CN111929146B - Observing device for fatigue crack growth of metal material - Google Patents
Observing device for fatigue crack growth of metal material Download PDFInfo
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- CN111929146B CN111929146B CN202010562386.0A CN202010562386A CN111929146B CN 111929146 B CN111929146 B CN 111929146B CN 202010562386 A CN202010562386 A CN 202010562386A CN 111929146 B CN111929146 B CN 111929146B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses an observation device for fatigue crack growth of a metal material, relates to the technical field of metal material fatigue observation devices, and solves the problems that the observation device for fatigue crack growth of the metal material is inconvenient to automatically clamp a part for detection and cannot adjust the observation height according to requirements. The utility model provides an observation device for metal material fatigue crack growth, includes the base, the inboard swing joint of base has the third lead screw, the upper end slidable mounting of third lead screw has the supporting shell, the one end fixed mounting of base has the support column, the inboard swing joint of supporting shell has the second lead screw, the one end fixed mounting of second lead screw has the rotation gear, the upper end slidable mounting of second lead screw has the fixed plate, the lower extreme of fixed plate both sides all fixed mounting has the protective housing, the inboard movable mounting of protective housing has the transfer line. The invention can adjust the observation height according to the needs by conveniently and automatically clamping the parts for detection, and is convenient to use.
Description
Technical Field
The invention relates to the technical field of metal material fatigue observation, in particular to an observation device for metal material fatigue crack growth.
Background
With the rapid development of social economy, metal fatigue refers to the process that materials and components gradually generate local permanent accumulated damage at one or more places under the action of cyclic stress or cyclic strain, cracks are generated or complete fracture happens suddenly after a certain number of cycles, when materials and structures are subjected to repeated load changes, stress values are not exceeding the strength limit of the materials and are possibly damaged even lower than the elastic limit, the damage phenomenon of the materials and the structures under the repeated action of alternating load is called as fatigue damage of metal, the mechanical property of the materials is determined according to static force experiments, and therefore, the parts or structures working under the alternating load are not fully reflected by the characteristics of the materials under the alternating stress, and if the materials and the structures are still designed according to the static load, sudden faults often happen in the use process.
However, the existing observation device for fatigue crack growth of the metal material is inconvenient for automatically clamping parts for detection, and the observation height cannot be adjusted according to the needs; therefore, the existing requirements are not met, and for this reason we propose an observation device for fatigue crack growth of metal materials.
Disclosure of Invention
The invention aims to provide an observation device for the fatigue crack growth of a metal material, which aims to solve the problems that the observation device for the fatigue crack growth of the metal material, which is proposed in the background art, is inconvenient for automatically clamping parts for detection, and cannot adjust the observation height according to the needs.
In order to achieve the above purpose, the present invention provides the following technical solutions: an observation device for fatigue crack growth of a metal material comprises a base, wherein a third screw rod is movably connected to the inner side of the base, a support shell is slidably arranged at the upper end of the third screw rod, and a support column is fixedly arranged at one end of the base;
the inner side of the supporting shell is movably connected with a second screw rod, one end of the second screw rod is fixedly provided with a rotating gear, the upper end of the second screw rod is slidably provided with a fixed plate, the lower ends of two sides of the fixed plate are fixedly provided with protective shells, the inner side of the protective shells is movably provided with a transmission rod, one side of the transmission rod is fixedly provided with a connecting gear, the outer surface of the other side of the transmission rod is movably connected with a transmission belt, the upper end of the transmission belt is movably connected with a connecting sleeve A, the outer surface of the connecting sleeve A is movably connected with a fixed block, the inner side of the fixed block is movably connected with an adjusting rod, one side of the adjusting rod is fixedly provided with a clamping plate, one side of two ends of the clamping plate is fixedly provided with a limiting slide block, the lower ends of the connecting gears are meshed and connected with second toothed strips, the inner sides of the two second toothed strips are connected with the inner side of the supporting shell through two pull rods, one side of the transmission rod is slidably connected with an adjusting sleeve, the upper end of one side of the pull rod is fixedly provided with a limiting block B, and the limiting block B is connected with the supporting shell through a limiting groove A;
