CN220543488U - Railway point machine control circuit for sand table - Google Patents
Railway point machine control circuit for sand table Download PDFInfo
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- CN220543488U CN220543488U CN202321596655.0U CN202321596655U CN220543488U CN 220543488 U CN220543488 U CN 220543488U CN 202321596655 U CN202321596655 U CN 202321596655U CN 220543488 U CN220543488 U CN 220543488U
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- control circuit
- sand table
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- 239000004576 sand Substances 0.000 title claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000002441 reversible effect Effects 0.000 claims abstract description 8
- 238000004088 simulation Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a railway point machine control circuit for a sand table, wherein the railway point machine control circuit is arranged on the sand table for teaching and comprises a power supply, a relay, a positioning indicating circuit, a reverse position indicating circuit, a point machine action rod and a permanent magnet iron core; the switch machine action rod is arranged at one end of the permanent magnet iron core; the action coil surrounds the periphery of the permanent magnet iron core; the two ends of the switch machine positioning action coil are connected with a positioning indicating circuit in parallel, one end of the positioning indicating circuit is connected with a front contact of a contact group of the relay, and the other end of the positioning indicating circuit is connected with the negative electrode of the power supply; the two ends of the reversing action coil of the switch machine are connected with reversing indicating circuits in parallel, one end of each reversing indicating circuit is connected with the rear contact of the contact group of the relay, and the other end of each reversing indicating circuit is connected with the negative electrode of the power supply; the utility model applies the control circuit of the switch machine to the sand table, restores railway signal operation, and can perform simulation exercise, thereby enhancing the practical ability and understanding ability of students in teaching.
Description
Technical Field
The utility model relates to the technical field of rail transit signals, in particular to a railway switch machine control circuit for a sand table.
Background
Switch is a very important basic device for railway signals and is a key point in teaching. The existing general teaching method adopts outdoor turnout observation, cannot be truly performed indoors, and whether the turnout is converted into place cannot be intuitively displayed to students. According to the cognition and learning characteristics of students, the teaching experiment display board is designed and manufactured for students to exercise in the learning process, and has important significance for turnout teaching. However, there is a lack of instrumentation for railway switch teaching in the market today, and research and development by those skilled in the art is required.
Disclosure of Invention
In view of the above, the utility model provides a railway switch machine control circuit for a sand table, which is arranged on the sand table, provides simulation teaching instrument equipment for rail traffic profession, can simulate switch conversion and give visual representation, and improves teaching efficiency and quality.
The utility model provides a technical scheme that the railway switch machine control circuit comprises a power supply, a relay, a positioning indicating circuit, a reverse indicating circuit, a switch machine action rod and a permanent magnet iron core, wherein the railway switch machine control circuit is arranged on the teaching sand table; the switch machine action rod is arranged at one end of the permanent magnet iron core; the action coil surrounds the periphery of the permanent magnet iron core;
the action coil comprises a point machine positioning action coil and a point machine reverse action coil;
the two ends of the switch machine positioning action coil are connected in parallel with a positioning indication circuit, one end of the positioning indication circuit is connected with a contact before the contact group of the relay, and the other end of the positioning indication circuit is connected with the negative electrode of the power supply;
the two ends of the reversing action coil of the switch machine are connected in parallel with a reversing indication circuit, one end of the reversing indication circuit is connected with the rear contact of the contact group of the relay, and the other end of the reversing indication circuit is connected with the negative electrode of the power supply;
the contact group movable contact of the relay is connected with the positive electrode of the power supply.
Specifically, the other end of the positioning indicating circuit is connected with the other end of the inversion indicating circuit to form a common connecting end, and the common connecting end is connected with the negative electrode of the power supply.
The positioning indication circuit comprises a positioning indication lamp, a first resistor and a first diode;
the first diode is connected with the positioning indicator lamp in parallel and connected with the first resistor in series;
the input end of the first diode is connected with the positive electrode of the positioning indicator lamp and then connected with the front contact of the contact group of the relay through the first resistor;
specifically, the output end of the first diode is connected with the negative electrode of the positioning indicator lamp and then connected to the negative electrode of the power supply.
Specifically, the flip-bit indicating circuit comprises a flip-bit indicating lamp, a second resistor and a second diode;
the second resistor and the flip indicator lamp are connected in parallel and connected in series with the second resistor;
the input end of the second diode is connected with the negative electrode of the inversion indicator lamp and then connected with the negative electrode of the power supply;
and the output end of the second diode is connected with the positive electrode of the inversion indicating lamp and then is connected with the rear contact of the contact group of the relay through a second resistor.
Preferably, the action coil is fixed to the inner side of the coil fixing housing by a coil fixing screw.
Preferably, a first limiting block is arranged at the upper end of the permanent magnet core, and a second limiting block is arranged at the lower end of the permanent magnet core.
Specifically, the power supply is a direct current power supply; the power supply is a No. 5 battery.
