CN203479555U - Pressure testing device for jack - Google Patents
Pressure testing device for jack Download PDFInfo
- Publication number
- CN203479555U CN203479555U CN201320602131.8U CN201320602131U CN203479555U CN 203479555 U CN203479555 U CN 203479555U CN 201320602131 U CN201320602131 U CN 201320602131U CN 203479555 U CN203479555 U CN 203479555U
- Authority
- CN
- China
- Prior art keywords
- jack
- hydraulic cylinder
- horizontal
- pressure testing
- steel
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000010727 cylinder oil Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000630 rising Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Abstract
Provided is a pressure testing device for a jack, and relates to devices for detection experiment after maintenance of the jack. The pressure testing device is characterized in that the structure of the device comprises a device rack, a hydraulic cylinder and a pressure gauge, the rack comprises a horizontal testing stand, a steel-made column vertically fixed on the horizontal testing stand and a top steel-made horizontal beam fixedly connected to the upper end of the steel-made column, the hydraulic cylinder faces downwardly and the bottom of the cylinder is fixed below the top steel-made horizontal beam of the device rack in a centering manner, and the pressure gauge is arranged on the device rack and connected with an oil cylinder of the hydraulic cylinder. According to the pressure testing device, the jack is arranged on the horizontal testing stand of the device rack during testing, a force is applied to a piston of the jack via a piston of the hydraulic cylinder, the jack is tested, the detection pressure testing of the jack after the maintenance is achieved, and the stability of the operating process of the device is detected.
Description
Technical field
Lifting jack pressure testing device, relates to the device that carries out test experience after lifting jack maintenance.
Background technology
Lifting jack is that in upkeep operation, one of indispensable equipment ， manufacturing enterprise can have a considerable number of various lifting capacities, the lifting jack of all kinds of models conventionally, in various kinds of equipment service work, plays an important role.But the singularity while using because of lifting jack, while requiring to use, must guarantee being perfectly safe of it, and the maintenance, repair of lifting jack self are being related to whether it can use safely, particularly overhaul later test experience and be the key link in it self maintenance process.
At present, at lifting jack, after maintenance, repair, carry out no-load test, be directly used in working-yard after qualified.Due to useless, carry out rated pressure test, often occur at the construction field (site) lifting jack automatic fall-back, do not reach the phenomenons such as regulation lifting capacity.These phenomenons not only affect operating efficiency, increase construction cost, and particularly, when utilizing lifting jack combination process, the safety of construction in serious threat.
Summary of the invention
The deficiency that the Mu Ta of this utility model exists for above-mentioned prior art, provides a kind of and can detect pressure testing to the later lifting jack of maintenance, repair, detects the lifting jack pressure testing device of its course of work stability.
The purpose of this utility model is achieved through the following technical solutions.
Lifting jack pressure testing device, is characterized in that its structure comprises:
Device frame, this frame comprises: a horizontal bed, be vertically fixed on the steel column on horizontal bed and be fixed in the top steel horizontal gird of steel column upper end;
Hydraulic cylinder, this hydraulic cylinder is downward, bottom is fixed on below device frame top steel horizontal gird between two parties;
Tensimeter, in this tensimeter setting device frame, connects with hydraulic cylinder oil cylinder.
Lifting jack pressure testing device of the present utility model, during test, lifting jack is put on the horizontal bed in device frame, the piston of logical hydraulic cylinder is to the jack piston application of force, lifting jack is tested, the detection pressure testing of realization to the later lifting jack of maintenance, repair, detects its course of work stability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Lifting jack pressure testing device, its structure comprises: device frame, this frame comprises: a horizontal bed 1, be vertically fixed on the steel column 2 on horizontal bed and be fixed in the top steel horizontal gird 3 of steel column upper end; Hydraulic cylinder 4, this hydraulic cylinder is downward, bottom is fixed on below device frame top steel horizontal gird between two parties; Tensimeter 5, in this tensimeter setting device frame, connects with hydraulic cylinder oil cylinder.
Concrete operation step is as follows:
(1) first by oil pump station, to hydraulic cylinder, carry out oiling, the working oil of oil pump station output is transported to hydraulic cylinder through high-pressure hose, and high-pressure oil pipe connects with the hydraulic control one-way valve rising portion joint of hydraulic cylinder, and working oil enters hydraulic cylinder cavity of resorption piston and rises, make piston rising 50-80mm left and right, close oil pump station.
2. pressure testing lifting jack is positioned over to pressure testing device platform, lifting jack raises and withstands the stressed seat of pressure testing device, after lifting jack carrying, opens counterclockwise surplus valve, has fluid to overflow in time closing outflow valve clockwise.Adjusting surplus valve makes tensimeter indicated value increase to gradually required pressure.
3. pressure testing lifting jack be placed in horizontal supporting face on, tooth bar, screw rod, plunger are at maximum lifting height, top central vertical acts on the rated load of surface level, start supercharging, reach after lifting jack rated pressure value scope, stop supercharging, check that each parts of lifting jack must not have plastic yield or other abnormal occurrencies.
4. result: do not reach rated pressure value after the supercharging of pressure testing lifting jack or the dwell time does not reach requirement, when plastic yield and other abnormal occurrencies appear in each parts, this lifting jack is defective.Otherwise be qualified.
Claims (1)
1. lifting jack pressure testing device, is characterized in that its structure comprises:
Device frame, this frame comprises: a horizontal bed, be vertically fixed on the steel column on horizontal bed and be fixed in the top steel horizontal gird of steel column upper end;
Hydraulic cylinder, this hydraulic cylinder is downward, bottom is fixed on below device frame top steel horizontal gird between two parties;
Tensimeter, in this tensimeter setting device frame, connects with hydraulic cylinder oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320602131.8U CN203479555U (en) | 2013-09-27 | 2013-09-27 | Pressure testing device for jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320602131.8U CN203479555U (en) | 2013-09-27 | 2013-09-27 | Pressure testing device for jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479555U true CN203479555U (en) | 2014-03-12 |
Family
ID=50227867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320602131.8U CN203479555U (en) | 2013-09-27 | 2013-09-27 | Pressure testing device for jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479555U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729854A (en) * | 2015-04-15 | 2015-06-24 | 阿尔斯通水电设备（中国）有限公司 | Hydro generator large-scale pushing bearing flexible pressure test device |
| CN104748963A (en) * | 2015-04-08 | 2015-07-01 | 嘉兴景添汽保工具有限公司 | Device for resetting jack in static load test |
| CN104792509A (en) * | 2015-04-15 | 2015-07-22 | 大连交通大学 | Pressure tester for bolt tensioner |
| CN105424393A (en) * | 2015-12-11 | 2016-03-23 | 重庆长安空港汽车配件有限责任公司 | Jack detection device |
-
2013
- 2013-09-27 CN CN201320602131.8U patent/CN203479555U/en active IP Right Grant
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104748963A (en) * | 2015-04-08 | 2015-07-01 | 嘉兴景添汽保工具有限公司 | Device for resetting jack in static load test |
| CN104729854A (en) * | 2015-04-15 | 2015-06-24 | 阿尔斯通水电设备（中国）有限公司 | Hydro generator large-scale pushing bearing flexible pressure test device |
| CN104792509A (en) * | 2015-04-15 | 2015-07-22 | 大连交通大学 | Pressure tester for bolt tensioner |
| CN104792509B (en) * | 2015-04-15 | 2017-09-12 | 大连交通大学 | Bolt tensioning jack pressure testing device |
| CN105424393A (en) * | 2015-12-11 | 2016-03-23 | 重庆长安空港汽车配件有限责任公司 | Jack detection device |
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