Diesel engine cylinder cover perforation gasket

Abstract

The utility model relates to a diesel engine cylinder cover perforation gasket, which relates to the technical field of cylinder gaskets, and comprises a first cushion block, a second cushion block, a pressing block and a fixing assembly, the fixing assembly is used for fixing the first cushion block, the second cushion block and the pressing block on a diesel engine body, the first cushion block is provided with a first inclined surface, and the second cushion block is provided with a second inclined surface. The first cushion block is provided with a first inclined face, the second cushion block is provided with a second inclined face, the pressing block is provided with a pressing groove, the inner wall of the pressing groove is obliquely arranged, the first cushion block and the second cushion block can be inserted into the pressing groove, and the first inclined face and the second inclined face can abut against the inner wall of the pressing groove. The effect of improving the press-fit fixing stability of the air cylinder cover is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder gaskets, in particular to a diesel engine cylinder head riding gasket. Background Art

[0002] A diesel engine is an engine that burns diesel to release energy. Each working cycle also goes through four strokes: intake, compression, power generation, and exhaust. It is also called a diesel engine. The advantages of a diesel engine are high torque and good economic performance, and it is widely used in many fields.

[0003] The diesel engine is provided with a cylinder power group consisting of multiple cylinders. There is a certain gap between the cylinder heads of each cylinder and they all need to be pressed against the body of the diesel engine. Therefore, in the prior art, flat gaskets or flanges are often used on the surfaces of adjacent cylinder heads to cooperate with bolts and nuts set on the diesel engine body to press the cylinder heads against the diesel engine.

[0004] However, in actual use, due to the cumulative tolerance of parts, there is often a certain difference in the surface height of two adjacent cylinder heads. Therefore, the flat gasket and the flange cannot completely fit with the surfaces of the two cylinder heads, making the pressing of the cylinder heads not stable enough. Utility Model Content

[0005] In order to improve the stability of the cylinder head press-fit fixation, the present application provides a diesel engine cylinder head saddle gasket.

[0006] The present application provides a diesel engine cylinder head saddle gasket adopting the following technical solution:

[0007] A diesel engine cylinder head saddle gasket comprises a first pad, a second pad, a pressing block and a fixing assembly, wherein the fixing assembly is used to fix the first pad, the second pad and the pressing block on the body of the diesel engine, the first pad is provided with a first inclined surface, the second pad is provided with a second inclined surface, the pressing block is provided with a pressing groove, the inner wall of the pressing groove is inclined, the second pad and the second pad can be inserted into the pressing groove, and the first inclined surface and the second inclined surface can both abut against the inner wall of the pressing groove.

[0008] By adopting the above technical solution, the angle between the first inclined surface and the bottom wall of the first cushion block is between 15 and 45 degrees, the angle between the second inclined surface and the bottom wall of the second cushion block is between 15 and 45 degrees, the first cushion block and the second cushion block are wedge-shaped blocks, the first cushion block and the second cushion block are pressed on the top walls of two adjacent air pressure covers respectively, and the pressing block is pressed on the first cushion block and the second cushion block, so that the first cushion block and the second cushion block are both inserted into the wedge-shaped pressing groove, and the first inclined surface on the first cushion block is fitted against the pressing groove. The inner wall on one side of the pressing groove is made so that the second inclined surface on the second pad is fitted against the inner wall on the other side of the pressing groove; the first pad, the second pad and the pressing block are fixed to the body of the diesel engine by means of a fixing assembly; the cylinder head at both ends of the riding seam are respectively pressed tightly by means of the first pad and the second pad; even if there is a height difference on the top wall of the cylinder head, the first inclined surface or the second inclined surface can be always pressed against the inner wall of the pressing groove by adjusting the first pad or the second pad, thereby fully pressing the cylinder head and improving the stability of the cylinder head pressing and fixing.

[0009] Preferably, friction plates are provided at the bottom of the first cushion block and the second cushion block.

[0010] By adopting the above technical solution, the friction force at the bottom of the first pad and the second pad is increased by the friction plate, so that the first pad and the second pad are more stable when pressed on the top wall of the cylinder head, the possibility of random movement of the first pad and the second pad is reduced, and the stability of the cylinder head pressing and fixing is further improved.

