CN219178890U - Wave spring life test mechanism of chassis braking system - Google Patents
Wave spring life test mechanism of chassis braking system Download PDFInfo
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- CN219178890U CN219178890U CN202320270500.1U CN202320270500U CN219178890U CN 219178890 U CN219178890 U CN 219178890U CN 202320270500 U CN202320270500 U CN 202320270500U CN 219178890 U CN219178890 U CN 219178890U
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- plate
- centering block
- pressing plate
- wave spring
- pressing
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model discloses a wave spring life test mechanism of a chassis braking system, wherein a connector is fixed with a piston rod of an air cylinder; one end of the pressing plate is hinged with the connector, and the other end of the pressing plate is fixed with a pressing block; the top plate is fixed on the bottom plate through two supporting plates and a vertical plate; the lower centering block is fixed on the top plate; the upper centering block is arranged between the pressing plate and the lower centering block, and a central hole formed in the upper centering block is connected with a central hole formed in the lower centering block through a long bolt and a nut; the lower ends of the hinge plate I and the hinge plate II are hinged with the vertical plate; the first through hole formed in the pressing plate is hinged with the pin hole formed in the upper end of the first hinge plate and the pin hole formed in the upper end of the second hinge plate through the first pin shaft, and the clamping groove formed in the end, which is not provided with the boss, of the first pin shaft is internally provided with the first split retaining ring. The compressing force amplifying mechanism can compress the wave spring by adopting the air cylinder with smaller size, the upper centering block can not be blocked in the motion process of compressing or loosening the wave spring, and the disassembly and the assembly are convenient.
Description
Technical Field
The utility model relates to a spring life test mechanism, in particular to a waveform spring life test mechanism of a chassis braking system.
Background
The wave spring is generally applied to occasions with small load and deformation, and the axial precompression is required to be applied to the occasions with small spring stiffness, so that the service life of the wave spring is critical to the chassis braking system. The wave spring is constructed as shown in fig. 1. The existing waveform spring life test mechanism needs to adopt a cylinder with larger size (the aperture of a piston cavity is more than 125 mm) to provide the pressing force requirement of the waveform spring (the pressing force of the waveform spring needs to be about 5500N). In addition, the centering block of the existing waveform spring life test mechanism is in contact with the external long sleeve, and the waveform spring is easy to generate an inclined force on the centering block, so that the centering block can be severely worn after long-time working, the centering effect is poor, the situation of blocking easily occurs when the centering block is severe, and the life test precision of the waveform spring is greatly influenced. Moreover, current wave spring life test mechanism is in order to make the size little, also select the cylinder of using less stroke simultaneously, need demolish unable adjustment base's bolt earlier during the dismantlement, move out the frame with base, centering piece and outside long sleeve together after, demolish the long bolt on the centering piece again, just can take out the centering piece from outside long sleeve, and then take out wave spring, whole process is loaded down with trivial details, and assembly process is loaded down with trivial details equally when assembling wave spring and carrying out life test, and the total weight of base, centering piece and outside long sleeve is great moreover, the transport is laborious, fixed base in-process after the assembly wave spring, the screw hole of aiming at the frame with the through-hole of base also has very big degree of difficulty.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a waveform spring life test mechanism of a chassis braking system.
The technical scheme adopted by the utility model is as follows:
the utility model comprises a bottom plate, an air cylinder, a connector, a pressing plate, a lower centering block, an upper centering block, a long bolt, a nut, a first hinge plate, a second hinge plate and a first pin shaft; the cylinder body of the air cylinder is fixed on the bottom plate; the connector is fixed with a piston rod of the air cylinder; one end of the pressing plate is hinged with the connector, and the other end of the pressing plate is fixed with a pressing block; the top plate is fixed on the bottom plate through two supporting plates; the two support plates are fixed with the vertical plate, and the vertical plate is fixed on the bottom plate; the lower centering block is fixed on the top plate; the upper centering block is arranged between the pressing plate and the lower centering block, and a central hole formed in the upper centering block is connected with a central hole formed in the lower centering block through a long bolt and a nut; the lower ends of the hinge plate I and the hinge plate II are hinged with the vertical plate; the first through hole formed in the pressing plate is hinged with the pin hole formed in the upper end of the first hinge plate and the pin hole formed in the upper end of the second hinge plate through the first pin shaft, and the clamping groove formed in the end, which is not provided with the boss, of the first pin shaft is internally provided with the first split retaining ring.
