CN109973465A - Double oil cylinder consecutive order telescopic devices and two-stage telescopic arm - Google Patents
Double oil cylinder consecutive order telescopic devices and two-stage telescopic arm Download PDFInfo
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- CN109973465A CN109973465A CN201910348051.6A CN201910348051A CN109973465A CN 109973465 A CN109973465 A CN 109973465A CN 201910348051 A CN201910348051 A CN 201910348051A CN 109973465 A CN109973465 A CN 109973465A
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- 239000000725 suspension Substances 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 26
- 239000010720 hydraulic oil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
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
- 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
- F15B15/1404—Characterised by the construction of the motor unit of the straight-cylinder type in clusters, e.g. multiple cylinders in one block
-
- 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
- F15B15/202—Externally-operated valves mounted in or on the actuator
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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
A kind of double oil cylinder consecutive order telescopic devices and two-stage telescopic arm, telescopic device includes one, secondary cylinder, first-stage cylinder piston rod cavity is equipped with center-pole, center-pole one end is connected to by the first connecting tube with first-stage cylinder rodless cavity after passing through first-stage cylinder, first connecting tube is equipped with check valve, the second connecting tube is connected between first connecting tube and first-stage cylinder rodless cavity, stroke valve is installed in second connecting tube, center-pole is connected to by third connecting tube with secondary cylinder rodless cavity, check valve is equipped between center-pole and third connecting tube, trigger assembly is equipped between secondary cylinder and stroke valve, trigger assembly can be such that the first check valve opens；Two-stage telescopic arm includes that basic arm, I and II arm and the telescopic device, basic arm are connect with level-one cylinder piston rod, and level-one arm, second level arm are connect with first-stage cylinder, secondary cylinder cylinder body respectively.Structure of the invention design is simple ingenious, can accomplish that oil cylinder sequential telescopic, cylinder thrust improve completely, save the cost, system reliability improves, and can meet different working condition requirements.
Description
Technical field
The present invention relates to multi-stage oil cylinder control technology field, in particular relate to a kind of double oil cylinder consecutive order telescopic devices and
Two-stage telescopic arm.
Background technique
Existing Multi-cylinder sequential telescopic uses following two mode more:
1, using hydraulic sequence valve: for this sequence valve by setting different pressure, when cylinder movement, first opens small pressure
Valve, then open the valve of big pressure, by setting the height of pressure, control the flexible sequence of oil cylinder.This sequence valve deficiency
Place is the uncontrollable of sequential telescopic, and when encountering load greatly and larger pressure being needed to push oil cylinder, sequence valve is opened simultaneously, and occurs
The phenomenon that Multi-cylinder simultaneous retractable, sequentially-operating can not just guarantee；In addition sequence valve consumes a part of system pressure, is used for
The pressure of oil cylinder reduces, and greatly reduces the thrust of oil cylinder, the flexible ability of oil cylinder substantially reduces；
2, using hydraulic sequence valve+mechanical trip valve: the use of hydraulic sequence valve equally has deficiency above；Machine above
Tool stroke valve opens check valve by collision block, and unlatching thrust is big, and impact is big, and striker reduces the area of hydraulic runner, causes back
The defects of oily back pressure is high, the pressure loss is big, hydraulic system temperature rise is fast.
How to design a kind of can solve double oil cylinder consecutive order telescopic devices of above-mentioned technical problem and two-stage telescopic arm is
The project that the present inventor concentrates on studies.
Summary of the invention
The object of the present invention is to provide a kind of double oil cylinder consecutive order telescopic devices, structure design is simple ingenious, can
Accomplish that two-stage oil cylinder sequential telescopic, cylinder thrust improve completely, save the cost, system reliability improves, and can meet different operating conditions
It is required that.
In order to realize above scheme, the present invention provides a kind of double oil cylinder consecutive order telescopic devices, including first-stage cylinder
And secondary cylinder, the piston rod cavity of the first-stage cylinder are equipped with center-pole, one end of the center-pole passes through after first-stage cylinder by the
One connecting tube is connected to the rodless cavity of first-stage cylinder, first connecting tube be equipped with the first check valve, first connecting tube with
It is connected with the second connecting tube between the rodless cavity of first-stage cylinder, stroke valve is installed in second connecting tube, the center-pole is logical
It crosses third connecting tube to be connected to the rodless cavity of secondary cylinder, second one-way valve, institute is equipped between the center-pole and third connecting tube
It states and is provided with trigger assembly between secondary cylinder and stroke valve, first check valve is triggered when the trigger assembly touches and is beaten
It opens.
Double oil cylinder consecutive order telescopic devices of the invention, wherein the trigger assembly includes the top connected on the stroke valve
The bracket connected on bar and the secondary cylinder cylinder body, the suspension end of the bracket are connected with collision block, and the collision block faces described
Mandril, when the cylinder body of the secondary cylinder retracts, the collision block and the mandril are collided, and first check valve is opened.
Double oil cylinder consecutive order telescopic devices of the invention, wherein further including stroke valve block, stroke valve block one end is leaned on
Outer rim position and centre are respectively equipped with the first open slot and the second open slot, the outer surface of the stroke valve block be provided with
The third open slot that first open slot, the second open slot are connected to, the third open slot and the first open slot, the second open slot are handed over
Fork, first check valve, second one-way valve are respectively arranged in the first open slot, in the second open slot, in the stroke valve block
It is additionally provided with the through-hole parallel with first open slot, the second open slot, the stroke valve is installed on the through-hole.
Double oil cylinder consecutive order telescopic devices of the invention, wherein the work of cylinder body one end of the first-stage cylinder and the secondary cylinder
Stopper rod is hinged.
A kind of two-stage telescopic arm is stretched including basic arm, level-one arm and second level arm and double oil cylinder consecutive orders
Compression apparatus, the basic arm are connect with the piston rod of the first-stage cylinder, and the level-one arm is connect with the cylinder body of the first-stage cylinder, institute
Second level arm is stated to connect with the cylinder body of the secondary cylinder.
After adopting the above scheme, the double oil cylinder consecutive order telescopic devices of the present invention and two-stage telescopic arm have below beneficial to effect
Fruit:
1, first-stage cylinder, secondary cylinder can accomplish sequential telescopic completely, make level-one arm, second level arm sequential telescopic, do not loaded
The influence of variation；
2, the present invention improves first-stage cylinder, the thrust of secondary cylinder, so that the pressure of hydraulic oil is entirely used for cylinder movement, does not have
The pressure loss；
3, due to the increase of first-stage cylinder, secondary cylinder thrust, first-stage cylinder, secondary cylinder can be designed to the type of more small dimension
Number, save cost；
4, the design does not have the oil inlet and oil return pressure loss, reduces system heat generation, improves the reliability of system；
5, since stroke valve, the first check valve and second one-way valve are set to slide design in stroke valve block, so that hitting
It is small that block opens power, and system operation is more stable；It can be needed according to system, easily designed different flow, met different operating conditions and wanted
It asks.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the double oil cylinder consecutive order telescopic devices of the present invention；
Fig. 2 is the schematic illustration of the double oil cylinder consecutive order telescopic devices of the present invention；
Fig. 3 is the schematic perspective view that stroke valve of the invention, the first and second check valve are installed on stroke valve block；
Fig. 4 is longitudinal schematic cross-sectional view one of Fig. 3；
Fig. 5 is that society's structural schematic diagram two is cutd open in the longitudinal direction of Fig. 3.
Specific embodiment
As shown in Figures 1 and 2, the double oil cylinder consecutive order telescopic devices of the present invention include first-stage cylinder 1 and secondary cylinder 2, level-one
Cylinder body one end of cylinder 1 and the piston rod of secondary cylinder 2 are articulated and connected by pin shaft.The piston rod cavity of first-stage cylinder 1 has placed tubulose
Center-pole 3, one end of center-pole 3 are connected to by the first connecting tube 4 with the rodless cavity of first-stage cylinder 1 after passing through first-stage cylinder 1, and first connects
Adapter tube 4 is equipped with the first check valve 5, is connected with the second connecting tube 6 between the first connecting tube 4 and the rodless cavity of first-stage cylinder 1, and second
Stroke valve 7 is installed, it is bi-bit bi-pass Mechanical course reversal valve, the import of the trip valve 7 that the trip valve 7, which uses, in connecting tube 6
Connected by the second connecting tube 6 with first-stage cylinder rodless cavity, the outlet of stroke valve 7 is connect by the first connecting tube 4 with center-pole 3.In
Core bar 3 is connected to by third connecting tube 8 with the rodless cavity of secondary cylinder 2.It is single that second is equipped between center-pole 3 and third connecting tube 8
To valve 9, trigger assembly is provided between secondary cylinder 2 and stroke valve 7, trigger assembly includes 10 He of mandril connected on stroke valve 7
The bracket 11 connected on 2 cylinder body of secondary cylinder, the suspension end of bracket 11 are connected with collision block 12, and collision block 12 faces mandril 10, when two
When the cylinder body of grade cylinder 2 retracts, collision block 12 and mandril 10 are collided, and the first check valve 5 is opened.
It further include stroke valve block 13, with reference to shown in Fig. 3, Fig. 4 and Fig. 5, one end of stroke valve block 13 is equipped with by outer edge position
The end centre of first open slot 14, stroke valve block 13 is equipped with the second open slot 15.The outer surface of stroke valve block 13 is equipped with
The third open slot 16 being connected to the first open slot 14, the second open slot 15, third open slot 16 and the first open slot 14, second
Open slot 15 is in intersecting, and the first check valve 5 is installed in the first open slot 14, and second one-way valve 9 is installed on the second open slot 15
It is interior, the through-hole 17 parallel with the first open slot 14, the second open slot 15 is additionally provided in stroke valve block 13, stroke valve 7 is installed on this
In through-hole 17.
Two-stage telescopic arm of the present invention includes that double oil cylinders described in basic arm, level-one arm and second level arm and above-mentioned Fig. 1, Fig. 2 connect
Continuous sequential telescopic device, basic arm are connect with the piston rod of first-stage cylinder 1, and level-one arm is connect with the cylinder body of first-stage cylinder 1, second level arm and
The cylinder body of secondary cylinder 2 connects.
Refering to what is shown in Fig. 2, the process of stretching is: hydraulic oil enters the rodless cavity of first-stage cylinder 1 by the first check valve 5, makes one
The cylinder body of grade cylinder 1 stretches out, and drives level-one arm, second level arm and secondary cylinder 2 to stretch out, after the cylinder body of first-stage cylinder 1 is fully extended, passes through
Center-pole 3 inside first-stage cylinder 1 opens second one-way valve 9, and hydraulic oil is allowed to enter the rodless cavity of secondary cylinder 2, the cylinder body of secondary cylinder 2
It stretches out and second level arm is driven to stretch out, until secondary cylinder 2 is fully extended；
Retraction process is: the rod chamber of rod chamber of the hydraulic oil Jing Guo first-stage cylinder 1 to secondary cylinder 2, due in first-stage cylinder 1
The effect of first check valve 5, the hydraulic oil in the rodless cavity of first-stage cylinder 1 be closed can not oil return, so the cylinder barrel of secondary cylinder 2
It first retracts, when secondary cylinder 2 is fully retracted, the collision block 12 arranged on cylinder body bottom hits 1 cylinder body upper ejector pin 10 of first-stage cylinder, opens
The oil circuit of 1 rodless cavity of first-stage cylinder, makes the hydraulic oil oil return of 1 rodless cavity of first-stage cylinder, and the cylinder body of first-stage cylinder 1 retracts.
Embodiment described above is only that preferred embodiments of the present invention will be described, not to the scope of the present invention
It is defined, without departing from the spirit of the design of the present invention, this field ordinary engineering and technical personnel is to technology of the invention
The various changes and improvements that scheme is made, should fall within the scope of protection determined by the claims of the present invention.
Claims (5)
1. a kind of double oil cylinder consecutive order telescopic devices, which is characterized in that including first-stage cylinder and secondary cylinder, the work of the first-stage cylinder
Stopper rod inner cavity is equipped with center-pole, and one end of the center-pole passes through the rodless cavity of the first connecting tube and first-stage cylinder after first-stage cylinder
Connection, first connecting tube are equipped with the first check valve, are connected between first connecting tube and the rodless cavity of first-stage cylinder
Second connecting tube, stroke valve is equipped in second connecting tube, and the center-pole passes through the nothing of third connecting tube and secondary cylinder
Rod cavity connection, is equipped with second one-way valve, is arranged between the secondary cylinder and stroke valve between the center-pole and third connecting tube
There is trigger assembly, first check valve is triggered when the trigger assembly touches and is opened.
2. double oil cylinder consecutive order telescopic devices according to claim 1, which is characterized in that the trigger assembly includes institute
The bracket stating the mandril connected on stroke valve and connecting on the secondary cylinder cylinder body, the suspension end of the bracket are connected with collision block,
The collision block faces the mandril, and when the cylinder body of the secondary cylinder retracts, the collision block and the mandril are collided, will be described
First check valve is opened.
3. double oil cylinder consecutive order telescopic devices according to claim 1, which is characterized in that further include stroke valve block, institute
That states stroke valve block one end is respectively equipped with the first open slot and the second open slot, the stroke valve by outer edge position and centre
The outer surface of block is provided with the third open slot being connected to the first open slot, the second open slot, the third open slot and first
Open slot, the second open slot intersect, and first check valve, second one-way valve are respectively arranged in the first open slot, the second opening
In slot, the through-hole parallel with first open slot, the second open slot, the stroke valve installation are additionally provided in the stroke valve block
In the through-hole.
4. double oil cylinder consecutive order telescopic devices according to claim 1, which is characterized in that the cylinder body one of the first-stage cylinder
It holds hinged with the piston rod of the secondary cylinder.
5. a kind of two-stage telescopic arm, which is characterized in that including basic arm, level-one arm and any one of second level arm and claim 1-4
Double oil cylinder consecutive order telescopic devices, the basic arm are connect with the piston rod of the first-stage cylinder, the level-one arm with
The cylinder body of the first-stage cylinder connects, and the second level arm is connect with the cylinder body of the secondary cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910348051.6A CN109973465A (en) | 2019-04-26 | 2019-04-26 | Double oil cylinder consecutive order telescopic devices and two-stage telescopic arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910348051.6A CN109973465A (en) | 2019-04-26 | 2019-04-26 | Double oil cylinder consecutive order telescopic devices and two-stage telescopic arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109973465A true CN109973465A (en) | 2019-07-05 |
Family
ID=67086700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910348051.6A Pending CN109973465A (en) | 2019-04-26 | 2019-04-26 | Double oil cylinder consecutive order telescopic devices and two-stage telescopic arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109973465A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439690A (en) * | 2020-05-12 | 2020-07-24 | 江苏宏昌天马物流装备有限公司 | Multi-oil-cylinder sequential telescopic hydraulic system and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213403A (en) * | 2001-01-18 | 2002-07-31 | Ckd Corp | Sequentially operated-cylinder system |
| CN202829375U (en) * | 2012-04-05 | 2013-03-27 | 大连益利亚工程机械有限公司 | Sequentially-telescopic multistage binding oil cylinder structure |
| CN105650054A (en) * | 2016-03-31 | 2016-06-08 | 江阴市洪腾机械有限公司 | Dual-support hydraulic oil cylinder |
| CN105864134A (en) * | 2016-04-22 | 2016-08-17 | 三帕尔菲格特种车辆装备有限公司 | Multi-oil-cylinder sequential telescopic system and crane |
| CN209892544U (en) * | 2019-04-26 | 2020-01-03 | 江苏宏昌天马物流装备有限公司 | Double-oil-cylinder continuous sequential telescopic device and two-stage telescopic arm |
-
2019
- 2019-04-26 CN CN201910348051.6A patent/CN109973465A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002213403A (en) * | 2001-01-18 | 2002-07-31 | Ckd Corp | Sequentially operated-cylinder system |
| CN202829375U (en) * | 2012-04-05 | 2013-03-27 | 大连益利亚工程机械有限公司 | Sequentially-telescopic multistage binding oil cylinder structure |
| CN105650054A (en) * | 2016-03-31 | 2016-06-08 | 江阴市洪腾机械有限公司 | Dual-support hydraulic oil cylinder |
| CN105864134A (en) * | 2016-04-22 | 2016-08-17 | 三帕尔菲格特种车辆装备有限公司 | Multi-oil-cylinder sequential telescopic system and crane |
| CN209892544U (en) * | 2019-04-26 | 2020-01-03 | 江苏宏昌天马物流装备有限公司 | Double-oil-cylinder continuous sequential telescopic device and two-stage telescopic arm |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439690A (en) * | 2020-05-12 | 2020-07-24 | 江苏宏昌天马物流装备有限公司 | Multi-oil-cylinder sequential telescopic hydraulic system and control method |
| CN111439690B (en) * | 2020-05-12 | 2024-05-24 | 江苏宏昌天马物流装备有限公司 | Multi-cylinder sequential telescopic hydraulic system and control method |
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