CN117341737A - A device and method for increasing the effective volume of a locomotive sand box - Google Patents
A device and method for increasing the effective volume of a locomotive sand box Download PDFInfo
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- CN117341737A CN117341737A CN202311475079.9A CN202311475079A CN117341737A CN 117341737 A CN117341737 A CN 117341737A CN 202311475079 A CN202311475079 A CN 202311475079A CN 117341737 A CN117341737 A CN 117341737A
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- sand
- sand box
- locomotive
- air bag
- effective volume
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
- B61C15/08—Preventing wheel slippage
- B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
- B61C15/102—Preventing wheel slippage by depositing sand or like friction increasing materials with sanding equipment of mechanical or fluid type, e.g. by means of steam
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
本发明涉及机车撒砂装置及方法技术领域，具体涉及一种提高机车砂箱有效容积的装置及方法。一种提高机车砂箱有效容积的装置包括气囊，气囊设置于砂箱的内部，且设置于撒砂装置的周向，气囊具有未充气状态和充气状态，气囊处于未充气状态时，气囊与砂箱内壁相贴，气囊处于充气状态时，气囊的上部形成从靠近砂箱向靠近撒砂装置逐渐向下倾斜的坡面，以推动砂箱边缘的砂子向中间靠拢，保证砂子可以顺利通过撒砂装置喷洒到轮轨之间，可以提高砂箱的有效容积，满足机车的撒砂要求，对行车安全进行保障。
The invention relates to the technical field of locomotive sand spreading devices and methods, and in particular to a device and method for increasing the effective volume of a locomotive sand box. A device for increasing the effective volume of a locomotive sand box includes an air bag. The air bag is arranged inside the sand box and in the circumferential direction of the sand spreading device. The air bag has an uninflated state and an inflated state. When the air bag is in an uninflated state, the air bag and the sand The inner walls of the box are close to each other. When the air bag is inflated, the upper part of the air bag forms a slope that gradually slopes downward from close to the sand box to close to the sand spreading device to push the sand on the edge of the sand box closer to the middle to ensure that the sand can pass through the sand spreading device smoothly. The device sprays between the wheel rails, which can increase the effective volume of the sand box, meet the sand spreading requirements of the locomotive, and ensure driving safety.
Description
Technical Field
The invention relates to the technical field of locomotive sanding devices and methods, in particular to a device and a method for improving the effective volume of a locomotive sand box.
Background
When the locomotive is started or braked, the surface state between the wheels and the tracks has great influence on the adhesion coefficient, particularly in rainy and snowy weather, the adhesion coefficient can be greatly reduced, and in order to improve the adhesion coefficient, the locomotive is usually subjected to sanding during starting or braking, and the purpose of the sanding is to improve the state between contact surfaces of the wheels and the tracks, so that the adhesion force of the locomotive is increased to improve the traction force or the braking force of the locomotive and prevent the wheels of the locomotive from idling. The general locomotive can be configured with a sand box with a certain capacity according to the line condition, the endurance mileage, the road crossing condition and the like, so that enough sand is provided for the sand spraying device. The amount of available sand in the flask is related to the starting and braking capabilities of the locomotive.
The working principle of the existing sanding system is shown in figure 1. The sanding system consists of a sand box 2, a sand adding port 1, a sanding device 3, an air pipeline, a sand pipe 4, a sanding nozzle 5 and the like. Sand enters the sand box through the sand adding port for storage standby, and when sand needs to be sprayed, compressed air is input into the sand spraying device through the air pipeline, and the sand spraying device is driven to spray a certain amount of sand between the wheels and the rail through the sand pipe and the sand spraying nozzle. Sand in the sand box continuously rushes to the sand spraying device by means of gravity of the sand and shaking in the running process of a locomotive, and the space left by the sprayed sand is filled.
To enhance the dynamic performance of a locomotive, locomotive flasks are typically preferentially positioned on the locomotive body. Taking an electric locomotive as an example, 4 sand boxes with 50 liters of volume are required to be arranged on a car body. The sand box is either hung under the chassis of the vehicle body independently or is integrated with the bearing structure of the chassis part of the vehicle body as shown in figure 2. The locomotive sand box is generally formed by welding steel plates into a closed box body, a sand feeding port is arranged above the locomotive sand box, and a sand scattering device is arranged at the bottom of the sand box. As can be seen from the figure, the flask volume is dependent on the amount of space reserved for the flask by the undercarriage.
The volume of the sand box of the existing locomotive is limited by the space of the underframe. As the weight of the vehicle body tends to be reduced, the height of the underframe and the thickness of the underframe need to be reduced as much as possible, and the upper space of the flask is compressed. The sand spraying device and the sand spraying nozzle have certain height difference to ensure that sand can smoothly flow in the sand pipe, so the height requirement of the sand spraying device is improved as much as possible. For the above reasons, the space available for the flask generally tends to be flat. Although the flat sand box can meet the volume requirement of the sand box, the available volume of the sand box is reduced, sand in the sand box far away from the sand spraying device cannot flow into the sand spraying device by virtue of gravity due to poor flowability, damp and the like, so that the actual sand spraying amount is far smaller than the nominal volume of the sand box, and the starting and braking performances of a locomotive are seriously affected. In order to increase the fluidity of sand, a baffle is usually arranged at the bottom of the sand box, as shown in fig. 3. However, if the inclination angle of the guide plate is too small, the guide plate cannot play a role in guiding, and if the inclination angle is too large, the volume of the sand box is reduced too much, and the effective volume of the sand box cannot be ensured. Based on this, the prior art still remains to be improved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device and a method for improving the effective volume of a locomotive sand box, so as to solve the problem of smaller effective volume of the existing locomotive sand box.
The utility model provides an improve locomotive sand box effective volume's device, including the sand box, the sand box is connected with the air line outward, the top of sand box is provided with the sand box lid, the base body is installed to the bottom of sand box, be provided with the sanding device on the base body, an improve locomotive sand box effective volume's device still includes the gasbag, the gasbag sets up in the inside of sand box, and set up in the circumference of sanding device, the gasbag has unaerated state and inflated state, when the gasbag is in unaerated state, the gasbag pastes with the sand box inner wall mutually, when the gasbag is in inflated state, the upper portion formation of gasbag is from being close to the sand box to being close to the domatic of sanding device declivity gradually.
Further, the bottom edge of sand box is provided with first flange, and the base body includes second flange and fixed section of thick bamboo, and first flange and second flange correspond from top to bottom and set up, and through bolted connection, and the sand box passes through the flange to be installed in the automobile body, and fixed section of thick bamboo is in the inside of sand box, and installs on the second flange, and fixed section of thick bamboo sets up to be used for fixing the gasbag.
Further, the air bag is made of hollow rubber body, is adhered or vulcanized with the base body, and is connected with an air inlet valve and a pressure relief valve which are respectively used for controlling air inlet and air exhaust.
Further, a pressure switch for detecting the internal pressure of the air bag is also arranged on the air bag.
Further, a device for increasing the effective volume of a locomotive flask further includes a sensor configured to detect the amount of sand stored in the flask.
Further, the sensor is at the same height as the bladder, and when sand descends to the sensor, the bladder begins to inflate.
Further, the fixing cylinder is tightly attached to the inner wall surface of the sand box, and the height of the air bag is the same as that of the fixing cylinder.
Further, the sanding device is arranged at the central round hole of the flange, and the inner side of the air bag extends to the central round hole of the flange.
Further, the device for improving the effective volume of the locomotive sand box further comprises a control system, wherein the control system is used for receiving signals of the sensor and controlling the opening and closing of the air inlet valve and the pressure relief valve.
The method for improving the effective volume of the locomotive sand box based on the device for improving the effective volume of the locomotive sand box comprises the following steps of:
the driver presses down the sanding pedal for 3-5 seconds to blow air to the sanding device, and the sanding device performs sanding; when the height of the sand is higher than that of the air bag, the air bag is in an uninflated state; when the height of sand in the sand box is lower than the height of the air bag, the air bag starts to be inflated to form a slope which gradually inclines downwards from being close to the sand box to being close to the sand spraying device, and the sand is guided to flow into the sand spraying device.
The beneficial effects of the invention are as follows: according to the scheme, the air bag is arranged in the sand box, the air bag has an uninflated state and an inflated state, when the air bag is in the uninflated state, the air bag is attached to the wall of the sand box, the volume of the sand box is hardly occupied, and the effective volume of the sand box of the locomotive is increased; when the air bag is in an inflated state, the upper part of the air bag forms a slope which gradually inclines downwards from being close to the sand box to being close to the sand spraying device, if sand needs to be sprayed, the air bag swells to push sand at the edge of the sand box to approach the middle, the sand can be ensured to be sprayed between wheel rails through the sand spraying device smoothly, the sand spraying requirement of a locomotive can be met, and the driving safety is ensured. The sand adding device can avoid frequent sand adding of locomotives, save working hours and sand, can be popularized and used in all railway locomotive sand boxes, and has great economic benefit.
Drawings
FIG. 1 is a schematic structural view showing a prior art sanding system;
FIG. 2 is a schematic view showing the structure of a sand box in a sand-spreading device according to the prior art;
FIG. 3 is a schematic view showing the structure of a baffle inside a sand box in a sand blowing device according to the prior art;
FIG. 4 illustrates a schematic diagram of the operation of an air bag in an apparatus for increasing the effective volume of a locomotive flask in accordance with one embodiment of the present invention;
FIG. 5 is a schematic view of a device for increasing the effective volume of a locomotive flask according to one embodiment of the present invention;
FIG. 6 is a schematic view of a base structure of an apparatus for increasing the effective volume of a locomotive flask according to one embodiment of the present invention;
FIG. 7 illustrates a flowchart of a method for increasing the effective volume of a locomotive flask in accordance with an embodiment of the present invention.
Reference numerals illustrate: 1. a sand box cover; 2. a sand box; 3. a second flange; 4. a fixed cylinder; 5. a sensor; 6. a sanding device; 7. an air bag; 8. an intake valve; 9. a pressure release valve; 10. a first flange.
Detailed Description
It should be understood that the embodiments of the invention shown in the exemplary embodiments are only illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art will readily appreciate that many modifications are possible without materially departing from the teachings of the subject matter of this disclosure. Accordingly, all such modifications are intended to be included within the scope of present invention. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and parameters of the exemplary embodiments without departing from the spirit of the present inventions.
The embodiment of the invention provides a device for improving the effective volume of a locomotive sand box, which comprises a sand box 2, wherein the sand box 2 is arranged on a vehicle body and is used for containing sand. The outside of the sand box 2 is connected with an air pipeline, the top of the sand box 2 is provided with a sand box cover 1, and the sand box cover 1 can be opened and closed to throw sand into the sand box 2. The base body is installed to the bottom of sand box 2, is provided with sanding device 6 on the base body, and sanding device 6 external has sand pipe and sanding nozzle, improves locomotive sand box 2 effective volume's device, and when needs sanding, air line is sanding device 6 input compressed air, drives sanding device 6 to spray a certain amount of sand between wheel and rail through sand pipe and sanding nozzle. The sand in the sand box 2 continuously surges to the sand spraying device 6 by means of the gravity of the sand and the shaking of the locomotive in operation, and the space left by the sprayed sand is filled.
Particularly, the device for improving the effective volume of the locomotive sand box provided by the embodiment of the invention further comprises the air bag 7, wherein the air bag 7 is arranged in the sand box 2 and is arranged in the circumferential direction of the sand scattering device 6, the air bag 7 has an uninflated state and an inflated state, when the air bag 7 is in the uninflated state, the air bag 7 is attached to the inner wall of the sand box 2, the volume of the sand box 2 is hardly occupied, and the effective volume of the locomotive sand box 2 is improved; when the air bag 7 is in an inflated state, the upper part of the air bag 7 forms a slope which gradually inclines downwards from being close to the sand box 2 to being close to the sand spraying device 6, and if sand needs to be sprayed, the air bag 7 bulges to push the sand at the edge of the sand box 2 to be close to the middle, so that the sand can be sprayed between wheel rails through the sand spraying device 6 smoothly. The operation principle of the air bag 7 is as shown in fig. 4, the left air bag 7 is in an uninflated state, and the right air bag 7 is in an inflated state. Thus, as long as sand is still in the sand box 2, the sand can be pushed to the vicinity of the sanding device 6 by the air bag 7 and can not remain in the corner of the sand box 2, so that the available volume of the sand box 2 can be effectively increased. According to analysis, the effective volume of the sand box 2 can be increased by 10% -30%. Due to the different structures and sizes of the sand boxes 2, the different drying degree of sand, the different running speed lines of the vehicle and the like, the improvement degree of the effective volume is slightly different. The effective volume of the sand box 2 is improved, so that the sand spraying requirement of a locomotive can be met, and the driving safety is ensured.
In some embodiments, as shown in fig. 5, a first flange 10 is provided at the bottom edge of the sand box 2, the base body includes a second flange 3 and a fixing cylinder 4, the first flange 10 and the second flange 3 are provided correspondingly up and down, and are connected by bolts and nuts, so that the base body is mounted on the sand box 2, the fixing cylinder 4 is located inside the sand box 2 and mounted on the flange 3, and the fixing cylinder 4 is provided for fixing the air bag 7. During installation, the fixed cylinder 4 is inserted from the lower part of the sand box 2, through holes in the first flange 10 and the second flange 3 are aligned vertically, and then the first flange 10 and the second flange 3 are connected through bolts and nuts, so that the base body and the sand box 2 are firmly connected into a whole, and the tightness of the sand box 2 is also ensured.
In some embodiments, the air bag 7 is made of hollow rubber, and is adhered or vulcanized with the base, and an air inlet valve 8 and a pressure release valve 9 (as shown in fig. 5) are connected to the air bag 7, and the air inlet valve 8 and the pressure release valve 9 are respectively used for controlling air inlet and air exhaust so as to adjust the state of the air bag 7.
In some embodiments, the air bag 7 is further provided with a pressure switch for detecting the internal pressure of the air bag 7, the pressure switch is internally provided with a pressure detector, when the air bag 7 is inflated, the pressure in the air bag 7 reaches the set pressure of the pressure switch, the pressure switch starts to act, the air inlet valve 8 stops inflating, and the air pressure in the air bag 7 is ensured not to exceed the maximum pressure born by the air bag 7.
In some embodiments, the means for increasing the effective volume of the locomotive flask further includes a sensor 5, the sensor 5 being configured to detect the amount of sand present in the flask 2 to better control the timing of the operation of the bladder 7.
In some embodiments, the sensor 5 is at the same level as the bladder 7, and when sand descends to the level of the sensor 5, the air inlet valve 8 opens and the bladder 7 begins to inflate.
In some embodiments, as shown in fig. 6, the fixing cylinder 4 is tightly attached to the inner wall surface of the sand box 2, so that sand is prevented from entering a gap between the fixing cylinder 4 and the sand box 2, and the height of the air bag 7 is the same as that of the fixing cylinder 4, so that the probability that the sand is blocked into the joint of the air bag 7 and the fixing cylinder 4 is reduced.
In some embodiments, the sanding device 6 is disposed at the central circular hole of the flange 3, and the inner side of the air bag 7 extends to the central circular hole of the flange 3, so as to ensure that sand flows into the sanding device 6 from the middle when the air bag 7 is in an inflated state.
In some embodiments, the means for increasing the effective volume of the locomotive flask 2 further includes a control system for receiving signals from the sensor 5 and controlling the opening and closing of the intake valve 8 and the relief valve 9.
The method for improving the effective volume of the locomotive sand box based on the device for improving the effective volume of the locomotive sand box comprises the following steps of:
the driver presses down the sanding pedal for 3-5 seconds, and blows air to the sanding device 6 through the air pipeline, so that the sanding device 6 performs sanding; the sensor 5 senses the height of sand in the sand box 2, when the height of the sand is higher than the height of the sensor 5, the air inlet valve 8 on the air bag 7 does not act, and the air bag 7 is in an uninflated state; when the height of the sand in the flask 2 is lower than or equal to the height of the sensor 5, the air bag 7 starts to be inflated, forming a slope gradually sloping downward from near the flask 2 to near the sanding device 6, and guiding the sand to flow into the sanding device 6.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention; modifications and equivalent substitutions are intended to be included in the scope of the claims without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides an improve locomotive sand box effective volume's device, includes the sand box, and the sand box is connected with the air line outward, and the top of sand box is provided with the sand box lid, and the base body is installed to the bottom of sand box, is provided with the sanding device on the base body, its characterized in that still includes the gasbag, the gasbag set up in the inside of sand box, and set up in sanding device's circumference, the gasbag has unaerated state and inflated state, and the gasbag is in unaerated state, and the gasbag pastes with the sand box inner wall mutually, and the gasbag is in inflated state, and the upper portion of gasbag forms from being close to the sand box is to being close to the domatic of sanding device downward sloping gradually.
2. The apparatus for increasing the effective volume of a locomotive sand box according to claim 1, wherein a first flange is arranged at the bottom edge of the sand box, the base body comprises a second flange and a fixing cylinder, the first flange and the second flange are arranged up and down correspondingly and are connected through bolts and nuts, the fixing cylinder is arranged in the sand box and is mounted on the second flange, and the fixing cylinder is used for fixing the air bag.
3. The apparatus for increasing the effective volume of a flask for a locomotive according to claim 1, wherein the air bag is made of hollow rubber, is bonded or vulcanized with the base body, and is connected with an air inlet valve and a pressure release valve for controlling air inlet and air exhaust, respectively.
4. The apparatus for increasing the effective volume of a flask for a locomotive as in claim 1 wherein the bladder is further provided with a pressure switch for detecting the pressure within the bladder.
5. A device for increasing the effective volume of a locomotive flask as in claim 3 further comprising a sensor configured to detect the amount of sand present in the flask.
6. The apparatus for increasing the effective volume of a locomotive flask according to claim 5 wherein the sensor is at the same height as the bladder and the bladder begins to inflate when sand descends to the level of the sensor.
7. The apparatus for increasing the effective volume of a locomotive flask according to claim 2, wherein said fixed cylinder is in close contact with an inner wall surface of said flask, and said bladder is at the same height as said fixed cylinder.
8. The apparatus for increasing the effective volume of a locomotive flask according to claim 2, wherein said sanding means is disposed at a central circular hole of a flange, and wherein the inner side of said bladder extends to the central circular hole of said flange.
9. The apparatus for increasing the effective volume of a locomotive flask according to claim 5, further comprising a control system for receiving signals from sensors and controlling the opening and closing of said intake and relief valves.
10. A method of increasing the effective volume of a locomotive flask, based on the device for increasing the effective volume of a locomotive flask according to any one of claims 1 to 9, comprising the steps of:
the driver presses down the sanding pedal for 3-5 seconds to blow air to the sanding device, and the sanding device performs sanding; when the height of the sand is higher than that of the air bag, the air bag is in an uninflated state; when the height of sand in the sand box is lower than the height of the air bag, the air bag starts to be inflated to form a slope which gradually inclines downwards from being close to the sand box to being close to the sand spraying device, and the sand is guided to flow into the sand spraying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311475079.9A CN117341737B (en) | 2023-11-07 | 2023-11-07 | Device and method for improving effective volume of locomotive sand box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311475079.9A CN117341737B (en) | 2023-11-07 | 2023-11-07 | Device and method for improving effective volume of locomotive sand box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117341737A true CN117341737A (en) | 2024-01-05 |
| CN117341737B CN117341737B (en) | 2025-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311475079.9A Active CN117341737B (en) | 2023-11-07 | 2023-11-07 | Device and method for improving effective volume of locomotive sand box |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201127982Y (en) * | 2007-11-30 | 2008-10-08 | 刘连忠 | Sand casting and molding machine indenter |
| CN201432553Y (en) * | 2009-06-01 | 2010-03-31 | 中国北车集团大连机车车辆有限公司 | Novel sanding device for locomotive |
| CN205668557U (en) * | 2016-06-07 | 2016-11-02 | 株洲联诚集团有限责任公司 | A kind of sealing structure for track traffic sanding device |
| CN207293102U (en) * | 2017-08-15 | 2018-05-01 | 浙江超宇汽车科技有限公司 | A kind of efficient energy-saving full-automatic bulk powder goods tanker device for discharging |
| CN115848438A (en) * | 2022-12-07 | 2023-03-28 | 中车大连机车车辆有限公司 | Intelligent sand adding system and method for locomotive |
-
2023
- 2023-11-07 CN CN202311475079.9A patent/CN117341737B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201127982Y (en) * | 2007-11-30 | 2008-10-08 | 刘连忠 | Sand casting and molding machine indenter |
| CN201432553Y (en) * | 2009-06-01 | 2010-03-31 | 中国北车集团大连机车车辆有限公司 | Novel sanding device for locomotive |
| CN205668557U (en) * | 2016-06-07 | 2016-11-02 | 株洲联诚集团有限责任公司 | A kind of sealing structure for track traffic sanding device |
| CN207293102U (en) * | 2017-08-15 | 2018-05-01 | 浙江超宇汽车科技有限公司 | A kind of efficient energy-saving full-automatic bulk powder goods tanker device for discharging |
| CN115848438A (en) * | 2022-12-07 | 2023-03-28 | 中车大连机车车辆有限公司 | Intelligent sand adding system and method for locomotive |
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| Publication number | Publication date |
|---|---|
| CN117341737B (en) | 2025-11-28 |
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