CN208184960U - A kind of wear-resisting piston cup - Google Patents
A kind of wear-resisting piston cup Download PDFInfo
- Publication number
- CN208184960U CN208184960U CN201820440866.8U CN201820440866U CN208184960U CN 208184960 U CN208184960 U CN 208184960U CN 201820440866 U CN201820440866 U CN 201820440866U CN 208184960 U CN208184960 U CN 208184960U
- Authority
- CN
- China
- Prior art keywords
- leather cup
- piston
- groove
- cup
- upper port
- 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 - Fee Related
Links
- 239000010985 leather Substances 0.000 claims abstract description 54
- 239000004677 Nylon Substances 0.000 claims abstract description 16
- 229920001778 nylon Polymers 0.000 claims abstract description 16
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of durable piston cups, including leather cup, convex piston, pressing plate, the leather cup is socketed on the convex piston, the leather cup is by upper port, through-hole, lower port composition, the through-hole is equipped between the upper port and the lower port, the second groove is provided on the inner wall of the through-hole, annular groove is provided on the lower port outer wall of the leather cup, nylon washer is socketed in the annular groove, the nylon washer is bonded to one with the leather cup, the upper port of the leather cup connects the pressing plate, the pressing plate is connected on convex piston by fixture block, the utility model structure is simple, it is easy to use, the second groove is provided on the inner wall of the through-hole, both installation had been can be convenient, not cracky, it can reinforce the combination of leather cup and piston rod again, good seal performance.
Description
Technical field:
The utility model relates to drilling machinery fields, and in particular to a kind of wear-resisting piston cup.
Background technique:
In oilfield drilling, the landwaste and circulating fluid in shaft bottom are carried out through commonly using slush pump, slush pump is
Work progress, piston and fluid cylinder are completed by the reciprocating motion of piston and leather cup forms closed cavity, the leather cup of piston
When reciprocating with piston, its working environment is very severe, and one will bear higher pressure, and two will be with the sealing of fluid cylinder
Performance is good, and three want the liquid of transfer of highly viscous, big density and high sand content and highly corrosive, and mobility is relatively small, existing
Piston seal leather cup mostly uses bottom liner that elastomer is added to form greatly, and two kinds of different materials are bonded using binder, the extremely difficult control of timeliness
System, bonding is unstable, insecure, and the surface abrasion of elastomer is more serious over time, and thus the utility model is proposed one
The wear-resisting piston cup of kind.
Utility model content:
The technical problem to be solved by the utility model is to provide a kind of structure is simple, wear-resisting, the piston of good airproof performance
Leather cup.
The following technical solution is employed for technical problem to be solved in the utility model to realize: a kind of durable piston skin
Bowl, including leather cup, convex piston, pressing plate, the leather cup be socketed on the convex piston, the leather cup is by upper port, through-hole,
Lower port composition, is equipped with the through-hole between the upper port and the lower port, it is recessed to be provided with second on the inner wall of the through-hole
Slot is provided with annular groove on the lower port outer wall of the leather cup, is socketed nylon washer, the nylon washer in the annular groove
It is bonded to one with the leather cup, the upper port of the leather cup connects the pressing plate, and the pressing plate is connected to convex by fixture block
On piston.
Further, annular is equipped with the first groove on the inner wall of the upper port.
Further, a strata urethane wearing layer is covered on the outside of the leather cup.
Further, second groove is conical socket and quantity is three.
Further, the cross section of the upper port is trapezoidal.
The beneficial effects of the utility model are: the utility model structure is simple, and it is easy to use, it is opened on the inner wall of the through-hole
There is the second groove, both can be convenient installation, not cracky, and the combination of leather cup and piston rod can be reinforced, good seal performance, institute
It states and is provided with annular groove on the lower port outer wall of leather cup, nylon washer is socketed on the annular groove, increases nylon washer
With the contact area of leather cup, make nylon washer and the even closer connection of leather cup, annular is equipped with the on the inner wall of the upper port
One groove saves material, mitigates weight, and second groove is conical socket and quantity is three, eliminates stress concentration, prolongs
The service life of long leather cup is covered with a strata urethane wearing layer on the outside of the leather cup, enhances the intensity of leather cup, used
Journey is hardly damaged, and further extends service life.
Detailed description of the invention:
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 is the cross-sectional view of leather cup in the utility model；
Fig. 3 is the top view of the utility model leather cup；
Fig. 4 is the cross-sectional view in the utility model embodiment 2；
Wherein: 1- fixture block；2- pressing plate；3- leather cup；4- nylon washer；5- convex piston；The first groove of 301-；302- annular
Groove；The second groove of 303-；304- upper port；305- through-hole；306- lower port；307- polyurethane wear resistant layer.
Specific embodiment:
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Embodiment 1
As shown in Figure 1 to Figure 3, a kind of wear-resisting piston cup, including leather cup 3, convex piston 5, pressing plate 2, leather cup 3 are socketed
On convex piston 5, leather cup 3 is by upper port 304, through-hole 305, and lower port 306 forms, upper port 304 and lower port 306 it
Between be equipped with through-hole 305, be provided with the second groove 303 on the inner wall of through-hole 305, increase the contact surface of nylon washer 4 Yu leather cup 3
Product, makes nylon washer 4 and the even closer connection of leather cup 3, is provided with annular groove 302 on the outer wall of lower port 306, both can be square
Just it installs, not cracky, and the combination of leather cup and piston rod can be reinforced, good seal performance, annular groove 302 is interior to be socketed Buddhist nun
Imperial washer 4, nylon washer 4 are bonded to one with leather cup 3, and the upper port 304 of leather cup 3 connects pressing plate 2, and pressing plate 2 is blocked by fixture block 1
It connects on convex piston 5, it is U that annular, which is equipped with the first groove 301 and the cross section of the first groove 301, on the inner wall of upper port 304
The cross section of type, the second groove 303 is U-shaped and the quantity of the second groove 303 is three, eliminates stress concentration, extends leather cup
Service life, the cross section of upper port 304 is trapezoidal.
Embodiment 2
Such as Fig. 1, Fig. 3, shown in Fig. 4, a kind of wear-resisting piston cup, including leather cup 3, convex piston 5, pressing plate 2, leather cup 3
It is socketed on convex piston 5, leather cup 3 is made of upper port 304, through-hole 305, lower port 306, upper port 304 and lower port 306
Between be equipped with through-hole 305, be provided with the second groove 303 on the inner wall of through-hole 305, increase the contact surface of nylon washer 4 Yu leather cup 3
Product, makes nylon washer 4 and the even closer connection of leather cup 3, is provided with annular groove 302 on the outer wall of lower port 306, both can be with
Facilitate installation, not cracky, and the combination of leather cup and piston rod can be reinforced, good seal performance, annular groove 302 is interior to be socketed Buddhist nun
Imperial washer 4, nylon washer 4 are bonded to one with leather cup 3, and the upper port 304 of leather cup 3 connects pressing plate 2, and pressing plate 2 passes through fixture block 1
It is connected on convex piston 5, annular is equipped with the first groove 301 on the inner wall of upper port 304 and the cross section of the first groove 301 is
U-shaped, the cross section of the second groove 303 is U-shaped and the quantity of the second groove 303 is three, eliminates stress concentration, extends leather cup
Service life, the cross section of upper port 304 is trapezoidal, and the outside of leather cup 3 can also be covered with a strata urethane wearing layer
307, the intensity of leather cup is enhanced, use process is hardly damaged, and further extends service life.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (5)
1. a kind of wear-resisting piston cup, is characterized in that: including leather cup (3), convex piston (5), pressing plate (2), the leather cup (3)
It is socketed on the convex piston (5), the leather cup (3) is by upper port (304), through-hole (305), lower port (306) composition, institute
It states and is equipped with the through-hole (305) between upper port (304) and the lower port (306), be provided on the inner wall of the through-hole (305)
Second groove (303) is provided with annular groove (302) on the outer wall of the lower port (306), annular groove (302) inner sleeve
It connects nylon washer (4), the nylon washer (4) is bonded to one with the leather cup (3), the upper port (304) of the leather cup (3)
It connects the pressing plate (2), the pressing plate (2) is connected on the convex piston (5) by fixture block (1).
2. the wear-resisting piston cup of one kind according to claim 1, it is characterised in that: the inner wall of the upper port (304)
It is U-shaped that upper annular, which is equipped with the first groove (301) and the cross section of first groove (301),.
3. the wear-resisting piston cup of one kind according to claim 1, it is characterised in that: covered on the outside of the leather cup (3)
There is a strata urethane wearing layer (307).
4. the wear-resisting piston cup of one kind according to claim 1, it is characterised in that: the cross of second groove (303)
Section is that the quantity of U-shaped and described second groove (303) is three.
5. the wear-resisting piston cup of one kind according to claim 1, it is characterised in that: the upper port (304) it is transversal
Face is trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820440866.8U CN208184960U (en) | 2018-03-28 | 2018-03-28 | A kind of wear-resisting piston cup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820440866.8U CN208184960U (en) | 2018-03-28 | 2018-03-28 | A kind of wear-resisting piston cup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208184960U true CN208184960U (en) | 2018-12-04 |
Family
ID=64435389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820440866.8U Expired - Fee Related CN208184960U (en) | 2018-03-28 | 2018-03-28 | A kind of wear-resisting piston cup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208184960U (en) |
-
2018
- 2018-03-28 CN CN201820440866.8U patent/CN208184960U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111692064A (en) | Long-life plunger pump hydraulic end | |
| CN208184960U (en) | A kind of wear-resisting piston cup | |
| CN109185119B (en) | BW-250 type mud pump bionic piston | |
| CN202900628U (en) | Cylinder sleeve and slush pump of comprising the same | |
| CN211039005U (en) | Wear-resistant split plunger for high-pressure plunger pump | |
| CN208024550U (en) | A kind of novel anti-high pressure piston leather cup | |
| CN212564387U (en) | Piston sealing structure and sealing piece for hydraulic oscillator | |
| CN208184963U (en) | A kind of novel high-performance piston | |
| CN205533171U (en) | Slush pump piston cup | |
| CN206723029U (en) | A kind of ceramic cylinder jacket | |
| CN209724846U (en) | A kind of low friction high-speed oil cylinder | |
| CN208457187U (en) | A kind of self-lubricating rubber gasket | |
| CN208416484U (en) | A kind of compound double-layer seal packing | |
| CN205859155U (en) | Hydrodynamic piston shaft sealing part | |
| CN205895193U (en) | Tuningout polish rod sealing device is prevented spouting by high abrasion | |
| CN107387765A (en) | A kind of hydraulic cylinder sealing ring | |
| CN205064251U (en) | From cooling piston | |
| CN204755293U (en) | Mud piston leather cup | |
| CN202170854U (en) | Reciprocating profile control pump | |
| CN201080908Y (en) | Long plunger elastic seal oil pump | |
| CN208564946U (en) | A kind of plunger sealing structure | |
| CN2718266Y (en) | Polyurethane piston | |
| CN220716518U (en) | Quantitative continuous glue outlet unit | |
| CN207945075U (en) | A kind of new-type mortar Piston for pump | |
| CN208815902U (en) | A kind of pump truck chromium-plated axle sleeve that can be recycled |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |