Double-height car coupler and height adjusting method thereof

Abstract

The invention provides a double-height car coupler and a height adjusting method thereof.The double-height car coupler comprises a top mounting plate and a traction beam set and further comprises a bottom mounting plate, a height adjusting cushion block and a buffer car coupler; the invention further discloses a height adjusting method of the double-height car coupler, the height adjusting method is applied to the double-height car coupler, and the height adjusting method comprises a car coupler height lowering method and a car coupler lifting method. According to the double-height car coupler, the car coupler body can be adjusted back and forth between two heights, and the double-height car coupler is suitable for export locomotives and China locomotives.

Description

Technical Field

[0001] The present invention relates to the technical field of locomotive couplers, and in particular to a double-height coupler and a height adjustment method thereof. Background Art

[0002] Since the hook height of the exported locomotive is different from that of the domestic locomotive (for example, the hook height of the locomotive exported to Eastern Europe is 1060mm, while the hook height of the domestic locomotive is 880mm), the exported locomotive needs to be towed during the domestic trial run, and the locomotive needs to be towed by the formal hook during the trial run, which requires the hook to be able to adjust back and forth between two heights. Summary of the invention

[0003] In response to the technical problems raised above, a dual-height coupler and a height adjustment method thereof are provided.

[0004] The technical means adopted by the present invention are as follows:

[0005] In the first aspect, a double-height coupler comprises: a top mounting plate; the top mounting plate is horizontally arranged and fixedly mounted on a locomotive; a traction beam group; the traction beam group comprises a pair of traction beams arranged vertically and symmetrical about a vertical plane, and the top ends of the traction beams are fixedly mounted on the top mounting plate; further comprising: a bottom mounting plate; the bottom mounting plate is horizontally arranged and located directly below the top mounting plate, the bottom ends of the traction beams are detachably mounted on the bottom mounting plate, and the bottom mounting plate is detachably mounted on the locomotive; a height adjustment pad; the height adjustment pad is detachably mounted between the top mounting plate and the bottom mounting plate and between two traction beams in the traction beam group; a buffer coupler; the buffer coupler is detachably mounted between the top mounting plate and the bottom mounting plate and between two traction beams in the traction beam group; the sum of the height of the height adjustment pad and the height of the buffer coupler is equal to the distance between the top mounting plate and the bottom mounting plate, and the height adjustment pad can be located directly below or directly above the buffer coupler.

[0006] Furthermore, the buffer coupler includes a coupler body and a traction buffer; the hook tail of the coupler body is installed on the traction buffer; the height of the traction buffer is the height of the buffer coupler, the traction buffer can be detachably installed between the top mounting plate and the bottom mounting plate and can be detachably installed between the two traction beams in the traction beam group, and the height adjustment pad can be located either directly below the traction buffer or directly above the traction buffer.

[0007] Furthermore, two opposite surfaces of a pair of traction beams in the traction beam group are respectively fitted with both sides of the height adjustment pad in the width direction and the both sides of the traction buffer in the width direction.

[0008] Furthermore, it also includes a slave plate seat group; the slave plate seat group includes a pair of slave plate seats that are vertically arranged and symmetrical about the vertical plane; the slave plate seat group is detachably installed on the two opposite sides of a pair of traction beams in the traction beam group, and the two opposite sides of a pair of slave plate seats in the slave plate seat group are respectively fitted with the two sides of the length direction of the height adjustment pad and the two sides of the length direction of the traction buffer.

[0009] Furthermore, it also includes a height fixing mechanism; the height fixing mechanism includes a fixed impact seat, a detachable impact seat and an equalizing beam; the fixed impact seat is fixedly mounted on the top mounting plate; the detachable impact seat is detachably mounted on the traction beam group and is located directly below the fixed impact seat; the equalizing beam is detachably mounted on the fixed impact seat or the detachable impact seat; when the height adjustment pad is located directly below the traction buffer, the detachable impact seat is not installed on the traction beam group, and the bottom surface of the coupler body is in contact with the top surface of the equalizing beam installed on the fixed impact seat; when the height adjustment pad is located directly above the traction buffer, the detachable impact seat is installed on the traction beam group, and the bottom surface of the coupler body is in contact with the top surface of the equalizing beam installed on the detachable impact seat.

[0010] Furthermore, it also includes a hanger, and the balancing beam is detachably mounted on a fixed impact seat or a detachable impact seat through the hanger; when the balancing beam is mounted on the fixed impact seat, the top end of the hanger is detachably mounted on the fixed impact seat, and the balancing beam is detachably mounted on the bottom end of the hanger; when the balancing beam is mounted on the detachable impact seat, the top end of the hanger is detachably mounted on the detachable impact seat, and the balancing beam is detachably mounted on the bottom end of the hanger.

[0011] In a second aspect, a height adjustment method for a dual-height coupler is applied to the dual-height coupler according to any one of the first aspects, comprising a coupler lowering method applied to a case where a height adjustment pad is located directly below a traction buffer, wherein the coupler lowering method comprises method A, and the method A comprises the following steps:

[0012] SA1: First remove the bottom mounting plate from the bottom end of the traction beam and the locomotive, then remove the height adjustment pad from between the top mounting plate and the bottom mounting plate and between the two traction beams in the traction beam group;

[0013] SA2: First remove the equalizing beam and the suspension rod from the fixed impact seat, then remove the plate seat from the traction beam, and finally remove the traction buffer from between the top mounting plate and the bottom mounting plate and between the two traction beams in the traction beam group;

[0014] SA3: First install the height adjustment pad between the top mounting plate and the bottom mounting plate and between the two traction beams in the traction beam group, and then install the traction buffer between the top mounting plate and the bottom mounting plate and between the two traction beams in the traction beam group. At this time, the height adjustment pad is located directly above the traction buffer, and the height of the coupler body is reduced;

[0015] SA4: First install the detachable impact seat on the traction beam assembly, then fit the top surface of the equalizing beam with the bottom surface of the coupler body, and finally install the equalizing beam on the detachable impact seat through the suspension rod;

[0016] SA5: Install the bottom mounting plate on the bottom end of the traction beam and on the locomotive.

[0017] Furthermore, the invention also includes a method for raising the coupler when the height adjustment pad is located directly above the traction buffer, wherein the method for raising the coupler includes method B, and method B includes the following steps:

[0018] SB1: Remove the bottom mounting plate from the bottom end of the traction beam and the locomotive;

[0019] SB2: First remove the equalizing beam and the suspension rod from the removable impact seat, then remove the removable impact seat from the traction beam assembly, and finally remove the plate seat from the traction beam;

[0020] SB3: First remove the traction buffer from between the top mounting plate and the bottom mounting plate and between the two traction beams in the traction beam group, and then remove the height adjustment pad from between the top mounting plate and the bottom mounting plate and between the two traction beams in the traction beam group;

[0021] SB4: First install the traction buffer between the top mounting plate and the bottom mounting plate and between the two traction beams in the traction beam group, and then install the height adjustment pad between the top mounting plate and the bottom mounting plate and between the two traction beams in the traction beam group. At this time, the height adjustment pad is located directly below the traction buffer, and the height of the coupler body rises;

[0022] SB5: First, fit the top surface of the equalizing beam to the bottom surface of the coupler body, then install the equalizing beam on the fixed impact seat through the hanger, and finally install the bottom mounting plate on the bottom end of the traction beam and the locomotive.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1. The present invention provides a double-height coupler. When the height adjustment pad is located directly below the traction buffer, the coupler body is located at a higher position. When the height adjustment pad is located directly above the traction buffer, the coupler body is located at a lower position. By using the height adjustment method of the double-height coupler provided by the present invention, the position of the height adjustment pad and the position of the traction buffer are exchanged, so that the coupler body can be adjusted back and forth between two heights, so that the double-height coupler provided by the present invention is suitable for both export locomotives and domestic locomotives.

[0025] 2. In the present invention, the traction buffer can buffer the vibration between the coupler body and the locomotive.

[0026] 3. In the present invention, the two opposite surfaces of a pair of traction beams in the traction beam group can prevent the height adjustment pad and the traction buffer from being displaced along the width direction thereof.

[0027] 4. In the present invention, a pair of opposite surfaces of the slave plate seat in the slave plate seat assembly can prevent the height adjustment pad and the traction buffer from being displaced along their length direction.

[0028] 5. In the present invention, the equalizing beam installed on the fixed impact seat or the detachable impact seat through the suspension rod can limit the height of the coupler body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 This is an overall structural diagram of Example 1 of the present invention when the height adjustment pad is located directly above the buffer hook;

[0031] Figure 2 This is an overall structural diagram of Example 1 of the present invention when the height adjustment pad is located directly below the buffer hook;

[0032] Figure 3 It is an overall structural diagram of the traction beam assembly, the follower plate seat assembly, the bottom mounting plate and the height adjustment pad in Example 1 of the present invention;

[0033] Figure 4 This is an overall structural diagram of the top mounting plate and the traction beam assembly in Example 1 of the present invention;

[0034] Figure 5 This is an overall structural diagram of the buffer coupler in Example 1 of the present invention;

[0035] Figure 6 It is an overall flow chart of the method for lowering the height of a coupler in Embodiment 2 of the present invention;

[0036] Figure 7 This is an overall flow chart of the method for raising the coupler in Embodiment 2 of the present invention;

[0037] In the figure: 1-top mounting plate; 2-fixed impact seat; 3-detachable impact seat; 4-buffer coupler; 5-balance beam; 6-suspender rod; 7-bottom mounting plate; 8-traction beam; 9-slave plate seat; 10-height adjustment pad; 11-bottom boss; 12-threaded mounting seat; 13-top boss; 401-coupler body; 402-traction buffer; 4021-buffer device; 4022-hook tail frame; 4023-hook tail pin. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0042] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0043] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0044] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0045] Embodiment 1:

[0046] like Figures 1 to 5 As shown, a double-height coupler comprises: a top mounting plate 1; the top mounting plate 1 is horizontally arranged and fixedly mounted on a locomotive; a traction beam group; the traction beam group comprises a pair of traction beams 8 which are vertically arranged and symmetrical about a vertical plane, and the top ends of the traction beams 8 are fixedly mounted on the top mounting plate 1; further comprising: a bottom mounting plate 7; the bottom mounting plate 7 is horizontally arranged and located directly below the top mounting plate 1, and the bottom end of the traction beam 8 is detachably mounted on the bottom mounting plate 7 through a screw and a screw hole, and the bottom mounting plate 7 is detachably mounted on a locomotive; a height adjustment pad 10; The height adjustment pad 10 can be detachably mounted between the top mounting plate 1 and the bottom mounting plate 7 and can also be detachably mounted between the two traction beams 8 in the traction beam group; the buffer coupler 4; the buffer coupler 4 can be detachably mounted between the top mounting plate 1 and the bottom mounting plate 7 and can also be detachably mounted between the two traction beams 8 in the traction beam group; the sum of the height of the height adjustment pad 10 and the height of the buffer coupler 4 is equal to the distance between the top mounting plate 1 and the bottom mounting plate 7, and the height adjustment pad 10 can be located either directly below the buffer coupler 4 or directly above the buffer coupler 4.

[0047] Specifically, a top boss 13 is installed on the bottom surface of the top mounting plate 1, and four top fixing screw holes distributed in a 2*2 matrix are opened on the top boss 13; a bottom boss 11 is installed on the top surface of the bottom mounting plate 7, and four bottom fixing screw holes distributed in a 2*2 matrix are opened on the bottom boss 11; the height adjustment pad 10 is a quadrangular prism-shaped cylindrical structure, and four pad fixing screw holes distributed in a 2*2 matrix are opened on one side wall of the height adjustment pad 10; it also includes four pad fixing screws, and the pad fixing screw holes can be connected together with the top fixing screw holes one-to-one through the pad fixing screws, and can also be connected together with the bottom fixing screw holes one-to-one through the pad fixing screws.

[0048] In this embodiment, the buffer coupler 4 includes a coupler body 401 and a traction buffer 402; the hook tail of the coupler body 401 is installed on the traction buffer 402; the height of the traction buffer 402 is the height of the buffer coupler 4, the traction buffer 402 can be detachably installed between the top mounting plate 1 and the bottom mounting plate 7 and can be detachably installed between the two traction beams 8 in the traction beam group, and the height adjustment pad 10 can be located either directly below the traction buffer 402 or directly above the traction buffer 402.

[0049] Specifically, the traction buffer 402 includes a buffer device 4021, a hook tail frame 4022 and a hook tail pin 4023; the buffer device 4021 is an elastic body (such as a rubber block, etc.), the hook tail of the coupler body 401 is connected to the buffer device 4021, the hook tail frame 4022 is fixedly sleeved outside the buffer device 4021, and the hook tail pin 4023 is installed on the hook tail frame 4022 and passes through the hook tail of the coupler body 401.

[0050] In this embodiment, two opposite surfaces of a pair of traction beams 8 in the traction beam group are respectively in contact with both sides of the height adjustment pad 10 in the width direction and are also respectively in contact with both sides of the traction buffer 402 in the width direction.

[0051] In addition, before the coupler body 401 and the traction buffer 402 are installed, the traction buffer 402 is in a compressed state. After the traction buffer 402 is installed in place, the traction buffer 402 is restored to its length, and the seat clips at both ends of the traction buffer 402 are fixed between the front and rear plate seats 9.

[0052] In this embodiment, it also includes a slave plate seat group; the slave plate seat group includes a pair of slave plate seats 9 that are vertically arranged and symmetrical about the vertical plane; the slave plate seat group is detachably installed on the two opposite sides of a pair of traction beams 8 in the traction beam group, and the two opposite sides of a pair of slave plate seats 9 in the slave plate seat group are respectively fitted with the two sides of the length direction of the height adjustment pad 10 and the two sides of the length direction of the traction buffer 402.

[0053] Specifically, the slave plate seat 9 is detachably mounted on the traction beam 8 through screws and screw holes.

[0054] In this embodiment, a height fixing mechanism is also included; the height fixing mechanism includes a fixed impact seat 2, a detachable impact seat 3 and a balancing beam 5; the fixed impact seat 2 is fixedly mounted on the top mounting plate 1; the detachable impact seat 3 is detachably mounted on the traction beam group and is located directly below the fixed impact seat 2; the balancing beam 5 is detachably mounted on the fixed impact seat 2 or the detachable impact seat 3; when the height adjustment pad 10 is located directly below the traction buffer 402, the detachable impact seat 3 is not installed on the traction beam group, and the bottom surface of the coupler body 401 is in contact with the top surface of the balancing beam 5 installed on the fixed impact seat 2; when the height adjustment pad 10 is located directly above the traction buffer 402, the detachable impact seat 3 is installed on the traction beam group, and the bottom surface of the coupler body 401 is in contact with the top surface of the balancing beam 5 installed on the detachable impact seat 3.

[0055] Specifically, a pair of traction beams 8 in the traction beam group are both installed with threaded mounting seats 12, and both ends of the detachable impact seat 3 in the length direction are respectively installed on the threaded mounting seats 12 on the pair of traction beams 8 in the traction beam group through screws.

[0056] In this embodiment, it also includes a suspension rod 6, and the balancing beam 5 is detachably mounted on the fixed impact seat 2 or the detachable impact seat 3 through the suspension rod 6; when the balancing beam 5 is mounted on the fixed impact seat 2, the top end of the suspension rod 6 is detachably mounted on the fixed impact seat 2, and the balancing beam 5 is detachably mounted on the bottom end of the suspension rod 6; when the balancing beam 5 is mounted on the detachable impact seat 3, the top end of the suspension rod 6 is detachably mounted on the detachable impact seat 3, and the balancing beam 5 is detachably mounted on the bottom end of the suspension rod 6.

