CN114162167A

CN114162167A - Connecting device

Info

Publication number: CN114162167A
Application number: CN202111322671.6A
Authority: CN
Inventors: 王维平; 苏利杰; 郑鹏
Original assignee: CRRC Yangtze Transportation Equipment Group Co Ltd
Current assignee: CRRC Yangtze Transportation Equipment Group Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-03-11
Anticipated expiration: 2041-11-09
Also published as: CN114162167B

Abstract

The invention discloses a connecting device, which belongs to the technical field of automobile trains and comprises a connecting component, a bearing vehicle and a bearing saddle for connecting with a rear semi-trailer, wherein the bearing vehicle is provided with the bearing saddle for connecting with the rear semi-trailer, the connecting component comprises a connecting arm, a connecting seat, a movable core head and an inductor, the connecting seat, the connecting arm and the bearing vehicle are sequentially arranged along a first direction, the first end of the connecting arm is fixedly connected to the bearing vehicle, and the second end of the connecting seat is provided with a positioning cavity; the movable core is arranged on the connecting seat, and when the second end of the connecting arm is inserted into the positioning cavity of the connecting seat, the movable core is operatively inserted into or separated from the connecting hole of the connecting arm. The operation process can be completed only by a driver in a cab, the operation is simple, the operator does not need to guide backing outside the vehicle, and the hooking and unhooking efficiency is improved.

Description

Connecting device

Technical Field

The invention belongs to the technical field of automobiles and trains, and particularly relates to a connecting device.

Background

The automobile train is a train set consisting of a tractor and more than one semi-trailer, and has the advantages of high cargo transportation quality and low cost, so that the super-long truck train is further applied to cargo transportation in a closed environment.

However, two adjacent trailers in the current truck train have the problems of difficult alignment, difficult hooking and unhooking operation, low efficiency and the like in the process of hooking, and usually another person outside the train is required to command the trailers, so that a driver in the train can complete the task by matching with backing; meanwhile, when the vehicle is hung and hung off, the semitrailer positioned at the rear is completely positioned in a blind field of vision of a driver, and great safety risks are brought to ground matching personnel.

Disclosure of Invention

In order to solve the technical problems, the invention provides a connecting device which can conveniently and quickly realize the hanging and the releasing of two semitrailers, improves the connecting efficiency and is safe and risk-free.

The technical scheme of the invention is as follows:

the invention provides a connecting device for connecting two adjacent semitrailers in a motor train, which comprises a connecting component, a bearing vehicle and a bearing saddle for connecting the semitrailer at the rear, wherein the connecting component comprises a connecting arm, a connecting seat, a movable core head and an inductor, wherein:

the connecting seat, the connecting arm and the bearing vehicle are sequentially arranged along a first direction, the connecting seat and the connecting arm are respectively provided with a first end and a second end which are oppositely arranged along the first direction, the first end of the connecting seat is connected to a semitrailer in front, the second end of the connecting seat is provided with a positioning cavity with an opening facing the connecting arm, the first end of the connecting arm is fixedly connected to the bearing vehicle, the second end of the connecting arm is provided with a connecting hole, the connecting hole of the connecting arm is arranged in a through manner along a second direction, the second end of the connecting arm can extend into the positioning cavity of the connecting seat, and the sensor used for confirming the position of the second end of the connecting arm is arranged in the positioning cavity of the connecting seat;

the movable core print is arranged on the connecting seat, the movable core print can operably reciprocate along the second direction, and when the second end of the connecting arm extends into the positioning cavity of the connecting seat, the movable core print can be operably inserted into or separated from the connecting hole of the connecting arm;

the first direction is the length direction of the semitrailer, and the second direction is perpendicular to the first direction;

the bearing saddle is fixedly arranged on the bearing vehicle.

