Locomotive cab structure and locomotive body having the same

Abstract

The present invention provides a locomotive cab structure and a locomotive body having the same. The locomotive cab structure includes a fixed portion at the rear end of the cab fixedly mounted on a body chassis and a detachable portion at the front end of the cab; a first sinking platform is provided at the front end of the body chassis, and a front fender and a rear end plate are connected to the front and rear ends of the first sinking platform, respectively. A first connecting beam and a second connecting beam are provided between the left and right ends of the front fender and the rear end plate, respectively; the bottom end surfaces of the left and right ends of the detachable portion are placed on the upper ends of the top end surfaces of the left and right ends of the first sinking platform, and the bottom anti-collision seat of the detachable portion is fixedly connected to the first connecting beam, the front fender, and the second connecting beam by a plurality of fasteners; the rear end connecting flange of the detachable portion is fixedly connected to the front end connecting flange of the fixed portion by a plurality of fasteners. The present invention improves the collision resistance of the detachable portion of the cab and improves the body strength and rigidity of the detachable cab.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and in particular to a locomotive cab structure and a locomotive body having the same. Background Art

[0002] Locomotives, especially heavy-duty locomotives, require exceptional strength and rigidity. To ensure this, the driver's cab structure typically utilizes a monolithic construction, welded together with other body components to form a single, load-bearing structure. Due to the limited space of this type of structure, the entire driver's console cannot be brought into the cab, requiring only disassembled components to be brought in and then assembled within. However, due to the cramped interior and the numerous devices within, workers face not only high workloads, long shifts, and low efficiency, but also challenges product quality assurance due to limited vision and limited operating space. Furthermore, if the cab is damaged in a train collision, repairs are labor-intensive and time-consuming.

[0003] Chinese utility model patent publication number CN201619572U discloses a detachable driver's cab. The entire driver's cab (including the rear wall of the driver's cab) is connected to other parts of the vehicle body by fasteners. The installation of the internal equipment of the driver's cab can be carried out under the vehicle, which improves construction conditions and facilitates maintenance. However, this solution has the following shortcomings: 1. The longitudinal load of the vehicle body is transmitted through fasteners, which are easily sheared, and the strength and rigidity of the locomotive body with large longitudinal loads are difficult to meet; 2. The lower front end of the detachable driver's cab is flush with the upper front end of the vehicle body chassis. Due to the high rigidity of the chassis end, the energy absorption of the driver's cab structure is very limited when the train collides longitudinally. At the same time, for the driver's cab, the impact force is completely borne by the shear resistance of the bolts, resulting in insufficient crash resistance, especially when the driver's cab is subjected to a lateral collision. Summary of the Invention

[0004] The purpose of the present invention is to provide a locomotive cab structure and a locomotive body having the same, in order to address the defects of the existing detachable cab, such as the poor collision resistance of the detachable part of the cab and the insufficient strength and rigidity of the body of the detachable cab, so as to improve the collision resistance of the detachable part of the cab and improve the strength and rigidity of the body of the detachable cab.

[0005] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is: a locomotive cab structure, comprising a fixed portion at the rear end of the cab fixedly mounted on the vehicle body chassis and a detachable portion at the front end of the cab; its structural features are:

[0006] The front end portion of the vehicle body underframe is provided with a first sunken platform, the front end of the first sunken platform is fixedly connected to a front fender, the top surface of the front fender is higher than the top surface of the first sunken platform, the rear end of the first sunken platform is fixedly connected to a rear end plate, a first connecting beam and a second connecting beam are respectively provided between the left end portion and the right end portion of the front fender and the rear end plate, the bottom ends of the first connecting beam and the second connecting beam are fixedly connected to the top surface of the first sunken platform;

[0007] The bottom end surfaces of the left and right ends of the detachable part are placed on the upper parts of the top end surfaces of the left and right ends of the first sink, and the bottom anti-collision seat of the detachable part is fixedly connected to the first connecting beam, the front baffle, and the second connecting beam by a plurality of fasteners;

[0008] The rear end connecting flange of the detachable part and the front end connecting flange of the fixed part are fixedly connected by a plurality of fasteners, and the interface between the detachable part and the fixed part is provided at the front end side of the coupler flange mounting surface or the front end side of the rear plate seat end plane of the coupler box;

[0009] A mounting structure for mounting a driver's cab operating console is provided above the top surface of the first sunken platform.

