Engine oil pump adjusting structure

Abstract

The utility model relates to the technical field of engines, in particular to an engine oil pump adjusting structure which comprises a cam shaft arranged in an engine box body, and two valve cams arranged on the engine box body and corresponding to one end of the cam shaft are respectively provided with tappets. An oil pump is arranged on the engine box body and corresponds to a pressure supply cam arranged at the other end of the cam shaft, and the pressure supply cam is matched with the pressure supply end of the oil pump; a shifting fork rod is arranged in the box body, one end of the shifting fork rod is connected with a connecting piece arranged on the oil pump adjusting component, the other end of the shifting fork rod is connected with a vertically-arranged driving rod, and the upper end of the driving rod penetrates out of the box body from a vertically-arranged mounting hole formed in the box body to form an operation end; the utility model has the characteristics that the structural design is simpler and more reasonable, the layout is more reasonable, the number of components can be reduced, and the working reliability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine, in particular to an engine oil pump adjusting structure. BACKGROUND

[0002] The engine cylinder body comprises a box body, the box body is provided with a box cover, the box body further forms a cylinder head, and the cylinder head is provided with a cylinder cover.

[0003] As Figures 1 to 3 The engine of the prior art is provided with a camshaft in the box body, the camshaft is provided with a cam corresponding to the intake valve tappet 1 and the exhaust valve tappet 2 respectively, and the camshaft drives the intake valve tappet and the exhaust valve tappet to move, and the oil pump 3 is arranged on the box body and located between the intake valve tappet and the exhaust valve tappet; the oil pump is matched with the cam on the camshaft and provides pressure for the oil pump. The oil pump is provided with an adjusting member 4, the adjusting member is provided with a connecting piece 5, and the oil pump is provided with an operating rod 6 below the box body, the inner end of the operating rod extends into the box body, and the inner end of the operating rod is connected with the connecting piece through a pull fork.

[0004] The above structure has the following defects: 1. The space between the intake valve tappet and the exhaust valve tappet affects the arrangement of the pull fork for adjusting the oil pump; 2. The position of the operating rod on the box body is not reasonable, which makes it inconvenient to operate; 3. The structure of the pull fork is complex, and multiple components are used to adjust the oil pump, which reduces the reliability.

[0005] Therefore, how to design an engine oil pump adjusting structure with a simple and reasonable structure, a more reasonable layout, a reduced number of components, and improved work reliability has become a technical problem to be solved by those skilled in the art. UTILITY MODEL CONTENTS

[0006] In view of the above defects of the prior art, the technical problem to be solved by the utility model is how to design an engine oil pump adjusting structure with a simple and reasonable structure, a more reasonable layout, a reduced number of components, and improved work reliability.

[0007] The utility model provides a kind of engine oil pump adjusting structure, including the camshaft being arranged in the engine box, two valve cams each being provided with tappet in the position corresponding to one end of camshaft on the engine box, pressure supply cam being provided with oil pump in the position corresponding to the other end of camshaft on the engine box, and pressure supply cam cooperates with oil pump pressure supply end;Its characterized in that;Fork lever is arranged in the box, one end of fork lever is connected with the connecting piece on the oil pump adjusting component, and the other end of fork lever is connected with the vertically arranged driving rod, and the driving rod upper end is from the vertically arranged mounting hole on the box and is formed operation end outside the box;Driving rod can rotate horizontally to drive fork lever to swing, so that connecting piece is stressed and drives adjusting component to rotate on oil pump to achieve the purpose of adjusting oil pump.

[0008] In this way, in the above structure, by changing the layout position of the tappet and the oil pump, the fork lever can be arranged in a larger space, and the structural layout is more reasonable. Moreover, by changing the arrangement direction of the fork lever, the position of the driving rod connected with the fork lever is designed more reasonably and is more convenient to operate. In addition, the driving design is simpler, and the oil pump is more stable and reliable when being adjusted.

[0009] As an optimization, the oil pump is arranged horizontally, and a vertical upward arranged supporting block is arranged on the adjusting component of the oil pump, and a horizontal inward arranged connecting piece is arranged on the inner side of the upper end of the supporting block. The fork lever includes a fork lever front section, a fork lever middle section and a fork lever rear section. The outer end of the fork lever front section is connected with the connecting piece, the inner end of the fork lever front section is connected with the fork lever middle section, and the inner end of the fork lever middle section is connected with the fork lever rear section. The driving rod is connected with the distal end of the fork lever rear section.

[0010] In this way, the structure of the fork lever is simpler and more reasonable, and the fork lever can be arranged better inside the box.

[0011] As an optimization, the fork lever front section has a butt joint, the butt joint has a vertical through hole arranged in a U-shaped structure, and the connecting piece includes a connecting column. The distal end of the connecting column is integrally formed with the butt joint, and the butt joint is arranged in the vertical through hole in a matching manner.

[0012] In this way, the design of the fork lever is more reasonable, and the fork lever can better cooperate with the connecting piece.

[0013] Further, the vertical thickness of the butt joint is greater than the vertical thickness of the fork lever front section, and the horizontal width of the butt joint is greater than the horizontal width of the fork lever front section.

[0014] Further, the fork lever front section, the fork lever middle section and the fork lever rear section are integrally formed.

[0015] Further, a horizontally arranged oil pump mounting hole is arranged at one side of the lower end of the box body, and an oil pump is mounted on the oil pump mounting hole. An installation protrusion is arranged on the inner side of the peripheral wall of the box body and at a position opposite to the oil pump mounting hole. An extension fitting hole is arranged on the installation protrusion, and the inner end of the oil pump extends into the extension fitting hole. The installation protrusion is integrally formed with the box body.

[0016] As an optimization, the rear section of the fork lever has a mounting head, which is vertically cylindrical in structure. A butt joint hole is arranged on the mounting head and used for connecting with the lower end of the driving rod.

[0017] In this way, the fork lever is more reasonable in design, and can be more conveniently connected with the driving rod and mounted in the box body.

[0018] As an optimization, a protruding column is arranged on the upper side surface of the box body and at a position opposite to the driving rod. A give way fitting hole is arranged on the protruding column, and the upper end of the driving rod extends out of the give way fitting hole to the outside. A horizontally arranged speed regulating pull rod piece is connected to the upper end of the driving rod.

[0019] In this way, the protruding column is arranged, and the give way fitting hole is arranged on the protruding column, so that the driving rod can be more conveniently mounted, and the fitting strength can be improved.

[0020] As an optimization, the engine further comprises a box cover arranged on the open end of the box body. The pair of valve cams are arranged on the cam shaft at a position away from the box cover. The pressure supply cam is arranged on the cam shaft at a position adjacent to the box cover. The fork lever is located at a position close to the box cover in the box body.

[0021] In this way, the overall arrangement in the box body is more reasonable, and maintenance is more convenient.

[0022] As an optimization, a mounting protrusion is arranged on the outer side surface of the box body and at a position opposite to the oil pump mounting hole. The oil pump comprises an outer end mounting flange plate, and the mounting flange plate is fixed on the mounting protrusion by screws.

[0023] In this way, the oil pump can be more conveniently mounted, and the mounting is more stable and reliable.

[0024] In summary, the engine oil pump adjusting structure has the characteristics of simpler and more reasonable structure design, more reasonable layout, reduced component quantity, and improved work reliability. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic view of the structure of an existing engine.

[0026] Figure 2 is Figure 1 is a schematic view of the structure after the box body is removed.

[0027] Figure 3 is Figure 2 a partial enlarged view of the A position in the figure.

[0028] Figure 4 is a structural schematic view of the engine in the embodiment of the present application.

[0029] Figure 5 is Figure 4 a structural schematic view after rotating an angle and removing the box.

[0030] Figure 6 is Figure 5 a partial enlarged view of the B position in the figure.

[0031] Figure 7 is Figure 5 a structural schematic view after rotating an angle and removing the box cover.

[0032] Figure 8 is Figure 7 a partial enlarged view of the C position in the figure.

