RU76687U1 - FLOW DIVIDER SUMMATOR - Google Patents

Abstract

The utility model relates to hydraulic engineering and can be used in a volumetric hydraulic drive of machines to synchronize the movement of executive bodies.

The problem solved by the utility model is to expand the functionality of the flow divider-adder.

The splitter-flow adder contains a rotor mounted along the generatrix surface of the stator sliding bearing and has the possibility of rotation, equipped with a cavity connected to the supply line of the flow divider-adder and periodically with consumer connection channels in the sliding bearing and the stator of the flow divider-adder, the rotor is installed on the outer forming surface of the stator sliding bearing, and its cavity is made in the form of at least one longitudinal groove on the inner forming surface. Consumer connection channels in the stator sliding bearing can be made in the form of sector grooves. The sector grooves in the stator sliding bearing are offset from each other along the axis of the flow divider-adder.

The splitter-flow adder can be installed in any rational, from the point of view of layout decisions, location of the transmission with power take-off to the rotor drive from an external energy source.

2 s.p. f-ly, 17 ill.

Description

The utility model relates to hydraulic engineering and can be used in a volumetric hydraulic drive of machines to synchronize the movement of executive bodies.

Known gear flow divider, comprising a housing, gears mounted on shafts mounted in the bearings of the housing, forming cavities, low pressure associated with the hydraulic system tank through a channel in the housing, and high, associated with consumer pressure lines [1].

The well-known gear flow divider provides operation in the volumetric flow divider mode, realizing the possibility of use in multi-motor drives with synchronous movement of the working bodies.

A disadvantage of the known gear flow divider is limited functionality and low reliability. Limited functionality is due to the fact that the well-known gear flow divider can work with only two, and no more, consumers. Low reliability is due to the fact that in the proposed structural scheme, the low and high pressure cavities are connected by channels in the gears. This will reduce the volumetric efficiency of the hydraulic machine and hydraulic power.

Known divider-flow adder containing a rotor mounted on the forming surface of the stator sliding bearing and having the possibility of rotation, equipped with a cavity associated with the supply line of the flow divider and periodically with consumer channels in the sliding bearing and stator of the flow divider [2].

The well-known divider-flow adder ensures reliable operation in the mode of dividing and summing the flow of the working fluid with the circuits of several consumers by periodically connecting the circuit of each consumer to the high pressure cavity.

The disadvantage of the flow divider-adder is its limited functionality. This is because the splitter-flow adder must be installed on the pump or drive flange, which does not allow it to be installed in a rational, from the point of view of layout decisions, location of the machine.

The problem solved by the utility model is to expand the functionality of the flow divider-adder. The technical result from the implementation of the task will be the possibility of dividing the flow of the working fluid of any hydraulic pump without changing its structural design. The rotor can be driven from an external source of energy without coordination with the flanges of the pump or drive. The splitter-flow adder can be installed in any rational, from the point of view of layout decisions, location of the transmission with power take-off to the rotor drive from an external energy source.

The solution to this problem is achieved by the fact that the flow divider-adder contains a rotor mounted along the generatrix of the stator sliding bearing and rotatable, equipped with a cavity connected to the supply line of the flow divider-adder and periodically with consumer connection channels in the sliding bearing and the divider stator flow adder. The rotor is installed on the outer forming surface of the stator sliding bearing, and its cavity is made in the form of at least one longitudinal groove on the inner forming surface. Consumer connection channels in the stator sliding bearing can be made in the form of sector grooves. Sector grooves in the stator sliding bearing can be offset relative to each other along the axis of the flow divider-adder.

New in the claimed technical solution is that the rotor is installed on the outer forming surface of the stator sliding bearing, and its cavity is made in the form of at least one longitudinal

groove on the inner forming surface. Consumer connection channels in the stator sliding bearing can be made in the form of sector grooves. Sector grooves in the stator sliding bearing can be offset relative to each other along the axis of the flow divider-adder.

The utility model is illustrated by the following drawings.

Figure 1 shows a longitudinal section of a divider-adder flow with the first embodiment and a small degree of discretization of the flow of the working fluid;

figure 2 is a section aa in figure 1;

figure 3 is a section bB in figure 1;

figure 4 is a section bb in figure 1;

figure 5 - section GG in figure 1;

figure 6 is a longitudinal section of a divider-adder flow with the first embodiment and a high degree of discretization of the flow of the working fluid;

Fig.7 is a section DD in Fig.6;

on Fig - section EE in Fig.6;

figure 9 is a longitudinal section of a flow divider-adder with a second embodiment and a small degree of discretization of the flow of the working fluid;

figure 10 is a section FJ in figure 9;

figure 11 is a section ZZ in figure 9;

on Fig - section II in Fig.9;

in Fig.13 is a section KK in Fig.9;

on Fig - section LL in Fig.9;

on Fig is a longitudinal section of a divider-adder flow with a second embodiment and a high degree of discretization of the flow of the working fluid;

on Fig - section MM in Fig;

on Fig - section HH in Fig.15.

The splitter-flow adder (see FIGS. 1, 6, 9, 15) contains a rotor 1 mounted on the outer forming surface of the sliding bearing 2 of the stator 3, made in the form of an axis. The stator 3 is equipped with a platform 4 (see Fig. 14) for installation in any convenient place of the machine. The rotor 1 of the flow divider-combiner is equipped with a pulley 5 for driving it by a belt drive (see Figs. 1, 6), or a coupling half 6 (see Figs. 9, 15), which interacts with the splines of the drive shaft (not shown).

The rotor 1 is equipped on the inner forming surface with at least one longitudinal groove 7 and an annular groove 8, the cavities of which are interconnected, and, through the channels 9 in the sliding bearing 2, with the cavity of the annular groove 10 of the stator 3. The cavity of the annular groove 10 is connected with the inlet channel 11 divider-adder flow through channels 12, 13.

The cavity of the longitudinal groove 7 is connected in series with the cavities of the sector grooves 14, 15 formed in the sliding bearing 2. The cavity of the sector grooves 14, 15 (see FIGS. 1, 9) are connected to the consumer connection channels 16, 17 by means of radial 18 and longitudinal 19, 20 channels made in stator 3.

To increase the degree of discretization of the working fluid flow, the central planes of the sector grooves 14, 15 are displaced relative to each other along the axis of the flow divider-adder. Moreover, each of the sector grooves 14, 15 is replaced by a group of grooves (see Fig.6, 15). The lengths of the channels 19, 20 are adjusted accordingly. To ensure the communication of the cavities of the groups of sector grooves 14, 15 with the channels 19, 20, annular grooves 21, 22 are formed on the inner surface of the sliding bearing 2, with cavities associated with the cavities of the sector grooves 14, 15 through the radial channels 18.

In the first embodiment, the design (see FIGS. 1, 6), the supply channel 11, and channels 16, 17 for connecting consumers are located in different zones of the stator 3. In the second embodiment, (see FIGS. 9, 15) the supply channel 11, and channels 16, 17 connecting consumers are located in one zone of the stator 3.

The divider-flow adder is equipped with a drainage system, including annular grooves 23, radial 24 and longitudinal 25 channels.

The divider adder flow works as follows.

The splitter-flow adder is installed with its seating surface 4 in the installation location. The rotor 1 is driven by a belt drive using a pulley 5 (see Figs. 1, 6) when installing a flow divider-adder parallel to the drive mechanism shaft, or by means of a coupling 6 (see Figs. 9, 15) when installing a flow divider-adder drive mechanism shaft. When performing the flow divider-combiner according to the proposed structural schemes, it is installed in any convenient place without reference to the pump position.

When the drive is turned on, rotor 1 rotates. When operating in the flow divider mode, the pump fluid (not shown) enters the channel 11 of the stator 3, and through the channels 13, 12 into the cavity of the annular groove 10 of the stator 3. From the cavity of the annular groove 10, the working fluid passes through the channels 9 of the sliding bearing 2 into the cavity an annular groove 8 and a longitudinal groove 7 of the rotor 1.

From the cavity of the longitudinal groove 7 of the rotor 1, the pump fluid periodically flows into the cavity of the sector grooves 14, 15. From the cavity of the sector grooves, the fluid enters the cavity of the annular grooves 21, 22 (see FIGS. 6, 15) formed in the sliding bearing 2, and further, to the consumer connection channels 16, 17. When the design of the divider-adder flow, assuming a small degree of discretization of the flow of the working fluid of the pump (see figure 1, 9), the working fluid enters

the pressure line of each consumer once per revolution of rotor 1. With the design of the divider-flow adder, assuming a high degree of discretization of the flow of the pump working fluid (see Fig.6, 15), the working fluid enters the pressure line of each consumer several times (in the drawing three times) per revolution of the rotor 1.

The offset of the sector grooves 14, 15 along the axis of the flow divider-adder is necessary with an increase in the degree of discretization of the working fluid flow. The offset is also rational to reduce the leakage of the working fluid between the consumer circuits at various load conditions of the circuits.

The working fluid of the pump in discrete portions enters the channels 16, 17, pressure lines of two consumers. The parameters of the flow rate of the working fluid along the pressure pipelines of consumers do not depend on the load conditions of individual consumers. The parameters of the flow rate of the working fluid supplied by the pump along the pressure lines of consumers are determined by the geometric parameters of the longitudinal groove 8, sector grooves 14, 15 formed in the sliding bearing 2. To change the parameters of the flow rate of the working fluid along the pressure lines of various consumers at a given value of the pump flow rate, the central the angles of the sector grooves 14, 15 of the sliding bearing 2. This leads to a change in the interaction time of the cavities of each of the sector grooves 14, 15, and the longitudinal groove 7. So, to increase the flow rate of the working fluid into the pressure line of a given consumer, the central angle of the corresponding sector groove increases, to decrease it decreases.

When the flow divider-accumulator is operating in the mode of summing the working fluid flows from various hydraulic circuits into a single line, the working fluid is supplied to channels 16, 17 with stable flow characteristics, and through channels 19, 20, 18 in the annular cavity

the grooves 21, 22, and the cavity of the sector grooves 14, 15. From the cavity of the sector grooves 14, 15, the working fluid periodically enters the cavity of the longitudinal groove 7, and then into the channel 11 (in this case, the discharge).

To change the number of consumers, the number of sector grooves and channels made in the stator 3 is changed. The design of the flow divider-adder with placement of channels for supplying and discharging the working fluid in different zones of the stator (see Figs. 1, 6) has higher potential possibilities an increase in the number of consumers, since the inlet and outlet channels are spaced in different zones of the stator. The design of the flow divider-adder with the placement of the channels for supplying and discharging the working fluid in one zone of the stator (see Figs. 9, 15) has higher potentialities for rationalizing the layout solutions of drive systems using the proposed flow divider-adder, since the possibilities of providing rotor drive 1.

Thus, the proposed technical solution expands the functionality of the flow divider by providing the possibility of dividing the flow of the working fluid of any hydraulic pump without changing its design. The rotor can be driven from an external energy source without reference to the parameters of the pump, the flow of which is divided. The flow divider can be installed in any place of transmission, rational from the point of view of layout decisions, with power take-off to the rotor drive from an external energy source.

Sources of information taken into account when filling out the application:

1. Hydropneumatic automation and hydraulic drive of mobile machines. Volumetric hydraulic and pneumatic machines and gears: textbook. manual for universities / A.F. Andreev, L.V. Bartashevich, N.V. Bogdan, A.V. Korolkevich, M.I. Mamonov, E.V. Romanchik

B.V.Sabadah; Ed. V.V. Guskova - Mn .: Vysh. school., 1987-310 s. p. 149, fig. 7.11.

2. Patent No. 3362 of the Republic of Belarus for the utility model "Flow Divider", IPC F15В 11/22, publ. 02/28/07 // Afitsyiny bulletin / Natsyyanalnye tsentr iintellectualheskoe ulasnaststi / - 2007, - №1 (54), - С.189.

Claims (3)

1. A flow divider comprising a rotor mounted along the generatrix of the stator sliding bearing and capable of rotation, equipped with a cavity connected to the supply line of the flow divider-adder and periodically with consumer connection channels in the sliding bearing and the stator of the flow divider-adder, characterized the fact that the rotor is installed on the outer forming surface of the stator sliding bearing, and its cavity is made in the form of at least one longitudinal groove on the inner forming her surface. 2. The divider-flow adder according to claim 1, characterized in that the consumer connection channels in the stator sliding bearing are made in the form of sector grooves. 3. The divider-flow adder according to claim 2, characterized in that the sector grooves in the stator sliding bearing are offset relative to each other along the axis of the flow divider-adder.