CN210293663U - Positioner vibration fatigue testing machine - Google Patents
Positioner vibration fatigue testing machine Download PDFInfo
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- CN210293663U CN210293663U CN201921619859.5U CN201921619859U CN210293663U CN 210293663 U CN210293663 U CN 210293663U CN 201921619859 U CN201921619859 U CN 201921619859U CN 210293663 U CN210293663 U CN 210293663U
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Abstract
The utility model relates to the technical field of accessories of an electrified railway contact network system, in particular to a positioner vibration fatigue testing machine; the test can simulate a test of applying a frequency of 1-3 Hz and an amplitude of 35-120 mm to a positioner under a +/-30% rated working tension specified by a railway industry standard; the device comprises a test frame, a copper contact wire, a contact wire terminal anchoring wire clamp, a stainless steel compensation rope, a pulley, a double-lug wedge-shaped wire clamp, a balance weight rod, a balance weight, a linear reciprocating test mechanism and a positioner, wherein the pulley is fixedly arranged at the top of the left end and the right end of the test frame, the stainless steel compensation rope is sleeved on the pulley, the stainless steel compensation rope is connected with the balance weight rod through the double-lug wedge-shaped wire clamp, a tray is arranged at the bottom end of the balance weight rod, the balance weight is placed on the tray, the linear reciprocating test mechanism is arranged in the middle of the test frame, a load sensor base is fixedly arranged on the test frame, and a load.
Description
Technical Field
The utility model relates to a technical field of electronic railway connecting net system auxiliary device especially relates to a locator vibration fatigue testing machine.
Background
As is known, a positioner is a key part for fixing the position of a contact wire in a contact network system of an electrified railway and ensuring stable current collection of a pantograph, in the standard of the railway industry, the positioner is specified to meet the vibration resistance requirements of frequency 1-3 Hz and amplitude 35-120 mm under the actual working tension of the wire and not to generate fatigue resistance requirements of cracking, deformation and the like under the alternating load of +/-30% rated working load of 50 ten thousand, the working tension in a vibration resistance test is formed by the tension of the wire, the positioner is uncertain in the actual tension due to different lengths of test lines and wire pull-out values, different test results cannot be compared equivalently, the fatigue test is only a pure tensile or compressive load working test in a specified direction, the influence caused by vibration cannot be reflected, and the two test results cannot prove the simulation performance of a product in a superposition mode, there are certain drawbacks.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a can simulate under the rated working tension of 30% of the standard regulation of railway industry, exert frequency 1 ~ 3Hz, the experimental locator vibration fatigue testing machine of amplitude 35 ~ 120mm to the locator.
The utility model discloses a locator vibration fatigue testing machine, including test frame, copper contact wire, contact wire terminal anchor fastener, stainless steel compensation rope, pulley, ears wedge clamp, weight pole, weight, straight reciprocating test mechanism and locator, the pulley is fixed to be set up in the left end of test frame and right-hand member top, copper contact wire and stainless steel compensation rope pass through contact wire terminal anchor fastener and connect, stainless steel compensation rope cover is located on the pulley, stainless steel compensation rope and weight pole pass through ears wedge clamp and connect, weight pole bottom is provided with the tray, the weight is placed on the tray, straight reciprocating test mechanism sets up in the middle part of test frame, the fixed load cell base that is provided with on the test frame, be provided with load sensor on the load cell base, the one end of locator is articulated with load cell, one end of the positioner is connected with the middle part of the copper contact wire;
the linear reciprocating test mechanism comprises a test machine body, a turbine speed reducer and an electromagnetic speed regulating motor, wherein a fixed base is arranged on the test frame, the turbine speed reducer and the electromagnetic speed regulating motor are both fixedly arranged on the fixed base, and the output end of the electromagnetic speed regulating motor is connected with the input end of the turbine speed reducer;
the testing machine body comprises a guide cylinder, a linear bearing, a linear guide rod, a connecting rod, a dovetail-shaped sliding block and a dovetail-shaped sliding groove, the dovetail-shaped sliding groove is in transmission connection with the output end of the turbine speed reducer, the dovetail-shaped sliding block is matched with the dovetail-shaped sliding groove, one end of the connecting rod is hinged to the dovetail-shaped sliding block, the other end of the connecting rod is hinged to the bottom end of the linear guide rod, the linear bearing is arranged on the linear guide rod, the guide cylinder is fixedly arranged on the testing frame, the top end of the linear guide rod penetrates out of the top end of the guide cylinder from the bottom end of the guide cylinder, the linear bearing is arranged in the guide cylinder, a supporting plate is arranged on the top end of the linear guide rod, and the supporting plate is in close.
