CN208073692U - Volume adjustable fluid pump - Google Patents
Volume adjustable fluid pump Download PDFInfo
- Publication number
- CN208073692U CN208073692U CN201820491488.6U CN201820491488U CN208073692U CN 208073692 U CN208073692 U CN 208073692U CN 201820491488 U CN201820491488 U CN 201820491488U CN 208073692 U CN208073692 U CN 208073692U
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- Prior art keywords
- swash plate
- baffle ring
- piston assembly
- inclination
- cylinder
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- 239000012530 fluid Substances 0.000 title claims abstract description 54
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- 210000003128 head Anatomy 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 4
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- 230000000903 blocking effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 210000003027 ear inner Anatomy 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000008713 feedback mechanism Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a kind of volume adjustable fluid pumps, including shell, and driving space is formed in inside；Swash plate positioned at driving space and is used and can be installed in such a way that holder pivots about, the angle of inclination of inclined surface can be adjusted；Cylinder block is installed on driving space and is rotated under the action of drive shaft, extends to form multiple cylinder-bores along the direction parallel with drive shaft in inside；Piston assembly is inserted into the inside of the cylinder-bore of cylinder block at least partially, and the inside in cylinder-bore while being rotated along cylinder block moves linearly；Baffle ring rotates together in the state of being connect with piston assembly and piston assembly is adjacent in the inclined surface to swash plate along piston assembly；Tilt adjusting section is passed in and out in the inside in driving space by shell, during being inserted into driving space interior, pushes the bottom surface of swash plate using one side end and the angle of inclination of swash plate is adjusted whereby.
Description
Technical field
The utility model is related to a kind of fluid pumps more particularly to one kind to utilize tilt adjusting section to swash plate and installation
The fluid that the angle of inclination of plate-like baffle ring on swash plate is adjusted and is adjusted whereby to the Fluid pressure based on piston
Pump.
Background technology
The general fluid pump of such as hydraulic pump is using when the inclined swash plate of one side (Swash Plate) is rotated
The phase change occurred work.Next, will simply be illustrated to its structure.Piston is connected by piston piston shoes
It is connected to baffle ring, for generating Fluid pressure by the linear movement action in cylinder interior.Baffle ring for stopping piston piston shoes,
And since baffle ring offsets with swash plate, therefore finally piston can be made to be adjacent to onto swash plate.At this point, because the baffle ring be with
The piston is that medium is connected to the cylinder, therefore the baffle ring will also be rotated in the inside of shell.
Fluid pump as described above utilizes such as internal combustion engine in the weight equipments such as the buildings such as such as excavator equipment or panzer
The work for the rotation function transfer tube that equal engines or motor are provided.At this point, fluid pump is for supplying needed for driving actuator
Working oil, usually using such as volume adjustable pump (variable displacement axial piston pump) energy
Enough volume adjustable hydraulic pumps that prominent capacity is adjusted.
Especially, the most widely used recently to be equipped with outside in a plurality of types of volume adjustable fluid pumps
The volume adjustable fluid pump of the inclination swash plate (swash plate) of shell inner inclination installation.In inclined disc type volume adjustable stream
Body pump in because from volume adjustable fluid pump spue working oil oil mass depend on swash plate gradient (angle of revolution or
Angle of inclination), it is therefore desirable to the structure being adjusted with the angle of inclination being ready for use on to swash plate.
But in existing volume adjustable Wobble plate pump, the structure that is adjusted for the angle of inclination to swash plate
It is more complicated.For example, it is desired to the individual driving unit that the angle of revolution of swash plate is adjusted is ready for use on, it is also necessary to be equipped with
Feedback mechanism for maintaining the angle of revolution state after changing, and therefore lead to the quantity and manufacturing cost of global facility
The problem of increase.
Formerly disclosed technical literature
Patent document
Korean Patent Laid the 10-2002-0090245th
Utility model content
Utility model aims to solve problem in the prior art as described above, can utilize and swash plate
The angle of inclination of swash plate is adjusted in the tilt adjusting section being in direct contact.
The another object of the utility model is, can remain oblique in the case where not being equipped with individual feedback mechanism
Angle of inclination state after the variation of disk.
The further object of the utility model is, can make baffle ring by the baffle ring of plate-like is adjacent in swash plate
It is rotated in the state of maintaining certain angle always.
To achieve the goals above, the utility model provides a kind of volume adjustable fluid pump (Variable capacity
Type fluid pump), its technical solution is that：
Including：Shell is formed with driving space in inside；Swash plate is located at the driving space and use can be with holder
The mode pivoted about is installed, and the angle of inclination of inclined surface can be adjusted；Cylinder block is installed on the driving
Space is simultaneously rotated under the action of drive shaft, extends to form multiple cylinders along the direction parallel with drive shaft in inside
Hole；Piston assembly is inserted into the inside of the cylinder-bore of the cylinder block at least partially, is revolved along the cylinder block
It moves linearly in the inside of the cylinder-bore while turning；Baffle ring is being connect with the piston assembly and by piston assembly
It is rotated together with along the piston assembly in the state of being adjacent into the inclined surface of swash plate；And tilt adjusting section, pass through institute
It states shell to pass in and out in the inside in the driving space, during being inserted into the driving space interior, utilizes one side
End pushes the bottom surface of the swash plate and the angle of inclination of swash plate is adjusted whereby.
By being applicable in the volume adjustable fluid pump of the utility model as described above, technology as described below can be realized
Effect：
In the present invention, tilt adjusting section due to swash plate directly against single component constitute.As mentioned above
Tilt adjusting section directly the angle of inclination of swash plate can be adjusted during disengaging, therefore can be used in swash plate
The structure that angle of inclination is adjusted tends to simplification, reduces number of components and packing engineering quantity, and further decrease system
Cause this.
In addition, in the present invention, it can be by making the side end of tilt adjusting section directly be contacted with swash plate
And swash plate is pushed, but be not fixed on swash plate.When tilt adjusting section retreats, swash plate will be in piston pressure
Under the action of hypsokinesis until be in contact with tilt adjusting section, in the process, angle of inclination will reduce.As described above,
In the utility model, because the inclination of swash plate can be increased or decreased in the state of tilt adjusting section not being connected on swash plate
Angle, therefore do not need to match and be ready for use on the labyrinth being directly or indirectly attached to tilt adjusting section and swash plate or use
In the feedback structure etc. for maintaining angle of inclination.Whereby, the overall structure of fluid pump can not only be made to further tend to simplification, and
And its durability can also be promoted whereby.
In addition, in the fluid pump for being applicable in the utility model because for by piston be adjacent to the baffle ring on swash plate be with
It is rotatably attached on swash plate, therefore can be in the state that the inclined surface with swash plate is adjacent to certain rotation angle
It is rotated.Whereby, it can prevent during the course of work guide ring in pump from being with other rotary shafts unrelated with basic rotary shaft
The phenomenon that heart is arbitrarily rotated or is tilted, but also the wear phenomenon occurred in above process can be prevented, and whereby
Promote its durability.
In addition, in the present invention, it is only necessary to which the globe joint being connected in piston is pressed into the baffle ring hole of baffle ring
In, you can complete the assembling between piston and baffle ring.Whereby, the complicated assembling between baffle ring and piston piston shoes can be omitted
Journey, and the number of components of baffle ring and piston piston shoes is reduced whereby.It is thus possible to enough reduce the manufacturing cost of fluid pump.
Description of the drawings
Fig. 1 is the strabismus that the composition of an embodiment of the volume adjustable fluid pump to being applicable in the utility model is illustrated
Figure；
Fig. 2 is the exploded perspective view that decomposition diagram is carried out to constituting the component of the embodiment in Fig. 1；
Fig. 3 be in order to the Inner Constitution to the shell in the illustrated components of Fig. 2 is illustrated and to cut a part
The oblique view that state is illustrated；
Fig. 4 is the exploded perspective view that decomposition diagram is carried out to the composition of the piston assembly in the illustrated components of Fig. 2；
Fig. 5 is the sectional view of the I-I' lines in Fig. 1；
Fig. 6 is the oblique view illustrated to removing the Inner Constitution after shell in Fig. 1；
Fig. 7 is the sectional view illustrated to adjusting the state after the angle of inclination of swash plate in Figure 5；
Fig. 8 is the oblique view illustrated to adjusting the state after the angle of inclination of swash plate in figure 6.
Reference sign in figure：
10 be the first shell
11 be the main body of the first shell
12 be driving space
13,13' is the first connectivity slot, the second connectivity slot
14 be blocking ring portion
15 be inner shell
17 be cap body
18a, 18b are the first valve port, duaspiracle mouth
19 be the first flange
30 be second housing
31 be the second flange
31' is matrix
32 be the second combined hole
33 be the first axis hole
33' is assembly hole
34 be holder
34' is rotary shaft
35 be swash plate
36 be inclined surface
37 is in conjunction with boss
38 be the lateral groove of swash plate
39 be swash plate hole
50 be cylinder block
51 be the main body of cylinder block
52 be the second axis hole
55 be cylinder-bore
55a is piston portion
55b is fluid flow portion
70 be piston assembly
71 be piston main body
72 be connector combined hole
72' is assembly protrusion
73 be globe joint
74 be roller ball
75 be Piston connecting portion
76 be pressurization part
77 be assembling recess
80 be baffle ring
81 be disk body
82 be baffle ring hole
83 be the centre bore of baffle ring
90 be drive shaft
91 be the main body of drive shaft
92 be the drive connection portion of drive shaft
93 be the cylinder interconnecting piece of drive shaft
100 be tilt adjusting section
101 be adjusting main body
105 be contact head
Specific implementation mode
The utility model is related to one kind to make drive shaft 90 rotate and by drive shaft 90 by using motor or engine etc.
Rotary force be converted into the translational motion of piston, to form the volume adjustable fluid pump of oil pressure or hydraulic pressure.Especially, at this
In utility model, the angle of inclination of swash plate 35 can be adjusted using tilt adjusting section 100 simple in structure.In addition, tiltedly
Disk 35 is fixed in a manner of non-rotatable, and baffle ring 80 can independently be rotated relative to swash plate 35 and be fixed in a rotatable way
Onto swash plate 35.Whereby, baffle ring 80 can be made to be rotated in the state of maintaining certain angle of inclination always, to avoid
Baffle ring 80 run-off the straight or shaking in rotary course.Next, by being carried out in detail to the specific configuration of the utility model
It is bright.
