CN107650897B - Air brake device of mining electric locomotive and mining electric locomotive - Google Patents
Air brake device of mining electric locomotive and mining electric locomotive Download PDFInfo
- Publication number
- CN107650897B CN107650897B CN201711037053.0A CN201711037053A CN107650897B CN 107650897 B CN107650897 B CN 107650897B CN 201711037053 A CN201711037053 A CN 201711037053A CN 107650897 B CN107650897 B CN 107650897B
- Authority
- CN
- China
- Prior art keywords
- reversing valve
- valve
- air
- electric locomotive
- braking
- 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
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 86
- 238000005065 mining Methods 0.000 title claims abstract description 83
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 gangue Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/26—Compressed-air systems
- B60T13/40—Compressed-air systems indirect, i.e. compressed air booster units indirect systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention provides an air brake device of a mining electric locomotive and the mining electric locomotive. The air brake device of the mining electric locomotive is provided with a first reversing valve, a second reversing valve and more than two groups of brake cylinders, wherein: a braking passage is formed between the first reversing valve and the braking cylinder, and a relieving passage is formed between the first reversing valve and the braking cylinder; the second reversing valve is arranged in the braking passage and is provided with more than two air outlets, each air outlet is respectively connected with a corresponding group of braking cylinders, and the second reversing valve can control the communication and disconnection between each air outlet and the corresponding group of braking cylinders. The air brake device of the mining electric locomotive provided by the invention can realize braking under the condition of partial braking cylinder faults, thereby improving the reliability and safety of a braking system of the mining electric locomotive.
Description
Technical Field
The invention relates to an air brake device, in particular to an air brake device of a mining electric locomotive and the mining electric locomotive, and belongs to the technical field of mining locomotives.
Background
The mining electric locomotive is a traction device for long-distance transportation in underground transportation lanes and ground, and is used for hauling a train consisting of mine cars or human vehicles to transport on a track so as to finish the transportation of coal, gangue, materials, equipment, personnel and the like.
The main components of the mining electric locomotive comprise a frame, a running part (running gear), a braking system, a traction transmission system, a control system and the like, wherein the braking system is one of the most important mechanical components and generally comprises three braking devices of electric braking, spring braking and air braking, and the air braking is generally used as emergency braking.
The working principle of the main stream air brake device in the current mining electric locomotive is shown in fig. 1, compressed air generated by an air compressor 11 enters a main air cylinder 13 through a one-way valve 12, is purified by a purifying device 20, and is provided for a manual reversing valve 40 after pressure is regulated by a pressure reducing valve 30. The manual directional valve 40 has a braking end and a relieving end, and corresponding passages are formed between the braking end and the relieving end and the brake cylinder 50. When the driver places the manual reversing valve 40 at the braking end, i.e. the end I in FIG. 1, purified compressed air enters the cylinder body of the brake cylinder 50 through a corresponding passage to push the piston in the brake cylinder 50 to move, compress the release spring and drive the piston push rod to move, so as to push the basic brake lever to realize braking; when the manual reversing valve 40 is placed at the releasing end, namely the end II in the drawing, the purified compressed air will lead the releasing spring in the brake cylinder 50 to spring open, and the compressed air in the cylinder body of the brake cylinder 50 is discharged along with the releasing end, so that the piston and the piston push rod are restored to the original positions, and the basic brake lever is released, thereby realizing the releasing.
Although the air brake device can meet the requirement of emergency braking of the mining electric locomotive in a normal working state, once any one of the brake cylinders 50 is damaged, such as the brake cylinder 50 leaks air, a passage between the brake cylinder 50 and a brake end of the manual reversing valve 40 leaks air and causes braking failure, so that safety production is affected.
Disclosure of Invention
The invention provides an air brake device of a mining electric locomotive and the mining electric locomotive, which are used for solving the problem that in the conventional air brake device, the braking function of the mining electric locomotive is affected due to the fact that part of braking cylinders are failed.
On one hand, the invention provides an air brake device of a mining electric locomotive, which is provided with a first reversing valve, a second reversing valve and more than two groups of brake cylinders, wherein: a braking passage is formed between the first reversing valve and the braking cylinder, and a relieving passage is formed between the first reversing valve and the braking cylinder; the second reversing valve is arranged in the braking passage and is provided with more than two air outlets, each air outlet is respectively connected with a corresponding group of braking cylinders, and the second reversing valve can control the communication and disconnection between each air outlet and the corresponding group of braking cylinders.
Further, the second reversing valve is a pneumatic reversing valve, an electric control reversing valve or a manual reversing valve.
Further, the air brake device is provided with two groups of brake cylinders, and the second reversing valve is a three-position five-air-control reversing valve.
Further, the first reversing valve is a pneumatic reversing valve, an electric control reversing valve or a manual reversing valve.
Further, a proportional valve is also arranged between the first reversing valve and the second reversing valve.
Further, the proportional valve is an electric control proportional valve, and the proportional valve is connected with a control switch.
Further, the first reversing valve is an electric control reversing valve and is connected with the control switch.
Further, the air brake device is further provided with a pressure reducing valve, and the pressure reducing valve is connected with the first reversing valve.
In another aspect, the invention provides a mining electric locomotive having a frame and the air brake device described above, the air brake device being mounted on the frame.
Further, the mining electric locomotive is a mining storage battery type electric locomotive, a mining overhead wire type electric locomotive or a mining super capacitor type electric locomotive.
According to the air brake device of the mining electric locomotive, the second reversing valve is arranged on the brake passage between the first reversing valve and the brake cylinder, the plurality of outlets of the second reversing valve are respectively connected with the brake cylinders of the corresponding groups, and the communication and the cutting-off between each outlet and the brake cylinders of the corresponding groups can be controlled, so that when part of the brake cylinders are in failure, namely compressed air can still enter the brake cylinders of other groups which are not in failure, and the braking is realized. Therefore, the braking system of the mining electric locomotive has extremely high reliability and safety.
According to the mining electric locomotive provided by the invention, due to the fact that the air brake device is arranged, the air brake device can still realize braking under the condition that part of brake cylinders are in failure, so that the reliability of the mining electric locomotive is improved, and the safety production is ensured.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram of the working principle of an air brake device in an existing mining electric locomotive;
FIG. 2 is a schematic diagram illustrating an air brake device of an electric mining locomotive according to an embodiment of the present invention;
fig. 3 is a schematic diagram of the working principle of the second reversing valve in the normal state according to the first embodiment of the invention;
fig. 4 is a schematic diagram of the working principle of the second reversing valve in the first embodiment of the present invention in a fault state;
fig. 5 is a schematic diagram illustrating an air brake device of an electric mining locomotive according to a second embodiment of the present invention.
Reference numerals illustrate:
11-an air compressor; 12-a one-way valve;
13-a total air cylinder; 14-a safety valve;
15-a pressure relay; 20-a purification device;
21-a filter; 22-an oil-water separator;
30-a pressure reducing valve; 40-a manual reversing valve;
41-a first reversing valve; 42-a second reversing valve;
50-a brake cylinder; 60-braking path;
70-relief pathway; 80-proportional valve.
Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Mining electric locomotives are a type of traction equipment for rail vehicle transportation. Mining electric locomotives can be generally classified into overhead, battery and super capacitor electric locomotives according to the source of electric energy.
The mining electric locomotive mainly comprises a mechanical part and an electric part, wherein the mechanical part comprises a frame, a wheel set, a bearing box, a spring bracket, a braking system, a sanding device and a connecting buffer device; the electrical part comprises a motor, a controller, a resistor box, an air automatic switch (overhead wire type) or a storage battery (storage battery) or a super capacitor power supply device (super capacitor type).
The frame of the mining electric locomotive is a main body part of the mining electric locomotive and generally adopts a frame type welding steel structure. The frame mainly comprises a frame beam, a buffer and a shaft clamp. Wherein the beam is the main bearing component of the mine car; buffering directly bears traction and impact force; the axle clip is a connecting body of the frame and the wheel set, and at present, a bolt type is mostly adopted. The frame is provided with equipment such as a cab, a controller, a running gear, a braking system, a motor, a resistor box and the like.
An electric control cabinet and an operating console are arranged in the cab, and glass windows are arranged in front of and on two sides of the cab so as to facilitate observation. The wheel set is a walking device of the mining electric locomotive. The axle box is a short for bearing box, and has two rows of rolling bearings mounted in the axle box and matched with axle journals at two ends of wheel pair. The sliding grooves on the two sides of the axle box are matched with the guide rail on the frame, and the seat holes for placing the spring brackets are arranged on the sliding grooves. The spring bracket is a structure for relieving impact and vibration to a locomotive in the operation of the mining electric locomotive. The sand spraying device is used for removing sand on the rail surface at the front edge of the wheel so as to increase the friction coefficient between the wheel and the rail, thereby obtaining larger traction force or braking force.
The braking system of mining electric locomotives generally comprises three braking devices, namely an electric braking device, a spring braking device and an air braking device. The electric brake is the conventional brake of the mining electric locomotive, and can implement automatic conversion among feedback brake, resistance brake and zero brake; spring braking is typically used as a parking brake during long-term parking; whereas air brakes are typically used as emergency brakes.
Example 1
Fig. 2 is a schematic diagram illustrating an operation principle of an air brake device of an electric mining locomotive according to an embodiment of the present invention.
As shown in fig. 2, the air brake device has a first directional valve 41, a second directional valve 42, and two or more sets of brake cylinders 50, wherein: a brake passage 60 is formed between the first direction valve 41 and the brake cylinder 50, and a relief passage 70 is formed between the first direction valve 41 and the brake cylinder 50; the second direction valve 42 is disposed in the brake passage 60, and the second direction valve 42 has two or more air outlets (not shown), each of which is connected to a corresponding group of brake cylinders 50, and the second direction valve 42 is capable of controlling communication and disconnection between each air outlet and a corresponding group of brake cylinders 50.
Specifically, the air brake device includes an air compressor 11, a check valve 12, a main cylinder 13, a purification device 20, and the like. Compressed air generated by an air compressor 11 (abbreviated as an air compressor), for example, compressed air having a pressure of not more than 0.8MPa, passes through a check valve 12, enters a main reservoir 13, is purified by a purifying device 20, and is supplied to a first reversing valve 41.
The first reversing valve 41 has a braking end and a relieving end. When the mining electric locomotive needs to be braked, such as emergency braking, a driver places the first reversing valve 41 at the braking end, and compressed air enters the second reversing valve 42 through the braking passage 60.
In a normal state, that is, no failure occurs in all the brake cylinders 50, and no leakage occurs in the passages between all the brake cylinders 50 and the second reversing valves 42, each air outlet of the second reversing valves 42 is respectively communicated with the brake cylinders 50 of the corresponding group, that is, the whole brake passage 60 is in a communication state, so that compressed air is divided into multiple paths by the second reversing valves 42 and enters the cylinders of the brake cylinders 50 of the corresponding group from each air outlet respectively, the pistons (not shown) in the brake cylinders 50 are pushed to move, the release springs (not shown) are compressed and the piston push rods are driven to move (not shown), and then the basic brake levers (not shown) are pushed to realize emergency braking.
In a fault condition, such as when a brake cylinder 50 in a certain group or groups leaks, the second reversing valve 42 cuts off a passage between the corresponding air outlet and the brake cylinder 50 in the faulty group, but still enables communication between the brake cylinders 50 in the non-faulty group, i.e. compressed air can still enter the brake cylinders 50 in the non-faulty group from the second reversing valve 42 and brake is implemented.
When the mining electric locomotive does not need emergency braking, a driver places the first reversing valve 41 at the relieving end, compressed air from the first reversing valve 41 passes through the relieving passage 70 to lead the relieving spring in the brake cylinder 50 to be sprung open, and the compressed air in the cylinder body of the brake cylinder 50 is discharged along with the relieving spring, so that the piston and the piston push rod are restored to the original positions, and the basic brake lever is released to realize the relieving.
Therefore, the air brake device provided by the embodiment can still provide braking force under the condition that one or a plurality of brake cylinders 50 are damaged or the pipeline leaks gas and other faults occur, so that the emergency braking of the mining electric locomotive is realized, and the reliability of the braking system of the mining electric locomotive and the safety of the mining electric locomotive are improved.
In this embodiment, the second directional valve 42 may be a pneumatic directional valve, an electric-controlled directional valve (also referred to as "electromagnetic directional valve"), or a manual directional valve. In order to more fully explain the principle and effect of the present embodiment, the following will further describe the pneumatic control reversing valve as an example:
fig. 3 is a schematic diagram of the working principle of the second reversing valve in the normal state according to the first embodiment of the invention; fig. 4 is a schematic diagram of the working principle of the second reversing valve in the fault state according to the first embodiment of the invention.
Referring to fig. 2, 3 and 4, the second direction valve 42 has an air inlet for communicating with the first direction valve 41, i.e., at P (hereinafter referred to as "air inlet P") in fig. 3 and 4; the second direction valve 42 further has at least two air outlets, such as the a and B in fig. 3 and 4 (hereinafter referred to as the "air outlet a" and the "air outlet B", respectively), the specific number of the air outlets corresponds to the number of groups of the brake cylinders 50, for example, each group of the brake cylinders 50 may be connected to one air outlet, for example, the air brake device shown in fig. 2 has two groups of four brake cylinders 50, and the second direction valve 42 has two air outlets, for example, the second direction valve 42 may be a three-position five-way air control direction valve.
With further reference to fig. 3, when emergency braking is required, if all the brake cylinders 50 are working normally, no failure such as air leakage occurs, the compressed air from the first reversing valve 41 will enter the second reversing valve 42 through the air inlet P, then be split into two routes and enter the cylinders of the brake cylinders 50 of the corresponding group through the air outlet a and the air outlet B, respectively, so as to realize emergency braking.
With further reference to fig. 4, if a failure occurs, such as a blow-by of one or both of the brake cylinders 50 in the corresponding group with the air outlet a, the spool (not shown) of the second reversing valve 42 will move to the right, such that compressed air can no longer flow from the air inlet P to the air outlet a, and thus the passage between the air outlet a and the brake cylinders 50 in its corresponding group will be cut off, while still compressed air can flow from the air inlet P to the air outlet B, and then into the brake cylinders 50 in its corresponding group, thereby effecting braking.
Conversely, if the brake cylinder 50 of the corresponding group of the air outlet B fails, the spool of the second reversing valve 42 will move to the left, the passage between the air outlet B and the brake cylinder 50 of the corresponding group will be cut off, and the air outlet a and the brake cylinder 50 of the corresponding group will still be able to communicate, and compressed air will still be able to enter the brake cylinder 50 of the corresponding group from the air inlet P via the air outlet a, and the emergency braking function will also be able to be implemented.
The second reversing valve 42 may specifically be a pneumatic reversing valve controlled by pressurization control, pressure relief control and differential pressure control, and the movement of the valve core in the second reversing valve 42 is controlled by pressure change, so as to control the communication and disconnection of the passages between each air outlet and the corresponding group of brake cylinders.
Taking a pneumatic control reversing valve adopting a differential pressure control mode as an example, when a passage corresponding to one air outlet leaks air or a brake cylinder 50 corresponding to the air outlet fails, the pressure in the passage corresponding to the air outlet side is reduced, the valve core of the pneumatic control reversing valve automatically moves under the action of the pressure difference, the passage is cut off, and passages between other air outlets and the brake cylinders of the corresponding groups still remain communicated. Thus enabling the second directional valve 42 to automatically control the communication and disconnection between each air outlet port and the corresponding group of brake cylinders 50. The working principle of the pneumatic reversing valve for pressurization control and pressure relief control is the same as that of the pneumatic reversing valve, and is not described in detail herein.
Therefore, when the second reversing valve 42 is a pneumatic reversing valve, if the brake cylinder 50 has a failure such as air leakage, the valve core in the second reversing valve 42 can automatically sense the failure and automatically move due to the pressure change, and finally successful braking is realized.
The second direction valve 42 may be an electric control direction valve (electromagnetic direction valve) or a manual direction valve, in addition to a pneumatic direction valve. Of course, other types of reversing valves and corresponding control modes commonly used in the art can be adopted, and those skilled in the art can reasonably select according to practical situations, so that the reversing valve is not particularly limited.
The air compressor 11, the check valve 12 and the main air cylinder 13 in this embodiment may be identical to corresponding devices in the conventional air brake device at present, and this embodiment is not limited herein. Wherein, a safety valve 14 and a pressure relay 15 can be further arranged on the main air cylinder 13, so that the safety and stability of the whole air brake device can be improved, as shown in fig. 2.
The purification device 20 in this embodiment may be reasonably set according to the practical working condition environment of the mining electric locomotive, for example, may include at least one filter 21 and at least one oil-water separator 22.
With further reference to fig. 2, compressed air generated by the air compressor 11 enters the main air cylinder 13 through the check valve 12, and then enters the purifying device 20 for purifying treatment: the compressed air is filtered by a filter 21 to remove solid particles, then purified by an oil-water separator 22 to remove impurities such as water, oil and the like in the compressed air, and finally further filtered by the filter 21 to obtain the purified compressed air. The pressure of the purified compressed air is regulated to a predetermined pressure by the pressure reducing valve 30, and then supplied to the first reversing valve 41.
The first reversing valve 41 in this embodiment may be a reversing valve commonly used in a conventional mining electric locomotive, for example, may be a pneumatic reversing valve, an electric reversing valve, or a manual reversing valve 40, and the embodiment is not particularly limited herein.
With further reference to fig. 2, in order to control the magnitude of the braking force, a pressure reducing valve 30 capable of adjusting the pressure of the compressed air to a preset magnitude, for example, 0.5MPa for the compressed air having a pressure of 0.8MPa may be installed between the main reservoir 13 and the first direction valve 41.
The brake cylinder 50 in this embodiment may be a brake cylinder 50 commonly used in a conventional mining electric locomotive, for example, a brake cylinder of a railway wagon brake device described in chinese patent application 200910063456.1, and the embodiment is not particularly limited herein.
Specifically, the number of brake cylinders 50 in each group of brake cylinders 50 is not particularly limited, and may be appropriately set according to actual requirements, for example, each group of brake cylinders 50 includes one, two or more brake cylinders 50.
The air brake device provided by the embodiment can still provide braking force under the condition that one or a plurality of brake cylinders 50 are damaged or a pipeline is in fault, so that the emergency braking of the mining electric locomotive is realized, and the reliability and the safety of the mining electric locomotive are improved.
Example two
On the basis of the first embodiment, the air brake device of the mining electric locomotive is further described in a supplementary mode. The non-illustrated portions of this embodiment are the same as those of the first embodiment.
With continued reference to fig. 5, to effectively control the pressure of the compressed air introduced into the brake cylinder 50 to further adjust the magnitude of the braking force, a proportional valve 80 may be installed in the brake passage 60 between the first and second directional valves 41 and 42.
In this embodiment, the proportional valve 80 on the brake passage 60 can adjust the pressure of the compressed air from the first reversing valve 41 and supply the compressed air with the adjusted pressure to the second reversing valve 42, so that the magnitude of the braking force can be adjusted, and the braking performance and reliability of the air brake device are further improved.
Specifically, the proportional valve 80 may be an electrically controlled proportional valve, which is connected to a control switch (not shown), that is, the operation of the proportional valve 80 is controlled by the control switch, for example, a servo valve commonly used in the art may be selected.
In addition, the braking force of the mining electric locomotive can be reasonably controlled through the cooperation between the proportional valve 80 and the pressure reducing valve 30, the safety and the reliability of the mining electric locomotive are improved, and the service life of the mining electric locomotive can be prolonged.
Further, the above-mentioned proportional valve 80 may cooperate with the first reversing valve 41, for example, the proportional valve 80 is an electrically controlled proportional valve, the first reversing valve 41 is also an electrically controlled reversing valve, and the same control switch is connected between the proportional valve 80 and the first reversing valve 41, so that the proportional valve 80 and the first reversing valve 41 can be controlled to cooperate with each other through the same control switch, and the electrically controlled automation of the operation of the air brake device is realized.
And, since the volume of the electronically controlled directional valve is smaller and the reaction is faster, the operation sensitivity of the entire air brake device can be improved when the first directional valve 41 is an electronically controlled directional valve.
The air brake device provided by the embodiment can still provide braking force under the condition that one or a plurality of brake cylinders 50 are damaged or a pipeline leaks gas and other faults occur, so that the emergency braking of the mining electric locomotive is realized, and the reliability of a braking system of the mining electric locomotive and the safety of the mining electric locomotive are improved. In addition, the magnitude of the braking force can be controlled more effectively, so that the reliability of the mining electric locomotive is further improved.
Example III
On the basis of the first embodiment or the second embodiment, the embodiment provides a mining electric locomotive, in particular a mining storage battery electric locomotive, which is provided with a frame and an air brake device, wherein the air brake device is arranged on the frame. The structure and function of the air brake device are the same as those of the foregoing embodiments, and will not be described herein.
The electric locomotive comprises a mechanical part and an electric part, wherein the mechanical part comprises a frame, the air braking device arranged on the frame, a transmission device, an axle box, a wheel set, a spring bracket and the like, and the electric part comprises a motor, an explosion-proof bolt, a controller, a resistor box, a storage battery and the like. The direct current provided by the storage battery enters the motor through the explosion-proof bolt, the controller and the resistor box to drive the motor to operate. The motor drives the wheels to rotate through the transmission device, so that the train is pulled to run.
The air brake device of the mining electric locomotive provided by the embodiment can still realize the function of emergency braking when part of the brake cylinders 50 are in fault, so that the mining electric locomotive has good reliability and safety.
Example IV
On the basis of the first embodiment or the second embodiment, the embodiment provides a mining electric locomotive, in particular a mining overhead wire type electric locomotive, which is provided with a frame and an air brake device, wherein the air brake device is arranged on the frame. The structure and function of the air brake device are the same as those of the foregoing embodiments, and will not be described herein.
Specifically, the structure of the mining overhead wire type electric locomotive comprises a mechanical part and an electric part, wherein the mechanical part is similar to that of the mining storage battery type electric locomotive in the third embodiment, and the mechanical part is not described in detail herein. The electric part comprises a motor, a controller, a resistor box, an air automatic switch, a pantograph and the like.
The air brake device of the mining electric locomotive provided by the embodiment can still realize the function of emergency braking when part of the brake cylinders 50 are in fault, so that the mining electric locomotive has good reliability and safety.
Example five
On the basis of the first embodiment or the second embodiment, the embodiment provides a mining electric locomotive, in particular a mining super-capacitor electric locomotive, which is provided with a frame and an air brake device, wherein the air brake device is arranged on the frame. The structure and function of the air brake device are the same as those of the foregoing embodiments, and will not be described herein.
Specifically, the structure of the mining super capacitor type electric locomotive comprises a mechanical part and an electric part, wherein the mechanical part is similar to that of the mining storage battery type electric locomotive in the third embodiment, and the mechanical part is not described in detail herein. The electric part comprises a motor, a controller and a super capacitor power supply device. The super capacitor power supply device is arranged on the frame and is connected with the motor and the controller.
The air brake device of the mining electric locomotive provided by the embodiment can still realize the function of emergency braking when part of the brake cylinders 50 are in fault, so that the mining electric locomotive has good reliability and safety.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An air brake device of a mining electric locomotive is characterized by comprising a first reversing valve, a second reversing valve and more than two groups of brake cylinders, wherein:
a braking passage is formed between the first reversing valve and the braking cylinder, and a relieving passage is formed between the first reversing valve and the braking cylinder;
the second reversing valve is arranged in the braking passage and is provided with more than two air outlets, each air outlet is respectively connected with a corresponding group of braking cylinders, and the second reversing valve can control the communication and disconnection between each air outlet and the corresponding group of braking cylinders.
2. The air brake device according to claim 1, wherein the second reversing valve is a pneumatic reversing valve, an electric reversing valve, or a manual reversing valve.
3. An air brake arrangement according to claim 2, wherein the air brake arrangement has two sets of brake cylinders and the second reversing valve is a three-position five-way pneumatic reversing valve.
4. The air brake device according to claim 1, wherein the first reversing valve is a pneumatic reversing valve, an electric reversing valve, or a manual reversing valve.
5. The air brake device according to claim 1 or 4, wherein a proportional valve is further installed between the first reversing valve and the second reversing valve.
6. The air brake device according to claim 5, wherein the proportional valve is an electronically controlled proportional valve, and wherein a control switch is connected to the proportional valve.
7. The air brake device according to claim 6, wherein the first directional valve is an electronically controlled directional valve, the first directional valve being connected to the control switch.
8. The air brake device according to claim 1 or 4, further comprising a pressure reducing valve connected to the first reversing valve.
9. An electric mining locomotive having a frame and an air brake device according to any one of claims 1 to 8, the air brake device being mounted on the frame.
10. The mining electric locomotive of claim 9, wherein the mining electric locomotive is a mining battery electric locomotive, a mining overhead wire electric locomotive, or a mining super capacitor electric locomotive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711037053.0A CN107650897B (en) | 2017-10-30 | 2017-10-30 | Air brake device of mining electric locomotive and mining electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711037053.0A CN107650897B (en) | 2017-10-30 | 2017-10-30 | Air brake device of mining electric locomotive and mining electric locomotive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107650897A CN107650897A (en) | 2018-02-02 |
| CN107650897B true CN107650897B (en) | 2024-02-06 |
Family
ID=61095235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711037053.0A Active CN107650897B (en) | 2017-10-30 | 2017-10-30 | Air brake device of mining electric locomotive and mining electric locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107650897B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126800B (en) * | 2019-05-29 | 2024-07-12 | 安徽合力股份有限公司 | Reversing control valve for forklift electronic parking braking and unlocking functions |
| CN113492812B (en) * | 2020-04-02 | 2022-10-25 | 中车唐山机车车辆有限公司 | Air braking's control system and freight transportation EMUs |
| CN114261380B (en) * | 2021-12-09 | 2022-10-14 | 中车株洲电力机车有限公司 | Double-path brake output control system and method for rail transit brake |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2893204Y (en) * | 2006-04-18 | 2007-04-25 | 林春照 | Air braking integrated valve |
| CN201036989Y (en) * | 2007-06-14 | 2008-03-19 | 中国北车集团永济电机厂 | Industrial and mineral electric locomotive bidirectional dual-action air braking device |
| WO2009056305A1 (en) * | 2007-11-02 | 2009-05-07 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Valve arrangement for controlling a brake system of a parking brake system of a rail vehicle |
| CN102196951A (en) * | 2008-10-21 | 2011-09-21 | 三菱电机株式会社 | Railcar brake control device |
| CN106274857A (en) * | 2015-05-12 | 2017-01-04 | 成都液力机械有限公司 | Tractor hydraulic braking control system |
| CN106476775A (en) * | 2016-11-16 | 2017-03-08 | 中车兰州机车有限公司 | Locomotive air brakes and locomotive |
| CN207345787U (en) * | 2017-10-30 | 2018-05-11 | 中车兰州机车有限公司 | The air brake and mining electric locomotive of mining electric locomotive |
-
2017
- 2017-10-30 CN CN201711037053.0A patent/CN107650897B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2893204Y (en) * | 2006-04-18 | 2007-04-25 | 林春照 | Air braking integrated valve |
| CN201036989Y (en) * | 2007-06-14 | 2008-03-19 | 中国北车集团永济电机厂 | Industrial and mineral electric locomotive bidirectional dual-action air braking device |
| WO2009056305A1 (en) * | 2007-11-02 | 2009-05-07 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Valve arrangement for controlling a brake system of a parking brake system of a rail vehicle |
| CN102196951A (en) * | 2008-10-21 | 2011-09-21 | 三菱电机株式会社 | Railcar brake control device |
| CN106274857A (en) * | 2015-05-12 | 2017-01-04 | 成都液力机械有限公司 | Tractor hydraulic braking control system |
| CN106476775A (en) * | 2016-11-16 | 2017-03-08 | 中车兰州机车有限公司 | Locomotive air brakes and locomotive |
| CN207345787U (en) * | 2017-10-30 | 2018-05-11 | 中车兰州机车有限公司 | The air brake and mining electric locomotive of mining electric locomotive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107650897A (en) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107650897B (en) | Air brake device of mining electric locomotive and mining electric locomotive | |
| CN109878488B (en) | Hydraulic braking system of subway train | |
| CN100475619C (en) | Microcomputer control simulation type through current air-liquid conversion train braking system | |
| WO2020029791A1 (en) | Rail vehicle emergency braking safety loop circuit and rail vehicle | |
| EP2165902B1 (en) | Rail vehicle electro-pneumatic brake system and a rail vehicle equipped with such system | |
| CN103339013A (en) | Self-steering railway bogie | |
| CN109353369B (en) | Rail vehicle rescue braking system and control method | |
| CN105393018B (en) | Air spring and rail truck | |
| JPH07257360A (en) | Air / electropneumatic brake control device of railroad rolling stock | |
| CN110836205A (en) | Active radial executing system and control method for bogie | |
| KR20160012124A (en) | Thermally optimized railway vehicle brake system | |
| CN209037583U (en) | A kind of rail vehicle rescue parking brake control system | |
| DE102016200691B4 (en) | Motor vehicle with a braking device and emergency braking function | |
| CN201914241U (en) | Integrated electric pneumatic brake | |
| CN107839476B (en) | Highway-railway dual-purpose tractor | |
| CN207345787U (en) | The air brake and mining electric locomotive of mining electric locomotive | |
| CN216359959U (en) | Half-power rail vehicle moving shaft braking interlocking control device | |
| CN202320278U (en) | Release device for brake of motor-driven vehicle | |
| CN105752106A (en) | Air braking system for non-standard rail vehicle | |
| CN111775999B (en) | Train pipe quantitative pressure reduction control system and method | |
| CN201863864U (en) | Air brake system for railcars | |
| CN109335027A (en) | A kind of rail vehicle rescue parking brake control system and control method | |
| CN202911485U (en) | Guiding device and autorailer | |
| CN105365805A (en) | Pneumatic braking system capable of preventing vehicle from having malfunctions | |
| CN107415963A (en) | A kind of configuration drawn and braked and control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |