CN111645570A - Multifunctional rail transit contact net tower wagon - Google Patents

Multifunctional rail transit contact net tower wagon Download PDF

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Publication number
CN111645570A
CN111645570A CN202010520471.0A CN202010520471A CN111645570A CN 111645570 A CN111645570 A CN 111645570A CN 202010520471 A CN202010520471 A CN 202010520471A CN 111645570 A CN111645570 A CN 111645570A
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CN
China
Prior art keywords
rail
wheel
axle
wheels
spring
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Pending
Application number
CN202010520471.0A
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Chinese (zh)
Inventor
李曈
姚子明
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Beijing Zhuoweitang Technology Co ltd
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Beijing Zhuoweitang Technology Co ltd
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Application filed by Beijing Zhuoweitang Technology Co ltd filed Critical Beijing Zhuoweitang Technology Co ltd
Priority to CN202010520471.0A priority Critical patent/CN111645570A/en
Publication of CN111645570A publication Critical patent/CN111645570A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60MPOWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00Power supply lines for contact with collector on vehicle
    • B60M1/12Trolley lines; Accessories therefor
    • B60M1/28Manufacturing or repairing trolley lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61DBODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D15/00Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways

Abstract

A multifunctional rail transit contact net tower wagon belongs to the field of rail transit. The method comprises the following steps: the intelligent control system comprises an intelligent control system, a ladder car body, a spring damping system, a stabilizing system, a braking system, an oil-electricity hybrid system and a rail transit system; simple structure, the operation of being convenient for belongs to intelligent operating means, and removable scattered collapsible, the transportation of being convenient for, the transportation when the project of being convenient for is changed, and two people just can accomplish the transportation, realize that two actual staff advance from control ladder car, open and stop and utilize the electric tool construction and need not the generator cooperation.

Description

Multifunctional rail transit contact net tower wagon
The technical field is as follows:
the multifunctional rail transit contact net tower wagon is mainly applied to contact net professional construction in electrified construction in railway, subway and urban railway construction and window period inspection and maintenance operation in railway, subway and urban railway operation and maintenance, and belongs to the field of rail transit.
Background art:
in the past, a contact net ladder car is used in rail transit electric power detection, and the contact net ladder car is manually pushed and supported to run and keep stable. The original ladder car has the defects that 4 pushers and 1 person (1 corner and 1 person) are needed to be added with 1 safety and lookout person to realize the form and stability of the ladder car, and labor is greatly wasted; in addition, the escalator vehicle does not have 100% of safety, all the situations of distraction and the like can occur in manual operation, casualties can be caused after the stability of the escalator vehicle is in problem, and the conditions of tumble injury and death can occur every year in the professional construction of a contact network. Therefore, how to avoid labor waste and how to reduce casualties is a key problem of construction by using the ladder car, the multifunctional rail transit contact net ladder car has the functions of controllable walking, controllable lifting, automatic control and the like, is suitable for rail construction and detection during operation and maintenance, and has theoretical value and engineering practical value.
The invention content is as follows:
the invention provides a multifunctional rail transit electric power detection vehicle, which aims to solve the problems of automatic walking, automatic lifting, automatic control and walking stability of a contact net tower wagon.
Multifunctional rail transit contact net tower wagon includes: the intelligent control system comprises an intelligent control system, a ladder car body, a spring damping system, a stabilizing system, a braking system, an oil-electricity hybrid system and a rail transit system;
the intelligent control system comprises an intelligent control platform (1.1) and a remote control terminal (1.2), wherein the remote control terminal (1.2) is fixed on the intelligent control platform (1.1);
the rail transit system (this system is a conventional technical solution) includes: a wheel (6.1), a rim (6.2), an axle (6.3), a steel rail (6.4) and a bearing (6.5); grooves are formed in the two side faces of the steel rail (6.4) along the length direction, two corresponding wheels are arranged above the two parallel steel rails respectively, a wheel flange (6.2) is correspondingly arranged on each wheel, one group of wheels (6.1) which are arranged side by side on the two parallel steel rails, namely A1 wheels and A2 wheels, are connected through an axle (6.3), two groups of wheels (6.1) which are arranged side by side are formed in total, and the other group of wheels which are arranged side by side, namely A3 wheels and A4 wheels, are connected through another axle (6.3); the A1 wheel and the A3 wheel are arranged on one steel rail, the A2 wheel and the A4 wheel are arranged on the other steel rail, one group of the side-by-side wheels are used as driving wheels, the other group of the side-by-side wheels are used as driven wheels, and a bearing (6.5) is arranged between each wheel of the driven wheels and an axle.
The oil-electricity hybrid system (5) comprises a dragging electric vehicle (5.1) and a power system (5.2); the driving trolley (5.1) is matched and connected with the corresponding axle of the driving wheel of the driving mechanism, and the power system (5.2) provides driving power for the driving trolley, so that the driving trolley (5.1) drives the axle (6.3) of the driving wheel to rotate so as to drive the driving wheel to rotate; the power system (5.2) adopts an oil and electric hybrid power system; the remote control terminal (1.2) is connected with the power system (5.2) and the dragging trolley bus (5.1);
the ladder car main body comprises ladder car side ladders (2.1), a folding structure (2.2), a support frame (2.3) and a chassis (2.4), wherein the chassis (2.4) at least comprises a rectangular frame, the rectangular frame of the chassis (2.4) is positioned above an axle (6.3) and a steel rail, and four top points of the rectangular frame of the chassis (2.4) are fixed with the axle (6.3) at four wheels through bearings and do not rotate along with the axle; two ladder car side ladders (2.1) are arranged above the chassis (2.4), the two ladder car side ladders (2.1) are overlapped to form a face-to-face angle fixing and supporting structure, an intelligent control platform (1.1) is fixedly arranged above the two ladder car side ladders (2.1), the two ladder car side ladders (2.1) are fixed face to face by adopting a supporting frame (2.3), a folding structure (2.2) is adopted in the middle of each ladder car side ladder (2.1), and if the folding structure (2.2) adopts a hinge type rotatable folding structure;
the spring damping system comprises a spring device (3.1) and a hydraulic rod (3.2); a spring piece is arranged below the hydraulic rod (3.2) and used for clamping the spring device (3.1) and simultaneously realizing the connection with the axle of the ladder car. The upper side of the hydraulic rod (3.2) is connected with the ladder car frame, and the lower side of the hydraulic rod is directly fixed on an axle (6.3) of the driven wheel by adopting a bolt; for an axle (6.3) of a driving wheel, a bearing (6.5) is arranged on the axle (6.3), the lower side of a hydraulic rod (3.2) is fixed on the bearing, and the hydraulic rod (3.2) can be ensured not to move in the horizontal direction on the premise that a driving shaft can normally rotate. The spring device (3.1) is sleeved on the inner rod of the hydraulic rod (3.2), the outer shaft of the upper hydraulic rod (3.2) of the spring device (3.1) is connected, the lower part of the spring device (3.1) is clamped on the bottom iron sheet of the hydraulic rod (3.2), and when the wheels of the ladder car shake, the spring damping system can realize damping through spring contraction.
