Automatic trolley for construction of heightened section of rectangular tunnel fan

Abstract

The utility model discloses an automatic trolley for construction of a rectangular tunnel fan heightened section. The automatic trolley comprises a trolley body, a formwork, a lifting system and a walking system. The formwork is erected on the upper portion of the trolley body through the lifting system, and the distance between the formwork and the inner wall of a tunnel is adjusted through the lifting system. The walking system is located at the bottom of the trolley body and used for enabling the trolley body to move along tunnel construction. The lifting system comprises a set of lifting columns, the lifting columns are sequentially arranged between the trolley body and the formwork, and the distance between the formwork and the inner wall of the tunnel is adjusted through lifting of the lifting columns. According to the intelligent automatic trolley, the two ends of the formwork can be lifted in an inclined mode, the inclination angle of the formwork is matched with the inclination angle of a fan section, the tunnel top construction of the fan section is effectively achieved, the construction period can be shortened, and the construction quality can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel engineering, and in particular relates to an automatic trolley used for the construction of a fan heightening section of a rectangular tunnel. Background Art

[0002] Tunnel trolleys are essential equipment in the tunnel construction process. They are mainly used for pouring concrete in tunnels. There are many common tunnel trolleys on the market, such as electric trolleys, traction trolleys, etc. Tunnel trolleys are flexible, stable, and have a fast construction speed, which can significantly improve construction efficiency. Due to the existence of the fan heightening section of the rectangular tunnel, traditional trolleys are not applicable. In traditional construction methods, the fan heightening section is usually constructed using the full-chamber bracket method, which has a long construction period and requires a lot of personnel and expenses. In order to shorten the construction period, control construction costs, and improve economic benefits, it is urgent to design a special trolley for the fan heightening section tunnel construction. Summary of the invention

[0003] Purpose of the utility model: The technical problem to be solved by the utility model is to provide an automatic trolley for the construction of a fan heightened section tunnel in view of the deficiencies in the prior art. The template part of the trolley can be placed at an angle, which is very convenient for construction in the fan heightened section.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] An automatic trolley for the construction of a rectangular tunnel fan heightening section comprises a trolley body, a template, a lifting system and a traveling system; the template is erected on the upper part of the trolley body through the lifting system, and the distance between the template and the inner wall of the tunnel is adjusted by the lifting system; the traveling system is located at the bottom of the trolley body and is used for moving the trolley body along the tunnel construction.

[0006] Specifically, the lifting system includes a group of lifting columns, each of which is sequentially arranged between the trolley body and the template, and the distance between the template and the inner wall of the tunnel is adjusted by lifting the lifting columns.

[0007] Furthermore, the lifting column includes a jack, a splicable column and a sleeve; the splicable column is composed of a group of column blocks overlapped up and down, which is used to adjust the installation height of the jack and the starting position of the template lifting; the jack is arranged on the top of the splicable column; the sleeve is respectively sleeved on the top and bottom of the jack.

[0008] Specifically, each column block and the connectable columns and the trolley body below are connected and fixed by bolts.

[0009] Specifically, the jack and the connectable column are connected by bolts.

[0010] Furthermore, the two sleeves at the top and bottom of the jack can be nested with each other when the jack is folded.

[0011] Furthermore, the sleeve is fixed to the upper template and the lower connectable column by welding.

[0012] Specifically, the trolley body includes a crossbeam, a side column, a middle column and a tripod; the middle column is longitudinally supported below the middle of the crossbeam; the side columns are a pair, which are longitudinally supported below the two ends of the crossbeam respectively; the tripod is a pair, which are respectively arranged between the side columns at both ends and the end of the crossbeam.

[0013] Specifically, the template is adapted to the inner wall of the rectangular tunnel to be constructed, and is prefabricated in a factory and assembled on site to be installed on the trolley body.

[0014] Specifically, the walking system includes a track that cooperates with a pulley at the bottom of the trolley body and a motor for driving the trolley body to slide forward and backward. Beneficial Effects

[0015] During the construction of a rectangular tunnel, because fans need to be installed inside the tunnel, the top of the fan section tunnel needs to be slightly higher than that of a normal tunnel, which brings great difficulties to the construction. Compared with the traditional full-chamber support method, the intelligent automatic trolley proposed in this utility model patent can realize the partial tilting and lifting of the two ends of the template to match the tilt angle of the fan section, effectively solving the problem of construction on the top of the fan section tunnel, shortening the construction period and improving the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods, and the above and / or other advantages of the present invention will become more clear.

[0017] Figure 1 It is a schematic diagram of the front structure of the automatic trolley.

[0018] Figure 2 It is a schematic diagram of the side structure of the automatic trolley.

[0019] Figure 3 It is a schematic diagram of the lifting column structure of the automatic trolley.

[0020] Wherein, each reference numeral represents:

[0021] 1- cross beam; 2- cross beam; 3- middle column; 4- tripod; 5- template; 6- jack; 7- connectable column; 8- sleeve; 9- track; 10- column block. DETAILED DESCRIPTION

[0022] The present invention can be better understood according to the following embodiments.

[0023] The structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "front", "back", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0024] Combination Figure 1 and Figure 2 The utility model is an automatic trolley for the construction of a rectangular tunnel fan heightening section, comprising a trolley body, a template 5, a lifting system, and a walking system; the template 5 is erected on the upper part of the trolley body through the lifting system, and the distance between the template 5 and the inner wall of the tunnel is adjusted by the lifting system; the walking system is located at the bottom of the trolley body, and is used for the trolley body to move along the tunnel construction.

[0025] The lifting system includes a group of lifting columns, each of which is sequentially arranged between the trolley body and the template 5. The distance between the template 5 and the inner wall of the tunnel is adjusted by lifting the lifting columns.

[0026] Combination Figure 3 A single lifting column includes a jack 6, a splicable column 7 and a sleeve 8; the splicable column 7 is composed of a group of column blocks 10 overlapped up and down, which is used to adjust the installation height of the jack 6 and the starting position of the template 5; the jack 6 is arranged on the top of the splicable column 7; the sleeve 8 is respectively sleeved on the top and bottom of the jack 6.

[0027] Each column block 10 and the splicable column 7 and the lower trolley body are fixed by bolts, which can be easily disassembled. In this embodiment, the splicable column 7 is composed of a plurality of column blocks 10 with a height of 0.2 m. Each column block and the column block and the lower trolley body are connected by bolts, which is convenient for disassembly. The arrangement of multiple column blocks 10 can achieve a large range of vertical height adjustment. A jack 6 is placed above the splicable column 7 to achieve a small range of vertical adjustment.

[0028] The jack 6 and the connectable column 7 are connected by bolts.

[0029] The two sleeves 8 at the top and bottom of the jack 6 can be nested with each other when the jack 6 is folded.

[0030] The sleeve 8 is fixed to the upper template 5 and the lower connectable column 7 by welding to prevent the jack 6 from lateral movement.

[0031] Combination Figure 1 The trolley body includes a cross beam 1, a side column 2, a middle column 3 and a tripod 4; the middle column 3 is longitudinally supported below the middle of the cross beam 1; the side columns 2 are a pair, longitudinally supported below the two ends of the cross beam 1; the tripod 4 is a pair, respectively arranged between the side columns 2 at both ends and the ends of the cross beam 1. The middle column 3 and the tripod 4 play a role in stabilizing the structure.

[0032] The template 5 is adapted to the inner wall of the rectangular tunnel to be constructed, and is prefabricated in a factory and assembled on site to be installed on the trolley body.

[0033] Combination Figure 1 and Figure 2 The walking system includes a track 9 that cooperates with the pulley at the bottom of the trolley body and a motor for driving the trolley body to slide back and forth.

[0034] Before construction, the cross-sectional dimensions of the heightened rectangular tunnel are first determined, and the length of the connectable columns 7 is determined according to the dimensions of the main body of the trolley and the rectangular tunnel, and the lifting system is assembled with the trolley body and the template 5. The template 5 is pre-processed by the factory according to the tunnel dimensions and then transported to the material area of ​​the construction site.

[0035] After checking all parts and structural dimensions of the trolley, according to the layout positioning, the trolley is moved into place and fixed by the track 9 and the motor, the structural dimensions of each tunnel are checked, and then the position, size, direction, elevation, slope and stability of the trolley are checked as required.

[0036] After the inspection is completed and accepted by the supervising engineer, concrete can be poured.

[0037] The utility model provides an idea and method for an automatic trolley for the construction of a rectangular tunnel fan heightening section. There are many methods and ways to implement the technical solution. The above is only a preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications should also be regarded as the protection scope of the utility model. All components not specified in this embodiment can be implemented using existing technologies.

Claims

1. An automatic trolley for the construction of a rectangular tunnel fan heightening section, characterized in that: The invention comprises four parts: a trolley body, a template (5), a lifting system and a walking system; the template (5) is erected on the upper part of the trolley body through the lifting system, and the distance between the template (5) and the inner wall of the tunnel is adjusted through the lifting system; the walking system is located at the bottom of the trolley body and is used for moving the trolley body along the tunnel construction.

2. The automatic trolley for the construction of the fan heightening section of a rectangular tunnel according to claim 1 is characterized in that: The lifting system comprises a group of lifting columns, each of which is arranged in sequence between the trolley body and the template (5), and the distance between the template (5) and the inner wall of the tunnel is adjusted by lifting the lifting columns.

3. The automatic trolley for the construction of the fan heightening section of a rectangular tunnel according to claim 2 is characterized in that: The lifting column comprises a jack (6), an attachable column (7) and a sleeve (8); the attachable column (7) is formed by a group of column blocks (10) overlapped up and down, and is used to adjust the installation height of the jack (6) and the starting position of the template (5) when lifting; the jack (6) is arranged on the top of the attachable column (7); and the sleeve (8) is respectively sleeved on the top and bottom of the jack (6).

4. The automatic trolley for the construction of the fan heightening section of a rectangular tunnel according to claim 3 is characterized in that: Each column block (10) and the connectable column (7) and the trolley body below are connected and fixed by bolts.

5. The automatic trolley for the construction of the fan heightening section of a rectangular tunnel according to claim 3 is characterized in that: The jack (6) and the connectable column (7) are connected by bolts.

6. The automatic trolley for the construction of the fan heightening section of a rectangular tunnel according to claim 3 is characterized in that: The two sleeves (8) at the top and bottom of the jack (6) can be nested with each other when the jack (6) is folded.

7. The automatic trolley for the construction of the fan heightening section of a rectangular tunnel according to claim 3 is characterized in that: The sleeve (8) is fixed to the upper template (5) and the lower connectable column (7) by welding.

8. The automatic trolley for the construction of the fan heightening section of a rectangular tunnel according to claim 1 is characterized in that: The trolley body comprises a crossbeam (1), a side column (2), a middle column (3) and a tripod (4); the middle column (3) is longitudinally supported below the middle of the crossbeam (1); the side columns (2) are a pair, and are longitudinally supported below the two ends of the crossbeam (1); the tripod (4) is a pair, and is respectively arranged between the side columns (2) at the two ends and the end of the crossbeam (1).

9. The automatic trolley for the construction of the fan heightening section of a rectangular tunnel according to claim 1 is characterized in that: The template (5) is adapted to the inner wall of the rectangular tunnel to be constructed, and is prefabricated in a factory and assembled on site to be installed on the trolley body.

10. The automatic trolley for the construction of the fan heightening section of a rectangular tunnel according to claim 1 is characterized in that: The walking system comprises a track (9) cooperating with a pulley at the bottom of the trolley body and a motor for driving the trolley body to slide forward and backward.

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