CN107906078A - A kind of cylinder bench frame - Google Patents
A kind of cylinder bench frame Download PDFInfo
- Publication number
- CN107906078A CN107906078A CN201711058467.1A CN201711058467A CN107906078A CN 107906078 A CN107906078 A CN 107906078A CN 201711058467 A CN201711058467 A CN 201711058467A CN 107906078 A CN107906078 A CN 107906078A
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- China
- Prior art keywords
- intermediate plate
- centering
- hydraulic cylinder
- hydraulic
- cylinder
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present patent application belongs to technical field of hydraulic equipment, specifically disclose a kind of cylinder bench frame, including chassis, foreboard, intermediate plate and back plate, wherein foreboard is fixed on chassis both ends with back plate, intermediate plate is slidably connected on chassis, centering hydraulic cylinder is installed in back plate, the piston rod of centering hydraulic cylinder is connected with intermediate plate, internal point is provided among intermediate plate, it is and interior, cavity is equipped between outer wall, the inner wall of intermediate plate has elasticity, hydraulic bag is equipped with cavity, intermediate plate outer wall be equipped with to hydraulic bag lead to hydraulic oil into flowline, hydraulic bag is equipped with valve into flowline, hydraulic bag into flowline and centering hydraulic cylinder being communicated into flowline close to intermediate plate side.Technical solution using the present invention overcomes in the prior art, Centering Clamping to being tested hydraulic cylinder, need to replace the technical problem of intermediate plate transition according to tested hydraulic cylinder specification, so as to provide a kind of tested hydraulic cylinder in clamping process while complete a kind of cylinder bench frame of centering.
Description
Technical field
The invention belongs to technical field of hydraulic equipment, specifically discloses a kind of cylinder bench frame.
Background technology
Cylinder bench is to test hydraulic performance and the key equipment of quality, and hydraulic cylinder product is evaluated by detecting
The performance indicators such as stroke, leakage and load efficiency, avoid there are the hydraulic cylinder of quality problems from entering market, and loss is brought to client
With security risk.What current most of cylinder bench framves were detected just for the hydraulic cylinder of a certain specification, it is applicable in model
It is with limit.
To solve above-mentioned technological deficiency, Authorization Notice No. is that the Chinese invention patent file of CN103075388A discloses one
Kind of hydraulic pressure becomes the fine-tuning positioning lock compact form cylinder bench frame of stroke, mainly including foreboard, intermediate plate, back plate and optical axis, its
In four optical axises by the frame of foreboard, intermediate plate and back plate composition rack, front and rear panels are fixed on optical axis by locking nut
Both ends, intermediate plate can be free to slide on optical axis, in back plate install two centering hydraulic cylinders, the piston rod for hydraulic cylinder of feeling relieved
It is fixed on intermediate plate, its hydraulic control system is installed on the rack below cylinder, and by operating reversal valve, intermediate plate can be
Feel relieved hydraulic cylinder driving under slide and be positioned at some position on optical axis so that control between foreboard and intermediate plate away from
From, make the tested hydraulic cylinder of sample diversified in specifications can install on intermediate plate, with foreboard loading hydraulic cylinder connect
Connect, the load test of tested hydraulic cylinder realized by loading hydraulic cylinder, guide support plate is installed between foreboard and intermediate plate,
For the piston rod of supporting loading hydraulic cylinder and tested hydraulic cylinder at the same time, and guiding role is played, so as to avoid piston rod at this
Body gravity and hydraulic coupling act on flexural deformation, break down.In addition, being provided with foreboard rebound on foreboard, can process
The foreboard rebound of sizes, so as to the loading hydraulic cylinder of the supporting various specifications on foreboard rebound, on intermediate plate
Centre bore it is sufficiently large, two sides is all plane and has internal thread hole, and the middle transition plate that can process sizes is installed on
Between on plate, so as in the tested hydraulic cylinder of the two sides supporting various specifications of intermediate plate.
In the technical solution of above-mentioned patent document, the clamping for being tested hydraulic cylinder with centering process is complete by intermediate plate
Into, but need to replace the middle transition plate of different size according to the diameter of the piston rod of tested hydraulic cylinder.
The content of the invention
The purpose of the present invention is providing a kind of cylinder bench frame, to solve in the prior art in the folder of tested hydraulic cylinder
, it is necessary to replace the technical problem of intermediate plate transition according to tested hydraulic cylinder specification in tight centering step.
In order to achieve the above object, base case of the invention is：A kind of cylinder bench frame, including chassis, foreboard,
Intermediate plate and back plate, the foreboard are fixed on the chassis both ends with back plate, and the intermediate plate is slidably connected on the chassis,
Centering hydraulic cylinder is installed, the piston rod of the centering hydraulic cylinder is connected with the intermediate plate, the intermediate plate in the back plate
Centre is provided with internal point, and cavity is equipped between inside and outside wall, and the inner wall of the intermediate plate has elasticity, the cavity content
Receiving has hydraulic bag, the intermediate plate outer wall be equipped with to hydraulic bag lead to hydraulic oil into flowline, the hydraulic bag into flowline
Be equipped with valve, the hydraulic bag into flowline and centering hydraulic cylinder being communicated into flowline close to intermediate plate side.
The operation principle of this base case is：Tested hydraulic cylinder is placed between intermediate plate and back plate, then by test solution
The piston rod of cylinder pressure passes through the internal point of intermediate plate, after loading hydraulic cylinder is placed on foreboard, starts to press from both sides tested hydraulic cylinder
Tightly with centering.Lead to hydraulic oil into flowline to the close intermediate plate side of centering hydraulic cylinder first, centering hydraulic cylinder is in backhaul
State, since the piston rod for hydraulic cylinder of feeling relieved is connected with intermediate plate, so intermediate plate slides on chassis towards back plate direction at this time,
Constantly clamp tested hydraulic cylinder；Due to hydraulic bag into flowline and centering hydraulic cylinder close to intermediate plate side into flowline phase
It is logical, thus to the close intermediate plate side of centering hydraulic cylinder into flowline lead to hydraulic oil when, the hydraulic pressure in intermediate plate cavity
Capsule can also expand, and since the inner wall of intermediate plate has elasticity, so the expansion of hydraulic bag can force intermediate plate inner wall that shape occurs
Become, eventually the piston rod for being tested hydraulic cylinder is extruded, achieve the purpose that to tested hydraulic cylinder centering.When tested hydraulic cylinder
After centering, close hydraulic bag into the valve on flowline, complete the centering to being tested hydraulic cylinder at this time, it is fixed that hydraulic oil only passes through
Heart hydraulic cylinder enters centering hydraulic cylinder close to intermediate plate side into flowline, and hydraulic cylinder is tested until centering hydraulic cylinder clamps,
Tested hydraulic cylinder is fixed in back plate and intermediate plate.In whole process, it is complete at the same time with centering step to be tested hydraulic cylinder clamping
Into.
Using technical solution of the present invention, realized by the expansion of hydraulic bag to the clamping for being tested hydraulic cylinder piston rod with determining
Heart process, without installing the middle transition plate of different size on intermediate plate with size according to the specification of tested hydraulic cylinder.
Further, be equipped with the internal point when being pressurized can to the centering metal derby of tested hydraulic cylinder piston rod closing,
The quantity at least two of the centering metal derby.When hydraulic bag expands, the elastic inner wall of hydraulic bag extruding intermediate plate is with determining
Heart metal derby, after centering metal derby is squeezed, can piston rod closing to tested hydraulic cylinder, two blocks of centering metal derbies enclose and
Into it is cylindrical less and less, so as to further achieve the purpose that to clamp tested hydraulic cylinder and centering.
Further, the centering metal derby is not less than the thickness of the intermediate plate in the length along vertical intermediate plate direction.
When hydraulic bag expands extruding intermediate plate inner wall with centering metal derby, if centering metal derby is along vertical intermediate plate direction
Length be less than the axle center length of intermediate plate, a tested hydraulic cylinder piston rod part is subject to intermediate plate inner wall and metal derby of feeling relieved
Extruding, and another part is only extruded be subject to intermediate plate inner wall, and hydraulic bag can be intended into internal point without centering gold
Belong to the demi-inflation of block, can cause to be tested the piston rod of hydraulic cylinder radial direction unbalance stress in internal point, not only centering effect
Fruit is bad, is more likely to cause the piston rods bend deformation of tested hydraulic cylinder.
Further, the edge that the centering metal derby stretches out intermediate plate both ends is equipped with flanging, and the flanging is fastened on
On intermediate plate.Centering metal derby can be fixed on intermediate plate by flanging to a certain degree, make centering metal derby can only be along centre
The radial direction movement of plate.
Further, the intermediate plate inner wall is made of elastic rubber.Elastic rubber is most common material in elastic material
One of.
Further, the flanging is connected by spring with the intermediate plate.When a tested hydraulic cylinder performance test is complete
Finish, when removing tested hydraulic cylinder, open hydraulic bag into the valve on flowline, make the hydraulic oil oil return in hydraulic bag,
When centering metal derby is no longer influenced by hydraulic bag extruding, under the action of centering metal derby meeting spring, recovery does not clamp tested hydraulic cylinder
The state of piston rod.The tested hydraulic cylinder of next different size cylinder diameter can be tested for the property at this time.The setting of spring
When being that hydraulic bag no longer extrudes intermediate plate inner wall with centering metal derby in order to prevent, centering metal derby still keeps clamping test solution pressure
The state of cylinder piston rod, is unfavorable for being tested for the property the tested hydraulic cylinder of other different size cylinder diameters.
Brief description of the drawings
Fig. 1 is a kind of structure diagram one of cylinder bench frame embodiment one of the present invention；
Fig. 2 is a kind of structure diagram two of cylinder bench frame embodiment one of the present invention；
A kind of structure diagram of one intermediate plate of cylinder bench frame embodiment of Fig. 3 present invention；
A kind of structure diagram of two intermediate plate of cylinder bench frame embodiment of Fig. 4 present invention；
A kind of structure diagram of three intermediate plate of cylinder bench frame embodiment of Fig. 5 present invention；
A kind of structure diagram of cylinder bench frame example IV intermediate plate of Fig. 6 present invention.
Embodiment
Below by embodiment, the present invention is described in further detail：
Reference numeral in Figure of description includes：It is chassis 1, foreboard 2, intermediate plate 3, back plate 4, centering hydraulic cylinder 5, tested
Hydraulic cylinder 6, loading hydraulic cylinder 7, cavity 8, hydraulic bag 9, centering metal derby 10, spring 11, valve 12, flanging 13.
Embodiment one
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of cylinder bench frame, including chassis 1, foreboard 2, intermediate plate 3, back plate 4 and one
To hydraulic cylinder 5 of feeling relieved, wherein foreboard 2 is fixed by welding in 1 both ends of chassis with back plate 4, and intermediate plate 3 is installed on foreboard 2 with after
Between plate 4, and it is slidably connected on chassis 1, passes through in back plate 4 equipped with centering hydraulic cylinder 5, the piston rod of centering hydraulic cylinder 5
Flanged joint is tested hydraulic cylinder 6 and is installed on by flange in back plate 4, loading hydraulic cylinder 7 is installed by flange on intermediate plate 3
On foreboard 2.The centre of intermediate plate 3 is provided with internal point, and has cavity 8 between inside and outside wall, and the inner wall of intermediate plate 3 is by bullet
Property rubber be made, so the inner wall of intermediate plate 3 has elasticity, it is also the hydraulic bag 9 as made from rubber to accommodate in cavity 8, in
Between 3 outer wall of plate be equipped with to what hydraulic bag 9 led to hydraulic oil and be equipped with valve 12 into flowline into flowline, hydraulic bag 9.
It should be noted that hydraulic bag 9 into flowline and centering hydraulic cylinder 5 close to 3 side of intermediate plate into fuel-displaced
Pipe communicates.
Tested hydraulic cylinder 6 is placed between intermediate plate 3 and back plate 4, then the piston rod of tested hydraulic cylinder 6 is passed through into intermediate plate
3 internal point, after loading hydraulic cylinder 7 is placed on foreboard 2, starts the clamping and centering of tested hydraulic cylinder 6.First to centering hydraulic pressure
Cylinder 5 leads to hydraulic oil close to 3 side of intermediate plate into flowline, and centering hydraulic cylinder 5 is in backhaul state, due to hydraulic cylinder 5 of feeling relieved
Piston rod be connected with intermediate plate 3, so intermediate plate 3 at this time on chassis 1 towards 4 direction of back plate slide, constantly clamp test solution
Cylinder pressure 6；Since hydraulic bag 9 is into flowline and centering being communicated into flowline close to 3 side of intermediate plate of hydraulic cylinder 5, so to
Centering hydraulic cylinder 5 leads to hydraulic oil close to 3 side of intermediate plate into flowline, and the hydraulic bag 9 in 3 cavity of intermediate plate also can be swollen
It is swollen, and since the inner wall of intermediate plate 3 has elasticity, so the expansion of hydraulic bag 9 can force 3 inner wall of intermediate plate to deform upon, most
The piston rod for being tested hydraulic cylinder 6 can be extruded eventually, achieve the purpose that to feel relieved to tested hydraulic cylinder 6.When tested hydraulic cylinder 6 is fixed
After the heart, close hydraulic bag 9 into the valve 12 on flowline, just complete the centering to being tested hydraulic cylinder 6 at this time, hydraulic oil is only
By feeling relieved, hydraulic cylinder 5 enters centering hydraulic cylinder 5 close to 3 side of intermediate plate into flowline, until centering hydraulic cylinder 5 clamps quilt
Hydraulic cylinder 6 is surveyed, tested hydraulic cylinder 6 is fixed in back plate 4 and intermediate plate 3.In whole process, it is tested hydraulic cylinder 6 and clamps and determine
Heart step is completed at the same time.
