CN110712530B - Linear motor hanging seat special for rail train - Google Patents
Linear motor hanging seat special for rail train Download PDFInfo
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- CN110712530B CN110712530B CN201910972123.4A CN201910972123A CN110712530B CN 110712530 B CN110712530 B CN 110712530B CN 201910972123 A CN201910972123 A CN 201910972123A CN 110712530 B CN110712530 B CN 110712530B
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- seat
- shaft seat
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- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 238000013016 damping Methods 0.000 claims abstract description 57
- 238000010521 absorption reaction Methods 0.000 claims abstract description 27
- 230000003139 buffering effect Effects 0.000 claims abstract description 6
- 230000035939 shock Effects 0.000 claims description 33
- 230000036544 posture Effects 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000004677 Nylon Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- 230000009102 absorption Effects 0.000 abstract description 18
- 239000000725 suspension Substances 0.000 abstract description 13
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000013598 vector Substances 0.000 abstract description 2
- 230000006698 induction Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000002360 explosive Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/03—Electric propulsion by linear motors
- B60L13/035—Suspension of the vehicle-borne motorparts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A linear motor hanging seat special for a rail train belongs to the field of motor hanging devices of rail vehicles and comprises a base, a central line straight rocker arm, a V-shaped rocker arm and three double-axial damping shaft seat mechanisms. According to the invention, through the symmetrical structure with triangle stability, the base of the special linear motor hanging seat is hung on two axles of the same bogie in an axle suspension manner, and the three double-axial damping axle seat mechanisms A are respectively positioned at the corner points of the stable triangle, so that vibration reduction, buffering and absorption of all vibration vectors on the XYZ three-axis degrees of freedom are realized through a plurality of groups of different-surface vertical axle seats with elastic energy absorption and vibration reduction functions in the double-axial damping axle seat mechanism A, and the parameter range of the air gap value between the linear motor hung by the special linear motor hanging seat and a sensing plate on a special rail can completely meet the optimal design requirement.
Description
Technical Field
The invention belongs to the field of motor suspension devices of railway vehicles, and particularly relates to a special linear motor hanging seat for a railway train.
Background
The rail train based on the linear motor as the driving device changes the running power of the vehicle from rotary adhesion driving to linear driving of the motor, improves the climbing capacity of the rail vehicle, and greatly improves the adaptability of the vehicle to the terrain. The special rail of the linear motor of the train is provided with the induction plate, and a small enough air gap is required to be kept between the linear motor and the induction plate so as to improve the driving force of the linear motor. The rail vehicle type not only inherits the technical advantages of the conventional steel wheel-steel rail track traffic system, but also can avoid the technical weaknesses of the traffic systems such as rubber wheel monorail and the like, so that the rail vehicle type can be widely applied to various urban rail traffic lines with complex terrains.
The existing linear motor is connected with a bogie frame of a rail train through a hanging seat type hanging device, and the main connection mode comprises the following two modes:
The axle suspension motor is suspended on the axle of the train directly through the fixed suspension seat, but the suspension structure can restrict the motion freedom degree of the bogie wheel to the axle, the vibration of the framework or the axle directly acts on the linear motor in a rigid transmission mode, and the vibration among the three is interfered with each other, so that the service lives of the linear motor, the framework and the axle are influenced.
In another linear motor suspension structure with elastic damping function, the linear motor is suspended on the frame beam through a series of springs, but because the distance between the frame beam and the special rail of the linear motor is larger, the series of springs with larger length values are needed to hang down from the frame beam for a long enough distance so that the air gap value between the linear motor suspended by the series of springs and the induction plate on the special rail is within the parameter range specified by design. However, the primary spring with a larger length value meets the length requirement, and simultaneously, the stiffness parameter of the spring resisting radial swing of the primary spring is correspondingly weakened, so that the linear motor suspended by the primary spring has larger swing freedom, the swing and vibration amplitude of the linear motor are increased, the stability and reliability of the linear motor are reduced, the maintenance period is shortened, the inspection frequency is improved, the maintenance cost is increased, and the running safety of a train is negatively influenced.
Disclosure of Invention
In order to solve the problem that the existing axle suspension motor suspension mode of directly suspending the linear motor on the axle of the train can restrict the motion freedom degree of the bogie wheel on the axle, the vibration of the framework or the axle directly acts on the linear motor in a rigid transmission mode, so that the service lives of the three are influenced; the invention provides a special linear motor hanging seat for a track train, which is characterized in that a linear motor is hung on a framework beam through a series of springs, and the linear motor can only hang down from the framework beam for a long enough distance through the series of springs with larger length values, so that the air gap value between the linear motor hung by the series of springs and a special rail upper induction plate of the linear motor is within a designed and specified parameter range, but the rigidity parameter of the springs against radial swing is weakened by the series of springs with larger length values, so that the linear motor hung by the series of springs has larger swing freedom degree, thereby increasing the swing and vibration amplitude of the linear motor, reducing the stability and reliability of the installation of the linear motor, further bringing about shortening of maintenance period and improvement of inspection frequency, increasing maintenance cost and negatively affecting the safety of the train operation.
The technical scheme adopted for solving the technical problems is as follows:
The linear motor lifting seat special for the rail train comprises a base, a central line straight rocker arm, a V-shaped rocker arm and three double-axial shock absorption shaft seat mechanisms, wherein the central line straight rocker arm and the V-shaped rocker arm are uniformly distributed on the longitudinal central line of the base, one end of the central line straight rocker arm is rotationally connected with the middle part of the base through a vertical shaft seat, and the other end of the central line straight rocker arm is fixedly connected with a horizontal elastic shaft component on one double-axial shock absorption shaft seat mechanism; the V-shaped top point of the V-shaped rocker arm is rotationally connected with the middle part of the base through a vertical shaft seat; the two bifurcated rocker arms of the V shape on the V-shaped rocker arm are arranged in mirror symmetry by taking the longitudinal center line of the base as a symmetrical axis, and the end part of each bifurcated rocker arm is fixedly connected with the mandrel of a horizontal elastic shaft part on a corresponding double-axial shock absorption shaft seat mechanism;
The three double-axial shock-absorbing shaft seat mechanisms are arranged in an isosceles triangle by taking the longitudinal center line of the base as a symmetrical axis, and the lower end of each double-axial shock-absorbing shaft seat mechanism is rotationally connected with the base;
the double-axial damping shaft seat mechanism is used for buffering vertical vibration between the axle and the base, limiting the axle to rotate only around an axis vertical to the end face of the base, and limiting the radius of the axle rotation and the rotatable angle range;
The biaxial shock-absorbing shaft seat mechanism is also used for reducing the vibration amplitude of two degrees of freedom between the biaxial shock-absorbing shaft seat mechanism and the central line straight rocker arm in a plane parallel to the end face of the base and limiting the vertical vibration amplitude of the biaxial shock-absorbing shaft seat mechanism and the central line straight rocker arm in a direction perpendicular to the end face of the base;
The bi-axial shock-absorbing axle seat mechanism is also used for reducing the vibration amplitude of two degrees of freedom between the bi-axial shock-absorbing axle seat mechanism and the V-shaped rocker arm in a plane parallel to the end face of the base, and limiting the vertical vibration amplitude of the bi-axial shock-absorbing axle seat mechanism and the V-shaped rocker arm in a direction perpendicular to the end face of the base.
