Protective excavating arm for excavating loader

Abstract

The utility model provides a protective excavating arm for an excavating loader, which relates to the technical field of excavating arms and comprises an excavating front arm, and a front arm hydraulic rod is arranged at one end of the excavating front arm. According to the excavator, the first oil inlet groove is formed in the top of the excavating middle arm, the first limiting groove is formed in the excavating middle arm, the first circular groove is formed in the excavating middle arm, the second circular groove is formed in the excavating middle arm, the first cotton block is arranged in the first limiting groove, and the second oil inlet groove is formed in the top of the excavating front arm; a second limiting groove is formed in the front excavating arm, a third circular groove is formed in the front excavating arm, a fourth circular groove is formed in the front excavating arm, a second cotton block is arranged in the second limiting groove, and lubricating oil can be poured into the first limiting groove and the second limiting groove; and lubricating oil lubricates the bolt through the circular groove, so that the bolt is durable, and the excavating arm can be better protected.

Description

Technical Field

[0001] The utility model relates to the technical field of excavating arms, in particular to a protective excavating arm for an excavating loader. Background Art

[0002] A backhoe loader is a single device consisting of three pieces of construction equipment. During construction, the operator can change the working end by simply turning the seat. The main work of the backhoe loader is to dig trenches for laying pipelines and underground cables.

[0003] The existing excavator loader has a bucket at one end for shoveling work and an excavating arm at the other end for excavating work. However, the overall protection of the excavating arm of the existing excavator loaders on the market is poor. When excavating work is performed, the excavating arm is more likely to be damaged. When the excavating arm is used for a long time, the bolts will be damaged and damaged, and it is more troublesome to protect the excavating arm. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art that bolts are easily damaged and the digging arm is troublesome to protect, and proposes a protective digging arm for an excavating loader.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a protective digging arm for an excavation loader, comprising an excavating forearm, a forearm hydraulic rod is arranged at one end of the excavating forearm, an excavating bucket is arranged at the other end of the excavating forearm, the other end of the excavating bucket is connected to the forearm hydraulic rod through a transmission structure, an excavating middle arm is arranged at one end of the excavating forearm, a first middle arm hydraulic rod is arranged at one end of the excavating middle arm, the other end of the first middle arm hydraulic rod is connected to one end of the excavating forearm, a second middle arm hydraulic rod is arranged at the other end of the excavating middle arm, and an excavating rear arm is arranged at the other end of the excavating middle arm.

[0006] Preferably, a rear arm hydraulic rod is provided at one end of the excavating rear arm, and an excavating arm seat is provided at one end of the excavating rear arm.

[0007] Preferably, the other end of the second middle arm hydraulic rod is connected to one side of the digging arm seat, and the other end of the rear arm hydraulic rod is connected to one side of the digging arm seat.

[0008] Preferably, a first oil inlet groove is opened at the top of the excavating middle arm, a first limiting groove is opened inside the excavating middle arm, a first circular groove is opened inside the excavating middle arm, and a second circular groove is opened inside the excavating middle arm, and the first limiting groove is respectively connected with the first oil inlet groove, the first circular groove, and the second circular groove.

[0009] Preferably, a first cotton block is arranged inside the first limiting groove, and a first oil cover is arranged inside the first oil inlet groove.

[0010] Preferably, a second oil inlet groove is opened at the top of the excavating forearm, a second limiting groove is opened inside the excavating forearm, a third circular groove is opened inside the excavating forearm, and a fourth circular groove is opened inside the excavating forearm. The second limiting groove is respectively connected with the second oil inlet groove, the third circular groove, and the fourth circular groove. A second cotton block is arranged inside the second limiting groove, and a second oil cover is arranged inside the second oil inlet groove.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, a first oil inlet groove is opened at the top of the excavating middle arm, a first limiting groove is opened inside the excavating middle arm, a first circular groove is opened inside the excavating middle arm, a second circular groove is opened inside the excavating middle arm, a first cotton block is arranged inside the first limiting groove, a second oil inlet groove is opened at the top of the excavating forearm, a second limiting groove is opened inside the excavating forearm, a third circular groove is opened inside the excavating forearm, a fourth circular groove is opened inside the excavating forearm, and a second cotton block is arranged inside the second limiting groove. Lubricating oil can be poured into the first limiting groove and the second limiting groove. When the excavator is working, it vibrates, causing the lubricating oil to lubricate the bolts through the circular groove, thereby making the bolts durable and better protecting the excavating arm.

[0013] 2. In the utility model, a forearm hydraulic rod is arranged at one end of the excavating forearm, an excavating bucket is arranged at the other end of the excavating forearm, the other end of the excavating bucket is connected to the forearm hydraulic rod through a transmission structure, an excavating middle arm is arranged at one end of the excavating forearm, a first middle arm hydraulic rod is arranged at one end of the excavating middle arm, the other end of the first middle arm hydraulic rod is connected to one end of the excavating forearm, a second middle arm hydraulic rod is arranged at the other end of the excavating middle arm, an excavating rear arm is arranged at the other end of the excavating middle arm, a rear arm hydraulic rod is arranged at one end of the excavating rear arm, and an excavating arm seat is arranged at one end of the excavating rear arm. By arranging the forearm hydraulic rod, the first middle arm hydraulic rod, the second middle arm hydraulic rod and the rear arm hydraulic rod, inspection and replacement are simpler and protection of the excavating arm is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structural diagram of a protective digging arm for an excavator loader;

[0015] Figure 2 The utility model provides a side perspective structural diagram of a protective digging arm for an excavator loader;

[0016] Figure 3 The utility model provides a three-dimensional cross-sectional view of an excavation middle arm of a protective excavation arm for an excavator loader;

[0017] Figure 4The utility model provides a three-dimensional cross-sectional view of an excavation front arm of a protective excavation arm for an excavation loader.

[0018] Legend: 1. Excavation front arm; 2. Forearm hydraulic rod; 3. Excavation bucket; 4. Excavation middle arm; 5. First middle arm hydraulic rod; 6. Second middle arm hydraulic rod; 7. Excavation rear arm; 8. Rear arm hydraulic rod; 9. Excavation arm seat; 10. First oil inlet groove; 11. First limiting groove; 12. First circular groove; 13. Second circular groove; 14. First cotton block; 15. First oil cover; 16. Second oil inlet groove; 17. Second limiting groove; 18. Third circular groove; 19. Fourth circular groove; 20. Second cotton block; 21. Second oil cover. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0021] Embodiment 1, as Figure 1 - Figure 4 As shown, the utility model provides a protective digging arm for an excavator loader, comprising an excavating front arm 1, a forearm hydraulic rod 2 is arranged at one end of the excavating front arm 1, an excavating bucket 3 is arranged at the other end of the excavating front arm 1, the other end of the excavating bucket 3 is connected to the forearm hydraulic rod 2 through a transmission structure, an excavating middle arm 4 is arranged at one end of the excavating front arm 1, a first middle arm hydraulic rod 5 is arranged at one end of the excavating middle arm 4, the other end of the first middle arm hydraulic rod 5 is connected to one end of the excavating front arm 1, a second middle arm hydraulic rod 6 is arranged at the other end of the excavating middle arm 4, and an excavating rear arm 7 is arranged at the other end of the excavating middle arm 4.

[0022] The effect achieved by the entire embodiment 1 is that a forearm hydraulic rod 2 is set at one end of the excavating forearm 1, an excavating bucket 3 is set at the other end of the excavating forearm 1, and the other end of the excavating bucket 3 is connected to the forearm hydraulic rod 2 through a transmission structure, which can achieve the effect of making the excavating bucket 3 move with the extension and retraction of the forearm hydraulic rod 2; an excavating middle arm 4 is set at one end of the excavating forearm 1, a first middle arm hydraulic rod 5 is set at one end of the excavating middle arm 4, and the other end of the first middle arm hydraulic rod 5 is connected to one end of the excavating forearm 1, which can achieve the effect of making the excavating forearm 1 move with the extension and retraction of the first middle arm hydraulic rod 5; a second middle arm hydraulic rod 6 is set at the other end of the excavating middle arm 4, and an excavating rear arm 7 is set at the other end of the excavating middle arm 4, which can achieve the effect of making the excavating rear arm 7 more firmly fixed.

[0023] Embodiment 2, as Figure 1 - Figure 4 As shown, a rear arm hydraulic rod 8 is provided at one end of the excavation rear arm 7, and an excavation arm seat 9 is provided at one end of the excavation rear arm 7; the other end of the second middle arm hydraulic rod 6 is connected to one side of the excavation arm seat 9, and the other end of the rear arm hydraulic rod 8 is connected to one side of the excavation arm seat 9; a first oil inlet groove 10 is provided at the top of the excavation middle arm 4, a first limiting groove 11 is provided inside the excavation middle arm 4, a first circular groove 12 is provided inside the excavation middle arm 4, and a second circular groove 13 is provided inside the excavation middle arm 4, and the first limiting groove 11 is respectively connected to the first oil inlet groove 10, the first circular groove 12, and the second circular groove 13 are interconnected; a first cotton block 14 is arranged inside the first limiting groove 11, and a first oil cover 15 is arranged inside the first oil inlet groove 10; a second oil inlet groove 16 is opened on the top of the excavating forearm 1, a second limiting groove 17 is opened inside the excavating forearm 1, a third circular groove 18 is opened inside the excavating forearm 1, and a fourth circular groove 19 is opened inside the excavating forearm 1, the second limiting groove 17 is respectively interconnected with the second oil inlet groove 16, the third circular groove 18, and the fourth circular groove 19, a second cotton block 20 is arranged inside the second limiting groove 17, and a second oil cover 21 is arranged inside the second oil inlet groove 16.

