阅读说明：本技术 一种可拆卸的紧密连接结构 (Detachable closely connected structure ) 是由 孙慧侠 于 2020-12-02 设计创作，主要内容包括：本发明公开了一种可拆卸的紧密连接结构,包括曲轴和飞轮,所述的曲轴上设有锥面轴,飞轮中心设有与锥面轴相配的锥孔,飞轮上设有注油孔,飞轮内设有与注油孔相连的油道,所述的油道亦与锥孔相连通。本发明设计巧妙,结构简单,制造加工比较容易,且安装和拆卸方便,连接稳固。(The invention discloses a detachable tight connection structure, which comprises a crankshaft and a flywheel, wherein a conical shaft is arranged on the crankshaft, a conical hole matched with the conical shaft is formed in the center of the flywheel, an oil filling hole is formed in the flywheel, an oil duct connected with the oil filling hole is formed in the flywheel, and the oil duct is also communicated with the conical hole. The invention has the advantages of ingenious design, simple structure, easy manufacture and processing, convenient installation and disassembly and stable connection.)

1. The detachable tight connection structure is characterized by comprising a crankshaft and a flywheel, wherein the crankshaft is provided with a conical shaft, the center of the flywheel is provided with a conical hole matched with the conical shaft, the flywheel is provided with an oil filling hole, an oil duct connected with the oil filling hole is arranged in the flywheel, and the oil duct is also communicated with the conical hole.

2. A releasable fastening arrangement according to claim 1 wherein the area of engagement of the tapered bore with the tapered shaft is 75% or greater.

3. A releasable fastening arrangement according to claim 1, wherein the area of engagement of the tapered bore with the axis of the tapered surface is less than or equal to 0.03 mm.

4. A releasable attachment according to claim 1, wherein the tapered bore and the tapered shaft are arranged to engage by interference.

5. A detachable tight coupling structure according to claim 1, wherein said flywheel has a plurality of mounting holes.

6. A detachable tight connecting structure according to claim 5, wherein said number of said mounting holes is 4 to 8.

Technical Field

The invention relates to a detachable tight connection structure.

Background

At present, the connection between a flywheel and a crankshaft on an engine is generally positioned by a shaft diameter and a hole, and the flywheel and the crankshaft are connected and fastened by bolts. This requires corresponding connecting flanges on the crankshaft and flywheel. The disadvantages of the prior structure are that: the structure has the advantages that the manufacture is complex, the flange and the bolt hole are required to be designed on the crankshaft, the end face of the flange is perpendicular to the shaft diameter, and the precision is high. The flywheel and the crankshaft cannot be completely coaxial due to perpendicularity errors of the shaft diameter and the end surface, assembly and disassembly gaps and the like. This has an effect on the dynamic balance of the crankshaft itself.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a detachable tight connection structure which is convenient to connect.

The utility model provides a detachable closely connected structure, includes bent axle and flywheel, the bent axle on be equipped with the conical surface axle, the flywheel center is equipped with the taper hole that matches with the conical surface axle, is equipped with the oil filler point on the flywheel, is equipped with the oil duct that links to each other with the oil filler point in the flywheel, the oil duct also be linked together with the taper hole.

As a further improvement, the matching area of the taper hole and the taper shaft is more than or equal to 75 percent.

As a further improvement, the matching area of the taper hole and the taper shaft is less than or equal to 0.03 mm.

As a further improvement, the matching mode of the taper hole and the taper shaft is interference fit.

As a further improvement, the flywheel is provided with a plurality of mounting holes.

As a further improvement, the number of the mounting holes is 4-8.

Has the advantages that:

the invention has the advantages of ingenious design, simple structure, easy manufacture and processing, convenient installation and disassembly and stable connection.

Drawings

FIG. 1 is a schematic view showing the overall structure of a detachable tight coupling structure;

1. crankshaft 2, flywheel 3, conical shaft 4, conical hole 5, oil filling hole 6 and oil duct

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

As shown in figure 1, the detachable tight connection structure comprises a crankshaft 1, a flywheel 2, a conical shaft 3, a conical hole 4, an oil filling hole 5 and an oil passage 6.

The utility model provides a detachable close connection structure, includes bent axle 1 and flywheel 2, bent axle 1 on be equipped with conical surface axle 3, 2 centers of flywheel are equipped with the taper hole 4 that matches with conical surface axle 3, are equipped with oil filler point 5 on flywheel 2, are equipped with the oil duct 6 that links to each other with oil filler point 5 in the flywheel 2, oil duct 6 also be linked together with taper hole 4, the cooperation area more than or equal to 75% of taper hole 4 and conical surface axle 3, the cooperation area less than or equal to 0.03mm of taper hole 4 and conical surface axle 3, the cooperation mode of taper hole 4 and conical surface axle 3 is interference fit, is equipped with 4 ~ 8 mounting holes on the flywheel 2.

The crankshaft 1 and the flywheel 2 are connected by taper, torque is transmitted by interference of taper, hydraulic oil is injected by high pressure by an internally designed oil passage 6 during assembly and disassembly, and the conical shaft 3 is propped from the conical hole 4 by the high pressure oil to achieve the disassembly purpose.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.