CN107237794B - A kind of concreting machinery pumping machine tilt cylinder - Google Patents
A kind of concreting machinery pumping machine tilt cylinder Download PDFInfo
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- CN107237794B CN107237794B CN201710601954.1A CN201710601954A CN107237794B CN 107237794 B CN107237794 B CN 107237794B CN 201710601954 A CN201710601954 A CN 201710601954A CN 107237794 B CN107237794 B CN 107237794B
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- cylinder
- hydraulic fluid
- fluid port
- tilt cylinder
- oil
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Classifications
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- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
-
- 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
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention belongs to concrete machinery technical fields, it is related to a kind of concreting machinery pumping machine tilt cylinder, including piston rod, piston, oil inlet, oil outlet, signal hydraulic fluid port, tilt cylinder cylinder body, rodless cavity, rod chamber, one end of piston rod is connected with piston, it is sealed between piston and tilt cylinder cylinder body, and piston can be slided along tilt cylinder inboard wall of cylinder block, rod chamber is on the right side of tilt cylinder cylinder body inner piston without bar cavity, rodless cavity is to have bar cavity on the left of tilt cylinder cylinder body inner piston, oil inlet is opened in the upper right quarter of rodless cavity, it is connected with one end hydraulic fluid port of oil pump, oil outlet is opened in the upper left quarter of rod chamber, it is connected with the other end hydraulic fluid port of oil pump, signal hydraulic fluid port is opened in the right side of oil inlet, and signal hydraulic fluid port is communicated with oil inlet, signal hydraulic fluid port is connected with external control system, control master cylinder commutation；The impact for reducing tilt cylinder, each pipeline, connector, cantilever crane improves each component life, and oil temperature in hydraulic system reduces, and overall construction design is simple, and safe and reliable to operation, application environment is friendly.
Description
Technical field:
The invention belongs to concrete machinery technical field, it is related to a kind of concreting machinery pumping machine tilt cylinder, especially one
Kind signal hydraulic fluid port merges with inlet (outlet), can reduce the tilt cylinder of Impact in Hydraulic System.
Background technique:
Tilt cylinder is one of important component of concrete pump, and the pump of concrete pump is realized in tilt cylinder and master cylinder alternating movement
Function is sent, when tilt cylinder moves to bottom, master cylinder movement, conversely, when master cylinder is moved to the end, tilt cylinder movement；Be provided on tilt cylinder into
Hydraulic fluid port, oil outlet, signal hydraulic fluid port.Each hydraulic fluid port position of traditional tilt cylinder as shown in Figure 1, signal hydraulic fluid port into and out of between hydraulic fluid port, In
Tilt cylinder piston is moved to the left, and signal oil notice master cylinder is issued by (such as figure position) when signal hydraulic fluid port, at tilt cylinder signal port and is changed
To.But if signal hydraulic fluid port position is different, open pore size is not of uniform size, and the opportunity of notice master cylinder commutation is just different.Signal oil
While notifying master cylinder commutation, tilt cylinder travels forward until bottom.When reaching bottom, no longer demand hydraulic oil.Tradition pendulum
When cylinder reaches bottom, master cylinder commutation is remained unfulfilled.Hydraulic oil is supplied always by oil pump, in the case where space invariance, oil
Liquid has nowhere to run.Pressure gradually rises, and causes to impact to tilt cylinder, each pipeline, connector, cantilever crane, main pump, increases system oil temperature,
It is required that engine power increase overcomes impact.Reduce reliability and service life.Therefore, seek to design a kind of concreting machinery pumping pendulum
Cylinder merges signal hydraulic fluid port with tilt cylinder inlet (outlet).When tilt cylinder starts movement, signal notice master cylinder commutation is issued immediately.It is main
The cylinder reversal valve mobile time moves the time to the end close to tilt cylinder, and the piston of tilt cylinder is made to be moved to the bottom of tilt cylinder cylinder body in this way
When, master cylinder commutation is just completed, and the pressure oil for pumping generation is just transferred to master cylinder from tilt cylinder, and driving master cylinder moves ahead.There is no biographies
Tilt cylinder of uniting is such, and signal issues evening, and in place, commutation has not been completed in master cylinder to tilt cylinder.The oil liquid that pump generates has nowhere to run, can only
It is flowed by gap between limited part.Flow not smooth, generation high pressure.After high pressure, master cylinder commutation is completed, and oil liquid has place
It flows.Pressure decline suddenly again, causes to impact.After new-type tilt cylinder use, pressure peak is detected by instrument, than traditional tilt cylinder
Drop by half or so.Reduce system liquid voltage crest value, so that it may improve the components longevity such as tilt cylinder, each pipeline, connector, cantilever crane, oil pump
Life reduces engine power demand, improves the reliability of whole equipment.
Summary of the invention:
Goal of the invention of the invention is to overcome disadvantage of the existing technology, proposes to design a kind of concreting machinery pumping
Mechanical tilt cylinder is solved Impact in Hydraulic System and is caused each pipe greatly with the defect for overcoming Impact in Hydraulic System caused by traditional tilt cylinder big
The problem of road, connector, cantilever crane, oil pump equivalent life reduce solves Impact in Hydraulic System and causes the raising of system oil temperature, reliability drop greatly
The problem of low, service life reduction, overcomes the defect for increasing engine power.
In order to achieve the above-mentioned object of the invention, concreting machinery pumping machine tilt cylinder of the present invention, main structure packet
Include piston rod, piston, oil inlet, oil outlet, signal hydraulic fluid port, tilt cylinder cylinder body, rodless cavity, rod chamber；One end of piston rod and work
Plug is connected, and seals between piston and tilt cylinder cylinder body, and piston can be slided along tilt cylinder inboard wall of cylinder block, and rodless cavity is living in tilt cylinder cylinder body
Plug right side without bar cavity, rod chamber is to have bar cavity on the left of tilt cylinder cylinder body inner piston；Oil inlet is opened in the upper right of rodless cavity
Portion is connected with one end hydraulic fluid port of oil pump；Oil outlet is opened in the upper left quarter of rod chamber, and the oil liquid of outflow is after cooling oil box is cooling
It is connected with the other end hydraulic fluid port of oil pump；The diameter of signal hydraulic fluid port is 1~4mm, and the right side of oil inlet, and signal hydraulic fluid port is arranged in
It is communicated with oil inlet, realization signal hydraulic fluid port merges with oil inlet, and signal hydraulic fluid port is connected with external control system, controls master cylinder
Commutation.
In the use of the present invention, hydraulic oil out of, oil inlet entering signal hydraulic fluid port and tilt cylinder cylinder body rodless cavity, is pushed and is lived
Plug and piston rod are moved to the left from tilt cylinder cylinder body right end bottom, and the hydraulic oil in rod chamber is flowed out from oil outlet, are opened in tilt cylinder
When initiating is made, signal notice master cylinder commutation is issued immediately；The diameter of reasonable setting signal hydraulic fluid port matches with tilt cylinder size, makes to lead
The cylinder reversal valve mobile time moves time to the end, when piston is moved to tilt cylinder cylinder body left end fastly, master cylinder close to tilt cylinder
Commutation is just completed, and the pressure oil that oil pump generates just is being given for master cylinder, and the pressure peak of hydraulic oil reduces in tilt cylinder cylinder body, is avoided
Tilt cylinder causes greater impact.After master cylinder commutation is mobile, tilt cylinder stopping movement.Master cylinder to the end after, be arranged symmetrically other one
Tilt cylinder movement, drives the intracorporal piston of above-mentioned tilt cylinder cylinder and piston rod to move right together, and tilt cylinder restores original state described herein
State, next circulation start.
Compared with prior art, the present invention signal hydraulic fluid port merges with tilt cylinder oil inlet and outlet, reduce tilt cylinder, each pipeline, connector,
The impact of cantilever crane improves each component life；Oil temperature in hydraulic system reduces, and system reliability and service life improve；Reduce engine function
Rate demand；Its overall construction design is simple, and economic cost is low, and scientific in principle is safe and reliable to operation, and application environment is friendly.
Detailed description of the invention:
Fig. 1 is the overall structure cross-sectional schematic schematic diagram of traditional tilt cylinder.
