CN108691737A - A kind of piston high-density pump of hydraulic-driven - Google Patents
A kind of piston high-density pump of hydraulic-driven Download PDFInfo
- Publication number
- CN108691737A CN108691737A CN201810480340.7A CN201810480340A CN108691737A CN 108691737 A CN108691737 A CN 108691737A CN 201810480340 A CN201810480340 A CN 201810480340A CN 108691737 A CN108691737 A CN 108691737A
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- Prior art keywords
- hydraulic
- hydraulic fluid
- fluid ports
- flow hole
- valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of piston high-density pumps of hydraulic-driven, including hydraulic cylinder, the mud pump housing, piston rod, and the link block for connecting the hydraulic cylinder and the mud pump housing is arranged between the hydraulic cylinder and the mud pump housing;The piston rod is slidably connected in the link block, and its left end is located in the hydraulic cylinder, and right end end is located in the slush pump body;The hydraulic piston being connected with the piston rod left end is slidably connected in the hydraulic cylinder, and the mud piston being connected with the piston rod right end is slidably connected in the slush pump body;The left end of the hydraulic cylinder is equipped with hydraulic pressure end cap, and the hydraulic end is covered equipped with the automatic diverter valve moved back and forth for controlling the hydraulic piston;The right end of the mud pump housing is equipped with mud end cap, and the mud end cap is equipped with for controlling the check valve assembly that mud passes in and out in the slush pump body;The slush pump is not only simple in structure, and is not necessarily to electric control.
Description
Technical field
The present invention relates to mud pump technical field, specially a kind of piston high-density pump of hydraulic-driven.
Background technology
With the large-scale application of heavy mechanical equipment, hydraulic-driven obtains extensively as a kind of critically important type of drive
Using hydraulic system and its relevant technologies also reach its maturity.Especially in slush pump applied technical field, traditional slush pump is
It realizes that piston moves back and forth in cylinder body using toggle in turn to pump out mud, the slush pump of this mode exports arteries and veins
It rushes big, unstable, and is easy to block under bad working environments, in addition realizes reciprocating motion of the pistons in current hydraulic slurry pump
Reversal valve, mostly use solenoid directional control valve greatly and displacement sensor match control commutation, all by controlling sensor close to switch,
It is unstable, unreliable to commutate, complicated, and it is inconvenient to replace;The control circuit part of reversing arrangement is using circuit board control
System, because wiring board is non-standard, and making processing is relatively difficult, and repair is just extremely difficult after damage, while if there is
Also be inconvenient to search reason after problem, greatly reduce production efficiency;Existing reversing arrangement, if long-term lasting energization, very
It is easily damaged gadget, the requirement being electrified for a long time can be met, also influenced production efficiency to a certain extent.And certain fields
There is extremely stringent requirement of explosion proof, it is desirable that simplification system as possible is intervened without extraneous, is such as applied in oil mine, coal filling
Slush pump (having requirement of explosion proof) in the fields such as note, natural gas compressing station, a kind of reciprocating mud of hydraulic-driven of desirability
The intervention for pumping to meet without personnel's short distance can voluntarily commutate but also meet the needs of explosion-proof.
Invention content
(1) technical problems to be solved
It is an object of the invention to overcome the defect in the prior art, provides a kind of simple in structure, easy to use and run
The piston high-density pump of stable hydraulic-driven.
(2) technical solution
To achieve the above object, the present invention provides a kind of piston high-density pumps of hydraulic-driven, including hydraulic cylinder, mud
Stuff pump body, piston rod, and be arranged between the hydraulic cylinder and the mud pump housing for connect the hydraulic cylinder and
The link block of the mud pump housing;The piston rod is slidably connected in the link block, and its left end is located at the hydraulic cylinder
In vivo, right end end is located in the slush pump body;It slidably connects in the hydraulic cylinder and is connected with the piston rod left end
Hydraulic piston slidably connects the mud piston being connected with the piston rod right end in the slush pump body;The hydraulic cylinder
Left end hydraulic pressure end cap is installed, the hydraulic end is covered equipped with the automatic reverse moved back and forth for controlling the hydraulic piston
Valve;The right end of the mud pump housing is equipped with mud end cap, and the mud end cap is equipped with for controlling in the slush pump body
The check valve assembly of mud disengaging;The check valve assembly includes that mud passes in and out in rodless cavity in the slush pump body for controlling
The first check valve and the second check valve, and it is unidirectional for controlling in the slush pump body third that mud passes in and out in rod chamber
Valve and the 4th check valve;It is equipped in the slush pump body for being connected to rod chamber in the third one-way valved outlet and slush pump body
First flow, and the second flow channel for being connected to rodless cavity in the 4th check valve inlet and slush pump body.By upper
It states the hydraulic cylinder that the hydraulic slurry pump is set and mud pump housing Integral connection structure is compacter, and mud piston is reciprocal
Movement is without automatically controlled.
In further technical solution, the automatic diverter valve includes being internally provided with P hydraulic fluid ports, A hydraulic fluid ports, B hydraulic fluid ports, T hydraulic fluid ports
Valve body, the left and right ends of the valve body are equipped with end cap, are slidably connected in the valve body and are useful for the master of control port break-make
The inside of spool, the main valve plug is axially arranged with perforative mounting hole along it, and pilot valve is slidably connected in the mounting hole;
The side upper edge of the main valve plug its it is axial be equipped with first shoulder, the second shoulder, third shoulder successively from left to right, described first
The first master control chamber is formed between shoulder and the end cap, and the second master control chamber is formed between the third shoulder and the end cap;Institute
It states and forms the first first guide cavity between the left end of main valve plug and the end cap, formed between the right end of the main valve plug and the end cap
Second first guide cavity;When the main valve plug is located at left position, the P hydraulic fluid ports are communicated with the B hydraulic fluid ports, the A hydraulic fluid ports and the T
Hydraulic fluid port communicates;When the main valve plug is located at location right, the P hydraulic fluid ports are communicated with the A hydraulic fluid ports, the B hydraulic fluid ports and T oil
Mouth communicates;The side of the first shoulder is equipped with the first through flow hole for being connected to the mounting hole and the T hydraulic fluid ports;It is described
The side of third shoulder is equipped with the second through flow hole for being connected to the mounting hole and the T hydraulic fluid ports;Second shoulder
Side is equipped with the third through flow hole for being connected to the mounting hole and the P hydraulic fluid ports;It is equipped in the main valve plug for being connected to
4th through flow hole of the first master control chamber and the mounting hole, and for being connected to the second master control chamber and the mounting hole
The 5th through flow hole;When the pilot valve is located at left position, the third through flow hole is communicated with the 4th through flow hole, institute
The second through flow hole is stated to communicate with the 5th through flow hole;When the pilot valve is located at location right, the third through flow hole with
5th through flow hole communicates, and first through flow hole is communicated with the 4th through flow hole;It is additionally provided on the end cap for controlling
Make the overflow-valve device of the pilot valve action, and the push rod device for controlling the pilot valve initial position.
Through the above technical solutions, before P hydraulic fluid port oil inlets, push rod device only need to be pushed manually, and pilot valve is made to be in one
A initial position (being equivalent to launch computer), if making pilot valve be pulled to by push rod device is moved to the left to limit position
It sets, then the fluid of P hydraulic fluid ports enters the first master control by third through flow hole (and P hydraulic fluid ports communicate always), mounting hole, the 4th through flow hole
Chamber, then main valve plug move right (if before main valve plug not extreme position on the right) or be maintained at the right extreme position (such as
Just extreme position on the right before fruit), such P hydraulic fluid ports lead to A hydraulic fluid ports, B hydraulic fluid ports lead to T hydraulic fluid ports.When A hydraulic fluid ports pressure rise to overflow valve
When the pressure of device setting, fluid enters the first first guide cavity by A hydraulic fluid ports, pushes pilot valve to move right, wherein the second guide
The fluid of chamber flows back to T hydraulic fluid ports by overflow-valve device, and the pressure of such P hydraulic fluid ports is by third through flow hole, mounting hole, the 5th through-flow
Hole enters the second master control chamber, and the fluid of the first master control intracavitary passes through the 4th through flow hole, mounting hole, the first through flow hole and T hydraulic fluid port phases
Logical, main valve plug is moved to the left and is switched to the logical B hydraulic fluid ports of P hydraulic fluid ports, A hydraulic fluid ports lead to T hydraulic fluid ports position.When the pressure rise of B hydraulic fluid ports is to overflow
When the pressure of valve gear setting, fluid enters the second first guide cavity by B hydraulic fluid ports, and pilot valve is pushed to be moved to the left, the first first guide cavity
Fluid T hydraulic fluid ports are flowed back to by overflow-valve device, the fluid of such P hydraulic fluid ports is by third through flow hole, mounting hole, the 4th through flow hole
Into the first master control chamber, the fluid of the second master control chamber is communicated by the 5th through flow hole, mounting hole, the second through flow hole and T hydraulic fluid ports, main
Spool moves right and is switched to the logical A hydraulic fluid ports of P hydraulic fluid ports, B hydraulic fluid ports lead to T hydraulic fluid ports position, so far forms cycle, is not necessarily to automatically controlled control.
