A detection device for brake calipers of new energy vehicles

Abstract

The utility model relates to the field of calliper detection, and disclose a kind of detection device for new energy automobile brake calliper, comprising: base, the base top end is attached with calliper, the calliper both sides are evenly installed with fixed component, for the calliper is fixed;It further includes the support frame of base top end fixed connection;The calliper both ends are evenly installed with several piston parts, several limit plates are equipped between the piston part, the limit plate outer wall both sides are evenly installed with pressure sensor;The limit plate is penetrated with sliding plate, and limit plate top end is fixedly connected with baffle, the baffle bottom end is attached with sliding plate, the limit plate outer wall is penetrated with round groove, the round groove is equipped with limit component, solve the traditional detection method multiple dependence manual operation, the piston stroke is measured by caliper and the return condition is observed, not only low efficiency, precision is limited, and it is difficult to record the time difference of two sides piston movement synchronously, lead to the problem that the evaluation of calliper hydraulic stiffness and sealing is not comprehensive enough.

Description

Technical Field

[0001] This utility model relates to the field of caliper testing, and more specifically to a testing device for brake calipers of new energy vehicles. Background Technology

[0002] Automotive brake calipers are components that apply force to the brake disc, which protrudes from the outside of the brake pads. The hydraulic pressure generated by the master cylinder is applied to the piston inside the caliper. As the piston expands, it pushes the brake pads against the brake disc, thus enhancing braking performance.

[0003] New energy vehicles are heavier than gasoline vehicles due to the weight of their batteries, resulting in greater braking inertia. This necessitates the use of dedicated electric vehicle tires and multi-piston calipers to meet braking requirements. Traditional testing methods often rely on manual operation, measuring piston stroke with calipers and observing return, which is not only inefficient and inaccurate but also makes it difficult to simultaneously record the time difference between the movements of the pistons on both sides. This leads to an incomplete assessment of the caliper's hydraulic stiffness and sealing performance. Therefore, this invention designs a testing device for new energy vehicle brake calipers to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a detection device for brake calipers of new energy vehicles.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A testing device for brake calipers in new energy vehicles includes: a base, with a caliper attached to the top of the base, and fixing components installed on both sides of the caliper for fixing the caliper; a support frame fixedly connected to the top of the base; several piston portions installed at both ends of the caliper, with several limiting plates between the piston portions, and pressure sensors installed on both sides of the outer wall of the limiting plates; a sliding plate extending through the limiting plate, and a baffle fixedly connected to the top of the limiting plate, the bottom end of the baffle fitting against the sliding plate; a circular groove extending through the outer wall of the limiting plate, with a limiting component installed in the circular groove for fixing the limiting plate to the sliding plate; the limiting component includes limiting pins extending through both ends of the circular groove, the ends of the limiting pins located within the circular groove and slidably connected thereto, and springs fixedly connected between the limiting pins.

[0006] Furthermore, a set of fixing components is installed at the top of the base corresponding to the caliper. The fixing components are clamps, and the caliper is fixed to the top of the base by the clamps.

[0007] Furthermore, a hydraulic oil pump is installed at the top of the support frame, and a set of pipes flows between the hydraulic oil pump and the caliper.

[0008] Furthermore, a power unit is installed at the top of the support frame. The power unit is a hydraulic rod, and the bottom end of the hydraulic rod is fixedly connected to the slide plate.

[0009] Furthermore, both sides of the top of the support frame are fixedly connected to a fixing plate, and the bottom of the fixing plate is provided with a sliding groove, and the top of the sliding plate is located in the sliding groove and slidably connected thereto.

[0010] Furthermore, the top of the skateboard is provided with a through groove corresponding to the limiting plate, the limiting plate is located in the through groove and fits with it, and several through holes are provided on both sides of the through groove.

[0011] Compared with the prior art, the beneficial effects of this utility model include: 1. The piston in the piston section is driven by a hydraulic oil pump to extend and retract, so that the piston touches the pressure sensor on the limit plate and records the displacement data when the pressure sensor is triggered. This data is compared with the theoretical stroke value to detect the deviation between the actual stroke and the designed stroke of the piston, which can reflect the hydraulic stiffness or sealing performance of the caliper. At the same time, the time difference between the triggering of the pressure sensors on both sides of the limit plate is recorded to detect the consistency of piston movement on both sides. When the hydraulic oil pump controls the piston to retract, the piston retraction speed and whether it is completely reset are observed to detect whether the piston is delayed or stuck.

