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Steel ball raceway type transmission device and electric air pump

A transmission and raceway technology, applied in the direction of variable displacement pump components, pumps, piston pumps, etc., can solve the problem of non-parallel central axes, and achieve the effects of convenient disassembly and installation, high efficiency and compact structure

Pending Publication Date: 2018-08-10
南京塑维网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problem that the central axis of the piston is not parallel to the central axis of the cylinder body during the reciprocating motion of the existing electric air pump with a connecting rod and piston that drive the piston, the present invention provides a steel ball raceway transmission Device and Electric Air Pump

Method used

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  • Steel ball raceway type transmission device and electric air pump
  • Steel ball raceway type transmission device and electric air pump
  • Steel ball raceway type transmission device and electric air pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 As shown, a steel ball raceway transmission device includes a piston 2, a connecting rod 3, a rotating sleeve 11 and steel balls, one end of the connecting rod 3 and the piston 2 are integrated, and the center of the piston 2 axis and the central axis of the connecting rod 3 are parallel to each other, the connecting rod 3 is located in the rotating sleeve 11, the outer circumference of the connecting rod 3 is provided with a raceway groove 12, and the raceway groove 12 surrounds the outer circumference of the connecting rod 3 in an elliptical shape, and a hemispherical groove 13 is opened on the inner wall of the rotating sleeve 11, and the steel ball is located between the raceway groove 12 and the spherical groove 13 Between, the end of the rotating sleeve 11 away from the connecting rod 3 is connected with the driving motor.

[0043] When the drive motor drives the rotating sleeve 11 to rotate, the spherical steel ball in the hemispherical groove o...

Embodiment 2

[0047] A steel ball raceway transmission device, its structure is different from that of Embodiment 1, the difference is that: the end of the rotating sleeve 11 away from the piston 2 is equipped with a driven gear coaxial with the connecting rod 3 , that is, the axis of the driven gear and the central axis of the connecting rod 3 are on a straight line, the output shaft of the driving motor is provided with a transmission gear, and the driven gear and the transmission gear are meshed with each other to drive The motor drives the transmission gear to rotate, and then drives the rotating sleeve 11 to rotate. During the rotation of the rotating sleeve 11, the steel ball located in the hemispherical groove 13 rolls in the raceway groove 12, and at the same time drives the connecting rod 3 in the rotating sleeve. The barrel 11 performs telescopic movement along the central axis of the rotating sleeve 11, thereby driving the piston 2 to reciprocate in the cylinder body 1, and the di...

Embodiment 3

[0049] Such as figure 1 As shown, a steel ball raceway transmission device, its structure is compared with the embodiment 1, the difference is that: the end of the rotating sleeve 11 far away from the piston 2 is equipped with a planetary carrier 17, and the planetary carrier 17 The inner wall of the drive motor is provided with teeth, the output shaft of the drive motor is provided with a sun gear 18, and the planet carrier 17 and the sun gear 18 rotate around the same center, the sun gear 18 and the planet carrier 17 A planetary gear 19 is arranged between them, the teeth of the planet carrier 17 mesh with the planetary gear 19, and the sun gear 18 and the planetary gear 19 mesh with each other. The transmission mode of the planetary gear train in this embodiment has It has the advantages of compact structure, small size, large carrying capacity, large transmission power range and transmission ratio range, low operating noise, high efficiency and long life.

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Abstract

The invention discloses a steel ball raceway type transmission device and an electric air pump, and belongs to the technical field of gas-filling devices. The steel ball raceway type transmission device comprises a piston, a connecting rod, a rotating sleeve and a steel ball, one end of the connecting rod and the piston are of an integrated structure, and the central axis of the piston is parallelto the central axis of the connecting rod. The connecting rod is arranged in the rotating sleeve, a raceway groove is formed in the periphery of the connecting rod, the raceway groove surrounds the periphery of the connecting rod in an oval shape, a hemispherical groove is formed in the inner wall of the rotating sleeve, and the steel ball is located between the raceway groove and the hemispherical groove. A driving motor is connected to the end, away from the connecting rod, of the rotating sleeve, the driving motor drives the connecting rod to drive the piston to perform a reciprocating motion in a cylinder body through the steel ball raceway type transmission device, the direction of the force of the connecting rod applied on the piston is always parallel to the central axis of the piston, and the problem that the central axis of the piston is not parallel to the central axis of the cylinder body during the reciprocating motion is solved. The steel ball raceway type transmission device has the advantages of low energy consumption, high exhaust efficiency and long service life.

Description

technical field [0001] The invention belongs to the technical field of inflators, and relates to a steel ball raceway transmission device and an electric air pump. Background technique [0002] The hand-held electric air pump is a kind of daily tool that is driven by a motor to complete some inflation work, such as balloons, basketballs, swimming rings, car tires, etc. that need to be inflated. Compared with the previous manual tools, the appearance of the hand-held electric air pump greatly facilitates the daily inflation work needs of workers or users. [0003] Existing air pump mainly comprises: pump body and cylinder, is provided with connecting rod, cylinder body, piston, air inlet and air outlet in the cylinder. The cylinder is set in the pump body. The connecting rod in the cylinder drives the piston in the cylinder to reciprocate under the action of external force. During the reciprocating movement of the piston, the external gas enters the cylinder from the air inl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B35/04F04B39/00F04B39/12F04B39/10
CPCF04B35/04F04B39/0005F04B39/0022F04B39/10F04B39/122
Inventor 马播
Owner 南京塑维网络科技有限公司
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