CN207935420U - A kind of shift valve block, the more shift control systems of power head and rotary drilling rig - Google Patents
A kind of shift valve block, the more shift control systems of power head and rotary drilling rig Download PDFInfo
- Publication number
- CN207935420U CN207935420U CN201820109691.2U CN201820109691U CN207935420U CN 207935420 U CN207935420 U CN 207935420U CN 201820109691 U CN201820109691 U CN 201820109691U CN 207935420 U CN207935420 U CN 207935420U
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- valve
- power head
- oil
- fill
- shift
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Abstract
The utility model discloses a kind of shift valve block, including stop valve, float trap and Fill valve, the stop valve includes the first stop valve and the second stop valve；The Fill valve includes the first Fill valve and the second Fill valve；The shift valve block has control mouth, repairing mouth, the first oil inlet, the second oil inlet, the first oil outlet and the second oil outlet.The more shift control systems of a kind of power head provided by the utility model, including pioneer pump, reversal valve, solenoid valve, main pump, counterbalance valve, overflow valve, power head motor group and the shift valve block；The power head motor group includes N number of power head motor；The overflow valve includes the first overflow valve and the second overflow valve；The quantity of the solenoid valve and shift valve block is N 1.The utility model realizes more gears output of rotary digging drill power head, and the fuel consumption of rotary drilling rig is reduced to improve the working efficiency of rotary drilling rig can provide corresponding operating mode according to different geology.
Description
Technical field
The utility model is related to a kind of shift valve block, the more shift control systems of power head and rotary drilling rigs
Background technology
Rotary drilling rig is a kind of widely used efficient pore-forming equipment of heavy caliber in foundation construction of full hydraulic drive.It is dynamic
Power head is the key working part of rotary drilling rig, and output torque drives equipment to carry out bore operation.Existing rotary drilling rig
Power head be usually drive by hydraulic motor, and in, large-scale rotary drilling rig can generally use multiple power head motors, these are moved
Power head horse is up to being to work at the same time, and when hydraulic system pressure reaches default maximum pressure, power head output torque reaches maximum
Only there are one power head peak torques to export for value and power head, is a gear operating mode.And rotary drilling rig construction object is very
Complexity has Soft Soil Layer, hard stratum, severely-weathered, weak weathering, granite etc., the construction demand of these different geology rotary drilling rigs
It is different, for example Soft Soil Layer needs to provide the operating mode of high rpm low torque, and enters hard rock and then generally require large torque
The operating mode of the slow-speed of revolution.Therefore, the power head of rotary drilling rig should be designed to more gear outputs, can be provided according to different geology
Corresponding operating mode reduces the fuel consumption of rotary drilling rig to improve the working efficiency of rotary drilling rig, is rotary drilling rig
Important trend.
Utility model content
The purpose of this utility model is that have overcome the deficiencies of the prior art and provide a kind of shift valve block, power head more
Shift control system and control method and rotary drilling rig, the utility model realize more gears output of rotary digging drill power head,
Corresponding operating mode can be provided according to different geology, to improve the working efficiency of rotary drilling rig, rotary drilling rig is reduced
Fuel consumption.
To achieve the goals above, the utility model provides a kind of shift valve block, including stop valve, float trap and repairing
Valve, the stop valve include the first stop valve and the second stop valve；The Fill valve includes the first Fill valve and the second Fill valve；
The shift valve block has control mouth, repairing mouth, the first oil inlet, the second oil inlet, the first oil outlet and second
Oil outlet；
The pilot port of first stop valve, the pilot port of the second stop valve, the pilot port of float trap with the control
Mouth is connected；
First oil inlet is connected with the import of first stop valve, and the outlet of first stop valve passes through
One oil duct is connected with first oil outlet；
Second oil inlet is connected with the import of second stop valve, and the outlet of second stop valve passes through
Two oil ducts are connected with second oil outlet；
First oil duct is connected with the outlet of first Fill valve, the entrance of first Fill valve and described the
The entrance of two Fill valves is connected, and the outlet of second Fill valve is connected with second oil duct；
First hydraulic fluid port of the float trap is connected with first oil duct, the second hydraulic fluid port of the float trap and described the
Two oil ducts are connected；
The entrance of first Fill valve and the entrance of the second Fill valve are connected with the repairing mouth；
The liquid flow direction of first Fill valve is only to flow to first Fill valve from the entrance of first Fill valve
Outlet；
The liquid flow direction of second Fill valve is only to flow to second Fill valve from the entrance of second Fill valve
Outlet.
Further, first Fill valve and the second Fill valve are check valve.
The more shift control systems of a kind of power head provided by the utility model, including pioneer pump, reversal valve, solenoid valve, master
Pump, counterbalance valve, overflow valve, power head motor group and the shift valve block；The power head motor group includes N number of power head
Motor；The overflow valve includes the first overflow valve and the second overflow valve；The quantity of the solenoid valve and shift valve block is N-1
It is a；Wherein N is natural number, N >=2；
The hydraulic oil outlet of the pioneer pump is connected with the oil inlet of the N-1 solenoid valves, the N-1 solenoid valves
Oil outlet be connected respectively with the control mouths of the described shift valve blocks of N-1；The hydraulic oil outlet of the pioneer pump and described the
One overflow valve is connected；
The hydraulic oil outlet of the main pump is connected with the oil inlet of the reversal valve；The hydraulic oil outlet of the main pump with
Second overflow valve is connected；The first actuator port and the second actuator port of the reversal valve respectively with the power
The first actuator port and the second actuator port that head horse reaches are connected；
Second oil inlet of the N-1 shift valve blocks is connected with the first actuator port of the reversal valve； N-1
First oil inlet of a shift valve block is connected with the second actuator port of the reversal valve；
First oil outlet of the described shift valve blocks of N-1 the first actuator port with the N-1 power head motors respectively
It is connected；Second oil outlet of the described shift valve blocks of N-1 the second actuator port phase with the N-1 power head motors respectively
Connection；
The repairing mouth of a shift valve blocks of N-1 and the oil return opening of the reversal valve are connected with the counterbalance valve.
A kind of control method of the more shift control systems of power head provided by the utility model, includes the following steps：
Step S1：Operate that reversal valve rotates forward guide or reversion guide, reversal valve work in left position or right position, the of reversal valve
A fuel-displaced oil return in one actuator port and the second actuator port；Oil inlet of the hydraulic oil through reversal valve of main pump output at this time
Mouth is delivered to the first actuator port or the second actuator port of reversal valve；The power head horse being wherein directly connected to reversal valve
It reaches, the hydraulic oil of the first actuator port of reversal valve or the output of the second actuator port is fed directly to the first of the power head motor
Actuator port or the second actuator port, to drive the power head motor forward or reverse；
In remaining N-1 power head motor, when solenoid valve corresponding with power head motor must not be electric, corresponding shift valve
The first stop valve, the second stop valve and the float trap of block do not commutate, i.e. the first stop valve, the second stop valve work in the right side
Position, float trap works in bottom, when the first actuator port of reversal valve is fuel-displaced, and when the second actuator port oil return, reversal valve
Second oil inlet, second stop valve, second oil outlet of the hydraulic oil of first actuator port output successively through valve block of shifting gears convey
To the second actuator port of corresponding power head motor, corresponding power head motor is driven to rotate forward, or when the second work of reversal valve
Hydraulic fluid port is fuel-displaced, and when the first actuator port oil return, and the hydraulic oil of the second actuator port output of reversal valve is successively through valve block of shifting gears
The first oil inlet, the first stop valve, the first oil outlet be delivered to the first actuator port of corresponding power head motor, driving corresponds to
Power head motor inverts；
In remaining N-1 power head motor, when solenoid valve corresponding with power head motor obtains electric, the liquid of pioneer pump output
Pressure oil is delivered to the control mouth of corresponding shift valve block after corresponding solenoid valve, to drive corresponding shift valve in the block first
Stop valve, the second stop valve and float trap commutate, i.e. the first stop valve, the second stop valve work in left position, float trap work
