CN209671194U - A kind of bi-metal liner that limit screw cap is set - Google Patents
A kind of bi-metal liner that limit screw cap is set Download PDFInfo
- Publication number
- CN209671194U CN209671194U CN201822181525.6U CN201822181525U CN209671194U CN 209671194 U CN209671194 U CN 209671194U CN 201822181525 U CN201822181525 U CN 201822181525U CN 209671194 U CN209671194 U CN 209671194U
- Authority
- CN
- China
- Prior art keywords
- screw cap
- housing
- limit screw
- inner sleeve
- confined planes
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a kind of bi-metal liners that limit screw cap is arranged, and belong to slush pump parts technical field.Including housing and the inner sleeve being sleeved in housing, housing is hot-forming using carbon steel, and inner sleeve is cast using rich chromium cast iron, is interference fit between inner sleeve and housing；External thread section is arranged in the both ends of the outer wall of housing, and housing both ends are threadedly coupled setting limit screw cap；Limit screw cap is that the confined planes other end that cylinder-shaped and one end is setting round tube hole is opening, and the internal diameter that the diameter of the round tube hole on confined planes is greater than inner sleeve is less than the outer diameter of inner sleeve；Internal screw thread is arranged in limit screw cap inner wall, and several pin shaft holes are arranged in limit screw cap outer wall；The outer diameter of limit screw cap and the outer diameter of housing are consistent；The seam allowance that the outer rim setting of the both ends of the surface of inner sleeve is equipped with confined planes, the thickness of confined planes and the depth of seam allowance are consistent.The utility model is highly-safe by that can play position-limiting action to inner sleeve, prevent inner sleeve from falling off in use in the both ends of housing setting limit screw cap.
Description
Technical field
The utility model relates to a kind of bi-metal liners that limit screw cap is arranged, and belong to slush pump parts technical field.
Background technique
Slush pump is in drilling process to the machinery of the conveying flushing liquors such as mud or water in drilling.Slush pump is that probing is set
Standby important component.Common slush pump is piston type or plunger type, and the crank up of pump, crankshaft are driven by engine
By crosshead, band piston or plunger move reciprocatingly in pumping cylinder again.In the case where sucking the alternating action with dump valve, realize
The purpose of force feed and circulating flushing washing lotion.Mud slurry pump cylinder jacket is the important easy-abrasion part of fluid end of pump, therefore mud pumping cylinder
The service life of set directly affects the service life of slush pump.Cylinder sleeve working surface has piston ring due to being in contact with the combustion gas of high temperature, high pressure
Make high speed reciprocating motion on its surface, this just determines that cylinder sleeve will not only have enough intensity and a rigidity, but also must high temperature resistant,
It is corrosion-resistant, wear-resistant.
Bi-metal liner is to be most widely used at present and one of the maximum fluid end of pump accessory of dosage.Double gold
Belong to the advantages of cylinder sleeve combines the high abrasion housing of hot forging and high-chromium wear-resistant anticorrosive inner sleeve, housing uses Fine Steel Casting iron hot pressing one
Secondary molding, inner sleeve are formed using rich chromium cast iron centrifugal casting, and wherein housing tensile strength is high, hardness after inner sleeve is thermally treated
Height is able to bear biggish mud pressure, and inner surface is smooth, is conducive to the high-speed motion of piston.
Bi-metal liner is assembled by hot charging, and during the work time, piston ring moves reciprocatingly in bimetallic set,
Bimetallic set bears axial impact force, and after long-play, bi-metal liner greenhouse rises, and inner sleeve easily occurs de-
It falls, seriously affects the safety used.
Utility model content
The purpose of the utility model is to provide a kind of bi-metal liners that limit screw cap is arranged, and ask to solve above-mentioned technology
Topic.
