CN110380359B - Railway vehicle for subway cable laying - Google Patents
Railway vehicle for subway cable laying Download PDFInfo
- Publication number
- CN110380359B CN110380359B CN201910615341.2A CN201910615341A CN110380359B CN 110380359 B CN110380359 B CN 110380359B CN 201910615341 A CN201910615341 A CN 201910615341A CN 110380359 B CN110380359 B CN 110380359B
- Authority
- CN
- China
- Prior art keywords
- cable
- pay
- arm
- driving
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000004146 energy storage Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 20
- 238000012360 testing method Methods 0.000 description 14
- 230000007246 mechanism Effects 0.000 description 10
- 239000010720 hydraulic oil Substances 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Abstract
The invention discloses a rail car for laying subway cables, which comprises a rail car body, wherein a cable drum, a drum driving system, a pay-off arm and a pay-off arm driving system are arranged on the rail car body, the drum driving system is used for driving the cable drum to rotate, the pay-off arm driving system is used for driving the pay-off arm to lift and rotate, the drum driving system and the pay-off arm driving system are both electrohydraulic driving systems, an energy accumulator is arranged in the electrohydraulic driving system, and the energy accumulator is connected with a pipeline at the outlet end of a hydraulic pump in the electrohydraulic driving system: the accumulator may store pressure energy from the hydraulic pump when the hydraulic pump is operating, and the accumulator may release energy to an actuator in the electro-hydraulic drive system. The structural design of the railway vehicle is convenient for matching the power required by cable laying.
Description
Technical Field
The invention relates to the technical field of cable wiring equipment, in particular to a rail car for subway cable laying.
Background
In order to ensure normal power supply in the subway, cabling is required in a tunnel in the subway section, and the cables generally extend along the extending direction of the tunnel. In order to improve the wiring efficiency of the cable and reduce the labor intensity of wiring, in the prior art, a rail car capable of moving along a track in a tunnel is generally adopted as a carrier of the cable laying equipment, namely, the rail car releases the cable to a cable bracket through a paying-off device on the rail car in the moving process along the track. A paying-off arm and a wire coil are installed on an existing railway car, a motor drives the wire coil to pay off, and then the paying-off arm is adjusted manually, so that a cable is placed on a cable support.
The existing railway vehicle for cable laying has the following problems in use:
(1) Since the number of the wire coils is generally 3, the weight can reach 8-9 tons. When the wire coil is not matched with the vehicle speed, the cable is too tight or too loose, particularly when the wire coil turns, the paying-off efficiency is very low, and the cable is easy to damage.
(2) The length of the pay-off arm is generally 3 meters, the weight is about 1.5 tons, and the labor intensity is high when the pay-off arm is manually adjusted to adapt to the turning curvature radius of the tunnel through the height and the gesture.
(3) In order to meet the driving requirement of the wire coil, the corresponding driving component is complex in structure and large in size, so that the whole weight of the rail car is large.
The structural design of the railcar for cable laying is further optimized, so that the railcar can be more conveniently applied to subway tunnel construction, and the railcar is a technical problem to be solved urgently by the technicians in the field.
Disclosure of Invention
Aiming at the technical problem that the structural design of the railway vehicle for cable laying is further optimized so that the railway vehicle can be more conveniently applied to subway tunnel construction, the invention provides the railway vehicle for subway cable laying. The structural design of the railway vehicle is convenient for matching the power required by cable laying.
Aiming at the problems, the rail car for subway cable laying provided by the invention solves the problems through the following technical points: the utility model provides a railcar for subway cable lays, includes the railcar body, be provided with cable drum, drum actuating system, pay off arm and pay off arm actuating system on the railcar body, drum actuating system is used for driving cable drum and rotates, pay off arm actuating system is used for driving the pay off arm and goes up and down and rotate, drum actuating system and pay off arm actuating system are electrohydraulic actuating system, and are provided with the energy storage ware in the electrohydraulic actuating system, the pipeline piping connection of hydraulic pump exit end in energy storage ware and the electrohydraulic actuating system: the accumulator may store pressure energy from the hydraulic pump when the hydraulic pump is operating, and the accumulator may release energy to an actuator in the electro-hydraulic drive system.
