CN201526545U - Manually controlled difunctional blade type hydraulic transformer - Google Patents

Abstract

A manually controlled difunctional blade type hydraulic transformer comprises a casing, a rotating shaft, a left end cover, a valve plate, stators, rotors, a right end cover, blades, a lower end cover, a variable plunger, a screw rod, a sleeve, an upper end cover, a handwheel and the like, and is characterized in that the centers of two sets of rotors and stators are fixed and superposed, the width of each rotor is slightly smaller than that of each stator, the rotors are mounted in the stators, one end of each blade is placed in blade grooves of the rotors, the other end is in contact with the inner surfaces of the stators, the blades are in radial arrangement along the rotors, the rotors are coupled with a left half shaft and a right half shaft of the rotating shaft through multiple keys, the outer rings of the stators are made into a gear form centering around the arc center of the long radius within 150 DEG, one side surface of the variable plunger is processed to be a rack form to form a gear transmission pair with the gear type stator, a groove is processed on another side surface of the variable plunger, the variable plunger and the screw rod form a transmission pair, and the valve plate is mounted on the rotating shaft and compressed on the left side surfaces and the right side surfaces of the stators.

Description

The double-acting vane hydraulic transformer of manual control

(1) technical field

The utility model relates to a kind of hydraulic transformer, and the double-acting vane hydraulic transformer of a kind of manual control specifically belongs to mechanical field.

(2) background technique

Hydraulic transformer is meant a kind of hydraulic element of realizing the pressure conversion in hydraulic transmission.Hydraulic transformer can be converted to output hydraulic pressure energy under the another kind of pressure to the input hydraulic pressure under the setting pressure expeditiously, use it can realize multi-load mutual incoherent control in constant pressure network, also can make the energy reverse flow, not only can not have restriction loss ground and drive the straight line load, but also can the rotary driving load.

Existing hydraulic transformer all is plunger-type structure basically, its working pressure height, more than 20Mpa, range of flow is big, generally be used for high pressure, high-volume hydraulic system, in, use in the low-pressure hydraulic system, efficient is very low, and plunger hydraulic transformer device structure complexity, machining accuracy height, to the oil pollution sensitivity, oil strain required precision height, price are expensive, therefore make the application area of hydraulic transformer be subjected to very big restriction.

(3) summary of the invention

Technical assignment of the present utility model is at the deficiencies in the prior art, a kind of compact structure is provided, flow is even, noise is little, running accuracy is high and steady, can be applicable to the double-acting vane hydraulic transformer of the manual control of mesohigh, middle pressure, mesolow hydraulic system, to enrich the kind of hydraulic transformer, enlarge the application area of hydraulic transformer.

The technical scheme in the invention for solving the technical problem:

A kind of double-acting vane hydraulic transformer of manual control mainly is made up of housing, running shaft, left end cap, thrust plate, stator, rotor, right end cap, blade, lower end cap, variable piston, screw rod, sleeve, upper end cap, handwheel etc.; The center of two group rotors and stator all is fixing and overlaps, the width of rotor is slightly littler than the width of stator, rotor is installed in the stator, one end of blade is put into the blade groove of rotor, the other end contacts with inner surface of stator, blade is settled along rotor radial, and rotor cooperates connection by spline with the left and right half of running shaft, and the outer ring of a stator is to make gear forms in the 150 ° of scopes in center with semi major axis center of arc; Stroking mechanism is mainly by lower end cap, variable piston, screw rod, guide pad, sleeve, upper end cap, nut, formations such as handwheel, variable piston is installed in the transformer housing, the tooth bar form is processed in a side of variable piston, another side is processed with groove, guide pad is housed on it, the upper end portion of variable piston is processed with internal thread, the lower end of screw rod is processed as outside thread, constitute transmission with variable piston, sleeve is housed on the screw rod, sleeve is contained in the transformer housing, and the upper-end surface of sleeve contacts with the lower surface cooperation of screw rod convex shoulder, and the upper surface of screw rod convex shoulder contacts with upper end cap mounted thereto cooperation, the screw rod upper end is fixed with handwheel, screw rod can be by nut check on upper end cap, and rack-type variable piston and gear type stator constitute gear driving pair, lower end cap, upper end cap is by being bolted on the housing; Thrust plate is installed on the running shaft, and be pressed on stator about on two sides, left end cap, right end cap are by being bolted on the housing.

The double-acting vane hydraulic transformer of manual control of the present utility model compared with prior art, the beneficial effect that is produced is:

(1) the utility model can be adjusted into arbitrary value in the induced pressure excursion with the constant pressure network system pressure in the mode of no restriction loss.

(2) the utility model can be applicable in mesohigh, middle pressure, the mesolow hydraulic system, promptly more than the 7Mpa, in the hydraulic system below the 20Mpa, has enlarged the application area of hydraulic transformer, has enriched the kind of hydraulic transformer.

(3) the utility model volume is little, in light weight, rotary inertia is little, and control is convenient, and control performance is good.

(4) description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structure diagram of the present utility model

Fig. 2 is an A-A view of the present utility model

Fig. 3 is a B-B view of the present utility model

Fig. 4 is a hydraulic fluid port Connecting format schematic representation of the present utility model

Fig. 5 is a transformation principle schematic of the present utility model

Among the figure: 1. housing, 2. running shaft, 3. left end cap, 4,7,8,11. thrust plates, 5,9. stator, 6,10. rotor, 12. right end cap, 13,22. blades, 14. handwheels, 15. nuts, 16. upper end caps, 17. sleeve, 18. guide pads, 19. screw rods, 20. variable pistons, 21. lower end caps

(5) embodiment

Explain below below in conjunction with drawings and Examples the utility model being done.

As shown in Figure 1, 2, 3, the double-acting vane hydraulic transformer of manual control described in the utility model mainly is made up of housing 1, running shaft 2, left end cap 3, thrust plate 4,7,8,11 and stator 5,9 and rotor 6,10 and right end cap 12, lower end cap 21, variable piston 20, screw rod 19, guide pad 18, sleeve 17, upper end cap 16, nut 15, handwheel 14, blade 13,22 etc.; The center of rotor 6 and stator 5 is fixing and overlaps, the width of rotor 6 is slightly littler than the width of stator 5, rotor 6 is installed in the stator 5, one end of blade 13 is put into the blade groove of rotor 6, the other end contacts with the internal surface of stator 5, and blade 13 is radially settled (being that laying angle is zero) along rotor 6, and rotor 6 cooperates connection by spline with the left half axle of running shaft 2, under the effect of constant pressure network system mesohigh oil, but 2 rotations of rotor 6 driven rotary axles; Stator 5 outer rings are to make gear forms in the 150 ° of scopes in center with semi major axis center of arc; By lower end cap 21, variable piston 20, screw rod 19, guide pad 18, sleeve 17, upper end cap 16, nut 15, handwheel 14 grades constitute stroking mechanism, variable piston 20 is installed in the transformer housing 1, the tooth bar form is processed in a side of variable piston 20, another side is processed with groove, guide pad 18 is housed on it, guide pad 18 can slide in the guiding groove of transformer housing 1 processing, play guiding and prevent that variable piston 20 from rotating, the upper end portion of variable piston 20 is processed with internal thread, the lower end of screw rod 19 is processed as outside thread, constitute transmission with variable piston 20, sleeve 17 is housed on the screw rod 19, sleeve 17 is contained in the transformer housing 1, the upper-end surface of sleeve 17 contacts with the lower surface cooperation of screw rod 19 convex shoulders, the upper surface of screw rod 19 convex shoulders contacts with upper end cap mounted thereto 16 cooperations, screw rod 19 can only rotate and not move up and down, screw rod 19 upper ends are fixed with handwheel 14, clockwise, being rotated counterclockwise handwheel 14 can drive on the variable piston 20 by screw rod 19, move down, rack-type variable piston 20 constitutes gear driving pair with gear type stator 5, stator 5 can rotate around the center under the effect of variable piston 20 realizes variable, during invariant, screw rod 19 is locked on the upper end cap 16 lower end cap 21 by nut 15, upper end cap 16 is by being bolted on the housing 1; Thrust plate 4,7 is installed on the running shaft 2, and be pressed on stator 5 about on two sides; The center of rotor 10 and stator 9 also is fixing and overlaps, the width of rotor 10 is slightly littler than the width of stator 9, rotor 10 is installed in the stator 9, one end of blade 22 is put into the blade groove of rotor 10, the other end contacts with the internal surface of stator 9, and blade 22 is radially settled along rotor 10, and rotor 10 cooperates connection by spline with the right axle shaft of running shaft 2, drive rotor 10 rotations, pressure oil output by running shaft 2; Thrust plate 8,11 is installed on the running shaft 2, and be pressed on stator 9 about on two sides; Left end cap 3, right end cap 12 are by being bolted on the housing 1.

But, can form quantitative part 24 by running shaft 2, rotor 10, stator 9, blade 22, thrust plate 8,11 etc. by composition variable parts 23 such as running shaft 2, rotor 6, stator 5, lower end cap 21, variable piston 20, screw rod 19, guide pad 18, sleeve 17, upper end cap 16, nut 15, handwheel 14, blade 13, thrust plates 4,7.The variable parts 23 of the double-acting vane hydraulic transformer of described manual control and structure, the functional similarity of Double-action Vane Secondary Component, variable parts 23 can be regarded Double-action Vane Secondary Component as; The quantitative part 24 of the double-acting vane hydraulic transformer of described manual control and structure, the functional similarity of quantitative double-action sliding-vane motor, quantitative part 24 can be seen a quantitative double-action sliding-vane motor as; So, the double-acting vane hydraulic transformer of described manual control can be regarded as and formed by secondary component and fixed displacement motor coaxial rigid connection, as shown in Figure 4, the upper left hydraulic fluid port M of variable parts 23 is the filler opening of the double-acting vane hydraulic transformer of manual control, filler opening M is connected with the high-pressure oil passage of constant pressure network system, the upper right hydraulic fluid port N of quantitative part 24 is the oil outlet of the double-acting vane hydraulic transformer of manual control, oil outlet N is connected with load end, filler opening M is identical with oil outlet N size, the following hydraulic fluid port of variable parts 23 and the following hydraulic fluid port of quantitative part 24 link together, become hydraulic fluid port O of double-acting vane hydraulic transformer of manual control, hydraulic fluid port O is connected with fuel tank, hydraulic fluid port O replenishes fluid to hydraulic transformer on the one hand, fluid with unnecessary fluid and hydraulic transformer internal leakage generation flows back to fuel tank on the other hand, and hydraulic fluid port O is greater than filler opening M and oil outlet N.

As shown in Figure 5, in the constant pressure network pressure p ₁Effect under, the active torque that variable parts 23 produce is:

${\mathrm{<figure-callout\; id="1"\; label="T"\; filenames="H2009202394750E00011.png"\; state="\{\{state\}\}">T</figure-callout>}}_1=\frac{{\mathrm{<figure-callout\; id="1"\; label="V"\; filenames="H2009202394750E00011.png"\; state="\{\{state\}\}">V</figure-callout>}}_1}{2\mathrm{\&pi;}}(p_1-p_0)$

The drag torque that quantitative part 24 produces is:

${\mathrm{<figure-callout\; id="2"\; label="T"\; filenames="H2009202394750E00011.png,H2009202394750E00021.png"\; state="\{\{state\}\}">T</figure-callout>}}_2=-\frac{{\mathrm{<figure-callout\; id="2"\; label="V"\; filenames="H2009202394750E00011.png,H2009202394750E00021.png"\; state="\{\{state\}\}">V</figure-callout>}}_2}{2\mathrm{\&pi;}}(p_2-p_0)$

In the formula: V ₁, V ₂Be the discharge capacity of variable parts 23, quantitative part 24, p ₁, p ₂Be the pressure of hydraulic transformer into and out of oil port, p ₀Be the pressure at fuel tank place, common p ₀=0.

Ignore the frictional resistance moment between variable parts 23 and the quantitative part 24, work as T ₁+ T ₂=0 o'clock, hydraulic transformer was in state of equilibrium, and this moment, hydraulic transformer into and out of the pressure ratio between the hydraulic fluid port was:

$\mathrm{\&lambda;}=\frac{p_2}{{\mathrm{<figure-callout\; id="1"\; label="p"\; filenames="H2009202394750E00011.png"\; state="\{\{state\}\}">p</figure-callout>}}_1}=\frac{V_1}{V_2}---\left(1\right)$

In the formula: λ is a transformation ratio.

By above derivation as can be seen, transformation ratio is the ratio of hydraulic transformer inlet/outlet pressure, and it also equals the inverse ratio of corresponding discharge capacity.Here pressure p ₁Be the pressure of constant pressure network, it is a definite value, and pressure p ₂Depend on that due to load, therefore the transformation of the double-acting vane hydraulic transformer of described manual control comes down to regulate discharge capacity V ₁/ V ₂Value because the discharge capacity V of quantitative part 24 ₂Be a fixed value, so be discharge capacity V in the work by Moderator Variable parts 23 ₁Satisfy the needs of load variations.

When the double-acting vane hydraulic transformer of described manual control is not worked, the equal transfixion of rotor of variable parts 23 and quantitative part 24, the stator of variable parts 23 is in initial rotational position (zero point), the discharge capacity V of variable parts 23 ₁Be zero, by formula (1) as can be known, transformation ratio λ equals zero.

During the work of the double-acting vane hydraulic transformer of described manual control, be the variation that adapts to load, rotation hand wheel 14, the stator of variable parts 23 clockwise or be rotated counterclockwise, along with the variation of stator angle of swing, the discharge capacity V of variable parts 23 ₁Constantly change, by formula (1) as can be known, transformation ratio λ just changes thereupon, realizes transformation, satisfies the needs of load variations.

The size and Orientation of stator 5 angle of swing of the variable parts 23 of the double-acting vane hydraulic transformer of described manual control is by the displacement decision of variable piston 20, the displacement of variable piston 20 is by the corner control of handwheel 14, by the displacement (size and Orientation) of rotation hand wheel 14 adjustable variables plungers 20.

Claims (2)

1. a double-acting vane hydraulic transformer of manually controlling comprises housing (1), running shaft (2), left end cap (3), thrust plate (4,7,8,11), stator (5,9), rotor (6,10), right end cap (12), blade (13,22), handwheel (14), nut (15), upper end cap (16), sleeve (17), guide pad (18), screw rod (19), variable piston (20), lower end cap (21); It is characterized in that, the center of rotor (6) and stator (5) is fixing and overlaps, the width of rotor (6) is slightly littler than the width of stator (5), rotor (6) is installed in the stator (5), one end of blade (13) is put into the blade groove of rotor (6), the other end of blade (13) contacts with the internal surface of stator (5), blade (13) is radially settled along rotor (6), rotor (6) cooperates connection by spline with the left half axle of running shaft (2), stator (5) outer ring is to make gear forms in the 150 ° of scopes in center with semi major axis center of arc, variable piston (20) is installed in the transformer housing (1), the tooth bar form is processed in a side of variable piston (20), variable piston (20) constitutes gear driving pair with gear type stator (5), another side of variable piston (20) is processed with groove, guide pad (18) is housed on the groove of variable piston (20), the upper end portion of variable piston (20) is processed as internal thread, the lower end of screw rod (19) is processed as outside thread, screw rod (19) constitutes transmission with variable piston (20), sleeve (17) is housed on the screw rod (19), sleeve (17) is installed in the transformer housing (1), the upper-end surface of sleeve (17) contacts with the lower surface cooperation of screw rod (19) convex shoulder, the upper surface of screw rod (19) convex shoulder cooperates with upper end cap (16) on being installed in screw rod (19) and contacts, screw rod (19) upper end is fixed with handwheel (14), screw rod (19) can be locked on the upper end cap (16) by nut (15), lower end cap (21), upper end cap (16) is by being bolted on the housing (1), thrust plate (4,7) be installed on the running shaft (2), and be pressed on stator (5) about on two sides; The center of rotor (10) and stator (9) is fixing and overlaps, the width of rotor (10) is slightly littler than the width of stator (9), rotor (10) is installed in the stator (9), one end of blade (22) is put into the blade groove of rotor (10), the other end of blade (22) contacts with the internal surface of stator (9), blade (22) is radially settled along rotor (10), rotor (10) cooperates connection by spline with the right axle shaft of running shaft (2), thrust plate (8,11) be installed on the running shaft (2), and be pressed on stator (9) about on two sides, left end cap (3), right end cap (12) is by being bolted on the housing (1).

2. the double-acting vane hydraulic transformer of manual control according to claim 1, it is characterized in that, upper left hydraulic fluid port (M) is the filler opening of the double-acting vane hydraulic transformer of manual control, filler opening (M) is connected with the high-pressure oil passage of constant pressure network system, upper right hydraulic fluid port (N) is the oil outlet of the double-acting vane hydraulic transformer of manual control, oil outlet (N) is connected with load end, filler opening (M) is identical with oil outlet (N) size, following hydraulic fluid port is a hydraulic fluid port of double-acting vane hydraulic transformer (O) of manually controlling, hydraulic fluid port (O) is connected with fuel tank, and hydraulic fluid port (O) is greater than filler opening (M) and oil outlet (N).

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