CN112968581A - Power generation device in axle box and vehicle axle box - Google Patents

Abstract

The invention discloses an in-axle box power generation device and a vehicle axle box, wherein the in-axle box power generation device comprises: the stator and set up in the rotor at stator middle part, the rotor includes rotor skeleton and sets up in the magnetism portion that generates of rotor skeleton periphery, and the stator includes stator skeleton and sets up in the power generation portion of stator skeleton internal periphery, and power generation portion is connected with output electric wire, and when the rotor rotated, power generation portion produced electric current and exported along output electric wire. The power generation device in the axle box adopts a mature electromagnetic power generation principle, and is mature in technology, high in reliability and strong in safety; the power can be supplied to all wireless sensors, so that the equipment cost and the installation workload are reduced to the maximum extent; only the output wires from the power generation device to the wireless sensor exist, the number of cable cores and the size of the cable are reduced, and the problem of difficult wiring in the application of the wired sensor is reduced to a certain extent; the power generation power is large, the low power consumption requirement on the wireless sensor is not strict, and the application limit on the wireless sensor is less.

Description

Power generation device in axle box and vehicle axle box

Technical Field

The invention relates to the technical field of generators, in particular to a power generation device in an axle box. The invention also relates to a vehicle axle box comprising the in-axle-box power generation device.

Background

In order to monitor the state of a running gear of a rail transit vehicle, a sensor needs to be installed at a specified monitoring position of the running gear, at present, a wired sensor is generally adopted, and the problem of difficult wiring is faced by adopting the wired sensor. One way to solve this problem is to change a wired sensor to a wireless sensor, which is used to solve the problem of power supply of the wireless sensor.

For the problem of wireless sensor self-power supply, the following scheme can be adopted conventionally: adding an energy storage battery into the wireless sensor; or to incorporate in the wireless sensor means for converting mechanical energy (mainly vibrations) into electrical energy. However, the above solution has the following problems: the problem of safety and reliability of the energy storage battery under the strong vibration condition of rail transit is solved; the capacity of the energy storage battery is limited, so that on one hand, the application is greatly restricted due to the low power consumption of the wireless sensor, and on the other hand, the energy storage battery or the wireless sensor (for the disposable wireless sensor) needs to be replaced according to a certain period, so that the use cost is increased, and meanwhile, the maintenance cost is also increased. The device for converting mechanical energy (mainly vibration) into electrical energy has limited power generation, on one hand, the wireless sensors are greatly restricted in application due to low power consumption, and on the other hand, one power generation device needs to be arranged for each wireless sensor, so that the size is increased, and the application of the scheme is limited.

In summary, how to improve the safety, avoid the formation of a large restriction on the application, reduce the cost, and reduce the occupied space of the power generation device is a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

In view of the above, the invention aims to provide an in-axle-box power generation device, which adopts a mature electromagnetic power generation principle, has mature technology, high reliability and strong safety, can reduce equipment cost and installation workload, and reduces the problem of difficult wiring in wired sensor application; the power generation power is large, the low power consumption requirement on the wireless sensor is not strict, and the application limit on the wireless sensor is less.

Another object of the present invention is to provide a vehicle axle box including the in-axle-box power generation device described above.

In order to achieve the above purpose, the invention provides the following technical scheme:

an in-axle-box power generation device comprising: the stator and set up in the rotor at stator middle part, the rotor include rotor framework and set up in the magnetism portion that generates of rotor framework periphery, the stator include stator framework and set up in the power generation portion of stator framework inner periphery, power generation portion and output electric wire are connected, when the rotor rotates, power generation portion produces electric current and follows output electric wire exports.

Preferably, the magnetism generating part comprises a plurality of permanent magnets, single magnetic poles of all the permanent magnets are arranged outwards, and magnetic poles of adjacent permanent magnets are arranged in opposite directions.

Preferably, the periphery of the rotor framework is provided with a plurality of clamping grooves, and one permanent magnet is correspondingly inserted into one clamping groove.

Preferably, the clamping groove is a T-shaped groove, and the permanent magnet is a T-shaped magnet inserted in the T-shaped groove.

Preferably, rotor skeleton include columniform first skeleton main part and set up in a plurality of mountings of first skeleton main part periphery, the joint groove sets up in adjacent between the mounting, the mounting with the connection can be dismantled to first skeleton main part.

Preferably, the stator skeleton includes the annular second skeleton main part of circle, the portion of generating electricity includes a plurality of coils, the axis direction of coil with the radial direction of second skeleton main part is unanimous, all the coil is established ties, and is two adjacent the end of a thread of coil with output electric wire connects, or output electric wire is two adjacent the end of a thread of coil.

Preferably, the coil includes a winding post and a winding wire wound around the winding post, and a wire groove for mounting the winding post is provided on an inner circumference of the second bobbin main body.

Preferably, an insulating layer is provided on an inner periphery of the second bobbin main body.

Preferably, the clearance between the stator and the rotor is less than or equal to 2 mm.

An axle housing for a vehicle, comprising: the axle box body, the interior week of axle box body sets up axle box bearing, set up the axletree in the axle box bearing, the outer end of axletree sets up the backstop seat, the outer end spiral-lock dress axle box end cover of axle box body, the backstop seat with set up above-mentioned arbitrary one between the axle box end cover the axle box in power generation facility, rotor framework install in the outside of backstop seat, stator framework install in the inboard of axle box end cover.

Preferably, a plurality of first through holes are formed in the rotor framework, and each first through hole is internally provided with a first bolt connected with the stop seat.

Preferably, a plurality of second through holes are formed in the stator framework, and a second bolt connected with the axle box end cover is arranged in each second through hole.

Preferably, a wire fixing clamp is arranged on the side face of the stator framework, the output wire is fixed on the wire fixing clamp, a threading hole is formed in the axle box end cover, and the output wire penetrates out of the threading hole.

Preferably, a connecting hole is formed in the wire fixing clip, the connecting hole faces the second through hole closest to the output wire, and the second bolt is inserted into the connecting hole and the second through hole simultaneously.

Preferably, a boss is arranged on the outer end face of the threading hole, a nylon hose is sleeved on the output wire, a waterproof wire fixing connector is installed on the periphery of the nylon hose, and the waterproof wire fixing connector is in threaded connection with the boss.

Preferably, the minimum axial clearance between the wire fixing clip and the stop seat is greater than 2 mm.

Preferably, a plurality of stator mounting holes are formed in the axle box end cover, all the stator mounting holes are located on a first circumference, and the coaxiality between the first circumference and the axle box end cover is 0.01mm-0.1 mm.

Preferably, a plurality of rotor mounting holes are formed in the stop seat, all the rotor mounting holes are located on a second circumference, and the coaxiality of the second circumference and the inner circumference of the outer circle of the stop seat is 0.01-0.1 mm.

The power generation device in the axle box adopts a mature electromagnetic power generation principle, and is mature in technology, high in reliability and strong in safety; the power can be supplied to all wireless sensors, so that the equipment cost and the installation workload are reduced to the maximum extent; only the output wires from the power generation device to the wireless sensor exist, the number of cable cores and the size of the cable are reduced, and the problem of difficult wiring in the application of the wired sensor is reduced to a certain extent; the power generation power is large, the low power consumption requirement on the wireless sensor is not strict, and the application limit on the wireless sensor is less.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a front view of an in-axle-box power plant provided by the present invention;

FIG. 2 is an isometric view of a rotor provided by the present invention;

FIG. 3 is a schematic view of the permanent magnet mounting location provided by the present invention;

FIG. 4 is an isometric view of a stator provided by the present invention;

FIG. 5 is an exploded view of a vehicle axle housing provided by the present invention;

FIG. 6 is a schematic view of the mounting of the stator and rotor within the axle housing end caps provided by the present invention;

FIG. 7 is a cross-sectional view of a vehicle axle housing provided by the present invention;

FIG. 8 is a front view of an axle housing end cap provided by the present invention;

FIG. 9 is a front view of the stop block provided by the present invention.

In FIGS. 1-9:

1-rotor framework, 2-fixed part, 3-permanent magnet, 4-winding, 5-winding post, 6-stator framework, 7-second through hole, 8-first through hole, 9-insulating layer, 10-second bolt, 11-wire fixing plate, 12-output wire, 13-sleeve, 14-axle box end cover, 15-stator, 16-first bolt, 17-rotor, 18-stop seat, 19-axle box body, 20-boss, 21-waterproof wire fixing joint, 22-nylon hose, 23-axle box bearing, 24-axle, 25-stator mounting hole and 26-rotor mounting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the invention is to provide a power generation device in an axle box, the power generation device in the axle box adopts a mature electromagnetic power generation principle, the technology is mature, the reliability is high, the safety is strong, the equipment cost and the installation workload can be reduced, and the problem of difficult wiring in the application of a wired sensor is alleviated; the power generation power is large, the low power consumption requirement on the wireless sensor is not strict, and the application limit on the wireless sensor is less.

Another core of the present invention is to provide a vehicle axle box including the in-axle-box power generation device described above.

Referring to fig. 1 to 9, an in-axle-box power generation device includes: stator 15 and set up in the rotor 17 in stator 15 middle part, rotor 17 includes rotor skeleton 1 and sets up the portion of giving birth to magnetism in rotor skeleton 1 periphery, and stator 15 includes stator skeleton 6 and sets up the power generation portion in stator skeleton 6 internal periphery, and the power generation portion is connected with output electric wire 12, and when rotor 17 rotated, the power generation portion produced electric current and exported along output electric wire 12.

The rotor 17 is rotatable in the middle of the stator 15, and the inner circumferential surface of the stator frame 6 is disposed opposite to the outer circumferential surface of the rotor frame 1, so that the magnetic generating portion disposed on the outer circumference of the rotor frame 1 is opposite to the electric generating portion disposed on the inner circumference of the stator frame 6.

The magnetism generating part can generate a magnetic field, the power generating part is a conductor, when the rotor framework 1 rotates, the magnetism generating part and the power generating part rotate relatively, the power generating part cuts magnetic induction lines generated by the magnetism generating part, and therefore current is generated in the power generating part and is output along the output electric wire 12.

The stator framework 6 and the rotor framework 1 are made of magnetic conductive materials, so that a magnetic circuit is provided for the power generation device, the conduction of a magnetic field is facilitated, preferably, the stator framework 6 is formed by overlapping silicon steel sheets with good magnetic conductivity, the silicon steel sheets can conduct the magnetic field to form a magnetic path, and the magnetic field can return to an S pole from an N pole of the rotor 17 through the silicon steel sheets.

The rotor 17 of the power generation device in the axle box provided by the application is connected with a rotating axle 24, the stator 15 is connected with a fixed axle box end cover 14, and the rotor 17 continuously rotates along with the axle 24 to generate a changing magnetic field, so that a power generation part on the stator framework 6 in the magnetic field continuously cuts the magnetic field line to generate current and the current is conveyed outwards along the output electric wire 12.

The power generation device in the axle box adopts a mature electromagnetic power generation principle, and is mature in technology, high in reliability and strong in safety; the power can be supplied to all wireless sensors, so that the equipment cost and the installation workload are reduced to the maximum extent; only the output wire 12 from the power generation device to the wireless sensor exists, the number of cable cores and the size of the cable are reduced, and the problem of difficult wiring in the application of a wired sensor is reduced to a certain extent; the power generation power is large, the low power consumption requirement on the wireless sensor is not strict, and the application limit on the wireless sensor is less.

On the basis of the above embodiment, as a further preferable mode, the magnetism generating part includes a plurality of permanent magnets 3, a single magnetic pole of all the permanent magnets 3 is disposed outward, and a magnetic pole of an adjacent permanent magnet 3 is disposed in an opposite direction.

It should be noted that, the size and the number of the permanent magnets 3 can be set according to the actual application, all the permanent magnets 3 are arranged along the periphery of the rotor frame 1, and preferably, all the permanent magnets 3 are uniformly distributed along the periphery of the rotor frame 1, so that when the rotor 17 rotates to each angle, the currents generated in the stator 15 are equal in size, and the currents can be stably output. The magnetic poles of the adjacent permanent magnets 3 are opposite, so that magnetic induction lines generated by the permanent magnets 3 enter the power generation part and enter the adjacent permanent magnets 3 through the power generation part, and the power generation part can cut the magnetic induction lines.

On the basis of the above embodiment, as a further preferred, the periphery of the rotor frame 1 is provided with a plurality of clamping grooves, and one permanent magnet 3 is correspondingly inserted into one clamping groove.

It should be noted that, the clamping grooves are uniformly distributed on the periphery of the rotor framework 1, each clamping groove is internally provided with a corresponding permanent magnet 3 in clamping connection, and the clamping installation mode is convenient to disassemble and assemble, convenient to process and low in cost. .

Preferably, the clamping groove is a T-shaped groove, and the permanent magnet 3 is a T-shaped magnet inserted in the T-shaped groove.

It should be noted that, openings at two ends of the T-shaped slot are respectively disposed at two sides of the rotor frame 1, the surface of the T-shaped magnet attached to the rotor frame 1 is an arc surface, so that the T-shaped magnet can be completely attached to the periphery of the rotor frame 1, and the T-shaped magnet can be inserted into the T-shaped slot along the opening of the T-shaped slot at one side of the rotor frame 1, so that the T-shaped magnet can be stably mounted and conveniently dismounted.

On the basis of the above-mentioned embodiment, as further preferred, rotor skeleton 1 includes columniform first skeleton main part and sets up in a plurality of mountings 2 of first skeleton main part periphery, and the joint groove sets up between adjacent mountings 2, and mountings 2 can be dismantled with first skeleton main part and be connected.

It should be noted that the outer circumference of the first frame body is a circumferential surface, and a mounting hole may be formed in a side surface of the first frame body, so as to mount the first frame body on the stop seat 18. All mountings 2 equipartitions make all sizes of joint groove unanimous on the outer peripheral face of first skeleton main part, make the size of every permanent magnet 3 unanimous.

Preferably, the fixing member 2 is bolted to the first frame body. The periphery in first skeleton main part is installed to 2 accessible bolts of mounting, and after permanent magnet 3 packed into, the pressure that mounting 2 compressed tightly permanent magnet 3 is adjusted to accessible adjusting bolt's tightness, promotes the stability of 3 installations of permanent magnet.

On the basis of the above embodiment, as a further preferable mode, the stator frame 6 includes a second frame body having a circular ring shape, the power generation section includes a plurality of coils, an axial direction of the coils is identical to a radial direction of the second frame body, all the coils are connected in series, a terminal of each of two adjacent coils is connected to the output electric wire 12, or the output electric wire 12 is a terminal of each of two adjacent coils.

It should be noted that the inner periphery of the second framework main body is arranged right opposite to the outer periphery of the first framework main body, and the magnetic induction lines emitted by the permanent magnets 3 arranged on the outer periphery of the first framework main body are arranged in the radial direction of the first framework main body, so that the arrangement of the axial directions of all the coils is consistent with the radial direction of the second framework main body, the magnetic induction lines can be cut by the coils, and the power generation efficiency is improved.

When winding 4, the winding 4 can be clockwise or anticlockwise wound, the coils are connected in series along the circumferential direction of the second framework main body, two wire ends are respectively positioned on two adjacent coils due to the two wire ends left after all the coils are connected in series, and when the length of the remaining wire of the wire ends is short, the two wire ends are connected with the output electric wire 12, so that the circuit structure can be simplified; when the length of the remaining line of the thread end is longer, the remaining line of the thread end can be used as the output electric wire 12 for output, and other extra line connection is not needed.

In order to make the current generated by all the coils uniform when the rotor 17 rotates to any angle, it is further preferable that all the coils are uniformly distributed on the inner circumference of the second frame body on the basis of the above embodiment, so that the current output by all the coils is uniform when the rotor 17 rotates, and the stable output of the current is ensured.

In addition to the above-described embodiments, it is further preferable that the coil includes the winding post 5 and the winding wire 4 wound around the winding post 5, and the inner periphery of the second bobbin main body is provided with a wire groove for mounting the winding post 5.

It should be noted that the wire slots are slightly larger than the winding posts 5, and all the wire slots are uniformly distributed along the inner circumference of the second framework and used for embedding the winding posts 5. The winding 4 can adopt various winding methods, and can generate three-phase alternating current or single-phase alternating current. The mounting means of wrapping post 5 that this embodiment provided is simple, the handling ease.

In order to avoid the current from flowing into the second bobbin body, on the basis of the above embodiment, as a further preferable mode, the insulating layer 9 is disposed on the inner periphery of the second bobbin body, and the insulating layer 9 can isolate the second bobbin body from the winding 4, so that the current generated in the winding 4 flows out along the output wire 12, thereby avoiding the current from flowing into the second bobbin body and reducing the hidden danger.

In addition to the in-axle-box power generation device described above, the present invention also provides a vehicle axle box including: the inner circumference of the axle box body 19 is provided with an axle box bearing 23, an axle 24 is arranged in the axle box bearing 23, the outer end of the axle 24 is provided with a stop seat 18, the outer end of the axle box body 19 is buckled with an axle box end cover 14, the axle box inner power generation device disclosed by any one of the embodiments is arranged between the stop seat 18 and the axle box end cover 14, the rotor framework 1 is arranged on the outer side of the stop seat 18, and the stator framework 6 is arranged on the inner side of the axle box end cover 14.

It should be noted that the axle 24 and the stop seat 18 rotate together to drive the rotor frame 1 to rotate, the stator frame 6 is installed inside the axle box end cover 14, the axle box end cover 14 is connected with the axle box body 19, the axle 24 and the rotor frame 1 rotate when the vehicle is running, and the stator frame 6 is fixed relative to the axle box body 19 so that the power generation part and the magnet generation part rotate relative to each other, thereby enabling the power generation part to generate current.

The vehicle axle box provided by the application realizes the installation of the power generation device by utilizing the vehicle axle box structure, fully considers the operation environment of the rail vehicle, and has high engineering and implementability; the power generation device is arranged in the axle box body 19, the structure of the axle box body is utilized for protection (waterproof and dustproof), the space utilization rate is higher, the axle box body 19 is changed little, the power generation device is small in size, and more efficient electric energy production can be completed.

On the basis of the above embodiment, as a further preferred, a plurality of first through holes 8 are provided on the rotor frame 1, and a first bolt 10 connected with the stop seat 18 is provided in each first through hole 8.

It should be noted that, the arrangement position of the first through hole 8 corresponds to the position of the screw hole on the stop seat 18, and the first bolt 10 is used to correspondingly connect each first through hole 8 with the screw hole of the stop seat 18, so that the vehicle is slightly changed, a hole needs not to be formed on the stop seat 18 again, and the installation is convenient.

In order to facilitate the installation of the stator frame 6, on the basis of the above embodiment, as a further preferred, a plurality of second through holes 7 are provided on the stator frame 6, and a second bolt 16 connected with the axle box end cover 14 is provided in each second through hole 7. Mounting holes can be formed in the inner side of the axle box end cover 14, each mounting hole corresponds to each second through hole 7 one by one, and the second through holes are connected through second bolts 16, so that the installation, processing and dismounting are facilitated.

On the basis of the above embodiment, as a further preferable option, a wire fixing clip is arranged on the side surface of the stator framework 6, the output wire 12 is fixed on the wire fixing clip, a threading hole is arranged on the axle box end cover 14, and the output wire 12 penetrates out along the threading hole.

It should be noted that the wire fixing clip can be mounted on the stator frame 1 by means of bolts, and the wire fixing clip is provided with through holes and can be mounted on the stator frame 6 by means of bolts. The output wire 12 passes through the wire fixing clamp and then penetrates out along the threading hole to supply power to the sensor. The wire fixing clamp is small in size, plays a role in fixing the output wire 12 in the shaft box end cover 14, and avoids the play of the output wire 12.

In order to simplify the structure, it is preferable that a coupling hole is provided on the wire fixing clip, the coupling hole faces the second through hole 7 closest to the output wire 12, and the second bolt 10 is simultaneously inserted into the coupling hole and the second through hole 7.

It should be noted that, the structure of the wire fixing clip can be selected from various structures according to practical application conditions, for example, the wire fixing clip comprises a wire fixing plate 11 and a sleeve 13 connected with the wire fixing plate, a connecting hole is arranged on the wire fixing plate 11, and the output wire 12 passes through the sleeve 13 and then passes out along a threading hole.

For another example, the wire fixing clip includes a semi-cylindrical wire pressing groove, mounting plates are disposed on both sides or one side of the wire pressing groove, and the connecting holes are disposed on the mounting plates. When the mounting plate is arranged on one side of the line pressing groove, the connecting hole can be connected with the second through hole 7 just opposite to the connecting hole; when the mounting plates are arranged on two sides of the line pressing groove, one connecting hole is opposite to the second through hole 7, and the other connecting hole can be connected to the stator framework 6 through other bolts. The notch of the wire pressing groove is opposite to the stator framework 6, and the wire pressing groove can press the output wire 12 on the stator framework 6.

The fastener is installed to usable second bolt 10 of this embodiment and second through-hole 7, has reduced extra quantity of punching and has reduced extra bolt quantity, has reduced processing and dismouting degree of difficulty.

In addition to the above embodiments, it is further preferable that a boss 20 is provided on an outer end surface of the threading hole, a nylon hose 22 is sleeved on the output electric wire 12, a waterproof thread-fixing joint 21 is installed on an outer periphery of the nylon hose 22, and the waterproof thread-fixing joint 21 is screwed with the boss 20.

It should be noted that the boss 20 is a hollow structure and is communicated with the threading hole, and the nylon hose 22 is directly connected with the waterproof thread-fixing joint 21 to bind the output electric wire 12, so that the thread end of the output electric wire 12 is output along the nylon hose 22. Waterproof solidus connects 21 and sets up the internal thread, can with the external screw thread accordant connection of boss 20, and waterproof solidus connects 21 can lock nylon hose 22, prevents nylon hose 22 drunkenness to the leakproofness of through wires hole has been increased.

During the normal running process of the vehicle, the axle 24 has a displacement amount of 1-2mm left and right along the center line of the axle 24, so in order to avoid the collision and abrasion of the stator 15 and the stop seat 18 caused by the displacement of the axle 24 of the power generation device, the wire outlet scheme needs to consider that enough clearance is reserved between the stator 15 and the fitting thereof and the stop seat 18 after the assembly is completed to avoid the situation, and on the basis of the above embodiment, as a further preference, the minimum axial clearance between the wire fixing clamp and the stop seat 18 is more than 2 mm.

In order to meet the output power of the power supply, after the power generation device is assembled with the axle box, the gap between the stator 15 and the rotor 17 is preferably less than or equal to 2mm, and the scheme provided by the embodiment can ensure that the rotor 17 does not collide with the stator 15 in the rotation process of the rotor 17 even if partial deviation occurs in the rotation process of the rotor 17, so that the power generation device is prevented from being damaged.

If the rotor 17 is not coaxial or coaxial with the stator 15, the rotor 17 may be eccentric during rotation and collide with the stator 15, thereby damaging the power generation device. In order to solve the above problem, in addition to the above embodiment, it is further preferable that a plurality of stator mounting holes 25 are provided in the axle box end cover 14, all the stator mounting holes 25 are located on a first circumference, and the coaxiality between the first circumference and the axle box end cover 14 is 0.01mm to 0.1 mm. The present embodiment can ensure the coaxiality of the stator 15 and the axle box end cover 14, and since the axle box end cover 14 and the stop seat 18 have high coaxiality, the coaxiality of the stator 15 and the stop seat 18 can be improved.

On the basis of the above embodiment, as a further preference, the stop seat 18 is provided with a plurality of rotor mounting holes 26, all the rotor mounting holes 26 are positioned on a second circumference, and the coaxiality of the second circumference and the inner circumference of the outer circle of the stop seat 18 is 0.01mm-0.1 mm. The embodiment can ensure the coaxiality of the rotor 17 and the stop seat 18, and the coaxiality of the rotor 17 and the axle box end cover 14 can be improved due to the high coaxiality of the axle box end cover 14 and the stop seat 18, so that the coaxiality of the rotor 17 and the stator 15 is improved, and the collision of the rotor 17 and the stator 15 is avoided.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The in-axle-box power generation device and the vehicle axle box according to the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (18)

1. An in-axle-box power generation device, comprising: stator (15) and set up in rotor (17) at stator (15) middle part, rotor (17) include rotor skeleton (1) and set up in the magnetism portion that generates of rotor skeleton (1) periphery, stator (15) include stator skeleton (6) and set up in the electricity generation portion of stator skeleton (6) inner week, electricity generation portion is connected with output wire (12), when rotor (17) rotated, electricity generation portion produced current and follows output wire (12) are exported.

2. An in-axle-box power generation device according to claim 1, characterized in that the magnetism generating portion comprises a plurality of permanent magnets (3), and the individual poles of all the permanent magnets (3) are arranged outward, and the poles of the adjacent permanent magnets (3) are arranged in opposite directions.

3. The in-axle-box power generation device according to claim 2, wherein a plurality of clamping grooves are formed in the periphery of the rotor frame (1), and one permanent magnet (3) is correspondingly inserted into one clamping groove.

4. The in-axle-box power generation device according to claim 3, wherein the engagement groove is a T-shaped groove, and the permanent magnet (3) is a T-shaped magnet inserted into the T-shaped groove.

5. The in-axle-box power generation device according to claim 3, wherein the rotor frame (1) comprises a cylindrical first frame body and a plurality of fixing members (2) arranged on the periphery of the first frame body, the clamping grooves are arranged between adjacent fixing members (2), and the fixing members (2) are detachably connected with the first frame body.

6. An in-axle-box power generation device according to claim 1, wherein the stator frame (6) includes a second frame body having a circular ring shape, the power generation section includes a plurality of coils, an axial direction of the coils coincides with a radial direction of the second frame body, all the coils are connected in series, a stub of two adjacent coils is connected to the output electric wire (12), or the output electric wire (12) is a stub of two adjacent coils.

7. The in-axle-box power generation device according to claim 6, wherein the coil includes a winding post (5) and a winding wire (4) wound around the winding post (5), and a wire groove for mounting the winding post (5) is provided on an inner periphery of the second frame body.

8. The in-axle-box power generation device according to claim 6, wherein an insulating layer (9) is provided on an inner periphery of the second skeleton body.

9. An axle housing for a vehicle, comprising: axle box body (19), the inner periphery of axle box body (19) sets up axle box bearing (23), set up axletree (24) in the axle box bearing (23), the outer end of axletree (24) sets up backstop seat (18), the outer end lock joint axle box end cover (14) of axle box body (19), characterized in that, backstop seat (18) with set up any one of claim 1 to 8 between the axle box end cover (14) power generation facility in the axle box, rotor skeleton (1) install in the outside of backstop seat (18), stator skeleton (6) install in the inboard of axle box end cover (14).

10. The vehicle axle housing according to claim 9, characterized in that the rotor frame (1) is provided with a plurality of first through holes (8), and each first through hole (8) is provided with a first bolt (16) connected to the stop seat (18).

11. The vehicle axle housing according to claim 9, characterized in that the stator frame (6) is provided with a plurality of second through holes (7), and each second through hole (7) is provided with a second bolt (10) connected to the axle housing end cap (14).

12. The vehicle axle box according to claim 11, wherein a wire fixing clip is provided on a side surface of the stator frame (6), the output wire (12) is fixed to the wire fixing clip, a threading hole is provided on the axle box end cover (14), and the output wire (12) is threaded out along the threading hole.

13. The vehicle axle box according to claim 12, wherein a coupling hole is provided in the wire fixing clip, the coupling hole facing the second through hole (7) nearest to the output wire (12), and the second bolt (10) is inserted into both the coupling hole and the second through hole (7).

14. The vehicle axle box according to claim 12, wherein a boss (20) is provided on an outer end surface of the wire passing hole, a nylon hose (22) is fitted over the output electric wire (12), a waterproof wire fixing joint (21) is installed on an outer periphery of the nylon hose (22), and the waterproof wire fixing joint (21) is screwed to the boss (20).

15. A vehicle axle box according to claim 12, characterised in that the minimum axial clearance between the wire clamp and the stop seat (18) is greater than 2 mm.

16. A vehicle axle box according to claim 9, characterized in that the gap between the stator (15) and the rotor (17) is less than or equal to 2 mm.

17. The vehicle axle housing according to claim 9, wherein a plurality of stator mounting holes (25) are provided in the axle housing end cap (14), all stator mounting holes (25) being located at a first circumference, the first circumference being between 0.01mm and 0.1mm coaxial with the axle housing end cap (14).

18. A vehicle axle box according to claim 9, characterised in that the stop seat (18) is provided with a number of rotor mounting holes (26), all rotor mounting holes (26) being at a second circumference, the second circumference being between 0.01mm and 0.1mm coaxial with the inner circumference of the outer circle of the stop seat (18).

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