Gasoline engine high-pressure oil pump pre-tightening tool

Abstract

The application provides a gasoline engine high-pressure oil pump pre-tightening tool, and belongs to the technical field of oil pump pre-tightening. The tool comprises a cylinder cover, a fixing frame arranged outside the cylinder cover, a clamping and fixing assembly arranged outside the cylinder cover and used for conveniently disassembling and assembling the fixing frame, an oil pump mounting seat mounted on the upper end of the cylinder cover and used for supporting and mounting a high-pressure oil pump, a pressing block arranged above the oil pump mounting seat, and a pressing operation assembly arranged above the pressing block and used for driving the pressing block to move up and down and press the high-pressure oil pump. The tool can be applied to the pressing work of other high-pressure oil pumps, the applicability of the tool is effectively ensured, the flange of the high-pressure oil pump is preliminarily attached to the oil pump mounting seat, the high-pressure oil pump is prevented from being pressed and deviated, the risk of damage of the high-pressure oil pump is prevented, the O-shaped ring of the high-pressure oil pump is prevented from being damaged, the effective installation of the high-pressure oil pump is facilitated, and the whole operation process is easy and labor-saving.

Description

Technical Field

[0001] This application belongs to the field of oil pump pre-compression technology, specifically relating to a pre-compression tooling for a high-pressure oil pump of a gasoline engine. Background Technology

[0002] High-pressure oil pump installation refers to the process of correctly placing and fixing the high-pressure oil pump on a specific piece of equipment (such as a car engine), and completing the relevant connections and debugging to enable it to work normally and stably, so as to meet the equipment's demand for high-pressure fuel or hydraulic power.

[0003] Traditional installation methods involve manual tightening or loose tightening. Without auxiliary tools, manual tightening is very difficult, labor-intensive, and prone to uneven tightening, which can damage the high-pressure oil pump. On the other hand, loose tightening can easily lead to misalignment and damage to the oil pump's O-ring.

[0004] To address the above problems, this application designs a pre-clamping fixture for a high-pressure fuel pump in a gasoline engine, which solves the technical difficulties of manual clamping operation being difficult and not labor-saving enough, and easily causing damage to the O-ring of the fuel pump. Utility Model Content

[0005] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, this application designs a pre-clamping fixture for a high-pressure fuel pump of a gasoline engine to ensure that manual clamping operation is labor-saving and to prevent damage to the O-ring of the fuel pump.

[0007] This application provides a pre-clamping fixture for a high-pressure fuel pump of a gasoline engine, comprising: a cylinder head; a fixing bracket disposed outside the cylinder head; a clamping and fixing assembly disposed outside the cylinder head for facilitating the disassembly and assembly of the fixing bracket; a fuel pump mounting base mounted on the upper end of the cylinder head for supporting and mounting the high-pressure fuel pump; a clamping block disposed above the fuel pump mounting base; and a clamping operation assembly disposed above the clamping block for driving the clamping block to move up and down and clamp the high-pressure fuel pump.

[0008] In some possible embodiments, the clamping and fixing assembly includes: a left V-shaped clamping plate disposed on the left side of the cylinder head; a right V-shaped clamping plate disposed on the right side of the cylinder head; a fixing plate fixed to the front end of the left V-shaped clamping plate; and an adjusting plate fixed to the front end of the right V-shaped clamping plate.

[0009] In some possible embodiments, the clamping and fixing assembly further includes: two telescopic rods, both connected between the fixed plate and the adjusting plate; a threaded locking rod, one end of which is rotatably connected to the right side of the fixed plate, and the other end of which rotatably passes through the adjusting plate; and a handle fixed to the other end of the threaded locking rod.

[0010] In some possible embodiments, the inner sides of both the left and right V-shaped clamps are connected with anti-slip pads.

[0011] In some possible embodiments, a guide rod is fixed to the left side of the left V-shaped clamp, the fixing frame is slidably sleeved with the guide rod, and a threaded adjusting rod is rotatably connected to the left side of the left V-shaped clamp, the threaded adjusting rod threaded through the fixing frame.

[0012] In some possible embodiments, the clamping operation assembly includes: a clamping rod fixed to the upper end of the clamping block; a concave frame fixed to the upper end of the fixed frame, wherein the clamping rod slides upward through the fixed frame and the concave frame in sequence; and a push rod fixed to the upper end of the clamping rod.

