A locomotive sanding device

Abstract

The present application relates to the field of locomotive technology, and discloses a locomotive sanding device suitable for locomotive, wherein the locomotive comprises a bogie frame and a mounting seat, the mounting seat is fixedly arranged on the bogie frame, the locomotive sanding device comprises a sand box and an anti-falling assembly, the sand box is fixedly installed on the mounting seat, the anti-falling assembly comprises a hanging piece and a fixing seat, the hanging piece is fixedly installed on the fixing seat, the fixing seat is fixedly connected to the sand box, the hanging piece is provided with an anti-falling groove, the mounting seat is provided with a clamping groove, at least part of the hole wall of the anti-falling groove and the inner wall of the clamping groove form a blocking limit, so as to constrain the sand box from falling off the mounting seat. The hole wall of the anti-falling groove and the inner wall of the clamping groove are limited and matched along the hanging piece, a physical stop is formed in the falling direction of the sand box, the sand box is effectively prevented from accidentally falling off the mounting seat due to vibration impact, inclination or misoperation, the safety and stability of the sand box are significantly improved, and the reliability and safety of train operation are improved.

Description

Technical Field

[0001] This invention relates to the field of locomotive technology, and more particularly to a locomotive sand spreading device. Background Technology

[0002] The locomotive sand spreading device is a crucial system for ensuring effective adhesion between the wheels and rails, increasing the coefficient of friction, and thus ensuring the locomotive operates at its normal power. The sand box, a vital component of this device, is primarily used to store sand. In some existing locomotive models, the sand box is suspended from the bogie, with varying suspension positions. A common method is mounting it on the side of the bogie frame, with a corresponding mounting bracket on the side, and the sand box secured by fasteners. However, most sand boxes have a volume of at least 50L, and combined with their own weight, they can typically weigh several hundred kilograms or more. The vibration and impact experienced by the sand box suspended on the bogie are far greater than those experienced on the car body, increasing the risk of loosening of the fasteners. Furthermore, most sand boxes are constructed from thin-plate welded structures, making them susceptible to fatigue damage around the bolt fixing points, potentially leading to the sand box detaching. If a sand box falls onto the rails during operation, it will seriously threaten operational safety and could even cause a major accident such as locomotive derailment.

[0003] Therefore, there is an urgent need for a locomotive sand spreading device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a locomotive sand spreading device that can effectively reduce the risk of sand box falling off and improve the reliability and safety of locomotive operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention provides a sand spreading device for locomotives, applicable to locomotives. The locomotive includes a bogie frame and a mounting base, the mounting base being fixedly disposed on the bogie frame. The locomotive sand spreading device includes:

[0007] A sand box, which is fixedly installed to the mounting base;

[0008] An anti-detachment component includes a hook and a fixing base. The hook is fixedly installed to the fixing base, and the fixing base is fixedly connected to the sand box. The hook has a through anti-detachment slot, and the fixing base has a retaining groove. At least a portion of the hole wall of the anti-detachment slot and the inner wall of the retaining groove form a blocking limit to prevent the sand box from detaching from the fixing base.

[0009] As a preferred technical solution for the above-mentioned locomotive sand spreading device, the upper wall of the anti-detachment groove is lower than the edge of the groove opening of the clamping groove.

[0010] As a preferred technical solution of the above-mentioned locomotive sand spreading device, the clamping groove has a bottom wall and two inclined arc surfaces, the two inclined arc surfaces being located on opposite sides of the bottom wall.

[0011] As a preferred technical solution of the above-mentioned locomotive sand spreading device, the mounting component includes an anti-detachment mounting plate and a mounting base. The mounting base is fixedly connected to the anti-detachment mounting plate, and the anti-detachment slot is opened in the anti-detachment mounting plate. The anti-detachment component also includes a connector, and the fixing seat is fastened to the mounting base through the connector.