Furthermore, the connecting seat is internally provided with a first limiting hole which is arranged along the second direction and communicated with the positioning cavity of the connecting seat, the movable core head is provided with a first end and a second end which are oppositely arranged along the second direction, the first end of the movable core head is arranged in the first limiting hole of the connecting seat, the first end of the movable core head and the first limiting hole of the connecting seat form a telescopic cavity, the connecting seat is provided with an air inlet and an air outlet which are communicated with the telescopic cavity, and the second end of the movable core head can be operatively inserted into or separated from a connecting hole of a connecting arm in the first limiting hole of the connecting seat.

Further, coupling assembling includes the edge reset spring that the second direction set up, the connecting seat is provided with the spacing hole of second, the first spacing hole of connecting seat, the spacing hole of second and the location chamber communicate in proper order, the spacing hole of second of connecting seat is in the size of first direction is greater than the size of first spacing hole to form first step face of resetting, the outside of removing the core print has the second step face of resetting, the first step face of resetting of connecting seat and the second step face of resetting of removing the core print set up relatively, reset spring set up in the spacing downthehole of second of connecting seat, reset spring's both ends are used in respectively the first step face of resetting of connecting seat with on the second step face of resetting of removing the core print.

Further, coupling assembling still includes the gear shaft, rotatable the setting of gear shaft is in on the connecting seat, the first end outside of removing the core has along the rack that the second direction set up, the gear shaft with the rack meshing is connected.

Further, the size of the positioning cavity of the connecting seat along the second direction is sequentially increased along the direction from the connecting seat to the connecting arm.

Furthermore, the second end of the connecting seat is provided with two oppositely arranged guide plates, and the distance between the two guide plates is sequentially increased along the direction from the first end to the second end of the connecting seat.

Further, the device still includes runner assembly, runner assembly includes first festival fork, second festival fork and cross, first festival fork with the second festival fork all has two fork feet, the cross has primary shaft and secondary shaft, the primary shaft level sets up, the yoke of first festival fork is fixed to be set up, two fork feet of first festival fork with the both ends of the primary shaft of cross are connected, two fork feet of second festival fork with the secondary shaft both ends of cross are articulated, the yoke of second festival fork with the first end fixed connection of connecting seat.

Furthermore, the first shaft both ends are provided with the connecting key, be provided with on two fork feet of first festival fork with corresponding two connecting key complex spread grooves of first shaft, two connecting keys of first shaft set up in corresponding in two spread grooves of first festival fork, the width of two connecting keys of first shaft is less than the width of the spread groove of first festival fork.

Further, the bearing vehicle is provided with two follow-up axles.

The beneficial effects of the invention at least comprise:

the invention provides a connecting device which is used for connecting two adjacent semitrailers in a motor train. The rear end of each front semi-trailer can be connected with the first end of a connecting seat, the rear semi-trailer is inserted into a bearing saddle of the bearing vehicle, when the front semi-trailer and the rear semi-trailer are required to be hung, a driver backs up in a cab, the front semi-trailer backs up, the central lines of the front semi-trailer and the rear semi-trailer are kept to be positioned on the same line, the connecting seat of the front semi-trailer moves towards a connecting arm on the bearing vehicle, the second end of the connecting arm enters a positioning cavity of the connecting seat, under the guiding action of the side wall of the positioning cavity of the connecting seat, the second end of the connecting arm moves along the positioning cavity of the connecting seat until reaching the bottom of the positioning cavity of the connecting seat, the second end of the connecting arm touches an inductor, the driver receives a touch signal in the cab, so that a movable core head extends out and is inserted into a connecting hole of the connecting arm, and the connection of the front semi-trailer and the rear semi-trailer is completed; when the hanging needs to be released, the movable core head is retracted to leave the connecting hole of the connecting arm, and the hanging is released; the operation process can be completed only by a driver in a cab, the operation is simple, the operator does not need to guide backing outside the vehicle, and the hooking and unhooking efficiency is improved; meanwhile, potential safety hazards do not exist.

Drawings

FIG. 1 is a schematic structural diagram of a connecting device according to the present embodiment;

FIG. 2 is a schematic view of the rotating assembly and coupling assembly of FIG. 1;

FIG. 3 is a cross-sectional view of the rotating assembly and the coupling assembly;

FIG. 4 is a front view of the connection assembly;

FIG. 5 is a schematic view of a moving core print;

FIG. 6 is a schematic three-dimensional structure of the rotating assembly;

FIG. 7 is a schematic view of a first yoke;

FIG. 8 is a schematic structural view of a cross;

figure 9 is a schematic view of the structure of the load-bearing saddle.

Description of reference numerals:

100-bearing vehicle, 110-follow-up axle;

200-connecting component, 210-connecting arm, 211-connecting hole; 220-a connecting seat, 221-a positioning cavity, 222-a first limiting hole, 223-a second limiting hole, 224-a first step resetting surface, 230-a movable core print and 231-a second step resetting surface; 240-inductor, 250-gear shaft, 260-rack, 270-guide plate, 280-return spring;

300-rotating component, 310-first yoke, 311-connecting groove, 320-second yoke, 330-cross shaft, 331-connecting key;

400-load-bearing saddle.

Detailed Description

In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.

Fig. 1 is a schematic structural view of a coupling device according to the present embodiment, fig. 2 is a schematic structural view of a rotating assembly and a coupling assembly shown in fig. 1, fig. 3 and 4 are schematic structural views of a coupling assembly, and in combination with fig. 1 to 4, an embodiment of the present invention provides a coupling device for coupling two adjacent semitrailers in a train of automobiles, the device including a coupling assembly 200, a vehicle 100, and a load-bearing saddle 400 coupled to a rear semitrailer.

The connecting assembly 200 includes a connecting arm 210, a connecting seat 220, a movable core 230 and a sensor 240, the connecting seat 220, the connecting arm 210 and the carrying vehicle 100 are sequentially arranged along a first direction, wherein the connecting arm 210 and the connecting seat 220 both have a first end and a second end oppositely arranged along the first direction, the first end of the connecting seat 220 is connected to a front semi-trailer, the second end of the connecting seat 220 is provided with a positioning cavity 221 with an opening facing the connecting arm 210, the first end of the connecting arm 210 is fixedly connected to the carrying vehicle 100, in addition, the second end of the connecting arm 210 is provided with a connecting hole 211, the connecting hole 211 of the connecting arm 210 is arranged in a penetrating manner along a second direction, the second end of the connecting arm 210 can extend into the positioning cavity 221 of the connecting seat 220, and the sensor 240 for confirming the position of the second end of the connecting arm 210 is arranged in the positioning cavity of the connecting seat 220. The movable core 230 is disposed on the coupling holder 220, the movable core 230 is operable to reciprocate in a second direction, the second end of the movable core 230 is operable to be inserted into or removed from the coupling hole 211 of the coupling arm 210 when the second end of the coupling arm 210 is inserted into the positioning cavity 221 of the coupling holder 220, the first direction is a length direction of the semitrailer, and the second direction is perpendicular to the first direction.

The rear end of each front semi-trailer can be connected with the first end of the connecting seat 220, the rear semi-trailer is inserted into the bearing saddle 400 of the bearing vehicle 100, when the front semi-trailer and the rear semi-trailer are required to be hung, a driver backs up in a cab, the front semi-trailer backs up, the center lines of the front semi-trailer and the rear semi-trailer are kept to be positioned on the same line, the connecting seat 220 of the front semi-trailer moves towards the connecting arm 210 on the bearing vehicle 100, the second end of the connecting arm 210 enters the positioning cavity 221 of the connecting seat 220, the second end of the connecting arm 210 moves along the positioning cavity 221 of the connecting seat 220 until reaching the bottom of the positioning cavity 221 of the connecting seat 220, the second end of the connecting arm 210 touches the sensor 240, and the driver receives a touch signal in the cab, so that the movable core 230 extends out and is inserted into the connecting hole 211 of the connecting arm 210, and the connection of the front semi-trailer and the rear semi-trailer is completed; when the hanging needs to be released, the movable core print 230 retracts to leave the connecting hole 211 of the connecting arm 210, and the releasing is finished; the operation process can be completed only by a driver in a cab, the operation is simple, the operator does not need to guide backing outside the vehicle, and the hooking and unhooking efficiency is improved.

