Stable control device for fuel injection pressure of fuel injector

Abstract

The utility model relates to the technical field of control equipment, in particular to a stable control device for the oil injection pressure of an oil injector, which comprises a transverse plate, the oil injector, a top plate, an adjusting screw and a locking nut, the oil injector and the top plate are movably arranged on the transverse plate, and the top plate is fixedly mounted at the top of the oil injector. The adjusting screw is in threaded connection with the top end of the oil sprayer, the locking nut is in threaded connection with the adjusting screw, a mounting frame is fixedly mounted above the transverse plate through a supporting rod, a mounting box is fixedly mounted on the mounting frame, symmetrical sleeves are arranged below the mounting box, symmetrical movable rods are arranged on the mounting box in a sliding mode, and the movable rods are fixedly mounted on the transverse plate. According to the oil injection pressure stability control device, the oil injection pressure of the oil injector can be rapidly and accurately adjusted, and compared with a manual adjustment mode, the time and labor are saved, the adjustment precision is high, the efficiency is high, and the practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of control equipment, and in particular relates to a fuel injection pressure stabilization control device for a fuel injector. Background Art

[0002] The fuel injector is an important component in the fuel supply system of a car engine. Its function is to spray the fuel into the engine cylinder in a mist form to achieve effective combustion of the fuel. Adjusting the injection pressure is mainly to optimize the engine's operating performance, which can better atomize the fuel, thereby improving combustion efficiency, ensuring the normal operation of the injector, and extending its service life.

[0003] When adjusting the pressure of the injector, it is usually necessary to manually use a screwdriver to turn the injection pressure adjustment screw on the top of the injector for adjustment. When the screw is screwed in, the opening pressure of the injector will increase, and vice versa. After adjustment, tighten the locking nut and repeat the calibration test until the specified nozzle opening pressure is reached. This process is time-consuming and labor-intensive, with poor adjustment accuracy and low efficiency. Improvements are needed. For this purpose, an injector injection pressure stabilization control device is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a fuel injector injection pressure stabilization control device which can quickly and accurately adjust the fuel injection pressure of the fuel injector.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an injector injection pressure stabilization control device, comprising a horizontal plate, an injector, a top plate, an adjusting screw and a locking nut, the injector and the top plate are movably arranged on the horizontal plate, the top plate is fixedly installed on the top of the injector, the adjusting screw is threadedly connected to the top of the injector, the locking nut is threadedly connected to the adjusting screw, an installation frame is fixedly installed above the horizontal plate through a support rod, an installation box is fixedly installed on the installation frame, a symmetrical sleeve is arranged below the installation box, a symmetrical movable rod is slidably arranged on the installation box, the movable rod is slidably arranged on the sleeve, a pressure plate is fixedly installed at the bottom of the movable rod, a lifting member for driving the pressure plate to vertically lift and lower is arranged on the installation box, and a driving member for driving the adjusting screw to rotate is arranged below the installation box.

[0006] Preferably, the driving member includes a connecting plate fixedly installed between the movable rods, a rotating motor fixedly installed in the middle of the connecting plate, a sleeve column fixedly installed at the end of the output shaft of the rotating motor, a cross-shaped rotating head slidably arranged on the sleeve column, and a spring fixedly installed in the sleeve column, wherein the spring is pressed between the sleeve column and the cross-shaped rotating head.

[0007] Preferably, the lifting component includes a lifting motor fixedly installed on both sides of the installation frame, and a bevel gear 1 and a bevel gear 2 that are rotatably arranged symmetrically inside the installation box. The ends of the output shaft of the lifting motor are respectively fixedly installed on the middle part of the bevel gear 1, the bevel gear 1 is meshed and transmission connected with the bevel gear 2, and the bevel gear 2 is respectively threadedly connected with the movable rod.

[0008] Preferably, a symmetrical opening is formed on the top plate, the pressing plate is fixedly mounted above the bottom end of the movable rod, the opening is directly opposite to the bottom end of the movable rod, and the size of the opening matches the size of the bottom end of the movable rod.

[0009] Preferably, the width of the transverse plate is matched with the length of the top plate, and the edge of the transverse plate is provided with scales.

[0010] Preferably, a controller is provided on the transverse plate, and the controller is electrically connected to the rotating motor and the lifting motor respectively.

