CN112880946A - Hydraulic stem seal testing device for hydraulic system detection - Google Patents
Hydraulic stem seal testing device for hydraulic system detection Download PDFInfo
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- CN112880946A CN112880946A CN202011356189.XA CN202011356189A CN112880946A CN 112880946 A CN112880946 A CN 112880946A CN 202011356189 A CN202011356189 A CN 202011356189A CN 112880946 A CN112880946 A CN 112880946A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/36—Investigating fluid-tightness of structures by using fluid or vacuum by detecting change in dimensions of the structure being tested
- G01M3/363—Investigating fluid-tightness of structures by using fluid or vacuum by detecting change in dimensions of the structure being tested the structure being removably mounted in a test cell
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Abstract
The invention discloses a hydraulic rod sealing test device for hydraulic system detection, and particularly relates to the technical field of hydraulic systems. According to the invention, the clamping plate, the threaded sleeve, the threaded rod, the mounting frame and the rotating handle are arranged, the hydraulic rod is placed at the top end of the supporting seat, the rotating handle is rotated, the internal threads of the threaded sleeve fixed at the middle position of the mounting frame are meshed with the threaded rod, the threaded rod vertically descends, and the bottom end of the clamping plate tightly presses the air cylinder, so that the detection failure or deviation caused by the displacement of the air cylinder during detection can be avoided.
Description
Technical Field
The invention relates to the technical field of hydraulic systems, in particular to a hydraulic rod sealing test device for hydraulic system detection.
Background
The hydraulic stem is the executive unit among the hydraulic system, and its quality of leaving the factory has directly influenced hydraulic system's operation, if the hydraulic stem appears the gas leakage scheduling problem, can bring a series of safety problems, consequently the hydraulic stem need pass through a series of tests before leaving the factory, wherein the leakproofness looks sideways at one of the most basic test links, and the device that many mills used when detecting the hydraulic stem at present is comparatively crude, and the test effect deviation value is great, but is confined to the unable burden full automatization detection device of capital cost, consequently the urgent need design a cost is lower, easy operation's testing arrangement.
In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved:
(1) the traditional hydraulic rod sealing test device for hydraulic system detection is inconvenient to operate and poor in detection accuracy;
(2) the traditional hydraulic rod sealing test device for hydraulic system detection is inconvenient for clamping and fixing hydraulic rods with different sizes;
(3) the traditional hydraulic rod sealing test device for hydraulic system detection has unclear test results, and a test method needs to be improved.
Disclosure of Invention
The invention aims to provide a hydraulic rod sealing test device for hydraulic system detection, which aims to solve the problems of inconvenient operation and poor detection accuracy in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a hydraulic rod sealing test device for hydraulic system detection comprises a detection table and an air pump, wherein the air pump is arranged on one side of the bottom end of the detection table, the air guide pipe is arranged at the output end of the air pump, a fixed frame is arranged at the top end of the detection table, supporting seats are arranged on two sides of the top end of the detection table, a hydraulic rod is arranged at the top end of each supporting seat, an observation structure is arranged on the other side of the top end of the detection table, a clamping structure is arranged at the middle position of the top end of the fixed frame, and a detection mechanism is arranged on the;
the detection mechanism comprises a movable plate, the movable plate is arranged on the other side of the top end of the fixed frame, a movable groove is formed in the top end of the fixed frame, a movable block is arranged at the bottom end of the movable plate and embedded inside the movable groove, an air pressure detector is arranged on one side of the top end of the movable plate, a box body is arranged at one end of the air pressure detector, a guide pipe is arranged on the other side of the top end of the movable plate, and an air outlet pipe is communicated with the bottom end.
Preferably, the input end of the air outlet pipe is provided with a sealing plug.
Preferably, the supporting seats are provided with two groups at the top end of the detection table and are symmetrically distributed about the vertical center line of the fixing frame.
Preferably, the clamping structure comprises splint, thread bush, threaded rod, mounting bracket and commentaries on classics handle, mounting bracket fixed connection is on the top of mount, the bottom of mounting bracket is provided with the thread bush, thread bush and mount fixed connection, the inside of thread bush is provided with the threaded rod, the bottom fixedly connected with splint of threaded rod, the top fixedly connected with of threaded rod changes the handle.
Preferably, the observation structure comprises slide bar, index, slider, spout and scale, the spout sets up the opposite side on examining test table top, the slider has been inlayed to the inside of spout, the top fixedly connected with slide bar of slider, the one end fixedly connected with index of slide bar, the scale sets up the opposite side at examining test table.
Preferably, the sliding rod is located at a level greater than that of the piston rod portion of the hydraulic rod.
Compared with the prior art, the invention has the beneficial effects that: the hydraulic rod sealing test device for hydraulic system detection not only realizes convenient operation, accurate test, convenient clamping and fixation, but also realizes easy observation of test results;
(1) the air pump, the air guide pipe, the supporting seat, the guide pipe, the box body, the air pressure detector, the movable plate, the moving groove and the air outlet pipe are arranged, the air guide pipe is connected into an air vent at one side of the top end of the air cylinder, the air outlet pipe is connected into an air vent at the other side, the air pump is started to inject air into the air cylinder, the air flow is guided into the guide pipe through the air outlet pipe and then enters the box body, the detection part of the air pressure detector is communicated with the box body, along with the continuous change of the air pressure in the box body, the air pressure numerical value is displayed in the air pressure detector, the air, the movable plate is pushed to one side of the top end of the fixed frame at the top end of the movable groove, the air outlet pipe is connected into the air vent at one side of the top end of the air cylinder, the supporting seat is connected into the other air vent, the detection of the other air vent is completed, the movement is convenient, and the numerical value is accurate;
(2) the hydraulic rod is placed at the top end of the supporting seat through the clamping plate, the threaded sleeve, the threaded rod, the mounting frame and the rotating handle, the rotating handle is rotated, threads inside the threaded sleeve fixed at the middle position of the mounting frame are meshed with the threaded rod, the threaded rod vertically descends, and the bottom end of the clamping plate tightly presses the air cylinder, so that detection failure or deviation caused by displacement of the air cylinder during detection can be avoided;
(3) through being provided with the slide bar, the index, the slider, spout and scale, along with gaseous injection, if there is gas leakage phenomenon, the piston rod portion of hydraulic stem then impels to the slide bar, the slider slides in the spout is inside, drive the index and remove, it stops the gas injection back to show atmospheric pressure arrival rated value on the baroceptor, observe the distance and the record that the slide bar removed, repeat this flow during the detection of second time, compare twice numerical value and can learn whether gas leakage and gas leakage degree, this method is more convenient for observe than traditional bubble detection method, and do not influence the life of hydraulic stem.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
fig. 2 is a front view of the threaded rod of the present invention;
FIG. 3 is a schematic view of an elevation structure of the observation structure of the present invention;
fig. 4 is a schematic front view of the detecting mechanism of the present invention.
In the figure: 1. a detection table; 2. an air pump; 3. an air duct; 4. a supporting seat; 5. a fixed mount; 6. a clamping structure; 601. a splint; 602. a threaded sleeve; 603. a threaded rod; 604. a mounting frame; 605. turning a handle; 7. a conduit; 8. a box body; 9. an air pressure detector; 10. moving the plate; 11. a moving groove; 12. an air outlet pipe; 13. observing the structure; 1301. a slide bar; 1302. indexes; 1303. a slider; 1304. a chute; 1305. and (4) calibration.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: referring to fig. 1-4, a hydraulic rod sealing test device for hydraulic system detection comprises a detection table 1 and an air pump 2, wherein the air pump 2 is arranged on one side of the bottom end of the detection table 1, the air pump 2 can be of a QB1002 type, the output end of the air pump 2 is provided with an air duct 3, the top end of the detection table 1 is provided with a fixing frame 5, two sides of the top end of the detection table 1 are provided with supporting seats 4, the top end of each supporting seat 4 is provided with a hydraulic rod, the other side of the top end of the detection table 1 is provided with an observation structure 13, a clamping structure 6 is arranged in the middle position of the top end of the fixing frame;
referring to fig. 1-4, the hydraulic rod sealing test device for hydraulic system detection further includes a detection mechanism, the detection mechanism includes a moving plate 10, the moving plate 10 is disposed on the other side of the top end of the fixed frame 5, the top end of the fixed frame 5 is provided with a moving groove 11, the bottom end of the moving plate 10 is provided with a moving block, the moving block is embedded in the moving groove 11, one side of the top end of the moving plate 10 is provided with an air pressure detector 9, the type of the air pressure detector 9 can be CLY-1, one end of the air pressure detector 9 is provided with a box body 8, the other side of the top end of the moving plate 10 is provided with a guide;
the input end of the air outlet pipe 12 is provided with a sealing plug;
two groups of supporting seats 4 are arranged at the top end of the detection table 1 and are symmetrically distributed about the vertical center line of the fixing frame 5;
specifically, as shown in fig. 1 and 4, connect air duct 3 into the blow vent of cylinder top one side, connect the blow vent of outlet duct 12 into the opposite side, start air pump 2, to the cylinder gas injection, the air current is by the leading-in pipe 7 of outlet duct 12, get into inside box 8 again, the detection part and the box 8 intercommunication of atmospheric pressure detector 9, along with the constantly changing of box 8 internal gas pressure, atmospheric pressure numerical value shows in the inside of atmospheric pressure detector 9, stop the gas injection after setting up rated value, the observation structure 13 of deuterogamying is surveyed and can be accomplished the detection, when detecting another blow vent, promote movable plate 10 to one side on mount 5 top on movable groove 11 top, connect outlet duct 12 into the blow vent of cylinder top one side, connect another blow vent with supporting seat 4, accomplish the detection to another blow vent, and move conveniently, numerical value is accurate.