[0057] Specifically, a pair of suspension rods 6 are provided, and the two ends of the equalizing beam 5 in the length direction can be respectively installed on the two ends of the detachable impact seat 3 in the length direction through the suspension rods 6, and can also be respectively installed on the two ends of the fixed impact seat 2 in the length direction through the suspension rods 6.

[0058] Embodiment 2:

[0059] like Figure 6 As shown, a height adjustment method for a dual-height coupler is applied to the dual-height coupler described in any one of Embodiment 1, including a coupler lowering method applied to a case where the height adjustment pad 10 is located directly below the traction buffer 402, the coupler lowering method including method A, and the method A includes the following steps:

[0060] SA1: First remove the bottom mounting plate 7 from the bottom end of the traction beam 8 and the locomotive, and then remove the height adjustment pad 10 from between the top mounting plate 1 and the bottom mounting plate 7 and between the two traction beams 8 in the traction beam group;

[0061] SA2: First remove the equalizing beam 5 and the suspension rod 6 from the fixed impact seat 2, then remove the plate seat 9 from the traction beam 8, and finally remove the traction buffer 402 from between the top mounting plate 1 and the bottom mounting plate 7 and between the two traction beams 8 in the traction beam group;

[0062] Specifically, first remove the equalizing beam 5, then remove the hook tail pin 4023 between the hook tail frame 4022 and the coupler body 401, and then use a compression tool to compress the traction buffer 402 to separate the traction buffer 402 from the front and rear plate seats 9, and then remove the traction buffer 402; the compression tool is a prior art and will not be described in detail here.

[0063] SA3: First, install the height adjustment pad 10 between the top mounting plate 1 and the bottom mounting plate 7 and between the two traction beams 8 in the traction beam group, and then install the traction buffer 402 between the top mounting plate 1 and the bottom mounting plate 7 and between the two traction beams 8 in the traction beam group. At this time, the height adjustment pad 10 is located directly above the traction buffer 402, and the height of the coupler body 401 decreases;

[0064] Specifically, when the height adjustment pad 10 is installed on the top mounting plate 1 , the buffer coupler 4 and the bottom mounting plate 7 are installed together.

[0065] SA4: First, install the detachable impact seat 3 on the traction beam assembly, then fit the top surface of the equalizing beam 5 with the bottom surface of the coupler body 401, and finally install the equalizing beam 5 on the detachable impact seat 3 through the suspension rod 6;

[0066] SA5: Install the bottom mounting plate 7 on the bottom end of the traction beam 8 and on the locomotive.

[0067] In this embodiment, Figure 7 As shown, the method for raising the coupler is also included in the case where the height adjustment pad 10 is located directly above the traction buffer 402, and the method for raising the coupler includes method B, and the method B includes the following steps:

[0068] SB1: Remove the bottom mounting plate 7 from the bottom end of the traction beam 8 and the locomotive;

[0069] SB2: First remove the equalizing beam 5 and the suspension rod 6 from the detachable impact seat 3, then remove the detachable impact seat 3 from the traction beam assembly, and finally remove the plate seat 9 from the traction beam 8;

[0070] SB3: First remove the traction buffer 402 from between the top mounting plate 1 and the bottom mounting plate 7 and between the two traction beams 8 in the traction beam group, and then remove the height adjustment pad 10 from between the top mounting plate 1 and the bottom mounting plate 7 and between the two traction beams 8 in the traction beam group;

[0071] SB4: First, install the traction buffer 402 between the top mounting plate 1 and the bottom mounting plate 7 and between the two traction beams 8 in the traction beam group, and then install the height adjustment pad 10 between the top mounting plate 1 and the bottom mounting plate 7 and between the two traction beams 8 in the traction beam group. At this time, the height adjustment pad 10 is located directly below the traction buffer 402, and the height of the coupler body 401 rises;

[0072] Specifically, the traction buffer 402 is compressed using a compression tool. After the traction buffer 402 is installed in place, the compression tool is removed, the traction buffer 402 is restored to its length, and its two ends are clamped on the front and rear plate seats 9, and then the coupler body 401 and the coupler tail frame 4022 are connected together through the coupler tail pin 4023, so that the traction buffer 402 is always inside the coupler tail frame 4022.

