CN215483177U

CN215483177U - Bucket rod and excavator

Info

Publication number: CN215483177U
Application number: CN202121211435.2U
Authority: CN
Inventors: 许延坡; 申欣; 朱梓明; 李进; 李均刚
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-01-11
Anticipated expiration: 2031-05-26

Abstract

The utility model provides a bucket rod, includes bucket rod body, backing plate and otic placode, is equipped with the back shrouding on the bucket rod body, and the back shrouding is equipped with the welding hole that runs through first surface and second surface including relative first surface and the second surface that sets up on the back shrouding, and the backing plate is fixed in the second surface to cover the welding hole, the otic placode passes welding hole and backing plate fixed connection, and the otic placode is through executing welding and back shrouding fixed connection. The bucket rod effectively prolongs the service life of the lug plate. The utility model also relates to an excavator.

Description

Bucket rod and excavator

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a bucket rod and an excavator.

Background

The conventional welding mode of the lug plate and the bucket rod is as follows: firstly, removing a fusion area between an extended welding seam on the bucket rod and the end part of the lug plate by using a carbon arc gouging and then re-welding; then, performing carbon arc air gouging back gouging treatment on roots on two sides of the extended welding seam to form a back gouging seam; and finally, jointly and continuously welding fillet welds at two sides of the lug plate and back gouging seams at two sides of the extension weld. However, the large excavator is stressed complexly and has a severe working environment, so that the working part of the large excavator is easy to crack once the large excavator is operated improperly, and particularly the extending part of the welding line of the lug plate of the bucket rod is cracked.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a bucket rod, which effectively prolongs the service life of the lug plate.

The utility model provides a bucket rod, includes bucket rod body, backing plate and otic placode, is equipped with the back shrouding on the bucket rod body, and the back shrouding is equipped with the welding hole that runs through first surface and second surface including relative first surface and the second surface that sets up on the back shrouding, and the backing plate is fixed in the second surface to cover the welding hole, the otic placode passes welding hole and backing plate fixed connection, and the otic placode is through executing welding and back shrouding fixed connection.

In an embodiment of the present invention, the welding hole includes a first hole wall and a second hole wall that are opposite to each other, the ear plate is located between the first hole wall and the second hole wall, a first welding space is formed between the first hole wall, the second hole wall, and the ear plate is fixed to the rear sealing plate by welding in the first welding space.

In an embodiment of the present invention, an angle between the first hole wall and the ear plate is less than 90 °; the included angle between the second hole wall and the ear plate is smaller than 90 degrees.

In an embodiment of the present invention, the backing plate includes a first welding surface and a second welding surface that are disposed opposite to each other, a second welding space is formed between the first welding surface, the second welding surface, and the second surface, and the backing plate is fixed to the rear sealing plate by welding in the second welding space.

In an embodiment of the present invention, an included angle between the first welding surface and the second surface is less than 90 °; the included angle between the second welding surface and the second surface is smaller than 90 degrees.

In an embodiment of the present invention, the ear plate includes a third welding surface and a fourth welding surface that are oppositely disposed, a third welding space is formed between the third welding surface and the backing plate, and the ear plate is fixed to the backing plate by welding in the third welding space.

In an embodiment of the present invention, an included angle between the third welding surface and the backing plate is less than 90 °; and the included angle between the fourth welding surface and the backing plate is less than 90 degrees.

In an embodiment of the utility model, the rear sealing plate includes a first bending portion and a second bending portion, the first bending portion and the second bending portion are fixedly connected, an included angle between the first bending portion and the second bending portion is smaller than 90 °, the welding hole extends from the first bending portion to the second bending portion, and the ear plates are welded to both the first bending portion and the second bending portion.

In an embodiment of the present invention, the backing plate includes a first fixing section and a second fixing section, the first fixing section is fixedly connected to the second fixing section, an included angle between the first fixing section and the second fixing section is smaller than 90 °, the first fixing section is welded to the first bending portion, the second fixing section is welded to the second bending portion, and the ear plates are welded to both the first fixing section and the second fixing section.

The utility model also provides an excavator which comprises the bucket rod.

The backing plate disclosed by the utility model not only can play a role in positioning when the lug plates are welded, but also can increase the strength of the rear sealing plate, so that the rear sealing plate is stressed more uniformly, and the rear sealing plate is prevented from being damaged due to insufficient strength to a certain extent. Simultaneously, when fixing the otic placode on the shrouding of back, weld fixture carries out earlier between otic placode and the backing plate, then passes the welding hole with the otic placode, carries out weld fixture between backing plate and the second surface again, carries out weld fixture between at last otic placode and the back shrouding. Therefore, through the welding treatment to many places between otic placode and the back shrouding, to a great extent has increased the joint strength of otic placode and back shrouding, the effectual life who improves the otic placode.

Drawings

Fig. 1 is a schematic diagram of a disassembled structure of the bucket rod of the utility model.

FIG. 2 is a side view of the stick of the present invention.

FIG. 3 is an enlarged schematic view of the assembled ear plate, backing plate and rear closure plate of the present invention.

Fig. 4 is a schematic cross-sectional view of an ear plate of the present invention positioned within a weld hole without welding.

Fig. 5 is a schematic cross-sectional view of the lug plate of the present invention welded in the weld hole.

Fig. 6 is a schematic sectional view showing the structure of the ear plate and the backing plate of the present invention when they are not welded.

Fig. 7 is a schematic sectional view showing the structure of the ear plate of the present invention when welded to a backing plate.

Fig. 8 is an enlarged structural view of the ear plate of the present invention.

Detailed Description

The present application provides a dipper.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to facilitate understanding of those skilled in the art, the present application provides a specific implementation process of the technical solution provided by the present application through the following embodiments.

Referring to fig. 1 to 8, the arm includes an arm body 11, a base plate 12 and an ear plate 13, a rear sealing plate 111 is disposed on the arm body 11, the rear sealing plate 111 includes a first surface 111a and a second surface 111b that are disposed opposite to each other, a welding hole 101 that penetrates through the first surface 111a and the second surface 111b is disposed on the rear sealing plate 111, the base plate 12 is fixed to the second surface 111b and covers the welding hole 101, the ear plate 13 passes through the welding hole 101 and is fixedly connected to the base plate 12, and the ear plate 13 is fixedly connected to the rear sealing plate 111 by welding.

The backing plate 12 not only can play a role in positioning when the lug plates 13 are welded, but also can increase the strength of the rear sealing plate 111, so that the rear sealing plate 111 is stressed more uniformly, and the rear sealing plate 111 is prevented from being damaged due to insufficient strength to a certain extent. Meanwhile, when the ear plate 13 is fixed to the rear sealing plate 111, the ear plate 13 and the backing plate 12 are welded and fixed, then the ear plate 13 penetrates through the welding hole 101, then the backing plate 12 and the second surface 111b are welded and fixed, and finally the ear plate 13 and the rear sealing plate 111 are welded and fixed. Therefore, through the welding treatment of many places between otic placode 13 and back shrouding 111, to a great extent has increased the joint strength of otic placode 13 and back shrouding 111, the effectual life who improves otic placode 13.

Further, the welding hole 101 is a bent strip-shaped hole.

Further, as shown in fig. 1, 4 and 5, the welding hole 101 includes a first hole wall 101a and a second hole wall 101b opposite to each other, the ear plate 13 is located between the first hole wall 101a and the second hole wall 101b, and a first welding space 14 is formed between the first hole wall 101a, the second hole wall 101b and the ear plate 13, and the ear plate 13 is fixed on the rear closure plate 111 by welding in the first welding space 14. In this embodiment, two first welding spaces 14 are formed between the first hole wall 101a, the second hole wall 101b and the ear plate 13, one first welding space 14 is formed between the first hole wall 101a and the ear plate 13, another first welding space 14 is formed between the second hole wall 101b and the ear plate 13, the two first welding spaces 14 are distributed on two sides of the ear plate 13, and the first welding spaces 14 are triangular.

Further, as shown in fig. 4 and 5, the included angle between the first hole wall 101a and the ear plate 13 is smaller than 90 °; the angle between the second hole wall 101b and the ear plate 13 is smaller than 90 °. In this embodiment, since the included angle between the first hole wall 101a and the ear plate 13 is smaller than 90 °, a first welding gap for welding is formed between the first hole wall 101a and the ear plate 13, and the first welding gap is located in one of the two first welding spaces 14; since the included angle between the second hole wall 101b and the lug plate 13 is smaller than 90 °, a second welding gap for welding is formed between the second hole wall 101b and the lug plate 13, and the second welding gap is located in the other first welding space 14 of the two first welding spaces 14.

Further, as shown in fig. 4, the first hole wall 101a and the second hole wall 101b are respectively connected between the first surface 111a and the second surface 111b, and the distance between the first hole wall 101a and the second hole wall 101b gradually decreases from the first surface 111a toward the second surface 111 b. In the present embodiment, the minimum distance between the first hole wall 101a and the second hole wall 101b is equal to or greater than the thickness of the ear plate 13, wherein the minimum distance between the first hole wall 101a and the second hole wall 101b is preferably equal to the thickness of the ear plate 13.

Further, as shown in fig. 1, the backing plate 12 is a bent strip-shaped plate.

Further, as shown in fig. 4 and 5, the shim plate 12 includes a first welding surface 12a and a second welding surface 12b which are oppositely disposed, a second welding space 15 is formed between the first welding surface 12a, the second welding surface 12b and the second surface 111b, and the shim plate 12 is fixed to the rear cover plate 111 by welding in the second welding space 15. In the present embodiment, two second welding spaces 15 are formed between the first welding surface 12a, the second welding surface 12b and the second surface 111b, the two second welding spaces 15 are distributed on two sides of the backing plate 12, and the second welding spaces 15 are triangular.

Further, as shown in fig. 1, 4 and 5, the backing plate 12 includes a backing plate top surface 12c and a backing plate bottom surface 12d which are oppositely disposed, the backing plate top surface 12c and the backing plate bottom surface 12d are parallel to each other, the backing plate top surface 12c is close to the ear plate 13, the backing plate bottom surface 12d is far from the ear plate 13, and the first welding surface 12a and the second welding surface 12b are connected between the backing plate top surface 12c and the backing plate bottom surface 12 d.

Further, the top surface 12c of the backing plate is fixedly connected with the ear plate 13, and the width of the top surface 12c of the backing plate is larger than that of the welding hole 101, so that the backing plate 12 can be prevented from moving towards the welding hole 101 under the influence of external force.

Further, as shown in fig. 4 and 5, the included angle between the first welding surface 12a and the second surface 111b is less than 90 °; the angle between the second welding surface 12b and the second surface 111b is less than 90 °. In the present embodiment, since the angle between the first welding surface 12a and the second surface 111b is less than 90,

therefore, a third welding gap for welding is formed between the first welding surface 12a and the second surface 111b, and the third welding gap is located in one 15 of the two second welding spaces 15; since the angle between the second welding surface 12b and the second surface 111b is smaller than 90 °, a fourth welding gap for welding is formed between the second welding surface 12b and the second surface 111b, and the fourth welding gap is located in the other second welding space 15 of the two second welding spaces 15.

Further, as shown in fig. 6 and 7, the ear plate 13 includes a third welding surface 13a and a fourth welding surface 13b which are oppositely disposed, a third welding space 16 is formed between the third welding surface 13a and the fourth welding surface 13b and the backing plate 12, and the ear plate 13 is fixed on the backing plate 12 by welding in the third welding space 16. In the present embodiment, two third welding spaces 16 are formed between the third welding surface 13a, the fourth welding surface 13b and the backing plate 12, the two third welding spaces 16 are distributed on both sides of the ear plate 13, and the second welding space 15 has a triangular shape.

Further, as shown in fig. 6, 7 and 8, the ear plate 13 further includes a first ear plate side surface 13c, a second ear plate side surface 13d and an ear plate bottom surface 13e, the first ear plate side surface 13c is connected to the ear plate bottom surface 13e through a third welding surface 13a, and the second ear plate side surface 13d is connected to the ear plate bottom surface 13e through a fourth welding surface 13 b.

Further, as shown in fig. 6 and 7, the included angle between the third welding surface 13a and the backing plate 12 is less than 90 °; the angle between the fourth welding surface 13b and the backing plate 12 is less than 90 deg.. In the present embodiment, since the included angle between the third welding surface 13a and the backing plate 12 is smaller than 90 °, a fifth welding gap for welding is formed between the third welding surface 13a and the backing plate 12, and the fifth welding gap is located in one of the two third welding spaces 16; since the angle between the fourth welding surface 13b and the backing plate 12 is smaller than 90 °, a sixth welding gap for welding is formed between the fourth welding surface 13b and the backing plate 12, and the sixth welding gap is located in the other of the two third welding spaces 16.

Further, the rear sealing plate 111 includes a first bending portion 1111 and a second bending portion 1112, the first bending portion 1111 is fixedly connected to the second bending portion 1112, an included angle between the first bending portion 1111 and the second bending portion 1112 is smaller than 90 °, the welding hole 101 extends from the first bending portion 1111 to the second bending portion 1112, and the ear plate 13 is welded to both the first bending portion 1111 and the second bending portion 1112.

Further, the backing plate 12 includes a first fixed segment 121 and a second fixed segment 122, the first fixed segment 121 is fixedly connected with the second fixed segment 122, an included angle between the first fixed segment 121 and the second fixed segment 122 is smaller than 90 °, the first fixed segment 121 is welded with the first bent portion 1111, the second fixed segment 122 is welded with the second bent portion 1112, and the ear plate 13 is welded to both the first fixed segment 121 and the second fixed segment 122.

Further, the bucket rod comprises two welding holes 101 and two base plates 12, the two welding holes 101 are arranged on the rear sealing plate 111 side by side, the two base plates 12 respectively cover the two welding holes 101, and two lug plates 13 are welded on the two base plates 12.

Further, the lug plate 13 is provided with a shaft hole 102 for connecting the arm cylinder.

Further, the arm further comprises a first side plate 112, a second side plate 113, an arm top plate 114 and an arm bottom plate 115, the first side plate 112 and the second side plate 113 are arranged oppositely, the arm top plate 114, a rear sealing plate 111 and the arm bottom plate 115 are connected between the first side plate 112 and the second side plate 113, the rear sealing plate 111 is connected between the arm top plate 114 and the bottom plate, and the first side plate 112, the second side plate 113, the arm top plate 114, the rear sealing plate 111 and the arm bottom plate 115 form a box-type structure.

The utility model also relates to an excavator which comprises the bucket rod, wherein the excavator comprises a bucket, a movable arm and a bucket rod oil cylinder, one end of the bucket rod is connected with the bucket, and the other end of the bucket rod is connected with the movable arm and the bucket rod oil cylinder.

The present invention is not limited to the specific details of the above-described embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the utility model. The utility model is not described in detail in order to avoid unnecessary repetition.

Claims

1. The utility model provides a dipper, its characterized in that, includes dipper body (11), backing plate (12) and otic placode (13), be equipped with back shrouding (111) on dipper body (11), back shrouding (111) are including relative first surface (111a) and the second surface (111b) that sets up, be equipped with on back shrouding (111) and run through first surface (111a) with welding hole (101) of second surface (111b), backing plate (12) are fixed in second surface (111b), and cover welding hole (101), otic placode (13) pass welding hole (101) with backing plate (12) fixed connection, otic placode (13) through welding with back shrouding (111) fixed connection.

2. The stick of claim 1, wherein the weld aperture (101) includes first and second opposing aperture walls (101a, 101b), the lug (13) is positioned between the first and second aperture walls (101a, 101b), and a first weld space (14) is formed between the first and second aperture walls (101a, 101b) and the lug (13), and the lug (13) is secured to the rear closure plate (111) by welding in the first weld space (14).

3. The stick of claim 2, wherein the angle between the first aperture wall (101a) and the ear plate (13) is less than 90 °; the included angle between the second hole wall (101b) and the ear plate (13) is smaller than 90 degrees.

4. The stick of claim 1, wherein the shim plate (12) includes first and second oppositely disposed weld surfaces (12a, 12b), a second weld space (15) being defined between the first and second weld surfaces (12a, 12b) and the second surface (111b), the shim plate (12) being secured to the rear closure plate (111) by welding in the second weld space (15).

5. The stick of claim 4, wherein the angle between the first weld face (12a) and the second surface (111b) is less than 90 °; the angle between the second welding surface (12b) and the second surface (111b) is less than 90 deg.

6. The stick of claim 1, wherein the lug plate (13) includes a third welding surface (13a) and a fourth welding surface (13b) that are arranged opposite to each other, a third welding space (16) is formed between the third welding surface (13a) and the fourth welding surface (13b) and the backing plate (12), and the lug plate (13) is fixed to the backing plate (12) by welding in the third welding space (16).

7. The stick of claim 6, wherein the angle between the third weld face (13a) and the shim plate (12) is less than 90 °; the included angle between the fourth welding surface (13b) and the backing plate (12) is smaller than 90 degrees.

8. The bucket rod of claim 1, wherein the rear sealing plate (111) comprises a first bent portion (1111) and a second bent portion (1112), the first bent portion (1111) is fixedly connected with the second bent portion (1112), an included angle between the first bent portion (1111) and the second bent portion (1112) is smaller than 90 °, the welding hole (101) extends from the first bent portion (1111) to the second bent portion (1112), and the ear plate (13) is welded to each of the first bent portion (1111) and the second bent portion (1112).

9. The arm of claim 8, wherein the backing plate (12) includes a first fixed segment (121) and a second fixed segment (122), the first fixed segment (121) and the second fixed segment (122) are fixedly connected, an included angle between the first fixed segment (121) and the second fixed segment (122) is less than 90 °, the first fixed segment (121) is welded to the first bent portion (1111), the second fixed segment (122) is welded to the second bent portion (1112), and the ear plate (13) is welded to both the first fixed segment (121) and the second fixed segment (122).

10. An excavator comprising a stick as claimed in any one of claims 1 to 9.