Example 2: the clamping structure 6 comprises a clamping plate 601, a threaded sleeve 602, a threaded rod 603, a mounting frame 604 and a rotating handle 605, wherein the mounting frame 604 is fixedly connected to the top end of the fixing frame 5, the threaded sleeve 602 is arranged at the bottom end of the mounting frame 604, the threaded sleeve 602 is fixedly connected with the fixing frame 5, the threaded rod 603 is arranged inside the threaded sleeve 602, the clamping plate 601 is fixedly connected to the bottom end of the threaded rod 603, and the rotating handle 605 is fixedly connected to the top end of the threaded rod 603;
specifically, as shown in fig. 1 and fig. 2, a hydraulic rod is placed at the top end of the supporting seat 4, the rotating handle 605 is rotated, the internal thread of the threaded sleeve 602 fixed at the middle position of the fixing frame 5 is meshed with the threaded rod 603, the threaded rod 603 descends vertically, and the air cylinder is tightly pressed by the bottom end of the clamping plate 601, so that the detection failure or deviation caused by the displacement of the air cylinder during detection can be avoided.
Example 3: the observation structure 13 is composed of a sliding rod 1301, an index 1302, a sliding block 1303, a sliding groove 1304 and a scale 1305, wherein the sliding groove 1304 is arranged on the other side of the top end of the detection table 1, the sliding block 1303 is embedded in the sliding groove 1304, the sliding rod 1301 is fixedly connected to the top end of the sliding block 1303, the index 1302 is fixedly connected to one end of the sliding rod 1301, and the scale 1305 is arranged on the other side of the detection table 1;
the sliding rod 1301 is positioned at a horizontal height which is greater than the horizontal height of the piston rod part of the hydraulic rod;
specifically, as shown in fig. 1 and 3, along with the injection of gas, if there is a gas leakage, the piston rod portion of the hydraulic rod is pushed toward the sliding rod 1301, the slider 1303 slides inside the sliding slot 1304 to drive the indicator 1302 to move, when the gas pressure displayed on the gas pressure detector 9 reaches a rated value and stops injecting gas, the moving distance of the sliding rod 1301 is observed and recorded, the flow is repeated during the second detection, and the gas leakage degree can be known by comparing the values twice.
The working principle is as follows: when the device is used, firstly, a hydraulic rod is placed at the top end of the supporting seat 4, the rotating handle 605 is rotated, the internal threads of the threaded sleeve 602 fixed at the middle position of the fixing frame 5 are meshed with the threaded rod 603, the threaded rod 603 vertically descends, and the bottom end of the clamping plate 601 tightly presses the air cylinder, so that detection failure or deviation caused by displacement of the air cylinder during detection can be avoided.
Afterwards, connect air duct 3 into the blow vent of cylinder top one side, connect the blow vent of outlet duct 12 into the opposite side, start air pump 2, to the cylinder gas injection, the air current is by the leading-in pipe 7 of outlet duct 12, get into inside box 8 again, the detection part and the box 8 intercommunication of atmospheric pressure detector 9, along with the constantly changing of box 8 internal gas pressure, atmospheric pressure numerical value shows in the inside of atmospheric pressure detector 9, stop the gas injection after setting up rated value, it can accomplish the detection to cooperate observation structure 13 to survey again, when detecting another blow vent, promote movable plate 10 to one side on mount 5 tops on the moving chute 11 top, connect the blow vent of outlet duct 12 into cylinder top one side, connect another blow vent with supporting seat 4, accomplish the detection to another blow vent, and move conveniently, numerical value is accurate.
Finally, along with the injection of gas, if there is a gas leakage phenomenon, the piston rod part of the hydraulic rod is pushed towards the sliding rod 1301, the sliding block 1303 slides in the sliding groove 1304 to drive the indicator 1302 to move, after the air pressure displayed on the air pressure detector 9 reaches a rated value and stops injecting gas, the moving distance of the sliding rod 1301 is observed and recorded, the process is repeated during the second detection, whether gas leaks or not and the gas leakage degree can be known by comparing the values of two times, compared with the traditional bubble detection method, the method is more convenient to observe, and the service life of the hydraulic rod is not affected.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a hydraulic system detects uses hydraulic stem seal testing arrangement, is including detecting platform (1) and air pump (2), its characterized in that: an air pump (2) is arranged on one side of the bottom end of the detection table (1), an air guide pipe (3) is arranged at the output end of the air pump (2), a fixed frame (5) is arranged at the top end of the detection table (1), supporting seats (4) are arranged on two sides of the top end of the detection table (1), a hydraulic rod is arranged at the top end of each supporting seat (4), an observation structure (13) is arranged on the other side of the top end of the detection table (1), a clamping structure (6) is arranged in the middle position of the top end of the fixed frame (5), and a detection mechanism is arranged on the other side of the top end;
the detection mechanism comprises a movable plate (10), the movable plate (10) is arranged on the other side of the top end of the fixed frame (5), a movable groove (11) is formed in the top end of the fixed frame (5), a movable block is arranged at the bottom end of the movable plate (10) and embedded inside the movable groove (11), an air pressure detector (9) is arranged on one side of the top end of the movable plate (10), a box body (8) is arranged at one end of the air pressure detector (9), a guide pipe (7) is arranged on the other side of the top end of the movable plate (10), and an air outlet pipe (12) is communicated with the bottom end of the guide pipe.
2. The hydraulic rod sealing test device for the hydraulic system detection according to claim 1, characterized in that: and a sealing plug is arranged at the input end of the air outlet pipe (12).
3. The hydraulic rod sealing test device for the hydraulic system detection according to claim 1, characterized in that: two groups of supporting seats (4) are arranged at the top end of the detection table (1) and are symmetrically distributed about the vertical center line of the fixing frame (5).
4. The hydraulic rod sealing test device for the hydraulic system detection according to claim 1, characterized in that: clamping structure (6) comprise splint (601), thread bush (602), threaded rod (603), mounting bracket (604) and commentaries on classics handle (605), mounting bracket (604) fixed connection is on the top of mount (5), the bottom of mounting bracket (604) is provided with thread bush (602), thread bush (602) and mount (5) fixed connection, the inside of thread bush (602) is provided with threaded rod (603), the bottom fixedly connected with splint (601) of threaded rod (603), the top fixedly connected with of threaded rod (603) changes handle (605).
5. The hydraulic rod sealing test device for the hydraulic system detection according to claim 1, characterized in that: observe structure (13) and constitute by slide bar (1301), index (1302), slider (1303), spout (1304) and scale (1305), spout (1304) set up the opposite side that detects platform (1) top, slider (1303) have been inlayed to the inside of spout (1304), the top fixedly connected with slide bar (1301) of slider (1303), the one end fixedly connected with index (1302) of slide bar (1301), scale (1305) set up the opposite side that detects platform (1).
6. The hydraulic rod sealing test device for the hydraulic system detection according to claim 5, characterized in that: the sliding rod (1301) is positioned at a level higher than that of a piston rod part of the hydraulic rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011356189.XA CN112880946A (en) | 2020-11-27 | 2020-11-27 | Hydraulic stem seal testing device for hydraulic system detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011356189.XA CN112880946A (en) | 2020-11-27 | 2020-11-27 | Hydraulic stem seal testing device for hydraulic system detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112880946A true CN112880946A (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011356189.XA Withdrawn CN112880946A (en) | 2020-11-27 | 2020-11-27 | Hydraulic stem seal testing device for hydraulic system detection |
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| CN (1) | CN112880946A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200790A (en) * | 2022-09-15 | 2022-10-18 | 济宁鲁威液压科技股份有限公司 | Hydraulic mechanical sealing tester based on fluid detection |
-
2020
- 2020-11-27 CN CN202011356189.XA patent/CN112880946A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115200790A (en) * | 2022-09-15 | 2022-10-18 | 济宁鲁威液压科技股份有限公司 | Hydraulic mechanical sealing tester based on fluid detection |
| CN115200790B (en) * | 2022-09-15 | 2022-12-13 | 济宁鲁威液压科技股份有限公司 | Hydraulic mechanical sealing tester based on fluid detection |
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Application publication date: 20210601 |
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| WW01 | Invention patent application withdrawn after publication |