Make in upper, the oil circuit of the first actuator port of reversal valve is cut off by the second stop valve at this time, the oil circuit quilt of the second actuator port
First stop valve is cut off, and corresponding power head motor floats；
Step S2：In step sl, it is in the power head motor to float, since float trap works in upper, power head horse
The first actuator port and the second actuator port reached is connected, and a minor loop is formed between the power head motor and float trap,
It dallies to drive the power head motor to float when power head rotation；
Step S3：The setting pressure of counterbalance valve is higher than the Opening pressure of the first Fill valve and the second Fill valve, in step S2
In, the power head motor in idle running of floating has the leakage of hydraulic oil, when the first actuator port of the power head motor or the
When the pressure of two actuator ports is less than the setting pressure of counterbalance valve, the hydraulic oil to flow back at reversal valve oil return opening is pressurized through counterbalance valve
The repairing mouth of backward corresponding shift valve block carries out repairing, fills into the hydraulic oil of repairing mouth through the first Fill valve or the second Fill valve
It is delivered to the first actuator port or the second actuator port of the power head motor afterwards, hydraulic oil is filled into the power head motor,
To prevent the power head motor to be emptied damage.
A kind of rotary drilling rig provided by the utility model, including the more shift control systems of the power head.
Compared with prior art, the beneficial effects of the utility model：
1, the utility model main pump provides hydraulic oil and changes the power head for back-driving and being directly connected to reversal valve through reversal valve
Motor forward or reverse.The utility model is provided with shift valve block between power head motor and reversal valve, and shift valve block is by elder generation
Lead pump and provide hydraulic oil and through solenoid valve control, one shift valve block of a solenoid valve control, solenoid valve obtain it is electric after, valve block of shifting gears
Internal stop valve and float trap commutation, stop valve cut off power head motor working oil path, and float trap connects the shift valve block
Two actuator ports of the power head motor connect are connected to, and power head motor floats.When drill head system works, power head drives
The power head motor dallies, and main pump hydraulic oil is all supplied to remaining power head motor, power head max. output torque that will lack
One power head motor effect, realizes power head shift.The utility model realizes power head motor work by setting shift valve block
Make the break-make of oil circuit；Being switched fast for each gear of power head is realized by the way that solenoid valve is arranged, and realizes rotary digging drill power head
More gear outputs, corresponding operating mode can be provided according to different geology, to improve the working efficiency of rotary drilling rig, drop
The fuel consumption of low rotary drilling rig.
2, when the cut-off power head motor floating of the utility model is dallied, the hydraulic oil in power head motor, which has, to be let out
Leakage, to prevent power head motor to be emptied because of leakage, the utility model is provided with Fill valve, wherein Fill valve in shift valve block
It is connected with counterbalance valve with the oil return opening of reversal valve, the setting pressure of counterbalance valve is higher than the Opening pressure of Fill valve, works as quilt
When the pressure of the actuator port of the power head motor of cut-out is less than the setting pressure of counterbalance valve, the liquid of reflux at reversal valve oil return opening
Repairing mouth, Fill valve of the pressure oil through valve block of shifting gears after counterbalance valve increase are filled into cut-off power head motor, are so protected
It is not emptied when having demonstrate,proved power head motor floating idle running, reaches damage to prevent stopping power head horse.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the hydraulic schematic diagram of shift valve block in the utility model embodiment.
Fig. 2 is the hydraulic schematic diagram of control system in the utility model embodiment.
Specific implementation mode
Utility model is further illustrated below in conjunction with the accompanying drawings, but is not intended to limit the scope of the present invention.
