing body (9) is provided with multiple first connecting holes (14), which are connected to the grooves (13) one by one.

4. A 360 degree continuous rotation concrete pumping apparatus as claimed in claim 3, wherein, The rotating body (10) is provided with a second connecting hole (15) on its outer periphery. The second connecting holes (15) are arranged alternately on the outer periphery of the rotating body (10), and the second connecting holes (15) pass through the rotating body (10) and are connected to the grooves (13) one by one.

5. A 360 degree continuous rotation concrete pumping apparatus as claimed in claim 4, wherein, A sealing ring is provided between the grooves (13).

6. A 360 degree continuous rotation concrete pumping apparatus as claimed in claim 5, wherein, The rotating body (10) is provided with a rotating body connecting block (16), which is connected to the turntable (2) through a connecting rod.

7. A 360 degree continuous rotation concrete pumping apparatus as claimed in claim 6, wherein, The hydraulic system (5) is connected to the first connection hole (14) through the first hydraulic pipe (17), and the hydraulic cylinder on the boom (3) is connected to the second connection hole (15) through the second hydraulic pipe (18).

8. A 360 degree continuous rotation concrete pumping apparatus as claimed in claim 1, wherein, An engine (19) is mounted on the upper part of the frame (1), and the engine (19) is connected to the pumping system (6) and the hydraulic system (5) via a drive shaft.

9. A 360 degree continuous rotation concrete pumping apparatus as claimed in claim 8, wherein, The chassis (1) is provided with a tracked chassis (20) at the bottom, and the drive wheels of the tracked chassis (20) are connected to the engine (19).

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