CN2610119Y - Piston packing cup of mud pump - Google Patents
Piston packing cup of mud pump Download PDFInfo
- Publication number
- CN2610119Y CN2610119Y CN 03240209 CN03240209U CN2610119Y CN 2610119 Y CN2610119 Y CN 2610119Y CN 03240209 CN03240209 CN 03240209 CN 03240209 U CN03240209 U CN 03240209U CN 2610119 Y CN2610119 Y CN 2610119Y
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- CN
- China
- Prior art keywords
- piston
- utility
- model
- leather cup
- leather
- 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
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Abstract
The utility model relates to a mud pump piston packing leather, which mainly solves the problem of prior art being poor in wear resistance and salability, easy to damage and short in service life, which leads to large operating cost. The utility model is characterized in that the packing leather (3) which outer surface is of taper shape is fixed on the bottom with a nylon ring (2) based on a convex piston (1), the leather (3) is contacted with a press cover (4) then locked on the piston (1) by a snap ring (5). The utility model is strong in supporting force and tolerance, which is good in sealing performance, hard wearing and long in service life.
Description
Technical field:
The utility model relates to oil drilling machinery, belongs to a kind of mud piston leather cup.
Background technique:
In oilfield drilling, carry out the landwaste in shaft bottom and circulating fluid through slurry pump commonly used, slurry pump is to finish work progress by the to-and-fro motion of piston, piston and fluid cylinder and leather cup form airtight cavity, the leather cup of piston is with piston reciprocates the time, its working environment is very abominable, one will bear higher pressure, two will with the good seal performance of fluid cylinder, three want transfer of highly viscous, the liquid of big density and high sand content and highly corrosive, flowability is less relatively, and the outer surface left end of existing piston packing ring is cylindric, is a boss shape apart from right endpoint 5mm place, this structure antiwear property and poor sealing performance, fragile, life-span is short, so operating cost is big.
The model utility content:
In order to overcome existing leather cup antiwear property and poor sealing performance, fragile, deficiency that the life-span is short, the utility model provides a kind of piston cup, and this piston cup antiwear property is good, durable in use, and support force is strong, good sealing effect, and service time is long.
The technological scheme that the utility model adopted is: the mud piston leather cup, form by piston, nylon ring, gland and snap ring, outer surface is intrinsic nylon ring recoil, cone shape leather cup bottom surface on the convex piston, and the leather cup ramp is stuck on the piston by snap ring mutually after touch with gland.
The beneficial effects of the utility model are: because this piston cup has adopted outer surface to be little coniform in a right big left side, nylon ring and leather cup are bonded to one, and it is strong to have a support force, bears the high characteristics of pressure, good seal performance, and wear-resistant, durable, the life-span is long.
Description of drawings:
Fig. 1 is the utility model structure sectional view.
1-piston among the figure, 2-nylon ring, 3-leather cup, 4-gland, 5-snap ring.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
Shown in Fig. 1, a kind of mud piston leather cup, be made up of piston 1, nylon ring 2, gland 4 and snap ring 5, outer surface is intrinsic nylon ring 2 recoils, cone shape leather cup 3 bottom surfaces on convex piston 1, and leather cup 3 ramps are stuck on the piston by snap ring 5 mutually after touch with gland 4.Piston packing ring is that a right-hand member diameter is cone shape leather cup 3 greater than left end diameter and outer surface, and it can bear the pressure of 300MPa, is used with fluid cylinder and piston 1 and forms an airtight cavity, good seal performance, antiwear property is good, and support force is strong, long service life.
In actual use, there is the through hole that can scurry into pull bar at piston 1 center, by nut piston 1 is linked to each other with pull bar, piston 1, nylon ring 2, piston cup 3, gland 4 and snap ring 5 constitute piston assembly, when crank rotates, driving piston assembly moves from right to left, has certain vacuum in the cavity that piston 1 and piston cup 3 and fluid cylinder form, suck liquid under the effect of liquid level pressure, push suction valve open, enter fluid cylinder, stop to left stop, be the suction process of fluid cylinder up to piston assembly work.Crank is rotated further, and it is to the right the fluid end motion that piston assembly begins, and liquid is squeezed in the fluid cylinder, and pressure raises, suction valve closure, and expulsion valve is open, and liquid is discharged from, and stops when piston assembly moves to right stop, is the discharge process of fluid cylinder.Crank connects the rotation that continues, reciprocating its suction and the discharge process finished of piston assembly.
Claims (1)
1, a kind of mud piston leather cup, form by piston (1), nylon ring (2), gland (4) and snap ring (5), its feature exists: outer surface is the intrinsic nylon ring in cone shape leather cup (3) bottom surface (2) recoil on convex piston (1), and leather cup (3) ramp is stuck on the piston (1) by snap ring (5) mutually after touch with gland (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240209 CN2610119Y (en) | 2003-03-07 | 2003-03-07 | Piston packing cup of mud pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03240209 CN2610119Y (en) | 2003-03-07 | 2003-03-07 | Piston packing cup of mud pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2610119Y true CN2610119Y (en) | 2004-04-07 |
Family
ID=34167959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03240209 Expired - Fee Related CN2610119Y (en) | 2003-03-07 | 2003-03-07 | Piston packing cup of mud pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2610119Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691654A (en) * | 2012-06-15 | 2012-09-26 | 吉林大学 | Mud pump piston with pits on surface |
| CN112145226A (en) * | 2020-10-26 | 2020-12-29 | 辽宁工程技术大学 | Coal mine goaf grouting filling device and method |
-
2003
- 2003-03-07 CN CN 03240209 patent/CN2610119Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691654A (en) * | 2012-06-15 | 2012-09-26 | 吉林大学 | Mud pump piston with pits on surface |
| CN102691654B (en) * | 2012-06-15 | 2014-11-26 | 吉林大学 | Mud pump piston with pits on surface |
| CN112145226A (en) * | 2020-10-26 | 2020-12-29 | 辽宁工程技术大学 | Coal mine goaf grouting filling device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040407 Termination date: 20110307 |