[0011] To sum up, compared with the prior art, the beneficial effects of the utility model are as follows: by setting the cooperation between the horizontal plate, the injector, the top plate, the adjusting screw, the locking nut, the mounting frame, the mounting box, the sleeve, the movable rod, the pressure plate, the lifting member and the driving member, the pressure of the injector injection can be quickly and accurately adjusted. Compared with the manual adjustment method, it saves time and effort, has high adjustment accuracy, fast efficiency and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0013] Figure 2 This is a structural diagram of the fuel injector of the utility model;

[0014] Figure 3 This is a structural diagram of the horizontal plate and the installation frame of the utility model;

[0015] Figure 4 This is a bottom view of the installation frame of the utility model;

[0016] Figure 5 It is a side plan view of the installation frame and the installation box of the utility model;

[0017] Figure 6 It is a side cross-sectional structural diagram of the installation box of the utility model;

[0018] Figure 7 It is a side cross-sectional structural diagram of the sleeve column and the cross-shaped rotating head of the utility model.

[0019] Legend:

[0020] 1. Horizontal plate; 2. Injector; 3. Top plate; 4. Adjusting screw; 5. Locking nut; 6. Mounting frame; 7. Mounting box; 8. Bushing; 9. Movable rod; 10. Pressing plate; 11. Lifting member; 111. Lifting motor; 112. Bevel gear 1; 113. Bevel gear 2; 12. Driving member; 121. Connecting plate; 122. Rotating motor; 123. Bushing; 124. Cross-shaped swivel head; 125. Spring; 13. Opening. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-7 , the utility model provides a technical solution:

[0023] A fuel injection pressure stabilization control device for a fuel injector comprises a transverse plate 1, a fuel injector 2, a top plate 3, an adjusting screw 4 and a locking nut 5, wherein the fuel injector 2 and the top plate 3 are movably arranged on the transverse plate 1, the top plate 3 is fixedly installed on the top of the fuel injector 2, the adjusting screw 4 is threadedly connected to the top of the fuel injector 2, the locking nut 5 is threadedly connected to the adjusting screw 4, a mounting frame 6 is fixedly installed above the transverse plate 1 through a support rod, a mounting box 7 is fixedly installed on the mounting frame 6, a symmetrical sleeve 8 is arranged below the mounting box 7, a symmetrical movable rod 9 is slidably arranged on the mounting box 7, the movable rod 9 is slidably arranged on the sleeve 8, a pressing plate 10 is fixedly installed at the bottom of the movable rod 9, a lifting member 11 for driving the pressing plate 10 to vertically lift and lower is arranged on the mounting box 7, and a driving member 12 for driving the adjusting screw 4 to rotate is arranged below the mounting box 7 The driving member 12 includes a connecting plate 121 fixedly installed between the movable rods 9, a rotating motor 122 fixedly installed in the middle of the connecting plate 121, a sleeve column 123 fixedly installed at the end of the output shaft of the rotating motor 122, a cross-shaped rotating head 124 slidably arranged on the sleeve column 123, and a spring 125 fixedly installed in the sleeve column 123, the spring 125 is pressed between the sleeve column 123 and the cross-shaped rotating head 124, the lifting member 11 includes a lifting motor 111 fixedly installed on both sides of the mounting frame 6, and a bevel gear 112 and a bevel gear 2 113 symmetrically arranged in the mounting box 7, the end of the output shaft of the lifting motor 111 is respectively fixedly installed with the middle of the bevel gear 1 112, the bevel gear 1 112 is meshed and transmission-connected with the bevel gear 2 113, and the bevel gear 2 113 is respectively threadedly connected with the movable rod 9.

[0024] When adjusting the injection pressure of the injector 2, the operator first conducts a comprehensive inspection of the injector 2 to ensure its integrity and the normal operation of the links, springs 125, flanges and other components. The normal state of these components is the key to ensure that the injector 2 can work normally and reach the specified pressure;

[0025] Then the operator holds the fuel injector 2, passes the top plate 3 on the top of the fuel injector 2 through the horizontal plate 1, and places the top plate 3 horizontally on the horizontal plate 1, so that the pressure plate 10 faces the top surface of the top plate 3. Then the operator starts the lifting motor 111 on the side of the installation frame 6 at the same time, and the output shaft of the lifting motor 111 rotates to drive the bevel gear 1 112 to rotate in the installation box, and the rotation of the bevel gear 1 112 drives the bevel gear 2 113 connected with the meshing transmission to rotate. Since the bevel gear 2 113 is threadedly connected with the movable rod 9, the movable rod 9 is driven to vertically descend during the rotation of the bevel gear 2 113. The descent of the movable rod 9 drives the pressure plate 10 to vertically descend and press on the top surface of the top plate 3, so that the top plate 3 and the fuel injector 2 are fixed on the horizontal plate 1;

