CN110749429A - Fixture for detecting horizontal performance of viscous damping cylinder - Google Patents
Fixture for detecting horizontal performance of viscous damping cylinder Download PDFInfo
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- CN110749429A CN110749429A CN201911030665.6A CN201911030665A CN110749429A CN 110749429 A CN110749429 A CN 110749429A CN 201911030665 A CN201911030665 A CN 201911030665A CN 110749429 A CN110749429 A CN 110749429A
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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
- G01M13/00—Testing of machine parts
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Abstract
The invention discloses a jig for detecting the horizontal performance of a viscous damping cylinder, which comprises a rack, wherein a top beam is arranged at the top of the rack, a hydraulic cylinder and a force transducer are respectively and fixedly connected to two ends of the rack, a testing device is arranged on the outer surface of the rack, the testing device comprises a bottom supporting plate, and the outer surface of the rack is fixedly connected with the back surface of the bottom supporting plate. This frock clamp is used in viscous damping jar horizontal performance detection, surface through setting up the frame is provided with testing arrangement, and testing arrangement is including end layer board, the surface of frame and the back fixed connection of end layer board, thereby have through this testing arrangement frictional resistance when with viscous damping jar horizontal atress fall to minimumly, conveniently adjust the position of horizontal force on viscous damping jar moreover, be convenient for improve the structure of viscous damping jar and improved the detection precision, the characteristics of the horizontal damping characteristic when can having surveyed different horizontal positions again.
Description
Technical Field
The invention relates to the technical field of performance and quality detection of damping devices for vibration reduction and isolation of equipment and pipelines, in particular to a jig for detecting the horizontal performance of a viscous damping cylinder.
Background
According to the horizontal motion testing device for the viscous damping cylinder, the viscous damping cylinder is placed on a roller support, a cylinder body is connected with a force transducer, and a force application brake is connected with a top plate of the damping cylinder.
The force application line of the force application brake and the force measurement line of the force measurement sensor are not on the same straight line, and the viscous damping cylinder can generate overturning moment, so that the rolling shaft support is arranged on the lower edge of the top plate to balance the overturning moment, and the piston cylinder is prevented from inclining.
The roller support in the test device not only bears the weight of the viscous damping cylinder, but also the storage load for balancing the overturning moment far exceeds the dead weight of the damping cylinder, and the moving friction inevitably brings deviation to the test data of the horizontal damping force.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the jig for detecting the horizontal performance of the viscous damping cylinder, which has the characteristics that the interference of frictional resistance on horizontal damping force data is reduced to the minimum by the jig for testing, the position of the horizontal force on the viscous damping cylinder is convenient to adjust, the structure of the viscous damping cylinder is convenient to improve, and the damping effect is improved.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a frock clamp is used in viscous damping jar horizontal performance detection, includes the frame, and the top of frame is provided with the back timber, and the both ends of frame are fixedly connected with pneumatic cylinder and force cell sensor respectively, and the surface of frame is provided with testing arrangement, and testing arrangement is including the bottom supporting plate, the surface of frame and the back fixed connection of bottom supporting plate.
Furthermore, the bottom plate, the outer cylinder and the top plate of the viscous damping cylinder are fixedly connected to the upper portion of the bottom supporting plate respectively, threaded suspenders are arranged at four corners of the bottom supporting plate and above the top beam, and the threaded suspenders are distributed in an annular array mode by taking the axis of the bottom supporting plate as the array center.
Furthermore, the upper end and the lower end of the threaded suspender are respectively provided with a top spherical conical washer, a top nut, a bottom spherical conical washer and a bottom nut, and the surface of the outer cylinder is respectively and fixedly connected with a U-shaped screw clamp and a saddle-shaped seat.
Furthermore, a clamping beam is fixedly connected to the surface of one side of the saddle-shaped seat, and a fastening nut is connected to the outer surface, close to the U-shaped screw clamp, of the clamping beam in a threaded mode.
Furthermore, a double-lug plate is fixedly connected to the surface of one side of the clamping beam, and a first joint bearing pin seat is hinged to the inner side face of the double-lug plate through a pin shaft.
Furthermore, one side surface of the first joint bearing pin seat is fixedly connected with the rack through a force measuring sensor, and the upper surface of the top plate is fixedly connected with a connecting plate.
Furthermore, the interior of the connecting plate and the interior of the top plate are both fixedly connected with shear pins, and the upper surface of the connecting plate is fixedly connected with hook beams.
Furthermore, a swing rod is arranged at the hook-shaped end of the hook-shaped beam, and a porous adjusting plate is hinged to the outer surface of the swing rod through a pin shaft.
Furthermore, the porous adjusting plate forms a triangle with adjustable size through a pin shaft, and the outer surface of the swing rod and the surface of the porous adjusting plate are hinged with a second joint bearing pin seat through the pin shaft.
Furthermore, the inner wall of the second joint bearing pin seat is in threaded connection with the surface of one end of the piston rod of the hydraulic cylinder, the inner wall of the hook beam is hinged with a hanging ring through a pin shaft, a screw is arranged on the upper surface of the hanging ring, the outer surface of the top beam close to the screw is respectively in threaded connection with a central ball cone gasket and a central nut, and the axes of the central ball cone gasket, the central nut, the screw, the shear pin, the hanging ring, the connecting plate, the top plate, the outer cylinder, the U-shaped screw clamp, the bottom plate, the bottom supporting plate and the rack are.
In conclusion, the invention has the following beneficial effects:
1. the outer surface through setting up the frame is provided with testing arrangement, and testing arrangement is including the bottom plate board, the surface of frame and the back fixed connection of bottom plate board to frictional resistance when having through this testing arrangement with viscous damping cylinder horizontal stress drops to minimum, conveniently adjusts the position of horizontal force on viscous damping cylinder moreover, is convenient for improve the structure of viscous damping cylinder and has improved the detection precision, can survey the characteristics of the horizontal damping characteristic when different horizontal position again.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;
FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1 in accordance with the present invention;
FIG. 5 is an enlarged view of the structure of FIG. 1 at A according to the present invention;
FIG. 6 is an enlarged view of the structure of FIG. 1 at B according to the present invention;
FIG. 7 is an enlarged view of the structure of FIG. 1 at C.
In the figure: 1. a frame; 2. a top beam; 3. a hydraulic cylinder; 4. a force sensor; 5. a bottom pallet; 51. a base plate; 52. an outer cylinder; 53. a top plate; 54. a threaded hanger rod; 55. a top ball cone washer; 56. a top nut; 57. a bottom ball taper washer; 58. a bottom nut; 59. a U-shaped screw clip; 510. a saddle seat; 511. clamping the beam; 512. fastening a nut; 513. a double ear plate; 514. a first knuckle bearing pin boss; 515. a connecting plate; 516. a shear pin; 517. a hook beam; 518. a swing rod; 519. a porous conditioning plate; 520. a second knuckle bearing pin boss; 521. a hoisting ring; 522. a screw; 523. a central ball cone washer; 524. a central nut.
Detailed Description
Example (b): the horizontal offset of the viscous damping cylinder is 20mm, the length of a swing section of a central screw rod for suspending a top plate of the damping cylinder and a piston cylinder exceeds 1000mm, the upper part and the lower part of a hanging point of the top plate are 0.2mm during swing, and the top plate of the viscous damping cylinder cannot be seriously inclined;
the horizontal damping force of the viscous damping cylinder is generally 50KN smaller than the vertical damping force, so that the horizontal characteristic test of the viscous damping cylinder can be carried out on a 50 KN-level hydraulic damper test bed, and the common use of the test bed is realized;
the damping characteristics of viscous damping cylinders generally follow the following equation:
F＝CVα
wherein F is damping force
C is damping coefficient
V is moving speed
α is speed index
Applying different moving speeds V to a viscous damping cylinder with a certain specification to obtain a series of damping forces F, and calculating a damping coefficient C and a speed index α;
the adoption of the scheme of the jig can be used for testing unidirectional force application and vibration function tests, and the displacement-to-force damping characteristic curve of the viscous damping cylinder is drawn to calculate the energy consumption effect.
The present invention is described in further detail below with reference to figures 1-7.
A clamp for detecting the level performance of a viscous damping cylinder comprises a rack 1, wherein a top beam 2 is arranged at the top of the rack 1, a hydraulic cylinder 3 and a force measuring sensor 4 are fixedly connected to two ends of the rack 1 respectively, the type of the force measuring sensor 4 is CYT-202, the type of the hydraulic cylinder 3 is MOB, a testing device is arranged on the outer surface of the rack 1 and comprises a bottom supporting plate 5, and the outer surface of the rack 1 is fixedly connected with the back of the bottom supporting plate 5.
As shown in fig. 1-6, further, a bottom plate 51, an outer cylinder 52 and a top plate 53 of a viscous damping cylinder are fixedly connected above the bottom supporting plate 5, threaded suspenders 54 are arranged at four corners of the bottom supporting plate 5 and above the top beam 2, the plurality of threaded suspenders 54 are distributed in an annular array with the axis of the bottom supporting plate 5 as an array center, top ball conical washers 55, top nuts 56, bottom ball conical washers 57 and bottom nuts 58 are arranged at the upper and lower ends of the threaded suspenders 54, respectively, and a U-shaped screw clamp 59 and a saddle 510 are fixedly connected on the surface of the outer cylinder 52;
as shown in fig. 1-3, further, a clamping beam 511 is fixedly connected to one side surface of the saddle 510, a fastening nut 512 is connected to the outer surface of the clamping beam 511 close to the U-shaped screw 59 in a threaded manner, a double-lug plate 513 is fixedly connected to one side surface of the clamping beam 511, and a first joint bearing pin seat 514 is hinged to the inner side surface of the double-lug plate 513 through a pin shaft;
as shown in fig. 1-3, further, a side surface of the first joint bearing pin seat 514 is fixedly connected with the frame 1 through the load cell 4, the upper surface of the top plate 53 is fixedly connected with a connecting plate 515, both the inside of the connecting plate 515 and the inside of the top plate 53 are fixedly connected with a shear pin 516, and the upper surface of the connecting plate 515 is fixedly connected with a hook beam 517;
as shown in fig. 1-2, further, a swing rod 518 is arranged at the hook-shaped end of the hook-shaped beam 517, a porous adjusting plate 519 is hinged to the outer surface of the swing rod 518 through a pin shaft, the porous adjusting plate 519 forms a triangle with adjustable size through a pin shaft, and a second joint bearing pin seat 520 is hinged to both the outer surface of the swing rod 518 and the surface of the porous adjusting plate 519 through a pin shaft;
as shown in fig. 1-7, further, the inner wall of the second joint bearing pin seat 520 is in threaded connection with one end surface of the piston rod of the hydraulic cylinder 3, the inner wall of the hook-shaped beam 517 is hinged with a suspension ring 521 through a pin shaft, the upper surface of the suspension ring 521 is provided with a screw rod 522, the outer surface of the top beam 2 close to the screw rod 522 is respectively in threaded connection with a central spherical conical washer 523 and a central nut 524, and the axes of the central spherical conical washer 523, the central nut 524, the screw rod 522, the shear pin 516, the suspension ring 521, the connecting plate 515, the top plate 53, the outer cylinder 52, the U-shaped screw clamp 59, the bottom plate 51, the bottom supporting plate 5;
as shown in fig. 1-4, further, a testing device is arranged on the outer surface of the frame 1, and the testing device includes a bottom supporting plate 5, the outer surface of the frame 1 is fixedly connected with the back surface of the bottom supporting plate 5, so that the testing device has the characteristics that the frictional resistance of the viscous damping cylinder during horizontal stress is reduced to the minimum, the position of the horizontal force on the viscous damping cylinder is conveniently adjusted, the structure of the viscous damping cylinder is conveniently improved, the detection precision is improved, and the horizontal damping characteristics of different horizontal positions can be detected.
The working principle is as follows:
the present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a viscous damping jar horizontal performance detects and uses frock clamp, includes frame (1), its characterized in that: the testing device comprises a rack (1) and is characterized in that a top beam (2) is arranged at the top of the rack (1), a hydraulic cylinder (3) and a force measuring sensor (4) are fixedly connected to two ends of the rack (1) respectively, a testing device is arranged on the outer surface of the rack (1) and comprises a bottom supporting plate (5), and the outer surface of the rack (1) is fixedly connected with the back of the bottom supporting plate (5).
2. The jig for detecting the level performance of a viscous damping cylinder according to claim 1, characterized in that: the top of bottom plate (5) is bottom plate (51), outer cylinder (52) and roof (53) of fixedly connected with viscous damping cylinder respectively, the four corners of bottom plate (5) all are provided with screw thread jib (54) with the top of back timber (2), and is a plurality of screw thread jib (54) use the axis of bottom plate (5) to be annular array distribution as the array center.
3. The jig for detecting the level performance of a viscous damping cylinder according to claim 2, characterized in that: the upper end and the lower end of the threaded suspender (54) are respectively provided with a top ball cone gasket (55), a top nut (56), a bottom ball cone gasket (57) and a bottom nut (58), and the surface of the outer cylinder (52) is respectively and fixedly connected with a U-shaped screw clamp (59) and a saddle-shaped seat (510).
4. The jig for detecting the level performance of a viscous damping cylinder according to claim 3, characterized in that: and a clamping beam (511) is fixedly connected to the surface of one side of the saddle-shaped seat (510), and a fastening nut (512) is in threaded connection with the outer surface of the clamping beam (511) close to the U-shaped screw clamp (59).
5. The jig for detecting the level performance of a viscous damping cylinder according to claim 4, characterized in that: the clamping device is characterized in that a double-lug plate (513) is fixedly connected to the surface of one side of the clamping beam (511), and a first joint bearing pin seat (514) is hinged to the inner side face of the double-lug plate (513) through a pin shaft.
6. The jig for detecting the level performance of a viscous damping cylinder according to claim 5, characterized in that: the surface of one side of the first joint bearing pin seat (514) is fixedly connected with the rack (1) through a force measuring sensor (4), and the upper surface of the top plate (53) is fixedly connected with a connecting plate (515).
7. The jig for detecting the level performance of a viscous damping cylinder according to claim 6, characterized in that: the shear pin (516) is fixedly connected to the inner portion of the connecting plate (515) and the inner portion of the top plate (53), and the hook-shaped beam (517) is fixedly connected to the upper surface of the connecting plate (515).
8. The jig for detecting the level performance of a viscous damping cylinder according to claim 7, characterized in that: the hook-shaped end of the hook-shaped beam (517) is provided with a swing rod (518), and the outer surface of the swing rod (518) is hinged with a porous adjusting plate (519) through a pin shaft.
9. The jig for detecting the level performance of a viscous damping cylinder according to claim 8, characterized in that: the multi-hole adjusting plate (519) forms a triangle with adjustable size through a pin shaft, and the outer surface of the swing rod (518) and the surface of the multi-hole adjusting plate (519) are hinged with a second joint bearing pin seat (520) through the pin shaft.
10. The jig for detecting the level performance of a viscous damping cylinder according to claim 9, characterized in that: the inner wall of the second joint bearing pin seat (520) is in threaded connection with one end surface of a piston rod of the hydraulic cylinder (3), the inner wall of the hook beam (517) is hinged to a lifting ring (521) through a pin shaft, a screw rod (522) is arranged on the upper surface of the lifting ring (521), the outer surface, close to the screw rod (522), of the top beam (2) is respectively in threaded connection with a central ball cone gasket (523) and a central nut (524), and the axes of the central ball cone gasket (523), the central nut (524), the screw rod (522), the shear pin (516), the lifting ring (521), the connecting plate (515), the top plate (53), the outer cylinder (52), the U-shaped screw clamp (59), the bottom plate (51), the bottom supporting plate (5) and the frame (1) are all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030665.6A CN110749429B (en) | 2019-10-28 | 2019-10-28 | Fixture for detecting horizontal performance of viscous damping cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911030665.6A CN110749429B (en) | 2019-10-28 | 2019-10-28 | Fixture for detecting horizontal performance of viscous damping cylinder |
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| Publication Number | Publication Date |
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| CN110749429A true CN110749429A (en) | 2020-02-04 |
| CN110749429B CN110749429B (en) | 2021-09-14 |
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