[0012] As a preferred technical solution for the above-mentioned locomotive sand spreading device, the connecting component includes a bolt and a nut, wherein the bolt passes through the mounting base and the fixing seat in sequence and is threaded to the nut.

[0013] As a preferred technical solution for the above-mentioned locomotive sand spreading device, the connecting component further includes a gasket, which is disposed between the nut and the fixing seat.

[0014] As a preferred technical solution of the above-mentioned locomotive sand spreading device, the anti-detachment mounting plate includes an anti-detachment part, a transition arc part and a connecting part, the transition arc part is connected between the anti-detachment part and the connecting part, the anti-detachment groove is opened in the anti-detachment part, and the connecting part is fixedly connected to the mounting base.

[0015] As a preferred technical solution for the aforementioned locomotive sand spreading device, the mounting base is fixed to the anti-detachment hanging plate by welding.

[0016] As a preferred technical solution of the above-mentioned locomotive sand spreading device, the fixing seat is cylindrical, and the outer peripheral wall of the fixing seat is fixedly connected to the sand box.

[0017] As a preferred technical solution of the above-mentioned locomotive sand spreading device, the anti-detachment groove hole is square, and the corners of the anti-detachment groove hole are formed with transition arcs.

[0018] The beneficial effects of this invention are as follows:

[0019] This invention provides a sand spreading device for locomotives, applicable to locomotives. The locomotive includes a bogie frame and a mounting base, with the mounting base fixedly disposed on the bogie frame. The sand spreading device includes a sand box and an anti-detachment component. The sand box is fixedly installed on the mounting base. The anti-detachment component includes a hook-fitting member and a fixing seat. The hook-fitting member is fixedly installed on the fixing seat, and the fixing seat is fixedly connected to the sand box. The hook-fitting member has a through-hole for anti-detachment, and the mounting seat has a retaining groove. At least a portion of the hole wall of the anti-detachment hole and the inner wall of the retaining groove form a blocking limit to prevent the sand box from detaching from the mounting seat. This design, through the hook-fitting limit cooperation between the hole wall of the anti-detachment hole and the inner wall of the groove, forms a physical stop in the direction of sand box detachment and fall, effectively preventing the sand box from accidentally slipping off the mounting seat due to vibration, impact, tilting, or misoperation. This significantly improves the safety and stability of the sand box mounting, and enhances the reliability and safety of train operation. Attached Figure Description

[0020] Figure 1 Schematic diagram of the anti-detachment component provided by the present invention Figure 1 ;

[0021] Figure 2 Schematic diagram of the anti-detachment component provided by the present invention Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the structure of the sand box provided by the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the locomotive sand spreading device provided by the present invention;

[0024] Figure 5 This is a partial enlarged view of the locomotive sand spreading device provided by the present invention.

[0025] in:

[0026] 1. Steering architecture;

[0027] 2. Mounting base; 21. Holding groove; 211. Bottom wall; 212. Inclined arc surface;

[0028] 3. Sandbox;

[0029] 4. Hanging component; 401. Anti-detachment groove hole; 41. Anti-detachment hanging plate; 411. Anti-detachment part; 412. Transition arc part; 413. Connecting part; 42. Mounting base; 43. Connecting component; 431. Bolt; 432. Nut; 433. Washer;

[0030] 5. Fixture. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0033] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0034] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 5As shown, this embodiment provides a locomotive sand spreading device, applicable to locomotives. The locomotive includes a bogie frame 1 and a mounting base 2. The mounting base 2 is fixedly installed on the bogie frame 1. The locomotive sand spreading device includes a sand box 3 and an anti-detachment component. The sand box 3 is fixedly installed on the mounting base 2. The anti-detachment component includes a hook 4 and a fixing base 5. The hook 4 is fixedly installed on the fixing base 5. The fixing base 5 is fixedly connected to the sand box 3. The hook 4 has a through anti-detachment slot 401. The mounting base 2 has a retaining groove 21. At least a portion of the hole wall of the anti-detachment slot 401 and the inner wall of the retaining groove 21 form a blocking limit to restrain the sand box 3 from detaching from the mounting base 2. This design, through the engagement and limiting cooperation between the hole wall of the anti-detachment groove 401 and the inner wall of the groove, forms a physical stop in the direction of the sand box 3's detachment and fall, effectively preventing the sand box 3 from accidentally slipping off the mounting base 2 due to vibration, impact, tilting, or misoperation. This significantly improves the safety and stability of the sand box 3's mounting, and enhances the reliability and safety of the vehicle's operation.

[0037] Optionally, to ensure that the wall of the anti-detachment slot 401 can hook onto the edge of the slot, the upper wall of the anti-detachment slot 401 is lower than the edge of the slot of the retaining groove 21. After the hook 4 is inserted into the retaining groove 21, the edge of the slot naturally forms a blocking step higher than the upper wall in the vertical direction. When the sand box 3 is subjected to an outward pulling force, the edge of the slot can form a stable surface contact stop with the upper wall of the anti-detachment slot 401. This structure uses the weight of the hook 4 itself to achieve an automatic anti-detachment effect of "locking upon placement", without the need for additional moving parts such as springs, buckles or locking parts. While simplifying the assembly process and reducing manufacturing costs, it significantly improves the reliability and service life of the anti-detachment structure. Furthermore, the unlocking operation of this anti-detachment structure only requires lifting the hook 4 so that the upper wall of the anti-detachment slot 401 is higher than the edge of the slot, and then it can be pulled out horizontally, taking into account the convenience of disassembly and assembly.

[0038] Alternatively, please refer to Figure 5As shown, the retaining groove 21 has a bottom wall 211 and two inclined arc surfaces 212, which are located on opposite sides of the bottom wall 211. This configuration, by setting the two inner walls of the retaining groove 21 as inclined arc surfaces 212, allows the hook-and-mount member 4 to be smoothly guided during insertion or removal from the retaining groove 21. This effectively reduces the hard compression and frictional resistance between the hook-and-mount member 4 and the inner wall of the retaining groove 21, enabling the hook-and-mount member 4 to smoothly slide into the preset position or exit in the opposite direction, significantly improving the smoothness of the assembly and disassembly operations. Meanwhile, the inclined arc surface 212 structure can automatically guide the hanger 4 back to its center position at the bottom of the retaining groove 21 when the hanger 4 is subjected to lateral shaking or eccentric load. This prevents the hanger 4 from becoming skewed or stuck in the retaining groove 21 due to uneven force, thus ensuring that the hole wall of the anti-detachment slot 401 and the inner wall of the retaining groove 21 are always in an accurate stop-fit ​​position, further enhancing the stability and reliability of the anti-detachment structure. In addition, compared with right-angled edges, the inclined arc surface 212 structure avoids stress concentration and can effectively disperse stress when the hanger 4 is subjected to repeated pulling and impact, reducing the risk of cracks or breakage of the inner wall of the retaining groove 21 due to fatigue.

[0039] In this embodiment, the mounting component 4 includes an anti-detachment mounting plate 41 and a mounting base 42. The mounting base 42 is fixedly connected to the anti-detachment mounting plate 41, and the anti-detachment slot 401 is opened in the anti-detachment mounting plate 41. The anti-detachment component also includes a connector 43, and the fixing seat 5 is fastened to the mounting base 42 through the connector 43.

[0040] Optionally, for ease of replacement and maintenance, the connector 43 includes a bolt 431 and a nut 432. The bolt 431 passes through the mounting base 42 and the fixing seat 5 in sequence and is threaded to the nut 432. Further, the bolt 431 is an internal hex bolt 431, and the nut 432 is a nylon nut 432.