[0026] During the vertical descent of the movable rod 9, the connecting plate 121, the motor, the sleeve column 123 and the cross-shaped rotating head 124 are synchronously vertically descended. During the descent of the cross-shaped rotating head 124, the operator rotates the sleeve column 123 according to the cross-shaped opening position at the top of the adjusting screw 4, and the sleeve column 123 drives the cross-shaped rotating head 124 to rotate, and the cross-shaped rotating head 124 is directly opposite to the cross-shaped opening at the top of the screw. When the top plate 3 and the injector 2 are fixed, the cross-shaped rotating head 124 is inserted into the cross-shaped opening at the top of the screw;

[0027] The setting of the spring 125 enables the cross-shaped rotating head 124 to slide vertically on the sleeve 123 without affecting the fixing of the pressing plate 10 to the top plate 3;

[0028] After that, the operator starts the driving motor, and the driving motor rotates to drive the sleeve column 123, the cross-shaped rotating head 124 and the adjusting screw 4 to rotate at the same time, and fine-tune the height of the adjusting screw 4, so as to adjust the injection pressure of the injector 2. After adjustment, the locking nut 5 is tightened, and after tightening, the pressure gauge tank is connected to the injector 2, and the oil is delivered evenly and slowly. During the oil delivery process, the injector 2 starts to spray oil, and the highest pressure to which the pointer swings is observed, which is the injection pressure of the injector 2. If the pressure does not meet the standard, the locking nut 5 is loosened again and adjusted repeatedly. If the pressure meets the standard, the injector 2 can be removed from the horizontal plate 1.

[0029] The fuel injection pressure stabilization control device can quickly and accurately adjust the fuel injection pressure of the fuel injector 2. Compared with the manual adjustment method, it saves time and effort, has high adjustment accuracy, high efficiency, and strong practicality.

[0030] A symmetrical opening 13 is provided on the top plate 3, and the pressure plate 10 is fixedly installed above the bottom end of the movable rod 9. The opening 13 is opposite to the bottom end of the movable rod 9, and the size of the opening 13 is adapted to the size of the bottom end of the movable rod 9. During the vertical descent of the movable rod 9, the inner opening of the opening 13 of the top plate 3 is inserted, and the pressure plate 10 presses and fixes the top plate 3, which can improve the stability of the top plate 3 and the injector 2 after being fixed, thereby improving the stability during pressure adjustment, and has strong practicality.

[0031] The width of the horizontal plate 1 is matched with the length of the top plate 3, and a scale is provided on the edge of the horizontal plate 1; the placement positions of the top plate 3 and the injector 2 can be adjusted conveniently, so as to facilitate fixing the two.

[0032] A controller is provided on the horizontal plate 1 , and the controller is electrically connected to the rotating motor 122 and the lifting motor 111 respectively; the controller can automatically control the device components.

[0033] Working principle:

[0034] When adjusting the injection pressure of the injector 2, the operator first conducts a comprehensive inspection of the injector 2 to ensure its integrity and the normal operation of the links, springs 125, flanges and other components. The normal state of these components is the key to ensure that the injector 2 can work normally and reach the specified pressure;

[0035] Then the operator holds the fuel injector 2, passes the top plate 3 on the top of the fuel injector 2 through the horizontal plate 1, and places the top plate 3 horizontally on the horizontal plate 1, so that the pressure plate 10 faces the top surface of the top plate 3. Then the operator starts the lifting motor 111 on the side of the installation frame 6 at the same time, and the output shaft of the lifting motor 111 rotates to drive the bevel gear 1 112 to rotate in the installation box, and the rotation of the bevel gear 1 112 drives the bevel gear 2 113 connected with the meshing transmission to rotate. Since the bevel gear 2 113 is threadedly connected with the movable rod 9, the movable rod 9 is driven to vertically descend during the rotation of the bevel gear 2 113. The descent of the movable rod 9 drives the pressure plate 10 to vertically descend and press on the top surface of the top plate 3, so that the top plate 3 and the fuel injector 2 are fixed on the horizontal plate 1;

