Novel engine cylinder head structure

Abstract

The utility model discloses a novel engine cylinder head structure which comprises a cylinder head body, a bolt mounting hole is integrally formed in the cylinder head body, and a cam shaft mounting seat is integrally arranged in the middle of the cylinder head body in an extending mode. The camshaft mounting seat and the cylinder head body are integrally arranged, so that the strength of the cylinder head body is improved, and different from the structure that the camshaft mounting seat and the cylinder head body are separately arranged in the prior art, the stability of the camshaft mounting seat can be enhanced; the problem that the camshaft mounting seat and the cylinder head body are easy to loosen due to precision deviation is avoided; the bolt mounting hole is integrally formed in the cylinder head body and is different from the structure that the bolt mounting hole is formed in the cam shaft mounting seat in the prior art, and the bolt mounting hole avoids the cam shaft mounting seat, so that the problem that the operation of an engine is influenced due to micro deformation of the cam shaft mounting seat caused by bolt fastening torque can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engine components, in particular to a novel engine cylinder head structure. Background Art

[0002] The engine cylinder head is a key component inside the engine. It is located at the top of the cylinder and is responsible for sealing the combustion chamber, installing the valves, supporting the camshaft, and ensuring that the high-temperature and high-pressure gas inside the cylinder is effectively controlled during the combustion process. Inside it, the camshaft mounting seat plays a vital role. It provides support for the rocker arm and converts the rotational motion of the camshaft into linear motion of the valve, thereby accurately controlling the intake and exhaust process and ensuring efficient operation of the engine.

[0003] like Figure 1 As shown, the existing camshaft mounting seat is usually an independent component installed inside the engine cylinder head, such as Figure 2 As shown, stud bolt mounting holes are provided at the four corners of the camshaft mounting seat for passing stud bolts to fix the two side housings of the engine cylinder head and the camshaft mounting seat together. Since the camshaft mounting seat and the housing of the engine cylinder head are spliced ​​together, high requirements are placed on the structural accuracy of the camshaft mounting seat during the production process. If there is a deviation, the camshaft mounting seat and the housing of the engine cylinder head are prone to loosening, thereby affecting the normal operation of the engine. At the same time, since the stud bolt mounting holes are provided on the camshaft mounting seat, this structure is prone to microscopic deformation of the camshaft mounting seat due to the tightening torque of the bolts, thereby affecting the normal operation of the engine. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the utility model provides a novel engine cylinder head structure.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A novel engine cylinder head structure comprises a cylinder head body, wherein a bolt mounting hole is integrally arranged in the cylinder head body, and a camshaft mounting seat is integrally extended and arranged in the middle of the cylinder head body.

[0007] Furthermore, a camshaft assembly is mounted on the camshaft mounting seat, and the camshaft assembly is connected to the camshaft mounting seat via a first mounting shaft.

[0008] Furthermore, an exhaust valve rocker arm and an intake valve rocker arm are mounted on the camshaft mounting seat, and both the exhaust valve rocker arm and the intake valve rocker arm are connected to the camshaft mounting seat via a second mounting shaft.

[0009] Furthermore, the bolt mounting holes are arranged at four corners of the cylinder head body close to the camshaft mounting seat, and some of the bolt mounting holes are raised to form a mounting height difference with other bolt mounting holes.

[0010] Furthermore, a camshaft limiting bolt and a plurality of rocker arm limiting bolts are also installed on the top of the camshaft mounting seat.

[0011] Furthermore, a plurality of heat dissipation ribs are arranged outside the cylinder head body.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model improves the strength of the cylinder head body by integrating the camshaft mounting seat with the cylinder head body. This is different from the structure of the prior art in which the camshaft mounting seat and the cylinder head body are separately arranged. The stability of the camshaft mounting seat can be enhanced, and the problem of easy loosening between the camshaft mounting seat and the cylinder head body due to precision deviation can be avoided, thereby further making the operation of the engine more stable and reducing the noise during the operation of the engine.

[0014] 2. The utility model arranges the bolt mounting holes in an integrated manner on the cylinder head body, which is different from the structure in the prior art in which the bolt mounting holes are arranged on the camshaft mounting seat, and the bolt mounting holes avoid the camshaft mounting seat, which can avoid the problem of microscopic deformation of the camshaft mounting seat caused by the bolt tightening torque, thereby affecting the operation of the engine.

[0015] In summary, the utility model solves the problem in the prior art that the camshaft mounting seat and the outer shell of the engine cylinder head are spliced ​​and connected, and if there is a deviation, the camshaft mounting seat and the outer shell of the engine cylinder head are easy to loosen. At the same time, it also solves the problem in the prior art that the bolt mounting holes are set on the camshaft mounting seat, which is easy to cause microscopic deformation of the camshaft mounting seat due to the tightening torque of the bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an engine cylinder head and a camshaft mounting seat in the prior art;

[0017] Figure 2 It is a structural schematic diagram of a camshaft mounting seat in the prior art;

[0018] Figure 3 This is a structural schematic diagram of a novel engine cylinder head structure of the utility model;

[0019] Figure 4 This is one of the structural schematic diagrams of the cylinder head body in the utility model;

[0020] Figure 5 This is the second structural schematic diagram of the cylinder head body in the utility model.

[0021] 1. Cylinder head body; 2. Bolt mounting hole; 3. Camshaft mounting seat; 4. Camshaft assembly; 5. First mounting shaft; 6. Exhaust valve rocker arm; 7. Intake valve rocker arm; 8. Second mounting shaft; 9. Camshaft limit bolt; 10. Rocker arm limit bolt; 11. Heat dissipation rib plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 2-5 As shown, a novel engine cylinder head structure comprises a cylinder head body 1, wherein a bolt mounting hole 2 is integrally provided in the cylinder head body 1, and a camshaft mounting seat 3 is integrally extended and provided in the middle of the cylinder head body 1.

[0024] In this embodiment, the camshaft mounting seat 3 is integrated with the cylinder head body 1 to improve the strength of the cylinder head body 1 and enhance the stability of the camshaft mounting seat 3. The bolt mounting hole 2 is integrated on the cylinder head body 1 to avoid the problem of micro deformation of the camshaft mounting seat 3 due to the tightening torque of the bolt, thereby affecting the operation of the engine.

[0025] Furthermore, a camshaft assembly 4 is mounted on the camshaft mounting seat 3 , and the camshaft assembly 4 is axially connected to the camshaft mounting seat 3 via a first mounting shaft 5 .

[0026] Furthermore, an exhaust valve rocker arm 6 and an intake valve rocker arm 7 are mounted on the camshaft mounting seat 3 , and both the exhaust valve rocker arm 6 and the intake valve rocker arm 7 are axially connected to the camshaft mounting seat 3 via a second mounting shaft 8 .

[0027] Furthermore, the bolt mounting holes 2 are arranged at four corners of the cylinder head body 1 close to the camshaft mounting seat 3 , and some of the bolt mounting holes 2 are elevated to form a mounting height difference with other bolt mounting holes 2 .

[0028] By setting the bolt mounting hole 2 at a position away from the camshaft mounting seat 3, the bolt mounting hole 2 can be further prevented from affecting the camshaft mounting seat 3; by heightening the bolt mounting holes 2 at different positions, the rigidity of the cylinder head body 1 can be improved, which helps to withstand the force generated when the engine is running, thereby reducing the deformation of the cylinder head.

[0029] Furthermore, a camshaft limiting bolt 9 and a plurality of rocker arm limiting bolts 10 are also installed on the top of the camshaft mounting seat 3 .

[0030] Furthermore, a plurality of heat dissipation ribs 11 are arranged outside the cylinder head body 1. By arranging the heat dissipation ribs 11, the structural strength of the cylinder head body 1 is enhanced and the heat dissipation area is increased.

[0031] The working process and principle of the utility model are as follows: the overall strength and stability are improved through integrated design, a bolt mounting hole 2 is arranged inside the cylinder head body 1, and a camshaft mounting seat 3 is extended in the middle. Such an integrated layout not only enhances the rigidity of the cylinder head, but also improves the stability of the camshaft mounting seat 3. The bolt mounting holes 2 are reasonably arranged to avoid the camshaft mounting seat 3, so as to avoid micro deformation of the camshaft mounting seat 3 due to the tightening torque of the bolts. Some of the bolt mounting holes 2 are raised to form an installation height difference, which helps to disperse the local stress concentration that may be caused by the tightening torque, reduce the adverse effects on the camshaft mounting seat 3, and ensure the smooth operation of the engine.

[0032] The above detailed description of the specific implementation of the utility model is only used as an example. The utility model is not limited to the specific implementation described above. The technicians in the industry should understand that the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel engine cylinder head structure, comprising a cylinder head body (1), characterized in that: A bolt mounting hole (2) is integrally provided in the cylinder head body (1), and a camshaft mounting seat (3) is integrally extended and provided in the middle of the cylinder head body (1).

2. A novel engine cylinder head structure according to claim 1, characterized in that: A camshaft assembly (4) is mounted on the camshaft mounting seat (3); the camshaft assembly (4) is axially connected to the camshaft mounting seat (3) via a first mounting shaft (5).

3. A novel engine cylinder head structure according to claim 1, characterized in that: An exhaust valve rocker arm (6) and an intake valve rocker arm (7) are mounted on the camshaft mounting seat (3); the exhaust valve rocker arm (6) and the intake valve rocker arm (7) are both axially connected to the camshaft mounting seat (3) via a second mounting shaft (8).

4. A novel engine cylinder head structure according to claim 1, characterized in that: The bolt mounting holes (2) are arranged at four corners of the cylinder head body (1) close to the camshaft mounting seat (3), and some of the bolt mounting holes (2) are raised to form a mounting height difference with other bolt mounting holes (2).

5. The novel engine cylinder head structure according to claim 1 is characterized in that: A camshaft limiting bolt (9) and a plurality of rocker arm limiting bolts (10) are also mounted on the top of the camshaft mounting seat (3).

6. A novel engine cylinder head structure according to claim 1, characterized in that: A plurality of heat dissipation ribs (11) are arranged outside the cylinder head body (1).

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