CN117791257A - Power supply system of electric construction machinery in hole - Google Patents
Power supply system of electric construction machinery in hole Download PDFInfo
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- CN117791257A CN117791257A CN202311665118.1A CN202311665118A CN117791257A CN 117791257 A CN117791257 A CN 117791257A CN 202311665118 A CN202311665118 A CN 202311665118A CN 117791257 A CN117791257 A CN 117791257A
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- 238000010276 construction Methods 0.000 title claims abstract description 103
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 7
- 239000000725 suspension Substances 0.000 claims abstract description 6
- 230000006698 induction Effects 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 239000003973 paint Substances 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 14
- 229910052799 carbon Inorganic materials 0.000 description 14
- 239000000306 component Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R41/00—Non-rotary current collectors for maintaining contact between moving and stationary parts of an electric circuit
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Abstract
The invention discloses a power supply method of a power supply system of an electric construction machine in a hole, which comprises a power supply mechanism and a power receiving mechanism; the power supply mechanism comprises a power supply line frame arranged in a hole and at least one power supply line arranged above the power supply line along the advancing direction of the electric construction machine, the power supply line is arranged on the power supply line frame through a suspension line, the power receiving mechanism comprises a lifting component arranged at the top of the electric construction machine and a conductive contact belt arranged at the top of the lifting component and used for being contacted with the power supply line, the conductive contact belt is of a bidirectional cambered surface structure with an upward convex center, and when the number of power supply lines above the conductive contact belt is multiple, the height of each power supply line is matched with the cambered surface structure of the upper surface of the conductive contact belt. The system can ensure that the power supply circuit can be contacted with the conductive contact belt under different phase numbers or different tightness degrees, and continuously and effectively supplies power for the electric construction machinery.
Description
Technical Field
The invention is a divisional application of application number 201810650567.1.
The invention relates to the technical field of in-hole construction, in particular to a power supply system of an in-hole electric construction machine.
Background
The construction space of the tunnel room engineering is narrow and airtight, the range of motion of personnel and equipment is small, the number of construction machinery types is various, fuel power is generally adopted, a large amount of waste gas is directly discharged in the tunnel room, the quality of construction environment air is poor, the health and construction efficiency of constructors are affected, and even safety accidents are caused. The ventilation system which is commonly adopted at present has limited improvement on air quality in a hole, but can not radically avoid the problem of harmful gas emission, and the waste gas treatment equipment and the cost are high, so that the technology of the pure self-powered electric construction machinery is still immature. The pantograph of the prior art is not suitable for supplying power to in-tunnel construction machinery, mainly because: the pantograph for supplying power to rail transit such as high-speed rail and subway is mainly suitable for the occasion of a power supply line (high-voltage alternating current power supply, and a loop is formed between a vehicle body and a rail by the power supply line); the pantograph for supplying power to urban electric buses and the like is mainly suitable for occasions of two power supply lines (high-voltage direct current).
If the power is required to be supplied to the construction machinery in the hole, the power supply is applicable to both high-voltage direct current power supply occasions and high-voltage alternating current occasions for universality, and the technical requirements of application are higher. If an alternating current is supplied to an automobile, the power supply lines are three high-voltage phase lines because of no track grounding, and the distances between the road and the power supply lines at the top of the hole are not fixed because of uneven roads in the hole (the distances between the vehicle and the power supply lines are fixed under railway and highway working conditions), so that the pantograph and the three power supply lines are reliably contacted under various working conditions. Because one power supply line is in point contact with the pantograph; when the two power supply lines are contacted with the pantograph, the two power supply lines are in linear contact at two points; when three power supply lines are in contact with the pantograph, three points are surface contact.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a power supply system of an electric construction machine in a hole, which adopts an overhead power supply mechanism to supply power to the electric construction machine in the hole in a mode of matching with a novel power receiving mechanism so as to realize full electric operation of the machine, reduce exhaust emission, improve the quality of working environment in the hole, reduce investment of waste gas treatment equipment and cost, improve the economic benefit of energy utilization, ensure that a power supply circuit can be contacted with a conductive contact belt under different phase numbers or different tightness degrees, and continuously and effectively supply power to the electric construction machine.