In further technical solution, the overflow-valve device includes the first overflow valve being arranged on the end cap and the
The oil inlet of two overflow valves, first overflow valve passes through the 6th through flow hole being arranged in the end cap and the A hydraulic fluid ports phase
Logical, overflow port is communicated by the 7th through flow hole being arranged in the end cap with the described first first guide cavity;It is set in the end cap
It is useful for being connected to the 8th through flow hole of the 7th through flow hole and the T hydraulic fluid ports, the first resistance is installed in the 8th through flow hole
Buddhist nun's device;The oil inlet of second overflow valve is identical as the B hydraulic fluid ports by the 9th through flow hole being arranged in the end cap,
Overflow port is communicated by the tenth through flow hole being arranged in the end cap with the described second first guide cavity;It is equipped with and is used in the end cap
It is connected to the 11st through flow hole of the tenth through flow hole and the T hydraulic fluid ports, the second damping is installed in the 11st through flow hole
Device.
In further technical solution, the push rod device includes being plugged in the end cap and being located at the guide
The first push rod and the second push rod of spool left and right ends.
In further technical solution, it is separately installed at the both ends of mounting hole for preventing the elder generation on the main valve plug
Guide valve core is detached from the first screw plug and the second screw plug of the mounting hole, the first screw plug upper edge its be axially arranged with for described
First spliced eye of one push rod grafting, the second screw plug upper edge its be axially arranged with for the second push rod grafting second insert
Connect hole.
In further technical solution, its axial direction of the side upper edge of the pilot valve is equipped with the 4th successively from left to right
Shoulder, the 5th shoulder, the 6th shoulder, the 7th shoulder, first through flow hole are located at described 4th with the mounting hole connectivity part
Between shoulder and the 5th shoulder, second through flow hole and the mounting hole connectivity part are located at the 6th shoulder and described
Between seven shoulders, the third through flow hole and the mounting hole connectivity part be located at the 5th shoulder and the 6th shoulder it
Between.
In further technical solution, it is equipped in the hydraulic pressure end cap for being connected to the A hydraulic fluid ports and the hydraulic cylinder
The third flow channel of interior rodless cavity;The 4th runner being connected to the B hydraulic fluid ports, the hydraulic cylinder are additionally provided in the hydraulic pressure end cap
It is interior to be equipped with equipped with the 5th runner being connected to the 4th runner, in the link block for being connected to the 5th runner and described
6th runner of rod chamber in hydraulic cylinder.
(3) advantageous effect
Compared with prior art, technical scheme of the present invention has the following advantages:The hydraulic cylinder of the hydraulic slurry pump and
Mud pump housing Integral connection structure is compacter, and the reciprocating motion of mud piston is by automatic diverter valve according to hydraulic piston
After reaching both ends extreme position, automatic feedback control, without automatically controlled, more reliable and adapt to the complicated and explosion-proof ring of operating mode
Border;In addition when the automatic diverter valve works, before P hydraulic fluid port oil inlets, push rod device only need to be pushed manually, pilot valve is made to be in
One initial position (being equivalent to launch computer), if making pilot valve be pulled to by push rod device is moved to the left to limit position
It sets, then the fluid of P hydraulic fluid ports enters the first master control by third through flow hole (and P hydraulic fluid ports communicate always), mounting hole, the 4th through flow hole
Chamber, then main valve plug move right (if before main valve plug not extreme position on the right) or be maintained at the right extreme position (such as
Just extreme position on the right before fruit), such P hydraulic fluid ports lead to A hydraulic fluid ports, B hydraulic fluid ports lead to T hydraulic fluid ports.When A hydraulic fluid ports pressure rise to overflow valve
When the pressure of device setting, fluid enters the first first guide cavity by A hydraulic fluid ports, pushes pilot valve to move right, wherein the second guide
The fluid of chamber flows back to T hydraulic fluid ports by overflow-valve device, and the pressure of such P hydraulic fluid ports is by third through flow hole, mounting hole, the 5th through-flow
Hole enters the second master control chamber, and the fluid of the first master control intracavitary passes through the 4th through flow hole, mounting hole, the first through flow hole and T hydraulic fluid port phases
Logical, main valve plug is moved to the left and is switched to the logical B hydraulic fluid ports of P hydraulic fluid ports, A hydraulic fluid ports lead to T hydraulic fluid ports position, so far forms cycle, is not necessarily to automatically controlled control
System;The valve arrangement is simple, easy to process.
Description of the drawings
Fig. 1 is the cross-sectional view of the piston high-density pump of hydraulic-driven in the present embodiment;
Fig. 2 is the first section structure diagram of automatic diverter valve in the present embodiment;
Fig. 3 is the second section structure diagram of automatic diverter valve in the present embodiment;
Fig. 4 is the hydraulic schematic diagram of automatic diverter valve in the present embodiment;
Fig. 5 is the cross-sectional view of main valve core assembly in the present embodiment.
The corresponding component names of reference numeral are:1. end cap;1.1. the 6th through flow hole;1.2. the 7th through flow hole;1.3. the
Eight through flow holes;1.4. the 9th through flow hole;1.5. the tenth through flow hole;1.6. the 11st through flow hole;1a. the first master control chambers;1b. second
Master control chamber;1c. third master control chambers;The 4th master control chambers of 1d.;3. pilot valve;301. the 4th shoulders;302. the 5th shoulders;303.
6th shoulder;304. the 7th shoulders;4. main valve plug;401. mounting hole;402. first shoulder;403. second shoulders;404. third
Shoulder;4.1. the first through flow hole;4.2. third through flow hole;4.3. the 5th through flow hole;4.4. the second through flow hole;4.5. the 4th is through-flow
Hole;The first overflow valves of 5a.;The second overflow valves of 5b.;The first dampers of 6a.;The second dampers of 6b.;The first screw plugs of 7a.;7b.
Two screw plugs;701. first spliced eyes;702. second spliced eyes;The first push rods of 8a.;The second push rods of 8b.;9. valve body;901.P oily
Mouthful;902.A hydraulic fluid port;903.B hydraulic fluid port;904.T hydraulic fluid port;11. hydraulic cylinder;12. the mud pump housing;13. piston rod;14. link block;
15. hydraulic piston;16. mud piston;17. hydraulic pressure end cap;18. mud end cap;19. the first check valve;20. the second check valve;
21. third check valve;22. the 4th check valve;23. first flow;24. second flow channel;25. third flow channel;26. the 4th runner;
27. the 5th runner;28. the 6th runner.
Specific implementation mode
- 5 are please referred to Fig.1, the present invention provides a kind of piston high-density pump of hydraulic-driven, including hydraulic cylinder 11, mud
The pump housing 12, piston rod 13, and be arranged between the hydraulic cylinder 11 and the mud pump housing 12 for connecting the hydraulic pressure
The link block 14 of cylinder body 11 and the mud pump housing 12;The piston rod 13 is slidably connected in the link block 14, and it is left
End is located in the hydraulic cylinder 11, and right end end is located in the mud pump housing 12;It is slidably connected in the hydraulic cylinder 11
The hydraulic piston 15 being connected with 13 left end of the piston rod, slidably connects in the mud pump housing 12 and the piston rod 13 is right
The connected mud piston 16 in end;The left end of the hydraulic cylinder 11 is equipped with hydraulic pressure end cap 17, and the hydraulic pressure end cap 17 is equipped with
Automatic diverter valve for controlling the reciprocating motion of the hydraulic piston 15;The right end of the mud pump housing 12 is equipped with mud end cap
18, the mud end cap 18 is equipped with for controlling the check valve assembly that mud passes in and out in the slush pump body;The check valve
Component includes the first check valve 19 and the second check valve 20 for controlling mud disengaging in rodless cavity in the mud pump housing 12,
And for controlling the third check valve 21 and the 4th check valve 22 that mud passes in and out in rod chamber in the mud pump housing 12;It is described
The first flow 23 for being connected to rodless cavity in the outlet of third check valve 21 and slush pump body is equipped in the mud pump housing 12, with
And the second flow channel 24 for being connected to rod chamber in 22 import of the 4th check valve and slush pump body.
The automatic diverter valve includes the valve body 9 for being internally provided with P hydraulic fluid ports 901, A hydraulic fluid ports 902, B hydraulic fluid ports 903, T hydraulic fluid ports 904,
The left and right ends of the valve body 9 are equipped with end cap 1, are slidably connected in the valve body 9 and are useful for the main valve plug of control port break-make
4, the inside of the main valve plug 4 is axially arranged with perforative mounting hole 401 along it, and guide is slidably connected in the mounting hole 401
Spool 3;Its axial direction of the side upper edge of the main valve plug 4 is equipped with first shoulder 402, the second shoulder 403, third successively from left to right
Shoulder 404, forms the first master control chamber 1a between the first shoulder 402 and the end cap 1, the third shoulder 404 and described
The second master control chamber 1b is formed between end cap 1;The first first guide cavity 1c, institute are formed between the left end of the main valve plug 4 and the end cap 1
It states and forms the second first guide cavity 1d between the right end of main valve plug 4 and the end cap 1;The side of the first shoulder 402, which is equipped with, to be used
In the first through flow hole 4.1 for being connected to the mounting hole 401 and the T hydraulic fluid ports 904;The side of the third shoulder 404 is equipped with
The second through flow hole 4.4 for being connected to the mounting hole 401 and the T hydraulic fluid ports 904;It is set on the side of second shoulder 402
It is useful for being connected to the third through flow hole 4.2 of the mounting hole 401 and the P hydraulic fluid ports 901;It is equipped in the main valve plug 4 for connecting
The 4th through flow hole 4.5 of the logical first master control chamber 1a and the mounting hole 401, and for being connected to the second master control chamber 1b
With the 5th through flow hole 4.3 of the mounting hole 401;It is additionally provided on the end cap 1 for controlling overflowing for the action of the pilot valve 3
Flow valve device, and the push rod device for controlling 3 initial position of the pilot valve.
The overflow-valve device includes the first overflow valve 5a being arranged on the end cap 1 and the second overflow valve 5b, described
The oil inlet of first overflow valve 5a is communicated by the 6th through flow hole 1.1 being arranged in the end cap 1 with the A hydraulic fluid ports 902,
Overflow port is communicated by the 7th through flow hole 1.2 with the first elder generation guide cavity 1c;It is equipped in the end cap 1 for being connected to the described 7th
8th through flow hole 1.3 of through flow hole 1.2 and the T hydraulic fluid ports 904 is equipped with the first damper 6a in the 8th through flow hole 1.3;
The oil inlet of the second overflow valve 5b passes through the 9th through flow hole 1.4 being arranged in the end cap 1 and 903 phase of B hydraulic fluid ports
Together, overflow port is communicated by the tenth through flow hole 1.5 being arranged in the end cap 1 with the second elder generation guide cavity 1d;The end
Interior the 11st through flow hole 1.6 being equipped with for being connected to the tenth through flow hole 1.5 and the T hydraulic fluid ports 904 of lid 1, the described 11st
Second damper 6b is installed in through flow hole 1.6.
The push rod device includes for being plugged in the end cap 1 and being located at 3 left and right ends of the pilot valve
One push rod 8a and the second push rod 8b.It is separately installed at the both ends of mounting hole 401 for preventing the guide on the main valve plug 4
Spool 3 is detached from the first screw plug 7a and the second screw plug 7b of the mounting hole 401, the first screw plug 7a upper edges its be axially arranged with use
In the first spliced eye 701 of the first push rod 8a grafting, the second screw plug 7b upper edges its be axially arranged with for described second
Second spliced eye 702 of push rod 8b grafting.
The side upper edge of the pilot valve 3 its it is axial be equipped with successively from left to right the 4th shoulder 301, the 5th shoulder 302,
6th shoulder 303, the 7th shoulder 304, first through flow hole 4.1 are located at described 4th with 401 connectivity part of the mounting hole
Between shoulder 301 and the 5th shoulder 302, second through flow hole 4.4 and 401 connectivity part of the mounting hole are located at the described 6th
Between shoulder 303 and the 7th shoulder 304, the third through flow hole 4.2 and 401 connectivity part of the mounting hole are located at described the
Between five shoulders 302 and the 6th shoulder 303.
The hydraulic pressure end cap 17 is equipped with for being connected to rodless cavity in the A hydraulic fluid ports 902 and the hydraulic cylinder 11
Three runners 25;The 4th runner 26 being connected to the B hydraulic fluid ports 903, the hydraulic cylinder 11 are additionally provided in the hydraulic pressure end cap 17
It is interior equipped with the 5th runner 27 being connected to the 4th runner 26, be equipped in the link block 14 for being connected to the 5th runner
27 and the hydraulic cylinder 11 in rod chamber the 6th runner 28.
P hydraulic fluid ports 901 and T hydraulic fluid ports 904 are connected with hydraulic oil source when the hydraulic cement slurry pump work, A hydraulic fluid ports 902 and B oil
Mouth 903 is connected with the rodless cavity of hydraulic cylinder 11 and rod chamber respectively;Before 901 oil inlet of P hydraulic fluid ports, first only need to be pushed manually
Push rod 8a or the second push rod 8b makes pilot valve 3 be in an initial position (being equivalent to launch computer), if having pushed
Two push rod 8b, then pilot valve 3, which is pulled to, is moved to the left to extreme position, as shown in Fig. 2, then the fluid of P hydraulic fluid ports 901 is by the
Threeway discharge orifice 4.2 (and P hydraulic fluid ports communicate always), mounting hole 401, the 4th through flow hole 4.5 enter the first master control chamber 1a, then main valve plug
4 move right (if main valve plug before is not extreme position on the right) or be maintained at the right extreme position (if before
The right extreme position), such P hydraulic fluid ports 901 lead to A hydraulic fluid ports 902, B hydraulic fluid ports 903 lead to T hydraulic fluid ports 904, and the hydraulic pressure in hydraulic cylinder 11 is lived
15 drive piston rod 13 of plug starts to move right, and then the mud piston 16 being located in the mud pump housing 12 is driven to transport to the right
It is dynamic so that the mud in the mud pump housing 12 in rodless cavity is discharged, simultaneously because forming vacuum in rod chamber in the mud pump housing 12
And then mud sucking is waited for and is discharged.After the hydraulic piston 15 in hydraulic cylinder 11 moves right to the end, A hydraulic fluid ports 902 are pressed
When power is increased to the setting pressure of the first overflow valve 5a, fluid by A hydraulic fluid ports 902, pass through the 6th through flow hole 1.1, the first overflow valve
5a, the 7th through flow hole 1.2 enter the first first guide cavity 1c, and pilot valve 3 is pushed to move right, wherein the fluid of the second first guide cavity 1d
T hydraulic fluid ports 904, the pressure of such P hydraulic fluid ports 901 are flowed back to by the tenth through flow hole 1.5, the 11st through flow hole 1.6, the second damper 6b
Enter the oil in the second master control chamber 1b, the first master control chamber 1a by third through flow hole 4.2, mounting hole 401, the 5th through flow hole 4.3
Liquid is communicated by the 4th through flow hole 4.5, mounting hole 401, the first through flow hole 4.1 and T hydraulic fluid ports 904, and main valve plug 4 is moved to the left switching
Lead to B hydraulic fluid ports 903 to P hydraulic fluid ports 901, A hydraulic fluid ports 902 lead to 904 position of T hydraulic fluid ports, the hydraulic piston 15 in hydraulic cylinder 11 is with piston
Bar 13 starts to move downward, and then the mud piston 16 being located in the mud pump housing 12 is driven to move downward so that slush pump
Mud in body 12 in rod chamber is discharged, simultaneously because forming vacuum in the mud pump housing 12 in rodless cavity and then sucking mud
Waiting is discharged.After the hydraulic piston 15 in hydraulic cylinder 11 moves downward to the end, the pressure rise of B hydraulic fluid ports 903 to second
When the setting pressure of overflow valve 5b, fluid passes through the 9th through flow hole 1.4, the second overflow valve 5b, the tenth through flow hole by B hydraulic fluid ports 903
1.5 enter the second first guide cavity 1d, and pilot valve 3 is pushed to be moved to the left, and the fluid of the first first guide cavity 1c passes through the 7th through flow hole
1.2, the 8th through flow hole 1.3, the first damper 6a flow back to T hydraulic fluid ports 904, and the fluid of such P hydraulic fluid ports 901 passes through third through flow hole
4.2, mounting hole 401, the 4th through flow hole 4.5 enter the fluid of the first master control chamber 1a, the second master control chamber 1b by the 5th through flow hole
4.3, mounting hole 401, the second through flow hole 4.4 and T hydraulic fluid ports 904 communicate, main valve plug 4 move right be switched to P hydraulic fluid ports 901 lead to A oil
Mouth 902, B hydraulic fluid ports 903 lead to 904 position of T hydraulic fluid ports, so far form cycle, the hydraulic piston 15 in hydraulic cylinder 11 is in reversal valve
Mud piston 16 under control in drive slush pump body 12 moves back and forth, and sucking and the pump of mud can be realized without automatically controlled control
Go out.
Only it is the preferred embodiment of the present invention described in top, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of piston high-density pump of hydraulic-driven, which is characterized in that including hydraulic cylinder, the mud pump housing, piston rod, and
Connection for connecting the hydraulic cylinder and the mud pump housing is set between the hydraulic cylinder and the mud pump housing
Block;The piston rod is slidably connected in the link block, and its left end is located in the hydraulic cylinder, and right end end is located at described
In slush pump body;The hydraulic piston being connected with the piston rod left end, the slush pump are slidably connected in the hydraulic cylinder
Slidably connect the mud piston being connected with the piston rod right end in vivo;The left end of the hydraulic cylinder is equipped with hydraulic end
Lid, the hydraulic end are covered equipped with the automatic diverter valve moved back and forth for controlling the hydraulic piston;The mud pump housing
Right end is equipped with mud end cap, and the mud end cap is equipped with for controlling the unidirectional valve group that mud passes in and out in the slush pump body
Part;The check valve assembly includes for controlling the first check valve and second that mud passes in and out in rodless cavity in the slush pump body
Check valve, and for controlling the third check valve and the 4th check valve that mud passes in and out in rod chamber in the slush pump body;Institute
State the first flow being equipped in slush pump body for being connected to rod chamber in the third one-way valved outlet and slush pump body, Yi Jiyong
In the second flow channel for being connected to rodless cavity in the 4th check valve inlet and slush pump body.
2. the piston high-density pump of hydraulic-driven according to claim 1, which is characterized in that the automatic diverter valve includes
It is internally provided with the valve body of P hydraulic fluid ports, A hydraulic fluid ports, B hydraulic fluid ports, T hydraulic fluid ports, the left and right ends of the valve body are equipped with end cap, in the valve body
It being slidably connected and is useful for the main valve plug of control port break-make, the inside of the main valve plug is axially arranged with perforative mounting hole along it,
Pilot valve is slidably connected in the mounting hole;Its axial direction of the side upper edge of the main valve plug is equipped with first successively from left to right
Shoulder, the second shoulder, third shoulder form the first master control chamber, the third shoulder between the first shoulder and the end cap
The second master control chamber is formed between the end cap;The first first guide cavity, institute are formed between the left end of the main valve plug and the end cap
It states and forms the second first guide cavity between the right end of main valve plug and the end cap;When the main valve plug is located at left position, the P hydraulic fluid ports
It is communicated with the B hydraulic fluid ports, the A hydraulic fluid ports are communicated with the T hydraulic fluid ports;When the main valve plug is located at location right, the P hydraulic fluid ports with
The A hydraulic fluid ports communicate, and the B hydraulic fluid ports are communicated with the T hydraulic fluid ports;
The side of the first shoulder is equipped with the first through flow hole for being connected to the mounting hole and the T hydraulic fluid ports;Described
The side of three shoulders is equipped with the second through flow hole for being connected to the mounting hole and the T hydraulic fluid ports;The side of second shoulder
Face is equipped with the third through flow hole for being connected to the mounting hole and the P hydraulic fluid ports;It is equipped in the main valve plug for being connected to
State the 4th through flow hole of the first master control chamber and the mounting hole, and for being connected to the second master control chamber and the mounting hole
5th through flow hole;When the pilot valve is located at left position, the third through flow hole is communicated with the 4th through flow hole, described
Second through flow hole is communicated with the 5th through flow hole;When the pilot valve is located at location right, the third through flow hole and institute
It states the 5th through flow hole to communicate, first through flow hole is communicated with the 4th through flow hole;
The overflow-valve device for controlling the pilot valve action is additionally provided on the end cap, and for controlling the guide
The push rod device of spool initial position.
3. the piston high-density pump of hydraulic-driven according to claim 2, which is characterized in that the overflow-valve device includes
The first overflow valve and the second overflow valve being arranged on the end cap, the oil inlet of first overflow valve is by being arranged described
The 6th through flow hole in end cap is communicated with the A hydraulic fluid ports, overflow port by the 7th through flow hole that is arranged in the end cap with
Described first first guide cavity communicates;It is equipped in the end cap through-flow for being connected to the 8th of the 7th through flow hole and the T hydraulic fluid ports the
Hole is equipped with the first damper in the 8th through flow hole;
The oil inlet of second overflow valve is identical as the B hydraulic fluid ports by the 9th through flow hole being arranged in the end cap,
Overflow port is communicated by the tenth through flow hole being arranged in the end cap with the described second first guide cavity;It is equipped with and is used in the end cap
It is connected to the 11st through flow hole of the tenth through flow hole and the T hydraulic fluid ports, the second damping is installed in the 11st through flow hole
Device.
4. the piston high-density pump of hydraulic-driven according to claim 3, which is characterized in that the push rod device includes inserting
It is connected in the end cap and is located at the first push rod and the second push rod of the pilot valve left and right ends.
5. the piston high-density pump of hydraulic-driven according to claim 4, which is characterized in that installed on the main valve plug
The both ends in hole are separately installed with the first screw plug and the second screw plug for preventing the pilot valve to be detached from the mounting hole, described
First screw plug upper edge its be axially arranged with the first spliced eye for the first push rod grafting, its axial direction of the second screw plug upper edge
Equipped with the second spliced eye for the second push rod grafting.
6. the piston high-density pump of hydraulic-driven according to claim 2, which is characterized in that the side of the pilot valve
Its axial direction of upper edge is equipped with the 4th shoulder, the 5th shoulder, the 6th shoulder, the 7th shoulder, first through flow hole successively from left to right
With the mounting hole connectivity part between the 4th shoulder and the 5th shoulder, second through flow hole and the installation
Hole connectivity part is between the 6th shoulder and the 7th shoulder, the third through flow hole and mounting hole connectivity part position
Between the 5th shoulder and the 6th shoulder.
7. the piston high-density pump of hydraulic-driven according to claim 2, which is characterized in that be equipped in the hydraulic pressure end cap
Third flow channel for being connected to rodless cavity in the A hydraulic fluid ports and the hydraulic cylinder;It is additionally provided in the hydraulic pressure end cap and the B
4th runner of hydraulic fluid port connection, the hydraulic cylinder is interior to be equipped with the 5th runner being connected to the 4th runner, the link block
Interior the 6th runner being equipped with for being connected to rod chamber in the 5th runner and the hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480340.7A CN108691737B (en) | 2018-05-18 | 2018-05-18 | A kind of piston high-density pump of hydraulic-driven |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480340.7A CN108691737B (en) | 2018-05-18 | 2018-05-18 | A kind of piston high-density pump of hydraulic-driven |
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| Publication Number | Publication Date |
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| CN108691737A true CN108691737A (en) | 2018-10-23 |
| CN108691737B CN108691737B (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810480340.7A Active CN108691737B (en) | 2018-05-18 | 2018-05-18 | A kind of piston high-density pump of hydraulic-driven |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360077A (en) * | 2019-08-16 | 2019-10-22 | 智马（北京）油气设备有限公司 | A kind of auxiliary pumping equipment of the natural gas well |
| CN111594413A (en) * | 2020-05-11 | 2020-08-28 | 合肥通用机械研究院有限公司 | Remote mechanical power driven reciprocating submerged liquid hydrogen pump |
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| FR2762674B1 (en) * | 1997-04-24 | 2000-11-03 | Caterpillar Inc | HYDRAULIC LOAD DETECTION SYSTEM |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110360077A (en) * | 2019-08-16 | 2019-10-22 | 智马（北京）油气设备有限公司 | A kind of auxiliary pumping equipment of the natural gas well |
| CN111594413A (en) * | 2020-05-11 | 2020-08-28 | 合肥通用机械研究院有限公司 | Remote mechanical power driven reciprocating submerged liquid hydrogen pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108691737B (en) | 2019-11-22 |
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Effective date of registration: 20191025 Address after: No.18, Daiwang Road, Chengdong Industrial Park, Taixing Economic Development Zone, Taizhou City, Jiangsu Province Applicant after: Jiangsu Jiapei Environmental Protection Equipment Co., Ltd. Address before: 523000 Dongguan City, Guangdong Province, Songshan Lake High-tech Industrial Development Zone Headquarters, No. 2, No. 1 District, No. 2, No. 201 Applicant before: Dongguan hate Paavo Hydraulic Technology Co., Ltd. |
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