CN114199709A - Wide-temperature-range high-speed impact wear testing machine - Google Patents
Wide-temperature-range high-speed impact wear testing machine Download PDFInfo
- Publication number
- CN114199709A CN114199709A CN202111500328.6A CN202111500328A CN114199709A CN 114199709 A CN114199709 A CN 114199709A CN 202111500328 A CN202111500328 A CN 202111500328A CN 114199709 A CN114199709 A CN 114199709A
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- impact
- block mounting
- mounting seat
- cam
- testing
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- 238000012360 testing method Methods 0.000 title claims abstract description 100
- 238000009863 impact test Methods 0.000 claims abstract description 6
- 238000005299 abrasion Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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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
- G01N3/56—Investigating resistance to wear or abrasion
-
- 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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
Abstract
The invention relates to a wide-temperature-range high-speed impact wear testing machine, which comprises a testing frame, a working platform, a high-temperature furnace and an impact testing module, wherein the working platform is arranged above the testing frame, the high-temperature furnace is arranged on the working platform, the impact testing module is arranged in the high-temperature furnace and comprises a testing block mounting seat, a testing block is mounted on the testing block mounting seat, the impact block mounting seat is arranged between two testing block mounting seats in a sliding manner, the impact block mounting seat is detachably connected with an impact block, the output end of a driving mechanism is connected with the impact block mounting seat and is used for driving the impact block mounting seat to reciprocate up and down, the impact wear testing machine is of a modular design, the testing block mounting seat and the impact block mounting seat are arranged, the installation, the disassembly and the subsequent upgrade are convenient, a testing material can be selected and replaced at will, and the surface-surface contact impact wear under the condition that the testing material is more than 0 DEG and less than 90 DEG can be tested, the impact wear performance of the material at high temperature is actually tested, and the impact wear behavior rule is conveniently researched.
Description
Technical Field
The invention relates to the technical field of material impact wear testing, in particular to a wide-temperature-range high-speed impact wear testing machine.
Background
When the internal combustion engine works, the valve moves back and forth (the valve is opened and closed) periodically at a certain frequency along with the air inlet and exhaust strokes of the engine and collides with the valve seat on the cylinder cover in a periodic contact manner to ensure the periodic sealing and ventilation of the combustion chamber.
The high-temperature impact wear is a main form of wear of valve-valve seat materials, most of the existing measuring and setting devices can only measure the impact wear between a point and a plane or between a ball and a plane at normal temperature, and the impact angle cannot be changed, so that a wide-temperature-range high-speed impact wear testing machine is needed to solve the problems.
Disclosure of Invention
The invention aims to solve the problems that most of the existing measuring devices can only measure the impact abrasion between a point and a plane or between a ball and a plane at normal temperature and the impact angle cannot be changed, and provides a wide-temperature-range high-speed impact abrasion tester.
The invention provides a wide temperature range high-speed impact wear testing machine, which comprises:
the test stand is provided with a working platform above;
the high-temperature furnace is arranged on the working platform;
the impact test module is arranged in the high-temperature furnace and comprises: the two opposite test block mounting seats are connected with the working platform, and mounting grooves are formed in the test block mounting seats; the test block is arranged in the mounting groove and is detachably connected with the test block mounting seat; the impact block mounting seat is arranged between the two test block mounting seats in a sliding manner, and an impact block is detachably connected to the impact block mounting seat; and the driving mechanism is arranged on the test frame, and the output end of the driving mechanism is connected with the impact block mounting seat and is used for driving the impact block mounting seat to reciprocate up and down.
Preferably, the drive mechanism comprises:
one end of the ejector rod is connected with the impact block mounting seat, and the other end of the ejector rod penetrates through the working platform and extends to the position below the working platform;
the sleeve is arranged below the working platform and sleeved on the ejector rod, and the upper end of the sleeve is connected with the working platform;
the elastic piece is connected between the sleeve and the ejector rod;
the cam is erected on the test frame, the cam shaft is connected with a driving motor, and the lower end of the ejector rod is in contact with the outline of the cam.
Preferably, the device further comprises a roller arranged at the bottom of the ejector rod, and the roller is contacted with the profile of the cam.
Preferably, the elastic part is a spring, the elastic part is sleeved at the lower end of the ejector rod, the upper end of the spring is connected with the sleeve, and the lower end of the spring is connected with the ejector rod.
Preferably, the cam is arranged on one side of the lower end of the ejector rod, the cam further comprises a connecting rod, the rotating frame is arranged on the test frame at the middle position of the connecting rod, the two ends of the connecting rod are connected with rollers, one of the rollers is in contact with the lower end of the ejector rod, and the other roller is in contact with the profile surface of the cam.
