CN206555084U - Mud piston - Google Patents
Mud piston Download PDFInfo
- Publication number
- CN206555084U CN206555084U CN201720214554.0U CN201720214554U CN206555084U CN 206555084 U CN206555084 U CN 206555084U CN 201720214554 U CN201720214554 U CN 201720214554U CN 206555084 U CN206555084 U CN 206555084U
- Authority
- CN
- China
- Prior art keywords
- ring portion
- glue ring
- piston
- mud
- glue
- 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 proposes a kind of mud piston, including piston core, and it is fixedly sheathed in the glue ring outside piston core, glue ring is divided into the first glue ring portion vertically, and the second glue ring portion that can be crimped with inboard wall of cylinder liner, it is fixedly connected between first glue ring portion and the second glue ring portion, the first glue ring portion inner surface is fitted with piston outer core, the second glue ring portion inner surface is fitted with piston outer core.The utility model improves the operating efficiency of mud piston.
Description
Technical field
The utility model is related to field of oil drilling, and in particular to slush pump field, more particularly to a kind of mud piston.
Background technology
Mud pump for petroleum drilling refers in oil drilling process to be set to the machinery of the conveying flushing liquor such as mud or water in drilling
Standby, it is oil drilling system " heart "., it is necessary to which slush pump is worked continuously in for a long time in drilling process, and piston conduct
The important accessory of drilling mud pump, serves vital effect during the use of slush pump, therefore, the damage of piston
The normal drilling and bit speed of drilling well can seriously be govern.
Existing mud piston is as shown in figure 1, it includes piston core 1, and the glue ring being fixedly sheathed in outside piston core 1
2, glue ring 2 is divided into the first glue ring portion 21 and the second glue ring portion 22 vertically, one between the first glue ring portion 21 and the second glue ring portion 22
Change connection, the inner surface of the first glue ring portion 21 is fitted with the outer wall of piston core 1, the inner surface of the second glue ring portion 22 and the outer wall shape of piston core 1
Into there is space.The mud piston can do quick reciprocating motion in mud slurry pump cylinder jacket.
However, above-mentioned mud piston is formed with space due to the inner surface of the second glue ring portion 22 and the outer wall of piston core 1, therefore
Operationally the second glue ring portion 22 can deform because by high temperature and affected by high, so as to cause between piston core 1 and cylinder sleeve
It is poorly sealed careful, and then influence operating efficiency.
The content of the invention
The utility model is directed to the ineffective technical problem of existing mud piston, proposes that a kind of operating efficiency is high
Mud piston.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of mud piston, including piston core, and the glue ring being fixedly sheathed in outside piston core, glue ring are divided into vertically
First glue ring portion, and the second glue ring portion that can be crimped with inboard wall of cylinder liner, are fixedly connected between the first glue ring portion and the second glue ring portion,
First glue ring portion inner surface is fitted with piston outer core, and the second glue ring portion inner surface is fitted with piston outer core.
Preferably, the first glue ring portion is rubber cup, the second glue ring portion is rubber cushion.
Preferably, the first glue ring portion and the second glue ring portion are rubber cup, the first glue ring portion and the second glue ring portion one
Bodyization is connected.
Preferably, the first glue ring portion and the second glue ring portion are rubber cushion, the first glue ring portion and the integration of the second glue ring portion
Connection.
Preferably, the part that can be crimped in the second glue ring portion with cylinder sleeve is contact site, contact site is annular protrusion, annular
Raised axial cross section width diminishes along the direction away from the center of circle.
Preferably, the axial cross section of annular protrusion is triangle.
Preferably, piston outer core, which corresponds in the first glue ring portion, radially offers the first groove, the first glue ring portion
Inner surface integrated setting has the first boss being coincide with the first groove.
Preferably, piston outer core, which corresponds in the second glue ring portion, radially offers the second groove, the second glue ring portion
Inner surface integrated setting has the second boss being coincide with the second groove.
Preferably, piston outer core corresponds in the first glue ring portion offers the 3rd groove, the first glue ring portion vertically
Inner surface integrated setting has the 3rd boss being coincide with the 3rd groove.
Preferably, piston outer core, which corresponds in the second glue ring portion, radially offers the 4th groove, the second glue ring portion
Inner surface integrated setting has the 4th boss being coincide with the 4th groove.
Compared with prior art, advantage of the present utility model and good effect are：
The utility model mud piston is by setting by by the second glue ring portion inner surface of glue ring and piston outer core
Laminating is set, i.e. be entity between the second glue ring portion inner surface and piston outer core, former mud piston is instead of in corresponding with this
The gap of position, while the deformation for making the second glue ring portion is only the second glue ring portion elastic deformation of itself, that is, is effectively reduced
The deformation that glue ring occurs under mud piston high temperature, the working environment of high pressure, so as to ensure that between mud piston and cylinder sleeve
Sealing, and then effectively increase the operating efficiency of mud piston.
Brief description of the drawings
Fig. 1 is the structural representation of existing mud piston；
Fig. 2 is the structural representation of the utility model mud piston；
Fig. 3 is the structural representation of the utility model piston core 1；
Fig. 4 is the structural representation of the utility model the first glue ring portion；
Fig. 5 is the structural representation of the utility model the second glue ring portion；
Fig. 6 is the working state schematic representation of the utility model mud piston；
Above in each figure：1st, piston core；11st, the first groove；12nd, the second groove；13rd, the 3rd groove；14th, the 4th groove；
2nd, glue ring；21st, the first glue ring portion；211st, first boss；212nd, the 3rd boss；22nd, the second glue ring portion；221st, second boss；
222nd, the 4th boss；223rd, contact site；3rd, cylinder sleeve.
Embodiment
Below, the utility model is specifically described by exemplary embodiment.It should be appreciated, however, that not having
In the case of being further discussed below, element, structure and features in an embodiment can also be advantageously incorporated into other implementations
In mode.
, it is necessary to which explanation, term " first ", " second ", " the 3rd " are only used for description in description of the present utility model
Purpose, and it is not intended that indicating or implying relative importance.
As shown in figure 1, a kind of mud piston, can move reciprocatingly in mud slurry pump cylinder jacket, including piston core 1, and
The glue ring 2 outside piston core 1 is fixedly sheathed in, glue ring 2 is divided into the first glue ring portion 21 and the second glue ring portion 22 vertically, wherein, the
Gap (for example, both gaps are set to 0.1mm), first are formed between the outer surface of one glue ring portion 21 and inner surface of cylinder liner
Glue ring portion 21 mainly plays axially support, is crimped between the outer surface of the second glue ring portion 22 and inner surface of cylinder liner, the second glue
Ring portion 22 mainly serve between piston and cylinder sleeve sealedly；
It is fixedly connected between first glue ring portion 21 and the second glue ring portion 22, the inner surface of the first glue ring portion 21 and the outer wall of piston core 1
Laminating, the inner surface of the second glue ring portion 22 is fitted with the outer wall of piston core 1, i.e., between the inner surface of the second glue ring portion 22 and the outer wall of piston core 1
For entity, former mud piston instead of in the space of relevant position with this.
It is preferred that, for the structure of above-mentioned glue ring 2, Ke Yiwei：As shown in Fig. 2 the first glue ring portion 21 is rubber cup, with
Played a supportive role in the reciprocatory movement of piston；Second glue ring portion 22 is rubber cushion, can preferably be prevented in high temperature, high pressure work
Make the deformation under environment, and also function to certain supporting role；Above-mentioned setting of the present utility model can improve piston and mud
Sealing between stock pump cylinder sleeve, while improving stability of the piston in the course of work.
In addition, glue ring 2 can also be：First glue ring portion 21 and the second glue ring portion 22 are rubber cup, the first glue ring portion
21 and the integration connection of the second glue ring portion 22.
In addition, glue ring 2 can also be：First glue ring portion 21 and the second glue ring portion 22 are rubber cushion, the first glue ring portion 21 and
The integration connection of second glue ring portion 22.
For the structure of above-mentioned piston core 1, it is specially：As shown in Fig. 2 piston core 1 is set to multi-diameter shaft, the edge of piston core 1
Axially offer through hole.
Further, as shown in Fig. 2 the part that can be crimped in the second glue ring portion 22 with cylinder sleeve is contact site 223, contact site
223 be annular protrusion, and the axial cross section width (distance in the horizontal direction i.e. as shown in Figure 2) of annular protrusion is along away from circle
The direction of the heart diminishes.It should be noted that with the growth of mud piston working time, the contact site of the second glue ring portion 22
223 can reduce because of abrasion the pressure between the second glue ring portion 22 and cylinder sleeve, so as to have impact between the second glue ring portion 22 and cylinder sleeve
Sealing, and then have impact on the operating efficiency of mud piston；However, above-mentioned setting of the present utility model make it is frayed after
Contact site 223 increases the contact area with cylinder sleeve, and compensate for the second glue ring portion 22 with this influences slush pump to live because frayed
The sealing of plug, and then add the service life of glue ring 2, that is, the service life of mud piston is added, simultaneously, it is ensured that
The higher operating efficiency of mud piston length.
It is preferred that, the axial cross section of above-mentioned annular protrusion is triangle.
Further, referring to the structural representation of Fig. 3 and Fig. 4, Fig. 3 for the utility model piston core 1, Fig. 4 is that this practicality is new
The structural representation of type the first glue ring portion.Radially opened up in the first glue ring portion 21 as shown in figure 3, the outer wall of piston core 1 corresponds to
Have the first groove 11, as shown in figure 4, the inner surface integrated setting of the first glue ring portion 21 have with the first groove 11 coincide it is first convex
Platform 211, further limit the first glue ring portion 21 and the displacement of piston core 1 in the axial direction, and then effectively raise mud with this
Stability of the stock pump piston in motion process, and mud piston life-span.
It is preferred that, as shown in Figures 3 and 4, the first groove 11 and first boss 211 are set to multiple.
Further, referring to Fig. 5, Fig. 5 is the structural representation of the utility model the second glue ring portion.As shown in figure 3, piston core
1 outer wall, which corresponds in the second glue ring portion 22, radially offers the second groove 12, as shown in figure 5, the inner surface of the second glue ring portion 22
Integrated setting has the second boss 221 being coincide with the second groove 12, and the second glue ring portion 22 and piston are further limit with this
The displacement of core 1 in the axial direction, and then stability of the mud piston in motion process is effectively raised, and slush pump is lived
The life-span of plug.
It is preferred that, as depicted in figs. 3 and 5, the second groove 12 and second boss 221 are set to multiple.
Further, as shown in figure 3, the outer wall of piston core 1 corresponds in the first glue ring portion 21 offers the 3rd groove vertically
13, as shown in figure 4, the inner surface integrated setting of the first glue ring portion 21 has the 3rd boss 212 being coincide with the 3rd groove 13, with this
The first glue ring portion 21 and the displacement of piston core 1 diametrically are further limit, and then effectively raises mud piston and is existed
Stability in motion process, and mud piston life-span.
It is preferred that, as shown in Figures 3 and 4, the 3rd groove 13 and the 3rd boss 212 are set to multiple.
Further, as shown in figure 3, the outer wall of piston core 1, which corresponds in the second glue ring portion 22, radially offers the 4th groove
14, as shown in figure 4, the inner surface integrated setting of the second glue ring portion 22 has the 4th boss 222 being coincide with the 4th groove 14, with this
The second glue ring portion 22 and the displacement of piston core 1 diametrically are further limit, and then effectively raises mud piston and is existed
Stability in motion process, and mud piston life-span.
It is preferred that, as depicted in figs. 3 and 5, the 4th groove 14 and the 4th boss 222 are set to multiple.
Referring to Fig. 6, Fig. 6 is the working state schematic representation of the utility model mud piston.Based on above-mentioned, the utility model
The making of mud piston and the course of work are：As shown in Figures 2 to 6, the first glue ring portion 21 of glue ring 2 is socketed on piston core
Outside 1, so that the end face of the first glue ring portion 21 is fitted with piston core 1, while the inner surface of the first glue ring portion 21 and the outer wall of piston core 1
Laminating；Second glue ring portion 22 of glue ring 2 is socketed on outside piston core 1, so that the end face of the second glue ring portion 22 and the first glue ring
The other end of portion 21 is fitted, while the inner surface of the second glue ring portion 22 is fitted with the outer wall of piston core 1；Make piston core by sulfuration process
1st, the first glue ring portion 21 and the vulcanization of the second glue ring portion 22 are integral；
As shown in fig. 6, in use, as mud piston moves reciprocatingly in cylinder sleeve 3, the outer surface of the first glue ring portion 21
Be formed with gap between the inwall of cylinder sleeve 3, at the same the first glue ring portion 21 play a part of axially support, the outer surface of the second glue ring portion 22 with
Crimped between the inwall of cylinder sleeve 3, while the second glue ring portion 22 mainly plays radial support, mud piston and cylinder sleeve are made with this
Possesses good sealing between 3, the now deformation of the second glue ring portion 22 is only the second glue ring portion 22 elastic deformation of itself.
Have it is above-mentioned understand, the utility model mud piston is by setting by table in the second glue ring portion 22 by glue ring 2
It is entity that face, which is fitted with the outer wall of piston core 1 between setting, the i.e. inner surface of the second glue ring portion 22 and the outer wall of piston core 1, be instead of with this
Former mud piston is in the gap of relevant position, while the deformation for making the second glue ring portion 22 is only the second glue ring portion 22 bullet of itself
Property deformation, that is, the deformation that glue ring 2 occurs under mud piston high temperature, the working environment of high pressure is effectively reduced, so as to protect
The sealing between mud piston and cylinder sleeve 3 has been demonstrate,proved, and then has effectively increased the operating efficiency of mud piston.
Claims (10)
1. a kind of mud piston, including piston core (1), and it is fixedly sheathed in the glue ring (2) of piston core (1) outside, glue ring (2)
It is divided into the first glue ring portion (21), and the second glue ring portion (22) that can be crimped with inboard wall of cylinder liner, the first glue ring portion (21) vertically
And second be fixedly connected between glue ring portion (22), the first glue ring portion (21) inner surface is fitted with piston core (1) outer wall, and its feature exists
In：Second glue ring portion (22) inner surface is fitted with piston core (1) outer wall.
2. mud piston according to claim 1, it is characterised in that：First glue ring portion (21) is rubber cup, second
Glue ring portion (22) is rubber cushion.
3. mud piston according to claim 1, it is characterised in that：First glue ring portion (21) and the second glue ring portion (22)
It is rubber cup, the first glue ring portion (21) and the integration connection of the second glue ring portion (22).
4. mud piston according to claim 1, it is characterised in that：First glue ring portion (21) and the second glue ring portion (22)
It is rubber cushion, the first glue ring portion (21) and the integration connection of the second glue ring portion (22).
5. mud piston according to claim 1, it is characterised in that：It can be crimped in second glue ring portion (22) with cylinder sleeve
Part is contact site (223), and contact site (223) is annular protrusion, side of the axial cross section width edge away from the center of circle of annular protrusion
To diminishing.
6. mud piston according to claim 5, it is characterised in that：The axial cross section of annular protrusion is triangle.
7. mud piston according to claim 1, it is characterised in that：Piston core (1) outer wall corresponds to the first glue ring portion
(21) the first groove (11) is radially offered on, first glue ring portion (21) inner surface integrated setting has and the first groove (11)
Identical first boss (211).
8. the mud piston according to any one of claim 1-7, it is characterised in that：Piston core (1) outer wall corresponds to
Radially offer the second groove (12) in second glue ring portion (22), second glue ring portion (22) inner surface integrated setting has and the
The identical second boss (221) of two grooves (12).
9. mud piston according to claim 1, it is characterised in that：Piston core (1) outer wall corresponds to the first glue ring portion
(21) the 3rd groove (13) is offered on vertically, first glue ring portion (21) inner surface integrated setting has and the 3rd groove (13)
The 3rd identical boss (212).
10. the mud piston according to claim 1,2,3,4,5,6,7 or 9, it is characterised in that：Piston core (1) outer wall
Corresponding to radially offering the 4th groove (14), second glue ring portion (22) inner surface integrated setting in the second glue ring portion (22)
There is the 4th boss (222) being coincide with the 4th groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214554.0U CN206555084U (en) | 2017-03-07 | 2017-03-07 | Mud piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214554.0U CN206555084U (en) | 2017-03-07 | 2017-03-07 | Mud piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206555084U true CN206555084U (en) | 2017-10-13 |
Family
ID=60363610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720214554.0U Expired - Fee Related CN206555084U (en) | 2017-03-07 | 2017-03-07 | Mud piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206555084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869429A (en) * | 2017-12-01 | 2019-06-11 | 中国飞机强度研究所 | A kind of novel friction type shimmy-damper |
-
2017
- 2017-03-07 CN CN201720214554.0U patent/CN206555084U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869429A (en) * | 2017-12-01 | 2019-06-11 | 中国飞机强度研究所 | A kind of novel friction type shimmy-damper |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171013 Termination date: 20200307 |