CN209687702U - A kind of mud piston assembly - Google Patents
A kind of mud piston assembly Download PDFInfo
- Publication number
- CN209687702U CN209687702U CN201822276212.9U CN201822276212U CN209687702U CN 209687702 U CN209687702 U CN 209687702U CN 201822276212 U CN201822276212 U CN 201822276212U CN 209687702 U CN209687702 U CN 209687702U
- Authority
- CN
- China
- Prior art keywords
- piston
- periphery
- sealing ring
- end plate
- seal groove
- 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 kind of mud piston assemblies, belong to slush pump parts technical field.A kind of mud piston assembly, the both ends including periphery are arranged the piston body of seal groove and piston body both ends are arranged in for carrying out the piston end plate of block closure to seal groove；Piston body center setting circular hole and both ends of the surface correspond to circular hole and are wholely set annulus platform, and the periphery of the annulus platform is arranged card slot, is sleeved in card slot after piston end plate and annulus platform suit using slotted collar fixed；Sealing ring and flexible buffer gasket are set side by side in seal groove, the periphery of sealing ring is the arcwall face for protruding piston body periphery；Piston end plate periphery bevelling, sealing ring are nitrile rubber or polyurethane rubber, and buffer gasket is made of natural rubber.The utility model structure is simple, production easy to process, and stability in use is good, and sealing effect is good, and comprehensive service performance is good, can be improved the stability of mud pump operation.
Description
Technical field
The utility model relates to a kind of mud piston assemblies, belong to slush pump parts technical field.
Background technique
Slush pump has critically important use in oil drilling, and piston assembly is the main of fluid end of pump system
One of vulnerable part in one of part and drilling well work.The discharge pressure of slush pump is exactly that pass through piston assembly past in piston
Linear motion and generate.
A wider seal groove and sealing ring is only arranged in existing piston pump assembly, although can guarantee sealing effect
Fruit, once but the sealing ring fail, piston pump just can not normal use, cause slush pump not to be available, and replace
Sealing ring it is at high cost.In addition, existing piston assembly also has the problem of installation sealing ring inconvenience.
Utility model content
The purpose of the utility model is to provide a kind of mud piston assemblies, to solve above-mentioned technical problem.
To achieve the goals above, the technical solution adopted in the utility model is:
A kind of mud piston assembly, the piston body of the both ends setting seal groove including periphery and setting are in piston
Body both ends are used to carry out seal groove the piston end plate of block closure；Circular hole is arranged in piston body center and both ends of the surface correspond to circular hole
It is wholely set annulus platform, the periphery of the annulus platform is arranged card slot, uses slotted collar after piston end plate and annulus platform suit
It is sleeved in card slot fixed；Sealing ring and flexible buffer gasket are set side by side in seal groove, the periphery of sealing ring is
Protrude the arcwall face of piston body periphery；Piston end plate periphery bevelling, sealing ring are nitrile rubber or polyurethane rubber, are delayed
Washer is rushed to be made of natural rubber.
Technical solutions of the utility model further improvement lies in that: piston end plate periphery falls 30 ° of oblique angles.
Technical solutions of the utility model further improvement lies in that: the width of seal groove be piston body width 1/4~1/
3。
Technical solutions of the utility model further improvement lies in that: the equivalent width of two seal grooves.
Technical solutions of the utility model further improvement lies in that: buffer gasket with a thickness of sealing ring thickness 1/10~
1/15。
By adopting the above-described technical solution, the technical effect that the utility model obtains has:
It is provided with two seal grooves and sealing ring in the utility model, can be improved the sealing effect of the piston assembly, greatly
The failure risk of the piston assembly is reduced greatly, to improve the stability of mud pump operation.
The utility model seal groove is that opening is arranged and is fixed using piston end plate, is convenient for the piston assembly
Processing and fabricating and combination installation.
Sealing ring and flexible buffer gasket is arranged in the utility model in seal groove, and buffer circuit therein can
In the expansion of sealing ring operational heat, the space of expansion is provided for sealing ring, so that the complete of sealing ring shape and structure is kept, it should
It is arranged and also reduces the damage that sealing ring occurs due to expansion.
The utility model structure is simple, and production easy to process, stability in use is good, and sealing effect is good, comprehensive service performance
It is good, it can be improved the stability of mud pump operation.
Detailed description of the invention
Fig. 1 is the utility model stereoscopic schematic diagram；
Fig. 2 is the utility model piston body stereoscopic schematic diagram；
Fig. 3 is the utility model piston body main view；
Wherein, 1, piston body, 2, seal groove, 3, piston end plate, 4, annulus platform, 5, slotted collar, 6, sealing ring, 7, buffering
Washer, 8, card slot.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further details the utility model:
The utility model discloses a kind of mud piston assemblies, are the components of slush pump power output end, are settings
On the piston rod of slush pump.Here is specific embodiment:
The mud piston assembly of the utility model, as shown in Figure 1, Figure 2, Figure 3 shows, including piston body 1 and setting are in work
The piston end plate 3 at 1 both ends of cock body.It is respectively provided with seal groove 2 at the both ends of the periphery of piston body 1, described 2 one end of seal groove is
Hatch frame, consequently facilitating sealing ring 6 is installed in seal groove 2.Piston end plate 3 is fixedly installed at 1 both ends of piston body, is used for
Block closure is carried out to seal groove 2.Preferentially, the equivalent width of two seal grooves 2.
