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Low-noise strong-impact weak-recoil electric hammer drill

A recoil, low-noise technology, used in engineering power tools and mining fields, can solve problems such as harming the health of operators, polluting the environment, and loud noise.

Inactive Publication Date: 2005-09-07
贺启宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the internal mechanical impact produces a lot of noise, which endangers the health of operators and pollutes the environment.

Method used

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  • Low-noise strong-impact weak-recoil electric hammer drill

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Experimental program
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Embodiment Construction

[0009] In the embodiment of the accompanying drawings, the drill pipe (1) is fixed on the slider (3) with a steel ball (2), the slider (3) and the power shaft (6) are made of an integral material, and the pressure plate (7) is sleeved on the On the power shaft (6), and fixed with the shaft sleeve (26), the slider (3) can slide up and down in the shaft sleeve (26), and the upper spring (5) and the lower spring ( 4) The position of the power shaft (6) in the shaft sleeve (26) can be maintained when the machine is stopped, and it can be used for vibration isolation when the machine is started. The shaft sleeve (26) is fixed on the casing (8), and the casing (8) There is a handle (14) on it, and an electric button (15) is arranged on the handle (14). The bevel gear A (19) is fixed on the motor shaft (17). (12) connection, the movable shaft (12) is installed on the movable bearing seat (13), the eccentric block (11) is fixed on the movable shaft (12), and the movable bearing seat (...

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Abstract

The invention is low-noise, strong-impulsion and weak-recoil electric hammer anvil, and belongs to the electric tools field. It is to solidify the kinematical bearing seat with eccentric block on the two plate springs. The plate springs, the base, the impulsion rod and the anvil rod are connected orderly. The impulsion can slide in the shaft sleeve and has the buffer and the spacing springs. When the electric machine driving the eccentric block to revolve, the circle vibration produced drives the anvil rod produce impulsion under the function of the plate spring, and meanwhile the electric machine shaft transmits the revolving movement to the anvil rod through the gear transmission and makes the anvil rod has hammer and anvil functions. The device does not have inner noise because it is without inner impulsion. The impulsion of the anvil rod is decided by the moment of the eccentric block and the revolving speed of the electric machine. The recoil is small as without the external power of the worker.

Description

technical field [0001] The invention belongs to mining and engineering power tools, in particular to electric hammer drills. Background technique [0002] The electric hammer drill used in the market produces the thumping method mainly with the piston as the thumping core rod to thump the drill rod. When this kind of hammer drill is in use, the operator must apply pressure with his hands to generate impact force from the impact inside the mechanism, so the impact force is small, the recoil force is large, and the internal mechanism is easy to damage, which increases the maintenance workload and reduces the use of the whole machine. life. Moreover, the internal mechanical impact produces a lot of noise, which endangers the health of operators and pollutes the environment. Contents of the invention [0003] The object of the present invention is to overcome the shortcomings of the above-mentioned electric hammer drills, and provide a novel low-noise and high-impact electri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25D16/00B25D17/24
Inventor 贺启宇
Owner 贺启宇
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