Preferably, the second direction may be a vertical direction.

Specifically, referring to fig. 4, in the present embodiment, the connecting base 220 has a first position-limiting hole 222 disposed therein along the second direction and communicated with the positioning cavity 221 of the connecting base 220, the movable core 230 has a first end and a second end disposed oppositely along the second direction, the first end of the movable core 230 is disposed in the first position-limiting hole 222 of the connecting base 220, the first end of the movable core 230 and the first position-limiting hole 222 of the connecting base 220 form a telescopic cavity, the connecting base 220 is provided with an air inlet and an air outlet communicated with the telescopic cavity, and the second end of the movable core 230 is operatively inserted into or separated from the connecting hole 211 of the connecting arm 210 located in the first position-limiting hole 222 of the connecting base 220.

The air inlet arranged on the telescopic cavity can be used for adding compressed air, and the air outlet can be used for discharging air, so that the pressure of the telescopic cavity is increased or reduced, the telescopic cavity pushes the movable core print 230 to move, and the movable core print 230 is inserted into or separated from the connecting hole 211 of the connecting arm 210 positioned in the positioning cavity 221. Specifically, the air inlet and the air outlet of the connecting seat 220 may be respectively connected to a valve operable to be opened and closed to allow air to enter and exit the flexible chamber, where the air may be selected as air, and the device for providing an air source may be placed on the carrier vehicle.

Preferably, in this embodiment, the center line of the connection hole 211 of the connection arm 210 may be vertically disposed, and accordingly, the first end of the moving core 230 faces upward and the second end of the moving core faces downward.

With reference to fig. 4, in order to improve the reset effect when the movable core 230 is detached, in this embodiment, the connecting assembly 200 may further include a reset spring 290 disposed along the second direction, wherein a second limiting hole 223 is disposed in the connecting base 220, the first limiting hole 222, the second limiting hole 223 and the positioning cavity 221 of the connecting base 220 are sequentially communicated, the size of the second limiting hole 223 of the connecting base 220 in the first direction is greater than that of the first limiting hole to form a first stepped reset surface 224, the middle portion of the movable core 230 in the second direction has a second stepped reset surface 231, the first stepped reset surface 224 of the connecting base 220 is disposed opposite to the second stepped reset surface 231 of the movable core 230, and two ends of the reset spring 290 respectively act on the first stepped reset surface 224 of the connecting base 220 and the second stepped reset surface 231 of the movable core 230. When the movable core head 230 is pulled to return, the telescopic cavity is compressed and the return spring 290 is pulled to return; the return spring 290 may be provided in plural, for example, two, or three, as required; of course, the return spring 290 may also be sleeved outside the movable core print 230, one end of the return spring 290 is connected to the first step reset surface 224 of the connecting seat 220, the first step reset surface 224 of the connecting seat 220 is annularly disposed, the other end of the return spring 290 is fixedly connected to the middle portion of the movable core print 230, and the specific connection mode between the return spring 290 and the connecting seat 220 and the movable core print 230 may be adjusted as required without specific limitation.

Referring to fig. 4 and 5, in the present embodiment, the connecting assembly 200 may further include a gear shaft 250, the gear shaft 250 may be rotatably disposed on the connecting base 220, a rack 260 disposed along the second direction is disposed outside the first end of the moving core 230, and the gear shaft 250 is engaged with the rack 260. When the automatically controlled telescopic cavity has a fault, the gear shaft 250 can be manually rotated, the gear shaft 250 is in meshed transmission with the rack 260, the movable core print 230 is separated from or inserted into the connecting hole 211 of the connecting arm 210, a rotating handle can be arranged on the gear shaft 250 at the moment, and the specific implementation can be flexibly adjusted according to the needs without limitation.

Preferably, referring to fig. 4, in this embodiment, the size of the positioning cavity 221 of the connecting seat 220 in the second direction increases in sequence along the direction from the connecting seat 220 to the connecting arm 210, so as to form a horn opening structure, so that the connecting arm 210 can easily enter the positioning cavity 221 of the connecting seat 220, and the connecting arm 210 can be accurately positioned in the positioning cavity 221 under the guiding action of the side wall of the positioning cavity 221.