the inner side of the support column is movably connected with a first screw rod, one end of the first screw rod is slidably connected with a supporting device, the outer surface of the lower end of the first screw rod is fixedly provided with a transmission gear, one end of the transmission gear is connected with a rack in a meshed mode, one end of the rack is fixedly provided with a first toothed belt, one end of the first toothed belt is connected with a transmission box through a rotating shaft, the lower ends of two sides of the transmission box are fixedly provided with telescopic columns, the lower ends of the inner sides of the telescopic columns are fixedly provided with inhaul cables, one end of the lower ends of the inhaul cables is fixedly provided with a limiting block A, the inner side of one side of the limiting block A is movably connected with a threaded rod, the outer surface of one end of the threaded rod is movably connected with a belt pulley, and the middle position of the belt pulley is movably connected with a knob;
the inner side of the supporting device is fixedly provided with a wire column, the lower end of one end of the wire column is fixedly provided with a connector, the inner side of one end of the supporting device is fixedly provided with a connecting sleeve B, the inner side of the connecting sleeve B is connected with an adjusting column B through an adjusting spring, the upper end of the adjusting column B is fixedly provided with a pulling disc, the lower end of the adjusting column B is fixedly provided with two steel cables, both sides of the lower end of the connecting sleeve B are fixedly provided with supporting shaft columns, one side of each supporting shaft column is fixedly provided with a connecting clamping plate, one end of each connecting clamping plate is fixedly provided with a limiting pulley, the lower end of each supporting shaft column is connected with an adjusting column A through a connecting short column, one side of each adjusting column A is fixedly provided with a connecting block, the other side of each adjusting column A is fixedly provided with a limiting spring, one side of each arc-shaped clamping block is movably connected with an observation column, each observation column is connected with each arc-shaped clamping block through a limiting groove A, and the upper end face of each observation column is provided with a connecting port.
Preferably, the supporting device comprises a supporting frame, a limiting connecting block and a detecting head, wherein the supporting frame is fixedly arranged at one end of the limiting connecting block, and the detecting head is fixedly arranged at the lower end of one end of the supporting frame.
Preferably, the telescopic column comprises a connecting shaft sleeve, a supporting shaft rod and a spring, wherein the spring is fixedly arranged on the inner side of the connecting shaft sleeve, and the supporting shaft rod is fixedly arranged at the upper end of the spring.
Preferably, one end of the supporting shell and one side of the third screw rod are fixedly provided with a motor shell, the inner side of the motor shell is fixedly provided with a motor through a screw, and the motor is connected with the second screw rod through a coupling.
Preferably, the limit sliding block is fixed with the clamping plate through a screw, the protective shell is connected with the fixing block through a sliding groove, one side of the clamping plate is provided with anti-skid patterns, and the other side of the connecting sleeve A is connected with the inner side of the fixing block through a bearing.
Preferably, the limit groove A comprises a round groove and a strip groove, a plurality of strip grooves are formed in the outer surface of the round groove, the size of each strip groove is identical to that of the limit block B, the outer surface of the adjusting sleeve is connected with the inner side of the supporting shell through a bearing, and the adjusting sleeve is connected with the pull rod through a spring.
Preferably, the outer surface of the second toothed belt is provided with a connecting rack, the length of the connecting rack is half of the circumference of the second toothed belt, and the two sides of the supporting shell are provided with scale bars.
Preferably, one end of the rack is completely attached to one end of the first toothed belt, the rack and the first toothed belt are fixed through welding, and the upper end of the telescopic column is fixed to the lower end of the transmission case through a screw.
Preferably, the limit connection block is in threaded connection with the first screw rod, one end of the limit connection block is fixed with one end of the support frame through welding, and the lower end of one end of the support frame is fixed with the upper end of the detection head through a screw.
