Double-end telescopic boom pump

Abstract

The utility model discloses a double-head telescopic boom pump. The boom pump comprises a power chassis; the rotating support is mounted on the power chassis; the folding arm is mounted on the rotating support and is provided with a plurality of folding joints; the folding oil cylinder is positioned at the folding joint of the folding arm and is hinged to two adjacent arm bodies of the folding arm; the pumping system is used for pumping concrete; the main pump pipe is mounted on the folding arm and is connected with the output end of the pumping system; and the double-head pump pipe is connected to the discharging end of the main pump pipe. A traditional ground pump is installed on the power chassis and can be matched with a secondary lining trolley for rapid pouring; and the main pump pipe and the double-end pump pipe are installed on the folding arm, the original staggered complex pump pipe is simplified, meanwhile, the risk of pipe blocking is greatly reduced, the folding arm can be rapidly and automatically unfolded in a one-key mode to convey the pump pipe to all windows, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] The present application belongs to the technical field of tunnel construction, and specifically relates to a double-head telescopic boom pump. Background Art

[0002] Traditional secondary lining concrete pumps primarily consist of a pump body, delivery pipeline, and control system. The pump body is the core component of the concrete pump, pushing concrete into the delivery pipeline via a rotating screw shaft. The delivery pipeline transports concrete from the pump body into the tunnel interior, and can be selected in various lengths and diameters based on actual needs. The control system controls the pump body's rotational speed and the delivery pipeline's opening and closing, enabling precise control of concrete delivery. In traditional construction, prior to use, the equipment should be thoroughly inspected to ensure that all components are intact and the delivery pipeline is unobstructed. The pump must be connected to the delivery pipe of the secondary lining trolley. During use, the delivery speed and volume of concrete must be strictly controlled to avoid excessive or slow delivery that could lead to construction quality issues. The delivery pipeline should be carefully observed throughout the delivery process to promptly detect and address any blockages. After use, the equipment should be cleaned and maintained to ensure long-term stable operation.

[0003] In traditional tunnel secondary lining pouring, a concrete pump is also a key piece of equipment. This equipment, combined with a secondary lining trolley, is a traditional construction method for tunnel secondary lining pouring. This method relies on pressure-fed concrete through pipelines. Specialized pipes are used to continuously transport concrete horizontally and vertically along the pipelines. This method combines ready-mixed concrete production with pumping operations, enabling continuous concrete pumping and pouring. The secondary lining pouring method uses a trolley-mounted ground pump as the construction process: the ground pump is manually pushed to the designated location, the pump outlet is connected to the secondary lining trolley's pump outlet, the equipment is started to pump concrete, the side windows are poured, the pipes are replaced, and the vault is poured. After pouring, the pipes are removed and cleaned. However, with long-term use, limitations and drawbacks have become apparent. For example, the ground pump is unpowered, requiring manual pushing each time it is moved forward. It serves as a single concrete pumping mechanism. The pump pipes are crisscrossed and curved on the secondary lining trolley, making them prone to blockage during pouring, impacting construction efficiency and secondary lining quality. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model proposes a double-head telescopic boom pump to improve the problems of easy pipe blockage, low efficiency and long pouring time of the traditional secondary lining construction.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A double-head telescopic boom pump comprises: a power chassis for carrying and traveling; a rotating support mounted on the power chassis; a folding arm mounted on the rotating support and having a plurality of folding joints; a folding cylinder located at the folding joints of the folding arm and hinged to two adjacent arm bodies of the folding arm; a pumping system for pumping concrete; a main pump pipe mounted on the folding arm and connected to the output end of the pumping system; a double-head pump pipe connected to the discharge end of the main pump pipe, having two output pump pipes, which can be flipped on the main pump pipe and adjusted in angle.

[0007] Preferably, the double-headed pump tube is configured to be detachably connected to the main pump tube, so that the output pump tube can be replaced in time when blockage occurs.

[0008] Preferably, the power chassis is also provided with a telescopic arm and a telescopic arm beam, one end of the telescopic arm is connected to the part of the power chassis close to the pumping system, and the other end is connected to the rotating support; the power chassis is provided with a slide rail arranged along its travel direction, and the rotating support is slidably arranged on the slide rail.

[0009] Preferably, the telescopic arm drives the rotating support to slide on the power chassis, so as to meet the casting requirements of each window of the 12-meter secondary lining trolley without moving the power chassis.

[0010] Preferably, a concrete receiving funnel is provided on the power chassis, and the input end of the pumping system is connected to the concrete receiving funnel.

[0011] Preferably, hydraulic legs for supporting and balancing the power chassis are installed at the four corners of the power chassis.

[0012] Preferably, a control cab is provided on the rotating support.

[0013] Preferably, the pumping system is provided with a concrete flow meter for measuring the volume of concrete.

[0014] The beneficial effects of the present invention are as follows: by installing the traditional ground pump on the power chassis, the mobility of the ground pump is increased, so that the original manual pushing type is converted to the driving type during the second lining pouring, which can reduce labor intensity, so that the arm pump of the present application can be quickly and flexibly moved to the construction site, and cooperated with the second lining trolley for rapid pouring, thereby improving pouring efficiency; the arm pump used in the present application transplants the main pump pipe and the double-head pump pipe to the folding arm, eliminating the intricate pumping pipeline structure on the original second lining trolley, greatly reducing the risk of pipe blockage, reducing the manual takeover time and the risk of pipe blockage, and also eliminating the pump pipe inspection process that must be carried out before the traditional second lining trolley pouring, thereby significantly improving construction efficiency. With the help of the folding arm and telescopic arm, it is not only convenient to store the main pump pipe, but also there is no need for manual docking and installation of the pump pipe. The folding arm can be quickly and automatically unfolded with one button to deliver the pump pipe to each window, which can meet the double-head pouring on both sides of the 12-meter secondary lining trolley, greatly improving the layout efficiency of the pump pipe, reducing the labor intensity of construction workers, and even reducing manpower. For example, only one person is needed to control the work of the folding arm to dock the pump pipe with the window position. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a double-head telescopic boom pump according to an embodiment of the present application;

[0016] Figure 2 is a top view of a double-head telescopic boom pump according to an embodiment of the present application;

[0017] Description of reference numerals:

[0018] 1. Power chassis; 2. Pumping system; 3. Concrete receiving funnel; 4. Folding arm; 5. Main pump pipe; 6. Double-head pump pipe; 7. Telescopic arm; 8. Telescopic arm frame; 9. Folding cylinder; 10. Hydraulic support legs; 11. Rotating support; 12. Control cab. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the present invention.

[0020] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0021] The embodiment of the present application discloses a double-head telescopic boom pump. Figure 1 and Figure 2 , which includes:

[0022] The power chassis 1 is used for carrying and traveling. The power chassis 1 is specifically modified from a truck chassis and has four-wheel steering and driving functions.

[0023] The rotating support 11 is installed on the power chassis 1 and can realize 360° free rotation to be suitable for multi-directional angle adjustment.

[0024] The folding arm 4 is mounted on the rotating support 11 and has multiple folding joints. The arm bodies on the folding arm 4 are connected through the folding joints. The folding arm 4 can be stably stored on the power chassis 1 after being fully folded. After being unfolded, the folding arm 4 can be folded at multiple angles with the help of the multiple folding joints, and can be conveniently pointed to a designated area in a narrow space in a tunnel. In this embodiment, the folding arm 4 is provided with four arm bodies.

[0025] The folding cylinder 9 is located at the folding joint of the folding arm 4 and is hinged to two adjacent arm bodies of the folding arm 4. The folding cylinder 9 is used to adjust the angle between the two hinged arm bodies to achieve folding and unfolding control of the folding arm 4.

[0026] The pumping system 2 is used to pump concrete. Specifically, it can be a conventional ground pump installed on the power chassis 1. The aforementioned power chassis 1 is also provided with a power transfer case, which can transmit the power of the engine in the power chassis 1 to the rear axle or the ground pump, thereby realizing both the travel function of the power chassis 1 and the normal operation of the ground pump, and avoiding the dependence of conventional ground pumps on external energy when operating. In terms of specific configuration, the power chassis 1 of this application is a dual-power configuration of an engine and an electric motor. The power of the engine installed thereon is used for travel and concrete pumping, and the power of the electric motor installed thereon is used for the operation of control components such as the folding cylinder 9 and the rotating support 11.

[0027] a main pump pipe 5 mounted on the folding arm 4 and connected to the output end of the pumping system 2; and

[0028] The double-headed pump pipe 6 is connected to the discharge end of the main pump pipe 5. The double-headed pump pipe 6 has two output pump pipes, which can be flipped on the main pump pipe 5 and the angle can be adjusted. At the same time, the double-headed pump pipe 6 is configured to be detachably connected to the main pump pipe 5, so that the output pump pipe can be replaced in time when blockage occurs, and rapid maintenance can be achieved, thereby reducing the impact on the progress of the secondary lining pouring construction.

[0029] After such arrangement, by installing the traditional ground pump on the power chassis 1, the mobility of the ground pump is increased, so that when pouring the second lining, the original manual pushing type is converted to the driving type, which can reduce the labor intensity. Therefore, the boom pump of the present application can be quickly and flexibly moved to the construction site, and cooperated with the second lining trolley for rapid pouring, thereby improving the pouring efficiency.

[0030] Moreover, the boom pump of the present application transplants the main pump pipe 5 and the double-headed pump pipe 6 onto the folding arm 4, eliminating the intricate pumping pipe conveying structure on the original secondary lining trolley, greatly reducing the risk of pipe blockage, reducing the time for manual unblocking due to pipe docking and pipe blockage, and also eliminating the pump pipe inspection process that must be performed before pouring the traditional secondary lining trolley, which has a positive effect on improving construction efficiency. At the same time, compared to the traditional secondary lining pouring construction, in which each floor and each window needs to be connected to a pump pipe for concrete pouring, after using the boom pump of the present application, only one main pump pipe 5 and one double-headed pump pipe 6 are required for 4 floors (8 windows per floor), which not only greatly reduces the risk of concrete pipe blockage, but also allows for quick replacement of new pump pipes after pipe blockage, without affecting concrete pouring, and can effectively ensure concrete pouring efficiency.

[0031] At the same time, with the help of the setting of the folding arm 4, not only can the storage of the main pump pipe 5 be facilitated, but also there is no need for manual docking and installation of the pump pipe. The folding arm 4 can be quickly and automatically unfolded with one button to deliver the pump pipe to each window, which greatly improves the efficiency of pump pipe layout, reduces the labor intensity of construction workers, and even reduces manpower. For example, only one person is needed to control the work of the folding arm 4 to dock the pump pipe with the window position.

[0032] In addition, refer to Figure 1 and Figure 2 A concrete receiving funnel 3 is provided on the power chassis 1, the input end of the pumping system 2 is connected to the concrete receiving funnel 3, and a concrete flow meter for measuring the volume of concrete is provided in the pumping system 2.

[0033] After the setting, in the secondary lining pouring construction, after the double-head pump pipe 6 is controlled to be aligned with the corresponding pouring window through the folding arm 4, the concrete is first put into the concrete receiving hopper 3 by the concrete pump truck, and then the concrete is transported into the two output pump pipes of the double-head pump pipe 6 by the pumping system 2, so as to pour the designated window. During the pouring process, the concrete flow meter can monitor the amount of pumped concrete, and by comparing the concrete volume monitored by the concrete flow meter with the designed concrete volume, the possible abnormalities in the secondary lining pouring process can be analyzed and found in time, so that the construction personnel can timely deal with the construction abnormalities, avoid more serious consequences, and cause economic losses.

[0034] Further, in order to expand the pouring range of the arm bracket pump of the present application, with reference to Figure 1 and Figure 2 , the power chassis 1 is further provided with a telescopic arm 7 and a telescopic arm girder 8, one end of the telescopic arm 7 is connected to the part of the power chassis 1 close to the pumping system 2, and the other end is connected to the rotating support 11. The power chassis 1 is provided with a sliding rail arranged along the running direction thereof, and the rotating support 11 is slidingly arranged on the sliding rail. With the arrangement of the telescopic arm 7, the rotating support 11 can be pushed to slide on the power chassis 1 by the telescopic arm 7, and the pointing range of the output pump pipe on the double-head pump pipe 6 can be further improved, so that all the pouring windows of the single pouring section of the secondary lining trolley can be poured by means of the telescopic arm 7 and the folding arm 4 without moving the power chassis 1, which greatly improves the pouring capacity of the arm bracket pump of the present application. Moreover, if the power chassis 1 is parked at the side of the secondary lining trolley, it does not affect the entry and exit of the slag removal vehicle and the simultaneous construction of the front excavation, and it is not necessary to move frequently, which greatly improves the construction efficiency of the secondary lining pouring construction. For example, in the embodiment of the present application, by means of the telescopic arm 7 and the folding arm 4, a length of 12m can be achieved in one construction, and the construction advantage is more obvious.

[0035] In addition, in order to ensure the stability of the arm bracket pump of the present application during work, with reference to Figure 1 and Figure 2 , hydraulic legs 10 for supporting and balancing the power chassis 1 are installed at the four corners of the power chassis 1. By extending the four hydraulic legs 10, the power chassis 1 can be jacked up to improve the stability. A control cab 12 is arranged on the rotating support 11, which can facilitate the operator to rotate and observe the situation of the working front end at any time.

[0036] The double-head telescopic boom pump and two-lining trolley cooperation construction method disclosed by the embodiments of the application is as follows: a ground pump is installed on a power chassis 1 to form a pumping system 2, and an output end of the pumping system 2 is connected with a main pump pipe 5, wherein the power source of the ground pump can be provided by an engine on the power chassis 1; the concrete pouring pump pipe on the two-lining trolley is cancelled, and the power chassis 1 is controlled to move to a specified position; the folding oil cylinder 9 is controlled to make the folding arm 4 unfold the main pump pipe 5, until two discharge openings of the double-head pump pipe 6 are respectively aligned with two pouring windows on the two-lining trolley on the corresponding two sides; the concrete in the concrete pump truck is poured into the concrete receiving hopper 3 connected with the pumping system 2, and the pumping system 2 is started, so that the pumping system 2 conveys the concrete to the double-head pump pipe 6 through the main pump pipe 5, so that the two pouring windows on the two sides simultaneously perform two-side symmetrical pouring operation; after pouring of each window of each layer is completed, the folding oil cylinder 9 is controlled to make the double-head pump pipe 6 shift to the next layer of pouring window, until the vault pouring is completed.

[0037] Therefore, compared with the traditional two-lining trolley pouring construction, the ground pump needs to be manually pushed to the specified position, and the mobility is poor; before pouring, it is necessary to check whether the pump pipe of each window is closed, to confirm which window is opened during pouring, and to check the operation, which is complicated; before pouring, the pump pipe needs to be connected and installed with the ground pump interface, and when pouring the vault, manual replacement of the pump pipe is required, which increases the manual pipe replacement time and reduces the pouring efficiency; the pump pipe connected with the two-lining trolley and the ground pump is complex, which is easy to cause concrete pipe blockage, and after the pipe is blocked, manual inspection of the pipe blockage position is required, which leads to long cleaning time and causes concrete waste and a series of problems.

[0038] The application adopts the double-head telescopic boom pump and two-lining trolley cooperation construction pouring, which can combine the pump pipe + ground pump + power chassis 1 into one through the structure of the folding arm 4, replace the disadvantage that the traditional ground pump pouring needs to install the pump pipe, quickly reach the pouring position, and unfold the main pump pipe 5 and the double-head pump pipe 6 under the action of the folding arm 4 and the telescopic arm 7 to meet the two-side double-head pouring of the 12-meter two-lining trolley, which can significantly improve the construction efficiency and construction quality, and provide strong guarantee for tunnel construction.

[0039] The arm boom pump used in the application transplants the main pump pipe 5 and the double-head pump pipe 6 to the folding arm 4, eliminates the complex pump pipe structure on the original two-lining trolley, greatly reduces the risk of pipe blockage, reduces the manual pipe connection time and the risk of pipe blockage, and also eliminates the traditional two-lining trolley pouring process that must be performed before pouring, which significantly improves the construction efficiency. In the traditional two-lining pouring construction, one pump pipe needs to be connected for concrete pouring for each window of each layer, and after the arm boom pump of the application is used, only one main pump pipe 5 and one double-head pump pipe 6 are required for four layers (8 windows per layer), and the new pump pipe can be quickly replaced after the pipe is blocked, which does not affect the concrete pouring, can effectively ensure the concrete pouring efficiency.

[0040] At the same time, with the help of the setting of the folding arm 4 and the telescopic arm 7, not only can the main pump pipe 5 be stored conveniently, but also the pump pipe can be installed without manual docking. The folding arm 4 can be quickly and automatically unfolded with one button to deliver the pump pipe to each window, which can meet the double-head pouring on both sides of the 12-meter second lining trolley, greatly improving the layout efficiency of the pump pipe, reducing the labor intensity of construction workers, and even reducing manpower. For example, only one person is needed to control the work of the folding arm 4 to dock the pump pipe with the window position.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above. For the sake of simplicity, they are not provided in detail. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that it is still possible to modify the technical solutions recorded in the above embodiments, or to make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-head telescopic boom pump, characterized in that: include: Power chassis (1), used for carrying and traveling; A rotating support (11) is mounted on the power chassis (1); A folding arm (4) is mounted on the rotating support (11) and has multiple folding joints; A folding oil cylinder (9) is located at the folding joint of the folding arm (4) and is hinged to two adjacent arm bodies of the folding arm (4); a pumping system (2) for pumping concrete; A main pump pipe (5) is mounted on the folding arm (4) and connected to the output end of the pumping system (2); The double-headed pump pipe (6) is connected to the discharge end of the main pump pipe (5) and has two output pump pipes, which can be turned over on the main pump pipe (5) and adjusted in angle.

2. The double-head telescopic boom pump according to claim 1, characterized in that: The double-headed pump tube (6) is configured to be detachably connected to the main pump tube (5) so as to facilitate timely replacement of the output pump tube when blockage occurs.

3. The double-head telescopic boom pump according to claim 2, characterized in that: The power chassis (1) is further provided with a telescopic arm (7) and a telescopic arm beam (8), one end of the telescopic arm (7) is connected to a portion of the power chassis (1) close to the pumping system (2), and the other end is connected to the rotating support (11); The power chassis (1) is provided with a slide rail arranged along its travel direction, and the rotating support (11) is slidably arranged on the slide rail.

4. The double-head telescopic boom pump according to claim 3, characterized in that: The telescopic arm (7) drives the rotating support (11) to slide on the power chassis (1), so as to meet the casting requirements of each window of the 12-meter second lining trolley without moving the power chassis (1).

5. The double-head telescopic boom pump according to claim 1, characterized in that: A concrete receiving funnel (3) is provided on the power chassis (1), and the input end of the pumping system (2) is connected to the concrete receiving funnel (3).

6. The double-head telescopic boom pump according to claim 1, characterized in that: Hydraulic support legs (10) for supporting and balancing the power chassis (1) are installed at the four corners of the power chassis (1).

7. The double-head telescopic boom pump according to claim 1, characterized in that: A control cab (12) is provided on the rotating support (11).

8. The double-head telescopic boom pump according to claim 1, characterized in that: The pumping system (2) is provided with a concrete flow meter for measuring the volume of concrete.

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