[0012] 2. Press the limiting pin to make it enter the circular groove, and then insert the limiting plate into the through groove. When the baffle at the top of the limiting plate is in contact with the top of the slide plate, the limiting plate can be moved to adjust its position. When the through hole coincides with the limiting pin, under the action of the spring, the limiting pin moves away from each other along the circular groove, that is, the limiting pin is inserted into the through holes on both sides of the slide plate, thus fixing the limiting plate for subsequent caliper inspection. The limiting plate can be installed and removed according to the number of pistons in the caliper to meet the inspection needs of calipers with different numbers of pistons. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts, wherein: Figure 1 This is a schematic diagram of the structure of a testing device for brake calipers of new energy vehicles proposed in this utility model; Figure 2 This is a schematic diagram of the slide plate in a testing device for brake calipers of new energy vehicles proposed in this utility model; Figure 3 This is a split view of the sliding plate and the limiting plate in a testing device for brake calipers of new energy vehicles proposed in this utility model; Figure 4This is a split view of the limiting plate and limiting pin in a testing device for brake calipers of new energy vehicles proposed in this utility model; The following are the labels in the diagram: 1. Base; 2. Power unit; 3. Support frame; 4. Hydraulic pump; 5. Pipeline; 6. Caliper; 7. Piston; 8. Clamp; 9. Fixing plate; 10. Slide plate; 11. Limiting plate; 12. Baffle; 13. Pressure sensor; 14. Through hole; 15. Through groove; 16. Slide groove; 17. Limiting pin; 18. Spring; 19. Circular groove. Detailed Implementation

[0014] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods without changing the essential spirit of this utility model. Therefore, the following specific embodiments and accompanying drawings are merely exemplary descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction on the technical solution of this utility model.

[0015] According to one embodiment of the present invention, in conjunction with Figures 1-4 As shown.

[0016] A testing device for brake calipers of new energy vehicles includes: a base 1, with a mounting and fixing component 8 for fixing the caliper 6 at the top of the base 1; a support frame 3 fixedly connected to the top of the base 1; several piston parts 7 installed at both ends of the caliper 6; multiple limiting plates 11 cooperating between the piston parts 7; the specific number of limiting plates 11 can be adjusted according to the number of piston parts 7; pressure sensors 13 are installed on both sides of the outer wall of the limiting plates 11; a hydraulic oil pump 4 is installed at the top of the support frame 3; a set of pipes 5 flows between the hydraulic oil pump 4 and the caliper 6; it should be noted that the hydraulic oil pump 4 flows through the pipes 5. It communicates with the piston section 7 of the caliper 6 and is used to drive the piston of the piston section 7 to extend and retract, so that the piston touches the pressure sensor 13 on the limit plate 11 and records the displacement data when the pressure sensor 13 is triggered. It compares the data with the theoretical stroke value and then detects the deviation between the actual stroke and the designed stroke of the piston, which can reflect the hydraulic stiffness or sealing performance of the caliper 6. At the same time, it records the time difference of the triggering of the pressure sensor 13 on both sides of the limit plate 11 to detect the consistency of piston movement on both sides. When the hydraulic oil pump 4 controls the piston to retract, it observes the piston retraction speed and whether it is completely reset to detect whether the piston is delayed or stuck.

[0017] Specifically, the limiting plate 11 passes through the slide plate 10, and the power unit 2 is installed at the top of the support frame 3. The power unit 2 is a hydraulic rod, and the bottom end of the hydraulic rod is fixedly connected to the slide plate 10. Fixing plates 9 are fixedly connected to both sides of the top of the support frame 3. The bottom end of the fixing plate 9 is provided with a sliding groove 16. The top of the slide plate 10 is located in the sliding groove 16 and is slidably connected to it. It should be noted that the position of the limiting plate 11 in the sliding groove 16 can be adjusted according to the position of the piston part 7 of the caliper 6 to ensure that the pressure sensor 13 can be triggered when the piston of the piston part 7 extends.

[0018] Specifically, a baffle 12 is fixedly connected to the top of the limiting plate 11, and the bottom end of the baffle 12 is in contact with the slide plate 10. A circular groove 19 is passed through the outer wall of the limiting plate 11, and a limiting component is provided in the circular groove 19 to fix the limiting plate 11 and the slide plate 10. A through groove 15 is opened at the top of the slide plate 10 corresponding to the limiting plate 11. The limiting plate 11 is located in the through groove 15 and is in contact with it. Several through holes 14 are passed through both sides of the through groove 15. The limiting component includes a limiting pin 17 passing through both ends of the circular groove 19. The end of the limiting pin 17 is located in the circular groove 19 and is slidably connected to it. A spring 18 is fixedly connected between the limiting pins 17. It should be noted that the limiting pin 17 passes through the through hole 14 and is in contact with it. Pressing the limiting pins 17 on both sides of the limiting plate 11 makes it move along the circular groove 19. After the grooves 19 are brought closer together and the spring 18 is squeezed, so that it is fully inserted into the circular groove 19, the limiting plate 11 can be removed upwards. At the same time, more limiting plates 11 can be installed according to the number of piston parts 7 of the caliper 6 for testing. When installing the limiting plate 11, the limiting pin 17 is pressed into the circular groove 19, and then the limiting plate 11 is inserted into the through groove 15. When the baffle 12 at the top of the limiting plate 11 is in contact with the top of the slide plate 10, the limiting plate 11 can be moved to adjust its position. When the through hole 14 coincides with the limiting pin 17, under the action of the spring 18, the limiting pin 17 moves away from each other along the circular groove 19, that is, the limiting pin 17 is inserted into the through holes 14 on both sides of the slide plate 10, thus fixing the limiting plate 11 for subsequent testing of the caliper 6.

[0019] Working principle: The hydraulic oil pump is connected to the piston of the caliper through a pipeline. It drives the piston to extend and retract, so that the piston touches the pressure sensor on the limit plate and records the displacement data when the pressure sensor is triggered. This data is compared with the theoretical stroke value to detect the deviation between the actual stroke and the designed stroke of the piston, which can reflect the hydraulic stiffness or sealing performance of the caliper. At the same time, the time difference between the triggering of the pressure sensors on both sides of the limit plate is recorded to detect the consistency of piston movement on both sides. When the hydraulic oil pump controls the piston to retract, the piston retraction speed and whether it is completely reset are observed to detect whether the piston is delayed or stuck.

[0020] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A testing device for brake calipers in new energy vehicles, comprising: The base (1) is characterized in that: a caliper (6) is attached to the top of the base (1), and a fixing component is installed on both sides of the caliper (6) for fixing the caliper (6); It also includes a support frame (3) that is fixedly connected to the top of the base (1); The caliper (6) has several piston parts (7) installed at both ends, and several limiting plates (11) are provided between the piston parts (7). Pressure sensors (13) are installed on both sides of the outer wall of the limiting plates (11). The limiting plate (11) has a sliding plate (10) through it, and a baffle (12) is fixedly connected to the top of the limiting plate (11). The bottom of the baffle (12) is in contact with the sliding plate (10). A circular groove (19) is through the outer wall of the limiting plate (11). A limiting component is provided in the circular groove (19) to fix the limiting plate (11) and the sliding plate (10) together. The limiting component includes limiting pins (17) that pass through both ends of the circular groove (19). The ends of the limiting pins (17) are located inside the circular groove (19) and are slidably connected thereto. A spring (18) is fixedly connected between the limiting pins (17).

2. The testing device for brake calipers of new energy vehicles according to claim 1, characterized in that, A set of fixing components is installed on the top of the base (1) corresponding to the caliper (6). The fixing components are clamps (8), and the caliper (6) is fixed to the top of the base (1) by the clamps (8).

3. The testing device for brake calipers of new energy vehicles according to claim 1, characterized in that, A hydraulic oil pump (4) is installed at the top of the support frame (3), and a set of pipes (5) flows between the hydraulic oil pump (4) and the caliper (6).

4. The testing device for brake calipers of new energy vehicles according to claim 1, characterized in that, The support frame (3) has a power unit (2) installed at its top. The power unit (2) is a hydraulic rod, and the bottom end of the hydraulic rod is fixedly connected to the slide plate (10).

5. The testing device for brake calipers of new energy vehicles according to claim 1, characterized in that, The support frame (3) has fixed plates (9) on both sides of the top end. The bottom end of the fixed plate (9) has a groove (16). The top end of the slide plate (10) is located in the groove (16) and is slidably connected to it.

6. The testing device for brake calipers of new energy vehicles according to claim 1, characterized in that, The top of the slide plate (10) is provided with a through groove (15) corresponding to the limiting plate (11). The limiting plate (11) is located in the through groove (15) and fits against it. Several through holes (14) are passed through both sides of the through groove (15).

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