CN220582021U - Stand-bar chassis and vertical hydraulic cylinder - Google Patents

Abstract

The utility model discloses a support foot chassis and a vertical hydraulic cylinder, wherein the support foot chassis comprises a connecting surface and a supporting surface which are respectively arranged at two sides of the support foot chassis, and the connecting surface is used for connecting the support foot chassis and a piston rod; the support surface is provided with continuous tooth-shaped structures, and the continuous tooth-shaped structures are densely distributed on the support surface; the supporting surface is a round surface; the area of the supporting surface is larger than that of the connecting surface; the connecting surface is provided with a groove matched with the end part of the piston rod, two sides of the groove are provided with connecting threaded holes, and the connecting threaded holes are formed in the connecting surface. This stabilizer blade chassis and perpendicular pneumatic cylinder through the holding surface that sets up to have continuous dentate structure, when the holding surface touched the end, continuous dentate structure can produce great ground force of grabbing with the contact surface to stability when guaranteeing to support is in order to avoid the emergence of the scheduling problem of sliding.

Description

Stand-bar chassis and vertical hydraulic cylinder

Technical Field

The utility model relates to a support foot chassis and a vertical hydraulic cylinder, and belongs to the technical field of hydraulic cylinders.

Background

The vertical hydraulic cylinder is a hydraulic actuating element which extends out of the main machine to support the whole weight of the main machine when the main machine is in a working state, so that the working safety and stability of the main machine are ensured. The engineering machinery industry has higher requirements on the safety and high reliability of the vertical hydraulic cylinder, and the failure of the vertical hydraulic cylinder directly causes serious safety accidents.

When the boom is deployed, a large overturning moment is generated, which requires the legs to have a sufficient deployment length. In addition, the supporting leg can generate certain disturbance degree when being stressed. If the vertical supporting leg cylinder is not placed in place, slippage and rollover occur, and serious consequences are caused to the oil cylinder and the host machine.

Therefore, in order to avoid slipping, rollover, etc. and protect the cylinder and the host, a support chassis and a vertical hydraulic cylinder are needed.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a support foot chassis and a vertical hydraulic cylinder.

In order to achieve the above purpose/solve the above technical problems, the present utility model is realized by adopting the following technical scheme:

in a first aspect, the present embodiment provides a foot chassis, comprising a connection surface and a support surface respectively disposed on two sides of the foot chassis, wherein,

the connecting surface is used for connecting the support leg chassis and the piston rod;

the support surface is provided with continuous tooth-shaped structures, and the continuous tooth-shaped structures are densely distributed on the support surface.

Further, the supporting surface is a round surface.

Further, the area of the supporting surface is larger than that of the connecting surface.

Further, the connecting surface is provided with a groove matched with the end part of the piston rod, the piston rod further comprises a support leg gland, connecting threaded holes are formed in two sides of the groove, the connecting threaded holes are formed in the connecting surface, and the support leg gland is arranged on one side, far away from the groove, of the end part of the piston rod and is fixed with the connecting threaded holes through screws.

Further, the axis of the connecting threaded hole is perpendicular to the connecting surface.

Further, a round hole is formed in the middle of the supporting surface, and the round hole is communicated with the groove.

Further, the transition surface between the connecting surface and the supporting surface is arranged in a concave manner.

Further, the machining angle of the tooth structure in the continuous tooth structure is 90 degrees, and the tooth structure is in a rectangular pyramid structure.

In a second aspect, the utility model provides a vertical hydraulic cylinder, comprising a cylinder barrel and a piston rod, wherein one end of the piston rod is connected with the cylinder barrel, and the other end of the piston rod is connected with the support foot chassis in the first aspect.

Compared with the prior art, the utility model has the beneficial effects that:

according to the support foot chassis, the support surface with the continuous tooth-shaped structure is arranged, when the support surface bottoms out, the continuous tooth-shaped structure can generate larger ground grabbing force with the contact surface, so that the stability during support is ensured, and the problems of slippage and the like are avoided;

according to the support leg chassis, the support leg gland, the groove, the screw and the connecting threaded hole are arranged to realize the connection between the piston rod and the connecting surface, so that the stability of the connection of the piston rod and the connecting surface can be ensured;

according to the support foot chassis, the round hole is formed in the middle of the supporting surface and communicated with the groove, so that accumulated water in the groove can be conveniently discharged during outdoor operation;

according to the support foot chassis provided by the utility model, the machining angle of the tooth structure in the continuous tooth structure is 90 degrees, so that the machining difficulty can be reduced;

according to the vertical hydraulic cylinder, through the adaptation of the support leg chassis, larger grabbing force can be generated through the continuous tooth-shaped structure in the support leg chassis and the contact surface, and the stability of the vertical hydraulic cylinder is ensured, so that the sliding of the vertical hydraulic cylinder is effectively prevented, and the high reliability of a product is greatly improved to a certain extent.

Drawings

FIG. 1 is a schematic view of a foot chassis according to a first embodiment;

FIG. 2 is a schematic view of the structure of the support surface in the foot chassis of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 4 is a schematic structural diagram of a vertical hydraulic cylinder according to the second embodiment.

In the figure: 1. a connection surface; 2. a support surface; 3. a piston rod; 4. a groove; 5. a connecting threaded hole; 6. a round hole; 7. a cylinder; 8. a screw; 9. and (5) pressing the supporting leg cover.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

Example 1

As shown in fig. 1 to 3, the present embodiment provides a stand bar chassis, which includes a connection surface 1 and a support surface 2 respectively disposed on two sides of the stand bar chassis, wherein,

the connecting surface 1 is used for connecting the support leg chassis and the piston rod 3;

the support surface 2 is provided with continuous tooth-shaped structures, and the continuous tooth-shaped structures are densely distributed on the support surface 2.

In the above technical scheme, through setting up the holding surface 2 that has continuous dentate structure, when holding surface 2 touches the bottom, continuous dentate structure can produce great ground force of grabbing with the contact surface to guarantee the stability when supporting, in order to avoid the emergence of the scheduling problem of sliding.

In some embodiments, the support surface 2 is a circular surface.

In some embodiments, the support surface 2 has a larger area than the connection surface 1.

In some embodiments, in order to connect the connection surface 1 with the end of the piston rod 3, a groove 4 adapted to the end of the piston rod 3 is formed on the connection surface 1;

in order to realize the fixation of the connecting surface 1 and the end part of the piston rod 3 after connection, the device also comprises a support leg gland 9, wherein the two sides of the groove 4 are provided with connecting threaded holes 5, and the connecting threaded holes 5 are arranged on the connecting surface 1;

the support leg gland 9 is arranged on one side, far away from the groove 4, of the end part of the piston rod 3 and is fixed with the connecting threaded hole 5 through a screw 8, so that the ball head of the end part of the piston rod 3 can rotate freely after being assembled with the support leg chassis.

In some embodiments, to ensure stability when the connection surface 1 is connected to the piston rod 3, the axis of the connection threaded hole 5 is perpendicular to the connection surface 1.

In some embodiments, in order to facilitate the subsequent drainage, a circular hole 6 is formed in the middle of the supporting surface 2, and the circular hole 6 is communicated with the groove 4.

In some embodiments, the transition surface between the connection surface 1 and the support surface 2 is concave.

In some embodiments, in order to reduce the processing difficulty, the processing angle of the tooth structure in the continuous tooth structure is 90 degrees, the tooth depth is L, the tooth width is H, and the tooth structure is in a rectangular pyramid structure so as to generate larger ground grabbing force with the ground, thereby effectively preventing slippage.

In summary, according to the foot chassis provided by the embodiment, the supporting surface 2 with the continuous tooth-shaped structure is provided, when the supporting surface 2 bottoms out, the continuous tooth-shaped structure can generate larger ground grabbing force with the contact surface, so that the stability during supporting is ensured, and the problems of slippage and the like are avoided; the connection between the piston rod 3 and the connection surface 1 is realized by arranging the support leg gland 9, the groove 4, the screw 8 and the connection threaded hole 5, so that the connection stability of the piston rod 3 and the connection surface 1 can be ensured; by arranging the round hole 6 in the middle of the supporting surface 2, the round hole 6 is communicated with the groove 4, so that accumulated water in the groove 4 can be conveniently discharged during outdoor operation; the processing angle of the tooth structure in the continuous tooth structure is 90 degrees, so that the processing difficulty can be reduced.

Example two

As shown in fig. 4, this embodiment provides a vertical hydraulic cylinder, which includes a cylinder barrel 7 and a piston rod 3, wherein one end of the piston rod 3 is connected with the cylinder barrel 7, and the other end is connected with the support chassis of the first embodiment;

in the technical scheme, the vertical hydraulic cylinder provided by the embodiment is matched with the support leg chassis in the first embodiment, so that larger ground grabbing force can be generated through the continuous tooth-shaped structure in the support leg chassis and the contact surface, the stability of the vertical hydraulic cylinder is ensured, the sliding of the vertical hydraulic cylinder can be effectively prevented, and the high reliability of a product is greatly improved to a certain extent;

the number of the vertical hydraulic cylinders in the main machine is generally four, so that the functions of supporting the weight of the whole machine, increasing the contact span with the ground and preventing tipping are achieved; when the vertical hydraulic cylinder is in operation, the vertical hydraulic cylinder extends outwards to prop the ground, so that the whole vehicle leaves the ground, the horizontal working state of the host machine is regulated, the stability of the host machine is ensured when the host machine works, and under the non-working state, the vertical hydraulic cylinder is retracted, and the running state is restored to ensure the stability of the vertical hydraulic cylinder.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims (9)

1. The support foot chassis is characterized by comprising a connecting surface (1) and a supporting surface (2) which are respectively arranged at two sides of the support foot chassis, wherein,

the connecting surface (1) is used for connecting the support foot chassis and the piston rod (3);

the support surface (2) is provided with continuous tooth-shaped structures, and the continuous tooth-shaped structures are densely distributed on the support surface (2).

2. Foot chassis according to claim 1, characterized in that the support surface (2) is a circular surface.

3. Foot chassis according to claim 1, characterized in that the area of the supporting surface (2) is larger than the connecting surface (1).

4. The support foot chassis according to claim 1, characterized in that the connecting surface (1) is provided with a groove (4) adapted to the end part of the piston rod (3), the support foot chassis further comprises a support foot gland (9), two sides of the groove (4) are provided with connecting threaded holes (5), the connecting threaded holes (5) are formed in the connecting surface (1), and the support foot gland (9) is arranged on one side, far away from the groove (4), of the end part of the piston rod (3) and is fixed with the connecting threaded holes (5) through screws (8).

5. Foot chassis according to claim 4, characterized in that the axis of the connecting threaded hole (5) is perpendicular to the connecting surface (1).

6. Foot chassis according to claim 4, characterized in that a round hole (6) is provided in the middle of the support surface (2), which round hole (6) is in communication with the recess (4).

7. The foot chassis of claim 1, wherein the machining angle of the tooth structure in the continuous tooth structure is 90 ° and the tooth structure is a quadrangular pyramid configuration.

8. Foot chassis according to claim 1, characterized in that the transition surface of the connection surface (1) and the support surface (2) is concavely arranged.

9. A vertical hydraulic cylinder comprising a cylinder barrel (7) and a piston rod (3), characterized in that one end of the piston rod (3) is connected to the cylinder barrel (7) and the other end is connected to the foot chassis according to any one of claims 2-8.