CN112803706B - Positioning piece, shaft end power generation device and railway vehicle - Google Patents

Abstract

The invention relates to a shaft end power generation device and a railway vehicle. The mount pad is used for fixed the axle head portion of installing in the vehicle, and the mount pad includes bedplate and the bounding wall that sets up around bedplate circumference. The rotor assembly includes an outer housing. Stator module sets up in the inside of shell body, and the cavity is located to the shell body. On the one hand, the locating part can avoid vehicle vibration in-process to lead to the fact the damage for axle head power generation facility with the damping elastic block, on the other hand, can make the rotor subassembly remain relative static with the mount pad all the time, can avoid rotor subassembly axial rebound promptly, make mount pad and rotor subassembly fixed together, mount pad and rotor subassembly keep setting up with the axle center, avoid the adverse effect because of the eccentric bringing of installation in axle head power generation facility operation process, the installation stability on the axle head is better, be favorable to realizing the consumer on the railway vehicle and continuously stably supply power.

Description

Positioning piece, shaft end power generation device and railway vehicle

Technical Field

The invention relates to the technical field of power generation devices, in particular to a positioning piece, a shaft end power generation device and a railway vehicle.

Background

Railway vehicles are vehicles used in the rail transportation sector to transport passengers and cargo. Railway vehicles are classified into two major categories, passenger cars and trucks. The existing electric equipment on the railway vehicle usually comprises a car lamp, an electric heating device, a power socket and the like, and the power consumption is not large, so that the electric equipment is usually powered by vehicle-mounted energy storage type power supply equipment, or an internal combustion engine is adopted to drive a generator to supply power. For a common train, an electric traction locomotive power supply mode is adopted, namely power is supplied on a railway line along the way through a contact network.

With the improvement of the management and control requirements of a user on the railway vehicle, it is necessary to install electric equipment such as an electric pneumatic brake, an Electronic Stability Program (ESP), an intelligent monitoring device, etc. on the railway vehicle, and if only the vehicle-mounted energy storage type power supply equipment is adopted, the electric energy of the vehicle-mounted energy storage type power supply equipment is insufficient, and the stable power supply of the electric equipment on the railway vehicle cannot be ensured.

Disclosure of Invention

Therefore, the positioning piece, the shaft end power generation device and the railway vehicle need to overcome the defects in the prior art, and are beneficial to continuously and stably supplying power to electric equipment on the railway vehicle.

The technical scheme is as follows: a positioning piece comprises a positioning main board and at least one positioning support board fixedly connected with the positioning main board; the positioning main board is provided with a first shaft hole for the connecting shaft of the shaft end power generation device to pass through, the positioning main board is fixedly sleeved on the connecting shaft through the first shaft hole, and the positioning support plate is used for being in limit fit with a main body structure of a vehicle.

The positioning main board is fixedly sleeved on the connecting shaft through the first shaft hole, the positioning main board is fixedly connected with the positioning support board, the positioning support board is in limit fit with the main structure of the vehicle, the connecting shaft is in indirect limit fit with the main structure, the main structure can avoid the rotation of the connecting shaft through the positioning piece, and the connecting shaft is fixed relative to the main structure, so that the stable work of the shaft end power generation device can be ensured, and the continuous and stable power supply of electric equipment on the railway vehicle is favorably realized.

In one embodiment, a damping bushing is arranged in the first shaft hole, and the damping bushing is sleeved on the connecting shaft.

In one embodiment, the outer wall surface of the damper sleeve is adapted to the inner wall surface of the first shaft hole, and the inner wall surface of the damper sleeve is adapted to the outer wall surface of the connecting shaft; the outer wall surface of the damping shaft sleeve is a non-circular surface, and the inner wall surface of the damping shaft sleeve is a non-circular surface.

In one embodiment, the damping shaft sleeve comprises an arc-shaped section and a straight section, and two ends of the straight section are respectively and correspondingly connected with two ends of the arc-shaped section; the damping shaft sleeve is an elastic rubber sleeve, an elastic plastic sleeve or an elastic silica gel sleeve.

In one embodiment, the ends of the positioning plate are adapted to engage in contact with the underside of the saddle of the body structure.

In one embodiment, a vibration reduction buffer layer is arranged on one end surface of the positioning support plate far away from the positioning main plate, and the positioning support plate is used for being in contact fit with the bottom surface of the bearing saddle through the vibration reduction buffer layer.

In one embodiment, the thickness of the positioning supporting plate is d, and the thickness d of the positioning supporting plate gradually decreases from one end connected with the positioning main plate to one end where the vibration reduction buffer layer is located.

In one embodiment, the number of the positioning support plates is two, and the two positioning support plates are symmetrically arranged around the axis direction of the connecting shaft.

The utility model provides an axle head power generation facility, axle head power generation facility include the setting element, axle head power generation facility still includes: the mounting seat is used for being fixedly arranged at the end part of a vehicle axle of a vehicle and comprises a seat plate and a surrounding plate arranged around the circumferential direction of the seat plate, and the surrounding plate and the seat plate are surrounded to form a cavity; the rotor assembly comprises an outer shell, the stator assembly is arranged in the outer shell, and the outer shell is arranged in the cavity; the vibration-damping elastic block is arranged in the cavity, the outer shell is connected with the seat plate through the vibration-damping elastic block, and the limiting piece is arranged on the coaming and is abutted against the outer shell; the connecting shaft, connecting shaft one end is run through the shell body and is stretched into in the shell body, the connecting shaft other end pass through the setting element be used for with the spacing cooperation of the major structure of vehicle, stator module is fixed set up in on the connecting shaft, the shell body passes through the bearing and rotationally sets up in on the connecting shaft.

