CN120558759A - A testing machine for fatigue bending performance of piston rod of hydraulic hoist - Google Patents
A testing machine for fatigue bending performance of piston rod of hydraulic hoistInfo
- Publication number
- CN120558759A CN120558759A CN202511061465.2A CN202511061465A CN120558759A CN 120558759 A CN120558759 A CN 120558759A CN 202511061465 A CN202511061465 A CN 202511061465A CN 120558759 A CN120558759 A CN 120558759A
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- China
- Prior art keywords
- fixed
- plate
- vertical
- rod
- piston rod
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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
-
- 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
-
- 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
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a testing machine for fatigue bending resistance of a piston rod of a hydraulic hoist, and relates to the technical field of hydraulic hoist detection equipment. According to the tester for the fatigue bending resistance of the hydraulic hoist piston rod, through the arrangement of the vertical impact simulation assembly and the horizontal impact simulation assembly, the instant impact load encountered by the hydraulic hoist piston rod in actual work, such as water flow impact, sudden blocking of a gate and the like, can be accurately simulated, the defect that the traditional test only focuses on static or stable circulating bending load is overcome, the test environment is more close to the actual working state of the piston rod, and meanwhile, after the test is finished, the piston rod clamped on a clamping seat can be quickly taken out through the cooperation of the vertical impact simulation assembly and the horizontal impact simulation assembly, so that the automatic material taking efficiency is high.
Description
Technical Field
The invention relates to the technical field of hydraulic hoist detection equipment, in particular to a tester for fatigue bending resistance of a hydraulic hoist piston rod.
Background
The hydraulic hoist is a common hoist device in hydraulic engineering, a piston rod of the hydraulic hoist is one of key components, and is subjected to larger axial force and bending force in the working process, so that fatigue bending damage is easy to generate after long-term use, and the normal operation and the service life of the hydraulic hoist are influenced. Therefore, the testing of the fatigue bending resistance of the piston rod of the hydraulic hoist is very important.
The existing fatigue bending resistance testing equipment for the piston rod of the hydraulic hoist has the following defects:
(1) When the hydraulic hoist piston rod actually works, the hydraulic hoist piston rod does not only bear static or stable circulating bending load, but also often encounters transient impact load, such as water flow impact, sudden blocking of a gate and the like. The impact loads can have an important influence on the fatigue life of the piston rod, the traditional fatigue bending resistance test has obvious defects, the traditional test only usually focuses on static or stable circulating bending loads, and the impact factors existing in the actual work are completely ignored, so that the test result has larger deviation from the fatigue life of the piston rod under the actual working condition;
(2) After the anti-fatigue bending test, the piston rod is difficult to take down due to the fact that the extrusion test force is large and is easy to clamp on the clamping seat, and the manual material taking efficiency is low;
(3) The degree of fatigue bending resistance and crack generation of the piston rod can be detected by utilizing the fluorescent liquid to spray on the piston rod in darkness, but the automatic degree of manually spraying the fluorescent liquid to the piston rod is low, the workload is large, and the fluorescent liquid cannot be rapidly air-dried, so that the observation effect is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a testing machine for the fatigue bending resistance of a piston rod of a hydraulic hoist, and solves the problems in the background art.
The testing machine for the fatigue bending resistance of the piston rod of the hydraulic hoist comprises a bottom plate, wherein a vertical impact simulation assembly and a horizontal impact simulation assembly for simulating impact loads in vertical and horizontal directions are arranged above the bottom plate;
the vertical impact simulation assembly comprises a transverse plate arranged above a bottom plate, vertical plates are fixed on two sides of the transverse plate, a plurality of vertical pipes are fixed on the top of the transverse plate, vertical rods are connected to the tops of the vertical pipes in a sliding mode, a pressing plate is fixed between the tops of the vertical rods, a first spring is sleeved on the vertical rods, two Z-shaped plates are fixed on one side of the pressing plate, and an impact rod is fixed on the top of each Z-shaped plate;
The horizontal impact simulation assembly comprises a connecting plate fixed on one side of two vertical plates, a rotating plate is rotatably connected between the opposite sides of the two connecting plates, one side of each vertical plate is fixedly provided with a U-shaped plate, the inside of each U-shaped plate is slidably connected with a plurality of sliding rods, springs III are sleeved on the sliding rods, one end of each sliding rod is fixedly provided with a pull rope, one end of each pull rope is fixedly provided with a connecting ring, one side of each rotating plate is fixedly provided with a plurality of fixing rings, each connecting ring is sleeved and buckled in each fixing ring, the other ends of the plurality of sliding rods are fixedly provided with fixing plates, the bottoms of the fixing plates are fixedly provided with two supporting plates, and one side of each supporting plate is fixedly provided with an impact rod II;
and a driving component is arranged above the bottom plate.
