Traction mechanism for shot blasting of passenger train

Abstract

The traction mechanism for shot blasting of the passenger train comprises a driving traction device, a driven traction device, a rigid traction rigging, a rigid connecting piece and a rigging tensioning device, one end of the rigid traction rigging is connected with the driving traction device, and the other end of the rigid traction rigging is connected with the driven traction device; one end of the rigid connecting piece is installed on the rigid traction rigging, the other end of the rigid connecting piece is installed on the passenger train, and the active traction device stably transmits traction force to the passenger train by driving the rigid traction rigging and then through the rigid connecting piece so as to drive the passenger train to move. The rigging tensioning device is used for ensuring that the rigid traction rigging keeps proper tension in the using process.

Description

Technical Field

[0001] The present application relates to the field of traction mechanisms, and in particular to a traction mechanism for shot blasting of railway passenger cars. Background Art

[0002] During the repair process of railway passenger cars, the thorough removal of the car body's exterior paint and putty coating is crucial. Traditionally, this step is primarily accomplished using shot blasting equipment. Currently, the shot blasting equipment commonly used in the railway industry is primarily categorized into two types: manual and mechanical. Manual shot blasting involves a worker using a handheld spray gun to remove the coating by ejecting steel shot. While this method allows for more precise control of deformation during shot blasting, it is extremely labor-intensive, and therefore currently only used by a small number of companies.

[0003] Compared to manual shot blasting, mechanical shot blasting relies on a traction device to move the vehicle body at a constant speed, while a mechanical shot blaster continuously ejects steel shot from a fixed position to clean the coating. However, in actual application, mechanical shot blasting often results in inconsistent blasting times on the vehicle's exterior surface due to uneven vehicle movement speeds. This can lead to problems such as over-blasting and abnormal vehicle deformation. This unevenness can be exacerbated by instability in the design or operation of the traction device during vehicle movement.

[0004] Existing mechanical shot blasting traction devices mostly adopt the structure of drum + wire rope + pulley. In this structure, the traction wire rope is connected to the car body through a soft connection (such as a wire rope), and relies on the drive of the drum motor to drive the car body to move. However, this traction method has many shortcomings. First of all, since the car body will be subjected to a certain amount of shot blasting resistance during the shot blasting process, and there are often steel shots, screws, wood chips and other debris on the shot blasting table track, these factors will cause the car body to produce obvious setbacks during the traction process. When the car body is setback, the shot blaster still blasts normally, resulting in the car body in the setback area being hit by the steel shots for a longer time, thereby increasing the risk of wavy deformation of the car body.

[0005] Secondly, the lifespan of the traction wire rope in the drum + traction wire rope + pulley traction device is relatively short. Due to the high tensile forces it must withstand during use, the wire rope easily becomes too long and difficult to tension in a timely manner. This not only affects traction stability and accuracy but also increases the cost of wire rope replacement. In particular, a 20mm diameter wire rope needs to be replaced annually, which undoubtedly adds a significant expense to the maintenance process at the railway coach factory.

[0006] Furthermore, existing drum-type traction wire ropes generally lack a tensioning function, causing the wire rope to frequently become slack during use. This slack not only reduces traction efficiency but can also adversely affect the overall performance of the traction device.

[0007] In summary, the existing traction devices for railway passenger car shot blasting have obvious deficiencies in stability and accuracy, and a new traction mechanism is needed to overcome these defects. This application is proposed based on this background and aims to provide a traction mechanism that can stably and accurately pull railway passenger cars for shot blasting operations. Utility Model Content

[0008] The purpose of this application is to provide a traction mechanism for railway passenger car shot blasting that can stably and accurately pull the railway passenger car for shot blasting operations.

[0009] In order to achieve the above objectives, this application provides the following technical solutions:

[0010] A traction mechanism for shot blasting on a railway passenger car comprises an active traction device, a driven traction device, a rigid traction rigging, a rigid connector and a rigging tensioning device. One end of the rigid traction rigging is connected to the active traction device, and the other end of the rigid traction rigging is connected to the driven traction device. One end of the rigid connector is mounted on the rigid traction rigging and the other end is mounted on the railway passenger car. The active traction device drives the rigid traction rigging, and then transmits the traction force stably to the railway passenger car via the rigid connector, thereby driving the railway passenger car to move. The rigging tensioning device is used to ensure that the rigid traction rigging maintains appropriate tension during use.

[0011] In one embodiment, the active traction device includes a driving wheel, an active motor, an active bearing seat, an active rotating shaft, an active coupling and a driving wheel mounting frame, the active motor and the active bearing seat are mounted on the driving wheel mounting frame, the active motor is connected to the active rotating shaft through an active coupling, the active rotating shaft is mounted on the active bearing seat, the driving wheel is mounted on the active rotating shaft, and the active motor is used to drive the driving wheel to perform rotational motion.

[0012] In one embodiment, driving teeth are provided on the outer periphery of the driving wheel.

[0013] In one embodiment, the driven traction device includes a driven wheel, a driven rotating shaft, a driven bearing seat and a driven wheel mounting frame, the driven wheel is mounted on the driven rotating shaft, the driven rotating shaft is mounted on the driven bearing seat, and the driven bearing seat is mounted on the driven wheel mounting frame.

[0014] In one embodiment, the driven wheel mounting frame is provided with a slide groove for installing the driven bearing seat, the slide groove is provided with a convex rail, the driven bearing seat is provided with a concave rail corresponding to the convex rail, the driven bearing seat is installed on the convex rail of the slide groove through the concave rail, and the rigging tensioning device is used to drive the driven bearing seat to drive the driven wheel to perform tensioning movement.

[0015] In one embodiment, the rigging tensioning device includes a screw rod and a nut, wherein the screw rod is mounted on the nut, and the driven wheel is driven to perform tensioning movement by rotating the screw rod.

[0016] In one embodiment, the rigid connector includes a vertical portion and a horizontal portion, the vertical portion is connected to the rigid traction rigging via a U-shaped clamp and bolts, and the horizontal portion is connected to the railway coach via a round pin.

[0017] In one embodiment, the rigid traction rigging is an anchor chain.

[0018] The beneficial effects of this application are:

[0019] This application utilizes rigid traction rigging and rigid connectors to stably and accurately transmit the traction force generated by the active traction device to the railway passenger car. The rigid structural design effectively reduces vehicle body jerking caused by factors such as shot blasting resistance and track debris, thereby avoiding the wavy deformation of the vehicle body caused by jerking. This design ensures smooth movement of the vehicle body during shot blasting, improving the quality and efficiency of the shot blasting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A front view of a traction mechanism for shot blasting on a railway passenger car provided in one embodiment of the present application;

[0021] Figure 2 A top view of a traction mechanism for shot blasting on a railway passenger car provided in one embodiment of the present application;

[0022] Figure 3 A front view of an active traction device provided in one embodiment of the present application;

[0023] Figure 4 A front view of a driven traction device provided in one embodiment of the present application;

[0024] Description of reference numerals:

[0025] 1. Active traction device; 2. Driven traction device; 3. Rigid traction rigging; 4. Rigid connector; 5. Rigging tensioning device; 6. Railway passenger car;

[0026] 11. Driving wheel; 12. Driving motor; 13. Driving bearing seat; 14. Driving shaft; 15. Driving coupling; 16. Driving wheel mounting bracket;

[0027] 111, driving gear;

[0028] 21. Driven wheel; 22. Driven rotating shaft; 23. Driven bearing seat; 24. Driven wheel mounting bracket;

[0029] 241, slide; 2411, with convex rail;

[0030] 231, concave track;

[0031] 51. Screw rod; 52. Nut; DETAILED DESCRIPTION

[0032] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0033] like Figure 1 and Figure 2 As shown, a traction mechanism for shot blasting of a railway passenger car 6 includes an active traction device 1, a driven traction device 2, a rigid traction rigging 3, a rigid connector 4 and a rigging tensioning device 5. One end of the rigid traction rigging 3 is connected to the active traction device 1, and the other end of the rigid traction rigging 3 is connected to the driven traction device 2. One end of the rigid connector 4 is installed on the rigid traction rigging 3, and the other end is installed on the railway passenger car 6. The active traction device 1 drives the rigid traction rigging 3, and then transmits the traction force stably to the railway passenger car 6 through the rigid connector 4, thereby driving its movement. The rigging tensioning device 5 is used to ensure that the rigid traction rigging 3 maintains appropriate tension during use.

[0034] like Figure 4 As shown, in this embodiment, the active traction device 1 includes a driving wheel 11, an active motor 12, an active bearing seat 13, an active rotating shaft 14, an active coupling 15 and a driving wheel mounting frame 16. The active motor 12 and the active bearing seat 13 are mounted on the driving wheel mounting frame 16. The active motor 12 is connected to the active rotating shaft 14 through the active coupling 15. The active rotating shaft 14 is mounted on the active bearing seat 13. The driving wheel 11 is mounted on the active rotating shaft 14. When the active motor 12 is started, it will drive the driving wheel 11 to rotate.

[0035] like Figure 1 As shown, in order to increase friction and improve traction effect, the outer periphery of the driving wheel 11 is further provided with driving teeth 111, which can better engage with the rigid traction sling 3 to ensure stable transmission of traction force.

[0036] In one embodiment, the driven traction device 2 includes a driven wheel 21, a driven rotating shaft 22, a driven bearing seat 23 and a driven wheel mounting frame 24, the driven wheel 21 is mounted on the driven rotating shaft 22, the driven rotating shaft 22 is mounted on the driven bearing seat 23, and the driven bearing seat 23 is mounted on the driven wheel mounting frame 24.

[0037] like Figure 4As shown, to adjust the tension of the rigid traction rigging 3, the driven wheel mounting frame 24 is provided with a slide groove 241, within which a raised track 2411 is disposed. The driven bearing seat 23 is provided with a recessed track 231 corresponding to the raised track, allowing the driven bearing seat 23 to slide on the raised track of the slide groove 241 via the recessed track 231. This design allows the rigging tensioning device to drive the driven wheel 21 for tensioning by driving the driven bearing seat 23.

[0038] The rigging tensioner 5 ensures that the rigid traction rigging 3 maintains proper tension during use. In this embodiment, the rigging tensioner 5 comprises a screw 51 and a nut 52. The screw 51 is mounted on the nut 52. Rotating the screw 51 pushes the driven bearing seat 23 to slide on the raised track of the slideway 241, thereby adjusting the tension of the rigid traction rigging 3.

[0039] In one embodiment, the rigid connector 4 includes a vertical portion and a horizontal portion. The vertical portion is connected to the rigid traction rigging 3 via a U-shaped clamp and bolts, and the horizontal portion is connected to the railway coach 6 via a round pin.

[0040] In this embodiment, the rigid traction rigging 3 is made of anchor chain, which has high strength and durability and can withstand large traction without being easily deformed or broken.

[0041] Working principle:

[0042] When the driving motor 12 is activated, it drives the driving wheel 11 into rotational motion. Drive teeth 111, located on the outer periphery of the driving wheel 11, effectively engage with the rigid traction rigging 3, thereby stably transmitting traction force to the rigid traction rigging 3. The rigid traction rigging 3 then transmits the traction force through the rigid connector 4, driving the railway coach 6. Simultaneously, the rigging tensioning device 5, by adjusting the position of the lead screw 51 and nut 52, ensures that the rigid traction rigging 3 maintains appropriate tension during use, preventing traction instability caused by slack or over-tension.

[0043] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0044] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0045] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application described herein, for example, can be implemented in orders other than those illustrated or described herein. In addition, the terms "may include" and "have" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or apparatus.

[0046] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of this application.

Claims

1. A traction mechanism for shot blasting of railway passenger cars, characterized by: It includes active traction device, driven traction device, rigid traction rigging, rigid connector and rigging tensioning device. One end of the rigid traction sling is connected to the active traction device, and the other end of the rigid traction sling is connected to the driven traction device. One end of the rigid connector is mounted on the rigid traction sling, and the other end is mounted on the railway passenger car. The active traction device drives the rigid traction rigging and then stably transmits the traction force to the railway passenger car through the rigid connecting member, thereby driving the railway passenger car to move. The rigging tensioning device is used to ensure that the rigid traction rigging maintains appropriate tension during use.

2. A traction mechanism for railway passenger car shot blasting according to claim 1, characterized in that: The active traction device includes a driving wheel, an active motor, an active bearing seat, an active rotating shaft, an active coupling and a driving wheel mounting frame. The active motor and the active bearing seat are mounted on the driving wheel mounting frame. The active motor is connected to the active rotating shaft through an active coupling. The active rotating shaft is mounted on the active bearing seat. The driving wheel is mounted on the active rotating shaft. The active motor is used to drive the driving wheel to rotate.

3. A traction mechanism for railway passenger car shot blasting according to claim 2, characterized in that: The outer periphery of the driving wheel is provided with driving teeth.

4. A traction mechanism for shot blasting of a railway passenger car according to claim 1, characterized in that: The driven traction device includes a driven wheel, a driven rotating shaft, a driven bearing seat and a driven wheel mounting frame. The driven wheel is mounted on the driven rotating shaft, the driven rotating shaft is mounted on the driven bearing seat, and the driven bearing seat is mounted on the driven wheel mounting frame.

5. A traction mechanism for shot blasting of a railway passenger car according to claim 4, characterized in that: The driven wheel mounting frame is provided with a slide groove for installing the driven bearing seat, the slide groove is provided with a convex rail, and the driven bearing seat is provided with a concave rail corresponding to the convex rail. The driven bearing seat is installed on the convex rail of the slide groove through the concave rail, and the rigging tensioning device is used to drive the driven bearing seat to drive the driven wheel to perform tensioning movement.

6. A traction mechanism for shot blasting of a railway passenger car according to claim 1 or 5, characterized in that: The rigging tensioning device includes a screw rod and a nut. The screw rod is installed on the nut. The driven wheel is driven to perform tensioning movement by rotating the screw rod.

7. The traction mechanism for shot blasting of a railway passenger car according to claim 1, characterized in that: The rigid connector includes a vertical portion and a horizontal portion. The vertical portion is connected to the rigid traction rigging via a U-shaped clamp and bolts, and the horizontal portion is connected to the railway passenger car via a round pin.

8. The traction mechanism for shot blasting of a railway passenger car according to claim 1, characterized in that: The rigid traction rigging is an anchor chain.

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