CN216518559U - Control system for hydraulic drive air compressor - Google Patents
Control system for hydraulic drive air compressor Download PDFInfo
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- CN216518559U CN216518559U CN202122587842.XU CN202122587842U CN216518559U CN 216518559 U CN216518559 U CN 216518559U CN 202122587842 U CN202122587842 U CN 202122587842U CN 216518559 U CN216518559 U CN 216518559U
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Abstract
The utility model provides a control system for a hydraulic drive air compressor, which comprises a signal input module, a control module and a control module, wherein the signal input module comprises a temperature control switch, an air pressure module, an oil pressure module and a circuit on-off module; the control module comprises a controller and a control circuit, and the controller controls and detects through the control circuit; and the execution module comprises a main oil circuit switch, a pressure protection oil circuit switch, a temperature protection oil circuit switch, an air inlet valve plate and a safety valve module, and the controller is in control connection with the main oil circuit switch, the pressure protection oil circuit switch, the temperature protection oil circuit switch, the air inlet valve plate and the safety valve module through a control circuit according to the detection information of the temperature control switch, the air pressure module, the oil pressure module and the circuit on-off module. The utility model has the advantages of safe use, regular pipeline arrangement and low cost.
Description
Technical Field
The utility model relates to the field of air compressors, in particular to a control system for a hydraulic drive air compressor.
Background
The hydraulic drive air compressor is widely applied to hydraulic drilling machines, down-the-hole drilling machines and digging-improving drilling machines, and provides a power air source for slag blowing and slag discharging in the drilling process. In the control mode of the traditional hydraulic air compressor, the following problems exist: (1) the air compressor is only used as a simple hydraulic element, whether the air compressor generates gas or not is controlled only by on-off of hydraulic oil, and when the pressure of the hydraulic oil fluctuates, the pressure of the hydraulic oil entering the air compressor is too high, so that the risk of damage to the air compressor is caused; (2) after the hydraulic oil way is adjusted, along with the change of the working condition of the air compressor, the use requirement of the hydraulic oil is changed, so that the air compressor needs small hydraulic oil, the hydraulic oil is emptied through the overflow valve, and the waste of energy is caused; (3) the pipeline connection is also mostly arranged in the outer casing of the air compressor, the hydraulic oil pipes are randomly distributed, the site is messy, and the difficulty of later maintenance is increased; (4) and the temperature protection is lacked, namely, the oil way cannot be cut off in time after the air compressor has high-temperature fault.
Disclosure of Invention
In order to solve the problems in the background art, the utility model provides a control system for a hydraulic drive air compressor.
A control system for a hydraulically driven air compressor comprises
The signal input module comprises a temperature control switch, an air pressure module, an oil pressure module and a circuit on-off module, and the temperature control switch, the air pressure module, the oil pressure module and the circuit on-off module are respectively connected with the control module;
the control module comprises a controller and a control circuit, and the controller controls and detects through the control circuit;
and the execution module comprises a main oil path switch, a pressure protection oil path switch, a temperature protection oil path switch, an air inlet valve plate and a safety valve module, and the controller is connected with the main oil path switch, the pressure protection oil path switch, the temperature protection oil path switch, the air inlet valve plate and the safety valve module through control circuit control according to the detection information of the temperature control switch, the air pressure module, the oil pressure module and the circuit on-off module.
Based on the above, including the alarm module, the alarm module includes warning light and maintenance warning module, and control circuit control connection warning light and maintenance warning module.
Based on the above, the main oil path switch is an electro-hydraulic directional valve, the pressure protection oil path switch is an electro-hydraulic stop valve, and the temperature protection oil path switch is a sequence valve.
Based on the above, the maintenance warning module is a maintenance prompt time timer.
Based on the above, the control circuit includes an interface terminal strip and a plurality of relays, and the plurality of relays are respectively connected with the power supply or the controller through the interface terminal strip.
