Loadable light-weight stepped locomotive top cover

Abstract

The invention relates to the technical field of locomotive roofs, and discloses a loadable lightweight stepped locomotive roof which comprises a first roof area and a second roof area, the plane of the first roof area is lower than that of the second roof area for bearing, the bottom layer of each roof area is provided with a structural frame, the structural frame comprises cross beams and longitudinal beams, and the cross beams and the longitudinal beams are arranged in a crossed mode. The joint positions of the two top cover areas are connected through an L-shaped supporting beam, the structural frame and the L-shaped supporting beam are continuously covered with a skin to form a stepped top cover, and mounting beams connected with the side walls are arranged on the two sides of the second top cover area. Sealing structures are arranged between the front end of the first top cover area and the cab rear wall and between the two sides of the first top cover area and the side walls. The top cover is subjected to lightweight design, the top cover is partitioned, and equipment is arranged in a step area of the top cover, so that the equipment mounting surface sinks, the appearance effect of the whole locomotive is not affected after the equipment is mounted, the top space is fully utilized, and the whole locomotive modal is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of locomotive roof covers, and in particular to a load-bearing lightweight stepped locomotive roof cover. Background Art

[0002] Internal combustion powered vehicles are equipped with two power sources, diesel engine and power battery, cooling device and a variety of electrical cabinets. In order to improve the locomotive maintenance mode level, the locomotive side wall has been increased in height. At the same time, in order to make the appearance of the power car and trailer overly simple, the height of the power car has been reduced by nearly 200mm. These two aspects have greatly reduced the height of the roof itself. Since the driver's cab of the power car adopts a streamlined design, the air conditioner needs to be installed on the roof behind the driver's cab considering the volume, vibration and noise of the air conditioner. The installation height of the air conditioner will affect the appearance of the whole vehicle, so the top surface after the air conditioner is installed cannot be higher than the height of the whole vehicle. The existing locomotive roof is generally a steel structure, which is welded into a double-layer frame structure by many trough-shaped longitudinal beams, transverse beams, side beams, and air ducts, and then welded with steel skins on both sides of the frame. This structure is too bulky and heavy, weighing more than 270 kilograms per linear meter. Since the interfaces of the electrical, braking, and air duct systems are distributed throughout the roof, the welding workload is large and the welding deformation is also large. In addition, the height of the air conditioner is higher than the height of the roof, so the existing roof structure cannot meet this installation requirement.

[0003] Therefore, there is a need in the prior art for improving a load-bearing, lightweight stepped motorcycle roof. Summary of the invention

[0004] In view of this, the purpose of an embodiment of the present invention is to propose a load-bearing, lightweight stepped locomotive roof cover, the roof cover is lightweightly designed and partitioned, the equipment is placed in the stepped area of ​​the roof cover, the equipment installation surface is sunken, and the installation of the equipment will not affect the appearance of the entire vehicle, the top space is fully utilized, and the modal state of the locomotive is effectively improved.

[0005] Based on the above purpose, an embodiment of the present invention provides a load-bearing lightweight stepped locomotive roof, comprising: The top cover includes a first top cover area and a second top cover area. The plane of the first top cover area is lower than that of the second top cover area for load bearing. A structural frame is arranged at the bottom of each top cover area. The structural frame includes cross-arranged cross beams and longitudinal beams. The two top cover areas are connected by an L-shaped support beam at the joint. A skin is continuously covered above the structural frame and the L-shaped support beam to form a stepped top cover. Mounting beams connected to the side walls are arranged on both sides of the second top cover area. Sealing structures are arranged between the front end of the first top cover area and the rear wall of the driver's cab, and between the two sides of the first top cover area and the side walls.

[0006] In some embodiments, two groups of reinforcing beams are symmetrically arranged on the first top cover area, and the carried items are detachably arranged between the two groups of reinforcing beams. The reinforcing beams include a groove-shaped main body and a plurality of fixing parts arranged at the bottom of the groove-shaped main body. The plurality of fixing parts are arranged at intervals along the extension direction of the reinforcing beams, and the contact positions of the fixing parts and the first skin are provided with mounting holes of the same size.

[0007] In some embodiments, the reinforcing beam adopts a basin-shaped channel steel structure, and the channel-shaped body is configured to be hollow between adjacent fixing portions.

[0008] In some embodiments, each reinforcing beam has three to five fixing portions.

[0009] In some embodiments, sealing beams are provided at the front end and both left and right sides of the first top cover area, and the sealing beams include a first extension portion and a second extension portion with an angle, the first extension portion is fixedly connected to the first skin, and the second extension portion is parallel to the eaves of the rear wall and the side wall.

[0010] In some embodiments, a transition sealing plate is further provided on the outer side of the sealing beam of the first top cover area to transition the sealing surface of the sealing beam of the first top cover area and the sealing surface of the mounting beam of the second top cover area to the same plane.

[0011] In some embodiments, the structural frame includes a first structural frame and a second structural frame, the first structural frame is disposed in the first roof region, and the second structural frame is disposed in the second roof region.

[0012] In some embodiments, the first structural frame is a 3 mm thick channel steel, and the second structural frame is a 2 mm thick channel steel, and each channel steel is provided with a plurality of weight-reducing holes.

[0013] In some embodiments, a plurality of mounting positions are arranged at intervals on the mounting beam, and the side wall and the mounting beam are fixedly connected at the mounting positions by a bolt structure.

[0014] In some embodiments, a plurality of air conditioner fixing seats are further disposed on the first top surface area.

[0015] The present invention has at least the following beneficial technical effects: The present invention designs a new structure for the roof cover. By comprehensively planning the height of the electrical cabinet inside the electrical room just below the air conditioner, the top space is fully utilized, and a roof cover structure suitable for the installation of the air conditioner is planned. At the same time, the sealing structure of the stepped roof cover is taken into consideration to ensure that the roof cover is reliably installed and well sealed, and that the air conditioning drainage can be smoothly discharged to both sides of the power car. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of a top view embodiment of a stepped locomotive roof provided by the present invention; Figure 2 A schematic diagram of a rear view embodiment of a stepped locomotive roof provided by the present invention; Figure 3 A schematic diagram of the side wall structure provided by the present invention; Figure 4 A cross-sectional view of the connection structure between the top cover and the side wall provided by the present invention; Figure 5 A cross-sectional view of the connection structure between the top cover and the rear wall provided by the present invention; Figure 6 A perspective view of a first sealing structure provided by the present invention; Figure 7 A schematic diagram of a second sealing structure provided by the present invention; Figure 8 A schematic diagram of an embodiment of a mounting beam provided by the present invention; Fig. 9 A drainage schematic diagram provided by the present invention; Fig.10 A schematic diagram of the drainage structure of the side wall enclosure provided by the present invention.

[0018] Description of reference numerals: 100, first roof area; 110, first structural frame; 111, weight-reducing hole; 120, first skin; 130, support beam; 140, sealing beam; 141, first extension; 142, second extension; 150, transition sealing plate; 160, reinforcement beam; 161, grooved body; 162, fixing part; 200, second roof area; 210, second structural frame; 220, mounting beam; 221, mounting position; 230, second skin; 240, third skin; 250, air conditioner fixing seat; 251, first roof area mounting surface; 252, second roof area mounting surface; 260. Sealing structure; 261. Side wall sealing beam; 262. Sealing gasket; 263. Side wall rain canopy; 264. Sealing strip; 265. Sealing channel steel; 266. Rear wall rain canopy; 267. Side wall transition sealing beam; 268. Side wall enclosure; 269. Main drainage channel; 270. Auxiliary drainage channel. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the directions or positions indicated by the terms "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the drawings, which are only for the convenience of description and should not be understood as limitations on the present technical solution.

[0021] The terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] In the specification and claims of the present invention and the above-mentioned drawings, when an element is referred to as being "fixed to" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it may be directly or indirectly connected to the other element.

