CN219827350U - Hydraulic cylinder inspection device - Google Patents
Hydraulic cylinder inspection device Download PDFInfo
- Publication number
- CN219827350U CN219827350U CN202321327924.3U CN202321327924U CN219827350U CN 219827350 U CN219827350 U CN 219827350U CN 202321327924 U CN202321327924 U CN 202321327924U CN 219827350 U CN219827350 U CN 219827350U
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- cylinder
- hydraulic
- supporting plate
- oil cylinder
- lifting
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- 238000007689 inspection Methods 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 abstract description 30
- 238000007789 sealing Methods 0.000 abstract description 11
- 239000003921 oil Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a hydraulic cylinder inspection device which comprises a lifting cylinder, an upper supporting plate and a lower supporting plate, wherein guide posts are detachably arranged between four corners of the lower supporting plate and four corners of a lifting cylinder fixing plate, and are correspondingly and slidably connected with the upper supporting plate; the lifting force of the hydraulic cylinder can be checked through the force sensor arranged on the upper supporting plate, and the sealing performance of the two ends and the interior of the hydraulic cylinder can be checked; the load test and the pressure maintaining test can be carried out on the hydraulic cylinders with different specifications by adjusting the oil supply pressure of the lifting cylinder; and for the oil cylinder inspection with the hydraulic control check valve, the rated load of the inspected oil cylinder is simulated by adjusting the oil supply pressure of the lifting oil cylinder, so that the performance of the hydraulic control check valve of the inspected oil cylinder can be tested.
Description
Technical Field
The utility model relates to the technical field of hydraulic cylinder inspection, in particular to a hydraulic cylinder inspection device.
Background
It is known that a hydraulic cylinder converts hydraulic energy into mechanical energy, which is an important hydraulic action executing component, and the performance of the hydraulic cylinder directly determines the execution quality of the hydraulic action. Therefore, the performance of the hydraulic cylinder is checked before delivery, during the use stage or after maintenance.
At present, the test of a general hydraulic cylinder needs to be performed with sealing performance test, load test, pressure maintaining test, cylinder jacking force test, hydraulic control check valve test and the like.
The conventional practice mainly comprises the following steps:
1. and the two ends of the hydraulic oil cylinder are restrained in a special steel frame, so that the piston rod of the oil cylinder extends out, and further, the sealing performance of the oil cylinder under rated pressure is tested, and whether oil leakage exists or not is tested. The method has the advantages that the limitation is large, the size of the steel frame is fixed, the requirement on the size of the oil cylinder is met, the internal sealing performance of the oil cylinder cannot be judged, and a load test, a pressure maintaining test, an oil cylinder jacking force test and a hydraulic control check valve test cannot be carried out.
2. The steel frame can adjust the distance between the upper support plate and the lower support plate through the bolt holes with different heights on the vertical arms, so that the inspection of hydraulic cylinders with different sizes is adapted. The method needs to manually adjust the position of the fixing bolt, and has the advantages of high labor intensity and low efficiency. And the sealing performance inside the oil cylinder can not be judged, and a load test, a pressure maintaining test, an oil cylinder jacking force test and a hydraulic control one-way valve test can not be carried out.
3. On the basis of a second adjustable frame, a force sensor is additionally arranged on an upper supporting plate to detect the lifting force of the oil cylinder, and the method can detect the sealing performance of the two ends and the inside of the hydraulic oil cylinder, but cannot carry out a load test, a pressure maintaining test and a hydraulic control check valve test.
Based on the defects in the prior art, the utility model provides a hydraulic cylinder inspection device.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides the hydraulic cylinder inspection device which can be suitable for inspecting hydraulic cylinders with different specifications, saves labor force and has high efficiency; the lifting force of the hydraulic cylinder can be checked, and the sealing performance of the two ends and the interior of the hydraulic cylinder can be checked; the load test and the pressure maintaining test can be carried out on the hydraulic cylinders with different specifications; for the inspection of the oil cylinder with the hydraulic control one-way valve, the performance of the hydraulic control one-way valve of the inspected oil cylinder can be tested, and the problem in the background technology can be effectively solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a hydraulic cylinder verifying attachment, includes lift cylinder, goes up backup pad and lower backup pad, demountable installation has the guide post between the four corners of lower backup pad and the four corners of lift cylinder fixed plate, the guide post corresponds sliding connection with last backup pad, the lift end of lift cylinder and the last fixed surface of last backup pad are connected, the bottom fixed mounting of going up the backup pad has force transducer.
As a preferred embodiment of the present utility model, the guide post is slidably connected to the upper support plate through a sliding bearing.
As a preferable technical scheme of the utility model, the bottom of the force sensor is fixedly provided with an anti-skid guard plate.
As a preferable technical scheme of the utility model, the upper surface of the lower supporting plate is fixedly provided with an anti-slip protection pad.
As a preferable technical scheme of the utility model, the detachable short beams are symmetrically arranged on two sides of the lower supporting plate.
As a preferable technical scheme of the utility model, the detachable short beam is symmetrically provided with detachable support legs at two sides, and the bottoms of the detachable support legs are symmetrically provided with adjustable support legs.
Compared with the prior art, the utility model has the beneficial effects that: the hydraulic cylinder inspection device is reasonable and practical in structure, convenient to operate, capable of adapting to inspection of hydraulic cylinders with different specifications by adjusting the distance between the upper support plate and the lower support plate through the lifting cylinder, labor-saving and high in efficiency; the lifting force of the hydraulic cylinder can be checked through the force sensor arranged on the upper supporting plate, and the sealing performance of the two ends and the interior of the hydraulic cylinder can be checked; the load test and the pressure maintaining test can be carried out on the hydraulic cylinders with different specifications by adjusting the oil supply pressure of the lifting cylinder; and for the oil cylinder inspection with the hydraulic control check valve, the rated load of the inspected oil cylinder is simulated by adjusting the oil supply pressure of the lifting oil cylinder, so that the performance of the hydraulic control check valve of the inspected oil cylinder can be tested.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of the bottom structure of the present utility model.
Fig. 3 is an enlarged schematic view of the structure of the present utility model at a.
In the figure: the lifting oil cylinder 1, an upper supporting plate 2, a lower supporting plate 3, a guide post 4, a sliding bearing 5, a force sensor 6, an anti-slip guard plate 7, an anti-slip protection pad 8, a detachable short beam 9, a detachable supporting leg 10 and an adjustable supporting leg 11.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a hydraulic cylinder verifying attachment, including lift cylinder 1, go up backup pad 2 and lower backup pad 3, demountable installation has guide post 4 between the four corners of lower backup pad 3 and the four corners of lift cylinder 1 fixed plate, through four guide posts 4, play stable supporting role promptly, provide the direction for the reciprocates of last backup pad 2 again, guide post 4 is fixed to adopt the double nut type, can effectively be locking, slide connection corresponds with last backup pad 2 guide post 4, lift end and the last fixed surface of last backup pad 2 of lift cylinder 1 are connected, can adjust the interval between last backup pad 2 and the lower backup pad 3 through lift cylinder 1, can adapt to the inspection of different specification hydraulic cylinders, the bottom fixed mounting of going up backup pad 2 has force sensor 6, through last force sensor 6 of installing on the backup pad 2, can inspect hydraulic cylinder jacking force, also can detect hydraulic cylinder both ends and inside sealing performance, can carry out load test and pressure maintenance test to different specification hydraulic cylinder through adjusting the lift cylinder 1.
Specifically, as shown in fig. 1, the guide post 4 is slidably connected with the upper support plate 2 through the sliding bearing 5, and the smoothness of the up-and-down movement of the upper support plate 2 is improved through the sliding bearing 5 on the upper support plate 2, and meanwhile, the abrasion to the guide post 4 can be prevented.
Further, as shown in fig. 2, the bottom of the force sensor 6 is fixedly provided with an anti-slip guard plate 7, and an anti-slip groove is formed in the anti-slip guard plate, so that the oil cylinder can be prevented from sliding in the inspection process, a certain protection effect can be achieved on the force sensor 6, the contact area with the inspected hydraulic oil cylinder can be increased, and the stability is improved.
Further, as shown in fig. 1, the anti-slip protection pad 8 is fixedly installed on the upper surface of the lower support plate 3, and an anti-slip groove is formed in the anti-slip protection pad 8, so that the oil cylinder can be prevented from sliding in the inspection process.
Further, as shown in fig. 1, the detachable short beams 9 are symmetrically installed on two sides of the lower support plate 3, and the stability of the device can be improved and the detection product type of the device can be expanded through the detachable short beams 9.
Further, as shown in fig. 1 and 3, the detachable short beam 9 is symmetrically provided with detachable support legs 10 on both sides, the bottom of the detachable support legs 10 is symmetrically provided with adjustable support legs 11, the stability of the device can be enhanced by the detachable support legs 10 and the adjustable support legs 11 arranged on the detachable support legs, and the adjustable support legs 11 are provided with uniformly distributed holes, so that an insertion tool can conveniently adjust the adjustable support legs 11.
When in use:
1. the upper support plate 2 and the lower support plate 3 are adjusted to a proper distance through the lifting oil cylinder 1, the anti-skid protection pad 8 is arranged on the lower support plate 2, and the inspected oil cylinder is centrally arranged on the anti-skid protection pad 8.
2. And (3) checking the sealing performance and the jacking force of the oil cylinder: the tested oil cylinder stretches out under the rated pressure and props against the anti-skid guard plate 7 on the force sensor 6, whether the reading of the force sensor 6 is consistent with theoretical data or the deviation is in a reasonable range is observed, if the deviation between the actual measured data and the theoretical data is large, the interior of the tested oil cylinder is sealed and leaked, and the reading of the force sensor 6 is the actual jacking force of the tested oil cylinder under the rated pressure.
The oil cylinder to be inspected stretches out and withdraws in a full stroke under the rated pressure, whether hydraulic oil seeps or flows out from the two ends of the oil cylinder to be inspected is observed, and whether the sealing performance of the two ends of the oil cylinder to be inspected is good is further judged.
3. Load test: and adjusting the pressure of the hydraulic cylinder inspection device, simulating the test load which is 1.25 times of the rated load of the inspected cylinder, enabling the inspected cylinder to stretch and retract for at least 2 times under the test load, and judging whether the load test is passed or not by observing the state of the cylinder.
4. Pressure maintaining test: and adjusting the pressure of the hydraulic cylinder inspection device, simulating the rated load of the inspected cylinder, and under the rated load, extending out the piston of the inspected cylinder by 2/3 of the full stroke, maintaining the pressure for 5 minutes, wherein the pressure drop is not more than 5% of the rated pressure.
5. Pilot operated check valve test: and adjusting the pressure of the hydraulic cylinder inspection device, simulating the rated load of the inspected cylinder, stopping oil supply to the inspected cylinder after the inspected cylinder piston extends out of a certain stroke under the rated load, and observing whether the inspected cylinder piston descends under the rated load so as to verify the performance of the hydraulic control one-way valve.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a hydraulic cylinder verifying attachment, includes lift cylinder (1), goes up backup pad (2) and lower backup pad (3), its characterized in that: guide posts (4) are detachably arranged between four corners of the lower support plate (3) and four corners of the lifting oil cylinder (1) fixing plate, the guide posts (4) are correspondingly and slidably connected with the upper support plate (2), the lifting end of the lifting oil cylinder (1) is fixedly connected with the upper surface of the upper support plate (2), and a force sensor (6) is fixedly arranged at the bottom of the upper support plate (2).
2. The hydraulic ram inspection apparatus of claim 1, wherein: the guide post (4) is connected with the upper supporting plate (2) in a sliding way through a sliding bearing (5).
3. The hydraulic ram inspection apparatus of claim 1, wherein: an anti-slip guard plate (7) is fixedly arranged at the bottom of the force sensor (6).
4. The hydraulic ram inspection apparatus of claim 1, wherein: the upper surface of the lower supporting plate (3) is fixedly provided with an anti-slip protection pad (8).
5. The hydraulic ram inspection apparatus of claim 1, wherein: and detachable short beams (9) are symmetrically arranged on two sides of the lower supporting plate (3).
6. The hydraulic ram inspection apparatus of claim 5, wherein: detachable support legs (10) are symmetrically arranged on two sides of the detachable short beam (9), and adjustable support legs (11) are symmetrically arranged at the bottoms of the detachable support legs (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321327924.3U CN219827350U (en) | 2023-05-29 | 2023-05-29 | Hydraulic cylinder inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321327924.3U CN219827350U (en) | 2023-05-29 | 2023-05-29 | Hydraulic cylinder inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827350U true CN219827350U (en) | 2023-10-13 |
Family
ID=88246152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321327924.3U Active CN219827350U (en) | 2023-05-29 | 2023-05-29 | Hydraulic cylinder inspection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827350U (en) |
-
2023
- 2023-05-29 CN CN202321327924.3U patent/CN219827350U/en active Active
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