CN116839819A - Detection and calibration device for digital hydraulic cylinder and application method thereof - Google Patents
Detection and calibration device for digital hydraulic cylinder and application method thereof Download PDFInfo
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- CN116839819A CN116839819A CN202310961191.7A CN202310961191A CN116839819A CN 116839819 A CN116839819 A CN 116839819A CN 202310961191 A CN202310961191 A CN 202310961191A CN 116839819 A CN116839819 A CN 116839819A
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- 238000001514 detection method Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 72
- 229920000742 Cotton Polymers 0.000 claims description 54
- 238000012360 testing method Methods 0.000 claims description 46
- 238000003860 storage Methods 0.000 claims description 29
- 239000003153 chemical reaction reagent Substances 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 8
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 claims description 7
- 239000001729 Ammonium fumarate Substances 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 7
- 235000019297 ammonium fumarate Nutrition 0.000 claims description 7
- CKKXWJDFFQPBQL-SEPHDYHBSA-N azane;(e)-but-2-enedioic acid Chemical compound N.N.OC(=O)\C=C\C(O)=O CKKXWJDFFQPBQL-SEPHDYHBSA-N 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 238000012795 verification Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 208000002173 dizziness Diseases 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a detection and calibration device for a digital hydraulic cylinder and a use method thereof, and relates to the technical field of hydraulic cylinders, wherein the structure of the invention comprises a detection base and a hydraulic cylinder, and further comprises: the clamping assembly is fixedly arranged at the top of the detection base and is clamped with the hydraulic cylinder; the detection assembly is used for detecting the stroke limit distance of the hydraulic cylinder and the hydraulic oil sealing performance of the hydraulic cylinder, is fixedly arranged at the top of the detection base and is in contact with the output end of the hydraulic cylinder.
Description
Technical Field
The invention relates to the technical field of hydraulic cylinders, in particular to a detection and verification device for a digital hydraulic cylinder and a use method thereof.
Background
In order to ensure the normal use of the hydraulic cylinder, the air tightness of the hydraulic cylinder can be detected in the production process or the maintenance process of the hydraulic cylinder, so that the hydraulic cylinder is prevented from being leaked in the use process, and the common leakage position of the hydraulic cylinder is the gap between the output end of the hydraulic cylinder and the body of the hydraulic cylinder.
The patent publication No. CN108361242A discloses a hydraulic cylinder tightness detection device, which comprises a hydraulic cylinder, wherein a hydraulic push rod is arranged in the hydraulic cylinder, and a hydraulic oil sealing ring is arranged on the hydraulic push rod; the method is characterized in that: the inner cavity of the hydraulic cylinder is provided with a liquid medium sealing ring, the inner cavity of the hydraulic cylinder is divided into a hydraulic oil storage cavity at the lower part and a working cavity at the upper part by the liquid medium sealing ring, the upper part of the working cavity is provided with a liquid medium outlet, the lower part of the working cavity is provided with a liquid medium inlet, the side wall of the hydraulic oil storage cavity is provided with a hydraulic oil interface, the hydraulic oil interface is connected with an accumulator through a hydraulic oil pipe, and a pressure sensor is arranged on the hydraulic oil pipe. The pressure sensor is a pressure sensor with display. The upper part of the hydraulic cylinder is provided with a sealing cover plate at the outlet end of the hydraulic cylinder, and the liquid medium outlet is arranged on the sealing cover plate at the outlet end of the hydraulic cylinder. According to the method, whether leakage exists in the sealing ring of the hydraulic cylinder or not is detected in real time by a method for monitoring the pressure change of the hydraulic oil cavity;
although this patent can detect the leakage condition of hydraulic oil, it cannot detect the aging condition of hydraulic oil when the hydraulic cylinder is used for a long time.
Disclosure of Invention
The invention aims to provide a detection and verification device for a digital hydraulic cylinder and a use method thereof, which are used for solving the problem that the aging condition of hydraulic oil cannot be detected while detecting whether the hydraulic cylinder leaks the hydraulic oil or not in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a detect verifying attachment for digital hydraulic cylinder, including detecting base and pneumatic cylinder, still include:
the clamping assembly is fixedly arranged at the top of the detection base and is clamped with the hydraulic cylinder;
the detection assembly is used for detecting the stroke limit distance of the hydraulic cylinder and the sealing performance of hydraulic oil of the hydraulic cylinder, is fixedly arranged at the top of the detection base and is contacted with the output end of the hydraulic cylinder.
Preferably, the clamping assembly comprises a base box and a first spring, the base box is fixedly arranged at the top of the detection base, two clamping boxes are slidably arranged at the top of the detection base, the clamping boxes are fixedly connected with the base box through the first spring, a thin pad is adhered to the top of the base box and one side surface, close to each other, of the two clamping boxes, and a hydraulic cylinder is arranged at the top of the base box, and the two clamping boxes are clamped with the hydraulic cylinder.
Preferably, the base box and the two clamping boxes are fixedly provided with illuminating lamps, and the base box and the clamping boxes are both transparent boxes.
Preferably, the detection component comprises a support plate, the fixed top that sets up at the detection base of backup pad, the fixed first half hoop that is provided with in top of backup pad, the second half hoop that has the looks adaptation through screw fixed mounting at the top of first half hoop, the joint has annular cotton between first half hoop and the second half hoop, the fixed connecting pipe that sets up in top of second half hoop, the connecting pipe is linked together with the inside of second half hoop, the fixed drain spare that is used for supplementing naphthol and ammonium fumarate mixed reagent that is provided with in top of connecting pipe, the output of pneumatic cylinder extends to between first half hoop and the second half hoop to contact each other with annular cotton.
Preferably, the liquid outlet piece comprises a liquid storage tank, a coil spring and a mounting piece, wherein the liquid storage tank is fixedly arranged at the top of the second half hoop through a connecting pipe, a plug is movably penetrated through a top plate of the liquid storage tank, a rotating shaft is penetrated through the rotation of the coil spring, a baffle is fixedly arranged at the bottom end of the rotating shaft through the mounting piece, the baffle is attached to an inner bottom plate of the liquid storage tank, a liquid outlet groove communicated with the inside of the connecting pipe is formed in the bottom plate of the liquid storage tank, and a liquid outlet hole matched with the liquid outlet groove is formed in the edge of the baffle.
Preferably, the pivot is located the fixed reel that has cup jointed in the outside top of liquid reserve tank, the outside of reel is around having rolled up the flexible rule, the top of detecting the base is provided with the slide rail, slidable mounting has the test board on the slide rail, the fixed traction column that is provided with in top of test board, the terminal fixed connection of traction column's top and flexible rule.
Preferably, the top of liquid reserve tank is fixed and is provided with the L shaped plate, the leading wheel is installed in the top rotation of L shaped plate, the leading wheel is passed over to the end of flexible rule, the inside wall of L shaped plate is fixed and is provided with the pointer that is used for pointing to the flexible rule scale.
Preferably, the mounting comprises a connecting cylinder, the connecting cylinder is fixedly arranged at the top of the baffle, the bottom of the rotating shaft is movably sleeved in the connecting cylinder and is rotationally connected with the baffle, a plurality of spring grooves are uniformly formed in the inner wall of the connecting cylinder, a spring plate is slidably mounted in the spring grooves, a second spring is fixedly connected between the spring plate and the inner wall of the corresponding spring groove, a clamping tooth is fixedly connected to one side surface of the spring plate, the outer side end of the clamping tooth slides and penetrates through the side wall of the spring groove and extends to the inside of the connecting cylinder, two side surfaces of the clamping tooth are respectively arranged into an arc surface and a vertical surface, and a clamping plate meshed with a plurality of clamping teeth is fixedly arranged outside the rotating shaft.
A method of using a detection and calibration device for a digital hydraulic cylinder, the method of using a detection and calibration device for a digital hydraulic cylinder comprising the steps of:
s1, clamping a hydraulic cylinder, placing the hydraulic cylinder to be tested on the top of a base box, enabling an output end of the hydraulic cylinder in a non-starting state to be aligned and inserted into annular cotton, then enabling two clamping boxes to firmly clamp the base box under the elastic action of a first spring, enabling thin pads adhered to the surfaces of the base box and the clamping boxes to be respectively contacted with the bottom and the side surfaces of the hydraulic cylinder, and enabling the inner wall of the annular cotton to be contacted with the output end of the hydraulic cylinder;
s2, starting the hydraulic cylinder, wherein the hydraulic cylinder is started to extend out of the output end, and the output end can prop against the test plate to slide outwards along the sliding rail until the output end of the hydraulic cylinder extends out to a maximum distance;
s3, reading the maximum travel, wherein the flexible rule is pulled out through the traction column in the sliding process of the test board, and when the test board slides to the maximum distance, the numerical value of the flexible rule is read out through the pointing direction of the pointer, so that whether the maximum travel of the hydraulic cylinder meets the standard is obtained;
s4, stopping detection, starting the hydraulic cylinder to retract the output end, and pulling the two clamping boxes apart, so that the hydraulic cylinder is taken down;
s5, observing annular cotton, turning screws to open the first half hoop and the second half hoop, taking out the annular cotton, and judging a test result by observing the color of the annular cotton: when the annular cotton is colorless, the output end of the hydraulic cylinder is not leaked, when the inner wall of the annular cotton is yellowish, the output end of the hydraulic cylinder is leaked, and when the inner wall of the annular cotton is dark blue, purple or black, the hydraulic oil is leaked, and ageing, pollution or mechanical abrasion is caused;
s6, observing the thin pad, starting the illuminating lamp, wherein the lamplight of the illuminating lamp can penetrate through the transparent clamping box, the base box and the thin pad, so that a worker can judge whether hydraulic oil leakage occurs at the bottom and side welding positions of the hydraulic cylinder or not by observing whether light yellow liquid exists on the surface of the thin pad.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the two clamping boxes firmly clamp the base box under the elastic action of the first spring, and the thin pad is arranged, so that the friction force between the hydraulic cylinder and the clamping assembly is improved, the phenomenon that the detection stroke is inaccurate due to creeping or vibration of the hydraulic cylinder during working is prevented, and when leakage occurs at the bottom or side welding part of the hydraulic cylinder body, the leaked hydraulic oil can dizziness the thin pad;