Circular hole is arranged at 1 center of piston body in the utility model, and corresponds to circular hole in the both ends of the surface of piston body 1 and be wholely set
Card slot 8 is arranged in the periphery of annulus platform 4 in annulus platform 4.After piston end plate 3 and annulus platform 4 are set with, 5 sets of slotted collar are used
It is fixed in card slot 8.Slotted collar 5 can make piston end plate 3 be tightly fixed to the both ends of piston body 1.The setting lower piston
End plate 3 is convenient for being fixedly mounted.It is specific as shown in Figure 1 and Figure 2.
Sealing ring 6 and flexible buffer gasket 7 is set side by side in the utility model in seal groove 2, wherein sealing ring 6
Periphery be protrude 1 periphery of piston body arcwall face.The inboard wall of cylinder liner of sealing ring 6 and slush pump is in close contact to form sealing
Chamber.Two sealing rings 6 are provided in the utility model can be improved the sealing effect of the piston assembly, improve mud pump operation
Stability.Sealing ring 6 in the utility model is nitrile rubber or polyurethane rubber, and buffer gasket 7 is made of natural rubber.It is slow
The elasticity with higher of washer 7 is rushed, in piston assembly work, sealing ring 6 and the inboard wall of cylinder liner frictional heat generation with slush pump
And expand, buffer gasket 7 can be that sealing ring 6 provides the space of expansion using the elasticity of itself.In specific implement,
Preferentially, buffer gasket 7 with a thickness of the 1/10~1/15 of 6 thickness of sealing ring.
3 periphery bevelling of piston end plate in the utility model, preferential, 3 periphery of piston end plate is fallen 30 ° tiltedly
Angle.
For the utility model in specific implement, the width of seal groove 2 is 1/4~1/3, Neng Gouwei of 1 width of piston body
The piston assembly provides preferable sealing effect.
It is provided with two seal grooves and sealing ring in the utility model, can be improved the sealing effect of the piston assembly, greatly
The failure risk of the piston assembly is reduced greatly, to improve the stability of mud pump operation.
The utility model seal groove is that opening is arranged and is fixed using piston end plate, is convenient for the piston assembly
Processing and fabricating.The piston assembly structure is simple, stability in use is good, and comprehensive service performance is good.
Claims (5)
1. a kind of mud piston assembly, it is characterised in that: the piston body of both ends setting seal groove (2) including periphery
(1) and it is arranged at piston body (1) both ends for seal groove (2) to be carried out with the piston end plate (3) of block closure；Piston body (1)
Circular hole is arranged in center and both ends of the surface correspond to circular hole and are wholely set annulus platform (4), and card slot is arranged in the periphery of the annulus platform (4)
(8), piston end plate (3) and annulus platform (4) are sleeved in card slot (8) using slotted collar (5) after being set with and are fixed；Seal groove (2)
Sealing ring (6) and flexible buffer gasket (7) is inside set side by side, the periphery of sealing ring (6) is to protrude piston body (1) outside
The arcwall face of disc；Piston end plate (3) periphery bevelling, sealing ring (6) are nitrile rubber or polyurethane rubber, buffer gasket
(7) it is made of natural rubber.
2. a kind of mud piston assembly according to claim 1, it is characterised in that: piston end plate (3) periphery falls 30 °
Oblique angle.
3. a kind of mud piston assembly according to claim 1, it is characterised in that: the width of seal groove (2) is piston
The 1/4~1/3 of body (1) width.
4. described in any item a kind of mud piston assemblies according to claim 1~3, it is characterised in that: two seal grooves (2)
Equivalent width.
5. described in any item a kind of mud piston assemblies according to claim 1~3, it is characterised in that: buffer gasket (7)
With a thickness of the 1/10~1/15 of sealing ring (6) thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822276212.9U CN209687702U (en) | 2018-12-20 | 2018-12-20 | A kind of mud piston assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822276212.9U CN209687702U (en) | 2018-12-20 | 2018-12-20 | A kind of mud piston assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209687702U true CN209687702U (en) | 2019-11-26 |
Family
ID=68597933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822276212.9U Expired - Fee Related CN209687702U (en) | 2018-12-20 | 2018-12-20 | A kind of mud piston assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209687702U (en) |
-
2018
- 2018-12-20 CN CN201822276212.9U patent/CN209687702U/en not_active Expired - Fee Related
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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: 20191126 Termination date: 20201220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |