SU875137A1

SU875137A1 - Apparatus for relieving mechanism

Info

Publication number: SU875137A1
Application number: SU802885661A
Authority: SU
Inventors: Игорь Константинович Георгиевский
Original assignee: Украинский Полиграфический Институт Им.Ив.Федорова
Priority date: 1980-02-20
Filing date: 1980-02-20
Publication date: 1981-10-23

Description

Изобретение относится к машиностроению, а именно к устройствам с инерционными аккумуляторами энергии (нагружа— телями) j разгружающими звенья^ передаточных и исполнительных механизмов от сил инерции массы реверсивно вращающегося ведомого звена, и предназначено для использования в скоростных производственных машинах-автоматах периодического действия. . ,The invention relates to mechanical engineering, in particular to devices with inertial energy accumulators (loaders) j unloading links ^ of transmission and actuating mechanisms from the inertial forces of the mass of a reversibly rotating driven link, and is intended for use in high-speed production automatic machines of periodic action. . ,

Известно устройство с инерциои- ¹ным нагружателем для разгрузки механизма, содержащее кулачок, установленный на валу исполнительного механизма, взаимодействующий с толкателем, связанным с инерционным те- ¹лом [1 УA device with an inertial ¹ loader for unloading the mechanism, containing a cam mounted on the shaft of the actuator, interacting with a pusher associated with an inertial body ¹ [1 U

Недостатком такого устройства является необходимость установки рядом с валом исполнительного механизма специального вала устройства для крепления толкателя с инерционным- телом.The disadvantage of this device is the need to install near the shaft of the actuator a special shaft of the device for mounting the pusher with an inertial body.

Наиболее близким по технической сущности к предлагаемому является уст2 ройство для разгрузки механизма, со- . держащее корпус, расположенные „в нем вал, кулачок, установленный на валу, инерционный нагружатель и соединенные с последним ролики [2 J.The closest in technical essence to the proposed one is a device for unloading the mechanism, co. holding case, shaft located in it, cam mounted on the shaft, inertial loading device and rollers connected to the latter [2 J.

Устройство содержит также кулачки закрепленные на главном валу испол— ' нительного механизма, взаимодействующие с, толкателями_г закрепленными на специально установленном валу устройства и приводящими в движение' инер.ционный аккумулятор энергии(инерционный нагружатель). На валу разгружаю- ' щего устройства между толкателями устройства й его инерционным нагружателем может быть установлена, муфта для отключения в случае необходимости инерционного нагружателя.The apparatus also comprises a cam mounted on the main shaft ispol- 'tional mechanism interacting with, attached to pushers _g specially prescribed device and the shaft driving the' iner.tsionny energy accumulator (inertial nagruzhatel). On the shaft of the unloading device between the pushers of the device and its inertial loader, a clutch can be installed to disconnect the inertial loader if necessary.

Недостатками известного устройства являются его большие габариты и сложность конструкции, обусловленные установкой специального.вала разгружающего устройства.The disadvantages of the known device are its large dimensions and design complexity due to the installation of a special shaft of the unloading device.

8 75.J8 75.J

Цель изобретения - уменьшение га-, баритов устройства.The purpose of the invention is the reduction of ga, barite of the device.

Указанная цель достигается тем, что в известном устройстве для разгрузки механизма, содержащем корпус, рас- ; положенные в нем. вал, инерционный нагружатель и соединенные с последним ролики, в корпусе установлен жестко связанный с ним двухпрофильный кулачок, инерционный нагружатель состоит ю из двух частей, соединенных между собой пружинами и присоединяемых посредством кронштейнов и жестко связанных с ними стоек к вращающимся звеньям исполнительного механизма, а ролики 15 расположены между частями нагружателя и взаимодействуют с двухпрофильным кулачком.This goal is achieved by the fact that in a known device for unloading a mechanism containing a housing, ra-; laid in it. the shaft, the inertial loader and the rollers connected to the last one, a two-profile cam rigidly connected to it is installed in the housing, the inertial loader consists of two parts interconnected by springs and connected by brackets and rigidly connected racks to the rotating links of the actuator, and the rollers 15 are located between the parts of the loader and interact with a two-profile cam.

На фиг. 1 изображено устройство, общий вид; на фиг. 2 - разрез А-А ₂о на фиг.1.In FIG. 1 shows a device, a General view; in FIG. 2 - section AA ₂ about in figure 1.

Устройство содержит корпус, 1, расположенные в нем вал 2,-инерционный нагружатель и соединенные с последним ролики 3. В корпусе 1 установлен ₂₅жестко связанный с ним двухпрофильный кулачок 4. Инерционный нагружатель состоит из двух частей 5 и 6,. соединенных между собой пружинами 7 и присоединяемых посредством крон- ₃θ штейнов 8 и жестко связанных с ними стоек 9 к вращающимся звеньям исполнительного механизма, например к кулачку 10, закрепленному на валу 2. Ролики 3 расположены между частями и 6 нагружателя и взаимодействуют ³⁵с двухпрофильным кулачком 4.The apparatus comprises a housing 1 disposed therein shaft 2 -inertsionny nagruzhatel and connected with the latter rollers 3. The housing 1 is ₂₅ rigidly associated Two-profile cam 4. The inertial nagruzhatel consists of two parts 5 and 6 ,. interconnected by springs 7 and connected via crowns ₃ θ of matte 8 and struts 9 rigidly connected to them to rotating links of the actuator, for example, to cam 10 mounted on shaft 2. Rollers 3 are located between parts and 6 of the loader and interact ³⁵ with a two-profile cam 4.

Устройство работает следующим образом.The device operates as follows.

При равномерном вращении в корпусе 1 вала 2 и кулачка 10 исполнительного ⁴⁰механизма через кронштейны 8 и стойки 9 вращательное движение сообщается обеим частям 5 и 6 инерционного нагружателя, Обкатываясь по двухпрофильному кулачку 4, ролики 3 сообщают ⁴⁵ двумя частям инерционного нагружателя 5 и 6 поступательное перемещение вдоль стоек 9. При этом изменяется момент инерции инерционного нагружателя, а следовательно, изменяется 50 и момент от сил инерции;.нагружателя, действующий на исполнительный мехаWith uniform rotation in the housing 1 of the shaft 2 and the cam 10 of the actuator ⁴⁰ through the brackets 8 and racks 9, the rotational movement is communicated to both parts 5 and 6 of the inertial loader. When rolling around the two-profile cam 4, the rollers 3 communicate ^{45 to the} two parts of the inertial loader 5 and 6 translational movement along the struts 9. In this case, the moment of inertia of the inertial loader changes, and consequently, 50 and the moment of the inertia forces change; the loader acting on the actuator

4 низм. Профили кулачка 4 рассчитываются таким образом,^ чтобы нагружающий момент от сил.инерции устройства был в любой фазе цикла равен по величине и направлен противоположно моменту от сил, действующих на исполнительный механизм. Усилия пружины 7 регулируются с помощью винтов 11 из условия.неотрыва роликов 3 от двухпрофильного кулачка 4 при работе разгружающего устройства.4 low. The profiles of the cam 4 are calculated in such a way that the loading moment from the forces of inertia of the device in any phase of the cycle is equal in magnitude and directed opposite to the moment from the forces acting on the actuator. The efforts of the spring 7 are regulated using screws 11 from the condition of non-separation of the rollers 3 from the two-profile cam 4 during operation of the unloading device.

' Использование инерционного нагружателя в противоположность другим видам нагружателей уменьшает габариты, упрощает конструкцию, а также дает возможность разгружающему устройству сохранить расчетный уровень разгрузки звеньев механизмов независимо от рабочих скоростей и скоростных режимов работы машины без какой-либо подналадки системы.'The use of an inertial loader as opposed to other types of loaders reduces the dimensions, simplifies the design, and also enables the unloading device to maintain the estimated level of unloading of the links of the mechanisms, regardless of the operating speeds and high-speed modes of the machine without any adjustment of the system.