[0023] In addition, reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] Based on the shortcomings of the prior art, the present invention designs a new structure for the roof cover. By comprehensively planning the height of the electrical cabinet inside the electrical room directly below the air conditioner, the top space is fully utilized, and a roof cover structure suitable for air conditioner installation is planned. At the same time, the sealing structure of the stepped roof cover is considered to ensure that the roof cover is reliably installed and well sealed, and the air conditioner drainage can be smoothly discharged to both sides of the power car. Figure 1~2 FIG. 1 is a schematic diagram of an embodiment of a stepped locomotive roof provided by the present invention, wherein: Figure 1 For the top perspective, Figure 2This is a back view. The present invention is installed on the top of the electrical room, specifically: The roof comprises a first roof area 100 and a second roof area 200. The plane of the first roof area 100 is lower than that of the second roof area 200 for carrying equipment. A structural frame (110, 210) is arranged at the bottom of each roof area. The structural frame comprises cross beams and longitudinal beams arranged crosswise. The two roof areas are connected at the joint by an L-shaped support beam 130. The structural frame (110, 210) and the L-shaped support beam 130 are continuously covered with a skin (120, 230, 240) above to form a stepped roof. Mounting beams 220 connected to the side walls are arranged on both sides of the second roof area. Sealing structures are arranged between the front end of the first roof area 100 and the rear wall of the driver's cab, and between the two sides of the first roof area 100 and the side walls.

[0025] The main body of the roof is divided into two areas. The first roof area 100 is the air conditioning equipment installation area. The roof adopts a stepped sinking structure to achieve air conditioning installation. The second roof area 200 is a common roof area, which is connected to the first roof area through a stepped transition. Further, based on the design of the stepped roof, such as Figure 3 The figure shows a schematic diagram of the side wall structure. The side wall is designed to be a structure that is high in the front and low in the back. The top surface of the side wall includes a first top cover area mounting surface 251 and a second top cover area mounting surface 252. The high and low design is coordinated with the shape of the top cover as well as the sealing structure and the drainage system for drainage.

[0026] Further, the structural frame includes a first structural frame 110 and a second structural frame 210, the first structural frame 110 is covered with a first skin 120 to form a first roof area 100, the second structural frame 210 is covered with a second skin 230 to form a second roof area 200, and the third skin 240 is covered at the step between the first skin and the second skin 230 to connect the first skin 120 and the second skin 230 to form a completed stepped roof. In some embodiments, the first structural frame is a 3mm thick channel steel, and the second structural frame is a 2mm thick channel steel, and each channel steel is provided with a plurality of weight-reducing holes to achieve a lightweight design. In some embodiments, considering the weight of the air-conditioning equipment, the overall thickness of the support frame is 50mm to increase the support stiffness of the structural frame.

[0027] Furthermore, if Figure 1 As shown, two groups of reinforcing beams 160 are symmetrically arranged on the first top cover area 100, and the carried equipment is detachably arranged between the two groups of reinforcing beams 160. Under the premise that the number of beams is not increased in the top cover, the beams under the skin are moved to the skin, which not only improves the strength of the air conditioner installation area of ​​the first top cover area 100, but also provides installation interfaces for the air guide covers on both sides of the air conditioner.

[0028] In some embodiments, the reinforcing beam 160 includes a groove-shaped body 161 and a plurality of fixing portions 162 disposed at the bottom of the groove-shaped body. The plurality of fixing portions 162 are disposed at intervals along the extension direction of the reinforcing beam 160. The fixing portions 162 are disposed at the contact positions with the first skin 120 with mounting holes of the same size, so as to fix the reinforcing beam and the first skin, and the two are fixed by passing bolt fasteners through the mounting holes. In some embodiments, each reinforcing beam has three to five fixing portions 162, and a plurality of through holes can be selectively disposed on the groove-shaped body of the reinforcing beam to reduce the weight of the reinforcing beam. In some embodiments, the fixing portion 162 can have a larger contact surface to increase the weld length between the reinforcing beam 9 and the first skin, thereby increasing the welding strength and strengthening the strength of the mounting hole position, thereby preventing the top cover from being locally deformed when a torque is applied during the installation and tightening of the top cover.

[0029] In some embodiments, the reinforcing beam 160 adopts a basin-shaped channel steel structure, and the channel-shaped main body is set to be hollow between adjacent fixing parts. This area is a lightweight design of the reinforcing beam, and the weight is reduced after fully considering the structural strength. At the same time, a drainage channel is provided for the equipment position in the first top cover area to drain water to both sides of the top cover. The top surface of the reinforcing beam can provide an installation plane for the top cover air deflector mounting seat.

[0030] Furthermore, if Figure 2 As shown, sealing beams 140 are provided at the front end and both left and right sides of the first roof area 100. The present invention provides two sealing structures, a sealing member is provided between the first roof area 100 and the horizontal contact position of the side wall and the rear wall to form a first seal, and a sealing member is provided between the sealing beam 140 and the rear wall rain eaves and the side wall rain eaves to form a second seal.

[0031] Specifically, Figures 4 and 5 The figure shows the connection structure between the top cover and the side wall, and between the top cover and the rear wall. Figure 4 The middle circle is an enlarged schematic diagram of the sealing beam. The sealing beam 140 includes a first extension portion 141 and a second extension portion 142 with an angle. The first extension portion 141 is fixedly connected to the first skin 120, and the second extension portion 142 is parallel to the rear wall rain eaves 166 and the side wall rain eaves 263.

[0032] like Figure 4 As shown, a sealing pad 262 is further provided between the side wall sealing beam 261 and the first roof area 100 to achieve a first seal, and a sealing strip 264 is provided between the second extension portion 142 of the sealing beam 140 and the side wall rain eave 263 to achieve a second seal. Figure 5 As shown, a sealing gasket 262 is provided between the sealing channel steel 265 of the rear wall of the driver's cab and the first roof area 100 to achieve a first seal, and a sealing strip 264 is also provided between the second extension portion 142 of the sealing beam 140 and the rear wall rain eaves 266 to achieve a second seal.

[0033] Furthermore, combined with Figure 6 , showing a perspective view of the top cover and side wall connection structure provided by the present invention, the sealing gasket 262 realizes peripheral sealing at the sealing channel steel 265 and the side wall sealing beam 261, and the sealing gasket 262 reaches the side wall transition sealing beam 261 and ends, thereby realizing the first sealing of the first top cover area.

[0034] Furthermore, combined with Figure 7 The sealing gasket 262 is sealed at the positions of the rear wall rain eaves 266, the side wall rain eaves 263, and the side wall transition sealing beam 267. In this way, the second sealing of the first roof area and the sealing of the entire roof structure and the side wall are achieved.

[0035] Furthermore, the outer sides of the sealing beams 140 arranged on both sides of the first top cover area 100 further have transition sealing plates 150 to transition the sealing surface of the sealing beam 140 of the first top cover area 100 and the sealing surface of the mounting beam 220 of the second top cover area 200 to the same plane.

[0036] Furthermore, if Figure 8 The schematic diagram of the embodiment of the mounting beam provided by the present invention is shown, and a plurality of mounting positions 221 are arranged at intervals on the mounting beam 220, and the side wall and the mounting beam 220 are fixedly connected at the mounting positions 221 by a bolt structure. The inclined surface of the mounting beam 220 is sealed with the side wall rain eaves 263 by a sealing strip 264.

[0037] Furthermore, a plurality of air conditioner fixing seats 250 are further provided on the first top surface area 100 for auxiliary fixing.

[0038] Furthermore, if Figures 9 and 10 As shown is a schematic diagram of the drainage structure provided by the present invention. After rainwater falls on the first roof cover area 100, it slides to the left and right sides. When the first seal of the first roof cover area 100 is good, the rainwater flows to the outside of the vehicle through the main drainage channel 269 of the side wall panel 268. When part of the rainwater flows to the side wall rain eaves 263 through the gap of the roof installation fasteners, the second seal will prevent rainwater from entering the vehicle, and the rainwater will flow to the outside of the vehicle through the auxiliary drainage channel 270 of the side wall panel 268.