The base comprises a rectangular base plate, a V-shaped rocker arm vertical shaft seat, a straight rocker arm vertical shaft seat and three horizontal shaft seats, and the V-shaped rocker arm vertical shaft seat, the straight rocker arm vertical shaft seat and the three horizontal shaft seats are fixedly connected to the upper end face of the rectangular base plate; the three horizontal shaft seats are arranged in an isosceles triangle shape, and the lower bottom central line of the isosceles triangle is overlapped with the short side central line of the rectangular base plate; the geometric center of the upper end face of the rectangular base plate is set as an O point, the central line of the long side of the rectangle is set as a Y axis, the central line of the short side of the rectangle is set as an X axis, and an XYZ plane rectangular coordinate system is established by taking the direction of the vertex angle of the isosceles triangle formed by the three horizontal shaft seats as the positive direction of the X axis, so that: the V-shaped rocker arm vertical shaft seat and the straight rocker arm vertical shaft seat are both positioned on the X axis and are in mirror symmetry with respect to the vertical Z axis; the geometric center of the isosceles triangle formed by the three horizontal shaft seats coincides with the geometric center O point of the upper end surface of the rectangular base plate; two horizontal shaft seats positioned on the bottom side of an isosceles triangle formed by the three horizontal shaft seats are in mirror symmetry with respect to the X-axis; and the distance D from two horizontal shaft seats positioned on the bottom edge of the isosceles triangle formed by the three horizontal shaft seats to the geometric center O point is equal to the distance D from the rest horizontal shaft seats to the geometric center O point.
The central line straight rocker arm comprises an integrally formed linear rocker arm rotating shaft sleeve ring seat, a linear rocker arm inclined rod and a linear rocker arm node core shaft seat; the axis of the linear rocker arm rotating shaft sleeve ring seat is perpendicular to the different surface of the axis of the linear rocker arm node core shaft seat, and the axis of the linear rocker arm rotating shaft sleeve ring seat and the axis of the linear rocker arm node core shaft seat are connected with each other through a linear rocker arm inclined rod; the linear rocker arm rotating shaft sleeve ring seat is rotationally connected with the linear rocker arm vertical shaft seat;
The V-shaped rocker arm comprises an integrally formed vertex rotating shaft seat, two bifurcation rocker arms and two V-shaped rocker arm node core shaft seats, the overlooking structure of the V-shaped rocker arm is letter V-shaped, and the vertex rotating shaft seat is positioned at the sharp corner position at the bottom of the V-shaped rocker arm and is rotationally connected with the V-shaped rocker arm vertical shaft seat; the lower ends of the two bifurcation rockers are connected with the vertex rotating shaft seat and are symmetrically arranged according to the postures of two hypotenuses of the letter V shape, and the other end of each bifurcation rocker is connected with a corresponding V-shaped rocker node mandrel seat; the axes of the two V-shaped rocker arm node core shaft seats are parallel to each other, and the axis of the vertex rotating shaft seat is perpendicular to the different surfaces of the axes of the V-shaped rocker arm node core shaft seats.
The V-shaped included angle beta of the two bifurcation rockers has a value range of 30 degrees to 120 degrees; the value range of the included angle alpha between the straight rocker arm inclined rod and the upper end surface of the rectangular base plate is 20-45 degrees; the side view contour line of the neutral straight rocker arm is mirror symmetrical with the side view contour line of the V-shaped rocker arm about the Z axis.
The double-axial damping shaft seat mechanism comprises a rubber node serving as a horizontal elastic shaft component, an eccentric wheel vehicle shaft sleeve seat, a vertical bearing hanging seat and a vertical damping pin mechanism, wherein the eccentric wheel vehicle shaft sleeve seat comprises a vehicle shaft sleeve, a bearing hanging seat connecting plate and a rubber node shaft sleeve which are integrally formed, the bearing hanging seat connecting plate is connected with the vehicle shaft sleeve along the tangential direction of the outer diameter of the vehicle shaft sleeve, a vertical connecting plate through hole is formed in the far end of the bearing hanging seat connecting plate, and the axis of the connecting plate through hole is perpendicular to the different plane of the axis of the vehicle shaft sleeve; the rubber node shaft sleeve is connected with the outer diameter of the vehicle shaft sleeve, and the axes of the rubber node shaft sleeve and the vehicle shaft sleeve are parallel; the rubber ring of the rubber node is fixedly connected to the middle section of the node mandrel bar; the rubber node shaft sleeve is in coaxial interference fit with the outer wall of the rubber ring of the rubber node; the straight rocker arm node mandrel base and the two V-shaped rocker arm node mandrel bases are respectively and coaxially fixedly connected with two ends of a node mandrel bar on a corresponding rubber node;
The vertical bearing hanging seat comprises a rectangular tubular hanging ring, a horizontal shaft seat at the bottom of the hanging ring and a vertical shaft seat hole at the top of the hanging ring, wherein the horizontal shaft seat at the bottom of the hanging ring is connected with the bottom of the rectangular tubular hanging ring and integrally formed, and the horizontal shaft seat at the bottom of the hanging ring is rotationally connected with the horizontal shaft seat; the vertical shaft seat hole at the top of the lifting ring is formed in the center of the upper end face of the rectangular pipe of the rectangular tubular lifting ring, the horizontal shaft seat at the bottom of the rectangular tubular lifting ring and the vertical shaft seat hole at the top of the lifting ring are integrally formed, and the axes of the rectangular tubular lifting ring, the horizontal shaft seat at the bottom of the lifting ring and the vertical shaft seat hole at the top of the lifting ring are straight lines with different vertical surfaces;
The bearing hanging seat connecting plate is axially inserted into the hanging ring of the rectangular tubular hanging ring, and a vertical shaft seat hole at the top of the hanging ring and a connecting plate through hole are coaxially and rotatably connected with the vertical damping pin mechanism;
The upper part of the vertical shaft seat hole at the top of the lifting ring is a top surface second-order counter bore with the depth of H1, the lower part of the vertical shaft seat hole at the top of the lifting ring is a bottom surface second-order counter bore with the depth of H1, and the top surface second-order counter bore and the bottom surface second-order counter bore are coaxial and share a central through hole.
The vertical damping pin mechanism comprises a bolt, an upper locking nut, two damping cone bottom gaskets, two damping cones, a bolt thread middle section sleeve, a nylon supporting pad for a bearing hanging seat connecting plate and a lower locking nut; the damping cone comprises a damping rubber sandwich layer, an upper conical concave annular cover and a lower conical convex annular table, wherein the damping rubber sandwich layer is of a bell-mouth-shaped inner and outer double conical surface thin-wall annular table structure; the upper end conical concave ring cover is of a funnel-shaped structure, the conical concave surface of the funnel shape is completely matched with the curved surface of the outer conical ring table of the shock-absorbing rubber sandwich layer, and the conical concave surface and the curved surface are fixedly connected; the top of the upper conical concave ring cover is a funnel rod-shaped straight cylinder; the outer side wall of the conical boss of the conical convex annular table at the lower end is completely matched with the concave surface of the conical annular table at the inner side of the shock-absorbing rubber sandwich layer, and the outer side wall and the concave surface are fixedly connected; the inner diameter L2 of the central hole of the conical convex ring table at the lower end is the same as the outer diameter of the sleeve at the middle section of the bolt thread;
The bolt sequentially passes through the upper locking nut, a damping cone bottom surface gasket, a damping cone in a flip-chip posture, a damping cone in another normal installation posture, a bolt thread middle section sleeve, another damping cone bottom surface gasket, a connecting plate through hole, a nylon supporting pad for a bearing hanging seat connecting plate and the lower locking nut; the shock-absorbing cone in the inverted posture, the through hole of the connecting plate and the shock-absorbing cone in the normal posture are sequentially and slidably connected with the outer diameter of the middle sleeve of the bolt thread; the upper end locking nut is in threaded connection with the upper section of the bolt, and the lower end locking nut is in threaded connection with the lower section of the bolt penetrating out from the lower part of the through hole of the connecting plate.
The inner diameter value of the second-order counter bore on the top surface and the inner diameter value of the second-order counter bore on the bottom surface are the same as the outer diameter of the funnel-shaped straight barrel, the height value of the funnel-shaped straight barrel is H2, and H2 = H1; the outer diameter of the upper bottom of the conical ring table of the shock absorption rubber sandwich layer is larger than the outer diameter L1 of the funnel rod-shaped straight cylinder; the shock-absorbing cone in the inverted posture is inserted into the second-order counter bore of the top surface from the upper side through the funnel-shaped straight cylinder of the shock-absorbing cone, and the shock-absorbing cone in the normal posture is inserted into the second-order counter bore of the top surface from the lower side through the funnel-shaped straight cylinder of the shock-absorbing cone.
A free travel gap H3 is reserved between the bottom of the axle sleeve and the upper end face of the rectangular base plate, and the free travel gap H3 is larger than the height value between the axis of the horizontal axle seat and the upper end face of the rectangular base plate; the node mandrel bar is a steel bar, and the rubber ring is fixedly connected with the middle section of the node mandrel bar through vulcanization; the upper end conical concave ring cover and the lower end conical convex ring table are both made of steel materials, the damping rubber sandwich layer is vulcanized and fixedly connected with the upper end conical concave ring cover and the lower end conical convex ring table, and the angle value range of the conical angle gamma of the lower end conical convex ring table is 80-120 degrees.
The connecting line of the central point a of the axle sleeve and the central point c of the rubber node shaft sleeve is taken as a line segment ac, the center of mass point of the through hole of the connecting plate is taken as b, and the distance from the central point c of the rubber node shaft sleeve to the axis e of the vertical shaft seat of the adjacent V-shaped rocker arm or the vertical shaft seat of the straight rocker arm is taken as L4, then the included angle theta between the line segment ac and the line segment ab is an obtuse angle, and the value range of the obtuse angle theta is 120-160 degrees.
The length value of the line segment ac is equal to that of the line segment ab, and the length value of the projection L3 of the line segment ab in the horizontal transverse axis direction is one third of the length value of the L4.
The beneficial effects of the invention are as follows: the special linear motor hanging seat for the railway train realizes an axle suspension type suspension mode through the axle sleeve and the axle in the double-axial shock-absorbing axle seat mechanism A, the axes of a rectangular tubular hanging ring in the double-axial shock-absorbing axle seat mechanism A, a horizontal axle seat at the bottom of the hanging ring and a vertical axle seat hole at the top of the hanging ring are perpendicular to each other in different planes, a bearing hanging seat connecting plate in the eccentric wheel axle seat is connected with the bearing hanging seat connecting plate along the tangential direction of the outer diameter of the axle sleeve, and the axis of a connecting plate through hole at the far end of the bearing hanging seat connecting plate is perpendicular to the different planes of the axis of the axle sleeve; the bearing hanging seat connecting plate and the rubber node shaft sleeve are connected with the outer diameter of the vehicle shaft sleeve according to an obtuse angle theta, so that an eccentric wheel transmission mechanism is formed. The through hole of the connecting plate is axially inserted into the lifting ring of the rectangular tubular lifting ring and is rotationally connected with the lower end of the vertical damping pin mechanism. The structure is arranged so that the radius value of the center of mass point b from the axle to the through hole of the connecting plate becomes a given fixed length value ab, so that the left-right swing of the axle in the XY plane can only be carried out around the axis of the through hole of the connecting plate, and the torque generated by the rectangular tubular hanging ring when the axle swings is released.
The vertical damping pin mechanism in the biaxial damping shaft seat mechanism A comprises two damping cones which are vertically symmetrically arranged, the two damping cones are respectively and coaxially fixedly connected to the upper end face and the lower end face of the vertical shaft seat hole at the top of the lifting ring, the damping cones are formed by vulcanizing and fixedly connecting a damping rubber sandwich layer with a conical structure at the upper end of a conical concave ring cover and a conical convex ring table at the lower end of the damping rubber sandwich layer respectively, the damping rubber sandwich layer can disperse and absorb the axial stress of the damping cones from various angles, and the conical structure is used for realizing the automatic centering function of the vertical damping pin mechanism and the vertical shaft seat hole at the top of the lifting ring. The lower damping cone which is in the normal installation posture and is positioned at the vertical shaft seat hole at the top of the lifting ring separates the vertical shaft seat hole at the top of the lifting ring from the bearing lifting seat connecting plate, has a vertical vibration buffering protection function, and the structure is arranged to enable the vertical vibration of the Z axis transmitted by the axle and the bearing lifting seat connecting plate to be absorbed by the two damping cones which are arranged symmetrically up and down, thereby playing a vertical damping role on the premise of releasing the rotational freedom degree of the bearing lifting seat connecting plate. The lower end of the rectangular tubular lifting ring is rotationally connected with the rectangular base plate through the horizontal shaft seat, so that the axle rotates around the horizontal shaft seat by taking the top height of the rectangular tubular lifting ring as a rotation radius, and the vibration of the axle along the X-axis direction is further released. The bolt thread middle section sleeve and the two damping cone bottom gaskets all play the roles of reducing the fit clearance of the components and reducing the abrasion.
The height value of the rectangular tubular lifting ring is used for guaranteeing a free travel gap H3 between the bottom of the axle sleeve and the upper end face of the rectangular base plate, and meanwhile, the height value of the rectangular tubular lifting ring is preset, and the height value of the rectangular tubular lifting ring can be used for setting an air gap value between a linear motor determined by the special linear motor lifting seat for the railway train and a special rail induction plate thereof, so that the air gap value is guaranteed to be within a rated parameter range.
The length value of the projection L3 of the connecting line between the axle sleeve center point a and the centroid point b of the connecting plate through hole in the horizontal transverse axis direction is one third of the length value of the distance L4 from the rubber node shaft sleeve center point c to the axis e of the adjacent V-shaped rocker arm vertical shaft seat or the straight rocker arm vertical shaft seat, so that the rotating force arm of the V-shaped rocker arm vertical shaft seat or the straight rocker arm vertical shaft seat acting on the axle sleeve center point a is far smaller than the rotating force arm of the centroid point b acting on the axle sleeve center point a, and the protection effect on the V-shaped rocker arm vertical shaft seat and the straight rocker arm vertical shaft seat is achieved.