Preferably, the top of bottom plate is fixed with the mount pad, the top of mount pad is fixed with two mount pads, two rotate between the opposite sides of mount pad and be connected with the lead screw, the surface threaded connection of lead screw has the screw seat, the bottom of screw seat is fixed with two slides, the top of mount pad is fixed with two slide rails, the slide slides on the slide rail, one side of screw seat is fixed with the roof, the top of roof is fixed with cylinder one, the output of cylinder one is fixed with presses the clamp, one side of mount pad is fixed with the motor three, the motor three drives the lead screw and rotates.
Preferably, the drive assembly is including fixing the square board in roof bottom, and the top of two risers is all fixed with the bottom of square board, the bottom of square board is fixed with two fixing bases, two rotate between the opposite sides of fixing base and be connected with the bull stick, one side of fixing base is fixed with motor one, motor one drives the bull stick and rotates, be fixed with the cam on the bull stick, the bottom of fixing base is fixed with two sill bars, two sliding connection has H type frame between the surface of sill bar, the top of H type frame is fixed with two otic placode, two rotate between the opposite sides of otic placode and be connected with the gyro wheel, the side surface of cam and the side surface contact extrusion of gyro wheel.
Preferably, the fixing base is fixed with the curb plate with one side of H type frame is all fixed with the spring two between the opposite side of curb plate, one side of fixing base and H type frame is all fixed with and stretches the board, the top stretch the bottom rotation of board and be connected with the pole setting, the one end of bull stick is fixed with the bevel gear one, be fixed with the bevel gear two in the pole setting, bevel gear one with bevel gear two meshing, the below stretch the inside rotation of board and be connected with the pole cover, the one end of pole cover is fixed with the bevel gear three, the bottom of pole setting runs through pole cover and bevel gear three and extends to the outside of bevel gear three, the surface and the interior surface sliding connection of pole cover and bevel gear three of pole setting, rotate between the inner wall of H type frame and be connected with the rotor, be fixed with the bevel gear four in the axis of rotation of rotor, bevel gear three and bevel gear four meshing, be fixed with the limiting plate in the pole setting, the limiting groove has been seted up to the internal surface of pole cover and bevel gear three, and the limiting plate slides in the limiting groove, be fixed with two rows of guide post on the rotor, terminal and the extrusion contact one side of guide post.
Preferably, one side of H type frame is provided with automatic spraying air-drying mechanism, automatic spraying air-drying mechanism is including fixing the L template in H type frame one side, one side of L template rotates and is connected with the drive roller, the curved slot has been seted up on the drive roller, be fixed with bevel gear five in the axis of rotation of drive roller, be fixed with bevel gear six in the axis of rotation of roller, bevel gear five and six meshing of bevel gear, the bottom of L template is fixed with the backup pad, one side of backup pad is fixed with the square column.
Preferably, one end of the square column is rotationally connected with an L-shaped arm through a rotating shaft, one end of the L-shaped arm is fixedly provided with a connecting column, one end of the connecting column extends to the inside of the curved groove and slides in the curved groove, the other end of the L-shaped arm is fixedly provided with a fan plate, one side of the L-shaped arm is fixedly provided with a baffle, one side of the baffle is fixedly provided with a box body, one side of the box body is communicated with a feeding pipe, and the other side of the box body is communicated with a plurality of spray heads.
