Novel combined camshaft

Abstract

The utility model provides a novel combined camshaft, and belongs to the technical field of automobile accessories. The cam shaft solves the problem that an existing cam shaft does not have the function of preventing the cam shaft from shifting, and consequently abrasion is aggravated. The novel combined camshaft comprises a camshaft body, the left end of the camshaft body is fixedly connected with a rear bearing, the right end of the camshaft body is fixedly connected with a vacuum pump, the right end of the vacuum pump is fixedly connected with an eccentric wheel, the right side of the eccentric wheel is fixedly connected with a front bearing, and a supporting journal is fixedly arranged on the surface of the camshaft body. An anti-deviation mechanism is arranged on the surface of the cam shaft body, a first cam set, a second cam set, a third cam set and a fourth cam set are sequentially and fixedly connected to the surface of the cam shaft body from left to right, the first cam set, the second cam set, the third cam set and the fourth cam set each comprise a first engine oil hole, and the anti-deviation mechanism comprises a positioning clamping groove. The positioning clamping groove is formed in the surface of the cam shaft body. The utility model has the advantages of long service life and the like.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology and relates to a novel combined camshaft. Background Technology

[0002] The camshaft is a component in a piston engine. Its function is to control the opening and closing of the valves. Therefore, the design of the camshaft requires high strength and support, and its material is generally high-quality alloy steel or alloy steel.

[0003] Existing camshafts do not have the function of preventing camshaft misalignment. If the camshaft is not operated according to the correct installation process and requirements, such as the camshaft not being fully installed in the bearing housing, or the tightening torque of the mounting bolts being uneven, the camshaft may misalign. This can easily lead to accelerated wear of components and a gradual increase in the clearance between components, resulting in an unsatisfactory service life. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel combined camshaft with good anti-deviation properties.

[0005] The objective of this utility model can be achieved through the following technical solution: A novel combined camshaft includes a camshaft body, a rear bearing fixedly connected to the left end of the camshaft body, a vacuum pump fixedly connected to the right end of the camshaft body, an eccentric wheel fixedly connected to the right end of the vacuum pump, a front bearing fixedly connected to the right side of the eccentric wheel, a support journal fixedly provided on the surface of the camshaft body, an anti-deviation mechanism provided on the surface of the camshaft body, and a first cam group, a second cam group, a third cam group, and a fourth cam group fixedly connected sequentially from left to right on the surface of the camshaft body. Each of the first, second, third, and fourth cam groups includes a first oil hole. The anti-deviation mechanism includes a positioning groove, which is formed on the surface of the camshaft body. In practical applications, the positioning groove facilitates the installation and positioning of the bearing plates, and also limits the camshaft body through the groove to prevent movement of the camshaft body.

[0006] This new type of combined camshaft increases the stability of the camshaft body through the cooperation of a limiting frame, a threaded mounting plate, a tile, and a positioning slot, preventing the camshaft body from shifting during rotation. In use, the limiting frame cooperates with the positioning slot to limit the camshaft body, preventing it from shifting due to external factors during rotation.

[0007] In the aforementioned novel combined camshaft, a limiting frame is movably fitted onto the surface of the camshaft body. Threaded mounting plates are fixedly installed on both the front and rear sides of the limiting frame. A tile is fixedly fitted into the inner cavity of the positioning groove. A limiting plate is movably installed on the top of the limiting frame. In practical applications, the tile protects the camshaft body, thereby preventing direct friction between the camshaft body and the limiting frame.

[0008] In the aforementioned novel combined camshaft, a second oil hole is provided on the left side of the camshaft body surface, and a threaded hole is provided on the right side of the front bearing. In practical applications, the threaded hole facilitates the installation of the pulley assembly onto the camshaft body, so that the pulley assembly drives the camshaft body to rotate.

[0009] In the aforementioned novel combined camshaft, the first, second, third, and fourth cam groups all include connecting flanges. An intake cam is fixedly mounted on the left side of the connecting flange, and an exhaust cam is fixedly mounted on the right side of the connecting flange. A first oil hole is located on the surface of the connecting flange. In practical applications, the first oil hole facilitates the flow of engine oil, thereby increasing the lubrication of the camshaft body surface.

[0010] In the aforementioned novel combined camshaft, the number of connecting flanges, exhaust cams, and intake cams is several, the number of first oil holes is several, and the number of limit clips, threaded mounting plates, bearings, and positioning slots is several. In practical applications, the connecting flanges can be connected to the exhaust cams and intake cams to increase the stability of the connection between the exhaust cams and intake cams, preventing misalignment between them.

[0011] Compared with the existing technology, the advantages of this new combined camshaft are: it can prevent the camshaft from shifting. If the camshaft is not operated according to the correct installation process and requirements, such as the camshaft not being fully installed in the bearing housing, or the tightening torque of the mounting bolts being uneven, the camshaft may shift. In this way, during use, the camshaft will be limited and prevented from shifting by multiple limit frames and limit plates. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram illustrating the anti-deviation mechanism of a partial structure of this utility model.

[0014] Figure 3 This utility model Figure 1 An enlarged diagram of A in the diagram.

[0015] Figure 4 This is a cross-sectional view of the rear bearing of a partial structure of this utility model.

[0016] Figure 5 This is a left-side view of the first cam group, a partial structure of this utility model.

[0017] Figure 6 This is a schematic diagram of the structure of this utility model from the left.

[0018] Figure 7 This is a left-side view of the third cam group, a partial structure of this utility model.

[0019] Figure 8 This is a cross-sectional view of the front bearing of a partial structure of this utility model.

[0020] Figure 9 This is a schematic diagram of the left sectional view of a partial structure of this utility model.

[0021] Figure 10 This is a schematic diagram of the left sectional view of the first cam group, a partial structure of this utility model.

[0022] Figure 11 This is a schematic diagram of the left sectional view of the second cam group in the partial structure of this utility model.

[0023] Figure 12 This is a schematic diagram of the unfolded first cam group of the partial structure of this utility model.

[0024] In the diagram, 1. Camshaft body; 2. First cam group; 3. Second cam group; 4. Third cam group; 5. Fourth cam group; 6. Eccentric wheel; 7. Vacuum pump; 8. Anti-deviation mechanism; 9. Support journal; 10. First oil hole; 11. Second oil hole; 12. Front bearing; 13. Rear bearing; 14. Limiting bracket; 15. Threaded mounting plate; 16. Bearing plate; 17. Threaded hole; 18. Positioning slot; 19. Connecting flange; 20. Exhaust cam; 21. Intake cam; 22. Limiting plate. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, this novel combined camshaft includes a camshaft body 1. A rear bearing 13 is fixedly connected to the left end of the camshaft body 1, a vacuum pump 7 is fixedly connected to the right end of the camshaft body 1, an eccentric wheel 6 is fixedly connected to the right end of the vacuum pump 7, and a front bearing 12 is fixedly connected to the right side of the eccentric wheel 6. A support journal 9 is fixedly provided on the surface of the camshaft body 1, and an anti-deviation mechanism 8 is provided on the surface of the camshaft body 1. From left to right, a first cam group 2, a second cam group 3, a third cam group 4, and a fourth cam group 5 are fixedly connected to the surface of the camshaft body 1. The first cam group 2, the second cam group 3, the third cam group 4, and the fourth cam group 5 all include a first oil hole 10. The anti-deviation mechanism 8 includes a positioning groove 18, which is formed on the surface of the camshaft body 1.

[0027] To elaborate further, a limiting frame 14 is movably fitted on the surface of the camshaft body 1. Threaded mounting plates 15 are fixedly installed on both the front and rear sides of the limiting frame 14. A tile 16 is fixedly fitted inside the cavity of the positioning groove 18. A limiting plate 22 is movably installed on the top of the limiting frame 14.