Preferably, the test rack comprises a box body, the working platform is connected with the top of the box body, the cam is erected in the box body, and the bottom of the box body is connected with the leveling base.
Preferably, a thermocouple is arranged in the high-temperature furnace.
Compared with the prior art, the wide-temperature-range high-speed impact wear testing machine provided by the invention has the beneficial effects that:
1. the impact wear testing machine is in a modular design, is provided with the testing block mounting seat and the impact block mounting seat, is convenient to mount, dismount and subsequently upgrade, can be used for testing surface-surface contact impact wear under the condition that the testing material is randomly selected and replaced and is larger than 0 degree and smaller than 90 degrees.
2. The testing machine is provided with the thermocouple heating device capable of accurately controlling the temperature, and the thermocouple is separated from the working platform, so that the heating is prevented from being influenced by impact vibration in the testing process, the impact wear performance of the material at high temperature can be actually tested, and the impact wear behavior rule can be conveniently researched.
3. The testing machine is driven by the servo motor and the cam mechanism, has simple structure and high rigidity, does not have the phenomenon of testing precision reduction caused by structural member deformation, and simultaneously has controllable rotating speed of the servo motor and can adjust the impact frequency in a larger range.
4. The testing machine can test the impact wear of materials under different impact forces and different impact gap distances by arranging the double cams and adjusting the up-down moving interval of the ejector rod.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of a test block mounting base according to the present invention;
FIG. 3 is a schematic structural diagram of a test block according to the present invention;
FIG. 4 is a schematic view of the construction of the impact block of the present invention;
fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.
Description of reference numerals:
1. leveling the base; 2. a box body; 3. an elastic member; 4. a sleeve; 5. a top rod; 6. a threaded hole; 7. a test block mounting base; 8. an impact block mounting seat; 9. a thermocouple; 10. a high temperature furnace; 11. an impact block; 12. a test block; 13. a working platform; 14. a roller; 15. a cam; 16. mounting grooves; 17. testing the test surface of the block; 18. a test surface of the impact block; 19. a connecting rod.
Detailed Description
The following detailed description of the present invention is provided in conjunction with fig. 1 and 5, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Example 1
As shown in fig. 1 and 4, the wide temperature range high-speed impact wear testing machine provided by the invention comprises a testing frame, wherein a working platform 13 is arranged above the testing frame; be provided with high temperature furnace 10 on work platform 13, be provided with the impact test module in the high temperature furnace 10, the impact test module includes two test piece mount pad 7 that set up relatively, test piece mount pad 7 is connected with work platform 13, mounting groove 16 has been seted up on the test piece mount pad 7, installation test piece 12 in the mounting groove 16, set up threaded hole 6 on the test piece 12, install test piece 12 in mounting groove 16 through the bolt during use, 8 slip settings of impact piece mount pad are between two test piece mount pads 7, it is connected with impact block 11 to dismantle on the impact piece mount pad 8, actuating mechanism sets up on the test jig, actuating mechanism's output and impact block mount pad 8 are connected, be used for driving 8 up-and-down reciprocating motion of impact block mount pad.
During testing, the impact block testing surface 18 and the testing block testing surface 17 are opposite in pairs, so that surface-to-surface contact of the impact block testing surface and the testing block testing surface is ensured, and impact collision of valve closing on a valve seat in actual working conditions is simulated.
Furthermore, the driving mechanism comprises a cam mechanism, a driven piece of the cam mechanism is connected with the impact block mounting seat 8, a cam shaft of the cam mechanism is connected with a driving motor, the driving motor selects a servo motor,
further, cam mechanism includes ejector pin 5, sleeve 4, elastic component 3, cam 15, the one end and the impact block mount pad 8 of ejector pin 5 are connected, in addition one end is passed work platform 13 and is extended to work platform 13 below, sleeve 4 sets up in work platform 13 below, and the cover is established on ejector pin 5, the upper end and the work platform 13 of sleeve 4 are connected, elastic component 3 is connected between sleeve 4 and ejector pin 5, cam 15 erects on the test stand, camshaft connection has servo motor, the lower extreme of ejector pin 5 and the profile contact of cam 15, the through-hole has been seted up on work platform 13, ejector pin 5 passes from the through-hole.
Further, the device also comprises a roller 14 which is arranged at the bottom of the mandril 5, and the roller 14 is contacted with the contour surface of the cam 15. The roller 14 converts sliding friction between the mandril 5 and the cam 15 into rolling friction, so that the transmission efficiency is improved, and the abrasion of the cam 15 is reduced.
Furthermore, the elastic part 3 is a spring, which is sleeved at the lower end of the ejector rod 5, the upper end of the spring is connected with the sleeve 4, and the lower end is connected with the ejector rod 5.
Further, the test stand comprises a box body 2, the working platform 13 is connected with the top of the box body 2, the cam 15 is erected in the box body 2, and the bottom of the box body 2 is connected with the leveling base 1, so that the overall levelness of the test stand is guaranteed.
Wherein, the box body 2 is supported by a bracket made of structural steel, and the bracket is provided with a dust guard plate to protect the internal transmission mechanism and avoid dust falling.
Further, a thermocouple 9 is arranged in the high-temperature furnace 10, and the thermocouple 9 can accurately control the temperature, wherein the temperature range is 25-600 ℃.
Example 2
As shown in fig. 5, based on embodiment 1, the invention provides a wide temperature range high speed impact wear testing machine, wherein a cam 15 is arranged on one side of the lower end of a push rod 5, and the testing machine further comprises a connecting rod 19, wherein the middle position is rotatably erected on a test frame, two ends of the connecting rod 19 are connected with rollers 14, one roller 14 is in contact with the lower end of the push rod 5, and the other roller 14 is in contact with the contour surface of the cam 15.
A lever type connecting rod is designed and installed between a cam 15 and a push rod 5, the requirement on the torque power of a servo motor is reduced by utilizing the lever principle, during a test, when the cam 15 rotates until a cam curved surface is contacted with a roller 14, the roller 14 contacted with the cam 15 moves downwards, the roller 14 on the other side moves upwards, the push rod 5 moves upwards under the action of a connecting rod 19, when the cam 15 rotates until a cam base surface is contacted with the roller 14, the roller 14 on one side far away from the cam 15 moves downwards, the push rod 5 moves downwards under the action of a spring, and an impact block 11 collides with a test block 12.
Application method and working principle
When the wide-temperature-range high-speed impact wear testing machine is used, an impact block 11 is used as a valve sample, a test block 12 is used as a valve seat sample, the test block 12 is firstly installed on a test block installation seat 7, the impact block 11 is installed on an impact block installation seat 8, the test block installation seat 7 is fixed on a working platform 13 through bolts, an impact block test surface 18 and a test block test surface 17 are opposite in pairs, surface-to-surface contact of the two is ensured, impact collision of valve closing on a valve seat in an actual working condition is simulated, a cam mechanism controls the rotating speed through a servo motor, when a cam 15 rotates to a cam curve surface, an ejector rod 5 is upwards moved under an upward force, the valve sample is separated from the valve seat sample, and the actual valve opening process is simulated; when the cam 15 rotates to the base surface curved surface, the ejector rod 5 receives the restoring force of the spring, the valve test sample descends and is in contact collision with the valve seat test sample, and the actual valve closing process is simulated.
In conclusion, the impact wear testing machine is in a modular design, the testing block mounting seat and the impact block mounting seat are arranged, the installation, the disassembly and the subsequent upgrade are convenient, the testing material can be selected and replaced at will, and the surface-surface contact impact wear under the condition of more than 0 degrees and less than 90 degrees can be tested.
The above disclosure is only for the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (8)
1. The utility model provides a high-speed impact wear testing machine of wide temperature range which characterized in that includes:
the test stand is provided with a working platform (13) above;
the high-temperature furnace (10) is arranged on the working platform (13);
the impact test module is arranged in the high-temperature furnace (10) and comprises: the two opposite test block mounting seats (7) are connected with the working platform (13), and mounting grooves (16) are formed in the test block mounting seats (7); the test block (12) is arranged in the mounting groove (16) and is detachably connected with the test block mounting seat (7); the impact block mounting seat (8) is arranged between the two test block mounting seats (7) in a sliding manner, and an impact block (11) is detachably connected to the impact block mounting seat (8); and the driving mechanism is arranged on the test frame, and the output end of the driving mechanism is connected with the impact block mounting seat (8) and used for driving the impact block mounting seat (8) to reciprocate up and down.
2. The wide-temperature-range high-speed impact wear testing machine is characterized in that the driving mechanism comprises a cam mechanism, a driven piece of the cam mechanism is connected with the impact block mounting seat (8), and a cam shaft of the cam mechanism is connected with a driving motor.
3. A wide temperature range high speed impact wear tester according to claim 2, wherein said cam mechanism comprises:
one end of the ejector rod (5) is connected with the impact block mounting seat (8), and the other end of the ejector rod penetrates through the working platform (13) and extends to the position below the working platform (13);
the sleeve (4) is arranged below the working platform (13) and sleeved on the ejector rod (5), and the upper end of the sleeve (4) is connected with the working platform (13);
the elastic piece (3) is connected between the sleeve (4) and the ejector rod (5);
the cam (15) is erected on the test frame, the camshaft is connected with a servo motor, and the lower end of the ejector rod (5) is in contact with the outline of the cam (15).
4. A wide temperature range high speed impact wear testing machine according to claim 3, further comprising a roller (14) disposed at the bottom of the ram (5), wherein the roller (14) is in contact with the contour surface of the cam (15).
5. The wide temperature range high-speed impact wear testing machine according to claim 4, characterized in that the elastic member (3) is a spring, which is sleeved on the lower end of the ejector rod (5), the upper end of the spring is connected with the sleeve (4), and the lower end is connected with the ejector rod (5).
6. The wide temperature range high-speed impact wear testing machine according to claim 5, characterized in that the cam (15) is arranged on one side of the lower end of the ejector rod (5), the machine further comprises a connecting rod (19), the middle position rotating frame is arranged on the test frame, two ends of the connecting rod (19) are connected with the rollers (14), one of the rollers (14) is in contact with the lower end of the ejector rod (5), and the other roller (14) is in contact with the profile surface of the cam (15).
7. The wide-temperature-range high-speed impact wear testing machine is characterized in that the testing frame comprises a box body (2), the working platform (13) is connected with the top of the box body (2), the cam (15) is erected in the box body (2), and the bottom of the box body (2) is connected with the leveling base (1).
8. The wide temperature range high speed impact abrasion tester according to claim 1, wherein a thermocouple (9) is provided in said high temperature furnace (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111500328.6A CN114199709B (en) | 2021-12-09 | 2021-12-09 | Wide-temperature-range high-speed impact abrasion testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111500328.6A CN114199709B (en) | 2021-12-09 | 2021-12-09 | Wide-temperature-range high-speed impact abrasion testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114199709A true CN114199709A (en) | 2022-03-18 |
| CN114199709B CN114199709B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111500328.6A Active CN114199709B (en) | 2021-12-09 | 2021-12-09 | Wide-temperature-range high-speed impact abrasion testing machine |
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| CN (1) | CN114199709B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116810104A (en) * | 2023-06-25 | 2023-09-29 | 东台市新杰科机械有限公司 | Plasma cutting equipment is used in iron component processing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2842407Y (en) * | 2005-09-27 | 2006-11-29 | 中国矿业大学 | Impaction and friction wear testing machine |
| KR20070101521A (en) * | 2006-04-11 | 2007-10-17 | 신한발브공업(주) | Engine valve abrasion tester |
| CN204514741U (en) * | 2015-04-09 | 2015-07-29 | 华南理工大学 | A kind of valve wear proving installation |
| CN105716980A (en) * | 2016-03-24 | 2016-06-29 | 华南理工大学 | Rocker arm type valve wear test device |
| CN106442191A (en) * | 2016-08-15 | 2017-02-22 | 华南理工大学 | Air valve wear test device |
| CN112782017A (en) * | 2020-12-22 | 2021-05-11 | 中国北方发动机研究所(天津) | Valve-valve seat ring reinforced wear test system |
-
2021
- 2021-12-09 CN CN202111500328.6A patent/CN114199709B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2842407Y (en) * | 2005-09-27 | 2006-11-29 | 中国矿业大学 | Impaction and friction wear testing machine |
| KR20070101521A (en) * | 2006-04-11 | 2007-10-17 | 신한발브공업(주) | Engine valve abrasion tester |
| CN204514741U (en) * | 2015-04-09 | 2015-07-29 | 华南理工大学 | A kind of valve wear proving installation |
| CN105716980A (en) * | 2016-03-24 | 2016-06-29 | 华南理工大学 | Rocker arm type valve wear test device |
| CN106442191A (en) * | 2016-08-15 | 2017-02-22 | 华南理工大学 | Air valve wear test device |
| CN112782017A (en) * | 2020-12-22 | 2021-05-11 | 中国北方发动机研究所(天津) | Valve-valve seat ring reinforced wear test system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116810104A (en) * | 2023-06-25 | 2023-09-29 | 东台市新杰科机械有限公司 | Plasma cutting equipment is used in iron component processing |
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| CN114199709B (en) | 2024-04-02 |
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