CN109578382A - A kind of hydraulic loading device - Google Patents
A kind of hydraulic loading device Download PDFInfo
- Publication number
- CN109578382A CN109578382A CN201811340037.3A CN201811340037A CN109578382A CN 109578382 A CN109578382 A CN 109578382A CN 201811340037 A CN201811340037 A CN 201811340037A CN 109578382 A CN109578382 A CN 109578382A
- Authority
- CN
- China
- Prior art keywords
- piston
- pivoted housing
- cylinder body
- cylinder
- piston pivoted
- Prior art date
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 7
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012530 fluid Substances 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
- F15B15/18—Combined units comprising both motor and pump
Abstract
The present invention relates to a kind of hydraulic loading devices, including load cylinder and to load cylinder pump oil hydraulic pump, loading cylinder includes cylinder body and piston, hydraulic oil pressure force detection sensor is provided on the cylinder body, the load cylinder further includes rolling assembling in the piston pivoted housing on the cylinder body, piston pivoted housing and cylinder body sealing cooperate, and the piston seal is threaded onto the inner hole of the piston pivoted housing, and piston is rotatably assorted with piston pivoted housing.Hydraulic pump pump oil into the cylinder body of load cylinder, the piston for loading cylinder stretches out, until contact is on component to be loaded, during load cylinder treats loading component load, keep piston pivoted housing opposing pistons and cylinder body rotation, stiction is not present between piston and piston pivoted housing and piston pivoted housing and cylinder body, therefore hydraulic oil pressure force detection sensor indicating value fluctuation problem caused by avoiding because of static friction, the rotation of piston pivoted housing counteract influence of the static friction factor to hydraulic oil pressure force detection sensor indicating value.
Description
Technical field
The present invention relates to the hydraulic loading devices in hydraulic power field.
Background technique
Load cylinder is a kind of common hydraulic loading device comprising load cylinder and the hydraulic pump to load cylinder pump oil add
Carry that cylinder includes cylinder body and guiding movement is assemblied in piston on cylinder body, when being loaded using load cylinder, such as in compression shear machine
Above in use, piston stretches out contact on component to be loaded, piston and cylinder body are opposing stationary at this time, for the output to load cylinder
Loading force is detected, and pressure sensor is provided on cylinder body.
Existing this hydraulic loading device has problems in that: after piston top is against on component to be loaded, piston with
Cylinder body is opposing stationary, and the friction law between piston and cylinder body is static friction relationship, and the characteristic of stiction is: stiction is
The power of one variation, in the loading process of piston, stiction can change always, therefore the indicating value of pressure sensor can wave always
It is dynamic, lead to not the output loading force for accurately measuring load cylinder.
Summary of the invention
The purpose of the present invention is to provide a kind of hydraulic loading devices, to solve in the prior art between piston and cylinder body
Static friction acts on meeting so that the problem of pressure sensor indicating value fluctuates.
In order to solve the above technical problems, technical scheme is as follows:
A kind of hydraulic loading device, including load cylinder and to the hydraulic pump of load cylinder pump oil, loading cylinder includes cylinder body and piston,
Hydraulic oil pressure force detection sensor is provided on the cylinder body, the load cylinder further includes rolling assembling in the work on the cylinder body
Pivoted housing is filled in, piston pivoted housing and cylinder body sealing cooperate, and the piston seal is threaded onto the inner hole of the piston pivoted housing, piston
It is rotatably assorted with piston pivoted housing.
Being cooperated between piston and piston pivoted housing by the sealing of the first sealing ring, pass through between piston pivoted housing and the cylinder body
The sealing cooperation of second sealing ring.
Hydraulic pressure calibrating installation further include with the piston pivoted housing be sequentially connected with drive piston pivoted housing opposing pistons,
The piston pivoted housing driving mechanism of cylinder body rotation.
The limited support being connected on the upside of the piston pivoted housing on the cylinder body, the limited support is in the piston
Axial force detection sensor is provided between pivoted housing.
The upper end of piston pivoted housing sets one circle gear edge of left and right, and axial force detection sensor and the gear are provided with corner connection between
Touch ball bearing.
The invention has the benefit that hydraulic pump is to adding using this hydraulic loading device when treating loading component and loading
Pump oil in the cylinder body of cylinder is carried, the piston for loading cylinder stretches out, until contact treats loading component on component to be loaded, in load cylinder
During load, keep piston pivoted housing opposing pistons and cylinder body rotation, piston and piston pivoted housing and piston pivoted housing and cylinder body it
Between stiction is not present, therefore hydraulic oil pressure force detection sensor indicating value fluctuation problem caused by avoiding because of static friction is living
The rotation of plug pivoted housing counteracts influence of the static friction factor to hydraulic oil pressure force detection sensor indicating value.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the present of invention；
Fig. 2 is the structural schematic diagram of piston pivoted housing in Fig. 1.
Specific embodiment
The embodiment of the present invention is as shown in Figure 1 and 2: including load cylinder and to the hydraulic pump 21 of load cylinder pump oil, loading cylinder packet
Cylinder body 9 and piston 1 are included, the hydraulic oil pressure force detection sensor 14 for detecting hydraulic fluid pressure in cylinder body is provided on cylinder body 9,
Load cylinder further includes rolling assembling in the piston pivoted housing 3 on cylinder body, and piston pivoted housing 3 is matched by the second sealing ring 8 and cylinder body sealing
It closes, piston 1 is set in the inner hole of piston pivoted housing 2, living by the sealing cooperation of the first sealing ring 7 between piston pivoted housing and piston
Filling in pivoted housing can be rotated with opposing pistons and cylinder body.In the present embodiment, the inner hole wall of piston pivoted housing offers piston pivoted housing sealing ring
Mounting groove, the first sealing ring 7 are installed in piston pivoted housing sealing ring mounting groove；The installation of cylinder body sealing ring is offered on inboard wall of cylinder block
Slot, the second sealing ring 8 are installed in the cylinder body sealing ring mounting groove.
Piston pivoted housing upper end turn up have it is outer turn edge 3, the limited support 23 for being located at the upside that turns edge outside, limit are connected on cylinder body
There are three supports, and for three limited supports along the circumferentially-spaced arrangement of cylinder body, each limited support includes horizontal edge and vertical edge, horizontal edge,
Vertical edge constitute " 7 " character form structure, the horizontal edge of limited support and outside turn edge between be provided with axial force detection sensor 5, turn edge outside
Outer rim be provided with circle gear along 4, axial force detection sensor 5 and gear are along 4 and turn edge be provided with angular contact ball bearing between 3 outside
11, the axially and radially constraint to piston pivoted housing may be implemented in angular contact ball bearing, after piston top arrives on component to be loaded,
The numerical value of axial force detection sensor is stable, it was demonstrated that has been overcome caused by stiction is unstable in the prior art
Calibrate fluctuation problem.Hydraulic pressure calibrating installation further includes being sequentially connected with piston pivoted housing to drive piston pivoted housing opposite living
The piston pivoted housing driving mechanism that plug, cylinder body rotate, piston pivoted housing driving mechanism includes the driving motor 13 that motor shaft is vertically arranged,
Pinion gear 12 is provided on the motor shaft of driving motor, turning up for piston pivoted housing is circumferentially provided with and pinion gear engaged transmission
Gear wheel, gear wheel, pinion gear tooth be straight-tooth.The hydraulic oil container 22 that figure middle term expression is connected with hydraulic pump.
When treating loading component using this hydraulic loading device such as the load of compression shear machine, hydraulic pump pump oil into cylinder body,
The piston for loading cylinder stretches out, until contact, on component to be loaded, driving motor drives piston pivoted housing opposing pistons, cylinder body with every
The rotational speed of 10 ~ 20 turns of minute, the rotation of piston pivoted housing, so that there is no static friction to act between piston pivoted housing and piston,
Therefore it avoids because stiction is unstable, easy fluctuate influences to hydraulic oil pressure force detection sensor bring.
In other embodiments of the invention: angular contact ball bearing can not also be set, at this time limited support and piston pivoted housing
Between precision can be cooperated to guarantee the rotation relation between the two by contact surface；Driving in piston pivoted housing driving mechanism
It can also can not also set, be supported in piston top by V belt translation, certain piston pivoted housing driving mechanism between motor and piston pivoted housing
At the beginning of component to be loaded, rotation torque can be applied to piston pivoted housing manually, then piston pivoted housing is voluntarily rotated by inertia；
Second sealing ring, the first sealing ring can not also be set, and the sealing between piston and piston pivoted housing, piston pivoted housing and cylinder body can at this time
To be realized by cooperation precision.
Claims (5)
1. a kind of hydraulic loading device, including load cylinder and to the hydraulic pump of load cylinder pump oil, load cylinder includes cylinder body and work
Plug is provided with hydraulic oil pressure force detection sensor on the cylinder body, it is characterised in that: the load cylinder further include rolling assembling in
Piston pivoted housing on the cylinder body, piston pivoted housing and cylinder body sealing cooperate, and the piston seal is threaded onto the piston and turns
In the inner hole of set, piston is rotatably assorted with piston pivoted housing.
2. hydraulic loading device according to claim 1, it is characterised in that: pass through first between piston and piston pivoted housing
Sealing ring sealing cooperation passes through the sealing cooperation of the second sealing ring between piston pivoted housing and the cylinder body.
3. hydraulic loading device according to claim 1, it is characterised in that: hydraulic pressure calibrating installation further includes and institute
The transmission connection of piston pivoted housing is stated to drive the piston pivoted housing driving mechanism of piston pivoted housing opposing pistons, cylinder body rotation.
4. hydraulic loading device described in any one according to claim 1 ~ 3, it is characterised in that: be connected with position on the cylinder body
Limited support on the upside of the piston pivoted housing, the limited support are provided with axial force detection between the piston pivoted housing and pass
Sensor.
5. hydraulic loading device according to claim 4, it is characterised in that: the upper end of piston pivoted housing sets one circle gear of left and right
Edge, axial force detection sensor and the gear are provided with angular contact ball bearing between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340037.3A CN109578382B (en) | 2018-11-12 | 2018-11-12 | Hydraulic loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340037.3A CN109578382B (en) | 2018-11-12 | 2018-11-12 | Hydraulic loading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578382A true CN109578382A (en) | 2019-04-05 |
| CN109578382B CN109578382B (en) | 2024-04-05 |
Family
ID=65922284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811340037.3A Active CN109578382B (en) | 2018-11-12 | 2018-11-12 | Hydraulic loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109578382B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781768A (en) * | 2020-01-08 | 2021-05-11 | 河南牛帕力学工程研究院 | Force sensor and hydraulic bearing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0075847A2 (en) * | 1981-09-25 | 1983-04-06 | A. M. Erichsen GmbH | Hydraulic device for generating a normalised force |
| DE10018493C1 (en) * | 2000-04-14 | 2001-10-31 | Axel Poehls | Dynamic calibration device for piezoelectric pressure sensor uses signal from reference pressure sensor for regulating pressure in fluid-filled pressure chamber used for calibration |
| CN102175387A (en) * | 2011-01-21 | 2011-09-07 | 吉林大学 | Rolling friction cylinder hydraulic type force standard machine |
| DE102015225712A1 (en) * | 2015-12-17 | 2017-06-22 | Robert Bosch Gmbh | Escaping assembly of a ball screw and a piston-cylinder unit for a slip-controlled power brake |
| CN109374202A (en) * | 2018-11-12 | 2019-02-22 | 尚廷东 | A kind of fluid pressure type power calibrating installation |
| CN208872462U (en) * | 2018-11-12 | 2019-05-17 | 河南交院工程技术有限公司 | A kind of fluid pressure type power calibrating installation and hydraulic loading device |
-
2018
- 2018-11-12 CN CN201811340037.3A patent/CN109578382B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0075847A2 (en) * | 1981-09-25 | 1983-04-06 | A. M. Erichsen GmbH | Hydraulic device for generating a normalised force |
| DE10018493C1 (en) * | 2000-04-14 | 2001-10-31 | Axel Poehls | Dynamic calibration device for piezoelectric pressure sensor uses signal from reference pressure sensor for regulating pressure in fluid-filled pressure chamber used for calibration |
| CN102175387A (en) * | 2011-01-21 | 2011-09-07 | 吉林大学 | Rolling friction cylinder hydraulic type force standard machine |
| DE102015225712A1 (en) * | 2015-12-17 | 2017-06-22 | Robert Bosch Gmbh | Escaping assembly of a ball screw and a piston-cylinder unit for a slip-controlled power brake |
| CN109374202A (en) * | 2018-11-12 | 2019-02-22 | 尚廷东 | A kind of fluid pressure type power calibrating installation |
| CN208872462U (en) * | 2018-11-12 | 2019-05-17 | 河南交院工程技术有限公司 | A kind of fluid pressure type power calibrating installation and hydraulic loading device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781768A (en) * | 2020-01-08 | 2021-05-11 | 河南牛帕力学工程研究院 | Force sensor and hydraulic bearing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109578382B (en) | 2024-04-05 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: Zhong Guo Address after: 450000 No. 165 Nautical Middle Road, Erqi District, Zhengzhou City, Henan Province Applicant after: Henan Jiaoyuan Engineering Technology Group Co.,Ltd. Applicant after: Shang Tingdong Address before: 450000 No. 165 Nautical Middle Road, Erqi District, Zhengzhou City, Henan Province Applicant before: HENAN JIAOYUAN ENGINEERING TECHNOLOGY Co.,Ltd. Country or region before: Zhong Guo Applicant before: Shang Tingdong |
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| GR01 | Patent grant |