CN203627219U - Gap filling component and internal meshing gear pump - Google Patents
Gap filling component and internal meshing gear pump Download PDFInfo
- Publication number
- CN203627219U CN203627219U CN201320666137.1U CN201320666137U CN203627219U CN 203627219 U CN203627219 U CN 203627219U CN 201320666137 U CN201320666137 U CN 201320666137U CN 203627219 U CN203627219 U CN 203627219U
- Authority
- CN
- China
- Prior art keywords
- calking
- gap filling
- positive
- shimming assembly
- bluff bit
- 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.)
- Expired - Lifetime
Links
- 230000000994 depressogenic effect Effects 0.000 claims description 15
- 239000012634 fragment Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Abstract
The utility model discloses a gap filling component which comprises a main gap filling sheet and an auxiliary gap filling sheet, wherein a sunken part for mounting the auxiliary gap filling sheet is formed in the upper surface of one end of the main gap filling sheet; at least one positioning slot is formed in the sunken part; a positioning convex part matched with each positioning slot is arranged on the auxiliary gap filling sheet; the auxiliary gap filling sheet is stacked on the sunken part, and each convex part is arranged in each positioning slot. The utility model also discloses an internal meshing gear pump. The utility model has the advantages that the gap filling component consists of three independent components, namely the main gap filling sheet, the auxiliary gap filling sheet and a top block, which are not fixedly connected and are flexibly mounted; furthermore, the gap filling component is high in sealing property and pressure retaining performance; moreover, the manufacturing cost is effectively lowered; the internal meshing gear pump applying the gap filling component has the advantages of stability, reliability, low manufacturing cost, long service life and the like.
Description
[technical field]
The utility model relates to extremely accessory field of crescent gear pump, especially a kind of shimming assembly and crescent gear pump.
[background technique]
Crescent gear pump has without entrap phenomenon, carries steadily, efficiency is high, noise is little and the advantage such as long service life.Be widely used in Newtonian liquid or non Newtonian liquid in the industries such as transfer oil, chemical industry, coating, dyestuff, food, grease, medicine; But carry the kind lightweight, volatile liquid of liquid until heavy, thickness, the large medium of viscosity such as semisolid liquid even, its applicable range of viscosities can reach 0.2-1000000cp.
Existing crescent gear pump separates high and low pressure chamber with movable swing link, and radially forming pressure compensation, make to form several gapless sealings between interior external tooth tooth top and swing link, axially moving compensating disc guarantees the excellent sealing of axial clearance, and the internal leakage of this pump is minimized.Although the crescent gear pump of this structure has excellent sealing effect, internal leakage or inevitable.
Existing improvement structure, although good sealing effect has flexible perisporium not wear-resistant, working life is short, thereby affects whole crescent gear pump working life, this is that user is never receptible.In addition, also can have the problem of the resonance of floating, stability is poor.Therefore, be necessary existing crescent gear pump to improve.
[model utility content]
The purpose of this utility model is to overcome the deficiency that above-described prior art exists, provide that a kind of pressurize is good, combination flexibly, manufacture easy shimming assembly.
Another object of the present utility model is to provide a kind of reliable and stable, long service life and the good crescent gear pump of pressurize.
For achieving the above object, the technical solution of the utility model is: shimming assembly, comprise calking positive and calking bluff bit, described calking positive one end upper surface is provided for installing the depressed part of calking bluff bit, at described depressed part, a minimum locating slot is set, described calking bluff bit is provided with the positioning convex portion matching with described locating slot, and described calking bluff bit is stacked on depressed part, and lug boss is placed in locating slot.Described calking bluff bit can lug boss be that axle rotates and opens or upwards expand and open, and calking bluff bit is with calking positive the independent compound mode not being fixedly connected with each other, more flexible, and better tightness.
Described calking positive and calking bluff bit mounting end arrange an overhead piece.
A minimum groove is set, for make calking positive and calking bluff bit mutually open by pressure, to play the pressurize effect of positive confinement in the depressed part of described calking positive; In described groove, shell fragment is set.
In described groove, be provided with pole.
In described groove in the depressed part of described calking positive, a minimum sidewall is the structure of facing directly that reduces pole friction, makes pole not upspring affecting by sidewall and struts described calking bluff bit, and sealing and pressure maintaining performance are better.
The sidewall of described groove for respect to calking positive for being obliquely installed, be conducive to pole pushing tow calking bluff bit under the effect of shell fragment.
Crescent gear pump, comprise that a gear ring for interior engagement, small gear engaging with the part tooth portion of described gear ring, one install the gear ring of described interior engagement and the pump housing of small gear, between the top circle portion of described gear ring and small gear, form an annular space narrowing gradually, in described annular space, be provided with described shimming assembly.
Compared with prior art, the utility model has the following advantages: shimming assembly by three of calking positive, calking bluff bit and overhead pieces independently component combination become, be not fixedly connected with each other, flexible for installation, and sealing and pressure maintaining performance are better, and fabricating cost is effectively reduced in addition; That the crescent gear pump of applying above-mentioned shimming assembly has is reliable and stable, fabricating cost is low, the advantages such as long service life.
[accompanying drawing explanation]
Fig. 1 is the utility model shimming assembly broken section structural drawing;
Fig. 2 is the sectional view of the calking positive of the utility model shimming assembly;
Fig. 3 be the utility model shimming assembly the sectional view of calking bluff bit;
Fig. 4 is the utility model shimming assembly expansion open configuration schematic diagram;
Fig. 5 is the utility model shimming assembly rotation open configuration schematic diagram;
Fig. 6 is the utility model shimming assembly isometric front view;
Fig. 7 is the utility model shimming assembly rear isometric view;
Fig. 8 is the main TV structure schematic diagram of the utility model crescent gear pump;
Fig. 9 is the utility model crescent gear pump A-A portion sectional view;
Figure 10 is the sectional view of the utility model shimming assembly embodiment 2 calking positive;
Figure 11 is the utility model shimming assembly embodiment 2 broken section structural drawing;
Figure 12 is the utility model shimming assembly embodiment 2 isometric front view;
Figure 13 is main TV structure schematic diagram of the utility model crescent gear pump embodiment 2.
[embodiment]
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Shimming assembly, as shown in Fig. 1-3 and Fig. 6-7, comprise calking positive 1 and calking bluff bit 2, described calking positive 1 one end upper surface is provided for installing the depressed part 13 of calking bluff bit 2, at described depressed part 13, a minimum locating slot 11 is set, described calking bluff bit 2 is provided with the positioning convex portion 21 matching with described locating slot 11, and described calking bluff bit 2 is stacked on depressed part 13, and lug boss 21 is placed in locating slot 11.With calking bluff bit 2 mounting ends, an overhead piece 3 is set at described calking positive 1.Described calking positive 1, calking bluff bit 2 form shimming assembly together with combining with overhead piece 3.Described calking bluff bit 2 can open for axle rotates or do to expand and open by lug boss 21, and calking bluff bit 2 and the independent compound mode of calking positive 1 for not being fixedly connected with each other, more flexible, and better tightness.A minimum groove 12 is set the depressed part 13 of described calking positive 1 is interior, for make calking positive 1 and calking bluff bit 2 mutually open by pressure, to play the pressurize effect of positive confinement; At the interior shell fragment 5 that arranges of described groove 12.Preferably in described groove 12, be provided with pole 4.Be provided with pilot port at described calking positive 1 at the middle part of matching with the tip of described calking bluff bit 2, for carrying out pilot.
Described Fig. 4 illustrates, the calking positive 1 of shimming assembly and calking bluff bit 2 after pressurized on the state that opens, play the pressurize effect of excellent sealing, wherein arrow is the direction of opening, greatly the stability of the raising crescent gear pump of degree.
Described Fig. 5 illustrates, the state that the calking positive 1 of shimming assembly and calking bluff bit 2 open at an angle around lug boss 21 after pressurized, play the pressurize effect of excellent sealing, wherein arrow is the direction of opening, and can effectively eliminate the resonance of floating, greatly the stability of the raising crescent gear pump of degree.
Crescent gear pump, as Figure 8-9, and comprises 20, one small gears that engage with the part tooth portion of described gear ring 20 of gear ring for interior engagement, one the gear ring 20 of described interior engagement and the pump housing 24 of small gear is installed.Described small gear is fixed on wheel shaft, by axle bearing in the described pump housing 24.Described small gear is arranged off-centre with respect to gear ring 20, the engagement of the interior interdependent relative tooth of small gear and gear ring 20 portion.Between the top circle portion of gear ring 20 and small gear, form a sickle-shaped annular space narrowing gradually--pump chamber, in described pump chamber, be provided with substantially the above-mentioned shimming assembly suitable with a side periphery profile of described pump chamber.In described shimming assembly, be provided with shell fragment 5.Described crescent gear pump also comprises the front middle cover 25 and the protecgulum 8 that are arranged on the pump housing 24 front ends, the sealing gasket sealing that is provided with pressure plate 9 and two respective shapes between the described pump housing 24 and front middle cover 25.Rear middle cover 15 and the bonnet 17 of the described pump housing 24 rear ends, the sealing gasket sealing that is provided with pressure plate 9 and two respective shapes between the described pump housing 14 and rear middle cover 15.Described shimming assembly is installed on overhead piece 3.
As shown in Figure 10-13, the interior minimum sidewall of described groove 12 in the depressed part 13 of described calking positive 1 be reduce that pole 4 rubs face structure directly, make pole 4 not upspring affecting by sidewall and strut described calking bluff bit 2, sealing and pressure maintaining performance are better.The sidewall of described groove 12 for respect to calking positive 1 for being obliquely installed, be conducive to pole 4 pushing tow calking bluff bit 2 under the effect of shell fragment 5.
Although the utility model is to describe with reference to specific embodiment, this description not meaning that is construed as limiting the utility model.With reference to description of the present utility model, other of the disclosed embodiments change, and all can expect for those skilled in the art, and this variation should belong in affiliated claim limited range.
Claims (7)
1. shimming assembly, comprise calking positive and calking bluff bit, it is characterized in that, described calking positive one end upper surface is provided for installing the depressed part of calking bluff bit, at described depressed part, a minimum locating slot is set, described calking bluff bit is provided with the positioning convex portion matching with described locating slot, and described calking bluff bit is stacked on depressed part, and lug boss is placed in locating slot.
2. according to shimming assembly claimed in claim 1, it is characterized in that, described calking positive and calking bluff bit mounting end arrange an overhead piece.
3. according to shimming assembly claimed in claim 2, it is characterized in that, a minimum groove is set in the depressed part of described calking positive, in described groove, shell fragment is set.
4. according to shimming assembly claimed in claim 3, it is characterized in that, in described groove, be provided with pole.
5. according to shimming assembly claimed in claim 3, it is characterized in that, in the described groove in the depressed part of described calking positive, a minimum sidewall is the structure of facing directly that reduces pole friction.
6. according to shimming assembly claimed in claim 5, it is characterized in that, the sidewall of described groove is for being obliquely installed with respect to calking positive.
7. crescent gear pump, comprise that a gear ring for interior engagement, small gear engaging with the part tooth portion of described gear ring, one install the gear ring of described interior engagement and the pump housing of small gear, between the top circle portion of described gear ring and small gear, form an annular space narrowing gradually, in described annular space, be provided with arbitrary described shimming assembly according to claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666137.1U CN203627219U (en) | 2013-10-25 | 2013-10-25 | Gap filling component and internal meshing gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666137.1U CN203627219U (en) | 2013-10-25 | 2013-10-25 | Gap filling component and internal meshing gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627219U true CN203627219U (en) | 2014-06-04 |
Family
ID=50813702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320666137.1U Expired - Lifetime CN203627219U (en) | 2013-10-25 | 2013-10-25 | Gap filling component and internal meshing gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627219U (en) |
-
2013
- 2013-10-25 CN CN201320666137.1U patent/CN203627219U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |