CN114620094A - Gravity induction type automatic turnout - Google Patents
Gravity induction type automatic turnout Download PDFInfo
- Publication number
- CN114620094A CN114620094A CN202210318283.9A CN202210318283A CN114620094A CN 114620094 A CN114620094 A CN 114620094A CN 202210318283 A CN202210318283 A CN 202210318283A CN 114620094 A CN114620094 A CN 114620094A
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- China
- Prior art keywords
- fixedly connected
- track
- gravity
- electric push
- automatic switch
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
- B61L5/067—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means using electromagnetic driving means
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/022—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing wheeled or rolling bodies in motion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Physics & Mathematics (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to a gravity sensing type automatic turnout, which relates to the field of coal mine equipment and comprises an adjuster, a main track, a safety part, a detection track and a pressure sensor, wherein the adjuster is erected at one side of the main track to control the vehicle on the main track to change the advancing direction, the detection track is abutted against the side where the main track vehicle enters, the safety part is erected at the lower part of the detection track to alarm the system or close the whole system, and the pressure sensor is installed at the middle part of the safety part and is abutted against the bottom end face of the detection track to enable the adjuster to work.
Description
Technical Field
The invention relates to the technical field of coal mine equipment, in particular to a gravity sensing type automatic turnout.
Background
The turnout is a transition device for guiding a train to enter another line from one line, namely, the change of the train running line can be realized by changing the opening direction of the turnout switch rail. The turnouts can be divided into standard turnouts and non-standard turnouts, and various turnouts are used in coal mines, wherein the non-standard turnouts, namely simple turnouts, are gradually eliminated, and the standard turnouts are increasingly widely used in coal mines. Because the standard turnout is provided with the track mover, the track mover can be operated manually to change the opening direction of the turnout switch rail and after the switch rail changes the opening direction, the counter weight (balance weight) of the track mover stabilizes the switch rail by utilizing the connecting rod and lever principle and is closely attached to the contacted track (stock rail), so that the condition that the switch rail is not moved and staggered when a vehicle passes through the switch rail is ensured, and the safety of a train passing through the turnout is ensured.
Although mark switch and simple and easy switch contrast relative operation need be safer, the manual work is also needed directly to go to operate the switch tongue ware and change switch tongue opening direction with the hand during operation standard switch, and the operation is not only hard inconvenient like this, and when the vehicle passed through the tongue, if the operation is untimely, often because the tongue produces removal or dislocation with the stock rail is not closely attached, causes the vehicle to fall the way when the switch to threaten transportation safety. In addition, in order to reduce the climbing times, the grappler usually adopts the following operation modes: after the mine car is put down, a hitcher does not need to immediately operate a switch, the hitching and the hooking are firstly carried out in a car yard, then the switch is switched, and finally the switch is switched back after the vehicle passes through, so that the mine car climbs a slope for a few times. However, in actual operation, the problem that a hitcher forgets to pull back the turnout sometimes occurs after a heavy vehicle travels upwards, so that a light vehicle is put on a heavy vehicle lane when the vehicle is put down. And through electric control's switch, also need the manual control of artifical vehicle information according to receiving, degree of automation is still lower.
Therefore, in view of the above disadvantages, it is desirable to provide a gravity-sensing type automatic switch.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the technical problem that the turnout still needs to be manually operated.
(II) technical scheme
In order to solve the above technical problems, the present invention provides a gravity sensing type automatic turnout, which comprises an adjuster, a main rail, a safety part, a detection rail and a pressure sensor, wherein the adjuster is erected at one side of the main rail to control the vehicle on the main rail to change the advancing direction, the detection rail is abutted against the side where the main rail vehicle enters, the safety part is erected at the lower part of the detection rail to alarm the system or close the whole system, and the pressure sensor is installed at the middle part of the safety part and is abutted against the bottom end face of the detection rail to enable the adjuster to work.
As a further description of the present invention, preferably, the adjuster includes an electric push rod, a working rod, a reed and a switch, the electric push rod is fixedly connected to one side of the main track, a telescopic end of the electric push rod is fixedly connected to one end of the working rod, the other end of the working rod is fixedly connected to the switch, and the switch is arranged in the main track to enable the vehicle to run in a reversing manner.
As a further description of the present invention, preferably, the number of the electric push rods is greater than or equal to two, only one electric push rod works during working, and the rest electric push rods are not connected with the working rod.
As a further description of the present invention, preferably, a connection rod is fixedly connected to a connection portion of the electric push rod and the working rod, and a plurality of sets of electromagnets or a plurality of sets of latches are disposed in the connection rod to fixedly connect the telescopic end of the electric push rod and the connection rod.
As a further explanation of the invention, preferably, the bottom of the switch point on both sides of the reed is fixedly connected with a bottom platform, and the thickness of the bottom platform is larger than that of the switch point; the middle part of the reed is fixedly connected with a middle platform, and the thickness of the middle platform is larger than that of the reed; the plurality of working rods are fixedly connected with the bottom platform and the middle platform respectively.
As a further description of the present invention, preferably, the electric push rod and the pressure sensor are electrically connected to the PLC in the system through cables.
As a further explanation of the present invention, preferably, the safety component includes an upper sleeve, a butting column, a lower sleeve and a detector, the upper sleeve is fixedly connected to the bottom of the detection track, and the butting column is fixedly connected to the upper part of the inner cavity of the upper sleeve; the lower sleeve is fixedly connected on the ground, the detector is fixedly connected at the bottom of an inner cavity of the lower sleeve, the upper sleeve is sleeved outside the lower sleeve, and the detector is electrically connected with a PLC in the system through a cable.
As a further explanation of the present invention, it is preferable that the lower case outer wall surface abuts against the upper case inner wall surface.
As a further explanation of the present invention, it is preferable that the upper sleeve is fixedly connected with a plurality of vertical resin tubes, and the bottom of the resin tube is abutted with the lower sleeve so that the abutting column is not abutted with the detector.
As a further illustration of the invention, it is preferred that the detection track length is greater than the wheel diameter and the detection track length is less than the spacing of the wheels in the direction of movement.
(III) advantageous effects
The technical scheme of the invention has the following advantages:
the invention uses the pressure sensor to automatically detect, uses the electric push rod to replace the original manual movement of the switch point rail, automatically detects the no-load and heavy-load state of the mine car, controls the electromagnetic valve through the control box, and enables the cylinder piston to drive the point rail to move from one position to another position, thereby achieving the purpose of changing the running route of the mine car. The full automation of the turnout action is realized, the manual operation is not needed, the turnout is quicker, the time and the labor are saved, and untimely and other accidental situations caused by manual operation of the turnout remover are avoided.
Drawings
FIG. 1 is a diagram of the overall assembly effect of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is an enlarged view of A in FIG. 2;
FIG. 4 is a view of the pressure sensor mounting location of the present invention;
fig. 5 is a cross-sectional view of the safety member of the present invention.
In the figure: 1. a regulator; 11. an electric push rod; 12. a working lever; 13. a reed; 14. a turnout; 15. a connecting rod; 16. a base table; 17. a middle platform; 2. a main track; 21. a bifurcated track; 3. a safety component; 31. sleeving; 32. a butting post; 33. sleeving; 34. a detector; 4. detecting a track; 5. a pressure sensor; 6. and (4) dividing the track.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
A gravity induction type automatic turnout combines with a figure 1 and a figure 2, and comprises a regulator 1, a main track 2, a safety component 3, a detection track 4 and a pressure sensor 5, wherein the regulator 1 is erected on one side of the main track 2 to control the vehicle on the main track 2 to change the advancing direction, the detection track 4 is abutted on one side where the vehicle on the main track 2 enters, the safety component 3 is erected on the lower portion of the detection track 4 to enable a system to alarm or the whole system to be closed, and the pressure sensor 5 is installed in the middle of the safety component 3 and abutted against the bottom end face of the detection track 4 to enable the regulator 1 to work. Wherein, the electric device, the safety component 3 and the pressure sensor 5 in the regulator 1 are electrically connected with the PLC in the system through cables.
