• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. A SAFETY DEVICE FOR A GRINDER WHEEL for a predominantly complex configuration, for example, a worm gear, containing primary and secondary casings and deformable elements, characterized in that. The device is equipped with a drive for forced rotation of the main casing connected by means of deformable elements with a grinding head of the machine and equipped with an alarm device of extreme positions, and the main casing is located on a rotating flange mounted on the machine head and also connected with it by means of deformable elements. 2. The device according to claim 1, characterized in that the drive of the forced rotation is made in the form of a hydraulic cylinder, on the wall of which a gear rack is made, which is engaged with the gear wheel connected by a shear pin with a trunnion mounted on the front wall of the main casing . (L
    公开号:SU1111855A1
    申请号:SU827772302
    申请日:1982-02-23
    公开日:1984-09-07
    发明作者:Борживой Пражски
    申请人:Товарны Строиренске Техники,Концерн (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to a machine tool industry, in particular, to safety devices for grinding wheels of a predominantly complex configuration, for example, worm gear, intended, for example, for grinding and toothed gear.
    A safety device for the grinding wheel is known, comprising a rigid main casing covering most of the grinding wheel and an additional casing coaxially installed inside it, both of which are connected to each other by a deformation zone, which collapses when the grinding wheel fragments strike. additional casing. (Bujga Ondřej, Rosberg Frantischek. Czechoslovak Industry, 1973, 12, p. 38-43).
    A disadvantage of the known device is that with high protection efficiency, it makes it difficult to perform some further functions, such as, for example, more frequent dressing of the grinding wheel, which occurs when grinding more complex profiles.
    The object of the invention is to provide ease of maintenance, mainly when grinding wheels of complex configuration, requiring frequent dressing, while maintaining high protection performance, including when the grinding wheel is broken.
    The problem is solved mainly due to the possibility of rotation of the main casing, providing, with minimal opening, convenient access to the straightening tools, for which the safety device containing the main and additional housings and deformable elements is actuated by force Hoio rotating the main casing connected with deformable elements with the grinding head. machine and equipped with an alarm device at the extreme points, and the main casing is located on the rotary flange mounted on machine head and associated with it also by means of deformable elements.
    The drive of forced movement of the main casing may be made in the form of a hydraulic cylinder, on which a gear rack is made, which is meshed with a gear wheel connected by a pin with a pin mounted on the front wall of the main casing.
    FIG. 1 shows the described device, axial section; in fig. 2 - rotational drive, front view, section.
    The safety device for the grinding wheel is formed by a closable
    the main casing 1, which is attached by means of the first deformable elements 2 to a rotary flange 3 mounted on a rigidly flange 4 attached to the body 5 of the grinding head. On the upper part of the main casing 1 is installed with a rotational fit on the pin of the spindle 6, which can be tilted with the aid of the adjusting element, best of all the screw.
    and thus maintain a constant optimal gap between the casing and the grinding wheel 7, the diameter of which | 0 y. decreases due to dressing and loss of material during grinding. The lower part of the safety device is formed on the lower additional casing 8 attached directly to the lower part of the body 5 of the grinding head and located simultaneously in the trajectory of the main casing 1.
    Q To provide the convenience of frequent editing of the grinding wheel 7 directly on the product pldndel, the main casing 1 is rotatably mounted.
    The drive of the forced rotation of the core casing 1 can be made in the form of a hydraulic cylinder, on the piston of which a gear rack 9 is made and meshes with the gear wheel 10 connected by means of a shear pin 11 with a trunnion 12 mounted on the front wall of the main casing 1 A pressure fluid is supplied to both end surfaces of the hydraulic piston, and the extreme positions of the piston are signaled, for example, by limit switches 13. The entire drive of the forced rotation is mounted in the support body 14, fastened using the second deformable elements 15 and 16 to the base plate 17, which is attached to the housing 5 of the grinding head.
    0 „
    The device works as follows oora30 M.
    During the grinding cycle of the machine, the rack 9 serves to turn the main casing 1 to the grinding position
    5 (corresponds to the minimum opening of the safety cover) or to the straightening position (the cover is opened to provide access to the right-hand tools. Hydraulic control and signaling, by means of limit switches 13, enable the control to be connected to the automatic cycle of the machine.
    When the grinding wheel 7 breaks, the wheels of the wheel hit the main
    2 casing 1 and the tangential component of kinematic energy causes the shear pin 11 to break and the main casing 1 rotates. As a result, the main casing 1 hits the lower SHELL 8 and blocks the path of the wreckage or at least hinders the flying wreckage of the ruptured grinding wheel 7. The energy of the wreckage the torn grinding wheel 7 is then damped due to the breakdown of the deformable elements 15 and 16, so that no part of the machine can be damaged. It is recognized by the invention on the results of the examination. The authorized Office for the invention of Czechosocial Soyuvik Soi ;; Listik Resichbliki.
    权利要求:
    Claims (2)
    [1]
    1. SAFETY
    DEVICE FOR GRINDING CIRCLE of a predominantly complex configuration, for example, a worm, containing the main and additional casings and deformable elements, characterized in that the device is equipped with a drive for forcing the main casing, connected by means of deformable elements to the grinding head of the machine and equipped with an alarm device for extreme positions, and the main casing is located on a rotary flange mounted on the headstock of the machine and connected with it also by deformable elements.
    [2]
    2. The device according to π. 1, characterized in that the drive of the forced rotation is made in the form of a hydraulic cylinder, on the piston of which a gear rack is made, which is meshed with a gear wheel connected by means of a shear pin with a pin mounted on the front wall of the main casing.
    Fig /
    111 1855
    类似技术:
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    同族专利:
    公开号 | 公开日
    HU192945B|1987-08-28|
    CS222119B1|1983-04-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2466848C2|2006-11-13|2012-11-20|Роберт Бош Гмбх|Safety device based on protective casing|
    US8454412B2|2007-11-05|2013-06-04|Robert Bosch Gmbh|Handheld power tool|
    RU2490108C2|2007-11-05|2013-08-20|Роберт Бош Гмбх|Hand-held machine|
    RU2492988C2|2007-11-27|2013-09-20|Роберт Бош Гмбх|Hand-held machine|
    RU2550443C2|2009-08-10|2015-05-10|Роберт Бош Гмбх|Process machine with protecting enclosure|
    RU2571666C2|2010-03-29|2015-12-20|Роберт Бош Гмбх|Preventer of spontaneous separation of clamp and/or working tool|
    JP5060799B2|2007-02-26|2012-10-31|株式会社ディスコ|Grinding wheel mounting method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CS172881A|CS222119B1|1981-03-10|1981-03-10|Protective cover of the grinding disc|
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