In order to achieve the above purpose, the invention adopts the following technical scheme: a power supply system of an electric construction machine in a hole comprises a power supply mechanism and a power receiving mechanism; the power supply mechanism comprises a power supply line frame arranged in a hole and at least one power supply line arranged above the power supply line along the advancing direction of the electric construction machine, the power supply line is arranged on the power supply line frame through a suspension line, the power receiving mechanism comprises a lifting component arranged at the top of the electric construction machine and a conductive contact belt arranged at the top of the lifting component and used for being contacted with the power supply line, the conductive contact belt is of a bidirectional cambered surface structure with an upward convex center, and when the number of power supply lines above the conductive contact belt is multiple, the height of each power supply line is matched with the cambered surface structure of the upper surface of the conductive contact belt.
As a preferred embodiment, the top of the conductive contact strip is provided with an insulating baffle for separating a plurality of power supply lines, and the insulating baffle has an arc structure matched with the conductive contact strip.
As another preferred embodiment, the lifting assembly comprises a base and a scissor type lifting platform arranged on the base, a connecting rod is arranged between the hinging positions of two groups of supporting rods which are opposite to each other at the top of the scissor type lifting platform, a telescopic rod of a driving cylinder of the scissor type lifting platform is connected with the connecting rod, and a high-pressure air tank connected with the driving cylinder is arranged on the base.
As another preferred embodiment, a pair of stabilizing springs are arranged between two ends of the connecting rod and the top of the base, and the telescopic rod of the driving cylinder is connected with the connecting rod through a spherical joint.
As another preferred embodiment, an insulator is provided between the bottom of the base and the top of the electric construction machine.
As another preferable implementation mode, an opening and closing button in signal connection with the high-pressure gas tank is arranged in an operating chamber of the electric construction machine, an inductor in signal connection with the high-pressure gas tank is arranged on the electric construction machine, and an induction pile in signal connection with the inductor is arranged at the inlet of the hole.
As another preferred embodiment, a current collecting head is arranged between the lifting assembly and the conductive contact belt, and a contact display lamp and an alarm device which are in signal connection with the current collecting head are arranged in an operating chamber of the electric construction machine.
As another preferred embodiment, the power supply circuit is painted with a reflective paint, the power supply mechanism is provided with a positioning transmitting device, and a positioning receiving device in signal connection with the positioning transmitting device is arranged in an operating room of the electric construction machine.
The beneficial effects of the invention are as follows:
1. the invention adopts the mode of matching the overhead power supply mechanism with the novel power receiving mechanism to supply power for the construction machinery in the hole so as to realize full electric operation of the machinery and reduce exhaust emission, thereby improving the quality of the working environment in the hole, simultaneously reducing the investment of waste gas treatment equipment and cost and improving the economic benefit of energy utilization.
2. The conductive contact belt adopts the bidirectional cambered surface structure with the raised center, and the heights of the multiphase power supply lines are arranged in a non-coplanar manner which is matched with the multiphase power supply lines, so that the power supply lines can be contacted with the conductive contact belt under different phase numbers or different tightness degrees, and the power supply of the electric construction machinery can be continuously and effectively realized.
3. The conductive materials at the top of the conductive contact strip are insulated by the insulating baffle, and the insulating baffle adopts a downhill arc structure with high middle and low two sides, so that the insulating baffle and a power supply line can be effectively prevented from being damaged in high-speed operation.
4. The lifting component in the power receiving mechanism adopts a vertical lifting structure of the scissor type lifting platform, so that the lifting component is prevented from interfering with a carriage body, an arm lever and the like of the electric construction machine, is not easy to deform and damage, and simultaneously ensures the timely return of the lifting component after being bent and deformed during working by driving a spherical joint and a stable spring at the top end of the cylinder, and ensures long-term, stable and reliable operation of the lifting component; the pneumatic control type driving cylinder enables the contact between the driven mechanism and the power supply circuit to be smoother and quicker.
5. When the electric construction machinery enters and exits the working area, the opening and closing of the driven mechanism can be completed in an automatic induction opening and closing mode, so that the electric construction machinery is high in practicability and high in automation degree.
6. The system is integrated with the current collecting head, and the voltage or current sensing device on the current collecting head monitors whether the power supply circuit is in good contact with the conductive contact belt in real time, and when the power supply is out of phase due to separation, the lifting assembly continuously lifts the height of the conductive contact belt until the conductive contact belt is in good contact, and alarms and prompts in time.
7. The reflective paint is brushed on the power supply line, so that a good running indication effect is achieved; the power supply mechanism is provided with a positioning transmitting device which is matched with a positioning receiving device arranged in the operation room, and the deviation condition of the electric construction machine and the power supply line is displayed on a path display screen in the operation room in real time, so that the construction machine is ensured to run in the range of the power supply line in a counterpoint mode.
8. In the in-tunnel construction period, the power supply mechanism not only provides a driving power supply for the construction machinery, but also charges the storage battery of the construction machinery through the rectifier, the self-contained storage battery can be used for supplying power to the construction machinery under the condition that the external power supply is powered off or leaves a power supply area, the full electric operation of the machinery is ensured, and the vehicle-mounted storage battery can be used for supplying power to other electric construction machinery connected with the power supply mechanism through the power supply system under the condition that the external power supply is powered off.
9. The power supply system provided by the invention can supply power for not only mobile construction machinery, but also various fixed production equipment, lighting equipment, control equipment and the like in the hole, simplifies the laying of a power supply network in the hole, and achieves the purpose of multiple purposes.
10. The power supply system provided by the invention has strong universality, and various cavern construction machines can be applied to the system, so that the application range is wide.
Drawings
FIG. 1 is a front view of an embodiment of the present invention;
FIG. 2 is a side view of an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of detail A in FIG. 1;
FIG. 4 is a schematic view of the structure of detail B in FIG. 2;
FIG. 5 is a schematic view of a contact between a power supply circuit and a conductive contact strip according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another contact form between a power supply line and a conductive contact strip according to an embodiment of the present invention;
FIG. 7 is a schematic view of an insulating barrier according to an embodiment of the present invention;
FIG. 8 is a schematic view of the control panel in the electric construction machine operation room according to the embodiment of the present invention;
reference numerals:
1. the power supply frame, 2, the electric construction machinery, 3, the power supply circuit, 4, a suspension wire, 5, a conductive contact belt, 6, an insulating baffle, 7, a base, 8, a scissor type lifting platform, 9, a supporting rod, 10, a connecting rod, 11, a driving cylinder, 12, a high-pressure gas tank, 13, a gas valve, 14, a stabilizing spring, 15, a spherical joint, 16, an insulator, 17, an opening and closing button, 18, an inductor, 19, a current collecting head, 20, a contact display lamp, 21, an alarm device, 22, a positioning transmitting device, 23, a positioning receiving device, 24 and a path display screen.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
The three-phase alternating current mode is selected for illustration in this embodiment, and a direct current power supply mode may be adopted in specific applications.
As shown in fig. 1 to 4, the power supply system of the electric construction machine in the hole comprises a power supply mechanism and a power receiving mechanism; the power supply mechanism comprises a power supply line frame 1 erected in a hole and at least one power supply line 3 arranged above the power supply line frame 1 along the travelling direction of the electric construction machine 2, the power supply line 3 is arranged on the power supply line frame 1 through a suspension line 4, the power receiving mechanism comprises a lifting component arranged at the top of the electric construction machine 2 and a conductive contact belt 5 arranged at the top of the lifting component and used for being contacted with the power supply line 3, the conductive contact belt 5 is of a bidirectional cambered surface structure with an upward bulge at the center, and when the number of the power supply lines 3 above the conductive contact belt 5 is multiple, the height of each of the power supply lines 3 is matched with the cambered surface structure of the upper surface of the conductive contact belt 5.
The power supply mechanism is characterized in that the power supply line 3 is arranged on the power supply line frame 1 above the travelling line of the electric construction machine 2 through the suspension line 4, and independent power supply lines 3 can be respectively arranged in the inlet direction and the outlet direction of the electric construction machine 2, and only one direction of the power supply line 3 can be arranged. The power supply line 3 may be powered by attaching a flexible cable to a rigid metal base (an insulating layer is added between a wire and the rigid metal base to avoid electrification of the rigid metal base), or the like. The lifting of the lifting assembly is controlled to enable the conductive contact strip 5 to be in contact with the power supply line 3, the surface of the conductive contact strip 5 is made of easily conductive substances such as carbon sliders, a bidirectional cambered surface structure with an upward bulge is arranged in the center, namely, the carbon sliders are arranged at the top, the front side and the rear side of the contact of the power supply line 3 and the conductive contact strip 5, reasonable and reliable contact of the power supply line 3 in different tightness degrees can be ensured, and the carbon sliders and the conductive contact strip 5 are structurally arranged to be detachable structures, so that the conductive contact strip is convenient to replace. The carbon sliders on the surface of the conductive contact strip 5 are combined in different numbers according to the number of phases of the power supply line 3. In the embodiment, the three-way power supply circuit 3 is formed by combining three carbon sliders on the surface of the conductive contact strip 5 into a whole.
The specific working principle is as follows: because the conductive contact strip 5 needs to keep good contact with the three-phase power supply line 3, and the tightness degree of each power supply line 3 is different, the conductive contact strip 5 is in surface contact (three-point surface) with the three-phase power supply line 3, and the guarantee difficulty is very high. However, the conductive contact strip 5 is a bidirectional cambered surface structure, and the height of each of the plurality of power supply lines 3 is matched with the cambered surface structure of the upper surface of the conductive contact strip 5, so that the three-phase power supply line 3 is in an arch structure with a high middle one-phase power supply line 3 and a low two-phase power supply line 3 on two sides, which is very beneficial to the effective contact between the power supply line 3 and the conductive contact strip 5. When the middle one-phase power supply line 3 is loose and the two-phase power supply lines 3 on two sides are tight (as shown in fig. 5), the conductive contact strip 5 is contacted with the three-phase power supply line 3, and when the electric construction machine 2 advances at the moment, the middle one-phase loose power supply line 3 is contacted with the carbon slide block on the front side of the conductive contact strip 5, and the two-phase power supply lines 3 on two sides are contacted with the carbon slide block on the top of the conductive contact strip 5; when the electric construction machine 2 retreats, the middle loose power supply line 3 is contacted with the carbon slide block at the rear side of the conductive contact belt 5, and the two sides of the loose power supply line 3 are contacted with the carbon slide block at the top of the conductive contact belt 5. When the middle one-phase power supply line 3 is tighter and the two-phase power supply lines 3 on the two sides are looser (as shown in fig. 6), the conductive contact strip 5 is contacted with the three-phase power supply line 3, and when the electric construction machine 2 advances at the moment, the middle one-phase tighter power supply line 3 is contacted with the carbon slide block at the top of the conductive contact strip 5, and the two-phase power supply lines 3 on the two sides are contacted with the carbon slide block at the front side of the conductive contact strip 5; when the electric construction machine 2 retreats, the power supply circuit 3 with the middle being relatively tight contacts with the carbon sliding block at the top of the conductive contact belt 5, and the two-phase power supply circuit 3 with the two relatively loose sides contacts with the carbon sliding block at the rear side of the conductive contact belt 5.
In this embodiment, as shown in fig. 3, 4 and 7, an insulating blocking piece 6 for separating the three-phase power supply line 3 is disposed on the top of the conductive contact strip 5, and the insulating blocking piece 6 has an arc structure matched with the conductive contact strip 5. The insulating separation blades 6 are used for spacing and insulating between the three carbon sliding blocks at the top of the conductive contact strip 5, short circuit can be effectively avoided, the insulating separation blades 6 are arc structures matched with the conductive contact strip 5, and the insulating separation blades 6 are in a downhill shape with high middle and low two sides, so that the insulating separation blades 6 and the power supply line 3 are prevented from being scratched when the electric construction machine 2 enters the range of the power supply line 3 from a non-power receiving range, and the power supply line 3 or the insulating separation blades 6 are damaged.
In this embodiment, as shown in fig. 3 and fig. 4, the lifting assembly includes a base 7 and a scissor lift platform 8 disposed on the base 7, a connecting rod 10 is disposed between the hinge points of two sets of support rods 9 opposite to the top of the scissor lift platform 8, a telescopic rod of a driving cylinder 11 of the scissor lift platform 8 is connected with the connecting rod 10, and a high-pressure gas tank 12 connected with the driving cylinder 11 is disposed on the base 7.
Lifting assembly theory of operation: the high-pressure air tank 12 releases high-pressure air into the driving air cylinder 11 through the air valve 13, the driving air cylinder 11 rapidly acts to drive the scissor type lifting platform 8 to stably and rapidly lift until the three-phase power supply line 3 and the conductive contact belt 5 are completely contacted and then stop lifting, and vice versa; the scissor lift platform 8 is selected as a core component of the lift assembly, and the lift mode of the scissor lift platform 8 is vertical lift, which has the following advantages over forward lift or backward lift: the interference caused by collision between the power receiving mechanism and parts (such as a rear carriage body, a back shovel arm rod and the like) on the electric construction machine 2 can be avoided; the road surface is comparatively jolt in the hole, can avoid lifting unit to warp the damage, has prolonged its life.
In this embodiment, a pair of stabilizing springs 14 are disposed between two ends of the connecting rod 10 and the top of the base 7, and the telescopic rod of the driving cylinder 11 is connected with the connecting rod 10 through a spherical joint 15.
The stabilizing spring 14 cooperates with the supporting rod 9 of the scissor lift platform 8 to ensure the stability of the powered mechanism, so that the power supply line 3 continuously supplies power to the electric construction machine 2. The electric construction machine 2 vibrates more during the fast traveling process, and the road surface jolts, the friction force between the conductive contact strip 5 and the power supply line 3 is larger, and the lifting assembly is bent, and although the bending effect is smaller than the forward lifting or backward lifting type lifting assembly, the stabilizing spring 14 is added to avoid the deformation of the lifting assembly caused by long-term effect. The specific working principle of the stabilizing spring 14 is: when the lifting assembly is bent in one direction, the stabilizing spring 14 on the other side is stressed and stretched, so that on one hand, the bending amount of the lifting assembly is reduced, on the other hand, the lifting assembly is helped to return rapidly when the conductive contact strip 5 is out of contact with the power supply circuit 3, and in addition, deformation influence on the driving cylinder 11 is avoided by coaction with the spherical joint 15 of the lifting rod of the driving cylinder 11 (when the lifting assembly is deformed and bent, only the spherical joint 15 is deformed in a rotating way, and the driving cylinder 11 is not deformed).
In this embodiment, as shown in fig. 3 and 4, in order to avoid electric leakage and ensure the safety of construction, an insulator 16 is provided between the bottom of the base 7 and the top of the electric construction machine 2.
In this embodiment, as shown in fig. 2 and 4, an on-off button 17 in signal connection with the high-pressure gas tank 12 is disposed in an operation chamber of the electric construction machine 2, an inductor 18 in signal connection with the high-pressure gas tank 12 is mounted on the electric construction machine 2, and an induction pile in signal connection with the inductor 18 is mounted at an inlet of the hole.
When the electric construction machine 2 enters the cavity, the electric construction machine can be powered by adopting an automatic mode or a manual mode: automatic power receiving mode: the electric construction machine 2 is mutually induced by an inductor 18 arranged on the electric construction machine and an induction pile arranged near the entrance of the hole, so that the high-pressure gas tank 12 is driven to release high-pressure gas to the driving cylinder 11 through the gas valve 13 to drive the lifting assembly to rise, and the conductive contact belt 5 is contacted with the power supply line 3 and then is electrified; manual power receiving mode: the high-pressure gas tank 12 releases high-pressure gas to the driving cylinder 11 through the gas valve 13 by the opening and closing button 17 in the operating room of the electric construction machine 2 to drive the lifting assembly to rise so that the conductive contact belt 5 is contacted with the power supply line 3 and then receives power.
In this embodiment, as shown in fig. 3, 4 and 8, a current collecting head 19 is disposed between the lifting assembly and the conductive contact strip 5, and a contact display lamp 20 and an alarm device 21 that are in signal connection with the current collecting head 19 are disposed in an operation chamber of the electric construction machine 2.
The contact indicator lamp 20 in the operation room of the electric construction machine 2 will indicate whether the conductive contact strip 5 is in normal contact with the power supply line 3 (the principle is that the system judges whether the conductive contact strip 5 is in good contact with the power supply line 3 by supplying power to each phase or not). Before the conductive contact strip 5 is not lifted to a predetermined height to be in proper contact with the power supply line 3, or when the conductive contact strip 5 is out of contact with the power supply line 3 due to uneven ground, jolt or the like, a voltage or current sensing device arranged on the current collecting head 19 between the lifting assembly and the conductive contact strip 5 senses that the power supply is out of phase. When the conductive contact strip 5 is out of contact with the power supply line 3 abnormally, the alarm device 21 can automatically alarm, and a voice alarm module can be arranged specifically, and the lifting assembly can work immediately at the moment, so that the conductive contact strip 5 and the power supply line 3 are ensured to be in quick contact recovery.
In this embodiment, as shown in fig. 1 and 8, the power supply line 3 is painted with a reflective paint, the power supply mechanism is provided with a positioning transmitting device 22, and the operating room of the electric construction machine 2 is provided with a positioning receiving device 23 connected with the positioning transmitting device 22 in a signal manner.
Applying a reflective paint on the power supply line 3 to instruct the driver to travel on the line; the positioning transmitting device 22 can also be arranged on the power supply mechanism to be matched with the positioning receiving device 23 arranged in the operation room, and the deviation condition of the electric construction machine 2 and the power supply line 3 can be displayed on the path display screen 24 in the operation room in real time, so that the construction machine 2 can be ensured to run in alignment within the range of the power supply line 3.
It should be noted that: during in-tunnel construction, the power supply mechanism not only provides a driving power supply for the electric construction machine 2, but also rectifies net supply alternating current into direct current through the rectifier to charge a storage battery of the electric construction machine 2, the electric construction machine 2 is driven out of a tunnel or to a tunnel section without the power supply mechanism, the power receiving mechanism is automatically retracted and leveled through an on-off button 17 or an induction pile through the tunnel opening, interference is avoided, meanwhile, the storage battery supplies power for the electric construction machine 2 to realize full-electric operation, or under the condition that an external power supply is powered off, a vehicle-mounted storage battery can be used for supplying power for other electric construction machines 2 connected with the power supply mechanism through a power supply system; in addition, the driving cylinder 11 preferably adopts a dry gas medium, so that the conduction of liquid or non-dry gas is avoided; the electric construction machine 2 is contacted with the ground by adopting a conductive braid to form a grounding structure; along with the promotion of the tunneling construction in the tunnel, the power supply line 3 needs to be connected continuously, and the newly connected power supply line is connected with the original power supply line 3 in a mode of gram and the like.
The foregoing examples merely illustrate specific embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (9)
1. The power supply method of the power supply system of the electric construction machinery in the hole is characterized in that the power supply system comprises a power supply mechanism and a power receiving mechanism; the power supply mechanism comprises a power supply line frame erected in a hole and at least one power supply line arranged above the power supply line frame along the advancing direction of the electric construction machine, the power supply line is arranged on the power supply line frame through a suspension line, the power receiving mechanism comprises a lifting component arranged at the top of the electric construction machine and a conductive contact belt arranged at the top of the lifting component and used for being in contact with the power supply line, the conductive contact belt is a bidirectional cambered surface structure with an upward bulge at the center, and when the number of the power supply lines above the conductive contact belt is multiple, the arranged height of each of the power supply lines is matched with the cambered surface structure of the upper surface of the conductive contact belt;
the power supply method of the power supply system comprises the following steps:
the electric construction machine (2) enters the cavity and is powered by adopting an automatic mode or a manual mode:
automatic power receiving mode: the electric construction machine (2) is mutually induced by an inductor (18) arranged on the electric construction machine and an induction pile arranged near the entrance of the hole, so that the high-pressure gas tank (12) is driven to release high-pressure gas to the driving gas cylinder (11) through the gas valve (13) to drive the lifting assembly to rise, and the conductive contact belt (5) is contacted with the power supply circuit (3) and then receives power;
manual power receiving mode: the high-pressure gas tank (12) releases high-pressure gas to the driving cylinder (11) through the gas valve (13) to drive the lifting assembly to lift through the opening and closing button (17) in the operating chamber of the electric construction machine (2), so that the conductive contact belt (5) is contacted with the power supply circuit (3) and then receives power.
2. A power supply method of a power supply system of an in-hole electric construction machine according to claim 1, characterized in that:
in the construction period in the hole, the power supply mechanism not only provides a driving power supply for the electric construction machine (2), but also rectifies net supply alternating current into direct current through the rectifier to charge a storage battery of the electric construction machine (2), the electric construction machine (2) is driven out of a hole room or is driven to a hole section without the power supply mechanism, the power receiving mechanism is folded and leveled manually through a start-stop button (17) or automatically through an induction pile at the hole, and meanwhile the storage battery supplies power for the electric construction machine (2) to realize full-electric operation, or under the condition that an external power supply is powered off, the vehicle-mounted storage battery can be used for supplying power for other electric construction machines (2) connected with the power supply mechanism through the power supply system.
3. The power supply method of the power supply system of the electric construction machine in the hole according to claim 1, wherein the top of the conductive contact strip is provided with an insulating baffle for separating a plurality of power supply lines, and the insulating baffle has an arc structure matched with the conductive contact strip.
4. The power supply method of the power supply system of the electric construction machine in the hole according to claim 1, wherein the lifting component comprises a base and a scissor type lifting platform arranged on the base, a connecting rod is arranged between the hinging positions of two groups of supporting rods which are opposite to each other at the topmost part of the scissor type lifting platform, a telescopic rod of a driving cylinder of the scissor type lifting platform is connected with the connecting rod, and a high-pressure air tank connected with the driving cylinder is arranged on the base.
5. The power supply method of the power supply system of the electric construction machine in the hole according to claim 4, wherein a pair of stabilizing springs are provided between both ends of the link rod and the top of the base, and the telescopic rod of the driving cylinder is connected with the link rod through a spherical joint.
6. A method of supplying power to a power supply system of an in-tunnel electric construction machine according to claim 5, wherein an insulator is provided between the bottom of the base and the top of the electric construction machine.
7. The method for supplying power to a power supply system of an electric construction machine in a tunnel according to claim 4, wherein an on-off button in signal connection with the high pressure gas tank is provided in an operation chamber of the electric construction machine, an inductor in signal connection with the high pressure gas tank is installed on the electric construction machine, and an induction pile in signal connection with the inductor is installed at an inlet of the tunnel opening.
8. A method of supplying power to a power supply system of an in-tunnel electric construction machine according to claim 1, wherein a header is provided between the lifting assembly and the conductive contact strip, and a contact indicator light and an alarm device are provided in an operating chamber of the electric construction machine in signal connection with the header.
