A vibrating discharge device for a concrete mixing truck

Abstract

This disclosure relates to the technical field of concrete transportation. One embodiment of this disclosure provides a vibratory unloading device for a concrete mixer truck, comprising: a receiving hood, an outer frame, and a sliding hopper. The sliding hopper is mounted on the outer frame, and a support column is rotatably connected to the outer frame. A vibratory discharge assembly is disposed between the support column and the sliding hopper. The vibratory discharge assembly includes a transmission groove, which is formed in the upper end of the support column. A transmission column is movably connected to the transmission groove. A connecting frame is provided at the bottom of the sliding hopper. An eccentric shaft is provided at the output end of the drive motor, and a connecting rod is rotatably connected to the transmission column via a pin. This technical solution solves the technical problem that existing vibratory unloading devices for traditional concrete mixer trucks generally use a vibratory motor as the power source. This transmission method has inherent defects such as low vibration frequency and amplitude, resulting in poor unloading effect and difficulty in meeting the unloading requirements of high-performance concrete.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of concrete transportation, and more specifically, to a vibratory unloading device for a concrete mixer truck. Background Technology

[0002] In the unloading operation of concrete mixer trucks, the vibratory unloading device is a key component for solving the problem of viscous concrete residue, and its vibration effect directly affects the unloading efficiency and residue control. However, traditional vibratory unloading devices for concrete mixer trucks generally use vibratory motors as the power source. This transmission method has inherent defects in low vibration frequency and amplitude, resulting in poor unloading effect, making it difficult to meet the unloading requirements of high-performance concrete, and restricting construction efficiency and equipment utilization.

[0003] Existing vibratory unloading devices mostly rely on vibratory motors to directly drive the tank or unloading chute. Limited by motor speed and power, the vibration frequency is typically maintained at a low level, and the amplitude adjustment range is narrow. When dealing with low-slump, highly viscous concrete, low-frequency, small-amplitude vibrations cannot effectively break down the internal cohesion of the concrete, causing material to accumulate on the inner wall of the tank or in the unloading chute, resulting in a high residual amount. For example, after pumping high-strength concrete, traditional vibratory motor unloading requires continuous operation for a considerable period, and the residual amount can still reach more than 5% of the tank volume, not only causing material waste but also increasing the difficulty of equipment cleaning.

[0004] Meanwhile, vibratory motors suffer from low vibration transmission efficiency and significant energy loss. The vibrations generated by the motor are transmitted to the tank via a rigid support, and are easily attenuated along the transmission path, resulting in significant differences in vibration intensity across different parts of the tank. The vibration effect is weakest at the bottom of the tank and near the discharge port, creating a dead zone during unloading. Furthermore, long-term high-frequency operation of vibratory motors is prone to overheating and overload, leading to poor reliability and requiring frequent maintenance and replacement, increasing operating costs. With the increasing demands for unloading efficiency and residual material control in the ready-mixed concrete industry, traditional vibratory motor unloading methods, due to their low frequency amplitude, poor transmission efficiency, and high maintenance costs, can no longer meet the demands of modern construction for efficient and low-residue unloading. There is an urgent need to develop a new type of vibratory unloading device that can provide high-frequency, high-amplitude vibration and efficient energy transmission to solve the industry problems of incomplete unloading and low efficiency. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a vibratory unloading device for concrete mixer trucks, which solves the technical problem that the vibratory unloading devices of traditional concrete mixer trucks in the prior art generally use a vibratory motor as a power source. This transmission method has the inherent defects of low vibration frequency and amplitude, resulting in poor unloading effect and difficulty in meeting the unloading requirements of high-performance concrete.

[0006] According to one aspect, at least one embodiment of this disclosure provides a vibratory unloading device for a concrete mixer truck, comprising:

[0007] The material receiving cover, the outer frame, and the sliding hopper are arranged on the outer frame;

[0008] The support column and the vibrating discharge assembly are provided. The support column is rotatably connected to the outer frame, and the vibrating discharge assembly is disposed between the support column and the sliding hopper.

[0009] A blocking assembly is disposed at the lower end of the hopper;

[0010] The vibrating discharge assembly includes a transmission groove, which is opened inside the upper end of the support column. The transmission column is vertically and movably connected inside the transmission groove. A connecting frame is provided at the bottom of the sliding hopper. The connecting frame is rotatably connected to the upper end of the transmission column by a pin. A drive motor is installed on the support column. An eccentric shaft is provided at the output end of the drive motor. A connecting rod is rotatably connected to the transmission column by a pin.

[0011] As a further technical solution, a number of movable columns are provided on the outside of the transmission column, a connecting plate is provided on the outside of the support column, the movable columns are movably fitted into the connecting plate, and a first spring is fitted at both the upper and lower ends of the movable column.

[0012] As a further technical solution, fixed blocks are provided on both sides of the hopper, and a connecting rod is movably connected inside the fixed block. A crossbar is provided at the bottom of the connecting rod, and a second spring is fitted at both ends of the connecting rod.

[0013] As a further technical solution, a hydraulic cylinder is rotatably connected to the support column via a pin, and a connecting block is provided at the output end of the hydraulic cylinder. The connecting block is rotatably connected to the bottom of the cross frame via a pin.

[0014] As a further technical solution, the blocking assembly includes a blocking plate, which is rotatably connected to the lower end of the sliding hopper via a rotating shaft. A protrusion is provided on one side of the sliding hopper, and a movable cavity is formed in the side end face of the protrusion.

[0015] As a further technical solution, a locking block is connected to the movable sleeve inside the movable cavity, and a third spring is connected between the locking block and the movable cavity. A limit frame is provided at one end of the rotation shaft of the blocking plate, and the limit frame is fitted onto the locking block.

[0016] As a further technical solution, mounting plates are provided on both sides of the receiving cover, and the mounting plates and the outer frame surface are provided with a number of mounting holes.

[0017] As a further technical solution, both the transmission groove and the transmission column have polygonal cross-sections.

[0018] The beneficial effects of the embodiments disclosed herein are as follows:

[0019] 1. In this disclosure, the vibratory discharge assembly drives the eccentric shaft to rotate via a drive motor. The eccentric structure causes the connecting rod to push the transmission column to make vertical reciprocating motion in the transmission groove, thereby causing the hopper to generate high-frequency vertical vibration. Compared with traditional vibratory motors, this method can provide higher vibration frequency and amplitude, effectively breaking the cohesion of concrete and accelerating the unloading speed. The setting of the movable column and the first spring ensures the stability of vibration and avoids the hopper from shaking. The cooperation of the hydraulic cylinder with the connecting rod and the crossbeam can flexibly adjust the discharge angle of the hopper to adapt to different unloading needs. This solves the problems of poor vibration effect and inconvenient angle adjustment in traditional devices, improves unloading efficiency, and reduces concrete residue.

[0020] 2. In this disclosure, the blocking assembly achieves the closing and opening of the lower end of the hopper by rotating the blocking plate and the rotating shaft. Under normal conditions, the blocking plate closes the outlet under the action of gravity to prevent premature concrete leakage. When unloading is required, an external force pushes the blocking plate to rotate, and the limit frame disengages from the locking block. After unloading is completed, the third spring pushes the locking block to reset, and the locking block locks the limit frame, so that the blocking plate closes again. This assembly has a simple and reliable structure, can effectively control the unloading process, avoid concrete leakage, and ensure the controllability and safety of unloading. At the same time, it is easy to install and maintain, which improves the practicality of the device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0023] Figure 2 This is an isometric drawing of the present disclosure;

[0024] Figure 3 This is an isometric sectional view of the present disclosure;

[0025] Figure 4 This is another isometric sectional view of this disclosure;

[0026] Figure 5 Appendix to this disclosure Figure 3Enlarged view of part A in the middle;

[0027] In the diagram: 1. Receiving hood; 2. Outer frame; 3. Sliding hopper; 4. Support column; 5. Vibrating discharge assembly; 5-1. Transmission groove; 5-2. Transmission column; 5-3. Connecting frame; 5-4. Drive motor; 5-5. Eccentric shaft; 5-6. Connecting rod; 5-7. Movable column; 5-8. Connecting plate; 5-9. First spring; 5-10. Fixing block; 5-11. Connecting rod; 5-12. Cross frame; 5-13. Second spring; 5-14. Hydraulic cylinder; 5-15. Connecting block; 6. Blocking assembly; 6-1. Blocking plate; 6-2. Protrusion; 6-3. Movable cavity; 6-4. Locking block; 6-5. Third spring; 6-6. Limiting frame; 7. Mounting plate; 8. Mounting hole. Detailed Implementation

[0028] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0029] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0030] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0031] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0033] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] like Figures 1-5 As shown, it illustrates a vibratory unloading device for a concrete mixer truck according to an embodiment of the present disclosure, comprising:

[0035] The material receiving cover 1, the outer frame 2, and the sliding hopper 3 are arranged on the outer frame 2;

[0036] The support column 4 and the vibrating discharge assembly 5 are provided. The support column 4 is rotatably connected to the outer frame 2, and the vibrating discharge assembly 5 is disposed between the support column 4 and the sliding hopper 3.

[0037] Blocking component 6, the blocking component 6 is disposed at the lower end of the sliding hopper 3;

[0038] The vibrating discharge assembly 5 includes a transmission groove 5-1, which is formed inside the upper end of the support column 4. A transmission column 5-2 is vertically and movably connected inside the transmission groove 5-1. A connecting frame 5-3 is provided at the bottom of the sliding hopper 3. The connecting frame 5-3 is rotatably connected to the upper end of the transmission column 5-2 via a pin. A drive motor 5-4 is mounted on the support column 4. An eccentric shaft 5-5 is provided at the output end of the drive motor 5-4. A connecting rod 5-6 is rotatably connected to the transmission column 5-2 via a pin. Several movable columns 5-7 are provided on the outer side of the transmission column 5-2. A connecting rod 5-6 is provided on the outer side of the support column 4. Connecting plate 5-8, movable column 5-7 is movably fitted inside connecting plate 5-8, first spring 5-9 is fitted at both ends of movable column 5-7, fixed blocks 5-10 are provided on both sides of sliding hopper 3, connecting rod 5-11 is movably fitted inside fixed block 5-10, cross frame 5-12 is provided at the bottom of connecting rod 5-11, second spring 5-13 is fitted at both ends of connecting rod 5-11, hydraulic cylinder 5-14 is rotatably connected to support column 4 by pin, connecting block 5-15 is provided at the output end of hydraulic cylinder 5-14, connecting block 5-15 is rotatably connected to the bottom of cross frame 5-12 by pin.

[0039] In some examples, a vibrating discharge assembly 5 is designed to adjust the discharge angle of the hopper 3 and to accelerate the discharge speed through vertical vibration. This assembly is based on a transmission groove 5-1 at the upper end of the support column 4. A vertically movable transmission column 5-2 within the transmission groove 5-1 can move axially. A connecting frame 5-3 at the bottom of the hopper 3 is rotatably connected to the upper end of the transmission column 5-2 via a pin, forming a movable connection structure. A drive motor 5-4 mounted on the support column 4 drives an eccentric shaft 5-5 to rotate. The eccentric shaft 5-5 is rotatably connected to the transmission column 5-2 via a connecting rod 5-6. When the eccentric shaft 5-5 rotates, it pushes the transmission column 5-2 to perform vertical reciprocating motion within the transmission groove 5-1 via the connecting rod 5-6, thereby causing the hopper 3 to vibrate vertically. The vibration frequency can be controlled by adjusting the motor speed, promoting rapid concrete flow.

[0040] The movable column 5-7 on the outside of the transmission column 5-2 is movably fitted inside the connecting plate 5-8. The first springs 5-9 at the upper and lower ends play a buffering and resetting role to ensure the stability of vibration. The connecting rod 5-11 is movably fitted inside the fixed blocks 5-10 on both sides of the sliding hopper 3. The bottom crossbar 5-12 is rotatably connected to the connecting block 5-15 at the output end of the hydraulic cylinder 5-14 through a pin. When the hydraulic cylinder 5-14 extends or retracts, it can push the crossbar 5-12 to drive the sliding hopper 3 to rotate around the connecting frame 5-3, so as to realize the flexible adjustment of the discharge angle within a certain range.

[0041] Through the vertical vibration driven by the eccentric shaft 5-5, the angle adjustment controlled by the hydraulic cylinder 5-14, and the buffering and stabilizing effect of the spring, the vibrating discharge assembly 5 can efficiently adjust the discharge angle of the sliding hopper 3 and maintain vertical vibration, thereby accelerating the concrete unloading speed.

[0042] like Figures 1-5 As shown in the figure, the blocking assembly 6 in this embodiment includes a blocking plate 6-1. The blocking plate 6-1 is rotatably connected to the lower end of the sliding hopper 3 via a rotating shaft. A protrusion 6-2 is provided on one side of the sliding hopper 3. A movable cavity 6-3 is opened in the side end face of the protrusion 6-2. A locking block 6-4 is movably fitted in the movable cavity 6-3. A third spring 6-5 is connected between the locking block 6-4 and the movable cavity 6-3. A limit frame 6-6 is provided at one end of the rotating shaft of the blocking plate 6-1. The limit frame 6-6 is fitted on the locking block 6-4.

[0043] In some examples, a blocking assembly 6 is designed to seal the lower end of the hopper 3 and prevent premature concrete leakage. This assembly centers on a blocking plate 6-1 rotatably connected to the lower end of the hopper 3 via a rotating shaft. Under normal conditions, the blocking plate 6-1 remains horizontal under gravity, sealing the outlet of the hopper 3. A third spring 6-5 provides elastic support within the movable cavity 6-3, which is located within the protrusion 6-2 on one side of the hopper 3. When the blocking plate 6-1 needs to be opened for unloading, external force pushes the blocking plate 6-1 to rotate around the rotating shaft, causing the limiting frame 6-6 to rotate and disengage from the limiting block 6-4. After unloading, the third spring 6-5 pushes the locking block 6-4 back to its original position, locking the limiting frame 6-6 and returning the blocking plate 6-1 to its closed position, ensuring a tight seal at the lower end of the hopper 3. Through the rotational connection between the baffle plate 6-1 and the rotating shaft, the cooperation between the locking block 6-4 and the limiting frame 6-6, and the reset action of the third spring 6-5, the blocking assembly 6 can reliably seal the lower end of the sliding hopper 3, ensuring the controllability and safety of the unloading process.

[0044] For example, such as Figure 1 As shown, mounting plates 7 are provided on both sides of the receiving cover 1, and a number of mounting holes 8 are provided on both the mounting plates 7 and the surface of the outer frame 2.

[0045] In some examples, the mounting plate 7 and the outer frame 2 can be connected and fixed to the concrete mixer truck by providing mounting plate 7 and mounting holes 8.

[0046] For example, such as Figure 4 As shown, both the transmission groove 5-1 and the transmission column 5-2 have polygonal cross-sections.

[0047] In some examples, the polygonal structure ensures that the transmission column 5-2 does not rotate during its vertical up-and-down movement within the transmission groove 5-1.