[0010] The bottom end surface of the detachable part of the above-mentioned locomotive cab structure is placed on the upper part of the top surface of the first sinking platform, and the bottom anti-collision seat of the detachable part is fixedly connected to the first connecting beam, the front baffle, and the second connecting beam by a number of fasteners. Therefore, when the detachable part of the cab is hit by a collision, there is a solid structure behind the detachable part to support or resist it, thereby improving the collision resistance of the detachable part of the cab.

[0011] Furthermore, the distance L1 between the interface between the removable portion and the fixed portion and the coupler flange mounting surface or the end plane of the coupler box rear plate seat is 50mm to 350mm. Assuming the control console can be moved in and out of the driver's cab as a whole, L1 should be as large as possible to ensure greater vertical rigidity of the car body load-bearing structure and to be able to withstand the locomotive's large longitudinal loads.

[0012] Furthermore, the front end of the detachable portion is located in front of the front baffle, and the distance L2 between the front end and the front baffle is 300mm to 350mm. While ensuring that the locomotive can safely pass through all conditions of the R125 curve, L2 should be as large as possible to facilitate the detachable portion of the driver's cab to absorb as much energy as possible in the event of a train collision.

[0013] Furthermore, a plurality of third connecting beams are provided between the front baffle and the rear end plate, and the bottom end of each of the third connecting beams is fixedly connected to the top surface of the first sinking platform.

[0014] Furthermore, the mounting structure includes a plurality of mounting seats, and the mounting seats are fixedly arranged on the top ends of the corresponding connecting beams or fixedly connected to the corresponding connecting beams through connecting plates.

[0015] Furthermore, the bottoms of the first connecting beam, the second connecting beam, and the third connecting beam are all provided with drainage holes running through them transversely, and the left and right sides of the front end of the first sinking platform are both provided with drainage structures.

[0016] Furthermore, the first connecting beam and the second connecting beam are both Z-shaped beams.

[0017] Furthermore, a left shaping structure and a right shaping structure are fixedly provided on the left and right sides of the front end portion of the vehicle body chassis, respectively, and the top surfaces of the left shaping structure and the right shaping structure are flush with the top surface of the first sinking platform.

[0018] Furthermore, the distance between the bottom end surface of the detachable part and the top surface of the first sink, the distance between the inner surface of the bottom anti-collision seat of the detachable part and the outer surfaces of the first connecting beam, the front baffle, and the second connecting beam, and the distance L4 between the rear end connecting flange surface of the detachable part and the front end connecting flange surface of the fixed part are 10mm to 12mm; the fastener connections between the inner surface of the bottom anti-collision seat and the outer surfaces of the first connecting beam, the outer surfaces of the front baffle, and the outer surfaces of the second connecting beam are all provided with adjustment gaskets; the fastener connections between the outer surface of the rear end connecting flange of the detachable part and the outer surface of the front end connecting flange of the fixed part are all provided with adjustment gaskets; the gap between the bottom end surface of the detachable part and the top surface of the first sink is filled with sealant; the external gap between the bottom anti-collision seat of the detachable part and the front baffle is filled with sealant; and the gap between the rear end connecting flange of the detachable part and the front end connecting flange of the fixed part is filled with sealant. In this way, manufacturing errors can be eliminated and the beauty of the tight seam adhesive layer can be ensured.

[0019] Based on the same inventive concept, the present invention also provides a locomotive body, including a body, whose structural feature is that the locomotive cab structure and body underframe of the body are the locomotive cab structure and body underframe mentioned above.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The control panel can be assembled outside the vehicle and then moved into the driver's cab as a whole, which reduces the labor intensity of workers, improves product reliability and facilitates maintenance.

[0022] 2. The vehicle body has strong longitudinal load-bearing capacity and good rigidity.

[0023] 3. The detachable part of the driver's cab has good collision resistance and can provide better protection for the driver and passengers in the event of a collision.