Compared with the prior art, the utility model has substantive characteristics and progress, and particularly, the utility model monitors temperature, oil pressure, hydraulic pressure and the like through the mutual matching of the signal input module, the control module and the execution module, and correspondingly controls and outputs according to the detection result, and has the advantages of safe and convenient use, regular pipeline arrangement and low cost.
Drawings
FIG. 1 is a block diagram showing the structure of the present invention.
Fig. 2 is a schematic diagram of the control circuit structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 and 2, a control system for a hydraulic drive air compressor comprises a signal input module, a temperature control switch, an air pressure module, an oil pressure module and a circuit on-off module, wherein the temperature control switch, the air pressure module, the oil pressure module and the circuit on-off module are respectively connected with a control module; the control module comprises a controller and a control circuit, and the controller controls and detects through the control circuit; and the execution module comprises a main oil path switch, a pressure protection oil path switch, a temperature protection oil path switch, an air inlet valve plate and a safety valve module, and the controller is connected with the main oil path switch, the pressure protection oil path switch, the temperature protection oil path switch, the air inlet valve plate and the safety valve module through control circuit control according to the detection information of the temperature control switch, the air pressure module, the oil pressure module and the circuit on-off module.
The coil of relay SA1 connects the interface terminal row, and interface terminal row port 6 department is by controller control connection, and the controller carries out control connection through the triode in reality. When the air compressor hydraulic motor is normally used, after a user switches on the circuit on-off module, namely the circuit switch, the controller controls the M1 to switch on, the relay SA1 coil is electrified, the main oil circuit switch connected with the normally open contact of the relay SA1 is controlled to switch on the power supply, the main oil circuit switch is an electromagnetic valve, and the hydraulic motor of the air compressor is charged with hydraulic oil to work. The coil connection interface terminal row of relay SA4, interface terminal row port 3 department is by controller control connection, and the controller carries out control connection through the triode in reality, and relay SA 4's normally open contact control connection admission valve plate. And (4) comparing the pressure value of the air pressure module with a set value, adjusting the opening and closing of the valve plate of the air inlet valve, and controlling the air output. The coil of relay SA5 connects the interface terminal row, and interface terminal row port 2 department is by controller control connection, and the controller carries out control connection through the triode in reality, and relay SA 5's normally open contact control connection pressure protection oil circuit switch. And controlling the opening and closing of the pressure protection oil circuit switch according to the comparison between the input pressure value of the oil pressure module and a set value. Meanwhile, the internal temperature of the system is detected, the internal temperature is compared with a set value of the system, the temperature control switch K1 is closed under a normal condition, the relay coil KA is electrified, the relay SA2 coil is electrified, the temperature protection oil circuit switch connected with the contact of the relay SA2 is switched on, the power supply normally works, when the preset value is exceeded, the temperature control switch K1 is switched off, the relay KA coil and the relay SA2 coil are switched off, and the action state of the temperature protection oil circuit switch is controlled. The coil of relay SA3 connects the interface terminal row, and interface terminal row port 7 department is by controller control connection, and the controller carries out control connection through the triode in reality, and relay SA 3's normally open contact control connection relief valve module. And the X1 and the X2 are respectively connected with a controller and used for detecting the action change of the normally closed contacts of the temperature control switch K1 and the relay KA. When the user disconnects the circuit switch, the main oil circuit switch is closed, and the hydraulic oil does not drive the motor through the air compressor any more.
In the embodiment, the model of the temperature control switch is KSD301-100 ℃ normally closed, the model of the air pressure module is AIV-65C-YA, the model of the oil pressure module is PS3-10-25, and the model of the controller is STM32F 103. The main oil circuit switch is an electric hydraulic reversing valve, the pressure protection oil circuit switch is an electric hydraulic stop valve, and the temperature protection oil circuit switch is a sequence valve.
