CN206561247U - A kind of mud relief valve positioning hole valve port trimming device - Google Patents
A kind of mud relief valve positioning hole valve port trimming device Download PDFInfo
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- CN206561247U CN206561247U CN201720153543.6U CN201720153543U CN206561247U CN 206561247 U CN206561247 U CN 206561247U CN 201720153543 U CN201720153543 U CN 201720153543U CN 206561247 U CN206561247 U CN 206561247U
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- trimming
- valve
- spindle nose
- positioning hole
- spheroid
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Abstract
A kind of mud relief valve positioning hole valve port trimming device, including trimming axis body and acting on the spheroid at safety valve positioning hole valve port, the trimming axis body includes the trimming body of rod of the trimming spindle nose and protruding valve body of safety valve coordinated with mud relief valve valve interior wall gap, the trimming body of rod is fixedly connected with trimming spindle nose, the cone of positioning ball is provided with the head end of trimming spindle nose, cone is set to big end close to one end of trimming spindle nose, the one end of cone away from trimming spindle nose is set to small end, in the center of cone small end provided with the interior concave spherical surface for installing spheroid, the spheroid interference fit is flush-mounted at interior concave spherical surface, the described one end of the trimming body of rod away from spheroid is provided with the percussion platform for facilitating hammer body to tap trimming.
Description
Technical field
The utility model is related to a kind of slush pump corollary equipment field, particularly a kind of mud relief valve positioning hole valve port
Trimming device.
Background technology
At present, small slush pump is approved with its compact conformation, dependable performance, stably, extremely market in BW classes, in engineering drill
Machine, non-dredging guiding driller, configure more on rock-core borer.As main frame corollary equipment, slush pump performance it is whether reliable non-
Often important, because it directly affects the performance of main frame during work, the selection reliable slush pump of performance is to master in configuring
It is very necessary for machine.
Safety valve is an important component in slush pump, mainly undertakes the effect of regulation mud pressure, whether right it is reliably
The service behaviour influence of slush pump is larger, therefore controls manufacture and assembling quality is most important, the especially foozle of valve body,
The positioning and water shutoff of valve element are directly affected, because existing valve body has foozle, valve element positioning hole and valve element water shutoff aperture are normal
Drainage can often occur because of concentricity, if mud leakage explanation valve element has gap with valve port, this does not allow,
Usual solution is to use valve element facing-up valve port, and edge of valve's mouth need to be with valve element to grinding, and the more difficult control of position of related features so both takes
When take a lot of work again, improve rework rate during safety valve assembling, add production cost, influence production efficiency.
The content of the invention
The technical problems to be solved in the utility model is in view of the shortcomings of the prior art, proposes a kind of practical, safety, can
Lean on, the mud relief valve positioning hole valve port trimming device for occurring mud leakage phenomenon can be avoided.
The technical problems to be solved in the utility model is achieved through the following technical solutions, and a kind of mud relief valve is determined
Position ports valve mouthful trimming device, is characterized in：Including trimming axis body and acting on the spheroid at safety valve positioning hole valve port, the punching
Side axis body includes the trimming of the trimming spindle nose and protruding valve body of safety valve coordinated with mud relief valve valve interior wall gap
The body of rod, the trimming body of rod is fixedly connected with trimming spindle nose, is provided with the cone of positioning ball in the head end of trimming spindle nose, cone is close to punching
One end of side spindle nose is set to big end, and the one end of cone away from trimming spindle nose is set to small end, set in the center of cone small end
There is the interior concave spherical surface for installing spheroid, the spheroid interference fit is flush-mounted at interior concave spherical surface, and the trimming body of rod is away from spheroid
One end be provided with facilitate hammer body tap trimming percussion platform.
The technical problems to be solved in the utility model can also come further to realize by the following technical programs, the spheroid
For steel ball.
The technical problems to be solved in the utility model can also come further to realize by the following technical programs, the trimming
Spindle nose is cylinder spindle nose.
The technical problems to be solved in the utility model can also be come further to realize by the following technical programs, described to tap
Platform is provided in round platform, and the diameter of circular platform is more than the diameter of the trimming body of rod.
The technical problems to be solved in the utility model can also be come further to realize by the following technical programs, flat tapping
Transition rounding is provided between platform and the trimming body of rod.
Compared with prior art, the utility model is simple in construction, reasonable in design, easy to use；Matched somebody with somebody using interference is arranged on
Close and be flush-mounted in spheroid at interior concave spherical surface, solve the concentric requirement of valve port of valve body and positioning hole, it is ensured that valve port wants refinement
Degree；Utilize the trimming spindle nose coordinated with mud relief valve valve interior wall gap, it is ensured that valve body valve element positioning hole and valve port
Axiality, solves the seepy question occurred often in safety valve test run, lifts the reliability of safety valve, so as to ensure that mud
Service behaviour when stock pump is constructed.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model use state.
Embodiment
A kind of mud relief valve positioning hole valve port trimming device, including trimming axis body and act on safety valve positioning hole 8
Spheroid 1 at valve port, the trimming axis body include with the inwall gap of mud relief valve valve body 7 coordinate trimming spindle nose 3 and to
The trimming body of rod 4 of valve body of safety valve 7 is overhang, the trimming body of rod is fixedly connected with trimming spindle nose, is provided with the head end of trimming spindle nose
The cone 2 of positioning ball, cone 2 is set to big end close to one end of trimming spindle nose, and the one end of cone 2 away from trimming spindle nose is set
For small end, in the center of the small end of cone 2 provided with the interior concave spherical surface for installing spheroid, the interference fit of spheroid 1 is flush-mounted in interior
At concave spherical surface, the described one end of the trimming body of rod away from spheroid is provided with the percussion platform 6 for facilitating hammer body to tap trimming.The utility model
Trimming axis body selects 40Cr materials, and modifier treatment HB241-286 after roughing, trimming spindle nose tolerance presses mud relief valve valve body
Positioning hole matches somebody with somebody smart car, and concave spherical surface need to be with car in trimming spindle nose one-time positioning in 0.06-0.09 or so, nose cone in control gap
Go out, indent sphere size matches somebody with somebody car by steel ball actual size, and magnitude of interference control is 0.05 or so, and depth is slightly larger than steel ball radius
Can, processing of turning blue；The steel ball selected is positioned at interior concave spherical surface and positioned, beats and is embedded in interior concave spherical surface to complete laminating.
The spheroid 1 is steel ball.The trimming spindle nose is cylinder spindle nose.The percussion platform 6 is provided in round platform,
The diameter of circular platform is more than the diameter of the trimming body of rod.Transition rounding 5 is provided between platform and the trimming body of rod tapping.The punching
Side spindle nose coordinates with valve body for gap（Gap 0.05-0.08 or so）Positioning, steel ball interference fit is embedded in concave spherical surface in axis body
In, controlled with the coaxiality error of benchmark trimming spindle nose 0.02 or so.The utility model trimming spindle nose stretches into valve body positioning hole 8
Afterwards, the steel ball of front end be located at valve port, when fiercelyed attack with iron hammer the trimming body of rod right-hand member when, positioned at the steel ball of valve port（Steel ball is harder）Then exist
Valve port squeezes out a round edge, and this round edge and positioning hole are definitely concentric, and safe valve core and valve port are by seamless paste during assembling
Close, so as to avoid the generation that mud is leaked.
Claims (5)
1. a kind of mud relief valve positioning hole valve port trimming device, it is characterised in that：Including trimming axis body and acting on safety
Spheroid at valve positioning hole valve port, the trimming axis body includes the trimming spindle nose coordinated with mud relief valve valve interior wall gap
With the trimming body of rod of protruding valve body of safety valve, the trimming body of rod is fixedly connected with trimming spindle nose, is set in the head end of trimming spindle nose
There is the cone of positioning ball, cone is set to big end close to one end of trimming spindle nose, and the one end of cone away from trimming spindle nose is set
For small end, in the center of cone small end provided with the interior concave spherical surface for installing spheroid, the spheroid interference fit is flush-mounted in indent
At sphere, the described one end of the trimming body of rod away from spheroid is provided with the percussion platform for facilitating hammer body to tap trimming.
2. mud relief valve positioning hole valve port trimming device according to claim 1, it is characterised in that：The spheroid is
Steel ball.
3. mud relief valve positioning hole valve port trimming device according to claim 1, it is characterised in that：The trimming axle
Head is cylinder spindle nose.
4. mud relief valve positioning hole valve port trimming device according to claim 1, it is characterised in that：It is described to tap flat
Platform is provided in round platform, and the diameter of circular platform is more than the diameter of the trimming body of rod.
5. mud relief valve positioning hole valve port trimming device according to claim 4, it is characterised in that：Tapping platform
Transition rounding is provided between the trimming body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720153543.6U CN206561247U (en) | 2017-02-21 | 2017-02-21 | A kind of mud relief valve positioning hole valve port trimming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720153543.6U CN206561247U (en) | 2017-02-21 | 2017-02-21 | A kind of mud relief valve positioning hole valve port trimming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206561247U true CN206561247U (en) | 2017-10-17 |
Family
ID=60031306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720153543.6U Active CN206561247U (en) | 2017-02-21 | 2017-02-21 | A kind of mud relief valve positioning hole valve port trimming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206561247U (en) |
-
2017
- 2017-02-21 CN CN201720153543.6U patent/CN206561247U/en active Active
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