The stabilizing system and the braking system comprise a manual braking system (4.1), an electromagnetic braking system (4.2) and a friction braking system (4.3); wherein the manual brake system (4.1) and the electromagnetic brake system (4.2) are arranged between two wheels on the same steel rail and are fixed on a ladder car body, particularly a base.
The manual brake system (4.1) comprises a manual pull wire (4.1.1), a metal fixing sleeve (4.1.2) and a rail clamping hand (4.1.3), wherein the two coplanar rail clamping hands (4.1.3) are fixed to the metal fixing sleeve (4.1.2) at a certain middle point in the length direction in a fixed rotating shaft or hinge mode, the rail clamping hands (4.1.3) can rotate around a fixed point, the upper end parts of the two coplanar rail clamping hands (4.1.3) are connected by a high-strength steel wire rope or elastic material rope-shaped structure, then the middle part of the high-strength steel wire rope or elastic material rope-shaped structure is connected with one end of the manual pull wire (4.1.1), the other end of the manual pull wire (4.1.1) is connected to an operation table and is controlled by a constructor, and the manual pull wire (4.1.1) is a high-strength steel wire rope; the metal fixing sleeve (4.1.2) is used for fixing a rail clamping system, the rail clamping hand (4.1.3) is made of high-strength PET (polyethylene terephthalate), the friction force is large, the ladder car is braked by the friction force between the rail clamping hand and a steel rail, the lower end of the rail clamping hand (4.1.3) is a gripper which is close to the middle, the two rail clamping hands (4.1.3) are positioned on two sides of the steel rail (6.4), and the lower end gripper of the rail clamping hand (4.1.3) is correspondingly positioned in grooves on two sides of the steel rail (6.4);
the electromagnetic brake system (4.2) comprises an electromagnet brake body (4.2.1), a spring puller (4.2.2), a suction force measuring sensor (4.2.3) and a power distribution device (4.2.4); the electromagnet brake body (4.2.1) is fixed to the lower edge of the ladder car through a spring puller (4.2.1), is positioned right above the rail surface of the steel rail (6.4) and keeps a gap with the rail surface; a spring is arranged in the spring puller (4.2.1), so that the rising and falling of the electromagnet brake body (4.2.1) can be controlled conveniently; the electromagnet brake body (4.2.1) is as follows: an electromagnetic brake pad is inserted into the electromagnetic coil, the electromagnetic brake pad is an iron core, and the electromagnetic coil and a power distribution device (4.2.4), namely an adjustable resistor, a switch and a power supply form a circuit; the electromagnet brake body (4.2.1) is internally provided with a suction force measuring sensor (4.2.3), the suction force measuring sensor (4.2.3) is in digital or signal wireless or wired connection with the remote control terminal (1.2), and the remote control terminal (1.2) is connected with the adjustable resistor and can adjust the resistor.
The friction brake system (4.3) comprises a rail clamping wheel (4.3.1), a rail clamping wheel shaft (4.3.2), a connector (4.3.3), a bearing top sleeve (4.3.4), a hydraulic cylinder fixer (4.3.5), a connecting shaft (4.3.6), a hydraulic cylinder (4.3.7), a hydraulic cylinder telescopic shaft (4.3.8), a brake pad (4.3.9), a sensor (4.3.10) and a controller (4.3.11);
the connector (4.3.3) comprises: spring (4.3.3.1), connecting thick iron sheet (4.3.3.2).
The hydraulic cylinder telescopic shaft (3.4) comprises: telescopic shaft (3.4.1), inner card (3.4.2), adjusting nut (3.4.3).
The rail clamping wheel (4.3.1) is arranged on the vehicle and is arranged on the outer side of the steel rail (6.4), and the rail clamping wheel (4.3.1) is tightly contacted with the upper side surface of the groove on the outer side of the steel rail (6.4) and can freely rotate along with the running of the vehicle; the connector (4.3.3) comprises a spring (4.3.3.1) and a connecting thick iron sheet (4.3.3.2), wherein a vertical groove is formed in the length direction of the connecting thick iron sheet (4.3.3.2), two ends of the vertical groove are of a semi-cylindrical structure, the spring (4.3.3.1) is arranged in the vertical groove of the connecting thick iron sheet (4.3.3.2) along the vertical direction, and the spring (4.3.3.1) can freely stretch out and draw back in the vertical groove along the vertical direction and cannot be separated from the elongated hole; the scheme that the rail clamping wheel (4.3.1) is arranged on the vehicle is as follows: the rail clamping wheel (4.3.1) is coaxially and fixedly connected with one end of a rail clamping wheel shaft (4.3.2), the other end of the rail clamping wheel shaft (4.3.2) is arranged at the bottom end of a groove connected with a vertical groove of the thick iron sheet (4.3.3.2) and fixedly connected with one end of a spring (4.3.3.1), the other end of the rail clamping wheel shaft (4.3.2) can freely vibrate in the vertical direction in the vertical groove connected with the thick iron sheet (1.3.2), and the axial direction of the rail clamping wheel shaft (4.3.2) is in the horizontal direction; the axle (6.3) penetrates through the upper end of the groove of the vertical groove of the connecting thick iron sheet (4.3.3.2), and for the driven wheel, the axle (6.3) is fixed with the connecting thick iron sheet (4.3.3.2) by using a bolt; as for the driving wheel, a bearing is arranged on an axle (6.3), the bearing is connected with the thick iron sheet (4.3.3.2) in a welding mode, the axle of the driving wheel can still rotate under the condition that the position of the thick iron sheet (4.3.3.2) is completely fixed, and power output is achieved. The bearing top sleeve (4.3.4) is arranged between the connecting thick iron sheet (4.3.3.2) and the wheel (6.1) to prevent the wheel (6.1) from directly rubbing with the connecting thick iron sheet (4.3.3.2);
the axle (6.3) is horizontal, the wheels (6.1) are coaxially fixed on the axle (6.3), the wheels (6.1) are supported right above the steel rails (6.4), one end edge of each wheel (6.1) is provided with a wheel rim (6.2), the wheel rims (6.2) are attached to the upper parts of the inner sides of the steel rails (6.4) in parallel, gaps are reserved between the wheel rims (6.2) and the bearing top sleeves (4.3.4), and the wheel rims (6.2) and the bearing top sleeves are respectively located at two end parts of the wheels (6.1);
the hydraulic cylinder fixer (4.3.5) is fixed on the axle (6.3), the hydraulic cylinder (4.3.7) is fixedly connected with the hydraulic cylinder fixer (4.3.5) through a connecting shaft (6.2), one end of a hydraulic cylinder telescopic shaft (4.3.8) is fixedly connected with the hydraulic cylinder (4.3.7), the other end of the hydraulic cylinder telescopic shaft (4.3.8) is fixedly connected with a brake pad (4.3.9), and the hydraulic cylinder telescopic shaft (4.3.8) is parallel to the axle (6.3) and can horizontally and axially extend and retract; the brake pad (4.3.9) is horizontally corresponding to the groove on the inner side surface of the rail (6.4) and can be vertically attached and matched with the groove on the inner side surface of the rail (6.4); the hydraulic cylinder (4.3.7) is provided with a sensor (4.3.10) and a controller (4.3.11), the sensor (4.3.10) is connected with the remote control terminal (1.2) through a lead or a wireless remote controller, and the remote control terminal (1.2) is connected with the controller (4.3.11) through a lead or a wireless remote controller;
preferably, the brake pad is of a (4.3.9) conical surface structure, and the end part is a groove with a small end face pointing to the inner side face of the rigid rail (6.4).
The sensor is a pressure sensor.
The wheel rim and the brake block (4.3.9) are positioned on the same side of the steel rail, the wheel rim is basically attached to the upper part of the steel rail, and the wheel rim and the brake block (4.3.9) are overlapped along the axial projection.
The clamping rail wheel shaft is connected with the spring in the connector and is fixed by the bolt, and the clamping rail wheel shaft and the spring cannot be separated. The rail clamping wheel is connected to the rail clamping wheel shaft through the bolt, the rail clamping wheel is tightly attached to a rail, and the rail clamping wheel can rotate automatically when the ladder car runs. The driven wheel is connected with the thick iron sheet (4.3.3.2) and is fixed on the axle through the bolt (4.3.14), the thick iron sheet (4.3.3.2) and the axle (6.3) are ensured not to move relatively and rotate, the axle (6.3) at the driving wheel is provided with the bearing (6.5), the thick iron sheet (4.3.3.2) of the connector (4.3.3) is welded on the bearing, and the axle (6.3) of the driving wheel can still rotate under the condition that the position of the thick iron sheet (4.3.3.2) is completely fixed, so that the power output is realized. The spring of the connector is fixed below the axle and is inseparable from the axle. Connect thick iron sheet central authorities and set up the vertical recess of placing the spring, guarantee that the spring can only take place vertical flexible in the recess, reach the purpose that restraint card rail shaft can only vertically take place the displacement within a certain range on the connector, do not take place horizontal migration and relative rotation between the two. When the transverse (longitudinal) curve of the steel rail changes, the length of the spring is automatically adjusted to realize the up-and-down movement of the rail clamping wheel, so that the rail clamping wheel is in close contact with the steel rail, and the system is prevented from overturning.
The intelligent control system (1) is composed of an intelligent control platform (1.1) and a remote control terminal (1.2), and then constructors can operate on the intelligent control platform (1.1). In order to prevent personnel from falling and being injured and increase the operation area, the intelligent control platform (1.1) has certain safety height and width; in order to ensure that the intelligent control platform (1.1) has enough stability and firmness, the intelligent control platform (1.1) and the side ladder (2.1) are connected by pins and fastened by screws, so that the intelligent control platform is convenient to mount and dismount. The remote control terminal (1.2) is used for controlling the forward and stop of the elevator car, the start of the oil-electricity hybrid system and the forward, backward, braking and parking functions of the traction electric car. The control system realizes the intellectualization of the ladder car, a constructor can control the walking of the ladder car through the remote control terminal controller, after the ladder car is installed on the track, an operator turns on a control terminal power switch on an operation platform, the ladder car can be controlled to walk freely through an operation key on the remote control terminal, and when the remote control terminal (1.2) starts a dragging trolley (5.1), the remote control terminal pushes down to move forwards/backwards, and the ladder car can walk freely on the track; when the brake device is released, the ladder car is automatically braked by the brake system.
