CN215678726U - Magnetic track remanence testing device - Google Patents
Magnetic track remanence testing device Download PDFInfo
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- CN215678726U CN215678726U CN202121745907.2U CN202121745907U CN215678726U CN 215678726 U CN215678726 U CN 215678726U CN 202121745907 U CN202121745907 U CN 202121745907U CN 215678726 U CN215678726 U CN 215678726U
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- magnetic track
- rotary drum
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Abstract
The utility model provides a magnetic track residual magnetism testing device, which comprises a steel plate and two groups of suspension adjusting groups, wherein the two groups of suspension adjusting groups can horizontally move relative to the steel plate along the same horizontal direction; each group of suspension adjusting groups comprises a vertical lifting mechanism and a hoisting mechanism, and the vertical lifting mechanism controls the hoisting mechanism to lift integrally along the vertical direction; the suspender of the hoisting mechanism can realize the suspension and hoisting of the magnetic track to be tested through the cooperation of the limiting nut, the compression spring, the adjusting nut, the rotary drum and the like, and can simulate the power-off rebound in an actual use scene. The magnetic rail residual magnetism tester is simple in structure, convenient to adjust, suitable for magnetic rail brakes of various specifications and capable of visually testing the residual magnetism of the magnetic rail.
Description
Technical Field
The utility model relates to a device for testing the residual magnetism of a magnetic track brake.
Background
The magnetic track brake is a non-adhesive brake structure applied to the emergency braking working condition of the rail car, and the performance of the magnetic track brake directly influences the running safety of the car. The magnetic track brake has a simple structure, does not have an active demagnetization function, and cannot completely avoid the problem of remanence. If the magnetic track has a problem of large residual magnetism, the magnetic track still cannot return to a normal standby position after the emergency braking is finished, and the running of the vehicle is interfered. Therefore, the problem of remanence of the magnetic track is relatively concerned in the design and production process of the magnetic track.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a magnetic track residual magnetism testing device, which can intuitively test the size of the magnetic track residual magnetism. The method specifically comprises the following steps:
the magnetic track residual magnetism testing device is characterized by comprising a steel plate and two groups of suspension adjusting groups which can horizontally move relative to the steel plate along the same horizontal direction; each group of suspension adjusting groups comprises a vertical lifting mechanism and a hoisting mechanism, and the vertical lifting mechanism controls the hoisting mechanism to lift integrally along the vertical direction; hoisting machine constructs includes:
a hanger rod which is integrally a threaded rod having an external thread and is formed with a rotation prevention surface parallel to a rod center line;
the hoisting piece is fixedly connected to the bottom of the suspender;
the upper surface of the hoisting platform is provided with a guide blind hole, the center of the bottom of the hole is provided with a central through hole, the suspender penetrates through the central through hole in a sliding manner, and the central through hole is provided with an anti-rotation hole wall surface correspondingly matched with the anti-rotation surface of the suspender;
the limiting nut is sleeved on the suspension rod in a threaded manner, and the upper surface of the limiting nut can be abutted against the lower surface of the hoisting platform;
the rotary drum comprises a cylinder body with an opening at the upper end, the opening at the lower end of the cylinder body is plugged and fixedly connected with a disc body of a flange plate (542), and a protruding pipe body of the flange plate is embedded into and in sliding fit with a guide blind hole of the hoisting platform;
the driving unit is connected with and drives the rotary drum to rotate;
the pressure sensor is sleeved on the protruding pipe body and clamped between the flange plate body and the upper surface of the hoisting platform;
the jib is by supreme ring flange and the cylinder bore of barrel of wearing through the rotary drum in proper order down, and rotary drum barrel inner wall evenly is equipped with a plurality of guide ways that length direction and hole center paralleled, and jib threaded connection in the rotary drum has adjusting nut, and the even protruding a plurality of guide teeth that correspond with the guide way that are equipped with of adjusting nut periphery, still overlaps on the jib in the rotary drum and has a compression spring, and both ends are butt adjusting nut and ring flange respectively about the compression spring.
Further, the driving unit includes:
the large-diameter toothed ring is fixedly sleeved on the outer surface of the rotary drum;
the adjusting motor is fixed with the hoisting platform;
and the small-diameter teeth are coaxially and fixedly connected with the output shaft of the adjusting motor and are in meshing transmission with the large-diameter toothed ring.
