CN114324039A - Bucket tooth rapid wear testing machine - Google Patents
Bucket tooth rapid wear testing machine Download PDFInfo
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- CN114324039A CN114324039A CN202111468906.2A CN202111468906A CN114324039A CN 114324039 A CN114324039 A CN 114324039A CN 202111468906 A CN202111468906 A CN 202111468906A CN 114324039 A CN114324039 A CN 114324039A
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 230000008859 change Effects 0.000 claims abstract description 7
- 238000005299 abrasion Methods 0.000 claims description 16
- 238000009661 fatigue test Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 2
- 208000004188 Tooth Wear Diseases 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 208000002697 Tooth Abrasion Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention discloses a bucket tooth rapid wear testing machine which comprises a bottom plate, a motor, a transmission box, a control console, a friction disc base, a friction disc, a tooth holder and a loading system, wherein the friction disc base is connected with a transmission shaft, and calipers are arranged on the friction disc base and used for fixing the friction disc. The toothholder is installed in the sleeve, can take place relative motion with the sleeve, among the loading system, the vibration exciter is fixed with the movable disc by the toothholder, with vibration transmission to the toothholder, intermediate disk and jackshaft circumference are fixed, but the axial is slided, transmission pneumatic cylinder effort. The hydraulic cylinder is arranged on the tailstock. When the test bench works, the bucket teeth are in contact with the friction disc under the action of the hydraulic cylinder and the vibration exciter, the motor drives the friction disc to rotate through the transmission box, accelerated wear tests are conducted on the bucket teeth, and the change of the acting force of the hydraulic cylinder and the vibration characteristic of the vibration exciter can be controlled by the console, so that the actual operation working condition of the bucket teeth is simulated.
Description
Technical Field
The invention relates to the technical field of engineering machinery and test equipment, in particular to a bucket tooth rapid wear test device.
Background
The bucket tooth is a common part of an engineering mechanical working device and is used for improving the reliability of the engineering mechanical device under a complex working condition and the shovel loading and excavating performance, so that the working efficiency is improved. Due to the complex and severe operating environment, the rapid abrasion and easy fatigue fracture of the bucket teeth are the biggest defects of the existing products. Therefore, the fatigue and abrasion detection test of the bucket teeth is very important.
The existing bucket tooth abrasion test device mainly comprises three types: the main defects of the material type 200620149250.2, the grinding disc type 201922426705.0 and the connecting rod type 202022181391.5 are that the material type 200620149250.2, the grinding disc type 201922426705.0 and the connecting rod type 202022181391.5 cannot be associated with the bucket tooth running track under the actual operation of a user, namely the bucket tooth test working condition is single, and the test result is greatly different from the actual use; the abrasion condition of the bucket teeth after a certain using time cannot be obtained; fatigue damage of the bucket teeth is not involved.
Disclosure of Invention
The invention aims to solve the problems that the test device cannot be associated with a user and can not evaluate the operation performance of the worn bucket tooth and the fatigue test of the bucket tooth, and provides a bucket tooth rapid wear test machine.
A bucket tooth rapid wear testing machine, it includes: the device comprises a bottom plate 1, a control console 4, a friction loading system and an axial loading system;
the friction loading system comprises: the friction disc type motor comprises a motor 2, a transmission case 3, a transmission shaft 5, a friction disc supporting seat 6 and a friction disc 8;
the motor 2 and the transmission case 3 are fixed on the bottom plate 1, the friction disc support seat 6 is fixed on the transmission shaft 5, and the friction disc 8 is arranged on the friction disc support seat 6;
the axial loading system comprises: the tail seat 15, the intermediate shaft 14, the hydraulic cylinder 13, the intermediate disc 12, the vibration exciter 11 and the tooth seat 10;
the tail seat 15 is fixed on the bottom plate 1;
the tail part of the intermediate shaft 14 is fixed on the tailstock 15;
the intermediate disc 12 is sleeved on the intermediate shaft 14, is fixed with the intermediate shaft 14 in the circumferential direction and can slide in the axial direction;
the base of the hydraulic cylinder 13 is fixed on the tailstock 15, and the top of the hydraulic cylinder is fixed on the intermediate disc 12;
the toothholder 10 is arranged on the middle disc 12 and fixedly connected with the middle disc;
the axial loading system is also provided with a vibration exciter 11; the vibration exciter 11 is fixedly arranged on the middle disc 12, and the toothholder 10 is arranged on the vibration exciter 11.
