SU802597A1

SU802597A1 - Piston-type hydraulic machine

Info

Publication number: SU802597A1
Application number: SU792745256A
Authority: SU
Inventors: Михаил Владимирович Горбешко; Борис Николаевич Воротынцев; Юрий Михайлович Козлов; Юрий Николаевич Дунаев
Original assignee: Ленинградский Ордена Красного Зна-Мени Механический Институт; Предприятие П/Я A-1097; Войсковая часть 27177
Priority date: 1979-02-02
Filing date: 1979-02-02
Publication date: 1981-02-07

Description

Изобретение относится к гидромашиностроению, а именно к области проектрирования и совершенствования поршневых гидромашин, широко используемых в станкостроении, подъемнотранспортном оборудовании, судостроении и.других отраслях народного хозяйства.The invention relates to hydraulic engineering, and in particular to the field of designing and improving piston hydraulic machines, widely used in machine tools, lifting equipment, shipbuilding and other sectors of the economy.

Известна поршневая гидромашина, содержащая корпус, в котором на подшипниках установлен вал и люлька, причем корпус в зоне подшипников снабжен вибродемпфирующим устройством [1].Known piston hydraulic machine containing a housing in which a shaft and a cradle are mounted on the bearings, the housing in the area of the bearings is equipped with a vibration damping device [1].

Недостатком известной конструкции является недостаточно эффективное гашение вибрации и шума, создав аемых гидромаши ной.A disadvantage of the known design is the insufficiently effective damping of vibration and noise generated by the hydraulic machine.

Цель изобретения - повышение эффективности.The purpose of the invention is improving efficiency.

Цель достигается тем,‘что вибродемпфирующее устройство выполнено в виде сообщенных с аккумуляторной емкостью камер.The goal is achieved by the fact that the vibration damping device is made in the form of cameras connected to the battery capacity.

На фиг.1 изображена гидромашина с вибродемпфирующей камерой, соединенной с дополнительной емкостью, являющейся ее магистралью; на фиг.2 - разрез подшипникового угла гидрома- . шины, выполненной в виде отдельных яолостей, запитанных автономно.In Fig.1 shows a hydraulic machine with a vibration damping chamber connected to an additional tank, which is its main; figure 2 is a section of the bearing angle of the hydro-. tires made in the form of separate yaolosti, powered independently.

Поршневая гидромашина содержит корпус 1,. вал 2, установленный на подшипниках 3, люльку 4, установленную на подшипниках 5 в корпусе 1 пос- ³ редством втулки 6, и блок цилиндров 7 с рабочими поршнями 8. Одно кольцо каждого из подшипников 3 и 5, в данном случае наружное кольцо, снабже но соответствующими вибродемпфирую- щими камерами 9, 10 и 11. Камеры 9, 10 и 11 соединены с дополнительной аккумуляторной емкостью гидромашины, закон изменения давления в которой зависит от давления в магистралях,The piston hydraulic machine comprises a housing 1 ,. a shaft 2 mounted on bearings 3, a cradle 4, 5 mounted on bearings in the housing 1 pos- ³ redstvom sleeve 6 and the cylinder block 7 with working pistons 8. One of each of the bearing ring 3 and 5, in this case, the outer ring is provided with but with the corresponding vibration damping chambers 9, 10 and 11. The chambers 9, 10 and 11 are connected to an additional battery capacity of the hydraulic machine, the law of which changes in pressure depends on the pressure in the lines,

т.е. зависит от нагрузки гидромашины.those. depends on the load of the hydraulic machine.

Передача усилия камере 10 осуществля~ется посредством кольца 13. Камеры могут быть связаны также с автономной полостью 14 гидромашины. Такое 20 расположение и запитка дополнительной емкости необходимы, когда для увеличения демпфирующих свойств камеры внутреннюю полость заполняют газом или смесью газа с жидкостью.The force is transmitted to the chamber 10 by means of a ring 13. The chambers can also be connected to the autonomous cavity 14 of the hydraulic machine. Such an arrangement and washing of additional capacity is necessary when, in order to increase the damping properties of the chamber, the internal cavity is filled with gas or a mixture of gas and liquid.

при работе гидромашины на подшипники действуют переменные по величине и направлению составляющие внутренних сил. Распределение этих., . сил по периметру подшипника являет30 ся характерной особенностью режима работы гидромашины и вообще гидромашины в целом. Применение вибродемпфирующей камеры, выполненной в виде отдельных полостей дает возможность регулировать жесткость контакта подшипники с камерой,а это значит с кор- . пусом, в зависимости от величины ³ составляющих внутренних сил, действующих на подшипник в данном месте. Жесткость камеры регулируется с помощью давления в ней и подбора ее материала. ·Оduring operation of the hydraulic machine, the components of the internal forces that are variable in magnitude and direction act on the bearings. Distribution of these.,. forces around the perimeter of the bearing is a characteristic feature of the operating mode of the hydraulic machine and the hydraulic machine as a whole. The use of a vibration damping chamber made in the form of separate cavities makes it possible to adjust the stiffness of the contact of the bearings with the chamber, and this means with cor-. pusom, depending on the magnitude of ³ components of the internal forces acting on the bearing in this place. The stiffness of the chamber is regulated by the pressure in it and the selection of its material. ·ABOUT

Переменные составляющие внутренних сил, осевая и радиальная, действуют на подшипники вала, которые взаимодействуют с вибродемпфирующими камерами. Камера 9 частично демпфиру- (5 ет переменную радиальную составляющую внутренних сил. Осевую составляющую демпфирует посредством кольца 12 вибродемпфирующая камера 10.The variable components of the internal forces, axial and radial, act on the shaft bearings, which interact with vibration damping chambers. The chamber 9 is partially damped (5 is a variable radial component of the internal forces. The axial component is damped by means of the ring 12, the vibration damping chamber 10.

На подшипники люльки действуют переменные радиальные составляющие внутренних сил, которые частично демпфируются камерой 11.Variable radial components of internal forces act on the cradle bearings, which are partially damped by the chamber 11.

Использование изобретения позволит уменьшить вибрацию корпуса и шум, создаваемый гидромашиной.The use of the invention will reduce the vibration of the housing and the noise generated by the hydraulic machine.

Claims

The invention relates to hydraulic engineering, in particular to the field of designing and improving piston hydraulic machines, widely used in machine-tool construction, lifting and transport equipment, shipbuilding and other parts of the national economy. A piston hydraulic machine is known, comprising a housing in which a shaft and a cradle are mounted on bearings, the housing in the bearing area is removed by a vibration-damping device. A disadvantage of the known construction is the insufficiently effective damping of vibrations and noise generated by hydromachine. The purpose of the invention is to increase efficiency. The goal is achieved by the fact that the vibro-damping device is made in the form of chambers communicated with the battery capacity. Figure 1 shows a hydraulic machine with a vibration damping chamber connected to an additional tank, which is its main line; figure 2 - ra cut the bearing angle of hydro-tire, made in the form of separate cavities fed autonomously. The piston hydraulic machine comprises a housing 1, a shaft 2 mounted on bearings 3, a cradle 4 mounted on bearings 5 in housing 1 by a bush 6, and a cylinder block 7 with working pistons 8. One ring of each of bearings 3 and 5, in this case the outer ring, provided with appropriate vibration-damping chambers 9, 10 and 11. Chambers 9, 10 and 11 are connected to an additional accumulator capacity of the hydraulic machine, the law of pressure variation in which depends on the pressure in the main lines, i.e. depends on the load of the hydraulic machine. The transfer of force to the chamber 10 is effected by means of the ring 13. The chambers can also be connected to an autonomous cavity 14 of the hydraulic machine. Such an arrangement and the feeding of additional capacity are necessary when, in order to increase the damping properties of the chamber, the internal cavity is filled with gas or a mixture of gas and liquid. During the operation of the hydraulic machine, the bearings are acted upon by variable in magnitude and direction components of the internal forces. The distribution of these forces around the perimeter of the bearing is a characteristic feature of the operating mode of the hydraulic machine and, in general, of the hydraulic machine as a whole. The use of a vibration chamber in the form of separate cavities makes it possible to adjust the rigidity of the contact between the bearings and the chamber, which means with the housing, depending on the magnitude of the internal forces acting on the bearing in a given place. The stiffness of the chamber is regulated by the pressure in it and the selection of its material. The variable components of the internal forces, axially and radially, act on the shaft bearings, which interact with the vibration-damping chambers. Chamber 9 partially damps the variable radial component of the internal forces. The axial component damps through the ring 12 the vibration damping chamber 10. The cradle bearings are acted upon by variable radial components of the internal forces, which are partially damped by the chamber 11. Using the invention will reduce the vibration of the housing and the noise generated by the hydromachine. The invention of the piston hydraulic machine, comprising a housing in which a shaft and a cradle are mounted on bearings, the housing in the bearing area being provided with a vibration damping device. About this, and with the aim of increasing efficiency, the vibration damping device is in the form of communicated with battery capacity cameras. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2496822/06, 1977.

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