CN113911163B - Railway vehicle connecting device with convex cone, vehicle body connecting piece and railway vehicle - Google Patents
Railway vehicle connecting device with convex cone, vehicle body connecting piece and railway vehicle Download PDFInfo
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- CN113911163B CN113911163B CN202111340618.9A CN202111340618A CN113911163B CN 113911163 B CN113911163 B CN 113911163B CN 202111340618 A CN202111340618 A CN 202111340618A CN 113911163 B CN113911163 B CN 113911163B
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- buffer
- crushing
- pipe
- pull rod
- pressure
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- 239000000872 buffer Substances 0.000 claims abstract description 134
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 10
- 239000007853 buffer solution Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 6
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 238000003825 pressing Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/08—Buffers with rubber springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/16—Buffers absorbing shocks by permanent deformation of buffer element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G5/00—Couplings for special purposes not otherwise provided for
- B61G5/02—Couplings for special purposes not otherwise provided for for coupling articulated trains, locomotives and tenders or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G7/00—Details or accessories
- B61G7/10—Mounting of the couplings on the vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a railway vehicle connecting device with a convex cone, a vehicle body connecting piece and a railway vehicle, and belongs to the technical field of safety protection of railway vehicles, wherein the railway vehicle connecting device with the convex cone comprises a buffer device, a connecting structure and a crushing device, the buffer device comprises a mounting seat, a rotating shaft and a buffer, the mounting seat is used for fixing the buffer on a vehicle body, the rotating shaft is symmetrically arranged on two sides of the buffer, and the buffer is connected with the mounting seat through the rotating shaft; the connecting structure comprises a connecting pipe, a locating pin and a convex cone; the crushing device comprises a pressure pipe, a check bolt, a check washer, an anti-loosening plate, a fixing nut, a pressure cone, a flat key, a crushing pipe and a guide pull rod. According to the invention, the train operation safety can be improved through the buffer device, the connecting structure and the crushing device, the impact energy grading management can be realized, the impact energy absorption efficiency is improved, and train operation accidents and casualties caused by train impact collision are avoided.
Description
Technical Field
The invention relates to the technical field of safety protection of railway vehicles, in particular to a railway vehicle connecting device with a convex cone, a vehicle body connecting piece and a railway vehicle.
Background
Rail transit is becoming a main mode of public transportation due to the advantages of rapidness, high efficiency, environmental protection, energy conservation and the like. With the great increase of the running speed of the rail train, the running safety problem is closely concerned, and if a train collision accident occurs, the consequence thereof is immeasurable, particularly casualties and property loss, so that the train safety protection technology becomes particularly important.
The train connecting device is used as a connecting part between the rail vehicles, the traction vehicles run, and meanwhile, impact and vibration generated in the running process of the trains can be alleviated, energy generated in the collision process of the trains is absorbed, and the safety and the comfort of the running of the trains are directly related. With high attention paid to the running safety problem of the train, the train safety protection technology becomes particularly important, and the technology and development method of the connecting device are required to be improved. In the prior art, a hook is generally adopted as a train connecting device, only traction of a train is considered, the train connecting device is rigidly connected, safety technology of the train and energy management among the trains are not considered, a longitudinal energy absorbing device of the train is lacked, and safety and longitudinal comfort of the train are poor.
Disclosure of Invention
The invention aims to solve the technical problems and provide a railway vehicle connecting device with a convex cone, a vehicle body connecting piece and a railway vehicle.
The technical scheme adopted by the invention is as follows:
According to one aspect of the invention, there is provided a railway vehicle connecting device with a convex cone, comprising a buffer device, a connecting structure and a crushing device, wherein the buffer device comprises a mounting seat, two rotating shafts and a buffer, the mounting seat is used for fixing the buffer to a vehicle body, the two rotating shafts are symmetrically arranged at two sides of the buffer, the buffer is connected with the mounting seat through the rotating shafts, and the buffer can horizontally rotate around the rotating shafts relative to the first mounting seat; the crushing device is connected with the buffer device and comprises a pressure pipe, a lockbolt, a lockwasher, an anti-loosening plate, a fixing nut, a pressure cone, a flat key, a crushing pipe and a guide pull rod, wherein the pressure pipe is a hollow cylindrical pipe with a step, one end of the interior of the pressure pipe is provided with a key slot, the pressure cone is matched with the flat key through the key slot, the pressure cone is arranged on the end face of one end of the pressure pipe with a key slot opening through interference fit, the fixing nut is arranged on the step of the interior of the pressure pipe, one side of the fixing nut, far away from the flat key, is connected with the anti-loosening plate, a through hole is formed in the middle of the anti-loosening plate, the lockbolt passes through the through hole after being sleeved with the lockwasher, the other side of the pressure pipe is matched with the crushing pipe, and one side of the crushing pipe is connected with the guide pull rod; the connecting structure is connected with the buffer device through the crushing device and comprises a connecting pipe, a locating pin and a convex cone; one end of the connecting pipe is detachably connected with the convex cone, the other end of the connecting pipe is connected with the buffer device through a clamping ring, the convex cone is used for connecting two adjacent connecting structures, and the locating pin sequentially penetrates through the connecting pipe and the convex cone.
As a preferred technical scheme, the buffer comprises a buffer main body, a shell and a first pull rod, wherein the buffer main body is accommodated in the shell, one end of the shell is provided with a buffer support, the buffer support penetrates through the shell, one end of the buffer support stretches into the first pull rod, the buffer support is used for fixing the buffer, one end of the first pull rod is in contact with the buffer main body, and the other end of the first pull rod is connected with the crushing device through a clamping ring.
As a preferable technical scheme, the buffer main body is a rubber block or a polyurethane elastomer, the number of the two shells is symmetrically arranged, a plurality of open accommodating grooves are formed in each shell, the accommodating grooves are used for accommodating the buffer main body, the opening direction of each accommodating groove faces to the first pull rod, a plurality of gaps are formed in one end, connected with the buffer main body, of each first pull rod, the gaps correspond to the accommodating grooves one by one, and the buffer main body is fixed by the corresponding gaps and the corresponding accommodating grooves; one end of the first pull rod, which is far away from the buffer, is formed into a round table shape, and the first pull rod is connected with the crushing device through the clamping ring; one side of the shell, which is far away from the accommodating groove, is provided with a circular step structure, the shell is connected with the rotating shaft through bolts, and one end of the rotating shaft is connected with the mounting seat.
As a preferred technical scheme, the connection structure installs the tuber pipe connector through tuber pipe connector mount pad, the tuber pipe connector includes the connector body, locating sleeve, fixed cover and fixing device, the connector body wears to locate the tuber pipe connector, the connector body is used for connecting two adjacent the tuber pipe of automobile body, the connector body is kept away from the one end of convex cone is provided with fixing device, the connector body is close to the one end of convex cone is provided with the locating sleeve, the fixed cover will the locating sleeve support in the tuber pipe connector, the connector body through the locating sleeve with fixing device press from both sides tightly in the tuber pipe connector, the locating sleeve with the fixed cover passes through cylindric lock and locks each other.
As a preferable technical scheme, the fixing device is a fastening nut, and a thread is formed at one end of the connector body away from the convex cone, and is used for installing the fastening nut; the air duct connector further comprises a sealing piece, wherein the sealing piece is arranged between the positioning sleeve and the fixing sleeve and is used for sealing the joint of the air duct and the positioning sleeve.
As a preferable technical scheme, one end of the crushing pipe is a circular pipe, and is arranged on a boss of the guide pull rod through interference fit, and the other end of the crushing pipe is a horn mouth, so that the pressure pipe and the pressure cone are conveniently pressed into the crushing pipe; the contact end surface of the crushing tube and the pressure tube adopts a conical opening, and the conical surface of the pressure cone is arranged on the conical opening of the crushing tube.
As a preferred technical scheme, an elongated assembly process observation hole is formed in the pressure pipe, and the position of the locking groove of the fixing nut is observed through the observation hole.
As a preferable embodiment, the crush tube is a thin-walled member, and absorbs energy by plastic deformation.
According to another aspect of the invention, there is provided a vehicle body connecting piece, a buffer device is placed in a shock absorption buffer system of the vehicle body connecting piece, the shock absorption buffer system comprises a buffer device and a crushing device, a first clamping ring and a second clamping ring are respectively installed on two sides of the crushing device, the first clamping ring is connected with a connecting structure, the connecting structure is connected with the crushing device, one end of the buffer device is connected with the crushing device, the second clamping ring is connected with the other end of the buffer device, the other end of the buffer device is connected with an installation seat, and an elastic support is installed on the lower end face of one side, close to the crushing device, of the buffer device.
According to a further aspect of the present invention there is provided a railway vehicle comprising a plurality of sections of vehicle bodies connected by means of the above-described vehicle body connectors.
The beneficial effects of the invention are as follows:
1. The invention absorbs the impact energy between the train bodies in the normal coupling and running process of the train through the buffer device, improves the safety performance of the train, improves the energy management between the train bodies, and improves the safety of the train and the comfort during use; the buffer device is arranged on the corresponding vehicle body through the mounting seat; the buffer can rotate horizontally relative to the mounting seat around the rotating shaft, so that the train body can rotate relatively at a certain angle, and the train can pass through a curve. The invention has the main functions of ensuring the mechanical connection and the gas path connection between two adjacent vehicle bodies, and the connection and the disassembly need to be manually operated, thereby improving the mechanical strength in the connection process, ensuring the connection accuracy and being convenient for checking whether the connection is in place.
2. The buffer main body is contained in the shell, so that the integrity of the buffer is enhanced, the stability and the energy absorption efficiency of the buffer are improved, the buffer support is used for supporting the shell, the integrity of the buffer is further enhanced, and the stability and the energy absorption rate of the buffer are further improved.
3. The invention provides a round table body formed by one end of a first pull rod, and the end is connected with a connecting structure through a clamping ring. The buffer shell is internally provided with the pull rod and the buffer main body, and is tightly pressed through the upper shell and the lower shell, so that the buffer main body has a certain pretightening force after being installed, and the train can enable the first pull rod to move relative to the shell when impact force and traction force are generated, so that the buffer main body generates creep, and the traction force of the train is transmitted and the impact force of the train is absorbed.
4. The invention not only can improve the running safety of the train, but also has good mechanical connection strength, no looseness, simple structure and convenient disassembly and assembly, and can realize the hierarchical management of the impact energy, improve the absorption efficiency of the impact energy and avoid train running accidents and casualties caused by the impact collision of the train.
5. The invention is characterized in that a long assembly process observation hole is formed on the pressure pipe, the processing is simple, the operation is convenient, the problem that the positions of the guide pull rod anti-loosening groove and the fixing nut anti-loosening groove are misplaced is well solved, the problem that the anti-loosening plate is not installed in place is greatly improved, and the production cost is reduced.
6. The pressure pipe is pressed by the press machine, the pressure cone is pressed with certain pressure, the crushing pipe is deformed to form certain elastic force, the whole crushing device is controlled to reach the design height, the corresponding precompression is formed by the crushing device, the design height and precompression value of the crushing device can be well controlled, the operation is simple, and the quality is reliable.
Drawings
For more clearly describing the technical solution of the embodiments of the present invention, the following description will briefly describe the drawings required to be used in the embodiments, and it should be understood that the proportional relationships of the components in the drawings in this specification do not represent the proportional relationships in actual material selection design, but are merely schematic diagrams of structures or positions, where:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the buffering device of the present invention;
FIG. 3 is a schematic view of the configuration of the crush apparatus of the present invention;
FIG. 4 is a schematic view of the air duct connector of the present invention;
fig. 5 is a schematic structural view of the connection structure of the present invention.
The reference numerals in the drawings indicate:
1-a buffer device; 10-mounting seats; 11-a rotating shaft; 12-a housing; 13-a buffer body; 14-cushioning support; 15-a first pull rod; a 2-linkage structure; 21-connecting pipes; 22-an air duct connector mounting base; 23-locating pins; 24-convex cone; 3-crushing device; 31-pressure tube; 32-lockbolts; 33-a lock washer; 34-an anti-loosening plate; 35-fixing the nut; 36-pressure cone; 37-flat keys; 38-crushing the tube; 39-a guide pull rod; 4-an air duct connector; 41-a connector body; 42-tightening the nut; 43-cylindrical pins; 44-positioning sleeve; 45-sealing member; 46-fixing sleeve; 5-snap ring.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention.
The present invention will be described in detail with reference to fig. 1 to 5.
Example 1
As shown in fig. 1 to 5, the present invention provides a railway vehicle connection device with a convex cone, which comprises a buffer device 1, a connection structure 2 and a crushing device 3, wherein the buffer device 1 comprises a mounting seat 10, two rotating shafts 11 and a buffer, the mounting seat 10 is used for fixing the buffer to a vehicle body, the two rotating shafts 11 are symmetrically arranged at two sides of the buffer, the buffer is connected with the mounting seat 10 through the rotating shafts 11, and the buffer can horizontally rotate around the rotating shafts 11 relative to the first mounting seat 10;
The connecting structure 2 is connected with the buffer device 1 through the crushing device 3, and the connecting structure 2 comprises a connecting pipe 21, a positioning pin 23 and a convex cone 24; one end of the connecting pipe 21 is detachably connected with the convex cone 24, the other end of the connecting pipe 21 is connected with the buffer device 1 through a clamping ring 5, the convex cone 24 is used for connecting two adjacent connecting structures 2, and the positioning pin 23 sequentially penetrates through the connecting pipe 21 and the convex cone 24;
The crushing device 3 with buffer is connected, the crushing device 3 includes pressure pipe 31, lockbolt 32, lock washer 33, anti-loosening plate 34, fixation nut 35, pressure cone 36, flat key 37, crushing pipe 38 and direction pull rod 39, and pressure pipe 31 is the cavity cylinder pipe that has the step, and open the inside one end of pressure pipe 31 has the keyway, through the keyway with flat key 37 cooperation, pressure cone 36 passes through interference fit and installs on the terminal surface of pressure pipe 31 having keyway mouth one end, installs fixation nut 35 on the step of pressure pipe 31 inside, and fixation nut 35 is kept away from flat key 37 one side and is connected with anti-loosening plate 34, the through-hole has been seted up at anti-loosening plate 34 middle part, passes this through-hole after lockbolt 32 is sheathe lock washer 33, the pressure pipe 31 opposite side matches with crushing pipe 38, crushing pipe 38 one side is connected with direction pull rod 39.
The working principle of the invention is as follows: the connection structure 2 plays a role in connecting the bodies, wherein the buffer device 1 plays a role in absorbing impact energy between the bodies in normal train connection and operation, and the crush tube 38 in the crush device 3 absorbs energy through plastic deformation so as to achieve the effect of absorbing impact energy between the adjacent bodies on the basis of ensuring connection between the adjacent bodies.
In the present invention, the connection tube 21 and the pressure tube 31 may be integrally constructed, that is, the connection tube 21 and the pressure tube 31 may be a tube having one end for transmitting force in the crushing device 3 and the other end for connecting the connection device 2.
