CN213981459U - Device for detecting leakage amount in hydraulic cylinder of hydraulic hoist - Google Patents
Device for detecting leakage amount in hydraulic cylinder of hydraulic hoist Download PDFInfo
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- CN213981459U CN213981459U CN202022659867.1U CN202022659867U CN213981459U CN 213981459 U CN213981459 U CN 213981459U CN 202022659867 U CN202022659867 U CN 202022659867U CN 213981459 U CN213981459 U CN 213981459U
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Abstract
The utility model provides a device that is used for hydraulic pressure jar internal leakage volume to detect, includes two-way piece, two-way piece respectively with take through joint oil pipe and flanged joint oil pipe intercommunication, flanged joint oil pipe tip is equipped with split type flange, takes through joint oil pipe tip to be provided with and takes the scale food tray. The oil pipe with the straight joint and the oil pipe with the flange joint are arranged vertically. The utility model has compact structure, small volume, low cost and repeated use; the defects that the workload is large and quantitative analysis cannot be performed in the prior art are overcome.
Description
Technical Field
The utility model belongs to the technical field of hydraulic hoist hydraulic cylinder internal leakage quantity detects, in particular to a device that is used for hydraulic hoist hydraulic cylinder internal leakage quantity to detect.
Background
The leakage in the hydraulic cylinder is one of indexes accepted in a hydraulic hoist plant, and mainly refers to the fact that pressure oil in the hydraulic cylinder leaks from an oil cavity with higher pressure to an oil cavity with lower pressure, so that a rod cavity and a rodless cavity of the hydraulic cylinder are communicated, and the output pressure of the hydraulic cylinder is reduced. The method for detecting and testing the leakage in the factory comprises the following steps: the working cavity of the tested cylinder is charged with oil, pressurized to rated pressure or pressure designated by a user, and the leakage quantity of the piston leaking to the unpressurized cavity is measured. The existing method for detecting the internal leakage amount of the hydraulic cylinder comprises the following steps: 1. opening an oil port of the low-pressure cavity, counting the number of drops of hydraulic oil, and estimating the volume of the hydraulic oil; 2. detecting the pressure change of two cavities of the hydraulic cylinder to judge; 3. and respectively installing flow sensors on an oil inlet path and an oil return path of the hydraulic cylinder, and judging leakage faults by comparing oil inlet flow with oil return flow.
However, the above techniques have the following disadvantages: the error is large, and the workload is large; only qualitative analysis can be carried out, and quantitative analysis cannot be carried out; the sensor has high required precision and high cost.
Disclosure of Invention
In view of the technical problems in the background art, the device for detecting the leakage rate in the hydraulic cylinder of the hydraulic hoist provided by the utility model has the advantages of compact structure, small volume, low cost and repeated use; the defects that the workload is large and quantitative analysis cannot be performed in the prior art are overcome.
In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:
the utility model provides a device that is used for hydraulic pressure jar internal leakage volume to detect, includes two-way piece, two-way piece respectively with take through joint oil pipe and flanged joint oil pipe intercommunication, flanged joint oil pipe tip is equipped with split type flange, takes through joint oil pipe tip to be provided with and takes the scale food tray.
In the preferable scheme, the oil pipe with the straight joint and the oil pipe with the flange joint are arranged vertically.
In a preferable scheme, the split type flange comprises a first half flange and a second half flange, and the first half flange and the second half flange are spliced to form a complete flange and are clamped on the oil pipe with the flange joint.
In a preferable scheme, the first half flange and the second half flange are respectively provided with three inner hexagonal screws.
In a preferable scheme, the oil pan with scales is made of transparent materials.
In a preferable scheme, the oil pan with scales is provided with scale indications.
This patent can reach following beneficial effect:
1. the device has compact structure, small volume, low cost and repeated use;
2. the device can bear high pressure, has long service life and is simple and convenient to use;
3. the device can perform quantitative analysis and has high precision.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a three-dimensional structure diagram of the present invention.
In the figure: the device comprises an inner hexagonal screw 1, a split type flange 2, an oil pipe 3 with a straight-through joint, an oil disc 4 with scales, an oil pipe 5 with a flange joint and a two-way block 6.
Detailed Description
The preferable scheme is as shown in fig. 1, the device for detecting the internal leakage amount of the hydraulic cylinder of the hydraulic hoist comprises a two-way block 6, the two-way block 6 is respectively communicated with an oil pipe 3 with a straight joint and an oil pipe 5 with a flange joint, a split flange 2 is arranged at the end part of the oil pipe 5 with the flange joint, and an oil pan 4 with scales is arranged at the end part of the oil pipe 3 with the straight joint.
The oil pipe 3 with the straight joint and the oil pipe 5 with the flange joint are arranged perpendicular to each other.
The split type flange 2 comprises a first half flange and a second half flange, and the first half flange and the second half flange are spliced to form a complete flange and are clamped on the flanged joint oil pipe 5. And the first half flange and the second half flange are respectively provided with three inner hexagonal screws 1. The inner hexagonal screw 1 is used for fixing the split type flange 2. The split type flange 2 is used for the flanged joint oil pipe 5, the end part of the flanged joint oil pipe 5 is provided with an annular bump to form a connecting surface, and the flanged joint oil pipe 5 is connected with the rodless cavity of the hydraulic cylinder through the split type flange 2.
The oil pipe 3 with the straight joint is used for connecting a high-pressure hose of a pump station. The oil pipe 3 with the straight joint comprises a connecting nut, and the oil disc 4 with the scales is clamped after the connecting nut connects the oil pipe 3 with the pump station high-pressure hose.
The oil pan 4 with scales is made of transparent material. The oil disc 4 with scales is provided with scale indications. The oil disc 4 with scales is used for containing leaked oil in the hydraulic cylinder, and the leakage quantity value can be read from the scale disc.
The working principle of the whole device is as follows:
1. after the in-plant assembly of a hydraulic cylinder of the hydraulic hoist is finished;
2. connecting the oil pipe 5 with the flange joint with an oil port of a rodless cavity of the hydraulic cylinder;
3. an oil port of a rod cavity of the hydraulic cylinder is connected with a high-pressure hose of a pump station;
4. the oil pipe 3 with the straight joint is connected with a high-pressure hose of a pump station;
5. starting a pump station, pumping oil to the rod cavity to enable the piston rod to move to the limit position, and stopping the pump;
6. starting a pump station, pumping oil to the rodless cavity (the pumping oil pressure is less than the pressure of a pushing piston), and stopping the pump after the space between the piston and the top of the oil pipe 3 with the straight joint is filled with oil;
7. removing the high-pressure hose of the pump station from the oil pipe 3 with the straight joint;
8. starting a pump station, and pumping oil to the rod cavity according to set pressure and time;
9. the oil leaked from the rod cavity to the rodless cavity overflows from the top of the oil pipe 3 with the straight joint and flows into the oil disc 4 with scales;
10. the internal leak magnitude is read from the graduated oil pan 4.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (6)
1. The utility model provides a device that is used for interior leakage quantity detection of hydraulic hoist pneumatic cylinder which characterized in that: the oil pipe joint comprises a two-way block (6), wherein the two-way block (6) is respectively communicated with an oil pipe (3) with a straight-through joint and an oil pipe (5) with a flange joint, a split flange (2) is arranged at the end part of the oil pipe (5) with the flange joint, and an oil disc (4) with scales is arranged at the end part of the oil pipe (3) with the straight-through joint.
2. The device for detecting the leakage amount in the hydraulic cylinder of the hydraulic hoist according to claim 1, characterized in that: the oil pipe (3) with the straight joint and the oil pipe (5) with the flange joint are arranged vertically.
3. The device for detecting the leakage amount in the hydraulic cylinder of the hydraulic hoist according to claim 1, characterized in that: the split type flange (2) comprises a first half flange and a second half flange, and the first half flange and the second half flange are spliced to form a complete flange and are clamped on the oil pipe (5) with the flange joint.
4. The device for detecting the leakage amount in the hydraulic cylinder of the hydraulic hoist according to claim 3, characterized in that: three inner hexagonal screws (1) are arranged on the first half flange and the second half flange.
5. The device for detecting the leakage amount in the hydraulic cylinder of the hydraulic hoist according to claim 1, characterized in that: the oil disc (4) with scales is made of transparent material.
6. The device for detecting the leakage amount in the hydraulic cylinder of the hydraulic hoist according to claim 5, characterized in that: the oil disc (4) with scales is provided with scale indications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022659867.1U CN213981459U (en) | 2020-11-17 | 2020-11-17 | Device for detecting leakage amount in hydraulic cylinder of hydraulic hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022659867.1U CN213981459U (en) | 2020-11-17 | 2020-11-17 | Device for detecting leakage amount in hydraulic cylinder of hydraulic hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213981459U true CN213981459U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022659867.1U Active CN213981459U (en) | 2020-11-17 | 2020-11-17 | Device for detecting leakage amount in hydraulic cylinder of hydraulic hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213981459U (en) |
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2020
- 2020-11-17 CN CN202022659867.1U patent/CN213981459U/en active Active
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