Improved structure of air compressor

Abstract

The invention provides an improved structure of an air compressor. The rotating torque wheel of the air compressor is provided with a central shaft hole with a female thread and a connecting rod. The central shaft hole of the rotating torque wheel corresponds to a bearing equipped with In the positioning hole of the base, a bolt passes through the bearing installed in the base to the rotating torque wheel and is screwed and fixed in the central shaft hole, and the connecting rod on the rotating torque wheel is pivotally connected with the piston body, so that The piston body performs reciprocating compression in the cylinder to generate compressed air, and the rotating torque wheel can directly and tightly clamp the bearing through the bolt, so that the positioning of the bolt and the bearing will not cause loosening during the operation of the rotating torque wheel. Loosening will not easily cause the bearing in the second positioning hole to be damaged, and indirectly keep the piston body in the best state of reciprocating linear motion up and down in the cylinder.

Description

technical field [0001] The invention relates to an improved structure of an air compressor, in particular to an improved structure of an air compressor. Background technique [0002] refer to Figure 8 to Figure 10 , showing a conventional vehicle-mounted air compressor 1, the air compressor 1 includes a base 11, a cylinder 12 combined on the base 11, a motor 13 assembled on the base and the motor can be received 13 drives a piston body 14 that reciprocates in the cylinder 12. The motor 13 drives the piston body 14 to reciprocate in the cylinder 12 to complete the suction, compression and discharge of the pressurized gas. [0003] Generally speaking, the motor 13 of the conventional vehicle-mounted air compressor 1 drives the piston body 14 to reciprocate through the transmission of a gear mechanism and a crank mechanism. This gear mechanism comprises the pinion 151 that is installed on the spindle of motor 13 and the bull gear 152 that meshes with pinion 151, and the weig...

AI Technical Summary

Problems solved by technology

During the reciprocating movement of the piston body 14 in the cylinder 12, there is often deformation movement, which affects the efficiency of the air compressor and reduces the service life of the air compressor

After in-depth research by the inventor, it was found that one of the reasons comes from the phenomenon that the base 11 of conventional plastic material will be slightly softened due to high temperature, so when the piston body 14 reciprocates at high frequency, the piston body 14 and the bearing 111 are involved In this case, in the aforementioned situation where the shaft rod 162 and the bearing 111 are locked by means of a screw 17, it often happens that the male thread 171 of the screw 17 and the screw hole 163 containing the female thread are not deep enough for the combination of the screw teeth. The torque of the locking screw 17 is insufficient, causing the shaft 162 to loosen on the inner radial surface of the inner ring of the bearing 111, and even cause idling, and the shaft hole 110 and the bearing 111 will be slightly offset under the high-frequency reciprocating motion of the piston body 14 The deformation causes the wall around the shaft hole 110 to be rubbed against each other by the side wall of the large gear 152 of the gear mechanism, causing the piston body 14 to shift accordingly, and the piston body 14 cannot maintain vertical movement in the cylinder 12, and is slightly deflected. Angle, so that when the piston body 14 is reciprocating, the inner wall of the shaft hole 110 where the shaft rod 162 is installed will be worn at a certain point due to uneven force, and form a motion of a non-fixed center of circle. phenomenon, it is easy to cause the piston body 14 to produce deformation motion when reciprocating in the cylinder 12, resulting in easy damage to the bearing 111 in the piston body 14 and the shaft hole 110, and moreover, the base 11 covers the upper and lower ends of the bearing 111 The surface, the distance between the upper surface 112 of the base 11 and the outer plane 113 of the bearing 111 installed in the base 11 is the distance D, so that the thickness distance E of the base 11 cannot be reduced to reduce the space of the finished product. Third, the piston body 14 The torque to the bearing 111 is the distance F+D from the piston body 14 to the outer plane 113 of the bearing 111, the torque cannot be shortened to reduce the inclination angle of the shaft 162, reduce the load of the bearing 111, and shorten the service life

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