CN208534905U - A kind of device for oil cylinder fault detection - Google Patents
A kind of device for oil cylinder fault detection Download PDFInfo
- Publication number
- CN208534905U CN208534905U CN201820518796.3U CN201820518796U CN208534905U CN 208534905 U CN208534905 U CN 208534905U CN 201820518796 U CN201820518796 U CN 201820518796U CN 208534905 U CN208534905 U CN 208534905U
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- China
- Prior art keywords
- hydraulic
- oil
- hydraulic cylinder
- reversal valve
- cylinder
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Abstract
A kind of device for oil cylinder fault detection, including hydraulic oil container, hydraulic pump, motor, oil circuit pressure table, flowmeter, reversal valve, rodless cavity pressure gauge, rod chamber pressure gauge and hydraulic cylinder to be detected, the utility model provides hydraulic flow by hydraulic pump, hydraulic oil is squeezed into hydraulic cylinder after reversal valve, during hydraulic cylinder stretches out or retracts, by checking whether gage pressure value has fluctuation, it may determine that whether cylinder chamber is pulled, the pressure maintaining period after hydraulic cylinder stretches out or be retracted into terminal, by checking flowmeter flow value, it can judge whether hydraulic cylinder is interior to let out, in judging hydraulic cylinder failure process, fast and easy, and it is very intuitive, hydraulic cylinder fault-free is avoided to dismantle, it is time saving and energy saving in hydraulic cylinder maintenance process.
Description
Technical field
The utility model belongs to signal detecting technical field, and in particular to a kind of device for oil cylinder fault detection.
Background technique
With the development of science and technology, industry, building or even civil field all widely use hydraulic device, including modern smelting
Golden machinery has also all largely used hydraulic transmission equipment.And various oil cylinder specifications and use occasion in different hydraulic transmission equipments
It is all different, wherein the quantity of single hydraulic cylinder is just very big.Since various factors influences, the service life length of hydraulic cylinder is not
One, after a period of use, such-and-such different faults can all occur in hydraulic system, once there is hydraulic event in hydraulic system
Barrier, being usually difficult to accurate judgement failure cause for the moment is at hydraulic cylinder or the other positions of system.Presently, failure cause
Judgement and determine mainly with the experience of staff, or the pressure oil for being combined system itself first carries out just hydraulic cylinder
Step judgement i.e.: disassembly two chamber of oil cylinder original oil pipe or together with cylinder body together dismantle, then to disassembly oil pipe oil cylinder chamber into
Row pressurization fuel feeding, observes the oil spout state of another chamber, with this come judge tested oil cylinder whether leakage failure, thus to the system failure
Carry out positioning searching.Obviously, these traditional detection methods are unable to that the intracorporal pressure of quantitative display chamber, there are no from comparing two chambers
Pressure difference, therefore breakdown judge inaccuracy is frequently resulted in, lead to whole Measuring error inefficiency, can also cause largely to detect
It is lost and is wasted with oil liquid, increase the unnecessary consumption of oil liquid and the serious pollution of environment.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of device for oil cylinder fault detection.
The utility model is achieved by the following technical programs.
A kind of device for oil cylinder fault detection provided by the utility model, including it is hydraulic oil container, hydraulic pump, electronic
Machine, oil circuit pressure table, flowmeter, reversal valve, rodless cavity pressure gauge, rod chamber pressure gauge and hydraulic cylinder to be detected, wherein
The output end of motor is connect with hydraulic pump, and hydraulic pump inlet end is connected to hydraulic oil container, and outlet end is connected to reversal valve；Commutation
Valve is three position four-way directional control valve, and remaining three ports are respectively connected to the input terminal of flowmeter, hydraulic cylinder to be detected
In the rod chamber of rodless cavity and hydraulic cylinder to be detected；The output end of flowmeter accesses hydraulic oil container；Rodless cavity pressure gauge connects
Enter in the oil circuit between hydraulic cylinder and reversal valve to be detected, rod chamber pressure gauge access the rod chamber of hydraulic cylinder to be detected with
In oil circuit between reversal valve；Oil circuit pressure table accesses in the oil circuit between hydraulic pump and reversal valve.
Further, between the reversal valve and the rodless cavity of hydraulic cylinder to be detected and hydraulic cylinder to be detected has
A throttle valve is equipped between rod cavity.
Further, a filter is additionally provided between the hydraulic oil container and hydraulic pump.
It further, further include an overflow valve, in the oil circuit between the overflow valve access hydraulic pump and reversal valve.
It further, further include a check valve, the check valve is set in the oil circuit between reversal valve and hydraulic pump.
Further, be additionally provided with a switch valve before the oil circuit pressure table, accessed after switch valve reversal valve with
In oil circuit between hydraulic pump.
Further, the motor is V alternating current generator.
Further, the detection range of the oil circuit pressure table is greater than the inspection of rodless cavity pressure gauge and rod chamber pressure gauge
Survey range.
Further, the rodless cavity pressure gauge is equal with the detection range of rod chamber pressure gauge.
The utility model has the beneficial effects that: the utility model provides hydraulic flow by hydraulic pump, after reversal valve
Hydraulic oil is squeezed into hydraulic cylinder, it, can by checking whether gage pressure value has fluctuation during hydraulic cylinder stretches out or retracts
To judge whether cylinder chamber is pulled, the pressure maintaining period after hydraulic cylinder stretches out or be retracted into terminal, by checking flowmeter
Flow value can judge whether hydraulic cylinder is interior and let out, in judging hydraulic cylinder failure process, fast and easy, and it is very intuitive, it keeps away
Exempt from the disassembly of hydraulic cylinder fault-free, it is time saving and energy saving in hydraulic cylinder maintenance process.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 1- hydraulic oil container, 2- filter, 3- hydraulic pump, 4- motor, 5- overflow valve, 6- switch valve, 7- oil circuit
Pressure gauge, 8- check valve, 9- flowmeter, 10- reversal valve, 11- throttle valve, 12- rodless cavity pressure gauge, 13- rod chamber pressure gauge,
14- hydraulic cylinder to be detected.
Specific embodiment
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
As shown in Figure 1, a kind of device for oil cylinder fault detection provided by the utility model, including hydraulic oil container 1, liquid
Press pump 3, motor 4, oil circuit pressure table 7, flowmeter 9, reversal valve 10, rodless cavity pressure gauge 12, rod chamber pressure gauge 13 and
Hydraulic cylinder 14 to be detected, wherein the output end of motor 4 is connect with hydraulic pump 3, and 3 arrival end of hydraulic pump is connected to hydraulic oil
Case 1, outlet end are connected to reversal valve 10；Reversal valve 10 is three position four-way directional control valve, and remaining three ports are respectively connected to
In the rod chamber of the input terminal of flowmeter 9, the rodless cavity of hydraulic cylinder to be detected 14 and hydraulic cylinder to be detected 14；Flowmeter
9 output end accesses hydraulic oil container 1；Rodless cavity pressure gauge 12 accesses the oil circuit between hydraulic cylinder 14 and reversal valve 10 to be detected
In, rod chamber pressure gauge 13 accesses in the oil circuit between the rod chamber and reversal valve 10 of hydraulic cylinder 14 to be detected；Oil circuit pressure
Table 7 accesses in the oil circuit between hydraulic pump 3 and reversal valve 10.
Further, between the reversal valve 10 and the rodless cavity of hydraulic cylinder to be detected 14 and hydraulic cylinder to be detected
A throttle valve 11 is equipped between 14 rod chamber.
Further, a filter 2 is additionally provided between the hydraulic oil container 1 and hydraulic pump.
It further, further include an overflow valve 5, the overflow valve 5 accesses the oil circuit between hydraulic pump 3 and reversal valve 10
In.
It further, further include a check valve 8, the check valve 8 is set between reversal valve 10 and hydraulic pump 3
In oil circuit.
Further, it is additionally provided with a switch valve 6 before the oil circuit pressure table 7, accesses reversal valve after switch valve 6
In oil circuit between 10 and hydraulic pump 3.
Further, the motor 4 is 220V alternating current generator.
Further, the detection range of the oil circuit pressure table 7 is greater than rodless cavity pressure gauge 12 and rod chamber pressure gauge
13 detection range.
Further, the rodless cavity pressure gauge 12 is equal with the detection range of rod chamber pressure gauge 13.
Its course of work is as follows:
Oil inlet: after motor 4 starts, hydraulic pump 3 is sucked hydraulic oil from hydraulic oil container 1 by filter 2, and send to
Reversal valve 10, the right position of reversal valve 10 obtain electric, and hydraulic oil by one-way throttle valve enters 14 rod chamber of hydraulic cylinder by reversal valve；
Oil return: 14 rod chamber of hydraulic cylinder retracts process, after hydraulic oil enters the right position of reversal valve 10 by one-way throttle valve 12,
Hydraulic oil container 1 is returned to after flowmeter 9.
Breakdown judge:
Hydraulic stem retracts process: after oil circuit pressure table 7, rodless cavity pressure gauge 12, rod chamber pressure gauge 13 reach certain value
It keeps pressure to be basically unchanged, illustrates that 14 inner wall of hydraulic cylinder and piston are not pulled, such as oil circuit pressure table 7 and rod chamber pressure gauge 13
Fluctuation it is larger, the inner wall and piston of hydraulic cylinder 14 to be detected are pulled, and are needed repairing.
Hydraulic stem is retracted into terminal pressure maintaining period: it checks flowmeter 9, such as without flow indication, illustrates that hydraulic cylinder 14 is let out without interior,
Have a flow indication, hydraulic cylinder 14 to be detected have in let out, need repairing.
Claims (9)
1. a kind of device for oil cylinder fault detection, it is characterised in that: including hydraulic oil container (1), hydraulic pump (3), motor
(4), oil circuit pressure table (7), flowmeter (9), reversal valve (10), rodless cavity pressure gauge (12), rod chamber pressure gauge (13) and
Hydraulic cylinder (14) to be detected, wherein the output end of motor (4) is connect with hydraulic pump (3), the connection of hydraulic pump (3) arrival end
To hydraulic oil container (1), outlet end is connected to reversal valve (10)；Reversal valve (10) be three position four-way directional control valve, remaining three
Port is respectively connected to the rodless cavity and hydraulic cylinder to be detected of the input terminal of flowmeter (9), hydraulic cylinder to be detected (14)
(14) in rod chamber；The output end of flowmeter (9) accesses hydraulic oil container (1)；Rodless cavity pressure gauge (12) accesses liquid to be detected
In oil circuit between compressing cylinder (14) and reversal valve (10), rod chamber pressure gauge (13) accesses having for hydraulic cylinder (14) to be detected
In oil circuit between rod cavity and reversal valve (10)；Oil circuit pressure table (7) accesses the oil circuit between hydraulic pump (3) and reversal valve (10)
In.
2. as described in claim 1 be used for oil cylinder fault detection device, it is characterised in that: the reversal valve (10) with it is to be checked
It surveys between the rodless cavity of hydraulic cylinder (14) and is equipped with a throttle valve between the rod chamber of hydraulic cylinder to be detected (14)
(11)。
3. being used for the device of oil cylinder fault detection as described in claim 1, it is characterised in that: the hydraulic oil container (1) and liquid
A filter (2) is additionally provided between press pump.
4. being used for the device of oil cylinder fault detection as described in claim 1, it is characterised in that: it further include an overflow valve (5),
In oil circuit between overflow valve (5) access hydraulic pump (3) and reversal valve (10).
5. being used for the device of oil cylinder fault detection as described in claim 1, it is characterised in that: it further include a check valve (8),
The check valve (8) is set in the oil circuit between reversal valve (10) and hydraulic pump (3).
6. as described in claim 1 be used for oil cylinder fault detection device, it is characterised in that: the oil circuit pressure table (7) it
Before be additionally provided with a switch valve (6), accessed in the oil circuit between reversal valve (10) and hydraulic pump (3) after switch valve (6).
7. being used for the device of oil cylinder fault detection as described in claim 1, it is characterised in that: the motor (4) is 220V
Alternating current generator.
8. being used for the device of oil cylinder fault detection as described in claim 1, it is characterised in that: the oil circuit pressure table (7)
Detection range is greater than the detection range of rodless cavity pressure gauge (12) and rod chamber pressure gauge (13).
9. being used for the device of oil cylinder fault detection as described in claim 1, it is characterised in that: the rodless cavity pressure gauge (12)
It is equal with the detection range of rod chamber pressure gauge (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820518796.3U CN208534905U (en) | 2018-04-12 | 2018-04-12 | A kind of device for oil cylinder fault detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820518796.3U CN208534905U (en) | 2018-04-12 | 2018-04-12 | A kind of device for oil cylinder fault detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208534905U true CN208534905U (en) | 2019-02-22 |
Family
ID=65395384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820518796.3U Expired - Fee Related CN208534905U (en) | 2018-04-12 | 2018-04-12 | A kind of device for oil cylinder fault detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208534905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412199A (en) * | 2020-04-26 | 2020-07-14 | 攀钢集团攀枝花钢钒有限公司 | Fault detection method for hydraulic equipment |
| WO2023109049A1 (en) * | 2021-12-17 | 2023-06-22 | 中联重科建筑起重机械有限责任公司 | Intelligent hydraulic system and hydraulic jacking device |
-
2018
- 2018-04-12 CN CN201820518796.3U patent/CN208534905U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412199A (en) * | 2020-04-26 | 2020-07-14 | 攀钢集团攀枝花钢钒有限公司 | Fault detection method for hydraulic equipment |
| WO2023109049A1 (en) * | 2021-12-17 | 2023-06-22 | 中联重科建筑起重机械有限责任公司 | Intelligent hydraulic system and hydraulic jacking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190222 Termination date: 20200412 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |