Powered process bogie and its electrical control system

Abstract

The present invention relates to the technical field of locomotive maintenance equipment, and discloses a powered process bogie and its electrical control system, wherein the powered process bogie comprises: a frame, comprising a pair of side beams placed in parallel and a mounting seat vertically fixedly connected to the side beams; a wheel pair, mounted at the bottom of the frame; side bearings, fixedly connected above the two ends of the mounting seat, the side bearings comprising top side bearings and bottom side bearings, the top side bearings being hinged to the bottom side bearings; a driving device, comprising a battery box, a DC traction motor and a belt transmission structure, all connected to a controller; a braking device, comprising a friction block and a control box, the control box also being provided with a wireless receiver, which is connected to a manual remote controller for communication; a buffer device, mounted at the two ends of the side beams; a control device, comprising a control box, mounted on the frame; and a positioning device, mounted on the frame. The present invention has a high degree of automation and greatly improves the efficiency of locomotive body maintenance.

Description

Technical Field

[0001] The invention relates to a powered technical bogie and an electrical control system thereof, belonging to the technical field of locomotive maintenance equipment. Background Art

[0002] When a subway vehicle runs for a certain number of years or reaches a certain mileage, it is necessary to overhaul the vehicle frame to restore the original performance of the vehicle and reduce the failure rate of the vehicle. The process bogie is an important equipment for supporting and transferring the vehicle body during the overhaul of the subway vehicle frame, and its working performance directly affects the maintenance efficiency. The process bogies currently used in China are generally non-powered, need to be used in conjunction with a tractor, and can only realize the transfer of a single vehicle, which will generate additional waiting time and reduce work efficiency; and the existing process bogies have a low degree of automation, and the control structure of the process bogie is relatively complex, so it is necessary to design a highly automated powered process bogie. Summary of the invention

[0003] In view of the above-mentioned defects in the prior art, the present invention proposes a powered process bogie and an electrical control system thereof.

[0004] The power-type technical bogie described in the present invention comprises a frame, a wheel set, a side bearing, a driving device, a braking device, a buffer device, a control device and a positioning device, wherein:

[0005] The frame includes a pair of side beams placed in parallel and mounting seats vertically fixedly connected to the side beams, and traction rods parallel to the mounting seats are arranged at both ends of the side beams; the traction rods are used to cooperate with the road-rail vehicle to complete the vehicle transfer;

[0006] Wheel sets, installed at the bottom of the frame;

[0007] The side bearings are fixedly connected to the top of both ends of the mounting seat. The side bearings include top side bearings and bottom side bearings. The top side bearings are hinged to the bottom side bearings. The bottom side bearings and the top side bearings can make the side bearings have two working states, high and low, to support the vehicle bodies of different heights.

[0008] The driving device, including the battery box, the DC traction motor and the belt drive structure, can be detachably connected to the frame and connected to the controller;

[0009] The braking device includes a friction block and a control box. The friction block is detachably connected to the inner side of the side beam at the position corresponding to the wheel pair. The friction block is connected to the control box through an electric push rod. The control box is also provided with a wireless receiver for communication with the manual remote control.

[0010] Buffer devices, installed at both ends of the side beams; can prevent damage to the equipment in the event of a collision;

[0011] The control device includes a control box installed on the frame, a controller is arranged inside the control box, and a communication antenna is also arranged on the control box; the communication antenna can be connected to a manual remote controller to remotely control the movement of the process bogie;

[0012] Positioning device, installed on the frame; can detect the real-time position of the process bogie and send it to the controller.

[0013] Preferably, the outer side of the side beam is also provided with a lifting lug, through which the process bogie can be hoisted as a whole, which is convenient for transportation and disassembly.

[0014] Preferably, the wheelset comprises a wheel, an axle and a pulley, the wheels are press-fitted on both ends of the axle, and the pulley is installed in the middle of the axle.

[0015] Preferably, the top side bearing is hinged to the bottom side bearing at one side by a hinge and is detachably connected by a bolt pair, and an anti-displacement support plate is provided at the top of the top side bearing and the bottom side bearing. The hinge facilitates the placement of the top side bearing when the top side bearing and the bottom side bearing are disassembled, and the anti-displacement support plate can prevent the vehicle body from deformation and ensure that it does not shift during the movement of the vehicle.

[0016] Preferably, a handle is provided on one side of the top side bearing, which is convenient for an operator to use to complete the disassembly and installation of the top side bearing and the bottom side bearing.

[0017] Preferably, the frame is also provided with a power indicator light which emits a red light to indicate charging when the battery power is low.

[0018] Preferably, an iron shoe storage box is installed below the frame, and iron shoes are placed inside the iron shoe storage box, and the iron shoes are connected to the frame through hanging chains. Using the iron shoes in a non-working state can achieve an effective anti-slip effect on the process bogie.

[0019] Preferably, a buffer pad is provided on one side of the bottom side bearing that is hinged to the top side bearing, so as to reduce the collision between the bottom side bearing and the top side bearing when the high and low frame states are switched, thereby preventing the side bearing from being damaged.

[0020] The electrical control system of a powered technical bogie according to the present invention comprises:

[0021] The main control module receives the operation information of each module of the system and controls the execution of other modules to realize the control of the process bogie;

[0022] A driving module is used to receive control instructions from the main control module and drive the process bogie to move forward or stop;

[0023] The brake module receives control from the wireless remote control module to decelerate and brake the process bogie;

[0024] The wireless remote control module sends control instructions to the main control module and the brake module to achieve remote control of the forward, backward and parking of the process bogie;

[0025] A battery management module monitors the battery usage status and sends the usage status information to the main control unit;

[0026] Safety protection and alarm module, monitoring the use status of the process bogie and outputting corresponding alarm signals or safety prompts;

[0027] The positioning module can send the real-time position, moving trajectory and current status information of the bogie to the main control module.

[0028] Preferably, the drive module is encapsulated and integrated with a plurality of control units of traction motors.

[0029] Preferably, the battery usage status information includes battery temperature, voltage and current.

[0030] The power-type technical bogie and its electrical control system described in the present invention have the following beneficial effects:

[0031] (1) No need to be used in conjunction with a tractor, making the structure simple;

[0032] (2) The high-low frame conversion can realize the maintenance of vehicles at different heights;

[0033] (3) High degree of automation greatly improves maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a top view of the powered process bogie.

[0035] Figure 2 It is a structural diagram of the framework.

[0036] Figure 3 It is a structural diagram of a wheelset.

[0037] Figure 4 It is a structural diagram of the side bearing.

[0038] Figure 5 It is a structural diagram of the braking device.

[0039] Figure 6 It is the front view of the powered process bogie.

[0040] Figure 7 It is a side view of a powered process bogie.

[0041] Figure 8 It is the block diagram of the electrical control system of the powered process bogie.

[0042] In the figure: 1. frame; 11. side beam; 12. mounting seat; 13. traction rod; 14. lifting lug; 2. wheelset; 21. shaft end; 22. wheel; 23. axle; 24. pulley; 3. side bearing; 31. top side bearing; 311. anti-shift support plate; 312. handle; 32. bottom side bearing; 321. buffer pad; 33. hinge; 4. driving device; 41. battery box; 42. traction motor; 43. V-belt; 5. braking device; 51. control box; 52. electric push rod; 53. friction block; 6. buffer device; 7. control device; 8. positioning device; 9. iron shoe; 10. hanging chain. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Embodiment 1:

[0045] like Figures 1 to 7 As shown, the power-type process bogie of the present invention comprises eight parts: a frame 1, a wheelset 2, a side bearing 3, a driving device 4, a braking device 5, a buffer device 6, a control device 7 and a positioning device 8, wherein:

[0046] The frame 1 includes a pair of side beams 11 placed in parallel and a mounting seat 12 vertically fixedly connected to the side beams 11. The wheelset 2, the side bearing, the driving device 4, the braking device 5, the buffer device 6, the control device 7 and the positioning device 8 are all installed on the frame 1. The frame 1 is the skeleton component of the process bogie, which transmits the static and dynamic loads between the car body and the wheelset 2. The frame 1 is welded with high-quality steel and plates, has sufficient rigidity and strength, and has a large load-bearing safety factor, which can ensure the relative position of the wheelset 2 and the frame 1 and the stable and reliable operation of the car body; on the side beam 1 1 is welded with a traction rod 13 at each end, and the traction rod 13 and the side beam 11 form a rectangular frame. The mounting seat 12 is located in the middle of the rectangular frame. When the driving device 4 or the braking device 5 fails, the traction rod 13 can cooperate with the road-rail vehicle to complete the vehicle transportation without affecting the normal production operation; two lifting ears 14 are welded on the outer sides of the two side beams 11, respectively, and the process bogie can be hoisted as a whole with a sling, which is convenient for the transportation and loading and unloading of the process bogie; a power indicator light is also provided at the front of the process bogie, which emits a red light to indicate charging when the battery is low.

[0047] The wheelset 2 is mainly composed of a wheel 22, an axle 23, an axle end 21 and a pulley 24. The wheels 22 are pressed at both ends of the axle 23, and are a four-wheel structure. The four guide wheels are in contact with the track at the same time, and the loads are basically balanced to avoid safety accidents when a certain guide wheel is subjected to excessive force. The wheels 22 are in the form of a wheel rim tread, and their surfaces are specially heat treated to ensure wear resistance and sufficient strength. The axle end 21 is provided with an inspection axle box cover, in which the bearing is reliably lubricated, wear-resistant, and runs smoothly. The bearing has a high impact resistance. The wheelset 2 is firmly connected to the side beam 11 of the frame 1 through the axle end 21, and the pulley 24 is pressed in the middle of the axle 23. The wheelset 2 is mainly used as a load-bearing component, bearing all static and dynamic loads, guiding the vehicle on the track, and can also transmit the braking force of the brake device 5, and transmit the traction power of the drive device 4 to the track through the belt and pulley 24.

[0048] The main structure of the side bearing 3 is a rectangular parallelepiped, including a bottom side bearing 31 and a top side bearing 32. The bottom side bearing 32 is installed on both ends of the mounting seat 12 by bolts at four corners, and the bottom 31 of the top side bearing is connected to the bottom side bearing 32 by bolts at four corners and a hinge 33 on one side. Therefore, the side bearing 3 can be divided into two working states: high frame and low frame. The height of the low frame is 1200mm, and the height of the high frame is 1600mm. The center distance between the bottom side bearing 32 and the bottom side bearing 31 is 1900mm, and it can be adjusted within a certain range; the upper surfaces of the top side bearing 31 and the bottom side bearing 32 are both provided with anti-displacement support plates 311, which are used to support the vehicle body and the vehicle When moving, the part connected with the vehicle body will not be damaged, and the vehicle body can be prevented from deformation. When the vehicle moves, it is guaranteed not to tilt or shift. The anti-shift support plate is made of nylon plate material. The nylon plate material has high mechanical strength and toughness, good aging resistance, good mechanical vibration reduction ability, and no creep phenomenon during precise and effective control. It can better support and fix the vehicle body, and the nylon plate is cheap, which reduces the manufacturing cost of the process bogie. A handle 312 is also provided on one side of the top side bearing 31. When the side bearing 3 is switched between high and low frames, the top side bearing 31 is flipped to the side with the hinge 33 through the handle 312, and the bolts at the four corners are adjusted to tighten it to the high frame state and loosen it to the low frame state. A buffer pad 321 is provided on the side of the bottom side bearing 32 that is hinged to the top side bearing 31. The buffer pad 321 can reduce the impact between the bottom side bearing 32 and the top side bearing 31 when the high and low frame states are switched, preventing the side bearing 3 from being damaged.

[0049] The driving device 4 includes a battery box 41, a traction motor 42, and a belt transmission system. The traction motor 42 and the battery box 41 are respectively installed on the mounting base 12. The battery box 41 provides power for the DC traction motor 42. The battery adopts a maintenance-free cadmium nickel battery and is charged by a fast charging device. The traction motor 42 adopts a DC traction motor 42 with a rated voltage of 110V, a rated power of 40kW, and a rated speed of 1000r / min. It is a self-ventilated and heat-dissipating motor; the belt transmission structure includes a pulley installed on the output shaft of the DC traction motor 42, and a V-belt wrapped around the pulley 24 in the middle of the axle 23 and the pulley installed on the output shaft. The output power of the traction motor 42 is transmitted to the wheelset 2 through the V-belt 43. There are two sets of traction motors 42 drives on each process bogie.

[0050] The braking device 5 includes a friction block 53 and a control box 51. The friction block 53 is detachably connected to the inner side of the side beam 11 at the position corresponding to the wheelset 2. The friction block 53 is made of rubber and is connected to the control box 51 through an electric push rod 52. The control box 51 is also provided with a wireless receiver for communication with a manual remote control. A set of braking devices 5 is provided on each wheelset 2. The manual remote control can be used to control the rubber block to move close to or away from the wheel 22, so that the rubber block contacts or separates from the side of the wheel 22, thereby achieving the purpose of braking the vehicle. The rubber block is a wearable part and can be easily replaced at any time.

[0051] The buffer device 6 is a polyurethane buffer, which is respectively installed at the two ends of the two side beams 11, and there are four of them in total. The polyurethane buffer can absorb energy when the process bogie moves and collides, preventing damage to the equipment. The polyurethane buffer is easy to install, has a good buffering effect, and is impact-resistant.

[0052] The control device 7 includes a control chassis, which is installed on the mounting base 12. A controller is provided inside the control chassis, and the controller is respectively connected to electrical components such as the battery box 41, the traction motor 42, and the control box 51; a communication antenna is also provided on the control chassis, which can be connected to a manual remote controller through the communication antenna to remotely control the movement of the process bogie.

[0053] The positioning device 8, which adopts a GPS device and is installed on the frame 1, can detect the real-time position of the process bogie and send it to the controller.

[0054] An iron shoe storage box is also installed under the frame 1, and iron shoes 9 are placed inside the iron shoe storage box. Each process bogie is equipped with two iron shoes 9, and the iron shoes 9 are connected to the frame 1 through hanging chains 10. The hanging chains 10 are sturdy and durable. In the non-working state, the iron shoes 9 are placed behind the wheels 22 to prevent the vehicle from slipping after parking. In the working state, the iron shoes 9 are placed in the iron shoe storage box for easy storage.

[0055] like Figure 8 As shown, the electrical control system of the power-type process bogie described in the present invention includes seven modules, namely, a main control module, a drive module, a brake module, a wireless remote control module, a battery management module, a safety protection and alarm module, and a positioning module:

[0056] The main control module, as the core module of the electrical control system, receives signals from other modules of the system through its external interfaces, and sends instructions to relevant execution modules through various interfaces to achieve overall control of the process bogie.

[0057] The drive module and the drive controller receive the action and speed instructions issued by the main control module through digital quantity, analog quantity or CAN bus, and measure the current, voltage, temperature, speed, torque, electromagnetic flux and other data through sensors, and transmit them to the processor in the form of electrical signals. The processor gives the corresponding control signal after calculation, which is converted and amplified by the integrated power converter and acts on the traction motor 42. At the same time, by comparing the encoder position feedback signal, the synchronous driving of the two wheel pairs 2 is guaranteed to realize the forward and backward movement of the process bogie. In order to save cost and installation space, the drive controller adopts a "one-to-two" solution, that is, the control units of two sets of traction motors 42 are integrated in one module package.

[0058] The wireless remote control module collects the movements of the manual remote control, converts them into electrical signals, and then sends the signals to the main control module and the brake module.

[0059] The brake module receives the instruction from the wireless remote control module, controls the friction block 53 to be close to the wheel 22, and realizes the deceleration braking of the process bogie.

[0060] The battery management module detects the voltage and temperature of the single cells in each battery pack, as well as the total voltage of the two battery packs after filing, and the total current during charging and discharging, and inputs the monitoring data into the main control module for decision-making.

[0061] The safety protection and alarm module monitors the battery usage status, prompts whether to charge through the power indicator light, receives instructions from the main control module whether to take safety measures, and outputs corresponding alarm signals or safety prompts.

[0062] The positioning module sends the real-time position, moving trajectory and current status information of the process bogie to the main control module.

[0063] Embodiment 2:

[0064] Based on Example 1, the controller is connected to the intelligent maintenance system through a communication antenna. The controller can send information such as the real-time position, moving trajectory, current status, etc. of the process bogie to the intelligent maintenance system, and can realize management functions such as electronic fence, real-time warning, data analysis, data storage and query, etc. It can also receive instructions from the remote control terminal to realize automatic control and maintenance.

[0065] The use process of the present invention is as follows: the power-type process bogie and its electrical control system described in the present invention are provided with traction power by two sets of batteries, and two DC traction motors 42 drive the wheels 2 to rotate through belt transmission, thereby driving the vehicle body to move. Each wheels 2 is equipped with a braking device 5 to realize the emergency stop function. The traction motor 42 and the braking device 5 can be controlled by a manual remote control, and the positioning device 8 can transmit the vehicle position in real time to realize the automatic control and maintenance of the vehicle.

[0066] The present invention can be widely used in locomotive maintenance equipment occasions.

[0067] The circuits and electronic components involved are all existing technologies and can be fully implemented by those skilled in the art.

[0068] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powered technical bogie, characterized in that: It comprises a frame (1), a wheelset (2), a side bearing (3), a driving device (4), a braking device (5), a buffer device (6), a control device (7) and a positioning device (8), wherein: The frame (1) comprises a pair of side beams (11) placed in parallel and a mounting seat (12) vertically fixedly connected to the side beams (11), and traction rods (13) parallel to the mounting seat (12) are arranged at both ends of the side beams (11); A wheelset (2) is mounted on the bottom of the frame (1); A side support (3) is fixedly connected to the upper part of both ends of the mounting seat (12), the side support (3) comprises a top side support (31) and a bottom side support (32), and the top side support (31) is hinged to the bottom side support (32); A driving device (4), comprising a battery box (41), a traction motor (42) and a belt transmission structure, all of which can be detachably connected to the frame (1) and connected to a controller; The braking device (5) comprises a friction block (53) and a control box (51), wherein the friction block (53) is detachably connected to the inner side of the side beam (11) at a position corresponding to the wheel pair (2), the friction block (53) is connected to the control box (51) via an electric push rod (52), and a wireless receiver is also provided in the control box (51) for communication with a manual remote controller; A buffer device (6) is installed at two ends of the side beam (11); A control device (7) comprises a control chassis, which is installed on the frame (1), a controller is provided inside the control chassis, and a communication antenna is also provided on the control chassis; A positioning device (8) mounted on the frame (1); The outer side of the side beam (11) is also provided with a lifting lug (14); The wheel set (2) comprises a wheel (22), an axle (23) and a pulley (24), wherein the wheel (22) is press-fitted onto both ends of the axle (23); The top ends of the top side bearing (31) and the bottom side bearing (32) are both provided with anti-displacement support plates (311); A handle (312) is provided on one side of the top side support (31); The frame (1) is also provided with a power indicator light; An iron shoe storage box is installed below the frame (1), and an iron shoe (9) is placed inside the iron shoe storage box. The iron shoe (9) is connected to the frame (1) via a hanging chain (10).

2. An electrical control system for a powered technical bogie, characterized in that: include: The main control module receives the operation information of each module of the system and controls the execution of other modules to realize the process bogie control; A driving module is used to receive control instructions from the main control module and drive the process bogie to move forward or stop; The brake module receives control from the wireless remote control module to decelerate and brake the process bogie; The wireless remote control module sends control instructions to the main control module and the brake module to achieve remote control of the forward, backward and parking of the process bogie; A battery management module monitors the battery usage status and sends the usage status information to the main control module; Safety protection and alarm module, monitoring the use status of the process bogie and outputting corresponding alarm signals or safety prompts; The positioning module sends the real-time position, movement trajectory, and current status information of the bogie to the main control module; The drive module is encapsulated and integrated with a control unit of a plurality of traction motors (42); The battery usage status information includes battery temperature, voltage and current.

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