Influence of rock type on regularities of excavator bucket tooth crown wear

Regularities of the process of wear of the crowns of an excavator bucket tooth made of high-carbon chromium-manganese steels are investigated, depending on the work on coarse (granite for blasting) and fine (quarry sand) abrasive rock in order to establish the sides of the crown that require increased wear resistance. Based on the analysis of the nature of the change in the geometric profile of the crown, depending on the type of rock, the location, type and size of defects on the lower and upper surfaces of the tooth crown, the results of measuring the hardness of the working surfaces of the crowns, a conclusion is drawn up on the difference in the mechanism of wear of the upper and lower sides of the crown when working on large lumpy rock. rock — in the case of the upper side, this is shock-abrasive wear, characterized by a relatively low rate of weight loss, in the case of the lower side, it is purely abrasive wear, proceeding with high intensity. As a result, the lower side wears out at a faster rate than the upper side and the crown loses its symmetry. For fine rock, both sides of the crown are purely abrasive and wear at the same rate while maintaining the symmetry of the crown shape. It is concluded that in order to increase the service life of the crowns in the case of coarse rock, it is necessary to increase the wear resistance, mainly of the lower side, and when working on the finely dispersed, both sides.

Keywords: excavator, excavator bucket tooth crown, crown top surface, crown bottom surface, granite, coarse abrasive rock, fine abrasive rock, sand, abrasive wear, shock-abrasive wear.
For citation:

Bolobov V. I., Akhmerov E. V., Rakitin I. V. Influence of rock type on regularities of excavator bucket tooth crown wear. MIAB. Mining Inf. Anal. Bull. 2022;(6−2):189—204. [In Russ]. DOI: 10.25018/0236_1493_2022_62_0_189.

Issue number: 6
Year: 2022
Page number: 189-204
ISBN: 0236-1493
UDK: 621.879.31
DOI: 10.25018/0236_1493_2022_62_0_189
Article receipt date: 14.01.2022
Date of review receipt: 04.04.2022
Date of the editorial board′s decision on the article′s publishing: 10.05.2022
About authors:

Bolobov V. I.1, Dr. Sci. (Eng.), professor, ORCID ID: 0000-0002-0810-0132, email:;
Akhmerov E. V.1, graduate student, ORCID ID: 0000-0003-1692-4745, email:;
Rakitin I. V.1, student, ORCID ID: 0000-0002-7874-1859, email:;
1 Saint-Petersburg Mining University, 21st Line, St Petersburg 199106, Russia.


For contacts:

Akhmerov Erik Viktorovich, email:


1. Zorin V. A., Bocharov V. S. Machine reliability, Orel, OrelGTU Publ, 2003, 548 p. [In Russ].

2. Vetrov Ju. A. Soil cutting with earthmoving machines, Moscow, Mashinostroenie, 1971, 357 p. [In Russ].

3. Novokshonova N. V., Vahrushev S. I. Research on deterioration of excavator replaceable bucket teeth and its influence on soil cutting resistance. Sovremennye tehnologii v stroitel’stve. Teorija i praktika. 2019, vol. 2, pp. 175–181. [In Russ].

4. Lyakh D. D., Khudyakova I. N., Ivanov S. L. Justification of peat block-making module parameters and mass/power characteristics for peat production machinery. MIAB. Mining Inf. Anal. Bull. 2022, no. 6, pp. 93–108. [In Russ]. DOI: 10.25018/0236_1493_2022_6_0_93.

5. Mikhailov A. V., Garmaev O. Z., Garifullin D. R., Kazakov Y. A. A potential application of in-pit crushing-conveying and dewatering system in peat mining. IOP Conference Series: Earth and Environmental Science. 2019, vol. 378, no. 1, pp. 86–90. DOI:10.1088/1755−13 15/378/1/012086.

6. Ruzibaev A. N., Zhuraev D. D., Hasanova Sh. I., Abdiev B. K., Nazhimov Jo. Je. Study of the wear of the teeth of bucket for mining excavators. International scientific review of problems and prospects of modern science and education. Collection of scientific articles. LVI international correspondence scientific and practical conference. Boston, USA. 2019, pp. 13–16. [In Russ].

7. Pobegailo P. A., Kritskiy D. Yu., Gilmanshina T. R. Wear of mining shovel components: Current situation and analysis. MIAB. Mining Inf. Anal. Bull. 2021, vol. 2, pp. 64–74. [In Russ]. DOI: 10.25018/0236-1493-2021-2-0−64−74.

8. Kolokol’cev V. M., Vdovin K. N., Chernov V. P., Feoktistov N. A., Gorlenko D. A., Dubrovin V. K. Study of abrasive and impact and abrasive wear mechanisms of high manganese steel. Vestnik of Nosov Magnitogorsk State Technical University. 2017, vol. 15, no. 2, pp. 54–62. [In Russ]. DOI 10.18503/1995-2732-2017-15−2-54−62.

9. Nefed’ev S. P., Djoma R. R., Kotenko D. A. Abrasive and impact-abrasive wear resistance of solid weld deposits, Bulletin of the South Ural State University. Series «Metallurgy», 2015, vol. 15, no. 1, pp. 103–106. [In Russ]. 

10. Hromoj M. R., Svinarchuk V. P., Svinarchuk P. V. Deterioration dulling shovel grouser of bucket. Nauchnyj vestnik Moskovskogo Gosudarstvennogo Gornogo Universiteta. 2010, no. 8, pp.106–113. [In Russ].

11. Shibanov D. A., Ivanov S. L., Yemelyanov A. A., Pumpur E. V. Evaluation of working efficiency of open pit shovels in real operating conditions. MIAB. Mining Inf. Anal. Bull. 2020, no. 10, pp. 86–94. [In Russ]. DOI: 10.25018/0236-1493-2020-10−0-86−94.

12. Ivanov S. L., Ivanova P. V., Kuvshinkin S. Y. Promising model range career excavators operating time assessment in real operating conditions. Journal of Mining Institute. 2020, vol. 242, pp. 228–233. [In Russ]. DOI: 10.31897/pmi.2020.2.228.

13. Kuznecova V. N., Avdeeva E. S. Trends in Increasing the Wear Resistance of Excavator Bucket Teeth. Omsk Scientific Bulletin. 2010, no.1 (87), pp. 99–101. [In Russ].

14. Prokopenko S. A., Ludzish V. S., Kurzina I. A. Improvement of cutting tools to increase the efficiency of destruction of rocks tunnel harvesters. Journal of Mining Science. 2016, vol. 52, no. 1, pp.153–159. DOI: 10.1134/S1062739116010248.

15. Prokopenko S. A., Sushko A. V., Kurzina I. A. New design of cutters for coal mining machines. IOP Conference Series: Materials Science and Engineering. 2015, vol. 91, pp.1–8. DOI:10.1088/1757−899X/91/1/012058.

16. Gromyka D. S., Utenkova T. G., Korotkova O. Yu. Estimation methods of wear mechanisms in cutting heads of mining machines: Review. MIAB. Mining Inf. Anal. Bull. 2021, no. 2, pp. 75–86. [In Russ]. DOI: 10.25018/0236-1493-2021-2-0−75−86.

17. Gogolinskiy K. V., Gromyka D. S., Kremcheev E. A. A modelling of cyclic thermal and impact loads on excavator bucket. International Review of Mechanical Engineering. 2021, vol. 15 (4), pp.189–196. DOI: 10.15866/ireme.v15i4.20699.

18. Suryo S. H., Fawwaz W. M., Wijaya Y. A., Saputro E. W., Harto. Analysis and topology optimization structural design excavator bucket tooth using finite element method. AIP Conference Proceedings. 2020, vol. 2217, pp. 1–11. DOI: 10.1063/5.0000531.

19. Ren Z., Sun H., Liang Y., He Y., Feng M. Strength analysis of excavator bucket based on normal digging trajectory and limiting digging force. Journal of Vibroengineering. 2020, vol. 23, pp. 217–226. DOI: 10.21595/jve.2020.21596.

20. Suryo S. H., Bayuseno A. P., Jamari J., Wahyudi I. A. Analysis of rake angle effect to stress distribution on excavator bucket teeth using finite element method. Civil Engineering Journal. 2017, vol. 3, no. 12, pp. 1222–1234. DOI: 10.28991/cej-030952.

21. Komissarov A. P., Lagunova Yu. A., Nabiullin R. Sh., Khoroshavin S. A. Digital model of shovel work process. Mining Inf. Anal. Bull. 2022, no. 4, pp. 156–168. [In Russ]. DOI: 10.25018/0236_1493_2022_4_0_156.

22. Bezkorovayny P. G., Shestakov V. S., Yusupov T. I. Loading of hydraulic excavator implement in bucket movement. MIAB. Mining Inf. Anal. Bull. 2021, no. 11−1, pp. 209–218. [In Russ]. DOI: 10.25018/0236_1493_2021_111_0_209.

23. Zlotnikov E. G., Khalimonenko A. D., Kazakov D. Yu. Modeling and calculation of load on cutting inserts of disk milling cutters in software environment of Autodesk Inventor. IOP Conference Series: Earth and Environmental Science. 2018, vol. 194, no. 2, pp. 1–6. DOI: 10.1088/1755−1315/194/2/022048.

24. Ismail R., Muhammad Z., Jamari J., Bayuseno A. P. Designing and wear testing of excavator bucket teeth for the need of indonesian mining. ARPN Journal of Engineering and Applied Sciences. 2020, vol. 15, no. 1, pp. 21–26.

25. Das B., Sawrav K., Singh S. B., Bandyopadhyay P. P. Tribological behaviour of the hardfacing alloys utilised to fabricate the wear parts of an excavator bucket. Transactions of the IMF. 2021, vol. 99, no. 3, pp. 153–161. DOI: 10.1080/00202967.2021.1861854.

26. Suryo S. H., Bayuseno A. P., Jamari J., Ramadhan M. A. R. Analysis of AISI material power of AISI 4140 bucket teeth excavator using influence of abrasive wear. AIP Conference Proceedings. 2018, vol. 1977, pp. 1–9. DOI: 10.1063/1.5042942.

27. Nasonov M. Y., Lykov Y. V. Effects of working conditions on excavator performance — longevity of metal structures. IOP Conference Series: Earth and Environmental Science. 2018, vol. 194, pp. 1–7. DOI: 10.1088/1755−1315/194/4/042017.

28. Bolobov V. I., Bochkov V. S. On the influence of hardening treatment of the lining material of ball mills on its wear resistance. Gornyi Zhurnal. 2017, no. 1, pp. 57–60. [In Russ].

29. Vinogradov V. N., Sorokin G. M., Kolokol’nikov M. G. Abrasive wear, Moscow, Mashinostroenie, 1990, 224 p. [In Russ].

30. Khrushchov M. M., Babichev M. A Metal wear studies, Moscow, USSR Academy of Sciences Publ., 1960, 351 p. [In Russ].

31. Dragobetskii V. V., Shapoval A. A., Mos’pan D. V, Lotous V. V., Strengthening of excavator bucket teeth using plastic deformation by explosion. Metallurgical and Mining Industry. 2015, no. 2, pp. 38–42. [In Russ].

32. Efimov I. A., Yumaev R. G. Extending excavator bucket teeth life. Journal of Mining Institute. 1981, vol. 87, pp. 69–72. [In Russ].

33. Talerov M. P. The dependence of the wear resistance of the body of the cutters of mining tools on the distribution of hardness along the length of the cutter. Journal of Mining Institute. 2010, vol. 186, pp. 140–142. [In Russ].

34. Nasonov M. Yu., Lykov Yu. V., Trong D. D. Study of the resource and durability of metal structures of excavators after the expiration of the service life. Ugol. 2020, no. 2, pp. 13–17. [In Russ]. DOI: 10.18796/0041-5790-2020-2-13−17.

35. Khoreshok A., Mametiev L., Tsekhin A., Borisov A. Relationship between the power of the two-bit cutting body rotation drive of the roadheader and hardness of broken rock. E3S Web of Conferences. 2018, vol. 41, pp. 1–8. DOI: 10.1051/e3sconf/20184103017.

36. Bogdanov S. P., Khristiuk N. A., Anisimov A. V., Sychov M. М. Increase of stainless steel wear resistance by diffusion chromium plating using iodine transport. Materials Science Forum. 2021, vol. 1040, pp. 139–152. DOI: 10.4028/

37. Deleg D., Vanchinzhav S., Purevdorzh N. Study of self-sharpening of an excavator bucket tooth. MIAB. Mining Inf. Anal. Bull. 2008, vol. 14 (1), pp. 402–416. [In Russ].

Подписка на рассылку

Раз в месяц Вы будете получать информацию о новом номере журнала, новых книгах издательства, а также о конференциях, форумах и других профессиональных мероприятиях.