[0011] Preferably, the fixing assembly includes a fixing stud and a fixing nut, the fixing stud is arranged on the body of the diesel engine, the first pad is provided with a first fixing groove communicating with the first inclined surface, the second pad is provided with a second fixing groove communicating with the second inclined surface, the fixing stud is inserted into the first fixing groove and the second fixing groove, the pressure block is provided with a third fixing groove communicating with the pressing groove, the fixing stud passes through the third fixing groove, the fixing nut is sleeved on the fixing stud and can be abutted against the top wall of the pressure block, and the fixing nut is threadedly connected to the fixing stud.

[0012] By adopting the above technical scheme, the bottom of the fixing stud is connected to the body of the diesel engine. During installation, the first gasket is placed on a cylinder head top wall and the fixing stud is inserted into the first fixing groove on the first gasket, the second gasket is placed on the adjacent cylinder head top wall and the fixing stud is inserted into the second fixing groove on the second gasket, the pressure block is covered so that the fixing stud passes through the third fixing groove on the pressure block, the first gasket and the second gasket are inserted into the pressing groove on the pressure block, and the first inclined surface on the first gasket is fitted against the inner wall on one side of the pressing groove, and the second inclined surface on the second gasket is fitted against the inner wall on the other side of the pressing groove, and then the fixing nut is put on the fixing stud and tightened until the bottom wall of the fixing nut is fitted against the top wall of the pressure block to complete the pressing fixation, the operation is simple and convenient, and the fixation is stable and reliable. At the same time, the fixing stud is inserted into the first fixing groove and the second fixing groove, thereby limiting the lateral movement of the first gasket and the second gasket, and further improving the stability of the overall pressing fixation.

[0013] Preferably, the fixing assembly further comprises a fixing gasket, which is sleeved on the fixing stud and arranged between the top wall of the pressing block and the bottom wall of the fixing nut.

[0014] By adopting the above technical solution, the fixing gasket is arranged between the top wall of the pressing block and the bottom wall of the fixing nut, thereby increasing the pressing block area of ​​the fixing nut and improving the fixing stability.

[0015] Preferably, the side wall of the pressing block is provided with an auxiliary hole communicating with the third fixing groove and the pressing groove.

[0016] By adopting the above technical solution, the auxiliary hole is used to observe the position between the first fixing groove of the first cushion block and the second fixing groove of the second cushion block and the fixing stud, so that when an abnormality occurs, it can be discovered and handled in time.

[0017] Preferably, connecting rods are provided between adjacent pressing blocks.

[0018] By adopting the above technical solution, the connecting rod connects the adjacent pressing blocks, and the two adjacent sets of saddle gaskets are combined into a whole through the connecting rod, thereby improving the stability of the overall pressing and fixing. At the same time, the pressing blocks can be covered or removed synchronously through the connecting rod, which improves the convenience of operation.

[0019] Preferably, the pressing block is provided with a reinforcing block, and the reinforcing block is connected to the connecting rod.

[0020] By adopting the above technical solution, the strength of the connection between the block lifting press block and the connecting rod is strengthened, the possibility of damage and fracture of the connection between the press block and the connecting rod when the press block is moved through the connecting rod is reduced, and the overall durability is improved.

[0021] Preferably, the connecting rod is provided with an abutment block, and the abutment block can abut against the first cushion block and the second cushion block.

[0022] By adopting the above technical solution, the abutment block abuts against the first cushion block and the second cushion block, thereby further limiting the possibility of lateral movement of the first cushion block and the second cushion block, and improving the stability of the overall pressing and fixing.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By arranging a first pad, a second pad, a pressing block, a fixing assembly, a first inclined surface, a second inclined surface and a pressing groove, the first pad and the second pad are placed on two adjacent cylinder heads, and the pressing block is pressed on the first pad and the second pad, so that the first pad and the second pad are inserted into the pressing groove, and the first inclined surface and the second inclined surface are pressed against the inner wall of the pressing groove, and the pressing block and the first pad and the second pad are fixed to the body of the diesel engine by the fixing assembly, and the positions of the first pad and the second pad are adjusted so that the first inclined surface and the second inclined surface are always pressed against the inner wall of the pressing groove, so that even if there is a certain height difference between the top walls of the two cylinder heads, the cylinder heads can always be pressed, thereby improving the stability of the pressing and fixing of the cylinder heads;

[0025] 2. By setting a fixing stud, a fixing nut, a first fixing groove, a second fixing groove and a third fixing groove, the fixing stud is set on the diesel engine body, the fixing stud is inserted into the first fixing groove and the second fixing groove, the first cushion block and the second cushion block are limited to a certain extent, and at the same time, the fixing stud passes through the third fixing groove on the pressing block, and the fixing stud is locked by the fixing nut and pressed against the pressing block, so as to complete the pressing, and the operation is simple and convenient;

[0026] 3. By setting a connecting rod, a reinforcing block and an abutment block, the connecting rod connects two adjacent pressing blocks to improve the overall stability, the connecting rod improves the strength and durability, and the abutment block abuts against the side walls of the first pad block and the second pad block, thereby further improving the stability of the pressing of the first pad block and the second pad block in the lateral direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall schematic diagram of a diesel engine cylinder head saddle gasket provided in an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view used to reflect the connection relationship between the pressing block, the first cushion block and the second cushion block.

[0029] Explanation of the accompanying drawings: 1. First cushion block; 11. First inclined surface; 12. First fixing groove; 2. Second cushion block; 21. Second inclined surface; 22. Second fixing groove; 23. Friction plate; 3. Pressing block; 31. Pressing groove; 32. Third fixing groove; 33. Auxiliary hole; 4. Fixing assembly; 41. Fixing stud; 42. Fixing nut; 43. Fixing gasket; 5. Connecting rod; 51. Reinforcing block; 52. Abutment block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-2 This application is described in further detail.

[0031] The present application embodiment discloses a diesel engine cylinder head saddle gasket. Figure 1 to Figure 2 , which comprises a fixing assembly 4, a pair of first pads 1, a pair of second pads 2 and a pair of pressing blocks 3. The fixing assembly 4 is used to fix the first pad 1, the second pad 2 and the pressing block 3 on the body of the diesel engine. The first pad 1 and the second pad 2 are made of alloy steel with a hardness between 30 and 55HRC. The bottom walls of the first pad 1 and the second pad 2 are arranged on the friction plate 23. The pressing block 3 is made of high-hardness alloy steel with a hardness of more than 50HRC. The top wall of the first pad 1 is provided with a first inclined surface 11, and the angle between the first inclined surface 11 and the bottom wall of the first pad 1 is 20°. The top wall of the second pad 2 is provided with a second inclined surface 21, and the angle between the second inclined surface 21 and the bottom wall of the second pad 2 is 20°. The pressing block 3 is cylindrical and the bottom wall is provided with a pressing groove 31, which passes through the side wall of the pressing block 3. The side wall of the pressing groove 31 is inclined, and the side wall of the pressing block 3 is provided with an auxiliary hole 33 communicating with the pressing groove 31. The first pad 1 and the second pad 2 can be adapted to be inserted into the pressing groove 31, and the first inclined surface 11 and the second inclined surface 21 can be adapted to be against the inner wall of the pressing groove 31. The first pad 1 and the second pad 2 are pressed onto two adjacent cylinder heads by the pressing block 3, so that the first pad 1 and the second pad 2 are inserted into the pressing groove 31, and the first inclined surface 11 and the second inclined surface 21 are pressed against the inner walls on both sides of the pressing groove 31. The pressing block 3 and the first pad 1 and the second pad 2 are fixed to the body of the diesel engine by the fixing assembly 4. Even if there is a certain height difference between the top walls of the two adjacent cylinder heads, by adjusting the positions of the first pad 1 and the second pad 2, the first inclined surface 11 and the second inclined surface 21 are always pressed against the inner wall of the pressing groove 31, and the cylinder head is always pressed, thereby improving the stability of the cylinder head pressing fixation.

[0032] To improve overall stability, refer to Figure 1 and Figure 2The fixing assembly 4 includes a fixing stud 41, a fixing nut 42 and a fixing gasket 43. The bottom of the fixing stud 41 is fixedly connected to the body of the diesel engine. The side wall of the first cushion block 1 is provided with a semicircular first fixing groove 12 communicating with the first inclined surface 11, and the side wall of the second cushion block 2 is provided with a semicircular second fixing groove 22 communicating with the second inclined surface 21. The fixing stud 41 is adapted to be inserted into the first fixing groove 12 and the second fixing groove 22. The top wall of the pressing block 3 is penetrated with a third fixing groove 32 communicating with the pressing groove 31, and the fixing stud 41 is adapted to pass through the third fixing groove 32. The fixing nut 42 is sleeved on the fixing stud 41 and is threadedly connected to the fixing stud 41. The fixing gasket 43 is sleeved on the fixing stud 41 and is arranged between the fixing nut 42 and the pressing block. The two sides of the fixing gasket 43 are respectively pressed against the bottom wall of the fixing nut 42 and the top wall of the pressing block. The cylinder head is pressed together by fixing nut 42 against fixing gasket 43, fixing gasket 43 against pressing block 3, pressing block 3 against first gasket 1 and second gasket 2, and second gasket 2 and first gasket 1 against the cylinder head, thereby improving the overall stability.

[0033] To improve the convenience of operation, refer to Figure 1 A connecting rod 5 is integrally fixed between the two pressing blocks 3, and the top wall of the connecting rod 5 is flush with the top wall of the pressing block 3. The pressing block 3 is integrally provided with a reinforcing block 51 integrally connected to the connecting rod 5. An abutting block 52 abutting against the first cushion block 1 and the second cushion block 2 is fixedly provided on the bottom wall of the connecting rod 5. The two pressing blocks 3 can be synchronously operated to be pressed or disassembled through the connecting rod 5, and the stability of the overall pressing and fixing is improved by connecting the two pressing blocks 3.

[0034] The implementation principle of a diesel engine cylinder head saddle gasket in an embodiment of the present application is as follows: the bottoms of the wedge-shaped first gasket 1 and the second gasket 2 are respectively pressed on a cylinder head, and at the same time, the first gasket 1 and the second gasket 2 are inserted into the wedge-shaped pressing groove 31 on the pressing block 3. Even if there is a difference in height between the two cylinder heads, by adjusting the position of the first gasket 1 or the second gasket 2, so that the first inclined surface 11 and the second inclined surface 21 are pressed against the inner wall of the pressing groove 31, the pressing pressure can be continuously transmitted to the cylinder head. By pressing the adjacent cylinder heads with the saddle gasket in the present application, the stability of the cylinder head pressing and fixing is improved.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A diesel engine cylinder head saddle gasket, characterized in that: The invention comprises a first cushion block (1), a second cushion block (2), a pressing block (3) and a fixing assembly (4); the fixing assembly (4) is used to fix the first cushion block (1), the second cushion block (2) and the pressing block (3) on the body of a diesel engine; the first cushion block (1) is provided with a first inclined surface (11); the second cushion block (2) is provided with a second inclined surface (21); the pressing block (3) is provided with a pressing groove (31); the inner wall of the pressing groove (31) is inclined; the second cushion block (2) and the second cushion block (2) can both be inserted into the pressing groove (31); and the first inclined surface (11) and the second inclined surface (21) can both abut against the inner wall of the pressing groove (31).

2. A diesel engine cylinder head saddle gasket according to claim 1, characterized in that: The bottom of each of the first cushion block (1) and the second cushion block (2) is provided with a friction plate (23).

3. The diesel engine cylinder head saddle gasket according to claim 1, characterized in that: The fixing assembly (4) comprises a fixing stud (41) and a fixing nut (42), wherein the fixing stud (41) is arranged on the body of the diesel engine, the first cushion block (1) is provided with a first fixing groove (12) communicating with the first inclined surface (11), the second cushion block (2) is provided with a second fixing groove (22) communicating with the second inclined surface (21), the fixing stud (41) is inserted into the first fixing groove (12) and the second fixing groove (22), the pressing block (3) is provided with a third fixing groove (32) communicating with the pressing groove (31), the fixing stud (41) passes through the third fixing groove (32), the fixing nut (42) is sleeved on the fixing stud (41) and can be abutted against the top wall of the pressing block (3), and the fixing nut (42) is threadedly connected to the fixing stud (41).

4. A diesel engine cylinder head saddle gasket according to claim 3, characterized in that: The fixing assembly (4) further comprises a fixing gasket (43), wherein the fixing gasket (43) is sleeved on the fixing stud (41), and the fixing gasket (43) is arranged between the top wall of the pressing block (3) and the bottom wall of the fixing nut (42).

5. The diesel engine cylinder head saddle gasket according to claim 3, characterized in that: The side wall of the pressing block (3) is provided with an auxiliary hole (33) which is in communication with the third fixing groove (32) and the pressing groove (31).

6. The diesel engine cylinder head saddle gasket according to claim 1, characterized in that: Connecting rods (5) are provided between adjacent pressing blocks (3).

7. A diesel engine cylinder head saddle gasket according to claim 6, characterized in that: The pressing block (3) is provided with a reinforcing block (51), and the reinforcing block (51) is connected to the connecting rod (5).

8. The diesel engine cylinder head saddle gasket according to claim 6, characterized in that: The connecting rod (5) is provided with an abutment block (52), and the abutment block (52) can abut against the first cushion block (1) and the second cushion block (2).

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