CN111896409A - Fretting friction wear testing machine - Google Patents
Fretting friction wear testing machine Download PDFInfo
- Publication number
- CN111896409A CN111896409A CN202010735035.5A CN202010735035A CN111896409A CN 111896409 A CN111896409 A CN 111896409A CN 202010735035 A CN202010735035 A CN 202010735035A CN 111896409 A CN111896409 A CN 111896409A
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- lead screw
- sliding
- sample
- voice coil
- screw
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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
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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
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0423—Chucks, fixtures, jaws, holders or anvils using screws
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a fretting friction wear testing machine, which comprises a rack, a driving mechanism and a loading mechanism, wherein the driving mechanism and the loading mechanism are arranged on the rack, the driving mechanism is matched with the loading mechanism to realize a friction test, and the driving mechanism comprises a substrate, a voice coil motor, a transverse sliding assembly, a sample mounting plate and a water tank; the loading mechanism comprises a support, a lead screw sliding seat, a three-dimensional force sensor and a sample ball clamp. The sliding mechanism is simple in structure, and the voice coil motor drives the sliding mechanism to slide left and right, so that the sample plate and the water tank slide left and right; the voice coil motor is used as a power source, and the sliding block and the linear sliding rail are used as sliding components, so that the structural complexity is further reduced; the position of the screw rod is fixed through the fixed cross beam, and the screw rod is rotated, so that force in the vertical direction is loaded on a sample; the screw sliding seat is arranged, so that the up-and-down movement stability of the screw is ensured, and the force loaded on the sample by the screw is ensured in the vertical direction.
Description
Technical Field
The invention relates to the technical field of testing machines, in particular to a fretting friction wear testing machine.
Background
At present, most of devices adopted in friction and wear tests adopt ball-disc type or pin-disc type friction testing machines, and taking the pin-disc type friction testing machine as an example, the traditional pin-disc type friction testing machine rotates a disc and does not move the pin during working.
For example, chinese patent document CN103308409A discloses a rotating disc type multi-sample synchronous friction and wear test device, which includes a driving device for outputting torque, a friction disc fixed on the output end of the driving device, a grinding head eccentrically disposed above the friction disc, and a Z-direction loading device assembled on the grinding head, wherein the friction disc is composed of a disc body and a test piece fixed thereon, so that the disc body of the friction disc is used as a movable seat for mounting the test piece, and the corresponding grinding head is used as a reference member for testing.
During the test, drive the sample piece revolution through drive arrangement, Z can compress tightly the bistrique on the sample piece to the loading device simultaneously, along with the rotation of friction disc, the bistrique constantly rubs on the surface of friction disc, connect the frictional force data between friction disc and the bistrique in the test procedure by the sampling on the loading device of Z again, gather the real-time current data in the test procedure through pasting resistance card and friction disc and the power and the signal acquisition circuit who is connected on the friction disc of establishing on the friction disc and friction disc, and with frictional force data and current data transmission to the computer, calculate the coefficient of friction disc by the computer.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a fretting friction wear testing machine.
The technical scheme of the invention is as follows: a fretting friction wear testing machine comprises a rack, a driving mechanism and a loading mechanism, wherein the driving mechanism and the loading mechanism are arranged on the rack, and the driving mechanism and the loading mechanism are matched to realize a friction test.
Preferably, actuating mechanism include the base plate and set up voice coil motor, the lateral sliding subassembly on the base plate, the base plate install in the frame, the voice coil motor pass through motor coupling rod and be connected with the lateral sliding subassembly, the lateral sliding subassembly on be provided with the sample mounting panel, the sample mounting panel on be provided with the basin.
Preferably, the voice coil motor is arranged on the substrate through a motor mounting plate.
Preferably, the transverse sliding assembly comprises a linear sliding rail, a linear sliding rail mounting seat and a driving connecting frame, the linear sliding rail mounting seat is arranged on the substrate, two linear sliding rails are arranged on the linear sliding rail mounting seat in parallel, and the driving connecting frame is arranged on the linear sliding rails through corresponding sliding blocks.
Preferably, the sample mounting plate is provided on the driving connection frame.
Preferably, the voice coil motor is connected with the driving connecting frame through a motor connecting rod, and the voice coil motor transversely moves through the driving motor connecting rod, so that the driving connecting frame, the sample mounting plate and the water tank are controlled to move left and right.
Preferably, the loading mechanism comprises a bracket and a lead screw, the bracket is arranged on the base plate, the lead screw is arranged on the bracket through a fixed cross beam, and the lead screw can move up and down on the fixed cross beam through a lead screw nut; the lower end of the lead screw penetrates through the lead screw sliding seat and is connected with the sensor connecting piece, the lower end of the sensor connecting piece is provided with a three-dimensional force sensor, and the lower end of the three-dimensional force sensor is provided with a sample ball clamp.
Preferably, the screw is fixed on the screw sliding seat through a screw fixing nut, and the screw sliding seat is connected with a guide rail arranged on the bracket.
Preferably, a connecting disc is further arranged between the sensor connecting piece and the screw sliding seat, the connecting disc is fixed on the screw sliding seat through a fixing bolt, and the sensor connecting piece is fixed on the connecting disc through a fixing bolt.
Preferably, a sensor connecting disc is further arranged between the lower end of the three-dimensional force sensor and the sample ball clamp, and the sample ball clamp is inserted into the sensor connecting disc and locked through a locking nut.
Preferably, the upper end of the screw rod is further provided with a handle, the screw rod is rotated through the handle, and the screw rod moves up and down on the fixed cross beam through a screw rod nut, so that the screw rod sliding seat is driven to move up and down on the guide rail, and the sample ball clamp is driven to move up and down.
The invention has the beneficial effects that:
1. the sliding mechanism is simple in structure, and the voice coil motor drives the sliding mechanism to slide left and right, so that the sample plate and the water tank slide left and right;
2. the voice coil motor is used as a power source, and the slide block and the linear slide rail are used as slide components, so that the structural complexity is further reduced;
3. the position of the screw rod is fixed through the fixed cross beam, and the screw rod is rotated, so that force in the vertical direction is loaded on a sample;
4. the screw sliding seat is arranged, so that the up-and-down movement stability of the screw is ensured, and the force loaded on the sample by the screw is ensured in the vertical direction.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the driving mechanism of the present invention;
FIG. 3 is a schematic structural diagram of a loading mechanism of the present invention;
in the figure, 1-a rack, 2-a base plate, 3-a voice coil motor, 4-a motor mounting plate, 5-a motor connecting rod, 6-a linear slide rail mounting seat, 7-a driving connecting frame, 8-a linear slide rail, 9-a slide block, 10-a sample mounting plate and 11-a water tank;
12-bracket, 13-screw rod, 14-fixed beam, 15-screw rod nut, 16-screw rod slide carriage, 17-connecting disc, 18-sensor connecting piece, 19-guide rail, 20-sensor connecting disc, 21-sample ball clamp, 22-handle and 23-three-dimensional force sensor.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in figure 1, the fretting friction wear testing machine comprises a machine frame 1, a driving mechanism and a loading mechanism, wherein the driving mechanism is arranged on the machine frame 1, and the driving mechanism is matched with the loading mechanism to realize a friction test. In this embodiment, the lower end of the frame is provided with a support leg.
Preferably, as shown in fig. 2, the driving mechanism includes a substrate 2, a voice coil motor 3 disposed on the substrate 2, and a lateral sliding assembly, wherein the substrate 2 is mounted on the frame 1, and the voice coil motor 3 is disposed on the substrate 2 through a motor mounting plate 4. The voice coil motor 3 is connected with the transverse sliding assembly through a motor connecting rod 5, a sample mounting plate 10 is arranged on the transverse sliding assembly, and a water tank 11 is arranged on the sample mounting plate 10.
Preferably, the lateral sliding component of this embodiment includes linear slide rail 8, linear slide rail mount pad 6, drive connection frame 7, linear slide rail mount pad 6 set up on base plate 1, linear slide rail mount pad 6 on parallel arrangement have two linear slide rails 8, drive connection frame 7 through corresponding slider 9 setting on linear slide rail 8. The sample mounting plate 10 is provided on the drive connection frame 7. The voice coil motor 3 is connected with the driving connecting frame 7 through the motor connecting rod 5, and the voice coil motor 3 transversely moves through the driving motor connecting rod 5, so that the driving connecting frame 7, the sample mounting plate 10 and the water tank 11 are controlled to move left and right.
Preferably, as shown in fig. 3, the loading mechanism includes a support 12 and a lead screw 13, in this embodiment, the support 12 is composed of two symmetrically arranged supports, and the two supports are arranged on the substrate 2. The fixed cross beam 14 is arranged at the upper end of the two supports. The lead screw 13 is arranged on the bracket 12 through a fixed cross beam 14, and in the embodiment, the lead screw 13 can move up and down on the fixed cross beam 14 through a lead screw nut 15.
The lower end of the lead screw 13 extends downwards through the lead screw sliding seat 16 and is connected with the connecting disc 17, the connecting disc 17 is fixed on the lead screw sliding seat 16 through a fixing bolt, the lead screw sliding seat 16 is connected with a guide rail 19 arranged on the bracket 12, and the lead screw 13 is fixed on the lead screw sliding seat 16 through a lead screw fixing nut.
Preferably, the lower end of the coupling disk 17 is provided with a sensor connecting piece 18, and the sensor connecting piece 18 is fixed on the coupling disk 17 through a fixing bolt. The lower end of the sensor connecting piece 18 is provided with a three-dimensional force sensor 23, the lower end of the three-dimensional force sensor 23 is provided with a sample ball clamp 21, and a sample ball is installed in the sample ball clamp 21.
Preferably, a sensor connecting disc 20 is further arranged between the three-dimensional force sensor 23 and the sample ball clamp 21, and the upper end of the sample ball clamp 21 is inserted into the sensor connecting disc 20 and locked by a locking nut.
Preferably, a handle 22 is further disposed at the upper end of the screw 13, the screw 13 is rotated by the handle 22, and the screw 13 moves up and down on the fixed cross beam 14 through the screw nut 15, so as to drive the screw slide 16 to move up and down on the guide rail 19, and thus drive the sample ball clamp 21 to move up and down. This embodiment applies a force in the vertical direction to the sample by rotating the lead screw 13.
The foregoing embodiments and description have been presented only to illustrate the principles and preferred embodiments of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as hereinafter claimed.
Claims (10)
1. A fretting friction wear testing machine which is characterized in that: the friction test device comprises a rack, a driving mechanism and a loading mechanism, wherein the driving mechanism and the loading mechanism are arranged on the rack and are matched with each other to realize a friction test;
the driving mechanism comprises a substrate, a voice coil motor and a transverse sliding assembly, wherein the voice coil motor and the transverse sliding assembly are arranged on the substrate;
the loading mechanism comprises a bracket and a lead screw, the bracket is arranged on the base plate, the lead screw is arranged on the bracket through a fixed cross beam, and the lead screw can move up and down on the fixed cross beam through a lead screw nut;
the lower end of the lead screw penetrates through the lead screw sliding seat and is connected with the sensor connecting piece, the lower end of the sensor connecting piece is provided with a three-dimensional force sensor, and the lower end of the three-dimensional force sensor is provided with a sample ball clamp.
2. The fretting wear tester according to claim 1, wherein: the voice coil motor is arranged on the substrate through the motor mounting plate, and the substrate is mounted on the rack.
3. The fretting wear tester according to claim 1, wherein: the transverse sliding assembly comprises linear sliding rails, a linear sliding rail mounting seat and a driving connecting frame, the linear sliding rail mounting seat is arranged on the base plate, the linear sliding rail mounting seat is provided with two linear sliding rails in parallel, and the driving connecting frame is arranged on the linear sliding rails through corresponding sliding blocks.
4. The fretting wear tester according to claim 1, wherein: the sample mounting plate is arranged on the driving connecting frame.
5. The fretting wear tester according to claim 4, wherein: the driving connection frame is connected with the voice coil motor through the motor connection rod, and the voice coil motor moves transversely through the driving motor connection rod, so that the driving connection frame, the sample mounting plate and the water tank are controlled to move left and right.
6. The fretting wear tester according to claim 1, wherein: the lead screw is fixed on the lead screw sliding seat through a lead screw fixing nut.
7. The fretting wear tester according to claim 6, wherein: the lead screw sliding seat is connected with a guide rail arranged on the bracket.
8. The fretting wear tester according to claim 1, wherein: a connecting disc is also arranged between the sensor connecting piece and the lead screw sliding seat;
the connecting disc is fixed on the lead screw sliding seat through a fixing bolt;
the sensor connecting piece is fixed on the connecting disc through a fixing bolt.
9. The fretting wear tester according to claim 1, wherein: a sensor connecting disc is also arranged between the lower end of the three-dimensional force sensor and the sample ball clamp;
and the sample ball clamp is inserted into the sensor connecting disc and is locked by a locking nut.
10. The fretting wear tester according to claim 1, wherein: the upper end of the screw rod is also provided with a handle, the screw rod is rotated by the handle, and the screw rod moves up and down on the fixed cross beam through a screw rod nut, so that the screw rod sliding seat is driven to move up and down on the guide rail, and the sample ball clamp is driven to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010735035.5A CN111896409A (en) | 2020-07-28 | 2020-07-28 | Fretting friction wear testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010735035.5A CN111896409A (en) | 2020-07-28 | 2020-07-28 | Fretting friction wear testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111896409A true CN111896409A (en) | 2020-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010735035.5A Pending CN111896409A (en) | 2020-07-28 | 2020-07-28 | Fretting friction wear testing machine |
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|---|---|
| CN (1) | CN111896409A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577891A (en) * | 2020-12-11 | 2021-03-30 | 中国汽车工程研究院股份有限公司 | Screw rod type loading compression bar of material friction abnormal sound test bed |
| CN112730127A (en) * | 2020-12-11 | 2021-04-30 | 江苏大学 | Multi-working-condition ring block friction testing machine |
| CN112945555A (en) * | 2021-02-20 | 2021-06-11 | 青岛科技大学 | Vacuum reciprocating type heavy-load friction testing machine |
| CN113686656A (en) * | 2021-10-11 | 2021-11-23 | 扬州大学 | Multifunctional weight loading friction wear testing machine |
-
2020
- 2020-07-28 CN CN202010735035.5A patent/CN111896409A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112577891A (en) * | 2020-12-11 | 2021-03-30 | 中国汽车工程研究院股份有限公司 | Screw rod type loading compression bar of material friction abnormal sound test bed |
| CN112730127A (en) * | 2020-12-11 | 2021-04-30 | 江苏大学 | Multi-working-condition ring block friction testing machine |
| CN112730127B (en) * | 2020-12-11 | 2022-08-23 | 江苏大学 | Multi-working-condition ring block friction testing machine |
| CN112577891B (en) * | 2020-12-11 | 2024-05-14 | 中国汽车工程研究院股份有限公司 | Screw type loading compression bar of material friction abnormal sound test bed |
| CN112945555A (en) * | 2021-02-20 | 2021-06-11 | 青岛科技大学 | Vacuum reciprocating type heavy-load friction testing machine |
| CN113686656A (en) * | 2021-10-11 | 2021-11-23 | 扬州大学 | Multifunctional weight loading friction wear testing machine |
| CN113686656B (en) * | 2021-10-11 | 2024-05-03 | 扬州大学 | Multifunctional weight loading friction and wear testing machine |
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