Embodiment
As shown in Figure 1, a kind of shift valve block provided by the utility model, including stop valve, float trap 105 and Fill valve,
The stop valve includes the first stop valve 101 and the second stop valve 102；The Fill valve includes the first Fill valve 103 and second
Fill valve 104；
The shift valve block 1 has control mouth Z, repairing mouth S, the first oil inlet V1, the second oil inlet V2, the first oil outlet
C1 and the second oil outlet C2；
The pilot port of first stop valve 101, the pilot port of the second stop valve 102, the pilot port of float trap 105 with
The control mouth Z is connected；
The first oil inlet V1 is connected with the import of first stop valve 101, first stop valve 101
Outlet is connected by the first oil duct with the first oil outlet C1；
The second oil inlet V2 is connected with the import of second stop valve 102, second stop valve 102
Outlet is connected by the second oil duct with the second oil outlet C2；
First oil duct is connected with the outlet of first Fill valve 103, the entrance of first Fill valve 103
It is connected with the entrance of second Fill valve 104, the outlet of second Fill valve 104 is connected with second oil duct；
First hydraulic fluid port of the float trap 105 is connected with first oil duct, the second hydraulic fluid port of the float trap 105 with
Second oil duct is connected；
The entrance of the entrance of first Fill valve 103 and the second Fill valve 104 is connected with the repairing mouth S；
The liquid flow direction of first Fill valve 103 is only to flow to described first from the entrance of first Fill valve 103
The outlet of Fill valve 103；
The liquid flow direction of second Fill valve 104 is only to flow to described second from the entrance of second Fill valve 104
The outlet of Fill valve 104.
In the present embodiment, first Fill valve, 103 and second Fill valve 104 is check valve.Stop valve is two two
Usually logical logical valve, float trap 105 are the normally closed logical valve of bi-bit bi-pass.
The more shift control systems of a kind of power head provided by the utility model, including pioneer pump 2, reversal valve 6, solenoid valve 5,
Main pump 3, counterbalance valve 4, overflow valve, power head motor group and shift valve block 1；The power head motor group includes N number of power head
Motor；The overflow valve includes the first overflow valve 7 and the second overflow valve 8；The solenoid valve 5 and the quantity of shift valve block 1 are
N-1；Wherein N is natural number, N >=2；
The hydraulic oil outlet of the pioneer pump 2 is connected with the oil inlet of the N-1 solenoid valves 5, the N-1 electromagnetism
The oil outlet of valve 5 is connected with the control mouth Z of the N-1 shift valve blocks 1 respectively；The hydraulic oil outlet of the pioneer pump 2 with
First overflow valve 7 is connected；
The hydraulic oil outlet of the main pump 3 is connected with the oil inlet P of the reversal valve 6；The hydraulic oil of the main pump 3
Outlet is connected with second overflow valve 8；The the first actuator port A1 and the second actuator port B1 of the reversal valve 6 respectively with
The the first actuator port A and the second actuator port B of one power head motor 9 are connected；
Second oil inlet V2 of the N-1 shift valve blocks 1 is connected with the first actuator port A1 of the reversal valve 6
It connects；First oil inlet V1 of the N-1 shift valve blocks 1 is connected with the second actuator port B1 of the reversal valve 6；
First oil outlet C1 of the N-1 shift valve blocks 1 works with the first of the N-1 power head motors 9 respectively
Hydraulic fluid port A is connected；Second oil outlet C2 of the N-1 shift valve blocks 1 works with the second of N-1 power head motor 9 respectively
Hydraulic fluid port B is connected；
The repairing mouth S of the described shift valve blocks 1 of N-1 and the oil return inlet T of the reversal valve 6 with 4 phase of the counterbalance valve
Connection.
In the present embodiment, pioneer pump 2 is gear pump, and main pump 3 is variable pump, and counterbalance valve 4 is for direct-acting overflow valve or unidirectionally
Valve, solenoid valve 5 are two-bit triplet solenoid valve or two position four-way solenoid valves, and reversal valve 6 is three six logical pilot operated directional control valves, power head
Motor 9 is variable displacement motor.