The mounting seat is fixedly arranged at the axle end of the vehicle, the connecting shaft is in limit fit with the main structure of the vehicle through the positioning piece, the rotor assembly is synchronously driven to rotate when the axle end rotates in the running process of the vehicle, the stator assembly is fixed on the connecting shaft and keeps relatively static with the main structure of the vehicle, and the rotor assembly rotates relative to the stator assembly, so that the kinetic energy generated by the rotating motion of the axle of the railway vehicle in the running process can be utilized to generate electricity. In addition, because the location mainboard passes through the fixed suit in first shaft hole on the connecting axle, the location mainboard links to each other with the location extension board is fixed, the spacing cooperation of major structure of location extension board and vehicle, the indirect spacing cooperation of connecting axle and major structure like this, the major structure can avoid the connecting axle to rotate through the locating piece, realizes that the connecting axle is fixed for the major structure promptly to can guarantee axle head power generation facility steady operation, be favorable to realizing continuously stably supplying power for the consumer on the railway vehicle.

The railway vehicle comprises the shaft end power generation device, a main body structure and a vehicle shaft rotationally arranged on the main body structure, wherein a mounting seat is fixedly arranged at the end part of the vehicle shaft, and the other end of a connecting shaft is in limit fit with the main body structure through a positioning piece.

Foretell railway vehicle installs the mount pad in the axle head portion of vehicle to and make the connecting axle pass through the spacing cooperation of the major structure of setting element and vehicle, at the vehicle operation in-process like this, the synchronous rotor subassembly that drives when axle head portion rotates, stator module fixes on the connecting axle and keeps static relatively with the major structure of vehicle, just so rotor subassembly rotates for stator module, thereby can utilize the kinetic energy that railway vehicle axle rotary motion produced in the operation to generate electricity. In addition, because the location mainboard passes through the fixed suit in first shaft hole on the connecting axle, the location mainboard links to each other with the location extension board is fixed, the spacing cooperation of major structure of location extension board and vehicle, the indirect spacing cooperation of connecting axle and major structure like this, the major structure can avoid the connecting axle to rotate through the setting element, realizes that the connecting axle is fixed for the major structure promptly to can guarantee that axle head power generation facility stably works, be favorable to realizing continuously stably supplying power for the consumer on the railway vehicle.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the invention and are not intended to limit the invention.

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

Fig. 1 is a schematic structural view illustrating a shaft end power generation device according to an embodiment of the present invention mounted on an end portion of a vehicle shaft;

FIG. 2 is a view structure diagram of a positioning element according to an embodiment of the invention;

FIG. 3 is a structural view of another view angle of a positioning element according to an embodiment of the present invention;

FIG. 4 is a view of a positioning element according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a damping sleeve according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a shaft end power generation device according to an embodiment of the present invention;

FIG. 7 is an enlarged schematic view of FIG. 6 at A;

fig. 8 is another perspective structural diagram of the shaft end power generation device according to an embodiment of the invention;

FIG. 9 is a view structural diagram of one of the vibration damping elastic blocks according to an embodiment of the present invention;

FIG. 10 is a view illustrating another perspective structure of a vibration damping elastic block according to an embodiment of the present invention;

FIG. 11 is a further perspective view of a vibration damping elastomer block in accordance with an embodiment of the present invention;

FIG. 12 is a structural diagram of a positioning element fixedly mounted on a connecting shaft according to an embodiment of the present invention;

FIG. 13 is a view of a protective shell according to an embodiment of the invention;

FIG. 14 is a schematic view of another embodiment of a protective shell;

fig. 15 is a view of a protective shell according to an embodiment of the invention.

10. A mounting seat; 11. a seat plate; 111. a first recess; 12. enclosing plates; 121. an observation window; 122. a groove; 123. a material taking port; 13. a first mounting member; 21. an outer housing; 211. a first split shell; 2111. a fourth recess; 212. a second split shell; 2121. a second shaft hole; 2122. a fifth recess; 213. a flange; 2131. A second arc-shaped concave surface; 214. a second recess; 22. a first bearing; 23. a second bearing; 24. a magnet; 25. a first seal ring; 26. a second seal ring; 30. a stator assembly; 31. a positioning sleeve; 32. injecting a plastic coil; 40. a vibration damping elastic block; 41. a first bump; 42. a second bump; 43. a third recess; 44. a hollow-out area; 50. a limiting member; 60. a connecting shaft; 61. a first step; 62. a second step; 63. a third step; 64. a fourth step; 65. a fifth step; 66. a sixth step; 70. a positioning member; 71. positioning the main board; 711. a first shaft hole; 712. a first mounting hole; 72. positioning a support plate; 73. a damping buffer layer; 74. A vibration damping shaft sleeve; 741. an arc-shaped section; 742. a straight section; 81. an axle; 82. a body structure; 91. a first stopper plate; 92. a second stopper plate; 93. a locking member; 94. a lock washer; 95. a protective shell; 951. a first housing; 952. a second housing; 9521. a second mounting hole; 953. a third housing; 96. a second mount; 97. a collar.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention can be embodied in many different forms than those herein described and one skilled in the art can make similar modifications without departing from the spirit of the invention and it is therefore not limited to the specific embodiments disclosed below.

Referring to fig. 1 to 4, fig. 1 is a schematic structural view illustrating a shaft-end power generating device of an embodiment of the invention being mounted on an end portion of an axle 81, fig. 2 is a structural view illustrating a positioning member 70 of an embodiment of the invention, fig. 3 is a structural view illustrating another perspective view of the positioning member 70 of an embodiment of the invention, and fig. 4 is a structural view illustrating another perspective view of the positioning member 70 of an embodiment of the invention. In an embodiment of the positioning element 70, the positioning element 70 includes a positioning main plate 71 and at least one positioning support plate 72 fixedly connected to the positioning main plate 71. The positioning main plate 71 is provided with a first shaft hole 711 for the shaft end power generation device to pass through the connecting shaft 60, and the positioning main plate 71 is fixedly sleeved on the connecting shaft 60 through the first shaft hole 711. The locating bracket 72 is adapted for positive engagement with the vehicle body structure 82.

Above-mentioned setting element 70, because location mainboard 71 fixes the cover through first shaft hole 711 on connecting axle 60, location mainboard 71 is fixed continuous with location extension board 72, location extension board 72 and the spacing cooperation of major structure 82 of vehicle, connecting axle 60 and the indirect spacing cooperation of major structure 82 like this, major structure 82 can avoid connecting axle 60 to rotate through setting element 70, realize that connecting axle 60 is fixed for major structure 82 promptly, thereby can guarantee the stable work of axle head power generation facility, be favorable to realizing continuously stably supplying power for the consumer on the railway vehicle.

It should be noted that, in infringement comparison, the "positioning strip 72" may be a part of the "positioning main plate 71", that is, the "positioning strip 72" and the "other part of the positioning main plate 71" are integrally formed; or a separate member that can be separated from the other parts of the positioning main plate 71, that is, the positioning support plate 72 can be manufactured separately and then combined with the other parts of the positioning main plate 71 into a whole. As shown in fig. 2 to 4, in one embodiment, the "positioning support plate 72" is a part of the "positioning main plate 71" which is integrally formed.

Referring to fig. 1, 4 and 5, fig. 5 is a schematic structural diagram of a damping sleeve 74 according to an embodiment of the present invention. Further, a damping bushing 74 is disposed in the first shaft hole 711, and the damping bushing 74 is sleeved on the connecting shaft 60. Therefore, the positioning main plate 71 is sleeved on the connecting shaft 60 through the damping shaft sleeve 74, so that vibration and impact from the outside or a vehicle are buffered through the damping shaft sleeve 74, the stability of the shaft end power generation device is improved, and the service life of the shaft end power generation device is prolonged.

Referring to fig. 1, 4 and 5, the outer wall surface of the damper bushing 74 is fitted to the inner wall surface of the first shaft hole 711, and the inner wall surface of the damper bushing 74 is fitted to the outer wall surface of the connecting shaft 60. The outer wall surface of the damper boss 74 is a non-circular surface, and the inner wall surface of the damper boss 74 is a non-circular surface. Thus, the damping bushing 74 cannot rotate relative to the connecting shaft 60, the damping bushing 74 is firmly combined with the connecting shaft 60, the damping bushing 74 cannot rotate relative to the positioning main plate 71, the damping bushing 74 is firmly combined with the positioning main plate 71, and the connecting shaft 60 and the positioning main plate 71 are fixed together. The term "non-circular surface" means not a circular surface, but any other shape may be used, for example, an oval shape, a square shape, a trapezoidal shape, a triangular shape, etc., and is not limited to these and is not intended to be listed.

Referring to fig. 1, 4 and 5, further, the damping sleeve 74 includes an arc section 741 and a straight section 742. Two ends of the straight section 742 are respectively and correspondingly connected with two ends of the arc-shaped section 741. The damping sleeve 74 is an elastic rubber sleeve, an elastic plastic sleeve or an elastic silicone sleeve.

Optionally, the positioning member 70 is made of, for example, a high-new engineering plastic PPE, which reduces weight while being waterproof, fireproof, and corrosion-resistant. Of course, the positioning member 70 may be made of other materials, and is not limited herein.

Referring to fig. 1-4, in one embodiment, the ends of the positioning plate 72 are adapted to engage the underside of a load-bearing saddle of the body structure 82. Thus, the end of the positioning support plate 72 is in contact with and matched with the bottom surface of the bearing saddle, so that the bearing saddle has a limiting effect on the positioning support plate 72, and the positioning support plate 72 is prevented from rotating along with the mounting seat 10.

Referring to fig. 1 to 4, further, a vibration damping buffer layer 73 is disposed on an end surface of the positioning support plate 72 away from the positioning main plate 71, and the positioning support plate 72 is configured to be in contact with the bottom surface of the bearing saddle through the vibration damping buffer layer 73. Specifically, the vibration damping cushion layer 73 is made of, for example, vibration damping brushes, rubber, or other elastic materials. Thus, the vibration damping buffer layer 73 can buffer vibration and impact from the outside or the vehicle, so that the installation stability of the shaft end power generation device on the end part of the axle 81 can be ensured, and continuous and stable power supply of electric equipment on the railway vehicle is facilitated.

Referring to fig. 3, further, the thickness d of the positioning support plate 72 gradually decreases from the end connected to the positioning main plate 71 to the end where the vibration damping buffer layer 73 is located. In this manner, the positioning plate 72 is provided with a ramp structure to increase the attachment strength of the support portion of the positioning member 70.

In one embodiment, there are two positioning brackets 72, and the two positioning brackets 72 are symmetrically arranged with respect to the axial direction of the connecting shaft 60. In this manner, the contact stability of the positioning strip 72 with the main structure 82 can be ensured. It should be noted that the number of the positioning brackets 72 may be one, three, or other numbers, which are not limited herein.

Referring to fig. 1, 6 and 7, fig. 6 is a schematic structural diagram of a shaft end power generation device according to an embodiment of the present invention, and fig. 7 is an enlarged schematic structural diagram of fig. 6 at a. In one embodiment, the shaft end power generation device comprises a positioning member 70, and further comprises a mounting seat 10, a rotor assembly, a stator assembly 30, a damping elastic block 40, a limiting member 50 and a connecting shaft 60. The mounting seat 10 is used for fixing the end of an axle 81 installed on a vehicle, the mounting seat 10 comprises a seat plate 11 and a surrounding plate 12 arranged around the circumferential direction of the seat plate 11, and the surrounding plate 12 and the seat plate 11 surround to form a cavity. The rotor assembly comprises an outer housing 21, the stator assembly 30 being disposed inside the outer housing 21, the outer housing 21 being disposed in the chamber. The damping elastic block 40 is arranged in the cavity, the outer shell 21 is connected with the seat plate 11 through the damping elastic block 40, and the limiting piece 50 is arranged on the coaming 12 and is abutted against the outer shell 21. One end of the connecting shaft 60 penetrates through the outer shell 21 and extends into the outer shell 21, the other end of the connecting shaft 60 is used for being in limit fit with a main structure 82 of a vehicle through a positioning piece 70, the stator assembly 30 is fixedly arranged on the connecting shaft 60, and the outer shell 21 is rotatably arranged on the connecting shaft 60 through a bearing.

In the shaft end power generation device, the mounting seat 10 is fixedly mounted at the end of the axle 81 of the vehicle, and the connecting shaft 60 is in limit fit with the main structure 82 of the vehicle through the positioning piece 70, so that during the running process of the vehicle, the end of the axle 81 rotates to synchronously drive the rotor assembly to rotate, the stator assembly 30 is fixed on the connecting shaft 60 and keeps relatively static with the main structure 82 of the vehicle, and thus the rotor assembly rotates relative to the stator assembly 30, and power can be generated by utilizing kinetic energy generated by the rotating motion of the axle 81 during the running of the railway vehicle. In addition, because the location mainboard 71 is fixed cover dress on connecting axle 60 through first shaft hole 711, location mainboard 71 is fixed continuous with location extension board 72, location extension board 72 and the spacing cooperation of major structure 82 of vehicle, connecting axle 60 and the indirect spacing cooperation of major structure 82 like this, major structure 82 can avoid connecting axle 60 to rotate through setting element 70, realize that connecting axle 60 is fixed for major structure 82 promptly, thereby can guarantee the stable work of axle head power generation facility, be favorable to realizing continuously stably supplying power for the consumer on the rail vehicle.

Referring to fig. 1, 6 and 7, further, the damping elastic block 40 is disposed between the seat plate 11 and the outer housing 21 in a pre-tensioned compressed state. So on the one hand, locating part 50 and damping elastic block 40 can avoid causing the damage for axle head power generation facility in the vehicle vibration process, on the other hand, can make the rotor subassembly remain relatively static with mount pad 10 throughout, can avoid rotor subassembly axial rebound promptly, make mount pad 10 and rotor subassembly fixed together, mount pad 10 and rotor subassembly keep setting up with the axle center, avoid the adverse effect that axle head power generation facility operation in-process brought because of the installation is eccentric, the installation stability on axletree 81 tip is better, be favorable to realizing the continuous stable power supply of the consumer on the railway vehicle.

Referring to fig. 1, 6 and 7, further, the pre-tightening force of the damping elastic block 40 is 300N to 1500N. So, can realize that the rotor subassembly is installed comparatively steadily on mount pad 10, can guarantee that mount pad 10 and rotor subassembly keep setting up with the axle center, can avoid the axle head power generation facility operation in-process because of the eccentric adverse effect that brings of installation. In addition, it should be noted that the precompression rate of the damping elastic block 40 is generally controlled to be 5% to 25%, and when the damping elastic block 40 has a certain amount of precompression rate after being installed between the seat plate 11 and the outer housing 21, the damping elastic block 40 generates a pre-tightening force accordingly, and the pre-tightening force is in direct proportion to the precompression rate.

Referring to fig. 6, 9 to 11, fig. 9 shows a view angle structural view of a vibration damping elastic block 40 according to an embodiment of the present invention, fig. 10 shows another view angle structural view of the vibration damping elastic block 40 according to an embodiment of the present invention, and fig. 11 shows another view angle structural view of the vibration damping elastic block 40 according to an embodiment of the present invention. Further, one end surface of the vibration-damping elastic block 40 is provided with a first protrusion 41, the surface of the seat plate 11 is provided with a first recess 111 adapted to the first protrusion 41, and the first protrusion 41 is disposed in the first recess 111. In addition, a second protrusion 42 is disposed on the other end surface of the damping elastic block 40, a second recess 214 corresponding to the second protrusion 42 is disposed on the surface of the outer housing 21, and the second protrusion 42 is disposed in the second recess 214. Thus, the vibration damping elastic block 40 is stably arranged between the mounting seat 10 and the outer shell 21, the rotor assembly can be stably arranged on the mounting seat 10, the mounting seat 10 and the rotor assembly can be ensured to be coaxially arranged, and adverse effects caused by installation eccentricity in the operation process of the shaft end power generation device can be avoided. It should be noted that the number of the first protrusions 41 is not limited, and may be one, two, three or another number, and the number of the first recesses 111 corresponds to the number of the first protrusions 41. In addition, the number of the second bumps 42 is not limited, and may be one, two, three or other numbers.

Alternatively, the first protrusion 41 may be disposed on the surface of the seat plate 11, and the first recess 111 adapted to the first protrusion 41 may be disposed on one end surface of the damping elastic block 40, so as to achieve the effect of positioning and matching the damping elastic block 40 and the surface of the seat plate 11. Similarly, the second projection 42 may be provided on the surface of the outer housing 21, and the second recess 214 corresponding to the second projection 42 may be provided on the other end surface of the damper elastic block 40, thereby achieving the effect of positioning and fitting the damper elastic block 40 to the surface of the outer housing 21.

In one embodiment, the number of the first bumps 41 is several, and the several first bumps 41 are uniformly distributed on one end surface of the vibration damping elastic block 40 in a surrounding manner by taking the axis of the vibration damping elastic block 40 as a center; the number of the second protrusions 42 is several, and the several second protrusions 42 are uniformly distributed on the other end surface of the vibration damping elastic block 40 in a surrounding manner by taking the axis of the vibration damping elastic block 40 as the center. Therefore, in the assembling process of the shaft end power generation device, the outer shell 21 can stably push the compression vibration damping elastic block 40 along the axial direction, the axial direction of the outer shell 21 is not easy to deviate from the axial direction of the mounting seat 10, and the outer shell 21 and the mounting seat 10 are ensured to be coaxially arranged.

In one embodiment, the shock absorbing elastomeric blocks 40 are wear resistant rubber blocks. Alternatively, the middle portion of the end surface of the damper elastic block 40 facing the outer housing 21 is provided with a third recess 43, and the outer housing 21 is provided with a first projection adapted to the third recess 43, the first projection being provided in the third recess 43. So, when adopting wear-resisting rubber piece, the heat conductivity is extremely low, plays thermal-insulated effect, avoids the heat that the rotor subassembly produced to pass through mount pad 10 and produces the hotbox phenomenon on transmitting axletree 81. It is understood that the damping elastic block 40 may also be a silicon rubber block, a plastic block, or the like elastic block, which is not limited herein. Further, since the first projection of the outer case 21 is provided in the third recess 43, the outer case 21 and the damper elastic block 40 are firmly bonded together.

In one embodiment, the mounting base 10 is fixedly mounted to the end of the axle 81 by a first mounting member 13. Alternatively, the mount 10 is fixedly bonded to the end of the axle 81. Alternatively, the mounting base 10 is fixed to the end of the axle 81 by snap-fitting. Alternatively, the mount 10 is fixed by welding to the end of the axle 81. Specifically, the first mounting member 13 may be, for example, a bolt, a pin, a rivet, a screw, and the like, which are not limited herein.

Referring to fig. 8 to 10, fig. 8 illustrates another perspective structural diagram of the shaft end power generation device according to an embodiment of the invention. Further, the first mounting member 13 is a shaft end bolt, and the shaft end bolt is inserted through the seat plate 11 and fixedly mounted on the end surface of the end portion of the axle 81. In addition, the number of the first mounting pieces 13 is several, and the several first mounting pieces 13 are wound around the seat plate 11 at equal intervals with the axis of the seat plate 11 as the center. In addition, the damping elastic block 40 is provided with a hollow-out area 44, the shaft end bolt is positioned in the hollow-out area 44, and the coaming 12 is provided with an observation window 121 communicated with the hollow-out area 44. Therefore, on one hand, the mounting seat 10 is fixed on the end surface of the end part of the axle 81 through a plurality of axle end bolts, so that the mounting seat 10 is stably arranged on the end surface of the end part of the axle 81; on the other hand, as the vibration-damping elastic block 40 is provided with the hollow-out area 44, when the vibration-damping elastic block is arranged in the mounting seat 10, the shaft end bolt is just positioned in the hollow-out area 44, so that the installation of the vibration-damping elastic block 40 on the mounting seat 10 is not influenced, and the installation effect of the vibration-damping elastic block 40 is more stable; in addition, because the enclosing plate 12 is provided with the observation window 121, the position of the observation window 121 is just correspondingly communicated with the position of the hollow-out area 44, so that whether the shaft end bolt at the position of the hollow-out area 44 is loosened or not can be observed, and whether the shaft end bolt is loosened or not can be judged by touching the shaft end bolt by hand.

Referring to fig. 1, 6 and 7, in one embodiment, the rotor assembly further includes a magnet 24 fixedly disposed on the housing 21. The stator assembly 30 includes a positioning sleeve 31 and an injection molding coil 32, the positioning sleeve 31 is fixedly disposed on the connecting shaft 60, and the injection molding coil 32 is disposed on the positioning sleeve 31. Thus, when the stator assembly 30 and the rotor stop assembly rotate with each other, the kinetic energy generated by the rotation of the axle 81 can be utilized to generate power.

It will be appreciated that the magnets 24 and the injection molded coils 32 may be arranged in a manner that is inter-modulated, and that the kinetic energy generated by the rotational motion of the axle 81 may be used to generate electricity.

Referring to fig. 1, 6 and 7, in one embodiment, the outer housing 21 includes a first split housing 211 and a second split housing 212 that are joined together. The first split case 211 abuts against the damping elastic block 40, and the second split case 212 abuts against the stopper 50. In this way, the first split case 211 and the second split case 212 are opened, the magnet 24 can be attached to the inner wall of the outer case 21, and the stator assembly 30 can be attached to the inside of the outer case 21. In addition, since the first split case 211 is in close interference fit with the damping elastic block 40, the position of the second split case 212 in the axial direction is restricted by the stopper 50, and the first split case 211 is firmly combined with the second split case 212 by the pre-load force of the damping elastic block 40 itself. Specifically, the first split case 211 is provided with a plurality of magnets 24 at intervals around the axis thereof, and the second split case 212 is provided with a plurality of magnets 24 at intervals around the axis thereof.

Referring to fig. 1, 6 and 7, in one embodiment, a first sealing ring 25 is disposed at a joint portion of the first split case 211 and the second split case 212. The second split housing 212 is provided with a second shaft hole 2121 for the connection shaft 60 to pass through, a second sealing ring 26 is provided on the hole wall of the second shaft hole 2121, and the second sealing ring 26 is sleeved on the connection shaft 60. Therefore, the first sealing ring 25 and the second sealing ring 26 can ensure the sealing performance of the outer shell 21, and can prevent impurities such as dust, rainwater and the like from entering the outer shell 21, so that the service life of the shaft section power generation device can be prolonged.

Referring to fig. 1, 6 and 7, in one embodiment, the bearing includes a first bearing 22 and a second bearing 23. A fourth recess 2111 corresponding to the first bearing 22 is provided in the middle of the inner wall surface of the first split case 211, and a fifth recess 2122 corresponding to the second bearing 23 is provided in the middle of the inner wall surface of the second split case 212. The first bearing 22 is accommodated in the fourth recess 2111, and the second bearing 23 is accommodated in the fifth recess 2122. In this way, the outer housing 21 is rotatably disposed on the connecting shaft 60 through the first bearing 22 and the second bearing 23, and the rotating effect on the connecting shaft 60 is relatively stable.

Specifically, the fourth concave portion 2111 is formed by the middle portion of the first split case 211 protruding toward the damping elastic block 40, and the fifth concave portion 2122 is formed by the middle portion of the second split case 212 protruding toward the direction away from the damping elastic block 40, so that the weight of the first and second split cases 211 and 212 can be reduced.

Referring to fig. 1, 6 and 7, in one embodiment, a flange 213 is circumferentially disposed around the outer wall of the outer casing 21, and the flange 213 is in interference fit with the inner wall of the shroud 12. In this way, the flange 213 contacts with the inner wall of the surrounding plate 12 to position the outer casing 21, so that the axis of the outer casing 21 is in the same direction as the axis of the mounting seat 10, and the outer casing 21 can be stably mounted in the mounting seat 10.

Referring to fig. 1, 6 and 7, in one embodiment, the position-limiting member 50 is a retaining ring, a groove 122 is formed around the inner wall of the enclosure 12, the retaining ring is disposed in the groove 122, and a portion of the retaining ring protrudes out of the groove 122 and abuts against the flange 213. Thus, the retainer ring is abutted against and fixed to the flange 213, thereby limiting the movement of the outer housing 21 along the axial direction of the mounting seat 10. Specifically, the retainer ring is a steel wire retainer ring, an iron wire ring, a copper wire ring, or the like, and is not limited herein.

Referring to fig. 1, 6 and 7, the outer shell 21 illustrated in fig. 6 is not yet tightly pressed against the elastic damping block 40, and thus the second curved concave surface 2131 is not moved to a position co-circular with the first curved concave surface. In one embodiment, the axial cross-section of the retainer ring is a circular or elliptical surface. The inner wall surface of the groove 122 is a first arc-shaped concave surface and is adapted to the wall surface of the retainer ring. The part of the flange 213, which is in contact with the retainer ring, is provided with a second arc-shaped concave surface 2131, and the second arc-shaped concave surface 2131 is adapted to the wall surface of the retainer ring. Thus, the retainer ring is stably seated in the groove 122 and abuts against the flange 213 of the outer housing 21, so that the outer housing 21, the vibration damping elastic block 40 and the mounting seat 10 are stably fixed together. In addition, the retainer ring can be conveniently drawn out of the groove 122 through the material taking opening 123.

In a specific embodiment, the first curved concave surface can be, for example, a 180 degree curved concave surface with a radius of 2mm, the second curved concave surface 2131 can be, for example, a 90 degree curved concave surface with a radius of 2mm, and the first curved concave surface and the second curved concave surface 2131 can be used for installing a retainer ring with a radius of 2mm in axial cross section when they are aligned together in a corresponding split manner.

Referring to fig. 7 and 8, in one embodiment, the enclosing plate 12 is provided with a material taking opening 123, and the material taking opening 123 is communicated with the groove 122. The retainer ring is provided with a notch section. Because the retaining ring is equipped with the breach section, the retaining ring is not for the closed structure of annular like this, like this alright outwards take out the retaining ring from recess 122 through getting material mouth 123, alright like this with carry out dismouting operation to axle head power generation facility.

Furthermore, the number of the material taking ports 123 is several, and the several material taking ports 123 are wound around the enclosing plate 12 at intervals. Therefore, according to practical situations, the limiting member 50 can be selectively taken out of the groove 122 through one of the material taking openings 123, and the operation of taking out the limiting member 50 is convenient. Specifically, the number of the material taking ports 123 is three, and the three material taking ports 123 are provided around the shroud 12 at equal intervals. Of course, the number of the material taking ports 123 may be one, two, four or other number, which is not limited herein.

It should be noted that the limiting member 50 is not limited to the above-mentioned retaining ring, and is also not limited to the retaining ring being disposed in the groove 122, and may also be other structural members that can be used for limiting the outer shell 21, for example, a plurality of insertion holes may be disposed on the surrounding plate 12, and the limiting member 50 movably disposed in the insertion holes, and whether the limiting member 50 limits the outer shell 21 is achieved by changing the position of the limiting member 50.

Referring to fig. 12, fig. 12 is a structural diagram illustrating that the positioning element 70 is fixedly mounted on the connecting shaft 60 according to an embodiment of the present invention. Further, the shaft end generating device further comprises a first stop plate 91, a second stop plate 92 and a locking piece 93. The connecting shaft 60 is provided with a first step 61, a second step 62 and a third step 63. The first stop plate 91 is fixedly arranged on the second step 62, one side surface of the first stop plate 91 is abutted against the first step 61, the other side surface of the first stop plate 91 is abutted against one side surface of the positioning main plate 71, the damping shaft sleeve 74 is sleeved and fixed on the second step 62, the second stop plate 92 is sleeved and fixed on the third step 63, the other side surfaces of the second step 62 and the positioning main plate 71 are all abutted against one side surface of the second stop plate 92, the other side surface of the second stop plate 92 is abutted against the locking piece 93, and the locking piece 93 is fixedly arranged on the third step 63.

Referring to fig. 12, in an embodiment, the locking member 93 is a locking nut, the locking nut is sleeved and fixed on the connecting shaft 60, and the shaft end power generation device further includes an anti-loosening washer 94 disposed between the second stop plate 92 and the locking nut. It should be noted that the locking member 93 is not limited to a locking nut, and may be other members that can be used to fix the position of the second stopper plate 92 on the connecting shaft 60.

Referring to fig. 1, 8 and 12, the connecting shaft 60 is further provided with a fourth step 64 and a fifth step 65. The fourth step 64, the fifth step 65, the first step 61, the second step 62, and the third step 63 are sequentially arranged along the axial direction of the connecting shaft 60. The first bearing 22 is sleeved on the fourth step 64, the positioning sleeve 31 is sleeved on the fifth step 65, and the second bearing 23 is sleeved on the first step 61. In this way, the first bearing 22, the positioning sleeve 31, and the second bearing 23 can be prevented from moving in the axial direction of the connecting shaft 60. Further, the connecting shaft 60 is further provided with a sixth step 66 located between the fifth step 65 and the first step 61, the step surfaces of the fourth step 64, the fifth step 65 and the sixth step 66 are gradually far away from the axis of the connecting shaft 60, and the step surfaces of the sixth step 66, the first step 61, the second step 62 and the third step 63 are gradually close to the axis of the connecting shaft 60. One side surface of the sixth step 66 is abutted against the positioning sleeve 31, and the other side surface of the sixth step 66 is abutted against and matched with the second bearing 23.

Referring to fig. 1, 6, and 13 to 15, fig. 13 shows a structure diagram of a protective shell 95 according to an embodiment of the present invention from one viewing angle, fig. 14 shows a structure diagram of a protective shell 95 according to an embodiment of the present invention from another viewing angle, and fig. 15 shows a structure diagram of a protective shell 95 according to an embodiment of the present invention from another viewing angle. In one embodiment, the shaft end power generation device further includes a protective shell 95. The protective shell 95 covers the positioning member 70 and the outer shell 21. Thus, the protective shell 95 protects both the positioning member 70 and the outer housing 21.

It should be noted that the protective shell 95 of this embodiment has certain elasticity while having certain intensity, can bear certain impact, can produce deformation when being hit by a foreign object simultaneously again to preliminary buffering comes from colliding with and assaults by foreign objects such as external flying stones.

Referring to fig. 1, 6, and 13 to 15, the protective shell 95 further includes a first housing 951 and a second housing 952 communicating with the first housing 951, the first housing 951 is covered outside the outer shell 21, and the second housing 952 is covered outside the positioning member 70.

Referring to fig. 1, 6, and 13 to 15, the protective housing 95 further includes a third housing 953 in communication with the first housing 951. The third housing 953 is formed by a face plate of the first housing 951 being outwardly convex in a direction away from the mounting seat 10, and the third housing 953 is housed outside an end portion of the connecting shaft 60.

Referring to fig. 1, 6, and 13 to 15, further, a panel of the second casing 952 abuts against the positioning main plate 71, and an escape opening for passing an end of the connecting shaft 60 is formed in the panel of the second casing 952.

Further, the faceplate of the second cover 952 is detachably connected to the positioning main plate 71 by the second mounting member 96. In this embodiment, the second mount 96 is a short terminal pin. The short terminal pin passes through the positioning main plate 71 and the panel of the second cover shell 952 and then is connected with the collar 97. Alternatively, the second mounting element 96 may also be a bolt, screw, pin, etc., without limitation. Correspondingly, a first mounting hole 712 corresponding to the second mounting member 96 is formed in the positioning main board 71, a second mounting hole 9521 corresponding to the first mounting hole 712 is formed in a panel of the second casing 952, and the second mounting member 96 passes through the first mounting hole 712 and the second mounting hole 9521 to fixedly connect the positioning main board 71 and the panel of the second casing 952 together.

Referring to fig. 1 again, in one embodiment, a railway vehicle comprises the axle end power generation device of any one of the above embodiments, and further comprises a main body structure 82 and an axle 81 rotatably disposed on the main body structure 82. The mounting seat 10 is fixedly mounted on the end of the axle 81, and the other end of the connecting shaft 60 is in limit fit with the main structure 82 through the positioning member 70.

In the railway vehicle, the mounting seat 10 is fixedly mounted at the end of the axle 81 of the vehicle, and the connecting shaft 60 is in limit fit with the main structure 82 of the vehicle through the positioning piece 70, so that in the running process of the vehicle, the end of the axle 81 rotates to synchronously drive the rotor assembly to rotate, the stator assembly 30 is fixed on the connecting shaft 60 and keeps relatively static with the main structure 82 of the vehicle, that is, the rotor assembly rotates relative to the stator assembly 30, and thus, the kinetic energy generated by the rotating motion of the axle 81 of the railway vehicle in the running process can be utilized to generate electricity. Wherein, the locating part 50 sets up on bounding wall 12 and contradicts with shell body 21 so that damping elastic block 40 is in between bedplate 11 and shell body 21 with the compressing state in advance, so on the one hand, locating part 50 and damping elastic block 40 can avoid the vehicle vibration in-process to cause the damage for axle head power generation facility, on the other hand, can make rotor assembly remain relative static with mount pad 10 throughout, can avoid rotor assembly axial rebound, make mount pad 10 and rotor assembly fixed together, mount pad 10 and rotor assembly keep setting up with the axle center, avoid the adverse effect that axle head power generation facility operation in-process brought because of the installation is eccentric, installation stability on axletree 81 tip is better, be favorable to realizing the consumer on being the rail vehicle and continuously stably supplies power.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting the invention.

Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected through the interior of two elements or through the interaction of two elements unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "below," and "beneath" a second feature may be directly or obliquely under the first feature or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. An axle end power generation device, characterized in that axle end power generation device includes:

the positioning piece comprises a positioning main board and at least one positioning support plate fixedly connected with the positioning main board; the positioning main board is provided with a first shaft hole for a connecting shaft of the shaft end power generation device to penetrate through, the positioning main board is fixedly sleeved on the connecting shaft through the first shaft hole, and the positioning support plate is used for limiting and matching with a main body structure of a vehicle;

the mounting seat is used for being fixedly arranged at the end part of a vehicle axle of a vehicle and comprises a seat plate and a surrounding plate arranged around the circumferential direction of the seat plate, and the surrounding plate and the seat plate are surrounded to form a cavity;

the rotor assembly comprises an outer shell, the stator assembly is arranged in the outer shell, and the outer shell is arranged in the cavity;

the damping elastic block is arranged in the cavity and is abutted against the first split shell, the outer shell is connected with the seat plate through the damping elastic block, the limiting piece is arranged on the coaming and is abutted against the second split shell, the limiting piece can limit the position of the second split shell in the axial direction, so that the damping elastic block is positioned between the seat plate and the outer shell in a pre-tightening compression state, and the damping elastic block can firmly combine the first split shell and the second split shell in the pre-tightening compression state;

the connecting shaft, connecting shaft one end runs through the shell body stretches into in the shell body, the connecting shaft other end pass through the setting element be used for with the spacing cooperation of the major structure of vehicle, stator module is fixed set up in on the connecting shaft, the shell body pass through the bearing rotationally set up in on the connecting shaft.

2. The shaft end power generation device of claim 1, wherein a damping bushing is disposed in the first shaft hole, and the damping bushing is sleeved on the connecting shaft.

3. The shaft-end power generation device of claim 2, wherein an outer wall surface of the damper bushing is adapted to an inner wall surface of the first shaft hole, and the inner wall surface of the damper bushing is adapted to an outer wall surface of the connecting shaft; the outer wall surface of the damping shaft sleeve is a non-circular surface, and the inner wall surface of the damping shaft sleeve is a non-circular surface.

4. The shaft end power generation device of claim 3, wherein the damping shaft sleeve comprises an arc-shaped section and a straight section, and two ends of the straight section are respectively and correspondingly connected with two ends of the arc-shaped section; the damping shaft sleeve is an elastic rubber sleeve, an elastic plastic sleeve or an elastic silica gel sleeve.

5. A shaft end power generation device as recited in claim 1, wherein the end of the locating support plate is configured for contacting engagement with a bottom surface of a load-bearing saddle of the host structure.

6. The shaft end power generation device of claim 5, wherein a vibration damping buffer layer is arranged on one end surface of the positioning support plate far away from the positioning main plate, and the positioning support plate is used for being in contact fit with the bottom surface of the bearing saddle through the vibration damping buffer layer.

7. The shaft end power generation device of claim 6, wherein the thickness of the positioning support plate is d, and the thickness d of the positioning support plate gradually decreases from the end connected with the positioning main plate to the end where the vibration reduction buffer layer is located.

8. The shaft-end power generation device of any one of claims 1 to 7, wherein the number of the positioning support plates is two, and the two positioning support plates are symmetrically arranged with respect to the axial center direction of the connecting shaft.

9. The shaft end power generation device of claim 1, wherein one end surface of the damping elastic block is provided with a first bump, a surface of the seat plate is provided with a first recess adapted to the first bump, and the first bump is arranged in the first recess.

10. A railway vehicle, characterized in that the railway vehicle comprises the shaft end power generation device as claimed in any one of claims 1 to 9, and further comprises a main structure and a shaft rotatably arranged on the main structure, the mounting seat is fixedly arranged at the end part of the shaft, and the other end of the connecting shaft is in limit fit with the main structure through the positioning piece.

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