CN217060301U - Rail transit is earthing device for vehicle generates heat and endurance test device - Google Patents
Rail transit is earthing device for vehicle generates heat and endurance test device Download PDFInfo
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- CN217060301U CN217060301U CN202220195748.1U CN202220195748U CN217060301U CN 217060301 U CN217060301 U CN 217060301U CN 202220195748 U CN202220195748 U CN 202220195748U CN 217060301 U CN217060301 U CN 217060301U
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- transmission shaft
- grounding device
- friction disk
- disc
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Abstract
The utility model belongs to the technical field of earthing device for the rail transit vehicle, in particular to earthing device for the rail transit vehicle generates heat and endurance test device. The earthing device mounting bracket and the mount pad among the device are located the support top, the earthing device mounting bracket is located mount pad one side, the earthing device is installed to one side that the mount pad was kept away from to the earthing device mounting bracket, mount pad top fixedly connected with bearing frame, the transmission shaft is worn to be equipped with by the bearing frame, both ends are equipped with the friction disk mounting disc respectively about the transmission shaft, electrically conductive dish, the friction disk is installed to one side that electrically conductive dish was kept away from to the friction disk mounting disc, the friction disk is kept away from one side of friction disk mounting disc and the carbon brush contact among the earthing device, electrically conductive dish is kept away from one side of friction disk and is equipped with electrically conductive carbon brush of a plurality of along the hoop, the output shaft of motor passes through the rubber hold-in range and is connected with the transmission shaft transmission, the motor is connected with the converter electricity. The device has solved the current test device and can't really reflect the situation problem that generates heat of earthing device in-service use.
Description
Technical Field
The utility model belongs to the technical field of earthing device for the rail transit vehicle, in particular to earthing device for the rail transit vehicle generates heat and endurance test device.
Background
The grounding device for the rail transit vehicle is installed at a position of an axle box of the vehicle, a carbon brush in the grounding device is in contact with an axle in the axle box to conduct electricity to form a loop, and the current is generally about 600A, so that strict requirements are imposed on the heating of a contact surface between the grounding device and the axle box, and because the axle rotates at high speed in a working state, a friction disc in the axle box and a carbon brush surface in the grounding device form friction, so that strict requirements are imposed on the abrasion of the carbon brush.
In the prior art, the grounding device can only be electrified in a static state for testing, and the real use environment and the high-speed rotation state of the grounding device in actual use cannot be simulated at all, so that the heating condition of the grounding device in actual use cannot be reflected truly, and the referential performance of test data is not high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rail transit earthing device for vehicle generates heat and endurance test device, has solved the situation problem that generates heat that current test device can't truly reflect earthing device in the in-service use.
The above object of the present invention can be achieved by the following technical solutions:
the heating and endurance test device for the grounding device for the rail transit vehicle comprises a support, a grounding device mounting frame, a plurality of mounting seats, a plurality of bearing seats, a motor, a frequency converter and a transmission shaft;
the grounding device mounting frame and the mounting seats are both positioned at the top of the support, a plurality of mounting seats are arranged at intervals from left to right and positioned on the same horizontal line, the grounding device mounting frame is positioned at the leftmost end of the left side of the mounting seats, one side of the grounding device mounting frame, which is far away from the mounting seats, is detachably connected with a grounding device through bolts, the top of the mounting seats is fixedly connected with the bearing seat, the bearing seat penetrates through the transmission shaft, the left end and the right end of the transmission shaft are respectively sleeved with a friction disk mounting disc and a conductive disc, one side of the friction disk mounting disc, which is far away from the conductive disc, is provided with a friction disk, one side of the friction disk mounting disc, which is far away from the friction disk, is in contact with carbon brushes in the grounding device, one side of the conductive disc, which is far away from the friction disk, is provided with a plurality of conductive carbon brushes in the annular direction, and an output shaft of the motor is in transmission connection with the transmission shaft through a rubber synchronous belt, the motor is electrically connected with the frequency converter.
The preferred scheme is as follows:
preferably: the output pot head of motor is equipped with synchronous pulley A, the outside cover of transmission shaft is equipped with synchronous pulley B, synchronous pulley A with the transmission is connected with between the synchronous pulley B the rubber hold-in range.
Preferably, the following components: the support is divided into an upper layer and a lower layer, and the motor and the frequency converter are located on the second layer of the support.
Preferably: the grounding device mounting frame is L-shaped.
Preferably: and insulation plates are arranged at the joint of the grounding device and the grounding device mounting frame and the joint of the bearing seat and the mounting seat.
Preferably: the inner ring of the bearing seat is in interference fit with the outer side of the transmission shaft, and the friction disc mounting disc and the conductive disc are in interference fit with the transmission shaft respectively.
Preferably: the transmission shaft is made of pure copper, and the diameter of the transmission shaft is 60 mm.
Preferably: the conductive disc is made of brass, and the diameter of the conductive disc is 200 mm.
To sum up, the utility model discloses following beneficial effect has:
1. the position of the grounding device mounting frame relative to the friction disc is adjusted, so that the pressure of the carbon brush in the grounding device relative to the friction disc is adjusted, and the grounding device mounting frame can be suitable for grounding devices of different models.
2. The rotating speed of the friction disc is controlled at 10r/min, so that the temperature of the friction disc is uniform, and the influence of friction heating of the carbon brush and the friction disc is avoided.
3. The friction disk mounting plate and the transmission shaft are in interference fit, so that the transmission speed of the friction disk and the transmission shaft is ensured to be synchronous.
4. The transmission shaft adopts pure copper to make, the diameter is 60mm, can satisfy under the great condition of test current, the current-carrying capacity of transmission shaft has sufficient capacity, and have good electric conductive property, avoid producing too big heat, electrically conductive dish adopts the brass to make, the diameter is 200mm, can avoid the heat conduction in-process of electric current to take place to generate heat and the wearing and tearing problem, thereby for earthing device provides the electric current, the state of generating heat of simulation earthing device in the in-service use, improve the authenticity of whole device in the test process.
5. The connection of earthing device and earthing device mounting bracket, the connection of bearing frame and mount pad all are provided with the insulation board, and the insulation board can play the isolation, avoids support and motor electrified, improves authenticity and the security that the device used.
Drawings
Fig. 1 is a schematic structural diagram in the embodiment.
In the figure, 1, a bracket; 2. a grounding device mounting frame; 3. a mounting seat; 4. a bearing seat; 5. an electric motor; 6. a frequency converter; 7. a drive shaft; 8. a conductive plate; 9. a conductive carbon brush; 10. a friction disk mounting plate; 11. a friction disk; 12. a grounding device; 13. a rubber synchronous belt; 14. a synchronous pulley A; 15. a synchronous pulley B; 16. an insulating plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In which like parts are designated by like reference numerals. It should be noted that the terms "upper", "lower", "left", "right", "top", "inner" and "outer" used in the following description refer to directions in the drawings, but are not limited thereto.
As shown in fig. 1, the grounding device heating and endurance test device for rail transit vehicles comprises a support 1, a grounding device mounting frame 2, a plurality of mounting seats 3, a plurality of bearing seats 4, a motor 5, a frequency converter 6 and a transmission shaft 7;
the grounding device mounting frames 2 and the mounting seats 3 are both positioned at the top of the support 1, a plurality of mounting seats 3 are arranged at intervals from left to right and positioned on the same horizontal line, the grounding device mounting frame 2 is positioned at the left side of the leftmost mounting seat 3, one side of the grounding device mounting frame 2, which is far away from the mounting seat 3, is detachably connected with a grounding device 12 through bolts, the top of the mounting seat 3 is fixedly connected with a bearing seat 4, the bearing seat 4 is penetrated with a transmission shaft 7, the left end and the right end of the transmission shaft 7 are respectively sleeved with a friction disc mounting disc 10 and a conductive disc 8, one side of the friction disc mounting disc 10, which is far away from the conductive disc 8, is provided with a friction disc 11, one side of the friction disc 11, which is far away from the friction disc mounting disc 10, is contacted with carbon brushes in the grounding device 12, one side of the conductive disc 8, which is far away from the friction disc 11, is provided with a plurality of conductive carbon brushes 9 in the annular direction, and an output shaft of the motor 5 is in transmission connection with the transmission shaft 7 through a rubber synchronous belt 13, the motor 5 is electrically connected to the frequency converter 6.
The output end of the motor 5 is sleeved with a synchronous pulley A14, the outer side of the transmission shaft 7 is sleeved with a synchronous pulley B15, and a rubber synchronous belt 13 is connected between the synchronous pulley A14 and the synchronous pulley B15 in a transmission mode.
The bracket 1 is divided into an upper layer and a lower layer, and the motor 5 and the frequency converter 6 are positioned on the second layer of the bracket 1.
The earthing device mounting bracket 2 is L-shaped.
And insulating plates 16 are arranged at the joint of the grounding device 12 and the grounding device mounting frame 2 and the joint of the bearing seat 4 and the mounting seat 3.
The inner ring of the bearing seat 4 is in interference fit with the outer side of the transmission shaft 7, and the friction disc mounting disc 10 and the conductive disc 8 are in interference fit with the transmission shaft 7 respectively.
The material of transmission shaft 7 is pure copper, and the diameter of transmission shaft 7 is 60 mm.
The material of conductive disc 8 is brass and the diameter of conductive disc 8 is 200 mm.
The whole device is simple in design, convenient to install and detach, suitable for grounding devices 12 of different models, and high in safety, and voltage in the test process is controlled below 5V.
The pressure of the carbon brushes inside the grounding device 12 relative to the friction disc 11 can be adjusted by adjusting the position of the grounding device mounting frame 2 relative to the friction disc 11, so that the grounding device can be suitable for different types of grounding devices 12.
The rotating speed of the friction disc 11 is controlled at 10r/min, so that the temperature of the friction disc 11 is uniform, and the influence of friction heating of the carbon brush and the friction disc 11 is avoided.
The friction disc mounting plate 10 and the transmission shaft 7 are in interference fit, so that the transmission speeds of the friction disc 11 and the transmission shaft 7 are ensured to be synchronous.
The junction of earthing device 12 and earthing device mounting bracket 2, the junction of bearing frame 4 and mount pad 3 all are provided with insulation board 16, and insulation board 16 can play the isolation effect, avoids support 1 and motor 5 electrified, improves authenticity and the security that the device used.
The specific implementation process comprises the following steps:
the rotational speed of converter 6 control motor 5, motor 5 drives transmission shaft 7 through rubber hold-in range 13 and rotates, transmission shaft 7 takes place to rotate inside bearing frame 4, bearing frame 4 supports and guide effect to transmission shaft 7, transmission shaft 7 drives friction disc mounting disc 10, electrically conductive dish 8 synchronous revolution, friction disc mounting disc 10 drives friction disc 11 and rotates the carbon brush face friction of in-process with earthing device 12, electrically conductive 9 external currents of carbon brush that electrically conductive dish 8 set up, electrically conductive 9 transfers the current for electrically conductive dish 8, electrically conductive dish 8 transfers the current for transmission shaft 7, transmission shaft 7 transfers the current for friction disc 11 through friction disc mounting disc 10, friction disc 11 transfers the current for earthing device 12.
The friction disc mounting plate 10 simulates an axle in an axle box in an actual process, the transmission shaft 7 can ensure that the friction disc mounting plate 10 and the friction disc 11 rotate in a simulated real state, the conductive disc 8 transmits current to the transmission shaft 7 through the conductive carbon brush 9, and the transmission shaft 7 transmits the current to the grounding device 12 through the friction disc mounting plate 10 and the friction disc 11, so that a real motion state between the grounding device 12 and the axle box is realized. The connection of the grounding device 12 and the grounding device mounting frame 2 and the connection of the bearing seat 4 and the mounting seat 3 are provided with insulating plates 16, the insulating plates 16 can prevent the grounding device 12 and the transmission shaft 7 from transmitting current to the support 1, and the support 1 and the motor 5 are prevented from being electrified, so that the normal operation of the whole device is influenced.
The utility model provides a test device can change the motor 5, rubber hold-in range 13, synchronous pulley A14 and synchronous pulley B15 of suitable model according to the model of the earthing device of in-service use when carrying out the durability test.
The present embodiment is to explain the present invention, but it is not to limit the present invention, and the changes, modifications, additions or replacements made within the scope of the present invention shall all belong to the protection scope of the present invention, and after reading the present specification, the skilled person can make modifications without creative contribution to the present embodiment as required, but as long as the present invention is protected by patent law within the scope of the claims of the present invention.
Claims (8)
1. Track is earthing device for transportation vehicles generates heat and endurance test device, its characterized in that: the grounding device comprises a support (1), a grounding device mounting frame (2), a plurality of mounting seats (3), a plurality of bearing seats (4), a motor (5), a frequency converter (6) and a transmission shaft (7);
earthing device mounting bracket (2) with mount pad (3) all are located the top of support (1), a plurality of mount pad (3) from left to right the interval set up and are located same water flat line, earthing device mounting bracket (2) are located the leftmost end the left side of mount pad (3), earthing device mounting bracket (2) are kept away from one side of mount pad (3) is through bolt detachable connections with earthing device (12), the top fixedly connected with of mount pad (3) bearing frame (4), bearing frame (4) are worn to be equipped with transmission shaft (7), both ends are equipped with friction disk mounting disc (10), electrically conductive dish (8) respectively about transmission shaft (7), friction disk mounting disc (10) are kept away from friction disk (11) are installed to one side of electrically conductive dish (8), friction disk (11) are kept away from one side of friction disk mounting disc (10) with carbon brush in earthing device (12) connects Touch, electrically conductive dish (8) are kept away from one side of friction disk (11) is provided with a plurality of electrically conductive carbon brush (9) along the hoop, the output shaft of motor (5) pass through rubber hold-in range (13) with transmission shaft (7) transmission is connected, motor (5) with converter (6) electricity is connected.
2. The rail transit vehicle grounding device heat generation and endurance test apparatus of claim 1, wherein: the output pot head of motor (5) is equipped with synchronous pulley A (14), the outside cover of transmission shaft (7) is equipped with synchronous pulley B (15), synchronous pulley A (14) with the transmission is connected with between synchronous pulley B (15) rubber hold-in range (13).
3. The rail transit vehicle grounding device heat generation and endurance test apparatus of claim 2, wherein: the support (1) is divided into an upper layer and a lower layer, and the motor (5) and the frequency converter (6) are located on the second layer of the support (1).
4. The rail transit vehicle grounding device heat generation and endurance test apparatus according to claim 1, wherein: the grounding device mounting frame (2) is L-shaped.
5. The rail transit vehicle grounding device heat generation and endurance test apparatus of claim 1, wherein: and insulating plates (16) are arranged at the joints of the grounding device (12) and the grounding device mounting frame (2) and the joints of the bearing seat (4) and the mounting seat (3).
6. The rail transit vehicle grounding device heat generation and endurance test apparatus of claim 1, wherein: the inner ring of the bearing seat (4) is in interference fit with the outer side of the transmission shaft (7), and the friction disc mounting disc (10) and the conductive disc (8) are in interference fit with the transmission shaft (7) respectively.
7. The rail transit vehicle grounding device heat generation and endurance test apparatus according to claim 1, wherein: the transmission shaft (7) is made of pure copper, and the diameter of the transmission shaft (7) is 60 mm.
8. The rail transit vehicle grounding device heat generation and endurance test apparatus according to claim 1, wherein: the conductive disc (8) is made of brass, and the diameter of the conductive disc (8) is 200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220195748.1U CN217060301U (en) | 2022-01-24 | 2022-01-24 | Rail transit is earthing device for vehicle generates heat and endurance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220195748.1U CN217060301U (en) | 2022-01-24 | 2022-01-24 | Rail transit is earthing device for vehicle generates heat and endurance test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217060301U true CN217060301U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220195748.1U Active CN217060301U (en) | 2022-01-24 | 2022-01-24 | Rail transit is earthing device for vehicle generates heat and endurance test device |
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| Country | Link |
|---|---|
| CN (1) | CN217060301U (en) |
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- 2022-01-24 CN CN202220195748.1U patent/CN217060301U/en active Active
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