A twin-rotation concrete distributing machine

Abstract

The utility model discloses a double rotary's concrete distributing machine, including frame, guide pillar, first rotary drive, second rotary drive, pumping hard pipe and pumping hose, first rotary drive, second rotary drive all are established on the frame, and the guide pillar is connected on the rotary output end of first rotary drive, pumping hard pipe is fixed and established on the frame, and the first end of pumping hose is linked with pumping hard pipe and can relatively rotate, and the second end of pumping hose is linked with the guide pillar, and the rotary output end of second rotary drive is linked with the first end of pumping hose. The utility model relates to the field of concrete pouring, can drive the first end of pumping hose relatively pumping hard pipe rotation in the process of the second end of pumping hose following the guide pillar rotation, not only avoided the problem of jamming caused by the relative rotation of hard pipeline and pumping hose connection place is not smooth, also can ensure that pumping hose itself has no any distortion or relative rotation, effectively prolongs the service life of pumping hose.

Description

Technical Field

[0001] This utility model relates to the field of concrete pouring technology, specifically a double-rotating concrete placing machine. Background Technology

[0002] In a trolley-type concrete casting system, a concrete placing boom is typically installed on the lining trolley to cast concrete at different locations. Existing technologies (such as CN206928953U) use a concrete placing boom whose piping system mainly consists of a rigid pipe feed assembly, a pumping hose connection assembly, and a discharge port. One end of the pumping hose is connected to the rigid pipe via a pipe clamp and a sealing ring; this connection structure is designed to form a simple rotating device, allowing relative rotation between the pumping hose and the rigid pipe. The other end of the pumping hose is connected to the discharge port on a telescopic rotating device via a pipe clamp and a sealing ring. Theoretically, when the telescopic rotating device drives the discharge port to rotate, it will cause one end of the pumping hose to rotate, which in turn causes the other end connected to the rigid pipe to rotate relative to it, thereby adjusting the final position of the discharge port and coordinating with the longitudinal movement of the concrete placing boom to complete the casting at different locations.

[0003] However, although the rigid pipe and pumping hose in the above structure are designed to rotate relative to each other, the rotational connection structure (pipe clamp and sealing ring) experiences significant resistance and uneven movement during actual operation. Furthermore, the rotary drive only rotates the guide column, which in turn rotates one end of the pumping hose, leaving the other end without any driving force. This results in frequent jamming at the connection point between the other end of the pumping hose and the rigid pipe. This jamming makes smooth relative rotation between the rigid pipe and the pumping hose difficult, effectively creating a near-rigid connection. When the telescopic rotation device drives the guide column and its outlet to rotate, this rigidity forces the pumping hose to undergo severe torsional deformation, rather than the intended smooth relative rotation at the connection point. This continuous and unexpected torsional deformation severely exacerbates wear and fatigue of the pumping hose, significantly shortening its service life and increasing equipment maintenance costs and downtime risks. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a double-rotating concrete placing boom that can effectively prevent the pumping hose from twisting and deforming during rotation, thus extending its service life.

[0005] To achieve the above objectives, this utility model provides a double-rotation concrete placing boom, including a frame, guide columns, a first rotation drive, a second rotation drive, a pumping rigid pipe and a pumping flexible pipe. The first rotation drive and the second rotation drive are both mounted on the frame, and the guide columns are connected to the rotation output end of the first rotation drive. The pumping rigid pipe is fixed on the frame, and the first end of the pumping flexible hose is rotatably connected to the pumping rigid pipe through the second rotary drive. The second end of the pumping flexible hose is connected to the guide post.

[0006] In one embodiment, the rotary output end of the second rotary drive is connected to the first end of the pumping hose.

[0007] In one embodiment, the first end of the pumping hose passes through the central through-hole of the second rotary drive and is connected to the pumping rigid pipe.

[0008] In one embodiment, a connecting flange is fixedly fitted onto the pumping hose, and the connecting flange is connected to the rotary output end of the second rotary drive.

[0009] In one embodiment, the first end of the pumping hose is connected to the pumping rigid pipe via a pipe clamp and a sealing ring.

[0010] In one embodiment, the first rotary drive is located at a first end of the top of the frame, and the second rotary drive is located at a position near a second end of the top of the frame.

[0011] In one embodiment, the first rotary drive is connected to the frame via a first mounting base.

[0012] In one embodiment, the second rotary drive is connected to the frame via a second mounting base.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects: This invention incorporates a first rotary drive and a second rotary drive. The first rotary drive drives the guide column to rotate, thereby connecting the second end of the pumping hose to the grouting port. The second rotary drive synchronously drives the first end of the pumping hose to rotate relative to the rigid pumping pipe as the second end of the pumping hose rotates with the guide column. This not only avoids the jamming problem caused by the uneven rotation between the rigid pipe and the pumping hose, but also ensures that the pumping hose itself is free from any twisting or relative rotation, effectively extending the service life of the pumping hose. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the double-rotor concrete placing boom in this embodiment of the present invention.

[0016] Reference numerals: 1. Frame; 2. Guide column; 3. First rotary drive; 4. Second rotary drive; 5. Pumping rigid pipe; 6. Pumping flexible hose; 7. Connecting flange; 8. First mounting base; 9. Second mounting base.

[0017] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] 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 indicator will also change accordingly.

[0020] Furthermore, in this utility model, the use of terms such as "first," "second," etc., 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal connection of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] like Figure 1 The image shows a double-rotating concrete placing boom disclosed in this embodiment, which mainly includes a frame 1, guide columns 2, a first rotary drive 3, a second rotary drive 4, a pumping rigid pipe 5, and a pumping flexible pipe 6. The first rotary drive 3 and the second rotary drive 4 are both mounted on the frame 1. The bottom end of the guide column 2 is connected to the rotary output end of the first rotary drive 3. Under the action of the first rotary drive 3, the guide column 2 pitches up and down in both directions on the sides of the frame 1.

[0024] The pumping rigid pipe 5 is fixed to the frame 1 by clamps or other structural components. The first end of the pumping rigid pipe 5 is connected to an external concrete pump pipe. The first end of the pumping flexible hose 6 is connected to the second end of the pumping rigid pipe 5 by a conventional pipe clamp and a sealing ring, meaning that the pumping flexible hose 6 and the pumping rigid pipe 5 can rotate relative to each other. The second end of the pumping flexible hose 6 is fixedly connected to the top of the guide post 2 by clamps or other structural components, allowing the second end of the pumping flexible hose 6 to rotate with the guide post 2 and thus connect with the grouting ports on both sides of the frame 1.

[0025] The rotary output end of the second rotary drive 4 is connected to the first end of the pumping hose 6. When the first rotary drive 3 drives the guide post 2 to rotate, thereby causing the second end of the pumping hose 6 to connect with the grouting port, the second rotary drive 4 synchronously drives the first end of the pumping hose 6 to rotate relative to the pumping rigid pipe 5. This not only avoids the jamming problem caused by the uneven rotation at the connection between the rigid pipe and the pumping hose 6, but also ensures that the pumping hose 6 itself is not twisted or rotated relative to the grouting port, effectively extending the service life of the pumping hose 6.

[0026] Since the rotary drive itself has a central through hole, in this embodiment, the first end of the pumping hose 6 is preferably connected to the pumping rigid pipe 5 after passing through the central through hole of the second rotary drive 4. That is, the second rotary drive 4 is sleeved on the pumping hose 6 to avoid bending of the pumping hose 6. In the specific implementation, a connecting flange 7 is fixedly sleeved on the pumping hose 6 by means of interference fit, etc. The connecting flange 7 is fixedly connected to the rotary output end of the second rotary drive 4 by multiple sets of bolts. That is, the second rotary drive 4 drives the first end of the pumping hose 6 to rotate through the connecting flange 7.

[0027] In the specific implementation process, the first rotary drive 3 is fixedly installed at the first end of the top of the frame 1 through the first mounting base 8, and the second rotary drive 4 is fixedly installed at the position near the second end of the top of the frame 1 through the second mounting base 9. The pumping hard pipe 5 is located at the second end of the top of the frame 1, that is, the pumping hose 6 is located above the frame 1 along the length direction of the frame 1. The length of the pumping hose 6 is increased as much as possible while avoiding bending, so that the pumping hose 6 can be twisted slightly and for a short time when the first rotary drive 3 and the second rotary drive 4 are not synchronized.

[0028] The above description is only a preferred embodiment of the present utility model and does not limit the scope of protection of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A double-rotor concrete placing boom, characterized in that, It includes a frame, guide posts, a first rotary drive, a second rotary drive, a pumping rigid pipe and a pumping flexible pipe. The first rotary drive and the second rotary drive are both mounted on the frame, and the guide posts are connected to the rotary output end of the first rotary drive. The pumping rigid pipe is fixed on the frame, and the first end of the pumping flexible hose is rotatably connected to the pumping rigid pipe through the second rotary drive. The second end of the pumping flexible hose is connected to the guide post.

2. The double-rotor concrete placing boom according to claim 1, characterized in that, The rotary output end of the second rotary drive is connected to the first end of the pumping hose.

3. The double-rotor concrete placing boom according to claim 2, characterized in that, The first end of the pumping hose passes through the central through hole of the second rotary drive and is connected to the pumping rigid pipe.

4. The double-rotor concrete placing boom according to claim 3, characterized in that, A connecting flange is fixedly fitted onto the pumping hose, and the connecting flange is connected to the rotary output end of the second rotary drive.

5. The double-rotor concrete placing boom according to claim 1, 2, 3, or 4, characterized in that, The first end of the pumping hose is connected to the pumping rigid pipe via a pipe clamp and a sealing ring.

6. The double-rotor concrete placing boom according to claim 1, 2, 3, or 4, characterized in that, The first rotary drive is located at the first end of the top of the frame, and the second rotary drive is located at the second end of the top of the frame.

7. The double-rotor concrete placing boom according to claim 1, 2, 3, or 4, characterized in that, The first rotary drive is connected to the frame via a first mounting base.

8. The double-rotor concrete placing boom according to claim 1, 2, 3, or 4, characterized in that, The second rotary drive is connected to the frame via a second mounting base.

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