CN211144631U

CN211144631U - Head assembly structure of combustion chamber

Info

Publication number: CN211144631U
Application number: CN201921693327.6U
Authority: CN
Inventors: 陈镇平; 王志远
Original assignee: Changzhou Spaceflight Yueda Precision Machinery Co ltd
Current assignee: Changzhou Spaceflight Yueda Precision Machinery Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-07-31
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a combustion chamber head assembly structure, which comprises a cylinder body, wherein a sealing buckle plate is arranged at the top of the cylinder body, the sealing buckle plate is hermetically arranged with the top of the cylinder body, a guide rod is arranged at the bottom of the cylinder body, a piston is arranged on the inner wall of the cylinder body, and the bottom of the piston is movably arranged with the top of the guide rod; the top of the cylinder body is provided with a connecting ring, the sealing buckle plate is connected with the top of the cylinder body through the connecting ring, and the top of the piston is a combustion chamber; spark plug and fuel sprayer are installed to the mounting hole through sealed buckle top, and install at sealed buckle and cylinder body, the installation is established to sealed installation sleeve pipe between sealed buckle and cylinder body top cover, inlay the top at the cylinder body bottom sealed installation sleeve pipe, sealed installation sleeve pipe top is installed sealedly bottom sealed buckle, the clamping ring between sealed installation sleeve pipe top and the sealed buckle bottom carries out seal installation, seal the support through upper seal apron and sealed steel ring and lower seal apron, sealed effect has been improved.

Description

Head assembly structure of combustion chamber

Technical Field

The utility model relates to an engine field specifically is a combustion chamber head assembly structure.

Background

An engine is a machine that can convert other forms of energy into mechanical energy, including, for example, internal combustion engines, external combustion engines, electric motors, and the like. Such as internal combustion engines, typically convert chemical energy into mechanical energy. The engine is applicable to both the power generation device and the whole machine including the power device. The meaning of an engine is that of a mechanical device that generates power. The engine mainly includes a water-cooled engine, and a cylinder block and an upper crankcase in the water-cooled engine are usually cast into a whole, called a cylinder block crankcase, and also called a cylinder block. The cylinder block is generally cast from gray cast iron, and the cylindrical cavity at the upper part of the cylinder block is called as a cylinder, the lower half part is a crankcase for supporting a crankshaft, and the inner cavity of the cylinder block is a space for the crankshaft to move. A plurality of reinforcing ribs, a cooling water jacket, a lubricating oil channel and the like are cast in the cylinder block. The semi-spherical combustion chamber is a common combustion chamber of the cylinder body, the semi-spherical combustion chamber has compact structure, the spark plug is arranged in the center of the combustion chamber, the flame stroke is short, and therefore, the combustion rate is high, the heat dissipation is less, and the heat efficiency is high. The structure of the combustion chamber also allows the valve to be arranged in double rows, the diameter of the air inlet is larger, so the charging efficiency is higher, although the valve mechanism becomes more complex, the combustion chamber is beneficial to exhaust purification, and the combustion chamber is widely applied to car engines.

However, the conventional cylinder block is integrally cast, so that the sealing effect can be ensured, and meanwhile, if a fault occurs, the cylinder block is inconvenient to maintain, the disassembly is not flexible compared with the disassembly method mentioned in the application document CN201711108381.5, the disassembly is inconvenient in the use of the conventional engine, the maintenance of a combustion chamber at the top of the cylinder is influenced, the service life is shortened, and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a combustor head assembly structure to but traditional cylinder block belongs to integrative casting among the above-mentioned background art of solution, can guarantee sealed effect, if the maintenance of being not convenient for breaks down simultaneously, the dismantlement dumb that mentions among the contrast application file CN201711108381.5 also has the dismantlement of being not convenient for in the use of traditional engine, influences the maintenance of the combustor at cylinder top, shortens the life-span scheduling problem that uses.

In order to achieve the above object, the utility model provides a following technical scheme: a head assembly structure of a combustion chamber comprises a cylinder body and a sealing pinch plate, wherein the top of the cylinder body is hermetically mounted with the sealing pinch plate, a piston is mounted on the inner wall of the cylinder body, and the bottom of the piston is movably mounted with the top of a guide rod;

the top of the cylinder body is provided with a connecting ring, the sealing buckle plate is connected with the top of the cylinder body through the connecting ring, and the top of the piston is a combustion chamber;

the connecting ring comprises an upper sealing cover plate, a sealing steel ring is installed below the upper sealing cover plate, a lower sealing cover plate is installed below the sealing steel ring, connecting bolt holes are formed in the upper sealing cover plate, the sealing steel ring and the lower sealing cover plate, fixing bolts are installed in the connecting bolt holes in a matched mode, and the upper sealing cover plate is connected with the sealing steel ring and the lower sealing cover plate through the fixing bolts.

Preferably, the top of the sealing buckle plate is provided with a plurality of groups of mounting holes.

Preferably, sealed installation sleeve pipe is installed to the clamping ring outer wall, sealed installation sleeve pipe with the inner wall screw thread installation at cylinder body top, sealed installation sleeve pipe top with the installation is inlayed to the clamping ring, sealed installation sleeve pipe is the aluminum alloy material.

Preferably, a fixing groove is formed in the sealing steel ring, a fixing block is welded on the lower sealing cover plate and the side, adjacent to the sealing steel ring, of the lower sealing cover plate, and the fixing block and the fixing groove are installed in an embedded mode.

Preferably, the upper sealing cover plate and the lower sealing cover plate are made of alloy materials.

The utility model provides a combustion chamber head assembly structure possesses following beneficial effect: the spark plug and the oil nozzle are installed through the installation hole in the top of the sealing buckle plate, the sealing buckle plate and the cylinder body are installed, the sleeve is installed between the sealing buckle plate and the top of the cylinder body in a sealing mode, and the upper sealing cover plate, the sealing steel ring and the lower sealing cover plate are used for sealing and supporting, so that the sealing effect is improved;

the utility model discloses changed the mode of traditional combustion chamber and sealed buckle's installation, be convenient for maintain and dismantle, sealed installation is carried out with sealed steel ring and lower seal cover plate to the upper seal apron simultaneously and sealed effect is guaranteed to the sealed.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the inside of the cylinder body of the present invention;

fig. 3 is a schematic view of the seal mounting sleeve of the present invention;

fig. 4 is a schematic view of the connecting ring of the present invention;

fig. 5 is a top view of the sealing buckle plate of the present invention.

In the figure: 1. sealing the pinch plate; 2. a connecting ring; 3. a cylinder body; 4. a guide bar; 5. a piston; 6. a combustion chamber; 7. fixing the bolt; 8. an upper sealing cover plate; 9. sealing the steel ring; 10. fixing grooves; 11. a lower sealing cover plate; 12. a fixed block; 13. mounting holes; 14. and (5) sealing and installing the sleeve.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-5, the utility model provides a technical solution: a combustion chamber head assembly structure comprises a cylinder body 3 and a sealing buckle plate 1, wherein the top of the cylinder body 3 is hermetically mounted with the sealing buckle plate 1, a piston 5 is mounted on the inner wall of the cylinder body 3, the bottom of the piston 5 is movably mounted with the top of a guide rod 4, and a sealing mounting sleeve between the sealing buckle plate and the top of the cylinder body is sleeved and mounted;

the top of the cylinder body 3 is provided with a connecting ring 2, the sealing buckle plate 1 is connected with the top of the cylinder body 3 through the connecting ring 2, and the top of the piston 5 is provided with a combustion chamber 6;

the connecting ring 2 comprises an upper sealing cover plate 8, a sealing steel ring 9 is installed below the upper sealing cover plate 8, a lower sealing cover plate 11 is installed below the sealing steel ring 9, connecting bolt holes are formed in the upper sealing cover plate 8, the sealing steel ring 9 and the lower sealing cover plate 11, fixing bolts 7 are installed in the connecting bolt holes in a matched mode, the upper sealing cover plate 8 is connected with the sealing steel ring 9 and the lower sealing cover plate 11 through the fixing bolts 7, the sealing installation sleeve between the sealing buckle plate and the top of the cylinder body is sleeved and installed, the bottom of the sealing installation sleeve is embedded at the top of the cylinder body, the top of the sealing installation sleeve is installed and sealed with the bottom of the sealing buckle plate, the connecting ring between the top of the sealing installation sleeve and the bottom of the sealing buckle plate is installed in a sealing mode, sealing support is conducted through the upper sealing cover plate and.

Secondly, a plurality of groups of mounting holes 13 are formed in the top of the sealing buckle plate 1, the mounting holes are formed in the top of the sealing buckle plate, a spark plug and an oil nozzle are mounted, and the sealing buckle plate and a cylinder body are mounted. Sealed installation sleeve pipe 14 is installed to 2 outer walls of clamping ring, the inner wall threaded mounting at sealed

installation sleeve pipe

14 and 3 tops of cylinder body, the installation is inlayed with clamping ring 2 at sealed installation sleeve pipe 14 top, sealed installation sleeve pipe 14 is the aluminum alloy material, sealed installation sleeve pipe 14 guarantees sealed installation's stable effect with the inner wall threaded mounting at 3 tops of cylinder body, and sealed installation sleeve pipe 14 carries out sealed installation with clamping ring 2, has improved sealed installation's effect. A fixing groove 10 is formed in the sealing steel ring 9, a fixing block 12 is welded on one surface of the lower sealing cover plate 11, which is adjacent to the sealing steel ring 9, and the fixing block 12 is embedded in the fixing groove 10; 1 bottom of sealed buckle and the installation of sealed 14 screw thread seals of sleeve pipe, the clamping ring 2 is arranged in between 1 bottom of sealed buckle and the sealed installation sleeve pipe 14, upper seal apron 8 and lower seal apron 11 are the alloy material, the installation is inlayed with fixed block 12 of lower seal apron 11 to the fixed slot 10 that sealed steel ring 9 was seted up, can guarantee the stable effect of installation, sealed effect has been improved simultaneously, the sealed effect of 2 installations of clamping ring has been improved, it is less to receive the guide effect to compare in its sealed effect of traditional cylinder.

The operation principle is as follows: the spark plug and the oil nozzle are installed through the installation hole in the top of the sealing buckle plate, the sealing buckle plate and the cylinder body are installed, the sleeve is installed between the sealing buckle plate and the top of the cylinder body in a sealing mode, and the upper sealing cover plate, the sealing steel ring and the lower sealing cover plate are used for sealing and supporting, so that the sealing effect is improved;

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A kind of combustion chamber head assembly structure, characterized by: the cylinder comprises a cylinder body (3) and a sealing buckle plate (1), wherein the top of the cylinder body (3) is hermetically mounted with the sealing buckle plate (1), a guide rod (4) is mounted at the bottom of the cylinder body (3), a piston (5) is mounted on the inner wall of the cylinder body (3), and the bottom of the piston (5) is movably mounted with the top of the guide rod (4);

the top of the cylinder body (3) is provided with a connecting ring (2), the sealing buckle plate (1) is connected with the top of the cylinder body (3) through the connecting ring (2), and the top of the piston (5) is provided with a combustion chamber (6);

the connecting ring (2) comprises an upper sealing cover plate (8), a sealing steel ring (9) is installed below the upper sealing cover plate (8), a lower sealing cover plate (11) is installed below the sealing steel ring (9), the upper sealing cover plate (8) and the sealing steel ring (9) and a connecting bolt hole is formed in the lower sealing cover plate (11), a fixing bolt (7) is installed in the connecting bolt hole in a matched mode, and the upper sealing cover plate (8) and the sealing steel ring (9) and the lower sealing cover plate (11) are connected through the fixing bolt (7).

2. A combustion chamber head assembling structure as set forth in claim 1, wherein: the top of the sealing buckle plate (1) is provided with a plurality of groups of mounting holes (13).

3. A combustion chamber head assembling structure as set forth in claim 1, wherein: sealed installation sleeve pipe (14) are installed to clamping ring (2) outer wall, sealed installation sleeve pipe (14) with the inner wall screw thread installation at cylinder body (3) top, sealed installation sleeve pipe (14) top with the installation is inlayed to clamping ring (2), sealed installation sleeve pipe (14) are the aluminum alloy material.

4. A combustion chamber head assembling structure as set forth in claim 1, wherein: fixed slots (10) are formed in the sealing steel ring (9), a fixed block (12) is welded on one side, adjacent to the sealing steel ring (9), of the lower sealing cover plate (11), and the fixed block (12) and the fixed slots (10) are embedded and installed.

5. A combustion chamber head assembling structure as set forth in claim 1, wherein: the upper sealing cover plate (8) and the lower sealing cover plate (11) are made of alloy materials.