Embodiment two
With reference to Fig. 4, the difference between this embodiment and the first embodiment lies in：Being equipped with the internal point of intermediate plate 3 can when being pressurized
To the centering metal derby 10 of tested hydraulic cylinder piston rod closing, and to ensure clamping and centering effect, centering metal derby 10
Quantity is two, and centering metal derby 10 is equal to the thickness of intermediate plate 3 in the length along vertical 3 direction of intermediate plate.
When hydraulic bag 9 expands, hydraulic bag 9 extrudes the elastic inner wall and centering metal derby 10 of intermediate plate 3, metal derby of feeling relieved
After 10 are squeezed, piston rod closing of the meeting to tested hydraulic cylinder 6, so that two blocks of centering metal derbies 10 enclose the cylinders formed
It is less and less, so as to achieve the purpose that the piston rod Centering Clamping to being tested hydraulic cylinder 6.
It is important to note that centering metal derby 10 is equal to the thickness of intermediate plate 3 in the length along vertical 3 direction of intermediate plate
Degree, if centering metal derby 10 is less than the axle center length of intermediate plate 3 in the length along vertical 3 direction of intermediate plate, is tested hydraulic cylinder 6
A piston rod part is subject to the extruding of 3 inner wall of intermediate plate and metal derby 10 of feeling relieved, and another part is only subject to 3 inner wall of intermediate plate
Extruding, and hydraulic bag 9 can be intended to not have into internal point to feel relieved the demi-inflation of metal derby 10, can cause tested hydraulic cylinder
6 piston rod radial direction unbalance stress in internal point, not only centering effect is bad, is more likely to cause tested hydraulic cylinder 6
Piston rods bend deforms.
Embodiment three
With reference to Fig. 5, the difference between the present embodiment and the second embodiment lies in that：Metal derby 10 of feeling relieved stretches out the side at 3 both ends of intermediate plate
Edge is equipped with flanging 13, and has flanging 13 to be fastened on intermediate plate 3, so as to feel relieved metal derby 10 to a certain extent
It is fixed on intermediate plate 3, and centering metal derby 10 is moved along the radial direction of intermediate plate 3.
When tested 6 performance test of hydraulic cylinder, which finishes dismounting, is tested hydraulic cylinder 6, the disengaging of hydraulic bag 9 is opened
Valve 12 on oil pipe, at this time the hydraulic oil oil return in hydraulic bag 9, centering metal derby 10 are no longer influenced by hydraulic bag 9 and extrude, feel relieved
Metal derby 10 also under the action of spring 11, recovers not clamping the state of tested 6 piston rod of hydraulic cylinder.At this time can be to next
The tested hydraulic cylinder 6 of different size cylinder diameter is tested for the property.The setting of spring 11 is during hydraulic bag 9 no longer extrudes in order to prevent
Between 3 inner wall of plate with centering metal derby 10 when, centering metal derby 10 still keeps clamping the state of 6 piston rod of test solution cylinder pressure, unfavorable
It is tested for the property in the tested hydraulic cylinder 6 to other different size cylinder diameters.
Example IV
With reference to Fig. 6, the difference between the present embodiment and the second embodiment lies in that：The quantity of centering metal derby 10 is three.
Above-described is only the embodiment of the present invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description., without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, these are implemented all without the influence present invention
Effect and practical applicability.
Claims (6)
1. a kind of cylinder bench frame, including chassis, foreboard, intermediate plate and back plate, the foreboard is fixed on described with back plate
Chassis both ends, the intermediate plate are slidably connected on the chassis, and centering hydraulic cylinder, the centering liquid are provided with the back plate
The piston rod of cylinder pressure is connected with the intermediate plate, it is characterised in that internal point, and inside and outside wall are provided among the intermediate plate
Between be equipped with cavity, the inner wall of the intermediate plate has elasticity, accommodates hydraulic bag in the cavity, the intermediate plate outer wall is set
What oriented hydraulic bag led to hydraulic oil is equipped with valve, the disengaging of the hydraulic bag into flowline, the hydraulic bag into flowline
Oil pipe and centering hydraulic cylinder being communicated into flowline close to intermediate plate side.
2. a kind of cylinder bench frame as claimed in claim 1, it is characterised in that energy when being pressurized is equipped with the internal point
Enough centering metal derbies to tested hydraulic cylinder piston rod closing, the quantity at least two of the centering metal derby.
3. a kind of cylinder bench frame as claimed in claim 2, it is characterised in that the centering metal derby is along in vertical
Between the length in plate direction be not less than the intermediate plate thickness.
4. a kind of cylinder bench frame as claimed in claim 3, it is characterised in that the centering metal derby stretches out intermediate plate
The edge at both ends is equipped with flanging, and the flanging is fastened on intermediate plate.
5. a kind of cylinder bench frame described in claim 1, it is characterised in that the intermediate plate inner wall is by elastic rubber system
Into.
A kind of 6. cylinder bench frame as claimed in claim 4, it is characterised in that the flanging by spring with it is described
Intermediate plate is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711058467.1A CN107906078B (en) | 2017-11-01 | 2017-11-01 | A kind of cylinder bench frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711058467.1A CN107906078B (en) | 2017-11-01 | 2017-11-01 | A kind of cylinder bench frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107906078A true CN107906078A (en) | 2018-04-13 |
| CN107906078B CN107906078B (en) | 2019-05-10 |
Family
ID=61843302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711058467.1A Active CN107906078B (en) | 2017-11-01 | 2017-11-01 | A kind of cylinder bench frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107906078B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345133A (en) * | 2019-07-23 | 2019-10-18 | 泸州沱江液压件有限公司 | A kind of hydraulic cylinder load experiment device |
| CN111514820A (en) * | 2020-04-28 | 2020-08-11 | 北华航天工业学院 | Heavy type quick press |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201687809U (en) * | 2010-05-18 | 2010-12-29 | 南京梅山冶金发展有限公司 | Triangular frame for testing of oil cylinder |
| CN103075388A (en) * | 2013-01-14 | 2013-05-01 | 燕山大学 | Hydraulic variable-stroke finely-tunable positioning locking type hydraulic cylinder testing rack |
| CN203081904U (en) * | 2012-12-19 | 2013-07-24 | 天津工程机械研究院 | Hydraulic cylinder testing bed |
| CN103790895A (en) * | 2014-02-28 | 2014-05-14 | 南京理工大学 | Hydraulic-cylinder lateral force testing device |
| KR20150006155A (en) * | 2013-07-08 | 2015-01-16 | 한국기계연구원 | Performance testing device for cylinder |
-
2017
- 2017-11-01 CN CN201711058467.1A patent/CN107906078B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201687809U (en) * | 2010-05-18 | 2010-12-29 | 南京梅山冶金发展有限公司 | Triangular frame for testing of oil cylinder |
| CN203081904U (en) * | 2012-12-19 | 2013-07-24 | 天津工程机械研究院 | Hydraulic cylinder testing bed |
| CN103075388A (en) * | 2013-01-14 | 2013-05-01 | 燕山大学 | Hydraulic variable-stroke finely-tunable positioning locking type hydraulic cylinder testing rack |
| KR20150006155A (en) * | 2013-07-08 | 2015-01-16 | 한국기계연구원 | Performance testing device for cylinder |
| CN103790895A (en) * | 2014-02-28 | 2014-05-14 | 南京理工大学 | Hydraulic-cylinder lateral force testing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345133A (en) * | 2019-07-23 | 2019-10-18 | 泸州沱江液压件有限公司 | A kind of hydraulic cylinder load experiment device |
| CN111514820A (en) * | 2020-04-28 | 2020-08-11 | 北华航天工业学院 | Heavy type quick press |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107906078B (en) | 2019-05-10 |
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