In the prior art, aiming at the railcar for subway cable laying, a corresponding wire coil driving system generally adopts a wire coil motor driving scheme, and because the cable wire coil is heavy and has a large number, the power of the required cable motor is larger, and a speed reducer is arranged at the output end of the wire coil motor for matching the driving torque required by the cable wire coil, but considering the volume of the wire coil motor, the power of the wire coil motor does not have more margin in general, namely, when the load is larger, the cable laying is generally completed by a mode of slowing down the paying-off speed. When the subway tunnel turns, the rotation speed of the cable drum is difficult to adjust by directly driving the cable drum through the drum motor, so that the cable is easily damaged or the laying quality is poor when the tunnel turns because the running speed of the railway car and the paying-off speed of the cable are matched to maintain the tension of the cable.
In the prior art, aiming at an electrohydraulic driving system, the electrohydraulic driving system is generally arranged to comprise an oil way, an oil tank, a motor, a hydraulic pump, an actuating mechanism which is a hydraulic motor or a hydraulic cylinder, a valve and the like, wherein the motor is used for driving the hydraulic pump to work so as to obtain pressurized hydraulic oil, the valve comprises an overflow valve, a one-way valve, a reversing valve, a switching valve and the like, and the oil tank is used for storing the hydraulic oil to be sucked into the oil way and storing the hydraulic oil discharged from the oil way.
In this scheme, set up to: the wire coil driving system and the pay-off arm driving system are both electrohydraulic driving systems, an energy accumulator is arranged in the electrohydraulic driving systems, and the energy accumulator is connected with a pipeline at the outlet end of a hydraulic pump in the electrohydraulic driving system: the accumulator may store pressure energy from the hydraulic pump when the hydraulic pump is operating, and the accumulator may release energy to an actuator in the electro-hydraulic drive system. When the hydraulic pump is particularly used, the hydraulic pump is driven to work by the motor in the smooth cable laying process or when no cable is laid, and the energy accumulator stores the pressure energy output by the hydraulic pump; when the cable drum needs to be changed in speed to adapt to the travelling speed of the rail car body, under the condition that the working state of a motor is unchanged, the working state of the electro-hydraulic driving system is adjusted by utilizing a corresponding valve in the electro-hydraulic driving system, for example, when the cable drum needs to rotate in a decelerating way, the pressure energy output by the hydraulic pump, the opening adjustment of an overflow valve in an oil way, the displacement change of a hydraulic motor serving as an actuating mechanism and the like are stored through an energy accumulator, so that the cable drum rotates in a decelerating way. When the cable drum needs to rotate in an accelerating way, hydraulic oil stored in the energy accumulator outputs energy to the actuating mechanism through the oil way so as to drive the cable drum to rotate in an accelerating way.
As described above, the scheme utilizes the electrohydraulic driving system to drive the corresponding paying-off arm and the cable spool on the railway vehicle to move, and utilizes the characteristic that the working parameters of the electrohydraulic driving system are easy to adjust, so that the paying-off arm and the cable spool can be controlled in a higher precision and with a faster response; meanwhile, the energy accumulator is arranged, and the energy output by the energy accumulator can be utilized to make up the deficiency of the power of the motor according to the drive power abrupt change requirement. Finally, the aim of conveniently matching the power required by the cable laying is fulfilled.
When the railway vehicle works, the cable drum rotates, and the paying-off arm needs to rotate and lift according to the paying-off arm, so that the driving mechanism serving as the paying-off arm preferably comprises a hydraulic cylinder and a hydraulic motor, and the driving mechanism of the cable drum comprises the hydraulic motor.
The further technical scheme is as follows:
For the tension on the convenient real-time supervision cable, set up to: the tension measuring device is arranged on the cable transmission path and is used for measuring the tension of the cable in the laying process. In this scheme, tension measuring device can adopt tension test dish, and the cable of waiting to export is tension test dish's side again around and contact tension test dish's side, simultaneously along the radial direction extrusion tension test dish of contact point can.
As another technical solution for indirectly obtaining the tension on the cable, it is provided that: the electrohydraulic driving system comprises a first hydraulic motor for driving the cable drum to rotate, and a torque sensor is connected in series on a transmission shaft between the first hydraulic motor and the cable drum. In the scheme, the torque of the first hydraulic motor is obtained through the torque sensor, and the measured value can be converted into the cable tension through calculation.
Because cable tension is one of the important control parameters of subway cable laying, for conveniently realizing automatic control of cable tension, set up to: the constant tension control module is used for realizing tension stability control on the cable and comprises a calculation module, and the calculation module is used for controlling actual working parameters of the electrohydraulic driving system according to actual tension values on the cable. Specifically, when the subway cable is laid, three strands of cables are generally arranged, for example, after the three strands of cables are automatically bound by a wire binding machine, the three strands of cables are output to a tension test disc, a measured tension signal is sent to a calculation module by the tension test disc, the calculation module converts, analyzes and processes the signal, then sends out a control signal, adjusts the opening of a proportional overflow valve used for controlling the first hydraulic motor to work in an electrohydraulic driving system, and controls the pressure at two ends of the quantitative motor aiming at the first hydraulic motor which is a quantitative motor, so that the output torque of the first hydraulic motor is adjusted. According to the scheme, the needed tension value is input into the constant tension control system before paying-off operation, the proportional overflow valve has an opening according to the preset tension value, the output torque of the first hydraulic motor is controlled, and tension paying-off is controlled. More specifically: the tension sensor is arranged on the tension test disc, the collected actual tension forms closed loop control through feedback, and the closed loop control is compared with the set tension, so that the opening degree of the proportional overflow valve is controlled to keep the output torque of the low speed and the large torque consistent with the set tension. Equivalently, the rotational speed of the cable drum can be controlled based on speed feedback: the speed sensor is used for collecting speed signals, the displacement of the variable motor is controlled through feedback, the rotating speed of the wire coil is automatically matched to be synchronous with the speed of the vehicle, and the first hydraulic motor is the variable motor under the condition.
As a specific implementation scheme of the pay-off arm driving system, the method comprises the following steps: the pay-off arm driving system comprises a hydraulic cylinder, a pay-off arm rotary table and a second hydraulic motor, the pay-off arm is rotatably connected with the railcar body through the pay-off arm rotary table, the hydraulic cylinder is used for driving the pay-off arm to lift, and the second hydraulic motor is used for driving the pay-off arm rotary table to rotate. As a person skilled in the art, when the hydraulic cylinder is specifically used, the hydraulic cylinder can be arranged to drive the paying-off end of the paying-off arm to ascend or descend, and can also be used to drive the paying-off arm to ascend and descend integrally.
As described above, since the existing pay-off arm for subway cable laying is very large in mass, such as 2-3 tons in general, in order to avoid a great waste of energy when the pay-off arm is lowered, it is set to: when the hydraulic cylinder acts to enable the pay-off arm to descend, the energy accumulator stores energy through an oil way connected with the hydraulic cylinder.
As a technical scheme for controlling rotation of the pay-off arm by controlling the displacement, the device is as follows: the second hydraulic motor is a variable displacement motor.
As described above, since the cable generally includes a plurality of strands, in order to achieve synchronous laying of the plurality of strands of the cable, it is provided that: the wire binding machine is arranged on the cable transmission path.
In order to simplify the railcar structure, set up to: the wire coil driving system and the pay-off arm driving system share the same set of electrohydraulic driving system.
For realizing energy storage when energy storage ware needs and utilizing the entry to put liquid, reduce the impact of this system during operation, improve house grandpa proportion, improve the energy utilization rate, set up to: and a switching valve is also connected in series on a pipeline between the pipeline at the outlet end of the hydraulic pump and the energy accumulator.
The invention has the following beneficial effects:
As described above, the scheme utilizes the electrohydraulic driving system to drive the corresponding paying-off arm and the cable spool on the railway vehicle to move, and utilizes the characteristic that the working parameters of the electrohydraulic driving system are easy to adjust, so that the paying-off arm and the cable spool can be controlled in a higher precision and with a faster response; meanwhile, the energy accumulator is arranged, and the energy output by the energy accumulator can be utilized to make up the deficiency of the power of the motor according to the drive power abrupt change requirement. Finally, the aim of conveniently matching the power required by the cable laying is fulfilled.
