Positioning pulling plate, primary connection structure, bogie and railway vehicle

Abstract

The invention provides a positioning pulling plate, a primary connecting structure, a bogie and a railway vehicle, and belongs to the technical field of railway vehicles, the positioning pulling plate comprises a plate body, and the plate body is provided with a first connecting end and a second connecting end; the plate body extends to the second connecting end from the first connecting end in the first direction in the mode that the plate body is gradually folded in the second direction. The two faces of the plate body are each internally provided with an integrally-formed reinforcing part, and the reinforcing parts extend to the second connecting end from the first connecting end in the first direction in the mode that the reinforcing parts are gradually expanded outwards in the third direction. One end of the positioning pulling plate is constructed to be large in width, the other end of the positioning pulling plate is constructed to be small in width, so that connection of components at the two ends of the pulling plate is achieved, the whole pulling plate is roughly of a fin-shaped structure, occupied space is greatly reduced, and small installation space is achieved; the compression resistance stability of the positioning pulling plate can be improved, and the rigidity is large.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and in particular to a positioning pull plate, a series of connecting structures, a bogie and a rail vehicle. Background Art

[0002] In the structure of railway locomotives, bogies are an important part. In the structure of the intergenerational bogie, the bogie is built-in, that is, the bogie is located inside the wheelset, and the available space is small; at the same time, the axleless box structure, how to achieve the longitudinal and lateral positioning of the axle sleeve in a limited and narrow space and release the vertical degree of freedom is an important issue that the industry needs to solve urgently. Summary of the invention

[0003] The invention provides a positioning pull plate, a series of connection structures, a bogie and a rail vehicle, which are used to solve the defects of shaft sleeve connection in a relatively small space in the prior art.

[0004] The present invention provides a positioning pull plate, comprising a plate body, wherein the plate body has a first connecting end and a second connecting end;

[0005] The plate body extends from the first connection end along the first direction to the second connection end in a manner of gradually contracting in the second direction;

[0006] In addition, the two surfaces of the plate body respectively have an integrally formed reinforcement portion, and the reinforcement portion extends from the first connection end along the first direction to the second connection end in a manner of gradually diffusing in the third direction.

[0007] According to a positioning pull plate provided by the present invention, the reinforcement portion extends along the first direction in a manner of gradually contracting in the second direction;

[0008] Wherein, the first connection end and the second connection end are perpendicular to each other.

[0009] According to a positioning pull plate provided by the present invention, the reinforcement portion extends along the first direction in a manner of gradually contracting in the second direction.

[0010] According to a positioning pull plate provided by the present invention, the extension of the reinforcement portion along the third direction is non-linear.

[0011] According to a positioning pull plate provided by the present invention, the extent to which the reinforcing portion is retracted in the second direction is greater than the extent to which the plate body is retracted in the second direction.

[0012] A second aspect of the present invention provides a series connection structure, including a shaft sleeve and a positioning node, wherein a positioning pull plate as described in the above embodiment is connected between the shaft sleeve and the positioning node.

[0013] According to a series of connection structures provided by the present invention, a node mounting seat is connected to the positioning node, and the node mounting seat is connected to the positioning pull plate.

[0014] According to a series of connection structures provided by the present invention, both ends of the positioning node are connected to frame side mounting seats, and the frame side mounting seats are suitable for supporting the frame.

[0015] According to a series of connection structures provided by the present invention, the node side mounting seat includes a first mounting seat and a second mounting seat, the first mounting seat is buckled and connected with the second mounting seat, wherein a connection block is integrally formed on the first mounting seat.

[0016] A third aspect of the present invention provides a bogie, comprising:

[0017] Wheelset;

[0018] A series connection structure described in any of the above embodiments is connected to the wheelset.

[0019] A fourth aspect of the present invention further provides a rail vehicle, comprising the positioning pull plate according to any one of the above embodiments;

[0020] Or, a series of connection structures including any one of the above embodiments;

[0021] Or, including the bogie described in the above example.

[0022] Through the above embodiments, the present application has at least the following beneficial effects:

[0023] The present invention provides a positioning pull plate, which realizes the connection between the two end parts of the pull plate by constructing one end of the positioning pull plate to be wider and the other end to be narrower. The overall structure is roughly "fish fin-shaped", which greatly reduces the space occupied and realizes a smaller installation space. A raised reinforcement portion is provided on the connecting pull plate, which can improve the compressive stability of the positioning pull plate and has greater rigidity.

[0024] According to the second aspect of the present invention, one end of the positioning connecting plate is connected to the positioning node. Due to the large width dimension in the lateral direction and the large rigidity, an effective series of lateral constraint rigidity is achieved, while the vertical bending rigidity is small, and a smaller series of vertical constraint rigidity is achieved together with the positioning node. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is one of the structural schematic diagrams of the positioning pull plate connection provided by the present invention;

[0027] Figure 2 This is the second structural schematic diagram of the positioning pull plate connection provided by the present invention;

[0028] Figure 3 This is the third structural schematic diagram of the positioning pull plate connection provided by the present invention.

[0029] Reference numerals:

[0030] 100: positioning pull plate; 101: first connection end; 101-1: reinforcement connection end; 102: plate body; 103: reinforcement part; 104: second connection end; 200: bushing; 201: coupling end; 300: positioning node; 400: wheelset; 500: node mounting seat; 501: first mounting seat: 501-1: connection block; 502: second mounting seat; 600: frame side mounting seat. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the embodiments of the present invention, it should be noted that the terms "lateral", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0034] In the description of this specification, the description with reference to the terms "specific embodiment", "some embodiments", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

[0035] Combine the following Figure 1-Figure 3 A positioning pull plate of the present invention is described, in which the first direction is Dx, the second direction is Dy, and the third direction is Dz. The positioning pull plate 100 includes a plate body 102, the plate body 102 has a first connection end 101 and a second connection end 104; the plate body 102 extends from the first connection end 101 along the first direction Dx to the second connection end 104 in a manner of gradually converging in the second direction Dy; and the two sides of the plate body 102 are respectively provided with a reinforcement part 103, and the reinforcement part 103 extends from the first connection end 101 along the first direction Dx to the second connection end 104 in a manner of gradually spreading out in the third direction Dz.

[0036] The plate body 102 gradually converges in the second direction Dy of extension so that the distance between the two sides of the plate body 102 extending to the second connection end 104 gradually narrows, which is conducive to installation in a small space, and the reinforcement part 103 on both sides of the plate body 102 gradually diffuses and thickens in the third direction Dz, that is, the plate body 102 is thinner on the side close to the first connection end 101 than on the side close to the second connection end 104, and the thickness at the second end is the thickest by gradually thickening the reinforcement part 103, which can provide the plate body 102 with greater compressive stability and greater structural rigidity. Figure 1 As shown, the first direction is the length direction of the plate body 102, the second direction Dy is the width direction of the plate body 102, and the third direction Dz is the thickness direction of the plate body 102. When the first connecting end 101 and the second connecting end 104 are connected to components respectively, due to their larger dimensions in the width direction, the plate body 102 has greater rigidity in the lateral direction. Conversely, the thickness of the plate body 102 on the side close to the first connecting end 101 is lower, so that it has smaller vertical rigidity, ensuring the vertical degree of freedom, so that the longitudinal force can be effectively transmitted.

[0037] The bogie in the intergenerational bogie is installed on the inner side of the wheelset 400, which makes the inner structural space smaller than the structural space of the bogie placed on the outer side. The first connecting end 101 of the positioning plate 100 of the present invention is a horizontal flat structure, and the second connecting end 104 is a vertical flat structure. This makes it possible for the positioning plate 100 to ensure the transmission of longitudinal force even in a small space while achieving large lateral stiffness and small longitudinal stiffness.

[0038] In a specific embodiment, the reinforcing portion and the plate body may be connected in any existing manner. For example, the reinforcing portion 103 and the plate body 102 are integrally formed, thereby improving the connection strength of the overall structure.

[0039] Continue as Figure 1 As shown, specifically, the reinforcing parts 103 on both sides of the plate body 102 are connected to the joining surfaces of the plate body 102 in a smooth curved surface, which can effectively reduce stress concentration and improve structural strength. The first connecting end 101 of the plate body 102 has three fixing screw holes arranged in a triangular position. The connection of the three fixing screw holes can make the first connecting end 101 have a stronger assembly strength.

[0040] Continue as Figure 1 As shown, the first connection end 101 and the second connection end 104 are perpendicular to each other. Specifically, the first connection end 101 is arranged horizontally, and the second connection end 104 is arranged vertically. Among them, when the reinforcing portion 103 extends along the first direction Dx, it gradually converges in the second direction Dy, that is, when the reinforcing portion 103 extends along the length direction of the plate body 102, it gradually narrows in the width direction of the plate body 102 and finally forms the second connection end 104 in the vertical direction.

[0041] Furthermore, the back side of the reinforcing portion 103 is an arc-shaped surface, that is, the reinforcing portion 103 extends in a nonlinear arc divergent manner, which makes the back side of the reinforcing portion 103 form a smooth curved surface. The smooth curved surface can reduce stress concentration and improve the structural strength of the plate body 102.

[0042] Continue as Figure 1 As shown, further, the back side of the reinforcing portion 103 near the first connecting end 101 is a divergent surface, and as the reinforcing portion 103 extends, its back side gradually narrows and concentrates into a vertically flat shape, eventually forming the second connecting end 104. The extension of the back side avoids stress concentration and further improves the structural strength of the plate body 102.

[0043] like Figure 2As shown, the degree of inward contraction of the reinforcing portion 103 during the extension along the first direction Dx is greater than the degree of inward contraction of the plate body 102 during the extension along the first direction Dx. Specifically, the distance between the two sides of the plate body 102 at the second connection end 104 is greater than the distance between the two sides of the second connection end 104 of the reinforcing portion 103, that is, the reinforcing portion 103 is always located in the upper and lower surfaces of the plate body 102, so that the reinforcing portion 103 functions as a reinforcing rib to provide the plate body 102 with stable compressive resistance.

[0044] Continue as Figure 2 As shown, the thickness of the plate body 102 is much smaller than the thickness of the reinforcing portion 103 , that is, the thickness of the reinforcing portion 103 is several times greater than the thickness of the plate body 102 , which enables the horizontal width of the first connecting end 101 to be equal to the vertical width of the second connecting end 104 .

[0045] Furthermore, the edges of both sides of the plate body 102 are in an overall arc shape, which makes the plate body 102 structure of the positioning pull plate 100 have a better pressure bearing capacity.

[0046] The second aspect of the present invention provides a series connection structure, including a sleeve 200 and a positioning node 300, and a positioning pull plate 100 in any of the above embodiments is connected between the sleeve 200 and the positioning node 300.

[0047] like Figure 3 As shown, specifically, the first connection end 101 of the positioning pull plate 100 is connected to the sleeve 200, the first connection section is horizontally arranged, and is connected by fixing bolts during connection, and the positions of the fixing bolts form a triangle, and the second connection end 104 of the positioning pull plate 100 is connected to the positioning node 300, the second connection end 104 is vertically arranged, and the second connection end 104 is connected to the positioning node 300 by bolts.

[0048] Furthermore, the first connection end 101 has a reinforcing connection end 101-1, which is integrally formed with the first connection end 101, and has a bolt hole on the reinforcing connection end 101-1, corresponding to two bolt holes on the first connection end 101, and the positions of the three bolt holes are arranged in a triangle. Specifically, the reinforcing connection end is a "fish fin"-shaped structure, so that the bolt hole on the reinforcing connection end 101-1 is located on the central extension line of the line between the two bolt holes on the first connection end 101, and further the position relationship of the three bolt holes forms an equilateral triangle structure, further improving the mechanical properties of the connection structure.

[0049] Continue as Figure 1 As shown, the positioning node 300 is connected to a node mounting seat 500 , and the node mounting seat 500 is directly connected to the positioning pull plate 100 , thereby realizing the connection between the positioning node 300 and the positioning pull plate 100 .

[0050] In some embodiments, the node mounting seat 500 includes a first mounting seat 501 of a semi-annular structure and a second mounting seat 502 of a semi-annular structure. The first mounting seat 501 and the second mounting seat 502 are fastened with bolts, and the positioning node 300 is placed in the fastened space and fixed.

[0051] The first mounting seat 501 has a protruding connection block 501 - 1 , and the connection block 501 - 1 can be used to connect with the second connection end 104 of the positioning pull plate 100 .

[0052] It can be understood that the first connection end 101 of the positioning pull plate 100 is fixedly connected to the sleeve 200 by bolts, and the first connection end 101 is horizontal and transverse, and the second connection end 104 of the positioning pull plate 100 is connected to the connection block 501-1 on the second mounting seat 502, and the second connection end 104 is vertical and longitudinal. Since the overall structure of the plate body 102 has a wider width dimension, the stiffness of the overall connection structure is relatively large, that is, the horizontal transverse direction has effective transverse constraint stiffness, and in the vertical longitudinal direction, since the thickness of the first connection end 101 of the plate body 102 is relatively thin, the longitudinal bending stiffness is relatively small, which enables it to effectively ensure the transmission of longitudinal force, and achieve a smaller longitudinal constraint stiffness with the positioning node 300, which can meet the freedom of transmission of longitudinal force.

[0053] Continue as Figure 1 As shown, the connection block 501 - 1 on the first mounting seat 501 is integrally formed, and the structural strength can be improved through the integral forming, so that the connection structure has stable compression resistance.

[0054] In some embodiments, a frame side mounting seat 600 is mounted on both ends of the positioning node 300 , respectively. The frame side mounting seat 600 is suitable for supporting the frame so as to transmit the longitudinal force to the frame.

[0055] Continue as Figure 2 As shown, the two sides of the core axis of the positioning node 300 are regular rectangular ends, and correspondingly, the side mounting seat of the 600 structure has a rectangular notch, and the notch cooperates with the rectangular end to constrain the circumferential movement of the side mounting seat of the 600 structure. In a specific embodiment, the side mounting seat of the 600 structure has an assembly end that cooperates with the positioning node 300 and a support end for supporting the structure.

[0056] In a specific embodiment, the positioning node 300 includes a core shaft, the middle part of which is fastened by a first mounting seat 501 and a second mounting seat 502. When fixed, the core shaft is fixed by tightening the two mounting seats by bolts. The two ends of the core shaft respectively have rectangular or other polygonal ends. The two ends of the core shaft can provide support positions for the architecture side mounting seats 600 to meet the support requirements of the architecture.

[0057] A third aspect of the present invention provides a bogie, such as Figure 1 As shown, the bogie includes a wheelset 400, and a first connection structure of any of the above embodiments is connected to the wheelset 400. Specifically, the wheelset 400 is connected to the shaft sleeve 200, and the shaft sleeve 200 has an extended end, which is connected to the positioning plate 100 through the extended end, and the positioning plate 100 is connected to the positioning node 300 through the node mounting seat 500.

[0058] In a specific embodiment, a bolt hole is processed on the protruding end of the sleeve 200, and the sleeve 200 is connected to the positioning plate 100 by bolts, wherein the positioning plate 100 has a reinforced connection end 101-1, thereby realizing a triangular arrangement of three bolts, which can further make the bogie have better connection strength.

[0059] The connection between the bushing 200 and the wheelset 400 is a rotational connection, which can ensure that the wheelset 400 can rotate relative to the bushing 200. A thickened coupling end 201 is provided at the coupling position of the protruding end of the bushing 400, which can ensure the structural strength of the protruding end and improve the structural stability of the bogie.

[0060] It can be understood that the arrangement of the positioning plate 100 on the bogie ensures that the longitudinal force transmission is achieved while achieving large lateral stiffness and small longitudinal stiffness even in the narrow space inside the wheelset 400, thereby effectively achieving connection and making the overall structure more compact.

[0061] The fourth aspect of the present invention provides a rail vehicle, comprising the positioning plate 100 provided by any of the above embodiments. The positioning plate 100 is placed in a series of connection structures of the rail vehicle to achieve the purpose of connecting plates in a narrow space.

[0062] The rail vehicle may also be equipped with a first-order connection structure provided by any of the above embodiments. That is, the first-order connection structure in the existing rail vehicle may be replaced, so that the positioning plate in the first-order connection structure is replaced with the positioning plate 100 structure in the above embodiment, so that one end of the positioning plate 100 is connected to the shaft sleeve 200, and the other end is connected to the positioning node 300.

[0063] Similarly, the bogie provided by any of the above embodiments may also be configured.

[0064] It is understandable that in the above-mentioned embodiments, the rail vehicle may be a motor vehicle, a subway, etc. During installation, since the bogie is located inside the wheelset 400, the space inside the wheelset 400 is small, making it inconvenient to connect the positioning plate 100, and since the positioning plate 100 in the bogie or the first-line connection structure needs to ensure the longitudinal force while having good lateral stiffness, it is not possible to arrange more components in the space to meet the requirements. The bogie and the first-line connection structure in the above-mentioned embodiments solve this problem, and the structure of the positioning plate 100 makes it easy to install even in a small space, and can ensure the longitudinal force transmission while having large lateral stiffness and small longitudinal stiffness.

[0065] Through the description of the above implementation mode, technicians in this field can clearly understand that the positioning pull plate 100 is roughly a "fish fin" structure as a whole, and the first connection end 101 of the positioning pull plate 100 is horizontal, and the second connection end 104 is a vertical structure, which realizes a smaller installation space, makes its longitudinal bending stiffness smaller, and realizes a smaller series of longitudinal constraint stiffness together with the positioning node 300. The width dimension in the transverse direction is larger and the stiffness is larger. An effective series of transverse constraint stiffness is achieved through the positioning node 300, and reinforcing ribs are arranged in the longitudinal direction to improve the compressive stability of the positioning pull plate 100 structure, and the stiffness is larger. An effective series of longitudinal constraint stiffness is achieved through the positioning node 300.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A positioning pull plate, characterized in that: It includes a plate body, wherein the plate body has a first connection end and a second connection end; The plate body extends from the first connection end along the first direction to the second connection end in a manner of gradually contracting in the second direction; The plate body has reinforcing parts on both sides thereof, and the reinforcing parts extend from the first connecting end along the first direction to the second connecting end in a manner of gradually spreading in the third direction; Wherein, the first connection end and the second connection end are perpendicular to each other.

2. The positioning pull plate according to claim 1, characterized in that: The reinforcement portion extends along the first direction and gradually converges in the second direction.

3. The positioning pull plate according to claim 1, characterized in that: The reinforcing portion extends in a non-linear manner along the third direction.

4. The positioning pull plate according to claim 2 or 3, characterized in that: The extent to which the reinforcing portion is retracted in the second direction is greater than the extent to which the plate body is retracted in the second direction.

5. A series connection structure, characterized in that: It comprises a shaft sleeve and a positioning node, wherein a positioning pull plate as described in any one of claims 1 to 4 is connected between the shaft sleeve and the positioning node.

6. The primary connection structure according to claim 5, characterized in that: The positioning node is connected to a node mounting seat, and the node mounting seat is connected to the positioning pull plate.

7. The primary connection structure according to claim 5, characterized in that: Both ends of the positioning node are connected with frame side mounting seats, and the frame side mounting seats are suitable for supporting the frame.

8. The primary connection structure according to claim 6, characterized in that: The node-side mounting seat includes a first mounting seat and a second mounting seat, wherein the first mounting seat is buckled and connected with the second mounting seat, wherein a connecting block is integrally formed on the first mounting seat.

9. A bogie, characterized in that: include: Wheelset; The wheelset is connected to a primary connection structure as described in any one of claims 5-8.

10. A rail vehicle, characterized in that: Comprising the positioning pull plate as described in any one of claims 1 to 4; Or, comprising a series connection structure as described in any one of claims 5 to 8; Or, comprising a bogie as claimed in claim 9.

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