9. The method for supplying power to a power supply system of an electric construction machine in a hole according to claim 1, wherein the power supply line is painted with a reflective paint, the power supply mechanism is provided with a positioning transmitting device, and a positioning receiving device in signal connection with the positioning transmitting device is provided in an operation room of the electric construction machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311665118.1A CN117791257A (en) | 2018-06-22 | 2018-06-22 | Power supply system of electric construction machinery in hole |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311665118.1A CN117791257A (en) | 2018-06-22 | 2018-06-22 | Power supply system of electric construction machinery in hole |
| CN201810650567.1A CN108808403B (en) | 2018-06-22 | 2018-06-22 | Power supply system of electric construction machinery in hole |
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| CN201810650567.1A Division CN108808403B (en) | 2018-06-22 | 2018-06-22 | Power supply system of electric construction machinery in hole |
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| CN117791257A true CN117791257A (en) | 2024-03-29 |
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| CN202311665118.1A Pending CN117791257A (en) | 2018-06-22 | 2018-06-22 | Power supply system of electric construction machinery in hole |
| CN201810650567.1A Active CN108808403B (en) | 2018-06-22 | 2018-06-22 | Power supply system of electric construction machinery in hole |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810650567.1A Active CN108808403B (en) | 2018-06-22 | 2018-06-22 | Power supply system of electric construction machinery in hole |
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| CN115579703B (en) * | 2022-11-21 | 2023-03-24 | 广东电网有限责任公司佛山供电局 | Grounding wire assembling and disassembling device |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT327289B (en) * | 1971-09-08 | 1976-01-26 | Siemens Ag Oesterreich | RAIL VEHICLE WITH A SHEAR COLLECTOR |
| FR2657570B1 (en) * | 1990-01-26 | 1992-10-02 | Faiveley Transport | PANTOGRAPH WITH TWO CONJUGATED HEADS FOR RAILWAY DRIVES. |
| JPH05168101A (en) * | 1991-12-10 | 1993-07-02 | Hitachi Cable Ltd | Current collector |
| CN1273322C (en) * | 2003-08-12 | 2006-09-06 | 上海交通大学 | Double-wire powering trolleybus pantograph |
| CN1562659A (en) * | 2004-04-13 | 2005-01-12 | 刘平 | Method for accepting electricity through linear erected contact wire of electric railways |
| CN1292936C (en) * | 2004-06-14 | 2007-01-03 | 刘平 | Method for linear establishing and collecting power of electric rail vehicles |
| GB2475703A (en) * | 2009-11-26 | 2011-06-01 | Sylvan Ascent Inc | Electric vehicle charging station and charge receiving arrangement for a vehicle |
| JP5679848B2 (en) * | 2011-02-04 | 2015-03-04 | 公益財団法人鉄道総合技術研究所 | Pantograph with lift adjustment member |
| CN102303534A (en) * | 2011-06-27 | 2012-01-04 | 叶林森 | Free running system for trolley bus |
| DE102012202955A1 (en) * | 2012-02-27 | 2013-08-29 | Schunk Bahn- Und Industrietechnik Gmbh | Power transmission device for charging electrical energy storage of vehicles at overhead charging stations |
| CN104325888B (en) * | 2014-09-26 | 2016-06-08 | 株洲市有博数码电气有限公司 | A kind of intelligent current collecting system |
| CN204568043U (en) * | 2015-02-02 | 2015-08-19 | 王友准 | Adopt electrical motor and ICE-powered novel ship transport systems |
| CN104901382B (en) * | 2015-06-16 | 2018-08-03 | 中车株洲电力机车有限公司 | A kind of charging system |
| CN205149548U (en) * | 2015-12-02 | 2016-04-13 | 洛阳市科佳电气设备有限公司 | Formula pantograph is cut to electronic bus |
| CN208423411U (en) * | 2018-06-22 | 2019-01-22 | 中国三峡建设管理有限公司 | The power supply system of electronic construction machinery in a kind of hole |
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2018
- 2018-06-22 CN CN202311665118.1A patent/CN117791257A/en active Pending
- 2018-06-22 CN CN201810650567.1A patent/CN108808403B/en active Active
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| CN108808403A (en) | 2018-11-13 |
| CN108808403B (en) | 2023-11-24 |
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