Power device for concrete skip car

Abstract

The invention discloses a power device for a concrete skip car, which comprises a motor main body mounted on the outer side of a concrete skip car main body, a motor seat arranged at the left end of the motor main body, and a rotatable output shaft arranged on the left side of the motor seat, and a shaft seat connected with a stirring shaft is rotationally mounted on the outer side surface of the concrete skip car main body; a connecting sleeve corresponding to the output shaft is fixed to the side face of the shaft seat, and a flat key is installed on the surface of the output shaft. The system further comprises a monitoring system. A power device of an existing concrete skip car is improved, a set of monitoring system is additionally arranged, real-time monitoring and early warning of the concrete coagulation trend can be achieved through cooperative work of the rotating speed sensor and multiple modules, the fault rate of the concrete skip car is effectively reduced, the concrete construction time window is prolonged, and the construction efficiency is improved. And meanwhile, the disassembly and assembly structure of the power device is improved, and later maintenance, disassembly and assembly are facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete mixer trucks, and particularly relates to a power device for a concrete mixer truck. Background Art

[0002] A concrete mixer truck is a truck for temporarily transporting concrete in a construction area. For example, in the existing patent with the publication number CN218614765U, the disclosed "a concrete raw material truck includes a vehicle body, the vehicle body includes a pallet and rollers provided at the bottom of the pallet, and further includes a weighing part provided on the top of the pallet, and a hopper provided on the weighing part. An inlet is provided at the top of the hopper, and a closable outlet is provided at the bottom of the hopper. A stirring part is provided in the hopper to stir the materials in the hopper, and a driving part is provided on the hopper, and the stirring part is connected to the power output end of the driving part", it can be seen that what is described in this application is exactly a common concrete mixer truck;

[0003] In the prior art, the concrete mixer truck generally drives the mixing paddle by an electric motor to prevent the concrete from coagulating, but lacks a real-time monitoring system. When the concrete shows a tendency to coagulate, the stirring resistance increases, resulting in a decrease in the motor speed. However, the traditional power device cannot give an early warning in time, which is likely to cause quality accidents. At the same time, the existing power device also has the problem of inconvenient disassembly, installation and maintenance in the later stage. Therefore, the present invention proposes a power device for a concrete mixer truck. Summary of the Invention

[0004] The purpose of the present invention is to provide a power device for a concrete mixer truck to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A power device for a concrete mixer truck includes

[0006] A motor main body installed on the outer side of the concrete mixer truck main body, a motor base provided at the left end of the motor main body, and a rotatable output shaft provided on the left side of the motor base. And a shaft seat connected to the mixing shaft is rotatably installed on the outer surface of the concrete mixer truck main body. A connection sleeve corresponding to the output shaft is fixed on the side surface of the shaft seat. A flat key is installed on the surface of the output shaft, and a keyway corresponding to the flat key is provided on the inner wall of the connection sleeve;

[0007] It further includes a monitoring system, and the monitoring system includes:

[0008] A rotation speed acquisition module, including a rotation speed sensor installed on the side surface of the motor base and above the output shaft, for real-time acquisition of the rotation speed data of the output shaft;

[0009] A data processing module, which filters, calibrates and stores the original rotation speed signal;

[0010] A threshold determination module compares the real-time rotational speed with a preset reasonable rotational speed range, and generates an abnormal signal when the real-time rotational speed exceeds the preset reasonable rotational speed range value;

[0011] An early warning output module triggers an audible and visual alarm or remotely transmits early warning information according to the abnormal signal, and the early warning output module is connected to an audible and visual alarm installed on the surface of the motor body;

[0012] A power management module provides stable power supply for each module;

[0013] It also includes a convenient disassembly and assembly structure.

[0014] Preferably, the threshold determination module includes a setting trend analysis sub-unit, which determines the concrete setting risk through double determination of the rotational speed decline slope and duration.

[0015] Preferably, the monitoring system further includes a self-learning adaptation unit, which dynamically adjusts the threshold of the reasonable rotational speed range according to historical data.