The utility model discloses a locator vibration fatigue test machine, be provided with adjusting bolt on the dovetail spout, adjusting bolt and dovetail spout threaded connection, adjusting bolt and dovetail slider in close contact with, the dovetail spout slip can be followed to the dovetail slider.
The utility model discloses a locator vibration fatigue testing machine, be provided with displacement sensor on the guide cylinder.
The utility model discloses a locator vibration fatigue test machine still includes the electrical control box, the electrical control box is connected with electromagnetism buncher, load sensor and displacement sensor electricity respectively.
The utility model discloses a locator vibration fatigue testing machine, experimental frame all adopts square tub of weld forming.
The utility model discloses a locator vibration fatigue testing machine, the experimental frame bottom is provided with the support footing.
The utility model discloses a locator vibration fatigue testing machine, electrical control box and experimental frame separation set up.
Compared with the prior art, the beneficial effects of the utility model are that: one end of a tested piece positioner is connected with a load sensor fixed on a test frame, the other end of the tested piece positioner is connected with a copper contact wire, two ends of the copper contact wire are connected with a stainless steel compensation rope through a contact wire terminal anchoring wire clamp, a balance weight system consisting of a double-lug wedge wire clamp, a balance weight rod and a balance weight forms horizontal tension on the positioner after sliding rotation, the positioner bears +/-30% rated working tension by adjusting the weight of the balance weight during test, the vibration of the positioner is controlled by a linear reciprocating test mechanism consisting of a test machine body, a turbine reducer and an electromagnetic speed regulating motor, the frequency is 1-3 Hz, the amplitude is 35-120 mm, the electromagnetic speed regulating motor drives the turbine reducer to rotate by starting the electromagnetic speed regulating motor, the turbine reducer drives a dovetail sliding chute to rotate, and drives a dovetail sliding block to move in the dovetail sliding chute to form eccentricity (amplitude), the connecting rod pushes the linear guide rod to do linear reciprocating motion in the linear bearing, sinusoidal waveform vibration is achieved, a test with the frequency of 1-3 Hz and the amplitude of 35-120 mm can be truly simulated under +/-30% rated working tension specified by the standard of the railway industry, the problem of uncertainty of the tension of the existing positioner test is solved, meanwhile, the vibration test and the fatigue test are effectively combined, and the test result is closer to the actual stress condition of a product.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic view of a three-dimensional structure of the power mechanism of the testing machine body of the present invention;
fig. 3 is a schematic diagram of the right-side view structure of the present invention;
fig. 4 is a front view of the present invention;
FIG. 5 is a schematic view of the connection structure of the dovetail slide block and the dovetail slide groove of the present invention;
fig. 6 is a schematic diagram of the PLC control circuit connection of the present invention;
FIG. 7 is a schematic diagram of the circuit connection between the electromagnetic speed-regulating motor and the turbine reducer of the present invention;
in the drawings, the reference numbers: 1. a test frame; 2. a copper contact line; 3. a contact wire terminal anchoring wire clamp; 4. a stainless steel compensation rope; 5. a pulley; 6. a double-lug wedge-shaped wire clamp; 7. a balance weight rod; 8. a balance weight; 9. an electrical control box; 10. a load cell base; 11. a load sensor; 12. a positioner; 13. testing the organism; 14. a displacement sensor; 15. a turbo reducer; 16. an electromagnetic speed-regulating motor; 17. a linear bearing; 18. a connecting rod; 19. a dovetail shaped slider; 20. a dovetail-shaped chute; 21. adjusting bolts, 22 and supporting feet; 23. a linear guide rod; 24. a guide cylinder; 25. and (7) a supporting plate.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 7, the positioner vibration fatigue testing machine of the present invention comprises a testing frame 1, a copper contact wire 2, a contact terminal anchor clamp 3, a stainless steel compensation rope 4, a pulley 5, a binaural wedge clamp 6, a balance weight 7, a linear reciprocating testing mechanism and a positioner 12, wherein the pulley 5 is fixedly arranged on the top of the left end and the right end of the testing frame 1, the copper contact wire 2 and the stainless steel compensation rope 4 are connected through the contact terminal anchor clamp 3, the stainless steel compensation rope 4 is arranged on the pulley 5, the stainless steel compensation rope 4 is connected with the balance weight 7 through the binaural wedge clamp 6, the bottom end of the balance weight 7 is provided with a tray, the balance weight 7 is placed on the tray, the linear reciprocating testing mechanism is arranged in the middle of the testing frame 1, the testing frame 1 is fixedly provided with a load sensor base 10, the load sensor base 10 is provided with a load sensor 11, one end of a locator 12 is hinged with the load sensor 11, and one end of the locator 12 is connected with the middle part of the copper contact wire 2;
the linear reciprocating test mechanism comprises a test machine body 13, a turbine speed reducer 15 and an electromagnetic speed regulating motor 16, a fixed base is arranged on the test frame 1, the turbine speed reducer 15 and the electromagnetic speed regulating motor 16 are both fixedly arranged on the fixed base, and the output end of the electromagnetic speed regulating motor 16 is connected with the input end of the turbine speed reducer 15;
the testing machine body 13 comprises a guide cylinder 24, a linear bearing 17, a linear guide rod 23, a connecting rod 18, a dovetail-shaped sliding block 19 and a dovetail-shaped sliding groove 20, the dovetail-shaped sliding groove 20 is in transmission connection with the output end of the turbine speed reducer 15, the dovetail-shaped sliding block 19 is matched with the dovetail-shaped sliding groove 20, one end of the connecting rod 18 is hinged to the dovetail-shaped sliding block 19, the other end of the connecting rod 18 is hinged to the bottom end of the linear guide rod 23, the linear bearing 17 is arranged on the linear guide rod 23, the guide cylinder 24 is fixedly arranged on the testing frame 1, the top end of the linear guide rod 23 penetrates out of the top end of the guide cylinder 24 from the bottom end of the guide cylinder 24 in an inserting mode, the linear bearing 17 is arranged in the guide cylinder 24, a supporting plate 25 is arranged at the top; one end of a tested piece positioner is connected with a load sensor fixed on a test frame, the other end of the tested piece positioner is connected with a copper contact wire, two ends of the copper contact wire are connected with a stainless steel compensation rope through a contact wire terminal anchoring wire clamp, a balance weight system consisting of a double-lug wedge wire clamp, a balance weight rod and a balance weight forms horizontal tension on the positioner after sliding rotation, the positioner bears +/-30% rated working tension by adjusting the weight of the balance weight during test, the vibration of the positioner is controlled by a linear reciprocating test mechanism consisting of a test machine body, a turbine reducer and an electromagnetic speed regulating motor, the frequency is 1-3 Hz, the amplitude is 35-120 mm, the electromagnetic speed regulating motor drives the turbine reducer to rotate by starting the electromagnetic speed regulating motor, the turbine reducer drives a dovetail sliding chute to rotate, and drives a dovetail sliding block to move in the dovetail sliding chute to form eccentricity (amplitude), the connecting rod pushes the linear guide rod to do linear reciprocating motion in the linear bearing, sinusoidal waveform vibration is achieved, a test with the frequency of 1-3 Hz and the amplitude of 35-120 mm can be truly simulated under +/-30% rated working tension specified by the standard of the railway industry, the problem of uncertainty of the tension of the existing positioner test is solved, meanwhile, the vibration test and the fatigue test are effectively combined, and the test result is closer to the actual stress condition of a product.
In the positioner vibration fatigue testing machine of the utility model, the dovetail chute 20 is provided with the adjusting bolt 21, the adjusting bolt 21 is in threaded connection with the dovetail chute 20, the adjusting bolt 21 is in close contact with the dovetail slide block 19, and the dovetail slide block 19 can slide along the dovetail chute 20; the dovetail sliding block sliding in the dovetail sliding groove can be limited by fastening the adjusting bolt, so that the moving distance of the dovetail sliding block in the dovetail sliding groove is changed, the formed eccentric amount (amplitude) is changed, the amplitude of the positioner is changed by the transmission of the connecting rod and the linear guide rod, and multi-sine-wave-shaped vibration can be simulated.
The utility model discloses a positioner vibration fatigue testing machine, a displacement sensor 14 is arranged on a guide cylinder 24; the amplitude required by the test can be obtained through the arrangement of the displacement sensor.
The utility model discloses a locator vibration fatigue testing machine, still include electrical control box 9, electrical control box 9 is connected with electromagnetism buncher 16, load cell 11 and displacement sensor 14 electricity respectively; the electric control box obtains control over test frequency by adjusting the rotating speed of the electromagnetic speed regulating motor, and obtains test curves of load-displacement and load-time by a PCL control circuit through a load sensor and a displacement sensor.
The utility model discloses a positioner vibration fatigue testing machine, test frame 1 all adopts square pipe welding forming; the square tube is welded and formed, so that the test frame structure is more stable.
The utility model discloses a positioner vibration fatigue testing machine, the bottom end of a test frame 1 is provided with a support footing 22; the contact area between the device and the contact surface can be increased through the arrangement of the supporting feet, so that the device is more stable as a whole, and the vibration of the device in the operation process can be reduced.
The utility model discloses a locator vibration fatigue testing machine, it is at the during operation, will be connected by test piece locator one end and fix the load cell on the test frame, the other end is connected with the copper contact wire, the copper contact wire both ends are connected with stainless steel compensation rope through contact wire terminal anchor clamp, backward through the pulley, form horizontal tension to the locator by the counter weight system that ears wedge clamp, weight pole, weight constitute, during the experiment, through adjusting the weight that weighs down, make the locator bear 30% rated working tension, the vibration of locator is by the straight line reciprocating test mechanism that test organism, turbine reducer, electromagnetism buncher constitute, realize frequency 1 ~ 3Hz, amplitude 35 ~ 120mm control, through starting electromagnetism buncher, make electromagnetism buncher drive turbine reducer rotate, turbine reducer drives the swallow-tail spout rotation, drive swallow-tail slider and move in the swallow-tail spout, the eccentric amount (amplitude) is formed, the linear guide rod is pushed by the connecting rod to do linear reciprocating motion in the linear bearing, sinusoidal waveform vibration is realized, a test with the frequency of 1-3 Hz and the amplitude of 35-120 mm can be truly simulated under +/-30% rated working tension specified by the standard of the railway industry, the problem of uncertainty of the test tension of the conventional positioner is solved, meanwhile, the vibration test and the fatigue test are effectively combined, and the test result is closer to the actual stress condition of a product; the dovetail sliding block sliding in the dovetail sliding groove can be limited by fastening the adjusting bolt, so that the moving distance of the dovetail sliding block in the dovetail sliding groove is changed, the formed eccentric amount (amplitude) is changed, the amplitude of the positioner is changed by the transmission of the connecting rod and the linear guide rod, and the sine waveform can be simulated to obtain the amplitude required by the test through the displacement sensor; the electrical control box obtains control over test frequency by adjusting the rotating speed of the electromagnetic speed regulating motor, and obtains test curves of load-displacement and load-time by a PCL control circuit through a load sensor and a displacement sensor; the square tube is welded and formed, so that the test frame structure is more stable; the contact area between the device and the contact surface can be increased through the arrangement of the supporting feet, so that the device is more stable as a whole, and the vibration of the device in the operation process can be reduced.
The utility model discloses a locator vibration fatigue test machine, electromagnetic speed regulation motor, load sensor, displacement sensor and electrical control box all buy and buy to load sensor and displacement sensor and electrical control box all carry out the electricity through the instruction manual of buying together and connect.
The utility model discloses a locator vibration fatigue testing machine, above the mounting means, the connected mode or the mode that sets up of all parts are common mechanical system to the concrete structure, model and the coefficient index of all its parts are its from taking the technique, as long as can reach all can implementing of its beneficial effect, so do not add at many and give unnecessary details.
The present invention relates to a positioner vibration fatigue testing machine, and in the case of not being described in the contrary, the terms of "vertical, horizontal, front, back, inside, outside, vertical and horizontal" and the like are only used to represent the orientation of the positioner in the normal use state, or are commonly known to those skilled in the art, and should not be considered as limiting the positioner, and meanwhile, the terms of "first", "second" and "third" do not represent specific quantities and order, but are used only for name differentiation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A positioner vibration fatigue testing machine is characterized by comprising a test frame (1), a copper contact wire (2), a contact terminal anchoring wire clamp (3), a stainless steel compensation rope (4), a pulley (5), a double-lug wedge wire clamp (6), a balance weight rod (7), a linear reciprocating test mechanism and a positioner (12), wherein the pulley (5) is fixedly arranged at the top of the left end and the right end of the test frame (1), the copper contact wire (2) and the stainless steel compensation rope (4) are connected through the contact terminal anchoring wire clamp (3), the stainless steel compensation rope (4) is arranged on the pulley (5), the stainless steel compensation rope (4) and the balance weight rod (7) are connected through the double-lug wedge wire clamp (6), a tray is arranged at the bottom end of the balance weight rod (7), the balance weight rod (7) is placed on the tray, the linear reciprocating test mechanism is arranged in the middle of the test frame (1), a load sensor base (10) is fixedly arranged on the test frame (1), a load sensor (11) is arranged on the load sensor base (10), one end of a positioner (12) is hinged with the load sensor (11), and one end of the positioner (12) is connected with the middle part of the copper contact wire (2);
the linear reciprocating test mechanism comprises a test machine body (13), a turbine speed reducer (15) and an electromagnetic speed regulating motor (16), wherein a fixed base is arranged on the test frame (1), the turbine speed reducer (15) and the electromagnetic speed regulating motor (16) are both fixedly arranged on the fixed base, and the output end of the electromagnetic speed regulating motor (16) is connected with the input end of the turbine speed reducer (15);
the testing machine body (13) comprises a guide cylinder (24), a linear bearing (17), a linear guide rod (23), a connecting rod (18), a dovetail-shaped sliding block (19) and a dovetail-shaped sliding groove (20), the dovetail-shaped sliding groove (20) is in transmission connection with the output end of the turbine speed reducer (15), the dovetail-shaped sliding block (19) is matched with the dovetail-shaped sliding groove (20), one end of the connecting rod (18) is hinged with the dovetail-shaped sliding block (19), the other end of the connecting rod (18) is hinged with the bottom end of the linear guide rod (23), the linear bearing (17) is arranged on the linear guide rod (23), the guide cylinder (24) is fixedly arranged on the testing frame (1), the top end of the linear guide rod (23) is inserted from the bottom end of the guide cylinder (24) and penetrates out of the top end of the guide cylinder (24), the linear bearing (17) is arranged in the guide cylinder (24), and a supporting plate (25) is arranged at the top end of the linear guide rod, the supporting plate (25) is closely contacted with the rear part of the bottom end of the positioner (12).
2. The positioner vibration fatigue testing machine according to claim 1, wherein an adjusting bolt (21) is arranged on the dovetail-shaped sliding groove (20), the adjusting bolt (21) is in threaded connection with the dovetail-shaped sliding groove (20), the adjusting bolt (21) is in close contact with a dovetail-shaped sliding block (19), and the dovetail-shaped sliding block (19) can slide along the dovetail-shaped sliding groove (20).
3. The positioner vibration fatigue tester of claim 2, wherein a displacement sensor (14) is provided on the guide cylinder (24).
4. The positioner vibration fatigue testing machine according to claim 3, further comprising an electrical control box (9), wherein the electrical control box (9) is electrically connected with the load sensor (11) and the displacement sensor (14) of the electromagnetic speed regulating motor (16), respectively.
5. The positioner vibration fatigue testing machine according to claim 4, wherein the test frames (1) are welded and formed by square pipes.
6. Positioner vibration fatigue testing machine according to claim 5, characterized in that the bottom end of the test frame (1) is provided with support feet (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921619859.5U CN210293663U (en) | 2019-09-26 | 2019-09-26 | Positioner vibration fatigue testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921619859.5U CN210293663U (en) | 2019-09-26 | 2019-09-26 | Positioner vibration fatigue testing machine |
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| Publication Number | Publication Date |
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| CN210293663U true CN210293663U (en) | 2020-04-10 |
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| CN201921619859.5U Active CN210293663U (en) | 2019-09-26 | 2019-09-26 | Positioner vibration fatigue testing machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112264A (en) * | 2021-11-19 | 2022-03-01 | 中国直升机设计研究所 | Helicopter control lever system support vibration fatigue test verification method and device |
| CN114778050A (en) * | 2022-06-27 | 2022-07-22 | 中国飞机强度研究所 | Fatigue load flexible applying system for testing aircraft vibration superposition fatigue strength |
-
2019
- 2019-09-26 CN CN201921619859.5U patent/CN210293663U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112264A (en) * | 2021-11-19 | 2022-03-01 | 中国直升机设计研究所 | Helicopter control lever system support vibration fatigue test verification method and device |
| CN114112264B (en) * | 2021-11-19 | 2024-01-02 | 中国直升机设计研究所 | Helicopter control lever system support vibration fatigue test verification method and device |
| CN114778050A (en) * | 2022-06-27 | 2022-07-22 | 中国飞机强度研究所 | Fatigue load flexible applying system for testing aircraft vibration superposition fatigue strength |
| CN114778050B (en) * | 2022-06-27 | 2022-09-02 | 中国飞机强度研究所 | Fatigue load flexible applying system for testing aircraft vibration superposition fatigue strength |
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