CN210597440U

CN210597440U - Supporting leg device

Info

Publication number: CN210597440U
Application number: CN201920968811.9U
Authority: CN
Inventors: 朱文彪; 蔡政军; 张旺
Original assignee: Chenggong Heavy Industry Machinery Co Ltd
Current assignee: Chenggong heavy industry (Suining) Machinery Co.,Ltd.
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-05-22
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a supporting leg device, which relates to the field of engineering machinery and aims to solve the problem of nonadjustable supporting leg height in the prior art, and comprises an inner box (1), an outer box (2), an oil cylinder (3) and a base (4), wherein the oil cylinder (3) is vertically arranged on the base (4), the inner box (1) is arranged outside the oil cylinder (3), and the outer box (2) is arranged outside the inner box (1); the movable end of the oil cylinder (3) is connected with the lower end of the inner box (1), the fixed end of the oil cylinder (3) is connected with the upper end of the outer box (2), and the oil cylinder (3) can stretch to drive the outer box (2) to move up and down relative to the inner box (1). The utility model discloses a flexible of hydro-cylinder (3) drives outer container (2) and does for inner box (1) and reciprocate to the height of adjustment landing leg has simple structure, convenient operation's characteristics.

Description

Supporting leg device

Technical Field

The utility model relates to an engineering machine tool field, concretely relates to landing leg device.

Background

The excavator is a common construction equipment, has various functions of excavating, loading and unloading, leveling, crushing, hoisting, drawing and the like, is widely applied to various constructions, such as the excavation of soil, coal, silt and soil and rocks after pre-loosening, and is one of the most main engineering machines in engineering construction.

The existing excavator is generally provided with a traveling mechanism at the lower part and a revolving mechanism at the upper part, wherein the revolving mechanism is rotatably arranged on the traveling mechanism. The front part of the swing mechanism is provided with a movable arm of the excavator, the rear end of the movable arm is connected with the swing mechanism, and the operation range of the excavator is controlled by the rotation of the swing mechanism. However, when the excavator is used, the excavator is inconvenient to move due to the large volume of the excavator, and the operation area of the excavator is limited. Therefore, the excavator is added with a side shift function, namely, the mechanical arm of the excavator is arranged on the door frame and can move left and right on the door frame to enlarge the operation range. The mast is typically mounted between two legs. The existing supporting legs are only used for supporting the portal frame, and cannot meet the lifting requirements of the portal frame, so that the requirements of different ground surfaces cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a landing leg device to solve among the prior art the nonadjustable problem of landing leg height, make it can adjust the landing leg height as required, have simple structure, convenient operation's characteristics.

The utility model provides a supporting leg device, which comprises an inner box, an outer box, an oil cylinder and a base, wherein the oil cylinder is vertically arranged on the base, the inner box is arranged outside the oil cylinder, and the outer box is arranged outside the inner box; the movable end of the oil cylinder is connected with the lower end of the inner box, the fixed end of the oil cylinder is connected with the upper end of the outer box, and the stretching of the oil cylinder can drive the outer box to move up and down relative to the inner box.

As a preferred measure of the present invention, the inner box and be provided with between the outer container and be used for spacing first slider and second slider, wherein, first slider set up in the lateral surface of inner box with the lower extreme of the medial surface of outer container, the second slider set up in the lateral surface of inner box with the upper end of the medial surface of outer container.

As a preferable measure of the present invention, the first slider and the second slider are both configured to have a structure with one end being a large end surface and the other end being a small end surface; the small end face of the first sliding block is positioned on the outer box, the large end face of the first sliding block is arranged between the outer side face of the inner box and the inner side face of the outer box, the small end face of the second sliding block is positioned on the inner box, and the large end face of the second sliding block is arranged between the outer side face of the inner box and the inner side face of the outer box.

As a preferable measure of the present invention, an adjusting mechanism for adjusting the gap between the inner box and the outer box is provided at the bottom end of the outer box.

As the utility model discloses a preferred measure, guiding mechanism includes bolt, activity briquetting, gasket and ejector pad the outer container outside is provided with the activity briquetting with be provided with the gasket between the outer container, the ejector pad sets up the activity briquetting with between the inner box, the bolt is through compressing tightly the activity briquetting is fixed on the outer container, in order to adjust the inner box with clearance between the outer container.

As an optimized measure of the utility model, the upper end and the lower extreme of hydro-cylinder all are provided with the engaging lug, and first round pin axle passes respectively the relative both sides face of inner box articulated seat on the bedplate with the engaging lug makes the lower extreme of hydro-cylinder with the inner box is connected on the bedplate.

As a preferred measure of the utility model, the second round pin axle passes the relative both sides face of outer container with the engaging lug makes the upper end of hydro-cylinder with the outer container is connected.

As a preferable measure of the present invention, the first sliding block and/or the second sliding block and/or the pushing block are made of nylon.

As a preferable measure of the present invention, the outer case is provided with a suspension loop and a seat frame.

As a preferable measure of the present invention, the base includes an upper panel and a foot plate, and the upper panel covers the upper surface of the foot plate.

Compared with the prior art, the utility model discloses there is following positive technological effect:

1. the utility model discloses a landing leg device is through connecting inner box with hydro-cylinder one end, and the outer container is connected to the other end, drives the outer container through the flexible of hydro-cylinder and does and reciprocate for the inner box to the height of adjustment landing leg has simple structure, convenient operation's characteristics.

2. The utility model discloses a landing leg device is through setting up the slider between inner box and outer container for reduce the friction between inner box and the outer container, fix a position the effect with the direction to inner box and outer container. The adjusting mechanism is arranged on the outer box and used for adjusting the gap between the inner box and the outer box.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of a leg of the present invention;

fig. 2 is a schematic view of the internal structure of the landing leg of the present invention;

fig. 3 is a schematic view of the internal structure of the bottom end of the leg of the present invention;

fig. 4 is a schematic view of the landing leg and the gantry of the present invention.

In the figure: 1-an inner box; 2-outer box; 21-a seat frame; 22-a suspension loop; 3-oil cylinder; 4-a base; 41-upper panel; 42-foot plate; 5-an adjusting mechanism; 51-bolt; 52-movable pressing block; 53-a spacer; 54-a push block; 61-a first slide; 62-a second slide; 71-a first pin; 72-a second pin; 8-a retainer ring; 9-connecting lugs; 10-right leg; 11-left leg; 12-gantry.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the utility model provides a support leg device, which comprises an inner box 1, an outer box 2, an oil cylinder 3 and a base 4, wherein the oil cylinder 3 is vertically arranged on the base 4, the inner box 1 is arranged outside the oil cylinder 3, and the outer box 2 is arranged outside the inner box 1; wherein, the expansion end of hydro-cylinder 3 is connected with the lower extreme of inner box 1, and the stiff end of hydro-cylinder 3 is connected with the upper end of outer container 2, and the flexible of hydro-cylinder 3 can drive outer container 2 and reciprocate for inner box 1. The utility model discloses an in the embodiment the expansion end of hydro-cylinder 3 be the piston rod of hydro-cylinder 3, the stiff end of hydro-cylinder 3 is the cylinder body end of hydro-cylinder 3. The utility model discloses a connect the one end of hydro-cylinder 3 on inner box 1, the other end is connected on outer container 2, drives outer container 2 through the flexible of hydro-cylinder 3 and does for inner box 1 and reciprocate to the height of adjustment landing leg has simple structure, convenient operation's characteristics.

As shown in fig. 1 to 2, as an alternative embodiment, a first slider 61 and a second slider 62 for position limitation are provided between the inner box 1 and the outer box 2, wherein the first slider 61 is provided at the lower end of the outer side surface of the inner box 1 and the inner side surface of the outer box 2, and the second slider 62 is provided at the upper end of the outer side surface of the inner box 1 and the inner side surface of the outer box 2. When the outer box 2 of the flexible drive landing leg of hydro-cylinder 3 reciprocates for inner box 1, the setting of first slider 61 and second slider 62 is used for reducing the friction between inner box 1 and the outer box 2 to there is the effect of location and direction inner box 1 and outer box 2. The upper and lower two places between inner box 1 and outer container 2 all are equipped with the slider and enable the clearance between inner box 1 and the outer container 2 equal, better play the positioning action.

As shown in fig. 1 to 2, as an alternative embodiment, both the first slider 61 and the second slider 62 are configured such that one side surface is a large end surface and the other side surface is a small end surface. The small end face is in a hollow cylinder shape, the large end face is in a circular shape, and the radius of the hollow cylinder is smaller than that of the circular shape. Wherein, the little terminal surface of first slider 61 is located outer box 2, and is preferred, is equipped with the recess that is used for fixing a position the little terminal surface of first slider 61 on outer box 2, realizes first slider 61 and outer box 2's connection through setting up little terminal surface in the recess. The large end surface of the first slider 61 is provided between the outer side surface of the inner box 1 and the inner side surface of the outer box 2. The small end face of the second sliding block 62 is positioned on the inner box 1, preferably, a groove for positioning the small end face of the second sliding block 62 is arranged on the inner box 1, and the connection between the second sliding block 62 and the inner box 1 is realized by arranging the small end face in the groove. The large end face of the second slider 62 is disposed between the outer side face of the inner box 1 and the inner side face of the outer box 2. The first slide block 61 is arranged between two adjacent side surfaces at the bottom ends of the inner box 1 and the outer box 2. The second slider 62 is provided between the four side surfaces of the upper ends of the inner case 1 and the outer case 2. When the oil cylinder 3 stretches and retracts to drive the outer box 2 of the supporting leg to move up and down relative to the inner box 1, the first sliding block 61 slides up and down relative to the inner box 1 along with the outer box 2, and the second sliding block 62 is fixed on the inner box 1 and does not move along with the outer box 2.

As shown in fig. 1, as an alternative embodiment, an adjusting mechanism 5 for adjusting a gap between the inner box 1 and the outer box 2 is provided at a bottom end of the outer box 2. The outer case 2 is provided with adjustment mechanisms 5 on both side surfaces thereof except for the first slider 61. The right side is provided with an adjusting mechanism 5 for adjusting the left and right clearance between the inner box 1 and the outer box 2. The adjusting mechanism 5 provided on the front side is used to adjust the front-rear gap between the inner box 1 and the outer box 2.

As shown in fig. 3, as an alternative embodiment, the adjusting mechanism 5 includes a bolt 51, a movable pressing block 52, a spacer 53 and a pushing block 54, the movable pressing block 52 is disposed outside the outer box 2, the spacer 53 is disposed between the movable pressing block 52 and the outer box 2, the pushing block 54 is disposed between the movable pressing block 52 and the inner box 1, and the bolt 51 is fixed on the outer box 2 by pressing the movable pressing block 52 to adjust the gap between the inner box 1 and the outer box 2. The spacer 53 is used to prevent the movable pressing block 52 and the outer box 2 from being pressed, and prevent the metal from expanding with heat and contracting with cold to affect the adjustment degree of the adjusting mechanism 5. The number of the spacers 53 can be multiple, and the degree of the pressing of the movable pressing block 52 and the spacers 53 by the two bolts 51 is adjusted, so that the degree of the pressing of the pushing block 54 on the inner box 1 is changed, and further, the gap between the inner box 1 and the outer box 2 is changed. The push blocks 54 in the two adjusting mechanisms 5 also have the functions of reducing friction, positioning and guiding for the inner box 1 and the outer box 2.

As shown in fig. 2, as an alternative embodiment, the upper end and the lower end of the oil cylinder 3 are provided with connecting lugs 9, and the first pin shaft 71 respectively passes through the two opposite side surfaces of the inner box 1, the hinged seat on the seat plate 4 and the connecting lugs 9 to connect the lower end of the oil cylinder 3 and the inner box 1 to the seat plate 4. The shaft hole directions of the connecting lugs 9 at the upper end and the lower end of the oil cylinder 3 are vertically arranged. The upper surface of the seat plate 4 is provided with a hinged seat, and the lower end of the oil cylinder 3 is connected with the hinged seat through a first pin shaft 71 through a connecting lug 9. Two ends of the first pin shaft 71 penetrate through the front side surface and the rear side surface of the inner box 1 and are fixedly connected through retaining rings 8 arranged at two ends of the first pin shaft 71.

As shown in fig. 2, as an alternative embodiment, the second pin 72 passes through the opposite two side surfaces of the outer case 2 and the engaging lug 9 to connect the upper end of the cylinder 3 with the outer case 2. The left end and the right end of a connecting lug 9 at the upper end of the oil cylinder 3 are arranged close to the left side surface and the right side surface of the outer box 2, a second pin shaft 72 penetrates through a shaft hole of the connecting lug 9 and the left side surface and the right side surface of the outer box 2, gaskets are arranged at two ends of the second pin shaft 72 outside the outer box 2 and are tightly attached to the outer box 2, and the gaskets are fixedly connected through a check ring 8 at the upper end of the second pin shaft 72.

As shown in fig. 3, as an alternative embodiment, the inner box 1 is formed by welding a three-sided bent piece with a U-shaped cross section and a fourth surface with two bent ends. The outer box 2 is formed by welding a three-surface bending piece with a U-shaped section and a fourth surface.

In an alternative embodiment, the first slider 61 and/or the second slider 62 and/or the push block 54 are made of nylon.

As shown in fig. 1, as an alternative embodiment, a hanger 22 and a seat frame 21 are provided on the outer case 2. An outwardly protruding seat frame 21 is provided on the outer case 2 for connection to the door frame 12. When two legs are used, the connection of the mast 12 to the legs is achieved by fixedly connecting the mast 12 to the mountings 21 of the two legs.

As shown in fig. 2, as an alternative embodiment, the base 4 includes an upper panel 41 and a foot board 42, and the upper panel 41 covers the surface of the foot board 42 and is fixed by bolts. Preferably, the upper panel 41 may be a rubber plate. The upper surface of the foot plate 42 is covered with the upper panel 41 to reduce the friction of the legs against the base 4, so that the base 4 can be used for a longer time. When the supporting legs are connected with the excavating device, the base 4 plays a role in fixing and positioning and supporting the excavating device during working.

The utility model discloses a landing leg device is when the assembly, select to level firm ground and install the lift landing leg, cooperate with the engaging lug 9 of the bottom of hydro-cylinder 3 with the articulated seat on the base 4 earlier, then with 1 suit of inner box in the outside of hydro-cylinder 3, lower extreme through first round pin axle 71 fixed hydro-cylinder 3 and inner box 1 is on base 4, adorn first slider 61 and second slider 62 respectively on outer container 2 and inner box 1 again, then overlap outer container 2 in the 1 outside of inner box, and be connected outer container 2 and hydro-cylinder 3 with second round pin axle 72.

As shown in fig. 4, the leg device of the present invention may be provided with two legs which are symmetrical left and right, a gantry 12 is provided between the left leg 11 and the right leg 10, and the lifting height of the gantry 12 is adjusted by adjusting the lifting height of the left leg 11 and the right leg 10, so as to drive the excavator device mounted on the gantry 12 to lift integrally; the left leg 11 and the right leg 10 can be respectively adjusted in height so that the left leg 11 and the right leg 10 can be located on different planes, enabling the excavator device to be used on uneven ground.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can make several modifications and improvements without departing from the inventive concept, and all shall be covered by the protection scope of the present invention.

Claims

1. A supporting leg device is characterized by comprising an inner box (1), an outer box (2), an oil cylinder (3) and a base (4), wherein the oil cylinder (3) is vertically arranged on the base (4), the inner box (1) is arranged on the outer side of the oil cylinder (3), and the outer box (2) is arranged on the outer side of the inner box (1); the movable end of the oil cylinder (3) is connected with the lower end of the inner box (1), the fixed end of the oil cylinder (3) is connected with the upper end of the outer box (2), and the oil cylinder (3) can stretch to drive the outer box (2) to move up and down relative to the inner box (1).

2. The leg device according to claim 1, wherein a first sliding block (61) and a second sliding block (62) are arranged between the inner box (1) and the outer box (2) for limiting, wherein the first sliding block (61) is arranged at the lower end of the outer side of the inner box (1) and the inner side of the outer box (2), and the second sliding block (62) is arranged at the upper end of the outer side of the inner box (1) and the inner side of the outer box (2).

3. The leg device according to claim 2, wherein the first slider (61) and the second slider (62) are each configured such that one side surface is a large end surface and the other side surface is a small end surface; the small end face of the first sliding block (61) is positioned on the outer box (2), the large end face of the first sliding block (61) is arranged between the outer side face of the inner box (1) and the inner side face of the outer box (2), the small end face of the second sliding block (62) is positioned on the inner box (1), and the large end face of the second sliding block (62) is arranged between the outer side face of the inner box (1) and the inner side face of the outer box (2).

4. A leg arrangement according to claim 3, characterized in that at the bottom end of the outer box (2) there is an adjusting mechanism (5) for adjusting the gap between the inner box (1) and the outer box (2).

5. The leg device according to claim 4, wherein the adjusting mechanism (5) comprises a bolt (51), a movable pressing block (52), a gasket (53) and a pushing block (54), the movable pressing block (52) is arranged outside the outer box (2), the gasket (53) is arranged between the movable pressing block (52) and the outer box (2), the pushing block (54) is arranged between the movable pressing block (52) and the inner box (1), and the bolt (51) is fixed on the outer box (2) by pressing the movable pressing block (52) so as to adjust the gap between the inner box (1) and the outer box (2).

6. The leg device according to claim 1, characterized in that the upper end and the lower end of the oil cylinder (3) are provided with connecting lugs (9), and a first pin (71) passes through the two opposite side surfaces of the inner box (1), the hinged seat on the base (4) and the connecting lugs (9) respectively to connect the lower end of the oil cylinder (3) and the inner box (1) on the base (4).

7. The leg arrangement as claimed in claim 6, characterized in that a second pin (72) extends through opposite sides of the outer box (2) and the engaging lug (9) to connect the upper end of the cylinder (3) to the outer box (2).

8. The leg arrangement according to claim 5, characterized in that the first slider (61) and/or the second slider (62) and/or the push block (54) are of nylon material.

9. Leg arrangement according to claim 1, characterized in that a suspension loop (22) and a seat frame (21) are provided on the outer box (2).

10. The leg arrangement as claimed in claim 1, characterized in that the base (4) comprises an upper panel (41) and a foot plate (42), the upper panel (41) covering the upper surface of the foot plate (42).