CN111376942A

CN111376942A - Auxiliary coupling device for transition coupler, railway vehicle transition coupler and railway vehicle

Info

Publication number: CN111376942A
Application number: CN201811636842.0A
Authority: CN
Inventors: 张晋伟; 周磊; 吴刚; 张萍
Original assignee: CRRC Qishuyan Institute Co Ltd; CRRC Changzhou Tech Mark Industrial Co Ltd
Current assignee: CRRC Brake System Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-07-07

Abstract

The invention provides an auxiliary coupling device for a transition coupler, a railway vehicle transition coupler and a railway vehicle. This transition coupling for coupling device includes: the rotary hook assembly comprises a cylinder and a plurality of auxiliary hooks arranged along the circumferential direction of the cylinder, wherein the auxiliary hooks are used for hooking a front-end coupler of a railway vehicle; a support for securing the auxiliary coupling device to the transition coupler; a spindle partially positioned in the interior cavity of the holder and including an outer extension projecting axially upward from the interior cavity of the holder, wherein the spindle is disposed separately from the swivel clevis assembly; a connecting post located between said support and said swivel hanger assembly and mounted on said outer extension; and the detachable pressing piece is used for pressing and fixing the rotating hook component on the connecting column. The rotary hook component of the auxiliary coupling device is very convenient to replace.

Description

Auxiliary coupling device for transition coupler, railway vehicle transition coupler and railway vehicle

Technical Field

The application relates to the technical field of hooks for railway vehicles, in particular to a device for assisting in coupling of a transition hook and a front-end hook of a motor train unit.

Background

The transition coupler is generally used for connecting a transported vehicle and a power locomotive and is an important device for vehicle shunting operation, train returning and rescue. In the fields of high-speed motor train units, intercity motor train units and urban rail vehicles, transition couplers of tight-lock automatic couplers are widely used.

At present, due to different technical configurations adopted by domestic motor train units, the models of front-end automatic couplers equipped for various motor train models are not uniform, and the shapes of coupling panels are different, so that the use of the transitional couplers is greatly limited.

In a class of solutions, the transition coupler is provided with different auxiliary coupling means allowing it to be rotated for switching the auxiliary coupling, for example an auxiliary coupling for a transition coupler of the type disclosed in patent application CN 104129401a, where the coupling is formed integrally with a positioning cylinder, where the positioning cylinder is cut out with a plane below the coupling, where the distance from the center of the cylinder is smaller than the radius of the cylinder. An elastic sheet is fixed on the side surface of the auxiliary hook mounting seat, and the convex part of the head part of the elastic sheet is tightly pressed on the positioning cylinder. When the pressing part moves from the positioning cylinder plane to the cylinder plane, the elastic sheet needs to overcome the elastic force to lean backwards. Therefore, unless interfered by external force, the positioning cylinder is fixed at the plane and cannot be easily rotated. The auxiliary hooks are in one-to-one correspondence with the positioning planes, so that the positioning of the auxiliary hooks is realized.

As an external cantilever type mounting structure, the locking device in the scheme has the following disadvantages: firstly, the locking elastic sheet is only pressed on the connecting column by the elastic force of one end of the locking elastic sheet, and is limited by the cantilever type installation structure, the locking elastic sheet which can be actually utilized has smaller locking elastic force ratio, and the locking elastic sheet is easier to generate outward-upward deformation along with the increase of the use times or time, the reliability of locking and positioning is poorer and poorer, and the reliability and the safety of the use of the auxiliary hook device can not be ensured. Secondly, a locking device formed by the locking elastic sheet and the fastening piece is arranged outside the support and the connecting column and is easily influenced and interfered by the external environment, so that the locking and positioning effects of the locking elastic sheet and the fastening piece are influenced, and the locking elastic sheet and the fastening piece also occupy relatively large space and have a very small structure; thirdly, the spring plate is complex in manufacturing process and high in assembly precision requirement, the spring plate needs to be made of a material with high elasticity and subjected to heat treatment, and the locking and positioning effects are affected when the distance between the spring plate and the positioning cylinder is too close or too far.

In addition, the auxiliary hook adopting the integral design in the scheme has the defects that: when the auxiliary hook is damaged or other types of hooks need to be replaced to adapt to different front-end car couplers, the whole set of auxiliary hook device needs to be detached, and the auxiliary hook on the auxiliary hook device is reassembled, debugged and positioned after being integrally replaced.

Disclosure of Invention

Accordingly, the present application provides an auxiliary coupling device for a transition coupler and a railway vehicle transition coupler that effectively solve or at least alleviate one or more of the above-mentioned problems and other problems associated with the prior art.

According to an aspect of the present invention, there is provided an auxiliary coupling device for a transition coupler, comprising:

the rotary hook assembly comprises a cylinder and a plurality of auxiliary hooks arranged along the circumferential direction of the cylinder, wherein the auxiliary hooks are used for hooking a front-end coupler of a railway vehicle;

a support for securing the auxiliary coupling device to the transition coupler;

a spindle partially positioned in the interior cavity of the holder and including an outer extension projecting axially upward from the interior cavity of the holder, wherein the spindle is disposed separately from the swivel clevis assembly;

a connecting post located between said support and said swivel hanger assembly and mounted on said outer extension; and

the detachable pressing piece is used for pressing and fixing the rotating hook component on the connecting column.

Optionally, the connecting column is an internal threaded column, an outer protruding portion of the rotating shaft is in threaded connection with the internal threaded column, the rotating shaft and the rotating hook assembly are pressed against each other through the upper end of the internal threaded column and are detachably and fixedly connected together, and the rotating hook assembly and the rotating shaft are linked through the internal threaded column when the rotating hook assembly rotates in the circumferential direction.

Optionally, a first end of the rotating shaft corresponding to the outer protruding part is screwed to the lower end of the internal threaded column; the pressing piece is a pressing bolt; the cylinder of the rotary hook assembly is provided with a connecting hole which penetrates along the axial direction, and the compression bolt penetrates through the connecting hole of the cylinder and is in threaded connection with the upper end of the internal thread column.

Optionally, when the first end of the rotating shaft and the compression bolt are both in threaded fastening connection with the internally threaded column, a gap exists between the compression bolt and the first end of the rotating shaft in the axial direction.

Optionally, a cylinder of the rotating hook assembly is provided with a connecting hole which penetrates along the axial direction, a first end of the rotating shaft, which corresponds to the outer protruding part, is provided with a thread, the outer protruding part penetrates through the connecting holes of the connecting column and the cylinder, and the first end of the outer protruding part extends out of the connecting hole; the pressing piece is a pressing nut and is in threaded connection with the first end of the rotating shaft through the pressing nut so as to press and fix the rotating hook component on the connecting column.

Optionally, the connecting column is an internal thread column, and when the internal thread column is fixed on the rotating shaft in a threaded connection manner, the lower end of the internal thread column abuts against the upper step surface of the rotating shaft and does not abut against the upper surface of the support basically.

Optionally, a first through hole axially penetrating through the support is formed in the support, wherein a first end of the rotating shaft penetrates through the first through hole; the support is also provided with a second through hole which extends along the radial direction of the support and is communicated with the first through hole and the outer side of the support;

the rotating shaft comprises a shaft body and a positioning groove arranged along the circumferential direction of the shaft body, and the positioning groove and the second through hole are correspondingly arranged; the shaft body is inserted into the first through hole of the support and connected to the cylinder of the rotating hook component, so that the rotating hook component is linked with the rotating shaft;

the auxiliary coupling device further comprises: the locking mechanism is arranged in the second through hole of the support and keeps abutting against the rotating shaft; the locking mechanism is provided with a base part fixedly connected to the second through hole and a positioning part capable of reciprocating relative to the base part along the radial direction;

when the positioning part is in the locking position, the positioning part is pressed against the positioning groove; when the positioning part is in the non-locking position, the positioning part is abutted against the shaft body; when the locking position is switched to the unlocking position, the rotating hook assembly is applied with a force not smaller than a preset value, and the rotating shaft linked with the rotating hook assembly enables the positioning part of the locking mechanism to be pushed out from the positioning groove to abut against the shaft body.

Optionally, the base comprises a sleeve having an opening at one end; the positioning part comprises an elastic element and a locking piece which are arranged in the sleeve; the elastic element presses against the locking piece to enable the locking piece to bear the acting force moving towards the opening of the sleeve to press against the shaft body; when in the locking position, the locking piece is pressed against the positioning groove; when the locking position is not locked, the locking piece is abutted against the shaft body.

Optionally, the sleeve has an external thread and the second through hole has an internal thread; the sleeve is in threaded connection with the second through hole.

Optionally, the base comprises a fastening bolt; the positioning part comprises an elastic element and a locking piece, and the second through hole is provided with an internal thread; the fastening bolt is connected with the second through hole through threads, and the elastic element respectively presses against the fastening bolt and the locking piece to enable the locking piece to move towards the shaft body; when in the locking position, the locking piece is pressed against the positioning groove; when the locking position is not locked, the locking piece is abutted against the shaft body.

Optionally, the resilient element is a coil spring or a belleville spring.

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

Optionally, the locking member is a ball or a cylinder having a wedge surface at an end facing the positioning slot.

Optionally, the cylinder has a plurality of supplementary couple setpoint according to predetermineeing the angle interval along circumference, the quantity of supplementary couple corresponds to or is less than the quantity of supplementary couple setpoint.

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

Optionally, the number of positioning grooves corresponds to the number of auxiliary hook set points.

