Impact wear test device capable of controlling gas environment

Abstract

The invention relates to the field of material performance tests, in particular to an impact wear test device capable of controlling a gas environment. The device comprises a vibration exciter, wherein two sides of the vibration exciter are respectively provided with an output end; the two impact cavities are arranged on the two sides of the vibration exciter respectively; an air outlet and an air inlet are formed in each impact cavity, and the air inlets of the two impact cavities are communicated through an air inlet pipe; the air inlet pipe is communicated with an external air source, and an exhaust valve is arranged at the exhaust port; the impact cavity is provided with impact rods, the two output ends of the vibration exciter are connected with the impact rods respectively, and at least one output end of the vibration exciter is connected with the impact rods through a force sensor; a sample groove for loading a sample is formed in the inner wall of the impact cavity opposite to the end part of the impact rod. According to the scheme, material impact wear test conditions in a controllable gas environment can be provided, various gas environment conditions can be simulated by connecting different gas sources, and diversified impact test requirements are met.

Description

Technical Field

[0001] This application relates to the field of material performance testing, and in particular to an impact and wear testing device in a controlled gas environment. Background Technology

[0002] In various types of machinery, many parts are subjected to varying degrees of impact and wear, which can lead to mechanical failure in severe cases. In order to study the damage mechanism, various types of testing machines have been developed both domestically and internationally.

[0003] In actual working conditions, the environment of impact wear is quite complex, and existing impact wear testing machines typically only conduct tests in an air environment. However, the influence of the gas environment on the impact wear characteristics of mechanical parts is crucial. By conducting impact studies in different atmospheres, it is possible to more comprehensively evaluate the performance of mechanical equipment under different working environments.

[0004] In the prior art, CN202210833859.5 discloses a safe, multifunctional, in-situ testing device for friction and wear of materials in a high-pressure hydrogen environment. This device can be used to conduct rotational friction tests and uniform reciprocating friction tests on materials in a high-pressure hydrogen environment, and also has a high-precision test force monitoring function. However, this device is only used for friction testing in a hydrogen environment and suffers from complex structure and high energy dissipation. CN201310489760.9 discloses an impact wear testing machine and a method for manufacturing impact wear, using a motor to drive a magnet, relying on magnetic force to drive the test piece for impact testing, avoiding the dynamic sealing problem under high temperature and high pressure. However, this device cannot control the gas environment, has low impact energy, and cannot accurately measure the impact force.

[0005] Therefore, there is currently no reliable structure in the technology that can conduct efficient impact and wear tests in different gas environments. Summary of the Invention

[0006] This application provides an impact and wear testing device for a controlled gas environment, which can simulate various gas environment conditions and meet diverse impact testing needs.

[0007] This application provides a controlled gas environment impact wear testing apparatus, comprising, The exciter has an output terminal on each of its two sides; Two impact chambers are respectively arranged on both sides of the vibrator; each impact chamber is provided with an exhaust port and an air inlet, and the air inlets of the two impact chambers are connected by an air inlet pipe; the air inlet pipe is connected to an external air source, and an exhaust valve is provided at the exhaust port; The impact chamber has an impact rod, and the two output ends of the exciter are respectively connected to one of the impact rods. At least one output end of the exciter is connected to the impact rod through a force sensor. A sample groove for loading the sample is provided on the inner wall of the impact chamber, directly opposite the end of the impact rod.

[0008] In a preferred embodiment, the front end of the impact rod is provided with a groove, and an impact ball is placed in the groove; the fixing nut has a hole for exposing part of the spherical surface of the impact ball, and can fix the impact ball to the front end of the impact rod.

[0009] In a preferred embodiment, an orienter with a through hole is fixedly provided on the inner wall of the impact chamber. The orienter is a lubricated linear bearing structure. The impact rod passes through the through hole and is restricted to reciprocating motion in the axial direction of the through hole.

[0010] In a preferred embodiment, an impact disk is provided on the inner wall of the impact chamber facing the end of the impact rod, and the sample groove is fixed to the impact disk by a clamping plate; the depth of the sample groove is less than the thickness of the sample to be tested.

[0011] In a preferred embodiment, a sealing groove is provided on the inner wall of the hole through which the impact rod passes through the impact cavity, and a sealing gasket that cooperates with and connects to the impact rod is provided in the sealing groove.

[0012] In a preferred embodiment, the system further includes two sets of vertical position adjustment mechanisms and horizontal position adjustment mechanisms respectively connected to the impact cavity. The vertical position adjustment mechanism can adjust the vertical position of the impact cavity, and the horizontal position adjustment mechanism can adjust the horizontal position of the impact cavity.

[0013] In a preferred embodiment, both the vertical position adjustment mechanism and the horizontal position adjustment mechanism employ a guide rail slider assembly, and a lead screw mechanism is used to drive the slider movement.

