Transverse unfolding supporting leg structure

Abstract

The utility model relates to the technical field of engineering machinery, in particular to a transverse unfolding supporting leg structure which comprises an outer sleeve, an inner sleeve, a driving mechanism, a vertical supporting leg and a self-adaptive adjusting assembly. The two ends of the outer sleeve are each provided with an inner sleeve in a nested mode, and the two sets of inner sleeves are arranged in a back-to-back mode. The driving mechanism is connected with the inner sleeve and the outer sleeve and used for driving the inner sleeve to slide relative to the outer sleeve. The self-adaptive adjusting assembly is arranged at the end of the outer sleeve and / or the first end of the inner sleeve and used for achieving surface contact of the lap joint area of the outer sleeve and the inner sleeve. The vertical supporting leg is connected with the second end of the inner sleeve. According to the utility model, by arranging the self-adaptive adjusting assembly, the line contact of the lap joint area of the inner sleeve and the outer sleeve is optimized into surface contact, so that the local contact stress is reduced, and the structural reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically providing a transverse outrigger structure. Background Technology

[0002] Horizontal outriggers are widely used in the construction machinery industry as a primary means of increasing the overall support span and improving the stability of the equipment during operation. During operation, the inner sleeve of the horizontal outrigger extends and retracts along the outer sleeve to a preset position. One end of the inner sleeve connects to the vertical outrigger. As the vertical outrigger is subjected to force, the inner and outer sleeves tilt relative to each other due to the gap between them. The angle of tilt changes with the expansion width. The lower edge of the inner sleeve contacts the lower plane of the outer sleeve, and the upper edge of the outer sleeve contacts the upper plane of the inner sleeve. Both of these contacts are line contacts. However, due to the limitations of the overall machine width, the required expansion width of the horizontal outrigger is often large. Therefore, the overlap length of the inner and outer sleeves is very short when expanded, resulting in a large interaction force in the overlap area. This ultimately leads to high local contact stress in the overlap area, affecting the structural strength of the contact area.

[0003] Based on the above, this utility model provides a transverse support leg structure that optimizes the line contact of the inner and outer sleeve overlap area into surface contact, reducing local contact stress and increasing structural reliability. Utility Model Content

[0004] The purpose of this utility model is to provide a transverse support leg structure, and the specific technical solution is as follows:

[0005] A lateral outrigger structure includes an outer sleeve, an inner sleeve, a drive mechanism, a vertical outrigger, and an adaptive adjustment assembly;

[0006] The outer sleeve has inner sleeves nested at both ends, and the two sets of inner sleeves are arranged opposite to each other.

[0007] The driving mechanism is connected to the inner sleeve and the outer sleeve respectively, and is used to drive the inner sleeve to slide relative to the outer sleeve.

[0008] The adaptive adjustment component is disposed at the end of the outer sleeve and / or the first end of the inner sleeve, for achieving surface contact between the overlapping areas of the outer sleeve and the inner sleeve;

[0009] The vertical support leg is connected to the second end of the inner sleeve.

[0010] Furthermore, the outer sleeve includes an outer beam and lifting lugs, the lifting lugs being symmetrically arranged at both ends of the outer beam; a bushing for fixing the drive mechanism is provided on the outer beam.

[0011] Furthermore, the inner sleeve includes an inner beam, a reinforcing plate, and a flange plate; the reinforcing plate is disposed at the first end of the inner beam, and the reinforcing plate is provided with a through hole for the drive mechanism to pass through; the flange plate is disposed at the second end of the inner beam for connection with the vertical support leg; and a bushing two for fixing the drive mechanism is provided on the inner beam.

[0012] Furthermore, the drive mechanism adopts a telescopic hydraulic cylinder, the cylinder barrel of the telescopic hydraulic cylinder is connected to a bushing one via a cylinder barrel pin, and the piston rod of the telescopic hydraulic cylinder is connected to a bushing two via a piston rod pin.

[0013] Furthermore, the adaptive adjustment component includes a sleeve slider and an arc-shaped slider. The sleeve slider is disposed at the end of the outer sleeve and / or the first end of the inner sleeve. The sleeve slider is provided with an arc-shaped groove, and the arc-shaped slider is disposed in the arc-shaped groove. The arc-shaped slider is slidably connected to the arc-shaped groove and the outer sleeve and / or the inner sleeve.

[0014] Furthermore, the arc-shaped groove includes an arc-shaped surface and two side planes, which are disposed opposite to each other on both sides of the arc-shaped surface. The arc-shaped surface and the two side planes form a cavity for accommodating the arc-shaped slider.

[0015] Furthermore, the arc-shaped slider includes an arc surface, a second side plane, and a lower plane. The arc surface matches the arc surface, the second side plane matches the first side plane, and the lower plane is slidably connected to the surface of the outer sleeve and / or the inner sleeve.

[0016] Furthermore, the arc-shaped slider has multiple through holes extending through the arc surface and the lower plane, and graphite is disposed in the through holes.

[0017] Furthermore, the arc-shaped slider is provided with a lubricating oil channel, and the lubricating oil channel is filled with lubricating oil.

[0018] Furthermore, the side of the sleeve slider with the arc-shaped groove is set as an inclined surface, the inclination angle of the inclined surface relative to the horizontal plane is θ, and the angle formed by the overlap of the outer sleeve and the inner sleeve is α, where θ > α.

[0019] The application of the technical solution of this utility model has the following beneficial effects:

[0020] (1) This utility model provides a horizontal support leg structure, including an outer sleeve, an inner sleeve, a drive mechanism, a vertical support leg, and an adaptive adjustment component; the two ends of the outer sleeve are respectively nested with inner sleeves, and the two sets of inner sleeves are arranged opposite to each other; the drive mechanism is connected to the inner sleeve and the outer sleeve respectively, and is used to drive the inner sleeve to slide relative to the outer sleeve; the adaptive adjustment component is disposed at the end of the outer sleeve and / or the first end of the inner sleeve, and is used to realize the surface contact of the overlapping area of ​​the outer sleeve and the inner sleeve; the vertical support leg is connected to the second end of the inner sleeve. In this utility model, by setting the adaptive adjustment component, the line contact of the overlapping area of ​​the inner and outer sleeves is optimized into surface contact, reducing local contact stress and increasing structural reliability.

[0021] (2) In this utility model, the adaptive adjustment component includes a sleeve slider and an arc-shaped slider. The sleeve slider is disposed at the end of the outer sleeve and / or the first end of the inner sleeve. The sleeve slider is provided with an arc-shaped groove, and the arc-shaped slider is disposed in the arc-shaped groove. The arc-shaped slider is slidably connected to the arc-shaped groove and the outer sleeve and / or the inner sleeve. When the lateral support leg is extended into position and subjected to force, the arc-shaped slider slides adaptively in the arc-shaped groove under the action of contact force, realizing surface-to-surface contact between the arc-shaped slider and the upper and lower planes of the sleeve, thereby reducing local stress and increasing structural reliability.

[0022] (3) In this utility model, the arc-shaped slider is provided with multiple through holes through the arc surface and the lower plane. Graphite is provided in the through holes. The graphite is used for lubrication when the arc-shaped slider slides with the arc-shaped groove, the outer sleeve and the inner sleeve, so as to ensure smooth sliding between the contact surfaces.

[0023] (4) In this utility model, the side of the sleeve slider with the arc-shaped groove is set as an inclined surface, the angle of the inclined surface relative to the horizontal plane is θ, and the angle formed by the overlap of the outer sleeve and the inner sleeve is α, θ>α, so as to ensure effective contact between the arc-shaped slider and the outer sleeve and the inner sleeve.

[0024] (5) In this utility model, the arc-shaped groove includes a side plane, which is used to limit the arc-shaped slider.

[0025] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0027] Figure 1 This is a schematic diagram of the transverse support leg structure in an embodiment of this utility model;

[0028] Figure 2 This is a schematic diagram of the unfolded load-bearing state of the transverse support leg structure;

[0029] Figure 3 yes Figure 2 Enlarged view of section I;

[0030] Figure 4 This is a structural diagram of the outer sleeve;

[0031] Figure 5 This is a schematic diagram of the inner sleeve structure;

[0032] Figure 6 This is a schematic diagram of the sleeve slider structure;

[0033] Figure 7 This is a schematic diagram of the planar structure of the sleeve slider;

[0034] Figure 8 This is a schematic diagram of the arc-shaped slider;

[0035] Among them, 1. Outer sleeve, 1.1. Outer beam, 1.2. Lifting lug plate, 1.3. Bushing one, 2. Inner sleeve, 2.1. Inner beam, 2.2. Reinforcing plate, 2.3. Flange plate, 2.4. Bushing two, 3. Drive mechanism, 4. Vertical support leg, 5. Adaptive adjustment component, 5.1. Sleeve slider, 5.1.1. Arc surface, 5.1.2. Side plane one, 5.2. Arc slider, 5.2.1. Circular arc surface, 5.2.2. Side plane two, 5.2.3. Graphite, 6. Cylinder pin, 7. Piston rod pin. Detailed Implementation

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] Example

[0040] See Figure 1 This utility model provides a horizontal support leg structure, including an outer sleeve 1, an inner sleeve 2, a drive mechanism 3, a vertical support leg 4, and an adaptive adjustment component 5; the inner sleeve 2 is provided in two sets, which are nested at both ends of the outer sleeve 1, and the two sets of inner sleeve 2 are arranged opposite to each other; the drive mechanism 3 is connected to the inner sleeve 2 and the outer sleeve 1 respectively, and is used to drive the inner sleeve 2 to slide relative to the outer sleeve 1.

[0041] See Figure 4 The outer sleeve 1 includes an outer beam 1.1 and a lifting lug plate 1.2. The lifting lug plate 1.2 is symmetrically arranged at both ends of the outer beam 1.1. The outer beam 1.1 is provided with a bushing 1.3 for fixing the drive mechanism 3.

[0042] See Figure 5 The inner sleeve 2 includes an inner beam 2.1, a reinforcing plate 2.2, and a flange plate 2.3. The reinforcing plate 2.2 is disposed at the first end of the inner beam 2.1 and is used to strengthen the structural strength of the overlapping area between the inner sleeve 2 and the outer sleeve 1. The reinforcing plate 2.2 is provided with a through hole for the drive mechanism 3 to pass through. The flange plate 2.3 is disposed at the second end of the inner beam 2.1 and is fixedly connected to the vertical support leg 4 by bolts. The inner beam 2.1 is provided with a bushing 2.4 for fixing the drive mechanism 3.

[0043] See Figure 1 and Figure 2 The drive mechanism 3 employs a telescopic hydraulic cylinder. The cylinder barrel of the telescopic hydraulic cylinder is connected to bushing 1.3 via cylinder barrel pin 6, and the piston rod of the telescopic hydraulic cylinder is connected to bushing 2.4 via piston rod pin 7. In this embodiment, two sets of telescopic hydraulic cylinders are provided. The cylinder barrels of both sets of telescopic hydraulic cylinders are fixed on the outer beam 1.1, and the piston rods of the two sets of telescopic hydraulic cylinders are respectively connected to two sets of inner beams 2.1. Through the extension and retraction of the telescopic hydraulic cylinders, the inner sleeve 2 is driven to slide along the outer sleeve 1, thereby expanding the lateral support legs to increase the overall machine span and improve the stability of the equipment during operation.