2. according to the invention, the hydraulic cylinder starts to extend out of the output end, the output end can prop against the test plate to slide outwards along the sliding rail until the output end of the hydraulic cylinder extends out to the maximum distance, the flexible rule is pulled out through the traction column in the sliding process of the test plate, and when the test plate slides to the maximum distance, the numerical value of the flexible rule is read through the pointing direction of the pointer, so that whether the maximum stroke of the hydraulic cylinder meets the standard is obtained;
3. according to the invention, the guide wheel is arranged, so that the flexible rule pulled out by the traction column is always in a horizontal state, and the flexible rule cannot deviate along with the reduction of the flexible rule on the reel, thereby being convenient for more accurately reading out the numerical value through the pointer;
4. according to the invention, the flexible rule is pulled out, the reel drives the rotating shaft to rotate together, the rotating shaft can overcome the elasticity of the coil spring to rotate, and the clamping plate extrudes the vertical surface of the clamping tooth, so that the connecting cylinder is rotated, the baffle is rotated, the liquid outlet hole arranged at the edge of the baffle is continuously overlapped with the liquid outlet groove in the rotating process of the baffle, and therefore, the naphthol and ammonium fumarate mixed reagent in the liquid storage tank enters the connecting pipe from the liquid outlet groove through the liquid outlet hole, and finally, annular cotton is soaked gradually;
5. according to the invention, the stirring rod is arranged on the outer wall of the rotating shaft, and the rotating shaft can stir and mix the reagent in the rotating process, so that the reagent effect is better, and the precipitation of the reagent is reduced;
6. according to the invention, the two side surfaces of the clamping teeth are respectively a vertical surface and a cambered surface, when the hydraulic cylinder is started to retract the output end, the test board is less than the pressing of the output end of the hydraulic cylinder, the reel rotates under the restoring force of the coil spring to roll the flexible rule, at the moment, the rotating direction of the rotating shaft is opposite to that of the test, the clamping plate rotates to extrude the cambered surface of the clamping teeth, so that the clamping teeth are extruded inwards to overcome the elasticity of the second spring and retract into the spring groove, the clamping plate smoothly passes through the clamping teeth, the rotating shaft rotates relative to the baffle and the connecting cylinder, and the baffle does not rotate, so that reagents in the liquid storage tank do not flow out any more, and the waste of the reagents is reduced;
7. the invention judges the test result by observing the color of the annular cotton: when the annular cotton is colorless, the output end of the hydraulic cylinder is not leaked, when the inner wall of the annular cotton is yellowish, the output end of the hydraulic cylinder is leaked, and when the inner wall of the annular cotton is dark blue, purple or black, the hydraulic oil is leaked, aged, polluted or mechanically worn, and new hydraulic oil is needed to be replaced in time;
8. according to the invention, by starting the illuminating lamp, the lamplight of the illuminating lamp can penetrate through the transparent clamping box and the base box, and the thin pad is thinner, so that the light of the illuminating lamp can also penetrate through the thin pad, and a worker can conveniently judge whether the hydraulic oil leakage condition exists at the bottom and side welding positions of the hydraulic cylinder by observing whether the surface of the thin pad has light yellow liquid or not.
Drawings
FIG. 1 is a first perspective view of a detection and calibration device for a digital hydraulic cylinder according to the present invention;
FIG. 2 is a second perspective view of a detection and calibration device for a digital hydraulic cylinder according to the present invention;
FIG. 3 is a front cross-sectional view of a detection and calibration device for a digital hydraulic cylinder according to the present invention;
FIG. 4 is a perspective view of a detection and calibration device for a digital hydraulic cylinder of the present invention without a hydraulic cylinder;
FIG. 5 is a perspective view of a detection assembly of the present invention;
FIG. 6 is a perspective cross-sectional view of the clamping assembly of the present invention;
FIG. 7 is a cross-sectional view of a portion of the structure of FIG. 3 in accordance with the present invention;
FIG. 8 is an enlarged view of the structure of FIG. 7A in accordance with the present invention;
FIG. 9 is an enlarged view of the structure of FIG. 7B in accordance with the present invention;
fig. 10 is a top cross-sectional view of the connector barrel of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. detecting a base; 11. a slide rail;
2. a base box; 21. a clamping box; 22. a first spring; 23. a thin pad; 24. a lighting lamp;
3. a hydraulic cylinder;
4. a support plate; 41. a first half hoop; 42. a second half hoop; 43. annular cotton; 44. a connecting pipe;
5. a liquid storage tank; 51. a liquid outlet groove; 52. a plug;
6. a rotating shaft; 61. a coil spring; 62. a reel; 621. a flexible rule; 63. a baffle; 631. a liquid outlet hole; 64. a stirring rod; 65. a clamping plate;
7. a connecting cylinder; 71. a spring groove; 72. a second spring; 73. a spring plate; 74. latch teeth;
8. an L-shaped plate; 81. a pointer; 82. a guide wheel;
9. a test board; 91. and (5) pulling the column.
Description of the embodiments
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 10, the present invention provides a technical solution:
a detect verifying attachment for digital hydraulic cylinder, including detecting base 1 and pneumatic cylinder 3, still include:
the clamping assembly is fixedly arranged at the top of the detection base 1 and is clamped with the hydraulic cylinder 3;
the detection assembly is used for detecting the stroke limit distance of the hydraulic cylinder 3 and the hydraulic oil sealing performance of the hydraulic cylinder 3, is fixedly arranged at the top of the detection base 1 and is in contact with the output end of the hydraulic cylinder 3.
Examples
The clamping assembly comprises a base box 2 and a first spring 22, the base box 2 is fixedly arranged at the top of a detection base 1, two clamping boxes 21 are slidably arranged at the top of the detection base 1, the clamping boxes 21 and the base box 2 are fixedly connected through the first spring 22, a thin pad 23 is adhered to one side surface of the top of the base box 2 and one side surface of the two clamping boxes 21, which are close to each other, of the base box 2, a hydraulic cylinder 3 is arranged at the top of the base box 2, two clamping boxes 21 are clamped with the hydraulic cylinder 3, and illuminating lamps 24 are fixedly arranged inside the base box 2 and the two clamping boxes 21, and the base box 2 and the clamping boxes 21 are all arranged as transparent boxes.
When the hydraulic cylinder is in operation, the two clamping boxes 21 firmly clamp the base box 2 under the elastic action of the first spring 22, the thin pads 23 stuck on the surfaces of the base box 2 and the clamping boxes 21 are respectively contacted with the bottom and the side surfaces of the hydraulic cylinder 3, the friction force between the hydraulic cylinder 3 and the clamping assembly is improved by arranging the thin pads 23, the hydraulic cylinder 3 is prevented from creeping or vibrating during operation to cause inaccurate detection stroke, when the bottom or side surface welding part of the body of the hydraulic cylinder 3 is leaked, leaked hydraulic oil can dizziness the thin pads 23, the lamp 24 is started, the lamp light of the lamp 24 can penetrate through the transparent clamping boxes 21 and the base box 2, the thin pads 23 are arranged thinner, so that the brightness of the lamp 24 can also penetrate through the thin pads 23, and a worker can judge whether the hydraulic oil leakage condition exists at the bottom and the side surface welding part of the hydraulic cylinder 3 by observing whether the surface of the thin pads 23 exists or not.
Examples
The detection assembly comprises a support plate 4, the support plate 4 is fixedly arranged at the top of the detection base 1, a first half hoop 41 is fixedly arranged at the top of the support plate 4, a second half hoop 42 which is matched with the first half hoop 41 is fixedly arranged at the top of the first half hoop 41 through screws, annular cotton 43 is clamped between the first half hoop 41 and the second half hoop 42, a connecting pipe 44 is fixedly arranged at the top of the second half hoop 42, the connecting pipe 44 is communicated with the inside of the second half hoop 42, a liquid outlet piece for supplementing a naphthol and ammonium fumarate mixed reagent is fixedly arranged at the top of the connecting pipe 44, and the output end of the hydraulic cylinder 3 extends between the first half hoop 41 and the second half hoop 42 and is in contact with the annular cotton 43;
the liquid outlet piece comprises a liquid storage tank 5, a coil spring 61 and a mounting piece, wherein the liquid storage tank 5 is fixedly arranged at the top of a second half hoop 42 through a connecting pipe 44, a plug 52 is movably penetrated through a top plate of the liquid storage tank 5, a rotating shaft 6 is penetrated through the top plate of the liquid storage tank 5 through the rotation of the coil spring 61, a baffle 63 is fixedly arranged at the bottom end of the rotating shaft 6 through the mounting piece, the baffle 63 is attached to an inner bottom plate of the liquid storage tank 5, a liquid outlet groove 51 communicated with the inside of the connecting pipe 44 is arranged on the bottom plate of the liquid storage tank 5, and a liquid outlet hole 631 matched with the liquid outlet groove 51 is arranged at the edge of the baffle 63;
the top end of the rotating shaft 6 positioned outside the liquid storage tank 5 is fixedly sleeved with a rolling wheel 62, a flexible rule 621 is wound outside the rolling wheel 62, a sliding rail 11 is arranged at the top of the detection base 1, a test plate 9 is slidably mounted on the sliding rail 11, a traction column 91 is fixedly arranged at the top end of the test plate 9, and the top end of the traction column 91 is fixedly connected with the tail end of the flexible rule 621;
the top of liquid reserve tank 5 is fixed and is provided with L shaped plate 8, the leading wheel 82 is installed in the rotation of the top of L shaped plate 8, the leading wheel 82 is passed over to the end of flexible rule 621, the inside wall of L shaped plate 8 is fixed to be provided with the pointer 81 that is used for pointing flexible rule 621 scale.
When the device works, the output end of the hydraulic cylinder 3 in the non-starting state is aligned to be inserted into the annular cotton 43, the hydraulic cylinder 3 starts to extend out of the output end, when the output end extends to be in contact with the test plate 9, the output end continuously extends to be pressed against the test plate 9 to slide outwards along the sliding rail 11 until the output end of the hydraulic cylinder 3 extends to the maximum distance, the flexible rule 621 can be pulled out through the traction column 91 in the sliding process of the test plate 9, when the test plate 9 slides to the maximum distance, the numerical value of the flexible rule 621 is read out through the pointing direction of the pointer 81, so that whether the maximum stroke of the hydraulic cylinder 3 meets the standard is obtained, wherein the setting of the scale value on the flexible rule 621 needs to subtract the distance from the initial state of the output end of the hydraulic cylinder 3 to the initial position of the test plate 9, and in addition, the setting of the guide wheel 82 enables the flexible rule 621 pulled out by the traction column 91 to be always in the horizontal state, and the flexible rule 621 cannot deviate along with the reduction of the flexible rule 621 on the reel 62, and the numerical value is more accurately read through the pointer 81; when the flexible rule 621 is pulled out, the reel 62 drives the rotating shaft 6 to rotate together, the rotating shaft 6 overcomes the elasticity of the coil spring 61 to rotate, the baffle 63 is rotated through the mounting piece, the liquid outlet hole 631 arranged at the edge of the baffle 63 is continuously overlapped, staggered and overlapped with the liquid outlet groove 51 and … … in the rotating process of the baffle 63, so that the mixed reagent of naphthol and ammonium fumarate in the liquid storage tank 5 enters the connecting pipe 44 from the liquid outlet groove 51 through the liquid outlet hole 631 and finally gradually wets the annular cotton 43, wherein the stirring rod 64 is arranged on the outer wall of the rotating shaft 6, and the rotating shaft 6 can stir the mixed reagent in the rotating process, thereby the reagent effect is better, the precipitation of the reagent is reduced, and when the gap between the output end of the hydraulic cylinder 3 and the body of the hydraulic cylinder leaks, the hydraulic oil drops to the inner annular cotton 43; the annular cotton 43 can be subsequently removed by opening the first half-cuffs 41 and the second half-cuffs 42, and the test result is judged by observing the color of the annular cotton 43: when the annular cotton 43 is colorless, the output end of the hydraulic cylinder 3 is not leaked, when the inner wall of the annular cotton 43 is yellowish, the output end of the hydraulic cylinder 3 is leaked, and when the inner wall of the annular cotton 43 is dark blue, purple or black, the hydraulic oil is leaked, aged, polluted or mechanically worn, and new hydraulic oil is needed to be replaced in time.
Examples
The mounting piece comprises a connecting cylinder 7, the connecting cylinder 7 is fixedly arranged at the top of a baffle 63, the bottom end of a rotating shaft 6 is movably sleeved in the connecting cylinder 7 and is rotationally connected with the baffle 63, a plurality of spring grooves 71 are uniformly formed in the inner wall of the connecting cylinder 7, a spring plate 73 is slidably arranged in the spring grooves 71, a second spring 72 is fixedly connected between the spring plate 73 and the inner wall of the corresponding spring groove 71, a latch 74 is fixedly connected to one side surface of the spring plate 73, the outer side end of the latch 74 slidably penetrates through the side wall of the spring groove 71 and extends into the connecting cylinder 7, two side surfaces of the latch 74 are respectively provided with an arc surface and a vertical surface, and a clamping plate 65 meshed with the plurality of latches 74 is fixedly arranged outside the rotating shaft 6.
When the flexible rule 621 is pulled out, the rotating shaft 6 can squeeze the vertical surface of the latch 74 through the clamping plate 65, so that the connecting cylinder 7 is rotated, the baffle plate 63 is rotated to enable mixed reagent of naphthol and ammonium fumarate in the liquid storage tank 5 to soak the annular cotton 43, when the hydraulic cylinder 3 is started to retract the output end later, the test plate 9 is less than the pressing of the output end of the hydraulic cylinder 3, the winding wheel 62 rotates to wind the flexible rule 621 under the restoring force of the coil spring 61, when the flexible rule 621 is wound, the tail end of the flexible rule 621 can drive the test plate 9 to slide to the original position through the traction column 91, at the moment, the rotating direction of the rotating shaft 6 is opposite to that of the test, the rotating direction of the clamping plate 65 is opposite to that of the test, the clamping plate 65 rotates along with the rotating direction, the arc-shaped surface of the extruding latch 74 is rotated, so that the latch 74 is extruded inwards, the latch 74 overcomes the elasticity of the second spring 72, and retracts into the spring groove 71, so that the clamping plate 65 smoothly passes over the latch 74, the rotating shaft 6 rotates relative to the baffle plate 63 and the connecting cylinder 7, and the baffle plate 63 does not rotate, so that the reagent in the liquid storage tank 5 can not flow out, and the waste of the reagent is reduced.