Preferably, the connecting shaft sleeve is fixed with the base through a screw, the inner side of the connecting shaft sleeve is completely attached to the lower end of the spring, the inner side of the connecting shaft sleeve is fixed with the spring through welding, the upper end of the spring is fixed at the lower end of the supporting shaft rod through welding, the central position of the lower end of the supporting shaft rod is fixed with a guy cable through welding, and the guy cable is connected with the connecting shaft sleeve through a round hole.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the connecting gear is contacted with the second toothed belt, the second toothed belt is limited by the pull rod and does not rotate, so that the second toothed belt drives the connecting gear to rotate, the connecting gear drives the transmission rod to rotate, the transmission rod drives the transmission belt to rotate, the transmission belt drives the connecting sleeve A to rotate, the connecting sleeve A drives the inner adjusting rod to rotate, the adjusting rod is limited by the limiting groove A, the connecting sleeve A pushes the adjusting rod to move, the adjusting rod pushes the clamping plates to enable the two clamping plates to clamp parts, and the device is convenient for automatically clamping the parts;
2. according to the invention, the rack at one end of the first rack belt is contacted with the transmission gear, the fixed plate can not move when the fixed plate is limited at the bottom, the second screw rod can continue to rotate, so that the second screw rod drives the rotation gear to rotate, the rotation gear drives the first rack belt to rotate, the first rack belt drives the rack to rotate, the rack drives the transmission gear to rotate, the transmission gear drives the first screw rod to rotate, and the first screw rod drives the supporting device to lift, so that the detection height is adjusted, and different detection requirements are met;
3. according to the invention, the pull disc is released, the adjusting column A is pulled to return to the initial position by utilizing the adjusting spring at the inner side of the connecting sleeve B, so that the adjusting column A is loosened, the steel rope is loosened to ensure that the adjusting column A is not limited, the adjusting column A is rotated to return to the initial position by utilizing the pulling of the adjusting column A, the adjusting column A is rotated to return to the vertical state, and the arc-shaped clamping block at one side of the adjusting column A is buckled at the inner side of the limiting groove B, so that the observing column is fixed, and the device is convenient to install and detach.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of a base of the present invention;
FIG. 3 is a schematic view of a part of the structure of a fixing block according to the present invention;
FIG. 4 is a schematic view of a part of the protective case of the present invention;
FIG. 5 is a schematic view of a partial structure of a support column of the present invention;
FIG. 7 is a schematic view showing a partial structure of a regulating column A according to the present invention;
fig. 8 is a schematic partial structure of the connecting sleeve B of the present invention.
In the figure: 1. a base; 2. a support column; 3. a first screw rod; 4. a support device; 5. a transmission case; 6. a transmission gear; 7. a first toothed strip; 8. a rack; 9. rotating the gear; 10. a second screw rod; 11. a telescopic column; 12. a guy cable; 13. a threaded rod; 14. a limiting block A; 15. a belt pulley; 16. a knob; 17. a third screw rod; 18. a support case; 19. a fixing plate; 20. a fixed block; 21. connecting sleeve A; 22. an adjusting rod; 23. a clamping plate; 24. a transmission belt; 25. a transmission rod; 26. a connecting gear; 27. a second toothed strip; 28. a pull rod; 29. a limiting block B; 30. an adjusting sleeve; 31. a limit groove A; 32. a protective shell; 33. a limit sliding block; 34. a pulling disc; 35. an observation column; 36. a limit groove B; 37. a connection port; 38. an arc-shaped clamping block; 39. adjusting the column A; 40. supporting the shaft column; 41. connecting clamping plates; 42. connecting sleeve B; 43. an adjusting column B; 44. a connector; 45. an adjusting spring; 46. a limit pulley; 47. a wire rope; 48. a connecting block; 49. a limit spring; 50. a coupling stub; 51. and a wire column.
Detailed Description
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.
Referring to fig. 1 to 8, an embodiment of the present invention provides: the observation device for the fatigue crack growth of the metal material comprises a base 1, wherein a third screw rod 17 is movably connected to the inner side of the base 1, a support shell 18 is slidably arranged at the upper end of the third screw rod 17, and a support column 2 is fixedly arranged at one end of the base 1;