The other end of the connecting pipe 21 is connected with the buffer device 1 through the snap ring 5, that is, the other end of the connecting pipe 21 is fixedly connected with the pressure feed pipe 38 through structures such as a pressure cone 36, a fixing nut 35, a guide pull rod 39 and the like, and plays a role in connection and transmission.
The buffer device 1 is used for absorbing impact energy between the train bodies in the normal coupling and running processes of the train, improving the safety performance of the train, perfecting energy management between the train bodies and improving the safety of the train and the comfort of the train in use; the mounting base 10 is used for mounting the buffer device 1 on a corresponding vehicle body; the damper is rotatable horizontally about the swivel axis 11 relative to the mounting 10 so that relative rotation between the bodies of the vehicle can occur through a degree of angle to facilitate passage of the train through a curve.
The damper of the present invention is structurally integrated with the mount 10 and performs the functions of elastic damping, horizontal centering and vertical support of the connection device. The core element of the cushioning device 1 is a bumper which absorbs energy by elastic deformation in both the pulling and pressing directions, and all impact energy will be absorbed by the bumper. The connection form between the mounting base 10 and the rotating shaft 11 can be selected as follows: the mounting seat 10 is provided with a boss round hole for mounting the rotating shaft 11.
It can be understood that the invention has the main functions of ensuring the mechanical connection and the gas path connection between two adjacent vehicle bodies, and the connection and the disassembly need to be manually operated, thereby improving the mechanical strength in the connection process, ensuring the connection accuracy and being convenient for checking whether the connection is in place.
In addition, the clasp 5 is a conventional clasp structure including an upper clasp, a lower clasp, a stop block, an anti-loosening plate, a connecting bolt, etc. commonly used in the field of train connection, and the specific structure thereof will not be described herein for avoiding redundancy.
Example 2
As shown in fig. 2, the buffer according to this embodiment is based on embodiment 1, the buffer includes a buffer main body 13, a housing 12, and a first pull rod 15, where the buffer main body 13 is accommodated in the housing 12, one end of the housing 12 is provided with a buffer support 14, the buffer support 14 is disposed through the housing 12, and one end of the buffer support 14 extends into the first pull rod 15, the buffer support 14 is used for fixing the buffer, one end of the first pull rod 15 contacts with the buffer main body 13, and the other end of the first pull rod 15 is connected with the crushing device 3 through a snap ring 5.
The buffer main body is accommodated in the shell 12, so that the integrity of the buffer of the invention is enhanced, the stability and the energy absorption efficiency of the buffer are improved, the buffer support 14 is used for abutting against the shell, the integrity of the buffer of the invention is further enhanced, and the stability and the energy absorption efficiency of the buffer of the invention are further improved.
Example 3
In this embodiment, on the basis of embodiment 2, the buffer main body 13 is a rubber block or a polyurethane elastomer, the two shells 12 are symmetrically arranged, a plurality of open accommodating grooves are formed in each shell 12, the accommodating grooves are used for accommodating the buffer main body 13, the opening direction of each accommodating groove faces the first pull rod 15, a plurality of notches are formed in one end, connected with the buffer main body 13, of the first pull rod 15, the notches are in one-to-one correspondence with the accommodating grooves, and the notches and the accommodating grooves fix the buffer main body 13; one end of the first pull rod 15, which is far away from the buffer, is formed into a truncated cone shape, and the first pull rod 15 is connected with the crushing device 3 through the clamping ring 5; one side of the shell 12, which is far away from the accommodating groove, is provided with a circular step structure, the shell 12 is connected with the rotating shaft 11 through bolts, and one end of the rotating shaft 11 is connected with the mounting seat 10.
It will be appreciated that the housing 12 of the damper of the present invention is composed of two parts, namely, an upper housing and a lower housing, and the inner side of the housing 12 is formed in a corrugated structure, which cooperates with the outer contour of a part of the damper body 13 to prevent the damper body 13 from sliding. One end of the first pull rod 15 is formed into a corrugated structure and is matched with the external contour of the other part of the buffer main body 13, so that the stability of the buffer main body 13 is further improved, and the buffer main body 13 cannot slide.
Specifically, the other end of the first pull rod 15 is formed as a circular truncated cone, and this end is connected to the crushing device 3 via a snap ring. The first pull rod 15 and the buffer main body 13 are installed in the buffer shell 12 and are pressed through the upper shell and the lower shell, so that the buffer main body 13 has a certain pretightening force after installation, and when the train generates impact force and traction force, the first pull rod 15 can move relative to the shell 12, so that the buffer main body 13 generates creep, and the traction force of the train is transmitted and the impact force of the train is absorbed.
Example 4
As shown in fig. 4, in this embodiment, on the basis of embodiment 2, the air duct connector 4 is mounted on the connection structure 2 through the air duct connector mounting seat 22, the air duct connector 4 includes a connector body 41, a positioning sleeve 44, a fixing sleeve 46 and a fixing device, the connector body 41 is penetrated in the air duct connector 4, the connector body 41 is used for connecting air ducts of two adjacent vehicle bodies, a fixing device is disposed at one end of the connector body 41 away from the convex cone 24, a positioning sleeve 44 is disposed at one end of the connector body 41 near the convex cone 24, the positioning sleeve 44 is abutted against the air duct connector 4 by the fixing sleeve 46, the connector body 41 is clamped to the air duct connector 4 through the positioning sleeve 44 and the fixing device, and the positioning sleeve 44 and the fixing sleeve 46 are mutually locked through a cylindrical pin 43; the fixing means is a fastening nut 42, and the end of the connector body 41 remote from the nose cone 24 is formed with a thread for mounting the fastening nut 42. The duct connector 4 further comprises a sealing member 45, wherein the sealing member 45 is arranged between the positioning sleeve 44 and the fixing sleeve 46, and is used for sealing the joint of the duct and the positioning sleeve 44.
The present embodiment provides a preferred configuration of the male taper 24 wherein a cylindrical end of the male taper 24 is adapted to facilitate mating with the connecting structure 2 to form a secure and reliable connection, and a conical end of the male taper 24 is adapted to connect with another connecting structure 2 to provide for a more convenient mating between the two connecting structures 2. It will be appreciated that the end of the connection structure 2 remote from the crushing device 3 is formed as a convex cone 24 which serves as a guide and centering function and can be aligned quickly to achieve mechanical and pneumatic connection of the coupling device.
The air duct connector 4 can achieve connection of total air between two adjacent car bodies while the two adjacent car bodies are in butt joint, improves connection efficiency, and simplifies operation flow.
Example 5
As shown in fig. 3, in this embodiment, based on embodiment 1, one end of the crushing tube 38 is a circular tube, and is mounted on a boss of the guide pull rod 39 by interference fit, and the other end is a bell mouth, so that the pressure tube 31 and the pressure cone 36 are pressed into the crushing tube 38; the end surface of the crushing tube 38 contacting the pressure tube 31 adopts a conical mouth, and the conical surface of the pressure cone 36 is fitted to the conical mouth of the crushing tube 38. The pressure pipe 31 is provided with an elongated assembly process observation hole through which the position of the locking groove of the fixing nut 35 is observed. The crush tube 38 is a thin-walled member that absorbs energy by plastic deformation.
The working principle/working process of the invention is as follows: the crush tube 38 is a thin-walled member that absorbs energy by plastic deformation and is an important component of the crush energy absorber. The crushing tube 38 is in the shape of a horn, one end of the crushing tube is a circular tube, and the crushing tube is arranged on a boss of the guide pull rod 39 through interference fit; and has a flare at one end to facilitate the pressing of pressure tube 31 and pressure cone 36 into pressure feed tube 38.
A guide pull rod 39 primarily connects pressure tube 31 and crushing tube 38 to prevent rotation of pressure tube 31 and to move pressure tube 31 in an axial direction; the guide pull rod 39 is a T-shaped cylinder, the surface of the cylinder at the smaller end of the diameter is provided with a thread, the end surface of the cylinder is provided with a groove and a threaded hole, and the groove can be a straight groove or a cross groove or other through grooves; the larger diameter end of the guide pull rod 39 is a truncated cone. The guide pull rod 39 is provided with a key slot, and the flat key 37 is mounted in the key slot of the guide pull rod 39 by interference fit. The larger diameter end of the guide pull rod 39 is a truncated cone, the end is connected with a buffer of a vehicle body connecting piece through a clamping ring 5, and the crushing pipe 38 is arranged on a boss of the guide pull rod 39 through interference fit.
The shape of the fixing nut 35 can be a cylinder or a quadrangle or a polygon, one end of the fixing nut is provided with a notch, the other end face is a plane, and the inside of the fixing nut is provided with a threaded through hole. After pressure tube 31 is press fit into pressure feed tube 38, it may be secured by a retaining nut 35.
The middle of the anti-loosening plate 34 is provided with a through hole, and the appearance of the anti-loosening plate can be a straight shape or a cross shape or various combinations of the straight shape and the cross shape.
The combination of the pressure tube 31 and the pressure cone 36 is pressed into the crushing tube 38 along the guide pull rod 39, then the fixing nut 35 is fixed on the screw thread of the guide pull rod 38, the anti-loosening plate 34 is placed in the cross groove, and finally the anti-loosening plate 34 is fixed on the guide pull rod 39 by the anti-loosening bolt 32 and the anti-loosening washer 32. Because the anti-loosening plate 34 is connected with the guide pull rod 39 and the fixing nut 35 at the same time, the fixing nut 35 can be prevented from rotating around the guide pull rod 39, the fixing nut 35 is prevented from falling off, the train is prevented from being woven off, and the operation safety is ensured.
In order to prevent the fixing nut 35 from easily loosening or falling off, one end of the guide pull rod 39 is made into a cross-shaped anti-loosening groove, one end of the fixing nut 35 is also made into an anti-loosening groove, the anti-loosening plate 34 is used for clamping the anti-loosening groove, and the anti-loosening plate 34 is fixed in the anti-loosening groove of the guide pull rod 38 and the anti-loosening groove of the fixing nut 35 by the anti-loosening bolt 32, so that the fixing nut 35 is not easy to loosen or fall off.
In the production assembly process, the anti-loosening groove of the guide pull rod 39 is difficult to align with the anti-loosening groove of the fixing nut 35, if the positions of the anti-loosening groove of the guide pull rod 39 and the anti-loosening groove of the fixing nut 35 are misplaced, the anti-loosening plate 34 is not installed in place, the fixing nut 35 is easy to fall off, the safe operation of a vehicle is affected, and the method is time-consuming and labor-consuming and has low efficiency. When the crushing device is assembled, the pressure pipe 31 is pressed by a press machine, and a certain pressure is applied to the pressure cone 36, so that the crushing pipe 38 is deformed to form a certain precompression, and the design height is reached. The anti-loosening plate 34 is fixed by the fixing nut 35, the anti-loosening plate 34 is fixed by the anti-loosening bolt 32 and the anti-loosening washer 33, the whole crushing device 2 is used for forming an integral assembly with pre-compression force to reach the designed height, and the impact energy generated during starting, braking or collision can be timely transmitted to the crushing device 2 to absorb the energy in the running process of the vehicle, so that the safety of the vehicle and passengers is ensured.
In this embodiment, the pressing tool, the pressure tube 31 and the pressure cone 36 are pre-pressed by the pressing head of the pressing machine during assembly, so that the crushing tube 38 is deformed to a certain extent, the fixing nut 35 is screwed by the fixing nut tool to fix the crushing tube, the anti-loosening plate 34 is clamped into the anti-loosening grooves of the guide pull rod 39 and the fixing nut 35, and the anti-loosening plate 34 is fixed by the anti-loosening washer 33 and the anti-loosening bolt 32, so that the crushing device 2 is formed by the pressure tube 31, the crushing tube 38, the guide pull rod 39, the pressure cone 36, the flat key 37, the fixing nut 35, the anti-loosening plate 34, the anti-loosening washer 33 and the anti-loosening bolt 32 together. The pre-pressing force generated by the second pre-pressing of the press enables the crushing device 2 to be formed with a certain pre-pressing force, so that the overall assembly with a designed height is achieved, and energy generated during starting, braking or collision in vehicle transportation can be timely transmitted to the crushing tube 38 in the crushing device 2 to generate certain deformation to absorb the energy, thereby ensuring the safety of vehicles and passengers.
The orifice of the crushing tube 38 is made into an angular conical mouth, namely a horn mouth, the pressure cone 36 is also made into an angular conical surface, the pressure cone 36 is assembled on the pressure tube 31, the conical surface of the pressure cone 36 is assembled with one end of the angular conical mouth of the crushing tube 38, the pressure tube is pressed by a press during assembly, and certain pressure is applied to the pressure cone, so that certain deformation is generated on the crushing tube 38, certain pre-pressure is formed, and the design height is reached.
The design height and the pre-pressure value of the crushing device 2 can be well controlled, and the crushing device is simple to operate and reliable in quality.
The guide pull rod 39 one end makes the cross lockgroove, and cross lockgroove is unanimous with the keyway direction of guide pull rod 39, be convenient for with the lockgroove of fixation nut 35 during the assembly, the lockgroove is also made to fixation nut 35 one end, the lockgroove of fixation nut 35 is used with the cross lockgroove cooperation of guide pull rod 39 during the assembly, the locking plate 34 card is in the cross lockgroove of guide pull rod 39 and the lockgroove of fixation nut 35, fix locking plate 34 on guide pull rod 39 with lockbolt 32 and lockwasher 33, prevent fixation nut 35 becomes flexible, the pressure tube 31 is exerted the precompression to pressurization frock through the pressure tube 31 and pressure awl 36 during the assembly, make the crushing tube 38 produce certain deformation, fix with fixation nut 35 when reaching precompaction design height position, open an elongated observation hole in its precompaction design height position department, be convenient for observe the lockgroove of fixation nut 35 and the cross lockgroove of guide pull rod 39 whether align, use locking plate 34 card just in the cross lockgroove of fixation nut 35 and guide pull rod 39.
Example 6
The embodiment discloses vehicle body connecting piece, wherein, buffer 1 places in the shock attenuation buffer system of vehicle body connecting piece, shock attenuation buffer system includes buffer 1 and crushing device 3, first snap ring and second snap ring are installed respectively to the both sides of crushing device 3, first snap ring with connection structure 2 is connected, connection structure 2 with crushing device 3 is connected, buffer 1's one end with crushing device 3 is connected, the second snap ring with buffer 1's the other end is connected, buffer 1's the other end with mount pad 10 is connected, buffer 1 is close to elastic support 14 is installed to the terminal surface under one side of crushing device 3.
When the vehicle is transported, started, braked, vibrated and impacted, external force is generated, so that the vehicle body connecting piece generates the following motion states:
When the train passes through the curve, the buffer can horizontally rotate relative to the mounting seat around the rotating shaft 11, so that the train can relatively rotate at a certain angle between the train bodies, and the train can pass through the curve.
Under the action of external force in the horizontal direction forwards or backwards, the front and back movement of the vehicle body connecting piece generates forward pulling force or backward pressing force, the first pull rod 15 of the buffer device 1 is stretched forwards or compressed backwards, and the buffer support 14 swings forwards or backwards along with the pull rod, so that the cantilever of the vehicle body connecting piece is supported.
The long observation hole is on the same central line with the pressure pipe key groove and is opposite to the long observation hole on the pressure pipe 31, the special shape of the long observation hole is a round hole or a square hole and holes with other shapes, the long observation hole is used for observing whether the locking groove of the fixing nut 35 and the cross locking groove of the guide pull rod 39 are right in the assembly position, the long assembly process observation hole is formed in the pressure pipe, the processing is simple, the operation is convenient, the problem that the positions of the locking groove of the guide pull rod and the locking groove of the fixing nut are misplaced is well solved, the problem that the locking plate can not be assembled in place is greatly improved, the production efficiency is greatly improved, and the production cost is reduced.
Example 7
The present embodiment discloses a railway vehicle comprising a plurality of sections of vehicle bodies connected to each other by the vehicle body connecting member of embodiment 6. After the two train bodies are connected, the overall safety performance of the train is guaranteed, and the energy management between the train bodies is improved, so that the safety and the comfort of the train are improved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. A railway vehicle connecting device with a convex cone is characterized in that,
Comprises a buffer device (1), a connecting structure (2) and a crushing device (3),
The buffer device (1) comprises a mounting seat (10), two rotating shafts (11) and a buffer, wherein the mounting seat (10) is used for fixing the buffer on a vehicle body, the two rotating shafts (11) are symmetrically arranged on two sides of the buffer, the buffer is connected with the mounting seat (10) through the rotating shafts (11), and the buffer can horizontally rotate around the rotating shafts (11) relative to the mounting seat (10);
The crushing device (3) is connected with the buffer device, the crushing device (3) comprises a pressure pipe (31), a lockbolt (32), a locking washer (33), an anti-loosening plate (34), a fixing nut (35), a pressure cone (36), a flat key (37), a crushing pipe (38) and a guide pull rod (39), the pressure pipe (31) is a hollow cylindrical pipe with steps, a key groove is formed in one end of the interior of the pressure pipe (31), the pressure cone (36) is matched with the flat key (37) through the key groove, the pressure cone (36) is arranged on the end face of the pressure pipe (31) with a key groove opening through interference fit, the fixing nut (35) is arranged on the step of the interior of the pressure pipe (31), one side, far away from the flat key (37), of the fixing nut (35) is connected with the anti-loosening plate (34), a through hole is formed in the middle of the anti-loosening plate (34), the lockbolt (32) passes through the through hole after being sleeved with the locking washer (33), the other side of the pressure pipe (31) is matched with the crushing pipe (38), and one side of the crushing pipe (38) is connected with the guide pull rod (39).
The connecting structure (2) is connected with the buffer device (1) through the crushing device (3), and the connecting structure (2) comprises a connecting pipe (21), a locating pin (23) and a convex cone (24); one end of the connecting pipe (21) is detachably connected with the convex cone (24), the other end of the connecting pipe (21) is connected with the buffer device (1) through a clamping ring (5), the convex cone (24) is used for connecting two adjacent connecting structures (2), and the positioning pin (23) sequentially penetrates through the connecting pipe (21) and the convex cone (24);
The buffer comprises a buffer main body (13), a shell (12) and a first pull rod (15), wherein the buffer main body (13) is accommodated in the shell (12), one end of the shell (12) is provided with a buffer support (14), the buffer support (14) penetrates through the shell (12), one end of the buffer support (14) stretches into the first pull rod (15), the buffer support (14) is used for fixing the buffer, one end of the first pull rod (15) is in contact with the buffer main body (13), and the other end of the first pull rod (15) is connected with the crushing device (3) through a clamping ring (5);
The utility model provides a wind pipe connector (4) is installed through tuber pipe connector mount pad (22) to connection structure (2), tuber pipe connector (4) include connector body (41), spacer sleeve (44), fixed cover (46) and fixing device, connector body (41) wear to locate tuber pipe connector (4), connector body (41) are used for connecting two adjacent the tuber pipe of automobile body, connector body (41) keep away from the one end of bulge cone (24) is provided with fixing device, connector body (41) are close to the one end of bulge cone (24) is provided with spacer sleeve (44), spacer sleeve (46) will spacer sleeve (44) butt in tuber pipe connector (4), connector body (41) through spacer sleeve (44) with fixing device clamp in tuber pipe connector (4), spacer sleeve (44) with fixed cover (46) are through cylindric lock each other.
2. A railway vehicle connection with a convex cone according to claim 1, wherein,
The buffer main body (13) is a rubber block or a polyurethane elastomer, the number of the two shells (12) is symmetrically two, a plurality of open accommodating grooves are formed in each shell (12), the accommodating grooves are used for accommodating the buffer main body (13), the opening direction of each accommodating groove faces to the first pull rod (15), a plurality of notches are formed in one end, connected with the buffer main body (13), of each first pull rod (15), the notches correspond to the accommodating grooves one by one, and the notches and the accommodating grooves fix the buffer main body (13); one end of the first pull rod (15) far away from the buffer is in a round table shape, and the first pull rod (15) is connected with the crushing device (3) through the clamping ring (5); one side of the shell (12) far away from the accommodating groove is provided with a circular step structure, the shell (12) is connected with the rotating shaft (11) through bolts, and one end of the rotating shaft (11) is connected with the mounting seat (10).
3. A railway vehicle connection with a convex cone according to claim 2, wherein,
The fixing device is a fastening nut (42), and a thread is formed at one end of the connector body (41) far away from the convex cone (24) and is used for installing the fastening nut (42); the air duct connector (4) further comprises a sealing element (45), wherein the sealing element (45) is arranged between the positioning sleeve (44) and the fixing sleeve (46) and is used for sealing the joint of the air duct and the positioning sleeve (44).
4. A railway vehicle connection with a convex cone according to claim 1, wherein,
One end of the crushing tube (38) is a circular tube, and is arranged on a boss of the guide pull rod (39) through interference fit, and the other end of the crushing tube is a bell mouth, so that the pressure tube (31) and the pressure cone (36) can be conveniently pressed into the crushing tube (38); the contact end surface of the crushing tube (38) and the pressure tube (31) adopts a conical mouth, and the conical surface of the pressure cone (36) is arranged on the conical mouth of the crushing tube (38).
5. A railway vehicle connection with a convex cone according to claim 1, wherein,
A long assembly process observation hole is formed in the pressure pipe (31), and the position of the locking groove of the fixing nut (35) is observed through the observation hole.
6. A railway vehicle connection with a convex cone according to claim 1, wherein,
The crush tube (38) is a thin-walled member that absorbs energy by plastic deformation.
7. A vehicle body connection comprising a rail vehicle connection device with a convex cone as claimed in any one of claims 1 to 6, characterized in that,
The damping device (1) is placed in the damping buffer system of the vehicle body connecting piece, the damping buffer system comprises a buffer device (1) and a crushing device (3), a first clamping ring and a second clamping ring are respectively installed on two sides of the crushing device (3), the first clamping ring is connected with a connecting structure (2), the connecting structure (2) is connected with the crushing device (3), one end of the buffer device (1) is connected with the crushing device (3), the second clamping ring is connected with the other end of the buffer device (1), the other end of the buffer device (1) is connected with an installation seat (10), and a buffer support (14) is installed on the lower end face of one side of the buffer device (1) close to the crushing device (3).
8. A railway vehicle comprises a plurality of sections of vehicle bodies, and is characterized in that,
The vehicle bodies are connected by the vehicle body connecting member as claimed in claim 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111340618.9A CN113911163B (en) | 2021-11-12 | 2021-11-12 | Railway vehicle connecting device with convex cone, vehicle body connecting piece and railway vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111340618.9A CN113911163B (en) | 2021-11-12 | 2021-11-12 | Railway vehicle connecting device with convex cone, vehicle body connecting piece and railway vehicle |
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| CN113911163B true CN113911163B (en) | 2024-06-07 |
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| CN102343918A (en) * | 2011-07-12 | 2012-02-08 | 青岛四方车辆研究所有限公司 | Inner breaking type buffer device for rail vehicle |
| CN103010250A (en) * | 2012-12-11 | 2013-04-03 | 青岛四方车辆研究所有限公司 | Integrated crushing buffer device |
| WO2013134920A1 (en) * | 2012-03-13 | 2013-09-19 | 青岛四方车辆研究所有限公司 | Internal pull-to-break type buffer device for rail vehicle |
| CN105083317A (en) * | 2015-07-24 | 2015-11-25 | 南车青岛四方机车车辆股份有限公司 | Car coupler assembly and rail car with same |
| CN216301080U (en) * | 2021-11-12 | 2022-04-15 | 成都肯耐特轨道交通装备有限公司 | Rail vehicle connecting device with convex cone, vehicle body connecting piece and rail vehicle |
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2021
- 2021-11-12 CN CN202111340618.9A patent/CN113911163B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343918A (en) * | 2011-07-12 | 2012-02-08 | 青岛四方车辆研究所有限公司 | Inner breaking type buffer device for rail vehicle |
| WO2013134920A1 (en) * | 2012-03-13 | 2013-09-19 | 青岛四方车辆研究所有限公司 | Internal pull-to-break type buffer device for rail vehicle |
| CN103010250A (en) * | 2012-12-11 | 2013-04-03 | 青岛四方车辆研究所有限公司 | Integrated crushing buffer device |
| CN105083317A (en) * | 2015-07-24 | 2015-11-25 | 南车青岛四方机车车辆股份有限公司 | Car coupler assembly and rail car with same |
| CN216301080U (en) * | 2021-11-12 | 2022-04-15 | 成都肯耐特轨道交通装备有限公司 | Rail vehicle connecting device with convex cone, vehicle body connecting piece and rail vehicle |
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| CN113911163A (en) | 2022-01-11 |
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Effective date of registration: 20221213 Address after: 215600 No. 38, Xionghua Road, Hengjing village, Tangqiao town, Zhangjiagang City, Suzhou City, Jiangsu Province Applicant after: Jiangsu Kenaite Rail Equipment Technology Co.,Ltd. Address before: 610000 No. 319, Xingye Avenue, East Industrial Zone, Xindu District, Chengdu, Sichuan Applicant before: Chengdu kenaite Rail Transit Equipment Co.,Ltd. |
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