CN109779869A - A kind of large power shaft of similar planetary gear train structure is to pluger type hydraulic pump - Google Patents
A kind of large power shaft of similar planetary gear train structure is to pluger type hydraulic pump Download PDFInfo
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- CN109779869A CN109779869A CN201910120734.6A CN201910120734A CN109779869A CN 109779869 A CN109779869 A CN 109779869A CN 201910120734 A CN201910120734 A CN 201910120734A CN 109779869 A CN109779869 A CN 109779869A
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Abstract
The invention belongs to axial plunger hydraulic pump fields, and the large power shaft of similar planetary gear train structure a kind of is specifically disclosed to pluger type hydraulic pump, it includes left end cap, driving member, bracket, N number of modular pump, modular pump right end cap and pipeline, left end cap and modular pump right end cap are divided into the both ends of bracket, driving member is coaxially arranged with left end cap, and it is set between left end cap and bracket, driving member includes transmission shaft and the bull gear that is integrally machined with transmission shaft, transmission shaft passes through left end cap close to one end of left end cap, and is connected with external power source；N number of modular pump is arranged circumferentially along the transmission shaft, and is arranged between bracket and modular pump right end cap, and N number of modular pump is connected with pipeline, and and large ring gear meshing, the power of external power supply is transferred in modular pump by bull gear with this.The present invention has many advantages, such as that flow is big, structure is simple, power is big, cooperation hydraulic motor constant speed driving synchronous motor power generating quality is high.
Description
Technical field
The invention belongs to axial plunger hydraulic pump fields, more particularly, to a kind of big function of similar planetary gear train structure
Rate axial plunger type hydraulic pump.
Background technique
With the development of wind generating technology, there are many wind-power electricity generation equipments, but traditional wind-power electricity generation equipment is also
Have the following problems: economic benefit is low in the lower situation of wind speed, and electricity needs is small when some area wind-force are big, causes
Economy is low, and the disposable high production capacity of input cost is small, and maintenance and maintenance cost are high, generates electricity unstable, being connected to the grid also will cause
Harmonic pollution.To solve the above problems, those skilled in the art is studied, by cooperating hydraulic horse using hydraulic pump
It reaches, hydraulic energy can be converted wind energy into, to export stable mechanical energy.
But current hydraulic pump is difficult to realize high-power conveying, is unable to satisfy the powerful operating condition of low speed.Therefore, still
It need to conduct further research, to obtain the hydraulic pump that can meet the high-power operating condition of extreme low speed.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of the big of similar planetary gear train structure
Multiple unit hydraulic planger pumps are arranged on planetary gear train, are used by planetary gear train by power axial direction pluger type hydraulic pump
Gear engagement mode drive each unit pump work, have when input low speed gross efficiency height, by Flat valve leak it is small,
The advantages that power of pump is big, stability of flow pulsation is small.
To achieve the above object, the invention proposes a kind of high-power axial plunger type hydraulics of similar planetary gear train structure
Pump comprising left end cap, driving member, bracket, N number of modular pump, modular pump right end cap and pipeline, in which:
The left end cap and modular pump right end cap are divided into the both ends of the bracket, and the driving member and the left end cap are same
Axis arrangement, and be set between the left end cap and bracket, which includes transmission shaft and is integrally machined with transmission shaft
Bull gear, the transmission shaft passes through the left end cap close to one end of the left end cap, and is connected with external power source；
N number of modular pump being arranged circumferentially along the transmission shaft, and be arranged in the bracket and modular pump right end
Between lid, which is connected with the pipeline, and with the large ring gear meshing, with this by the bull gear will be outer
The power of portion's power source is transferred in modular pump.
As it is further preferred that the modular pump is preferably dosing unit pump and/or variable cell pump.
As it is further preferred that the dosing unit pump include cylinder body, left swash plate, left return plate, left plunger piston slippery boots group,
Left backhaul flexural pivot, retracting spring, sucking extrude valve group, right plunger piston shoes group, right swash plate, right return plate and right backhaul flexural pivot,
In, the outside of the cylinder body is provided with the gear with the large ring gear meshing, and left and right plunger piston slippery boots group is symmetrically arranged in institute
It states to form plunger pair in cylinder body, each pair of plunger extrudes valve group to a sucking is shared；Left and right swash plate is divided into the cylinder body
Left and right ends, and be connected respectively with left and right return plate, the left and right return plate and corresponding left and right plunger piston slippery boots group are hinged；Institute
It states left and right backhaul flexural pivot to be divided into the cavity of the cylinder body left and right ends, the left and right backhaul flexural pivot one end is by retracting spring top
Firmly, the other end is by spherical surface and left and right return plate center sphere-contact, is pressed to left and right plunger piston slippery boots group always with this left and right
Swash plate.
As it is further preferred that the variable cell pump include cylinder body, left swash plate, left return plate, left plunger piston slippery boots group,
Left backhaul flexural pivot, retracting spring, sucking extrude valve group, right plunger piston shoes group, right swash plate, right return plate, right backhaul flexural pivot and
Variable adjusts component, wherein the outside of the cylinder body is provided with the gear with the large ring gear meshing, left and right plunger piston slippery boots group
It is symmetrically arranged in the cylinder body to form plunger pair, each pair of plunger extrudes valve group to a sucking is shared；Left and right swash plate
The left and right ends of the cylinder body are divided into, and are connected respectively with left and right return plate, the left and right return plate and corresponding left and right column
It is hinged to fill in piston shoes group；The left and right backhaul flexural pivot is divided into the cavity of the cylinder body left and right ends, the left and right backhaul flexural pivot
One end is withstood by retracting spring, and the other end passes through spherical surface and left and right return plate center sphere-contact；The variable adjusts component and sets
In the right end of the cylinder body, adjusted for flow variable.
It is described fuel-displaced as it is further preferred that it includes fuel discharge port body and variable handle that the variable, which adjusts component,
Mouth fitting body and variable handle are sequentially arranged at the right end of right swash plate by key.
As it is further preferred that it includes swash plate support spring seat and variable sliding block that the variable, which adjusts component, it is described tiltedly
Disk support spring seat and variable sliding block are installed in the modular pump right end cap, the swash plate support spring seat by spring with
Right swash plate is connected, and the variable sliding block can be slided in modular pump right end cap, is connected by connecting rod with right swash plate.
As it is further preferred that each modular pump is in circumferentially distributed installation, starting phase angle differs 1/N stream respectively
Measure the pulsation period.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, mainly have below
Technological merit:
1. the present invention provides power to unit hydraulic planger pump from radial using planetary gear train structure, it is different from conventional hydraulic
Plunger pump directly provides the structure of power from axial, and specifically when inputting low speed, gross efficiency is high, it is small, pump to be leaked by Flat valve
Power big (reaching 1000KW or more), stability of flow are pulsed the advantages that small, power density is high, space utilization rate is high.
2. large power shaft of the invention is provided using gear engagement structure to unit hydraulic planger pump to pluger type hydraulic pump
Power, bull gear provide power directly to cylinder body, and the revolving speed of revolving speed and bull gear can form certain speed increasing ratio on cylinder body,
Increase revolving speed to a certain extent, and non-traditional no step-up drive, design through the invention improve the revolving speed of hydraulic pump, so that
Pump also can efficient operation in the lower situation of input speed.
3. large power shaft of the invention uses the structure of circumferentially distributed N number of unit hydraulic pump to pluger type hydraulic pump, improve
The total displacement of pump, and space is reasonably used, so that the wind energy that pump can reach super large absorbs power.
4. there are three types of structures for unit hydraulic planger pump into pluger type hydraulic pump for large power shaft of the invention, one kind is quantitative
Pump, two kinds are variable modular pump, and various structures can manually adjust the discharge capacity of hydraulic pump, so that hydraulic according to different wind speed
Motor obtains stable hydraulic energy always.
5. the present invention is equipped with N number of two inclined plate hydraulic planger pump on bracket, it is different from traditional pump form, discharge capacity is
2N times of common pump, moreover it is possible to effectively reduce flow pulsation, modular pump phase angle is staggered modular pump in circumferentially distributed installation
The 1/N in flow pulsation period, since flow finally summarizes together, pulsation reduces known to principle of stacking, and power increases, and reaches
Super large rank.
6. large power shaft of the invention is to plunger hydraulic pump discharge is big, structure is simple, power is big, cooperation hydraulic motor is fixed
Speed driving synchronous motor power generating quality is high, eliminates gearbox and frequency conversion equipment, and save the cost reduces weight, hydraulic also to have
Flexible energy storage.
Detailed description of the invention
Fig. 1 is the large power shaft of similar planetary gear train structure of the invention to the main view of pluger type hydraulic pump；
Fig. 2 is the A direction view of Fig. 1；
Fig. 3 is the main view of the first dosing unit pump of the invention；
Fig. 4 is the main view of second of dosing unit pump of the invention；
Fig. 5 is the main view of the first variable cell pump of the invention；
Fig. 6 is the main view of second of variable cell pump of the invention；
Fig. 7 a is the stress analysis schematic diagram of the dosing unit pump cylinder right end runner in Fig. 3；
Fig. 7 b is the stress analysis schematic diagram of the dosing unit pump cylinder right end runner in Fig. 4；
Fig. 8 is the main view of the large power shaft taken turns centered on gear wheel of the present invention to pluger type hydraulic pump.
In figure: 1- left end cap, 2- bull gear, 3- bracket, 4- modular pump, the right swash plate of 5-, 6- pipeline, the left swash plate of 7-, 8- are left
Return plate, 9- pressing plate, the left plunger piston slippery boots group of 10-, the left flexural pivot of 11-, 12- retracting spring, 13- sucking extrusion valve group, 14- cylinder body,
15- right plunger piston shoes group, the right swash plate of 16-, the right return plate of 17-, the right flexural pivot of 18-, 19- sealing element, 20- fuel discharge port body, 21-
Variable handle, 23- key, 24- swash plate support spring seat, 25- variable sliding block, 26- radial flow path.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
The present invention proposes a kind of structure type of new axial plunger pump parallel connection, gives hydraulic column from radial using planetary gear train
The cylinder body of plug pump provides power, is different from conventional hydraulic plunger pump and directly provides the structure type of power, tooth on cylinder body from axial
The revolving speed of wheel and the revolving speed of bull gear have certain speed increasing ratio, increase revolving speed to a certain extent, planetary gear train is in the present invention
Play an accelerating function.
As shown in Figure 1-3, a kind of high-power axial piston of similar planetary gear train structure provided in an embodiment of the present invention
Hydraulic pump comprising left end cap 1, driving member 2, bracket 3, N number of modular pump 4, modular pump right end cap 5 and pipeline 6, wherein left end
Lid 1 and modular pump right end cap 5 are divided into the both ends of bracket 3, and driving member 2 and left end cap 1 are coaxially arranged, and are set to left end cap 1
Between bracket 3, which includes transmission shaft and the bull gear being integrally machined with transmission shaft, and transmission shaft is close to left end cap 1
One end pass through left end cap 1, and be connected with external power source；N number of (such as 8) modular pump 4 is along the circumferential uniform of transmission shaft
Arrangement, and be arranged between bracket 3 and modular pump right end cap 5, which is connected with pipeline 6, and and bull gear
The power of external power supply is transferred in each modular pump 4 by engagement with this by bull gear from radial.
Specifically, bracket 3 is the combination of shell and internal support, left end cap 1 is fixedly installed in branch by soket head cap screw
The left end of frame 3, bracket 3 is fixed, and modular pump right end cap 5 is mounted on the corresponding position of bracket right end by screw；Bull gear and biography
Moving axis is processed as one, and through two bearing supports between left end cap 1 and bracket 3, the left side shaft end of transmission shaft is set transmission shaft
It is equipped with spline and couples and provide power, the quantity of modular pump right end cap 5 with external power supply such as motor or wind power generation impeller
It is consistent with the quantity of modular pump 4, the corresponding position of 3 right end of bracket is fixedly mounted on by screw, modular pump 4 passes through bearing branch
Support between bracket 3 and modular pump right end cap 5, and and large ring gear meshing, bull gear transfer power to the cylinder body 14 of modular pump
On.Fig. 1 is the scheme that bull gear is external tooth wheel construction, and Fig. 7 is the scheme taken turns centered on bull gear, and two schemes are having the same
Effect, it is equally applicable to be directed to two schemes for described function and advantage below.
Bull gear and the transmission shaft setting of hydraulic pump of the present invention are integral, by external power supply such as motor or wind-power electricity generation
Impeller provides power, and bull gear imparts power to each cylinder body on planetary gear train by gear mechanism, when cylinder body rotates,
Plunger makees cyclic movement under the action of two swash plates and return mechanism, so that plunger cavity volume generating period changes,
Sucking and Extrusion are completed under inlet valve and discharge van periodic duty, the axis that cylinder body only surrounds cylinder body makees returning for itself
Transhipment is dynamic, does not revolve with bull gear.The hydraulic pump that the present invention designs due to more than the number of teeth on bull gear gear ratio cylinder body so tool
Have speed increasing ratio, have transmission ratio between two gears therefore have speed increasing ratio, thus to a certain extent adding unit pump revolving speed (such as
5 times of speedup), solve pump when inputting low speed, the problem that mechanical efficiency is low, volumetric efficiency is low, gross efficiency is low, so that pump can
The efficiency operation under lower input speed.
As shown in Figure 1, pipeline and modular pump junction are provided with check valve, so that liquid can only be flowed from sucking to extrusion
Dynamic, after avoiding one of modular pump from damaging, highly pressurised liquid is connected to by the unit hydraulic pump of damage with low pressure.
In the present invention, the rotation on bracket of modular pump 4 is preferably dosing unit pump similar to the planetary gear of planetary gear train
And/or variable cell pump, as shown in Figures 3 and 4, dosing unit pump is sliding including cylinder body 14, left swash plate 7, left return plate 8, left plunger
Boots group 10, Zuo Huicheng flexural pivot 11, retracting spring 12, sucking extrude valve group 13, right plunger piston shoes group 15, right swash plate 16, right backhaul
Disk 17 and right backhaul flexural pivot 18, wherein the outside of cylinder body 14 is provided with the gear with large ring gear meshing, left and right plunger piston slippery boots group
10, it 15 is symmetrically arranged in cylinder body 14 to form plunger pair, each pair of plunger extrudes valve group 13 to a sucking is shared；Left,
Right swash plate 7,16 is divided into the left and right ends of cylinder body 14, and left and right swash plate 7,16 is connected with left and right return plate 8,17 respectively, the left side,
Right return plate 8,17 and corresponding left and right plunger piston slippery boots group 10,15 are hinged；It is left that left and right backhaul flexural pivot 11,18 is divided into cylinder body 14
In the cavity at right both ends, the left and right backhaul flexural pivot 11,18 one end are withstood by retracting spring 12, the other end by spherical surface with it is left and right
Return plate 8,17 center sphere-contacts, so that left and right return plate 8,17 obtains one for left and right plunger piston slippery boots group 10,15 always
Press to the power of left and right swash plate 7,16.
Specifically, left and right swash plate 7,16 is separately fixed on 3 left end corresponding position of bracket and modular pump right end cap 5, left,
The acute angle that right swash plate 7,16 is 16 ° with end cap angle offers the plunger cavity of installation plunger piston slippery boots group inside 14 both ends of cylinder body, in
Portion is provided with open cavity, and the liquid in the cavity can enter plunger cavity by inlet valve, liquid also can by discharge van from
Cavity extrudes, and sucks and extrudes the middle part that valve group 1 is set in cylinder body, is common inlet valve and discharge van, sucks and extrude and divide
It ends into.The left end of the cylinder body 14 is additionally provided with pressing plate 9, is used for fixed column plug sleeve, is integrally formed it with cylinder body, right swash plate
16 right end is provided with the sealing element 19 for sealing.
As shown in Figures 3 and 4, there are two types of structure types, quantitative two inclined plate hydraulic planger pump shown in Fig. 3 to adopt for dosing unit pump
It is connected to the right end of mechanical seal, cylinder body with pipeline 6；Quantitative two inclined plate hydraulic planger pump shown in Fig. 4 is using rotation lattice Lay
Circle sealing forms radial flow path 26 in cylinder body right end, and the radial flow path 26 and pipeline 6 are connected.By two cylinder bodies of Fig. 7 a and Fig. 7 b
Force analysis figure is it is found that by the hydraulic coupling that size to the left is F1=P × A, (P is in the left side of the cylinder body right end runner in Fig. 4
Operating pressure, A are the flow channel cross-section products of cylinder interior), the hydraulic coupling that right side is F2=P × A by size to the right, You Liping
The hydraulic coupling that weighing apparatus principle Boring mill is subject to upwards is a pair of of equilibrant force, and the cylinder body right end runner in Fig. 3 is by a size
F3=P × A hydraulic coupling direction to the left, therefore the advantages of the structure of Fig. 4 balances hydraulic coupling.