A method of using a detection and calibration device for a digital hydraulic cylinder, the method of using a detection and calibration device for a digital hydraulic cylinder comprising the steps of:
s1, clamping a hydraulic cylinder 3, placing the hydraulic cylinder 3 to be tested on the top of a base box 2, enabling an output end of the hydraulic cylinder 3 in a non-starting state to be aligned and inserted into the annular cotton 43, then enabling two clamping boxes 21 to firmly clamp the base box 2 under the elastic action of a first spring 22, enabling thin pads 23 adhered to the surfaces of the base box 2 and the clamping boxes 21 to be respectively contacted with the bottom and the side surfaces of the hydraulic cylinder 3, and enabling the inner wall of the annular cotton 43 to be contacted with the output end of the hydraulic cylinder 3;
s2, starting the hydraulic cylinder 3, enabling the hydraulic cylinder 3 to extend out of an output end, and enabling the output end to press the test plate 9 to slide outwards along the sliding rail 11 until the output end of the hydraulic cylinder 3 extends out to a maximum distance;
s3, reading the maximum stroke, wherein the flexible rule 621 is pulled out through the traction column 91 in the sliding process of the test board 9, and when the test board 9 slides to the maximum distance, reading the numerical value of the flexible rule 621 through the pointing direction of the pointer 81, so as to obtain whether the maximum stroke of the hydraulic cylinder 3 meets the standard;
s4, stopping detection, starting the hydraulic cylinder 3 to retract the output end, and pulling the two clamping boxes 21 open, so that the hydraulic cylinder 3 is removed;
s5, observing the annular cotton 43, turning screws to open the first half hoop 41 and the second half hoop 42, taking out the annular cotton 43, and judging a test result by observing the color of the annular cotton 43: when the annular cotton 43 is colorless, the output end of the hydraulic cylinder 3 is not leaked, when the inner wall of the annular cotton 43 is yellowish, the output end of the hydraulic cylinder 3 is leaked, and when the inner wall of the annular cotton 43 is dark blue, purple or black, the hydraulic oil is leaked, and ageing, pollution or mechanical abrasion is caused;
s6, observing the thin pad 23, starting the illuminating lamp 24, wherein the lamplight of the illuminating lamp 24 can penetrate through the transparent clamping box 21, the base box 2 and the thin pad 23, so that a worker can conveniently judge whether hydraulic oil leakage occurs at the bottom and side welding positions of the hydraulic cylinder 3 by observing whether light yellow liquid exists on the surface of the thin pad 23.
Working principle: the invention can detect the maximum travel of the hydraulic cylinder 3 just leaving the factory or being used for a period of time and whether the hydraulic oil leaks or not, and can also detect the aging condition of the hydraulic oil of the hydraulic cylinder 3;
the two clamping boxes 21 are slid to two sides against the elasticity of the first spring 22, then the hydraulic cylinder 3 to be tested is placed at the top of the base box 2, the output end of the hydraulic cylinder 3 in a non-starting state is aligned to be inserted into the annular cotton 43, then the two clamping boxes 21 firmly clamp the base box 2 under the elastic action of the first spring 22, the thin pads 23 stuck on the surfaces of the base box 2 and the clamping boxes 21 are respectively contacted with the bottom and the side surfaces of the hydraulic cylinder 3, and the inner wall of the annular cotton 43 is contacted with the output end of the hydraulic cylinder 3;
starting the hydraulic cylinder 3 to extend out of the output end, when the output end extends to be in contact with the test plate 9, continuing to extend to push the test plate 9 to slide outwards along the sliding rail 11 until the output end of the hydraulic cylinder 3 extends to the maximum distance, and pulling out the flexible rule 621 through the traction column 91 in the sliding process of the test plate 9, when the test plate 9 slides to the maximum distance, reading out the numerical value of the flexible rule 621 through the pointing direction of the pointer 81 to obtain whether the maximum stroke of the hydraulic cylinder 3 meets the standard, wherein the setting of the scale numerical value on the flexible rule 621 requires subtracting the distance from the initial state of the output end of the hydraulic cylinder 3 to the initial position of the test plate 9, and in addition, the setting of the guide wheel 82 enables the flexible rule 621 pulled out by the traction column 91 to be always in a horizontal state, and not to deviate along with the reduction of the flexible rule 621 on the reel 62, so that the numerical value can be read out more accurately through the pointer 81;
when the flexible rule 621 is pulled out, the reel 62 drives the rotating shaft 6 to rotate together, the rotating shaft 6 overcomes the elasticity of the coil spring 61 to rotate, and the vertical surface of the clamping teeth 74 is extruded by the clamping plate 65, so that the rotating connecting cylinder 7 is carried, the rotating baffle 63 is carried, in the rotating process of the baffle 63, the liquid outlet hole 631 arranged at the edge of the baffle 63 is continuously overlapped with the liquid outlet groove 51, staggered and overlapped … …, so that the mixed reagent of naphthol and ammonium fumarate in the liquid storage tank 5 enters the connecting pipe 44 from the liquid outlet groove 51 through the liquid outlet hole 631, and finally the annular cotton 43 is gradually soaked, wherein the stirring rod 64 is arranged on the outer wall of the rotating shaft 6, the rotating shaft 6 can stir the mixed reagent in the rotating process, so that the reagent effect is better, the precipitation of the reagent is reduced, when leakage occurs at the gap between the output end of the hydraulic cylinder 3 and the body, the hydraulic oil drops to the inner ring surface of the annular cotton 43, and when the hydraulic cylinder 3 works, by arranging the thin pad 23, the friction force between the hydraulic cylinder 3 and the clamping assembly is not only improved, the hydraulic cylinder 3 is prevented from entering the inside the connecting pipe 44 through the liquid outlet hole 631, and the liquid outlet groove 51, and the leakage pad is prevented from being caused by the phenomenon that the liquid leakage caused by the detection or the poor detection or the bottom of the hydraulic cylinder body when the hydraulic cylinder is in the side surface is in the working process, or the vibration, and the leakage occurs;