Preferably, the top of bottom plate is fixed with the riser, the top sliding connection of bottom plate has the slide, be provided with the tight clamping assembly of clamp to the piston rod between the opposite side of riser and slide, the clamping assembly is including fixing the supporting head in slide or riser one side, one side of supporting head is fixed with splint, vertical groove has been seted up to one side of splint, it is connected with two-way screw rod to rotate between the inner wall of vertical groove, the inside sliding connection of vertical groove has two sliders, two sliders are run through to the one end of two-way screw rod and extend to the outside of slider, and the surface of two-way screw rod and the internal surface threaded connection of slider, two one side of slider all is fixed with the holder, the top of splint is fixed with motor two, motor two drives two-way screw rod and rotates.
Preferably, the top of bottom plate has seted up the horizontal groove, the bottom of slide is fixed with moves the piece, move the piece and slide in the horizontal groove, the top of bottom plate is fixed with the frame plate, one side of frame plate is fixed with the cylinder two, the output of cylinder two is fixed with one side of slide.
Advantageous effects
The invention provides a testing machine for the fatigue bending resistance of a piston rod of a hydraulic hoist, which has the following beneficial effects compared with the prior art:
(1) Through the setting of vertical impact simulation subassembly and horizontal impact simulation subassembly, the instantaneous impact load that can accurate simulation hydraulic hoist piston rod encountered in actual work, like circumstances such as rivers impact, gate suddenly block, have compensatied traditional test and only have been concerned with the not enough of static or stable circulation bending load, make the test environment more press close to the true operating condition of piston rod, simultaneously after the test finishes, the cooperation of vertical impact simulation subassembly and horizontal impact simulation subassembly can take out the piston rod of card on the holder fast, and automatic extracting efficiency is high.
(2) Through the setting of drive assembly, utilize the intermittent type of commentaries on classics roller to reciprocate and drive vertical impact simulation subassembly and horizontal impact simulation subassembly intermittent type and work, make vertical impact simulation subassembly and horizontal impact simulation subassembly separately strike the piston rod, help distinguishing vertical force and transverse force to the influence of piston rod fatigue life.
(3) Through the setting of automatic spraying air-drying mechanism, can drive it simultaneously and work when drive assembly during operation, and then utilize the swing of L type arm to evenly spout the piston rod surface with the fluorescent fluid, the swing of reuse fan board is bloied fast air-dries on the piston rod surface, promotes the crack observation effect.
Drawings
FIG. 1 is a perspective view of an external structure of the present invention;
FIG. 2 is a partial structural perspective view of the present invention;
FIG. 3 is a linkage state diagram of the vertical impact simulation assembly, the horizontal impact simulation assembly, the driving assembly and the automatic spraying air drying mechanism of the invention;
FIG. 4 is a perspective view of a drive assembly of the present invention;
FIG. 5 is a perspective view of a vertical impact simulation assembly of the present invention;
FIG. 6 is a perspective view of a horizontal impact simulation assembly of the present invention;
FIG. 7 is a perspective view of an automatic spray air drying mechanism of the present invention;
Fig. 8 is a perspective view of a clamping assembly of the present invention.
In the figure, 1, a bottom plate; 2, a vertical impact simulation assembly; 3, a horizontal impact simulation assembly; 4, a driving assembly, 5, an automatic spraying air drying mechanism, 6, a mounting seat, 7, a screw rod, 8, a threaded seat, 9, a sliding seat, 10, a sliding rail, 11, a top plate, 12, a cylinder I, 13, a pressing clamp, 14, a vertical plate, 15, a sliding plate, 16, a clamping assembly, 17, a transverse groove, 18, a moving block, 19, a frame plate, 20, a cylinder II, 30, a mounting table, 21, a transverse plate, 22, a vertical plate, 23, a vertical pipe, 24, a vertical rod, 25, a pressing plate, 26, a spring I, 27, a Z-shaped plate, 28, an impact rod I, 31, a connecting plate, 32, a rotating plate, 33, a U-shaped plate, 34, a sliding rod, 35, a pull rope, 36, a connecting ring, 37, a fixed ring, 38, a fixed plate, 39, a supporting plate, 310, an impact rod II, 311, a spring III, 41, a square plate, 42, a fixed seat, 43, a rotating rod 44, a motor I, 45, a cam, 46, a bottom rod, 47, an H-shaped frame, 48, a lug plate, 49, a roller, 410, a side plate, 411, a spring II, a vertical rod, 413, a vertical rod, a rotating plate 33, a rotating plate, a supporting plate, a rotating plate, a lifting plate, a lifting, a lifting, a, a.