[0024] The effect achieved by the entire embodiment 2 is that by setting a rear arm hydraulic rod 8 at one end of the excavating rear arm 7 and setting an excavating arm seat 9 at one end of the excavating rear arm 7, the excavating arm seat 9 can be fixed more stably; by connecting the other end of the second middle arm hydraulic rod 6 to one side of the excavating arm seat 9, and the other end of the rear arm hydraulic rod 8 to one side of the excavating arm seat 9, the effect of the excavating middle arm 4 can be adjusted by the telescopic effect of the second middle arm hydraulic rod 6; by opening a first oil inlet groove 10 at the top of the excavating middle arm 4, opening a first limiting groove 11 inside the excavating middle arm 4, opening a first circular groove 12 inside the excavating middle arm 4, and opening a second circular groove 13 inside the excavating middle arm 4, the first limiting groove 11 is respectively connected with the first oil inlet groove 10, the first circular groove 12, and the second circular groove 13, so that the lubricating oil can be poured into the first limiting groove 11, and the excavator vibrates when working, resulting in lubrication. The effect of oil lubricating the bolts through the circular groove; the first cotton block 14 is arranged inside the first limiting groove 11, and the first oil cover 15 is arranged inside the first oil inlet groove 10, so that the first cotton block 14 can better absorb the lubricating oil; the second oil inlet groove 16 is opened at the top of the excavating forearm 1, the second limiting groove 17 is opened inside the excavating forearm 1, the third circular groove 18 is opened inside the excavating forearm 1, and the fourth circular groove 19 is opened inside the excavating forearm 1, the second limiting groove 17 is respectively connected with the second oil inlet groove 16, the third circular groove 18, and the fourth circular groove 19, the second limiting groove 17 is arranged inside the second limiting groove 17, and the second oil cover 21 is arranged inside the second oil inlet groove 16, the lubricating oil can be poured into the second limiting groove 17, and the excavator vibrates when working, causing the lubricating oil to lubricate the bolts through the circular groove, so that the bolts are durable and the excavating arm can be better protected.

[0025] Working principle: the staff opens a first oil inlet groove 10 at the top of the excavation middle arm 4, opens a first limiting groove 11 inside the excavation middle arm 4, opens a first circular groove 12 inside the excavation middle arm 4, opens a second circular groove 13 inside the excavation middle arm 4, and arranges a first cotton block 14 inside the first limiting groove 11, opens a second oil inlet groove 16 at the top of the excavation forearm 1, opens a second limiting groove 17 inside the excavation forearm 1, opens a third circular groove 18 inside the excavation forearm 1, opens a fourth circular groove 19 inside the excavation forearm 1, and arranges a second cotton block 20 inside the second limiting groove 17. Lubricating oil can be poured into the first limiting groove 11 and the second limiting groove 17, and the first cotton block 14 and the second cotton block 20 absorb the lubricating oil. When the excavator is working, it vibrates, and the first cotton block 14 and the second cotton block 20 are squeezed, causing the lubricating oil to lubricate the bolts through the circular groove, thereby making the bolts durable and providing better protection for the excavation arm.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A protective digging arm for an excavator loader, comprising a digging forearm (1), characterized in that: A forearm hydraulic rod (2) is arranged at one end of the excavating forearm (1), an excavating bucket (3) is arranged at the other end of the excavating forearm (1), the other end of the excavating bucket (3) is connected to the forearm hydraulic rod (2) via a transmission structure, an excavating middle arm (4) is arranged at one end of the excavating forearm (1), a first middle arm hydraulic rod (5) is arranged at one end of the excavating middle arm (4), the other end of the first middle arm hydraulic rod (5) is connected to one end of the excavating forearm (1), a second middle arm hydraulic rod (6) is arranged at the other end of the excavating middle arm (4), and an excavating rear arm (7) is arranged at the other end of the excavating middle arm (4); A first oil inlet groove (10) is provided at the top of the excavating middle arm (4), a first limiting groove (11) is provided inside the excavating middle arm (4), a first circular groove (12) is provided inside the excavating middle arm (4), and a second circular groove (13) is provided inside the excavating middle arm (4), and the first limiting groove (11) is respectively connected with the first oil inlet groove (10), the first circular groove (12), and the second circular groove (13); A first cotton block (14) is disposed inside the first limiting groove (11), and a first oil cover (15) is disposed inside the first oil inlet groove (10); A second oil inlet groove (16) is provided at the top of the excavating front arm (1), a second limiting groove (17) is provided inside the excavating front arm (1), a third circular groove (18) is provided inside the excavating front arm (1), and a fourth circular groove (19) is provided inside the excavating front arm (1); the second limiting groove (17) is connected to the second oil inlet groove (16), the third circular groove (18), and the fourth circular groove (19) respectively; a second cotton block (20) is provided inside the second limiting groove (17), and a second oil cover (21) is provided inside the second oil inlet groove (16).

2. The protective digging arm for an excavator loader according to claim 1, characterized in that: A rear arm hydraulic rod (8) is provided at one end of the excavating rear arm (7), and an excavating arm seat (9) is provided at one end of the excavating rear arm (7).

3. The protective digging arm for an excavator loader according to claim 2, characterized in that: The other end of the second middle arm hydraulic rod (6) is connected to one side of the digging arm seat (9), and the other end of the rear arm hydraulic rod (8) is connected to one side of the digging arm seat (9).

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