Drawings
FIG. 1 is a schematic view of a railcar for subway cable laying according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an electro-hydraulic drive system in one embodiment of a railcar for subway cabling according to the present invention;
Fig. 3 is a schematic diagram of constant tension control in an embodiment of a railcar for use in subway cabling according to the present invention.
The labels in the figure are respectively: 1. the motor, 2, the hydraulic pump, 3, the first check valve, 4, the first overflow valve, 5, the second check valve, 6, the first oil tank, 7, the first hydraulic motor, 8, the torque sensor, 9, the first reduction gearbox, 10, the cable, 11, the fifth switching valve, 12, the third check valve, 13, the first switching valve, 14, the second switching valve, 15, the second overflow valve, 16, the second oil tank, 17, the accumulator, 18, the hydraulic cylinder, 19, the throttle valve, 20, the first switching valve, 21, the fourth check valve, 22, the first proportional overflow valve, 23, the second proportional overflow valve, 24, the third switching valve, 25, the fourth switching valve, 26, the third oil tank, 27, the fourth oil tank, 28, the second switching valve, 29, the second hydraulic motor, 30, the second reduction gearbox, 31, the arm turntable, 32, the tension measuring device, 33, the pay-off arm pose controller, 34, the drive system, 35, the cable drum, 36, the wire drum body, 37, the wire drum body, the pay-off arm, the drum body, 38, the pay-off arm.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples:
Example 1:
As shown in fig. 1 and fig. 2, a railcar for laying subway cables comprises a railcar body 37, wherein a cable drum 35, a drum driving system 34, a pay-off arm and a pay-off arm driving system are arranged on the railcar body 37, the drum driving system 34 is used for driving the cable drum 35 to rotate, the pay-off arm driving system is used for driving the pay-off arm to lift and rotate, the drum driving system 34 and the pay-off arm driving system are all electrohydraulic driving systems, an energy accumulator 17 is arranged in the electrohydraulic driving system, and the energy accumulator 17 is connected with a pipeline at the outlet end of a hydraulic pump 2 in the electrohydraulic driving system: during operation of the hydraulic pump 2, the accumulator 17 may store pressure energy from the hydraulic pump 2, and the accumulator 17 may release energy to an actuator in the electro-hydraulic drive system.
In the prior art, for a railcar for subway cable laying, the corresponding wire coil driving system 34 generally adopts a wire coil motor driving scheme, because the cable coil 35 has large weight and large number, the required power of the cable motor 1 is larger, and a speed reducer is arranged at the output end of the wire coil motor for matching the driving torque required by the cable coil 35, but considering the volume of the wire coil motor, the power of the wire coil motor does not have more margin in general, namely, when the load is larger, the cable laying is generally completed by slowing down the paying-off speed. When the subway tunnel turns, the rotation speed of the cable drum 35 is difficult to adjust by directly driving the cable drum 35 through the drum motor, so that the cable is easily damaged or the laying quality is poor when the tunnel turns because the running speed of the railway car and the paying-off speed of the cable are matched to maintain the tension of the cable.
In the prior art, for an electro-hydraulic driving system, the electro-hydraulic driving system is generally configured to include an oil path, an oil tank, an electric motor 1, a hydraulic pump 2, an actuating mechanism which is a hydraulic motor or a hydraulic cylinder 18, a valve, and the like, wherein the electric motor 1 is used for driving the hydraulic pump 2 to work so as to obtain pressurized hydraulic oil, the valve includes an overflow valve, a one-way valve, a reversing valve, a switching valve, and the like, and the oil tank is used for storing the hydraulic oil to be sucked into the oil path and storing the hydraulic oil discharged from the oil path.
In this scheme, set up to: the wire coil driving system 34 and the pay-off arm driving system are both electrohydraulic driving systems, an energy accumulator 17 is arranged in the electrohydraulic driving system, and the energy accumulator 17 is connected with a pipeline at the outlet end of the hydraulic pump 2 in the electrohydraulic driving system: during operation of the hydraulic pump 2, the accumulator 17 may store pressure energy from the hydraulic pump 2, and the accumulator 17 may release energy to an actuator in the electro-hydraulic drive system. In specific application, the motor 1 drives the hydraulic pump 2 to work during smooth cable laying or when no cable laying is performed, and the accumulator 17 stores pressure energy output by the hydraulic pump 2; when the cable drum 35 needs to be changed in speed to adapt to the travelling speed of the railcar body 37, under the condition that the working state of the motor 1 is unchanged, the working state of the electrohydraulic driving system is adjusted by utilizing a corresponding valve in the electrohydraulic driving system, for example, when the cable drum 35 needs to be decelerated and rotated, the cable drum 35 is decelerated and rotated by storing the pressure energy output by the hydraulic pump 2, the opening adjustment of an overflow valve in an oil way, the displacement change of a hydraulic motor serving as an actuating mechanism and the like through the accumulator 17. When the cable drum 35 needs to rotate in an accelerating way, the hydraulic oil stored in the energy accumulator 17 outputs energy to the actuating mechanism through the oil way to drive the cable drum 35 to rotate in an accelerating way.
As described above, the scheme utilizes the electrohydraulic driving system to drive the corresponding paying-off arm and the cable drum 35 on the railway vehicle to move, and utilizes the characteristic that the working parameters of the electrohydraulic driving system are easy to adjust, so that the paying-off arm and the cable drum 35 can be controlled in a higher precision and with a faster response; meanwhile, the energy accumulator 17 is arranged, and the energy output by the energy accumulator 17 can be utilized to make up for the deficiency of the power of the motor 1 according to the drive power abrupt change requirement. Finally, the aim of conveniently matching the power required by the cable laying is fulfilled.
As a person skilled in the art, when the railway vehicle works, the cable drum 35 only needs to rotate, and the pay-off arm needs to rotate and lift, so the driving mechanism serving as the pay-off arm preferably comprises a hydraulic cylinder 18 and a hydraulic motor, and the driving mechanism of the cable drum 35 comprises the hydraulic motor.
Example 2:
this embodiment is further defined on the basis of embodiment 1, as shown in fig. 1 to 3, and is configured to facilitate real-time monitoring of the tension on the cable: also included is a tension measuring device 32 disposed in the cable transfer path, the tension measuring device 32 being configured to measure the tension of the cable during laying. In this embodiment, the tension measuring device 32 may employ a tension test tray, and the cable to be output bypasses the side surface of the tension test tray and contacts the side surface of the tension test tray, and presses the tension test tray along the radial direction of the contact point.
As another technical solution for indirectly obtaining the tension on the cable, it is provided that: the electrohydraulic driving system comprises a first hydraulic motor for driving the cable drum 35 to rotate, and a torque sensor 8 is further connected in series on a transmission shaft between the first hydraulic motor and the cable drum 35. In this solution, the torque of the first hydraulic motor is obtained by the torque sensor 8, and the measured value can be converted into the cable tension by calculation.
Because cable tension is one of the important control parameters of subway cable laying, for conveniently realizing automatic control of cable tension, set up to: the constant tension control module is used for realizing tension stability control on the cable and comprises a calculation module, and the calculation module is used for controlling actual working parameters of the electrohydraulic driving system according to actual tension values on the cable. Specifically, because the subway cable is generally three-stranded when being laid, for example, after the three-stranded cable passes through the automatic wire binding of the wire binding machine 36, the three-stranded cable is output to the tension test disc, the tension test disc sends a measured tension signal to the calculation module, the calculation module sends a control signal after converting, analyzing and processing the signal, the opening of the proportional overflow valve used for controlling the operation of the first hydraulic motor in the electro-hydraulic driving system is adjusted, and the pressure at two ends of the quantitative motor is controlled for the first hydraulic motor which is the quantitative motor, so that the output torque of the first hydraulic motor is adjusted. According to the scheme, the needed tension value is input into the constant tension control system before paying-off operation, the proportional overflow valve has an opening according to the preset tension value, the output torque of the first hydraulic motor is controlled, and tension paying-off is controlled. More specifically: the tension sensor is arranged on the tension test disc, the collected actual tension forms closed loop control through feedback, and the closed loop control is compared with the set tension, so that the opening degree of the proportional overflow valve is controlled to keep the output torque of the low speed and the large torque consistent with the set tension. Equivalently, the rotational speed control of the cable drum 35, which may be based on speed feedback: the speed sensor is used for collecting speed signals, the displacement of the variable motor is controlled through feedback, the rotating speed of the wire coil is automatically matched to be synchronous with the speed of the vehicle, and the first hydraulic motor is the variable motor under the condition. Fig. 3 shows a specific principle of realizing constant tension control by means of a constant tension control module.
As a specific implementation scheme of the pay-off arm driving system, the method comprises the following steps: the pay-off arm driving system comprises a hydraulic cylinder 18, a pay-off arm rotary table 31 and a second hydraulic motor, the pay-off arm is rotatably connected with the railcar body 37 through the pay-off arm rotary table 31, the hydraulic cylinder 18 is used for driving the pay-off arm to lift, and the second hydraulic motor is used for driving the pay-off arm rotary table 31 to rotate. As a person skilled in the art, in the specific application of the present solution, the hydraulic cylinder 18 may be configured to only drive the pay-off end of the pay-off arm to rise or fall, or may be configured to drive the pay-off arm to rise and fall as a whole.
As described above, since the existing pay-off arm for subway cable laying is very large in mass, such as 2-3 tons in general, in order to avoid a great waste of energy when the pay-off arm is lowered, it is set to: when the hydraulic cylinder 18 is actuated to lower the pay-off arm, the accumulator 17 stores energy through an oil passage connected to the hydraulic cylinder 18.
As a technical scheme for controlling rotation of the pay-off arm by controlling the displacement, the device is as follows: the second hydraulic motor is a variable displacement motor.
As described above, since the cable generally includes a plurality of strands, in order to achieve synchronous laying of the plurality of strands of the cable, it is provided that: and also includes a wire binder 36 disposed in the cable transfer path.
In order to simplify the railcar structure, set up to: the spool drive system 34 and the pay-off arm drive system share the same set of electro-hydraulic drive system.
In order to realize energy storage when the energy accumulator 17 is needed and liquid discharge by an inlet, the impact of the system in working is reduced, the house-to-house ratio is improved, the energy utilization rate is improved, and the system is set as follows: a switch valve is also connected in series on the pipeline between the pipeline at the outlet end of the hydraulic pump 2 and the accumulator 17.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments, and it is not intended that the invention be limited to these descriptions. Other embodiments of the invention, which are apparent to those skilled in the art to which the invention pertains without departing from its technical scope, shall be covered by the protection scope of the invention.
Claims (7)
1. The utility model provides a railcar for subway cable lays, includes railcar body (37), be provided with cable drum (35), drum actuating system (34), pay off arm (38) and pay off arm actuating system on railcar body (37), drum actuating system (34) are used for driving cable drum (35) and rotate, pay off arm actuating system is used for driving pay off arm (38) lift and rotates, a serial communication port, drum actuating system (34) and pay off arm actuating system are electrohydraulic actuating system, and are provided with energy storage ware (17) in the electrohydraulic actuating system, the pipeline piping connection of hydraulic pump (2) exit end in energy storage ware (17) and the electrohydraulic actuating system. When the hydraulic pump (2) is in operation, the accumulator (17) can store pressure energy from the hydraulic pump (2), and the accumulator (17) can release energy to an actuator in the electrohydraulic drive system;
The cable laying device further comprises a tension measuring device (32) arranged on the transmission path of the cable (10), wherein the tension measuring device (32) is used for measuring the tension of the cable (10) in the laying process;
The electrohydraulic driving system comprises a first hydraulic motor (7) for driving the cable drum (35) to rotate, and a torque sensor (8) is connected in series on a transmission shaft between the first hydraulic motor (7) and the cable drum (35);
The tension control system further comprises a constant tension control module for realizing tension stability control on the cable (10), wherein the constant tension control module comprises a calculation module, and the calculation module controls actual working parameters of the electro-hydraulic driving system according to actual tension values on the cable (10).
2. A railcar for subway cable laying according to claim 1, wherein the pay-off arm driving system comprises a hydraulic cylinder (18), a pay-off arm turntable (31) and a second hydraulic motor (29), the pay-off arm (38) is rotatably connected with the railcar body (37) through the pay-off arm turntable (31), the hydraulic cylinder (18) is used for driving the pay-off arm (38) to lift, and the second hydraulic motor (29) is used for driving the pay-off arm turntable (31) to rotate.
3. A railcar for subway cabling according to claim 2 wherein said accumulator (17) stores energy through an oil circuit connected to the hydraulic cylinder (18) when the hydraulic cylinder (18) is actuated to lower the pay-off arm (38).
4. A railcar for subway cabling according to claim 2 wherein said second hydraulic motor (29) is a variable displacement motor.
5. A railcar for use in subway cabling according to claim 1 further comprising a wire binding machine (36) disposed in the transfer path of the cable (10).
6. A railcar for use in subway cabling according to claim 1 wherein the spool drive system (34) and pay-off arm drive system share the same set of electro-hydraulic drive systems.
7. A railcar for subway cabling according to any of claims 1 to 6 characterized in that a switching valve is also connected in series in the conduit between the conduit at the outlet end of the hydraulic pump (2) and the accumulator (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615341.2A CN110380359B (en) | 2019-07-09 | Railway vehicle for subway cable laying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615341.2A CN110380359B (en) | 2019-07-09 | Railway vehicle for subway cable laying |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110380359A CN110380359A (en) | 2019-10-25 |
| CN110380359B true CN110380359B (en) | 2024-06-11 |
Family
ID=
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI751260A (en) * | 1974-04-30 | 1975-10-31 | Astrup & Co As H | |
| GB9002622D0 (en) * | 1990-02-06 | 1990-04-04 | Ugland Oilfield Services A S | Method and apparatus for laying underwater cables and pipelines |
| JPH05316618A (en) * | 1992-05-11 | 1993-11-26 | Central Japan Railway Co | Cable laying vehicle |
| CN201178268Y (en) * | 2008-04-09 | 2009-01-07 | 上海市电力公司电缆输配电公司 | Speed regulating system of uncoiling of cable coil |
| CN202930837U (en) * | 2012-12-06 | 2013-05-08 | 中铁建电气化局集团第五工程有限公司 | Looped network cable laying work car |
| CN104218499A (en) * | 2014-09-24 | 2014-12-17 | 中铁八局集团电务工程有限公司 | Tension stringing device |
| CN105600598A (en) * | 2015-11-12 | 2016-05-25 | 中国海洋石油总公司 | Openable track tensioning device |
| CN107082073A (en) * | 2017-05-18 | 2017-08-22 | 西南交通大学 | A kind of descending energy regenerating for electro-hydraulic railcar and slow system |
| CN107777416A (en) * | 2016-08-28 | 2018-03-09 | 李福霞 | A kind of constant tension control system based on fuzzy |
| CN108711785A (en) * | 2018-04-28 | 2018-10-26 | 国家电网公司 | Cable drum carriage |
| CN109080454A (en) * | 2018-08-23 | 2018-12-25 | 西南交通大学 | A kind of electro-hydraulic drive system reducing power of motor |
| CN208381008U (en) * | 2018-06-27 | 2019-01-15 | 天津天易海上工程有限公司 | Sea cable is laid with the fluid power system for using identical tension dragger |
| CN209071952U (en) * | 2018-12-18 | 2019-07-05 | 中铁电气化局集团有限公司 | Contact net additional wire stringer and system |
| CN210201331U (en) * | 2019-07-09 | 2020-03-27 | 西南交通大学 | A railcar for subway cable laying |
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI751260A (en) * | 1974-04-30 | 1975-10-31 | Astrup & Co As H | |
| GB9002622D0 (en) * | 1990-02-06 | 1990-04-04 | Ugland Oilfield Services A S | Method and apparatus for laying underwater cables and pipelines |
| JPH05316618A (en) * | 1992-05-11 | 1993-11-26 | Central Japan Railway Co | Cable laying vehicle |
| CN201178268Y (en) * | 2008-04-09 | 2009-01-07 | 上海市电力公司电缆输配电公司 | Speed regulating system of uncoiling of cable coil |
| CN202930837U (en) * | 2012-12-06 | 2013-05-08 | 中铁建电气化局集团第五工程有限公司 | Looped network cable laying work car |
| CN104218499A (en) * | 2014-09-24 | 2014-12-17 | 中铁八局集团电务工程有限公司 | Tension stringing device |
| CN105600598A (en) * | 2015-11-12 | 2016-05-25 | 中国海洋石油总公司 | Openable track tensioning device |
| CN107777416A (en) * | 2016-08-28 | 2018-03-09 | 李福霞 | A kind of constant tension control system based on fuzzy |
| CN107082073A (en) * | 2017-05-18 | 2017-08-22 | 西南交通大学 | A kind of descending energy regenerating for electro-hydraulic railcar and slow system |
| CN108711785A (en) * | 2018-04-28 | 2018-10-26 | 国家电网公司 | Cable drum carriage |
| CN208381008U (en) * | 2018-06-27 | 2019-01-15 | 天津天易海上工程有限公司 | Sea cable is laid with the fluid power system for using identical tension dragger |
| CN109080454A (en) * | 2018-08-23 | 2018-12-25 | 西南交通大学 | A kind of electro-hydraulic drive system reducing power of motor |
| CN209071952U (en) * | 2018-12-18 | 2019-07-05 | 中铁电气化局集团有限公司 | Contact net additional wire stringer and system |
| CN210201331U (en) * | 2019-07-09 | 2020-03-27 | 西南交通大学 | A railcar for subway cable laying |
Non-Patent Citations (2)
| Title |
|---|
| 基于静液压的电力轨道车驱动系统主参数计算与起步加速性能仿真;王彬;刘桓龙;;机床与液压(第19期);152-156 * |
| 电液混合动力轨道车泵源设计与分析;王彬;刘桓龙;;液压与气动(第02期);77-83 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110380360B (en) | Subway tunnel construction railcar convenient to realize regular cable laying | |
| CN103043534B (en) | Tower crane hoisting and speed control method | |
| CN103407920B (en) | A kind of intelligent deep hole rope winch being driven by variable-frequency motor | |
| CN105967002A (en) | Cable take-up and pay-off system | |
| CN201173836Y (en) | Transmission and control device for wire rope tension detection | |
| CN102674076B (en) | Automatic cable inverting machine of logging cable | |
| CN209440778U (en) | Glass fibre belt continues band device automatically | |
| CN108946547A (en) | The method with release descending mechanism is promoted by intelligent winding plant | |
| CN210350626U (en) | Subway tunnel construction railcar convenient for realizing regular cable laying | |
| CN110380359B (en) | Railway vehicle for subway cable laying | |
| CN201132940Y (en) | Wire- wrapping machine for stowing rope | |
| CN208621328U (en) | Big momentum promotes release system | |
| CN110416924B (en) | Subway tunnel construction railcar convenient to thread and tunnel cable threading method | |
| CN210577434U (en) | Subway tunnel construction rail car convenient for threading | |
| CN201080414Y (en) | Container multipurpose machine for assembling and disassembling door | |
| CN108439238B (en) | Water-cooled electrohydraulic double-power winch for deep sea equipment | |
| CN201726071U (en) | Pulling-type 2*40KN dragger | |
| CN210201331U (en) | A railcar for subway cable laying | |
| CN204125985U (en) | A kind of grab type energy-saving dredge boat | |
| CN202533815U (en) | Intelligent tensioner | |
| CN209242547U (en) | Single drum rubbish hangs structure | |
| CN109185242B (en) | Hydraulic driving device of large reel type sprinkler | |
| CN207903855U (en) | A kind of strand automatic lifting roller way system | |
| CN201411484Y (en) | Automatic hot-dip galvanized steel wire taking-up device | |
| CN207320707U (en) | A kind of tension stringing fluid power dragger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |