Hydraulic auxiliary supporting leg

Abstract

The utility model discloses a hydraulic auxiliary supporting leg which comprises a connecting base, a supporting rod and a first hydraulic air cylinder, one end of the supporting rod is connected to one end of the connecting base in a rotating mode, the first hydraulic air cylinder drives the supporting rod to rotate, and a second hydraulic air cylinder is arranged in the supporting rod. A telescopic frame is arranged at the output end of the second hydraulic air cylinder, and the telescopic frame is inserted into the end, away from the connecting base, of the supporting rod in a sliding mode. The auxiliary supporting leg has the effect that the stability of the auxiliary supporting leg to the engineering machinery is kept unchanged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering machinery, in particular to a hydraulic auxiliary outrigger. BACKGROUND

[0002] Engineering machinery includes excavating machinery, hoisting machinery and pile driving machinery, etc. In order to increase the stability of the engineering machinery, four auxiliary outriggers are installed on both sides of the engineering machinery (such as rotary excavators, crawler cranes, etc.) during fixed-point work. The engineering machinery on the market is provided with a hydraulic auxiliary outrigger, which is driven to rotate under the action of a first hydraulic cylinder, so that the lower end of the hydraulic auxiliary outrigger is in contact with the ground, thereby improving the stability of the engineering machinery. However, when the engineering machinery moves in a road condition with many obstacles, the downward rotation of the hydraulic auxiliary outrigger will contact the obstacles, causing the hydraulic auxiliary outrigger to shake and reducing the stability of the engineering machinery. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at the defects and deficiencies of the prior art, and provides a hydraulic auxiliary outrigger.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The utility model discloses a connecting seat, a supporting rod and a first hydraulic cylinder, one end of the supporting rod is rotatably connected to one end of the connecting seat, the first hydraulic cylinder drives the supporting rod to rotate, a second hydraulic cylinder is arranged in the supporting rod, an output end of the second hydraulic cylinder is provided with a telescopic frame, and the telescopic frame is inserted and slid in one end of the supporting rod away from the connecting seat.

[0006] Preferably, the connecting seat comprises a fixed seat and a rotating seat, one end of the rotating seat is rotatably connected to the fixed seat, one end of the supporting rod is rotatably connected to the outer end of the rotating seat, one end of the first hydraulic cylinder is rotatably connected to the rotating seat, and the other end of the first hydraulic cylinder is rotatably connected to the side wall of the supporting rod.

[0007] Preferably, a locking piece is arranged between the rotating seat and the fixed seat, and the locking piece can fix the rotating seat.

[0008] Preferably, the locking piece comprises a penetrating rod and a driving block, one end of the penetrating rod penetrates the rotating seat and the fixed seat in sequence, the driving block is arranged at one end of the penetrating rod, and the driving block abuts against the side wall of the rotating seat.

[0009] Preferably, the side wall of the rotating base is provided with a first fixing hole, the side wall of the fixing base is provided with two second fixing holes, the two second fixing holes are arranged at right angles along the rotating direction of the rotating shaft of the rotating base, and the first fixing hole corresponds to one of the second fixing holes.

[0010] Preferably, the lower end of the telescopic support is rotatably connected with a balance base.

[0011] Preferably, the driving block is rotatably connected to the upper end of the penetrating rod.

[0012] To sum up, the present application has at least one of the following beneficial technical effects:

[0013] 1. When the engineering machinery moves to a specified position, the first hydraulic cylinder rotates the support rod, when the lower end of the support rod contacts with the obstacle on the road surface, the second hydraulic cylinder is started, the telescopic support is extended or retracted in the support rod, so that the telescopic support at the lower end of the support rod avoids the obstacle and contacts with the ground, when the telescopic support is extended in the support rod, the lower end of the telescopic support is located on the side away from the engineering machinery, when the telescopic support is retracted in the support rod, the lower end of the telescopic support is located on the side close to the engineering machinery, so that the auxiliary support leg does not shake, and the stability of the auxiliary support leg to the engineering machinery remains unchanged.

[0014] 2. When the auxiliary support leg needs to be stored, the first hydraulic cylinder is started to pull the support rod, so that the support rod rotates on the rotating base, the lower end of the support rod is separated from the ground, then the rotating base is rotated on the fixing base, the support rod is close to the engineering machinery, so that the support rod does not collide with the obstacle on the path during the movement of the engineering machinery, the passability of the engineering machinery is increased, and the service life of the hydraulic auxiliary support leg is improved.

[0015] 3. When the support rod is in the working position, one end of the penetrating rod is sequentially inserted into the first fixing hole and the second fixing hole, so that the rotating base and the fixing base are fixed, when the support rod is in the storage position, one end of the penetrating rod is sequentially inserted into the first fixing hole and the other second fixing hole, so that the support rod is attached to the engineering machinery, and the stability of the support rod is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the hydraulic auxiliary support leg of the utility model;

[0017] Figure 2 is an exploded schematic view of the hydraulic auxiliary support leg of the utility model;

[0018] Figure 3 is an exploded schematic view of the hydraulic auxiliary support leg of the utility model from another angle.

[0019] In the figure: 1, connecting seat; 2, support rod; 3, first hydraulic cylinder; 4, rotating seat; 5, fixed seat; 6, locking piece; 7, through connecting rod; 8, driving block; 9, first fixed hole; 10, second fixed hole; 11, telescopic frame; 12, second hydraulic cylinder; 15, balance seat. DETAILED DESCRIPTION

[0020] The utility model will be further described below with reference to the drawings.

[0021] The embodiment of the application discloses a hydraulic auxiliary outrigger.

[0022] Referring to Figure 1 and Figure 3 , including connecting seat 1, support rod 2 and first hydraulic cylinder 3, connecting seat 1 includes rotating seat 4 and fixed seat 5, one end of fixed seat 5 is fixed to the side of the engineering machinery through a bolt, the vertical section of rotating seat 4 is in a lying down "N" shape, the open end of rotating seat 4 is sleeved on the outer end of fixed seat 5, rotating seat 4 is rotationally connected on fixed seat 5, one end of support rod 2 is rotationally connected on the outer end of rotating seat 4, one end of first hydraulic cylinder 3 is rotationally connected on the upper side of the outer end of rotating seat 4, the other end of first hydraulic cylinder 3 is rotationally connected on the side wall of support rod 2. First hydraulic cylinder 3 is started, thereby pulling support rod 2, so that support rod 2 rotates on rotating seat 4, the lower end of support rod 2 is separated from the ground, then rotating seat 4 is rotated on fixed seat 5, let support rod 2 close to the engineering machinery, so that the engineering machinery in the process of moving, support rod 2 will not collide with the obstacles on the path.

[0023] Locking piece 6 is arranged between rotating seat 4 and fixed seat 5, locking piece 6 includes through connecting rod 7 and driving block 8, the upper side wall of rotating seat 4 is provided with first fixed hole 9, the upper side wall of fixed seat 5 is provided with two second fixed holes 10 along the selected direction of the rotating shaft, the rotating round corners of the two second fixed holes 10 are 90 °, the two second fixed holes 10 can correspond to first fixed hole 9 respectively, one end of through connecting rod 7 is sequentially threaded in first fixed hole 9 and second fixed hole 10, driving block 8 is rotationally connected on the upper end of through connecting rod 7, and driving block 8 is abutted on the upper side wall of rotating seat 4.When support rod 2 is in the working position, one end of through connecting rod 7 is sequentially threaded in first fixed hole 9 and second fixed hole 10, thereby fixing rotating seat 4 and fixed seat 5, when support rod 2 is in the storage position, one end of through connecting rod 7 is sequentially threaded in first fixed hole 9 and another second fixed hole 10, so that support rod 2 is attached to the engineering machinery.

[0024] Referring to Figure 2The lower end of the supporting rod 2 is inserted and slid with the telescopic frame 11, the second hydraulic cylinder 12 is placed in the supporting rod 2, one end of the second hydraulic cylinder 12 is fixed to the side wall of the inner end of the supporting rod 2, and the output end of the second hydraulic cylinder 12 is fixed to the bottom of the outer end of the telescopic frame 11. When the lower end of the supporting rod 2 contacts with the obstacle on the road surface during the rotation of the supporting rod 2 by the first hydraulic cylinder 3, the second hydraulic cylinder 12 is started to make the telescopic frame 11 extend or retract in the supporting rod 2, so that the telescopic frame 11 at the lower end of the supporting rod 2 avoids the obstacle and contacts with the ground. When the telescopic frame 11 extends in the supporting rod 2, the lower end of the telescopic frame 11 is located at the side of the obstacle away from the engineering machinery, and when the telescopic frame 11 retracts in the supporting rod 2, the lower end of the telescopic frame 11 is located at the side of the obstacle close to the engineering machinery.

[0025] The lower side of the telescopic frame 11 is rotationally connected with the balance seat 15, the vertical section of the balance seat 15 is in the shape of "N", and the lower end surface of the balance seat 15 can contact with the ground.

[0026] The above is only the preferred embodiment of the present application, so equivalent changes or modifications made according to the structure, features and principles of the present application patent application range are included in the present application patent application range.

Claims

1. A hydraulically assisted outrigger, comprising a connecting seat (1), a support rod (2), and a first hydraulic cylinder (3), wherein one end of the support rod (2) is rotatably connected to one end of the connecting seat (1), and the first hydraulic cylinder (3) drives the support rod (2) to rotate, characterized in that: A second hydraulic cylinder (12) is provided inside the support rod (2), and a telescopic frame (11) is provided at the output end of the second hydraulic cylinder (12). The telescopic frame (11) is inserted and slidably moved in the support rod (2) at the end away from the connecting seat (1).

2. The hydraulically assisted outrigger according to claim 1, characterized in that, The connecting seat (1) includes a fixed seat (5) and a rotating seat (4). One end of the rotating seat (4) is rotatably connected to the fixed seat (5). One end of the support rod (2) is rotatably connected to the outer end of the rotating seat (4). One end of the first hydraulic cylinder (3) is rotatably connected to the rotating seat (4). The other end of the first hydraulic cylinder (3) is rotatably connected to the side wall of the support rod (2).

3. A hydraulically assisted outrigger according to claim 2, characterized in that, A locking element (6) is provided between the rotating seat (4) and the fixed seat (5), and the locking element (6) can fix the rotating seat (4).

4. A hydraulically assisted outrigger according to claim 3, characterized in that, The locking member (6) includes a connecting rod (7) and a driving block (8). One end of the connecting rod (7) passes through the rotating seat (4) and the fixed seat (5) in sequence. The driving block (8) is disposed at one end of the connecting rod (7) and abuts against the side wall of the rotating seat (4).

5. A hydraulically assisted outrigger according to claim 2, characterized in that, The rotating seat (4) has a first fixing hole (9) on its side wall, and the fixing seat (5) has two second fixing holes (10) on its side wall. The two second fixing holes (10) are set at right angles to the rotation direction of the rotating seat (4). The first fixing hole (9) corresponds to one of the second fixing holes (10).

6. A hydraulically assisted outrigger according to claim 1, characterized in that, The lower end of the telescopic frame (11) is rotatably connected to a balance seat (15).

7. A hydraulically assisted outrigger according to claim 4, characterized in that... The drive block (8) is rotatably connected to the upper end of the connecting rod (7).

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