CN115972989A - Tunnel construction mobile power supply method and device - Google Patents
Tunnel construction mobile power supply method and device Download PDFInfo
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- CN115972989A CN115972989A CN202310028818.3A CN202310028818A CN115972989A CN 115972989 A CN115972989 A CN 115972989A CN 202310028818 A CN202310028818 A CN 202310028818A CN 115972989 A CN115972989 A CN 115972989A
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Abstract
The invention provides a tunnel construction mobile power supply method, which comprises the steps of arranging an operation track on a tunnel surface, and installing a sliding contact line on the operation track; the method comprises the following steps that a traction support is installed at the top of an engineering truck, a power taking trolley is fixed at the top of the traction support, a current collector is arranged in the power taking trolley and is connected with a power supply down lead, and the power supply down lead is provided with a power supply quick connector used for being connected with a power supply inlet end in the engineering truck; in the process of moving the engineering truck, electricity is taken in real time, and the engineering truck is powered. The invention also provides a tunnel construction mobile power supply device which comprises a metal support, a running track, a sliding contact line, a power taking trolley and a current collector, wherein the current collector is connected with the power down lead, and the power down lead is provided with a power quick connector used for being connected with a power inlet end in an engineering truck. The mobile power supply method and the mobile power supply device for tunnel construction provided by the invention realize power supply for all-line construction vehicles and equipment of a tunnel, and ensure that the tunnel construction process is green, environment-friendly and low in noise.
Description
Technical Field
The invention relates to the technical field of power supply in tunnel construction, in particular to a mobile power supply method and device for tunnel construction.
Background
At present, tunnel construction engineering vehicles are fuel vehicles, and along with the increase of tunnel excavation length, the engineering vehicles are longer and longer in tunnel working time, the air quality of the tunnel is worse and worse, and the health of tunnel construction personnel is seriously damaged. Meanwhile, the existing tunnel construction site is remote, the refueling of the fuel engineering truck is complicated, the construction process is complicated, and a new energy supply mode is urgently needed to be searched for providing energy for tunnel construction.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a tunnel construction mobile power supply method and a tunnel construction mobile power supply device, which utilize the safety of the characteristics of a sliding contact line, combine the characteristics of a tunnel in construction, simultaneously consider that tunnel excavation is gradually advanced along with the progress of a project, and consider that tunnel equipment tools such as two lining trolleys are adopted to carry out overall planning and layout on a power supply mode, realize the power supply of all-line construction vehicles and equipment of the tunnel, ensure that the tunnel construction process is green, environment-friendly and low in noise, and realize the all-line power supply from a tunnel entrance to a tunnel face.
The technical scheme adopted by the invention for solving the technical problem is as follows: the tunnel construction mobile power supply method comprises the following steps:
s1, arranging a support frame on an unfinished tunnel surface along a tunnel construction direction, and hoisting a metal support on a top beam of the support frame; for the finished tunnel surface, directly installing a metal bracket at the top of the tunnel; arranging an operation track at the bottom of the metal bracket, and installing a sliding contact line on the operation track;
s2, a traction support is installed at the top of the engineering truck, a power taking trolley hung on the running track is fixed at the top of the traction support, a current collector is arranged in the power taking trolley and connected with a power supply down lead, and the power supply down lead is provided with a power supply quick connector used for being connected with a power supply inlet wire end in the engineering truck;
and S3, in the process of advancing the engineering truck, the traction support pulls the electricity-taking trolley to slide along the running track, the current collector keeps in contact with the sliding contact line in the sliding process to take electricity in real time, and the current is led to a power supply inlet end in the engineering truck through a power supply down lead so as to realize power supply on the engineering truck.
The trolley lines are safe trolley lines with safe shells, each safe trolley line is 5-7 meters in length, and the trolley lines are installed in a step-by-step mode along the tunnel construction direction so as to propel power supply forwards.
The sliding contact line is a three-phase four-wire sliding contact line or a three-phase five-wire sliding contact line, the number of the current collectors is integral multiple of the number of the sliding contact line stages, and the current collectors are connected in parallel by a junction box.
The electricity taking trolley is of a U-shaped frame structure, the upper surface, the lower surface and the side surface of the electricity taking trolley, which are in contact with the running track, are provided with the idler wheels and the guide wheels, and when the engineering truck travels along the construction direction, the electricity taking trolley travels smoothly along the running track.
The traction support comprises a connecting rod and connecting seats arranged at two ends of the connecting rod through bearings, the top end of the traction support is connected with the electricity-taking trolley through the connecting seats, the bottom end of the traction support is connected with the top of the engineering truck through the connecting seats, and the traction support rotates along with the engineering truck in the process of advancing along the construction direction.
The number of the metal supports hung on the top beams of the support frames is two, the metal supports are arranged in parallel along the tunnel construction direction, and power is respectively supplied to the bidirectional engineering truck in the tunnel.
The support frame adopts the door style of calligraphy structure of constituteing by support strut and back timber, connects fixedly through the fixed knot between support strut and the back timber.
The support frame adopts height-adjustable support, lays the wiping line according to the tooling equipment that the machineshop car will pass: the method comprises the steps of suspending a sliding contact line with the same length as the tooling equipment in the tooling equipment to be penetrated, adjusting the height of a height-adjustable support in front of and behind the tooling equipment to enable the height-adjustable support to be matched with the height of the tooling equipment, and connecting the sliding contact line suspended on the tooling equipment and the sliding contact line arranged on a running track by using an arc-shaped sliding contact line.
The invention also provides a tunnel construction mobile power supply device based on the power supply method, which comprises a metal support, wherein a running track is arranged at the bottom of the metal support, a sliding contact line is arranged at the bottom of the running track, the power taking trolley is hung on the running track, rollers and guide wheels are arranged on the upper surface, the lower surface and the side surfaces of the power taking trolley, which are in contact with the running track, a current collector is arranged in the power taking trolley, the current collector is connected with a power supply down lead, the power supply down lead is provided with a power supply quick connector used for being connected with a power supply inlet end in the engineering truck, the bottom of the power taking trolley is provided with a traction support, the traction support comprises a connecting rod and connecting seats arranged at two ends of the connecting rod through bearings, the top end of the traction support is connected with the power taking trolley through the connecting seats, and the bottom end of the traction support is connected with the top of the engineering truck through the connecting seats.
The metal support is hung on the top beam of the support frame, the support frame adopts a door-shaped structure consisting of a support pillar and the top beam, and the support pillar and the top beam are fixedly connected through a fixing buckle.
The invention has the beneficial effects based on the technical scheme that:
(1) The tunnel construction mobile power supply method and the device provided by the invention utilize the characteristics of safety, greenness and environmental protection of the sliding contact line, the cable can be connected to a long line at multiple points under a long working condition, the voltage drop is reduced, the disassembly and assembly are convenient, the repeated utilization is realized, the cost loss is reduced, and the energy conservation and the environmental protection are realized;
(2) The tunnel construction mobile power supply method and the device can adopt the electricity-taking trolley with a U-shaped structure, and rollers and guide wheels are arranged on the upper surface, the lower surface and the outer side surface of the running track, so that the electricity-taking trolley can walk smoothly when being passively dragged along with the running track;
(3) The connection mode of the traction support in the tunnel construction mobile power supply method and the device provided by the invention can be bearing connection, and can rotate at any angle of 360 degrees, so that an engineering truck can flexibly advance in a tunnel;
(4) According to the tunnel construction mobile power supply method and device, the characteristics of the tunnel face are considered, the sliding contact line is installed according to the condition of the tunnel face, the tunnel face is fixed by the top or the side face, the tunnel face is not fixed by the ground adjustable support, and the problem of difficulty in installation in different environments is solved.
(5) The tunnel construction mobile power supply method and the device can adapt to alternating current and direct current power supply, cables can be connected at multiple points under a longer working condition of a line, voltage drop is reduced, arc-shaped sliding contact lines are arranged on two linings, the adopted sliding contact lines are safe sliding contact lines, and the tunnel construction mobile power supply method and the device are safe and reliable and can adapt to the deviation of left and right running lines of a vehicle.
Drawings
FIG. 1 is a schematic view of the three-dimensional structure of the electricity-taking trolley and the engineering truck.
FIG. 2 is a schematic side view of the electricity-getting trolley and the engineering truck of the present invention.
Fig. 3 is a schematic diagram of the bidirectional power supply method of the present invention.
Fig. 4 is a schematic diagram of power supply modes at different tooling equipment according to the present invention.
In the figure, 1-an engineering truck, 2-a traction support, 3-a power supply down lead, 4-a power-getting trolley, 5-a running track, 6-a metal support, 7-a sliding contact line, 8-a support pillar, 9-a fixing buckle and 10-a top beam.
Detailed Description
The invention is further illustrated by the following figures and examples.
The invention provides a tunnel construction mobile power supply method, which comprises the following steps with reference to fig. 1 to 4:
s1, arranging a support frame on an unfinished tunnel surface along the tunnel construction direction, and hoisting a metal support 6 on a top beam 10 of the support frame. For the finished tunnel surface, such as the front part of a maintenance platform and the rear part of a movable trestle, the metal bracket is directly arranged at the top of the tunnel, and can also be arranged at the side part according to the height limit condition. All fixed modes use modularized installation, and welding is reduced. And arranging a running track 5 at the bottom of the metal bracket in a bolt connection mode, and installing a trolley line 7 on the running track. The trolley lines are safe trolley lines with safe shells, the length of each safe trolley line is 5-7 m, and the safe trolley lines are installed in a step-by-step pushing mode along the tunnel construction direction.
The sliding contact line is a three-phase four-wire sliding contact line or a three-phase five-wire sliding contact line, the number of the current collectors is integral multiple of the number of the sliding contact line stages, and the current collectors are connected in parallel by a junction box.
And S2, installing a traction support 2 on the top of the engineering truck 1, and fixing a power-taking trolley 4 hung on the running track on the top of the traction support. The electricity getting trolley is of a U-shaped frame structure, the upper surface, the lower surface and the side surface of the electricity getting trolley, which are in contact with the running track, are provided with the idler wheels and the guide wheels, and when the engineering truck travels along the construction direction, the electricity getting trolley travels along the running track smoothly. The power-taking trolley is internally provided with a current collector, the current collector is connected with a power down lead 3, and the power down lead is provided with a power quick connector used for being connected with a power inlet end in the engineering truck.
The power supply quick connector can be matched with various tunnel engineering electric driving vehicles, and the corresponding transformation can meet the requirement of using in tunnels.
And S3, in the process of advancing of the engineering truck, the electricity-taking trolley is dragged to slide along the running track through the dragging support, the dragging support comprises a connecting rod and connecting seats arranged at two ends of the connecting rod through bearings, the top end of the dragging support is connected with the electricity-taking trolley through the connecting seats, the bottom end of the dragging support is connected with the top of the engineering truck through the connecting seats, and the dragging support rotates along with the engineering truck in the process of advancing along the construction direction. And in the sliding process, the current collector keeps contact with the sliding contact line, the electricity is obtained in real time, and the current is led to the power supply inlet wire end in the engineering truck through the power supply down lead, so that the power supply to the engineering truck is realized.
The number of the metal supports hung on the top beams of the support frames is two, the metal supports are arranged in parallel along the tunnel construction direction, and power is respectively supplied to the bidirectional engineering vehicles in the tunnel.
The support frame adopts the door style of calligraphy structure of constituteing by support pillar 8 and back timber, connects fixedly between support pillar and the back timber through fixed knot 9.
The support frame adopts height-adjustable support, can used repeatedly, reduces whole technology cost loss, lays the wiping line according to the frock equipment that the machineshop car will walk. For example, starting from a maintenance trolley, since the top and the sides are in the construction phase, the trolley line stationary power supply is carried out in the manner of a height-adjustable bracket. The method comprises the steps of suspending a sliding contact line with the same length as the tooling equipment in the tooling equipment to be penetrated, adjusting the height of a height-adjustable support in front of and behind the tooling equipment, connecting the height-adjustable support with a metal support, fixing a running track by the metal support, running a current collector on the running track, and leading out a cable at the lower end of the current collector to be connected with a traction support on a vehicle. The height-adjustable support is large in adjustment range, the height of the sliding contact line can be adjusted according to the height of a travelling channel of the maintenance trolley, the two-lining trolley and the waterproof board trolley in sequence, the height-adjustable support is matched with the height of the tooling equipment, and the sliding contact line hung on the tooling equipment and the sliding contact line installed on the operation track are connected through the arc-shaped sliding contact line. Under the premise of not influencing other construction influences, the driving space is maximized. Meanwhile, the mounting and dismounting are convenient, and the tunnel can be used repeatedly.
After the movable trestle passes through the waterproof board trolley, the whole height of the movable trestle is lower, the lower part and the side surface belong to construction parts, the mode of hoisting the sliding contact line at the top can be continuously adopted, the height is the same as that of the finished tunnel face at the front end, and the arrangement length of the sliding contact line is up to the position of a tunnel face. The whole trolley line layout mode is combined with practical working conditions and condition limitations, and various arrangement modes are adopted.
The invention also provides a tunnel construction mobile power supply device based on the power supply method, which comprises a support frame arranged in the tunnel inner wall rock tunnel construction direction, wherein a metal support 6 is hung on a top beam 10 of the support frame, a running track 5 is arranged at the bottom of the metal support, a sliding contact wire 7 is arranged at the bottom of the running track, a power taking trolley 4 is hung on the running track, rollers and guide wheels are arranged on the upper surface, the lower surface and the side surface of the power taking trolley, which are in contact with the running track, a current collector is arranged in the power taking trolley, the current collector is connected with a power supply down lead 3, the power supply down lead is provided with a power supply quick plug connector used for being connected with a power supply inlet end in the engineering truck, a traction support is arranged at the bottom of the power taking trolley, the traction support comprises a connecting rod and connecting seats arranged at two ends of the connecting rod through bearings, the top end of the traction support is connected with the power taking trolley through the connecting seats, and the bottom end of the traction support is connected with the top of the engineering truck through the connecting seats.
The support frame adopts a door-shaped structure consisting of a support pillar 8 and a top beam, and the support pillar and the top beam are fixedly connected through a fixing buckle 9.
According to the tunnel construction mobile power supply method and device, safety of the characteristics of the trolley line is utilized, the characteristics of the tunnel in construction are combined, the tunnel excavation is considered to be gradually advanced along with the progress of the project, tunnel equipment fixtures such as two lining trolleys need to be considered, the power supply mode is integrally planned and arranged, power supply of all-line construction vehicles and equipment of the tunnel is achieved, the tunnel construction process is green, environment-friendly and low in noise, and all-line power supply from a tunnel entrance to a tunnel face is achieved.
Claims (10)
1. A tunnel construction mobile power supply method is characterized by comprising the following steps:
s1, arranging a support frame on an unfinished tunnel surface along the tunnel construction direction, and hoisting a metal support (6) on a top beam (10) of the support frame; for the finished tunnel surface, directly installing a metal bracket at the top of the tunnel; arranging a running track (5) at the bottom of the metal bracket, and installing a sliding contact line (7) on the running track;
s2, a traction support (2) is installed at the top of the engineering truck (1), a power taking trolley (4) hung on the running track is fixed at the top of the traction support, a current collector is arranged in the power taking trolley, the current collector is connected with a power down lead (3), and the power down lead is provided with a power quick connector used for being connected with a power inlet end in the engineering truck;
and S3, in the process of advancing of the engineering truck, the traction support pulls the electricity-taking trolley to slide along the running track, the current collector keeps in contact with the sliding contact line in the sliding process to take electricity in real time, and current is led to a power supply inlet end in the engineering truck through the power supply down lead, so that the engineering truck is powered.
2. The tunnel construction mobile power supply method according to claim 1, characterized in that: the trolley lines are safe trolley lines with safe shells, the length of each safe trolley line is 5-7 m, and the safe trolley lines are installed in a step-by-step pushing mode along the tunnel construction direction.
3. The tunnel construction mobile power supply method according to claim 1, characterized in that: the sliding contact line is a three-phase four-wire sliding contact line or a three-phase five-wire sliding contact line, the number of the current collectors is integral multiple of the number of the sliding contact line stages, and the current collectors are connected in parallel by a junction box.
4. The tunnel construction mobile power supply method according to claim 1, characterized in that: the electricity taking trolley is of a U-shaped frame structure, the upper surface, the lower surface and the side surface of the electricity taking trolley, which are in contact with the running track, are provided with the idler wheels and the guide wheels, and when the engineering truck travels along the construction direction, the electricity taking trolley travels smoothly along the running track.
5. The tunnel construction mobile power supply method according to claim 1, characterized in that: the traction support comprises a connecting rod and connecting seats arranged at two ends of the connecting rod through bearings, the top end of the traction support is connected with the power taking trolley through the connecting seats, the bottom end of the traction support is connected with the top of the engineering truck through the connecting seats, and the traction support rotates along with the engineering truck in the process of advancing along the construction direction.
6. The tunnel construction mobile power supply method according to claim 1, characterized in that: the number of the metal supports hung on the top beams of the support frames is two, the metal supports are arranged in parallel along the tunnel construction direction, and power is respectively supplied to the bidirectional engineering vehicles in the tunnel.
7. The tunnel construction mobile power supply method according to claim 1, characterized in that: the support frame adopts a door-shaped structure consisting of a support pillar (8) and a top beam, and the support pillar and the top beam are fixedly connected through a fixing buckle (9).
8. The tunnel construction mobile power supply method according to claim 7, characterized in that: the support frame adopts adjustable support, lays the wiping line according to the tool equipment that the machineshop car will walk: the method comprises the steps of hanging a trolley line with the same length as the tooling equipment in the tooling equipment to be penetrated, adjusting the height of a height-adjustable support in front of and behind the tooling equipment to enable the height of the height-adjustable support to be matched with the height of the tooling equipment, and connecting the trolley line hung on the tooling equipment and the trolley line arranged on a running track by using an arc-shaped trolley line.
9. A tunnel construction mobile power supply device based on the power supply method of claim 1, characterized in that: including metal support (6), orbit (5) have been arranged to metal support's bottom, wiping line (7) are installed to the orbit bottom, it hangs in the orbit to get electric dolly (4), get the higher authority of electric dolly and orbit contact, below and side all are provided with gyro wheel and leading wheel, it is provided with the current collector in the electric dolly to get, the current collector is connected with power downlead (3), power downlead has the power that is used for being connected with the power inlet wire end in the machineshop car, the bottom of getting the electric dolly is equipped with tows the support, tow the support and include the connecting rod and install in the connecting seat at connecting rod both ends through the bearing, the top of towing the support is connected with getting the electric dolly through the connecting seat, the bottom of towing the support is passed through the connecting seat and is connected with the top of machineshop car.
10. The tunnel construction mobile power supply device according to claim 9, characterized in that: the metal support is hung on the top beam of the support frame, the support frame adopts a door-shaped structure consisting of a support pillar (8) and the top beam, and the support pillar and the top beam are fixedly connected through a fixing buckle (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310028818.3A CN115972989A (en) | 2023-01-09 | 2023-01-09 | Tunnel construction mobile power supply method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310028818.3A CN115972989A (en) | 2023-01-09 | 2023-01-09 | Tunnel construction mobile power supply method and device |
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| Publication Number | Publication Date |
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| CN115972989A true CN115972989A (en) | 2023-04-18 |
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| CN202310028818.3A Pending CN115972989A (en) | 2023-01-09 | 2023-01-09 | Tunnel construction mobile power supply method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117698433A (en) * | 2024-02-06 | 2024-03-15 | 保利长大工程有限公司 | Mobile power supply device for tunnel construction |
| CN117698433B (en) * | 2024-02-06 | 2024-05-24 | 保利长大工程有限公司 | Mobile power supply device for tunnel construction |
-
2023
- 2023-01-09 CN CN202310028818.3A patent/CN115972989A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117698433A (en) * | 2024-02-06 | 2024-03-15 | 保利长大工程有限公司 | Mobile power supply device for tunnel construction |
| CN117698433B (en) * | 2024-02-06 | 2024-05-24 | 保利长大工程有限公司 | Mobile power supply device for tunnel construction |
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