Gearbox for bogie with built-in axle box and bogie system

Abstract

A gearbox for a bogie with a built-in axle box and a bogie system relate to the technical field of rail transit, are used for being connected with a bogie body, and comprise a gearbox shell, a safety stopper and a suspender assembly. Wherein a mounting part is arranged on the outer surface of the gearbox shell, and the safety stop piece is detachably connected with the mounting part; one end of the suspender assembly is connected with the gearbox shell, and the other end is connected with a bogie body; the safety stop piece is used for making contact with the bogie body after the suspender assembly is broken so as to limit falling of the gearbox shell. According to the structural design of the gearbox, the assembling difficulty can be reduced, the assembling efficiency can be improved, and the maintenance cost can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit technical field, specifically, a kind of axle box built-in type bogie gear box and bogie system. BACKGROUND

[0002] Rail transit vehicle bogie system usually contains gear box, motor and other components, gear box adopts frame suspension type installation, one end is installed on axle through axle gear and axle bearing, one end is connected with bogie frame through hanger rod. To prevent the risk of gear box falling into track due to the fracture of hanger rod during vehicle operation, anti-falling device needs to be arranged on gear box shell, and corresponding stop structure is arranged on bogie frame. At present, there are three common structures for anti-falling device, one is that rod-shaped support is arranged on gear box shell, and limiting mechanism is arranged on bogie frame;The second is that upper and lower limiting mechanisms are arranged on gear box shell, and rod-shaped support is arranged on bogie frame;The third is that limiting hole is arranged on gear box shell, and cylindrical pin is arranged on bogie frame. In addition, some manufacturers design axle box built-in type bogie, that is, axle box, bearing and primary suspension are installed inside wheelset, by reducing the lateral span of primary suspension, the lateral dimensions of frame and axle are reduced, thereby reducing the overall mass of bogie. Since the space arrangement of the bogie with the structure is more compact, the safety stop and the hanger rod mounting seat are integrated into a whole structure when the bogie is designed by vehicle factory.

[0003] The inventor found in the research that the axle box built-in type bogie gear box of the prior art at least has the following disadvantages:

[0004] The safety stop and the gear box shell are arranged in an integrated structure, and when the bogie is installed by using the hanger rod, the safety stop is easy to interfere with the bogie, which hinders the assembly of the bogie, and the assembly is difficult and low in efficiency. UTILITY MODEL CONTENTS

[0005] The purpose of the utility model includes, for example, providing an axle box built-in type bogie gear box and bogie system, which can reduce assembly difficulty, improve assembly efficiency, and reduce maintenance cost.

[0006] Embodiments of the utility model can be implemented as follows:

[0007] In a first aspect, the utility model provides an axle box built-in type bogie gear box for connecting with a bogie body, comprising a gear box shell, a safety stop and a hanger rod assembly, wherein:

[0008] An installation portion is arranged on the outer surface of the gear box shell, and the safety stop is detachably connected with the installation portion;One end of the hanger rod assembly is connected with the gear box shell, and the other end is used for connecting with the bogie body;

[0009] The safety stopper is used to contact the bogie body after the boom assembly is broken, so as to limit the gear box shell from falling.

[0010] In an optional embodiment, the axle box built-in bogie gear box further comprises a fastener, and the safety stopper is detachably connected with the mounting portion through the fastener.

[0011] In an optional embodiment, the mounting portion is provided with a first fixing hole, and the safety stopper is provided with a second fixing hole, the fastener is arranged in the second fixing hole and is screwed with the first fixing hole.

[0012] In an optional embodiment, the safety stopper comprises an integral rod body and a widened block, the width of the rod body is smaller than the width of the widened block, and the second fixing hole is arranged on the widened block; the rod body is used to contact the bogie body after the boom assembly is broken.

[0013] In an optional embodiment, the mounting portion is provided with a first plane, and the widened block is provided with a second plane, and the first plane is attached to the second plane.

[0014] In an optional embodiment, the number of the second fixing holes is multiple, and the multiple second fixing holes are arranged in a ring shape.

[0015] In an optional embodiment, the mounting portion is provided with a positioning clamping groove, and the safety stopper is clamped in the positioning clamping groove.

[0016] In an optional embodiment, the boom assembly comprises a rod body, a first mounting shaft and a second mounting shaft, the first mounting shaft is rotatably mounted on the rod body around a first axis, and the second mounting shaft is rotatably mounted on the rod body around a second axis; the first axis and the second axis have an included angle; the first mounting shaft is connected with the gear box shell, and the second mounting shaft is used to be connected with the bogie body.

[0017] In an optional embodiment, the first mounting shaft is arranged in parallel with an input shaft mounted on the gear box shell, and the second mounting shaft is arranged in perpendicular to the input shaft mounted on the gear box shell.

[0018] In a second aspect, the utility model provides a bogie system, the bogie system comprises:

[0019] The axle box built-in bogie gear box of any one of the foregoing embodiments.

[0020] The beneficial effects of the embodiments of the utility model include, for example:

[0021] In summary, the axle box built-in type gear box for bogie provided by the embodiment has the following advantages: the safety stopper and the gear box shell are designed to be detachably connected, when the bogie body is installed on the hanger, the safety stopper can be detached from the gear box shell first, the safety stopper is separated from the gear box shell, and the safety stopper does not block the installation path of the bogie body, so that the bogie body is easier to install, and the operation is more flexible and convenient, and the installation efficiency is greatly improved. When the bogie body and the hanger are installed, the safety stopper is installed and fixed with the installation part on the gear box shell, the safety stopper can cooperate with the bogie body, and the safety protection effect is achieved. At the same time, the safety stopper can be detached from the gear box shell, so that the safety stopper is convenient to replace, and the maintenance cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiment, it should be understood, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0023] Figure 1 It is a first perspective view of the axle box built-in type gear box for bogie of the embodiment of the application.

[0024] Figure 2 It is an exploded view of the axle box built-in type gear box for bogie of the embodiment of the application.

[0025] Figure 3 It is a second perspective view of the axle box built-in type gear box for bogie of the embodiment of the application.

[0026] Figure 4 It is an application schematic diagram of the axle box built-in type gear box for bogie of the embodiment of the application.

[0027] Icon:

[0028] 001-bogie body; 100-gear box shell; 101-upper box body; 102-lower box body; 103-oil injection hole; 104-oil mark observation hole; 105-oil discharge hole; 110-installation part; 120-first fixing hole; 200-safety stopper; 210-rod body; 220-widened block; 300-hanger assembly; 310-rod body; 320-first installation shaft; 330-second installation shaft; 400-fastener. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0031] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the utility model, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product is used, only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0033] In addition, if the terms "first", "second" and the like appear, they are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0034] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0035] In the prior art, the safety stop structure is provided in an integral structure with the gear box shell 100, the safety stop structure cannot be detached from the gear box shell 100, in the process of installing the bogie frame, the safety stop structure is located on the moving path of the bogie frame, the safety stop structure has the risk of colliding with the bogie frame, increases the installation difficulty, and reduces the installation efficiency. And the safety stop structure cannot be replaced independently, increasing the maintenance cost.

[0036] Therefore, the designer provides a shaft box built-in type gear box for bogie, which can reduce the installation difficulty of the bogie, thereby improving the installation efficiency; also can replace the safety stop piece 200 independently, thereby reducing the maintenance cost.

[0037] Please refer to Figures 1-3 The embodiment provides a built-in axle box bogie gear box, which is used in connection with a bogie body 001 and comprises a gear box shell 100, a safety stop piece 200 and a boom assembly 300. Wherein: the outer surface of the gear box shell 100 is provided with a mounting portion 110, and the safety stop piece 200 is detachably connected with the mounting portion 110; one end of the boom assembly 300 is connected with the gear box shell 100, and the other end is used in connection with the bogie body 001; the safety stop piece 200 is used in contact with the bogie body 001 after the boom assembly 300 is broken, so as to limit the gear box shell 100 from falling.

[0038] As described above, the assembly mode of the built-in axle box bogie gear box provided by the embodiment is as follows:

[0039] Please combine Figure 4 First, the boom assembly 300 is installed on the gear box shell 100, then the corresponding position of the bogie body 001 is installed on the boom assembly 300, and finally the safety stop piece 200 is fixedly connected with the gear box shell 100. In this way, when the bogie body 001 is installed on the boom assembly 300 of the gear box shell 100, the safety stop piece 200 can be first detached from the gear box shell 100, the safety stop piece 200 is separated from the gear box shell 100, the safety stop piece 200 does not block the installation path of the bogie body 001, the bogie body 001 is more difficult to install, and the operation is more flexible and convenient, thereby greatly improving the installation efficiency. When the bogie body 001 and the boom assembly 300 are installed, the safety stop piece 200 is installed and fixed with the mounting portion 110 on the gear box shell 100, the safety stop piece 200 can cooperate with the bogie body 001 to play a safety protection role. At the same time, since the safety stop piece 200 can be detached from the gear box shell 100, it is convenient to replace, and the maintenance cost is low.

[0040] The following embodiments illustrate the details of the built-in axle box bogie gear box of the application in an exemplary manner.

[0041] Please combine Figures 1-3 In the embodiment, optionally, the built-in axle box bogie gear box comprises a gear box shell 100, a safety stop piece 200, a boom assembly 300 and a fastener 400. Wherein, the boom assembly 300 is installed on the gear box shell 100, and the safety stop piece 200 can be detachably connected with the gear box shell 100 through the fastener 400. In this way, when the boom assembly 300 is connected with the bogie body 001, the safety stop piece 200 can be first detached from the gear box shell 100, the safety stop piece 200 does not hinder the bogie body 001, the bogie body 001 is more convenient to install, and the installation efficiency is higher.

[0042] Optionally, the gear box shell 100 can be provided as a split structure, the gear box shell 100 comprises a connected upper box 101 and lower box 102, the upper box 101 and the lower box 102 can be fixedly connected by bolts and the like. The gear box shell 100 is a split structure, which is convenient for processing and manufacturing, and is convenient for assembling the transmission components in the gear box shell 100.

[0043] Please combine Figure 2 At the same time, the top surface of the upper box 101 is provided with a mounting portion 110, the mounting portion 110 can be provided with a protrusion protruding from the surface of the upper box 101, the top of the protrusion is provided as a first plane, and a positioning clamping groove can be provided on the first plane, which can be a dovetail groove or a T-shaped groove. A first fixing hole 120 is provided on the first plane, which can be a threaded hole, and the number of first fixing holes 120 can be multiple, and multiple first fixing holes 120 can be arranged in a ring shape. For example, in the embodiment, the number of first fixing holes 120 is three.

[0044] And the lower box 102 is provided with an oil filling hole 103, an oil level observation hole 104 and a drain hole 105 and the like.

[0045] Please combine Figure 2 In the embodiment, optionally, the safety stop piece 200 comprises an integral rod body 210 and a widened block 220, the width of the rod body 210 is less than the width of the widened block 220. The widened block 220 is provided with a second fixing hole, which can be a circular hole, and the number of second fixing holes can be multiple, for example, in the embodiment, the number of second fixing holes is three, and the three second fixing holes and the three first fixing holes 120 are respectively one-to-one corresponding and matched. At the same time, one side of the widened block 220 is provided with a second plane, which can be attached to the first plane.

[0046] Optionally, the fastener 400 is provided as a bolt, and the number of fasteners 400 is selected as needed, for example, in the embodiment, the number of fasteners 400 is three, each fastener 400 is arranged in the corresponding second fixing hole, and is screwed and matched with the corresponding first fixing hole 120. The safety stop piece 200 and the gear box shell 100 are fixed by bolts, and the fixing method is simple and reliable. And because the width of the widened block 220 is large, the contact area of the first plane and the second plane is large, and the widened block 220 is stably and reliably matched with the gear box shell 100. When the widened block 220 is matched with the mounting portion 110, the widened block 220 can be clamped in the positioning clamping groove first to realize preliminary positioning, which is convenient for determining the position of the widened block 220 and improving the installation efficiency of the widened block 220.

[0047] It should be understood that in other embodiments, the safety stopper 200 can also be detachably connected with the gear box shell 100 in other ways such as buckling.

[0048] In addition, when the safety stopper 200 and the gear box shell 100 are connected by the fasteners 400, the number of the fasteners 400 is not limited to three.

[0049] Please refer to Figure 3 In the embodiment, optionally, the boom assembly 300 includes a rod body 310, a first mounting shaft 320 and a second mounting shaft 330. The first mounting shaft 320 is rotatably mounted on the rod body 310 about a first axis, and the second mounting shaft 330 is rotatably mounted on the rod body 310 about a second axis. The first axis and the second axis have an included angle, for example, in the embodiment, the first axis and the second axis are perpendicular to each other, that is, the included angle between the two axes is 90°. In assembly, the first mounting shaft 320 is fixedly connected with the gear box shell 100 by bolts or other structural members, and the second mounting shaft 330 is used to be fixedly connected with the bogie body 001 by bolts or other structural members. After assembly, the first mounting shaft 320 is located below the second mounting shaft 330, and the axis of the first mounting shaft 320 is substantially parallel to the input shaft mounted on the gear box shell 100. Correspondingly, the axis of the second mounting shaft 330 is substantially perpendicular to the input shaft mounted on the gear box shell 100.

[0050] Due to the perpendicular arrangement of the first mounting shaft 320 and the second mounting shaft 330, the installation and fixation of the built-in bogie body 001 can be adapted, and the installation efficiency is improved.

[0051] The gear box for the bogie with built-in axle box provided in the embodiment is of a split structure in which the safety stopper 200 and the gear box shell 100 are provided. When the bogie body 001 is installed, the safety stopper 200 can be first detached, and the safety stopper 200 will not block the installation path of the bogie body 001, thereby reducing the installation difficulty of the bogie body 001 and improving the installation efficiency. When the bogie body 001 and the boom are installed, the safety stopper 200 and the mounting portion 110 on the gear box shell 100 are fixedly installed. The rod body 210 of the safety stopper 200 can cooperate with the bogie body 001, and when the boom assembly 300 is broken, the safety stopper 200 can prevent the gear box from falling as a whole. At the same time, since the safety stopper 200 can be detached from the gear box shell 100, it is convenient to replace, and the maintenance cost is low.

[0052] The embodiment further provides a bogie system including the gear box for the bogie with built-in axle box in the above embodiment, which has at least the advantages of convenient assembly and high assembly efficiency.

[0053] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A gear box for a bogie with an inner axle box, for connection with a bogie body (001), characterized in that, The gear box shell (100), the safety stop piece (200) and the boom assembly (300) are included, wherein: The outer surface of the gear box shell (100) is provided with a mounting portion (110), the safety stop piece (200) is detachably connected with the mounting portion (110); one end of the boom assembly (300) is connected with the gear box shell (100), and the other end is used for being connected with the bogie body (001); The safety stop piece (200) is used for contacting the bogie body (001) after the boom assembly (300) is broken, so as to limit the gear box shell (100) from falling.

2. The axle box built-in bogie gear box according to claim 1, wherein: The axle box built-in bogie gear box further comprises a fastener (400), and the safety stop piece (200) is detachably connected with the mounting portion (110) through the fastener (400).

3. The axle box built-in bogie gear box according to claim 2, wherein: The mounting portion (110) is provided with a first fixing hole (120); the safety stop piece (200) is provided with a second fixing hole, and the fastener (400) is arranged in the second fixing hole and is screwed with the first fixing hole (120).

4. The axle box built-in bogie gear box according to claim 3, wherein: The safety stop piece (200) comprises an integral rod body (210) and a widened block (220), the width of the rod body (210) is smaller than the width of the widened block (220), and the second fixing hole is arranged on the widened block (220); the rod body (210) is used for contacting the bogie body (001) after the boom assembly (300) is broken.

5. The axle box built-in bogie gear box according to claim 4, wherein: The mounting portion (110) is provided with a first plane, the widened block (220) is provided with a second plane, and the first plane is attached to the second plane.

6. The axle box built-in bogie gear box according to any one of claims 3-5, wherein: The number of the second fixing holes is multiple, and the multiple second fixing holes are arranged in a ring shape.

7. The axle box built-in bogie gear box according to any one of claims 1-5, wherein: The mounting portion (110) is provided with a positioning clamping groove, and the safety stop piece (200) is clamped in the positioning clamping groove.

8. The axle box built-in bogie gear box according to any one of claims 1-5, wherein: The boom assembly (300) comprises a boom body (310), a first mounting shaft (320) rotatably mounted to the boom body (310) about a first axis, and a second mounting shaft (330) rotatably mounted to the boom body (310) about a second axis, the first axis and the second axis having an included angle, the first mounting shaft (320) being connected to the gear box housing (100), and the second mounting shaft (330) being configured to be connected to the bogie body (001).

9. The axle-box-embedded bogie-mounted gear box according to claim 8, characterized in that: the first mounting shaft (320) is arranged in parallel with an input shaft mounted on the gear box housing (100), and the second mounting shaft (330) is arranged perpendicularly to the input shaft mounted on the gear box housing (100).

10. A bogie system characterized by, The bogie system comprises: The axle-box-embedded bogie-mounted gear box according to any one of claims 1-9.

Images