CN216714386U - Tunnel construction trolley ventilation unit - Google Patents
Tunnel construction trolley ventilation unit Download PDFInfo
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- CN216714386U CN216714386U CN202122764307.7U CN202122764307U CN216714386U CN 216714386 U CN216714386 U CN 216714386U CN 202122764307 U CN202122764307 U CN 202122764307U CN 216714386 U CN216714386 U CN 216714386U
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Abstract
The utility model belongs to the technical field of tunnel construction equipment, and particularly relates to a tunnel construction trolley ventilation device which comprises a ventilation pipeline and a positioning mechanism for positioning the ventilation pipeline, wherein the ventilation pipeline comprises a conveying pipeline and guide pipes arranged at two end parts of the conveying pipeline; the air supply belt positioning device is simple in structure and flexible to use, can position the conveying pipelines with different sizes, facilitates better penetration of the air supply belt, does not damage the air supply belt when the trolley moves, and can effectively protect the air supply belt.
Description
Technical Field
The utility model belongs to the technical field of tunnel construction equipment, and particularly relates to a ventilation device of a tunnel construction trolley.
Background
With the development of underground engineering construction technology in China, medium, long and extra-long tunnels, multi-entrance urban submarine tunnels and the like are built more and more, and the construction difficulty and the tunnel construction ventilation difficulty are also increased more and more; the method comprises the following steps of unfolding a plurality of working faces of a main line through a narrow service tunnel in a three-hole tunnel, constructing, building a working line for working face excavation and lining, wherein the front end of a lining trolley can form a temperature gathering effect due to the shielding effect of the trolley, the ventilation of the working face cannot be efficiently and circularly updated, the traditional ventilation cloth passes through the trolley because the ventilation cloth does not have a special ventilation pipeline, and the ventilation pipe of the traditional tunnel passes through the lining trolley, commonly passes through a drainage side ditch of an inverted arch of the tunnel, passes through a gap of a frame at the top of the lining trolley, or passes through the gap of the frame of the lining trolley and a triangular inclined strut. The ventilation pipe passes through the trolley, ventilation is suspended under the influence of the movement of the trolley, and the ventilation is performed after the trolley is moved in place, so that the ventilation effect of the tunnel face is greatly influenced; the ventilation cloth is often scratched and broken by the movement of the trolley, resulting in wind damage.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a ventilation device of a tunnel construction trolley.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the ventilation device comprises a ventilation pipeline and a positioning mechanism for positioning the ventilation pipeline, wherein the ventilation pipeline comprises a conveying pipeline and a horn-shaped guide pipe arranged at the end part of the conveying pipeline;
the number of the positioning mechanisms is 2-3, the conveying pipeline penetrates through the positioning mechanisms, each positioning mechanism comprises an annular support with a cavity structure and adjustable positioning components which are annularly and uniformly distributed in the inner side area of the annular support, the positioning end of each adjustable positioning component vertically points to the central axis of the annular support, a synchronous driving component for driving all the adjustable positioning components to synchronously adjust is arranged in the annular support, the power output end of the synchronous driving component is connected with the power input end of the adjustable positioning component, and when the positioning section of each adjustable positioning component is in close contact with the outer wall of the conveying pipeline, the conveying pipeline is limited and locked in the positioning mechanisms;
two adjacent positioning mechanisms are connected through a transmission shaft, a stepping motor is arranged on the outer wall of one of the annular supports, and the driving end of the stepping motor is connected with the power input end of the synchronous driving assembly.
Preferably, each adjustable positioning assembly comprises a linear adjusting assembly and a pressing block arranged at an adjusting end of the linear adjusting assembly, the linear adjusting assembly is arranged in the inner side area of the annular support, the linear adjusting assembly points to the central axis of the annular support vertically, and the other end of the linear adjusting assembly extends into the annular support and is connected with a power output end of the synchronous driving assembly.
Preferably, every sharp adjusting part all includes lead screw, strut, slide and support, the lead screw rotates to be installed in the inboard of annular support, and the tip extends to annular support in, the inboard at annular support is installed to the strut, the slide screw thread is installed on the lead screw, and with strut sliding fit, the briquetting is connected with the slide through the support, the tip of lead screw is connected with the power take off end of synchronous drive subassembly.
Preferably, the synchronous driving assembly comprises a gear ring and a reversing transmission assembly, the gear ring is installed in the annular support through a rotating bearing, the reversing transmission assembly corresponds to the lead screws one by one, one end of the reversing transmission assembly is meshed with the gear ring, and the other end of the reversing transmission assembly is connected with the end portions of the lead screws.
Preferably, each reversing transmission assembly comprises a short shaft, a straight gear, a first bevel gear and a second bevel gear, the short shaft is rotatably installed in the annular support, the straight gear is installed on the short shaft and meshed with the gear ring, the first bevel gear is installed at the end of the short shaft, the second bevel gear is installed at the end of the screw rod and meshed with the first bevel gear;
two short shafts in two adjacent positioning mechanisms are connected through a transmission shaft, and the two short shafts are positioned on the same horizontal straight line;
the driving end of the stepping motor is connected with the end part of one of the short shafts.
Preferably, a rubber pad is bonded on the end face of the pressing block.
Preferably, the inner side area of each annular support is provided with 4-6 adjustable positioning assemblies.
Has the advantages that: when the air supply device is used, the air supply belt penetrates through the air supply device, so that the air supply belt cannot be damaged when the trolley moves, and the guide pipes are arranged at the two end parts of the conveying pipeline, so that the air supply belt can penetrate more stably;
when the positioning device is used, the ventilation pipeline is positioned through the positioning mechanism, when the positioning is carried out, the ventilation pipeline firstly penetrates through the annular support, then the stepping motor is started, the stepping motor drives one of the short shafts to move, so that the straight gear drives the gear ring to rotate, the remaining short shafts are driven to rotate simultaneously through the rotation of the gear ring, the short shafts drive the screw rod to rotate through the bevel gear I and the bevel gear II when rotating, the screw rod drives the sliding seat to move towards the direction close to the outer wall of the conveying pipeline when rotating until the pressing block is in close contact with the outer wall of the conveying pipeline, so that the positioning of the conveying pipeline is realized, the annular support and the conveying pipeline are in a coaxial distribution state after the positioning, and through the positioning mode, the conveying pipeline can be stably positioned, and the positioning device can be adapted to the conveying pipelines with different sizes, the flexibility and the commonality when using have been improved to not unidimensional air supply area passes (the air supply area is in the state that the inflation is bloated when the air supply, and pipeline's inner wall can not lead to the fact the extrusion to the air supply area, consequently need correspond the pipeline of size according to the size adaptation in air supply area), has brought the facility for the construction.
The air supply belt positioning device is simple in structure and flexible to use, conveying pipelines with different sizes can be positioned, the air supply belt can be conveniently penetrated, the trolley can not damage the air supply belt when moving, and the air supply belt can be effectively protected.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments of the present invention are briefly described below.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic view of a ventilation duct;
FIG. 4 is a schematic view of the reversing drive assembly;
wherein: the method comprises the following steps of 1-conveying pipeline, 2-guide pipe, 3-air supply belt, 4-annular support, 5-gear ring, 6-rotating bearing, 7-short shaft, 8-straight gear, 9-bevel gear I, 10-bevel gear II, 11-support frame, 12-lead screw, 13-slide seat, 14-support frame and 15-pressing block.
Detailed Description
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product.
Referring to fig. 1 to 4, the tunnel construction trolley ventilation device comprises a ventilation pipeline 1 and a positioning mechanism for positioning the ventilation pipeline, and is characterized in that the ventilation pipeline comprises a conveying pipeline 1 and a horn-shaped guide pipe 2 arranged at the end part of the conveying pipeline 2;
the number of the positioning mechanisms is 2-3, the conveying pipeline 1 penetrates through the positioning mechanisms, each positioning mechanism comprises an annular support 4 with a cavity structure and adjustable positioning components annularly and uniformly distributed in the inner side area of the annular support 4, the positioning ends of the adjustable positioning components vertically point to the central axis of the annular support 4, a synchronous driving component for driving all the adjustable positioning components to synchronously adjust is arranged in the annular support 4, the power output end of the synchronous driving component is connected with the power input end of the adjustable positioning component, and when the positioning section of each adjustable positioning component is tightly contacted with the outer wall of the conveying pipeline 1, the conveying pipeline 1 is limited and locked in the positioning mechanisms;
two adjacent positioning mechanisms are connected through a transmission shaft (not shown in the figure), a stepping motor (not shown in the figure) is arranged on the outer wall of one of the annular supports 4, and the driving end of the stepping motor is connected with the power input end of the synchronous driving component.
In this embodiment, each adjustable positioning component includes a linear adjusting component and a pressing block 15 arranged at the adjusting end of the linear adjusting component, the linear adjusting component is installed in the inner side area of the annular support 4, the linear adjusting component vertically points to the central axis of the annular support 4, and the other end of the linear adjusting component extends into the annular support 4 and is connected with the power output end of the synchronous driving component.
In this embodiment, each linear adjustment assembly includes a screw 12, a bracket 11, a sliding seat 13 and a bracket 14, the screw 12 is rotatably installed on the inner side of the annular support 4, and the end portion extends into the annular support 4, the bracket 11 is installed on the inner side of the annular support 4, the sliding seat 13 is threadedly installed on the screw 12 and is in sliding fit with the bracket 11, the pressing block 15 is connected with the sliding seat 13 through the bracket 14, and the end portion of the screw 12 is connected with the power output end of the synchronous drive assembly.
In this embodiment, the synchronous driving assembly includes a gear ring 5 and a reversing transmission assembly, the gear ring 5 is installed in the annular support 4 through a rotating bearing 6, the reversing transmission assembly corresponds to the lead screw 12 one by one, one end of the reversing transmission assembly is meshed with the gear ring 5, and the other end of the reversing transmission assembly is connected with the end of the lead screw 12.
In the present embodiment, each reversing transmission assembly comprises a short shaft 7, a straight gear 8, a first bevel gear 9 and a second bevel gear 10, wherein the short shaft 7 is rotatably installed in the annular support 4, the straight gear 8 is installed on the short shaft 7, the straight gear 8 is meshed with the gear ring 5, the first bevel gear 9 is installed at the end of the short shaft 7, the second bevel gear 10 is installed at the end of the lead screw 12, and the first bevel gear 9 is meshed with the second bevel gear 10;
two short shafts 7 in two adjacent positioning mechanisms are connected through a transmission shaft, and the two short shafts 7 are positioned on the same horizontal straight line;
the drive end of the stepper motor is connected to the end of one of the stub shafts 7.
In this embodiment, a rubber pad is bonded to the end surface of the pressing block 15.
In the present embodiment, the inner side area of each annular support 4 is provided with 4-6 adjustable positioning assemblies.
When the air supply device is used, the air supply belt 3 penetrates through the air supply device, so that the air supply belt 3 cannot be damaged when the trolley moves, and the guide pipes are arranged at the two end parts of the conveying pipeline, so that the air supply belt can penetrate more stably;
when the positioning device is used, the ventilation pipeline is positioned through the positioning mechanism, when the positioning is carried out, the ventilation pipeline firstly penetrates through the annular support 4, then the stepping motor is started, the stepping motor drives one of the short shafts 7 to move, so that the straight gear 8 rotates, the straight gear 8 drives the gear ring 5 to rotate, the remaining short shafts 7 are further driven to rotate simultaneously through the rotation of the gear ring 5, the short shafts 7 drive the screw rods 12 to rotate through the bevel gears I9 and II 10 when rotating, the screw rods 12 drive the sliding seats 13 to move towards the direction close to the outer wall of the conveying pipeline 1 when rotating until the pressing blocks 15 are in close contact with the outer wall of the conveying pipeline 1, so that the positioning of the conveying pipeline 1 is realized, after the positioning, the annular support 4 and the conveying pipeline 1 are in a coaxially distributed state, and through the positioning mode, the conveying pipeline 1 can be stably positioned, secondly can the adaptation be fixed a position in pipeline 1 to unidimensional not, improved flexibility and commonality when using to not unidimensional air supply area passes (the air supply area is in the state that the inflation is bloated when the air supply, and pipeline's inner wall can not lead to the fact the extrusion to the air supply area, consequently needs correspond the pipeline of size according to the size adaptation in air supply area), has brought the facility for the construction.
The air supply belt positioning device is simple in structure and flexible to use, conveying pipelines with different sizes can be positioned, the air supply belt can be conveniently penetrated, the trolley can not damage the air supply belt when moving, and the air supply belt can be effectively protected.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A tunnel construction trolley ventilation device comprises a ventilation pipeline and a positioning mechanism for positioning the ventilation pipeline, and is characterized in that the ventilation pipeline comprises a conveying pipeline (1) and a trumpet-shaped guide pipe arranged at the end part of the conveying pipeline (1);
the number of the positioning mechanisms is 2-3, the conveying pipeline (1) penetrates through the positioning mechanisms, each positioning mechanism comprises an annular support (4) with a cavity structure and adjustable positioning components which are annularly and uniformly distributed in the inner side area of the annular support (4), the positioning ends of the adjustable positioning components vertically point to the central axis of the annular support (4), a synchronous driving component for driving all the adjustable positioning components to synchronously adjust is arranged in the annular support (4), the power output end of the synchronous driving component is connected with the power input end of the adjustable positioning component, and when the positioning section of each adjustable positioning component is tightly contacted with the outer wall of the conveying pipeline (1), the conveying pipeline (1) is limited and locked in the positioning mechanisms;
two adjacent positioning mechanisms are connected through a transmission shaft, a stepping motor is arranged on the outer wall of one of the annular supports (4), and the driving end of the stepping motor is connected with the power input end of the synchronous driving assembly.
2. The tunnel construction trolley ventilation device according to claim 1, characterized in that each adjustable positioning component comprises a linear adjusting component and a pressing block (15) arranged at an adjusting end of the linear adjusting component, the linear adjusting component is installed at the inner side area of the annular support (4), the linear adjusting component is vertically directed to the central axis of the annular support (4), and the other end of the linear adjusting component extends into the annular support (4) and is connected with a power output end of the synchronous driving component.
3. The tunnel construction trolley ventilation device according to claim 2, wherein each linear adjusting assembly comprises a lead screw (12), a support frame (11), a sliding seat (13) and a bracket (14), the lead screw (12) is rotatably installed on the inner side of the annular support (4), the end part of the lead screw extends into the annular support (4), the support frame (11) is installed on the inner side of the annular support (4), the sliding seat (13) is installed on the lead screw (12) in a threaded mode and is in sliding fit with the support frame (11), the pressing block (15) is connected with the sliding seat (13) through the bracket (14), and the end part of the lead screw (12) is connected with the power output end of the synchronous driving assembly.
4. The tunnel construction trolley ventilation device according to claim 3, characterized in that the synchronous driving assembly comprises a gear ring (5) and a reversing transmission assembly, the gear ring (5) is installed in the annular support (4) through a rotating bearing (6), the reversing transmission assembly corresponds to the lead screw (12) one by one, one end of the reversing transmission assembly is meshed with the gear ring (5), and the other end of the reversing transmission assembly is connected with the end of the lead screw (12).
5. The tunnel construction trolley ventilation device according to claim 4, wherein each reversing transmission assembly comprises a short shaft (7), a straight gear (8), a first bevel gear (9) and a second bevel gear (10), the short shaft (7) is rotatably installed in the annular support (4), the straight gear (8) is installed on the short shaft (7), the straight gear (8) is meshed with the gear ring (5), the first bevel gear (9) is installed at the end of the short shaft (7), the second bevel gear (10) is installed at the end of the screw rod (12), and the first bevel gear (9) is meshed with the second bevel gear (10);
two short shafts (7) in two adjacent positioning mechanisms are connected through a transmission shaft, and the two short shafts (7) are positioned on the same horizontal straight line;
the driving end of the stepping motor is connected with the end part of one short shaft (7).
6. The ventilation device of a tunnel construction trolley according to claim 2, characterized in that a rubber pad is bonded to the end face of the press block (15).
7. A tunnel working trolley ventilation device according to claim 1, characterized in that the inside area of each annular abutment (4) is provided with 4-6 adjustable positioning assemblies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764307.7U CN216714386U (en) | 2021-11-10 | 2021-11-10 | Tunnel construction trolley ventilation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122764307.7U CN216714386U (en) | 2021-11-10 | 2021-11-10 | Tunnel construction trolley ventilation unit |
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| Publication Number | Publication Date |
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| CN216714386U true CN216714386U (en) | 2022-06-10 |
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| CN202122764307.7U Active CN216714386U (en) | 2021-11-10 | 2021-11-10 | Tunnel construction trolley ventilation unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066387A (en) * | 2023-03-23 | 2023-05-05 | 宁武县交通公路工程技术服务中心 | Tunnel ventilation purification device and application method thereof |
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2021
- 2021-11-10 CN CN202122764307.7U patent/CN216714386U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066387A (en) * | 2023-03-23 | 2023-05-05 | 宁武县交通公路工程技术服务中心 | Tunnel ventilation purification device and application method thereof |
| CN116066387B (en) * | 2023-03-23 | 2023-06-06 | 宁武县交通公路工程技术服务中心 | Tunnel ventilation purification device and application method thereof |
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