As shown in Figure 1, the agent structure of the utility model is made of shell 10,30.The shell 10,30 is generally cylindrical
Shape is simultaneously formed in the interior thereof driving space 12.The shell 10,30 can be considered as to be constituted by two, in the present embodiment, institute
Shell 10,30 is stated to be made of the first shell 10 and second housing 30.When the first shell 10 is mutually assembled with second housing 30,
Closed driving space 12 can be constituted inside it.Here, second housing 30 can be considered as to a lid.In fig. 2, scheme
The state that the first shell 10 is separated from each other with second housing 30 is shown.
First shell 10 drives space 12 as shown in figure 3, being formed in 11 inside of main body of first shell 10, and
The inside in driving space 12 is formed with connectivity slot.Connectivity slot can generally be divided into two parts, and connectivity slot can be divided into phase
The first connectivity slot 13 and the second connectivity slot 13' mutually detached.First connectivity slot, 13 and second connectivity slot 13' and follow-up explanation
Piston assembly 70 inlet and outlet connection.As the first valve port 18a of the part in multiple inlet and outlet and the first connectivity slot
13 connections, and the duaspiracle mouth 18b as a remaining part is connect with the second connectivity slot 13'.Whereby, in piston assembly 70
The fluid being squeezed out under effect can be discharged by the first connectivity slot 13 or the second connectivity slot 13'.
First connectivity slot 13 is connect with the first valve port 18a, and the second connectivity slot 13' is connect with duaspiracle mouth 18b.
As shown in Figure 1 to Figure 3, the first valve port 18a and duaspiracle mouth 18b are all opened to the lateral direction of fluid pump, the
One valve port 18a and duaspiracle mouth 18b can (fluid reservoir, scheme with such as executor (not shown) or fluid reservoir
Show) etc. connections.The first connectivity slot 13, the second connectivity slot 13' and the first valve port 18a valves connected to it of the explanation
Mouthful, quantity, position and the shape of duaspiracle mouth 18b be only an example, it can be changed.
Equipped with inner shell 15 and blocking ring portion 14 in the driving space 12 of the first shell 10.Inner shell 15 is pasted
It is tightened to the medial surface of the first shell 10, and stops that ring portion 14 is located at the most inner side in driving space 12, for the gas to subsequently illustrating
The edge of cylinder column 50 is stopped.Inner shell 15 and blocking ring portion 14 can be omitted, or are formed as with the first shell 10
One.
In the present embodiment, be formed as with the first shell 10 positioned at the cap body 17 of 10 end section of the first shell
One.Because first shell 10 is to carry out injection molding by using synthetic resin material and be made, therefore cap body
17 can be used as a part for the first shell 10 and be formed as one.Additionally it is possible to producing with the first shell 10 solely
It is assembled again after vertical cap body 17.
At the edge of first shell 10 equipped with the first flange 19.First flange 19 is in the first shell 10
Marginal portion protrudes to be formed, and the part assembled for the second flange 31 with second housing 30.To the first shell
10 with second housing 30 assembled when, the first flange 19 will be mutually adjacent to the second flange 31, and using in conjunction with apparatus (not
Diagram) when being combined to above-mentioned part, the assembly operation to the first shell 10 and second housing 30 can be completed.
As shown in Fig. 2, prominent in the second housing 30 form the second flange 31, and surround 31 breakthrough form of the second flange
At multiple second combined holes 32.Second combined hole 32 is identical as the first combined hole (not shown) of first flange 19
Position formed with identical quantity.Combine apparatus by the second combined hole 32 after, a part therein will be moved into the
One combined hole simultaneously assembles the two, for this purpose, can process to be formed in the medial surface of the first combined hole and the second combined hole 32
Screw thread.
The prominent matrix 31' for forming cylindrical shape, is formed with the first axis hole in matrix 31' in the second housing 30
33.First axis hole 33 be for the drive shaft 90 that subsequently illustrates by part.It is formed with holder in described matrix 31'
34, the holder 34 is made of a pair.The pair of holder 34 is located at the both sides of matrix 31', will be as subsequently illustrating
The rotation center of swash plate 35.Accompanying drawing number H represents rotating hole, is available for the rotary shaft 34' insertions for making swash plate 35 rotate.Attached drawing
Number 33' represents the assembly hole for assembling tilt adjusting section 100.
Swash plate 35 is assembled into the holder 34 of described matrix 31'.The swash plate 35 is assembled into described in a rotatable way
Holder 34, for this purpose, rotary shaft 34' is embedded in the lateral groove of the swash plate 35 after the rotating hole H by the holder 34
38.The rotary shaft 34' is constituted by two, is assembled separately a pair of brackets 34.Two rotary shaft 34' are imaginary positioned at one
On extended line and as the rotation center of swash plate 35.
It is formed with inclined surface 36 in the upper side of the swash plate 35.When swash plate 35 is rotated, the inclined surface 36
Angle of inclination will also change, and when the angle of inclination of swash plate 35 changes, relative rotation occurs relative to swash plate 35
Component, the mistake especially rotated along the inclined surface 36 of swash plate 35 in cylinder block 50, piston assembly 70 and baffle ring 80
Cheng Zhong, phase will recur variation.It, can be by follow-up although the angle of inclination of the swash plate 35 can be adjusted
The tilt adjusting section 100 of explanation is supported, and can't be pivoted about with drive shaft 90.Relative to angle of inclination quilt
During the piston assembly 70 of the progress relative rotation of fixed swash plate 35 is rotated around swash plate 35, its height will be made
Degree will change.
It especially is formed with inclined surface 36 in the lateral surface towards cylinder block 50 in the outer surface outstanding of the swash plate 35,
And it is formed with swash plate hole 39 in its center.The swash plate hole 39 be for the drive shaft 90 that subsequently illustrates by part.Although
The inclined surface 36 can because the tilted shape of swash plate 35 and with less to the prominent more part of cylinder block 50 and protrusion
Part, but still be made of continuous plane.
Although being to form the inclined surface 36 on the swash plate 35 in the present embodiment, can also use with it not
The same composition that the inclined surface 36 is formed on cylinder block 50.That is, because as long as cylinder block 50 is made to form phase with inclined surface 36
To inclined state, therefore can also the lateral surface of the cylinder block 50 opposite with the swash plate 35 be used to incline relative to ground
Oblique composition.
It is formed on the swash plate 35 in conjunction with boss 37.The combination boss 37 is protruded around swash plate hole 39 and is formed, will
The baffle ring 80 subsequently illustrated is fixed into rotatable state.Baffle ring 80 makes the prominent combination boss formed from the swash plate 35
In the case that 37 occur flexible deformation, it is assembled into conjunction on boss 37 in the form of being embedded in by force.Because of the combination boss
37 are integrally constituted with swash plate 35, therefore also can be by baffle ring 80 can revolve in the case where being not equipped with individual fixed appliance
The mode turned is fixed.It is further possible to individually be substituted in conjunction with utensil in conjunction with boss 37 by being equipped with.
It is formed with cylinder block 50 in the position opposite with the swash plate 35.The cylinder block 50 is assembled into driving space
12, it can be rotated relative to fixed shell 10,30 and swash plate 35.The cylinder block 50 is the effect in drive shaft 90
The lower component rotated, as shown in Fig. 2, generally cylindrical shape.It is centrally formed with the second axis hole in the cylinder block 50
52, the second axis hole 52 is embedded in for drive shaft 90.Second axis hole 52 is connect with the first axis hole 33.
It is formed with multiple cylinder-bores 55 in the main body 51 of the cylinder block 50.The cylinder-bore 55 is total for constituting piston
It is inserted at 70 piston main body 71.Piston main body 71 moves linearly along the cylinder-bore 55, and convection current in the process
Body is compressed or is sucked.The cylinder-bore 55 formed around the center along the cylinder block 50 it is multiple, and respectively for piston
Main body 71 is embedded in.
As shown in fig. 6, the cylinder-bore 55 is made of two different parts of diameter.Wherein, diameter is relatively large
Part be the piston portion 55a passed in and out for piston main body 71, and the relatively small part of diameter is for fluid is prominent or sucking
Fluid flow portion 55b.The first connectivity slot 13 and the second connectivity slot 13' connections of the fluid flow portion 55b and above description.
The shape or size of the piston portion 55a and fluid flow portion 55b can carry out various deformation.
Piston assembly 70 is formed between the cylinder block 50 and swash plate 35.The piston assembly 70 is made of multiple,
Its quantity is identical as the quantity of cylinder-bore 55 of cylinder block 50 of above description.The piston assembly 70 passes through in cylinder-bore 55
It passes in and out and fluid is compressed or is sucked.It is that medium is adjacent to the swash plate 35 that bright baffle ring 80 is continued after piston assembly 70
Inclined surface 36 on, and the phase change by means of being occurred during being rotated around inclined surface 36 pass in and out cylinder-bore
55 inside and outside simultaneously carries out straight line back and forth movement.
Next, by the structure of the piston assembly 70 is described in detail in conjunction with Fig. 4.The piston assembly 70 is big
It can be divided into piston main body 71, globe joint 73 and pressurization part 76 on causing.The piston main body 71 is in cylinder-bore 55
Portion carries out the part of straight line back and forth movement, using the composition of cylindrical shape.Connect respectively in the both-side ends of the piston main body 71
It is connected to the globe joint 73 moved together with piston main body 71 and pressurization part 76.It is recessed in the side end of the piston main body 71
Enter to be formed connector combined hole 72, and assembly protrusion 72' is then formed in the other side.Globe joint 73 in a rotatable way by
It is pressed into the connector combined hole 72, and pressurization part 76 is pressed into assembly protrusion 72'.
The globe joint 73 is for piston main body 71 and baffle ring 80 to be attached.The globe joint is with rotatable
Form is attached piston main body 71 and baffle ring 80.Specifically, it is located at the piston connection of the side of the globe joint 73
Portion 75 is rotatably connected in the piston main body 71 towards the part i.e. connector combined hole 72 in 55 outside of cylinder-bore
In, and the baffle ring interconnecting piece positioned at the other side is rotatably connected in the baffle ring hole 82 of the baffle ring 80.Whereby, ball
Shape connector 73 will be in can rotate freely a degree of state between baffle ring 80 and piston main body 71, therefore can keep off
Circle 80 made a relative move with piston assembly 70 during pair because of being spaced and mend caused by the inclined surface 36 of swash plate 35
It repays.
The Piston connecting portion 75 and baffle ring interconnecting piece of the globe joint 73 are roughly spherical shape, are pressed into respectively
In connector combined hole 72 and baffle ring hole 82.In addition, being formed with roller ball 74 in baffle ring interconnecting piece.The roller ball 74 is logical
Cross the part that the baffle ring 80 is adjacent on the inclined surface 36 of the swash plate 35.The roller ball 74 is used in piston assembly 70
The friction between globe joint 73 and the inclined surface 36 of swash plate 35 is reduced in rotary course.It is different from the present embodiment, the rolling
Ball 74 can also use the structure for independently constituting and being pressed into the globe joint 73.
In addition, the pressurization part 76 for constituting the piston assembly 70 is incorporated into piston main body 71 and the globe joint 73
In conjunction with part the other side, in the present embodiment, the assembling that is formed in the pressurization part 76 recess 77 will be pressed into
In the assembly protrusion 72' for stating bright piston main body 71.The pressurization part 76 is used for the cylinder-bore 55 in the cylinder block 50
In pressurize to fluid.The pressurization part 76 is substantially pushed to fluid in the moving process of piston assembly 70
Part, medial surface to piston portion 55a is adjacent in cylinder-bore 55, to strongly be pushed to fluid.When by water
It needs to be equipped with pressurization part 76 when using as fluid, but can then omit pressurization part 76 when using oils.
As shown in Fig. 2, baffle ring 80 is adjacent to onto the swash plate 35.The baffle ring 80 is keeping inclining with the swash plate 35
Inclined-plane 36 independently rotates while being adjacent to state relative to the swash plate 35.Equipped with automatic adjustment plate in the baffle ring 80
The disk body 81 of the plate-like of shape structure, for making 70 quilt of piston assembly by the globe joint 73 with the piston assembly 70 is connect
It is adjacent on the inclined surface 36 of swash plate 35.That is, the baffle ring 80 is by the globe joint 73 to piston assembly 70 stops
Globe joint 73 is prevented to be detached from from swash plate 35.
The baffle ring 80 is with rotatable combinations of states to the central part of the swash plate 35.Whereby, the baffle ring 80 can
It does not shake and is rotated with certain angle of inclination corresponding with the inclined surface 36 of the swash plate 35.That is, the gear
Circle 80 can be rotated in the state of 36 keeping parallelism of inclined surface with swash plate 35.Whereby, the work in pump can be prevented
The phenomenon that process guide ring 80 is arbitrarily rotated or is tilted centered on other rotary shafts unrelated with basic rotary shaft.
The baffle ring 80 is being assembled into the structure on the swash plate 35, the combination boss that the baffle ring 80 passes through swash plate
37 are assembled on swash plate 35.It is embedding during the combination boss 37 reverts to original state again after flexible deformation occurs
When entering to 83 edge of centre bore of the baffle ring 80, baffle ring 80 will be on rotatable combination of shape and state to swash plate 35.
Centered on the centre bore 83, multiple baffle ring holes 82 are circumferentially formed.The gear of the globe joint 73
Circle interconnecting piece will be embedded in the baffle ring hole 82.The baffle ring hole 82 penetrates through the formation of the baffle ring 80, when baffle ring interconnecting piece
When being embedded in the baffle ring hole 82, the roller ball 74 of baffle ring interconnecting piece by by baffle ring hole 82 and with the inclined surface of swash plate 35
36 are in contact.In figure 6, state as described above is shown.
Accompanying drawing number 90 represents drive shaft 90.In the drive shaft 90, it is located at the drive connection portion of 91 side of shaft body
92 will connect and receive rotary force with driving portions (not shown) such as motors, and the cylinder interconnecting piece 93 positioned at the other side will be with cylinder
Column 50 connects and the rotary force of driving portion is transmitted in cylinder block 50.As shown in Figure 1, being incorporated into fluid pump in drive shaft 90
In the state of, drive connection portion 92 will be in the state for being projected into 10,30 outside of shell.
Tilt adjusting section 100 is installed in the second housing 30.The tilt adjusting section 100 passes through second housing 30
The inside in the driving space 12 is passed in and out, during being inserted into driving 12 inside of space, side end will be to institute
The bottom surface for stating swash plate 35 is pushed, to which the angle of inclination of swash plate 35 be adjusted.That is, the tilt adjusting section 100 is logical
Cross the angle of inclination for being in direct contact and increasing or decreasing swash plate 35 with swash plate 35.
In the present embodiment, the tilt adjusting section 100 is assembled into the assembly hole 33' of the second housing 30, edge
It and is installed with the direction consistent in length of the drive shaft 90.In addition, the tilt adjusting section 100 can be by being screw-coupled to
In the assembly hole 33' for stating second housing 30, to by rotating to being adjusted towards the bottom surface of swash plate degree outstanding.
The tilt adjusting section 100 include the adjusting main body 101 being screwed with the second housing 30 and positioned at adjust
Save the contact head 105 of 101 end section of main body.It is formed with screw thread in adjusting main body 101 and realizes and second housing 30 whereby
Thread binding, in the present embodiment, the adjusting main body 101 use cylindrical.In addition, contact head 105 is substantially
Hemispherical shape carries out point contact with the bottom surface of the swash plate 35.But image as described above is only an example, it is described
Contact head 105 can also be deformed using a variety of different shapes.For example, contact head 105 can be and adjust 101 phase of main body
Same cylindrical.
In addition, although not shown, elastomeric element can be equipped in tilt adjusting section 100, to the elastomeric element because
When to be deformed by the external force passed over from the swash plate 35 so that the retrogressing of tilt adjusting section 100 is simultaneously right whereby
The angle of inclination of swash plate 35 is adjusted.Specifically, the tilt adjusting section 100 is not to be carried out with the second housing 30
It is screwed, but merely by second housing 30 or is installed in the driving space 12 of 30 inside of second housing, and profit
It is supported with elastomeric element.
Wherein, elastomeric element flexibly supports the tilt adjusting section 100 to the direction of swash plate 35.Whereby, when logical
Elastomeric element when swash plate 35 passes over stronger pressure is crossed to be compressed, and swash plate 35 will be natural centered on rotary shaft 34'
The direction that ground reduces to angle of inclination is rotated.In situations as mentioned above, user need not utilize tilt adjustment
Portion is directly adjusted the angle of inclination of swash plate 35.
At this point, the elastomeric element can be configured in the front side of tilt adjusting section 100, to make elastomeric element and swash plate
35 bottom surface is in direct contact.In situations as mentioned above, the angle of inclination of swash plate 35 can be kept automatic by elastomeric element
While changing, additionally it is possible to tilt adjusting section 100 and elastic portion by the operation to the tilt adjusting section 100
Part is adjusted to 35 direction of swash plate base altitude outstanding, to be set to the minimum cant of swash plate 35.
Alternatively, can also configure elastomeric element at the rear of tilt adjusting section 100, individual adjustment portion is recycled (not
Diagram) elastomeric element is supported.That is, configured according to the sequence of adjustment portion-tilt adjusting section 100- elastomeric elements,
In the case of as described above, when adjustment portion is engaged through the thread etc. modes are assembled into second housing 30 when, user can lead to
Cross the adjusting to adjustment portion and to the tilt adjusting section 100 and elastomeric element to 35 direction of swash plate base altitude outstanding into
Row is adjusted, to be set to the minimum cant of swash plate 35.
In addition, illustrating the tilt adjusting section 100 in the accompanying drawings in second housing 30 along the drive shaft 90
The state of length direction installation, but the tilt adjusting section 100 can also be installed in the side of the first shell 10.For example, institute
The side of first shell 10 can be mounted on simultaneously with the direction to intersect vertically with the drive shaft 90 by stating tilt adjusting section 100
To drive the direction in space 12 to pass in and out.In the process, inclination that can be by being contacted with the bottom surface of swash plate 35 to swash plate 35
Angle is adjusted.
In the present invention, the shell 10,30 and swash plate 35,80 energy of cylinder block 50, piston assembly 70 and baffle ring
It is enough to be all made using synthetic resin material.That is, above-mentioned component can carry out group after being manufactured by way of injection molding
Dress.Synthetic resin material is not only convenient for being molded, additionally it is possible to and enable all parts that flexible deformation to occur to a certain extent,
In order to more be readily accomplished the assembling operation by press mode.
Next, the process of the fluid pump work to being applicable in the utility model is illustrated.
As reference, the state that the angle of inclination of swash plate 35 is minimum state i.e. 0 ° is schemed in fig. 5 and fig.
Show, and the state that the angle of inclination of swash plate 35 is maximum rating i.e. 12 ° is shown in figures 7 and 8.
On the basis of Fig. 5, first, drive shaft 90 will rotate under the action of driving portion.When drive shaft 90 is to arrow
1. direction when being rotated, the cylinder block 50 being fixed in drive shaft 90 will also rotate together.Cylinder block 50 is by edge
It direction identical with drive shaft 90 to be rotated, 2. arrow has indicated the direction of rotation of cylinder block 50.At this point, cylinder block 50
Rotary shaft be drive shaft 90.
When cylinder block 50 rotates, the piston assembly 70 being inserted on cylinder block 50 will rotate together.Because living
The piston main body 71 of plug assembly 70 is inserted into inside the cylinder-bore 55 of cylinder block 50, therefore when the cylinder block 50 rotates,
Piston assembly 70 will also be driven and rotate together.The piston assembly 70 being respectively inserted into the multiple cylinder-bore 55
Rotation will be carried out at the same time.
In addition, when piston assembly 70 is rotated, the baffle ring 80 being connected in piston assembly 70 will also carry out together
Rotation.Because the globe joint 73 being provided in the piston assembly 70 is also connected while being connected in piston main body 71
It is connected in baffle ring 80, therefore can finally make piston assembly 70 that baffle ring 80 be driven to be rotated together.Each globe joint 73
Baffle ring interconnecting piece is pressed into rotatable state in the baffle ring hole 82 of the baffle ring 80.Because baffle ring 80 can be relative to oblique
Disk 35 carries out independent rotation, therefore will be rotated relative to fixed swash plate 35.3. arrow represents the rotation of baffle ring 80
Direction.
When baffle ring 80 is rotated, baffle ring 80 will be in the state of maintaining the angle parallel with the inclined surface 36 of swash plate 35
It is rotated.This is because baffle ring 80 can maintain to be adjacent to the shape on the swash plate 35 by the rotary joint of swash plate 35
State, as a result, the baffle ring 80 can not shake in rotary course and with right with the inclined surface 36 of the swash plate 35
The certain angle of inclination answered is rotated.Whereby, can prevent the course of work guide ring 80 in pump with basic rotary shaft
The phenomenon that arbitrarily being rotated or tilted centered on other unrelated rotary shafts.
At this point, the movement of the piston assembly 70 rotated together with baffle ring 80 can be by the influence of inclined surface 36, such as
Fig. 5 and it is shown in fig. 6 in the case of because swash plate 35 is in parallel state and does not tilt, therefore piston assembly 70 will not
Carry out elevating movement (arrow 4. direction).That is, in the state of as shown in figs.5 and 6, it is applicable in the fluid pump of the utility model
Pumping function will not be executed.
