Emergency transfer device for railway excavator

Abstract

The utility model relates to the technical field of rail transit construction equipment, and provides a railway excavator emergency transfer device which comprises a support, a wheel shaft, a walking wheel and a connecting rod, a profiling notch is reserved in the upper portion of the support and used for containing a driving guide wheel of a rapid walking crawler excavator, and the wheel shaft and the walking wheel are installed on the lower portion of the support. The connecting rod connects the two sets of supports to enable all the components to form a whole, and the connecting rod keeps the track distance of the track guide wheels on the two sides matched with the track gauge. According to the transfer device, the excavator is moved out of a line in time in a pushing or traction mode, rapid evacuation is achieved, and railway driving safety is prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the field of rail transit construction equipment technology, specifically to an emergency transfer device for railway excavators. Background Technology

[0002] Tracked excavators are frequently used for construction work on existing railway lines during railway maintenance. Some of these excavators have a rapid movement capability (when moving between work sites, the front and rear guide wheels are lowered to lift the excavator and suspend the tracks; one set of guide wheels is the drive wheel, and the other set is the driven wheel. The drive wheel is hydraulically driven, enabling rapid movement of the excavator). When such a tracked excavator experiences engine failure during construction and cannot move autonomously, it needs to be promptly removed from the track to a safe distance to ensure railway traffic safety. Due to the excavator's large size, when the tracks fall onto the rails, its structure prevents it from being moved off the track by pushing or towing as easily as wheeled excavators. Even when the front and rear guide wheels are lowered to suspend the tracks, the drive wheel locks and cannot rotate freely like the driven wheel, making it impossible to move off the track by pushing or towing. Ultimately, conventional methods require the assistance of large equipment for removal, resulting in low efficiency and high operating costs. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an emergency transfer device for railway excavators. The emergency transfer device for railway excavators can solve the problem that the drive wheel of a tracked excavator with a fast travel function locks up and cannot rotate freely after the guide wheel is lowered. The excavator can be moved off the track in time by pushing or towing, so as to achieve rapid evacuation and avoid affecting railway traffic safety.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an emergency transfer device for railway excavators, comprising a bracket, axle, traveling wheels, and connecting rods. The upper part of the bracket has a pre-reserved contoured notch for placing the active guide wheel of a fast-moving tracked excavator. The lower part of the bracket is equipped with the axle and traveling wheels. The connecting rods connect two sets of brackets to make all components a single unit. The connecting rods maintain the wheel spacing of the guide wheels on both sides matching the track gauge.

[0005] In the above technical solution, the wheel axle and the connecting rod are connected by a thread, and the wheel axle can be quickly installed and disassembled with the connecting rod.

[0006] In the above technical solution, the inner side of the running wheel is provided with a rim. After the running wheel is installed on the axle, it can rotate freely. When the whole device moves on the track, the rim of the running wheel plays a guiding role.

[0007] This utility model of an emergency transfer device for railway excavators has the following beneficial effects:

[0008] 1. The structure is reasonable and can be transferred to a line outside the main line via a turnout, making the transfer of faulty excavators efficient;

[0009] 2. Lightweight and low-cost, it can be quickly transported to the site and assembled for use;

[0010] 3. The purely mechanical structure has high reliability and low rolling resistance, and can be pushed manually after supporting a faulty excavator. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the emergency transfer device for railway excavators of this utility model.

[0012] Figure 2 This is a schematic diagram of the support structure in this utility model.

[0013] Figure 3 This is a schematic diagram of the working state of the emergency transfer device for railway excavators of this utility model. Detailed Implementation

[0014] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0015] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0017] like Figure 1 , Figure 2 As shown in the figure, this utility model embodiment provides an emergency transfer device for railway excavators, which mainly consists of a support 1, an axle 2, a traveling wheel 3, and a connecting rod 4.

[0018] The upper part of the bracket 1 has a pre-reserved contoured notch to accommodate the drive guide wheel of the high-speed crawler excavator, and the lower part is equipped with wheel axle 2 and travel wheel 3. The side is equipped with connecting rod 4 to combine the two brackets into one unit. Specifically, the bracket 1 includes two side plates 1.1, four support plates 1.2, two support plates 1.3 and two stiffening plates 1.4. The two sides of the support plates 1.2 are respectively connected to the two side plates 1.1. The support plates 1.2 have contoured notches to adapt to the shape of the excavator guide wheel rim. Each support plate 1.3 is respectively connected to the two support plates 1.2 and one side plate 1.1. The position of the two support plates 1.3 is adapted to the shape of the guide wheel tread. The two stiffening plates 1.4 play a reinforcing role under the two support plates 1.3.

[0019] The axle 2 is fitted with the running wheels 3 and bears the overall weight.

[0020] After the traveling wheel 3 is installed on the wheel axle 2, it rotates freely. When the whole device moves on the track, the rim of the traveling wheel plays a guiding role.

[0021] Link 4 connects two sets of brackets, making all components a single unit, while maintaining the wheel spacing of the guide wheels on both sides to match the track gauge. The wheel axle 2 is threadedly connected to link 4, enabling quick installation and disassembly of wheel axle 2 and link 4.

[0022] like Figure 3 As shown, the working principle of this embodiment is as follows:

[0023] When a tracked excavator with high-speed travel capability encounters an engine failure and is unable to move autonomously during construction work on railway tracks, the railway excavator emergency transfer device 5 is placed under the excavator's active guide wheel 6. The excavator lowers its front and rear guide wheels to suspend the tracks, the driven guide wheel 7 rests directly on the rail, and the active guide wheel rests on the support of the railway excavator emergency transfer device. The two active guide wheels are placed at the contoured notches of the two side supports. Due to their own weight, the active guide wheels and the transfer device become an integral part and will not fall off. At this time, the excavator can move forward or backward freely on the railway track 8. With the help of other power-driven equipment, the excavator can be moved out of the operating line in a timely manner by pushing or towing.

[0024] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An emergency transfer device for railway excavators, characterized in that: The system includes a bracket, axle, running wheels, and connecting rods. The upper part of the bracket has a pre-recessed contoured notch for placing the active guide wheel of a high-speed crawler excavator. The lower part of the bracket is equipped with the axle and running wheels. The connecting rods connect the two sets of brackets to make the components a single unit. The connecting rods keep the wheel spacing of the guide wheels on both sides of the track matching the track gauge.

2. The emergency transfer device for railway excavators according to claim 1, characterized in that: The wheel axle and the connecting rod are threaded together, enabling quick installation and disassembly of the wheel axle and the connecting rod.

3. The emergency transfer device for railway excavators according to claim 1, characterized in that: The inner side of the running wheel is provided with a rim. After the running wheel is installed on the axle, it can rotate freely. When the whole device moves on the track, the rim of the running wheel plays a guiding role.

4. The emergency transfer device for railway excavators according to claim 1, characterized in that: The bracket includes two side plates, four support plates, two support plates, and two stiffening plates. The two sides of the support plates are connected to the two side plates respectively. The support plates have contoured notches to adapt to the shape of the excavator guide wheel rim. Each support plate is connected to two support plates and one side plate respectively. The positions of the two support plates are adapted to the shape of the guide wheel tread. The two stiffening plates play a reinforcing role at the bottom of the two support plates.

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