[0013] In some possible embodiments, the clamping operation assembly further includes: a linkage rod hinged to the upper end of the push rod; a pry bar hinged at its left end to the upper part of the linkage rod; and an inclined support plate fixed to the right side of the concave frame, with the lower left end of the pry bar hinged to the upper end of the inclined support plate.

[0014] In some possible embodiments, the clamping operation assembly further includes: a support plate fixed to the right side of the inclined support plate; a rotating block located to the right of the inclined support plate and hinged to the lower end of the pry bar; a telescopic shaft with one end hinged to the rotating block; a support block hinged to the upper end of the support plate, the other end of the telescopic shaft being fixed to the support block; and an operating rod fixed to the right side of the support block.

[0015] In some possible embodiments, the right end of the control lever is fixed with a handle, and the handle is covered with a rubber pad.

[0016] Compared with the prior art, the technical solution provided in this application has at least the following beneficial effects:

[0017] This application provides a pre-clamping fixture for a gasoline engine high-pressure fuel pump. By setting detachable left and right V-shaped clamps, the clamping fixture can be applied to the clamping work of other high-pressure fuel pumps, effectively ensuring the applicability of the clamping fixture. Furthermore, by setting a clamping operation component to control the downward movement of the clamping block, it is beneficial to ensure that the flange of the high-pressure fuel pump is pre-fitted with the fuel pump mounting seat, so as to prevent the high-pressure fuel pump from being pressed off-center, thus preventing the risk of damage to the high-pressure fuel pump and preventing damage to the O-ring of the high-pressure fuel pump. This facilitates the effective installation of the high-pressure fuel pump, and the entire operation process is easy and labor-saving.

[0018] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the overall structure of a gasoline engine high-pressure oil pump pre-clamping fixture according to some embodiments of this application;

[0021] Figure 2 This is a partially enlarged structural schematic diagram of a gasoline engine high-pressure fuel pump pre-clamping fixture according to some embodiments of this application;

[0022] Figure 3 This is a top view of the cylinder head structure of a gasoline engine high-pressure fuel pump pre-clamping fixture according to some embodiments of this application;

[0023] Figure 4 This is a schematic diagram of the overall working structure of a pre-clamping fixture for a high-pressure fuel pump of a gasoline engine according to some embodiments of this application.

[0024] Figure label:

[0025] 1. Cylinder head; 2. Fixing bracket; 3. Left V-shaped clamp; 4. Right V-shaped clamp; 5. Fixing plate; 6. Adjusting plate; 7. Telescopic rod; 8. Threaded locking rod; 9. Handle; 10. Oil pump mounting base; 11. Pressing block; 12. Pressing rod; 13. Concave bracket; 14. Push rod; 15. Linkage rod; 16. Pry rod; 17. Inclined support plate; 18. Support plate; 19. Rotating block; 20. Telescopic shaft; 21. Support block; 22. Operating rod; 23. Anti-slip pad; 24. Anti-slip pad; 25. Threaded adjusting rod; 26. Guide rod. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0028] The following reference Figures 1 to 4 This application describes a pre-clamping fixture for a high-pressure fuel pump of a gasoline engine, provided according to some embodiments.

[0029] Please see Figures 1 to 4This application provides a gasoline engine high-pressure fuel pump pre-clamping fixture in some embodiments, comprising: a cylinder head 1; a fixing bracket 2, located outside the cylinder head 1; a clamping and fixing assembly, located outside the cylinder head 1, for easy disassembly and assembly of the fixing bracket 2; a fuel pump mounting base 10, installed on the upper end of the cylinder head 1, for supporting and installing the high-pressure fuel pump; and a clamping block 11, located above the fuel pump mounting base 10. The clamping and fixing assembly includes: a left V-shaped clamping plate 3, located on the left side of the cylinder head 1; a right V-shaped clamping plate 4, located on the right side of the cylinder head 1; a fixing plate 5, fixed to the front end of the left V-shaped clamping plate 3; and an adjusting plate 6, fixed to the front end of the right V-shaped clamping plate 4. The clamping and fixing assembly also includes: two telescopic rods 7, both connected between the fixing plate 5 and the adjusting plate 6; a threaded locking rod 8, one end of which is rotatably connected to the right side of the fixing plate 5, and the other end of the threaded locking rod 8 rotatably passes through the adjusting plate 6; and a handle 9, fixed to the other end of the threaded locking rod 8.