The vertical lifting mechanism comprises a supporting bottom plate, a vertical plate, a vertical linear guide rail, a vertical sliding block, a vertical lifting connecting block and a screw and nut pair; the lower surface of the supporting bottom plate is connected with a guide rail sliding block group to realize horizontal movement relative to the steel plate; the vertical plate is vertically fixed on the supporting bottom plate, two parallel vertical linear guide rails are fixed on the front surface of the vertical plate, and a screw of the screw-screw nut pair is vertically and rotatably connected between the two vertical linear guide rails; the middle part of the vertical lifting connecting block is fixedly connected with the nut, and the two ends of the vertical lifting connecting block are respectively connected with the corresponding vertical linear guide rails in a sliding manner through the sliding blocks; the hoisting mechanism is fixedly connected with the vertical lifting connecting block.
The lead screw is connected with a lifting control motor through a belt transmission set to drive the lead screw to rotate.
The lifting control motor is fixed on the rear surface of the vertical plate.
The steel plate is made of the same material as the steel rail.
The magnetic rail residual magnetism tester is simple in structure, convenient to adjust, suitable for magnetic rail brakes of various specifications and capable of visually testing the residual magnetism of the magnetic rail.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic front view of the apparatus;
FIG. 2 is a perspective view of the present apparatus;
FIG. 3 is a side view of a single suspension adjustment group with reinforcing ribs on one side hidden for ease of illustration of the lift control motor;
figure 4 is an exploded schematic view of the hoisting mechanism;
fig. 5 is a schematic perspective view of the hoisting platform.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in the figure, the magnetic track residual magnetism testing device comprises a steel plate 1 and two groups of suspension adjusting groups, wherein the two groups of suspension adjusting groups can horizontally move relative to the steel plate 1 along the same horizontal direction, so that the adjustment of the space between the two groups of suspension adjusting groups is realized, and the magnetic track residual magnetism testing device is suitable for magnetic track brakes with different lengths.
The steel plate 1 is made of the same material as the steel rail and is used for simulating the matching of the steel rail and a tested magnetic track during testing.
Each group of suspension adjusting groups comprises a vertical lifting mechanism and a hoisting mechanism, the bottom end of the vertical lifting mechanism is connected with the steel plate 1 in a sliding mode, and the vertical lifting mechanism controls the hoisting mechanism to lift integrally along the vertical direction.
Specifically, the vertical lifting mechanism comprises a supporting bottom plate 31, a vertical plate 32, a vertical linear guide rail 41, a vertical sliding block 42, a vertical lifting connecting block 47 and a screw-nut pair.
Two translation linear guide rails 21 are fixed on one side of the upper surface of the steel plate 1, and a translation sliding block 22 which is matched with the translation linear guide rails 21 to realize sliding connection is fixedly connected to the lower surface of each supporting bottom plate 31. To facilitate locking of the position and to prevent the suspension adjustment group from sliding freely on the steel plate 1, a guide slider assembly with self-locking function, such as a TRH15VL type linear guide slider, may be used.
The vertical plate 32 is vertically fixed on the supporting bottom plate 31, and a reinforcing rib plate 33 is further fixedly arranged between the vertical plate 32 and the supporting bottom plate 31 for reinforcing firmness. Two vertical linear guide rails 41 which are parallel to each other are fixed on the front surface of the vertical upright plate 32, a screw 43 in a screw nut pair is vertically and rotatably connected on the front surface of the supporting base plate 31 between the two vertical linear guide rails 43 through bearings 44 at two ends, in order to save height, a lifting control motor 45 driving the screw 43 to rotate is fixed on the rear surface of the vertical upright plate 32, an output shaft of the lifting control motor 45 is coaxially and fixedly connected with a driving belt pulley, the bottom end of the screw 43 is coaxially and fixedly connected with a driven belt pulley, and power transmission is realized between the driving belt pulley and the driven belt pulley through a belt 46.
The middle part of the vertical lifting connecting block 47 is fixedly connected with a screw of the screw-screw pair, the two ends of the vertical lifting connecting block are respectively connected with the corresponding vertical linear guide rail 41 in a sliding way through the slide block 42, and the lifting control of the vertical lifting connecting block 47 is realized through the matching of the screw-screw pair and the guide rail slide block set under the control of a lifting control motor.
The hoisting mechanism comprises a hoisting platform 51, a hoisting rod 52, a hoisting piece 53, a limiting nut 55, a pressure sensor 7, a rotary drum 54, a compression spring 57, an adjusting nut 56, a large-diameter toothed ring 61, small-diameter teeth 62 and an adjusting motor 63.
The suspension lever 52 is integrally a threaded rod having an external thread, and is cut to form an anti-rotation surface 521 parallel to the center line of the rod.
The sling 53 is fixed to the bottom of the boom 52 by a pin.
Referring to fig. 5, a guiding blind hole 511 is formed on the upper surface of the hoisting platform 51, a central through hole 512 for the boom 52 to pass through is formed in the center of the bottom of the guiding blind hole 511, and the central through hole 512 also has an anti-rotation hole wall 5121 correspondingly matched with the anti-rotation surface 521 of the boom 52, so that the boom 52 can vertically slide and ascend and descend relative to the central through hole 512 and can prevent the boom 52 from rotating around the axis.
The limiting nut 55 is sleeved on the hanger rod 52 in a threaded manner, and the upper surface of the limiting nut 55 abuts against the lower surface of the hoisting platform 51.
The rotary drum 54 comprises a cylinder body with an upper end opening, the lower end opening of the cylinder body is used for plugging and fixing a disc body 5421 of a flange plate 542, and a protruding pipe body 5422 of the flange plate 542 is embedded into the guiding blind hole 511 of the hoisting platform 51 and is in sliding fit with the guiding blind hole.
The pressure sensor 7 is sleeved on the protruding tube 5422 and clamped between the plate 5421 of the flange 542 and the upper surface of the lifting platform 51. I.e. the pressure sensor 7 is able to measure the pressure between the lower surface of the drum 54 and the lifting platform 51.
The hanger rod 52 sequentially penetrates through the through hole of the flange plate 542 of the rotary drum 54 and the drum hole of the drum body from bottom to top, the inner wall of the drum body of the rotary drum 54 is uniformly provided with a plurality of guide grooves 541 parallel to the center of the hole in the length direction, the adjusting nut 56 is sleeved on the hanger rod 52 in the rotary drum 54 in a threaded manner, the periphery of the adjusting nut 56 is uniformly provided with a plurality of guide teeth 561 corresponding to the guide grooves 541 in a protruding manner, the hanger rod 52 in the rotary drum 54 is sleeved with the compression spring 57, and the upper end and the lower end of the compression spring are respectively abutted against the upper surfaces of the disc bodies of the adjusting nut 56 and the flange plate 542.
The large-diameter toothed ring 61 is fixedly sleeved on the outer surface of the rotary drum 54, the adjusting motor 63 is fixed with the hoisting platform 51, the output shaft of the adjusting motor 53 is coaxially and fixedly connected with the small-diameter teeth 62, and the small-diameter teeth 62 are in meshing transmission with the large-diameter toothed ring 61. Namely, the adjusting motor 63, the small-diameter teeth 62 and the large-diameter ring gear 61 constitute a driving unit for driving the drum 54 to rotate. The protruding tube body 5422 of the flange plate 542 of the rotary drum 54 is in sliding fit with the guiding blind hole 511 of the hoisting platform 51, so that the rotary drum 54 can do lifting sliding relative to the hoisting platform 51, and the rotary drum can also rotate around the axis line of the rotary drum under the driving of the driving unit by taking the guiding blind hole 511 as a bearing.
The working principle is as follows: the ends of the magnetic track are suspended by the hanger rods 52, and the magnetic track is prevented from falling by the retaining blocks 53. Initially, the limit nut 55 is near the bottom of the boom at the boom. Adjusting motor 63 drives rotary drum 54 and rotates, drives inside adjusting nut 56 and rotates, because the jib is received to prevent changeing the unable rotation of restriction, the jib can rise (or fall) thereupon, treat and stop behind the magnetic track bottom apart from the steel sheet specification distance, stop nut 55 is adjusted to pressing close to hoist platform 51 bottom plane, stop nut 55 is in order to prevent to lead to the fact the spring can't be compressed because of the jib shifts up, and at this moment, the magnetic track circular telegram adsorbs the steel sheet, breaks away from the steel sheet after the outage. If the magnetic rail can not be separated from the magnetic rail, the motor drives the rotating drum 54 to adjust the compression amount of the compression spring until the magnetic rail is lifted, the current compression of the spring is kept, the test is carried out again according to the mode, and the residual magnetism can be obtained according to the value of the pressure sensor 7.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The magnetic track residual magnetism testing device is characterized by comprising a steel plate and two groups of suspension adjusting groups which can horizontally move relative to the steel plate along the same horizontal direction; each group of suspension adjusting groups comprises a vertical lifting mechanism and a hoisting mechanism, and the vertical lifting mechanism controls the hoisting mechanism to lift integrally along the vertical direction; hoisting machine constructs includes:
a suspension rod (52) which is a threaded rod having an external thread as a whole and is formed with an anti-rotation surface (521) parallel to the rod center line;
a hoisting piece (53) fixedly connected to the bottom of the boom;
the hoisting platform (51) is provided with a guide blind hole (511) on the upper surface, a central through hole (512) is formed in the center of the bottom of the hole, the suspender penetrates through the central through hole in a sliding mode, and the central through hole is provided with an anti-rotation hole wall surface (5121) which is correspondingly matched with the anti-rotation surface of the suspender;
the limiting nut (55) is sleeved on the suspension rod in a threaded manner, and the upper surface of the limiting nut can be abutted against the lower surface of the hoisting platform;
the rotary drum (54) comprises a drum body with an opening at the upper end, the opening at the lower end of the drum body is plugged and fixedly connected with a disc body (5421) of a flange plate (542), and a protruding pipe body (5422) of the flange plate is embedded into and in sliding fit with the guiding blind hole of the hoisting platform;
the driving unit is connected with and drives the rotary drum to rotate;
the pressure sensor (7) is sleeved on the protruding pipe body and clamped between the flange plate body and the upper surface of the hoisting platform;
the jib is by supreme ring flange and the cylinder bore of barrel of wearing through the rotary drum in proper order down, and rotary drum barrel inner wall evenly is equipped with a plurality of guide ways (541) that length direction and hole center paralleled, and jib threaded connection in the rotary drum has adjusting nut (56), and the even protruding direction tooth (561) that are equipped with a plurality of and guide way phase correspondences in the adjusting nut periphery, still overlaps on the jib in the rotary drum and has a compression spring (57), and both ends are butt adjusting nut and flange dish respectively about the compression spring.
2. The magnetic track residual magnetism testing device of claim 1, wherein the driving unit includes:
a large-diameter toothed ring (61) fixedly sleeved on the outer surface of the rotary drum (54);
the adjusting motor (63) is fixed with the hoisting platform (51);
and the small-diameter teeth (62) are coaxially and fixedly connected with the output shaft of the adjusting motor (53), and the small-diameter teeth (62) are meshed with the large-diameter gear ring (61) for transmission.
3. The magnetic track residual magnetism testing device of claim 1, wherein the vertical lifting mechanism comprises a supporting bottom plate (31), a vertical plate (32), a vertical linear guide rail (41), a vertical sliding block (42), a vertical lifting connecting block (47), and a screw and nut pair; the lower surface of the supporting bottom plate is connected with a guide rail sliding block group to realize horizontal movement relative to the steel plate; the vertical plate is vertically fixed on the supporting bottom plate, two parallel vertical linear guide rails are fixed on the front surface of the vertical plate, and a screw of the screw-screw nut pair is vertically and rotatably connected between the two vertical linear guide rails; the middle part of the vertical lifting connecting block is fixedly connected with the nut, and the two ends of the vertical lifting connecting block are respectively connected with the corresponding vertical linear guide rails in a sliding manner through the sliding blocks; the hoisting mechanism is fixedly connected with the vertical lifting connecting block.
4. Magnetic track residual magnetism testing device according to claim 3, characterized in that the lead screw is driven in rotation by a lift control motor (45) via a belt drive set connection.
5. The magnetic track residual magnetism testing device of claim 4, characterized in that the lift control motor (45) is fixed to the rear surface of the vertical riser.
6. The magnetic track residual magnetism testing device of claim 1, wherein the steel plate is made of the same material as the steel rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121745907.2U CN215678726U (en) | 2021-07-29 | 2021-07-29 | Magnetic track remanence testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121745907.2U CN215678726U (en) | 2021-07-29 | 2021-07-29 | Magnetic track remanence testing device |
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| Publication Number | Publication Date |
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| CN215678726U true CN215678726U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121745907.2U Active CN215678726U (en) | 2021-07-29 | 2021-07-29 | Magnetic track remanence testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117601919A (en) * | 2023-12-26 | 2024-02-27 | 中南大学 | Rail transit vehicle magnetic track brake linkage |
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2021
- 2021-07-29 CN CN202121745907.2U patent/CN215678726U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117601919A (en) * | 2023-12-26 | 2024-02-27 | 中南大学 | Rail transit vehicle magnetic track brake linkage |
| CN117601919B (en) * | 2023-12-26 | 2024-04-26 | 中南大学 | Rail transit vehicle magnetic track brake linkage |
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