According to the technical scheme, the railway switch machine control circuit is placed on the sand table, the control circuit is powered on, the positions of the front contact point of the relay contact point set and the rear contact point of the contact point set are adjusted by rotating the positions of the buttons, the coil wound on the switch machine action rod is electrified, the switch machine action rod is driven to move up and down under the action force of the coil magnetic field and the magnetic field of the switch machine action rod, the steel rail switch rail can be driven to switch in position by fixedly connecting one end of the switch machine action rod with the steel rail switch rail, meanwhile, the corresponding indication lamp is lightened, the position where the current steel rail switch rail is switched is shown, and the application can be used for operating and training on site by applying the railway switch machine control circuit on the sand table to highly restore real railway signal operation, so that the practical capability and understanding capability in teaching are enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic circuit diagram of a railroad switch machine control circuit for use with the sand table of the present utility model;
FIG. 2 is a schematic diagram of the upward movement of the permanent magnet core of the railway switch machine control circuit used in the sand table of the present utility model;
fig. 3 is a top view of a permanent magnet core of a railroad switch machine control circuit for use with the sand table of the present utility model.
1. A relay; 21. the contact group moves the contacts; 22. a front contact of the contact set; 23. the rear contact of the contact group; 3. a power supply; 4. positioning the indicator light; 5. the inversion indicates a lamp; 6. a switch machine action bar; 7. a switch machine positioning action coil; 8. a switch machine reverse-position action coil; 10. a first resistor; 11. a first diode; 12. a second resistor; 13. a second diode; 14. a first limiting block; 15. a coil fixing housing; 17. a permanent magnet core; 18. a coil fixing screw; 19. and a second limiting block.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.
Referring to fig. 1, a control circuit of a railway switch machine for a sand table is disclosed.
As shown in fig. 1, the railway point machine control circuit for the sand table comprises a teaching sand table and a railway point machine control circuit arranged on the teaching sand table, wherein the railway point machine control circuit comprises a power supply 3, a relay 1, a positioning indicating circuit, a reverse indicating circuit, a point machine action rod 6 and a permanent magnet iron core 17; the switch machine action 6 rod is arranged at one end of the permanent magnet iron core 17; the action coil surrounds the periphery of the permanent magnet iron core 17;
in order to achieve the technical scheme, a gap is reserved between the action coil and the permanent magnet iron core in the application.
The action coils comprise a point machine positioning action coil 7 and a point machine reverse action coil 8;
a positioning indication circuit is connected in parallel with two ends of the switch machine positioning action coil 7, one end of the positioning indication circuit is connected with a contact 22 in front of a contact group of the relay 1, and the other end of the positioning indication circuit is connected with the negative electrode of the power supply 3;
the two ends of the reversing action coil 7 of the switch machine are connected in parallel with a reversing indication circuit, one end of the reversing indication circuit is connected with a contact 23 behind the contact group of the relay 1, and the other end of the reversing indication circuit is connected with the negative electrode of the power supply 3.
As shown in fig. 1, the other end of the positioning indicating circuit is connected with the other end of the inversion indicating circuit to form a common connection end, and the common connection end is connected with the negative electrode of the power supply.
Further, the positioning indication circuit comprises a positioning indication lamp 4, a first resistor 10 and a first diode 11;
the first diode 11 is connected in parallel with the positioning indicator lamp 4 and in series with the first resistor 10;
the input end of the first diode 11 is connected with the positive electrode of the positioning indicator lamp 4 and then connected with a contact 22 in front of the contact group of the relay 1 through the first resistor 10;
the output end of the first diode 11 is connected with the negative electrode of the positioning indicator lamp 4 and then connected with the negative electrode of the power supply 3;
the contact group movable contact of the relay is connected with the positive electrode of the power supply.
The flip-bit indicating circuit comprises a flip-bit indicating lamp 5, a second resistor 12 and a second diode 13;
the second resistor 12 and the flip indicator lamp 5 are connected in parallel and in series with the second resistor 12;
the input end of the second diode 13 is connected with the negative electrode of the inverted indicator lamp 5 and then connected with the negative electrode of the power supply 3;
further, the output terminal of the second diode 13 is connected to the positive electrode of the reverse indicating lamp 5, and then connected to the contact 23 of the relay 1 via the second resistor 12.
Further, the operating coil is covered with a coil fixing case 15, and the operating coil is fixed to the inside of the coil fixing case 15 by a coil fixing screw 18.
Further, a first limiting block 14 is arranged at the upper end of the permanent magnet core, and a second limiting block 19 is arranged at the lower end of the permanent magnet core 17; the first stopper 14 and the second stopper 19 cooperate to define the distance that the permanent magnet core 17 moves up and down.
Further, the power supply 3 is a direct current power supply; the power supply 3 is a No. 5 battery.
Examples
The utility model puts the control circuit of the railway point switch on the sand table, the power supply of the control circuit is provided with a No. 5 battery for use, one end of the action rod of the point switch is fixedly connected with a rail point rail, when the point rail is required to be far away from the rail to reach the positioning position, the front contact of the contact group of the relay of the rotary knob control positioning position is connected, thereby the positioning action coil of the point switch is electrified and generates a magnetic field, meanwhile, the electromagnetic iron core generates a magnetic field opposite to the positioning action coil and interacts with the positioning action coil, a gap is reserved between the permanent magnetic iron core and the action coil, and the action coil is not in tight contact, thereby pushing the action rod of the point switch to move upwards, when the action rod of the point switch reaches the positioning position, namely, the upward movement reaches the first limiting block, the positioning indication lamp is lighted, and the positioning position is prompted.
When the switch rail is required to be closely attached to the steel rail to reach the inversion position, the rear contact of the contact group of the relay for controlling the inversion position by the rotary knob is connected with electricity, so that the inversion action coil of the switch machine is electrified and generates a magnetic field, meanwhile, the electromagnetic iron core generates a magnetic field opposite to the inversion action coil in the inversion action coil and interacts with the inversion action coil, so that the action rod of the switch machine is pushed to move downwards, when the action rod of the switch machine reaches the inversion position, namely, the action rod reaches the second limiting block, the inversion indicating lamp is lightened to prompt that the inversion position is reached, and meanwhile, the whole electromagnetic iron core, the first limiting block and the second limiting block are isolated from the outside by the plastic shell for ensuring safety.
When the switch rail is closely attached to the steel rail, the switch rail is forcibly moved by external force, and when the switch rail is deflected, the lamp is turned off by the reversed position indication lamp, and meanwhile, a buzzer at the turnout position alarms to give an alarm; the bifurcated indicator light will be on at the same time.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The railway switch machine control circuit for the sand table is characterized by comprising a teaching sand table and a railway switch machine control circuit arranged on the teaching sand table, wherein the railway switch machine control circuit comprises a power supply, a relay, a positioning indicating circuit, a reverse indicating circuit and a switch machine; the switch machine comprises a switch machine action rod and a permanent magnet iron core; the switch machine action rod is arranged at one end of the permanent magnet iron core; an action coil surrounds the periphery of the permanent magnet iron core;
the action coil comprises a point machine positioning action coil and a point machine reverse action coil;
the two ends of the switch machine positioning action coil are connected in parallel with a positioning indication circuit, one end of the positioning indication circuit is connected with a contact before the contact group of the relay, and the other end of the positioning indication circuit is connected with the negative electrode of the power supply;
the two ends of the reversing action coil of the switch machine are connected in parallel with a reversing indication circuit, one end of the reversing indication circuit is connected with the rear contact of the contact group of the relay, and the other end of the reversing indication circuit is connected with the negative electrode of the power supply;
the contact group movable contact of the relay is connected with the positive electrode of the power supply.
2. The control circuit of a railroad switch machine for use with a sand table of claim 1, wherein the other end of the positioning indicating circuit is connected to the other end of the inversion indicating circuit to form a common connection, the common connection being connected to a negative pole of a power source.
3. The railroad switch machine control circuit for use with a sand table of claim 1, wherein the positioning indicator circuit includes a positioning indicator light, a first resistor, and a first diode;
the first diode is connected with the positioning indicator lamp in parallel and connected with the first resistor in series;
the first resistor is connected with a front contact of the contact group of the relay;
the parallel connection point of the first diode and the positioning indicator lamp is connected to the negative electrode of the power supply.
4. The railroad switch machine control circuit for use with a sand table of claim 1, wherein the flip-bit indicating circuit comprises a flip-bit indicating lamp, a second resistor and a second diode;
the second resistor and the flip indicator lamp are connected in parallel and connected in series with the second resistor;
the parallel connection point of the second diode and the flip indicator lamp is connected to the negative electrode of the power supply;
the second resistor is connected with the rear contact of the contact group of the relay.
5. The control circuit of a railroad switch machine for use with a sand table of claim 1, wherein the action coil outer housing is provided with a coil fixing housing, and the action coil is fixed to the inside of the coil fixing housing by a coil fixing screw.
6. The control circuit of a railway switch machine for a sand table according to claim 1, wherein a first limiting block is arranged at the upper end of the permanent magnet core, and a second limiting block is arranged at the lower end of the permanent magnet core.
7. The railroad switch machine control circuit for use with a sand table of claim 1, wherein the power source is a dc power source.
8. The railroad switch machine control circuit for use with a sand table of claim 7, wherein the power source is battery No. 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321596655.0U CN220543488U (en) | 2023-06-21 | 2023-06-21 | Railway point machine control circuit for sand table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321596655.0U CN220543488U (en) | 2023-06-21 | 2023-06-21 | Railway point machine control circuit for sand table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220543488U true CN220543488U (en) | 2024-02-27 |
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ID=89969598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321596655.0U Active CN220543488U (en) | 2023-06-21 | 2023-06-21 | Railway point machine control circuit for sand table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220543488U (en) |
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2023
- 2023-06-21 CN CN202321596655.0U patent/CN220543488U/en active Active
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