CN114593165A - Prevent virtual brake shoe structure of wearing - Google Patents
Prevent virtual brake shoe structure of wearing Download PDFInfo
- Publication number
- CN114593165A CN114593165A CN202210124730.7A CN202210124730A CN114593165A CN 114593165 A CN114593165 A CN 114593165A CN 202210124730 A CN202210124730 A CN 202210124730A CN 114593165 A CN114593165 A CN 114593165A
- Authority
- CN
- China
- Prior art keywords
- virtual
- brake shoe
- lining plate
- tile
- elastic deformation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/06—Bands, shoes or pads; Pivots or supporting members therefor for externally-engaging brakes
- F16D65/062—Bands, shoes or pads; Pivots or supporting members therefor for externally-engaging brakes engaging the tread of a railway wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D69/0416—Attachment of linings specially adapted for curved linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D2069/0425—Attachment methods or devices
- F16D2069/045—Bonding
- F16D2069/0458—Bonding metallurgic, e.g. welding, brazing, sintering
Abstract
The invention discloses a virtual wearing prevention brake shoe structure which comprises a shoe back and a friction body arranged on the shoe back, wherein a raised shoe nose is formed on the shoe back, a virtual wearing prevention lining plate is arranged below the shoe nose of the shoe back, the virtual wearing prevention lining plate is connected with the friction body, and the virtual wearing prevention lining plate is matched with the shoe nose of the shoe back to form a closed structure. According to the invention, the anti-virtual penetration lining plate is arranged on the existing brake shoe back structure, so that the rigidity of the back can be greatly improved, the deformation of the brake shoe in transportation is reduced, and the problem of virtual penetration of a brake shoe bolt is solved.
Description
Technical Field
The invention belongs to the technical field of railway vehicle braking, and particularly relates to a virtual penetration prevention brake shoe structure in a vehicle braking system.
Background
When the railway vehicle is braked, the brake part which directly rubs the wheels to stop the vehicle is the brake shoe. Brake shoes are a consumable part in railway vehicles and are typically worn to the limit for several months and need to be replaced.
During replacement and assembly of the brake shoe, the brake shoe bolt directly penetrates through a gap between the tile nose and the tile support without passing through a mounting hole on the tile nose, namely the brake shoe is penetrated in a virtual mode. The brake shoe is worn in a virtual mode, so that no connection exists between the brake shoe and the brake head, the brake shoe falls off in operation, the brake head directly contacts with a wheel during braking, the friction coefficient does not meet the requirement, and the safe operation of a vehicle is affected.
The main reasons for causing the false penetration of the brake shoe are: the brake shoe has the brake shoe tile back of the body to warp in the transportation, or the random throw of brake shoe when installing, and the collision of brake shoe and ground leads to brake shoe circular arc radius grow, the interval grow between tile nose and the tile back of the body for the bolt passes from the interval between tile nose and the tile support.
Disclosure of Invention
The invention aims to: aiming at the problems existing in the prior art, the anti-virtual brake shoe structure capable of improving the rigidity of the brake shoe back and reducing the deformation of the brake shoe is provided.
The invention is realized by the following technical scheme: the utility model provides a prevent fictitious brake shoe structure of wearing, includes the tile back and sets up the friction body on the tile back, the tile back is formed with bellied tile nose, its characterized in that: the anti-virtual wearing lining plate is arranged under the tile nose of the tile back and connected with the friction body, and the anti-virtual wearing lining plate is matched with the tile nose of the tile back to form a closed structure.
According to the virtual wearing prevention brake shoe structure, the elastic deformation part is arranged in the middle of the virtual wearing prevention lining plate and is used for reserving a certain deformation space for a shoe back so as to adapt to the change of the wheel diameter of a railway vehicle wheel.
According to the virtual wearing prevention brake shoe structure, the elastic deformation part in the middle of the virtual wearing prevention lining plate is of a convex or concave structure.
According to the virtual wearing prevention brake shoe structure, the notch is arranged at the position corresponding to the elastic deformation part in the middle of the virtual wearing prevention lining plate, and the length of the elastic deformation part is changed through the design of the length of the notch, so that the elasticity of the virtual wearing prevention lining plate is controlled.
The virtual penetration preventing brake shoe structure comprises a virtual penetration preventing lining plate, a brake shoe body and a brake shoe body, wherein the brake shoe body is provided with a brake shoe back, the brake shoe body is provided with a brake shoe body, and the brake shoe body is provided with a brake shoe back.
According to the anti-virtual penetration brake shoe structure, the end part of the friction body extends to the lower part of the shoe nose of the shoe back, and the horizontal supporting section of the anti-virtual penetration lining plate is supported on the extending section of the end part of the friction body.
According to the anti-virtual wearing brake shoe structure, the elastic deformation part in the middle of the anti-virtual wearing lining plate is arranged between the end extending sections of the friction body.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the anti-virtual penetration lining plate is arranged on the existing brake shoe back structure, so that the rigidity of the back can be greatly improved, the deformation of the brake shoe in transportation is reduced, and the problem of virtual penetration of a brake shoe bolt is solved.
2. The elastic deformation part is arranged in the middle of the anti-virtual wearing lining plate, so that a certain elastic deformation space can be reserved for the tile back, and the elasticity of the anti-virtual wearing lining plate can be controlled by adjusting the length of the elastic structure so as to adapt to the change of the wheel diameter of the railway vehicle.
3. Compared with the existing brake shoe, the brake shoe structure of the invention has the advantages that the increase of the anti-virtual penetration lining plate increases the volume of the friction body to be larger than that of the common brake shoe, the contact area with the wheel is larger, the heat dissipation area of the brake shoe is larger, the temperature rise of the brake shoe is slowed down when the brake shoe is braked, the temperature of the brake shoe is lower under the same working condition, the stability of the friction coefficient of the brake shoe is facilitated, the heat fade is reduced, and the service life of the brake shoe is prolonged.
4. The false-penetration-preventing brake shoe has a relatively simple structure, and has small influence on the manufacturing process of the existing brake shoe.
Drawings
FIG. 1 is a schematic view of a conventional brake shoe construction.
Fig. 2 is a schematic structural view of embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of the virtual penetration preventing lining plate in fig. 2.
Fig. 4 is a cross-sectional view of the virtual penetration resistant patch of fig. 3.
Fig. 5 is a schematic structural view of embodiment 2 of the present invention.
Fig. 6 is a schematic structural view of the virtual penetration preventing lining plate in fig. 5.
Fig. 7 is a cross-sectional view of the virtual penetration resistant patch of fig. 6.
In the figure: 1 is the friction body, 2 is the tile back, 3 is the tile nose, 4 is for preventing the virtual lining board of wearing, 5 is tile nose mounting hole, 11 is the extension section, 41 is elastic deformation portion, 42 is the breach, 43 is horizontal support section, 44 is the link of buckling.
Detailed Description
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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
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, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, or the orientation or the positional relationship which is usually understood by those skilled in the art, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that the terms "disposed" and "connected," unless otherwise explicitly specified or limited, are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in FIG. 1, the conventional brake shoe is illustrated, and it can be seen that the weak part of the brake shoe is at the shoe nose, the shoe nose is in an open state, and improper operation in transportation and field can cause deformation of the shoe back of the brake shoe, so that the rigidity of the shoe back at the shoe nose is improved, and the deformation of the brake shoe can be reduced.
Example 1:
as shown in fig. 2, the anti-virtual wearing brake shoe structure of the invention comprises a shoe back 2 and a friction body 1 arranged on the shoe back 2, wherein a convex shoe nose 3 is formed on the shoe back 2, a shoe nose mounting hole 5 is arranged on the shoe nose 3, an anti-virtual wearing lining plate 4 is arranged under the shoe nose 3 of the shoe back 2, the anti-virtual wearing lining plate 4 is connected with the friction body 1, and the anti-virtual wearing lining plate 4 is matched with the shoe nose 3 of the shoe back 2 to form a closed structure. Compared with the common brake shoe structure, the anti-virtual penetration lining plate is welded under the tile nose of the tile back of the common brake shoe, and the normal tile back and the anti-virtual penetration tile back are subjected to simulation analysis by applying positive pressure above the tile nose of the common tile back and the anti-virtual penetration tile back respectively by using simulation software to calculate the displacement of the tile nose. The simulation analysis result shows that the displacement of the tile back tile nose for preventing the virtual penetration is obviously lower than that of the common tile back tile nose under the same load, so that the rigidity of the tile back for preventing the virtual penetration is obviously better than that of the common tile back, the problem of the virtual penetration of a brake shoe bolt caused by the deformation of the brake shoe caused by the transportation, the field replacement and the transportation of the brake shoe can be solved, and the abnormal falling of the brake shoe can be prevented.
The middle part of the anti-virtual penetration lining plate 4 is provided with an elastic deformation part 41, and the elastic deformation part 41 is used for reserving a certain deformation space for the tile back 2 while improving the rigidity of the tile back so as to adapt to the change of the wheel diameter of the railway vehicle. In this embodiment, the elastic deformation portion 41 in the middle of the virtual penetration preventing lining plate 4 is an upward convex arc structure to form a shape similar to an omega, and when braking, the brake shoe can better fit the tread of the wheel through the deformation of the convex omega under the action of braking force.
In order to increase the elasticity of the virtual wearing prevention lining plate, a notch 42 is arranged at the position corresponding to the elastic deformation part 41 in the middle of the virtual wearing prevention lining plate 4, and the length L of the elastic deformation part 41 is changed through the design of the length of the notch 42 so as to control the elasticity of the virtual wearing prevention lining plate 4 and better adapt to the field reality.
As shown in fig. 3 and 4, the virtual penetration preventing lining plate 4 is composed of an elastic deformation portion 41 in the middle, and horizontal support sections 43 and bending connection ends 44 symmetrically arranged at two sides of the elastic deformation portion 41, the bending connection ends 44 at two ends of the virtual penetration preventing lining plate 4 are fixed between the tile back 2 and the corresponding friction body 1, the end of the friction body 1 extends to the lower part of the tile nose 3 of the tile back 2, the horizontal support section 43 of the virtual penetration preventing lining plate 4 is supported on the extension section 11 at the end of the friction body 1, and the elastic deformation portion 41 in the middle of the virtual penetration preventing lining plate 4 is arranged between the extension sections 11 at the end of the friction body 1. Compared with the common brake shoe, the virtual penetration preventing brake shoe structure has the advantages that due to the increase of the virtual penetration preventing lining plate, the size of a friction body is larger than that of the common brake shoe, the contact area with a wheel is larger, the heat dissipation area of the brake shoe is larger, the temperature rise of the brake shoe is slower during brake of the brake shoe, the temperature of the brake shoe is lower under the same working condition, the stability of the friction coefficient of the brake shoe is facilitated, the heat fading is reduced, and the service life of the brake shoe is prolonged.
Example 2:
the structure of this embodiment is basically the same as that of embodiment 1, and the main difference is that: as shown in fig. 5, 6 and 7, the elastic deformation portion 41 of the middle portion of the virtual penetration preventing patch 4 has a concave arc structure.
The above description is intended to be illustrative of the present invention and should not be taken as limiting the invention, as the invention is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (7)
1. The utility model provides a prevent virtual brake shoe structure of wearing, includes tile back (2) and friction body (1) of setting on tile back (2), tile back (2) are formed with bellied tile nose (3), its characterized in that: the anti-virtual wear lining plate is characterized in that a virtual wear preventing lining plate (4) is arranged below a tile nose (3) of the tile back (2), the virtual wear preventing lining plate (4) is connected with a friction body (1), and the virtual wear preventing lining plate (4) is matched with the tile nose (3) of the tile back (2) to form a closed structure.
2. The virtually penetration resistant brake shoe structure of claim 1, wherein: an elastic deformation part (41) is arranged in the middle of the anti-virtual penetration lining plate (4), and the elastic deformation part (41) is used for reserving a certain deformation space for the tile back (2) so as to adapt to the change of the wheel diameter of the railway vehicle.
3. The virtual penetration preventing brake shoe structure according to claim 2, wherein: the elastic deformation part (41) in the middle of the anti-virtual wearing lining plate (4) is of a convex or concave structure.
4. The virtual penetration preventing brake shoe structure according to claim 3, wherein: a notch (42) is arranged at the position corresponding to the elastic deformation part (41) in the middle of the virtual wearing prevention lining plate (4), and the length of the elastic deformation part (41) is changed through the design of the length of the notch (42) so as to control the elasticity of the virtual wearing prevention lining plate (4).
5. The false penetration preventing brake shoe structure according to any one of claims 1 to 4, wherein: the virtual penetration preventing lining plate (4) is composed of an elastic deformation part (41) in the middle, horizontal supporting sections (43) and bending connecting ends (44) which are symmetrically arranged on two sides of the elastic deformation part (41), and the bending connecting ends (44) at two ends of the virtual penetration preventing lining plate (4) are fixed between the tile back (2) and the corresponding friction body (1).
6. The virtual penetration preventing brake shoe structure according to claim 5, wherein: the end part of the friction body (1) extends towards the lower part of the tile nose (3) of the tile back (2), and the horizontal supporting section (43) of the anti-virtual penetration lining plate (4) is supported on the extending section (11) at the end part of the friction body (1).
7. The virtual penetration preventing brake shoe structure according to claim 6, wherein: the elastic deformation part (41) in the middle of the anti-virtual wearing lining plate (4) is arranged between the end extension sections (11) of the friction body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124730.7A CN114593165B (en) | 2022-02-10 | 2022-02-10 | Prevent virtual brake shoe structure of wearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124730.7A CN114593165B (en) | 2022-02-10 | 2022-02-10 | Prevent virtual brake shoe structure of wearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114593165A true CN114593165A (en) | 2022-06-07 |
| CN114593165B CN114593165B (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210124730.7A Active CN114593165B (en) | 2022-02-10 | 2022-02-10 | Prevent virtual brake shoe structure of wearing |
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Citations (21)
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|---|---|---|---|---|
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| Publication number | Publication date |
|---|---|
| CN114593165B (en) | 2023-07-14 |
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