Air cylinder assembly for electric hammer

Abstract

The invention discloses an air cylinder assembly for an electric hammer. The air cylinder assembly comprises a cylinder body, wherein one end of the cylinder body is provided with a transmission gearin a sleeved mode, one end of the transmission gear is provided with a gear face, and the gear face is meshed with a motor transmission mechanism; the portion, close to the transmission gear, of the cylinder body is provided with a clutch sleeve in a sleeved mode, and the side, close to the clutch sleeve, of the cylinder body is provided with a torque spring in a sleeved mode; and the other end, far away from the transmission gear, of the clutch sleeve is provided with a limiting sleeve in a sleeved mode, the other end, far away from the clutch sleeve, of the limiting sleeve is provided with areset spring, the other end, far away from the limiting sleeve, of the reset spring is provided with a fixing sleeve, and a locking sleeve is arranged on peripheries of the clutch sleeve and the limiting sleeve in sleeving mode. According to the air cylinder assembly for the electric hammer, the transmission gear is limited on a transmission gear fixing part, and therefore the transmission gear cannot axially slide; the clutch sleeve is arranged, the torque spring abuts against the clutch sleeve, the limiting sleeve is arranged, and the arranged reset spring abuts against the limiting sleeve,so that the friction force among the transmission gear, the clutch sleeve and the cylinder body is reduced, and the disassembly convenience is improved; and the locking sleeve is arranged, so that the working state of the electric hammer is adjusted more conveniently and efficiently.

Description

technical field [0001] The invention relates to the technical field of electric hammers, in particular to an electric hammer cylinder assembly. Background technique [0002] The transmission gear on the cylinder block of the existing electric hammer cylinder is directly supported by a torsion spring, see figure 2 , in the actual use process, the transmission gear will slide on the cylinder body with the spring, and will always be in a rotating state in the hammer drill state, rotating on the cylinder. Over time, it will cause heat and wear, which greatly affects the transmission gear and cylinder. At the same time, in order to achieve the effect, the diameter of the torsion spring is relatively thick, and the spring torsion is relatively large, which makes it very difficult to disassemble the transmission gear, which affects the efficiency of use and maintenance; and it is inconvenient to adjust the working state of the electric hammer. Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

[0002] The transmission gear on the cylinder block of the existing electric hammer cylinder is directly supported by a torsion spring, see figure 2 , in the actual use process, the transmission gear will slide on the cylinder body with the spring, and will always be in a rotating state in the hammer drill state, rotating on the cylinder. Over time, it will cause heat and wear, which greatly affects the transmission gear and cylinder. At the same time, in order to achieve the effect, the diameter of the torsion spring is relatively thick, and the spring torsion is relatively large, which makes it very difficult to disassemble the transmission gear, which affects the efficiency of use and maintenance; and it is inconvenient to adjust the working state of the electric hammer

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