CN114593165B - Prevent virtual brake shoe structure of wearing - Google Patents
Prevent virtual brake shoe structure of wearing Download PDFInfo
- Publication number
- CN114593165B CN114593165B CN202210124730.7A CN202210124730A CN114593165B CN 114593165 B CN114593165 B CN 114593165B CN 202210124730 A CN202210124730 A CN 202210124730A CN 114593165 B CN114593165 B CN 114593165B
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- China
- Prior art keywords
- virtual
- lining plate
- brake shoe
- penetration
- tile
- 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.)
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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
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a virtual-penetration-preventing brake shoe structure which comprises a tile back and a friction body arranged on the tile back, wherein a raised tile nose is formed on the tile back, a virtual-penetration-preventing lining plate is arranged below the tile nose of the tile back, the virtual-penetration-preventing lining plate is connected with the friction body, and the virtual-penetration-preventing lining plate is matched with the tile nose of the tile back to form a closed structure. According to the invention, the anti-deficiency lining plate is arranged on the existing brake shoe backing structure, so that the rigidity of the backing can be greatly improved, and the deformation of a brake shoe in transportation can be reduced, thereby solving the problem of deficiency of a brake shoe bolt.
Description
Technical Field
The invention belongs to the technical field of railway vehicle braking, and particularly relates to a virtual-penetration-preventing brake shoe structure in a vehicle braking system.
Background
When the railway vehicle is in running braking, the braking part for stopping the vehicle by directly rubbing the wheels is a brake shoe. Brake shoes are a consumable part in railway vehicles and are typically worn out to a limit for several months and need to be replaced.
In the process of replacing and assembling the brake shoe, the phenomenon that the brake shoe bolt directly passes through the gap between the tile nose and the tile holder without passing through the mounting hole on the tile nose exists, namely the brake shoe is worn out in a broken way. The brake shoe is worn by mistake, so that no connection exists between the brake shoe and the brake head, and in operation, the brake shoe falls off, and the brake head is directly contacted with a wheel during braking, so that the friction coefficient is not satisfied, and the safe operation of a vehicle is influenced.
The main reasons for the brake shoe wear are: the brake shoe has the brake shoe tile back deformation in the transportation process, or the brake shoe is thrown at will when installing, and the collision of brake shoe and ground leads to the brake shoe circular arc radius grow, and the interval between tile nose and the tile back grow for the bolt passes from the interval between tile nose and the tile head.
Disclosure of Invention
The invention aims at: aiming at the problems, the anti-deficiency brake shoe structure capable of improving the rigidity of the backing of a brake shoe 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 virtual brake shoe structure that wears, 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 tile nose of tile back is provided with the lining board of preventing virtual wearing under, the lining board of preventing virtual wearing is connected with the friction body, the lining board of preventing virtual wearing forms enclosed construction with the tile nose cooperation of tile back.
The invention relates to a virtual-penetration-preventing brake shoe structure, which is characterized in that an elastic deformation part is arranged in the middle of a virtual-penetration-preventing lining plate, and the elastic deformation part is used for reserving a certain deformation space for a tile back so as to adapt to the change of wheel diameters of wheels of railway vehicles.
According to the virtual-penetration-preventing brake shoe structure, the elastic deformation part in the middle of the virtual-penetration-preventing lining plate is of an upward convex or downward concave structure.
According to the virtual-penetration-preventing brake shoe structure, the gap is formed in the corresponding position of the elastic deformation part in the middle of the virtual-penetration-preventing lining plate, and the length of the elastic deformation part is changed through the design of the gap length so as to control the elasticity of the virtual-penetration-preventing lining plate.
According to the virtual-penetration-preventing brake shoe structure, the virtual-penetration-preventing lining plate consists of the elastic deformation part in the middle, and the horizontal support sections and the bending connecting ends which are symmetrically arranged on two sides of the elastic deformation part, and the bending connecting ends at two ends of the virtual-penetration-preventing lining plate are fixed between the tile back and the corresponding friction body.
According to the virtual-penetration-preventing brake shoe structure, the end part of the friction body extends to the lower part of the tile nose of the tile back, and the horizontal support section of the virtual-penetration-preventing lining plate is supported on the extending section of the end part of the friction body.
According to the virtual-penetration-preventing brake shoe structure, the elastic deformation part in the middle of the virtual-penetration-preventing lining plate is arranged between the end extension sections of the friction body.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the anti-deficiency lining plate is arranged on the existing brake shoe backing structure, so that the rigidity of the backing can be greatly improved, and the deformation of a brake shoe in transportation can be reduced, thereby solving the problem of deficiency of a brake shoe bolt.
2. The elastic deformation part arranged in the middle of the anti-virtual-penetration lining plate can reserve a certain elastic deformation space for the tile back, and the elasticity of the anti-virtual-penetration 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 wheel.
3. Compared with the existing brake shoe, the brake shoe structure has the advantages that the friction body volume is larger than that of a common brake shoe due to the increase of the anti-deficiency lining plate, the contact area of the friction body and a wheel is larger, the heat dissipation area of the brake shoe is larger, the temperature rise of the brake shoe is slower during braking, 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.
4. The anti-deficiency 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 prior art 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 anti-fraying liner of fig. 2.
Fig. 4 is a cross-sectional view of the anti-fraying liner 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 liner of fig. 5.
Fig. 7 is a cross-sectional view of the anti-fraying liner of fig. 6.
In the figure: the friction body 1, the tile back 2, the tile nose 3, the virtual penetration preventing lining plate 4, the tile nose mounting hole 5, the extension section 11, the elastic deformation section 41, the notch 42, the horizontal support section 43 and the bending connection end 44.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the 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 invention, as 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 made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present invention, it should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in use of the product of the present invention as understood by those skilled in the art, merely for convenience of describing the present invention and simplifying the description, and is not indicative or implying that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as indicating or implying a relative importance.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in FIG. 1, the conventional ordinary brake shoe is a graph, and the weakness of the brake shoe is that the shoe nose is in an open state, and the deformation of the shoe backing of the brake shoe can be caused by improper transportation and on-site operation, so that the rigidity of the shoe nose of the shoe backing is improved, and the deformation of the brake shoe can be reduced.
Example 1:
as shown in fig. 2, the virtual wearing prevention brake shoe structure comprises a tile back 2 and a friction body 1 arranged on the tile back 2, wherein a raised tile nose 3 is formed on the tile back 2, a tile nose mounting hole 5 is formed on the tile nose 3, a virtual wearing prevention lining plate 4 is arranged below the tile nose 3 of the tile back 2, the virtual wearing prevention lining plate 4 is connected with the friction body 1, and the virtual wearing prevention lining plate 4 and the tile nose 3 of the tile back 2 are matched to form a closed structure. Compared with the common brake shoe structure, the invention has the advantages that the anti-virtual penetration lining plate is welded under the tile nose of the common brake shoe tile back, and the simulation analysis is carried out on the common tile back and the anti-virtual penetration tile back. Simulation analysis results show that the displacement of the tile nose of the virtual penetration-proof tile is obviously lower than that of the tile nose of the common tile back under the same load, so that the rigidity of the virtual penetration-proof tile back is obviously superior to 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 due to the transportation of the brake shoe and the on-site replacement and transportation can be solved, and the abnormal falling of the brake shoe is prevented.
The middle part of the virtual penetration preventing 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 so as to adapt to the change of the wheel diameter of the railway vehicle wheels while improving the rigidity of the tile back. In this embodiment, the elastic deformation portion 41 in the middle of the anti-virtual lining plate 4 is in an upward convex arc structure to form an omega-like shape, and when braking, the brake shoe better fits the tread of the wheel through the deformation of the convex omega-like shape under the action of braking force.
In order to increase the elasticity of the anti-virtual-penetration lining plate, a notch 42 is arranged at the corresponding position of the elastic deformation part 41 in the middle of the anti-virtual-penetration 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 anti-virtual-penetration lining plate 4, so that the anti-virtual-penetration lining plate is better suitable for field reality.