[0028] A second oil hole 11 is provided on the left side of the surface of the camshaft body 1, and a threaded hole 17 is provided on the right side of the front bearing 12. The first cam group 2, the second cam group 3, the third cam group 4 and the fourth cam group 5 all include a connecting flange 19. An intake cam 21 is fixedly installed on the left side of the connecting flange 19, and an exhaust cam 20 is fixedly installed on the right side of the connecting flange 19. The first oil hole 10 is provided on the surface of the connecting flange 19.

[0029] There are several connecting flanges 19, exhaust cams 20 and intake cams 21, several first oil holes 10, several limit frames 14, threaded mounting plates 15, tile plates 16 and positioning slots 18, and mounting screws that match the limit frames 14 and limit plates 22 are fixedly installed in the inner cavity of the engine.

[0030] In use, the user needs to place the camshaft body 1 onto the engine block using the rear bearing 13 and the front bearing 12. Before placement, the user uses the matching mounting screws to fix the threaded mounting plate 15 and the limiting frame 14 into the engine. After installing the limiting frame 14, the user aligns the camshaft body 1 with the limiting frame 14 so that the user can install the camshaft body 1 into the limiting frame 14. After the camshaft body 1 enters the limiting frame 14, the limiting frame 14 will cooperate with the positioning slot 18 to align the camshaft. The main body 1 is used for anti-deviation limiting. Then, the user installs the camshaft main body 1 and aligns the first cam group 2, the second cam group 3, the third cam group 4, and the fourth cam group 5 with the engine valves to ensure that the equipment can operate normally. When the camshaft main body 1 drives the first cam group 2, the second cam group 3, the third cam group 4, and the fourth cam group 5 to rotate, the engine oil will flow through the second oil hole 11 and the first oil hole 10 to increase the lubrication of the surface of the camshaft main body 1.

[0031] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A novel composite camshaft, comprising a camshaft body (1), characterized in that, The left end of the camshaft body (1) is fixedly connected to a rear bearing (13), the right end of the camshaft body (1) is fixedly connected to a vacuum pump (7), the right end of the vacuum pump (7) is fixedly connected to an eccentric wheel (6), the right side of the eccentric wheel (6) is fixedly connected to a front bearing (12), a support journal (9) is fixedly provided on the surface of the camshaft body (1), an anti-deviation mechanism (8) is provided on the surface of the camshaft body (1), and a first cam group (2), a second cam group (3), a third cam group (4) and a fourth cam group (5) are fixedly connected from left to right on the surface of the camshaft body (1). The first cam group (2), the second cam group (3), the third cam group (4) and the fourth cam group (5) all include a first oil hole (10). The anti-deviation mechanism (8) includes a positioning slot (18), which is opened on the surface of the camshaft body (1).

2. The novel combined camshaft according to claim 1, characterized in that, The surface of the camshaft body (1) is movably fitted with a limiting frame (14), and threaded mounting plates (15) are fixedly installed on both the front and rear sides of the limiting frame (14). The inner cavity of the positioning slot (18) is fixedly fitted with a tile (16), and a limiting plate (22) is movably installed on the top of the limiting frame (14).

3. A novel combined camshaft according to claim 2, characterized in that, The camshaft body (1) has a second oil hole (11) on the left side of its surface, and the front bearing (12) has a threaded hole (17) on the right side.

4. A novel combined camshaft according to claim 3, characterized in that, The first cam group (2), the second cam group (3), the third cam group (4) and the fourth cam group (5) all include a connecting flange (19). An intake cam (21) is fixedly installed on the left side of the connecting flange (19), and an exhaust cam (20) is fixedly installed on the right side of the connecting flange (19). The first oil hole (10) is opened on the surface of the connecting flange (19).

5. A novel combined camshaft according to claim 4, characterized in that, The number of connecting flanges (19), exhaust cams (20) and intake cams (21) is several, the number of first oil holes (10) is several, and the number of limit frames (14), threaded plates (15), tiles (16) and positioning slots (18) is several.

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