CN207570774U - Engineering machinery check valve pressure test device - Google Patents
Engineering machinery check valve pressure test device Download PDFInfo
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- CN207570774U CN207570774U CN201721645075.0U CN201721645075U CN207570774U CN 207570774 U CN207570774 U CN 207570774U CN 201721645075 U CN201721645075 U CN 201721645075U CN 207570774 U CN207570774 U CN 207570774U
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- Prior art keywords
- pressure
- check valve
- flowmeter
- oil inlet
- flow control
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of engineering machinery check valve pressure test devices, belong to technical field of engineering machinery.It solves the defects of cannot simulating the Opening pressure of check valve under impact existing for traditional check valve pressure test device in the prior art.Its agent structure includes oil inlet main line and triplate line, one end of oil inlet main line is connect with triplate line, the oil inlet main line is equipped with first flowmeter and first pressure measuring device, and the triplate line is equipped with check valve, first flow control valve and third device for pressure measurement；The oil inlet of the check valve is connect with first flow control valve, and third device for pressure measurement is mounted on the oil outlet of check valve；One end of the first flowmeter is connect with first flow control valve, and first pressure measuring device is mounted on the other end pipeline of first flowmeter.The utility model is mainly used in engineering machinery.
Description
Technical field：
The utility model belongs to technical field of engineering machinery, specifically, more particularly to a kind of engineering machinery check valve
Pressure test device.
Background technology：
At present, increase suddenly to solve hydraulic oil radiator pressure on engineering machinery radiator, pacify on a heat sink
Check valve is filled, and the pressure of check valve needs to meet design performance and requirement.
It is traditional to check valve method for testing pressure, i.e., pressue device is connected to check valve oil inlet end, this device can
It tests out the Opening pressure under static pressure, but cannot simulate under impact, i.e., under hydraulic oil big flow and pressure working condition,
The Opening pressure of check valve is tested, can not meet the use state of loading machine, it is impossible to which accurate simulation operating mode meets to use and want
It asks.
Invention content：
In order to solve that existing for traditional check valve pressure test device in the prior art check valve under impact cannot be simulated
Opening pressure the shortcomings that, the utility model provides a kind of engineering machinery for being different from prior art check valve pressure test
Device, it is simple in structure, easy to install and use；The Opening pressure of check valve under impact can be simulated.
To achieve these goals, the utility model is realized using following technical scheme：
A kind of engineering machinery check valve pressure test device, including oil inlet main line and triplate line, oil inlet main line
One end connect with triplate line, the oil inlet main line be equipped with first flowmeter and first pressure measuring device, described three
Siphunculus road is equipped with check valve, first flow control valve and third device for pressure measurement；The oil inlet of the check valve and first
Flow control valve connects, and third device for pressure measurement is mounted on the oil outlet of check valve；One end of the first flowmeter with
First flow control valve connects, and first pressure measuring device is mounted on the other end pipeline of first flowmeter.
Further, second flowmeter, second flow control valve and second pressure are additionally provided on the oil inlet main line to survey
Device is measured, one end of the second flow control valve is connect with second flowmeter, and the other end is connect with first flowmeter, the second pressure
Force measuring device is mounted in second flowmeter and the intermediate duct of second flow control valve.
Further, the first pressure measuring device, Second device for pressure measurement and third device for pressure measurement are pressure
Power table or pressure sensor.
Compared with prior art, the beneficial effects of the utility model are：
1st, it is simple in structure, it is easy to install and use；
2nd, using first flow control valve and second flow control valve amount of restriction, simulation hydraulic oil dissipates；
3rd, the difference of first flowmeter and second flowmeter is by the flow of check valve, can be reduced using flowmeter at two
Error；
4th, can Fast simulation check valve under impact Opening pressure.
Description of the drawings：
Fig. 1 is the structure diagram of the utility model.
In figure：1st, check valve；2nd, first flow control valve；3rd, fuel tank；4th, second flowmeter；5th, second flow control valve；
6th, Second device for pressure measurement；7th, first flowmeter；8th, the scattered oil inlet of oil；9th, first pressure measuring device；10th, oil inlet is responsible for
Road；11st, triplate line；12nd, third device for pressure measurement.
Specific embodiment：
Below by specific embodiment and with reference to attached drawing, the utility model is described in further detail.
Embodiment 1：
As shown in Figure 1, a kind of engineering machinery check valve pressure test device, including oil inlet main line 10 and triplate line
11, one end of oil inlet main line 10 is connect with triplate line 11, and the oil inlet main line 10 is equipped with first flowmeter 7 and first
Device for pressure measurement 9, the triplate line 11 are equipped with check valve 1, first flow control valve 2 and third device for pressure measurement
12；The oil inlet of the check valve 1 is connect with first flow control valve 2, and third device for pressure measurement 12 is mounted on check valve 1
On oil outlet；One end of the first flowmeter 7 is connect with first flow control valve 2, and first pressure measuring device 9 is mounted on the
On the other end pipeline of flow meters 7.
Embodiment 2：
A kind of engineering machinery check valve pressure test device is additionally provided with second flowmeter 4, second on oil inlet main line 10
Flow control valve 5 and Second device for pressure measurement 6, one end of the second flow control valve 5 are connect with second flowmeter 4, separately
One end is connect with first flowmeter 7, and Second device for pressure measurement 6 is mounted in second flowmeter 4 and second flow control valve 5
Between on pipeline；The first pressure measuring device 9, Second device for pressure measurement 6 and third device for pressure measurement 12 are pressure gauge
Or pressure sensor.Other parts are same as Example 1.
When the utility model is installed and used：By 1 be installed on a heat sink of check valve, a side joint oil of oil inlet main line 10 dissipates
Oil inlet 8, the both sides of triplate line 11 are respectively connected in fuel tank 3.
First flow control valve 2 and the control of second flow control valve 5 enter the flow of check valve 1；Second pressure measures dress
Put the pressure of the 6 monitoring and measuring branches.
The unlatching of first flow control valve 2 and second flow control valve 5 is adjusted, simulation hydraulic oil is dissipated, it can be achieved that entire
The pressure test of device, this device is easy to use, can quickly test out pressure of the check valve 1 under certain flow.
The Opening pressure size that hydraulic oil dissipates middle check valve 1 is to influence the principal element whether check valve 1 is opened, therefore this
Utility model includes two part of detecting, and first is pressure test part, and second is flow rate test part, thus can calculate list
It is opening 30 °, 60 ° to valve 1 and is fully opening the flow and the pressure loss under three kinds of states.
Calculation by the flow of check valve 1 is：First flowmeter 7- second flowmeters 4.
Calculation by the pressure loss of check valve 1 is：First pressure measuring device 9- third device for pressure measurement
12。
Claims (3)
1. a kind of engineering machinery check valve pressure test device, including oil inlet main line (10) and triplate line (11), oil inlet
One end of main line (10) is connect with triplate line (11), it is characterised in that：The oil inlet main line (10) is equipped with first-class
Gauge (7) and first pressure measuring device (9), the triplate line (11) are equipped with check valve (1), first flow control valve
(2) and third device for pressure measurement (12)；The oil inlet of the check valve (1) is connect with first flow control valve (2), third pressure
Force measuring device (12) is on the oil outlet of check valve (1)；One end of the first flowmeter (7) is controlled with first flow
Valve (2) connects, and first pressure measuring device (9) is on the other end pipeline of first flowmeter (7).
2. engineering machinery according to claim 1 check valve pressure test device, it is characterised in that：The oil inlet supervisor
Second flowmeter (4), second flow control valve (5) and Second device for pressure measurement (6), the second are additionally provided on road (10)
One end of control valve (5) is connect with second flowmeter (4), and the other end is connect with first flowmeter (7), and second pressure measures dress
(6) are put in second flowmeter (4) and the intermediate duct of second flow control valve (5).
3. engineering machinery according to claim 2 check valve pressure test device, it is characterised in that：The first pressure
Measuring device (9), Second device for pressure measurement (6) and third device for pressure measurement (12) are pressure gauge or pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721645075.0U CN207570774U (en) | 2017-11-30 | 2017-11-30 | Engineering machinery check valve pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721645075.0U CN207570774U (en) | 2017-11-30 | 2017-11-30 | Engineering machinery check valve pressure test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207570774U true CN207570774U (en) | 2018-07-03 |
Family
ID=62689477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721645075.0U Active CN207570774U (en) | 2017-11-30 | 2017-11-30 | Engineering machinery check valve pressure test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207570774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630589A (en) * | 2019-10-15 | 2019-12-31 | 宁波海宏液压有限公司 | Automatic test system and method for hydraulic check valve |
| CN112182811A (en) * | 2020-11-03 | 2021-01-05 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Method and device for evaluating operating pressure loss value of hydraulic operating mechanism, electronic equipment and storage medium |
-
2017
- 2017-11-30 CN CN201721645075.0U patent/CN207570774U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630589A (en) * | 2019-10-15 | 2019-12-31 | 宁波海宏液压有限公司 | Automatic test system and method for hydraulic check valve |
| CN112182811A (en) * | 2020-11-03 | 2021-01-05 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Method and device for evaluating operating pressure loss value of hydraulic operating mechanism, electronic equipment and storage medium |
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