Preferably, the center distance between the hinging central axes of the pressing plate and the connector and the first through hole of the pressing plate is larger than the distance between the geometric center of the pressing block and the central axis of the first through hole of the pressing plate.
More preferably, the center-to-center distance between the hinge center axes of the pressing plate and the connector and the first through hole of the pressing plate is more than twice as large as the distance from the geometric center of the pressing block to the first through hole center axis of the pressing plate.
More preferably, the piston chamber aperture of the cylinder is less than or equal to 63mm.
Preferably, the two support plates are connected with the top plate, the vertical plate and the bottom plate through fastening bolts, and the vertical plate is connected with the bottom plate through fastening bolts.
Preferably, the vertical plate and the bottom plate are connected with the reinforcing ribs through fastening bolts.
Preferably, the lower centering block is connected with the top plate through a fastening bolt.
Preferably, the specific structure of the hinging of the pressing plate and the connector is as follows: the pressing plate is clamped in the groove of the connector, a second through hole formed in the pressing plate is hinged with two pin holes formed in two sides of the groove of the connector through a second pin shaft, and a second split ring is arranged in a clamping groove formed in one end of the second pin shaft, which is not provided with the boss.
Preferably, the specific structure that the lower ends of the hinge plate I and the hinge plate II are hinged with the vertical plate is as follows: the third through hole is hinged with the pin hole formed in the lower end of the hinge plate and the pin hole formed in the lower end of the hinge plate through the third pin shaft, and the third split ring is arranged in the clamping groove formed in the end, which is not provided with the boss, of the third pin shaft.
The utility model has the following beneficial effects:
1. the pressing force amplifying mechanism is constructed by the pressing plate, the first hinge plate, the second hinge plate and the vertical plate, and the wave spring can be pressed by adopting the air cylinder with smaller size (5500N is needed for pressing force of the wave spring), so that the cost is saved.
2. According to the utility model, the outer long sleeve is abandoned, the upper centering block is not blocked in the movement process of compressing or loosening the wave spring, and the upper centering block is not easy to wear in the contact process of the upper centering block and the long bolt. In addition, the upper centering block can also be made of wear-resistant materials and subjected to heat treatment, so that the service life is further prolonged, and the service life test precision of the wave spring is greatly improved.
3. When the wave spring is dismounted, only the pin shaft I, the turnover pressing plate, the dismounting long bolt and the nut and the lifting of the upper centering block are needed, the dismounting is convenient, the heavy object is not needed to be moved in the dismounting process, and the situation that the hole is difficult to assemble is avoided.
Drawings
Fig. 1 is a schematic view of a wave spring.
Fig. 2 is a schematic structural diagram of a conventional wave spring life test mechanism.
Fig. 3 is a schematic view of the structure of the wave spring of the present utility model when compressed.
Fig. 4 is a schematic view of the structure of the present utility model when the wave spring is released.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
As shown in fig. 1, a wave spring life test mechanism of a chassis brake system comprises a bottom plate 1, an air cylinder 19, a connector 15, a pressing plate 8, a lower centering block 21, an upper centering block 6, a long bolt 20, a nut 23, a hinge plate I9, a hinge plate II 10 and a pin I12; the cylinder body of the air cylinder 19 is fixed on the bottom plate 1, and the connector 15 is fixed with the piston rod 18 of the air cylinder 19; one end of the pressing plate 8 is hinged with the connector 15, and the other end is fixed with a pressing block 7; the top plate 4 is fixed on the bottom plate 1 through two supporting plates 5; the two support plates 5 are fixed with the vertical plate 3, and the vertical plate 3 is fixed on the bottom plate 1; the lower centering block 21 is fixed on the top plate 4; the upper centering block 6 is arranged between the pressing plate 8 and the lower centering block 21, and a central hole formed in the upper centering block 6 is connected with a central hole formed in the lower centering block 21 through a long bolt 20 and a nut 23; the lower ends of the hinge plate I9 and the hinge plate II 10 are hinged with the vertical plate 3; the first through hole formed in the pressing plate 8 is hinged with a pin hole formed in the upper end of the first hinge plate 9 and a pin hole formed in the upper end of the second hinge plate 10 through a first pin shaft 12, and a first split ring 11 is arranged in a clamping groove formed in one end, which is not provided with a boss, of the first pin shaft 12.
As a preferred embodiment, the center-to-center distance between the hinge center axes of the press plate 8 and the connector 15 and the through-hole one of the press plate 8 is larger than the distance from the geometric center of the press block 7 to the through-hole one center axis of the press plate 8.
More preferably, the center-to-center distance between the hinge center axes of the pressing plate 8 and the connecting head 15 and the through-hole one of the pressing plate 8 is more than twice as large as the distance from the geometric center of the pressing block 7 to the through-hole one center axis of the pressing plate 8.
More preferably, the piston chamber aperture of the cylinder 19 is less than or equal to 63mm.
As a preferred embodiment, the two support plates 5 are connected to the top plate 4, the vertical plate 3 and the bottom plate 1 by fastening bolts, and the vertical plate 3 is also connected to the bottom plate 1 by fastening bolts.
As a preferred embodiment, the upright plate 3 and the bottom plate 1 are both connected to the reinforcing ribs 2 by fastening bolts.
As a preferred embodiment, the lower centering block 21 is connected to the top plate 4 by fastening bolts 22.
As a preferred embodiment, the specific structure of the hinging of the pressing plate 8 and the connector 15 is as follows: the pressing plate 8 is clamped in the groove of the connector 15, a second through hole formed in the pressing plate 8 is hinged with two pin holes formed in two sides of the groove of the connector 15 through a second pin shaft 16, and a second split washer 17 is arranged in a clamping groove formed in one end of the second pin shaft 16, which is not provided with a boss.
As a preferred embodiment, the specific structure that the lower ends of the hinge plate one 9 and the hinge plate two 10 are hinged with the vertical plate 3 is as follows: the third through hole formed in the vertical plate 3 is hinged with the pin hole formed in the lower end of the first hinge plate 9 and the pin hole formed in the lower end of the second hinge plate 10 through the third pin shaft 14, and the third split ring 13 is arranged in the clamping groove formed in the end, which is not provided with the boss, of the third pin shaft 14.
The working principle of the utility model is as follows:
the first split ring 11 is removed, the first pin shaft 12 is pulled out, the pressing plate 8 is turned over to enable the pressing plate 8 to be far away from the upper centering block 6, the nut 23 is unscrewed, the long bolt 20 is taken out, the upper centering block 6 is lifted, the wave spring is placed on the lower centering block 21, the upper centering block 6 is placed on the wave spring, the long bolt 20 penetrates into the central holes of the upper centering block 6 and the lower centering block 21, the nut 23 is screwed into the long bolt 20, and the compression amount of the wave spring reaches the preset requirement. Then, the pressing plate 8 is turned over to enable the pressing plate 8 to be placed on the upper centering block 6, the pin shaft I12 sequentially penetrates through the pin hole at the upper end of the hinge plate I9, the through hole I of the pressing plate 8 and the pin hole at the upper end of the hinge plate II 10, and the split retaining ring I11 is clamped in the clamping groove of the pin shaft I12. The following steps are executed: (1) the piston rod 18 of the air cylinder 19 (which is connected with the air pump through the reversing valve and is supplied by the air pump) moves upwards through controlling the reversing valve (which can be a hand-operated valve, an electromagnetic reversing valve or an electrohydraulic reversing valve, if the electromagnetic reversing valve or the electrohydraulic reversing valve is selected, the reversing valve or the electrohydraulic reversing valve can be controlled by a controller), the pressing plate 8 is driven to rotate and press the upper centering block 6, and the upper centering block 6 is pressed into contact with the lower centering block 21, so that the upper centering block 6 compresses the wave spring. (2) By controlling the reversing valve, the piston rod 18 of the air cylinder 19 moves downwards, the pressing plate 8 is driven to rotate and separate from the upper centering block 6, and the upper centering block 6 is separated from the lower centering block 21, so that the wave spring is relaxed. And (3) continuously cycling the step (1) and the step (2), and performing a life test by pressing and loosening. When the wave spring needs to be taken out for testing in the test process or after the test is finished, the process is as follows: and (3) removing the first split ring 11, extracting the first pin shaft 12, turning the pressing plate 8 to enable the pressing plate 8 to be far away from the upper centering block 6, unscrewing the nut 23, taking out the long bolt 20, and lifting the upper centering block 6 to take out the wave spring.
Claims (9)
1. A wave spring life test mechanism of a chassis braking system comprises a bottom plate and an air cylinder, wherein the cylinder body of the air cylinder is fixed on the bottom plate; the method is characterized in that: the device also comprises a connector, a pressing plate, a lower centering block, an upper centering block, a long bolt, a nut, a first hinge plate, a second hinge plate and a first pin roll; the connector is fixed with a piston rod of the air cylinder; one end of the pressing plate is hinged with the connector, and the other end of the pressing plate is fixed with a pressing block; the top plate is fixed on the bottom plate through two supporting plates; the two support plates are fixed with the vertical plate, and the vertical plate is fixed on the bottom plate; the lower centering block is fixed on the top plate; the upper centering block is arranged between the pressing plate and the lower centering block, and a central hole formed in the upper centering block is connected with a central hole formed in the lower centering block through a long bolt and a nut; the lower ends of the hinge plate I and the hinge plate II are hinged with the vertical plate; the first through hole formed in the pressing plate is hinged with the pin hole formed in the upper end of the first hinge plate and the pin hole formed in the upper end of the second hinge plate through the first pin shaft, and the clamping groove formed in the end, which is not provided with the boss, of the first pin shaft is internally provided with the first split retaining ring.
2. The wave spring life test mechanism of a chassis brake system of claim 1, wherein: the center distance between the hinging central axis of the pressing plate and the connector and the first through hole of the pressing plate is larger than the distance between the geometric center of the pressing block and the central axis of the first through hole of the pressing plate.
3. The wave spring life test mechanism of a chassis brake system of claim 2, wherein: the center distance between the hinging central axis of the pressing plate and the connector and the first through hole of the pressing plate is more than twice as large as the distance between the geometric center of the pressing block and the central axis of the first through hole of the pressing plate.
4. A wave spring life test mechanism for a chassis brake system according to claim 2 or 3, wherein: the aperture of a piston cavity of the air cylinder is smaller than or equal to 63mm.
5. The wave spring life test mechanism of a chassis brake system of claim 1, wherein: the two support plates are connected with the top plate, the vertical plate and the bottom plate through fastening bolts, and the vertical plate is connected with the bottom plate through fastening bolts.
6. The wave spring life test mechanism of a chassis brake system of claim 1, wherein: the vertical plate and the bottom plate are connected with the reinforcing ribs through fastening bolts.
7. The wave spring life test mechanism of a chassis brake system of claim 1, wherein: the lower centering block is connected with the top plate through a fastening bolt.
8. The wave spring life test mechanism of a chassis brake system of claim 1, wherein: the specific structure of the hinging of the pressing plate and the connector is as follows: the pressing plate is clamped in the groove of the connector, a second through hole formed in the pressing plate is hinged with two pin holes formed in two sides of the groove of the connector through a second pin shaft, and a second split ring is arranged in a clamping groove formed in one end of the second pin shaft, which is not provided with the boss.
9. The wave spring life test mechanism of a chassis brake system of claim 1, wherein: the concrete structure that the lower ends of the hinge plate I and the hinge plate II are hinged with the vertical plate is as follows: the third through hole is hinged with the pin hole formed in the lower end of the hinge plate and the pin hole formed in the lower end of the hinge plate through the third pin shaft, and the third split ring is arranged in the clamping groove formed in the end, which is not provided with the boss, of the third pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320270500.1U CN219178890U (en) | 2023-02-21 | 2023-02-21 | Wave spring life test mechanism of chassis braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320270500.1U CN219178890U (en) | 2023-02-21 | 2023-02-21 | Wave spring life test mechanism of chassis braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219178890U true CN219178890U (en) | 2023-06-13 |
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ID=86667563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320270500.1U Active CN219178890U (en) | 2023-02-21 | 2023-02-21 | Wave spring life test mechanism of chassis braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219178890U (en) |
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2023
- 2023-02-21 CN CN202320270500.1U patent/CN219178890U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231229 Address after: No. 17 Jianye Road, Taozhu Street, Zhuji City, Shaoxing City, Zhejiang Province, 311801 Patentee after: Zhejiang Jijia Auto Parts Co.,Ltd. Address before: No. 1, Xingye Road, Fengqiao Town, Zhuji City, Shaoxing City, Zhejiang Province, 311811 Patentee before: Zhejiang Jijia Electronic Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |