CN202850070U

CN202850070U - Parallel eight-connection-rod mechanism for loading machine

Info

Publication number: CN202850070U
Application number: CN 201220494823
Authority: CN
Inventors: 王晓龙; 杨辉; 汪贞伟; 王永
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2012-09-25
Filing date: 2012-09-25
Publication date: 2013-04-03
Anticipated expiration: 2022-09-25

Abstract

The utility model discloses a parallel eight-connection-rod mechanism for a loading machine and belongs to the field of engineering machinery. The parallel eight-connection-rod mechanism for the loading machine overcomes the defects that in the prior art, in the process of material lifting, a traditional connection rod mechanism can not meet requirement of translational motion performance of materials, and parts in a structure easily generate interference. The parallel eight-connection-rod mechanism for the loading machine comprises a vehicle frame, two groups of parallel eight-connection-rod mechanisms which are symmetrically distributed are arranged on the vehicle frame, and the eight-connection-rod mechanisms comprise movable arms, rear draw rods, rear swinging arms, front draw rods, front swinging arms, machine tools, rotating bucket cylinders and movable arm cylinders. The rear draw rods are arranged above the movable arms. The parallel eight-connection-rod mechanism for the loading machine is mainly applied to a loading machine of the engineering machinery.

Description

The parallel eight-bar linkage of loader

Technical field

The utility model belongs to a kind of engineering machinery equipment of worker, specifically, relates in particular to the parallel eight-bar linkage of a kind of loader.

Background technology

Loader is the important plant equipment in the engineering machinery construction, be mainly used in to bulk material shovel, dress, the operation such as transport, dig, along with the diversity of industrial and mineral, some operating mode is no longer applicable to the plain connecting rod mechanism of loader.The working condition requirement that for example has keeps the translation of material in the moved arm lifting process, conventional linkage mechanism can't reach the purpose of this operation, and traditional eight-bar linkage adopts back stay to place swing arm rectangular structure form, arranges to have limitation, produces easily and interferes.

Summary of the invention

The utility model purpose provides the parallel eight-bar linkage of a kind of loader, can't satisfy in the material lifting process between the requirement of material translation and each parts of its structure and produces easily the defective of interfering to overcome conventional linkage mechanism in the prior art.

The utility model is achieved through the following technical solutions: the parallel eight-bar linkage of a kind of loader, comprise vehicle frame, described vehicle frame is provided with two groups of symmetrical parallel eight-bar linkages, described parallel eight-bar linkage comprises swing arm, back stay, rear arm, front tension bar, front arm, facility, rotating bucket cylinder and swing arm cylinder, described swing arm one end is hinged on the vehicle frame, the other end is hinged on the bottom of facility, the front and rear hinged front arm of difference of swing arm and an end of rear arm, the described front arm other end is hinged on the front tension bar stage casing, the other end of described rear arm is hinged on the rotary ink tank, the described rotating bucket cylinder other end is hinged on front tension bar one end, the other end of the upper articulation front tension bar of facility, described back stay is positioned at the top of swing arm, the one end is hinged on the vehicle frame, the other end is hinged on the stage casing of rear arm, and described boom cylinder one end is hinged on the vehicle frame, and the other end is hinged on the stage casing of swing arm.

Described swing arm front portion preferably is fixed with limited block.

Preferably be provided with fast replacing device on the described facility.

Preferably be provided with the reinforcement effect crossbeam between the described swing arm, crossbeam is provided be used to the holder of fixing the 3rd hydraulic steel pipe.

Compared with prior art, the beneficial effects of the utility model are:

(1) the utility model adopts parallel eight connecting rods, effectively embodies the translation of facility in the swing arm lifting process;

(2) and adopt back stay to be placed in swing arm top, solved the traditional mechanism back stay and placed the swing arm below to produce easily the limitation of interfering;

(3) discharging is received the spacing employing front tension bar of bucket and is contacted spacingly with swing arm, and the spacing employing front arm of discharging and swing arm both sides welded limiting piece are spacing.

Description of drawings

Fig. 1 is front view of the present utility model;

Fig. 2 is top view of the present utility model;

Fig. 3 is that the utility model is received the use state diagram when struggling against;

Use state diagram when Fig. 4 is the utility model discharging;

Fig. 5 is the utility model perspective view.

In the drawings, 1, vehicle frame; 2, back stay; 3, rear arm; 4, swing arm; 5, rotating bucket cylinder; 6, facility; 7, fast replacing device; 8, front tension bar; 9, front arm; 10, swing arm cylinder; 11, limited block; 12, crossbeam.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

Such as Fig. 1, Fig. 2, shown in Figure 5, the parallel eight-bar linkage of a kind of loader, comprise vehicle frame 1, described vehicle frame 1 is provided with two groups of symmetrical eight-bar linkages, described eight-bar linkage comprises back stay 2, rear arm 3, swing arm 4, rotating bucket cylinder 5, facility 6, front tension bar 8, front arm 9 and swing arm cylinder 10, described swing arm 4 one ends are hinged on the vehicle frame 1, the other end is hinged on the bottom of facility 6, the front and rear hinged front arm 9 of difference of swing arm 4 and an end of rear arm 3, described front arm 9 other ends are hinged on front tension bar 8 stage casings, the other end of described rear arm 3 is hinged on the rotating bucket cylinder 5, described rotating bucket cylinder 5 other ends are hinged on an end of front tension bar 8, the other end of the upper articulation front tension bar 8 of facility 6, described back stay 2 is positioned at the top of swing arm 4, and the one end is hinged on the vehicle frame 1, and the other end is hinged on the stage casing of rear arm 3, described swing arm cylinder 10 1 ends are hinged on the vehicle frame 1, and the other end is hinged on the stage casing of swing arm 4.Basis is novel to realize the motion of mechanism according to the variation of rotating bucket cylinder 5 and swing arm cylinder 10 strokes, and keeps good translation performance.

Be welded with crossbeam 12 between the two swing arm plates, with the intensity of increase swing arm 4, and above crossbeam 12, be welded with holder, be used for fixing the 3rd hydraulic steel pipe; The linkage front end is installed and is met international standard fast replacing device 7, can connect the variety classes facility, is applicable to various complex working conditions.

As shown in Figure 3, Figure 4, the spacing employing front tension bar 8 of the utility model receipts bucket contacts spacing with swing arm 4, and the spacing employing front arm 9 of discharging is spacing with swing arm 4 both sides welded limiting pieces 11.

The utility model can form a complete production network according to Loader type when making; During use, determine the concrete size of each parts and the coordinate of each pin joint according to used Loader type, guarantee to satisfy the requirement of user's lifting translation; In transportation, by flexible drive the utility model motion of swing arm cylinder 10 and rotating bucket cylinder 5, thus the work overall process of the shovel dress of realization loader, transportation, discharging.

Claims

1. parallel eight-bar linkage of loader, comprise vehicle frame (1), described vehicle frame (1) is provided with two groups of symmetrical parallel eight-bar linkages, described parallel eight-bar linkage comprises back stay (2), rear arm (3), swing arm (4), rotating bucket cylinder (5), facility (6), front tension bar (8), front arm (9) and swing arm cylinder (10), it is characterized in that: described swing arm (4) one ends are hinged on the vehicle frame (1), the other end is hinged on the bottom of facility (6), the front and rear difference hinged front arm (9) of swing arm (4) and an end of rear arm (3), described front arm (9) other end is hinged on front tension bar (8) stage casing, the other end of described rear arm (3) is hinged on the rotating bucket cylinder (5), described rotating bucket cylinder (5) other end is hinged on an end of front tension bar (8), the other end of the upper articulation front tension bar (8) of facility (6), described back stay (2) is positioned at the top of swing arm (4), the one end is hinged on the vehicle frame (1), the other end is hinged on the stage casing of rear arm (3), described swing arm cylinder (10) one ends are hinged on the vehicle frame (1), and the other end is hinged on the stage casing of swing arm (4).

2. the parallel eight-bar linkage of loader according to claim 1, it is characterized in that: described swing arm (4) front portion is fixed with limited block (11).

3. the parallel eight-bar linkage of loader according to claim 1 and 2 is characterized in that: be connected with fast replacing device (7) between described swing arm (4), front tension bar (8) and the facility (6).

4. the parallel eight-bar linkage of loader according to claim 1 and 2 is characterized in that: be provided with crossbeam (12) between the described swing arm (4).