[0033] Figure 9 is Figure 4 a structural schematic view of the pull fork rod in the figure. EMBODIMENTS

[0034] The present application will be further described below in conjunction with the drawings and embodiments, and it should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular way, and therefore cannot be understood as a limitation on the present application. The terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0035] As Figures 4 to 9As shown in the figure, an engine oil pump adjusting structure comprises a camshaft 11 arranged in an engine housing 10, two valve cams 12 each provided with a tappet 13 corresponding to the position of one end of the camshaft on the engine housing, a pressure supply cam 14 provided with an oil pump 15 corresponding to the position of the other end of the camshaft on the engine housing and matched with the pressure supply end of the oil pump, a yoke rod 16 arranged in the housing, a connecting piece 18 provided on an adjusting member 17 of the oil pump 15 and connected to one end of the yoke rod, and a vertically arranged driving rod 19 connected to the other end of the yoke rod, the upper end of the driving rod being arranged outside the housing through a vertically arranged mounting hole on the housing and forming an operating end.

[0036] Thus, in the above structure, the layout position of the tappet and the oil pump is changed, so that the yoke rod has a larger space for arrangement, and the structural layout is more reasonable. The arrangement direction of the yoke rod is changed, so that the position of the driving rod connected to the yoke rod is more reasonable and convenient to operate. In addition, the design of the driving rod is simpler, and the oil pump is more stable and reliable during adjustment.

[0037] In the embodiment, the oil pump is arranged horizontally, and a vertically upward arranged supporting block 20 is arranged on the adjusting member of the oil pump, and a horizontally inward arranged connecting piece is arranged on the inner side of the upper end of the supporting block. The yoke rod comprises a yoke rod front section 21, the outer end of the yoke rod front section is connected to the connecting piece, a yoke rod middle section 22 is arranged on the inner end of the yoke rod front section, a yoke rod rear section 23 is arranged on the inner end of the yoke rod middle section, and the driving rod is arranged on the distal end of the yoke rod rear section.

[0038] Thus, the yoke rod is designed more simply and reasonably, and can be arranged better inside the housing.

[0039] In the embodiment, the yoke rod front section has a butt joint 24, the butt joint has a vertically arranged U-shaped structure and a matching mouth 25, the connecting piece comprises a connecting column, the distal end of the connecting column is integrally formed with the butt joint, and the butt joint is matched in the matching mouth.

[0040] Thus, the yoke rod is designed more simply and reasonably, and can be arranged better inside the housing.

[0041] Further, the vertical thickness of the butt joint is larger than the vertical thickness of the yoke rod front section, and the horizontal width of the butt joint is larger than the horizontal width of the yoke rod front section.

[0042] Further, the yoke rod front section, the yoke rod middle section and the yoke rod rear section are integrally formed.

[0043] Further, a horizontally arranged oil pump mounting hole is arranged at one side of the lower end of the box body, and an oil pump is mounted in the oil pump mounting hole; an installation protrusion is arranged at the inner side of the peripheral wall of the box body and opposite to the oil pump mounting hole; an extension fitting hole is arranged on the installation protrusion, and the inner end of the oil pump extends into the extension fitting hole; and the installation protrusion is integrally formed with the box body.

[0044] In the embodiment, the rear section of the yoke rod has a mounting head 26, which is vertically cylindrical in structure, and has a butt joint hole arranged thereon and used for connecting with the lower end of the driving rod.

[0045] In this way, the yoke rod is more reasonable in design, and can be more conveniently connected with the driving rod and mounted in the box body.

[0046] In the embodiment, a protruding column 27 is arranged on the upper side surface of the box body and opposite to the driving rod, and has a give way fitting hole arranged thereon, and the upper end of the driving rod extends out of the give way fitting hole to the outside, and a horizontally arranged speed regulating pull rod piece 28 is connected to the upper end of the driving rod.

[0047] In this way, the protruding column is arranged, and the give way fitting hole is arranged on the protruding column, so that the driving rod can be more conveniently mounted, and the fitting strength can be improved.