[0041] Furthermore, the connector 43 also includes a washer 433, which is disposed between the nut 432 and the fixing seat 5. This arrangement allows the washer 433 to form an elastic or rigid buffer layer between the nut 432 and the fixing seat 5 when the nut 432 is tightened, effectively preventing indentations or wear on the surface of the fixing seat 5 during tightening. Simultaneously, the washer 433 fills the microscopic gap between the nut 432 and the fixing seat 5, increasing the contact area to distribute the tightening pressure and preventing the nut 432 from loosening under long-term vibration, thereby significantly improving the locking reliability of the connector 43.

[0042] Optionally, the anti-detachment hanging plate 41 includes an anti-detachment part 411, a transition arc part 412 and a connecting part 413. The transition arc part 412 is connected between the anti-detachment part 411 and the connecting part 413. The anti-detachment groove 401 is formed in the anti-detachment part 411, and the connecting part 413 is fixedly connected to the mounting base 42.

[0043] This configuration, by setting the anti-detachment mounting plate 41 as a three-section integrated structure including the anti-detachment part 411, the transition arc part 412, and the connecting part 413, and by opening the anti-detachment slot 401 in the anti-detachment part 411 and fixing the connecting part 413 to the base, achieves a clear division of labor and synergistic effect among the functional areas of the anti-detachment mounting plate 41. The fixed connection between the connecting part 413 and the base constitutes the load-bearing foundation of the entire mounting system, ensuring the robustness and reliability of the overall structural connection. The anti-detachment part 411, as the direct load-bearing area, has its anti-detachment slot 401 providing the main limiting function through its stop cooperation with the edge of the groove. The spatial separation of the anti-detachment part 411 and the connecting part 413 avoids the superposition of stress around the anti-detachment slot 401 with the welding heat-affected zone or assembly stress zone of the connecting part 413, effectively optimizing the force path and stress distribution of the anti-detachment mounting plate 41.

[0044] Most importantly, the transition arc-shaped section 412 connects the anti-detachment part 411 and the connecting part 413. Its smooth arc-shaped transition structure can smoothly guide the force flow between the anti-detachment part 411 and the connecting part 413. When the sand box 3 is subjected to vibration or impact load, the transition arc-shaped section 412 can effectively absorb and buffer the bending moment and shear force between the anti-detachment part 411 and the connecting part 413, avoiding stress concentration at the junction of the anti-detachment part 411 and the connecting part 413. This significantly reduces the risk of fatigue fracture of the anti-detachment hanging plate 41 under long-term alternating load, thereby greatly improving the overall structural strength, impact toughness and service life of the anti-detachment hanging plate 41. Meanwhile, this three-section structural design makes the anti-detachment mounting plate 41 have good processability in stamping or bending forming processes. The transition arc surface 412 not only serves as a mechanical buffer area, but also provides clearance space when the anti-detachment mounting plate 41 is installed into or removed from the mounting base 2, avoiding interference or scratching between the rigid corner of the anti-detachment part 411 and the connecting part 413 and the inner wall of the groove, further improving the smoothness of disassembly and assembly.

[0045] Optionally, the mounting base 42 is fixed to the anti-detachment hanging plate 41 by welding.

[0046] Optionally, the fixing seat 5 is cylindrical, and the outer peripheral wall of the fixing seat 5 is fixedly connected to the sand box 3. The cylindrical structure makes the space occupied by the fixing seat 5 on the wall of the sand box 3 more compact, which is conducive to the reasonable layout of multiple fixing seats 5 in a limited space, and provides convenience for the installation and maintenance of the subsequent connecting parts 43.

[0047] Optionally, the anti-detachment slot 401 is square, and the corners of the anti-detachment slot 401 are formed with transition arcs. By setting the anti-detachment slot 401 to be square and forming transition arcs at all four corners, the straight side of the main body of the square slot can provide ample and regular lateral displacement space for the hanger 4, ensuring that the hole wall of the anti-detachment slot 401 and the edge of the groove of the retaining groove 21 form a uniform and sufficient blocking contact surface in the width direction, thereby effectively improving the load-bearing capacity and force uniformity of the anti-detachment limit; at the same time, the transition arcs at each corner can eliminate the inherent sharp edges of the square slot, effectively avoiding stress concentration in the corner area of ​​the slot when the hanger 4 is repeatedly pulled or vibrated, significantly reducing the risk of the hole wall cracking due to fatigue or even breaking failure, thereby greatly improving the structural strength and impact resistance durability of the hanger 4. In addition, the transition arc portion can form a smooth transition fit with the inner wall of the retaining groove 21 during the process of inserting or removing the hook 4, so as to avoid the square right angle scraping the inner wall of the retaining groove 21 or causing hard jamming during disassembly and assembly.

[0048] It should be noted that the installation position of the anti-detachment component must ensure that the deviation between the center of the anti-detachment slot 401 and the center of the mounting base 2 is not too large, so that the mounting base 2 can pass through the anti-detachment slot 401 without affecting the installation when the sand box 3 is installed.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A sand spreading device for locomotives, suitable for locomotives, the locomotive including a bogie frame (1) and a mounting base (2), the mounting base (2) being fixedly disposed on the bogie frame (1), characterized in that, The locomotive sand spreading device includes: Sand box (3), the sand box (3) is fixedly installed to the mounting base (2); The anti-detachment component includes a hook (4) and a fixing seat (5). The hook (4) is fixedly installed to the fixing seat (5), and the fixing seat (5) is fixedly connected to the sand box (3). The hook (4) has an anti-detachment slot (401) through it. The mounting seat (2) has a retaining groove (21). At least part of the hole wall of the anti-detachment slot (401) and the inner wall of the retaining groove (21) form a blocking limit to restrain the sand box (3) from detaching from the mounting seat (2).

2. The locomotive sand spreading device according to claim 1, characterized in that, The upper wall of the anti-detachment groove (401) is lower than the edge of the groove of the retaining groove (21).

3. The locomotive sand spreading device according to claim 1, characterized in that, The retaining groove (21) has a bottom wall (211) and two inclined arc surfaces (212), which are located on opposite sides of the bottom wall (211).

4. The locomotive sand spreading device according to claim 1, characterized in that, The mounting component (4) includes an anti-detachment mounting plate (41) and a mounting base (42). The mounting base (42) is fixedly connected to the anti-detachment mounting plate (41). The anti-detachment slot (401) is opened in the anti-detachment mounting plate (41). The anti-detachment component also includes a connector (43). The fixing seat (5) is fastened to the mounting base (42) through the connector (43).

5. The locomotive sand spreading device according to claim 4, characterized in that, The connector (43) includes a bolt (431) and a nut (432). The bolt (431) passes through the mounting base (42) and the fixing seat (5) in sequence and is threaded to the nut (432).

6. The locomotive sand spreading device according to claim 5, characterized in that, The connector (43) also includes a washer (433) disposed between the nut (432) and the fixing seat (5).

7. The locomotive sand spreading device according to claim 4, characterized in that, The anti-detachment hanging plate (41) includes an anti-detachment part (411), a transition arc part (412), and a connecting part (413). The transition arc part (412) is connected between the anti-detachment part (411) and the connecting part (413). The anti-detachment groove (401) is opened in the anti-detachment part (411), and the connecting part (413) is fixedly connected to the mounting base (42).

8. The locomotive sand spreading device according to claim 4, characterized in that, The mounting base (42) is fixed to the anti-detachment plate (41) by welding.

9. The locomotive sand spreading device according to any one of claims 1-8, characterized in that, The fixing seat (5) is cylindrical, and the outer peripheral wall of the fixing seat (5) is fixedly connected to the sand box (3).

10. The locomotive sand spreading device according to any one of claims 1-8, characterized in that, The anti-detachment slot (401) is square, and the corners of the anti-detachment slot (401) are formed with transition arcs.

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