[0048] In actual use: the receiving hood 1 is fixed to the concrete mixer truck via the mounting plate 7 and mounting holes 8. The outer frame 2 is connected to the receiving hood 1. The support column 4 is rotatably fitted inside the outer frame 2. The sliding hopper 3 is set on the outer frame 2 and connected to the upper pin of the transmission column 5-2 via the connecting frame 5-3. The drive motor 5-4 is installed on the support column 4 and its output end is connected to the eccentric shaft 5-5. The eccentric shaft 5-5 is connected to the pin of the transmission column 5-2 via the connecting rod 5-6. The movable column 5-7 is fitted outside the transmission column 5-2 and located inside the connecting plate 5-8. The first spring 5-9 is installed at the upper and lower ends of the movable column 5-7. The fixing block 5-10 is set on both sides of the sliding hopper 3. The connecting rod 5-11 is movably fitted inside the fixing block 5-10 and its bottom is connected to the cross frame 5-12. Springs 5-13 are installed at both ends of connecting rod 5-11. Hydraulic cylinder 5-14 is pin-connected to support column 4 and its output end is connected to cross frame 5-12 pin-connected via connecting block 5-15. Baffle plate 6-1 is rotatably connected to the lower end of sliding hopper 3 via rotating shaft. Clamping block 6-4 is movably fitted in movable cavity 6-3 of protrusion 6-2 and connected to movable cavity 6-3 via third spring 6-5. Limiting frame 6-6 is fitted on clamping block 6-4. In use, drive motor 5-4 drives eccentric shaft 5-5 to rotate. Through connecting rod 5-6, transmission column 5-2 moves vertically back and forth in transmission groove 5-1, causing sliding hopper 3 to vibrate. Hydraulic cylinder 5-14 extends and retracts to adjust the discharge angle of sliding hopper 3. Baffle plate 6-1 is controlled to open and close via clamping block 6-4 and limiting frame 6-6.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A vibratory unloading device for a concrete mixer truck, characterized in that, include: The material receiving cover (1), the outer frame (2), and the sliding hopper (3) are arranged on the outer frame (2); The support column (4) and the vibrating discharge assembly (5) are provided. The support column (4) is rotatably connected to the outer frame (2). The vibrating discharge assembly (5) is located between the support column (4) and the sliding hopper (3). A blocking component (6) is disposed at the lower end of the hopper (3); The vibrating discharge assembly (5) includes a transmission groove (5-1), which is opened in the upper end of the support column (4). A transmission column (5-2) is vertically and movably connected in the transmission groove (5-1). A connecting frame (5-3) is provided at the bottom of the sliding hopper (3). The connecting frame (5-3) is rotatably connected to the upper end of the transmission column (5-2) by a pin. A drive motor (5-4) is installed on the support column (4). An eccentric shaft (5-5) is provided at the output end of the drive motor (5-4). A connecting rod (5-6) is rotatably connected to the transmission column (5-2) by a pin.

2. The vibratory unloading device for a concrete mixer truck according to claim 1, characterized in that, A plurality of movable columns (5-7) are provided on the outside of the transmission column (5-2), and a connecting plate (5-8) is provided on the outside of the support column (4). The movable column (5-7) is movably fitted into the connecting plate (5-8), and a first spring (5-9) is fitted on both the upper and lower ends of the movable column (5-7).

3. The vibratory unloading device for a concrete mixer truck according to claim 2, characterized in that, The hopper (3) is provided with fixing blocks (5-10) on both sides. A connecting rod (5-11) is movably connected inside the fixing block (5-10). A crossbar (5-12) is provided at the bottom of the connecting rod (5-11). A second spring (5-13) is fitted at both ends of the connecting rod (5-11).

4. A vibratory unloading device for a concrete mixer truck according to claim 3, characterized in that, A hydraulic cylinder (5-14) is rotatably connected to the support column (4) via a pin. A connecting block (5-15) is provided at the output end of the hydraulic cylinder (5-14). The connecting block (5-15) is rotatably connected to the bottom of the cross frame (5-12) via a pin.

5. A vibratory unloading device for a concrete mixer truck according to claim 1, characterized in that, The blocking assembly (6) includes a blocking plate (6-1), which is rotatably connected to the lower end of the sliding hopper (3) via a rotating shaft. A protrusion (6-2) is provided on one side of the sliding hopper (3), and a movable cavity (6-3) is opened in the side end face of the protrusion (6-2).

6. A vibratory unloading device for a concrete mixer truck according to claim 5, characterized in that, The movable cavity (6-3) is fitted with a locking block (6-4), and a third spring (6-5) is connected between the locking block (6-4) and the movable cavity (6-3). A limit bracket (6-6) is provided at one end of the rotating shaft of the blocking plate (6-1), and the limit bracket (6-6) is fitted on the locking block (6-4).

7. A vibratory unloading device for a concrete mixer truck according to claim 1, characterized in that, The receiving cover (1) has mounting plates (7) on both sides, and the mounting plates (7) and the outer frame (2) have several mounting holes (8) on their surfaces.

8. A vibratory unloading device for a concrete mixer truck according to claim 1, characterized in that, Both the transmission groove (5-1) and the transmission column (5-2) have polygonal cross-sections.

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