CN216008507U - Self-propelled step landing stage equipment - Google Patents
Self-propelled step landing stage equipment Download PDFInfo
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- CN216008507U CN216008507U CN202121991906.6U CN202121991906U CN216008507U CN 216008507 U CN216008507 U CN 216008507U CN 202121991906 U CN202121991906 U CN 202121991906U CN 216008507 U CN216008507 U CN 216008507U
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Abstract
The utility model discloses self-propelled step trestle equipment which comprises a base, a front-back moving mechanism, a left-right moving mechanism and a bridge floor arranged obliquely, wherein the bridge floor is arranged on the base and is adjustable in length; or the front-back moving mechanism is connected with the base, and the left-right moving mechanism is connected with the base through a telescopic supporting leg; or the front-back moving mechanism and the left-right moving mechanism are respectively connected with the base through telescopic supporting legs. The utility model has the advantages of simple structure, convenient use, contribution to improving the construction efficiency, reducing the construction cost and the like.
Description
Technical Field
The utility model relates to tunnel construction equipment, in particular to self-propelled step trestle equipment.
Background
The step excavation method is used as a tunnel construction process with the excavation speed second to that of a full-section excavation method, is widely applied to the tunnel excavation construction process, and is characterized in that: the tunnel is divided into more than two steps (including two steps, the same below) according to the designed section to form more than two working faces, and the tunnel is excavated step by step.
During the step excavation construction, a gentle slope is usually laid between an upper step and a lower step and between the lower step and the bottom of the tunnel by using muck, so that the construction is convenient for operators and construction machinery to construct on an upper working face. Therefore, as the tunnel is continuously tunneled and the steps are continuously advanced, the slope is continuously laid forwards. When the dregs slope of the lower step is laid, there are some adverse effects: firstly, construction machinery such as an excavator and the like is required to be occupied, and construction of other working faces is influenced; secondly, the residue soil laying area cannot be constructed; thirdly, when the excavation advances, the slope muck still needs to be continuously cleaned, and the subsequent inverted arch construction is influenced. Therefore, when the step excavation method is used for construction, the laid muck slope increases the construction cost and slows down the construction progress.
According to the existing trestle, the main beam is horizontally arranged, construction machinery passes through the main beam, and construction of the area below the main beam is not affected, so that construction efficiency is improved. The two ends of the main beam are respectively supported by the travelling wheels and the telescopic supporting legs and are provided with the travelling bogie in a matched mode, the telescopic supporting legs are also arranged on the travelling bogie, and the walking is realized in a stepping mode through the matching of the telescopic supporting legs and the travelling bogie of the bridge floor. The existing trestle cannot be applied to step excavation construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides self-propelled step trestle equipment which is simple in structure, convenient to use, beneficial to improving the construction efficiency and reducing the construction cost.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a self-propelled step trestle equipment comprises a base, a front-back moving mechanism, a left-right moving mechanism and a bridge floor which is obliquely arranged, wherein the bridge floor is arranged on the base and is adjustable in length; or the front-back moving mechanism is connected with the base, and the left-right moving mechanism is connected with the base through a telescopic supporting leg; or the front-back moving mechanism and the left-right moving mechanism are respectively connected with the base through telescopic supporting legs.
As a further improvement of the above technical solution: the bridge floor includes front axle, rear axle and is located the transition bridge between front axle and the rear axle, the transition bridge is located on the base, the front axle with the rear axle all with the transition bridge is articulated, be equipped with on the base and be used for driving front axle luffing motion's front axle swing driving piece and be used for driving rear axle luffing motion's rear axle swing driving piece.
As a further improvement of the above technical solution: the front axle swing driving piece and the rear axle swing driving piece are oil cylinders, one end of each oil cylinder is hinged to the base, and the other end of each oil cylinder is hinged to the front axle or the rear axle.
As a further improvement of the above technical solution: the front axle and/or the rear axle comprises more than two subsections, and the adjacent subsections are in sliding butt joint and are provided with telescopic driving pieces.
As a further improvement of the above technical solution: the front axle and/or the rear axle comprises more than two subsections, and a folding driving piece is hinged between the adjacent subsections and is provided with the folding driving piece.
As a further improvement of the above technical solution: the front-back moving mechanism is a crawler mechanism or a tire type mechanism or a walking type mechanism.
As a further improvement of the above technical solution: the left-right moving mechanism is a crawler mechanism or a tire type mechanism or a walking type mechanism.
Compared with the prior art, the utility model has the advantages that: according to the self-propelled step trestle equipment disclosed by the utility model, when the step excavation method is used for construction, the obliquely arranged bridge floor can replace a slope paved by using muck, so that the muck slope does not need to be paved, the construction from an operator and construction machinery to an upper operation surface through the bridge floor is facilitated, along with the continuous tunneling of a tunnel and the continuous forward movement of steps, the front-back movement mechanism can drive the base, the left-right movement mechanism and the bridge floor to move forward along the tunnel, and the problems that the construction cannot be carried out in a muck paving area and the muck needs to be cleaned when the excavation moves forward are avoided; if the bridge deck needs to be adjusted in the transverse position of the tunnel, the left-right moving mechanism can drive the front-back moving mechanism, the base and the bridge deck to move along the width direction of the tunnel, the structure is simple, the use is convenient, the construction efficiency is improved, and the construction cost is reduced; the length of the bridge deck is adjustable, the distance between the front and the rear can be further shortened when the bridge deck is extended, a larger construction space is provided for an excavated surface, and the operation of turning around and the like of a vehicle is facilitated; when large-scale blasting is needed, the exposed length of the bridge deck can be shortened, and damage possibly caused by blasting is reduced.
Drawings
Fig. 1 is a schematic front view of a self-propelled step trestle apparatus according to a first embodiment of the present invention.
Fig. 2 is a schematic top view of a self-propelled step landing stage apparatus according to a first embodiment of the present invention.
FIG. 3 is a schematic side view of a self-propelled step landing stage of the present invention.
Fig. 4 is a partially enlarged view of fig. 1.
Fig. 5 is a schematic front view of a self-propelled step trestle apparatus according to a second embodiment of the present invention.
Figure 6 is a schematic structural view of a first embodiment of the deck of the present invention.
Figure 7 is a schematic structural view of a second embodiment of the bridge deck according to the utility model.
The reference numerals in the figures denote: 1. a base; 2. a bridge deck; 21. a front axle; 22. a rear axle; 23. a transition bridge; 24. segmenting; 25. a telescopic driving member; 26. a folding drive member; 3. a front axle swing drive; 4. a rear axle swing drive; 5. a telescopic leg; 6. a forward-backward movement mechanism; 7. a left-right moving mechanism.
Detailed Description
The utility model is described in further detail below with reference to the figures and specific examples of the specification.
Example one
Fig. 1 to 4 show an embodiment of the self-propelled step trestle equipment of the utility model, which comprises a base 1, a front-back moving mechanism 6, a left-right moving mechanism 7 and a bridge deck 2 arranged obliquely, wherein the bridge deck 2 is installed on the base 1 and has an adjustable length, the front-back moving mechanism 6 is connected with the base 1 through a telescopic leg 5, and the left-right moving mechanism 7 is directly connected with the base 1. The structure of the bridge deck 2 can be the same as that of the existing trestle, and is not described again; the front-back direction is the tunneling direction of the tunnel, and the corresponding left-right direction is the width direction of the tunnel; the telescopic legs 5 may be, for example, two or more sections of butt structures, and are driven by cylinders to extend and retract.
According to the self-propelled step trestle equipment, when the step excavation method is used for construction, the obliquely arranged bridge floor 2 can replace a slope paved by using muck, so that the muck slope does not need to be paved, the construction from an operator and construction machinery to an upper operation surface through the bridge floor 2 is facilitated, along with the continuous tunneling of a tunnel and the continuous forward movement of steps, the front-back moving mechanism 6 can drive the left-right moving mechanism 7, the base 1 and the bridge floor 2 to move forward along the tunnel, and the problems that the construction cannot be carried out in a muck paving area and the muck needs to be cleaned when the excavation moves forward are avoided; if the bridge deck 2 needs to be adjusted in the horizontal position in tunnel, the left-right moving mechanism 7 can drive the front-back moving mechanism 6, the base 1 and the bridge deck 2 to move along the width direction of the tunnel, the structure is simple, the use is convenient, the construction efficiency is improved, and the construction cost is reduced. Specifically, when the trestle passes through the vehicle, the telescopic legs 5 drive the front-back moving mechanism 6 to ascend and not to contact with the ground, the left-right moving mechanism 7 contacts with the ground, and the load is borne by the left-right moving mechanism 7, at this time, the left-right moving mechanism 7 can also drive the bridge deck 2 to move left and right, so that the front-back moving mechanism 6 is prevented from being damaged (the front-back moving mechanism 6 is a main walking mechanism, and the left-right traversing mechanism 6 only plays a role when the bridge deck 2 deviates from a central position too much, so as to drive the bridge deck 2 to move left and right); when the trestle needs to move back and forth, the telescopic legs 5 drive the back-and-forth moving mechanism 6 to descend to be in contact with the ground, the left-and-right moving mechanism 7 is lifted to be not in contact with the ground so as to reduce the resistance during walking, the back-and-forth moving mechanism 6 can drive the bridge deck 2 to move back and forth, the use in the limited space of the tunnel is very convenient and flexible, and other machines are not needed; the length of the bridge deck 2 is adjustable, the distance between the front and the rear can be further shortened when the bridge deck is extended, a larger construction space is provided for an excavation surface, and the operation of turning around and the like of a vehicle is facilitated; when large-scale blasting is needed, the exposed length of the bridge deck 2 can be contracted, and the damage possibly caused by blasting can be reduced.
Further, in this embodiment, the bridge deck 2 includes a front axle 21, a rear axle 22 and a transition bridge 23 located between the front axle 21 and the rear axle 22, the transition bridge 23 is disposed on the base 1, the front axle 21 and the rear axle 22 are both hinged to the transition bridge 23, and the base 1 is provided with a front axle swing driving member 3 for driving the front axle 21 to swing up and down and a rear axle swing driving member 4 for driving the rear axle 22 to swing up and down. Can drive front axle 21, rear axle 22 luffing motion through front axle swing driving piece 3, rear axle swing driving piece 4, and then adjust front axle 21, rear axle 22's inclination, adapt to the not step of co-altitude in the tunnel better, it is more convenient to use.
As a preferred embodiment, the forward-backward moving mechanism 6 and the leftward-rightward moving mechanism 7 may be crawler mechanisms, for example. The crawler mechanism has large contact area with the ground, strong bearing capacity and good friction, and is suitable for various rugged grounds and softer grounds. Of course, in other embodiments, the front-back moving mechanism 6 and the left-right moving mechanism 7 may be, for example, a tire-type mechanism, which has a lower cost compared to a crawler-type mechanism; or a walking mechanism.
As a preferred embodiment, the front axle swinging driving piece 3 and the rear axle swinging driving piece 4 are both oil cylinders, one end of each oil cylinder is hinged with the base 1, and the other end of each oil cylinder is hinged with the front axle 21 or the rear axle 22. The front axle 21 and the rear axle 22 can be driven to swing up and down by the stretching of the oil cylinder, and the structure is simple and reliable.
Example two
Fig. 5 shows another embodiment of the self-propelled step trestle arrangement of the present invention, the self-propelled step trestle of this embodiment is substantially the same as the first embodiment except that: in this embodiment, the front-back moving mechanism 6 is directly connected with the base 1, the left-right moving mechanism 7 is connected with the base 1 through the telescopic legs 5, the front-back moving mechanism 6 and the left-right moving mechanism 7 can be respectively contacted with the ground through the extension and contraction of the telescopic legs 5, the bridge deck 2 can be driven to move front and back when the front-back moving mechanism 6 is contacted with the ground, and the bridge deck 2 can be driven to move left and right when the left-right moving mechanism 7 is contacted with the ground.
EXAMPLE III
The self-propelled step trestle equipment of this embodiment is basically the same as the first embodiment and the second embodiment, and the difference is that: in this embodiment, the front-back moving mechanism 6 and the left-right moving mechanism 7 are respectively connected to the base 1 through a telescopic leg 5, and the front-back moving mechanism 6 and the left-right moving mechanism 7 are respectively in contact with the ground through the extension and contraction of the two telescopic legs 5, so as to drive the bridge deck 2 to move front and back or move left and right, and when the two telescopic legs 5 are simultaneously switched in an extension and contraction manner, the switching efficiency is higher than that of the first embodiment and the second embodiment.
Example four
Fig. 6 shows another embodiment of the self-propelled step trestle apparatus of the utility model, which is basically the same as the first embodiment except that: in this embodiment, each of the front axle 21 and the rear axle 22 includes two or more segments 24, and the adjacent segments 24 are in sliding butt joint and are provided with the telescopic driving member 25, that is, the telescopic driving member 25 extends and retracts to drive the adjacent segments 24 to slide relatively, so that the lengths of the front axle 21 and the rear axle 22 can be adjusted. Wherein the telescopic drive 25 may be, for example, a cylinder or the like. Of course, in other embodiments, the length of only the front axle 21 or only the rear axle 22 may be adjusted in a telescopic manner.
EXAMPLE five
Fig. 7 shows another embodiment of the self-propelled step landing stage apparatus of the present invention, which is substantially the same as the first embodiment except that: in this embodiment, each of the front axle 21 and the rear axle 22 includes two or more segments 24, and the adjacent segments 24 are hinged to each other and provided with a folding driving member 26, that is, the folding driving member 26 drives the adjacent segments 24 to bend relatively, so that the length of the front axle 21 and the length of the rear axle 22 can be adjusted. Wherein the folding drive 26 may be, for example, a cylinder or the like. Of course, in other embodiments, the length of only the front axle 21 or only the rear axle 22 may be adjusted by the folding structure.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (7)
1. The utility model provides a self-propelled step landing stage equipment which characterized in that: the bridge deck is characterized by comprising a base (1), a front-back moving mechanism (6), a left-right moving mechanism (7) and a bridge deck (2) which is obliquely arranged, wherein the bridge deck (2) is installed on the base (1) and is adjustable in length, the front-back moving mechanism (6) is connected with the base (1) through telescopic supporting legs (5), and the left-right moving mechanism (7) is connected with the base (1); or the front-back moving mechanism (6) is connected with the base (1), and the left-right moving mechanism (7) is connected with the base (1) through a telescopic supporting leg (5); or the front-back moving mechanism (6) and the left-right moving mechanism (7) are respectively connected with the base (1) through telescopic supporting legs (5).
2. The self-propelled step trestle apparatus of claim 1, wherein: bridge floor (2) include front axle (21), rear axle (22) and be located transition bridge (23) of crossing between front axle (21) and rear axle (22), cross transition bridge (23) and locate on base (1), front axle (21) with rear axle (22) all with it is articulated to cross transition bridge (23), be equipped with on base (1) and be used for driving front axle (21) luffing motion front axle swing driving piece (3) and be used for driving rear axle (22) luffing motion rear axle swing driving piece (4).
3. The self-propelled step trestle apparatus of claim 2, wherein: the front axle swing driving piece (3) and the rear axle swing driving piece (4) are oil cylinders, one end of each oil cylinder is hinged to the base (1), and the other end of each oil cylinder is hinged to the front axle (21) or the rear axle (22).
4. The self-propelled step trestle apparatus of claim 2, wherein: the front axle (21) and/or the rear axle (22) comprises more than two subsections (24), and adjacent subsections (24) are in sliding butt joint and are provided with telescopic driving pieces (25).
5. A self-propelled step trestle apparatus according to claim 2, characterised in that: the front axle (21) and/or the rear axle (22) comprises more than two segments (24), and a folding driving piece (26) is hinged between the adjacent segments (24).
6. A self-propelled step trestle apparatus according to any of claims 1 to 5, characterised in that: the front-back moving mechanism (6) is a crawler mechanism or a tire type mechanism or a walking type structure.
7. A self-propelled step trestle apparatus according to any of claims 1 to 5, characterised in that: the left-right moving mechanism (7) is a crawler mechanism or a tire type mechanism or a walking type mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121991906.6U CN216008507U (en) | 2021-08-20 | 2021-08-20 | Self-propelled step landing stage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121991906.6U CN216008507U (en) | 2021-08-20 | 2021-08-20 | Self-propelled step landing stage equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216008507U true CN216008507U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121991906.6U Active CN216008507U (en) | 2021-08-20 | 2021-08-20 | Self-propelled step landing stage equipment |
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| Country | Link |
|---|---|
| CN (1) | CN216008507U (en) |
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2021
- 2021-08-20 CN CN202121991906.6U patent/CN216008507U/en active Active
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