Steel rail bottom grinding machine
A grinding machine and rail technology, which is applied to machine tools, grinding machines, grinding/polishing equipment, etc., which are suitable for grinding the edge of workpieces. problems, to achieve the effect of improving stability and accuracy, stable and reliable grinding quality, and reducing grinding interference
Inactive Publication Date: 2014-04-23
LANZHOU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
Since the main feeding of the grinding (the front and rear movement of the grinding wheel) is manual, the uniformity of the feeding speed cannot be guaranteed, and its front and rear feeding strokes are short. Grinding martensite white layer and loss of shape will affect the service life of the guide rail; in addition, the up and down feed adopts bevel gear transmission, the transmission ratio is small, the stability is poor, and there is no clear scale indication, the feed control is not accurate, Affect the grinding accuracy; and the equipment also lacks the necessary grinding protection and dust removal device
Method used
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Embodiment Construction
[0008] Such as figure 1 , figure 2 , image 3 As shown, the rail bottom grinding machine is composed of a movable trolley, a main body of the grinding machine and an electrical operation box. The main body 17 of the grinder is installed on the movable dolly 1, which can be promoted to align the welding seam position during work. Two horizontal cylindrical guide rails 14 are horizontally fixed on the grinding machine main body 17, and the rear sleeve 15 of the feed shaft is arranged on the horizontal cylindrical guide rail. Spindle feed lower sleeve 4, worm gear 5, hand-operated worm 11, grinding wheel 7, grinding wheel bushing 8, wherein, grinding machine main shaft 12 is directly connected with motor 3, and is connected with grinding wheel 7 through grinding wheel bushing 8; front and rear feeding cylinder 13 is fixed on the grinding machine main body 17, and its piston rod is connected with the feed shaft rear sleeve 15 with a round nut. When the front and rear feed cyli...
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The invention relates to a steel rail bottom grinding machine. A grinding machine main body (17) is arranged on a trolley (1) and is horizontally fixedly provided with two horizontal cylindrical guide rails (14); a moving part is fixed on each horizontal cylindrical guide rail (14) through a feeding shaft rear sleeve (15); a grinding machine spindle (12) is directly connected with a motor (3) and is connected with a grinding wheel (7) through a grinding wheel bushing (8); a longitudinal feeding cylinder (13) is fixed on the grinding machine main body (17); a piston rod of the longitudinal feeding cylinder (13) is connected with the feeding shaft rear sleeve (15) through a round nut; a spindle sleeve (10) is matched with a worm wheel (5); the worm wheel (5) is fixed on the feeding shaft rear sleeve (15) through a spindle feeding lower sleeve (4) and a spindle feeding upper sleeve (6); a hand worm (11) is fixed on the grinding machine main body (17); four jacking cylinders (2) are arranged between the grinding machine main body (17) and the trolley (1); and a support plate (9) is taken as an adjustable template and tightly attached to the bottom of a steel rail when the cylinders jack.
Description
technical field [0001] The invention relates to a rail bottom processing device, which is specially used for grinding welded nodules of seamless rails. Background technique [0002] Modern trains have increasingly strict requirements on speed, stability and ride comfort. The quality of the rails directly affects the safety and stability of driving. Therefore, a large number of long-distance seamless steel rails are used in the current railway construction. The so-called seamless rails are welded into longer rails with a number of standard length rails, and then transported to the site for on-site welding to become longer seamless lines. Since welding nodules will be left after welding, they must be ground before they can be used. Rail grinding technology is more and more used in high-speed rail, heavy rail and urban rail transit, and the market potential is huge. Improper sanding can cause appearance imperfections and quality defects. [0003] In recent years, ...
Claims
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IPC IPC(8): B24B9/04
Inventor 蒋钧钧李南孟志常李建华席平
Owner LANZHOU UNIVERSITY OF TECHNOLOGY