[0024] 4. Green and environmentally friendly, with high and convenient recycling rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of a locomotive cab structure and a locomotive body (part) of the present invention;

[0026] Figure 2 This is a schematic diagram of the locomotive body (partial) structure when the detachable portion of the driver's cab of the present invention is not installed;

[0027] Figure 3 This is a schematic structural diagram of the detachable portion of the driver's cab of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the connection between the detachable part and the fixed part of the driver's cab of the present invention.

[0029] In the figure:

[0030] 1. Vehicle chassis; 11. Front fender; 12. Rear end plate; 13. First connecting beam; 14. Second connecting beam; 15. Third connecting beam; 16. Drain hole; 17. Drainage structure; 100. Driver's cab.

[0031] 2. Fixed part; 21. Front connecting flange; 22. Left side wall of the cab; 23. Right side wall of the cab; 24. Cab roof; 25. Rear wall of the cab; 26. First weld groove; 27. Fixed part skin of the cab;

[0032] 3. Removable part; 31. Rear connecting flange; 32. Upper anti-collision chord beam; 33. Middle anti-collision waist beam; 34. Bottom anti-collision seat; 35. Anti-collision beam; 36. First anti-collision corner column; 37. Second anti-collision corner column; 38. Removable part skin; 39. Second weld groove;

[0033] 4. Mounting structure; 41. Mounting seat; 42. Connecting plate.

[0034] 5. Left end molding structure; 6. Right end molding structure; 7. Adjustment gasket; 8. Sealant; 9. Left side wall of vehicle body; 10. Right side wall of vehicle body; AA, coupler flange mounting surface or rear end plane of coupler box from plate seat; BB, interface between detachable part and fixed part; L1, distance between interface between detachable part and fixed part and coupler flange mounting surface or rear end plane of coupler box from plate seat; L2, distance between the front end of detachable part and front baffle; L3, distance from the lower end of detachable part extending downward to below the upper plane of vehicle body chassis; L4, distance left at the connection between detachable part and fixed part and vehicle body chassis; L5, distance between the outer end of adjustment gasket and the outer surface of rear end connecting flange; H, depth of first sinking platform. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments and features of the embodiments may be combined unless they conflict. For ease of description, the words "upper," "lower," "left," and "right" appear below merely to indicate the directions of upper, lower, left, and right in the accompanying drawings and do not limit the structure.

[0036] like Figure 1-Figure 4 As shown, a locomotive cab structure of this embodiment includes a fixed part 2 at the rear end of the cab fixedly mounted on the vehicle body underframe 1 and a detachable part 3 at the front end of the cab.

[0037] The front end of the vehicle body chassis 1 is provided with a first sunken platform, the front end of the first sunken platform is fixedly connected to a front baffle 11, the top surface of the front baffle 11 is higher than the top surface of the first sunken platform, and the upper end of the front baffle is flush with the upper platform of the vehicle body chassis 1.

[0038] The rear end of the first sink is fixedly connected to a rear end plate 12, and a first connecting beam 13 and a second connecting beam 14 are respectively provided between the left end and the right end of the front baffle 11 and the rear end plate 12, and the bottom ends of the first connecting beam 13 and the second connecting beam 14 are fixedly connected to the top surface of the first sink.

[0039] The bottom end surfaces of the left and right ends of the detachable part 3 are placed on the upper part of the top end surfaces of the left and right ends of the first sink, and the bottom anti-collision seat 34 of the detachable part 3 is fixedly connected to the first connecting beam 13, the front baffle 11, and the second connecting beam 14 through a number of fasteners.

[0040] The rear end connecting flange 31 of the removable part 3 and the front end connecting flange 21 of the fixed part 2 are fixedly connected by multiple fasteners, and the dividing interface BB between the removable part 3 and the fixed part 2 is arranged at the front end side of the flange mounting surface of the coupler (a coupler without a hook tail frame and a hook buffer system) or the front end side of the plate seat end plane of the coupler box (a coupler box with a hook tail frame and a hook buffer system is installed).

[0041] A mounting structure 4 for mounting a driver's cab console is provided above the top surface of the first sunken platform.

[0042] like Figure 1 As shown, in this embodiment, the distance L1 between the interface BB between the removable portion 3 and the fixed portion 2 and the coupler flange mounting surface or the end plane of the coupler box rear plate seat is 325 mm. At this interface, the cab removable portion 3 allows the cab console to be moved in and out of the cab as a whole.

[0043] like Figure 2 As shown, in this embodiment, the front end of the detachable portion 3 is located in front of the front baffle 11. To ensure that the locomotive can safely pass through all conditions of the R125 curve when coupled together, and to maximize the energy absorption of the detachable portion 3 of the driver's cab during a train collision, the distance L2 between the front end and the front baffle 11 is set to 310 mm.

[0044] like Figure 2 As shown, in this embodiment, multiple third connecting beams 15 are further provided between the front fender 11 and the rear end panel 12. The bottom end of each third connecting beam 15 is fixedly connected to the top surface of the first sink. The third connecting beams 15 are longitudinal connecting beams. This facilitates the vehicle body to transmit various collision forces to the detachable portion 3 of the cab.

[0045] like Figure 2 As shown, in this embodiment, the mounting structure 4 includes a plurality of mounting seats 41, which are fixedly mounted on the top ends of corresponding connecting beams or fixedly connected to corresponding connecting beams via connecting plates 42. The types and quantities of the mounting seats 41 and connecting plates 42 can be set according to actual needs.

[0046] like Figure 2 As shown, in this embodiment, the bottoms of the first connecting beam 13, the second connecting beam 14, and the third connecting beam 15 are all provided with drainage holes 16 extending transversely therethrough, and both sides of the front end of the first sink are provided with drainage structures 17, which are drainage pipes. This facilitates the drainage of water accumulated under the movable floor of the cab due to spillage of cleaning and domestic water.

[0047] like Figure 2As shown, in this embodiment, the first connecting beam 13 and the second connecting beam 14 are both Z-shaped beams. The first connecting beam 13 and the second connecting beam 14 are made of cast steel to reduce welding deformation and ensure the installation of the detachable part 3 of the driver's cab.

[0048] like Figure 2 As shown, the fixed part 2 includes a front connecting flange 21, a left side wall 22, a right side wall 23, a roof 24, and a rear wall 25. The fixed part 2 is connected to the left side wall 9, the right side wall 10, and the chassis 1 by welding.

[0049] like Figure 3 As shown, in this embodiment, the detachable portion 3 includes a rear connecting flange 31, an upper anti-collision string beam 32, a middle anti-collision waist beam 33, and a bottom anti-collision seat 34. An anti-collision beam 35 and a first anti-collision corner post 36 are located between the bottom anti-collision seat 34 and the middle anti-collision waist beam 33. A second anti-collision corner post 37 is located between the middle anti-collision waist beam 33 and the upper anti-collision string beam 32. The detachable portion is made of metal, which is resistant to damage in the event of a collision and can be recycled.

[0050] like Figure 4 As shown, the front end connecting flange 21 of the fixed part 2 is made of a steel plate with a thickness of 30 mm. The rear end connecting flange 31 of the detachable part 3 is made of a steel plate with a thickness of 20 mm. The outer contours of the front end connecting flange 21 and the rear end connecting flange 31 are ensured to be consistent with the outer contours of the driver's cab positions where they are located through CNC machining, so as to ensure the contour fit between the fixed part 2 and the detachable part 3 at the connection position. The front end connecting flange 21 and the rear end connecting flange 31 are respectively processed with a second sinker for overlapping the skin, and the depth of the second sinker is respectively the thickness of the fixed part skin 27 and the detachable part skin 38 at the location. The first weld groove 26 and the second weld groove 39 for welding to the fixed part skin 27 and the detachable part skin 38 are also processed at the second sinker.

[0051] like Figure 1-Figure 4As shown, the distance between the bottom end surface of the removable part 3 and the top surface of the first sink, the distance between the inner surface of the bottom anti-collision seat 34 of the removable part 3 and the outer surfaces of the first connecting beam 13, the front baffle 11, and the second connecting beam 14, and the distance L4 between the surface of the rear end connecting flange 31 of the removable part 3 and the surface of the front end connecting flange 21 of the fixed part 2 are all 12 mm. Adjustment washers 7 are provided at the fastener connections between the inner surface of the bottom anti-collision seat 34 and the outer surfaces of the first connecting beam 13, the outer surfaces of the front baffle 11, and the outer surfaces of the second connecting beam 14; adjustment washers 7 are provided at the fastener connections between the outer surface of the rear end connecting flange 31 of the removable part 3 and the outer surface of the front end connecting flange 31 of the fixed part 2. The adjustment washers 7 have a U-shaped opening at the bolt installation location, so that the corresponding adjustment washers 7 can be inserted according to the actual distance between the removable part 3 of the driver's cab and the fixed part 2 of the driver's cab at each fastener. The adjusting gasket 7 is adapted to the shape of the connected component. A distance L5 of 15 mm is maintained between the outer end of the adjusting gasket 7 and the outer surface of the rear connecting flange 31, ensuring a tight seal and force transfer during a collision. The thickness of the adjusting gasket 7 ranges from 1 mm to 10 mm. Adjusting gaskets of varying thicknesses or a combination of multiple adjusting gaskets of varying thicknesses can be used depending on the actual spacing between the joints.

[0052] The gap between the bottom end surface of the removable part 3 and the top end surface of the first sink is filled with sealant 8. The external gap between the bottom anti-collision seat 34 of the removable part 3 and the front baffle 11 is filled with sealant 8. The gap between the rear end connecting flange 31 of the removable part 3 and the front end connecting flange 21 of the fixed part 2 is filled with sealant 8. The sealant 8 is a sealant with good anti-aging properties.

[0053] like Figure 1 As shown, the lower end of the removable portion 3 extends downward to a distance L3 below the upper plane of the vehicle chassis. The value of L3 ranges from 120mm to 150mm. In this embodiment, L3 is 150mm. A distance L4 = 12mm is left between the removable portion 3 and the fixed portion 2, vehicle chassis 1, etc. to eliminate manufacturing errors and ensure the thickness of the sealant 8. The depth H of the first sink is 162mm.

[0054] like Figure 1 As shown, in order to make the locomotive body beautiful as a whole, in this embodiment, a left molding structure 5 and a right molding structure 6 are fixed on the left and right sides of the front end of the body chassis 1 respectively, and the top surfaces of the left molding structure 5 and the right molding structure 6 are flush with the top surface of the sink 11. The left end molding structure and the right end molding structure can be connected to the body chassis 1 by fasteners or welding.

[0055] like Figure 1-Figure 4 As shown, this embodiment also provides a locomotive body, including a body, wherein the body adopts an integral load-bearing structure, and the body load-bearing structure is composed of a body chassis 1, a driver's cab, a left side wall 9 and a right side wall 10, etc. Its structural feature is that the driver's cab structure and the body chassis 1 of the body are the above-mentioned driver's cab structure and body chassis 1.

[0056] The locomotive cab structure and the locomotive body having the same according to the present embodiment improve the collision resistance of the detachable part of the cab and improve the strength and rigidity of the body of the detachable cab.

[0057] The contents described in the above embodiments should be understood as these embodiments are only used to more clearly illustrate the present invention, and are not used to limit the scope of the present invention. After reading the present invention, various equivalent modifications to the embodiments made by those skilled in the art fall within the scope defined by the claims attached to the present invention.

Claims

1. A locomotive cab structure, comprising a fixed portion (2) at the rear end of the cab fixedly mounted on a vehicle body underframe (1) and a detachable portion (3) at the front end of the cab; characterized in that: The front end of the vehicle body chassis (1) is provided with a first sinking platform, the front end of the first sinking platform is fixedly connected to a front baffle (11), the top end surface of the front baffle (11) is higher than the top end surface of the first sinking platform, the rear end of the first sinking platform is fixedly connected to a rear end plate (12), a first connecting beam (13) and a second connecting beam (14) are respectively provided between the left end and the right end of the front baffle (11) and the rear end plate (12), the bottom ends of the first connecting beam (13) and the second connecting beam (14) are fixedly connected to the top end surface of the first sinking platform; The bottom end surfaces of the left and right ends of the detachable part (3) are placed on the upper parts of the top end surfaces of the left and right ends of the first sink, and the bottom anti-collision seat (34) of the detachable part (3) is fixedly connected to the first connecting beam (13), the front baffle (11), and the second connecting beam (14) by a plurality of fasteners; The rear end connection flange (31) of the detachable part (3) and the front end connection flange (21) of the fixed part (2) are fixedly connected by a plurality of fasteners, and the interface (BB) between the detachable part (3) and the fixed part (2) is provided at the front end side of the coupler flange mounting surface or the front end side of the rear plate seat end plane of the coupler box; A mounting structure (4) for mounting a driver's cab operating console is provided above the top surface of the first sinking platform.

2. The locomotive cab structure according to claim 1, characterized in that: The distance L1 between the interface (BB) between the detachable part (3) and the fixed part (2) and the coupler flange mounting surface or the rear plate seat end plane of the coupler box is 50mm to 350mm.

3. The locomotive cab structure according to claim 1, characterized in that: The front end of the detachable part (3) is located in front of the front baffle (11), and the distance L2 between the front end and the front baffle (11) is 300 mm to 350 mm.

4. The locomotive cab structure according to claim 1, characterized in that: A plurality of third connecting beams (15) are further provided between the front baffle (11) and the rear end plate (12), and the bottom end of each third connecting beam (15) is fixedly connected to the top end surface of the first sinking platform.

5. The locomotive cab structure according to claim 4, characterized in that: The mounting structure (4) comprises a plurality of mounting seats (41), wherein the mounting seats (41) are fixedly arranged on the top ends of corresponding connecting beams or are fixedly connected to the corresponding connecting beams via connecting plates (42).

6. The locomotive cab structure according to claim 4, characterized in that: The bottoms of the first connecting beam (13), the second connecting beam (14), and the third connecting beam (15) are all provided with drainage holes (16) running through them transversely, and drainage structures (17) are provided on both sides of the front end of the first sinking platform.

7. The locomotive cab structure according to claim 1, characterized in that: The first connecting beam (13) and the second connecting beam (14) are both Z-shaped beams.

8. The locomotive cab structure according to claim 1, characterized in that: A left molding structure (5) and a right molding structure (6) are fixedly provided on the left and right sides of the front end of the vehicle body chassis (1), respectively. The top surfaces of the left molding structure (5) and the right molding structure (6) are flush with the top surface of the first sinking platform.

9. The locomotive cab structure according to claim 1, characterized in that: The distance between the bottom end surface of the detachable part (3) and the top end surface of the first sink, the distance between the inner surface of the bottom anti-collision seat (34) of the detachable part (3) and the outer surface of the first connecting beam (13), the front baffle (11), and the second connecting beam (14), and the distance L4 between the surface of the rear end connecting flange (31) of the detachable part (3) and the surface of the front end connecting flange (21) of the fixed part (2) are 10 mm to 12 mm; the fastener connection between the inner surface of the bottom anti-collision seat (34) and the outer surface of the first connecting beam (13), the outer surface of the front baffle (11), and the outer surface of the second connecting beam (14) is 10 mm to 12 mm. Adjustment gaskets (7) are provided at the joints; adjustment gaskets (7) are provided between the fastener connections of the outer surface of the rear end connection flange (31) of the detachable part (3) and the outer surface of the front end connection flange (21) of the fixed part (2); the gap between the bottom end surface of the detachable part (3) and the top end surface of the first sink is filled with sealant (8); the external gap between the bottom anti-collision seat (34) of the detachable part (3) and the front baffle (11) is filled with sealant (8); the gap between the rear end connection flange (31) of the detachable part (3) and the front end connection flange (21) of the fixed part (2) is filled with sealant (8).

10. A locomotive body, comprising a body, characterized in that: The driver's cab structure and vehicle body underframe (1) of the vehicle body are the driver's cab structure and vehicle body underframe (1) described in any one of claims 1-9.

Images