Split type shell, brake device and rail vehicle

Abstract

The invention provides a split type shell, a brake device and a railway vehicle, and belongs to the technical field of railway vehicles. The split type shell comprises a shell body composed of a first shell body and a second shell body which are detachably connected; a mounting space suitable for mounting a plurality of brake components is defined by the shell body, a plurality of guide protrusions are arranged in the axial direction of the inner wall of the mounting space, and the guide protrusions are suitable for guiding and circumferentially limiting the brake components to be mounted in the mounting space; the brake components can be installed in the whole installation space through the guide protrusions, the circumferential freedom degree of the brake components can be limited, it is ensured that the brake components cannot rotate in the circumferential direction, and it is possible that the multiple brake components are arranged in a stacked mode, that is, the number of the brake components can be increased or decreased according to the braking force requirement; in this way, the braking requirement can be met only through one braking device, the structure of an existing braking device is greatly simplified, and the weight of the existing braking device is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and in particular to a split housing, a braking device and a rail vehicle. Background Art

[0002] Usually, the basic braking device used in EMUs and subways is an air brake caliper combined with a brake disc, while the basic braking device of trams is a hydraulic brake caliper combined with a brake.

[0003] The above two are the mainstream braking types. The brake calipers in both types require large size and installation space, occupying a large amount of space in the bogie, making it difficult to simplify the frame structure. In addition, each caliper can only clamp one brake disc, that is, there are only two friction pairs, which are small in number. Therefore, each bogie needs to be equipped with multiple brake calipers and brake discs to meet the required braking force requirements, resulting in a large overall weight and a complex bogie structure, which cannot be simplified and lightweight.

[0004] Moreover, due to the limitation of the supporting shell, the braking capacity of the braking components supported in each shell is limited and cannot be effectively expanded, making it difficult for the conventional mainstream braking device to achieve lightweight. Summary of the invention

[0005] The present invention provides a split housing, a brake device and a rail vehicle, which are used to solve the defects of the brake device in the prior art that the brake device is heavy, has a large number of configurations and is difficult to be lightweight.

[0006] The present invention provides a split housing, comprising a housing body consisting of a first housing and a second housing that are detachably connected;

[0007] The shell body defines an installation space suitable for installing multiple brake components, and multiple guide protrusions are constructed axially along the inner wall of the installation space. The guide protrusions are suitable for guiding the brake components to be installed in the installation space, and the guide protrusions are configured to limit the circumferential movement of the brake components.

[0008] According to the split housing provided by the present invention, a dividing portion is installed in the housing body, and the dividing portion divides the installation space into two independent assembly spaces.

[0009] According to the split housing provided by the present invention, the dividing portion is composed of a first dividing plate connected to the first shell and a second dividing plate connected to the second shell.

[0010] According to the split housing provided by the present invention, the guide protrusion is arranged in parallel with the axis.

[0011] According to the split housing provided by the present invention, a plurality of heat dissipation through holes are constructed on the main body wall of the housing body, and the heat dissipation through holes connect the installation space with the external space.

[0012] According to the split housing provided by the present invention, the heat dissipation through hole is parallel to the axis, and the heat dissipation through hole is arranged on the guide protrusion and between every two adjacent guide protrusions.

[0013] According to the split housing provided by the present invention, both ends of the housing body are respectively constructed with annular connecting flanges.

[0014] According to the split housing provided by the present invention, a connecting rod mounting seat is configured on the top of the housing body.

[0015] Another aspect of the present invention provides a braking device, comprising a braking component, wherein the braking component is installed in a housing, and the housing is a split housing as described in any of the above embodiments.

[0016] Another aspect of the present invention provides a rail vehicle, comprising an axle, to which the braking device of the above embodiment is connected.

[0017] According to the above embodiments, the present invention has at least the following beneficial effects:

[0018] The present invention provides a split housing, which defines an installation space through a split housing body, and a guide protrusion in the installation space, so that the entire installation space can be used to install a brake component through the guide protrusion, and the guide protrusion can limit the circumferential freedom of the brake component, ensuring that the brake component does not rotate circumferentially, and at the same time, it provides the possibility of stacking multiple brake components, that is, the number of brake components can be increased or decreased according to the braking force requirements, so that only one set of brake devices is needed to meet the braking requirements, which greatly simplifies the structure of the existing brake device and greatly reduces the weight of the existing brake device. In addition, the detachable split type makes it easy to disassemble the shell and facilitate the maintenance of the brake component.

[0019] Another aspect of the present invention provides a braking device, which performs braking by assembling braking components on a shell body. Due to the stacked assembly method, the number of braking components can be adjusted according to the braking force requirements, so that only one set of braking devices is required on an axle to meet the braking requirements, which greatly reduces the number of braking devices and thus reduces the mass of the braking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 It is a structural schematic diagram of the split housing provided by the present invention;

[0022] Figure 2 It is one of the exploded structural schematic diagrams of the split housing provided by the present invention;

[0023] Figure 3 This is the second schematic diagram of the explosion structure of the split housing provided by the present invention.

[0024] Reference numerals:

[0025] 100: housing body; 101: first housing; 102: second housing; 103: partition; 103-1: first partition plate; 103-2: second partition plate; 103-3: connecting hole; 103-4: bushing; 104: guide protrusion; 105: connecting flange; 106: connecting rod mounting seat; 107: connecting part; 108: heat dissipation through hole. DETAILED DESCRIPTION

[0026] 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.

[0027] In the description of the embodiments of the present invention, it should be noted that the terms "axial", "upper", "lower", "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.

[0028] 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.

[0029] In the description of this specification, the description with reference to the terms "specific embodiment", "some embodiments", etc. 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 representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0030] As people's requirements for rail vehicle riding comfort and vehicle energy consumption increase, the demand for lightweight bogies is getting higher and higher. However, the traditional basic brake device is heavy and has a large number of configurations. Each bogie is generally equipped with four clamps and four brake discs, weighing nearly 800kg. The heavy weight brings higher energy consumption and higher inter-spring weight. Based on this purpose, the present invention provides a new support shell for the brake component, and the purpose of lightweighting can be achieved through the structure of the shell.

[0031] Combine the following Figure 1-Figure 3 The present invention describes a split housing, which is constructed as a cylindrical cage structure and is suitable for being configured in a compound brake device as a housing. The split housing includes a housing body 100 composed of a first shell 101 and a second shell 102 that are detachably connected; the housing body 100 defines an installation space suitable for installing multiple brake components, and a plurality of guide protrusions 104 are constructed along the axial direction of the inner wall of the installation space, and the guide protrusions 104 are suitable for guiding and circumferentially limiting the installation of the brake components in the installation space.

[0032] The first shell 101 and the second shell 102 are constructed as a semicircular shell structure. The first shell 101 and the second shell 102 are detachably connected to form a cylindrical shell body 100. A channel-like installation space is formed in the shell body 100. Multiple brake components can be installed in the installation space in a stacked manner. A plurality of guide protrusions 104 arranged along the axial direction are constructed on the inner wall of the installation space, that is, the inner wall of the channel, and the brake component can enter the installation space through the guidance of the guide protrusions 104, and the circumferential freedom of the brake component can be limited by the guide protrusions 104.

[0033] It can be understood that in order to cooperate with the guide protrusion 104, a groove opening that matches the size of the guide protrusion 104 is constructed on the brake component. The brake component is a brake disc, that is, a groove opening is opened around the edge of the brake disc, so that the brake disc is an external toothed structure (not shown in the figure), and the brake disc is assembled into the installation space by the cooperation and sliding of the guide protrusion 104 and the groove opening.

[0034] It can be foreseen that after the guide protrusion 104 is matched with the notch, the circumferential degree of freedom of the brake component is also limited, and it can bear the circumferential torque transmitted by the brake component during operation. Specifically, a corresponding number of brake components can be set in the same installation space according to the demand for braking force, and multiple brake components are assembled in the installation space in a stacked manner, which enables the present invention to be applied to more and more flexible application scenarios. Even for scenarios with greater braking force requirements, the axial extension length of the shell body 100 can be extended to increase the installation space to meet greater braking force requirements, further enabling the shell of the present invention to adapt to more flexible application scenarios, and the shell structure makes it possible for a set of devices to provide sufficient braking force, providing a feasible solution for reducing the number of brake devices and reducing the weight of the brake devices. After the brake component is connected, due to the circumferential restriction of the guide protrusion 104 on the brake component, the circumferential torque is transmitted to the restricted guide protrusion 104 when the guide component is working, so that the circumferential torque of the brake component is borne by the guide protrusion 104.