[0014] In a preferred embodiment, threaded holes are respectively opened at both ends of the force sensor; the rear end of the impact rod is connected to the front ball head of the universal connecting rod by a spherical connection, the rear end of the universal connecting rod is connected to the threaded hole at one end of the force sensor, and the threaded hole at the other end of the force sensor is connected to the output end of the exciter.

[0015] In a preferred embodiment, the system further includes a test bench for supporting the vibrator and the impact chamber; the bottom of the test bench is provided with casters and a braking mechanism.

[0016] In a preferred embodiment, the air intake pipe is connected to an external air source via a three-way structure and an air intake valve.

[0017] This application has the following beneficial effects: The solution proposed in this application can provide material impact and wear test conditions in a controlled gas environment. By connecting different gas sources, it can simulate various gas environment conditions and meet diverse impact test requirements. The test device can effectively prevent gas leakage and can accurately set the impact energy through the vibrator. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of the impact and wear testing device for a controlled gas environment provided in the embodiments of this application; Figure 2 A simplified structural principle diagram of the impact and wear testing device for a controlled gas environment provided in the embodiments of this application; Figure 3 This is a schematic diagram of the longitudinal section structure of the impact cavity provided in the embodiments of this application; Figure 4 A simplified structural diagram of the impact cavity provided in the embodiments of this application; Numbering on the map: 1-Vibrator; 2-Force sensor; 3-Inlet pipe; 4-Vertical position adjustment mechanism; 5-Impact chamber; 501-Cavity body; 502-Air inlet; 503-Sealing gasket; 504-Universal connecting rod; 505-Impact rod; 506-Orienter; 507-Fixing cap; 508-Impact ball; 509-Pressure plate; 510-Sample groove; 511-Impact disc; 6-Exhaust valve; 7-Horizontal position adjustment mechanism; 8-Test bench; 9-Three-way structure; 10-Intake valve; 11-Fixer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and labeled in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] like Figures 1-4 As shown, this application provides an impact wear testing apparatus for a controlled gas environment, comprising: The vibrator 1 has an output end on each side; two impact chambers 5 are respectively arranged on both sides of the vibrator 1; the impact chamber 5 includes a cavity 501, and the cavity 501 is provided with an exhaust port and an air inlet 502. The air inlets 502 of the two impact chambers 5 are connected by an air inlet pipe 3; a three-way structure 9 is provided on the air inlet pipe 3, which is connected to an external air source through an air inlet valve 10; an exhaust valve 6 is provided at the exhaust port of the impact chamber 5.

[0028] When in use, open the inlet valve 10 and the exhaust valve 6, and fill the two impact chambers 5 with ambient gas through the inlet pipe 3. After the original air in the impact chambers 5 is exhausted, close the inlet valve 10 and the exhaust valve 6. At this time, the impact chambers 5 are in the preset gas environment conditions. By changing different gas sources, diverse impact test requirements can be met.

[0029] The impact chamber 5 has an impact rod 505 inside its cavity 501. One side of the output end of the vibrator 1 is connected to the impact rod 505 on the same side through the force sensor 2, and the other side of the output end is directly connected to the impact rod 505 on the other side. A sample groove 510 for loading the sample is provided on the inner wall of the cavity 501 at the position opposite to the end of the impact rod 505.

[0030] The impact energy can be precisely set through real-time detection by force sensor 2. Alternatively, depending on the experimental requirements, both output ends of the vibrator 1 can be connected to the impact rod 505 via force sensor 2.

[0031] The front end of the impact rod 505 is provided with a groove, and the impact ball 508 is placed in the groove. The inner hole of the fixing nut 507 is divided into two parts, front and rear. The inner hole of the front part is used to accommodate the impact ball 508. Its inner diameter gradually increases from front to back in a tapered shape, and the front end of the fixing nut 507 has a hole for exposing part of the spherical surface of the impact ball 508. The inner hole of the rear part is a threaded hole with a uniform inner diameter, which is used to connect with the front end of the impact rod 505 by thread, thereby fixing the impact ball 508 to the front end of the impact rod 505.

[0032] In a preferred embodiment, an orienter 506 with a through hole is fixedly installed on the inner wall of the cavity 501 of the impact chamber 5 by bolts and nuts. The impact rod 505 passes through the through hole and is restricted to reciprocating motion in the axial direction of the through hole. The orienter 506 is a lubricated linear bearing structure, which ensures smooth movement of the impact rod 505 while reducing gas leakage.

[0033] A sealing groove is provided on the inner wall of the hole through which the impact rod 505 passes through the cavity 501, and a sealing gasket 503 that mates with the impact rod 505 is placed in the sealing groove. By setting the orienter 506 and the sealing gasket 503, the sealing effect of the impact cavity 5 can be improved and air leakage can be reduced.

[0034] In a preferred embodiment, a circular impact disc 511 is mounted on the inner wall of the cavity 501 facing the end of the impact rod 505 by bolts and nuts. The sample groove 510 is fixed to the impact disc 511 by a clamping plate 509. The depth of the sample groove 510 is slightly less than the thickness of the sample to be tested. A circular hole with a diameter slightly smaller than the side length of the sample groove 510 is opened in the middle of the clamping plate 509 to expose the sample to be tested.

[0035] To make the impact motion smoother, two sets of vertical position adjustment mechanisms 4 and horizontal position adjustment mechanisms 7 are respectively connected to the two impact chambers 5. The vertical position adjustment mechanism 4 can adjust the vertical position of the impact chamber 5, and the horizontal position adjustment mechanism 7 can adjust the horizontal position of the impact chamber 5.

[0036] Specifically, both the vertical position adjustment mechanism 4 and the horizontal position adjustment mechanism 7 adopt guide rail slider assemblies and use a lead screw mechanism to drive the slider to move, thereby achieving precise fine-tuning of the impact chamber 5 in spatial position.

[0037] In a preferred embodiment, threaded holes are provided at both ends of the force sensor 2; the rear end of the impact rod 505 is connected to the ball end of the universal connecting rod 504 by a spherical connection, the rear end of the universal connecting rod 504 is connected to the threaded hole at one end of the force sensor 2, and the threaded hole at the other end of the force sensor 2 is connected to the output end of the vibrator 1. The universal connecting rod 504 can balance the impact rod 505 and the force sensor 2, eliminate the small errors after the vertical position adjustment mechanism 4 and the horizontal position adjustment mechanism 7 adjust the spatial position, and make the impact motion smoother.

[0038] In a preferred embodiment, the vibrator 1 is mounted on the fixture 11, and the fixture 11 and the two impact chambers 5 are mounted on the test bench 8; the bottom of the test bench 8 is provided with casters and a braking mechanism to facilitate movement.

[0039] The controllable gas environment impact wear test strip device provided in this embodiment can simulate various gas environment conditions, meet diverse impact test requirements, effectively prevent gas leakage, and accurately set the impact energy.

[0040] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A controlled gas environment impact wear test apparatus, characterised in that, The utility model relates to a kind of impact testing machine, including, Vibration exciter, two sides have an output end respectively; Two impact cavities are arranged in the two sides of the vibration exciter respectively;The impact cavity is provided with exhaust port and air inlet, and the air inlets of the two impact cavities are communicated by air inlet pipe;The air inlet pipe is communicated with external air source, and the exhaust valve is arranged at the exhaust port; The impact cavity has impact rod, and the two output ends of the vibration exciter are connected with an impact rod respectively, wherein at least one output end of the vibration exciter is connected with the impact rod through force sensor; The position of the inner wall of the impact cavity directly opposite the end of the impact rod is provided with a sample groove for loading sample.

2. The controllable gas environment impact wear test apparatus according to claim 1, characterized in that The front end of the impact rod is provided with a groove, and an impact ball is placed in the groove;The fixed nut has a hole for exposing part of the spherical surface of the impact ball, and can relatively fix the impact ball to the front end of the impact rod.

3. The controllable gas environment impact wear test apparatus of claim 1, wherein, The inner wall of the impact cavity is fixedly provided with a director with through hole, and the director is a linear bearing structure with lubrication;The impact rod passes through the through hole and is limited to reciprocate in the axial direction of the through hole.

4. The controlled-gaseous-environment impact abrasion tester of claim 1, wherein, The inner wall of the impact cavity directly opposite the end of the impact rod is provided with an impact disc, and the sample groove is fixed on the impact disc by a pressing plate;The depth of the sample groove is less than the thickness of the sample to be tested.

5. The controllable gas environment impact wear test apparatus of claim 1, wherein, A sealing groove is arranged on the inner wall of the hole through which the impact rod passes, and a sealing gasket is arranged in the sealing groove and connected with the impact rod.

6. The controllable gas environment impact wear test apparatus of claim 1, wherein, It also includes two groups of vertical position adjusting mechanism and horizontal position adjusting mechanism connected with the impact cavity respectively, the vertical position adjusting mechanism can adjust the vertical position of the impact cavity, and the horizontal position adjusting mechanism can adjust the horizontal position of the impact cavity.

7. A controllable gas environment impact wear test apparatus according to claim 6, characterised in that, The vertical position adjusting mechanism and the horizontal position adjusting mechanism both adopt guide rail and slider assembly, and drive the slider to move by using lead screw mechanism.

8. The controllable gas environment impact wear test apparatus of claim 6, wherein, Threaded holes are formed at both ends of the force sensor respectively;The spherical surface connection is adopted between the rear end of the impact rod and the front spherical head of the universal connecting rod, the rear end of the universal connecting rod is connected with the threaded hole at one end of the force sensor, and the threaded hole at the other end of the force sensor is connected with the output end of the vibration exciter.

9. The controllable gas environment impact wear test apparatus of claim 1, wherein, It also includes a test bed for bearing the vibration exciter and the impact cavity;Universal wheel and brake mechanism are arranged at the bottom of the test bed.

10. The controllable gas environment impact wear test apparatus of claim 1, wherein, The air inlet pipe is communicated with external air source through tee structure and air inlet valve.

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