CN205047558U - Buffering filling oil valve , buffering oil replenishing system and deep well rig - Google Patents
Buffering filling oil valve , buffering oil replenishing system and deep well rig Download PDFInfo
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- CN205047558U CN205047558U CN201520731454.6U CN201520731454U CN205047558U CN 205047558 U CN205047558 U CN 205047558U CN 201520731454 U CN201520731454 U CN 201520731454U CN 205047558 U CN205047558 U CN 205047558U
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Abstract
The utility model relates to a buffering filling oil valve, buffering oil replenishing system and deep well rig, it includes the valve body wherein to cushion filling oil valve, parallel connection has first oil circuit and second oil circuit in the valve body, be equipped with first shuttle valve on the first oil circuit, the both sides of do not connecting in waiting to mend the oil piece are equallyd divide at the both ends of first oil circuit and the both ends of second oil circuit, first shuttle valve can be selected and wait to mend an oil great load pressure signal in both sides, and feed back as load feedback signal, carry out the off -load in order to treat the great one side of load pressure of mending the oil piece, be equipped with first check valve and second check valve that the series -opposing connection is connected on the second oil circuit to the feasible benefit oil mechanism that connects between first check valve and second check valve can incline for the negative pressure of treating benefit oil piece mend oil. Through setting up first shuttle valve, first check valve and second check valve, can be to the off -load of the great one side of load pressure to mend oil to the negative pressure side when the one side of treating benefit oil piece appears suddenly inhaling the sky phenomenon, avoid waiting mending oily piece and suffer the damage.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of slow supply oil valve, slow supply oil system and deep drilling rig.
Background technique
At present in deep drilling rig, unit head as critical component, usually by fluid motor-driven.Working principle is mainly and drives oil hydraulic motor work by oil hydraulic pump fuel feeding, after speed reducer slows down, by central shaft by transmission of power to drilling rod.But change at geological condition, unit head is anxious when stopping or commutate suddenly, power head motor can be subject to suddenly larger compression shock.Particularly, to change, the unit head anxious stopping time at geological condition, because load inertia is large, generation emptying phenomenon in the chamber easily causing oil hydraulic motor, causes damage to motor; When wellhole is darker, drilling rod resiliently deformable is serious, and unit head stops, and drilling rod drives unit head reversion, motor also can be caused to inhale empty, easily damage motor.
In order to overcome the problems referred to above; a kind of scheme taked in prior art; as shown in Figure 1; be specially: comprise fuel tank a1, main control valve a2, slow supply oil valve a3, motor a4, repairing pipeline a5, relief valve a6, slippage pump a7, main pump a8 and motor a9; be provided with employing a pair buffer overflow valve a33 and a34 in the first relief valve a21, the first one-way valve a22, selector valve a23, the first overload protection valve a24 and the second overload protection valve a25, slow supply oil valve a3 in main control valve a2 and be connected to the both sides of power head motor a4 in the opposite direction.When load changes, power head motor is under pressure impact, and motor side oil circuit transships, and corresponding buffer overflow valve is opened, and forms path, the oil-feed of oil hydraulic motor and oil return is circulated voluntarily, thus overload oil circuit is cushioned.When unit head suddenly stops or commutates suddenly, because load inertia is large, motor side oil circuit transships, and plays buffer function by above-mentioned buffer overflow valve; When unit head stops suddenly, because load inertia is large, repairing pipeline is long, motor side produces negative pressure, by one-way valve a31 and a32 in slippage pump a7, relief valve a6, slow supply oil valve a3 to suction side repairing; When wellhole is darker, unit head stop, drilling rod drive unit head reversion time, sky inhaled by motor 4, also by said elements to suction side repairing.
There is the deficiency of following three aspects in technique scheme:
1, the first buffer overflow valve a33 and the second buffer overflow valve a34 arranges pressure higher than power head motor first overload protection valve a24 and the second overload protection valve a25, therefore the condition of opening of slow supply oil valve is that surge pressure is higher than the first buffer overflow valve a33 and the second buffer overflow valve a34 setting themselves pressure, when unit head suddenly stops or commutates, can only play buffer function to impacting with high pressure, Long-Time Service causes very large infringement to motor;
2, when motor is inhaled empty, carry out repairing by quantitative slippage pump and relief valve, due to top drive drilling special construction, repairing pipeline is longer, and oil compensation pressure loss is comparatively large, and there is repairing delay situation;
3, when power head motor does not need repairing, repairing relief valve is in overflow situation, causes oil-supplementing system power dissipation.
Model utility content
The purpose of this utility model proposes a kind of slow supply oil valve, slow supply oil system and deep drilling rig, to reduce the infringement treating repairing part.
For achieving the above object, the utility model provides a kind of slow supply oil valve, comprise valve body, the first oil circuit and the second oil circuit is connected in parallel in described valve body, described first oil circuit is provided with the first shuttle valve, the two ends of described first oil circuit and the two ends of described second oil circuit are connected to the both sides for the treatment of repairing part respectively, the load pressure signal that repairing part both sides are larger is treated described in described first shuttle valve can filter out, and feed back as load feedback signal, to carry out off-load to described side for the treatment of that the induced pressure of repairing part is larger; Described second oil circuit is provided with the first one-way valve and the second one-way valve that differential concatenation connects, with make to be connected to repairing mechanism between described first one-way valve and described second one-way valve can for described in treat that the suction side of repairing part carries out repairing.
For achieving the above object, the utility model additionally provides a kind of slow supply oil system, comprise above-mentioned slow supply oil valve, repairing mechanism and unloading mechanism, tie point is provided with between the first one-way valve in described slow supply oil valve and the second one-way valve, described repairing mechanism is connected with described tie point, for for described in treat the repairing of repairing part, described unloading mechanism is connected with the outlet of described first shuttle valve, for treating to described the side off-load that the induced pressure of repairing part is larger.
Further, described repairing mechanism and described unloading mechanism are same accumulator, and described accumulator is connected with the outlet of described first shuttle valve, and to form off-load oil circuit, described accumulator is also connected with described tie point, to form repairing oil circuit.
Further, also comprise switch valve, described switch valve between described accumulator and described tie point, for controlling the break-make of described repairing oil circuit.
Further, also comprise main control valve and the second shuttle valve, described main control valve for control for described in treat the commutation of the oil feeding line of repairing part fuel feeding, described second shuttle valve is for screening pilot control signal larger in the control chamber of selector valve both sides in described main control valve, and as feedback signal back to described switch valve, open or close to make described switch valve.
Further, also comprise pilot valve, two oil outlets of described pilot valve are communicated with the control chamber of selector valve both sides in described main control valve, respectively for controlling the valve core movement of described selector valve.
Further, described accumulator, described switch valve and described slow supply oil valve be installed in described in treat on the scaffold of repairing part.
Further, also comprise needle-valve, described needle-valve is connected between described accumulator and described switch valve, and between described accumulator and described first shuttle valve, for controlling the openings of sizes of described accumulator.
For achieving the above object, the utility model additionally provides a kind of deep drilling rig, comprises above-mentioned slow supply oil valve or above-mentioned slow supply oil system.
Further, described in treat that repairing part is motor, described motor is installed on unit head, and described unit head is installed on unit head and installs on balladeur train.
Based on technique scheme, slow supply oil valve of the present utility model is by arranging the first shuttle valve, the load pressure signal treating that repairing part both sides are larger can be filtered out, this load pressure signal is fed back to corresponding part as load feedback signal, the off-load to the larger side of induced pressure can be realized, to avoid treating that repairing part one side pressure is excessive, treat repairing part and cause impacting with high pressure, repairing part is treated in infringement, this by screen and to feed back the mode of carrying out off-load comparatively direct, do not need as slow supply oil valve of the prior art, reach some qualifications ability off-load, repairing part high pressure side can be treated and carry out real time reaction, timely off-load, thus farthest repairing part is treated in protection, slow supply oil valve of the present utility model is also provided with the first one-way valve and second one-way valve of differential concatenation connection, can carry out repairing, avoid treating that repairing part is damaged when emptying phenomenon appears suddenly in the side of repairing part to suction side.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of oil-supplementing system in prior art.
Fig. 2 is the structural representation of the utility model slow supply oil valve embodiment.
Fig. 3 is the structural representation of the utility model slow supply oil system embodiment.
In figure: a1-fuel tank, a2-main control valve, a21-first relief valve, a22-first one-way valve, a23-selector valve, a24-first overload protection valve, a25-second overload protection valve, a3-slow supply oil valve, a31-second one-way valve, a32-the 3rd one-way valve, a33-first buffer overflow valve, a34-second buffer overflow valve, a4-motor, a5-repairing pipeline, a6-second relief valve, a7-slippage pump, a8-main pump, a9-motor;
1-fuel tank, 2-main control valve, 21-first relief valve, 22-the 3rd one-way valve; 23-selector valve, 24-first overload protection valve, 25-second overload protection valve; 3-slow supply oil valve, 31-first shuttle valve, 32-first one-way valve; 33-second one-way valve, 4-motor, 5-switch valve; 6-needle-valve, 7-accumulator, 8-pilot valve; 9-second shuttle valve, 10-main pump, 11-motor.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in embodiment is clearly and completely described.Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it will be appreciated that, term " " center ", " transverse direction ", " longitudinal direction ", " front ", " afterwards ", " left side ", " right side ", " on ", D score, " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the restriction to the utility model protection domain can not be interpreted as.
As shown in Figure 2, be the structural representation of the utility model slow supply oil valve embodiment.In this embodiment, slow supply oil valve 3 comprises valve body, the first oil circuit and the second oil circuit is connected in parallel in described valve body, described first oil circuit is provided with the first shuttle valve 31, the two ends of described first oil circuit and the two ends of described second oil circuit are connected to the both sides for the treatment of repairing part respectively, treat the load pressure signal that repairing part both sides are larger described in described first shuttle valve 31 can filter out, and feed back as load feedback signal, to carry out off-load to described side for the treatment of that the induced pressure of repairing part is larger; Described second oil circuit is provided with the first one-way valve 32 and the second one-way valve 33 that differential concatenation connects, with make to be connected to repairing mechanism between described first one-way valve 32 and described second one-way valve 33 can for described in treat that the suction side of repairing part carries out repairing.
Above-mentioned slow supply oil valve is by arranging the first shuttle valve, the load pressure signal treating that repairing part both sides are larger can be filtered out, this load pressure signal is fed back to corresponding part as load feedback signal, the off-load to the larger side of induced pressure can be realized, to avoid treating that repairing part one side pressure is excessive, treat repairing part and cause impacting with high pressure, repairing part is treated in infringement, this by screen and to feed back the mode of carrying out off-load comparatively direct, do not need as slow supply oil valve of the prior art, reach some qualifications ability off-load, repairing part high pressure side can be treated and carry out real time reaction, timely off-load, thus farthest repairing part is treated in protection, in addition, slow supply oil valve is also provided with the first one-way valve and second one-way valve of differential concatenation connection, can carry out repairing, avoid treating that repairing part is damaged when emptying phenomenon appears suddenly in the side of repairing part to suction side.
In order to realize the purpose of this utility model, the utility model also proposes a kind of slow supply oil system, as shown in Figure 3, is the structural representation of the utility model slow supply oil system embodiment.In this embodiment, slow supply oil system comprises above-mentioned slow supply oil valve 3, repairing mechanism and unloading mechanism, tie point H is provided with between the first one-way valve 32 in described slow supply oil valve and the second one-way valve 33, described repairing mechanism is connected with described tie point H, for for described in treat the repairing of repairing part, described unloading mechanism is connected with the outlet of described first shuttle valve 31, for treating to described the side off-load that the induced pressure of repairing part is larger.
As shown in Figure 3, treat that repairing part can be motor 4, the filler opening of the first one-way valve 32 is connected with tie point H, the oil outlet of the first one-way valve 32 is connected with the left side of motor 4, the filler opening of the second one-way valve 33 is connected with tie point H, the oil outlet of the second one-way valve 33 is connected with the right side of motor 4, and the hydraulic oil in repairing mechanism by the first one-way valve 32 and the second one-way valve 33, but can not be added in motor 4 by the first one-way valve 32 and the second one-way valve 33 by motor 4 both sides hydraulic oil.
First oil circuit at the first shuttle valve 31 place and second oil circuit at the first one-way valve 32 and the second one-way valve 33 place parallel with one another, with make for motor 4 realize off-load oil circuit and for motor 4 repairing oil circuit between do not interfere.Repairing mechanism can be special slippage pump, repairing fuel tank or accumulator etc., unloading mechanism can for fuel tank, have oil suction or oil storage function device or than treating the low pressure oil way that the on high-tension side pressure of repairing part is low, as long as can unloading function be realized.
In a preferred embodiment, described repairing mechanism and described unloading mechanism are same accumulator 7, namely repairing mechanism and unloading mechanism are same parts, this accumulator 7 can for serving as unloading mechanism to absorb the unnecessary hydraulic oil treating that repairing part overflows during until the off-load of repairing part, also Absorbable rod treats repairing part compression shock, stored energy, again can for serving as repairing mechanism for treating the repairing of repairing part during until the repairing of repairing part.Hydraulic oil unnecessary when the off-load of repairing part is collected by accumulator 7, then treat in repairing part again the hydraulic oil of collection being added to when repairing part needs repairing, do not need to increase separately repairing oil sources, solve the power wasting problem that in prior art, slippage pump works always, save the energy, energy-saving effect is better.This accumulator 7 can be bladder type hydropneumatic accumulator, bladder type hydropneumatic accumulator Absorbable rod compression shock, and impacting impacting with high pressure and low pressure has good cushioning effect.Particularly, described accumulator 7 is connected with the outlet of described first shuttle valve 31, and to form off-load oil circuit, described accumulator 7 is also connected with described tie point H, to form repairing oil circuit.
In order to realize the control to repairing process, can also arrange switch valve 5 between described accumulator 7 and described tie point H, to control the break-make of described repairing oil circuit, opening this switch valve 5, repairing oil circuit is communicated with, and accumulator 7 can be treats that repairing part carries out repairing; Close this switch valve 5, repairing oil circuit blocks, and accumulator 7 stops as treating the repairing of repairing part.The concrete form of switch valve 5 can have to be selected comparatively flexibly, can be such as manual switch valve, also can be solenoid directional control valve, can also be hydraulic control two position switching valve, act on as long as can realize it.As shown in Figure 3, when switch valve 5 is in upper, switch valve 5 by A to B conducting; When switch valve 5 is in bottom, switch valve 5 is ended to B by A.
In addition, slow supply oil system can also comprise main control valve 2 and the second shuttle valve 9, described main control valve 2 for control for described in treat the commutation of the oil feeding line of repairing part fuel feeding, described second shuttle valve 9 is for screening pilot control signal larger in the control chamber of selector valve 23 both sides in described main control valve 2, and as feedback signal back to described switch valve 5, open or close to make described switch valve 5.
Particularly, as shown in Figure 3, main control valve 2 can comprise the first relief valve 21, the 3rd one-way valve 22, selector valve 23, first overload protection valve 24 and the second overload protection valve 25.Wherein the first relief valve 21 is connected between oil inlet P on main control valve 2 valve body and oil outlet T, for the unnecessary oil mass of oil inlet P is overflowed back fuel tank 1, in addition, drives main pump 10 to enter on working connection by the hydraulic-pressure pump in fuel tank 1 by motor 11; 3rd one-way valve 2 can prevent the refluence of hydraulic oil on working connection; Selector valve 23 can be three six-way transfer valves, when spool is in meta, working connection is obstructed, hydraulic oil is by the first relief valve 21 oil sump tank 1, when spool is in left position, hydraulic oil on working connection enters the left side of motor 4 by selector valve 23, and when spool is in right position, the hydraulic oil on working connection enters the right side of motor 4 by selector valve 23; First overload protection valve 24 and the second overload protection valve 25 are respectively used to carry out overload protection to motor 4 both sides.Certainly, main control valve 2 also can adopt electric control reversing valve.
For selector valve 23, the pressure size of both sides control chamber determines the working position of spool, and the working position of spool can determine which side of the hydraulic oil supply motor 4 on working connection, therefore the second shuttle valve 9 is utilized to obtain the pressure of selector valve 23 both sides control chamber, the high pressure side of motor 4 can be obtained, then by this information feed back to switch valve 5, namely realize the break-make to motor 4 repairing oil circuit by the opening and closing of switch valve 5.
Particularly, the hydraulic fluid port d of the second shuttle valve 9 can be communicated with the right side control chamber of selector valve 23 by the hydraulic fluid port a on main control valve 2, the hydraulic fluid port e of the second shuttle valve 9 can be communicated with the left side control chamber of selector valve 23 by the hydraulic fluid port b on main control valve 2, and the oil outlet c of the second shuttle valve can be communicated with the hydraulic fluid port f of switch valve 5.
For the ease of operation, slow supply oil system can also comprise pilot valve 8, and two oil outlets of described pilot valve 8 are communicated with the control chamber of selector valve 23 both sides in described main control valve 2, respectively for controlling the valve core movement of described selector valve 23.As shown in Figure 3, pilot valve 8 can be pilot control handle, and the oil inlet P of pilot valve 8 is connected with pilot control F, and oil outlet T is connected with fuel tank.The left position of pilot valve 8 is communicated with the right position control chamber of selector valve 23, the right position of pilot valve 8 is communicated with the left position control chamber of selector valve 23, when the left position of guide's Joystick is pressed, the spool of selector valve 23 is to left movement, when the right position of guide's Joystick is pressed, the spool of selector valve 23 moves right.Certainly, pilot valve 8 also can be electric control handle or hydraulic control handle.
In some cases, repairing oil circuit may be longer, oil compensation pressure loss is larger, there will be repairing time delay situation, in order to overcome this problem, treating on the scaffold of repairing part described in described accumulator 7, described switch valve 5 and described slow supply oil valve 3 are installed in, accumulator 7, switch valve 5 and buffering Fill valve 3 distance is made to treat that repairing part is nearer like this, and then shorten the length of repairing oil circuit, oil compensation pressure loss can be reduced, avoid occurring repairing time delay phenomenon.
In addition, slow supply oil system can also comprise needle-valve 6, and described needle-valve 6 is connected between described accumulator 7 and described switch valve 5, and between described accumulator 7 and described first shuttle valve 31, for controlling the openings of sizes of described accumulator 7.Needle-valve 6, by controlling the openings of sizes of accumulator 7, can control the speed of slow supply oil, prevent repairing speed from causing the impact treating repairing part too soon, simultaneously when the air bag of bladder type hydropneumatic accumulator 7 damages, closes needle-valve 6, can more ventilation bag easily.
For realizing the purpose of this utility model, the utility model also proposes a kind of deep drilling rig, comprises the slow supply oil valve 3 in the various embodiments described above or the slow supply oil system in the various embodiments described above.
In above-mentioned deep drilling rig, describedly treat that repairing part is motor 4, described motor 4 is installed on unit head, described unit head is installed on unit head and installs on balladeur train, accumulator 7, switch valve 5 and buffering Fill valve 3 can be installed in unit head and install on balladeur train, so just make repairing mechanism can move together along with motor 4, and without the need to arranging the repairing pipeline of longer distance, reduce the pressure loss that repairing pipeline produces, make repairing more timely.
Be described in detail below in conjunction with the repairing process of accompanying drawing 3 pairs of the utility model deep drilling rigs embodiment under different operating mode:
Change at geological condition, unit head is anxious when stopping or commutate suddenly, power head motor 4 can be under pressure impacts, and surge pressure is oily enters into accumulator 7, by the air bag Absorbing hydraulic pulsation of accumulator 7 by the first shuttle valve 31 in slow supply oil valve 3.The D mouth of pilot valve 8 or E mouth delivery pressure, control normal work and the commutation of main control valve 2 on the one hand, on the other hand by the c mouth delivery pressure control switch valve 5 of shuttle valve 9, it is made to be in bottom, switch valve 5 is by the pathway closure of A to B, closed by the connecting passage of accumulator 7 to the S mouth of slow supply oil valve 3, surge pressure can be avoided to affect motor low voltage side.
In the unit head anxious stopping time, because inertia is large, unit head is rotated further, and while motor 4 side produces compression shock, opposite side produces negative pressure.Pilot valve 8 is in meta, its D mouth or E mouth no-output pressure, the c mouth no-output pressure of shuttle valve 9, switch valve 5 is in upper under spring force, switch valve 5 by A to B conducting, the pressure oil that accumulator 7 stores by switch valve 5, is transported to the S mouth of slow supply oil valve 3, then by the first one-way valve 32 or the second one-way valve 33 to low voltage side repairing.
When unit head normally stops, if well bore is comparatively dark, drilling rod resiliently deformable is serious, and drilling rod drives unit head reversion, one side draught of motor 4 is empty, pilot valve 8 is in meta, and main control valve 2 is in meta, and switch valve 5 is in upper under spring force, switch valve 5 by A to B conducting, the pressure oil that accumulator 7 stores by switch valve 5, is transported to the S mouth of slow supply oil valve 3, then by the first one-way valve 32 or the second one-way valve 33 to low voltage side repairing.
By the explanation of the multiple embodiments to the utility model slow supply oil valve, slow supply oil system and deep drilling rig, can see that the utility model slow supply oil valve, slow supply oil system and deep drilling rig embodiment at least have one or more advantages following:
1, when unit head stops or commutating, the compression shock of generation absorbs by accumulator, reduces the infringement caused motor;
2, accumulator, slow supply oil valve and switch valve are arranged on unit head installation balladeur train, with unit head motion, effectively reduce repairing length of pipe, reduce the pressure loss of repairing pipeline generation, make repairing more timely;
3, adopt accumulator to absorb motor pressure to impact, stored energy, the energy utilizing impact to produce carries out repairing to system, and energy-saving effect is better.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to embodiment of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope of the utility model request protection.
Claims (10)
1. a slow supply oil valve (3), it is characterized in that, comprise valve body, the first oil circuit and the second oil circuit is connected in parallel in described valve body, described first oil circuit is provided with the first shuttle valve (31), the two ends of described first oil circuit and the two ends of described second oil circuit are connected to the both sides for the treatment of repairing part respectively, the load pressure signal that repairing part both sides are larger is treated described in described first shuttle valve (31) can filter out, and feed back as load feedback signal, to carry out off-load to described side for the treatment of that the induced pressure of repairing part is larger; Described second oil circuit is provided with the first one-way valve (32) and the second one-way valve (33) that differential concatenation connects, with make to be connected to repairing mechanism between described first one-way valve (32) and described second one-way valve (33) can for described in treat that the suction side of repairing part carries out repairing.
2. a slow supply oil system, it is characterized in that, comprise slow supply oil valve (3) as claimed in claim 1, repairing mechanism and unloading mechanism, tie point (H) is provided with between the first one-way valve (32) in described slow supply oil valve and the second one-way valve (33), described repairing mechanism is connected with described tie point (H), for for described in treat the repairing of repairing part, described unloading mechanism is connected with the outlet of described first shuttle valve (31), for treating to described the side off-load that the induced pressure of repairing part is larger.
3. slow supply oil system according to claim 2, it is characterized in that, described repairing mechanism and described unloading mechanism are same accumulator (7), described accumulator (7) is connected with the outlet of described first shuttle valve (31), to form off-load oil circuit, described accumulator (7) is also connected with described tie point (H), to form repairing oil circuit.
4. slow supply oil system according to claim 3, it is characterized in that, also comprise switch valve (5), described switch valve (5) is positioned between described accumulator (7) and described tie point (H), for controlling the break-make of described repairing oil circuit.
5. slow supply oil system according to claim 4, it is characterized in that, also comprise main control valve (2) and the second shuttle valve (9), described main control valve (2) for control for described in treat the commutation of the oil feeding line of repairing part fuel feeding, described second shuttle valve (9) is for screening pilot control signal larger in the control chamber of described main control valve (2) interior selector valve (23) both sides, and as feedback signal back to described switch valve (5), open or close to make described switch valve (5).
6. slow supply oil system according to claim 5, it is characterized in that, also comprise pilot valve (8), two oil outlets of described pilot valve (8) are communicated with the control chamber of described main control valve (2) interior selector valve (23) both sides respectively, for controlling the valve core movement of described selector valve (23).
7. slow supply oil system according to claim 4, is characterized in that, treats on the scaffold of repairing part described in described accumulator (7), described switch valve (5) and described slow supply oil valve (3) are installed in.
8. slow supply oil system according to claim 4, it is characterized in that, also comprise needle-valve (6), described needle-valve (6) is connected between described accumulator (7) and described switch valve (5), and be positioned between described accumulator (7) and described first shuttle valve (31), for controlling the openings of sizes of described accumulator (7).
9. a deep drilling rig, is characterized in that, comprises slow supply oil valve (3) as claimed in claim 1 or the slow supply oil system as described in any one of claim 2 ~ 8.
10. deep drilling rig according to claim 9, is characterized in that, described in treat that repairing part is motor (4), described motor (4) is installed on unit head, and described unit head is installed on unit head and installs on balladeur train.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731454.6U CN205047558U (en) | 2015-09-21 | 2015-09-21 | Buffering filling oil valve , buffering oil replenishing system and deep well rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731454.6U CN205047558U (en) | 2015-09-21 | 2015-09-21 | Buffering filling oil valve , buffering oil replenishing system and deep well rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047558U true CN205047558U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520731454.6U Expired - Fee Related CN205047558U (en) | 2015-09-21 | 2015-09-21 | Buffering filling oil valve , buffering oil replenishing system and deep well rig |
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| Country | Link |
|---|---|
| CN (1) | CN205047558U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545536A (en) * | 2015-09-21 | 2017-03-29 | 徐工集团工程机械股份有限公司 | Slow supply oil valve, slow supply oil system and deep drilling rig |
| CN113464513A (en) * | 2021-07-21 | 2021-10-01 | 徐州徐工矿业机械有限公司 | Open type rotary oil supplementing system and oil supplementing method |
-
2015
- 2015-09-21 CN CN201520731454.6U patent/CN205047558U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545536A (en) * | 2015-09-21 | 2017-03-29 | 徐工集团工程机械股份有限公司 | Slow supply oil valve, slow supply oil system and deep drilling rig |
| CN113464513A (en) * | 2021-07-21 | 2021-10-01 | 徐州徐工矿业机械有限公司 | Open type rotary oil supplementing system and oil supplementing method |
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