CN210949372U - Dual real-time protection system of concrete pump hopper stirring motor - Google Patents
Dual real-time protection system of concrete pump hopper stirring motor Download PDFInfo
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- CN210949372U CN210949372U CN201922048169.5U CN201922048169U CN210949372U CN 210949372 U CN210949372 U CN 210949372U CN 201922048169 U CN201922048169 U CN 201922048169U CN 210949372 U CN210949372 U CN 210949372U
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Abstract
The utility model discloses a double real-time protection system of a concrete pump hopper stirring motor, which comprises an energy loop, an execution loop and a control loop; the energy source loop comprises a motor, a hydraulic pump and a hydraulic oil tank; the execution loop comprises a hydraulic on-off valve, an electromagnetic directional valve and a stirring motor; the control loop comprises a control unit and an angle sensor, and the angle sensor is arranged on a rotating shaft of the concrete pump hopper screen and used for detecting the opening angle of the concrete pump hopper screen; the control unit is respectively electrically connected with the electromagnetic coil of the electromagnetic reversing valve and the angle sensor, and when the opening angle is larger than a set value, the control unit controls the electromagnetic coil of the electromagnetic reversing valve to lose power. Adopt the utility model discloses a concrete pump hopper agitator motor's dual real-time protection system can prevent when the hopper is opened, takes place the maloperation to concrete agitator motor, and the danger that probably produces has strengthened operating personnel safety protection.
Description
Technical Field
The utility model relates to a concrete pump hopper mixing system, in particular to concrete pump hopper mixing motor's dual real-time protection system.
Background
Modern concrete engineering machinery comprises multiple technologies such as mechanical technology, hydraulic technology, electrical technology and control technology, and products and systems of the modern concrete engineering machinery are integrated with the multiple technologies.
With the high-speed development of national economy, concrete engineering machinery is increasingly applied in the fields of house construction, mine support, pit backfill, tunnel construction, road/railway construction, bridge construction and the like. The concrete pump hopper stirring device adopts a hydraulic system which adopts a hydraulic pump to be connected with a control valve block and drives a hydraulic stirring motor, and the system has the defects of easy misoperation, poor protection on operators and the like. In the future, the matched hydraulic equipment is developed towards the directions of electrification control, misoperation prevention, high safety and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a concrete pump hopper agitator motor's dual real-time protection system overcomes current concrete pump agitator motor's hydraulic system manual control, easy maloperation, to shortcomings such as operating personnel protectiveness difference.
In order to achieve the purpose, the double real-time protection system of the concrete pump hopper stirring motor comprises an energy loop, an execution loop and a control loop; the energy source loop comprises a motor, a hydraulic pump and a hydraulic oil tank, the motor is connected with the hydraulic pump, and an oil suction port of the hydraulic pump is connected with the hydraulic oil tank; the execution loop comprises a hydraulic on-off valve, an electromagnetic directional valve and a stirring motor, an oil outlet of the hydraulic pump is connected with an oil inlet of the hydraulic on-off valve, an oil outlet of the hydraulic on-off valve is connected with an oil inlet of the electromagnetic directional valve, a first oil outlet of the electromagnetic directional valve is connected with an oil inlet of the stirring motor, a second oil outlet of the electromagnetic directional valve is respectively connected with an oil return port of the stirring motor and the hydraulic oil tank, an oil drainage port of the stirring motor is connected with the hydraulic oil tank, and the electromagnetic directional valve is configured as follows: when the electromagnetic coil of the electromagnetic reversing valve is electrified, the oil inlet of the electromagnetic reversing valve is communicated with the first oil outlet, and when the electromagnetic coil of the electromagnetic reversing valve is not electrified, the oil inlet of the electromagnetic reversing valve is communicated with the second oil outlet; the control loop comprises a control unit and an angle sensor, and the angle sensor is arranged on a rotating shaft of the concrete pump hopper screen and used for detecting the opening angle of the concrete pump hopper screen; the control unit is respectively electrically connected with the electromagnetic coil of the electromagnetic reversing valve and the angle sensor, and when the opening angle is larger than a set value, the control unit controls the electromagnetic coil of the electromagnetic reversing valve to lose power.
Preferably, the hydraulic on-off valve is arranged on the lower portion of a connecting shaft of a screen of the concrete pump hopper, and when the concrete pump hopper is in a working state, the screen can press down a push rod of the hydraulic on-off valve, so that an oil inlet and an oil outlet of the hydraulic on-off valve are communicated.
Preferably, an oil outlet of the hydraulic pump is connected with an overflow valve, and an oil return port of the overflow valve is connected with the hydraulic oil tank.
Preferably, an oil outlet of the hydraulic pump is connected with a pressure measuring meter.
