CN218543640U

CN218543640U - Landing leg rotary mechanism

Info

Publication number: CN218543640U
Application number: CN202221986722.5U
Authority: CN
Inventors: 赵志远; 刘丽英; 马捷
Original assignee: Tianjin Yishan Construction Machinery Co Ltd
Current assignee: Tianjin Yishan Construction Machinery Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-02-28
Anticipated expiration: 2032-07-29

Abstract

The utility model provides a supporting leg rotating mechanism, which comprises a supporting leg body, a guide block, a main shaft, an oil cylinder and a matching cavity; the top of the supporting leg body is provided with a guide block, the guide block is connected with the first end of the main shaft through a bearing to realize the rotation of the guide block relative to the main shaft, and the second end of the main shaft is connected to the output end of the oil cylinder to realize the reciprocating drive of the main shaft; the main shaft and the oil cylinder are arranged in a matching cavity, and the matching cavity is installed on the bottom surface of the engineering equipment; the guide block is provided with a guide ball, and a guide groove matched with the guide ball is formed in the matching cavity. The utility model discloses a cylinder drive utilizes guide structure to realize the change of landing leg angle, and then realizes packing up and putting down of landing leg.

Description

Landing leg rotary mechanism

Technical Field

The utility model belongs to the engineering equipment field especially relates to a landing leg rotary mechanism.

Background

To engineering mechanism field, often can use some equipment that need stabilize the chassis and just can use, these equipment are when using, through putting down landing leg and bottom surface contact, strengthen the stable nature on chassis, and then guarantee going on smoothly of engineering, but when not using, if let the landing leg be in the state of placing downwards always, so will occupy more space, and cause to collide with easily to the people, so need let the landing leg accomplish to rise and fall in a flexible way, can realize through the motor rotation, but because the landing leg kind is many, some quality increase, if use the motor, can cause the damage to the motor for a long time, reduce life.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a landing leg rotary mechanism, through cylinder drive, utilize guide structure to realize the change of landing leg angle, and then realize packing up and putting down of landing leg.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a supporting leg rotating mechanism comprises a supporting leg body, a guide block, a main shaft, an oil cylinder and a matching cavity; the top of the supporting leg body is provided with a guide block, the guide block is connected with the first end of the main shaft through a bearing to realize the rotation of the guide block relative to the main shaft, and the second end of the main shaft is connected to the output end of the oil cylinder to realize the reciprocating drive of the main shaft; the main shaft and the oil cylinder are arranged in a matching cavity, and the matching cavity is mounted to the bottom surface of the engineering equipment; the guide block is provided with a guide ball, and a guide groove matched with the guide ball is formed in the matching cavity.

Furthermore, the whole of guide block is cylindricly, and the landing leg body is installed to the one side of guide block, be rigid connection between landing leg body and the guide block.

Furthermore, a plurality of guide balls which are uniformly distributed are arranged on the circumferential outer surface of the guide block, and the guide balls are hemispherical.

Furthermore, the tip in cooperation chamber includes a uide bushing and a cooperation section of thick bamboo, and a uide bushing and a cooperation section of thick bamboo end to end form an organic whole structure, the uide bushing setting is in the one side adjacent with the guide block.

Furthermore, the inner wall of the guide sleeve is provided with guide grooves corresponding to the guide balls one to one; and the distribution of the guide grooves is spiral.

Further, the number of the guide balls is at least 3.

Furthermore, the guide ball acts on the guide groove, and the rotation angle of the supporting leg body is 70-90 degrees.

Furthermore, the guide ball and the guide sleeve are made of steel; and the surfaces of the guide ball and the guide groove are both electroplated surfaces.

Compared with the prior art, the utility model provides a landing leg rotary mechanism have following advantage:

(1) A landing leg rotary mechanism, through oil cylinder drive, utilize guide structure to realize the change of landing leg angle, and then realize packing up and putting down of landing leg.

(2) The utility model relates to a supporting leg rotating mechanism; the spherical guide structure is arranged, so that the friction force can be reduced to a certain degree when the guide structure is used for guiding, and the electroplating surface is arranged for the guide ball and the guide groove, so that the friction force is further reduced.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic view of a leg rotation mechanism according to an embodiment of the present invention;

fig. 2 is a schematic view of a hidden mating cavity of a leg rotating mechanism according to an embodiment of the present invention;

fig. 3 is a front view of a guide block according to an embodiment of the present invention;

fig. 4 is a front view of a mating cavity according to an embodiment of the present invention;

fig. 5 is a sectional view of the guide sleeve according to the embodiment of the present invention.

Description of the reference numerals:

1. a leg body; 2. a guide block; 21. a guide ball; 3. a main shaft; 4. an oil cylinder; 5. a mating cavity; 51. a guide sleeve; 52. a fitting barrel; 53. a guide groove.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "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, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A leg rotation mechanism, as shown in fig. 1-5; the supporting leg comprises a supporting leg body 1, a guide block 2, a main shaft 3, an oil cylinder 4 and a matching cavity 5; the top of the supporting leg body 1 is provided with a guide block 2, the guide block 2 is connected with a first end of a main shaft 3 through a bearing to realize rotation of the guide block 2 relative to the main shaft 3, and a second end of the main shaft 3 is connected to an output end of an oil cylinder 4 to realize reciprocating drive of the main shaft 3; the main shaft 3 and the oil cylinder 4 are arranged in a matching cavity 5, and the matching cavity 5 is installed on the bottom surface of the engineering equipment; the guide block 2 is provided with a guide ball 21, and a guide groove 53 matched with the guide ball 21 is arranged in the matching cavity 5.

Because the motor is used, under the action of gravity of the supporting leg body 1, a transmission gear in the motor bears heavier load, certain damage can be caused after a long time, and the service life is influenced, so that the oil cylinder 4 is selected for operation, and the service life is prolonged.

Preferably, the whole of guide block 2 is cylindric, and the landing leg body 1 is installed to the one side of guide block 2, be rigid connection between landing leg body 1 and the guide block 2.

Preferably, a plurality of guide balls 21 are uniformly distributed on the circumferential outer surface of the guide block 2, the guide balls 21 are hemispherical, and the guide balls 21 are uniformly distributed, so that the guide balls 21 are matched with the guide grooves 53, and the guide balls 21 move according to a regular track.

Preferably, the end of the matching cavity 5 comprises a guide sleeve 51 and a matching barrel 52, the guide sleeve 51 and the matching barrel 52 are connected end to form an integral structure, the guide sleeve 51 is arranged on one side adjacent to the guide block 2, the matching cavity 5 is integrated, the guide groove 53 is arranged on the matching end, and the whole interior of the matching cavity 5 is not distributed, so that the waste is avoided due to the limited use length; meanwhile, the matching barrel 52 can be processed to be thinner, so that materials are saved, and the weight is reduced.

Preferably, the inner wall of the guide sleeve 51 is provided with guide grooves 53 corresponding to the guide balls 21 one to one; and the distribution of the guide groove 53 is spiral; the supporting leg body 1 is further enabled to rotate through the design of bolts, and the purpose of lifting is achieved.

Preferably, the quantity of guide ball 21 is 3 at least, and the experiment can learn that 3 guide posts can form triangular structure, forms the triangle overall arrangement at the inner wall of uide bushing 51, provides the support, and is more stable, at the in-process of feeding, avoids droing, the emergence of derailment scheduling problem.

Preferably, the guide ball 21 acts on the guide groove 53, and the rotation angle of the leg body 1 is 70 to 90 degrees.

Preferably, the guide ball 21 and the guide sleeve 51 are made of steel; and the surfaces of the guide ball 21 and the guide groove 53 are plated surfaces, so that the purpose of reducing friction can be achieved.

When the landing leg body 1 is used, the oil cylinder 4 is controlled to work, the output end of the oil cylinder 4 drives the spindle 3 to contract, the guide block 2 enters the guide sleeve 51, the guide ball 21 enters the guide groove 53, and when the spindle 3 contracts, the guide ball 21 travels according to the track of the guide groove 53, so that the purpose of rotating the landing leg body 1 is achieved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A landing leg rotary mechanism which characterized in that: comprises a supporting leg body, a guide block, a main shaft, an oil cylinder and a matching cavity; the top of the supporting leg body is provided with a guide block, the guide block is connected with the first end of the main shaft through a bearing to realize rotation of the guide block relative to the main shaft, and the second end of the main shaft is connected to the output end of the oil cylinder to realize reciprocating drive of the main shaft; the main shaft and the oil cylinder are arranged in a matching cavity, and the matching cavity is installed on the bottom surface of the engineering equipment; the guide block is provided with a guide ball, and a guide groove matched with the guide ball is formed in the matching cavity.

2. A leg rotation mechanism according to claim 1, wherein: the whole of guide block is cylindricly, and the landing leg body is installed to the one side of guide block, be rigid connection between landing leg body and the guide block.

3. A leg rotation mechanism according to claim 2, wherein: the outer surface of the circumference of the guide block is provided with a plurality of guide balls which are uniformly distributed, and the guide balls are hemispherical.

4. A leg rotation mechanism as claimed in claim 1, wherein: the end part of the matching cavity comprises a guide sleeve and a matching barrel, the guide sleeve and the matching barrel are connected end to form an integral structure, and the guide sleeve is arranged on one side adjacent to the guide block.

5. A leg rotation mechanism according to claim 4, wherein: the inner wall of the guide sleeve is provided with guide grooves corresponding to the guide balls one to one; and the distribution of the guide grooves is spiral.

6. A leg rotation mechanism according to claim 1, wherein: the number of the guide balls is at least 3.

7. A leg rotation mechanism according to claim 5, wherein: the rotation angle of the landing leg body is 70-90 degrees under the action of the guide ball and the guide groove.

8. A leg rotation mechanism as claimed in claim 1, wherein: the guide ball and the guide sleeve are made of steel; and the surfaces of the guide ball and the guide groove are both electroplated surfaces.