CN204755293U - Mud piston leather cup - Google Patents
Mud piston leather cup Download PDFInfo
- Publication number
- CN204755293U CN204755293U CN201520471168.0U CN201520471168U CN204755293U CN 204755293 U CN204755293 U CN 204755293U CN 201520471168 U CN201520471168 U CN 201520471168U CN 204755293 U CN204755293 U CN 204755293U
- Authority
- CN
- China
- Prior art keywords
- leather cup
- cup body
- nylon ring
- piston
- rubber cup
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a mud piston leather cup belongs to slush pump water -tight equipment field. This mud piston leather cup comprises rubber leather cup body and nylon ring, rubber leather cup body to be the toper cylindric, rubber leather cup body lower extreme is provided with annular notch, the nylon ring is through the lower extreme of annular notch suit at rubber leather cup body. This mud piston leather cup has changed original nylon and has encircled the installation design that the connected mode of directly docking with the rubber leather cup had adopted the suit to be connected. So just, greatly increased the area of contact of nylon ring with the rubber leather cup, the contact surface adopts to bond handles the back, the nylon ring will be connected closelyr with the rubber leather cup, mechanical properties is more excellent. Ensured that the nylon ring was better with the leakproofness of the zonulae occludens messenger piston cup of rubber leather cup when reciprocating motion was along with the mud piston to the piston cup, the life -span is longer. The construction needs of oil field probing are particularly suitable for.
Description
Technical field
The utility model relates to a kind of piston packing cup of mud pump, belongs to slurry pump sealing device field.
Background technique
Along with going deep into of oil field deep well exploitation, day by day increasing of machinery.Slurry pump working environment conventional in field drilling is increasingly sophisticated.Piston cup working environment as the important black box of slurry pump is also more severe, and piston cup not only needs higher wear resistance and decay resistance, also needs to have good sealing and just can guarantee carrying out smoothly of slurry pump force feed and circulating flushing washing lotion.
Existing piston cup is made up of nylon ring and rubber cup two-part, nylon ring and rubber cup are that the mode of directly docking with sulfuration links together, when piston cup moves reciprocatingly motion with mud piston, because the area of contact of nylon ring and rubber cup is less, in its movement process, sulfuration joint easily throws off the poor sealing performance causing piston cup, and the life-span is shorter.Be not well positioned to meet the construction needs of field drilling.
Summary of the invention
The purpose of this utility model is: provide a kind of structure simple, good seal performance, and difficult drop-off, to solve existing piston cup seal poor performance, easily come off, and the piston packing cup of mud pump of life-span short problem.
The technical solution of the utility model is:
A kind of piston packing cup of mud pump, it is made up of rubber cup body and nylon ring; It is characterized in that: the described tapered cylindrical shape of rubber cup body, rubber cup body lower end is provided with annular notch, and nylon ring is sleeved on the lower end of rubber cup body by annular notch.
Described nylon ring upper-end surface and internal surface mutually bonding with rubber cup body.
Described rubber cup body lower end is provided with annular groove, and nylon ring is sleeved on the lower end of rubber cup body by annular groove.
The height of described rubber cup body is 44mm, and the large end external diameter of rubber cup body is 117.3mm, and rubber cup body small end external diameter is 112.2mm.
The utility model has the advantage of:
This piston packing cup of mud pump changes original nylon ring and have employed with the Placement that rubber cup directly docks the mounting design being set with and being connected.The nylon ring of this piston packing cup of mud pump and rubber cup not only to be connected but also nylon ring internal surface also contacts with rubber cup at end contact.So just considerably increase the area of contact of nylon ring and rubber cup, after surface of contact adopts bonding process, nylon ring will be connected tightr with rubber cup, mechanical property is more excellent.When ensure that piston cup moves reciprocatingly with mud piston, the compact siro spinning technology of nylon ring and rubber cup makes the better tightness of piston cup, and the life-span is longer.Be particularly suitable for the construction needs of field drilling.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the utility model rubber cup body arranges reeded structural representation.
In figure: 1, rubber cup body, 2, nylon ring.
Embodiment
This piston packing cup of mud pump is made up of rubber cup body 1 and nylon ring 2; The first structure of this piston packing cup of mud pump is: the described tapered cylindrical shape of rubber cup body 1.Rubber cup body 1 lower end is provided with annular notch, and nylon ring 2 is sleeved on the lower end of rubber cup body 1 by annular notch.Nylon ring 2 upper-end surface and internal surface mutually bonding with rubber cup body.Substantially increase nylon ring 2 and the area of contact of rubber cup body 1 with this, make nylon ring 2 tightr with the connection of rubber cup body 1.
Rubber cup body 1 of the present utility model is highly 44mm, and rubber cup body 1 greatly end external diameter is 117.3mm, and rubber cup body 1 small end external diameter is 112.2mm.
Be sleeved on the piston of slurry pump by nut and gland by piston cup during work, after tightening gland, this piston cup just can move reciprocatingly in slurry pump with piston.The oil hydraulic cylinder of this piston cup and slurry pump is slidably connected in this course, and piston cup is opened isolated for the inner chamber of oil hydraulic cylinder, has the effect of sealing fluid cylinder pressure inner chamber.Because this piston packing cup of mud pump adopts nylon ring 2 to be sleeved on the mounting design of rubber cup body 1 lower end.To connect but also nylon ring 2 internal surface also contacts with rubber cup so that nylon ring 2 not only contacts with each other at end face and rubber cup.Nylon ring 2 like this just increases greatly with the area of contact of rubber cup 1, and after surface of contact adopts bonding process, nylon ring 2 will be connected tightr with rubber cup 1, mechanical property is more excellent.When ensure that piston cup moves reciprocatingly with mud piston, the compact siro spinning technology of nylon ring and rubber cup makes the better tightness of piston cup, and the life-span is longer.Be particularly suitable for the construction needs of field drilling.
As the improvement of such scheme, also rubber cup body 1 lower end can be provided with annular groove, nylon ring 2 is sleeved on the lower end (see Fig. 2) of rubber cup body by annular groove.This kind of structure can make nylon ring 2 increase further with the area of contact of rubber cup body 1, increases the assembling intensity of nylon ring 2 on rubber cup body 1 thus; And then the risk that minimizing nylon ring 2 comes off.
Claims (4)
1. a piston packing cup of mud pump, it is made up of rubber cup body (1) and nylon ring (2), it is characterized in that: described rubber cup body (1) tapered cylindrical shape, rubber cup body (1) lower end is provided with annular notch, and nylon ring (2) is sleeved on the lower end of rubber cup body (1) by annular notch.
2. a kind of piston packing cup of mud pump according to claim 1, is characterized in that: described nylon ring (2) upper-end surface and internal surface mutually bonding with rubber cup body (1).
3. a kind of piston packing cup of mud pump according to claim 1, is characterized in that: described rubber cup body (1) lower end is provided with annular groove, and nylon ring (2) is sleeved on the lower end of rubber cup body (1) by annular groove.
4. a kind of piston packing cup of mud pump according to claim 1, is characterized in that: the height of described rubber cup body (1) is 44mm, and rubber cup body (1) greatly end external diameter is 117.3mm, and rubber cup body (1) small end external diameter is 112.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520471168.0U CN204755293U (en) | 2015-07-03 | 2015-07-03 | Mud piston leather cup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520471168.0U CN204755293U (en) | 2015-07-03 | 2015-07-03 | Mud piston leather cup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755293U true CN204755293U (en) | 2015-11-11 |
Family
ID=54470005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520471168.0U Expired - Fee Related CN204755293U (en) | 2015-07-03 | 2015-07-03 | Mud piston leather cup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790152A (en) * | 2021-07-27 | 2021-12-14 | 合肥精创科技有限公司 | Slurry pump piston rubber and preparation method thereof |
-
2015
- 2015-07-03 CN CN201520471168.0U patent/CN204755293U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790152A (en) * | 2021-07-27 | 2021-12-14 | 合肥精创科技有限公司 | Slurry pump piston rubber and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20170703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |