Adaptive hard-rock impact rotary crushing system

A rotary crushing and self-adaptive technology, which is applied in testing machinery, earthwork drilling, cutting machinery, etc., can solve problems such as long auxiliary excavation time, large amount of pick damage, and large excavation tasks, and achieves low cost and high maintenance. The effect of small amount and reducing wear

Inactive Publication Date: 2012-08-15
LIAONING TECHNICAL UNIVERSITY
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Problems solved by technology

[0002] At present, coal is still the main energy source in our country. In coal mining, the excavation task of roadway is large and the excavation time is long. The mining speed of fully mechanized mining equipment directly depends on the speed of excavation. The hardness of the surface continues to increase. During the mining process of traditional roadheaders, the main shaft is often broken, the picks are damaged, and the auxiliary tunneling time is long, which has seriously affected the production of coal mines.

Method used

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  • Adaptive hard-rock impact rotary crushing system
  • Adaptive hard-rock impact rotary crushing system

Examples

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Embodiment Construction

[0010] Examples, see attached figure 1 , 2 , the right end and the lower end of the hydraulic motor 12 of the self-adaptive hard rock impact rotary crushing system are respectively connected with a hydraulic control valve 15 through a hydraulic pipeline 16, and the lower part of the hydraulic control valve 15 is connected with a hydraulic control module 14 through a hydraulic pipeline 16, and the hydraulic control A hydraulic pump 13 is connected with a hydraulic pipeline 16 below the module 14 . The left end of hydraulic motor 12 is provided with a propulsion hydraulic master cylinder 11, advances hydraulic master cylinder 11 left end sets a rotary knife rest 1, is connected with support pin 18 between propulsion hydraulic master cylinder 11 and rotary knife rest 1, and support pin 18 two The ends are fixed with locking pins 17 respectively. Rotary knife rest 1 front end face is provided with hob support surface 1-1, center hole 22, is evenly distributed on the hob support ...

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Abstract

The invention belongs to coal mine tunneling and crushing machinery, in particular to an adaptive hard-rock impact rotary crushing system. The system comprises a hydraulic pump (13), a hydraulic control module (14), a hydraulic control valve (15), a hydraulic pipeline (16), a hydraulic motor (12) and a thrust hydraulic main cylinder (11); a rotating knife rest (1) is sleeved at the left end of the thrust hydraulic main cylinder (11); the thrust hydraulic main cylinder (11) and the rotating knife rest (1) are connected through a supporting pin (18); two ends of the supporting pin (18) are fixedly limited by a locking pin (17) respectively; a hob head supporting surface (1-1) and a central hole are formed on a front end face of the rotating knife rest (1); and a plurality of angle adjustable disc-shaped hobs (23) are uniformly and fixedly arranged on the hob head supporting surface (1-1) and are supported by a hob supporting bearing (21). The adaptive hard-rock impact rotary crushing system has a simple structure, light weight, low failure rate and low maintenance, and is low in cost, easy to repair and low in maintenance expense.

Description

technical field [0001] The invention belongs to coal mine excavation crushing machinery, in particular to an adaptive hard rock impact rotary crushing system. Background technique [0002] At present, coal is still the main energy source in our country. In coal mining, the excavation task of roadway is large and the excavation time is long. The mining speed of fully mechanized mining equipment directly depends on the speed of excavation. The hardness of the surface continues to increase. During the mining process of traditional roadheaders, the main shaft is often broken, the picks are damaged, and the auxiliary tunneling time is long, which has seriously affected the production of coal mines. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned technical deficiencies, and provide an adaptive hard rock impact rotary crushing system with simple structure, safety and reliability, and good crushing effect. [0004] The tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C27/20E21C27/22E21C27/28E21C39/00
Inventor 张强毛君安亚君
Owner LIAONING TECHNICAL UNIVERSITY
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