Grabbing rocker arm of excavator

Abstract

The utility model discloses a grab rocker arm of an excavator, which relates to the technical field of excavators and comprises a lifting arm, a lifting seat arranged at one end of the lifting arm, a rocker arm arranged below the lifting seat, a swing plate arranged at the bottom of the rocker arm, a grab plate arranged below the swing plate, and a rotating shaft arranged at the joint of the grab plate and the bottom of the rocker arm. The grabbing plate is located on the outer side of the rocker arm, the rotating shaft penetrates through the bottom of the rocker arm, the swing plate also penetrates through the bottom of the rocker arm, one end, penetrating through the rocker arm, of the swing plate is located above the rotating shaft, connecting seats are arranged on two sides of the rocker arm inside the grabbing plate, and the rotating shaft penetrates through the two connecting seats. According to the grab rocker arm of the excavator, the bucket is matched with the grab plate, so that the rocker arm of the excavator can directly grab, and the operation difficulty of the excavator is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, in particular to a grabbing swing arm of an excavator. Background Art

[0002] An excavator is an indispensable construction machinery in modern society. With the forward development of society, people's technical requirements for excavators are getting higher and higher, especially the digging force of the bucket of the excavator is required to be larger and larger.

[0003] The swing arm of the excavator is replaced in different working environments to adapt to different working environments. However, when the grabbing function needs to be realized, the operation of the existing excavator is difficult.

[0004] Therefore, a grabbing swing arm of an excavator is provided, which is convenient for operating the excavator when the grabbing function of the excavator is realized, thereby accelerating the progress of the project. Summary of the Utility Model

[0005] Therefore, the purpose of the utility model is to provide a grabbing swing arm of an excavator to solve the problems put forward in the above background art.

[0006] To solve the above technical problems, the utility model provides the following technical solutions: A grabbing swing arm of an excavator, which includes a lifting arm. One end of the lifting arm is provided with a lifting seat. A swing arm is arranged below the lifting seat. A swing plate is arranged at the bottom of the swing arm. A grabbing plate is arranged below the swing plate. A rotating shaft is arranged at the connection between the grabbing plate and the bottom of the swing arm. The grabbing plate is located outside the swing arm. The rotating shaft penetrates through the bottom of the swing arm. The swing plate also penetrates through the bottom of the swing arm. One end of the swing plate penetrating through the swing arm is located above the rotating shaft. Connection seats are arranged inside the grabbing plate on both sides of the swing arm. The rotating shaft penetrates through the two connection seats.

[0007] As a preferred scheme of the grabbing swing arm of the excavator described in the utility model, wherein: One end of the top surface of the lifting arm is provided with a lifting hydraulic platform. A pair of connecting plates are arranged at the top of the lifting seat. A lifting hydraulic seat is arranged inside the connecting plates. Both sides of the lifting hydraulic seat are hinged to the connecting plates. A lifting hydraulic cylinder is arranged on one side of the lifting hydraulic platform facing the lifting hydraulic seat. The other end of the lifting hydraulic cylinder is connected to the lifting hydraulic seat.

[0008] As a preferred scheme of the grabbing swing arm of the excavator described in the utility model, wherein: An auxiliary lifting hydraulic cylinder is arranged above the lifting hydraulic cylinder on the lifting hydraulic platform. An auxiliary seat is arranged at the top of the lifting hydraulic seat. The other end of the auxiliary lifting hydraulic cylinder is connected to the auxiliary seat.

[0009] As a preferred scheme of the grabbing swing arm of the excavator described in the utility model, wherein: The other end of the swing plate is provided with a lifting plate. The lifting plate is located on the side of the swing arm opposite to the grabbing plate.

[0010] As a preferred embodiment of the grab arm of an excavator according to the present utility model, wherein: a swing hydraulic platform is provided at the top of the grab arm on the opposite side of the grab plate, and a lifting hydraulic seat is provided between one end of the swing hydraulic platform and the swing plate. Both ends of the lifting hydraulic seat are hinged to the swing hydraulic platform and the swing plate. A lifting and lowering hydraulic cylinder is provided at the bottom of the swing hydraulic platform, and the other end of the lifting and lowering hydraulic cylinder is fixed to the top surface of the lifting hydraulic seat.

[0011] As a preferred embodiment of the grab arm of an excavator according to the present utility model, wherein: a bucket is provided on the bottom surface of the lifting plate, a rotating rod is provided between the bucket and the bottom of the lifting plate, the rotating rod is hinged to the lifting plate and the bucket, the bottom of the connecting seat is connected to the top of the bucket, and a separating bearing is provided between the connecting seat and the rotating shaft.

[0012] As a preferred embodiment of the grab arm of an excavator according to the present utility model, wherein: a first deflection shaft is provided inside the grab plate, the first deflection shaft penetrates the grab plate, a first deflection seat is provided at the center of the first deflection shaft, a deflection hydraulic cylinder is provided above the first deflection seat, and a deflection block is provided at the center of the other end of the deflection hydraulic cylinder.

[0013] As a preferred embodiment of the grab arm of an excavator according to the present utility model, wherein: a pair of second deflection seats are provided on the opposite surface of the grab arm to the lifting plate, the deflection block is located between the second deflection seats, a second deflection shaft is provided in the second deflection seats, and the second deflection shaft penetrates the second deflection seats and the deflection block.

[0014] As a preferred embodiment of the grab arm of an excavator according to the present utility model, wherein: a turntable is provided between the lifting seat and the grab arm.

[0015] Advantages of the present utility model:

[0016] 1. The present utility model provides a grab arm of an excavator. By setting the cooperation of the bucket and the grab plate, the grab arm of the excavator can directly perform grabbing, thereby reducing the operation difficulty of the excavator.

[0017] 2. The present utility model provides a grab arm of an excavator. By setting the turntable, it is convenient to adjust the items grabbed by the excavator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0019] Figure 1Schematic diagram of the overall structure of a grab boom of an excavator according to the present utility model;

[0020] Figure 2 Top view of a grab boom of an excavator according to the present utility model;

[0021] Figure 3 Rear view of a grab boom of an excavator according to the present utility model.

[0022] Explanation of reference numerals:

[0023] 1. Lifting arm; 11. Lifting seat; 12. Connecting plate; 13. Lifting hydraulic seat; 14. Auxiliary seat; 15. Lifting hydraulic platform; 16. Lifting hydraulic; 17. Auxiliary lifting hydraulic; 2. Turntable; 3. Boom; 31. Swing hydraulic platform; 32. Upgrade and lower hydraulic; 33. Lifting plate; 34. Swing plate; 35. Bucket; 36. Rotating rod; 37. Lifting hydraulic seat; 38. Connecting seat; 4. Grabbing plate; 41. First deflection shaft; 42. First deflection seat; 43. Deflection hydraulic; 44. Second deflection seat; 45. Deflection block; 46. Second deflection shaft; 47. Rotating shaft; 5. Separation bearing. Detailed implementation manners

[0024] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given in conjunction with the accompanying drawings of the specification.

[0025] Referring to Figures 1-3 , a grab boom of an excavator provided by the present utility model. This grab boom of an excavator includes a lifting arm 1. A lifting seat 11 is provided at one end of the lifting arm 1. A boom 3 is provided below the lifting seat 11. A swing plate 34 is provided at the bottom of the boom 3. A grabbing plate 4 is provided below the swing plate 34. A rotating shaft 47 is provided at the connection between the grabbing plate 4 and the bottom of the boom 3. The grabbing plate 4 is located outside the boom 3. The rotating shaft 47 penetrates the bottom of the boom 3. The swing plate 34 also penetrates the bottom of the boom 3. One end of the swing plate 34 penetrating the boom 3 is located above the rotating shaft 47. Connecting seats 38 are provided inside the grabbing plate 4 on both sides of the boom 3. The rotating shaft 47 penetrates the two connecting seats 38.

[0026] Specifically, one end of the lifting arm 1 is provided with a lifting seat 11, and a rocker arm 3 is arranged below the lifting seat 11. The lifting arm 1 drives the lifting seat 11 to move, so that the rocker arm 3 moves upward synchronously with the lifting seat 11. A swing plate 34 is arranged at the bottom of the rocker arm 3, and a gripping plate 4 is arranged below the swing plate 34. A rotating shaft 47 is arranged at the connection between the gripping plate 4 and the bottom of the rocker arm 3. The gripping plate 4 is located outside the rocker arm 3, and the rotating shaft 47 penetrates through the bottom of the rocker arm 3, driving the gripping plate 4 to rotate around the rocker arm 3 through the rotating shaft 47. The swing plate 34 also penetrates through the bottom of the rocker arm 3. One end of the swing plate 34 penetrating through the rocker arm 3 is located above the rotating shaft 47, enabling the gripping plate 4 and the swing plate 34 to rotate independently. Connection seats 38 are arranged inside the gripping plate 4 on both sides of the rocker arm 3, and the rotating shaft 47 penetrates through the two connection seats 38, connecting the rocker arm 3 and the connection seats 38 through the rotating shaft 47.

