CN210464348U - Floating brake pad flatness detection device - Google Patents
Floating brake pad flatness detection device Download PDFInfo
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- CN210464348U CN210464348U CN201921348335.7U CN201921348335U CN210464348U CN 210464348 U CN210464348 U CN 210464348U CN 201921348335 U CN201921348335 U CN 201921348335U CN 210464348 U CN210464348 U CN 210464348U
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- piston
- floating brake
- cylinder body
- base
- brake pad
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Abstract
A floating brake pad flatness detection device comprises a cylinder body and a base, wherein a positioning hole is formed in the base, and a floating brake pad is fixed on the base through positioning; six piston cavities which are communicated with each other are formed in the cylinder body, six piston shafts are matched with the piston cavities of the cylinder body to form six pneumatic piston structures, the bottom of each piston shaft is a triangular plane, the triangular plane is located at the upper ends of three friction blocks on the floating brake lining supporting seat, and a spring is sleeved at the upper end of each piston shaft and connected with a nut. The utility model discloses a floating brake lining flatness detection device, simple structure, convenient to use can effectively detect the plane degree of floating brake lining fast.
Description
Technical Field
The utility model relates to a high-speed train powder metallurgy brake lining technical field especially relates to a floating brake lining flatness detecting device.
Background
The train is a main vehicle for people to travel at long distance. In recent years, the running speed of a high-speed train motor train unit is continuously increased, and the requirement of the train on braking is higher and higher, wherein a brake pad is a key part of a braking system. Therefore, the performance and quality of the brake pads is of critical importance.
At present, the brake pads used by the high-speed train motor train unit mostly adopt a floating structure (as shown in fig. 5), the brake pads adopt six supporting seats which are symmetrically arranged, and three friction blocks are installed on each supporting seat. The three friction blocks on the same support seat can be considered as a group of friction bodies, so that the original 18 friction surfaces are changed into 6 friction surfaces, and the running-in time of the brake pad and the brake disc is effectively reduced. Therefore, the break-in time of the brake pad is greatly related to the thickness difference of the 6 groups of friction bodies after being leveled.
As mentioned above, the flatness of the floating brake pad should be a value measured in the pressurized leveling state of the above 6 friction bodies. However, since each friction body is floating, the flatness of the brake pad cannot be directly measured at present.
Disclosure of Invention
The utility model aims at providing a floating brake lining flatness detection device that simple structure, convenient to use, detection efficiency are high.
The utility model discloses a floating brake lining flatness detection device, including cylinder body, base, open on the base has the locating hole, and floating brake lining is fixed on the base through the location, and its characterized in that, installs equal-height bush between cylinder body and the base, and the bolt passes the bush and fixedly connects cylinder body and base, guarantees cylinder body and base's installation interval and depth of parallelism by the bush; six piston cavities which are communicated with each other are formed in the cylinder body, six piston shafts are matched with the piston cavities of the cylinder body to form six pneumatic piston structures, the bottom of each piston shaft is a triangular plane, the triangular plane is located at the upper ends of three friction blocks on the floating brake lining supporting seat, and a spring is sleeved at the upper end of each piston shaft and connected with a nut.
The working principle of the floating brake pad flatness detection device of the utility model is that the brake floating brake pad is arranged on the base, and the brake pad is positioned and fixed by two positioning pins; air with certain pressure is introduced into the cylinder body, so that the piston shaft is subjected to downward pressure, the piston shaft moves downwards, the triangular bottom of the piston shaft pressurizes the three friction blocks on the same supporting seat, and the three friction blocks are adjusted to be in a coplanar state and are completely contacted with the bottom surface of the piston shaft. Each piston shaft corresponds to one supporting seat respectively, six piston cavities are communicated with one another to form six isobaric cylinders, the force applied by each piston shaft is equal, and the pressure applied to each group of friction bodies is the same; on the measuring platform, the heights of the upper surfaces of the six piston shafts are measured through the dial indicators, and the height difference of the six points is calculated, so that the flatness of the brake pad can be obtained. The piston shaft can reset after pressure relief through the elasticity of the spring.
The utility model discloses a floating brake lining flatness detection device, simple structure, convenient to use can effectively detect the plane degree of floating brake lining fast.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the front of FIG. 1;
FIG. 3 is a side view of FIG. 2;
fig. 4 is a schematic view of the measurement of the present invention;
FIG. 5 is a schematic view of a floating brake pad structure;
1. piston shaft, 2, nut, 3, bolt, 4, spring, 5, cylinder body, 6, bush, 7, floating brake lining, 8, base, 9, locating pin, 10, dial indicator, 11, and friction block.
Detailed Description
A floating brake pad flatness detection device comprises a cylinder body 5 and a base 8, wherein a positioning hole is formed in the base 8, and a floating brake pad 7 is fixed on the base 8 through a positioning pin 9, and is characterized in that a lining 6 with the same height is installed between the cylinder body 5 and the base 8, and a bolt 3 penetrates through the lining 6 to fixedly connect the cylinder body 5 and the base 8; six piston cavities which are communicated with each other are formed in the cylinder body 5, six piston shafts 1 are matched with the piston cavities of the cylinder body 5 to form six pneumatic piston structures, the bottom of each piston shaft 1 is a triangular plane, the triangular plane is located at the upper ends of three friction blocks 11 on a floating brake pad 7 supporting seat, and a spring 4 is sleeved at the upper end of each piston shaft 1 and connected with a nut 2.
Claims (1)
1. A floating brake pad flatness detection device comprises a cylinder body (5) and a base (8), wherein a positioning hole is formed in the base (8), and the floating brake pad flatness detection device is characterized in that a lining (6) with the same height is installed between the cylinder body (5) and the base (8), and a bolt (3) penetrates through the lining (6) to fixedly connect the cylinder body (5) and the base (8); six piston cavities which are communicated with each other are formed in the cylinder body (5), six piston shafts (1) are matched with the piston cavities of the cylinder body (5) to form six pneumatic piston structures, the bottom of each piston shaft (1) is a triangular plane, the triangular plane is located at the upper ends of three friction blocks (11) on a supporting seat of a floating brake pad (7), and a spring (4) is sleeved at the upper end of each piston shaft (1) and is connected with a nut (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921348335.7U CN210464348U (en) | 2019-08-20 | 2019-08-20 | Floating brake pad flatness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921348335.7U CN210464348U (en) | 2019-08-20 | 2019-08-20 | Floating brake pad flatness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210464348U true CN210464348U (en) | 2020-05-05 |
Family
ID=70452278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921348335.7U Active CN210464348U (en) | 2019-08-20 | 2019-08-20 | Floating brake pad flatness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210464348U (en) |
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2019
- 2019-08-20 CN CN201921348335.7U patent/CN210464348U/en active Active
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