Concrete vibrator and pump truck with same

Abstract

A concrete vibrator is applied to a concrete pump truck and decorated on a pump truck arm support and comprises a flexible shaft type vibration assembly and a driving motor in transmission connection with the flexible shaft type vibration assembly, and the driving motor is installed on the pump truck arm support and used for driving the flexible shaft type vibration assembly to pound concrete pumped out of a concrete conveying pipe at the tail end of the pump truck arm support. By means of the structure, construction and tamping are achieved at the same time, concrete can be vibrated more timely and evenly, the compactness and quality of the concrete can be improved easily, and the structural stability of a project is enhanced; the concrete vibrator and the pump truck are integrated, a power source of the pump truck is utilized, long-distance power connection on a construction site is not needed, and flexibility and convenience are achieved. The utility model further provides a pump truck with the concrete vibrator.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a concrete vibrator and a concrete pump truck with the same. Background Art

[0002] In the field of construction, the vibration operation of concrete is a key link to ensure the quality of concrete structures. In the prior art, when pouring concrete buildings, after the pouring is completed, construction workers need to carry a vibrator to vibrate the concrete to remove the gas in the concrete, making the concrete structure more dense and firm. When the structure to be poured is large, it takes a long time for manual vibration.

[0003] In addition, traditional concrete vibrators usually need to be connected to an external power supply over a long distance at the construction site to obtain power supply, which not only increases the complexity and cost of construction, but also has many inconveniences and potential safety hazards. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a concrete vibrator and a concrete pump truck. By installing a driving motor on the boom of the concrete pump truck and connecting the vibrator to the driving motor, it is possible to vibrate while constructing, and unmanned operation can be achieved, with higher safety; integrating the concrete vibrator with the pump truck and using the power source of the pump truck itself, there is no need to connect the power supply over a long distance at the construction site, which is more flexible and convenient.

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

[0006] The utility model provides a concrete vibrator, which is applied to a concrete pump truck and installed on the boom of the pump truck. It includes a flexible shaft type vibration assembly and a driving motor that is drivingly connected to the flexible shaft type vibration assembly. The driving motor is installed on the boom of the last section of the pump truck and is used to drive the flexible shaft type vibration assembly to vibrate the concrete pumped out by the concrete delivery pipe at the end of the boom.

[0007] Specifically, in this embodiment, at least one collar is further provided on the boom of the pump truck, so that the flexible shaft type vibration assembly is arranged close to the concrete delivery pipe, and the length of the flexible shaft type vibration assembly in the vertical direction exceeds the end of the concrete delivery pipe.

[0008] Specifically, in this embodiment, the flexible shaft type vibration assembly includes a binding end that is bound to the concrete delivery pipe.

[0009] Specifically, in this embodiment, the flexible shaft type vibration assembly includes a flexible vibration conduction part that is drivingly connected to the driving motor and a rigid vibration head that is connected to the vibration conduction part and is used to vibrate the concrete.

[0010] Specifically, in this embodiment, the vibration conduction part includes a flexible shaft that drives the vibration head in transmission connection with the drive motor, a sleeve arranged outside the flexible shaft, and a bearing installed between the flexible shaft and the inner wall of the sleeve.

[0011] Specifically, in this embodiment, the flexible shaft type vibration assembly further includes a coupling, and the coupling drives the flexible shaft in transmission connection with the drive motor.

[0012] Specifically, in this embodiment, the coupling has a connection end for connecting the flexible shaft. The external shape of the connection end is cylindrical, and a plug hole with a polygonal cross-section is axially opened inside the connection end. A plug end with a polygonal cross-section is formed at the end of the flexible shaft, and the plug end is inserted into the plug hole.

[0013] Specifically, in this embodiment, the concrete vibrator further includes a support assembly for providing installation support for the vibration conduction part. The support assembly includes a connection cover covering the connection part of the drive motor and the vibration conduction part.

[0014] Specifically, in this embodiment, a locking groove is opened on the outside of the sleeve, a locking hole is opened on the connection cover, and the support assembly further includes a locking pin passing through the locking groove and the locking hole for fixing the vibration conduction part.

[0015] The present utility model also provides a concrete pump truck, which includes the concrete vibrator in this embodiment and a pump truck boom. The drive motor of the concrete vibrator is installed on the pump truck boom.

[0016] The concrete vibrator provided by the present utility model is applied to a concrete pump truck and installed on the pump truck boom. It includes a flexible shaft type vibration assembly and a drive motor that is in transmission connection with the flexible shaft type vibration assembly. The drive motor is installed on the pump truck boom and is used to drive the flexible shaft type vibration assembly to vibrate the concrete pumped out from the concrete delivery pipe at the end of the pump truck boom, realizing vibration during construction, making the vibration of the concrete more timely and uniform, helping to improve the density and quality of the concrete, and enhancing the structural stability of the project; integrating the concrete vibrator with the pump truck and using the power source of the pump truck itself, there is no need to connect the power supply over a long distance at the construction site, which is more flexible and convenient. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of a concrete vibrator provided by an embodiment of the present invention.

[0019] Figure 2 It is Figure 1 a sectional view showing the connection between the vibration conduction part and the drive motor in the concrete vibrator shown.

[0020] Figure 3 It is Figure 1 a sectional view of the flexible shaft and the coupling in the concrete vibrator shown.

[0021] In the figure: 1, boom; 2, drive motor; 3, control valve; 4, vibration conduction part; 41, flexible shaft; 42, sleeve; 421, locking groove; 43, bearing; 5, vibration head; 6, coupling; 7, connecting cover; 71, locking hole; 8, locking pin; 9, concrete delivery pipe; 10, collar; 11, storage arm. Specific embodiments

[0022] Next, specific embodiments of the present invention will be described in detail in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present invention.

[0023] In the description of the present invention, unless otherwise clearly defined and limited, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0024] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the present invention is usually placed during use. It is only for the convenience of description and simplification of the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0025] Terms such as "first", "second", "third", etc. are only used to distinguish elements with similar attributes, rather than indicating or implying relative importance or a specific order.

[0026] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0027] like Figure 1 As shown, a preferred embodiment of the utility model provides a concrete vibrator, which is applied to a concrete pump truck and installed on the boom of the pump truck, including a flexible shaft type vibration component and a drive motor 2 which is transmission-connected to the flexible shaft type vibration component. The drive motor 2 is installed on the boom 1 of the last arm of the pump truck, and is used to drive the flexible shaft type vibration component to vibrate the concrete pumped out of the concrete delivery pipe 9 at the end of the boom 1 of the pump truck, thereby realizing vibrating while under construction, making the vibration of the concrete more timely and uniform, helping to improve the density and quality of the concrete and enhancing the structural stability of the project.

[0028] In this embodiment, the boom 1 of the pump truck is the last boom section of the pump truck, which refers to the boom section close to the pouring point (i.e., the boom section away from the turntable end). The concrete delivery pipe 9 is installed on the last boom section of the pump truck, and is usually a hose.

[0029] In this embodiment, the drive motor 2 includes a hydraulic motor, and the power source is the hydraulic fluid converted from the engine output. A control valve 3 is installed on the pump truck arm 1, and the hydraulic fluid transported on the pump truck arm 1 through the control valve 3 transmits the flexible shaft vibration component; in other embodiments, the control valve 3 may not be installed, and the drive motor 2 may be replaced by any power device such as a pneumatic motor or an electric motor that can transmit the flexible shaft vibration component.

[0030] Specifically, the control valve 3 is installed on the pump truck arm frame 1, and the existing hydraulic system on the pump truck provides hydraulic oil. The hydraulic oil flows through the control valve 3 on the pump truck arm frame 1, and after the pressure and flow are reduced by the control valve 3, it is input into the hydraulic motor through two guide pipes passing through the hydraulic motor and the control valve 3, driving the output shaft of the hydraulic motor to rotate, thereby realizing that the concrete vibrator obtains power supply without connecting to an external power supply, avoiding the cumbersome process of connecting to the power supply over a long distance at the construction site, significantly improving construction efficiency, and saving time costs. The pump truck's own power source is utilized to avoid voltage instability and other problems that may occur in an external power supply, ensuring the stability and reliability of the vibrator's operation, and realizing vibration while construction, making the vibration of concrete more timely and uniform, which helps to improve the density and quality of concrete and enhance the structural stability of the project.

[0031] Specifically, the flexible shaft vibration assembly includes a flexible vibration transmission part 4 connected to the driving motor 2 and a rigid vibration head 5 connected to the vibration transmission part 4 for tamping the concrete. The vibration transmission part 4 is made of flexible material, which can effectively buffer and absorb the impact force generated during the vibration process. The flexible material has a certain bending and deformation ability, which can better adapt to the complex construction environment and different installation positions and angles, and can also reduce the hard friction and wear between components caused by vibration, thereby extending the service life of the equipment. The vibration head 5 is made of rigid material, which can more accurately transmit the designed vibration frequency and amplitude to the concrete, ensuring the stability of the construction quality. The rigid material has high wear resistance and can withstand long-term use without being easily damaged.

[0032] In this embodiment, the vibration conducting part 4 is a cylindrical structure, and the vibration head 5 is a cylindrical structure connected to the end of the cylindrical structure.

[0033] like Figure 2 As shown, specifically, the vibration transmission part 4 includes a flexible shaft 41 that transmits and connects the drive motor 2 and the vibration head 5, a sleeve 42 sleeved on the outside of the flexible shaft 41, and a bearing 43 installed between the flexible shaft 41 and the inner wall of the sleeve 42. The flexible shaft 41 is connected to the output end of the drive motor 2, so that the drive motor 2 drives the flexible shaft 41 to rotate, and the flexible shaft 41 rotates and hits the vibration head 5 to generate high-frequency vibration. The bearing 43 is used to reduce the friction between the flexible shaft 41 and the sleeve 42 when the flexible shaft 41 rotates, reduce energy loss, improve transmission efficiency, and reduce the jumping and shaking of the flexible shaft 41, thereby improving the accuracy and stability of transmission.

[0034] In this embodiment, the length of the flexible shaft 41 is greater than that of the sleeve 42, so that a portion of the flexible shaft 41 is inside the cylindrical structure of the vibration head 5. In this way, when the flexible shaft 41 rotates, it can collide with the inside of the vibration head 5 to produce a vibration effect.

[0035] Specifically, the flexible shaft type vibration assembly further includes a coupling 6, which is used to drive the flexible shaft 41 to the drive motor 2. The coupling 6 can ensure the coaxiality of the flexible shaft 41 and the output shaft of the drive motor 2 to a certain extent, thereby improving the transmission accuracy and stability.

[0036] like Figure 3 As shown, in this embodiment, the coupling 6 has a connection end for connecting the flexible shaft 41, the external shape of the connection end is cylindrical, and a plug hole with a polygonal cross section is opened in the axial direction inside the connection end, and a plug end with a polygonal cross section is formed at the end of the flexible shaft 41, and the plug end is inserted into the plug hole. The flexible shaft 41 is a variable cross-section structure, and the connection end that cooperates with the coupling 6 is polygonal, and its cross section in the sleeve 42 includes various shapes such as polygonal and circular.

[0037] likeFigure 2 As shown, in this embodiment, the concrete vibrator further includes a support assembly for providing installation support for the vibration conduction part 4. The support assembly includes a connection cover 7 covering the connection part between the drive motor 2 and the vibration conduction part 4. The connection cover 7 is frustum-shaped, with a large circular cross-section covering one end of the drive motor 2 and a small circular cross-section covering one end of the vibration conduction part 4. The connection cover 7 can prevent the connection part from being physically damaged by the outside, help enhance the sealing performance of the connection part, reduce the possibility of hydraulic oil leakage, improve the normal operation of the system and extend the service life. It can also prevent the operator from directly contacting the high-speed rotating parts at the connection part, reducing potential safety hazards.

[0038] Specifically, a locking groove 421 is formed on the outside of the sleeve 42, a locking hole 71 is formed on the connection cover 7, and the support assembly further includes a locking pin 8 passing through the locking groove 421 and the locking hole 71 for fixing the vibration conduction part 4. It provides installation support for the vibration conduction part 4 and has a protective function at the same time. The vibration conduction part 4 is assembled with the connection cover 7 and locked by the locking pin 8 to prevent the vibration conduction part 4 from slipping.

[0039] As Figure 1 shown, in this embodiment, at least one collar 10 is further provided on the boom 1 of the concrete pump truck, which mainly plays a guiding role to make the flexible shaft type vibration assembly close to the concrete delivery pipe 9, and the length of the flexible shaft type vibration assembly in the vertical direction exceeds the end of the concrete delivery pipe 9.

[0040] In this embodiment, the flexible shaft type vibration assembly further includes a binding end bound to the concrete delivery pipe 9. The binding end is specifically the end far from the drive motor 2 and is formed on the sleeve 42, and is bound to the concrete delivery pipe 9 by a rope or a clamp.

[0041] Specifically, when concrete is pumped, the concrete is output from the concrete delivery pipe 9, and the vibrating head 5 is placed at the position where pouring is required. The concrete delivery pipe 9 needs to be spaced a certain distance from the ground to prevent the concrete from clogging in the concrete delivery pipe 9, while the vibrating head 5 needs to be placed on the ground where the concrete is laid. Therefore, the length of the vibration conduction part 4 needs to be greater than the length of the concrete delivery pipe 9 to achieve the effect of vibrating while constructing.

[0042] An embodiment of another aspect of the present invention further provides a concrete pump truck, including the concrete vibrator described in the above embodiment and the boom 1 installed on the concrete pump truck. The drive motor 2 and the control valve 3 on the concrete vibrator are both installed on the boom 1 of the concrete pump truck.

[0043] In this embodiment, the boom 1 of the concrete pump truck further includes a storage arm 11 for storing the concrete delivery pipe 9, which is convenient for storing the concrete delivery pipe 9 after the pumping work is completed.

[0044] The specific working process of the above concrete vibrator includes the following operations:

[0045] Step 1: The hydraulic oil flowing through the boom 1 of the pump truck is reduced in pressure and flow rate by the control valve 3 and then input into the drive motor 2.

[0046] Step 2: The drive motor 2 is started, and the flexible shaft 41 in the vibration conduction part 4 is driven to rotate through the coupling 6.

[0047] Step 3: The flexible shaft 41 rotates and impacts the rigid vibration head 5 connected to the end of the vibration conduction part 4, generating high-frequency vibration.

[0048] Step 4: A part of the vibration conduction part 4 near the drive motor 2 is fixed on the boom 1 of the pump truck through the collar 10, and the other part is arranged in parallel with the concrete delivery pipe 9 and is longer than the length of the concrete delivery pipe 9, so that when concrete is being delivered, the vibration head 5 is placed in the concrete to achieve the effect of vibrating while constructing.

[0049] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. A concrete vibrator, characterized in that: The invention is applied to a concrete pump truck and is installed on a boom frame (1) of a pump truck, comprising a flexible shaft type vibration component and a driving motor (2) drivingly connected to the flexible shaft type vibration component. The driving motor (2) is installed on the boom frame (1) of the pump truck and is used to drive the flexible shaft type vibration component to vibrate concrete pumped out of a concrete delivery pipe (9) at the end of the boom frame (1).

2. The concrete vibrator according to claim 1, characterized in that: At least one collar (10) is also provided on the pump truck boom (1), so that the flexible shaft vibration assembly is arranged close to the concrete conveying pipe (9), and the length of the flexible shaft vibration assembly in the vertical direction exceeds the end of the concrete conveying pipe (9).

3. The concrete vibrator according to claim 2, characterized in that: The flexible shaft vibration component comprises a binding end which is bound to the concrete conveying pipe (9).

4. The concrete vibrator according to claim 1, characterized in that: The flexible shaft vibration assembly comprises a flexible vibration transmission part (4) transmission-connected to the drive motor (2) and a rigid vibration head (5) connected to the vibration transmission part (4) and used for tamping concrete.

5. The concrete vibrator according to claim 4, characterized in that: The vibration transmission part (4) comprises a flexible shaft (41) for transmission connection between the driving motor (2) and the vibration head (5), a sleeve (42) sleeved outside the flexible shaft (41), and a bearing (43) installed between the flexible shaft (41) and the inner wall of the sleeve (42).

6. The concrete vibrator according to claim 5, characterized in that: The flexible shaft type vibration assembly further comprises a coupling (6), wherein the coupling (6) transmission-connects the flexible shaft (41) and the drive motor (2).

7. The concrete vibrator according to claim 6, characterized in that The coupling (6) has a connecting end for connecting the flexible shaft (41), the external shape of the connecting end is cylindrical, and a plug hole with a polygonal cross section is opened axially inside the connecting end, and a plug end with a polygonal cross section is formed at the end of the flexible shaft (41), and the plug end is inserted into the plug hole.

8. The concrete vibrator according to claim 5, characterized in that: The concrete vibrator further comprises a support assembly for providing mounting support for the vibration conducting part (4), wherein the support assembly comprises a connection cover (7) provided at the connection between the driving motor (2) and the vibration conducting part (4).

9. The concrete vibrator according to claim 8, characterized in that The sleeve (42) is provided with a locking groove (421) on the outside, the connecting cover (7) is provided with a locking hole (71), and the supporting assembly further comprises a locking pin (8) inserted through the locking groove (421) and the locking hole (71) for fixing the vibration conducting part (4).

10. A pump truck, characterized in that: It comprises a concrete vibrator and a boom (1) as claimed in any one of claims 1 to 9, wherein the driving motor (2) of the concrete vibrator is mounted on the boom (1) of the last boom of the pump truck.

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