[0044] See Figures 1-3The adaptive adjustment component 5 is disposed at the end of the outer sleeve 1 and / or the first end of the inner sleeve 2 (i.e., the first end of the inner beam 2.1) to achieve surface contact between the overlapping areas of the outer sleeve 1 and the inner sleeve 2. In this embodiment, preferably, the adaptive adjustment component 5 is disposed at both ends of the outer sleeve 1 and the first end of the inner sleeve 2, respectively located at the upper edge of the end of the outer sleeve 1 and the lower edge of the end of the first end of the inner sleeve 2.

[0045] The adaptive adjustment component 5 includes a sleeve slider 5.1 and an arc slider 5.2. The sleeve slider 5.1 is disposed on the upper edge of the end of the outer sleeve 1 and the lower edge of the first end of the inner sleeve 2. The sleeve slider 5.1 is provided with an arc-shaped groove, and the arc slider 5.2 is disposed in the arc-shaped groove. The arc slider 5.2 is slidably connected to the arc-shaped groove, the outer sleeve 1, and the inner sleeve 2.

[0046] See Figure 6 The arc-shaped groove includes an arc-shaped surface 5.1.1 and a side plane 5.1.2. The side plane 5.1.2 is disposed opposite to each other on both sides of the arc-shaped surface 5.1.1. The arc-shaped surface 5.1.1 and the two side planes 5.1.2 enclose a cavity for accommodating the arc-shaped slider 5.2.

[0047] See Figure 8 The arc-shaped slider 5.2 includes an arc surface 5.2.1, a second side plane 5.2.2, and a lower plane. The arc surface 5.2.1 matches the arc surface 5.1.1, the second side plane 5.2.2 matches the first side plane 5.1.2, and the lower plane is slidably connected to the surface of the outer sleeve 1 and / or the inner sleeve 2. The arc surface 5.2.1 of the arc-shaped slider 5.2 can slide along the arc surface 5.1.1 of the arc groove, and the first side plane 5.1.2 limits the movement of the arc-shaped slider 5.2.

[0048] See Figure 7 The sleeve slider 5.1 has an arc-shaped groove on one side, which is set as an inclined surface. The angle of inclination of the inclined surface relative to the horizontal plane is θ. The angle formed by the overlap of the outer sleeve 1 and the inner sleeve 2 is α, where θ > α, so as to ensure effective contact between the arc-shaped slider 5.2 and the outer sleeve 1 and the inner sleeve 2.

[0049] See Figure 8 The arc-shaped slider 5.2 has multiple through holes that penetrate the arc surface 5.2.1 and the lower plane. Graphite 5.2.3 is sintered in the through holes to ensure lubrication when the arc-shaped slider 5.2 slides with the arc groove, the outer sleeve 1 and the inner sleeve 2.

[0050] As another preferred embodiment, the arc-shaped slider 5.2 may be provided with a lubricating oil channel, which is filled with lubricating oil to achieve lubrication of the contact surfaces between the arc-shaped slider 5.2 and the arc-shaped groove, the outer sleeve 1 and the inner sleeve 2.

[0051] See Figure 2 and Figure 3 When the horizontal outrigger extends to its maximum stroke, and the vertical outrigger 4 supports the ground, the entire weight of the machine acts on the outer sleeve 1. Due to the gap between the outer sleeve 1 and the inner sleeve 2, the outer sleeve 1 and the inner sleeve 2 will tilt relative to each other. The lower edge of the first end of the inner sleeve 2 contacts the lower plane of the outer sleeve 1, and the upper edge of the end of the outer sleeve 1 contacts the upper plane of the inner sleeve 2. At this time, the included angle between the inner and outer sleeves is α. When the horizontal outrigger is under force, the arc-shaped slider 5.2 slides and self-adjusts within the arc-shaped groove under the action of the contact force, realizing the surface contact between the lower plane of the arc-shaped slider 5.2 and the upper plane of the inner sleeve 2 and the lower plane of the outer sleeve 1, thereby reducing local stress and increasing structural reliability.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A transverse support leg structure, characterized in that, It includes an outer sleeve (1), an inner sleeve (2), a drive mechanism (3), vertical support legs (4), and an adaptive adjustment assembly (5); The outer sleeve (1) is nested with inner sleeves (2) at both ends, and the two sets of inner sleeves (2) are arranged opposite to each other; The driving mechanism (3) is connected to the inner sleeve (2) and the outer sleeve (1) respectively, and is used to drive the inner sleeve (2) to slide relative to the outer sleeve (1); The adaptive adjustment component (5) is disposed at the end of the outer sleeve (1) and / or the first end of the inner sleeve (2) to achieve surface contact between the overlapping area of ​​the outer sleeve (1) and the inner sleeve (2); The vertical support leg (4) is connected to the second end of the inner sleeve (2).

2. The transverse support leg structure according to claim 1, characterized in that, The outer sleeve (1) includes an outer beam (1.1) and a lifting lug plate (1.2), the lifting lug plate (1.2) being symmetrically arranged at both ends of the outer beam (1.1); the outer beam (1.1) is provided with a bushing (1.3) for fixing the drive mechanism (3).

3. The transverse support leg structure according to claim 2, characterized in that, The inner sleeve (2) includes an inner beam (2.1), a reinforcing plate (2.2), and a flange plate (2.3); the reinforcing plate (2.2) is located at the first end of the inner beam (2.1), and the reinforcing plate (2.2) has a through hole for the drive mechanism (3) to pass through; the flange plate (2.3) is located at the second end of the inner beam (2.1) and is used to connect with the vertical support leg (4); the inner beam (2.1) has a bushing two (2.4) for fixing the drive mechanism (3).

4. The transverse support leg structure according to claim 3, characterized in that, The drive mechanism (3) adopts a telescopic cylinder. The cylinder barrel of the telescopic cylinder is connected to the bushing one (1.3) through the cylinder barrel pin (6), and the piston rod of the telescopic cylinder is connected to the bushing two (2.4) through the piston rod pin (7).

5. A transverse support leg structure according to any one of claims 1-4, characterized in that, The adaptive adjustment component (5) includes a sleeve slider (5.1) and an arc slider (5.2). The sleeve slider (5.1) is disposed at the end of the outer sleeve (1) and / or the first end of the inner sleeve (2). The sleeve slider (5.1) is provided with an arc-shaped groove. The arc slider (5.2) is disposed in the arc-shaped groove. The arc slider (5.2) is slidably connected to the arc-shaped groove and the outer sleeve (1) and / or the inner sleeve (2).

6. The transverse support leg structure according to claim 5, characterized in that, The arc-shaped groove includes an arc-shaped surface (5.1.1) and two side planes (5.1.2). The side planes (5.1.2) are disposed opposite to each other on both sides of the arc-shaped surface (5.1.1). The arc-shaped surface (5.1.1) and the two side planes (5.1.2) enclose a cavity for accommodating the arc-shaped slider (5.2).

7. A transverse support leg structure according to claim 6, characterized in that, The arc-shaped slider (5.2) includes an arc surface (5.2.1), a second side plane (5.2.2), and a lower plane. The arc surface (5.2.1) matches the arc surface (5.1.1), the second side plane (5.2.2) matches the first side plane (5.1.2), and the lower plane is slidably connected to the surface of the outer sleeve (1) and / or the inner sleeve (2).

8. The transverse support leg structure according to claim 7, characterized in that, The arc-shaped slider (5.2) has multiple through holes that penetrate the arc surface (5.2.1) and the lower plane, and graphite (5.2.3) is placed inside the through holes.

9. A transverse support leg structure according to claim 7, characterized in that, The arc-shaped slider (5.2) is provided with a lubricating oil channel, and the lubricating oil channel is filled with lubricating oil.

10. A transverse support leg structure according to claim 5, characterized in that, The sleeve slider (5.1) has an arc-shaped groove on one side, which is set as an inclined surface. The angle of inclination of the inclined surface relative to the horizontal plane is θ. The angle formed by the overlap of the outer sleeve (1) and the inner sleeve (2) is α, where θ > α.

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