CN210062692U - High-speed current collector - Google Patents

High-speed current collector Download PDF

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Publication number
CN210062692U
CN210062692U CN201920813387.0U CN201920813387U CN210062692U CN 210062692 U CN210062692 U CN 210062692U CN 201920813387 U CN201920813387 U CN 201920813387U CN 210062692 U CN210062692 U CN 210062692U
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current collector
mounting
bolt
insert
spring
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汪永明
程卫群
杨开伟
韦丽娟
万理
李永强
钱皓
余戟
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HUNAN ZHONGTONG ELECTRIC CO Ltd
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HUNAN ZHONGTONG ELECTRIC CO Ltd
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Abstract

The utility model discloses a high-speed current collector. The device mainly comprises an insulating base, a mounting base plate, a metal bottom frame, a swinging assembly, a hoisting mechanism, an inline cable and a spring assembly; the insulating base is provided with a mounting structure for connecting the current collector with a train bogie, the mounting structure comprises a mounting hole and a mounting bolt, and a via hole insert is arranged in the mounting hole; the mounting bottom plate is arranged at the bottom of the insulating base and is connected with the insulating base through a thread structure, and the thread structure is an insert bolt or an insert nut. The utility model provides a hidden danger problems such as rosin joint, fatigue crack that produce through welding transition support mounting current collector, the current collector can be through mounting structure direct mount to the vehicle bogie on, it is more convenient than current collector installation, the suitability is wider, operate more laborsavingly, avoided producing the problem of wearing and tearing because of vehicle vibration between insulated base and the mounting bolt, the mechanical strength of mounting hole has also been strengthened in the embedding of via hole inserts simultaneously, the bearing capacity of current collector has been guaranteed.

Description

High-speed current collector
Technical Field
The utility model belongs to the technical field of urban rail vehicle, concretely relates to high-speed current collector.
Background
The three-rail power supply system is widely applied to urban rail transit projects in China, and the current collector is an important component of the power supply system. The current collector is also called a collector shoe, and is a set of dynamic current collecting equipment which is arranged on a train bogie and is used for dynamically collecting current from a rigid power supply rail (a third rail) for a train so as to meet the power requirement of the train. In the prior art, if the current collector operates in a high-speed state, the impact vibration level borne by the current collector structure is increased, and the current collector and a mounting transition bracket thereof are easy to generate fatigue cracks so as to fail; in addition, when the current collector runs at a high speed, the sliding shoe of the current collector is difficult to follow and cling to the power supply rail, so the line speed for supplying power by adopting the third rail is limited to a certain extent, and the running speed of a vehicle powered by the third rail is generally 40-100 km/h by the current collector arranged on a bogie. If the operation speed is to be increased (for example, 120km/h and above), the reliability of the installation structure of the current collector and the following performance of the sliding shoe must be improved, and the mechanism in the current collector solves the problems.
CN206426861U discloses a collector shoe and have its straddle type rail train, this collector shoe includes first support, second support, link assembly, elasticity support piece and locating part etc. wherein first support have be used for with automobile body fixed connection's automobile body connecting portion, according to this utility model's collector shoe, can swing spacingly to collector portion to avoid it to collide with conductor rail or conductor rail installation roof beam when derailing or getting on the orbit under the prerequisite of guaranteeing collector portion normal work. CN207466379U discloses a current collector of a magnetic suspension train and its bow, the current collector includes a sliding plate used for contacting with the current collecting network line, a supporting plate and a fixing plate used for connecting with the lifting bow arm of the current collector, one end of the supporting plate is hinged with the sliding plate, the other end is connected with the fixing plate through a spring mechanism, when the sliding plate contacts with the current collecting network line, the spring mechanism always keeps the stretching state, through the structure of the bow, the bow has elasticity, when the charged current collecting network line fluctuates, or the vehicle runs and vibrates, the change of the adaptation that the elastic bow can be fine, thereby the following performance of the current collector when running is improved, and the current collecting quality of the vehicle is improved. CN107054097B discloses a current collector, this current collector is including being used for connecting piece and the fixing base movably continuous with the bogie of vehicle, and this current collector is equipped with two collecting head, and when one of them collecting head was located current collecting potential, another collecting head was located non-current collecting potential, and this utility model's current collector can conveniently realize two collecting head's switching, and the structure is simpler, and it is convenient to maintain and detect, and the security improves.
For the current collector, because the side of the existing train bogie is not reserved with a mounting hole for mounting the current collector, the current collector can be mounted on the bogie and can be realized only by additionally mounting a transition bracket at the bottom of the bogie. The transition support is mainly formed by welding steel, and due to the limitation of the welding level and the welding process, fatigue cracks are easy to occur in the use process of the transition support, so that potential safety hazards are generated. In addition, to increase the operation speed, the following performance of the current collector shoe must be improved, and the safety performance of the spring system of the current collector is also required to be higher due to the improvement of the following performance of the current collector.
In summary, in order to eliminate the potential safety hazard caused by using the transition support and improve the reliability of the spring system, a new current collector needs to be developed.
Disclosure of Invention
In order to solve prior art, the transition support that uses welding process preparation easily appears fatigue crack and has the problem of potential safety hazard and promote spring system's reliability, the utility model aims at providing a high-speed current collector.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high speed current collector, comprising:
the insulating base is provided with a mounting structure for connecting the current collector with a train bogie;
the mounting bottom plate is arranged at the bottom of the insulating base and is connected with the insulating base through a threaded structure;
the metal underframe is arranged on the mounting bottom plate and is connected with the mounting bottom plate through a first bolt;
the swinging assembly is arranged between the metal underframe and the current collection sliding shoe, one end of the swinging assembly is hinged with the metal underframe through the center of a rotating shaft, and the other end of the swinging assembly is connected with the current collection sliding shoe through a second bolt;
the lifting mechanism is arranged on one side of the swinging assembly and is connected with the metal underframe through a third bolt;
the inner cable is arranged on the swinging assembly and is connected with the swinging assembly through a fourth bolt;
and the spring assembly is arranged between the metal bottom frame and the swinging assembly, one end of the spring assembly is hinged with the metal bottom frame through a pin shaft, and the other end of the spring assembly is hinged with the swinging assembly through a fifth bolt pin shaft.
Preferably, the number of mounting structures is 4 or 6.
Preferably, the mounting structure includes a mounting hole and a mounting bolt.
Further preferably, a via hole insert is arranged in the mounting hole, and the maximum axial section of the via hole insert includes a circle, a triangle, an equilateral polygon, a symmetrical polygon and an arbitrary polygon.
The mounting hole of the mounting structure is a bearing part of the current collector, and the via hole insert is arranged in the mounting hole, so that the strength of the mounting hole of the insulating base can be enhanced, and the problem of abrasion between the mounting hole of the insulating base and the mounting bolt is avoided.
Further preferably, the matching range of the inner diameter and the outer diameter of the via hole insert comprises 4-6 mm and 5-16 mm, 6-8 mm and 7-18 mm, 8-10 mm and 9-20 mm, 10-12 mm and 11-22 mm, 12-14 mm and 13-24 mm, 14-16 mm and 15-26 mm, 16-18 mm and 17-28 mm, 18-20 mm and 19-30 mm, 20-22 mm and 21-32 mm, 22-24 mm and 23-34 mm, 26-28 mm and 27-38 mm, and 28-30 mm and 29-40 mm; when the cross section of the via hole insert is polygonal, the outer diameter of the via hole insert is the diameter of the polygonal inscribed circle.
The inner diameter and the outer diameter range of the matched via hole insert ensure that the via hole insert has the function of enhancing the mechanical strength at the mounting hole.
Preferably, the threaded structure is an insert bolt or an insert nut.
Because the insulating base and the bogie are electrically insulated, and the insulating base can bear the whole metal part of the current collector, the using method and the structure of the standard bolt or nut cannot meet the requirements of the insulating base, and therefore the insert bolt or the insert nut is required to be used.
The current collector is borne by the insulating base, a mounting base plate arranged at the bottom of the insulating base needs to bear larger load, the mounting base plate and a metal current collecting component of the swinging component are fixed on the insulating base through bolts, the insulating base is electrically insulated from the bogie, and an insert bolt or an insert nut of the insulating base fixing mounting base plate needs to be isolated from the bogie, so that the insert bolt or the insert nut connecting the insulating base and the mounting base plate is embedded into the insulating base after a local structure is reinforced, the insulation of the insulating base and the bogie is realized, and the strength of a mounting part is also enhanced.
The insulating base in the current collector is completely insulated from the bogie, so that metal fasteners in the current collector cannot penetrate through the insulating base and appear in an creepage area of the bogie. Meanwhile, the insulating base is used as a bearing piece for the current collector metal parts such as the mounting base plate, the metal bottom frame and the swinging assembly, and the insert bolt or the insert nut of the insulating base can not penetrate through the insulating base but can achieve the capacity of bearing the current collector metal parts, so that the insert bolt or the insert nut of the insulating base can correspondingly amplify the side size according to the difference of the external diameters of threads, and the bearing capacity of the insert bolt or the insert nut of the insulating base is enhanced.
The threaded configuration also requires the use of insert bolts or insert nuts.
Further preferably, the bolt head shape of the insert bolt and the insert nut shape include a circle, a triangle, an equilateral polygon, a symmetrical polygon and an arbitrary polygon.
Further preferably, the forward joint projection area S of the bolt head of the insert bolt, the insert nut and the insulating base is more than 1.2-5 times of the cross section area of the shaft of the standard bolt or nut.
Further preferably, the fitting relationship between the forward fitting projection area S of the insert bolt head and the insert nut with the insulating base and the thread outer diameter d is shown in table 1.
TABLE 1 fitting relationship between bolt head of insert bolt, projection area S of positive fitting between insert nut and insulation base, and outer diameter d of thread
Figure BDA0002080815370000031
Preferably, a tooth socket adjusting structure is arranged between the mounting bottom plate and the metal bottom frame; the tooth groove adjusting structure comprises tooth grooves and teeth, the cross sections of the tooth grooves and the teeth are in one of a triangular shape, a trapezoidal shape, a rectangular shape and a square shape, and the relative height between the center of the rotating shaft and the running rail surface is adjusted by adjusting the relative positions of the teeth and the tooth grooves between the mounting bottom plate and the metal bottom frame.
Preferably, the spring assembly comprises a spring and a spring tab; the spring is arranged between the spring clamps; the spring pull clamp is provided with a thread structure; one end or two ends of the thread structure are provided with limiting mechanisms for preventing the spring from falling off; the screwing length L of the spring and the spring pull clamp is greater than the distance M from the spring to the spring pull clamp limiting mechanism.
Further preferably, the limiting mechanism comprises a step structure, a limiting bolt and a limiting pin shaft.
The limiting function can be realized by reserving a distance without threads on the blank of the spring puller, namely by controlling the length of the threads.
Preferably, the center of the rotating shaft comprises a buffer device and the rotating shaft, the buffer device comprises an outer ring and an inner ring, the outer ring is clamped by the metal bottom frame and the swinging assembly, the inner ring is sleeved on the rotating shaft, and a buffer material is filled between the outer ring and the inner ring.
Because the outer ring and the inner ring play a role in supporting and rotating, in order to ensure the bearing capacity, the outer ring and the inner ring are made of metal materials.
The swing assembly of the current collector rotates around the center of the rotating shaft, and the current collector is mainly contacted with the three rails through the current collecting sliding shoes of the swing assembly to complete current collection, so that in order to enhance the fatigue resistance of the current collector, a buffer device is added on the center of the rotating shaft, and the current collector can play roles of buffering and damping in the radial direction and the axial direction.
Further preferably, the cushioning material comprises at least one of an elastic element, a rubber strip and polyurethane.
The buffer device can play a role in buffering in the radial direction and the axial direction between the metal chassis and the swinging assembly and provide damping.
Preferably, the current collector further comprises a bottom cover plate, wherein the bottom cover plate is arranged below the mounting bottom plate and connected with the insulating base through a sixth bolt.
Use the utility model discloses a high-speed current collector, vehicle manufacture factory can be with current collector direct mount to vehicle bogie bottom, and the function of the former transition support is direct to be undertaken by current collector and structure, and the current collector has fine intensity and fatigue resistance ability.
In addition, in the prior art, because the sliding shoe of the current collector is difficult to follow and cling to the power supply rail well at a high speed, the line speed of power supply by adopting the third rail is limited to a certain extent, and the vehicle operation speed of power receiving from the third rail by the current collector installed on a bogie is generally 80-100 km/h. If improve the operation speed (like 120km/h and above), the following performance of current collector also must promote thereupon, and the promotion of current collector following performance also requires higher to its spring system's security performance, the utility model discloses this problem has been solved to spring unit's stop gear in the current collector.
The utility model discloses improved on the structure and the mounting means of current collector, can satisfy the higher demand of customer at the operation in-process.
The beneficial effects of the utility model are embodied as follows:
1. the utility model discloses a high-speed current collector has solved in the current vehicle, hidden danger problems such as rosin joint, fatigue crack that produce through welding transition support installation current collector, and the current collector can be installed on the vehicle bogie through the mounting structure directly, and it is more convenient to install than current collector, and the suitability is wider, operates more laborsavingly;
2. the utility model discloses mounting structure in the current collector has avoided producing the problem of wearing and tearing because of the vehicle vibration between insulating base and the mounting bolt, and the embedding of via hole inserts has also strengthened the mechanical strength of mounting hole simultaneously, has guaranteed the bearing capacity of current collector;
3. the current collector is provided with the buffer device between the mounting bottom plate and the swinging assembly, so that the fatigue resistance of the current collector is enhanced;
4. the utility model discloses be provided with stop gear among the spring assembly of current collector, guaranteed even under extreme condition, the phenomenon that the spring was deviate from the spring card can not appear yet, realized spring assembly's anticreep function, the security performance of current collector is higher.
Drawings
Fig. 1 is a schematic structural diagram of a high-speed current collector according to an embodiment of the present invention.
Fig. 2 is a bottom view of fig. 1 according to the present invention.
Fig. 3 is an installation schematic diagram of the high-speed current collector according to the embodiment of the present invention.
Fig. 4 is a partially enlarged view of a portion at a position a in fig. 3.
Fig. 5 is an installation schematic view of the insert bolt according to the embodiment of the present invention.
Fig. 6 is a front view of the insert bolt of fig. 5.
Fig. 7 and 8 are side and rear views of fig. 6.
Fig. 9 is an installation diagram of an insert nut according to an embodiment of the present invention.
Fig. 10 is a front view of the insert nut of fig. 9.
Fig. 11 and 12 are side and rear views of fig. 10.
Fig. 13 is a schematic structural view of a buffering device according to an embodiment of the present invention.
Fig. 14 is a side view of the cushioning device of fig. 8.
Fig. 15 is an installation schematic diagram of the tooth socket adjustment structure according to the embodiment of the present invention.
Fig. 16 is a schematic structural diagram of a spring assembly according to an embodiment of the present invention.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the embodiments, but the present invention is not limited to these embodiments.
Example (b):
the present example provides a high-speed current collector, as shown in fig. 1 and 2, including:
the train bogie-type electric vehicle comprises an insulating base 10, wherein a mounting structure 110 for connecting the current collector 100 and a train bogie 90 is arranged on the insulating base 10;
the mounting bottom plate 20 is arranged at the bottom of the insulating base 10, and is connected with the insulating base 10 through a threaded structure;
the metal chassis 30 is arranged on the mounting base plate 20, and is connected with the mounting base plate 20 through a first bolt;
the swinging assembly 40 is arranged between the metal underframe 30 and the current collecting slipper 420, one end of the swinging assembly 40 is hinged with the metal underframe 30 through a rotating shaft center 410, and the other end of the swinging assembly 40 is connected with the current collecting slipper 420 through a second bolt;
the lifting mechanism 50 is arranged on one side of the swinging assembly 40, and is connected with the metal underframe 30 through a third bolt;
the internal cable 60 is arranged on the swinging assembly 40, and the internal cable 60 is connected with the swinging assembly 40 through a fourth bolt;
and the spring assembly 70 is arranged between the metal underframe 30 and the swinging assembly 40, one end of the spring assembly 70 is hinged with the metal underframe 30 through a pin shaft, and the other end of the spring assembly 70 is hinged with the swinging assembly 40 through a fifth bolt pin shaft.
The mounting structures 110 include mounting holes and mounting bolts 1102, in this example 4.
The mounting hole is internally provided with a via hole insert 1103, and the maximum axial section of the via hole insert 1103 is circular.
As shown in fig. 3, the mounting hole of the mounting structure 110 is a bearing portion of the current collector 100, and the via insert 1103 is disposed in the mounting hole, so as to enhance the strength of the mounting hole of the insulating base 10 and avoid the abrasion problem between the mounting hole of the insulating base 10 and the mounting bolt 1102. Fig. 4 is a partially enlarged schematic view of the position of fig. 3A.
The inner diameter/outer diameter range of the via hole insert 1103 includes 4-6 mm/5-16 mm, 6-8 mm/7-18 mm, 8-10 mm/9-20 mm, 10-12 mm/11-22 mm, 12-14 mm/13-24 mm, 14-16 mm/15-26 mm, 16-18 mm/17-28 mm, 18-20 mm/19-30 mm, 20-22 mm/21-32 mm, 22-24 mm/23-34 mm, 26-28 mm/27-38 mm and 28-30 mm/29-40 mm.
The inside diameter/outside diameter range of the mating via insert 1103 ensures that the via insert 1103 has an effect of enhancing mechanical strength at the mounting hole.
The thread structure is an insert bolt 2010 or an insert nut 2020.
Since the insulating base 10 is electrically insulated from the bogie 90, and the insulating base 10 will carry the metal components of the entire current collector 100, the use method and structure of the standard bolt or nut cannot meet the requirements of the insulating base 10, and therefore, the use of the insert bolt or insert nut is required.
The current collector 100 is borne by the insulating base 10, the mounting base plate 20 arranged at the bottom of the insulating base 10 needs to bear a large load, the mounting base plate 20 and the metal current-receiving component of the swing assembly 40 are fixed on the insulating base 10 through the insert bolt 2010 or the insert nut 2020, because the insulating base 10 is electrically insulated from the bogie 90, the thread structure of the insulating base 10 for fixing the mounting base plate 20 must be isolated from the bogie, the insert bolt 2010 or the insert nut 2020 for connecting the insulating base 10 and the mounting base plate 20 is embedded into the insulating base 10 after reinforcing a local structure, thereby realizing the insulation of the insulating base 10 and the bogie and also reinforcing the strength of the mounting part.
The shapes of the bolt head of the insert bolt 2010 and the insert nut 2020 include a circle, a triangle, an equilateral polygon, a symmetrical polygon and an arbitrary polygon.
As shown in fig. 5 to 12, a forward attachment projection area S of the bolt head of the insert bolt 2010 and the insert nut 2020 and the insulation base 10 is greater than 1.2 to 5 times of an axial sectional area of a standard bolt or nut.
The fitting relationship between the forward fitting projection area S of the bolt head of the insert bolt 2010 and the insert nut 2020 and the insulating base 10 and the thread outer diameter d is shown in table 1.
TABLE 1 fitting relationship between bolt head of insert bolt, projection area S of positive fitting between insert nut and insulation base, and outer diameter d of thread
Figure BDA0002080815370000071
As shown in fig. 15, a tooth socket adjusting structure 2040 is provided between the mounting base plate 20 and the metal chassis 30; the tooth socket adjusting structure 2040 includes tooth sockets and teeth, the cross-sectional shapes of the tooth sockets and teeth are one of triangle, trapezoid, rectangle and square, and the relative height h between the center 410 of the rotating shaft and the running rail surface G is adjusted by adjusting the relative positions of the teeth and the tooth sockets between the mounting base plate 20 and the metal chassis 30.
As shown in fig. 16, the spring assembly 70 includes a spring 710 and a spring tab 720; the spring 710 is arranged between the spring clamps 720; the spring pull clamp 720 is provided with a thread structure; one end or two ends of the thread structure are provided with limiting mechanisms for preventing the spring 710 from falling out; the screwing length L of the spring 710 and the spring pull card 720 is larger than the distance M between the spring 710 and the limiting mechanism of the spring pull card 720.
The limiting function is realized by reserving a distance without threads on the blank of the spring puller, namely by controlling the length of the threads.
The shaft center 410 includes a buffer device and a shaft, as shown in fig. 13 and 14, the buffer device includes an outer ring 4110 sandwiched by the metal chassis 30 and the lifting mechanism 50, and an inner ring 4120 sleeved on the shaft, and a buffer material 4130 is filled between the outer ring 4110 and the inner ring 4120.
Since the outer ring 4110 and the inner ring 4120 perform supporting and rotating functions, the outer ring 4110 and the inner ring 4120 are made of metal materials to ensure the bearing capacity.
The buffer material 4130 is a rubber strip.
The damping device may provide radial and axial damping and damping between the metal chassis 30 and the wobble assembly 40.
The current collector 100 further includes a bottom cover plate 80, wherein the bottom cover plate 80 is disposed below the mounting base plate 20 and connected to the insulating base 10 through a sixth bolt.
Use the utility model discloses a high-speed current collector, vehicle manufacture factory can be with current collector direct mount to vehicle bottom, and the function of the former transition support is direct to be undertaken by current collector and structure, and the current collector has fine intensity and fatigue resistance ability.
In addition, in the prior art, because the sliding shoe of the current collector is difficult to follow and cling to the power supply rail well at a high speed, the line speed of power supply by adopting the third rail is limited to a certain extent, and the vehicle operation speed of power receiving from the third rail by the current collector installed on a bogie is generally 80-100 km/h. If the operation speed (such as 120km/h and above) is to be improved, the following performance of the current collector must be improved accordingly, the safety performance requirement of the spring system of the current collector on the improvement of the following performance of the current collector is also higher, and the utility model discloses this problem has been solved to spring assembly 70's stop gear in the current collector.
The utility model discloses improved on the structure and the mounting means of current collector, can satisfy the higher demand of customer at the operation in-process.

Claims (14)

1. A high speed current collector, comprising:
the train bogie current collector is characterized by comprising an insulating base (10), wherein a mounting structure (110) for connecting the current collector (100) and the train bogie (90) is arranged on the insulating base (10);
the mounting bottom plate (20) is arranged at the bottom of the insulating base (10), and is connected with the insulating base (10) through a threaded structure;
the metal chassis (30) is arranged on the mounting base plate (20), and is connected with the mounting base plate (20) through a first bolt;
the swinging assembly (40) is arranged between the metal chassis (30) and the current collection sliding shoe (420), one end of the swinging assembly (40) is hinged with the metal chassis (30) through a rotating shaft center (410), and the other end of the swinging assembly (40) is connected with the current collection sliding shoe (420) through a second bolt;
the lifting mechanism (50) is arranged on one side of the swinging assembly (40) and is connected with the metal chassis (30) through a third bolt;
the inner cable (60) is arranged on the swinging assembly (40), and the inner cable (60) is connected with the swinging assembly (40) through a fourth bolt; and
the spring assembly (70) is arranged between the metal bottom frame (30) and the swinging assembly (40), one end of the spring assembly (70) is hinged to the metal bottom frame (30) through a pin shaft, and the other end of the spring assembly (70) is hinged to the swinging assembly (40) through a fifth bolt pin shaft.
2. A high speed current collector according to claim 1 wherein said mounting structure (110) comprises mounting holes and mounting bolts (1102).
3. A high-speed current collector according to claim 2, wherein a via insert (1103) is disposed in the mounting hole, and the maximum axial cross-sectional shape of the via insert (1103) comprises a circle, a triangle, an equilateral polygon, a symmetrical polygon and an arbitrary polygon.
4. The high-speed current collector as claimed in claim 3, wherein the matching range of the inner diameter and the outer diameter of the via hole insert (1103) comprises 4-6 mm and 5-16 mm, 6-8 mm and 7-18 mm, 8-10 mm and 9-20 mm, 10-12 mm and 11-22 mm, 12-14 mm and 13-24 mm, 14-16 mm and 15-26 mm, 16-18 mm and 17-28 mm, 18-20 mm and 19-30 mm, 20-22 mm and 21-32 mm, 22-24 mm and 23-34 mm, 26-28 mm and 27-38 mm, and 28-30 mm and 29-40 mm; when the cross section of the via hole insert (1103) is polygonal, the outer diameter of the via hole insert is the diameter of the polygonal inscribed circle.
5. A high speed current collector according to claim 1, wherein said threaded structure is an insert bolt (2010) or an insert nut (2020).
6. A high speed current collector according to claim 5, wherein the bolt head shape of the insert bolt (2010) and the insert nut (2020) profile comprise circles, triangles, equilateral polygons, symmetrical polygons and any polygon.
7. The high-speed current collector of claim 6, wherein a forward fitting projection area S of the bolt head of the insert bolt (2010) and the insert nut (2020) and the insulation base (10) is 1.2-5 times larger than a cross-sectional area of a shaft of a standard bolt or nut.
8. A high speed current collector according to claim 7, wherein the bolt head of the insert bolt (2010) and the insert nut (2020) are in positive fit with the projected area of the insulating base (10)The fitting relation of the S and the thread outer diameter d comprises the following steps: 50.9-433 mm2And 4-6 mm, 103.9-731.8 mm26 to 8mm, 175.6 to 1108.5mm2And 8-10 mm, 266-1403 mm2And 10-12 mm, 336.7-1909.6 mm212-14 mm, 458.3-2494 mm2And 14 to 16mm, 598.6 to 3156.6mm216-18 mm, 757.6-3897 mm218 to 20mm, 935.3 to 5005.6mm220-22 mm, 1201-5611.8 mm222 to 24mm, 1346.8 to 7728.9mm226 to 28mm, 1746.9 to 7278.9mm2And 28-30 mm.
9. A high speed current collector as claimed in claim 1 wherein: a tooth groove adjusting structure (2040) is arranged between the mounting bottom plate (20) and the metal bottom frame (30); the tooth socket adjusting structure (2040) comprises tooth sockets and teeth, the cross sections of the tooth sockets and the teeth are in one of a triangle shape, a trapezoid shape, a rectangle shape and a square shape, and the relative height h between the center (410) of the rotating shaft and the running rail surface G is adjusted by adjusting the relative positions of the teeth and the tooth sockets between the mounting bottom plate (20) and the metal bottom frame (30).
10. A high speed current collector according to claim 1, wherein said spring assembly (70) comprises a spring (710) and a spring puller (720); the spring (710) is arranged between the spring clamps (720); the spring pull clamp (720) is provided with a thread structure; one end or two ends of the thread structure are provided with limiting mechanisms for preventing the spring (710) from falling out; the screwing length L of the spring (710) and the spring pull clamp (720) is larger than the distance M between the spring (710) and the limiting mechanism of the spring pull clamp (720).
11. The high-speed current collector according to claim 10, wherein the limiting mechanism comprises a step structure, a limiting bolt and a limiting pin.
12. A high-speed current collector according to claim 1, wherein the shaft center (410) comprises a buffer device and a shaft, the buffer device comprises an outer ring (4110) sandwiched by the metal chassis (30) and the lifting mechanism (50), and an inner ring (4120) sleeved on the shaft, and a buffer material (4130) is filled between the outer ring (4110) and the inner ring (4120).
13. The high-speed current collector of claim 12, wherein said cushioning material comprises at least one of elastomeric elements, rubber strips, and polyurethane.
14. The high-speed current collector according to claim 1, wherein the current collector (100) further comprises a bottom cover plate (80), and the bottom cover plate (80) is disposed below the mounting base plate (20) and connected to the insulating base (10) through a sixth bolt.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110091718A (en) * 2019-05-31 2019-08-06 湖南中通电气股份有限公司 A kind of current collection at high speed device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110091718A (en) * 2019-05-31 2019-08-06 湖南中通电气股份有限公司 A kind of current collection at high speed device

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