Specifically, there are two types of structures for variable cell pump 4, the first is rotation swash plate angle variable diclinic as shown in Figure 5
Disk hydraulic planger pump reaches variable effect by rotation swash plate with beat swash plate circumferential direction angle, and second is as shown in FIG. 6
Change swashplate angle variable two inclined plate hydraulic planger pump, reaches variable effect by changing swash plate meridian plane leaning angle.Wherein,
Plunger pump in Fig. 5 includes cylinder body 14, left swash plate 7, left return plate 8, left plunger piston slippery boots group 10, Zuo Huicheng flexural pivot 11, backhaul bullet
Spring 12, sucking extrude valve group 13, right plunger piston shoes group 15, right swash plate 16, right return plate 17, right backhaul flexural pivot 18 and variable tune
Save component, wherein the outside of cylinder body 14 is provided with the gear with large ring gear meshing, left and right 10,15 bilateral symmetry of plunger piston slippery boots group
It is arranged in cylinder body 14 to form plunger pair, each pair of plunger extrudes valve group 13 to a sucking is shared；Left and right swash plate 7,16 sets up separately
Be connected in the left and right ends of cylinder body 14, and respectively with left and right return plate 8,17, the left and right return plate 8,17 with it is corresponding left and right
Plunger piston slippery boots group 10,15 is hinged；Left and right backhaul flexural pivot 11,18 is divided into the cavity of 14 left and right ends of cylinder body, this is left and right time
Journey flexural pivot 11,18 one end are withstood by retracting spring 12, and the other end passes through spherical surface and left and right return plate 8,17 center sphere-contacts；
Variable adjusts the right end that component is set to cylinder body 14, adjusts for flow variable, and it includes fuel discharge port body which, which adjusts component,
20 and variable handle 21, fuel discharge port body 20 and variable handle 21 are sequentially arranged at the right end of right swash plate 16 by key 23, should
Fuel discharge port body 20 and pipeline 6 are connected.The plunger pump is oblique by the right side of key connecting by the way that variable handle is rotated an angle
Disk rotates with it an angle, then the relative angle of two swash plates of modular pump can be changed, so that the useful effect row of two plungers
Journey changes, to realize variable.
Plunger pump in Fig. 6 includes cylinder body 14, left swash plate 7, left return plate 8, left plunger piston slippery boots group 10, Zuo Huicheng flexural pivot
11, retracting spring 12, sucking extrude valve group 13, right plunger piston shoes group 15, right swash plate 16, right return plate 17, right backhaul flexural pivot 18
And variable adjusts component, wherein the outside of cylinder body 14 is provided with the gear with large ring gear meshing, left and right plunger piston slippery boots group 10,
15 are symmetrically arranged in cylinder body 14 to form plunger pair, and each pair of plunger extrudes valve group 13 to a sucking is shared；It is left and right oblique
Disk 7,16 is divided into the left and right ends of cylinder body 14, and is connected respectively with left and right return plate 8,17, the left and right return plate 8,17 with
Corresponding left and right plunger piston slippery boots group 10,15 is hinged；Left and right backhaul flexural pivot 11,18 is divided into the cavity of 14 left and right ends of cylinder body
Interior, the left and right backhaul flexural pivot 11,18 one end are withstood by retracting spring 12, and the other end passes through in spherical surface and left and right return plate 8,17
Bulbus cordis face contact；Variable adjusts the right end that component is set to cylinder body 14, and variable adjusts component and includes swash plate support spring seat 24 and become
Sliding block 25 is measured, swash plate support spring seat 24 and variable sliding block 25 are installed in modular pump right end cap 5, swash plate support spring seat 24
It is connected by spring with right swash plate 16, variable sliding block 25 can slide in modular pump right end cap 5, pass through connecting rod and right swash plate 16
It is connected, which is also connected with handle, and variable sliding block is controlled by handle and is slided in modular pump right end cap bore, variable
Sliding block drives right swash plate to move by connecting rod, so that the inclination angle for controlling right swash plate achievees the purpose that variable；The right end of cylinder body 14 is set
It is equipped with fuel discharge port body, and is connected by fuel discharge port body and pipeline 6.
