​The general structure of the Underground jambo

The boring Underground jambo refers to the Underground jambo used in underground mining roadway, railway and highway tunnel, hydraulic culvert and other underground excavation works. It can also be used for drilling bolt holes, filling or chamber, and pillar mining holes. The diameter of the borehole is 25-64mm, the depth of the borehole is 1-5.5m, and 2.5-4m is usually used. Suitable for roadway section of 3.2-150m2. The selection of the tunneling Underground jambo is mainly based on the roadway section and tunneling speed, and at the same time, factors such as the turning radius and supporting mode of the roadway should be considered. The following is an introduction to Underground jambo.

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The working process of the Underground jambo

The general structure of the Underground jambo

Underground jambo type

The working process of the Underground jambo

The Underground jambos are supported on the walking chassis by the drill arm. After the Underground jambo moves to the working face, the Underground jambo body is supported firmly by a jack. The swing drill arm and propeller make the drill tool aim at the hole position and the hole direction. The bottom of the hole is purged with pressurized water or gas through the center hole of the Underground jambo, and the rock slag is discharged out of the hole through the gap between the Underground jambo and the hole wall. When drilling deep holes. After each Underground jambo, the clamping device clamps the Underground jambo in the hole, and the rock machine reverses. When the drill tail is unloaded from the Underground jambo, it returns, and then connects the second Underground jambo with the hand or the rod changer, and continues to drill. After the drilling is completed, remove the Underground jambo one by one and turn the drill arm to move the drill machine and drill tool to the next hole.

The general structure of the Underground jambo

Taking CTC-214 Underground jambo as an example, It has two drill arms and is more productive than a stand-alone mining drill car. It has the advantages of fast drilling speed and less trouble due to the use of YGZ-90 type rock drill with external rotation. The swing range of the drill arm is large, and it can drill upward parallel holes and fan-shaped holes with a width of 3.5m. The Underground jambo can be operated in the chamber (or roadway) with a section of 3X 3m ', with a working width of 5m. There are two pendulum drill arms 5 in the middle of the Underground jambo. The drill arms are mounted in the box landing gear 4. Each landing gear can independently take off and land the drill arms in the range of 0°~90°. Bracket 6 and propeller 3 are mounted at the front end of the drill arm. The thruster adopts an air motor - lead screw propulsion, equipped with a hydraulic drill holder and elastic center. The rig is simple in structure and reliable in operation. The Underground jambo is also equipped with a gun hole swing Angle locator, with a display accuracy of 1°, the gun hole orientation is convenient and accurate.

Underground jambo type

Underground jambos can be classified according to four characteristics:

(1) According to the use, it is divided into open pit Underground jambo, underground mining Underground jambo, and tunneling Underground jambo. And special Underground jambo.

(2) According to power, it can be divided into three types: pneumatic, electric, and diesel drive;

(3) According to the type of walking chassis, it can be divided into rail-wheel type, tire type, and crawler type;

(4) According to the number of drilling machines, it can be divided into single machines, double machines, and multiple machines

It is the responsibility of each manufacturer to produce an Underground jambo that meets the standards Hambition Drivetrain Components & Parts Co., Ltd. conducts many tests on Underground jambo for connection before they leave the factory, and the quality qualification rate is guaranteed. If you are in the Underground jambo business, you can consider our cost-effective products.