after the detection is finished, the hydraulic cylinder 3 is started to retract the output end, the test board 9 is less than the pressing of the output end of the hydraulic cylinder 3, the winding wheel 62 rotates under the restoring force of the coil spring 61 to wind the flexible rule 621, when the flexible rule 621 is wound, the tail end of the flexible rule is driven by the traction column 91 to slide the test board 9 to the original position, the rotating direction of the rotating shaft 6 at the moment is opposite to that of the test, the rotating direction of the clamping plate 65 is opposite to that of the test, the clamping plate 65 rotates to extrude the arc-shaped surface of the clamping teeth 74, so that the clamping teeth 74 are extruded inwards, the clamping teeth 74 retract into the spring groove 71 against the elasticity of the second spring 72, the clamping plate 65 smoothly passes through the clamping teeth 74, the rotating shaft 6 rotates relative to the baffle 63 and the connecting cylinder 7, the baffle 63 does not rotate any more, and therefore reagents in the liquid storage tank 5 do not flow out any more, and waste of reagents is reduced is wasted is caused;
after the output end of the hydraulic cylinder 3 is fully retracted, the hydraulic cylinder 3 is taken down, and then the screws are turned to open the first half hoop 41 and the second half hoop 42, so that the annular cotton 43 is taken out, and the test result is judged by observing the color of the annular cotton 43: when the annular cotton 43 is colorless, the output end of the hydraulic cylinder 3 is not leaked, when the inner wall of the annular cotton 43 is yellowish, the output end of the hydraulic cylinder 3 is leaked, and when the inner wall of the annular cotton 43 is dark blue, purple or black, the hydraulic oil is leaked, and ageing, pollution or mechanical abrasion is caused, so that new hydraulic oil is needed to be replaced in time;
when the illuminating lamp 24 is started, the lamplight of the illuminating lamp 24 can penetrate through the transparent clamping box 21 and the base box 2, and the thin pad 23 is arranged to be thinner, so that the illuminating lamp 24 can also penetrate through the thin pad 23, and a worker can conveniently judge whether the hydraulic oil leakage condition occurs at the bottom and side welding positions of the hydraulic cylinder 3 by observing whether the surface of the thin pad 23 is light yellow liquid or not.
Although embodiments of the present invention 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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a detect verifying attachment for digital hydraulic cylinder, including detecting base (1) and pneumatic cylinder (3), its characterized in that still includes:
the clamping assembly is fixedly arranged at the top of the detection base (1) and is clamped with the hydraulic cylinder (3);
the detection assembly is used for detecting the stroke limit distance of the hydraulic cylinder (3) and the hydraulic oil sealing performance of the hydraulic cylinder (3), is fixedly arranged at the top of the detection base (1) and is contacted with the output end of the hydraulic cylinder (3).
2. The detection and calibration device for a digital hydraulic cylinder according to claim 1, wherein: the clamping assembly comprises a base box (2) and a first spring (22), wherein the base box (2) is fixedly arranged at the top of a detection base (1), two clamping boxes (21) are slidably arranged at the top of the detection base (1), the clamping boxes (21) are fixedly connected with the base box (2) through the first spring (22), a thin pad (23) is adhered to the top of the base box (2) and one side surface, close to each other, of the two clamping boxes (21), the top of the base box (2) is provided with a hydraulic cylinder (3), and the two clamping boxes (21) are clamped with the hydraulic cylinder (3).
3. The detection and calibration device for a digital hydraulic cylinder according to claim 2, wherein: the base box (2) and the two clamping boxes (21) are fixedly provided with illuminating lamps (24) in the base box, and the base box (2) and the clamping boxes (21) are transparent boxes.
4. A detection and verification device for a digital hydraulic cylinder according to claim 3, wherein: the detection assembly comprises a support plate (4), the support plate (4) is fixedly arranged at the top of a detection base (1), a first half hoop (41) is fixedly arranged at the top of the support plate (4), a second half hoop (42) which is matched with the first half hoop (41) is fixedly arranged at the top of the first half hoop through screws, annular cotton (43) is clamped between the first half hoop (41) and the second half hoop (42), a connecting pipe (44) is fixedly arranged at the top of the second half hoop (42), the connecting pipe (44) is communicated with the inside of the second half hoop (42), a liquid outlet piece for supplementing naphthol and ammonium fumarate mixed reagent is fixedly arranged at the top of the connecting pipe (44), and the output end of the hydraulic cylinder (3) extends between the first half hoop (41) and the second half hoop (42) and contacts with the annular cotton (43) mutually.
5. The detection and calibration device for a digital hydraulic cylinder according to claim 4, wherein: the liquid outlet piece comprises a liquid storage box (5), a coil spring (61) and a mounting piece, the liquid storage box (5) is fixedly arranged at the top of a second half hoop (42) through a connecting pipe (44), a plug (52) is movably penetrated through a top plate of the liquid storage box (5), a rotating shaft (6) is penetrated through the top plate of the liquid storage box (5) through the rotation of the coil spring (61), a baffle (63) is fixedly arranged at the bottom end of the rotating shaft (6) through the mounting piece, the baffle (63) is attached to an inner bottom plate of the liquid storage box (5), a liquid outlet groove (51) communicated with the inside of the connecting pipe (44) is formed in the bottom plate of the liquid storage box (5), and a liquid outlet hole (631) matched with the liquid outlet groove (51) is formed in the edge of the baffle (63).
6. The detection and calibration device for a digital hydraulic cylinder according to claim 5, wherein: the automatic testing device is characterized in that the rotating shaft (6) is fixedly sleeved with the reel (62) at the top end of the outside of the liquid storage tank (5), a flexible rule (621) is wound outside the reel (62), a sliding rail (11) is arranged at the top of the detection base (1), a testing plate (9) is slidably mounted on the sliding rail (11), a traction column (91) is fixedly arranged at the top end of the testing plate (9), and the top end of the traction column (91) is fixedly connected with the tail end of the flexible rule (621).
7. The detection and calibration device for a digital hydraulic cylinder according to claim 6, wherein: the top of liquid reserve tank (5) is fixed and is provided with L shaped plate (8), leading wheel (82) are installed in the top rotation of L shaped plate (8), leading wheel (82) are passed over to the end of flexible rule (621), the inside wall of L shaped plate (8) is fixed and is provided with pointer (81) that are used for pointing flexible rule (621) scale.
8. The detection and calibration device for a digital hydraulic cylinder according to claim 7, wherein: the mounting comprises a connecting cylinder (7), the top at baffle (63) is fixedly arranged on the connecting cylinder (7), the bottom activity of pivot (6) is cup jointed in the inside of connecting cylinder (7) to rotate with baffle (63) and be connected, the inner wall of connecting cylinder (7) evenly is provided with a plurality of spring grooves (71), the inside slidable mounting in spring groove (71) has spring plate (73), fixedly connected with second spring (72) between spring plate (73) and the corresponding spring groove (71) inner wall, a side fixedly connected with latch (74) of spring plate (73), the lateral wall of spring groove (71) is run through in the outside end slip of latch (74) to extend to the inside of connecting cylinder (7), both sides face of latch (74) set up to cambered surface and perpendicular respectively, the outside fixedly of pivot (6) is provided with cardboard (65) with polylith latch (74) engaged with.
9. A method for using the detection and calibration device for the digital hydraulic cylinder, which is applied to the detection and calibration device for the digital hydraulic cylinder according to any one of claims 1 to 8, and is characterized in that the method for using the detection and calibration device for the digital hydraulic cylinder comprises the following steps:
s1, clamping a hydraulic cylinder (3), placing the hydraulic cylinder (3) to be tested on the top of a base box (2), enabling an output end of the hydraulic cylinder (3) in a non-starting state to be aligned and inserted into the annular cotton (43), then enabling two clamping boxes (21) to firmly clamp the base box (2) under the elastic action of a first spring (22), enabling thin pads (23) adhered to the surfaces of the base box (2) and the clamping boxes (21) to be respectively contacted with the bottom and the side surfaces of the hydraulic cylinder (3), and enabling the inner wall of the annular cotton (43) to be contacted with an output port of the hydraulic cylinder (3);
s2, starting the hydraulic cylinder (3), enabling the hydraulic cylinder (3) to extend out of the output end, and enabling the output end to press the test plate (9) to slide outwards along the sliding rail (11) until the output end of the hydraulic cylinder (3) extends out to the maximum distance;
s3, reading the maximum travel, wherein the flexible rule (621) is pulled out through the traction column (91) in the sliding process of the test board (9), and when the test board (9) slides to the maximum distance, reading the numerical value of the flexible rule (621) through the pointing direction of the pointer (81), so as to obtain whether the maximum travel of the hydraulic cylinder (3) meets the standard;
s4, stopping detection, starting the hydraulic cylinder (3) to retract the output end, and pulling the two clamping boxes (21) open, so that the hydraulic cylinder (3) is removed;
s5, observing the annular cotton (43), turning the screw to open the first half hoop (41) and the second half hoop (42), taking out the annular cotton (43), and judging a test result by observing the color of the annular cotton (43): when the annular cotton (43) is colorless, the output end of the hydraulic cylinder (3) is not leaked, when the inner wall of the annular cotton (43) is yellowish, the output end of the hydraulic cylinder (3) is leaked, and when the inner wall of the annular cotton (43) is dark blue, purple or black, the hydraulic oil is leaked, and ageing, pollution or mechanical abrasion is caused;
s6, observing the thin pad (23), starting the illuminating lamp (24), wherein the lamplight of the illuminating lamp (24) can penetrate through the transparent clamping box (21), the base box (2) and the thin pad (23), so that a worker can conveniently judge whether hydraulic oil leakage occurs at the bottom and side welding positions of the hydraulic cylinder (3) by observing whether light yellow liquid exists on the surface of the thin pad (23).
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| CN116183117A (en) * | 2023-04-28 | 2023-05-30 | 山东福阳液压科技有限公司 | Hydraulic cylinder tightness testing device based on displacement |
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| CN210889562U (en) * | 2019-11-12 | 2020-06-30 | 抚顺天宝重工液压制造有限公司 | Hydraulic cylinder performance testing device |
| CN214274097U (en) * | 2020-11-03 | 2021-09-24 | 无锡莱克尔液压机械有限公司 | Hydraulic oil leakage detection device for hydraulic oil cylinder of crane |
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