CN216713142U

CN216713142U - Large arm side swing mechanism for small excavator

Info

Publication number: CN216713142U
Application number: CN202123033937.3U
Authority: CN
Inventors: 姜朝相
Original assignee: Shandong Jingtuo Construction Machinery Co ltd
Current assignee: Shandong Jingtuo Construction Machinery Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-06-10
Anticipated expiration: 2031-12-06

Abstract

The utility model relates to the technical field of excavators, in particular to a large arm side swing mechanism for a small excavator, which comprises a side swing loading mechanism, a side swing head and a hydraulic cylinder, wherein the side swing head is positioned at one end of the side swing loading mechanism, the hydraulic cylinder is positioned above the side swing loading mechanism, a hydraulic shaft is controlled to stretch and retract through the hydraulic cylinder, and then the side swing head is driven to swing left and right through a connecting plate.

Description

Large arm side swing mechanism for small excavator

Technical Field

The utility model relates to the technical field of excavators, in particular to a large arm side swing mechanism for a small excavator.

Background

With the acceleration of the national urbanization process, the mini excavator integrating the characteristics of flexibility, multiple functions, wide application and the like is used more and more, the pushing shovel mechanism is used as an indispensable mechanism of the mini excavator, the using performance of the mini excavator is concerned, the quality of the pushing shovel mechanism plays a vital role in the mini excavator, and the large arm side swing mechanism of the mini excavator is a main component for connecting the excavator body and the pushing shovel mechanism, so that the performance of the large arm side swing mechanism of the mini excavator is very important.

However, the boom swing mechanism of the conventional mini excavator has a great defect in use, the working position of the boom swing mechanism of the conventional mini excavator is fixed, and when the excavator performs excavation work, the actuating mechanism of the upper vehicle mechanism of the excavator cannot adjust the push shovel mechanism to the left or right according to the actual use occasion, so that the flexibility is poor in use, and the use occasion is limited.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model provides a big arm side swing mechanism for a small excavator.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to a large arm side swing mechanism for a small excavator, which comprises a side swing loading mechanism, a side swing head and a hydraulic cylinder, wherein the side swing head is positioned at one end of the side swing loading mechanism, the hydraulic cylinder is horizontally arranged at one side above the side swing loading mechanism, a bottom plate is arranged on the inner side wall of one side, close to the hydraulic cylinder, of the side swing loading mechanism, a first notch is formed in the bottom plate, a first connecting ring is arranged at the bottom end of the hydraulic cylinder, a pin shaft is arranged in the middle of the first notch, and the pin shaft penetrates through the first connecting ring to enable the hydraulic cylinder to be hinged with the first connecting ring, so that the hydraulic cylinder can stably and flexibly swing.

The baffle is installed to the top of side pendulum loading mechanism, and the baffle is "U" type structure of invering, and the baffle is located the top of go-between one, and the top and the both sides of go-between one and pneumatic cylinder can be protected to the baffle, avoid when the excavator operation, go-between one and pneumatic cylinder receive to collide with and cause the damage.

The one end that the side pendulum loading mechanism is close to the pneumatic cylinder has been seted up square hole one, square hole one is square structure, the pneumatic cylinder is located inside square hole one, make the pneumatic cylinder when the horizontal hunting, square hole one can provide sufficient space for the pneumatic cylinder, make the pneumatic cylinder can swing, one side that the side pendulum loading mechanism is close to the pneumatic cylinder is seted up square hole two in addition, square hole two is square structure, the one end that the bottom plate was kept away from to the pneumatic cylinder is installed the fixed column, make the pneumatic cylinder when the horizontal hunting, the fixed column can be at the inside pull of square hole two, the swing range of restriction pneumatic cylinder, avoid the pneumatic cylinder swing range too big, cause the uncontrolled emergence of excavator to turn on one's side.

One end of the hydraulic cylinder penetrates through the hydraulic shaft, the other end, far away from the hydraulic cylinder, of the hydraulic shaft is provided with a second connecting ring, and one side, close to the hydraulic shaft, of the side swing head is provided with two connecting plates, so that the hydraulic shaft and the side swing head are connected with the connecting plates through the second connecting ring.

The end, far away from the hydraulic shaft, of each of the two connecting plates is provided with a third notch, the connecting ring is located between the two connecting plates, a second bolt penetrates through the middle of the connecting ring and the middle of the two notches, the connecting ring is hinged to the two notches, and a second nut is installed at the bottom of the second bolt, so that the connecting plates and the connecting ring can move, and the side swinging head can deflect flexibly in the left and right directions.

The cross section of the side swinging head is of a transverse U-shaped structure, a second notch is formed in one side of the side swinging head leaning near-side swing boarding mechanism, a first bolt penetrates through the middle portions of the side swing boarding mechanism and the second notch, the side swinging head is hinged to the side swing boarding mechanism, a first nut is installed at the bottom of the first bolt, and therefore the side swinging head and the side swinging boarding mechanism can flexibly move and can swing left and right.

The utility model has the beneficial effects that:

(1) according to the large arm side swing mechanism for the small excavator, the hydraulic cylinder is used for controlling the hydraulic shaft to stretch and retract, and then the side swing head is driven to swing left and right through the connecting plate, so that the angle of the push shovel mechanism of the excavator can be adjusted left and right when the excavator carries out excavation operation, the push shovel mechanism can be adjusted left and right according to the actual use site when the excavator is in actual use, the excavator is more suitable for the actual work scene, the use range of the excavator is expanded, and the work efficiency of the excavator is further improved.

(2) According to the large arm side swinging mechanism for the small excavator, the first connecting ring is arranged at the bottom end of the hydraulic cylinder, the pin shaft is arranged in the middle of the first notch, and penetrates through the first connecting ring, so that the hydraulic cylinder is hinged with the first connecting ring, the hydraulic cylinder can swing flexibly while keeping stable, the position stability and the swinging flexibility of the hydraulic cylinder are guaranteed, and the hydraulic cylinder can better provide power support for the side swinging head when swinging leftwards and rightwards.

(3) According to the large arm side swing mechanism for the small excavator, the baffle is arranged above the side swing loading mechanism, the baffle is in an inverted U-shaped structure, and the baffle is arranged above the connecting ring I, so that the baffle can protect the upper part and two sides of the connecting ring I and the hydraulic cylinder, the connecting ring I and the hydraulic cylinder are prevented from being damaged due to collision during operation of the excavator, and the safety of the connecting ring I and the hydraulic cylinder is ensured.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of the overall structure of the present invention in a side-swinging state.

FIG. 2 is a schematic diagram showing the overall structure of the present invention.

FIG. 3 is a schematic structural view of the side-swing boarding mechanism shown in FIG. 2.

FIG. 4 is an enlarged view of the area A in FIG. 3 according to the present invention.

FIG. 5 is a schematic view of the side-swinging head structure shown in FIG. 2 according to the present invention.

FIG. 6 is a schematic view of the hydraulic cylinder of FIG. 2 according to the present invention.

Fig. 7 is a schematic view of the structure of the bolt shown in fig. 2.

Fig. 8 is a schematic view of the nut of fig. 2 according to the present invention.

FIG. 9 is a schematic view of the second bolt of FIG. 2 according to the present invention.

Fig. 10 is a schematic structural view of the second nut shown in fig. 2 of the present invention.

Fig. 11 is a schematic view of the pin structure of fig. 2 according to the present invention.

In the figure: 1. a side-swinging vehicle-loading mechanism; 2. laterally swinging the head; 3. a baffle plate; 4. a hydraulic cylinder; 5. a hydraulic shaft; 6. a connecting ring I; 7. a connecting ring II; 8. a first square hole; 9. a second square hole; 10. fixing a column; 11. a base plate; 12. a first notch; 13. a connecting plate; 14. a second notch; 15. a notch III; 16. a first bolt; 1601. a first nut; 17. a second bolt; 1701. a second nut; 18. and (7) a pin shaft.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1 to 11, a boom side-swinging mechanism for a mini excavator comprises a side-swinging vehicle-lifting mechanism 1, a side-swinging head 2 and a hydraulic cylinder 4, wherein the side-swinging head 2 is located at one end of the side-swinging vehicle-lifting mechanism 1, the hydraulic cylinder 4 is horizontally arranged at one side above the side-swinging vehicle-lifting mechanism 1, a bottom plate 11 is installed on the inner side wall of one side, close to the hydraulic cylinder 4, of the side-swinging vehicle-lifting mechanism 1, a notch one 12 is formed in the bottom plate 11, a connecting ring one 6 is installed at the bottom end of the hydraulic cylinder 4, a pin shaft 18 is installed in the middle of the notch one 12, the pin shaft 18 penetrates through the connecting ring one 6, the hydraulic cylinder 4 is hinged to the connecting ring one 6, the hydraulic cylinder 4 can stably keep and flexibly swing, and the position stability and the swinging flexibility of the hydraulic cylinder 4 are ensured.

Install baffle 3 in the top of side pendulum loading mechanism 1, baffle 3 is "U" type structure of inversion, is located the top of go-between 6 with baffle 3, and the top and the both sides of go-between 6 and pneumatic cylinder 4 can be protected to baffle 3, avoid when the excavator operation, and go-between 6 and pneumatic cylinder 4 receive to collide with and cause the damage, have guaranteed the safety of go-between 6 and pneumatic cylinder 4.

One end of the side-swing boarding mechanism 1 close to the hydraulic cylinder 4 is provided with a square hole I8, the square hole I8 is of a square structure, the hydraulic cylinder 4 is located inside the square hole I8, the hydraulic cylinder 4 can provide enough space for the hydraulic cylinder 4 when swinging left and right, the hydraulic cylinder 4 can swing, the feasibility of swinging of the hydraulic cylinder 4 is guaranteed, one side of the side-swing boarding mechanism 1 close to the hydraulic cylinder 4 is provided with a square hole II 9, the square hole II 9 is of a square structure, one end of the hydraulic cylinder 4 far away from the bottom plate 11 is provided with a fixed column 10, the hydraulic cylinder 4 can swing left and right, the fixed column 10 can be pulled inside the square hole II 9, the swing amplitude of the hydraulic cylinder 4 is limited, the phenomenon that the swing amplitude of the hydraulic cylinder 4 is too large, the excavator is prevented from being controlled to turn on the side, and the safety of the excavator during operation is guaranteed.

The hydraulic shaft 5 penetrates through one end of the hydraulic cylinder 4, the connecting ring II 7 is installed at the end, far away from the hydraulic cylinder 4, of the hydraulic shaft 5, the two connecting plates 13 are installed on one side, close to the hydraulic shaft 5, of the side swinging head 2, the connecting mechanism is provided for the hydraulic shaft 5 and the side swinging head 2, the hydraulic shaft 5 is connected with the side swinging head 2 through the connecting ring II 7 and the connecting plates 13, and the feasibility that the hydraulic shaft 5 is connected with the side swinging head 2 is guaranteed.

The one end of keeping away from hydraulic shaft 5 at two connecting plates 13 has all been seted up notch three 15, go-between two 7 are located between two connecting plates 13, it has bolt two 17 to run through in the middle part of go-between two 7 and two notch three 15, go-between two 7 and two notch three 15 are articulated, install nut two 1701 in the bottom of bolt two 17, can move about between messenger's connecting plate 13 and the go-between two 7, and then make the side pendulum head 2 can be nimble control deflect, the flexibility of controlling the deflection of assurance side pendulum head 2.

The cross section of the side swinging head 2 is of a transverse U-shaped structure, a notch II 14 is formed in one side, close to the side swinging boarding mechanism 1, of the side swinging boarding head 2, a bolt I16 penetrates through the middle portions of the side swinging boarding mechanism 1 and the notch II 14, the side swinging head 2 is hinged to the side swinging boarding mechanism 1, a nut I1601 is installed at the bottom of the bolt I16, the side swinging head 2 and the side swinging boarding mechanism 1 can flexibly move, the side swinging head 2 can swing left and right, and the flexibility of the side swinging head 2 in left and right swinging is guaranteed.

When the excavator is used, the hydraulic cylinder 4 controls the hydraulic shaft 5 to stretch out and draw back, the side swing head 2 is driven to swing left and right through the connecting plate 13, the side swing head 2 which swings left and right drives the push shovel mechanism to swing left and right, the angle of the push shovel mechanism is adjusted left and right, and bulldozing work is carried out.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a big arm side pendulum mechanism for small-size excavator, includes that the side pendulum goes up car mechanism (1), side pendulum head (2) and pneumatic cylinder (4), its characterized in that: the side pendulum head (2) is located the one end of the side pendulum mechanism of getting on the bus (1), pneumatic cylinder (4) level sets up the one side in the side pendulum mechanism of getting on the bus (1) top, the inside wall that side pendulum mechanism of getting on the bus (1) is close to pneumatic cylinder (4) one side is installed bottom plate (11), notch one (12) have been seted up on bottom plate (11), go-between (6) are installed to the bottom of pneumatic cylinder (4), and notch one (12) mid-mounting has round pin axle (18), round pin axle (18) run through go-between (6).

2. The boom swing mechanism for a small excavator according to claim 1, wherein: a baffle (3) is installed above the side-swing boarding mechanism (1), the baffle (3) is of an inverted U-shaped structure, and the baffle (3) is located above the connecting ring I (6).

3. The boom swing mechanism for a small excavator according to claim 2, wherein: one end of the side swing boarding mechanism (1) close to the hydraulic cylinder (4) is provided with a first square hole (8), the first square hole (8) is of a square structure, the hydraulic cylinder (4) is located inside the first square hole (8), one side of the side swing boarding mechanism (1) close to the hydraulic cylinder (4) is provided with a second square hole (9), the second square hole (9) is of a square structure, and one end, far away from the bottom plate (11), of the hydraulic cylinder (4) is provided with a fixing column (10).

4. The boom swing mechanism for a small excavator according to claim 3, wherein: one end of the hydraulic cylinder (4) penetrates through the hydraulic shaft (5), one end, far away from the hydraulic cylinder (4), of the hydraulic shaft (5) is provided with a second connecting ring (7), and one side, close to the hydraulic shaft (5), of the side swinging head (2) is provided with two connecting plates (13).

5. The boom swing mechanism for a small excavator according to claim 4, wherein: notch three (15) have all been seted up to the one end that hydraulic shaft (5) were kept away from in two connecting plates (13), and go-between two (7) are located between two connecting plates (13), and the middle part of go-between two (7) and two notch three (15) is run through and is had bolt two (17), and go-between two (7) are articulated with two notch three (15), and nut two (1701) are installed to the bottom of bolt two (17).

6. The boom swing mechanism for a small excavator according to claim 1, wherein: the cross-section of side pendulum head (2) is horizontal "U" type structure, and notch two (14) have been seted up to one side that side pendulum head (2) are close to side pendulum mechanism of getting on the bus (1), and the middle part of side pendulum mechanism of getting on the bus (1) and notch two (14) runs through bolt one (16), and side pendulum head (2) and side pendulum mechanism of getting on the bus (1) are articulated, and nut one (1601) are installed to the bottom of bolt one (16).