CN107906078B - A kind of cylinder bench frame - Google Patents
A kind of cylinder bench frame Download PDFInfo
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- CN107906078B CN107906078B CN201711058467.1A CN201711058467A CN107906078B CN 107906078 B CN107906078 B CN 107906078B CN 201711058467 A CN201711058467 A CN 201711058467A CN 107906078 B CN107906078 B CN 107906078B
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- intermediate plate
- centering
- hydraulic
- hydraulic cylinder
- cylinder
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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 and back plate are fixed on chassis both ends, intermediate plate is slidably connected on chassis, centering hydraulic cylinder is installed in back plate, the piston rod of centering hydraulic cylinder is connect with intermediate plate, internal point is provided among intermediate plate, and it is interior, cavity is equipped between outer wall, the inner wall of intermediate plate has elasticity, hydraulic bag is equipped in cavity, intermediate plate outer wall is equipped with the disengaging oil pipe for leading to hydraulic oil to hydraulic bag, the disengaging oil pipe of hydraulic bag is equipped with valve, disengaging oil pipe of the disengaging oil pipe and centering hydraulic cylinder of hydraulic bag close to intermediate plate side communicates.It is overcome in the prior art using technical solution of the present invention, Centering Clamping to tested hydraulic cylinder, the technical issues of needing according to the replacement intermediate plate transition of hydraulic cylinder specification is tested, to provide a kind of cylinder bench frame that a kind of tested hydraulic cylinder is completed at the same time centering in clamping process.
Description
Technical field
The invention belongs to technical field of hydraulic equipment, specifically disclose a kind of cylinder bench frame.
Background technique
Cylinder bench is the key equipment for testting hydraulic performance and quality, and hydraulic cylinder product is evaluated by detecting
The performance indicators such as stroke, leakage and load efficiency, avoid the hydraulic cylinder there are quality problems from entering market, bring loss 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 hydraulic fine-tuning positioning lock compact form cylinder bench frame of changes stroke, mainly including foreboard, intermediate plate, back plate and optical axis,
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, hydraulic control system is mounted on the rack below cylinder, and by operating reversal valve, intermediate plate can be
Feel relieved hydraulic cylinder driving under slide and be located in some position on optical axis, thus control between foreboard and intermediate plate away from
From installing the tested hydraulic cylinder of sample diversified in specifications can on intermediate plate, connect with the loading hydraulic cylinder that is mounted on foreboard
It connects, the load test of tested hydraulic cylinder is 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 simultaneously, and guiding role is played, to avoid piston rod at this
Body gravity and hydraulic coupling act on bending deformation, break down.In addition, being equipped with foreboard transition plates on foreboard, can process
The foreboard transition plates of sizes, so as to the loading hydraulic cylinder of the supporting various specifications in foreboard transition plates, 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 mounted 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 of tested hydraulic cylinder is complete by intermediate plate with centering process
At, but need the middle transition plate of the diameter replacement different size according to the piston rod for being tested hydraulic cylinder.
Summary 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
In tight centering step, the technical issues of needs according to the replacement intermediate plate transition of hydraulic cylinder specification is tested.
In order to achieve the above object, base case of the invention are as follows: a kind of cylinder bench frame, including chassis, foreboard,
Intermediate plate and back plate, the foreboard and back plate are fixed on the chassis both ends, and the intermediate plate is slidably connected on the chassis,
Centering hydraulic cylinder is installed, the piston rod of the centering hydraulic cylinder is connect 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, and the intermediate plate outer wall is equipped with the disengaging oil pipe for leading to hydraulic oil to hydraulic bag, the disengaging oil pipe of the hydraulic bag
It is equipped with valve, disengaging oil pipe of the disengaging oil pipe and centering hydraulic cylinder of the hydraulic bag close to intermediate plate side communicates.
The working principle of this base case is: tested hydraulic cylinder being 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 to the disengaging oil pipe of the centering close intermediate plate side of hydraulic cylinder first, centering hydraulic cylinder is in backhaul
State, since the piston rod of centering hydraulic cylinder is connect with intermediate plate, so intermediate plate slides on chassis towards back plate direction at this time,
Constantly clamp tested hydraulic cylinder；Disengaging oil pipe due to hydraulic bag and disengaging oil pipe phase of the hydraulic cylinder close to intermediate plate side of feeling relieved
It is logical, so when leading to hydraulic oil to the disengaging oil pipe of the centering close intermediate plate side of hydraulic cylinder, it is hydraulic 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 of tested hydraulic cylinder is squeezed, achievees the purpose that feel relieved to tested hydraulic cylinder.When tested hydraulic cylinder
After centering, the valve on the disengaging oil pipe of hydraulic bag is closed, completes the centering to tested hydraulic cylinder at this time, hydraulic oil only passes through fixed
Disengaging oil pipe of the heart hydraulic cylinder close to intermediate plate side enters centering hydraulic cylinder, is tested hydraulic cylinder until centering hydraulic cylinder clamps,
Tested hydraulic cylinder is fixed in back plate and intermediate plate.In the whole process, it is complete simultaneously with centering step to be tested hydraulic cylinder clamping
At.