The rubber node fixedly connected in the rubber node shaft sleeve is used for releasing the connection stress of the biaxial shock absorption shaft seat mechanism A and the corresponding central line straight rocker arm or V-shaped rocker arm from three degrees of freedom of XYZ. The three horizontal shaft seats are arranged in an isosceles triangle shape, and the lower bottom central line of the isosceles triangle is overlapped with the short side central line of the rectangular base plate; the vertical shaft seat of the V-shaped rocker arm and the vertical shaft seat of the straight rocker arm are both positioned on the X-axis and are in mirror symmetry with respect to the vertical Z-axis, and the side view contour line of the linear straight rocker arm and the side view contour line of the V-shaped rocker arm are in mirror symmetry with respect to the Z-axis.
The central line straight rocker arm or the V-shaped rocker arm is connected with the corresponding axle sleeve in a rotary connection mode, so that the central line straight rocker arm or the V-shaped rocker arm is matched with the rectangular tubular hanging ring together, and stress generated by left-right swing of the axle in an XY plane is released.
The special linear motor hanging seat for the railway train has the advantages that the base of the special linear motor hanging seat is suspended on two axles of the same bogie in an axle suspension mode through the symmetrical structure with triangular stability, the three double-axial damping shaft seat mechanisms A are respectively positioned at corner points of a stable triangle, further, vibration reduction and buffering absorption of all vibration vectors on the XYZ three-axis degrees of freedom are realized through the multiple groups of different-surface vertical shaft seats with elastic energy absorption and vibration reduction functions in the double-axial damping shaft seat mechanisms A, the constraint on the motion degrees of freedom of the axles of the bogie wheels due to the traditional axle suspension mode is thoroughly overcome, vibration of a framework or the axles directly acts on the linear motor in a rigid transmission mode, vibration among the three of the framework or the axles interferes with each other, the inherent difficulty of service life of the linear motor, the framework and the axles is affected, and the parameter range of an air gap value between the linear motor suspended by the special linear motor hanging seat and a special rail can completely meet the optimal design requirement.
In addition, the special linear motor hanging seat for the rail train has the advantages of simple and practical structure, convenient operation, low cost, convenient popularization and the like.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of a linear motor hanger dedicated for a rail train of the present invention;
FIG. 2 is a schematic view of the explosive assembly of FIG. 1;
FIG. 3 is a top view of the base of the present invention;
Fig. 4 is a front view of fig. 1;
FIG. 5 is a top view of the relative positional relationship of a linear straight rocker arm and a V-shaped rocker arm of the present invention;
FIG. 6 is a schematic perspective view of a dual axial shock absorbing axle seat mechanism according to the present invention;
FIG. 7 is a schematic view of the explosive assembly of FIG. 6;
FIG. 8 is a schematic perspective view of the bushing boss of the eccentric wheel vehicle of the present invention;
FIG. 9 is a schematic perspective view of a vertical load-bearing hanger of the present invention;
FIG. 10 is a schematic view of an explosive assembly of the vertical shock absorbing pin mechanism of the present invention;
FIG. 11 is an axial cross-sectional schematic perspective view of the bushing boss and vertical load bearing cradle of the present invention;
FIG. 12 is a schematic diagram of the relative positional relationship between the axle housing of the eccentric wheel vehicle of the present invention and the vertical load-bearing cradle and the adjacent V-shaped rocker arm vertical axle seat or straight rocker arm vertical axle seat, respectively;
FIG. 13 is a schematic diagram of the connection of the vertical shock absorbing pin mechanism of the present invention to the vertical load cradle and eccentric wheeler bushing mount, respectively;
FIG. 14 is a schematic view of the explosion assembly of the shock cone of the present invention;
FIG. 15 is a schematic cross-sectional view of FIG. 14;
FIG. 16 is a schematic cross-sectional view of the shock cone of the present invention;
fig. 17 is a schematic diagram of an application of the linear motor hanger bracket special for the rail train of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 16, the special linear motor lifting seat for the rail train comprises a base 1, a central line straight rocker arm 2, a V-shaped rocker arm 3 and three double-axial shock absorption shaft seat mechanisms A, wherein the central line straight rocker arm 2 and the V-shaped rocker arm 3 are uniformly distributed on the longitudinal central line of the base 1, one end of the central line straight rocker arm 2 is rotationally connected with the middle part of the base 1 through a vertical shaft seat, and the other end of the central line straight rocker arm 2 is fixedly connected with a horizontal elastic shaft component on the double-axial shock absorption shaft seat mechanism A; the V-shaped top of the V-shaped rocker arm 3 is rotationally connected with the middle part of the base 1 through a vertical shaft seat; the two bifurcated rocker arms 3-2 of the V-shaped rocker arm 3 are arranged in mirror symmetry by taking the longitudinal center line of the base 1 as a symmetrical axis, and the end part of each bifurcated rocker arm 3-2 is fixedly connected with the core shaft of the horizontal elastic shaft component on the corresponding double-axial shock absorption shaft seat mechanism A.
The three double-axial shock-absorbing shaft seat mechanisms A are arranged in an isosceles triangle by taking the longitudinal center line of the base 1 as a symmetrical axis, and the lower end of each double-axial shock-absorbing shaft seat mechanism A is rotationally connected with the base 1; the biaxial shock-absorbing shaft seat mechanism A is used for buffering vertical shock between the axle 8 and the base 1, limiting the axle 8 to rotate only around an axis perpendicular to the end face of the base 1, and limiting the rotating radius of the axle 8 and the rotating angle range; the biaxial shock-absorbing shaft seat mechanism A is also used for reducing the vibration amplitude of two degrees of freedom between the biaxial shock-absorbing shaft seat mechanism A and the central line straight rocker arm 2 in a plane parallel to the end face of the base 1 and limiting the vertical vibration amplitude of the biaxial shock-absorbing shaft seat mechanism A and the central line straight rocker arm 2 in a direction perpendicular to the end face of the base 1; the bi-axial shock-absorbing axle seat mechanism a is also used for reducing the vibration amplitude of two degrees of freedom between the bi-axial shock-absorbing axle seat mechanism a and the V-shaped rocker arm 3 in a plane parallel to the end face of the base 1 and limiting the vertical vibration amplitude of the bi-axial shock-absorbing axle seat mechanism a and the V-shaped rocker arm 3 in a direction perpendicular to the end face of the base 1.
The base 1 comprises a rectangular base plate 1-1, a V-shaped rocker arm vertical shaft seat 1-2, a straight rocker arm vertical shaft seat 1-3 and three horizontal shaft seats 1-4, wherein the V-shaped rocker arm vertical shaft seat 1-2, the straight rocker arm vertical shaft seat 1-3 and the three horizontal shaft seats 1-4 are fixedly connected to the upper end face of the rectangular base plate 1-1; the three horizontal shaft seats 1-4 are arranged in an isosceles triangle shape, and the lower center line of the isosceles triangle is overlapped with the center line of the short side of the rectangular base plate 1-1; the geometric center of the upper end face of the rectangular base plate 1-1 is set as an O point, the central line of the long side of the rectangle is set as a Y axis, the central line of the short side of the rectangle is set as an X axis, and an XYZ plane rectangular coordinate system is established by taking the direction of the vertex angle of the isosceles triangle formed by the three horizontal shaft bases 1-4 as the positive direction of the X axis, wherein the X axis is the center: the V-shaped rocker arm vertical shaft seat 1-2 and the straight rocker arm vertical shaft seat 1-3 are both positioned on the X axis and are in mirror symmetry with respect to the vertical Z axis; the geometric center of an isosceles triangle formed by the three horizontal shaft seats 1-4 coincides with the geometric center O point of the upper end surface of the rectangular base plate 1-1; two horizontal shaft seats 1-4 positioned on the bottom side of an isosceles triangle formed by the three horizontal shaft seats 1-4 are in mirror symmetry with respect to the X axis; and the distance D1 from the two horizontal shaft seats 1-4 positioned on the bottom edge of the isosceles triangle formed by the three horizontal shaft seats 1-4 to the geometric center O point is equal to the distance D2 from the rest of the horizontal shaft seats 1-4 to the geometric center O point.
The central line straight rocker arm 2 comprises a linear rocker arm rotating shaft sleeve ring seat 2-1, a linear rocker arm inclined rod 2-2 and a linear rocker arm node core shaft seat 2-3 which are integrally formed; the axis of the linear rocker arm rotating shaft sleeve ring seat 2-1 is perpendicular to the different surface of the axis of the linear rocker arm node core shaft seat 2-3, and the axis and the different surface are connected with each other through the linear rocker arm inclined rod 2-2; the straight rocker arm rotating shaft sleeve ring seat 2-1 is rotationally connected with the straight rocker arm vertical shaft seat 1-3.
The V-shaped rocker arm 3 comprises an integrally formed vertex rotating shaft seat 3-1, two bifurcation rocker arms 3-2 and two V-shaped rocker arm node core shaft seats 3-3, the overlooking structure of the V-shaped rocker arm 3 is letter V-shaped, and the vertex rotating shaft seat 3-1 is positioned at the sharp corner position at the bottom of the V-shaped and is in rotating connection with the V-shaped rocker arm vertical shaft seat 1-2; the lower ends of the two bifurcation rockers 3-2 are connected with the vertex rotating shaft seat 3-1 and are symmetrically arranged according to the postures of two letter V-shaped oblique sides, and the other end of each bifurcation rocker 3-2 is connected with a corresponding V-shaped rocker node core shaft seat 3-3; the axes of the two V-shaped rocker arm node core shaft seats 3-3 are parallel to each other, and the axis of the vertex rotating shaft seat 3-1 is perpendicular to the different planes of the axes of the V-shaped rocker arm node core shaft seats 3-3.
The V-shaped included angle beta of the two bifurcation rocking arms 3-2 has a value range of 30 degrees to 120 degrees, and the optimal value of the beta angle is 70 degrees; the value range of the included angle alpha between the straight rocker arm inclined rod 2-2 and the upper end surface of the rectangular base plate 1-1 is 20-45 degrees, and the optimal value of the angle alpha is 24 degrees; the side view contour of the center line straight rocker arm 2 is mirror symmetrical to the side view contour of the V-shaped rocker arm 3 about the Z-axis.
The biaxial shock-absorbing axle seat mechanism A comprises a rubber node 4 serving as a horizontal elastic axle component, an eccentric wheel axle sleeve seat 5, a vertical bearing hanging seat 6 and a vertical shock-absorbing pin mechanism 7, wherein the eccentric wheel axle sleeve seat 5 comprises an integrally formed wheel axle sleeve 5-1, a bearing hanging seat connecting plate 5-2 and a rubber node axle sleeve 5-3, the bearing hanging seat connecting plate 5-2 is connected with the wheel axle sleeve 5-1 along the tangential direction of the outer diameter of the wheel axle sleeve 5-1, a vertical connecting plate through hole 5-2-1 is arranged at the far end of the bearing hanging seat connecting plate 5-2, and the axis of the connecting plate through hole 5-2-1 is perpendicular to the different plane of the axis of the wheel axle sleeve 5-1; the rubber node shaft sleeve 5-3 is connected with the outer diameter of the vehicle shaft sleeve 5-1, and the axes of the rubber node shaft sleeve and the vehicle shaft sleeve are parallel; the rubber ring 4-1 of the rubber node 4 is fixedly connected with the middle section of the node mandrel bar 4-2; the rubber node shaft sleeve 5-3 is in coaxial interference fit with the outer wall of the rubber ring 4-1 of the rubber node 4; the straight rocker arm node core shaft seat 2-3 and the two V-shaped rocker arm node core shaft seats 3-3 are respectively and coaxially fixedly connected with two ends of a node core shaft rod 4-2 on a corresponding rubber node 4.
The vertical bearing hanging seat 6 comprises a rectangular tubular hanging ring 6-1, a hanging ring bottom horizontal shaft seat 6-2 and a hanging ring top vertical shaft seat hole 6-3, the hanging ring bottom horizontal shaft seat 6-2 is connected with the bottom of the rectangular tubular hanging ring 6-1 and integrally formed, and the hanging ring bottom horizontal shaft seat 6-2 is rotationally connected with the horizontal shaft seat 1-4; the vertical shaft seat hole 6-3 at the top of the lifting ring is arranged in the center of the upper end face of the rectangular pipe of the rectangular tubular lifting ring 6-1, the horizontal shaft seat 6-2 at the bottom of the lifting ring and the vertical shaft seat hole 6-3 at the top of the lifting ring are integrally formed, and the axes of the rectangular tubular lifting ring 6-1, the horizontal shaft seat 6-2 at the bottom of the lifting ring and the vertical shaft seat hole 6-3 at the top of the lifting ring are straight lines with different vertical surfaces.
The bearing hanging seat connecting plate 5-2 is axially inserted into the hanging ring of the rectangular tubular hanging ring 6-1, and the hanging ring top vertical shaft seat hole 6-3 and the connecting plate through hole 5-2-1 are coaxially and rotatably connected with the vertical damping pin mechanism 7.
The upper part of the vertical shaft seat hole 6-3 at the top of the lifting ring is provided with a second-order counter bore 6-3-1 at the top surface with the depth of H1, the lower part of the vertical shaft seat hole 6-3 at the top of the lifting ring is provided with a second-order counter bore 6-3-2 at the bottom surface with the depth of H1, and the second-order counter bore 6-3-1 at the top surface and the second-order counter bore 6-3-2 at the bottom surface are coaxial and share a central through hole.
The vertical damping pin mechanism 7 comprises a bolt 7-1, an upper locking nut 7-2, two damping cone bottom gaskets 7-3, two damping cones 7-4, a bolt thread middle section sleeve 7-5, a bearing hanging seat connecting plate nylon supporting pad 7-6 and a lower locking nut 7-7; the shock absorption cone 7-4 comprises a shock absorption rubber sandwich layer 7-4-2, an upper end conical concave ring cover 7-4-1 and a lower end conical convex ring table 7-4-3, and the shock absorption rubber sandwich layer 7-4-2 is of a bell-mouth-shaped inner and outer double conical surface thin wall ring table structure; the upper end conical concave surface ring cover 7-4-1 is of a funnel-shaped structure, the conical concave surface 7-4-1-2 in the shape of a funnel opening is completely matched with the outer conical ring table curved surface of the shock-absorbing rubber sandwich layer 7-4-2, and the two surfaces are fixedly connected; the top of the upper conical concave ring cover 7-4-1 is a funnel rod-shaped straight barrel 7-4-1-1; the outer side wall of the conical boss of the conical convex annular table 7-4-3 at the lower end is completely matched with the concave surface of the conical annular table at the inner side of the shock absorption rubber sandwich layer 7-4-2, and the two are fixedly connected; the inner diameter L2 of the central hole of the lower conical convex ring table 7-4-3 is the same as the outer diameter of the bolt thread middle section sleeve 7-5.
The bolt 7-1 sequentially passes through the upper end locking nut 7-2, a damping cone bottom surface gasket 7-3, a damping cone 7-4 in a flip-chip posture, a damping cone 7-4 in another normal posture, a bolt thread middle section sleeve 7-5, another damping cone bottom surface gasket 7-3, a connecting plate through hole 5-2-1, a bearing hanging seat connecting plate nylon supporting pad 7-6 and a lower end locking nut 7-7; the shock-absorbing cone 7-4 in the inverted posture, the connecting plate through hole 5-2-1 and the shock-absorbing cone 7-4 in the normal posture are sequentially and slidably connected with the outer diameter of the bolt thread middle section sleeve 7-5; the upper end locking nut 7-2 is in threaded connection with the upper section of the bolt 7-1, and the lower end locking nut 7-7 is in threaded connection with the lower section of the bolt 7-1 penetrating out from the lower side of the through hole 5-2-1 of the connecting plate.
The inner diameter value of the second-order counter bore 6-3-1 on the top surface and the inner diameter value of the second-order counter bore 6-3-2 on the bottom surface are the same as the outer diameter of the funnel-shaped straight barrel 7-4-1-1, the height value of the funnel-shaped straight barrel 7-4-1-1 is H2, and H2 = H1; the outer diameter of the upper bottom of the conical ring table of the shock absorption rubber sandwich layer 7-4-2 is larger than the outer diameter L1 of the funnel rod-shaped straight cylinder 7-4-1-1; the shock absorbing cone 7-4 in the inverted posture is inserted into the second-order counter bore 6-3-1 on the top surface from the upper side through the funnel-shaped straight cylinder 7-4-1-1, and the shock absorbing cone 7-4 in the normal posture is inserted into the second-order counter bore 6-3-1 on the top surface from the lower side through the funnel-shaped straight cylinder 7-4-1-1.
A free travel gap H3 is reserved between the bottom of the axle sleeve 5-1 and the upper end face of the rectangular base plate 1-1, and the free travel gap H3 is larger than the height value between the axis of the horizontal axle seat 1-4 and the upper end face of the rectangular base plate 1-1; the node mandrel bar 4-2 is a steel rod, and the rubber ring 4-1 is vulcanized and fixedly connected with the middle section of the node mandrel bar 4-2; the upper end conical concave ring cover 7-4-1 and the lower end conical convex ring table 7-4-3 are made of steel materials, the shock absorption rubber sandwich layer 7-4-2 is vulcanized and fixedly connected with the upper end conical concave ring cover 7-4-1 and the lower end conical convex ring table 7-4-3, the angle value range of the conical angle gamma of the lower end conical convex ring table 7-4-3 is 80-120 degrees, and the optimal value of the gamma angle gamma is 113 degrees.
The connecting line of the central point a of the vehicle shaft sleeve 5-1 and the central point c of the rubber node shaft sleeve 5-3 is taken as a line segment ac, the center of mass point of the connecting plate through hole 5-2-1 is taken as b, the distance from the central point c of the rubber node shaft sleeve 5-3 to the axis e of the adjacent V-shaped rocker arm vertical shaft seat 1-2 or the axis e of the adjacent vertical rocker arm vertical shaft seat 1-3 is taken as L4, then the included angle theta between the line segment ac and the line segment ab is an obtuse angle, the value range of the obtuse angle theta is 120-160 degrees, and the optimal value of the angle theta is 150 degrees.
The length value of the line segment ac is equal to the length value of the line segment ab, and the length value of the projection L3 of the line segment ab in the horizontal transverse axis direction is one third of the length value of L4.
When the linear motor hanging seat special for the rail train is specifically applied, SF-T-190 type rubber node 4 produced by Qingdao tetragonal vehicle research company is adopted.
As shown in fig. 17, one axle 8 on the same bogie is passed through and fixedly connected to the axle sleeve 5-1 in the positive X-axis direction, and the other axle is simultaneously passed through and fixedly connected to the axle sleeves 5-1 in the remaining two biaxial shock absorbing axle seat mechanisms a in the negative X-axis direction. After that, the linear motor to be suspended and fixed is fixedly connected to the lower end face of the rectangular base plate 1-1, namely, the installation operation of fixedly connecting the linear motor below the car body in an axle suspension manner by utilizing the linear motor hanging seat special for the rail train is completed.
Claims (9)
1. Special linear electric motor hanging seat of rail train, its characterized in that: the linear motor lifting seat comprises a base (1), a central line straight rocker arm (2), a V-shaped rocker arm (3) and three double-axial shock absorption shaft seat mechanisms (A), wherein the central line straight rocker arm (2) and the V-shaped rocker arm (3) are uniformly distributed on the longitudinal central line of the base (1), one end of the central line straight rocker arm (2) is rotationally connected with the middle part of the base (1) through a vertical shaft seat, and the other end of the central line straight rocker arm is fixedly connected with a horizontal elastic shaft component on one double-axial shock absorption shaft seat mechanism (A); the V-shaped top point of the V-shaped rocker arm (3) is rotationally connected with the middle part of the base (1) through a vertical shaft seat; the two bifurcated rocker arms (3-2) of the V shape on the V-shaped rocker arm (3) are arranged in mirror symmetry by taking the longitudinal central line of the base (1) as a symmetrical axis, and the end part of each bifurcated rocker arm (3-2) is fixedly connected with the mandrel of a horizontal elastic shaft part on a corresponding double-shaft vibration-absorbing shaft seat mechanism (A);
The three double-axial shock-absorbing shaft seat mechanisms (A) are arranged in an isosceles triangle by taking the longitudinal center line of the base (1) as a symmetrical axis, and the lower end of each double-axial shock-absorbing shaft seat mechanism (A) is rotationally connected with the base (1);
the double-axial shock-absorbing shaft seat mechanism (A) is used for buffering vertical shock between the axle (8) and the base (1), limiting the axle (8) to rotate only around an axis perpendicular to the end face of the base (1), and limiting the rotating radius of the axle (8) and the rotating angle range;
The double-axial shock-absorbing shaft seat mechanism (A) is also used for reducing the vibration amplitude of two degrees of freedom between the double-axial shock-absorbing shaft seat mechanism and the central line straight rocker arm (2) in a plane parallel to the end face of the base (1) and limiting the vertical vibration amplitude of the double-axial shock-absorbing shaft seat mechanism (A) and the central line straight rocker arm (2) in a direction perpendicular to the end face of the base (1);
The double-axial shock-absorbing shaft seat mechanism (A) is also used for reducing the vibration amplitude of two degrees of freedom between the double-axial shock-absorbing shaft seat mechanism and the V-shaped rocker arm (3) in a plane parallel to the end face of the base (1) and limiting the vertical vibration amplitude of the double-axial shock-absorbing shaft seat mechanism (A) and the V-shaped rocker arm (3) in a direction perpendicular to the end face of the base (1);
The base (1) comprises a rectangular base plate (1-1), a V-shaped rocker arm vertical shaft seat (1-2), a straight rocker arm vertical shaft seat (1-3) and three horizontal shaft seats (1-4), wherein the V-shaped rocker arm vertical shaft seat (1-2), the straight rocker arm vertical shaft seat (1-3) and the three horizontal shaft seats (1-4) are fixedly connected to the upper end face of the rectangular base plate (1-1); the three horizontal shaft seats (1-4) are arranged in an isosceles triangle shape, and the lower bottom central line of the isosceles triangle is coincident with the short side central line of the rectangular base plate (1-1); the geometric center of the upper end face of the rectangular base plate (1-1) is set as an O point, the central line of the long side of the rectangle is set as a Y axis, the central line of the short side of the rectangle is set as an X axis, and an XYZ plane rectangular coordinate system is established by taking the direction of the vertex angle of the isosceles triangle formed by the three horizontal shaft bases (1-4) as the positive direction of the X axis, wherein the X axis is: the V-shaped rocker arm vertical shaft seat (1-2) and the straight rocker arm vertical shaft seat (1-3) are both positioned on the X axis and are in mirror symmetry with respect to the vertical Z axis; the geometric center of an isosceles triangle formed by the three horizontal shaft seats (1-4) coincides with the geometric center O point of the upper end surface of the rectangular base plate (1-1); two horizontal shaft seats (1-4) positioned on the bottom side of an isosceles triangle formed by the three horizontal shaft seats (1-4) are in mirror symmetry with respect to the X axis; and the distance D1 from the two horizontal shaft seats (1-4) positioned on the bottom edge of the isosceles triangle formed by the three horizontal shaft seats (1-4) to the geometric center O point is equal to the distance D2 from the rest of the horizontal shaft seats (1-4) to the geometric center O point.
2. The rail train specific linear motor cradle of claim 1, wherein: the central line straight rocker arm (2) comprises a linear rocker arm rotating shaft sleeve ring seat (2-1), a linear rocker arm inclined rod (2-2) and a linear rocker arm node core shaft seat (2-3) which are integrally formed; the axis of the linear rocker arm rotating shaft sleeve ring seat (2-1) is perpendicular to the different surface of the axis of the linear rocker arm node core shaft seat (2-3), and the two are connected with each other through the linear rocker arm inclined rod (2-2); the linear rocker arm rotating shaft sleeve ring seat (2-1) is rotationally connected with the linear rocker arm vertical shaft seat (1-3);
The V-shaped rocker arm (3) comprises an integrally formed vertex rotating shaft seat (3-1), two bifurcation rocker arms (3-2) and two V-shaped rocker arm node shaft seats (3-3), the overlooking structure of the V-shaped rocker arm (3) is letter V-shaped, and the vertex rotating shaft seat (3-1) is positioned at the sharp corner position at the bottom of the V-shaped and is rotationally connected with the V-shaped rocker arm vertical shaft seat (1-2); the lower ends of the two bifurcation rockers (3-2) are connected with the vertex rotating shaft seat (3-1) and are symmetrically arranged according to the postures of two letter V-shaped oblique sides, and the other end of each bifurcation rocker (3-2) is connected with a corresponding V-shaped rocker node core shaft seat (3-3); the axes of the two V-shaped rocker arm node core shaft seats (3-3) are parallel to each other, and the axis of the vertex rotating shaft seat (3-1) is perpendicular to the different planes of the axis of the V-shaped rocker arm node core shaft seat (3-3).
3. The rail train specific linear motor cradle of claim 2, wherein: the V-shaped included angle beta of the two bifurcation rockers (3-2) is 30 degrees to 120 degrees; the value range of the included angle alpha between the straight rocker arm inclined rod (2-2) and the upper end surface of the rectangular base plate (1-1) is 20-45 degrees; the side view contour line of the neutral straight rocker arm (2) is in mirror symmetry with the side view contour line of the V-shaped rocker arm (3) about the Z axis.
4. A rail train specific linear motor cradle as set forth in claim 3, wherein: the double-axial damping shaft seat mechanism (A) comprises a rubber node (4) serving as a horizontal elastic shaft component, an eccentric wheel vehicle shaft sleeve seat (5), a vertical bearing hanging seat (6) and a vertical damping pin mechanism (7), wherein the eccentric wheel vehicle shaft sleeve seat (5) comprises an integrally formed axle sleeve (5-1), a bearing hanging seat connecting plate (5-2) and a rubber node shaft sleeve (5-3), the bearing hanging seat connecting plate (5-2) is connected with the axle sleeve (5-1) along the tangential direction of the outer diameter of the axle sleeve, a vertical connecting plate through hole (5-2-1) is formed at the far end of the bearing hanging seat connecting plate (5-2), and the axis of the connecting plate through hole (5-2-1) is perpendicular to the different plane of the axis of the axle sleeve (5-1); the rubber node shaft sleeve (5-3) is connected with the outer diameter of the axle sleeve (5-1), and the axes of the rubber node shaft sleeve and the axle sleeve are parallel; the rubber ring (4-1) of the rubber node (4) is fixedly connected with the middle section of the node mandrel bar (4-2); the rubber node shaft sleeve (5-3) is in coaxial interference fit with the outer wall of the rubber ring (4-1) of the rubber node (4); the straight rocker arm node core shaft seat (2-3) and the two V-shaped rocker arm node core shaft seats (3-3) are respectively and coaxially fixedly connected with two ends of a node core shaft rod (4-2) on a corresponding rubber node (4);
The vertical bearing hanging seat (6) comprises a rectangular tubular hanging ring (6-1), a hanging ring bottom horizontal shaft seat (6-2) and a hanging ring top vertical shaft seat hole (6-3), the hanging ring bottom horizontal shaft seat (6-2) is connected with the bottom of the rectangular tubular hanging ring (6-1) and integrally formed, and the hanging ring bottom horizontal shaft seat (6-2) is rotationally connected with the horizontal shaft seat (1-4); the vertical shaft seat hole (6-3) at the top of the lifting ring is arranged in the center of the upper end face of the rectangular pipe of the rectangular tubular lifting ring (6-1), the horizontal shaft seat (6-2) at the bottom of the lifting ring and the vertical shaft seat hole (6-3) at the top of the lifting ring are integrally formed, and the axes of the three are straight lines with different vertical surfaces;
The bearing hanging seat connecting plate (5-2) is axially inserted into the hanging ring of the rectangular tubular hanging ring (6-1), and a vertical shaft seat hole (6-3) at the top of the hanging ring and the connecting plate through hole (5-2-1) are coaxially and rotatably connected with the vertical damping pin mechanism (7);
The upper part of the lifting ring top vertical shaft seat hole (6-3) is provided with a top surface second-order counter bore (6-3-1) with the depth of H1, the lower part of the lifting ring top vertical shaft seat hole (6-3) is provided with a bottom surface second-order counter bore (6-3-2) with the depth of H1, and the top surface second-order counter bore (6-3-1) and the bottom surface second-order counter bore (6-3-2) are coaxial and share a central through hole.
5. The special linear motor cradle for a rail train according to claim 4, wherein: the vertical damping pin mechanism (7) comprises a bolt (7-1), an upper end locking nut (7-2), two damping cone bottom gaskets (7-3), two damping cones (7-4), a bolt thread middle section sleeve (7-5), a nylon supporting pad (7-6) for a bearing hanging seat connecting plate and a lower end locking nut (7-7); the damping cone (7-4) comprises a damping rubber sandwich layer (7-4-2), an upper end conical concave annular cover (7-4-1) and a lower end conical convex annular table (7-4-3), and the damping rubber sandwich layer (7-4-2) is of a bell-mouth-shaped inner and outer double conical surface thin-wall annular table structure; the upper end conical concave surface annular cover (7-4-1) is of a funnel-shaped structure, the conical concave surface (7-4-1-2) of the funnel shape is completely matched with the outer conical annular table curved surface of the shock-absorbing rubber sandwich layer (7-4-2), and the two are fixedly connected; the top of the upper end conical concave ring cover (7-4-1) is a funnel rod-shaped straight cylinder (7-4-1-1); the outer side wall of the conical boss of the conical convex annular table (7-4-3) at the lower end is completely matched with the concave surface of the conical annular table at the inner side of the shock absorption rubber sandwich layer (7-4-2), and the two are fixedly connected; the inner diameter L2 of the central hole of the conical convex ring table (7-4-3) at the lower end is the same as the outer diameter of the middle sleeve (7-5) of the bolt thread;
The bolt (7-1) sequentially passes through the upper end locking nut (7-2), a damping cone bottom surface gasket (7-3), a damping cone (7-4) in a flip-chip posture, a damping cone (7-4) in another normal installation posture, a bolt thread middle section sleeve (7-5), another damping cone bottom surface gasket (7-3), a connecting plate through hole (5-2-1), a nylon supporting pad (7-6) for a bearing hanging seat connecting plate and the lower end locking nut (7-7); the shock-absorbing cone (7-4) in the inverted posture, the connecting plate through hole (5-2-1) and the shock-absorbing cone (7-4) in the normal posture are sequentially connected with the outer diameter of the bolt thread middle section sleeve (7-5) in a sliding manner; the upper end locking nut (7-2) is in threaded connection with the upper section of the bolt (7-1), and the lower end locking nut (7-7) is in threaded connection with the lower section of the bolt (7-1) penetrating out from the lower part of the through hole (5-2-1) of the connecting plate.
6. The special linear motor cradle for a rail train according to claim 5, wherein: the inner diameter value of the second-order counter bore (6-3-1) on the top surface and the inner diameter value of the second-order counter bore (6-3-2) on the bottom surface are the same as the outer diameter of the funnel rod-shaped straight cylinder (7-4-1-1), the height value of the funnel rod-shaped straight cylinder (7-4-1-1) is H2, and H2 = H1; the outer diameter of the upper bottom of the conical ring table of the shock absorption rubber sandwich layer (7-4-2) is larger than the outer diameter L1 of the funnel rod-shaped straight cylinder (7-4-1-1); the shock absorption cone (7-4) in the inverted posture is inserted into the top surface second-order counter bore (6-3-1) from the upper side through the funnel rod-shaped straight cylinder (7-4-1-1) of the shock absorption cone, and the shock absorption cone (7-4) in the normal posture is inserted into the top surface second-order counter bore (6-3-1) from the lower side through the funnel rod-shaped straight cylinder (7-4-1-1) of the shock absorption cone.
7. The rail train specific linear motor cradle of claim 6, wherein: a free travel gap H3 is reserved between the bottom of the axle sleeve (5-1) and the upper end face of the rectangular base plate (1-1), and the free travel gap H3 is larger than the height value between the axis of the horizontal shaft seat (1-4) and the upper end face of the rectangular base plate (1-1); the node mandrel bar (4-2) is a steel rod, and the rubber ring (4-1) is fixedly connected with the middle section of the node mandrel bar (4-2) through vulcanization; the upper end conical concave ring cover (7-4-1) and the lower end conical convex ring table (7-4-3) are made of steel materials, the shock absorption rubber sandwich layer (7-4-2) is vulcanized and fixedly connected with the upper end conical concave ring cover (7-4-1) and the lower end conical convex ring table (7-4-3), and the angle value range of the conical angle gamma of the lower end conical convex ring table (7-4-3) is 80-120 degrees.
8. The rail train specific linear motor cradle of claim 7, wherein: the connecting line of the central point a of the axle sleeve (5-1) and the central point c of the rubber node axle sleeve (5-3) is taken as a line segment ac, the center of mass point of the through hole (5-2-1) of the connecting plate is taken as b, the distance from the central point c of the rubber node axle sleeve (5-3) to the axis e of the adjacent V-shaped rocker arm vertical axle seat (1-2) or the vertical rocker arm vertical axle seat (1-3) is taken as L4, then the included angle theta between the line segment ac and the line segment ab is an obtuse angle, and the value range of the obtuse angle theta is 120-160 degrees.
9. The rail train specific linear motor cradle of claim 8, wherein: the length value of the line segment ac is equal to that of the line segment ab, and the length value of the projection L3 of the line segment ab in the horizontal transverse axis direction is one third of the length value of the L4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910972123.4A CN110712530B (en) | 2019-10-14 | 2019-10-14 | Linear motor hanging seat special for rail train |
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| CN201910972123.4A CN110712530B (en) | 2019-10-14 | 2019-10-14 | Linear motor hanging seat special for rail train |
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| CN110712530A CN110712530A (en) | 2020-01-21 |
| CN110712530B true CN110712530B (en) | 2024-04-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013014303A (en) * | 2011-07-02 | 2013-01-24 | Am Creation:Kk | Motor-driven wheel with incorporated swing arm |
| CN106985868A (en) * | 2017-03-28 | 2017-07-28 | 中车南京浦镇车辆有限公司 | A kind of hanging type aerial track train bogie suspension gear |
| CN210970703U (en) * | 2019-10-14 | 2020-07-10 | 中车长春轨道客车股份有限公司 | Special linear motor hanging seat for rail train |
-
2019
- 2019-10-14 CN CN201910972123.4A patent/CN110712530B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013014303A (en) * | 2011-07-02 | 2013-01-24 | Am Creation:Kk | Motor-driven wheel with incorporated swing arm |
| CN106985868A (en) * | 2017-03-28 | 2017-07-28 | 中车南京浦镇车辆有限公司 | A kind of hanging type aerial track train bogie suspension gear |
| CN210970703U (en) * | 2019-10-14 | 2020-07-10 | 中车长春轨道客车股份有限公司 | Special linear motor hanging seat for rail train |
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| Publication number | Publication date |
|---|---|
| CN110712530A (en) | 2020-01-21 |
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