For each modular pump in circumferentially distributed installation, starting phase angle differs 1/N flow pulsation respectively in the present invention
Period (its flow pulsation period is known parameters after the structure determination of modular pump) is installation base with first modular pump
Standard, when next unit pump installation, rotate 1/N flow pulsation period around the axis of modular pump on the benchmark of a upper modular pump
It is installed after angle, and so on, so that 1/N flow pulsation period is differed between the starting phase angle of adjacent cells pump, by
It is radial power to be provided by bull gear, therefore each cylinder body is to rotate synchronously in each pump, due to 1/N week of carrier phase shift
Phase, therefore flow pulsation figure can differ 1/N period, flow pulsation crest value can make flow arteries and veins with valley value complementation after superposition
Dynamic to reduce, power increases after superposition, reaches super large rank.
The working process and principle of large power shaft of the invention to pluger type hydraulic pump are as follows:
Such as Fig. 1-3, external power supply is coupled by spline drives transmission shaft and bull gear to make clockwise rotation, canine tooth
Circle is rotated by gear engagement with the cylinder body of each modular pump, in left swash plate 6, right swash plate 15 and flexural pivot return mechanism
Under collective effect, each plunger in plunger cavity execution cycle property move back and forth so that each plunger hole formed height it is alternate
Pressure field；With the rotation of cylinder body, when plunger cavity volume constantly expands, and is in low-voltage field, sucking valve core is opened up, liquid
Body sucking, completes the suction process of plunger pump；Continue to rotate with cylinder body, when the plunger cavity volume for completing suction action is continuous
It reduces, when being in high-voltage field, the spool of inlet valve is closed and compressed downwards, is extruded valve core and is opened downwards, realizes unit plunger
The extrusion of pump acts, and liquid is discharged by the road by cylinder body cavity and is finally done work to the external world.
As shown in figure 5, the relative position that swash plate rotates between angle latter two swash plate changes, a pair of of plunger exists
It changes in a cycle from volume minimum state to the liquid volume that volume maximum rating sucks, the volume being discharged also is sent out
It is raw to change event displacement variation.As shown in fig. 6, control variable sliding block slides in modular pump right end cap bore, variable sliding block passes through company
Bar control is moved by swash plate, so that the inclination angle for controlling swash plate achievees the purpose that variable.
Large power shaft of the invention is had using the scheme of multiple plunger pump parallel connections for wind-power electricity generation to pluger type hydraulic pump
Have: can satisfy the powerful operating condition of extreme low speed, cooperation hydraulic motor constant speed driving synchronous motor power generation eliminates existing
The acceleration equipment and frequency conversion equipment of wind generator, save the cost reduce weight, hydraulic also to have many advantages, such as flexible energy storage.Due to
Operational efficiency is low at the low rotational speed for pluger type hydraulic pump, the high-power axial plunger for the similar planetary gear train structure that the present invention designs
Formula hydraulic pump can satisfy the low powerful operating condition of revolving speed, is also equipped with the easy variable advantage of high pressure of axial plunger pump, is suitable for
Wind-power electricity generation and power generation with marine energy.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (7)
1. a kind of large power shaft of similar planetary gear train structure is to pluger type hydraulic pump, which is characterized in that including left end cap (1),
Driving member (2), bracket (3), N number of modular pump (4), modular pump right end cap (5) and pipeline (6), in which:
The left end cap (1) and modular pump right end cap (5) are divided into the both ends of the bracket (3), the driving member (2) with it is described
Left end cap (1) is coaxially arranged, and is set between the left end cap (1) and bracket (3), the driving member (2) include transmission shaft with
And the bull gear being integrally machined with transmission shaft, the transmission shaft pass through the left end cap close to one end of the left end cap (1)
(1), and with external power source it is connected；
N number of modular pump (4) being arranged circumferentially along the transmission shaft, and be arranged right in the bracket (3) and modular pump
Between end cap (5), which is connected with the pipeline (6), and passes through institute with the large ring gear meshing with this
It states bull gear the power of external power supply is transferred in modular pump (4).
