Carbon skateboard testing device
By designing a test device for carbon skateboards, the problem of low shear strength testing efficiency in the prior art is solved, a fast and convenient testing process is achieved, and the production efficiency is improved.
Patent Information
- Application Number
- CN202420261805.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-02-02
AI Technical Summary
In the prior art, when testing the shear strength of a carbon skateboard, the sample block needs to be temperature-treated according to the ambient temperature, resulting in low testing efficiency.
A carbon skateboard testing device is designed, including a base, a press plate and a press head. Through the design of guide grooves and bosses, it is easy to clamp the measured carbon blocks of different heights, and the coordination of guide holes and press heads can achieve rapid force application and shear strength testing.
The device is simple in structure, easy to hold and test, and can quickly conduct bonding strength tests of multiple sample blocks, reducing testing costs and improving production efficiency.
Smart Images
Figure CN222704459U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of processing operations, and in particular relates to a carbon slide plate testing device. Background Art
[0002] Carbon slide plates are important components of rail transit vehicles such as electric locomotives, EMUs, light rails, and subways. They are installed on pantographs and in direct contact with the contact network. After obtaining current from the contact network wire, they conduct the current to the train and provide electricity. The pantograph slide plate and the contact network wire form a special friction pair with mechanical and electrical coupling. The main failure mode of carbon slide plates is wear to the limit, and they may also have to be replaced due to breakage, falling off, and falling off. Once the carbon slide plate on the train fails, it will seriously endanger driving safety. Therefore, the various performances of the carbon slide plate must meet the design requirements to ensure the stable operation of the electric locomotive.
[0003] During the production process of carbon skateboards suitable for rail train vehicles, the aluminum bracket needs to be bonded to the carbon strip to ensure its good conductivity and bonding shear strength. The bonding shear strength is related to the shear resistance of the carbon skateboard during operation and is a key performance of the carbon skateboard.
[0004] In actual testing, the carbon skateboard samples need to be tested at three ambient temperatures: low temperature (-40°C), room temperature, and high temperature (150°C). Due to the limitation of ambient temperature, the carbon skateboard samples often need to be subjected to corresponding temperature treatment before being clamped on the fixture for testing, which is inefficient. Utility Model Content
[0005] The utility model aims at the shear strength test demand of a carbon slide plate, improves the test efficiency and provides a carbon slide plate test device.
[0006] A carbon slide plate testing device, characterized in that it includes a base, a pressure plate and a pressure head; the base includes a fixing part, a connecting part and a testing part, the connecting part is used to connect the fixing part and the testing part; the fixing part has a concave cross-section, a carbon block to be tested is placed in the middle of the fixing part, and relative guide grooves are provided on both sides of the fixing part; bosses are provided at both ends of the pressure plate, and the bosses can slide along the guide grooves; the testing part is provided with a guide hole, and the pressure head applies force to the carbon block to be tested through the guide hole.
[0007] Preferably, a first fixing structure is provided above the pressure plate, and a second fixing structure is provided at the bottom of the fixing portion, and the first fixing structure and the second fixing structure can move toward each other along the same axis.
[0008] Preferably, the pressing plate is provided with a hole.
[0009] Preferably, the first fixing device is a locking nut, the second fixing device is a countersunk hole, the first fixing device and the second fixing device are connected by bolts, and the shape of the countersunk hole is the same as the shape of the end of the bolt.
[0010] Preferably, the base is manufactured in one piece.
[0011] The carbon slide plate testing device provided by the utility model has a simple structure, is convenient for clamping and testing, is easy to use and can quickly perform bonding strength tests on multiple sample blocks, thus reducing testing costs and effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0013] Figure 1 This is a schematic diagram of a carbon slide testing device in one embodiment of the utility model;
[0014] Figure 2 This is a schematic diagram of an integrally formed base of a carbon slide testing device in one embodiment of the utility model;
[0015] Figure 3 It is a schematic diagram of a pressure plate in a carbon slide testing device in one embodiment of the utility model;
[0016] Figure 4 A schematic diagram of a carbon block to be tested used in the carbon slide testing device provided by the utility model;
[0017] Figure 5 It is a schematic diagram of bolts in a carbon slide testing device in one embodiment of the utility model.
[0018] Serial numbers in the figure: 1-base, 2-pressing plate, 3-locking nut, 4-bolt, 5-pressing head, 6-carbon block to be tested, 11-guide hole, 12-guide groove, 13-countersunk hole, 21-boss, 41-bolt end, 61-aluminum block, 62-carbon block DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] The utility model provides a carbon slide plate testing device for measuring the shear strength of a carbonized plate. Figure 4 As shown, the carbon block 6 to be tested is composed of an aluminum block 61 and a carbon block 62 bonded and solidified together by an adhesive.
[0021] As attached Figure 1 As shown, the carbon slide plate testing device comprises a base 1, a pressing plate 2 and a pressing head 5;
[0022] The base 1 includes a fixing part, a connecting part and a testing part, wherein the connecting part is used to connect the fixing part and the testing part. The above three parts can be separately provided to realize the function of the base together, or they can be integrally formed.
[0023] The cross section of the fixing portion is in a concave shape, and the carbon block 6 to be measured is placed in the middle of the fixing portion.
[0024] As attached Figure 2 As shown, opposite guide grooves 12 are provided on both sides of the fixing portion.
[0025] As attached Figure 3 As shown, bosses 21 are provided at both ends of the pressing plate 2, and the shape of the guide groove matches the shape of the bosses. The bosses 21 can slide along the guide groove 12, so as to facilitate the clamping of the carbon blocks 6 to be tested of different heights. When the pressing plate 2 is pressed on the carbon block 6 to be tested, it will not deviate, rotate or warp.
[0026] The test part is provided with a guide hole 11, and the pressure head 5 is connected to the universal testing machine and applies force to the carbon block 6 to perform a shear strength test through the guide hole 11. The test pressure head 5 can slide up and down in the guide hole 11 to prevent tilting during the test.
[0027] A first fixing structure is provided above the pressure plate, and a second fixing structure is provided at the bottom of the fixing part. The first fixing structure and the second fixing structure can move toward each other along the same axis, and the measured carbon block 6 is fixed to the fixing part of the base 1 through relative movement and tightening.
[0028] In an embodiment provided by the present invention, the first fixing device is a locking nut 3, the second fixing device is a countersunk hole 13, the first fixing device and the second fixing device are connected by a bolt 4, and the shape of the countersunk hole 13 is the same as the shape of the end 41 of the bolt.
[0029] In one embodiment, the pressing plate is provided with a hole.
[0030] The bolt 4 passes through the countersunk hole 13 and the hole on the pressure plate to be connected with the locking nut 3 . The carbon block 6 to be measured is fixed on the fixed part of the base 1 through the movement of the locking nut 3 on the bolt 4 .
[0031] In this embodiment, the countersunk hole 13 is hexagonal and can be matched with the bolt end 41 of the bolt 4; when the bolt 4 is tightened and the pressure plate 2 is pressed on the test sample block 6, the countersunk hole 13 can fix the bolt 4 to prevent the bolt from rotating;
[0032] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structural transformation made by using the contents of the specification and drawings of the utility model, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the utility model. The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structural transformation made by using the contents of the specification and drawings of the utility model, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the utility model.
[0033] Matters not covered in this utility model are known technologies. The above embodiments are only used to illustrate the technical solutions of this utility model, rather than to limit them; although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of this utility model, and should be included in the protection scope of this utility model.
Claims
1. A carbon slide testing device, characterized in that: Including base, pressing plate and pressing head; The base comprises a fixing part, a connecting part and a testing part, wherein the connecting part is used to connect the fixing part and the testing part; the fixing part has a concave cross section, a carbon block to be tested is placed in the middle of the fixing part, and opposite guide grooves are provided on both sides of the fixing part; bosses are provided at both ends of the pressing plate, and the bosses can slide along the guide grooves; The testing part is provided with a guide hole, and the pressure head passes through the guide hole to apply force to the carbon block to be tested.
2. The carbon slide testing device according to claim 1, characterized in that: A first fixing structure is disposed above the pressure plate, and a second fixing structure is disposed at the bottom of the fixing portion. The first fixing structure and the second fixing structure can move toward each other along the same axis.
3. The carbon slide testing device according to claim 1, characterized in that: The pressing plate is provided with a hole.
4. The carbon slide plate testing device according to claim 2, characterized in that: The pressing plate is provided with a hole.
5. The carbon slide testing device according to claim 2, characterized in that: The first fixing structure is a locking nut, the second fixing structure is a countersunk hole, the first fixing structure and the second fixing structure are connected by bolts, and the shape of the countersunk hole is the same as the shape of the end of the bolt.
6. The carbon slide testing device according to claim 1, characterized in that: The base is manufactured by integral molding.