[0036] During the vertical descent of the movable rod 9, the connecting plate 121, the motor, the sleeve column 123 and the cross-shaped rotating head 124 are synchronously vertically descended. During the descent of the cross-shaped rotating head 124, the operator rotates the sleeve column 123 according to the cross-shaped opening position at the top of the adjusting screw 4, and the sleeve column 123 drives the cross-shaped rotating head 124 to rotate, and the cross-shaped rotating head 124 is directly opposite to the cross-shaped opening at the top of the screw. When the top plate 3 and the injector 2 are fixed, the cross-shaped rotating head 124 is inserted into the cross-shaped opening at the top of the screw;

[0037] The setting of the spring 125 enables the cross-shaped rotating head 124 to slide vertically on the sleeve 123 without affecting the fixing of the pressing plate 10 to the top plate 3;

[0038] After that, the operator starts the driving motor, and the driving motor rotates to drive the sleeve column 123, the cross-shaped rotating head 124 and the adjusting screw 4 to rotate at the same time, and fine-tune the height of the adjusting screw 4, so as to adjust the injection pressure of the injector 2. After adjustment, the locking nut 5 is tightened, and after tightening, the pressure gauge tank is connected to the injector 2, and the oil is delivered evenly and slowly. During the oil delivery process, the injector 2 starts to spray oil, and the highest pressure to which the pointer swings is observed, which is the injection pressure of the injector 2. If the pressure does not meet the standard, the locking nut 5 is loosened again and adjusted repeatedly. If the pressure meets the standard, the injector 2 can be removed from the horizontal plate 1.

[0039] The fuel injection pressure stabilization control device can quickly and accurately adjust the fuel injection pressure of the fuel injector 2. Compared with the manual adjustment method, it saves time and effort, has high adjustment accuracy, high efficiency, and strong practicality.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fuel injector injection pressure stabilization control device, comprising a transverse plate (1), a fuel injector (2), a top plate (3), an adjusting screw (4) and a locking nut (5), It is characterized in that The injector (2) and the top plate (3) are movably arranged on the transverse plate (1); the top plate (3) is fixedly installed on the top of the injector (2); the adjusting screw (4) is threadedly connected to the top of the injector (2); the locking nut (5) is threadedly connected to the adjusting screw (4); a mounting frame (6) is fixedly installed above the transverse plate (1) through a support rod; a mounting box (7) is fixedly installed on the mounting frame (6); a symmetrical sleeve (8) is arranged below the mounting box (7); a symmetrical movable rod (9) is slidably arranged on the mounting box (7); the movable rod (9) is slidably arranged on the sleeve (8); a pressure plate (10) is fixedly installed at the bottom of the movable rod (9); the mounting box ( 7) is provided with a lifting member (11) for driving the pressure plate (10) to vertically lift and lower, and a driving member (12) for driving the adjusting screw (4) to rotate is provided below the installation box (7); the driving member (12) comprises a connecting plate (121) fixedly installed between the movable rods (9), a rotating motor (122) fixedly installed in the middle of the connecting plate (121), a sleeve column (123) fixedly installed at the end of the output shaft of the rotating motor (122), a cross-shaped rotating head (124) slidably arranged on the sleeve column (123), and a spring (125) fixedly installed in the sleeve column (123), and the spring (125) is pressed between the sleeve column (123) and the cross-shaped rotating head (124).

2. A fuel injector injection pressure stabilization control device according to claim 1, It is characterized in that The lifting member (11) comprises a lifting motor (111) fixedly mounted on both sides of the mounting frame (6), and a bevel gear 1 (112) and a bevel gear 2 (113) rotatably mounted inside the mounting box (7) and symmetrically mounted therein. The ends of the output shaft of the lifting motor (111) are respectively fixedly mounted on the middle of the bevel gear 1 (112). The bevel gear 1 (112) is meshedly connected to the bevel gear 2 (113) for transmission. The bevel gear 2 (113) is respectively threadedly connected to the movable rod (9).

3. The fuel injection pressure stabilization control device of the fuel injector according to claim 1, It is characterized in that A symmetrical opening (13) is provided on the top plate (3), and the pressing plate (10) is fixedly mounted above the bottom end of the movable rod (9). The opening (13) is directly opposite to the bottom end of the movable rod (9), and the size of the opening (13) matches the size of the bottom end of the movable rod (9).

4. The fuel injection pressure stabilization control device of the fuel injector according to claim 1, It is characterized in that The width of the transverse plate (1) is matched to the length of the top plate (3), and scales are provided on the edge of the transverse plate (1).

5. The fuel injection pressure stabilization control device of the fuel injector according to claim 1, It is characterized in that The transverse plate (1) is provided with a controller, and the controller is electrically connected to the rotating motor (122) and the lifting motor (111) respectively.

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