[0016] Preferably, the monitoring system further includes a data recording unit, which stores rotational speed time series data and abnormal event logs, and supports export for analysis.

[0017] Preferably, the early warning output module further includes:

[0018] A hierarchical early warning mechanism: alarms are divided into three levels according to the degree of rotational speed deviation;

[0019] A wireless transmission unit: transmits the early warning information to a mobile terminal or a monitoring platform in real time;

[0020] A local storage unit: circularly stores the monitoring data of the most recent 72 hours.

[0021] Preferably, the convenient disassembly and assembly structure includes a threaded base rod, a positioning seat, a fastening nut and a side base plate. Two side base plates are symmetrically fixed on the surface of the motor seat. Two threaded base rods are symmetrically fixed on the outer surface of the concrete mixer truck body and are in corresponding positions with the side base plates. The end of the threaded base rod penetrates through the side base plate. The positioning seat is fixed on the surface of the threaded base rod and is on the left side of the side base plate. The fastening nut is threadedly sleeved on the end of the threaded base rod and is pressed and fixed with the right side surface of the side base plate.

[0022] Preferably, a protective rubber ring is installed on the left side surface of the motor seat, and the end of the protective rubber ring is in sliding contact with the surface of the shaft seat.

[0023] Preferably, an integral annular protrusion is provided on the inner wall of the protective rubber ring, and an annular groove corresponding to the annular protrusion is provided on the surface of the shaft seat, and the annular protrusion is embedded in the annular groove.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: By improving the power device of the existing concrete mixer truck, a monitoring system is added thereto, which can realize real-time monitoring and early warning of the concrete setting trend through the cooperation of a rotational speed sensor and multiple modules, effectively reducing the failure rate of the concrete mixer truck, extending the workable time window of the concrete, significantly improving the intelligent level of the equipment and construction safety. At the same time, the disassembly and assembly structure of the power device is improved to facilitate later maintenance disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the present invention;

[0026] Figure 2 is a sectional view of the present invention;

[0027] Figure 3 For the present invention Figure 2 is a partial enlarged view of area A in;

[0028] Figure 4 is a framework diagram of the monitoring system of the present invention;

[0029] Figure 5 For the present invention Figure 3 is a partial enlarged view of area B in;

[0030] In the figure: 1. Motor main body; 11. Motor base; 12. Side substrate; 13. Acousto-optic alarm; 14. Protective rubber ring; 141. Annular protrusion; 15. Output shaft; 151. Flat key; 2. Concrete mixer truck main body; 21. Mixing shaft; 22. Shaft seat; 221. Annular groove; 23. Connecting sleeve; 231. Keyway; 31. Threaded base rod; 32. Positioning seat; 33. Fastening nut; 5. Rotational speed sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1

[0033] Please refer to Figures 1 to 4 , which is the first embodiment of the present invention. This embodiment provides a technical solution: A power device for a concrete mixer truck, including

[0034] The motor main body 1 installed outside the concrete mixer truck main body 2, the motor base 11 provided at the left end of the motor main body 1, and the rotatable output shaft 15 provided on the left side of the motor base 11. A shaft seat 22 connected to the mixing shaft 21 is rotatably installed on the outer surface of the concrete mixer truck main body 2. A connecting sleeve 23 corresponding to the output shaft 15 is fixed on the side surface of the shaft seat 22. A flat key 151 is installed on the surface of the output shaft 15, and a key groove 231 corresponding to the flat key 151 is provided on the inner wall of the connecting sleeve 23. After the motor main body 1 is started later, the output shaft 15 will drive the connecting sleeve 23, the shaft seat 22 and the mixing shaft 21 to rotate together, realizing power output, so as to drive the mixing shaft 21 to mix the concrete inside the concrete mixer truck main body 2;

[0035] It also includes a monitoring system, and the monitoring system includes:

[0036] A rotational speed acquisition module, including a rotational speed sensor 5 installed on the side surface of the motor base 11 and above the output shaft 15, which is used to obtain the rotational speed data of the output shaft 15 in real time;

[0037] A data processing module, which filters, calibrates and stores the original rotational speed signal;

[0038] A threshold determination module, which compares the real-time rotational speed with the preset reasonable rotational speed range. When the real-time rotational speed exceeds the preset reasonable rotational speed range value, an abnormal signal is generated. The preset reasonable rotational speed value is the initial rotational speed threshold set by the upper computer software (usually set to 85%-110% of the rated rotational speed);

[0039] An early warning output module, which triggers an audible and visual alarm or remotely transmits early warning information according to the abnormal signal. The early warning output module is connected to the audible and visual alarm 13 installed on the surface of the motor main body 1. When the rotational speed is monitored to be abnormal, the audible and visual alarm 13 will be started for alarm, predicting the risk of concrete setting, prompting the operator to make construction adjustments in time, effectively reducing the failure rate of the mixer truck, and extending the constructible time window of the concrete mixer truck;

[0040] A power management module, which provides stable power supply for each module;

[0041] The monitoring controller in the monitoring system is embedded in the mixer truck control cabinet, and a 485 communication interface is reserved. After the system runs automatically, the rotational speed data of the rotational speed sensor 5 is collected every 5 seconds and the determination result is refreshed.

[0042] It also includes a convenient disassembly and assembly structure.

[0043] In this embodiment, preferably, the threshold determination module includes a setting trend analysis sub-unit, which determines the risk of concrete setting through the double judgment of the rotational speed drop slope and the duration.

[0044] In this embodiment, preferably, the monitoring system further includes a self-learning adaptation unit, which dynamically adjusts the reasonable rotational speed range threshold according to historical data.

[0045] In this embodiment, preferably, the monitoring system further includes a data recording unit, which stores rotational speed time series data and abnormal event logs and supports export for analysis.

[0046] In this embodiment, preferably, the early warning output module further includes:

[0047] Hierarchical early warning mechanism: Alarm is divided into three levels according to the degree of rotational speed deviation (slight deviation, moderate warning, severe alarm);

[0048] Wireless transmission unit: Real-time transmits the early warning information to the mobile terminal or the monitoring platform;

[0049] Local storage unit: Circularly stores the monitoring data of the most recent 72 hours.

[0050] In this embodiment, preferably, the detachable and installable structure includes a threaded base rod 31, a positioning seat 32, a fastening nut 33 and a side base plate 12. Two side base plates 12 are symmetrically welded and fixed on the surface of the motor base 11. Two threaded base rods 31 are symmetrically welded and fixed on the outer surface of the concrete mixer truck body 2 and the positions correspond to the side base plates 12. The end of the threaded base rod 31 penetrates through the side base plate 12. The positioning seat 32 is welded and fixed on the surface of the threaded base rod 31 and is on the left side of the side base plate 12. The fastening nut 33 is screwed on the end of the threaded base rod 31 and is pressed and fixed with the right side surface of the side base plate 12, realizing the stable fixation of the side base plate 12, the motor base 11 and the motor main body 1. Subsequently, if the motor main body 1 needs to be removed for maintenance, only need to rotate and remove the fastening nut 33, release the block of the side base plate 12, then laterally move the motor main body 1, separate the side base plate 12 from the threaded base rod 31, and separate the output shaft 15 from the connecting sleeve 23, then the motor main body 1 can be directly removed for maintenance.

[0051] Embodiment 2

[0052] Please refer to Figures 1 to 4 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The difference is that a protective rubber ring 14 is installed on the left surface of the motor base 11, and the end of the protective rubber ring 14 is in sliding contact with the surface of the shaft seat 22, so that the protective rubber ring 14 can completely cover structures such as the output shaft 15, the connecting sleeve 23 and the rotational speed sensor 5 inside, playing a certain role in isolation and protection.

[0053] In this embodiment, preferably, an integral annular protrusion 141 is provided on the inner wall of the protective rubber ring 14. Both of them are made of rubber material and will undergo elastic deformation when being squeezed. An annular groove 221 corresponding to the annular protrusion 141 is formed on the surface of the shaft seat 22, and the annular protrusion 141 is embedded in the annular groove 221, which can further improve the sealing performance between the protective rubber ring 14 and the shaft seat 22 without affecting the rotation of the shaft seat 22.

[0054] Although the embodiments of the present invention have been shown and described (see the above detailed description), those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power device for a concrete truck, characterized in that: including a motor main body (1) installed on the outer side of the concrete mixer truck main body (2), a motor base (11) arranged at the left end of the motor main body (1), and a rotatable output shaft (15) arranged on the left side of the motor base (11). A shaft seat (22) connected to a stirring shaft (21) is rotatably installed on the outer surface of the concrete mixer truck main body (2). A connecting sleeve (23) corresponding to the output shaft (15) is fixed on the side surface of the shaft seat (22). A flat key (151) is installed on the surface of the output shaft (15), and a keyway (231) corresponding to the flat key (151) is formed in the inner wall of the connecting sleeve (23); It further includes a monitoring system, and the monitoring system includes: a rotation speed acquisition module, including a rotation speed sensor (5) installed on the side surface of the motor base (11) and above the output shaft (15), for real-time acquisition of the rotation speed data of the output shaft (15); a data processing module, which filters, calibrates, and stores the original rotation speed signal; a threshold determination module, which compares the real-time rotation speed with a preset reasonable rotation speed range, and generates an abnormal signal when the real-time rotation speed exceeds the preset reasonable rotation speed range value; a warning output module, which triggers an audible and visual alarm or remotely transmits a warning message according to the abnormal signal, and the warning output module is connected to an audible and visual alarm (13) installed on the surface of the motor main body (1); a power management module, which provides stable power supply for each module; It further includes a convenient disassembly and assembly structure.

2. The power device for a concrete truck according to claim 1, characterized in that: The threshold determination module includes a condensation trend analysis sub-unit, which determines the concrete condensation risk through the double judgment of the rotation speed decline slope and the duration.

3. The power device for a concrete truck according to claim 1, characterized in that: The monitoring system further includes a self-learning adaptation unit, which dynamically adjusts the threshold of the reasonable rotation speed range according to historical data.

4. A power device for a concrete truck according to claim 1, characterized in that: The monitoring system further includes a data recording unit, which stores the rotation speed time series data and the abnormal event log, and supports export for analysis.

5. A power device for a concrete truck according to claim 1, characterized in that: The warning output module further includes: a hierarchical warning mechanism: alarm in three levels according to the degree of rotation speed deviation; a wireless transmission unit: transmits the warning information to a mobile terminal or a monitoring platform in real time; a local storage unit: circularly stores the monitoring data of the most recent 72 hours.

6. The power device for a concrete truck according to claim 1, characterized in that: The convenient disassembly and assembly structure includes a threaded base rod (31), a positioning seat (32), a fastening nut (33), and a side base plate (12). Two side base plates (12) are symmetrically fixed on the surface of the motor base (11). Two threaded base rods (31) are symmetrically fixed on the outer surface of the concrete mixer truck main body (2) and are in corresponding positions with the side base plates (12). The end of the threaded base rod (31) penetrates through the side base plate (12). The positioning seat (32) is fixed on the surface of the threaded base rod (31) and is on the left side of the side base plate (12). The fastening nut (33) is screwed on the end of the threaded base rod (31) and is pressed and fixed with the right side surface of the side base plate (12).

7. A power device for a concrete truck according to claim 1, characterized in that: A protective rubber ring (14) is installed on the left side surface of the motor base (11), and the end of the protective rubber ring (14) is in sliding contact with the surface of the shaft seat (22).

8. The power device for a concrete truck according to claim 7, characterized in that: The inner wall of the protective rubber ring (14) is provided with an integral annular protrusion (141), and the surface of the shaft seat (22) is provided with an annular groove (221) corresponding to the annular protrusion (141), and the annular protrusion (141) is embedded in the annular groove (221).

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