But under heeling condition as shown in Figure 7 and Figure 8, because the baffle ring 80 can be with the inclined surface of swash plate 35
36 maintain inclined state and are rotated together, therefore the piston assembly 70 rotated together with baffle ring 80 will pass through inclination
Face 36 carries out elevating movement.
It, will be along when being moved to the right while rotating positioned at the piston assembly 70 in left side originally on the basis of Fig. 7
Inclined surface 36 rises to relatively high position movement.As a result, the piston main body 71 of piston assembly 70 will be to cylinder block 55
Medial movement.Next when continuing rotation, piston assembly 70 will be moved along inclined surface 36 to relatively low position again
It is dynamic to decline.4. arrow represents the lifting direction of piston assembly 70.
In addition, in the lifting process of piston assembly 70, piston assembly 70 will carry out compressing/extensional motion and in this process
In fluid is compressed or is sucked.The fluid being present in inside cylinder-bore 55 is pressed during piston assembly 70 rises
Contracting, and spued by the first valve port 18a via the first connectivity slot 13.At the same time, the piston assembly 70 of decline will pass through
Two valve port 18b draw fluid into the second connectivity slot 13' and go out, and preparation compresses it in next stroke.
By the cylinder block 50, piston assembly 70 and the rotation of baffle ring 80, a series of actions as described above will be continuously performed, and
It is repeatedly completed sucking and discharge stroke whereby.
At this point, according to the direction of rotation of drive shaft 90, the first valve port 18a on shell 10,30 or duaspiracle mouth 18b
Entrance or the outlet of fluid can be converted to.That is, on the basis of specific piston assembly 70, if when cylinder block 50 is along up time
The needle direction progress of the piston assembly 70 compression movement when being rotated, then when cylinder block 50 is rotated counterclockwise
Shi Suoshu piston assemblies 70 will carry out extensional motion.Whereby, the first valve port 18a and duaspiracle mouth 18b can be made to spit
Go out on the direction of fluid or sucking fluid and is converted.This is under the structure that swash plate 35 is fixed and cylinder block 50 rotates
The advantages of realization, can by the direction of rotation to drive shaft 90 is converted simply implement hydraulic pressure formed direction turn
It changes.
In addition, equipped with roller ball 74 in the baffle ring interconnecting piece of globe joint 73, roller ball 74 is adjacent to swash plate 35
Inclined surface 36 on.The roller ball 74 in the rotary course of piston assembly 70 for reducing globe joint 73 and swash plate 35
Friction between inclined surface 36.
Next, the mistake to the angle of inclination of swash plate 35 to be converted into state as shown in Figure 7 from state as shown in Figure 5
Journey illustrates.First, operating personnel can lift swash plate 35 by pushing tilt adjusting section 100 to the direction of swash plate 35.
That is, when rotating tilt adjusting section 100 along the directions arrow A in Fig. 6, tilt adjusting section 100 will be along the spiral shell of assembly hole 33'
Line carries out linear movement and the directions B into Fig. 8 rise.Whereby, the contact head 105 of the tilt adjusting section 100 will lift tiltedly
The bottom surface of disk 35, and swash plate 35 will be pivoted about with the rotary shaft 34' of holder 34 and its angle of inclination is increased.
At this point, user can be adjusted by the degree of rotation to tilt adjusting section 100, and accurately by swash plate 35
Angle of inclination be adjusted to required state.For this purpose, tilt adjusting section 100 when by the way that tilt adjusting section 100 rotating a circle
It is adjusted to certain degree to the direction distance outstanding of swash plate 35, it can be by means of the number of revolutions pair of tilt adjusting section 100
The variation degree at the angle of inclination of swash plate 35 is adjusted.As described above, in the present embodiment, tilt adjusting section 100 by with it is oblique
Disk 35 directly against single component constitute.Tilt adjusting section 100 as described above can be during disengaging directly to swash plate
35 angle of inclination is adjusted, therefore can simplify the structure being adjusted for the angle of inclination to swash plate 35.
In contrast, the process at the angle of inclination for reducing swash plate 35 is opposite with the sequence of the above process.When to opposite
Direction when rotating tilt adjusting section 100, tilt adjusting section 100 will be gradually distance from swash plate 35 and makes the angle of inclination of swash plate 35
It is gradually reduced.At this point, although side end, that is, contact head 105 of tilt adjusting section 100 is remained able to by keeping and swash plate 35
Be in direct contact state and continue to press on swash plate 35, but because be not fastened or connected on swash plate 35, therefore tilt
Adjustment portion 100 can't direct pull swash plate 35 so that it is rotated.
When tilt adjusting section 100 retreats, swash plate 35 will naturally move under the effect of the pressure of piston assembly 70
Until being in contact with tilt adjusting section 100, and reduce its angle of inclination in the process.That is, becoming from state as shown in Figure 7
State more as shown in Figure 5.As described above, not needing to tilt adjusting section 100 being directly connected in the present embodiment or consolidate
Determine onto swash plate 35, can also increased or decrease the angle of inclination of swash plate 35.Whereby, it need not match and be ready for use on tilt adjusting section
100 labyrinths being directly or indirectly connected on swash plate 35 or feedback structure etc. for maintaining its angle of inclination.
Unlike this, when in the tilt adjusting section 100 equipped with elastomeric element, user is not needed directly to tilting
Adjustment portion 100 is adjusted, but the angle of inclination of swash plate 35 can be adjusted naturally using elastomeric element.That is, working as
Elastomeric element will be compressed when passing over stronger pressure by swash plate 35, and swash plate 35 will be with the rotary shaft of the holder 34
The direction reduced naturally to angle of inclination centered on 34' is rotated, to realize the adjusting to its angle of inclination.
In addition, as described above, when elastomeric element is supported by individual adjustment portion again, user can be by adjusting
The adjusting in portion and the tilt adjusting section 100 and elastomeric element are adjusted to 35 direction of swash plate base altitude outstanding,
To be set to the minimum cant of swash plate 35.
Obviously, those skilled in the art can carry out various changes and deformation to the utility model, without departing from this reality
With novel spirit and scope.In this way, if these modifications of the utility model belong to the utility model claims and its same
Etc. within the scope of technologies, then the utility model is also intended to comprising including these changes and deformation.
Claims (10)
1. a kind of volume adjustable fluid pump, which is characterized in that including：
Shell is formed with driving space in inside；
Swash plate positioned at the driving space and is used and can be installed in such a way that holder pivots about, can be to tilting
The angle of inclination in face is adjusted；
Cylinder block is installed on the driving space and is rotated under the action of drive shaft, in inside along flat with drive shaft
Capable direction extends to form multiple cylinder-bores；
Piston assembly is inserted into the inside of the cylinder-bore of the cylinder block at least partially, is carried out along the cylinder block
It moves linearly in the inside of the cylinder-bore while rotation；
Baffle ring, along institute in the state of being connect with the piston assembly and piston assembly is adjacent in the inclined surface to swash plate
Piston assembly is stated to rotate together with；And
Tilt adjusting section is passed in and out in the inside in the driving space by the shell, is being inserted into the driving space
During portion, pushes the bottom surface of the swash plate using one side end and the angle of inclination of swash plate is adjusted whereby.
2. volume adjustable fluid pump according to claim 1, which is characterized in that the swash plate is cut with scissors in a rotatable way
It is connected in the holder on the shell, the tilt adjusting section is from quilt on the position that the rotation center of the swash plate is detached from
It is assembled into the shell, to which the angle of inclination of the swash plate be adjusted during disengaging.
3. volume adjustable fluid pump according to claim 1, which is characterized in that the tilt adjusting section is screwed
To the shell and the bottom surface degree outstanding by rotating opposite swash plate is adjusted.
4. volume adjustable fluid pump according to claim 1, which is characterized in that equipped with bullet in the tilt adjusting section
Property component, when the elastomeric element because while being deformed by the external force passed over from the swash plate makes tilt adjustment
Portion retreats and the angle of inclination of swash plate is adjusted whereby.
5. volume adjustable fluid pump according to any one of claims 1 to 4, which is characterized in that the baffle ring is combined
To the swash plate, and keeping independently rotating relative to the swash plate while being adjacent to state with inclined surface.
6. volume adjustable fluid pump according to claim 5, which is characterized in that the baffle ring makes from the swash plate
With in rotatable combinations of states to the swash plate while the prominent combination boss generation flexible deformation formed.
7. volume adjustable fluid pump according to claim 6, which is characterized in that in the side end of the piston assembly
Globe joint is formed, the baffle ring is connect using disc shaped and with the globe joint of the piston assembly, makes piston assembly
As the piston assembly is integrally rotated in the state of being adjacent to onto the inclined surface of swash plate.
8. volume adjustable fluid pump according to claim 7, which is characterized in that the baffle ring is by rotary joint with can
The mode of rotation is attached to the central part of the swash plate, and with certain angle of inclination corresponding with the inclined surface of the swash plate into
Row rotation.
9. volume adjustable fluid pump according to claim 8, which is characterized in that the baffle ring is with certain thickness
Disc shaped, be formed centrally within for the drive shaft by while the centre bore that is embedded in for the rotary joint, with described
Multiple baffle ring holes for globe joint indentation are circumferentially formed centered on centre bore.
10. volume adjustable fluid pump according to claim 9, which is characterized in that the piston assembly, including：
Piston main body is inserted into the cylinder-bore of the cylinder block；And
Globe joint, side is rotatably connected to towards the part on the outside of cylinder-bore in the piston main body, another
Side is connected to the baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820491488.6U CN208073692U (en) | 2018-04-09 | 2018-04-09 | Volume adjustable fluid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820491488.6U CN208073692U (en) | 2018-04-09 | 2018-04-09 | Volume adjustable fluid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208073692U true CN208073692U (en) | 2018-11-09 |
Family
ID=64043882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820491488.6U Active CN208073692U (en) | 2018-04-09 | 2018-04-09 | Volume adjustable fluid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208073692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361165A (en) * | 2018-04-09 | 2018-08-03 | 李涌权 | Volume adjustable fluid pump |
-
2018
- 2018-04-09 CN CN201820491488.6U patent/CN208073692U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361165A (en) * | 2018-04-09 | 2018-08-03 | 李涌权 | Volume adjustable fluid pump |
| WO2019196389A1 (en) * | 2018-04-09 | 2019-10-17 | 上海海压特智能科技有限公司 | Variable displacement pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191025 Address after: Room 105, building 3, No. 1690, Cailun Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: Shanghai Hai special Intelligent Technology Co., Ltd. Address before: No. 9104-2002, 24th Street, Yangping Road, yongdengpu District, Shouer special city Patentee before: Li Yongquan |
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| TR01 | Transfer of patent right |