The axial loading system is also provided with a supporting seat 151, and the supporting seat 151 is fixed on the bottom plate 1 and is fixed after being sleeved with the intermediate shaft 14; the supporting seat 151 or the intermediate shaft 14 is provided with a sleeve 9, and the sleeve 9 is connected with the tooth seat 10 in a sliding manner;
the middle shaft 14 is provided with a key groove 18, and the tail part of the middle shaft 14 is in interference fit with the tailstock 15; the middle disc 12 is provided with a sliding rail matched with the key slot 18; the support seat 151 is fixed with the intermediate shaft 14 through a key pin;
the bottom of the hydraulic cylinder 13 is fixed on the tailstock 14 through a screw, and the top of the hydraulic cylinder is fixed through a clamping plate 20 with a pin shaft and the intermediate disc 12;
the vibration exciter 11 is fixed on the intermediate disc 12 through a rotary joint 17 with a pin shaft;
the friction disc support seat 6 is provided with a caliper 7 and a fixed column 16; the friction disc 8 is provided with a fixing hole matched with the fixing column 16; the caliper includes: the clamp seat 7, the rotary clamping plate 22 and the fixing screw 21; the caliper holds the outer periphery of the friction disk 8.
The friction disks 8 are multiple, and the working areas of the friction disks are planes or curved surfaces attached to bucket teeth respectively;
the tooth holder 10 is provided with a plurality of tooth holders, and after the bucket teeth are installed, the bucket teeth surfaces are respectively attached to the friction discs 8 in different directions.
10. A bucket tooth rapid wear test method comprises the following steps: the bucket tooth rapid wear testing machine is adopted;
1 abrasion test
S1, before a wear test is carried out, acquiring a real-time bucket tooth resistance curve of an excavator associated with a user, decomposing the resistance curve into a smooth part and a vibration part after noise reduction treatment, and respectively inputting the separated curves into an upper computer system;
s2, installing corresponding bucket teeth on a tooth holder 10 through pin shafts, operating a control console 4 to enable a friction disc 8 to rotate in a manner of clinging to the bucket teeth, and loading periodic axial acting force and vibration by matching a hydraulic cylinder (13) and a vibration exciter (11);
s3, after repeating the steps for a certain number of times, replacing the tooth holder 10 and the friction disc 8 to change the curved surface shapes of the bucket tooth wear surface and the friction disc, and loading for the same time or period number;
s4, evaluating the abrasion effect of the bucket teeth to obtain real-time abrasion performance degradation data of the bucket teeth;
2) fatigue test
S1, collecting real-time bucket tooth acting force of an excavator associated with a user, and inputting the acting force into an upper computer system after noise reduction processing;
s2, mounting bucket teeth, locking the friction disc 8 to be non-rotating, and enabling the bucket teeth to be in static contact with the friction disc 8;
s3, repeatedly loading a vibration curve by the vibration exciter 11, and evaluating a test result;
3) the friction disc 8 is not locked and the wear test are performed simultaneously.
The invention provides a bucket tooth rapid wear testing machine which comprises a bottom plate, a motor, a transmission box, a control console, a friction disc base, a friction disc, a tooth holder and a loading system, wherein the friction disc base is connected with a transmission shaft, and calipers are arranged on the friction disc base and used for fixing the friction disc. The toothholder is installed in the sleeve, can take place relative motion with the sleeve, among the loading system, the vibration exciter is fixed with the movable disc by the toothholder, with vibration transmission to the toothholder, intermediate disk and jackshaft circumference are fixed, but the axial is slided, transmission pneumatic cylinder effort. The hydraulic cylinder is arranged on the tailstock. When the test bench works, the bucket teeth are in contact with the friction disc under the action of the hydraulic cylinder and the vibration exciter, the motor drives the friction disc to rotate through the transmission box, accelerated wear tests are conducted on the bucket teeth, and the change of the acting force of the hydraulic cylinder and the vibration characteristic of the vibration exciter can be controlled by the console, so that the actual operation working condition of the bucket teeth is simulated.
The invention has the technical effects and advantages that:
1) the rapid abrasion can be realized by adjusting the rotating speed of the friction disc, and the working area of the friction disc can be set to be a curved surface, so that the friction area is increased.
2) The loading characteristics of the hydraulic cylinder and the vibration exciter can be controlled by the control console and the upper computer, the hydraulic cylinder and the vibration exciter are matched for use according to the change of friction force borne by one working cycle of the bucket tooth, the smooth stress curve and vibration are loaded respectively, the loading characteristic acts on the bucket tooth in a synthesis mode, and the actual working condition of the bucket tooth can be simulated.
3) The toothholder is removable, can realize bucket tooth multiaspect wear test.
4) After the friction disk base is locked, the tooth tips of the bucket tooth installation mode are replaced to face the friction disk, the vibration exciter and the hydraulic cylinder load the axial stress curve of the bucket tooth, the bucket tooth fatigue test can be carried out, and the purposes of one machine and multiple purposes are achieved.
Drawings
FIG. 1 is a schematic overall view of a bucket tooth rapid wear testing machine of the present invention;
FIG. 2 is a top view of the bucket tooth rapid wear testing machine of the present invention;
FIG. 3 is a friction disk base of a bucket tooth rapid wear tester;
FIG. 4 is a curved friction disk of a bucket tooth rapid wear tester;
FIG. 5 is an assembly view of an intermediate disk and an intermediate shaft of the bucket tooth rapid wear testing machine;
FIG. 6 is an intermediate shaft of a bucket tooth rapid wear tester;
FIG. 7 is a reverse side view of a friction disk of a bucket tooth rapid wear tester;
FIG. 8 is an assembly view of a caliper of a bucket tooth rapid wear tester;
FIG. 9 is a caliper of a bucket tooth rapid wear tester;
FIG. 10 is a tooth holder of a bucket tooth rapid wear testing machine;
fig. 11 is a bucket tooth resistance diagram of a bucket tooth rapid wear tester.
In the figure: 1. a base plate; 2. a motor; 3. a transmission case; 4. a console; 5. a drive shaft; 6. a friction disk base; 7. a caliper; 8. a friction disk; 9. a sleeve; 10. a tooth holder; 11. a vibration exciter; 12. an intermediate tray; 13. a hydraulic cylinder; 14. an intermediate shaft; 15. a tailstock; 151 supporting a seat; 16. fixing a column; 17. a rotary joint with a pin shaft; 18. a keyway; 19. a connecting rod; 20. a clamping plate with a pin shaft; 21. a set screw; 22. the chuck plate is rotated.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments
Embodiment 1 quick wear testing machine of bucket tooth
Referring to fig. 1-11, a bucket tooth rapid wear tester includes: the device comprises a bottom plate 1, a control console 4, a friction loading system and an axial loading system;
the friction loading system comprises: the friction disc type motor comprises a motor 2, a transmission case 3, a transmission shaft 5, a friction disc supporting seat 6 and a friction disc 8;
the motor 2 and the transmission case 3 are fixed on the bottom plate 1, the friction disc support seat 6 is fixed on the transmission shaft 5, and the friction disc 8 is arranged on the friction disc support seat 6;
the axial loading system comprises: the tail seat 15, the intermediate shaft 14, the hydraulic cylinder 13, the intermediate disc 12, the vibration exciter 11 and the tooth seat 10;
the tail seat 15 is fixed on the bottom plate 1;
the tail part of the intermediate shaft 14 is fixed on the tailstock 15;
the intermediate disc 12 is sleeved on the intermediate shaft 14, is fixed with the intermediate shaft 14 in the circumferential direction and can slide in the axial direction;
the base of the hydraulic cylinder 13 is fixed on the tailstock 15, and the top of the hydraulic cylinder is fixed on the intermediate disc 12;
the toothholder 10 is arranged on the middle disc 12 and fixedly connected with the middle disc;
the axial loading system is also provided with a vibration exciter 11; the vibration exciter 11 is fixedly arranged on the middle disc 12, and the toothholder 10 is arranged on the vibration exciter 11.
The axial loading system is also provided with a supporting seat 151, and the supporting seat 151 is fixed on the bottom plate 1 and is fixed after being sleeved with the intermediate shaft 14; the supporting seat 151 or the intermediate shaft 14 is provided with a sleeve 9, and the sleeve 9 is connected with the tooth seat 10 in a sliding manner;
the middle shaft 14 is provided with a key groove 18, and the tail part of the middle shaft 14 is in interference fit with the tailstock 15; the middle disc 12 is provided with a sliding rail matched with the key slot 18; the support seat 151 is fixed with the intermediate shaft 14 through a key pin;
the bottom of the hydraulic cylinder 13 is fixed on the tailstock 14 through a screw, and the top of the hydraulic cylinder is fixed through a clamping plate 20 with a pin shaft and the intermediate disc 12;
the vibration exciter 11 is fixed on the intermediate disc 12 through a rotary joint 17 with a pin shaft;
the friction disc support seat 6 is provided with a caliper 7 and a fixed column 16; the friction disc 8 is provided with a fixing hole matched with the fixing column 16; the caliper includes: the clamp seat 7, the rotary clamping plate 22 and the fixing screw 21; the caliper holds the outer periphery of the friction disk 8.
The friction disks 8 are multiple, and the working areas of the friction disks are planes or curved surfaces attached to bucket teeth.
The tooth holder 10 is provided with a plurality of tooth holders, and after the bucket teeth are installed, the bucket teeth surfaces are respectively attached to the friction discs 8 in different directions.
The motor is fixed on the bottom plate through screws and is connected into the transmission case through gear transmission;
the clamping seat is provided with a mounting hole and is fixed on the friction disc base through a screw;
the rotating clamping plate on the clamping seat is rotated, the friction disc is placed in the rotating clamping plate, the fixing screw rod on the clamping plate is fastened, and the fixing column on the base of the friction disc and the clamping seat can realize complete fixation of the friction disc;
the intermediate shaft is in interference fit with the tailstock to completely fix the intermediate shaft;
after the hydraulic cylinder is preliminarily fixed on the tailstock through a screw, the middle keyboard is sleeved into the middle shaft, and the top end of the piston of the hydraulic cylinder is fixed with the middle keyboard through a clamping plate with a pin shaft;
the tail end of the vibration exciter is fixed with the rotary joint through a pin shaft, and after the tooth holder is sleeved in the sleeve, the tail end of the tooth holder is fixed with the vibration rod of the vibration exciter through a nut;
after the bucket tooth is sleeved in the tooth holder, the pin shaft is inserted, and complete fixation can be realized.
The intermediate disk and the tooth holder can respectively axially slide relative to the intermediate shaft and the sleeve to transmit force and vibration.
The loading characteristics of the hydraulic cylinder and the vibration exciter can be controlled by the control console and the upper computer, the hydraulic cylinder loads a smooth stress curve according to the change of friction force borne by one working cycle of the bucket tooth, and the vibration exciter loads vibration and can simulate the actual working condition of the bucket tooth after synthesis.
The bucket tooth is installed on the tooth holder in various modes, and friction tests can be performed on all surfaces of the bucket tooth.
The working area of the friction disc can be in a curved surface shape attached to the bucket teeth, and the abrasion effect is more consistent with the actual working condition.
After the friction disc base is locked, the tooth tips of the bucket tooth installation mode are replaced to face the friction disc, and the vibration exciter and the hydraulic cylinder load an axial stress curve of the bucket tooth, so that a bucket tooth fatigue test can be performed.
Example 3
The invention mainly aims to detect the wear life of the bucket teeth and evaluate the real-time bucket tooth wear mechanism, and also aims to detect the fatigue of the bucket teeth. The abrasion curve of the bucket tooth can be accurately obtained, the test speed can be defined by users, and the time and cost required by the whole machine test are saved.
Abrasion test
The method comprises the steps of firstly, before a wear test is carried out, acquiring a real-time bucket tooth resistance curve of an excavator associated with a user, decomposing the resistance curve into a smooth part and a vibration part after noise reduction treatment, and inputting the separated curves into an upper computer system respectively.
