CN106968999B - A kind of hydraulic hammer control system - Google Patents
A kind of hydraulic hammer control system Download PDFInfo
- Publication number
- CN106968999B CN106968999B CN201710280488.1A CN201710280488A CN106968999B CN 106968999 B CN106968999 B CN 106968999B CN 201710280488 A CN201710280488 A CN 201710280488A CN 106968999 B CN106968999 B CN 106968999B
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- Prior art keywords
- hydraulic
- cylinder
- valve
- fluid port
- hydraulic fluid
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
Abstract
A kind of hydraulic hammer control system, belongs to hydraulic machinery field.Including hydraulic cylinder, hammer stem, tup, valve pocket, cylinder type hydraulic spool, valve pocket seals the top for being fixed on the cylinder body, cylinder type hydraulic spool is arranged in valve pocket, cylinder body, annular convex platform is set in the middle part of cylinder type hydraulic valve, annular convex platform cooperates between valve pocket lower stage terrace to lower end and hydraulic cylinder body top, second step is set in the upper inner wall of cylinder body, cylinder type hydraulic spool is slidably fitted between valve pocket and the second step of cylinder body；The inner end piston of hammer stem is slidably fitted in cylinder type hydraulic spool, in cylinder body；In sleeve side wall, the first hydraulic fluid port is set, second, third hydraulic fluid port is respectively set in sleeve side wall, 4th hydraulic fluid port is set on cylinder side wall, 5th hydraulic fluid port, valve pocket upper top center be arranged the 6th hydraulic fluid port, described first, second, third, fourth, the five, the 6th hydraulic fluid ports be respectively connected to hydraulic oil pipe system.This system spool light weight, relevant block, precision are high, hydraulicefficiency is high.
Description
Technical field
The invention belongs to hydraulic machinery field, in particular to a kind of hydraulic hammer control technology field.
Background technique
The hydraulic hammer of the prior art has two major classes control mode:
Jointly control the beating into oil extraction realization tup of the drive cylinder upper and lower cavity of hydraulic hammer using several plug-in cone valves
It hits and backhaul, plug-in cone valve passes through integrated package channel or pipeline respectively and communicate with hydraulic hammer drive cylinder upper and lower cavity.The technology
Structure is complicated, and several inserted valve controls require high, high failure rate.
Controlling into oil extraction for the drive cylinder upper and lower cavity of hydraulic hammer is realized using dedicated hydraulic efficiency slide valve or cone valve, thus real
The strike and backhaul of existing tup, dedicated hydraulic efficiency slide valve or cone valve generally use level-split type to install, i.e., dedicated hydraulic cunning
Valve or cone valve hydraulic fluid port are communicated by pipeline or integrated package channel with drive cylinder upper and lower cavity.
The technical pattern is complicated, and solid spool quality is big, and oil area is small, and spool action inertia is big, and sensitivity is lower；Point
Complicated from formula installation oil circuit, on-way resistance is big；Since gravity is easy to appear spool valve pocket uneven wear when being horizontally mounted.
The prior art generally uses cylinder or cushion to realize returning buffering, and structure is complicated, high failure rate.
Summary of the invention
In order to overcome the drawbacks of the prior art, the present invention provides a kind of hydraulic hammer control system.
The present invention includes hydraulic cylinder, hammer stem, tup, valve pocket, cylinder type hydraulic spool, and the hydraulic cylinder is the cylinder of upper end opening
Body, the valve pocket sealing are fixed on the top of the cylinder body, and the cylinder type hydraulic spool is arranged in the valve pocket, cylinder body, institute
Stating cylinder type hydraulic spool includes cylinder up and down, annular convex platform is arranged in the middle part of the outer wall of the cylinder, in the valve pocket
First step is arranged in lower sidewall, and the valve pocket lower stage terrace is recessed to annular is formed between lower end and hydraulic cylinder body top
Second step, the cylinder is arranged in the annular groove, in the upper inner wall of the cylinder body in slot, the annular convex platform cooperation
Top is consistent with the inner major diameter of valve pocket to the cylinder diameter between the step surface of second step on body, the cylinder type hydraulic spool
Length be less than the height on the inside of the valve pocket between top and second step, the cylinder type hydraulic spool is slidably fitted in described
Between valve pocket and the second step of cylinder body；The internal diameter of the cylinder type hydraulic spool is equal with the inner major diameter of the cylinder body, described
The inner end of hammer stem is provided with piston, and the piston is slidably fitted in the cylinder type hydraulic spool, in cylinder body, the outer end of the hammer stem
Connect tup；The first hydraulic fluid port is set in side wall of the valve pocket close to upper top, corresponding with the annular groove upper and lower end
Second, third hydraulic fluid port is respectively set in sleeve side wall, the 4th oil of setting on the top cylinder side wall close to the second step
Mouthful, the 5th hydraulic fluid port is set on the cylinder body lower bottom part side wall, the 6th hydraulic fluid port is set at the upper top center of the valve pocket, it is described
The first, second, third, fourth, the five, the 6th hydraulic fluid ports are respectively connected to hydraulic oil pipe system.
Hydraulic oil pipe system of the present invention includes fuel tank, oil pump, inserted valve, control valve, accumulator, and the inserted valve is logical
Pipeline is crossed to connect with oil pump, oil pump by piping connection to fuel tank, first hydraulic fluid port by pipeline respectively with accumulator, inserting
Valve connection, second hydraulic fluid port are connected to fuel tank by pipeline, control valve, and third hydraulic fluid port is inserted by pipeline, control valve with described
Fill valve connection, the 4th hydraulic fluid port by piping connection to fuel tank, the 5th hydraulic fluid port by pipeline respectively at the control valve,
Inserted valve, accumulator connection, pipeline connect with the first hydraulic fluid port, the 5th hydraulic fluid port be connected to inserted valve and the accumulator it
Between pipeline on, for the 6th hydraulic fluid port by piping connection suction valve, the suction valve passes through piping connection fuel tank.
Control valve of the present invention is two position four-way solenoid valves.
The present invention is using dedicated hollow cylinder type hydraulic spool design and is vertically mounted on hydraulic cylinder top, hollow cylinder
Formula hydraulic valve core lighter weight compared with the prior art, fast response time, oil area is big, is particularly suitable for the high-precision of numerical control hydraulic hammer
Degree control；It is vertically arranged to realize the design of oil cylinder hydraulic gauge valve integrated on hydraulic cylinder top, realize main valve and hydraulic cylinder without pipeline
Integration connection, realizes less without on-way resistance, improves hydraulicefficiency, avoid spool valve pocket uneven wear；Piston
It can realize the pressure buffer of backward stroke of the piston by hollow cylinder type hydraulic spool inner hole and realize the recycling benefit of backhaul kinetic energy
With.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention.
Specific embodiment
As shown in Figure 1, this hydraulic hammer control system, including hydraulic cylinder 4, hammer stem 5, tup 6, valve pocket 2, cylinder type hydraulic spool
3, hydraulic cylinder 4 is the cylinder body 17 of upper end opening, and valve pocket 2 seals the top for being fixed on cylinder body 17, and cylinder type hydraulic spool 3 is arranged in valve
In set 2, cylinder body 17, cylinder type hydraulic spool 3 includes cylinder 18 up and down, and annular convex platform is arranged in the middle part of the outer wall of cylinder 18
19, in 2 inner sidewall lower part of valve pocket, first step 20 is set, 2 lower stage terrace of valve pocket to lower end and 17 top of hydraulic cylinder body it
Between formed annular groove 21, annular convex platform 19 cooperate in annular groove 21, cylinder body 17 upper inner wall be arranged second
Rank 22, top is consistent with the inner major diameter of valve pocket 2 to 17 internal diameter of cylinder body between the step surface of second step 22 on cylinder body 17, cylinder
The length of formula hydraulic valve core 3 is less than the height between 2 inside top of valve pocket and second step 22, and the sliding of cylinder type hydraulic spool 3 is matched
It closes between valve pocket 2 and the second step 22 of cylinder body 17；The internal diameter of cylinder type hydraulic spool 3 is equal with the inner major diameter of cylinder body 17,
The inner end of hammer stem 5 is provided with piston 23, and piston 23 is slidably fitted in cylinder type hydraulic spool 3, in cylinder body 17, and the outer end of hammer stem 5 connects
Connect tup 6；The first hydraulic fluid port 11 is set in side wall of the valve pocket close to upper top, in valve pocket 2 corresponding with 21, lower end on annular groove
Second, third hydraulic fluid port 12,13 is respectively set on side wall, the 4th oil of setting on 17 side wall of top cylinder body close to second step 22
The 5th hydraulic fluid port 15 is arranged in mouth 14 on 17 lower bottom part side wall of cylinder body, and the 6th hydraulic fluid port 16 is arranged at the upper top center of valve pocket 2, the
One, second, third, fourth, fifth, the 6th hydraulic fluid port 11,12,13,14,15,16 are respectively connected to hydraulic oil pipe system.
Hydraulic oil pipe system includes fuel tank 24, oil pump 10, inserted valve 9, control valve 8, accumulator 7, and inserted valve 9 passes through pipeline
Connect with oil pump 10, oil pump 10 by piping connection to fuel tank 24, the first hydraulic fluid port 11 by pipeline respectively with accumulator 7, inserting
Valve 9 connects, and the second hydraulic fluid port 12 is connected to fuel tank 24 by pipeline, control valve 8, and third hydraulic fluid port 13 is by pipeline, control valve 8 and inserts
It fills valve 9 to connect, the 4th hydraulic fluid port 17 is by piping connection to fuel tank 24, and the 5th hydraulic fluid port 15 is by pipeline respectively at control valve 8, inserting
Valve 9, accumulator 7 connect, pipeline connect with the first hydraulic fluid port 11, the 5th hydraulic fluid port 15 be connected to inserted valve 9 and accumulator 7 it
Between pipeline on, for the 6th hydraulic fluid port 16 by piping connection suction valve 1, suction valve 1 passes through piping connection fuel tank 24.
Preferably, control valve 8 is two position four-way solenoid valves.
The working principle of this hydraulic hammer is: a controllable hollow cylinder type hydraulic valve is arranged on the top of hydraulic cylinder 4
Core 3, valve pocket 2 is equipped on the outside of cylinder type hydraulic spool 3, and cylinder type hydraulic spool 3 can move up and down in valve pocket 2；Setting in hydraulic cylinder 4
One has the hammer stem 5 of piston, and 3 inner hole of cylinder type hydraulic spool is consistent with 4 interior diameter of hydraulic cylinder, and the piston portion of hammer stem 2 can lead to
Cross the inner hole of cylinder type hydraulic spool 3；Valve pocket 2, which is equipped with, to be controlled oily channel and communicates with control valve 8, and pressure oil passage and accumulation of energy are equipped with
Device 7 communicates, and the commutation action of control valve 8 can control cylinder type hydraulic spool 3 and move up and down in valve pocket 2；4 upper hole of hydraulic cylinder
Wall is equipped with oil return opening 14 and communicates with fuel tank, and lower part hole wall is equipped with pressure oil port 15 and 7 normal open of accumulator；Cylinder type hydraulic spool 3 is just
It is often in the upper end in valve pocket 2, the channel of 5 epicoele of channel, that is, hammer stem of the pressure oil of valve pocket 2 and accumulator 7 is cut off at this time,
The top hole wall oil return opening 14 of hydraulic cylinder 4 is opened simultaneously；
When control valve 8 obtains electric commutation, when cylinder type hydraulic spool 3 is displaced downwardly to lower end in valve pocket 2 under control oil effect, valve
5 epicoele of channel, that is, hammer stem of the pressure oil of set 2 and the channel of accumulator 7 are opened, while the top hole wall oil return opening of hydraulic cylinder 4
14 are closed, and the hydraulic oil of hydraulic oil, the discharge of 5 cavity of resorption of hammer stem that hydraulic oil that oil pump 10 is got, accumulator 7 are discharged while passing through
The channel of the pressure oil of valve pocket 2 enters 5 epicoele of hammer stem, and realization is differential, under hammer stem 5 pushes tup 6 to accelerate under pressure oil effect
It moves；
If tup 6 does not arrive the commutation of 8 power loss of end of travel control valve, cylinder type hydraulic spool 3 is in the upper end in valve pocket 2,
5 epicoele of channel, that is, hammer stem of the pressure oil of valve pocket 2 and the channel of accumulator 7 are cut off, while the top hole wall oil return of hydraulic cylinder 4
Mouth 14 is opened, and hammer stem 5, tup 6 continue to move down under effect of inertia, and 5 epicoele of hammer stem certainly will be allowed to form negative pressure, be placed in valve pocket 2
The suction valve 1 on top may be opened, and 5 epicoele of hammer stem sucks oil by the top hole wall oil return opening 14 or suction valve 1 of hydraulic cylinder 4
The oil of case.
8 power loss of control valve commutate when, cylinder type hydraulic spool 3 control oil effect under in valve pocket 2 on move to top, valve pocket
5 epicoele of channel, that is, hammer stem of 2 pressure oil and the channel of accumulator 7 are cut off, while the top hole wall oil return opening quilt of hydraulic cylinder 4
It opens, after the completion of tup 6 is hit, for tup 6 under the effect of 5 cavity of resorption pressure oil of hammer stem, 5 epicoele of hammer stem is upper by hydraulic cylinder 4
Portion's hole wall oil return opening is communicated with fuel tank, the rapid backhaul of tup 6.
When 5 backhaul of hammer stem is close to upper end, 5 piston of hammer stem enters 3 inner hole of cylinder type hydraulic spool for being in upper end, hammer stem
5 epicoele hydraulic oil are closed and form pressure under the action of 6 backhaul kinetic energy of tup, and pressure oil acts on cylinder type hydraulic spool 3
Upper surface force cylinder type hydraulic spool 3 to move down, 5 epicoele of hammer stem and the channel of the pressure oil of valve pocket 2 are opened, 5 epicoele of hammer stem
Hydraulic oil realizes the absorption of backhaul kinetic energy by pressure people's accumulator；After 6 backhaul kinetic energy of tup disappears, cylinder type hydraulic spool 3 is being controlled
Top is come back under oil effect, 5 epicoele of hammer stem and the channel of the pressure oil of valve pocket 2 are cut off, and tup 6 stops at upper end, etc.
It is hit to next time.
Claims (3)
1. a kind of hydraulic hammer control system, including hydraulic cylinder, hammer stem, tup, it is characterised in that further include valve pocket, cylinder type hydraulic valve
Core, the hydraulic cylinder are the cylinder body of upper end opening, and the valve pocket sealing is fixed on the top of the cylinder body, the cylinder type hydraulic valve
Core is arranged in the valve pocket, cylinder body, and the cylinder type hydraulic spool includes cylinder up and down, the outer wall middle part of the cylinder
Be arranged annular convex platform, valve pocket inner sidewall lower part be arranged first step, the valve pocket lower stage terrace to lower end with it is hydraulic
Annular groove is formed between cylinder cylinder body top, the annular convex platform cooperation is in the annular groove, on the top of the cylinder body
Second step is arranged in inner sidewall, on the cylinder body top to cylinder diameter and valve pocket between the step surface of second step main body
Internal diameter is consistent, and the length of the cylinder type hydraulic spool is less than the height on the inside of the valve pocket between top and second step, described
Cylinder type hydraulic spool is slidably fitted between the valve pocket and the second step of cylinder body；The internal diameter of the cylinder type hydraulic spool and institute
The inner major diameter for stating cylinder body is equal, and the inner end of the hammer stem is provided with piston, and the piston is slidably fitted in the cylinder type hydraulic
In spool, cylinder body, the outer end of the hammer stem connects tup；In side wall of the valve pocket close to upper top, the first hydraulic fluid port is set,
Second, third hydraulic fluid port is respectively set in sleeve side wall corresponding with the annular groove upper and lower end, close to the second step
Top cylinder side wall on be arranged the 4th hydraulic fluid port, on the cylinder body lower bottom part side wall be arranged the 5th hydraulic fluid port, in the valve pocket
Upper top center is arranged the 6th hydraulic fluid port, described first, second, third, fourth, the five, the 6th hydraulic fluid ports be respectively connected to hydraulic oil
Road system.
2. hydraulic hammer control system according to claim 1, it is characterised in that the hydraulic oil pipe system includes fuel tank, oil
Pump, inserted valve, control valve, accumulator, the inserted valve are connect by pipeline with oil pump, and oil pump passes through piping connection to fuel tank,
First hydraulic fluid port is connect with accumulator, inserted valve respectively by pipeline, and second hydraulic fluid port is connected to by pipeline, control valve
Fuel tank, third hydraulic fluid port are connect by pipeline, control valve with the inserted valve, and the 4th hydraulic fluid port passes through piping connection to fuel tank,
5th hydraulic fluid port, respectively at the control valve, inserted valve, accumulator connection, is connected by pipeline with the first hydraulic fluid port, the 5th hydraulic fluid port
The pipeline connect is connected on the pipeline between inserted valve and the accumulator, and the 6th hydraulic fluid port is aspirated by piping connection
Valve, the suction valve pass through piping connection fuel tank.
3. hydraulic hammer control system according to claim 2, it is characterised in that the control valve is two position four-way solenoid valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710280488.1A CN106968999B (en) | 2017-04-26 | 2017-04-26 | A kind of hydraulic hammer control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710280488.1A CN106968999B (en) | 2017-04-26 | 2017-04-26 | A kind of hydraulic hammer control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106968999A CN106968999A (en) | 2017-07-21 |
| CN106968999B true CN106968999B (en) | 2018-12-11 |
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ID=59333302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710280488.1A Active CN106968999B (en) | 2017-04-26 | 2017-04-26 | A kind of hydraulic hammer control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106968999B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1515371A (en) * | 2003-01-02 | 2004-07-28 | 张长龙 | Oil-to-oil free forge hammer power system |
| CN1986109A (en) * | 2006-11-22 | 2007-06-27 | 夏德仕 | Electrohydraulic hammer |
| CN201855907U (en) * | 2010-09-06 | 2011-06-08 | 孙学军 | Hydraulic numerical control forging hammer and hydraulic numerical control forging device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CS272865B1 (en) * | 1988-09-19 | 1991-02-12 | Karol Ing Topor | Accumulator space for hydraulic breakdown hammer |
-
2017
- 2017-04-26 CN CN201710280488.1A patent/CN106968999B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1515371A (en) * | 2003-01-02 | 2004-07-28 | 张长龙 | Oil-to-oil free forge hammer power system |
| CN1986109A (en) * | 2006-11-22 | 2007-06-27 | 夏德仕 | Electrohydraulic hammer |
| CN201855907U (en) * | 2010-09-06 | 2011-06-08 | 孙学军 | Hydraulic numerical control forging hammer and hydraulic numerical control forging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106968999A (en) | 2017-07-21 |
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