Proportional direction valve control system

Abstract

Proportional direction valve control system The invention is a control system of proportional direction control valves used in mobile hydraulic systems, wherein it comprises a main body (1) housing the electro-hydraulic coils (5) and the motherboard (13), a magnetic position shaft (3) moving to the position of the position shaft in the valve with motion, electrohydraulic coils (5) enabling the valve shaft to be moved through energy, a hall effect card (7) allowing reading the position of the magnetic position shaft magnet (3), a protective cover gasket (10) providing sealing between the protective cover (11) and the hall effect card (7), a protective cover (11) protecting the hall effect card (7) from external factors, a motherboard (13) controlling the working principle of the proportional direction control valve control system, comprising all information and providing feedback, a rear cover (18) where the rear cover PCB card (22) and the connector (19) are located, a connector (19) containing the pins that send the necessary electrical information to the motherboard (13), a cover led bar (20) allowing the led lights on the rear cover PCB card (22) to be visible from outside, a rear cover connector gasket (21) protecting the rear cover (18) from external factors or possible leaks, a rear cover PCB card (22) filtering the electrical information coming from the connector (19) and providing communicating with the motherboard (13), a rear cover sealing gasket (23) providing sealing between the main body (1) and the rear cover (18).

Description

[0001] Proportional direction valve control system

[0002] Technical Field

[0003] The invention relates to a control system of proportional direction control valves used in mobile hydraulic systems.

[0004] Prior Art

[0005] Today, there are two types of driving in proportional direction control valves: Open and closed loop electrohydraulic proportional driving systems. These driving types vary the driving sensitivity and response of the proportional direction control valve and the outputs of the driving cards in the hydraulic project. For example, a designer can drive proportional direction control valves using driving methods such as 'Canbus' or 'PWM', or even drive them based on the project requirements with PWM current and voltage control drivings.

[0006] In present embodiments, open and closed electro-hydraulic proportional driving systems are assembled together under a single main body with separate motherboards for each. This diversity increases inventory costs and causes some challenges in field use. In companies designing fields or systems, the response time to project variety can be quite long. For example, one hydraulic project may require the use of a "Can" controlled proportional valve, while another project may require 0-10 volt driving or various configurations of the driving cards in the project. Also, the multitude of connecting cables can prevent ergonomic and practical use.

[0007] Summary of the application numbered 2022 / 008435, which occurred as a result of technical researches is such; “This invention relates the microprocessor PQ proportional hydraulic valve control circuit to be used in the machinery industry.”

[0008] As can be seen, the system relates to the microprocessor pq proportional hydraulic valve control circuit board and does not mention a structure that can provide a solution to the above- mentioned disadvantages. As a result, due to the negativities described above and the inadequacy of present solutions on the subject, it has become necessary to make a development in the relevant technical field.

[0009] Purpose of the Invention

[0010] The invention aims to present a structure with different technical features bringing a new perspective in this field, unlike the structures used in the present art.

[0011] The primary purpose of the invention is to enable the hydraulic system designer to offer more efficient and delicate and less costly solutions by easily using the different configuration transition feature.

[0012] Other purpose of the invention is to design a motherboard that includes all driving techniques to solve different stock problems. A configuration in which different driving techniques will be activated is formed by simply changing the cover on the back of the product. This enables all products in stock to become an actuator supporting all driving methods only by attaching a rear cover. It also supports the chain structure of the CAN cover used in the CAN driving technique. This leads to significant savings in cable costs and assembly labor.

[0013] In order to achieve the purpose described above, the invention is a proportional direction valve control system used in mobile hydraulic systems, and wherein; it comprises the following:

[0014] • a main body housing the electro-hydraulic coils and the motherboard,

[0015] • a position shaft moving to the position of the position shaft in the valve,

[0016] • electrohydraulic coils enabling the valve shaft to be moved with energy,

[0017] • a hall effect card allowing reading the position of the position shaft magnet,

[0018] • a protective cover gasket providing sealing and forming a magnetic field between the protective cover and the hall effect card,

[0019] • a protective cover protecting the hall effect card from external factors,

[0020] • a motherboard controlling the working principle of the proportional direction control valve control system, forming a control algorithm by measuring the input information from the rear cover PCB card and the instantaneous position information from the hall effect card and giving output to the electrohydraulic coils,

[0021] • a rear cover where the rear cover PCB card and the connector are located,

[0022] • a connector containing the pins that provide the necessary electrical connection to the motherboard, • a cover led bar allowing the led lights on the rear cover PCB card to be visible from outside,

[0023] • a rear cover connector gasket protecting the rear cover from external factors or possible leaks,

[0024] • a rear cover PCB card filtering the electrical information coming from the connector and providing communicating with the motherboard,

[0025] • a rear cover sealing gasket providing sealing between the main body and the rear cover.

[0026] The structural and characteristic features and all the advantages of the invention will be more clearly understood by means of the drawings given below and the detailed description written with references to these drawings, and therefore the evaluation needs to be made by taking these drawings and the detailed description into consideration.

[0027] Figures to Help Understanding of the Invention

[0028] Figure 1 is an exploded view of the system subject of the invention.

[0029] Figure 1.1 is a view of Detail A.

[0030] Figure 1.2 is a view of Detail A.

[0031] Figure 1.3 is a view of detail A.

[0032] Figure 2 is a perspective view of the system subject of the invention.

[0033] Figure 3 is a top view of the system subject of the invention.

[0034] Figure 4 is a front view of the system subject of the invention.

[0035] Figure 5 is a back view of the system subject of the invention.

[0036] Figure 6 is a top view of the system subject of the invention.

[0037] Drawings do not necessarily need to be scaled, and details that are not necessary for understanding the present invention may be omitted. Furthermore, elements that are at least substantially identical or have at least substantially identical functions are shown by the same number.

[0038] Description of the Part References

[0039] 1. Main body

[0040] 2. Centering bush

[0041] 3. Magnetic position shaft 4. Oring

[0042] 5. Electrohydraulic coils

[0043] 6. Coil bolt

[0044] 7. Hall effect card

[0045] 8. Micro switch spacer

[0046] 9. Protective cover bolt

[0047] 10. Protective cover gasket

[0048] 11 . Protective cover

[0049] 12. Phillips flat head screw

[0050] 13. Motherboard

[0051] 14. Motherboard bolt

[0052] 15. Chock bolt

[0053] 16. Bobbin

[0054] 17. Multi-strand copper cable

[0055] 18. Rear cover

[0056] 19. Connector

[0057] 20. Cover led bar

[0058] 21. Rear cover connector gasket

[0059] 22. Rear cover PCB card

[0060] 23. Rear cover sealing gasket

[0061] 24. Rear cover bolt

[0062] 25. Connector bolt

[0063] Detailed Description of the Invention

[0064] In this detailed description, preferred embodiments of the invention are described only for a better understanding of the subject and in a way that does not form any limiting effect.

[0065] The invention relates to the proportional direction valves control system used in mobile hydraulic systems.

[0066] The elements and their functions used in the system, which is the subject of the invention are as follows;

[0067] The main body (1 ) is the case in which the electrohydraulic coils (5) and the motherboard (13) are housed. The centering bush (2) is the part connecting the valve to which it will be connected and the chock in between.

[0068] The magnetic position shaft (3) ensures the movement to reach the position where the position shaft in the valve is located.

[0069] The O-ring (4) provides sealing at the centering bush (2).

[0070] The electro-hydraulic coils (5) provides the movement of the valve shaft through energy.

[0071] The coil bolt (6) provides the fixing of the electro-hydraulic coils (5) to the main body (1 ).

[0072] Hall effect card (7) enables the position of the magnetic position shaft (3) magnet to be read.

[0073] The micro switch spacer (8) ensures that the hall effect card (7) remains fixed on the main body (1 ).

[0074] The protective cover bolt (9) provides the fixing of the protective cover (11 ) of the hall effect card (7).

[0075] The protective cover gasket (10) provides sealing between the protective cover (1 1 ) and the hall effect card (7).

[0076] The protective cover (11 ) protects the hall effect card (7) from external factors.

[0077] The phillips flat head screw (12) fixes the protective cover (1 1 ) to the main body (1 ).

[0078] The motherboard (13) is the board that controls the working principle of the proportional direction control valve control system, forms a control algorithm by measuring the input information from the rear cover PCB card (22) and the instantaneous position information from the hall effect card (7) and giving output to the electrohydraulic coils (5).

[0079] The motherboard bolt (14) fixes the motherboard (13) to the main body (1 ). The chock bolt (15) ensures that the proportional direction control valve control system is fixed to the chock.

[0080] The bobbin (16) ensures that the motherboard (13) is immobilized in the main body (1 ).

[0081] The multistrand copper cable (17) connects the ends of the electrohydraulic coils (5) to the motherboard (13).

[0082] The rear cover (18) is the structure where the rear cover PCB board (22) and connector (19) are located.

[0083] The connector (19) is the housing where the pins send the necessary electrical information to the motherboard (13).

[0084] The cover LED bar (20) is the part that allows the LED lights on the rear cover PCB card (22) to be visible from the outside.

[0085] The rear cover connector gasket (21 ) is the part installed to protect the rear cover (18) from external factors or possible leaks.

[0086] The rear cover PCB card (22) is the card that filters the electrical information coming from the connector (19) and communicates with the motherboard (13).

[0087] The rear cover sealing gasket (23) provides sealing between the main body (1 ) and the rear cover (18).

[0088] The rear cover bolt (24) fixes the rear cover (18) to the main body (1 ).

[0089] The connector bolt (25) fixes the connector (19) to the rear cover (18).

[0090] The working principle of the system subject to the invention is as follows;

[0091] A basic control algorithm operates inside the motherboard (13) of the system subject to the invention. Input information and feedback information are required for this control. As a result of this, the electrohydraulic coil (5) outputs are controlled. The controlled electrohydraulic coils (5) serve to move the magnetic position shaft (3) (spool) of the valve. In order to receive feedback information, the magnetic field of the magnet on the magnetic position shaft (3) is measured by the hall effect sensors (7) on the invention. There are 5 different methods for the input information to be sent to the motherboard (13). The electrical pins used for each method are located on the card with an ide connector (19). There is an equivalent of this ide connector (19) on each rear cover PCB card (22), and each rear cover PCB card (22) provides a driving using the pins associated with itself. One of the greatest features of the invention is that it detects the cover by using one of these pins. In this way, driving technique can be adjusted both manually and automatically. The input information (19) given to the connector (19) is compared with the feedback information received via the magnetic position shaft (3), and the magnetic position shaft (3) is moved towards the desired position by means of the electrohydraulic coils (5).

[0092] The rear cover PCB card (22) configuration, which is the most important feature of the invention, the following different drivings are provided:

[0093] In analoq driving , control is provided by (0-5v / 0-1 Ov / Ratiometric) voltage.

[0094] In these driving techniques, half of the maximum voltage to be supplied refers to the middle position, when the voltage decreases to Ov, proportional driving is provided towards one direction, and as it moves towards the maximum voltage, driving is provided in the other direction. In these 3 methods, one adc pin is used.

[0095] In pwm driving , proportional driving is provided according to the duty cycle value of the signal sent. For this driving method, 2 pins or single pin can be used depending on need.

[0096] In the can driving technique, only 2 pins are needed for communication (canh - canl), also, since all actuators on the valve use the same communication line, the cover card in the can configuration connects the communication pins to both connectors in parallel. In this way, all slices are connected to each other with the chain cable, and communication with all slices is provided when only one actuator is connected. Instead of connecting separate cables to each slice, driving is performed on all slices with a single cable by this connection method. CONFIGURATION TABLE

Claims

CLAIMS1. A proportional direction valves control system used in mobile hydraulic systems, characterized by comprising;• a main body (1 ) housing the electro-hydraulic coils (5) and the motherboard (13),• a magnetic position shaft (3) moving to the position of the position shaft in the valve with motion,• electrohydraulic coils (5) enabling the valve shaft to be moved through energy,• a hall effect card (7) allowing reading the position of the magnetic position shaft magnet (3),• a protective cover (11 ) protecting the hall effect card (7) from external factors,• a motherboard (13) controlling the working principle of the proportional direction control valve control system, forming a control algorithm by measuring the input information from the rear cover PCB card (22) and the instantaneous position information from the hall effect card (7) and giving output to the electrohydraulic coils (5),• a rear cover (18) where the rear cover PCB card (22) and the connector (19) are located,• a connector (19) containing the pins that provide the necessary electrical information to the motherboard (13),• a cover led bar (20) allowing the led lights on the rear cover PCB card (22) to be visible from outside,• a rear cover connector gasket (21 ) protecting the rear cover (18) from external factors or possible leaks,• a rear cover PCB card (22) filtering the electrical information coming from the connector (19) and providing communicating with the motherboard (13),• a rear cover sealing gasket (23) providing sealing between the main body (1 ) and the rear cover (18).• a rear cover bolt (24) fixing the rear cover (18) to the main body (1 ).

2. The system according to claim 1 , characterized by comprising a centering bush (2) connecting the valve to which will be connected and the chock in between.

3. The system according to claim 1 , characterized by comprising oring (4) providing sealing in the centering bush (2).

4. The system according to claim 1 , characterized by comprising a coil bolt (6) enabling the electrohydraulic coils (5) to be fixed to the main body (1 ).

5. The system according to claim 1 , characterized by comprising a micro switch spacer (8) ensuring that the hall effect card (7) remains fixed on the main body (1).

6. The system according to claim 1 , characterized by comprising a protective cover bolt (9) providing the fixing of the protective cover (11) of the hall effect card (7).

7. The system according to claim 1 , characterized by comprising a phillips flat head screw (12) fixing the protective cover (11 ) to the main body (1 ).

8. The system according to claim 1 , characterized by comprising a motherboard bolt (14) fixing the motherboard (13) to the main body (1).

9. The system according to claim 1 , characterized by comprising a chock bolt (15) enabling the proportional direction control valve control system to be fixed to the chock.

10. The system according to claim 1 , characterized by comprising a bobbin (16) keeping the motherboard (13) in a way that it does not move, on the main body (1 ).

11. The system according to claim 1 , characterized by comprising a multi-strand copper cable (17) connecting the ends of the electrohydraulic coils (5) to the motherboard (13).

12. The system according to claim 1 , characterized by comprising a protective cover gasket (10) providing sealing and forming a magnetic field between the protective cover (11 ) and the hall effect card (7).

13. The system according to claim 1 , characterized by comprising a connector bolt (25) fixing the connector (19) to the rear cover (18).

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