The bypass channel for communicating the main oil channel with the hydraulic oil tank is arranged in reality, the temperature protection oil channel switch is arranged on the bypass channel, when the temperature control switch in the signal input module detects that the internal temperature is abnormal (exceeds a system set value), the control module controls the temperature protection oil channel switch to act, hydraulic oil directly returns to the hydraulic oil tank through the bypass channel, and the air compressor is protected without passing through an internal driving motor of the air compressor. The opening and closing state of the main oil way is not changed, so that the working state of other parts of the drilling machine is not influenced, the misoperation of the drilling machine is not caused, and the safety and the reliability are realized; meanwhile, the control circuit controls the action of the alarm lamp, helps operators to quickly and clearly determine the problem, and stops the air compressor to process faults in time, so that the damage danger of the air compressor can be effectively reduced.
The air pressure module is used for detecting an air pressure value, when the air pressure module in the signal input module detects that the pressure is abnormally increased, and after the pressure exceeds a set value, the control circuit controls the valve plate of the air inlet valve to gradually reduce the opening degree until the valve plate is completely closed, so that the internal pressure is protected from being increased, and the safety of the whole air system is effectively protected. And the safety valve module inside the air compressor is combined, so that double insurance of pressure protection can be realized.
The oil pressure module is used for detecting the oil pressure value, when the oil pressure module in the signal input module detects that hydraulic oil pressure is too high, the valve degree of opening and closing is changed according to the size of pressure by pressure protection oil circuit switch, maintains the hydraulic pressure in the inside hydraulic motor of air compressor machine for stable value, and other positions that need pressure oil in the system are drawn to through the oil supply pipeline to unnecessary hydraulic oil, realize hydraulic oil pressure protection and energy-conserving dual purpose.
The maintenance warning module is a maintenance prompting time timer, the control system accumulates and records the running time, and the running time is directly displayed by using a timer screen, so that a time basis is provided for maintenance of maintenance personnel. When the circuit switch is closed, the coil of the relay KT is also electrified, and a timer which is controlled and connected by a normally open contact of the relay KT is switched on to start timing work, and the starting time is accumulated and recorded.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (5)
1. The utility model provides a control system for hydraulic drive air compressor which characterized in that: comprises that
The signal input module comprises a temperature control switch, an air pressure module, an oil pressure module and a circuit on-off module, and the temperature control switch, the air pressure module, the oil pressure module and the circuit on-off module are respectively connected with the control module;
the control module comprises a controller and a control circuit, and the controller controls and detects through the control circuit;
and the execution module comprises a main oil path switch, a pressure protection oil path switch, a temperature protection oil path switch, an air inlet valve plate and a safety valve module, and the controller is connected with the main oil path switch, the pressure protection oil path switch, the temperature protection oil path switch, the air inlet valve plate and the safety valve module through control circuit control according to the detection information of the temperature control switch, the air pressure module, the oil pressure module and the circuit on-off module.
2. The control system for a hydraulically driven air compressor according to claim 1, characterized in that: including alarm module, alarm module includes warning light and maintenance warning module, and control circuit control connection warning light and maintenance warning module.
3. The control system for a hydraulically driven air compressor according to claim 1, characterized in that: the main oil circuit switch is an electric hydraulic reversing valve, the pressure protection oil circuit switch is an electric hydraulic stop valve, and the temperature protection oil circuit switch is a sequence valve.
4. The control system for a hydraulically driven air compressor according to claim 2, characterized in that: the maintenance warning module is a maintenance prompting time timer.
5. The control system for a hydraulically driven air compressor according to claim 1, characterized in that: the control circuit comprises an interface terminal row and a plurality of relays, and the relays are connected with a power supply or a controller through the interface terminal row respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122587842.XU CN216518559U (en) | 2021-10-26 | 2021-10-26 | Control system for hydraulic drive air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122587842.XU CN216518559U (en) | 2021-10-26 | 2021-10-26 | Control system for hydraulic drive air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216518559U true CN216518559U (en) | 2022-05-13 |
Family
ID=81524117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122587842.XU Active CN216518559U (en) | 2021-10-26 | 2021-10-26 | Control system for hydraulic drive air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216518559U (en) |
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2021
- 2021-10-26 CN CN202122587842.XU patent/CN216518559U/en active Active
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