CN218156878U

CN218156878U - Motor vehicle parking braking performance test platform

Info

Publication number: CN218156878U
Application number: CN202222398885.8U
Authority: CN
Inventors: 杨祖兴; 周磊
Original assignee: Hefei Shenghong Motor Vehicle Testing Co ltd
Current assignee: Hefei Shenghong Motor Vehicle Testing Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2022-12-27
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to a motor vehicle parking braking capability test platform, including the ramp that utilizes the concrete to build, the recess is left to the middle section position of ramp, the inboard of ramp recess is provided with test platform, and test platform's below central line position is provided with changes the roller, test platform's both sides below is equallyd divide and is do not provided with a set of first pneumatic cylinder and second pneumatic cylinder, first pneumatic cylinder and second pneumatic cylinder cooperation are changeed roller transmission test platform and are 15 °, 20 °, -15 ° and-20 inclination change, and this scheme rotates through the inboard at the ramp and connects test platform, and test platform's both ends all set up first pneumatic cylinder, and the both ends that utilize first pneumatic cylinder transmission test platform rotate around changeing the roller, realize test platform two-way inclination's convenient adjustment, the convenient detection of the parking performance of being convenient for.

Description

Motor vehicle parking braking performance test platform

Technical Field

The application relates to the technical field of parking performance detection, in particular to a motor vehicle parking brake performance test platform.

Background

According to the national standard GB7258-2004 technical conditions for safety of motor vehicle operation, there are two methods for testing the parking brake performance: 1. 7.14.2 parking brake Performance test: when the braking force of the parking braking device of the automobile and the right three-wheeled motorcycle is detected by using the braking detection platform, the automobile is unloaded, a driver is seated, the parking braking device is used, and the sum of the parking braking force is not less than 20 percent of the whole automobile weight of the automobile under the test state (not less than 15 percent of the automobile with the total mass being 1.2 times of the total mass); 2. 7.13.3 parking brake Performance test: under the no-load state, the parking brake device can ensure that the motor vehicle keeps stationary in the positive and negative directions on a slope with the gradient of 20 percent (15 percent for the motor vehicle with the total mass of less than 1.2 times of the total mass of the motor vehicle) and the adhesion coefficient of the tire and the road surface of not less than 0.7, and the time of the parking brake device is not less than 5min. For this purpose, the "motor vehicle safety inspection agency routinely inspects the qualification approval requirements" stipulates that the inspection agency requires the construction of a parking ramp: the design requirements of the actual measurement of the parking performance of the vehicle on the ramp include that the ramp is 15% and 20% respectively, the general design proportion is 1.5m high, 3.5m wide and 10m long for 15% of the ramp, and 2m high, 3.5m wide and 10m long for 20% of the ramp. The road surface adhesion coefficient of the ramp is not less than 0.7.

It can be seen that in addition to the brake test stand, each motor vehicle safety technical test mechanism must also establish two test ramps for testing the performance of the parking brake, and requires a site of at least 300m (excluding turning and turning around sites) according to technical requirements, and corresponding capital construction costs, which leads to an increase in the cost of the detection mechanism. Therefore, in order to solve the problems that the field area required by the existing motor vehicle parking detection device is large and the cost investment of a detection mechanism is large, the technical personnel in the field provide a motor vehicle parking braking performance test platform.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the application provides a testing platform for parking brake performance of a motor vehicle.

The application provides a parking brake performance testing platform for a motor vehicle, which comprises a ramp constructed by concrete, wherein a groove is reserved in the middle section of the ramp, a testing platform is arranged on the inner side of the groove of the ramp, a rotating roller is arranged at the central line position below the testing platform, a group of first hydraulic cylinders and a group of second hydraulic cylinders are respectively arranged below two sides of the testing platform, and the first hydraulic cylinders and the second hydraulic cylinders are matched with the rotating roller to drive the testing platform to change the inclination angles of 15 degrees, 20 degrees, -15 degrees and-20 degrees;

and a weighing plate is arranged on the upper end face of the test platform, and whether the motor vehicle is displaced or not is monitored by utilizing data detected by the weighing plate when the motor vehicle is parked.

Preferably, the central line position of the ramp groove is fixedly connected with a limiting frame, the upper end of the limiting frame is provided with an arc-shaped groove, and the limiting frame is coaxially and rotatably connected with the rotating roller.

Preferably, the support is fixedly connected to the lower portion of the test platform and symmetrically arranged relative to the center line of the test platform, and the bottom of the center line of the support is fixedly connected with the outer wall of the rotary roller.

Preferably, the weighing plate is located on one side of the test platform, the weighing plate and the upper end face of the test platform are arranged in a flush mode, and pressure sensors are arranged at the positions of four corners of the weighing plate.

Preferably, four through grooves have been seted up on the test platform, and each inboard that leads to the groove all rotates and is connected with the stopper, the fan-shaped structure is personally submitted in the stopper test, and central symmetry sets up between four stoppers to one side and the test platform rotation that four stoppers are close to the test platform central line are connected, support middle section position fixedly connected with bracing piece, and rotate on the bracing piece and be connected with the third pneumatic cylinder to rotate between the output of third pneumatic cylinder and the stopper and connect.

To sum up, the application comprises the following beneficial technical effects:

the test platform is rotatably connected to the inner side of the ramp, the first hydraulic cylinders are arranged at the two ends of the test platform, and the two ends of the test platform are driven by the first hydraulic cylinders to rotate around the rotating rollers, so that the two-way inclination angle of the test platform can be conveniently adjusted; through set up weighing plate on test platform, whether utilize weighing plate to vehicle displacement when the parking monitor to convenient judgement vehicle parking performance is good or bad, utilize the stopper that sets up the liftable on test platform, the stopper contradicts the vehicle when the parking inefficacy to the vehicle, thereby avoids taking place the possibility of taking place to damage, promotes the security that the vehicle detected time measuring.

Drawings

FIG. 1 is an isometric view of a parking brake performance test platform for a motor vehicle according to an embodiment of the present application;

FIG. 2 is a block diagram of an isometric test platform of a test platform for testing parking brake performance of a motor vehicle according to an embodiment of the present disclosure;

FIG. 3 is a partial cross-sectional view of a testing platform for testing the parking brake performance of a motor vehicle according to an embodiment of the application.

Description of reference numerals: 1. a ramp; 2. a test platform; 3. a support; 4. a limiting frame; 5. a first hydraulic cylinder; 6. a second hydraulic cylinder; 7. a limiting block; 701. a movable groove; 8. rotating the roller; 9. a support bar; 10. A third hydraulic cylinder; 11. and (4) weighing plates.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a motor vehicle parking brake performance test platform. Referring to fig. 1-3, a parking brake performance testing platform for a motor vehicle comprises a ramp 1 constructed by concrete, a groove is reserved at the middle section of the ramp 1, a testing platform 2 is arranged on the inner side of the groove of the ramp 1, a rotating roller 8 is arranged at the central line position below the testing platform 2, a group of first hydraulic cylinder 5 and a group of second hydraulic cylinder 6 are respectively arranged below the two sides of the testing platform 2, the first hydraulic cylinder 5 and the second hydraulic cylinder 6 are matched with the rotating roller 8 to drive the testing platform 2 to change at inclination angles of 15 degrees, 20 degrees, 15 degrees and-20 degrees, the fixed ends of the first hydraulic cylinder 5 and the second hydraulic cylinder 6 are preferably rotatably connected to the inner side of the groove of the ramp 1, the output ends of the first hydraulic cylinder 5 and the second hydraulic cylinder 6 are rotatably connected to a support 3, a limiting frame 4 is fixedly connected to the central line position of the groove of the ramp 1, an arc-shaped groove is formed in the upper end of the limiting frame 4, the limiting frame 4 and the rotating roller 8 are coaxially rotatably connected, the opening of the arc-shaped groove of the limiting frame 4 is less than 180 degrees, end covers are fixedly connected to the two ends of the limiting frame 4, and the end covers are used for limiting the axial position of the rotating roller 8 inside the limiting frame 4;

the upper end face of the testing platform 2 is provided with a weighing plate 11, whether the motor vehicle is parked or not is monitored by using data detected by the weighing plate 11, the lower part of the testing platform 2 is fixedly connected with a bracket 3, the bracket 3 is symmetrically arranged relative to the central line of the testing platform 2, the central line bottom of the bracket 3 is fixedly connected with the outer wall of a rotating roller 8, two preferable first hydraulic cylinders 5 and two preferable second hydraulic cylinders 6 are arranged, the positions of the bracket 3 corresponding to the first hydraulic cylinders 5 and the second hydraulic cylinders 6 are respectively provided with a movable groove, the contact between the hydraulic cylinders and the bracket 3 is avoided, the weighing plate 11 is positioned at one side of the testing platform 2, the weighing plate 11 is arranged flush with the upper end face of the testing platform 2, four corner positions of the weighing plate 11 are respectively provided with a pressure sensor, and the preferable weighing plate 11 is in communication connection with an external processor, the treater is calculated the gravity numerical value of vehicle, simultaneously with data feedback to display terminal on, four logical grooves have been seted up on test platform 2, and the inboard of each logical groove all rotates and is connected with stopper 7, the fan-shaped structure is personally submitted in the 7 tests of stopper, and central symmetry sets up between four stoppers 7, and four stoppers 7 are close to one side of test platform 2 central lines and test platform 2 rotate and are connected, 3 middle section position fixedly connected with bracing pieces 9 of support, and rotate on the bracing piece 9 and be connected with third pneumatic cylinder 10, and rotate between the output of third pneumatic cylinder 10 and the stopper 7 and connect, movable groove 701 has been seted up to the bottom central line position of preferred stopper 7, and the inboard fixedly connected with horizontal pole of movable groove 701, the output of third pneumatic cylinder 10 rotates and connects on the horizontal pole.

The implementation principle of the platform for testing the parking brake performance of the motor vehicle in the embodiment of the application is as follows: before detection, a vehicle runs to a test platform 2 through a ramp 1, front wheels of the vehicle are stopped on a weighing plate 11, then a parking hand brake is pulled, a driver can select different inclination angles of the test platform 2 according to different vehicle models from the top to the bottom of the vehicle, a hydraulic cylinder control mechanism is controlled through a preset program, the hydraulic cylinder control mechanism drives a first hydraulic cylinder 5 and a second hydraulic cylinder 6 to synchronously stretch and retract, so that the test platform 2 is adjusted to rotate to 15 degrees or 20 degrees, after adjustment is completed, the weighing plate 11 can measure the pressure of the vehicle on the test platform 2 at the moment and transmit the data to a processor for recording, then the test time is waited, the data of the weighing plate 11 is transmitted to the processor once every 1min, the processor feeds back the data to a display mechanism visually, when the test platform 2 is inclined, the weighing plate 11 is in an inclined state, and pressure sensors below the weighing plate 11 are respectively located at four corner positions, so that when the weighing position is changed, the detected data of the weighing plate 11 is changed, the data range of the device is measured by utilizing multiple times, the data is measured, and the data is calculated, and is not in a qualified detection range, and the allowable change range when the data is detected, and the allowable data is not detected, and the allowable range is not detected, and the unqualified range is detected, and the data is detected, and the allowable range is detected, if the allowable range is not detected, if the allowable range is detected, and if the allowable range is not detected, the allowable range is not included; in the testing process, the third pneumatic cylinder 10 extends, rotates stopper 7 around its one end to stopper 7 stretches out test platform 2 and sets up, utilizes stopper 7 to restrict the rear of front wheel and the place ahead of rear wheel, makes when the two-way parking of vehicle became invalid, and the vehicle is unlikely to direct backward slip, leads to the vehicle impaired, with this security that promotes the testing process.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a motor vehicle parking braking capability test platform, includes ramp (1) that utilizes the concrete to build, and the recess is left to the middle section position of ramp (1), its characterized in that: the inner side of a groove of the ramp (1) is provided with a test platform (2), a rotating roller (8) is arranged at the central line position below the test platform (2), a group of first hydraulic cylinders (5) and a group of second hydraulic cylinders (6) are respectively arranged below two sides of the test platform (2), and the first hydraulic cylinders (5) and the second hydraulic cylinders (6) are matched with the rotating roller (8) to drive the test platform (2) to change in inclination angles of 15 degrees, 20 degrees, 15 degrees and-20 degrees;

the upper end face of the test platform (2) is provided with a weighing plate (11), and whether the motor vehicle is displaced or not when parked is monitored by data detected by the weighing plate (11).

2. The platform for testing the parking brake performance of the motor vehicle according to claim 1, wherein: the central line position of the ramp (1) groove is fixedly connected with a limiting frame (4), the upper end of the limiting frame (4) is provided with an arc-shaped groove, and the limiting frame (4) is coaxially and rotatably connected with the rotating roller (8).

3. The platform for testing the parking brake performance of the motor vehicle according to claim 1, wherein: the lower part of the test platform (2) is fixedly connected with a support (3), the support (3) is symmetrically arranged relative to the center line of the test platform (2), and the bottom of the center line of the support (3) is fixedly connected with the outer wall of the rotating roller (8).

4. The platform for testing the parking brake performance of the motor vehicle according to claim 1, wherein: the weighing plate (11) is located on one side of the testing platform (2), the upper end faces of the weighing plate (11) and the testing platform (2) are arranged in parallel, and pressure sensors are arranged at four corner positions of the weighing plate (11).

5. The platform for testing the parking brake performance of the motor vehicle according to claim 3, wherein: four logical grooves have been seted up on test platform (2), and each inboard that leads to the groove all rotates and is connected with stopper (7), stopper (7) test is personally submitted fan-shaped structure, and central symmetry sets up between four stopper (7) to four stopper (7) are close to one side and test platform (2) rotation connection of test platform (2) central line, support (3) middle section position fixedly connected with bracing piece (9), and rotate on bracing piece (9) and be connected with third pneumatic cylinder (10) to rotate between the output of third pneumatic cylinder (10) and stopper (7) and connect.