[0030] In this embodiment, when the high-pressure oil pump is installed using the clamping fixture, with the left V-shaped clamp 3 and the right V-shaped clamp 4 positioned on either side of the cylinder head 1, the threaded locking rod 8 is tightened by holding the handle 9, causing the adjusting plate 6 to move closer to the fixed plate 5. This, in turn, causes the right V-shaped clamp 4 to move closer to the left V-shaped clamp 3. During this process, the telescopic rod 7 retracts until the left V-shaped clamp 3 and the right V-shaped clamp 4 are clamped and fixed around the cylinder head 1. This facilitates the installation of the clamping block 11 above the oil pump mounting base 10. When the clamping fixture needs to be disassembled, the threaded locking rod 8 is loosened, causing the adjusting plate 6 to move away from the fixed plate 5. Simultaneously, the adjusting plate 6 causes the right V-shaped clamp 3 to move away from the left V-shaped clamp 4 until the left V-shaped clamp 3 and the right V-shaped clamp 4 can be removed from the cylinder head 1. Therefore, the clamping fixture can be used for clamping other high-pressure oil pumps, effectively ensuring its applicability.

[0031] In some embodiments, the inner sides of the left V-shaped clamp 3 and the right V-shaped clamp 4 are both connected with anti-slip pads 23.

[0032] In this embodiment, after the left V-shaped clamp 3 and the right V-shaped clamp 4 clamp the cylinder head 1, the anti-slip pad 23 contacts the surface of the cylinder head 1, increasing the friction and helping to ensure the firmness of the cylinder head 1 after the left V-shaped clamp 3 and the right V-shaped clamp 4 clamp it.

[0033] In some embodiments, a guide rod 26 is fixed on the left side of the left V-shaped clamp 3, and the fixing frame 2 is slidably sleeved with the guide rod 26. A threaded adjusting rod 25 is rotatably connected to the left side of the left V-shaped clamp 3. The threaded adjusting rod 25 passes through the fixing frame 2 and is a pressing operation component located above the pressing block 11. It is used to drive the pressing block 11 to move up and down and press the high-pressure oil pump.

[0034] In this embodiment, when the high-pressure oil pump is placed on the oil pump mounting base 10, the flange of the high-pressure oil pump is pre-fitted to the oil pump mounting base 10. If the clamping block 11 deviates from the top of the high-pressure oil pump to be clamped, the threaded adjusting rod 25 is turned and the fixing frame 2 is moved left and right along the guide rod 26. The fixing frame 2 will move the clamping operation component and the clamping block 11 left and right together until the clamping block 11 is aligned with the top of the high-pressure oil pump to be clamped. Therefore, it is convenient to install the high-pressure oil pump by accurately pressing down the clamping block 11.

[0035] In some embodiments, the clamping operation assembly includes: a clamping rod 12, fixed to the upper end of the clamping block 11; a concave frame 13, fixed to the upper end of the fixing frame 2, wherein the clamping rod 12 slides upward through the fixing frame 2 and the concave frame 13 in sequence; and a push rod 14, fixed to the upper end of the clamping rod 12. The clamping operation assembly further includes: a linkage rod 15, hinged to the upper end of the push rod 14; a prying rod 16, with its left end hinged to the upper part of the linkage rod 15; an inclined support plate 17, fixed to the right side of the concave frame 13, with the lower left end of the prying rod 16 hinged to the upper end of the inclined support plate 17; the clamping operation assembly further includes: a support plate 18, fixed to the right side of the inclined support plate 17; a rotating block 19, located to the right of the inclined support plate 17 and hinged to the lower end of the prying rod 16; a telescopic shaft 20, with one end hinged to the rotating block 19; a support block 21, hinged to the upper end of the support plate 18, with the other end of the telescopic shaft 20 fixed to the support block 21; and an operating rod 22, fixed to the right side of the support block 21, with a handle 24 fixed to the right end of the operating rod 22, the handle 24 being covered with a rubber pad.

[0036] In this embodiment, when it is necessary to operate the clamping block 11 to press the high-pressure oil pump down onto the oil pump mounting base 10, the operator holds the handle 24 and presses down the operating lever 22. Since the handle 24 is wrapped with a rubber pad, it improves the comfort of operating the handle 24. Furthermore, when the operating lever 22 is pressed down, it causes the support block 21 to rotate counterclockwise around the support plate 18. Because the rotating block 19 is hinged to the prying rod 16, the support block 21 causes the telescopic shaft 20 to tilt upwards, and the telescopic shaft 20 extends. Then, the support block 21 lifts the prying rod 16. During this process, since the prying rod 16 is fulcrumd by the inclined support plate 17, the prying rod 16... Rotating counterclockwise with the inclined support plate 17 as the fulcrum, and with the linkage rod 15 rotating along the pry bar 16 and push bar 14, the pry bar 16 will cause the linkage rod 15, push bar 14 and clamping rod 12 to move downwards. Finally, the clamping rod 12 will drive the clamping block 11 to press down on the high-pressure oil pump, thereby making the flange of the high-pressure oil pump and the oil pump mounting seat 10 fit together in advance, so as to prevent the high-pressure oil pump from being pressed off-center, and to prevent damage to the O-ring of the high-pressure oil pump, and to help prevent the risk of damage to the high-pressure oil pump, thus achieving effective installation of the high-pressure oil pump. The entire clamping operation is carried out by pressing down the operating rod 22 and driving the clamping block 11 to clamp the high-pressure oil pump, which is easy and labor-saving to operate.

[0037] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pre-clamping fixture for a high-pressure fuel pump in a gasoline engine, characterized in that, include: Cylinder head (1); The mounting bracket (2) is located outside the cylinder head (1); The clamping and fixing assembly is located outside the cylinder head (1) to facilitate the installation and removal of the fixing bracket (2). Oil pump mounting bracket (10) is installed on the upper end of cylinder head (1) to support the installation of high pressure oil pump; A clamping block (11) is located above the oil pump mounting base (10); The clamping operation component is located above the clamping block (11) and is used to drive the clamping block (11) to move up and down and clamp the high-pressure oil pump; The clamping operation assembly includes: a clamping rod (12), fixed to the upper end of the clamping block (11); a concave frame (13), fixed to the upper end of the fixed frame (2), wherein the clamping rod (12) slides upward through the fixed frame (2) and the concave frame (13); and a push rod (14), fixed to the upper end of the clamping rod (12). The pressing operation assembly also includes: a linkage rod (15), hinged to the upper end of the push rod (14); a prying rod (16), the left end of which is hinged to the upper part of the linkage rod (15); and an inclined support plate (17), fixed to the right side of the concave frame (13), with the lower left end of the prying rod (16) hinged to the upper end of the inclined support plate (17). The clamping operation assembly further includes: a support plate (18) fixed to the right side of the inclined support plate (17); a rotating block (19) located to the right of the inclined support plate (17) and hinged to the lower end of the pry bar (16); a telescopic shaft (20) with one end hinged to the rotating block (19); a support block (21) hinged to the upper end of the support plate (18), and the other end of the telescopic shaft (20) fixed to the support block (21); and an operating rod (22) fixed to the right side of the support block (21).

2. The pre-clamping fixture for a high-pressure fuel pump of a gasoline engine according to claim 1, characterized in that, The clamping and fixing assembly includes: Left V-shaped clamp (3) is located on the left side of cylinder head (1); A right V-shaped clamp (4) is located on the right side of the cylinder head (1); Fixing plate (5) is fixed to the front end of left V-shaped clamp (3); Adjustment plate (6) is fixed to the front end of right V-shaped clamp (4).

3. The pre-clamping fixture for a high-pressure fuel pump of a gasoline engine according to claim 2, characterized in that, The clamping and fixing assembly further includes: Both telescopic rods (7) are connected between the fixed plate (5) and the adjusting plate (6); The threaded locking rod (8) is rotatably connected to the right side of the fixed plate (5) at one end, and the other end of the threaded locking rod (8) rotatably passes through the adjusting plate (6). The handle (9) is fixed to the other end of the threaded locking rod (8).

4. The pre-clamping fixture for a high-pressure fuel pump of a gasoline engine according to claim 2, characterized in that, The inner sides of the left V-shaped clamp (3) and the right V-shaped clamp (4) are both connected with anti-slip pads (23).

5. The pre-clamping fixture for a high-pressure fuel pump of a gasoline engine according to claim 2, characterized in that, A guide rod (26) is fixed on the left side of the left V-shaped clamp (3). The fixing frame (2) is slidably sleeved with the guide rod (26). A threaded adjusting rod (25) is rotatably connected on the left side of the left V-shaped clamp (3). The threaded adjusting rod (25) passes through the fixing frame (2).

6. The pre-clamping fixture for a high-pressure fuel pump of a gasoline engine according to claim 1, characterized in that, The right end of the operating lever (22) is fixed with a handle (24), and the handle (24) is covered with a rubber pad.

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