Combine fig. 2, fig. 3, regulator 1 includes electric putter 11, working beam 12, reed 13 and switch 14, and electric putter 11 links firmly in 2 one sides of main track, and electric putter 11 quantity more than or equal to two preferably adopts two electric putter 11, and two electric putter 11 overcoat have the pollution of safety cover in order to reduce the dust in the tunnel, and electric putter 11 passes through cable electric connection with the PLC in the system. The flexible end of electric putter 11 is connected with connecting rod 15 firmly, and connecting rod 15 embeds there is multiunit electro-magnet or multiunit hasp so that electric putter 11 flexible end and connecting rod 15 fixed connection, and the during operation only has one electric putter 11 to work through electro-magnet or hasp and connecting rod 15, and all the other electric putter 11 are not connected with work beam 12 and connecting rod 15 to after electric putter 11 at work produced the trouble, can in time replace, and maintain damaged electric putter 11. The telescopic end of the electric push rod 11 is fixedly connected with one end of a working rod 12 through a connecting rod 15, the other end of the working rod 12 is fixedly connected with a reed 13 and a turnout 14, the turnout 14 is arranged in the main track 2 to enable a vehicle to run in a reversing mode, and the two ends of the reed 13 are fixedly connected between the sharp heads of the turnout 14.
Referring to fig. 2 and 3, the bottom of the tip of the switch 14 on both sides of the spring 13 is fixedly connected with a base 16, the thickness of the base 16 is larger than that of the tip of the switch 14, and the height of the base 16 is lower than that of the switch 14, so that the structural strength of the tip is increased, and the influence on the normal running of the vehicle is avoided. The middle part of the reed 13 is fixedly connected with a middle platform 17, the thickness of the middle platform 17 is larger than that of the reed 13, and the three working rods 12 are fixedly connected with two bottom platforms 16 and the middle platform 17 respectively so as to improve the controllability of the electric push rod 11 on the turnout 14 and ensure that the movement of the sharp head part of the turnout 14 can be stably controlled after the electric push rod 11 works.
With reference to fig. 4 and 5, the main track 2 is a conventional rail, the switch 14 is a conventional switch, the main track 2 is located at a side away from the detection track 4 and is bent outwards to form two branch tracks 6, the switch 14 is located at a side away from the detection track 4 and is bent inwards to form a branch track 21, and the vehicle passes through the switch 14 and is guided by the nose, so that the wheels of the vehicle are abutted against the tracks of one of the branch tracks 21 and one side of the main track 2, and then the vehicle is driven into the branch track 6 which is required to enter, and the reversing effect of the vehicle is realized.
With reference to fig. 4 and 5, the detection track 4 is an independent short track compared with the main track 2, that is, the detection track 4 is only abutted against the main track 2, the length of the detection track 4 is greater than the diameter of a wheel, the length of the detection track 4 is less than the distance between the wheels in the moving direction, by arranging the independent detection track 4, when a vehicle passes through, the detection track 4 is pressed to move downwards with a larger amplitude compared with the longer main track 2, so that the weight information of the vehicle can be accurately captured by the pressure sensor 5 positioned below the detection track 4, the judgment threshold value of the vehicle is improved, and the proper length of the detection track 4 can be selected to prevent the whole weight of the vehicle with a heavy weight from pressing towards the detection track 4 so as to avoid crushing the pressure sensor 5, because the pressure sensor 5 is not required to bear half load or full load weight of the vehicle, the pressure sensor 5 can be selected without high price, The bearing-resistant weight measuring equipment with the pressure sensor 5 saves cost, and for the weight measurement of the vehicle, the actual weight of the current vehicle can be accurately calculated according to data transmitted by the pressure sensor 5 and an algorithm recorded in a PLC system, then whether the vehicle needs to be redirected is judged by a program in the system, and if the vehicle needs to be redirected, the electric push rod 11 controls the turnout 14 to work before the vehicle runs. Through the mode, the train re-routing function can be realized for vehicles with different loads without manual regulation and the steps of mutually complicated information transmission among different work types and manual operation of electronic devices.
With reference to fig. 4 and 5, the safety member 3 includes an upper sleeve 31, an abutting column 32, a lower sleeve 33 and a detector 34, the upper sleeve 31 is fixedly connected to the bottom of the detection track 4, and the abutting column 32 is fixedly connected to the upper portion of the inner cavity of the upper sleeve 31; the lower sleeve 33 is fixedly connected to the ground, the detector 34 is fixedly connected to the bottom of the inner cavity of the lower sleeve 33, and the detector 34 is also a pressure sensor. The upper sleeve 31 is sleeved outside the lower sleeve 33, and the outer wall surface of the lower sleeve 33 is abutted against the inner wall surface of the upper sleeve 31, so that impurities such as coal ash and the like can be prevented from entering the safety part 3. The outer vertical resin pipe of a plurality of that links firmly of upper cover 31, resin pipe bottom and lower cover 33 butt so that butt post 32 not with detector 34 butt, set up the resin pipe and can avoid detecting track 4 butt post 32 direct and detector 34 contact when the pressurized, improve the threshold value of pressurized contact, play the guard action. The detector 34 is electrically connected to the PLC in the system by a cable.
With reference to fig. 4 and 5, by providing the safety member 3, the resin pipe elastically supports the upper jacket 31 during normal train travel, so that the abutment post 32 does not abut against the detector 34, thereby ensuring normal train travel. However, when the train is overloaded or the pressure sensor 5 is crushed after the service life is reduced and reaches the bearing limit, the detection track 4 continues to move downwards to bend or break the resin pipe, the abutting column 32 is in contact with the detector 34 at the moment, the detector 34 generates a signal and transmits the signal to the system, the system controls the train to enter a heavy lane to decelerate until the train stops through the signal sent by the detector 34, and then the overweight or other problems are judged and processed simultaneously to ensure that the subsequent transportation can be carried out safely and normally according to the load condition of the train and the replacement of the safety component 3 and the pressure sensor 5.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides an automatic switch of gravity-feed tank formula which characterized in that: including regulator (1), main track (2), safety part (3), detect track (4) and pressure sensor (5), regulator (1) erects in main track (2) one side in order to control the vehicle on main track (2) to change the advancing direction, detect track (4) butt in the one side that main track (2) vehicle went into, safety part (3) erect in detection track (4) lower part so that the system reports to the police or whole system is closed, pressure sensor (5) are installed in safety part (3) middle part and with detection track (4) bottom end face butt so that regulator (1) work.
2. The gravity-sensing automatic switch according to claim 1, wherein: the regulator (1) comprises an electric push rod (11), a working rod (12), a reed (13) and a turnout (14), wherein the electric push rod (11) is fixedly connected to one side of the main track (2), the telescopic end of the electric push rod (11) is fixedly connected with one end of the working rod (12), the other end of the working rod (12) is fixedly connected with the turnout (14), and the turnout (14) is arranged in the main track (2) so that a vehicle can run in a reversing mode.
3. A gravity-sensitive automatic switch as claimed in claim 2, wherein: the number of the electric push rods (11) is more than or equal to two, only one electric push rod (11) works during working, and the rest electric push rods (11) are not connected with the working rod (12).
4. A gravity-sensitive automatic switch as claimed in claim 3, wherein: the connecting part of the electric push rod (11) and the working rod (12) is fixedly connected with a connecting rod (15), and a plurality of groups of electromagnets or a plurality of groups of lock catches are arranged in the connecting rod (15) to fixedly connect the telescopic end of the electric push rod (11) with the connecting rod (15).
5. The gravity-sensing automatic switch according to claim 4, wherein: the bottom of the tip of the turnout (14) at two sides of the reed (13) is fixedly connected with a bottom platform (16), and the thickness of the bottom platform (16) is greater than that of the tip of the turnout (14); the middle part of the reed (13) is fixedly connected with a middle platform (17), and the thickness of the middle platform (17) is larger than that of the reed (13); the plurality of working rods (12) are fixedly connected with the bottom platform (16) and the middle platform (17) respectively.
6. A gravity-sensitive automatic switch as claimed in claim 2, wherein: the electric push rod (11) and the pressure sensor (5) are electrically connected with a PLC in the system through cables.
7. The gravity-sensitive automatic switch according to claim 6, wherein: the safety component (3) comprises an upper sleeve (31), a butting column (32), a lower sleeve (33) and a detector (34), the upper sleeve (31) is fixedly connected to the bottom of the detection track (4), and the butting column (32) is fixedly connected to the upper part of the inner cavity of the upper sleeve (31); the lower sleeve (33) is fixedly connected to the ground, the detector (34) is fixedly connected to the bottom of the inner cavity of the lower sleeve (33), the upper sleeve (31) is sleeved outside the lower sleeve (33), and the detector (34) is electrically connected with a PLC in a system through a cable.
8. The gravity-sensitive automatic switch according to claim 7, wherein: the outer wall surface of the lower sleeve (33) is abutted against the inner wall surface of the upper sleeve (31).
9. The gravity-sensitive automatic switch according to claim 8, wherein: the upper sleeve (31) is fixedly connected with a plurality of vertical resin tubes, and the bottoms of the resin tubes are abutted with the lower sleeve (33) so that the abutting columns (32) are not abutted with the detector (34).
10. The gravity-sensitive automatic switch according to claim 9, wherein: the length of the detection track (4) is larger than the diameter of the wheel, and the length of the detection track (4) is smaller than the distance between the wheels in the movement direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210318283.9A CN114620094B (en) | 2022-03-29 | 2022-03-29 | Gravity induction type automatic turnout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210318283.9A CN114620094B (en) | 2022-03-29 | 2022-03-29 | Gravity induction type automatic turnout |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114620094A true CN114620094A (en) | 2022-06-14 |
| CN114620094B CN114620094B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210318283.9A Active CN114620094B (en) | 2022-03-29 | 2022-03-29 | Gravity induction type automatic turnout |
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Citations (17)
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| GB190827142A (en) * | 1907-12-14 | 1909-07-29 | Mason Winfield Griffin | Improvements in Means for Operating Railway Points and Switches. |
| CH101924A (en) * | 1921-03-07 | 1923-10-16 | Power supply device for electric railways. | |
| GB446969A (en) * | 1934-11-05 | 1936-05-05 | John Hunter Clark | Improvements in and relating to the operation and control of model or toy railway locomotives and trains |
| GB1463958A (en) * | 1975-04-30 | 1977-02-09 | Tokyo Shibaura Electric Co | Apparatus for measuring the weight of railway vehicles |
| CN2075669U (en) * | 1990-01-22 | 1991-04-24 | 鞍山钢铁公司 | Switch device for railway points |
| JPH08142866A (en) * | 1994-11-18 | 1996-06-04 | Mine Seisakusho:Kk | On-board switching device |