The ladder car main body (2) provides support for the intelligent control system (1), wherein the ladder car side ladder (2.1) is used for constructors to get on and off the intelligent control platform (1.1), and is made of novel aluminum alloy materials, so that the ladder car is lighter and has better strength; the folding structure (2.2) is used for splitting and folding the side ladder, so that the occupied space is smaller;
supporting structure (2.3) adopt the novel material of aluminum alloy to make, and the x type supports, adopts pin joint with the side ladder, and the screw fastening is used for supporting the ladder car main part, guarantees the overall stability of ladder car. The ladder car chassis (2.4) is used for placing the oil-electricity hybrid system (5), and the chassis (2.4) and the side ladder (2.1) adopt a semicircular buckle screw fastening mode.
The spring damping system (3) is used for damping the ladder truck, so that the stability of the ladder truck and the comfort of constructors are guaranteed. The spring damper (3.1) is mainly used for inhibiting the vibration when the spring rebounds after absorbing the shock and the impact from the track. When the ladder car passes through an uneven track surface, the spring can do reciprocating motion, the spring shock absorber (3.1) is used for inhibiting the spring from jumping, the impact and the vibration of the ladder car in the running process are relieved and attenuated, the smoothness and the comfort of the ladder car are ensured, the hydraulic rod (3.2) can play a damping role, the spring is prevented from bouncing too fast to generate rebound, and the spring can well start the shock absorption effect when being combined with the spring.
The stabilizing and braking system (4) ensures the stability of the ladder truck and prevents the ladder truck from overturning. The stability system is added to ensure that the ladder car is separated from the cooperation of auxiliary personnel, and the stability performance is higher than the high-speed rail bearing inclination standard. The manual brake system (4.1) is a device for manually braking the ladder truck, a manual pull wire (4.1.1) is connected to the operating platform and is controlled by constructors, and a high-strength steel wire rope is adopted; the metal fixing sleeve (4.1.2) is used for fixing a rail clamping system, the rail clamping hand (4.1.3) is made of high-strength PET (polyethylene terephthalate), the friction force is large, and the ladder car is braked by the friction force between the rail clamping hand and a steel rail. The electromagnetic brake system (4.2) is a device for automatically braking the ladder truck, is used for preventing the contact net ladder truck from overturning in construction, reduces casualties, and increases the safety and the reliability of the ladder truck. The intelligent friction braking system (4.3) achieves the braking effect through the friction action between the rail clamping wheel and the steel rail. When needing to brake, operating personnel starts braking system on intelligent operation platform, and the spring lifting ware falls, and the electromagnetic brake piece and the track actuation brake, the ladder car stops.
The oil-electricity hybrid system (5) provides enough power for the elevator car, the power system (5.2) is also connected with any part capable of using electricity to provide power for the elevator car, namely the power system provides power for the elevator car and charges a power supply, automatic control of the elevator car system is realized, automatic walking and electric power output serve electric tools, monitoring equipment and a possible future management system, the manual work efficiency is improved, and the construction management capacity is improved. The hybrid power system generates electricity by burning gasoline and supplies power to the ladder truck.
The device provided by the invention has the following beneficial effects:
the invention has simple structure and convenient operation, belongs to an intelligent operation device, can be disassembled and folded, is convenient to transport when a project is changed, can be transported by two persons, realizes that two actual workers automatically control the advance, start and stop of the ladder car and utilize the construction of an electric tool without matching a generator.
The present invention includes, but is not limited to, the above.
Description of the drawings:
fig. 1 is a general schematic view of a multifunctional rail transit contact net tower wagon;
FIG. 2 is a schematic diagram of an intelligent control system;
FIG. 3 is a schematic plan view of the ladder truck;
FIG. 4 is a schematic view of a folded configuration;
FIG. 5 is a detail view of the spring damper system;
FIG. 6 is a detail view of the hand brake;
FIG. 7 is a detail construction diagram (left) of the electromagnetic braking system and a detail construction diagram (right) of the electromagnetic braking body;
FIG. 8 is a circuit configuration of the electromagnetic brake body coil;
FIG. 9 is a detail view of the friction braking system;
FIG. 10 is a detailed connection diagram of the connector;
FIG. 11 is a schematic construction view of a telescopic shaft of the hydraulic cylinder;
FIG. 12 is a schematic view of a drive wheel bearing installation;
the attached drawings are marked as follows:
the intelligent control system includes:
1.1 an intelligent control platform; 1.2 remote control terminal
The ladder car main part includes:
2.1 side ladder of the ladder car; 2.2 a folded structure; 2.3 supporting frames; 2.4 chassis;
the spring shock absorbing system includes:
3.1 spring dampers; 3.2 hydraulic rods;
the stabilizing system and the brake include:
4.1 the manual braking system includes: 4.1.1 manually pulling the wire; 4.1.2 metal fixation sleeves; 4.1.3 clamping the rail and clamping the hand;
4.2 electromagnetic braking system includes: 4.2.1 electromagnetic brake body, 4.2.2 spring pulling device, 4.2.3 suction force measuring sensor, 4.2.4 power distribution device;
4.3 friction braking system includes: 4.3.1 of a rail clamping wheel, 4.3.2 of a rail clamping wheel shaft, 4.3.3 of a connector, 4.3.4 of a bearing top sleeve, 4.3.5 of a hydraulic cylinder fixer, 4.3.6 of a connecting shaft, 4.3.7 of a hydraulic cylinder, 4.3.8 of a hydraulic cylinder telescopic shaft, 4.3.9 of a brake pad, 4.3.10 of a sensor and 4.3.11 of a controller;
4.3.3 the connector includes: 4.3.3.1 spring, 4.3.3.2 connecting thick iron sheet;
the oil-electricity hybrid system includes:
5.2 power system, 5.1 dragging trolley;
the rail transit system includes:
6.1 wheel, 6.2 wheel flange, 6.3 axle, 6.4 rail and 6.5 bearing.
The specific implementation mode is as follows:
the specific implementation method of the present invention will be described in detail with reference to the accompanying drawings, which are only schematic diagrams and only illustrate the basic structure of the present invention, and the embodiments of the present invention are developed by those skilled in the art without creativity, and all belong to the protection scope of the present invention.