Optionally, when the rotating shaft is provided with a plurality of positioning grooves and the support is provided with a plurality of second through holes, the plurality of positioning grooves sequentially correspond to the plurality of second through holes, the locking mechanism abuts against one of the plurality of positioning grooves, and one of the plurality of auxiliary hooks in the rotating hook assembly is in a hanging position.

According to yet another aspect of the present invention, there is provided a railway vehicle transition coupler comprising: the auxiliary coupling device for the transition coupler comprises a transition coupler body and the auxiliary coupling device for the transition coupler, wherein the support of the auxiliary coupling device for the transition coupler is welded to the transition coupler body.

According to still another aspect of the present invention, there is provided a rail vehicle including: the railway vehicle transition coupler is described above.

According to the auxiliary coupling device for the transition coupler, the railway vehicle transition coupler and the railway vehicle, the rotary hook component which is arranged in a split manner relative to the rotating shaft is detachably and fixedly connected through the connecting column and the pressing piece, the rotary hook component can be linked with the rotating shaft when the rotary hook component rotates along the circumferential direction, the rotary hook component is very convenient to replace, for example, different types of rotary hook components can be replaced, different types of couplers can be conveniently used, and the application range of the auxiliary coupling device for the coupler and the railway vehicle transition coupler is greatly expanded.

Drawings

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

Fig. 2 is a schematic cross-sectional view of an embodiment of an auxiliary coupling device for a transition coupler of the present application taken along a vertical plane.

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

FIG. 4 is a perspective view of one embodiment of a railway car transition coupler of the present application.

Fig. 5 is a schematic view of an embodiment of a railway car transition coupler of the present application, wherein auxiliary hook 112a is in a hitching position.

Fig. 6 is a schematic illustration of an embodiment of a railway car transition coupler of the present application, wherein auxiliary hook 112b is in a hitching position.

FIG. 7 is a schematic cross-sectional view of yet another embodiment of an auxiliary coupling device for a transition coupler of the present application taken along a vertical plane.

Description of the reference numerals

100、700	Auxiliary coupling device for transition car coupler
		110	Rotary hook assembly
111	Column body
		112a、112b	Auxiliary hook
113	Connecting hole
		120	Support base
121	The first through hole
		122a、122b	Second through hole
130	Rotating shaft
		131	Shaft body
132	Locating slot
		140	Locking mechanism
141	Sleeve barrel
		142	Elastic element
143	Locking piece (ball bearing)
		150	Internal thread column
160	Pressing bolt
		200	Railway vehicle transition coupler
210	Transition coupler body
		139	First end of the rotating shaft
138	Compression nut

Detailed Description

Embodiments of an auxiliary coupling device for a transition coupler are described herein with reference to fig. 1-3, in accordance with aspects of the present disclosure. The auxiliary coupling device 100 for the transition coupler comprises a rotating hook assembly 110, an internal threaded column 150 and a support 120 which are arranged in sequence from top to bottom, and the auxiliary coupling device 100 further comprises a rotating shaft 130 and a locking mechanism 140. The whole auxiliary coupling device 100 of the transition coupler is firstly welded on the coupler body of the transition coupler 200 through the support 120, then the locking mechanism 140 is used for locking and unlocking the rotating shaft to control the movement or locking of the rotating shaft, and further the movement is transmitted through the rotating shaft to realize the switching of the auxiliary coupler between the coupling position and the non-coupling position and the reliable locking and convenient unlocking of the auxiliary coupler at the coupling position.

Specifically, the rotating hook assembly 110 has a cylinder 111 and a plurality of

auxiliary hooks

112a and 112b arranged along the circumference of the cylinder 111, and the

auxiliary hooks

112a and 112b have different models or specifications for hooking different models of couplers at the front end of the railway vehicle. The holder 120 includes a first through hole 121 axially penetrating the holder 120 and a plurality of second through

holes

122a, 122b extending in a radial direction of the holder 120 and communicating the first through hole 121 with an outer side of the holder 120 so that corresponding parts are inserted into the holes. The rotating shaft 130 includes a shaft body 131 and a positioning groove 132 disposed along the circumferential direction of the shaft body 131, and the positioning groove 132 is disposed corresponding to the second through

holes

122a and 122 b. 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 cylinder 111 of the rotating hook assembly, so that the rotating hook assembly 110 is linked with the rotating shaft 130, that is, the rotating shaft 130 can be rotated by screwing the rotating hook assembly 110, and the rotating hook assembly 110 can be correspondingly locked by locking the rotating shaft 130.

Alternatively, the first through hole 121 may be a T-shaped hole, so that the rotation shaft can be conveniently assembled in place relative to the support without interfering with the relative rotation therebetween.

The locking mechanism 140 is disposed in the second through

holes

122a and 122b of the holder 120 and can be held against the shaft 130. Wherein the second through

holes

122a, 122b may be provided in a configuration having an internal thread, whereby the fitting of the locking mechanism 140 in place with respect to the second through

holes

122a, 122b may be easily achieved.

Specifically, the lock mechanism 140 includes a base portion fixedly connected to the second through

holes

122a and 122b, and a positioning portion capable of reciprocating in the radial direction with respect to the base portion. In the locking position, the positioning portion of the locking mechanism 140 radially extends into the abutting positioning groove 132; when in the unlocked position, the positioning part radially extends into the shaft body 131 abutting against the rotating shaft 130; when the rotating hook assembly 110 is screwed when the locking position is switched to the unlocking position, the rotating shaft 130 is applied with a force not less than the predetermined value, so that the positioning part is withdrawn from the positioning groove 132 in the radial direction until the positioning part abuts against the shaft body 131 of the rotating shaft 130.

Under the arrangement, by 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, so as to lock the whole rotating hook assembly 110, so that the

auxiliary hooks

112a and 112b can be hooked in a relatively stable state, and the coupling of the transition coupler is facilitated. If it is necessary to switch other suitable types of

auxiliary hooks

112a, 112b or temporarily not to use any

auxiliary hook

112a, 112b, an external force can be applied to push the rotating hook assembly 110, which is equivalent to the external force applied to the rotating shaft 130 linked with the rotating hook assembly 110, when the external force exceeds the elastic locking force of the preset value, i.e. is large enough to push the positioning portion out of the positioning slot 132, the rotating hook assembly and the rotating shaft 130 can continue to rotate, and both the rotating hook assembly and the rotating shaft are in the locking release state until the rotating shaft 130 rotates until the locking mechanism 140 abuts another positioning slot 132, and then the rotating hook assembly and the rotating shaft enter the locking state again.

Thus, the example of fig. 1 and 2 provides an auxiliary coupling device 100 for a transition coupler having a plurality of

auxiliary hooks

112a, 112b that is reliable in locking and easy to switch, and the components thereof are simple in manufacturing process, easy to obtain, and easy to maintain. Whole positioning mechanism hides in supplementary couple mount pad, compact structure, and locking location can not receive the interference and the influence of external environment, facility, and locking is more reliable, has improved the security and the accuracy of the manual supplementary couple operation of transition coupling, and possesses apparent dustproof, rust-resistant effect.

In the foregoing embodiments, the positioning grooves are provided corresponding to the through holes, which is intended to pay attention to the matching positional relationship therebetween, and not to limit the number of the positioning requirements. In particular, on the one hand, the design of the positioning slot is to provide a corresponding locking or idle position for the locking mechanism, and if a total of N locking positions and idle positions need to be provided, N sets of positioning slots should be provided correspondingly. Wherein the positioning grooves in the form of groups may provide a more stable positioning effect. In the case that the requirement for positioning effect is relatively low, each group of positioning grooves may include at least one positioning groove. On the other hand, the second through hole is designed to provide an arrangement space for the locking mechanism, and if M locking mechanisms need to be arranged, M second through holes should be correspondingly provided. In addition, the spacing angle between the positioning grooves arranged on the rotating shaft needs to have a corresponding relation with the positioning angle of the second through hole, so that when the rotating shaft rotates and the second through hole respectively corresponds to one group of positioning grooves on the rotating shaft, the locking mechanism can be matched with the positioning grooves, and the corresponding auxiliary hook is rotated to a hanging position or a vacant position; after that, if the rotating shaft is continuously rotated until the second through hole respectively corresponds to the other group of positioning grooves on the rotating shaft, the locking mechanism can be matched with the positioning grooves again, so that the corresponding other auxiliary hook is rotated to the hanging position or the vacant position.

Of course, the number of locking mechanisms may correspond to the number of detents in each set of detents, but this is not a requirement, in order to provide a more optimal detent effect.

In the teaching of the foregoing principle, as an example of a type, when one auxiliary hook is provided, 2 second through holes spaced 90 degrees apart from each other may be provided on the support, and one positioning groove may be correspondingly provided on the shaft body of the rotating shaft. As another example, 1 second through hole may be provided on the support, and 2 positioning grooves spaced 90 degrees apart from each other may be provided on the shaft body of the rotating shaft. More specifically, in conjunction with fig. 2 and 3 in the present application, 2 second through holes spaced 180 degrees apart from each other may be provided on the support, and correspondingly 4 positioning grooves spaced 90 degrees apart from each other may be provided on the shaft body of the rotating shaft.

In addition, on the basis of the foregoing embodiments, the components of the auxiliary coupling device 100 for a transition coupler or the connection relationship therebetween may be modified, or other components may be additionally added for other purposes, as will be exemplarily described below with reference to the drawings.

For example, as a specific embodiment of the locking mechanism, a standard part spring ball plug can be used. The base of the spring ball plunger may include a sleeve 141 having an opening at one end, and the positioning portion of the spring ball plunger includes an elastic element 142 and a ball 143 disposed in the sleeve 141. Wherein, as a fastening means therebetween, the sleeve 141 has an external thread, and the second through

holes

122a, 122b have an internal thread; the sleeve 141 is screwed to the second through

holes

122a and 122 b. In addition, the elastic element 142 can press the ball 143, so that the ball 143 receives the force moving toward the opening of the sleeve 141 to press the shaft 131. Specifically, when the hook is in the locked position, the elastic element 142 presses the ball 143 against the positioning groove 132, and the rotating shaft and the rotating hook assembly are in a relatively stable state, i.e., the auxiliary hooks complete the switching, one of the auxiliary hooks may be used for hooking, or all the auxiliary hooks are in an idle state. In the unlocked position, the elastic element 142 presses the ball 143 against the shaft 131, and the rotating shaft and the rotating hook assembly can rotate relative to the locking mechanism until the locking mechanism abuts against the next positioning slot 132 on the rotating shaft to perform a new locking operation, which also means that a new switching operation is performed between adjacent auxiliary hooks. Under the arrangement, the circumferential positioning of the rotating shaft is realized only by the spring ball plugs in a plurality of standard part forms, the structure is effectively simplified, and the manufacturing and maintenance cost is reduced; and the most critical locking mechanism is completely built in, the structure is compact, the locking and positioning are not interfered and influenced by external environment and facilities, the accuracy and the safety of the manual auxiliary hook operation of the transition coupler are improved, and the manual auxiliary hook has good dustproof and antirust effects, so that the reliability is higher.

Further, although not shown in the drawings, as an alternative embodiment of the locking mechanism, it is possible to have its base portion include a fastening bolt; and the positioning part comprises an elastic element and a locking piece. The second through-hole is also provided with an internal thread, so that the fastening bolt is screwed into the second through-hole. In addition, the elastic element respectively supports against the fastening bolt and the locking piece, so that the locking piece has acting force moving towards the shaft body to support against the shaft body. With this arrangement, when the locking mechanism is in the locked position, the locking member abuts against the positioning groove; when the locking mechanism is at the non-locking position, the locking piece is pressed against the shaft body.

Alternatively, the balls used in the previous embodiments may be replaced by a cylinder or other similar locking member having a wedge surface, wherein the wedge surface should be provided at the end of the cylinder facing the positioning slot, whereby the cooperation with the positioning slot is also achieved. In addition, the elastic element may be a coil spring, a belleville spring, or other similar elastic component such as a non-metal elastic component, to achieve the unlocking or locking function. Therefore, based on the foregoing disclosure, the locking mechanism used herein has a combination structure of a wedge-shaped cylinder and a belleville spring, a combination structure of a wedge-shaped cylinder and a coil spring, a combination structure of a ball and a belleville spring, and the like, in addition to such a combination structure of a ball and a coil spring.

Similarly, the locking mechanism has various 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 (i.e. the seat), and the positioning portion at least has a mechanical structure capable of reciprocating back and forth along a fixed direction, which is not listed herein.

In an embodiment, the auxiliary coupling device 100 for a transition coupler may further include an internally threaded post 150 as a solution to promote efficiency in part assembly and replacement. The internally threaded post 150 is axially disposed between the swivel clevis assembly 110 and the support 120. Wherein, a first end (e.g., an upper end) of the shaft body 131 of the rotating shaft 130 protrudes out from the first through hole of the support 120, the upper end of the shaft body 131 has an external thread corresponding to the internal thread of the internally threaded column 150, and the upper end of the shaft body 131 is screwed to a lower end of the internally threaded column 150 and is connected to the cylinder 111 of the rotating hook assembly 110 via the internally threaded column 150. In this arrangement, the internally threaded post 150 is thus a connection hinge between the shaft body 131 of the rotating shaft 130 and the column body 111 of the rotating hook assembly 110, so that the rotating hook assembly 110 and the rotating shaft 130 are linked via the internally threaded post 150.

Specifically, as shown in fig. 2, when the first end of the rotating shaft 130 is screwed to the lower end of the internally threaded column 150, the lower end of the internally threaded column 150 abuts against the upper step surface of the rotating shaft 130 and does not abut against the upper surface of the support 120, so that when the rotating hook assembly 110 is coupled with the rotating shaft 130 via the internally threaded column 150, a certain degree of freedom is provided with respect to the rotation of the support 120.

It will be appreciated that the rotating hook assembly 110 and the rotating shaft 130 of the auxiliary coupling device 100 for a transition coupler may also be directly connected, for example, the column 111 is provided with an internal threaded hole, the outer periphery of the shaft is provided with an external thread, and the two are connected by a threaded connection

Further, as one of the means for improving the applicability of the swivel hook assembly, it may be provided as a swivel hook assembly in a form of quick attachment and detachment. For example, the auxiliary coupling device 100 for a transition coupler may further include a pressing bolt 160, and the cylinder 111 of the rotating hook assembly 110 may be correspondingly disposed with the coupling hole 113 extending therethrough in the axial direction. At this time, the compression bolt 160 will be connected to the internally threaded post 150 via the connection hole 113 of the cylinder 111, i.e., the connection between the rotating hook assembly 110 and the internally threaded post 150 is achieved by the compression bolt 160. At this moment, even if a plurality of auxiliary hooks on this rotating hook component do not all satisfy the corresponding specification of transition coupling, also can realize changing a whole set of rotating hook component through unscrewing this clamp bolt 160, and need not other parts such as dismouting pivot, it is all very convenient to dismantle with the installation operation.

It should be noted that, as shown in fig. 2, when the upper ends of the pressure bolt 160 and the rotating shaft 131 are both screwed and fastened to the internally threaded post 150, a gap exists between the upper ends of the pressure bolt 160 and the rotating shaft 131 in the axial direction, so as to prevent them from abutting against each other. The size of the gap can be set by the dimensions related to the hold-down bolt 160, the male portion of the shaft 131, and the internally threaded post 150.

It will be appreciated that the above illustrated structure not only makes the replacement of the swivel hanger assembly 110 very convenient, but also, on the one hand, the position of the plurality of auxiliary hangers 112 of the swivel hanger assembly 110 in the circumferential direction is easily adjusted at the time of fixed mounting, for example, the position adjustment of the auxiliary hangers 112 in the circumferential direction is set in advance before the tightening of the pressing bolt 160, and the swivel hanger assembly 110 and the internally threaded post 150 are pressed against each other and provide a stable support surface for the swivel hanger assembly 110, the plurality of auxiliary hangers 112 are not easily dislocated in the circumferential direction at the time of the swivel hanger assembly 110 being rotated; on the other hand, the internal threaded post 150 and the pressing bolt 160 can couple and fix the rotating hook assembly 110 and the rotating shaft 130 well, ensuring the reliability of the linkage therebetween.

Fig. 7 is a schematic cross-sectional view of another embodiment of an auxiliary coupling device for a transition coupler of the present application taken along a vertical plane. In the auxiliary coupling device 700 of the alternative embodiment of fig. 7, the rotating shaft 131 is integrally formed and relatively longer, the first end 139 (i.e., the upper end of the outer protruding portion) thereof extends upward and penetrates the connecting hole 113 in the cylindrical body 111 of the rotating hook assembly 110 and protrudes outside the rotating hook assembly 110, the pressing nut 138 is disposed corresponding to the first end 139, wherein the first end 139 is provided with an external thread, the pressing nut 138 is provided with a corresponding internal thread, and the pressing nut 138 is screwed with the first end 139 of the rotating shaft 131, so that the rotating hook assembly 110 and the internally threaded column 150 are pressed against each other and fixedly connected together. When the type of the rotating hook component 110 needs to be changed, the compression nut 138 is detached, and the whole operation is convenient.

It will be appreciated that the above primary description of the secondary linkage 700 is a primary variation of the secondary linkage 100 of fig. 2 in that other components not involved have substantially the same structure or configuration and are not described in detail herein. Also, the above embodiment auxiliary coupling device 700 has substantially the same effects as the auxiliary coupling device 100.

It should be noted that although the above-illustrated internally threaded post 150 is one implementation of the attachment post of the

auxiliary coupling device

100 or 700 according to an embodiment of the present invention, in other alternative embodiments such as the auxiliary coupling device 700, the attachment post may be configured as a post without internal threads, which is pressed and fixed on the rotating shaft 131 by the pressing nut 138, the rotating hook assembly 110 and the attachment post are also pressed and fixed to each other, and a stable supporting surface is provided for the rotating hook assembly 110, and the attachment post, the pressing nut 138 and the rotating shaft 130 can rotate synchronously with the rotating hook assembly 110.

It should be noted that although the above-mentioned exemplary compression nut or compression bolt is one implementation of the compression member according to an embodiment of the present invention, in other alternative embodiments, other removable compression members are also used. As further shown in fig. 1 and 2, with respect to the rotating hook assembly 110, the cylinder 111 thereof may have a plurality of auxiliary hook set points at predetermined angular intervals in a circumferential direction and be disposed such that the number of the

auxiliary hooks

112a, 112b corresponds to or is less than the number of the auxiliary hook set points. When the number of

auxiliary hooks

112a, 112b corresponds to the auxiliary hook set point, i.e., a plurality of different types of

auxiliary hooks

112a, 112b are circumferentially spaced around the body portion 111 for a plurality of different coupler transition scenarios. When the number of the

auxiliary hooks

112a, 112b is less than the auxiliary hook set points, that is, a plurality of the auxiliary hook set points are in an empty state. At this time, the idle state may be applied in the non-coupled operating mode of the transition coupler. As a specific realization of this arrangement, the predetermined angular interval may be 90 ° or 180 °, i.e. for 4, 3 or 2 auxiliary hooks in the fully loaded state, or for 3, 2 or 1 auxiliary hooks in another state in which an empty position is reserved.

On the other hand, the number of the positioning grooves 132 on the rotation shaft 130 may be set to correspond to the number of the auxiliary hook setting points, so that whether the auxiliary hook setting point is provided with an auxiliary hook or is empty, it has its own corresponding locking position, so that the corresponding auxiliary hook can be selected as desired or an empty state can be selected. It will be appreciated that in one embodiment, by providing a number of detents 132 relative to the accessory hook 112, it may be possible to reserve at least one detent 132 or a set of detents 132 for leaving the accessory hook empty (i.e., in a state where the accessory hook is not used to couple a transition coupler).

In the foregoing embodiments, it is mentioned that the positioning grooves are provided corresponding to the auxiliary hook setting points, which is intended to pay attention to the matching positional relationship and the quantitative relationship therebetween. Specifically, a plurality of groups of positioning grooves are arranged on the rotating shaft corresponding to the angles of the second through holes. When the rotating shaft rotates, when the locking mechanism in the second through hole on the support corresponds to a group of positioning grooves on the rotating shaft respectively, an auxiliary hook setting point is obtained, and an auxiliary hook can be arranged at the angle or is vacant. And then, the rotating shaft is continuously rotated, and when the locking mechanism in the second through hole corresponds to the next group of positioning grooves in the rotating shaft again, the next auxiliary hook setting point can be obtained.

In addition, as a specific corresponding relationship among the rotating hook assembly, the rotating shaft, the support and the locking mechanism in a moving state, when the plurality of positioning grooves 132 on the rotating shaft 130 sequentially correspond to the plurality of second through

holes

122a, 122b on the support 120, the positioning portion of the locking mechanism 140 is pressed into the positioning groove 132, and one of the plurality of

auxiliary hooks

112a, 112b in the rotating hook assembly 110 is in the installation position.

Referring additionally to fig. 4, an embodiment of a railway car transition coupler is also provided. The railway vehicle transition coupler 200 includes: a transition coupler body 210; and the auxiliary coupling device 100 for a transition coupler in any of the embodiments or combinations thereof described above. Wherein the carrier 120 of the auxiliary coupling device 100 for a transition coupler is welded to the transition coupler body 210. As shown in fig. 2, since the seat 120 of the auxiliary coupling device 100 for a transition coupler is installed at the transition coupler body 210 at a position having a slope, the left side of the seat shown in fig. 2 is different from the right side thereof. The rail vehicle transition coupling with the above arrangement can reliably lock the auxiliary hook to be used by the auxiliary coupling device, thereby realizing stable connection between the transition couplings. In addition, it has a plurality of

supplementary couples

112a, 112b and switches the convenience to can match the different rail vehicle front end car hook of multiple specification, have high accommodation and simple operation.

With continued reference to fig. 5-6, two hitch positions of the auxiliary coupling device 100 for a transition coupler mounted on a railway car transition coupler 200 are illustratively shown. The auxiliary coupler 112a is shown in a hitching position in figure 5 and is stably locked therein. When the switch is needed, the rotating hook assembly can be screwed by applying an external force and then transferred to the rotating shaft, and when the applied external force exceeds a preset value, the ball 143 of the locking mechanism 140 is pushed out from the positioning groove 132 of the rotating shaft until the ball abuts against the wall surface of the shaft body of the rotating shaft. The rotating clevis assembly may then be easily twisted until the ball 143 of the locking mechanism 140 reenters the next detent 132 in the shaft, thereby completing the transition coupler clevis to unhook state. As shown in fig. 6, the auxiliary coupler 112b will now be brought to another hitching position and locked there stably.

Furthermore, although not shown in the figures, according to yet another aspect of the present application, there is also provided an embodiment of a rail vehicle. The railway vehicle can comprise the railway vehicle transition coupler in any embodiment or combination of the above embodiments, so that the corresponding technical effects brought by the railway vehicle transition coupler are also achieved.

The above examples mainly describe an auxiliary coupling device for a transition coupler, a railway car transition coupler, and a railway car. Although only a few embodiments of the present application have been described, those skilled in the art will appreciate that the present application may be embodied in many other forms without departing from the spirit or scope thereof. Accordingly, the present examples and embodiments are to be considered as illustrative and not restrictive, and various modifications and substitutions may be made therein without departing from the spirit and scope of the present application as defined in the appended claims.

Claims

1. The utility model provides a transition coupling is with supplementary even device that hangs which characterized in that includes:

a support for securing the auxiliary coupling device to the transition coupler;

2. The auxiliary coupling device for a transition coupler of claim 1, wherein the coupling post is an internally threaded post, an external protruding portion of the shaft is threadedly coupled to the internally threaded post, the shaft and the rotating hook assembly are pressed against each other via an upper end of the internally threaded post and detachably and fixedly coupled together, and the rotating hook assembly and the shaft are interlocked via the internally threaded post when the rotating hook assembly is rotated in a circumferential direction.

3. The auxiliary coupling device for a transition coupler of claim 2, wherein a first end of the rotary shaft corresponding to the outer protruding portion is screwed to a lower end of the internally threaded column; the pressing piece is a pressing bolt; the cylinder of the rotary hook assembly is provided with a connecting hole which penetrates along the axial direction, and the compression bolt penetrates through the connecting hole of the cylinder and is in threaded connection with the upper end of the internal thread column.

4. The auxiliary coupling device for the transition coupler of claim 3, wherein when the first end of the rotating shaft and the hold-down bolt are both in threaded fastening connection with the internally threaded post, a gap exists between the hold-down bolt and the first end of the rotating shaft in the axial direction.

5. The auxiliary coupling device for the transition coupler of claim 1, wherein the cylinder of the rotary hook assembly is provided with a connecting hole extending therethrough in the axial direction, a first end of the rotary shaft corresponding to the external extension is provided with a screw thread, the external extension extends through the connecting holes of the connecting column and the cylinder and a first end thereof extends upward to the outside; the pressing piece is a pressing nut and is in threaded connection with the first end of the rotating shaft through the pressing nut so as to press and fix the rotating hook component on the connecting column.

6. The auxiliary coupling device for the transition coupler of claim 1, wherein the connecting column is an internal threaded column, and when the internal threaded column is screwed and fixed on the rotating shaft, the lower end of the internal threaded column abuts against the upper step surface of the rotating shaft and does not abut against the upper surface of the support.

7. The auxiliary coupling device for the transition coupler of claim 1, wherein the support is provided with a first through hole axially penetrating through the support, and wherein the first end of the rotating shaft penetrates through the first through hole; the support is also provided with a second through hole which extends along the radial direction of the support and is communicated with the first through hole and the outer side of the support;

8. The accessory coupling arrangement of claim 7, wherein the base includes a sleeve having an opening at one end; the positioning part comprises an elastic element and a locking piece which are arranged in the sleeve; the elastic element presses against the locking piece to enable the locking piece to bear the acting force moving towards the opening of the sleeve to press against the shaft body; when in the locking position, the locking piece is pressed against the positioning groove; when the locking position is not locked, the locking piece is abutted against the shaft body.

9. The auxiliary coupling device for a transition coupler of claim 7 wherein said sleeve has an external thread and said second through hole has an internal thread; the sleeve is in threaded connection with the second through hole.

10. The auxiliary coupling device for a transition coupler of claim 7, wherein the base includes a fastening bolt; the positioning part comprises an elastic element and a locking piece, and the second through hole is provided with an internal thread; the fastening bolt is connected with the second through hole through threads, and the elastic element respectively presses against the fastening bolt and the locking piece to enable the locking piece to move towards the shaft body; when in the locking position, the locking piece is pressed against the positioning groove; when the locking position is not locked, the locking piece is abutted against the shaft body.

11. An auxiliary coupling device for a transition coupler according to any one of claims 8 to 10, wherein said elastic member is a coil spring or a belleville spring.

12. An auxiliary coupling device for a transition coupler according to any one of claims 8 to 10 wherein said resilient member is a non-metallic resilient member.

13. An auxiliary coupling device for a transition coupler according to any one of claims 8 to 10 wherein said locking member is a ball or a cylinder having a wedge surface at an end facing the detent.

14. The auxiliary coupling device for the transition coupler of any one of claims 1 to 10, wherein the cylinder has a plurality of auxiliary hook setting points at predetermined angular intervals in a circumferential direction, and the number of the auxiliary hooks corresponds to or is smaller than the number of the auxiliary hook setting points.

15. The auxiliary coupling device for a transition coupler of claim 14, wherein the predetermined angle is 90 ° or 180 °.

16. The auxiliary coupling device for a transition coupler of claim 14 wherein the number of detents corresponds to the number of auxiliary hook set points.

17. The auxiliary coupling device for the transition car coupler according to any one of claims 7 to 10, wherein when a plurality of positioning grooves are formed in the rotating shaft and a plurality of second through holes are formed in the support, the plurality of positioning grooves sequentially correspond to the plurality of second through holes, the locking mechanism is pressed against one of the plurality of positioning grooves, and one of the plurality of auxiliary hooks in the rotary hook assembly is in a hooking position.

18. A rail vehicle transition coupler, comprising: a transition coupler body and an auxiliary coupling device for a transition coupler according to any one of claims 1 to 17, the abutment of the auxiliary coupling device for a transition coupler being welded to the transition coupler body.

19. A rail vehicle, comprising: the railway vehicle transition coupler of claim 18.