CN108757440A - A kind of fixing bearing component for gear pump - Google Patents
A kind of fixing bearing component for gear pump Download PDFInfo
- Publication number
- CN108757440A CN108757440A CN201810516855.8A CN201810516855A CN108757440A CN 108757440 A CN108757440 A CN 108757440A CN 201810516855 A CN201810516855 A CN 201810516855A CN 108757440 A CN108757440 A CN 108757440A
- Authority
- CN
- China
- Prior art keywords
- gear pump
- sealing ring
- bearing
- bearing component
- fixing bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a kind of fixing bearing component for gear pump, including ontology, ontology includes that two side walls are bonded the bearing race being assembled together, and the side that two bearing races fit is planar；On the upper surface of ontology, it is provided with groove around the edge of bearing race, sealing ring is placed in groove, the shapes and sizes of sealing ring are consistent with groove.This is used for the fixing bearing component good seal performance of gear pump, is not easy to reveal.
Description
Technical field
The invention belongs to fluid machinery manufacturing technology fields, and in particular to a kind of fixing bearing component for gear pump.
Background technology
The gear pump of usual high pressure is made of pump case, gear, fixing bearing component, floating bearing component, gear shaft
Assembly in fixing bearing endoporus and in fixing bearing there are minim gap, fixing bearing outer circle loaded in shell and with shell it
Between there are minim gap, the high pressure chest in the gap unicom pump, while for the ease of processing, fixing bearing component is usually by two
The bearing of a non-full-circle spray pattern is composed, and this structure results in the area of low pressure of high-pressure area and inside on the outside of fixing bearing
Between be difficult to be sealed design, easily cause internal leakage, influence the efficiency of gear pump under high pressure.
Invention content
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, provide a kind of sealing performance
Well, it is not easy the fixing bearing component for gear pump revealed.
In order to solve the above technical problems, the technical solution adopted by the present invention is, a kind of fixing bearing group for gear pump
Part, including ontology, ontology include that two side walls are bonded the bearing race being assembled together, and the side that two bearing races fit is flat
Planar；On the upper surface of ontology, it is provided with groove around the edge of bearing race, sealing ring, the shape of sealing ring are placed in groove
It is consistent with size with groove.
Further, the shape of the vertical section of the sealing ring is：Bottom is rectangle, and half above rectangle
Circular protrusions.
Further, which is located at the medium position above rectangle.
Further, in groove, two bearing races are opened up at interconnection there are one semicircle orifice, when two bearings
When circle fits together, corresponding semicircle orifice forms a circular mounting hole；The position that hole is relatively fixed on sealing ring is all provided with
For blocking the cylindricality lug being put in mounting hole there are one setting.
Further, which is detachably connected by attachment device, and can be relatively moved in the axial direction；Connection
Device includes an annular connecting hole being opened in the plane of each bearing race, further includes positioning pin, and the both ends of positioning pin clamp
In being correspondingly connected with hole；Positioning pin is fixed radially, can there is displacement movement in the axial direction, to drive corresponding bearing race to exist
It is relatively moved in axial direction, same plane is fully located to adjust two surfaces of the same side of two bearing races.
Further, the annular upper and lower ends of the connecting hole are the identical semicircle of diameter.
Further, which is cylindric, and the diameter of cylinder is consistent with the width of the rectangle part of connecting hole.With
It is set to be fixed in radial direction.
The invention also discloses a kind of above-mentioned sealing rings, and the large semi-circular being correspondingly connected with by two ends is at two big
The junction of semicircle is used to block the cylindricality lug being put in mounting hole there are one being respectively provided with；The shape of its vertical section is that bottom is long
It is rectangular, it is semi-cylindrical hill above rectangle.
A kind of fixing bearing component for gear pump of the invention has the following advantages that：1, lug is inserted into mounting hole,
When gear pump is installed, cover board will not be caused to the extrusion and displacement of sealing ring, prevent fixing bearing from being destroyed with side edge thereof extruding close
Seal.2 keep sealing ring installation site, prevent under non-homogeneous stress, and vibration when bearing race works causes sealing ring
Displacement.3. sealing ring bottom rectangle structure contributes in the fixed and positioned of irregular shape lower seal, top semicircle
The reason of shape structure is in the case where realizing sealing, and the screen resilience of sealed ring deformation cannot be excessive, influences fixing bearing component
With being bonded for cover board.4. assembly after, eliminate two connection hole machined when site error influence.5. turn timing, can be with axis
To the position of adjustment bearing race, two faces of two bearing race the same ends is made to be fully located at same plane.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of fixing bearing component for gear pump of the invention；
Fig. 2 is the structural schematic diagram that two bearing races are equipped in the present invention；
Fig. 3 is the sectional side elevation of sealing ring in the present invention；
Fig. 4 is the schematic diagram of middle (center) bearing circle planar section of the present invention.
Wherein：1. bearing race；2. groove；3. semicircle orifice；4. mounting hole；5. sealing ring；5-1. rectangle；5-2. semicircle
Protrusion；6. lug；7. connecting hole；8. positioning pin.
Specific implementation mode
A kind of fixing bearing component for gear pump of the invention, as shown in Figure 1, including ontology, ontology includes two sides
Wall is bonded the bearing race 1 being assembled together, and the side that two bearing races 1 fit is planar；On the upper surface of ontology, surround
The edge of bearing race 1 is provided with groove 2, and sealing ring 5 is placed in groove 2, and the shapes and sizes of sealing ring 5 are consistent with groove 2.
Shape is as follows：The large semi-circular being correspondingly connected with by two ends at.Its material can choose fluorine according to dielectric property and temperature characterisitic
The multiple materials such as rubber, fluorine silicone rubber, nitrile rubber.
As shown in Figure 2, Figure 3 and Figure 4, the shape of the vertical section of sealing ring 5 is：Bottom is rectangle 5-1, and positioned at length
Semi-cylindrical hill 5-2 above rectangular 5-1.Raised 5-2 is located at the centre position above rectangle 5-1.
To realize the assembly of bearing race 1 and groove 2, in groove 2, two bearing races 1 offer at interconnection
One semicircle orifice 3, when two bearing races 1 fit together, corresponding semicircle orifice 3 forms a circular mounting hole 4；Sealing
The position that hole 4 is relatively fixed on circle 5 is respectively provided with that there are one for blocking the cylindricality lug 6 being put in mounting hole 4.When Product Assembly,
Sealing ring 5 is positioned in groove 2, and two lugs 6 are inserted into corresponding mounting hole 4.It also needs to using cover board from upper cap pressure,
Compress entire sealing ring 5.
Wherein, two bearing races 1 are detachably connected by attachment device, and can be relatively moved in the axial direction；Attachment device
An annular connecting hole 7 including being opened in the plane of each bearing race 1, further includes positioning pin 8, and the both ends of positioning pin 8 clamp
In being correspondingly connected with hole 7；Positioning pin 8 is fixed radially, can there is displacement movement in the axial direction, to drive corresponding bearing race
1 relatively moves in the axial direction, and same plane is fully located to adjust two surfaces of the same side of two bearing races 1.Positioning pin 8
To be cylindric, the diameter of cylinder is consistent with the width of the rectangle part of connecting hole 7.So that it is fixed in radial direction.Connection
The upper and lower ends in hole 7 are the identical semicircle of diameter.According to gear pump operation principle, it is desirable that two of composition fixing bearing component are right
The fixing bearing of title is full symmetric in radial directions, but has the function of in the axial direction adjustable up and down.Two in the present invention
A bearing race 1 is detachably connected by attachment device, and can be relatively moved in the axial direction；Cover board inner wall fits in the table of ontology
Face, internal face have very high required precision, flatness error to be no more than 5/1000ths.When installation, two bearing races 1 pass through positioning
Pin 8 can move in the axial direction so that two surfaces of two 1 the same ends of bearing race tightly fit in cover board internal face.It is prominent
Ear 6 is inserted into mounting hole 4, when gear pump is installed, cover board will not be caused to prevent fixing bearing to the extrusion and displacement of sealing ring 5
It is squeezed with side edge thereof and destroys cushion rubber.And the installation site for also keeping sealing ring 5, prevents under non-homogeneous stress, Gu
Vibration when determining bearing working causes its displacement.
For example, a diameter of 2mm of connecting hole 7, centre-to-centre spacing 0.5mm designs, when installation, with a diameter 2mm in connecting hole 7
Cylindrical positioning pins 8 connect and be adjacent to.Since the structure of connecting hole 7 is identical with 8 diameter of positioning pin in the direction of the width, all it is
2mm, therefore the fixing bearing component assembled is fixed in radial directions by positioning pin 8, and it is in the axial direction fixing axle
7 width of connecting hole held is more than 8 diameter of positioning pin, and therefore, two fixing bearing circles 1 can have axially adjustable with relative displacement
Function.To realize lean and correct assembly, then the centre-to-centre spacing of two semicircles is more than the mismachining tolerance of the position of two connecting holes 7.
The invention also discloses a kind of above-mentioned sealing rings, and the large semi-circular being correspondingly connected with by two ends is at two big
The junction of semicircle is used to block the cylindricality lug 6 being put in mounting hole 4 there are one being respectively provided with；The shape of its vertical section is that bottom is
The top rectangle 5-1, rectangle 5-1 is semi-cylindrical hill 5-2.Bottom is rectangle 5-1, is contributed to close under irregular shape
Seal 5 it is fixed and positioned.Top is semi-cylindrical hill 5-2, is ensured in the case where realizing sealing, and what sealing ring 5 deformed returns
Elastic force will not be excessive, does not influence being bonded for fixing bearing component and cover board.
Claims (8)
1. a kind of fixing bearing component for gear pump, which is characterized in that including ontology, the ontology includes two side walls patch
The bearing race (1) being assembled together is closed, the side that described two bearing races (1) fit is planar；The upper table of the ontology
On face, it is provided with groove (2) around the edge of bearing race (1), sealing ring (5), the sealing ring are placed in the groove (2)
(5) shapes and sizes are consistent with groove (2).
2. a kind of fixing bearing component for gear pump according to claim 1, which is characterized in that the sealing ring
(5) shape of vertical section is：Bottom is rectangle (5-1), and the semi-cylindrical hill (5- above rectangle (5-1)
2)。
3. a kind of fixing bearing component for gear pump according to claim 2, which is characterized in that the protrusion (5-
2) medium position being located above rectangle (5-1).
4. a kind of fixing bearing component for gear pump according to claim 1,2 or 3, which is characterized in that described
In groove (2), two bearing races (1) open up that there are one semicircle orifices (3) at interconnection, when two bearing races (1)
When fitting together, corresponding semicircle orifice (3) forms a circular mounting hole (4)；It is relatively fixed hole on the sealing ring (5)
(4) position is used to block the cylindricality lug (6) being put in mounting hole (4) there are one being respectively provided with.
5. a kind of fixing bearing component for gear pump according to claim 1,2 or 3, which is characterized in that two institutes
It states bearing race (1) to be detachably connected by attachment device, and can relatively move in the axial direction；The attachment device includes being opened in
An annular connecting hole (7) in the plane of each bearing race (1), further includes positioning pin (8), the both ends card of the positioning pin (8)
Mounted in being correspondingly connected in hole (7)；The positioning pin (8) is fixed radially, can there is displacement movement in the axial direction, with drive pair
The bearing race (1) answered relatively moves in the axial direction, is fully located at together with adjusting two surfaces of the same side of two bearing races (1)
One plane.
6. a kind of fixing bearing component for gear pump according to claim 5, which is characterized in that the connecting hole
(7) upper and lower ends are the identical semicircle of diameter.
7. a kind of fixing bearing component for gear pump according to claim 6, which is characterized in that positioning pin (8) is
Cylindric, the diameter of cylinder is consistent with the width of rectangle part of connecting hole (7).So that it is fixed in radial direction.
8. a kind of sealing ring, which is characterized in that the large semi-circular being correspondingly connected with by two ends is at the junction of two large semicircles
For blocking the cylindricality lug (6) being put in mounting hole (4) there are one being respectively provided with；The shape of its vertical section is that bottom is rectangle
(5-1), rectangle (5-1) top are semi-cylindrical hill (5-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810516855.8A CN108757440B (en) | 2018-05-25 | 2018-05-25 | Fixed bearing assembly for gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810516855.8A CN108757440B (en) | 2018-05-25 | 2018-05-25 | Fixed bearing assembly for gear pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108757440A true CN108757440A (en) | 2018-11-06 |
| CN108757440B CN108757440B (en) | 2020-06-30 |
Family
ID=64005877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810516855.8A Active CN108757440B (en) | 2018-05-25 | 2018-05-25 | Fixed bearing assembly for gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757440B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259818A (en) * | 2019-07-29 | 2019-09-20 | 四川航天烽火伺服控制技术有限公司 | A kind of gear pump and its bearing assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0925883A (en) * | 1995-07-10 | 1997-01-28 | Shimadzu Corp | Gear pump or motor |
| JP2001336483A (en) * | 2000-05-29 | 2001-12-07 | Shin Meiwa Ind Co Ltd | Gear pump or gear motor |
| CN202833122U (en) * | 2012-07-31 | 2013-03-27 | 东莞市神煜机械有限公司 | Single-action gear pump |
| CN203189262U (en) * | 2013-03-15 | 2013-09-11 | 浙江恒威电子科技有限公司 | Gear pump for excavator |
| CN205207163U (en) * | 2015-11-25 | 2016-05-04 | 徐州科源液压股份有限公司 | Adopt high -pressure gear pump of new construction axle sleeve |
| CN207145223U (en) * | 2017-08-17 | 2018-03-27 | 合肥力威汽车油泵有限公司 | A kind of small impact gear-type oil pump |
-
2018
- 2018-05-25 CN CN201810516855.8A patent/CN108757440B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0925883A (en) * | 1995-07-10 | 1997-01-28 | Shimadzu Corp | Gear pump or motor |
| JP2001336483A (en) * | 2000-05-29 | 2001-12-07 | Shin Meiwa Ind Co Ltd | Gear pump or gear motor |
| CN202833122U (en) * | 2012-07-31 | 2013-03-27 | 东莞市神煜机械有限公司 | Single-action gear pump |
| CN203189262U (en) * | 2013-03-15 | 2013-09-11 | 浙江恒威电子科技有限公司 | Gear pump for excavator |
| CN205207163U (en) * | 2015-11-25 | 2016-05-04 | 徐州科源液压股份有限公司 | Adopt high -pressure gear pump of new construction axle sleeve |
| CN207145223U (en) * | 2017-08-17 | 2018-03-27 | 合肥力威汽车油泵有限公司 | A kind of small impact gear-type oil pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259818A (en) * | 2019-07-29 | 2019-09-20 | 四川航天烽火伺服控制技术有限公司 | A kind of gear pump and its bearing assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108757440B (en) | 2020-06-30 |
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