Bucket rod and excavator
By designing the rear curved plate of the bucket arm into a split structure and splicing multiple plates together, the problem of high difficulty and high cost in manufacturing the existing bucket arm is solved, and the production efficiency and economy are improved.
Patent Information
- Application Number
- CN202323596331.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2033-12-27
AI Technical Summary
The production and manufacturing of existing sticks is difficult, resulting in high production costs.
The back-bent plate is used as a split structure, and multiple plates are spliced in sequence from the first end to the second end. The bending angle is small, which simplifies the production and manufacturing process.
The manufacturing difficulty and cost of the rear bending plate are reduced, and the production efficiency and economy of the bucket arm are improved.
Smart Images
Figure CN222375523U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of engineering machinery, and in particular relates to a bucket arm and an excavator using the bucket arm. Background Art
[0002] The long arm connected to the bucket on the excavator is usually called the bucket arm. The bucket arm is the main load-bearing part of the excavator. At present, the main body of the bucket arm is a box-shaped structure formed by welding the upper cover plate, the lower bottom plate, the rear bent plate and the left and right side plates. The rear bent plate is an acute-angle plate structure formed by bending a piece of plate. The bending angle is large and the manufacturing difficulty is high, resulting in a high production cost of the bucket arm. Utility Model Content
[0003] In view of the above-mentioned deficiencies or defects in the prior art, the utility model provides a boom, aiming to solve the technical problems of high difficulty in manufacturing and high production cost of the prior art boom.
[0004] To achieve the above-mentioned purpose, the utility model provides a boom, which includes an upper cover plate, a lower base plate and a rear bent plate, the upper cover plate and the lower base plate are arranged in an upper and lower interval, the first end of the rear bent plate is connected to the rear end of the upper cover plate, the second end of the rear bent plate is connected to the rear end of the lower base plate, and the rear bent plate includes a plurality of plates spliced in sequence from the first end to the second end.
[0005] Optionally, the plurality of plates include a first plate and a second plate, the front end of the first plate and the front end of the second plate respectively correspond to the rear end of the upper cover plate and the rear end of the lower base plate and are spliced with each other, and the rear end of the first plate and the rear end of the second plate are respectively bent toward each other and spliced with each other.
[0006] Optionally, the rear end of the first plate body and the rear end of the second plate body transition smoothly.
[0007] Optionally, the front end of the first plate body and the front end of the second plate body are respectively welded to the rear end of the upper cover plate and the rear end of the lower base plate, and the rear end of the first plate body and the rear end of the second plate body are welded to each other.
[0008] Optionally, the boom further includes a connecting ear plate, which is connected to the outer side wall of the first plate body and the outer side wall of the second plate body, and a first reinforcing rib plate is connected between the inner side wall of the first plate body and the inner side wall of the second plate body.
[0009] Optionally, the boom further includes a rear support disposed between the rear end of the lower base plate and the first plate body, and a second reinforcing rib plate is connected between the rear support and the inner side wall of the first plate body.
[0010] Optionally, the rear support includes a rear support tube and two rear support seats respectively formed on the two end circumferential walls of the rear support tube, the two rear support seats are respectively provided with a first butter through hole, the two end circumferential walls of the rear support tube are respectively provided with a second butter through hole, and the two first butter through holes are correspondingly connected to the two second butter through holes.
[0011] Optionally, the boom also includes a front support arranged between the upper cover plate and the front end of the lower base plate, the front support including a front support tube and two front support seats respectively formed on the two end peripheral walls of the front support tube, the two front support seats are respectively provided with a third butter through hole, the two end peripheral walls of the front support tube are respectively provided with a fourth butter through hole, and the two third butter through holes are correspondingly connected to the two fourth butter through holes.
[0012] Optionally, the boom further includes an anti-collision strip, which is disposed on the outer side wall of the lower base plate and has a front end extending to the front end of the lower base plate.
[0013] The utility model also provides an excavator, which comprises the above-mentioned bucket arm.
[0014] Through the above technical scheme, in the boom of the utility model, the rear bend plate includes a plurality of plate bodies spliced in sequence from the first end to the second end, that is, the rear bend plate is a split structure. During the production process, the bending angle of each plate body is small. Such a setting can greatly reduce the production of the rear bend plate, thereby greatly reducing the production cost of the boom.
[0015] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:
[0017] Figure 1 This is a schematic diagram of the structure of a bucket arm in one embodiment of the utility model;
[0018] Figure 2 for Figure 1 Structural schematic diagram of the middle front support;
[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the middle and rear support.
[0020] Description of reference numerals:
[0021] 1 Upper cover
[0022] 2 Lower base plate
[0023] 3 Back Bend Plate
[0024] 31 first plate 32 second plate
[0025] 4 First stiffener plate
[0026] 5 Rear support
[0027] 51 rear support tube 52 rear support seat
[0028] 6 Second stiffener plate
[0029] 7 front support
[0030] 71 front support tube 72 front support seat
[0031] 8 Anti-collision strips
[0032] 9 Connecting ear plate DETAILED DESCRIPTION
[0033] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.
[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.
[0035] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings or are used to describe the relative positional relationships of components in the vertical, perpendicular or gravity direction.
[0036] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0037] The utility model firstly provides a bucket rod.
[0038] In one embodiment, referring to Figure 1 As shown, the boom includes an upper cover plate 1, a lower base plate 2 and a rear bend plate 3. The upper cover plate 1 and the lower base plate 2 are arranged in an upper and lower interval. The first end of the rear bend plate 3 is connected to the rear end of the upper cover plate 1, and the second end of the rear bend plate 3 is connected to the rear end of the lower base plate 2. The rear bend plate 3 includes a plurality of plates spliced in sequence from the first end to the second end.
[0039] It should be noted that the end of the boom used to connect to the bucket or attachment is the front end of the boom, and the other end of the boom used to connect to the boom is the rear end of the boom. For reference, the end of the upper cover 1 close to the front end of the boom is the front end of the upper cover 1, and the end of the upper cover 1 close to the rear end of the boom is the rear end of the upper cover 1. The end of the lower base plate 2 close to the front end of the boom is the front end of the lower base plate 2, and the end of the lower base plate 2 close to the rear end of the boom is the rear end of the lower base plate 2.
[0040] In the boom of this embodiment, the rear bend plate 3 includes a plurality of plate bodies sequentially spliced from the first end to the second end, that is, the rear bend plate 3 is a split structure. During the production process, the bending angle of each plate body is small. Such a setting can greatly reduce the production of the rear bend plate 3, thereby greatly reducing the production cost of the boom.
[0041] Specifically, the boom also includes two side plates that are opposite and spaced apart, and the upper cover plate 1, the lower bottom plate 2 and the rear bent plate 3 surround the edges of the two side plates, thereby forming a boom body with a box structure through the upper cover plate 1, the lower bottom plate 2, the rear bent plate 3 and the two side plates.
[0042] In one embodiment, referring to Figure 1 As shown, the multiple plates include a first plate 31 and a second plate 32, the front end of the first plate 31 and the front end of the second plate 32 correspond to the rear end of the upper cover plate 1 and the rear end of the lower base plate 2 respectively and are spliced with each other, and the rear end of the first plate 31 and the rear end of the second plate 32 are bent toward each other and spliced with each other.
[0043] It should be noted that the end of the first plate body 31 close to the front end of the boom is the front end of the first plate body 31, the end of the first plate body 31 close to the rear end of the boom is the rear end of the first plate body 31, the end of the second plate body 32 close to the front end of the boom is the front end of the second plate body 32, and the end of the second plate body 32 close to the rear end of the boom is the rear end of the second plate body 32.
[0044] In this way, the first plate body 31 and the second plate body 32 together form the rear bent plate 3, and only the rear end needs to be bent, and the bending angle is small, so the difficulty of production is relatively low.
[0045] In one embodiment, referring to Figure 1 As shown, the rear end of the first plate body 31 and the rear end of the second plate body 32 are smoothly transitioned. Such a configuration effectively avoids stress concentration at the connection between the rear end of the first plate body 31 and the rear end of the second plate body 32, thereby effectively improving the structural strength and service life of the rear bent plate 3.
