CN220814063U

CN220814063U - Diamond bucket tooth

Info

Publication number: CN220814063U
Application number: CN202322488803.3U
Authority: CN
Inventors: 文腾飞; 杨德涛; 岳巧花
Original assignee: SF Diamond Co Ltd
Current assignee: SF Diamond Co Ltd
Priority date: 2023-09-13
Filing date: 2023-09-13
Publication date: 2024-04-19
Anticipated expiration: 2033-09-13

Abstract

The utility model relates to the field of engineering machinery equipment, in particular to a diamond bucket tooth. The diamond bucket tooth comprises a tooth tip and an installation part used for being installed on engineering equipment, a diamond composite sheet is fixed on the tooth tip, the diamond composite sheet protrudes out of the surface of the tooth tip, and a wear-resistant coating is coated on the position, which is not covered with the diamond composite sheet, on the tooth tip. The abrasion-resistant coating is coated on the part of the tooth tip, which is not covered by the diamond composite sheet, so that the abrasion-resistant degree of the part is enhanced, namely, the whole diamond bucket tooth is not required to be enhanced, only the tooth tip which is easy to abrade is enhanced, and the whole part of the tooth tip is enhanced, so that the problem that the part of the tooth tip, which is not covered by the diamond composite sheet, is easy to damage due to the fact that the tooth tip is locally enhanced by using the diamond composite sheet in the prior art is solved.

Description

Diamond bucket tooth

Technical Field

The utility model relates to the field of engineering machinery equipment, in particular to a diamond bucket tooth.

Background

The surface miner is mainly used for excavating surface stripping layers and coal beds, and in the working process, the bucket teeth are used as components which are directly contacted with rocks or coal beds and are often damaged for replacement, so that the cost is obviously increased, the efficiency is reduced, and the strength and the wear resistance of the bucket teeth are required to be improved.

At present, the abrasion resistance of the bucket tooth is improved mainly in two modes, one is realized by optimizing steel materials and a heat treatment process of the bucket tooth, the overall strength of the bucket tooth is improved, but the abrasion resistance of the tooth tip part of the bucket tooth is not obviously improved, and the abrasion resistance of a bucket tooth matrix is required to be improved by using more abrasion resistant materials; another way is to locally strengthen the bucket tooth, for example, chinese patent publication No. CN203834558U discloses a PDC bucket tooth for engineering machinery, and a plurality of polycrystalline diamond compacts are welded on the upper and lower surfaces and two sides of the front end of the bucket tooth, so as to locally strengthen the bucket tooth.

However, in the above technical scheme, only the local tooth tip of the bucket tooth is reinforced, and in the process of excavating, the part of the tooth tip which is not covered by the diamond compact is also contacted with rock or coal seam, so that other parts of the tooth tip of the bucket tooth are worn to cause damage.

Disclosure of utility model

The utility model aims to provide a diamond bucket tooth, which is used for solving the problem that in the prior art, only a diamond composite sheet is used for locally reinforcing the tooth tip of the bucket tooth, so that the part of the tooth tip which is not covered with the diamond composite sheet is easy to damage.

In order to achieve the above purpose, the diamond bucket tooth in the utility model adopts the following technical scheme:

The utility model provides a diamond bucket tooth, includes the tooth point and is used for installing the installation department on engineering equipment, is fixed with the diamond compact on the tooth point, and the diamond compact is outstanding in the surface of tooth point, the position that does not cover the diamond compact on the tooth point is coated with wear-resisting coating.

The beneficial effects of the technical scheme are that: the utility model improves the existing diamond bucket tooth, and the wear-resistant coating is coated on the part of the tooth tip which is not covered by the diamond composite sheet to strengthen the wear resistance of the part, namely the whole diamond bucket tooth is not needed to be strengthened, only the tooth tip which is easy to wear is strengthened, and the whole part of the tooth tip is strengthened, thereby solving the problem that the part of the tooth tip which is not covered by the diamond composite sheet is easy to damage because the tooth tip is locally strengthened by using the diamond composite sheet in the prior art.

Further, the wear-resistant coating is an iron-based wear-resistant coating welded on the tooth tip.

The beneficial effects of the technical scheme are that: the coating is welded to further enhance the bonding strength of the wear-resistant coating and the tooth tip, and the wear-resistant coating is not easy to fall off.

Further, a receiving hole for receiving the diamond compact is provided on the tooth tip.

The beneficial effects of the technical scheme are that: the diamond compact is convenient to be arranged on the tooth tip and is convenient to be combined more firmly.

Further, the diameter of the accommodating hole is smaller than that of the diamond compact, and the diamond compact is assembled in the accommodating hole in an interference mode.

The beneficial effects of the technical scheme are that: the installation is simple, and the additional installation operation is avoided.

Further, the diamond compact includes a substrate and a diamond layer that protrudes from the wear resistant coating.

The beneficial effects of the technical scheme are that: so that the diamond layer protrudes outside, and when in use, the diamond layer can be contacted with the rock layer or the coal layer first, thereby further reducing the abrasion of the wear-resistant coating or the tooth tip.

Further, the tooth point is the flat structure of vertical setting, and the cross-sectional dimension of tooth point reduces gradually along the direction of keeping away from installation department, and the tooth point includes about two broad sides and upper and lower two narrow sides, is equipped with respectively on about two broad sides and the upper narrow side diamond compact.

The beneficial effects of the technical scheme are that: the setting of tooth point is more reasonable and is convenient for excavate, and just sets up the diamond compact at two money sides of easy wearing and tearing and the narrow side in top and be convenient for save the setting quantity of diamond compact.

Further, the diamond compact on the upper narrow side is provided with at least two diamond compacts which are arranged in a straight line along the extending direction of the upper narrow side.

The beneficial effects of the technical scheme are that: the arrangement of the straight line shape on the narrow side surface with smaller area is convenient for saving the number of the diamond composite sheets.

Further, the diamond composite sheets on the left and right wide sides are provided with at least two rows, each row comprises at least two diamond composite sheets, and the number of the diamond composite sheets on the upper narrow side is equal to the number of the rows of the diamond composite sheets on the left and right wide sides.

The beneficial effects of the technical scheme are that: the coverage areas of the upper narrow side face and the two wide side faces are close, and the digging effect is good.

Further, the diamond compacts on the left and right broad sides are provided with at least two rows, each row comprises at least two diamond compacts, and the number of the diamond compacts in each row is gradually increased towards the direction close to the mounting part.

The beneficial effects of the technical scheme are that: the diamond composite sheets with smaller quantity are arranged at the places with smaller area, and the diamond composite sheets with larger quantity are arranged at the places with larger area, so that the protection effect on the wide side is good.

Further, a plurality of diamond compacts are respectively arranged on the left and right wide side surfaces and the upper narrow side surface, and the diamond compacts on each side surface are covered from the tooth tip end part to the middle part of the tooth tip.

The beneficial effects of the technical scheme are that: the coverage area is larger, and the protection effect on the tooth tip is better.

Drawings

FIG. 1 is a schematic view of a diamond tooth according to example 1 of the present utility model;

FIG. 2 is a schematic view of a diamond compact of example 1 of a diamond tooth according to the present utility model;

Fig. 3 is a schematic view of a diamond compact in another embodiment of a diamond tooth according to the present utility model.

In the figure: 11. a mounting part; 2. a diamond compact; 21. a base; 22. a diamond layer; 3. and (3) a wear-resistant coating.

Detailed Description

The features and capabilities of the present utility model are described in further detail below in connection with the examples.

In example 1 of the diamond tooth of the present utility model:

In this embodiment, be provided with the accommodation hole that is used for installing diamond compact at the tooth point position of bucket tooth, be provided with diamond compact at accommodation hole internal fixation, be provided with wear-resisting coating at the position of not accommodating hole on the tooth point, protected and strengthened the tooth point of diamond bucket tooth like this, be difficult for taking place to damage at the in-process of excavating.

Specifically, as shown in fig. 1, the diamond bucket tooth in the present embodiment includes a tooth tip for performing excavation and a mounting portion 11 for mounting on construction equipment, and the mounting portion 11 includes a bolt penetration hole through which a bolt passes. In order to facilitate the installation, a positioning block is further provided on the installation portion 11. The tooth tip includes upper and lower narrow sides and left and right wide sides which are contacted with rock or coal seam during excavation, and diamond compacts 2 are respectively arranged on the upper narrow side and the two wide sides.

The tooth point is the flat structure of vertical setting, and the cross-sectional dimension of tooth point reduces gradually along the direction of keeping away from installation department 11, and the tooth point is including controlling two wide sides and two upper and lower narrow sides, is provided with the accommodation hole that is used for holding diamond compact 2 respectively on the top narrow side and two wide sides of tooth point, and the accommodation hole is columniform blind hole. The portion of the tooth tip that is away from the mounting portion 11 is the front end of the tooth tip, and the receiving holes are uniformly arranged in a row at the front end portion of the tooth tip. Specifically, the diamond compact 2 on the upper narrow side is provided with four and is arranged in a "straight" shape along the extending direction of the upper narrow side. The diamond compacts 2 on the left and right broad sides are provided with four rows, each row comprises at least two diamond compacts 2, and the number of the diamond compacts from front to back in the embodiment is two, three, four and five in sequence. That is, the number of diamond compacts 2 on the upper narrow side is equal to the number of rows of diamond compacts 2 on the left and right wide sides, so that the areas covered by the diamond compacts 2 on the three sides are close. It is noted that the diamond compact 2 covers the middle of the tooth tip from the tip end portion on each side so as to cover a larger area as much as possible for better protection.

The diameter of the receiving hole is larger than the diameter of the diamond compact 2, and the diamond compact 2 is welded to the tooth tip by welding when the mounting is performed. Specifically, as shown in fig. 2, the diamond compact 2 in this embodiment includes a base 21 made of an alloy and a diamond layer 22 located above the base 21, the base 21 is located inside the accommodating hole and welded to the tooth tip, the diamond layer 22 protrudes from the tooth tip, and in this embodiment, the diamond layer 22 is in a disc shape. Of course, in other embodiments, the diamond compact may have a spherical surface as shown in fig. 3.

In addition, in order to strengthen other portions on the tooth tip, there is also provided a wear-resistant coating 3, in particular, since the tooth tip is iron, the wear-resistant coating 3 is an iron-based wear-resistant coating 3 welded on the tooth tip, wherein the iron-based wear-resistant coating 3 includes diamond micropowder, tungsten carbide and titanium carbide, and the coating is fixedly provided on the tooth tip by means of laser cladding. The diamond layer 22 on the diamond compact 2 is now higher than the height of the wear resistant coating 3 so that it is first brought into contact with the diamond compact 2 during excavation, by a dimension between 0 and 10 mm.

In the process of excavating the diamond bucket teeth, the diamond layer 22 of the diamond compact 2 protrudes from the tooth tip and the wear-resistant coating 3, so that the diamond layer 22 is contacted first, and the diamond layer 22 is used for excavating and breaking rock. The broken rock fragments will then come into contact with the tooth tip, and as the rest of the tooth tip is coated with the wear-resistant coating 3, the rock fragments will come into contact with the wear-resistant coating 3 and not directly with the ferrous part of the tooth tip, thereby protecting the entire tooth tip of the diamond bucket tooth.

In example 2 of the diamond tooth of the present utility model: as for the coverage area of the diamond compact, this embodiment proposes a new arrangement, unlike embodiment 1, in which the diamond compact is provided only in the area of the tip portion of the tooth.

In example 3 of the diamond tooth of the present utility model: in regard to the arrangement of the diamond compact, this embodiment proposes a new arrangement form, unlike embodiment 1, in which the diamond compact on the left and right broad sides is provided with two rows. Of course, in other embodiments, other numbers of three or five rows, etc. greater than two rows, may be provided.

In example 4 of the diamond tooth of the present utility model: with respect to the arrangement of the diamond compacts, this embodiment proposes a new arrangement form, unlike embodiment 1, in which the number of diamond compacts on the left and right broad sides is gradually reduced toward the direction approaching the mounting portion. Of course, in other embodiments, they may be equal.

In example 5 of the diamond tooth of the present utility model: with respect to the arrangement of the diamond compacts, this embodiment proposes a new arrangement form, unlike embodiment 1, in this embodiment, the number of diamond compacts on the upper narrow side is not the same as the number of rows of diamond compacts on the left and right wide sides, but each is individually arranged.

In example 6 of the diamond tooth of the present utility model: for the arrangement of diamond compacts, this embodiment proposes a new arrangement form, unlike embodiment 1, in which two, three or five other numbers of diamond compacts are provided on the upper narrow side face of this embodiment.

In example 7 of the diamond tooth of the present utility model: for the arrangement of the diamond compact, this embodiment proposes a new arrangement form, unlike embodiment 1, in which the frontal diamond compact on the upper narrow side is no longer arranged in a straight line, but is arranged in a wave shape.

In example 8 of the diamond tooth of the present utility model: in view of the arrangement of the diamond compact, this embodiment proposes a new arrangement form, unlike embodiment 1, in which the diamond compact is provided on four sides of the tooth tip.

In example 9 of the diamond tooth of the present utility model: for the setting of the diamond compact, this embodiment proposes a new layout, unlike embodiment 1, in this embodiment, the diamond layer of the diamond compact protrudes from the tooth tip to be flush with the wear-resistant coating, and at this time, the diamond layer in the diamond compact still protrudes from the surface of the tooth tip.

In example 10 of the diamond tooth of the present utility model: with respect to the arrangement of the diamond compact, this embodiment proposes a new arrangement form, unlike embodiment 1, in which the diamond compact on the same face is arranged in a circumferentially uniform array. Of course, in other embodiments, the arrangement may be random, depending on the spacing on the tooth tip.

In example 11 of the diamond tooth of the present utility model: for the setting of diamond bucket tooth, this embodiment proposes a new layout form, and unlike embodiment 1, the diameter of holding hole is less than the diameter of diamond compact in this embodiment, presses the diamond compact into holding hole through the mode of cold pressing, and diamond layer protrusion is in wear-resisting coating this moment.

In example 12 of the diamond tooth of the present utility model: in view of the arrangement of the tooth tip, this embodiment proposes a new arrangement form, unlike embodiment 1, in this embodiment, no receiving holes are provided on the tooth tip, and the substrate of the diamond compact is directly welded on the outer surface of the tooth tip.

In example 13 of the diamond tooth of the present utility model: in respect of the arrangement of the wear-resistant coating, this embodiment proposes a new arrangement, which is different from embodiment 1 in that the wear-resistant coating is adhered to the outer surface of the tooth tip.

The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a diamond bucket tooth, includes the tooth point and is used for installing the installation department on engineering equipment, is fixed with the diamond compact on the tooth point, and the diamond compact stands out in the surface of tooth point, its characterized in that: the part of the tooth tip not covered by the diamond composite sheet is coated with a wear-resistant coating.

2. A diamond tooth according to claim 1, wherein: the wear-resistant coating is an iron-based wear-resistant coating welded on the tooth tip.

3. A diamond tooth according to claim 1 or claim 2, wherein: the tooth tip is provided with a containing hole for containing the diamond compact.

4. A diamond tooth according to claim 3, wherein: the diameter of the accommodating hole is smaller than that of the diamond compact, and the diamond compact is assembled in the accommodating hole in an interference mode.

5. A diamond tooth according to claim 1 or claim 2, wherein: the diamond compact includes a substrate and a diamond layer that protrudes from the wear resistant coating.

6. A diamond tooth according to claim 1 or claim 2, wherein: the tooth point is the flat structure of vertical setting, and the cross-sectional dimension of tooth point reduces gradually along the direction of keeping away from installation department, and the tooth point is including controlling two broad sides and upper and lower two narrow sides, is equipped with respectively on controlling two broad sides and the narrow side in top the diamond compact.

7. A diamond tooth according to claim 6, wherein: the diamond composite sheet on the upper narrow side surface is provided with at least two diamond composite sheets which are arranged in a straight line along the extending direction of the upper narrow side surface.

8. A diamond tooth according to claim 7, wherein: the diamond composite sheets on the left wide side and the right wide side are provided with at least two rows, each row comprises at least two diamond composite sheets, and the number of the diamond composite sheets on the upper narrow side is equal to the number of the rows of the diamond composite sheets on the left wide side and the right wide side.

9. A diamond tooth according to claim 6, wherein: the diamond composite sheets on the left and right wide side surfaces are provided with at least two rows, each row comprises at least two diamond composite sheets, and the number of the diamond composite sheets in each row is gradually increased towards the direction close to the installation part.

10. A diamond tooth according to claim 6, wherein: a plurality of diamond composite sheets are respectively arranged on the left wide side face, the right wide side face and the upper narrow side face, and the diamond composite sheets on the side faces cover the middle part of the tooth tip from the tooth tip end part.