To achieve the goals above, the technical solution adopted in the utility model is:
A kind of bi-metal liner that limit screw cap is arranged, including housing and the inner sleeve being sleeved in housing, housing uses carbon
Plain steel is hot-forming, and inner sleeve is cast using rich chromium cast iron, is interference fit between inner sleeve and housing；The two of the outer wall of housing
End setting external thread section, housing both ends are threadedly coupled setting limit screw cap；The limit screw cap is that cylinder-shaped and one end is to set
The confined planes other end of round tube hole is set as opening, the internal diameter that the diameter of the round tube hole on confined planes is greater than inner sleeve is less than the outer of inner sleeve
Diameter；Internal screw thread is arranged in limit screw cap inner wall, and several pin shaft holes are arranged in limit screw cap outer wall；The outer diameter of limit screw cap and housing it is outer
Diameter is consistent；The seam allowance that the outer rim setting of the both ends of the surface of inner sleeve is equipped with confined planes, the thickness of confined planes and the depth of seam allowance are consistent.
Technical solutions of the utility model further improvement lies in that: further include being inserted into pin shaft hole for dismounting limit spiral shell
The pin shaft of cap.
Technical solutions of the utility model further improvement lies in that: pin shaft hole be arranged 2~4.
Technical solutions of the utility model further improvement lies in that: the outer wall setting that the part of seam allowance is protruded at inner sleeve both ends is logical
Hole.
By adopting the above-described technical solution, the technical effect that the utility model obtains has:
The utility model can play position-limiting action to inner sleeve, prevent interior by the way that limit screw cap is arranged at the both ends of housing
Set falls off in use, improves the safety when bi-metal liner uses.
Pin shaft hole is arranged in limit screw cap outer wall in the utility model, inserts and is used in pin shaft hole when installing limit screw cap
The pin shaft of limit screw cap is dismounted, staff easily realizes dismounting, safety saves by pulling pin shaft come rotary spacing nut
Power.
The outer diameter of limit screw cap and the outer diameter of housing are consistent in the utility model, the outer rim of the both ends of the surface of inner sleeve also set up with
The equipped seam allowance of confined planes, the thickness of confined planes and the depth of seam allowance are consistent, so as to keep bi-metal liner to tie on the whole
Structure will not change, and not influence the use of slush pump complete machine.
The utility model is simple and reasonable, highly-safe；Disassembly can be easily repaired simultaneously, is used on the whole
Service life extends, and comprehensive service performance is good.
Detailed description of the invention
Fig. 1 is the utility model stereoscopic schematic diagram；
Fig. 2 is the utility model housing schematic diagram；
Fig. 3 is the utility model inner sleeve schematic diagram；
Fig. 4 is the utility model limit screw cap schematic diagram；
Wherein, 1, housing, 1-1, external thread section, 2, inner sleeve, 3, limit screw cap, 3-1, confined planes, 4, pin shaft hole, 5, only
Mouthful.
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 bi-metal liners that limit screw cap is arranged, to bi-metal liner in the prior art
The both ends of jacket and inner sleeve carried out Curve guide impeller.Here is specific embodiment:
The bi-metal liner of the setting limit screw cap of the utility model, mainly to bimetallic cylinder barrel in the prior art
The both ends of housing are provided with limit screw cap to prevent inner sleeve from falling off in use.
The bi-metal liner includes housing 1 and the inner sleeve 2 that is sleeved in housing 1, and wherein housing 1 is hot pressed into using carbon steel
Type, inner sleeve 2 are cast using rich chromium cast iron, are interference fit between inner sleeve 2 and housing 1.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, external thread section 1-1 is set at the both ends of the outer wall of housing 1, at 1 both ends of housing
It is threadedly coupled setting limit screw cap 3.The limit screw cap 3 prevents inner sleeve 2 from using for being defined to the position of inner sleeve 2
Position occurs mobile and causes to fall off in the process.Limit screw cap 3 is that the confined planes that cylinder-shaped and one end is setting round tube hole are another
One end is opening, and the internal diameter that the diameter of the round tube hole on confined planes 3-1 is greater than inner sleeve is less than the outer diameter of inner sleeve, so as to not
In the case where influencing 2 normal use of inner sleeve, limit screw cap 3 is played to the position-limiting action of inner sleeve.Interior spiral shell is arranged in 3 inner wall of limit screw cap
Line, limit screw cap 3 are connected through a screw thread the both ends that housing 1 is arranged in.The outer diameter of limit screw cap 3 is consistent with the outer diameter of housing 1, should
Setting is able to maintain bi-metal liner, and structure will not change on the whole.
