CN213775544U

CN213775544U - Motorcycle cylinder body structure

Info

Publication number: CN213775544U
Application number: CN202022412076.9U
Authority: CN
Inventors: 刘涛; 余建君
Original assignee: Chongqing Jiansen Power Machinery Co ltd
Current assignee: Chongqing Jiansen Power Machinery Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-07-23
Anticipated expiration: 2030-10-27

Abstract

The utility model provides a motorcycle cylinder block structure belongs to motorcycle technical field. The motorcycle cylinder body solves the problems that the existing motorcycle cylinder body is unreasonable in structural design, so that water is easy to enter the cylinder and the valve is easy to break. This motorcycle cylinder block structure, including integrated into one piece's cylinder body and cylinder liner, be equipped with in the cylinder body and encircle the cylinder liner and both sides confined cooling chamber about and, the lateral part of cylinder body is equipped with the inhalant canal with cooling chamber intercommunication, and the outer anchor ring in cooling chamber has the drainage recess that extends from bottom to top, and the top of cylinder body has the apopore that is just to setting up with drainage recess one by one, and the lower extreme of apopore and the drainage recess intercommunication just to setting up with it. The utility model effectively avoids the cooling water from entering the cylinder sleeve by increasing the distance between the water outlet hole and the cylinder sleeve, and the normal work and the service life of the engine can not be influenced; the cooling water entering from the water inlet channel annularly rotates and gradually rises to cool the cylinder body and the cylinder sleeve in mean value, and the cooling effect is good.

Description

Motorcycle cylinder body structure

Technical Field

The utility model belongs to the technical field of the motorcycle, a motorcycle cylinder block structure is related to.

Background

The cylinder block of a motorcycle engine generates a large amount of heat during operation, and the heat energy is accumulated in the cylinder block, which may have a very adverse effect on the physical properties of the cylinder block. Therefore, the Chinese patent discloses a water-cooling motorcycle cylinder body [ with the publication number of CN205605322U ], which comprises a cylinder body and a cylinder sleeve which is integrally formed with the cylinder body and is embedded in the cylinder body, wherein a water-cooling channel is arranged between the cylinder body and the cylinder sleeve, radiating fins are annularly arranged on the outer surface of the cylinder body, a radiating channel is formed between every two adjacent radiating fins, the thickness of each radiating fin is gradually reduced from the joint of the radiating fin and the cylinder body outwards, and a plurality of grooves are respectively arranged on the opposite side walls of the radiating fins.

The upper end of the water cooling channel in the cylinder block is completely opened, so that an open circular water channel is formed, the open circular water channel is close to a cylinder hole and is only 6-7mm, the temperature at the position is high, and the cylinder head sealing gasket on the upper surface of the cylinder sleeve is subjected to form and position errors caused by processing, so that burning high-temperature and high-pressure gas easily enters a gap between the cylinder block and the cylinder head, the cylinder head sealing gasket is ablated, cooling water enters an engine, the phenomenon of whitening of engine oil occurs, and the normal work and the service life of the engine are seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and provides a motorcycle cylinder body structure with cooling water not easy to enter an engine.

The purpose of the utility model can be realized by the following technical proposal:

the motorcycle cylinder body structure comprises a cylinder body and a cylinder sleeve which are integrally formed, wherein a cooling cavity which surrounds the cylinder sleeve and is sealed at the upper side and the lower side is arranged in the cylinder body, a water inlet channel communicated with the cooling cavity is arranged at the side part of the cylinder body, a plurality of drainage grooves extending from bottom to top are formed in the outer annular surface of the cooling cavity, a plurality of water outlet holes which are opposite to the drainage grooves one by one are formed in the top of the cylinder body, and the lower ends of the water outlet holes are communicated with the drainage grooves which are opposite to the water outlet holes.

Because be equipped with the drainage recess, and the apopore just right with the drainage recess, increased the distance of apopore to cylinder liner, not only sealed pad setting up the waterproof muscle of dual for the cylinder head provides favourable space, can also effectively prevent to be burnt from the waterproof muscle far away of cylinder liner, effectively avoided the cooling water to get into the cylinder liner, can not influence the normal work and the life of engine.

In the motorcycle cylinder block structure, the section of the water outlet hole is circular.

In the motorcycle cylinder body structure, the distance from the water outlet hole to the cylinder sleeve is 10-30 mm.

In the motorcycle cylinder body structure, the number of the drainage grooves is 2-4.

In the cylinder block structure of the motorcycle, the drainage grooves are 4: the drainage groove I and the drainage groove II are located on one side of the cylinder body, the drainage groove III and the drainage groove IV are located on the other side of the cylinder body, the drainage groove I and the drainage groove III are arranged oppositely, and the drainage groove II and the drainage groove IV are arranged oppositely.

In the motorcycle cylinder block structure, the water outlet which is just opposite to the first drainage groove is a first water outlet, the water outlet which is just opposite to the second drainage groove is a second water outlet, the water outlet which is just opposite to the third drainage groove is a third water outlet, the water outlet which is just opposite to the fourth drainage groove is a fourth water outlet, the aperture of the first water outlet is equal to the aperture of the second water outlet, and the aperture of the third water outlet is equal to the aperture of the fourth water outlet. The distance from the first water outlet to the cylinder sleeve is equal to the distance from the second water outlet to the cylinder sleeve, and the distance from the third water outlet to the cylinder sleeve is equal to the distance from the fourth water outlet to the cylinder sleeve.

In the motorcycle cylinder block structure, the aperture of the water outlet hole three is larger than the aperture of the water outlet hole one. The cooling water flowing out of the water outlet three and the water outlet four cools the exhaust valve in the cylinder head, the cooling water flowing out of the water outlet one and the water outlet two cools the inlet valve in the cylinder head, and the temperature of the exhaust valve is higher than that of the inlet valve, so that the aperture of the water outlet three and the aperture of the water outlet four are set to be larger.

In the motorcycle cylinder body structure, the width of the third drainage groove is equal to that of the fourth drainage groove, the width of the first drainage groove is equal to that of the second drainage groove, and the width of the third drainage groove is larger than that of the first drainage groove.

In the motorcycle cylinder body structure, the inner ring surface of the cooling cavity is the outer surface of the cylinder sleeve, so that the cooling water in the cooling cavity can directly cool the cylinder sleeve.

In the motorcycle cylinder block structure, the water inlet channel extends along the tangential direction of the cooling cavity. The inhalant canal gets into with tangential mode, makes the coolant liquid get into the cooling chamber and is the surrounding state and upwards flow, and the cooling that flows around and make the cylinder jacket is more even, guarantees that the thermal field is average around the cylinder jacket, and metal thermal deformation is little, does benefit to the normal work of piston, piston ring, and the cooling effect is better. Wherein, 2 inlet channels are provided, one of which extends along the tangential direction of the cooling cavity, and the other inlet channel is inclined upwards to feed water. The cooling water entering from the water inlet channel annularly rotates and gradually rises to cool the cylinder body and the cylinder sleeve in mean value, and the cooling effect is good.

Compared with the prior art, the motorcycle cylinder body structure has the following advantages:

the drainage groove is arranged, and the water outlet hole is opposite to the drainage groove, so that the distance from the water outlet hole to the cylinder sleeve is increased, a favorable space is provided for the double waterproof ribs arranged on the cylinder head sealing gasket, the waterproof ribs far away from the cylinder sleeve can be effectively prevented from being ablated, cooling water is effectively prevented from entering the cylinder sleeve, and the normal work and the service life of an engine cannot be influenced; because the temperature of exhaust valve is higher than the temperature of (air) intake valve, consequently set up apopore three and apopore four aperture great, guarantee that the cooling water that gets into in the unit interval is more, carry out the pertinence cooling to the exhaust valve, the cooling effect is good.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a top view of the preferred embodiment of the present invention.

Fig. 3 is a transverse cross-sectional view of a preferred embodiment of the present invention.

In the figure, 1, a cylinder body; 2. a cylinder liner; 3. a cooling chamber; 31. an outer annular surface; 32. an inner ring surface; 4. a water inlet channel; 51. a first drainage groove; 52. a second drainage groove; 53. a third drainage groove; 54. a fourth drainage groove; 61. a water outlet hole I; 62. a water outlet hole II; 63. a water outlet hole III; 64. and a water outlet hole IV.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The motorcycle cylinder body structure shown in fig. 1 comprises a cylinder body 1 and a cylinder sleeve 2 embedded in the cylinder body 1, wherein the cylinder body 1 and the cylinder sleeve 2 are integrally formed, as shown in fig. 3, a cooling cavity 3 which surrounds the cylinder sleeve 2 and is closed at the upper side and the lower side is arranged in the cylinder body 1, and the inner annular surface 32 of the cooling cavity 3 is the outer surface of the cylinder sleeve 2, so that cooling water can directly cool the cylinder sleeve 2. The cooling cavity 3 is a closed annular structure, as shown in fig. 1 and 3, a water inlet channel 4 communicated with the cooling cavity 3 is arranged on the side portion of the cylinder body 1, the water inlet channel 4 extends along the tangential direction of the cooling cavity 3, and cooling water entering from the water inlet channel 4 circulates in the cooling cavity 3, so that the water flow speed and the cooling efficiency can be improved.

In this embodiment, the outer annular surface 31 of the cooling cavity 3 has a plurality of drainage grooves extending from bottom to top, the top of the cylinder body 1 has a plurality of water outlets facing the drainage grooves one by one, and the lower ends of the water outlets are communicated with the drainage grooves facing the water outlets. Wherein, the cross-section of each drainage groove is approximately arc-shaped and is arranged in a centering way with the water outlet hole which is arranged opposite to the drainage groove.

As shown in fig. 2, the cross section of the water outlet hole is circular, the distance from the water outlet hole to the cylinder sleeve 2 is 10-30mm, and the distance from the water outlet hole to the cylinder sleeve 2 is large, so that a favorable space is provided for the double waterproof ribs arranged on the cylinder head sealing gasket, the waterproof ribs far away from the cylinder sleeve 2 can be effectively prevented from being ablated, cooling water is effectively prevented from entering the cylinder sleeve 2, and the normal work and the service life of an engine cannot be influenced.

As shown in fig. 3, the drainage grooves are 4: the drainage groove I51 and the drainage groove II 52 are positioned on one side of the cylinder body 1, and the drainage groove III 53 and the drainage groove IV 54 are positioned on the other side of the cylinder body 1, the drainage groove I51 is opposite to the drainage groove III 53, and the drainage groove II 52 is opposite to the drainage groove IV 54. As shown in fig. 2, the first water outlet aligned with the first drainage groove 51 is a first water outlet 61, the second water outlet aligned with the second drainage groove 52 is a second water outlet 62, the third water outlet aligned with the third drainage groove 53 is a third water outlet 63, the fourth water outlet aligned with the fourth drainage groove 54 is a fourth water outlet 64, the aperture of the first water outlet 61 is equal to the aperture of the second water outlet 62, and the aperture of the third water outlet 63 is equal to the aperture of the fourth water outlet 64.

As shown in fig. 2, the aperture of outlet opening three 63 is larger than the aperture of outlet opening one 61. The cooling water flowing out of the water outlet three 63 and the water outlet four 64 cools the exhaust valve in the cylinder head, the cooling water flowing out of the water outlet one 61 and the water outlet two 62 cools the intake valve in the cylinder head, and the temperature of the exhaust valve is higher than that of the intake valve, so the aperture of the water outlet three 63 and the water outlet four 64 is set to be larger. As shown in fig. 3, the width of the third drainage groove 53 is equal to that of the fourth drainage groove 54, the width of the first drainage groove 51 is equal to that of the second drainage groove 52, and in order to realize effective supply of the cooling liquid, the width of the third drainage groove 53 is larger than that of the first drainage groove 51.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The motorcycle cylinder body structure comprises a cylinder body (1) and a cylinder sleeve (2) which are integrally formed, and is characterized in that a cooling cavity (3) which surrounds the cylinder sleeve (2) and is sealed at the upper side and the lower side is arranged in the cylinder body (1), a water inlet channel (4) communicated with the cooling cavity (3) is arranged on the side portion of the cylinder body (1), a plurality of drainage grooves extending from bottom to top are formed in the outer annular surface (31) of the cooling cavity (3), a plurality of water outlet holes which are opposite to the drainage grooves are formed in the top of the cylinder body (1), and the lower ends of the water outlet holes are communicated with the drainage grooves which are opposite to the water outlet holes.

2. The motorcycle cylinder block structure according to claim 1, wherein the cross section of the water outlet hole is circular.

3. A motorcycle cylinder block structure according to claim 1, wherein the distance from the water outlet hole to the cylinder liner (2) is 10-30 mm.

4. A motorcycle cylinder block structure according to claim 1, 2 or 3, characterized in that the number of the drainage grooves is 2 to 4.

5. The motorcycle cylinder block structure according to claim 4, wherein the drainage grooves are 4: drainage groove one (51), drainage groove two (52) that are located cylinder body (1) one side department and drainage groove three (53) and drainage groove four (54) that are located cylinder body (1) opposite side department, drainage groove one (51) set up with drainage groove three (53) relatively, drainage groove two (52) set up with drainage groove four (54) relatively.

6. The motorcycle cylinder block structure according to claim 5, wherein the outlet hole disposed directly opposite to the first drainage groove (51) is a first outlet hole (61), the outlet hole disposed directly opposite to the second drainage groove (52) is a second outlet hole (62), the outlet hole disposed directly opposite to the third drainage groove (53) is a third outlet hole (63), the outlet hole disposed directly opposite to the fourth drainage groove (54) is a fourth outlet hole (64), the aperture of the first outlet hole (61) is equal to the aperture of the second outlet hole (62), and the aperture of the third outlet hole (63) is equal to the aperture of the fourth outlet hole (64).

7. The motorcycle cylinder block structure according to claim 6, wherein the aperture of the outlet hole three (63) is larger than the aperture of the outlet hole one (61).

8. The motorcycle cylinder block structure according to claim 7, wherein the drain groove three (53) and the drain groove four (54) have the same groove width, the drain groove one (51) and the drain groove two (52) have the same groove width, and the drain groove three (53) has a groove width larger than the drain groove one (51).

9. A motorcycle cylinder block structure according to claim 1, 2, or 3, characterized in that the inner ring surface (32) of the cooling chamber (3) is the outer surface of the cylinder liner (2).

10. A motorcycle cylinder block structure according to claim 1, 2 or 3, characterized in that the water inlet passage (4) extends in a tangential direction of the cooling chamber (3).