CN114993863A - Metal fatigue resistance performance detection device - Google Patents
Metal fatigue resistance performance detection device Download PDFInfo
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- CN114993863A CN114993863A CN202210625041.4A CN202210625041A CN114993863A CN 114993863 A CN114993863 A CN 114993863A CN 202210625041 A CN202210625041 A CN 202210625041A CN 114993863 A CN114993863 A CN 114993863A
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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
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
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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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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a metal fatigue resistance performance detection device, which comprises a base, and a clamp assembly and a detection assembly which are respectively arranged on the base; an inverted U-shaped frame is arranged on the base; the detection assembly comprises a driving motor, a motor side crank, a planetary gear, an inner gear ring, a gear side crank, a connecting rod, a piston, a guide seat, an installation rod and a hammer head, an output shaft of the driving motor is fixedly connected with the motor side crank, one end of the motor side crank is rotatably connected with the axis of the planetary gear, the planetary gear is meshed with the inner gear ring, one end of the gear side crank is fixedly connected with the axis of the planetary gear, the other end of the gear side crank is rotatably connected with one end of the connecting rod, a first sliding groove arranged along the vertical central line of the inner gear ring is formed in one side of the guide seat, the piston is slidably arranged in the first sliding groove, the other end of the connecting rod penetrates through the transverse wall of the U-shaped frame to be rotatably connected with the top of the piston, the bottom of the piston is fixedly connected with the installation rod, and the bottom of the installation rod is fixedly connected with the hammer head.
Description
Technical Field
The invention relates to the technical field of metal detection, in particular to a metal fatigue resistance detection device.
Background
The metal fatigue refers to a process that a material or a component gradually generates local permanent accumulated damage at one or more positions under the action of cyclic stress or cyclic strain, and cracks or complete fracture suddenly occurs after a certain number of cycles. When a material or structure is subjected to repeated load, the stress value does not exceed the strength limit of the material, and even the stress value is lower than the elastic limit, so that the material or structure can be damaged.
Therefore, in order to produce safety, the fatigue resistance performance of the metal tube needs to be detected frequently, at present, most of common fatigue resistance detection devices adopt a simple crank structure to drive the hammer body to hammer the metal tube, namely, the crank drives the connecting rod and the piston to drive the hammer body, but the simple structure that the crank directly drives the connecting rod and the piston to drive the hammer body easily generates radial force at the piston, so that the device generates large vibration, and the error of a detection result is easy to cause to be overlarge.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a metal fatigue resistance detection device.
The technical scheme adopted by the invention is as follows:
a metal fatigue resistance performance detection device comprises a base, a clamp assembly and a detection assembly, wherein the clamp assembly is arranged on the base and used for fixing a metal pipe, and the detection assembly is used for detecting the force applied to the metal pipe; the base is provided with an inverted U-shaped frame, and the bottom ends of two longitudinal walls of the U-shaped frame are fixedly connected with the top of the base; the detection assembly comprises a driving motor, a motor side crank, a planetary gear, an inner gear ring, a gear side crank, a connecting rod, a piston, a guide seat, an installation rod and a hammer head, wherein the driving motor is fixedly arranged at the top of the transverse wall of the U-shaped frame, the inner gear ring is fixedly arranged at the top of the transverse wall of the U-shaped frame and is positioned on one side of an output shaft of the driving motor, the output shaft of the driving motor is fixedly connected with the motor side crank, one end of the motor side crank is rotationally connected with the axis of the planetary gear, the planetary gear is meshed with the inner gear ring, one end of the gear side crank is fixedly connected with the axis of the planetary gear, the other end of the gear side crank is rotationally connected with one end of the connecting rod, the diameter of the inner gear ring is twice that of the planetary gear, and the rotational axis of the connecting rod rotationally connected with the gear side crank is positioned on a dividing circle of the planetary gear, the guide seat is vertically and fixedly arranged at the bottom of the transverse wall of the U-shaped frame, a first chute arranged along the vertical center line of the inner gear ring is formed in one side of the guide seat, the piston is arranged in the first chute in a sliding manner, the other end of the connecting rod penetrates through the transverse wall of the U-shaped frame and is rotatably connected with the top of the piston, a abdicating hole matched with the connecting rod is formed in the transverse wall of the U-shaped frame, the bottom of the piston is fixedly connected with an installation rod, and the bottom of the installation rod is fixedly connected with a hammer head; the clamp assembly is fixedly arranged at the top of the base and is positioned below the hammer head.
Preferably, the anchor clamps subassembly includes mount pad, fixed block, sliding block and anchor clamps, the fixed top of locating the base of mount pad, the second spout has been seted up at the top of mount pad, the fixed one end of locating the second spout, the sliding block slides and locates the other end of second spout, the side that fixed block and sliding block are relative is equipped with anchor clamps respectively.
Preferably, a screw rod is arranged in the second sliding groove, one end of the screw rod is rotatably connected with the lower portion of the fixing block, the other end of the screw rod is in threaded connection with the lower portion of the sliding block and penetrates through the side wall of the mounting seat to extend to the outer side of the mounting seat, the other end of the screw rod is rotatably connected with the mounting seat, and a handle is fixedly connected to the portion, exposed out of the mounting seat, of the other end of the screw rod.
Preferably, anchor clamps include (holding) chuck, splint and press from both sides tight post, one side of (holding) chuck rotates through pivot and fixed block and the relative one side of sliding block respectively and is connected, the one end of the pivot on the (holding) chuck that the fixed block corresponds is run through behind the fixed block through drive assembly and driving motor's output shaft transmission and is connected, the lateral wall equipartition of (holding) chuck is run through and is equipped with a plurality of tight posts that press from both sides along the radial setting of (holding) chuck, press from both sides the lateral wall sliding connection of tight post and (holding) chuck, press from both sides tight post and be located the inboard one end fixedly connected with splint of (holding) chuck, press from both sides the one end fixedly connected with baffle that tight post is located the (holding) chuck outside, be connected with the spring between the lateral wall of baffle and (holding) chuck.
Preferably, the transmission assembly comprises a worm wheel, a transmission shaft, a driving bevel gear and a driven bevel gear, a part of an output shaft of the driving motor is a worm, the worm wheel is meshed with the worm and connected, the top end of the transmission shaft is fixedly connected with the axis of the worm wheel, the bottom end of the transmission shaft penetrates through the transverse wall of the U-shaped frame and is rotatably connected with the transverse wall of the U-shaped frame, the bottom end of the transmission shaft is fixedly connected with the driving bevel gear, the driving bevel gear is meshed with the driven bevel gear, and one end of the rotating shaft corresponding to the fixing block is fixedly connected with the axis of the driven bevel gear.
Preferably, the axle center department and the fixed block of driven bevel gear, pivot, (holding) chuck and the sliding block correspond the position and set up the cavity that runs through of mutual intercommunication, the inside wall of cavity is equipped with the internal thread, cavity threaded connection has the threaded rod, the one end of threaded rod extends to in the (holding) chuck and fixedly connected with toper chuck, the other end of threaded rod extends to outside the cavity and fixedly connected with handle.
Preferably, the bottom of the hammer head is rotatably connected with a roller.
Preferably, be equipped with film pressure sensor between tup and the installation pole, the fixed display screen that is equipped with on the base, film pressure sensor passes through wire signal connection with the display screen.
The invention has the beneficial effects that:
1. the driving motor drives the connecting rod to drive the hammer head to hammer the metal pipe by the aid of the motor side crank under the matching of the inner gear ring, the planetary gear and the gear side crank, and detection is finished;
2. the metal pipes are fixed through the clamp, and the distance between the sliding block and the fixed block can be adjusted to adapt to the metal pipes with different lengths, so that the metal pipes are convenient to install;
3. the same driving motor drives the hammer to hammer the metal pipe and drives the metal pipe to rotate at the same time, so that the cost of the device is reduced;
4. for the metal pipe that the diameter is great, the accessible splint are followed peripheral centre gripping, and for the metal pipe that the diameter is less, accessible toper chuck is followed interior centre gripping, and application scope is wide.
Drawings
FIG. 1 is a schematic diagram of a conventional crank-link mechanism and its operation;
FIG. 2 is a schematic front view of an embodiment of the present invention;
FIG. 3 is a schematic diagram of a right-view structure of a detecting assembly according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the front view structure and the operation of the clamp assembly in the embodiment of the present invention;
reference numerals: 1. the device comprises a crank, 2, a connecting rod, 3, a piston, 4, a base, 5, a 'U' -shaped frame, 6, a driving motor, 7, a motor-side crank, 8, a planetary gear, 9, an inner gear ring, 10, a gear-side crank, 11, a connecting rod, 12, a piston, 13, a guide seat, 14, a mounting rod, 15, a hammer head, 16, a mounting seat, 17, a fixing block, 18, a sliding block, 19, a screw rod, 20, a handle, 21, a chuck, 22, a clamping plate, 23, a clamping column, 24, a rotating shaft, 25, a baffle, 26, a spring, 27, a first bevel gear, 28, a second bevel gear, 29, a transmission shaft, 30, a driving bevel gear, 31, a driven bevel gear, 32, a threaded rod, 33, a conical chuck, 34, a roller, 35, a film pressure sensor, 36 and a display screen.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 2, a metal fatigue resistance detection device comprises a base 4, and a clamp assembly and a detection assembly, which are respectively arranged on the base 4, for fixing a metal tube, and for detecting the force applied to the metal tube; the base 4 is provided with an inverted U-shaped frame 5, and the bottom ends of two longitudinal walls of the U-shaped frame 5 are fixedly connected with the top of the base 4; the detection assembly comprises a driving motor 6, a motor side crank 7, a planetary gear 8, an inner gear ring 9, a gear side crank 10, a connecting rod 11, a piston 12, a guide seat 13, a mounting rod 14 and a hammer 15, wherein the driving motor 6 is fixedly arranged at the top of the transverse wall of the U-shaped frame 5, the inner gear ring 9 is fixedly arranged at the top of the transverse wall of the U-shaped frame 5 and is positioned at one side of an output shaft of the driving motor 6, the output shaft of the driving motor 6 is fixedly connected with the motor side crank 7, one end of the motor side crank 7 is rotatably connected with the axis of the planetary gear 8, the planetary gear 8 is in meshed connection with the inner gear ring 9, one end of the gear side crank 10 is fixedly connected with the axis of the planetary gear 8, the other end of the gear side crank 10 is rotatably connected with one end of the connecting rod 11, and the diameter of the inner gear ring 9 is twice the diameter of the planetary gear 8, the rotation axis of the connecting rod 11 rotatably connected with the gear side crank 10 is located on a reference circle of the planetary gear 8, the guide seat 13 is vertically and fixedly arranged at the bottom of a transverse wall of the U-shaped frame 5, one side of the guide seat 13 is provided with a first sliding chute arranged along a vertical central line of the inner gear ring 9, the piston 12 is slidably arranged in the first sliding chute, the other end of the connecting rod 11 penetrates through the transverse wall of the U-shaped frame 5 to be rotatably connected with the top of the piston 12, a yielding hole matched with the connecting rod 11 is formed in the transverse wall of the U-shaped frame 5, the bottom of the piston 12 is fixedly connected with an installation rod 14, and the bottom of the installation rod 14 is fixedly connected with a hammer 15; the clamp assembly is fixedly arranged at the top of the base 4 and is positioned below the hammer head 15.
As shown in fig. 1, in a conventional crank 1 and connecting rod 2 mechanism, one end of a crank 1 is fixed, and the other end of the crank 1 performs circular motion to drive one end of a connecting rod 2, so as to drive the other end of the connecting rod 2 to perform linear motion, a linear motion path of a piston 3 is taken as a center line, the positions of one ends of the connecting rod 2 are alternated on two sides of the center line, when an included angle exists between the connecting rod 2 and the center line, a radial acting force is generated on the piston 3, the direction of the acting force is alternated, vibration is generated, and meanwhile, part of energy provided by the crank 1 is consumed inefficiently.
The crank-link mechanism is improved by arranging the inner gear ring 9 and the planet gear 8, wherein the diameter of the inner gear ring 9 is twice of that of the planet gear 8, one end of the gear side crank 10 is fixedly connected with the axis of the planet gear 8, the rotating axis of the connecting rod 11 in rotating connection with the gear side crank 10 is positioned on the pitch circle of the planet gear 8, and when the axis of the planet gear 8 and the axis of the inner gear ring 9 are positioned on the same horizontal plane, the rotating axis of the connecting rod 11 in rotating connection with the gear side crank 10 is positioned at the circle center of the inner gear ring 9. Therefore, when the driving motor 6 drives the planet gear 8 to rotate in the inner gear ring 9 through the motor side crank 7, the rotating axis of the connecting rod 11 connected with the gear side crank 10 in a rotating mode moves up and down along the vertical central line of the inner gear ring 9, and the other end of the connecting rod 11 and the piston 12 also move up and down along the vertical central line of the inner gear ring 9, so that the whole connecting rod 11 can move up and down along the vertical central line of the inner gear ring 9, the force in the radial direction generated at the piston 12 is greatly reduced, vibration is greatly reduced, and the ineffective consumption of the energy of the driving motor 6 is also reduced. The improved crank-link mechanism drives the hammer head 15 to hammer the metal pipe fixed by the clamp assembly, so that the fatigue resistance performance detection of the metal material is completed, and the whole device has good vibration reduction effect and high energy utilization rate. For the weight of balanced motor side crank 7 both sides, further reduce the vibration, still can set up the balancing weight at motor side crank 7 for the other end of connecting planetary gear 8, the weight of balancing weight is in order to satisfy motor side crank 7 both ends load phase-match and be preferred.
In one embodiment, the clamp assembly includes a mounting seat 16, a fixed block 17, a sliding block 18 and a clamp, the mounting seat 16 is fixedly disposed at the top of the base 4, a second sliding groove is formed in the top of the mounting seat 16, the fixed block 17 is fixedly disposed at one end of the second sliding groove, the sliding block 18 is slidably disposed at the other end of the second sliding groove, and opposite side surfaces of the fixed block 17 and the sliding block 18 are respectively provided with the clamp.
The metal pipe is fixed by the two fixtures on the fixed block 17 and the sliding block 18, and the distance between the sliding block 18 and the fixed block 17 can be adjusted by moving the sliding block, so that the metal pipe can be conveniently installed into the two fixtures, and meanwhile, the metal pipe fixing device can also adapt to metal pipes with different lengths.
In one embodiment, a screw rod 19 is arranged in the second sliding slot, one end of the screw rod 19 is rotatably connected with the lower part of the fixed block 17, the other end of the screw rod 19 is in threaded connection with the lower part of the sliding block 18 and extends to the outside of the mounting seat 16 through the side wall of the mounting seat 16, the other end of the screw rod 19 is rotatably connected with the mounting seat 16, and a handle 20 is fixedly connected to the part of the other end of the screw rod 19, which is exposed out of the mounting seat 16. The position of the slide block 18 can be moved by rotating the screw rod 19 by the handle 20.
In one embodiment, the fixture comprises a chuck plate 21, a clamping plate 22 and clamping columns 23, one side of the chuck plate 21 is rotatably connected with one side of the fixing block 17 and the side of the sliding block 18 through a rotating shaft 24, one end of the rotating shaft 24 on the chuck plate 21 corresponding to the fixing block 17 penetrates through the fixing block 17 and then is in transmission connection with an output shaft of the driving motor 6 through a transmission assembly, a plurality of clamping columns 23 arranged along the radial direction of the chuck plate 21 are uniformly distributed and penetrate through the side wall of the chuck plate 21, the clamping columns 23 are in sliding connection with the side wall of the chuck plate 21, one end, located on the inner side of the chuck plate 21, of each clamping column 23 is fixedly connected with the clamping plate 22, one end, located on the outer side of the chuck plate 21, of each clamping column 23 is fixedly connected with a baffle plate 25, and a spring 26 is connected between each baffle plate 25 and the side wall of the chuck plate 21.
When fixing the metal tube, firstly moving the sliding block 18 to make a sufficient distance between the sliding block and the fixed block 17, pulling out the clamping column 23 on the chuck 21 of the fixed block 17, setting the baffle plate 25 to be convenient for pulling the clamping column 23, then putting one end of the metal tube into the chuck 21 of the fixed block 17, then loosening the clamping column 23, then pulling out the clamping column 23 on the chuck 21 of the sliding block 18, moving the sliding block 18 towards the fixed block 17, making the other end of the metal tube enter the chuck 21 of the sliding block 18, finally loosening the clamping column 23 on the chuck 21 of the sliding block 18, and pressing the clamping plate 22 by the spring 26 to fix the metal tube.
In one embodiment, the transmission assembly includes a worm wheel, a transmission shaft 29, a driving bevel gear 30 and a driven bevel gear 31, a part of an output shaft of the driving motor 6 is a worm, the worm wheel is engaged with the worm, a top end of the transmission shaft 29 is fixedly connected with an axis of the worm wheel, a bottom end of the transmission shaft 29 penetrates through a transverse wall of the U-shaped frame 5 and is rotatably connected with the transverse wall of the U-shaped frame 5, the bottom end of the transmission shaft 29 is fixedly connected with the driving bevel gear 30, the driving bevel gear 30 is engaged with the driven bevel gear 31, and one end of the rotating shaft 24 corresponding to the fixing block 17 is fixedly connected with an axis of the driven bevel gear 31.
Drive the tubular metal resonator rotation when driving tup 15 at driving motor 6's output shaft through drive assembly, realize the hammering to the tubular metal resonator different positions, avoid tup 15 to hammer in same department all the time, improve and detect the precision, also save the power supply simultaneously, practice thrift the cost. The first bevel gear 27 on the output shaft of the driving motor 6 drives the second bevel gear 28 to rotate, then drives the transmission shaft 29, the driving bevel gear 30 and the driven bevel gear 31, and finally drives the rotating shaft 24 and the chuck 21 on the fixed block 17 to rotate, so as to realize the rotation of the metal pipe.
In one embodiment, the driven bevel gear 31, the rotating shaft 24, the axis of the chuck 21 and the corresponding positions of the fixed block 17 and the sliding block 18 are provided with through cavities which are communicated with each other, inner side walls of the cavities are provided with internal threads, the cavities are in threaded connection with a threaded rod 32, one end of the threaded rod 32 extends into the chuck 21 and is fixedly connected with a conical chuck 33, and the other end of the threaded rod 32 extends out of the cavities and is fixedly connected with a handle 20.
The threaded rod 32, which is screwed into the cavity, is used to adjust the position of the tapered collet 33, and when the outer diameter of the metal pipe is small, the clamping plates 22 may not completely clamp the metal pipe due to the interference therebetween, in which case the metal pipe can be fixed from the inside by the tapered collet 33. When the tapered collet 33 needs to be used, the sliding block 18 is moved to enable the sliding block to have enough distance with the fixed block 17, the threaded rod 32 on one side of the fixed block 17 is rotated by the handle 20 to enable the tapered collet 33 to extend out, one end of the metal tube is sleeved on the tapered collet 33 on one side of the fixed block 17, then the threaded rod 32 on one side of the sliding block 18 is rotated by the handle 20 to enable the tapered collet 33 to extend out, then the sliding block 18 is moved towards the fixed block 17, and the tapered collet 33 on one side of the sliding block 18 enters the other end of the metal tube to fix the metal tube.
In one embodiment, a roller 34 is rotatably connected to the bottom of the hammer head 15.
The hammering force of the hammer head 15 can be converted into friction force by the roller 34 in the rotating process of the metal pipe, and the detection precision is improved.
In one embodiment, a film pressure sensor 35 is arranged between the hammer head 15 and the mounting rod 14, a display screen 36 is fixedly arranged on the base 4, and the film pressure sensor 35 is in signal connection with the display screen 36 through a wire.
The metal rod is continuously hammered through the hammer head 15 to cause the metal rod to generate bending fatigue damage, the maximum radial load which can be borne by the metal rod can be measured through the film pressure sensor 35, the hammering force of the hammer head 15 can be adjusted through the driving motor 6, the hammering speed of the hammer head 15 can be changed, and the data measured by the film pressure sensor 35 can be displayed through the display.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. The metal fatigue resistance performance detection device is characterized by comprising a base (4), and a clamp assembly and a detection assembly, wherein the clamp assembly is arranged on the base (4) and used for fixing a metal pipe, and the detection assembly is used for detecting the force application of the metal pipe; the base (4) is provided with an inverted U-shaped frame (5), and the bottom ends of two longitudinal walls of the U-shaped frame (5) are fixedly connected with the top of the base (4); the detection assembly comprises a driving motor (6), a motor side crank (7), a planetary gear (8), an inner gear ring (9), a gear side crank (10), a connecting rod (11), a piston (12), a guide seat (13), an installation rod (14) and a hammer head (15), the driving motor (6) is fixedly arranged at the top of the transverse wall of the U-shaped frame (5), the inner gear ring (9) is fixedly arranged at the top of the transverse wall of the U-shaped frame (5) and is positioned at one side of the output shaft of the driving motor (6), the output shaft of the driving motor (6) is fixedly connected with the motor side crank (7), one end of the motor side crank (7) is rotatably connected with the axis of the planetary gear (8), the planetary gear (8) is meshed with the inner gear ring (9), one end of the gear side crank (10) is fixedly connected with the axis of the planetary gear (8), the other end of the gear side crank (10) is rotationally connected with one end of a connecting rod (11), the diameter of the inner gear ring (9) is twice that of the planet gear (8), the rotating axis of the connecting rod (11) rotationally connected with the gear side crank (10) is positioned on a graduated circle of the planet gear (8), the guide seat (13) is vertically and fixedly arranged at the bottom of the transverse wall of the U-shaped frame (5), one side of the guide seat (13) is provided with a first sliding chute arranged along the vertical central line of the inner gear ring (9), the piston (12) is slidably arranged in the first sliding chute, the other end of the connecting rod (11) penetrates through the transverse wall of the U-shaped frame (5) to be rotationally connected with the top of the piston (12), the transverse wall of the U-shaped frame (5) is provided with a abdicating hole matched with the connecting rod (11), and the bottom of the piston (12) is fixedly connected with a mounting rod (14), the bottom of the mounting rod (14) is fixedly connected with a hammer head (15); the clamp assembly is fixedly arranged at the top of the base (4) and is positioned below the hammer head (15).
2. The metal fatigue resistance detection device of claim 1, wherein the clamp assembly comprises a mounting seat (16), a fixed block (17), a sliding block (18) and a clamp, the mounting seat (16) is fixedly arranged at the top of the base (4), a second sliding groove is formed in the top of the mounting seat (16), the fixed block (17) is fixedly arranged at one end of the second sliding groove, the sliding block (18) is slidably arranged at the other end of the second sliding groove, and opposite sides of the fixed block (17) and the sliding block (18) are respectively provided with the clamp.
3. The metal fatigue resistance detection device according to claim 1, wherein a lead screw (19) is arranged in the second sliding groove, one end of the lead screw (19) is rotatably connected with the lower part of the fixed block (17), the other end of the lead screw (19) is in threaded connection with the lower part of the sliding block (18) and extends to the outer side of the mounting seat (16) through the side wall of the mounting seat (16), the other end of the lead screw (19) is rotatably connected with the mounting seat (16), and a handle (20) is fixedly connected to the part of the other end of the lead screw (19) exposed out of the mounting seat (16).
4. The metal fatigue resistance detection device according to claim 1, wherein the clamp comprises a chuck (21), a clamping plate (22) and clamping columns (23), one side of the chuck (21) is rotatably connected with one side of the fixed block (17) opposite to the sliding block (18) through a rotating shaft (24), one end of the rotating shaft (24) on the chuck (21) corresponding to the fixed block (17) penetrates through the fixed block (17) and then is in transmission connection with an output shaft of the driving motor (6) through a transmission assembly, a plurality of clamping columns (23) arranged along the radial direction of the chuck (21) are uniformly distributed on the side wall of the chuck (21), the clamping columns (23) are in sliding connection with the side wall of the chuck (21), the clamping plate (22) is fixedly connected to one end of the clamping columns (23) located on the inner side of the chuck (21), and a baffle plate (25) is fixedly connected to one end of the clamping columns (23) located on the outer side of the chuck (21), a spring (26) is connected between the baffle plate (25) and the side wall of the chuck (21).
5. The metal fatigue resistance performance detection device according to claim 1, wherein the transmission assembly comprises a worm wheel, a transmission shaft (29), a drive bevel gear (30) and a driven bevel gear (31), a part of an output shaft of the driving motor (6) is a worm, the worm wheel is engaged with the worm, the top end of the transmission shaft (29) is fixedly connected with the axis of the worm wheel, the bottom end of the transmission shaft (29) penetrates through the transverse wall of the "U" -shaped frame (5) and is rotatably connected with the transverse wall of the "U" -shaped frame (5), the bottom end of the transmission shaft (29) is fixedly connected with the drive bevel gear (30), the drive bevel gear (30) is engaged with the driven bevel gear (31), and one end of the rotating shaft (24) corresponding to the fixing block (17) is fixedly connected with the axis of the driven bevel gear (31).
6. The metal fatigue resistance detection device according to claim 1, wherein the driven bevel gear (31), the rotating shaft (24), the chuck (21) and the corresponding positions of the fixed block (17) and the sliding block (18) are provided with through cavities which are communicated with each other, the inner side walls of the cavities are provided with internal threads, the cavities are in threaded connection with threaded rods (32), one ends of the threaded rods (32) extend into the chuck (21) and are fixedly connected with conical chucks (33), and the other ends of the threaded rods (32) extend out of the cavities and are fixedly connected with handles (20).
7. The metal fatigue resistance detecting device according to claim 1, wherein a roller (34) is rotatably connected to the bottom of the hammer head (15).
8. The metal fatigue resistance performance detection device according to claim 1, wherein a film pressure sensor (35) is arranged between the hammer head (15) and the mounting rod (14), a display screen (36) is fixedly arranged on the base (4), and the film pressure sensor (35) is in signal connection with the display screen (36) through a lead.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210625041.4A CN114993863A (en) | 2022-06-02 | 2022-06-02 | Metal fatigue resistance performance detection device |
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| CN202210625041.4A CN114993863A (en) | 2022-06-02 | 2022-06-02 | Metal fatigue resistance performance detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115343010A (en) * | 2022-10-13 | 2022-11-15 | 南通金芸流体设备有限公司 | Ship accessory impact performance detection device |
| CN115389149A (en) * | 2022-10-28 | 2022-11-25 | 湖北鼎万机电设备有限公司 | Anti-seismic support and hanger performance detection system |
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2022
- 2022-06-02 CN CN202210625041.4A patent/CN114993863A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115343010A (en) * | 2022-10-13 | 2022-11-15 | 南通金芸流体设备有限公司 | Ship accessory impact performance detection device |
| CN115389149A (en) * | 2022-10-28 | 2022-11-25 | 湖北鼎万机电设备有限公司 | Anti-seismic support and hanger performance detection system |
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