CN114108724B

CN114108724B - Bucket and excavator

Info

Publication number: CN114108724B
Application number: CN202111487323.4A
Authority: CN
Inventors: 申欣; 朱梓明; 李均刚; 曹有常
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-12-27
Anticipated expiration: 2041-12-07
Also published as: CN114108724A

Abstract

The invention discloses a bucket and an excavator, which comprise a top plate, a bottom plate and side plates, wherein one end of the bottom plate is connected to one end of the top plate, the bottom plate is bent to enable the bucket to form a bucket shape, a certain distance is reserved between the ends, far away from each other, of the top plate and the bottom plate, so that an opening of the bucket is formed, the two side plates are fixedly connected to two sides of the bottom plate respectively, the two side plates are also fixedly connected to two sides of the top plate respectively, each side plate comprises a side edge plate and a side thin plate, the thickness of each side edge plate is larger than that of each side thin plate, each side edge plate extends to one end, adjacent to the bottom plate, of each side plate from one end, adjacent to the opening of the bucket, of each side plate, and a plurality of side thin plates are distributed on the side plates at intervals. In the bucket and the excavator provided by the embodiment of the invention, the side blade plates extend to all areas of the whole side plate, so that the structure of the side blade plates is optimized, the load transmission area of the side blade plates is increased, the excavating load path is optimized, the excavating resistance and load are reduced, the excavating force and the excavating efficiency are improved, meanwhile, the light-weight structure is formed, and the energy and the oil are saved.

Description

Bucket and excavator

Technical Field

The invention relates to the technical field of foundation construction equipment, in particular to a bucket and an excavator.

Background

An excavator, also known as an excavating machine (excavating shovel), is an earth moving machine that excavates material above or below a bearing surface with a bucket and loads the material into a transport vehicle or unloads the material to a stockyard. The materials excavated by the excavator mainly comprise soil, coal, silt, soil subjected to pre-loosening and rocks. In view of the development of construction machines in recent years, the development of excavators is relatively fast, and the excavator has become one of the most important construction machines in construction.

The bucket is an important bearing member of the excavator, and performs excavation work by directly contacting earth, ore, and the like, and the structural strength thereof is very important. The bucket generally comprises a bucket tooth, a main blade plate, a side blade plate, a bottom plate, a top plate, a lug plate and a reinforcing plate, wherein the main blade plate and the side blade plate are arranged mainly for resisting collision, reducing abrasion and prolonging the service life of the bucket. However, at present, the side plates of the bucket include side edge plates and side thin plates, the side edge plates are generally simple rectangular plates and are arranged on the side edges of the bucket, the design range of the side edge plates is small, the stress transmission path is poor, the strength of the bucket is poor, and the excavating force is poor.

The foregoing description is provided for general background information and is not admitted to be prior art.

Disclosure of Invention

The invention aims to provide a bucket and an excavator with better stress transmission path and stronger excavating force.

The invention provides a bucket, which comprises a top plate, a bottom plate and side plates, wherein one end of the bottom plate is connected to one end of the top plate, the bottom plate is bent to enable the bucket to form a bucket shape, a certain distance is reserved between the ends, far away from each other, of the top plate and the bottom plate, so that an opening of the bucket is formed, the two side plates are fixedly connected to two sides of the bottom plate respectively, the two side plates are also fixedly connected to two sides of the top plate respectively, each side plate comprises a side blade plate and a side thin plate, the thickness of each side blade plate is larger than that of each side thin plate, each side blade plate extends from one end, adjacent to the opening of the bucket, of each side plate to one end, adjacent to the bottom plate, of each side plate, and a plurality of side thin plates are distributed on the side plates at intervals.

In one embodiment, the thickness h1 of the side thin plate and the thickness h2 of the side cutting plate are in a relation of 1/3 × h2 ≦ h1 ≦ 3/5 × h2.

In one embodiment, the connecting area of the side edge plate and the side thin plate forms a groove.

In one embodiment, the bucket further comprises a main cutting edge plate, a tooth holder and bucket teeth, the main cutting edge plate is connected to the other end, opposite to the top plate, of the bottom plate, the tooth holder is mounted on the main cutting edge plate, the bucket teeth are mounted on the tooth holder, and the thickness of the main cutting edge plate is larger than that of the bottom plate.

In one embodiment, the distance from the side sheet adjacent to the opening is greater than the distance from each side sheet to the adjacent side sheet and greater than the distance from the side sheet adjacent to the base plate; in the side sheets adjacent to the opening, a distance from the side sheet close to the tooth to the opening is greater than a distance from the side sheet far from the tooth to the opening; among the side sheets adjacent to the opening, the side sheet farthest from the tooth includes a first side facing the opening and the top plate and a second side facing the bottom plate, and a distance from the side sheet closest to the side sheet farthest from the tooth to the second side is smaller than a distance from the side sheet closest to the opening and larger than a distance from the side sheet closest to the bottom plate.

In one embodiment, the side panel comprises 7 of the side sheets, wherein 7 of the side sheets comprise a first side sheet, a second side sheet, a third side sheet, a fourth side sheet, a fifth side sheet, a sixth side sheet and a seventh side sheet, the first side sheet, the second side sheet and the third side sheet are adjacent to the opening, the third side sheet is closer to the tooth than the first side sheet and the second side sheet, the first side sheet is farther from the tooth than the second side sheet and the third side sheet, the fourth side sheet, the fifth side sheet, the sixth side sheet and the seventh side sheet are adjacent to the first side sheet, the fourth side sheet is adjacent to the second side sheet and the bottom plate, the fifth side sheet is adjacent to the fourth side sheet and the bottom plate, the sixth side sheet is adjacent to the top plate, the fifth side sheet, the seventh side sheet is adjacent to the top plate, and the first side sheet is opposite to the side of the second side sheet, the fourth side sheet, the fifth side sheet and the sixth side sheet; wherein a distance from the third side sheet to the opening is greater than a distance from the second side sheet to the opening, a distance from the second side sheet to the opening is greater than a distance from the first side sheet to the opening, a distance from the first side sheet to the fifth side sheet is greater than a distance from the first side sheet to the sixth side sheet, a distance from the seventh side sheet to two different positions of the top plate, a distance from the seventh side sheet to the first side sheet, a distance from the sixth side sheet to the top plate, a distance from the fifth side sheet to the sixth side sheet, a distance from the fifth side sheet to the bottom plate, a distance from the fourth side sheet to the fifth side sheet, a distance from the second side sheet to the fourth side sheet, a distance from the fourth side sheet to the bottom plate, and a distance from the third side sheet to the bottom plate are equal.

In one embodiment, a convex portion and a concave portion are arranged on the outer side surface of the main blade plate facing the outside of the bucket, the convex portion and the concave portion are located on one side edge of the main blade plate facing away from the bucket teeth, the convex portions and the concave portions are arranged at intervals, each convex portion is arranged corresponding to one tooth holder, and each concave portion is arranged corresponding to a position between two tooth holders.

In one embodiment, the bucket further comprises bucket lip sheaths, the bucket lip sheaths are fixed on the edges of the main blade plate, and each bucket lip sheath is positioned between two adjacent bucket teeth; the surface of the concave part facing the outer side of the bucket is tangent to the outer surface of the bucket lip sheath, and the surface of the convex part facing the outer side of the bucket is tangent to the outer surface of the tooth holder.

In one embodiment, the bucket further comprises a bottom plate reinforcing plate, the bottom plate reinforcing plate is fixed on the outer side face, facing the outside of the bucket, of the bottom plate, the side edge, facing the side plate, of the bottom plate reinforcing plate is a curve, and a concave part is formed in the middle of the two side edges; the bottom plate reinforcing plate is composed of a plurality of sub-plates, and the sub-plates are respectively connected to the bottom plate so as to form connecting seams at the edges of the sub-plates.

In one embodiment, a first concave area is arranged on the outer surface of one end, close to the bucket teeth, of the bottom plate reinforcing plate, and a second concave area is arranged on the outer side surface of one end, close to the top plate, of the bottom plate reinforcing plate; alternatively, an outer side surface of the first concave area of the floor reinforcement plate facing away from the outside of the bucket is flush with the concave portion of the main blade plate.

The invention also discloses an excavator which comprises the bucket.

In the bucket and the excavator provided by the embodiment of the invention, the side blade plates are extended to each region of the whole side plate, so that the structure of the side blade plates is optimized, the load transfer area of the side blade plates is increased, the excavating load path is optimized, the excavating resistance and the load are reduced, the excavating force and the excavating efficiency are improved, meanwhile, a light-weight structure is formed, and energy and oil conservation are realized.

Drawings

Fig. 1 is a schematic view of an angle structure of a bucket according to an embodiment of the present invention.

Fig. 2 is another angle structure diagram of the bucket shown in fig. 1.

Fig. 3 is a schematic structural view of a side plate of the bucket shown in fig. 1.

Fig. 4 is a schematic view of the structure of the main blade plate of the bucket shown in fig. 1.

FIG. 5 is an angled view of the floor reinforcement plate of the bucket of FIG. 1.

FIG. 6 is a schematic view of another angle configuration of the floor reinforcement plate of the bucket shown in FIG. 1.

Fig. 7 is a schematic structural view of a second corner protector of the bucket shown in fig. 1.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of preferred embodiments, which is to be read in connection with the accompanying drawings. While the present invention has been described in connection with the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and specific embodiments thereof.

In this document, the terms "first," "second," "third," "fourth," "fifth," and the like (if any) are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In this document, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like (if any) are used in the description to describe the positions of structures in the drawings and the positions of the structures relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the present application.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the display device and the color display method according to the present invention will be given with reference to the accompanying drawings and preferred embodiments.

FIG. 1 is a schematic view of an angle structure of a bucket according to an embodiment of the present invention; fig. 2 is another angle structure diagram of the bucket shown in fig. 1. Referring to fig. 1 and 2, in the present embodiment, the bucket includes a top plate 11, a bottom plate 13, side plates 15, a main blade plate 17, a tooth holder 19, and teeth 21. One end of the bottom plate 13 is connected to one end of the top plate 11, the bottom plate 13 is bent to form a bucket shape, and one ends of the top plate 11 and the bottom plate 13, which are far away from each other, are spaced apart by a certain distance to form an opening of the bucket. The two side plates 15 are respectively fixedly connected to two sides of the bottom plate 13, and the two side plates 15 are also respectively fixedly connected to two sides of the top plate 11. The main blade plate 17 is connected to the other end of the bottom plate 13 opposite to the top plate 11, the tooth holder 19 is attached to the main blade plate 17, and the bucket tooth 21 is attached to the tooth holder 19. The side plate 15 includes a side blade plate 152 and a side thin plate 154, the thickness of the side blade plate 152 is greater than that of the side thin plate 154, the side blade plate 152 extends from one end of the side plate 15 adjacent to the opening of the bucket to one end of the side plate 15 adjacent to the bottom plate 13, and the side thin plates 154 are distributed on the side plate 15 at intervals.

In the bucket of the embodiment of the present invention, the side blade plates 152 are extended to each region of the entire side plate 15, so that the structure of the side blade plates 152 is optimized, the load transfer area of the side blade plates 152 is increased, the excavation load path is optimized, the excavation resistance and the load are reduced, the excavation force and the excavation efficiency are improved, and meanwhile, a lightweight structure is formed, so that energy saving and oil saving are achieved.

In this embodiment, the relationship between the thickness h1 of the side thin plate 154 and the thickness h2 of the side blade plate 152 is 1/3 × h2 ≦ h1 ≦ 3/5 × h2. Preferably, h1=1/2 × h2. The thickness of the side thin plate 154 is small, so that the side plate 15 forms a light weight structure, and energy and oil are saved. More preferably, the side blade plates 152 may have a thickness of 5 cm and the side sheets 154 may have a thickness of 2 cm.

In this embodiment, the connecting region between the side blade plate 152 and the side thin plate 154 is beveled. Thus, the thickness can be uniformly transited, and the stress concentration can be greatly eliminated.

In this embodiment, the distance S1 from the side thin plate 154 adjacent to the opening is greater than the distance S2 from each side thin plate 154 to the adjacent side thin plate 154, and is greater than the distance S3 from the side thin plate 154 adjacent to the bottom plate 13. Of the side thin plates 154 adjacent to the opening, the distance S11 from the side thin plate 154 close to the tooth 21 to the opening is larger than the distance S12 from the side thin plate 154 distant from the tooth 21 to the opening. Specifically, among the side sheets 154 adjacent to the opening, the side sheet 154 farthest from the tooth 21 includes a first side 1542 facing the opening and the top plate 11 and a second side 1544 facing the bottom plate 13, and a distance S4 from the side sheet 154 adjacent to the side sheet 154 farthest from the tooth 21 toward the second side 1544 is smaller than a distance S1 from the side sheet 154 adjacent to the opening and larger than a distance S3 from the side sheet 154 adjacent to the bottom plate 13. By such arrangement, the excavation load path of the tooth 21 and the side plate 15 during edge excavation and the stress load path transmitted from the swing arm (not shown) connected to the bucket can be optimized, so that the excavation resistance is reduced, and the excavation force and the excavation efficiency are improved.

Fig. 3 is a schematic structural view of a side plate of the bucket shown in fig. 1. Specifically, referring to fig. 3, the side plate 15 includes 7 side sheets 154, the 7 side sheets 154 include a first side sheet A1, a second side sheet A2, a third side sheet A3, a fourth side sheet A4, a fifth side sheet A5, a sixth side sheet A6, and a seventh side sheet A7, the first side sheet A1, the second side sheet A2, and the third side sheet A3 are adjacent to the opening, the third side sheet A3 is closer to the bucket teeth 21 than the first side sheet A1 and the second side sheet A2, the first side sheet A1 is farther from the bucket teeth 21 than the second side sheet A2 and the third side sheet A3, the fourth side sheet A4, the fifth side sheet A5, the sixth side sheet A6, and the seventh side sheet A7 are adjacent to the first side sheet A1, the fourth side sheet A4 is adjacent to the second side sheet A2 and the bottom plate 13, the fifth side sheet A5 is adjacent to the fourth side sheet A4 and the bottom plate 13, the sixth side sheet A6 is adjacent to the top plate 11, the fifth side sheet A5, the fourth side sheet A4 is adjacent to the fourth side sheet A2, the back side sheet A7. Wherein, the distance L18 from the third side sheet A3 to the opening is greater than the distance L5 from the second side sheet A2 to the opening, the distance L5 from the second side sheet A2 to the opening is greater than the distance L4 from the first side sheet A1 to the opening, the distance L6 from the first side sheet A1 to the second side sheet A2 is greater than the distance L7 from the first side sheet A1 to the fifth side sheet A5, the distance L7 from the first side sheet A1 to the fifth side sheet A5 is greater than the distance L8 from the first side sheet A1 to the sixth side sheet A6, the distance L1, L2 from the seventh side sheet A7 to two different positions of the top plate 11, the distance L3 from the seventh side sheet A7 to the first side sheet A1, the distance L9 from the sixth side sheet A6 to the top plate 11, the distance L10 from the fifth side sheet A5 to the sixth side sheet A6, the distance L11 from the fifth side sheet A5 to the fifth side sheet A5, the distance L11 from the fifth side sheet A5, the distance L12 from the fourth side sheet A4 to the fourth side sheet a 13, the distance L13 to the fourth side sheet L13 to the bottom plate 13, and the fourth side sheet L16 are equal. More specifically, the distance L5 from the second side sheet A2 to the opening is greater than 450 mm, the distance L5 from the second side sheet A2 to the opening is greater than the distance L4 from the first side sheet A1 to the opening is greater than 250 mm, the distance L8 from the first side sheet A1 to the sixth side sheet A6 is greater than 220 mm, the distance L14 from the third side sheet A3 to the fourth side sheet A4 is greater than 200 mm, the distance L17 from the second side sheet A2 to the third side sheet A3 is greater than 160 mm, and the distance L16 from the third side sheet A3 to the bottom plate 13 is greater than 150 mm. It should be noted that the above distances are all the minimum distances between the two.

Fig. 4 is a schematic view of the structure of the main blade plate of the bucket shown in fig. 1. In this embodiment, referring to fig. 4, the outer side surface of the main blade plate 17 facing the outside of the bucket is provided with a convex portion 172 and a concave portion 174, and the convex portion 172 and the concave portion 174 are located on the edge of one side of the main blade plate 17 facing away from the bucket teeth 21. Specifically, the plurality of protrusions 172 and the plurality of recesses 174 are provided at intervals. Specifically, each of the projections 172 is provided corresponding to one of the toothholders 19, and each of the recesses 174 is provided corresponding to a position between two of the toothholders 19.

Specifically, the surface of the boss 172 facing the outside of the bucket is tangent to the outer surface of the block 19. The bucket further comprises a plurality of lip protectors 23, the lip protectors 23 are fixed to the edge of the main blade plate 17, and each lip protector 23 is located between two adjacent teeth 21. The surface of the recess 174 facing the outside of the bucket is tangent to the outer surface of the lip protector 23. By providing the projecting part 172 and the recessed part 174 in the main blade plate 17, the excavation resistance of the bucket can be further reduced, and the service life of the bucket can be improved. Specifically, the thickness of the main blade plate 177 is greater than that of the base plate 13, and the thickness of the main blade plate 17 is also generally greater than that of the side blade plate 152, and more specifically, the thickness of the main blade plate 17 may be 7 cm. It should be noted that the tangent here mainly means that the joint of the two is flush without steps.

Specifically, the recess 174 is shaped as an isosceles trapezoid.

Specifically, the thickness of the end of the main blade 17 connected to the bottom plate 13 is smaller than that of the end far away from the bottom plate 13, so that the thicker main blade 17 and the thinner bottom plate 13 can form a transition at the connection part without an excessive thickness difference.

FIG. 5 is a schematic view of an angular structure of a floor reinforcement plate of the bucket shown in FIG. 1. FIG. 6 is a schematic view of another angle structure of the floor reinforcement plate of the bucket shown in FIG. 1. In this embodiment, referring to fig. 5 and fig. 6, the bucket further includes a bottom plate reinforcing plate 25, and the bottom plate reinforcing plate 25 is fixed on an outer side surface of the bottom plate 13 facing the outside of the bucket.

Specifically, the outer side surface of the first concave area 252 of the floor reinforcement plate 25 facing away from the bucket exterior is flush with the recessed portion 174 of the main blade plate 17. More specifically, the edges of the first recessed area 252 and the recess 174 meet, and the width of the meeting is substantially the same.

Specifically, the side of the bottom plate reinforcing plate 25 facing the side plate 15 is curved, and the middle of both sides forms a recess, thereby exposing a part of the bottom plate 13. In this way, the material distribution of the floor reinforcement plate 25 is optimized.

Specifically, a first concave area 252 is provided on the outer surface of the end of the floor reinforcing plate 25 close to the tooth 21, and a second concave area 254 is provided on the outer side surface of the end close to the top plate 11. By providing the first pocket 252 and the second pocket 254, digging resistance may be further reduced, increasing the useful life of the bucket. More specifically, the thickness of the first concave area 252 and the second concave area 254 is less than 4 to 8 millimeters larger than that of the rest area of the base plate reinforcing plate 25.

Specifically, the base plate reinforcing plate 25 is composed of a plurality of divided plates which are connected to the base plate 13 by welding, and a weld is formed at the edge of each divided plate, so that the stress is uniformly transmitted. More specifically, the sub-plates include a plurality of front sub-plates and a plurality of rear sub-plates, the plurality of front sub-plates are arranged side by side, the plurality of rear sub-plates are arranged side by side, a first concave region 252 is arranged on the front sub-plates, a second concave region 254 is arranged on the rear sub-plates, and a weld between adjacent front sub-plates is staggered from a weld between adjacent rear sub-plates.

In this embodiment, the bucket further comprises a corner guard 27, and the corner guard 27 is arranged at the joint of the side plate 15 and the bottom plate 13. By providing the corner guards 27, the wear resistance and shock absorption of the bucket can be improved. Specifically, the corner guard 27 includes a first side wall 270 and a side wall 271, the first side wall 270 is in contact with the side plate 15, and the second side wall 271 is in contact with the bottom plate 13.

Specifically, the corner protector 27 includes a first corner protector 272 and a second corner protector 274, and a distance from the end of the second side wall 271 of the first corner protector 272 to the side panel 15 is constant, referring to fig. 7, a shape of the end of the second side wall 271 of the second corner protector 274 corresponds to a shape of the side edge of the floor reinforcing plate 25, that is, the end of the second side wall 271 of the second corner protector 274 is also curved, and the end of the second side wall 271 of the second corner protector 274 is spaced from the side edge of the floor reinforcing plate 25 by a certain distance and is spaced by a constant distance.

In this embodiment, the bucket also includes a flange 29 to couple the bucket to the swing arm via the flange 29, the flange 29 being secured to the top plate 11. Specifically, the flanges 29 are two spaced apart side by side.

In this embodiment, the bucket also includes an ear plate 31, and the ear plate 31 is attached to the flange 29 and the top plate 11. Specifically, the ear plates 31 are two spaced apart side by side.

In this embodiment, the bucket further includes side teeth 33, and the side teeth 33 are disposed on the side plates 15 and adjacent to the opening of the bucket.

In this embodiment, the bucket further includes a flitch 35, and the flitch 35 can be disposed at a position where the side plate 15 is adjacent to the opening, at an edge of the side tooth 33, and at a position where the side plate 15 is adjacent to the bottom plate 13. The flitch 35 can play wear-resisting, crashproof effect, further improves the digging force of scraper bowl.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims

1. A bucket, comprising a top plate (11), a bottom plate (13) and side plates (15), wherein one end of the bottom plate (13) is connected to one end of the top plate (11), the bottom plate (13) is bent to form a bucket shape, a certain distance is reserved between the ends, far away from each other, of the top plate (11) and the bottom plate (13) so as to form an opening of the bucket, the two side plates (15) are respectively and fixedly connected to two sides of the bottom plate (13), the two side plates (15) are also respectively and fixedly connected to two sides of the top plate (11), the bucket is characterized in that the side plates (15) comprise side blade plates (152) and side thin plates (154), the thickness of the side blade plates (152) is larger than that of the side thin plates (154), the side blade plates (152) extend from the ends, adjacent to the opening of the bucket, of the side plates (15) to the ends, adjacent to the bottom plate (13), the side thin plates (154) are distributed on the side plates (15) at intervals, and a plurality of side thin plates (154) are provided with a plurality of holes.

2. The bucket according to claim 1, characterized in that the thickness h1 of the side web (154) is related to the thickness h2 of the side blade (152) by 1/3 x h2 ≦ h1 ≦ 3/5 x h2.

3. A bucket in accordance with claim 1 wherein the areas of connection of the side edge plates (152) and the side webs (154) form bevels.

4. The bucket according to claim 1, characterized in that the bucket further comprises a main cutting plate (17), a tooth holder (19) and a tooth (21), the main cutting plate (17) is connected to the other end of the bottom plate (13) opposite to the top plate (11), the tooth holder (19) is mounted on the main cutting plate (17), the tooth (21) is mounted on the tooth holder (19), and the thickness of the main cutting plate (17) is greater than that of the bottom plate (13).

5. A bucket as claimed in claim 4, characterized in that the distance (S1) of the side webs (154) adjacent to the opening is greater than the distance (S2) of the respective side web (154) to the adjacent side web (154) and greater than the distance (S3) of the side web (154) adjacent to the bottom plate (13); of the side sheets (154) adjacent to the opening, a distance (S11) from the side sheet (154) close to the tooth (21) to the opening is greater than a distance (S12) from the side sheet (154) away from the tooth (21) to the opening; of the side webs (154) adjacent to the opening, the side web (154) farthest from the tooth (21) includes a first side (1542) toward the opening and the top plate (11) and a second side (1544) toward the bottom plate (13), a distance (S4) of the side web (154) adjacent to the side web (154) farthest from the tooth (21) toward the second side (1544) to the second side (1544) is smaller than a distance (S1) of the side web (154) adjacent to the opening and is larger than a distance (S3) of the side web (154) adjacent to the bottom plate (13).

6. The bucket according to claim 5, wherein the side plate (15) includes 7 side sheets (154), the 7 side sheets (154) include a first side sheet (A1), a second side sheet (A2), a third side sheet (A3), a fourth side sheet (A4), a fifth side sheet (A5), a sixth side sheet (A6), and a seventh side sheet (A7), the first side sheet (A1), the second side sheet (A2), and the third side sheet (A3) are adjacent to the opening, the third side sheet (A3) is closer to the tooth (21) than the first side sheet (A1) and the second side sheet (A2), the first side sheet (A1) is farther from the teeth (21) than the second and third side sheets (A2, A3), the fourth side sheet (A4), the fifth side sheet (A5), the sixth side sheet (A6), and the seventh side sheet (A7) are adjacent to the first side sheet (A1), the fourth side sheet (A4) is adjacent to the second side sheet (A2) and the bottom plate (13), the fifth side sheet (A5) is adjacent to the fourth side sheet (A4) and the bottom plate (13), and the sixth side sheet (A6) is adjacent to the top plate (11), the fifth side sheet (A5) is adjacent, the seventh side sheet (A7) is adjacent to the top plate (11) and is located on a side of the first side sheet (A1) facing away from the second side sheet (A2), the fourth side sheet (A4), the fifth side sheet (A5), the sixth side sheet (A6); wherein the distance (L18) from the third side sheet (A3) to the opening is greater than the distance (L5) from the second side sheet (A2) to the opening, the distance (L5) from the second side sheet (A2) to the opening is greater than the distance (L4) from the first side sheet (A1) to the opening, the distance (L6) from the first side sheet (A1) to the second side sheet (A2) is greater than the distance (L7) from the first side sheet (A1) to the fifth side sheet (A5), the distance (L7) from the first side sheet (A1) to the fifth side sheet (A5) is greater than the distance (L8) from the first side sheet (A1) to the sixth side sheet (A6), the distances (L1), (L2) from the seventh side sheet (A7) to two different positions of the top plate (11), the distance (L3) from the seventh side sheet (A7) to the first side sheet (A1), the distance (L6) from the sixth side sheet (A7) to the bottom plate (A5), the distance (L12) from the fifth side sheet (A5) to the bottom plate (L12), the distance (L12) from the fifth side sheet (A6) to the fourth side sheet (A6), the distance (L12) from the fourth side sheet (A6) to the bottom plate (A5) and the distance (L12), the distance (L13) from the second side thin plate (A2) to the fourth side thin plate (A4), the distance (L15) from the fourth side thin plate (A4) to the bottom plate (13), and the distance (L16) from the third side thin plate (A3) to the bottom plate (13) are equal.

7. The bucket according to claim 4, characterized in that the outer side surface of the main blade plate (17) facing the outside of the bucket is provided with a convex portion (172) and a concave portion (174), the convex portion (172) and the concave portion (174) are positioned on one side edge of the main blade plate (17) facing away from the bucket tooth (21), a plurality of convex portions (172) and a plurality of concave portions (174) are arranged at intervals, each convex portion (172) is arranged corresponding to one tooth holder (19), and each concave portion (174) is arranged corresponding to a position between two tooth holders (19).

8. The bucket set forth in claim 7 further comprising lip protectors (23), the lip protectors (23) being fixed to edges of the main blade plate (17), and each of the lip protectors (23) being located between two adjacent teeth (21); the surface of the concave part (174) facing the outer side of the bucket is tangent to the outer surface of the lip sheath (23), and the surface of the convex part (172) facing the outer side of the bucket is tangent to the outer surface of the tooth base (19).

9. A bucket as claimed in claim 7, characterized in that it further comprises a floor reinforcement plate (25), said floor reinforcement plate (25) being fixed to the outer side of said floor (13) facing towards the outside of said bucket, the sides of said floor reinforcement plate (25) facing towards said side plates (15) being curved and the middle of both said sides forming a recess; the base plate reinforcing plate (25) is composed of a plurality of divided plates which are respectively connected to the base plate (13) to form a connecting seam at the edge of each divided plate.

10. A bucket in accordance with claim 9 wherein the floor reinforcement plate (25) has a first recessed area (252) on an outer surface adjacent one end of the tooth (21) and a second recessed area (254) on an outer side surface adjacent one end of the top plate (11); alternatively, the outer side surface of the first recessed area (252) of the floor reinforcement plate (25) facing away from the bucket exterior is flush with the recessed portion (174) of the main blade plate (17).

11. An excavator comprising a bucket as claimed in any one of claims 1 to 10.