[0073] In addition, when the height adjustment pad 10 is installed on the bottom mounting plate 7, the height adjustment pad 10 is first installed on the bottom mounting plate 7, and then the traction buffer 402 is placed on the height adjustment pad 10 for overall installation.

[0074] SB5: First, fit the top surface of the equalizing beam 5 with the bottom surface of the coupler body 401, then install the equalizing beam 5 on the fixed impact seat 2 through the suspension rod 6, and finally install the bottom mounting plate 7 on the bottom end of the traction beam 8 and the locomotive.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-height coupler, comprising: A top mounting plate (1); the top mounting plate (1) is arranged horizontally and fixedly mounted on the locomotive; Traction beam group; The traction beam group comprises a pair of traction beams (8) arranged vertically and symmetrically about a vertical plane, and the top ends of the traction beams (8) are fixedly mounted on a top mounting plate (1); It is characterized by further comprising: A bottom mounting plate (7); the bottom mounting plate (7) is arranged horizontally and is located directly below the top mounting plate (1); the bottom end of the traction beam (8) is detachably mounted on the bottom mounting plate (7); and the bottom mounting plate (7) is detachably mounted on the locomotive; A height adjustment pad (10); the height adjustment pad (10) is detachably mounted between the top mounting plate (1) and the bottom mounting plate (7) and is also detachably mounted between two traction beams (8) in the traction beam group; A buffer coupler (4); the buffer coupler (4) is detachably mounted between the top mounting plate (1) and the bottom mounting plate (7) and is also detachably mounted between two traction beams (8) in the traction beam group; The sum of the height of the height-adjusting pad (10) and the height of the buffer hook (4) is equal to the distance between the top mounting plate (1) and the bottom mounting plate (7); the height-adjusting pad (10) can be located either directly below the buffer hook (4) or directly above the buffer hook (4).

2. A dual-height coupler according to claim 1, characterized in that: The buffer coupler (4) comprises a coupler body (401) and a traction buffer (402); The hook tail of the coupler body (401) is mounted on the traction buffer (402); The height of the traction buffer (402) is the same as the height of the buffer coupler (4); the traction buffer (402) can be detachably mounted between the top mounting plate (1) and the bottom mounting plate (7) and can also be detachably mounted between two traction beams (8) in the traction beam group; the height adjustment pad (10) can be located either directly below the traction buffer (402) or directly above the traction buffer (402).

3. A dual-height coupler according to claim 2, characterized in that: The two opposite surfaces on a pair of traction beams (8) in the traction beam group are respectively fitted to both sides of the height adjustment pad (10) in the width direction and are also respectively fitted to both sides of the traction buffer (402) in the width direction.

4. A dual-height coupler according to claim 3, characterized in that: Also included is a slave plate seat set; The slave plate seat group comprises a pair of slave plate seats (9) which are arranged vertically and symmetrical with respect to a vertical plane; A pair of traction beams (8) in the traction beam group are detachably mounted with a sub-plate seat group on both opposite sides, and a pair of sub-plate seats (9) in the sub-plate seat group are respectively fitted with both sides of the length direction of the height adjustment pad (10) and the length direction of the traction buffer (402).

5. A dual-height coupler according to claim 2, characterized in that: It also includes a height fixing mechanism; The height fixing mechanism comprises a fixed impact seat (2), a detachable impact seat (3) and a balance beam (5); The fixed impact seat (2) is fixedly mounted on the top mounting plate (1); The detachable impact seat (3) is detachably mounted on the traction beam assembly and is located directly below the fixed impact seat (2); The equalizing beam (5) is detachably mounted on the fixed impact seat (2) or the detachable impact seat (3); When the height adjustment pad (10) is located directly below the traction buffer (402), the detachable impact seat (3) is not installed on the traction beam assembly, and the bottom surface of the coupler body (401) is in contact with the top surface of the equalizing beam (5) installed on the fixed impact seat (2); When the height adjustment pad (10) is located directly above the traction buffer (402), the detachable impact seat (3) is installed on the traction beam assembly, and the bottom surface of the coupler body (401) fits with the top surface of the equalizing beam (5) installed on the detachable impact seat (3).

6. A dual-height coupler according to claim 5, characterized in that: It also includes a suspension rod (6), and the equalizing beam (5) is detachably mounted on the fixed impact seat (2) or the detachable impact seat (3) through the suspension rod (6); When the balancing beam (5) is mounted on the fixed impact seat (2), the top end of the suspension rod (6) is detachably mounted on the fixed impact seat (2), and the balancing beam (5) is detachably mounted on the bottom end of the suspension rod (6); When the equalizing beam (5) is mounted on the detachable impact seat (3), the top end of the suspension rod (6) is detachably mounted on the detachable impact seat (3), and the equalizing beam (5) is detachably mounted on the bottom end of the suspension rod (6).

7. A method for adjusting the height of a double-height coupler, applied to the double-height coupler according to any one of claims 1 to 6, characterized in that: The invention comprises a method for lowering a coupler applied to a case where a height adjustment pad (10) is located directly below a traction buffer (402), the method for lowering the coupler comprising method A, and the method A comprises the following steps: SA1: First, remove the bottom mounting plate (7) from the bottom end of the traction beam (8) and the locomotive, and then remove the height adjustment pad (10) from between the top mounting plate (1) and the bottom mounting plate (7) and between the two traction beams (8) in the traction beam group; SA2: First, remove the equalizing beam (5) and the suspension rod (6) from the fixed impact seat (2), then remove the plate seat (9) from the traction beam (8), and finally remove the traction buffer (402) from between the top mounting plate (1) and the bottom mounting plate (7) and between the two traction beams (8) in the traction beam group; SA3: First, install the height adjustment pad (10) between the top mounting plate (1) and the bottom mounting plate (7) and between the two traction beams (8) in the traction beam group, and then install the traction buffer (402) between the top mounting plate (1) and the bottom mounting plate (7) and between the two traction beams (8) in the traction beam group. At this time, the height adjustment pad (10) is located directly above the traction buffer (402), and the height of the coupler body (401) is reduced; SA4: First, install the detachable impact seat (3) on the traction beam assembly, then fit the top surface of the equalizing beam (5) with the bottom surface of the coupler body (401), and finally install the equalizing beam (5) on the detachable impact seat (3) through the suspension rod (6); SA5: Install the bottom mounting plate (7) on the bottom end of the traction beam (8) and on the locomotive.

8. A height adjustment method for a dual-height coupler according to claim 7, characterized in that: Also included is a coupler raising method applied when the height adjustment pad (10) is located directly above the traction buffer (402), the coupler raising method comprising method B, and the method B comprises the following steps: SB1: Remove the bottom mounting plate (7) from the bottom end of the traction beam (8) and the locomotive; SB2: First remove the equalizing beam (5) and the suspension rod (6) from the detachable impact seat (3), then remove the detachable impact seat (3) from the traction beam assembly, and finally remove the plate seat (9) from the traction beam (8); SB3: first remove the traction buffer (402) from between the top mounting plate (1) and the bottom mounting plate (7) and between the two traction beams (8) in the traction beam group, and then remove the height adjustment pad (10) from between the top mounting plate (1) and the bottom mounting plate (7) and between the two traction beams (8) in the traction beam group; SB4: First, install the traction buffer (402) between the top mounting plate (1) and the bottom mounting plate (7) and between the two traction beams (8) in the traction beam group, and then install the height adjustment pad (10) between the top mounting plate (1) and the bottom mounting plate (7) and between the two traction beams (8) in the traction beam group. At this time, the height adjustment pad (10) is located directly below the traction buffer (402), and the height of the coupler body (401) rises; SB5: First, fit the top surface of the equalizing beam (5) to the bottom surface of the coupler body (401), then install the equalizing beam (5) on the fixed impact seat (2) through the suspension rod (6), and finally install the bottom mounting plate (7) on the bottom end of the traction beam (8) and the locomotive.

Images