CN210720017U - Ultrasonic fatigue testing machine - Google Patents

Abstract

The utility model relates to an ultrasonic wave fatigue testing machine, including fixed subassembly of sample and cooling module, the fixed subassembly of sample includes the casing, cooling module with the casing is connected, cooling module includes cooling unit and connecting seat, cooling unit with the connecting seat is connected, connecting seat fixed connection in the casing. The utility model discloses an ultrasonic wave fatigue testing machine, cooling unit are connected with the casing through the connecting seat, and the installation and the dismantlement of connecting seat and casing are cooling unit and casing are the installation and the dismantlement promptly, and then the cooling unit modularization, and the change and the dismantlement of the cooling unit of being convenient for save time.

Description

Ultrasonic fatigue testing machine

Technical Field

The utility model relates to a testing machine technical field especially relates to an ultrasonic fatigue testing machine.

Background

The ultrasonic fatigue testing machine is a machine mainly used for testing the fatigue performance of metal and alloy materials thereof under the conditions of tensile, compression or alternating tensile and compression loads at room temperature. The cooling units in the existing ultrasonic fatigue testing machine are multiple groups, and the replacement and the disassembly of the multiple groups of cooling units are extremely complex, so that the time of testing personnel is wasted.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for an improved ultrasonic fatigue testing machine, which facilitates the replacement and disassembly of the cooling unit and is beneficial to saving the time of the testing personnel.

The utility model provides an ultrasonic fatigue testing machine, including the fixed subassembly of sample and cooling module, the fixed subassembly of sample includes the casing, cooling module with the casing is connected, cooling module includes connecting seat and a plurality of cooling unit, each the cooling unit all set up in on the connecting seat, the connecting seat can dismantle connect in the casing.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

In one embodiment, the connection socket includes a first connection part connected to the cooling unit and a second connection part connected to the housing; the cooling unit is screwed with the first connecting part.

In one embodiment, the second connecting portion has an external thread, the housing has an internal thread, and the second connecting portion is screwed with the housing; or the like, or, alternatively,

the second connecting portion is provided with an internal thread, the shell is provided with an external thread, and the second connecting portion is in threaded connection with the shell.

In one embodiment, the second connecting portion is fixed to the housing in a snap-fit manner.

In one embodiment, the connecting seat is provided with a avoiding hole, the avoiding hole penetrates through the first connecting portion and the second connecting portion, and the avoiding hole is used for avoiding the sample fixing assembly.

In one embodiment, the shape of the first connecting portion is adapted to the shape of the housing, and the outer side surface of the first connecting portion is flush with the outer side surface of the housing.

In one embodiment, the first connecting portion and the second connecting portion are of an integrally formed structure; or the like, or, alternatively,

the first connecting portion and the second connecting portion are of split structures, and the first connecting portion and the second connecting portion are fixed to each other.

In one embodiment, the cooling unit comprises a conduit fixedly connected to the first connection portion and a nozzle connected to the conduit, the nozzle being arranged towards the external sample.

In one embodiment, the cooling units are arranged on the end face of the first connecting part, the number of the cooling units is at least two, and two adjacent cooling units are arranged at intervals; or the like, or, alternatively,

the cooling units are arranged on the end face of the first connecting portion, the number of the cooling units is at least multiple, and the distance between every two adjacent cooling units is equal.

In one embodiment, the side wall of the housing is provided with a vent hole for heat dissipation.

The utility model discloses an ultrasonic wave fatigue testing machine, cooling module include cooling unit and connecting seat, and connecting seat fixed connection is in the casing, and cooling unit is connected with the casing through the connecting seat, and the installation and the dismantlement of connecting seat and casing are cooling unit and casing promptly, and then the cooling unit modularization, the change and the dismantlement of the cooling unit of being convenient for save time.

Drawings

Fig. 1 is a schematic structural view of an ultrasonic fatigue testing machine according to an embodiment of the present invention;

FIG. 2 is a sectional view of a part of the structure of the ultrasonic fatigue testing machine shown in FIG. 1;

FIG. 3 is a schematic structural diagram of a cooling module in the ultrasonic fatigue testing machine shown in FIG. 1;

fig. 4 is a schematic structural view of the connecting seat in the cooling assembly shown in fig. 3.

Description of reference numerals:

100. an ultrasonic fatigue testing machine; 10. a cabinet body; 11. a first cabinet; 12. a second cabinet; 121. a frame; 20. a dead load applying assembly; 21. a static loading frame; 211. a cross beam; 212. a protective shell; 30. a sample fixing assembly; 31. a housing; 311. an inner cavity; 312. a vent hole; 32. a transducer; 33. an amplitude transformer; 34. a tool head; 40. a cooling assembly; 41. a cooling unit; 411. a conduit; 412. a nozzle; 42. a connecting seat; 421. a first connection portion; 4211. connecting holes; 422. a second connecting portion; 423. a bolt; 424. avoiding holes; 50. a fixed seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an ultrasonic fatigue testing machine 100 according to an embodiment of the present invention. The ultrasonic fatigue testing machine 100 is used for measuring the fatigue performance of the metal and the alloy material thereof under the condition of tensile, compression or tensile and compression alternating load at room temperature, so as to obtain the performance data of the metal and the alloy material thereof, and further, the metal and the alloy material thereof can be fully utilized in the appropriate field.

In the present embodiment, the ultrasonic fatigue testing machine 100 is applied in a laboratory; it is understood that in other embodiments, the ultrasonic fatigue testing machine 100 may be used in other testing places such as a research institute or a research institute.

Ultrasonic fatigue testing machine 100 includes the cabinet body 10, subassembly 20 is applyed to the dead load, subassembly 30 is fixed to the sample, cooling module 40 and fixing base 50, subassembly 20 is applyed to the dead load and fixing base 50 all is connected with cabinet body 10, subassembly 20 is applyed in the dead load to sample fixed subassembly 30 connection, cooling module 40 connects and sample fixed subassembly 30, cabinet body 10 is used for holding each electronic component and each subassembly, subassembly 20 is applyed to the dead load and is used for driving sample fixed subassembly 30 to remove and applys the dead load to external sample, sample fixed subassembly 30 is used for fixed external sample and carries out fatigue test to external sample, cooling module 40 is used for cooling external sample, fixing base 50 is used for the fixed external sample of sample fixed subassembly 30 jointly.

The cabinet 10 includes a first cabinet 11 and a second cabinet 12, the first cabinet 11 is connected to the second cabinet 12, the first cabinet 11 is used for accommodating electronic components of the ultrasonic fatigue testing machine 100, and the second cabinet 12 is used for accommodating the static load applying assembly 20, the sample fixing assembly 30 and the fixing seat 50.

The second cabinet 12 includes a frame 121 and a sound-proof barrier layer (not shown), the frame 121 is connected to the first cabinet 11, the sound-proof barrier layer is connected to the frame 121, and the sound-proof barrier layer encloses the static load applying assembly 20, the sample fixing assembly 30 and the fixing seat 50; under some operating conditions, certain noise can be produced to ultrasonic fatigue testing machine 100 during operation, and the second cabinet body 12 can reduce the noise and to the interference of testing personnel, guarantees that testing personnel is in good experimental environment.

In the embodiment, the sound insulation shielding layer is the sound insulation glass, so that a tester can observe the whole test process by adopting the sound insulation glass, the test analysis is facilitated, and meanwhile, the sound insulation glass can be used for the test; it is understood that in other embodiments, other sound-insulating means may be used for the sound-insulating barrier.

The static load applying assembly 20 includes a static load rack 21 and a motor (not shown), the static load rack 21 is connected to the sample fixing assembly 30, the static load rack 21 is connected to the frame 121, the motor is connected to the static load rack 21, the static load rack 21 is used for moving the sample fixing assembly 30 and applying a static load to the sample fixing assembly 30, and the motor is used for driving the static load rack 21 to move.

In this embodiment, the static rack 21 includes a first ball screw (not shown), a second ball screw (not shown), and a cross beam 211, the first ball screw and the second ball screw are both vertically connected to the first cabinet 11, the cross beam 211 is connected to the sample fixing assembly 30, both ends of the cross beam 211 are respectively connected to a screw nut of the first ball screw and a screw nut of the second ball screw, the motor can drive the first ball screw and the second ball screw to rotate, the screw nut can convert the rotation motion of the ball screw into a linear motion, that is, when the ball screw rotates, the screw nut can move along the ball screw, both ends of the cross beam 211 are both connected to the screw nut, and the screw nut can drive the cross beam to move along the screw; it is understood that in other embodiments, other transmission devices may be adopted for the static load rack 21, as long as the motor can drive the static load rack 21 to move the sample fixing assembly 30 relative to the first cabinet 11.

In this embodiment, the first ball screw and the second ball screw are provided with the protective shell 212, the first ball screw and the second ball screw are surrounded by the protective shell 212, and the protective shell 212 can prevent the first ball screw and the second ball screw from being directly exposed to the outside, so as to protect the first ball screw and the second ball screw, thereby facilitating the normal operation of the ultrasonic fatigue testing machine 100; it is understood that in other embodiments, the protective shell 212 may not be provided, and is not particularly limited.

Referring to fig. 2, fig. 2 is a sectional view of a part of the structure of the ultrasonic fatigue testing machine 100 shown in fig. 1. The sample fixing assembly 30 comprises a shell 31, a transducer 32, an amplitude transformer 33 and a tool head 34, wherein the amplitude transformer 33 is connected with the shell 31, the transducer 32 and the tool head 34 are both connected with the amplitude transformer 33, the shell 31 is used for arranging parts and conducting static load, the transducer 32 is used for converting high-frequency alternating current signals into mechanical signals, the amplitude transformer 33 is used for amplifying the mechanical signals of the transducer 32, and the tool head 34 is used for fixing an external sample.

The housing 31 has an inner cavity 311, the inner cavity 311 of the housing 31 is used for accommodating various components, a vent hole 312 is formed on a side wall of the housing 31, the vent hole 312 is used for dissipating heat, and various components in the inner cavity 311 generate corresponding heat during operation. Casing 31 passes through the bolt with crossbeam 211 to be connected fixedly, and then crossbeam 211 can drive sample fixed component 30 through casing 31 and remove along the lead screw to be convenient for adjust the distance of sample fixed component 30 and fixing base 50, be favorable to sample fixed component 30 and fixing base 50 external sample jointly.

The transducer 32 is disposed in the inner cavity 311 and electrically connected to the ultrasonic generator (not shown), the transducer 32 can convert a high-frequency ac signal emitted from the ultrasonic generator into a mechanical signal, that is, the transducer 32 can generate vibration with a certain amplitude according to the signal of the ultrasonic generator, and meanwhile, the transducer 32 can transmit the vibration to an external sample, so as to perform a corresponding test on the external sample, and further obtain corresponding implementation data.

It should be noted that the ultrasonic generator can convert the commercial power into a high-frequency alternating current signal matched with the transducer 32, and transmit the high-frequency alternating current signal to the transducer 32, in this embodiment, the ultrasonic generator is disposed on the first cabinet; it is understood that in other embodiments, the ultrasonic generator may be disposed at other positions of the frame 121.

The amplitude transformer 33 is connected to the shell 31 and extends into the inner cavity 311, one end, extending into the inner cavity 311, of the amplitude transformer 33 is connected with the transducer 32, the amplitude transformer 33 can gather energy, meanwhile, the amplitude transformer 33 can expand the vibration amplitude of the transducer 32 and transmit the vibration after the vibration amplitude is expanded to an external sample, and therefore the external sample can be tested under specific conditions, and corresponding test data can be measured.

In the present embodiment, the horn 33 and the transducer 32 are connected by a bolt, which facilitates the detachment and respective reuse of the horn 33 and the transducer 32; it is understood that in other embodiments, the horn 33 and the transducer 32 may be integrally formed or connected by other means, as long as the horn 33 can achieve the purpose of enlarging the amplitude of the vibration of the transducer 32.

The transducer 32 adjusts the load matching between the transducer 32 and the tool head 34 by installing the amplitude transformer 33, reduces the resonance impedance, improves the conversion efficiency of the self resonance frequency, effectively reduces the heat productivity of the transducer 32, and prolongs the service life.

In the present embodiment, the number of the horn 33 is set to one; it will be appreciated that in other embodiments, in order to enable the horns 33 to meet the corresponding operational requirements, i.e., the horns 33 can vibrate the transducer 32 to a corresponding amplitude, the number of the horns 33 can be set to other values such as two or three, and the adjacent horns 33 are connected by bolts, thereby achieving the aforementioned purpose.

The tool head 34 is connected with one end of the amplitude transformer 33 extending out of the inner cavity 311, and the tool head 34 is used for fixing an external sample. In the embodiment, the tool head 34 and the amplitude transformer 33 are fixed through bolts, and the bolt connection can ensure that the tool head 34 and the amplitude transformer 33 have good stability, so that an external sample fixed on the tool head 34 is prevented from shaking, and the accuracy of a test is ensured; it is understood that in other embodiments, the tool head 34 and the horn 33 can be fixed by other means such as clamping, and are not limited in particular.

The cooling assembly 40 comprises a cooling unit 41, the cooling unit 41 is connected with the shell 31, the cooling unit 41 is connected with an external cold source, and an external sample can be cooled, so that the external sample can meet corresponding test conditions, and further, the test can be smoothly carried out.

The fixing seat 50 is disposed corresponding to the tool head 34 and connected to the first cabinet 11. In the present embodiment, the shape of the fixing base 50 is substantially cylindrical, so as to facilitate the production and processing of the fixing base 50; it is understood that in other embodiments, the fixing seat 50 may be provided in other shapes.

It should be noted that, the "fixing seat 50 is disposed corresponding to the tool head 34", that is, the position of the fixing seat 50 corresponds to the position of the tool head 34, and the axis of the fixing seat 50 is collinear with the axis of the tool head 34; fixing base 50 and tool head 34 are fixed outside sample jointly, so set up and can make the outside sample of settling between fixing base 50 and tool head 34 can not take place the skew, and then prevent that outside sample atress is uneven in the experiment, guarantee that the experiment can normally go on.

In the embodiment, the fixing seat 50 is connected with the first cabinet 11 through a bolt, and the bolt connection can facilitate the detachment and replacement of the fixing seat 50; it is understood that, in other embodiments, the fixing seat 50 and the first cabinet 11 may be fixed by other connection methods such as welding.

The replacement and the disassembly of a cooling unit in the existing ultrasonic fatigue testing machine are extremely complicated, and the time of testing personnel is further wasted.

Referring to fig. 3, fig. 3 is a schematic structural diagram of the cooling element 40 in the ultrasonic fatigue testing machine 100 shown in fig. 1. To the above problem, the utility model discloses following improvement has still been made. The utility model discloses a cooling module 40 still includes connecting seat 42, and cooling unit 41 is connected with connecting seat 42, and connecting seat 42 can be dismantled with casing 31 and be connected, and connecting seat 42 is used for being connected to cooling unit 41 to casing 31 to play the switching effect.

The cooling unit 41 includes a guide tube 411 and a nozzle 412 connected to each other, the guide tube 411 is connected to the connection socket 42, the nozzle 412 is disposed toward the external sample, the guide tube 411 is used to carry the refrigerant in the external cold source, and the nozzle 412 is used to spray the refrigerant stored in the external cold source. The cooling unit 41 can cool the external sample through an external cooling source, thereby satisfying the corresponding test requirements.

The cooling units 41 are arranged on the end face, close to the external sample, of the connecting seat 42, and the number of the cooling units 41 is at least two, so that the cooling units 41 can fully cool the external sample, and the test can be smoothly carried out; the spacing distance between two adjacent groups of cooling units 41 is equal, so that local supercooling or overheating of an external sample is prevented, the external sample can be uniformly cooled, and accurate test data can be obtained.

In the present embodiment, the cooling units 41 are provided in four groups, and the four groups of cooling units 41 can sufficiently meet the cooling requirement of the external sample; it is understood that, in other embodiments, the number of the cooling units 41 may be set to other components, and is not particularly limited.

The connection socket 42 includes a first connection portion 421 and a second connection portion 422, the first connection portion 421 is connected to the second connection portion 422, the first connection portion 421 is used for connecting the cooling unit 41, and the second connection portion 422 is used for connecting the housing 31. In this embodiment, the first connecting portion 421 and the second connecting portion 422 are integrally formed, so as to facilitate the integral processing and forming of the connecting seat 42; it is understood that, in other embodiments, the first connection portion 421 and the second connection portion 422 may be separate structures, and the first connection portion 421 and the second connection portion 422 may be fixed by a connection method such as welding.

Referring to fig. 4, fig. 4 is a schematic structural diagram of the connecting seat 42 in the cooling module 40 shown in fig. 3. The first connection portion 421 is screwed with the cooling unit 41, in this embodiment, a connection hole 4211 is formed in an end surface of the first connection portion 421, a thread is formed in the connection hole 4211, the conduit 411 penetrates and is fixedly connected to the bolt 423, and the bolt 423 is screwed with the connection hole 4211, so that the connection between the first connection portion 421 and the conduit 411 is realized, and the arrangement can ensure the connection stability between the first connection portion 421 and the conduit 411, and is favorable for the normal operation of the cooling assembly 40; it is understood that, in other embodiments, the first connection portion 421 and the conduit 411 may be fixed by a snap-fit manner, and is not limited in particular.

The shape of first connecting portion 421 and the shape looks adaptation of casing 31, when connecting seat 42 is connected with casing 31 promptly, the lateral surface of first connecting portion 421 is parallel and level with the lateral surface of casing 31 mutually to be convenient for the experimenter to hold operations such as casing 31, be favorable to experimental smooth going on.

In the present embodiment, the shape of the housing 31 is cylindrical, and the shape of the first connection portion 421 is also cylindrical, so that the cylindrical shape can facilitate production and processing; it is understood that in other embodiments, the shape of the housing 31 and the first connection portion 421 may be other shapes such as a prism.

In this embodiment, the second connecting portion 422 has an external thread, the side wall forming the inner cavity has an internal thread, and the second connecting portion 422 is screwed with the side wall forming the inner cavity, so as to fix the connecting seat 42 and the housing 31, and the screwing can ensure that the connecting seat 42 is stably connected with the housing 31, so as to prevent the connecting seat 42 and the housing 31 from shaking, thereby facilitating the smooth performance of the test; it is understood that in other embodiments, the second connecting portion 422 may be internally threaded and the sidewall defining the inner cavity may be externally threaded.

In another embodiment, the second connection portion 422 and the housing 31 may be fixed by a clamping method, etc., as long as the connection seat 42 can be fixedly connected with the housing 31 through the second connection portion 422, which is not particularly limited.

The connecting seat 42 is further provided with a avoiding hole 424, the avoiding hole 424 is used for avoiding the sample fixing component 30, and the avoiding hole 424 penetrates through the first connecting part 421 and the second connecting part 422; because the amplitude transformer 33 is connected to the housing 31 and extends into the inner cavity 311, the arrangement of the avoiding hole 424 can prevent the first connecting portion 421 from obstructing the amplitude transformer 33, thereby ensuring the smooth installation of the amplitude transformer 33, and facilitating the normal operation of the ultrasonic fatigue testing machine 100.

The utility model discloses an ultrasonic wave fatigue testing machine 100, cooling module 40 include cooling unit 41 and connecting seat 42, and connecting seat 42 fixed connection is in casing 31, and cooling unit 41 is connected with casing 31 through connecting seat 42, and connecting seat 42 is cooling unit 41 and casing 31's installation and dismantlement promptly with the installation of dismantlement, and then the 41 modularization of cooling unit, and the test personnel time is saved in the change and the dismantlement of the cooling unit 41 of being convenient for.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims (10)

1. The utility model provides an ultrasonic fatigue testing machine (100), includes fixed subassembly (30) of sample and cooling module (40), fixed subassembly (30) of sample includes casing (31), cooling module (40) with casing (31) are connected, its characterized in that, cooling module (40) are including connecting seat (42) and a plurality of cooling unit (41), each cooling unit (41) all set up in on connecting seat (42), connecting seat (42) can dismantle connect in casing (31).

2. The ultrasonic fatigue testing machine (100) of claim 1, wherein the connection socket (42) comprises a first connection portion (421) connected to the cooling unit (41) and a second connection portion (422) connected to the housing (31); the cooling unit (41) is screwed with the first connection portion (421).

3. The ultrasonic fatigue testing machine (100) as set forth in claim 2, wherein the second connecting portion (422) is provided with an external thread, the housing (31) is provided with an internal thread, and the second connecting portion (422) is screwed with the housing (31); or the like, or, alternatively,

the second connecting part (422) is provided with an internal thread, the shell (31) is provided with an external thread, and the second connecting part (422) is in threaded connection with the shell (31).

4. The ultrasonic fatigue testing machine (100) of claim 2, wherein the second connecting portion (422) is snap-fitted to the housing (31).

5. The ultrasonic fatigue testing machine (100) according to claim 2, wherein the connecting seat (42) is provided with a avoiding hole (424), the avoiding hole (424) penetrates through the first connecting portion (421) and the second connecting portion (422), and the avoiding hole (424) is used for avoiding the sample fixing component (30).

6. The ultrasonic fatigue testing machine (100) according to claim 2, wherein the shape of the first connecting portion (421) is adapted to the shape of the housing (31), and the outer side surface of the first connecting portion (421) is flush with the outer side surface of the housing (31).

7. The ultrasonic fatigue testing machine (100) of claim 2, wherein the first connecting portion (421) and the second connecting portion (422) are of an integrally molded structure; or the like, or, alternatively,

the first connecting portion (421) and the second connecting portion (422) are of a split structure, and the first connecting portion (421) and the second connecting portion (422) are fixed to each other.

8. The ultrasonic fatigue tester (100) of claim 2, wherein the cooling unit (41) comprises a conduit (411) and a nozzle (412) connected to the conduit (411), the conduit (411) being fixedly connected to the first connection portion (421), the nozzle (412) being disposed toward the external test specimen.

9. The ultrasonic fatigue testing machine (100) according to claim 2, wherein the cooling units (41) are disposed on the end face of the first connecting portion (421), the number of the cooling units (41) is at least two, and two adjacent cooling units (41) are disposed at intervals; or the like, or, alternatively,

the cooling units (41) are arranged on the end face of the first connecting portion (421), the number of the cooling units (41) is at least multiple, and the distance between every two adjacent cooling units (41) is equal.

10. The ultrasonic fatigue testing machine (100) as claimed in claim 1, wherein a vent hole (312) for heat dissipation is opened on a side wall of the housing (31).

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