Railway wagon 17-type coupler height adjusting device

Abstract

The utility model discloses a railway wagon 17-type coupler height adjusting device which comprises a pair of transversely-arranged U-shaped fixing lugs, through notches are formed in the side walls of U-shaped openings of the U-shaped fixing lugs, and the U-shaped fixing lugs are connected to a fixing base of a wagon coupler in a sleeved mode in the direction of the U-shaped openings. The tops of the U-shaped fixing lugs are connected, a base plate is fixedly connected to the top connecting faces of the U-shaped fixing lugs, and a height adjusting gasket is arranged between the top connecting faces of the U-shaped fixing lugs and the base plate. The base plate is connected below the car coupler on the lower side of the horizontal position of a truck through the U-shaped fixing lug, so that the mutual hooking difference between carriages is eliminated, the difference value of the mutual hooking difference is adjusted by cushioning the adjusting gasket below the base plate, the operation is simple and convenient, the device is hooped on the fixing base of the car coupler through the U-shaped fixing lug ring, the connection is firm, the possibility of falling off is low, and the service life is long. And the driving safety of the railway wagon is effectively ensured.

Description

Technical Field

[0001] This utility model belongs to the field of train maintenance technology, specifically a height adjustment device for coupler of a Type 17 railway freight car. Background Technology

[0002] Multiple carriages of railway freight cars are usually connected by couplers. However, due to factors such as the weight of the freight car or structural deformation of the coupler connection, the horizontal height of the couplers of two train cars may differ. For example, if the difference in height of the commonly used Type 17 coupler is too large, i.e. the mutual coupling difference exceeds the limit, it will cause the overlap of the inner sides of the coupler tongues to be reduced, causing the coupler buffer to be subjected to longitudinal force, resulting in a large additional bending moment. This can lead to uneven wear of the coupler tongues, increased stress at the connection of the coupler tail frame, and may also cause the distance between the inner sides of the coupler tongue and the coupler arm to increase instantaneously, causing the coupler to decouple vertically during train operation, resulting in an automatic coupler separation accident. Therefore, when the mutual coupling difference exceeds the limit, it is necessary to adjust the mutual coupling difference in time to eliminate safety hazards. Utility Model Content

[0003] The purpose of this utility model is to provide a height adjustment device for the coupler of a Type 17 railway freight car, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a railway freight car coupler height adjustment device for type 17, comprising a pair of transversely arranged U-shaped fixing ears, wherein the side wall of the U-shaped opening of the U-shaped fixing ear is provided with a through slot, the U-shaped fixing ear is sleeved on the fixed base of the freight car coupler along the direction of the U-shaped opening and the U-shaped fixing ear is fixed by fixing bolts and nuts passing through the slot, the tops of the pair of U-shaped fixing ears are connected and a pad is fixedly connected to the top connecting surface of the pair of U-shaped fixing ears, and a height adjustment shim is provided between the top connecting surface of the U-shaped fixing ear and the pad.

[0005] Furthermore, a fixing groove is provided on the upper surface of the top connecting surface of the U-shaped fixing ear, and the height adjustment shim and the pad are fixedly connected in the fixing groove.

[0006] By setting a fixing groove, the connection structure of the top connecting surface of the pad and the U-shaped fixing lug is prevented from being damaged by long-term friction between the truck coupler and the pad during truck operation, thus preventing the pad from falling off.

[0007] Furthermore, the top connecting surface of the pad and the U-shaped fixing ear is provided with an inclined surface on the side arm facing the U-shaped opening of the U-shaped fixing ear.

[0008] The inclined surface facilitates the insertion of the device below the truck coupler.

[0009] Further, the top surface of the pad plate is provided with a pair of connecting grooves, and the connecting grooves are respectively arranged above the pair of U-shaped fixing ears, the connecting grooves are clamped with connecting plates, and the thickness of the connecting plates is not greater than the depth of the connecting grooves, and one end of the connecting plate is fixedly connected to the U-shaped fixing ear through the fixing bolt and the nut.

[0010] The pad plate is fixed through the connecting plate, convenient operation, and work efficiency can be improved.

[0011] Further, the bottom of the connecting plate is provided with a plurality of positioning columns, and the bottom of the connecting groove is provided with a positioning groove in the corresponding position of the positioning column.

[0012] The positioning column is clamped in the positioning groove, and the stability of the connecting plate to the pad plate is further improved.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses a U-shaped fixing ear is connected in the lower side car hook below of truck horizontal position lower of pad plate to eliminate the mutual hook difference between the car, and the difference of mutual hook difference is adjusted through the adjusting washer under the pad plate, and the operation is simple and convenient, and the device is through the U-shaped fixing ear hoop on the fixed base of car hook, and the connection is firm, and the device is not easy to fall off, and the driving safety of railway truck is effectively guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of railway truck 17 type car hook height adjusting device provided by the utility model embodiment;

[0016] Figure 2 It is the explosion view of railway truck 17 type car hook height adjusting device provided by the utility model embodiment;

[0017] Figure 3 It is the pad plate structure schematic diagram provided by the utility model embodiment;

[0018] Figure 4 It is the connecting plate structure schematic diagram provided by the utility model embodiment;

[0019] In the drawing, 1-U-shaped fixing ear, 2-fixing bolt, 3-nut, 4-height adjusting washer, 5-pad plate, 6-connecting plate, 11-groove, 12-fixing groove, 51-connecting groove, 52-positioning groove, 61-positioning column. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0021] Please refer to Figures 1-4 The present utility model provides a technical scheme: a railway freight car 17 type car hook height adjusting device, including a pair of transversely arranged U-shaped fixed lug 1, the U-shaped fixed lug 1's U-shaped opening place side wall is provided with the through slot 11, the U-shaped fixed lug 1 is along the U-shaped opening direction and is sleeved on the fixed base of car hook and the U-shaped fixed lug 1 is fixed through the fixed bolt 2 and the nut 3 that are arranged in the slot 11, a pair of the top of U-shaped fixed lug 1 is connected and the top connecting surface of U-shaped fixed lug 1 is provided with fixed groove 12 on the upper end surface, the fixed groove 12 is provided with the height adjusting washer 4 and the pad 5 matched with the fixed groove 12, and the height adjusting washer 4 is arranged between the pad 5 and the bottom surface of fixed groove 12.

[0022] In order to facilitate the device to be inserted below the car hook, the top connecting surface of the pad 5 and the U-shaped fixed lug 1 is provided with an inclined surface towards the side arm of the U-shaped opening direction of the U-shaped fixed lug 1.

[0023] The top surface of the pad 5 is provided with a pair of connecting grooves 51, and the pair of connecting grooves 51 are respectively arranged above the pair of U-shaped fixed lugs 1. A connecting plate 6 is clamped in the connecting grooves 51, and the thickness of the connecting plate 6 is not greater than the depth of the connecting grooves 51. A plurality of positioning columns 61 are arranged at the bottom of the connecting plate 6. A positioning groove 52 is arranged at the bottom of the connecting grooves 51 corresponding to the positioning columns 61. The positioning columns 61 are clamped in the positioning groove 52, which improves the stability of the connecting plate 6 to the pad 5. A through hole is arranged at one end of the connecting plate 6, and the through hole corresponds to the slot 11. The fixed bolt 2 passes through the slot 11 of the U-shaped fixed lug 1 and the through hole of the connecting plate 6, and the connecting plate 6 is fixed on the U-shaped fixed lug 1 by the nut 3.

[0024] In the specific implementation process, when the mutual hook difference between the railway freight car compartments exceeds the limit, first measure the mutual hook difference value, select appropriate height adjusting washer 4 and pad 5 according to the mutual hook difference value, and place them in the fixed groove 12 in turn. Then, clamp the connecting plate 6 in the connecting groove 51, align the positioning column 61 with the positioning groove 52, and then insert the device into the lower side of the car hook. After the height of the car hook is adjusted, the fixed bolt 2 is arranged in the slot 11 of the U-shaped opening end of the two U-shaped fixed lugs 1, and the device is wrapped around the fixed base of the car hook to eliminate the mutual hook difference between the railway freight car compartments.

[0025] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A height adjustment device for coupler of a Type 17 railway freight car, characterized in that: It includes a pair of horizontally arranged U-shaped fixing ears. The side wall of the U-shaped opening of the U-shaped fixing ear is provided with a through slot. The U-shaped fixing ear is sleeved on the fixing base of the truck coupler along the direction of the U-shaped opening and is fixed by fixing bolts and nuts passing through the slot. The tops of the pair of U-shaped fixing ears are connected and a pad is fixedly connected to the top connecting surface of the pair of U-shaped fixing ears. An adjustment shim is provided between the top connecting surface of the U-shaped fixing ear and the pad.

2. The railway freight car type 17 coupler height adjustment device according to claim 1, characterized in that: A fixing groove is provided on the upper surface of the top connecting surface of the U-shaped fixing ear, and the height adjustment shim and the pad are fixedly connected in the fixing groove.

3. The railway freight car type 17 coupler height adjustment device according to claim 2, characterized in that: The top connecting surface of the pad and the U-shaped fixing ear is provided with an inclined surface on the side arm facing the U-shaped opening of the U-shaped fixing ear.

4. The railway freight car type 17 coupler height adjustment device according to claim 2, characterized in that: The top surface of the pad is provided with a pair of connecting grooves, and the pair of connecting grooves are respectively located directly above the pair of U-shaped fixing ears. A connecting plate is snapped into the connecting groove, and the thickness of the connecting plate is not greater than the depth of the connecting groove. One end of the connecting plate is fixedly connected to the U-shaped fixing ear by the fixing bolt and nut.

5. The railway freight car type 17 coupler height adjustment device according to claim 4, characterized in that: The bottom of the connecting plate is provided with multiple positioning posts, and the bottom of the connecting groove is provided with positioning grooves at positions corresponding to the positioning posts.

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