[0027] One end of the top surface of the lifting arm 1 is provided with a lifting hydraulic platform 15, and a pair of connecting plates 12 are arranged on the top of the lifting seat 11. A lifting hydraulic seat 13 is arranged inside the connecting plates 12. Both sides of the lifting hydraulic seat 13 are hinged to the connecting plates 12. One side of the lifting hydraulic platform 15 facing the lifting hydraulic seat 13 is provided with a lifting hydraulic cylinder 16, and the other end of the lifting hydraulic cylinder 16 is connected to the lifting hydraulic seat 13.

[0028] Specifically, through the movement of the lifting hydraulic cylinder 16, the lifting seat 11 is driven to deflect up and down around the lifting hydraulic seat 13, and then the rocker arm 3 is driven to move up and down.

[0029] An auxiliary lifting hydraulic cylinder 17 is arranged above the lifting hydraulic cylinder 16 on the lifting hydraulic platform 15, and an auxiliary seat 14 is arranged on the top of the lifting hydraulic seat 13. The other end of the auxiliary lifting hydraulic cylinder 17 is connected to the auxiliary seat 14.

[0030] Specifically, through the synchronous movement of the auxiliary lifting hydraulic cylinder 17 and the lifting hydraulic cylinder 16, the lifting hydraulic cylinder 16 and the auxiliary lifting hydraulic cylinder 17 synchronously drive the rocker arm 3 to move upward, thereby increasing the load of the rocker arm 3.

[0031] The other end of the swing plate 34 is provided with a lifting plate 33, and the lifting plate 33 is located on the side of the rocker arm 3 opposite to the gripping plate 4.

[0032] Specifically, through the cooperation between the lifting plate 33 and the swing plate 34, an intersection is formed with the movement path of the gripping plate 4.

[0033] A swing hydraulic platform 31 is arranged at the top of the rocker arm 3 on the side opposite to the gripping plate 4. An elevating hydraulic seat 37 is arranged between the end of the swing hydraulic platform 31 connected to the swing plate 34. Both ends of the elevating hydraulic seat 37 are hinged to the swing hydraulic platform 31 and the swing plate 34. A lifting and lowering hydraulic cylinder 32 is arranged at the bottom of the swing hydraulic platform 31, and the other end of the lifting and lowering hydraulic cylinder 32 is fixed to the top surface of the elevating hydraulic seat 37.

[0034] Specifically, by hinging the lifting hydraulic seat 37 with the swing hydraulic table 31 and the swing plate 34, the lifting plate 33 and the swing plate 34 can swing around the lifting hydraulic seat 37. Through the operation of the lifting and lowering hydraulic cylinder 32, the lifting hydraulic seat 37 is driven to move, and then the lifting plate 33 and the swing plate 34 are driven to move.

[0035] A bucket 35 is provided on the bottom surface of the lifting plate 33. A rotating rod 36 is provided between the bucket 35 and the bottom of the lifting plate 33. The rotating rod 36 is hinged with the lifting plate 33 and the bucket 35. The bottom of the connecting seat 38 is connected to the top of the bucket 35. A separating bearing 5 is provided between the connecting seat 38 and the rotating shaft 47.

[0036] Specifically, the movement between the lifting plate 33 and the swing plate 34 cooperates with the rotating shaft 47 to drive the bucket 35 to move. Through the separating bearing 5, the grab plate 4 and the bucket 35 move independently to complete the grabbing work.

[0037] A first deflecting shaft 41 is provided inside the grab plate 4. The first deflecting shaft 41 penetrates through the grab plate 4. A first deflecting seat 42 is provided at the center of the first deflecting shaft 41. A deflecting hydraulic cylinder 43 is provided above the first deflecting seat 42. A deflecting block 45 is provided at the center of the other end of the deflecting hydraulic cylinder 43.

[0038] Specifically, through the movement of the deflecting hydraulic cylinder 43, the first deflecting seat 42 is driven to move synchronously, and then the first deflecting shaft 41 is driven to move, realizing the movement of the grab plate 4.

[0039] A pair of second deflecting seats 44 are provided on the opposite side of the lifting plate 33 of the rocker arm 3. The deflecting block 45 is located between the second deflecting seats 44. A second deflecting shaft 46 is provided in the second deflecting seats 44. The second deflecting shaft 46 penetrates through the second deflecting seats 44 and the deflecting block 45.

[0040] Specifically, the deflecting block 45 rotates between the second deflecting seats 44 through the second deflecting shaft 46, thereby assisting the deflecting hydraulic cylinder 43 to push the grab plate 4 to rotate around the rotating shaft 47.

[0041] A turntable 2 is provided between the lifting seat 11 and the rocker arm 3.

[0042] Specifically, the turntable 2 enables the rocker arm 3 and the lifting seat 11 to rotate relative to each other.

[0043] During use, control the operation of the excavator's driving and lifting hydraulic cylinder 16 and the auxiliary lifting hydraulic cylinder 17 to lift the swing arm 3. Then, control the operation of the lifting and lowering hydraulic cylinder 32 to drive the lifting plate 33 and the swing plate 34 to move in cooperation with the movement of the rotating shaft 47, thereby driving the bucket 35 to move. Next, drive the grasping plate 4 to swing by the deflection hydraulic cylinder 43, and cooperate with the movement of the bucket 35 to achieve the grasping function. Furthermore, drive the swing arm 3 to rotate by the turntable 2, thereby adjusting the grasped item, rather than controlling the overall rotation of the excavator, which reduces the operation difficulty of grasping.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An excavator grab rocker arm, comprising a lifting arm (1), characterized in that: A lifting seat (11) is provided at one end of the lifting arm (1), a rocking arm (3) is provided below the lifting seat (11), a swing plate (34) is provided at the bottom of the rocking arm (3), a grab plate (4) is provided below the swing plate (34), a rotating shaft (47) is provided at the connection between the grab plate (4) and the bottom of the rocking arm (3), the grab plate (4) is located outside the rocking arm (3), the rotating shaft (47) passes through the bottom of the rocking arm (3), the swing plate (34) also passes through the bottom of the rocking arm (3), one end of the swing plate (34) passing through the rocking arm (3) is located above the rotating shaft (47), and connecting seats (38) are provided inside the grab plate (4) on both sides of the rocking arm (3), and the rotating shaft (47) passes through the two connecting seats (38).

2. The excavator grab rocker arm according to claim 1, characterized in that: A lifting hydraulic platform (15) is provided at one end of the top surface of the lifting arm (1), a pair of connecting plates (12) are provided at the top of the lifting seat (11), a lifting hydraulic seat (13) is provided inside the connecting plate (12), both sides of the lifting hydraulic seat (13) are hinged to the connecting plate (12), a lifting hydraulic (16) is provided on the side of the lifting hydraulic platform (15) facing the lifting hydraulic seat (13), and the other end of the lifting hydraulic (16) is connected to the lifting hydraulic seat (13).

3. The excavator grab rocker arm according to claim 2, characterized in that: The lifting hydraulic platform (15) is provided with an auxiliary lifting hydraulic (17) above the lifting hydraulic (16); an auxiliary seat (14) is provided on the top of the lifting hydraulic seat (13); and the other end of the auxiliary lifting hydraulic (17) is connected to the auxiliary seat (14).

4. The excavator grab rocker arm according to claim 3, characterized in that: A lifting plate (33) is provided at the other end of the swing plate (34), and the lifting plate (33) is located on the side of the rocker arm (3) opposite to the grab plate (4).

5. The grab rocker arm for an excavator according to claim 4, characterized in that: The rocker arm (3) is provided with a swing hydraulic platform (31) at the top end on the side opposite to the grab plate (4); a lifting hydraulic seat (37) is provided between the swing hydraulic platform (31) and one end connected to the swing plate (34); both ends of the lifting hydraulic seat (37) are hinged to the swing hydraulic platform (31) and the swing plate (34); an upgrade and lowering hydraulic pressure (32) is provided at the bottom of the swing hydraulic platform (31); the other end of the upgrade and lowering hydraulic pressure (32) is fixed to the top surface of the lifting hydraulic seat (37).

6. The grab rocker arm for an excavator according to claim 5, characterized in that: A bucket (35) is provided on the bottom surface of the lifting plate (33), a rotating rod (36) is provided between the bucket (35) and the bottom of the lifting plate (33), the rotating rod (36) is hinged to the lifting plate (33) and the bucket (35), the bottom of the connecting seat (38) is connected to the top of the bucket (35), and a separation bearing (5) is provided between the connecting seat (38) and the rotating shaft (47).

7. The grab rocker arm for an excavator according to claim 6, characterized in that: A first deflection shaft (41) is arranged inside the grab plate (4), the first deflection shaft (41) passes through the grab plate (4), a first deflection seat (42) is arranged at the center of the first deflection shaft (41), a deflection hydraulic pressure (43) is arranged above the first deflection seat (42), and a deflection block (45) is arranged at the center of the other end of the deflection hydraulic pressure (43).

8. The grab rocker arm for an excavator according to claim 7, characterized in that: The rocker arm (3) is provided with a pair of second deflection seats (44) on opposite sides of the lifting plate (33); the deflection block (45) is located between the second deflection seats (44); a second deflection shaft (46) is provided in the second deflection seat (44); and the second deflection shaft (46) passes through the second deflection seat (44) and the deflection block (45).

9. The excavator grab rocker arm according to claim 8, characterized in that: A turntable (2) is provided between the lifting seat (11) and the rocker arm (3).

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