CN209878338U - Brake chamber test monitoring device of drum brake - Google Patents
Brake chamber test monitoring device of drum brake Download PDFInfo
- Publication number
- CN209878338U CN209878338U CN201920946821.2U CN201920946821U CN209878338U CN 209878338 U CN209878338 U CN 209878338U CN 201920946821 U CN201920946821 U CN 201920946821U CN 209878338 U CN209878338 U CN 209878338U
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- brake
- stay wire
- displacement sensor
- pressure sensor
- plate
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Abstract
The utility model discloses a drum brake's brake chamber test monitoring devices. The top plate and the bottom plate are fixedly connected with each other through four connecting rods at four corners to form a basic frame, and the basic frame is fixedly arranged on the brake assembly test tool; the brake air chamber is fixedly installed on the top surface of a top plate of the foundation frame, the end part of a push rod at the lower end of the brake air chamber is fixedly connected with a connecting shaft at the upper end of a pull pressure sensor after penetrating through the top plate, the connecting shaft at the lower end of the pull pressure sensor penetrates through a bottom plate and is connected to a brake cam shaft through a brake adjusting arm, the pull wire displacement sensor is fixedly installed on the side part of the top plate through a pull wire displacement sensor installing plate, one end of the pull wire installing plate is fixedly connected to the connecting shaft. The invention realizes that the push rod stroke and the thrust of the brake chamber can be monitored in real time when the brake assembly is tested, and provides more support for the test analysis of the brake assembly.
Description
Technical Field
The utility model belongs to brake chamber's monitoring devices, concretely relates to brake chamber's operating condition's when can real-time supervision drum brake assembly test device.
Background
Brake chambers, commonly used in pneumatic drum brakes, function to convert the pressure of compressed air into mechanical force that rotates a brake cam shaft. The brake chamber is arranged on the air chamber bracket, and when the brake is performed, the air pressure enables the diaphragm to deform to push the air chamber push rod, so as to drive the brake adjusting arm to rotate the cam shaft, and the brake shoe friction plate is pressed to the brake drum, so that the brake is completed.
The working stroke and the thrust of the push rod of the air chamber are important research data of the brake chamber, and have important significance for the analysis of the brake assembly. When the brake chamber is independently tested and analyzed, the stroke and the thrust of the chamber are easy to measure; when the brake assembly is tested, the stroke and thrust of the brake chamber cannot be measured because the brake chamber is directly mounted on the brake and connected with the brake adjusting arm.
SUMMERY OF THE UTILITY MODEL
In order to make more comprehensive and more detailed observation and analysis of the brake assembly test, more test data, such as the working stroke and thrust of the brake chamber, needs to be acquired. The utility model provides a brake chamber's experimental monitoring devices, aim at can monitor brake chamber's push rod stroke and thrust in real time under the prerequisite that does not influence stopper function and experiment.
In order to achieve the above purpose, the specific scheme of the utility model is as follows:
the utility model comprises a top plate, four connecting rods, a bottom plate, a stay wire displacement sensor mounting plate, a stay wire mounting plate and a stay wire pressure sensor; the top plate and the bottom plate are fixedly connected with each other through four connecting rods at four corners to form a basic frame, and the basic frame is fixedly arranged on the brake assembly test tool; the brake air chamber is fixedly installed on the top surface of a top plate of the foundation frame, the end part of a push rod at the lower end of the brake air chamber is fixedly connected with a connecting shaft at the upper end of a pull pressure sensor after penetrating through the top plate, the connecting shaft at the lower end of the pull pressure sensor penetrates through a bottom plate and is connected to one end of a brake adjusting arm, the other end of the brake adjusting arm is connected to a brake cam shaft, the pull wire displacement sensor is fixedly installed on the side part of the top plate through a pull wire displacement sensor installing plate, one end of the pull wire installing plate is.
The other end of the stay wire mounting plate is fixedly connected to a stay wire end of the stay wire displacement sensor through a stay wire connecting block.
And the base frame is fixedly arranged on the brake assembly test tool through the air chamber bracket.
The invention has the beneficial effects that:
the utility model discloses monitoring devices, simple structure, reliable under the prerequisite that does not change stopper assembly machinery transmission effect, has increased the installation space who draws pressure and act as go-between sensor, makes the stopper assembly can monitor brake chamber's push rod stroke and thrust in real time when testing, provides more data support to the experimental analysis of stopper assembly.
Drawings
FIG. 1 is a schematic diagram of a brake assembly test structure.
Fig. 2 is a side view of the present invention.
Fig. 3 is a comparison diagram before and after installation of the utility model.
Fig. 4 is a basic frame structure diagram of the present invention.
In the figure: 1. brake chamber, 2, roof, 3, connecting rod, 4, bottom plate, 5, braking adjusting arm mounted position, 6, braking camshaft, 7, the experimental frock of stopper assembly, 8, stay wire displacement sensor 9, stay wire displacement sensor mounting panel, 10, the connecting block of acting as go-between, 11, the mounting panel of acting as go-between, 12, draw pressure sensor, 13, connecting axle, 14, air chamber support.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific embodiments:
as shown in fig. 1 and 2, the monitoring device of the present invention comprises a top plate 2, four connecting rods 3, a bottom plate 4, a stay wire displacement sensor 8, a stay wire displacement sensor mounting plate 9, a stay wire mounting plate 11 and a pull pressure sensor 12; the top plate 2 and the bottom plate 4 are respectively arranged in an up-down parallel manner, the top plate 2 and the bottom plate 4 are fixedly connected relatively through four connecting rods 3 at four corners to form a basic frame, and the basic frame is fixedly arranged on a brake assembly test tool 7; the foundation frame is fixedly mounted to the brake assembly test fixture 7 through the original air chamber bracket 14. As shown in figure 4, four connecting rods 3 are firstly used for connecting the top plate 2 and the bottom plate 4, the base frame of the monitoring device is formed by locking and fixing nuts, the base frame is arranged on an air chamber bracket of the brake assembly at the original brake air chamber position and is fastened by bolts and nuts, as shown in figure 3. The bottom plate replaces the original installation position of the brake chamber and is installed on the installation surface of the air chamber bracket 14 of the brake assembly, so that the brake chamber can be installed on the bottom plate, and a certain installation space is provided for the monitoring accessory.
The brake chamber 1 is fixedly arranged on the top surface of a top plate 2 of a basic frame, the upper end and the lower end of a tension and pressure sensor 12 are respectively provided with a connecting shaft, the end part of a push rod at the lower end of the brake chamber 1 penetrates through the top plate 2 and then is fixedly connected with a connecting shaft 13 at the upper end of the tension and pressure sensor 12, the connecting shaft 13 at the lower end of the tension and pressure sensor 12 penetrates through a bottom plate 4 and is connected to one end of a, the mounting position 5 is shown in fig. 1, the other end of the brake adjusting arm is connected to a brake camshaft 6, a stay wire displacement sensor 8 is fixedly mounted on the side of a top plate 2 through a stay wire displacement sensor mounting plate 9, the stay wire end of the stay wire displacement sensor 8 faces downwards, one end of a stay wire mounting plate 11 is fixedly connected to a connecting shaft 13 at the upper end of a stay wire pressure sensor 12, and the other end of the stay wire mounting plate 11 is connected to the stay wire end of the stay wire displacement sensor 8 through a stay wire connecting block 10.
As shown in fig. 2, the connecting shaft 13 is rotated by means of a screw thread, and the connecting shaft 13, the tension pressure sensor 12, the tension mounting plate 11 and the connecting shaft 13 are connected in sequence to form a movable assembly in the frame of the monitoring device.
As shown in fig. 1, the brake chamber 1 and the cable displacement mounting plate 9 are mounted on the outside and inside of the top plate 2, respectively, and fastened with nuts. And then the stay wire displacement sensor 4 is fixed on the stay wire displacement sensor mounting plate, and the stay wire faces the direction of the bottom plate 4 by paying attention to the mounting direction.
The positions of the stay wire displacement sensor 8 and the stay wire displacement sensor mounting plate 9 are always fixed and do not move along with the movement of the air chamber push rod.
The connecting axle totally two, install respectively in pulling pressure sensor's both ends: the upper end connecting shaft 13 is used for connecting a push rod of the brake air chamber 1, and the lower end connecting shaft 13 is used for connecting a brake adjusting arm. The push rod of the original brake chamber 1 directly brakes the adjusting arm, the connecting function of the device is restored, and the brake adjusting arm moves along with the movement of the push rod 1 of the brake chamber.
One side of the stay wire mounting plate 11 is mounted at the outer side part of the connecting shaft 13 at the upper end of the stay wire pressure sensor 12 and moves along with the sensor of the connecting shaft 13 at the upper end, and the stay wire connecting block 10 is mounted at the other side of the stay wire mounting plate and fixes the stay wire head of the stay wire displacement sensor 8 to complete the complete installation of the stay wire displacement sensor 8.
The movable assembly in the monitoring device is placed in the frame, the connecting shaft 13 provided with one end of the stay wire mounting plate 11 is connected with the push rod of the brake chamber 1, and the stay wire mounting plate 11 and the stay wire displacement sensor 8 need to be in the same direction, as shown in fig. 2. The connecting shaft 13 is rotated to fasten the wire mounting plate 11 against rotation. And finally, fixing the stay wire head of the stay wire displacement sensor 8 on the stay wire mounting plate 11 by using the stay wire connecting block 9 and the bolt and the nut, and completing the mounting of the brake chamber test monitoring device, wherein the front change and the back change are shown in figure 3.
When the monitoring device works, a push rod of the brake air chamber 1 extends and retracts to move to drive a connecting shaft 13 at the upper end of a tension and pressure sensor 12 to move axially, the connecting shaft 13 transmits the air chamber thrust to the tension and pressure sensor 11, the connecting shaft 13 at the lower end of the tension and pressure sensor 12 pushes a brake cam shaft 6 to move through a brake adjusting arm, and the tension and pressure sensor 12 detects the tension and pressure and monitors the real-time thrust of the air chamber. Meanwhile, as the connecting shaft 13 at the upper end of the pull pressure sensor 12 is fixedly connected with the pull end of the pull displacement sensor 8, the pull displacement sensor 8 detects the movement displacement, so that the pull displacement sensor 8 monitors the real-time stroke of the push rod of the air chamber.
Therefore, the brake chamber originally installed at the bottom plate is installed at the top plate, the installation space of the pull pressure sensor and the pull wire displacement sensor is increased, the push rod stroke and the thrust of the brake chamber can be monitored in real time during the test of the brake assembly, and more technical support is provided for the test analysis of the brake assembly.
Claims (3)
1. A brake chamber test monitoring device of a drum brake is characterized in that: comprises a top plate (2), four connecting rods (3), a bottom plate (4), a stay wire displacement sensor (8), a stay wire displacement sensor mounting plate (9), a stay wire mounting plate (11) and a pull pressure sensor (12); the top plate (2) and the bottom plate (4) are fixedly connected with each other through four connecting rods (3) at four corners to form a basic frame, and the basic frame is fixedly arranged on a brake assembly test tool (7); brake chamber (1) fixed mounting is in basic frame's roof (2) top surface, the push rod tip of brake chamber (1) lower extreme passes behind roof (2) and draws connecting axle (13) rigid coupling of pressure sensor (12) upper end, draw connecting axle (13) of pressure sensor (12) lower extreme and pass bottom plate (4) and be connected to the one end of braking adjusting arm, the other end of braking adjusting arm is connected to on braking camshaft (6), displacement sensor (8) of acting as go-between is fixed mounting in roof (2) lateral part through displacement sensor mounting panel (9) of acting as go-between, one end fixed connection of mounting panel (11) of acting as go-between is drawn on connecting axle (13) of pressure sensor (12) upper end, the other end of mounting panel (11) of acting as go-between is connected to.
2. A drum brake chamber test monitoring arrangement according to claim 1, characterised in that: the other end of the stay wire mounting plate (11) is fixedly connected to a stay wire end of the stay wire displacement sensor (8) through a stay wire connecting block (10).
3. A drum brake chamber test monitoring arrangement according to claim 1, characterised in that: the base frame is fixedly arranged on the brake assembly test tool (7) through an air chamber bracket (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920946821.2U CN209878338U (en) | 2019-06-20 | 2019-06-20 | Brake chamber test monitoring device of drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920946821.2U CN209878338U (en) | 2019-06-20 | 2019-06-20 | Brake chamber test monitoring device of drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209878338U true CN209878338U (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920946821.2U Active CN209878338U (en) | 2019-06-20 | 2019-06-20 | Brake chamber test monitoring device of drum brake |
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| Country | Link |
|---|---|
| CN (1) | CN209878338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593912A (en) * | 2022-03-10 | 2022-06-07 | 一汽解放汽车有限公司 | Dynamic characteristic testing equipment and method for drum brake |
-
2019
- 2019-06-20 CN CN201920946821.2U patent/CN209878338U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593912A (en) * | 2022-03-10 | 2022-06-07 | 一汽解放汽车有限公司 | Dynamic characteristic testing equipment and method for drum brake |
| CN114593912B (en) * | 2022-03-10 | 2024-01-16 | 一汽解放汽车有限公司 | Dynamic characteristic test equipment and test method for drum brake |
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