[0048] In the embodiment, the engine further comprises a box cover 29 arranged at the open end of the box body, and the pair of valve cams are arranged on the cam shaft at a position away from the box cover; the pressure supply cam is arranged on the cam shaft at a position adjacent to the box cover; and the yoke rod is located at a position close to the box cover in the box body.

[0049] In this way, the overall arrangement in the box body is more reasonable, and the maintenance is more convenient.

[0050] In the embodiment, a mounting protrusion 30 is arranged on the outer side surface of the box body and opposite to the oil pump mounting hole, and the oil pump comprises an outer end mounting flange 31, which is fixed on the mounting protrusion by screws.

[0051] In this way, the oil pump can be more conveniently mounted, and the mounting is more stable and reliable.

[0052] In summary, the engine oil pump adjusting structure has the characteristics of simpler and more reasonable structure design, more reasonable layout, reduced component quantity, and improved work reliability.

[0053] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes without creative work according to the concept of the present application. Therefore, any technical solutions obtained by logical analysis, reasoning or limited experiments on the basis of the prior art according to the concept of the present application shall be within the protection scope defined by the claims.

Claims

1. An engine oil pump adjusting structure comprising a camshaft arranged to be installed in an engine block, two valve cams each provided with a tappet on the engine block in correspondence with an end position of the camshaft, and a pressure supply cam provided with an oil pump on the engine block in correspondence with the other end position of the camshaft, and the pressure supply cam being engaged with a pressure supply end of the oil pump; characterized in that: The box is provided with a yoke rod, one end of the yoke rod is connected with a connecting piece provided on the oil pump adjusting member, and the other end of the yoke rod is connected with a vertically arranged driving rod, the upper end of the driving rod is arranged outside the box through a vertically arranged mounting hole provided on the box and forms an operation end; the driving rod can be horizontally rotated to drive the yoke rod to swing, so that the connecting piece is stressed and drives the adjusting member to rotate on the oil pump to achieve the purpose of adjusting the oil pump.

2. An engine oil pump regulating structure according to claim 1, characterized in that; The oil pump is horizontally arranged, and a vertical upward arranged supporting block is arranged on the adjusting member of the oil pump, and a horizontal inward arranged connecting piece is arranged on the inner side of the upper end of the supporting block; the yoke rod comprises a yoke rod front section, the outer end of the yoke rod front section is connected with the connecting piece, a yoke rod middle section is connected at the inner end of the yoke rod front section, a yoke rod rear section is connected at the inner end of the yoke rod middle section, and the driving rod is connected at the distal end of the yoke rod rear section.

3. An engine oil pump regulating structure according to claim 2, characterized in that; The yoke rod front section is provided with a connector, the connector is provided with a vertical through hole and has a U-shaped structure, and the connecting piece comprises a connecting column, the distal end of the connecting column is integrally provided with the connector, and the connector is correspondingly arranged in the through hole.

4. An engine oil pump regulating structure according to claim 2, characterized in that; The yoke rod rear section is provided with a mounting head, the mounting head has a vertical cylindrical structure, and a connecting hole is arranged on the mounting head and used for connecting with the lower end of the driving rod.

5. An engine oil pump regulating structure as set forth in claim 1, characterized in that; A protruding column is arranged on the upper side surface of the box and opposite to the driving rod, a clearance hole is arranged on the protruding column, the upper end of the driving rod is arranged outside through the clearance hole, and a horizontally arranged speed regulating pull rod piece is connected at the upper end of the driving rod.

6. An engine oil pump regulating structure as set forth in claim 1, characterized in that; The engine further comprises a box cover arranged on the open end of the box, the pair of valve cams are arranged on the camshaft at a position away from the box cover, the pressure supply cam is arranged on the camshaft at a position adjacent to the box cover, and the yoke rod is arranged in the box at a position close to the box cover.

7. An engine oil pump regulating structure as set forth in claim 1, characterized in that; An installation protrusion is arranged on the outer side surface of the box and opposite to the oil pump mounting hole, the oil pump comprises an outer end mounting flange, and the mounting flange is fixed on the installation protrusion through screws.

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