And step two, installing corresponding bucket teeth on the tooth holder 10 through pin shafts, operating the control console 4 to enable the friction disc 8 to be tightly attached to the bucket teeth and rotate at a certain speed, and loading periodic acting force and vibration by matching the hydraulic cylinder 13 and the vibration exciter 11.
And step three, after the steps are repeated for a certain number of times, replacing the tooth holder 10 and the friction disc 8 to change the curved surface shapes of the bucket tooth wear surface and the friction disc, and loading the same time or period number to achieve the real-time wear detection effect.
And step four, evaluating the abrasion effect of the bucket teeth to obtain real-time abrasion performance degradation data of the bucket teeth.
Fatigue test
Firstly, fatigue damage of bucket teeth is mainly caused by vibration, the real-time bucket tooth acting force of an excavator associated with a user is collected before a fatigue test is carried out, and the excavator is input into an upper computer system after noise reduction treatment.
And step two, mounting the bucket teeth, locking the friction disc 8 to be non-rotating, and enabling the bucket teeth to be in static contact with the friction disc 8.
And step three, repeatedly loading the vibration curve by the vibration exciter 11 to finish, and evaluating the test result.
Claims (10)
1. The utility model provides a quick abrasion tester of bucket tooth which characterized in that, it includes: the device comprises a bottom plate (1), a console (4), a friction loading system and an axial loading system;
the friction loading system comprises: the friction disc type clutch comprises a motor (2), a transmission case (3), a transmission shaft (5), a friction disc supporting seat (6) and a friction disc (8);
the motor (2) and the transmission case (3) are fixed on the bottom plate (1), the friction disc supporting seat (6) is fixed on the transmission shaft (5), and the friction disc (8) is arranged on the friction disc supporting seat (6);
the axial loading system comprises: the vibration exciter comprises a tailstock (15), an intermediate shaft (14), a hydraulic cylinder (13), an intermediate disc (12), a vibration exciter (11) and a toothholder (10);
the tail seat (15) is fixed on the bottom plate (1);
the tail part of the intermediate shaft (14) is fixed on the tailstock (15);
the middle disc (12) is sleeved on the middle shaft (14), is fixed with the middle shaft (14) in the circumferential direction and can slide in the axial direction;
the base of the hydraulic cylinder (13) is fixed on the tailstock (15), and the top of the hydraulic cylinder is fixed on the middle disc (12);
the toothholder (10) is arranged on the middle disc (12) and is fixedly connected.
2. The bucket tooth rapid wear testing machine according to claim 1, characterized in that: the axial loading system is also provided with a vibration exciter (11); the vibration exciter (11) is fixedly arranged on the middle disc (12), and the tooth holder (10) is arranged on the vibration exciter (11).
3. The bucket tooth rapid wear testing machine according to claim 2, characterized in that: the axial loading system is also provided with a supporting seat (151), and the supporting seat (151) is fixed on the bottom plate (1) and is fixed after being sleeved with the intermediate shaft (14); a sleeve (9) is arranged on the supporting seat (151) or the intermediate shaft (14), and the sleeve (9) is connected with the tooth seat (10) in a sliding way.
4. The bucket tooth rapid wear testing machine according to claim 3, characterized in that: the middle shaft (14) is provided with a key groove (18), and the tail part of the middle shaft (14) is in interference fit with the tailstock (15); the middle disc (12) is provided with a sliding rail matched with the key groove (18); the support seat (151) is fixed with the intermediate shaft (14) through a key pin.
5. The bucket tooth rapid wear testing machine according to claim 4, wherein: the bottom of the hydraulic cylinder (13) is fixed on the tailstock (14) through a screw, and the top of the hydraulic cylinder is fixed through a clamping plate (20) with a pin shaft and the middle disc (12).
6. The bucket tooth rapid wear testing machine according to claim 5, wherein: the vibration exciter (11) is fixed on the middle disc (12) through a rotary joint (17) with a pin shaft.
7. A tooth rapid wear tester according to claim 1, 2, 3, 4, 5 or 6, wherein: the friction disc support seat (6) is provided with a caliper (7) and a fixing column (16); the friction disc (8) is provided with a fixing hole matched with the fixing column (16); the caliper includes: a caliper seat (7), a rotary clamping plate (22) and a fixing screw (21); the caliper fixes the outer periphery of the friction disk (8).
8. The bucket tooth rapid wear testing machine according to claim 7, wherein: the friction discs (8) are multiple, and the working areas of the friction discs are planes or curved surfaces attached to bucket teeth respectively.
9. The bucket tooth rapid wear testing machine according to claim 7, wherein: the tooth holders (10) are multiple, and after the bucket teeth are installed, the bucket tooth surfaces are attached to the friction discs (8) in different directions.
10. A bucket tooth rapid wear test method comprises the following steps: adopting a bucket tooth rapid wear testing machine of claim 1;
1) abrasion test
S1, before a wear test is carried out, acquiring a real-time bucket tooth resistance curve of an excavator associated with a user, decomposing the resistance curve into a smooth part and a vibration part after noise reduction treatment, and respectively inputting the separated curves into an upper computer system;
s2, installing corresponding bucket teeth on a tooth holder (10) through a pin shaft, operating a control console (4) to enable a friction disc (8) to rotate in a manner of clinging to the bucket teeth, and loading periodic axial acting force and vibration by matching a hydraulic cylinder (13) and a vibration exciter (11);
s3, after repeating the steps for a certain number of times, replacing the tooth holder (10) and the friction disc (8) to change the shapes of the wear surface of the bucket tooth and the curved surface of the friction disc, and loading for the same time or period number;
s4, evaluating the abrasion effect of the bucket teeth to obtain real-time abrasion performance degradation data of the bucket teeth;
2) fatigue test
S1, collecting real-time bucket tooth acting force of an excavator associated with a user, and inputting the acting force into an upper computer system after noise reduction processing;
s2, mounting bucket teeth, locking the friction disc (8) to be fixed, and statically contacting the bucket teeth with the friction disc (8);
s3, repeatedly loading a vibration curve by the vibration exciter 11, and evaluating a test result;
3) the friction disc 8 is not locked and the wear test are performed simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111468906.2A CN114324039A (en) | 2021-12-04 | 2021-12-04 | Bucket tooth rapid wear testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111468906.2A CN114324039A (en) | 2021-12-04 | 2021-12-04 | Bucket tooth rapid wear testing machine |
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| Publication Number | Publication Date |
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| CN114324039A true CN114324039A (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111468906.2A Pending CN114324039A (en) | 2021-12-04 | 2021-12-04 | Bucket tooth rapid wear testing machine |
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| CN (1) | CN114324039A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839651A (en) * | 2023-02-27 | 2023-03-24 | 江苏宣胜金属科技有限公司 | Wear testing device for excavator bucket teeth |
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| CN102230863A (en) * | 2011-04-12 | 2011-11-02 | 河南科技大学 | Flexible loading system of friction and wear testing machine |
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2021
- 2021-12-04 CN CN202111468906.2A patent/CN114324039A/en active Pending
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| CN86108220A (en) * | 1986-12-06 | 1987-06-17 | 武汉工学院 | Vibration friction abrasion testing machine |
| US5996395A (en) * | 1996-03-24 | 1999-12-07 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Frictional dynamic characteristic measuring apparatus |
| CN2750313Y (en) * | 2004-11-01 | 2006-01-04 | 吉林大学 | Speed regulation constant output type friction tester |
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| CN101832898A (en) * | 2009-12-16 | 2010-09-15 | 安徽工业大学 | Horizontal end face frictional wear tester |
| CN102230863A (en) * | 2011-04-12 | 2011-11-02 | 河南科技大学 | Flexible loading system of friction and wear testing machine |
| CN108982273A (en) * | 2018-08-08 | 2018-12-11 | 湖北工程学院 | Current-carrying frictional wear experiment machine and current-carrying frictional wear experiment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839651A (en) * | 2023-02-27 | 2023-03-24 | 江苏宣胜金属科技有限公司 | Wear testing device for excavator bucket teeth |
| CN115839651B (en) * | 2023-02-27 | 2023-05-05 | 江苏宣胜金属科技有限公司 | Excavator bucket tooth wear testing device |
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