The utility model also sets up the seam allowance 5 being equipped with confined planes 3-1, confined planes 3-1 in the outer rim of the both ends of the surface of inner sleeve 2
Thickness it is consistent with the depth of seam allowance 5.When by 3 thread set of limit screw cap to the both ends of housing 1, confined planes 3-1 can be just
It is located in seam allowance 5 well；Confined planes 3-1 and the outer end face of inner sleeve 2 form a complete plane at this time.Specific as shown in Figure 1, Figure 2, figure
Shown in 3.
Several pin shaft holes 4 are arranged in 3 outer wall of limit screw cap in the utility model, when installing limit screw cap 3 in pin shaft hole 4
The pin shaft for dismounting limit screw cap 3 is inserted, staff realizes dismounting by pulling pin shaft come rotary spacing nut 3.Having
In the implementation of body, the usually setting 2~4 of pin shaft hole 4.
Through-hole is arranged in outer wall of the utility model in the part of 2 both ends of inner sleeve protrusion seam allowance 5, which is interior in order to dismantle
Cover 2 convenience.After inner sleeve 2 is worn using a period of time, the outer wall for the part for being suspended to 2 both ends of inner sleeve protrusion seam allowance 5 is used
Through-hole in, the other end of housing 1 is fixed, using machine by hook pull inner sleeve 2, inner sleeve 2 can be torn open from housing 1
It unloads down.
The utility model can play position-limiting action to inner sleeve, prevent interior by the way that limit screw cap is arranged at the both ends of housing
Set falls off in use, improves the safety when bi-metal liner uses.
The utility model is simple and reasonable, long service life, highly-safe, disassembly easy to repair, comprehensive service performance
Well.
Claims (4)
1. a kind of bi-metal liner that limit screw cap is arranged, including housing (1) and the inner sleeve (2) being sleeved in housing (1), housing
(1) hot-forming using carbon steel, inner sleeve (2) is cast using rich chromium cast iron, it is characterised in that: inner sleeve (2) and housing (1)
Between for interference fit；External thread section (1-1) is arranged in the both ends of the outer wall of housing (1), and housing (1) both ends are threadedly coupled setting limit
Position nut (3)；The limit screw cap (3) is that confined planes (3-1) other end that cylinder-shaped and one end is setting round tube hole is to open
Mouthful, the internal diameter that the diameter of the round tube hole on confined planes (3-1) is greater than inner sleeve is less than the outer diameter of inner sleeve；Limit screw cap (3) inner wall is set
Internal screw thread is set, several pin shaft holes (4) are arranged in limit screw cap (3) outer wall；The outer diameter of limit screw cap (3) and the outer diameter one of housing (1)
It causes；Outer rim setting and confined planes (3-1) the equipped seam allowance (5) of the both ends of the surface of inner sleeve (2), the thickness of confined planes (3-1) with only
The depth of mouth (5) is consistent.
2. a kind of bi-metal liner that limit screw cap is arranged according to claim 1, it is characterised in that: further include being inserted into
For dismounting the pin shaft of limit screw cap (3) in pin shaft hole (4).
3. according to claim 1 or 2 it is described in any item it is a kind of be arranged limit screw cap bi-metal liners, it is characterised in that: pin
Axis hole (4) is arranged 2~4.
4. according to claim 1 or 2 it is described in any item it is a kind of be arranged limit screw cap bi-metal liners, it is characterised in that: it is interior
Through-hole is arranged in the outer wall for covering the part of (2) both ends protrusion seam allowance (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822181525.6U CN209671194U (en) | 2018-12-18 | 2018-12-18 | A kind of bi-metal liner that limit screw cap is set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822181525.6U CN209671194U (en) | 2018-12-18 | 2018-12-18 | A kind of bi-metal liner that limit screw cap is set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209671194U true CN209671194U (en) | 2019-11-22 |
Family
ID=68563407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822181525.6U Expired - Fee Related CN209671194U (en) | 2018-12-18 | 2018-12-18 | A kind of bi-metal liner that limit screw cap is set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209671194U (en) |
-
2018
- 2018-12-18 CN CN201822181525.6U patent/CN209671194U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191122 Termination date: 20201218 |