CN219142096U - Tire pressure sensor testing device - Google Patents

Abstract

The utility model relates to the technical field of automobiles, in particular to a tire pressure sensor testing device, wherein a detection box is arranged on a rack in a sliding manner up and down, a mounting plate is fixedly arranged at the bottom of the detection box, two shock absorption cylinders which extend vertically are oppositely and fixedly arranged at the front and back of the bottom of the mounting plate, a roller is rotatably arranged between the lower ends of the two shock absorption cylinders, a plurality of support shafts which extend front and back are rotatably arranged in the mounting box in parallel left and right, an annular support belt is connected to the outer sides of the support shafts in a transmission manner, the support belt is supported at the bottom of the roller, and a plurality of arc-shaped bulges are arranged on the outer surfaces of the support belts; the detection box is driven to vibrate up and down through the bulges on the supporting belt so as to simulate jolt caused by uneven pavement in the running process of the automobile, and the damping cylinder can slow down the vibration transmitted to the detection box by a part, so that the real working condition of the tire pressure sensor in the elastic tire is simulated.

Description

A tire pressure sensor testing device

technical field

The utility model relates to the technical field of automobiles, in particular to a tire pressure sensor testing device.

Background technique

The pressure sensor used on the tire needs to be tested under the environment of specific speed, specific temperature and specific pressure after production. The utility model patent with the application number CN202022531850.8 discloses a tire pressure sensor testing device, which includes a box, a test chamber, a sensor connector, a test motor, a heating rod, a temperature sensor, a pressure gauge, an air pump, and a test motor The sensor connector for fixing the detected sensor is fixed on the output shaft of the sensor, the sensor connector is located in the test chamber, the heating rod, temperature sensor and pressure gauge are installed on the box, the air pump is connected with the test chamber, and the test motor, heating rod, A temperature sensor, a pressure gauge and an air pump are respectively connected with the control electromechanic. The application provides a specific temperature for the tire pressure sensor through a heating rod and a temperature sensor, provides a specific rotation speed for the tire pressure sensor through a test motor, and provides specific pressure for the tire pressure sensor through a pressure gauge and an air pump.

However, this test equipment cannot simulate the real working conditions of the tire pressure sensor when the car is running, and the test results are not accurate enough.

Utility model content

The technical problem to be solved by the utility model is to provide a tire pressure sensor testing device, which can simulate the real working condition of the tire pressure sensor when the car is running, and the test result is more accurate, so as to solve the problems in the prior art.

In order to solve the above technical problems, the technical solution of the utility model is: a tire pressure sensor testing device, including a frame, a detection box is installed sliding up and down on the frame, and a mounting plate is fixedly installed at the bottom of the detection box. The bottom of the mounting plate is fixedly installed with two vertically extending shock absorbers, and the lower ends of the two shock absorbers are rotated and installed with rollers, and the axes of the rollers extend forward and backward; on the frame An installation box located below the detection box is fixedly installed, and a plurality of support shafts extending front and rear are installed in the installation box side by side and rotated side by side. The outer sides of the plurality of support shafts are connected with an annular support belt. The belt is supported on the bottom of the roller, the top of the installation box is provided with a passage for the roller to enter, the outer surface of the support belt is provided with a plurality of arc-shaped protrusions, and the installation box is fixedly installed There is a drive motor for rotating one of the support shafts.

As a preferred technical solution, the frame includes a bottom plate, a top plate above the bottom plate, and two vertical plates fixedly installed between the left and right ends of the bottom plate and the top plate; the installation box is fixed Installed on the bottom plate; between the bottom plate and the top plate, two vertically extending slide bars are fixedly installed between the left and right sides, and the slide bars are located on the inner side of the two vertical plates. Slide blocks are fixedly installed on the left and right sides respectively, and the slide blocks slide up and down and are installed on the corresponding slide rods.

As a preferred technical solution, the front side of the detection box is provided with an openable airtight door, and the inner side of the rear side wall of the detection box is rotatably installed with a main shaft extending forward and backward, and a sensor mounting bracket is detachably installed on the main shaft , the rear side of the detection box is fixedly installed with a detection motor for driving the main shaft to rotate; the mounting frame includes a center sleeve and an annular connecting plate coaxially arranged with the center sleeve, and the center sleeve and the Spokes are fixedly connected between the connecting plates, and the front and rear sides of the connecting plates are respectively coaxially fixed with annular mounting plates, and the mounting plates are provided with a plurality of screw holes evenly spaced around the axis.

As a preferred technical solution, the front end of the main shaft is coaxially provided with a connection part, the diameter of the connection part is smaller than the diameter of the main shaft, the center sleeve is sleeved on the connection part, and the center sleeve is fixedly installed with A connecting key, the connecting part is provided with a keyway matching the connecting key, the front end of the connecting part is provided with an external thread, and the front end of the connecting part is screwed with a limiter for pressing the center sleeve tightly. bit ring.

As a further improvement, a counterweight is fixedly installed in the detection box.

Due to the adoption of the above technical solution, a tire pressure sensor testing device includes a frame, on which a detection box is slid up and down, and a mounting plate is fixedly mounted on the bottom of the detection box, and the bottom of the mounting plate is front and rear There are two vertically extending shock absorbers relatively fixedly installed, and rollers are installed between the lower ends of the two shock absorbers, and the axes of the rollers extend forward and backward; The installation box at the bottom, inside the installation box, a plurality of support shafts extending forward and backward are installed side by side and rotated side by side. The outer side of the plurality of support shafts is connected with a ring-shaped support belt, and the support belt is supported on the side of the roller. Bottom, the top of the installation box is provided with a passage for the rollers to enter, and the outer surface of the support belt is provided with a plurality of arc-shaped protrusions. A drive motor supporting the rotation of the shaft;

This application drives the detection box to vibrate up and down through the protrusions on the support belt to simulate the bumps caused by the uneven road surface during the driving of the car. In addition, when the application is testing, the rotation speeds of multiple tire pressure sensors are consistent, so the test results of the tire pressure sensors are more accurate.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the structural representation of the installation box of the utility model embodiment;

Fig. 3 is a schematic left view of the roller of the embodiment of the utility model;

Fig. 4 is the structural representation of the detection box of the utility model embodiment;

Fig. 5 is a schematic left view of the detection box of the embodiment of the present invention.

In the figure: 1-frame; 2-detection box; 3-installation plate; 4-shock absorber; 5-roller; 6-installation box; 7-support shaft; 8-support belt; Drive motor; 11-bottom plate; 12-top plate; 13-vertical plate; 14-slider; 15-slider; 16-closed door; 17-main shaft; 18-installation frame; 19-detection motor; 21-connection plate; 22-spoke; 23-installation plate; 24-screw hole; 25-connection part; 26-connection key; 27-keyway; 28-limiting ring; 29-weight block; 30-outer cylinder; 31-piston rod; 32-shaft sleeve; 33-installation shaft.

Detailed ways

As shown in Figures 1 to 5, a tire pressure sensor testing device includes a frame 1, a detection box 2 is installed sliding up and down on the frame 1, and a mounting plate 3 is fixedly mounted on the bottom of the detection box 2. Two vertically extending shock absorbers 4 are fixedly installed at the front and back of the bottom, and rollers 5 are installed rotating between the lower ends of the two shock absorbers 4, and the axis of the rollers 5 extends forward and backward; as shown in Figure 3, the shock absorber 4 It includes an outer cylinder 30 and a piston rod 31 protruding from the lower end of the outer cylinder 30, the upper end of the outer cylinder 30 is fixed on the mounting plate 3, the lower end of the piston rod 31 is fixedly installed with a shaft sleeve 32, and the front and rear sides of the roller 5 are respectively coaxially fixed and installed. A mounting shaft 33 is arranged, and the mounting shaft 33 is rotatably installed in the corresponding axle sleeve 32 .

On the frame 1, the installation box 6 positioned at the bottom of the detection box 2 is fixedly installed. Connected with an annular support belt 8, the support belt 8 is supported on the bottom of the roller 5, the top of the installation box 6 is provided with a passage for the roller 5 to enter, and the outer surface of the support belt 8 is provided with a plurality of arc-shaped protrusions 9 , the protrusion 9 extends along the width direction of the support belt 8, and a plurality of protrusions 9 are unevenly spaced on the outer surface of the support belt 8, and the installation box 6 is fixedly installed with a drive motor 10 for driving one of the support shafts 7 to rotate.

When testing the tire pressure sensor, the drive motor 10 drives one of the support shafts 7 to rotate, the support shaft 7 drives the support belt 8 to rotate, and the support belt 8 drives the roller 5 to roll. When the support belt 8 drives one of the protrusions 9 to move to the When the roller 5 contacts, the protrusion 9 drives the detection box 2 to vibrate up and down through the roller 5 and the shock absorber 4, so as to simulate the bumps caused by the uneven road surface during driving of the car. The piston rod 31 of the shock-absorbing cylinder 4 can be stretched elastically, which can slow down a part of the vibration transmitted to the detection box 2, thereby simulating the real working condition of the tire pressure sensor in the elastic tire.

The frame 1 comprises a base plate 11, a top plate 12 above the base plate 11 and two vertical plates 13 fixedly installed between the left and right ends of the base plate 11 and the top plate 12 respectively; the installation box 6 is fixedly installed on the base plate 11; the base plate 11 There are also two vertically extending slide bars 14 fixedly installed between the top plate 12, the slide bars 14 are positioned at the inner sides of the two vertical plates 13, and the left and right sides of the detection box 2 are respectively fixedly equipped with slide blocks 15, the slide blocks 15 slides up and down and is installed on the corresponding slide bar 14, and the slide bar 14 is used for supporting the detection box 2, and improves the stability of the detection box 2 sliding up and down.

The front side of detection box 2 is provided with openable airtight door 16, is provided with heating rod and temperature sensor in detection box 2, and detection box 2 is also connected with pressure gauge and air pump, and heating rod, temperature sensor, pressure gauge, air pump are all The prior art, its working principle will not be repeated here.

As shown in Fig. 4 and Fig. 5, the inboard of the rear side wall of detection box 2 is installed with the main shaft 17 that extends forward and backward, detachably is installed with sensor mounting frame 18 on the main shaft 17, and the rear side of detection box 2 is fixedly installed with for driving The detection motor 19 that the main shaft 17 rotates; the mounting frame 18 includes a central sleeve 20 and an annular connecting plate 21 coaxially arranged with the central sleeve 20, and the spokes 22 are fixedly connected between the central sleeve 20 and the connecting plate 21, and the front and back of the connecting plate 21 An annular mounting plate 23 is coaxially fixed on both sides respectively, and a plurality of screw holes 24 are evenly spaced around the axis on the mounting plate 23 . The screw hole 24 is used to install the tire pressure sensor. Compared with the prior art where the screw hole 24 is set on the spoke 22, the present application sets the screw hole 24 on the annular mounting plate 23. When testing, multiple tire pressure The radius of rotation of the sensors is consistent, and the rotational speed is also consistent, thereby avoiding inaccurate test results caused by inconsistent rotational speeds of multiple tire pressure sensors.

The front end of main shaft 17 is coaxially provided with connection part 25, and the diameter of connection part 25 is less than the diameter of main shaft 17, and center cover 20 is sleeved on the connection part 25, and connection key 26 is fixedly installed in center cover 20, and connection part 25 is provided with The keyway 27 matched with the connection key 26 is used to avoid rotation between the center sleeve 20 and the connection part 25; The limit ring 28, after the limit ring 28 is unscrewed, the mounting bracket 18 can be removed from the detection box 2, so that the tire pressure sensor is installed on the mounting plates 23 on the front and rear sides.

A counterweight 29 is fixedly installed in the detection box 2 for stably contacting the roller 5 with the support belt 8 by gravity.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (5)

1. A tire pressure sensor testing device, characterized in that: it includes a frame, on which a detection box is slid up and down, and a mounting plate is fixedly mounted on the bottom of the detection box, and the bottom of the mounting plate is opposite to each other front and back. Two vertically extending shock absorbers are fixedly installed, and rollers are installed rotating between the lower ends of the two shock absorbers, and the axes of the rollers extend forward and backward; In the installation box, a plurality of support shafts extending forward and backward are installed side by side to rotate left and right, and the outer sides of the plurality of support shafts are connected to a ring-shaped support belt, and the support belt is supported on the bottom of the roller. , the top of the installation box is provided with a passage for the rollers to enter, and the outer surface of the support belt is provided with a plurality of arc-shaped protrusions, and the installation box is fixedly installed for driving one of the support belts. A shaft-rotating drive motor. 2. A tire pressure sensor testing device according to claim 1, wherein the frame comprises a bottom plate, a top plate located above the bottom plate, and fixedly installed on the left and right sides of the bottom plate and the top plate, respectively. Two vertical plates between the two ends; the installation box is fixedly installed on the bottom plate; two vertically extending sliding bars are fixedly installed between the bottom plate and the top plate, and the sliding bars Located on the inner sides of the two vertical plates, sliders are fixedly installed on the left and right sides of the detection box, and the sliders slide up and down and are installed on the corresponding sliders. 3. A tire pressure sensor testing device according to claim 1, characterized in that: the front side of the detection box is provided with an openable airtight door, and the inner side of the rear side wall of the detection box is rotatably installed with a front and rear door. An extended main shaft, on which a sensor installation frame is detachably installed, and a detection motor for driving the rotation of the main shaft is fixedly installed on the rear side of the detection box; the installation frame includes a center sleeve and the same An annular connecting plate arranged on the shaft, spokes are fixedly connected between the central sleeve and the connecting plate, ring-shaped mounting plates are coaxially fixed on the front and rear sides of the connecting plate, and the mounting plate is fixed around the axis A plurality of screw holes are evenly spaced. 4. A tire pressure sensor testing device according to claim 3, characterized in that: the front end of the main shaft is coaxially provided with a connecting part, the diameter of the connecting part is smaller than the diameter of the main shaft, and the center sleeve On the connecting part, a connecting key is fixedly installed in the center sleeve, a keyway matching the connecting key is provided on the connecting part, an external thread is provided at the front end of the connecting part, and an external thread is provided on the connecting part. The front end is screwed with a limit ring for compressing the center sleeve. 5 . The tire pressure sensor testing device according to claim 1 , wherein a counterweight is fixedly installed in the testing box. 5 .

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