CN219914831U - Portable test device for pantograph - Google Patents
Portable test device for pantograph Download PDFInfo
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- CN219914831U CN219914831U CN202320682771.8U CN202320682771U CN219914831U CN 219914831 U CN219914831 U CN 219914831U CN 202320682771 U CN202320682771 U CN 202320682771U CN 219914831 U CN219914831 U CN 219914831U
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- rope
- bevel gear
- pantograph
- storage wheel
- encoder
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- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 238000005303 weighing Methods 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 19
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 240000007651 Rubus glaucus Species 0.000 abstract description 5
- 235000011034 Rubus glaucus Nutrition 0.000 abstract description 5
- 235000009122 Rubus idaeus Nutrition 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a portable test device for a pantograph, which comprises a box body, wherein a rope storage wheel, a driving component matched with the driving of the rope storage wheel to rotate and an encoder component matched with the recording of the rope outlet length of the rope storage wheel are arranged in the box body, the driving component and the encoder component are respectively arranged at two ends of the same side of the rope storage wheel and are meshed with the rope storage wheel, the driving component drives the rope storage wheel to rotate so as to realize the winding and unwinding of a steel wire rope wound on the rope storage wheel, and meanwhile, the rotation distance of the rope storage wheel and the winding and unwinding length of the steel wire rope are recorded through the encoder component. The device is of a portable structure, the number of turns and angles of rotation of the rope storage wheel are recorded through the encoder, and the weighing sensor measures the instant tension of the steel wire rope, so that the tension corresponds to the rotation position of the rope storage wheel one by one, a curve for analyzing the state of the pantograph is generated, curve data are analyzed by combining with the raspberry pie, and the accuracy of analysis results is improved.
Description
Technical Field
The utility model belongs to the technical field of locomotive testing, and particularly relates to a portable pantograph testing device.
Background
The pantograph is an important electrical device for an electric traction locomotive to obtain electric energy from a contact net, and is installed on the top of the locomotive or a motor car. In order to ensure the operation safety, the pantograph must be checked after being used for a period of time.
In the prior art, a pantograph tester is often used for pantograph verification, and the pantograph tester comprises a winding and unwinding mechanism, a test rope, a tension sensor and a hook. One end of the test rope is fixed on the winding and unwinding mechanism, the other end of the test rope penetrates through the tension sensor to be connected to the hook, and the hook is hung on the pantograph. The winding and unwinding mechanism drives the test rope to be wound and unwound so as to realize the test of the pantograph. The stepping motor is used for driving the steel wire rope to retract and pay-off the steel wire rope, and the weight of the retracting and paying-off mechanism is weighed, so that the tension state of the pantograph is determined. Because the equipment is fixed mounting's desk-top equipment, the state detection when not dismantling of pantograph is inconvenient.
Disclosure of Invention
In order to make up for the defects of the prior art, the utility model aims to provide a portable test device for a pantograph, which aims to solve the technical problem that the existing pantograph is inconvenient to detect when not detached. In order to achieve the purpose, the specific technical scheme of the utility model is as follows:
the utility model provides a portable testing arrangement of pantograph, includes the box body, set up in the box body and store up rope sheave, cooperation drive store up rope sheave pivoted drive assembly and cooperation record store up rope sheave and go out the encoder subassembly of rope length, drive assembly with encoder subassembly set up respectively in store up the both ends of homonymy of rope sheave, and all with store up the rope sheave meshing, drive assembly drive store up rope sheave operation and realize winding up and release of establishing wire rope on storing the rope sheave, simultaneously through encoder subassembly is right store up the rotation distance of rope sheave and the length is recorded to the receipts of wire rope.
Further, the drive assembly comprises a motor, a speed reducer is arranged on an output shaft of the motor in a matched mode, a bevel gear assembly is arranged on an output shaft of the speed reducer in a matched mode, a driving gear is arranged at the other end of the bevel gear assembly in a meshed mode, and the driving gear is synchronously meshed with the rope storage wheel and the bevel gear assembly.
Further, the bevel gear assembly comprises a first bevel gear matched with the output shaft of the speed reducer, and a second bevel gear perpendicular to and meshed with the first bevel gear, a bevel gear transmission shaft is matched with the axis of the second bevel gear in a penetrating mode, a third bevel gear is arranged at one end, close to the rope storage wheel, of the bevel gear transmission shaft, and the third bevel gear is meshed with a fourth bevel gear arranged on the output shaft at the bottom of the driving gear.
Further, a bracket is arranged in the box body, and two ends of the bevel gear transmission shaft are matched and fixed with the bracket through bearings.
Further, the encoder assembly comprises an encoder gear meshed with the rope storage wheel, an encoder arranged at the bottom of the encoder gear, and a weighing sensor matched with the encoder to weigh the pantograph.
Further, a pulley assembly matched with the steel wire rope is arranged on the weighing sensor, and the steel wire rope is matched with the pantograph through the pulley assembly.
Further, the pulley assembly comprises a first fixed pulley, a second fixed pulley and a third fixed pulley, wherein the first fixed pulley and the second fixed pulley are perpendicular to each other, and the third fixed pulley is parallel to the second fixed pulley, and is used for fixedly keeping the initial direction of the steel wire rope; the second fixed pulley is used for adjusting the rope outlet direction of the steel wire rope, and the third fixed pulley is used for assisting in the rope outlet stability of the steel wire rope.
Further, the motor is a miniature high-torque direct current motor.
Further, the rope storage wheel is fixed in the box body through rope wheel shaft matching, the driving gear is fixed in the box body through driving wheel shaft matching, and the rope wheel shaft is parallel to the driving wheel shaft and is perpendicular to the box bottom plate and the box cover plate of the box body.
Further, one end of the box body is matched with the rope storage wheel to be arranged in a circular arc structure.
Compared with the prior art, the utility model has the following advantages:
(1) The rope storage wheel is driven to rotate by the aid of the cooperation of the rope storage wheel, the motor, the speed reducer, the bevel gear assembly and the driving wheel, the number of rotation turns and angles of the rope storage wheel are recorded through the encoder, the instant tension of the steel wire rope is measured through the weighing sensor, accordingly, the tension corresponds to the rotation position of the rope storage wheel one by one, a curve for analyzing the state of the pantograph is generated, curve data are analyzed by combining with the raspberry pie, and accuracy of analysis results is improved;
(2) The device changes the original fixed box type force measuring suite into the hand-held portable box type device, thereby realizing portability of the detection component, greatly reducing the equipment size due to smaller size, simultaneously changing the original force measuring equipment above 35 kg into only a few kg, reducing the size for being used on the roof, reducing the weight and being convenient to carry, greatly expanding the available range due to the fact that the device can be directly portable to the roof for use, being used for more pantographs with insufficient detection space, simultaneously reducing the number of times of dismounting the pantographs, reducing unnecessary fastener consumption, reducing the total dismounting man-hour and saving related labor cost;
(3) The utility model changes the control system taking the original industrial personal computer as the core into the control system taking the raspberry group as the core, thereby realizing the portability of the core system; the power device taking the original stepping motor as a driving core is changed into a power device taking a miniature large-torque direct-current motor as the driving core, so that the portability of the power device is realized; the transmission system of the original gear set matched with the worm gear is changed into a transmission system of which the core is a mini speed reducer matched with a bevel gear assembly, so that the portability of the transmission device is realized;
(4) Through the cooperation of the first fixed pulley, the second fixed pulley and the third fixed pulley, the encoder is driven by the fixed-clearance rope storage wheel, so that the winding and unwinding lengths of the steel wire ropes are measured most accurately, and errors are reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic side view of the present utility model.
In the figure: 1-box body, 11-box apron, 12-box bottom plate, 2-rope storage wheel, 21-rope wheel axle, 22-wire rope, 3-motor, 4-speed reducer, 5-bevel gear transmission shaft, 51-bearing, 6-bevel gear subassembly, 61-first bevel gear, 62-second bevel gear, 63-third bevel gear, 64-fourth bevel gear, 7-driving gear, 71-driving shaft, 8-encoder, 81-encoder gear, 9-pulley subassembly, 91-first fixed pulley, 92-second fixed pulley, 93-third fixed pulley, 10-weighing sensor.
Detailed Description
The portable test device for the pantograph of the present utility model is further described below with reference to the accompanying drawings.
The portable test device for the pantograph, as shown in fig. 1-2, comprises a box body 1, wherein a rope storage wheel 2, a driving component for driving the rope storage wheel 2 to rotate in a matched manner and an encoder component for recording the rope outlet length of the rope storage wheel 2 are arranged in the box body 1, the driving component and the encoder component are respectively arranged at two ends of the same side of the rope storage wheel 2 and are meshed with the rope storage wheel 2, the driving component drives the rope storage wheel 2 to rotate and wind a steel wire rope 22 on the rope storage wheel 2, and then the rotating distance of the rope storage wheel 2 is calculated through the encoder component to calculate the winding and unwinding length of the steel wire rope 22. Specifically, the driving assembly 3 comprises a motor 3, a speed reducer 4 is fixedly arranged on the bottom output shaft of the motor 3, a bevel gear assembly 6 is arranged on the bottom output shaft of the speed reducer 4 in a matched mode, a driving gear 7 is arranged at the other end of the bevel gear assembly 6 in a meshed mode, and the driving gear 7 is synchronously meshed with the rope storage wheel 2 and the bevel gear assembly 6. In the embodiment, the motor 3 is a miniature large-torque direct current motor, and the power device taking the original stepping motor as a driving core is changed into a power device taking the miniature large-torque direct current motor as the driving core, so that the portability of the power device is realized; the transmission system of the original gear set matched with the worm gear is changed into a transmission system of which the speed reducer 4 is used as a core and matched with the bevel gear component 6 for speed reduction, so that the portability of the transmission device is realized.
In this embodiment, the rope storage wheel 2 is fixed in the box body 1 through the rope wheel shaft 21 in a matching manner, the driving gear 7 is fixed in the box body 1 through the driving wheel shaft 71 in a matching manner, and the rope wheel shaft 21 is parallel to the driving wheel shaft 71 and is perpendicular to the box bottom plate 12 and the box cover plate 11 of the box body 1. The bevel gear assembly 6 comprises a first bevel gear 61 matched with the output shaft of the speed reducer 4 and a second bevel gear 62 meshed with the first bevel gear 61, wherein the shaft center of the second bevel gear 62 is penetrated with a bevel gear transmission shaft 5, the bevel gear transmission shaft 5 is fixed in the box body 1 through a bracket (not shown in the figure), and the bevel gear transmission shaft 5 and the speed reducer 4 are vertically arranged in the box body 1. Namely, a bracket is arranged in the box body 1, bearings 51 are arranged at two ends of the bevel gear transmission shaft 5 and are matched and fixed with the bracket, a third bevel gear 63 is arranged at one end of the bevel gear transmission shaft 5, which is close to the rope storage wheel 2, and the third bevel gear 63 is meshed with a fourth bevel gear 64 arranged on an output shaft at the bottom of the driving gear 7.
It can be understood that the motor 3 drives the speed reducer 4 to drive the first bevel gear 61 to rotate, and then drives the second bevel gear 62 to drive the bevel gear transmission shaft 5 to rotate, and drives the third bevel gear 63 and the fourth bevel gear meshed with the third bevel gear to rotate, so as to drive the driving gear 7 to rotate and drive the rope storage wheel 2 to operate.
In this embodiment, the encoder assembly includes an encoder gear 81 engaged with the rope storage wheel 2, an encoder 8 disposed at the bottom of the encoder gear 81, and a weighing sensor 10 for weighing the pantograph in cooperation with the encoder 8, and is used for measuring the instant tension of the wire rope 22, so that the tension corresponds to the rotation position of the rope storage wheel 2 one by one, and a curve is generated for analyzing the state of the pantograph. The weighing sensor 10 is provided with a pulley assembly 9 matched with the steel wire rope 22, the pulley assembly 9 comprises a first fixed pulley 91 and a second fixed pulley 92 which are perpendicular to each other, and a third fixed pulley 93 which is parallel to the second fixed pulley, and the first fixed pulley 91 is used for fixedly maintaining the initial direction of the steel wire rope 22; the second fixed pulley 92 adjusts the payout direction of the wire rope 22; the third fixed pulley 93 is used for assisting in the rope discharging stability of the steel wire rope 22, so that the tensioning position is not shifted relative to the box body 1 when the steel wire rope 22 is wound and unwound, and the continuous accuracy of force measurement and the accuracy of length measurement of the steel wire rope 22 are ensured.
It will be appreciated that the encoder gear 81 rotates the encoder 8 to determine the number of turns and the angle of rotation of the reserve sheave 2 and the length of the winding and unwinding of the wire rope 22. The steel wire rope 22 on the rope storage wheel 2 passes through the first fixed pulley 91, then winds the second fixed pulley 92 from the bottom of the second fixed pulley 92, reversely winds the top box 1 of the third fixed pulley 93 from the bottom of the third fixed pulley 93, and is matched with the pantograph. The third fixed pulley 93 is also provided with a clamping member (not shown) for clamping and controlling the wire rope 22, so as to maintain the control of rope discharging and rope collecting when the wire rope 22 acts on the pantograph.
In this embodiment, one end of the box body 1 is matched with the ring shape of the rope storage wheel 2 to be circular arc-shaped, so that space is saved, and the portable rope storage wheel is more portable.
When the device is specifically used, the motor 3 drives the rope storage wheel 2 to rotate, the steel wire rope 22 is wound and unwound, meanwhile, the encoder 8 records the number of turns and the angle of rotation of the rope storage wheel 2, and the weighing sensor 10 measures the instant tension of the steel wire rope 22, so that the tension corresponds to the rotation position of the rope storage wheel 2 one by one, and a curve is generated; and then the state of the pantograph is analyzed by taking the maximum value, the average value, the force difference value of the height and the like on the curve. Namely, the data of the curve are measured values of the encoder 8 and the weighing sensor 10, and the raspberry pie (not shown in the figure) is utilized for reading and analyzing, so that the system of the raspberry pie can directly upload the read data of the encoder 8 and the weighing sensor 10 to a computer for storage.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. The utility model provides a portable testing arrangement of pantograph, its characterized in that, includes box body (1), set up in box body (1) store up rope sheave (2), cooperation drive store up rope sheave (2) pivoted drive assembly and cooperation record store up the encoder subassembly of rope length of rope sheave (2), drive assembly with encoder subassembly set up respectively in store up the both ends of homonymy of rope sheave (2), and all with store up rope sheave (2) meshing, drive assembly drive store up rope sheave (2) operation and realize winding the receive and releases of wire rope (22) of establishing on storing rope sheave (2), simultaneously through encoder subassembly is right the rotation distance of storing rope sheave (2) and the receive and release length of wire rope (22) is recorded.
2. The portable pantograph testing device according to claim 1, wherein the driving assembly comprises a motor (3), a speed reducer (4) is arranged on an output shaft of the motor (3) in a matched mode, a bevel gear assembly (6) is arranged on an output shaft of the speed reducer (4) in a matched mode, a driving gear (7) is arranged at the other end of the bevel gear assembly (6) in a meshed mode, and the driving gear (7) is in synchronous meshing with the rope storage wheel (2) and the bevel gear assembly (6).
3. The portable test device for the pantograph according to claim 2, wherein the bevel gear assembly (6) comprises a first bevel gear (61) matched on an output shaft of the speed reducer (4), and a second bevel gear (62) perpendicular to and meshed with the first bevel gear (61), an axle center of the second bevel gear (62) is matched with and penetrates through the bevel gear transmission shaft (5), a third bevel gear (63) is arranged at one end, close to the rope storage wheel (2), of the bevel gear transmission shaft (5), and the third bevel gear (63) is meshed with a fourth bevel gear (64) arranged on an output shaft at the bottom of the driving gear (7).
4. A portable test device for pantograph according to claim 3, wherein a bracket is provided in the case (1), and two ends of the bevel gear transmission shaft (5) are fixed to the bracket by means of bearings (51).
5. A portable test device for a pantograph according to claim 1, characterized in that the encoder assembly comprises an encoder gear (81) engaging the sheave (2), an encoder (8) arranged at the bottom of the encoder gear (81), and a load cell (10) for weighing the pantograph in cooperation with the encoder (8).
6. The portable test device for the pantograph according to claim 5, wherein a pulley assembly (9) matched with the steel wire rope (22) is arranged on the weighing sensor (10), and the steel wire rope (22) is matched with the pantograph through the pulley assembly (9).
7. A portable test device for pantographs according to claim 6, characterized in that the pulley assembly (9) comprises a first fixed pulley (91) and a second fixed pulley (92) perpendicular to each other, and a third fixed pulley (93) parallel to the second fixed pulley, the first fixed pulley (91) being adapted to fixedly maintain the initial orientation of the wire rope (22); the second fixed pulley (92) is used for changing the rope outlet direction of the steel wire rope (22), and the third fixed pulley (93) is used for assisting in rope outlet stabilization of the steel wire rope (22).
8. A portable test device for pantographs according to claim 2, characterized in that the motor (3) is a miniature high torque dc motor.
9. A portable test device for a pantograph according to claim 2 or 3, characterized in that the rope storage wheel (2) is fixed in the box body (1) through the cooperation of a rope wheel shaft (21), the driving gear (7) is fixed in the box body (1) through the cooperation of a driving wheel shaft (71), and the rope wheel shaft (21) is parallel to the driving wheel shaft (71) and is perpendicular to the box bottom plate (12) and the box cover plate (11) of the box body (1).
10. The portable test device for the pantograph according to claim 9, wherein one end of the box body (1) is provided with a circular arc structure in cooperation with the rope storage wheel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320682771.8U CN219914831U (en) | 2023-03-31 | 2023-03-31 | Portable test device for pantograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320682771.8U CN219914831U (en) | 2023-03-31 | 2023-03-31 | Portable test device for pantograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219914831U true CN219914831U (en) | 2023-10-27 |
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ID=88464673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320682771.8U Active CN219914831U (en) | 2023-03-31 | 2023-03-31 | Portable test device for pantograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219914831U (en) |
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2023
- 2023-03-31 CN CN202320682771.8U patent/CN219914831U/en active Active
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