CN113459931A - Method for fixing axle box body during transportation of bogie - Google Patents

Abstract

The invention provides a method for fixing an axle box body during transportation of a bogie, which is characterized by comprising a fixing frame for fixing the axle box body; after the hanging ring on the shaft box body is removed, the fixing frame is detachably arranged at the installation position of the hanging ring; the lifting hook of the framework installation of bogie passes fixed frame, fixed frame through four fastening bolt of group and lock nut's combination with lifting hook fixed connection, four groups fastening bolt with lock nut's combination is fixed from four directions on the upper and lower, left and right respectively fixed frame with the lifting hook, fastening bolt with in close contact with between the lifting hook. The technical scheme of the invention solves the problem of card collision abrasion caused by up-and-down bumping and left-and-right swinging of the urban rail vehicle in long-distance transportation, and realizes the safe and reliable working target of the urban rail vehicle in long-distance transportation.

Description

Method for fixing axle box body during transportation of bogie

Technical Field

The invention relates to the field of urban rail vehicles, in particular to a method for fixing a shaft box body during transportation of a bogie.

Background

At present, in the long-distance highway transportation of the whole urban rail vehicle, the phenomena of collision, clamping and damage of the bogie of the urban rail vehicle can often occur due to the fact that the road is far and the jolt is frequent. This is due to the fact that the bogie frame is resiliently connected to the wheelset axle housing by a spring. Because the connection mode belongs to a soft connection mode, if practical and effective fixing measures are not taken in the soft connection link, the collision and clamping damage between a bogie frame and a wheel set axle box body can happen in the long-distance transportation of the whole urban rail vehicle, so that the urban rail vehicle product causes great quality problems and economic losses.

At present, the following technical scheme is basically adopted for fixing the middle axle box body of the integral urban rail vehicle in long-distance transportation:

binding and fixing method: the base under the primary spring of the axle box body is bound and fixed with the framework above the spring by a steel wire rope, and a proper cushion block is used for supporting between the bottom surface of the framework and the spring base surface of the axle box body so as to bind and fix the framework and the spring base of the axle box body and promote the primary spring not to move. By adopting the binding and fixing measures, only the freedom degree of the elastic soft connection in the up-and-down direction is limited, but the freedom degree of the elastic soft connection in the left-and-right direction is not limited at all.

Welding and fixing method: the flexible soft connection between the frame and the wheel set axle box body is limited by welding a fixed sizing block, namely a fixed sizing block is welded at a proper position between the bottom surface of the frame and the axle box body, so that the moving range of a series of springs is limited. The welding destroys the paint quality on the surface of the bottom surface of the framework and the original product of the axle box body, and the mode also limits the freedom degree of the elastic soft connection in the vertical direction, and the freedom degree in the left and right directions is not limited effectively.

Therefore, the technical scheme of the existing fixing measures has high working strength and influences the surface quality of the urban rail vehicle product, and more importantly, the existing technical scheme does not fundamentally limit the degree of freedom in the up-down and left-right directions of the elastic soft connection, and unsafe and unreliable dangerous factors in the long-distance transportation of the whole urban rail vehicle still exist.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides a method for fixing the axle box body during the transportation of the bogie, and the technical scheme provided by the invention can reliably limit the free degree of serial motion of the elastic soft connection of the bogie in the upper and lower directions and the left and right directions, so that the elastic soft connection between the bogie frame and the axle box body is changed into rigid hard connection; meanwhile, the method aims to realize and solve the safety and stability problems of the whole urban rail vehicle long-distance highway transportation by the simplest, most convenient and most direct installation and operation method; the scheme of the fixed shaft box body is reasonable, the design is optimized, the structure is novel, the cost is low, the operation is convenient, and the fixed shaft box body is safe and practical.

The technical means adopted by the invention are as follows:

a method for fixing a shaft box body during transportation of a bogie comprises a fixing frame for fixing the shaft box body; after the hanging ring on the shaft box body is removed, the fixing frame is detachably arranged at the installation position of the hanging ring;

the lifting hook of the framework installation of bogie passes fixed frame, fixed frame through four fastening bolt of group and lock nut's combination with lifting hook fixed connection, four groups fastening bolt with lock nut's combination is fixed from four directions on the upper and lower, left and right respectively fixed frame with the lifting hook, fastening bolt with in close contact with between the lifting hook.

Further, each axle box body of the bogie is provided with a corresponding fixing frame.

Further, the tightening bolts located below the hooks limit the amount of downward movement of the frame when the springs of the truck are compressed; the tightening bolts above the hooks limit the amount of upward movement of the frame when the series of springs is extended; the fastening bolt on the left side of the hook limits the amount of forward motion of the frame when the frame is tilted forward; the fastening bolt located to the right of the hook limits the amount of rearward motion of the frame when the frame is leaning rearward; the locking nut is used for locking the fastening bolt to prevent the fastening bolt from loosening during transportation.

Further, the method specifically comprises the following steps:

(1) removing the original hanging ring on the axle box body;

(2) installing the fixing frame on the shaft box body through a bolt;

(3) enabling the lifting hook to penetrate through the fixed frame, and screwing the fastening bolt with the locking nut from the upper direction, the lower direction, the left direction and the right direction of the fixed frame, so that the fastening bolt is tightly contacted with the lifting hook without a gap, and a series of springs of the bogie are kept fixed;

(4) and locking the locking nut on each fastening bolt to fixedly connect the fixing frame with the lifting hook.

Compared with the prior art, the invention has the following advantages:

1. the method for fixing the axle box body during the transportation of the bogie determines safe and effective fixing measures and operation methods of the axle box body of the bogie during the long-distance transportation of vehicles, reliably and stably limits the degree of freedom of the elastic soft connection of the bogie in the upper direction, the lower direction, the left direction and the right direction, and forces the elastic soft connection between a bogie frame and the axle box body of a wheel pair to be changed into rigid hard connection.

2. The method for fixing the axle box body during the transportation of the bogie solves the problem of card collision and abrasion caused by up-and-down bumping and left-and-right swinging of the urban rail vehicle during the long-distance transportation, and realizes the safe and reliable working target of the urban rail vehicle during the long-distance transportation.

3. The method for fixing the axle box body during the transportation of the bogie changes the existing form of the long-distance transportation of the urban rail vehicle, safely and stably limits the impact force in each direction generated during the transportation, and widens and improves the transportation range of the locomotive urban rail vehicle.

Based on the reasons, the invention can be widely popularized in the field of urban rail vehicles.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a connection structure of the framework and the axle box body.

Fig. 2 is a schematic view of the connection structure of the fixing frame and the shaft box body and the lifting hook.

In the figure: 1. a shaft box body; 2. a hook; 3. a hoisting ring; 4. a frame; 5. a wheel; 6. a tie spring; 7. fastening a bolt; 8. locking the nut; 9. the original bolt; 10. a fixing frame is provided.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

Example 1

As shown in fig. 1-2, the present invention provides a method for fixing a axle housing in transportation of a bogie, comprising a fixing frame 10 for fixing the axle housing; after the hanging ring 3 on the axle box body 1 is dismantled, the fixing frame 10 is detachably mounted at the mounting position of the hanging ring 3;

lifting hook 2 of installation passes on the framework 4 of bogie fixed frame 10, fixed frame 10 through four groups of fastening bolt 7 and lock nut 8's combination with 2 fixed connection of lifting hook, four groups fastening bolt 7 with four directions in the upper and lower, left and right are fixed respectively to lock nut 8's combination fixed frame 10 with lifting hook 2, fastening bolt 7 with in close contact with between the lifting hook 2.

Because the lifting hook 2 is welded on the side beam of the framework 4, the hanging ring 3 is fixed on the end cover of the axle box body 1 by bolts, the framework 4 is connected with the axle box body 1 by a series of springs 6, namely the bogie framework 4 is connected with the axle box body 1 by the elastic soft connection mode, the distance between the lifting hook 2 and the hanging ring 3 determines the up-and-down movement and the left-and-right swinging amount of the elastic soft connection, and if the distance between the lifting hook 2 and the hanging ring 3 is changed, the range of the direction mobility of the elastic soft connection can be changed and limited.

The invention provides a method for fixing a shaft box body of a bogie specially used for long-distance transportation of urban rail vehicles, which replaces the function of an original hanging ring 3 with a fixed frame 10, installs the fixed frame 10 on the original position of the hanging ring 3, and limits the moving amount of a series of springs in all directions by using a method of limiting the distance between a hanging hook 2 and the fixed frame 10. The distances between the lifting hook 2 and the fixed frame 10 in four directions are adjusted to be zero by adjusting the fastening bolts 7 on the four sides of the fixed frame 10, so that the free moving range of the elastic soft connection in the upper, lower, left and right directions can be completely limited, and the elastic soft connection between the bogie frame and the axle box body is forced to be changed into rigid hard connection. This completely eliminates the adverse effects of pitch and roll on bogie mass during long haul transportation of urban rail vehicles.

Further, each axle box 1 of the bogie is provided with a corresponding fixing frame 10.

Further, the tightening screw 7 located below the hook 2 limits the amount of downward movement of the frame 4 when the truck's spring array 6 is compressed; the tightening bolt 7 above the hook 2 limits the amount of upward movement of the frame 4 when the spring array 6 is extended; the fastening bolt 7 located on the left side of the hook 2 limits the amount of forward movement of the frame 4 when the frame 4 is tilted forward; the fastening bolt 7 located on the right of the hook 2 limits the amount of rearward movement of the frame 4 when the frame 4 is tilted rearward; the locking nuts 8 are used for respectively locking the positions of the fastening bolts 7 in four directions, and the fastening bolts 7 are prevented from loosening during transportation.

Further, the method specifically comprises the following steps:

(1) the original hanging ring 3 on the axle box body 1 is dismantled and properly kept, so that the hanging ring can be reinstalled to an original position after the urban rail vehicle is transported to a destination;

(2) the fixing frame 10 is installed on the shaft box body 1 through a bolt 9; if the length of the original bolt 9 is not matched with that of the bolt used by the fixing frame 10, the bolt needs to be replaced by a new bolt with the required length (whether the original bolt can be reused depends on whether the thickness of the plate of the fixing frame 10 is the same as that of the plate of the lifting ring 3);

(3) the hook 2 penetrates through the fixed frame 10, the fastening bolt 7 with the locking nut 8 is screwed in four directions of the upper direction, the lower direction, the left direction and the right direction of the fixed frame, so that the fastening bolt 7 is tightly contacted with the end surface of the hook 2 without a gap, a series of springs 6 of the bogie are kept fixed, the elastic soft connection between the framework 4 and the axle box body 1 is forced to be changed into rigid hard connection, no relative movement exists between the framework 4 and the axle box body 1, the conditions of mutual clamping and damage in long-distance transportation bump are avoided, and the aim of safely and reliably transporting the urban rail vehicle in long distance is fulfilled;

(4) and locking the locking nut 8 on each fastening bolt 7 to prevent the bolt from loosening and falling off in long-distance transportation, and simultaneously fixedly connecting the fixing frame 10 with the lifting hook 2.

Furthermore, the four fastening bolts 7 on the fixing frame 10, after the city scale vehicle is assembled, must be screwed tightly against the corresponding contact surface on the hook 2 in each direction, so as to ensure that the soft connection of the series of springs 6 cannot generate any free movement in all directions, i.e. the elastic soft connection between the frame and the wheelset axle box is changed into rigid hard connection.

The invention provides a method for fixing a shaft box body during transportation of a bogie, which fully utilizes the positions and the functions of a lifting hook and a lifting ring of an original part of the bogie, replaces the original lifting ring with a fixed frame, installs the fixed frame on the position of the lifting ring of the original part, and limits the movement amount of a primary spring in each direction by utilizing the fixed frame and four fastening bolts, namely the upper fastening bolt, the lower fastening bolt, the left fastening bolt, the right fastening bolt and the left fastening bolt, so that the primary spring is in a relatively fixed position, and the elastic soft connection between a bogie framework and the wheel set shaft box body is forced to be changed into rigid hard connection; the flexible connection between the framework and the axle box body of the wheel pair is changed into rigid hard connection, so that the free mobility of the flexible connection of the bogie in the space range is reliably and stably limited, and the axle box body of the bogie is safely and effectively fixed during long-distance transportation of vehicles.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (4)

1. A method for fixing an axle box body during transportation of a bogie is characterized by comprising a fixing frame for fixing the axle box body; after the hanging ring on the shaft box body is removed, the fixing frame is detachably arranged at the installation position of the hanging ring;

the lifting hook of the framework installation of bogie passes fixed frame, fixed frame through four fastening bolt of group and lock nut's combination with lifting hook fixed connection, four groups fastening bolt with lock nut's combination is fixed from four directions on the upper and lower, left and right respectively fixed frame with the lifting hook, fastening bolt with in close contact with between the lifting hook.

2. The method of securing axle boxes during transport of a truck according to claim 1, wherein each of said axle boxes of said truck is provided with a respective securing frame.

3. The method of securing an axle housing during transport of a truck according to claim 1 wherein the tightening bolts located below the hook limit the amount of downward travel of the frame when the springs of the truck are compressed; the tightening bolts above the hooks limit the amount of upward movement of the frame when the series of springs is extended; the fastening bolt on the left side of the hook limits the amount of forward motion of the frame when the frame is tilted forward; the fastening bolt located to the right of the hook limits the amount of rearward motion of the frame when the frame is leaning rearward; the locking nut is used for locking the fastening bolt to prevent the fastening bolt from loosening during transportation.

4. The method for fixing the axle box body during the transportation of the bogie as recited in claim 1, is characterized by comprising the following steps:

(1) removing the original hanging ring on the axle box body;

(2) installing the fixing frame on the shaft box body through a bolt;

(3) enabling the lifting hook to penetrate through the fixed frame, and screwing the fastening bolt with the locking nut from the upper direction, the lower direction, the left direction and the right direction of the fixed frame, so that the fastening bolt is tightly contacted with the lifting hook without a gap, and a series of springs of the bogie are kept fixed;

(4) and locking the locking nut on each fastening bolt to fixedly connect the fixing frame with the lifting hook.

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