Using technical solution of the present invention, the clamping to tested hydraulic cylinder piston rod is realized by the expansion of hydraulic bag and is determined
Heart process, without installing the middle transition plate of different size on intermediate plate according to the specification and size that are tested hydraulic cylinder.
Further, be equipped in the internal point when being pressurized can to the centering metal block of tested hydraulic cylinder piston rod closing,
The quantity at least two of the centering metal block.When hydraulic bag expansion, hydraulic bag squeezes the elastic inner wall of intermediate plate and determines
Heart metal block, after centering metal block is squeezed, can piston rod closing to tested hydraulic cylinder, two pieces of centering metal blocks enclosings and
At cylinder it is smaller and smaller, thus further achieve the purpose that tested hydraulic cylinder clamp and feel relieved.
Further, the centering metal block is not less than the thickness of the intermediate plate in the length along vertical intermediate plate direction.
When hydraulic bag, which expands, squeezes intermediate plate inner wall and centering metal block, if centering metal block is along vertical intermediate plate direction
Length be less than the axle center length of intermediate plate, be tested hydraulic cylinder piston rod a part by intermediate plate inner wall and centering metal block
It squeezes, and another part only extruding by intermediate plate inner wall, and hydraulic bag can be intended into internal point without centering gold
The demi-inflation for belonging to block will cause the piston rod of the tested 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 block stretches out intermediate board ends is equipped with flanging, and the flanging is fastened on
On intermediate plate.Centering metal block can be fixed on intermediate plate by flanging to a certain degree, make centering metal block can only be along centre
The radial direction of plate is mobile.
Further, the intermediate plate inner wall is made of elastic rubber.Elastic rubber is the 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 the valve on the disengaging oil pipe of hydraulic bag, make the hydraulic oil oil return in hydraulic bag,
When centering metal block is no longer influenced by hydraulic bag extruding, under the action of centering metal block 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 squeezes intermediate plate inner wall and centering metal block in order to prevent, centering metal block 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.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram one of cylinder bench frame embodiment one of the present invention；
Fig. 2 is a kind of structural schematic diagram two of cylinder bench frame embodiment one of the present invention；
A kind of structural schematic diagram of one intermediate plate of cylinder bench frame embodiment of Fig. 3 present invention；
A kind of structural schematic diagram of two intermediate plate of cylinder bench frame embodiment of Fig. 4 present invention；
A kind of structural schematic diagram of three intermediate plate of cylinder bench frame embodiment of Fig. 5 present invention；
A kind of structural schematic diagram of cylinder bench frame example IV intermediate plate of Fig. 6 present invention.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail:
Appended drawing reference in Figure of description includes: chassis 1, foreboard 2, intermediate plate 3, back plate 4, centering hydraulic cylinder 5, is tested
Hydraulic cylinder 6, loading hydraulic cylinder 7, cavity 8, hydraulic bag 9, centering metal block 10, spring 11, valve 12, flanging 13.
Embodiment one
Referring 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 centering hydraulic cylinder 5, wherein foreboard 2 and back plate 4 are fixed by welding in 1 both ends of chassis, and intermediate plate 3 is mounted on foreboard 2 with after
It between plate 4, and is slidably connected on chassis 1, equipped with centering hydraulic cylinder 5 in back plate 4, the piston rod of centering hydraulic cylinder 5 passes through
Flanged joint is on intermediate plate 3, and tested hydraulic cylinder 6 is mounted in back plate 4 by flange, and loading hydraulic cylinder 7 is installed by flange
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, accommodating in cavity 8 is also the hydraulic bag 9 as made from rubber, in
Between 3 outer wall of plate be equipped with and lead to the disengaging oil pipe of hydraulic oil to hydraulic bag 9, the disengaging oil pipe of hydraulic bag 9 is equipped with valve 12.
It should be noted that the disengaging oil pipe of hydraulic bag 9 and disengaging of the hydraulic cylinder 5 close to 3 side of intermediate plate of feeling relieved are oily
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.It is hydraulic to feeling relieved first
Disengaging oil pipe of the cylinder 5 close to 3 side of intermediate plate leads to hydraulic oil, and centering hydraulic cylinder 5 is in backhaul state, due to hydraulic cylinder 5 of feeling relieved
Piston rod connect with intermediate plate 3, so intermediate plate 3 at this time on chassis 1 towards 4 direction of back plate slide, constantly clamping test solution
Cylinder pressure 6；Since the disengaging oil pipe of hydraulic bag 9 and disengaging oil pipe of the hydraulic cylinder 5 close to 3 side of intermediate plate of feeling relieved communicate, so to
Disengaging oil pipe of the hydraulic cylinder 5 close to 3 side of intermediate plate of feeling relieved leads to hydraulic oil, 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, deformation occurs, most
The piston rod of tested hydraulic cylinder 6 can be squeezed eventually, achieve the purpose that feel relieved to tested hydraulic cylinder 6.When tested hydraulic cylinder 6 is fixed
After the heart, the valve 12 on the disengaging oil pipe of hydraulic bag 9 is closed, just completes the centering to tested hydraulic cylinder 6 at this time, hydraulic oil is only
Disengaging oil pipe by centering hydraulic cylinder 5 close to 3 side of intermediate plate enters centering hydraulic cylinder 5, 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
Referring to Fig. 4, the difference between this embodiment and the first embodiment lies in: being equipped in the internal point of intermediate plate 3 can when being pressurized
To the centering metal block 10 of tested hydraulic cylinder piston rod closing, and to guarantee clamping and centering effect, centering metal block 10
Quantity is two, and centering metal block 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 squeezes the elastic inner wall and centering metal block 10 of intermediate plate 3, metal block of feeling relieved
After 10 are squeezed, piston rod closing of the meeting to tested hydraulic cylinder 6, thus cylinder made of two pieces of centering metal blocks 10 enclosings
It is smaller and smaller, to achieve the purpose that the piston rod Centering Clamping to tested hydraulic cylinder 6.
It is important to note that centering metal block 10 is equal to the thickness of intermediate plate 3 in the length along vertical 3 direction of intermediate plate
Degree is tested hydraulic cylinder 6 if centering metal block 10 is less than the axle center length of intermediate plate 3 in the length along vertical 3 direction of intermediate plate
Extruding of the piston rod a part by 3 inner wall of intermediate plate and centering metal block 10, and another part is only by 3 inner wall of intermediate plate
It squeezes, and hydraulic bag 9 can be intended to the demi-inflation for not having centering metal block 10 into internal point, will 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 deformation.
Embodiment three
Referring to Fig. 5, the difference between the present embodiment and the second embodiment lies in that: centering metal block 10 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 block 10 to a certain extent
It is fixed on intermediate plate 3, and move centering metal block 10 can only 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 block 10 are no longer influenced by the extruding of hydraulic bag 9, centering
Metal block 10 also under the action of spring 11, restores the state for not clamping tested 6 piston rod of hydraulic cylinder.It 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 squeezes in order to prevent
Between 3 inner wall of plate and centering metal block 10 when, centering metal block 10 still keep clamp 6 piston rod of test solution cylinder pressure state, it is unfavorable
It is tested for the property in the tested hydraulic cylinder 6 to other different size cylinder diameters.
Example IV
Referring to Fig. 6, the difference between the present embodiment and the second embodiment lies in that: the quantity of centering metal block 10 is three.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, 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 also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.
Claims (6)
1. a kind of cylinder bench frame, including chassis, foreboard, intermediate plate and back plate, the foreboard and back plate are fixed on described
Chassis both ends, the intermediate plate are slidably connected on the chassis, and centering hydraulic cylinder, the centering liquid are equipped in the back plate
The piston rod of cylinder pressure is connect with the intermediate plate, which is characterized 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
Oriented hydraulic bag leads to the disengaging oil pipe of hydraulic oil, and the disengaging oil pipe of the hydraulic bag is equipped with valve, the disengaging of the hydraulic bag
The disengaging oil pipe of oil pipe and centering hydraulic cylinder close to intermediate plate side communicates.
2. a kind of cylinder bench frame as described in claim 1, which is characterized in that be equipped with energy when being pressurized in the internal point
Enough centering metal blocks to tested hydraulic cylinder piston rod closing, the quantity at least two of the centering metal block.
3. a kind of cylinder bench frame as claimed in claim 2, which is characterized in that the centering metal block is in vertically
Between plate direction length be not less than the intermediate plate thickness.
4. a kind of cylinder bench frame as claimed in claim 3, which is characterized in that the centering metal block 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, which is characterized in that the intermediate plate inner wall is by elastic rubber system
At.
6. a kind of cylinder bench frame as claimed in claim 4, which is characterized 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 CN107906078A (en) | 2018-04-13 |
| CN107906078B true CN107906078B (en) | 2019-05-10 |
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ID=61843302
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711058467.1A Active CN107906078B (en) | 2017-11-01 | 2017-11-01 | A kind of cylinder bench frame |
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| Country | Link |
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| CN (1) | CN107906078B (en) |
Families Citing this family (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 |
| CN111514820B (en) * | 2020-04-28 | 2022-08-02 | 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 |
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| Publication number | Publication date |
|---|---|
| CN107906078A (en) | 2018-04-13 |
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