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. 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.
The embodiment of the invention provides three technical schemes, which specifically comprise the following embodiments:
example 1
Referring to fig. 1, 2,3, 5, 6 and 8, a testing machine for fatigue bending resistance of a hydraulic hoist piston rod comprises a bottom plate 1, a mounting table 30 is fixed at the top of the bottom plate 1, two mounting seats 6 are fixed at the top of the mounting table 30, a screw rod 7 is rotatably connected between opposite sides of the two mounting seats 6, a thread seat 8 is connected to the outer surface of the screw rod 7 in a threaded manner, two sliding seats 9 are fixed at the bottom of the thread seat 8, two sliding rails 10 are fixed at the top of the mounting table 30, the sliding seats 9 slide on the sliding rails 10, a top plate 11 is fixed at one side of the thread seat 8, a first cylinder 12 is fixed at the top of the top plate 11 and controlled by an external switch and electrically connected with an external power supply, a pressing clamp 13 is fixed at the output end of the first cylinder 12 and is used for driving the piston rod to press and bend downwards, the anti-fatigue bending test can be carried out on the piston rod, a pressure sensor is arranged on the pressing clamp 13 and is electrically connected with an external computer through a wire, the pressure sensor can transmit extrusion force data on the pressing clamp 13 to the external computer, the computer calculates and displays the current pressure data on a display screen, a motor III is fixed on one side of the mounting seat 6 and is a three-phase asynchronous motor, forward and reverse rotation can be carried out, the motor III is controlled by an external switch and is electrically connected with an external power supply, the motor III drives the screw rod 7 to rotate, the output end of the motor III is fixed with one end of the screw rod 7 through a coupler, and a vertical impact simulation assembly 2 and a horizontal impact simulation assembly 3 for simulating impact loads in vertical and horizontal directions are arranged above the bottom plate 1;
The vertical impact simulation assembly 2 comprises a transverse plate 21 arranged above a bottom plate 1, vertical plates 22 are fixed on two sides of the transverse plate 21, a plurality of vertical pipes 23 are fixed on the top of the transverse plate 21, vertical rods 24 are connected to the top ends of the vertical pipes 23 in a sliding mode, the bottom ends of the vertical rods 24 extend to the inside of the vertical pipes 23, a pressing plate 25 is fixed between the top ends of the plurality of vertical rods 24, a first spring 26 is sleeved on the vertical rods 24, the top end of the first spring 26 is fixed with the bottom of the pressing plate 25, the bottom end of the first spring 26 is fixed with the top end of the vertical pipe 23, two Z-shaped plates 27 are fixed on one side of the pressing plate 25, an impact rod 28 is fixed on the top of the Z-shaped plates 27, and the top end of the impact rod 28 is in contact extrusion with the bottom of a piston rod;
the horizontal impact simulation assembly 3 comprises a connecting plate 31 fixed on one side of two vertical plates 22, a rotating plate 32 is rotatably connected between opposite sides of the two connecting plates 31, one side of the two vertical plates 22 is fixedly provided with a U-shaped plate 33, the inside of the U-shaped plate 33 is slidably connected with a plurality of slide bars 34, a spring III 311 is sleeved on the slide bars 34, one end of the spring III 311 is fixedly connected with one side of the U-shaped plate 33, the other end of the spring III 311 is fixedly connected with one side of a fixed plate 38, one end of the slide bar 34 is fixedly provided with a pull rope 35, one end of the pull rope 35 is fixedly provided with a connecting ring 36, one side of the rotating plate 32 is fixedly provided with a plurality of fixed rings 37, the connecting ring 36 is sleeved and buckled in the fixed rings 37, the other end of the plurality of slide bars 34 is fixedly provided with a fixed plate 38, the bottom of the fixed plate 38 is fixedly provided with two supporting plates 39, one side of the supporting plates 39 is fixedly provided with a second impact bar 310, and one end of the second impact bar 310 is in contact extrusion with one side of a piston rod.
Through the setting of vertical impact simulation subassembly 2 and horizontal impact simulation subassembly 3, the instantaneous impact load that can accurate simulation hydraulic hoist piston rod encountered in actual work, like circumstances such as rivers impact, gate suddenly block, have compensatied traditional test and only have been concerned with the not enough of static or stable circulation bending load, make the test environment more press close to the true operating condition of piston rod, after the test is accomplished simultaneously, the cooperation of vertical impact simulation subassembly and horizontal impact simulation subassembly can take out the piston rod of card on the holder fast, and automatic extracting efficiency is high.
The top of bottom plate 1 is fixed with riser 14, the top sliding connection of bottom plate 1 has slide 15, be provided with the tight clamping assembly 16 of piston rod clamp between the opposite sides of riser 14 and slide 15, clamping assembly 16 is including fixing the supporting head 161 in slide 15 or riser 14 one side, one side of supporting head 161 is fixed with splint 162, vertical slot 163 has been seted up to one side of splint 162, rotate between the inner wall of vertical slot 163 and be connected with two-way screw 164, the inside sliding connection of vertical slot 163 has two sliders 165, can drive two sliders 165 and move in opposite directions or dorsad when two-way screw 164 rotates, two-way screw 164's one end runs through two sliders 165 and extends to the outside of slider 165, and two-way screw 164's surface and the internal surface threaded connection of slider 165, two-way screw 165's one side all is fixed with anchor 166, splint 162's top is fixed with motor two 167, motor two 167 is three-phase asynchronous motor, can be just reversing, controlled by external switch, and with external power supply electrical connection, motor two 167 drive two-way screw 164 rotate, the output of motor two 167 is fixed with the top of two-way screw 164 through the coupler.
The top of the bottom plate 1 is provided with a transverse groove 17, the bottom of the sliding plate 15 is fixedly provided with a moving block 18, the moving block 18 is matched with the size of the transverse groove 17, the moving block 18 slides in the transverse groove 17, the top of the bottom plate 1 is fixedly provided with a frame plate 19, one side of the frame plate 19 is fixedly provided with a second cylinder 20, the second cylinder 20 is controlled by an external switch and is electrically connected with an external power supply, and the output end of the second cylinder 20 is fixed with one side of the sliding plate 15.
Example 2
Based on embodiment 1, referring to fig. 3-4, a driving assembly 4 is disposed above the bottom plate 1, the driving assembly 4 includes a square plate 41 fixed at the bottom of the top plate 11, the tops of the two vertical plates 22 are both fixed with the bottom of the square plate 41, two fixing seats 42 are fixed at the bottom of the square plate 41, a rotating rod 43 is rotatably connected between opposite sides of the two fixing seats 42, a motor 44 is fixed at one side of the fixing seat 42, the motor 44 is controlled by an external switch and electrically connected with an external power supply, the motor 44 drives the rotating rod 43 to rotate, a cam 45 is fixed on the rotating rod 43, two bottom rods 46 are fixed at the bottom of the fixing seat 42, an H-shaped frame 47 is slidably connected between the outer surfaces of the two bottom rods 46, two lugs 48 are fixed at the top of the H-shaped frame 47, a roller 49 is rotatably connected between opposite sides of the two lugs 48, and a side surface of the cam 45 is in contact extrusion with a side surface of the roller 49.
The side plates 410 are fixed on one sides of the fixing seat 42 and the H-shaped frame 47, the springs II 411 are fixed between the opposite sides of the two side plates 410, the springs II 411 are used for assisting the H-shaped frame 47 to reset upwards, the extension plates 412 are fixed on one sides of the fixing seat 42 and the H-shaped frame 47, the vertical rods 418 are rotatably connected between the inner walls of the fixing seat 42 and the H-shaped frame 47, the first bevel gears 414 are fixed on one ends of the rotating rods 43, the second bevel gears 415 are fixed on the vertical rods 413, the first bevel gears 414 are meshed with the second bevel gears 415, the rod sleeves 416 are rotatably connected inside the lower extension plates 412, the third bevel gears 417 are fixed on one ends of the rod sleeves 416, the bottom ends of the vertical rods 413 penetrate through the rod sleeves 416 and the third bevel gears 417 and extend to the outer portions of the third bevel gears 417, the outer surfaces of the rod sleeves 413 are slidably connected with the inner surfaces of the rod sleeves 416 and the third bevel gears 417, the vertical rods 413 are rotatably connected between the inner walls of the rod sleeves 416 and the third bevel gears 417, the rotating shafts 418 are rotatably connected with the rotating rolls 418, the rotating shafts of the rotating rolls 43 are fixedly arranged on the rotating shafts of the rotating racks, the third bevel gears 417 are meshed with the fourth bevel gears, the limiting plates 420 are fixedly arranged on the vertical rods 413, the inner ends of the rod sleeves 416 are meshed with the rotating shafts of the rotating shafts, the rotating plates, the inner ends of the rotating plates are rotatably and the limiting plates 420 are in contact with the limiting plates 421, and the inner ends of the limiting plates 421 are in contact with the limiting plates, and the limiting plates 421, and are in contact with the inner ends of the limiting plates 421, and are in the limiting plates, and are in contact with the limiting plates of the end of the limiting plates of the rotating plates 420.
Through the setting of drive assembly 4, utilize the intermittent type of revolving roller 418 to reciprocate drive vertical impact simulation subassembly 2 and horizontal impact simulation subassembly 3 intermittent type to work, make vertical impact simulation subassembly 2 and horizontal impact simulation subassembly 3 separately strike the piston rod, help distinguishing vertical force and lateral force to the influence of piston rod fatigue life.
Example 3
On the basis of embodiment 2, referring to fig. 7, an automatic spraying air drying mechanism 5 is arranged on one side of the H-shaped frame 47, the automatic spraying air drying mechanism 5 comprises an L-shaped plate 51 fixed on one side of the H-shaped frame 47, a driving roller 52 is rotatably connected to one side of the L-shaped plate 51, a curved groove 53 is formed in the driving roller 52, a bevel gear five 54 is fixed on the rotating shaft of the driving roller 52, a bevel gear six 55 is fixed on the rotating shaft of the rotating roller 418, the bevel gear five 54 is meshed with the bevel gear six 55, a supporting plate 56 is fixed on the bottom of the L-shaped plate 51, and a square column 57 is fixed on one side of the supporting plate 56.
One end of square column 57 is rotatably connected with L-shaped arm 58 through the pivot, one end of L-shaped arm 58 is fixed with spliced pole 59, the one end of spliced pole 59 extends to the inside of curved groove 53, and spliced pole 59 slides in curved groove 53, the other end of L-shaped arm 58 is fixed with fan plate 510, one side of L-shaped arm 58 is fixed with baffle 511, one side of baffle 511 is fixed with box 512, be equipped with the fluorescent fluid in box 512, one side intercommunication of box 512 has inlet pipe 513, outside fluorescent fluid is led into box 512 through inlet pipe 513, install the valve on the inlet pipe 513, the opposite side intercommunication of box 512 has a plurality of shower nozzles 514, shower nozzle 514 receives outside switch control, and with external power source electric connection, can spout the fluorescent fluid in the box 512 to the piston rod surface after shower nozzle 514 starts.
Through the setting of automatic spraying air-drying mechanism 5, can drive it to work in step when drive assembly 4 during operation, and then utilize the swing of L type arm 58 to evenly spout the piston rod surface with the fluorescent fluid, the swing of reuse fan board 510 is bloied fast and is air-dried on the piston rod surface, promotes the crack observation effect.
And all that is not described in detail in this specification is well known to those skilled in the art.
In operation, the cylinder II 20 is started according to the length of the piston rod to adjust the distance between the vertical plate 14 and the sliding plate 15, the piston rod is placed between the two clamping assemblies 16, the motor II 167 is started to drive the bidirectional screw rod 164 to rotate, the two clamping seats 166 are further driven to clamp the piston rod, the motor III is started to drive the screw rod 7 to rotate, the threaded seat 8 is further driven to transversely move, the cylinder I12 is started, the cylinder I12 drives the pressing clamp 13 to press the piston rod, the piston rod is subjected to bending test, the pressing force is transmitted to the pressure sensor on the pressing clamp 13, the pressure sensor transmits pressure data to an external computer, thereby testing the fatigue bending degree data of the piston rod, the motor I44 is started, the motor I44 drives the rotating rod 43 to rotate, the rotating rod 43 drives the cam 45 to rotate, the cam 45 presses the roller to drive the H-shaped frame 47 to move up and down, and then the rotating roller 418 is driven to rotate by the cooperation of the third bevel gear 417 and the fourth bevel gear 419, when the rotating roller 418 moves downwards, the guide post 421 presses the pressing plate 25, meanwhile, the compression spring 26 is extruded, the spring 26 drives the impact rod one 28 to store force, when the guide post 421 rotates to be separated from the pressing plate 25, the impact rod one 28 impacts the bottom of the piston rod upwards, so that the impact load is simulated in the vertical direction, when the rotating roller 418 moves upwards, the guide post 421 extrudes the rotating plate 32, when the rotating plate 32 rotates, the pull rope 35 is driven to pull the slide rod 34 to move, and then the compression spring three 311 drives the impact rod two 310 to store force, when the guide post 421 rotates to be separated from the rotating plate 32, the impact rod two 310 impacts and vibrates the piston rod, so that the impact load is simulated in the horizontal direction, the rotating roller 418 synchronously drives the driving roller 52 to rotate when rotating, and further drives the connecting post 59 to slide in the bending groove 53, further, the L-shaped arm 58 is driven to swing around the rotating shaft, the spray head 514 is started to spray the fluorescent liquid in the box 512 on the piston rod, the fan plate 510 is synchronously driven to swing along with the swing of the L-shaped arm 58, the fan plate 510 is utilized to fan out wind, the air flow is accelerated, the fluorescent liquid is enabled to be rapidly air-dried, the piston rod can observe the luminous condition of the fluorescent liquid in a dark environment, whether the piston rod generates cracks or not is judged, obvious crack lines are generated at the cracks, the fluorescent liquid cannot completely enter the cracks, the smooth surface of the piston rod is inconsistent with the fluorescent liquid content at the cracks, the generation condition of the cracks can be rapidly judged, when the piston rod needs to be taken down after the test is finished, the clamping seat 166 is loosened, the piston rod is ejected out of the clamping groove by utilizing the upward impact force of the impact rod one 28, and further the material taking is pushed out by the transverse force of the impact rod two 310.
The foregoing detailed description of the embodiments of the invention has been provided for the purpose of illustrating the preferred embodiments of the invention and is not to be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511061465.2A CN120558759A (en) | 2025-07-31 | 2025-07-31 | A testing machine for fatigue bending performance of piston rod of hydraulic hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511061465.2A CN120558759A (en) | 2025-07-31 | 2025-07-31 | A testing machine for fatigue bending performance of piston rod of hydraulic hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120558759A true CN120558759A (en) | 2025-08-29 |
Family
ID=96821678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202511061465.2A Withdrawn CN120558759A (en) | 2025-07-31 | 2025-07-31 | A testing machine for fatigue bending performance of piston rod of hydraulic hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120558759A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121409719A (en) * | 2025-12-30 | 2026-01-27 | 四川省科源建设工程质量检测鉴定有限公司 | A device for testing the bending strength of buried pipelines in water conservancy projects. |
-
2025
- 2025-07-31 CN CN202511061465.2A patent/CN120558759A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121409719A (en) * | 2025-12-30 | 2026-01-27 | 四川省科源建设工程质量检测鉴定有限公司 | A device for testing the bending strength of buried pipelines in water conservancy projects. |
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Application publication date: 20250829 |
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| WW01 | Invention patent application withdrawn after publication |