As shown in fig. 3 and 4, the anti-virtual-penetration lining board 4 is composed of an elastic deformation part 41 in the middle, and horizontal support sections 43 and bending connection ends 44 symmetrically arranged on two sides of the elastic deformation part 41, the bending connection ends 44 on two ends of the anti-virtual-penetration lining board 4 are fixed between the tile back 2 and the corresponding friction body 1, the end part of the friction body 1 extends to the lower part of the tile nose 3 of the tile back 2, the horizontal support sections 43 of the anti-virtual-penetration lining board 4 are supported on the extending sections 11 of the end part of the friction body 1, and the elastic deformation part 41 in the middle of the anti-virtual-penetration lining board 4 is arranged between the extending sections 11 of the end part of the friction body 1. Compared with the common brake shoe, the anti-deficiency brake shoe structure has the advantages that the friction body volume is larger than that of the common brake shoe due to the increase of the anti-deficiency lining plate, the contact area of the friction body and the wheel is larger, the heat dissipation area of the brake shoe is larger, the temperature rise of the brake shoe is slower during the brake shoe braking, the brake shoe temperature 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 present embodiment is basically the same in structure as embodiment 1, and is mainly different in that: as shown in fig. 5, 6 and 7, the elastic deformation portion 41 in the middle of the anti-virtual lining board 4 has a concave arc structure.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (4)
1. The utility model provides a prevent virtual brake shoe structure that wears, includes tile back (2) and sets up friction body (1) on tile back (2), tile back (2) are formed with bellied tile nose (3), its characterized in that: a virtual penetration preventing lining plate (4) is arranged below the tile nose (3) of the tile back (2), the virtual penetration preventing lining plate (4) is connected with the friction body (1), and the virtual penetration preventing lining plate (4) is matched with the tile nose (3) of the tile back (2) to form a closed structure;
an elastic deformation part (41) is arranged in the middle of the virtual penetration preventing 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 wheels;
the elastic deformation part (41) in the middle of the virtual penetration preventing lining plate (4) is of an upward convex or downward concave structure;
a notch (42) is arranged at a position corresponding to the elastic deformation part (41) in the middle of the anti-virtual-penetration 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 anti-virtual-penetration lining plate (4).
2. The anti-wear brake shoe construction of claim 1, wherein: the anti-virtual-penetration lining plate (4) consists of an elastic deformation part (41) in the middle, and horizontal support sections (43) and bending connecting ends (44) which are symmetrically arranged on two sides of the elastic deformation part (41), wherein the bending connecting ends (44) at two ends of the anti-virtual-penetration lining plate (4) are fixed between the tile back (2) and the corresponding friction body (1).
3. The anti-wear brake shoe construction of claim 2, wherein: the end part of the friction body (1) extends to the lower part of the tile nose (3) of the tile back (2), and the horizontal support section (43) of the virtual penetration-preventing lining plate (4) is supported on the extension section (11) of the end part of the friction body (1).
4. A virtual wear resistant brake shoe construction in accordance with claim 3 wherein: the elastic deformation part (41) in the middle of the anti-virtual 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 CN114593165A (en) | 2022-06-07 |
| CN114593165B true CN114593165B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210124730.7A Active CN114593165B (en) | 2022-02-10 | 2022-02-10 | Prevent virtual brake shoe structure of wearing |
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CA2249122A1 (en) * | 1998-07-23 | 2000-01-23 | Westinghouse Air Brake Company | Wheel tread conditioning brake shoe |
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| US4784242A (en) * | 1986-10-31 | 1988-11-15 | Bendix France | Pad for a disc brake and disc brake equipped with such pads |
| CN88210243U (en) * | 1988-03-05 | 1988-12-07 | 抚顺矿务局一公司化工厂 | Composite hem shoe for electric locomotive |
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| CN212868252U (en) * | 2020-06-29 | 2021-04-02 | 隆昌华盛铁路配件科技有限公司 | High-phosphorus brake shoe back for railway vehicle |
| CN213176560U (en) * | 2020-06-29 | 2021-05-11 | 隆昌华兴铁路配件有限公司 | Brake shoe steel backing of locomotive |
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|---|---|
| CN114593165A (en) | 2022-06-07 |
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