CN104712544B - A kind of anti-loose method of drilling pump valve gap - Google Patents
A kind of anti-loose method of drilling pump valve gap Download PDFInfo
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- CN104712544B CN104712544B CN201510038919.4A CN201510038919A CN104712544B CN 104712544 B CN104712544 B CN 104712544B CN 201510038919 A CN201510038919 A CN 201510038919A CN 104712544 B CN104712544 B CN 104712544B
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- wiggling
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Abstract
The invention discloses the anti-loose method of a kind of drilling pump valve gap, depend on a kind of adjustable locking device, step includes: step 1, installation retaining dish on valve gap；Step 2, assemble adjustable locking device；Step 3, adjustment push rod compress thrust button；Step 4, draw locking steel wire and carry out locking fixing to holding out against screw from holding out against the screw slot to both sides, wiggling and pressing block rear portion,.The method of the present invention, carrying out locking to the valve gap of fluid cylinder, owing to have employed the Relaxation Methods of machinery, effectively prevent that valve gap screw thread from producing under drilling pump working condition is loosening, effectively prevent the valve plug sealing ring thorn leakage caused because valve gap loosens, improve drilling pump reliability of operation.
Description
Technical field
The invention belongs to oil-well drilling equipment technical field, relate to the anti-loose method of a kind of drilling pump valve gap.
Background technology
At present, in drilling pump fluid end assembly, the plug of dump valve all uses the valve gap of big pitch trapezoidal thread
, owing to drilling pump operationally internal mud pressure is higher, and there is bigger pressure oscillation in compacted form,
Valve gap screw thread is easy to loosen due to vibration so that valve gap plug does not presses tightly, and valve bonnet seal circle lost efficacy rapidly,
Thus causing the mud of drilling pump to be revealed, the work efficiency of product quality and drillng operation significantly reduces, with
Time also pollute environment.
Summary of the invention
It is an object of the invention to provide the anti-loose method of a kind of drilling pump valve gap, solve drilling pump and running
During fluid cylinder valve gap easily loosen, valve bonnet seal lost efficacy, cause the problem that the mud of drilling pump is revealed.
The technical solution adopted in the present invention is, the anti-loose method of a kind of drilling pump valve gap, depends on one
Adjustable locking device, specifically implements according to following steps:
Step 1, on valve gap install retaining dish
First pass through a circle screw to be fixed as one with valve gap by retaining dish, then by valve gap and fluid cylinder by specifying
Moment of torsion is tightened；Or after valve gap is first installed on fluid cylinder, thrust button is installed；
Step 2, assemble adjustable locking device
Fixed cylinder pin screw is tightened on fluid cylinder and maintains static, will be swung by fixed cylinder pin screw
Briquetting is arranged on fluid cylinder upper surface, it is ensured that wiggling and pressing block is free along the cylindrical bar on fixed cylinder pin screw top
Rotate, then push rod, hold out against screw and be attached separately in front end unthreaded hole and the rear threads hole of wiggling and pressing block；
Step 3, adjustment push rod compress thrust button
After valve gap tightens, push rod step 2 installed pushes in a teeth groove of thrust button circumference nearby,
Then hold out against screw the cylindrical bar of push rod front end held out against in this teeth groove of thrust button by tightening, it is ensured that
Push rod holds out against thrust button and does not loosens；
Step 4, fixing hold out against screw
Locking steel wire is drawn to holding out against screw from holding out against the screw slot to both sides, wiggling and pressing block rear portion
Carry out locking fixing,.
The anti-loose method of the drilling pump valve gap of the present invention, is further characterized in that:
The structure of this is adjustable locking device is:
At valve gap top circumference equipped with retaining dish, retaining dish is fixing with valve gap to be connected；Master on fluid cylinder top
Hole side has screwed hole, is provided with fixed cylinder pin screw by this screwed hole, this fixed cylinder pin spiral shell
Wiggling and pressing block is pressed abd fixed on fluid cylinder upper surface by nail, has logical in wiggling and pressing block along horizontal center line
Hole, is provided with push rod in wiggling and pressing block through hole front end in one section of unthreaded hole of retaining dish, push rod front end
Cylindrical bar and the teeth groove apical grafting on retaining dish circumference；The screwed hole of wiggling and pressing block through hole back-end is set with
Hold out against screw.
Hold out against to be connected between head of screw and the slot of both sides, wiggling and pressing block rear portion that screw exposes and have lock
Tight steel wire.
The invention has the beneficial effects as follows, by this anti-loose method, the valve gap of hydraulic cylinder of drill pump is applied reversely
Power, can effectively prevent loosening of valve gap screw thread, improve the continuous normal working hours of drilling pump, reduce
The probability of valve plug sealing ring thorn leakage and maintenance cost；The structure letter of the adjustable locking device used by the method
Single novel, easy to operate, the most do not change the structure of fluid cylinder body.
Accompanying drawing explanation
Fig. 1 is the anti-loose structure exploded perspective view that the inventive method uses；
Fig. 2 is the adjustable locking device assembling schematic diagram that the inventive method uses；
Fig. 3 is the wiggling and pressing block sectional view of the adjustable locking device that the inventive method uses；
Fig. 4 is the push rod schematic diagram of the adjustable locking device that the inventive method uses；
Fig. 5 is the fixed cylinder pin screw schematic diagram of the adjustable locking device that the inventive method uses；
Fig. 6 is the valve gap retaining dish schematic diagram of the adjustable locking device that the inventive method uses；
Fig. 7 is the anti-loose structure entirety assembling schematic diagram that the inventive method uses.
In figure, 1. fluid cylinder, 2. valve gap, 3. screw, 4. retaining dish, 5. hold out against screw, 6. electric fuse, 7.
Wiggling and pressing block, 8. fixed cylinder pin screw, 9. push rod.
Detailed description of the invention
The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
With reference to Fig. 1-Fig. 7, the anti-loose method of drilling pump valve gap of the present invention uses a kind of adjustable locking device,
The structure of this is adjustable locking device is:
Being provided with valve gap 2 in the screwed hole on fluid cylinder 1 top of drilling pump equipment, (parts 1,2 belong to
Parts on drilling pump equipment), at valve gap 2 top circumference equipped with retaining dish 4, retaining dish 4 is by multiple
Screw 3 is radially fixed with valve gap 2 is connected (retaining dish 4 and valve gap 2 can also be made of one)；At liquid
The main aperture side on cylinder 1 top has screwed hole, is provided with fixed cylinder pin screw 8 by this screwed hole,
Wiggling and pressing block 7 is pressed abd fixed on fluid cylinder 1 upper surface by this fixed cylinder pin screw 8, at wiggling and pressing block 7
Middle have through hole along horizontal center line, in wiggling and pressing block 7 through hole front end towards one section of unthreaded hole of retaining dish 4
In push rod 9 is installed, the cylindrical bar of push rod 9 front end and the teeth groove apical grafting on retaining dish 4 circumference；At pendulum
The screwed hole of dynamic pressure block 7 through hole back-end is set with and holds out against screw 5, hold out against the head of screw that screw 5 exposes
And it is connected between the slot of both sides, wiggling and pressing block 7 rear portion and has locking steel wire 6.
Fixed cylinder pin screw 8 lower semisection periphery is screw thread, and upper semisection periphery is polished rod, it is simple to swing pressure
The swing of block 7.
Push rod 9 second half section is polished rod, and fork-shaped termination, front end is provided with cylindrical bar.
Hold out against screw 5 for adjusting the push rod 9 telescopic location in wiggling and pressing block 7 in the unthreaded hole of front end, with
Just the cylindrical bar of push rod 9 front end is reliable with the teeth groove apical grafting of retaining dish 4, the arc groove of retaining dish 4 circumference
Quantity and shape are arranged according to actual needs.
The inventive method depends on above-mentioned device, specifically implements according to following steps:
Step 1, on valve gap 2 install retaining dish 4:
First pass through a circle screw 3 to be fixed as one with valve gap 2 by retaining dish 4, then by valve gap 2 and fluid cylinder
1 is tightened by the moment of torsion of regulation；Or after valve gap 2 is first installed on fluid cylinder 1, thrust button 4 is installed, see Fig. 1；
Step 2, assemble adjustable locking device:
Fixed cylinder pin screw 8 is tightened on fluid cylinder 1 and maintains static, by fixed cylinder pin screw 8
Wiggling and pressing block 7 is arranged on fluid cylinder 1 upper surface, it is ensured that wiggling and pressing block 7 is along fixed cylinder pin screw 8
The cylindrical bar in portion is free to rotate, then push rod 9, hold out against screw 5 and be attached separately to wiggling and pressing block 7
In front end unthreaded hole and rear threads hole, see Fig. 2, Fig. 3, Fig. 5；
Step 3, adjust push rod 9 and compress thrust button 4:
After valve gap 2 tightens, the push rod 9 step 2 installed pushes of thrust button 4 circumference nearby
In teeth groove, then hold out against screw 5 cylindrical bar of push rod 9 front end is held out against at thrust button 4 by tightening
In this teeth groove, it is ensured that push rod 9 holds out against thrust button 4 and do not loosens, and sees Fig. 4, Fig. 6；
Step 4, the fixing screw 5 that holds out against:
Locking steel wire 6 is drawn to holding out against from holding out against the screw 5 slot to both sides, wiggling and pressing block 7 rear portion
Screw 5 carries out locking fixing, see Fig. 7.
The present invention uses said method, carries out locking to the valve gap 2 of fluid cylinder 1, owing to have employed machinery
Relaxation Methods, effectively prevents what valve gap screw thread from producing under drilling pump working condition to loosen, effectively prevent
The valve plug sealing ring thorn leakage caused because valve gap loosens, improves drilling pump reliability of operation.
Claims (3)
1. the anti-loose method of a drilling pump valve gap, it is characterised in that: depend on a kind of adjustable locking device,
Specifically implement according to following steps:
Step 1, installation retaining dish (4) on valve gap (2)
First pass through a circle screw (3) to be fixed as one with valve gap (2) by retaining dish (4), then by valve
Lid (2) is tightened by the moment of torsion of regulation with fluid cylinder (1)；Or valve gap (2) is first installed on fluid cylinder (1)
Rear installation retaining dish (4)；
Step 2, assemble adjustable locking device
Fixed cylinder pin screw (8) is tightened on fluid cylinder (1) and maintains static, by fixed cylinder pin
Wiggling and pressing block (7) is arranged on fluid cylinder (1) upper surface by screw (8), it is ensured that wiggling and pressing block (7) edge
The cylindrical bar on fixed cylinder pin screw (8) top is freely rotatable, then push rod (9), hold out against screw
(5) it is attached separately in front end unthreaded hole and the rear threads hole of wiggling and pressing block (7)；
Step 3, adjustment push rod (9) compress retaining dish (4)
After valve gap (2) tightens, the push rod (9) step 2 installed pushes retaining dish (4) nearby
In one teeth groove of circumference, then by tightening the cylindrical bar holding out against screw (5) by push rod (9) front end
Hold out against in this teeth groove of retaining dish (4), it is ensured that push rod (9) holds out against retaining dish (4) and do not loosens；
Step 4, fixing hold out against screw (5)
Locking steel wire (6) is drawn from holding out against the screw (5) slot to wiggling and pressing block (7) both sides, rear portion
Carry out locking fixing to holding out against screw (5),.
The anti-loose method of drilling pump valve gap the most according to claim 1, it is characterised in that: described
The structure of adjustable locking device is:
Fix with valve gap (2) equipped with retaining dish (4), retaining dish (4) at valve gap (2) top circumference
Connect；Main aperture side on fluid cylinder (1) top has screwed hole, is provided with fixing by this screwed hole
Straight pin screw (8), wiggling and pressing block (7) is pressed abd fixed on fluid cylinder by this fixed cylinder pin screw (8)
(1) upper surface, has through hole along horizontal center line in wiggling and pressing block (7), in wiggling and pressing block (7)
Through hole front end is provided with push rod (9) in one section of unthreaded hole of retaining dish (4), push rod (9) front end
Cylindrical bar and the teeth groove apical grafting on retaining dish (4) circumference；Screw thread at wiggling and pressing block (7) through hole back-end
Hole is set with and holds out against screw (5).
The anti-loose method of drilling pump valve gap the most according to claim 2, it is characterised in that: described
Hold out against and be connected between head of screw and the slot of wiggling and pressing block (7) both sides, rear portion that screw (5) exposes
There is locking steel wire (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510038919.4A CN104712544B (en) | 2015-01-26 | 2015-01-26 | A kind of anti-loose method of drilling pump valve gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510038919.4A CN104712544B (en) | 2015-01-26 | 2015-01-26 | A kind of anti-loose method of drilling pump valve gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104712544A CN104712544A (en) | 2015-06-17 |
| CN104712544B true CN104712544B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510038919.4A Active CN104712544B (en) | 2015-01-26 | 2015-01-26 | A kind of anti-loose method of drilling pump valve gap |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804989B (en) * | 2016-04-15 | 2017-10-31 | 宝鸡石油机械有限责任公司 | Drilling pump bonnet threaded pre-tightening locking device |
| CN112873133B (en) * | 2021-03-26 | 2024-05-31 | 梧州学院 | Screw locking device for underwater nuclear pump and mounting and dismounting method thereof |
| CN113819291B (en) * | 2021-11-25 | 2022-02-08 | 四川宏华电气有限责任公司 | Reciprocating pump knocking-free valve cover device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003001034A1 (en) * | 2001-06-20 | 2003-01-03 | Graco Minnesota Inc. | Pump cylinder lock |
| GB0410263D0 (en) * | 2004-05-10 | 2004-06-09 | Spicket Valves & Pumps Ltd | Valve cap |
| CN201874801U (en) * | 2010-11-23 | 2011-06-22 | 宝鸡石油机械有限责任公司 | Hydraulic drill pump valve compression device |
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- 2015-01-26 CN CN201510038919.4A patent/CN104712544B/en active Active
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| Publication number | Publication date |
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| CN104712544A (en) | 2015-06-17 |
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Effective date of registration: 20210113 Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: 721002 No. 2 Dongfeng Road, Shaanxi, Baoji Patentee before: Baoji Oilfield Machinery Co.,Ltd. |
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| TR01 | Transfer of patent right |