| RU92020U1 (en) * | 2009-11-12 | 2010-03-10 | Общество с ограниченной ответственностью "Научно-Технический Центр Информационные Технологии" | ARROW TRANSFER COMPLEX |
| KR101225656B1 (en) * | 2012-07-04 | 2013-01-23 | 대구도시철도공사 | Concrete ballast turnout renewal construction method |
| CN202954269U (en) * | 2012-10-31 | 2013-05-29 | 宝山钢铁股份有限公司 | Self-lubricating switch slide plate |
| CN203005467U (en) * | 2013-01-17 | 2013-06-19 | 山西潞安环保能源开发股份有限公司 | Safe travelling protective device of monorail crane |
| US8499900B1 (en) * | 2008-04-29 | 2013-08-06 | Aaa Sales & Engineering, Inc. | Electro-hydraulic railcar retarders for controlling the speed of a railcar |
| CN109941887A (en) * | 2019-04-24 | 2019-06-28 | 福建省特种设备检验研究院 | A kind of crane early warning system and its application method based on wheel load detection |
| CN211954390U (en) * | 2020-05-26 | 2020-11-17 | 南京铁道职业技术学院 | Weighing equipment for railway transportation |
| JP2021008795A (en) * | 2019-07-03 | 2021-01-28 | 吉原鉄道工業株式会社 | Adhesion degree measuring device and adhesion degree measuring method |
| JP6829504B1 (en) * | 2020-03-26 | 2021-02-10 | 吉原鉄道工業株式会社 | Adhesion adjuster and adhesion adjuster holder |
| CN113173389A (en) * | 2021-04-07 | 2021-07-27 | 太原科技大学 | Automatic transmission device of train wheel axle that can adapt to many gauge and can turn to |
| CN113635942A (en) * | 2021-07-22 | 2021-11-12 | 宁波思高信通科技有限公司 | Switch operating mode on-line monitoring device |
-
2022
- 2022-03-29 CN CN202210318283.9A patent/CN114620094B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190827142A (en) * | 1907-12-14 | 1909-07-29 | Mason Winfield Griffin | Improvements in Means for Operating Railway Points and Switches. |
| CH101924A (en) * | 1921-03-07 | 1923-10-16 | Power supply device for electric railways. | |
| GB446969A (en) * | 1934-11-05 | 1936-05-05 | John Hunter Clark | Improvements in and relating to the operation and control of model or toy railway locomotives and trains |
| GB1463958A (en) * | 1975-04-30 | 1977-02-09 | Tokyo Shibaura Electric Co | Apparatus for measuring the weight of railway vehicles |
| CN2075669U (en) * | 1990-01-22 | 1991-04-24 | 鞍山钢铁公司 | Switch device for railway points |
| JPH08142866A (en) * | 1994-11-18 | 1996-06-04 | Mine Seisakusho:Kk | On-board switching device |
| US8499900B1 (en) * | 2008-04-29 | 2013-08-06 | Aaa Sales & Engineering, Inc. | Electro-hydraulic railcar retarders for controlling the speed of a railcar |
| RU92020U1 (en) * | 2009-11-12 | 2010-03-10 | Общество с ограниченной ответственностью "Научно-Технический Центр Информационные Технологии" | ARROW TRANSFER COMPLEX |
| KR101225656B1 (en) * | 2012-07-04 | 2013-01-23 | 대구도시철도공사 | Concrete ballast turnout renewal construction method |
| CN202954269U (en) * | 2012-10-31 | 2013-05-29 | 宝山钢铁股份有限公司 | Self-lubricating switch slide plate |
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| CN109941887A (en) * | 2019-04-24 | 2019-06-28 | 福建省特种设备检验研究院 | A kind of crane early warning system and its application method based on wheel load detection |
| JP2021008795A (en) * | 2019-07-03 | 2021-01-28 | 吉原鉄道工業株式会社 | Adhesion degree measuring device and adhesion degree measuring method |
| JP6829504B1 (en) * | 2020-03-26 | 2021-02-10 | 吉原鉄道工業株式会社 | Adhesion adjuster and adhesion adjuster holder |
| CN211954390U (en) * | 2020-05-26 | 2020-11-17 | 南京铁道职业技术学院 | Weighing equipment for railway transportation |
| CN113173389A (en) * | 2021-04-07 | 2021-07-27 | 太原科技大学 | Automatic transmission device of train wheel axle that can adapt to many gauge and can turn to |
| CN113635942A (en) * | 2021-07-22 | 2021-11-12 | 宁波思高信通科技有限公司 | Switch operating mode on-line monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114620094B (en) | 2023-10-20 |
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