A double wheel groove milling machine transmission box

Abstract

The invention discloses a transmission box of a double-wheel slot milling machine. The transmission box comprises a transmission box body, a driving chain wheel mounted in the transmission box body, a power mechanism for driving the driving chain wheel to rotate, milling wheels mounted at the lower part of the transmission box body, a driven chain wheel which is connected with the driving chain wheel through a chain, a supporting seat which is fixed between the transmission box body and the milling wheels, and milling wheel speed reducers mounted in the milling wheels, wherein the power mechanism is used for driving the driving chain wheel to rotate; the rotating driving chain wheel can drive the driven chain wheel to rotate through the chain, and the rotating driven chain wheel can drive the milling wheel speed reducers to work to output torque to drive the milling wheels to rotate. According to the transmission box of the double-wheel slot milling machine, large torque can be transmitted; the supporting seat is thin, so that the problem that the transmission box body is arranged across a wall due to high thickness of the supporting seat in the construction can be solved; the load can be radially transferred and distributed; the sealing performance is stable and reliable; the vibration absorbing performance is high; the performance cost is high; in addition, the maintenance is convenient. The transmission box can be widely popularized and applied.

Description

technical field [0001] The invention relates to a transmission box of a double-wheel groove milling machine, which is used for the groove-forming construction of an underground continuous wall, and belongs to the technical field of double-wheel groove milling machines. Background technique [0002] At present, the double-wheel milling machine used for underground diaphragm wall grooving construction transmits the power of the upper car to the milling wheel through the transmission box, drives the milling wheel to rotate, and achieves the purpose of milling and breaking the formation. The double-wheel milling machine is suitable for a wide range of formations, especially in hard rock formations, which can highlight its construction efficiency and economy. During the working process, the transmission box not only transmits the power of milling rock formation; but also plays a role of supporting the milling wheel, and bears large radial force and impact vibration. Therefore, t...

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Problems solved by technology

[0004] 2. The thickness of the supporting seat for supporting the milling wheel should be as small as possible when the strength is satisfied. Because the thickness is too large, the blind area that cannot be milled in the middle of the milling wheels on both sides will be relatively large, which will cause the phenomenon of the transmission box "riding the wall", resulting in the failure of construction ;

In the actual use process, there are the following problems: first, the torque transmitted to the milling wheel by the speed change transmission mechanism is equal to the torque of the large sprocket, but due to the limited thickness of the support seat, the size of the chain used is limited, so the chain Less torque is experienced, resulting in less working torque ultimately transmitted to the milling wheel

If you choose a large-sized chain, the thickness of the support seat will be very large, and the phenomenon of "riding on the wall" will occur and construction will not be possible

Second, the milling cutter wheel and the rotating wheel, and the rotating wheel and the large sprocket are all rigidly connected in the variable speed transmission mechanism. During the construction process, the radial force and impact load on the milling cutter wheel are all transmitted to the large sprocket through the rotating wheel , which greatly reduces the reliability and life of the transmission parts and seals in the entire transmission system

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