Double saw blade device and method for reducing friction and collision of double saw blade device
A double saw blade, saw blade technology, applied in the direction of sawing machine tools, sawing machine equipment, metal sawing equipment, etc., can solve the problems of saw blade damage, wear, high heat and so on
Active Publication Date: 2012-07-25
HAMMER ELECTRIC POWER TOOLS
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Problems solved by technology
However, the common problem of this type of double saw blade device is that during the working process, due to the high-speed rotation of itself and the force and deformation caused by the action of the object to be cut, the gap between the two saw blades, especially at the outer edge, Mutual friction and collision often occur, resulting in damage to the saw blade, and even splashing debris to injure the operator
The resulting high heat and wear mean that in practice, dual saw blade units with isolating elements typically have a working life of only a few hours
Method used
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[0025] See figure 1 and figure 2 , the present invention is a double saw blade device, including a first saw blade 1, a second saw blade 2, a driving device 4 and a safety system 3.
[0026] The first saw blade 1 rotates in a first direction around a rotation axis r, and includes a first blade 11 and a first cutting element 12 disposed on the outer edge of the first blade 11 .
[0027] The second saw blade 2 rotates around the rotation axis r in a second direction opposite to the first direction, and includes a second blade 21 and a second cutting element 22 disposed on the outer edge of the second blade 21 . The second saw blade 2 is close to and parallel to the first saw blade 1 , so that the first cutting element 12 and the second cutting element 22 cooperate to cut.
[0028] The driving device 4 is axially connected to the first saw blade 1 and the second saw blade 2 and provides driving, and has a driving diameter d.
[0029] The safety system 3 has a safety distance...
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Abstract
The invention discloses a double saw blade device and a method for reducing friction and collision of the double saw blade device. The double saw blade device comprises a first saw blade, a second saw blade, a driving device and a safety system. The first saw blade and the second saw blade are abutted and arranged in parallel, rotate reversely around a rotating shaft, and comprise a blade and a cutting element arranged at the outer edge of the blade respectively. The driving device is axially connected to the first saw blade and the second saw blade, provides drive and has a driving diameter.The safety system is arranged between the blades in a safe distance. The safety system also comprises a first rigidity reinforcing device and a second rigidity reinforcing device which both comprise a saw blade adapter fixedly arranged on the outside of the blade. The saw blade adapter has a preset diameter to reinforce the rigidity of the blade, and the diameter does not exceed the driving diameter so that the deformation of the blade is reduced in work and the cutting depth of the double saw blade device is not affected.
Description
technical field [0001] The invention relates to a double saw blade device, which has two saw blades that rotate counterclockwise around the same axis. The mutual friction and collision between the saw blades have a long service life and a double saw blade device and method capable of working stably and efficiently. Background technique [0002] The dual saw blade device having two saw blades counter-rotating around the same axis has advantages such as fast cutting and stable work, and has been widely used. However, the common problem of this type of double saw blade device is that during the working process, due to the high-speed rotation of itself and the force and deformation caused by the action of the object to be cut, the gap between the two saw blades, especially at the outer edge, Mutual friction and collision often occur, resulting in damage to the saw blade, and even splashing debris to injure the operator. In addition, in order to ensure that the two saw blades c...
Claims
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IPC IPC(8): B23D47/00B23D45/10
CPCB23D61/025B23D47/126B23D45/10
Inventor 王科威黄亮朱利刚
Owner HAMMER ELECTRIC POWER TOOLS