Preferably, in order to make the second end of the connecting arm 210 enter the positioning cavity 221 of the connecting seat 220 more smoothly, in this embodiment, the second end of the connecting seat 220 has two oppositely-arranged guide plates 270, and the distance between the two guide plates 270 increases in the direction from the first end to the second end of the connecting seat 220. The guide plates 270 may be connected to the connecting seat 220 by welding, and in practice, the two guide plates 270 may be disposed vertically and oppositely, or may be disposed horizontally and oppositely, and are not limited specifically. In order to improve the guide effect, the number of the guide plates 270 may be more than two, for example, 4, and one end of each guide plate 270 is connected to the second end of the coupling holder 220 and the other end of each guide plate 270 is disposed away from the center line of the positioning cavity 221 of the coupling holder 220.

Fig. 6 to 8 are schematic structural diagrams of a rotating assembly, and in combination with fig. 6 to 8, in this embodiment, the apparatus may further include a rotating assembly 300, where the rotating assembly 300 includes a first yoke 310, a second yoke 320 and a cross 330, each of the first yoke 310 and the second yoke 320 has two yoke legs, the cross 330 has a first shaft and a second shaft, the first shaft may be horizontally disposed, the yoke of the first yoke 310 is fixedly disposed, the two yoke legs of the first yoke 310 are connected to two ends of the first shaft of the cross 330, the two yoke legs of the second yoke 320 are hinged to two ends of the second shaft of the cross 330, and the yoke of the second yoke 320 is fixedly connected to the first end of the connecting seat 220, so as to rotatably connect the first end of the connecting seat 220 to the front semitrailer, so as to implement turning.

Specifically, with reference to fig. 6 to 8, in the present embodiment, the two ends of the first shaft may be provided with connection keys 331, the two prongs of the first shaft 310 are provided with connection grooves 311 engaged with the two connection keys 331 of the corresponding first shaft, the two connection keys 331 of the first shaft are disposed in the two connection grooves 311 of the corresponding first shaft 310, and the width of the two connection keys 331 of the first shaft is smaller than the width of the connection grooves of the first shaft 310. Can make connecting seat 220 rotatory with arbitrary angle along the horizontal direction like this, and connecting seat 220 is along the rotation of vertical direction miniaturation as far as possible, use the central line of the automobile body length direction of first section fork 310 as the initiating line, the biggest angle of connecting seat 220 upwards and downward rotation along vertical direction is 20, the biggest angle of connecting seat 220 rotatory to automobile body both sides along the horizontal direction is 90, for driving safety, the biggest angle of connecting seat 220 rotatory to automobile body both sides along the horizontal direction is all preferred 35, the device has the advantages of simple structure, convenient operation, high safety, and the like. The vertical rotation of the connecting base 220 is limited to a very small range, and can be adapted to the connecting arm 210, so that the connecting arm 210 can be easily inserted into the bell mouth of the positioning cavity 221 of the connecting base 220; if the rotation angle of the connecting seat 220 in the horizontal direction is too large, the first end of the connecting arm 210 is very easy to contact with the outer sidewall of the connecting seat 220 and is difficult to enter the positioning cavity 221; in addition, the rotation of the connecting base 220 along the horizontal direction is also beneficial to the turning of the semitrailer.

Preferably, in conjunction with fig. 1, in the present embodiment, the vehicle 100 may have two following axles 110, so as to reduce the turning radius of the train, although three or four may be provided. The follower axle 110 is a structure that is commonly used in motor vehicles and can be flexibly selected in the prior art, and is not limited herein.

Preferably, in this embodiment, load-bearing saddle 100 is attached to load-bearing vehicle 100 by way of a telescoping member. Specifically, bear car 100 upper portion and be provided with the extensible member, bear saddle 100 and set up in the upper end of extensible member, can absorb the impact that the semitrailer walking in-process produced like this, improve the life who bears saddle 100. The telescopic member may be a hydro-pneumatic spring, which is not limited herein.

The load-bearing saddle 100 is a common structure for coupling with a semitrailer, and can be flexibly selected by those skilled in the art according to the needs, and is not limited thereto.

In order to mount the bearing saddle 100, the telescopic member and the like on the bearing vehicle 100, the bearing vehicle may include a supporting structure such as a cross beam and a vertical beam, the connecting arm 210 and the bearing vehicle 100 may be connected by welding, and a bolt connection is suggested for convenient detachment; of course, the connection assembly 200 may be connected to the front semi-trailer by bolts for easy detachment and stable connection, which is not limited herein.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. The utility model provides a connecting device for connect two adjacent semitrailers in the motor train, a serial communication port, the device includes coupling assembling, bears the car and is used for bearing the saddle with the semitrailer at rear connection, coupling assembling includes linking arm, connecting seat, removes core and inductor, wherein:

the bearing saddle is fixedly arranged on the bearing vehicle.

2. The connecting device according to claim 1, wherein the connecting seat has a first limiting hole disposed therein along the second direction and communicating with the positioning cavity of the connecting seat, the movable core has a first end and a second end disposed opposite to each other along the second direction, the first end of the movable core is disposed in the first limiting hole of the connecting seat, the first end of the movable core and the first limiting hole of the connecting seat form a telescopic cavity, the connecting seat is provided with an air inlet and an air outlet communicating with the telescopic cavity, and the second end of the movable core is operatively inserted into or removed from the connecting hole of the connecting arm located in the first limiting hole of the connecting seat.

3. The connecting device according to claim 2, wherein the connecting assembly includes a return spring disposed along the second direction, the connecting base is provided with a second limiting hole, the first limiting hole, the second limiting hole and the positioning cavity of the connecting base are sequentially communicated, the size of the second limiting hole of the connecting base in the first direction is larger than that of the first limiting hole to form a first step return surface, the movable core print has a second step return surface along the middle of the second direction, the first step return surface of the connecting base is opposite to the second step return surface of the movable core print, the return spring is disposed in the second limiting hole of the connecting base, and two ends of the return spring respectively act on the first step return surface of the connecting base and the second step return surface of the movable core print.

4. The connecting device of claim 2, wherein the connecting assembly further comprises a gear shaft rotatably disposed on the connecting base, the first end of the moving core is provided with a rack disposed along the second direction, and the gear shaft is engaged with the rack.

5. A connecting device according to claim 1, wherein the size of the positioning cavity of the connecting section in the second direction increases in sequence along the direction from the connecting section to the connecting arm.

6. The connecting device of claim 1, wherein the second end of the connecting socket has two oppositely disposed guide plates, and the distance between the two guide plates increases in the direction from the first end to the second end of the connecting socket.

7. A connection device according to any one of claims 1 to 6, further comprising a rotation assembly, the rotation assembly comprising a first yoke, a second yoke and a cross, the first yoke and the second yoke each having two yoke legs, the cross having a first shaft and a second shaft, the first shaft being horizontally disposed, the yoke of the first yoke being fixedly disposed, the two yoke legs of the first yoke being connected to both ends of the first shaft of the cross, the two yoke legs of the second yoke being hingedly connected to both ends of the second shaft of the cross, the yoke of the second yoke being fixedly connected to the first end of the connection base.

8. The connecting device as claimed in claim 7, wherein the first shaft is provided with connecting keys at two ends thereof, the two prongs of the first shaft are provided with connecting grooves for matching with the corresponding two connecting keys of the first shaft, the two connecting keys of the first shaft are arranged in the corresponding two connecting grooves of the first shaft, and the width of the two connecting keys of the first shaft is smaller than that of the connecting grooves of the first shaft.

9. A connection arrangement according to claim 7, characterised in that the vehicle has at least two trailing axles.

10. An attachment device according to claim 9, wherein the load-bearing saddle is attached to the vehicle by means of a telescopic member.