the inner side of the supporting shell 18 is movably connected with a second screw rod 10, one end of the second screw rod 10 is fixedly provided with a rotating gear 9, the upper end of the second screw rod 10 is slidably provided with a fixed plate 19, the lower ends of two sides of the fixed plate 19 are fixedly provided with a protective shell 32, the inner side of the protective shell 32 is movably provided with a transmission rod 25, one side of the transmission rod 25 is fixedly provided with a connecting gear 26, the outer surface of the other side of the transmission rod 25 is movably connected with a transmission belt 24, the upper end of the transmission belt 24 is movably connected with a connecting sleeve A21, the outer surface of the connecting sleeve A21 is movably connected with a fixed block 20, the inner side of the fixed block 20 is movably connected with an adjusting rod 22, one side of the adjusting rod 22 is fixedly provided with a clamping plate 23, one side of two ends of the clamping plate 23 is fixedly provided with a limit slide block 33, the lower ends of the connecting gear 26 are meshed and connected with second tooth strips 27, the two ends of the inner sides of the two second tooth strips 27 are connected with the inner side of the supporting shell 18 through two pull rods 28, an adjusting sleeve 30 is slidably connected to the outer surface of one side of one pull rod 28, a limiting block B29 is fixedly arranged at the upper end of one side of one pull rod 28, the limiting block B29 is connected with the supporting shell 18 through a limiting groove A31, the pull rod 28 pulls the limiting block B29 to be taken out from the inner side of the limiting groove A31 through pulling the pull rod 28, the pull rod 28 loses limitation, the second toothed strip 27 is driven to rotate through rotating the pull rod 28, the extending length of a connecting rack on the outer surface of the second toothed strip 27 is adjusted, the pull rod 28 is released, the limiting block B29 is pulled to return to an initial position by a spring on the inner side of the adjusting sleeve 30, the limiting block B29 is buckled to the inner side of the limiting groove A31, the limiting pull rod 28 is not rotated, a detection part is placed on the upper end surface of the fixed plate 19, a motor on the inner side of a motor shell is installed at one end of the supporting shell 18 to drive the second screw rod 10 to rotate, the fixed plate 19 is pushed to slide, the fixed plate 19 drives the protective shell 32 to move, the connecting gear 26 is arranged at the lower end of one side of the protective shell 32, when the connecting gear 26 is in contact with the second toothed belt 27, the second toothed belt 27 is enabled to stir the connecting gear 26 to rotate due to the fact that the pull rod 28 limits the second toothed belt 27 not to rotate, the connecting gear 26 drives the transmission rod 25 to rotate, the transmission rod 25 drives the transmission belt 24 to rotate, the transmission belt 24 drives the connecting sleeve A21 to rotate, the connecting sleeve A21 drives the inner adjusting rod 22 to rotate, and the adjusting rod 22 is limited by the limiting groove A31, so that the connecting sleeve A21 pushes the adjusting rod 22 to move, the adjusting rod 22 pushes the clamping plates 23 to enable the two clamping plates 23 to clamp parts, and the device is convenient for automatically clamping the parts;
the inner side of the support column 2 is movably connected with a first screw rod 3, one end of the first screw rod 3 is slidably connected with a supporting device 4, the outer surface of the lower end of the first screw rod 3 is fixedly provided with a transmission gear 6, one end of the transmission gear 6 is in meshed connection with a rack 8, one end of the rack 8 is fixedly provided with a first toothed belt 7, one end of the first toothed belt 7 is connected with a transmission box 5 through a rotating shaft, the lower ends of two sides of the transmission box 5 are fixedly provided with telescopic columns 11, the lower ends of the inner sides of the telescopic columns 11 are fixedly provided with a guy rope 12, one end of the lower ends of the guy rope 12 is fixedly provided with a limiting block A14, the inner side of one side of the limiting block A14 is movably connected with a threaded rod 13, the outer surface of one end of the threaded rod 13 is movably connected with a belt pulley 15, the middle position of the belt pulley 15 is movably connected with a knob 16, when a fixed plate 19 moves to the lower end of the supporting device 4, detection is performed through the supporting device 4, and the knob 16 is rotated, the knob 16 drives the belt pulley 15 to rotate, the belt pulley 15 drives the threaded rods 13 on two sides to rotate, the threaded rods 13 drive the limiting blocks A14 to move, the limiting blocks A14 drive the inhaul cables 12 to move forwards to loosen the inhaul cables 12, the telescopic column 11 comprises a connecting shaft sleeve, a supporting shaft rod and a spring, the connecting shaft sleeve jacks up the supporting shaft rod through the spring, the supporting shaft rod jacks up the transmission case 5 to enable the first toothed strip 7 on the inner side of the transmission case 5 to be in contact with the rotating gear 9, the rack 8 on one end of the first toothed strip 7 is in contact with the transmission gear 6, when the fixed plate 19 is limited to the bottom, the fixed plate 19 cannot move, the second screw rod 10 can continue to rotate to enable the second screw rod to drive the rotating gear 9 to rotate, the rotating gear 9 drives the first toothed strip 7 to rotate, the first toothed strip 7 drives the rack 8 to rotate, the rack 8 drives the transmission gear 6 to rotate, and the transmission gear 6 drives the first screw rod 3 to rotate, the first screw rod 3 drives the supporting device 4 to lift so as to adjust the detection height to adapt to different detection requirements;
the inner side of the supporting device 4 is fixedly provided with a wire column 51, the lower end of one end of the wire column 51 is fixedly provided with a connector 44, the inner side of one end of the supporting device 4 is fixedly provided with a connecting sleeve B42, the inner side of the connecting sleeve B42 is connected with an adjusting column B43 through an adjusting spring 45, the upper end of the adjusting column B43 is fixedly provided with a pulling disc 34, the lower end of the adjusting column B43 is fixedly provided with two steel ropes 47, both sides of the lower end of the connecting sleeve B42 are fixedly provided with a supporting shaft column 40, one side of the supporting shaft column 40 is fixedly provided with a connecting clamping plate 41, one end of the connecting clamping plate 41 is fixedly provided with a limiting pulley 46, the lower end of the supporting shaft column 40 is connected with an adjusting column A39 through a connecting short column 50, one side of the upper end of the adjusting column A39 is fixedly provided with a connecting block 48, one side of the adjusting column A39 is fixedly provided with an arc clamping block 38, the other side of the adjusting column A39 is fixedly provided with a limiting spring 49, one side of the arc clamping block 38 is movably connected with an observation column 35, the observation column 35 is connected with the arc clamping block 38 through the limit groove B36, the upper end face of the observation column 35 is provided with a connecting port 37, the observation column 35 is pulled to form an adjusting column A39 by pulling the pulling disc 34, the adjusting column A39 pulls two steel ropes 47, the steel ropes 47 pull a connecting block 48 through the limit pulley 46, the connecting block 48 pulls the adjusting column A39 to rotate, the adjusting column A39 drives the arc clamping block 38 to move, the two adjusting columns A39 are unfolded, the proper observation column 35 is inserted into the inner side of the supporting device 4, the connecting port 37 on the upper end face of the observation column 35 wraps the connecting port 44 on the inner side of the supporting device 4, the observation column 35 is electrified with the connecting port 44, the adjusting column A39 is pulled to return to the initial position by releasing the pulling disc 34 through the adjusting spring 45 on the inner side of the connecting sleeve B42, the steel ropes 47 are loosened, the adjusting column A39 is prevented from being limited, the adjusting column A39 is pulled by the limiting spring 49 to rotate back to the initial position, so that the adjusting column A39 rotates back to the vertical state, and the arc-shaped clamping block 38 on one side of the adjusting column A39 is buckled on the inner side of the limiting groove B36, so that the observing column 35 is fixed, and the device is convenient to install and detach the observing column 35.
Further, strutting arrangement 4 includes support frame, spacing connecting block and detects the head, and the one end fixed mounting of spacing connecting block has the support frame, and the lower extreme of support frame one end has the head of detecting, and the device detects through installation strutting arrangement 4 is convenient for the device facilitates the use.
Further, the telescopic column 11 comprises a connecting shaft sleeve, a supporting shaft rod and a spring, the spring is fixedly arranged on the inner side of the connecting shaft sleeve, the supporting shaft rod is fixedly arranged at the upper end of the spring, and the telescopic column 11 is matched with the transmission case 5, so that the device is convenient to adjust the height of the transmission case 5 for use.
Further, one end of the supporting shell 18 and one side of the third screw rod 17 are fixedly provided with a motor shell, the inner side of the motor shell is fixedly provided with a motor through a screw, the motor is connected with the second screw rod 10 through a coupling, and the device is convenient to use by installing the motor.
Further, the limiting slide block 33 is fixed with the clamping plate 23 through a screw, the protective shell 32 is connected with the fixed block 20 through a sliding groove, one side of the clamping plate 23 is provided with anti-slip patterns, the other side of the connecting sleeve A21 is connected with the inner side of the fixed block 20 through a bearing, the device is limited by the limiting slide block 33 through the cooperation of the limiting slide block 33, the connecting sleeve A21 of the device pushes the adjusting rod 22 to move by utilizing the adjusting rod 22, the adjusting rod 22 pushes the clamping plate 23 to enable the two clamping plates to clamp parts, and the device is convenient for automatically clamping the parts.
Further, the limiting groove A31 comprises a circular groove and a plurality of strip-shaped grooves, the size of each strip-shaped groove is identical to that of the limiting block B29, the outer surface of the adjusting sleeve 30 is connected with the inner side of the supporting shell 18 through a bearing, the adjusting sleeve 30 is connected with the pull rod 28 through a spring, the pull rod 28 is pulled by the pull rod 28 to pull the limiting block B29 to be taken out from the inner side of the limiting groove A31, the pull rod 28 is enabled to lose limiting, the pull rod 28 is rotated to drive the second toothed strip 27 to rotate, the extending length of the connecting rack on the outer surface of the second toothed strip 27 is adjusted, the pull rod 28 is released, the limiting block B29 is pulled to return to the initial position by the spring on the inner side of the adjusting sleeve 30, the limiting block B29 is buckled to the inner side of the limiting groove A31, the limiting pull rod 28 is enabled not to rotate, and parts with different widths can be clamped.
Further, the outer surface of the second toothed belt 27 is provided with a connecting rack, the length of the connecting rack is half of the circumference of the second toothed belt 27, the two sides of the supporting shell 18 are provided with scale bars, and the device is matched with the connecting rack through the second toothed belt 27, so that the device is convenient to adjust and use.
Further, the one end of rack 8 is laminated completely with the one end of first tooth strip 7, rack 8 passes through welded fastening with first tooth strip 7, the upper end of flexible post 11 passes through the screw fixation at the lower extreme of transmission case 5, the device passes through the one end of installation rack 8 and the cooperation of first tooth strip 7, it rotates to drive rotation gear 9 through second lead screw 10, rotation gear 9 drives first tooth strip 7 and rotates, first tooth strip 7 drives rack 8 and rotates, rack 8 drives transmission gear 6 and rotates, transmission gear 6 drives first lead screw 3 and rotates, first lead screw 3 drives strutting arrangement 4 and goes up and down, make its height of adjusting the detection, in order to adapt to different detection demands.
Further, the spacing connecting block passes through threaded connection with first lead screw 3, and welded fastening is passed through with the one end of support frame to the one end of spacing connecting block, and the lower extreme of support frame one end passes through the fix with screw with the upper end of detecting the head, and the device is through the cooperation of installation first lead screw 3 with detecting the head for the device utilizes the rotation of first lead screw 3, conveniently adjusts and detects the head height.
Further, the connecting shaft sleeve is fixed with the base 1 through the screw, the inner side of the connecting shaft sleeve is completely attached to the lower end of the spring, the inner side of the connecting shaft sleeve is fixed with the spring through welding, the upper end of the spring is fixed to the lower end of the supporting shaft rod through welding, the central position of the lower end of the supporting shaft rod is connected with the connecting shaft sleeve through the welding fixing inhaul cable 12, the device is connected with the connecting shaft sleeve through a round hole, the knob 16 drives the belt pulley 15 to rotate, the belt pulley 15 drives the threaded rod 13 on two sides to rotate, the threaded rod 13 drives the limiting block A14 to move, the limiting block A14 drives the inhaul cable 12 to move forwards, the inhaul cable 12 is loosened, and the telescopic column 11 comprises the connecting shaft sleeve, the supporting shaft rod and the spring, the connecting shaft sleeve is jacked up by the supporting shaft rod through the spring, and the supporting shaft rod jacks up the transmission case 5, so that the device is convenient to use.
Working principle: when in use, the use condition of each mechanism is checked, the device is moved to a working area, the pulling disc 34 is pulled to enable the device to pull the adjusting column B43, the adjusting column B43 pulls two steel ropes 47, the steel ropes 47 pull the connecting block 48 through the limiting pulley 46, the connecting block 48 pulls the adjusting column A39 to rotate, the adjusting column A39 drives the arc-shaped clamping block 38 to move, the two adjusting columns A39 are unfolded, the proper observing column 35 is inserted into the inner side of the supporting device 4, the connecting port 37 at the upper end face of the observing column 35 wraps the connecting head 44 at the inner side of the supporting device 4, the observing column 35 is electrified with the connecting head 44, the adjusting column A39 is pulled to return to the initial position by releasing the pulling disc 34, the steel ropes 47 are loosened by the adjusting column A39, the connecting block 48 is loosened by the steel ropes 47, the adjusting column A39 is not limited by the limiting spring 49, the adjusting column A39 is pulled to return to the initial position, the adjusting column A39 is rotated to be in a vertical state, the arc-shaped clamping block 38 on one side of the adjusting column A39 is buckled on the inner side of the limiting groove B36, the observing column 35 is fixed, the device is convenient to mount and dismount the observing column 35, the pull rod 28 pulls the limiting block B29 to be taken out of the inner side of the limiting groove A31 by pulling the pull rod 28, the pull rod 28 loses the limiting function, the pull rod 28 is rotated to drive the second toothed strip 27 to rotate, the length of the connecting rack on the outer surface of the second toothed strip 27, the pull rod 28 is released, the limiting block B29 is pulled to return to the initial position by a spring on the inner side of the adjusting sleeve 30, the limiting block B29 is buckled on the inner side of the limiting groove A31, the limiting pull rod 28 is not rotated, a detection part is placed on the upper end surface of the fixing plate 19, the motor on the inner side of the motor casing is mounted at one end of the supporting casing 18 to drive the second screw rod 10 to rotate, the fixing plate 19 is pushed to slide, the fixing plate 19 drives the protective shell 32 to move, the connecting gear 26 is arranged at the lower end of one side of the protective shell 32, when the connecting gear 26 is contacted with the second toothed belt 27, the second toothed belt 27 is stirred to rotate by the connecting gear 26 because the pull rod 28 limits the second toothed belt 27 not to rotate, the connecting gear 26 drives the transmission rod 25 to rotate, the transmission rod 25 drives the transmission belt 24 to rotate, the transmission belt 24 drives the connecting sleeve A21 to rotate, the connecting sleeve A21 drives the inner adjusting rod 22 to rotate, the adjusting rod 22 is limited by the limiting sliding block 33, the connecting sleeve A21 drives the adjusting rod 22 to move, the adjusting rod 22 drives the clamping plates 23 to enable the two clamping plates 23 to clamp parts, the device is convenient for automatically clamping parts, the rotating disc of the third screw 17 and the second screw 10 is good, the device can be detected at any position, when the fixed plate 19 moves to the lower end of the supporting device 4, detection is carried out through the supporting device 4, the knob 16 drives the belt pulley 15 to rotate through rotating the knob 16, the belt pulley 15 drives the threaded rods 13 on two sides to rotate, the threaded rods 13 drive the limiting blocks A14 to move, the limiting blocks A14 drive the inhaul cables 12 to move forwards so as to loosen the inhaul cables 12, the telescopic column 11 comprises a connecting shaft sleeve, a supporting shaft rod and a spring, the connecting shaft sleeve jacks the supporting shaft rod through the spring, the supporting shaft rod jacks the transmission case 5, the first toothed strip 7 on the inner side of the transmission case 5 is contacted with the rotating gear 9, the rack 8 on one end of the first toothed strip 7 is contacted with the transmission gear 6, when the fixed plate 19 is limited to the bottom, the fixed plate 19 can not move, the second screw rod 10 can continue to rotate so as to drive the rotating gear 9 to rotate, the rotating gear 9 drives the first toothed strip 7 to rotate, and the first toothed strip 7 drives the rack 8 to rotate, the rack 8 drives the transmission gear 6 to rotate, the transmission gear 6 drives the first screw rod 3 to rotate, and the first screw rod 3 drives the supporting device 4 to lift, so that the detection height is adjusted to adapt to different detection requirements.
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 characteristics 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 (10)
1. An observation device for fatigue crack growth of a metal material, comprising a base (1), characterized in that: a third screw rod (17) is movably connected to the inner side of the base (1), a supporting shell (18) is slidably arranged at the upper end of the third screw rod (17), and a supporting column (2) is fixedly arranged at one end of the base (1);
the inner side of the supporting shell (18) is movably connected with a second screw rod (10), one end of the second screw rod (10) is fixedly provided with a rotary gear (9), the upper end of the second screw rod (10) is slidably provided with a fixed plate (19), the lower ends of two sides of the fixed plate (19) are fixedly provided with a protective shell (32), the inner side of the protective shell (32) is movably provided with a transmission rod (25), one side of the transmission rod (25) is fixedly provided with a connecting gear (26), the outer surface of the other side of the transmission rod (25) is movably connected with a transmission belt (24), the upper end of the transmission belt (24) is movably connected with a connecting sleeve A (21), the outer surface of the connecting sleeve A (21) is movably connected with a fixed block (20), the inner side of the fixed block (20) is movably connected with an adjusting rod (22), one side of the adjusting rod (22) is fixedly provided with a clamping plate (23), one side of two ends of the clamping plate (23) is fixedly provided with a limiting slide block (33), the lower end of the connecting gear (26) is meshed with a second toothed strip (27), two inner sides of the two toothed strips (27) are connected with one of the outer surfaces (28) of the two pull rods (28), a limiting block B (29) is fixedly arranged at the upper end of one side of one pull rod (28), and the limiting block B (29) is connected with the supporting shell (18) through a limiting groove A (31);
the novel cable support is characterized in that a first screw rod (3) is movably connected to the inner side of the support column (2), one end of the first screw rod (3) is slidably connected with a supporting device (4), a transmission gear (6) is fixedly arranged on the outer surface of the lower end of the first screw rod (3), a rack (8) is connected to one end of the transmission gear (6) in a meshed mode, a first toothed belt (7) is fixedly arranged at one end of the rack (8), a transmission case (5) is connected to one end of the first toothed belt (7) through a rotating shaft, telescopic columns (11) are fixedly arranged at the lower ends of two sides of the transmission case (5), a cable (12) is fixedly arranged at the lower ends of the inner sides of the telescopic columns (11), a limit block A (14) is fixedly arranged at one end of the lower end of the cable (12), a threaded rod (13) is movably connected to the inner side of one side of the limit block A (14), a belt pulley (15) is movably connected to the outer surface of one end of the threaded rod (13), and a knob (16) is movably connected to the middle position of the belt pulley (15).
The inner side of the supporting device (4) is fixedly provided with a wire column (51), the lower end of one end of the wire column (51) is fixedly provided with a connecting head (44), the inner side of one end of the supporting device (4) is fixedly provided with a connecting sleeve B (42), the inner side of the connecting sleeve B (42) is connected with an adjusting column B (43) through an adjusting spring (45), the upper end of the adjusting column B (43) is fixedly provided with a pulling disc (34), the lower end of the adjusting column B (43) is fixedly provided with two steel cables (47), both sides of the lower end of the connecting sleeve B (42) are fixedly provided with supporting shaft columns (40), one side of the supporting shaft columns (40) is fixedly provided with a connecting clamp plate (41), one end of the connecting clamp plate (41) is fixedly provided with a limiting pulley (46), the lower end of the supporting shaft columns (40) is connected with an adjusting column A (39) through a connecting short column (50), one side of the upper end of the adjusting column A (39) is fixedly provided with a pulling disc (38), one side of the adjusting column A (39) is fixedly provided with a clamping block (38), the other side of the adjusting column A (39) is fixedly provided with a limiting block (38), one side of the observing column (35) is fixedly provided with a limiting block (35) through an arc-shaped connecting block (35), the upper end face of the observation column (35) is provided with a connecting port (37).
2. An observation device for fatigue crack growth of metallic materials according to claim 1, wherein: the supporting device (4) comprises a supporting frame and a limiting connecting block, wherein the supporting frame is fixedly arranged at one end of the limiting connecting block, and a viewing head is fixedly arranged at the inner side of the viewing column (35).
3. An observation device for fatigue crack growth of metallic materials according to claim 1, wherein: the telescopic column (11) comprises a connecting shaft sleeve, a supporting shaft rod and a spring, wherein the spring is fixedly arranged on the inner side of the connecting shaft sleeve, and the supporting shaft rod is fixedly arranged at the upper end of the spring.
4. An observation device for fatigue crack growth of metallic materials according to claim 1, wherein: one end of the supporting shell (18) and one side of the third screw rod (17) are fixedly provided with a motor shell, the inner side of the motor shell is fixedly provided with a motor through a screw, and the motor is connected with the second screw rod (10) through a coupling.
5. An observation device for fatigue crack growth of metallic materials according to claim 1, wherein: the limiting sliding block (33) is fixed with the clamping plate (23) through a screw, the protective shell (32) is connected with the fixed block (20) through a sliding groove, one side of the clamping plate (23) is provided with anti-skidding patterns, and the other side of the connecting sleeve A (21) is connected to the inner side of the fixed block (20) through a bearing.
6. An observation device for fatigue crack growth of metallic materials according to claim 1, wherein: the limiting groove A (31) comprises a round groove and a plurality of strip-shaped grooves, the outer surfaces of the round grooves are provided with the strip-shaped grooves, the size of each strip-shaped groove is identical to that of the limiting block B (29), the outer surfaces of the adjusting sleeves (30) are connected with the inner side of the supporting shell (18) through bearings, and the adjusting sleeves (30) are connected with the pull rods (28) through springs.
7. An observation device for fatigue crack growth of metallic materials according to claim 1, wherein: the outer surface of second tooth strip (27) is provided with the connection rack, the length of connection rack is the half of second tooth strip (27) girth, the both sides of support shell (18) all are provided with the scale strip.
8. An observation device for fatigue crack growth of metallic materials according to claim 1, wherein: one end of the rack (8) is completely attached to one end of the first toothed belt (7), the rack (8) is fixed with the first toothed belt (7) through welding, and the upper end of the telescopic column (11) is fixed at the lower end of the transmission case (5) through a screw.
9. An observation device for fatigue crack growth of metallic materials according to claim 2, wherein: the limiting connection block is connected with the first screw rod (3) through threads, and one end of the limiting connection block is fixed with one end of the supporting frame through welding.
10. An observation device for fatigue crack growth of metal materials according to claim 3, wherein: the connecting shaft sleeve is fixed with the base (1) through a screw, the inner side of the connecting shaft sleeve is completely attached to the lower end of the spring, the inner side of the connecting shaft sleeve is fixed with the spring through welding, the upper end of the spring is fixed at the lower end of the supporting shaft rod through welding, the central position of the lower end of the supporting shaft rod is fixedly provided with a guy cable (12) through welding, and the guy cable (12) is connected with the connecting shaft sleeve through a round hole.
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| CN112762977B (en) * | 2020-12-24 | 2022-12-20 | 西安客都荟电子科技有限公司 | Light sensor test equipment |
| CN114166668B (en) * | 2021-11-19 | 2023-08-01 | 广东石油化工学院 | Quick assembly disassembly loader for metal material fatigue degree test workbench |
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