[0035] The guide protrusion 104 and the shell body 100 are constructed in an integrally formed manner, for example, by casting. The integrally formed manner can provide the guide protrusion 104 with a more stable and reliable structural strength, thereby making the overall structural strength higher.

[0036] like Figure 2 , Figure 3As shown, the outer walls of the first housing 101 and the second housing 102 are respectively provided with connecting parts 107, and the connecting parts 107 are arranged to extend in the axial direction, so that the first housing 101 and the second housing 102 can be detachably connected through the connecting parts 107. Specifically, the connecting parts 107 are arranged in the axial direction of the entire first housing 101 and the second housing 102, and the connecting parts 107 have a plurality of bolt holes, and the first housing 101 and the second housing 102 are detachably connected up and down by bolts, which will be extremely convenient when the brake device needs to be disassembled. And because the existing brake devices mostly use annular brake discs, and the brake discs need to be maintained regularly, the existing technology for disassembling the brake device usually adopts the method of disassembling all brakes, which undoubtedly makes the disassembly very difficult. The detachable structure in the present invention solves this problem, and the internal brake disc can be maintained by disassembling the housing, which is significantly convenient.

[0037] In a specific embodiment, there is no limitation on the arrangement of the guide protrusion 104 . For example, the guide protrusion 104 may be arranged obliquely (not shown in the figure) or may be arranged parallel to the axis L of the housing body 100 .

[0038] The guide protrusion 104 is arranged in a strip-shaped structure and installed on the inner wall of the space. The setting parallel to the axis L can facilitate the matching processing of the brake component. From the above description, it can be seen that when the brake component is assembled in the shell body 100, it is necessary to process the matching groove opening of the brake component to achieve guided assembly and limit circumferential movement by matching the groove opening. Obviously, the processing process of the guide protrusion 104 and the groove opening parallel to the axis L is simpler and the installation is more convenient.

[0039] Furthermore, the edge of the guide protrusion 104 is processed into a rounded corner, which can facilitate the cooperation with the brake component and slide into the installation space along the guide protrusion 104, so that the brake components can be arranged in the installation space in a stacked manner.

[0040] like Figure 1 As shown, in some embodiments, a plurality of heat dissipation holes 108 are constructed on the main wall of the shell body 100 composed of the first shell 101 and the second shell 102. The heat dissipation holes 108 can connect the installation space with the external environment space to achieve rapid transfer of heat in the installation space to the external space.

[0041] Specifically, the heat dissipation through hole 108 is constructed as a long strip through hole structure. In the specific opening, the heat dissipation through hole 108 is parallel to the axis L of the shell body 100, and the heat dissipation through hole 108 is arranged on the guide protrusion 104 and the main body wall between every two adjacent guide protrusions 104.

[0042] The heat dissipation holes 108 with multiple strip-shaped through-hole structures make the shell body 100 a hollow structure. The hollow structure can provide a larger heat exchange channel for heat dissipation, and also contribute to the overall lightweight of the shell. At the same time, it reduces the contact area between the braking component and the inner surface of the shell body 100 to ensure contact flatness.

[0043] Moreover, the heat dissipation through holes 108 of the strip hole structure are arranged between two adjacent guide protrusions 104 and on the guide protrusions 104. Specifically, the heat dissipation through holes 108 are arranged equidistantly around the main wall of the housing body 100, the heat dissipation through holes 108 are opened on the guide protrusions 104, and the heat dissipation through holes 108 are also opened between adjacent guide protrusions 104.

[0044] Among them, multiple heat dissipation holes 108 can be opened between two adjacent guide protrusions 104, or one heat dissipation hole 108 can be opened. Specifically, if multiple heat dissipation holes 108 are opened between adjacent guide protrusions 104, and the size of each heat dissipation hole 108 is smaller than the size of opening one heat dissipation hole 108, then the heat dissipation effect is reduced. Of course, if higher structural strength is required, it is possible to choose to open multiple smaller heat dissipation holes 108 between the guide protrusions 104. It is foreseeable that there are connecting parts 107 of the shell body 100 between the multiple smaller heat dissipation holes 108. Multiple connecting parts 107 can make the overall structural strength higher and have a certain heat dissipation capacity.

[0045] And because the through hole opened on the guide protrusion 104 needs to consider the main structure of the guide protrusion 104, the heat dissipation through hole 108 opened on the guide protrusion 104 is located inside the guide protrusion 104, and the heat dissipation through hole 108 is smaller than the structure of opening a heat dissipation through hole 108 between two guide protrusions 104.

[0046] In some embodiments, both ends of the housing body 100 composed of the first shell 101 and the second shell 102 are respectively configured with an annular connection flange 105. The annular connection flange 105 allows the two end surfaces to be connected to achieve a braking effect on the connection part 107 or a fixing effect as a brake.

[0047] Specifically, the connecting flanges 105 at both ends are arranged around the edge of the shell body 100 to form an annular flange. The end cover and the hydraulic actuator can be installed at one end of the shell body 100. At the same time, the annular flange can be connected to the axle sleeve to form the entire sleeve for bearing the weight of the vehicle, providing a feasible solution for a highly integrated structure.

[0048] Furthermore, the connecting flanges 105 at both ends protrude from the outer wall surface of the shell body 100 , and a plurality of reinforcing ribs are connected at the connecting position between the connecting flanges 105 and the shell body 100 , and the reinforcing ribs are used to improve the structural strength of the connecting flanges 105 .

[0049] In some embodiments, a partition 103 is installed in the housing body 100, and the installation space can be divided into two independent assembly spaces by the partition 103. The partition 103 is a circular ring structure, which enables the independent assembly of the brake components in the independent assembly space, forming the installation of independent brake components on both sides, so that even if the brake disc on one side loses the braking force, the brake components on the other side can still provide braking force. Compared with a single braking method, the independent arrangement of the two sides improves safety redundancy and can provide an effective and reliable solution for the safety and stability of braking.

[0050] Specifically, a first partition plate 103-1 is connected to the inner wall of the first shell 101, and a second partition plate 103-2 is connected to the inner wall of the second shell 102. After the first shell 101 and the second shell 102 are connected, the corresponding first partition plate 103-1 and the second partition plate 103-2 are in contact and abutment with each other to achieve the division of the installation space.

[0051] Furthermore, the first partition plate 103-1 is fixedly connected to the inside of the first shell 101, the second partition plate 103-2 is fixedly connected to the inside of the second partition plate 103-2, and the first partition plate 103-1 is located in the middle of the first shell 101, and the corresponding second partition plate 103-2 is located in the middle of the second partition plate 103-2. Moreover, the first partition plate 103-1 and the second partition plate 103-2 are both semicircular ring structures, and when the first shell 101 and the second shell 102 are combined, the first partition plate 103-1 and the second partition plate 103-2 are combined into a ring structure.

[0052] It can be understood that, since the partition 103 divides the installation space into two independent assembly spaces, the first partition plate 103-1 and the second partition plate 103-2 are respectively connected to the inside of the first shell 101 and the inside of the second shell 102, so the first partition plate 103-1 and the second partition plate 103-2 isolate the heat dissipation through holes 108 on the shell body 100, so that the heat dissipation through holes 108 are respectively arranged on both sides of the middle partition 103, and the two assembly spaces can be cooled respectively. Correspondingly, the guide protrusions 104 arranged inside the first shell 101 and the second shell 102 are also separated by the first partition plate 103-1 and the second partition plate 103-2, so that the brake components in the assembly spaces on both sides will not affect each other and work independently.

[0053] The first partition plate 103-1 and the second partition plate 103-2 can be integrally formed with the shell body 100. The integral forming can be achieved by various processes, such as casting, which can provide better stability and reliability for each partition plate and have higher structural strength.

[0054] A plurality of communication holes 103 - 3 are processed on the first partition plate 103 - 1 and the second partition plate 103 - 2 respectively. The plurality of communication holes 103 - 3 are evenly arranged around the first partition plate 103 - 1 and the second partition plate 103 - 2.

[0055] Specifically, a bushing 103-4 is connected to the connecting hole 103-3, and the bushing 103-4 protrudes from the two sides of the partition plate, so that there is a certain gap when the brake components are assembled on both sides. That is, there is a certain gap between the brake components in the independent spaces on both sides, which enables the brake components on both sides to work independently without affecting each other. The connecting hole 103-3 also makes the partition plate lightweight, contributing to the overall lightweight.

[0056] Furthermore, a connecting rod mounting seat 106 is constructed on the shell body 100, and the connecting rod mounting seat 106 is arranged on the top of the shell body 100. Specifically, it can be constructed on the first shell 101 or on the second shell 102. The connecting rod mounting seat 106 can be used to install a balance bar to balance the traction and braking torque.

[0057] Specifically, the connecting rod mounting seat 106 includes a base with a notch configured on the base, and bolt connection holes are independently provided on the base on both sides of the notch, and the balance rod is connected and installed through the bolt connection holes, so as to achieve the purpose of balancing traction and braking torque.

[0058] Moreover, the connecting rod mounting seat 106 is integrally formed with the shell body 100 , and there are various ways to achieve the integral forming. For example, the base and the shell body 100 can be integrally formed by casting, and then the base is processed to form the connecting rod mounting seat 106 , which can improve the structural strength of the connecting rod mounting seat 106 .

[0059] It is understandable that the connecting rod mounting seat 106 is used to install the balance bar and needs to bear the force transmission. In order to improve its stability and reliability, no heat dissipation holes 108 are provided on both sides of the connecting rod mounting seat 106 extending to the two ends of the shell body 100, that is, both sides of the connecting rod mounting seat 106 are parts of the shell body 100, which can make the connecting rod mounting seat 106 have stronger structural strength and improve stability and reliability.

[0060] Another aspect of the present invention provides a braking device, including a braking component, wherein the braking component is installed in a shell, and the shell is a split shell of any of the above embodiments.

[0061] Among them, the brake component uses a disc-shaped brake disc, which is installed in a stacked manner inside the split shell; further, brake discs are stacked and installed in independent assembly spaces on both sides of the split shell, and the number of brake discs on both sides is the same.

[0062] Another aspect of the present invention provides a rail vehicle, which includes an axle, and the brake device of the above embodiment is connected to the axle. The brake device serves as a sleeve of the axle and a part of the axle sleeve, thereby improving the integration of the axle.

[0063] It is understandable that the rail vehicle may be a train, a subway, or the like.

[0064] Through the description of the above embodiments, the technicians in this field can clearly understand that in each embodiment, the housing body 100 is composed of two detachable first shells 101 and second shells 102, which can facilitate the disassembly of the brake device, making the device more convenient to maintain. Further, the independent assembly space on both sides can perform braking operations independently on both sides, which improves safety redundancy; further, the two ends are provided with connecting flanges 105, and the brake can be installed on the axle sleeve, which can be used as a part of the axle to bear the weight of the vehicle, and the structure is highly integrated; further, only one set of braking devices can be set for each axle, so that it is possible to increase or decrease the number of braking components according to the braking force requirements, that is, the required number of friction pairs can be set through the housing body 100 structure to meet the required braking force requirements, and the housing body 100 can be expanded according to the number of discs plus the axial length, and has strong expansion capacity; further, a connecting rod mounting seat 106 is set at the top of the housing body 100 for installing a balance bar to balance the traction and braking torque.

[0065] 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 split housing, characterized in that: A housing body comprising a first housing and a second housing that are detachably connected; The shell body defines an installation space suitable for installing multiple brake components, and multiple guide protrusions are constructed axially along the inner wall of the installation space. The guide protrusions are suitable for guiding the brake components to be installed in the installation space, and the guide protrusions are configured to limit the circumferential movement of the brake components.

2. The split housing according to claim 1, characterized in that: A dividing portion is configured in the shell body, and the dividing portion divides the installation space into two independent assembly spaces.

3. The split housing according to claim 2, characterized in that: The partition portion is composed of a first partition plate connected to the first shell and a second partition plate connected to the second shell.

4. The split housing according to claim 1, characterized in that: The guide protrusion is arranged in parallel with the axis.

5. The split housing according to claim 1, characterized in that: A plurality of heat dissipation through holes are formed on the shell body, and the heat dissipation through holes connect the installation space with the external space.

6. The split housing according to claim 5, characterized in that: The heat dissipation through hole is parallel to the axis, and the heat dissipation through hole is arranged on the guide protrusion and between two adjacent guide protrusions.

7. The split housing according to claim 1, characterized in that: Both ends of the housing body are respectively configured with an annular connecting flange.

8. The split housing according to claim 1, characterized in that: A connecting rod mounting seat is configured on the top of the housing body.

9. A braking device, characterized in that: It comprises a braking component, wherein the braking component is installed in a shell, and the shell is a split shell as described in any one of claims 1-8.

10. A rail vehicle, characterized in that: It comprises an axle, to which the braking device as claimed in claim 9 is connected.

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