A kind of control method of the more shift control systems of power head provided by the utility model, includes the following steps：
Step S1：It operates reversal valve 6 to rotate forward guide or invert guide, reversal valve 2 works in left position or right position, reversal valve 2
The first actuator port A1 and the second actuator port B1 in a fuel-displaced oil return；The hydraulic oil that main pump 3 exports at this time is through changing
The the first actuator port A1 or the second actuator port B1 of reversal valve 6 are delivered to the oil inlet P of valve 2；It is wherein direct with reversal valve 2
The hydraulic oil of one power head motor 9 of connection, the first actuator port A1 of reversal valve 6 or the second actuator port B1 outputs is directly defeated
It send to the first actuator port A of the power head motor 9 or the second actuator port B, to drive the power head motor 9 to rotate forward or anti-
Turn；
It is corresponding to change when solenoid valve corresponding with power head motor 95 must not be electric in remaining N-1 power head motor 9
The first stop valve 101, the second stop valve 102 and the float trap 105 of gear valve block 1 do not commutate, i.e. the first stop valve 101, second
Stop valve 102 works in right position, and float trap 105 works in bottom, when the first actuator port A1 of reversal valve 6 is fuel-displaced, and
When two actuator port B1 oil returns, the hydraulic oil of the first actuator port A1 output of reversal valve 6 successively through valve block 1 of shifting gears second into
Hydraulic fluid port V2, the second stop valve 102, the second oil outlet C2 are delivered to the second actuator port B of corresponding power head motor 9, driving pair
Power head motor 9 is answered to rotate forward, or when the second actuator port B1 of reversal valve 6 is fuel-displaced, and when the first actuator port A1 oil returns,
First oil inlet V1, first stop valve of the hydraulic oil of second actuator port B1 outputs of reversal valve 6 successively through valve block 1 of shifting gears
101, the first oil outlet C1 is delivered to the first actuator port A of corresponding power head motor 9, and corresponding power head motor 9 is driven to invert；
In remaining N-1 power head motor 9, when solenoid valve 5 corresponding with power head motor 9 must be electric, pioneer pump 2 exports
Hydraulic oil be delivered to after corresponding solenoid valve 5 it is corresponding shift valve block 1 control mouth Z, to drive corresponding shift valve block 1
In the first stop valve 101, the second stop valve 102 and float trap 105 commutate, i.e. the first stop valve 101, the second stop valve
102 work in left position, and float trap 105 works in upper, and the oil circuit of the first actuator port A1 of reversal valve 6 is cut by second at this time
Disconnected valve 102 is cut off, and the oil circuit of the second actuator port B1 is cut off by the first stop valve 101, and corresponding power head motor 9 floats；
Step S2：In step sl, it is in the power head motor 9 to float, since float trap 105 works in upper, power
Head horse is connected up to 9 the first actuator port A and the second actuator port B, is formed between the power head motor 9 and float trap 105
One minor loop dallies to drive the power head motor 9 to float when power head rotation；
Step S3：The setting pressure of counterbalance valve 4 is higher than the Opening pressure of the first Fill valve 103 and the second Fill valve 104,
In step S2, the power head motor 9 in idle running of floating has the leakage of hydraulic oil, when the first work of the power head motor 9
When the pressure of hydraulic fluid port A or the second actuator port B are less than the setting pressure of counterbalance valve 4, the hydraulic pressure of reflux at 6 oil return inlet T of reversal valve
Oil carries out repairing after the supercharging of counterbalance valve 4 to the repairing mouth S of corresponding shift valve block 1, fills into the hydraulic oil of repairing mouth S through first
The the first actuator port A or the second actuator port B of the power head motor 9 are delivered to after Fill valve 103 or the second Fill valve 104,
Hydraulic oil is filled into the power head motor 9, to prevent the power head motor 9 to be emptied damage.
As shown in Fig. 2, illustrating the more shift control systems of the utility model power head by taking three power head motors 9 as an example
And control method：Directly it is connected with reversal valve 6 positioned at intermediate power head motor 9, other two power head motor 9 passes through
Shift valve block 1 is connected with reversal valve 6.When drill head system works, and two solenoid valves 5 must not electricity when, at this time three it is dynamic
Power head horse works at the same time up to 9, and at this moment the max. output torque of power head is that (T is that the maximum output of a power head motor 9 is turned round to 3T
Square).When one of solenoid valve 5 must be electric, another solenoid valve 5 must not be electric, two power head motors 9 work at the same time at this time,
A power head motor 9 work being located in the intermediate work of power head motor 9 and other two, a power head motor 9
It is cut off and idle running of floating, at this moment the max. output torque of power head is 2T；When two solenoid valves 5 all it is electric when, only have at this time
One power head motor 9 works at the same time, that is, is located at intermediate power head motor 9 and works, other two power head motor 9 is cut
Break and idle running of floating, at this moment the max. output torque of power head is T.
A kind of rotary drilling rig provided by the utility model, including the more shift control systems of the power head.
The utility model main pump 3 provides hydraulic oil and changes the power head for back-driving and being directly connected to reversal valve 6 through reversal valve 6
9 forward or reverse of motor.The utility model is provided with shift valve block 1 between power head motor 9 and reversal valve 6, valve block 1 of shifting gears
Hydraulic oil is provided by pioneer pump 2 and is controlled through solenoid valve 5, a solenoid valve 5 controls a shift valve block 1, and solenoid valve 5 obtains electric
Afterwards, stop valve and float trap 105 inside valve block 1 of shifting gears commutate, and stop valve cuts off 9 working oil path of power head motor, floats
Two actuator ports of the power head motor 9 that valve 105 connects the shift valve block 1 are connected to, and power head motor 9 floats.Work as power
When head system works, power head drives the power head motor 9 to dally, and 3 hydraulic oil of main pump is all supplied to remaining power head horse
Up to 9, power head max. output torque acts on a few power head motor 9, realizes power head shift.The utility model is by setting
Displacement gear valve block 1 realizes the break-make of 9 working oil path of power head motor；The fast of each gear of power head is realized by the way that solenoid valve 5 is arranged
Speed switching realizes more gears output of rotary digging drill power head, corresponding operating mode can be provided according to different geology,
To improve the working efficiency of rotary drilling rig, the fuel consumption of rotary drilling rig is reduced.
When the cut-off floating of power head motor 9 of the utility model is dallied, the hydraulic oil in power head motor 9, which has, to be let out
Leakage, to prevent power head motor 9 to be emptied because of leakage, the utility model is provided with Fill valve, wherein repairing in shift valve block 1
The oil return inlet T of valve and reversal valve 6 is connected with counterbalance valve 4, and the setting pressure of counterbalance valve 4 is higher than the unlatching pressure of Fill valve
Power, when the pressure of the actuator port of cut-off power head motor 9 is less than the setting pressure of counterbalance valve 4,6 oil return opening of reversal valve
Repairing mouth S, Fill valve of the hydraulic oil to flow back at T through valve block 1 of shifting gears after the increase of counterbalance valve 4 are filled into cut-off power head
In motor 9, it so ensure that power head motor 9 floats and be not emptied when dallying, damaged up to 9 to prevent stopping power head horse.
Basic principles, main features, and advantages of the present invention has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, the utility model can also on the premise of not departing from the spirit and scope of the utility model
There are various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The utility model is wanted
Protection domain is asked to be defined by appended claims and its equivalent.
Claims (4)
1. a kind of shift valve block, it is characterised in that：Including stop valve, float trap (105) and Fill valve, the stop valve includes the
One stop valve (101) and the second stop valve (102)；The Fill valve includes the first Fill valve (103) and the second Fill valve
(104)；
The shift valve block (1) has control mouth (Z), repairing mouth (S), the first oil inlet (V1), the second oil inlet (V2), first
Oil outlet (C1) and the second oil outlet (C2)；
The pilot port of first stop valve (101), the pilot port of the second stop valve (102), the pilot port of float trap (105) are equal
It is connected with the control mouth (Z)；
First oil inlet (V1) is connected with the import of first stop valve (101), first stop valve (101)
Outlet is connected by the first oil duct with first oil outlet (C1)；
Second oil inlet (V2) is connected with the import of second stop valve (102), second stop valve (102)
Outlet is connected by the second oil duct with second oil outlet (C2)；
First oil duct is connected with the outlet of first Fill valve (103), the entrance of first Fill valve (103) with
The entrance of second Fill valve (104) is connected, and the outlet of second Fill valve (104) is connected with second oil duct
It connects；
First hydraulic fluid port of the float trap (105) is connected with first oil duct, the second hydraulic fluid port of the float trap (105) with
Second oil duct is connected；
The entrance of first Fill valve (103) and the entrance of the second Fill valve (104) are connected with the repairing mouth (S)；
The liquid flow direction of first Fill valve (103) is only to flow to described first from the entrance of first Fill valve (103)
The outlet of Fill valve (103)；
The liquid flow direction of second Fill valve (104) is only to flow to described second from the entrance of second Fill valve (104)
The outlet of Fill valve (104).
2. a kind of shift valve block according to claim 1, which is characterized in that first Fill valve (103) and second is mended
Fuel tap (104) is check valve.
3. a kind of more shift control systems of power head, which is characterized in that including pioneer pump (2), reversal valve (6), solenoid valve (5),
Main pump (3), counterbalance valve (4), overflow valve, power head motor group and shift valve block (1) as claimed in claim 1 or 2；It is described dynamic
Power head groups of motors includes N number of power head motor (9)；The overflow valve includes the first overflow valve (7) and the second overflow valve (8)；Institute
The quantity for stating solenoid valve (5) and valve block (1) of shifting gears is N-1；Wherein N is natural number, N >=2；
The hydraulic oil outlet of the pioneer pump (2) is connected with the oil inlet of the N-1 solenoid valves (5), the N-1 electromagnetism
The oil outlet of valve (5) is connected with the control mouth (Z) of the N-1 shift valve blocks (1) respectively；The hydraulic pressure of the pioneer pump (2)
Oil export is connected with first overflow valve (7)；
The hydraulic oil outlet of the main pump (3) is connected with the oil inlet (P) of the reversal valve (6)；The hydraulic pressure of the main pump (3)
Oil export is connected with second overflow valve (8)；The first actuator port (A1) and the second actuator port of the reversal valve (6)
(B1) it is connected respectively with the first actuator port (A) of power head motor (9) and the second actuator port (B)；
The second oil inlet (V2) of the described shift valve blocks (1) of N-1 with the first actuator port of the reversal valve (6) (A1) phase
Connection；The first oil inlet (V1) of the described shift valve blocks (1) of N-1 with the second actuator port of the reversal valve (6) (B1)
It is connected；
The first oil outlet (C1) of the described shift valve blocks (1) of N-1 the first work with the N-1 power head motors (9) respectively
Make hydraulic fluid port (A) to be connected；The second oil outlet (C2) of the described shift valve blocks (1) of N-1 respectively with the N-1 power head motors
(9) the second actuator port (B) is connected；
The repairing mouth (S) of the described shift valve blocks (1) of N-1 and the oil return opening (T) of the reversal valve (6) with the counterbalance valve
(4) it is connected.
4. a kind of rotary drilling rig, which is characterized in that including the more shift control systems of power head described in claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820109691.2U CN207935420U (en) | 2018-01-22 | 2018-01-22 | A kind of shift valve block, the more shift control systems of power head and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820109691.2U CN207935420U (en) | 2018-01-22 | 2018-01-22 | A kind of shift valve block, the more shift control systems of power head and rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207935420U true CN207935420U (en) | 2018-10-02 |
Family
ID=63649962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820109691.2U Withdrawn - After Issue CN207935420U (en) | 2018-01-22 | 2018-01-22 | A kind of shift valve block, the more shift control systems of power head and rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207935420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150643A (en) * | 2018-01-22 | 2018-06-12 | 恒天九五重工有限公司 | A kind of shift valve block, power head multi gear level controlling system and control method and rotary drilling rig |
-
2018
- 2018-01-22 CN CN201820109691.2U patent/CN207935420U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150643A (en) * | 2018-01-22 | 2018-06-12 | 恒天九五重工有限公司 | A kind of shift valve block, power head multi gear level controlling system and control method and rotary drilling rig |
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