Cam control system

A technology of concrete sprayer and cam control, applied in the field of control system, can solve the problems of difficult sealing of oil circuit, unreliable action of oil cylinder, etc., and achieve the effect of precise action

Inactive Publication Date: 2012-01-11
BEIJING CHINA COAL MINE ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the oil circuit of the control system used in the existing wet spraying machine is not easy to be sealed, resulting in unreliable operation of the oil cylinder, the present invention provides a cam control system, which has the characteristics of no need to seal the oil circuit and reliable operation of the oil cylinder

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with accompanying drawing:

[0012] Depend on figure 1 and figure 2 As shown, a cam control system includes a gearbox 8, a cam seat 2, the input shaft of the gearbox 8 is connected with the sprocket 7, the output shaft is connected with the shaft 9, and the cams (3, 4, 5, 6) are arranged in sequence on the shaft 9 ), the cams (3, 4, 5, 6) are connected with the shaft 9 through the key 10, and each cam is processed with a keyway according to a preset angle, and then installed on the shaft 9. There are several valves on the cam seat 2 corresponding to the cams (3, 4, 5, 6), each valve is connected to a different oil cylinder, and the cams (3, 4, 5, 6) are processed into different shapes according to the pre-calculation , through the different rotation angles to control the switch of each valve, thereby controlling the expansion and contraction of the oil cylinder, and further controlling the various a...

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Abstract

The invention relates to a cam control system and mainly solves the problem that the action of an oil cylinder is unreliable due to hard seal of a control system oil line used by a conventional wet spraying machine. The cam control system is characterized in that: cams (3), (4), (5) and (6) are arranged on a shaft (9); valves (11), (12), (13), (14), (15) and (16) arranged on a cam base (2) correspond to the cams, wherein the valve (11) corresponds to the cam (3), the valve (12) corresponds to the cam (4), the valves (13) and (14) correspond to the cam (5), and the valves (15) and (16) correspond to the cam (6); and meanwhile, the valves (11), (12), (13), (14), (15) and (16) are connected with corresponding oil cylinders respectively; the valve (11) is directly connected with an oil tank, the valve (12) is connected with oil cylinders (17) and (18), and the valves (13), (14), (15) and (16) are connected with oil cylinders (19), (20), (21) and (22) respectively. The cam control system has the characteristics of no need of sealed oil line and reliable action of the oil cylinders.

Description

Technical field: [0001] The invention relates to a control system, in particular to a cam control system used in a wet concrete sprayer. Background technique: [0002] The wet concrete spraying machine (wet spraying machine for short) used in mine roadway construction needs to control multiple actions such as exhaust opening, air intake, clutch, etc., and to ensure the continuity of the wet spraying machine. Both are two sets, so multiple cylinders need to be controlled. In the existing wet spraying machine, a plurality of oil passage holes are opened on the hollow shaft in the controller, and different oil passage holes are connected with different oil cylinders by rotating the hollow shaft, so as to finally control the action of each oil cylinder. Its disadvantages are: it is not easy to ensure the sealing between each oil hole and the oil cylinder and between the hollow shaft and the shaft sleeve. If the oil pressure is low, the oil cylinder will easily break the oil, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10
Inventor 邱天德周兴旺邓昀赵宏伟李耀武赵文生黄亮高韩光利郑敏
Owner BEIJING CHINA COAL MINE ENG CO LTD
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