Selection of materials:
what ladder car main part 2 adopted is the aluminum alloy material, makes the ladder car lighter to removable scattered collapsible, the transportation of being convenient for, two people just can accomplish the transportation.
The manual stay wire 4.1.1 in the manual brake system 4.1 adopts a high-strength steel wire rope, has high tensile strength, fatigue resistance and impact toughness, and bears the weight of the brake system; in order to ensure that the rail clamping hand 4.1.3 has enough friction with the steel rail, so that the ladder truck can be manually braked, the rail clamping hand 4.1.3 adopts high-strength PET, and has the characteristics of large friction and insulation.
The ladder car uses principle and step:
what hybrid ladder car adopted is that the novel material of aluminum alloy makes, and the weight of ladder car is lighter to the ladder car is dismantled, and is folding, and the platform adopts pin joint with the ladder car, and the side ladder adopts pin joint with bearing structure, adopts semicircle buckle screw fastening with the chassis.
Two constructors carry the ladder car after will dismantling to the track on, carry out the overlap joint to ladder car main part 2, rotatory to the assigned position with the safety pin, fixed side ladder 2.1 makes side ladder 2.1 connect and becomes an overall structure, with bearing structure 2.3 and side ladder 2.1 with pin joint, then accomplish the fastening with side ladder 2.1 and chassis 2.4 adoption semicircle buckle screw, make ladder car main part 2 be connected as a whole with chassis 2.4, adopt pin joint with intelligent control platform 1.1 and side ladder 2.1, accomplish the fastening with the screw, hybrid power ladder car accomplishes the installation, then block rail wheel card rail tong 4.1.3 on the track, connect, accomplish the back inspection hybrid power ladder car.
And starting the oil-electric power system 5 and the ladder car, wherein the electromagnetic brake pad is automatically sucked by 4.2.1, and the 220V working power supply is electrified. The hybrid power system generates electricity by burning gasoline, provides power for the ladder truck, and carries out electricity generation and battery charging. The mode not only retains the advantage of high energy density of gasoline, but also can realize high power-to-weight ratio.
Two constructors begin to operate the ladder car from the ladder car side ladder 2.1 to the hybrid power ladder car intelligent control platform 1.1. The forward/backward button of the remote control terminal 1.2 is pressed, the hybrid power ladder car automatically releases the electromagnetic brake pad 4.2.1, and then the hybrid power ladder car runs; when the forward/backward button is released, the hybrid power ladder car automatically stops, and the electromagnetic brake pad is automatically attracted by 4.2.1 after 2 seconds.
Personnel can make card rail tong 4.1.3 press from both sides tightly with the rail through taut manual stay 4.1.1 on the intelligent control platform 1.1 when parkking, produces frictional force, realizes that the manual brake braking improves stability, reduces the loss of friction between ladder wheel and the rail.
The suction force measuring sensor can monitor the suction force between the electromagnetic brake pad and the steel rail in real time, and transmits the monitored data in a wireless signal mode and receives the data by the control end; an operator or a working system automatically adjusts the resistance of the rheostat to control the electromagnetic field intensity according to the measuring result displayed by the control end, and adjusts the braking force in the braking process of the ladder car, so that the brake body of the electromagnet is attracted with the steel rail to perform braking control, the ladder car is ensured to be more stable in the braking process, and the comfort and the safety of construction of technical personnel are improved. Starting a brake device, wherein a control end sends a brake signal, and the electromagnetic coil is electrified, and the electromagnet generates electromagnetic force to attract the top surface of the rail, so that a brake body of the electromagnet is attracted with the steel rail to brake, and the ladder car is stopped; after the braking action is finished, the spring puller fixed under the ladder car pulls the electromagnetic brake pad to reset. In addition, the control end sets up emergency braking button, when the ladder car meets dangerous needs emergency brake, can guarantee that the ladder car realizes artifical quick braking brake under emergency, and the maximum braking force of train can be controlled to the sensor during to guarantee that the ladder car does not take place to overturn under the circumstances of artifical emergency brake.
And starting the brake system, controlling the oil pressure increase of the hydraulic cylinder by the controller to push the telescopic shaft of the hydraulic cylinder, and realizing brake parking by the brake pad and the steel rail reaching a certain pressure and generating friction under the action of the oil pressure. When the sensor detects that the brake pad and the rail reach a certain pressure, the sensor feeds back information to the controller, and the controller controls the oil pressure of the hydraulic cylinder to keep unchanged. The brake pad automatically resets after the brake system is turned off. The clamping rail wheels on the two sides of the hybrid power ladder car are in close contact with the steel rails, and the clamping rail wheels rotate automatically along with the running of the hybrid power ladder car, so that the friction between the clamping rail wheels and the rails is reduced while the hybrid power ladder car can resist lateral movement and overturning. In addition, the wheel rim of the hybrid ladder vehicle also has the function of preventing the hybrid ladder vehicle from side shifting and overturning to a certain extent.
Braking and braking system: the brake system is mainly used for braking vehicles, and is a main means for preventing dangers and realizing emergency stop of vehicles. The brake block is the main part of brake, when needing the brake, starts braking system, and the brake block contacts with the rail, utilizes brake block and rail friction to reach the effect of hybrid power ladder car's braking. The telescopic shaft of the hydraulic cylinder comprises a telescopic shaft, an inner clamping piece and an adjusting nut, the telescopic shaft directly penetrates through the center of the brake pad, the adjusting nut and the inner clamping piece are located on two sides of the brake pad and used for fixing the brake pad, and the adjusting nut is located at the end of the telescopic shaft. The telescopic shaft of the hydraulic cylinder telescopic shaft directly controls the position of the brake pad, and the inner clamping piece and the adjusting nut are used for fixing the position of the brake pad. The brake block adopts the bolt to be connected with interior card, and interior card and telescopic shaft rigid connection guarantee that the brake block does not take place to remove and rotate. Adjusting nut is fixed in the outside of brake block, prevents that the brake block outwards takes place to remove, strengthens the fixed effect of brake block, guarantees that the two relative movement and the rotation do not take place for brake block and pneumatic cylinder telescopic shaft. The hydraulic cylinder is used for controlling the oil pressure in the brake system, and the controller is used for controlling the hydraulic cylinder to reach a preset fixed pressure value. The controller directly controls the oil pressure of the hydraulic cylinder to increase after the brake system is started, and the brake pad and the rail generate friction under the action of the oil pressure to realize brake parking. The sensor is mounted on the hydraulic cylinder for detecting the oil pressure in the hydraulic cylinder. The sensor and the controller can also be connected by a lead, and the sensor feeds back information to the controller by the lead; when the sensor detects that the pressure between the brake pad and the rail reaches the pressure set by the controller, the controller directly controls the oil pressure in the hydraulic cylinder not to change any more, and the controller is controlled by the control end to control the oil pressure in the hydraulic cylinder; after the brake system is closed, the controller controls the brake pad to automatically reset; in the normal use process, the brake pad is worn and thinned, so that the brake effect is influenced. When the preset fixed pressure value cannot be reached, the sensor feeds back to the controller that the oil pressure value in the hydraulic cylinder does not reach the pressure value set by the controller, and the controller controls the hydraulic cylinder to continuously increase until the preset fixed pressure value is reached, so that the braking effect is ensured. In order to avoid the friction between the telescopic shaft and the steel rail when the brake pad is worn to a certain degree, the length of the telescopic shaft is controlled within a certain range, and the telescopic shaft cannot continue to extend and still keeps a proper distance from the steel rail when the brake pad is worn to a replacement degree. The controller is connected with an alarm system, when the telescopic shaft cannot extend, the sensor detects that the pressure of the hydraulic cylinder is insufficient and feeds back the pressure to the controller, and the controller triggers the alarm system to remind of replacing the brake pad. The hydraulic cylinder controls the telescopic shaft of the hydraulic cylinder to control the position of the brake pad, so that braking is realized. The connecting shaft is used for fixing the position of the hydraulic cylinder, and the position of the hydraulic cylinder is guaranteed not to change. The hydraulic cylinder fixer, the connecting shaft and the hydraulic cylinder are connected by high-strength bolts, so that the hydraulic cylinder fixer, the connecting shaft and the hydraulic cylinder are prevented from moving and rotating relatively. The whole braking device is fixed at a proper position on the axle through the hydraulic cylinder fixer, so that the brake pad and the rail keep a certain distance in a non-working state of the system, and the braking can be effectively realized in a working state. When the whole brake system works, the brake system and the axle are ensured not to displace and rotate.
If special conditions are met: the emergency stop button can be pressed when all electrical elements and mechanical structures are failed, the hybrid power ladder car automatically stops, the 220V working power supply is stopped, the residual electricity in all batteries is supplied to the electromagnetic brake, the electromagnetic brake can be kept for more than half an hour, and people can get off and close the hybrid power ladder car.

Claims (3)

1. The utility model provides a multi-functional rail transit contact net tower wagon which characterized in that includes: the intelligent control system comprises an intelligent control system, a ladder car body, a spring damping system, a stabilizing system, a braking system, an oil-electricity hybrid system and a rail transit system;
the intelligent control system comprises an intelligent control platform (1.1) and a remote control terminal (1.2), wherein the remote control terminal (1.2) is fixed on the intelligent control platform (1.1);
the rail transit system (this system is a conventional technical solution) includes: a wheel (6.1), a rim (6.2), an axle (6.3), a steel rail (6.4) and a bearing (6.5); grooves are formed in the two side faces of the steel rail (6.4) along the length direction, two corresponding wheels are arranged above the two parallel steel rails respectively, a wheel flange (6.2) is correspondingly arranged on each wheel, one group of wheels (6.1) which are arranged side by side on the two parallel steel rails, namely A1 wheels and A2 wheels, are connected through an axle (6.3), two groups of wheels (6.1) which are arranged side by side are formed in total, and the other group of wheels which are arranged side by side, namely A3 wheels and A4 wheels, are connected through another axle (6.3); the A1 wheel and the A3 wheel are arranged on one steel rail, the A2 wheel and the A4 wheel are arranged on the other steel rail, one group of the side-by-side wheels are used as driving wheels, the other group of the side-by-side wheels are used as driven wheels, and a bearing (6.5) is arranged between each wheel of the driven wheels and an axle;
the oil-electricity hybrid system (5) comprises a dragging electric vehicle (5.1) and a power system (5.2); the driving trolley (5.1) is matched and connected with the corresponding axle of the driving wheel of the driving mechanism, and the power system (5.2) provides driving power for the driving trolley, so that the driving trolley (5.1) drives the axle (6.3) of the driving wheel to rotate so as to drive the driving wheel to rotate; the power system (5.2) adopts an oil and electric hybrid power system; the remote control terminal (1.2) is connected with the power system (5.2) and the dragging trolley bus (5.1);
the ladder car main body comprises ladder car side ladders (2.1), a folding structure (2.2), a support frame (2.3) and a chassis (2.4), wherein the chassis (2.4) at least comprises a rectangular frame, the rectangular frame of the chassis (2.4) is positioned above an axle (6.3) and a steel rail, and four top points of the rectangular frame of the chassis (2.4) are fixed with the axle (6.3) at four wheels through bearings and do not rotate along with the axle; two ladder car side ladders (2.1) are arranged above the chassis (2.4), the two ladder car side ladders (2.1) are overlapped to form a face-to-face angle fixing and supporting structure, an intelligent control platform (1.1) is fixedly arranged above the two ladder car side ladders (2.1), the two ladder car side ladders (2.1) are fixed face to face by adopting a supporting frame (2.3), a folding structure (2.2) is adopted in the middle of each ladder car side ladder (2.1), and if the folding structure (2.2) adopts a hinge type rotatable folding structure;
the spring damping system comprises a spring device (3.1) and a hydraulic rod (3.2); a spring piece is arranged below the hydraulic rod (3.2) and used for clamping the spring device (3.1) and simultaneously realizing the connection with the axle of the ladder car. The upper side of the hydraulic rod (3.2) is connected with the ladder car frame, and the lower side of the hydraulic rod is directly fixed on an axle (6.3) of the driven wheel by adopting a bolt; for an axle (6.3) of a driving wheel, a bearing (6.5) is arranged on the axle (6.3), the lower side of a hydraulic rod (3.2) is fixed on the bearing, and the hydraulic rod (3.2) can be ensured not to move in the horizontal direction on the premise that a driving shaft can normally rotate. The spring device (3.1) is sleeved on the inner rod of the hydraulic rod (3.2), the outer shaft of the upper hydraulic rod (3.2) of the spring device (3.1) is connected, the lower part of the spring device (3.1) is clamped on the bottom iron sheet of the hydraulic rod (3.2), and when the wheels of the ladder car shake, the spring damping system can realize damping through spring contraction. The stabilizing system and the braking system comprise a manual braking system (4.1), an electromagnetic braking system (4.2) and a friction braking system (4.3); wherein the manual brake system (4.1) and the electromagnetic brake system (4.2) are arranged between two wheels on the same steel rail and are fixed on a ladder car body, particularly a base.
The manual brake system (4.1) comprises a manual pull wire (4.1.1), a metal fixing sleeve (4.1.2) and a rail clamping hand (4.1.3), wherein the two coplanar rail clamping hands (4.1.3) are fixed to the metal fixing sleeve (4.1.2) at a certain middle point in the length direction in a fixed rotating shaft or hinge mode, the rail clamping hands (4.1.3) can rotate around a fixed point, the upper end parts of the two coplanar rail clamping hands (4.1.3) are connected by a high-strength steel wire rope or elastic material rope-shaped structure, then the middle part of the high-strength steel wire rope or elastic material rope-shaped structure is connected with one end of the manual pull wire (4.1.1), the other end of the manual pull wire (4.1.1) is connected to an operation table and is controlled by a constructor, and the manual pull wire (4.1.1) is a high-strength steel wire rope; the metal fixing sleeve (4.1.2) is used for fixing a rail clamping system, the rail clamping hand (4.1.3) is made of high-strength PET (polyethylene terephthalate), the friction force is large, the ladder car is braked by the friction force between the rail clamping hand and a steel rail, the lower end of the rail clamping hand (4.1.3) is a gripper which is close to the middle, the two rail clamping hands (4.1.3) are positioned on two sides of the steel rail (6.4), and the lower end gripper of the rail clamping hand (4.1.3) is correspondingly positioned in grooves on two sides of the steel rail (6.4);
the electromagnetic brake system (4.2) comprises an electromagnet brake body (4.2.1), a spring puller (4.2.2), a suction force measuring sensor (4.2.3) and a power distribution device (4.2.4); the electromagnet brake body (4.2.1) is fixed to the lower edge of the ladder car through a spring puller (4.2.1), is positioned right above the rail surface of the steel rail (6.4) and keeps a gap with the rail surface; a spring is arranged in the spring puller (4.2.1), so that the rising and falling of the electromagnet brake body (4.2.1) can be controlled conveniently; the electromagnet brake body (4.2.1) is as follows: an electromagnetic brake pad is inserted into the electromagnetic coil, the electromagnetic brake pad is an iron core, and the electromagnetic coil and a power distribution device (4.2.4), namely an adjustable resistor, a switch and a power supply form a circuit; the electromagnet brake body (4.2.1) is internally provided with a suction force measuring sensor (4.2.3), the suction force measuring sensor (4.2.3) is in digital or signal wireless or wired connection with the remote control terminal (1.2), and the remote control terminal (1.2) is connected with the adjustable resistor and can adjust the resistor.
The friction brake system (4.3) comprises a rail clamping wheel (4.3.1), a rail clamping wheel shaft (4.3.2), a connector (4.3.3), a bearing top sleeve (4.3.4), a hydraulic cylinder fixer (4.3.5), a connecting shaft (4.3.6), a hydraulic cylinder (4.3.7), a hydraulic cylinder telescopic shaft (4.3.8), a brake pad (4.3.9), a sensor (4.3.10) and a controller (4.3.11);
the connector (4.3.3) comprises: a spring (4.3.3.1) and a connecting thick iron sheet (4.3.3.2);
the rail clamping wheel (4.3.1) is arranged on the vehicle and is arranged on the outer side of the steel rail (6.4), and the rail clamping wheel (4.3.1) is tightly contacted with the upper side surface of the groove on the outer side of the steel rail (6.4) and can freely rotate along with the running of the vehicle; the connector (4.3.3) comprises a spring (4.3.3.1) and a connecting thick iron sheet (4.3.3.2), wherein a vertical groove is formed in the length direction of the connecting thick iron sheet (4.3.3.2), two ends of the vertical groove are of a semi-cylindrical structure, the spring (4.3.3.1) is arranged in the vertical groove of the connecting thick iron sheet (4.3.3.2) along the vertical direction, and the spring (4.3.3.1) can freely stretch out and draw back in the vertical groove along the vertical direction and cannot be separated from the elongated hole; the scheme that the rail clamping wheel (4.3.1) is arranged on the vehicle is as follows: the rail clamping wheel (4.3.1) is coaxially and fixedly connected with one end of a rail clamping wheel shaft (4.3.2), the other end of the rail clamping wheel shaft (4.3.2) is arranged at the bottom end of a groove connected with a vertical groove of the thick iron sheet (4.3.3.2) and fixedly connected with one end of a spring (4.3.3.1), the other end of the rail clamping wheel shaft (4.3.2) can freely vibrate in the vertical direction in the vertical groove connected with the thick iron sheet (1.3.2), and the axial direction of the rail clamping wheel shaft (4.3.2) is in the horizontal direction; the axle (6.3) penetrates through the upper end of the groove of the vertical groove of the connecting thick iron sheet (4.3.3.2), and for the driven wheel, the axle (6.3) is fixed with the connecting thick iron sheet (4.3.3.2) by using a bolt; the driving wheel is provided with the bearing on the axle (6.3), the bearing is connected with the thick iron sheet (4.3.3.2) in a welding way, and the axle of the driving wheel can still rotate under the condition that the position of the thick iron sheet (4.3.3.2) is completely fixed, so that the power output is realized; the bearing top sleeve (4.3.4) is arranged between the connecting thick iron sheet (4.3.3.2) and the wheel (6.1) to prevent the wheel (6.1) from directly rubbing with the connecting thick iron sheet (4.3.3.2);
the axle (6.3) is horizontal, the wheels (6.1) are coaxially fixed on the axle (6.3), the wheels (6.1) are supported right above the steel rails (6.4), one end edge of each wheel (6.1) is provided with a wheel rim (6.2), the wheel rims (6.2) are attached to the upper parts of the inner sides of the steel rails (6.4) in parallel, gaps are reserved between the wheel rims (6.2) and the bearing top sleeves (4.3.4), and the wheel rims (6.2) and the bearing top sleeves are respectively located at two end parts of the wheels (6.1);
the hydraulic cylinder fixer (4.3.5) is fixed on the axle (6.3), the hydraulic cylinder (4.3.7) is fixedly connected with the hydraulic cylinder fixer (4.3.5) through a connecting shaft (6.2), one end of a hydraulic cylinder telescopic shaft (4.3.8) is fixedly connected with the hydraulic cylinder (4.3.7), the other end of the hydraulic cylinder telescopic shaft (4.3.8) is fixedly connected with a brake pad (4.3.9), and the hydraulic cylinder telescopic shaft (4.3.8) is parallel to the axle (6.3) and can horizontally and axially extend and retract; the brake pad (4.3.9) is horizontally corresponding to the groove on the inner side surface of the rail (6.4) and can be vertically attached and matched with the groove on the inner side surface of the rail (6.4); the hydraulic cylinder (4.3.7) is provided with a sensor (4.3.10) and a controller (4.3.11), the sensor (4.3.10) is connected with the remote control terminal (1.2) through a lead or a wireless remote controller, and the remote control terminal (1.2) is connected with the controller (4.3.11) through a lead or a wireless remote controller.
2. The multifunctional rail transit contact net tower wagon of claim 1, wherein the brake pad is of a (4.3.9) conical surface structure, and the end part is a groove with a small end face pointing to the inner side face of the rigid rail (6.4).
3. The multifunctional rail transit contact net tower wagon of claim 1, wherein the sensor is a pressure sensor.
CN202010520471.0A 2020-06-09 2020-06-09 Multifunctional rail transit contact net tower wagon Pending CN111645570A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112360905A (en) * 2020-10-29 2021-02-12 安徽国云智能科技有限公司 Automatic change linear parking equipment of assembly line
CN114274304A (en) * 2021-12-31 2022-04-05 贵州瑞气升腾实业有限公司 Manufacturing process of assembled concrete wallboard

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994020326A1 (en) * 1993-03-12 1994-09-15 S.C.L.E. S.A. Vehicle for the construction and maintenance of railway overhead contact lines
CN105751920A (en) * 2016-03-02 2016-07-13 湖南华铝机械技术有限公司 Intelligent multifunctional overhead contact system operation tower wagon
CN108017027A (en) * 2018-01-23 2018-05-11 成吉安 Urban rail transit contact network Intellectualized electric tower wagon
CN207608293U (en) * 2017-12-20 2018-07-13 张家口市天勤铁路电气化设备制造有限公司 A kind of firm delivery operation ladder vehicle of remote control power-assisted
CN108313940A (en) * 2018-03-27 2018-07-24 中铁建电气化局集团南方工程有限公司 A kind of full landform traveling light job vehicle
CN208646856U (en) * 2018-08-28 2019-03-26 中铁十二局集团电气化工程有限公司 Electrification railway contact net multifunction insulating tower wagon
CN214607176U (en) * 2020-06-09 2021-11-05 北京卓维堂科技有限公司 Multifunctional rail transit contact net tower wagon

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994020326A1 (en) * 1993-03-12 1994-09-15 S.C.L.E. S.A. Vehicle for the construction and maintenance of railway overhead contact lines
CN105751920A (en) * 2016-03-02 2016-07-13 湖南华铝机械技术有限公司 Intelligent multifunctional overhead contact system operation tower wagon
CN207608293U (en) * 2017-12-20 2018-07-13 张家口市天勤铁路电气化设备制造有限公司 A kind of firm delivery operation ladder vehicle of remote control power-assisted
CN108017027A (en) * 2018-01-23 2018-05-11 成吉安 Urban rail transit contact network Intellectualized electric tower wagon
CN108313940A (en) * 2018-03-27 2018-07-24 中铁建电气化局集团南方工程有限公司 A kind of full landform traveling light job vehicle
CN208646856U (en) * 2018-08-28 2019-03-26 中铁十二局集团电气化工程有限公司 Electrification railway contact net multifunction insulating tower wagon
CN214607176U (en) * 2020-06-09 2021-11-05 北京卓维堂科技有限公司 Multifunctional rail transit contact net tower wagon

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
朱家诚;安坤;马开峰;: "自行式电气化铁路接触网检修车梯的研制", 机械设计与制造, no. 03, 8 March 2016 (2016-03-08) *
翟玉霞;: "轻型接触网检修作业车的研制", 铁道机车车辆, no. 06, 25 December 2008 (2008-12-25) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112360905A (en) * 2020-10-29 2021-02-12 安徽国云智能科技有限公司 Automatic change linear parking equipment of assembly line
CN114274304A (en) * 2021-12-31 2022-04-05 贵州瑞气升腾实业有限公司 Manufacturing process of assembled concrete wallboard

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