2. the large power shaft of planetary gear train structure as described in claim 1 similar is to pluger type hydraulic pump, which is characterized in that institute
Stating modular pump (4) is preferably dosing unit pump and/or variable cell pump.
3. the large power shaft of planetary gear train structure as claimed in claim 2 similar is to pluger type hydraulic pump, which is characterized in that institute
Stating dosing unit pump includes cylinder body (14), left swash plate (7), left return plate (8), left plunger piston slippery boots group (10), Zuo Huicheng flexural pivot
(11), retracting spring (12), sucking extrude valve group (13), right plunger piston shoes group (15), right swash plate (16), right return plate (17) and
Right backhaul flexural pivot (18), wherein the outside of the cylinder body (14) is provided with the gear with the large ring gear meshing, left and right plunger
Piston shoes group (10,15) is symmetrically arranged in the cylinder body (14) to form plunger pair, and each pair of plunger is sucked to sharing one
It extrudes valve group (13)；Left and right swash plate (7,16) is divided into the left and right ends of the cylinder body (14), and respectively with left and right return plate
(8,17) it is connected, the left and right return plate (8,17) is hinged with corresponding left and right plunger piston slippery boots group (10,15)；Described left and right time
Journey flexural pivot (11,18) is divided into the cavity of the cylinder body (14) left and right ends, left and right backhaul flexural pivot (the 11,18) one end by
Retracting spring (12) is withstood, and the other end is by spherical surface and left and right return plate (8,17) center sphere-contact, with this by left and right column
Plug piston shoes group (10,15) presses to left and right swash plate (7,16) always.
4. to pluger type hydraulic pump, feature exists the large power shaft of similar planetary gear train structure as claimed in claim 2 or claim 3
In the variable cell pump includes cylinder body (14), left swash plate (7), left return plate (8), left plunger piston slippery boots group (10), Zuo Huicheng ball
Cut with scissors (11), retracting spring (12), sucking extrusion valve group (13), right plunger piston shoes group (15), right swash plate (16), right return plate
(17), right backhaul flexural pivot (18) and variable adjust component, wherein the outside of the cylinder body (14) is provided with and the bull gear
Meshed gears, left and right plunger piston slippery boots group (10,15) are symmetrically arranged in the cylinder body (14) to form plunger pair, often
Valve group (13) are extruded to a sucking is shared to plunger；Left and right swash plate (7,16) is divided into the left and right ends of the cylinder body (14),
And be connected respectively with left and right return plate (8,17), the left and right return plate (8,17) and corresponding left and right plunger piston slippery boots group (10,
15) hinged；The left and right backhaul flexural pivot (11,18) is divided into the cavity of the cylinder body (14) left and right ends, this is left and right time
Journey flexural pivot (11,18) one end is withstood by retracting spring (12), and the other end passes through spherical surface and left and right return plate (8,17) center spherical surface
Contact；The variable adjusts the right end that component is set to the cylinder body (14), adjusts for flow variable.
5. the large power shaft of planetary gear train structure as claimed in claim 4 similar is to pluger type hydraulic pump, which is characterized in that institute
Stating variable and adjusting component includes fuel discharge port body (20) and variable handle (21), the fuel discharge port body (20) and variable hand
Handle (21) is sequentially arranged at the right end of right swash plate (16) by key (23).
6. to pluger type hydraulic pump, feature exists the large power shaft of similar planetary gear train structure as described in claim 4 or 5
In it includes swash plate support spring seat (24) and variable sliding block (25), the swash plate support spring seat that the variable, which adjusts component,
(24) it is installed in the modular pump right end cap (5) with variable sliding block (25), the swash plate support spring seat (24) passes through bullet
Spring is connected with right swash plate (16), and the variable sliding block (25) can be slided in modular pump right end cap (5), passes through connecting rod and right swash plate
(16) it is connected.
7. the large power shaft of similar planetary gear train structure as claimed in any one of claims 1 to 6 is to pluger type hydraulic pump, special
Sign is that for each modular pump in circumferentially distributed installation, starting phase angle differs 1/N flow pulsation period respectively.
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| CN109779869B (en) | 2024-02-02 |
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