CN217327357U - Telescopic supporting leg - Google Patents
Telescopic supporting leg Download PDFInfo
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- CN217327357U CN217327357U CN202220192722.1U CN202220192722U CN217327357U CN 217327357 U CN217327357 U CN 217327357U CN 202220192722 U CN202220192722 U CN 202220192722U CN 217327357 U CN217327357 U CN 217327357U
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- supporting
- supporting leg
- leg
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Abstract
The utility model discloses a telescopic supporting leg, which comprises a first telescopic part, a second telescopic part and a supporting part; the first telescopic part and the second telescopic part are respectively connected with the supporting part, and an included angle is formed between the first telescopic part and the second telescopic part; the first telescopic part comprises a supporting leg ball seat, a supporting leg oil cylinder, a supporting leg cavity, a supporting leg transverse cavity and a supporting leg assembly; the supporting leg assembly is movably arranged in the supporting leg transverse cavity; the supporting leg oil cylinder is arranged in the supporting leg cavity, the supporting leg ball seat is arranged at the bottom of the supporting leg cavity, and the supporting leg ball seat is connected with the output end of the supporting leg oil cylinder; by the scheme, the length of the whole vehicle can be shortened, and the rear overhang length can be shortened, so that the departure angle is increased, and the trafficability of the whole vehicle is improved; and the supporting distance in the front-back direction and the supporting distance in the left-right direction can be increased when the supporting legs are unfolded, so that the supporting area of the whole vehicle is increased, and the gravity center of the whole vehicle can be well ensured to be always positioned within the supporting area. The stability of the whole vehicle is ensured under the construction conditions of various working conditions, and the vehicle is not prone to tipping.
Description
Technical Field
The utility model relates to a tunnel construction equipment technical field, concretely relates to telescopic leg.
Background
The arch anchor trolley is a multipurpose novel tunnel construction machine with the functions of steel arch frame installation, net tracing installation, guniting operation and the like, and is often used for underground engineering operations such as mine roadways, tunnels and the like.
The landing leg structure of arching anchor platform among the prior art is flat flexible about generally adopting, the structure of the landing leg of flat flexible about has certain limitation, about flat flexible landing leg can not increase along with the expansion of landing leg to fore-and-aft direction's support distance, want to increase fore-and-aft direction's support distance, just need lean on the back to the landing leg design, extension overhang length has reduced the departure angle after lengthening, this has brought the inconvenience when moving for arching anchor platform truck, the while has also increased holistic cost to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at: aiming at the problems, the telescopic supporting leg is provided, and the problem that inconvenience is brought to an arch anchor trolley during movement due to the fact that the telescopic supporting leg is straight and stretched left and right in the prior art is solved; meanwhile, the problem that bolts at the connecting positions of the supporting legs are easy to damage is solved.
The utility model discloses a realize through following scheme:
a telescopic leg comprises a first telescopic part, a second telescopic part and a supporting part; the first telescopic part and the second telescopic part are respectively connected with the supporting part, and the first telescopic part and the second telescopic part form an included angle.
Based on the telescopic supporting leg, the first telescopic part comprises a supporting leg ball seat, a supporting leg oil cylinder, a supporting leg cavity, a supporting leg transverse cavity and a supporting leg assembly; the supporting leg assembly is movably arranged in the supporting leg transverse cavity, so that the supporting leg assembly can move along the length direction of the supporting leg transverse cavity; the supporting leg oil cylinder is arranged in the supporting leg cavity, the supporting leg ball seat is arranged at the bottom of the supporting leg cavity, the supporting leg ball seat is connected with the output end of the supporting leg oil cylinder, and the supporting leg ball seat can move back and forth along the length direction of the supporting leg cavity under the driving of the supporting leg oil cylinder; the landing leg assembly is connected with the landing leg cavity through a connecting piece.
Based on the telescopic supporting leg, the supporting leg assembly comprises an assembly oil cylinder, a supporting cylinder and a supporting connecting plate; the assembly oil cylinder is arranged in the supporting leg transverse cavity; the supporting cylinder is connected with the output end of the assembly oil cylinder, the supporting cylinder can move along the length direction of the transverse cavity of the supporting leg through the assembly oil cylinder, and the supporting connecting plate is arranged at the end part, far away from the assembly oil cylinder, of the supporting cylinder.
Based on the telescopic supporting leg, an auxiliary connecting plate is arranged on the contact surface of the supporting leg cavity and the supporting connecting plate; the supporting connecting plate is provided with a main supporting part, and the auxiliary connecting plate is provided with an auxiliary supporting part with the shape and size matched with the auxiliary supporting part.
Based on above-mentioned telescopic leg, the main tributary supporting part is the convex surface, and the auxiliary stay portion is the concave surface with convex surface looks adaptation.
Based on above-mentioned telescopic leg, first pars contractilis sets up the same with first pars contractilis.
Based on the telescopic supporting leg, an upper pasting plate and a lower pasting plate are respectively arranged above and below the transverse cavity of the supporting leg; the upper pasting plate and the lower pasting plate are symmetrically arranged.
Based on the telescopic supporting leg, the door-shaped plate is arranged at the outlet of the transverse cavity of the supporting leg.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. by the scheme, the length of the whole vehicle can be shortened, and the rear overhang length can be shortened, so that the departure angle is increased, and the trafficability characteristic of the whole vehicle is improved; and the supporting distance in the front-back direction and the supporting distance in the left-right direction can be increased when the supporting legs are unfolded, so that the supporting area of the whole vehicle is increased, and the gravity center of the whole vehicle can be well ensured to be always positioned within the supporting area. The stability of the whole vehicle is ensured under the construction conditions of various working conditions, and the vehicle is not prone to tipping.
2. In this scheme, through the cooperation of main tributary supporting part and supplementary supporting part, can share the atress between a support section of thick bamboo and the landing leg cavity, reduce the shearing force size that the bolt receives between auxiliary connecting plate and the supporting connection board, play the guard action to the bolt, extension bolt life to reduce holistic cost of maintenance.
Drawings
Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;
fig. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic view of the connection structure of the convex surface and the concave surface of the present invention;
description of the drawings: 1. a first telescopic part; 2. a second telescopic part; 3. a support portion; 101. a leg ball seat; 102. a support oil cylinder; 103. a leg cavity; 104. a lateral cavity of the supporting leg; 105. a leg assembly; 106. a support cylinder; 107. supporting the connecting plate; 108. a convex surface; 109. a concave surface; 110. pasting a board; 111. a lower pasting plate; 112. a door-shaped plate; 113. an auxiliary connecting plate.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", 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 designated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not 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 implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.
As shown in fig. 1 to 3, a telescopic leg comprises a first telescopic part 1, a second telescopic part 2 and a support part 3; the first telescopic part 1 and the second telescopic part 2 are respectively connected with the supporting part 3, the first telescopic part 1 and the second telescopic part 2 form a certain included angle, and the included angle of the first telescopic part 1 and the second telescopic part 2 can be an acute angle, an obtuse angle or a right angle;
the first telescopic part 1 and the second telescopic part 2 are arranged similarly and respectively comprise a supporting leg ball seat 101, a supporting leg oil cylinder 102, a supporting leg cavity 103, a supporting leg transverse cavity 104 and a supporting leg assembly 105; the leg assembly 105 is movably arranged in the leg transverse cavity 104, so that the leg assembly 105 can move along the length direction of the leg transverse cavity 104;
the supporting leg oil cylinder 102 is arranged in a supporting leg cavity 103, the supporting leg ball seat 101 is arranged at the bottom of the supporting leg cavity 103, the supporting leg ball seat 101 is connected with the output end of the supporting leg oil cylinder 102, and the supporting leg ball seat 101 can move back and forth along the length direction of the supporting leg cavity 103 under the driving of the supporting leg oil cylinder 102 to support the arch anchor trolley. The output ends of the supporting leg ball seat 101 and the supporting leg oil cylinder 102 are in spherical contact, and the supporting leg oil cylinder is suitable for supporting various levels of ground.
In some embodiments, the leg cylinders 102 in the first and second telescoping parts 1 and 2 can be independently controlled, so that the telescoping legs can adapt to the ground with steps, and the application range is wider.
The leg assembly 105 comprises an assembly cylinder (not shown), a support cylinder 106 and a support connecting plate 107; the assembly oil cylinder is arranged in the support leg transverse cavity 104; the supporting cylinder 106 is connected with the output end of the assembly oil cylinder, the supporting cylinder 106 can move along the length direction of the supporting leg transverse cavity 104 through the assembly oil cylinder, and the supporting connecting plate 107 is arranged at the end part of the supporting cylinder 106 far away from the assembly oil cylinder;
an auxiliary connecting plate 113 is arranged on the contact surface of the supporting leg cavity 103 and the supporting connecting plate 107; a main supporting part is arranged on the supporting connecting plate 107, and an auxiliary supporting part with the shape and the size matched with those of the auxiliary supporting part is arranged on the auxiliary connecting plate 113; through the cooperation of main supporting part and auxiliary supporting part, can share the atress between support section of thick bamboo 106 and the landing leg cavity 103, reduce the shearing force size that the bolt receives between auxiliary connecting plate 113 and the support connection board 107, play the guard action to the bolt to reduce holistic cost of maintenance.
The arch anchor trolley is a large machine, and each supporting leg of the arch anchor trolley is very stressed, particularly at each joint, so that the stress is very strong, and the damage rate of the joint is usually high; through being provided with main tributary supporting part and supplementary supporting part cooperation in this scheme, share the atress of bolt to protect the bolt.
In this embodiment, the main supporting portion is a convex surface 108, the auxiliary supporting portion is a concave surface 109 matched with the convex surface 108, and when the bolt is assembled, the convex surface 108 is clamped into the concave surface 109, so that the concave surface 109 and the convex surface 108 form a step, and the step is stressed to reduce the stress of the bolt.
The upper surface and the lower surface of the supporting leg transverse cavity 104 are respectively provided with an upper pasting plate 110 and a lower pasting plate 111; the upper pasting plate 110 and the lower pasting plate 111 are symmetrically arranged, and the side surfaces of the two leg transverse cavities 104 close to each other are respectively provided with a side plate; the supporting leg transverse cavity 104 is strengthened through the upper attaching plate 110, the lower attaching plate 111 and the side plates, and the strength of the supporting leg transverse cavity 104 is ensured to meet the requirement after the telescopic process;
a door-shaped plate 112 is arranged at the outlet of the support leg transverse cavity 104; the door-shaped plate 112 is of a ring-shaped structure; similarly, the strength at the outlet of the leg cross cavity 104 can be increased by the configuration of the door shaped plate 112.
Based on above-mentioned structure, through the setting of many places intensive structure, the stability of very big promotion this scheme.
Meanwhile, the length of the whole vehicle and the length of the rear overhang can be reduced through the scheme, so that the departure angle is increased, and the trafficability of the whole vehicle is improved; and the supporting distance in the front-back direction and the supporting distance in the left-right direction can be increased when the supporting legs are unfolded, so that the supporting area of the whole vehicle is increased, and the gravity center of the whole vehicle can be well ensured to be always positioned within the supporting area. The stability of the whole vehicle is ensured under the construction conditions of various working conditions, and the vehicle is not prone to tipping.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A telescopic leg, characterized in that: comprises a first telescopic part, a second telescopic part and a supporting part; the first telescopic part and the second telescopic part are respectively connected with the supporting part, and the first telescopic part and the second telescopic part form an included angle.
2. A telescoping leg as in claim 1, wherein: the first telescopic part comprises a supporting leg ball seat, a supporting leg oil cylinder, a supporting leg cavity, a supporting leg transverse cavity and a supporting leg assembly; the supporting leg assembly is movably arranged in the supporting leg transverse cavity, so that the supporting leg assembly can move along the length direction of the supporting leg transverse cavity; the supporting leg oil cylinder is arranged in the supporting leg cavity, the supporting leg ball seat is arranged at the bottom of the supporting leg cavity, the supporting leg ball seat is connected with the output end of the supporting leg oil cylinder, and the supporting leg ball seat can move back and forth along the length direction of the supporting leg cavity under the driving of the supporting leg oil cylinder; the supporting leg assembly is connected with the supporting leg cavity through a connecting piece.
3. A telescoping leg as in claim 2, wherein: the supporting leg assembly comprises an assembly oil cylinder, a supporting cylinder and a supporting connecting plate; the assembly oil cylinder is arranged in the supporting leg transverse cavity; the supporting cylinder is connected with the output end of the assembly oil cylinder, the supporting cylinder can move along the length direction of the transverse cavity of the supporting leg through the assembly oil cylinder, and the supporting connecting plate is arranged at the end part, far away from the assembly oil cylinder, of the supporting cylinder.
4. A telescoping leg as in claim 3, wherein: an auxiliary connecting plate is arranged on the contact surface of the supporting leg cavity and the supporting connecting plate; the supporting connecting plate is provided with a main supporting part, and the auxiliary connecting plate is provided with an auxiliary supporting part with the shape and the size matched with the main supporting part.
5. A telescoping leg as in claim 4, wherein: the main supporting part is a convex surface, and the auxiliary supporting part is a concave surface matched with the convex surface.
6. A telescopic leg, as claimed in claim 5, wherein: the second telescopic part and the first telescopic part are arranged the same.
7. A telescoping leg as in claim 6, wherein: an upper pasting plate and a lower pasting plate are respectively arranged above and below the transverse cavity of the supporting leg; the upper pasting plate and the lower pasting plate are symmetrically arranged.
8. A telescoping leg as in claim 7, wherein: and a door-shaped plate is arranged at the outlet of the transverse cavity of the supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220192722.1U CN217327357U (en) | 2022-01-24 | 2022-01-24 | Telescopic supporting leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220192722.1U CN217327357U (en) | 2022-01-24 | 2022-01-24 | Telescopic supporting leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217327357U true CN217327357U (en) | 2022-08-30 |
Family
ID=82996226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220192722.1U Active CN217327357U (en) | 2022-01-24 | 2022-01-24 | Telescopic supporting leg |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217327357U (en) |
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2022
- 2022-01-24 CN CN202220192722.1U patent/CN217327357U/en active Active
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