Preferably, the electromagnetic directional valve is a two-position three-way valve or a two-position four-way valve, and when the electromagnetic directional valve is the two-position four-way valve, an oil return port of the electromagnetic directional valve is blocked.
Preferably, the hydraulic pump is a variable displacement pump or a fixed displacement pump, and the hydraulic pump is driven by the motor.
Adopt the utility model discloses a concrete pump hopper agitator motor's dual real-time protection system, the hydraulic system who has overcome current concrete pump hopper agitator motor easily the maloperation, to shortcomings such as operating personnel protectiveness difference, can prevent when the hopper is opened, owing to take place the maloperation, danger that probably produces has strengthened the safety protection to operating personnel.
Drawings
Fig. 1 is a schematic diagram of the dual real-time protection system of the concrete pump hopper stirring motor of the present invention.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the drawings.
As shown in figure 1, the dual real-time protection system of the concrete pump hopper stirring motor of the utility model comprises an energy loop, an execution loop and a control loop.
The energy source loop comprises a motor 1, a hydraulic pump 2 and a hydraulic oil tank 4, wherein the motor 1 is connected with the hydraulic pump 2, and an oil suction port S of the hydraulic pump 2 is connected with the hydraulic oil tank 4. The hydraulic pump 2 is a variable displacement pump or a fixed displacement pump, and the hydraulic pump 2 is driven by the motor 1.
The execution loop comprises a hydraulic on-off valve 5, an electromagnetic directional valve 7 and a stirring motor 8, an oil outlet B1 of the hydraulic pump 2 is connected with an oil inlet P1 of the hydraulic on-off valve 5, an oil outlet A1 of the hydraulic on-off valve 5 is connected with an oil inlet P2 of the electromagnetic directional valve 7, a first oil outlet A2 of the electromagnetic directional valve 7 is connected with an oil inlet A3 of the stirring motor 8, a second oil outlet B2 of the electromagnetic directional valve 7 is respectively connected with an oil return port B3 of the stirring motor 8 and the hydraulic oil tank 4, an oil drain port L of the stirring motor 8 is connected with the hydraulic oil tank 4, and the electromagnetic directional valve 7 is configured as: when the electromagnetic coil of the electromagnetic directional valve 7 is powered on, the oil inlet P2 of the electromagnetic directional valve 7 is communicated with the first oil outlet A2, and when the electromagnetic coil of the electromagnetic directional valve is powered off, the oil inlet P2 of the electromagnetic directional valve 7 is communicated with the second oil outlet B2.
The control loop comprises a control unit 10 and an angle sensor 9, wherein the angle sensor 9 is arranged on a rotating shaft of the concrete pump hopper screen and used for detecting the opening angle of the concrete pump hopper screen; the control unit 10 is electrically connected with the electromagnetic coil of the electromagnetic directional valve 7 and the angle sensor 9 respectively, and when the opening angle is larger than a set value, the control unit 10 controls the electromagnetic coil of the electromagnetic directional valve 7 to lose power. When the opening angle is smaller than the set value, the electromagnetic coil of the electromagnetic directional valve 7 can be electrified to work.
The hydraulic on-off valve 5 is arranged on the lower portion of a connecting shaft of a screen of the concrete pump hopper, and when the concrete pump hopper is in a working state, the screen can press down a push rod of the hydraulic on-off valve 5 under the action of gravity, so that an oil inlet P1 and an oil outlet A1 of the hydraulic on-off valve 5 are communicated. When the concrete pump hopper is in an open state, the screen leaves the push rod of the hydraulic on-off valve 5, and the hydraulic on-off valve 5 resets under the action of a spring force, so that an oil inlet P1 and an oil outlet A1 of the hydraulic on-off valve 5 are disconnected. The screen connecting shaft is used for fixing the screen in the concrete pump hopper. The hydraulic on-off valve 5 is a two-position two-way valve.
Through the hydraulic on-off valve 5, the push rod of the hydraulic on-off valve 5 is pressed down by utilizing the gravity action of the screen, so that the on-off of a hydraulic oil way is controlled, the principle is simple, the realization is easy, and the installation space is sufficient; the opening angle of the concrete pump hopper screen is detected through an angle sensor 9, and when the opening angle is larger than a set value, the control unit 10 powers off the electromagnetic directional valve 7, so that the double protection purpose of a hydraulic circuit and an electric circuit is achieved; the electromagnetic coil of the electromagnetic reversing valve 7 is powered on and powered off to control the electromagnetic reversing valve 7 to reverse, so that the hopper stirring motor 8 is controlled to rotate, the electrification control of the concrete pump hopper stirring device is realized, and the operability is greatly improved.
An oil outlet B1 of the hydraulic pump 2 is connected with an overflow valve 6, and an oil return port of the overflow valve 6 is connected with the hydraulic oil tank 4. The overflow valve 6 prevents the oil outlet pressure of the hydraulic pump 2 from being too high, and plays a role in protecting hydraulic system elements.
And an oil outlet B1 of the hydraulic pump 2 is connected with a pressure measuring meter 3 for monitoring the pressure of the oil output by the hydraulic pump 2.
The electromagnetic directional valve 7 is a two-position three-way valve or a two-position four-way valve, and when the electromagnetic directional valve 7 is the two-position four-way valve, an oil return port T of the electromagnetic directional valve 7 is blocked.
The hydraulic elements are connected by hydraulic hoses or steel pipes.
As described above, exemplary embodiments of the present invention are described in detail with reference to the accompanying drawings. It should be understood that the invention is not intended to be limited to the details shown. Equivalent or similar changes in the structure and features of the exemplary embodiments may be made without departing from the spirit and scope of the invention, which shall also fall within the scope of protection defined by the claims appended hereto.
Claims (6)
1. A double real-time protection system of a concrete pump hopper stirring motor is characterized by comprising an energy loop, an execution loop and a control loop;
the energy source loop comprises a motor, a hydraulic pump and a hydraulic oil tank, the motor is connected with the hydraulic pump, and an oil suction port of the hydraulic pump is connected with the hydraulic oil tank;
the execution loop comprises a hydraulic on-off valve, an electromagnetic directional valve and a stirring motor, an oil outlet of the hydraulic pump is connected with an oil inlet of the hydraulic on-off valve, an oil outlet of the hydraulic on-off valve is connected with an oil inlet of the electromagnetic directional valve, a first oil outlet of the electromagnetic directional valve is connected with an oil inlet of the stirring motor, a second oil outlet of the electromagnetic directional valve is respectively connected with an oil return port of the stirring motor and the hydraulic oil tank, an oil drainage port of the stirring motor is connected with the hydraulic oil tank, and the electromagnetic directional valve is configured as follows: when the electromagnetic coil of the electromagnetic reversing valve is electrified, the oil inlet of the electromagnetic reversing valve is communicated with the first oil outlet, and when the electromagnetic coil of the electromagnetic reversing valve is not electrified, the oil inlet of the electromagnetic reversing valve is communicated with the second oil outlet;
the control loop comprises a control unit and an angle sensor, and the angle sensor is arranged on a rotating shaft of the concrete pump hopper screen and used for detecting the opening angle of the concrete pump hopper screen; the control unit is respectively electrically connected with the electromagnetic coil of the electromagnetic reversing valve and the angle sensor, and when the opening angle is larger than a set value, the control unit controls the electromagnetic coil of the electromagnetic reversing valve to lose power.
2. The dual real-time protection system for the stirring motor of the concrete pump hopper as claimed in claim 1, wherein the hydraulic on-off valve is disposed at a lower portion of a screen connecting shaft of the concrete pump hopper, and when the concrete pump hopper is in a working state, the screen can press down a push rod of the hydraulic on-off valve to communicate an oil inlet and an oil outlet of the hydraulic on-off valve.
3. The dual real-time protection system for the concrete pump hopper mixing motor as recited in claim 1, wherein an oil outlet of said hydraulic pump is connected with an overflow valve, and an oil return port of said overflow valve is connected with said hydraulic oil tank.
4. The dual real-time protection system for the concrete pump hopper mixing motor as recited in claim 1, wherein an oil outlet of said hydraulic pump is connected to a pressure gauge.
5. The dual real-time protection system for the stirring motor of the concrete pump hopper as claimed in claim 1, wherein the electromagnetic directional valve is a two-position three-way valve or a two-position four-way valve, and when the electromagnetic directional valve is a two-position four-way valve, an oil return port of the electromagnetic directional valve is blocked.
6. The dual real-time protection system for the concrete pump hopper mixing motor of claim 1, wherein the hydraulic pump is a variable displacement pump or a fixed displacement pump, and the hydraulic pump is driven by the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922048169.5U CN210949372U (en) | 2019-11-22 | 2019-11-22 | Dual real-time protection system of concrete pump hopper stirring motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922048169.5U CN210949372U (en) | 2019-11-22 | 2019-11-22 | Dual real-time protection system of concrete pump hopper stirring motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210949372U true CN210949372U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922048169.5U Active CN210949372U (en) | 2019-11-22 | 2019-11-22 | Dual real-time protection system of concrete pump hopper stirring motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210949372U (en) |
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2019
- 2019-11-22 CN CN201922048169.5U patent/CN210949372U/en active Active
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