Articulated front frame and loader

Abstract

The utility model relates to a hinged type frame, in particular to a hinged type front frame and a loading machine. The hinged front frame comprises a left wing box, a right wing box, a steering hinge assembly with the left end and the right end welded to inner side plates of the left wing box and the right wing box correspondingly, and a steering oil cylinder support arranged in front of the steering hinge assembly. The steering oil cylinder support comprises a support main plate and a support auxiliary plate. The left end and the right end of the support main plate are correspondingly welded with the inner side plates of the left wing box and the right wing box; the support auxiliary plate and the support main plate are arranged in parallel at an interval up and down and are fixed relative to the support main plate; steering oil cylinder pin shaft holes which are coaxially aligned are formed in the support main plate and the support auxiliary plate. The steering oil cylinder support is arranged between the left wing box inner side plate and the right wing box inner side plate of the front frame and located on the front side of the steering hinge assembly, arrangement of a single steering oil cylinder is facilitated, the steering oil cylinder is mainly located in the front frame, and arrangement of parts is facilitated.

Description

Technical Field

[0001] The utility model relates to an articulated vehicle frame, and more specifically to an articulated front vehicle frame and a loader. Background Art

[0002] Articulated frames are commonly used in the field of engineering machinery. They include a front frame and a rear frame connected in an articulated manner. A steering cylinder is connected between the front and rear frames. The steering cylinder is retracted to push the front and rear frames to twist relative to each other around the intersection pin shaft to achieve steering.

[0003] In construction machinery, two steering cylinders are usually arranged symmetrically about the middle plane. However, in some micro-construction machinery, due to the limited space on the front and rear frames, there is often not enough space to install two steering cylinders. In addition, the steering force required on micro-machines is relatively small, and often a single steering cylinder can meet the steering requirements. Therefore, how to reasonably configure a single steering cylinder on a micro-machine has become a problem that machine manufacturers need to face. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to arrange a single steering cylinder on a machine, and provides an articulated front frame and a loader.

[0005] The utility model provides a technical solution to achieve its purpose: an articulated front frame, including left and right wing boxes, a steering articulation assembly welded to the inner side plates of the left and right wing boxes at the left and right ends, and a steering cylinder support arranged in front of the steering articulation assembly, wherein the steering cylinder support includes:

[0006] The support main board is arranged in parallel with the hinge plate in the steering hinge assembly, and its left and right ends are correspondingly welded to the inner side plates of the left and right wing boxes;

[0007] A support sub-plate, arranged parallel to and spaced apart from the support main plate and fixed relative to the support main plate;

[0008] The support main plate and the support sub-plate are provided with coaxially aligned steering cylinder pin shaft holes.

[0009] In the articulated front frame of the utility model, the support main plate is located on the upper side of the support sub-plate.

[0010] In the articulated front frame of the utility model, the support sub-plate is arranged deviating from the middle surface of the front frame; the steering cylinder support also includes a first support plate, and the first support plate is vertically welded to the first end of the support sub-plate adjacent to the middle surface of the front frame in the left-right direction and the support main plate; the second end of the support sub-plate in the left-right direction away from the middle surface of the front frame is fixedly connected to the inner side plate of the corresponding side wing box in the left and right wing boxes, or the second end of the support sub-plate in the left-right direction away from the middle surface of the front frame is vertically welded to the second support plate, and the second support plate is attached to the inner side plate of the corresponding wing box and vertically welded to the support main plate.

[0011] In the articulated front vehicle frame of the utility model, shaft seat rings surrounding the pin shaft holes of the respective steering oil cylinders are arranged on the opposite sides of the support main plate and the support sub-plate.

[0012] In the articulated front frame of the utility model, the steering cylinder support further comprises triangular ribs, and the triangular ribs are welded between the first supporting plate and the support main plate.

[0013] In the articulated front frame of the utility model, the triangular rib is arranged on a side of the first supporting plate which faces away from the steering cylinder pin shaft hole.

[0014] In the articulated front frame of the utility model, the articulated plates in the steering articulated assembly include upper and lower articulated plates, and the arrangement height of the steering oil cylinder support in the up and down directions is located between the upper and lower articulated plates.

[0015] In the articulated front frame of the utility model, the steering articulation assembly further comprises reinforcing plates whose upper and lower sides are correspondingly welded to the upper and lower articulated plates, and the reinforcing plates are provided with steering oil cylinder avoidance holes which penetrate front and rear.

[0016] In the articulated front frame of the utility model, the reinforcing plate is a bent plate with left and right ends bent forward.

[0017] The utility model provides a technical solution for achieving the purpose: a loader having the aforementioned articulated front frame.

[0018] Compared with the prior art, the steering cylinder support in the utility model is arranged between the inner side plates of the left and right wing boxes of the front frame and is located on the front side of the steering articulation assembly, which is convenient for the arrangement of a single steering cylinder, and the steering cylinder is mainly located in the front frame, which is convenient for component arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the articulated front frame of the utility model Figure 1 .

[0020] Figure 2 The structure of the articulated front frame of the utility model Figure 2 .

[0021] Figure 3 The utility model is a structural diagram of a steering cylinder support in an articulated front frame.

[0022] Figure 4 It is a structural diagram of a steering articulated assembly in an articulated front frame of the utility model.

[0023] Parts names and serial numbers in the figure:

[0024] Articulated front frame 100 .

[0025] Left wing box 10.

[0026] Right wing box 20.

[0027] Steering cylinder support 30 , support main plate 31 , support sub-plate 32 , first support plate 33 , second support plate 34 , triangular rib 35 , steering cylinder pin shaft hole 36 , and shaft seat ring 37 .

[0028] Steering hinge assembly 40 , upper hinge plate 41 , lower hinge plate 42 , reinforcement plate 43 , steering cylinder avoidance hole 44 .

[0029] Steering cylinder 50.

[0030] Articulated rear frame 200. DETAILED DESCRIPTION

[0031] The specific implementation scheme is described below with reference to the accompanying drawings.

[0032] like Figure 1 Figure 2 As shown, the articulated front frame 100 includes left and right wing boxes, a steering hinge assembly 40 whose left and right ends are welded to the inner side panels of the left and right wing boxes, and a steering cylinder support 30 arranged in front of the steering hinge assembly 40. The steering cylinder support 30 includes: a support main plate 31 and a support sub-plate 32.

[0033] The support main plate 31 is arranged in parallel with the hinge plate in the steering hinge assembly 40, and its left and right ends are welded to the inner side plates of the left and right wing boxes respectively; the support sub-plate 32 is arranged in parallel with the support main plate 31 at an interval up and down and is fixed relative to the support main plate 31. The support main plate 31 and the support sub-plate 32 are provided with coaxially aligned steering cylinder pin shaft holes 36.

[0034] The left and right wing boxes of the articulated front frame 100 are respectively the left wing box 10 and the right wing box 20, and the inner side plate of the left wing box 10 is opposite to the inner side plate of the right wing box 20. The left and right ends of the support main board 31 are welded to the inner side plates of the left wing box 10 and the inner side plates of the right wing box 20.

[0035] Optionally, the support main plate 31 is located on the upper side of the support sub-plate 32. In some other embodiments, the support main plate 31 may also be located on the lower side of the support sub-plate 32.

[0036] Optionally, the support sub-plate 32 is arranged away from the middle plane of the front frame; Figure 2 As shown, the support sub-plate 32 is arranged toward the right side, the right end of the support sub-plate 32 is adjacent to the inner side plate of the right wing box 20, and the left end of the support sub-plate 32 is adjacent to the middle surface of the front frame. In some other embodiments, the support sub-plate 32 can also be arranged toward the left side, that is, the left end of the support sub-plate 32 is adjacent to the inner side plate of the left wing box 10, and the right end of the support sub-plate 32 is adjacent to the middle surface of the front frame.

[0037] The steering cylinder support 30 also includes a first support plate 33 and a second support plate 34. Figure 3 As shown, the first support plate 33 is arranged vertically, and is vertically welded to the first end (i.e., the left end) of the support sub-plate 32 adjacent to the middle surface of the front frame in the left-right direction and the support main plate 31. The second end (i.e., the right end) of the support sub-plate 32 away from the middle surface of the front frame in the left-right direction is vertically welded to the second support plate 34, and the second support plate 34 is attached to the inner side plate of the right wing box 20 and is vertically welded to the right end of the support main plate 31. In some other embodiments, the right end of the support sub-plate 32 can also be directly welded to the inner side plate of the right wing box 20.

[0038] Alternatively, if Figure 3 As shown, the lower side of the support main plate 31 and the upper side of the support sub-plate 32 are opposite to each other, and the two opposite sides are both provided with shaft seat rings 37 surrounding the respective steering cylinder pin shaft holes 36.

[0039] Optionally, the steering cylinder support 30 further includes a triangular rib 35, which is welded between the first support plate 33 and the support main plate 31. Further, the triangular rib 35 is arranged on the side of the support plate 33 facing away from the steering cylinder pin hole (the left side of the support plate).

[0040] like Figure 4 As shown, the hinge plates in the steering hinge assembly 40 include an upper hinge plate 41 and a lower hinge plate 42 , and the upper hinge plate 41 and the lower hinge plate 42 are provided with coaxial hinge holes for hinged connection with the articulated rear frame 200 .

[0041] like Figure 1 Figure 2As shown, the arrangement height of the steering cylinder support 30 in the vertical direction is located between the upper hinge plate 41 and the lower hinge plate 42. A reinforcing plate 43 is arranged between the upper hinge plate 41 and the lower hinge plate 2. The upper and lower sides of the reinforcing plate 43 are correspondingly welded to the upper hinge plate 41 and the lower hinge plate 42. The reinforcing plate 43 is a bent plate with left and right ends bent forward. A steering cylinder avoidance hole 44 that penetrates front and back is arranged on the reinforcing plate 43 at the rear position of the steering cylinder pin shaft hole 36 on the steering cylinder support 30, so that the steering cylinder 50 can extend from front to back and swing within a certain range.

[0042] This embodiment also provides a loader, which is an articulated frame, and the articulated frame includes the aforementioned articulated front frame 100. A steering cylinder 50 is arranged between the articulated front frame 100 and the articulated rear frame 200. Figure 1 Figure 2 As shown, the front end of the steering cylinder 50 is connected to the steering cylinder support 30 through a pin shaft, and the rear end of the steering cylinder 50 is connected to the articulated rear frame 200. Most of the cylinder barrel of the steering cylinder 50 is located in the articulated front frame 100 and is connected to the steering cylinder support 30, so that there is enough clearance between the steering cylinder 50 and the inner side plate of the right wing box 20, thereby providing a swing space for the steering cylinder 50 when it is extended or retracted. This structure and arrangement of the steering cylinder support 30 makes the articulated frame structure compact and facilitates the arrangement of the steering cylinder.

Claims

1. An articulated front frame, comprising left and right wing boxes, a steering articulated assembly with left and right ends welded to the inner side panels of the corresponding left and right wing boxes, and a steering cylinder support arranged in front of the steering articulated assembly, characterized in that: The steering cylinder support comprises: The support main board is arranged in parallel with the hinge plate in the steering hinge assembly, and its left and right ends are correspondingly welded to the inner side plates of the left and right wing boxes; A support sub-plate, spaced apart from and arranged parallel to the support main plate and fixed relative to the support main plate; The support main plate and the support sub-plate are provided with coaxially aligned steering cylinder pin shaft holes.

2. The articulated front frame according to claim 1, characterized in that: The support main plate is located on the upper side of the support sub-plate.

3. The articulated front frame according to claim 1, characterized in that: The support sub-plate is arranged offset from the middle surface of the front frame; the steering cylinder support also includes a first support plate, and the first support plate is vertically welded to the first end of the support sub-plate adjacent to the middle surface of the front frame in the left-right direction and the support main board; the second end of the support sub-plate in the left-right direction away from the middle surface of the front frame is fixedly connected to the inner side plate of the corresponding side wing box in the left and right wing boxes, or the second end of the support sub-plate in the left-right direction away from the middle surface of the front frame is vertically welded to the second support plate, and the second support plate is attached to the inner side plate of the corresponding wing box and vertically welded to the support main board.

4. The articulated front frame according to claim 1, characterized in that: The opposite sides of the support main plate and the support sub-plate are both provided with shaft seat rings surrounding the pin shaft holes of the respective steering oil cylinders.

5. The articulated front frame according to claim 3, characterized in that: The steering cylinder support further comprises triangular ribs which are welded between the first support plate and the support main plate.

6. The articulated front frame according to claim 5, characterized in that: The triangular rib is arranged on a side of the first support plate that faces away from the steering cylinder pin shaft hole.

7. The articulated front frame according to any one of claims 1 to 6, characterized in that: The hinge plates in the steering hinge assembly include upper and lower hinge plates, and the arrangement height of the steering cylinder support in the up and down directions is located between the upper and lower hinge plates.

8. The articulated front frame according to claim 7, characterized in that: The steering hinge assembly further comprises a reinforcing plate whose upper and lower sides are correspondingly welded to the upper and lower hinge plates, and the reinforcing plate is provided with a steering cylinder avoidance hole which passes through the front and rear.

9. The articulated front frame according to claim 8, characterized in that: The reinforcing plate is a bent plate with left and right ends bent forward.

10. A loader, characterized in that An articulated front frame according to any one of claims 1 to 9.

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