Pressing-in device of crankshaft belt pulley
A crankshaft pulley and press-in device technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of high manufacturing cost, inconvenient maintenance, and cumbersome operation, so as to save equipment investment, easy operation, and improve assembly efficiency effect
Active Publication Date: 2015-11-11
GUANGXI YUCHAI MASCH CO LTD
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Problems solved by technology
At present, such devices generally use cross-drive gears to drive the pull rods, and use couplings to connect the pull rods and piston rods. There are many parts, high manufacturing costs, cumbersome operation, and inconvenient maintenance.
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[0024] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0025] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.
[0026] Such as figure 1 and figure 2 As shown, the specific structure of the crankshaft pulley press-in device according to the specific embodiment of the present invention includes: screw rod 1, magnetic lock ring 2, pull rod 3, pressure plate 4, oil cylinder 5, bearing seat 6 and hand wheel 7. Wherein, the handwheel 7 of the pressing device of the crankshaft pulley drives the screw rod 1 to rotate, so that the external...
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The invention discloses a pressing-in device of a crankshaft belt pulley. The pressing-in device comprises an oil cylinder, a pull rod, a hand wheel, a screw and a bearing disc, wherein the oil cylinder is provided with a hollow piston rod, the pull rod can penetrate into the hollow piston rod in a coaxial and relative rotating mode, the hand wheel is fixed to one end of the pull rod, one end of the screw is connected with the other end of the pull rod, the other end of the screw is provided with an outer thread which is matched with a small-head screw hole of a crankshaft in a screwed mode, and the bearing disc is installed on the periphery of the hollow piston rod in a sleeving mode and is tightly fixed with an end cover of the oil cylinder. According to the pressing-in device of the crankshaft belt pulley, the hollow piston rod is adopted so that coaxial and relative rotation of the screw and the piston rod can be achieved, the pull rod can advance, retreat and rotate, and a cross drive device and a coupler are omitted; a magnetic locking ring is adopted so that fast screwing and loosening prevention between the screw and the pull rod can be achieved, manufacturing is easy, operation is easy and convenient, maintenance is convenient, equipment investment can be saved, and the assembly efficiency can be improved.
Description
technical field [0001] The invention relates to the field of engine assembly, in particular to a pressing-in device for a crankshaft pulley. Background technique [0002] The pulley press-in device is a common device for engine assembly. Especially when the belt pulley and the crankshaft journal are assembled with interference, in order to prevent the deformation and damage of other parts caused by vigorous knocking on the assembly, a hydraulic device is usually used for press fitting. Therefore, the pulley pressing device is widely used. At present, such devices generally use cross-drive gears to drive the pull rods, and use couplings to connect the pull rods and piston rods. There are many parts, high manufacturing costs, cumbersome operation, and inconvenient maintenance. [0003] The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an acknowledgment or ...
Claims
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IPC IPC(8): B23P19/027
CPCB23P19/027
Inventor 吴培柱杨先恺
Owner GUANGXI YUCHAI MASCH CO LTD