Fig. 2 is overall structure cross-sectional schematic schematic diagram of the invention.
Specific embodiment:
Below by specific embodiment and in conjunction with attached drawing, the invention will be further described.
Embodiment:
The concreting machinery pumping machine tilt cylinder that the present embodiment is related to, main structure include: piston rod 1, piston 2, into
Hydraulic fluid port 3, oil outlet 4, signal hydraulic fluid port 5, tilt cylinder cylinder body 6, rodless cavity 7, rod chamber 8；One end of piston rod 1 is connected with piston 2, living
It is sealed between plug 2 and tilt cylinder cylinder body 6, and piston 2 can be slided along 6 inner wall of tilt cylinder cylinder body, rodless cavity 7 is 6 inner piston 2 of tilt cylinder cylinder body
Right side without bar cavity, rod chamber 8 is that 6 inner piston of tilt cylinder cylinder body 2 left side has bar cavity；Oil inlet 3 is opened in the right side of rodless cavity 7
Top is connected with one end hydraulic fluid port of oil pump；Oil outlet 4 is opened in the upper left quarter of rod chamber 8, and the oil liquid of outflow is cold through cooling oil box
But it is connected after with the other end hydraulic fluid port of oil pump；The diameter of signal hydraulic fluid port 5 is 1~4mm, the right side of oil inlet 3 is arranged in, and believe
Number hydraulic fluid port 5 is communicated with oil inlet 3, realizes merging for signal hydraulic fluid port 5 and oil inlet 3, signal hydraulic fluid port 5 is connected with external control system
It is logical, control master cylinder commutation.
When the present embodiment is in use, hydraulic oil is out of, 3 entering signal hydraulic fluid port 5 of oil inlet and tilt cylinder cylinder body 6 rodless cavity 7,
Piston 2 and piston rod 1 is pushed to be moved to the left from 6 right end bottom of tilt cylinder cylinder body, the hydraulic oil in rod chamber 8 is flowed from oil outlet 4
Out, when tilt cylinder starts movement, signal notice master cylinder commutation is issued immediately；The diameter and tilt cylinder ruler of reasonable setting signal hydraulic fluid port 5
It is very little to match, time of the time for keeping master cylinder reversal valve mobile close to tilt cylinder movement to the end, when piston 2 is moved to tilt cylinder cylinder body fastly
When 6 left end, master cylinder commutation is just completed, and the pressure oil that oil pump generates just is being given for master cylinder, the pressure of hydraulic oil in tilt cylinder cylinder body 6
Power peak value reduces, and tilt cylinder is avoided to cause greater impact.After master cylinder commutation is mobile, tilt cylinder stopping movement.Master cylinder to the end after, symmetrically
The other tilt cylinder movement of arrangement, drives the intracorporal piston of above-mentioned tilt cylinder cylinder and piston rod to move right together, tilt cylinder restores
Original state described herein, next circulation start.
Claims (1)
1. a kind of concreting machinery pumping machine tilt cylinder, it is characterised in that main structure includes piston rod, piston, oil inlet, goes out
Hydraulic fluid port, signal hydraulic fluid port, tilt cylinder cylinder body, rodless cavity, rod chamber；One end of piston rod is connected with piston, piston and tilt cylinder cylinder body it
Between seal, and piston can be slided along tilt cylinder inboard wall of cylinder block, and rodless cavity is on the right side of tilt cylinder cylinder body inner piston without bar cavity, rod chamber
To have bar cavity on the left of tilt cylinder cylinder body inner piston；Oil inlet is opened in the upper right quarter of rodless cavity, is connected with one end hydraulic fluid port of oil pump
It is logical；Oil outlet is opened in the upper left quarter of rod chamber, and the oil liquid of outflow is connected after cooling oil box is cooling with the other end hydraulic fluid port of oil pump
It is logical；The diameter of signal hydraulic fluid port is 1~4mm, the right side of oil inlet is arranged in, and signal hydraulic fluid port is communicated with oil inlet, realizes signal
Hydraulic fluid port merges with oil inlet, and signal hydraulic fluid port is connected with external control system, control master cylinder commutation；Hydraulic oil from oil inlet into
In the rodless cavity for entering signal hydraulic fluid port and tilt cylinder cylinder body；The diameter of reasonable setting signal hydraulic fluid port matches with tilt cylinder size, makes master cylinder
The reversal valve mobile time moves the time to the end close to tilt cylinder, and when piston is moved to tilt cylinder cylinder body left end fastly, master cylinder is changed
To just completing, the pressure oil that oil pump generates just is being given for master cylinder, and the pressure peak of hydraulic oil reduces in tilt cylinder cylinder body, avoids putting
Cylinder causes greater impact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710601954.1A CN107237794B (en) | 2017-07-21 | 2017-07-21 | A kind of concreting machinery pumping machine tilt cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710601954.1A CN107237794B (en) | 2017-07-21 | 2017-07-21 | A kind of concreting machinery pumping machine tilt cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107237794A CN107237794A (en) | 2017-10-10 |
| CN107237794B true CN107237794B (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710601954.1A Active CN107237794B (en) | 2017-07-21 | 2017-07-21 | A kind of concreting machinery pumping machine tilt cylinder |
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| CN (1) | CN107237794B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201461605U (en) * | 2009-06-29 | 2010-05-12 | 杭州专用汽车有限公司 | Concrete pumping hydraulic system of arm support pump truck |
| CN201963635U (en) * | 2011-04-08 | 2011-09-07 | 中集车辆（集团）有限公司 | Piston oil cylinder and concrete pump with same |
| CN203214263U (en) * | 2013-04-08 | 2013-09-25 | 华菱星马汽车（集团）股份有限公司 | Concrete pump |
| CN203420959U (en) * | 2013-08-19 | 2014-02-05 | 大唐石门发电有限责任公司 | Loaded car shunting locomotive big-arm drive hydraulic system |
| CN203655770U (en) * | 2013-10-31 | 2014-06-18 | 飞翼股份有限公司 | Valve group, hydraulic system and coalmine-used concrete conveying equipment |
Family Cites Families (7)
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|---|---|---|---|---|
| FI99266C (en) * | 1996-03-15 | 1998-02-10 | Tamrock Oy | Arrangement in a pressure medium cylinder |
| JP3894923B2 (en) * | 2004-03-05 | 2007-03-22 | 極東開発工業株式会社 | Vibration control device for concrete pump vehicle |
| JP2009250252A (en) * | 2008-04-01 | 2009-10-29 | Kana Yasuda | Hydraulic cylinder device |
| CN103423139B (en) * | 2012-05-23 | 2016-04-27 | 中联重科股份有限公司 | Pumping mechanism and controlling method thereof and concrete pumping equipment |
| JP5849023B2 (en) * | 2012-06-19 | 2016-01-27 | 株式会社クボタ | Working machine |
| CN102878044B (en) * | 2012-10-17 | 2015-01-07 | 飞翼股份有限公司 | Full hydraulic control mining concrete pump |
| CN207246149U (en) * | 2017-07-21 | 2018-04-17 | 青岛九合重工机械有限公司 | A kind of concreting machinery pumping machine tilt cylinder |
-
2017
- 2017-07-21 CN CN201710601954.1A patent/CN107237794B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201461605U (en) * | 2009-06-29 | 2010-05-12 | 杭州专用汽车有限公司 | Concrete pumping hydraulic system of arm support pump truck |
| CN201963635U (en) * | 2011-04-08 | 2011-09-07 | 中集车辆（集团）有限公司 | Piston oil cylinder and concrete pump with same |
| CN203214263U (en) * | 2013-04-08 | 2013-09-25 | 华菱星马汽车（集团）股份有限公司 | Concrete pump |
| CN203420959U (en) * | 2013-08-19 | 2014-02-05 | 大唐石门发电有限责任公司 | Loaded car shunting locomotive big-arm drive hydraulic system |
| CN203655770U (en) * | 2013-10-31 | 2014-06-18 | 飞翼股份有限公司 | Valve group, hydraulic system and coalmine-used concrete conveying equipment |
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| Publication number | Publication date |
|---|---|
| CN107237794A (en) | 2017-10-10 |
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