CN206862541U - It is a kind of can fictitious load impact force testing device - Google Patents
It is a kind of can fictitious load impact force testing device Download PDFInfo
- Publication number
- CN206862541U CN206862541U CN201720706564.6U CN201720706564U CN206862541U CN 206862541 U CN206862541 U CN 206862541U CN 201720706564 U CN201720706564 U CN 201720706564U CN 206862541 U CN206862541 U CN 206862541U
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- CN
- China
- Prior art keywords
- measurement chamber
- low pressure
- tension measurement
- absorbing cavity
- accumulator
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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.)
- Withdrawn - After Issue
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses it is a kind of can fictitious load impact force testing device.The utility model includes power supply, secondary meter and measuring cylinder.Measuring cylinder can totally be divided into two parts of high-tension measurement chamber and low pressure absorbing cavity, be full of hydraulic oil in the high-tension measurement chamber and low pressure absorbing cavity.Separated between high-tension measurement chamber and low pressure absorbing cavity by dividing plate, and adjustable damping unit is housed on dividing plate；High-tension measurement chamber connects with high frequency accumulator；Low pressure absorbing cavity includes the low pressure confined space being made up of rubber membrane and sealing drum, and inert gas is filled with confined space.The utility model can adjust the size of whole test device maximum detection impulsive force by adjusting the nitrogen pressure in high frequency accumulator nitrogen room.When impact force action is in pressed sheet, the fluid of high-tension measurement chamber enters low pressure absorbing cavity by damping hole, a large amount of impact energys is consumed, so as to avoid the bounce-back of impact energy.
Description
Technical field
The utility model belongs to impulsive force testing field, particularly a kind of adjustable impact force test device.
Background technology
Impulse machine is widely used in the multiple fields such as work, agricultural production, infrastructure construction, and it is rushed with producing impulsive force
It is final purpose to hit and rushed object.Impulsive force is tested significant to the Design and optimization of impulse machine and examination.
Traditional impact force test method includes end speed method, indicator diagram method, mechanical measurement method, radon survey method and answered
Reeb mensuration etc., although the method for measurement is varied, its measurement process is required to destroy original impact force generating apparatus,
Installing the sensor of complexity additional inside it could realize, it is difficult to batch testing.
Patent of invention CN103048075A discloses a kind of impact force testing device, can quickly measure impulse machine
Impulsive force.But the device can not absorb the impact energy of impulse machine, equivalent to one hydraulic spring grease cup, after once testing, it will
Most impact energy bounce-back repercussion machinery, it is different by impact load situation from reality.The impact energy being repelled acts on punching
Machinery is hit, measurement result can be caused inaccurate, and easily cause impulse machine failure.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of adjustable impact force test device, and the device can be surveyed
Different size of impulsive force is tried, and can absorb most impact energy.The device can be used for rushing for punch press, forging press and quartering hammer
Hit power test.
In order to solve the above technical problems, the utility model provides a kind of impact force testing device, the device includes power supply, two
Secondary instrument and measuring cylinder.
The measuring cylinder can totally be divided into two parts of high-tension measurement chamber and low pressure absorbing cavity, the high-tension measurement chamber and low
Hydraulic oil is full of in pressure absorbing cavity.
Separated by dividing plate between the high-tension measurement chamber and low pressure absorbing cavity, and filled on dividing plate equipped with adjustable damping
Put.
The high-tension measurement chamber upper end is provided with the first rubber membrane and piston, and piston is located above the first rubber membrane, described
Pressed sheet is provided with piston, pressed sheet directly contacts with impulse machine, receives impact.
The high-tension measurement chamber connects with high frequency accumulator.
Pressure sensor and displacement transducer are provided with the high-tension measurement chamber, for the fluid of testing high voltage measurement chamber
The displacement of pressure and piston.
The low pressure absorbing cavity includes the low pressure confined space being made up of the 3rd rubber and sealing drum, is filled with confined space
Inert gas.
The secondary meter receives sensor signal, and is shown on screen.
The power supply is that sensor and secondary meter are powered.
Furtherly, the high frequency accumulator includes accumulator upper shell, accumulator lower house and the second rubber.Described
The seal cavity formed between two rubbers and accumulator upper shell, form inert chamber.The accumulator upper shell center is equipped with
Charging valve, inert gas pressure can be adjusted by the valve.
It is of the present utility model can fictitious load impact force testing device, add high frequency accumulator, and pass through the 3rd rubber
Skin and sealing drum constitute low-voltage space.When impact force testing device works, by adjusting the nitrogen in high frequency accumulator nitrogen room
Atmospheric pressure, the size of whole test device maximum detection impulsive force can be adjusted.When impact force action is in pressed sheet, high pressure is surveyed
The fluid of amount chamber enters low pressure absorbing cavity by damping hole, a large amount of impact energys is consumed, so as to avoid the bounce-back of impact energy.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 gives a kind of impact force testing device of adjustable load, including measuring cylinder 8, and the top of measuring cylinder 8 is equipped with rubber
Epithelium I 17, upper press ring 3, piston 18 and pressed sheet 2, it is collectively forming a closed containing cavity with measuring cylinder.The closed containing cavity every
From under the buffer action of ring 9 and seal sleeve 16, the high-tension measurement chamber 14 on top and the low pressure absorbing cavity 10 of bottom are divided into；
Adjustable damping hole 13 equipped with adjustable damping size inside shading ring 9.The bottom of seal sleeve 16 is equipped with rubber membrane III 12, rubber
In the confined space that epithelium III 12 is formed with seal sleeve 16, low-pressure nitrogen is filled with.
The outside of measuring cylinder 8 is equipped with high frequency accumulator, and high frequency accumulator is by accumulator bottom end cover 5, rubber membrane II 7, accumulator
Upper end cover 6 and charging valve 11 form.
Hydraulic oil is each filled with high-tension measurement chamber 14 and low pressure absorbing cavity 10.
Displacement transducer 4 is used for measuring the displacement of piston 18.Pressure sensor 15 is used for measuring in high-tension measurement chamber 14
The pressure of fluid.
During actual use, the pressure of the regulation high frequency accumulator nitrogen of charging valve 11 room is first passed through to setting value, then adjust
Adjustable damping hole 13 is to suitable size.The piston 1 of impulse machine falls, and impacts the pressed sheet 2 of this test device, pressed sheet 2 to
Lower extrusion piston 18 and epithelium I 17 so that the pressure rise of high-tension measurement chamber 14.If impulsive force is more than setting value, high-tension measurement
When the pressure of chamber 14 is more than high frequency accumulator setting value, the fluid in high-tension measurement chamber 14, which can enter in high frequency accumulator, keeps in.Together
When, because pressure difference between high-tension measurement chamber 14 and low pressure absorbing cavity 10 be present, fluid can be low by hindering the entrance of adjustable damping hole 13
Side is pressed, when fluid is by adjustable damping hole 13, impact energy can be consumed.Because rubber membrane III 12 in low pressure absorbing cavity 10 with
The confined space that seal sleeve 16 is formed is sufficiently large, and its gas compressibility is strong, so the fluid entered will not cause low pressure to be inhaled
Being widely varied for the pressure of chamber 10 is received, the pressure differential of high and low pressure side is maintained.It is complete until entering the fluid in high frequency accumulator
Portion enters low-pressure side by adjustable damping hole 13.Now, impact energy caused by this Secondary Shocks is all exhausted.
The size of the recordable lower impulsive force of pressure sensor 15, and displacement transducer 4 then can record the movement of lower piston 18
The displacement of displacement, i.e. impulse machine under impact load effect.
Claims (2)
1. it is a kind of can fictitious load impact force testing device, including power supply, secondary meter and measuring cylinder, it is characterised in that：
The measuring cylinder can totally be divided into two parts of high-tension measurement chamber and low pressure absorbing cavity, and the high-tension measurement chamber and low pressure are inhaled
Receive intracavitary and be full of hydraulic oil；
Separated between the high-tension measurement chamber and low pressure absorbing cavity by dividing plate, and adjustable damping unit is housed on dividing plate；
The high-tension measurement chamber upper end is provided with the first rubber membrane and piston, and piston is located above the first rubber membrane, the piston
On be provided with pressed sheet, pressed sheet directly contacts with impulse machine, receives impact；
The high-tension measurement chamber connects with high frequency accumulator；
Pressure sensor and displacement transducer are provided with the high-tension measurement chamber, for the oil liquid pressure of testing high voltage measurement chamber
With the displacement of piston；
The low pressure absorbing cavity includes the low pressure confined space being made up of the 3rd rubber membrane and sealing drum, is filled with confined space lazy
Property gas；
The secondary meter receives sensor signal, and is shown on screen；
The power supply is that sensor and secondary meter are powered.
2. it is according to claim 1 it is a kind of can fictitious load impact force testing device, it is characterised in that：
The high frequency accumulator includes accumulator upper shell, accumulator lower house and the second rubber membrane；Second rubber membrane with
The seal cavity formed between accumulator upper shell, form inert chamber；The accumulator upper shell center is equipped with charging valve,
Inert gas pressure can be adjusted by the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706564.6U CN206862541U (en) | 2017-06-18 | 2017-06-18 | It is a kind of can fictitious load impact force testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706564.6U CN206862541U (en) | 2017-06-18 | 2017-06-18 | It is a kind of can fictitious load impact force testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206862541U true CN206862541U (en) | 2018-01-09 |
Family
ID=60826594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720706564.6U Withdrawn - After Issue CN206862541U (en) | 2017-06-18 | 2017-06-18 | It is a kind of can fictitious load impact force testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206862541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082018A (en) * | 2019-05-09 | 2019-08-02 | 中国人民解放军国防科技大学 | Shock wave energy passive measuring sensor based on thin-walled tube expansion energy absorption |
-
2017
- 2017-06-18 CN CN201720706564.6U patent/CN206862541U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082018A (en) * | 2019-05-09 | 2019-08-02 | 中国人民解放军国防科技大学 | Shock wave energy passive measuring sensor based on thin-walled tube expansion energy absorption |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180109 Effective date of abandoning: 20200519 |
|
| AV01 | Patent right actively abandoned |