[0039] The stepped roof structure of the present invention is simple, which can reduce the height of the roof structure, and place the equipment in the stepped area of ​​the roof, so that the equipment installation surface is sunken, does not exceed the outline of the locomotive, and does not affect the appearance of the whole vehicle. At the same time, the successful design of the roof structure helps to increase the structural height of the side wall, thereby effectively improving the whole vehicle mode of the locomotive, which has guiding significance for the future locomotive steel structure design.

[0040] The above are exemplary embodiments disclosed in the present invention, but it should be noted that various changes and modifications may be made without departing from the scope disclosed in the embodiments of the present invention as defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0041] It should be understood that, as used herein, the singular forms "a", "an" are intended to include the plural forms as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations including one or more of the associated listed items.

[0042] The serial numbers of the embodiments disclosed in the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0043] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A load-bearing lightweight stepped motorcycle roof, characterized in that: The top cover includes a first top cover area and a second top cover area. The plane of the first top cover area is lower than that of the second top cover area for bearing. A structural frame is arranged at the bottom of each top cover area. The structural frame includes cross-arranged cross beams and longitudinal beams. The two top cover areas are connected by an L-shaped support beam at the joint. A skin is continuously covered above the structural frame and the L-shaped support beam to form a stepped top cover. Mounting beams connected to the side walls are arranged on both sides of the second top cover area. Sealing structures are arranged between the front end of the first top cover area and the rear wall of the driver's cab, and between the two sides of the first top cover area and the side walls.

2. The load-bearing lightweight stepped motorcycle roof according to claim 1, characterized in that: Two groups of reinforcing beams are symmetrically arranged on the first top cover area, and the carried equipment is detachably arranged between the two groups of reinforcing beams. The reinforcing beams include a groove-shaped main body and a plurality of fixing parts arranged at the bottom of the groove-shaped main body. The plurality of fixing parts are arranged at intervals along the extension direction of the reinforcing beams, and the contact positions between the fixing parts and the skin are provided with mounting holes of the same size.

3. The load-bearing lightweight stepped motorcycle roof according to claim 2, characterized in that: The reinforcing beam adopts a basin-shaped channel steel structure, and the channel-shaped main body is configured to be hollow between adjacent fixing parts.

4. The load-bearing lightweight stepped motorcycle roof according to claim 3, characterized in that: Each of the reinforcing beams has three to five fixing parts.

5. The load-bearing lightweight stepped motorcycle roof according to claim 1, characterized in that: Sealing beams are provided at the front end and both left and right sides of the first roof cover area. The sealing beams include a first extension portion and a second extension portion with an angle. The first extension portion is fixedly connected to the skin, and the second extension portion is parallel to the eaves of the rear wall and the side wall.

6. The load-bearing lightweight stepped motorcycle roof according to claim 5, characterized in that: A seal is provided between the first roof area and the horizontal contact position between the side wall and the rear wall to form a first seal, and a seal is provided between the second extension portion and the rear wall rain eaves and the side wall rain eaves to form a second seal.

7. The load-bearing lightweight stepped motorcycle roof according to claim 5, characterized in that: The outer side of the sealing beam of the first top cover area is further provided with a transition sealing plate to transition the sealing surface of the sealing beam of the first top cover area and the sealing surface of the mounting beam of the second top cover area to the same plane.

8. The load-bearing lightweight stepped motorcycle roof according to claim 1, characterized in that: The structural frame includes a first structural frame and a second structural frame, the first structural frame is arranged in the first roof area, and the second structural frame is arranged in the second roof area.

9. The load-bearing lightweight stepped motorcycle roof according to claim 8, characterized in that: The first structural frame is a 3mm thick channel steel, and the second structural frame is a 2mm thick channel steel. Each channel steel is provided with a plurality of weight-reducing holes.

10. The load-bearing lightweight stepped motorcycle roof according to claim 1, characterized in that: A plurality of installation positions are arranged at intervals on the installation beam, and the side wall and the installation beam are fixedly connected at the installation positions by a bolt structure.

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