WO2020133309A1 - Auxiliary coupling device for transition coupler, transition coupler for rail vehicle, and rail vehicle - Google Patents

Abstract

An auxiliary coupling device (100) for a transition coupler, comprising: a rotary hook assembly (110) comprising a cylinder (111) and a plurality of auxiliary hooks (112a, 112b); a support (120) comprising a first through-hole (121) and second through holes (122a, 122b); a rotary shaft (130) comprising a shaft body (131) and a positioning groove (132); and a locking mechanism (140) provided within the second through holes (122a, 122b) of the support (120) and pressing against the rotary shaft (130); the locking mechanism (140) has a base portion fixedly connected to the second through holes (122a, 122b) and a positioning portion capable of reciprocating in a radial direction relative to the base portion; when in a locking position, the positioning portion presses against the positioning groove (132), and when in an unlocking position, the positioning portion presses against the shaft body (131), and when switching from the locked position to the unlocked position, the rotary hook assembly (110) is applied with a force not less than a preset value, and the rotary shaft (130) linked to the rotary hook assembly pushes, from the positioning groove (132), the positioning portion of the locking mechanism (140) so as to press against the shaft body (131). The auxiliary coupling device is reliable and easy to switch. Also disclosed are a transition coupler for a rail vehicle, and a rail vehicle.

Description

Auxiliary continuous hanging device for transition coupler, transition coupler for rail vehicle and rail vehicle Technical field

The present application relates to the technical field of couplers for rail vehicles, and in particular to a device that assists in realizing the coupling of transition couplers and couplers at the front end of an EMU.

Background technique

The transition coupler is usually used to connect the transported vehicle and the power locomotive. It is an important device for vehicle shunting, train return and rescue. In the field of high-speed EMUs, inter-city EMUs and urban rail vehicles, transition couplers of close-coupled automatic couplers are commonly used.

At present, due to the different technical configurations adopted by domestic EMUs, the models of front-end automatic couplers equipped with different models are not uniform, and the shapes of the connecting panels are also different, so the use of transition couplers has great limitations.

In one type of solution, the transition coupler is equipped with different auxiliary hook-up devices, so that it can rotate to switch the auxiliary hook, for example, a type of auxiliary hook-up device for transition couplers disclosed in patent application CN104129401A, which The hook is formed integrally with the positioning cylinder. The positioning cylinder cuts a plane under the hook, and the distance from the plane to the center of the cylinder is less than the radius of the cylinder. An elastic elastic sheet is fixed on the side of the auxiliary hook mounting seat, and the convex part of the head is pressed against the positioning cylinder. When the pressing part moves from the positioning cylindrical plane to the cylindrical surface, the shrapnel needs to overcome the elastic force and recline. Therefore, unless the external force intervenes, the positioning cylinder will be fixed on the flat surface and will not rotate easily. Various types of auxiliary hooks correspond to the positioning plane one by one, thereby achieving the positioning of the auxiliary hooks.

As an external cantilever mounting structure, the shortcomings of the locking device in this solution are: First, the locking spring is pressed against the connecting column only by the elastic force of one end of it, which is limited by its cantilever mounting structure. In fact, the locking springs that can be actually used have a relatively small locking elasticity, and with the increase in the number of use or time, the locking springs are more likely to produce outward deformation, and the reliability of the locking positioning will become worse and worse, unable to ensure The reliability and safety of the auxiliary hook device. Second, the locking device formed by the locking dome and the fastener is arranged outside the support and the connecting column, which is susceptible to the influence and interference of the external environment, which affects its locking positioning effect, and also needs to be occupied relatively Large space, the structure is not compact; third, the shrapnel manufacturing process is complex and the assembly accuracy is high. The shrapnel needs to use a material with high elasticity and heat treatment, and its distance from the positioning cylinder is too close or too far Will affect the effect of locking positioning.

In addition, the disadvantage of the integrally designed auxiliary hook in this solution is that when the auxiliary hook is damaged or other types of hooks need to be replaced to adapt to different front-end couplers, the entire set of auxiliary hook devices needs to be removed to integrate the auxiliary hooks on it. After replacement, re-assemble, debug and locate the device.

Summary of the invention

In view of this, the present application provides an auxiliary coupling device for transition couplers and transition couplers for rail vehicles, thereby effectively solving or at least alleviating one or more of the above problems and other problems in the prior art .

According to an aspect of the present application, there is provided an auxiliary coupling device for a transition coupler, which includes: a rotary hook assembly including a column body and a plurality of auxiliary hooks provided along the circumferential direction of the column body, the auxiliary hook A hook for connecting a front end of a rail vehicle; a support, which includes a first through-hole penetrating the support in the axial direction, and extending radially along the support and communicating the first through-hole and the support A second through-hole on the outside; the rotating shaft includes a shaft body and a positioning groove provided along the circumference of the shaft body, the positioning groove is provided corresponding to the second through-hole; the shaft body is inserted in In the first through hole of the support, and connected to the cylinder of the rotary hook assembly, so that the rotary hook assembly is linked with the rotating shaft; and a locking mechanism, which is provided on the second of the support Within the through hole and keep pressing against the rotating shaft; wherein the locking mechanism has a base fixedly connected to the second through hole and a positioning portion capable of reciprocating in the radial direction relative to the base; wherein, In the locked position, the positioning portion presses against the positioning groove; in the non-locked position, the positioning portion presses against the shaft body; when switching from the locked position to the non-locked position, the rotary hook A force of not less than a preset value is applied to the assembly, and the rotating shaft linked thereto causes the positioning portion of the locking mechanism to be pushed out from the positioning groove to press against the shaft body.

Optionally, the base portion includes a sleeve having an opening at one end; and the positioning portion includes an elastic element and a locking member placed in the sleeve; wherein, the elastic element presses against the locking member so that The locking member bears the force of movement toward the opening of the sleeve to press the shaft body; in the locked position, the locking member presses the positioning groove; in the non-locked position, The locking member presses against the shaft body.

Optionally, the sleeve has external threads, and the second through hole has internal threads; the sleeve and the second through hole are connected by threads.

Optionally, the base portion includes a fastening bolt; the positioning portion includes an elastic element and a locking piece, and the second through-hole has an internal thread; wherein, the fastening bolt passes through the second through-hole Threaded connection, the elastic element respectively presses the fastening bolt and the locking piece, so that the locking piece moves toward the shaft body; in the locked position, the locking piece presses the Locating groove; in the non-locking position, the locking piece presses against the shaft body.

Optionally, the elastic element is a coil spring or a butterfly spring.

Optionally, the elastic element is a non-metallic elastic element.

Optionally, the locking member is a ball or a cylinder provided with a wedge surface at one end facing the positioning groove.

Optionally, further comprising: an internally threaded column, which is arranged between the rotary hook assembly and the support in the axial direction; wherein, one end of the shaft body of the rotating shaft is screwed to the internally threaded column, and The cylinder body connected to the rotary hook assembly via the internally threaded column makes the rotary hook assembly and the rotating shaft interlock via the internal threaded column.

Optionally, a compression bolt is further included, and the cylinder of the rotary hook assembly is provided with a connection hole penetrating in the axial direction; the compression bolt is connected to the internally threaded column via the connection hole of the cylinder.

Optionally, the column has a plurality of auxiliary hook setting points at predetermined angular intervals in the circumferential direction, and the number of the auxiliary hooks corresponds to or is less than the number of connection points of the auxiliary hook setting points.

Optionally, the preset angle is 90° or 180°.

Optionally, the number of the positioning grooves corresponds to the number of the setting points of the auxiliary hooks.

Optionally, when a plurality of positioning grooves are provided on the rotating shaft, and a plurality of second through holes are provided on the support, the plurality of positioning grooves correspond to the plurality of second through holes in sequence, the The locking mechanism is pressed into one of the positioning grooves, and one of the auxiliary hooks in the rotary hook assembly is in the hooking position.

According to another aspect of the present application, there is also provided a transition coupler for a rail vehicle, characterized by comprising: a transition coupler body and the auxiliary coupling device for the transition coupler as described above, the auxiliary coupling device for the transition coupler The support is welded to the transition coupler body.

According to yet another aspect of the present application, there is also provided a rail vehicle, which includes the rail vehicle transition coupler as described above.

According to the auxiliary coupling device for transition couplers of the present application, the transition coupler for rail vehicles and the rail vehicle, through the configuration of the locking mechanism and the rotating shaft, when the auxiliary hook is rotated to the use position, the locking member enters the positioning groove to lock the rotating shaft, and The entire rotary hook assembly is locked so that the auxiliary hook can be hooked in a relatively stable state. If you need to switch auxiliary hooks or temporarily do not need to use any auxiliary hooks, you can apply a certain external force to push the rotary hook assembly. When the external force is large enough to push the locking member out of the positioning groove, the shaft will continue to rotate until it is locked The piece is docked with another positioning slot. Thus, an auxiliary coupling device for transition couplers with reliable locking and easy switching is provided, and the manufacturing process of each component is simple, easy to obtain, and easy to maintain. In addition, the entire locking mechanism is hidden in the auxiliary hook mounting seat, which has a compact structure, and the locking positioning will not be interfered or affected by the external environment. The locking is more reliable, and the accuracy and safety of the manual coupling operation of the transition coupler is improved , And has significant dust and rust prevention effects.

BRIEF DESCRIPTION

FIG. 1 is a schematic perspective view of an embodiment of an auxiliary coupling device for a transition coupler of the present application.

2 is a schematic cross-sectional view along an upright plane of an embodiment of an auxiliary hook-up device for a transition coupler of the present application.

FIG. 3 is a schematic cross-sectional view of an embodiment of an auxiliary coupling device for a transition coupler of the present application, along a horizontal plane.

4 is a schematic perspective view of an embodiment of a transition coupler of a rail vehicle of the present application.

FIG. 5 is a schematic diagram of an embodiment of a rail vehicle transition coupler of the present application, wherein the auxiliary hook 112a is in a hooking position.

FIG. 6 is a schematic diagram of an embodiment of a rail vehicle transition coupler of the present application, in which the auxiliary hook 112b is in a hooking position.

DESCRIPTION OF REFERENCE NUMERALS

100	Auxiliary continuous hanging device for transition coupler
110	Rotating hook assembly
111	Cylinder
112a, 112b	Auxiliary hook
113	Connection hole
120	Support
121	First through hole
122a, 122b	Second through hole
130	Hinge
131	Shaft
132	Locating slot
140	Locking mechanism
141	Sleeve
142	Elastic element
143	Locking piece (ball)
150	Internal threaded column
160	Hold down bolt
200	Rail vehicle transition coupler
210	Transition coupler body

detailed description

According to the concept of the present application, an embodiment of an auxiliary coupling device for a transition coupler is described here with reference to FIGS. 1 to 3. The auxiliary coupling device 100 for a transition coupler includes a rotary hook assembly 110, a support 120, a rotating shaft 130, and a locking mechanism 140. First, the entire transition coupler auxiliary hook-up device 100 is welded to the hook body of the transition coupler 200 through the support 120, and then the rotation shaft is locked and unlocked by the locking mechanism 140 to control its movement or locking, and then the movement is transmitted through the rotation shaft The auxiliary hook is switched between the hooked position and the non-hooked position, and the reliable locking and convenient unlocking at the hooked position are realized.

Specifically, the rotary hook assembly 110 has a column 111 and a plurality of auxiliary hooks 112a, 112b provided along the circumference of the column 111. The auxiliary hooks 112a, 112b have different models or specifications for hooking the rail Different types of couplers at the front of the vehicle. The support 120 includes a first through-hole 121 penetrating the support 120 in the axial direction and a plurality of second through- holes 122 a and 122 b extending radially along the support 120 and communicating the first through-hole 121 and the outer side of the support 120, so that Corresponding parts pass through these holes. The rotating shaft 130 includes a shaft body 131 and a positioning groove 132 provided along the circumferential direction of the shaft body 131, and the positioning groove 132 is provided corresponding to the second through holes 122a and 122b. In addition, the shaft body 131 of the rotating shaft 130 is inserted into the first through hole 121 of the support 120 and can be directly or indirectly connected to the column 111 of the rotating hook assembly, so that the rotating hook assembly 110 and the rotating shaft 130 are linked, that is The rotating shaft 130 can be rotated by screwing the rotating hook assembly 110, and the rotating hook assembly 110 can also be locked correspondingly by locking the rotating shaft 130. Optionally, the first through-hole 121 can be provided as a T-shaped hole, so that the rotating shaft can be easily assembled in position relative to the support without affecting the relative rotation between the two. The above-mentioned locking mechanism 140 is provided in the second through holes 122 a and 122 b of the support 120, and can keep pressing against the rotating shaft 130. Wherein, the second through holes 122a and 122b can be provided with a structure having internal threads, so that the locking mechanism 140 can be easily assembled in position relative to the second through holes 122a and 122b. Specifically, the locking mechanism 140 has a base portion fixedly connected to the second through holes 122a and 122b, and a positioning portion capable of reciprocating in the radial direction relative to the base portion. Wherein, in the locked position, the positioning portion of the locking mechanism 140 extends radially into the pressing positioning groove 132; in the non-locked position, the positioning portion extends radially into the shaft body 131 against the rotating shaft 130 ; When switching from the locked position to the non-locked position, the rotary hook assembly 110 is screwed, the rotating shaft 130 is applied with a force not less than the preset value, so that the positioning portion is withdrawn from the positioning groove 132 in the radial direction until it is pressed The shaft body 131 of the rotating shaft 130. In this arrangement, through the arrangement of the locking mechanism 140 and the rotating shaft 130, when the auxiliary hooks 112a and 112b are rotated to the use position, the positioning portion enters the positioning groove 132 to lock the rotating shaft 130, thereby locking the entire rotating hook assembly 110, The auxiliary hooks 112a and 112b can be hooked in a relatively stable state, and it is convenient to connect the transition couplers. If you need to switch other suitable types of auxiliary hooks 112a, 112b or temporarily do not need to use any auxiliary hooks 112a, 112b, you can apply a certain external force to push the rotary hook assembly 110, which is equivalent to the rotating shaft 130 linked with the rotary hook assembly 110 is applied External force, when the external force exceeds the preset value of the elastic locking force, that is, large enough to push the positioning portion out of the positioning groove 132, the rotary hook assembly and the rotating shaft 130 can continue to rotate, the rotary hook assembly and the rotating shaft are both in In the unlocked state, until the rotating shaft 130 rotates until the locking mechanism 140 is docked with another positioning groove 132, it enters the locked state again. This provides an auxiliary coupling device 100 for transition couplers with multiple auxiliary hooks 112a, 112b, which is reliable in locking and easy to switch, and the manufacturing process of each component is relatively simple, easy to obtain, and easy to maintain. The entire positioning mechanism is hidden in the auxiliary hook installation seat, which has a compact structure, and the locking positioning will not be interfered and affected by the external environment and facilities. The locking is more reliable, and the safety and accuracy of the manual auxiliary hook operation of the transition coupler are improved, and It has remarkable dustproof and antirust effects.

In the foregoing embodiment, it is mentioned that the positioning grooves are provided correspondingly to the through holes, which is intended to focus on the matching positional relationship between the two, rather than limiting the number of installation requirements. Specifically, on the one hand, the design role of the positioning groove is to provide a corresponding locking or vacant position for the locking mechanism. If a total of N locking positions and vacant positions need to be set, N sets of positioning grooves should be provided correspondingly. Among them, the positioning groove existing in the form of a group can provide a more stable positioning effect. In the case of relatively low positioning effect requirements, each group of positioning grooves may include at least one positioning groove. On the other hand, the design function of the second through holes is to provide space for the locking mechanism. If M locking mechanisms need to be arranged, M second through holes should be provided correspondingly. In addition, the spacing angle between the positioning grooves provided on the rotating shaft needs to have a corresponding relationship with the positioning angle of the second through hole, so that when the rotating shaft rotates, when the second through holes correspond to a group of positioning grooves on the rotating shaft, respectively, the lock The tightening mechanism can realize the cooperation with the positioning groove, thereby rotating the corresponding auxiliary hook to the hooking position or the empty position; thereafter, if the rotation shaft continues to rotate until the second through hole corresponds to another group of positioning grooves on the rotation shaft, Then, the locking mechanism can realize the cooperation with the positioning groove again, thereby rotating the corresponding other auxiliary hook to the hooking position or the empty position.

Of course, in order to provide better positioning effect, the number of locking mechanisms may correspond to the number of positioning slots in each group of positioning slots, but this is not a necessary condition.

Under the teaching of the foregoing principles, as a type of example, when an auxiliary hook is provided, two second through holes spaced 90 degrees apart may be provided on the support, and a positioning groove is correspondingly provided on the shaft body of the rotating shaft . As another example, a second through hole may be provided on the support, and two positioning slots spaced 90 degrees apart from each other on the shaft body of the rotating shaft. More specifically, in combination with FIG. 2 and FIG. 3 in the present application, two second through holes spaced 180 degrees apart may be provided on the support, and correspondingly 4 degrees spaced 90 degrees apart on the shaft body of the rotating shaft Positioning slots.

In addition, on the basis of the foregoing embodiments, the components of the auxiliary coupling device 100 for transition couplers or the connection relationship between them can be modified, or additional components can be added for other purposes. Give an example.

For example, as a specific embodiment of the locking mechanism, it can use a standard part spring ball plug. The base in the spring ball plug may include a sleeve 141 having an opening at one end, and the positioning portion in the spring ball plug includes an elastic element 142 and a ball 143 disposed in the sleeve 141. Among them, as a fastening method between the two, the sleeve 141 has external threads, and the second through holes 122a, 122b have internal threads; the sleeve 141 and the second through holes 122a, 122b are connected by screws. In addition, the elastic element 142 can press the ball 143 so that the ball 143 can bear the force of moving toward the opening of the sleeve 141 to press the shaft 131. Specifically, in the locked position, the elastic element 142 presses the ball 143 against the positioning groove 132, at this time, the rotating shaft and the rotating hook assembly are in a relatively stable state, that is, the auxiliary hook completes switching, and one of the auxiliary hooks is available For hooking, or all auxiliary hooks are vacant. In the non-locking position, the elastic element 142 presses the ball 143 against the shaft body 131. At this time, the rotating shaft and the rotating hook assembly can rotate relative to the locking mechanism until the locking mechanism docks with the next positioning groove on the rotating shaft 132 to perform a new locking action, which also means that a new switch is completed between adjacent auxiliary hooks. In this arrangement, the circumferential positioning of the rotating shaft is only achieved with a plurality of spring ball plugs in the form of standard parts, which effectively simplifies the structure and reduces manufacturing and maintenance costs; and the most critical locking mechanisms are all built-in, the structure is not only compact, and The locking positioning is not interfered and affected by the external environment and facilities, which improves the accuracy and safety of the manual auxiliary hooking operation of the transition coupler, and has better dustproof and rustproof effects, and thus higher reliability.

In addition, although not shown in the figure, as an alternative embodiment of the locking mechanism, its base may include a fastening bolt; and its positioning portion includes an elastic element and a locking member. Wherein, the second through-hole should also have an internal thread, so that the fastening bolt and the second through-hole are connected by screws. In addition, the elastic element respectively presses against the fastening bolt and the locking member, so that the locking member has an urging force to move toward the shaft body to bear against the shaft body. In this arrangement, when the locking mechanism is in the locked position, the locking member presses against the positioning groove; when the locking mechanism is in the non-locking position, the locking member presses against the shaft body.

Alternatively, the ball used in the foregoing embodiment can be replaced with a cylinder having a wedge surface or other similar locking member, wherein the wedge surface should be provided at the end of the cylinder facing the positioning groove, thereby also achieving positioning Slot fit. In addition, specifically, the elastic element may be a coil spring, a butterfly spring, a non-metallic elastic member or other similar elastic parts, so as to realize the function of unlocking or locking. Therefore, based on the foregoing disclosure, in addition to the combined structure of the ball and the coil spring, the locking mechanism used here also has a combined structure with a wedge-shaped cylinder and a butterfly spring, a combined structure with a wedge-shaped cylinder and a coil spring, a ball and a The combined structure of butterfly spring, etc.

Similarly, the locking mechanism has multiple implementations, as long as it includes the base and the positioning portion as described above, wherein the base mainly provides a fixed connection relationship with the second through hole (that is, the support), and the positioning The part has at least a mechanical structure capable of reciprocating back and forth along a fixed direction, which will not be listed one by one here.

On the other hand, as a solution to promote the efficiency of assembly of parts, the auxiliary coupling device 100 for transition couplers may further include an internally threaded post 150. The internally threaded column 150 is disposed between the rotary hook assembly 110 and the support 120 in the axial direction. Wherein, one end of the shaft body 131 of the rotating shaft 130 is screwed to the internally threaded column 150 and connected to the column 111 of the rotary hook assembly 110 via the internally threaded column 150. In such an arrangement, the internally threaded column 150 thus becomes a connecting hub between the shaft body 131 of the rotating shaft 130 and the column 111 of the rotary hook assembly 110, so that the rotary hook assembly 110 and the rotating shaft 130 are linked via the internal threaded column 150.

It is easy to think that the rotary hook assembly 110 and the rotating shaft 130 of the auxiliary coupling device 100 for the transition coupler can also be directly connected, for example, the cylinder 111 is provided with an internal threaded hole, and the external thread of the shaft body is provided with an external thread, between the two Use screw connection to achieve connection

Furthermore, as one of the solutions to improve the applicability of the rotary hook assembly, it can be set as a rotary hook assembly that can be quickly attached and detached. For example, the auxiliary coupling device 100 for a transition coupler may further include a compression bolt 160. At this time, the column 111 of the rotary hook assembly 110 will be correspondingly provided with a connecting hole 113 penetrating in the axial direction. At this time, the compression bolt 160 is connected to the internally threaded column 150 via the connection hole 113 of the column 111, that is, the connection between the rotary hook assembly 110 and the internally threaded column 150 is achieved by the compression bolt 160. At this time, even if the multiple auxiliary hooks on the rotary hook assembly do not meet the corresponding specifications of the transition coupler, the entire set of rotary hook assemblies can be replaced by unscrewing the compression bolt 160 without disassembling and disassembling other parts such as the rotating shaft. The operation is very convenient.

In addition, regarding the rotary hook assembly 110, the cylinder 111 may have a plurality of auxiliary hook setting points at predetermined angular intervals in the circumferential direction, and set it such that the number of auxiliary hooks 112a, 112b corresponds to or is smaller than the auxiliary The number of hook set points. When the number of auxiliary hooks 112a, 112b corresponds to the auxiliary hook setting point, that is, a plurality of auxiliary hooks 112a, 112b of different models are circumferentially spaced apart around the main body portion 111 to be used in a variety of different transition coupler scenarios . When the number of auxiliary hooks 112a and 112b is smaller than the auxiliary hook setting points, that is, several of the auxiliary hook setting points are in an empty state. At this time, the vacant state can be applied to the non-continuous working mode of the transition coupler. As a specific implementation form of this arrangement, the preset angular interval can be 90° or 180°, that is, corresponding to 4, 3, or 2 auxiliary hooks under full load, or reserve a vacant position in another In the state of, corresponding to 3, 2 or 1 auxiliary hook.

On the other hand, the number of positioning grooves 132 on the rotating shaft 130 can be set to correspond to the number of auxiliary hook setting points, thereby making it possible for the auxiliary hook setting point to have its own Lock the position so that the corresponding auxiliary hook can be selected as needed or the vacant state can be selected. It will be understood that in an embodiment, by setting the number of positioning grooves 132 relative to the auxiliary hooks 112, it is possible to reserve at least one or a group of positioning grooves 132 to make the auxiliary hooks empty (that is, the auxiliary hooks are not used to connect the transition coupler status).

In the foregoing embodiments, it is mentioned that the positioning grooves are provided correspondingly to the setting points of the auxiliary hooks, which are intended to focus on the relationship between the positional relationship and the quantity relationship between the two. Specifically, multiple sets of positioning grooves are arranged on the rotating shaft corresponding to the angle of the second through hole. When the rotating shaft rotates, when the locking mechanism in the second through-hole on the support respectively corresponds to a set of positioning grooves on the rotating shaft, an auxiliary hook setting point is obtained, at which an auxiliary hook can be set or left empty . After that, continue to rotate the rotating shaft, and when the locking mechanism in the second through hole corresponds to the next set of positioning grooves on the rotating shaft again, the next auxiliary hook setting point can be obtained.

In addition, as a specific correspondence relationship between the rotary hook assembly, the rotating shaft, the support and the locking mechanism in the moving state, the plurality of positioning grooves 132 on the rotating shaft 130 sequentially correspond to the plurality of second positions on the support 120 When the through holes 122a and 122b are penetrated, the positioning portion of the locking mechanism 140 is pressed into the positioning groove 132, and one of the auxiliary hooks 112a and 112b in the rotary hook assembly 110 is in the installation position.

In addition, referring to FIG. 4, an embodiment of a rail vehicle transition coupler is also provided here. The rail vehicle transition coupler 200 includes: a transition coupler body 210; and the auxiliary coupling device 100 for transition couplers in any of the foregoing embodiments or combinations thereof. Wherein, the transition coupler is welded to the transition coupler body 210 with the support 120 of the auxiliary coupling device 100. As shown in FIG. 2, since the support 120 of the auxiliary coupling device 100 for transition couplers is installed on the transition coupler body 210 at a slope, the left side of the support shown in FIG. 2 is different from the right side. The rail vehicle transition coupler of this arrangement can reliably lock the auxiliary hook to be used by the auxiliary coupling device, thereby achieving a stable connection between the transition couplers. In addition, it has multiple auxiliary hooks 112a, 112b and is easy to switch, so that it can match a variety of rail vehicle front end hooks with different specifications, has a high adaptability range, and is easy to operate.

Continuing to refer to FIGS. 5 to 6, it exemplarily shows two hooking positions of the auxiliary coupling device 100 for a transition coupler mounted on a transition coupler 200 of a rail vehicle. The auxiliary coupler 112a shown in FIG. 5 is in a hooked position, and is stably locked there. When switching is required, the rotary hook assembly can be screwed by applying an external force and then transmitted to the rotating shaft. When the external force applied exceeds a preset value, the beads 143 of the locking mechanism 140 are pushed out of the positioning groove 132 of the rotating shaft. Until it abuts the wall surface of the shaft body of the rotating shaft. Then, the rotating hook assembly can be easily screwed until the bead 143 of the locking mechanism 140 reenters the next positioning groove 132 of the rotating shaft, thereby completing the transition between the transition coupler hook and the unhook state. As shown in FIG. 6, at this time, the auxiliary coupler 112b will be placed in another hooking position, and locked stably here.

In addition, although not shown in the drawings, according to yet another aspect of the present application, an embodiment of a rail vehicle is also provided. The rail vehicle may include the rail vehicle transition coupler in any of the foregoing embodiments or a combination thereof, so it also has the corresponding technical effects brought by the rail vehicle transition coupler.

The above examples mainly illustrate the auxiliary coupling device for transition couplers, transition couplers for rail vehicles and rail vehicles. Although only some of the embodiments of the present application have been described, those of ordinary skill in the art should understand that the present application can be implemented in many other forms without departing from the gist and scope of the application. Therefore, the examples and embodiments shown are to be regarded as illustrative rather than restrictive, and the present application may cover various modifications without departing from the spirit and scope of the present application as defined in the appended claims. And replace.

Claims (15)

1. An auxiliary coupling device for transition couplers is characterized in that it includes:

   A rotary hook assembly, which includes a column and a plurality of auxiliary hooks provided along the circumferential direction of the column, the auxiliary hooks are used to hook up front-end couplers of rail vehicles;

   The support includes a first through hole penetrating the support in the axial direction, and a second through hole extending radially along the support and communicating the first through hole and the outside of the support;

   The rotating shaft includes a shaft body and a positioning groove provided along the circumferential direction of the shaft body, the positioning groove is provided corresponding to the second through hole; the shaft body is inserted in the first of the support In the through-hole and connected to the cylinder of the rotary hook assembly to link the rotary hook assembly with the rotating shaft; and

   A locking mechanism is provided in the second through hole of the support and keeps pressing against the rotating shaft; wherein the locking mechanism has a base fixedly connected to the second through hole and capable of The positioning portion where the base portion reciprocates in the radial direction; wherein, in the locked position, the positioning portion presses against the positioning groove; in the non-locked position, the positioning portion presses against the shaft body; in the locked position When switching to the non-locking position, a force of not less than a preset value is applied to the rotary hook assembly, and the rotating shaft linked thereto causes the positioning portion of the locking mechanism to be pushed out from the positioning groove to press against the shaft body .
2. The auxiliary coupling device for a transition coupler according to claim 1, wherein the base portion includes a sleeve having an opening at one end; and the positioning portion includes an elastic element and a locking member placed in the sleeve; wherein , The elastic element presses against the locking member, so that the locking member withstands the force of movement toward the opening of the sleeve to press the shaft body; in the locked position, the locking The member presses against the positioning groove; in the non-locking position, the locking member presses against the shaft body.
3. The auxiliary coupling device for a transition coupler according to claim 2, wherein the sleeve has an external thread, and the second through-hole has an internal thread; the sleeve and the second through-hole pass through Threaded connection.
4. The auxiliary coupling device for a transition coupler according to claim 1, wherein the base portion includes a fastening bolt; the positioning portion includes an elastic element and a locking member, and the second through hole has an internal thread; Wherein, the fastening bolt and the second through hole are connected by a screw thread, and the elastic element respectively presses the fastening bolt and the locking member to move the locking member toward the shaft body; In the locked position, the locking member presses against the positioning groove; in the non-locked position, the locking member presses against the shaft body.
5. The auxiliary coupling device for a transition coupler according to any one of claims 2 to 4, wherein the elastic element is a coil spring or a butterfly spring.
6. The auxiliary coupling device for a transition coupler according to any one of claims 2 to 4, wherein the elastic element is a non-metallic elastic element.
7. The auxiliary coupling device for a transition coupler according to any one of claims 2 to 4, wherein the locking member is a ball or a cylinder provided with a wedge surface at one end facing the positioning groove.
8. The auxiliary coupling device for a transition coupler according to any one of claims 1 to 4, further comprising: an internally threaded column, which is disposed between the rotary hook assembly and the support in the axial direction; Wherein, one end of the shaft body of the rotating shaft is screwed to the internally threaded column, and is connected to the cylindrical body of the rotating hook assembly via the internally threaded column, so that the rotating hook assembly and the rotating shaft pass through the Internal threaded column linkage.
9. The auxiliary coupling device for a transition coupler according to claim 8, further comprising a compression bolt, and the cylinder of the rotary hook assembly is provided with a connection hole penetrating in the axial direction; the compression bolt passes The connection hole of the column body is connected to the internally threaded column.
10. The auxiliary hook-up device for a transition coupler according to any one of claims 1 to 4, wherein the column has a plurality of auxiliary hook setting points at predetermined angular intervals in the circumferential direction, and the number of the auxiliary hooks The number corresponding to or less than the set point of the auxiliary hook.
11. The auxiliary coupling device for a transition coupler according to claim 10, wherein the preset angle is 90° or 180°.
12. The auxiliary hook-up device for a transition coupler according to claim 10, wherein the number of the positioning grooves corresponds to the number of setting points of the auxiliary hook.
13. The auxiliary coupling device for a transition coupler according to any one of claims 1 to 4, wherein when a plurality of positioning grooves are provided on the rotating shaft and a plurality of second through holes are provided on the support, The plurality of positioning slots correspond to the plurality of second through holes in sequence, the locking mechanism presses against one of the plurality of positioning slots, and one of the plurality of auxiliary hooks in the rotary hook assembly In the hook position.
14. A transition coupler for rail vehicles, characterized by comprising: a transition coupler body and the auxiliary coupling device for the transition coupler according to any one of claims 1 to 13, the support of the auxiliary coupling device for the transition coupler The seat is welded to the transition coupler body.
15. A rail vehicle, characterized by comprising the rail vehicle transition coupler according to claim 14.

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