[0046] In one embodiment, the front end of the first plate 31 and the front end of the second plate 32 are respectively welded to the rear end of the upper cover plate 1 and the rear end of the lower bottom plate 2, and the rear end of the first plate 31 and the rear end of the second plate 32 are welded to each other. This arrangement makes the arm easy to manufacture, has a low production cost, and has good structural strength.
[0047] In one embodiment, referring to Figure 1 As shown, the boom also includes a connecting ear plate 9, which is connected to the outer wall of the first plate body 31 and the outer wall of the second plate body 32, and a first reinforcing rib plate 4 is connected between the inner wall of the first plate body 31 and the inner wall of the second plate body 32.
[0048] It can be understood that by connecting the first reinforcing rib plate 4 between the inner wall of the first plate body 31 and the inner wall of the second plate body 32, the stress concentration problem at the connecting ear plate 9 can be effectively alleviated and the connection strength of the boom can be improved.
[0049] Specifically, one end of the first reinforcing rib plate 4 is welded to the inner wall of the first plate body 31 , and the other end is welded to the inner wall of the second plate body 32 .
[0050] In one embodiment, referring to Figure 1 As shown, the boom further includes a rear support 5 disposed between the rear end of the lower base plate 2 and the first plate body 31 , and a second reinforcing rib plate 6 is connected between the rear support 5 and the inner side wall of the first plate body 31 .
[0051] It can be understood that by connecting the second reinforcing rib plate 6 between the rear support 5 and the inner wall of the first plate body 31, the stress concentration problem of the rear support 5 can be effectively alleviated and the connection strength of the boom can be improved.
[0052] Specifically, one end of the second reinforcing rib plate 6 is welded to the rear support 5 , and the other end is welded to the inner wall of the first plate body 31 .
[0053] In one embodiment, referring to Figure 3 As shown, the rear support 5 includes a rear support tube 51 and two rear support seats 52 respectively formed on the two end peripheral walls of the rear support tube 51, the two rear support seats 52 are respectively provided with a first butter through hole, and the two end peripheral walls of the rear support tube 51 are respectively provided with a second butter through hole, and the two first butter through holes are correspondingly connected to the two second butter through holes.
[0054] It can be understood that in the existing boom, in order to input butter into the rear support tube 51, a butter tube connected to the inside of the rear support tube 51 is welded on the rear support tube 51. Under such a structure, the butter tube on the rear support tube 51 is easily desoldered and falls off or even breaks in the internal box under harsh working conditions, which brings great inconvenience to subsequent maintenance. In the boom of this embodiment, a first butter through hole is opened in the rear support seat 52, and a second butter through hole is opened in the peripheral wall of the end of the rear support tube 51. The first butter through hole is connected to the second butter through hole correspondingly, thereby forming a butter channel. Butter can enter the rear support tube 51 through the butter channel, and there is no need to weld the butter tube, thereby effectively improving the reliability of the structure.
[0055] Specifically, the rear support seat 52 of the rear support 5 is welded to the side plate and the lower bottom plate 2 of the boom body, and the first butter through hole is located on the side of the rear support seat 52 facing the outside of the boom body.
[0056] In order to alleviate the stress concentration of the weld, the weld between the rear support seat 52 and the side plate of the boom body can be set to be fan-shaped.
[0057] In one embodiment, referring to Figure 2 As shown, the boom also includes a front support 7 arranged between the front ends of the upper cover plate 1 and the lower base plate 2, the front support 7 includes a front support tube 71 and two front support seats 72 respectively formed on the two end peripheral walls of the front support tube 71, the two front support seats 72 are respectively provided with third butter through holes, the two end peripheral walls of the front support tube 71 are respectively provided with fourth butter through holes, and the two third butter through holes are correspondingly connected to the two fourth butter through holes.
[0058] It can be understood that in the existing boom, in order to input butter into the front support tube 71, a butter tube connected to the inside of the front support tube 71 is welded on the front support tube 71. Under such a structure, the butter tube on the front support tube 71 is easily desoldered and falls off or even breaks in the internal box under harsh working conditions, which brings great inconvenience to subsequent maintenance. In the boom of this embodiment, a third butter through hole is opened on the front support seat 72, and a fourth butter through hole is opened on the end peripheral wall of the front support tube 71. The third butter through hole is correspondingly connected to the fourth butter through hole, thereby forming a butter channel. Butter can enter the front support tube 71 through the butter channel, and there is no need to weld the butter tube, thereby effectively improving the reliability of the structure.
[0059] Specifically, the front support seat 72 of the front support 7 is welded to the upper cover plate 1, the lower bottom plate 2 and the two side plates of the boom body, and the third butter through hole is located on the side of the front support seat 72 facing the outside of the boom body.
[0060] In one embodiment, referring to Figure 1As shown, the arm also includes an anti-collision strip 8, which is arranged on the outer side wall of the lower bottom plate 2 and the front end extends to the front end of the lower bottom plate 2. In this way, the anti-collision strip 8 protects the outer side wall of the lower bottom plate 2 and effectively improves the service life of the arm.
[0061] Specifically, the anti-collision strip 8 can be an elastic member with a certain elasticity such as rubber, and can be fixedly installed on the outer side wall of the lower base plate 2 by fasteners or bonding.
[0062] The utility model also provides an excavator, which includes the above bucket arm. The specific structure of the bucket arm refers to the above embodiments. Since the excavator adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.
[0063] The above are only preferred implementation modes of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
[0064] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.
[0065] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.
Claims
1. A bucket arm, characterized in that: The boom comprises an upper cover plate (1), a lower base plate (2) and a rear bend plate (3); the upper cover plate (1) and the lower base plate (2) are arranged in an upper and lower spacing manner; the first end of the rear bend plate (3) is connected to the rear end of the upper cover plate (1); the second end of the rear bend plate (3) is connected to the rear end of the lower base plate (2); and the rear bend plate (3) comprises a plurality of plate bodies which are sequentially spliced from the first end to the second end.
2. The arm according to claim 1, characterized in that: The plurality of plate bodies include a first plate body (31) and a second plate body (32); the front end of the first plate body (31) and the front end of the second plate body (32) respectively correspond to the rear end of the upper cover plate (1) and the rear end of the lower base plate (2) and are spliced to each other; the rear end of the first plate body (31) and the rear end of the second plate body (32) are respectively bent toward each other and spliced to each other.
3. The arm according to claim 2, characterized in that: The rear end of the first plate body (31) and the rear end of the second plate body (32) are smoothly transitioned.
4. The arm according to claim 2, characterized in that: The front end of the first plate body (31) and the front end of the second plate body (32) are respectively welded to the rear end of the upper cover plate (1) and the rear end of the lower base plate (2), and the rear end of the first plate body (31) and the rear end of the second plate body (32) are welded to each other.
5. The arm according to claim 2, characterized in that: The boom also includes a connecting ear plate (9), which is connected to the outer wall of the first plate body (31) and the outer wall of the second plate body (32), and a first reinforcing rib plate (4) is connected between the inner wall of the first plate body (31) and the inner wall of the second plate body (32).
6. The arm according to claim 2, characterized in that: The boom also includes a rear support (5) arranged between the rear end of the lower base plate (2) and the first plate body (31), and a second reinforcing rib plate (6) is connected between the rear support (5) and the inner side wall of the first plate body (31).
7. The arm according to claim 6, characterized in that: The rear support (5) comprises a rear support tube (51) and two rear support seats (52) respectively formed on the circumferential walls at both ends of the rear support tube (51), the two rear support seats (52) respectively have a first butter through hole, the circumferential walls at both ends of the rear support tube (51) respectively have a second butter through hole, and the two first butter through holes are correspondingly connected to the two second butter through holes.
8. The arm according to claim 1, characterized in that: The boom also includes a front support (7) arranged between the front ends of the upper cover plate (1) and the lower base plate (2), the front support (7) including a front support tube (71) and two front support seats (72) respectively formed on the two end peripheral walls of the front support tube (71), the two front support seats (72) respectively having a third grease through hole, the two end peripheral walls of the front support tube (71) respectively having a fourth grease through hole, the two third grease through holes being correspondingly connected to the two fourth grease through holes.
9. The arm according to claim 1, characterized in that: The boom also includes an anti-collision strip (8), which is arranged on the outer side wall of the lower base plate (2) and has a front end extending to the front end of the lower base plate (2).
10. An excavator, characterized in that: The excavator comprises the arm according to any one of claims 1 to 9.