Concrete in-transit control device of concrete mixer truck and concrete mixer truck
By improving the hydraulic system and real-time monitoring technology, the problem of inconsistent performance of concrete mixer trucks during transit has been solved, achieving uniform mixing of concrete and automatic adjustment of slump, thus ensuring efficient operation at the construction site.
Patent Information
- Application Number
- CN202422817350.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing concrete mixer trucks cannot guarantee the consistency of concrete performance from the factory to the construction site, resulting in changes in slump during transportation, which makes it difficult to adjust the slump on site, delays the construction period, and increases waste.
An improved hydraulic system is adopted, including an oil supply control circuit for an accumulator, a relief valve, and a throttle valve. Combined with a first pressure transmitter and a regulating mechanism, the pressure value at the hydraulic motor inlet is monitored in real time. The slump of the concrete is adjusted by adding a viscosity modifier to ensure uniformity and quality during transportation.
This ensures consistent concrete performance from the factory to the construction site, shortens on-site work time, and reduces waste and the need for manual adjustments.
Smart Images
Figure CN223519937U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to concrete technical field especially relates to a concrete in -transit control device and concrete mixer truck of concrete mixer truck. BACKGROUND
[0002] The production process of the traditional concrete mixing station is generally as follows: batching, preliminary mixing, testing slump, concrete into tank, mixer truck transportation, on-site measurement of delivery slump, adding water (or water reducing agent) and unloading according to the measured slump.
[0003] When the concrete is transported, the concrete is continuously stirred to ensure that the transported concrete does not solidify, but the existing mixer truck cannot guarantee the consistency of the performance of the concrete from the factory to the construction site, which causes the workability to change easily during the transportation process, and manual slump test and adjustment are needed after the transportation to the construction site, resulting in many problems such as great difficulty in on-site slump adjustment, delay of construction period, and more waste material. UTILITY MODEL CONTENT
[0004] The utility model discloses a kind of concrete in-transit control device and concrete mixer truck of concrete mixer truck, to the existing technical status, it is provided that the purpose is to guarantee the uniformity and quality of concrete mixing, and adjust slump according to needs during transportation, guarantee the consistency of the performance of the concrete from the factory to the construction site.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme:
[0006] Firstly, the utility model provides a kind of concrete in-transit control device of concrete mixer truck, including mixing tank and the hydraulic system for driving the rotation of the mixing tank, the hydraulic system includes oil pump, hydraulic motor and the oil circuit between the two,
[0007] The oil circuit includes oil supply control oil circuit, the oil supply control oil circuit is connected with the oil outlet of the oil pump and the oil inlet of the hydraulic motor respectively, energy accumulator, overflow valve and throttle valve are sequentially arranged on the oil supply control oil circuit along the delivery direction of hydraulic oil, first pressure transmitter for monitoring the pressure value of the oil inlet is arranged between the throttle valve and the hydraulic motor,
[0008] The control device is also provided with adjusting mechanism for adding viscosity adjusting agent into the mixing tank according to the pressure value.
[0009] In some embodiments, the control device further includes a controller electrically connected with the first pressure transmitter and the adjusting mechanism respectively.
[0010] In some embodiments, the controller comprises a data conversion module for converting the pressure value collected by the first pressure transmitter into concrete slump.
[0011] In some embodiments, a second pressure transmitter is arranged between the overflow valve and the throttle valve.
[0012] In some embodiments, an oil tank is further provided, and the oil pump and the overflow valve are respectively connected to the oil tank.
[0013] In some embodiments, the adjusting mechanism comprises a first adjusting component for adding water into the mixing tank and / or a second adjusting component for adding water reducing agent into the mixing tank.
[0014] In some embodiments, the oil circuit further comprises a three-way valve, which is respectively connected to the oil outlet of the oil pump and the oil supply control oil circuit.
[0015] In some embodiments, a servo electric cylinder is connected to the oil pump for adjusting the opening degree of the oil pump.
[0016] In some embodiments, a speed reducer is connected to the transmission shaft of the hydraulic motor, and the speed reducer is drivingly connected to the mixing tank.
[0017] Secondly, the utility model further provides a kind of concrete mixer truck, including the concrete in route control device of above-mentioned one kind of concrete mixer truck.
[0018] The utility model has the advantages of:
[0019] The utility model discloses, one aspect, to the hydraulic system is improved, wherein, in the oil supply control oil circuit along its hydraulic oil's delivery direction is equipped with energy accumulator, overflow valve and throttle valve in proper order, in the use process, hydraulic oil is from the oil outlet of oil pump and is sent to the oil inlet of hydraulic motor through the oil supply control oil circuit, in the oil supply control oil circuit, the energy accumulator with the overflow valve under the action of hydraulic oil, make oil pressure keep stable, subsequently adjust the flow through throttle valve, thereby can provide the oil pressure source with stable pressure and flow for hydraulic motor, ensure the stability of stirring tank rotation, guarantee the uniformity and quality of concrete mixing, on the other hand, on the basis that the oil supply control oil circuit can provide the oil pressure source with stable pressure and flow for hydraulic motor, set up first pressure transmitter, thereby can better carry out real time monitoring to the pressure value of hydraulic motor oil inlet, because the correlation between the pressure value of hydraulic motor oil inlet and the slump of concrete, the pressure value of hydraulic motor oil inlet monitored through first pressure transmitter can indirectly monitor the slump change of concrete in the transportation, and then make the adjusting mechanism can add viscosity adjusting agent to the stirring tank according to need, adjust the slump, guarantee the consistency of concrete from factory to construction site performance, shorten the construction site operation time. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the structural schematic diagram of concrete in -route control device of concrete mixing truck of the utility model embodiment 1. DETAILED DESCRIPTION
[0021] The utility model will be further explained in connection with the drawings and the embodiment:
[0022] Embodiment 1
[0023] Referring to Figure 1 The utility model discloses a kind of concrete in -route control device of concrete mixing truck, including stirring tank 1 and the hydraulic system for driving the stirring tank 1 rotation, the hydraulic system includes oil pump 21, hydraulic motor 22 and the oil circuit between them,
[0024] The oil circuit includes oil supply control oil circuit 23, the oil supply control oil circuit 23 is connected with the oil outlet of the oil pump 21 and the oil inlet of the hydraulic motor 22 respectively, energy accumulator 231, overflow valve 232 and throttle valve 234 are sequentially arranged on the oil supply control oil circuit 23 along the delivery direction of hydraulic oil, first pressure transmitter 235 for monitoring the pressure value of the oil inlet is arranged between the throttle valve 234 and the hydraulic motor 22,
[0025] The control device is further provided with adjusting mechanism 3 for adding viscosity adjusting agent into the stirring tank 1 according to the pressure value.
[0026] In this embodiment, on one hand, the hydraulic system is improved, wherein the accumulator 231, the overflow valve 232 and the throttle valve 234 are sequentially arranged along the conveying direction of the hydraulic oil on the oil supply control oil way 23. In use, the hydraulic oil flows from the oil outlet of the oil pump 21 to the oil inlet of the hydraulic motor 22 through the oil supply control oil way 23. In the oil supply control oil way 23, the hydraulic oil is stabilized by the accumulator 231 and the overflow valve 232, and then the flow is adjusted by the throttle valve 234, so that the hydraulic motor 22 can be provided with an oil pressure source with stable pressure and flow, ensuring the stability of the rotation of the mixing tank 1 and the uniformity and quality of the concrete mixing. On the other hand, based on the fact that the oil supply control oil way 23 can provide the hydraulic motor 22 with an oil pressure source with stable pressure and flow, the first pressure transmitter 235 is arranged, so that the pressure value of the oil inlet of the hydraulic motor 22 can be better monitored in real time. Since there is a correlation between the pressure value of the oil inlet of the hydraulic motor 22 and the slump of the concrete, the pressure value of the oil inlet of the hydraulic motor 22 monitored by the first pressure transmitter 235 can indirectly monitor the change of the slump of the concrete during transportation, so that the adjusting mechanism 3 can add viscosity adjusting agent into the mixing tank 1 according to the need, adjust the slump of the concrete, ensure the consistency of the performance of the concrete from the factory to the construction site, and shorten the operation time at the construction site.
[0027] The viscosity adjusting agent can be water or a water reducing agent.
[0028] As shown in Figure 1 The overflow valve 232 and the throttle valve 234 are provided with the second pressure transmitter 233.
[0029] Through the arrangement of the second pressure transmitter 233, the pressure of the hydraulic oil before passing through the throttle valve 234 is monitored in real time, providing feedback reference information for the adjustment of the throttle valve 234, and improving the stability and response speed of the hydraulic system.
[0030] As shown in Figure 1 The oil pump 21 and the overflow valve 232 are respectively connected with the oil tank 25.
[0031] The adjusting mechanism 3 comprises a first adjusting assembly for adding water into the mixing tank 1 and / or a second adjusting assembly for adding a water reducing agent into the mixing tank 1.
[0032] Through the cooperation of the first adjusting assembly and the second adjusting assembly, the adjusting mechanism 3 can flexibly adjust the slump of the concrete according to the need, ensuring the consistency of the performance of the concrete from the factory to the construction site.
[0033] As shown in Figure 1As shown, the oil circuit further comprises a three-way valve 26, which is connected with the oil outlet of the oil pump 21 and the oil supply control oil circuit 23 respectively.
[0034] The three-way valve 26 can be a manual three-way valve.
[0035] As shown, Figure 1 As shown, the oil pump 21 is connected with a servo electric cylinder 24 for adjusting the opening degree of the oil pump 21. By adjusting the opening degree of the oil pump 21 through the servo electric cylinder 24, the flow and pressure of the hydraulic oil can be preliminarily adjusted and controlled according to the demand, and the flexibility of the control system is higher.
[0036] The transmission shaft of the hydraulic motor 22 is connected with a speed reducer (not shown), which is in transmission connection with the mixing tank 1.
[0037] The hydraulic system is driven by the transmission shaft of the hydraulic motor 22 to the speed reducer, and the high-speed low-torque output of the hydraulic motor 22 is converted into the low-speed high-torque required by the mixing tank 1 through the speed reducer.
[0038] The embodiment also discloses a concrete mixer truck comprising the concrete in-transit control device of the concrete mixer truck.
[0039] Embodiment 2
[0040] The difference between the embodiment and the embodiment 1 is that the control device further comprises a controller (not shown), which is electrically connected with the first pressure transmitter 235 and the adjusting mechanism 3 respectively.
[0041] In use, the controller receives the pressure information collected by the first pressure transmitter 235, converts the pressure information into the slump of the concrete, and controls the adjusting mechanism 3 to add the viscosity adjusting agent into the mixing tank 1 when the slump exceeds the target range, so as to make the consistency of the concrete from the factory to the site.
[0042] In some embodiments, the controller comprises a data conversion module for converting the pressure value collected by the first pressure transmitter 235 into the slump of the concrete.
[0043] As an example, the corresponding slump of the concrete of the pressure value of the oil inlet of the hydraulic motor 22 can be tested in advance, a slump curve is drawn and stored in the controller, and the controller can convert the pressure information collected by the first pressure transmitter 235 into the corresponding slump of the concrete after receiving the pressure information, and then controls the adjusting mechanism 3 to add the corresponding amount of viscosity adjusting agent into the mixing tank 1 according to the adjustment demand of the slump.
[0044] Of course, the above diagram is only a preferred embodiment of the present application, and does not limit the use range of the present application, therefore, any equivalent change based on the principle of the present application should be included in the protection scope of the present application.
Claims
1. A concrete in-transit control device for a concrete mixer truck, comprising a mixing drum and a hydraulic system for driving rotation of the mixing drum, characterized by, The hydraulic system comprises an oil pump, a hydraulic motor and an oil circuit arranged between the oil pump and the hydraulic motor, The oil circuit comprises an oil supply control circuit, which is connected with an oil outlet of the oil pump and an oil inlet of the hydraulic motor respectively, and is provided with an accumulator, a relief valve and a throttle valve in sequence along a conveying direction of hydraulic oil, and a first pressure transmitter is arranged between the throttle valve and the hydraulic motor for monitoring a pressure value of the oil inlet. The control device is further provided with an adjusting mechanism for adding a viscosity modifier into the mixing drum according to the pressure value.
2. A concrete-in-transit control device for a concrete mixer truck according to claim 1, characterized by The control device further comprises a controller which is electrically connected with the first pressure transmitter and the adjusting mechanism respectively.
3. A concrete-in-transit control device for a concrete mixer truck as defined in claim 2, wherein The controller comprises a data conversion module for converting the pressure value collected by the first pressure transmitter into a slump of concrete.
4. A concrete-in-transit control device for a concrete mixer truck as set forth in claim 1, wherein A second pressure transmitter is arranged between the relief valve and the throttle valve.
5. A concrete-in-transit control device for a concrete mixer truck as defined in claim 1, wherein An oil tank is further provided, and the oil pump and the relief valve are connected with the oil tank respectively.
6. A concrete-in-transit control device for a concrete mixer truck as defined in claim 5, wherein The adjusting mechanism comprises a first adjusting component for adding water into the mixing drum and / or a second adjusting component for adding a water reducing agent into the mixing drum.
7. A concrete-in-transit control device for a concrete mixer truck as defined in claim 1 wherein, The oil circuit further comprises a three-way valve which is connected with the oil outlet of the oil pump and the oil supply control circuit respectively.
8. A concrete-in-transit control device for a concrete mixing truck as defined in claim 1 wherein, The oil pump is connected with a servo electric cylinder for adjusting an opening degree of the oil pump.
9. A concrete-in-transit control apparatus for a concrete mixing truck as defined in claim 1 wherein, A transmission shaft of the hydraulic motor is connected with a speed reducer which is drivingly connected with the mixing drum.
10. A concrete mixer truck characterized by, A concrete in-transit control device of a concrete mixer truck comprising the concrete in-transit control device according to any one of claims 1 to 9.