Claims

The invention relates to mechanical engineering, and HMeHHO to devices with inertial energy accumulators (loading) J unloading links of transmission and actuating mechanisms from the inertia mass of the reverse rotating slave link, and is intended for use in continuous production automatic machines of periodic action. It is known a device with an inertia loader for unloading a mechanism, comprising a cam mounted on an actuator shaft, interacting with a pusher associated with an inertial body 3. A disadvantage of such a device is the need to install a special shaft device for an actuator laziness pusher with inertia-body. The closest in technical essence to the proposed is a device for unloading mechanism, co. holding body, located in it a shaft, a cam mounted on the shaft, inertial loader and rollers 2 J connected to the latter. The device also contains cams fixed on the main shaft of the actuator, interacting with the pushers fixed on the specially mounted shaft of the device and driving an inertial energy accumulator (inertial loader. On the shaft of the unloading device between the device pusher and the inertial arm it can be installed, the coupling for In the case of a need for an inertial load, the disadvantages of the known device are its large size and complexity of construction, due to the installation of a special shaft of the unloading device. 3 The purpose of the invention is to reduce the size of the device. mechanism, comprising a housing, a shaft located in it, inertial on the truck and connected with the last rollers, a two-profile cam rigidly connected to it installed in the housing, inertial nagruzhatel consists of two parts connected with the fight between the springs and connected by a proxy brackets rigidly coupled with them GOVERNMENTAL .stoek rotating units to the actuator, and the rollers are located between the parts and interact with nagruzhatel dvuhprofil nym cam. FIG. shows the device, a general view; in fig. 2 shows a section A-A in FIG. The device comprises a housing, 1, shaft 2 located therein, an inertia loader and roshkas 3 connected to the latter. In housing 1 a two-profile cam 4 rigidly connected to it 4 is installed. The inertia loader consists of two parts 5 and 6 interconnected by springs 7 and the legs 9 attached by means of the brackets 8 and rigidly connected with them to the rotating links of the actuator, for example, the cam 10 mounted on the shaft 2. The rollers 3 are located between parts 5 and 6 of the loader and interact with the two-profile cam 4. The device works as follows. With a uniform rotation into the housing 1 of the shaft 2 and the cam 10 of the actuator mechanism through the brackets 8 and the pillars 9, the rotational motion is coupled to both parts 5 and 6 of the inertia load. Rolling around the two-profile cam 4, the rollers 3 inform the two parts of the inertia loader 5 and 6 in translational movement along the uprights 9. This changes the inertia moment of the inertia loader, and therefore, the moment from inertia forces also changes: executive mecha7 4 base. The profiles of the cam 4 are calculated in such a way that the loading moment from the force of inertia of the device in any phase of the cycle is equal in magnitude and opposite to the moment from the forces acting on the actuator. The forces of the spring 7 are adjusted with screws 11 due to the condition that the rollers 3 are not separated from the two-profile cam 4 when the unloading device is in operation. The use of an inertial loading unit, in contrast to other types of loading devices, reduces overall dimensions, simplifies the design, and also enables the unloading device to maintain the calculated level of unloading of the mechanism links, regardless of operating speeds and high-speed operation modes of the machine, without any adjustment of the system. Claims Device dp unloading mechanism, comprising a housing, a shaft located therein, a cam mounted on the shaft, an inertia loader and connecting rollers with it, characterized in that, in order to reduce the dimensions, the cam is made two-profile and rigidly connected to the housing an inertia loader consists of two parts interconnected by springs and attached by means of brackets and rigidly connected with it to the rods of the actuator, and the rollers are located between the parts agruzhatel and interact with Two-profile cam. Sources of information taken into account when examining 1. USSR author's certificate No. 518590, cl. F 16 H 21/00, 1973.

2. Georgievsky I.K. Balancing the inertial loadings of performers of 1x mechanisms in multi-speed production machines of periodic action. Theory of mechanisms and machines. Issue 20, Kharkiv, 1976, p. 75 (prototype).

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